java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBpl.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/programs/regression/bpl/AutomizerBpl-nestedInterpolants.epf -i ../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/down.i_4.bplTransformedIcfg_BEv2_5.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-935f392 [2018-07-23 13:40:46,950 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 13:40:46,953 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 13:40:46,970 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 13:40:46,970 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 13:40:46,971 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 13:40:46,973 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 13:40:46,974 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 13:40:46,976 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 13:40:46,977 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 13:40:46,978 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-07-23 13:40:47,007 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/regression/bpl/AutomizerBpl-nestedInterpolants.epf [2018-07-23 13:40:47,025 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 13:40:47,025 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 13:40:47,026 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 13:40:47,027 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-07-23 13:40:47,027 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 13:40:47,027 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-07-23 13:40:47,027 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-23 13:40:47,027 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 13:40:47,084 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 13:40:47,105 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 13:40:47,113 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 13:40:47,114 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-23 13:40:47,115 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-23 13:40:47,116 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/down.i_4.bplTransformedIcfg_BEv2_5.bpl [2018-07-23 13:40:47,116 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/down.i_4.bplTransformedIcfg_BEv2_5.bpl' [2018-07-23 13:40:47,196 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 13:40:47,198 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-07-23 13:40:47,198 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 13:40:47,199 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 13:40:47,199 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 13:40:47,228 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "down.i_4.bplTransformedIcfg_BEv2_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:40:47" (1/1) ... [2018-07-23 13:40:47,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "down.i_4.bplTransformedIcfg_BEv2_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:40:47" (1/1) ... [2018-07-23 13:40:47,240 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "down.i_4.bplTransformedIcfg_BEv2_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:40:47" (1/1) ... [2018-07-23 13:40:47,240 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "down.i_4.bplTransformedIcfg_BEv2_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:40:47" (1/1) ... [2018-07-23 13:40:47,244 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "down.i_4.bplTransformedIcfg_BEv2_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:40:47" (1/1) ... [2018-07-23 13:40:47,247 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "down.i_4.bplTransformedIcfg_BEv2_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:40:47" (1/1) ... [2018-07-23 13:40:47,249 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "down.i_4.bplTransformedIcfg_BEv2_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:40:47" (1/1) ... [2018-07-23 13:40:47,251 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 13:40:47,252 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 13:40:47,253 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 13:40:47,253 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 13:40:47,254 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "down.i_4.bplTransformedIcfg_BEv2_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:40:47" (1/1) ... [2018-07-23 13:40:47,344 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-07-23 13:40:47,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 13:40:47,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 13:40:47,557 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 13:40:47,557 INFO L202 PluginConnector]: Adding new model down.i_4.bplTransformedIcfg_BEv2_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:40:47 BoogieIcfgContainer [2018-07-23 13:40:47,558 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 13:40:47,559 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 13:40:47,559 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 13:40:47,562 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 13:40:47,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "down.i_4.bplTransformedIcfg_BEv2_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:40:47" (1/2) ... [2018-07-23 13:40:47,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a2748b5 and model type down.i_4.bplTransformedIcfg_BEv2_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:40:47, skipping insertion in model container [2018-07-23 13:40:47,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "down.i_4.bplTransformedIcfg_BEv2_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:40:47" (2/2) ... [2018-07-23 13:40:47,567 INFO L112 eAbstractionObserver]: Analyzing ICFG down.i_4.bplTransformedIcfg_BEv2_5.bpl [2018-07-23 13:40:47,577 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-07-23 13:40:47,585 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 13:40:47,629 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 13:40:47,629 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 13:40:47,629 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 13:40:47,630 INFO L375 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-07-23 13:40:47,630 INFO L376 AbstractCegarLoop]: Backedges is CANONICAL [2018-07-23 13:40:47,630 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 13:40:47,630 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 13:40:47,630 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 13:40:47,630 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 13:40:47,643 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2018-07-23 13:40:47,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-07-23 13:40:47,652 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:40:47,652 INFO L357 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2018-07-23 13:40:47,653 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:40:47,657 INFO L82 PathProgramCache]: Analyzing trace with hash 28868155, now seen corresponding path program 1 times [2018-07-23 13:40:47,662 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:40:47,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:40:47,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:47,735 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 13:40:47,735 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 13:40:47,737 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:40:47,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:47,738 INFO L185 omatonBuilderFactory]: Interpolants [10#true, 11#false, 12#(<= ULTIMATE.start_main_~i~5 0), 13#(<= ULTIMATE.start_main_~j~5 0)] [2018-07-23 13:40:47,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:47,739 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 13:40:47,754 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 13:40:47,755 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-23 13:40:47,758 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 4 states. [2018-07-23 13:40:47,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:40:47,805 INFO L93 Difference]: Finished difference Result 13 states and 16 transitions. [2018-07-23 13:40:47,806 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 13:40:47,807 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2018-07-23 13:40:47,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:40:47,818 INFO L225 Difference]: With dead ends: 13 [2018-07-23 13:40:47,818 INFO L226 Difference]: Without dead ends: 7 [2018-07-23 13:40:47,822 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-07-23 13:40:47,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-07-23 13:40:47,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-07-23 13:40:47,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-07-23 13:40:47,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2018-07-23 13:40:47,857 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 8 transitions. Word has length 5 [2018-07-23 13:40:47,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:40:47,857 INFO L471 AbstractCegarLoop]: Abstraction has 7 states and 8 transitions. [2018-07-23 13:40:47,858 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 13:40:47,858 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2018-07-23 13:40:47,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-23 13:40:47,858 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:40:47,859 INFO L357 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-07-23 13:40:47,859 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:40:47,859 INFO L82 PathProgramCache]: Analyzing trace with hash 892360290, now seen corresponding path program 1 times [2018-07-23 13:40:47,860 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:40:47,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:40:47,890 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:47,891 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 13:40:47,891 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-23 13:40:47,891 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:40:47,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:47,892 INFO L185 omatonBuilderFactory]: Interpolants [56#true, 57#false, 58#(<= 0 ULTIMATE.start_main_~k~5), 59#(<= 1 ULTIMATE.start_main_~k~5), 60#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond)] [2018-07-23 13:40:47,892 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:47,895 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-23 13:40:47,895 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-23 13:40:47,896 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-07-23 13:40:47,896 INFO L87 Difference]: Start difference. First operand 7 states and 8 transitions. Second operand 5 states. [2018-07-23 13:40:47,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:40:47,957 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2018-07-23 13:40:47,957 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-23 13:40:47,958 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 6 [2018-07-23 13:40:47,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:40:47,958 INFO L225 Difference]: With dead ends: 15 [2018-07-23 13:40:47,959 INFO L226 Difference]: Without dead ends: 13 [2018-07-23 13:40:47,960 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-07-23 13:40:47,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2018-07-23 13:40:47,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 9. [2018-07-23 13:40:47,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-07-23 13:40:47,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2018-07-23 13:40:47,963 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 6 [2018-07-23 13:40:47,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:40:47,964 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2018-07-23 13:40:47,964 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-23 13:40:47,964 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2018-07-23 13:40:47,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-07-23 13:40:47,965 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:40:47,965 INFO L357 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2018-07-23 13:40:47,965 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:40:47,965 INFO L82 PathProgramCache]: Analyzing trace with hash -1435154486, now seen corresponding path program 1 times [2018-07-23 13:40:47,966 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:40:47,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:40:47,997 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:47,997 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:40:47,997 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-07-23 13:40:47,998 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:40:47,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:47,998 INFO L185 omatonBuilderFactory]: Interpolants [113#true, 114#false, 115#(<= ULTIMATE.start_main_~i~5 0), 116#(<= ULTIMATE.start_main_~i~5 1), 117#(<= ULTIMATE.start_main_~j~5 1), 118#(<= ULTIMATE.start_main_~j~5 0)] [2018-07-23 13:40:47,999 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:47,999 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 13:40:47,999 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 13:40:47,999 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-23 13:40:48,000 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand 6 states. [2018-07-23 13:40:48,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:40:48,049 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2018-07-23 13:40:48,049 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-23 13:40:48,050 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2018-07-23 13:40:48,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:40:48,050 INFO L225 Difference]: With dead ends: 17 [2018-07-23 13:40:48,050 INFO L226 Difference]: Without dead ends: 10 [2018-07-23 13:40:48,051 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-07-23 13:40:48,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2018-07-23 13:40:48,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-07-23 13:40:48,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-07-23 13:40:48,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2018-07-23 13:40:48,055 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 8 [2018-07-23 13:40:48,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:40:48,055 INFO L471 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2018-07-23 13:40:48,055 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 13:40:48,056 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2018-07-23 13:40:48,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-07-23 13:40:48,056 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:40:48,056 INFO L357 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2018-07-23 13:40:48,057 INFO L414 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:40:48,057 INFO L82 PathProgramCache]: Analyzing trace with hash 299903555, now seen corresponding path program 2 times [2018-07-23 13:40:48,057 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:40:48,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:40:48,092 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:48,092 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:40:48,092 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-07-23 13:40:48,092 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:40:48,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:48,093 INFO L185 omatonBuilderFactory]: Interpolants [177#true, 178#false, 179#(<= 0 ULTIMATE.start_main_~k~5), 180#(<= 1 ULTIMATE.start_main_~k~5), 181#(<= 2 ULTIMATE.start_main_~k~5), 182#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond)] [2018-07-23 13:40:48,093 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:48,094 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 13:40:48,094 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 13:40:48,094 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-23 13:40:48,097 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand 6 states. [2018-07-23 13:40:48,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:40:48,190 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2018-07-23 13:40:48,190 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-23 13:40:48,190 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2018-07-23 13:40:48,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:40:48,191 INFO L225 Difference]: With dead ends: 18 [2018-07-23 13:40:48,191 INFO L226 Difference]: Without dead ends: 16 [2018-07-23 13:40:48,192 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2018-07-23 13:40:48,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-07-23 13:40:48,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 12. [2018-07-23 13:40:48,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-07-23 13:40:48,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2018-07-23 13:40:48,197 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 9 [2018-07-23 13:40:48,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:40:48,198 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2018-07-23 13:40:48,198 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 13:40:48,198 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2018-07-23 13:40:48,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-07-23 13:40:48,199 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:40:48,199 INFO L357 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2018-07-23 13:40:48,199 INFO L414 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:40:48,199 INFO L82 PathProgramCache]: Analyzing trace with hash 444573547, now seen corresponding path program 3 times [2018-07-23 13:40:48,200 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:40:48,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:40:48,248 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:48,249 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:40:48,249 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2018-07-23 13:40:48,249 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:40:48,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:48,253 INFO L185 omatonBuilderFactory]: Interpolants [256#(<= ULTIMATE.start_main_~j~5 0), 249#true, 250#false, 251#(<= ULTIMATE.start_main_~i~5 0), 252#(<= ULTIMATE.start_main_~i~5 1), 253#(<= ULTIMATE.start_main_~i~5 2), 254#(<= ULTIMATE.start_main_~j~5 2), 255#(<= ULTIMATE.start_main_~j~5 1)] [2018-07-23 13:40:48,253 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:48,253 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-23 13:40:48,254 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-23 13:40:48,254 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-23 13:40:48,254 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. Second operand 8 states. [2018-07-23 13:40:48,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:40:48,320 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2018-07-23 13:40:48,320 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-23 13:40:48,321 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2018-07-23 13:40:48,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:40:48,321 INFO L225 Difference]: With dead ends: 22 [2018-07-23 13:40:48,322 INFO L226 Difference]: Without dead ends: 13 [2018-07-23 13:40:48,322 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2018-07-23 13:40:48,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2018-07-23 13:40:48,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-07-23 13:40:48,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-07-23 13:40:48,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-07-23 13:40:48,327 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 11 [2018-07-23 13:40:48,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:40:48,327 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2018-07-23 13:40:48,328 INFO L472 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-23 13:40:48,328 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2018-07-23 13:40:48,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-07-23 13:40:48,328 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:40:48,329 INFO L357 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1] [2018-07-23 13:40:48,329 INFO L414 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:40:48,329 INFO L82 PathProgramCache]: Analyzing trace with hash -372734382, now seen corresponding path program 4 times [2018-07-23 13:40:48,329 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:40:48,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:40:48,379 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:48,380 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:40:48,380 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2018-07-23 13:40:48,380 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:40:48,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:48,381 INFO L185 omatonBuilderFactory]: Interpolants [336#(<= 1 ULTIMATE.start_main_~k~5), 337#(<= 2 ULTIMATE.start_main_~k~5), 338#(<= 3 ULTIMATE.start_main_~k~5), 339#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 333#true, 334#false, 335#(<= 0 ULTIMATE.start_main_~k~5)] [2018-07-23 13:40:48,382 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:48,383 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-23 13:40:48,383 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-23 13:40:48,383 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-07-23 13:40:48,384 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand 7 states. [2018-07-23 13:40:48,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:40:48,435 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2018-07-23 13:40:48,436 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-07-23 13:40:48,436 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2018-07-23 13:40:48,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:40:48,443 INFO L225 Difference]: With dead ends: 21 [2018-07-23 13:40:48,444 INFO L226 Difference]: Without dead ends: 19 [2018-07-23 13:40:48,445 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2018-07-23 13:40:48,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-07-23 13:40:48,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 15. [2018-07-23 13:40:48,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-07-23 13:40:48,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2018-07-23 13:40:48,453 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 12 [2018-07-23 13:40:48,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:40:48,454 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2018-07-23 13:40:48,454 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-23 13:40:48,454 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2018-07-23 13:40:48,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-07-23 13:40:48,455 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:40:48,455 INFO L357 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2018-07-23 13:40:48,456 INFO L414 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:40:48,456 INFO L82 PathProgramCache]: Analyzing trace with hash -1715389510, now seen corresponding path program 5 times [2018-07-23 13:40:48,456 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:40:48,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:40:48,520 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:48,520 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:40:48,520 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2018-07-23 13:40:48,521 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:40:48,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:48,522 INFO L185 omatonBuilderFactory]: Interpolants [420#true, 421#false, 422#(<= ULTIMATE.start_main_~i~5 0), 423#(<= ULTIMATE.start_main_~i~5 1), 424#(<= ULTIMATE.start_main_~i~5 2), 425#(<= ULTIMATE.start_main_~i~5 3), 426#(<= ULTIMATE.start_main_~j~5 3), 427#(<= ULTIMATE.start_main_~j~5 2), 428#(<= ULTIMATE.start_main_~j~5 1), 429#(<= ULTIMATE.start_main_~j~5 0)] [2018-07-23 13:40:48,522 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:48,523 INFO L450 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-07-23 13:40:48,523 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-07-23 13:40:48,523 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-07-23 13:40:48,524 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand 10 states. [2018-07-23 13:40:48,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:40:48,593 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2018-07-23 13:40:48,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-07-23 13:40:48,594 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 14 [2018-07-23 13:40:48,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:40:48,595 INFO L225 Difference]: With dead ends: 27 [2018-07-23 13:40:48,595 INFO L226 Difference]: Without dead ends: 16 [2018-07-23 13:40:48,596 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2018-07-23 13:40:48,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-07-23 13:40:48,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-07-23 13:40:48,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-07-23 13:40:48,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2018-07-23 13:40:48,601 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 14 [2018-07-23 13:40:48,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:40:48,601 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2018-07-23 13:40:48,601 INFO L472 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-07-23 13:40:48,602 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2018-07-23 13:40:48,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-07-23 13:40:48,602 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:40:48,603 INFO L357 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1] [2018-07-23 13:40:48,603 INFO L414 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:40:48,603 INFO L82 PathProgramCache]: Analyzing trace with hash -1966301325, now seen corresponding path program 6 times [2018-07-23 13:40:48,603 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:40:48,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:40:48,651 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:48,651 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:40:48,652 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2018-07-23 13:40:48,652 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:40:48,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:48,653 INFO L185 omatonBuilderFactory]: Interpolants [528#(<= 2 ULTIMATE.start_main_~k~5), 529#(<= 3 ULTIMATE.start_main_~k~5), 530#(<= 4 ULTIMATE.start_main_~k~5), 531#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 524#true, 525#false, 526#(<= 0 ULTIMATE.start_main_~k~5), 527#(<= 1 ULTIMATE.start_main_~k~5)] [2018-07-23 13:40:48,653 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:48,653 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-23 13:40:48,654 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-23 13:40:48,654 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2018-07-23 13:40:48,654 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 8 states. [2018-07-23 13:40:48,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:40:48,720 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2018-07-23 13:40:48,720 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-07-23 13:40:48,720 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2018-07-23 13:40:48,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:40:48,724 INFO L225 Difference]: With dead ends: 24 [2018-07-23 13:40:48,724 INFO L226 Difference]: Without dead ends: 22 [2018-07-23 13:40:48,725 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2018-07-23 13:40:48,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-07-23 13:40:48,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 18. [2018-07-23 13:40:48,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-07-23 13:40:48,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2018-07-23 13:40:48,734 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 15 [2018-07-23 13:40:48,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:40:48,735 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2018-07-23 13:40:48,735 INFO L472 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-23 13:40:48,735 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2018-07-23 13:40:48,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-07-23 13:40:48,736 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:40:48,736 INFO L357 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1] [2018-07-23 13:40:48,736 INFO L414 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:40:48,737 INFO L82 PathProgramCache]: Analyzing trace with hash 170102939, now seen corresponding path program 7 times [2018-07-23 13:40:48,737 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:40:48,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:40:48,799 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:48,800 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:40:48,800 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-07-23 13:40:48,800 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:40:48,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:48,801 INFO L185 omatonBuilderFactory]: Interpolants [626#true, 627#false, 628#(<= ULTIMATE.start_main_~i~5 0), 629#(<= ULTIMATE.start_main_~i~5 1), 630#(<= ULTIMATE.start_main_~i~5 2), 631#(<= ULTIMATE.start_main_~i~5 3), 632#(<= ULTIMATE.start_main_~i~5 4), 633#(<= ULTIMATE.start_main_~j~5 4), 634#(<= ULTIMATE.start_main_~j~5 3), 635#(<= ULTIMATE.start_main_~j~5 2), 636#(<= ULTIMATE.start_main_~j~5 1), 637#(<= ULTIMATE.start_main_~j~5 0)] [2018-07-23 13:40:48,801 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:48,805 INFO L450 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-07-23 13:40:48,806 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-07-23 13:40:48,806 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-07-23 13:40:48,807 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 12 states. [2018-07-23 13:40:48,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:40:48,864 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2018-07-23 13:40:48,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-07-23 13:40:48,864 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 17 [2018-07-23 13:40:48,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:40:48,865 INFO L225 Difference]: With dead ends: 32 [2018-07-23 13:40:48,865 INFO L226 Difference]: Without dead ends: 19 [2018-07-23 13:40:48,866 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2018-07-23 13:40:48,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-07-23 13:40:48,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-07-23 13:40:48,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-07-23 13:40:48,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2018-07-23 13:40:48,876 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 17 [2018-07-23 13:40:48,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:40:48,878 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2018-07-23 13:40:48,878 INFO L472 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-07-23 13:40:48,878 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2018-07-23 13:40:48,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-07-23 13:40:48,879 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:40:48,879 INFO L357 BasicCegarLoop]: trace histogram [5, 5, 4, 1, 1, 1, 1] [2018-07-23 13:40:48,879 INFO L414 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:40:48,880 INFO L82 PathProgramCache]: Analyzing trace with hash -1500682686, now seen corresponding path program 8 times [2018-07-23 13:40:48,880 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:40:48,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:40:48,924 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 15 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:48,924 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:40:48,925 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2018-07-23 13:40:48,925 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:40:48,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:48,929 INFO L185 omatonBuilderFactory]: Interpolants [752#(<= 0 ULTIMATE.start_main_~k~5), 753#(<= 1 ULTIMATE.start_main_~k~5), 754#(<= 2 ULTIMATE.start_main_~k~5), 755#(<= 3 ULTIMATE.start_main_~k~5), 756#(<= 4 ULTIMATE.start_main_~k~5), 757#(<= 5 ULTIMATE.start_main_~k~5), 758#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 750#true, 751#false] [2018-07-23 13:40:48,929 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 15 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:48,929 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-23 13:40:48,930 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-23 13:40:48,930 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2018-07-23 13:40:48,930 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand 9 states. [2018-07-23 13:40:48,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:40:48,992 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2018-07-23 13:40:48,992 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-07-23 13:40:48,992 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2018-07-23 13:40:48,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:40:48,994 INFO L225 Difference]: With dead ends: 27 [2018-07-23 13:40:48,994 INFO L226 Difference]: Without dead ends: 25 [2018-07-23 13:40:48,995 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=84, Invalid=126, Unknown=0, NotChecked=0, Total=210 [2018-07-23 13:40:48,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-07-23 13:40:49,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 21. [2018-07-23 13:40:49,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-07-23 13:40:49,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2018-07-23 13:40:49,002 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 18 [2018-07-23 13:40:49,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:40:49,004 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2018-07-23 13:40:49,004 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-23 13:40:49,004 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2018-07-23 13:40:49,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-07-23 13:40:49,005 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:40:49,005 INFO L357 BasicCegarLoop]: trace histogram [6, 5, 5, 1, 1, 1, 1] [2018-07-23 13:40:49,006 INFO L414 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:40:49,006 INFO L82 PathProgramCache]: Analyzing trace with hash 953016234, now seen corresponding path program 9 times [2018-07-23 13:40:49,006 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:40:49,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:40:49,060 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 30 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:49,061 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:40:49,061 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2018-07-23 13:40:49,061 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:40:49,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:49,062 INFO L185 omatonBuilderFactory]: Interpolants [867#true, 868#false, 869#(<= ULTIMATE.start_main_~i~5 0), 870#(<= ULTIMATE.start_main_~i~5 1), 871#(<= ULTIMATE.start_main_~i~5 2), 872#(<= ULTIMATE.start_main_~i~5 3), 873#(<= ULTIMATE.start_main_~i~5 4), 874#(<= ULTIMATE.start_main_~i~5 5), 875#(<= ULTIMATE.start_main_~j~5 5), 876#(<= ULTIMATE.start_main_~j~5 4), 877#(<= ULTIMATE.start_main_~j~5 3), 878#(<= ULTIMATE.start_main_~j~5 2), 879#(<= ULTIMATE.start_main_~j~5 1), 880#(<= ULTIMATE.start_main_~j~5 0)] [2018-07-23 13:40:49,063 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 30 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:49,063 INFO L450 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-07-23 13:40:49,063 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-07-23 13:40:49,064 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2018-07-23 13:40:49,065 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 14 states. [2018-07-23 13:40:49,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:40:49,151 INFO L93 Difference]: Finished difference Result 37 states and 39 transitions. [2018-07-23 13:40:49,151 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-07-23 13:40:49,152 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 20 [2018-07-23 13:40:49,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:40:49,156 INFO L225 Difference]: With dead ends: 37 [2018-07-23 13:40:49,156 INFO L226 Difference]: Without dead ends: 22 [2018-07-23 13:40:49,159 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=109, Invalid=271, Unknown=0, NotChecked=0, Total=380 [2018-07-23 13:40:49,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-07-23 13:40:49,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-07-23 13:40:49,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-07-23 13:40:49,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2018-07-23 13:40:49,168 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 20 [2018-07-23 13:40:49,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:40:49,168 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2018-07-23 13:40:49,168 INFO L472 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-07-23 13:40:49,168 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2018-07-23 13:40:49,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-07-23 13:40:49,169 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:40:49,170 INFO L357 BasicCegarLoop]: trace histogram [6, 6, 5, 1, 1, 1, 1] [2018-07-23 13:40:49,170 INFO L414 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:40:49,170 INFO L82 PathProgramCache]: Analyzing trace with hash 954455203, now seen corresponding path program 10 times [2018-07-23 13:40:49,172 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:40:49,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:40:49,210 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 21 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:49,211 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:40:49,211 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2018-07-23 13:40:49,211 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:40:49,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:49,213 INFO L185 omatonBuilderFactory]: Interpolants [1011#true, 1012#false, 1013#(<= 0 ULTIMATE.start_main_~k~5), 1014#(<= 1 ULTIMATE.start_main_~k~5), 1015#(<= 2 ULTIMATE.start_main_~k~5), 1016#(<= 3 ULTIMATE.start_main_~k~5), 1017#(<= 4 ULTIMATE.start_main_~k~5), 1018#(<= 5 ULTIMATE.start_main_~k~5), 1019#(<= 6 ULTIMATE.start_main_~k~5), 1020#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond)] [2018-07-23 13:40:49,213 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 21 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:49,213 INFO L450 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-07-23 13:40:49,214 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-07-23 13:40:49,214 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2018-07-23 13:40:49,216 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 10 states. [2018-07-23 13:40:49,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:40:49,270 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2018-07-23 13:40:49,271 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-07-23 13:40:49,271 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 21 [2018-07-23 13:40:49,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:40:49,272 INFO L225 Difference]: With dead ends: 30 [2018-07-23 13:40:49,272 INFO L226 Difference]: Without dead ends: 28 [2018-07-23 13:40:49,273 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=108, Invalid=164, Unknown=0, NotChecked=0, Total=272 [2018-07-23 13:40:49,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-07-23 13:40:49,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 24. [2018-07-23 13:40:49,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-07-23 13:40:49,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2018-07-23 13:40:49,282 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 21 [2018-07-23 13:40:49,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:40:49,283 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2018-07-23 13:40:49,283 INFO L472 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-07-23 13:40:49,283 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2018-07-23 13:40:49,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-07-23 13:40:49,284 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:40:49,284 INFO L357 BasicCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1] [2018-07-23 13:40:49,284 INFO L414 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:40:49,289 INFO L82 PathProgramCache]: Analyzing trace with hash -1891485237, now seen corresponding path program 11 times [2018-07-23 13:40:49,289 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:40:49,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:40:49,371 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 42 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:49,372 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:40:49,372 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2018-07-23 13:40:49,372 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:40:49,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:49,373 INFO L185 omatonBuilderFactory]: Interpolants [1152#(<= ULTIMATE.start_main_~j~5 6), 1153#(<= ULTIMATE.start_main_~j~5 5), 1154#(<= ULTIMATE.start_main_~j~5 4), 1155#(<= ULTIMATE.start_main_~j~5 3), 1156#(<= ULTIMATE.start_main_~j~5 2), 1157#(<= ULTIMATE.start_main_~j~5 1), 1158#(<= ULTIMATE.start_main_~j~5 0), 1143#true, 1144#false, 1145#(<= ULTIMATE.start_main_~i~5 0), 1146#(<= ULTIMATE.start_main_~i~5 1), 1147#(<= ULTIMATE.start_main_~i~5 2), 1148#(<= ULTIMATE.start_main_~i~5 3), 1149#(<= ULTIMATE.start_main_~i~5 4), 1150#(<= ULTIMATE.start_main_~i~5 5), 1151#(<= ULTIMATE.start_main_~i~5 6)] [2018-07-23 13:40:49,374 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 42 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:49,374 INFO L450 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-07-23 13:40:49,375 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-07-23 13:40:49,375 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2018-07-23 13:40:49,375 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand 16 states. [2018-07-23 13:40:49,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:40:49,444 INFO L93 Difference]: Finished difference Result 42 states and 44 transitions. [2018-07-23 13:40:49,445 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-07-23 13:40:49,445 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 23 [2018-07-23 13:40:49,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:40:49,446 INFO L225 Difference]: With dead ends: 42 [2018-07-23 13:40:49,446 INFO L226 Difference]: Without dead ends: 25 [2018-07-23 13:40:49,447 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=141, Invalid=365, Unknown=0, NotChecked=0, Total=506 [2018-07-23 13:40:49,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-07-23 13:40:49,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-07-23 13:40:49,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-07-23 13:40:49,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2018-07-23 13:40:49,456 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 23 [2018-07-23 13:40:49,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:40:49,456 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2018-07-23 13:40:49,456 INFO L472 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-07-23 13:40:49,456 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2018-07-23 13:40:49,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-07-23 13:40:49,457 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:40:49,458 INFO L357 BasicCegarLoop]: trace histogram [7, 7, 6, 1, 1, 1, 1] [2018-07-23 13:40:49,459 INFO L414 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:40:49,459 INFO L82 PathProgramCache]: Analyzing trace with hash -1972832718, now seen corresponding path program 12 times [2018-07-23 13:40:49,459 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:40:49,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:40:49,506 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 28 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:49,506 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:40:49,507 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2018-07-23 13:40:49,507 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:40:49,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:49,508 INFO L185 omatonBuilderFactory]: Interpolants [1312#(<= 3 ULTIMATE.start_main_~k~5), 1313#(<= 4 ULTIMATE.start_main_~k~5), 1314#(<= 5 ULTIMATE.start_main_~k~5), 1315#(<= 6 ULTIMATE.start_main_~k~5), 1316#(<= 7 ULTIMATE.start_main_~k~5), 1317#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 1307#true, 1308#false, 1309#(<= 0 ULTIMATE.start_main_~k~5), 1310#(<= 1 ULTIMATE.start_main_~k~5), 1311#(<= 2 ULTIMATE.start_main_~k~5)] [2018-07-23 13:40:49,509 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 28 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:49,509 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-23 13:40:49,509 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-23 13:40:49,509 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2018-07-23 13:40:49,510 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 11 states. [2018-07-23 13:40:49,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:40:49,567 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2018-07-23 13:40:49,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-07-23 13:40:49,568 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 24 [2018-07-23 13:40:49,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:40:49,569 INFO L225 Difference]: With dead ends: 33 [2018-07-23 13:40:49,569 INFO L226 Difference]: Without dead ends: 31 [2018-07-23 13:40:49,570 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=135, Invalid=207, Unknown=0, NotChecked=0, Total=342 [2018-07-23 13:40:49,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-07-23 13:40:49,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 27. [2018-07-23 13:40:49,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-07-23 13:40:49,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2018-07-23 13:40:49,579 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 24 [2018-07-23 13:40:49,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:40:49,580 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2018-07-23 13:40:49,580 INFO L472 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-07-23 13:40:49,580 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2018-07-23 13:40:49,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-07-23 13:40:49,581 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:40:49,581 INFO L357 BasicCegarLoop]: trace histogram [8, 7, 7, 1, 1, 1, 1] [2018-07-23 13:40:49,581 INFO L414 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:40:49,582 INFO L82 PathProgramCache]: Analyzing trace with hash -1811598438, now seen corresponding path program 13 times [2018-07-23 13:40:49,582 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:40:49,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:40:49,642 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 56 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:49,643 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:40:49,643 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2018-07-23 13:40:49,643 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:40:49,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:49,644 INFO L185 omatonBuilderFactory]: Interpolants [1454#true, 1455#false, 1456#(<= ULTIMATE.start_main_~i~5 0), 1457#(<= ULTIMATE.start_main_~i~5 1), 1458#(<= ULTIMATE.start_main_~i~5 2), 1459#(<= ULTIMATE.start_main_~i~5 3), 1460#(<= ULTIMATE.start_main_~i~5 4), 1461#(<= ULTIMATE.start_main_~i~5 5), 1462#(<= ULTIMATE.start_main_~i~5 6), 1463#(<= ULTIMATE.start_main_~i~5 7), 1464#(<= ULTIMATE.start_main_~j~5 7), 1465#(<= ULTIMATE.start_main_~j~5 6), 1466#(<= ULTIMATE.start_main_~j~5 5), 1467#(<= ULTIMATE.start_main_~j~5 4), 1468#(<= ULTIMATE.start_main_~j~5 3), 1469#(<= ULTIMATE.start_main_~j~5 2), 1470#(<= ULTIMATE.start_main_~j~5 1), 1471#(<= ULTIMATE.start_main_~j~5 0)] [2018-07-23 13:40:49,645 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 56 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:49,645 INFO L450 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-07-23 13:40:49,645 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-07-23 13:40:49,646 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2018-07-23 13:40:49,647 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 18 states. [2018-07-23 13:40:49,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:40:49,730 INFO L93 Difference]: Finished difference Result 47 states and 49 transitions. [2018-07-23 13:40:49,730 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-07-23 13:40:49,731 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 26 [2018-07-23 13:40:49,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:40:49,731 INFO L225 Difference]: With dead ends: 47 [2018-07-23 13:40:49,732 INFO L226 Difference]: Without dead ends: 28 [2018-07-23 13:40:49,733 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=177, Invalid=473, Unknown=0, NotChecked=0, Total=650 [2018-07-23 13:40:49,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-07-23 13:40:49,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-07-23 13:40:49,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-07-23 13:40:49,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2018-07-23 13:40:49,741 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 26 [2018-07-23 13:40:49,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:40:49,741 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2018-07-23 13:40:49,741 INFO L472 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-07-23 13:40:49,742 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2018-07-23 13:40:49,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-07-23 13:40:49,742 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:40:49,743 INFO L357 BasicCegarLoop]: trace histogram [8, 8, 7, 1, 1, 1, 1] [2018-07-23 13:40:49,743 INFO L414 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:40:49,743 INFO L82 PathProgramCache]: Analyzing trace with hash 1422117331, now seen corresponding path program 14 times [2018-07-23 13:40:49,743 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:40:49,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:40:49,792 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 36 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:49,793 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:40:49,793 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-07-23 13:40:49,793 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:40:49,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:49,794 INFO L185 omatonBuilderFactory]: Interpolants [1648#(<= 8 ULTIMATE.start_main_~k~5), 1649#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 1638#true, 1639#false, 1640#(<= 0 ULTIMATE.start_main_~k~5), 1641#(<= 1 ULTIMATE.start_main_~k~5), 1642#(<= 2 ULTIMATE.start_main_~k~5), 1643#(<= 3 ULTIMATE.start_main_~k~5), 1644#(<= 4 ULTIMATE.start_main_~k~5), 1645#(<= 5 ULTIMATE.start_main_~k~5), 1646#(<= 6 ULTIMATE.start_main_~k~5), 1647#(<= 7 ULTIMATE.start_main_~k~5)] [2018-07-23 13:40:49,798 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 36 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:49,798 INFO L450 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-07-23 13:40:49,798 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-07-23 13:40:49,799 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2018-07-23 13:40:49,799 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand 12 states. [2018-07-23 13:40:49,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:40:49,866 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2018-07-23 13:40:49,866 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-07-23 13:40:49,866 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 27 [2018-07-23 13:40:49,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:40:49,867 INFO L225 Difference]: With dead ends: 36 [2018-07-23 13:40:49,873 INFO L226 Difference]: Without dead ends: 34 [2018-07-23 13:40:49,874 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=165, Invalid=255, Unknown=0, NotChecked=0, Total=420 [2018-07-23 13:40:49,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-07-23 13:40:49,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 30. [2018-07-23 13:40:49,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-07-23 13:40:49,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2018-07-23 13:40:49,885 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 27 [2018-07-23 13:40:49,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:40:49,886 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2018-07-23 13:40:49,886 INFO L472 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-07-23 13:40:49,886 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2018-07-23 13:40:49,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-07-23 13:40:49,887 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:40:49,887 INFO L357 BasicCegarLoop]: trace histogram [9, 8, 8, 1, 1, 1, 1] [2018-07-23 13:40:49,888 INFO L414 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:40:49,888 INFO L82 PathProgramCache]: Analyzing trace with hash 855220987, now seen corresponding path program 15 times [2018-07-23 13:40:49,888 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:40:49,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:40:49,965 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 72 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:49,965 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:40:49,966 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2018-07-23 13:40:49,966 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:40:49,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:49,967 INFO L185 omatonBuilderFactory]: Interpolants [1800#true, 1801#false, 1802#(<= ULTIMATE.start_main_~i~5 0), 1803#(<= ULTIMATE.start_main_~i~5 1), 1804#(<= ULTIMATE.start_main_~i~5 2), 1805#(<= ULTIMATE.start_main_~i~5 3), 1806#(<= ULTIMATE.start_main_~i~5 4), 1807#(<= ULTIMATE.start_main_~i~5 5), 1808#(<= ULTIMATE.start_main_~i~5 6), 1809#(<= ULTIMATE.start_main_~i~5 7), 1810#(<= ULTIMATE.start_main_~i~5 8), 1811#(<= ULTIMATE.start_main_~j~5 8), 1812#(<= ULTIMATE.start_main_~j~5 7), 1813#(<= ULTIMATE.start_main_~j~5 6), 1814#(<= ULTIMATE.start_main_~j~5 5), 1815#(<= ULTIMATE.start_main_~j~5 4), 1816#(<= ULTIMATE.start_main_~j~5 3), 1817#(<= ULTIMATE.start_main_~j~5 2), 1818#(<= ULTIMATE.start_main_~j~5 1), 1819#(<= ULTIMATE.start_main_~j~5 0)] [2018-07-23 13:40:49,968 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 72 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:49,968 INFO L450 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-07-23 13:40:49,968 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-07-23 13:40:49,969 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=271, Unknown=0, NotChecked=0, Total=380 [2018-07-23 13:40:49,969 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 20 states. [2018-07-23 13:40:50,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:40:50,063 INFO L93 Difference]: Finished difference Result 52 states and 54 transitions. [2018-07-23 13:40:50,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-07-23 13:40:50,064 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 29 [2018-07-23 13:40:50,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:40:50,064 INFO L225 Difference]: With dead ends: 52 [2018-07-23 13:40:50,064 INFO L226 Difference]: Without dead ends: 31 [2018-07-23 13:40:50,065 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=217, Invalid=595, Unknown=0, NotChecked=0, Total=812 [2018-07-23 13:40:50,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-07-23 13:40:50,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2018-07-23 13:40:50,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-07-23 13:40:50,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2018-07-23 13:40:50,071 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 29 [2018-07-23 13:40:50,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:40:50,072 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2018-07-23 13:40:50,072 INFO L472 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-07-23 13:40:50,072 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2018-07-23 13:40:50,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-07-23 13:40:50,073 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:40:50,073 INFO L357 BasicCegarLoop]: trace histogram [9, 9, 8, 1, 1, 1, 1] [2018-07-23 13:40:50,073 INFO L414 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:40:50,074 INFO L82 PathProgramCache]: Analyzing trace with hash 365245986, now seen corresponding path program 16 times [2018-07-23 13:40:50,074 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:40:50,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:40:50,119 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 45 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:50,120 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:40:50,120 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2018-07-23 13:40:50,120 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:40:50,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:50,121 INFO L185 omatonBuilderFactory]: Interpolants [2016#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 2004#true, 2005#false, 2006#(<= 0 ULTIMATE.start_main_~k~5), 2007#(<= 1 ULTIMATE.start_main_~k~5), 2008#(<= 2 ULTIMATE.start_main_~k~5), 2009#(<= 3 ULTIMATE.start_main_~k~5), 2010#(<= 4 ULTIMATE.start_main_~k~5), 2011#(<= 5 ULTIMATE.start_main_~k~5), 2012#(<= 6 ULTIMATE.start_main_~k~5), 2013#(<= 7 ULTIMATE.start_main_~k~5), 2014#(<= 8 ULTIMATE.start_main_~k~5), 2015#(<= 9 ULTIMATE.start_main_~k~5)] [2018-07-23 13:40:50,121 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 45 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:50,121 INFO L450 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-07-23 13:40:50,122 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-07-23 13:40:50,122 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2018-07-23 13:40:50,122 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 13 states. [2018-07-23 13:40:50,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:40:50,173 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2018-07-23 13:40:50,173 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-07-23 13:40:50,173 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 30 [2018-07-23 13:40:50,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:40:50,174 INFO L225 Difference]: With dead ends: 39 [2018-07-23 13:40:50,174 INFO L226 Difference]: Without dead ends: 37 [2018-07-23 13:40:50,175 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=198, Invalid=308, Unknown=0, NotChecked=0, Total=506 [2018-07-23 13:40:50,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-07-23 13:40:50,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 33. [2018-07-23 13:40:50,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-07-23 13:40:50,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2018-07-23 13:40:50,189 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 30 [2018-07-23 13:40:50,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:40:50,191 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2018-07-23 13:40:50,191 INFO L472 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-07-23 13:40:50,191 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2018-07-23 13:40:50,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-07-23 13:40:50,192 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:40:50,192 INFO L357 BasicCegarLoop]: trace histogram [10, 9, 9, 1, 1, 1, 1] [2018-07-23 13:40:50,192 INFO L414 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:40:50,192 INFO L82 PathProgramCache]: Analyzing trace with hash -1185859702, now seen corresponding path program 17 times [2018-07-23 13:40:50,193 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:40:50,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:40:50,263 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 90 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:50,264 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:40:50,264 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-07-23 13:40:50,264 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:40:50,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:50,265 INFO L185 omatonBuilderFactory]: Interpolants [2181#true, 2182#false, 2183#(<= ULTIMATE.start_main_~i~5 0), 2184#(<= ULTIMATE.start_main_~i~5 1), 2185#(<= ULTIMATE.start_main_~i~5 2), 2186#(<= ULTIMATE.start_main_~i~5 3), 2187#(<= ULTIMATE.start_main_~i~5 4), 2188#(<= ULTIMATE.start_main_~i~5 5), 2189#(<= ULTIMATE.start_main_~i~5 6), 2190#(<= ULTIMATE.start_main_~i~5 7), 2191#(<= ULTIMATE.start_main_~i~5 8), 2192#(<= ULTIMATE.start_main_~i~5 9), 2193#(<= ULTIMATE.start_main_~j~5 9), 2194#(<= ULTIMATE.start_main_~j~5 8), 2195#(<= ULTIMATE.start_main_~j~5 7), 2196#(<= ULTIMATE.start_main_~j~5 6), 2197#(<= ULTIMATE.start_main_~j~5 5), 2198#(<= ULTIMATE.start_main_~j~5 4), 2199#(<= ULTIMATE.start_main_~j~5 3), 2200#(<= ULTIMATE.start_main_~j~5 2), 2201#(<= ULTIMATE.start_main_~j~5 1), 2202#(<= ULTIMATE.start_main_~j~5 0)] [2018-07-23 13:40:50,265 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 90 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:50,266 INFO L450 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-07-23 13:40:50,266 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-07-23 13:40:50,266 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2018-07-23 13:40:50,267 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 22 states. [2018-07-23 13:40:50,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:40:50,369 INFO L93 Difference]: Finished difference Result 57 states and 59 transitions. [2018-07-23 13:40:50,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-07-23 13:40:50,369 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 32 [2018-07-23 13:40:50,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:40:50,370 INFO L225 Difference]: With dead ends: 57 [2018-07-23 13:40:50,370 INFO L226 Difference]: Without dead ends: 34 [2018-07-23 13:40:50,372 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=261, Invalid=731, Unknown=0, NotChecked=0, Total=992 [2018-07-23 13:40:50,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-07-23 13:40:50,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-07-23 13:40:50,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-07-23 13:40:50,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2018-07-23 13:40:50,382 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 32 [2018-07-23 13:40:50,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:40:50,383 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2018-07-23 13:40:50,383 INFO L472 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-07-23 13:40:50,383 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2018-07-23 13:40:50,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-07-23 13:40:50,384 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:40:50,384 INFO L357 BasicCegarLoop]: trace histogram [10, 10, 9, 1, 1, 1, 1] [2018-07-23 13:40:50,384 INFO L414 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:40:50,384 INFO L82 PathProgramCache]: Analyzing trace with hash 562724611, now seen corresponding path program 18 times [2018-07-23 13:40:50,384 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:40:50,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:40:50,436 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 55 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:50,437 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:40:50,437 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2018-07-23 13:40:50,437 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:40:50,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:50,438 INFO L185 omatonBuilderFactory]: Interpolants [2405#true, 2406#false, 2407#(<= 0 ULTIMATE.start_main_~k~5), 2408#(<= 1 ULTIMATE.start_main_~k~5), 2409#(<= 2 ULTIMATE.start_main_~k~5), 2410#(<= 3 ULTIMATE.start_main_~k~5), 2411#(<= 4 ULTIMATE.start_main_~k~5), 2412#(<= 5 ULTIMATE.start_main_~k~5), 2413#(<= 6 ULTIMATE.start_main_~k~5), 2414#(<= 7 ULTIMATE.start_main_~k~5), 2415#(<= 8 ULTIMATE.start_main_~k~5), 2416#(<= 9 ULTIMATE.start_main_~k~5), 2417#(<= 10 ULTIMATE.start_main_~k~5), 2418#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond)] [2018-07-23 13:40:50,439 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 55 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:50,439 INFO L450 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-07-23 13:40:50,439 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-07-23 13:40:50,440 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2018-07-23 13:40:50,440 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand 14 states. [2018-07-23 13:40:50,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:40:50,501 INFO L93 Difference]: Finished difference Result 42 states and 43 transitions. [2018-07-23 13:40:50,501 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-07-23 13:40:50,501 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 33 [2018-07-23 13:40:50,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:40:50,502 INFO L225 Difference]: With dead ends: 42 [2018-07-23 13:40:50,502 INFO L226 Difference]: Without dead ends: 40 [2018-07-23 13:40:50,503 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=234, Invalid=366, Unknown=0, NotChecked=0, Total=600 [2018-07-23 13:40:50,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-07-23 13:40:50,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 36. [2018-07-23 13:40:50,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-07-23 13:40:50,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2018-07-23 13:40:50,509 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 33 [2018-07-23 13:40:50,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:40:50,510 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2018-07-23 13:40:50,510 INFO L472 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-07-23 13:40:50,510 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2018-07-23 13:40:50,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-07-23 13:40:50,511 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:40:50,511 INFO L357 BasicCegarLoop]: trace histogram [11, 10, 10, 1, 1, 1, 1] [2018-07-23 13:40:50,511 INFO L414 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:40:50,511 INFO L82 PathProgramCache]: Analyzing trace with hash -387462101, now seen corresponding path program 19 times [2018-07-23 13:40:50,511 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:40:50,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:40:50,602 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 110 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:50,603 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:40:50,603 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-07-23 13:40:50,603 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:40:50,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:50,604 INFO L185 omatonBuilderFactory]: Interpolants [2597#true, 2598#false, 2599#(<= ULTIMATE.start_main_~i~5 0), 2600#(<= ULTIMATE.start_main_~i~5 1), 2601#(<= ULTIMATE.start_main_~i~5 2), 2602#(<= ULTIMATE.start_main_~i~5 3), 2603#(<= ULTIMATE.start_main_~i~5 4), 2604#(<= ULTIMATE.start_main_~i~5 5), 2605#(<= ULTIMATE.start_main_~i~5 6), 2606#(<= ULTIMATE.start_main_~i~5 7), 2607#(<= ULTIMATE.start_main_~i~5 8), 2608#(<= ULTIMATE.start_main_~i~5 9), 2609#(<= ULTIMATE.start_main_~i~5 10), 2610#(<= ULTIMATE.start_main_~j~5 10), 2611#(<= ULTIMATE.start_main_~j~5 9), 2612#(<= ULTIMATE.start_main_~j~5 8), 2613#(<= ULTIMATE.start_main_~j~5 7), 2614#(<= ULTIMATE.start_main_~j~5 6), 2615#(<= ULTIMATE.start_main_~j~5 5), 2616#(<= ULTIMATE.start_main_~j~5 4), 2617#(<= ULTIMATE.start_main_~j~5 3), 2618#(<= ULTIMATE.start_main_~j~5 2), 2619#(<= ULTIMATE.start_main_~j~5 1), 2620#(<= ULTIMATE.start_main_~j~5 0)] [2018-07-23 13:40:50,604 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 110 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:50,605 INFO L450 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-07-23 13:40:50,605 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-07-23 13:40:50,606 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2018-07-23 13:40:50,606 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand 24 states. [2018-07-23 13:40:50,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:40:50,714 INFO L93 Difference]: Finished difference Result 62 states and 64 transitions. [2018-07-23 13:40:50,715 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-07-23 13:40:50,715 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 35 [2018-07-23 13:40:50,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:40:50,716 INFO L225 Difference]: With dead ends: 62 [2018-07-23 13:40:50,716 INFO L226 Difference]: Without dead ends: 37 [2018-07-23 13:40:50,717 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=309, Invalid=881, Unknown=0, NotChecked=0, Total=1190 [2018-07-23 13:40:50,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-07-23 13:40:50,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-07-23 13:40:50,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-07-23 13:40:50,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 38 transitions. [2018-07-23 13:40:50,724 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 38 transitions. Word has length 35 [2018-07-23 13:40:50,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:40:50,725 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 38 transitions. [2018-07-23 13:40:50,725 INFO L472 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-07-23 13:40:50,725 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2018-07-23 13:40:50,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-07-23 13:40:50,726 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:40:50,726 INFO L357 BasicCegarLoop]: trace histogram [11, 11, 10, 1, 1, 1, 1] [2018-07-23 13:40:50,726 INFO L414 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:40:50,726 INFO L82 PathProgramCache]: Analyzing trace with hash -1970526702, now seen corresponding path program 20 times [2018-07-23 13:40:50,726 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:40:50,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:40:50,781 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 66 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:50,781 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:40:50,782 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-07-23 13:40:50,782 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:40:50,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:50,783 INFO L185 omatonBuilderFactory]: Interpolants [2848#(<= 5 ULTIMATE.start_main_~k~5), 2849#(<= 6 ULTIMATE.start_main_~k~5), 2850#(<= 7 ULTIMATE.start_main_~k~5), 2851#(<= 8 ULTIMATE.start_main_~k~5), 2852#(<= 9 ULTIMATE.start_main_~k~5), 2853#(<= 10 ULTIMATE.start_main_~k~5), 2854#(<= 11 ULTIMATE.start_main_~k~5), 2855#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 2841#true, 2842#false, 2843#(<= 0 ULTIMATE.start_main_~k~5), 2844#(<= 1 ULTIMATE.start_main_~k~5), 2845#(<= 2 ULTIMATE.start_main_~k~5), 2846#(<= 3 ULTIMATE.start_main_~k~5), 2847#(<= 4 ULTIMATE.start_main_~k~5)] [2018-07-23 13:40:50,783 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 66 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:50,784 INFO L450 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-07-23 13:40:50,784 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-07-23 13:40:50,784 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2018-07-23 13:40:50,785 INFO L87 Difference]: Start difference. First operand 37 states and 38 transitions. Second operand 15 states. [2018-07-23 13:40:50,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:40:50,849 INFO L93 Difference]: Finished difference Result 45 states and 46 transitions. [2018-07-23 13:40:50,849 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-07-23 13:40:50,849 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 36 [2018-07-23 13:40:50,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:40:50,850 INFO L225 Difference]: With dead ends: 45 [2018-07-23 13:40:50,850 INFO L226 Difference]: Without dead ends: 43 [2018-07-23 13:40:50,851 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=273, Invalid=429, Unknown=0, NotChecked=0, Total=702 [2018-07-23 13:40:50,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-07-23 13:40:50,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 39. [2018-07-23 13:40:50,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-07-23 13:40:50,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 40 transitions. [2018-07-23 13:40:50,858 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 40 transitions. Word has length 36 [2018-07-23 13:40:50,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:40:50,858 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 40 transitions. [2018-07-23 13:40:50,859 INFO L472 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-07-23 13:40:50,859 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions. [2018-07-23 13:40:50,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-07-23 13:40:50,859 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:40:50,860 INFO L357 BasicCegarLoop]: trace histogram [12, 11, 11, 1, 1, 1, 1] [2018-07-23 13:40:50,860 INFO L414 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:40:50,860 INFO L82 PathProgramCache]: Analyzing trace with hash 404482938, now seen corresponding path program 21 times [2018-07-23 13:40:50,860 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:40:50,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:40:50,946 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 132 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:50,946 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:40:50,946 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2018-07-23 13:40:50,947 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:40:50,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:50,948 INFO L185 omatonBuilderFactory]: Interpolants [3072#(<= ULTIMATE.start_main_~j~5 1), 3073#(<= ULTIMATE.start_main_~j~5 0), 3048#true, 3049#false, 3050#(<= ULTIMATE.start_main_~i~5 0), 3051#(<= ULTIMATE.start_main_~i~5 1), 3052#(<= ULTIMATE.start_main_~i~5 2), 3053#(<= ULTIMATE.start_main_~i~5 3), 3054#(<= ULTIMATE.start_main_~i~5 4), 3055#(<= ULTIMATE.start_main_~i~5 5), 3056#(<= ULTIMATE.start_main_~i~5 6), 3057#(<= ULTIMATE.start_main_~i~5 7), 3058#(<= ULTIMATE.start_main_~i~5 8), 3059#(<= ULTIMATE.start_main_~i~5 9), 3060#(<= ULTIMATE.start_main_~i~5 10), 3061#(<= ULTIMATE.start_main_~i~5 11), 3062#(<= ULTIMATE.start_main_~j~5 11), 3063#(<= ULTIMATE.start_main_~j~5 10), 3064#(<= ULTIMATE.start_main_~j~5 9), 3065#(<= ULTIMATE.start_main_~j~5 8), 3066#(<= ULTIMATE.start_main_~j~5 7), 3067#(<= ULTIMATE.start_main_~j~5 6), 3068#(<= ULTIMATE.start_main_~j~5 5), 3069#(<= ULTIMATE.start_main_~j~5 4), 3070#(<= ULTIMATE.start_main_~j~5 3), 3071#(<= ULTIMATE.start_main_~j~5 2)] [2018-07-23 13:40:50,948 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 132 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:50,948 INFO L450 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-07-23 13:40:50,949 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-07-23 13:40:50,949 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=469, Unknown=0, NotChecked=0, Total=650 [2018-07-23 13:40:50,951 INFO L87 Difference]: Start difference. First operand 39 states and 40 transitions. Second operand 26 states. [2018-07-23 13:40:51,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:40:51,076 INFO L93 Difference]: Finished difference Result 67 states and 69 transitions. [2018-07-23 13:40:51,076 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-07-23 13:40:51,076 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 38 [2018-07-23 13:40:51,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:40:51,077 INFO L225 Difference]: With dead ends: 67 [2018-07-23 13:40:51,077 INFO L226 Difference]: Without dead ends: 40 [2018-07-23 13:40:51,079 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=361, Invalid=1045, Unknown=0, NotChecked=0, Total=1406 [2018-07-23 13:40:51,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-07-23 13:40:51,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2018-07-23 13:40:51,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-07-23 13:40:51,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2018-07-23 13:40:51,093 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 38 [2018-07-23 13:40:51,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:40:51,094 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2018-07-23 13:40:51,094 INFO L472 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-07-23 13:40:51,094 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2018-07-23 13:40:51,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-07-23 13:40:51,095 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:40:51,095 INFO L357 BasicCegarLoop]: trace histogram [12, 12, 11, 1, 1, 1, 1] [2018-07-23 13:40:51,095 INFO L414 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:40:51,096 INFO L82 PathProgramCache]: Analyzing trace with hash -1932135373, now seen corresponding path program 22 times [2018-07-23 13:40:51,096 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:40:51,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:40:51,192 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 78 proven. 132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:51,192 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:40:51,192 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2018-07-23 13:40:51,193 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:40:51,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:51,193 INFO L185 omatonBuilderFactory]: Interpolants [3312#true, 3313#false, 3314#(<= 0 ULTIMATE.start_main_~k~5), 3315#(<= 1 ULTIMATE.start_main_~k~5), 3316#(<= 2 ULTIMATE.start_main_~k~5), 3317#(<= 3 ULTIMATE.start_main_~k~5), 3318#(<= 4 ULTIMATE.start_main_~k~5), 3319#(<= 5 ULTIMATE.start_main_~k~5), 3320#(<= 6 ULTIMATE.start_main_~k~5), 3321#(<= 7 ULTIMATE.start_main_~k~5), 3322#(<= 8 ULTIMATE.start_main_~k~5), 3323#(<= 9 ULTIMATE.start_main_~k~5), 3324#(<= 10 ULTIMATE.start_main_~k~5), 3325#(<= 11 ULTIMATE.start_main_~k~5), 3326#(<= 12 ULTIMATE.start_main_~k~5), 3327#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond)] [2018-07-23 13:40:51,194 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 78 proven. 132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:51,194 INFO L450 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-07-23 13:40:51,194 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-07-23 13:40:51,195 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=133, Unknown=0, NotChecked=0, Total=240 [2018-07-23 13:40:51,195 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand 16 states. [2018-07-23 13:40:51,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:40:51,271 INFO L93 Difference]: Finished difference Result 48 states and 49 transitions. [2018-07-23 13:40:51,271 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-07-23 13:40:51,271 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 39 [2018-07-23 13:40:51,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:40:51,272 INFO L225 Difference]: With dead ends: 48 [2018-07-23 13:40:51,272 INFO L226 Difference]: Without dead ends: 46 [2018-07-23 13:40:51,273 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=315, Invalid=497, Unknown=0, NotChecked=0, Total=812 [2018-07-23 13:40:51,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-07-23 13:40:51,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 42. [2018-07-23 13:40:51,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-07-23 13:40:51,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2018-07-23 13:40:51,282 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 39 [2018-07-23 13:40:51,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:40:51,282 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2018-07-23 13:40:51,282 INFO L472 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-07-23 13:40:51,282 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2018-07-23 13:40:51,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-07-23 13:40:51,283 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:40:51,283 INFO L357 BasicCegarLoop]: trace histogram [13, 12, 12, 1, 1, 1, 1] [2018-07-23 13:40:51,284 INFO L414 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:40:51,284 INFO L82 PathProgramCache]: Analyzing trace with hash -1356155557, now seen corresponding path program 23 times [2018-07-23 13:40:51,284 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:40:51,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:40:51,393 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 156 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:51,394 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:40:51,394 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-07-23 13:40:51,394 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:40:51,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:51,395 INFO L185 omatonBuilderFactory]: Interpolants [3534#true, 3535#false, 3536#(<= ULTIMATE.start_main_~i~5 0), 3537#(<= ULTIMATE.start_main_~i~5 1), 3538#(<= ULTIMATE.start_main_~i~5 2), 3539#(<= ULTIMATE.start_main_~i~5 3), 3540#(<= ULTIMATE.start_main_~i~5 4), 3541#(<= ULTIMATE.start_main_~i~5 5), 3542#(<= ULTIMATE.start_main_~i~5 6), 3543#(<= ULTIMATE.start_main_~i~5 7), 3544#(<= ULTIMATE.start_main_~i~5 8), 3545#(<= ULTIMATE.start_main_~i~5 9), 3546#(<= ULTIMATE.start_main_~i~5 10), 3547#(<= ULTIMATE.start_main_~i~5 11), 3548#(<= ULTIMATE.start_main_~i~5 12), 3549#(<= ULTIMATE.start_main_~j~5 12), 3550#(<= ULTIMATE.start_main_~j~5 11), 3551#(<= ULTIMATE.start_main_~j~5 10), 3552#(<= ULTIMATE.start_main_~j~5 9), 3553#(<= ULTIMATE.start_main_~j~5 8), 3554#(<= ULTIMATE.start_main_~j~5 7), 3555#(<= ULTIMATE.start_main_~j~5 6), 3556#(<= ULTIMATE.start_main_~j~5 5), 3557#(<= ULTIMATE.start_main_~j~5 4), 3558#(<= ULTIMATE.start_main_~j~5 3), 3559#(<= ULTIMATE.start_main_~j~5 2), 3560#(<= ULTIMATE.start_main_~j~5 1), 3561#(<= ULTIMATE.start_main_~j~5 0)] [2018-07-23 13:40:51,396 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 156 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:51,396 INFO L450 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-07-23 13:40:51,396 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-07-23 13:40:51,397 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=547, Unknown=0, NotChecked=0, Total=756 [2018-07-23 13:40:51,397 INFO L87 Difference]: Start difference. First operand 42 states and 43 transitions. Second operand 28 states. [2018-07-23 13:40:51,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:40:51,532 INFO L93 Difference]: Finished difference Result 72 states and 74 transitions. [2018-07-23 13:40:51,532 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-07-23 13:40:51,533 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 41 [2018-07-23 13:40:51,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:40:51,533 INFO L225 Difference]: With dead ends: 72 [2018-07-23 13:40:51,533 INFO L226 Difference]: Without dead ends: 43 [2018-07-23 13:40:51,535 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=417, Invalid=1223, Unknown=0, NotChecked=0, Total=1640 [2018-07-23 13:40:51,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-07-23 13:40:51,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2018-07-23 13:40:51,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-07-23 13:40:51,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 44 transitions. [2018-07-23 13:40:51,545 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 44 transitions. Word has length 41 [2018-07-23 13:40:51,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:40:51,545 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 44 transitions. [2018-07-23 13:40:51,545 INFO L472 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-07-23 13:40:51,546 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions. [2018-07-23 13:40:51,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-07-23 13:40:51,546 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:40:51,546 INFO L357 BasicCegarLoop]: trace histogram [13, 13, 12, 1, 1, 1, 1] [2018-07-23 13:40:51,547 INFO L414 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:40:51,547 INFO L82 PathProgramCache]: Analyzing trace with hash 1277675010, now seen corresponding path program 24 times [2018-07-23 13:40:51,547 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:40:51,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:40:51,618 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 91 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:51,619 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:40:51,620 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2018-07-23 13:40:51,620 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:40:51,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:51,620 INFO L185 omatonBuilderFactory]: Interpolants [3818#true, 3819#false, 3820#(<= 0 ULTIMATE.start_main_~k~5), 3821#(<= 1 ULTIMATE.start_main_~k~5), 3822#(<= 2 ULTIMATE.start_main_~k~5), 3823#(<= 3 ULTIMATE.start_main_~k~5), 3824#(<= 4 ULTIMATE.start_main_~k~5), 3825#(<= 5 ULTIMATE.start_main_~k~5), 3826#(<= 6 ULTIMATE.start_main_~k~5), 3827#(<= 7 ULTIMATE.start_main_~k~5), 3828#(<= 8 ULTIMATE.start_main_~k~5), 3829#(<= 9 ULTIMATE.start_main_~k~5), 3830#(<= 10 ULTIMATE.start_main_~k~5), 3831#(<= 11 ULTIMATE.start_main_~k~5), 3832#(<= 12 ULTIMATE.start_main_~k~5), 3833#(<= 13 ULTIMATE.start_main_~k~5), 3834#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond)] [2018-07-23 13:40:51,621 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 91 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:51,621 INFO L450 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-07-23 13:40:51,621 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-07-23 13:40:51,622 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=150, Unknown=0, NotChecked=0, Total=272 [2018-07-23 13:40:51,622 INFO L87 Difference]: Start difference. First operand 43 states and 44 transitions. Second operand 17 states. [2018-07-23 13:40:51,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:40:51,753 INFO L93 Difference]: Finished difference Result 51 states and 52 transitions. [2018-07-23 13:40:51,753 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-07-23 13:40:51,753 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 42 [2018-07-23 13:40:51,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:40:51,754 INFO L225 Difference]: With dead ends: 51 [2018-07-23 13:40:51,754 INFO L226 Difference]: Without dead ends: 49 [2018-07-23 13:40:51,755 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=360, Invalid=570, Unknown=0, NotChecked=0, Total=930 [2018-07-23 13:40:51,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-07-23 13:40:51,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 45. [2018-07-23 13:40:51,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-07-23 13:40:51,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2018-07-23 13:40:51,767 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 42 [2018-07-23 13:40:51,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:40:51,768 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions. [2018-07-23 13:40:51,768 INFO L472 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-07-23 13:40:51,768 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2018-07-23 13:40:51,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-07-23 13:40:51,769 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:40:51,769 INFO L357 BasicCegarLoop]: trace histogram [14, 13, 13, 1, 1, 1, 1] [2018-07-23 13:40:51,769 INFO L414 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:40:51,769 INFO L82 PathProgramCache]: Analyzing trace with hash -514896022, now seen corresponding path program 25 times [2018-07-23 13:40:51,769 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:40:51,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:40:51,880 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 182 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:51,880 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:40:51,881 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2018-07-23 13:40:51,881 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:40:51,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:51,881 INFO L185 omatonBuilderFactory]: Interpolants [4055#true, 4056#false, 4057#(<= ULTIMATE.start_main_~i~5 0), 4058#(<= ULTIMATE.start_main_~i~5 1), 4059#(<= ULTIMATE.start_main_~i~5 2), 4060#(<= ULTIMATE.start_main_~i~5 3), 4061#(<= ULTIMATE.start_main_~i~5 4), 4062#(<= ULTIMATE.start_main_~i~5 5), 4063#(<= ULTIMATE.start_main_~i~5 6), 4064#(<= ULTIMATE.start_main_~i~5 7), 4065#(<= ULTIMATE.start_main_~i~5 8), 4066#(<= ULTIMATE.start_main_~i~5 9), 4067#(<= ULTIMATE.start_main_~i~5 10), 4068#(<= ULTIMATE.start_main_~i~5 11), 4069#(<= ULTIMATE.start_main_~i~5 12), 4070#(<= ULTIMATE.start_main_~i~5 13), 4071#(<= ULTIMATE.start_main_~j~5 13), 4072#(<= ULTIMATE.start_main_~j~5 12), 4073#(<= ULTIMATE.start_main_~j~5 11), 4074#(<= ULTIMATE.start_main_~j~5 10), 4075#(<= ULTIMATE.start_main_~j~5 9), 4076#(<= ULTIMATE.start_main_~j~5 8), 4077#(<= ULTIMATE.start_main_~j~5 7), 4078#(<= ULTIMATE.start_main_~j~5 6), 4079#(<= ULTIMATE.start_main_~j~5 5), 4080#(<= ULTIMATE.start_main_~j~5 4), 4081#(<= ULTIMATE.start_main_~j~5 3), 4082#(<= ULTIMATE.start_main_~j~5 2), 4083#(<= ULTIMATE.start_main_~j~5 1), 4084#(<= ULTIMATE.start_main_~j~5 0)] [2018-07-23 13:40:51,882 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 182 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:51,882 INFO L450 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-07-23 13:40:51,884 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-07-23 13:40:51,885 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=239, Invalid=631, Unknown=0, NotChecked=0, Total=870 [2018-07-23 13:40:51,885 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand 30 states. [2018-07-23 13:40:52,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:40:52,026 INFO L93 Difference]: Finished difference Result 77 states and 79 transitions. [2018-07-23 13:40:52,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-07-23 13:40:52,026 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 44 [2018-07-23 13:40:52,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:40:52,027 INFO L225 Difference]: With dead ends: 77 [2018-07-23 13:40:52,027 INFO L226 Difference]: Without dead ends: 46 [2018-07-23 13:40:52,030 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=477, Invalid=1415, Unknown=0, NotChecked=0, Total=1892 [2018-07-23 13:40:52,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-07-23 13:40:52,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2018-07-23 13:40:52,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-07-23 13:40:52,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 47 transitions. [2018-07-23 13:40:52,036 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 47 transitions. Word has length 44 [2018-07-23 13:40:52,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:40:52,036 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 47 transitions. [2018-07-23 13:40:52,036 INFO L472 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-07-23 13:40:52,036 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 47 transitions. [2018-07-23 13:40:52,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-07-23 13:40:52,036 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:40:52,037 INFO L357 BasicCegarLoop]: trace histogram [14, 14, 13, 1, 1, 1, 1] [2018-07-23 13:40:52,037 INFO L414 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:40:52,037 INFO L82 PathProgramCache]: Analyzing trace with hash -826005149, now seen corresponding path program 26 times [2018-07-23 13:40:52,037 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:40:52,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:40:52,104 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 105 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:52,105 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:40:52,105 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2018-07-23 13:40:52,105 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:40:52,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:52,106 INFO L185 omatonBuilderFactory]: Interpolants [4359#true, 4360#false, 4361#(<= 0 ULTIMATE.start_main_~k~5), 4362#(<= 1 ULTIMATE.start_main_~k~5), 4363#(<= 2 ULTIMATE.start_main_~k~5), 4364#(<= 3 ULTIMATE.start_main_~k~5), 4365#(<= 4 ULTIMATE.start_main_~k~5), 4366#(<= 5 ULTIMATE.start_main_~k~5), 4367#(<= 6 ULTIMATE.start_main_~k~5), 4368#(<= 7 ULTIMATE.start_main_~k~5), 4369#(<= 8 ULTIMATE.start_main_~k~5), 4370#(<= 9 ULTIMATE.start_main_~k~5), 4371#(<= 10 ULTIMATE.start_main_~k~5), 4372#(<= 11 ULTIMATE.start_main_~k~5), 4373#(<= 12 ULTIMATE.start_main_~k~5), 4374#(<= 13 ULTIMATE.start_main_~k~5), 4375#(<= 14 ULTIMATE.start_main_~k~5), 4376#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond)] [2018-07-23 13:40:52,106 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 105 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:52,107 INFO L450 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-07-23 13:40:52,107 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-07-23 13:40:52,108 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=168, Unknown=0, NotChecked=0, Total=306 [2018-07-23 13:40:52,108 INFO L87 Difference]: Start difference. First operand 46 states and 47 transitions. Second operand 18 states. [2018-07-23 13:40:52,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:40:52,174 INFO L93 Difference]: Finished difference Result 54 states and 55 transitions. [2018-07-23 13:40:52,174 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-07-23 13:40:52,174 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 45 [2018-07-23 13:40:52,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:40:52,175 INFO L225 Difference]: With dead ends: 54 [2018-07-23 13:40:52,175 INFO L226 Difference]: Without dead ends: 52 [2018-07-23 13:40:52,176 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=408, Invalid=648, Unknown=0, NotChecked=0, Total=1056 [2018-07-23 13:40:52,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-07-23 13:40:52,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 48. [2018-07-23 13:40:52,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-07-23 13:40:52,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 49 transitions. [2018-07-23 13:40:52,181 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 49 transitions. Word has length 45 [2018-07-23 13:40:52,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:40:52,182 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 49 transitions. [2018-07-23 13:40:52,182 INFO L472 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-07-23 13:40:52,182 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 49 transitions. [2018-07-23 13:40:52,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-07-23 13:40:52,182 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:40:52,182 INFO L357 BasicCegarLoop]: trace histogram [15, 14, 14, 1, 1, 1, 1] [2018-07-23 13:40:52,183 INFO L414 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:40:52,183 INFO L82 PathProgramCache]: Analyzing trace with hash 778067595, now seen corresponding path program 27 times [2018-07-23 13:40:52,183 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:40:52,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:40:52,295 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 210 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:52,296 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:40:52,296 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2018-07-23 13:40:52,296 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:40:52,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:52,297 INFO L185 omatonBuilderFactory]: Interpolants [4611#true, 4612#false, 4613#(<= ULTIMATE.start_main_~i~5 0), 4614#(<= ULTIMATE.start_main_~i~5 1), 4615#(<= ULTIMATE.start_main_~i~5 2), 4616#(<= ULTIMATE.start_main_~i~5 3), 4617#(<= ULTIMATE.start_main_~i~5 4), 4618#(<= ULTIMATE.start_main_~i~5 5), 4619#(<= ULTIMATE.start_main_~i~5 6), 4620#(<= ULTIMATE.start_main_~i~5 7), 4621#(<= ULTIMATE.start_main_~i~5 8), 4622#(<= ULTIMATE.start_main_~i~5 9), 4623#(<= ULTIMATE.start_main_~i~5 10), 4624#(<= ULTIMATE.start_main_~i~5 11), 4625#(<= ULTIMATE.start_main_~i~5 12), 4626#(<= ULTIMATE.start_main_~i~5 13), 4627#(<= ULTIMATE.start_main_~i~5 14), 4628#(<= ULTIMATE.start_main_~j~5 14), 4629#(<= ULTIMATE.start_main_~j~5 13), 4630#(<= ULTIMATE.start_main_~j~5 12), 4631#(<= ULTIMATE.start_main_~j~5 11), 4632#(<= ULTIMATE.start_main_~j~5 10), 4633#(<= ULTIMATE.start_main_~j~5 9), 4634#(<= ULTIMATE.start_main_~j~5 8), 4635#(<= ULTIMATE.start_main_~j~5 7), 4636#(<= ULTIMATE.start_main_~j~5 6), 4637#(<= ULTIMATE.start_main_~j~5 5), 4638#(<= ULTIMATE.start_main_~j~5 4), 4639#(<= ULTIMATE.start_main_~j~5 3), 4640#(<= ULTIMATE.start_main_~j~5 2), 4641#(<= ULTIMATE.start_main_~j~5 1), 4642#(<= ULTIMATE.start_main_~j~5 0)] [2018-07-23 13:40:52,297 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 210 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:52,297 INFO L450 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-07-23 13:40:52,298 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-07-23 13:40:52,298 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=271, Invalid=721, Unknown=0, NotChecked=0, Total=992 [2018-07-23 13:40:52,298 INFO L87 Difference]: Start difference. First operand 48 states and 49 transitions. Second operand 32 states. [2018-07-23 13:40:52,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:40:52,444 INFO L93 Difference]: Finished difference Result 82 states and 84 transitions. [2018-07-23 13:40:52,444 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-07-23 13:40:52,444 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 47 [2018-07-23 13:40:52,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:40:52,445 INFO L225 Difference]: With dead ends: 82 [2018-07-23 13:40:52,445 INFO L226 Difference]: Without dead ends: 49 [2018-07-23 13:40:52,446 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=541, Invalid=1621, Unknown=0, NotChecked=0, Total=2162 [2018-07-23 13:40:52,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-07-23 13:40:52,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2018-07-23 13:40:52,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-07-23 13:40:52,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 50 transitions. [2018-07-23 13:40:52,454 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 50 transitions. Word has length 47 [2018-07-23 13:40:52,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:40:52,455 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 50 transitions. [2018-07-23 13:40:52,455 INFO L472 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-07-23 13:40:52,455 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 50 transitions. [2018-07-23 13:40:52,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-07-23 13:40:52,455 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:40:52,455 INFO L357 BasicCegarLoop]: trace histogram [15, 15, 14, 1, 1, 1, 1] [2018-07-23 13:40:52,456 INFO L414 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:40:52,456 INFO L82 PathProgramCache]: Analyzing trace with hash 1065489906, now seen corresponding path program 28 times [2018-07-23 13:40:52,456 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:40:52,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:40:52,527 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 120 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:52,528 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:40:52,528 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2018-07-23 13:40:52,528 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:40:52,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:52,529 INFO L185 omatonBuilderFactory]: Interpolants [4935#true, 4936#false, 4937#(<= 0 ULTIMATE.start_main_~k~5), 4938#(<= 1 ULTIMATE.start_main_~k~5), 4939#(<= 2 ULTIMATE.start_main_~k~5), 4940#(<= 3 ULTIMATE.start_main_~k~5), 4941#(<= 4 ULTIMATE.start_main_~k~5), 4942#(<= 5 ULTIMATE.start_main_~k~5), 4943#(<= 6 ULTIMATE.start_main_~k~5), 4944#(<= 7 ULTIMATE.start_main_~k~5), 4945#(<= 8 ULTIMATE.start_main_~k~5), 4946#(<= 9 ULTIMATE.start_main_~k~5), 4947#(<= 10 ULTIMATE.start_main_~k~5), 4948#(<= 11 ULTIMATE.start_main_~k~5), 4949#(<= 12 ULTIMATE.start_main_~k~5), 4950#(<= 13 ULTIMATE.start_main_~k~5), 4951#(<= 14 ULTIMATE.start_main_~k~5), 4952#(<= 15 ULTIMATE.start_main_~k~5), 4953#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond)] [2018-07-23 13:40:52,529 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 120 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:52,530 INFO L450 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-07-23 13:40:52,530 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-07-23 13:40:52,530 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=187, Unknown=0, NotChecked=0, Total=342 [2018-07-23 13:40:52,530 INFO L87 Difference]: Start difference. First operand 49 states and 50 transitions. Second operand 19 states. [2018-07-23 13:40:52,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:40:52,607 INFO L93 Difference]: Finished difference Result 57 states and 58 transitions. [2018-07-23 13:40:52,608 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-07-23 13:40:52,608 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 48 [2018-07-23 13:40:52,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:40:52,609 INFO L225 Difference]: With dead ends: 57 [2018-07-23 13:40:52,609 INFO L226 Difference]: Without dead ends: 55 [2018-07-23 13:40:52,610 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=459, Invalid=731, Unknown=0, NotChecked=0, Total=1190 [2018-07-23 13:40:52,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-07-23 13:40:52,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 51. [2018-07-23 13:40:52,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-07-23 13:40:52,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 52 transitions. [2018-07-23 13:40:52,619 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 52 transitions. Word has length 48 [2018-07-23 13:40:52,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:40:52,619 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 52 transitions. [2018-07-23 13:40:52,620 INFO L472 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-07-23 13:40:52,620 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 52 transitions. [2018-07-23 13:40:52,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-07-23 13:40:52,620 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:40:52,620 INFO L357 BasicCegarLoop]: trace histogram [16, 15, 15, 1, 1, 1, 1] [2018-07-23 13:40:52,620 INFO L414 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:40:52,621 INFO L82 PathProgramCache]: Analyzing trace with hash 1733649242, now seen corresponding path program 29 times [2018-07-23 13:40:52,621 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:40:52,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:40:52,729 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 240 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:52,729 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:40:52,729 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2018-07-23 13:40:52,729 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:40:52,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:52,730 INFO L185 omatonBuilderFactory]: Interpolants [5202#true, 5203#false, 5204#(<= ULTIMATE.start_main_~i~5 0), 5205#(<= ULTIMATE.start_main_~i~5 1), 5206#(<= ULTIMATE.start_main_~i~5 2), 5207#(<= ULTIMATE.start_main_~i~5 3), 5208#(<= ULTIMATE.start_main_~i~5 4), 5209#(<= ULTIMATE.start_main_~i~5 5), 5210#(<= ULTIMATE.start_main_~i~5 6), 5211#(<= ULTIMATE.start_main_~i~5 7), 5212#(<= ULTIMATE.start_main_~i~5 8), 5213#(<= ULTIMATE.start_main_~i~5 9), 5214#(<= ULTIMATE.start_main_~i~5 10), 5215#(<= ULTIMATE.start_main_~i~5 11), 5216#(<= ULTIMATE.start_main_~i~5 12), 5217#(<= ULTIMATE.start_main_~i~5 13), 5218#(<= ULTIMATE.start_main_~i~5 14), 5219#(<= ULTIMATE.start_main_~i~5 15), 5220#(<= ULTIMATE.start_main_~j~5 15), 5221#(<= ULTIMATE.start_main_~j~5 14), 5222#(<= ULTIMATE.start_main_~j~5 13), 5223#(<= ULTIMATE.start_main_~j~5 12), 5224#(<= ULTIMATE.start_main_~j~5 11), 5225#(<= ULTIMATE.start_main_~j~5 10), 5226#(<= ULTIMATE.start_main_~j~5 9), 5227#(<= ULTIMATE.start_main_~j~5 8), 5228#(<= ULTIMATE.start_main_~j~5 7), 5229#(<= ULTIMATE.start_main_~j~5 6), 5230#(<= ULTIMATE.start_main_~j~5 5), 5231#(<= ULTIMATE.start_main_~j~5 4), 5232#(<= ULTIMATE.start_main_~j~5 3), 5233#(<= ULTIMATE.start_main_~j~5 2), 5234#(<= ULTIMATE.start_main_~j~5 1), 5235#(<= ULTIMATE.start_main_~j~5 0)] [2018-07-23 13:40:52,731 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 240 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:52,731 INFO L450 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-07-23 13:40:52,731 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-07-23 13:40:52,732 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=305, Invalid=817, Unknown=0, NotChecked=0, Total=1122 [2018-07-23 13:40:52,732 INFO L87 Difference]: Start difference. First operand 51 states and 52 transitions. Second operand 34 states. [2018-07-23 13:40:52,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:40:52,895 INFO L93 Difference]: Finished difference Result 87 states and 89 transitions. [2018-07-23 13:40:52,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-07-23 13:40:52,895 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 50 [2018-07-23 13:40:52,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:40:52,896 INFO L225 Difference]: With dead ends: 87 [2018-07-23 13:40:52,896 INFO L226 Difference]: Without dead ends: 52 [2018-07-23 13:40:52,897 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 345 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=609, Invalid=1841, Unknown=0, NotChecked=0, Total=2450 [2018-07-23 13:40:52,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-07-23 13:40:52,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2018-07-23 13:40:52,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-07-23 13:40:52,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 53 transitions. [2018-07-23 13:40:52,905 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 53 transitions. Word has length 50 [2018-07-23 13:40:52,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:40:52,905 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 53 transitions. [2018-07-23 13:40:52,905 INFO L472 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-07-23 13:40:52,905 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 53 transitions. [2018-07-23 13:40:52,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-07-23 13:40:52,906 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:40:52,906 INFO L357 BasicCegarLoop]: trace histogram [16, 16, 15, 1, 1, 1, 1] [2018-07-23 13:40:52,906 INFO L414 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:40:52,906 INFO L82 PathProgramCache]: Analyzing trace with hash 166928019, now seen corresponding path program 30 times [2018-07-23 13:40:52,906 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:40:52,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:40:52,978 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 136 proven. 240 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:52,978 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:40:52,979 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2018-07-23 13:40:52,979 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:40:52,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:52,979 INFO L185 omatonBuilderFactory]: Interpolants [5546#true, 5547#false, 5548#(<= 0 ULTIMATE.start_main_~k~5), 5549#(<= 1 ULTIMATE.start_main_~k~5), 5550#(<= 2 ULTIMATE.start_main_~k~5), 5551#(<= 3 ULTIMATE.start_main_~k~5), 5552#(<= 4 ULTIMATE.start_main_~k~5), 5553#(<= 5 ULTIMATE.start_main_~k~5), 5554#(<= 6 ULTIMATE.start_main_~k~5), 5555#(<= 7 ULTIMATE.start_main_~k~5), 5556#(<= 8 ULTIMATE.start_main_~k~5), 5557#(<= 9 ULTIMATE.start_main_~k~5), 5558#(<= 10 ULTIMATE.start_main_~k~5), 5559#(<= 11 ULTIMATE.start_main_~k~5), 5560#(<= 12 ULTIMATE.start_main_~k~5), 5561#(<= 13 ULTIMATE.start_main_~k~5), 5562#(<= 14 ULTIMATE.start_main_~k~5), 5563#(<= 15 ULTIMATE.start_main_~k~5), 5564#(<= 16 ULTIMATE.start_main_~k~5), 5565#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond)] [2018-07-23 13:40:52,980 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 136 proven. 240 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:52,980 INFO L450 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-07-23 13:40:52,980 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-07-23 13:40:52,981 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=207, Unknown=0, NotChecked=0, Total=380 [2018-07-23 13:40:52,981 INFO L87 Difference]: Start difference. First operand 52 states and 53 transitions. Second operand 20 states. [2018-07-23 13:40:53,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:40:53,062 INFO L93 Difference]: Finished difference Result 60 states and 61 transitions. [2018-07-23 13:40:53,062 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-07-23 13:40:53,062 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 51 [2018-07-23 13:40:53,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:40:53,063 INFO L225 Difference]: With dead ends: 60 [2018-07-23 13:40:53,063 INFO L226 Difference]: Without dead ends: 58 [2018-07-23 13:40:53,064 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=513, Invalid=819, Unknown=0, NotChecked=0, Total=1332 [2018-07-23 13:40:53,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-07-23 13:40:53,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 54. [2018-07-23 13:40:53,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-07-23 13:40:53,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 55 transitions. [2018-07-23 13:40:53,072 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 55 transitions. Word has length 51 [2018-07-23 13:40:53,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:40:53,072 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 55 transitions. [2018-07-23 13:40:53,072 INFO L472 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-07-23 13:40:53,072 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 55 transitions. [2018-07-23 13:40:53,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-07-23 13:40:53,073 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:40:53,073 INFO L357 BasicCegarLoop]: trace histogram [17, 16, 16, 1, 1, 1, 1] [2018-07-23 13:40:53,073 INFO L414 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:40:53,073 INFO L82 PathProgramCache]: Analyzing trace with hash 1504102331, now seen corresponding path program 31 times [2018-07-23 13:40:53,073 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:40:53,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:40:53,197 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 272 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:53,197 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:40:53,197 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2018-07-23 13:40:53,198 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:40:53,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:53,198 INFO L185 omatonBuilderFactory]: Interpolants [5828#true, 5829#false, 5830#(<= ULTIMATE.start_main_~i~5 0), 5831#(<= ULTIMATE.start_main_~i~5 1), 5832#(<= ULTIMATE.start_main_~i~5 2), 5833#(<= ULTIMATE.start_main_~i~5 3), 5834#(<= ULTIMATE.start_main_~i~5 4), 5835#(<= ULTIMATE.start_main_~i~5 5), 5836#(<= ULTIMATE.start_main_~i~5 6), 5837#(<= ULTIMATE.start_main_~i~5 7), 5838#(<= ULTIMATE.start_main_~i~5 8), 5839#(<= ULTIMATE.start_main_~i~5 9), 5840#(<= ULTIMATE.start_main_~i~5 10), 5841#(<= ULTIMATE.start_main_~i~5 11), 5842#(<= ULTIMATE.start_main_~i~5 12), 5843#(<= ULTIMATE.start_main_~i~5 13), 5844#(<= ULTIMATE.start_main_~i~5 14), 5845#(<= ULTIMATE.start_main_~i~5 15), 5846#(<= ULTIMATE.start_main_~i~5 16), 5847#(<= ULTIMATE.start_main_~j~5 16), 5848#(<= ULTIMATE.start_main_~j~5 15), 5849#(<= ULTIMATE.start_main_~j~5 14), 5850#(<= ULTIMATE.start_main_~j~5 13), 5851#(<= ULTIMATE.start_main_~j~5 12), 5852#(<= ULTIMATE.start_main_~j~5 11), 5853#(<= ULTIMATE.start_main_~j~5 10), 5854#(<= ULTIMATE.start_main_~j~5 9), 5855#(<= ULTIMATE.start_main_~j~5 8), 5856#(<= ULTIMATE.start_main_~j~5 7), 5857#(<= ULTIMATE.start_main_~j~5 6), 5858#(<= ULTIMATE.start_main_~j~5 5), 5859#(<= ULTIMATE.start_main_~j~5 4), 5860#(<= ULTIMATE.start_main_~j~5 3), 5861#(<= ULTIMATE.start_main_~j~5 2), 5862#(<= ULTIMATE.start_main_~j~5 1), 5863#(<= ULTIMATE.start_main_~j~5 0)] [2018-07-23 13:40:53,199 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 272 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:53,199 INFO L450 AbstractCegarLoop]: Interpolant automaton has 36 states [2018-07-23 13:40:53,199 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2018-07-23 13:40:53,200 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=341, Invalid=919, Unknown=0, NotChecked=0, Total=1260 [2018-07-23 13:40:53,200 INFO L87 Difference]: Start difference. First operand 54 states and 55 transitions. Second operand 36 states. [2018-07-23 13:40:53,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:40:53,375 INFO L93 Difference]: Finished difference Result 92 states and 94 transitions. [2018-07-23 13:40:53,375 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-07-23 13:40:53,375 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 53 [2018-07-23 13:40:53,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:40:53,376 INFO L225 Difference]: With dead ends: 92 [2018-07-23 13:40:53,376 INFO L226 Difference]: Without dead ends: 55 [2018-07-23 13:40:53,378 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=681, Invalid=2075, Unknown=0, NotChecked=0, Total=2756 [2018-07-23 13:40:53,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-07-23 13:40:53,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2018-07-23 13:40:53,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-07-23 13:40:53,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 56 transitions. [2018-07-23 13:40:53,386 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 56 transitions. Word has length 53 [2018-07-23 13:40:53,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:40:53,387 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 56 transitions. [2018-07-23 13:40:53,387 INFO L472 AbstractCegarLoop]: Interpolant automaton has 36 states. [2018-07-23 13:40:53,387 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 56 transitions. [2018-07-23 13:40:53,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-07-23 13:40:53,387 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:40:53,388 INFO L357 BasicCegarLoop]: trace histogram [17, 17, 16, 1, 1, 1, 1] [2018-07-23 13:40:53,388 INFO L414 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:40:53,388 INFO L82 PathProgramCache]: Analyzing trace with hash 721753570, now seen corresponding path program 32 times [2018-07-23 13:40:53,389 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:40:53,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:40:53,462 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 153 proven. 272 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:53,463 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:40:53,463 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-07-23 13:40:53,463 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:40:53,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:53,463 INFO L185 omatonBuilderFactory]: Interpolants [6208#(<= 14 ULTIMATE.start_main_~k~5), 6209#(<= 15 ULTIMATE.start_main_~k~5), 6210#(<= 16 ULTIMATE.start_main_~k~5), 6211#(<= 17 ULTIMATE.start_main_~k~5), 6212#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 6192#true, 6193#false, 6194#(<= 0 ULTIMATE.start_main_~k~5), 6195#(<= 1 ULTIMATE.start_main_~k~5), 6196#(<= 2 ULTIMATE.start_main_~k~5), 6197#(<= 3 ULTIMATE.start_main_~k~5), 6198#(<= 4 ULTIMATE.start_main_~k~5), 6199#(<= 5 ULTIMATE.start_main_~k~5), 6200#(<= 6 ULTIMATE.start_main_~k~5), 6201#(<= 7 ULTIMATE.start_main_~k~5), 6202#(<= 8 ULTIMATE.start_main_~k~5), 6203#(<= 9 ULTIMATE.start_main_~k~5), 6204#(<= 10 ULTIMATE.start_main_~k~5), 6205#(<= 11 ULTIMATE.start_main_~k~5), 6206#(<= 12 ULTIMATE.start_main_~k~5), 6207#(<= 13 ULTIMATE.start_main_~k~5)] [2018-07-23 13:40:53,464 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 153 proven. 272 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:53,464 INFO L450 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-07-23 13:40:53,464 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-07-23 13:40:53,465 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=228, Unknown=0, NotChecked=0, Total=420 [2018-07-23 13:40:53,465 INFO L87 Difference]: Start difference. First operand 55 states and 56 transitions. Second operand 21 states. [2018-07-23 13:40:53,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:40:53,546 INFO L93 Difference]: Finished difference Result 63 states and 64 transitions. [2018-07-23 13:40:53,546 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-07-23 13:40:53,547 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 54 [2018-07-23 13:40:53,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:40:53,547 INFO L225 Difference]: With dead ends: 63 [2018-07-23 13:40:53,547 INFO L226 Difference]: Without dead ends: 61 [2018-07-23 13:40:53,548 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=570, Invalid=912, Unknown=0, NotChecked=0, Total=1482 [2018-07-23 13:40:53,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-07-23 13:40:53,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 57. [2018-07-23 13:40:53,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-07-23 13:40:53,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 58 transitions. [2018-07-23 13:40:53,555 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 58 transitions. Word has length 54 [2018-07-23 13:40:53,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:40:53,556 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 58 transitions. [2018-07-23 13:40:53,556 INFO L472 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-07-23 13:40:53,556 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 58 transitions. [2018-07-23 13:40:53,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-07-23 13:40:53,556 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:40:53,557 INFO L357 BasicCegarLoop]: trace histogram [18, 17, 17, 1, 1, 1, 1] [2018-07-23 13:40:53,557 INFO L414 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:40:53,557 INFO L82 PathProgramCache]: Analyzing trace with hash 2115512138, now seen corresponding path program 33 times [2018-07-23 13:40:53,557 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:40:53,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:40:53,673 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 306 proven. 153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:53,674 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:40:53,674 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [37] total 37 [2018-07-23 13:40:53,674 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:40:53,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:53,675 INFO L185 omatonBuilderFactory]: Interpolants [6489#true, 6490#false, 6491#(<= ULTIMATE.start_main_~i~5 0), 6492#(<= ULTIMATE.start_main_~i~5 1), 6493#(<= ULTIMATE.start_main_~i~5 2), 6494#(<= ULTIMATE.start_main_~i~5 3), 6495#(<= ULTIMATE.start_main_~i~5 4), 6496#(<= ULTIMATE.start_main_~i~5 5), 6497#(<= ULTIMATE.start_main_~i~5 6), 6498#(<= ULTIMATE.start_main_~i~5 7), 6499#(<= ULTIMATE.start_main_~i~5 8), 6500#(<= ULTIMATE.start_main_~i~5 9), 6501#(<= ULTIMATE.start_main_~i~5 10), 6502#(<= ULTIMATE.start_main_~i~5 11), 6503#(<= ULTIMATE.start_main_~i~5 12), 6504#(<= ULTIMATE.start_main_~i~5 13), 6505#(<= ULTIMATE.start_main_~i~5 14), 6506#(<= ULTIMATE.start_main_~i~5 15), 6507#(<= ULTIMATE.start_main_~i~5 16), 6508#(<= ULTIMATE.start_main_~i~5 17), 6509#(<= ULTIMATE.start_main_~j~5 17), 6510#(<= ULTIMATE.start_main_~j~5 16), 6511#(<= ULTIMATE.start_main_~j~5 15), 6512#(<= ULTIMATE.start_main_~j~5 14), 6513#(<= ULTIMATE.start_main_~j~5 13), 6514#(<= ULTIMATE.start_main_~j~5 12), 6515#(<= ULTIMATE.start_main_~j~5 11), 6516#(<= ULTIMATE.start_main_~j~5 10), 6517#(<= ULTIMATE.start_main_~j~5 9), 6518#(<= ULTIMATE.start_main_~j~5 8), 6519#(<= ULTIMATE.start_main_~j~5 7), 6520#(<= ULTIMATE.start_main_~j~5 6), 6521#(<= ULTIMATE.start_main_~j~5 5), 6522#(<= ULTIMATE.start_main_~j~5 4), 6523#(<= ULTIMATE.start_main_~j~5 3), 6524#(<= ULTIMATE.start_main_~j~5 2), 6525#(<= ULTIMATE.start_main_~j~5 1), 6526#(<= ULTIMATE.start_main_~j~5 0)] [2018-07-23 13:40:53,675 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 306 proven. 153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:53,676 INFO L450 AbstractCegarLoop]: Interpolant automaton has 38 states [2018-07-23 13:40:53,677 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2018-07-23 13:40:53,680 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=379, Invalid=1027, Unknown=0, NotChecked=0, Total=1406 [2018-07-23 13:40:53,681 INFO L87 Difference]: Start difference. First operand 57 states and 58 transitions. Second operand 38 states. [2018-07-23 13:40:53,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:40:53,865 INFO L93 Difference]: Finished difference Result 97 states and 99 transitions. [2018-07-23 13:40:53,865 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-07-23 13:40:53,866 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 56 [2018-07-23 13:40:53,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:40:53,866 INFO L225 Difference]: With dead ends: 97 [2018-07-23 13:40:53,866 INFO L226 Difference]: Without dead ends: 58 [2018-07-23 13:40:53,868 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=757, Invalid=2323, Unknown=0, NotChecked=0, Total=3080 [2018-07-23 13:40:53,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-07-23 13:40:53,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2018-07-23 13:40:53,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-07-23 13:40:53,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 59 transitions. [2018-07-23 13:40:53,875 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 59 transitions. Word has length 56 [2018-07-23 13:40:53,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:40:53,876 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 59 transitions. [2018-07-23 13:40:53,876 INFO L472 AbstractCegarLoop]: Interpolant automaton has 38 states. [2018-07-23 13:40:53,876 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 59 transitions. [2018-07-23 13:40:53,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-07-23 13:40:53,877 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:40:53,877 INFO L357 BasicCegarLoop]: trace histogram [18, 18, 17, 1, 1, 1, 1] [2018-07-23 13:40:53,877 INFO L414 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:40:53,877 INFO L82 PathProgramCache]: Analyzing trace with hash -343878717, now seen corresponding path program 34 times [2018-07-23 13:40:53,877 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:40:53,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:40:53,952 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 171 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:53,952 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:40:53,953 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-07-23 13:40:53,953 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:40:53,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:53,953 INFO L185 omatonBuilderFactory]: Interpolants [6880#(<= 5 ULTIMATE.start_main_~k~5), 6881#(<= 6 ULTIMATE.start_main_~k~5), 6882#(<= 7 ULTIMATE.start_main_~k~5), 6883#(<= 8 ULTIMATE.start_main_~k~5), 6884#(<= 9 ULTIMATE.start_main_~k~5), 6885#(<= 10 ULTIMATE.start_main_~k~5), 6886#(<= 11 ULTIMATE.start_main_~k~5), 6887#(<= 12 ULTIMATE.start_main_~k~5), 6888#(<= 13 ULTIMATE.start_main_~k~5), 6889#(<= 14 ULTIMATE.start_main_~k~5), 6890#(<= 15 ULTIMATE.start_main_~k~5), 6891#(<= 16 ULTIMATE.start_main_~k~5), 6892#(<= 17 ULTIMATE.start_main_~k~5), 6893#(<= 18 ULTIMATE.start_main_~k~5), 6894#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 6873#true, 6874#false, 6875#(<= 0 ULTIMATE.start_main_~k~5), 6876#(<= 1 ULTIMATE.start_main_~k~5), 6877#(<= 2 ULTIMATE.start_main_~k~5), 6878#(<= 3 ULTIMATE.start_main_~k~5), 6879#(<= 4 ULTIMATE.start_main_~k~5)] [2018-07-23 13:40:53,953 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 171 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:53,954 INFO L450 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-07-23 13:40:53,954 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-07-23 13:40:53,954 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=250, Unknown=0, NotChecked=0, Total=462 [2018-07-23 13:40:53,955 INFO L87 Difference]: Start difference. First operand 58 states and 59 transitions. Second operand 22 states. [2018-07-23 13:40:54,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:40:54,037 INFO L93 Difference]: Finished difference Result 66 states and 67 transitions. [2018-07-23 13:40:54,037 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2018-07-23 13:40:54,037 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 57 [2018-07-23 13:40:54,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:40:54,038 INFO L225 Difference]: With dead ends: 66 [2018-07-23 13:40:54,038 INFO L226 Difference]: Without dead ends: 64 [2018-07-23 13:40:54,039 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 342 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=630, Invalid=1010, Unknown=0, NotChecked=0, Total=1640 [2018-07-23 13:40:54,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-07-23 13:40:54,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 60. [2018-07-23 13:40:54,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-07-23 13:40:54,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 61 transitions. [2018-07-23 13:40:54,047 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 61 transitions. Word has length 57 [2018-07-23 13:40:54,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:40:54,047 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 61 transitions. [2018-07-23 13:40:54,047 INFO L472 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-07-23 13:40:54,048 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 61 transitions. [2018-07-23 13:40:54,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-07-23 13:40:54,048 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:40:54,048 INFO L357 BasicCegarLoop]: trace histogram [19, 18, 18, 1, 1, 1, 1] [2018-07-23 13:40:54,048 INFO L414 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:40:54,049 INFO L82 PathProgramCache]: Analyzing trace with hash 245100779, now seen corresponding path program 35 times [2018-07-23 13:40:54,049 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:40:54,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:40:54,205 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 342 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:54,206 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:40:54,206 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [39] total 39 [2018-07-23 13:40:54,206 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:40:54,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:54,207 INFO L185 omatonBuilderFactory]: Interpolants [7185#true, 7186#false, 7187#(<= ULTIMATE.start_main_~i~5 0), 7188#(<= ULTIMATE.start_main_~i~5 1), 7189#(<= ULTIMATE.start_main_~i~5 2), 7190#(<= ULTIMATE.start_main_~i~5 3), 7191#(<= ULTIMATE.start_main_~i~5 4), 7192#(<= ULTIMATE.start_main_~i~5 5), 7193#(<= ULTIMATE.start_main_~i~5 6), 7194#(<= ULTIMATE.start_main_~i~5 7), 7195#(<= ULTIMATE.start_main_~i~5 8), 7196#(<= ULTIMATE.start_main_~i~5 9), 7197#(<= ULTIMATE.start_main_~i~5 10), 7198#(<= ULTIMATE.start_main_~i~5 11), 7199#(<= ULTIMATE.start_main_~i~5 12), 7200#(<= ULTIMATE.start_main_~i~5 13), 7201#(<= ULTIMATE.start_main_~i~5 14), 7202#(<= ULTIMATE.start_main_~i~5 15), 7203#(<= ULTIMATE.start_main_~i~5 16), 7204#(<= ULTIMATE.start_main_~i~5 17), 7205#(<= ULTIMATE.start_main_~i~5 18), 7206#(<= ULTIMATE.start_main_~j~5 18), 7207#(<= ULTIMATE.start_main_~j~5 17), 7208#(<= ULTIMATE.start_main_~j~5 16), 7209#(<= ULTIMATE.start_main_~j~5 15), 7210#(<= ULTIMATE.start_main_~j~5 14), 7211#(<= ULTIMATE.start_main_~j~5 13), 7212#(<= ULTIMATE.start_main_~j~5 12), 7213#(<= ULTIMATE.start_main_~j~5 11), 7214#(<= ULTIMATE.start_main_~j~5 10), 7215#(<= ULTIMATE.start_main_~j~5 9), 7216#(<= ULTIMATE.start_main_~j~5 8), 7217#(<= ULTIMATE.start_main_~j~5 7), 7218#(<= ULTIMATE.start_main_~j~5 6), 7219#(<= ULTIMATE.start_main_~j~5 5), 7220#(<= ULTIMATE.start_main_~j~5 4), 7221#(<= ULTIMATE.start_main_~j~5 3), 7222#(<= ULTIMATE.start_main_~j~5 2), 7223#(<= ULTIMATE.start_main_~j~5 1), 7224#(<= ULTIMATE.start_main_~j~5 0)] [2018-07-23 13:40:54,207 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 342 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:54,208 INFO L450 AbstractCegarLoop]: Interpolant automaton has 40 states [2018-07-23 13:40:54,208 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2018-07-23 13:40:54,209 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=419, Invalid=1141, Unknown=0, NotChecked=0, Total=1560 [2018-07-23 13:40:54,209 INFO L87 Difference]: Start difference. First operand 60 states and 61 transitions. Second operand 40 states. [2018-07-23 13:40:54,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:40:54,448 INFO L93 Difference]: Finished difference Result 102 states and 104 transitions. [2018-07-23 13:40:54,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2018-07-23 13:40:54,448 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 59 [2018-07-23 13:40:54,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:40:54,449 INFO L225 Difference]: With dead ends: 102 [2018-07-23 13:40:54,449 INFO L226 Difference]: Without dead ends: 61 [2018-07-23 13:40:54,452 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 495 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=837, Invalid=2585, Unknown=0, NotChecked=0, Total=3422 [2018-07-23 13:40:54,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-07-23 13:40:54,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2018-07-23 13:40:54,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-07-23 13:40:54,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 62 transitions. [2018-07-23 13:40:54,462 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 62 transitions. Word has length 59 [2018-07-23 13:40:54,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:40:54,463 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 62 transitions. [2018-07-23 13:40:54,463 INFO L472 AbstractCegarLoop]: Interpolant automaton has 40 states. [2018-07-23 13:40:54,463 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 62 transitions. [2018-07-23 13:40:54,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-07-23 13:40:54,464 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:40:54,464 INFO L357 BasicCegarLoop]: trace histogram [19, 19, 18, 1, 1, 1, 1] [2018-07-23 13:40:54,464 INFO L414 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:40:54,464 INFO L82 PathProgramCache]: Analyzing trace with hash 379241938, now seen corresponding path program 36 times [2018-07-23 13:40:54,465 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:40:54,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:40:54,585 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 190 proven. 342 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:54,585 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:40:54,586 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2018-07-23 13:40:54,586 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:40:54,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:54,586 INFO L185 omatonBuilderFactory]: Interpolants [7589#true, 7590#false, 7591#(<= 0 ULTIMATE.start_main_~k~5), 7592#(<= 1 ULTIMATE.start_main_~k~5), 7593#(<= 2 ULTIMATE.start_main_~k~5), 7594#(<= 3 ULTIMATE.start_main_~k~5), 7595#(<= 4 ULTIMATE.start_main_~k~5), 7596#(<= 5 ULTIMATE.start_main_~k~5), 7597#(<= 6 ULTIMATE.start_main_~k~5), 7598#(<= 7 ULTIMATE.start_main_~k~5), 7599#(<= 8 ULTIMATE.start_main_~k~5), 7600#(<= 9 ULTIMATE.start_main_~k~5), 7601#(<= 10 ULTIMATE.start_main_~k~5), 7602#(<= 11 ULTIMATE.start_main_~k~5), 7603#(<= 12 ULTIMATE.start_main_~k~5), 7604#(<= 13 ULTIMATE.start_main_~k~5), 7605#(<= 14 ULTIMATE.start_main_~k~5), 7606#(<= 15 ULTIMATE.start_main_~k~5), 7607#(<= 16 ULTIMATE.start_main_~k~5), 7608#(<= 17 ULTIMATE.start_main_~k~5), 7609#(<= 18 ULTIMATE.start_main_~k~5), 7610#(<= 19 ULTIMATE.start_main_~k~5), 7611#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond)] [2018-07-23 13:40:54,587 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 190 proven. 342 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:54,587 INFO L450 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-07-23 13:40:54,587 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-07-23 13:40:54,587 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=233, Invalid=273, Unknown=0, NotChecked=0, Total=506 [2018-07-23 13:40:54,588 INFO L87 Difference]: Start difference. First operand 61 states and 62 transitions. Second operand 23 states. [2018-07-23 13:40:54,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:40:54,694 INFO L93 Difference]: Finished difference Result 69 states and 70 transitions. [2018-07-23 13:40:54,695 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2018-07-23 13:40:54,695 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 60 [2018-07-23 13:40:54,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:40:54,696 INFO L225 Difference]: With dead ends: 69 [2018-07-23 13:40:54,696 INFO L226 Difference]: Without dead ends: 67 [2018-07-23 13:40:54,697 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=693, Invalid=1113, Unknown=0, NotChecked=0, Total=1806 [2018-07-23 13:40:54,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-07-23 13:40:54,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 63. [2018-07-23 13:40:54,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-07-23 13:40:54,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 64 transitions. [2018-07-23 13:40:54,709 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 64 transitions. Word has length 60 [2018-07-23 13:40:54,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:40:54,710 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 64 transitions. [2018-07-23 13:40:54,710 INFO L472 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-07-23 13:40:54,710 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 64 transitions. [2018-07-23 13:40:54,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-07-23 13:40:54,710 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:40:54,710 INFO L357 BasicCegarLoop]: trace histogram [20, 19, 19, 1, 1, 1, 1] [2018-07-23 13:40:54,711 INFO L414 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:40:54,711 INFO L82 PathProgramCache]: Analyzing trace with hash -620651718, now seen corresponding path program 37 times [2018-07-23 13:40:54,711 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:40:54,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:40:54,871 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 380 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:54,871 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:40:54,872 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [41] total 41 [2018-07-23 13:40:54,872 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:40:54,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:54,872 INFO L185 omatonBuilderFactory]: Interpolants [7936#(<= ULTIMATE.start_main_~i~5 18), 7937#(<= ULTIMATE.start_main_~i~5 19), 7938#(<= ULTIMATE.start_main_~j~5 19), 7939#(<= ULTIMATE.start_main_~j~5 18), 7940#(<= ULTIMATE.start_main_~j~5 17), 7941#(<= ULTIMATE.start_main_~j~5 16), 7942#(<= ULTIMATE.start_main_~j~5 15), 7943#(<= ULTIMATE.start_main_~j~5 14), 7944#(<= ULTIMATE.start_main_~j~5 13), 7945#(<= ULTIMATE.start_main_~j~5 12), 7946#(<= ULTIMATE.start_main_~j~5 11), 7947#(<= ULTIMATE.start_main_~j~5 10), 7948#(<= ULTIMATE.start_main_~j~5 9), 7949#(<= ULTIMATE.start_main_~j~5 8), 7950#(<= ULTIMATE.start_main_~j~5 7), 7951#(<= ULTIMATE.start_main_~j~5 6), 7952#(<= ULTIMATE.start_main_~j~5 5), 7953#(<= ULTIMATE.start_main_~j~5 4), 7954#(<= ULTIMATE.start_main_~j~5 3), 7955#(<= ULTIMATE.start_main_~j~5 2), 7956#(<= ULTIMATE.start_main_~j~5 1), 7957#(<= ULTIMATE.start_main_~j~5 0), 7916#true, 7917#false, 7918#(<= ULTIMATE.start_main_~i~5 0), 7919#(<= ULTIMATE.start_main_~i~5 1), 7920#(<= ULTIMATE.start_main_~i~5 2), 7921#(<= ULTIMATE.start_main_~i~5 3), 7922#(<= ULTIMATE.start_main_~i~5 4), 7923#(<= ULTIMATE.start_main_~i~5 5), 7924#(<= ULTIMATE.start_main_~i~5 6), 7925#(<= ULTIMATE.start_main_~i~5 7), 7926#(<= ULTIMATE.start_main_~i~5 8), 7927#(<= ULTIMATE.start_main_~i~5 9), 7928#(<= ULTIMATE.start_main_~i~5 10), 7929#(<= ULTIMATE.start_main_~i~5 11), 7930#(<= ULTIMATE.start_main_~i~5 12), 7931#(<= ULTIMATE.start_main_~i~5 13), 7932#(<= ULTIMATE.start_main_~i~5 14), 7933#(<= ULTIMATE.start_main_~i~5 15), 7934#(<= ULTIMATE.start_main_~i~5 16), 7935#(<= ULTIMATE.start_main_~i~5 17)] [2018-07-23 13:40:54,873 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 380 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:54,873 INFO L450 AbstractCegarLoop]: Interpolant automaton has 42 states [2018-07-23 13:40:54,873 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2018-07-23 13:40:54,874 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=461, Invalid=1261, Unknown=0, NotChecked=0, Total=1722 [2018-07-23 13:40:54,874 INFO L87 Difference]: Start difference. First operand 63 states and 64 transitions. Second operand 42 states. [2018-07-23 13:40:55,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:40:55,003 INFO L93 Difference]: Finished difference Result 107 states and 109 transitions. [2018-07-23 13:40:55,003 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2018-07-23 13:40:55,003 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 62 [2018-07-23 13:40:55,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:40:55,004 INFO L225 Difference]: With dead ends: 107 [2018-07-23 13:40:55,004 INFO L226 Difference]: Without dead ends: 64 [2018-07-23 13:40:55,006 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 551 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=921, Invalid=2861, Unknown=0, NotChecked=0, Total=3782 [2018-07-23 13:40:55,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-07-23 13:40:55,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2018-07-23 13:40:55,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-07-23 13:40:55,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 65 transitions. [2018-07-23 13:40:55,015 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 65 transitions. Word has length 62 [2018-07-23 13:40:55,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:40:55,015 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 65 transitions. [2018-07-23 13:40:55,015 INFO L472 AbstractCegarLoop]: Interpolant automaton has 42 states. [2018-07-23 13:40:55,015 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 65 transitions. [2018-07-23 13:40:55,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-07-23 13:40:55,016 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:40:55,016 INFO L357 BasicCegarLoop]: trace histogram [20, 20, 19, 1, 1, 1, 1] [2018-07-23 13:40:55,016 INFO L414 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:40:55,017 INFO L82 PathProgramCache]: Analyzing trace with hash 1259030771, now seen corresponding path program 38 times [2018-07-23 13:40:55,017 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:40:55,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:40:55,117 INFO L134 CoverageAnalysis]: Checked inductivity of 590 backedges. 210 proven. 380 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:55,117 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:40:55,117 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-07-23 13:40:55,117 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:40:55,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:55,118 INFO L185 omatonBuilderFactory]: Interpolants [8352#(<= 10 ULTIMATE.start_main_~k~5), 8353#(<= 11 ULTIMATE.start_main_~k~5), 8354#(<= 12 ULTIMATE.start_main_~k~5), 8355#(<= 13 ULTIMATE.start_main_~k~5), 8356#(<= 14 ULTIMATE.start_main_~k~5), 8357#(<= 15 ULTIMATE.start_main_~k~5), 8358#(<= 16 ULTIMATE.start_main_~k~5), 8359#(<= 17 ULTIMATE.start_main_~k~5), 8360#(<= 18 ULTIMATE.start_main_~k~5), 8361#(<= 19 ULTIMATE.start_main_~k~5), 8362#(<= 20 ULTIMATE.start_main_~k~5), 8363#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 8340#true, 8341#false, 8342#(<= 0 ULTIMATE.start_main_~k~5), 8343#(<= 1 ULTIMATE.start_main_~k~5), 8344#(<= 2 ULTIMATE.start_main_~k~5), 8345#(<= 3 ULTIMATE.start_main_~k~5), 8346#(<= 4 ULTIMATE.start_main_~k~5), 8347#(<= 5 ULTIMATE.start_main_~k~5), 8348#(<= 6 ULTIMATE.start_main_~k~5), 8349#(<= 7 ULTIMATE.start_main_~k~5), 8350#(<= 8 ULTIMATE.start_main_~k~5), 8351#(<= 9 ULTIMATE.start_main_~k~5)] [2018-07-23 13:40:55,118 INFO L134 CoverageAnalysis]: Checked inductivity of 590 backedges. 210 proven. 380 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:55,118 INFO L450 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-07-23 13:40:55,119 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-07-23 13:40:55,119 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=255, Invalid=297, Unknown=0, NotChecked=0, Total=552 [2018-07-23 13:40:55,119 INFO L87 Difference]: Start difference. First operand 64 states and 65 transitions. Second operand 24 states. [2018-07-23 13:40:55,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:40:55,210 INFO L93 Difference]: Finished difference Result 72 states and 73 transitions. [2018-07-23 13:40:55,210 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-07-23 13:40:55,211 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 63 [2018-07-23 13:40:55,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:40:55,211 INFO L225 Difference]: With dead ends: 72 [2018-07-23 13:40:55,212 INFO L226 Difference]: Without dead ends: 70 [2018-07-23 13:40:55,213 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 420 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=759, Invalid=1221, Unknown=0, NotChecked=0, Total=1980 [2018-07-23 13:40:55,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-07-23 13:40:55,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 66. [2018-07-23 13:40:55,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2018-07-23 13:40:55,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 67 transitions. [2018-07-23 13:40:55,222 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 67 transitions. Word has length 63 [2018-07-23 13:40:55,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:40:55,222 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 67 transitions. [2018-07-23 13:40:55,222 INFO L472 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-07-23 13:40:55,223 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 67 transitions. [2018-07-23 13:40:55,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-07-23 13:40:55,223 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:40:55,223 INFO L357 BasicCegarLoop]: trace histogram [21, 20, 20, 1, 1, 1, 1] [2018-07-23 13:40:55,223 INFO L414 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:40:55,224 INFO L82 PathProgramCache]: Analyzing trace with hash -1252140517, now seen corresponding path program 39 times [2018-07-23 13:40:55,224 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:40:55,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:40:55,369 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 420 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:55,370 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:40:55,370 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [43] total 43 [2018-07-23 13:40:55,370 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:40:55,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:55,370 INFO L185 omatonBuilderFactory]: Interpolants [8704#(<= ULTIMATE.start_main_~i~5 20), 8705#(<= ULTIMATE.start_main_~j~5 20), 8706#(<= ULTIMATE.start_main_~j~5 19), 8707#(<= ULTIMATE.start_main_~j~5 18), 8708#(<= ULTIMATE.start_main_~j~5 17), 8709#(<= ULTIMATE.start_main_~j~5 16), 8710#(<= ULTIMATE.start_main_~j~5 15), 8711#(<= ULTIMATE.start_main_~j~5 14), 8712#(<= ULTIMATE.start_main_~j~5 13), 8713#(<= ULTIMATE.start_main_~j~5 12), 8714#(<= ULTIMATE.start_main_~j~5 11), 8715#(<= ULTIMATE.start_main_~j~5 10), 8716#(<= ULTIMATE.start_main_~j~5 9), 8717#(<= ULTIMATE.start_main_~j~5 8), 8718#(<= ULTIMATE.start_main_~j~5 7), 8719#(<= ULTIMATE.start_main_~j~5 6), 8720#(<= ULTIMATE.start_main_~j~5 5), 8721#(<= ULTIMATE.start_main_~j~5 4), 8722#(<= ULTIMATE.start_main_~j~5 3), 8723#(<= ULTIMATE.start_main_~j~5 2), 8724#(<= ULTIMATE.start_main_~j~5 1), 8725#(<= ULTIMATE.start_main_~j~5 0), 8682#true, 8683#false, 8684#(<= ULTIMATE.start_main_~i~5 0), 8685#(<= ULTIMATE.start_main_~i~5 1), 8686#(<= ULTIMATE.start_main_~i~5 2), 8687#(<= ULTIMATE.start_main_~i~5 3), 8688#(<= ULTIMATE.start_main_~i~5 4), 8689#(<= ULTIMATE.start_main_~i~5 5), 8690#(<= ULTIMATE.start_main_~i~5 6), 8691#(<= ULTIMATE.start_main_~i~5 7), 8692#(<= ULTIMATE.start_main_~i~5 8), 8693#(<= ULTIMATE.start_main_~i~5 9), 8694#(<= ULTIMATE.start_main_~i~5 10), 8695#(<= ULTIMATE.start_main_~i~5 11), 8696#(<= ULTIMATE.start_main_~i~5 12), 8697#(<= ULTIMATE.start_main_~i~5 13), 8698#(<= ULTIMATE.start_main_~i~5 14), 8699#(<= ULTIMATE.start_main_~i~5 15), 8700#(<= ULTIMATE.start_main_~i~5 16), 8701#(<= ULTIMATE.start_main_~i~5 17), 8702#(<= ULTIMATE.start_main_~i~5 18), 8703#(<= ULTIMATE.start_main_~i~5 19)] [2018-07-23 13:40:55,371 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 420 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:55,371 INFO L450 AbstractCegarLoop]: Interpolant automaton has 44 states [2018-07-23 13:40:55,371 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2018-07-23 13:40:55,372 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=505, Invalid=1387, Unknown=0, NotChecked=0, Total=1892 [2018-07-23 13:40:55,372 INFO L87 Difference]: Start difference. First operand 66 states and 67 transitions. Second operand 44 states. [2018-07-23 13:40:55,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:40:55,611 INFO L93 Difference]: Finished difference Result 112 states and 114 transitions. [2018-07-23 13:40:55,612 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-07-23 13:40:55,612 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 65 [2018-07-23 13:40:55,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:40:55,612 INFO L225 Difference]: With dead ends: 112 [2018-07-23 13:40:55,613 INFO L226 Difference]: Without dead ends: 67 [2018-07-23 13:40:55,614 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 610 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=1009, Invalid=3151, Unknown=0, NotChecked=0, Total=4160 [2018-07-23 13:40:55,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-07-23 13:40:55,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2018-07-23 13:40:55,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-07-23 13:40:55,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 68 transitions. [2018-07-23 13:40:55,625 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 68 transitions. Word has length 65 [2018-07-23 13:40:55,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:40:55,625 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 68 transitions. [2018-07-23 13:40:55,625 INFO L472 AbstractCegarLoop]: Interpolant automaton has 44 states. [2018-07-23 13:40:55,625 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 68 transitions. [2018-07-23 13:40:55,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-07-23 13:40:55,626 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:40:55,626 INFO L357 BasicCegarLoop]: trace histogram [21, 21, 20, 1, 1, 1, 1] [2018-07-23 13:40:55,626 INFO L414 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:40:55,626 INFO L82 PathProgramCache]: Analyzing trace with hash -1414715966, now seen corresponding path program 40 times [2018-07-23 13:40:55,626 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:40:55,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:40:55,715 INFO L134 CoverageAnalysis]: Checked inductivity of 651 backedges. 231 proven. 420 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:55,715 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:40:55,716 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2018-07-23 13:40:55,716 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:40:55,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:55,716 INFO L185 omatonBuilderFactory]: Interpolants [9126#true, 9127#false, 9128#(<= 0 ULTIMATE.start_main_~k~5), 9129#(<= 1 ULTIMATE.start_main_~k~5), 9130#(<= 2 ULTIMATE.start_main_~k~5), 9131#(<= 3 ULTIMATE.start_main_~k~5), 9132#(<= 4 ULTIMATE.start_main_~k~5), 9133#(<= 5 ULTIMATE.start_main_~k~5), 9134#(<= 6 ULTIMATE.start_main_~k~5), 9135#(<= 7 ULTIMATE.start_main_~k~5), 9136#(<= 8 ULTIMATE.start_main_~k~5), 9137#(<= 9 ULTIMATE.start_main_~k~5), 9138#(<= 10 ULTIMATE.start_main_~k~5), 9139#(<= 11 ULTIMATE.start_main_~k~5), 9140#(<= 12 ULTIMATE.start_main_~k~5), 9141#(<= 13 ULTIMATE.start_main_~k~5), 9142#(<= 14 ULTIMATE.start_main_~k~5), 9143#(<= 15 ULTIMATE.start_main_~k~5), 9144#(<= 16 ULTIMATE.start_main_~k~5), 9145#(<= 17 ULTIMATE.start_main_~k~5), 9146#(<= 18 ULTIMATE.start_main_~k~5), 9147#(<= 19 ULTIMATE.start_main_~k~5), 9148#(<= 20 ULTIMATE.start_main_~k~5), 9149#(<= 21 ULTIMATE.start_main_~k~5), 9150#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond)] [2018-07-23 13:40:55,717 INFO L134 CoverageAnalysis]: Checked inductivity of 651 backedges. 231 proven. 420 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:55,717 INFO L450 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-07-23 13:40:55,717 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-07-23 13:40:55,717 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=278, Invalid=322, Unknown=0, NotChecked=0, Total=600 [2018-07-23 13:40:55,718 INFO L87 Difference]: Start difference. First operand 67 states and 68 transitions. Second operand 25 states. [2018-07-23 13:40:55,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:40:55,814 INFO L93 Difference]: Finished difference Result 75 states and 76 transitions. [2018-07-23 13:40:55,814 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2018-07-23 13:40:55,814 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 66 [2018-07-23 13:40:55,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:40:55,815 INFO L225 Difference]: With dead ends: 75 [2018-07-23 13:40:55,815 INFO L226 Difference]: Without dead ends: 73 [2018-07-23 13:40:55,816 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 462 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=828, Invalid=1334, Unknown=0, NotChecked=0, Total=2162 [2018-07-23 13:40:55,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-07-23 13:40:55,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 69. [2018-07-23 13:40:55,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-07-23 13:40:55,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 70 transitions. [2018-07-23 13:40:55,825 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 70 transitions. Word has length 66 [2018-07-23 13:40:55,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:40:55,826 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 70 transitions. [2018-07-23 13:40:55,826 INFO L472 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-07-23 13:40:55,826 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 70 transitions. [2018-07-23 13:40:55,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-07-23 13:40:55,827 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:40:55,827 INFO L357 BasicCegarLoop]: trace histogram [22, 21, 21, 1, 1, 1, 1] [2018-07-23 13:40:55,827 INFO L414 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:40:55,827 INFO L82 PathProgramCache]: Analyzing trace with hash 1962655530, now seen corresponding path program 41 times [2018-07-23 13:40:55,827 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:40:55,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:40:55,974 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 462 proven. 231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:55,974 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:40:55,974 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [45] total 45 [2018-07-23 13:40:55,974 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:40:55,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:55,975 INFO L185 omatonBuilderFactory]: Interpolants [9483#true, 9484#false, 9485#(<= ULTIMATE.start_main_~i~5 0), 9486#(<= ULTIMATE.start_main_~i~5 1), 9487#(<= ULTIMATE.start_main_~i~5 2), 9488#(<= ULTIMATE.start_main_~i~5 3), 9489#(<= ULTIMATE.start_main_~i~5 4), 9490#(<= ULTIMATE.start_main_~i~5 5), 9491#(<= ULTIMATE.start_main_~i~5 6), 9492#(<= ULTIMATE.start_main_~i~5 7), 9493#(<= ULTIMATE.start_main_~i~5 8), 9494#(<= ULTIMATE.start_main_~i~5 9), 9495#(<= ULTIMATE.start_main_~i~5 10), 9496#(<= ULTIMATE.start_main_~i~5 11), 9497#(<= ULTIMATE.start_main_~i~5 12), 9498#(<= ULTIMATE.start_main_~i~5 13), 9499#(<= ULTIMATE.start_main_~i~5 14), 9500#(<= ULTIMATE.start_main_~i~5 15), 9501#(<= ULTIMATE.start_main_~i~5 16), 9502#(<= ULTIMATE.start_main_~i~5 17), 9503#(<= ULTIMATE.start_main_~i~5 18), 9504#(<= ULTIMATE.start_main_~i~5 19), 9505#(<= ULTIMATE.start_main_~i~5 20), 9506#(<= ULTIMATE.start_main_~i~5 21), 9507#(<= ULTIMATE.start_main_~j~5 21), 9508#(<= ULTIMATE.start_main_~j~5 20), 9509#(<= ULTIMATE.start_main_~j~5 19), 9510#(<= ULTIMATE.start_main_~j~5 18), 9511#(<= ULTIMATE.start_main_~j~5 17), 9512#(<= ULTIMATE.start_main_~j~5 16), 9513#(<= ULTIMATE.start_main_~j~5 15), 9514#(<= ULTIMATE.start_main_~j~5 14), 9515#(<= ULTIMATE.start_main_~j~5 13), 9516#(<= ULTIMATE.start_main_~j~5 12), 9517#(<= ULTIMATE.start_main_~j~5 11), 9518#(<= ULTIMATE.start_main_~j~5 10), 9519#(<= ULTIMATE.start_main_~j~5 9), 9520#(<= ULTIMATE.start_main_~j~5 8), 9521#(<= ULTIMATE.start_main_~j~5 7), 9522#(<= ULTIMATE.start_main_~j~5 6), 9523#(<= ULTIMATE.start_main_~j~5 5), 9524#(<= ULTIMATE.start_main_~j~5 4), 9525#(<= ULTIMATE.start_main_~j~5 3), 9526#(<= ULTIMATE.start_main_~j~5 2), 9527#(<= ULTIMATE.start_main_~j~5 1), 9528#(<= ULTIMATE.start_main_~j~5 0)] [2018-07-23 13:40:55,975 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 462 proven. 231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:55,975 INFO L450 AbstractCegarLoop]: Interpolant automaton has 46 states [2018-07-23 13:40:55,976 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2018-07-23 13:40:55,976 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2018-07-23 13:40:55,976 INFO L87 Difference]: Start difference. First operand 69 states and 70 transitions. Second operand 46 states. [2018-07-23 13:40:56,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:40:56,214 INFO L93 Difference]: Finished difference Result 117 states and 119 transitions. [2018-07-23 13:40:56,214 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2018-07-23 13:40:56,214 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 68 [2018-07-23 13:40:56,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:40:56,215 INFO L225 Difference]: With dead ends: 117 [2018-07-23 13:40:56,215 INFO L226 Difference]: Without dead ends: 70 [2018-07-23 13:40:56,217 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 672 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=1101, Invalid=3455, Unknown=0, NotChecked=0, Total=4556 [2018-07-23 13:40:56,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-07-23 13:40:56,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2018-07-23 13:40:56,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2018-07-23 13:40:56,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 71 transitions. [2018-07-23 13:40:56,226 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 71 transitions. Word has length 68 [2018-07-23 13:40:56,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:40:56,227 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 71 transitions. [2018-07-23 13:40:56,227 INFO L472 AbstractCegarLoop]: Interpolant automaton has 46 states. [2018-07-23 13:40:56,227 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 71 transitions. [2018-07-23 13:40:56,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-07-23 13:40:56,227 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:40:56,228 INFO L357 BasicCegarLoop]: trace histogram [22, 22, 21, 1, 1, 1, 1] [2018-07-23 13:40:56,228 INFO L414 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:40:56,228 INFO L82 PathProgramCache]: Analyzing trace with hash -894403037, now seen corresponding path program 42 times [2018-07-23 13:40:56,228 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:40:56,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:40:56,317 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 253 proven. 462 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:56,317 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:40:56,317 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2018-07-23 13:40:56,318 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:40:56,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:56,318 INFO L185 omatonBuilderFactory]: Interpolants [9947#true, 9948#false, 9949#(<= 0 ULTIMATE.start_main_~k~5), 9950#(<= 1 ULTIMATE.start_main_~k~5), 9951#(<= 2 ULTIMATE.start_main_~k~5), 9952#(<= 3 ULTIMATE.start_main_~k~5), 9953#(<= 4 ULTIMATE.start_main_~k~5), 9954#(<= 5 ULTIMATE.start_main_~k~5), 9955#(<= 6 ULTIMATE.start_main_~k~5), 9956#(<= 7 ULTIMATE.start_main_~k~5), 9957#(<= 8 ULTIMATE.start_main_~k~5), 9958#(<= 9 ULTIMATE.start_main_~k~5), 9959#(<= 10 ULTIMATE.start_main_~k~5), 9960#(<= 11 ULTIMATE.start_main_~k~5), 9961#(<= 12 ULTIMATE.start_main_~k~5), 9962#(<= 13 ULTIMATE.start_main_~k~5), 9963#(<= 14 ULTIMATE.start_main_~k~5), 9964#(<= 15 ULTIMATE.start_main_~k~5), 9965#(<= 16 ULTIMATE.start_main_~k~5), 9966#(<= 17 ULTIMATE.start_main_~k~5), 9967#(<= 18 ULTIMATE.start_main_~k~5), 9968#(<= 19 ULTIMATE.start_main_~k~5), 9969#(<= 20 ULTIMATE.start_main_~k~5), 9970#(<= 21 ULTIMATE.start_main_~k~5), 9971#(<= 22 ULTIMATE.start_main_~k~5), 9972#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond)] [2018-07-23 13:40:56,318 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 253 proven. 462 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:56,319 INFO L450 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-07-23 13:40:56,319 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-07-23 13:40:56,319 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=302, Invalid=348, Unknown=0, NotChecked=0, Total=650 [2018-07-23 13:40:56,319 INFO L87 Difference]: Start difference. First operand 70 states and 71 transitions. Second operand 26 states. [2018-07-23 13:40:56,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:40:56,420 INFO L93 Difference]: Finished difference Result 78 states and 79 transitions. [2018-07-23 13:40:56,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2018-07-23 13:40:56,421 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 69 [2018-07-23 13:40:56,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:40:56,421 INFO L225 Difference]: With dead ends: 78 [2018-07-23 13:40:56,421 INFO L226 Difference]: Without dead ends: 76 [2018-07-23 13:40:56,422 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 506 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=900, Invalid=1452, Unknown=0, NotChecked=0, Total=2352 [2018-07-23 13:40:56,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-07-23 13:40:56,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 72. [2018-07-23 13:40:56,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-07-23 13:40:56,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 73 transitions. [2018-07-23 13:40:56,433 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 73 transitions. Word has length 69 [2018-07-23 13:40:56,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:40:56,433 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 73 transitions. [2018-07-23 13:40:56,433 INFO L472 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-07-23 13:40:56,433 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 73 transitions. [2018-07-23 13:40:56,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-07-23 13:40:56,434 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:40:56,434 INFO L357 BasicCegarLoop]: trace histogram [23, 22, 22, 1, 1, 1, 1] [2018-07-23 13:40:56,434 INFO L414 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:40:56,434 INFO L82 PathProgramCache]: Analyzing trace with hash -527793333, now seen corresponding path program 43 times [2018-07-23 13:40:56,435 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:40:56,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:40:56,582 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 506 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:56,583 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:40:56,583 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [47] total 47 [2018-07-23 13:40:56,583 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:40:56,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:56,584 INFO L185 omatonBuilderFactory]: Interpolants [10319#true, 10320#false, 10321#(<= ULTIMATE.start_main_~i~5 0), 10322#(<= ULTIMATE.start_main_~i~5 1), 10323#(<= ULTIMATE.start_main_~i~5 2), 10324#(<= ULTIMATE.start_main_~i~5 3), 10325#(<= ULTIMATE.start_main_~i~5 4), 10326#(<= ULTIMATE.start_main_~i~5 5), 10327#(<= ULTIMATE.start_main_~i~5 6), 10328#(<= ULTIMATE.start_main_~i~5 7), 10329#(<= ULTIMATE.start_main_~i~5 8), 10330#(<= ULTIMATE.start_main_~i~5 9), 10331#(<= ULTIMATE.start_main_~i~5 10), 10332#(<= ULTIMATE.start_main_~i~5 11), 10333#(<= ULTIMATE.start_main_~i~5 12), 10334#(<= ULTIMATE.start_main_~i~5 13), 10335#(<= ULTIMATE.start_main_~i~5 14), 10336#(<= ULTIMATE.start_main_~i~5 15), 10337#(<= ULTIMATE.start_main_~i~5 16), 10338#(<= ULTIMATE.start_main_~i~5 17), 10339#(<= ULTIMATE.start_main_~i~5 18), 10340#(<= ULTIMATE.start_main_~i~5 19), 10341#(<= ULTIMATE.start_main_~i~5 20), 10342#(<= ULTIMATE.start_main_~i~5 21), 10343#(<= ULTIMATE.start_main_~i~5 22), 10344#(<= ULTIMATE.start_main_~j~5 22), 10345#(<= ULTIMATE.start_main_~j~5 21), 10346#(<= ULTIMATE.start_main_~j~5 20), 10347#(<= ULTIMATE.start_main_~j~5 19), 10348#(<= ULTIMATE.start_main_~j~5 18), 10349#(<= ULTIMATE.start_main_~j~5 17), 10350#(<= ULTIMATE.start_main_~j~5 16), 10351#(<= ULTIMATE.start_main_~j~5 15), 10352#(<= ULTIMATE.start_main_~j~5 14), 10353#(<= ULTIMATE.start_main_~j~5 13), 10354#(<= ULTIMATE.start_main_~j~5 12), 10355#(<= ULTIMATE.start_main_~j~5 11), 10356#(<= ULTIMATE.start_main_~j~5 10), 10357#(<= ULTIMATE.start_main_~j~5 9), 10358#(<= ULTIMATE.start_main_~j~5 8), 10359#(<= ULTIMATE.start_main_~j~5 7), 10360#(<= ULTIMATE.start_main_~j~5 6), 10361#(<= ULTIMATE.start_main_~j~5 5), 10362#(<= ULTIMATE.start_main_~j~5 4), 10363#(<= ULTIMATE.start_main_~j~5 3), 10364#(<= ULTIMATE.start_main_~j~5 2), 10365#(<= ULTIMATE.start_main_~j~5 1), 10366#(<= ULTIMATE.start_main_~j~5 0)] [2018-07-23 13:40:56,584 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 506 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:56,584 INFO L450 AbstractCegarLoop]: Interpolant automaton has 48 states [2018-07-23 13:40:56,585 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2018-07-23 13:40:56,585 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=599, Invalid=1657, Unknown=0, NotChecked=0, Total=2256 [2018-07-23 13:40:56,586 INFO L87 Difference]: Start difference. First operand 72 states and 73 transitions. Second operand 48 states. [2018-07-23 13:40:56,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:40:56,850 INFO L93 Difference]: Finished difference Result 122 states and 124 transitions. [2018-07-23 13:40:56,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2018-07-23 13:40:56,850 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 71 [2018-07-23 13:40:56,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:40:56,851 INFO L225 Difference]: With dead ends: 122 [2018-07-23 13:40:56,851 INFO L226 Difference]: Without dead ends: 73 [2018-07-23 13:40:56,853 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 737 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=1197, Invalid=3773, Unknown=0, NotChecked=0, Total=4970 [2018-07-23 13:40:56,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-07-23 13:40:56,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2018-07-23 13:40:56,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-07-23 13:40:56,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 74 transitions. [2018-07-23 13:40:56,863 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 74 transitions. Word has length 71 [2018-07-23 13:40:56,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:40:56,863 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 74 transitions. [2018-07-23 13:40:56,863 INFO L472 AbstractCegarLoop]: Interpolant automaton has 48 states. [2018-07-23 13:40:56,864 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 74 transitions. [2018-07-23 13:40:56,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-07-23 13:40:56,864 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:40:56,864 INFO L357 BasicCegarLoop]: trace histogram [23, 23, 22, 1, 1, 1, 1] [2018-07-23 13:40:56,865 INFO L414 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:40:56,865 INFO L82 PathProgramCache]: Analyzing trace with hash -1792657998, now seen corresponding path program 44 times [2018-07-23 13:40:56,865 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:40:56,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:40:56,961 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 276 proven. 506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:56,961 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:40:56,962 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-07-23 13:40:56,962 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:40:56,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:56,962 INFO L185 omatonBuilderFactory]: Interpolants [10816#(<= 11 ULTIMATE.start_main_~k~5), 10817#(<= 12 ULTIMATE.start_main_~k~5), 10818#(<= 13 ULTIMATE.start_main_~k~5), 10819#(<= 14 ULTIMATE.start_main_~k~5), 10820#(<= 15 ULTIMATE.start_main_~k~5), 10821#(<= 16 ULTIMATE.start_main_~k~5), 10822#(<= 17 ULTIMATE.start_main_~k~5), 10823#(<= 18 ULTIMATE.start_main_~k~5), 10824#(<= 19 ULTIMATE.start_main_~k~5), 10825#(<= 20 ULTIMATE.start_main_~k~5), 10826#(<= 21 ULTIMATE.start_main_~k~5), 10827#(<= 22 ULTIMATE.start_main_~k~5), 10828#(<= 23 ULTIMATE.start_main_~k~5), 10829#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 10803#true, 10804#false, 10805#(<= 0 ULTIMATE.start_main_~k~5), 10806#(<= 1 ULTIMATE.start_main_~k~5), 10807#(<= 2 ULTIMATE.start_main_~k~5), 10808#(<= 3 ULTIMATE.start_main_~k~5), 10809#(<= 4 ULTIMATE.start_main_~k~5), 10810#(<= 5 ULTIMATE.start_main_~k~5), 10811#(<= 6 ULTIMATE.start_main_~k~5), 10812#(<= 7 ULTIMATE.start_main_~k~5), 10813#(<= 8 ULTIMATE.start_main_~k~5), 10814#(<= 9 ULTIMATE.start_main_~k~5), 10815#(<= 10 ULTIMATE.start_main_~k~5)] [2018-07-23 13:40:56,963 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 276 proven. 506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:56,963 INFO L450 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-07-23 13:40:56,963 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-07-23 13:40:56,964 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=327, Invalid=375, Unknown=0, NotChecked=0, Total=702 [2018-07-23 13:40:56,964 INFO L87 Difference]: Start difference. First operand 73 states and 74 transitions. Second operand 27 states. [2018-07-23 13:40:57,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:40:57,083 INFO L93 Difference]: Finished difference Result 81 states and 82 transitions. [2018-07-23 13:40:57,083 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2018-07-23 13:40:57,083 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 72 [2018-07-23 13:40:57,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:40:57,084 INFO L225 Difference]: With dead ends: 81 [2018-07-23 13:40:57,084 INFO L226 Difference]: Without dead ends: 79 [2018-07-23 13:40:57,085 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 552 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=975, Invalid=1575, Unknown=0, NotChecked=0, Total=2550 [2018-07-23 13:40:57,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2018-07-23 13:40:57,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 75. [2018-07-23 13:40:57,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-07-23 13:40:57,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 76 transitions. [2018-07-23 13:40:57,098 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 76 transitions. Word has length 72 [2018-07-23 13:40:57,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:40:57,098 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 76 transitions. [2018-07-23 13:40:57,098 INFO L472 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-07-23 13:40:57,098 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 76 transitions. [2018-07-23 13:40:57,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-07-23 13:40:57,100 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:40:57,101 INFO L357 BasicCegarLoop]: trace histogram [24, 23, 23, 1, 1, 1, 1] [2018-07-23 13:40:57,101 INFO L414 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:40:57,101 INFO L82 PathProgramCache]: Analyzing trace with hash -462384358, now seen corresponding path program 45 times [2018-07-23 13:40:57,101 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:40:57,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:40:57,274 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 552 proven. 276 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:57,275 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:40:57,275 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [49] total 49 [2018-07-23 13:40:57,275 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:40:57,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:57,276 INFO L185 omatonBuilderFactory]: Interpolants [11190#true, 11191#false, 11192#(<= ULTIMATE.start_main_~i~5 0), 11193#(<= ULTIMATE.start_main_~i~5 1), 11194#(<= ULTIMATE.start_main_~i~5 2), 11195#(<= ULTIMATE.start_main_~i~5 3), 11196#(<= ULTIMATE.start_main_~i~5 4), 11197#(<= ULTIMATE.start_main_~i~5 5), 11198#(<= ULTIMATE.start_main_~i~5 6), 11199#(<= ULTIMATE.start_main_~i~5 7), 11200#(<= ULTIMATE.start_main_~i~5 8), 11201#(<= ULTIMATE.start_main_~i~5 9), 11202#(<= ULTIMATE.start_main_~i~5 10), 11203#(<= ULTIMATE.start_main_~i~5 11), 11204#(<= ULTIMATE.start_main_~i~5 12), 11205#(<= ULTIMATE.start_main_~i~5 13), 11206#(<= ULTIMATE.start_main_~i~5 14), 11207#(<= ULTIMATE.start_main_~i~5 15), 11208#(<= ULTIMATE.start_main_~i~5 16), 11209#(<= ULTIMATE.start_main_~i~5 17), 11210#(<= ULTIMATE.start_main_~i~5 18), 11211#(<= ULTIMATE.start_main_~i~5 19), 11212#(<= ULTIMATE.start_main_~i~5 20), 11213#(<= ULTIMATE.start_main_~i~5 21), 11214#(<= ULTIMATE.start_main_~i~5 22), 11215#(<= ULTIMATE.start_main_~i~5 23), 11216#(<= ULTIMATE.start_main_~j~5 23), 11217#(<= ULTIMATE.start_main_~j~5 22), 11218#(<= ULTIMATE.start_main_~j~5 21), 11219#(<= ULTIMATE.start_main_~j~5 20), 11220#(<= ULTIMATE.start_main_~j~5 19), 11221#(<= ULTIMATE.start_main_~j~5 18), 11222#(<= ULTIMATE.start_main_~j~5 17), 11223#(<= ULTIMATE.start_main_~j~5 16), 11224#(<= ULTIMATE.start_main_~j~5 15), 11225#(<= ULTIMATE.start_main_~j~5 14), 11226#(<= ULTIMATE.start_main_~j~5 13), 11227#(<= ULTIMATE.start_main_~j~5 12), 11228#(<= ULTIMATE.start_main_~j~5 11), 11229#(<= ULTIMATE.start_main_~j~5 10), 11230#(<= ULTIMATE.start_main_~j~5 9), 11231#(<= ULTIMATE.start_main_~j~5 8), 11232#(<= ULTIMATE.start_main_~j~5 7), 11233#(<= ULTIMATE.start_main_~j~5 6), 11234#(<= ULTIMATE.start_main_~j~5 5), 11235#(<= ULTIMATE.start_main_~j~5 4), 11236#(<= ULTIMATE.start_main_~j~5 3), 11237#(<= ULTIMATE.start_main_~j~5 2), 11238#(<= ULTIMATE.start_main_~j~5 1), 11239#(<= ULTIMATE.start_main_~j~5 0)] [2018-07-23 13:40:57,277 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 552 proven. 276 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:57,277 INFO L450 AbstractCegarLoop]: Interpolant automaton has 50 states [2018-07-23 13:40:57,277 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2018-07-23 13:40:57,278 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=649, Invalid=1801, Unknown=0, NotChecked=0, Total=2450 [2018-07-23 13:40:57,281 INFO L87 Difference]: Start difference. First operand 75 states and 76 transitions. Second operand 50 states. [2018-07-23 13:40:57,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:40:57,586 INFO L93 Difference]: Finished difference Result 127 states and 129 transitions. [2018-07-23 13:40:57,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2018-07-23 13:40:57,586 INFO L78 Accepts]: Start accepts. Automaton has 50 states. Word has length 74 [2018-07-23 13:40:57,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:40:57,587 INFO L225 Difference]: With dead ends: 127 [2018-07-23 13:40:57,587 INFO L226 Difference]: Without dead ends: 76 [2018-07-23 13:40:57,588 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 805 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=1297, Invalid=4105, Unknown=0, NotChecked=0, Total=5402 [2018-07-23 13:40:57,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-07-23 13:40:57,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2018-07-23 13:40:57,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2018-07-23 13:40:57,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 77 transitions. [2018-07-23 13:40:57,600 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 77 transitions. Word has length 74 [2018-07-23 13:40:57,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:40:57,600 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 77 transitions. [2018-07-23 13:40:57,600 INFO L472 AbstractCegarLoop]: Interpolant automaton has 50 states. [2018-07-23 13:40:57,600 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 77 transitions. [2018-07-23 13:40:57,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-07-23 13:40:57,601 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:40:57,601 INFO L357 BasicCegarLoop]: trace histogram [24, 24, 23, 1, 1, 1, 1] [2018-07-23 13:40:57,601 INFO L414 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:40:57,601 INFO L82 PathProgramCache]: Analyzing trace with hash 1997435731, now seen corresponding path program 46 times [2018-07-23 13:40:57,601 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:40:57,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:40:57,692 INFO L134 CoverageAnalysis]: Checked inductivity of 852 backedges. 300 proven. 552 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:57,692 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:40:57,692 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-07-23 13:40:57,692 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:40:57,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:57,693 INFO L185 omatonBuilderFactory]: Interpolants [11712#(<= 16 ULTIMATE.start_main_~k~5), 11713#(<= 17 ULTIMATE.start_main_~k~5), 11714#(<= 18 ULTIMATE.start_main_~k~5), 11715#(<= 19 ULTIMATE.start_main_~k~5), 11716#(<= 20 ULTIMATE.start_main_~k~5), 11717#(<= 21 ULTIMATE.start_main_~k~5), 11718#(<= 22 ULTIMATE.start_main_~k~5), 11719#(<= 23 ULTIMATE.start_main_~k~5), 11720#(<= 24 ULTIMATE.start_main_~k~5), 11721#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 11694#true, 11695#false, 11696#(<= 0 ULTIMATE.start_main_~k~5), 11697#(<= 1 ULTIMATE.start_main_~k~5), 11698#(<= 2 ULTIMATE.start_main_~k~5), 11699#(<= 3 ULTIMATE.start_main_~k~5), 11700#(<= 4 ULTIMATE.start_main_~k~5), 11701#(<= 5 ULTIMATE.start_main_~k~5), 11702#(<= 6 ULTIMATE.start_main_~k~5), 11703#(<= 7 ULTIMATE.start_main_~k~5), 11704#(<= 8 ULTIMATE.start_main_~k~5), 11705#(<= 9 ULTIMATE.start_main_~k~5), 11706#(<= 10 ULTIMATE.start_main_~k~5), 11707#(<= 11 ULTIMATE.start_main_~k~5), 11708#(<= 12 ULTIMATE.start_main_~k~5), 11709#(<= 13 ULTIMATE.start_main_~k~5), 11710#(<= 14 ULTIMATE.start_main_~k~5), 11711#(<= 15 ULTIMATE.start_main_~k~5)] [2018-07-23 13:40:57,693 INFO L134 CoverageAnalysis]: Checked inductivity of 852 backedges. 300 proven. 552 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:57,693 INFO L450 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-07-23 13:40:57,694 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-07-23 13:40:57,694 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=353, Invalid=403, Unknown=0, NotChecked=0, Total=756 [2018-07-23 13:40:57,694 INFO L87 Difference]: Start difference. First operand 76 states and 77 transitions. Second operand 28 states. [2018-07-23 13:40:57,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:40:57,784 INFO L93 Difference]: Finished difference Result 84 states and 85 transitions. [2018-07-23 13:40:57,784 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2018-07-23 13:40:57,784 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 75 [2018-07-23 13:40:57,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:40:57,785 INFO L225 Difference]: With dead ends: 84 [2018-07-23 13:40:57,785 INFO L226 Difference]: Without dead ends: 82 [2018-07-23 13:40:57,787 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 600 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1053, Invalid=1703, Unknown=0, NotChecked=0, Total=2756 [2018-07-23 13:40:57,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2018-07-23 13:40:57,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 78. [2018-07-23 13:40:57,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2018-07-23 13:40:57,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 79 transitions. [2018-07-23 13:40:57,798 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 79 transitions. Word has length 75 [2018-07-23 13:40:57,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:40:57,799 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 79 transitions. [2018-07-23 13:40:57,799 INFO L472 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-07-23 13:40:57,799 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 79 transitions. [2018-07-23 13:40:57,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-07-23 13:40:57,800 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:40:57,800 INFO L357 BasicCegarLoop]: trace histogram [25, 24, 24, 1, 1, 1, 1] [2018-07-23 13:40:57,800 INFO L414 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:40:57,800 INFO L82 PathProgramCache]: Analyzing trace with hash -314577797, now seen corresponding path program 47 times [2018-07-23 13:40:57,800 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:40:57,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:40:57,938 INFO L134 CoverageAnalysis]: Checked inductivity of 900 backedges. 600 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:57,938 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:40:57,939 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [51] total 51 [2018-07-23 13:40:57,939 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:40:57,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:57,939 INFO L185 omatonBuilderFactory]: Interpolants [12096#true, 12097#false, 12098#(<= ULTIMATE.start_main_~i~5 0), 12099#(<= ULTIMATE.start_main_~i~5 1), 12100#(<= ULTIMATE.start_main_~i~5 2), 12101#(<= ULTIMATE.start_main_~i~5 3), 12102#(<= ULTIMATE.start_main_~i~5 4), 12103#(<= ULTIMATE.start_main_~i~5 5), 12104#(<= ULTIMATE.start_main_~i~5 6), 12105#(<= ULTIMATE.start_main_~i~5 7), 12106#(<= ULTIMATE.start_main_~i~5 8), 12107#(<= ULTIMATE.start_main_~i~5 9), 12108#(<= ULTIMATE.start_main_~i~5 10), 12109#(<= ULTIMATE.start_main_~i~5 11), 12110#(<= ULTIMATE.start_main_~i~5 12), 12111#(<= ULTIMATE.start_main_~i~5 13), 12112#(<= ULTIMATE.start_main_~i~5 14), 12113#(<= ULTIMATE.start_main_~i~5 15), 12114#(<= ULTIMATE.start_main_~i~5 16), 12115#(<= ULTIMATE.start_main_~i~5 17), 12116#(<= ULTIMATE.start_main_~i~5 18), 12117#(<= ULTIMATE.start_main_~i~5 19), 12118#(<= ULTIMATE.start_main_~i~5 20), 12119#(<= ULTIMATE.start_main_~i~5 21), 12120#(<= ULTIMATE.start_main_~i~5 22), 12121#(<= ULTIMATE.start_main_~i~5 23), 12122#(<= ULTIMATE.start_main_~i~5 24), 12123#(<= ULTIMATE.start_main_~j~5 24), 12124#(<= ULTIMATE.start_main_~j~5 23), 12125#(<= ULTIMATE.start_main_~j~5 22), 12126#(<= ULTIMATE.start_main_~j~5 21), 12127#(<= ULTIMATE.start_main_~j~5 20), 12128#(<= ULTIMATE.start_main_~j~5 19), 12129#(<= ULTIMATE.start_main_~j~5 18), 12130#(<= ULTIMATE.start_main_~j~5 17), 12131#(<= ULTIMATE.start_main_~j~5 16), 12132#(<= ULTIMATE.start_main_~j~5 15), 12133#(<= ULTIMATE.start_main_~j~5 14), 12134#(<= ULTIMATE.start_main_~j~5 13), 12135#(<= ULTIMATE.start_main_~j~5 12), 12136#(<= ULTIMATE.start_main_~j~5 11), 12137#(<= ULTIMATE.start_main_~j~5 10), 12138#(<= ULTIMATE.start_main_~j~5 9), 12139#(<= ULTIMATE.start_main_~j~5 8), 12140#(<= ULTIMATE.start_main_~j~5 7), 12141#(<= ULTIMATE.start_main_~j~5 6), 12142#(<= ULTIMATE.start_main_~j~5 5), 12143#(<= ULTIMATE.start_main_~j~5 4), 12144#(<= ULTIMATE.start_main_~j~5 3), 12145#(<= ULTIMATE.start_main_~j~5 2), 12146#(<= ULTIMATE.start_main_~j~5 1), 12147#(<= ULTIMATE.start_main_~j~5 0)] [2018-07-23 13:40:57,940 INFO L134 CoverageAnalysis]: Checked inductivity of 900 backedges. 600 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:57,940 INFO L450 AbstractCegarLoop]: Interpolant automaton has 52 states [2018-07-23 13:40:57,940 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2018-07-23 13:40:57,941 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=701, Invalid=1951, Unknown=0, NotChecked=0, Total=2652 [2018-07-23 13:40:57,941 INFO L87 Difference]: Start difference. First operand 78 states and 79 transitions. Second operand 52 states. [2018-07-23 13:40:58,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:40:58,194 INFO L93 Difference]: Finished difference Result 132 states and 134 transitions. [2018-07-23 13:40:58,194 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2018-07-23 13:40:58,195 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 77 [2018-07-23 13:40:58,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:40:58,195 INFO L225 Difference]: With dead ends: 132 [2018-07-23 13:40:58,195 INFO L226 Difference]: Without dead ends: 79 [2018-07-23 13:40:58,197 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 876 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=1401, Invalid=4451, Unknown=0, NotChecked=0, Total=5852 [2018-07-23 13:40:58,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2018-07-23 13:40:58,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2018-07-23 13:40:58,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-07-23 13:40:58,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 80 transitions. [2018-07-23 13:40:58,208 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 80 transitions. Word has length 77 [2018-07-23 13:40:58,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:40:58,208 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 80 transitions. [2018-07-23 13:40:58,208 INFO L472 AbstractCegarLoop]: Interpolant automaton has 52 states. [2018-07-23 13:40:58,208 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 80 transitions. [2018-07-23 13:40:58,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-07-23 13:40:58,209 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:40:58,209 INFO L357 BasicCegarLoop]: trace histogram [25, 25, 24, 1, 1, 1, 1] [2018-07-23 13:40:58,209 INFO L414 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:40:58,210 INFO L82 PathProgramCache]: Analyzing trace with hash -546310750, now seen corresponding path program 48 times [2018-07-23 13:40:58,210 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:40:58,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:40:58,291 INFO L134 CoverageAnalysis]: Checked inductivity of 925 backedges. 325 proven. 600 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:58,291 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:40:58,291 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2018-07-23 13:40:58,291 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:40:58,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:58,292 INFO L185 omatonBuilderFactory]: Interpolants [12620#true, 12621#false, 12622#(<= 0 ULTIMATE.start_main_~k~5), 12623#(<= 1 ULTIMATE.start_main_~k~5), 12624#(<= 2 ULTIMATE.start_main_~k~5), 12625#(<= 3 ULTIMATE.start_main_~k~5), 12626#(<= 4 ULTIMATE.start_main_~k~5), 12627#(<= 5 ULTIMATE.start_main_~k~5), 12628#(<= 6 ULTIMATE.start_main_~k~5), 12629#(<= 7 ULTIMATE.start_main_~k~5), 12630#(<= 8 ULTIMATE.start_main_~k~5), 12631#(<= 9 ULTIMATE.start_main_~k~5), 12632#(<= 10 ULTIMATE.start_main_~k~5), 12633#(<= 11 ULTIMATE.start_main_~k~5), 12634#(<= 12 ULTIMATE.start_main_~k~5), 12635#(<= 13 ULTIMATE.start_main_~k~5), 12636#(<= 14 ULTIMATE.start_main_~k~5), 12637#(<= 15 ULTIMATE.start_main_~k~5), 12638#(<= 16 ULTIMATE.start_main_~k~5), 12639#(<= 17 ULTIMATE.start_main_~k~5), 12640#(<= 18 ULTIMATE.start_main_~k~5), 12641#(<= 19 ULTIMATE.start_main_~k~5), 12642#(<= 20 ULTIMATE.start_main_~k~5), 12643#(<= 21 ULTIMATE.start_main_~k~5), 12644#(<= 22 ULTIMATE.start_main_~k~5), 12645#(<= 23 ULTIMATE.start_main_~k~5), 12646#(<= 24 ULTIMATE.start_main_~k~5), 12647#(<= 25 ULTIMATE.start_main_~k~5), 12648#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond)] [2018-07-23 13:40:58,292 INFO L134 CoverageAnalysis]: Checked inductivity of 925 backedges. 325 proven. 600 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:58,292 INFO L450 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-07-23 13:40:58,293 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-07-23 13:40:58,293 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=380, Invalid=432, Unknown=0, NotChecked=0, Total=812 [2018-07-23 13:40:58,293 INFO L87 Difference]: Start difference. First operand 79 states and 80 transitions. Second operand 29 states. [2018-07-23 13:40:58,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:40:58,384 INFO L93 Difference]: Finished difference Result 87 states and 88 transitions. [2018-07-23 13:40:58,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2018-07-23 13:40:58,384 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 78 [2018-07-23 13:40:58,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:40:58,385 INFO L225 Difference]: With dead ends: 87 [2018-07-23 13:40:58,385 INFO L226 Difference]: Without dead ends: 85 [2018-07-23 13:40:58,386 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 650 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1134, Invalid=1836, Unknown=0, NotChecked=0, Total=2970 [2018-07-23 13:40:58,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-07-23 13:40:58,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 81. [2018-07-23 13:40:58,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2018-07-23 13:40:58,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 82 transitions. [2018-07-23 13:40:58,396 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 82 transitions. Word has length 78 [2018-07-23 13:40:58,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:40:58,397 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 82 transitions. [2018-07-23 13:40:58,397 INFO L472 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-07-23 13:40:58,397 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 82 transitions. [2018-07-23 13:40:58,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-07-23 13:40:58,398 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:40:58,398 INFO L357 BasicCegarLoop]: trace histogram [26, 25, 25, 1, 1, 1, 1] [2018-07-23 13:40:58,398 INFO L414 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:40:58,398 INFO L82 PathProgramCache]: Analyzing trace with hash -1018554614, now seen corresponding path program 49 times [2018-07-23 13:40:58,398 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:40:58,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:40:58,535 INFO L134 CoverageAnalysis]: Checked inductivity of 975 backedges. 650 proven. 325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:58,535 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:40:58,535 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [53] total 53 [2018-07-23 13:40:58,536 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:40:58,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:58,536 INFO L185 omatonBuilderFactory]: Interpolants [13056#(<= ULTIMATE.start_main_~i~5 17), 13057#(<= ULTIMATE.start_main_~i~5 18), 13058#(<= ULTIMATE.start_main_~i~5 19), 13059#(<= ULTIMATE.start_main_~i~5 20), 13060#(<= ULTIMATE.start_main_~i~5 21), 13061#(<= ULTIMATE.start_main_~i~5 22), 13062#(<= ULTIMATE.start_main_~i~5 23), 13063#(<= ULTIMATE.start_main_~i~5 24), 13064#(<= ULTIMATE.start_main_~i~5 25), 13065#(<= ULTIMATE.start_main_~j~5 25), 13066#(<= ULTIMATE.start_main_~j~5 24), 13067#(<= ULTIMATE.start_main_~j~5 23), 13068#(<= ULTIMATE.start_main_~j~5 22), 13069#(<= ULTIMATE.start_main_~j~5 21), 13070#(<= ULTIMATE.start_main_~j~5 20), 13071#(<= ULTIMATE.start_main_~j~5 19), 13072#(<= ULTIMATE.start_main_~j~5 18), 13073#(<= ULTIMATE.start_main_~j~5 17), 13074#(<= ULTIMATE.start_main_~j~5 16), 13075#(<= ULTIMATE.start_main_~j~5 15), 13076#(<= ULTIMATE.start_main_~j~5 14), 13077#(<= ULTIMATE.start_main_~j~5 13), 13078#(<= ULTIMATE.start_main_~j~5 12), 13079#(<= ULTIMATE.start_main_~j~5 11), 13080#(<= ULTIMATE.start_main_~j~5 10), 13081#(<= ULTIMATE.start_main_~j~5 9), 13082#(<= ULTIMATE.start_main_~j~5 8), 13083#(<= ULTIMATE.start_main_~j~5 7), 13084#(<= ULTIMATE.start_main_~j~5 6), 13085#(<= ULTIMATE.start_main_~j~5 5), 13086#(<= ULTIMATE.start_main_~j~5 4), 13087#(<= ULTIMATE.start_main_~j~5 3), 13088#(<= ULTIMATE.start_main_~j~5 2), 13089#(<= ULTIMATE.start_main_~j~5 1), 13090#(<= ULTIMATE.start_main_~j~5 0), 13037#true, 13038#false, 13039#(<= ULTIMATE.start_main_~i~5 0), 13040#(<= ULTIMATE.start_main_~i~5 1), 13041#(<= ULTIMATE.start_main_~i~5 2), 13042#(<= ULTIMATE.start_main_~i~5 3), 13043#(<= ULTIMATE.start_main_~i~5 4), 13044#(<= ULTIMATE.start_main_~i~5 5), 13045#(<= ULTIMATE.start_main_~i~5 6), 13046#(<= ULTIMATE.start_main_~i~5 7), 13047#(<= ULTIMATE.start_main_~i~5 8), 13048#(<= ULTIMATE.start_main_~i~5 9), 13049#(<= ULTIMATE.start_main_~i~5 10), 13050#(<= ULTIMATE.start_main_~i~5 11), 13051#(<= ULTIMATE.start_main_~i~5 12), 13052#(<= ULTIMATE.start_main_~i~5 13), 13053#(<= ULTIMATE.start_main_~i~5 14), 13054#(<= ULTIMATE.start_main_~i~5 15), 13055#(<= ULTIMATE.start_main_~i~5 16)] [2018-07-23 13:40:58,536 INFO L134 CoverageAnalysis]: Checked inductivity of 975 backedges. 650 proven. 325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:58,537 INFO L450 AbstractCegarLoop]: Interpolant automaton has 54 states [2018-07-23 13:40:58,537 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2018-07-23 13:40:58,537 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=755, Invalid=2107, Unknown=0, NotChecked=0, Total=2862 [2018-07-23 13:40:58,538 INFO L87 Difference]: Start difference. First operand 81 states and 82 transitions. Second operand 54 states. [2018-07-23 13:40:58,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:40:58,718 INFO L93 Difference]: Finished difference Result 137 states and 139 transitions. [2018-07-23 13:40:58,718 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2018-07-23 13:40:58,718 INFO L78 Accepts]: Start accepts. Automaton has 54 states. Word has length 80 [2018-07-23 13:40:58,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:40:58,719 INFO L225 Difference]: With dead ends: 137 [2018-07-23 13:40:58,719 INFO L226 Difference]: Without dead ends: 82 [2018-07-23 13:40:58,720 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 950 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=1509, Invalid=4811, Unknown=0, NotChecked=0, Total=6320 [2018-07-23 13:40:58,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2018-07-23 13:40:58,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2018-07-23 13:40:58,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-07-23 13:40:58,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 83 transitions. [2018-07-23 13:40:58,731 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 83 transitions. Word has length 80 [2018-07-23 13:40:58,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:40:58,731 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 83 transitions. [2018-07-23 13:40:58,732 INFO L472 AbstractCegarLoop]: Interpolant automaton has 54 states. [2018-07-23 13:40:58,732 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 83 transitions. [2018-07-23 13:40:58,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-07-23 13:40:58,732 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:40:58,733 INFO L357 BasicCegarLoop]: trace histogram [26, 26, 25, 1, 1, 1, 1] [2018-07-23 13:40:58,733 INFO L414 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:40:58,733 INFO L82 PathProgramCache]: Analyzing trace with hash 1732454531, now seen corresponding path program 50 times [2018-07-23 13:40:58,733 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:40:58,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:40:58,819 INFO L134 CoverageAnalysis]: Checked inductivity of 1001 backedges. 351 proven. 650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:58,819 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:40:58,820 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2018-07-23 13:40:58,820 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:40:58,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:58,820 INFO L185 omatonBuilderFactory]: Interpolants [13581#true, 13582#false, 13583#(<= 0 ULTIMATE.start_main_~k~5), 13584#(<= 1 ULTIMATE.start_main_~k~5), 13585#(<= 2 ULTIMATE.start_main_~k~5), 13586#(<= 3 ULTIMATE.start_main_~k~5), 13587#(<= 4 ULTIMATE.start_main_~k~5), 13588#(<= 5 ULTIMATE.start_main_~k~5), 13589#(<= 6 ULTIMATE.start_main_~k~5), 13590#(<= 7 ULTIMATE.start_main_~k~5), 13591#(<= 8 ULTIMATE.start_main_~k~5), 13592#(<= 9 ULTIMATE.start_main_~k~5), 13593#(<= 10 ULTIMATE.start_main_~k~5), 13594#(<= 11 ULTIMATE.start_main_~k~5), 13595#(<= 12 ULTIMATE.start_main_~k~5), 13596#(<= 13 ULTIMATE.start_main_~k~5), 13597#(<= 14 ULTIMATE.start_main_~k~5), 13598#(<= 15 ULTIMATE.start_main_~k~5), 13599#(<= 16 ULTIMATE.start_main_~k~5), 13600#(<= 17 ULTIMATE.start_main_~k~5), 13601#(<= 18 ULTIMATE.start_main_~k~5), 13602#(<= 19 ULTIMATE.start_main_~k~5), 13603#(<= 20 ULTIMATE.start_main_~k~5), 13604#(<= 21 ULTIMATE.start_main_~k~5), 13605#(<= 22 ULTIMATE.start_main_~k~5), 13606#(<= 23 ULTIMATE.start_main_~k~5), 13607#(<= 24 ULTIMATE.start_main_~k~5), 13608#(<= 25 ULTIMATE.start_main_~k~5), 13609#(<= 26 ULTIMATE.start_main_~k~5), 13610#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond)] [2018-07-23 13:40:58,821 INFO L134 CoverageAnalysis]: Checked inductivity of 1001 backedges. 351 proven. 650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:58,821 INFO L450 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-07-23 13:40:58,821 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-07-23 13:40:58,821 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=408, Invalid=462, Unknown=0, NotChecked=0, Total=870 [2018-07-23 13:40:58,822 INFO L87 Difference]: Start difference. First operand 82 states and 83 transitions. Second operand 30 states. [2018-07-23 13:40:58,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:40:58,918 INFO L93 Difference]: Finished difference Result 90 states and 91 transitions. [2018-07-23 13:40:58,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2018-07-23 13:40:58,919 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 81 [2018-07-23 13:40:58,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:40:58,919 INFO L225 Difference]: With dead ends: 90 [2018-07-23 13:40:58,920 INFO L226 Difference]: Without dead ends: 88 [2018-07-23 13:40:58,920 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 702 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1218, Invalid=1974, Unknown=0, NotChecked=0, Total=3192 [2018-07-23 13:40:58,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2018-07-23 13:40:58,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 84. [2018-07-23 13:40:58,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2018-07-23 13:40:58,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 85 transitions. [2018-07-23 13:40:58,932 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 85 transitions. Word has length 81 [2018-07-23 13:40:58,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:40:58,932 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 85 transitions. [2018-07-23 13:40:58,932 INFO L472 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-07-23 13:40:58,932 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 85 transitions. [2018-07-23 13:40:58,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-07-23 13:40:58,933 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:40:58,933 INFO L357 BasicCegarLoop]: trace histogram [27, 26, 26, 1, 1, 1, 1] [2018-07-23 13:40:58,933 INFO L414 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:40:58,934 INFO L82 PathProgramCache]: Analyzing trace with hash -1558440533, now seen corresponding path program 51 times [2018-07-23 13:40:58,934 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:40:58,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:40:59,070 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 702 proven. 351 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:59,071 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:40:59,071 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [55] total 55 [2018-07-23 13:40:59,071 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:40:59,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:59,072 INFO L185 omatonBuilderFactory]: Interpolants [14013#true, 14014#false, 14015#(<= ULTIMATE.start_main_~i~5 0), 14016#(<= ULTIMATE.start_main_~i~5 1), 14017#(<= ULTIMATE.start_main_~i~5 2), 14018#(<= ULTIMATE.start_main_~i~5 3), 14019#(<= ULTIMATE.start_main_~i~5 4), 14020#(<= ULTIMATE.start_main_~i~5 5), 14021#(<= ULTIMATE.start_main_~i~5 6), 14022#(<= ULTIMATE.start_main_~i~5 7), 14023#(<= ULTIMATE.start_main_~i~5 8), 14024#(<= ULTIMATE.start_main_~i~5 9), 14025#(<= ULTIMATE.start_main_~i~5 10), 14026#(<= ULTIMATE.start_main_~i~5 11), 14027#(<= ULTIMATE.start_main_~i~5 12), 14028#(<= ULTIMATE.start_main_~i~5 13), 14029#(<= ULTIMATE.start_main_~i~5 14), 14030#(<= ULTIMATE.start_main_~i~5 15), 14031#(<= ULTIMATE.start_main_~i~5 16), 14032#(<= ULTIMATE.start_main_~i~5 17), 14033#(<= ULTIMATE.start_main_~i~5 18), 14034#(<= ULTIMATE.start_main_~i~5 19), 14035#(<= ULTIMATE.start_main_~i~5 20), 14036#(<= ULTIMATE.start_main_~i~5 21), 14037#(<= ULTIMATE.start_main_~i~5 22), 14038#(<= ULTIMATE.start_main_~i~5 23), 14039#(<= ULTIMATE.start_main_~i~5 24), 14040#(<= ULTIMATE.start_main_~i~5 25), 14041#(<= ULTIMATE.start_main_~i~5 26), 14042#(<= ULTIMATE.start_main_~j~5 26), 14043#(<= ULTIMATE.start_main_~j~5 25), 14044#(<= ULTIMATE.start_main_~j~5 24), 14045#(<= ULTIMATE.start_main_~j~5 23), 14046#(<= ULTIMATE.start_main_~j~5 22), 14047#(<= ULTIMATE.start_main_~j~5 21), 14048#(<= ULTIMATE.start_main_~j~5 20), 14049#(<= ULTIMATE.start_main_~j~5 19), 14050#(<= ULTIMATE.start_main_~j~5 18), 14051#(<= ULTIMATE.start_main_~j~5 17), 14052#(<= ULTIMATE.start_main_~j~5 16), 14053#(<= ULTIMATE.start_main_~j~5 15), 14054#(<= ULTIMATE.start_main_~j~5 14), 14055#(<= ULTIMATE.start_main_~j~5 13), 14056#(<= ULTIMATE.start_main_~j~5 12), 14057#(<= ULTIMATE.start_main_~j~5 11), 14058#(<= ULTIMATE.start_main_~j~5 10), 14059#(<= ULTIMATE.start_main_~j~5 9), 14060#(<= ULTIMATE.start_main_~j~5 8), 14061#(<= ULTIMATE.start_main_~j~5 7), 14062#(<= ULTIMATE.start_main_~j~5 6), 14063#(<= ULTIMATE.start_main_~j~5 5), 14064#(<= ULTIMATE.start_main_~j~5 4), 14065#(<= ULTIMATE.start_main_~j~5 3), 14066#(<= ULTIMATE.start_main_~j~5 2), 14067#(<= ULTIMATE.start_main_~j~5 1), 14068#(<= ULTIMATE.start_main_~j~5 0)] [2018-07-23 13:40:59,072 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 702 proven. 351 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:59,072 INFO L450 AbstractCegarLoop]: Interpolant automaton has 56 states [2018-07-23 13:40:59,072 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2018-07-23 13:40:59,073 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=811, Invalid=2269, Unknown=0, NotChecked=0, Total=3080 [2018-07-23 13:40:59,073 INFO L87 Difference]: Start difference. First operand 84 states and 85 transitions. Second operand 56 states. [2018-07-23 13:40:59,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:40:59,353 INFO L93 Difference]: Finished difference Result 142 states and 144 transitions. [2018-07-23 13:40:59,353 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2018-07-23 13:40:59,353 INFO L78 Accepts]: Start accepts. Automaton has 56 states. Word has length 83 [2018-07-23 13:40:59,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:40:59,354 INFO L225 Difference]: With dead ends: 142 [2018-07-23 13:40:59,354 INFO L226 Difference]: Without dead ends: 85 [2018-07-23 13:40:59,355 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1027 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=1621, Invalid=5185, Unknown=0, NotChecked=0, Total=6806 [2018-07-23 13:40:59,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-07-23 13:40:59,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2018-07-23 13:40:59,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-07-23 13:40:59,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 86 transitions. [2018-07-23 13:40:59,366 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 86 transitions. Word has length 83 [2018-07-23 13:40:59,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:40:59,367 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 86 transitions. [2018-07-23 13:40:59,367 INFO L472 AbstractCegarLoop]: Interpolant automaton has 56 states. [2018-07-23 13:40:59,367 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 86 transitions. [2018-07-23 13:40:59,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-07-23 13:40:59,368 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:40:59,368 INFO L357 BasicCegarLoop]: trace histogram [27, 27, 26, 1, 1, 1, 1] [2018-07-23 13:40:59,368 INFO L414 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:40:59,368 INFO L82 PathProgramCache]: Analyzing trace with hash 1484023186, now seen corresponding path program 52 times [2018-07-23 13:40:59,368 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:40:59,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:40:59,485 INFO L134 CoverageAnalysis]: Checked inductivity of 1080 backedges. 378 proven. 702 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:59,485 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:40:59,485 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2018-07-23 13:40:59,486 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:40:59,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:59,486 INFO L185 omatonBuilderFactory]: Interpolants [14592#(<= 13 ULTIMATE.start_main_~k~5), 14593#(<= 14 ULTIMATE.start_main_~k~5), 14594#(<= 15 ULTIMATE.start_main_~k~5), 14595#(<= 16 ULTIMATE.start_main_~k~5), 14596#(<= 17 ULTIMATE.start_main_~k~5), 14597#(<= 18 ULTIMATE.start_main_~k~5), 14598#(<= 19 ULTIMATE.start_main_~k~5), 14599#(<= 20 ULTIMATE.start_main_~k~5), 14600#(<= 21 ULTIMATE.start_main_~k~5), 14601#(<= 22 ULTIMATE.start_main_~k~5), 14602#(<= 23 ULTIMATE.start_main_~k~5), 14603#(<= 24 ULTIMATE.start_main_~k~5), 14604#(<= 25 ULTIMATE.start_main_~k~5), 14605#(<= 26 ULTIMATE.start_main_~k~5), 14606#(<= 27 ULTIMATE.start_main_~k~5), 14607#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 14577#true, 14578#false, 14579#(<= 0 ULTIMATE.start_main_~k~5), 14580#(<= 1 ULTIMATE.start_main_~k~5), 14581#(<= 2 ULTIMATE.start_main_~k~5), 14582#(<= 3 ULTIMATE.start_main_~k~5), 14583#(<= 4 ULTIMATE.start_main_~k~5), 14584#(<= 5 ULTIMATE.start_main_~k~5), 14585#(<= 6 ULTIMATE.start_main_~k~5), 14586#(<= 7 ULTIMATE.start_main_~k~5), 14587#(<= 8 ULTIMATE.start_main_~k~5), 14588#(<= 9 ULTIMATE.start_main_~k~5), 14589#(<= 10 ULTIMATE.start_main_~k~5), 14590#(<= 11 ULTIMATE.start_main_~k~5), 14591#(<= 12 ULTIMATE.start_main_~k~5)] [2018-07-23 13:40:59,486 INFO L134 CoverageAnalysis]: Checked inductivity of 1080 backedges. 378 proven. 702 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:59,487 INFO L450 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-07-23 13:40:59,487 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-07-23 13:40:59,487 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=437, Invalid=493, Unknown=0, NotChecked=0, Total=930 [2018-07-23 13:40:59,487 INFO L87 Difference]: Start difference. First operand 85 states and 86 transitions. Second operand 31 states. [2018-07-23 13:40:59,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:40:59,600 INFO L93 Difference]: Finished difference Result 93 states and 94 transitions. [2018-07-23 13:40:59,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2018-07-23 13:40:59,600 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 84 [2018-07-23 13:40:59,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:40:59,601 INFO L225 Difference]: With dead ends: 93 [2018-07-23 13:40:59,601 INFO L226 Difference]: Without dead ends: 91 [2018-07-23 13:40:59,602 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 756 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1305, Invalid=2117, Unknown=0, NotChecked=0, Total=3422 [2018-07-23 13:40:59,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2018-07-23 13:40:59,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 87. [2018-07-23 13:40:59,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2018-07-23 13:40:59,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 88 transitions. [2018-07-23 13:40:59,614 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 88 transitions. Word has length 84 [2018-07-23 13:40:59,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:40:59,614 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 88 transitions. [2018-07-23 13:40:59,614 INFO L472 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-07-23 13:40:59,614 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 88 transitions. [2018-07-23 13:40:59,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-07-23 13:40:59,615 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:40:59,615 INFO L357 BasicCegarLoop]: trace histogram [28, 27, 27, 1, 1, 1, 1] [2018-07-23 13:40:59,615 INFO L414 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:40:59,616 INFO L82 PathProgramCache]: Analyzing trace with hash 217205498, now seen corresponding path program 53 times [2018-07-23 13:40:59,616 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:40:59,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:40:59,783 INFO L134 CoverageAnalysis]: Checked inductivity of 1134 backedges. 756 proven. 378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:59,783 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:40:59,783 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [57] total 57 [2018-07-23 13:40:59,784 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:40:59,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:59,784 INFO L185 omatonBuilderFactory]: Interpolants [15024#true, 15025#false, 15026#(<= ULTIMATE.start_main_~i~5 0), 15027#(<= ULTIMATE.start_main_~i~5 1), 15028#(<= ULTIMATE.start_main_~i~5 2), 15029#(<= ULTIMATE.start_main_~i~5 3), 15030#(<= ULTIMATE.start_main_~i~5 4), 15031#(<= ULTIMATE.start_main_~i~5 5), 15032#(<= ULTIMATE.start_main_~i~5 6), 15033#(<= ULTIMATE.start_main_~i~5 7), 15034#(<= ULTIMATE.start_main_~i~5 8), 15035#(<= ULTIMATE.start_main_~i~5 9), 15036#(<= ULTIMATE.start_main_~i~5 10), 15037#(<= ULTIMATE.start_main_~i~5 11), 15038#(<= ULTIMATE.start_main_~i~5 12), 15039#(<= ULTIMATE.start_main_~i~5 13), 15040#(<= ULTIMATE.start_main_~i~5 14), 15041#(<= ULTIMATE.start_main_~i~5 15), 15042#(<= ULTIMATE.start_main_~i~5 16), 15043#(<= ULTIMATE.start_main_~i~5 17), 15044#(<= ULTIMATE.start_main_~i~5 18), 15045#(<= ULTIMATE.start_main_~i~5 19), 15046#(<= ULTIMATE.start_main_~i~5 20), 15047#(<= ULTIMATE.start_main_~i~5 21), 15048#(<= ULTIMATE.start_main_~i~5 22), 15049#(<= ULTIMATE.start_main_~i~5 23), 15050#(<= ULTIMATE.start_main_~i~5 24), 15051#(<= ULTIMATE.start_main_~i~5 25), 15052#(<= ULTIMATE.start_main_~i~5 26), 15053#(<= ULTIMATE.start_main_~i~5 27), 15054#(<= ULTIMATE.start_main_~j~5 27), 15055#(<= ULTIMATE.start_main_~j~5 26), 15056#(<= ULTIMATE.start_main_~j~5 25), 15057#(<= ULTIMATE.start_main_~j~5 24), 15058#(<= ULTIMATE.start_main_~j~5 23), 15059#(<= ULTIMATE.start_main_~j~5 22), 15060#(<= ULTIMATE.start_main_~j~5 21), 15061#(<= ULTIMATE.start_main_~j~5 20), 15062#(<= ULTIMATE.start_main_~j~5 19), 15063#(<= ULTIMATE.start_main_~j~5 18), 15064#(<= ULTIMATE.start_main_~j~5 17), 15065#(<= ULTIMATE.start_main_~j~5 16), 15066#(<= ULTIMATE.start_main_~j~5 15), 15067#(<= ULTIMATE.start_main_~j~5 14), 15068#(<= ULTIMATE.start_main_~j~5 13), 15069#(<= ULTIMATE.start_main_~j~5 12), 15070#(<= ULTIMATE.start_main_~j~5 11), 15071#(<= ULTIMATE.start_main_~j~5 10), 15072#(<= ULTIMATE.start_main_~j~5 9), 15073#(<= ULTIMATE.start_main_~j~5 8), 15074#(<= ULTIMATE.start_main_~j~5 7), 15075#(<= ULTIMATE.start_main_~j~5 6), 15076#(<= ULTIMATE.start_main_~j~5 5), 15077#(<= ULTIMATE.start_main_~j~5 4), 15078#(<= ULTIMATE.start_main_~j~5 3), 15079#(<= ULTIMATE.start_main_~j~5 2), 15080#(<= ULTIMATE.start_main_~j~5 1), 15081#(<= ULTIMATE.start_main_~j~5 0)] [2018-07-23 13:40:59,785 INFO L134 CoverageAnalysis]: Checked inductivity of 1134 backedges. 756 proven. 378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:40:59,785 INFO L450 AbstractCegarLoop]: Interpolant automaton has 58 states [2018-07-23 13:40:59,785 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2018-07-23 13:40:59,786 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=869, Invalid=2437, Unknown=0, NotChecked=0, Total=3306 [2018-07-23 13:40:59,786 INFO L87 Difference]: Start difference. First operand 87 states and 88 transitions. Second operand 58 states. [2018-07-23 13:41:00,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:00,147 INFO L93 Difference]: Finished difference Result 147 states and 149 transitions. [2018-07-23 13:41:00,147 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2018-07-23 13:41:00,148 INFO L78 Accepts]: Start accepts. Automaton has 58 states. Word has length 86 [2018-07-23 13:41:00,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:00,149 INFO L225 Difference]: With dead ends: 147 [2018-07-23 13:41:00,149 INFO L226 Difference]: Without dead ends: 88 [2018-07-23 13:41:00,150 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=1737, Invalid=5573, Unknown=0, NotChecked=0, Total=7310 [2018-07-23 13:41:00,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2018-07-23 13:41:00,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2018-07-23 13:41:00,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2018-07-23 13:41:00,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 89 transitions. [2018-07-23 13:41:00,166 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 89 transitions. Word has length 86 [2018-07-23 13:41:00,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:00,166 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 89 transitions. [2018-07-23 13:41:00,166 INFO L472 AbstractCegarLoop]: Interpolant automaton has 58 states. [2018-07-23 13:41:00,166 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 89 transitions. [2018-07-23 13:41:00,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-07-23 13:41:00,167 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:00,167 INFO L357 BasicCegarLoop]: trace histogram [28, 28, 27, 1, 1, 1, 1] [2018-07-23 13:41:00,168 INFO L414 AbstractCegarLoop]: === Iteration 56 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:00,168 INFO L82 PathProgramCache]: Analyzing trace with hash 1559010739, now seen corresponding path program 54 times [2018-07-23 13:41:00,168 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:00,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:00,310 INFO L134 CoverageAnalysis]: Checked inductivity of 1162 backedges. 406 proven. 756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:00,310 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:00,311 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2018-07-23 13:41:00,311 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:00,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:00,312 INFO L185 omatonBuilderFactory]: Interpolants [15616#(<= 6 ULTIMATE.start_main_~k~5), 15617#(<= 7 ULTIMATE.start_main_~k~5), 15618#(<= 8 ULTIMATE.start_main_~k~5), 15619#(<= 9 ULTIMATE.start_main_~k~5), 15620#(<= 10 ULTIMATE.start_main_~k~5), 15621#(<= 11 ULTIMATE.start_main_~k~5), 15622#(<= 12 ULTIMATE.start_main_~k~5), 15623#(<= 13 ULTIMATE.start_main_~k~5), 15624#(<= 14 ULTIMATE.start_main_~k~5), 15625#(<= 15 ULTIMATE.start_main_~k~5), 15626#(<= 16 ULTIMATE.start_main_~k~5), 15627#(<= 17 ULTIMATE.start_main_~k~5), 15628#(<= 18 ULTIMATE.start_main_~k~5), 15629#(<= 19 ULTIMATE.start_main_~k~5), 15630#(<= 20 ULTIMATE.start_main_~k~5), 15631#(<= 21 ULTIMATE.start_main_~k~5), 15632#(<= 22 ULTIMATE.start_main_~k~5), 15633#(<= 23 ULTIMATE.start_main_~k~5), 15634#(<= 24 ULTIMATE.start_main_~k~5), 15635#(<= 25 ULTIMATE.start_main_~k~5), 15636#(<= 26 ULTIMATE.start_main_~k~5), 15637#(<= 27 ULTIMATE.start_main_~k~5), 15638#(<= 28 ULTIMATE.start_main_~k~5), 15639#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 15608#true, 15609#false, 15610#(<= 0 ULTIMATE.start_main_~k~5), 15611#(<= 1 ULTIMATE.start_main_~k~5), 15612#(<= 2 ULTIMATE.start_main_~k~5), 15613#(<= 3 ULTIMATE.start_main_~k~5), 15614#(<= 4 ULTIMATE.start_main_~k~5), 15615#(<= 5 ULTIMATE.start_main_~k~5)] [2018-07-23 13:41:00,312 INFO L134 CoverageAnalysis]: Checked inductivity of 1162 backedges. 406 proven. 756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:00,312 INFO L450 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-07-23 13:41:00,313 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-07-23 13:41:00,313 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=467, Invalid=525, Unknown=0, NotChecked=0, Total=992 [2018-07-23 13:41:00,313 INFO L87 Difference]: Start difference. First operand 88 states and 89 transitions. Second operand 32 states. [2018-07-23 13:41:00,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:00,491 INFO L93 Difference]: Finished difference Result 96 states and 97 transitions. [2018-07-23 13:41:00,491 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2018-07-23 13:41:00,492 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 87 [2018-07-23 13:41:00,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:00,492 INFO L225 Difference]: With dead ends: 96 [2018-07-23 13:41:00,493 INFO L226 Difference]: Without dead ends: 94 [2018-07-23 13:41:00,493 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 812 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=1395, Invalid=2265, Unknown=0, NotChecked=0, Total=3660 [2018-07-23 13:41:00,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2018-07-23 13:41:00,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 90. [2018-07-23 13:41:00,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2018-07-23 13:41:00,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 91 transitions. [2018-07-23 13:41:00,506 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 91 transitions. Word has length 87 [2018-07-23 13:41:00,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:00,506 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 91 transitions. [2018-07-23 13:41:00,506 INFO L472 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-07-23 13:41:00,507 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 91 transitions. [2018-07-23 13:41:00,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-07-23 13:41:00,507 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:00,507 INFO L357 BasicCegarLoop]: trace histogram [29, 28, 28, 1, 1, 1, 1] [2018-07-23 13:41:00,508 INFO L414 AbstractCegarLoop]: === Iteration 57 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:00,508 INFO L82 PathProgramCache]: Analyzing trace with hash -734200101, now seen corresponding path program 55 times [2018-07-23 13:41:00,508 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:00,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:00,658 INFO L134 CoverageAnalysis]: Checked inductivity of 1218 backedges. 812 proven. 406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:00,659 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:00,659 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [59] total 59 [2018-07-23 13:41:00,659 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:00,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:00,660 INFO L185 omatonBuilderFactory]: Interpolants [16128#(<= ULTIMATE.start_main_~j~5 1), 16129#(<= ULTIMATE.start_main_~j~5 0), 16070#true, 16071#false, 16072#(<= ULTIMATE.start_main_~i~5 0), 16073#(<= ULTIMATE.start_main_~i~5 1), 16074#(<= ULTIMATE.start_main_~i~5 2), 16075#(<= ULTIMATE.start_main_~i~5 3), 16076#(<= ULTIMATE.start_main_~i~5 4), 16077#(<= ULTIMATE.start_main_~i~5 5), 16078#(<= ULTIMATE.start_main_~i~5 6), 16079#(<= ULTIMATE.start_main_~i~5 7), 16080#(<= ULTIMATE.start_main_~i~5 8), 16081#(<= ULTIMATE.start_main_~i~5 9), 16082#(<= ULTIMATE.start_main_~i~5 10), 16083#(<= ULTIMATE.start_main_~i~5 11), 16084#(<= ULTIMATE.start_main_~i~5 12), 16085#(<= ULTIMATE.start_main_~i~5 13), 16086#(<= ULTIMATE.start_main_~i~5 14), 16087#(<= ULTIMATE.start_main_~i~5 15), 16088#(<= ULTIMATE.start_main_~i~5 16), 16089#(<= ULTIMATE.start_main_~i~5 17), 16090#(<= ULTIMATE.start_main_~i~5 18), 16091#(<= ULTIMATE.start_main_~i~5 19), 16092#(<= ULTIMATE.start_main_~i~5 20), 16093#(<= ULTIMATE.start_main_~i~5 21), 16094#(<= ULTIMATE.start_main_~i~5 22), 16095#(<= ULTIMATE.start_main_~i~5 23), 16096#(<= ULTIMATE.start_main_~i~5 24), 16097#(<= ULTIMATE.start_main_~i~5 25), 16098#(<= ULTIMATE.start_main_~i~5 26), 16099#(<= ULTIMATE.start_main_~i~5 27), 16100#(<= ULTIMATE.start_main_~i~5 28), 16101#(<= ULTIMATE.start_main_~j~5 28), 16102#(<= ULTIMATE.start_main_~j~5 27), 16103#(<= ULTIMATE.start_main_~j~5 26), 16104#(<= ULTIMATE.start_main_~j~5 25), 16105#(<= ULTIMATE.start_main_~j~5 24), 16106#(<= ULTIMATE.start_main_~j~5 23), 16107#(<= ULTIMATE.start_main_~j~5 22), 16108#(<= ULTIMATE.start_main_~j~5 21), 16109#(<= ULTIMATE.start_main_~j~5 20), 16110#(<= ULTIMATE.start_main_~j~5 19), 16111#(<= ULTIMATE.start_main_~j~5 18), 16112#(<= ULTIMATE.start_main_~j~5 17), 16113#(<= ULTIMATE.start_main_~j~5 16), 16114#(<= ULTIMATE.start_main_~j~5 15), 16115#(<= ULTIMATE.start_main_~j~5 14), 16116#(<= ULTIMATE.start_main_~j~5 13), 16117#(<= ULTIMATE.start_main_~j~5 12), 16118#(<= ULTIMATE.start_main_~j~5 11), 16119#(<= ULTIMATE.start_main_~j~5 10), 16120#(<= ULTIMATE.start_main_~j~5 9), 16121#(<= ULTIMATE.start_main_~j~5 8), 16122#(<= ULTIMATE.start_main_~j~5 7), 16123#(<= ULTIMATE.start_main_~j~5 6), 16124#(<= ULTIMATE.start_main_~j~5 5), 16125#(<= ULTIMATE.start_main_~j~5 4), 16126#(<= ULTIMATE.start_main_~j~5 3), 16127#(<= ULTIMATE.start_main_~j~5 2)] [2018-07-23 13:41:00,660 INFO L134 CoverageAnalysis]: Checked inductivity of 1218 backedges. 812 proven. 406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:00,660 INFO L450 AbstractCegarLoop]: Interpolant automaton has 60 states [2018-07-23 13:41:00,661 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2018-07-23 13:41:00,661 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=929, Invalid=2611, Unknown=0, NotChecked=0, Total=3540 [2018-07-23 13:41:00,661 INFO L87 Difference]: Start difference. First operand 90 states and 91 transitions. Second operand 60 states. [2018-07-23 13:41:00,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:00,989 INFO L93 Difference]: Finished difference Result 152 states and 154 transitions. [2018-07-23 13:41:00,989 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2018-07-23 13:41:00,989 INFO L78 Accepts]: Start accepts. Automaton has 60 states. Word has length 89 [2018-07-23 13:41:00,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:00,990 INFO L225 Difference]: With dead ends: 152 [2018-07-23 13:41:00,991 INFO L226 Difference]: Without dead ends: 91 [2018-07-23 13:41:00,992 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1190 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=1857, Invalid=5975, Unknown=0, NotChecked=0, Total=7832 [2018-07-23 13:41:00,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2018-07-23 13:41:01,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2018-07-23 13:41:01,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2018-07-23 13:41:01,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 92 transitions. [2018-07-23 13:41:01,003 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 92 transitions. Word has length 89 [2018-07-23 13:41:01,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:01,004 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 92 transitions. [2018-07-23 13:41:01,004 INFO L472 AbstractCegarLoop]: Interpolant automaton has 60 states. [2018-07-23 13:41:01,004 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 92 transitions. [2018-07-23 13:41:01,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-07-23 13:41:01,005 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:01,005 INFO L357 BasicCegarLoop]: trace histogram [29, 29, 28, 1, 1, 1, 1] [2018-07-23 13:41:01,005 INFO L414 AbstractCegarLoop]: === Iteration 58 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:01,005 INFO L82 PathProgramCache]: Analyzing trace with hash -274889342, now seen corresponding path program 56 times [2018-07-23 13:41:01,006 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:01,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:01,110 INFO L134 CoverageAnalysis]: Checked inductivity of 1247 backedges. 435 proven. 812 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:01,110 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:01,110 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2018-07-23 13:41:01,111 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:01,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:01,111 INFO L185 omatonBuilderFactory]: Interpolants [16704#(<= 28 ULTIMATE.start_main_~k~5), 16705#(<= 29 ULTIMATE.start_main_~k~5), 16706#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 16674#true, 16675#false, 16676#(<= 0 ULTIMATE.start_main_~k~5), 16677#(<= 1 ULTIMATE.start_main_~k~5), 16678#(<= 2 ULTIMATE.start_main_~k~5), 16679#(<= 3 ULTIMATE.start_main_~k~5), 16680#(<= 4 ULTIMATE.start_main_~k~5), 16681#(<= 5 ULTIMATE.start_main_~k~5), 16682#(<= 6 ULTIMATE.start_main_~k~5), 16683#(<= 7 ULTIMATE.start_main_~k~5), 16684#(<= 8 ULTIMATE.start_main_~k~5), 16685#(<= 9 ULTIMATE.start_main_~k~5), 16686#(<= 10 ULTIMATE.start_main_~k~5), 16687#(<= 11 ULTIMATE.start_main_~k~5), 16688#(<= 12 ULTIMATE.start_main_~k~5), 16689#(<= 13 ULTIMATE.start_main_~k~5), 16690#(<= 14 ULTIMATE.start_main_~k~5), 16691#(<= 15 ULTIMATE.start_main_~k~5), 16692#(<= 16 ULTIMATE.start_main_~k~5), 16693#(<= 17 ULTIMATE.start_main_~k~5), 16694#(<= 18 ULTIMATE.start_main_~k~5), 16695#(<= 19 ULTIMATE.start_main_~k~5), 16696#(<= 20 ULTIMATE.start_main_~k~5), 16697#(<= 21 ULTIMATE.start_main_~k~5), 16698#(<= 22 ULTIMATE.start_main_~k~5), 16699#(<= 23 ULTIMATE.start_main_~k~5), 16700#(<= 24 ULTIMATE.start_main_~k~5), 16701#(<= 25 ULTIMATE.start_main_~k~5), 16702#(<= 26 ULTIMATE.start_main_~k~5), 16703#(<= 27 ULTIMATE.start_main_~k~5)] [2018-07-23 13:41:01,111 INFO L134 CoverageAnalysis]: Checked inductivity of 1247 backedges. 435 proven. 812 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:01,112 INFO L450 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-07-23 13:41:01,112 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-07-23 13:41:01,112 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=498, Invalid=558, Unknown=0, NotChecked=0, Total=1056 [2018-07-23 13:41:01,112 INFO L87 Difference]: Start difference. First operand 91 states and 92 transitions. Second operand 33 states. [2018-07-23 13:41:01,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:01,225 INFO L93 Difference]: Finished difference Result 99 states and 100 transitions. [2018-07-23 13:41:01,225 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2018-07-23 13:41:01,225 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 90 [2018-07-23 13:41:01,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:01,226 INFO L225 Difference]: With dead ends: 99 [2018-07-23 13:41:01,226 INFO L226 Difference]: Without dead ends: 97 [2018-07-23 13:41:01,227 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 870 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1488, Invalid=2418, Unknown=0, NotChecked=0, Total=3906 [2018-07-23 13:41:01,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2018-07-23 13:41:01,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 93. [2018-07-23 13:41:01,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2018-07-23 13:41:01,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 94 transitions. [2018-07-23 13:41:01,239 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 94 transitions. Word has length 90 [2018-07-23 13:41:01,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:01,240 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 94 transitions. [2018-07-23 13:41:01,240 INFO L472 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-07-23 13:41:01,240 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 94 transitions. [2018-07-23 13:41:01,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-07-23 13:41:01,241 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:01,241 INFO L357 BasicCegarLoop]: trace histogram [30, 29, 29, 1, 1, 1, 1] [2018-07-23 13:41:01,241 INFO L414 AbstractCegarLoop]: === Iteration 59 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:01,241 INFO L82 PathProgramCache]: Analyzing trace with hash 2119380714, now seen corresponding path program 57 times [2018-07-23 13:41:01,242 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:01,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:01,406 INFO L134 CoverageAnalysis]: Checked inductivity of 1305 backedges. 870 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:01,406 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:01,406 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [61] total 61 [2018-07-23 13:41:01,406 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:01,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:01,407 INFO L185 omatonBuilderFactory]: Interpolants [17152#false, 17153#(<= ULTIMATE.start_main_~i~5 0), 17154#(<= ULTIMATE.start_main_~i~5 1), 17155#(<= ULTIMATE.start_main_~i~5 2), 17156#(<= ULTIMATE.start_main_~i~5 3), 17157#(<= ULTIMATE.start_main_~i~5 4), 17158#(<= ULTIMATE.start_main_~i~5 5), 17159#(<= ULTIMATE.start_main_~i~5 6), 17160#(<= ULTIMATE.start_main_~i~5 7), 17161#(<= ULTIMATE.start_main_~i~5 8), 17162#(<= ULTIMATE.start_main_~i~5 9), 17163#(<= ULTIMATE.start_main_~i~5 10), 17164#(<= ULTIMATE.start_main_~i~5 11), 17165#(<= ULTIMATE.start_main_~i~5 12), 17166#(<= ULTIMATE.start_main_~i~5 13), 17167#(<= ULTIMATE.start_main_~i~5 14), 17168#(<= ULTIMATE.start_main_~i~5 15), 17169#(<= ULTIMATE.start_main_~i~5 16), 17170#(<= ULTIMATE.start_main_~i~5 17), 17171#(<= ULTIMATE.start_main_~i~5 18), 17172#(<= ULTIMATE.start_main_~i~5 19), 17173#(<= ULTIMATE.start_main_~i~5 20), 17174#(<= ULTIMATE.start_main_~i~5 21), 17175#(<= ULTIMATE.start_main_~i~5 22), 17176#(<= ULTIMATE.start_main_~i~5 23), 17177#(<= ULTIMATE.start_main_~i~5 24), 17178#(<= ULTIMATE.start_main_~i~5 25), 17179#(<= ULTIMATE.start_main_~i~5 26), 17180#(<= ULTIMATE.start_main_~i~5 27), 17181#(<= ULTIMATE.start_main_~i~5 28), 17182#(<= ULTIMATE.start_main_~i~5 29), 17183#(<= ULTIMATE.start_main_~j~5 29), 17184#(<= ULTIMATE.start_main_~j~5 28), 17185#(<= ULTIMATE.start_main_~j~5 27), 17186#(<= ULTIMATE.start_main_~j~5 26), 17187#(<= ULTIMATE.start_main_~j~5 25), 17188#(<= ULTIMATE.start_main_~j~5 24), 17189#(<= ULTIMATE.start_main_~j~5 23), 17190#(<= ULTIMATE.start_main_~j~5 22), 17191#(<= ULTIMATE.start_main_~j~5 21), 17192#(<= ULTIMATE.start_main_~j~5 20), 17193#(<= ULTIMATE.start_main_~j~5 19), 17194#(<= ULTIMATE.start_main_~j~5 18), 17195#(<= ULTIMATE.start_main_~j~5 17), 17196#(<= ULTIMATE.start_main_~j~5 16), 17197#(<= ULTIMATE.start_main_~j~5 15), 17198#(<= ULTIMATE.start_main_~j~5 14), 17199#(<= ULTIMATE.start_main_~j~5 13), 17200#(<= ULTIMATE.start_main_~j~5 12), 17201#(<= ULTIMATE.start_main_~j~5 11), 17202#(<= ULTIMATE.start_main_~j~5 10), 17203#(<= ULTIMATE.start_main_~j~5 9), 17204#(<= ULTIMATE.start_main_~j~5 8), 17205#(<= ULTIMATE.start_main_~j~5 7), 17206#(<= ULTIMATE.start_main_~j~5 6), 17207#(<= ULTIMATE.start_main_~j~5 5), 17208#(<= ULTIMATE.start_main_~j~5 4), 17209#(<= ULTIMATE.start_main_~j~5 3), 17210#(<= ULTIMATE.start_main_~j~5 2), 17211#(<= ULTIMATE.start_main_~j~5 1), 17212#(<= ULTIMATE.start_main_~j~5 0), 17151#true] [2018-07-23 13:41:01,407 INFO L134 CoverageAnalysis]: Checked inductivity of 1305 backedges. 870 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:01,408 INFO L450 AbstractCegarLoop]: Interpolant automaton has 62 states [2018-07-23 13:41:01,408 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2018-07-23 13:41:01,409 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=991, Invalid=2791, Unknown=0, NotChecked=0, Total=3782 [2018-07-23 13:41:01,409 INFO L87 Difference]: Start difference. First operand 93 states and 94 transitions. Second operand 62 states. [2018-07-23 13:41:01,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:01,761 INFO L93 Difference]: Finished difference Result 157 states and 159 transitions. [2018-07-23 13:41:01,761 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2018-07-23 13:41:01,761 INFO L78 Accepts]: Start accepts. Automaton has 62 states. Word has length 92 [2018-07-23 13:41:01,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:01,762 INFO L225 Difference]: With dead ends: 157 [2018-07-23 13:41:01,762 INFO L226 Difference]: Without dead ends: 94 [2018-07-23 13:41:01,764 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1276 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=1981, Invalid=6391, Unknown=0, NotChecked=0, Total=8372 [2018-07-23 13:41:01,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2018-07-23 13:41:01,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2018-07-23 13:41:01,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2018-07-23 13:41:01,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 95 transitions. [2018-07-23 13:41:01,776 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 95 transitions. Word has length 92 [2018-07-23 13:41:01,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:01,776 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 95 transitions. [2018-07-23 13:41:01,776 INFO L472 AbstractCegarLoop]: Interpolant automaton has 62 states. [2018-07-23 13:41:01,776 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 95 transitions. [2018-07-23 13:41:01,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-07-23 13:41:01,777 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:01,777 INFO L357 BasicCegarLoop]: trace histogram [30, 30, 29, 1, 1, 1, 1] [2018-07-23 13:41:01,777 INFO L414 AbstractCegarLoop]: === Iteration 60 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:01,778 INFO L82 PathProgramCache]: Analyzing trace with hash 1680397027, now seen corresponding path program 58 times [2018-07-23 13:41:01,778 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:01,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:01,884 INFO L134 CoverageAnalysis]: Checked inductivity of 1335 backedges. 465 proven. 870 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:01,884 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:01,885 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2018-07-23 13:41:01,885 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:01,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:01,885 INFO L185 omatonBuilderFactory]: Interpolants [17792#(<= 15 ULTIMATE.start_main_~k~5), 17793#(<= 16 ULTIMATE.start_main_~k~5), 17794#(<= 17 ULTIMATE.start_main_~k~5), 17795#(<= 18 ULTIMATE.start_main_~k~5), 17796#(<= 19 ULTIMATE.start_main_~k~5), 17797#(<= 20 ULTIMATE.start_main_~k~5), 17798#(<= 21 ULTIMATE.start_main_~k~5), 17799#(<= 22 ULTIMATE.start_main_~k~5), 17800#(<= 23 ULTIMATE.start_main_~k~5), 17801#(<= 24 ULTIMATE.start_main_~k~5), 17802#(<= 25 ULTIMATE.start_main_~k~5), 17803#(<= 26 ULTIMATE.start_main_~k~5), 17804#(<= 27 ULTIMATE.start_main_~k~5), 17805#(<= 28 ULTIMATE.start_main_~k~5), 17806#(<= 29 ULTIMATE.start_main_~k~5), 17807#(<= 30 ULTIMATE.start_main_~k~5), 17808#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 17775#true, 17776#false, 17777#(<= 0 ULTIMATE.start_main_~k~5), 17778#(<= 1 ULTIMATE.start_main_~k~5), 17779#(<= 2 ULTIMATE.start_main_~k~5), 17780#(<= 3 ULTIMATE.start_main_~k~5), 17781#(<= 4 ULTIMATE.start_main_~k~5), 17782#(<= 5 ULTIMATE.start_main_~k~5), 17783#(<= 6 ULTIMATE.start_main_~k~5), 17784#(<= 7 ULTIMATE.start_main_~k~5), 17785#(<= 8 ULTIMATE.start_main_~k~5), 17786#(<= 9 ULTIMATE.start_main_~k~5), 17787#(<= 10 ULTIMATE.start_main_~k~5), 17788#(<= 11 ULTIMATE.start_main_~k~5), 17789#(<= 12 ULTIMATE.start_main_~k~5), 17790#(<= 13 ULTIMATE.start_main_~k~5), 17791#(<= 14 ULTIMATE.start_main_~k~5)] [2018-07-23 13:41:01,886 INFO L134 CoverageAnalysis]: Checked inductivity of 1335 backedges. 465 proven. 870 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:01,886 INFO L450 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-07-23 13:41:01,886 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-07-23 13:41:01,886 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=530, Invalid=592, Unknown=0, NotChecked=0, Total=1122 [2018-07-23 13:41:01,887 INFO L87 Difference]: Start difference. First operand 94 states and 95 transitions. Second operand 34 states. [2018-07-23 13:41:02,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:02,004 INFO L93 Difference]: Finished difference Result 102 states and 103 transitions. [2018-07-23 13:41:02,004 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2018-07-23 13:41:02,004 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 93 [2018-07-23 13:41:02,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:02,005 INFO L225 Difference]: With dead ends: 102 [2018-07-23 13:41:02,005 INFO L226 Difference]: Without dead ends: 100 [2018-07-23 13:41:02,006 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 930 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1584, Invalid=2576, Unknown=0, NotChecked=0, Total=4160 [2018-07-23 13:41:02,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2018-07-23 13:41:02,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 96. [2018-07-23 13:41:02,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2018-07-23 13:41:02,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 97 transitions. [2018-07-23 13:41:02,020 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 97 transitions. Word has length 93 [2018-07-23 13:41:02,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:02,020 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 97 transitions. [2018-07-23 13:41:02,020 INFO L472 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-07-23 13:41:02,020 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 97 transitions. [2018-07-23 13:41:02,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2018-07-23 13:41:02,021 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:02,021 INFO L357 BasicCegarLoop]: trace histogram [31, 30, 30, 1, 1, 1, 1] [2018-07-23 13:41:02,021 INFO L414 AbstractCegarLoop]: === Iteration 61 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:02,022 INFO L82 PathProgramCache]: Analyzing trace with hash -46094325, now seen corresponding path program 59 times [2018-07-23 13:41:02,022 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:02,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:02,216 INFO L134 CoverageAnalysis]: Checked inductivity of 1395 backedges. 930 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:02,216 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:02,216 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [63] total 63 [2018-07-23 13:41:02,217 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:02,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:02,217 INFO L185 omatonBuilderFactory]: Interpolants [18304#(<= ULTIMATE.start_main_~j~5 26), 18305#(<= ULTIMATE.start_main_~j~5 25), 18306#(<= ULTIMATE.start_main_~j~5 24), 18307#(<= ULTIMATE.start_main_~j~5 23), 18308#(<= ULTIMATE.start_main_~j~5 22), 18309#(<= ULTIMATE.start_main_~j~5 21), 18310#(<= ULTIMATE.start_main_~j~5 20), 18311#(<= ULTIMATE.start_main_~j~5 19), 18312#(<= ULTIMATE.start_main_~j~5 18), 18313#(<= ULTIMATE.start_main_~j~5 17), 18314#(<= ULTIMATE.start_main_~j~5 16), 18315#(<= ULTIMATE.start_main_~j~5 15), 18316#(<= ULTIMATE.start_main_~j~5 14), 18317#(<= ULTIMATE.start_main_~j~5 13), 18318#(<= ULTIMATE.start_main_~j~5 12), 18319#(<= ULTIMATE.start_main_~j~5 11), 18320#(<= ULTIMATE.start_main_~j~5 10), 18321#(<= ULTIMATE.start_main_~j~5 9), 18322#(<= ULTIMATE.start_main_~j~5 8), 18323#(<= ULTIMATE.start_main_~j~5 7), 18324#(<= ULTIMATE.start_main_~j~5 6), 18325#(<= ULTIMATE.start_main_~j~5 5), 18326#(<= ULTIMATE.start_main_~j~5 4), 18327#(<= ULTIMATE.start_main_~j~5 3), 18328#(<= ULTIMATE.start_main_~j~5 2), 18329#(<= ULTIMATE.start_main_~j~5 1), 18330#(<= ULTIMATE.start_main_~j~5 0), 18267#true, 18268#false, 18269#(<= ULTIMATE.start_main_~i~5 0), 18270#(<= ULTIMATE.start_main_~i~5 1), 18271#(<= ULTIMATE.start_main_~i~5 2), 18272#(<= ULTIMATE.start_main_~i~5 3), 18273#(<= ULTIMATE.start_main_~i~5 4), 18274#(<= ULTIMATE.start_main_~i~5 5), 18275#(<= ULTIMATE.start_main_~i~5 6), 18276#(<= ULTIMATE.start_main_~i~5 7), 18277#(<= ULTIMATE.start_main_~i~5 8), 18278#(<= ULTIMATE.start_main_~i~5 9), 18279#(<= ULTIMATE.start_main_~i~5 10), 18280#(<= ULTIMATE.start_main_~i~5 11), 18281#(<= ULTIMATE.start_main_~i~5 12), 18282#(<= ULTIMATE.start_main_~i~5 13), 18283#(<= ULTIMATE.start_main_~i~5 14), 18284#(<= ULTIMATE.start_main_~i~5 15), 18285#(<= ULTIMATE.start_main_~i~5 16), 18286#(<= ULTIMATE.start_main_~i~5 17), 18287#(<= ULTIMATE.start_main_~i~5 18), 18288#(<= ULTIMATE.start_main_~i~5 19), 18289#(<= ULTIMATE.start_main_~i~5 20), 18290#(<= ULTIMATE.start_main_~i~5 21), 18291#(<= ULTIMATE.start_main_~i~5 22), 18292#(<= ULTIMATE.start_main_~i~5 23), 18293#(<= ULTIMATE.start_main_~i~5 24), 18294#(<= ULTIMATE.start_main_~i~5 25), 18295#(<= ULTIMATE.start_main_~i~5 26), 18296#(<= ULTIMATE.start_main_~i~5 27), 18297#(<= ULTIMATE.start_main_~i~5 28), 18298#(<= ULTIMATE.start_main_~i~5 29), 18299#(<= ULTIMATE.start_main_~i~5 30), 18300#(<= ULTIMATE.start_main_~j~5 30), 18301#(<= ULTIMATE.start_main_~j~5 29), 18302#(<= ULTIMATE.start_main_~j~5 28), 18303#(<= ULTIMATE.start_main_~j~5 27)] [2018-07-23 13:41:02,218 INFO L134 CoverageAnalysis]: Checked inductivity of 1395 backedges. 930 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:02,218 INFO L450 AbstractCegarLoop]: Interpolant automaton has 64 states [2018-07-23 13:41:02,218 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2018-07-23 13:41:02,219 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1055, Invalid=2977, Unknown=0, NotChecked=0, Total=4032 [2018-07-23 13:41:02,219 INFO L87 Difference]: Start difference. First operand 96 states and 97 transitions. Second operand 64 states. [2018-07-23 13:41:02,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:02,620 INFO L93 Difference]: Finished difference Result 162 states and 164 transitions. [2018-07-23 13:41:02,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2018-07-23 13:41:02,620 INFO L78 Accepts]: Start accepts. Automaton has 64 states. Word has length 95 [2018-07-23 13:41:02,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:02,621 INFO L225 Difference]: With dead ends: 162 [2018-07-23 13:41:02,622 INFO L226 Difference]: Without dead ends: 97 [2018-07-23 13:41:02,623 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1365 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=2109, Invalid=6821, Unknown=0, NotChecked=0, Total=8930 [2018-07-23 13:41:02,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2018-07-23 13:41:02,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2018-07-23 13:41:02,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2018-07-23 13:41:02,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 98 transitions. [2018-07-23 13:41:02,637 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 98 transitions. Word has length 95 [2018-07-23 13:41:02,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:02,637 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 98 transitions. [2018-07-23 13:41:02,637 INFO L472 AbstractCegarLoop]: Interpolant automaton has 64 states. [2018-07-23 13:41:02,637 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 98 transitions. [2018-07-23 13:41:02,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-07-23 13:41:02,638 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:02,638 INFO L357 BasicCegarLoop]: trace histogram [31, 31, 30, 1, 1, 1, 1] [2018-07-23 13:41:02,638 INFO L414 AbstractCegarLoop]: === Iteration 62 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:02,639 INFO L82 PathProgramCache]: Analyzing trace with hash 366302578, now seen corresponding path program 60 times [2018-07-23 13:41:02,639 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:02,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:02,751 INFO L134 CoverageAnalysis]: Checked inductivity of 1426 backedges. 496 proven. 930 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:02,752 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:02,752 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2018-07-23 13:41:02,752 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:02,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:02,753 INFO L185 omatonBuilderFactory]: Interpolants [18944#(<= 31 ULTIMATE.start_main_~k~5), 18945#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 18911#true, 18912#false, 18913#(<= 0 ULTIMATE.start_main_~k~5), 18914#(<= 1 ULTIMATE.start_main_~k~5), 18915#(<= 2 ULTIMATE.start_main_~k~5), 18916#(<= 3 ULTIMATE.start_main_~k~5), 18917#(<= 4 ULTIMATE.start_main_~k~5), 18918#(<= 5 ULTIMATE.start_main_~k~5), 18919#(<= 6 ULTIMATE.start_main_~k~5), 18920#(<= 7 ULTIMATE.start_main_~k~5), 18921#(<= 8 ULTIMATE.start_main_~k~5), 18922#(<= 9 ULTIMATE.start_main_~k~5), 18923#(<= 10 ULTIMATE.start_main_~k~5), 18924#(<= 11 ULTIMATE.start_main_~k~5), 18925#(<= 12 ULTIMATE.start_main_~k~5), 18926#(<= 13 ULTIMATE.start_main_~k~5), 18927#(<= 14 ULTIMATE.start_main_~k~5), 18928#(<= 15 ULTIMATE.start_main_~k~5), 18929#(<= 16 ULTIMATE.start_main_~k~5), 18930#(<= 17 ULTIMATE.start_main_~k~5), 18931#(<= 18 ULTIMATE.start_main_~k~5), 18932#(<= 19 ULTIMATE.start_main_~k~5), 18933#(<= 20 ULTIMATE.start_main_~k~5), 18934#(<= 21 ULTIMATE.start_main_~k~5), 18935#(<= 22 ULTIMATE.start_main_~k~5), 18936#(<= 23 ULTIMATE.start_main_~k~5), 18937#(<= 24 ULTIMATE.start_main_~k~5), 18938#(<= 25 ULTIMATE.start_main_~k~5), 18939#(<= 26 ULTIMATE.start_main_~k~5), 18940#(<= 27 ULTIMATE.start_main_~k~5), 18941#(<= 28 ULTIMATE.start_main_~k~5), 18942#(<= 29 ULTIMATE.start_main_~k~5), 18943#(<= 30 ULTIMATE.start_main_~k~5)] [2018-07-23 13:41:02,753 INFO L134 CoverageAnalysis]: Checked inductivity of 1426 backedges. 496 proven. 930 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:02,753 INFO L450 AbstractCegarLoop]: Interpolant automaton has 35 states [2018-07-23 13:41:02,753 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2018-07-23 13:41:02,754 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=563, Invalid=627, Unknown=0, NotChecked=0, Total=1190 [2018-07-23 13:41:02,754 INFO L87 Difference]: Start difference. First operand 97 states and 98 transitions. Second operand 35 states. [2018-07-23 13:41:02,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:02,886 INFO L93 Difference]: Finished difference Result 105 states and 106 transitions. [2018-07-23 13:41:02,887 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2018-07-23 13:41:02,887 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 96 [2018-07-23 13:41:02,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:02,888 INFO L225 Difference]: With dead ends: 105 [2018-07-23 13:41:02,888 INFO L226 Difference]: Without dead ends: 103 [2018-07-23 13:41:02,889 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 992 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=1683, Invalid=2739, Unknown=0, NotChecked=0, Total=4422 [2018-07-23 13:41:02,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2018-07-23 13:41:02,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 99. [2018-07-23 13:41:02,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2018-07-23 13:41:02,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 100 transitions. [2018-07-23 13:41:02,900 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 100 transitions. Word has length 96 [2018-07-23 13:41:02,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:02,901 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 100 transitions. [2018-07-23 13:41:02,901 INFO L472 AbstractCegarLoop]: Interpolant automaton has 35 states. [2018-07-23 13:41:02,901 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 100 transitions. [2018-07-23 13:41:02,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2018-07-23 13:41:02,902 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:02,902 INFO L357 BasicCegarLoop]: trace histogram [32, 31, 31, 1, 1, 1, 1] [2018-07-23 13:41:02,902 INFO L414 AbstractCegarLoop]: === Iteration 63 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:02,902 INFO L82 PathProgramCache]: Analyzing trace with hash -170474790, now seen corresponding path program 61 times [2018-07-23 13:41:02,903 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:02,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:03,082 INFO L134 CoverageAnalysis]: Checked inductivity of 1488 backedges. 992 proven. 496 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:03,083 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:03,083 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [65] total 65 [2018-07-23 13:41:03,083 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:03,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:03,084 INFO L185 omatonBuilderFactory]: Interpolants [19456#(<= ULTIMATE.start_main_~j~5 27), 19457#(<= ULTIMATE.start_main_~j~5 26), 19458#(<= ULTIMATE.start_main_~j~5 25), 19459#(<= ULTIMATE.start_main_~j~5 24), 19460#(<= ULTIMATE.start_main_~j~5 23), 19461#(<= ULTIMATE.start_main_~j~5 22), 19462#(<= ULTIMATE.start_main_~j~5 21), 19463#(<= ULTIMATE.start_main_~j~5 20), 19464#(<= ULTIMATE.start_main_~j~5 19), 19465#(<= ULTIMATE.start_main_~j~5 18), 19466#(<= ULTIMATE.start_main_~j~5 17), 19467#(<= ULTIMATE.start_main_~j~5 16), 19468#(<= ULTIMATE.start_main_~j~5 15), 19469#(<= ULTIMATE.start_main_~j~5 14), 19470#(<= ULTIMATE.start_main_~j~5 13), 19471#(<= ULTIMATE.start_main_~j~5 12), 19472#(<= ULTIMATE.start_main_~j~5 11), 19473#(<= ULTIMATE.start_main_~j~5 10), 19474#(<= ULTIMATE.start_main_~j~5 9), 19475#(<= ULTIMATE.start_main_~j~5 8), 19476#(<= ULTIMATE.start_main_~j~5 7), 19477#(<= ULTIMATE.start_main_~j~5 6), 19478#(<= ULTIMATE.start_main_~j~5 5), 19479#(<= ULTIMATE.start_main_~j~5 4), 19480#(<= ULTIMATE.start_main_~j~5 3), 19481#(<= ULTIMATE.start_main_~j~5 2), 19482#(<= ULTIMATE.start_main_~j~5 1), 19483#(<= ULTIMATE.start_main_~j~5 0), 19418#true, 19419#false, 19420#(<= ULTIMATE.start_main_~i~5 0), 19421#(<= ULTIMATE.start_main_~i~5 1), 19422#(<= ULTIMATE.start_main_~i~5 2), 19423#(<= ULTIMATE.start_main_~i~5 3), 19424#(<= ULTIMATE.start_main_~i~5 4), 19425#(<= ULTIMATE.start_main_~i~5 5), 19426#(<= ULTIMATE.start_main_~i~5 6), 19427#(<= ULTIMATE.start_main_~i~5 7), 19428#(<= ULTIMATE.start_main_~i~5 8), 19429#(<= ULTIMATE.start_main_~i~5 9), 19430#(<= ULTIMATE.start_main_~i~5 10), 19431#(<= ULTIMATE.start_main_~i~5 11), 19432#(<= ULTIMATE.start_main_~i~5 12), 19433#(<= ULTIMATE.start_main_~i~5 13), 19434#(<= ULTIMATE.start_main_~i~5 14), 19435#(<= ULTIMATE.start_main_~i~5 15), 19436#(<= ULTIMATE.start_main_~i~5 16), 19437#(<= ULTIMATE.start_main_~i~5 17), 19438#(<= ULTIMATE.start_main_~i~5 18), 19439#(<= ULTIMATE.start_main_~i~5 19), 19440#(<= ULTIMATE.start_main_~i~5 20), 19441#(<= ULTIMATE.start_main_~i~5 21), 19442#(<= ULTIMATE.start_main_~i~5 22), 19443#(<= ULTIMATE.start_main_~i~5 23), 19444#(<= ULTIMATE.start_main_~i~5 24), 19445#(<= ULTIMATE.start_main_~i~5 25), 19446#(<= ULTIMATE.start_main_~i~5 26), 19447#(<= ULTIMATE.start_main_~i~5 27), 19448#(<= ULTIMATE.start_main_~i~5 28), 19449#(<= ULTIMATE.start_main_~i~5 29), 19450#(<= ULTIMATE.start_main_~i~5 30), 19451#(<= ULTIMATE.start_main_~i~5 31), 19452#(<= ULTIMATE.start_main_~j~5 31), 19453#(<= ULTIMATE.start_main_~j~5 30), 19454#(<= ULTIMATE.start_main_~j~5 29), 19455#(<= ULTIMATE.start_main_~j~5 28)] [2018-07-23 13:41:03,084 INFO L134 CoverageAnalysis]: Checked inductivity of 1488 backedges. 992 proven. 496 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:03,085 INFO L450 AbstractCegarLoop]: Interpolant automaton has 66 states [2018-07-23 13:41:03,085 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2018-07-23 13:41:03,086 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1121, Invalid=3169, Unknown=0, NotChecked=0, Total=4290 [2018-07-23 13:41:03,086 INFO L87 Difference]: Start difference. First operand 99 states and 100 transitions. Second operand 66 states. [2018-07-23 13:41:03,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:03,484 INFO L93 Difference]: Finished difference Result 167 states and 169 transitions. [2018-07-23 13:41:03,484 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2018-07-23 13:41:03,484 INFO L78 Accepts]: Start accepts. Automaton has 66 states. Word has length 98 [2018-07-23 13:41:03,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:03,485 INFO L225 Difference]: With dead ends: 167 [2018-07-23 13:41:03,486 INFO L226 Difference]: Without dead ends: 100 [2018-07-23 13:41:03,487 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1457 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=2241, Invalid=7265, Unknown=0, NotChecked=0, Total=9506 [2018-07-23 13:41:03,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2018-07-23 13:41:03,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2018-07-23 13:41:03,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2018-07-23 13:41:03,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 101 transitions. [2018-07-23 13:41:03,498 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 101 transitions. Word has length 98 [2018-07-23 13:41:03,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:03,498 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 101 transitions. [2018-07-23 13:41:03,498 INFO L472 AbstractCegarLoop]: Interpolant automaton has 66 states. [2018-07-23 13:41:03,498 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 101 transitions. [2018-07-23 13:41:03,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-07-23 13:41:03,499 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:03,499 INFO L357 BasicCegarLoop]: trace histogram [32, 32, 31, 1, 1, 1, 1] [2018-07-23 13:41:03,499 INFO L414 AbstractCegarLoop]: === Iteration 64 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:03,500 INFO L82 PathProgramCache]: Analyzing trace with hash 1939195923, now seen corresponding path program 62 times [2018-07-23 13:41:03,500 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:03,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:03,610 INFO L134 CoverageAnalysis]: Checked inductivity of 1520 backedges. 528 proven. 992 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:03,611 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:03,611 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2018-07-23 13:41:03,611 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:03,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:03,612 INFO L185 omatonBuilderFactory]: Interpolants [20096#(<= 12 ULTIMATE.start_main_~k~5), 20097#(<= 13 ULTIMATE.start_main_~k~5), 20098#(<= 14 ULTIMATE.start_main_~k~5), 20099#(<= 15 ULTIMATE.start_main_~k~5), 20100#(<= 16 ULTIMATE.start_main_~k~5), 20101#(<= 17 ULTIMATE.start_main_~k~5), 20102#(<= 18 ULTIMATE.start_main_~k~5), 20103#(<= 19 ULTIMATE.start_main_~k~5), 20104#(<= 20 ULTIMATE.start_main_~k~5), 20105#(<= 21 ULTIMATE.start_main_~k~5), 20106#(<= 22 ULTIMATE.start_main_~k~5), 20107#(<= 23 ULTIMATE.start_main_~k~5), 20108#(<= 24 ULTIMATE.start_main_~k~5), 20109#(<= 25 ULTIMATE.start_main_~k~5), 20110#(<= 26 ULTIMATE.start_main_~k~5), 20111#(<= 27 ULTIMATE.start_main_~k~5), 20112#(<= 28 ULTIMATE.start_main_~k~5), 20113#(<= 29 ULTIMATE.start_main_~k~5), 20114#(<= 30 ULTIMATE.start_main_~k~5), 20115#(<= 31 ULTIMATE.start_main_~k~5), 20116#(<= 32 ULTIMATE.start_main_~k~5), 20117#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 20082#true, 20083#false, 20084#(<= 0 ULTIMATE.start_main_~k~5), 20085#(<= 1 ULTIMATE.start_main_~k~5), 20086#(<= 2 ULTIMATE.start_main_~k~5), 20087#(<= 3 ULTIMATE.start_main_~k~5), 20088#(<= 4 ULTIMATE.start_main_~k~5), 20089#(<= 5 ULTIMATE.start_main_~k~5), 20090#(<= 6 ULTIMATE.start_main_~k~5), 20091#(<= 7 ULTIMATE.start_main_~k~5), 20092#(<= 8 ULTIMATE.start_main_~k~5), 20093#(<= 9 ULTIMATE.start_main_~k~5), 20094#(<= 10 ULTIMATE.start_main_~k~5), 20095#(<= 11 ULTIMATE.start_main_~k~5)] [2018-07-23 13:41:03,612 INFO L134 CoverageAnalysis]: Checked inductivity of 1520 backedges. 528 proven. 992 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:03,612 INFO L450 AbstractCegarLoop]: Interpolant automaton has 36 states [2018-07-23 13:41:03,613 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2018-07-23 13:41:03,613 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=597, Invalid=663, Unknown=0, NotChecked=0, Total=1260 [2018-07-23 13:41:03,613 INFO L87 Difference]: Start difference. First operand 100 states and 101 transitions. Second operand 36 states. [2018-07-23 13:41:03,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:03,729 INFO L93 Difference]: Finished difference Result 108 states and 109 transitions. [2018-07-23 13:41:03,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2018-07-23 13:41:03,729 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 99 [2018-07-23 13:41:03,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:03,730 INFO L225 Difference]: With dead ends: 108 [2018-07-23 13:41:03,730 INFO L226 Difference]: Without dead ends: 106 [2018-07-23 13:41:03,731 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1056 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1785, Invalid=2907, Unknown=0, NotChecked=0, Total=4692 [2018-07-23 13:41:03,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2018-07-23 13:41:03,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 102. [2018-07-23 13:41:03,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2018-07-23 13:41:03,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 103 transitions. [2018-07-23 13:41:03,742 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 103 transitions. Word has length 99 [2018-07-23 13:41:03,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:03,743 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 103 transitions. [2018-07-23 13:41:03,743 INFO L472 AbstractCegarLoop]: Interpolant automaton has 36 states. [2018-07-23 13:41:03,743 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 103 transitions. [2018-07-23 13:41:03,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-07-23 13:41:03,746 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:03,746 INFO L357 BasicCegarLoop]: trace histogram [33, 32, 32, 1, 1, 1, 1] [2018-07-23 13:41:03,746 INFO L414 AbstractCegarLoop]: === Iteration 65 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:03,746 INFO L82 PathProgramCache]: Analyzing trace with hash -448458437, now seen corresponding path program 63 times [2018-07-23 13:41:03,747 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:03,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:03,910 INFO L134 CoverageAnalysis]: Checked inductivity of 1584 backedges. 1056 proven. 528 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:03,910 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:03,911 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [67] total 67 [2018-07-23 13:41:03,911 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:03,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:03,911 INFO L185 omatonBuilderFactory]: Interpolants [20608#(<= ULTIMATE.start_main_~i~5 2), 20609#(<= ULTIMATE.start_main_~i~5 3), 20610#(<= ULTIMATE.start_main_~i~5 4), 20611#(<= ULTIMATE.start_main_~i~5 5), 20612#(<= ULTIMATE.start_main_~i~5 6), 20613#(<= ULTIMATE.start_main_~i~5 7), 20614#(<= ULTIMATE.start_main_~i~5 8), 20615#(<= ULTIMATE.start_main_~i~5 9), 20616#(<= ULTIMATE.start_main_~i~5 10), 20617#(<= ULTIMATE.start_main_~i~5 11), 20618#(<= ULTIMATE.start_main_~i~5 12), 20619#(<= ULTIMATE.start_main_~i~5 13), 20620#(<= ULTIMATE.start_main_~i~5 14), 20621#(<= ULTIMATE.start_main_~i~5 15), 20622#(<= ULTIMATE.start_main_~i~5 16), 20623#(<= ULTIMATE.start_main_~i~5 17), 20624#(<= ULTIMATE.start_main_~i~5 18), 20625#(<= ULTIMATE.start_main_~i~5 19), 20626#(<= ULTIMATE.start_main_~i~5 20), 20627#(<= ULTIMATE.start_main_~i~5 21), 20628#(<= ULTIMATE.start_main_~i~5 22), 20629#(<= ULTIMATE.start_main_~i~5 23), 20630#(<= ULTIMATE.start_main_~i~5 24), 20631#(<= ULTIMATE.start_main_~i~5 25), 20632#(<= ULTIMATE.start_main_~i~5 26), 20633#(<= ULTIMATE.start_main_~i~5 27), 20634#(<= ULTIMATE.start_main_~i~5 28), 20635#(<= ULTIMATE.start_main_~i~5 29), 20636#(<= ULTIMATE.start_main_~i~5 30), 20637#(<= ULTIMATE.start_main_~i~5 31), 20638#(<= ULTIMATE.start_main_~i~5 32), 20639#(<= ULTIMATE.start_main_~j~5 32), 20640#(<= ULTIMATE.start_main_~j~5 31), 20641#(<= ULTIMATE.start_main_~j~5 30), 20642#(<= ULTIMATE.start_main_~j~5 29), 20643#(<= ULTIMATE.start_main_~j~5 28), 20644#(<= ULTIMATE.start_main_~j~5 27), 20645#(<= ULTIMATE.start_main_~j~5 26), 20646#(<= ULTIMATE.start_main_~j~5 25), 20647#(<= ULTIMATE.start_main_~j~5 24), 20648#(<= ULTIMATE.start_main_~j~5 23), 20649#(<= ULTIMATE.start_main_~j~5 22), 20650#(<= ULTIMATE.start_main_~j~5 21), 20651#(<= ULTIMATE.start_main_~j~5 20), 20652#(<= ULTIMATE.start_main_~j~5 19), 20653#(<= ULTIMATE.start_main_~j~5 18), 20654#(<= ULTIMATE.start_main_~j~5 17), 20655#(<= ULTIMATE.start_main_~j~5 16), 20656#(<= ULTIMATE.start_main_~j~5 15), 20657#(<= ULTIMATE.start_main_~j~5 14), 20658#(<= ULTIMATE.start_main_~j~5 13), 20659#(<= ULTIMATE.start_main_~j~5 12), 20660#(<= ULTIMATE.start_main_~j~5 11), 20661#(<= ULTIMATE.start_main_~j~5 10), 20662#(<= ULTIMATE.start_main_~j~5 9), 20663#(<= ULTIMATE.start_main_~j~5 8), 20664#(<= ULTIMATE.start_main_~j~5 7), 20665#(<= ULTIMATE.start_main_~j~5 6), 20666#(<= ULTIMATE.start_main_~j~5 5), 20667#(<= ULTIMATE.start_main_~j~5 4), 20668#(<= ULTIMATE.start_main_~j~5 3), 20669#(<= ULTIMATE.start_main_~j~5 2), 20670#(<= ULTIMATE.start_main_~j~5 1), 20671#(<= ULTIMATE.start_main_~j~5 0), 20604#true, 20605#false, 20606#(<= ULTIMATE.start_main_~i~5 0), 20607#(<= ULTIMATE.start_main_~i~5 1)] [2018-07-23 13:41:03,912 INFO L134 CoverageAnalysis]: Checked inductivity of 1584 backedges. 1056 proven. 528 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:03,912 INFO L450 AbstractCegarLoop]: Interpolant automaton has 68 states [2018-07-23 13:41:03,912 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2018-07-23 13:41:03,913 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1189, Invalid=3367, Unknown=0, NotChecked=0, Total=4556 [2018-07-23 13:41:03,913 INFO L87 Difference]: Start difference. First operand 102 states and 103 transitions. Second operand 68 states. [2018-07-23 13:41:04,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:04,277 INFO L93 Difference]: Finished difference Result 172 states and 174 transitions. [2018-07-23 13:41:04,277 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2018-07-23 13:41:04,278 INFO L78 Accepts]: Start accepts. Automaton has 68 states. Word has length 101 [2018-07-23 13:41:04,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:04,279 INFO L225 Difference]: With dead ends: 172 [2018-07-23 13:41:04,279 INFO L226 Difference]: Without dead ends: 103 [2018-07-23 13:41:04,282 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1552 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=2377, Invalid=7723, Unknown=0, NotChecked=0, Total=10100 [2018-07-23 13:41:04,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2018-07-23 13:41:04,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2018-07-23 13:41:04,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2018-07-23 13:41:04,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 104 transitions. [2018-07-23 13:41:04,295 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 104 transitions. Word has length 101 [2018-07-23 13:41:04,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:04,295 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 104 transitions. [2018-07-23 13:41:04,295 INFO L472 AbstractCegarLoop]: Interpolant automaton has 68 states. [2018-07-23 13:41:04,295 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 104 transitions. [2018-07-23 13:41:04,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-07-23 13:41:04,297 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:04,298 INFO L357 BasicCegarLoop]: trace histogram [33, 33, 32, 1, 1, 1, 1] [2018-07-23 13:41:04,298 INFO L414 AbstractCegarLoop]: === Iteration 66 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:04,298 INFO L82 PathProgramCache]: Analyzing trace with hash 495310178, now seen corresponding path program 64 times [2018-07-23 13:41:04,298 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:04,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:04,419 INFO L134 CoverageAnalysis]: Checked inductivity of 1617 backedges. 561 proven. 1056 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:04,419 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:04,419 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2018-07-23 13:41:04,419 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:04,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:04,420 INFO L185 omatonBuilderFactory]: Interpolants [21312#(<= 22 ULTIMATE.start_main_~k~5), 21313#(<= 23 ULTIMATE.start_main_~k~5), 21314#(<= 24 ULTIMATE.start_main_~k~5), 21315#(<= 25 ULTIMATE.start_main_~k~5), 21316#(<= 26 ULTIMATE.start_main_~k~5), 21317#(<= 27 ULTIMATE.start_main_~k~5), 21318#(<= 28 ULTIMATE.start_main_~k~5), 21319#(<= 29 ULTIMATE.start_main_~k~5), 21320#(<= 30 ULTIMATE.start_main_~k~5), 21321#(<= 31 ULTIMATE.start_main_~k~5), 21322#(<= 32 ULTIMATE.start_main_~k~5), 21323#(<= 33 ULTIMATE.start_main_~k~5), 21324#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 21288#true, 21289#false, 21290#(<= 0 ULTIMATE.start_main_~k~5), 21291#(<= 1 ULTIMATE.start_main_~k~5), 21292#(<= 2 ULTIMATE.start_main_~k~5), 21293#(<= 3 ULTIMATE.start_main_~k~5), 21294#(<= 4 ULTIMATE.start_main_~k~5), 21295#(<= 5 ULTIMATE.start_main_~k~5), 21296#(<= 6 ULTIMATE.start_main_~k~5), 21297#(<= 7 ULTIMATE.start_main_~k~5), 21298#(<= 8 ULTIMATE.start_main_~k~5), 21299#(<= 9 ULTIMATE.start_main_~k~5), 21300#(<= 10 ULTIMATE.start_main_~k~5), 21301#(<= 11 ULTIMATE.start_main_~k~5), 21302#(<= 12 ULTIMATE.start_main_~k~5), 21303#(<= 13 ULTIMATE.start_main_~k~5), 21304#(<= 14 ULTIMATE.start_main_~k~5), 21305#(<= 15 ULTIMATE.start_main_~k~5), 21306#(<= 16 ULTIMATE.start_main_~k~5), 21307#(<= 17 ULTIMATE.start_main_~k~5), 21308#(<= 18 ULTIMATE.start_main_~k~5), 21309#(<= 19 ULTIMATE.start_main_~k~5), 21310#(<= 20 ULTIMATE.start_main_~k~5), 21311#(<= 21 ULTIMATE.start_main_~k~5)] [2018-07-23 13:41:04,420 INFO L134 CoverageAnalysis]: Checked inductivity of 1617 backedges. 561 proven. 1056 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:04,421 INFO L450 AbstractCegarLoop]: Interpolant automaton has 37 states [2018-07-23 13:41:04,421 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2018-07-23 13:41:04,421 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=632, Invalid=700, Unknown=0, NotChecked=0, Total=1332 [2018-07-23 13:41:04,421 INFO L87 Difference]: Start difference. First operand 103 states and 104 transitions. Second operand 37 states. [2018-07-23 13:41:04,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:04,542 INFO L93 Difference]: Finished difference Result 111 states and 112 transitions. [2018-07-23 13:41:04,542 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2018-07-23 13:41:04,542 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 102 [2018-07-23 13:41:04,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:04,543 INFO L225 Difference]: With dead ends: 111 [2018-07-23 13:41:04,543 INFO L226 Difference]: Without dead ends: 109 [2018-07-23 13:41:04,544 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1122 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1890, Invalid=3080, Unknown=0, NotChecked=0, Total=4970 [2018-07-23 13:41:04,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2018-07-23 13:41:04,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 105. [2018-07-23 13:41:04,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2018-07-23 13:41:04,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 106 transitions. [2018-07-23 13:41:04,556 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 106 transitions. Word has length 102 [2018-07-23 13:41:04,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:04,557 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 106 transitions. [2018-07-23 13:41:04,557 INFO L472 AbstractCegarLoop]: Interpolant automaton has 37 states. [2018-07-23 13:41:04,557 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 106 transitions. [2018-07-23 13:41:04,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-07-23 13:41:04,558 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:04,558 INFO L357 BasicCegarLoop]: trace histogram [34, 33, 33, 1, 1, 1, 1] [2018-07-23 13:41:04,558 INFO L414 AbstractCegarLoop]: === Iteration 67 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:04,559 INFO L82 PathProgramCache]: Analyzing trace with hash -748222774, now seen corresponding path program 65 times [2018-07-23 13:41:04,559 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:04,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:04,750 INFO L134 CoverageAnalysis]: Checked inductivity of 1683 backedges. 1122 proven. 561 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:04,750 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:04,751 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [69] total 69 [2018-07-23 13:41:04,751 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:04,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:04,751 INFO L185 omatonBuilderFactory]: Interpolants [21888#(<= ULTIMATE.start_main_~j~5 6), 21889#(<= ULTIMATE.start_main_~j~5 5), 21890#(<= ULTIMATE.start_main_~j~5 4), 21891#(<= ULTIMATE.start_main_~j~5 3), 21892#(<= ULTIMATE.start_main_~j~5 2), 21893#(<= ULTIMATE.start_main_~j~5 1), 21894#(<= ULTIMATE.start_main_~j~5 0), 21825#true, 21826#false, 21827#(<= ULTIMATE.start_main_~i~5 0), 21828#(<= ULTIMATE.start_main_~i~5 1), 21829#(<= ULTIMATE.start_main_~i~5 2), 21830#(<= ULTIMATE.start_main_~i~5 3), 21831#(<= ULTIMATE.start_main_~i~5 4), 21832#(<= ULTIMATE.start_main_~i~5 5), 21833#(<= ULTIMATE.start_main_~i~5 6), 21834#(<= ULTIMATE.start_main_~i~5 7), 21835#(<= ULTIMATE.start_main_~i~5 8), 21836#(<= ULTIMATE.start_main_~i~5 9), 21837#(<= ULTIMATE.start_main_~i~5 10), 21838#(<= ULTIMATE.start_main_~i~5 11), 21839#(<= ULTIMATE.start_main_~i~5 12), 21840#(<= ULTIMATE.start_main_~i~5 13), 21841#(<= ULTIMATE.start_main_~i~5 14), 21842#(<= ULTIMATE.start_main_~i~5 15), 21843#(<= ULTIMATE.start_main_~i~5 16), 21844#(<= ULTIMATE.start_main_~i~5 17), 21845#(<= ULTIMATE.start_main_~i~5 18), 21846#(<= ULTIMATE.start_main_~i~5 19), 21847#(<= ULTIMATE.start_main_~i~5 20), 21848#(<= ULTIMATE.start_main_~i~5 21), 21849#(<= ULTIMATE.start_main_~i~5 22), 21850#(<= ULTIMATE.start_main_~i~5 23), 21851#(<= ULTIMATE.start_main_~i~5 24), 21852#(<= ULTIMATE.start_main_~i~5 25), 21853#(<= ULTIMATE.start_main_~i~5 26), 21854#(<= ULTIMATE.start_main_~i~5 27), 21855#(<= ULTIMATE.start_main_~i~5 28), 21856#(<= ULTIMATE.start_main_~i~5 29), 21857#(<= ULTIMATE.start_main_~i~5 30), 21858#(<= ULTIMATE.start_main_~i~5 31), 21859#(<= ULTIMATE.start_main_~i~5 32), 21860#(<= ULTIMATE.start_main_~i~5 33), 21861#(<= ULTIMATE.start_main_~j~5 33), 21862#(<= ULTIMATE.start_main_~j~5 32), 21863#(<= ULTIMATE.start_main_~j~5 31), 21864#(<= ULTIMATE.start_main_~j~5 30), 21865#(<= ULTIMATE.start_main_~j~5 29), 21866#(<= ULTIMATE.start_main_~j~5 28), 21867#(<= ULTIMATE.start_main_~j~5 27), 21868#(<= ULTIMATE.start_main_~j~5 26), 21869#(<= ULTIMATE.start_main_~j~5 25), 21870#(<= ULTIMATE.start_main_~j~5 24), 21871#(<= ULTIMATE.start_main_~j~5 23), 21872#(<= ULTIMATE.start_main_~j~5 22), 21873#(<= ULTIMATE.start_main_~j~5 21), 21874#(<= ULTIMATE.start_main_~j~5 20), 21875#(<= ULTIMATE.start_main_~j~5 19), 21876#(<= ULTIMATE.start_main_~j~5 18), 21877#(<= ULTIMATE.start_main_~j~5 17), 21878#(<= ULTIMATE.start_main_~j~5 16), 21879#(<= ULTIMATE.start_main_~j~5 15), 21880#(<= ULTIMATE.start_main_~j~5 14), 21881#(<= ULTIMATE.start_main_~j~5 13), 21882#(<= ULTIMATE.start_main_~j~5 12), 21883#(<= ULTIMATE.start_main_~j~5 11), 21884#(<= ULTIMATE.start_main_~j~5 10), 21885#(<= ULTIMATE.start_main_~j~5 9), 21886#(<= ULTIMATE.start_main_~j~5 8), 21887#(<= ULTIMATE.start_main_~j~5 7)] [2018-07-23 13:41:04,752 INFO L134 CoverageAnalysis]: Checked inductivity of 1683 backedges. 1122 proven. 561 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:04,752 INFO L450 AbstractCegarLoop]: Interpolant automaton has 70 states [2018-07-23 13:41:04,753 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2018-07-23 13:41:04,753 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1259, Invalid=3571, Unknown=0, NotChecked=0, Total=4830 [2018-07-23 13:41:04,754 INFO L87 Difference]: Start difference. First operand 105 states and 106 transitions. Second operand 70 states. [2018-07-23 13:41:05,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:05,175 INFO L93 Difference]: Finished difference Result 177 states and 179 transitions. [2018-07-23 13:41:05,175 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2018-07-23 13:41:05,175 INFO L78 Accepts]: Start accepts. Automaton has 70 states. Word has length 104 [2018-07-23 13:41:05,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:05,176 INFO L225 Difference]: With dead ends: 177 [2018-07-23 13:41:05,176 INFO L226 Difference]: Without dead ends: 106 [2018-07-23 13:41:05,177 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1650 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=2517, Invalid=8195, Unknown=0, NotChecked=0, Total=10712 [2018-07-23 13:41:05,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2018-07-23 13:41:05,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2018-07-23 13:41:05,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2018-07-23 13:41:05,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 107 transitions. [2018-07-23 13:41:05,191 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 107 transitions. Word has length 104 [2018-07-23 13:41:05,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:05,191 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 107 transitions. [2018-07-23 13:41:05,192 INFO L472 AbstractCegarLoop]: Interpolant automaton has 70 states. [2018-07-23 13:41:05,192 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 107 transitions. [2018-07-23 13:41:05,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-07-23 13:41:05,193 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:05,193 INFO L357 BasicCegarLoop]: trace histogram [34, 34, 33, 1, 1, 1, 1] [2018-07-23 13:41:05,193 INFO L414 AbstractCegarLoop]: === Iteration 68 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:05,193 INFO L82 PathProgramCache]: Analyzing trace with hash 206667075, now seen corresponding path program 66 times [2018-07-23 13:41:05,193 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:05,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:05,327 INFO L134 CoverageAnalysis]: Checked inductivity of 1717 backedges. 595 proven. 1122 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:05,328 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:05,328 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [37] total 37 [2018-07-23 13:41:05,328 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:05,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:05,329 INFO L185 omatonBuilderFactory]: Interpolants [22529#true, 22530#false, 22531#(<= 0 ULTIMATE.start_main_~k~5), 22532#(<= 1 ULTIMATE.start_main_~k~5), 22533#(<= 2 ULTIMATE.start_main_~k~5), 22534#(<= 3 ULTIMATE.start_main_~k~5), 22535#(<= 4 ULTIMATE.start_main_~k~5), 22536#(<= 5 ULTIMATE.start_main_~k~5), 22537#(<= 6 ULTIMATE.start_main_~k~5), 22538#(<= 7 ULTIMATE.start_main_~k~5), 22539#(<= 8 ULTIMATE.start_main_~k~5), 22540#(<= 9 ULTIMATE.start_main_~k~5), 22541#(<= 10 ULTIMATE.start_main_~k~5), 22542#(<= 11 ULTIMATE.start_main_~k~5), 22543#(<= 12 ULTIMATE.start_main_~k~5), 22544#(<= 13 ULTIMATE.start_main_~k~5), 22545#(<= 14 ULTIMATE.start_main_~k~5), 22546#(<= 15 ULTIMATE.start_main_~k~5), 22547#(<= 16 ULTIMATE.start_main_~k~5), 22548#(<= 17 ULTIMATE.start_main_~k~5), 22549#(<= 18 ULTIMATE.start_main_~k~5), 22550#(<= 19 ULTIMATE.start_main_~k~5), 22551#(<= 20 ULTIMATE.start_main_~k~5), 22552#(<= 21 ULTIMATE.start_main_~k~5), 22553#(<= 22 ULTIMATE.start_main_~k~5), 22554#(<= 23 ULTIMATE.start_main_~k~5), 22555#(<= 24 ULTIMATE.start_main_~k~5), 22556#(<= 25 ULTIMATE.start_main_~k~5), 22557#(<= 26 ULTIMATE.start_main_~k~5), 22558#(<= 27 ULTIMATE.start_main_~k~5), 22559#(<= 28 ULTIMATE.start_main_~k~5), 22560#(<= 29 ULTIMATE.start_main_~k~5), 22561#(<= 30 ULTIMATE.start_main_~k~5), 22562#(<= 31 ULTIMATE.start_main_~k~5), 22563#(<= 32 ULTIMATE.start_main_~k~5), 22564#(<= 33 ULTIMATE.start_main_~k~5), 22565#(<= 34 ULTIMATE.start_main_~k~5), 22566#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond)] [2018-07-23 13:41:05,329 INFO L134 CoverageAnalysis]: Checked inductivity of 1717 backedges. 595 proven. 1122 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:05,329 INFO L450 AbstractCegarLoop]: Interpolant automaton has 38 states [2018-07-23 13:41:05,330 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2018-07-23 13:41:05,330 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=668, Invalid=738, Unknown=0, NotChecked=0, Total=1406 [2018-07-23 13:41:05,330 INFO L87 Difference]: Start difference. First operand 106 states and 107 transitions. Second operand 38 states. [2018-07-23 13:41:05,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:05,462 INFO L93 Difference]: Finished difference Result 114 states and 115 transitions. [2018-07-23 13:41:05,463 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2018-07-23 13:41:05,463 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 105 [2018-07-23 13:41:05,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:05,465 INFO L225 Difference]: With dead ends: 114 [2018-07-23 13:41:05,465 INFO L226 Difference]: Without dead ends: 112 [2018-07-23 13:41:05,466 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1190 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=1998, Invalid=3258, Unknown=0, NotChecked=0, Total=5256 [2018-07-23 13:41:05,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2018-07-23 13:41:05,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 108. [2018-07-23 13:41:05,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2018-07-23 13:41:05,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 109 transitions. [2018-07-23 13:41:05,478 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 109 transitions. Word has length 105 [2018-07-23 13:41:05,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:05,479 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 109 transitions. [2018-07-23 13:41:05,479 INFO L472 AbstractCegarLoop]: Interpolant automaton has 38 states. [2018-07-23 13:41:05,479 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 109 transitions. [2018-07-23 13:41:05,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2018-07-23 13:41:05,480 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:05,480 INFO L357 BasicCegarLoop]: trace histogram [35, 34, 34, 1, 1, 1, 1] [2018-07-23 13:41:05,480 INFO L414 AbstractCegarLoop]: === Iteration 69 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:05,480 INFO L82 PathProgramCache]: Analyzing trace with hash 1038629483, now seen corresponding path program 67 times [2018-07-23 13:41:05,481 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:05,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:05,669 INFO L134 CoverageAnalysis]: Checked inductivity of 1785 backedges. 1190 proven. 595 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:05,669 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:05,669 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [71] total 71 [2018-07-23 13:41:05,669 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:05,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:05,670 INFO L185 omatonBuilderFactory]: Interpolants [23081#true, 23082#false, 23083#(<= ULTIMATE.start_main_~i~5 0), 23084#(<= ULTIMATE.start_main_~i~5 1), 23085#(<= ULTIMATE.start_main_~i~5 2), 23086#(<= ULTIMATE.start_main_~i~5 3), 23087#(<= ULTIMATE.start_main_~i~5 4), 23088#(<= ULTIMATE.start_main_~i~5 5), 23089#(<= ULTIMATE.start_main_~i~5 6), 23090#(<= ULTIMATE.start_main_~i~5 7), 23091#(<= ULTIMATE.start_main_~i~5 8), 23092#(<= ULTIMATE.start_main_~i~5 9), 23093#(<= ULTIMATE.start_main_~i~5 10), 23094#(<= ULTIMATE.start_main_~i~5 11), 23095#(<= ULTIMATE.start_main_~i~5 12), 23096#(<= ULTIMATE.start_main_~i~5 13), 23097#(<= ULTIMATE.start_main_~i~5 14), 23098#(<= ULTIMATE.start_main_~i~5 15), 23099#(<= ULTIMATE.start_main_~i~5 16), 23100#(<= ULTIMATE.start_main_~i~5 17), 23101#(<= ULTIMATE.start_main_~i~5 18), 23102#(<= ULTIMATE.start_main_~i~5 19), 23103#(<= ULTIMATE.start_main_~i~5 20), 23104#(<= ULTIMATE.start_main_~i~5 21), 23105#(<= ULTIMATE.start_main_~i~5 22), 23106#(<= ULTIMATE.start_main_~i~5 23), 23107#(<= ULTIMATE.start_main_~i~5 24), 23108#(<= ULTIMATE.start_main_~i~5 25), 23109#(<= ULTIMATE.start_main_~i~5 26), 23110#(<= ULTIMATE.start_main_~i~5 27), 23111#(<= ULTIMATE.start_main_~i~5 28), 23112#(<= ULTIMATE.start_main_~i~5 29), 23113#(<= ULTIMATE.start_main_~i~5 30), 23114#(<= ULTIMATE.start_main_~i~5 31), 23115#(<= ULTIMATE.start_main_~i~5 32), 23116#(<= ULTIMATE.start_main_~i~5 33), 23117#(<= ULTIMATE.start_main_~i~5 34), 23118#(<= ULTIMATE.start_main_~j~5 34), 23119#(<= ULTIMATE.start_main_~j~5 33), 23120#(<= ULTIMATE.start_main_~j~5 32), 23121#(<= ULTIMATE.start_main_~j~5 31), 23122#(<= ULTIMATE.start_main_~j~5 30), 23123#(<= ULTIMATE.start_main_~j~5 29), 23124#(<= ULTIMATE.start_main_~j~5 28), 23125#(<= ULTIMATE.start_main_~j~5 27), 23126#(<= ULTIMATE.start_main_~j~5 26), 23127#(<= ULTIMATE.start_main_~j~5 25), 23128#(<= ULTIMATE.start_main_~j~5 24), 23129#(<= ULTIMATE.start_main_~j~5 23), 23130#(<= ULTIMATE.start_main_~j~5 22), 23131#(<= ULTIMATE.start_main_~j~5 21), 23132#(<= ULTIMATE.start_main_~j~5 20), 23133#(<= ULTIMATE.start_main_~j~5 19), 23134#(<= ULTIMATE.start_main_~j~5 18), 23135#(<= ULTIMATE.start_main_~j~5 17), 23136#(<= ULTIMATE.start_main_~j~5 16), 23137#(<= ULTIMATE.start_main_~j~5 15), 23138#(<= ULTIMATE.start_main_~j~5 14), 23139#(<= ULTIMATE.start_main_~j~5 13), 23140#(<= ULTIMATE.start_main_~j~5 12), 23141#(<= ULTIMATE.start_main_~j~5 11), 23142#(<= ULTIMATE.start_main_~j~5 10), 23143#(<= ULTIMATE.start_main_~j~5 9), 23144#(<= ULTIMATE.start_main_~j~5 8), 23145#(<= ULTIMATE.start_main_~j~5 7), 23146#(<= ULTIMATE.start_main_~j~5 6), 23147#(<= ULTIMATE.start_main_~j~5 5), 23148#(<= ULTIMATE.start_main_~j~5 4), 23149#(<= ULTIMATE.start_main_~j~5 3), 23150#(<= ULTIMATE.start_main_~j~5 2), 23151#(<= ULTIMATE.start_main_~j~5 1), 23152#(<= ULTIMATE.start_main_~j~5 0)] [2018-07-23 13:41:05,671 INFO L134 CoverageAnalysis]: Checked inductivity of 1785 backedges. 1190 proven. 595 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:05,671 INFO L450 AbstractCegarLoop]: Interpolant automaton has 72 states [2018-07-23 13:41:05,671 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2018-07-23 13:41:05,672 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1331, Invalid=3781, Unknown=0, NotChecked=0, Total=5112 [2018-07-23 13:41:05,672 INFO L87 Difference]: Start difference. First operand 108 states and 109 transitions. Second operand 72 states. [2018-07-23 13:41:06,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:06,168 INFO L93 Difference]: Finished difference Result 182 states and 184 transitions. [2018-07-23 13:41:06,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2018-07-23 13:41:06,168 INFO L78 Accepts]: Start accepts. Automaton has 72 states. Word has length 107 [2018-07-23 13:41:06,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:06,170 INFO L225 Difference]: With dead ends: 182 [2018-07-23 13:41:06,170 INFO L226 Difference]: Without dead ends: 109 [2018-07-23 13:41:06,172 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1751 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=2661, Invalid=8681, Unknown=0, NotChecked=0, Total=11342 [2018-07-23 13:41:06,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2018-07-23 13:41:06,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2018-07-23 13:41:06,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2018-07-23 13:41:06,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 110 transitions. [2018-07-23 13:41:06,189 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 110 transitions. Word has length 107 [2018-07-23 13:41:06,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:06,189 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 110 transitions. [2018-07-23 13:41:06,189 INFO L472 AbstractCegarLoop]: Interpolant automaton has 72 states. [2018-07-23 13:41:06,189 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 110 transitions. [2018-07-23 13:41:06,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2018-07-23 13:41:06,190 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:06,191 INFO L357 BasicCegarLoop]: trace histogram [35, 35, 34, 1, 1, 1, 1] [2018-07-23 13:41:06,191 INFO L414 AbstractCegarLoop]: === Iteration 70 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:06,191 INFO L82 PathProgramCache]: Analyzing trace with hash -1701247662, now seen corresponding path program 68 times [2018-07-23 13:41:06,191 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:06,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:06,365 INFO L134 CoverageAnalysis]: Checked inductivity of 1820 backedges. 630 proven. 1190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:06,366 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:06,367 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2018-07-23 13:41:06,367 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:06,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:06,368 INFO L185 omatonBuilderFactory]: Interpolants [23808#(<= 1 ULTIMATE.start_main_~k~5), 23809#(<= 2 ULTIMATE.start_main_~k~5), 23810#(<= 3 ULTIMATE.start_main_~k~5), 23811#(<= 4 ULTIMATE.start_main_~k~5), 23812#(<= 5 ULTIMATE.start_main_~k~5), 23813#(<= 6 ULTIMATE.start_main_~k~5), 23814#(<= 7 ULTIMATE.start_main_~k~5), 23815#(<= 8 ULTIMATE.start_main_~k~5), 23816#(<= 9 ULTIMATE.start_main_~k~5), 23817#(<= 10 ULTIMATE.start_main_~k~5), 23818#(<= 11 ULTIMATE.start_main_~k~5), 23819#(<= 12 ULTIMATE.start_main_~k~5), 23820#(<= 13 ULTIMATE.start_main_~k~5), 23821#(<= 14 ULTIMATE.start_main_~k~5), 23822#(<= 15 ULTIMATE.start_main_~k~5), 23823#(<= 16 ULTIMATE.start_main_~k~5), 23824#(<= 17 ULTIMATE.start_main_~k~5), 23825#(<= 18 ULTIMATE.start_main_~k~5), 23826#(<= 19 ULTIMATE.start_main_~k~5), 23827#(<= 20 ULTIMATE.start_main_~k~5), 23828#(<= 21 ULTIMATE.start_main_~k~5), 23829#(<= 22 ULTIMATE.start_main_~k~5), 23830#(<= 23 ULTIMATE.start_main_~k~5), 23831#(<= 24 ULTIMATE.start_main_~k~5), 23832#(<= 25 ULTIMATE.start_main_~k~5), 23833#(<= 26 ULTIMATE.start_main_~k~5), 23834#(<= 27 ULTIMATE.start_main_~k~5), 23835#(<= 28 ULTIMATE.start_main_~k~5), 23836#(<= 29 ULTIMATE.start_main_~k~5), 23837#(<= 30 ULTIMATE.start_main_~k~5), 23838#(<= 31 ULTIMATE.start_main_~k~5), 23839#(<= 32 ULTIMATE.start_main_~k~5), 23840#(<= 33 ULTIMATE.start_main_~k~5), 23841#(<= 34 ULTIMATE.start_main_~k~5), 23842#(<= 35 ULTIMATE.start_main_~k~5), 23843#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 23805#true, 23806#false, 23807#(<= 0 ULTIMATE.start_main_~k~5)] [2018-07-23 13:41:06,368 INFO L134 CoverageAnalysis]: Checked inductivity of 1820 backedges. 630 proven. 1190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:06,368 INFO L450 AbstractCegarLoop]: Interpolant automaton has 39 states [2018-07-23 13:41:06,369 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2018-07-23 13:41:06,369 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=705, Invalid=777, Unknown=0, NotChecked=0, Total=1482 [2018-07-23 13:41:06,369 INFO L87 Difference]: Start difference. First operand 109 states and 110 transitions. Second operand 39 states. [2018-07-23 13:41:06,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:06,527 INFO L93 Difference]: Finished difference Result 117 states and 118 transitions. [2018-07-23 13:41:06,527 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2018-07-23 13:41:06,527 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 108 [2018-07-23 13:41:06,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:06,528 INFO L225 Difference]: With dead ends: 117 [2018-07-23 13:41:06,528 INFO L226 Difference]: Without dead ends: 115 [2018-07-23 13:41:06,529 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1260 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=2109, Invalid=3441, Unknown=0, NotChecked=0, Total=5550 [2018-07-23 13:41:06,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2018-07-23 13:41:06,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 111. [2018-07-23 13:41:06,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2018-07-23 13:41:06,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 112 transitions. [2018-07-23 13:41:06,543 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 112 transitions. Word has length 108 [2018-07-23 13:41:06,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:06,543 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 112 transitions. [2018-07-23 13:41:06,543 INFO L472 AbstractCegarLoop]: Interpolant automaton has 39 states. [2018-07-23 13:41:06,543 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 112 transitions. [2018-07-23 13:41:06,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2018-07-23 13:41:06,544 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:06,544 INFO L357 BasicCegarLoop]: trace histogram [36, 35, 35, 1, 1, 1, 1] [2018-07-23 13:41:06,545 INFO L414 AbstractCegarLoop]: === Iteration 71 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:06,545 INFO L82 PathProgramCache]: Analyzing trace with hash 1483602618, now seen corresponding path program 69 times [2018-07-23 13:41:06,545 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:06,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:06,727 INFO L134 CoverageAnalysis]: Checked inductivity of 1890 backedges. 1260 proven. 630 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:06,727 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:06,728 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [73] total 73 [2018-07-23 13:41:06,728 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:06,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:06,728 INFO L185 omatonBuilderFactory]: Interpolants [24372#true, 24373#false, 24374#(<= ULTIMATE.start_main_~i~5 0), 24375#(<= ULTIMATE.start_main_~i~5 1), 24376#(<= ULTIMATE.start_main_~i~5 2), 24377#(<= ULTIMATE.start_main_~i~5 3), 24378#(<= ULTIMATE.start_main_~i~5 4), 24379#(<= ULTIMATE.start_main_~i~5 5), 24380#(<= ULTIMATE.start_main_~i~5 6), 24381#(<= ULTIMATE.start_main_~i~5 7), 24382#(<= ULTIMATE.start_main_~i~5 8), 24383#(<= ULTIMATE.start_main_~i~5 9), 24384#(<= ULTIMATE.start_main_~i~5 10), 24385#(<= ULTIMATE.start_main_~i~5 11), 24386#(<= ULTIMATE.start_main_~i~5 12), 24387#(<= ULTIMATE.start_main_~i~5 13), 24388#(<= ULTIMATE.start_main_~i~5 14), 24389#(<= ULTIMATE.start_main_~i~5 15), 24390#(<= ULTIMATE.start_main_~i~5 16), 24391#(<= ULTIMATE.start_main_~i~5 17), 24392#(<= ULTIMATE.start_main_~i~5 18), 24393#(<= ULTIMATE.start_main_~i~5 19), 24394#(<= ULTIMATE.start_main_~i~5 20), 24395#(<= ULTIMATE.start_main_~i~5 21), 24396#(<= ULTIMATE.start_main_~i~5 22), 24397#(<= ULTIMATE.start_main_~i~5 23), 24398#(<= ULTIMATE.start_main_~i~5 24), 24399#(<= ULTIMATE.start_main_~i~5 25), 24400#(<= ULTIMATE.start_main_~i~5 26), 24401#(<= ULTIMATE.start_main_~i~5 27), 24402#(<= ULTIMATE.start_main_~i~5 28), 24403#(<= ULTIMATE.start_main_~i~5 29), 24404#(<= ULTIMATE.start_main_~i~5 30), 24405#(<= ULTIMATE.start_main_~i~5 31), 24406#(<= ULTIMATE.start_main_~i~5 32), 24407#(<= ULTIMATE.start_main_~i~5 33), 24408#(<= ULTIMATE.start_main_~i~5 34), 24409#(<= ULTIMATE.start_main_~i~5 35), 24410#(<= ULTIMATE.start_main_~j~5 35), 24411#(<= ULTIMATE.start_main_~j~5 34), 24412#(<= ULTIMATE.start_main_~j~5 33), 24413#(<= ULTIMATE.start_main_~j~5 32), 24414#(<= ULTIMATE.start_main_~j~5 31), 24415#(<= ULTIMATE.start_main_~j~5 30), 24416#(<= ULTIMATE.start_main_~j~5 29), 24417#(<= ULTIMATE.start_main_~j~5 28), 24418#(<= ULTIMATE.start_main_~j~5 27), 24419#(<= ULTIMATE.start_main_~j~5 26), 24420#(<= ULTIMATE.start_main_~j~5 25), 24421#(<= ULTIMATE.start_main_~j~5 24), 24422#(<= ULTIMATE.start_main_~j~5 23), 24423#(<= ULTIMATE.start_main_~j~5 22), 24424#(<= ULTIMATE.start_main_~j~5 21), 24425#(<= ULTIMATE.start_main_~j~5 20), 24426#(<= ULTIMATE.start_main_~j~5 19), 24427#(<= ULTIMATE.start_main_~j~5 18), 24428#(<= ULTIMATE.start_main_~j~5 17), 24429#(<= ULTIMATE.start_main_~j~5 16), 24430#(<= ULTIMATE.start_main_~j~5 15), 24431#(<= ULTIMATE.start_main_~j~5 14), 24432#(<= ULTIMATE.start_main_~j~5 13), 24433#(<= ULTIMATE.start_main_~j~5 12), 24434#(<= ULTIMATE.start_main_~j~5 11), 24435#(<= ULTIMATE.start_main_~j~5 10), 24436#(<= ULTIMATE.start_main_~j~5 9), 24437#(<= ULTIMATE.start_main_~j~5 8), 24438#(<= ULTIMATE.start_main_~j~5 7), 24439#(<= ULTIMATE.start_main_~j~5 6), 24440#(<= ULTIMATE.start_main_~j~5 5), 24441#(<= ULTIMATE.start_main_~j~5 4), 24442#(<= ULTIMATE.start_main_~j~5 3), 24443#(<= ULTIMATE.start_main_~j~5 2), 24444#(<= ULTIMATE.start_main_~j~5 1), 24445#(<= ULTIMATE.start_main_~j~5 0)] [2018-07-23 13:41:06,729 INFO L134 CoverageAnalysis]: Checked inductivity of 1890 backedges. 1260 proven. 630 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:06,729 INFO L450 AbstractCegarLoop]: Interpolant automaton has 74 states [2018-07-23 13:41:06,731 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2018-07-23 13:41:06,732 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1405, Invalid=3997, Unknown=0, NotChecked=0, Total=5402 [2018-07-23 13:41:06,732 INFO L87 Difference]: Start difference. First operand 111 states and 112 transitions. Second operand 74 states. [2018-07-23 13:41:07,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:07,173 INFO L93 Difference]: Finished difference Result 187 states and 189 transitions. [2018-07-23 13:41:07,173 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2018-07-23 13:41:07,173 INFO L78 Accepts]: Start accepts. Automaton has 74 states. Word has length 110 [2018-07-23 13:41:07,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:07,174 INFO L225 Difference]: With dead ends: 187 [2018-07-23 13:41:07,174 INFO L226 Difference]: Without dead ends: 112 [2018-07-23 13:41:07,176 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1855 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=2809, Invalid=9181, Unknown=0, NotChecked=0, Total=11990 [2018-07-23 13:41:07,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2018-07-23 13:41:07,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2018-07-23 13:41:07,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2018-07-23 13:41:07,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 113 transitions. [2018-07-23 13:41:07,188 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 113 transitions. Word has length 110 [2018-07-23 13:41:07,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:07,189 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 113 transitions. [2018-07-23 13:41:07,189 INFO L472 AbstractCegarLoop]: Interpolant automaton has 74 states. [2018-07-23 13:41:07,189 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 113 transitions. [2018-07-23 13:41:07,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-07-23 13:41:07,189 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:07,190 INFO L357 BasicCegarLoop]: trace histogram [36, 36, 35, 1, 1, 1, 1] [2018-07-23 13:41:07,190 INFO L414 AbstractCegarLoop]: === Iteration 72 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:07,190 INFO L82 PathProgramCache]: Analyzing trace with hash -637930893, now seen corresponding path program 70 times [2018-07-23 13:41:07,190 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:07,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:07,315 INFO L134 CoverageAnalysis]: Checked inductivity of 1926 backedges. 666 proven. 1260 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:07,315 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:07,315 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [39] total 39 [2018-07-23 13:41:07,315 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:07,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:07,316 INFO L185 omatonBuilderFactory]: Interpolants [25152#(<= 34 ULTIMATE.start_main_~k~5), 25153#(<= 35 ULTIMATE.start_main_~k~5), 25154#(<= 36 ULTIMATE.start_main_~k~5), 25155#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 25116#true, 25117#false, 25118#(<= 0 ULTIMATE.start_main_~k~5), 25119#(<= 1 ULTIMATE.start_main_~k~5), 25120#(<= 2 ULTIMATE.start_main_~k~5), 25121#(<= 3 ULTIMATE.start_main_~k~5), 25122#(<= 4 ULTIMATE.start_main_~k~5), 25123#(<= 5 ULTIMATE.start_main_~k~5), 25124#(<= 6 ULTIMATE.start_main_~k~5), 25125#(<= 7 ULTIMATE.start_main_~k~5), 25126#(<= 8 ULTIMATE.start_main_~k~5), 25127#(<= 9 ULTIMATE.start_main_~k~5), 25128#(<= 10 ULTIMATE.start_main_~k~5), 25129#(<= 11 ULTIMATE.start_main_~k~5), 25130#(<= 12 ULTIMATE.start_main_~k~5), 25131#(<= 13 ULTIMATE.start_main_~k~5), 25132#(<= 14 ULTIMATE.start_main_~k~5), 25133#(<= 15 ULTIMATE.start_main_~k~5), 25134#(<= 16 ULTIMATE.start_main_~k~5), 25135#(<= 17 ULTIMATE.start_main_~k~5), 25136#(<= 18 ULTIMATE.start_main_~k~5), 25137#(<= 19 ULTIMATE.start_main_~k~5), 25138#(<= 20 ULTIMATE.start_main_~k~5), 25139#(<= 21 ULTIMATE.start_main_~k~5), 25140#(<= 22 ULTIMATE.start_main_~k~5), 25141#(<= 23 ULTIMATE.start_main_~k~5), 25142#(<= 24 ULTIMATE.start_main_~k~5), 25143#(<= 25 ULTIMATE.start_main_~k~5), 25144#(<= 26 ULTIMATE.start_main_~k~5), 25145#(<= 27 ULTIMATE.start_main_~k~5), 25146#(<= 28 ULTIMATE.start_main_~k~5), 25147#(<= 29 ULTIMATE.start_main_~k~5), 25148#(<= 30 ULTIMATE.start_main_~k~5), 25149#(<= 31 ULTIMATE.start_main_~k~5), 25150#(<= 32 ULTIMATE.start_main_~k~5), 25151#(<= 33 ULTIMATE.start_main_~k~5)] [2018-07-23 13:41:07,316 INFO L134 CoverageAnalysis]: Checked inductivity of 1926 backedges. 666 proven. 1260 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:07,316 INFO L450 AbstractCegarLoop]: Interpolant automaton has 40 states [2018-07-23 13:41:07,317 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2018-07-23 13:41:07,317 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=743, Invalid=817, Unknown=0, NotChecked=0, Total=1560 [2018-07-23 13:41:07,317 INFO L87 Difference]: Start difference. First operand 112 states and 113 transitions. Second operand 40 states. [2018-07-23 13:41:07,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:07,448 INFO L93 Difference]: Finished difference Result 120 states and 121 transitions. [2018-07-23 13:41:07,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2018-07-23 13:41:07,448 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 111 [2018-07-23 13:41:07,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:07,449 INFO L225 Difference]: With dead ends: 120 [2018-07-23 13:41:07,449 INFO L226 Difference]: Without dead ends: 118 [2018-07-23 13:41:07,450 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1332 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=2223, Invalid=3629, Unknown=0, NotChecked=0, Total=5852 [2018-07-23 13:41:07,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2018-07-23 13:41:07,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 114. [2018-07-23 13:41:07,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2018-07-23 13:41:07,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 115 transitions. [2018-07-23 13:41:07,464 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 115 transitions. Word has length 111 [2018-07-23 13:41:07,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:07,465 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 115 transitions. [2018-07-23 13:41:07,465 INFO L472 AbstractCegarLoop]: Interpolant automaton has 40 states. [2018-07-23 13:41:07,465 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 115 transitions. [2018-07-23 13:41:07,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2018-07-23 13:41:07,465 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:07,466 INFO L357 BasicCegarLoop]: trace histogram [37, 36, 36, 1, 1, 1, 1] [2018-07-23 13:41:07,466 INFO L414 AbstractCegarLoop]: === Iteration 73 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:07,466 INFO L82 PathProgramCache]: Analyzing trace with hash 1128801179, now seen corresponding path program 71 times [2018-07-23 13:41:07,466 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:07,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:07,656 INFO L134 CoverageAnalysis]: Checked inductivity of 1998 backedges. 1332 proven. 666 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:07,657 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:07,657 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [75] total 75 [2018-07-23 13:41:07,657 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:07,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:07,658 INFO L185 omatonBuilderFactory]: Interpolants [25728#(<= ULTIMATE.start_main_~i~5 28), 25729#(<= ULTIMATE.start_main_~i~5 29), 25730#(<= ULTIMATE.start_main_~i~5 30), 25731#(<= ULTIMATE.start_main_~i~5 31), 25732#(<= ULTIMATE.start_main_~i~5 32), 25733#(<= ULTIMATE.start_main_~i~5 33), 25734#(<= ULTIMATE.start_main_~i~5 34), 25735#(<= ULTIMATE.start_main_~i~5 35), 25736#(<= ULTIMATE.start_main_~i~5 36), 25737#(<= ULTIMATE.start_main_~j~5 36), 25738#(<= ULTIMATE.start_main_~j~5 35), 25739#(<= ULTIMATE.start_main_~j~5 34), 25740#(<= ULTIMATE.start_main_~j~5 33), 25741#(<= ULTIMATE.start_main_~j~5 32), 25742#(<= ULTIMATE.start_main_~j~5 31), 25743#(<= ULTIMATE.start_main_~j~5 30), 25744#(<= ULTIMATE.start_main_~j~5 29), 25745#(<= ULTIMATE.start_main_~j~5 28), 25746#(<= ULTIMATE.start_main_~j~5 27), 25747#(<= ULTIMATE.start_main_~j~5 26), 25748#(<= ULTIMATE.start_main_~j~5 25), 25749#(<= ULTIMATE.start_main_~j~5 24), 25750#(<= ULTIMATE.start_main_~j~5 23), 25751#(<= ULTIMATE.start_main_~j~5 22), 25752#(<= ULTIMATE.start_main_~j~5 21), 25753#(<= ULTIMATE.start_main_~j~5 20), 25754#(<= ULTIMATE.start_main_~j~5 19), 25755#(<= ULTIMATE.start_main_~j~5 18), 25756#(<= ULTIMATE.start_main_~j~5 17), 25757#(<= ULTIMATE.start_main_~j~5 16), 25758#(<= ULTIMATE.start_main_~j~5 15), 25759#(<= ULTIMATE.start_main_~j~5 14), 25760#(<= ULTIMATE.start_main_~j~5 13), 25761#(<= ULTIMATE.start_main_~j~5 12), 25762#(<= ULTIMATE.start_main_~j~5 11), 25763#(<= ULTIMATE.start_main_~j~5 10), 25764#(<= ULTIMATE.start_main_~j~5 9), 25765#(<= ULTIMATE.start_main_~j~5 8), 25766#(<= ULTIMATE.start_main_~j~5 7), 25767#(<= ULTIMATE.start_main_~j~5 6), 25768#(<= ULTIMATE.start_main_~j~5 5), 25769#(<= ULTIMATE.start_main_~j~5 4), 25770#(<= ULTIMATE.start_main_~j~5 3), 25771#(<= ULTIMATE.start_main_~j~5 2), 25772#(<= ULTIMATE.start_main_~j~5 1), 25773#(<= ULTIMATE.start_main_~j~5 0), 25698#true, 25699#false, 25700#(<= ULTIMATE.start_main_~i~5 0), 25701#(<= ULTIMATE.start_main_~i~5 1), 25702#(<= ULTIMATE.start_main_~i~5 2), 25703#(<= ULTIMATE.start_main_~i~5 3), 25704#(<= ULTIMATE.start_main_~i~5 4), 25705#(<= ULTIMATE.start_main_~i~5 5), 25706#(<= ULTIMATE.start_main_~i~5 6), 25707#(<= ULTIMATE.start_main_~i~5 7), 25708#(<= ULTIMATE.start_main_~i~5 8), 25709#(<= ULTIMATE.start_main_~i~5 9), 25710#(<= ULTIMATE.start_main_~i~5 10), 25711#(<= ULTIMATE.start_main_~i~5 11), 25712#(<= ULTIMATE.start_main_~i~5 12), 25713#(<= ULTIMATE.start_main_~i~5 13), 25714#(<= ULTIMATE.start_main_~i~5 14), 25715#(<= ULTIMATE.start_main_~i~5 15), 25716#(<= ULTIMATE.start_main_~i~5 16), 25717#(<= ULTIMATE.start_main_~i~5 17), 25718#(<= ULTIMATE.start_main_~i~5 18), 25719#(<= ULTIMATE.start_main_~i~5 19), 25720#(<= ULTIMATE.start_main_~i~5 20), 25721#(<= ULTIMATE.start_main_~i~5 21), 25722#(<= ULTIMATE.start_main_~i~5 22), 25723#(<= ULTIMATE.start_main_~i~5 23), 25724#(<= ULTIMATE.start_main_~i~5 24), 25725#(<= ULTIMATE.start_main_~i~5 25), 25726#(<= ULTIMATE.start_main_~i~5 26), 25727#(<= ULTIMATE.start_main_~i~5 27)] [2018-07-23 13:41:07,658 INFO L134 CoverageAnalysis]: Checked inductivity of 1998 backedges. 1332 proven. 666 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:07,658 INFO L450 AbstractCegarLoop]: Interpolant automaton has 76 states [2018-07-23 13:41:07,659 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2018-07-23 13:41:07,659 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1481, Invalid=4219, Unknown=0, NotChecked=0, Total=5700 [2018-07-23 13:41:07,659 INFO L87 Difference]: Start difference. First operand 114 states and 115 transitions. Second operand 76 states. [2018-07-23 13:41:07,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:07,909 INFO L93 Difference]: Finished difference Result 192 states and 194 transitions. [2018-07-23 13:41:07,909 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2018-07-23 13:41:07,909 INFO L78 Accepts]: Start accepts. Automaton has 76 states. Word has length 113 [2018-07-23 13:41:07,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:07,910 INFO L225 Difference]: With dead ends: 192 [2018-07-23 13:41:07,911 INFO L226 Difference]: Without dead ends: 115 [2018-07-23 13:41:07,912 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1962 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=2961, Invalid=9695, Unknown=0, NotChecked=0, Total=12656 [2018-07-23 13:41:07,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2018-07-23 13:41:07,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2018-07-23 13:41:07,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2018-07-23 13:41:07,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 116 transitions. [2018-07-23 13:41:07,925 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 116 transitions. Word has length 113 [2018-07-23 13:41:07,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:07,926 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 116 transitions. [2018-07-23 13:41:07,926 INFO L472 AbstractCegarLoop]: Interpolant automaton has 76 states. [2018-07-23 13:41:07,926 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 116 transitions. [2018-07-23 13:41:07,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2018-07-23 13:41:07,926 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:07,927 INFO L357 BasicCegarLoop]: trace histogram [37, 37, 36, 1, 1, 1, 1] [2018-07-23 13:41:07,927 INFO L414 AbstractCegarLoop]: === Iteration 74 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:07,927 INFO L82 PathProgramCache]: Analyzing trace with hash -1032264382, now seen corresponding path program 72 times [2018-07-23 13:41:07,927 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:07,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:08,052 INFO L134 CoverageAnalysis]: Checked inductivity of 2035 backedges. 703 proven. 1332 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:08,052 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:08,052 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [40] total 40 [2018-07-23 13:41:08,052 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:08,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:08,053 INFO L185 omatonBuilderFactory]: Interpolants [26496#(<= 32 ULTIMATE.start_main_~k~5), 26497#(<= 33 ULTIMATE.start_main_~k~5), 26498#(<= 34 ULTIMATE.start_main_~k~5), 26499#(<= 35 ULTIMATE.start_main_~k~5), 26500#(<= 36 ULTIMATE.start_main_~k~5), 26501#(<= 37 ULTIMATE.start_main_~k~5), 26502#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 26462#true, 26463#false, 26464#(<= 0 ULTIMATE.start_main_~k~5), 26465#(<= 1 ULTIMATE.start_main_~k~5), 26466#(<= 2 ULTIMATE.start_main_~k~5), 26467#(<= 3 ULTIMATE.start_main_~k~5), 26468#(<= 4 ULTIMATE.start_main_~k~5), 26469#(<= 5 ULTIMATE.start_main_~k~5), 26470#(<= 6 ULTIMATE.start_main_~k~5), 26471#(<= 7 ULTIMATE.start_main_~k~5), 26472#(<= 8 ULTIMATE.start_main_~k~5), 26473#(<= 9 ULTIMATE.start_main_~k~5), 26474#(<= 10 ULTIMATE.start_main_~k~5), 26475#(<= 11 ULTIMATE.start_main_~k~5), 26476#(<= 12 ULTIMATE.start_main_~k~5), 26477#(<= 13 ULTIMATE.start_main_~k~5), 26478#(<= 14 ULTIMATE.start_main_~k~5), 26479#(<= 15 ULTIMATE.start_main_~k~5), 26480#(<= 16 ULTIMATE.start_main_~k~5), 26481#(<= 17 ULTIMATE.start_main_~k~5), 26482#(<= 18 ULTIMATE.start_main_~k~5), 26483#(<= 19 ULTIMATE.start_main_~k~5), 26484#(<= 20 ULTIMATE.start_main_~k~5), 26485#(<= 21 ULTIMATE.start_main_~k~5), 26486#(<= 22 ULTIMATE.start_main_~k~5), 26487#(<= 23 ULTIMATE.start_main_~k~5), 26488#(<= 24 ULTIMATE.start_main_~k~5), 26489#(<= 25 ULTIMATE.start_main_~k~5), 26490#(<= 26 ULTIMATE.start_main_~k~5), 26491#(<= 27 ULTIMATE.start_main_~k~5), 26492#(<= 28 ULTIMATE.start_main_~k~5), 26493#(<= 29 ULTIMATE.start_main_~k~5), 26494#(<= 30 ULTIMATE.start_main_~k~5), 26495#(<= 31 ULTIMATE.start_main_~k~5)] [2018-07-23 13:41:08,053 INFO L134 CoverageAnalysis]: Checked inductivity of 2035 backedges. 703 proven. 1332 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:08,054 INFO L450 AbstractCegarLoop]: Interpolant automaton has 41 states [2018-07-23 13:41:08,054 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2018-07-23 13:41:08,054 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=782, Invalid=858, Unknown=0, NotChecked=0, Total=1640 [2018-07-23 13:41:08,054 INFO L87 Difference]: Start difference. First operand 115 states and 116 transitions. Second operand 41 states. [2018-07-23 13:41:08,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:08,193 INFO L93 Difference]: Finished difference Result 123 states and 124 transitions. [2018-07-23 13:41:08,193 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2018-07-23 13:41:08,193 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 114 [2018-07-23 13:41:08,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:08,194 INFO L225 Difference]: With dead ends: 123 [2018-07-23 13:41:08,194 INFO L226 Difference]: Without dead ends: 121 [2018-07-23 13:41:08,195 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1406 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=2340, Invalid=3822, Unknown=0, NotChecked=0, Total=6162 [2018-07-23 13:41:08,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2018-07-23 13:41:08,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 117. [2018-07-23 13:41:08,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2018-07-23 13:41:08,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 118 transitions. [2018-07-23 13:41:08,210 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 118 transitions. Word has length 114 [2018-07-23 13:41:08,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:08,211 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 118 transitions. [2018-07-23 13:41:08,211 INFO L472 AbstractCegarLoop]: Interpolant automaton has 41 states. [2018-07-23 13:41:08,211 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 118 transitions. [2018-07-23 13:41:08,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2018-07-23 13:41:08,212 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:08,212 INFO L357 BasicCegarLoop]: trace histogram [38, 37, 37, 1, 1, 1, 1] [2018-07-23 13:41:08,212 INFO L414 AbstractCegarLoop]: === Iteration 75 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:08,212 INFO L82 PathProgramCache]: Analyzing trace with hash 131440298, now seen corresponding path program 73 times [2018-07-23 13:41:08,212 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:08,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:08,434 INFO L134 CoverageAnalysis]: Checked inductivity of 2109 backedges. 1406 proven. 703 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:08,434 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:08,435 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [77] total 77 [2018-07-23 13:41:08,435 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:08,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:08,436 INFO L185 omatonBuilderFactory]: Interpolants [27136#(<= ULTIMATE.start_main_~j~5 0), 27059#true, 27060#false, 27061#(<= ULTIMATE.start_main_~i~5 0), 27062#(<= ULTIMATE.start_main_~i~5 1), 27063#(<= ULTIMATE.start_main_~i~5 2), 27064#(<= ULTIMATE.start_main_~i~5 3), 27065#(<= ULTIMATE.start_main_~i~5 4), 27066#(<= ULTIMATE.start_main_~i~5 5), 27067#(<= ULTIMATE.start_main_~i~5 6), 27068#(<= ULTIMATE.start_main_~i~5 7), 27069#(<= ULTIMATE.start_main_~i~5 8), 27070#(<= ULTIMATE.start_main_~i~5 9), 27071#(<= ULTIMATE.start_main_~i~5 10), 27072#(<= ULTIMATE.start_main_~i~5 11), 27073#(<= ULTIMATE.start_main_~i~5 12), 27074#(<= ULTIMATE.start_main_~i~5 13), 27075#(<= ULTIMATE.start_main_~i~5 14), 27076#(<= ULTIMATE.start_main_~i~5 15), 27077#(<= ULTIMATE.start_main_~i~5 16), 27078#(<= ULTIMATE.start_main_~i~5 17), 27079#(<= ULTIMATE.start_main_~i~5 18), 27080#(<= ULTIMATE.start_main_~i~5 19), 27081#(<= ULTIMATE.start_main_~i~5 20), 27082#(<= ULTIMATE.start_main_~i~5 21), 27083#(<= ULTIMATE.start_main_~i~5 22), 27084#(<= ULTIMATE.start_main_~i~5 23), 27085#(<= ULTIMATE.start_main_~i~5 24), 27086#(<= ULTIMATE.start_main_~i~5 25), 27087#(<= ULTIMATE.start_main_~i~5 26), 27088#(<= ULTIMATE.start_main_~i~5 27), 27089#(<= ULTIMATE.start_main_~i~5 28), 27090#(<= ULTIMATE.start_main_~i~5 29), 27091#(<= ULTIMATE.start_main_~i~5 30), 27092#(<= ULTIMATE.start_main_~i~5 31), 27093#(<= ULTIMATE.start_main_~i~5 32), 27094#(<= ULTIMATE.start_main_~i~5 33), 27095#(<= ULTIMATE.start_main_~i~5 34), 27096#(<= ULTIMATE.start_main_~i~5 35), 27097#(<= ULTIMATE.start_main_~i~5 36), 27098#(<= ULTIMATE.start_main_~i~5 37), 27099#(<= ULTIMATE.start_main_~j~5 37), 27100#(<= ULTIMATE.start_main_~j~5 36), 27101#(<= ULTIMATE.start_main_~j~5 35), 27102#(<= ULTIMATE.start_main_~j~5 34), 27103#(<= ULTIMATE.start_main_~j~5 33), 27104#(<= ULTIMATE.start_main_~j~5 32), 27105#(<= ULTIMATE.start_main_~j~5 31), 27106#(<= ULTIMATE.start_main_~j~5 30), 27107#(<= ULTIMATE.start_main_~j~5 29), 27108#(<= ULTIMATE.start_main_~j~5 28), 27109#(<= ULTIMATE.start_main_~j~5 27), 27110#(<= ULTIMATE.start_main_~j~5 26), 27111#(<= ULTIMATE.start_main_~j~5 25), 27112#(<= ULTIMATE.start_main_~j~5 24), 27113#(<= ULTIMATE.start_main_~j~5 23), 27114#(<= ULTIMATE.start_main_~j~5 22), 27115#(<= ULTIMATE.start_main_~j~5 21), 27116#(<= ULTIMATE.start_main_~j~5 20), 27117#(<= ULTIMATE.start_main_~j~5 19), 27118#(<= ULTIMATE.start_main_~j~5 18), 27119#(<= ULTIMATE.start_main_~j~5 17), 27120#(<= ULTIMATE.start_main_~j~5 16), 27121#(<= ULTIMATE.start_main_~j~5 15), 27122#(<= ULTIMATE.start_main_~j~5 14), 27123#(<= ULTIMATE.start_main_~j~5 13), 27124#(<= ULTIMATE.start_main_~j~5 12), 27125#(<= ULTIMATE.start_main_~j~5 11), 27126#(<= ULTIMATE.start_main_~j~5 10), 27127#(<= ULTIMATE.start_main_~j~5 9), 27128#(<= ULTIMATE.start_main_~j~5 8), 27129#(<= ULTIMATE.start_main_~j~5 7), 27130#(<= ULTIMATE.start_main_~j~5 6), 27131#(<= ULTIMATE.start_main_~j~5 5), 27132#(<= ULTIMATE.start_main_~j~5 4), 27133#(<= ULTIMATE.start_main_~j~5 3), 27134#(<= ULTIMATE.start_main_~j~5 2), 27135#(<= ULTIMATE.start_main_~j~5 1)] [2018-07-23 13:41:08,436 INFO L134 CoverageAnalysis]: Checked inductivity of 2109 backedges. 1406 proven. 703 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:08,436 INFO L450 AbstractCegarLoop]: Interpolant automaton has 78 states [2018-07-23 13:41:08,437 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2018-07-23 13:41:08,437 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1559, Invalid=4447, Unknown=0, NotChecked=0, Total=6006 [2018-07-23 13:41:08,437 INFO L87 Difference]: Start difference. First operand 117 states and 118 transitions. Second operand 78 states. [2018-07-23 13:41:08,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:08,952 INFO L93 Difference]: Finished difference Result 197 states and 199 transitions. [2018-07-23 13:41:08,952 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2018-07-23 13:41:08,952 INFO L78 Accepts]: Start accepts. Automaton has 78 states. Word has length 116 [2018-07-23 13:41:08,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:08,953 INFO L225 Difference]: With dead ends: 197 [2018-07-23 13:41:08,954 INFO L226 Difference]: Without dead ends: 118 [2018-07-23 13:41:08,955 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2072 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3117, Invalid=10223, Unknown=0, NotChecked=0, Total=13340 [2018-07-23 13:41:08,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2018-07-23 13:41:08,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2018-07-23 13:41:08,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2018-07-23 13:41:08,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 119 transitions. [2018-07-23 13:41:08,969 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 119 transitions. Word has length 116 [2018-07-23 13:41:08,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:08,970 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 119 transitions. [2018-07-23 13:41:08,970 INFO L472 AbstractCegarLoop]: Interpolant automaton has 78 states. [2018-07-23 13:41:08,970 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 119 transitions. [2018-07-23 13:41:08,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-07-23 13:41:08,970 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:08,971 INFO L357 BasicCegarLoop]: trace histogram [38, 38, 37, 1, 1, 1, 1] [2018-07-23 13:41:08,971 INFO L414 AbstractCegarLoop]: === Iteration 76 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:08,971 INFO L82 PathProgramCache]: Analyzing trace with hash 1387079587, now seen corresponding path program 74 times [2018-07-23 13:41:08,971 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:09,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:09,108 INFO L134 CoverageAnalysis]: Checked inductivity of 2147 backedges. 741 proven. 1406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:09,108 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:09,108 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [41] total 41 [2018-07-23 13:41:09,109 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:09,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:09,109 INFO L185 omatonBuilderFactory]: Interpolants [27843#true, 27844#false, 27845#(<= 0 ULTIMATE.start_main_~k~5), 27846#(<= 1 ULTIMATE.start_main_~k~5), 27847#(<= 2 ULTIMATE.start_main_~k~5), 27848#(<= 3 ULTIMATE.start_main_~k~5), 27849#(<= 4 ULTIMATE.start_main_~k~5), 27850#(<= 5 ULTIMATE.start_main_~k~5), 27851#(<= 6 ULTIMATE.start_main_~k~5), 27852#(<= 7 ULTIMATE.start_main_~k~5), 27853#(<= 8 ULTIMATE.start_main_~k~5), 27854#(<= 9 ULTIMATE.start_main_~k~5), 27855#(<= 10 ULTIMATE.start_main_~k~5), 27856#(<= 11 ULTIMATE.start_main_~k~5), 27857#(<= 12 ULTIMATE.start_main_~k~5), 27858#(<= 13 ULTIMATE.start_main_~k~5), 27859#(<= 14 ULTIMATE.start_main_~k~5), 27860#(<= 15 ULTIMATE.start_main_~k~5), 27861#(<= 16 ULTIMATE.start_main_~k~5), 27862#(<= 17 ULTIMATE.start_main_~k~5), 27863#(<= 18 ULTIMATE.start_main_~k~5), 27864#(<= 19 ULTIMATE.start_main_~k~5), 27865#(<= 20 ULTIMATE.start_main_~k~5), 27866#(<= 21 ULTIMATE.start_main_~k~5), 27867#(<= 22 ULTIMATE.start_main_~k~5), 27868#(<= 23 ULTIMATE.start_main_~k~5), 27869#(<= 24 ULTIMATE.start_main_~k~5), 27870#(<= 25 ULTIMATE.start_main_~k~5), 27871#(<= 26 ULTIMATE.start_main_~k~5), 27872#(<= 27 ULTIMATE.start_main_~k~5), 27873#(<= 28 ULTIMATE.start_main_~k~5), 27874#(<= 29 ULTIMATE.start_main_~k~5), 27875#(<= 30 ULTIMATE.start_main_~k~5), 27876#(<= 31 ULTIMATE.start_main_~k~5), 27877#(<= 32 ULTIMATE.start_main_~k~5), 27878#(<= 33 ULTIMATE.start_main_~k~5), 27879#(<= 34 ULTIMATE.start_main_~k~5), 27880#(<= 35 ULTIMATE.start_main_~k~5), 27881#(<= 36 ULTIMATE.start_main_~k~5), 27882#(<= 37 ULTIMATE.start_main_~k~5), 27883#(<= 38 ULTIMATE.start_main_~k~5), 27884#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond)] [2018-07-23 13:41:09,110 INFO L134 CoverageAnalysis]: Checked inductivity of 2147 backedges. 741 proven. 1406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:09,110 INFO L450 AbstractCegarLoop]: Interpolant automaton has 42 states [2018-07-23 13:41:09,110 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2018-07-23 13:41:09,110 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=822, Invalid=900, Unknown=0, NotChecked=0, Total=1722 [2018-07-23 13:41:09,111 INFO L87 Difference]: Start difference. First operand 118 states and 119 transitions. Second operand 42 states. [2018-07-23 13:41:09,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:09,310 INFO L93 Difference]: Finished difference Result 126 states and 127 transitions. [2018-07-23 13:41:09,311 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2018-07-23 13:41:09,311 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 117 [2018-07-23 13:41:09,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:09,312 INFO L225 Difference]: With dead ends: 126 [2018-07-23 13:41:09,312 INFO L226 Difference]: Without dead ends: 124 [2018-07-23 13:41:09,312 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1482 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=2460, Invalid=4020, Unknown=0, NotChecked=0, Total=6480 [2018-07-23 13:41:09,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2018-07-23 13:41:09,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 120. [2018-07-23 13:41:09,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2018-07-23 13:41:09,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 121 transitions. [2018-07-23 13:41:09,328 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 121 transitions. Word has length 117 [2018-07-23 13:41:09,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:09,329 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 121 transitions. [2018-07-23 13:41:09,329 INFO L472 AbstractCegarLoop]: Interpolant automaton has 42 states. [2018-07-23 13:41:09,329 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 121 transitions. [2018-07-23 13:41:09,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2018-07-23 13:41:09,332 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:09,333 INFO L357 BasicCegarLoop]: trace histogram [39, 38, 38, 1, 1, 1, 1] [2018-07-23 13:41:09,333 INFO L414 AbstractCegarLoop]: === Iteration 77 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:09,333 INFO L82 PathProgramCache]: Analyzing trace with hash 1543687371, now seen corresponding path program 75 times [2018-07-23 13:41:09,333 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:09,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:09,530 INFO L134 CoverageAnalysis]: Checked inductivity of 2223 backedges. 1482 proven. 741 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:09,530 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:09,530 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [79] total 79 [2018-07-23 13:41:09,530 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:09,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:09,531 INFO L185 omatonBuilderFactory]: Interpolants [28455#true, 28456#false, 28457#(<= ULTIMATE.start_main_~i~5 0), 28458#(<= ULTIMATE.start_main_~i~5 1), 28459#(<= ULTIMATE.start_main_~i~5 2), 28460#(<= ULTIMATE.start_main_~i~5 3), 28461#(<= ULTIMATE.start_main_~i~5 4), 28462#(<= ULTIMATE.start_main_~i~5 5), 28463#(<= ULTIMATE.start_main_~i~5 6), 28464#(<= ULTIMATE.start_main_~i~5 7), 28465#(<= ULTIMATE.start_main_~i~5 8), 28466#(<= ULTIMATE.start_main_~i~5 9), 28467#(<= ULTIMATE.start_main_~i~5 10), 28468#(<= ULTIMATE.start_main_~i~5 11), 28469#(<= ULTIMATE.start_main_~i~5 12), 28470#(<= ULTIMATE.start_main_~i~5 13), 28471#(<= ULTIMATE.start_main_~i~5 14), 28472#(<= ULTIMATE.start_main_~i~5 15), 28473#(<= ULTIMATE.start_main_~i~5 16), 28474#(<= ULTIMATE.start_main_~i~5 17), 28475#(<= ULTIMATE.start_main_~i~5 18), 28476#(<= ULTIMATE.start_main_~i~5 19), 28477#(<= ULTIMATE.start_main_~i~5 20), 28478#(<= ULTIMATE.start_main_~i~5 21), 28479#(<= ULTIMATE.start_main_~i~5 22), 28480#(<= ULTIMATE.start_main_~i~5 23), 28481#(<= ULTIMATE.start_main_~i~5 24), 28482#(<= ULTIMATE.start_main_~i~5 25), 28483#(<= ULTIMATE.start_main_~i~5 26), 28484#(<= ULTIMATE.start_main_~i~5 27), 28485#(<= ULTIMATE.start_main_~i~5 28), 28486#(<= ULTIMATE.start_main_~i~5 29), 28487#(<= ULTIMATE.start_main_~i~5 30), 28488#(<= ULTIMATE.start_main_~i~5 31), 28489#(<= ULTIMATE.start_main_~i~5 32), 28490#(<= ULTIMATE.start_main_~i~5 33), 28491#(<= ULTIMATE.start_main_~i~5 34), 28492#(<= ULTIMATE.start_main_~i~5 35), 28493#(<= ULTIMATE.start_main_~i~5 36), 28494#(<= ULTIMATE.start_main_~i~5 37), 28495#(<= ULTIMATE.start_main_~i~5 38), 28496#(<= ULTIMATE.start_main_~j~5 38), 28497#(<= ULTIMATE.start_main_~j~5 37), 28498#(<= ULTIMATE.start_main_~j~5 36), 28499#(<= ULTIMATE.start_main_~j~5 35), 28500#(<= ULTIMATE.start_main_~j~5 34), 28501#(<= ULTIMATE.start_main_~j~5 33), 28502#(<= ULTIMATE.start_main_~j~5 32), 28503#(<= ULTIMATE.start_main_~j~5 31), 28504#(<= ULTIMATE.start_main_~j~5 30), 28505#(<= ULTIMATE.start_main_~j~5 29), 28506#(<= ULTIMATE.start_main_~j~5 28), 28507#(<= ULTIMATE.start_main_~j~5 27), 28508#(<= ULTIMATE.start_main_~j~5 26), 28509#(<= ULTIMATE.start_main_~j~5 25), 28510#(<= ULTIMATE.start_main_~j~5 24), 28511#(<= ULTIMATE.start_main_~j~5 23), 28512#(<= ULTIMATE.start_main_~j~5 22), 28513#(<= ULTIMATE.start_main_~j~5 21), 28514#(<= ULTIMATE.start_main_~j~5 20), 28515#(<= ULTIMATE.start_main_~j~5 19), 28516#(<= ULTIMATE.start_main_~j~5 18), 28517#(<= ULTIMATE.start_main_~j~5 17), 28518#(<= ULTIMATE.start_main_~j~5 16), 28519#(<= ULTIMATE.start_main_~j~5 15), 28520#(<= ULTIMATE.start_main_~j~5 14), 28521#(<= ULTIMATE.start_main_~j~5 13), 28522#(<= ULTIMATE.start_main_~j~5 12), 28523#(<= ULTIMATE.start_main_~j~5 11), 28524#(<= ULTIMATE.start_main_~j~5 10), 28525#(<= ULTIMATE.start_main_~j~5 9), 28526#(<= ULTIMATE.start_main_~j~5 8), 28527#(<= ULTIMATE.start_main_~j~5 7), 28528#(<= ULTIMATE.start_main_~j~5 6), 28529#(<= ULTIMATE.start_main_~j~5 5), 28530#(<= ULTIMATE.start_main_~j~5 4), 28531#(<= ULTIMATE.start_main_~j~5 3), 28532#(<= ULTIMATE.start_main_~j~5 2), 28533#(<= ULTIMATE.start_main_~j~5 1), 28534#(<= ULTIMATE.start_main_~j~5 0)] [2018-07-23 13:41:09,531 INFO L134 CoverageAnalysis]: Checked inductivity of 2223 backedges. 1482 proven. 741 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:09,532 INFO L450 AbstractCegarLoop]: Interpolant automaton has 80 states [2018-07-23 13:41:09,532 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2018-07-23 13:41:09,533 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1639, Invalid=4681, Unknown=0, NotChecked=0, Total=6320 [2018-07-23 13:41:09,533 INFO L87 Difference]: Start difference. First operand 120 states and 121 transitions. Second operand 80 states. [2018-07-23 13:41:09,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:09,962 INFO L93 Difference]: Finished difference Result 202 states and 204 transitions. [2018-07-23 13:41:09,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2018-07-23 13:41:09,962 INFO L78 Accepts]: Start accepts. Automaton has 80 states. Word has length 119 [2018-07-23 13:41:09,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:09,963 INFO L225 Difference]: With dead ends: 202 [2018-07-23 13:41:09,963 INFO L226 Difference]: Without dead ends: 121 [2018-07-23 13:41:09,965 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2185 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3277, Invalid=10765, Unknown=0, NotChecked=0, Total=14042 [2018-07-23 13:41:09,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2018-07-23 13:41:09,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2018-07-23 13:41:09,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2018-07-23 13:41:09,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 122 transitions. [2018-07-23 13:41:09,978 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 122 transitions. Word has length 119 [2018-07-23 13:41:09,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:09,978 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 122 transitions. [2018-07-23 13:41:09,978 INFO L472 AbstractCegarLoop]: Interpolant automaton has 80 states. [2018-07-23 13:41:09,978 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 122 transitions. [2018-07-23 13:41:09,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2018-07-23 13:41:09,979 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:09,979 INFO L357 BasicCegarLoop]: trace histogram [39, 39, 38, 1, 1, 1, 1] [2018-07-23 13:41:09,980 INFO L414 AbstractCegarLoop]: === Iteration 78 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:09,980 INFO L82 PathProgramCache]: Analyzing trace with hash -871402190, now seen corresponding path program 76 times [2018-07-23 13:41:09,980 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:10,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:10,121 INFO L134 CoverageAnalysis]: Checked inductivity of 2262 backedges. 780 proven. 1482 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:10,121 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:10,121 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [42] total 42 [2018-07-23 13:41:10,121 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:10,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:10,122 INFO L185 omatonBuilderFactory]: Interpolants [29259#true, 29260#false, 29261#(<= 0 ULTIMATE.start_main_~k~5), 29262#(<= 1 ULTIMATE.start_main_~k~5), 29263#(<= 2 ULTIMATE.start_main_~k~5), 29264#(<= 3 ULTIMATE.start_main_~k~5), 29265#(<= 4 ULTIMATE.start_main_~k~5), 29266#(<= 5 ULTIMATE.start_main_~k~5), 29267#(<= 6 ULTIMATE.start_main_~k~5), 29268#(<= 7 ULTIMATE.start_main_~k~5), 29269#(<= 8 ULTIMATE.start_main_~k~5), 29270#(<= 9 ULTIMATE.start_main_~k~5), 29271#(<= 10 ULTIMATE.start_main_~k~5), 29272#(<= 11 ULTIMATE.start_main_~k~5), 29273#(<= 12 ULTIMATE.start_main_~k~5), 29274#(<= 13 ULTIMATE.start_main_~k~5), 29275#(<= 14 ULTIMATE.start_main_~k~5), 29276#(<= 15 ULTIMATE.start_main_~k~5), 29277#(<= 16 ULTIMATE.start_main_~k~5), 29278#(<= 17 ULTIMATE.start_main_~k~5), 29279#(<= 18 ULTIMATE.start_main_~k~5), 29280#(<= 19 ULTIMATE.start_main_~k~5), 29281#(<= 20 ULTIMATE.start_main_~k~5), 29282#(<= 21 ULTIMATE.start_main_~k~5), 29283#(<= 22 ULTIMATE.start_main_~k~5), 29284#(<= 23 ULTIMATE.start_main_~k~5), 29285#(<= 24 ULTIMATE.start_main_~k~5), 29286#(<= 25 ULTIMATE.start_main_~k~5), 29287#(<= 26 ULTIMATE.start_main_~k~5), 29288#(<= 27 ULTIMATE.start_main_~k~5), 29289#(<= 28 ULTIMATE.start_main_~k~5), 29290#(<= 29 ULTIMATE.start_main_~k~5), 29291#(<= 30 ULTIMATE.start_main_~k~5), 29292#(<= 31 ULTIMATE.start_main_~k~5), 29293#(<= 32 ULTIMATE.start_main_~k~5), 29294#(<= 33 ULTIMATE.start_main_~k~5), 29295#(<= 34 ULTIMATE.start_main_~k~5), 29296#(<= 35 ULTIMATE.start_main_~k~5), 29297#(<= 36 ULTIMATE.start_main_~k~5), 29298#(<= 37 ULTIMATE.start_main_~k~5), 29299#(<= 38 ULTIMATE.start_main_~k~5), 29300#(<= 39 ULTIMATE.start_main_~k~5), 29301#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond)] [2018-07-23 13:41:10,123 INFO L134 CoverageAnalysis]: Checked inductivity of 2262 backedges. 780 proven. 1482 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:10,123 INFO L450 AbstractCegarLoop]: Interpolant automaton has 43 states [2018-07-23 13:41:10,123 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2018-07-23 13:41:10,124 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=863, Invalid=943, Unknown=0, NotChecked=0, Total=1806 [2018-07-23 13:41:10,124 INFO L87 Difference]: Start difference. First operand 121 states and 122 transitions. Second operand 43 states. [2018-07-23 13:41:10,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:10,274 INFO L93 Difference]: Finished difference Result 129 states and 130 transitions. [2018-07-23 13:41:10,274 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2018-07-23 13:41:10,275 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 120 [2018-07-23 13:41:10,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:10,276 INFO L225 Difference]: With dead ends: 129 [2018-07-23 13:41:10,276 INFO L226 Difference]: Without dead ends: 127 [2018-07-23 13:41:10,277 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1560 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=2583, Invalid=4223, Unknown=0, NotChecked=0, Total=6806 [2018-07-23 13:41:10,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2018-07-23 13:41:10,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 123. [2018-07-23 13:41:10,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2018-07-23 13:41:10,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 124 transitions. [2018-07-23 13:41:10,291 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 124 transitions. Word has length 120 [2018-07-23 13:41:10,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:10,292 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 124 transitions. [2018-07-23 13:41:10,292 INFO L472 AbstractCegarLoop]: Interpolant automaton has 43 states. [2018-07-23 13:41:10,292 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 124 transitions. [2018-07-23 13:41:10,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2018-07-23 13:41:10,292 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:10,293 INFO L357 BasicCegarLoop]: trace histogram [40, 39, 39, 1, 1, 1, 1] [2018-07-23 13:41:10,293 INFO L414 AbstractCegarLoop]: === Iteration 79 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:10,293 INFO L82 PathProgramCache]: Analyzing trace with hash 101184154, now seen corresponding path program 77 times [2018-07-23 13:41:10,293 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:10,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:10,520 INFO L134 CoverageAnalysis]: Checked inductivity of 2340 backedges. 1560 proven. 780 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:10,521 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:10,521 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [81] total 81 [2018-07-23 13:41:10,521 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:10,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:10,522 INFO L185 omatonBuilderFactory]: Interpolants [29952#(<= ULTIMATE.start_main_~j~5 15), 29953#(<= ULTIMATE.start_main_~j~5 14), 29954#(<= ULTIMATE.start_main_~j~5 13), 29955#(<= ULTIMATE.start_main_~j~5 12), 29956#(<= ULTIMATE.start_main_~j~5 11), 29957#(<= ULTIMATE.start_main_~j~5 10), 29958#(<= ULTIMATE.start_main_~j~5 9), 29959#(<= ULTIMATE.start_main_~j~5 8), 29960#(<= ULTIMATE.start_main_~j~5 7), 29961#(<= ULTIMATE.start_main_~j~5 6), 29962#(<= ULTIMATE.start_main_~j~5 5), 29963#(<= ULTIMATE.start_main_~j~5 4), 29964#(<= ULTIMATE.start_main_~j~5 3), 29965#(<= ULTIMATE.start_main_~j~5 2), 29966#(<= ULTIMATE.start_main_~j~5 1), 29967#(<= ULTIMATE.start_main_~j~5 0), 29886#true, 29887#false, 29888#(<= ULTIMATE.start_main_~i~5 0), 29889#(<= ULTIMATE.start_main_~i~5 1), 29890#(<= ULTIMATE.start_main_~i~5 2), 29891#(<= ULTIMATE.start_main_~i~5 3), 29892#(<= ULTIMATE.start_main_~i~5 4), 29893#(<= ULTIMATE.start_main_~i~5 5), 29894#(<= ULTIMATE.start_main_~i~5 6), 29895#(<= ULTIMATE.start_main_~i~5 7), 29896#(<= ULTIMATE.start_main_~i~5 8), 29897#(<= ULTIMATE.start_main_~i~5 9), 29898#(<= ULTIMATE.start_main_~i~5 10), 29899#(<= ULTIMATE.start_main_~i~5 11), 29900#(<= ULTIMATE.start_main_~i~5 12), 29901#(<= ULTIMATE.start_main_~i~5 13), 29902#(<= ULTIMATE.start_main_~i~5 14), 29903#(<= ULTIMATE.start_main_~i~5 15), 29904#(<= ULTIMATE.start_main_~i~5 16), 29905#(<= ULTIMATE.start_main_~i~5 17), 29906#(<= ULTIMATE.start_main_~i~5 18), 29907#(<= ULTIMATE.start_main_~i~5 19), 29908#(<= ULTIMATE.start_main_~i~5 20), 29909#(<= ULTIMATE.start_main_~i~5 21), 29910#(<= ULTIMATE.start_main_~i~5 22), 29911#(<= ULTIMATE.start_main_~i~5 23), 29912#(<= ULTIMATE.start_main_~i~5 24), 29913#(<= ULTIMATE.start_main_~i~5 25), 29914#(<= ULTIMATE.start_main_~i~5 26), 29915#(<= ULTIMATE.start_main_~i~5 27), 29916#(<= ULTIMATE.start_main_~i~5 28), 29917#(<= ULTIMATE.start_main_~i~5 29), 29918#(<= ULTIMATE.start_main_~i~5 30), 29919#(<= ULTIMATE.start_main_~i~5 31), 29920#(<= ULTIMATE.start_main_~i~5 32), 29921#(<= ULTIMATE.start_main_~i~5 33), 29922#(<= ULTIMATE.start_main_~i~5 34), 29923#(<= ULTIMATE.start_main_~i~5 35), 29924#(<= ULTIMATE.start_main_~i~5 36), 29925#(<= ULTIMATE.start_main_~i~5 37), 29926#(<= ULTIMATE.start_main_~i~5 38), 29927#(<= ULTIMATE.start_main_~i~5 39), 29928#(<= ULTIMATE.start_main_~j~5 39), 29929#(<= ULTIMATE.start_main_~j~5 38), 29930#(<= ULTIMATE.start_main_~j~5 37), 29931#(<= ULTIMATE.start_main_~j~5 36), 29932#(<= ULTIMATE.start_main_~j~5 35), 29933#(<= ULTIMATE.start_main_~j~5 34), 29934#(<= ULTIMATE.start_main_~j~5 33), 29935#(<= ULTIMATE.start_main_~j~5 32), 29936#(<= ULTIMATE.start_main_~j~5 31), 29937#(<= ULTIMATE.start_main_~j~5 30), 29938#(<= ULTIMATE.start_main_~j~5 29), 29939#(<= ULTIMATE.start_main_~j~5 28), 29940#(<= ULTIMATE.start_main_~j~5 27), 29941#(<= ULTIMATE.start_main_~j~5 26), 29942#(<= ULTIMATE.start_main_~j~5 25), 29943#(<= ULTIMATE.start_main_~j~5 24), 29944#(<= ULTIMATE.start_main_~j~5 23), 29945#(<= ULTIMATE.start_main_~j~5 22), 29946#(<= ULTIMATE.start_main_~j~5 21), 29947#(<= ULTIMATE.start_main_~j~5 20), 29948#(<= ULTIMATE.start_main_~j~5 19), 29949#(<= ULTIMATE.start_main_~j~5 18), 29950#(<= ULTIMATE.start_main_~j~5 17), 29951#(<= ULTIMATE.start_main_~j~5 16)] [2018-07-23 13:41:10,522 INFO L134 CoverageAnalysis]: Checked inductivity of 2340 backedges. 1560 proven. 780 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:10,522 INFO L450 AbstractCegarLoop]: Interpolant automaton has 82 states [2018-07-23 13:41:10,523 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2018-07-23 13:41:10,523 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1721, Invalid=4921, Unknown=0, NotChecked=0, Total=6642 [2018-07-23 13:41:10,523 INFO L87 Difference]: Start difference. First operand 123 states and 124 transitions. Second operand 82 states. [2018-07-23 13:41:10,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:10,961 INFO L93 Difference]: Finished difference Result 207 states and 209 transitions. [2018-07-23 13:41:10,961 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2018-07-23 13:41:10,961 INFO L78 Accepts]: Start accepts. Automaton has 82 states. Word has length 122 [2018-07-23 13:41:10,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:10,962 INFO L225 Difference]: With dead ends: 207 [2018-07-23 13:41:10,962 INFO L226 Difference]: Without dead ends: 124 [2018-07-23 13:41:10,964 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2301 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3441, Invalid=11321, Unknown=0, NotChecked=0, Total=14762 [2018-07-23 13:41:10,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2018-07-23 13:41:10,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2018-07-23 13:41:10,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2018-07-23 13:41:10,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 125 transitions. [2018-07-23 13:41:10,976 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 125 transitions. Word has length 122 [2018-07-23 13:41:10,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:10,976 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 125 transitions. [2018-07-23 13:41:10,976 INFO L472 AbstractCegarLoop]: Interpolant automaton has 82 states. [2018-07-23 13:41:10,977 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 125 transitions. [2018-07-23 13:41:10,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-07-23 13:41:10,977 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:10,977 INFO L357 BasicCegarLoop]: trace histogram [40, 40, 39, 1, 1, 1, 1] [2018-07-23 13:41:10,978 INFO L414 AbstractCegarLoop]: === Iteration 80 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:10,978 INFO L82 PathProgramCache]: Analyzing trace with hash 1460214995, now seen corresponding path program 78 times [2018-07-23 13:41:10,978 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:11,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:11,125 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 820 proven. 1560 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:11,126 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:11,126 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [43] total 43 [2018-07-23 13:41:11,126 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:11,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:11,127 INFO L185 omatonBuilderFactory]: Interpolants [30720#(<= 8 ULTIMATE.start_main_~k~5), 30721#(<= 9 ULTIMATE.start_main_~k~5), 30722#(<= 10 ULTIMATE.start_main_~k~5), 30723#(<= 11 ULTIMATE.start_main_~k~5), 30724#(<= 12 ULTIMATE.start_main_~k~5), 30725#(<= 13 ULTIMATE.start_main_~k~5), 30726#(<= 14 ULTIMATE.start_main_~k~5), 30727#(<= 15 ULTIMATE.start_main_~k~5), 30728#(<= 16 ULTIMATE.start_main_~k~5), 30729#(<= 17 ULTIMATE.start_main_~k~5), 30730#(<= 18 ULTIMATE.start_main_~k~5), 30731#(<= 19 ULTIMATE.start_main_~k~5), 30732#(<= 20 ULTIMATE.start_main_~k~5), 30733#(<= 21 ULTIMATE.start_main_~k~5), 30734#(<= 22 ULTIMATE.start_main_~k~5), 30735#(<= 23 ULTIMATE.start_main_~k~5), 30736#(<= 24 ULTIMATE.start_main_~k~5), 30737#(<= 25 ULTIMATE.start_main_~k~5), 30738#(<= 26 ULTIMATE.start_main_~k~5), 30739#(<= 27 ULTIMATE.start_main_~k~5), 30740#(<= 28 ULTIMATE.start_main_~k~5), 30741#(<= 29 ULTIMATE.start_main_~k~5), 30742#(<= 30 ULTIMATE.start_main_~k~5), 30743#(<= 31 ULTIMATE.start_main_~k~5), 30744#(<= 32 ULTIMATE.start_main_~k~5), 30745#(<= 33 ULTIMATE.start_main_~k~5), 30746#(<= 34 ULTIMATE.start_main_~k~5), 30747#(<= 35 ULTIMATE.start_main_~k~5), 30748#(<= 36 ULTIMATE.start_main_~k~5), 30749#(<= 37 ULTIMATE.start_main_~k~5), 30750#(<= 38 ULTIMATE.start_main_~k~5), 30751#(<= 39 ULTIMATE.start_main_~k~5), 30752#(<= 40 ULTIMATE.start_main_~k~5), 30753#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 30710#true, 30711#false, 30712#(<= 0 ULTIMATE.start_main_~k~5), 30713#(<= 1 ULTIMATE.start_main_~k~5), 30714#(<= 2 ULTIMATE.start_main_~k~5), 30715#(<= 3 ULTIMATE.start_main_~k~5), 30716#(<= 4 ULTIMATE.start_main_~k~5), 30717#(<= 5 ULTIMATE.start_main_~k~5), 30718#(<= 6 ULTIMATE.start_main_~k~5), 30719#(<= 7 ULTIMATE.start_main_~k~5)] [2018-07-23 13:41:11,127 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 820 proven. 1560 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:11,127 INFO L450 AbstractCegarLoop]: Interpolant automaton has 44 states [2018-07-23 13:41:11,128 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2018-07-23 13:41:11,128 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=905, Invalid=987, Unknown=0, NotChecked=0, Total=1892 [2018-07-23 13:41:11,128 INFO L87 Difference]: Start difference. First operand 124 states and 125 transitions. Second operand 44 states. [2018-07-23 13:41:11,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:11,281 INFO L93 Difference]: Finished difference Result 132 states and 133 transitions. [2018-07-23 13:41:11,281 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2018-07-23 13:41:11,282 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 123 [2018-07-23 13:41:11,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:11,283 INFO L225 Difference]: With dead ends: 132 [2018-07-23 13:41:11,283 INFO L226 Difference]: Without dead ends: 130 [2018-07-23 13:41:11,284 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1640 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=2709, Invalid=4431, Unknown=0, NotChecked=0, Total=7140 [2018-07-23 13:41:11,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2018-07-23 13:41:11,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 126. [2018-07-23 13:41:11,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2018-07-23 13:41:11,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 127 transitions. [2018-07-23 13:41:11,298 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 127 transitions. Word has length 123 [2018-07-23 13:41:11,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:11,298 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 127 transitions. [2018-07-23 13:41:11,298 INFO L472 AbstractCegarLoop]: Interpolant automaton has 44 states. [2018-07-23 13:41:11,298 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 127 transitions. [2018-07-23 13:41:11,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-07-23 13:41:11,299 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:11,299 INFO L357 BasicCegarLoop]: trace histogram [41, 40, 40, 1, 1, 1, 1] [2018-07-23 13:41:11,299 INFO L414 AbstractCegarLoop]: === Iteration 81 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:11,300 INFO L82 PathProgramCache]: Analyzing trace with hash -1187629573, now seen corresponding path program 79 times [2018-07-23 13:41:11,300 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:11,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:11,564 INFO L134 CoverageAnalysis]: Checked inductivity of 2460 backedges. 1640 proven. 820 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:11,564 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:11,565 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [83] total 83 [2018-07-23 13:41:11,565 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:11,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:11,566 INFO L185 omatonBuilderFactory]: Interpolants [31360#(<= ULTIMATE.start_main_~i~5 6), 31361#(<= ULTIMATE.start_main_~i~5 7), 31362#(<= ULTIMATE.start_main_~i~5 8), 31363#(<= ULTIMATE.start_main_~i~5 9), 31364#(<= ULTIMATE.start_main_~i~5 10), 31365#(<= ULTIMATE.start_main_~i~5 11), 31366#(<= ULTIMATE.start_main_~i~5 12), 31367#(<= ULTIMATE.start_main_~i~5 13), 31368#(<= ULTIMATE.start_main_~i~5 14), 31369#(<= ULTIMATE.start_main_~i~5 15), 31370#(<= ULTIMATE.start_main_~i~5 16), 31371#(<= ULTIMATE.start_main_~i~5 17), 31372#(<= ULTIMATE.start_main_~i~5 18), 31373#(<= ULTIMATE.start_main_~i~5 19), 31374#(<= ULTIMATE.start_main_~i~5 20), 31375#(<= ULTIMATE.start_main_~i~5 21), 31376#(<= ULTIMATE.start_main_~i~5 22), 31377#(<= ULTIMATE.start_main_~i~5 23), 31378#(<= ULTIMATE.start_main_~i~5 24), 31379#(<= ULTIMATE.start_main_~i~5 25), 31380#(<= ULTIMATE.start_main_~i~5 26), 31381#(<= ULTIMATE.start_main_~i~5 27), 31382#(<= ULTIMATE.start_main_~i~5 28), 31383#(<= ULTIMATE.start_main_~i~5 29), 31384#(<= ULTIMATE.start_main_~i~5 30), 31385#(<= ULTIMATE.start_main_~i~5 31), 31386#(<= ULTIMATE.start_main_~i~5 32), 31387#(<= ULTIMATE.start_main_~i~5 33), 31388#(<= ULTIMATE.start_main_~i~5 34), 31389#(<= ULTIMATE.start_main_~i~5 35), 31390#(<= ULTIMATE.start_main_~i~5 36), 31391#(<= ULTIMATE.start_main_~i~5 37), 31392#(<= ULTIMATE.start_main_~i~5 38), 31393#(<= ULTIMATE.start_main_~i~5 39), 31394#(<= ULTIMATE.start_main_~i~5 40), 31395#(<= ULTIMATE.start_main_~j~5 40), 31396#(<= ULTIMATE.start_main_~j~5 39), 31397#(<= ULTIMATE.start_main_~j~5 38), 31398#(<= ULTIMATE.start_main_~j~5 37), 31399#(<= ULTIMATE.start_main_~j~5 36), 31400#(<= ULTIMATE.start_main_~j~5 35), 31401#(<= ULTIMATE.start_main_~j~5 34), 31402#(<= ULTIMATE.start_main_~j~5 33), 31403#(<= ULTIMATE.start_main_~j~5 32), 31404#(<= ULTIMATE.start_main_~j~5 31), 31405#(<= ULTIMATE.start_main_~j~5 30), 31406#(<= ULTIMATE.start_main_~j~5 29), 31407#(<= ULTIMATE.start_main_~j~5 28), 31408#(<= ULTIMATE.start_main_~j~5 27), 31409#(<= ULTIMATE.start_main_~j~5 26), 31410#(<= ULTIMATE.start_main_~j~5 25), 31411#(<= ULTIMATE.start_main_~j~5 24), 31412#(<= ULTIMATE.start_main_~j~5 23), 31413#(<= ULTIMATE.start_main_~j~5 22), 31414#(<= ULTIMATE.start_main_~j~5 21), 31415#(<= ULTIMATE.start_main_~j~5 20), 31416#(<= ULTIMATE.start_main_~j~5 19), 31417#(<= ULTIMATE.start_main_~j~5 18), 31418#(<= ULTIMATE.start_main_~j~5 17), 31419#(<= ULTIMATE.start_main_~j~5 16), 31420#(<= ULTIMATE.start_main_~j~5 15), 31421#(<= ULTIMATE.start_main_~j~5 14), 31422#(<= ULTIMATE.start_main_~j~5 13), 31423#(<= ULTIMATE.start_main_~j~5 12), 31424#(<= ULTIMATE.start_main_~j~5 11), 31425#(<= ULTIMATE.start_main_~j~5 10), 31426#(<= ULTIMATE.start_main_~j~5 9), 31427#(<= ULTIMATE.start_main_~j~5 8), 31428#(<= ULTIMATE.start_main_~j~5 7), 31429#(<= ULTIMATE.start_main_~j~5 6), 31430#(<= ULTIMATE.start_main_~j~5 5), 31431#(<= ULTIMATE.start_main_~j~5 4), 31432#(<= ULTIMATE.start_main_~j~5 3), 31433#(<= ULTIMATE.start_main_~j~5 2), 31434#(<= ULTIMATE.start_main_~j~5 1), 31435#(<= ULTIMATE.start_main_~j~5 0), 31352#true, 31353#false, 31354#(<= ULTIMATE.start_main_~i~5 0), 31355#(<= ULTIMATE.start_main_~i~5 1), 31356#(<= ULTIMATE.start_main_~i~5 2), 31357#(<= ULTIMATE.start_main_~i~5 3), 31358#(<= ULTIMATE.start_main_~i~5 4), 31359#(<= ULTIMATE.start_main_~i~5 5)] [2018-07-23 13:41:11,566 INFO L134 CoverageAnalysis]: Checked inductivity of 2460 backedges. 1640 proven. 820 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:11,566 INFO L450 AbstractCegarLoop]: Interpolant automaton has 84 states [2018-07-23 13:41:11,567 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2018-07-23 13:41:11,567 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1805, Invalid=5167, Unknown=0, NotChecked=0, Total=6972 [2018-07-23 13:41:11,567 INFO L87 Difference]: Start difference. First operand 126 states and 127 transitions. Second operand 84 states. [2018-07-23 13:41:12,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:12,146 INFO L93 Difference]: Finished difference Result 212 states and 214 transitions. [2018-07-23 13:41:12,146 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2018-07-23 13:41:12,146 INFO L78 Accepts]: Start accepts. Automaton has 84 states. Word has length 125 [2018-07-23 13:41:12,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:12,147 INFO L225 Difference]: With dead ends: 212 [2018-07-23 13:41:12,147 INFO L226 Difference]: Without dead ends: 127 [2018-07-23 13:41:12,149 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2420 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3609, Invalid=11891, Unknown=0, NotChecked=0, Total=15500 [2018-07-23 13:41:12,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2018-07-23 13:41:12,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2018-07-23 13:41:12,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2018-07-23 13:41:12,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 128 transitions. [2018-07-23 13:41:12,169 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 128 transitions. Word has length 125 [2018-07-23 13:41:12,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:12,170 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 128 transitions. [2018-07-23 13:41:12,170 INFO L472 AbstractCegarLoop]: Interpolant automaton has 84 states. [2018-07-23 13:41:12,170 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 128 transitions. [2018-07-23 13:41:12,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-07-23 13:41:12,171 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:12,171 INFO L357 BasicCegarLoop]: trace histogram [41, 41, 40, 1, 1, 1, 1] [2018-07-23 13:41:12,171 INFO L414 AbstractCegarLoop]: === Iteration 82 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:12,172 INFO L82 PathProgramCache]: Analyzing trace with hash 1338422562, now seen corresponding path program 80 times [2018-07-23 13:41:12,172 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:12,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:12,387 INFO L134 CoverageAnalysis]: Checked inductivity of 2501 backedges. 861 proven. 1640 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:12,387 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:12,387 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [44] total 44 [2018-07-23 13:41:12,387 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:12,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:12,388 INFO L185 omatonBuilderFactory]: Interpolants [32196#true, 32197#false, 32198#(<= 0 ULTIMATE.start_main_~k~5), 32199#(<= 1 ULTIMATE.start_main_~k~5), 32200#(<= 2 ULTIMATE.start_main_~k~5), 32201#(<= 3 ULTIMATE.start_main_~k~5), 32202#(<= 4 ULTIMATE.start_main_~k~5), 32203#(<= 5 ULTIMATE.start_main_~k~5), 32204#(<= 6 ULTIMATE.start_main_~k~5), 32205#(<= 7 ULTIMATE.start_main_~k~5), 32206#(<= 8 ULTIMATE.start_main_~k~5), 32207#(<= 9 ULTIMATE.start_main_~k~5), 32208#(<= 10 ULTIMATE.start_main_~k~5), 32209#(<= 11 ULTIMATE.start_main_~k~5), 32210#(<= 12 ULTIMATE.start_main_~k~5), 32211#(<= 13 ULTIMATE.start_main_~k~5), 32212#(<= 14 ULTIMATE.start_main_~k~5), 32213#(<= 15 ULTIMATE.start_main_~k~5), 32214#(<= 16 ULTIMATE.start_main_~k~5), 32215#(<= 17 ULTIMATE.start_main_~k~5), 32216#(<= 18 ULTIMATE.start_main_~k~5), 32217#(<= 19 ULTIMATE.start_main_~k~5), 32218#(<= 20 ULTIMATE.start_main_~k~5), 32219#(<= 21 ULTIMATE.start_main_~k~5), 32220#(<= 22 ULTIMATE.start_main_~k~5), 32221#(<= 23 ULTIMATE.start_main_~k~5), 32222#(<= 24 ULTIMATE.start_main_~k~5), 32223#(<= 25 ULTIMATE.start_main_~k~5), 32224#(<= 26 ULTIMATE.start_main_~k~5), 32225#(<= 27 ULTIMATE.start_main_~k~5), 32226#(<= 28 ULTIMATE.start_main_~k~5), 32227#(<= 29 ULTIMATE.start_main_~k~5), 32228#(<= 30 ULTIMATE.start_main_~k~5), 32229#(<= 31 ULTIMATE.start_main_~k~5), 32230#(<= 32 ULTIMATE.start_main_~k~5), 32231#(<= 33 ULTIMATE.start_main_~k~5), 32232#(<= 34 ULTIMATE.start_main_~k~5), 32233#(<= 35 ULTIMATE.start_main_~k~5), 32234#(<= 36 ULTIMATE.start_main_~k~5), 32235#(<= 37 ULTIMATE.start_main_~k~5), 32236#(<= 38 ULTIMATE.start_main_~k~5), 32237#(<= 39 ULTIMATE.start_main_~k~5), 32238#(<= 40 ULTIMATE.start_main_~k~5), 32239#(<= 41 ULTIMATE.start_main_~k~5), 32240#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond)] [2018-07-23 13:41:12,389 INFO L134 CoverageAnalysis]: Checked inductivity of 2501 backedges. 861 proven. 1640 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:12,389 INFO L450 AbstractCegarLoop]: Interpolant automaton has 45 states [2018-07-23 13:41:12,389 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2018-07-23 13:41:12,389 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=948, Invalid=1032, Unknown=0, NotChecked=0, Total=1980 [2018-07-23 13:41:12,390 INFO L87 Difference]: Start difference. First operand 127 states and 128 transitions. Second operand 45 states. [2018-07-23 13:41:12,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:12,593 INFO L93 Difference]: Finished difference Result 135 states and 136 transitions. [2018-07-23 13:41:12,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2018-07-23 13:41:12,594 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 126 [2018-07-23 13:41:12,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:12,595 INFO L225 Difference]: With dead ends: 135 [2018-07-23 13:41:12,595 INFO L226 Difference]: Without dead ends: 133 [2018-07-23 13:41:12,596 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1722 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=2838, Invalid=4644, Unknown=0, NotChecked=0, Total=7482 [2018-07-23 13:41:12,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2018-07-23 13:41:12,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 129. [2018-07-23 13:41:12,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2018-07-23 13:41:12,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 130 transitions. [2018-07-23 13:41:12,618 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 130 transitions. Word has length 126 [2018-07-23 13:41:12,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:12,618 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 130 transitions. [2018-07-23 13:41:12,618 INFO L472 AbstractCegarLoop]: Interpolant automaton has 45 states. [2018-07-23 13:41:12,618 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 130 transitions. [2018-07-23 13:41:12,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-07-23 13:41:12,619 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:12,619 INFO L357 BasicCegarLoop]: trace histogram [42, 41, 41, 1, 1, 1, 1] [2018-07-23 13:41:12,620 INFO L414 AbstractCegarLoop]: === Iteration 83 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:12,620 INFO L82 PathProgramCache]: Analyzing trace with hash 2028926602, now seen corresponding path program 81 times [2018-07-23 13:41:12,620 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:12,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:12,921 INFO L134 CoverageAnalysis]: Checked inductivity of 2583 backedges. 1722 proven. 861 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:12,922 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:12,922 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [85] total 85 [2018-07-23 13:41:12,922 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:12,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:12,923 INFO L185 omatonBuilderFactory]: Interpolants [32896#(<= ULTIMATE.start_main_~i~5 41), 32897#(<= ULTIMATE.start_main_~j~5 41), 32898#(<= ULTIMATE.start_main_~j~5 40), 32899#(<= ULTIMATE.start_main_~j~5 39), 32900#(<= ULTIMATE.start_main_~j~5 38), 32901#(<= ULTIMATE.start_main_~j~5 37), 32902#(<= ULTIMATE.start_main_~j~5 36), 32903#(<= ULTIMATE.start_main_~j~5 35), 32904#(<= ULTIMATE.start_main_~j~5 34), 32905#(<= ULTIMATE.start_main_~j~5 33), 32906#(<= ULTIMATE.start_main_~j~5 32), 32907#(<= ULTIMATE.start_main_~j~5 31), 32908#(<= ULTIMATE.start_main_~j~5 30), 32909#(<= ULTIMATE.start_main_~j~5 29), 32910#(<= ULTIMATE.start_main_~j~5 28), 32911#(<= ULTIMATE.start_main_~j~5 27), 32912#(<= ULTIMATE.start_main_~j~5 26), 32913#(<= ULTIMATE.start_main_~j~5 25), 32914#(<= ULTIMATE.start_main_~j~5 24), 32915#(<= ULTIMATE.start_main_~j~5 23), 32916#(<= ULTIMATE.start_main_~j~5 22), 32917#(<= ULTIMATE.start_main_~j~5 21), 32918#(<= ULTIMATE.start_main_~j~5 20), 32919#(<= ULTIMATE.start_main_~j~5 19), 32920#(<= ULTIMATE.start_main_~j~5 18), 32921#(<= ULTIMATE.start_main_~j~5 17), 32922#(<= ULTIMATE.start_main_~j~5 16), 32923#(<= ULTIMATE.start_main_~j~5 15), 32924#(<= ULTIMATE.start_main_~j~5 14), 32925#(<= ULTIMATE.start_main_~j~5 13), 32926#(<= ULTIMATE.start_main_~j~5 12), 32927#(<= ULTIMATE.start_main_~j~5 11), 32928#(<= ULTIMATE.start_main_~j~5 10), 32929#(<= ULTIMATE.start_main_~j~5 9), 32930#(<= ULTIMATE.start_main_~j~5 8), 32931#(<= ULTIMATE.start_main_~j~5 7), 32932#(<= ULTIMATE.start_main_~j~5 6), 32933#(<= ULTIMATE.start_main_~j~5 5), 32934#(<= ULTIMATE.start_main_~j~5 4), 32935#(<= ULTIMATE.start_main_~j~5 3), 32936#(<= ULTIMATE.start_main_~j~5 2), 32937#(<= ULTIMATE.start_main_~j~5 1), 32938#(<= ULTIMATE.start_main_~j~5 0), 32853#true, 32854#false, 32855#(<= ULTIMATE.start_main_~i~5 0), 32856#(<= ULTIMATE.start_main_~i~5 1), 32857#(<= ULTIMATE.start_main_~i~5 2), 32858#(<= ULTIMATE.start_main_~i~5 3), 32859#(<= ULTIMATE.start_main_~i~5 4), 32860#(<= ULTIMATE.start_main_~i~5 5), 32861#(<= ULTIMATE.start_main_~i~5 6), 32862#(<= ULTIMATE.start_main_~i~5 7), 32863#(<= ULTIMATE.start_main_~i~5 8), 32864#(<= ULTIMATE.start_main_~i~5 9), 32865#(<= ULTIMATE.start_main_~i~5 10), 32866#(<= ULTIMATE.start_main_~i~5 11), 32867#(<= ULTIMATE.start_main_~i~5 12), 32868#(<= ULTIMATE.start_main_~i~5 13), 32869#(<= ULTIMATE.start_main_~i~5 14), 32870#(<= ULTIMATE.start_main_~i~5 15), 32871#(<= ULTIMATE.start_main_~i~5 16), 32872#(<= ULTIMATE.start_main_~i~5 17), 32873#(<= ULTIMATE.start_main_~i~5 18), 32874#(<= ULTIMATE.start_main_~i~5 19), 32875#(<= ULTIMATE.start_main_~i~5 20), 32876#(<= ULTIMATE.start_main_~i~5 21), 32877#(<= ULTIMATE.start_main_~i~5 22), 32878#(<= ULTIMATE.start_main_~i~5 23), 32879#(<= ULTIMATE.start_main_~i~5 24), 32880#(<= ULTIMATE.start_main_~i~5 25), 32881#(<= ULTIMATE.start_main_~i~5 26), 32882#(<= ULTIMATE.start_main_~i~5 27), 32883#(<= ULTIMATE.start_main_~i~5 28), 32884#(<= ULTIMATE.start_main_~i~5 29), 32885#(<= ULTIMATE.start_main_~i~5 30), 32886#(<= ULTIMATE.start_main_~i~5 31), 32887#(<= ULTIMATE.start_main_~i~5 32), 32888#(<= ULTIMATE.start_main_~i~5 33), 32889#(<= ULTIMATE.start_main_~i~5 34), 32890#(<= ULTIMATE.start_main_~i~5 35), 32891#(<= ULTIMATE.start_main_~i~5 36), 32892#(<= ULTIMATE.start_main_~i~5 37), 32893#(<= ULTIMATE.start_main_~i~5 38), 32894#(<= ULTIMATE.start_main_~i~5 39), 32895#(<= ULTIMATE.start_main_~i~5 40)] [2018-07-23 13:41:12,923 INFO L134 CoverageAnalysis]: Checked inductivity of 2583 backedges. 1722 proven. 861 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:12,923 INFO L450 AbstractCegarLoop]: Interpolant automaton has 86 states [2018-07-23 13:41:12,924 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2018-07-23 13:41:12,924 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1891, Invalid=5419, Unknown=0, NotChecked=0, Total=7310 [2018-07-23 13:41:12,924 INFO L87 Difference]: Start difference. First operand 129 states and 130 transitions. Second operand 86 states. [2018-07-23 13:41:13,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:13,390 INFO L93 Difference]: Finished difference Result 217 states and 219 transitions. [2018-07-23 13:41:13,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2018-07-23 13:41:13,390 INFO L78 Accepts]: Start accepts. Automaton has 86 states. Word has length 128 [2018-07-23 13:41:13,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:13,391 INFO L225 Difference]: With dead ends: 217 [2018-07-23 13:41:13,391 INFO L226 Difference]: Without dead ends: 130 [2018-07-23 13:41:13,393 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2542 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3781, Invalid=12475, Unknown=0, NotChecked=0, Total=16256 [2018-07-23 13:41:13,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2018-07-23 13:41:13,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2018-07-23 13:41:13,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2018-07-23 13:41:13,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 131 transitions. [2018-07-23 13:41:13,405 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 131 transitions. Word has length 128 [2018-07-23 13:41:13,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:13,405 INFO L471 AbstractCegarLoop]: Abstraction has 130 states and 131 transitions. [2018-07-23 13:41:13,405 INFO L472 AbstractCegarLoop]: Interpolant automaton has 86 states. [2018-07-23 13:41:13,406 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 131 transitions. [2018-07-23 13:41:13,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-07-23 13:41:13,406 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:13,406 INFO L357 BasicCegarLoop]: trace histogram [42, 42, 41, 1, 1, 1, 1] [2018-07-23 13:41:13,406 INFO L414 AbstractCegarLoop]: === Iteration 84 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:13,407 INFO L82 PathProgramCache]: Analyzing trace with hash -768880125, now seen corresponding path program 82 times [2018-07-23 13:41:13,407 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:13,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:13,552 INFO L134 CoverageAnalysis]: Checked inductivity of 2625 backedges. 903 proven. 1722 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:13,552 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:13,553 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [45] total 45 [2018-07-23 13:41:13,553 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:13,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:13,554 INFO L185 omatonBuilderFactory]: Interpolants [33728#(<= 9 ULTIMATE.start_main_~k~5), 33729#(<= 10 ULTIMATE.start_main_~k~5), 33730#(<= 11 ULTIMATE.start_main_~k~5), 33731#(<= 12 ULTIMATE.start_main_~k~5), 33732#(<= 13 ULTIMATE.start_main_~k~5), 33733#(<= 14 ULTIMATE.start_main_~k~5), 33734#(<= 15 ULTIMATE.start_main_~k~5), 33735#(<= 16 ULTIMATE.start_main_~k~5), 33736#(<= 17 ULTIMATE.start_main_~k~5), 33737#(<= 18 ULTIMATE.start_main_~k~5), 33738#(<= 19 ULTIMATE.start_main_~k~5), 33739#(<= 20 ULTIMATE.start_main_~k~5), 33740#(<= 21 ULTIMATE.start_main_~k~5), 33741#(<= 22 ULTIMATE.start_main_~k~5), 33742#(<= 23 ULTIMATE.start_main_~k~5), 33743#(<= 24 ULTIMATE.start_main_~k~5), 33744#(<= 25 ULTIMATE.start_main_~k~5), 33745#(<= 26 ULTIMATE.start_main_~k~5), 33746#(<= 27 ULTIMATE.start_main_~k~5), 33747#(<= 28 ULTIMATE.start_main_~k~5), 33748#(<= 29 ULTIMATE.start_main_~k~5), 33749#(<= 30 ULTIMATE.start_main_~k~5), 33750#(<= 31 ULTIMATE.start_main_~k~5), 33751#(<= 32 ULTIMATE.start_main_~k~5), 33752#(<= 33 ULTIMATE.start_main_~k~5), 33753#(<= 34 ULTIMATE.start_main_~k~5), 33754#(<= 35 ULTIMATE.start_main_~k~5), 33755#(<= 36 ULTIMATE.start_main_~k~5), 33756#(<= 37 ULTIMATE.start_main_~k~5), 33757#(<= 38 ULTIMATE.start_main_~k~5), 33758#(<= 39 ULTIMATE.start_main_~k~5), 33759#(<= 40 ULTIMATE.start_main_~k~5), 33760#(<= 41 ULTIMATE.start_main_~k~5), 33761#(<= 42 ULTIMATE.start_main_~k~5), 33762#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 33717#true, 33718#false, 33719#(<= 0 ULTIMATE.start_main_~k~5), 33720#(<= 1 ULTIMATE.start_main_~k~5), 33721#(<= 2 ULTIMATE.start_main_~k~5), 33722#(<= 3 ULTIMATE.start_main_~k~5), 33723#(<= 4 ULTIMATE.start_main_~k~5), 33724#(<= 5 ULTIMATE.start_main_~k~5), 33725#(<= 6 ULTIMATE.start_main_~k~5), 33726#(<= 7 ULTIMATE.start_main_~k~5), 33727#(<= 8 ULTIMATE.start_main_~k~5)] [2018-07-23 13:41:13,554 INFO L134 CoverageAnalysis]: Checked inductivity of 2625 backedges. 903 proven. 1722 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:13,554 INFO L450 AbstractCegarLoop]: Interpolant automaton has 46 states [2018-07-23 13:41:13,554 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2018-07-23 13:41:13,555 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=992, Invalid=1078, Unknown=0, NotChecked=0, Total=2070 [2018-07-23 13:41:13,555 INFO L87 Difference]: Start difference. First operand 130 states and 131 transitions. Second operand 46 states. [2018-07-23 13:41:13,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:13,717 INFO L93 Difference]: Finished difference Result 138 states and 139 transitions. [2018-07-23 13:41:13,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2018-07-23 13:41:13,717 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 129 [2018-07-23 13:41:13,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:13,718 INFO L225 Difference]: With dead ends: 138 [2018-07-23 13:41:13,718 INFO L226 Difference]: Without dead ends: 136 [2018-07-23 13:41:13,719 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1806 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=2970, Invalid=4862, Unknown=0, NotChecked=0, Total=7832 [2018-07-23 13:41:13,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2018-07-23 13:41:13,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 132. [2018-07-23 13:41:13,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2018-07-23 13:41:13,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 133 transitions. [2018-07-23 13:41:13,736 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 133 transitions. Word has length 129 [2018-07-23 13:41:13,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:13,737 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 133 transitions. [2018-07-23 13:41:13,737 INFO L472 AbstractCegarLoop]: Interpolant automaton has 46 states. [2018-07-23 13:41:13,737 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 133 transitions. [2018-07-23 13:41:13,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-07-23 13:41:13,738 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:13,738 INFO L357 BasicCegarLoop]: trace histogram [43, 42, 42, 1, 1, 1, 1] [2018-07-23 13:41:13,738 INFO L414 AbstractCegarLoop]: === Iteration 85 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:13,738 INFO L82 PathProgramCache]: Analyzing trace with hash -159359189, now seen corresponding path program 83 times [2018-07-23 13:41:13,738 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:13,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:13,999 INFO L134 CoverageAnalysis]: Checked inductivity of 2709 backedges. 1806 proven. 903 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:14,000 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:14,000 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [87] total 87 [2018-07-23 13:41:14,001 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:14,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:14,001 INFO L185 omatonBuilderFactory]: Interpolants [34432#(<= ULTIMATE.start_main_~i~5 41), 34433#(<= ULTIMATE.start_main_~i~5 42), 34434#(<= ULTIMATE.start_main_~j~5 42), 34435#(<= ULTIMATE.start_main_~j~5 41), 34436#(<= ULTIMATE.start_main_~j~5 40), 34437#(<= ULTIMATE.start_main_~j~5 39), 34438#(<= ULTIMATE.start_main_~j~5 38), 34439#(<= ULTIMATE.start_main_~j~5 37), 34440#(<= ULTIMATE.start_main_~j~5 36), 34441#(<= ULTIMATE.start_main_~j~5 35), 34442#(<= ULTIMATE.start_main_~j~5 34), 34443#(<= ULTIMATE.start_main_~j~5 33), 34444#(<= ULTIMATE.start_main_~j~5 32), 34445#(<= ULTIMATE.start_main_~j~5 31), 34446#(<= ULTIMATE.start_main_~j~5 30), 34447#(<= ULTIMATE.start_main_~j~5 29), 34448#(<= ULTIMATE.start_main_~j~5 28), 34449#(<= ULTIMATE.start_main_~j~5 27), 34450#(<= ULTIMATE.start_main_~j~5 26), 34451#(<= ULTIMATE.start_main_~j~5 25), 34452#(<= ULTIMATE.start_main_~j~5 24), 34453#(<= ULTIMATE.start_main_~j~5 23), 34454#(<= ULTIMATE.start_main_~j~5 22), 34455#(<= ULTIMATE.start_main_~j~5 21), 34456#(<= ULTIMATE.start_main_~j~5 20), 34457#(<= ULTIMATE.start_main_~j~5 19), 34458#(<= ULTIMATE.start_main_~j~5 18), 34459#(<= ULTIMATE.start_main_~j~5 17), 34460#(<= ULTIMATE.start_main_~j~5 16), 34461#(<= ULTIMATE.start_main_~j~5 15), 34462#(<= ULTIMATE.start_main_~j~5 14), 34463#(<= ULTIMATE.start_main_~j~5 13), 34464#(<= ULTIMATE.start_main_~j~5 12), 34465#(<= ULTIMATE.start_main_~j~5 11), 34466#(<= ULTIMATE.start_main_~j~5 10), 34467#(<= ULTIMATE.start_main_~j~5 9), 34468#(<= ULTIMATE.start_main_~j~5 8), 34469#(<= ULTIMATE.start_main_~j~5 7), 34470#(<= ULTIMATE.start_main_~j~5 6), 34471#(<= ULTIMATE.start_main_~j~5 5), 34472#(<= ULTIMATE.start_main_~j~5 4), 34473#(<= ULTIMATE.start_main_~j~5 3), 34474#(<= ULTIMATE.start_main_~j~5 2), 34475#(<= ULTIMATE.start_main_~j~5 1), 34476#(<= ULTIMATE.start_main_~j~5 0), 34389#true, 34390#false, 34391#(<= ULTIMATE.start_main_~i~5 0), 34392#(<= ULTIMATE.start_main_~i~5 1), 34393#(<= ULTIMATE.start_main_~i~5 2), 34394#(<= ULTIMATE.start_main_~i~5 3), 34395#(<= ULTIMATE.start_main_~i~5 4), 34396#(<= ULTIMATE.start_main_~i~5 5), 34397#(<= ULTIMATE.start_main_~i~5 6), 34398#(<= ULTIMATE.start_main_~i~5 7), 34399#(<= ULTIMATE.start_main_~i~5 8), 34400#(<= ULTIMATE.start_main_~i~5 9), 34401#(<= ULTIMATE.start_main_~i~5 10), 34402#(<= ULTIMATE.start_main_~i~5 11), 34403#(<= ULTIMATE.start_main_~i~5 12), 34404#(<= ULTIMATE.start_main_~i~5 13), 34405#(<= ULTIMATE.start_main_~i~5 14), 34406#(<= ULTIMATE.start_main_~i~5 15), 34407#(<= ULTIMATE.start_main_~i~5 16), 34408#(<= ULTIMATE.start_main_~i~5 17), 34409#(<= ULTIMATE.start_main_~i~5 18), 34410#(<= ULTIMATE.start_main_~i~5 19), 34411#(<= ULTIMATE.start_main_~i~5 20), 34412#(<= ULTIMATE.start_main_~i~5 21), 34413#(<= ULTIMATE.start_main_~i~5 22), 34414#(<= ULTIMATE.start_main_~i~5 23), 34415#(<= ULTIMATE.start_main_~i~5 24), 34416#(<= ULTIMATE.start_main_~i~5 25), 34417#(<= ULTIMATE.start_main_~i~5 26), 34418#(<= ULTIMATE.start_main_~i~5 27), 34419#(<= ULTIMATE.start_main_~i~5 28), 34420#(<= ULTIMATE.start_main_~i~5 29), 34421#(<= ULTIMATE.start_main_~i~5 30), 34422#(<= ULTIMATE.start_main_~i~5 31), 34423#(<= ULTIMATE.start_main_~i~5 32), 34424#(<= ULTIMATE.start_main_~i~5 33), 34425#(<= ULTIMATE.start_main_~i~5 34), 34426#(<= ULTIMATE.start_main_~i~5 35), 34427#(<= ULTIMATE.start_main_~i~5 36), 34428#(<= ULTIMATE.start_main_~i~5 37), 34429#(<= ULTIMATE.start_main_~i~5 38), 34430#(<= ULTIMATE.start_main_~i~5 39), 34431#(<= ULTIMATE.start_main_~i~5 40)] [2018-07-23 13:41:14,002 INFO L134 CoverageAnalysis]: Checked inductivity of 2709 backedges. 1806 proven. 903 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:14,002 INFO L450 AbstractCegarLoop]: Interpolant automaton has 88 states [2018-07-23 13:41:14,002 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2018-07-23 13:41:14,003 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1979, Invalid=5677, Unknown=0, NotChecked=0, Total=7656 [2018-07-23 13:41:14,003 INFO L87 Difference]: Start difference. First operand 132 states and 133 transitions. Second operand 88 states. [2018-07-23 13:41:14,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:14,176 INFO L93 Difference]: Finished difference Result 222 states and 224 transitions. [2018-07-23 13:41:14,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2018-07-23 13:41:14,177 INFO L78 Accepts]: Start accepts. Automaton has 88 states. Word has length 131 [2018-07-23 13:41:14,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:14,177 INFO L225 Difference]: With dead ends: 222 [2018-07-23 13:41:14,178 INFO L226 Difference]: Without dead ends: 133 [2018-07-23 13:41:14,179 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2667 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3957, Invalid=13073, Unknown=0, NotChecked=0, Total=17030 [2018-07-23 13:41:14,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2018-07-23 13:41:14,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2018-07-23 13:41:14,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2018-07-23 13:41:14,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 134 transitions. [2018-07-23 13:41:14,194 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 134 transitions. Word has length 131 [2018-07-23 13:41:14,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:14,194 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 134 transitions. [2018-07-23 13:41:14,194 INFO L472 AbstractCegarLoop]: Interpolant automaton has 88 states. [2018-07-23 13:41:14,194 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 134 transitions. [2018-07-23 13:41:14,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-07-23 13:41:14,195 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:14,195 INFO L357 BasicCegarLoop]: trace histogram [43, 43, 42, 1, 1, 1, 1] [2018-07-23 13:41:14,195 INFO L414 AbstractCegarLoop]: === Iteration 86 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:14,195 INFO L82 PathProgramCache]: Analyzing trace with hash -1484217070, now seen corresponding path program 84 times [2018-07-23 13:41:14,196 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:14,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:14,372 INFO L134 CoverageAnalysis]: Checked inductivity of 2752 backedges. 946 proven. 1806 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:14,373 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:14,373 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [46] total 46 [2018-07-23 13:41:14,373 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:14,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:14,374 INFO L185 omatonBuilderFactory]: Interpolants [35273#true, 35274#false, 35275#(<= 0 ULTIMATE.start_main_~k~5), 35276#(<= 1 ULTIMATE.start_main_~k~5), 35277#(<= 2 ULTIMATE.start_main_~k~5), 35278#(<= 3 ULTIMATE.start_main_~k~5), 35279#(<= 4 ULTIMATE.start_main_~k~5), 35280#(<= 5 ULTIMATE.start_main_~k~5), 35281#(<= 6 ULTIMATE.start_main_~k~5), 35282#(<= 7 ULTIMATE.start_main_~k~5), 35283#(<= 8 ULTIMATE.start_main_~k~5), 35284#(<= 9 ULTIMATE.start_main_~k~5), 35285#(<= 10 ULTIMATE.start_main_~k~5), 35286#(<= 11 ULTIMATE.start_main_~k~5), 35287#(<= 12 ULTIMATE.start_main_~k~5), 35288#(<= 13 ULTIMATE.start_main_~k~5), 35289#(<= 14 ULTIMATE.start_main_~k~5), 35290#(<= 15 ULTIMATE.start_main_~k~5), 35291#(<= 16 ULTIMATE.start_main_~k~5), 35292#(<= 17 ULTIMATE.start_main_~k~5), 35293#(<= 18 ULTIMATE.start_main_~k~5), 35294#(<= 19 ULTIMATE.start_main_~k~5), 35295#(<= 20 ULTIMATE.start_main_~k~5), 35296#(<= 21 ULTIMATE.start_main_~k~5), 35297#(<= 22 ULTIMATE.start_main_~k~5), 35298#(<= 23 ULTIMATE.start_main_~k~5), 35299#(<= 24 ULTIMATE.start_main_~k~5), 35300#(<= 25 ULTIMATE.start_main_~k~5), 35301#(<= 26 ULTIMATE.start_main_~k~5), 35302#(<= 27 ULTIMATE.start_main_~k~5), 35303#(<= 28 ULTIMATE.start_main_~k~5), 35304#(<= 29 ULTIMATE.start_main_~k~5), 35305#(<= 30 ULTIMATE.start_main_~k~5), 35306#(<= 31 ULTIMATE.start_main_~k~5), 35307#(<= 32 ULTIMATE.start_main_~k~5), 35308#(<= 33 ULTIMATE.start_main_~k~5), 35309#(<= 34 ULTIMATE.start_main_~k~5), 35310#(<= 35 ULTIMATE.start_main_~k~5), 35311#(<= 36 ULTIMATE.start_main_~k~5), 35312#(<= 37 ULTIMATE.start_main_~k~5), 35313#(<= 38 ULTIMATE.start_main_~k~5), 35314#(<= 39 ULTIMATE.start_main_~k~5), 35315#(<= 40 ULTIMATE.start_main_~k~5), 35316#(<= 41 ULTIMATE.start_main_~k~5), 35317#(<= 42 ULTIMATE.start_main_~k~5), 35318#(<= 43 ULTIMATE.start_main_~k~5), 35319#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond)] [2018-07-23 13:41:14,374 INFO L134 CoverageAnalysis]: Checked inductivity of 2752 backedges. 946 proven. 1806 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:14,375 INFO L450 AbstractCegarLoop]: Interpolant automaton has 47 states [2018-07-23 13:41:14,375 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2018-07-23 13:41:14,375 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1037, Invalid=1125, Unknown=0, NotChecked=0, Total=2162 [2018-07-23 13:41:14,375 INFO L87 Difference]: Start difference. First operand 133 states and 134 transitions. Second operand 47 states. [2018-07-23 13:41:14,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:14,546 INFO L93 Difference]: Finished difference Result 141 states and 142 transitions. [2018-07-23 13:41:14,546 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2018-07-23 13:41:14,547 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 132 [2018-07-23 13:41:14,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:14,548 INFO L225 Difference]: With dead ends: 141 [2018-07-23 13:41:14,548 INFO L226 Difference]: Without dead ends: 139 [2018-07-23 13:41:14,549 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1892 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3105, Invalid=5085, Unknown=0, NotChecked=0, Total=8190 [2018-07-23 13:41:14,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2018-07-23 13:41:14,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 135. [2018-07-23 13:41:14,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2018-07-23 13:41:14,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 136 transitions. [2018-07-23 13:41:14,566 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 136 transitions. Word has length 132 [2018-07-23 13:41:14,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:14,566 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 136 transitions. [2018-07-23 13:41:14,566 INFO L472 AbstractCegarLoop]: Interpolant automaton has 47 states. [2018-07-23 13:41:14,566 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 136 transitions. [2018-07-23 13:41:14,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-07-23 13:41:14,567 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:14,567 INFO L357 BasicCegarLoop]: trace histogram [44, 43, 43, 1, 1, 1, 1] [2018-07-23 13:41:14,567 INFO L414 AbstractCegarLoop]: === Iteration 87 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:14,568 INFO L82 PathProgramCache]: Analyzing trace with hash -403395974, now seen corresponding path program 85 times [2018-07-23 13:41:14,568 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:14,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:14,786 INFO L134 CoverageAnalysis]: Checked inductivity of 2838 backedges. 1892 proven. 946 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:14,787 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:14,787 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [89] total 89 [2018-07-23 13:41:14,787 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:14,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:14,788 INFO L185 omatonBuilderFactory]: Interpolants [35968#(<= ULTIMATE.start_main_~i~5 6), 35969#(<= ULTIMATE.start_main_~i~5 7), 35970#(<= ULTIMATE.start_main_~i~5 8), 35971#(<= ULTIMATE.start_main_~i~5 9), 35972#(<= ULTIMATE.start_main_~i~5 10), 35973#(<= ULTIMATE.start_main_~i~5 11), 35974#(<= ULTIMATE.start_main_~i~5 12), 35975#(<= ULTIMATE.start_main_~i~5 13), 35976#(<= ULTIMATE.start_main_~i~5 14), 35977#(<= ULTIMATE.start_main_~i~5 15), 35978#(<= ULTIMATE.start_main_~i~5 16), 35979#(<= ULTIMATE.start_main_~i~5 17), 35980#(<= ULTIMATE.start_main_~i~5 18), 35981#(<= ULTIMATE.start_main_~i~5 19), 35982#(<= ULTIMATE.start_main_~i~5 20), 35983#(<= ULTIMATE.start_main_~i~5 21), 35984#(<= ULTIMATE.start_main_~i~5 22), 35985#(<= ULTIMATE.start_main_~i~5 23), 35986#(<= ULTIMATE.start_main_~i~5 24), 35987#(<= ULTIMATE.start_main_~i~5 25), 35988#(<= ULTIMATE.start_main_~i~5 26), 35989#(<= ULTIMATE.start_main_~i~5 27), 35990#(<= ULTIMATE.start_main_~i~5 28), 35991#(<= ULTIMATE.start_main_~i~5 29), 35992#(<= ULTIMATE.start_main_~i~5 30), 35993#(<= ULTIMATE.start_main_~i~5 31), 35994#(<= ULTIMATE.start_main_~i~5 32), 35995#(<= ULTIMATE.start_main_~i~5 33), 35996#(<= ULTIMATE.start_main_~i~5 34), 35997#(<= ULTIMATE.start_main_~i~5 35), 35998#(<= ULTIMATE.start_main_~i~5 36), 35999#(<= ULTIMATE.start_main_~i~5 37), 36000#(<= ULTIMATE.start_main_~i~5 38), 36001#(<= ULTIMATE.start_main_~i~5 39), 36002#(<= ULTIMATE.start_main_~i~5 40), 36003#(<= ULTIMATE.start_main_~i~5 41), 36004#(<= ULTIMATE.start_main_~i~5 42), 36005#(<= ULTIMATE.start_main_~i~5 43), 36006#(<= ULTIMATE.start_main_~j~5 43), 36007#(<= ULTIMATE.start_main_~j~5 42), 36008#(<= ULTIMATE.start_main_~j~5 41), 36009#(<= ULTIMATE.start_main_~j~5 40), 36010#(<= ULTIMATE.start_main_~j~5 39), 36011#(<= ULTIMATE.start_main_~j~5 38), 36012#(<= ULTIMATE.start_main_~j~5 37), 36013#(<= ULTIMATE.start_main_~j~5 36), 36014#(<= ULTIMATE.start_main_~j~5 35), 36015#(<= ULTIMATE.start_main_~j~5 34), 36016#(<= ULTIMATE.start_main_~j~5 33), 36017#(<= ULTIMATE.start_main_~j~5 32), 36018#(<= ULTIMATE.start_main_~j~5 31), 36019#(<= ULTIMATE.start_main_~j~5 30), 36020#(<= ULTIMATE.start_main_~j~5 29), 36021#(<= ULTIMATE.start_main_~j~5 28), 36022#(<= ULTIMATE.start_main_~j~5 27), 36023#(<= ULTIMATE.start_main_~j~5 26), 36024#(<= ULTIMATE.start_main_~j~5 25), 36025#(<= ULTIMATE.start_main_~j~5 24), 36026#(<= ULTIMATE.start_main_~j~5 23), 36027#(<= ULTIMATE.start_main_~j~5 22), 36028#(<= ULTIMATE.start_main_~j~5 21), 36029#(<= ULTIMATE.start_main_~j~5 20), 36030#(<= ULTIMATE.start_main_~j~5 19), 36031#(<= ULTIMATE.start_main_~j~5 18), 36032#(<= ULTIMATE.start_main_~j~5 17), 36033#(<= ULTIMATE.start_main_~j~5 16), 36034#(<= ULTIMATE.start_main_~j~5 15), 36035#(<= ULTIMATE.start_main_~j~5 14), 36036#(<= ULTIMATE.start_main_~j~5 13), 36037#(<= ULTIMATE.start_main_~j~5 12), 36038#(<= ULTIMATE.start_main_~j~5 11), 36039#(<= ULTIMATE.start_main_~j~5 10), 36040#(<= ULTIMATE.start_main_~j~5 9), 36041#(<= ULTIMATE.start_main_~j~5 8), 36042#(<= ULTIMATE.start_main_~j~5 7), 36043#(<= ULTIMATE.start_main_~j~5 6), 36044#(<= ULTIMATE.start_main_~j~5 5), 36045#(<= ULTIMATE.start_main_~j~5 4), 36046#(<= ULTIMATE.start_main_~j~5 3), 36047#(<= ULTIMATE.start_main_~j~5 2), 36048#(<= ULTIMATE.start_main_~j~5 1), 36049#(<= ULTIMATE.start_main_~j~5 0), 35960#true, 35961#false, 35962#(<= ULTIMATE.start_main_~i~5 0), 35963#(<= ULTIMATE.start_main_~i~5 1), 35964#(<= ULTIMATE.start_main_~i~5 2), 35965#(<= ULTIMATE.start_main_~i~5 3), 35966#(<= ULTIMATE.start_main_~i~5 4), 35967#(<= ULTIMATE.start_main_~i~5 5)] [2018-07-23 13:41:14,788 INFO L134 CoverageAnalysis]: Checked inductivity of 2838 backedges. 1892 proven. 946 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:14,788 INFO L450 AbstractCegarLoop]: Interpolant automaton has 90 states [2018-07-23 13:41:14,788 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2018-07-23 13:41:14,789 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2069, Invalid=5941, Unknown=0, NotChecked=0, Total=8010 [2018-07-23 13:41:14,789 INFO L87 Difference]: Start difference. First operand 135 states and 136 transitions. Second operand 90 states. [2018-07-23 13:41:15,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:15,183 INFO L93 Difference]: Finished difference Result 227 states and 229 transitions. [2018-07-23 13:41:15,183 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2018-07-23 13:41:15,183 INFO L78 Accepts]: Start accepts. Automaton has 90 states. Word has length 134 [2018-07-23 13:41:15,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:15,185 INFO L225 Difference]: With dead ends: 227 [2018-07-23 13:41:15,185 INFO L226 Difference]: Without dead ends: 136 [2018-07-23 13:41:15,186 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2795 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=4137, Invalid=13685, Unknown=0, NotChecked=0, Total=17822 [2018-07-23 13:41:15,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2018-07-23 13:41:15,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2018-07-23 13:41:15,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2018-07-23 13:41:15,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 137 transitions. [2018-07-23 13:41:15,203 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 137 transitions. Word has length 134 [2018-07-23 13:41:15,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:15,203 INFO L471 AbstractCegarLoop]: Abstraction has 136 states and 137 transitions. [2018-07-23 13:41:15,203 INFO L472 AbstractCegarLoop]: Interpolant automaton has 90 states. [2018-07-23 13:41:15,204 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 137 transitions. [2018-07-23 13:41:15,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2018-07-23 13:41:15,204 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:15,205 INFO L357 BasicCegarLoop]: trace histogram [44, 44, 43, 1, 1, 1, 1] [2018-07-23 13:41:15,205 INFO L414 AbstractCegarLoop]: === Iteration 88 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:15,205 INFO L82 PathProgramCache]: Analyzing trace with hash 1504921395, now seen corresponding path program 86 times [2018-07-23 13:41:15,205 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:15,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:15,340 INFO L134 CoverageAnalysis]: Checked inductivity of 2882 backedges. 990 proven. 1892 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:15,340 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:15,340 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [47] total 47 [2018-07-23 13:41:15,340 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:15,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:15,341 INFO L185 omatonBuilderFactory]: Interpolants [36864#true, 36865#false, 36866#(<= 0 ULTIMATE.start_main_~k~5), 36867#(<= 1 ULTIMATE.start_main_~k~5), 36868#(<= 2 ULTIMATE.start_main_~k~5), 36869#(<= 3 ULTIMATE.start_main_~k~5), 36870#(<= 4 ULTIMATE.start_main_~k~5), 36871#(<= 5 ULTIMATE.start_main_~k~5), 36872#(<= 6 ULTIMATE.start_main_~k~5), 36873#(<= 7 ULTIMATE.start_main_~k~5), 36874#(<= 8 ULTIMATE.start_main_~k~5), 36875#(<= 9 ULTIMATE.start_main_~k~5), 36876#(<= 10 ULTIMATE.start_main_~k~5), 36877#(<= 11 ULTIMATE.start_main_~k~5), 36878#(<= 12 ULTIMATE.start_main_~k~5), 36879#(<= 13 ULTIMATE.start_main_~k~5), 36880#(<= 14 ULTIMATE.start_main_~k~5), 36881#(<= 15 ULTIMATE.start_main_~k~5), 36882#(<= 16 ULTIMATE.start_main_~k~5), 36883#(<= 17 ULTIMATE.start_main_~k~5), 36884#(<= 18 ULTIMATE.start_main_~k~5), 36885#(<= 19 ULTIMATE.start_main_~k~5), 36886#(<= 20 ULTIMATE.start_main_~k~5), 36887#(<= 21 ULTIMATE.start_main_~k~5), 36888#(<= 22 ULTIMATE.start_main_~k~5), 36889#(<= 23 ULTIMATE.start_main_~k~5), 36890#(<= 24 ULTIMATE.start_main_~k~5), 36891#(<= 25 ULTIMATE.start_main_~k~5), 36892#(<= 26 ULTIMATE.start_main_~k~5), 36893#(<= 27 ULTIMATE.start_main_~k~5), 36894#(<= 28 ULTIMATE.start_main_~k~5), 36895#(<= 29 ULTIMATE.start_main_~k~5), 36896#(<= 30 ULTIMATE.start_main_~k~5), 36897#(<= 31 ULTIMATE.start_main_~k~5), 36898#(<= 32 ULTIMATE.start_main_~k~5), 36899#(<= 33 ULTIMATE.start_main_~k~5), 36900#(<= 34 ULTIMATE.start_main_~k~5), 36901#(<= 35 ULTIMATE.start_main_~k~5), 36902#(<= 36 ULTIMATE.start_main_~k~5), 36903#(<= 37 ULTIMATE.start_main_~k~5), 36904#(<= 38 ULTIMATE.start_main_~k~5), 36905#(<= 39 ULTIMATE.start_main_~k~5), 36906#(<= 40 ULTIMATE.start_main_~k~5), 36907#(<= 41 ULTIMATE.start_main_~k~5), 36908#(<= 42 ULTIMATE.start_main_~k~5), 36909#(<= 43 ULTIMATE.start_main_~k~5), 36910#(<= 44 ULTIMATE.start_main_~k~5), 36911#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond)] [2018-07-23 13:41:15,341 INFO L134 CoverageAnalysis]: Checked inductivity of 2882 backedges. 990 proven. 1892 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:15,341 INFO L450 AbstractCegarLoop]: Interpolant automaton has 48 states [2018-07-23 13:41:15,342 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2018-07-23 13:41:15,342 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1083, Invalid=1173, Unknown=0, NotChecked=0, Total=2256 [2018-07-23 13:41:15,342 INFO L87 Difference]: Start difference. First operand 136 states and 137 transitions. Second operand 48 states. [2018-07-23 13:41:15,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:15,483 INFO L93 Difference]: Finished difference Result 144 states and 145 transitions. [2018-07-23 13:41:15,483 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2018-07-23 13:41:15,483 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 135 [2018-07-23 13:41:15,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:15,484 INFO L225 Difference]: With dead ends: 144 [2018-07-23 13:41:15,484 INFO L226 Difference]: Without dead ends: 142 [2018-07-23 13:41:15,485 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1980 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3243, Invalid=5313, Unknown=0, NotChecked=0, Total=8556 [2018-07-23 13:41:15,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2018-07-23 13:41:15,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 138. [2018-07-23 13:41:15,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2018-07-23 13:41:15,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 139 transitions. [2018-07-23 13:41:15,500 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 139 transitions. Word has length 135 [2018-07-23 13:41:15,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:15,500 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 139 transitions. [2018-07-23 13:41:15,500 INFO L472 AbstractCegarLoop]: Interpolant automaton has 48 states. [2018-07-23 13:41:15,501 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 139 transitions. [2018-07-23 13:41:15,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-07-23 13:41:15,501 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:15,502 INFO L357 BasicCegarLoop]: trace histogram [45, 44, 44, 1, 1, 1, 1] [2018-07-23 13:41:15,502 INFO L414 AbstractCegarLoop]: === Iteration 89 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:15,502 INFO L82 PathProgramCache]: Analyzing trace with hash -1174452133, now seen corresponding path program 87 times [2018-07-23 13:41:15,502 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:15,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:15,724 INFO L134 CoverageAnalysis]: Checked inductivity of 2970 backedges. 1980 proven. 990 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:15,725 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:15,725 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [91] total 91 [2018-07-23 13:41:15,725 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:15,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:15,726 INFO L185 omatonBuilderFactory]: Interpolants [37632#(<= ULTIMATE.start_main_~j~5 25), 37633#(<= ULTIMATE.start_main_~j~5 24), 37634#(<= ULTIMATE.start_main_~j~5 23), 37635#(<= ULTIMATE.start_main_~j~5 22), 37636#(<= ULTIMATE.start_main_~j~5 21), 37637#(<= ULTIMATE.start_main_~j~5 20), 37638#(<= ULTIMATE.start_main_~j~5 19), 37639#(<= ULTIMATE.start_main_~j~5 18), 37640#(<= ULTIMATE.start_main_~j~5 17), 37641#(<= ULTIMATE.start_main_~j~5 16), 37642#(<= ULTIMATE.start_main_~j~5 15), 37643#(<= ULTIMATE.start_main_~j~5 14), 37644#(<= ULTIMATE.start_main_~j~5 13), 37645#(<= ULTIMATE.start_main_~j~5 12), 37646#(<= ULTIMATE.start_main_~j~5 11), 37647#(<= ULTIMATE.start_main_~j~5 10), 37648#(<= ULTIMATE.start_main_~j~5 9), 37649#(<= ULTIMATE.start_main_~j~5 8), 37650#(<= ULTIMATE.start_main_~j~5 7), 37651#(<= ULTIMATE.start_main_~j~5 6), 37652#(<= ULTIMATE.start_main_~j~5 5), 37653#(<= ULTIMATE.start_main_~j~5 4), 37654#(<= ULTIMATE.start_main_~j~5 3), 37655#(<= ULTIMATE.start_main_~j~5 2), 37656#(<= ULTIMATE.start_main_~j~5 1), 37657#(<= ULTIMATE.start_main_~j~5 0), 37566#true, 37567#false, 37568#(<= ULTIMATE.start_main_~i~5 0), 37569#(<= ULTIMATE.start_main_~i~5 1), 37570#(<= ULTIMATE.start_main_~i~5 2), 37571#(<= ULTIMATE.start_main_~i~5 3), 37572#(<= ULTIMATE.start_main_~i~5 4), 37573#(<= ULTIMATE.start_main_~i~5 5), 37574#(<= ULTIMATE.start_main_~i~5 6), 37575#(<= ULTIMATE.start_main_~i~5 7), 37576#(<= ULTIMATE.start_main_~i~5 8), 37577#(<= ULTIMATE.start_main_~i~5 9), 37578#(<= ULTIMATE.start_main_~i~5 10), 37579#(<= ULTIMATE.start_main_~i~5 11), 37580#(<= ULTIMATE.start_main_~i~5 12), 37581#(<= ULTIMATE.start_main_~i~5 13), 37582#(<= ULTIMATE.start_main_~i~5 14), 37583#(<= ULTIMATE.start_main_~i~5 15), 37584#(<= ULTIMATE.start_main_~i~5 16), 37585#(<= ULTIMATE.start_main_~i~5 17), 37586#(<= ULTIMATE.start_main_~i~5 18), 37587#(<= ULTIMATE.start_main_~i~5 19), 37588#(<= ULTIMATE.start_main_~i~5 20), 37589#(<= ULTIMATE.start_main_~i~5 21), 37590#(<= ULTIMATE.start_main_~i~5 22), 37591#(<= ULTIMATE.start_main_~i~5 23), 37592#(<= ULTIMATE.start_main_~i~5 24), 37593#(<= ULTIMATE.start_main_~i~5 25), 37594#(<= ULTIMATE.start_main_~i~5 26), 37595#(<= ULTIMATE.start_main_~i~5 27), 37596#(<= ULTIMATE.start_main_~i~5 28), 37597#(<= ULTIMATE.start_main_~i~5 29), 37598#(<= ULTIMATE.start_main_~i~5 30), 37599#(<= ULTIMATE.start_main_~i~5 31), 37600#(<= ULTIMATE.start_main_~i~5 32), 37601#(<= ULTIMATE.start_main_~i~5 33), 37602#(<= ULTIMATE.start_main_~i~5 34), 37603#(<= ULTIMATE.start_main_~i~5 35), 37604#(<= ULTIMATE.start_main_~i~5 36), 37605#(<= ULTIMATE.start_main_~i~5 37), 37606#(<= ULTIMATE.start_main_~i~5 38), 37607#(<= ULTIMATE.start_main_~i~5 39), 37608#(<= ULTIMATE.start_main_~i~5 40), 37609#(<= ULTIMATE.start_main_~i~5 41), 37610#(<= ULTIMATE.start_main_~i~5 42), 37611#(<= ULTIMATE.start_main_~i~5 43), 37612#(<= ULTIMATE.start_main_~i~5 44), 37613#(<= ULTIMATE.start_main_~j~5 44), 37614#(<= ULTIMATE.start_main_~j~5 43), 37615#(<= ULTIMATE.start_main_~j~5 42), 37616#(<= ULTIMATE.start_main_~j~5 41), 37617#(<= ULTIMATE.start_main_~j~5 40), 37618#(<= ULTIMATE.start_main_~j~5 39), 37619#(<= ULTIMATE.start_main_~j~5 38), 37620#(<= ULTIMATE.start_main_~j~5 37), 37621#(<= ULTIMATE.start_main_~j~5 36), 37622#(<= ULTIMATE.start_main_~j~5 35), 37623#(<= ULTIMATE.start_main_~j~5 34), 37624#(<= ULTIMATE.start_main_~j~5 33), 37625#(<= ULTIMATE.start_main_~j~5 32), 37626#(<= ULTIMATE.start_main_~j~5 31), 37627#(<= ULTIMATE.start_main_~j~5 30), 37628#(<= ULTIMATE.start_main_~j~5 29), 37629#(<= ULTIMATE.start_main_~j~5 28), 37630#(<= ULTIMATE.start_main_~j~5 27), 37631#(<= ULTIMATE.start_main_~j~5 26)] [2018-07-23 13:41:15,726 INFO L134 CoverageAnalysis]: Checked inductivity of 2970 backedges. 1980 proven. 990 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:15,726 INFO L450 AbstractCegarLoop]: Interpolant automaton has 92 states [2018-07-23 13:41:15,726 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2018-07-23 13:41:15,727 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2161, Invalid=6211, Unknown=0, NotChecked=0, Total=8372 [2018-07-23 13:41:15,727 INFO L87 Difference]: Start difference. First operand 138 states and 139 transitions. Second operand 92 states. [2018-07-23 13:41:16,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:16,193 INFO L93 Difference]: Finished difference Result 232 states and 234 transitions. [2018-07-23 13:41:16,194 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2018-07-23 13:41:16,194 INFO L78 Accepts]: Start accepts. Automaton has 92 states. Word has length 137 [2018-07-23 13:41:16,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:16,195 INFO L225 Difference]: With dead ends: 232 [2018-07-23 13:41:16,195 INFO L226 Difference]: Without dead ends: 139 [2018-07-23 13:41:16,197 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2926 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=4321, Invalid=14311, Unknown=0, NotChecked=0, Total=18632 [2018-07-23 13:41:16,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2018-07-23 13:41:16,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2018-07-23 13:41:16,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2018-07-23 13:41:16,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 140 transitions. [2018-07-23 13:41:16,215 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 140 transitions. Word has length 137 [2018-07-23 13:41:16,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:16,215 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 140 transitions. [2018-07-23 13:41:16,215 INFO L472 AbstractCegarLoop]: Interpolant automaton has 92 states. [2018-07-23 13:41:16,215 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 140 transitions. [2018-07-23 13:41:16,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-07-23 13:41:16,216 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:16,216 INFO L357 BasicCegarLoop]: trace histogram [45, 45, 44, 1, 1, 1, 1] [2018-07-23 13:41:16,217 INFO L414 AbstractCegarLoop]: === Iteration 90 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:16,217 INFO L82 PathProgramCache]: Analyzing trace with hash 1321157890, now seen corresponding path program 88 times [2018-07-23 13:41:16,217 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:16,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:16,399 INFO L134 CoverageAnalysis]: Checked inductivity of 3015 backedges. 1035 proven. 1980 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:16,399 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:16,399 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [48] total 48 [2018-07-23 13:41:16,399 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:16,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:16,400 INFO L185 omatonBuilderFactory]: Interpolants [38528#(<= 36 ULTIMATE.start_main_~k~5), 38529#(<= 37 ULTIMATE.start_main_~k~5), 38530#(<= 38 ULTIMATE.start_main_~k~5), 38531#(<= 39 ULTIMATE.start_main_~k~5), 38532#(<= 40 ULTIMATE.start_main_~k~5), 38533#(<= 41 ULTIMATE.start_main_~k~5), 38534#(<= 42 ULTIMATE.start_main_~k~5), 38535#(<= 43 ULTIMATE.start_main_~k~5), 38536#(<= 44 ULTIMATE.start_main_~k~5), 38537#(<= 45 ULTIMATE.start_main_~k~5), 38538#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 38490#true, 38491#false, 38492#(<= 0 ULTIMATE.start_main_~k~5), 38493#(<= 1 ULTIMATE.start_main_~k~5), 38494#(<= 2 ULTIMATE.start_main_~k~5), 38495#(<= 3 ULTIMATE.start_main_~k~5), 38496#(<= 4 ULTIMATE.start_main_~k~5), 38497#(<= 5 ULTIMATE.start_main_~k~5), 38498#(<= 6 ULTIMATE.start_main_~k~5), 38499#(<= 7 ULTIMATE.start_main_~k~5), 38500#(<= 8 ULTIMATE.start_main_~k~5), 38501#(<= 9 ULTIMATE.start_main_~k~5), 38502#(<= 10 ULTIMATE.start_main_~k~5), 38503#(<= 11 ULTIMATE.start_main_~k~5), 38504#(<= 12 ULTIMATE.start_main_~k~5), 38505#(<= 13 ULTIMATE.start_main_~k~5), 38506#(<= 14 ULTIMATE.start_main_~k~5), 38507#(<= 15 ULTIMATE.start_main_~k~5), 38508#(<= 16 ULTIMATE.start_main_~k~5), 38509#(<= 17 ULTIMATE.start_main_~k~5), 38510#(<= 18 ULTIMATE.start_main_~k~5), 38511#(<= 19 ULTIMATE.start_main_~k~5), 38512#(<= 20 ULTIMATE.start_main_~k~5), 38513#(<= 21 ULTIMATE.start_main_~k~5), 38514#(<= 22 ULTIMATE.start_main_~k~5), 38515#(<= 23 ULTIMATE.start_main_~k~5), 38516#(<= 24 ULTIMATE.start_main_~k~5), 38517#(<= 25 ULTIMATE.start_main_~k~5), 38518#(<= 26 ULTIMATE.start_main_~k~5), 38519#(<= 27 ULTIMATE.start_main_~k~5), 38520#(<= 28 ULTIMATE.start_main_~k~5), 38521#(<= 29 ULTIMATE.start_main_~k~5), 38522#(<= 30 ULTIMATE.start_main_~k~5), 38523#(<= 31 ULTIMATE.start_main_~k~5), 38524#(<= 32 ULTIMATE.start_main_~k~5), 38525#(<= 33 ULTIMATE.start_main_~k~5), 38526#(<= 34 ULTIMATE.start_main_~k~5), 38527#(<= 35 ULTIMATE.start_main_~k~5)] [2018-07-23 13:41:16,400 INFO L134 CoverageAnalysis]: Checked inductivity of 3015 backedges. 1035 proven. 1980 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:16,401 INFO L450 AbstractCegarLoop]: Interpolant automaton has 49 states [2018-07-23 13:41:16,401 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2018-07-23 13:41:16,401 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1130, Invalid=1222, Unknown=0, NotChecked=0, Total=2352 [2018-07-23 13:41:16,401 INFO L87 Difference]: Start difference. First operand 139 states and 140 transitions. Second operand 49 states. [2018-07-23 13:41:16,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:16,581 INFO L93 Difference]: Finished difference Result 147 states and 148 transitions. [2018-07-23 13:41:16,581 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2018-07-23 13:41:16,581 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 138 [2018-07-23 13:41:16,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:16,582 INFO L225 Difference]: With dead ends: 147 [2018-07-23 13:41:16,582 INFO L226 Difference]: Without dead ends: 145 [2018-07-23 13:41:16,583 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2070 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3384, Invalid=5546, Unknown=0, NotChecked=0, Total=8930 [2018-07-23 13:41:16,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2018-07-23 13:41:16,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 141. [2018-07-23 13:41:16,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2018-07-23 13:41:16,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 142 transitions. [2018-07-23 13:41:16,603 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 142 transitions. Word has length 138 [2018-07-23 13:41:16,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:16,604 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 142 transitions. [2018-07-23 13:41:16,604 INFO L472 AbstractCegarLoop]: Interpolant automaton has 49 states. [2018-07-23 13:41:16,604 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 142 transitions. [2018-07-23 13:41:16,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-07-23 13:41:16,605 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:16,605 INFO L357 BasicCegarLoop]: trace histogram [46, 45, 45, 1, 1, 1, 1] [2018-07-23 13:41:16,605 INFO L414 AbstractCegarLoop]: === Iteration 91 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:16,605 INFO L82 PathProgramCache]: Analyzing trace with hash -1677521302, now seen corresponding path program 89 times [2018-07-23 13:41:16,605 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:16,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:16,835 INFO L134 CoverageAnalysis]: Checked inductivity of 3105 backedges. 2070 proven. 1035 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:16,835 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:16,836 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [93] total 93 [2018-07-23 13:41:16,836 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:16,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:16,836 INFO L185 omatonBuilderFactory]: Interpolants [39296#(<= ULTIMATE.start_main_~j~5 4), 39297#(<= ULTIMATE.start_main_~j~5 3), 39298#(<= ULTIMATE.start_main_~j~5 2), 39299#(<= ULTIMATE.start_main_~j~5 1), 39300#(<= ULTIMATE.start_main_~j~5 0), 39207#true, 39208#false, 39209#(<= ULTIMATE.start_main_~i~5 0), 39210#(<= ULTIMATE.start_main_~i~5 1), 39211#(<= ULTIMATE.start_main_~i~5 2), 39212#(<= ULTIMATE.start_main_~i~5 3), 39213#(<= ULTIMATE.start_main_~i~5 4), 39214#(<= ULTIMATE.start_main_~i~5 5), 39215#(<= ULTIMATE.start_main_~i~5 6), 39216#(<= ULTIMATE.start_main_~i~5 7), 39217#(<= ULTIMATE.start_main_~i~5 8), 39218#(<= ULTIMATE.start_main_~i~5 9), 39219#(<= ULTIMATE.start_main_~i~5 10), 39220#(<= ULTIMATE.start_main_~i~5 11), 39221#(<= ULTIMATE.start_main_~i~5 12), 39222#(<= ULTIMATE.start_main_~i~5 13), 39223#(<= ULTIMATE.start_main_~i~5 14), 39224#(<= ULTIMATE.start_main_~i~5 15), 39225#(<= ULTIMATE.start_main_~i~5 16), 39226#(<= ULTIMATE.start_main_~i~5 17), 39227#(<= ULTIMATE.start_main_~i~5 18), 39228#(<= ULTIMATE.start_main_~i~5 19), 39229#(<= ULTIMATE.start_main_~i~5 20), 39230#(<= ULTIMATE.start_main_~i~5 21), 39231#(<= ULTIMATE.start_main_~i~5 22), 39232#(<= ULTIMATE.start_main_~i~5 23), 39233#(<= ULTIMATE.start_main_~i~5 24), 39234#(<= ULTIMATE.start_main_~i~5 25), 39235#(<= ULTIMATE.start_main_~i~5 26), 39236#(<= ULTIMATE.start_main_~i~5 27), 39237#(<= ULTIMATE.start_main_~i~5 28), 39238#(<= ULTIMATE.start_main_~i~5 29), 39239#(<= ULTIMATE.start_main_~i~5 30), 39240#(<= ULTIMATE.start_main_~i~5 31), 39241#(<= ULTIMATE.start_main_~i~5 32), 39242#(<= ULTIMATE.start_main_~i~5 33), 39243#(<= ULTIMATE.start_main_~i~5 34), 39244#(<= ULTIMATE.start_main_~i~5 35), 39245#(<= ULTIMATE.start_main_~i~5 36), 39246#(<= ULTIMATE.start_main_~i~5 37), 39247#(<= ULTIMATE.start_main_~i~5 38), 39248#(<= ULTIMATE.start_main_~i~5 39), 39249#(<= ULTIMATE.start_main_~i~5 40), 39250#(<= ULTIMATE.start_main_~i~5 41), 39251#(<= ULTIMATE.start_main_~i~5 42), 39252#(<= ULTIMATE.start_main_~i~5 43), 39253#(<= ULTIMATE.start_main_~i~5 44), 39254#(<= ULTIMATE.start_main_~i~5 45), 39255#(<= ULTIMATE.start_main_~j~5 45), 39256#(<= ULTIMATE.start_main_~j~5 44), 39257#(<= ULTIMATE.start_main_~j~5 43), 39258#(<= ULTIMATE.start_main_~j~5 42), 39259#(<= ULTIMATE.start_main_~j~5 41), 39260#(<= ULTIMATE.start_main_~j~5 40), 39261#(<= ULTIMATE.start_main_~j~5 39), 39262#(<= ULTIMATE.start_main_~j~5 38), 39263#(<= ULTIMATE.start_main_~j~5 37), 39264#(<= ULTIMATE.start_main_~j~5 36), 39265#(<= ULTIMATE.start_main_~j~5 35), 39266#(<= ULTIMATE.start_main_~j~5 34), 39267#(<= ULTIMATE.start_main_~j~5 33), 39268#(<= ULTIMATE.start_main_~j~5 32), 39269#(<= ULTIMATE.start_main_~j~5 31), 39270#(<= ULTIMATE.start_main_~j~5 30), 39271#(<= ULTIMATE.start_main_~j~5 29), 39272#(<= ULTIMATE.start_main_~j~5 28), 39273#(<= ULTIMATE.start_main_~j~5 27), 39274#(<= ULTIMATE.start_main_~j~5 26), 39275#(<= ULTIMATE.start_main_~j~5 25), 39276#(<= ULTIMATE.start_main_~j~5 24), 39277#(<= ULTIMATE.start_main_~j~5 23), 39278#(<= ULTIMATE.start_main_~j~5 22), 39279#(<= ULTIMATE.start_main_~j~5 21), 39280#(<= ULTIMATE.start_main_~j~5 20), 39281#(<= ULTIMATE.start_main_~j~5 19), 39282#(<= ULTIMATE.start_main_~j~5 18), 39283#(<= ULTIMATE.start_main_~j~5 17), 39284#(<= ULTIMATE.start_main_~j~5 16), 39285#(<= ULTIMATE.start_main_~j~5 15), 39286#(<= ULTIMATE.start_main_~j~5 14), 39287#(<= ULTIMATE.start_main_~j~5 13), 39288#(<= ULTIMATE.start_main_~j~5 12), 39289#(<= ULTIMATE.start_main_~j~5 11), 39290#(<= ULTIMATE.start_main_~j~5 10), 39291#(<= ULTIMATE.start_main_~j~5 9), 39292#(<= ULTIMATE.start_main_~j~5 8), 39293#(<= ULTIMATE.start_main_~j~5 7), 39294#(<= ULTIMATE.start_main_~j~5 6), 39295#(<= ULTIMATE.start_main_~j~5 5)] [2018-07-23 13:41:16,836 INFO L134 CoverageAnalysis]: Checked inductivity of 3105 backedges. 2070 proven. 1035 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:16,836 INFO L450 AbstractCegarLoop]: Interpolant automaton has 94 states [2018-07-23 13:41:16,837 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2018-07-23 13:41:16,837 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2255, Invalid=6487, Unknown=0, NotChecked=0, Total=8742 [2018-07-23 13:41:16,837 INFO L87 Difference]: Start difference. First operand 141 states and 142 transitions. Second operand 94 states. [2018-07-23 13:41:17,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:17,335 INFO L93 Difference]: Finished difference Result 237 states and 239 transitions. [2018-07-23 13:41:17,335 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2018-07-23 13:41:17,335 INFO L78 Accepts]: Start accepts. Automaton has 94 states. Word has length 140 [2018-07-23 13:41:17,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:17,336 INFO L225 Difference]: With dead ends: 237 [2018-07-23 13:41:17,336 INFO L226 Difference]: Without dead ends: 142 [2018-07-23 13:41:17,338 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3060 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=4509, Invalid=14951, Unknown=0, NotChecked=0, Total=19460 [2018-07-23 13:41:17,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2018-07-23 13:41:17,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2018-07-23 13:41:17,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2018-07-23 13:41:17,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 143 transitions. [2018-07-23 13:41:17,349 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 143 transitions. Word has length 140 [2018-07-23 13:41:17,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:17,350 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 143 transitions. [2018-07-23 13:41:17,350 INFO L472 AbstractCegarLoop]: Interpolant automaton has 94 states. [2018-07-23 13:41:17,350 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 143 transitions. [2018-07-23 13:41:17,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-07-23 13:41:17,351 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:17,351 INFO L357 BasicCegarLoop]: trace histogram [46, 46, 45, 1, 1, 1, 1] [2018-07-23 13:41:17,351 INFO L414 AbstractCegarLoop]: === Iteration 92 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:17,351 INFO L82 PathProgramCache]: Analyzing trace with hash -843219869, now seen corresponding path program 90 times [2018-07-23 13:41:17,351 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:17,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:17,473 INFO L134 CoverageAnalysis]: Checked inductivity of 3151 backedges. 1081 proven. 2070 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:17,473 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:17,473 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [49] total 49 [2018-07-23 13:41:17,474 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:17,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:17,474 INFO L185 omatonBuilderFactory]: Interpolants [40192#(<= 39 ULTIMATE.start_main_~k~5), 40193#(<= 40 ULTIMATE.start_main_~k~5), 40194#(<= 41 ULTIMATE.start_main_~k~5), 40195#(<= 42 ULTIMATE.start_main_~k~5), 40196#(<= 43 ULTIMATE.start_main_~k~5), 40197#(<= 44 ULTIMATE.start_main_~k~5), 40198#(<= 45 ULTIMATE.start_main_~k~5), 40199#(<= 46 ULTIMATE.start_main_~k~5), 40200#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 40151#true, 40152#false, 40153#(<= 0 ULTIMATE.start_main_~k~5), 40154#(<= 1 ULTIMATE.start_main_~k~5), 40155#(<= 2 ULTIMATE.start_main_~k~5), 40156#(<= 3 ULTIMATE.start_main_~k~5), 40157#(<= 4 ULTIMATE.start_main_~k~5), 40158#(<= 5 ULTIMATE.start_main_~k~5), 40159#(<= 6 ULTIMATE.start_main_~k~5), 40160#(<= 7 ULTIMATE.start_main_~k~5), 40161#(<= 8 ULTIMATE.start_main_~k~5), 40162#(<= 9 ULTIMATE.start_main_~k~5), 40163#(<= 10 ULTIMATE.start_main_~k~5), 40164#(<= 11 ULTIMATE.start_main_~k~5), 40165#(<= 12 ULTIMATE.start_main_~k~5), 40166#(<= 13 ULTIMATE.start_main_~k~5), 40167#(<= 14 ULTIMATE.start_main_~k~5), 40168#(<= 15 ULTIMATE.start_main_~k~5), 40169#(<= 16 ULTIMATE.start_main_~k~5), 40170#(<= 17 ULTIMATE.start_main_~k~5), 40171#(<= 18 ULTIMATE.start_main_~k~5), 40172#(<= 19 ULTIMATE.start_main_~k~5), 40173#(<= 20 ULTIMATE.start_main_~k~5), 40174#(<= 21 ULTIMATE.start_main_~k~5), 40175#(<= 22 ULTIMATE.start_main_~k~5), 40176#(<= 23 ULTIMATE.start_main_~k~5), 40177#(<= 24 ULTIMATE.start_main_~k~5), 40178#(<= 25 ULTIMATE.start_main_~k~5), 40179#(<= 26 ULTIMATE.start_main_~k~5), 40180#(<= 27 ULTIMATE.start_main_~k~5), 40181#(<= 28 ULTIMATE.start_main_~k~5), 40182#(<= 29 ULTIMATE.start_main_~k~5), 40183#(<= 30 ULTIMATE.start_main_~k~5), 40184#(<= 31 ULTIMATE.start_main_~k~5), 40185#(<= 32 ULTIMATE.start_main_~k~5), 40186#(<= 33 ULTIMATE.start_main_~k~5), 40187#(<= 34 ULTIMATE.start_main_~k~5), 40188#(<= 35 ULTIMATE.start_main_~k~5), 40189#(<= 36 ULTIMATE.start_main_~k~5), 40190#(<= 37 ULTIMATE.start_main_~k~5), 40191#(<= 38 ULTIMATE.start_main_~k~5)] [2018-07-23 13:41:17,474 INFO L134 CoverageAnalysis]: Checked inductivity of 3151 backedges. 1081 proven. 2070 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:17,475 INFO L450 AbstractCegarLoop]: Interpolant automaton has 50 states [2018-07-23 13:41:17,475 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2018-07-23 13:41:17,475 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1178, Invalid=1272, Unknown=0, NotChecked=0, Total=2450 [2018-07-23 13:41:17,475 INFO L87 Difference]: Start difference. First operand 142 states and 143 transitions. Second operand 50 states. [2018-07-23 13:41:17,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:17,591 INFO L93 Difference]: Finished difference Result 150 states and 151 transitions. [2018-07-23 13:41:17,591 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2018-07-23 13:41:17,591 INFO L78 Accepts]: Start accepts. Automaton has 50 states. Word has length 141 [2018-07-23 13:41:17,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:17,592 INFO L225 Difference]: With dead ends: 150 [2018-07-23 13:41:17,592 INFO L226 Difference]: Without dead ends: 148 [2018-07-23 13:41:17,593 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2162 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3528, Invalid=5784, Unknown=0, NotChecked=0, Total=9312 [2018-07-23 13:41:17,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-07-23 13:41:17,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 144. [2018-07-23 13:41:17,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2018-07-23 13:41:17,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 145 transitions. [2018-07-23 13:41:17,606 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 145 transitions. Word has length 141 [2018-07-23 13:41:17,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:17,606 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 145 transitions. [2018-07-23 13:41:17,606 INFO L472 AbstractCegarLoop]: Interpolant automaton has 50 states. [2018-07-23 13:41:17,606 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 145 transitions. [2018-07-23 13:41:17,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-07-23 13:41:17,607 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:17,607 INFO L357 BasicCegarLoop]: trace histogram [47, 46, 46, 1, 1, 1, 1] [2018-07-23 13:41:17,607 INFO L414 AbstractCegarLoop]: === Iteration 93 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:17,607 INFO L82 PathProgramCache]: Analyzing trace with hash 1414590859, now seen corresponding path program 91 times [2018-07-23 13:41:17,607 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:17,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:17,797 INFO L134 CoverageAnalysis]: Checked inductivity of 3243 backedges. 2162 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:17,797 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:17,797 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [95] total 95 [2018-07-23 13:41:17,798 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:17,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:17,798 INFO L185 omatonBuilderFactory]: Interpolants [40960#(<= ULTIMATE.start_main_~j~5 18), 40961#(<= ULTIMATE.start_main_~j~5 17), 40962#(<= ULTIMATE.start_main_~j~5 16), 40963#(<= ULTIMATE.start_main_~j~5 15), 40964#(<= ULTIMATE.start_main_~j~5 14), 40965#(<= ULTIMATE.start_main_~j~5 13), 40966#(<= ULTIMATE.start_main_~j~5 12), 40967#(<= ULTIMATE.start_main_~j~5 11), 40968#(<= ULTIMATE.start_main_~j~5 10), 40969#(<= ULTIMATE.start_main_~j~5 9), 40970#(<= ULTIMATE.start_main_~j~5 8), 40971#(<= ULTIMATE.start_main_~j~5 7), 40972#(<= ULTIMATE.start_main_~j~5 6), 40973#(<= ULTIMATE.start_main_~j~5 5), 40974#(<= ULTIMATE.start_main_~j~5 4), 40975#(<= ULTIMATE.start_main_~j~5 3), 40976#(<= ULTIMATE.start_main_~j~5 2), 40977#(<= ULTIMATE.start_main_~j~5 1), 40978#(<= ULTIMATE.start_main_~j~5 0), 40883#true, 40884#false, 40885#(<= ULTIMATE.start_main_~i~5 0), 40886#(<= ULTIMATE.start_main_~i~5 1), 40887#(<= ULTIMATE.start_main_~i~5 2), 40888#(<= ULTIMATE.start_main_~i~5 3), 40889#(<= ULTIMATE.start_main_~i~5 4), 40890#(<= ULTIMATE.start_main_~i~5 5), 40891#(<= ULTIMATE.start_main_~i~5 6), 40892#(<= ULTIMATE.start_main_~i~5 7), 40893#(<= ULTIMATE.start_main_~i~5 8), 40894#(<= ULTIMATE.start_main_~i~5 9), 40895#(<= ULTIMATE.start_main_~i~5 10), 40896#(<= ULTIMATE.start_main_~i~5 11), 40897#(<= ULTIMATE.start_main_~i~5 12), 40898#(<= ULTIMATE.start_main_~i~5 13), 40899#(<= ULTIMATE.start_main_~i~5 14), 40900#(<= ULTIMATE.start_main_~i~5 15), 40901#(<= ULTIMATE.start_main_~i~5 16), 40902#(<= ULTIMATE.start_main_~i~5 17), 40903#(<= ULTIMATE.start_main_~i~5 18), 40904#(<= ULTIMATE.start_main_~i~5 19), 40905#(<= ULTIMATE.start_main_~i~5 20), 40906#(<= ULTIMATE.start_main_~i~5 21), 40907#(<= ULTIMATE.start_main_~i~5 22), 40908#(<= ULTIMATE.start_main_~i~5 23), 40909#(<= ULTIMATE.start_main_~i~5 24), 40910#(<= ULTIMATE.start_main_~i~5 25), 40911#(<= ULTIMATE.start_main_~i~5 26), 40912#(<= ULTIMATE.start_main_~i~5 27), 40913#(<= ULTIMATE.start_main_~i~5 28), 40914#(<= ULTIMATE.start_main_~i~5 29), 40915#(<= ULTIMATE.start_main_~i~5 30), 40916#(<= ULTIMATE.start_main_~i~5 31), 40917#(<= ULTIMATE.start_main_~i~5 32), 40918#(<= ULTIMATE.start_main_~i~5 33), 40919#(<= ULTIMATE.start_main_~i~5 34), 40920#(<= ULTIMATE.start_main_~i~5 35), 40921#(<= ULTIMATE.start_main_~i~5 36), 40922#(<= ULTIMATE.start_main_~i~5 37), 40923#(<= ULTIMATE.start_main_~i~5 38), 40924#(<= ULTIMATE.start_main_~i~5 39), 40925#(<= ULTIMATE.start_main_~i~5 40), 40926#(<= ULTIMATE.start_main_~i~5 41), 40927#(<= ULTIMATE.start_main_~i~5 42), 40928#(<= ULTIMATE.start_main_~i~5 43), 40929#(<= ULTIMATE.start_main_~i~5 44), 40930#(<= ULTIMATE.start_main_~i~5 45), 40931#(<= ULTIMATE.start_main_~i~5 46), 40932#(<= ULTIMATE.start_main_~j~5 46), 40933#(<= ULTIMATE.start_main_~j~5 45), 40934#(<= ULTIMATE.start_main_~j~5 44), 40935#(<= ULTIMATE.start_main_~j~5 43), 40936#(<= ULTIMATE.start_main_~j~5 42), 40937#(<= ULTIMATE.start_main_~j~5 41), 40938#(<= ULTIMATE.start_main_~j~5 40), 40939#(<= ULTIMATE.start_main_~j~5 39), 40940#(<= ULTIMATE.start_main_~j~5 38), 40941#(<= ULTIMATE.start_main_~j~5 37), 40942#(<= ULTIMATE.start_main_~j~5 36), 40943#(<= ULTIMATE.start_main_~j~5 35), 40944#(<= ULTIMATE.start_main_~j~5 34), 40945#(<= ULTIMATE.start_main_~j~5 33), 40946#(<= ULTIMATE.start_main_~j~5 32), 40947#(<= ULTIMATE.start_main_~j~5 31), 40948#(<= ULTIMATE.start_main_~j~5 30), 40949#(<= ULTIMATE.start_main_~j~5 29), 40950#(<= ULTIMATE.start_main_~j~5 28), 40951#(<= ULTIMATE.start_main_~j~5 27), 40952#(<= ULTIMATE.start_main_~j~5 26), 40953#(<= ULTIMATE.start_main_~j~5 25), 40954#(<= ULTIMATE.start_main_~j~5 24), 40955#(<= ULTIMATE.start_main_~j~5 23), 40956#(<= ULTIMATE.start_main_~j~5 22), 40957#(<= ULTIMATE.start_main_~j~5 21), 40958#(<= ULTIMATE.start_main_~j~5 20), 40959#(<= ULTIMATE.start_main_~j~5 19)] [2018-07-23 13:41:17,798 INFO L134 CoverageAnalysis]: Checked inductivity of 3243 backedges. 2162 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:17,799 INFO L450 AbstractCegarLoop]: Interpolant automaton has 96 states [2018-07-23 13:41:17,799 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2018-07-23 13:41:17,800 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2351, Invalid=6769, Unknown=0, NotChecked=0, Total=9120 [2018-07-23 13:41:17,800 INFO L87 Difference]: Start difference. First operand 144 states and 145 transitions. Second operand 96 states. [2018-07-23 13:41:18,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:18,353 INFO L93 Difference]: Finished difference Result 242 states and 244 transitions. [2018-07-23 13:41:18,353 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2018-07-23 13:41:18,353 INFO L78 Accepts]: Start accepts. Automaton has 96 states. Word has length 143 [2018-07-23 13:41:18,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:18,354 INFO L225 Difference]: With dead ends: 242 [2018-07-23 13:41:18,354 INFO L226 Difference]: Without dead ends: 145 [2018-07-23 13:41:18,356 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3197 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=4701, Invalid=15605, Unknown=0, NotChecked=0, Total=20306 [2018-07-23 13:41:18,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2018-07-23 13:41:18,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2018-07-23 13:41:18,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2018-07-23 13:41:18,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 146 transitions. [2018-07-23 13:41:18,378 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 146 transitions. Word has length 143 [2018-07-23 13:41:18,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:18,379 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 146 transitions. [2018-07-23 13:41:18,379 INFO L472 AbstractCegarLoop]: Interpolant automaton has 96 states. [2018-07-23 13:41:18,379 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 146 transitions. [2018-07-23 13:41:18,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2018-07-23 13:41:18,380 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:18,380 INFO L357 BasicCegarLoop]: trace histogram [47, 47, 46, 1, 1, 1, 1] [2018-07-23 13:41:18,380 INFO L414 AbstractCegarLoop]: === Iteration 94 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:18,381 INFO L82 PathProgramCache]: Analyzing trace with hash 1112839410, now seen corresponding path program 92 times [2018-07-23 13:41:18,381 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:18,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:18,641 INFO L134 CoverageAnalysis]: Checked inductivity of 3290 backedges. 1128 proven. 2162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:18,641 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:18,642 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [50] total 50 [2018-07-23 13:41:18,642 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:18,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:18,642 INFO L185 omatonBuilderFactory]: Interpolants [41856#(<= 7 ULTIMATE.start_main_~k~5), 41857#(<= 8 ULTIMATE.start_main_~k~5), 41858#(<= 9 ULTIMATE.start_main_~k~5), 41859#(<= 10 ULTIMATE.start_main_~k~5), 41860#(<= 11 ULTIMATE.start_main_~k~5), 41861#(<= 12 ULTIMATE.start_main_~k~5), 41862#(<= 13 ULTIMATE.start_main_~k~5), 41863#(<= 14 ULTIMATE.start_main_~k~5), 41864#(<= 15 ULTIMATE.start_main_~k~5), 41865#(<= 16 ULTIMATE.start_main_~k~5), 41866#(<= 17 ULTIMATE.start_main_~k~5), 41867#(<= 18 ULTIMATE.start_main_~k~5), 41868#(<= 19 ULTIMATE.start_main_~k~5), 41869#(<= 20 ULTIMATE.start_main_~k~5), 41870#(<= 21 ULTIMATE.start_main_~k~5), 41871#(<= 22 ULTIMATE.start_main_~k~5), 41872#(<= 23 ULTIMATE.start_main_~k~5), 41873#(<= 24 ULTIMATE.start_main_~k~5), 41874#(<= 25 ULTIMATE.start_main_~k~5), 41875#(<= 26 ULTIMATE.start_main_~k~5), 41876#(<= 27 ULTIMATE.start_main_~k~5), 41877#(<= 28 ULTIMATE.start_main_~k~5), 41878#(<= 29 ULTIMATE.start_main_~k~5), 41879#(<= 30 ULTIMATE.start_main_~k~5), 41880#(<= 31 ULTIMATE.start_main_~k~5), 41881#(<= 32 ULTIMATE.start_main_~k~5), 41882#(<= 33 ULTIMATE.start_main_~k~5), 41883#(<= 34 ULTIMATE.start_main_~k~5), 41884#(<= 35 ULTIMATE.start_main_~k~5), 41885#(<= 36 ULTIMATE.start_main_~k~5), 41886#(<= 37 ULTIMATE.start_main_~k~5), 41887#(<= 38 ULTIMATE.start_main_~k~5), 41888#(<= 39 ULTIMATE.start_main_~k~5), 41889#(<= 40 ULTIMATE.start_main_~k~5), 41890#(<= 41 ULTIMATE.start_main_~k~5), 41891#(<= 42 ULTIMATE.start_main_~k~5), 41892#(<= 43 ULTIMATE.start_main_~k~5), 41893#(<= 44 ULTIMATE.start_main_~k~5), 41894#(<= 45 ULTIMATE.start_main_~k~5), 41895#(<= 46 ULTIMATE.start_main_~k~5), 41896#(<= 47 ULTIMATE.start_main_~k~5), 41897#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 41847#true, 41848#false, 41849#(<= 0 ULTIMATE.start_main_~k~5), 41850#(<= 1 ULTIMATE.start_main_~k~5), 41851#(<= 2 ULTIMATE.start_main_~k~5), 41852#(<= 3 ULTIMATE.start_main_~k~5), 41853#(<= 4 ULTIMATE.start_main_~k~5), 41854#(<= 5 ULTIMATE.start_main_~k~5), 41855#(<= 6 ULTIMATE.start_main_~k~5)] [2018-07-23 13:41:18,642 INFO L134 CoverageAnalysis]: Checked inductivity of 3290 backedges. 1128 proven. 2162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:18,643 INFO L450 AbstractCegarLoop]: Interpolant automaton has 51 states [2018-07-23 13:41:18,643 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2018-07-23 13:41:18,643 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1227, Invalid=1323, Unknown=0, NotChecked=0, Total=2550 [2018-07-23 13:41:18,643 INFO L87 Difference]: Start difference. First operand 145 states and 146 transitions. Second operand 51 states. [2018-07-23 13:41:18,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:18,758 INFO L93 Difference]: Finished difference Result 153 states and 154 transitions. [2018-07-23 13:41:18,758 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2018-07-23 13:41:18,758 INFO L78 Accepts]: Start accepts. Automaton has 51 states. Word has length 144 [2018-07-23 13:41:18,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:18,759 INFO L225 Difference]: With dead ends: 153 [2018-07-23 13:41:18,759 INFO L226 Difference]: Without dead ends: 151 [2018-07-23 13:41:18,760 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2256 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3675, Invalid=6027, Unknown=0, NotChecked=0, Total=9702 [2018-07-23 13:41:18,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2018-07-23 13:41:18,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 147. [2018-07-23 13:41:18,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2018-07-23 13:41:18,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 148 transitions. [2018-07-23 13:41:18,778 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 148 transitions. Word has length 144 [2018-07-23 13:41:18,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:18,778 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 148 transitions. [2018-07-23 13:41:18,778 INFO L472 AbstractCegarLoop]: Interpolant automaton has 51 states. [2018-07-23 13:41:18,778 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 148 transitions. [2018-07-23 13:41:18,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-07-23 13:41:18,779 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:18,779 INFO L357 BasicCegarLoop]: trace histogram [48, 47, 47, 1, 1, 1, 1] [2018-07-23 13:41:18,779 INFO L414 AbstractCegarLoop]: === Iteration 95 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:18,780 INFO L82 PathProgramCache]: Analyzing trace with hash -8117670, now seen corresponding path program 93 times [2018-07-23 13:41:18,780 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:18,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:18,968 INFO L134 CoverageAnalysis]: Checked inductivity of 3384 backedges. 2256 proven. 1128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:18,969 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:18,969 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [97] total 97 [2018-07-23 13:41:18,969 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:18,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:18,970 INFO L185 omatonBuilderFactory]: Interpolants [42594#true, 42595#false, 42596#(<= ULTIMATE.start_main_~i~5 0), 42597#(<= ULTIMATE.start_main_~i~5 1), 42598#(<= ULTIMATE.start_main_~i~5 2), 42599#(<= ULTIMATE.start_main_~i~5 3), 42600#(<= ULTIMATE.start_main_~i~5 4), 42601#(<= ULTIMATE.start_main_~i~5 5), 42602#(<= ULTIMATE.start_main_~i~5 6), 42603#(<= ULTIMATE.start_main_~i~5 7), 42604#(<= ULTIMATE.start_main_~i~5 8), 42605#(<= ULTIMATE.start_main_~i~5 9), 42606#(<= ULTIMATE.start_main_~i~5 10), 42607#(<= ULTIMATE.start_main_~i~5 11), 42608#(<= ULTIMATE.start_main_~i~5 12), 42609#(<= ULTIMATE.start_main_~i~5 13), 42610#(<= ULTIMATE.start_main_~i~5 14), 42611#(<= ULTIMATE.start_main_~i~5 15), 42612#(<= ULTIMATE.start_main_~i~5 16), 42613#(<= ULTIMATE.start_main_~i~5 17), 42614#(<= ULTIMATE.start_main_~i~5 18), 42615#(<= ULTIMATE.start_main_~i~5 19), 42616#(<= ULTIMATE.start_main_~i~5 20), 42617#(<= ULTIMATE.start_main_~i~5 21), 42618#(<= ULTIMATE.start_main_~i~5 22), 42619#(<= ULTIMATE.start_main_~i~5 23), 42620#(<= ULTIMATE.start_main_~i~5 24), 42621#(<= ULTIMATE.start_main_~i~5 25), 42622#(<= ULTIMATE.start_main_~i~5 26), 42623#(<= ULTIMATE.start_main_~i~5 27), 42624#(<= ULTIMATE.start_main_~i~5 28), 42625#(<= ULTIMATE.start_main_~i~5 29), 42626#(<= ULTIMATE.start_main_~i~5 30), 42627#(<= ULTIMATE.start_main_~i~5 31), 42628#(<= ULTIMATE.start_main_~i~5 32), 42629#(<= ULTIMATE.start_main_~i~5 33), 42630#(<= ULTIMATE.start_main_~i~5 34), 42631#(<= ULTIMATE.start_main_~i~5 35), 42632#(<= ULTIMATE.start_main_~i~5 36), 42633#(<= ULTIMATE.start_main_~i~5 37), 42634#(<= ULTIMATE.start_main_~i~5 38), 42635#(<= ULTIMATE.start_main_~i~5 39), 42636#(<= ULTIMATE.start_main_~i~5 40), 42637#(<= ULTIMATE.start_main_~i~5 41), 42638#(<= ULTIMATE.start_main_~i~5 42), 42639#(<= ULTIMATE.start_main_~i~5 43), 42640#(<= ULTIMATE.start_main_~i~5 44), 42641#(<= ULTIMATE.start_main_~i~5 45), 42642#(<= ULTIMATE.start_main_~i~5 46), 42643#(<= ULTIMATE.start_main_~i~5 47), 42644#(<= ULTIMATE.start_main_~j~5 47), 42645#(<= ULTIMATE.start_main_~j~5 46), 42646#(<= ULTIMATE.start_main_~j~5 45), 42647#(<= ULTIMATE.start_main_~j~5 44), 42648#(<= ULTIMATE.start_main_~j~5 43), 42649#(<= ULTIMATE.start_main_~j~5 42), 42650#(<= ULTIMATE.start_main_~j~5 41), 42651#(<= ULTIMATE.start_main_~j~5 40), 42652#(<= ULTIMATE.start_main_~j~5 39), 42653#(<= ULTIMATE.start_main_~j~5 38), 42654#(<= ULTIMATE.start_main_~j~5 37), 42655#(<= ULTIMATE.start_main_~j~5 36), 42656#(<= ULTIMATE.start_main_~j~5 35), 42657#(<= ULTIMATE.start_main_~j~5 34), 42658#(<= ULTIMATE.start_main_~j~5 33), 42659#(<= ULTIMATE.start_main_~j~5 32), 42660#(<= ULTIMATE.start_main_~j~5 31), 42661#(<= ULTIMATE.start_main_~j~5 30), 42662#(<= ULTIMATE.start_main_~j~5 29), 42663#(<= ULTIMATE.start_main_~j~5 28), 42664#(<= ULTIMATE.start_main_~j~5 27), 42665#(<= ULTIMATE.start_main_~j~5 26), 42666#(<= ULTIMATE.start_main_~j~5 25), 42667#(<= ULTIMATE.start_main_~j~5 24), 42668#(<= ULTIMATE.start_main_~j~5 23), 42669#(<= ULTIMATE.start_main_~j~5 22), 42670#(<= ULTIMATE.start_main_~j~5 21), 42671#(<= ULTIMATE.start_main_~j~5 20), 42672#(<= ULTIMATE.start_main_~j~5 19), 42673#(<= ULTIMATE.start_main_~j~5 18), 42674#(<= ULTIMATE.start_main_~j~5 17), 42675#(<= ULTIMATE.start_main_~j~5 16), 42676#(<= ULTIMATE.start_main_~j~5 15), 42677#(<= ULTIMATE.start_main_~j~5 14), 42678#(<= ULTIMATE.start_main_~j~5 13), 42679#(<= ULTIMATE.start_main_~j~5 12), 42680#(<= ULTIMATE.start_main_~j~5 11), 42681#(<= ULTIMATE.start_main_~j~5 10), 42682#(<= ULTIMATE.start_main_~j~5 9), 42683#(<= ULTIMATE.start_main_~j~5 8), 42684#(<= ULTIMATE.start_main_~j~5 7), 42685#(<= ULTIMATE.start_main_~j~5 6), 42686#(<= ULTIMATE.start_main_~j~5 5), 42687#(<= ULTIMATE.start_main_~j~5 4), 42688#(<= ULTIMATE.start_main_~j~5 3), 42689#(<= ULTIMATE.start_main_~j~5 2), 42690#(<= ULTIMATE.start_main_~j~5 1), 42691#(<= ULTIMATE.start_main_~j~5 0)] [2018-07-23 13:41:18,970 INFO L134 CoverageAnalysis]: Checked inductivity of 3384 backedges. 2256 proven. 1128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:18,970 INFO L450 AbstractCegarLoop]: Interpolant automaton has 98 states [2018-07-23 13:41:18,970 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2018-07-23 13:41:18,971 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2449, Invalid=7057, Unknown=0, NotChecked=0, Total=9506 [2018-07-23 13:41:18,971 INFO L87 Difference]: Start difference. First operand 147 states and 148 transitions. Second operand 98 states. [2018-07-23 13:41:19,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:19,292 INFO L93 Difference]: Finished difference Result 247 states and 249 transitions. [2018-07-23 13:41:19,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2018-07-23 13:41:19,292 INFO L78 Accepts]: Start accepts. Automaton has 98 states. Word has length 146 [2018-07-23 13:41:19,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:19,293 INFO L225 Difference]: With dead ends: 247 [2018-07-23 13:41:19,293 INFO L226 Difference]: Without dead ends: 148 [2018-07-23 13:41:19,294 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 144 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3337 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=4897, Invalid=16273, Unknown=0, NotChecked=0, Total=21170 [2018-07-23 13:41:19,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-07-23 13:41:19,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2018-07-23 13:41:19,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2018-07-23 13:41:19,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 149 transitions. [2018-07-23 13:41:19,307 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 149 transitions. Word has length 146 [2018-07-23 13:41:19,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:19,308 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 149 transitions. [2018-07-23 13:41:19,308 INFO L472 AbstractCegarLoop]: Interpolant automaton has 98 states. [2018-07-23 13:41:19,308 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 149 transitions. [2018-07-23 13:41:19,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-07-23 13:41:19,309 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:19,309 INFO L357 BasicCegarLoop]: trace histogram [48, 48, 47, 1, 1, 1, 1] [2018-07-23 13:41:19,309 INFO L414 AbstractCegarLoop]: === Iteration 96 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:19,309 INFO L82 PathProgramCache]: Analyzing trace with hash -118984301, now seen corresponding path program 94 times [2018-07-23 13:41:19,309 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:19,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:19,464 INFO L134 CoverageAnalysis]: Checked inductivity of 3432 backedges. 1176 proven. 2256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:19,464 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:19,465 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [51] total 51 [2018-07-23 13:41:19,465 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:19,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:19,465 INFO L185 omatonBuilderFactory]: Interpolants [43578#true, 43579#false, 43580#(<= 0 ULTIMATE.start_main_~k~5), 43581#(<= 1 ULTIMATE.start_main_~k~5), 43582#(<= 2 ULTIMATE.start_main_~k~5), 43583#(<= 3 ULTIMATE.start_main_~k~5), 43584#(<= 4 ULTIMATE.start_main_~k~5), 43585#(<= 5 ULTIMATE.start_main_~k~5), 43586#(<= 6 ULTIMATE.start_main_~k~5), 43587#(<= 7 ULTIMATE.start_main_~k~5), 43588#(<= 8 ULTIMATE.start_main_~k~5), 43589#(<= 9 ULTIMATE.start_main_~k~5), 43590#(<= 10 ULTIMATE.start_main_~k~5), 43591#(<= 11 ULTIMATE.start_main_~k~5), 43592#(<= 12 ULTIMATE.start_main_~k~5), 43593#(<= 13 ULTIMATE.start_main_~k~5), 43594#(<= 14 ULTIMATE.start_main_~k~5), 43595#(<= 15 ULTIMATE.start_main_~k~5), 43596#(<= 16 ULTIMATE.start_main_~k~5), 43597#(<= 17 ULTIMATE.start_main_~k~5), 43598#(<= 18 ULTIMATE.start_main_~k~5), 43599#(<= 19 ULTIMATE.start_main_~k~5), 43600#(<= 20 ULTIMATE.start_main_~k~5), 43601#(<= 21 ULTIMATE.start_main_~k~5), 43602#(<= 22 ULTIMATE.start_main_~k~5), 43603#(<= 23 ULTIMATE.start_main_~k~5), 43604#(<= 24 ULTIMATE.start_main_~k~5), 43605#(<= 25 ULTIMATE.start_main_~k~5), 43606#(<= 26 ULTIMATE.start_main_~k~5), 43607#(<= 27 ULTIMATE.start_main_~k~5), 43608#(<= 28 ULTIMATE.start_main_~k~5), 43609#(<= 29 ULTIMATE.start_main_~k~5), 43610#(<= 30 ULTIMATE.start_main_~k~5), 43611#(<= 31 ULTIMATE.start_main_~k~5), 43612#(<= 32 ULTIMATE.start_main_~k~5), 43613#(<= 33 ULTIMATE.start_main_~k~5), 43614#(<= 34 ULTIMATE.start_main_~k~5), 43615#(<= 35 ULTIMATE.start_main_~k~5), 43616#(<= 36 ULTIMATE.start_main_~k~5), 43617#(<= 37 ULTIMATE.start_main_~k~5), 43618#(<= 38 ULTIMATE.start_main_~k~5), 43619#(<= 39 ULTIMATE.start_main_~k~5), 43620#(<= 40 ULTIMATE.start_main_~k~5), 43621#(<= 41 ULTIMATE.start_main_~k~5), 43622#(<= 42 ULTIMATE.start_main_~k~5), 43623#(<= 43 ULTIMATE.start_main_~k~5), 43624#(<= 44 ULTIMATE.start_main_~k~5), 43625#(<= 45 ULTIMATE.start_main_~k~5), 43626#(<= 46 ULTIMATE.start_main_~k~5), 43627#(<= 47 ULTIMATE.start_main_~k~5), 43628#(<= 48 ULTIMATE.start_main_~k~5), 43629#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond)] [2018-07-23 13:41:19,466 INFO L134 CoverageAnalysis]: Checked inductivity of 3432 backedges. 1176 proven. 2256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:19,466 INFO L450 AbstractCegarLoop]: Interpolant automaton has 52 states [2018-07-23 13:41:19,466 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2018-07-23 13:41:19,467 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1277, Invalid=1375, Unknown=0, NotChecked=0, Total=2652 [2018-07-23 13:41:19,467 INFO L87 Difference]: Start difference. First operand 148 states and 149 transitions. Second operand 52 states. [2018-07-23 13:41:19,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:19,628 INFO L93 Difference]: Finished difference Result 156 states and 157 transitions. [2018-07-23 13:41:19,628 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2018-07-23 13:41:19,628 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 147 [2018-07-23 13:41:19,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:19,629 INFO L225 Difference]: With dead ends: 156 [2018-07-23 13:41:19,629 INFO L226 Difference]: Without dead ends: 154 [2018-07-23 13:41:19,630 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2352 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3825, Invalid=6275, Unknown=0, NotChecked=0, Total=10100 [2018-07-23 13:41:19,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2018-07-23 13:41:19,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 150. [2018-07-23 13:41:19,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2018-07-23 13:41:19,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 151 transitions. [2018-07-23 13:41:19,642 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 151 transitions. Word has length 147 [2018-07-23 13:41:19,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:19,643 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 151 transitions. [2018-07-23 13:41:19,643 INFO L472 AbstractCegarLoop]: Interpolant automaton has 52 states. [2018-07-23 13:41:19,643 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 151 transitions. [2018-07-23 13:41:19,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-07-23 13:41:19,644 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:19,644 INFO L357 BasicCegarLoop]: trace histogram [49, 48, 48, 1, 1, 1, 1] [2018-07-23 13:41:19,644 INFO L414 AbstractCegarLoop]: === Iteration 97 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:19,644 INFO L82 PathProgramCache]: Analyzing trace with hash 1620269755, now seen corresponding path program 95 times [2018-07-23 13:41:19,644 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:19,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:19,851 INFO L134 CoverageAnalysis]: Checked inductivity of 3528 backedges. 2352 proven. 1176 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:19,852 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:19,852 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [99] total 99 [2018-07-23 13:41:19,852 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:19,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:19,852 INFO L185 omatonBuilderFactory]: Interpolants [44340#true, 44341#false, 44342#(<= ULTIMATE.start_main_~i~5 0), 44343#(<= ULTIMATE.start_main_~i~5 1), 44344#(<= ULTIMATE.start_main_~i~5 2), 44345#(<= ULTIMATE.start_main_~i~5 3), 44346#(<= ULTIMATE.start_main_~i~5 4), 44347#(<= ULTIMATE.start_main_~i~5 5), 44348#(<= ULTIMATE.start_main_~i~5 6), 44349#(<= ULTIMATE.start_main_~i~5 7), 44350#(<= ULTIMATE.start_main_~i~5 8), 44351#(<= ULTIMATE.start_main_~i~5 9), 44352#(<= ULTIMATE.start_main_~i~5 10), 44353#(<= ULTIMATE.start_main_~i~5 11), 44354#(<= ULTIMATE.start_main_~i~5 12), 44355#(<= ULTIMATE.start_main_~i~5 13), 44356#(<= ULTIMATE.start_main_~i~5 14), 44357#(<= ULTIMATE.start_main_~i~5 15), 44358#(<= ULTIMATE.start_main_~i~5 16), 44359#(<= ULTIMATE.start_main_~i~5 17), 44360#(<= ULTIMATE.start_main_~i~5 18), 44361#(<= ULTIMATE.start_main_~i~5 19), 44362#(<= ULTIMATE.start_main_~i~5 20), 44363#(<= ULTIMATE.start_main_~i~5 21), 44364#(<= ULTIMATE.start_main_~i~5 22), 44365#(<= ULTIMATE.start_main_~i~5 23), 44366#(<= ULTIMATE.start_main_~i~5 24), 44367#(<= ULTIMATE.start_main_~i~5 25), 44368#(<= ULTIMATE.start_main_~i~5 26), 44369#(<= ULTIMATE.start_main_~i~5 27), 44370#(<= ULTIMATE.start_main_~i~5 28), 44371#(<= ULTIMATE.start_main_~i~5 29), 44372#(<= ULTIMATE.start_main_~i~5 30), 44373#(<= ULTIMATE.start_main_~i~5 31), 44374#(<= ULTIMATE.start_main_~i~5 32), 44375#(<= ULTIMATE.start_main_~i~5 33), 44376#(<= ULTIMATE.start_main_~i~5 34), 44377#(<= ULTIMATE.start_main_~i~5 35), 44378#(<= ULTIMATE.start_main_~i~5 36), 44379#(<= ULTIMATE.start_main_~i~5 37), 44380#(<= ULTIMATE.start_main_~i~5 38), 44381#(<= ULTIMATE.start_main_~i~5 39), 44382#(<= ULTIMATE.start_main_~i~5 40), 44383#(<= ULTIMATE.start_main_~i~5 41), 44384#(<= ULTIMATE.start_main_~i~5 42), 44385#(<= ULTIMATE.start_main_~i~5 43), 44386#(<= ULTIMATE.start_main_~i~5 44), 44387#(<= ULTIMATE.start_main_~i~5 45), 44388#(<= ULTIMATE.start_main_~i~5 46), 44389#(<= ULTIMATE.start_main_~i~5 47), 44390#(<= ULTIMATE.start_main_~i~5 48), 44391#(<= ULTIMATE.start_main_~j~5 48), 44392#(<= ULTIMATE.start_main_~j~5 47), 44393#(<= ULTIMATE.start_main_~j~5 46), 44394#(<= ULTIMATE.start_main_~j~5 45), 44395#(<= ULTIMATE.start_main_~j~5 44), 44396#(<= ULTIMATE.start_main_~j~5 43), 44397#(<= ULTIMATE.start_main_~j~5 42), 44398#(<= ULTIMATE.start_main_~j~5 41), 44399#(<= ULTIMATE.start_main_~j~5 40), 44400#(<= ULTIMATE.start_main_~j~5 39), 44401#(<= ULTIMATE.start_main_~j~5 38), 44402#(<= ULTIMATE.start_main_~j~5 37), 44403#(<= ULTIMATE.start_main_~j~5 36), 44404#(<= ULTIMATE.start_main_~j~5 35), 44405#(<= ULTIMATE.start_main_~j~5 34), 44406#(<= ULTIMATE.start_main_~j~5 33), 44407#(<= ULTIMATE.start_main_~j~5 32), 44408#(<= ULTIMATE.start_main_~j~5 31), 44409#(<= ULTIMATE.start_main_~j~5 30), 44410#(<= ULTIMATE.start_main_~j~5 29), 44411#(<= ULTIMATE.start_main_~j~5 28), 44412#(<= ULTIMATE.start_main_~j~5 27), 44413#(<= ULTIMATE.start_main_~j~5 26), 44414#(<= ULTIMATE.start_main_~j~5 25), 44415#(<= ULTIMATE.start_main_~j~5 24), 44416#(<= ULTIMATE.start_main_~j~5 23), 44417#(<= ULTIMATE.start_main_~j~5 22), 44418#(<= ULTIMATE.start_main_~j~5 21), 44419#(<= ULTIMATE.start_main_~j~5 20), 44420#(<= ULTIMATE.start_main_~j~5 19), 44421#(<= ULTIMATE.start_main_~j~5 18), 44422#(<= ULTIMATE.start_main_~j~5 17), 44423#(<= ULTIMATE.start_main_~j~5 16), 44424#(<= ULTIMATE.start_main_~j~5 15), 44425#(<= ULTIMATE.start_main_~j~5 14), 44426#(<= ULTIMATE.start_main_~j~5 13), 44427#(<= ULTIMATE.start_main_~j~5 12), 44428#(<= ULTIMATE.start_main_~j~5 11), 44429#(<= ULTIMATE.start_main_~j~5 10), 44430#(<= ULTIMATE.start_main_~j~5 9), 44431#(<= ULTIMATE.start_main_~j~5 8), 44432#(<= ULTIMATE.start_main_~j~5 7), 44433#(<= ULTIMATE.start_main_~j~5 6), 44434#(<= ULTIMATE.start_main_~j~5 5), 44435#(<= ULTIMATE.start_main_~j~5 4), 44436#(<= ULTIMATE.start_main_~j~5 3), 44437#(<= ULTIMATE.start_main_~j~5 2), 44438#(<= ULTIMATE.start_main_~j~5 1), 44439#(<= ULTIMATE.start_main_~j~5 0)] [2018-07-23 13:41:19,853 INFO L134 CoverageAnalysis]: Checked inductivity of 3528 backedges. 2352 proven. 1176 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:19,853 INFO L450 AbstractCegarLoop]: Interpolant automaton has 100 states [2018-07-23 13:41:19,853 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2018-07-23 13:41:19,854 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2549, Invalid=7351, Unknown=0, NotChecked=0, Total=9900 [2018-07-23 13:41:19,854 INFO L87 Difference]: Start difference. First operand 150 states and 151 transitions. Second operand 100 states. [2018-07-23 13:41:20,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:20,388 INFO L93 Difference]: Finished difference Result 252 states and 254 transitions. [2018-07-23 13:41:20,388 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2018-07-23 13:41:20,388 INFO L78 Accepts]: Start accepts. Automaton has 100 states. Word has length 149 [2018-07-23 13:41:20,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:20,389 INFO L225 Difference]: With dead ends: 252 [2018-07-23 13:41:20,389 INFO L226 Difference]: Without dead ends: 151 [2018-07-23 13:41:20,391 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3480 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5097, Invalid=16955, Unknown=0, NotChecked=0, Total=22052 [2018-07-23 13:41:20,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2018-07-23 13:41:20,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2018-07-23 13:41:20,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2018-07-23 13:41:20,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 152 transitions. [2018-07-23 13:41:20,410 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 152 transitions. Word has length 149 [2018-07-23 13:41:20,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:20,410 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 152 transitions. [2018-07-23 13:41:20,410 INFO L472 AbstractCegarLoop]: Interpolant automaton has 100 states. [2018-07-23 13:41:20,410 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 152 transitions. [2018-07-23 13:41:20,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2018-07-23 13:41:20,411 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:20,411 INFO L357 BasicCegarLoop]: trace histogram [49, 49, 48, 1, 1, 1, 1] [2018-07-23 13:41:20,411 INFO L414 AbstractCegarLoop]: === Iteration 98 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:20,412 INFO L82 PathProgramCache]: Analyzing trace with hash 1622316258, now seen corresponding path program 96 times [2018-07-23 13:41:20,412 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:20,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:20,607 INFO L134 CoverageAnalysis]: Checked inductivity of 3577 backedges. 1225 proven. 2352 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:20,607 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:20,608 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [52] total 52 [2018-07-23 13:41:20,608 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:20,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:20,608 INFO L185 omatonBuilderFactory]: Interpolants [45344#true, 45345#false, 45346#(<= 0 ULTIMATE.start_main_~k~5), 45347#(<= 1 ULTIMATE.start_main_~k~5), 45348#(<= 2 ULTIMATE.start_main_~k~5), 45349#(<= 3 ULTIMATE.start_main_~k~5), 45350#(<= 4 ULTIMATE.start_main_~k~5), 45351#(<= 5 ULTIMATE.start_main_~k~5), 45352#(<= 6 ULTIMATE.start_main_~k~5), 45353#(<= 7 ULTIMATE.start_main_~k~5), 45354#(<= 8 ULTIMATE.start_main_~k~5), 45355#(<= 9 ULTIMATE.start_main_~k~5), 45356#(<= 10 ULTIMATE.start_main_~k~5), 45357#(<= 11 ULTIMATE.start_main_~k~5), 45358#(<= 12 ULTIMATE.start_main_~k~5), 45359#(<= 13 ULTIMATE.start_main_~k~5), 45360#(<= 14 ULTIMATE.start_main_~k~5), 45361#(<= 15 ULTIMATE.start_main_~k~5), 45362#(<= 16 ULTIMATE.start_main_~k~5), 45363#(<= 17 ULTIMATE.start_main_~k~5), 45364#(<= 18 ULTIMATE.start_main_~k~5), 45365#(<= 19 ULTIMATE.start_main_~k~5), 45366#(<= 20 ULTIMATE.start_main_~k~5), 45367#(<= 21 ULTIMATE.start_main_~k~5), 45368#(<= 22 ULTIMATE.start_main_~k~5), 45369#(<= 23 ULTIMATE.start_main_~k~5), 45370#(<= 24 ULTIMATE.start_main_~k~5), 45371#(<= 25 ULTIMATE.start_main_~k~5), 45372#(<= 26 ULTIMATE.start_main_~k~5), 45373#(<= 27 ULTIMATE.start_main_~k~5), 45374#(<= 28 ULTIMATE.start_main_~k~5), 45375#(<= 29 ULTIMATE.start_main_~k~5), 45376#(<= 30 ULTIMATE.start_main_~k~5), 45377#(<= 31 ULTIMATE.start_main_~k~5), 45378#(<= 32 ULTIMATE.start_main_~k~5), 45379#(<= 33 ULTIMATE.start_main_~k~5), 45380#(<= 34 ULTIMATE.start_main_~k~5), 45381#(<= 35 ULTIMATE.start_main_~k~5), 45382#(<= 36 ULTIMATE.start_main_~k~5), 45383#(<= 37 ULTIMATE.start_main_~k~5), 45384#(<= 38 ULTIMATE.start_main_~k~5), 45385#(<= 39 ULTIMATE.start_main_~k~5), 45386#(<= 40 ULTIMATE.start_main_~k~5), 45387#(<= 41 ULTIMATE.start_main_~k~5), 45388#(<= 42 ULTIMATE.start_main_~k~5), 45389#(<= 43 ULTIMATE.start_main_~k~5), 45390#(<= 44 ULTIMATE.start_main_~k~5), 45391#(<= 45 ULTIMATE.start_main_~k~5), 45392#(<= 46 ULTIMATE.start_main_~k~5), 45393#(<= 47 ULTIMATE.start_main_~k~5), 45394#(<= 48 ULTIMATE.start_main_~k~5), 45395#(<= 49 ULTIMATE.start_main_~k~5), 45396#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond)] [2018-07-23 13:41:20,608 INFO L134 CoverageAnalysis]: Checked inductivity of 3577 backedges. 1225 proven. 2352 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:20,609 INFO L450 AbstractCegarLoop]: Interpolant automaton has 53 states [2018-07-23 13:41:20,609 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2018-07-23 13:41:20,609 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1328, Invalid=1428, Unknown=0, NotChecked=0, Total=2756 [2018-07-23 13:41:20,609 INFO L87 Difference]: Start difference. First operand 151 states and 152 transitions. Second operand 53 states. [2018-07-23 13:41:20,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:20,749 INFO L93 Difference]: Finished difference Result 159 states and 160 transitions. [2018-07-23 13:41:20,749 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2018-07-23 13:41:20,749 INFO L78 Accepts]: Start accepts. Automaton has 53 states. Word has length 150 [2018-07-23 13:41:20,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:20,750 INFO L225 Difference]: With dead ends: 159 [2018-07-23 13:41:20,750 INFO L226 Difference]: Without dead ends: 157 [2018-07-23 13:41:20,751 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2450 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3978, Invalid=6528, Unknown=0, NotChecked=0, Total=10506 [2018-07-23 13:41:20,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2018-07-23 13:41:20,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 153. [2018-07-23 13:41:20,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2018-07-23 13:41:20,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 154 transitions. [2018-07-23 13:41:20,772 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 154 transitions. Word has length 150 [2018-07-23 13:41:20,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:20,772 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 154 transitions. [2018-07-23 13:41:20,772 INFO L472 AbstractCegarLoop]: Interpolant automaton has 53 states. [2018-07-23 13:41:20,773 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 154 transitions. [2018-07-23 13:41:20,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-07-23 13:41:20,773 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:20,773 INFO L357 BasicCegarLoop]: trace histogram [50, 49, 49, 1, 1, 1, 1] [2018-07-23 13:41:20,774 INFO L414 AbstractCegarLoop]: === Iteration 99 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:20,774 INFO L82 PathProgramCache]: Analyzing trace with hash -27138486, now seen corresponding path program 97 times [2018-07-23 13:41:20,774 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:20,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:21,164 INFO L134 CoverageAnalysis]: Checked inductivity of 3675 backedges. 2450 proven. 1225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:21,165 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:21,165 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [101] total 101 [2018-07-23 13:41:21,165 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:21,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:21,166 INFO L185 omatonBuilderFactory]: Interpolants [46121#true, 46122#false, 46123#(<= ULTIMATE.start_main_~i~5 0), 46124#(<= ULTIMATE.start_main_~i~5 1), 46125#(<= ULTIMATE.start_main_~i~5 2), 46126#(<= ULTIMATE.start_main_~i~5 3), 46127#(<= ULTIMATE.start_main_~i~5 4), 46128#(<= ULTIMATE.start_main_~i~5 5), 46129#(<= ULTIMATE.start_main_~i~5 6), 46130#(<= ULTIMATE.start_main_~i~5 7), 46131#(<= ULTIMATE.start_main_~i~5 8), 46132#(<= ULTIMATE.start_main_~i~5 9), 46133#(<= ULTIMATE.start_main_~i~5 10), 46134#(<= ULTIMATE.start_main_~i~5 11), 46135#(<= ULTIMATE.start_main_~i~5 12), 46136#(<= ULTIMATE.start_main_~i~5 13), 46137#(<= ULTIMATE.start_main_~i~5 14), 46138#(<= ULTIMATE.start_main_~i~5 15), 46139#(<= ULTIMATE.start_main_~i~5 16), 46140#(<= ULTIMATE.start_main_~i~5 17), 46141#(<= ULTIMATE.start_main_~i~5 18), 46142#(<= ULTIMATE.start_main_~i~5 19), 46143#(<= ULTIMATE.start_main_~i~5 20), 46144#(<= ULTIMATE.start_main_~i~5 21), 46145#(<= ULTIMATE.start_main_~i~5 22), 46146#(<= ULTIMATE.start_main_~i~5 23), 46147#(<= ULTIMATE.start_main_~i~5 24), 46148#(<= ULTIMATE.start_main_~i~5 25), 46149#(<= ULTIMATE.start_main_~i~5 26), 46150#(<= ULTIMATE.start_main_~i~5 27), 46151#(<= ULTIMATE.start_main_~i~5 28), 46152#(<= ULTIMATE.start_main_~i~5 29), 46153#(<= ULTIMATE.start_main_~i~5 30), 46154#(<= ULTIMATE.start_main_~i~5 31), 46155#(<= ULTIMATE.start_main_~i~5 32), 46156#(<= ULTIMATE.start_main_~i~5 33), 46157#(<= ULTIMATE.start_main_~i~5 34), 46158#(<= ULTIMATE.start_main_~i~5 35), 46159#(<= ULTIMATE.start_main_~i~5 36), 46160#(<= ULTIMATE.start_main_~i~5 37), 46161#(<= ULTIMATE.start_main_~i~5 38), 46162#(<= ULTIMATE.start_main_~i~5 39), 46163#(<= ULTIMATE.start_main_~i~5 40), 46164#(<= ULTIMATE.start_main_~i~5 41), 46165#(<= ULTIMATE.start_main_~i~5 42), 46166#(<= ULTIMATE.start_main_~i~5 43), 46167#(<= ULTIMATE.start_main_~i~5 44), 46168#(<= ULTIMATE.start_main_~i~5 45), 46169#(<= ULTIMATE.start_main_~i~5 46), 46170#(<= ULTIMATE.start_main_~i~5 47), 46171#(<= ULTIMATE.start_main_~i~5 48), 46172#(<= ULTIMATE.start_main_~i~5 49), 46173#(<= ULTIMATE.start_main_~j~5 49), 46174#(<= ULTIMATE.start_main_~j~5 48), 46175#(<= ULTIMATE.start_main_~j~5 47), 46176#(<= ULTIMATE.start_main_~j~5 46), 46177#(<= ULTIMATE.start_main_~j~5 45), 46178#(<= ULTIMATE.start_main_~j~5 44), 46179#(<= ULTIMATE.start_main_~j~5 43), 46180#(<= ULTIMATE.start_main_~j~5 42), 46181#(<= ULTIMATE.start_main_~j~5 41), 46182#(<= ULTIMATE.start_main_~j~5 40), 46183#(<= ULTIMATE.start_main_~j~5 39), 46184#(<= ULTIMATE.start_main_~j~5 38), 46185#(<= ULTIMATE.start_main_~j~5 37), 46186#(<= ULTIMATE.start_main_~j~5 36), 46187#(<= ULTIMATE.start_main_~j~5 35), 46188#(<= ULTIMATE.start_main_~j~5 34), 46189#(<= ULTIMATE.start_main_~j~5 33), 46190#(<= ULTIMATE.start_main_~j~5 32), 46191#(<= ULTIMATE.start_main_~j~5 31), 46192#(<= ULTIMATE.start_main_~j~5 30), 46193#(<= ULTIMATE.start_main_~j~5 29), 46194#(<= ULTIMATE.start_main_~j~5 28), 46195#(<= ULTIMATE.start_main_~j~5 27), 46196#(<= ULTIMATE.start_main_~j~5 26), 46197#(<= ULTIMATE.start_main_~j~5 25), 46198#(<= ULTIMATE.start_main_~j~5 24), 46199#(<= ULTIMATE.start_main_~j~5 23), 46200#(<= ULTIMATE.start_main_~j~5 22), 46201#(<= ULTIMATE.start_main_~j~5 21), 46202#(<= ULTIMATE.start_main_~j~5 20), 46203#(<= ULTIMATE.start_main_~j~5 19), 46204#(<= ULTIMATE.start_main_~j~5 18), 46205#(<= ULTIMATE.start_main_~j~5 17), 46206#(<= ULTIMATE.start_main_~j~5 16), 46207#(<= ULTIMATE.start_main_~j~5 15), 46208#(<= ULTIMATE.start_main_~j~5 14), 46209#(<= ULTIMATE.start_main_~j~5 13), 46210#(<= ULTIMATE.start_main_~j~5 12), 46211#(<= ULTIMATE.start_main_~j~5 11), 46212#(<= ULTIMATE.start_main_~j~5 10), 46213#(<= ULTIMATE.start_main_~j~5 9), 46214#(<= ULTIMATE.start_main_~j~5 8), 46215#(<= ULTIMATE.start_main_~j~5 7), 46216#(<= ULTIMATE.start_main_~j~5 6), 46217#(<= ULTIMATE.start_main_~j~5 5), 46218#(<= ULTIMATE.start_main_~j~5 4), 46219#(<= ULTIMATE.start_main_~j~5 3), 46220#(<= ULTIMATE.start_main_~j~5 2), 46221#(<= ULTIMATE.start_main_~j~5 1), 46222#(<= ULTIMATE.start_main_~j~5 0)] [2018-07-23 13:41:21,166 INFO L134 CoverageAnalysis]: Checked inductivity of 3675 backedges. 2450 proven. 1225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:21,167 INFO L450 AbstractCegarLoop]: Interpolant automaton has 102 states [2018-07-23 13:41:21,168 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2018-07-23 13:41:21,170 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2651, Invalid=7651, Unknown=0, NotChecked=0, Total=10302 [2018-07-23 13:41:21,170 INFO L87 Difference]: Start difference. First operand 153 states and 154 transitions. Second operand 102 states. [2018-07-23 13:41:21,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:21,819 INFO L93 Difference]: Finished difference Result 257 states and 259 transitions. [2018-07-23 13:41:21,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2018-07-23 13:41:21,819 INFO L78 Accepts]: Start accepts. Automaton has 102 states. Word has length 152 [2018-07-23 13:41:21,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:21,820 INFO L225 Difference]: With dead ends: 257 [2018-07-23 13:41:21,820 INFO L226 Difference]: Without dead ends: 154 [2018-07-23 13:41:21,821 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3626 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=5301, Invalid=17651, Unknown=0, NotChecked=0, Total=22952 [2018-07-23 13:41:21,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2018-07-23 13:41:21,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2018-07-23 13:41:21,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2018-07-23 13:41:21,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 155 transitions. [2018-07-23 13:41:21,837 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 155 transitions. Word has length 152 [2018-07-23 13:41:21,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:21,838 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 155 transitions. [2018-07-23 13:41:21,838 INFO L472 AbstractCegarLoop]: Interpolant automaton has 102 states. [2018-07-23 13:41:21,838 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 155 transitions. [2018-07-23 13:41:21,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2018-07-23 13:41:21,839 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:21,839 INFO L357 BasicCegarLoop]: trace histogram [50, 50, 49, 1, 1, 1, 1] [2018-07-23 13:41:21,839 INFO L414 AbstractCegarLoop]: === Iteration 100 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:21,839 INFO L82 PathProgramCache]: Analyzing trace with hash 810690243, now seen corresponding path program 98 times [2018-07-23 13:41:21,839 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:21,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:21,973 INFO L134 CoverageAnalysis]: Checked inductivity of 3725 backedges. 1275 proven. 2450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:21,973 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:21,973 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [53] total 53 [2018-07-23 13:41:21,974 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:21,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:21,974 INFO L185 omatonBuilderFactory]: Interpolants [47145#true, 47146#false, 47147#(<= 0 ULTIMATE.start_main_~k~5), 47148#(<= 1 ULTIMATE.start_main_~k~5), 47149#(<= 2 ULTIMATE.start_main_~k~5), 47150#(<= 3 ULTIMATE.start_main_~k~5), 47151#(<= 4 ULTIMATE.start_main_~k~5), 47152#(<= 5 ULTIMATE.start_main_~k~5), 47153#(<= 6 ULTIMATE.start_main_~k~5), 47154#(<= 7 ULTIMATE.start_main_~k~5), 47155#(<= 8 ULTIMATE.start_main_~k~5), 47156#(<= 9 ULTIMATE.start_main_~k~5), 47157#(<= 10 ULTIMATE.start_main_~k~5), 47158#(<= 11 ULTIMATE.start_main_~k~5), 47159#(<= 12 ULTIMATE.start_main_~k~5), 47160#(<= 13 ULTIMATE.start_main_~k~5), 47161#(<= 14 ULTIMATE.start_main_~k~5), 47162#(<= 15 ULTIMATE.start_main_~k~5), 47163#(<= 16 ULTIMATE.start_main_~k~5), 47164#(<= 17 ULTIMATE.start_main_~k~5), 47165#(<= 18 ULTIMATE.start_main_~k~5), 47166#(<= 19 ULTIMATE.start_main_~k~5), 47167#(<= 20 ULTIMATE.start_main_~k~5), 47168#(<= 21 ULTIMATE.start_main_~k~5), 47169#(<= 22 ULTIMATE.start_main_~k~5), 47170#(<= 23 ULTIMATE.start_main_~k~5), 47171#(<= 24 ULTIMATE.start_main_~k~5), 47172#(<= 25 ULTIMATE.start_main_~k~5), 47173#(<= 26 ULTIMATE.start_main_~k~5), 47174#(<= 27 ULTIMATE.start_main_~k~5), 47175#(<= 28 ULTIMATE.start_main_~k~5), 47176#(<= 29 ULTIMATE.start_main_~k~5), 47177#(<= 30 ULTIMATE.start_main_~k~5), 47178#(<= 31 ULTIMATE.start_main_~k~5), 47179#(<= 32 ULTIMATE.start_main_~k~5), 47180#(<= 33 ULTIMATE.start_main_~k~5), 47181#(<= 34 ULTIMATE.start_main_~k~5), 47182#(<= 35 ULTIMATE.start_main_~k~5), 47183#(<= 36 ULTIMATE.start_main_~k~5), 47184#(<= 37 ULTIMATE.start_main_~k~5), 47185#(<= 38 ULTIMATE.start_main_~k~5), 47186#(<= 39 ULTIMATE.start_main_~k~5), 47187#(<= 40 ULTIMATE.start_main_~k~5), 47188#(<= 41 ULTIMATE.start_main_~k~5), 47189#(<= 42 ULTIMATE.start_main_~k~5), 47190#(<= 43 ULTIMATE.start_main_~k~5), 47191#(<= 44 ULTIMATE.start_main_~k~5), 47192#(<= 45 ULTIMATE.start_main_~k~5), 47193#(<= 46 ULTIMATE.start_main_~k~5), 47194#(<= 47 ULTIMATE.start_main_~k~5), 47195#(<= 48 ULTIMATE.start_main_~k~5), 47196#(<= 49 ULTIMATE.start_main_~k~5), 47197#(<= 50 ULTIMATE.start_main_~k~5), 47198#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond)] [2018-07-23 13:41:21,974 INFO L134 CoverageAnalysis]: Checked inductivity of 3725 backedges. 1275 proven. 2450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:21,975 INFO L450 AbstractCegarLoop]: Interpolant automaton has 54 states [2018-07-23 13:41:21,975 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2018-07-23 13:41:21,975 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1380, Invalid=1482, Unknown=0, NotChecked=0, Total=2862 [2018-07-23 13:41:21,975 INFO L87 Difference]: Start difference. First operand 154 states and 155 transitions. Second operand 54 states. [2018-07-23 13:41:22,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:22,116 INFO L93 Difference]: Finished difference Result 162 states and 163 transitions. [2018-07-23 13:41:22,116 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2018-07-23 13:41:22,116 INFO L78 Accepts]: Start accepts. Automaton has 54 states. Word has length 153 [2018-07-23 13:41:22,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:22,117 INFO L225 Difference]: With dead ends: 162 [2018-07-23 13:41:22,117 INFO L226 Difference]: Without dead ends: 160 [2018-07-23 13:41:22,119 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2550 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=4134, Invalid=6786, Unknown=0, NotChecked=0, Total=10920 [2018-07-23 13:41:22,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2018-07-23 13:41:22,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 156. [2018-07-23 13:41:22,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2018-07-23 13:41:22,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 157 transitions. [2018-07-23 13:41:22,140 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 157 transitions. Word has length 153 [2018-07-23 13:41:22,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:22,140 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 157 transitions. [2018-07-23 13:41:22,140 INFO L472 AbstractCegarLoop]: Interpolant automaton has 54 states. [2018-07-23 13:41:22,141 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 157 transitions. [2018-07-23 13:41:22,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-07-23 13:41:22,141 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:22,142 INFO L357 BasicCegarLoop]: trace histogram [51, 50, 50, 1, 1, 1, 1] [2018-07-23 13:41:22,142 INFO L414 AbstractCegarLoop]: === Iteration 101 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:22,142 INFO L82 PathProgramCache]: Analyzing trace with hash 1684308971, now seen corresponding path program 99 times [2018-07-23 13:41:22,142 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:22,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:22,419 INFO L134 CoverageAnalysis]: Checked inductivity of 3825 backedges. 2550 proven. 1275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:22,419 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:22,419 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [103] total 103 [2018-07-23 13:41:22,419 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:22,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:22,420 INFO L185 omatonBuilderFactory]: Interpolants [47937#true, 47938#false, 47939#(<= ULTIMATE.start_main_~i~5 0), 47940#(<= ULTIMATE.start_main_~i~5 1), 47941#(<= ULTIMATE.start_main_~i~5 2), 47942#(<= ULTIMATE.start_main_~i~5 3), 47943#(<= ULTIMATE.start_main_~i~5 4), 47944#(<= ULTIMATE.start_main_~i~5 5), 47945#(<= ULTIMATE.start_main_~i~5 6), 47946#(<= ULTIMATE.start_main_~i~5 7), 47947#(<= ULTIMATE.start_main_~i~5 8), 47948#(<= ULTIMATE.start_main_~i~5 9), 47949#(<= ULTIMATE.start_main_~i~5 10), 47950#(<= ULTIMATE.start_main_~i~5 11), 47951#(<= ULTIMATE.start_main_~i~5 12), 47952#(<= ULTIMATE.start_main_~i~5 13), 47953#(<= ULTIMATE.start_main_~i~5 14), 47954#(<= ULTIMATE.start_main_~i~5 15), 47955#(<= ULTIMATE.start_main_~i~5 16), 47956#(<= ULTIMATE.start_main_~i~5 17), 47957#(<= ULTIMATE.start_main_~i~5 18), 47958#(<= ULTIMATE.start_main_~i~5 19), 47959#(<= ULTIMATE.start_main_~i~5 20), 47960#(<= ULTIMATE.start_main_~i~5 21), 47961#(<= ULTIMATE.start_main_~i~5 22), 47962#(<= ULTIMATE.start_main_~i~5 23), 47963#(<= ULTIMATE.start_main_~i~5 24), 47964#(<= ULTIMATE.start_main_~i~5 25), 47965#(<= ULTIMATE.start_main_~i~5 26), 47966#(<= ULTIMATE.start_main_~i~5 27), 47967#(<= ULTIMATE.start_main_~i~5 28), 47968#(<= ULTIMATE.start_main_~i~5 29), 47969#(<= ULTIMATE.start_main_~i~5 30), 47970#(<= ULTIMATE.start_main_~i~5 31), 47971#(<= ULTIMATE.start_main_~i~5 32), 47972#(<= ULTIMATE.start_main_~i~5 33), 47973#(<= ULTIMATE.start_main_~i~5 34), 47974#(<= ULTIMATE.start_main_~i~5 35), 47975#(<= ULTIMATE.start_main_~i~5 36), 47976#(<= ULTIMATE.start_main_~i~5 37), 47977#(<= ULTIMATE.start_main_~i~5 38), 47978#(<= ULTIMATE.start_main_~i~5 39), 47979#(<= ULTIMATE.start_main_~i~5 40), 47980#(<= ULTIMATE.start_main_~i~5 41), 47981#(<= ULTIMATE.start_main_~i~5 42), 47982#(<= ULTIMATE.start_main_~i~5 43), 47983#(<= ULTIMATE.start_main_~i~5 44), 47984#(<= ULTIMATE.start_main_~i~5 45), 47985#(<= ULTIMATE.start_main_~i~5 46), 47986#(<= ULTIMATE.start_main_~i~5 47), 47987#(<= ULTIMATE.start_main_~i~5 48), 47988#(<= ULTIMATE.start_main_~i~5 49), 47989#(<= ULTIMATE.start_main_~i~5 50), 47990#(<= ULTIMATE.start_main_~j~5 50), 47991#(<= ULTIMATE.start_main_~j~5 49), 47992#(<= ULTIMATE.start_main_~j~5 48), 47993#(<= ULTIMATE.start_main_~j~5 47), 47994#(<= ULTIMATE.start_main_~j~5 46), 47995#(<= ULTIMATE.start_main_~j~5 45), 47996#(<= ULTIMATE.start_main_~j~5 44), 47997#(<= ULTIMATE.start_main_~j~5 43), 47998#(<= ULTIMATE.start_main_~j~5 42), 47999#(<= ULTIMATE.start_main_~j~5 41), 48000#(<= ULTIMATE.start_main_~j~5 40), 48001#(<= ULTIMATE.start_main_~j~5 39), 48002#(<= ULTIMATE.start_main_~j~5 38), 48003#(<= ULTIMATE.start_main_~j~5 37), 48004#(<= ULTIMATE.start_main_~j~5 36), 48005#(<= ULTIMATE.start_main_~j~5 35), 48006#(<= ULTIMATE.start_main_~j~5 34), 48007#(<= ULTIMATE.start_main_~j~5 33), 48008#(<= ULTIMATE.start_main_~j~5 32), 48009#(<= ULTIMATE.start_main_~j~5 31), 48010#(<= ULTIMATE.start_main_~j~5 30), 48011#(<= ULTIMATE.start_main_~j~5 29), 48012#(<= ULTIMATE.start_main_~j~5 28), 48013#(<= ULTIMATE.start_main_~j~5 27), 48014#(<= ULTIMATE.start_main_~j~5 26), 48015#(<= ULTIMATE.start_main_~j~5 25), 48016#(<= ULTIMATE.start_main_~j~5 24), 48017#(<= ULTIMATE.start_main_~j~5 23), 48018#(<= ULTIMATE.start_main_~j~5 22), 48019#(<= ULTIMATE.start_main_~j~5 21), 48020#(<= ULTIMATE.start_main_~j~5 20), 48021#(<= ULTIMATE.start_main_~j~5 19), 48022#(<= ULTIMATE.start_main_~j~5 18), 48023#(<= ULTIMATE.start_main_~j~5 17), 48024#(<= ULTIMATE.start_main_~j~5 16), 48025#(<= ULTIMATE.start_main_~j~5 15), 48026#(<= ULTIMATE.start_main_~j~5 14), 48027#(<= ULTIMATE.start_main_~j~5 13), 48028#(<= ULTIMATE.start_main_~j~5 12), 48029#(<= ULTIMATE.start_main_~j~5 11), 48030#(<= ULTIMATE.start_main_~j~5 10), 48031#(<= ULTIMATE.start_main_~j~5 9), 48032#(<= ULTIMATE.start_main_~j~5 8), 48033#(<= ULTIMATE.start_main_~j~5 7), 48034#(<= ULTIMATE.start_main_~j~5 6), 48035#(<= ULTIMATE.start_main_~j~5 5), 48036#(<= ULTIMATE.start_main_~j~5 4), 48037#(<= ULTIMATE.start_main_~j~5 3), 48038#(<= ULTIMATE.start_main_~j~5 2), 48039#(<= ULTIMATE.start_main_~j~5 1), 48040#(<= ULTIMATE.start_main_~j~5 0)] [2018-07-23 13:41:22,420 INFO L134 CoverageAnalysis]: Checked inductivity of 3825 backedges. 2550 proven. 1275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:22,420 INFO L450 AbstractCegarLoop]: Interpolant automaton has 104 states [2018-07-23 13:41:22,421 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 104 interpolants. [2018-07-23 13:41:22,421 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2755, Invalid=7957, Unknown=0, NotChecked=0, Total=10712 [2018-07-23 13:41:22,421 INFO L87 Difference]: Start difference. First operand 156 states and 157 transitions. Second operand 104 states. [2018-07-23 13:41:23,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:23,005 INFO L93 Difference]: Finished difference Result 262 states and 264 transitions. [2018-07-23 13:41:23,005 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2018-07-23 13:41:23,005 INFO L78 Accepts]: Start accepts. Automaton has 104 states. Word has length 155 [2018-07-23 13:41:23,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:23,006 INFO L225 Difference]: With dead ends: 262 [2018-07-23 13:41:23,006 INFO L226 Difference]: Without dead ends: 157 [2018-07-23 13:41:23,007 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 153 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3775 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=5509, Invalid=18361, Unknown=0, NotChecked=0, Total=23870 [2018-07-23 13:41:23,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2018-07-23 13:41:23,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2018-07-23 13:41:23,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2018-07-23 13:41:23,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 158 transitions. [2018-07-23 13:41:23,025 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 158 transitions. Word has length 155 [2018-07-23 13:41:23,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:23,026 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 158 transitions. [2018-07-23 13:41:23,026 INFO L472 AbstractCegarLoop]: Interpolant automaton has 104 states. [2018-07-23 13:41:23,026 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 158 transitions. [2018-07-23 13:41:23,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2018-07-23 13:41:23,027 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:23,027 INFO L357 BasicCegarLoop]: trace histogram [51, 51, 50, 1, 1, 1, 1] [2018-07-23 13:41:23,027 INFO L414 AbstractCegarLoop]: === Iteration 102 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:23,027 INFO L82 PathProgramCache]: Analyzing trace with hash -909949742, now seen corresponding path program 100 times [2018-07-23 13:41:23,027 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:23,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:23,182 INFO L134 CoverageAnalysis]: Checked inductivity of 3876 backedges. 1326 proven. 2550 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:23,182 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:23,183 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [54] total 54 [2018-07-23 13:41:23,183 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:23,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:23,183 INFO L185 omatonBuilderFactory]: Interpolants [49024#(<= 41 ULTIMATE.start_main_~k~5), 49025#(<= 42 ULTIMATE.start_main_~k~5), 49026#(<= 43 ULTIMATE.start_main_~k~5), 49027#(<= 44 ULTIMATE.start_main_~k~5), 49028#(<= 45 ULTIMATE.start_main_~k~5), 49029#(<= 46 ULTIMATE.start_main_~k~5), 49030#(<= 47 ULTIMATE.start_main_~k~5), 49031#(<= 48 ULTIMATE.start_main_~k~5), 49032#(<= 49 ULTIMATE.start_main_~k~5), 49033#(<= 50 ULTIMATE.start_main_~k~5), 49034#(<= 51 ULTIMATE.start_main_~k~5), 49035#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 48981#true, 48982#false, 48983#(<= 0 ULTIMATE.start_main_~k~5), 48984#(<= 1 ULTIMATE.start_main_~k~5), 48985#(<= 2 ULTIMATE.start_main_~k~5), 48986#(<= 3 ULTIMATE.start_main_~k~5), 48987#(<= 4 ULTIMATE.start_main_~k~5), 48988#(<= 5 ULTIMATE.start_main_~k~5), 48989#(<= 6 ULTIMATE.start_main_~k~5), 48990#(<= 7 ULTIMATE.start_main_~k~5), 48991#(<= 8 ULTIMATE.start_main_~k~5), 48992#(<= 9 ULTIMATE.start_main_~k~5), 48993#(<= 10 ULTIMATE.start_main_~k~5), 48994#(<= 11 ULTIMATE.start_main_~k~5), 48995#(<= 12 ULTIMATE.start_main_~k~5), 48996#(<= 13 ULTIMATE.start_main_~k~5), 48997#(<= 14 ULTIMATE.start_main_~k~5), 48998#(<= 15 ULTIMATE.start_main_~k~5), 48999#(<= 16 ULTIMATE.start_main_~k~5), 49000#(<= 17 ULTIMATE.start_main_~k~5), 49001#(<= 18 ULTIMATE.start_main_~k~5), 49002#(<= 19 ULTIMATE.start_main_~k~5), 49003#(<= 20 ULTIMATE.start_main_~k~5), 49004#(<= 21 ULTIMATE.start_main_~k~5), 49005#(<= 22 ULTIMATE.start_main_~k~5), 49006#(<= 23 ULTIMATE.start_main_~k~5), 49007#(<= 24 ULTIMATE.start_main_~k~5), 49008#(<= 25 ULTIMATE.start_main_~k~5), 49009#(<= 26 ULTIMATE.start_main_~k~5), 49010#(<= 27 ULTIMATE.start_main_~k~5), 49011#(<= 28 ULTIMATE.start_main_~k~5), 49012#(<= 29 ULTIMATE.start_main_~k~5), 49013#(<= 30 ULTIMATE.start_main_~k~5), 49014#(<= 31 ULTIMATE.start_main_~k~5), 49015#(<= 32 ULTIMATE.start_main_~k~5), 49016#(<= 33 ULTIMATE.start_main_~k~5), 49017#(<= 34 ULTIMATE.start_main_~k~5), 49018#(<= 35 ULTIMATE.start_main_~k~5), 49019#(<= 36 ULTIMATE.start_main_~k~5), 49020#(<= 37 ULTIMATE.start_main_~k~5), 49021#(<= 38 ULTIMATE.start_main_~k~5), 49022#(<= 39 ULTIMATE.start_main_~k~5), 49023#(<= 40 ULTIMATE.start_main_~k~5)] [2018-07-23 13:41:23,184 INFO L134 CoverageAnalysis]: Checked inductivity of 3876 backedges. 1326 proven. 2550 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:23,184 INFO L450 AbstractCegarLoop]: Interpolant automaton has 55 states [2018-07-23 13:41:23,184 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2018-07-23 13:41:23,184 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1433, Invalid=1537, Unknown=0, NotChecked=0, Total=2970 [2018-07-23 13:41:23,185 INFO L87 Difference]: Start difference. First operand 157 states and 158 transitions. Second operand 55 states. [2018-07-23 13:41:23,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:23,364 INFO L93 Difference]: Finished difference Result 165 states and 166 transitions. [2018-07-23 13:41:23,364 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2018-07-23 13:41:23,364 INFO L78 Accepts]: Start accepts. Automaton has 55 states. Word has length 156 [2018-07-23 13:41:23,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:23,366 INFO L225 Difference]: With dead ends: 165 [2018-07-23 13:41:23,366 INFO L226 Difference]: Without dead ends: 163 [2018-07-23 13:41:23,367 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2652 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=4293, Invalid=7049, Unknown=0, NotChecked=0, Total=11342 [2018-07-23 13:41:23,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2018-07-23 13:41:23,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 159. [2018-07-23 13:41:23,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2018-07-23 13:41:23,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 160 transitions. [2018-07-23 13:41:23,388 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 160 transitions. Word has length 156 [2018-07-23 13:41:23,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:23,388 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 160 transitions. [2018-07-23 13:41:23,388 INFO L472 AbstractCegarLoop]: Interpolant automaton has 55 states. [2018-07-23 13:41:23,388 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 160 transitions. [2018-07-23 13:41:23,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2018-07-23 13:41:23,389 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:23,389 INFO L357 BasicCegarLoop]: trace histogram [52, 51, 51, 1, 1, 1, 1] [2018-07-23 13:41:23,389 INFO L414 AbstractCegarLoop]: === Iteration 103 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:23,390 INFO L82 PathProgramCache]: Analyzing trace with hash 1711692346, now seen corresponding path program 101 times [2018-07-23 13:41:23,390 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:23,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:23,640 INFO L134 CoverageAnalysis]: Checked inductivity of 3978 backedges. 2652 proven. 1326 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:23,640 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:23,640 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [105] total 105 [2018-07-23 13:41:23,640 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:23,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:23,641 INFO L185 omatonBuilderFactory]: Interpolants [49788#true, 49789#false, 49790#(<= ULTIMATE.start_main_~i~5 0), 49791#(<= ULTIMATE.start_main_~i~5 1), 49792#(<= ULTIMATE.start_main_~i~5 2), 49793#(<= ULTIMATE.start_main_~i~5 3), 49794#(<= ULTIMATE.start_main_~i~5 4), 49795#(<= ULTIMATE.start_main_~i~5 5), 49796#(<= ULTIMATE.start_main_~i~5 6), 49797#(<= ULTIMATE.start_main_~i~5 7), 49798#(<= ULTIMATE.start_main_~i~5 8), 49799#(<= ULTIMATE.start_main_~i~5 9), 49800#(<= ULTIMATE.start_main_~i~5 10), 49801#(<= ULTIMATE.start_main_~i~5 11), 49802#(<= ULTIMATE.start_main_~i~5 12), 49803#(<= ULTIMATE.start_main_~i~5 13), 49804#(<= ULTIMATE.start_main_~i~5 14), 49805#(<= ULTIMATE.start_main_~i~5 15), 49806#(<= ULTIMATE.start_main_~i~5 16), 49807#(<= ULTIMATE.start_main_~i~5 17), 49808#(<= ULTIMATE.start_main_~i~5 18), 49809#(<= ULTIMATE.start_main_~i~5 19), 49810#(<= ULTIMATE.start_main_~i~5 20), 49811#(<= ULTIMATE.start_main_~i~5 21), 49812#(<= ULTIMATE.start_main_~i~5 22), 49813#(<= ULTIMATE.start_main_~i~5 23), 49814#(<= ULTIMATE.start_main_~i~5 24), 49815#(<= ULTIMATE.start_main_~i~5 25), 49816#(<= ULTIMATE.start_main_~i~5 26), 49817#(<= ULTIMATE.start_main_~i~5 27), 49818#(<= ULTIMATE.start_main_~i~5 28), 49819#(<= ULTIMATE.start_main_~i~5 29), 49820#(<= ULTIMATE.start_main_~i~5 30), 49821#(<= ULTIMATE.start_main_~i~5 31), 49822#(<= ULTIMATE.start_main_~i~5 32), 49823#(<= ULTIMATE.start_main_~i~5 33), 49824#(<= ULTIMATE.start_main_~i~5 34), 49825#(<= ULTIMATE.start_main_~i~5 35), 49826#(<= ULTIMATE.start_main_~i~5 36), 49827#(<= ULTIMATE.start_main_~i~5 37), 49828#(<= ULTIMATE.start_main_~i~5 38), 49829#(<= ULTIMATE.start_main_~i~5 39), 49830#(<= ULTIMATE.start_main_~i~5 40), 49831#(<= ULTIMATE.start_main_~i~5 41), 49832#(<= ULTIMATE.start_main_~i~5 42), 49833#(<= ULTIMATE.start_main_~i~5 43), 49834#(<= ULTIMATE.start_main_~i~5 44), 49835#(<= ULTIMATE.start_main_~i~5 45), 49836#(<= ULTIMATE.start_main_~i~5 46), 49837#(<= ULTIMATE.start_main_~i~5 47), 49838#(<= ULTIMATE.start_main_~i~5 48), 49839#(<= ULTIMATE.start_main_~i~5 49), 49840#(<= ULTIMATE.start_main_~i~5 50), 49841#(<= ULTIMATE.start_main_~i~5 51), 49842#(<= ULTIMATE.start_main_~j~5 51), 49843#(<= ULTIMATE.start_main_~j~5 50), 49844#(<= ULTIMATE.start_main_~j~5 49), 49845#(<= ULTIMATE.start_main_~j~5 48), 49846#(<= ULTIMATE.start_main_~j~5 47), 49847#(<= ULTIMATE.start_main_~j~5 46), 49848#(<= ULTIMATE.start_main_~j~5 45), 49849#(<= ULTIMATE.start_main_~j~5 44), 49850#(<= ULTIMATE.start_main_~j~5 43), 49851#(<= ULTIMATE.start_main_~j~5 42), 49852#(<= ULTIMATE.start_main_~j~5 41), 49853#(<= ULTIMATE.start_main_~j~5 40), 49854#(<= ULTIMATE.start_main_~j~5 39), 49855#(<= ULTIMATE.start_main_~j~5 38), 49856#(<= ULTIMATE.start_main_~j~5 37), 49857#(<= ULTIMATE.start_main_~j~5 36), 49858#(<= ULTIMATE.start_main_~j~5 35), 49859#(<= ULTIMATE.start_main_~j~5 34), 49860#(<= ULTIMATE.start_main_~j~5 33), 49861#(<= ULTIMATE.start_main_~j~5 32), 49862#(<= ULTIMATE.start_main_~j~5 31), 49863#(<= ULTIMATE.start_main_~j~5 30), 49864#(<= ULTIMATE.start_main_~j~5 29), 49865#(<= ULTIMATE.start_main_~j~5 28), 49866#(<= ULTIMATE.start_main_~j~5 27), 49867#(<= ULTIMATE.start_main_~j~5 26), 49868#(<= ULTIMATE.start_main_~j~5 25), 49869#(<= ULTIMATE.start_main_~j~5 24), 49870#(<= ULTIMATE.start_main_~j~5 23), 49871#(<= ULTIMATE.start_main_~j~5 22), 49872#(<= ULTIMATE.start_main_~j~5 21), 49873#(<= ULTIMATE.start_main_~j~5 20), 49874#(<= ULTIMATE.start_main_~j~5 19), 49875#(<= ULTIMATE.start_main_~j~5 18), 49876#(<= ULTIMATE.start_main_~j~5 17), 49877#(<= ULTIMATE.start_main_~j~5 16), 49878#(<= ULTIMATE.start_main_~j~5 15), 49879#(<= ULTIMATE.start_main_~j~5 14), 49880#(<= ULTIMATE.start_main_~j~5 13), 49881#(<= ULTIMATE.start_main_~j~5 12), 49882#(<= ULTIMATE.start_main_~j~5 11), 49883#(<= ULTIMATE.start_main_~j~5 10), 49884#(<= ULTIMATE.start_main_~j~5 9), 49885#(<= ULTIMATE.start_main_~j~5 8), 49886#(<= ULTIMATE.start_main_~j~5 7), 49887#(<= ULTIMATE.start_main_~j~5 6), 49888#(<= ULTIMATE.start_main_~j~5 5), 49889#(<= ULTIMATE.start_main_~j~5 4), 49890#(<= ULTIMATE.start_main_~j~5 3), 49891#(<= ULTIMATE.start_main_~j~5 2), 49892#(<= ULTIMATE.start_main_~j~5 1), 49893#(<= ULTIMATE.start_main_~j~5 0)] [2018-07-23 13:41:23,641 INFO L134 CoverageAnalysis]: Checked inductivity of 3978 backedges. 2652 proven. 1326 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:23,642 INFO L450 AbstractCegarLoop]: Interpolant automaton has 106 states [2018-07-23 13:41:23,642 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 106 interpolants. [2018-07-23 13:41:23,643 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2861, Invalid=8269, Unknown=0, NotChecked=0, Total=11130 [2018-07-23 13:41:23,643 INFO L87 Difference]: Start difference. First operand 159 states and 160 transitions. Second operand 106 states. [2018-07-23 13:41:24,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:24,280 INFO L93 Difference]: Finished difference Result 267 states and 269 transitions. [2018-07-23 13:41:24,280 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2018-07-23 13:41:24,280 INFO L78 Accepts]: Start accepts. Automaton has 106 states. Word has length 158 [2018-07-23 13:41:24,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:24,281 INFO L225 Difference]: With dead ends: 267 [2018-07-23 13:41:24,281 INFO L226 Difference]: Without dead ends: 160 [2018-07-23 13:41:24,282 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3927 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=5721, Invalid=19085, Unknown=0, NotChecked=0, Total=24806 [2018-07-23 13:41:24,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2018-07-23 13:41:24,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2018-07-23 13:41:24,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2018-07-23 13:41:24,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 161 transitions. [2018-07-23 13:41:24,300 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 161 transitions. Word has length 158 [2018-07-23 13:41:24,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:24,301 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 161 transitions. [2018-07-23 13:41:24,301 INFO L472 AbstractCegarLoop]: Interpolant automaton has 106 states. [2018-07-23 13:41:24,301 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 161 transitions. [2018-07-23 13:41:24,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2018-07-23 13:41:24,301 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:24,301 INFO L357 BasicCegarLoop]: trace histogram [52, 52, 51, 1, 1, 1, 1] [2018-07-23 13:41:24,301 INFO L414 AbstractCegarLoop]: === Iteration 104 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:24,302 INFO L82 PathProgramCache]: Analyzing trace with hash -208102413, now seen corresponding path program 102 times [2018-07-23 13:41:24,302 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:24,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:24,527 INFO L134 CoverageAnalysis]: Checked inductivity of 4030 backedges. 1378 proven. 2652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:24,528 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:24,528 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [55] total 55 [2018-07-23 13:41:24,528 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:24,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:24,528 INFO L185 omatonBuilderFactory]: Interpolants [50852#true, 50853#false, 50854#(<= 0 ULTIMATE.start_main_~k~5), 50855#(<= 1 ULTIMATE.start_main_~k~5), 50856#(<= 2 ULTIMATE.start_main_~k~5), 50857#(<= 3 ULTIMATE.start_main_~k~5), 50858#(<= 4 ULTIMATE.start_main_~k~5), 50859#(<= 5 ULTIMATE.start_main_~k~5), 50860#(<= 6 ULTIMATE.start_main_~k~5), 50861#(<= 7 ULTIMATE.start_main_~k~5), 50862#(<= 8 ULTIMATE.start_main_~k~5), 50863#(<= 9 ULTIMATE.start_main_~k~5), 50864#(<= 10 ULTIMATE.start_main_~k~5), 50865#(<= 11 ULTIMATE.start_main_~k~5), 50866#(<= 12 ULTIMATE.start_main_~k~5), 50867#(<= 13 ULTIMATE.start_main_~k~5), 50868#(<= 14 ULTIMATE.start_main_~k~5), 50869#(<= 15 ULTIMATE.start_main_~k~5), 50870#(<= 16 ULTIMATE.start_main_~k~5), 50871#(<= 17 ULTIMATE.start_main_~k~5), 50872#(<= 18 ULTIMATE.start_main_~k~5), 50873#(<= 19 ULTIMATE.start_main_~k~5), 50874#(<= 20 ULTIMATE.start_main_~k~5), 50875#(<= 21 ULTIMATE.start_main_~k~5), 50876#(<= 22 ULTIMATE.start_main_~k~5), 50877#(<= 23 ULTIMATE.start_main_~k~5), 50878#(<= 24 ULTIMATE.start_main_~k~5), 50879#(<= 25 ULTIMATE.start_main_~k~5), 50880#(<= 26 ULTIMATE.start_main_~k~5), 50881#(<= 27 ULTIMATE.start_main_~k~5), 50882#(<= 28 ULTIMATE.start_main_~k~5), 50883#(<= 29 ULTIMATE.start_main_~k~5), 50884#(<= 30 ULTIMATE.start_main_~k~5), 50885#(<= 31 ULTIMATE.start_main_~k~5), 50886#(<= 32 ULTIMATE.start_main_~k~5), 50887#(<= 33 ULTIMATE.start_main_~k~5), 50888#(<= 34 ULTIMATE.start_main_~k~5), 50889#(<= 35 ULTIMATE.start_main_~k~5), 50890#(<= 36 ULTIMATE.start_main_~k~5), 50891#(<= 37 ULTIMATE.start_main_~k~5), 50892#(<= 38 ULTIMATE.start_main_~k~5), 50893#(<= 39 ULTIMATE.start_main_~k~5), 50894#(<= 40 ULTIMATE.start_main_~k~5), 50895#(<= 41 ULTIMATE.start_main_~k~5), 50896#(<= 42 ULTIMATE.start_main_~k~5), 50897#(<= 43 ULTIMATE.start_main_~k~5), 50898#(<= 44 ULTIMATE.start_main_~k~5), 50899#(<= 45 ULTIMATE.start_main_~k~5), 50900#(<= 46 ULTIMATE.start_main_~k~5), 50901#(<= 47 ULTIMATE.start_main_~k~5), 50902#(<= 48 ULTIMATE.start_main_~k~5), 50903#(<= 49 ULTIMATE.start_main_~k~5), 50904#(<= 50 ULTIMATE.start_main_~k~5), 50905#(<= 51 ULTIMATE.start_main_~k~5), 50906#(<= 52 ULTIMATE.start_main_~k~5), 50907#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond)] [2018-07-23 13:41:24,529 INFO L134 CoverageAnalysis]: Checked inductivity of 4030 backedges. 1378 proven. 2652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:24,529 INFO L450 AbstractCegarLoop]: Interpolant automaton has 56 states [2018-07-23 13:41:24,530 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2018-07-23 13:41:24,530 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1487, Invalid=1593, Unknown=0, NotChecked=0, Total=3080 [2018-07-23 13:41:24,530 INFO L87 Difference]: Start difference. First operand 160 states and 161 transitions. Second operand 56 states. [2018-07-23 13:41:24,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:24,704 INFO L93 Difference]: Finished difference Result 168 states and 169 transitions. [2018-07-23 13:41:24,704 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2018-07-23 13:41:24,705 INFO L78 Accepts]: Start accepts. Automaton has 56 states. Word has length 159 [2018-07-23 13:41:24,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:24,705 INFO L225 Difference]: With dead ends: 168 [2018-07-23 13:41:24,705 INFO L226 Difference]: Without dead ends: 166 [2018-07-23 13:41:24,743 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2756 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=4455, Invalid=7317, Unknown=0, NotChecked=0, Total=11772 [2018-07-23 13:41:24,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2018-07-23 13:41:24,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 162. [2018-07-23 13:41:24,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2018-07-23 13:41:24,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 163 transitions. [2018-07-23 13:41:24,768 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 163 transitions. Word has length 159 [2018-07-23 13:41:24,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:24,769 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 163 transitions. [2018-07-23 13:41:24,769 INFO L472 AbstractCegarLoop]: Interpolant automaton has 56 states. [2018-07-23 13:41:24,769 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 163 transitions. [2018-07-23 13:41:24,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2018-07-23 13:41:24,769 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:24,770 INFO L357 BasicCegarLoop]: trace histogram [53, 52, 52, 1, 1, 1, 1] [2018-07-23 13:41:24,770 INFO L414 AbstractCegarLoop]: === Iteration 105 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:24,770 INFO L82 PathProgramCache]: Analyzing trace with hash 1877110043, now seen corresponding path program 103 times [2018-07-23 13:41:24,770 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:24,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:25,001 INFO L134 CoverageAnalysis]: Checked inductivity of 4134 backedges. 2756 proven. 1378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:25,001 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:25,001 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [107] total 107 [2018-07-23 13:41:25,001 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:25,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:25,002 INFO L185 omatonBuilderFactory]: Interpolants [51712#(<= ULTIMATE.start_main_~i~5 36), 51713#(<= ULTIMATE.start_main_~i~5 37), 51714#(<= ULTIMATE.start_main_~i~5 38), 51715#(<= ULTIMATE.start_main_~i~5 39), 51716#(<= ULTIMATE.start_main_~i~5 40), 51717#(<= ULTIMATE.start_main_~i~5 41), 51718#(<= ULTIMATE.start_main_~i~5 42), 51719#(<= ULTIMATE.start_main_~i~5 43), 51720#(<= ULTIMATE.start_main_~i~5 44), 51721#(<= ULTIMATE.start_main_~i~5 45), 51722#(<= ULTIMATE.start_main_~i~5 46), 51723#(<= ULTIMATE.start_main_~i~5 47), 51724#(<= ULTIMATE.start_main_~i~5 48), 51725#(<= ULTIMATE.start_main_~i~5 49), 51726#(<= ULTIMATE.start_main_~i~5 50), 51727#(<= ULTIMATE.start_main_~i~5 51), 51728#(<= ULTIMATE.start_main_~i~5 52), 51729#(<= ULTIMATE.start_main_~j~5 52), 51730#(<= ULTIMATE.start_main_~j~5 51), 51731#(<= ULTIMATE.start_main_~j~5 50), 51732#(<= ULTIMATE.start_main_~j~5 49), 51733#(<= ULTIMATE.start_main_~j~5 48), 51734#(<= ULTIMATE.start_main_~j~5 47), 51735#(<= ULTIMATE.start_main_~j~5 46), 51736#(<= ULTIMATE.start_main_~j~5 45), 51737#(<= ULTIMATE.start_main_~j~5 44), 51738#(<= ULTIMATE.start_main_~j~5 43), 51739#(<= ULTIMATE.start_main_~j~5 42), 51740#(<= ULTIMATE.start_main_~j~5 41), 51741#(<= ULTIMATE.start_main_~j~5 40), 51742#(<= ULTIMATE.start_main_~j~5 39), 51743#(<= ULTIMATE.start_main_~j~5 38), 51744#(<= ULTIMATE.start_main_~j~5 37), 51745#(<= ULTIMATE.start_main_~j~5 36), 51746#(<= ULTIMATE.start_main_~j~5 35), 51747#(<= ULTIMATE.start_main_~j~5 34), 51748#(<= ULTIMATE.start_main_~j~5 33), 51749#(<= ULTIMATE.start_main_~j~5 32), 51750#(<= ULTIMATE.start_main_~j~5 31), 51751#(<= ULTIMATE.start_main_~j~5 30), 51752#(<= ULTIMATE.start_main_~j~5 29), 51753#(<= ULTIMATE.start_main_~j~5 28), 51754#(<= ULTIMATE.start_main_~j~5 27), 51755#(<= ULTIMATE.start_main_~j~5 26), 51756#(<= ULTIMATE.start_main_~j~5 25), 51757#(<= ULTIMATE.start_main_~j~5 24), 51758#(<= ULTIMATE.start_main_~j~5 23), 51759#(<= ULTIMATE.start_main_~j~5 22), 51760#(<= ULTIMATE.start_main_~j~5 21), 51761#(<= ULTIMATE.start_main_~j~5 20), 51762#(<= ULTIMATE.start_main_~j~5 19), 51763#(<= ULTIMATE.start_main_~j~5 18), 51764#(<= ULTIMATE.start_main_~j~5 17), 51765#(<= ULTIMATE.start_main_~j~5 16), 51766#(<= ULTIMATE.start_main_~j~5 15), 51767#(<= ULTIMATE.start_main_~j~5 14), 51768#(<= ULTIMATE.start_main_~j~5 13), 51769#(<= ULTIMATE.start_main_~j~5 12), 51770#(<= ULTIMATE.start_main_~j~5 11), 51771#(<= ULTIMATE.start_main_~j~5 10), 51772#(<= ULTIMATE.start_main_~j~5 9), 51773#(<= ULTIMATE.start_main_~j~5 8), 51774#(<= ULTIMATE.start_main_~j~5 7), 51775#(<= ULTIMATE.start_main_~j~5 6), 51776#(<= ULTIMATE.start_main_~j~5 5), 51777#(<= ULTIMATE.start_main_~j~5 4), 51778#(<= ULTIMATE.start_main_~j~5 3), 51779#(<= ULTIMATE.start_main_~j~5 2), 51780#(<= ULTIMATE.start_main_~j~5 1), 51781#(<= ULTIMATE.start_main_~j~5 0), 51674#true, 51675#false, 51676#(<= ULTIMATE.start_main_~i~5 0), 51677#(<= ULTIMATE.start_main_~i~5 1), 51678#(<= ULTIMATE.start_main_~i~5 2), 51679#(<= ULTIMATE.start_main_~i~5 3), 51680#(<= ULTIMATE.start_main_~i~5 4), 51681#(<= ULTIMATE.start_main_~i~5 5), 51682#(<= ULTIMATE.start_main_~i~5 6), 51683#(<= ULTIMATE.start_main_~i~5 7), 51684#(<= ULTIMATE.start_main_~i~5 8), 51685#(<= ULTIMATE.start_main_~i~5 9), 51686#(<= ULTIMATE.start_main_~i~5 10), 51687#(<= ULTIMATE.start_main_~i~5 11), 51688#(<= ULTIMATE.start_main_~i~5 12), 51689#(<= ULTIMATE.start_main_~i~5 13), 51690#(<= ULTIMATE.start_main_~i~5 14), 51691#(<= ULTIMATE.start_main_~i~5 15), 51692#(<= ULTIMATE.start_main_~i~5 16), 51693#(<= ULTIMATE.start_main_~i~5 17), 51694#(<= ULTIMATE.start_main_~i~5 18), 51695#(<= ULTIMATE.start_main_~i~5 19), 51696#(<= ULTIMATE.start_main_~i~5 20), 51697#(<= ULTIMATE.start_main_~i~5 21), 51698#(<= ULTIMATE.start_main_~i~5 22), 51699#(<= ULTIMATE.start_main_~i~5 23), 51700#(<= ULTIMATE.start_main_~i~5 24), 51701#(<= ULTIMATE.start_main_~i~5 25), 51702#(<= ULTIMATE.start_main_~i~5 26), 51703#(<= ULTIMATE.start_main_~i~5 27), 51704#(<= ULTIMATE.start_main_~i~5 28), 51705#(<= ULTIMATE.start_main_~i~5 29), 51706#(<= ULTIMATE.start_main_~i~5 30), 51707#(<= ULTIMATE.start_main_~i~5 31), 51708#(<= ULTIMATE.start_main_~i~5 32), 51709#(<= ULTIMATE.start_main_~i~5 33), 51710#(<= ULTIMATE.start_main_~i~5 34), 51711#(<= ULTIMATE.start_main_~i~5 35)] [2018-07-23 13:41:25,002 INFO L134 CoverageAnalysis]: Checked inductivity of 4134 backedges. 2756 proven. 1378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:25,002 INFO L450 AbstractCegarLoop]: Interpolant automaton has 108 states [2018-07-23 13:41:25,003 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 108 interpolants. [2018-07-23 13:41:25,003 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2969, Invalid=8587, Unknown=0, NotChecked=0, Total=11556 [2018-07-23 13:41:25,004 INFO L87 Difference]: Start difference. First operand 162 states and 163 transitions. Second operand 108 states. [2018-07-23 13:41:25,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:25,383 INFO L93 Difference]: Finished difference Result 272 states and 274 transitions. [2018-07-23 13:41:25,383 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2018-07-23 13:41:25,383 INFO L78 Accepts]: Start accepts. Automaton has 108 states. Word has length 161 [2018-07-23 13:41:25,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:25,384 INFO L225 Difference]: With dead ends: 272 [2018-07-23 13:41:25,384 INFO L226 Difference]: Without dead ends: 163 [2018-07-23 13:41:25,386 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4082 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=5937, Invalid=19823, Unknown=0, NotChecked=0, Total=25760 [2018-07-23 13:41:25,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2018-07-23 13:41:25,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2018-07-23 13:41:25,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2018-07-23 13:41:25,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 164 transitions. [2018-07-23 13:41:25,402 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 164 transitions. Word has length 161 [2018-07-23 13:41:25,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:25,403 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 164 transitions. [2018-07-23 13:41:25,403 INFO L472 AbstractCegarLoop]: Interpolant automaton has 108 states. [2018-07-23 13:41:25,403 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 164 transitions. [2018-07-23 13:41:25,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2018-07-23 13:41:25,403 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:25,404 INFO L357 BasicCegarLoop]: trace histogram [53, 53, 52, 1, 1, 1, 1] [2018-07-23 13:41:25,404 INFO L414 AbstractCegarLoop]: === Iteration 106 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:25,404 INFO L82 PathProgramCache]: Analyzing trace with hash 1055958210, now seen corresponding path program 104 times [2018-07-23 13:41:25,404 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:25,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:25,552 INFO L134 CoverageAnalysis]: Checked inductivity of 4187 backedges. 1431 proven. 2756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:25,553 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:25,553 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [56] total 56 [2018-07-23 13:41:25,553 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:25,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:25,553 INFO L185 omatonBuilderFactory]: Interpolants [52758#true, 52759#false, 52760#(<= 0 ULTIMATE.start_main_~k~5), 52761#(<= 1 ULTIMATE.start_main_~k~5), 52762#(<= 2 ULTIMATE.start_main_~k~5), 52763#(<= 3 ULTIMATE.start_main_~k~5), 52764#(<= 4 ULTIMATE.start_main_~k~5), 52765#(<= 5 ULTIMATE.start_main_~k~5), 52766#(<= 6 ULTIMATE.start_main_~k~5), 52767#(<= 7 ULTIMATE.start_main_~k~5), 52768#(<= 8 ULTIMATE.start_main_~k~5), 52769#(<= 9 ULTIMATE.start_main_~k~5), 52770#(<= 10 ULTIMATE.start_main_~k~5), 52771#(<= 11 ULTIMATE.start_main_~k~5), 52772#(<= 12 ULTIMATE.start_main_~k~5), 52773#(<= 13 ULTIMATE.start_main_~k~5), 52774#(<= 14 ULTIMATE.start_main_~k~5), 52775#(<= 15 ULTIMATE.start_main_~k~5), 52776#(<= 16 ULTIMATE.start_main_~k~5), 52777#(<= 17 ULTIMATE.start_main_~k~5), 52778#(<= 18 ULTIMATE.start_main_~k~5), 52779#(<= 19 ULTIMATE.start_main_~k~5), 52780#(<= 20 ULTIMATE.start_main_~k~5), 52781#(<= 21 ULTIMATE.start_main_~k~5), 52782#(<= 22 ULTIMATE.start_main_~k~5), 52783#(<= 23 ULTIMATE.start_main_~k~5), 52784#(<= 24 ULTIMATE.start_main_~k~5), 52785#(<= 25 ULTIMATE.start_main_~k~5), 52786#(<= 26 ULTIMATE.start_main_~k~5), 52787#(<= 27 ULTIMATE.start_main_~k~5), 52788#(<= 28 ULTIMATE.start_main_~k~5), 52789#(<= 29 ULTIMATE.start_main_~k~5), 52790#(<= 30 ULTIMATE.start_main_~k~5), 52791#(<= 31 ULTIMATE.start_main_~k~5), 52792#(<= 32 ULTIMATE.start_main_~k~5), 52793#(<= 33 ULTIMATE.start_main_~k~5), 52794#(<= 34 ULTIMATE.start_main_~k~5), 52795#(<= 35 ULTIMATE.start_main_~k~5), 52796#(<= 36 ULTIMATE.start_main_~k~5), 52797#(<= 37 ULTIMATE.start_main_~k~5), 52798#(<= 38 ULTIMATE.start_main_~k~5), 52799#(<= 39 ULTIMATE.start_main_~k~5), 52800#(<= 40 ULTIMATE.start_main_~k~5), 52801#(<= 41 ULTIMATE.start_main_~k~5), 52802#(<= 42 ULTIMATE.start_main_~k~5), 52803#(<= 43 ULTIMATE.start_main_~k~5), 52804#(<= 44 ULTIMATE.start_main_~k~5), 52805#(<= 45 ULTIMATE.start_main_~k~5), 52806#(<= 46 ULTIMATE.start_main_~k~5), 52807#(<= 47 ULTIMATE.start_main_~k~5), 52808#(<= 48 ULTIMATE.start_main_~k~5), 52809#(<= 49 ULTIMATE.start_main_~k~5), 52810#(<= 50 ULTIMATE.start_main_~k~5), 52811#(<= 51 ULTIMATE.start_main_~k~5), 52812#(<= 52 ULTIMATE.start_main_~k~5), 52813#(<= 53 ULTIMATE.start_main_~k~5), 52814#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond)] [2018-07-23 13:41:25,554 INFO L134 CoverageAnalysis]: Checked inductivity of 4187 backedges. 1431 proven. 2756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:25,554 INFO L450 AbstractCegarLoop]: Interpolant automaton has 57 states [2018-07-23 13:41:25,554 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2018-07-23 13:41:25,555 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1542, Invalid=1650, Unknown=0, NotChecked=0, Total=3192 [2018-07-23 13:41:25,555 INFO L87 Difference]: Start difference. First operand 163 states and 164 transitions. Second operand 57 states. [2018-07-23 13:41:25,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:25,692 INFO L93 Difference]: Finished difference Result 171 states and 172 transitions. [2018-07-23 13:41:25,692 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2018-07-23 13:41:25,692 INFO L78 Accepts]: Start accepts. Automaton has 57 states. Word has length 162 [2018-07-23 13:41:25,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:25,693 INFO L225 Difference]: With dead ends: 171 [2018-07-23 13:41:25,693 INFO L226 Difference]: Without dead ends: 169 [2018-07-23 13:41:25,694 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2862 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=4620, Invalid=7590, Unknown=0, NotChecked=0, Total=12210 [2018-07-23 13:41:25,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2018-07-23 13:41:25,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 165. [2018-07-23 13:41:25,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2018-07-23 13:41:25,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 166 transitions. [2018-07-23 13:41:25,710 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 166 transitions. Word has length 162 [2018-07-23 13:41:25,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:25,710 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 166 transitions. [2018-07-23 13:41:25,710 INFO L472 AbstractCegarLoop]: Interpolant automaton has 57 states. [2018-07-23 13:41:25,710 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 166 transitions. [2018-07-23 13:41:25,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2018-07-23 13:41:25,711 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:25,711 INFO L357 BasicCegarLoop]: trace histogram [54, 53, 53, 1, 1, 1, 1] [2018-07-23 13:41:25,711 INFO L414 AbstractCegarLoop]: === Iteration 107 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:25,711 INFO L82 PathProgramCache]: Analyzing trace with hash 1163623978, now seen corresponding path program 105 times [2018-07-23 13:41:25,711 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:25,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:25,972 INFO L134 CoverageAnalysis]: Checked inductivity of 4293 backedges. 2862 proven. 1431 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:25,973 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:25,973 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [109] total 109 [2018-07-23 13:41:25,973 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:25,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:25,973 INFO L185 omatonBuilderFactory]: Interpolants [53595#true, 53596#false, 53597#(<= ULTIMATE.start_main_~i~5 0), 53598#(<= ULTIMATE.start_main_~i~5 1), 53599#(<= ULTIMATE.start_main_~i~5 2), 53600#(<= ULTIMATE.start_main_~i~5 3), 53601#(<= ULTIMATE.start_main_~i~5 4), 53602#(<= ULTIMATE.start_main_~i~5 5), 53603#(<= ULTIMATE.start_main_~i~5 6), 53604#(<= ULTIMATE.start_main_~i~5 7), 53605#(<= ULTIMATE.start_main_~i~5 8), 53606#(<= ULTIMATE.start_main_~i~5 9), 53607#(<= ULTIMATE.start_main_~i~5 10), 53608#(<= ULTIMATE.start_main_~i~5 11), 53609#(<= ULTIMATE.start_main_~i~5 12), 53610#(<= ULTIMATE.start_main_~i~5 13), 53611#(<= ULTIMATE.start_main_~i~5 14), 53612#(<= ULTIMATE.start_main_~i~5 15), 53613#(<= ULTIMATE.start_main_~i~5 16), 53614#(<= ULTIMATE.start_main_~i~5 17), 53615#(<= ULTIMATE.start_main_~i~5 18), 53616#(<= ULTIMATE.start_main_~i~5 19), 53617#(<= ULTIMATE.start_main_~i~5 20), 53618#(<= ULTIMATE.start_main_~i~5 21), 53619#(<= ULTIMATE.start_main_~i~5 22), 53620#(<= ULTIMATE.start_main_~i~5 23), 53621#(<= ULTIMATE.start_main_~i~5 24), 53622#(<= ULTIMATE.start_main_~i~5 25), 53623#(<= ULTIMATE.start_main_~i~5 26), 53624#(<= ULTIMATE.start_main_~i~5 27), 53625#(<= ULTIMATE.start_main_~i~5 28), 53626#(<= ULTIMATE.start_main_~i~5 29), 53627#(<= ULTIMATE.start_main_~i~5 30), 53628#(<= ULTIMATE.start_main_~i~5 31), 53629#(<= ULTIMATE.start_main_~i~5 32), 53630#(<= ULTIMATE.start_main_~i~5 33), 53631#(<= ULTIMATE.start_main_~i~5 34), 53632#(<= ULTIMATE.start_main_~i~5 35), 53633#(<= ULTIMATE.start_main_~i~5 36), 53634#(<= ULTIMATE.start_main_~i~5 37), 53635#(<= ULTIMATE.start_main_~i~5 38), 53636#(<= ULTIMATE.start_main_~i~5 39), 53637#(<= ULTIMATE.start_main_~i~5 40), 53638#(<= ULTIMATE.start_main_~i~5 41), 53639#(<= ULTIMATE.start_main_~i~5 42), 53640#(<= ULTIMATE.start_main_~i~5 43), 53641#(<= ULTIMATE.start_main_~i~5 44), 53642#(<= ULTIMATE.start_main_~i~5 45), 53643#(<= ULTIMATE.start_main_~i~5 46), 53644#(<= ULTIMATE.start_main_~i~5 47), 53645#(<= ULTIMATE.start_main_~i~5 48), 53646#(<= ULTIMATE.start_main_~i~5 49), 53647#(<= ULTIMATE.start_main_~i~5 50), 53648#(<= ULTIMATE.start_main_~i~5 51), 53649#(<= ULTIMATE.start_main_~i~5 52), 53650#(<= ULTIMATE.start_main_~i~5 53), 53651#(<= ULTIMATE.start_main_~j~5 53), 53652#(<= ULTIMATE.start_main_~j~5 52), 53653#(<= ULTIMATE.start_main_~j~5 51), 53654#(<= ULTIMATE.start_main_~j~5 50), 53655#(<= ULTIMATE.start_main_~j~5 49), 53656#(<= ULTIMATE.start_main_~j~5 48), 53657#(<= ULTIMATE.start_main_~j~5 47), 53658#(<= ULTIMATE.start_main_~j~5 46), 53659#(<= ULTIMATE.start_main_~j~5 45), 53660#(<= ULTIMATE.start_main_~j~5 44), 53661#(<= ULTIMATE.start_main_~j~5 43), 53662#(<= ULTIMATE.start_main_~j~5 42), 53663#(<= ULTIMATE.start_main_~j~5 41), 53664#(<= ULTIMATE.start_main_~j~5 40), 53665#(<= ULTIMATE.start_main_~j~5 39), 53666#(<= ULTIMATE.start_main_~j~5 38), 53667#(<= ULTIMATE.start_main_~j~5 37), 53668#(<= ULTIMATE.start_main_~j~5 36), 53669#(<= ULTIMATE.start_main_~j~5 35), 53670#(<= ULTIMATE.start_main_~j~5 34), 53671#(<= ULTIMATE.start_main_~j~5 33), 53672#(<= ULTIMATE.start_main_~j~5 32), 53673#(<= ULTIMATE.start_main_~j~5 31), 53674#(<= ULTIMATE.start_main_~j~5 30), 53675#(<= ULTIMATE.start_main_~j~5 29), 53676#(<= ULTIMATE.start_main_~j~5 28), 53677#(<= ULTIMATE.start_main_~j~5 27), 53678#(<= ULTIMATE.start_main_~j~5 26), 53679#(<= ULTIMATE.start_main_~j~5 25), 53680#(<= ULTIMATE.start_main_~j~5 24), 53681#(<= ULTIMATE.start_main_~j~5 23), 53682#(<= ULTIMATE.start_main_~j~5 22), 53683#(<= ULTIMATE.start_main_~j~5 21), 53684#(<= ULTIMATE.start_main_~j~5 20), 53685#(<= ULTIMATE.start_main_~j~5 19), 53686#(<= ULTIMATE.start_main_~j~5 18), 53687#(<= ULTIMATE.start_main_~j~5 17), 53688#(<= ULTIMATE.start_main_~j~5 16), 53689#(<= ULTIMATE.start_main_~j~5 15), 53690#(<= ULTIMATE.start_main_~j~5 14), 53691#(<= ULTIMATE.start_main_~j~5 13), 53692#(<= ULTIMATE.start_main_~j~5 12), 53693#(<= ULTIMATE.start_main_~j~5 11), 53694#(<= ULTIMATE.start_main_~j~5 10), 53695#(<= ULTIMATE.start_main_~j~5 9), 53696#(<= ULTIMATE.start_main_~j~5 8), 53697#(<= ULTIMATE.start_main_~j~5 7), 53698#(<= ULTIMATE.start_main_~j~5 6), 53699#(<= ULTIMATE.start_main_~j~5 5), 53700#(<= ULTIMATE.start_main_~j~5 4), 53701#(<= ULTIMATE.start_main_~j~5 3), 53702#(<= ULTIMATE.start_main_~j~5 2), 53703#(<= ULTIMATE.start_main_~j~5 1), 53704#(<= ULTIMATE.start_main_~j~5 0)] [2018-07-23 13:41:25,974 INFO L134 CoverageAnalysis]: Checked inductivity of 4293 backedges. 2862 proven. 1431 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:25,974 INFO L450 AbstractCegarLoop]: Interpolant automaton has 110 states [2018-07-23 13:41:25,974 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 110 interpolants. [2018-07-23 13:41:25,975 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3079, Invalid=8911, Unknown=0, NotChecked=0, Total=11990 [2018-07-23 13:41:25,975 INFO L87 Difference]: Start difference. First operand 165 states and 166 transitions. Second operand 110 states. [2018-07-23 13:41:26,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:26,641 INFO L93 Difference]: Finished difference Result 277 states and 279 transitions. [2018-07-23 13:41:26,641 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2018-07-23 13:41:26,641 INFO L78 Accepts]: Start accepts. Automaton has 110 states. Word has length 164 [2018-07-23 13:41:26,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:26,642 INFO L225 Difference]: With dead ends: 277 [2018-07-23 13:41:26,642 INFO L226 Difference]: Without dead ends: 166 [2018-07-23 13:41:26,643 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 162 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4240 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6157, Invalid=20575, Unknown=0, NotChecked=0, Total=26732 [2018-07-23 13:41:26,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2018-07-23 13:41:26,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2018-07-23 13:41:26,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2018-07-23 13:41:26,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 167 transitions. [2018-07-23 13:41:26,661 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 167 transitions. Word has length 164 [2018-07-23 13:41:26,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:26,661 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 167 transitions. [2018-07-23 13:41:26,661 INFO L472 AbstractCegarLoop]: Interpolant automaton has 110 states. [2018-07-23 13:41:26,662 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 167 transitions. [2018-07-23 13:41:26,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2018-07-23 13:41:26,662 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:26,662 INFO L357 BasicCegarLoop]: trace histogram [54, 54, 53, 1, 1, 1, 1] [2018-07-23 13:41:26,663 INFO L414 AbstractCegarLoop]: === Iteration 108 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:26,663 INFO L82 PathProgramCache]: Analyzing trace with hash -1931882205, now seen corresponding path program 106 times [2018-07-23 13:41:26,663 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:26,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:26,890 INFO L134 CoverageAnalysis]: Checked inductivity of 4347 backedges. 1485 proven. 2862 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:26,890 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:26,890 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [57] total 57 [2018-07-23 13:41:26,891 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:26,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:26,891 INFO L185 omatonBuilderFactory]: Interpolants [54699#true, 54700#false, 54701#(<= 0 ULTIMATE.start_main_~k~5), 54702#(<= 1 ULTIMATE.start_main_~k~5), 54703#(<= 2 ULTIMATE.start_main_~k~5), 54704#(<= 3 ULTIMATE.start_main_~k~5), 54705#(<= 4 ULTIMATE.start_main_~k~5), 54706#(<= 5 ULTIMATE.start_main_~k~5), 54707#(<= 6 ULTIMATE.start_main_~k~5), 54708#(<= 7 ULTIMATE.start_main_~k~5), 54709#(<= 8 ULTIMATE.start_main_~k~5), 54710#(<= 9 ULTIMATE.start_main_~k~5), 54711#(<= 10 ULTIMATE.start_main_~k~5), 54712#(<= 11 ULTIMATE.start_main_~k~5), 54713#(<= 12 ULTIMATE.start_main_~k~5), 54714#(<= 13 ULTIMATE.start_main_~k~5), 54715#(<= 14 ULTIMATE.start_main_~k~5), 54716#(<= 15 ULTIMATE.start_main_~k~5), 54717#(<= 16 ULTIMATE.start_main_~k~5), 54718#(<= 17 ULTIMATE.start_main_~k~5), 54719#(<= 18 ULTIMATE.start_main_~k~5), 54720#(<= 19 ULTIMATE.start_main_~k~5), 54721#(<= 20 ULTIMATE.start_main_~k~5), 54722#(<= 21 ULTIMATE.start_main_~k~5), 54723#(<= 22 ULTIMATE.start_main_~k~5), 54724#(<= 23 ULTIMATE.start_main_~k~5), 54725#(<= 24 ULTIMATE.start_main_~k~5), 54726#(<= 25 ULTIMATE.start_main_~k~5), 54727#(<= 26 ULTIMATE.start_main_~k~5), 54728#(<= 27 ULTIMATE.start_main_~k~5), 54729#(<= 28 ULTIMATE.start_main_~k~5), 54730#(<= 29 ULTIMATE.start_main_~k~5), 54731#(<= 30 ULTIMATE.start_main_~k~5), 54732#(<= 31 ULTIMATE.start_main_~k~5), 54733#(<= 32 ULTIMATE.start_main_~k~5), 54734#(<= 33 ULTIMATE.start_main_~k~5), 54735#(<= 34 ULTIMATE.start_main_~k~5), 54736#(<= 35 ULTIMATE.start_main_~k~5), 54737#(<= 36 ULTIMATE.start_main_~k~5), 54738#(<= 37 ULTIMATE.start_main_~k~5), 54739#(<= 38 ULTIMATE.start_main_~k~5), 54740#(<= 39 ULTIMATE.start_main_~k~5), 54741#(<= 40 ULTIMATE.start_main_~k~5), 54742#(<= 41 ULTIMATE.start_main_~k~5), 54743#(<= 42 ULTIMATE.start_main_~k~5), 54744#(<= 43 ULTIMATE.start_main_~k~5), 54745#(<= 44 ULTIMATE.start_main_~k~5), 54746#(<= 45 ULTIMATE.start_main_~k~5), 54747#(<= 46 ULTIMATE.start_main_~k~5), 54748#(<= 47 ULTIMATE.start_main_~k~5), 54749#(<= 48 ULTIMATE.start_main_~k~5), 54750#(<= 49 ULTIMATE.start_main_~k~5), 54751#(<= 50 ULTIMATE.start_main_~k~5), 54752#(<= 51 ULTIMATE.start_main_~k~5), 54753#(<= 52 ULTIMATE.start_main_~k~5), 54754#(<= 53 ULTIMATE.start_main_~k~5), 54755#(<= 54 ULTIMATE.start_main_~k~5), 54756#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond)] [2018-07-23 13:41:26,892 INFO L134 CoverageAnalysis]: Checked inductivity of 4347 backedges. 1485 proven. 2862 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:26,892 INFO L450 AbstractCegarLoop]: Interpolant automaton has 58 states [2018-07-23 13:41:26,892 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2018-07-23 13:41:26,892 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1598, Invalid=1708, Unknown=0, NotChecked=0, Total=3306 [2018-07-23 13:41:26,893 INFO L87 Difference]: Start difference. First operand 166 states and 167 transitions. Second operand 58 states. [2018-07-23 13:41:27,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:27,033 INFO L93 Difference]: Finished difference Result 174 states and 175 transitions. [2018-07-23 13:41:27,033 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2018-07-23 13:41:27,033 INFO L78 Accepts]: Start accepts. Automaton has 58 states. Word has length 165 [2018-07-23 13:41:27,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:27,034 INFO L225 Difference]: With dead ends: 174 [2018-07-23 13:41:27,034 INFO L226 Difference]: Without dead ends: 172 [2018-07-23 13:41:27,035 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2970 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=4788, Invalid=7868, Unknown=0, NotChecked=0, Total=12656 [2018-07-23 13:41:27,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2018-07-23 13:41:27,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 168. [2018-07-23 13:41:27,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2018-07-23 13:41:27,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 169 transitions. [2018-07-23 13:41:27,054 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 169 transitions. Word has length 165 [2018-07-23 13:41:27,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:27,054 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 169 transitions. [2018-07-23 13:41:27,054 INFO L472 AbstractCegarLoop]: Interpolant automaton has 58 states. [2018-07-23 13:41:27,054 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 169 transitions. [2018-07-23 13:41:27,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2018-07-23 13:41:27,055 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:27,055 INFO L357 BasicCegarLoop]: trace histogram [55, 54, 54, 1, 1, 1, 1] [2018-07-23 13:41:27,055 INFO L414 AbstractCegarLoop]: === Iteration 109 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:27,055 INFO L82 PathProgramCache]: Analyzing trace with hash -1112861109, now seen corresponding path program 107 times [2018-07-23 13:41:27,055 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:27,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:27,330 INFO L134 CoverageAnalysis]: Checked inductivity of 4455 backedges. 2970 proven. 1485 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:27,331 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:27,331 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [111] total 111 [2018-07-23 13:41:27,331 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:27,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:27,331 INFO L185 omatonBuilderFactory]: Interpolants [55552#false, 55553#(<= ULTIMATE.start_main_~i~5 0), 55554#(<= ULTIMATE.start_main_~i~5 1), 55555#(<= ULTIMATE.start_main_~i~5 2), 55556#(<= ULTIMATE.start_main_~i~5 3), 55557#(<= ULTIMATE.start_main_~i~5 4), 55558#(<= ULTIMATE.start_main_~i~5 5), 55559#(<= ULTIMATE.start_main_~i~5 6), 55560#(<= ULTIMATE.start_main_~i~5 7), 55561#(<= ULTIMATE.start_main_~i~5 8), 55562#(<= ULTIMATE.start_main_~i~5 9), 55563#(<= ULTIMATE.start_main_~i~5 10), 55564#(<= ULTIMATE.start_main_~i~5 11), 55565#(<= ULTIMATE.start_main_~i~5 12), 55566#(<= ULTIMATE.start_main_~i~5 13), 55567#(<= ULTIMATE.start_main_~i~5 14), 55568#(<= ULTIMATE.start_main_~i~5 15), 55569#(<= ULTIMATE.start_main_~i~5 16), 55570#(<= ULTIMATE.start_main_~i~5 17), 55571#(<= ULTIMATE.start_main_~i~5 18), 55572#(<= ULTIMATE.start_main_~i~5 19), 55573#(<= ULTIMATE.start_main_~i~5 20), 55574#(<= ULTIMATE.start_main_~i~5 21), 55575#(<= ULTIMATE.start_main_~i~5 22), 55576#(<= ULTIMATE.start_main_~i~5 23), 55577#(<= ULTIMATE.start_main_~i~5 24), 55578#(<= ULTIMATE.start_main_~i~5 25), 55579#(<= ULTIMATE.start_main_~i~5 26), 55580#(<= ULTIMATE.start_main_~i~5 27), 55581#(<= ULTIMATE.start_main_~i~5 28), 55582#(<= ULTIMATE.start_main_~i~5 29), 55583#(<= ULTIMATE.start_main_~i~5 30), 55584#(<= ULTIMATE.start_main_~i~5 31), 55585#(<= ULTIMATE.start_main_~i~5 32), 55586#(<= ULTIMATE.start_main_~i~5 33), 55587#(<= ULTIMATE.start_main_~i~5 34), 55588#(<= ULTIMATE.start_main_~i~5 35), 55589#(<= ULTIMATE.start_main_~i~5 36), 55590#(<= ULTIMATE.start_main_~i~5 37), 55591#(<= ULTIMATE.start_main_~i~5 38), 55592#(<= ULTIMATE.start_main_~i~5 39), 55593#(<= ULTIMATE.start_main_~i~5 40), 55594#(<= ULTIMATE.start_main_~i~5 41), 55595#(<= ULTIMATE.start_main_~i~5 42), 55596#(<= ULTIMATE.start_main_~i~5 43), 55597#(<= ULTIMATE.start_main_~i~5 44), 55598#(<= ULTIMATE.start_main_~i~5 45), 55599#(<= ULTIMATE.start_main_~i~5 46), 55600#(<= ULTIMATE.start_main_~i~5 47), 55601#(<= ULTIMATE.start_main_~i~5 48), 55602#(<= ULTIMATE.start_main_~i~5 49), 55603#(<= ULTIMATE.start_main_~i~5 50), 55604#(<= ULTIMATE.start_main_~i~5 51), 55605#(<= ULTIMATE.start_main_~i~5 52), 55606#(<= ULTIMATE.start_main_~i~5 53), 55607#(<= ULTIMATE.start_main_~i~5 54), 55608#(<= ULTIMATE.start_main_~j~5 54), 55609#(<= ULTIMATE.start_main_~j~5 53), 55610#(<= ULTIMATE.start_main_~j~5 52), 55611#(<= ULTIMATE.start_main_~j~5 51), 55612#(<= ULTIMATE.start_main_~j~5 50), 55613#(<= ULTIMATE.start_main_~j~5 49), 55614#(<= ULTIMATE.start_main_~j~5 48), 55615#(<= ULTIMATE.start_main_~j~5 47), 55616#(<= ULTIMATE.start_main_~j~5 46), 55617#(<= ULTIMATE.start_main_~j~5 45), 55618#(<= ULTIMATE.start_main_~j~5 44), 55619#(<= ULTIMATE.start_main_~j~5 43), 55620#(<= ULTIMATE.start_main_~j~5 42), 55621#(<= ULTIMATE.start_main_~j~5 41), 55622#(<= ULTIMATE.start_main_~j~5 40), 55623#(<= ULTIMATE.start_main_~j~5 39), 55624#(<= ULTIMATE.start_main_~j~5 38), 55625#(<= ULTIMATE.start_main_~j~5 37), 55626#(<= ULTIMATE.start_main_~j~5 36), 55627#(<= ULTIMATE.start_main_~j~5 35), 55628#(<= ULTIMATE.start_main_~j~5 34), 55629#(<= ULTIMATE.start_main_~j~5 33), 55630#(<= ULTIMATE.start_main_~j~5 32), 55631#(<= ULTIMATE.start_main_~j~5 31), 55632#(<= ULTIMATE.start_main_~j~5 30), 55633#(<= ULTIMATE.start_main_~j~5 29), 55634#(<= ULTIMATE.start_main_~j~5 28), 55635#(<= ULTIMATE.start_main_~j~5 27), 55636#(<= ULTIMATE.start_main_~j~5 26), 55637#(<= ULTIMATE.start_main_~j~5 25), 55638#(<= ULTIMATE.start_main_~j~5 24), 55639#(<= ULTIMATE.start_main_~j~5 23), 55640#(<= ULTIMATE.start_main_~j~5 22), 55641#(<= ULTIMATE.start_main_~j~5 21), 55642#(<= ULTIMATE.start_main_~j~5 20), 55643#(<= ULTIMATE.start_main_~j~5 19), 55644#(<= ULTIMATE.start_main_~j~5 18), 55645#(<= ULTIMATE.start_main_~j~5 17), 55646#(<= ULTIMATE.start_main_~j~5 16), 55647#(<= ULTIMATE.start_main_~j~5 15), 55648#(<= ULTIMATE.start_main_~j~5 14), 55649#(<= ULTIMATE.start_main_~j~5 13), 55650#(<= ULTIMATE.start_main_~j~5 12), 55651#(<= ULTIMATE.start_main_~j~5 11), 55652#(<= ULTIMATE.start_main_~j~5 10), 55653#(<= ULTIMATE.start_main_~j~5 9), 55654#(<= ULTIMATE.start_main_~j~5 8), 55655#(<= ULTIMATE.start_main_~j~5 7), 55656#(<= ULTIMATE.start_main_~j~5 6), 55657#(<= ULTIMATE.start_main_~j~5 5), 55658#(<= ULTIMATE.start_main_~j~5 4), 55659#(<= ULTIMATE.start_main_~j~5 3), 55660#(<= ULTIMATE.start_main_~j~5 2), 55661#(<= ULTIMATE.start_main_~j~5 1), 55662#(<= ULTIMATE.start_main_~j~5 0), 55551#true] [2018-07-23 13:41:27,332 INFO L134 CoverageAnalysis]: Checked inductivity of 4455 backedges. 2970 proven. 1485 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:27,332 INFO L450 AbstractCegarLoop]: Interpolant automaton has 112 states [2018-07-23 13:41:27,332 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 112 interpolants. [2018-07-23 13:41:27,333 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3191, Invalid=9241, Unknown=0, NotChecked=0, Total=12432 [2018-07-23 13:41:27,333 INFO L87 Difference]: Start difference. First operand 168 states and 169 transitions. Second operand 112 states. [2018-07-23 13:41:28,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:28,055 INFO L93 Difference]: Finished difference Result 282 states and 284 transitions. [2018-07-23 13:41:28,055 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2018-07-23 13:41:28,055 INFO L78 Accepts]: Start accepts. Automaton has 112 states. Word has length 167 [2018-07-23 13:41:28,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:28,056 INFO L225 Difference]: With dead ends: 282 [2018-07-23 13:41:28,056 INFO L226 Difference]: Without dead ends: 169 [2018-07-23 13:41:28,057 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 165 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4401 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6381, Invalid=21341, Unknown=0, NotChecked=0, Total=27722 [2018-07-23 13:41:28,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2018-07-23 13:41:28,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2018-07-23 13:41:28,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2018-07-23 13:41:28,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 170 transitions. [2018-07-23 13:41:28,079 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 170 transitions. Word has length 167 [2018-07-23 13:41:28,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:28,079 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 170 transitions. [2018-07-23 13:41:28,079 INFO L472 AbstractCegarLoop]: Interpolant automaton has 112 states. [2018-07-23 13:41:28,079 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 170 transitions. [2018-07-23 13:41:28,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2018-07-23 13:41:28,079 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:28,080 INFO L357 BasicCegarLoop]: trace histogram [55, 55, 54, 1, 1, 1, 1] [2018-07-23 13:41:28,080 INFO L414 AbstractCegarLoop]: === Iteration 110 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:28,080 INFO L82 PathProgramCache]: Analyzing trace with hash -2094746446, now seen corresponding path program 108 times [2018-07-23 13:41:28,080 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:28,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:28,241 INFO L134 CoverageAnalysis]: Checked inductivity of 4510 backedges. 1540 proven. 2970 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:28,242 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:28,242 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [58] total 58 [2018-07-23 13:41:28,242 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:28,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:28,242 INFO L185 omatonBuilderFactory]: Interpolants [56704#(<= 27 ULTIMATE.start_main_~k~5), 56705#(<= 28 ULTIMATE.start_main_~k~5), 56706#(<= 29 ULTIMATE.start_main_~k~5), 56707#(<= 30 ULTIMATE.start_main_~k~5), 56708#(<= 31 ULTIMATE.start_main_~k~5), 56709#(<= 32 ULTIMATE.start_main_~k~5), 56710#(<= 33 ULTIMATE.start_main_~k~5), 56711#(<= 34 ULTIMATE.start_main_~k~5), 56712#(<= 35 ULTIMATE.start_main_~k~5), 56713#(<= 36 ULTIMATE.start_main_~k~5), 56714#(<= 37 ULTIMATE.start_main_~k~5), 56715#(<= 38 ULTIMATE.start_main_~k~5), 56716#(<= 39 ULTIMATE.start_main_~k~5), 56717#(<= 40 ULTIMATE.start_main_~k~5), 56718#(<= 41 ULTIMATE.start_main_~k~5), 56719#(<= 42 ULTIMATE.start_main_~k~5), 56720#(<= 43 ULTIMATE.start_main_~k~5), 56721#(<= 44 ULTIMATE.start_main_~k~5), 56722#(<= 45 ULTIMATE.start_main_~k~5), 56723#(<= 46 ULTIMATE.start_main_~k~5), 56724#(<= 47 ULTIMATE.start_main_~k~5), 56725#(<= 48 ULTIMATE.start_main_~k~5), 56726#(<= 49 ULTIMATE.start_main_~k~5), 56727#(<= 50 ULTIMATE.start_main_~k~5), 56728#(<= 51 ULTIMATE.start_main_~k~5), 56729#(<= 52 ULTIMATE.start_main_~k~5), 56730#(<= 53 ULTIMATE.start_main_~k~5), 56731#(<= 54 ULTIMATE.start_main_~k~5), 56732#(<= 55 ULTIMATE.start_main_~k~5), 56733#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 56675#true, 56676#false, 56677#(<= 0 ULTIMATE.start_main_~k~5), 56678#(<= 1 ULTIMATE.start_main_~k~5), 56679#(<= 2 ULTIMATE.start_main_~k~5), 56680#(<= 3 ULTIMATE.start_main_~k~5), 56681#(<= 4 ULTIMATE.start_main_~k~5), 56682#(<= 5 ULTIMATE.start_main_~k~5), 56683#(<= 6 ULTIMATE.start_main_~k~5), 56684#(<= 7 ULTIMATE.start_main_~k~5), 56685#(<= 8 ULTIMATE.start_main_~k~5), 56686#(<= 9 ULTIMATE.start_main_~k~5), 56687#(<= 10 ULTIMATE.start_main_~k~5), 56688#(<= 11 ULTIMATE.start_main_~k~5), 56689#(<= 12 ULTIMATE.start_main_~k~5), 56690#(<= 13 ULTIMATE.start_main_~k~5), 56691#(<= 14 ULTIMATE.start_main_~k~5), 56692#(<= 15 ULTIMATE.start_main_~k~5), 56693#(<= 16 ULTIMATE.start_main_~k~5), 56694#(<= 17 ULTIMATE.start_main_~k~5), 56695#(<= 18 ULTIMATE.start_main_~k~5), 56696#(<= 19 ULTIMATE.start_main_~k~5), 56697#(<= 20 ULTIMATE.start_main_~k~5), 56698#(<= 21 ULTIMATE.start_main_~k~5), 56699#(<= 22 ULTIMATE.start_main_~k~5), 56700#(<= 23 ULTIMATE.start_main_~k~5), 56701#(<= 24 ULTIMATE.start_main_~k~5), 56702#(<= 25 ULTIMATE.start_main_~k~5), 56703#(<= 26 ULTIMATE.start_main_~k~5)] [2018-07-23 13:41:28,243 INFO L134 CoverageAnalysis]: Checked inductivity of 4510 backedges. 1540 proven. 2970 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:28,243 INFO L450 AbstractCegarLoop]: Interpolant automaton has 59 states [2018-07-23 13:41:28,243 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2018-07-23 13:41:28,243 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1655, Invalid=1767, Unknown=0, NotChecked=0, Total=3422 [2018-07-23 13:41:28,243 INFO L87 Difference]: Start difference. First operand 169 states and 170 transitions. Second operand 59 states. [2018-07-23 13:41:28,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:28,379 INFO L93 Difference]: Finished difference Result 177 states and 178 transitions. [2018-07-23 13:41:28,379 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2018-07-23 13:41:28,379 INFO L78 Accepts]: Start accepts. Automaton has 59 states. Word has length 168 [2018-07-23 13:41:28,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:28,380 INFO L225 Difference]: With dead ends: 177 [2018-07-23 13:41:28,380 INFO L226 Difference]: Without dead ends: 175 [2018-07-23 13:41:28,380 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3080 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=4959, Invalid=8151, Unknown=0, NotChecked=0, Total=13110 [2018-07-23 13:41:28,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2018-07-23 13:41:28,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 171. [2018-07-23 13:41:28,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2018-07-23 13:41:28,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 172 transitions. [2018-07-23 13:41:28,396 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 172 transitions. Word has length 168 [2018-07-23 13:41:28,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:28,396 INFO L471 AbstractCegarLoop]: Abstraction has 171 states and 172 transitions. [2018-07-23 13:41:28,396 INFO L472 AbstractCegarLoop]: Interpolant automaton has 59 states. [2018-07-23 13:41:28,396 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 172 transitions. [2018-07-23 13:41:28,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2018-07-23 13:41:28,397 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:28,397 INFO L357 BasicCegarLoop]: trace histogram [56, 55, 55, 1, 1, 1, 1] [2018-07-23 13:41:28,397 INFO L414 AbstractCegarLoop]: === Iteration 111 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:28,397 INFO L82 PathProgramCache]: Analyzing trace with hash 1288393242, now seen corresponding path program 109 times [2018-07-23 13:41:28,397 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:28,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:28,662 INFO L134 CoverageAnalysis]: Checked inductivity of 4620 backedges. 3080 proven. 1540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:28,662 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:28,663 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [113] total 113 [2018-07-23 13:41:28,663 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:28,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:28,663 INFO L185 omatonBuilderFactory]: Interpolants [57600#(<= ULTIMATE.start_main_~j~5 55), 57601#(<= ULTIMATE.start_main_~j~5 54), 57602#(<= ULTIMATE.start_main_~j~5 53), 57603#(<= ULTIMATE.start_main_~j~5 52), 57604#(<= ULTIMATE.start_main_~j~5 51), 57605#(<= ULTIMATE.start_main_~j~5 50), 57606#(<= ULTIMATE.start_main_~j~5 49), 57607#(<= ULTIMATE.start_main_~j~5 48), 57608#(<= ULTIMATE.start_main_~j~5 47), 57609#(<= ULTIMATE.start_main_~j~5 46), 57610#(<= ULTIMATE.start_main_~j~5 45), 57611#(<= ULTIMATE.start_main_~j~5 44), 57612#(<= ULTIMATE.start_main_~j~5 43), 57613#(<= ULTIMATE.start_main_~j~5 42), 57614#(<= ULTIMATE.start_main_~j~5 41), 57615#(<= ULTIMATE.start_main_~j~5 40), 57616#(<= ULTIMATE.start_main_~j~5 39), 57617#(<= ULTIMATE.start_main_~j~5 38), 57618#(<= ULTIMATE.start_main_~j~5 37), 57619#(<= ULTIMATE.start_main_~j~5 36), 57620#(<= ULTIMATE.start_main_~j~5 35), 57621#(<= ULTIMATE.start_main_~j~5 34), 57622#(<= ULTIMATE.start_main_~j~5 33), 57623#(<= ULTIMATE.start_main_~j~5 32), 57624#(<= ULTIMATE.start_main_~j~5 31), 57625#(<= ULTIMATE.start_main_~j~5 30), 57626#(<= ULTIMATE.start_main_~j~5 29), 57627#(<= ULTIMATE.start_main_~j~5 28), 57628#(<= ULTIMATE.start_main_~j~5 27), 57629#(<= ULTIMATE.start_main_~j~5 26), 57630#(<= ULTIMATE.start_main_~j~5 25), 57631#(<= ULTIMATE.start_main_~j~5 24), 57632#(<= ULTIMATE.start_main_~j~5 23), 57633#(<= ULTIMATE.start_main_~j~5 22), 57634#(<= ULTIMATE.start_main_~j~5 21), 57635#(<= ULTIMATE.start_main_~j~5 20), 57636#(<= ULTIMATE.start_main_~j~5 19), 57637#(<= ULTIMATE.start_main_~j~5 18), 57638#(<= ULTIMATE.start_main_~j~5 17), 57639#(<= ULTIMATE.start_main_~j~5 16), 57640#(<= ULTIMATE.start_main_~j~5 15), 57641#(<= ULTIMATE.start_main_~j~5 14), 57642#(<= ULTIMATE.start_main_~j~5 13), 57643#(<= ULTIMATE.start_main_~j~5 12), 57644#(<= ULTIMATE.start_main_~j~5 11), 57645#(<= ULTIMATE.start_main_~j~5 10), 57646#(<= ULTIMATE.start_main_~j~5 9), 57647#(<= ULTIMATE.start_main_~j~5 8), 57648#(<= ULTIMATE.start_main_~j~5 7), 57649#(<= ULTIMATE.start_main_~j~5 6), 57650#(<= ULTIMATE.start_main_~j~5 5), 57651#(<= ULTIMATE.start_main_~j~5 4), 57652#(<= ULTIMATE.start_main_~j~5 3), 57653#(<= ULTIMATE.start_main_~j~5 2), 57654#(<= ULTIMATE.start_main_~j~5 1), 57655#(<= ULTIMATE.start_main_~j~5 0), 57542#true, 57543#false, 57544#(<= ULTIMATE.start_main_~i~5 0), 57545#(<= ULTIMATE.start_main_~i~5 1), 57546#(<= ULTIMATE.start_main_~i~5 2), 57547#(<= ULTIMATE.start_main_~i~5 3), 57548#(<= ULTIMATE.start_main_~i~5 4), 57549#(<= ULTIMATE.start_main_~i~5 5), 57550#(<= ULTIMATE.start_main_~i~5 6), 57551#(<= ULTIMATE.start_main_~i~5 7), 57552#(<= ULTIMATE.start_main_~i~5 8), 57553#(<= ULTIMATE.start_main_~i~5 9), 57554#(<= ULTIMATE.start_main_~i~5 10), 57555#(<= ULTIMATE.start_main_~i~5 11), 57556#(<= ULTIMATE.start_main_~i~5 12), 57557#(<= ULTIMATE.start_main_~i~5 13), 57558#(<= ULTIMATE.start_main_~i~5 14), 57559#(<= ULTIMATE.start_main_~i~5 15), 57560#(<= ULTIMATE.start_main_~i~5 16), 57561#(<= ULTIMATE.start_main_~i~5 17), 57562#(<= ULTIMATE.start_main_~i~5 18), 57563#(<= ULTIMATE.start_main_~i~5 19), 57564#(<= ULTIMATE.start_main_~i~5 20), 57565#(<= ULTIMATE.start_main_~i~5 21), 57566#(<= ULTIMATE.start_main_~i~5 22), 57567#(<= ULTIMATE.start_main_~i~5 23), 57568#(<= ULTIMATE.start_main_~i~5 24), 57569#(<= ULTIMATE.start_main_~i~5 25), 57570#(<= ULTIMATE.start_main_~i~5 26), 57571#(<= ULTIMATE.start_main_~i~5 27), 57572#(<= ULTIMATE.start_main_~i~5 28), 57573#(<= ULTIMATE.start_main_~i~5 29), 57574#(<= ULTIMATE.start_main_~i~5 30), 57575#(<= ULTIMATE.start_main_~i~5 31), 57576#(<= ULTIMATE.start_main_~i~5 32), 57577#(<= ULTIMATE.start_main_~i~5 33), 57578#(<= ULTIMATE.start_main_~i~5 34), 57579#(<= ULTIMATE.start_main_~i~5 35), 57580#(<= ULTIMATE.start_main_~i~5 36), 57581#(<= ULTIMATE.start_main_~i~5 37), 57582#(<= ULTIMATE.start_main_~i~5 38), 57583#(<= ULTIMATE.start_main_~i~5 39), 57584#(<= ULTIMATE.start_main_~i~5 40), 57585#(<= ULTIMATE.start_main_~i~5 41), 57586#(<= ULTIMATE.start_main_~i~5 42), 57587#(<= ULTIMATE.start_main_~i~5 43), 57588#(<= ULTIMATE.start_main_~i~5 44), 57589#(<= ULTIMATE.start_main_~i~5 45), 57590#(<= ULTIMATE.start_main_~i~5 46), 57591#(<= ULTIMATE.start_main_~i~5 47), 57592#(<= ULTIMATE.start_main_~i~5 48), 57593#(<= ULTIMATE.start_main_~i~5 49), 57594#(<= ULTIMATE.start_main_~i~5 50), 57595#(<= ULTIMATE.start_main_~i~5 51), 57596#(<= ULTIMATE.start_main_~i~5 52), 57597#(<= ULTIMATE.start_main_~i~5 53), 57598#(<= ULTIMATE.start_main_~i~5 54), 57599#(<= ULTIMATE.start_main_~i~5 55)] [2018-07-23 13:41:28,663 INFO L134 CoverageAnalysis]: Checked inductivity of 4620 backedges. 3080 proven. 1540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:28,664 INFO L450 AbstractCegarLoop]: Interpolant automaton has 114 states [2018-07-23 13:41:28,664 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 114 interpolants. [2018-07-23 13:41:28,665 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3305, Invalid=9577, Unknown=0, NotChecked=0, Total=12882 [2018-07-23 13:41:28,665 INFO L87 Difference]: Start difference. First operand 171 states and 172 transitions. Second operand 114 states. [2018-07-23 13:41:29,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:29,419 INFO L93 Difference]: Finished difference Result 287 states and 289 transitions. [2018-07-23 13:41:29,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2018-07-23 13:41:29,419 INFO L78 Accepts]: Start accepts. Automaton has 114 states. Word has length 170 [2018-07-23 13:41:29,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:29,420 INFO L225 Difference]: With dead ends: 287 [2018-07-23 13:41:29,420 INFO L226 Difference]: Without dead ends: 172 [2018-07-23 13:41:29,421 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4565 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6609, Invalid=22121, Unknown=0, NotChecked=0, Total=28730 [2018-07-23 13:41:29,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2018-07-23 13:41:29,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2018-07-23 13:41:29,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2018-07-23 13:41:29,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 173 transitions. [2018-07-23 13:41:29,441 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 173 transitions. Word has length 170 [2018-07-23 13:41:29,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:29,442 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 173 transitions. [2018-07-23 13:41:29,442 INFO L472 AbstractCegarLoop]: Interpolant automaton has 114 states. [2018-07-23 13:41:29,442 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 173 transitions. [2018-07-23 13:41:29,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2018-07-23 13:41:29,442 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:29,442 INFO L357 BasicCegarLoop]: trace histogram [56, 56, 55, 1, 1, 1, 1] [2018-07-23 13:41:29,442 INFO L414 AbstractCegarLoop]: === Iteration 112 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:29,442 INFO L82 PathProgramCache]: Analyzing trace with hash -1330395565, now seen corresponding path program 110 times [2018-07-23 13:41:29,443 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:29,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:29,607 INFO L134 CoverageAnalysis]: Checked inductivity of 4676 backedges. 1596 proven. 3080 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:29,608 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:29,608 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [59] total 59 [2018-07-23 13:41:29,608 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:29,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:29,608 INFO L185 omatonBuilderFactory]: Interpolants [58686#true, 58687#false, 58688#(<= 0 ULTIMATE.start_main_~k~5), 58689#(<= 1 ULTIMATE.start_main_~k~5), 58690#(<= 2 ULTIMATE.start_main_~k~5), 58691#(<= 3 ULTIMATE.start_main_~k~5), 58692#(<= 4 ULTIMATE.start_main_~k~5), 58693#(<= 5 ULTIMATE.start_main_~k~5), 58694#(<= 6 ULTIMATE.start_main_~k~5), 58695#(<= 7 ULTIMATE.start_main_~k~5), 58696#(<= 8 ULTIMATE.start_main_~k~5), 58697#(<= 9 ULTIMATE.start_main_~k~5), 58698#(<= 10 ULTIMATE.start_main_~k~5), 58699#(<= 11 ULTIMATE.start_main_~k~5), 58700#(<= 12 ULTIMATE.start_main_~k~5), 58701#(<= 13 ULTIMATE.start_main_~k~5), 58702#(<= 14 ULTIMATE.start_main_~k~5), 58703#(<= 15 ULTIMATE.start_main_~k~5), 58704#(<= 16 ULTIMATE.start_main_~k~5), 58705#(<= 17 ULTIMATE.start_main_~k~5), 58706#(<= 18 ULTIMATE.start_main_~k~5), 58707#(<= 19 ULTIMATE.start_main_~k~5), 58708#(<= 20 ULTIMATE.start_main_~k~5), 58709#(<= 21 ULTIMATE.start_main_~k~5), 58710#(<= 22 ULTIMATE.start_main_~k~5), 58711#(<= 23 ULTIMATE.start_main_~k~5), 58712#(<= 24 ULTIMATE.start_main_~k~5), 58713#(<= 25 ULTIMATE.start_main_~k~5), 58714#(<= 26 ULTIMATE.start_main_~k~5), 58715#(<= 27 ULTIMATE.start_main_~k~5), 58716#(<= 28 ULTIMATE.start_main_~k~5), 58717#(<= 29 ULTIMATE.start_main_~k~5), 58718#(<= 30 ULTIMATE.start_main_~k~5), 58719#(<= 31 ULTIMATE.start_main_~k~5), 58720#(<= 32 ULTIMATE.start_main_~k~5), 58721#(<= 33 ULTIMATE.start_main_~k~5), 58722#(<= 34 ULTIMATE.start_main_~k~5), 58723#(<= 35 ULTIMATE.start_main_~k~5), 58724#(<= 36 ULTIMATE.start_main_~k~5), 58725#(<= 37 ULTIMATE.start_main_~k~5), 58726#(<= 38 ULTIMATE.start_main_~k~5), 58727#(<= 39 ULTIMATE.start_main_~k~5), 58728#(<= 40 ULTIMATE.start_main_~k~5), 58729#(<= 41 ULTIMATE.start_main_~k~5), 58730#(<= 42 ULTIMATE.start_main_~k~5), 58731#(<= 43 ULTIMATE.start_main_~k~5), 58732#(<= 44 ULTIMATE.start_main_~k~5), 58733#(<= 45 ULTIMATE.start_main_~k~5), 58734#(<= 46 ULTIMATE.start_main_~k~5), 58735#(<= 47 ULTIMATE.start_main_~k~5), 58736#(<= 48 ULTIMATE.start_main_~k~5), 58737#(<= 49 ULTIMATE.start_main_~k~5), 58738#(<= 50 ULTIMATE.start_main_~k~5), 58739#(<= 51 ULTIMATE.start_main_~k~5), 58740#(<= 52 ULTIMATE.start_main_~k~5), 58741#(<= 53 ULTIMATE.start_main_~k~5), 58742#(<= 54 ULTIMATE.start_main_~k~5), 58743#(<= 55 ULTIMATE.start_main_~k~5), 58744#(<= 56 ULTIMATE.start_main_~k~5), 58745#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond)] [2018-07-23 13:41:29,609 INFO L134 CoverageAnalysis]: Checked inductivity of 4676 backedges. 1596 proven. 3080 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:29,609 INFO L450 AbstractCegarLoop]: Interpolant automaton has 60 states [2018-07-23 13:41:29,609 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2018-07-23 13:41:29,609 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1713, Invalid=1827, Unknown=0, NotChecked=0, Total=3540 [2018-07-23 13:41:29,610 INFO L87 Difference]: Start difference. First operand 172 states and 173 transitions. Second operand 60 states. [2018-07-23 13:41:29,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:29,753 INFO L93 Difference]: Finished difference Result 180 states and 181 transitions. [2018-07-23 13:41:29,753 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2018-07-23 13:41:29,753 INFO L78 Accepts]: Start accepts. Automaton has 60 states. Word has length 171 [2018-07-23 13:41:29,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:29,753 INFO L225 Difference]: With dead ends: 180 [2018-07-23 13:41:29,753 INFO L226 Difference]: Without dead ends: 178 [2018-07-23 13:41:29,754 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3192 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5133, Invalid=8439, Unknown=0, NotChecked=0, Total=13572 [2018-07-23 13:41:29,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2018-07-23 13:41:29,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 174. [2018-07-23 13:41:29,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2018-07-23 13:41:29,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 175 transitions. [2018-07-23 13:41:29,775 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 175 transitions. Word has length 171 [2018-07-23 13:41:29,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:29,775 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 175 transitions. [2018-07-23 13:41:29,775 INFO L472 AbstractCegarLoop]: Interpolant automaton has 60 states. [2018-07-23 13:41:29,775 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 175 transitions. [2018-07-23 13:41:29,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2018-07-23 13:41:29,776 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:29,776 INFO L357 BasicCegarLoop]: trace histogram [57, 56, 56, 1, 1, 1, 1] [2018-07-23 13:41:29,776 INFO L414 AbstractCegarLoop]: === Iteration 113 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:29,776 INFO L82 PathProgramCache]: Analyzing trace with hash 1390182267, now seen corresponding path program 111 times [2018-07-23 13:41:29,776 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:29,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:30,048 INFO L134 CoverageAnalysis]: Checked inductivity of 4788 backedges. 3192 proven. 1596 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:30,049 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:30,049 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [115] total 115 [2018-07-23 13:41:30,049 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:30,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:30,050 INFO L185 omatonBuilderFactory]: Interpolants [59648#(<= ULTIMATE.start_main_~j~5 35), 59649#(<= ULTIMATE.start_main_~j~5 34), 59650#(<= ULTIMATE.start_main_~j~5 33), 59651#(<= ULTIMATE.start_main_~j~5 32), 59652#(<= ULTIMATE.start_main_~j~5 31), 59653#(<= ULTIMATE.start_main_~j~5 30), 59654#(<= ULTIMATE.start_main_~j~5 29), 59655#(<= ULTIMATE.start_main_~j~5 28), 59656#(<= ULTIMATE.start_main_~j~5 27), 59657#(<= ULTIMATE.start_main_~j~5 26), 59658#(<= ULTIMATE.start_main_~j~5 25), 59659#(<= ULTIMATE.start_main_~j~5 24), 59660#(<= ULTIMATE.start_main_~j~5 23), 59661#(<= ULTIMATE.start_main_~j~5 22), 59662#(<= ULTIMATE.start_main_~j~5 21), 59663#(<= ULTIMATE.start_main_~j~5 20), 59664#(<= ULTIMATE.start_main_~j~5 19), 59665#(<= ULTIMATE.start_main_~j~5 18), 59666#(<= ULTIMATE.start_main_~j~5 17), 59667#(<= ULTIMATE.start_main_~j~5 16), 59668#(<= ULTIMATE.start_main_~j~5 15), 59669#(<= ULTIMATE.start_main_~j~5 14), 59670#(<= ULTIMATE.start_main_~j~5 13), 59671#(<= ULTIMATE.start_main_~j~5 12), 59672#(<= ULTIMATE.start_main_~j~5 11), 59673#(<= ULTIMATE.start_main_~j~5 10), 59674#(<= ULTIMATE.start_main_~j~5 9), 59675#(<= ULTIMATE.start_main_~j~5 8), 59676#(<= ULTIMATE.start_main_~j~5 7), 59677#(<= ULTIMATE.start_main_~j~5 6), 59678#(<= ULTIMATE.start_main_~j~5 5), 59679#(<= ULTIMATE.start_main_~j~5 4), 59680#(<= ULTIMATE.start_main_~j~5 3), 59681#(<= ULTIMATE.start_main_~j~5 2), 59682#(<= ULTIMATE.start_main_~j~5 1), 59683#(<= ULTIMATE.start_main_~j~5 0), 59568#true, 59569#false, 59570#(<= ULTIMATE.start_main_~i~5 0), 59571#(<= ULTIMATE.start_main_~i~5 1), 59572#(<= ULTIMATE.start_main_~i~5 2), 59573#(<= ULTIMATE.start_main_~i~5 3), 59574#(<= ULTIMATE.start_main_~i~5 4), 59575#(<= ULTIMATE.start_main_~i~5 5), 59576#(<= ULTIMATE.start_main_~i~5 6), 59577#(<= ULTIMATE.start_main_~i~5 7), 59578#(<= ULTIMATE.start_main_~i~5 8), 59579#(<= ULTIMATE.start_main_~i~5 9), 59580#(<= ULTIMATE.start_main_~i~5 10), 59581#(<= ULTIMATE.start_main_~i~5 11), 59582#(<= ULTIMATE.start_main_~i~5 12), 59583#(<= ULTIMATE.start_main_~i~5 13), 59584#(<= ULTIMATE.start_main_~i~5 14), 59585#(<= ULTIMATE.start_main_~i~5 15), 59586#(<= ULTIMATE.start_main_~i~5 16), 59587#(<= ULTIMATE.start_main_~i~5 17), 59588#(<= ULTIMATE.start_main_~i~5 18), 59589#(<= ULTIMATE.start_main_~i~5 19), 59590#(<= ULTIMATE.start_main_~i~5 20), 59591#(<= ULTIMATE.start_main_~i~5 21), 59592#(<= ULTIMATE.start_main_~i~5 22), 59593#(<= ULTIMATE.start_main_~i~5 23), 59594#(<= ULTIMATE.start_main_~i~5 24), 59595#(<= ULTIMATE.start_main_~i~5 25), 59596#(<= ULTIMATE.start_main_~i~5 26), 59597#(<= ULTIMATE.start_main_~i~5 27), 59598#(<= ULTIMATE.start_main_~i~5 28), 59599#(<= ULTIMATE.start_main_~i~5 29), 59600#(<= ULTIMATE.start_main_~i~5 30), 59601#(<= ULTIMATE.start_main_~i~5 31), 59602#(<= ULTIMATE.start_main_~i~5 32), 59603#(<= ULTIMATE.start_main_~i~5 33), 59604#(<= ULTIMATE.start_main_~i~5 34), 59605#(<= ULTIMATE.start_main_~i~5 35), 59606#(<= ULTIMATE.start_main_~i~5 36), 59607#(<= ULTIMATE.start_main_~i~5 37), 59608#(<= ULTIMATE.start_main_~i~5 38), 59609#(<= ULTIMATE.start_main_~i~5 39), 59610#(<= ULTIMATE.start_main_~i~5 40), 59611#(<= ULTIMATE.start_main_~i~5 41), 59612#(<= ULTIMATE.start_main_~i~5 42), 59613#(<= ULTIMATE.start_main_~i~5 43), 59614#(<= ULTIMATE.start_main_~i~5 44), 59615#(<= ULTIMATE.start_main_~i~5 45), 59616#(<= ULTIMATE.start_main_~i~5 46), 59617#(<= ULTIMATE.start_main_~i~5 47), 59618#(<= ULTIMATE.start_main_~i~5 48), 59619#(<= ULTIMATE.start_main_~i~5 49), 59620#(<= ULTIMATE.start_main_~i~5 50), 59621#(<= ULTIMATE.start_main_~i~5 51), 59622#(<= ULTIMATE.start_main_~i~5 52), 59623#(<= ULTIMATE.start_main_~i~5 53), 59624#(<= ULTIMATE.start_main_~i~5 54), 59625#(<= ULTIMATE.start_main_~i~5 55), 59626#(<= ULTIMATE.start_main_~i~5 56), 59627#(<= ULTIMATE.start_main_~j~5 56), 59628#(<= ULTIMATE.start_main_~j~5 55), 59629#(<= ULTIMATE.start_main_~j~5 54), 59630#(<= ULTIMATE.start_main_~j~5 53), 59631#(<= ULTIMATE.start_main_~j~5 52), 59632#(<= ULTIMATE.start_main_~j~5 51), 59633#(<= ULTIMATE.start_main_~j~5 50), 59634#(<= ULTIMATE.start_main_~j~5 49), 59635#(<= ULTIMATE.start_main_~j~5 48), 59636#(<= ULTIMATE.start_main_~j~5 47), 59637#(<= ULTIMATE.start_main_~j~5 46), 59638#(<= ULTIMATE.start_main_~j~5 45), 59639#(<= ULTIMATE.start_main_~j~5 44), 59640#(<= ULTIMATE.start_main_~j~5 43), 59641#(<= ULTIMATE.start_main_~j~5 42), 59642#(<= ULTIMATE.start_main_~j~5 41), 59643#(<= ULTIMATE.start_main_~j~5 40), 59644#(<= ULTIMATE.start_main_~j~5 39), 59645#(<= ULTIMATE.start_main_~j~5 38), 59646#(<= ULTIMATE.start_main_~j~5 37), 59647#(<= ULTIMATE.start_main_~j~5 36)] [2018-07-23 13:41:30,050 INFO L134 CoverageAnalysis]: Checked inductivity of 4788 backedges. 3192 proven. 1596 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:30,050 INFO L450 AbstractCegarLoop]: Interpolant automaton has 116 states [2018-07-23 13:41:30,050 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 116 interpolants. [2018-07-23 13:41:30,051 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3421, Invalid=9919, Unknown=0, NotChecked=0, Total=13340 [2018-07-23 13:41:30,051 INFO L87 Difference]: Start difference. First operand 174 states and 175 transitions. Second operand 116 states. [2018-07-23 13:41:30,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:30,926 INFO L93 Difference]: Finished difference Result 292 states and 294 transitions. [2018-07-23 13:41:30,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2018-07-23 13:41:30,926 INFO L78 Accepts]: Start accepts. Automaton has 116 states. Word has length 173 [2018-07-23 13:41:30,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:30,927 INFO L225 Difference]: With dead ends: 292 [2018-07-23 13:41:30,927 INFO L226 Difference]: Without dead ends: 175 [2018-07-23 13:41:30,929 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 171 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4732 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6841, Invalid=22915, Unknown=0, NotChecked=0, Total=29756 [2018-07-23 13:41:30,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2018-07-23 13:41:30,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2018-07-23 13:41:30,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2018-07-23 13:41:30,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 176 transitions. [2018-07-23 13:41:30,946 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 176 transitions. Word has length 173 [2018-07-23 13:41:30,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:30,946 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 176 transitions. [2018-07-23 13:41:30,946 INFO L472 AbstractCegarLoop]: Interpolant automaton has 116 states. [2018-07-23 13:41:30,946 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 176 transitions. [2018-07-23 13:41:30,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2018-07-23 13:41:30,946 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:30,947 INFO L357 BasicCegarLoop]: trace histogram [57, 57, 56, 1, 1, 1, 1] [2018-07-23 13:41:30,947 INFO L414 AbstractCegarLoop]: === Iteration 114 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:30,947 INFO L82 PathProgramCache]: Analyzing trace with hash -1161202526, now seen corresponding path program 112 times [2018-07-23 13:41:30,947 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:31,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:31,190 INFO L134 CoverageAnalysis]: Checked inductivity of 4845 backedges. 1653 proven. 3192 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:31,191 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:31,191 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [60] total 60 [2018-07-23 13:41:31,191 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:31,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:31,192 INFO L185 omatonBuilderFactory]: Interpolants [60732#true, 60733#false, 60734#(<= 0 ULTIMATE.start_main_~k~5), 60735#(<= 1 ULTIMATE.start_main_~k~5), 60736#(<= 2 ULTIMATE.start_main_~k~5), 60737#(<= 3 ULTIMATE.start_main_~k~5), 60738#(<= 4 ULTIMATE.start_main_~k~5), 60739#(<= 5 ULTIMATE.start_main_~k~5), 60740#(<= 6 ULTIMATE.start_main_~k~5), 60741#(<= 7 ULTIMATE.start_main_~k~5), 60742#(<= 8 ULTIMATE.start_main_~k~5), 60743#(<= 9 ULTIMATE.start_main_~k~5), 60744#(<= 10 ULTIMATE.start_main_~k~5), 60745#(<= 11 ULTIMATE.start_main_~k~5), 60746#(<= 12 ULTIMATE.start_main_~k~5), 60747#(<= 13 ULTIMATE.start_main_~k~5), 60748#(<= 14 ULTIMATE.start_main_~k~5), 60749#(<= 15 ULTIMATE.start_main_~k~5), 60750#(<= 16 ULTIMATE.start_main_~k~5), 60751#(<= 17 ULTIMATE.start_main_~k~5), 60752#(<= 18 ULTIMATE.start_main_~k~5), 60753#(<= 19 ULTIMATE.start_main_~k~5), 60754#(<= 20 ULTIMATE.start_main_~k~5), 60755#(<= 21 ULTIMATE.start_main_~k~5), 60756#(<= 22 ULTIMATE.start_main_~k~5), 60757#(<= 23 ULTIMATE.start_main_~k~5), 60758#(<= 24 ULTIMATE.start_main_~k~5), 60759#(<= 25 ULTIMATE.start_main_~k~5), 60760#(<= 26 ULTIMATE.start_main_~k~5), 60761#(<= 27 ULTIMATE.start_main_~k~5), 60762#(<= 28 ULTIMATE.start_main_~k~5), 60763#(<= 29 ULTIMATE.start_main_~k~5), 60764#(<= 30 ULTIMATE.start_main_~k~5), 60765#(<= 31 ULTIMATE.start_main_~k~5), 60766#(<= 32 ULTIMATE.start_main_~k~5), 60767#(<= 33 ULTIMATE.start_main_~k~5), 60768#(<= 34 ULTIMATE.start_main_~k~5), 60769#(<= 35 ULTIMATE.start_main_~k~5), 60770#(<= 36 ULTIMATE.start_main_~k~5), 60771#(<= 37 ULTIMATE.start_main_~k~5), 60772#(<= 38 ULTIMATE.start_main_~k~5), 60773#(<= 39 ULTIMATE.start_main_~k~5), 60774#(<= 40 ULTIMATE.start_main_~k~5), 60775#(<= 41 ULTIMATE.start_main_~k~5), 60776#(<= 42 ULTIMATE.start_main_~k~5), 60777#(<= 43 ULTIMATE.start_main_~k~5), 60778#(<= 44 ULTIMATE.start_main_~k~5), 60779#(<= 45 ULTIMATE.start_main_~k~5), 60780#(<= 46 ULTIMATE.start_main_~k~5), 60781#(<= 47 ULTIMATE.start_main_~k~5), 60782#(<= 48 ULTIMATE.start_main_~k~5), 60783#(<= 49 ULTIMATE.start_main_~k~5), 60784#(<= 50 ULTIMATE.start_main_~k~5), 60785#(<= 51 ULTIMATE.start_main_~k~5), 60786#(<= 52 ULTIMATE.start_main_~k~5), 60787#(<= 53 ULTIMATE.start_main_~k~5), 60788#(<= 54 ULTIMATE.start_main_~k~5), 60789#(<= 55 ULTIMATE.start_main_~k~5), 60790#(<= 56 ULTIMATE.start_main_~k~5), 60791#(<= 57 ULTIMATE.start_main_~k~5), 60792#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond)] [2018-07-23 13:41:31,192 INFO L134 CoverageAnalysis]: Checked inductivity of 4845 backedges. 1653 proven. 3192 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:31,192 INFO L450 AbstractCegarLoop]: Interpolant automaton has 61 states [2018-07-23 13:41:31,193 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2018-07-23 13:41:31,193 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1772, Invalid=1888, Unknown=0, NotChecked=0, Total=3660 [2018-07-23 13:41:31,193 INFO L87 Difference]: Start difference. First operand 175 states and 176 transitions. Second operand 61 states. [2018-07-23 13:41:31,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:31,406 INFO L93 Difference]: Finished difference Result 183 states and 184 transitions. [2018-07-23 13:41:31,406 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2018-07-23 13:41:31,406 INFO L78 Accepts]: Start accepts. Automaton has 61 states. Word has length 174 [2018-07-23 13:41:31,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:31,407 INFO L225 Difference]: With dead ends: 183 [2018-07-23 13:41:31,407 INFO L226 Difference]: Without dead ends: 181 [2018-07-23 13:41:31,409 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3306 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5310, Invalid=8732, Unknown=0, NotChecked=0, Total=14042 [2018-07-23 13:41:31,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2018-07-23 13:41:31,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 177. [2018-07-23 13:41:31,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2018-07-23 13:41:31,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 178 transitions. [2018-07-23 13:41:31,432 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 178 transitions. Word has length 174 [2018-07-23 13:41:31,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:31,433 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 178 transitions. [2018-07-23 13:41:31,433 INFO L472 AbstractCegarLoop]: Interpolant automaton has 61 states. [2018-07-23 13:41:31,433 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 178 transitions. [2018-07-23 13:41:31,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2018-07-23 13:41:31,434 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:31,434 INFO L357 BasicCegarLoop]: trace histogram [58, 57, 57, 1, 1, 1, 1] [2018-07-23 13:41:31,434 INFO L414 AbstractCegarLoop]: === Iteration 115 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:31,434 INFO L82 PathProgramCache]: Analyzing trace with hash 775935498, now seen corresponding path program 113 times [2018-07-23 13:41:31,434 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:31,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:31,790 INFO L134 CoverageAnalysis]: Checked inductivity of 4959 backedges. 3306 proven. 1653 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:31,790 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:31,790 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [117] total 117 [2018-07-23 13:41:31,790 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:31,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:31,791 INFO L185 omatonBuilderFactory]: Interpolants [61696#(<= ULTIMATE.start_main_~j~5 50), 61697#(<= ULTIMATE.start_main_~j~5 49), 61698#(<= ULTIMATE.start_main_~j~5 48), 61699#(<= ULTIMATE.start_main_~j~5 47), 61700#(<= ULTIMATE.start_main_~j~5 46), 61701#(<= ULTIMATE.start_main_~j~5 45), 61702#(<= ULTIMATE.start_main_~j~5 44), 61703#(<= ULTIMATE.start_main_~j~5 43), 61704#(<= ULTIMATE.start_main_~j~5 42), 61705#(<= ULTIMATE.start_main_~j~5 41), 61706#(<= ULTIMATE.start_main_~j~5 40), 61707#(<= ULTIMATE.start_main_~j~5 39), 61708#(<= ULTIMATE.start_main_~j~5 38), 61709#(<= ULTIMATE.start_main_~j~5 37), 61710#(<= ULTIMATE.start_main_~j~5 36), 61711#(<= ULTIMATE.start_main_~j~5 35), 61712#(<= ULTIMATE.start_main_~j~5 34), 61713#(<= ULTIMATE.start_main_~j~5 33), 61714#(<= ULTIMATE.start_main_~j~5 32), 61715#(<= ULTIMATE.start_main_~j~5 31), 61716#(<= ULTIMATE.start_main_~j~5 30), 61717#(<= ULTIMATE.start_main_~j~5 29), 61718#(<= ULTIMATE.start_main_~j~5 28), 61719#(<= ULTIMATE.start_main_~j~5 27), 61720#(<= ULTIMATE.start_main_~j~5 26), 61721#(<= ULTIMATE.start_main_~j~5 25), 61722#(<= ULTIMATE.start_main_~j~5 24), 61723#(<= ULTIMATE.start_main_~j~5 23), 61724#(<= ULTIMATE.start_main_~j~5 22), 61725#(<= ULTIMATE.start_main_~j~5 21), 61726#(<= ULTIMATE.start_main_~j~5 20), 61727#(<= ULTIMATE.start_main_~j~5 19), 61728#(<= ULTIMATE.start_main_~j~5 18), 61729#(<= ULTIMATE.start_main_~j~5 17), 61730#(<= ULTIMATE.start_main_~j~5 16), 61731#(<= ULTIMATE.start_main_~j~5 15), 61732#(<= ULTIMATE.start_main_~j~5 14), 61733#(<= ULTIMATE.start_main_~j~5 13), 61734#(<= ULTIMATE.start_main_~j~5 12), 61735#(<= ULTIMATE.start_main_~j~5 11), 61736#(<= ULTIMATE.start_main_~j~5 10), 61737#(<= ULTIMATE.start_main_~j~5 9), 61738#(<= ULTIMATE.start_main_~j~5 8), 61739#(<= ULTIMATE.start_main_~j~5 7), 61740#(<= ULTIMATE.start_main_~j~5 6), 61741#(<= ULTIMATE.start_main_~j~5 5), 61742#(<= ULTIMATE.start_main_~j~5 4), 61743#(<= ULTIMATE.start_main_~j~5 3), 61744#(<= ULTIMATE.start_main_~j~5 2), 61745#(<= ULTIMATE.start_main_~j~5 1), 61746#(<= ULTIMATE.start_main_~j~5 0), 61629#true, 61630#false, 61631#(<= ULTIMATE.start_main_~i~5 0), 61632#(<= ULTIMATE.start_main_~i~5 1), 61633#(<= ULTIMATE.start_main_~i~5 2), 61634#(<= ULTIMATE.start_main_~i~5 3), 61635#(<= ULTIMATE.start_main_~i~5 4), 61636#(<= ULTIMATE.start_main_~i~5 5), 61637#(<= ULTIMATE.start_main_~i~5 6), 61638#(<= ULTIMATE.start_main_~i~5 7), 61639#(<= ULTIMATE.start_main_~i~5 8), 61640#(<= ULTIMATE.start_main_~i~5 9), 61641#(<= ULTIMATE.start_main_~i~5 10), 61642#(<= ULTIMATE.start_main_~i~5 11), 61643#(<= ULTIMATE.start_main_~i~5 12), 61644#(<= ULTIMATE.start_main_~i~5 13), 61645#(<= ULTIMATE.start_main_~i~5 14), 61646#(<= ULTIMATE.start_main_~i~5 15), 61647#(<= ULTIMATE.start_main_~i~5 16), 61648#(<= ULTIMATE.start_main_~i~5 17), 61649#(<= ULTIMATE.start_main_~i~5 18), 61650#(<= ULTIMATE.start_main_~i~5 19), 61651#(<= ULTIMATE.start_main_~i~5 20), 61652#(<= ULTIMATE.start_main_~i~5 21), 61653#(<= ULTIMATE.start_main_~i~5 22), 61654#(<= ULTIMATE.start_main_~i~5 23), 61655#(<= ULTIMATE.start_main_~i~5 24), 61656#(<= ULTIMATE.start_main_~i~5 25), 61657#(<= ULTIMATE.start_main_~i~5 26), 61658#(<= ULTIMATE.start_main_~i~5 27), 61659#(<= ULTIMATE.start_main_~i~5 28), 61660#(<= ULTIMATE.start_main_~i~5 29), 61661#(<= ULTIMATE.start_main_~i~5 30), 61662#(<= ULTIMATE.start_main_~i~5 31), 61663#(<= ULTIMATE.start_main_~i~5 32), 61664#(<= ULTIMATE.start_main_~i~5 33), 61665#(<= ULTIMATE.start_main_~i~5 34), 61666#(<= ULTIMATE.start_main_~i~5 35), 61667#(<= ULTIMATE.start_main_~i~5 36), 61668#(<= ULTIMATE.start_main_~i~5 37), 61669#(<= ULTIMATE.start_main_~i~5 38), 61670#(<= ULTIMATE.start_main_~i~5 39), 61671#(<= ULTIMATE.start_main_~i~5 40), 61672#(<= ULTIMATE.start_main_~i~5 41), 61673#(<= ULTIMATE.start_main_~i~5 42), 61674#(<= ULTIMATE.start_main_~i~5 43), 61675#(<= ULTIMATE.start_main_~i~5 44), 61676#(<= ULTIMATE.start_main_~i~5 45), 61677#(<= ULTIMATE.start_main_~i~5 46), 61678#(<= ULTIMATE.start_main_~i~5 47), 61679#(<= ULTIMATE.start_main_~i~5 48), 61680#(<= ULTIMATE.start_main_~i~5 49), 61681#(<= ULTIMATE.start_main_~i~5 50), 61682#(<= ULTIMATE.start_main_~i~5 51), 61683#(<= ULTIMATE.start_main_~i~5 52), 61684#(<= ULTIMATE.start_main_~i~5 53), 61685#(<= ULTIMATE.start_main_~i~5 54), 61686#(<= ULTIMATE.start_main_~i~5 55), 61687#(<= ULTIMATE.start_main_~i~5 56), 61688#(<= ULTIMATE.start_main_~i~5 57), 61689#(<= ULTIMATE.start_main_~j~5 57), 61690#(<= ULTIMATE.start_main_~j~5 56), 61691#(<= ULTIMATE.start_main_~j~5 55), 61692#(<= ULTIMATE.start_main_~j~5 54), 61693#(<= ULTIMATE.start_main_~j~5 53), 61694#(<= ULTIMATE.start_main_~j~5 52), 61695#(<= ULTIMATE.start_main_~j~5 51)] [2018-07-23 13:41:31,792 INFO L134 CoverageAnalysis]: Checked inductivity of 4959 backedges. 3306 proven. 1653 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:31,792 INFO L450 AbstractCegarLoop]: Interpolant automaton has 118 states [2018-07-23 13:41:31,793 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 118 interpolants. [2018-07-23 13:41:31,794 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3539, Invalid=10267, Unknown=0, NotChecked=0, Total=13806 [2018-07-23 13:41:31,794 INFO L87 Difference]: Start difference. First operand 177 states and 178 transitions. Second operand 118 states. [2018-07-23 13:41:32,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:32,636 INFO L93 Difference]: Finished difference Result 297 states and 299 transitions. [2018-07-23 13:41:32,637 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2018-07-23 13:41:32,637 INFO L78 Accepts]: Start accepts. Automaton has 118 states. Word has length 176 [2018-07-23 13:41:32,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:32,637 INFO L225 Difference]: With dead ends: 297 [2018-07-23 13:41:32,638 INFO L226 Difference]: Without dead ends: 178 [2018-07-23 13:41:32,639 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 174 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4902 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=7077, Invalid=23723, Unknown=0, NotChecked=0, Total=30800 [2018-07-23 13:41:32,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2018-07-23 13:41:32,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2018-07-23 13:41:32,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2018-07-23 13:41:32,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 179 transitions. [2018-07-23 13:41:32,654 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 179 transitions. Word has length 176 [2018-07-23 13:41:32,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:32,655 INFO L471 AbstractCegarLoop]: Abstraction has 178 states and 179 transitions. [2018-07-23 13:41:32,655 INFO L472 AbstractCegarLoop]: Interpolant automaton has 118 states. [2018-07-23 13:41:32,655 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 179 transitions. [2018-07-23 13:41:32,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2018-07-23 13:41:32,655 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:32,655 INFO L357 BasicCegarLoop]: trace histogram [58, 58, 57, 1, 1, 1, 1] [2018-07-23 13:41:32,655 INFO L414 AbstractCegarLoop]: === Iteration 116 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:32,656 INFO L82 PathProgramCache]: Analyzing trace with hash 507804547, now seen corresponding path program 114 times [2018-07-23 13:41:32,656 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:32,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:32,829 INFO L134 CoverageAnalysis]: Checked inductivity of 5017 backedges. 1711 proven. 3306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:32,830 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:32,830 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [61] total 61 [2018-07-23 13:41:32,830 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:32,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:32,830 INFO L185 omatonBuilderFactory]: Interpolants [62848#(<= 33 ULTIMATE.start_main_~k~5), 62849#(<= 34 ULTIMATE.start_main_~k~5), 62850#(<= 35 ULTIMATE.start_main_~k~5), 62851#(<= 36 ULTIMATE.start_main_~k~5), 62852#(<= 37 ULTIMATE.start_main_~k~5), 62853#(<= 38 ULTIMATE.start_main_~k~5), 62854#(<= 39 ULTIMATE.start_main_~k~5), 62855#(<= 40 ULTIMATE.start_main_~k~5), 62856#(<= 41 ULTIMATE.start_main_~k~5), 62857#(<= 42 ULTIMATE.start_main_~k~5), 62858#(<= 43 ULTIMATE.start_main_~k~5), 62859#(<= 44 ULTIMATE.start_main_~k~5), 62860#(<= 45 ULTIMATE.start_main_~k~5), 62861#(<= 46 ULTIMATE.start_main_~k~5), 62862#(<= 47 ULTIMATE.start_main_~k~5), 62863#(<= 48 ULTIMATE.start_main_~k~5), 62864#(<= 49 ULTIMATE.start_main_~k~5), 62865#(<= 50 ULTIMATE.start_main_~k~5), 62866#(<= 51 ULTIMATE.start_main_~k~5), 62867#(<= 52 ULTIMATE.start_main_~k~5), 62868#(<= 53 ULTIMATE.start_main_~k~5), 62869#(<= 54 ULTIMATE.start_main_~k~5), 62870#(<= 55 ULTIMATE.start_main_~k~5), 62871#(<= 56 ULTIMATE.start_main_~k~5), 62872#(<= 57 ULTIMATE.start_main_~k~5), 62873#(<= 58 ULTIMATE.start_main_~k~5), 62874#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 62813#true, 62814#false, 62815#(<= 0 ULTIMATE.start_main_~k~5), 62816#(<= 1 ULTIMATE.start_main_~k~5), 62817#(<= 2 ULTIMATE.start_main_~k~5), 62818#(<= 3 ULTIMATE.start_main_~k~5), 62819#(<= 4 ULTIMATE.start_main_~k~5), 62820#(<= 5 ULTIMATE.start_main_~k~5), 62821#(<= 6 ULTIMATE.start_main_~k~5), 62822#(<= 7 ULTIMATE.start_main_~k~5), 62823#(<= 8 ULTIMATE.start_main_~k~5), 62824#(<= 9 ULTIMATE.start_main_~k~5), 62825#(<= 10 ULTIMATE.start_main_~k~5), 62826#(<= 11 ULTIMATE.start_main_~k~5), 62827#(<= 12 ULTIMATE.start_main_~k~5), 62828#(<= 13 ULTIMATE.start_main_~k~5), 62829#(<= 14 ULTIMATE.start_main_~k~5), 62830#(<= 15 ULTIMATE.start_main_~k~5), 62831#(<= 16 ULTIMATE.start_main_~k~5), 62832#(<= 17 ULTIMATE.start_main_~k~5), 62833#(<= 18 ULTIMATE.start_main_~k~5), 62834#(<= 19 ULTIMATE.start_main_~k~5), 62835#(<= 20 ULTIMATE.start_main_~k~5), 62836#(<= 21 ULTIMATE.start_main_~k~5), 62837#(<= 22 ULTIMATE.start_main_~k~5), 62838#(<= 23 ULTIMATE.start_main_~k~5), 62839#(<= 24 ULTIMATE.start_main_~k~5), 62840#(<= 25 ULTIMATE.start_main_~k~5), 62841#(<= 26 ULTIMATE.start_main_~k~5), 62842#(<= 27 ULTIMATE.start_main_~k~5), 62843#(<= 28 ULTIMATE.start_main_~k~5), 62844#(<= 29 ULTIMATE.start_main_~k~5), 62845#(<= 30 ULTIMATE.start_main_~k~5), 62846#(<= 31 ULTIMATE.start_main_~k~5), 62847#(<= 32 ULTIMATE.start_main_~k~5)] [2018-07-23 13:41:32,831 INFO L134 CoverageAnalysis]: Checked inductivity of 5017 backedges. 1711 proven. 3306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:32,831 INFO L450 AbstractCegarLoop]: Interpolant automaton has 62 states [2018-07-23 13:41:32,831 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2018-07-23 13:41:32,831 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1832, Invalid=1950, Unknown=0, NotChecked=0, Total=3782 [2018-07-23 13:41:32,831 INFO L87 Difference]: Start difference. First operand 178 states and 179 transitions. Second operand 62 states. [2018-07-23 13:41:32,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:32,985 INFO L93 Difference]: Finished difference Result 186 states and 187 transitions. [2018-07-23 13:41:32,985 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2018-07-23 13:41:32,985 INFO L78 Accepts]: Start accepts. Automaton has 62 states. Word has length 177 [2018-07-23 13:41:32,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:32,986 INFO L225 Difference]: With dead ends: 186 [2018-07-23 13:41:32,986 INFO L226 Difference]: Without dead ends: 184 [2018-07-23 13:41:32,986 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3422 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5490, Invalid=9030, Unknown=0, NotChecked=0, Total=14520 [2018-07-23 13:41:32,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2018-07-23 13:41:33,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 180. [2018-07-23 13:41:33,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2018-07-23 13:41:33,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 181 transitions. [2018-07-23 13:41:33,001 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 181 transitions. Word has length 177 [2018-07-23 13:41:33,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:33,001 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 181 transitions. [2018-07-23 13:41:33,002 INFO L472 AbstractCegarLoop]: Interpolant automaton has 62 states. [2018-07-23 13:41:33,002 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 181 transitions. [2018-07-23 13:41:33,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2018-07-23 13:41:33,002 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:33,002 INFO L357 BasicCegarLoop]: trace histogram [59, 58, 58, 1, 1, 1, 1] [2018-07-23 13:41:33,002 INFO L414 AbstractCegarLoop]: === Iteration 117 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:33,003 INFO L82 PathProgramCache]: Analyzing trace with hash -1626036053, now seen corresponding path program 115 times [2018-07-23 13:41:33,003 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:33,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:33,283 INFO L134 CoverageAnalysis]: Checked inductivity of 5133 backedges. 3422 proven. 1711 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:33,283 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:33,283 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [119] total 119 [2018-07-23 13:41:33,283 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:33,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:33,284 INFO L185 omatonBuilderFactory]: Interpolants [63744#(<= ULTIMATE.start_main_~i~5 17), 63745#(<= ULTIMATE.start_main_~i~5 18), 63746#(<= ULTIMATE.start_main_~i~5 19), 63747#(<= ULTIMATE.start_main_~i~5 20), 63748#(<= ULTIMATE.start_main_~i~5 21), 63749#(<= ULTIMATE.start_main_~i~5 22), 63750#(<= ULTIMATE.start_main_~i~5 23), 63751#(<= ULTIMATE.start_main_~i~5 24), 63752#(<= ULTIMATE.start_main_~i~5 25), 63753#(<= ULTIMATE.start_main_~i~5 26), 63754#(<= ULTIMATE.start_main_~i~5 27), 63755#(<= ULTIMATE.start_main_~i~5 28), 63756#(<= ULTIMATE.start_main_~i~5 29), 63757#(<= ULTIMATE.start_main_~i~5 30), 63758#(<= ULTIMATE.start_main_~i~5 31), 63759#(<= ULTIMATE.start_main_~i~5 32), 63760#(<= ULTIMATE.start_main_~i~5 33), 63761#(<= ULTIMATE.start_main_~i~5 34), 63762#(<= ULTIMATE.start_main_~i~5 35), 63763#(<= ULTIMATE.start_main_~i~5 36), 63764#(<= ULTIMATE.start_main_~i~5 37), 63765#(<= ULTIMATE.start_main_~i~5 38), 63766#(<= ULTIMATE.start_main_~i~5 39), 63767#(<= ULTIMATE.start_main_~i~5 40), 63768#(<= ULTIMATE.start_main_~i~5 41), 63769#(<= ULTIMATE.start_main_~i~5 42), 63770#(<= ULTIMATE.start_main_~i~5 43), 63771#(<= ULTIMATE.start_main_~i~5 44), 63772#(<= ULTIMATE.start_main_~i~5 45), 63773#(<= ULTIMATE.start_main_~i~5 46), 63774#(<= ULTIMATE.start_main_~i~5 47), 63775#(<= ULTIMATE.start_main_~i~5 48), 63776#(<= ULTIMATE.start_main_~i~5 49), 63777#(<= ULTIMATE.start_main_~i~5 50), 63778#(<= ULTIMATE.start_main_~i~5 51), 63779#(<= ULTIMATE.start_main_~i~5 52), 63780#(<= ULTIMATE.start_main_~i~5 53), 63781#(<= ULTIMATE.start_main_~i~5 54), 63782#(<= ULTIMATE.start_main_~i~5 55), 63783#(<= ULTIMATE.start_main_~i~5 56), 63784#(<= ULTIMATE.start_main_~i~5 57), 63785#(<= ULTIMATE.start_main_~i~5 58), 63786#(<= ULTIMATE.start_main_~j~5 58), 63787#(<= ULTIMATE.start_main_~j~5 57), 63788#(<= ULTIMATE.start_main_~j~5 56), 63789#(<= ULTIMATE.start_main_~j~5 55), 63790#(<= ULTIMATE.start_main_~j~5 54), 63791#(<= ULTIMATE.start_main_~j~5 53), 63792#(<= ULTIMATE.start_main_~j~5 52), 63793#(<= ULTIMATE.start_main_~j~5 51), 63794#(<= ULTIMATE.start_main_~j~5 50), 63795#(<= ULTIMATE.start_main_~j~5 49), 63796#(<= ULTIMATE.start_main_~j~5 48), 63797#(<= ULTIMATE.start_main_~j~5 47), 63798#(<= ULTIMATE.start_main_~j~5 46), 63799#(<= ULTIMATE.start_main_~j~5 45), 63800#(<= ULTIMATE.start_main_~j~5 44), 63801#(<= ULTIMATE.start_main_~j~5 43), 63802#(<= ULTIMATE.start_main_~j~5 42), 63803#(<= ULTIMATE.start_main_~j~5 41), 63804#(<= ULTIMATE.start_main_~j~5 40), 63805#(<= ULTIMATE.start_main_~j~5 39), 63806#(<= ULTIMATE.start_main_~j~5 38), 63807#(<= ULTIMATE.start_main_~j~5 37), 63808#(<= ULTIMATE.start_main_~j~5 36), 63809#(<= ULTIMATE.start_main_~j~5 35), 63810#(<= ULTIMATE.start_main_~j~5 34), 63811#(<= ULTIMATE.start_main_~j~5 33), 63812#(<= ULTIMATE.start_main_~j~5 32), 63813#(<= ULTIMATE.start_main_~j~5 31), 63814#(<= ULTIMATE.start_main_~j~5 30), 63815#(<= ULTIMATE.start_main_~j~5 29), 63816#(<= ULTIMATE.start_main_~j~5 28), 63817#(<= ULTIMATE.start_main_~j~5 27), 63818#(<= ULTIMATE.start_main_~j~5 26), 63819#(<= ULTIMATE.start_main_~j~5 25), 63820#(<= ULTIMATE.start_main_~j~5 24), 63821#(<= ULTIMATE.start_main_~j~5 23), 63822#(<= ULTIMATE.start_main_~j~5 22), 63823#(<= ULTIMATE.start_main_~j~5 21), 63824#(<= ULTIMATE.start_main_~j~5 20), 63825#(<= ULTIMATE.start_main_~j~5 19), 63826#(<= ULTIMATE.start_main_~j~5 18), 63827#(<= ULTIMATE.start_main_~j~5 17), 63828#(<= ULTIMATE.start_main_~j~5 16), 63829#(<= ULTIMATE.start_main_~j~5 15), 63830#(<= ULTIMATE.start_main_~j~5 14), 63831#(<= ULTIMATE.start_main_~j~5 13), 63832#(<= ULTIMATE.start_main_~j~5 12), 63833#(<= ULTIMATE.start_main_~j~5 11), 63834#(<= ULTIMATE.start_main_~j~5 10), 63835#(<= ULTIMATE.start_main_~j~5 9), 63836#(<= ULTIMATE.start_main_~j~5 8), 63837#(<= ULTIMATE.start_main_~j~5 7), 63838#(<= ULTIMATE.start_main_~j~5 6), 63839#(<= ULTIMATE.start_main_~j~5 5), 63840#(<= ULTIMATE.start_main_~j~5 4), 63841#(<= ULTIMATE.start_main_~j~5 3), 63842#(<= ULTIMATE.start_main_~j~5 2), 63843#(<= ULTIMATE.start_main_~j~5 1), 63844#(<= ULTIMATE.start_main_~j~5 0), 63725#true, 63726#false, 63727#(<= ULTIMATE.start_main_~i~5 0), 63728#(<= ULTIMATE.start_main_~i~5 1), 63729#(<= ULTIMATE.start_main_~i~5 2), 63730#(<= ULTIMATE.start_main_~i~5 3), 63731#(<= ULTIMATE.start_main_~i~5 4), 63732#(<= ULTIMATE.start_main_~i~5 5), 63733#(<= ULTIMATE.start_main_~i~5 6), 63734#(<= ULTIMATE.start_main_~i~5 7), 63735#(<= ULTIMATE.start_main_~i~5 8), 63736#(<= ULTIMATE.start_main_~i~5 9), 63737#(<= ULTIMATE.start_main_~i~5 10), 63738#(<= ULTIMATE.start_main_~i~5 11), 63739#(<= ULTIMATE.start_main_~i~5 12), 63740#(<= ULTIMATE.start_main_~i~5 13), 63741#(<= ULTIMATE.start_main_~i~5 14), 63742#(<= ULTIMATE.start_main_~i~5 15), 63743#(<= ULTIMATE.start_main_~i~5 16)] [2018-07-23 13:41:33,284 INFO L134 CoverageAnalysis]: Checked inductivity of 5133 backedges. 3422 proven. 1711 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:33,284 INFO L450 AbstractCegarLoop]: Interpolant automaton has 120 states [2018-07-23 13:41:33,285 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 120 interpolants. [2018-07-23 13:41:33,285 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3659, Invalid=10621, Unknown=0, NotChecked=0, Total=14280 [2018-07-23 13:41:33,285 INFO L87 Difference]: Start difference. First operand 180 states and 181 transitions. Second operand 120 states. [2018-07-23 13:41:34,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:34,072 INFO L93 Difference]: Finished difference Result 302 states and 304 transitions. [2018-07-23 13:41:34,072 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2018-07-23 13:41:34,072 INFO L78 Accepts]: Start accepts. Automaton has 120 states. Word has length 179 [2018-07-23 13:41:34,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:34,073 INFO L225 Difference]: With dead ends: 302 [2018-07-23 13:41:34,073 INFO L226 Difference]: Without dead ends: 181 [2018-07-23 13:41:34,076 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 177 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5075 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=7317, Invalid=24545, Unknown=0, NotChecked=0, Total=31862 [2018-07-23 13:41:34,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2018-07-23 13:41:34,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2018-07-23 13:41:34,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2018-07-23 13:41:34,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 182 transitions. [2018-07-23 13:41:34,094 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 182 transitions. Word has length 179 [2018-07-23 13:41:34,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:34,094 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 182 transitions. [2018-07-23 13:41:34,095 INFO L472 AbstractCegarLoop]: Interpolant automaton has 120 states. [2018-07-23 13:41:34,095 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 182 transitions. [2018-07-23 13:41:34,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2018-07-23 13:41:34,095 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:34,095 INFO L357 BasicCegarLoop]: trace histogram [59, 59, 58, 1, 1, 1, 1] [2018-07-23 13:41:34,095 INFO L414 AbstractCegarLoop]: === Iteration 118 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:34,096 INFO L82 PathProgramCache]: Analyzing trace with hash -876026734, now seen corresponding path program 116 times [2018-07-23 13:41:34,096 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:34,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:34,295 INFO L134 CoverageAnalysis]: Checked inductivity of 5192 backedges. 1770 proven. 3422 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:34,296 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:34,296 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [62] total 62 [2018-07-23 13:41:34,296 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:34,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:34,296 INFO L185 omatonBuilderFactory]: Interpolants [64929#true, 64930#false, 64931#(<= 0 ULTIMATE.start_main_~k~5), 64932#(<= 1 ULTIMATE.start_main_~k~5), 64933#(<= 2 ULTIMATE.start_main_~k~5), 64934#(<= 3 ULTIMATE.start_main_~k~5), 64935#(<= 4 ULTIMATE.start_main_~k~5), 64936#(<= 5 ULTIMATE.start_main_~k~5), 64937#(<= 6 ULTIMATE.start_main_~k~5), 64938#(<= 7 ULTIMATE.start_main_~k~5), 64939#(<= 8 ULTIMATE.start_main_~k~5), 64940#(<= 9 ULTIMATE.start_main_~k~5), 64941#(<= 10 ULTIMATE.start_main_~k~5), 64942#(<= 11 ULTIMATE.start_main_~k~5), 64943#(<= 12 ULTIMATE.start_main_~k~5), 64944#(<= 13 ULTIMATE.start_main_~k~5), 64945#(<= 14 ULTIMATE.start_main_~k~5), 64946#(<= 15 ULTIMATE.start_main_~k~5), 64947#(<= 16 ULTIMATE.start_main_~k~5), 64948#(<= 17 ULTIMATE.start_main_~k~5), 64949#(<= 18 ULTIMATE.start_main_~k~5), 64950#(<= 19 ULTIMATE.start_main_~k~5), 64951#(<= 20 ULTIMATE.start_main_~k~5), 64952#(<= 21 ULTIMATE.start_main_~k~5), 64953#(<= 22 ULTIMATE.start_main_~k~5), 64954#(<= 23 ULTIMATE.start_main_~k~5), 64955#(<= 24 ULTIMATE.start_main_~k~5), 64956#(<= 25 ULTIMATE.start_main_~k~5), 64957#(<= 26 ULTIMATE.start_main_~k~5), 64958#(<= 27 ULTIMATE.start_main_~k~5), 64959#(<= 28 ULTIMATE.start_main_~k~5), 64960#(<= 29 ULTIMATE.start_main_~k~5), 64961#(<= 30 ULTIMATE.start_main_~k~5), 64962#(<= 31 ULTIMATE.start_main_~k~5), 64963#(<= 32 ULTIMATE.start_main_~k~5), 64964#(<= 33 ULTIMATE.start_main_~k~5), 64965#(<= 34 ULTIMATE.start_main_~k~5), 64966#(<= 35 ULTIMATE.start_main_~k~5), 64967#(<= 36 ULTIMATE.start_main_~k~5), 64968#(<= 37 ULTIMATE.start_main_~k~5), 64969#(<= 38 ULTIMATE.start_main_~k~5), 64970#(<= 39 ULTIMATE.start_main_~k~5), 64971#(<= 40 ULTIMATE.start_main_~k~5), 64972#(<= 41 ULTIMATE.start_main_~k~5), 64973#(<= 42 ULTIMATE.start_main_~k~5), 64974#(<= 43 ULTIMATE.start_main_~k~5), 64975#(<= 44 ULTIMATE.start_main_~k~5), 64976#(<= 45 ULTIMATE.start_main_~k~5), 64977#(<= 46 ULTIMATE.start_main_~k~5), 64978#(<= 47 ULTIMATE.start_main_~k~5), 64979#(<= 48 ULTIMATE.start_main_~k~5), 64980#(<= 49 ULTIMATE.start_main_~k~5), 64981#(<= 50 ULTIMATE.start_main_~k~5), 64982#(<= 51 ULTIMATE.start_main_~k~5), 64983#(<= 52 ULTIMATE.start_main_~k~5), 64984#(<= 53 ULTIMATE.start_main_~k~5), 64985#(<= 54 ULTIMATE.start_main_~k~5), 64986#(<= 55 ULTIMATE.start_main_~k~5), 64987#(<= 56 ULTIMATE.start_main_~k~5), 64988#(<= 57 ULTIMATE.start_main_~k~5), 64989#(<= 58 ULTIMATE.start_main_~k~5), 64990#(<= 59 ULTIMATE.start_main_~k~5), 64991#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond)] [2018-07-23 13:41:34,297 INFO L134 CoverageAnalysis]: Checked inductivity of 5192 backedges. 1770 proven. 3422 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:34,297 INFO L450 AbstractCegarLoop]: Interpolant automaton has 63 states [2018-07-23 13:41:34,297 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2018-07-23 13:41:34,297 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1893, Invalid=2013, Unknown=0, NotChecked=0, Total=3906 [2018-07-23 13:41:34,297 INFO L87 Difference]: Start difference. First operand 181 states and 182 transitions. Second operand 63 states. [2018-07-23 13:41:34,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:34,457 INFO L93 Difference]: Finished difference Result 189 states and 190 transitions. [2018-07-23 13:41:34,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2018-07-23 13:41:34,458 INFO L78 Accepts]: Start accepts. Automaton has 63 states. Word has length 180 [2018-07-23 13:41:34,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:34,458 INFO L225 Difference]: With dead ends: 189 [2018-07-23 13:41:34,459 INFO L226 Difference]: Without dead ends: 187 [2018-07-23 13:41:34,460 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3540 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5673, Invalid=9333, Unknown=0, NotChecked=0, Total=15006 [2018-07-23 13:41:34,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2018-07-23 13:41:34,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 183. [2018-07-23 13:41:34,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2018-07-23 13:41:34,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 184 transitions. [2018-07-23 13:41:34,482 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 184 transitions. Word has length 180 [2018-07-23 13:41:34,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:34,482 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 184 transitions. [2018-07-23 13:41:34,482 INFO L472 AbstractCegarLoop]: Interpolant automaton has 63 states. [2018-07-23 13:41:34,482 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 184 transitions. [2018-07-23 13:41:34,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2018-07-23 13:41:34,483 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:34,483 INFO L357 BasicCegarLoop]: trace histogram [60, 59, 59, 1, 1, 1, 1] [2018-07-23 13:41:34,483 INFO L414 AbstractCegarLoop]: === Iteration 119 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:34,483 INFO L82 PathProgramCache]: Analyzing trace with hash -48035334, now seen corresponding path program 117 times [2018-07-23 13:41:34,484 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:34,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:34,790 INFO L134 CoverageAnalysis]: Checked inductivity of 5310 backedges. 3540 proven. 1770 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:34,790 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:34,790 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [121] total 121 [2018-07-23 13:41:34,790 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:34,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:34,791 INFO L185 omatonBuilderFactory]: Interpolants [65857#false, 65856#true, 65859#(<= ULTIMATE.start_main_~i~5 1), 65858#(<= ULTIMATE.start_main_~i~5 0), 65861#(<= ULTIMATE.start_main_~i~5 3), 65860#(<= ULTIMATE.start_main_~i~5 2), 65863#(<= ULTIMATE.start_main_~i~5 5), 65862#(<= ULTIMATE.start_main_~i~5 4), 65865#(<= ULTIMATE.start_main_~i~5 7), 65864#(<= ULTIMATE.start_main_~i~5 6), 65867#(<= ULTIMATE.start_main_~i~5 9), 65866#(<= ULTIMATE.start_main_~i~5 8), 65869#(<= ULTIMATE.start_main_~i~5 11), 65868#(<= ULTIMATE.start_main_~i~5 10), 65871#(<= ULTIMATE.start_main_~i~5 13), 65870#(<= ULTIMATE.start_main_~i~5 12), 65873#(<= ULTIMATE.start_main_~i~5 15), 65872#(<= ULTIMATE.start_main_~i~5 14), 65875#(<= ULTIMATE.start_main_~i~5 17), 65874#(<= ULTIMATE.start_main_~i~5 16), 65877#(<= ULTIMATE.start_main_~i~5 19), 65876#(<= ULTIMATE.start_main_~i~5 18), 65879#(<= ULTIMATE.start_main_~i~5 21), 65878#(<= ULTIMATE.start_main_~i~5 20), 65881#(<= ULTIMATE.start_main_~i~5 23), 65880#(<= ULTIMATE.start_main_~i~5 22), 65883#(<= ULTIMATE.start_main_~i~5 25), 65882#(<= ULTIMATE.start_main_~i~5 24), 65885#(<= ULTIMATE.start_main_~i~5 27), 65884#(<= ULTIMATE.start_main_~i~5 26), 65887#(<= ULTIMATE.start_main_~i~5 29), 65886#(<= ULTIMATE.start_main_~i~5 28), 65889#(<= ULTIMATE.start_main_~i~5 31), 65888#(<= ULTIMATE.start_main_~i~5 30), 65891#(<= ULTIMATE.start_main_~i~5 33), 65890#(<= ULTIMATE.start_main_~i~5 32), 65893#(<= ULTIMATE.start_main_~i~5 35), 65892#(<= ULTIMATE.start_main_~i~5 34), 65895#(<= ULTIMATE.start_main_~i~5 37), 65894#(<= ULTIMATE.start_main_~i~5 36), 65897#(<= ULTIMATE.start_main_~i~5 39), 65896#(<= ULTIMATE.start_main_~i~5 38), 65899#(<= ULTIMATE.start_main_~i~5 41), 65898#(<= ULTIMATE.start_main_~i~5 40), 65901#(<= ULTIMATE.start_main_~i~5 43), 65900#(<= ULTIMATE.start_main_~i~5 42), 65903#(<= ULTIMATE.start_main_~i~5 45), 65902#(<= ULTIMATE.start_main_~i~5 44), 65905#(<= ULTIMATE.start_main_~i~5 47), 65904#(<= ULTIMATE.start_main_~i~5 46), 65907#(<= ULTIMATE.start_main_~i~5 49), 65906#(<= ULTIMATE.start_main_~i~5 48), 65909#(<= ULTIMATE.start_main_~i~5 51), 65908#(<= ULTIMATE.start_main_~i~5 50), 65911#(<= ULTIMATE.start_main_~i~5 53), 65910#(<= ULTIMATE.start_main_~i~5 52), 65913#(<= ULTIMATE.start_main_~i~5 55), 65912#(<= ULTIMATE.start_main_~i~5 54), 65915#(<= ULTIMATE.start_main_~i~5 57), 65914#(<= ULTIMATE.start_main_~i~5 56), 65917#(<= ULTIMATE.start_main_~i~5 59), 65916#(<= ULTIMATE.start_main_~i~5 58), 65919#(<= ULTIMATE.start_main_~j~5 58), 65918#(<= ULTIMATE.start_main_~j~5 59), 65921#(<= ULTIMATE.start_main_~j~5 56), 65920#(<= ULTIMATE.start_main_~j~5 57), 65923#(<= ULTIMATE.start_main_~j~5 54), 65922#(<= ULTIMATE.start_main_~j~5 55), 65925#(<= ULTIMATE.start_main_~j~5 52), 65924#(<= ULTIMATE.start_main_~j~5 53), 65927#(<= ULTIMATE.start_main_~j~5 50), 65926#(<= ULTIMATE.start_main_~j~5 51), 65929#(<= ULTIMATE.start_main_~j~5 48), 65928#(<= ULTIMATE.start_main_~j~5 49), 65931#(<= ULTIMATE.start_main_~j~5 46), 65930#(<= ULTIMATE.start_main_~j~5 47), 65933#(<= ULTIMATE.start_main_~j~5 44), 65932#(<= ULTIMATE.start_main_~j~5 45), 65935#(<= ULTIMATE.start_main_~j~5 42), 65934#(<= ULTIMATE.start_main_~j~5 43), 65937#(<= ULTIMATE.start_main_~j~5 40), 65936#(<= ULTIMATE.start_main_~j~5 41), 65939#(<= ULTIMATE.start_main_~j~5 38), 65938#(<= ULTIMATE.start_main_~j~5 39), 65941#(<= ULTIMATE.start_main_~j~5 36), 65940#(<= ULTIMATE.start_main_~j~5 37), 65943#(<= ULTIMATE.start_main_~j~5 34), 65942#(<= ULTIMATE.start_main_~j~5 35), 65945#(<= ULTIMATE.start_main_~j~5 32), 65944#(<= ULTIMATE.start_main_~j~5 33), 65947#(<= ULTIMATE.start_main_~j~5 30), 65946#(<= ULTIMATE.start_main_~j~5 31), 65949#(<= ULTIMATE.start_main_~j~5 28), 65948#(<= ULTIMATE.start_main_~j~5 29), 65951#(<= ULTIMATE.start_main_~j~5 26), 65950#(<= ULTIMATE.start_main_~j~5 27), 65953#(<= ULTIMATE.start_main_~j~5 24), 65952#(<= ULTIMATE.start_main_~j~5 25), 65955#(<= ULTIMATE.start_main_~j~5 22), 65954#(<= ULTIMATE.start_main_~j~5 23), 65957#(<= ULTIMATE.start_main_~j~5 20), 65956#(<= ULTIMATE.start_main_~j~5 21), 65959#(<= ULTIMATE.start_main_~j~5 18), 65958#(<= ULTIMATE.start_main_~j~5 19), 65961#(<= ULTIMATE.start_main_~j~5 16), 65960#(<= ULTIMATE.start_main_~j~5 17), 65963#(<= ULTIMATE.start_main_~j~5 14), 65962#(<= ULTIMATE.start_main_~j~5 15), 65965#(<= ULTIMATE.start_main_~j~5 12), 65964#(<= ULTIMATE.start_main_~j~5 13), 65967#(<= ULTIMATE.start_main_~j~5 10), 65966#(<= ULTIMATE.start_main_~j~5 11), 65969#(<= ULTIMATE.start_main_~j~5 8), 65968#(<= ULTIMATE.start_main_~j~5 9), 65971#(<= ULTIMATE.start_main_~j~5 6), 65970#(<= ULTIMATE.start_main_~j~5 7), 65973#(<= ULTIMATE.start_main_~j~5 4), 65972#(<= ULTIMATE.start_main_~j~5 5), 65975#(<= ULTIMATE.start_main_~j~5 2), 65974#(<= ULTIMATE.start_main_~j~5 3), 65977#(<= ULTIMATE.start_main_~j~5 0), 65976#(<= ULTIMATE.start_main_~j~5 1)] [2018-07-23 13:41:34,791 INFO L134 CoverageAnalysis]: Checked inductivity of 5310 backedges. 3540 proven. 1770 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:34,791 INFO L450 AbstractCegarLoop]: Interpolant automaton has 122 states [2018-07-23 13:41:34,792 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 122 interpolants. [2018-07-23 13:41:34,793 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3781, Invalid=10981, Unknown=0, NotChecked=0, Total=14762 [2018-07-23 13:41:34,793 INFO L87 Difference]: Start difference. First operand 183 states and 184 transitions. Second operand 122 states. [2018-07-23 13:41:35,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:35,412 INFO L93 Difference]: Finished difference Result 307 states and 309 transitions. [2018-07-23 13:41:35,412 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2018-07-23 13:41:35,412 INFO L78 Accepts]: Start accepts. Automaton has 122 states. Word has length 182 [2018-07-23 13:41:35,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:35,413 INFO L225 Difference]: With dead ends: 307 [2018-07-23 13:41:35,413 INFO L226 Difference]: Without dead ends: 184 [2018-07-23 13:41:35,414 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5251 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=7561, Invalid=25381, Unknown=0, NotChecked=0, Total=32942 [2018-07-23 13:41:35,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2018-07-23 13:41:35,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2018-07-23 13:41:35,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2018-07-23 13:41:35,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 185 transitions. [2018-07-23 13:41:35,438 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 185 transitions. Word has length 182 [2018-07-23 13:41:35,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:35,438 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 185 transitions. [2018-07-23 13:41:35,439 INFO L472 AbstractCegarLoop]: Interpolant automaton has 122 states. [2018-07-23 13:41:35,439 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 185 transitions. [2018-07-23 13:41:35,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2018-07-23 13:41:35,439 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:35,440 INFO L357 BasicCegarLoop]: trace histogram [60, 60, 59, 1, 1, 1, 1] [2018-07-23 13:41:35,440 INFO L414 AbstractCegarLoop]: === Iteration 120 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:35,440 INFO L82 PathProgramCache]: Analyzing trace with hash 1059713203, now seen corresponding path program 118 times [2018-07-23 13:41:35,440 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:35,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:35,664 INFO L134 CoverageAnalysis]: Checked inductivity of 5370 backedges. 1830 proven. 3540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:35,665 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:35,665 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [63] total 63 [2018-07-23 13:41:35,665 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:35,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:35,665 INFO L185 omatonBuilderFactory]: Interpolants [67081#false, 67080#true, 67083#(<= 1 ULTIMATE.start_main_~k~5), 67082#(<= 0 ULTIMATE.start_main_~k~5), 67085#(<= 3 ULTIMATE.start_main_~k~5), 67084#(<= 2 ULTIMATE.start_main_~k~5), 67087#(<= 5 ULTIMATE.start_main_~k~5), 67086#(<= 4 ULTIMATE.start_main_~k~5), 67089#(<= 7 ULTIMATE.start_main_~k~5), 67088#(<= 6 ULTIMATE.start_main_~k~5), 67091#(<= 9 ULTIMATE.start_main_~k~5), 67090#(<= 8 ULTIMATE.start_main_~k~5), 67093#(<= 11 ULTIMATE.start_main_~k~5), 67092#(<= 10 ULTIMATE.start_main_~k~5), 67095#(<= 13 ULTIMATE.start_main_~k~5), 67094#(<= 12 ULTIMATE.start_main_~k~5), 67097#(<= 15 ULTIMATE.start_main_~k~5), 67096#(<= 14 ULTIMATE.start_main_~k~5), 67099#(<= 17 ULTIMATE.start_main_~k~5), 67098#(<= 16 ULTIMATE.start_main_~k~5), 67101#(<= 19 ULTIMATE.start_main_~k~5), 67100#(<= 18 ULTIMATE.start_main_~k~5), 67103#(<= 21 ULTIMATE.start_main_~k~5), 67102#(<= 20 ULTIMATE.start_main_~k~5), 67105#(<= 23 ULTIMATE.start_main_~k~5), 67104#(<= 22 ULTIMATE.start_main_~k~5), 67107#(<= 25 ULTIMATE.start_main_~k~5), 67106#(<= 24 ULTIMATE.start_main_~k~5), 67109#(<= 27 ULTIMATE.start_main_~k~5), 67108#(<= 26 ULTIMATE.start_main_~k~5), 67111#(<= 29 ULTIMATE.start_main_~k~5), 67110#(<= 28 ULTIMATE.start_main_~k~5), 67113#(<= 31 ULTIMATE.start_main_~k~5), 67112#(<= 30 ULTIMATE.start_main_~k~5), 67115#(<= 33 ULTIMATE.start_main_~k~5), 67114#(<= 32 ULTIMATE.start_main_~k~5), 67117#(<= 35 ULTIMATE.start_main_~k~5), 67116#(<= 34 ULTIMATE.start_main_~k~5), 67119#(<= 37 ULTIMATE.start_main_~k~5), 67118#(<= 36 ULTIMATE.start_main_~k~5), 67121#(<= 39 ULTIMATE.start_main_~k~5), 67120#(<= 38 ULTIMATE.start_main_~k~5), 67123#(<= 41 ULTIMATE.start_main_~k~5), 67122#(<= 40 ULTIMATE.start_main_~k~5), 67125#(<= 43 ULTIMATE.start_main_~k~5), 67124#(<= 42 ULTIMATE.start_main_~k~5), 67127#(<= 45 ULTIMATE.start_main_~k~5), 67126#(<= 44 ULTIMATE.start_main_~k~5), 67129#(<= 47 ULTIMATE.start_main_~k~5), 67128#(<= 46 ULTIMATE.start_main_~k~5), 67131#(<= 49 ULTIMATE.start_main_~k~5), 67130#(<= 48 ULTIMATE.start_main_~k~5), 67133#(<= 51 ULTIMATE.start_main_~k~5), 67132#(<= 50 ULTIMATE.start_main_~k~5), 67135#(<= 53 ULTIMATE.start_main_~k~5), 67134#(<= 52 ULTIMATE.start_main_~k~5), 67137#(<= 55 ULTIMATE.start_main_~k~5), 67136#(<= 54 ULTIMATE.start_main_~k~5), 67139#(<= 57 ULTIMATE.start_main_~k~5), 67138#(<= 56 ULTIMATE.start_main_~k~5), 67141#(<= 59 ULTIMATE.start_main_~k~5), 67140#(<= 58 ULTIMATE.start_main_~k~5), 67143#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 67142#(<= 60 ULTIMATE.start_main_~k~5)] [2018-07-23 13:41:35,666 INFO L134 CoverageAnalysis]: Checked inductivity of 5370 backedges. 1830 proven. 3540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:35,666 INFO L450 AbstractCegarLoop]: Interpolant automaton has 64 states [2018-07-23 13:41:35,666 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2018-07-23 13:41:35,667 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1955, Invalid=2077, Unknown=0, NotChecked=0, Total=4032 [2018-07-23 13:41:35,667 INFO L87 Difference]: Start difference. First operand 184 states and 185 transitions. Second operand 64 states. [2018-07-23 13:41:35,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:35,825 INFO L93 Difference]: Finished difference Result 192 states and 193 transitions. [2018-07-23 13:41:35,825 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2018-07-23 13:41:35,825 INFO L78 Accepts]: Start accepts. Automaton has 64 states. Word has length 183 [2018-07-23 13:41:35,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:35,826 INFO L225 Difference]: With dead ends: 192 [2018-07-23 13:41:35,826 INFO L226 Difference]: Without dead ends: 190 [2018-07-23 13:41:35,827 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3660 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5859, Invalid=9641, Unknown=0, NotChecked=0, Total=15500 [2018-07-23 13:41:35,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2018-07-23 13:41:35,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 186. [2018-07-23 13:41:35,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2018-07-23 13:41:35,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 187 transitions. [2018-07-23 13:41:35,852 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 187 transitions. Word has length 183 [2018-07-23 13:41:35,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:35,852 INFO L471 AbstractCegarLoop]: Abstraction has 186 states and 187 transitions. [2018-07-23 13:41:35,852 INFO L472 AbstractCegarLoop]: Interpolant automaton has 64 states. [2018-07-23 13:41:35,852 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 187 transitions. [2018-07-23 13:41:35,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2018-07-23 13:41:35,853 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:35,853 INFO L357 BasicCegarLoop]: trace histogram [61, 60, 60, 1, 1, 1, 1] [2018-07-23 13:41:35,853 INFO L414 AbstractCegarLoop]: === Iteration 121 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:35,853 INFO L82 PathProgramCache]: Analyzing trace with hash 477204955, now seen corresponding path program 119 times [2018-07-23 13:41:35,853 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:35,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:36,206 INFO L134 CoverageAnalysis]: Checked inductivity of 5490 backedges. 3660 proven. 1830 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:36,206 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:36,207 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [123] total 123 [2018-07-23 13:41:36,207 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:36,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:36,207 INFO L185 omatonBuilderFactory]: Interpolants [68097#(<= ULTIMATE.start_main_~j~5 48), 68096#(<= ULTIMATE.start_main_~j~5 49), 68099#(<= ULTIMATE.start_main_~j~5 46), 68098#(<= ULTIMATE.start_main_~j~5 47), 68101#(<= ULTIMATE.start_main_~j~5 44), 68100#(<= ULTIMATE.start_main_~j~5 45), 68103#(<= ULTIMATE.start_main_~j~5 42), 68102#(<= ULTIMATE.start_main_~j~5 43), 68105#(<= ULTIMATE.start_main_~j~5 40), 68104#(<= ULTIMATE.start_main_~j~5 41), 68107#(<= ULTIMATE.start_main_~j~5 38), 68106#(<= ULTIMATE.start_main_~j~5 39), 68109#(<= ULTIMATE.start_main_~j~5 36), 68108#(<= ULTIMATE.start_main_~j~5 37), 68111#(<= ULTIMATE.start_main_~j~5 34), 68110#(<= ULTIMATE.start_main_~j~5 35), 68113#(<= ULTIMATE.start_main_~j~5 32), 68112#(<= ULTIMATE.start_main_~j~5 33), 68115#(<= ULTIMATE.start_main_~j~5 30), 68114#(<= ULTIMATE.start_main_~j~5 31), 68117#(<= ULTIMATE.start_main_~j~5 28), 68116#(<= ULTIMATE.start_main_~j~5 29), 68119#(<= ULTIMATE.start_main_~j~5 26), 68118#(<= ULTIMATE.start_main_~j~5 27), 68121#(<= ULTIMATE.start_main_~j~5 24), 68120#(<= ULTIMATE.start_main_~j~5 25), 68123#(<= ULTIMATE.start_main_~j~5 22), 68122#(<= ULTIMATE.start_main_~j~5 23), 68125#(<= ULTIMATE.start_main_~j~5 20), 68124#(<= ULTIMATE.start_main_~j~5 21), 68127#(<= ULTIMATE.start_main_~j~5 18), 68126#(<= ULTIMATE.start_main_~j~5 19), 68129#(<= ULTIMATE.start_main_~j~5 16), 68128#(<= ULTIMATE.start_main_~j~5 17), 68131#(<= ULTIMATE.start_main_~j~5 14), 68130#(<= ULTIMATE.start_main_~j~5 15), 68133#(<= ULTIMATE.start_main_~j~5 12), 68132#(<= ULTIMATE.start_main_~j~5 13), 68135#(<= ULTIMATE.start_main_~j~5 10), 68134#(<= ULTIMATE.start_main_~j~5 11), 68137#(<= ULTIMATE.start_main_~j~5 8), 68136#(<= ULTIMATE.start_main_~j~5 9), 68139#(<= ULTIMATE.start_main_~j~5 6), 68138#(<= ULTIMATE.start_main_~j~5 7), 68141#(<= ULTIMATE.start_main_~j~5 4), 68140#(<= ULTIMATE.start_main_~j~5 5), 68143#(<= ULTIMATE.start_main_~j~5 2), 68142#(<= ULTIMATE.start_main_~j~5 3), 68145#(<= ULTIMATE.start_main_~j~5 0), 68144#(<= ULTIMATE.start_main_~j~5 1), 68023#false, 68022#true, 68025#(<= ULTIMATE.start_main_~i~5 1), 68024#(<= ULTIMATE.start_main_~i~5 0), 68027#(<= ULTIMATE.start_main_~i~5 3), 68026#(<= ULTIMATE.start_main_~i~5 2), 68029#(<= ULTIMATE.start_main_~i~5 5), 68028#(<= ULTIMATE.start_main_~i~5 4), 68031#(<= ULTIMATE.start_main_~i~5 7), 68030#(<= ULTIMATE.start_main_~i~5 6), 68033#(<= ULTIMATE.start_main_~i~5 9), 68032#(<= ULTIMATE.start_main_~i~5 8), 68035#(<= ULTIMATE.start_main_~i~5 11), 68034#(<= ULTIMATE.start_main_~i~5 10), 68037#(<= ULTIMATE.start_main_~i~5 13), 68036#(<= ULTIMATE.start_main_~i~5 12), 68039#(<= ULTIMATE.start_main_~i~5 15), 68038#(<= ULTIMATE.start_main_~i~5 14), 68041#(<= ULTIMATE.start_main_~i~5 17), 68040#(<= ULTIMATE.start_main_~i~5 16), 68043#(<= ULTIMATE.start_main_~i~5 19), 68042#(<= ULTIMATE.start_main_~i~5 18), 68045#(<= ULTIMATE.start_main_~i~5 21), 68044#(<= ULTIMATE.start_main_~i~5 20), 68047#(<= ULTIMATE.start_main_~i~5 23), 68046#(<= ULTIMATE.start_main_~i~5 22), 68049#(<= ULTIMATE.start_main_~i~5 25), 68048#(<= ULTIMATE.start_main_~i~5 24), 68051#(<= ULTIMATE.start_main_~i~5 27), 68050#(<= ULTIMATE.start_main_~i~5 26), 68053#(<= ULTIMATE.start_main_~i~5 29), 68052#(<= ULTIMATE.start_main_~i~5 28), 68055#(<= ULTIMATE.start_main_~i~5 31), 68054#(<= ULTIMATE.start_main_~i~5 30), 68057#(<= ULTIMATE.start_main_~i~5 33), 68056#(<= ULTIMATE.start_main_~i~5 32), 68059#(<= ULTIMATE.start_main_~i~5 35), 68058#(<= ULTIMATE.start_main_~i~5 34), 68061#(<= ULTIMATE.start_main_~i~5 37), 68060#(<= ULTIMATE.start_main_~i~5 36), 68063#(<= ULTIMATE.start_main_~i~5 39), 68062#(<= ULTIMATE.start_main_~i~5 38), 68065#(<= ULTIMATE.start_main_~i~5 41), 68064#(<= ULTIMATE.start_main_~i~5 40), 68067#(<= ULTIMATE.start_main_~i~5 43), 68066#(<= ULTIMATE.start_main_~i~5 42), 68069#(<= ULTIMATE.start_main_~i~5 45), 68068#(<= ULTIMATE.start_main_~i~5 44), 68071#(<= ULTIMATE.start_main_~i~5 47), 68070#(<= ULTIMATE.start_main_~i~5 46), 68073#(<= ULTIMATE.start_main_~i~5 49), 68072#(<= ULTIMATE.start_main_~i~5 48), 68075#(<= ULTIMATE.start_main_~i~5 51), 68074#(<= ULTIMATE.start_main_~i~5 50), 68077#(<= ULTIMATE.start_main_~i~5 53), 68076#(<= ULTIMATE.start_main_~i~5 52), 68079#(<= ULTIMATE.start_main_~i~5 55), 68078#(<= ULTIMATE.start_main_~i~5 54), 68081#(<= ULTIMATE.start_main_~i~5 57), 68080#(<= ULTIMATE.start_main_~i~5 56), 68083#(<= ULTIMATE.start_main_~i~5 59), 68082#(<= ULTIMATE.start_main_~i~5 58), 68085#(<= ULTIMATE.start_main_~j~5 60), 68084#(<= ULTIMATE.start_main_~i~5 60), 68087#(<= ULTIMATE.start_main_~j~5 58), 68086#(<= ULTIMATE.start_main_~j~5 59), 68089#(<= ULTIMATE.start_main_~j~5 56), 68088#(<= ULTIMATE.start_main_~j~5 57), 68091#(<= ULTIMATE.start_main_~j~5 54), 68090#(<= ULTIMATE.start_main_~j~5 55), 68093#(<= ULTIMATE.start_main_~j~5 52), 68092#(<= ULTIMATE.start_main_~j~5 53), 68095#(<= ULTIMATE.start_main_~j~5 50), 68094#(<= ULTIMATE.start_main_~j~5 51)] [2018-07-23 13:41:36,208 INFO L134 CoverageAnalysis]: Checked inductivity of 5490 backedges. 3660 proven. 1830 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:36,208 INFO L450 AbstractCegarLoop]: Interpolant automaton has 124 states [2018-07-23 13:41:36,209 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 124 interpolants. [2018-07-23 13:41:36,210 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3905, Invalid=11347, Unknown=0, NotChecked=0, Total=15252 [2018-07-23 13:41:36,210 INFO L87 Difference]: Start difference. First operand 186 states and 187 transitions. Second operand 124 states. [2018-07-23 13:41:36,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:36,886 INFO L93 Difference]: Finished difference Result 312 states and 314 transitions. [2018-07-23 13:41:36,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2018-07-23 13:41:36,886 INFO L78 Accepts]: Start accepts. Automaton has 124 states. Word has length 185 [2018-07-23 13:41:36,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:36,887 INFO L225 Difference]: With dead ends: 312 [2018-07-23 13:41:36,887 INFO L226 Difference]: Without dead ends: 187 [2018-07-23 13:41:36,890 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 183 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5430 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=7809, Invalid=26231, Unknown=0, NotChecked=0, Total=34040 [2018-07-23 13:41:36,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2018-07-23 13:41:36,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2018-07-23 13:41:36,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2018-07-23 13:41:36,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 188 transitions. [2018-07-23 13:41:36,915 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 188 transitions. Word has length 185 [2018-07-23 13:41:36,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:36,915 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 188 transitions. [2018-07-23 13:41:36,915 INFO L472 AbstractCegarLoop]: Interpolant automaton has 124 states. [2018-07-23 13:41:36,915 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 188 transitions. [2018-07-23 13:41:36,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2018-07-23 13:41:36,916 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:36,916 INFO L357 BasicCegarLoop]: trace histogram [61, 61, 60, 1, 1, 1, 1] [2018-07-23 13:41:36,916 INFO L414 AbstractCegarLoop]: === Iteration 122 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:36,917 INFO L82 PathProgramCache]: Analyzing trace with hash -1114831742, now seen corresponding path program 120 times [2018-07-23 13:41:36,917 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:36,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:37,115 INFO L134 CoverageAnalysis]: Checked inductivity of 5551 backedges. 1891 proven. 3660 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:37,116 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:37,116 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [64] total 64 [2018-07-23 13:41:37,116 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:37,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:37,117 INFO L185 omatonBuilderFactory]: Interpolants [69267#false, 69266#true, 69269#(<= 1 ULTIMATE.start_main_~k~5), 69268#(<= 0 ULTIMATE.start_main_~k~5), 69271#(<= 3 ULTIMATE.start_main_~k~5), 69270#(<= 2 ULTIMATE.start_main_~k~5), 69273#(<= 5 ULTIMATE.start_main_~k~5), 69272#(<= 4 ULTIMATE.start_main_~k~5), 69275#(<= 7 ULTIMATE.start_main_~k~5), 69274#(<= 6 ULTIMATE.start_main_~k~5), 69277#(<= 9 ULTIMATE.start_main_~k~5), 69276#(<= 8 ULTIMATE.start_main_~k~5), 69279#(<= 11 ULTIMATE.start_main_~k~5), 69278#(<= 10 ULTIMATE.start_main_~k~5), 69281#(<= 13 ULTIMATE.start_main_~k~5), 69280#(<= 12 ULTIMATE.start_main_~k~5), 69283#(<= 15 ULTIMATE.start_main_~k~5), 69282#(<= 14 ULTIMATE.start_main_~k~5), 69285#(<= 17 ULTIMATE.start_main_~k~5), 69284#(<= 16 ULTIMATE.start_main_~k~5), 69287#(<= 19 ULTIMATE.start_main_~k~5), 69286#(<= 18 ULTIMATE.start_main_~k~5), 69289#(<= 21 ULTIMATE.start_main_~k~5), 69288#(<= 20 ULTIMATE.start_main_~k~5), 69291#(<= 23 ULTIMATE.start_main_~k~5), 69290#(<= 22 ULTIMATE.start_main_~k~5), 69293#(<= 25 ULTIMATE.start_main_~k~5), 69292#(<= 24 ULTIMATE.start_main_~k~5), 69295#(<= 27 ULTIMATE.start_main_~k~5), 69294#(<= 26 ULTIMATE.start_main_~k~5), 69297#(<= 29 ULTIMATE.start_main_~k~5), 69296#(<= 28 ULTIMATE.start_main_~k~5), 69299#(<= 31 ULTIMATE.start_main_~k~5), 69298#(<= 30 ULTIMATE.start_main_~k~5), 69301#(<= 33 ULTIMATE.start_main_~k~5), 69300#(<= 32 ULTIMATE.start_main_~k~5), 69303#(<= 35 ULTIMATE.start_main_~k~5), 69302#(<= 34 ULTIMATE.start_main_~k~5), 69305#(<= 37 ULTIMATE.start_main_~k~5), 69304#(<= 36 ULTIMATE.start_main_~k~5), 69307#(<= 39 ULTIMATE.start_main_~k~5), 69306#(<= 38 ULTIMATE.start_main_~k~5), 69309#(<= 41 ULTIMATE.start_main_~k~5), 69308#(<= 40 ULTIMATE.start_main_~k~5), 69311#(<= 43 ULTIMATE.start_main_~k~5), 69310#(<= 42 ULTIMATE.start_main_~k~5), 69313#(<= 45 ULTIMATE.start_main_~k~5), 69312#(<= 44 ULTIMATE.start_main_~k~5), 69315#(<= 47 ULTIMATE.start_main_~k~5), 69314#(<= 46 ULTIMATE.start_main_~k~5), 69317#(<= 49 ULTIMATE.start_main_~k~5), 69316#(<= 48 ULTIMATE.start_main_~k~5), 69319#(<= 51 ULTIMATE.start_main_~k~5), 69318#(<= 50 ULTIMATE.start_main_~k~5), 69321#(<= 53 ULTIMATE.start_main_~k~5), 69320#(<= 52 ULTIMATE.start_main_~k~5), 69323#(<= 55 ULTIMATE.start_main_~k~5), 69322#(<= 54 ULTIMATE.start_main_~k~5), 69325#(<= 57 ULTIMATE.start_main_~k~5), 69324#(<= 56 ULTIMATE.start_main_~k~5), 69327#(<= 59 ULTIMATE.start_main_~k~5), 69326#(<= 58 ULTIMATE.start_main_~k~5), 69329#(<= 61 ULTIMATE.start_main_~k~5), 69328#(<= 60 ULTIMATE.start_main_~k~5), 69330#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond)] [2018-07-23 13:41:37,117 INFO L134 CoverageAnalysis]: Checked inductivity of 5551 backedges. 1891 proven. 3660 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:37,117 INFO L450 AbstractCegarLoop]: Interpolant automaton has 65 states [2018-07-23 13:41:37,117 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2018-07-23 13:41:37,117 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2018, Invalid=2142, Unknown=0, NotChecked=0, Total=4160 [2018-07-23 13:41:37,118 INFO L87 Difference]: Start difference. First operand 187 states and 188 transitions. Second operand 65 states. [2018-07-23 13:41:37,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:37,301 INFO L93 Difference]: Finished difference Result 195 states and 196 transitions. [2018-07-23 13:41:37,302 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2018-07-23 13:41:37,302 INFO L78 Accepts]: Start accepts. Automaton has 65 states. Word has length 186 [2018-07-23 13:41:37,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:37,302 INFO L225 Difference]: With dead ends: 195 [2018-07-23 13:41:37,302 INFO L226 Difference]: Without dead ends: 193 [2018-07-23 13:41:37,304 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3782 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6048, Invalid=9954, Unknown=0, NotChecked=0, Total=16002 [2018-07-23 13:41:37,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2018-07-23 13:41:37,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 189. [2018-07-23 13:41:37,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2018-07-23 13:41:37,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 190 transitions. [2018-07-23 13:41:37,322 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 190 transitions. Word has length 186 [2018-07-23 13:41:37,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:37,323 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 190 transitions. [2018-07-23 13:41:37,323 INFO L472 AbstractCegarLoop]: Interpolant automaton has 65 states. [2018-07-23 13:41:37,323 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 190 transitions. [2018-07-23 13:41:37,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2018-07-23 13:41:37,323 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:37,323 INFO L357 BasicCegarLoop]: trace histogram [62, 61, 61, 1, 1, 1, 1] [2018-07-23 13:41:37,324 INFO L414 AbstractCegarLoop]: === Iteration 123 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:37,324 INFO L82 PathProgramCache]: Analyzing trace with hash -1906381334, now seen corresponding path program 121 times [2018-07-23 13:41:37,324 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:37,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:37,668 INFO L134 CoverageAnalysis]: Checked inductivity of 5673 backedges. 3782 proven. 1891 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:37,668 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:37,668 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [125] total 125 [2018-07-23 13:41:37,668 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:37,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:37,669 INFO L185 omatonBuilderFactory]: Interpolants [70223#true, 70225#(<= ULTIMATE.start_main_~i~5 0), 70224#false, 70227#(<= ULTIMATE.start_main_~i~5 2), 70226#(<= ULTIMATE.start_main_~i~5 1), 70229#(<= ULTIMATE.start_main_~i~5 4), 70228#(<= ULTIMATE.start_main_~i~5 3), 70231#(<= ULTIMATE.start_main_~i~5 6), 70230#(<= ULTIMATE.start_main_~i~5 5), 70233#(<= ULTIMATE.start_main_~i~5 8), 70232#(<= ULTIMATE.start_main_~i~5 7), 70235#(<= ULTIMATE.start_main_~i~5 10), 70234#(<= ULTIMATE.start_main_~i~5 9), 70237#(<= ULTIMATE.start_main_~i~5 12), 70236#(<= ULTIMATE.start_main_~i~5 11), 70239#(<= ULTIMATE.start_main_~i~5 14), 70238#(<= ULTIMATE.start_main_~i~5 13), 70241#(<= ULTIMATE.start_main_~i~5 16), 70240#(<= ULTIMATE.start_main_~i~5 15), 70243#(<= ULTIMATE.start_main_~i~5 18), 70242#(<= ULTIMATE.start_main_~i~5 17), 70245#(<= ULTIMATE.start_main_~i~5 20), 70244#(<= ULTIMATE.start_main_~i~5 19), 70247#(<= ULTIMATE.start_main_~i~5 22), 70246#(<= ULTIMATE.start_main_~i~5 21), 70249#(<= ULTIMATE.start_main_~i~5 24), 70248#(<= ULTIMATE.start_main_~i~5 23), 70251#(<= ULTIMATE.start_main_~i~5 26), 70250#(<= ULTIMATE.start_main_~i~5 25), 70253#(<= ULTIMATE.start_main_~i~5 28), 70252#(<= ULTIMATE.start_main_~i~5 27), 70255#(<= ULTIMATE.start_main_~i~5 30), 70254#(<= ULTIMATE.start_main_~i~5 29), 70257#(<= ULTIMATE.start_main_~i~5 32), 70256#(<= ULTIMATE.start_main_~i~5 31), 70259#(<= ULTIMATE.start_main_~i~5 34), 70258#(<= ULTIMATE.start_main_~i~5 33), 70261#(<= ULTIMATE.start_main_~i~5 36), 70260#(<= ULTIMATE.start_main_~i~5 35), 70263#(<= ULTIMATE.start_main_~i~5 38), 70262#(<= ULTIMATE.start_main_~i~5 37), 70265#(<= ULTIMATE.start_main_~i~5 40), 70264#(<= ULTIMATE.start_main_~i~5 39), 70267#(<= ULTIMATE.start_main_~i~5 42), 70266#(<= ULTIMATE.start_main_~i~5 41), 70269#(<= ULTIMATE.start_main_~i~5 44), 70268#(<= ULTIMATE.start_main_~i~5 43), 70271#(<= ULTIMATE.start_main_~i~5 46), 70270#(<= ULTIMATE.start_main_~i~5 45), 70273#(<= ULTIMATE.start_main_~i~5 48), 70272#(<= ULTIMATE.start_main_~i~5 47), 70275#(<= ULTIMATE.start_main_~i~5 50), 70274#(<= ULTIMATE.start_main_~i~5 49), 70277#(<= ULTIMATE.start_main_~i~5 52), 70276#(<= ULTIMATE.start_main_~i~5 51), 70279#(<= ULTIMATE.start_main_~i~5 54), 70278#(<= ULTIMATE.start_main_~i~5 53), 70281#(<= ULTIMATE.start_main_~i~5 56), 70280#(<= ULTIMATE.start_main_~i~5 55), 70283#(<= ULTIMATE.start_main_~i~5 58), 70282#(<= ULTIMATE.start_main_~i~5 57), 70285#(<= ULTIMATE.start_main_~i~5 60), 70284#(<= ULTIMATE.start_main_~i~5 59), 70287#(<= ULTIMATE.start_main_~j~5 61), 70286#(<= ULTIMATE.start_main_~i~5 61), 70289#(<= ULTIMATE.start_main_~j~5 59), 70288#(<= ULTIMATE.start_main_~j~5 60), 70291#(<= ULTIMATE.start_main_~j~5 57), 70290#(<= ULTIMATE.start_main_~j~5 58), 70293#(<= ULTIMATE.start_main_~j~5 55), 70292#(<= ULTIMATE.start_main_~j~5 56), 70295#(<= ULTIMATE.start_main_~j~5 53), 70294#(<= ULTIMATE.start_main_~j~5 54), 70297#(<= ULTIMATE.start_main_~j~5 51), 70296#(<= ULTIMATE.start_main_~j~5 52), 70299#(<= ULTIMATE.start_main_~j~5 49), 70298#(<= ULTIMATE.start_main_~j~5 50), 70301#(<= ULTIMATE.start_main_~j~5 47), 70300#(<= ULTIMATE.start_main_~j~5 48), 70303#(<= ULTIMATE.start_main_~j~5 45), 70302#(<= ULTIMATE.start_main_~j~5 46), 70305#(<= ULTIMATE.start_main_~j~5 43), 70304#(<= ULTIMATE.start_main_~j~5 44), 70307#(<= ULTIMATE.start_main_~j~5 41), 70306#(<= ULTIMATE.start_main_~j~5 42), 70309#(<= ULTIMATE.start_main_~j~5 39), 70308#(<= ULTIMATE.start_main_~j~5 40), 70311#(<= ULTIMATE.start_main_~j~5 37), 70310#(<= ULTIMATE.start_main_~j~5 38), 70313#(<= ULTIMATE.start_main_~j~5 35), 70312#(<= ULTIMATE.start_main_~j~5 36), 70315#(<= ULTIMATE.start_main_~j~5 33), 70314#(<= ULTIMATE.start_main_~j~5 34), 70317#(<= ULTIMATE.start_main_~j~5 31), 70316#(<= ULTIMATE.start_main_~j~5 32), 70319#(<= ULTIMATE.start_main_~j~5 29), 70318#(<= ULTIMATE.start_main_~j~5 30), 70321#(<= ULTIMATE.start_main_~j~5 27), 70320#(<= ULTIMATE.start_main_~j~5 28), 70323#(<= ULTIMATE.start_main_~j~5 25), 70322#(<= ULTIMATE.start_main_~j~5 26), 70325#(<= ULTIMATE.start_main_~j~5 23), 70324#(<= ULTIMATE.start_main_~j~5 24), 70327#(<= ULTIMATE.start_main_~j~5 21), 70326#(<= ULTIMATE.start_main_~j~5 22), 70329#(<= ULTIMATE.start_main_~j~5 19), 70328#(<= ULTIMATE.start_main_~j~5 20), 70331#(<= ULTIMATE.start_main_~j~5 17), 70330#(<= ULTIMATE.start_main_~j~5 18), 70333#(<= ULTIMATE.start_main_~j~5 15), 70332#(<= ULTIMATE.start_main_~j~5 16), 70335#(<= ULTIMATE.start_main_~j~5 13), 70334#(<= ULTIMATE.start_main_~j~5 14), 70337#(<= ULTIMATE.start_main_~j~5 11), 70336#(<= ULTIMATE.start_main_~j~5 12), 70339#(<= ULTIMATE.start_main_~j~5 9), 70338#(<= ULTIMATE.start_main_~j~5 10), 70341#(<= ULTIMATE.start_main_~j~5 7), 70340#(<= ULTIMATE.start_main_~j~5 8), 70343#(<= ULTIMATE.start_main_~j~5 5), 70342#(<= ULTIMATE.start_main_~j~5 6), 70345#(<= ULTIMATE.start_main_~j~5 3), 70344#(<= ULTIMATE.start_main_~j~5 4), 70347#(<= ULTIMATE.start_main_~j~5 1), 70346#(<= ULTIMATE.start_main_~j~5 2), 70348#(<= ULTIMATE.start_main_~j~5 0)] [2018-07-23 13:41:37,669 INFO L134 CoverageAnalysis]: Checked inductivity of 5673 backedges. 3782 proven. 1891 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:37,669 INFO L450 AbstractCegarLoop]: Interpolant automaton has 126 states [2018-07-23 13:41:37,670 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 126 interpolants. [2018-07-23 13:41:37,670 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4031, Invalid=11719, Unknown=0, NotChecked=0, Total=15750 [2018-07-23 13:41:37,671 INFO L87 Difference]: Start difference. First operand 189 states and 190 transitions. Second operand 126 states. [2018-07-23 13:41:38,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:38,341 INFO L93 Difference]: Finished difference Result 317 states and 319 transitions. [2018-07-23 13:41:38,341 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2018-07-23 13:41:38,341 INFO L78 Accepts]: Start accepts. Automaton has 126 states. Word has length 188 [2018-07-23 13:41:38,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:38,342 INFO L225 Difference]: With dead ends: 317 [2018-07-23 13:41:38,342 INFO L226 Difference]: Without dead ends: 190 [2018-07-23 13:41:38,344 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 186 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5612 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=8061, Invalid=27095, Unknown=0, NotChecked=0, Total=35156 [2018-07-23 13:41:38,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2018-07-23 13:41:38,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2018-07-23 13:41:38,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2018-07-23 13:41:38,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 191 transitions. [2018-07-23 13:41:38,369 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 191 transitions. Word has length 188 [2018-07-23 13:41:38,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:38,369 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 191 transitions. [2018-07-23 13:41:38,369 INFO L472 AbstractCegarLoop]: Interpolant automaton has 126 states. [2018-07-23 13:41:38,369 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 191 transitions. [2018-07-23 13:41:38,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2018-07-23 13:41:38,370 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:38,370 INFO L357 BasicCegarLoop]: trace histogram [62, 62, 61, 1, 1, 1, 1] [2018-07-23 13:41:38,370 INFO L414 AbstractCegarLoop]: === Iteration 124 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:38,370 INFO L82 PathProgramCache]: Analyzing trace with hash -947771933, now seen corresponding path program 122 times [2018-07-23 13:41:38,370 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:38,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:38,609 INFO L134 CoverageAnalysis]: Checked inductivity of 5735 backedges. 1953 proven. 3782 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:38,609 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:38,609 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [65] total 65 [2018-07-23 13:41:38,609 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:38,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:38,610 INFO L185 omatonBuilderFactory]: Interpolants [71552#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 71487#true, 71489#(<= 0 ULTIMATE.start_main_~k~5), 71488#false, 71491#(<= 2 ULTIMATE.start_main_~k~5), 71490#(<= 1 ULTIMATE.start_main_~k~5), 71493#(<= 4 ULTIMATE.start_main_~k~5), 71492#(<= 3 ULTIMATE.start_main_~k~5), 71495#(<= 6 ULTIMATE.start_main_~k~5), 71494#(<= 5 ULTIMATE.start_main_~k~5), 71497#(<= 8 ULTIMATE.start_main_~k~5), 71496#(<= 7 ULTIMATE.start_main_~k~5), 71499#(<= 10 ULTIMATE.start_main_~k~5), 71498#(<= 9 ULTIMATE.start_main_~k~5), 71501#(<= 12 ULTIMATE.start_main_~k~5), 71500#(<= 11 ULTIMATE.start_main_~k~5), 71503#(<= 14 ULTIMATE.start_main_~k~5), 71502#(<= 13 ULTIMATE.start_main_~k~5), 71505#(<= 16 ULTIMATE.start_main_~k~5), 71504#(<= 15 ULTIMATE.start_main_~k~5), 71507#(<= 18 ULTIMATE.start_main_~k~5), 71506#(<= 17 ULTIMATE.start_main_~k~5), 71509#(<= 20 ULTIMATE.start_main_~k~5), 71508#(<= 19 ULTIMATE.start_main_~k~5), 71511#(<= 22 ULTIMATE.start_main_~k~5), 71510#(<= 21 ULTIMATE.start_main_~k~5), 71513#(<= 24 ULTIMATE.start_main_~k~5), 71512#(<= 23 ULTIMATE.start_main_~k~5), 71515#(<= 26 ULTIMATE.start_main_~k~5), 71514#(<= 25 ULTIMATE.start_main_~k~5), 71517#(<= 28 ULTIMATE.start_main_~k~5), 71516#(<= 27 ULTIMATE.start_main_~k~5), 71519#(<= 30 ULTIMATE.start_main_~k~5), 71518#(<= 29 ULTIMATE.start_main_~k~5), 71521#(<= 32 ULTIMATE.start_main_~k~5), 71520#(<= 31 ULTIMATE.start_main_~k~5), 71523#(<= 34 ULTIMATE.start_main_~k~5), 71522#(<= 33 ULTIMATE.start_main_~k~5), 71525#(<= 36 ULTIMATE.start_main_~k~5), 71524#(<= 35 ULTIMATE.start_main_~k~5), 71527#(<= 38 ULTIMATE.start_main_~k~5), 71526#(<= 37 ULTIMATE.start_main_~k~5), 71529#(<= 40 ULTIMATE.start_main_~k~5), 71528#(<= 39 ULTIMATE.start_main_~k~5), 71531#(<= 42 ULTIMATE.start_main_~k~5), 71530#(<= 41 ULTIMATE.start_main_~k~5), 71533#(<= 44 ULTIMATE.start_main_~k~5), 71532#(<= 43 ULTIMATE.start_main_~k~5), 71535#(<= 46 ULTIMATE.start_main_~k~5), 71534#(<= 45 ULTIMATE.start_main_~k~5), 71537#(<= 48 ULTIMATE.start_main_~k~5), 71536#(<= 47 ULTIMATE.start_main_~k~5), 71539#(<= 50 ULTIMATE.start_main_~k~5), 71538#(<= 49 ULTIMATE.start_main_~k~5), 71541#(<= 52 ULTIMATE.start_main_~k~5), 71540#(<= 51 ULTIMATE.start_main_~k~5), 71543#(<= 54 ULTIMATE.start_main_~k~5), 71542#(<= 53 ULTIMATE.start_main_~k~5), 71545#(<= 56 ULTIMATE.start_main_~k~5), 71544#(<= 55 ULTIMATE.start_main_~k~5), 71547#(<= 58 ULTIMATE.start_main_~k~5), 71546#(<= 57 ULTIMATE.start_main_~k~5), 71549#(<= 60 ULTIMATE.start_main_~k~5), 71548#(<= 59 ULTIMATE.start_main_~k~5), 71551#(<= 62 ULTIMATE.start_main_~k~5), 71550#(<= 61 ULTIMATE.start_main_~k~5)] [2018-07-23 13:41:38,610 INFO L134 CoverageAnalysis]: Checked inductivity of 5735 backedges. 1953 proven. 3782 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:38,610 INFO L450 AbstractCegarLoop]: Interpolant automaton has 66 states [2018-07-23 13:41:38,611 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2018-07-23 13:41:38,611 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2082, Invalid=2208, Unknown=0, NotChecked=0, Total=4290 [2018-07-23 13:41:38,611 INFO L87 Difference]: Start difference. First operand 190 states and 191 transitions. Second operand 66 states. [2018-07-23 13:41:38,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:38,862 INFO L93 Difference]: Finished difference Result 198 states and 199 transitions. [2018-07-23 13:41:38,862 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2018-07-23 13:41:38,862 INFO L78 Accepts]: Start accepts. Automaton has 66 states. Word has length 189 [2018-07-23 13:41:38,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:38,863 INFO L225 Difference]: With dead ends: 198 [2018-07-23 13:41:38,863 INFO L226 Difference]: Without dead ends: 196 [2018-07-23 13:41:38,864 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3906 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6240, Invalid=10272, Unknown=0, NotChecked=0, Total=16512 [2018-07-23 13:41:38,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2018-07-23 13:41:38,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 192. [2018-07-23 13:41:38,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2018-07-23 13:41:38,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 193 transitions. [2018-07-23 13:41:38,890 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 193 transitions. Word has length 189 [2018-07-23 13:41:38,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:38,890 INFO L471 AbstractCegarLoop]: Abstraction has 192 states and 193 transitions. [2018-07-23 13:41:38,890 INFO L472 AbstractCegarLoop]: Interpolant automaton has 66 states. [2018-07-23 13:41:38,890 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 193 transitions. [2018-07-23 13:41:38,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2018-07-23 13:41:38,891 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:38,891 INFO L357 BasicCegarLoop]: trace histogram [63, 62, 62, 1, 1, 1, 1] [2018-07-23 13:41:38,891 INFO L414 AbstractCegarLoop]: === Iteration 125 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:38,891 INFO L82 PathProgramCache]: Analyzing trace with hash -275694837, now seen corresponding path program 123 times [2018-07-23 13:41:38,891 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:38,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:39,322 INFO L134 CoverageAnalysis]: Checked inductivity of 5859 backedges. 3906 proven. 1953 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:39,323 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:39,323 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [127] total 127 [2018-07-23 13:41:39,323 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:39,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:39,323 INFO L185 omatonBuilderFactory]: Interpolants [72459#true, 72461#(<= ULTIMATE.start_main_~i~5 0), 72460#false, 72463#(<= ULTIMATE.start_main_~i~5 2), 72462#(<= ULTIMATE.start_main_~i~5 1), 72465#(<= ULTIMATE.start_main_~i~5 4), 72464#(<= ULTIMATE.start_main_~i~5 3), 72467#(<= ULTIMATE.start_main_~i~5 6), 72466#(<= ULTIMATE.start_main_~i~5 5), 72469#(<= ULTIMATE.start_main_~i~5 8), 72468#(<= ULTIMATE.start_main_~i~5 7), 72471#(<= ULTIMATE.start_main_~i~5 10), 72470#(<= ULTIMATE.start_main_~i~5 9), 72473#(<= ULTIMATE.start_main_~i~5 12), 72472#(<= ULTIMATE.start_main_~i~5 11), 72475#(<= ULTIMATE.start_main_~i~5 14), 72474#(<= ULTIMATE.start_main_~i~5 13), 72477#(<= ULTIMATE.start_main_~i~5 16), 72476#(<= ULTIMATE.start_main_~i~5 15), 72479#(<= ULTIMATE.start_main_~i~5 18), 72478#(<= ULTIMATE.start_main_~i~5 17), 72481#(<= ULTIMATE.start_main_~i~5 20), 72480#(<= ULTIMATE.start_main_~i~5 19), 72483#(<= ULTIMATE.start_main_~i~5 22), 72482#(<= ULTIMATE.start_main_~i~5 21), 72485#(<= ULTIMATE.start_main_~i~5 24), 72484#(<= ULTIMATE.start_main_~i~5 23), 72487#(<= ULTIMATE.start_main_~i~5 26), 72486#(<= ULTIMATE.start_main_~i~5 25), 72489#(<= ULTIMATE.start_main_~i~5 28), 72488#(<= ULTIMATE.start_main_~i~5 27), 72491#(<= ULTIMATE.start_main_~i~5 30), 72490#(<= ULTIMATE.start_main_~i~5 29), 72493#(<= ULTIMATE.start_main_~i~5 32), 72492#(<= ULTIMATE.start_main_~i~5 31), 72495#(<= ULTIMATE.start_main_~i~5 34), 72494#(<= ULTIMATE.start_main_~i~5 33), 72497#(<= ULTIMATE.start_main_~i~5 36), 72496#(<= ULTIMATE.start_main_~i~5 35), 72499#(<= ULTIMATE.start_main_~i~5 38), 72498#(<= ULTIMATE.start_main_~i~5 37), 72501#(<= ULTIMATE.start_main_~i~5 40), 72500#(<= ULTIMATE.start_main_~i~5 39), 72503#(<= ULTIMATE.start_main_~i~5 42), 72502#(<= ULTIMATE.start_main_~i~5 41), 72505#(<= ULTIMATE.start_main_~i~5 44), 72504#(<= ULTIMATE.start_main_~i~5 43), 72507#(<= ULTIMATE.start_main_~i~5 46), 72506#(<= ULTIMATE.start_main_~i~5 45), 72509#(<= ULTIMATE.start_main_~i~5 48), 72508#(<= ULTIMATE.start_main_~i~5 47), 72511#(<= ULTIMATE.start_main_~i~5 50), 72510#(<= ULTIMATE.start_main_~i~5 49), 72513#(<= ULTIMATE.start_main_~i~5 52), 72512#(<= ULTIMATE.start_main_~i~5 51), 72515#(<= ULTIMATE.start_main_~i~5 54), 72514#(<= ULTIMATE.start_main_~i~5 53), 72517#(<= ULTIMATE.start_main_~i~5 56), 72516#(<= ULTIMATE.start_main_~i~5 55), 72519#(<= ULTIMATE.start_main_~i~5 58), 72518#(<= ULTIMATE.start_main_~i~5 57), 72521#(<= ULTIMATE.start_main_~i~5 60), 72520#(<= ULTIMATE.start_main_~i~5 59), 72523#(<= ULTIMATE.start_main_~i~5 62), 72522#(<= ULTIMATE.start_main_~i~5 61), 72525#(<= ULTIMATE.start_main_~j~5 61), 72524#(<= ULTIMATE.start_main_~j~5 62), 72527#(<= ULTIMATE.start_main_~j~5 59), 72526#(<= ULTIMATE.start_main_~j~5 60), 72529#(<= ULTIMATE.start_main_~j~5 57), 72528#(<= ULTIMATE.start_main_~j~5 58), 72531#(<= ULTIMATE.start_main_~j~5 55), 72530#(<= ULTIMATE.start_main_~j~5 56), 72533#(<= ULTIMATE.start_main_~j~5 53), 72532#(<= ULTIMATE.start_main_~j~5 54), 72535#(<= ULTIMATE.start_main_~j~5 51), 72534#(<= ULTIMATE.start_main_~j~5 52), 72537#(<= ULTIMATE.start_main_~j~5 49), 72536#(<= ULTIMATE.start_main_~j~5 50), 72539#(<= ULTIMATE.start_main_~j~5 47), 72538#(<= ULTIMATE.start_main_~j~5 48), 72541#(<= ULTIMATE.start_main_~j~5 45), 72540#(<= ULTIMATE.start_main_~j~5 46), 72543#(<= ULTIMATE.start_main_~j~5 43), 72542#(<= ULTIMATE.start_main_~j~5 44), 72545#(<= ULTIMATE.start_main_~j~5 41), 72544#(<= ULTIMATE.start_main_~j~5 42), 72547#(<= ULTIMATE.start_main_~j~5 39), 72546#(<= ULTIMATE.start_main_~j~5 40), 72549#(<= ULTIMATE.start_main_~j~5 37), 72548#(<= ULTIMATE.start_main_~j~5 38), 72551#(<= ULTIMATE.start_main_~j~5 35), 72550#(<= ULTIMATE.start_main_~j~5 36), 72553#(<= ULTIMATE.start_main_~j~5 33), 72552#(<= ULTIMATE.start_main_~j~5 34), 72555#(<= ULTIMATE.start_main_~j~5 31), 72554#(<= ULTIMATE.start_main_~j~5 32), 72557#(<= ULTIMATE.start_main_~j~5 29), 72556#(<= ULTIMATE.start_main_~j~5 30), 72559#(<= ULTIMATE.start_main_~j~5 27), 72558#(<= ULTIMATE.start_main_~j~5 28), 72561#(<= ULTIMATE.start_main_~j~5 25), 72560#(<= ULTIMATE.start_main_~j~5 26), 72563#(<= ULTIMATE.start_main_~j~5 23), 72562#(<= ULTIMATE.start_main_~j~5 24), 72565#(<= ULTIMATE.start_main_~j~5 21), 72564#(<= ULTIMATE.start_main_~j~5 22), 72567#(<= ULTIMATE.start_main_~j~5 19), 72566#(<= ULTIMATE.start_main_~j~5 20), 72569#(<= ULTIMATE.start_main_~j~5 17), 72568#(<= ULTIMATE.start_main_~j~5 18), 72571#(<= ULTIMATE.start_main_~j~5 15), 72570#(<= ULTIMATE.start_main_~j~5 16), 72573#(<= ULTIMATE.start_main_~j~5 13), 72572#(<= ULTIMATE.start_main_~j~5 14), 72575#(<= ULTIMATE.start_main_~j~5 11), 72574#(<= ULTIMATE.start_main_~j~5 12), 72577#(<= ULTIMATE.start_main_~j~5 9), 72576#(<= ULTIMATE.start_main_~j~5 10), 72579#(<= ULTIMATE.start_main_~j~5 7), 72578#(<= ULTIMATE.start_main_~j~5 8), 72581#(<= ULTIMATE.start_main_~j~5 5), 72580#(<= ULTIMATE.start_main_~j~5 6), 72583#(<= ULTIMATE.start_main_~j~5 3), 72582#(<= ULTIMATE.start_main_~j~5 4), 72585#(<= ULTIMATE.start_main_~j~5 1), 72584#(<= ULTIMATE.start_main_~j~5 2), 72586#(<= ULTIMATE.start_main_~j~5 0)] [2018-07-23 13:41:39,324 INFO L134 CoverageAnalysis]: Checked inductivity of 5859 backedges. 3906 proven. 1953 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:39,324 INFO L450 AbstractCegarLoop]: Interpolant automaton has 128 states [2018-07-23 13:41:39,324 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 128 interpolants. [2018-07-23 13:41:39,325 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4159, Invalid=12097, Unknown=0, NotChecked=0, Total=16256 [2018-07-23 13:41:39,325 INFO L87 Difference]: Start difference. First operand 192 states and 193 transitions. Second operand 128 states. [2018-07-23 13:41:39,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:39,966 INFO L93 Difference]: Finished difference Result 322 states and 324 transitions. [2018-07-23 13:41:39,966 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2018-07-23 13:41:39,966 INFO L78 Accepts]: Start accepts. Automaton has 128 states. Word has length 191 [2018-07-23 13:41:39,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:39,967 INFO L225 Difference]: With dead ends: 322 [2018-07-23 13:41:39,967 INFO L226 Difference]: Without dead ends: 193 [2018-07-23 13:41:39,969 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 189 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5797 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=8317, Invalid=27973, Unknown=0, NotChecked=0, Total=36290 [2018-07-23 13:41:39,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2018-07-23 13:41:39,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2018-07-23 13:41:39,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2018-07-23 13:41:39,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 194 transitions. [2018-07-23 13:41:39,989 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 194 transitions. Word has length 191 [2018-07-23 13:41:39,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:39,989 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 194 transitions. [2018-07-23 13:41:39,989 INFO L472 AbstractCegarLoop]: Interpolant automaton has 128 states. [2018-07-23 13:41:39,990 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 194 transitions. [2018-07-23 13:41:39,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2018-07-23 13:41:39,990 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:39,991 INFO L357 BasicCegarLoop]: trace histogram [63, 63, 62, 1, 1, 1, 1] [2018-07-23 13:41:39,991 INFO L414 AbstractCegarLoop]: === Iteration 126 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:39,991 INFO L82 PathProgramCache]: Analyzing trace with hash 419419250, now seen corresponding path program 124 times [2018-07-23 13:41:39,991 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:40,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:40,200 INFO L134 CoverageAnalysis]: Checked inductivity of 5922 backedges. 2016 proven. 3906 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:40,201 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:40,201 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [66] total 66 [2018-07-23 13:41:40,201 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:40,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:40,201 INFO L185 omatonBuilderFactory]: Interpolants [73743#true, 73745#(<= 0 ULTIMATE.start_main_~k~5), 73744#false, 73747#(<= 2 ULTIMATE.start_main_~k~5), 73746#(<= 1 ULTIMATE.start_main_~k~5), 73749#(<= 4 ULTIMATE.start_main_~k~5), 73748#(<= 3 ULTIMATE.start_main_~k~5), 73751#(<= 6 ULTIMATE.start_main_~k~5), 73750#(<= 5 ULTIMATE.start_main_~k~5), 73753#(<= 8 ULTIMATE.start_main_~k~5), 73752#(<= 7 ULTIMATE.start_main_~k~5), 73755#(<= 10 ULTIMATE.start_main_~k~5), 73754#(<= 9 ULTIMATE.start_main_~k~5), 73757#(<= 12 ULTIMATE.start_main_~k~5), 73756#(<= 11 ULTIMATE.start_main_~k~5), 73759#(<= 14 ULTIMATE.start_main_~k~5), 73758#(<= 13 ULTIMATE.start_main_~k~5), 73761#(<= 16 ULTIMATE.start_main_~k~5), 73760#(<= 15 ULTIMATE.start_main_~k~5), 73763#(<= 18 ULTIMATE.start_main_~k~5), 73762#(<= 17 ULTIMATE.start_main_~k~5), 73765#(<= 20 ULTIMATE.start_main_~k~5), 73764#(<= 19 ULTIMATE.start_main_~k~5), 73767#(<= 22 ULTIMATE.start_main_~k~5), 73766#(<= 21 ULTIMATE.start_main_~k~5), 73769#(<= 24 ULTIMATE.start_main_~k~5), 73768#(<= 23 ULTIMATE.start_main_~k~5), 73771#(<= 26 ULTIMATE.start_main_~k~5), 73770#(<= 25 ULTIMATE.start_main_~k~5), 73773#(<= 28 ULTIMATE.start_main_~k~5), 73772#(<= 27 ULTIMATE.start_main_~k~5), 73775#(<= 30 ULTIMATE.start_main_~k~5), 73774#(<= 29 ULTIMATE.start_main_~k~5), 73777#(<= 32 ULTIMATE.start_main_~k~5), 73776#(<= 31 ULTIMATE.start_main_~k~5), 73779#(<= 34 ULTIMATE.start_main_~k~5), 73778#(<= 33 ULTIMATE.start_main_~k~5), 73781#(<= 36 ULTIMATE.start_main_~k~5), 73780#(<= 35 ULTIMATE.start_main_~k~5), 73783#(<= 38 ULTIMATE.start_main_~k~5), 73782#(<= 37 ULTIMATE.start_main_~k~5), 73785#(<= 40 ULTIMATE.start_main_~k~5), 73784#(<= 39 ULTIMATE.start_main_~k~5), 73787#(<= 42 ULTIMATE.start_main_~k~5), 73786#(<= 41 ULTIMATE.start_main_~k~5), 73789#(<= 44 ULTIMATE.start_main_~k~5), 73788#(<= 43 ULTIMATE.start_main_~k~5), 73791#(<= 46 ULTIMATE.start_main_~k~5), 73790#(<= 45 ULTIMATE.start_main_~k~5), 73793#(<= 48 ULTIMATE.start_main_~k~5), 73792#(<= 47 ULTIMATE.start_main_~k~5), 73795#(<= 50 ULTIMATE.start_main_~k~5), 73794#(<= 49 ULTIMATE.start_main_~k~5), 73797#(<= 52 ULTIMATE.start_main_~k~5), 73796#(<= 51 ULTIMATE.start_main_~k~5), 73799#(<= 54 ULTIMATE.start_main_~k~5), 73798#(<= 53 ULTIMATE.start_main_~k~5), 73801#(<= 56 ULTIMATE.start_main_~k~5), 73800#(<= 55 ULTIMATE.start_main_~k~5), 73803#(<= 58 ULTIMATE.start_main_~k~5), 73802#(<= 57 ULTIMATE.start_main_~k~5), 73805#(<= 60 ULTIMATE.start_main_~k~5), 73804#(<= 59 ULTIMATE.start_main_~k~5), 73807#(<= 62 ULTIMATE.start_main_~k~5), 73806#(<= 61 ULTIMATE.start_main_~k~5), 73809#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 73808#(<= 63 ULTIMATE.start_main_~k~5)] [2018-07-23 13:41:40,202 INFO L134 CoverageAnalysis]: Checked inductivity of 5922 backedges. 2016 proven. 3906 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:40,202 INFO L450 AbstractCegarLoop]: Interpolant automaton has 67 states [2018-07-23 13:41:40,202 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2018-07-23 13:41:40,203 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2147, Invalid=2275, Unknown=0, NotChecked=0, Total=4422 [2018-07-23 13:41:40,203 INFO L87 Difference]: Start difference. First operand 193 states and 194 transitions. Second operand 67 states. [2018-07-23 13:41:40,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:40,465 INFO L93 Difference]: Finished difference Result 201 states and 202 transitions. [2018-07-23 13:41:40,466 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2018-07-23 13:41:40,466 INFO L78 Accepts]: Start accepts. Automaton has 67 states. Word has length 192 [2018-07-23 13:41:40,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:40,467 INFO L225 Difference]: With dead ends: 201 [2018-07-23 13:41:40,467 INFO L226 Difference]: Without dead ends: 199 [2018-07-23 13:41:40,468 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4032 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6435, Invalid=10595, Unknown=0, NotChecked=0, Total=17030 [2018-07-23 13:41:40,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2018-07-23 13:41:40,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 195. [2018-07-23 13:41:40,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2018-07-23 13:41:40,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 196 transitions. [2018-07-23 13:41:40,497 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 196 transitions. Word has length 192 [2018-07-23 13:41:40,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:40,498 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 196 transitions. [2018-07-23 13:41:40,498 INFO L472 AbstractCegarLoop]: Interpolant automaton has 67 states. [2018-07-23 13:41:40,498 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 196 transitions. [2018-07-23 13:41:40,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2018-07-23 13:41:40,499 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:40,499 INFO L357 BasicCegarLoop]: trace histogram [64, 63, 63, 1, 1, 1, 1] [2018-07-23 13:41:40,499 INFO L414 AbstractCegarLoop]: === Iteration 127 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:40,500 INFO L82 PathProgramCache]: Analyzing trace with hash -664960550, now seen corresponding path program 125 times [2018-07-23 13:41:40,500 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:40,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:40,858 INFO L134 CoverageAnalysis]: Checked inductivity of 6048 backedges. 4032 proven. 2016 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:40,859 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:40,859 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [129] total 129 [2018-07-23 13:41:40,859 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:40,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:40,859 INFO L185 omatonBuilderFactory]: Interpolants [74753#(<= ULTIMATE.start_main_~i~5 21), 74752#(<= ULTIMATE.start_main_~i~5 20), 74755#(<= ULTIMATE.start_main_~i~5 23), 74754#(<= ULTIMATE.start_main_~i~5 22), 74757#(<= ULTIMATE.start_main_~i~5 25), 74756#(<= ULTIMATE.start_main_~i~5 24), 74759#(<= ULTIMATE.start_main_~i~5 27), 74758#(<= ULTIMATE.start_main_~i~5 26), 74761#(<= ULTIMATE.start_main_~i~5 29), 74760#(<= ULTIMATE.start_main_~i~5 28), 74763#(<= ULTIMATE.start_main_~i~5 31), 74762#(<= ULTIMATE.start_main_~i~5 30), 74765#(<= ULTIMATE.start_main_~i~5 33), 74764#(<= ULTIMATE.start_main_~i~5 32), 74767#(<= ULTIMATE.start_main_~i~5 35), 74766#(<= ULTIMATE.start_main_~i~5 34), 74769#(<= ULTIMATE.start_main_~i~5 37), 74768#(<= ULTIMATE.start_main_~i~5 36), 74771#(<= ULTIMATE.start_main_~i~5 39), 74770#(<= ULTIMATE.start_main_~i~5 38), 74773#(<= ULTIMATE.start_main_~i~5 41), 74772#(<= ULTIMATE.start_main_~i~5 40), 74775#(<= ULTIMATE.start_main_~i~5 43), 74774#(<= ULTIMATE.start_main_~i~5 42), 74777#(<= ULTIMATE.start_main_~i~5 45), 74776#(<= ULTIMATE.start_main_~i~5 44), 74779#(<= ULTIMATE.start_main_~i~5 47), 74778#(<= ULTIMATE.start_main_~i~5 46), 74781#(<= ULTIMATE.start_main_~i~5 49), 74780#(<= ULTIMATE.start_main_~i~5 48), 74783#(<= ULTIMATE.start_main_~i~5 51), 74782#(<= ULTIMATE.start_main_~i~5 50), 74785#(<= ULTIMATE.start_main_~i~5 53), 74784#(<= ULTIMATE.start_main_~i~5 52), 74787#(<= ULTIMATE.start_main_~i~5 55), 74786#(<= ULTIMATE.start_main_~i~5 54), 74789#(<= ULTIMATE.start_main_~i~5 57), 74788#(<= ULTIMATE.start_main_~i~5 56), 74791#(<= ULTIMATE.start_main_~i~5 59), 74790#(<= ULTIMATE.start_main_~i~5 58), 74793#(<= ULTIMATE.start_main_~i~5 61), 74792#(<= ULTIMATE.start_main_~i~5 60), 74795#(<= ULTIMATE.start_main_~i~5 63), 74794#(<= ULTIMATE.start_main_~i~5 62), 74797#(<= ULTIMATE.start_main_~j~5 62), 74796#(<= ULTIMATE.start_main_~j~5 63), 74799#(<= ULTIMATE.start_main_~j~5 60), 74798#(<= ULTIMATE.start_main_~j~5 61), 74801#(<= ULTIMATE.start_main_~j~5 58), 74800#(<= ULTIMATE.start_main_~j~5 59), 74803#(<= ULTIMATE.start_main_~j~5 56), 74802#(<= ULTIMATE.start_main_~j~5 57), 74805#(<= ULTIMATE.start_main_~j~5 54), 74804#(<= ULTIMATE.start_main_~j~5 55), 74807#(<= ULTIMATE.start_main_~j~5 52), 74806#(<= ULTIMATE.start_main_~j~5 53), 74809#(<= ULTIMATE.start_main_~j~5 50), 74808#(<= ULTIMATE.start_main_~j~5 51), 74811#(<= ULTIMATE.start_main_~j~5 48), 74810#(<= ULTIMATE.start_main_~j~5 49), 74813#(<= ULTIMATE.start_main_~j~5 46), 74812#(<= ULTIMATE.start_main_~j~5 47), 74815#(<= ULTIMATE.start_main_~j~5 44), 74814#(<= ULTIMATE.start_main_~j~5 45), 74817#(<= ULTIMATE.start_main_~j~5 42), 74816#(<= ULTIMATE.start_main_~j~5 43), 74819#(<= ULTIMATE.start_main_~j~5 40), 74818#(<= ULTIMATE.start_main_~j~5 41), 74821#(<= ULTIMATE.start_main_~j~5 38), 74820#(<= ULTIMATE.start_main_~j~5 39), 74823#(<= ULTIMATE.start_main_~j~5 36), 74822#(<= ULTIMATE.start_main_~j~5 37), 74825#(<= ULTIMATE.start_main_~j~5 34), 74824#(<= ULTIMATE.start_main_~j~5 35), 74827#(<= ULTIMATE.start_main_~j~5 32), 74826#(<= ULTIMATE.start_main_~j~5 33), 74829#(<= ULTIMATE.start_main_~j~5 30), 74828#(<= ULTIMATE.start_main_~j~5 31), 74831#(<= ULTIMATE.start_main_~j~5 28), 74830#(<= ULTIMATE.start_main_~j~5 29), 74833#(<= ULTIMATE.start_main_~j~5 26), 74832#(<= ULTIMATE.start_main_~j~5 27), 74835#(<= ULTIMATE.start_main_~j~5 24), 74834#(<= ULTIMATE.start_main_~j~5 25), 74837#(<= ULTIMATE.start_main_~j~5 22), 74836#(<= ULTIMATE.start_main_~j~5 23), 74839#(<= ULTIMATE.start_main_~j~5 20), 74838#(<= ULTIMATE.start_main_~j~5 21), 74841#(<= ULTIMATE.start_main_~j~5 18), 74840#(<= ULTIMATE.start_main_~j~5 19), 74843#(<= ULTIMATE.start_main_~j~5 16), 74842#(<= ULTIMATE.start_main_~j~5 17), 74845#(<= ULTIMATE.start_main_~j~5 14), 74844#(<= ULTIMATE.start_main_~j~5 15), 74847#(<= ULTIMATE.start_main_~j~5 12), 74846#(<= ULTIMATE.start_main_~j~5 13), 74849#(<= ULTIMATE.start_main_~j~5 10), 74848#(<= ULTIMATE.start_main_~j~5 11), 74851#(<= ULTIMATE.start_main_~j~5 8), 74850#(<= ULTIMATE.start_main_~j~5 9), 74853#(<= ULTIMATE.start_main_~j~5 6), 74852#(<= ULTIMATE.start_main_~j~5 7), 74855#(<= ULTIMATE.start_main_~j~5 4), 74854#(<= ULTIMATE.start_main_~j~5 5), 74857#(<= ULTIMATE.start_main_~j~5 2), 74856#(<= ULTIMATE.start_main_~j~5 3), 74859#(<= ULTIMATE.start_main_~j~5 0), 74858#(<= ULTIMATE.start_main_~j~5 1), 74731#false, 74730#true, 74733#(<= ULTIMATE.start_main_~i~5 1), 74732#(<= ULTIMATE.start_main_~i~5 0), 74735#(<= ULTIMATE.start_main_~i~5 3), 74734#(<= ULTIMATE.start_main_~i~5 2), 74737#(<= ULTIMATE.start_main_~i~5 5), 74736#(<= ULTIMATE.start_main_~i~5 4), 74739#(<= ULTIMATE.start_main_~i~5 7), 74738#(<= ULTIMATE.start_main_~i~5 6), 74741#(<= ULTIMATE.start_main_~i~5 9), 74740#(<= ULTIMATE.start_main_~i~5 8), 74743#(<= ULTIMATE.start_main_~i~5 11), 74742#(<= ULTIMATE.start_main_~i~5 10), 74745#(<= ULTIMATE.start_main_~i~5 13), 74744#(<= ULTIMATE.start_main_~i~5 12), 74747#(<= ULTIMATE.start_main_~i~5 15), 74746#(<= ULTIMATE.start_main_~i~5 14), 74749#(<= ULTIMATE.start_main_~i~5 17), 74748#(<= ULTIMATE.start_main_~i~5 16), 74751#(<= ULTIMATE.start_main_~i~5 19), 74750#(<= ULTIMATE.start_main_~i~5 18)] [2018-07-23 13:41:40,860 INFO L134 CoverageAnalysis]: Checked inductivity of 6048 backedges. 4032 proven. 2016 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:40,860 INFO L450 AbstractCegarLoop]: Interpolant automaton has 130 states [2018-07-23 13:41:40,861 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2018-07-23 13:41:40,861 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4289, Invalid=12481, Unknown=0, NotChecked=0, Total=16770 [2018-07-23 13:41:40,862 INFO L87 Difference]: Start difference. First operand 195 states and 196 transitions. Second operand 130 states. [2018-07-23 13:41:41,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:41,474 INFO L93 Difference]: Finished difference Result 327 states and 329 transitions. [2018-07-23 13:41:41,474 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2018-07-23 13:41:41,474 INFO L78 Accepts]: Start accepts. Automaton has 130 states. Word has length 194 [2018-07-23 13:41:41,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:41,475 INFO L225 Difference]: With dead ends: 327 [2018-07-23 13:41:41,475 INFO L226 Difference]: Without dead ends: 196 [2018-07-23 13:41:41,476 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 192 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5985 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=8577, Invalid=28865, Unknown=0, NotChecked=0, Total=37442 [2018-07-23 13:41:41,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2018-07-23 13:41:41,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2018-07-23 13:41:41,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196 states. [2018-07-23 13:41:41,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 197 transitions. [2018-07-23 13:41:41,500 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 197 transitions. Word has length 194 [2018-07-23 13:41:41,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:41,500 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 197 transitions. [2018-07-23 13:41:41,500 INFO L472 AbstractCegarLoop]: Interpolant automaton has 130 states. [2018-07-23 13:41:41,500 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 197 transitions. [2018-07-23 13:41:41,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2018-07-23 13:41:41,501 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:41,501 INFO L357 BasicCegarLoop]: trace histogram [64, 64, 63, 1, 1, 1, 1] [2018-07-23 13:41:41,501 INFO L414 AbstractCegarLoop]: === Iteration 128 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:41,502 INFO L82 PathProgramCache]: Analyzing trace with hash 1441471251, now seen corresponding path program 126 times [2018-07-23 13:41:41,502 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:41,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:41,728 INFO L134 CoverageAnalysis]: Checked inductivity of 6112 backedges. 2080 proven. 4032 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:41,728 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:41,729 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [67] total 67 [2018-07-23 13:41:41,729 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:41,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:41,730 INFO L185 omatonBuilderFactory]: Interpolants [76035#false, 76034#true, 76037#(<= 1 ULTIMATE.start_main_~k~5), 76036#(<= 0 ULTIMATE.start_main_~k~5), 76039#(<= 3 ULTIMATE.start_main_~k~5), 76038#(<= 2 ULTIMATE.start_main_~k~5), 76041#(<= 5 ULTIMATE.start_main_~k~5), 76040#(<= 4 ULTIMATE.start_main_~k~5), 76043#(<= 7 ULTIMATE.start_main_~k~5), 76042#(<= 6 ULTIMATE.start_main_~k~5), 76045#(<= 9 ULTIMATE.start_main_~k~5), 76044#(<= 8 ULTIMATE.start_main_~k~5), 76047#(<= 11 ULTIMATE.start_main_~k~5), 76046#(<= 10 ULTIMATE.start_main_~k~5), 76049#(<= 13 ULTIMATE.start_main_~k~5), 76048#(<= 12 ULTIMATE.start_main_~k~5), 76051#(<= 15 ULTIMATE.start_main_~k~5), 76050#(<= 14 ULTIMATE.start_main_~k~5), 76053#(<= 17 ULTIMATE.start_main_~k~5), 76052#(<= 16 ULTIMATE.start_main_~k~5), 76055#(<= 19 ULTIMATE.start_main_~k~5), 76054#(<= 18 ULTIMATE.start_main_~k~5), 76057#(<= 21 ULTIMATE.start_main_~k~5), 76056#(<= 20 ULTIMATE.start_main_~k~5), 76059#(<= 23 ULTIMATE.start_main_~k~5), 76058#(<= 22 ULTIMATE.start_main_~k~5), 76061#(<= 25 ULTIMATE.start_main_~k~5), 76060#(<= 24 ULTIMATE.start_main_~k~5), 76063#(<= 27 ULTIMATE.start_main_~k~5), 76062#(<= 26 ULTIMATE.start_main_~k~5), 76065#(<= 29 ULTIMATE.start_main_~k~5), 76064#(<= 28 ULTIMATE.start_main_~k~5), 76067#(<= 31 ULTIMATE.start_main_~k~5), 76066#(<= 30 ULTIMATE.start_main_~k~5), 76069#(<= 33 ULTIMATE.start_main_~k~5), 76068#(<= 32 ULTIMATE.start_main_~k~5), 76071#(<= 35 ULTIMATE.start_main_~k~5), 76070#(<= 34 ULTIMATE.start_main_~k~5), 76073#(<= 37 ULTIMATE.start_main_~k~5), 76072#(<= 36 ULTIMATE.start_main_~k~5), 76075#(<= 39 ULTIMATE.start_main_~k~5), 76074#(<= 38 ULTIMATE.start_main_~k~5), 76077#(<= 41 ULTIMATE.start_main_~k~5), 76076#(<= 40 ULTIMATE.start_main_~k~5), 76079#(<= 43 ULTIMATE.start_main_~k~5), 76078#(<= 42 ULTIMATE.start_main_~k~5), 76081#(<= 45 ULTIMATE.start_main_~k~5), 76080#(<= 44 ULTIMATE.start_main_~k~5), 76083#(<= 47 ULTIMATE.start_main_~k~5), 76082#(<= 46 ULTIMATE.start_main_~k~5), 76085#(<= 49 ULTIMATE.start_main_~k~5), 76084#(<= 48 ULTIMATE.start_main_~k~5), 76087#(<= 51 ULTIMATE.start_main_~k~5), 76086#(<= 50 ULTIMATE.start_main_~k~5), 76089#(<= 53 ULTIMATE.start_main_~k~5), 76088#(<= 52 ULTIMATE.start_main_~k~5), 76091#(<= 55 ULTIMATE.start_main_~k~5), 76090#(<= 54 ULTIMATE.start_main_~k~5), 76093#(<= 57 ULTIMATE.start_main_~k~5), 76092#(<= 56 ULTIMATE.start_main_~k~5), 76095#(<= 59 ULTIMATE.start_main_~k~5), 76094#(<= 58 ULTIMATE.start_main_~k~5), 76097#(<= 61 ULTIMATE.start_main_~k~5), 76096#(<= 60 ULTIMATE.start_main_~k~5), 76099#(<= 63 ULTIMATE.start_main_~k~5), 76098#(<= 62 ULTIMATE.start_main_~k~5), 76101#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 76100#(<= 64 ULTIMATE.start_main_~k~5)] [2018-07-23 13:41:41,730 INFO L134 CoverageAnalysis]: Checked inductivity of 6112 backedges. 2080 proven. 4032 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:41,730 INFO L450 AbstractCegarLoop]: Interpolant automaton has 68 states [2018-07-23 13:41:41,731 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2018-07-23 13:41:41,731 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2213, Invalid=2343, Unknown=0, NotChecked=0, Total=4556 [2018-07-23 13:41:41,731 INFO L87 Difference]: Start difference. First operand 196 states and 197 transitions. Second operand 68 states. [2018-07-23 13:41:41,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:41,942 INFO L93 Difference]: Finished difference Result 204 states and 205 transitions. [2018-07-23 13:41:41,942 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2018-07-23 13:41:41,943 INFO L78 Accepts]: Start accepts. Automaton has 68 states. Word has length 195 [2018-07-23 13:41:41,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:41,943 INFO L225 Difference]: With dead ends: 204 [2018-07-23 13:41:41,943 INFO L226 Difference]: Without dead ends: 202 [2018-07-23 13:41:41,945 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4160 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6633, Invalid=10923, Unknown=0, NotChecked=0, Total=17556 [2018-07-23 13:41:41,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2018-07-23 13:41:41,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 198. [2018-07-23 13:41:41,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2018-07-23 13:41:41,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 199 transitions. [2018-07-23 13:41:41,973 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 199 transitions. Word has length 195 [2018-07-23 13:41:41,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:41,974 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 199 transitions. [2018-07-23 13:41:41,974 INFO L472 AbstractCegarLoop]: Interpolant automaton has 68 states. [2018-07-23 13:41:41,974 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 199 transitions. [2018-07-23 13:41:41,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2018-07-23 13:41:41,975 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:41,975 INFO L357 BasicCegarLoop]: trace histogram [65, 64, 64, 1, 1, 1, 1] [2018-07-23 13:41:41,975 INFO L414 AbstractCegarLoop]: === Iteration 129 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:41,975 INFO L82 PathProgramCache]: Analyzing trace with hash -2020498373, now seen corresponding path program 127 times [2018-07-23 13:41:41,975 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:42,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:42,383 INFO L134 CoverageAnalysis]: Checked inductivity of 6240 backedges. 4160 proven. 2080 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:42,383 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:42,383 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [131] total 131 [2018-07-23 13:41:42,384 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:42,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:42,384 INFO L185 omatonBuilderFactory]: Interpolants [77057#(<= ULTIMATE.start_main_~i~5 19), 77056#(<= ULTIMATE.start_main_~i~5 18), 77059#(<= ULTIMATE.start_main_~i~5 21), 77058#(<= ULTIMATE.start_main_~i~5 20), 77061#(<= ULTIMATE.start_main_~i~5 23), 77060#(<= ULTIMATE.start_main_~i~5 22), 77063#(<= ULTIMATE.start_main_~i~5 25), 77062#(<= ULTIMATE.start_main_~i~5 24), 77065#(<= ULTIMATE.start_main_~i~5 27), 77064#(<= ULTIMATE.start_main_~i~5 26), 77067#(<= ULTIMATE.start_main_~i~5 29), 77066#(<= ULTIMATE.start_main_~i~5 28), 77069#(<= ULTIMATE.start_main_~i~5 31), 77068#(<= ULTIMATE.start_main_~i~5 30), 77071#(<= ULTIMATE.start_main_~i~5 33), 77070#(<= ULTIMATE.start_main_~i~5 32), 77073#(<= ULTIMATE.start_main_~i~5 35), 77072#(<= ULTIMATE.start_main_~i~5 34), 77075#(<= ULTIMATE.start_main_~i~5 37), 77074#(<= ULTIMATE.start_main_~i~5 36), 77077#(<= ULTIMATE.start_main_~i~5 39), 77076#(<= ULTIMATE.start_main_~i~5 38), 77079#(<= ULTIMATE.start_main_~i~5 41), 77078#(<= ULTIMATE.start_main_~i~5 40), 77081#(<= ULTIMATE.start_main_~i~5 43), 77080#(<= ULTIMATE.start_main_~i~5 42), 77083#(<= ULTIMATE.start_main_~i~5 45), 77082#(<= ULTIMATE.start_main_~i~5 44), 77085#(<= ULTIMATE.start_main_~i~5 47), 77084#(<= ULTIMATE.start_main_~i~5 46), 77087#(<= ULTIMATE.start_main_~i~5 49), 77086#(<= ULTIMATE.start_main_~i~5 48), 77089#(<= ULTIMATE.start_main_~i~5 51), 77088#(<= ULTIMATE.start_main_~i~5 50), 77091#(<= ULTIMATE.start_main_~i~5 53), 77090#(<= ULTIMATE.start_main_~i~5 52), 77093#(<= ULTIMATE.start_main_~i~5 55), 77092#(<= ULTIMATE.start_main_~i~5 54), 77095#(<= ULTIMATE.start_main_~i~5 57), 77094#(<= ULTIMATE.start_main_~i~5 56), 77097#(<= ULTIMATE.start_main_~i~5 59), 77096#(<= ULTIMATE.start_main_~i~5 58), 77099#(<= ULTIMATE.start_main_~i~5 61), 77098#(<= ULTIMATE.start_main_~i~5 60), 77101#(<= ULTIMATE.start_main_~i~5 63), 77100#(<= ULTIMATE.start_main_~i~5 62), 77103#(<= ULTIMATE.start_main_~j~5 64), 77102#(<= ULTIMATE.start_main_~i~5 64), 77105#(<= ULTIMATE.start_main_~j~5 62), 77104#(<= ULTIMATE.start_main_~j~5 63), 77107#(<= ULTIMATE.start_main_~j~5 60), 77106#(<= ULTIMATE.start_main_~j~5 61), 77109#(<= ULTIMATE.start_main_~j~5 58), 77108#(<= ULTIMATE.start_main_~j~5 59), 77111#(<= ULTIMATE.start_main_~j~5 56), 77110#(<= ULTIMATE.start_main_~j~5 57), 77113#(<= ULTIMATE.start_main_~j~5 54), 77112#(<= ULTIMATE.start_main_~j~5 55), 77115#(<= ULTIMATE.start_main_~j~5 52), 77114#(<= ULTIMATE.start_main_~j~5 53), 77117#(<= ULTIMATE.start_main_~j~5 50), 77116#(<= ULTIMATE.start_main_~j~5 51), 77119#(<= ULTIMATE.start_main_~j~5 48), 77118#(<= ULTIMATE.start_main_~j~5 49), 77121#(<= ULTIMATE.start_main_~j~5 46), 77120#(<= ULTIMATE.start_main_~j~5 47), 77123#(<= ULTIMATE.start_main_~j~5 44), 77122#(<= ULTIMATE.start_main_~j~5 45), 77125#(<= ULTIMATE.start_main_~j~5 42), 77124#(<= ULTIMATE.start_main_~j~5 43), 77127#(<= ULTIMATE.start_main_~j~5 40), 77126#(<= ULTIMATE.start_main_~j~5 41), 77129#(<= ULTIMATE.start_main_~j~5 38), 77128#(<= ULTIMATE.start_main_~j~5 39), 77131#(<= ULTIMATE.start_main_~j~5 36), 77130#(<= ULTIMATE.start_main_~j~5 37), 77133#(<= ULTIMATE.start_main_~j~5 34), 77132#(<= ULTIMATE.start_main_~j~5 35), 77135#(<= ULTIMATE.start_main_~j~5 32), 77134#(<= ULTIMATE.start_main_~j~5 33), 77137#(<= ULTIMATE.start_main_~j~5 30), 77136#(<= ULTIMATE.start_main_~j~5 31), 77139#(<= ULTIMATE.start_main_~j~5 28), 77138#(<= ULTIMATE.start_main_~j~5 29), 77141#(<= ULTIMATE.start_main_~j~5 26), 77140#(<= ULTIMATE.start_main_~j~5 27), 77143#(<= ULTIMATE.start_main_~j~5 24), 77142#(<= ULTIMATE.start_main_~j~5 25), 77145#(<= ULTIMATE.start_main_~j~5 22), 77144#(<= ULTIMATE.start_main_~j~5 23), 77147#(<= ULTIMATE.start_main_~j~5 20), 77146#(<= ULTIMATE.start_main_~j~5 21), 77149#(<= ULTIMATE.start_main_~j~5 18), 77148#(<= ULTIMATE.start_main_~j~5 19), 77151#(<= ULTIMATE.start_main_~j~5 16), 77150#(<= ULTIMATE.start_main_~j~5 17), 77153#(<= ULTIMATE.start_main_~j~5 14), 77152#(<= ULTIMATE.start_main_~j~5 15), 77155#(<= ULTIMATE.start_main_~j~5 12), 77154#(<= ULTIMATE.start_main_~j~5 13), 77157#(<= ULTIMATE.start_main_~j~5 10), 77156#(<= ULTIMATE.start_main_~j~5 11), 77159#(<= ULTIMATE.start_main_~j~5 8), 77158#(<= ULTIMATE.start_main_~j~5 9), 77161#(<= ULTIMATE.start_main_~j~5 6), 77160#(<= ULTIMATE.start_main_~j~5 7), 77163#(<= ULTIMATE.start_main_~j~5 4), 77162#(<= ULTIMATE.start_main_~j~5 5), 77165#(<= ULTIMATE.start_main_~j~5 2), 77164#(<= ULTIMATE.start_main_~j~5 3), 77167#(<= ULTIMATE.start_main_~j~5 0), 77166#(<= ULTIMATE.start_main_~j~5 1), 77037#false, 77036#true, 77039#(<= ULTIMATE.start_main_~i~5 1), 77038#(<= ULTIMATE.start_main_~i~5 0), 77041#(<= ULTIMATE.start_main_~i~5 3), 77040#(<= ULTIMATE.start_main_~i~5 2), 77043#(<= ULTIMATE.start_main_~i~5 5), 77042#(<= ULTIMATE.start_main_~i~5 4), 77045#(<= ULTIMATE.start_main_~i~5 7), 77044#(<= ULTIMATE.start_main_~i~5 6), 77047#(<= ULTIMATE.start_main_~i~5 9), 77046#(<= ULTIMATE.start_main_~i~5 8), 77049#(<= ULTIMATE.start_main_~i~5 11), 77048#(<= ULTIMATE.start_main_~i~5 10), 77051#(<= ULTIMATE.start_main_~i~5 13), 77050#(<= ULTIMATE.start_main_~i~5 12), 77053#(<= ULTIMATE.start_main_~i~5 15), 77052#(<= ULTIMATE.start_main_~i~5 14), 77055#(<= ULTIMATE.start_main_~i~5 17), 77054#(<= ULTIMATE.start_main_~i~5 16)] [2018-07-23 13:41:42,385 INFO L134 CoverageAnalysis]: Checked inductivity of 6240 backedges. 4160 proven. 2080 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:42,385 INFO L450 AbstractCegarLoop]: Interpolant automaton has 132 states [2018-07-23 13:41:42,386 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 132 interpolants. [2018-07-23 13:41:42,386 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4421, Invalid=12871, Unknown=0, NotChecked=0, Total=17292 [2018-07-23 13:41:42,387 INFO L87 Difference]: Start difference. First operand 198 states and 199 transitions. Second operand 132 states. [2018-07-23 13:41:43,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:43,104 INFO L93 Difference]: Finished difference Result 332 states and 334 transitions. [2018-07-23 13:41:43,104 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2018-07-23 13:41:43,104 INFO L78 Accepts]: Start accepts. Automaton has 132 states. Word has length 197 [2018-07-23 13:41:43,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:43,105 INFO L225 Difference]: With dead ends: 332 [2018-07-23 13:41:43,105 INFO L226 Difference]: Without dead ends: 199 [2018-07-23 13:41:43,108 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 195 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6176 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=8841, Invalid=29771, Unknown=0, NotChecked=0, Total=38612 [2018-07-23 13:41:43,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2018-07-23 13:41:43,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2018-07-23 13:41:43,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2018-07-23 13:41:43,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 200 transitions. [2018-07-23 13:41:43,131 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 200 transitions. Word has length 197 [2018-07-23 13:41:43,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:43,131 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 200 transitions. [2018-07-23 13:41:43,131 INFO L472 AbstractCegarLoop]: Interpolant automaton has 132 states. [2018-07-23 13:41:43,131 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 200 transitions. [2018-07-23 13:41:43,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2018-07-23 13:41:43,132 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:43,132 INFO L357 BasicCegarLoop]: trace histogram [65, 65, 64, 1, 1, 1, 1] [2018-07-23 13:41:43,133 INFO L414 AbstractCegarLoop]: === Iteration 130 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:43,133 INFO L82 PathProgramCache]: Analyzing trace with hash 1217090658, now seen corresponding path program 128 times [2018-07-23 13:41:43,133 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:43,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:43,435 INFO L134 CoverageAnalysis]: Checked inductivity of 6305 backedges. 2145 proven. 4160 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:43,435 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:43,435 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [68] total 68 [2018-07-23 13:41:43,436 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:43,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:43,436 INFO L185 omatonBuilderFactory]: Interpolants [78361#false, 78360#true, 78363#(<= 1 ULTIMATE.start_main_~k~5), 78362#(<= 0 ULTIMATE.start_main_~k~5), 78365#(<= 3 ULTIMATE.start_main_~k~5), 78364#(<= 2 ULTIMATE.start_main_~k~5), 78367#(<= 5 ULTIMATE.start_main_~k~5), 78366#(<= 4 ULTIMATE.start_main_~k~5), 78369#(<= 7 ULTIMATE.start_main_~k~5), 78368#(<= 6 ULTIMATE.start_main_~k~5), 78371#(<= 9 ULTIMATE.start_main_~k~5), 78370#(<= 8 ULTIMATE.start_main_~k~5), 78373#(<= 11 ULTIMATE.start_main_~k~5), 78372#(<= 10 ULTIMATE.start_main_~k~5), 78375#(<= 13 ULTIMATE.start_main_~k~5), 78374#(<= 12 ULTIMATE.start_main_~k~5), 78377#(<= 15 ULTIMATE.start_main_~k~5), 78376#(<= 14 ULTIMATE.start_main_~k~5), 78379#(<= 17 ULTIMATE.start_main_~k~5), 78378#(<= 16 ULTIMATE.start_main_~k~5), 78381#(<= 19 ULTIMATE.start_main_~k~5), 78380#(<= 18 ULTIMATE.start_main_~k~5), 78383#(<= 21 ULTIMATE.start_main_~k~5), 78382#(<= 20 ULTIMATE.start_main_~k~5), 78385#(<= 23 ULTIMATE.start_main_~k~5), 78384#(<= 22 ULTIMATE.start_main_~k~5), 78387#(<= 25 ULTIMATE.start_main_~k~5), 78386#(<= 24 ULTIMATE.start_main_~k~5), 78389#(<= 27 ULTIMATE.start_main_~k~5), 78388#(<= 26 ULTIMATE.start_main_~k~5), 78391#(<= 29 ULTIMATE.start_main_~k~5), 78390#(<= 28 ULTIMATE.start_main_~k~5), 78393#(<= 31 ULTIMATE.start_main_~k~5), 78392#(<= 30 ULTIMATE.start_main_~k~5), 78395#(<= 33 ULTIMATE.start_main_~k~5), 78394#(<= 32 ULTIMATE.start_main_~k~5), 78397#(<= 35 ULTIMATE.start_main_~k~5), 78396#(<= 34 ULTIMATE.start_main_~k~5), 78399#(<= 37 ULTIMATE.start_main_~k~5), 78398#(<= 36 ULTIMATE.start_main_~k~5), 78401#(<= 39 ULTIMATE.start_main_~k~5), 78400#(<= 38 ULTIMATE.start_main_~k~5), 78403#(<= 41 ULTIMATE.start_main_~k~5), 78402#(<= 40 ULTIMATE.start_main_~k~5), 78405#(<= 43 ULTIMATE.start_main_~k~5), 78404#(<= 42 ULTIMATE.start_main_~k~5), 78407#(<= 45 ULTIMATE.start_main_~k~5), 78406#(<= 44 ULTIMATE.start_main_~k~5), 78409#(<= 47 ULTIMATE.start_main_~k~5), 78408#(<= 46 ULTIMATE.start_main_~k~5), 78411#(<= 49 ULTIMATE.start_main_~k~5), 78410#(<= 48 ULTIMATE.start_main_~k~5), 78413#(<= 51 ULTIMATE.start_main_~k~5), 78412#(<= 50 ULTIMATE.start_main_~k~5), 78415#(<= 53 ULTIMATE.start_main_~k~5), 78414#(<= 52 ULTIMATE.start_main_~k~5), 78417#(<= 55 ULTIMATE.start_main_~k~5), 78416#(<= 54 ULTIMATE.start_main_~k~5), 78419#(<= 57 ULTIMATE.start_main_~k~5), 78418#(<= 56 ULTIMATE.start_main_~k~5), 78421#(<= 59 ULTIMATE.start_main_~k~5), 78420#(<= 58 ULTIMATE.start_main_~k~5), 78423#(<= 61 ULTIMATE.start_main_~k~5), 78422#(<= 60 ULTIMATE.start_main_~k~5), 78425#(<= 63 ULTIMATE.start_main_~k~5), 78424#(<= 62 ULTIMATE.start_main_~k~5), 78427#(<= 65 ULTIMATE.start_main_~k~5), 78426#(<= 64 ULTIMATE.start_main_~k~5), 78428#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond)] [2018-07-23 13:41:43,437 INFO L134 CoverageAnalysis]: Checked inductivity of 6305 backedges. 2145 proven. 4160 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:43,437 INFO L450 AbstractCegarLoop]: Interpolant automaton has 69 states [2018-07-23 13:41:43,437 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2018-07-23 13:41:43,437 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2280, Invalid=2412, Unknown=0, NotChecked=0, Total=4692 [2018-07-23 13:41:43,438 INFO L87 Difference]: Start difference. First operand 199 states and 200 transitions. Second operand 69 states. [2018-07-23 13:41:43,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:43,618 INFO L93 Difference]: Finished difference Result 207 states and 208 transitions. [2018-07-23 13:41:43,618 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 134 states. [2018-07-23 13:41:43,619 INFO L78 Accepts]: Start accepts. Automaton has 69 states. Word has length 198 [2018-07-23 13:41:43,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:43,619 INFO L225 Difference]: With dead ends: 207 [2018-07-23 13:41:43,619 INFO L226 Difference]: Without dead ends: 205 [2018-07-23 13:41:43,621 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4290 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6834, Invalid=11256, Unknown=0, NotChecked=0, Total=18090 [2018-07-23 13:41:43,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2018-07-23 13:41:43,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 201. [2018-07-23 13:41:43,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2018-07-23 13:41:43,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 202 transitions. [2018-07-23 13:41:43,648 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 202 transitions. Word has length 198 [2018-07-23 13:41:43,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:43,649 INFO L471 AbstractCegarLoop]: Abstraction has 201 states and 202 transitions. [2018-07-23 13:41:43,649 INFO L472 AbstractCegarLoop]: Interpolant automaton has 69 states. [2018-07-23 13:41:43,649 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 202 transitions. [2018-07-23 13:41:43,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2018-07-23 13:41:43,650 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:43,650 INFO L357 BasicCegarLoop]: trace histogram [66, 65, 65, 1, 1, 1, 1] [2018-07-23 13:41:43,650 INFO L414 AbstractCegarLoop]: === Iteration 131 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:43,650 INFO L82 PathProgramCache]: Analyzing trace with hash 1393083850, now seen corresponding path program 129 times [2018-07-23 13:41:43,650 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:43,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:44,028 INFO L134 CoverageAnalysis]: Checked inductivity of 6435 backedges. 4290 proven. 2145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:44,028 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:44,028 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [133] total 133 [2018-07-23 13:41:44,029 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:44,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:44,029 INFO L185 omatonBuilderFactory]: Interpolants [79377#true, 79379#(<= ULTIMATE.start_main_~i~5 0), 79378#false, 79381#(<= ULTIMATE.start_main_~i~5 2), 79380#(<= ULTIMATE.start_main_~i~5 1), 79383#(<= ULTIMATE.start_main_~i~5 4), 79382#(<= ULTIMATE.start_main_~i~5 3), 79385#(<= ULTIMATE.start_main_~i~5 6), 79384#(<= ULTIMATE.start_main_~i~5 5), 79387#(<= ULTIMATE.start_main_~i~5 8), 79386#(<= ULTIMATE.start_main_~i~5 7), 79389#(<= ULTIMATE.start_main_~i~5 10), 79388#(<= ULTIMATE.start_main_~i~5 9), 79391#(<= ULTIMATE.start_main_~i~5 12), 79390#(<= ULTIMATE.start_main_~i~5 11), 79393#(<= ULTIMATE.start_main_~i~5 14), 79392#(<= ULTIMATE.start_main_~i~5 13), 79395#(<= ULTIMATE.start_main_~i~5 16), 79394#(<= ULTIMATE.start_main_~i~5 15), 79397#(<= ULTIMATE.start_main_~i~5 18), 79396#(<= ULTIMATE.start_main_~i~5 17), 79399#(<= ULTIMATE.start_main_~i~5 20), 79398#(<= ULTIMATE.start_main_~i~5 19), 79401#(<= ULTIMATE.start_main_~i~5 22), 79400#(<= ULTIMATE.start_main_~i~5 21), 79403#(<= ULTIMATE.start_main_~i~5 24), 79402#(<= ULTIMATE.start_main_~i~5 23), 79405#(<= ULTIMATE.start_main_~i~5 26), 79404#(<= ULTIMATE.start_main_~i~5 25), 79407#(<= ULTIMATE.start_main_~i~5 28), 79406#(<= ULTIMATE.start_main_~i~5 27), 79409#(<= ULTIMATE.start_main_~i~5 30), 79408#(<= ULTIMATE.start_main_~i~5 29), 79411#(<= ULTIMATE.start_main_~i~5 32), 79410#(<= ULTIMATE.start_main_~i~5 31), 79413#(<= ULTIMATE.start_main_~i~5 34), 79412#(<= ULTIMATE.start_main_~i~5 33), 79415#(<= ULTIMATE.start_main_~i~5 36), 79414#(<= ULTIMATE.start_main_~i~5 35), 79417#(<= ULTIMATE.start_main_~i~5 38), 79416#(<= ULTIMATE.start_main_~i~5 37), 79419#(<= ULTIMATE.start_main_~i~5 40), 79418#(<= ULTIMATE.start_main_~i~5 39), 79421#(<= ULTIMATE.start_main_~i~5 42), 79420#(<= ULTIMATE.start_main_~i~5 41), 79423#(<= ULTIMATE.start_main_~i~5 44), 79422#(<= ULTIMATE.start_main_~i~5 43), 79425#(<= ULTIMATE.start_main_~i~5 46), 79424#(<= ULTIMATE.start_main_~i~5 45), 79427#(<= ULTIMATE.start_main_~i~5 48), 79426#(<= ULTIMATE.start_main_~i~5 47), 79429#(<= ULTIMATE.start_main_~i~5 50), 79428#(<= ULTIMATE.start_main_~i~5 49), 79431#(<= ULTIMATE.start_main_~i~5 52), 79430#(<= ULTIMATE.start_main_~i~5 51), 79433#(<= ULTIMATE.start_main_~i~5 54), 79432#(<= ULTIMATE.start_main_~i~5 53), 79435#(<= ULTIMATE.start_main_~i~5 56), 79434#(<= ULTIMATE.start_main_~i~5 55), 79437#(<= ULTIMATE.start_main_~i~5 58), 79436#(<= ULTIMATE.start_main_~i~5 57), 79439#(<= ULTIMATE.start_main_~i~5 60), 79438#(<= ULTIMATE.start_main_~i~5 59), 79441#(<= ULTIMATE.start_main_~i~5 62), 79440#(<= ULTIMATE.start_main_~i~5 61), 79443#(<= ULTIMATE.start_main_~i~5 64), 79442#(<= ULTIMATE.start_main_~i~5 63), 79445#(<= ULTIMATE.start_main_~j~5 65), 79444#(<= ULTIMATE.start_main_~i~5 65), 79447#(<= ULTIMATE.start_main_~j~5 63), 79446#(<= ULTIMATE.start_main_~j~5 64), 79449#(<= ULTIMATE.start_main_~j~5 61), 79448#(<= ULTIMATE.start_main_~j~5 62), 79451#(<= ULTIMATE.start_main_~j~5 59), 79450#(<= ULTIMATE.start_main_~j~5 60), 79453#(<= ULTIMATE.start_main_~j~5 57), 79452#(<= ULTIMATE.start_main_~j~5 58), 79455#(<= ULTIMATE.start_main_~j~5 55), 79454#(<= ULTIMATE.start_main_~j~5 56), 79457#(<= ULTIMATE.start_main_~j~5 53), 79456#(<= ULTIMATE.start_main_~j~5 54), 79459#(<= ULTIMATE.start_main_~j~5 51), 79458#(<= ULTIMATE.start_main_~j~5 52), 79461#(<= ULTIMATE.start_main_~j~5 49), 79460#(<= ULTIMATE.start_main_~j~5 50), 79463#(<= ULTIMATE.start_main_~j~5 47), 79462#(<= ULTIMATE.start_main_~j~5 48), 79465#(<= ULTIMATE.start_main_~j~5 45), 79464#(<= ULTIMATE.start_main_~j~5 46), 79467#(<= ULTIMATE.start_main_~j~5 43), 79466#(<= ULTIMATE.start_main_~j~5 44), 79469#(<= ULTIMATE.start_main_~j~5 41), 79468#(<= ULTIMATE.start_main_~j~5 42), 79471#(<= ULTIMATE.start_main_~j~5 39), 79470#(<= ULTIMATE.start_main_~j~5 40), 79473#(<= ULTIMATE.start_main_~j~5 37), 79472#(<= ULTIMATE.start_main_~j~5 38), 79475#(<= ULTIMATE.start_main_~j~5 35), 79474#(<= ULTIMATE.start_main_~j~5 36), 79477#(<= ULTIMATE.start_main_~j~5 33), 79476#(<= ULTIMATE.start_main_~j~5 34), 79479#(<= ULTIMATE.start_main_~j~5 31), 79478#(<= ULTIMATE.start_main_~j~5 32), 79481#(<= ULTIMATE.start_main_~j~5 29), 79480#(<= ULTIMATE.start_main_~j~5 30), 79483#(<= ULTIMATE.start_main_~j~5 27), 79482#(<= ULTIMATE.start_main_~j~5 28), 79485#(<= ULTIMATE.start_main_~j~5 25), 79484#(<= ULTIMATE.start_main_~j~5 26), 79487#(<= ULTIMATE.start_main_~j~5 23), 79486#(<= ULTIMATE.start_main_~j~5 24), 79489#(<= ULTIMATE.start_main_~j~5 21), 79488#(<= ULTIMATE.start_main_~j~5 22), 79491#(<= ULTIMATE.start_main_~j~5 19), 79490#(<= ULTIMATE.start_main_~j~5 20), 79493#(<= ULTIMATE.start_main_~j~5 17), 79492#(<= ULTIMATE.start_main_~j~5 18), 79495#(<= ULTIMATE.start_main_~j~5 15), 79494#(<= ULTIMATE.start_main_~j~5 16), 79497#(<= ULTIMATE.start_main_~j~5 13), 79496#(<= ULTIMATE.start_main_~j~5 14), 79499#(<= ULTIMATE.start_main_~j~5 11), 79498#(<= ULTIMATE.start_main_~j~5 12), 79501#(<= ULTIMATE.start_main_~j~5 9), 79500#(<= ULTIMATE.start_main_~j~5 10), 79503#(<= ULTIMATE.start_main_~j~5 7), 79502#(<= ULTIMATE.start_main_~j~5 8), 79505#(<= ULTIMATE.start_main_~j~5 5), 79504#(<= ULTIMATE.start_main_~j~5 6), 79507#(<= ULTIMATE.start_main_~j~5 3), 79506#(<= ULTIMATE.start_main_~j~5 4), 79509#(<= ULTIMATE.start_main_~j~5 1), 79508#(<= ULTIMATE.start_main_~j~5 2), 79510#(<= ULTIMATE.start_main_~j~5 0)] [2018-07-23 13:41:44,030 INFO L134 CoverageAnalysis]: Checked inductivity of 6435 backedges. 4290 proven. 2145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:44,030 INFO L450 AbstractCegarLoop]: Interpolant automaton has 134 states [2018-07-23 13:41:44,030 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 134 interpolants. [2018-07-23 13:41:44,031 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4555, Invalid=13267, Unknown=0, NotChecked=0, Total=17822 [2018-07-23 13:41:44,031 INFO L87 Difference]: Start difference. First operand 201 states and 202 transitions. Second operand 134 states. [2018-07-23 13:41:44,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:44,810 INFO L93 Difference]: Finished difference Result 337 states and 339 transitions. [2018-07-23 13:41:44,810 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 134 states. [2018-07-23 13:41:44,810 INFO L78 Accepts]: Start accepts. Automaton has 134 states. Word has length 200 [2018-07-23 13:41:44,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:44,810 INFO L225 Difference]: With dead ends: 337 [2018-07-23 13:41:44,810 INFO L226 Difference]: Without dead ends: 202 [2018-07-23 13:41:44,813 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 198 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6370 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9109, Invalid=30691, Unknown=0, NotChecked=0, Total=39800 [2018-07-23 13:41:44,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2018-07-23 13:41:44,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2018-07-23 13:41:44,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2018-07-23 13:41:44,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 203 transitions. [2018-07-23 13:41:44,831 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 203 transitions. Word has length 200 [2018-07-23 13:41:44,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:44,831 INFO L471 AbstractCegarLoop]: Abstraction has 202 states and 203 transitions. [2018-07-23 13:41:44,831 INFO L472 AbstractCegarLoop]: Interpolant automaton has 134 states. [2018-07-23 13:41:44,831 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 203 transitions. [2018-07-23 13:41:44,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2018-07-23 13:41:44,832 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:44,832 INFO L357 BasicCegarLoop]: trace histogram [66, 66, 65, 1, 1, 1, 1] [2018-07-23 13:41:44,832 INFO L414 AbstractCegarLoop]: === Iteration 132 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:44,832 INFO L82 PathProgramCache]: Analyzing trace with hash 327340099, now seen corresponding path program 130 times [2018-07-23 13:41:44,832 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:44,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:45,067 INFO L134 CoverageAnalysis]: Checked inductivity of 6501 backedges. 2211 proven. 4290 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:45,068 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:45,068 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [69] total 69 [2018-07-23 13:41:45,068 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:45,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:45,068 INFO L185 omatonBuilderFactory]: Interpolants [80769#(<= 46 ULTIMATE.start_main_~k~5), 80768#(<= 45 ULTIMATE.start_main_~k~5), 80771#(<= 48 ULTIMATE.start_main_~k~5), 80770#(<= 47 ULTIMATE.start_main_~k~5), 80773#(<= 50 ULTIMATE.start_main_~k~5), 80772#(<= 49 ULTIMATE.start_main_~k~5), 80775#(<= 52 ULTIMATE.start_main_~k~5), 80774#(<= 51 ULTIMATE.start_main_~k~5), 80777#(<= 54 ULTIMATE.start_main_~k~5), 80776#(<= 53 ULTIMATE.start_main_~k~5), 80779#(<= 56 ULTIMATE.start_main_~k~5), 80778#(<= 55 ULTIMATE.start_main_~k~5), 80781#(<= 58 ULTIMATE.start_main_~k~5), 80780#(<= 57 ULTIMATE.start_main_~k~5), 80783#(<= 60 ULTIMATE.start_main_~k~5), 80782#(<= 59 ULTIMATE.start_main_~k~5), 80785#(<= 62 ULTIMATE.start_main_~k~5), 80784#(<= 61 ULTIMATE.start_main_~k~5), 80787#(<= 64 ULTIMATE.start_main_~k~5), 80786#(<= 63 ULTIMATE.start_main_~k~5), 80789#(<= 66 ULTIMATE.start_main_~k~5), 80788#(<= 65 ULTIMATE.start_main_~k~5), 80790#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 80721#true, 80723#(<= 0 ULTIMATE.start_main_~k~5), 80722#false, 80725#(<= 2 ULTIMATE.start_main_~k~5), 80724#(<= 1 ULTIMATE.start_main_~k~5), 80727#(<= 4 ULTIMATE.start_main_~k~5), 80726#(<= 3 ULTIMATE.start_main_~k~5), 80729#(<= 6 ULTIMATE.start_main_~k~5), 80728#(<= 5 ULTIMATE.start_main_~k~5), 80731#(<= 8 ULTIMATE.start_main_~k~5), 80730#(<= 7 ULTIMATE.start_main_~k~5), 80733#(<= 10 ULTIMATE.start_main_~k~5), 80732#(<= 9 ULTIMATE.start_main_~k~5), 80735#(<= 12 ULTIMATE.start_main_~k~5), 80734#(<= 11 ULTIMATE.start_main_~k~5), 80737#(<= 14 ULTIMATE.start_main_~k~5), 80736#(<= 13 ULTIMATE.start_main_~k~5), 80739#(<= 16 ULTIMATE.start_main_~k~5), 80738#(<= 15 ULTIMATE.start_main_~k~5), 80741#(<= 18 ULTIMATE.start_main_~k~5), 80740#(<= 17 ULTIMATE.start_main_~k~5), 80743#(<= 20 ULTIMATE.start_main_~k~5), 80742#(<= 19 ULTIMATE.start_main_~k~5), 80745#(<= 22 ULTIMATE.start_main_~k~5), 80744#(<= 21 ULTIMATE.start_main_~k~5), 80747#(<= 24 ULTIMATE.start_main_~k~5), 80746#(<= 23 ULTIMATE.start_main_~k~5), 80749#(<= 26 ULTIMATE.start_main_~k~5), 80748#(<= 25 ULTIMATE.start_main_~k~5), 80751#(<= 28 ULTIMATE.start_main_~k~5), 80750#(<= 27 ULTIMATE.start_main_~k~5), 80753#(<= 30 ULTIMATE.start_main_~k~5), 80752#(<= 29 ULTIMATE.start_main_~k~5), 80755#(<= 32 ULTIMATE.start_main_~k~5), 80754#(<= 31 ULTIMATE.start_main_~k~5), 80757#(<= 34 ULTIMATE.start_main_~k~5), 80756#(<= 33 ULTIMATE.start_main_~k~5), 80759#(<= 36 ULTIMATE.start_main_~k~5), 80758#(<= 35 ULTIMATE.start_main_~k~5), 80761#(<= 38 ULTIMATE.start_main_~k~5), 80760#(<= 37 ULTIMATE.start_main_~k~5), 80763#(<= 40 ULTIMATE.start_main_~k~5), 80762#(<= 39 ULTIMATE.start_main_~k~5), 80765#(<= 42 ULTIMATE.start_main_~k~5), 80764#(<= 41 ULTIMATE.start_main_~k~5), 80767#(<= 44 ULTIMATE.start_main_~k~5), 80766#(<= 43 ULTIMATE.start_main_~k~5)] [2018-07-23 13:41:45,069 INFO L134 CoverageAnalysis]: Checked inductivity of 6501 backedges. 2211 proven. 4290 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:45,069 INFO L450 AbstractCegarLoop]: Interpolant automaton has 70 states [2018-07-23 13:41:45,069 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2018-07-23 13:41:45,069 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2348, Invalid=2482, Unknown=0, NotChecked=0, Total=4830 [2018-07-23 13:41:45,069 INFO L87 Difference]: Start difference. First operand 202 states and 203 transitions. Second operand 70 states. [2018-07-23 13:41:45,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:45,269 INFO L93 Difference]: Finished difference Result 210 states and 211 transitions. [2018-07-23 13:41:45,269 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2018-07-23 13:41:45,269 INFO L78 Accepts]: Start accepts. Automaton has 70 states. Word has length 201 [2018-07-23 13:41:45,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:45,270 INFO L225 Difference]: With dead ends: 210 [2018-07-23 13:41:45,270 INFO L226 Difference]: Without dead ends: 208 [2018-07-23 13:41:45,271 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4422 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7038, Invalid=11594, Unknown=0, NotChecked=0, Total=18632 [2018-07-23 13:41:45,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2018-07-23 13:41:45,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 204. [2018-07-23 13:41:45,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2018-07-23 13:41:45,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 205 transitions. [2018-07-23 13:41:45,289 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 205 transitions. Word has length 201 [2018-07-23 13:41:45,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:45,289 INFO L471 AbstractCegarLoop]: Abstraction has 204 states and 205 transitions. [2018-07-23 13:41:45,289 INFO L472 AbstractCegarLoop]: Interpolant automaton has 70 states. [2018-07-23 13:41:45,289 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 205 transitions. [2018-07-23 13:41:45,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2018-07-23 13:41:45,290 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:45,290 INFO L357 BasicCegarLoop]: trace histogram [67, 66, 66, 1, 1, 1, 1] [2018-07-23 13:41:45,290 INFO L414 AbstractCegarLoop]: === Iteration 133 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:45,290 INFO L82 PathProgramCache]: Analyzing trace with hash 1041288555, now seen corresponding path program 131 times [2018-07-23 13:41:45,290 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:45,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:45,667 INFO L134 CoverageAnalysis]: Checked inductivity of 6633 backedges. 4422 proven. 2211 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:45,668 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:45,668 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [135] total 135 [2018-07-23 13:41:45,668 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:45,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:45,669 INFO L185 omatonBuilderFactory]: Interpolants [81753#true, 81755#(<= ULTIMATE.start_main_~i~5 0), 81754#false, 81757#(<= ULTIMATE.start_main_~i~5 2), 81756#(<= ULTIMATE.start_main_~i~5 1), 81759#(<= ULTIMATE.start_main_~i~5 4), 81758#(<= ULTIMATE.start_main_~i~5 3), 81761#(<= ULTIMATE.start_main_~i~5 6), 81760#(<= ULTIMATE.start_main_~i~5 5), 81763#(<= ULTIMATE.start_main_~i~5 8), 81762#(<= ULTIMATE.start_main_~i~5 7), 81765#(<= ULTIMATE.start_main_~i~5 10), 81764#(<= ULTIMATE.start_main_~i~5 9), 81767#(<= ULTIMATE.start_main_~i~5 12), 81766#(<= ULTIMATE.start_main_~i~5 11), 81769#(<= ULTIMATE.start_main_~i~5 14), 81768#(<= ULTIMATE.start_main_~i~5 13), 81771#(<= ULTIMATE.start_main_~i~5 16), 81770#(<= ULTIMATE.start_main_~i~5 15), 81773#(<= ULTIMATE.start_main_~i~5 18), 81772#(<= ULTIMATE.start_main_~i~5 17), 81775#(<= ULTIMATE.start_main_~i~5 20), 81774#(<= ULTIMATE.start_main_~i~5 19), 81777#(<= ULTIMATE.start_main_~i~5 22), 81776#(<= ULTIMATE.start_main_~i~5 21), 81779#(<= ULTIMATE.start_main_~i~5 24), 81778#(<= ULTIMATE.start_main_~i~5 23), 81781#(<= ULTIMATE.start_main_~i~5 26), 81780#(<= ULTIMATE.start_main_~i~5 25), 81783#(<= ULTIMATE.start_main_~i~5 28), 81782#(<= ULTIMATE.start_main_~i~5 27), 81785#(<= ULTIMATE.start_main_~i~5 30), 81784#(<= ULTIMATE.start_main_~i~5 29), 81787#(<= ULTIMATE.start_main_~i~5 32), 81786#(<= ULTIMATE.start_main_~i~5 31), 81789#(<= ULTIMATE.start_main_~i~5 34), 81788#(<= ULTIMATE.start_main_~i~5 33), 81791#(<= ULTIMATE.start_main_~i~5 36), 81790#(<= ULTIMATE.start_main_~i~5 35), 81793#(<= ULTIMATE.start_main_~i~5 38), 81792#(<= ULTIMATE.start_main_~i~5 37), 81795#(<= ULTIMATE.start_main_~i~5 40), 81794#(<= ULTIMATE.start_main_~i~5 39), 81797#(<= ULTIMATE.start_main_~i~5 42), 81796#(<= ULTIMATE.start_main_~i~5 41), 81799#(<= ULTIMATE.start_main_~i~5 44), 81798#(<= ULTIMATE.start_main_~i~5 43), 81801#(<= ULTIMATE.start_main_~i~5 46), 81800#(<= ULTIMATE.start_main_~i~5 45), 81803#(<= ULTIMATE.start_main_~i~5 48), 81802#(<= ULTIMATE.start_main_~i~5 47), 81805#(<= ULTIMATE.start_main_~i~5 50), 81804#(<= ULTIMATE.start_main_~i~5 49), 81807#(<= ULTIMATE.start_main_~i~5 52), 81806#(<= ULTIMATE.start_main_~i~5 51), 81809#(<= ULTIMATE.start_main_~i~5 54), 81808#(<= ULTIMATE.start_main_~i~5 53), 81811#(<= ULTIMATE.start_main_~i~5 56), 81810#(<= ULTIMATE.start_main_~i~5 55), 81813#(<= ULTIMATE.start_main_~i~5 58), 81812#(<= ULTIMATE.start_main_~i~5 57), 81815#(<= ULTIMATE.start_main_~i~5 60), 81814#(<= ULTIMATE.start_main_~i~5 59), 81817#(<= ULTIMATE.start_main_~i~5 62), 81816#(<= ULTIMATE.start_main_~i~5 61), 81819#(<= ULTIMATE.start_main_~i~5 64), 81818#(<= ULTIMATE.start_main_~i~5 63), 81821#(<= ULTIMATE.start_main_~i~5 66), 81820#(<= ULTIMATE.start_main_~i~5 65), 81823#(<= ULTIMATE.start_main_~j~5 65), 81822#(<= ULTIMATE.start_main_~j~5 66), 81825#(<= ULTIMATE.start_main_~j~5 63), 81824#(<= ULTIMATE.start_main_~j~5 64), 81827#(<= ULTIMATE.start_main_~j~5 61), 81826#(<= ULTIMATE.start_main_~j~5 62), 81829#(<= ULTIMATE.start_main_~j~5 59), 81828#(<= ULTIMATE.start_main_~j~5 60), 81831#(<= ULTIMATE.start_main_~j~5 57), 81830#(<= ULTIMATE.start_main_~j~5 58), 81833#(<= ULTIMATE.start_main_~j~5 55), 81832#(<= ULTIMATE.start_main_~j~5 56), 81835#(<= ULTIMATE.start_main_~j~5 53), 81834#(<= ULTIMATE.start_main_~j~5 54), 81837#(<= ULTIMATE.start_main_~j~5 51), 81836#(<= ULTIMATE.start_main_~j~5 52), 81839#(<= ULTIMATE.start_main_~j~5 49), 81838#(<= ULTIMATE.start_main_~j~5 50), 81841#(<= ULTIMATE.start_main_~j~5 47), 81840#(<= ULTIMATE.start_main_~j~5 48), 81843#(<= ULTIMATE.start_main_~j~5 45), 81842#(<= ULTIMATE.start_main_~j~5 46), 81845#(<= ULTIMATE.start_main_~j~5 43), 81844#(<= ULTIMATE.start_main_~j~5 44), 81847#(<= ULTIMATE.start_main_~j~5 41), 81846#(<= ULTIMATE.start_main_~j~5 42), 81849#(<= ULTIMATE.start_main_~j~5 39), 81848#(<= ULTIMATE.start_main_~j~5 40), 81851#(<= ULTIMATE.start_main_~j~5 37), 81850#(<= ULTIMATE.start_main_~j~5 38), 81853#(<= ULTIMATE.start_main_~j~5 35), 81852#(<= ULTIMATE.start_main_~j~5 36), 81855#(<= ULTIMATE.start_main_~j~5 33), 81854#(<= ULTIMATE.start_main_~j~5 34), 81857#(<= ULTIMATE.start_main_~j~5 31), 81856#(<= ULTIMATE.start_main_~j~5 32), 81859#(<= ULTIMATE.start_main_~j~5 29), 81858#(<= ULTIMATE.start_main_~j~5 30), 81861#(<= ULTIMATE.start_main_~j~5 27), 81860#(<= ULTIMATE.start_main_~j~5 28), 81863#(<= ULTIMATE.start_main_~j~5 25), 81862#(<= ULTIMATE.start_main_~j~5 26), 81865#(<= ULTIMATE.start_main_~j~5 23), 81864#(<= ULTIMATE.start_main_~j~5 24), 81867#(<= ULTIMATE.start_main_~j~5 21), 81866#(<= ULTIMATE.start_main_~j~5 22), 81869#(<= ULTIMATE.start_main_~j~5 19), 81868#(<= ULTIMATE.start_main_~j~5 20), 81871#(<= ULTIMATE.start_main_~j~5 17), 81870#(<= ULTIMATE.start_main_~j~5 18), 81873#(<= ULTIMATE.start_main_~j~5 15), 81872#(<= ULTIMATE.start_main_~j~5 16), 81875#(<= ULTIMATE.start_main_~j~5 13), 81874#(<= ULTIMATE.start_main_~j~5 14), 81877#(<= ULTIMATE.start_main_~j~5 11), 81876#(<= ULTIMATE.start_main_~j~5 12), 81879#(<= ULTIMATE.start_main_~j~5 9), 81878#(<= ULTIMATE.start_main_~j~5 10), 81881#(<= ULTIMATE.start_main_~j~5 7), 81880#(<= ULTIMATE.start_main_~j~5 8), 81883#(<= ULTIMATE.start_main_~j~5 5), 81882#(<= ULTIMATE.start_main_~j~5 6), 81885#(<= ULTIMATE.start_main_~j~5 3), 81884#(<= ULTIMATE.start_main_~j~5 4), 81887#(<= ULTIMATE.start_main_~j~5 1), 81886#(<= ULTIMATE.start_main_~j~5 2), 81888#(<= ULTIMATE.start_main_~j~5 0)] [2018-07-23 13:41:45,669 INFO L134 CoverageAnalysis]: Checked inductivity of 6633 backedges. 4422 proven. 2211 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:45,669 INFO L450 AbstractCegarLoop]: Interpolant automaton has 136 states [2018-07-23 13:41:45,670 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 136 interpolants. [2018-07-23 13:41:45,670 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4691, Invalid=13669, Unknown=0, NotChecked=0, Total=18360 [2018-07-23 13:41:45,671 INFO L87 Difference]: Start difference. First operand 204 states and 205 transitions. Second operand 136 states. [2018-07-23 13:41:46,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:46,447 INFO L93 Difference]: Finished difference Result 342 states and 344 transitions. [2018-07-23 13:41:46,447 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2018-07-23 13:41:46,447 INFO L78 Accepts]: Start accepts. Automaton has 136 states. Word has length 203 [2018-07-23 13:41:46,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:46,447 INFO L225 Difference]: With dead ends: 342 [2018-07-23 13:41:46,448 INFO L226 Difference]: Without dead ends: 205 [2018-07-23 13:41:46,450 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 201 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6567 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9381, Invalid=31625, Unknown=0, NotChecked=0, Total=41006 [2018-07-23 13:41:46,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2018-07-23 13:41:46,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2018-07-23 13:41:46,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2018-07-23 13:41:46,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 206 transitions. [2018-07-23 13:41:46,470 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 206 transitions. Word has length 203 [2018-07-23 13:41:46,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:46,470 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 206 transitions. [2018-07-23 13:41:46,470 INFO L472 AbstractCegarLoop]: Interpolant automaton has 136 states. [2018-07-23 13:41:46,471 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 206 transitions. [2018-07-23 13:41:46,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2018-07-23 13:41:46,471 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:46,472 INFO L357 BasicCegarLoop]: trace histogram [67, 67, 66, 1, 1, 1, 1] [2018-07-23 13:41:46,472 INFO L414 AbstractCegarLoop]: === Iteration 134 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:46,472 INFO L82 PathProgramCache]: Analyzing trace with hash -132545454, now seen corresponding path program 132 times [2018-07-23 13:41:46,472 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:46,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:46,730 INFO L134 CoverageAnalysis]: Checked inductivity of 6700 backedges. 2278 proven. 4422 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:46,730 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:46,730 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [70] total 70 [2018-07-23 13:41:46,731 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:46,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:46,731 INFO L185 omatonBuilderFactory]: Interpolants [83117#true, 83119#(<= 0 ULTIMATE.start_main_~k~5), 83118#false, 83121#(<= 2 ULTIMATE.start_main_~k~5), 83120#(<= 1 ULTIMATE.start_main_~k~5), 83123#(<= 4 ULTIMATE.start_main_~k~5), 83122#(<= 3 ULTIMATE.start_main_~k~5), 83125#(<= 6 ULTIMATE.start_main_~k~5), 83124#(<= 5 ULTIMATE.start_main_~k~5), 83127#(<= 8 ULTIMATE.start_main_~k~5), 83126#(<= 7 ULTIMATE.start_main_~k~5), 83129#(<= 10 ULTIMATE.start_main_~k~5), 83128#(<= 9 ULTIMATE.start_main_~k~5), 83131#(<= 12 ULTIMATE.start_main_~k~5), 83130#(<= 11 ULTIMATE.start_main_~k~5), 83133#(<= 14 ULTIMATE.start_main_~k~5), 83132#(<= 13 ULTIMATE.start_main_~k~5), 83135#(<= 16 ULTIMATE.start_main_~k~5), 83134#(<= 15 ULTIMATE.start_main_~k~5), 83137#(<= 18 ULTIMATE.start_main_~k~5), 83136#(<= 17 ULTIMATE.start_main_~k~5), 83139#(<= 20 ULTIMATE.start_main_~k~5), 83138#(<= 19 ULTIMATE.start_main_~k~5), 83141#(<= 22 ULTIMATE.start_main_~k~5), 83140#(<= 21 ULTIMATE.start_main_~k~5), 83143#(<= 24 ULTIMATE.start_main_~k~5), 83142#(<= 23 ULTIMATE.start_main_~k~5), 83145#(<= 26 ULTIMATE.start_main_~k~5), 83144#(<= 25 ULTIMATE.start_main_~k~5), 83147#(<= 28 ULTIMATE.start_main_~k~5), 83146#(<= 27 ULTIMATE.start_main_~k~5), 83149#(<= 30 ULTIMATE.start_main_~k~5), 83148#(<= 29 ULTIMATE.start_main_~k~5), 83151#(<= 32 ULTIMATE.start_main_~k~5), 83150#(<= 31 ULTIMATE.start_main_~k~5), 83153#(<= 34 ULTIMATE.start_main_~k~5), 83152#(<= 33 ULTIMATE.start_main_~k~5), 83155#(<= 36 ULTIMATE.start_main_~k~5), 83154#(<= 35 ULTIMATE.start_main_~k~5), 83157#(<= 38 ULTIMATE.start_main_~k~5), 83156#(<= 37 ULTIMATE.start_main_~k~5), 83159#(<= 40 ULTIMATE.start_main_~k~5), 83158#(<= 39 ULTIMATE.start_main_~k~5), 83161#(<= 42 ULTIMATE.start_main_~k~5), 83160#(<= 41 ULTIMATE.start_main_~k~5), 83163#(<= 44 ULTIMATE.start_main_~k~5), 83162#(<= 43 ULTIMATE.start_main_~k~5), 83165#(<= 46 ULTIMATE.start_main_~k~5), 83164#(<= 45 ULTIMATE.start_main_~k~5), 83167#(<= 48 ULTIMATE.start_main_~k~5), 83166#(<= 47 ULTIMATE.start_main_~k~5), 83169#(<= 50 ULTIMATE.start_main_~k~5), 83168#(<= 49 ULTIMATE.start_main_~k~5), 83171#(<= 52 ULTIMATE.start_main_~k~5), 83170#(<= 51 ULTIMATE.start_main_~k~5), 83173#(<= 54 ULTIMATE.start_main_~k~5), 83172#(<= 53 ULTIMATE.start_main_~k~5), 83175#(<= 56 ULTIMATE.start_main_~k~5), 83174#(<= 55 ULTIMATE.start_main_~k~5), 83177#(<= 58 ULTIMATE.start_main_~k~5), 83176#(<= 57 ULTIMATE.start_main_~k~5), 83179#(<= 60 ULTIMATE.start_main_~k~5), 83178#(<= 59 ULTIMATE.start_main_~k~5), 83181#(<= 62 ULTIMATE.start_main_~k~5), 83180#(<= 61 ULTIMATE.start_main_~k~5), 83183#(<= 64 ULTIMATE.start_main_~k~5), 83182#(<= 63 ULTIMATE.start_main_~k~5), 83185#(<= 66 ULTIMATE.start_main_~k~5), 83184#(<= 65 ULTIMATE.start_main_~k~5), 83187#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 83186#(<= 67 ULTIMATE.start_main_~k~5)] [2018-07-23 13:41:46,731 INFO L134 CoverageAnalysis]: Checked inductivity of 6700 backedges. 2278 proven. 4422 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:46,732 INFO L450 AbstractCegarLoop]: Interpolant automaton has 71 states [2018-07-23 13:41:46,732 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2018-07-23 13:41:46,732 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2417, Invalid=2553, Unknown=0, NotChecked=0, Total=4970 [2018-07-23 13:41:46,732 INFO L87 Difference]: Start difference. First operand 205 states and 206 transitions. Second operand 71 states. [2018-07-23 13:41:46,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:46,983 INFO L93 Difference]: Finished difference Result 213 states and 214 transitions. [2018-07-23 13:41:46,984 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2018-07-23 13:41:46,984 INFO L78 Accepts]: Start accepts. Automaton has 71 states. Word has length 204 [2018-07-23 13:41:46,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:46,984 INFO L225 Difference]: With dead ends: 213 [2018-07-23 13:41:46,984 INFO L226 Difference]: Without dead ends: 211 [2018-07-23 13:41:46,985 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4556 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7245, Invalid=11937, Unknown=0, NotChecked=0, Total=19182 [2018-07-23 13:41:46,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2018-07-23 13:41:47,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 207. [2018-07-23 13:41:47,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207 states. [2018-07-23 13:41:47,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 208 transitions. [2018-07-23 13:41:47,011 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 208 transitions. Word has length 204 [2018-07-23 13:41:47,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:47,011 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 208 transitions. [2018-07-23 13:41:47,011 INFO L472 AbstractCegarLoop]: Interpolant automaton has 71 states. [2018-07-23 13:41:47,011 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 208 transitions. [2018-07-23 13:41:47,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2018-07-23 13:41:47,012 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:47,012 INFO L357 BasicCegarLoop]: trace histogram [68, 67, 67, 1, 1, 1, 1] [2018-07-23 13:41:47,012 INFO L414 AbstractCegarLoop]: === Iteration 135 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:47,013 INFO L82 PathProgramCache]: Analyzing trace with hash 1472903610, now seen corresponding path program 133 times [2018-07-23 13:41:47,013 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:47,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:47,474 INFO L134 CoverageAnalysis]: Checked inductivity of 6834 backedges. 4556 proven. 2278 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:47,474 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:47,474 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [137] total 137 [2018-07-23 13:41:47,475 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:47,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:47,475 INFO L185 omatonBuilderFactory]: Interpolants [84225#(<= ULTIMATE.start_main_~i~5 59), 84224#(<= ULTIMATE.start_main_~i~5 58), 84227#(<= ULTIMATE.start_main_~i~5 61), 84226#(<= ULTIMATE.start_main_~i~5 60), 84229#(<= ULTIMATE.start_main_~i~5 63), 84228#(<= ULTIMATE.start_main_~i~5 62), 84231#(<= ULTIMATE.start_main_~i~5 65), 84230#(<= ULTIMATE.start_main_~i~5 64), 84233#(<= ULTIMATE.start_main_~i~5 67), 84232#(<= ULTIMATE.start_main_~i~5 66), 84235#(<= ULTIMATE.start_main_~j~5 66), 84234#(<= ULTIMATE.start_main_~j~5 67), 84237#(<= ULTIMATE.start_main_~j~5 64), 84236#(<= ULTIMATE.start_main_~j~5 65), 84239#(<= ULTIMATE.start_main_~j~5 62), 84238#(<= ULTIMATE.start_main_~j~5 63), 84241#(<= ULTIMATE.start_main_~j~5 60), 84240#(<= ULTIMATE.start_main_~j~5 61), 84243#(<= ULTIMATE.start_main_~j~5 58), 84242#(<= ULTIMATE.start_main_~j~5 59), 84245#(<= ULTIMATE.start_main_~j~5 56), 84244#(<= ULTIMATE.start_main_~j~5 57), 84247#(<= ULTIMATE.start_main_~j~5 54), 84246#(<= ULTIMATE.start_main_~j~5 55), 84249#(<= ULTIMATE.start_main_~j~5 52), 84248#(<= ULTIMATE.start_main_~j~5 53), 84251#(<= ULTIMATE.start_main_~j~5 50), 84250#(<= ULTIMATE.start_main_~j~5 51), 84253#(<= ULTIMATE.start_main_~j~5 48), 84252#(<= ULTIMATE.start_main_~j~5 49), 84255#(<= ULTIMATE.start_main_~j~5 46), 84254#(<= ULTIMATE.start_main_~j~5 47), 84257#(<= ULTIMATE.start_main_~j~5 44), 84256#(<= ULTIMATE.start_main_~j~5 45), 84259#(<= ULTIMATE.start_main_~j~5 42), 84258#(<= ULTIMATE.start_main_~j~5 43), 84261#(<= ULTIMATE.start_main_~j~5 40), 84260#(<= ULTIMATE.start_main_~j~5 41), 84263#(<= ULTIMATE.start_main_~j~5 38), 84262#(<= ULTIMATE.start_main_~j~5 39), 84265#(<= ULTIMATE.start_main_~j~5 36), 84264#(<= ULTIMATE.start_main_~j~5 37), 84267#(<= ULTIMATE.start_main_~j~5 34), 84266#(<= ULTIMATE.start_main_~j~5 35), 84269#(<= ULTIMATE.start_main_~j~5 32), 84268#(<= ULTIMATE.start_main_~j~5 33), 84271#(<= ULTIMATE.start_main_~j~5 30), 84270#(<= ULTIMATE.start_main_~j~5 31), 84273#(<= ULTIMATE.start_main_~j~5 28), 84272#(<= ULTIMATE.start_main_~j~5 29), 84275#(<= ULTIMATE.start_main_~j~5 26), 84274#(<= ULTIMATE.start_main_~j~5 27), 84277#(<= ULTIMATE.start_main_~j~5 24), 84276#(<= ULTIMATE.start_main_~j~5 25), 84279#(<= ULTIMATE.start_main_~j~5 22), 84278#(<= ULTIMATE.start_main_~j~5 23), 84281#(<= ULTIMATE.start_main_~j~5 20), 84280#(<= ULTIMATE.start_main_~j~5 21), 84283#(<= ULTIMATE.start_main_~j~5 18), 84282#(<= ULTIMATE.start_main_~j~5 19), 84285#(<= ULTIMATE.start_main_~j~5 16), 84284#(<= ULTIMATE.start_main_~j~5 17), 84287#(<= ULTIMATE.start_main_~j~5 14), 84286#(<= ULTIMATE.start_main_~j~5 15), 84289#(<= ULTIMATE.start_main_~j~5 12), 84288#(<= ULTIMATE.start_main_~j~5 13), 84291#(<= ULTIMATE.start_main_~j~5 10), 84290#(<= ULTIMATE.start_main_~j~5 11), 84293#(<= ULTIMATE.start_main_~j~5 8), 84292#(<= ULTIMATE.start_main_~j~5 9), 84295#(<= ULTIMATE.start_main_~j~5 6), 84294#(<= ULTIMATE.start_main_~j~5 7), 84297#(<= ULTIMATE.start_main_~j~5 4), 84296#(<= ULTIMATE.start_main_~j~5 5), 84299#(<= ULTIMATE.start_main_~j~5 2), 84298#(<= ULTIMATE.start_main_~j~5 3), 84301#(<= ULTIMATE.start_main_~j~5 0), 84300#(<= ULTIMATE.start_main_~j~5 1), 84165#false, 84164#true, 84167#(<= ULTIMATE.start_main_~i~5 1), 84166#(<= ULTIMATE.start_main_~i~5 0), 84169#(<= ULTIMATE.start_main_~i~5 3), 84168#(<= ULTIMATE.start_main_~i~5 2), 84171#(<= ULTIMATE.start_main_~i~5 5), 84170#(<= ULTIMATE.start_main_~i~5 4), 84173#(<= ULTIMATE.start_main_~i~5 7), 84172#(<= ULTIMATE.start_main_~i~5 6), 84175#(<= ULTIMATE.start_main_~i~5 9), 84174#(<= ULTIMATE.start_main_~i~5 8), 84177#(<= ULTIMATE.start_main_~i~5 11), 84176#(<= ULTIMATE.start_main_~i~5 10), 84179#(<= ULTIMATE.start_main_~i~5 13), 84178#(<= ULTIMATE.start_main_~i~5 12), 84181#(<= ULTIMATE.start_main_~i~5 15), 84180#(<= ULTIMATE.start_main_~i~5 14), 84183#(<= ULTIMATE.start_main_~i~5 17), 84182#(<= ULTIMATE.start_main_~i~5 16), 84185#(<= ULTIMATE.start_main_~i~5 19), 84184#(<= ULTIMATE.start_main_~i~5 18), 84187#(<= ULTIMATE.start_main_~i~5 21), 84186#(<= ULTIMATE.start_main_~i~5 20), 84189#(<= ULTIMATE.start_main_~i~5 23), 84188#(<= ULTIMATE.start_main_~i~5 22), 84191#(<= ULTIMATE.start_main_~i~5 25), 84190#(<= ULTIMATE.start_main_~i~5 24), 84193#(<= ULTIMATE.start_main_~i~5 27), 84192#(<= ULTIMATE.start_main_~i~5 26), 84195#(<= ULTIMATE.start_main_~i~5 29), 84194#(<= ULTIMATE.start_main_~i~5 28), 84197#(<= ULTIMATE.start_main_~i~5 31), 84196#(<= ULTIMATE.start_main_~i~5 30), 84199#(<= ULTIMATE.start_main_~i~5 33), 84198#(<= ULTIMATE.start_main_~i~5 32), 84201#(<= ULTIMATE.start_main_~i~5 35), 84200#(<= ULTIMATE.start_main_~i~5 34), 84203#(<= ULTIMATE.start_main_~i~5 37), 84202#(<= ULTIMATE.start_main_~i~5 36), 84205#(<= ULTIMATE.start_main_~i~5 39), 84204#(<= ULTIMATE.start_main_~i~5 38), 84207#(<= ULTIMATE.start_main_~i~5 41), 84206#(<= ULTIMATE.start_main_~i~5 40), 84209#(<= ULTIMATE.start_main_~i~5 43), 84208#(<= ULTIMATE.start_main_~i~5 42), 84211#(<= ULTIMATE.start_main_~i~5 45), 84210#(<= ULTIMATE.start_main_~i~5 44), 84213#(<= ULTIMATE.start_main_~i~5 47), 84212#(<= ULTIMATE.start_main_~i~5 46), 84215#(<= ULTIMATE.start_main_~i~5 49), 84214#(<= ULTIMATE.start_main_~i~5 48), 84217#(<= ULTIMATE.start_main_~i~5 51), 84216#(<= ULTIMATE.start_main_~i~5 50), 84219#(<= ULTIMATE.start_main_~i~5 53), 84218#(<= ULTIMATE.start_main_~i~5 52), 84221#(<= ULTIMATE.start_main_~i~5 55), 84220#(<= ULTIMATE.start_main_~i~5 54), 84223#(<= ULTIMATE.start_main_~i~5 57), 84222#(<= ULTIMATE.start_main_~i~5 56)] [2018-07-23 13:41:47,476 INFO L134 CoverageAnalysis]: Checked inductivity of 6834 backedges. 4556 proven. 2278 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:47,476 INFO L450 AbstractCegarLoop]: Interpolant automaton has 138 states [2018-07-23 13:41:47,477 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 138 interpolants. [2018-07-23 13:41:47,478 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4829, Invalid=14077, Unknown=0, NotChecked=0, Total=18906 [2018-07-23 13:41:47,478 INFO L87 Difference]: Start difference. First operand 207 states and 208 transitions. Second operand 138 states. [2018-07-23 13:41:48,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:48,040 INFO L93 Difference]: Finished difference Result 347 states and 349 transitions. [2018-07-23 13:41:48,040 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2018-07-23 13:41:48,041 INFO L78 Accepts]: Start accepts. Automaton has 138 states. Word has length 206 [2018-07-23 13:41:48,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:48,041 INFO L225 Difference]: With dead ends: 347 [2018-07-23 13:41:48,041 INFO L226 Difference]: Without dead ends: 208 [2018-07-23 13:41:48,044 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 204 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6767 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9657, Invalid=32573, Unknown=0, NotChecked=0, Total=42230 [2018-07-23 13:41:48,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2018-07-23 13:41:48,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2018-07-23 13:41:48,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2018-07-23 13:41:48,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 209 transitions. [2018-07-23 13:41:48,072 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 209 transitions. Word has length 206 [2018-07-23 13:41:48,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:48,072 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 209 transitions. [2018-07-23 13:41:48,072 INFO L472 AbstractCegarLoop]: Interpolant automaton has 138 states. [2018-07-23 13:41:48,072 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 209 transitions. [2018-07-23 13:41:48,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2018-07-23 13:41:48,073 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:48,073 INFO L357 BasicCegarLoop]: trace histogram [68, 68, 67, 1, 1, 1, 1] [2018-07-23 13:41:48,074 INFO L414 AbstractCegarLoop]: === Iteration 136 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:48,074 INFO L82 PathProgramCache]: Analyzing trace with hash 1407665523, now seen corresponding path program 134 times [2018-07-23 13:41:48,074 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:48,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:48,388 INFO L134 CoverageAnalysis]: Checked inductivity of 6902 backedges. 2346 proven. 4556 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:48,389 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:48,389 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [71] total 71 [2018-07-23 13:41:48,389 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:48,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:48,389 INFO L185 omatonBuilderFactory]: Interpolants [85549#false, 85548#true, 85551#(<= 1 ULTIMATE.start_main_~k~5), 85550#(<= 0 ULTIMATE.start_main_~k~5), 85553#(<= 3 ULTIMATE.start_main_~k~5), 85552#(<= 2 ULTIMATE.start_main_~k~5), 85555#(<= 5 ULTIMATE.start_main_~k~5), 85554#(<= 4 ULTIMATE.start_main_~k~5), 85557#(<= 7 ULTIMATE.start_main_~k~5), 85556#(<= 6 ULTIMATE.start_main_~k~5), 85559#(<= 9 ULTIMATE.start_main_~k~5), 85558#(<= 8 ULTIMATE.start_main_~k~5), 85561#(<= 11 ULTIMATE.start_main_~k~5), 85560#(<= 10 ULTIMATE.start_main_~k~5), 85563#(<= 13 ULTIMATE.start_main_~k~5), 85562#(<= 12 ULTIMATE.start_main_~k~5), 85565#(<= 15 ULTIMATE.start_main_~k~5), 85564#(<= 14 ULTIMATE.start_main_~k~5), 85567#(<= 17 ULTIMATE.start_main_~k~5), 85566#(<= 16 ULTIMATE.start_main_~k~5), 85569#(<= 19 ULTIMATE.start_main_~k~5), 85568#(<= 18 ULTIMATE.start_main_~k~5), 85571#(<= 21 ULTIMATE.start_main_~k~5), 85570#(<= 20 ULTIMATE.start_main_~k~5), 85573#(<= 23 ULTIMATE.start_main_~k~5), 85572#(<= 22 ULTIMATE.start_main_~k~5), 85575#(<= 25 ULTIMATE.start_main_~k~5), 85574#(<= 24 ULTIMATE.start_main_~k~5), 85577#(<= 27 ULTIMATE.start_main_~k~5), 85576#(<= 26 ULTIMATE.start_main_~k~5), 85579#(<= 29 ULTIMATE.start_main_~k~5), 85578#(<= 28 ULTIMATE.start_main_~k~5), 85581#(<= 31 ULTIMATE.start_main_~k~5), 85580#(<= 30 ULTIMATE.start_main_~k~5), 85583#(<= 33 ULTIMATE.start_main_~k~5), 85582#(<= 32 ULTIMATE.start_main_~k~5), 85585#(<= 35 ULTIMATE.start_main_~k~5), 85584#(<= 34 ULTIMATE.start_main_~k~5), 85587#(<= 37 ULTIMATE.start_main_~k~5), 85586#(<= 36 ULTIMATE.start_main_~k~5), 85589#(<= 39 ULTIMATE.start_main_~k~5), 85588#(<= 38 ULTIMATE.start_main_~k~5), 85591#(<= 41 ULTIMATE.start_main_~k~5), 85590#(<= 40 ULTIMATE.start_main_~k~5), 85593#(<= 43 ULTIMATE.start_main_~k~5), 85592#(<= 42 ULTIMATE.start_main_~k~5), 85595#(<= 45 ULTIMATE.start_main_~k~5), 85594#(<= 44 ULTIMATE.start_main_~k~5), 85597#(<= 47 ULTIMATE.start_main_~k~5), 85596#(<= 46 ULTIMATE.start_main_~k~5), 85599#(<= 49 ULTIMATE.start_main_~k~5), 85598#(<= 48 ULTIMATE.start_main_~k~5), 85601#(<= 51 ULTIMATE.start_main_~k~5), 85600#(<= 50 ULTIMATE.start_main_~k~5), 85603#(<= 53 ULTIMATE.start_main_~k~5), 85602#(<= 52 ULTIMATE.start_main_~k~5), 85605#(<= 55 ULTIMATE.start_main_~k~5), 85604#(<= 54 ULTIMATE.start_main_~k~5), 85607#(<= 57 ULTIMATE.start_main_~k~5), 85606#(<= 56 ULTIMATE.start_main_~k~5), 85609#(<= 59 ULTIMATE.start_main_~k~5), 85608#(<= 58 ULTIMATE.start_main_~k~5), 85611#(<= 61 ULTIMATE.start_main_~k~5), 85610#(<= 60 ULTIMATE.start_main_~k~5), 85613#(<= 63 ULTIMATE.start_main_~k~5), 85612#(<= 62 ULTIMATE.start_main_~k~5), 85615#(<= 65 ULTIMATE.start_main_~k~5), 85614#(<= 64 ULTIMATE.start_main_~k~5), 85617#(<= 67 ULTIMATE.start_main_~k~5), 85616#(<= 66 ULTIMATE.start_main_~k~5), 85619#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 85618#(<= 68 ULTIMATE.start_main_~k~5)] [2018-07-23 13:41:48,390 INFO L134 CoverageAnalysis]: Checked inductivity of 6902 backedges. 2346 proven. 4556 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:48,390 INFO L450 AbstractCegarLoop]: Interpolant automaton has 72 states [2018-07-23 13:41:48,390 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2018-07-23 13:41:48,390 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2487, Invalid=2625, Unknown=0, NotChecked=0, Total=5112 [2018-07-23 13:41:48,391 INFO L87 Difference]: Start difference. First operand 208 states and 209 transitions. Second operand 72 states. [2018-07-23 13:41:48,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:48,627 INFO L93 Difference]: Finished difference Result 216 states and 217 transitions. [2018-07-23 13:41:48,627 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 140 states. [2018-07-23 13:41:48,627 INFO L78 Accepts]: Start accepts. Automaton has 72 states. Word has length 207 [2018-07-23 13:41:48,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:48,628 INFO L225 Difference]: With dead ends: 216 [2018-07-23 13:41:48,628 INFO L226 Difference]: Without dead ends: 214 [2018-07-23 13:41:48,629 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4692 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7455, Invalid=12285, Unknown=0, NotChecked=0, Total=19740 [2018-07-23 13:41:48,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2018-07-23 13:41:48,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 210. [2018-07-23 13:41:48,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2018-07-23 13:41:48,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 211 transitions. [2018-07-23 13:41:48,648 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 211 transitions. Word has length 207 [2018-07-23 13:41:48,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:48,649 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 211 transitions. [2018-07-23 13:41:48,649 INFO L472 AbstractCegarLoop]: Interpolant automaton has 72 states. [2018-07-23 13:41:48,649 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 211 transitions. [2018-07-23 13:41:48,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2018-07-23 13:41:48,649 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:48,650 INFO L357 BasicCegarLoop]: trace histogram [69, 68, 68, 1, 1, 1, 1] [2018-07-23 13:41:48,650 INFO L414 AbstractCegarLoop]: === Iteration 137 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:48,650 INFO L82 PathProgramCache]: Analyzing trace with hash -148064613, now seen corresponding path program 135 times [2018-07-23 13:41:48,650 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:48,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:49,036 INFO L134 CoverageAnalysis]: Checked inductivity of 7038 backedges. 4692 proven. 2346 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:49,037 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:49,037 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [139] total 139 [2018-07-23 13:41:49,037 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:49,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:49,037 INFO L185 omatonBuilderFactory]: Interpolants [86611#false, 86610#true, 86613#(<= ULTIMATE.start_main_~i~5 1), 86612#(<= ULTIMATE.start_main_~i~5 0), 86615#(<= ULTIMATE.start_main_~i~5 3), 86614#(<= ULTIMATE.start_main_~i~5 2), 86617#(<= ULTIMATE.start_main_~i~5 5), 86616#(<= ULTIMATE.start_main_~i~5 4), 86619#(<= ULTIMATE.start_main_~i~5 7), 86618#(<= ULTIMATE.start_main_~i~5 6), 86621#(<= ULTIMATE.start_main_~i~5 9), 86620#(<= ULTIMATE.start_main_~i~5 8), 86623#(<= ULTIMATE.start_main_~i~5 11), 86622#(<= ULTIMATE.start_main_~i~5 10), 86625#(<= ULTIMATE.start_main_~i~5 13), 86624#(<= ULTIMATE.start_main_~i~5 12), 86627#(<= ULTIMATE.start_main_~i~5 15), 86626#(<= ULTIMATE.start_main_~i~5 14), 86629#(<= ULTIMATE.start_main_~i~5 17), 86628#(<= ULTIMATE.start_main_~i~5 16), 86631#(<= ULTIMATE.start_main_~i~5 19), 86630#(<= ULTIMATE.start_main_~i~5 18), 86633#(<= ULTIMATE.start_main_~i~5 21), 86632#(<= ULTIMATE.start_main_~i~5 20), 86635#(<= ULTIMATE.start_main_~i~5 23), 86634#(<= ULTIMATE.start_main_~i~5 22), 86637#(<= ULTIMATE.start_main_~i~5 25), 86636#(<= ULTIMATE.start_main_~i~5 24), 86639#(<= ULTIMATE.start_main_~i~5 27), 86638#(<= ULTIMATE.start_main_~i~5 26), 86641#(<= ULTIMATE.start_main_~i~5 29), 86640#(<= ULTIMATE.start_main_~i~5 28), 86643#(<= ULTIMATE.start_main_~i~5 31), 86642#(<= ULTIMATE.start_main_~i~5 30), 86645#(<= ULTIMATE.start_main_~i~5 33), 86644#(<= ULTIMATE.start_main_~i~5 32), 86647#(<= ULTIMATE.start_main_~i~5 35), 86646#(<= ULTIMATE.start_main_~i~5 34), 86649#(<= ULTIMATE.start_main_~i~5 37), 86648#(<= ULTIMATE.start_main_~i~5 36), 86651#(<= ULTIMATE.start_main_~i~5 39), 86650#(<= ULTIMATE.start_main_~i~5 38), 86653#(<= ULTIMATE.start_main_~i~5 41), 86652#(<= ULTIMATE.start_main_~i~5 40), 86655#(<= ULTIMATE.start_main_~i~5 43), 86654#(<= ULTIMATE.start_main_~i~5 42), 86657#(<= ULTIMATE.start_main_~i~5 45), 86656#(<= ULTIMATE.start_main_~i~5 44), 86659#(<= ULTIMATE.start_main_~i~5 47), 86658#(<= ULTIMATE.start_main_~i~5 46), 86661#(<= ULTIMATE.start_main_~i~5 49), 86660#(<= ULTIMATE.start_main_~i~5 48), 86663#(<= ULTIMATE.start_main_~i~5 51), 86662#(<= ULTIMATE.start_main_~i~5 50), 86665#(<= ULTIMATE.start_main_~i~5 53), 86664#(<= ULTIMATE.start_main_~i~5 52), 86667#(<= ULTIMATE.start_main_~i~5 55), 86666#(<= ULTIMATE.start_main_~i~5 54), 86669#(<= ULTIMATE.start_main_~i~5 57), 86668#(<= ULTIMATE.start_main_~i~5 56), 86671#(<= ULTIMATE.start_main_~i~5 59), 86670#(<= ULTIMATE.start_main_~i~5 58), 86673#(<= ULTIMATE.start_main_~i~5 61), 86672#(<= ULTIMATE.start_main_~i~5 60), 86675#(<= ULTIMATE.start_main_~i~5 63), 86674#(<= ULTIMATE.start_main_~i~5 62), 86677#(<= ULTIMATE.start_main_~i~5 65), 86676#(<= ULTIMATE.start_main_~i~5 64), 86679#(<= ULTIMATE.start_main_~i~5 67), 86678#(<= ULTIMATE.start_main_~i~5 66), 86681#(<= ULTIMATE.start_main_~j~5 68), 86680#(<= ULTIMATE.start_main_~i~5 68), 86683#(<= ULTIMATE.start_main_~j~5 66), 86682#(<= ULTIMATE.start_main_~j~5 67), 86685#(<= ULTIMATE.start_main_~j~5 64), 86684#(<= ULTIMATE.start_main_~j~5 65), 86687#(<= ULTIMATE.start_main_~j~5 62), 86686#(<= ULTIMATE.start_main_~j~5 63), 86689#(<= ULTIMATE.start_main_~j~5 60), 86688#(<= ULTIMATE.start_main_~j~5 61), 86691#(<= ULTIMATE.start_main_~j~5 58), 86690#(<= ULTIMATE.start_main_~j~5 59), 86693#(<= ULTIMATE.start_main_~j~5 56), 86692#(<= ULTIMATE.start_main_~j~5 57), 86695#(<= ULTIMATE.start_main_~j~5 54), 86694#(<= ULTIMATE.start_main_~j~5 55), 86697#(<= ULTIMATE.start_main_~j~5 52), 86696#(<= ULTIMATE.start_main_~j~5 53), 86699#(<= ULTIMATE.start_main_~j~5 50), 86698#(<= ULTIMATE.start_main_~j~5 51), 86701#(<= ULTIMATE.start_main_~j~5 48), 86700#(<= ULTIMATE.start_main_~j~5 49), 86703#(<= ULTIMATE.start_main_~j~5 46), 86702#(<= ULTIMATE.start_main_~j~5 47), 86705#(<= ULTIMATE.start_main_~j~5 44), 86704#(<= ULTIMATE.start_main_~j~5 45), 86707#(<= ULTIMATE.start_main_~j~5 42), 86706#(<= ULTIMATE.start_main_~j~5 43), 86709#(<= ULTIMATE.start_main_~j~5 40), 86708#(<= ULTIMATE.start_main_~j~5 41), 86711#(<= ULTIMATE.start_main_~j~5 38), 86710#(<= ULTIMATE.start_main_~j~5 39), 86713#(<= ULTIMATE.start_main_~j~5 36), 86712#(<= ULTIMATE.start_main_~j~5 37), 86715#(<= ULTIMATE.start_main_~j~5 34), 86714#(<= ULTIMATE.start_main_~j~5 35), 86717#(<= ULTIMATE.start_main_~j~5 32), 86716#(<= ULTIMATE.start_main_~j~5 33), 86719#(<= ULTIMATE.start_main_~j~5 30), 86718#(<= ULTIMATE.start_main_~j~5 31), 86721#(<= ULTIMATE.start_main_~j~5 28), 86720#(<= ULTIMATE.start_main_~j~5 29), 86723#(<= ULTIMATE.start_main_~j~5 26), 86722#(<= ULTIMATE.start_main_~j~5 27), 86725#(<= ULTIMATE.start_main_~j~5 24), 86724#(<= ULTIMATE.start_main_~j~5 25), 86727#(<= ULTIMATE.start_main_~j~5 22), 86726#(<= ULTIMATE.start_main_~j~5 23), 86729#(<= ULTIMATE.start_main_~j~5 20), 86728#(<= ULTIMATE.start_main_~j~5 21), 86731#(<= ULTIMATE.start_main_~j~5 18), 86730#(<= ULTIMATE.start_main_~j~5 19), 86733#(<= ULTIMATE.start_main_~j~5 16), 86732#(<= ULTIMATE.start_main_~j~5 17), 86735#(<= ULTIMATE.start_main_~j~5 14), 86734#(<= ULTIMATE.start_main_~j~5 15), 86737#(<= ULTIMATE.start_main_~j~5 12), 86736#(<= ULTIMATE.start_main_~j~5 13), 86739#(<= ULTIMATE.start_main_~j~5 10), 86738#(<= ULTIMATE.start_main_~j~5 11), 86741#(<= ULTIMATE.start_main_~j~5 8), 86740#(<= ULTIMATE.start_main_~j~5 9), 86743#(<= ULTIMATE.start_main_~j~5 6), 86742#(<= ULTIMATE.start_main_~j~5 7), 86745#(<= ULTIMATE.start_main_~j~5 4), 86744#(<= ULTIMATE.start_main_~j~5 5), 86747#(<= ULTIMATE.start_main_~j~5 2), 86746#(<= ULTIMATE.start_main_~j~5 3), 86749#(<= ULTIMATE.start_main_~j~5 0), 86748#(<= ULTIMATE.start_main_~j~5 1)] [2018-07-23 13:41:49,038 INFO L134 CoverageAnalysis]: Checked inductivity of 7038 backedges. 4692 proven. 2346 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:49,038 INFO L450 AbstractCegarLoop]: Interpolant automaton has 140 states [2018-07-23 13:41:49,038 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 140 interpolants. [2018-07-23 13:41:49,039 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4969, Invalid=14491, Unknown=0, NotChecked=0, Total=19460 [2018-07-23 13:41:49,039 INFO L87 Difference]: Start difference. First operand 210 states and 211 transitions. Second operand 140 states. [2018-07-23 13:41:49,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:49,911 INFO L93 Difference]: Finished difference Result 352 states and 354 transitions. [2018-07-23 13:41:49,911 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 140 states. [2018-07-23 13:41:49,911 INFO L78 Accepts]: Start accepts. Automaton has 140 states. Word has length 209 [2018-07-23 13:41:49,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:49,912 INFO L225 Difference]: With dead ends: 352 [2018-07-23 13:41:49,912 INFO L226 Difference]: Without dead ends: 211 [2018-07-23 13:41:49,916 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 207 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6970 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9937, Invalid=33535, Unknown=0, NotChecked=0, Total=43472 [2018-07-23 13:41:49,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2018-07-23 13:41:49,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2018-07-23 13:41:49,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2018-07-23 13:41:49,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 212 transitions. [2018-07-23 13:41:49,945 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 212 transitions. Word has length 209 [2018-07-23 13:41:49,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:49,946 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 212 transitions. [2018-07-23 13:41:49,946 INFO L472 AbstractCegarLoop]: Interpolant automaton has 140 states. [2018-07-23 13:41:49,946 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 212 transitions. [2018-07-23 13:41:49,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2018-07-23 13:41:49,946 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:49,946 INFO L357 BasicCegarLoop]: trace histogram [69, 69, 68, 1, 1, 1, 1] [2018-07-23 13:41:49,947 INFO L414 AbstractCegarLoop]: === Iteration 138 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:49,947 INFO L82 PathProgramCache]: Analyzing trace with hash 1964270658, now seen corresponding path program 136 times [2018-07-23 13:41:49,947 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:50,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:50,200 INFO L134 CoverageAnalysis]: Checked inductivity of 7107 backedges. 2415 proven. 4692 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:50,201 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:50,201 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [72] total 72 [2018-07-23 13:41:50,201 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:50,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:50,201 INFO L185 omatonBuilderFactory]: Interpolants [88065#(<= 49 ULTIMATE.start_main_~k~5), 88064#(<= 48 ULTIMATE.start_main_~k~5), 88067#(<= 51 ULTIMATE.start_main_~k~5), 88066#(<= 50 ULTIMATE.start_main_~k~5), 88069#(<= 53 ULTIMATE.start_main_~k~5), 88068#(<= 52 ULTIMATE.start_main_~k~5), 88071#(<= 55 ULTIMATE.start_main_~k~5), 88070#(<= 54 ULTIMATE.start_main_~k~5), 88073#(<= 57 ULTIMATE.start_main_~k~5), 88072#(<= 56 ULTIMATE.start_main_~k~5), 88075#(<= 59 ULTIMATE.start_main_~k~5), 88074#(<= 58 ULTIMATE.start_main_~k~5), 88077#(<= 61 ULTIMATE.start_main_~k~5), 88076#(<= 60 ULTIMATE.start_main_~k~5), 88079#(<= 63 ULTIMATE.start_main_~k~5), 88078#(<= 62 ULTIMATE.start_main_~k~5), 88081#(<= 65 ULTIMATE.start_main_~k~5), 88080#(<= 64 ULTIMATE.start_main_~k~5), 88083#(<= 67 ULTIMATE.start_main_~k~5), 88082#(<= 66 ULTIMATE.start_main_~k~5), 88085#(<= 69 ULTIMATE.start_main_~k~5), 88084#(<= 68 ULTIMATE.start_main_~k~5), 88086#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 88015#false, 88014#true, 88017#(<= 1 ULTIMATE.start_main_~k~5), 88016#(<= 0 ULTIMATE.start_main_~k~5), 88019#(<= 3 ULTIMATE.start_main_~k~5), 88018#(<= 2 ULTIMATE.start_main_~k~5), 88021#(<= 5 ULTIMATE.start_main_~k~5), 88020#(<= 4 ULTIMATE.start_main_~k~5), 88023#(<= 7 ULTIMATE.start_main_~k~5), 88022#(<= 6 ULTIMATE.start_main_~k~5), 88025#(<= 9 ULTIMATE.start_main_~k~5), 88024#(<= 8 ULTIMATE.start_main_~k~5), 88027#(<= 11 ULTIMATE.start_main_~k~5), 88026#(<= 10 ULTIMATE.start_main_~k~5), 88029#(<= 13 ULTIMATE.start_main_~k~5), 88028#(<= 12 ULTIMATE.start_main_~k~5), 88031#(<= 15 ULTIMATE.start_main_~k~5), 88030#(<= 14 ULTIMATE.start_main_~k~5), 88033#(<= 17 ULTIMATE.start_main_~k~5), 88032#(<= 16 ULTIMATE.start_main_~k~5), 88035#(<= 19 ULTIMATE.start_main_~k~5), 88034#(<= 18 ULTIMATE.start_main_~k~5), 88037#(<= 21 ULTIMATE.start_main_~k~5), 88036#(<= 20 ULTIMATE.start_main_~k~5), 88039#(<= 23 ULTIMATE.start_main_~k~5), 88038#(<= 22 ULTIMATE.start_main_~k~5), 88041#(<= 25 ULTIMATE.start_main_~k~5), 88040#(<= 24 ULTIMATE.start_main_~k~5), 88043#(<= 27 ULTIMATE.start_main_~k~5), 88042#(<= 26 ULTIMATE.start_main_~k~5), 88045#(<= 29 ULTIMATE.start_main_~k~5), 88044#(<= 28 ULTIMATE.start_main_~k~5), 88047#(<= 31 ULTIMATE.start_main_~k~5), 88046#(<= 30 ULTIMATE.start_main_~k~5), 88049#(<= 33 ULTIMATE.start_main_~k~5), 88048#(<= 32 ULTIMATE.start_main_~k~5), 88051#(<= 35 ULTIMATE.start_main_~k~5), 88050#(<= 34 ULTIMATE.start_main_~k~5), 88053#(<= 37 ULTIMATE.start_main_~k~5), 88052#(<= 36 ULTIMATE.start_main_~k~5), 88055#(<= 39 ULTIMATE.start_main_~k~5), 88054#(<= 38 ULTIMATE.start_main_~k~5), 88057#(<= 41 ULTIMATE.start_main_~k~5), 88056#(<= 40 ULTIMATE.start_main_~k~5), 88059#(<= 43 ULTIMATE.start_main_~k~5), 88058#(<= 42 ULTIMATE.start_main_~k~5), 88061#(<= 45 ULTIMATE.start_main_~k~5), 88060#(<= 44 ULTIMATE.start_main_~k~5), 88063#(<= 47 ULTIMATE.start_main_~k~5), 88062#(<= 46 ULTIMATE.start_main_~k~5)] [2018-07-23 13:41:50,202 INFO L134 CoverageAnalysis]: Checked inductivity of 7107 backedges. 2415 proven. 4692 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:50,202 INFO L450 AbstractCegarLoop]: Interpolant automaton has 73 states [2018-07-23 13:41:50,203 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2018-07-23 13:41:50,203 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2558, Invalid=2698, Unknown=0, NotChecked=0, Total=5256 [2018-07-23 13:41:50,203 INFO L87 Difference]: Start difference. First operand 211 states and 212 transitions. Second operand 73 states. [2018-07-23 13:41:50,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:50,450 INFO L93 Difference]: Finished difference Result 219 states and 220 transitions. [2018-07-23 13:41:50,450 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 142 states. [2018-07-23 13:41:50,451 INFO L78 Accepts]: Start accepts. Automaton has 73 states. Word has length 210 [2018-07-23 13:41:50,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:50,451 INFO L225 Difference]: With dead ends: 219 [2018-07-23 13:41:50,451 INFO L226 Difference]: Without dead ends: 217 [2018-07-23 13:41:50,452 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4830 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7668, Invalid=12638, Unknown=0, NotChecked=0, Total=20306 [2018-07-23 13:41:50,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2018-07-23 13:41:50,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 213. [2018-07-23 13:41:50,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2018-07-23 13:41:50,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 214 transitions. [2018-07-23 13:41:50,473 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 214 transitions. Word has length 210 [2018-07-23 13:41:50,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:50,473 INFO L471 AbstractCegarLoop]: Abstraction has 213 states and 214 transitions. [2018-07-23 13:41:50,473 INFO L472 AbstractCegarLoop]: Interpolant automaton has 73 states. [2018-07-23 13:41:50,474 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 214 transitions. [2018-07-23 13:41:50,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2018-07-23 13:41:50,474 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:50,474 INFO L357 BasicCegarLoop]: trace histogram [70, 69, 69, 1, 1, 1, 1] [2018-07-23 13:41:50,474 INFO L414 AbstractCegarLoop]: === Iteration 139 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:50,474 INFO L82 PathProgramCache]: Analyzing trace with hash -2121441878, now seen corresponding path program 137 times [2018-07-23 13:41:50,475 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:50,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:50,953 INFO L134 CoverageAnalysis]: Checked inductivity of 7245 backedges. 4830 proven. 2415 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:50,953 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:50,953 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [141] total 141 [2018-07-23 13:41:50,954 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:50,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:50,954 INFO L185 omatonBuilderFactory]: Interpolants [89091#true, 89093#(<= ULTIMATE.start_main_~i~5 0), 89092#false, 89095#(<= ULTIMATE.start_main_~i~5 2), 89094#(<= ULTIMATE.start_main_~i~5 1), 89097#(<= ULTIMATE.start_main_~i~5 4), 89096#(<= ULTIMATE.start_main_~i~5 3), 89099#(<= ULTIMATE.start_main_~i~5 6), 89098#(<= ULTIMATE.start_main_~i~5 5), 89101#(<= ULTIMATE.start_main_~i~5 8), 89100#(<= ULTIMATE.start_main_~i~5 7), 89103#(<= ULTIMATE.start_main_~i~5 10), 89102#(<= ULTIMATE.start_main_~i~5 9), 89105#(<= ULTIMATE.start_main_~i~5 12), 89104#(<= ULTIMATE.start_main_~i~5 11), 89107#(<= ULTIMATE.start_main_~i~5 14), 89106#(<= ULTIMATE.start_main_~i~5 13), 89109#(<= ULTIMATE.start_main_~i~5 16), 89108#(<= ULTIMATE.start_main_~i~5 15), 89111#(<= ULTIMATE.start_main_~i~5 18), 89110#(<= ULTIMATE.start_main_~i~5 17), 89113#(<= ULTIMATE.start_main_~i~5 20), 89112#(<= ULTIMATE.start_main_~i~5 19), 89115#(<= ULTIMATE.start_main_~i~5 22), 89114#(<= ULTIMATE.start_main_~i~5 21), 89117#(<= ULTIMATE.start_main_~i~5 24), 89116#(<= ULTIMATE.start_main_~i~5 23), 89119#(<= ULTIMATE.start_main_~i~5 26), 89118#(<= ULTIMATE.start_main_~i~5 25), 89121#(<= ULTIMATE.start_main_~i~5 28), 89120#(<= ULTIMATE.start_main_~i~5 27), 89123#(<= ULTIMATE.start_main_~i~5 30), 89122#(<= ULTIMATE.start_main_~i~5 29), 89125#(<= ULTIMATE.start_main_~i~5 32), 89124#(<= ULTIMATE.start_main_~i~5 31), 89127#(<= ULTIMATE.start_main_~i~5 34), 89126#(<= ULTIMATE.start_main_~i~5 33), 89129#(<= ULTIMATE.start_main_~i~5 36), 89128#(<= ULTIMATE.start_main_~i~5 35), 89131#(<= ULTIMATE.start_main_~i~5 38), 89130#(<= ULTIMATE.start_main_~i~5 37), 89133#(<= ULTIMATE.start_main_~i~5 40), 89132#(<= ULTIMATE.start_main_~i~5 39), 89135#(<= ULTIMATE.start_main_~i~5 42), 89134#(<= ULTIMATE.start_main_~i~5 41), 89137#(<= ULTIMATE.start_main_~i~5 44), 89136#(<= ULTIMATE.start_main_~i~5 43), 89139#(<= ULTIMATE.start_main_~i~5 46), 89138#(<= ULTIMATE.start_main_~i~5 45), 89141#(<= ULTIMATE.start_main_~i~5 48), 89140#(<= ULTIMATE.start_main_~i~5 47), 89143#(<= ULTIMATE.start_main_~i~5 50), 89142#(<= ULTIMATE.start_main_~i~5 49), 89145#(<= ULTIMATE.start_main_~i~5 52), 89144#(<= ULTIMATE.start_main_~i~5 51), 89147#(<= ULTIMATE.start_main_~i~5 54), 89146#(<= ULTIMATE.start_main_~i~5 53), 89149#(<= ULTIMATE.start_main_~i~5 56), 89148#(<= ULTIMATE.start_main_~i~5 55), 89151#(<= ULTIMATE.start_main_~i~5 58), 89150#(<= ULTIMATE.start_main_~i~5 57), 89153#(<= ULTIMATE.start_main_~i~5 60), 89152#(<= ULTIMATE.start_main_~i~5 59), 89155#(<= ULTIMATE.start_main_~i~5 62), 89154#(<= ULTIMATE.start_main_~i~5 61), 89157#(<= ULTIMATE.start_main_~i~5 64), 89156#(<= ULTIMATE.start_main_~i~5 63), 89159#(<= ULTIMATE.start_main_~i~5 66), 89158#(<= ULTIMATE.start_main_~i~5 65), 89161#(<= ULTIMATE.start_main_~i~5 68), 89160#(<= ULTIMATE.start_main_~i~5 67), 89163#(<= ULTIMATE.start_main_~j~5 69), 89162#(<= ULTIMATE.start_main_~i~5 69), 89165#(<= ULTIMATE.start_main_~j~5 67), 89164#(<= ULTIMATE.start_main_~j~5 68), 89167#(<= ULTIMATE.start_main_~j~5 65), 89166#(<= ULTIMATE.start_main_~j~5 66), 89169#(<= ULTIMATE.start_main_~j~5 63), 89168#(<= ULTIMATE.start_main_~j~5 64), 89171#(<= ULTIMATE.start_main_~j~5 61), 89170#(<= ULTIMATE.start_main_~j~5 62), 89173#(<= ULTIMATE.start_main_~j~5 59), 89172#(<= ULTIMATE.start_main_~j~5 60), 89175#(<= ULTIMATE.start_main_~j~5 57), 89174#(<= ULTIMATE.start_main_~j~5 58), 89177#(<= ULTIMATE.start_main_~j~5 55), 89176#(<= ULTIMATE.start_main_~j~5 56), 89179#(<= ULTIMATE.start_main_~j~5 53), 89178#(<= ULTIMATE.start_main_~j~5 54), 89181#(<= ULTIMATE.start_main_~j~5 51), 89180#(<= ULTIMATE.start_main_~j~5 52), 89183#(<= ULTIMATE.start_main_~j~5 49), 89182#(<= ULTIMATE.start_main_~j~5 50), 89185#(<= ULTIMATE.start_main_~j~5 47), 89184#(<= ULTIMATE.start_main_~j~5 48), 89187#(<= ULTIMATE.start_main_~j~5 45), 89186#(<= ULTIMATE.start_main_~j~5 46), 89189#(<= ULTIMATE.start_main_~j~5 43), 89188#(<= ULTIMATE.start_main_~j~5 44), 89191#(<= ULTIMATE.start_main_~j~5 41), 89190#(<= ULTIMATE.start_main_~j~5 42), 89193#(<= ULTIMATE.start_main_~j~5 39), 89192#(<= ULTIMATE.start_main_~j~5 40), 89195#(<= ULTIMATE.start_main_~j~5 37), 89194#(<= ULTIMATE.start_main_~j~5 38), 89197#(<= ULTIMATE.start_main_~j~5 35), 89196#(<= ULTIMATE.start_main_~j~5 36), 89199#(<= ULTIMATE.start_main_~j~5 33), 89198#(<= ULTIMATE.start_main_~j~5 34), 89201#(<= ULTIMATE.start_main_~j~5 31), 89200#(<= ULTIMATE.start_main_~j~5 32), 89203#(<= ULTIMATE.start_main_~j~5 29), 89202#(<= ULTIMATE.start_main_~j~5 30), 89205#(<= ULTIMATE.start_main_~j~5 27), 89204#(<= ULTIMATE.start_main_~j~5 28), 89207#(<= ULTIMATE.start_main_~j~5 25), 89206#(<= ULTIMATE.start_main_~j~5 26), 89209#(<= ULTIMATE.start_main_~j~5 23), 89208#(<= ULTIMATE.start_main_~j~5 24), 89211#(<= ULTIMATE.start_main_~j~5 21), 89210#(<= ULTIMATE.start_main_~j~5 22), 89213#(<= ULTIMATE.start_main_~j~5 19), 89212#(<= ULTIMATE.start_main_~j~5 20), 89215#(<= ULTIMATE.start_main_~j~5 17), 89214#(<= ULTIMATE.start_main_~j~5 18), 89217#(<= ULTIMATE.start_main_~j~5 15), 89216#(<= ULTIMATE.start_main_~j~5 16), 89219#(<= ULTIMATE.start_main_~j~5 13), 89218#(<= ULTIMATE.start_main_~j~5 14), 89221#(<= ULTIMATE.start_main_~j~5 11), 89220#(<= ULTIMATE.start_main_~j~5 12), 89223#(<= ULTIMATE.start_main_~j~5 9), 89222#(<= ULTIMATE.start_main_~j~5 10), 89225#(<= ULTIMATE.start_main_~j~5 7), 89224#(<= ULTIMATE.start_main_~j~5 8), 89227#(<= ULTIMATE.start_main_~j~5 5), 89226#(<= ULTIMATE.start_main_~j~5 6), 89229#(<= ULTIMATE.start_main_~j~5 3), 89228#(<= ULTIMATE.start_main_~j~5 4), 89231#(<= ULTIMATE.start_main_~j~5 1), 89230#(<= ULTIMATE.start_main_~j~5 2), 89232#(<= ULTIMATE.start_main_~j~5 0)] [2018-07-23 13:41:50,955 INFO L134 CoverageAnalysis]: Checked inductivity of 7245 backedges. 4830 proven. 2415 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:50,955 INFO L450 AbstractCegarLoop]: Interpolant automaton has 142 states [2018-07-23 13:41:50,956 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 142 interpolants. [2018-07-23 13:41:50,957 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5111, Invalid=14911, Unknown=0, NotChecked=0, Total=20022 [2018-07-23 13:41:50,957 INFO L87 Difference]: Start difference. First operand 213 states and 214 transitions. Second operand 142 states. [2018-07-23 13:41:51,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:51,842 INFO L93 Difference]: Finished difference Result 357 states and 359 transitions. [2018-07-23 13:41:51,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 142 states. [2018-07-23 13:41:51,842 INFO L78 Accepts]: Start accepts. Automaton has 142 states. Word has length 212 [2018-07-23 13:41:51,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:51,842 INFO L225 Difference]: With dead ends: 357 [2018-07-23 13:41:51,842 INFO L226 Difference]: Without dead ends: 214 [2018-07-23 13:41:51,845 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 210 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7176 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=10221, Invalid=34511, Unknown=0, NotChecked=0, Total=44732 [2018-07-23 13:41:51,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2018-07-23 13:41:51,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2018-07-23 13:41:51,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2018-07-23 13:41:51,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 215 transitions. [2018-07-23 13:41:51,865 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 215 transitions. Word has length 212 [2018-07-23 13:41:51,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:51,865 INFO L471 AbstractCegarLoop]: Abstraction has 214 states and 215 transitions. [2018-07-23 13:41:51,865 INFO L472 AbstractCegarLoop]: Interpolant automaton has 142 states. [2018-07-23 13:41:51,865 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 215 transitions. [2018-07-23 13:41:51,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2018-07-23 13:41:51,866 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:51,866 INFO L357 BasicCegarLoop]: trace histogram [70, 70, 69, 1, 1, 1, 1] [2018-07-23 13:41:51,866 INFO L414 AbstractCegarLoop]: === Iteration 140 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:51,867 INFO L82 PathProgramCache]: Analyzing trace with hash 892762787, now seen corresponding path program 138 times [2018-07-23 13:41:51,867 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:51,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:52,131 INFO L134 CoverageAnalysis]: Checked inductivity of 7315 backedges. 2485 proven. 4830 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:52,131 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:52,132 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [73] total 73 [2018-07-23 13:41:52,132 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:52,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:52,132 INFO L185 omatonBuilderFactory]: Interpolants [90515#true, 90517#(<= 0 ULTIMATE.start_main_~k~5), 90516#false, 90519#(<= 2 ULTIMATE.start_main_~k~5), 90518#(<= 1 ULTIMATE.start_main_~k~5), 90521#(<= 4 ULTIMATE.start_main_~k~5), 90520#(<= 3 ULTIMATE.start_main_~k~5), 90523#(<= 6 ULTIMATE.start_main_~k~5), 90522#(<= 5 ULTIMATE.start_main_~k~5), 90525#(<= 8 ULTIMATE.start_main_~k~5), 90524#(<= 7 ULTIMATE.start_main_~k~5), 90527#(<= 10 ULTIMATE.start_main_~k~5), 90526#(<= 9 ULTIMATE.start_main_~k~5), 90529#(<= 12 ULTIMATE.start_main_~k~5), 90528#(<= 11 ULTIMATE.start_main_~k~5), 90531#(<= 14 ULTIMATE.start_main_~k~5), 90530#(<= 13 ULTIMATE.start_main_~k~5), 90533#(<= 16 ULTIMATE.start_main_~k~5), 90532#(<= 15 ULTIMATE.start_main_~k~5), 90535#(<= 18 ULTIMATE.start_main_~k~5), 90534#(<= 17 ULTIMATE.start_main_~k~5), 90537#(<= 20 ULTIMATE.start_main_~k~5), 90536#(<= 19 ULTIMATE.start_main_~k~5), 90539#(<= 22 ULTIMATE.start_main_~k~5), 90538#(<= 21 ULTIMATE.start_main_~k~5), 90541#(<= 24 ULTIMATE.start_main_~k~5), 90540#(<= 23 ULTIMATE.start_main_~k~5), 90543#(<= 26 ULTIMATE.start_main_~k~5), 90542#(<= 25 ULTIMATE.start_main_~k~5), 90545#(<= 28 ULTIMATE.start_main_~k~5), 90544#(<= 27 ULTIMATE.start_main_~k~5), 90547#(<= 30 ULTIMATE.start_main_~k~5), 90546#(<= 29 ULTIMATE.start_main_~k~5), 90549#(<= 32 ULTIMATE.start_main_~k~5), 90548#(<= 31 ULTIMATE.start_main_~k~5), 90551#(<= 34 ULTIMATE.start_main_~k~5), 90550#(<= 33 ULTIMATE.start_main_~k~5), 90553#(<= 36 ULTIMATE.start_main_~k~5), 90552#(<= 35 ULTIMATE.start_main_~k~5), 90555#(<= 38 ULTIMATE.start_main_~k~5), 90554#(<= 37 ULTIMATE.start_main_~k~5), 90557#(<= 40 ULTIMATE.start_main_~k~5), 90556#(<= 39 ULTIMATE.start_main_~k~5), 90559#(<= 42 ULTIMATE.start_main_~k~5), 90558#(<= 41 ULTIMATE.start_main_~k~5), 90561#(<= 44 ULTIMATE.start_main_~k~5), 90560#(<= 43 ULTIMATE.start_main_~k~5), 90563#(<= 46 ULTIMATE.start_main_~k~5), 90562#(<= 45 ULTIMATE.start_main_~k~5), 90565#(<= 48 ULTIMATE.start_main_~k~5), 90564#(<= 47 ULTIMATE.start_main_~k~5), 90567#(<= 50 ULTIMATE.start_main_~k~5), 90566#(<= 49 ULTIMATE.start_main_~k~5), 90569#(<= 52 ULTIMATE.start_main_~k~5), 90568#(<= 51 ULTIMATE.start_main_~k~5), 90571#(<= 54 ULTIMATE.start_main_~k~5), 90570#(<= 53 ULTIMATE.start_main_~k~5), 90573#(<= 56 ULTIMATE.start_main_~k~5), 90572#(<= 55 ULTIMATE.start_main_~k~5), 90575#(<= 58 ULTIMATE.start_main_~k~5), 90574#(<= 57 ULTIMATE.start_main_~k~5), 90577#(<= 60 ULTIMATE.start_main_~k~5), 90576#(<= 59 ULTIMATE.start_main_~k~5), 90579#(<= 62 ULTIMATE.start_main_~k~5), 90578#(<= 61 ULTIMATE.start_main_~k~5), 90581#(<= 64 ULTIMATE.start_main_~k~5), 90580#(<= 63 ULTIMATE.start_main_~k~5), 90583#(<= 66 ULTIMATE.start_main_~k~5), 90582#(<= 65 ULTIMATE.start_main_~k~5), 90585#(<= 68 ULTIMATE.start_main_~k~5), 90584#(<= 67 ULTIMATE.start_main_~k~5), 90587#(<= 70 ULTIMATE.start_main_~k~5), 90586#(<= 69 ULTIMATE.start_main_~k~5), 90588#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond)] [2018-07-23 13:41:52,133 INFO L134 CoverageAnalysis]: Checked inductivity of 7315 backedges. 2485 proven. 4830 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:52,133 INFO L450 AbstractCegarLoop]: Interpolant automaton has 74 states [2018-07-23 13:41:52,133 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2018-07-23 13:41:52,133 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2630, Invalid=2772, Unknown=0, NotChecked=0, Total=5402 [2018-07-23 13:41:52,134 INFO L87 Difference]: Start difference. First operand 214 states and 215 transitions. Second operand 74 states. [2018-07-23 13:41:52,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:52,370 INFO L93 Difference]: Finished difference Result 222 states and 223 transitions. [2018-07-23 13:41:52,370 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2018-07-23 13:41:52,370 INFO L78 Accepts]: Start accepts. Automaton has 74 states. Word has length 213 [2018-07-23 13:41:52,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:52,371 INFO L225 Difference]: With dead ends: 222 [2018-07-23 13:41:52,371 INFO L226 Difference]: Without dead ends: 220 [2018-07-23 13:41:52,372 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4970 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7884, Invalid=12996, Unknown=0, NotChecked=0, Total=20880 [2018-07-23 13:41:52,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2018-07-23 13:41:52,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 216. [2018-07-23 13:41:52,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2018-07-23 13:41:52,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 217 transitions. [2018-07-23 13:41:52,397 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 217 transitions. Word has length 213 [2018-07-23 13:41:52,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:52,397 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 217 transitions. [2018-07-23 13:41:52,398 INFO L472 AbstractCegarLoop]: Interpolant automaton has 74 states. [2018-07-23 13:41:52,398 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 217 transitions. [2018-07-23 13:41:52,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2018-07-23 13:41:52,398 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:52,398 INFO L357 BasicCegarLoop]: trace histogram [71, 70, 70, 1, 1, 1, 1] [2018-07-23 13:41:52,399 INFO L414 AbstractCegarLoop]: === Iteration 141 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:52,399 INFO L82 PathProgramCache]: Analyzing trace with hash -1048354869, now seen corresponding path program 139 times [2018-07-23 13:41:52,399 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:52,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:52,943 INFO L134 CoverageAnalysis]: Checked inductivity of 7455 backedges. 4970 proven. 2485 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:52,943 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:52,943 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [143] total 143 [2018-07-23 13:41:52,943 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:52,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:52,944 INFO L185 omatonBuilderFactory]: Interpolants [91649#(<= ULTIMATE.start_main_~i~5 40), 91648#(<= ULTIMATE.start_main_~i~5 39), 91651#(<= ULTIMATE.start_main_~i~5 42), 91650#(<= ULTIMATE.start_main_~i~5 41), 91653#(<= ULTIMATE.start_main_~i~5 44), 91652#(<= ULTIMATE.start_main_~i~5 43), 91655#(<= ULTIMATE.start_main_~i~5 46), 91654#(<= ULTIMATE.start_main_~i~5 45), 91657#(<= ULTIMATE.start_main_~i~5 48), 91656#(<= ULTIMATE.start_main_~i~5 47), 91659#(<= ULTIMATE.start_main_~i~5 50), 91658#(<= ULTIMATE.start_main_~i~5 49), 91661#(<= ULTIMATE.start_main_~i~5 52), 91660#(<= ULTIMATE.start_main_~i~5 51), 91663#(<= ULTIMATE.start_main_~i~5 54), 91662#(<= ULTIMATE.start_main_~i~5 53), 91665#(<= ULTIMATE.start_main_~i~5 56), 91664#(<= ULTIMATE.start_main_~i~5 55), 91667#(<= ULTIMATE.start_main_~i~5 58), 91666#(<= ULTIMATE.start_main_~i~5 57), 91669#(<= ULTIMATE.start_main_~i~5 60), 91668#(<= ULTIMATE.start_main_~i~5 59), 91671#(<= ULTIMATE.start_main_~i~5 62), 91670#(<= ULTIMATE.start_main_~i~5 61), 91673#(<= ULTIMATE.start_main_~i~5 64), 91672#(<= ULTIMATE.start_main_~i~5 63), 91675#(<= ULTIMATE.start_main_~i~5 66), 91674#(<= ULTIMATE.start_main_~i~5 65), 91677#(<= ULTIMATE.start_main_~i~5 68), 91676#(<= ULTIMATE.start_main_~i~5 67), 91679#(<= ULTIMATE.start_main_~i~5 70), 91678#(<= ULTIMATE.start_main_~i~5 69), 91681#(<= ULTIMATE.start_main_~j~5 69), 91680#(<= ULTIMATE.start_main_~j~5 70), 91683#(<= ULTIMATE.start_main_~j~5 67), 91682#(<= ULTIMATE.start_main_~j~5 68), 91685#(<= ULTIMATE.start_main_~j~5 65), 91684#(<= ULTIMATE.start_main_~j~5 66), 91687#(<= ULTIMATE.start_main_~j~5 63), 91686#(<= ULTIMATE.start_main_~j~5 64), 91689#(<= ULTIMATE.start_main_~j~5 61), 91688#(<= ULTIMATE.start_main_~j~5 62), 91691#(<= ULTIMATE.start_main_~j~5 59), 91690#(<= ULTIMATE.start_main_~j~5 60), 91693#(<= ULTIMATE.start_main_~j~5 57), 91692#(<= ULTIMATE.start_main_~j~5 58), 91695#(<= ULTIMATE.start_main_~j~5 55), 91694#(<= ULTIMATE.start_main_~j~5 56), 91697#(<= ULTIMATE.start_main_~j~5 53), 91696#(<= ULTIMATE.start_main_~j~5 54), 91699#(<= ULTIMATE.start_main_~j~5 51), 91698#(<= ULTIMATE.start_main_~j~5 52), 91701#(<= ULTIMATE.start_main_~j~5 49), 91700#(<= ULTIMATE.start_main_~j~5 50), 91703#(<= ULTIMATE.start_main_~j~5 47), 91702#(<= ULTIMATE.start_main_~j~5 48), 91705#(<= ULTIMATE.start_main_~j~5 45), 91704#(<= ULTIMATE.start_main_~j~5 46), 91707#(<= ULTIMATE.start_main_~j~5 43), 91706#(<= ULTIMATE.start_main_~j~5 44), 91709#(<= ULTIMATE.start_main_~j~5 41), 91708#(<= ULTIMATE.start_main_~j~5 42), 91711#(<= ULTIMATE.start_main_~j~5 39), 91710#(<= ULTIMATE.start_main_~j~5 40), 91713#(<= ULTIMATE.start_main_~j~5 37), 91712#(<= ULTIMATE.start_main_~j~5 38), 91715#(<= ULTIMATE.start_main_~j~5 35), 91714#(<= ULTIMATE.start_main_~j~5 36), 91717#(<= ULTIMATE.start_main_~j~5 33), 91716#(<= ULTIMATE.start_main_~j~5 34), 91719#(<= ULTIMATE.start_main_~j~5 31), 91718#(<= ULTIMATE.start_main_~j~5 32), 91721#(<= ULTIMATE.start_main_~j~5 29), 91720#(<= ULTIMATE.start_main_~j~5 30), 91723#(<= ULTIMATE.start_main_~j~5 27), 91722#(<= ULTIMATE.start_main_~j~5 28), 91725#(<= ULTIMATE.start_main_~j~5 25), 91724#(<= ULTIMATE.start_main_~j~5 26), 91727#(<= ULTIMATE.start_main_~j~5 23), 91726#(<= ULTIMATE.start_main_~j~5 24), 91729#(<= ULTIMATE.start_main_~j~5 21), 91728#(<= ULTIMATE.start_main_~j~5 22), 91731#(<= ULTIMATE.start_main_~j~5 19), 91730#(<= ULTIMATE.start_main_~j~5 20), 91733#(<= ULTIMATE.start_main_~j~5 17), 91732#(<= ULTIMATE.start_main_~j~5 18), 91735#(<= ULTIMATE.start_main_~j~5 15), 91734#(<= ULTIMATE.start_main_~j~5 16), 91737#(<= ULTIMATE.start_main_~j~5 13), 91736#(<= ULTIMATE.start_main_~j~5 14), 91739#(<= ULTIMATE.start_main_~j~5 11), 91738#(<= ULTIMATE.start_main_~j~5 12), 91741#(<= ULTIMATE.start_main_~j~5 9), 91740#(<= ULTIMATE.start_main_~j~5 10), 91743#(<= ULTIMATE.start_main_~j~5 7), 91742#(<= ULTIMATE.start_main_~j~5 8), 91745#(<= ULTIMATE.start_main_~j~5 5), 91744#(<= ULTIMATE.start_main_~j~5 6), 91747#(<= ULTIMATE.start_main_~j~5 3), 91746#(<= ULTIMATE.start_main_~j~5 4), 91749#(<= ULTIMATE.start_main_~j~5 1), 91748#(<= ULTIMATE.start_main_~j~5 2), 91750#(<= ULTIMATE.start_main_~j~5 0), 91607#true, 91609#(<= ULTIMATE.start_main_~i~5 0), 91608#false, 91611#(<= ULTIMATE.start_main_~i~5 2), 91610#(<= ULTIMATE.start_main_~i~5 1), 91613#(<= ULTIMATE.start_main_~i~5 4), 91612#(<= ULTIMATE.start_main_~i~5 3), 91615#(<= ULTIMATE.start_main_~i~5 6), 91614#(<= ULTIMATE.start_main_~i~5 5), 91617#(<= ULTIMATE.start_main_~i~5 8), 91616#(<= ULTIMATE.start_main_~i~5 7), 91619#(<= ULTIMATE.start_main_~i~5 10), 91618#(<= ULTIMATE.start_main_~i~5 9), 91621#(<= ULTIMATE.start_main_~i~5 12), 91620#(<= ULTIMATE.start_main_~i~5 11), 91623#(<= ULTIMATE.start_main_~i~5 14), 91622#(<= ULTIMATE.start_main_~i~5 13), 91625#(<= ULTIMATE.start_main_~i~5 16), 91624#(<= ULTIMATE.start_main_~i~5 15), 91627#(<= ULTIMATE.start_main_~i~5 18), 91626#(<= ULTIMATE.start_main_~i~5 17), 91629#(<= ULTIMATE.start_main_~i~5 20), 91628#(<= ULTIMATE.start_main_~i~5 19), 91631#(<= ULTIMATE.start_main_~i~5 22), 91630#(<= ULTIMATE.start_main_~i~5 21), 91633#(<= ULTIMATE.start_main_~i~5 24), 91632#(<= ULTIMATE.start_main_~i~5 23), 91635#(<= ULTIMATE.start_main_~i~5 26), 91634#(<= ULTIMATE.start_main_~i~5 25), 91637#(<= ULTIMATE.start_main_~i~5 28), 91636#(<= ULTIMATE.start_main_~i~5 27), 91639#(<= ULTIMATE.start_main_~i~5 30), 91638#(<= ULTIMATE.start_main_~i~5 29), 91641#(<= ULTIMATE.start_main_~i~5 32), 91640#(<= ULTIMATE.start_main_~i~5 31), 91643#(<= ULTIMATE.start_main_~i~5 34), 91642#(<= ULTIMATE.start_main_~i~5 33), 91645#(<= ULTIMATE.start_main_~i~5 36), 91644#(<= ULTIMATE.start_main_~i~5 35), 91647#(<= ULTIMATE.start_main_~i~5 38), 91646#(<= ULTIMATE.start_main_~i~5 37)] [2018-07-23 13:41:52,944 INFO L134 CoverageAnalysis]: Checked inductivity of 7455 backedges. 4970 proven. 2485 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:52,945 INFO L450 AbstractCegarLoop]: Interpolant automaton has 144 states [2018-07-23 13:41:52,946 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 144 interpolants. [2018-07-23 13:41:52,947 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5255, Invalid=15337, Unknown=0, NotChecked=0, Total=20592 [2018-07-23 13:41:52,947 INFO L87 Difference]: Start difference. First operand 216 states and 217 transitions. Second operand 144 states. [2018-07-23 13:41:53,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:53,769 INFO L93 Difference]: Finished difference Result 362 states and 364 transitions. [2018-07-23 13:41:53,769 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2018-07-23 13:41:53,769 INFO L78 Accepts]: Start accepts. Automaton has 144 states. Word has length 215 [2018-07-23 13:41:53,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:53,769 INFO L225 Difference]: With dead ends: 362 [2018-07-23 13:41:53,769 INFO L226 Difference]: Without dead ends: 217 [2018-07-23 13:41:53,772 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 213 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7385 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=10509, Invalid=35501, Unknown=0, NotChecked=0, Total=46010 [2018-07-23 13:41:53,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2018-07-23 13:41:53,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2018-07-23 13:41:53,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2018-07-23 13:41:53,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 218 transitions. [2018-07-23 13:41:53,793 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 218 transitions. Word has length 215 [2018-07-23 13:41:53,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:53,793 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 218 transitions. [2018-07-23 13:41:53,793 INFO L472 AbstractCegarLoop]: Interpolant automaton has 144 states. [2018-07-23 13:41:53,793 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 218 transitions. [2018-07-23 13:41:53,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2018-07-23 13:41:53,794 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:53,794 INFO L357 BasicCegarLoop]: trace histogram [71, 71, 70, 1, 1, 1, 1] [2018-07-23 13:41:53,794 INFO L414 AbstractCegarLoop]: === Iteration 142 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:53,794 INFO L82 PathProgramCache]: Analyzing trace with hash 241562674, now seen corresponding path program 140 times [2018-07-23 13:41:53,794 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:53,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:54,107 INFO L134 CoverageAnalysis]: Checked inductivity of 7526 backedges. 2556 proven. 4970 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:54,108 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:54,108 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [74] total 74 [2018-07-23 13:41:54,108 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:54,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:54,109 INFO L185 omatonBuilderFactory]: Interpolants [93057#(<= 4 ULTIMATE.start_main_~k~5), 93056#(<= 3 ULTIMATE.start_main_~k~5), 93059#(<= 6 ULTIMATE.start_main_~k~5), 93058#(<= 5 ULTIMATE.start_main_~k~5), 93061#(<= 8 ULTIMATE.start_main_~k~5), 93060#(<= 7 ULTIMATE.start_main_~k~5), 93063#(<= 10 ULTIMATE.start_main_~k~5), 93062#(<= 9 ULTIMATE.start_main_~k~5), 93065#(<= 12 ULTIMATE.start_main_~k~5), 93064#(<= 11 ULTIMATE.start_main_~k~5), 93067#(<= 14 ULTIMATE.start_main_~k~5), 93066#(<= 13 ULTIMATE.start_main_~k~5), 93069#(<= 16 ULTIMATE.start_main_~k~5), 93068#(<= 15 ULTIMATE.start_main_~k~5), 93071#(<= 18 ULTIMATE.start_main_~k~5), 93070#(<= 17 ULTIMATE.start_main_~k~5), 93073#(<= 20 ULTIMATE.start_main_~k~5), 93072#(<= 19 ULTIMATE.start_main_~k~5), 93075#(<= 22 ULTIMATE.start_main_~k~5), 93074#(<= 21 ULTIMATE.start_main_~k~5), 93077#(<= 24 ULTIMATE.start_main_~k~5), 93076#(<= 23 ULTIMATE.start_main_~k~5), 93079#(<= 26 ULTIMATE.start_main_~k~5), 93078#(<= 25 ULTIMATE.start_main_~k~5), 93081#(<= 28 ULTIMATE.start_main_~k~5), 93080#(<= 27 ULTIMATE.start_main_~k~5), 93083#(<= 30 ULTIMATE.start_main_~k~5), 93082#(<= 29 ULTIMATE.start_main_~k~5), 93085#(<= 32 ULTIMATE.start_main_~k~5), 93084#(<= 31 ULTIMATE.start_main_~k~5), 93087#(<= 34 ULTIMATE.start_main_~k~5), 93086#(<= 33 ULTIMATE.start_main_~k~5), 93089#(<= 36 ULTIMATE.start_main_~k~5), 93088#(<= 35 ULTIMATE.start_main_~k~5), 93091#(<= 38 ULTIMATE.start_main_~k~5), 93090#(<= 37 ULTIMATE.start_main_~k~5), 93093#(<= 40 ULTIMATE.start_main_~k~5), 93092#(<= 39 ULTIMATE.start_main_~k~5), 93095#(<= 42 ULTIMATE.start_main_~k~5), 93094#(<= 41 ULTIMATE.start_main_~k~5), 93097#(<= 44 ULTIMATE.start_main_~k~5), 93096#(<= 43 ULTIMATE.start_main_~k~5), 93099#(<= 46 ULTIMATE.start_main_~k~5), 93098#(<= 45 ULTIMATE.start_main_~k~5), 93101#(<= 48 ULTIMATE.start_main_~k~5), 93100#(<= 47 ULTIMATE.start_main_~k~5), 93103#(<= 50 ULTIMATE.start_main_~k~5), 93102#(<= 49 ULTIMATE.start_main_~k~5), 93105#(<= 52 ULTIMATE.start_main_~k~5), 93104#(<= 51 ULTIMATE.start_main_~k~5), 93107#(<= 54 ULTIMATE.start_main_~k~5), 93106#(<= 53 ULTIMATE.start_main_~k~5), 93109#(<= 56 ULTIMATE.start_main_~k~5), 93108#(<= 55 ULTIMATE.start_main_~k~5), 93111#(<= 58 ULTIMATE.start_main_~k~5), 93110#(<= 57 ULTIMATE.start_main_~k~5), 93113#(<= 60 ULTIMATE.start_main_~k~5), 93112#(<= 59 ULTIMATE.start_main_~k~5), 93115#(<= 62 ULTIMATE.start_main_~k~5), 93114#(<= 61 ULTIMATE.start_main_~k~5), 93117#(<= 64 ULTIMATE.start_main_~k~5), 93116#(<= 63 ULTIMATE.start_main_~k~5), 93119#(<= 66 ULTIMATE.start_main_~k~5), 93118#(<= 65 ULTIMATE.start_main_~k~5), 93121#(<= 68 ULTIMATE.start_main_~k~5), 93120#(<= 67 ULTIMATE.start_main_~k~5), 93123#(<= 70 ULTIMATE.start_main_~k~5), 93122#(<= 69 ULTIMATE.start_main_~k~5), 93125#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 93124#(<= 71 ULTIMATE.start_main_~k~5), 93051#true, 93053#(<= 0 ULTIMATE.start_main_~k~5), 93052#false, 93055#(<= 2 ULTIMATE.start_main_~k~5), 93054#(<= 1 ULTIMATE.start_main_~k~5)] [2018-07-23 13:41:54,109 INFO L134 CoverageAnalysis]: Checked inductivity of 7526 backedges. 2556 proven. 4970 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:54,109 INFO L450 AbstractCegarLoop]: Interpolant automaton has 75 states [2018-07-23 13:41:54,110 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2018-07-23 13:41:54,110 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2703, Invalid=2847, Unknown=0, NotChecked=0, Total=5550 [2018-07-23 13:41:54,110 INFO L87 Difference]: Start difference. First operand 217 states and 218 transitions. Second operand 75 states. [2018-07-23 13:41:54,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:54,394 INFO L93 Difference]: Finished difference Result 225 states and 226 transitions. [2018-07-23 13:41:54,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 146 states. [2018-07-23 13:41:54,394 INFO L78 Accepts]: Start accepts. Automaton has 75 states. Word has length 216 [2018-07-23 13:41:54,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:54,394 INFO L225 Difference]: With dead ends: 225 [2018-07-23 13:41:54,394 INFO L226 Difference]: Without dead ends: 223 [2018-07-23 13:41:54,396 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5112 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=8103, Invalid=13359, Unknown=0, NotChecked=0, Total=21462 [2018-07-23 13:41:54,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2018-07-23 13:41:54,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 219. [2018-07-23 13:41:54,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2018-07-23 13:41:54,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 220 transitions. [2018-07-23 13:41:54,421 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 220 transitions. Word has length 216 [2018-07-23 13:41:54,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:54,421 INFO L471 AbstractCegarLoop]: Abstraction has 219 states and 220 transitions. [2018-07-23 13:41:54,421 INFO L472 AbstractCegarLoop]: Interpolant automaton has 75 states. [2018-07-23 13:41:54,421 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 220 transitions. [2018-07-23 13:41:54,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2018-07-23 13:41:54,422 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:54,422 INFO L357 BasicCegarLoop]: trace histogram [72, 71, 71, 1, 1, 1, 1] [2018-07-23 13:41:54,422 INFO L414 AbstractCegarLoop]: === Iteration 143 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:54,422 INFO L82 PathProgramCache]: Analyzing trace with hash 213561754, now seen corresponding path program 141 times [2018-07-23 13:41:54,422 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:54,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:54,946 INFO L134 CoverageAnalysis]: Checked inductivity of 7668 backedges. 5112 proven. 2556 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:54,946 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:54,946 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [145] total 145 [2018-07-23 13:41:54,946 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:54,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:54,947 INFO L185 omatonBuilderFactory]: Interpolants [94209#(<= ULTIMATE.start_main_~i~5 49), 94208#(<= ULTIMATE.start_main_~i~5 48), 94211#(<= ULTIMATE.start_main_~i~5 51), 94210#(<= ULTIMATE.start_main_~i~5 50), 94213#(<= ULTIMATE.start_main_~i~5 53), 94212#(<= ULTIMATE.start_main_~i~5 52), 94215#(<= ULTIMATE.start_main_~i~5 55), 94214#(<= ULTIMATE.start_main_~i~5 54), 94217#(<= ULTIMATE.start_main_~i~5 57), 94216#(<= ULTIMATE.start_main_~i~5 56), 94219#(<= ULTIMATE.start_main_~i~5 59), 94218#(<= ULTIMATE.start_main_~i~5 58), 94221#(<= ULTIMATE.start_main_~i~5 61), 94220#(<= ULTIMATE.start_main_~i~5 60), 94223#(<= ULTIMATE.start_main_~i~5 63), 94222#(<= ULTIMATE.start_main_~i~5 62), 94225#(<= ULTIMATE.start_main_~i~5 65), 94224#(<= ULTIMATE.start_main_~i~5 64), 94227#(<= ULTIMATE.start_main_~i~5 67), 94226#(<= ULTIMATE.start_main_~i~5 66), 94229#(<= ULTIMATE.start_main_~i~5 69), 94228#(<= ULTIMATE.start_main_~i~5 68), 94231#(<= ULTIMATE.start_main_~i~5 71), 94230#(<= ULTIMATE.start_main_~i~5 70), 94233#(<= ULTIMATE.start_main_~j~5 70), 94232#(<= ULTIMATE.start_main_~j~5 71), 94235#(<= ULTIMATE.start_main_~j~5 68), 94234#(<= ULTIMATE.start_main_~j~5 69), 94237#(<= ULTIMATE.start_main_~j~5 66), 94236#(<= ULTIMATE.start_main_~j~5 67), 94239#(<= ULTIMATE.start_main_~j~5 64), 94238#(<= ULTIMATE.start_main_~j~5 65), 94241#(<= ULTIMATE.start_main_~j~5 62), 94240#(<= ULTIMATE.start_main_~j~5 63), 94243#(<= ULTIMATE.start_main_~j~5 60), 94242#(<= ULTIMATE.start_main_~j~5 61), 94245#(<= ULTIMATE.start_main_~j~5 58), 94244#(<= ULTIMATE.start_main_~j~5 59), 94247#(<= ULTIMATE.start_main_~j~5 56), 94246#(<= ULTIMATE.start_main_~j~5 57), 94249#(<= ULTIMATE.start_main_~j~5 54), 94248#(<= ULTIMATE.start_main_~j~5 55), 94251#(<= ULTIMATE.start_main_~j~5 52), 94250#(<= ULTIMATE.start_main_~j~5 53), 94253#(<= ULTIMATE.start_main_~j~5 50), 94252#(<= ULTIMATE.start_main_~j~5 51), 94255#(<= ULTIMATE.start_main_~j~5 48), 94254#(<= ULTIMATE.start_main_~j~5 49), 94257#(<= ULTIMATE.start_main_~j~5 46), 94256#(<= ULTIMATE.start_main_~j~5 47), 94259#(<= ULTIMATE.start_main_~j~5 44), 94258#(<= ULTIMATE.start_main_~j~5 45), 94261#(<= ULTIMATE.start_main_~j~5 42), 94260#(<= ULTIMATE.start_main_~j~5 43), 94263#(<= ULTIMATE.start_main_~j~5 40), 94262#(<= ULTIMATE.start_main_~j~5 41), 94265#(<= ULTIMATE.start_main_~j~5 38), 94264#(<= ULTIMATE.start_main_~j~5 39), 94267#(<= ULTIMATE.start_main_~j~5 36), 94266#(<= ULTIMATE.start_main_~j~5 37), 94269#(<= ULTIMATE.start_main_~j~5 34), 94268#(<= ULTIMATE.start_main_~j~5 35), 94271#(<= ULTIMATE.start_main_~j~5 32), 94270#(<= ULTIMATE.start_main_~j~5 33), 94273#(<= ULTIMATE.start_main_~j~5 30), 94272#(<= ULTIMATE.start_main_~j~5 31), 94275#(<= ULTIMATE.start_main_~j~5 28), 94274#(<= ULTIMATE.start_main_~j~5 29), 94277#(<= ULTIMATE.start_main_~j~5 26), 94276#(<= ULTIMATE.start_main_~j~5 27), 94279#(<= ULTIMATE.start_main_~j~5 24), 94278#(<= ULTIMATE.start_main_~j~5 25), 94281#(<= ULTIMATE.start_main_~j~5 22), 94280#(<= ULTIMATE.start_main_~j~5 23), 94283#(<= ULTIMATE.start_main_~j~5 20), 94282#(<= ULTIMATE.start_main_~j~5 21), 94285#(<= ULTIMATE.start_main_~j~5 18), 94284#(<= ULTIMATE.start_main_~j~5 19), 94287#(<= ULTIMATE.start_main_~j~5 16), 94286#(<= ULTIMATE.start_main_~j~5 17), 94289#(<= ULTIMATE.start_main_~j~5 14), 94288#(<= ULTIMATE.start_main_~j~5 15), 94291#(<= ULTIMATE.start_main_~j~5 12), 94290#(<= ULTIMATE.start_main_~j~5 13), 94293#(<= ULTIMATE.start_main_~j~5 10), 94292#(<= ULTIMATE.start_main_~j~5 11), 94295#(<= ULTIMATE.start_main_~j~5 8), 94294#(<= ULTIMATE.start_main_~j~5 9), 94297#(<= ULTIMATE.start_main_~j~5 6), 94296#(<= ULTIMATE.start_main_~j~5 7), 94299#(<= ULTIMATE.start_main_~j~5 4), 94298#(<= ULTIMATE.start_main_~j~5 5), 94301#(<= ULTIMATE.start_main_~j~5 2), 94300#(<= ULTIMATE.start_main_~j~5 3), 94303#(<= ULTIMATE.start_main_~j~5 0), 94302#(<= ULTIMATE.start_main_~j~5 1), 94159#false, 94158#true, 94161#(<= ULTIMATE.start_main_~i~5 1), 94160#(<= ULTIMATE.start_main_~i~5 0), 94163#(<= ULTIMATE.start_main_~i~5 3), 94162#(<= ULTIMATE.start_main_~i~5 2), 94165#(<= ULTIMATE.start_main_~i~5 5), 94164#(<= ULTIMATE.start_main_~i~5 4), 94167#(<= ULTIMATE.start_main_~i~5 7), 94166#(<= ULTIMATE.start_main_~i~5 6), 94169#(<= ULTIMATE.start_main_~i~5 9), 94168#(<= ULTIMATE.start_main_~i~5 8), 94171#(<= ULTIMATE.start_main_~i~5 11), 94170#(<= ULTIMATE.start_main_~i~5 10), 94173#(<= ULTIMATE.start_main_~i~5 13), 94172#(<= ULTIMATE.start_main_~i~5 12), 94175#(<= ULTIMATE.start_main_~i~5 15), 94174#(<= ULTIMATE.start_main_~i~5 14), 94177#(<= ULTIMATE.start_main_~i~5 17), 94176#(<= ULTIMATE.start_main_~i~5 16), 94179#(<= ULTIMATE.start_main_~i~5 19), 94178#(<= ULTIMATE.start_main_~i~5 18), 94181#(<= ULTIMATE.start_main_~i~5 21), 94180#(<= ULTIMATE.start_main_~i~5 20), 94183#(<= ULTIMATE.start_main_~i~5 23), 94182#(<= ULTIMATE.start_main_~i~5 22), 94185#(<= ULTIMATE.start_main_~i~5 25), 94184#(<= ULTIMATE.start_main_~i~5 24), 94187#(<= ULTIMATE.start_main_~i~5 27), 94186#(<= ULTIMATE.start_main_~i~5 26), 94189#(<= ULTIMATE.start_main_~i~5 29), 94188#(<= ULTIMATE.start_main_~i~5 28), 94191#(<= ULTIMATE.start_main_~i~5 31), 94190#(<= ULTIMATE.start_main_~i~5 30), 94193#(<= ULTIMATE.start_main_~i~5 33), 94192#(<= ULTIMATE.start_main_~i~5 32), 94195#(<= ULTIMATE.start_main_~i~5 35), 94194#(<= ULTIMATE.start_main_~i~5 34), 94197#(<= ULTIMATE.start_main_~i~5 37), 94196#(<= ULTIMATE.start_main_~i~5 36), 94199#(<= ULTIMATE.start_main_~i~5 39), 94198#(<= ULTIMATE.start_main_~i~5 38), 94201#(<= ULTIMATE.start_main_~i~5 41), 94200#(<= ULTIMATE.start_main_~i~5 40), 94203#(<= ULTIMATE.start_main_~i~5 43), 94202#(<= ULTIMATE.start_main_~i~5 42), 94205#(<= ULTIMATE.start_main_~i~5 45), 94204#(<= ULTIMATE.start_main_~i~5 44), 94207#(<= ULTIMATE.start_main_~i~5 47), 94206#(<= ULTIMATE.start_main_~i~5 46)] [2018-07-23 13:41:54,948 INFO L134 CoverageAnalysis]: Checked inductivity of 7668 backedges. 5112 proven. 2556 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:54,948 INFO L450 AbstractCegarLoop]: Interpolant automaton has 146 states [2018-07-23 13:41:54,949 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 146 interpolants. [2018-07-23 13:41:54,949 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5401, Invalid=15769, Unknown=0, NotChecked=0, Total=21170 [2018-07-23 13:41:54,950 INFO L87 Difference]: Start difference. First operand 219 states and 220 transitions. Second operand 146 states. [2018-07-23 13:41:55,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:55,600 INFO L93 Difference]: Finished difference Result 367 states and 369 transitions. [2018-07-23 13:41:55,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 146 states. [2018-07-23 13:41:55,600 INFO L78 Accepts]: Start accepts. Automaton has 146 states. Word has length 218 [2018-07-23 13:41:55,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:55,601 INFO L225 Difference]: With dead ends: 367 [2018-07-23 13:41:55,601 INFO L226 Difference]: Without dead ends: 220 [2018-07-23 13:41:55,605 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 216 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7597 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=10801, Invalid=36505, Unknown=0, NotChecked=0, Total=47306 [2018-07-23 13:41:55,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2018-07-23 13:41:55,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2018-07-23 13:41:55,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2018-07-23 13:41:55,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 221 transitions. [2018-07-23 13:41:55,633 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 221 transitions. Word has length 218 [2018-07-23 13:41:55,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:55,633 INFO L471 AbstractCegarLoop]: Abstraction has 220 states and 221 transitions. [2018-07-23 13:41:55,633 INFO L472 AbstractCegarLoop]: Interpolant automaton has 146 states. [2018-07-23 13:41:55,634 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 221 transitions. [2018-07-23 13:41:55,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2018-07-23 13:41:55,634 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:55,634 INFO L357 BasicCegarLoop]: trace histogram [72, 72, 71, 1, 1, 1, 1] [2018-07-23 13:41:55,634 INFO L414 AbstractCegarLoop]: === Iteration 144 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:55,634 INFO L82 PathProgramCache]: Analyzing trace with hash 1074687955, now seen corresponding path program 142 times [2018-07-23 13:41:55,635 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:55,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:55,916 INFO L134 CoverageAnalysis]: Checked inductivity of 7740 backedges. 2628 proven. 5112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:55,917 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:55,917 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [75] total 75 [2018-07-23 13:41:55,917 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:55,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:55,918 INFO L185 omatonBuilderFactory]: Interpolants [95623#false, 95622#true, 95625#(<= 1 ULTIMATE.start_main_~k~5), 95624#(<= 0 ULTIMATE.start_main_~k~5), 95627#(<= 3 ULTIMATE.start_main_~k~5), 95626#(<= 2 ULTIMATE.start_main_~k~5), 95629#(<= 5 ULTIMATE.start_main_~k~5), 95628#(<= 4 ULTIMATE.start_main_~k~5), 95631#(<= 7 ULTIMATE.start_main_~k~5), 95630#(<= 6 ULTIMATE.start_main_~k~5), 95633#(<= 9 ULTIMATE.start_main_~k~5), 95632#(<= 8 ULTIMATE.start_main_~k~5), 95635#(<= 11 ULTIMATE.start_main_~k~5), 95634#(<= 10 ULTIMATE.start_main_~k~5), 95637#(<= 13 ULTIMATE.start_main_~k~5), 95636#(<= 12 ULTIMATE.start_main_~k~5), 95639#(<= 15 ULTIMATE.start_main_~k~5), 95638#(<= 14 ULTIMATE.start_main_~k~5), 95641#(<= 17 ULTIMATE.start_main_~k~5), 95640#(<= 16 ULTIMATE.start_main_~k~5), 95643#(<= 19 ULTIMATE.start_main_~k~5), 95642#(<= 18 ULTIMATE.start_main_~k~5), 95645#(<= 21 ULTIMATE.start_main_~k~5), 95644#(<= 20 ULTIMATE.start_main_~k~5), 95647#(<= 23 ULTIMATE.start_main_~k~5), 95646#(<= 22 ULTIMATE.start_main_~k~5), 95649#(<= 25 ULTIMATE.start_main_~k~5), 95648#(<= 24 ULTIMATE.start_main_~k~5), 95651#(<= 27 ULTIMATE.start_main_~k~5), 95650#(<= 26 ULTIMATE.start_main_~k~5), 95653#(<= 29 ULTIMATE.start_main_~k~5), 95652#(<= 28 ULTIMATE.start_main_~k~5), 95655#(<= 31 ULTIMATE.start_main_~k~5), 95654#(<= 30 ULTIMATE.start_main_~k~5), 95657#(<= 33 ULTIMATE.start_main_~k~5), 95656#(<= 32 ULTIMATE.start_main_~k~5), 95659#(<= 35 ULTIMATE.start_main_~k~5), 95658#(<= 34 ULTIMATE.start_main_~k~5), 95661#(<= 37 ULTIMATE.start_main_~k~5), 95660#(<= 36 ULTIMATE.start_main_~k~5), 95663#(<= 39 ULTIMATE.start_main_~k~5), 95662#(<= 38 ULTIMATE.start_main_~k~5), 95665#(<= 41 ULTIMATE.start_main_~k~5), 95664#(<= 40 ULTIMATE.start_main_~k~5), 95667#(<= 43 ULTIMATE.start_main_~k~5), 95666#(<= 42 ULTIMATE.start_main_~k~5), 95669#(<= 45 ULTIMATE.start_main_~k~5), 95668#(<= 44 ULTIMATE.start_main_~k~5), 95671#(<= 47 ULTIMATE.start_main_~k~5), 95670#(<= 46 ULTIMATE.start_main_~k~5), 95673#(<= 49 ULTIMATE.start_main_~k~5), 95672#(<= 48 ULTIMATE.start_main_~k~5), 95675#(<= 51 ULTIMATE.start_main_~k~5), 95674#(<= 50 ULTIMATE.start_main_~k~5), 95677#(<= 53 ULTIMATE.start_main_~k~5), 95676#(<= 52 ULTIMATE.start_main_~k~5), 95679#(<= 55 ULTIMATE.start_main_~k~5), 95678#(<= 54 ULTIMATE.start_main_~k~5), 95681#(<= 57 ULTIMATE.start_main_~k~5), 95680#(<= 56 ULTIMATE.start_main_~k~5), 95683#(<= 59 ULTIMATE.start_main_~k~5), 95682#(<= 58 ULTIMATE.start_main_~k~5), 95685#(<= 61 ULTIMATE.start_main_~k~5), 95684#(<= 60 ULTIMATE.start_main_~k~5), 95687#(<= 63 ULTIMATE.start_main_~k~5), 95686#(<= 62 ULTIMATE.start_main_~k~5), 95689#(<= 65 ULTIMATE.start_main_~k~5), 95688#(<= 64 ULTIMATE.start_main_~k~5), 95691#(<= 67 ULTIMATE.start_main_~k~5), 95690#(<= 66 ULTIMATE.start_main_~k~5), 95693#(<= 69 ULTIMATE.start_main_~k~5), 95692#(<= 68 ULTIMATE.start_main_~k~5), 95695#(<= 71 ULTIMATE.start_main_~k~5), 95694#(<= 70 ULTIMATE.start_main_~k~5), 95697#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 95696#(<= 72 ULTIMATE.start_main_~k~5)] [2018-07-23 13:41:55,918 INFO L134 CoverageAnalysis]: Checked inductivity of 7740 backedges. 2628 proven. 5112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:55,918 INFO L450 AbstractCegarLoop]: Interpolant automaton has 76 states [2018-07-23 13:41:55,919 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2018-07-23 13:41:55,919 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2777, Invalid=2923, Unknown=0, NotChecked=0, Total=5700 [2018-07-23 13:41:55,919 INFO L87 Difference]: Start difference. First operand 220 states and 221 transitions. Second operand 76 states. [2018-07-23 13:41:56,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:56,165 INFO L93 Difference]: Finished difference Result 228 states and 229 transitions. [2018-07-23 13:41:56,165 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 148 states. [2018-07-23 13:41:56,165 INFO L78 Accepts]: Start accepts. Automaton has 76 states. Word has length 219 [2018-07-23 13:41:56,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:56,166 INFO L225 Difference]: With dead ends: 228 [2018-07-23 13:41:56,166 INFO L226 Difference]: Without dead ends: 226 [2018-07-23 13:41:56,167 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5256 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=8325, Invalid=13727, Unknown=0, NotChecked=0, Total=22052 [2018-07-23 13:41:56,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2018-07-23 13:41:56,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 222. [2018-07-23 13:41:56,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2018-07-23 13:41:56,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 223 transitions. [2018-07-23 13:41:56,189 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 223 transitions. Word has length 219 [2018-07-23 13:41:56,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:56,189 INFO L471 AbstractCegarLoop]: Abstraction has 222 states and 223 transitions. [2018-07-23 13:41:56,189 INFO L472 AbstractCegarLoop]: Interpolant automaton has 76 states. [2018-07-23 13:41:56,189 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 223 transitions. [2018-07-23 13:41:56,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2018-07-23 13:41:56,189 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:56,190 INFO L357 BasicCegarLoop]: trace histogram [73, 72, 72, 1, 1, 1, 1] [2018-07-23 13:41:56,190 INFO L414 AbstractCegarLoop]: === Iteration 145 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:56,190 INFO L82 PathProgramCache]: Analyzing trace with hash 1983039739, now seen corresponding path program 143 times [2018-07-23 13:41:56,190 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:56,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:56,658 INFO L134 CoverageAnalysis]: Checked inductivity of 7884 backedges. 5256 proven. 2628 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:56,659 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:56,659 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [147] total 147 [2018-07-23 13:41:56,659 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:56,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:56,660 INFO L185 omatonBuilderFactory]: Interpolants [96769#(<= ULTIMATE.start_main_~i~5 23), 96768#(<= ULTIMATE.start_main_~i~5 22), 96771#(<= ULTIMATE.start_main_~i~5 25), 96770#(<= ULTIMATE.start_main_~i~5 24), 96773#(<= ULTIMATE.start_main_~i~5 27), 96772#(<= ULTIMATE.start_main_~i~5 26), 96775#(<= ULTIMATE.start_main_~i~5 29), 96774#(<= ULTIMATE.start_main_~i~5 28), 96777#(<= ULTIMATE.start_main_~i~5 31), 96776#(<= ULTIMATE.start_main_~i~5 30), 96779#(<= ULTIMATE.start_main_~i~5 33), 96778#(<= ULTIMATE.start_main_~i~5 32), 96781#(<= ULTIMATE.start_main_~i~5 35), 96780#(<= ULTIMATE.start_main_~i~5 34), 96783#(<= ULTIMATE.start_main_~i~5 37), 96782#(<= ULTIMATE.start_main_~i~5 36), 96785#(<= ULTIMATE.start_main_~i~5 39), 96784#(<= ULTIMATE.start_main_~i~5 38), 96787#(<= ULTIMATE.start_main_~i~5 41), 96786#(<= ULTIMATE.start_main_~i~5 40), 96789#(<= ULTIMATE.start_main_~i~5 43), 96788#(<= ULTIMATE.start_main_~i~5 42), 96791#(<= ULTIMATE.start_main_~i~5 45), 96790#(<= ULTIMATE.start_main_~i~5 44), 96793#(<= ULTIMATE.start_main_~i~5 47), 96792#(<= ULTIMATE.start_main_~i~5 46), 96795#(<= ULTIMATE.start_main_~i~5 49), 96794#(<= ULTIMATE.start_main_~i~5 48), 96797#(<= ULTIMATE.start_main_~i~5 51), 96796#(<= ULTIMATE.start_main_~i~5 50), 96799#(<= ULTIMATE.start_main_~i~5 53), 96798#(<= ULTIMATE.start_main_~i~5 52), 96801#(<= ULTIMATE.start_main_~i~5 55), 96800#(<= ULTIMATE.start_main_~i~5 54), 96803#(<= ULTIMATE.start_main_~i~5 57), 96802#(<= ULTIMATE.start_main_~i~5 56), 96805#(<= ULTIMATE.start_main_~i~5 59), 96804#(<= ULTIMATE.start_main_~i~5 58), 96807#(<= ULTIMATE.start_main_~i~5 61), 96806#(<= ULTIMATE.start_main_~i~5 60), 96809#(<= ULTIMATE.start_main_~i~5 63), 96808#(<= ULTIMATE.start_main_~i~5 62), 96811#(<= ULTIMATE.start_main_~i~5 65), 96810#(<= ULTIMATE.start_main_~i~5 64), 96813#(<= ULTIMATE.start_main_~i~5 67), 96812#(<= ULTIMATE.start_main_~i~5 66), 96815#(<= ULTIMATE.start_main_~i~5 69), 96814#(<= ULTIMATE.start_main_~i~5 68), 96817#(<= ULTIMATE.start_main_~i~5 71), 96816#(<= ULTIMATE.start_main_~i~5 70), 96819#(<= ULTIMATE.start_main_~j~5 72), 96818#(<= ULTIMATE.start_main_~i~5 72), 96821#(<= ULTIMATE.start_main_~j~5 70), 96820#(<= ULTIMATE.start_main_~j~5 71), 96823#(<= ULTIMATE.start_main_~j~5 68), 96822#(<= ULTIMATE.start_main_~j~5 69), 96825#(<= ULTIMATE.start_main_~j~5 66), 96824#(<= ULTIMATE.start_main_~j~5 67), 96827#(<= ULTIMATE.start_main_~j~5 64), 96826#(<= ULTIMATE.start_main_~j~5 65), 96829#(<= ULTIMATE.start_main_~j~5 62), 96828#(<= ULTIMATE.start_main_~j~5 63), 96831#(<= ULTIMATE.start_main_~j~5 60), 96830#(<= ULTIMATE.start_main_~j~5 61), 96833#(<= ULTIMATE.start_main_~j~5 58), 96832#(<= ULTIMATE.start_main_~j~5 59), 96835#(<= ULTIMATE.start_main_~j~5 56), 96834#(<= ULTIMATE.start_main_~j~5 57), 96837#(<= ULTIMATE.start_main_~j~5 54), 96836#(<= ULTIMATE.start_main_~j~5 55), 96839#(<= ULTIMATE.start_main_~j~5 52), 96838#(<= ULTIMATE.start_main_~j~5 53), 96841#(<= ULTIMATE.start_main_~j~5 50), 96840#(<= ULTIMATE.start_main_~j~5 51), 96843#(<= ULTIMATE.start_main_~j~5 48), 96842#(<= ULTIMATE.start_main_~j~5 49), 96845#(<= ULTIMATE.start_main_~j~5 46), 96844#(<= ULTIMATE.start_main_~j~5 47), 96847#(<= ULTIMATE.start_main_~j~5 44), 96846#(<= ULTIMATE.start_main_~j~5 45), 96849#(<= ULTIMATE.start_main_~j~5 42), 96848#(<= ULTIMATE.start_main_~j~5 43), 96851#(<= ULTIMATE.start_main_~j~5 40), 96850#(<= ULTIMATE.start_main_~j~5 41), 96853#(<= ULTIMATE.start_main_~j~5 38), 96852#(<= ULTIMATE.start_main_~j~5 39), 96855#(<= ULTIMATE.start_main_~j~5 36), 96854#(<= ULTIMATE.start_main_~j~5 37), 96857#(<= ULTIMATE.start_main_~j~5 34), 96856#(<= ULTIMATE.start_main_~j~5 35), 96859#(<= ULTIMATE.start_main_~j~5 32), 96858#(<= ULTIMATE.start_main_~j~5 33), 96861#(<= ULTIMATE.start_main_~j~5 30), 96860#(<= ULTIMATE.start_main_~j~5 31), 96863#(<= ULTIMATE.start_main_~j~5 28), 96862#(<= ULTIMATE.start_main_~j~5 29), 96865#(<= ULTIMATE.start_main_~j~5 26), 96864#(<= ULTIMATE.start_main_~j~5 27), 96867#(<= ULTIMATE.start_main_~j~5 24), 96866#(<= ULTIMATE.start_main_~j~5 25), 96869#(<= ULTIMATE.start_main_~j~5 22), 96868#(<= ULTIMATE.start_main_~j~5 23), 96871#(<= ULTIMATE.start_main_~j~5 20), 96870#(<= ULTIMATE.start_main_~j~5 21), 96873#(<= ULTIMATE.start_main_~j~5 18), 96872#(<= ULTIMATE.start_main_~j~5 19), 96875#(<= ULTIMATE.start_main_~j~5 16), 96874#(<= ULTIMATE.start_main_~j~5 17), 96877#(<= ULTIMATE.start_main_~j~5 14), 96876#(<= ULTIMATE.start_main_~j~5 15), 96879#(<= ULTIMATE.start_main_~j~5 12), 96878#(<= ULTIMATE.start_main_~j~5 13), 96881#(<= ULTIMATE.start_main_~j~5 10), 96880#(<= ULTIMATE.start_main_~j~5 11), 96883#(<= ULTIMATE.start_main_~j~5 8), 96882#(<= ULTIMATE.start_main_~j~5 9), 96885#(<= ULTIMATE.start_main_~j~5 6), 96884#(<= ULTIMATE.start_main_~j~5 7), 96887#(<= ULTIMATE.start_main_~j~5 4), 96886#(<= ULTIMATE.start_main_~j~5 5), 96889#(<= ULTIMATE.start_main_~j~5 2), 96888#(<= ULTIMATE.start_main_~j~5 3), 96891#(<= ULTIMATE.start_main_~j~5 0), 96890#(<= ULTIMATE.start_main_~j~5 1), 96745#false, 96744#true, 96747#(<= ULTIMATE.start_main_~i~5 1), 96746#(<= ULTIMATE.start_main_~i~5 0), 96749#(<= ULTIMATE.start_main_~i~5 3), 96748#(<= ULTIMATE.start_main_~i~5 2), 96751#(<= ULTIMATE.start_main_~i~5 5), 96750#(<= ULTIMATE.start_main_~i~5 4), 96753#(<= ULTIMATE.start_main_~i~5 7), 96752#(<= ULTIMATE.start_main_~i~5 6), 96755#(<= ULTIMATE.start_main_~i~5 9), 96754#(<= ULTIMATE.start_main_~i~5 8), 96757#(<= ULTIMATE.start_main_~i~5 11), 96756#(<= ULTIMATE.start_main_~i~5 10), 96759#(<= ULTIMATE.start_main_~i~5 13), 96758#(<= ULTIMATE.start_main_~i~5 12), 96761#(<= ULTIMATE.start_main_~i~5 15), 96760#(<= ULTIMATE.start_main_~i~5 14), 96763#(<= ULTIMATE.start_main_~i~5 17), 96762#(<= ULTIMATE.start_main_~i~5 16), 96765#(<= ULTIMATE.start_main_~i~5 19), 96764#(<= ULTIMATE.start_main_~i~5 18), 96767#(<= ULTIMATE.start_main_~i~5 21), 96766#(<= ULTIMATE.start_main_~i~5 20)] [2018-07-23 13:41:56,660 INFO L134 CoverageAnalysis]: Checked inductivity of 7884 backedges. 5256 proven. 2628 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:56,661 INFO L450 AbstractCegarLoop]: Interpolant automaton has 148 states [2018-07-23 13:41:56,662 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 148 interpolants. [2018-07-23 13:41:56,663 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5549, Invalid=16207, Unknown=0, NotChecked=0, Total=21756 [2018-07-23 13:41:56,664 INFO L87 Difference]: Start difference. First operand 222 states and 223 transitions. Second operand 148 states. [2018-07-23 13:41:57,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:57,566 INFO L93 Difference]: Finished difference Result 372 states and 374 transitions. [2018-07-23 13:41:57,566 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 148 states. [2018-07-23 13:41:57,566 INFO L78 Accepts]: Start accepts. Automaton has 148 states. Word has length 221 [2018-07-23 13:41:57,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:57,567 INFO L225 Difference]: With dead ends: 372 [2018-07-23 13:41:57,567 INFO L226 Difference]: Without dead ends: 223 [2018-07-23 13:41:57,570 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 219 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7812 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=11097, Invalid=37523, Unknown=0, NotChecked=0, Total=48620 [2018-07-23 13:41:57,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2018-07-23 13:41:57,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 223. [2018-07-23 13:41:57,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2018-07-23 13:41:57,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 224 transitions. [2018-07-23 13:41:57,592 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 224 transitions. Word has length 221 [2018-07-23 13:41:57,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:57,592 INFO L471 AbstractCegarLoop]: Abstraction has 223 states and 224 transitions. [2018-07-23 13:41:57,593 INFO L472 AbstractCegarLoop]: Interpolant automaton has 148 states. [2018-07-23 13:41:57,593 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 224 transitions. [2018-07-23 13:41:57,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2018-07-23 13:41:57,593 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:57,594 INFO L357 BasicCegarLoop]: trace histogram [73, 73, 72, 1, 1, 1, 1] [2018-07-23 13:41:57,594 INFO L414 AbstractCegarLoop]: === Iteration 146 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:57,594 INFO L82 PathProgramCache]: Analyzing trace with hash 1954034722, now seen corresponding path program 144 times [2018-07-23 13:41:57,594 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:57,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:57,867 INFO L134 CoverageAnalysis]: Checked inductivity of 7957 backedges. 2701 proven. 5256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:57,867 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:57,867 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [76] total 76 [2018-07-23 13:41:57,867 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:57,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:57,868 INFO L185 omatonBuilderFactory]: Interpolants [98304#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 98229#false, 98228#true, 98231#(<= 1 ULTIMATE.start_main_~k~5), 98230#(<= 0 ULTIMATE.start_main_~k~5), 98233#(<= 3 ULTIMATE.start_main_~k~5), 98232#(<= 2 ULTIMATE.start_main_~k~5), 98235#(<= 5 ULTIMATE.start_main_~k~5), 98234#(<= 4 ULTIMATE.start_main_~k~5), 98237#(<= 7 ULTIMATE.start_main_~k~5), 98236#(<= 6 ULTIMATE.start_main_~k~5), 98239#(<= 9 ULTIMATE.start_main_~k~5), 98238#(<= 8 ULTIMATE.start_main_~k~5), 98241#(<= 11 ULTIMATE.start_main_~k~5), 98240#(<= 10 ULTIMATE.start_main_~k~5), 98243#(<= 13 ULTIMATE.start_main_~k~5), 98242#(<= 12 ULTIMATE.start_main_~k~5), 98245#(<= 15 ULTIMATE.start_main_~k~5), 98244#(<= 14 ULTIMATE.start_main_~k~5), 98247#(<= 17 ULTIMATE.start_main_~k~5), 98246#(<= 16 ULTIMATE.start_main_~k~5), 98249#(<= 19 ULTIMATE.start_main_~k~5), 98248#(<= 18 ULTIMATE.start_main_~k~5), 98251#(<= 21 ULTIMATE.start_main_~k~5), 98250#(<= 20 ULTIMATE.start_main_~k~5), 98253#(<= 23 ULTIMATE.start_main_~k~5), 98252#(<= 22 ULTIMATE.start_main_~k~5), 98255#(<= 25 ULTIMATE.start_main_~k~5), 98254#(<= 24 ULTIMATE.start_main_~k~5), 98257#(<= 27 ULTIMATE.start_main_~k~5), 98256#(<= 26 ULTIMATE.start_main_~k~5), 98259#(<= 29 ULTIMATE.start_main_~k~5), 98258#(<= 28 ULTIMATE.start_main_~k~5), 98261#(<= 31 ULTIMATE.start_main_~k~5), 98260#(<= 30 ULTIMATE.start_main_~k~5), 98263#(<= 33 ULTIMATE.start_main_~k~5), 98262#(<= 32 ULTIMATE.start_main_~k~5), 98265#(<= 35 ULTIMATE.start_main_~k~5), 98264#(<= 34 ULTIMATE.start_main_~k~5), 98267#(<= 37 ULTIMATE.start_main_~k~5), 98266#(<= 36 ULTIMATE.start_main_~k~5), 98269#(<= 39 ULTIMATE.start_main_~k~5), 98268#(<= 38 ULTIMATE.start_main_~k~5), 98271#(<= 41 ULTIMATE.start_main_~k~5), 98270#(<= 40 ULTIMATE.start_main_~k~5), 98273#(<= 43 ULTIMATE.start_main_~k~5), 98272#(<= 42 ULTIMATE.start_main_~k~5), 98275#(<= 45 ULTIMATE.start_main_~k~5), 98274#(<= 44 ULTIMATE.start_main_~k~5), 98277#(<= 47 ULTIMATE.start_main_~k~5), 98276#(<= 46 ULTIMATE.start_main_~k~5), 98279#(<= 49 ULTIMATE.start_main_~k~5), 98278#(<= 48 ULTIMATE.start_main_~k~5), 98281#(<= 51 ULTIMATE.start_main_~k~5), 98280#(<= 50 ULTIMATE.start_main_~k~5), 98283#(<= 53 ULTIMATE.start_main_~k~5), 98282#(<= 52 ULTIMATE.start_main_~k~5), 98285#(<= 55 ULTIMATE.start_main_~k~5), 98284#(<= 54 ULTIMATE.start_main_~k~5), 98287#(<= 57 ULTIMATE.start_main_~k~5), 98286#(<= 56 ULTIMATE.start_main_~k~5), 98289#(<= 59 ULTIMATE.start_main_~k~5), 98288#(<= 58 ULTIMATE.start_main_~k~5), 98291#(<= 61 ULTIMATE.start_main_~k~5), 98290#(<= 60 ULTIMATE.start_main_~k~5), 98293#(<= 63 ULTIMATE.start_main_~k~5), 98292#(<= 62 ULTIMATE.start_main_~k~5), 98295#(<= 65 ULTIMATE.start_main_~k~5), 98294#(<= 64 ULTIMATE.start_main_~k~5), 98297#(<= 67 ULTIMATE.start_main_~k~5), 98296#(<= 66 ULTIMATE.start_main_~k~5), 98299#(<= 69 ULTIMATE.start_main_~k~5), 98298#(<= 68 ULTIMATE.start_main_~k~5), 98301#(<= 71 ULTIMATE.start_main_~k~5), 98300#(<= 70 ULTIMATE.start_main_~k~5), 98303#(<= 73 ULTIMATE.start_main_~k~5), 98302#(<= 72 ULTIMATE.start_main_~k~5)] [2018-07-23 13:41:57,868 INFO L134 CoverageAnalysis]: Checked inductivity of 7957 backedges. 2701 proven. 5256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:57,868 INFO L450 AbstractCegarLoop]: Interpolant automaton has 77 states [2018-07-23 13:41:57,869 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2018-07-23 13:41:57,869 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2852, Invalid=3000, Unknown=0, NotChecked=0, Total=5852 [2018-07-23 13:41:57,869 INFO L87 Difference]: Start difference. First operand 223 states and 224 transitions. Second operand 77 states. [2018-07-23 13:41:58,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:58,155 INFO L93 Difference]: Finished difference Result 231 states and 232 transitions. [2018-07-23 13:41:58,155 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 150 states. [2018-07-23 13:41:58,155 INFO L78 Accepts]: Start accepts. Automaton has 77 states. Word has length 222 [2018-07-23 13:41:58,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:58,156 INFO L225 Difference]: With dead ends: 231 [2018-07-23 13:41:58,156 INFO L226 Difference]: Without dead ends: 229 [2018-07-23 13:41:58,158 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5402 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=8550, Invalid=14100, Unknown=0, NotChecked=0, Total=22650 [2018-07-23 13:41:58,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2018-07-23 13:41:58,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 225. [2018-07-23 13:41:58,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2018-07-23 13:41:58,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 226 transitions. [2018-07-23 13:41:58,181 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 226 transitions. Word has length 222 [2018-07-23 13:41:58,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:58,181 INFO L471 AbstractCegarLoop]: Abstraction has 225 states and 226 transitions. [2018-07-23 13:41:58,181 INFO L472 AbstractCegarLoop]: Interpolant automaton has 77 states. [2018-07-23 13:41:58,181 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 226 transitions. [2018-07-23 13:41:58,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2018-07-23 13:41:58,182 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:58,182 INFO L357 BasicCegarLoop]: trace histogram [74, 73, 73, 1, 1, 1, 1] [2018-07-23 13:41:58,182 INFO L414 AbstractCegarLoop]: === Iteration 147 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:58,182 INFO L82 PathProgramCache]: Analyzing trace with hash 926725514, now seen corresponding path program 145 times [2018-07-23 13:41:58,182 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:58,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:58,724 INFO L134 CoverageAnalysis]: Checked inductivity of 8103 backedges. 5402 proven. 2701 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:58,725 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:58,725 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [149] total 149 [2018-07-23 13:41:58,725 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:58,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:58,725 INFO L185 omatonBuilderFactory]: Interpolants [99365#true, 99367#(<= ULTIMATE.start_main_~i~5 0), 99366#false, 99369#(<= ULTIMATE.start_main_~i~5 2), 99368#(<= ULTIMATE.start_main_~i~5 1), 99371#(<= ULTIMATE.start_main_~i~5 4), 99370#(<= ULTIMATE.start_main_~i~5 3), 99373#(<= ULTIMATE.start_main_~i~5 6), 99372#(<= ULTIMATE.start_main_~i~5 5), 99375#(<= ULTIMATE.start_main_~i~5 8), 99374#(<= ULTIMATE.start_main_~i~5 7), 99377#(<= ULTIMATE.start_main_~i~5 10), 99376#(<= ULTIMATE.start_main_~i~5 9), 99379#(<= ULTIMATE.start_main_~i~5 12), 99378#(<= ULTIMATE.start_main_~i~5 11), 99381#(<= ULTIMATE.start_main_~i~5 14), 99380#(<= ULTIMATE.start_main_~i~5 13), 99383#(<= ULTIMATE.start_main_~i~5 16), 99382#(<= ULTIMATE.start_main_~i~5 15), 99385#(<= ULTIMATE.start_main_~i~5 18), 99384#(<= ULTIMATE.start_main_~i~5 17), 99387#(<= ULTIMATE.start_main_~i~5 20), 99386#(<= ULTIMATE.start_main_~i~5 19), 99389#(<= ULTIMATE.start_main_~i~5 22), 99388#(<= ULTIMATE.start_main_~i~5 21), 99391#(<= ULTIMATE.start_main_~i~5 24), 99390#(<= ULTIMATE.start_main_~i~5 23), 99393#(<= ULTIMATE.start_main_~i~5 26), 99392#(<= ULTIMATE.start_main_~i~5 25), 99395#(<= ULTIMATE.start_main_~i~5 28), 99394#(<= ULTIMATE.start_main_~i~5 27), 99397#(<= ULTIMATE.start_main_~i~5 30), 99396#(<= ULTIMATE.start_main_~i~5 29), 99399#(<= ULTIMATE.start_main_~i~5 32), 99398#(<= ULTIMATE.start_main_~i~5 31), 99401#(<= ULTIMATE.start_main_~i~5 34), 99400#(<= ULTIMATE.start_main_~i~5 33), 99403#(<= ULTIMATE.start_main_~i~5 36), 99402#(<= ULTIMATE.start_main_~i~5 35), 99405#(<= ULTIMATE.start_main_~i~5 38), 99404#(<= ULTIMATE.start_main_~i~5 37), 99407#(<= ULTIMATE.start_main_~i~5 40), 99406#(<= ULTIMATE.start_main_~i~5 39), 99409#(<= ULTIMATE.start_main_~i~5 42), 99408#(<= ULTIMATE.start_main_~i~5 41), 99411#(<= ULTIMATE.start_main_~i~5 44), 99410#(<= ULTIMATE.start_main_~i~5 43), 99413#(<= ULTIMATE.start_main_~i~5 46), 99412#(<= ULTIMATE.start_main_~i~5 45), 99415#(<= ULTIMATE.start_main_~i~5 48), 99414#(<= ULTIMATE.start_main_~i~5 47), 99417#(<= ULTIMATE.start_main_~i~5 50), 99416#(<= ULTIMATE.start_main_~i~5 49), 99419#(<= ULTIMATE.start_main_~i~5 52), 99418#(<= ULTIMATE.start_main_~i~5 51), 99421#(<= ULTIMATE.start_main_~i~5 54), 99420#(<= ULTIMATE.start_main_~i~5 53), 99423#(<= ULTIMATE.start_main_~i~5 56), 99422#(<= ULTIMATE.start_main_~i~5 55), 99425#(<= ULTIMATE.start_main_~i~5 58), 99424#(<= ULTIMATE.start_main_~i~5 57), 99427#(<= ULTIMATE.start_main_~i~5 60), 99426#(<= ULTIMATE.start_main_~i~5 59), 99429#(<= ULTIMATE.start_main_~i~5 62), 99428#(<= ULTIMATE.start_main_~i~5 61), 99431#(<= ULTIMATE.start_main_~i~5 64), 99430#(<= ULTIMATE.start_main_~i~5 63), 99433#(<= ULTIMATE.start_main_~i~5 66), 99432#(<= ULTIMATE.start_main_~i~5 65), 99435#(<= ULTIMATE.start_main_~i~5 68), 99434#(<= ULTIMATE.start_main_~i~5 67), 99437#(<= ULTIMATE.start_main_~i~5 70), 99436#(<= ULTIMATE.start_main_~i~5 69), 99439#(<= ULTIMATE.start_main_~i~5 72), 99438#(<= ULTIMATE.start_main_~i~5 71), 99441#(<= ULTIMATE.start_main_~j~5 73), 99440#(<= ULTIMATE.start_main_~i~5 73), 99443#(<= ULTIMATE.start_main_~j~5 71), 99442#(<= ULTIMATE.start_main_~j~5 72), 99445#(<= ULTIMATE.start_main_~j~5 69), 99444#(<= ULTIMATE.start_main_~j~5 70), 99447#(<= ULTIMATE.start_main_~j~5 67), 99446#(<= ULTIMATE.start_main_~j~5 68), 99449#(<= ULTIMATE.start_main_~j~5 65), 99448#(<= ULTIMATE.start_main_~j~5 66), 99451#(<= ULTIMATE.start_main_~j~5 63), 99450#(<= ULTIMATE.start_main_~j~5 64), 99453#(<= ULTIMATE.start_main_~j~5 61), 99452#(<= ULTIMATE.start_main_~j~5 62), 99455#(<= ULTIMATE.start_main_~j~5 59), 99454#(<= ULTIMATE.start_main_~j~5 60), 99457#(<= ULTIMATE.start_main_~j~5 57), 99456#(<= ULTIMATE.start_main_~j~5 58), 99459#(<= ULTIMATE.start_main_~j~5 55), 99458#(<= ULTIMATE.start_main_~j~5 56), 99461#(<= ULTIMATE.start_main_~j~5 53), 99460#(<= ULTIMATE.start_main_~j~5 54), 99463#(<= ULTIMATE.start_main_~j~5 51), 99462#(<= ULTIMATE.start_main_~j~5 52), 99465#(<= ULTIMATE.start_main_~j~5 49), 99464#(<= ULTIMATE.start_main_~j~5 50), 99467#(<= ULTIMATE.start_main_~j~5 47), 99466#(<= ULTIMATE.start_main_~j~5 48), 99469#(<= ULTIMATE.start_main_~j~5 45), 99468#(<= ULTIMATE.start_main_~j~5 46), 99471#(<= ULTIMATE.start_main_~j~5 43), 99470#(<= ULTIMATE.start_main_~j~5 44), 99473#(<= ULTIMATE.start_main_~j~5 41), 99472#(<= ULTIMATE.start_main_~j~5 42), 99475#(<= ULTIMATE.start_main_~j~5 39), 99474#(<= ULTIMATE.start_main_~j~5 40), 99477#(<= ULTIMATE.start_main_~j~5 37), 99476#(<= ULTIMATE.start_main_~j~5 38), 99479#(<= ULTIMATE.start_main_~j~5 35), 99478#(<= ULTIMATE.start_main_~j~5 36), 99481#(<= ULTIMATE.start_main_~j~5 33), 99480#(<= ULTIMATE.start_main_~j~5 34), 99483#(<= ULTIMATE.start_main_~j~5 31), 99482#(<= ULTIMATE.start_main_~j~5 32), 99485#(<= ULTIMATE.start_main_~j~5 29), 99484#(<= ULTIMATE.start_main_~j~5 30), 99487#(<= ULTIMATE.start_main_~j~5 27), 99486#(<= ULTIMATE.start_main_~j~5 28), 99489#(<= ULTIMATE.start_main_~j~5 25), 99488#(<= ULTIMATE.start_main_~j~5 26), 99491#(<= ULTIMATE.start_main_~j~5 23), 99490#(<= ULTIMATE.start_main_~j~5 24), 99493#(<= ULTIMATE.start_main_~j~5 21), 99492#(<= ULTIMATE.start_main_~j~5 22), 99495#(<= ULTIMATE.start_main_~j~5 19), 99494#(<= ULTIMATE.start_main_~j~5 20), 99497#(<= ULTIMATE.start_main_~j~5 17), 99496#(<= ULTIMATE.start_main_~j~5 18), 99499#(<= ULTIMATE.start_main_~j~5 15), 99498#(<= ULTIMATE.start_main_~j~5 16), 99501#(<= ULTIMATE.start_main_~j~5 13), 99500#(<= ULTIMATE.start_main_~j~5 14), 99503#(<= ULTIMATE.start_main_~j~5 11), 99502#(<= ULTIMATE.start_main_~j~5 12), 99505#(<= ULTIMATE.start_main_~j~5 9), 99504#(<= ULTIMATE.start_main_~j~5 10), 99507#(<= ULTIMATE.start_main_~j~5 7), 99506#(<= ULTIMATE.start_main_~j~5 8), 99509#(<= ULTIMATE.start_main_~j~5 5), 99508#(<= ULTIMATE.start_main_~j~5 6), 99511#(<= ULTIMATE.start_main_~j~5 3), 99510#(<= ULTIMATE.start_main_~j~5 4), 99513#(<= ULTIMATE.start_main_~j~5 1), 99512#(<= ULTIMATE.start_main_~j~5 2), 99514#(<= ULTIMATE.start_main_~j~5 0)] [2018-07-23 13:41:58,726 INFO L134 CoverageAnalysis]: Checked inductivity of 8103 backedges. 5402 proven. 2701 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:58,726 INFO L450 AbstractCegarLoop]: Interpolant automaton has 150 states [2018-07-23 13:41:58,726 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 150 interpolants. [2018-07-23 13:41:58,727 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5699, Invalid=16651, Unknown=0, NotChecked=0, Total=22350 [2018-07-23 13:41:58,727 INFO L87 Difference]: Start difference. First operand 225 states and 226 transitions. Second operand 150 states. [2018-07-23 13:41:59,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:59,749 INFO L93 Difference]: Finished difference Result 377 states and 379 transitions. [2018-07-23 13:41:59,749 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 150 states. [2018-07-23 13:41:59,749 INFO L78 Accepts]: Start accepts. Automaton has 150 states. Word has length 224 [2018-07-23 13:41:59,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:59,750 INFO L225 Difference]: With dead ends: 377 [2018-07-23 13:41:59,750 INFO L226 Difference]: Without dead ends: 226 [2018-07-23 13:41:59,754 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 222 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8030 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=11397, Invalid=38555, Unknown=0, NotChecked=0, Total=49952 [2018-07-23 13:41:59,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2018-07-23 13:41:59,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2018-07-23 13:41:59,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2018-07-23 13:41:59,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 227 transitions. [2018-07-23 13:41:59,790 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 227 transitions. Word has length 224 [2018-07-23 13:41:59,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:59,790 INFO L471 AbstractCegarLoop]: Abstraction has 226 states and 227 transitions. [2018-07-23 13:41:59,791 INFO L472 AbstractCegarLoop]: Interpolant automaton has 150 states. [2018-07-23 13:41:59,791 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 227 transitions. [2018-07-23 13:41:59,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2018-07-23 13:41:59,792 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:59,792 INFO L357 BasicCegarLoop]: trace histogram [74, 74, 73, 1, 1, 1, 1] [2018-07-23 13:41:59,792 INFO L414 AbstractCegarLoop]: === Iteration 148 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:59,792 INFO L82 PathProgramCache]: Analyzing trace with hash 126690563, now seen corresponding path program 146 times [2018-07-23 13:41:59,792 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:59,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:42:00,147 INFO L134 CoverageAnalysis]: Checked inductivity of 8177 backedges. 2775 proven. 5402 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:00,147 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:42:00,147 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [77] total 77 [2018-07-23 13:42:00,147 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:42:00,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:00,148 INFO L185 omatonBuilderFactory]: Interpolants [100869#true, 100871#(<= 0 ULTIMATE.start_main_~k~5), 100870#false, 100873#(<= 2 ULTIMATE.start_main_~k~5), 100872#(<= 1 ULTIMATE.start_main_~k~5), 100875#(<= 4 ULTIMATE.start_main_~k~5), 100874#(<= 3 ULTIMATE.start_main_~k~5), 100877#(<= 6 ULTIMATE.start_main_~k~5), 100876#(<= 5 ULTIMATE.start_main_~k~5), 100879#(<= 8 ULTIMATE.start_main_~k~5), 100878#(<= 7 ULTIMATE.start_main_~k~5), 100881#(<= 10 ULTIMATE.start_main_~k~5), 100880#(<= 9 ULTIMATE.start_main_~k~5), 100883#(<= 12 ULTIMATE.start_main_~k~5), 100882#(<= 11 ULTIMATE.start_main_~k~5), 100885#(<= 14 ULTIMATE.start_main_~k~5), 100884#(<= 13 ULTIMATE.start_main_~k~5), 100887#(<= 16 ULTIMATE.start_main_~k~5), 100886#(<= 15 ULTIMATE.start_main_~k~5), 100889#(<= 18 ULTIMATE.start_main_~k~5), 100888#(<= 17 ULTIMATE.start_main_~k~5), 100891#(<= 20 ULTIMATE.start_main_~k~5), 100890#(<= 19 ULTIMATE.start_main_~k~5), 100893#(<= 22 ULTIMATE.start_main_~k~5), 100892#(<= 21 ULTIMATE.start_main_~k~5), 100895#(<= 24 ULTIMATE.start_main_~k~5), 100894#(<= 23 ULTIMATE.start_main_~k~5), 100897#(<= 26 ULTIMATE.start_main_~k~5), 100896#(<= 25 ULTIMATE.start_main_~k~5), 100899#(<= 28 ULTIMATE.start_main_~k~5), 100898#(<= 27 ULTIMATE.start_main_~k~5), 100901#(<= 30 ULTIMATE.start_main_~k~5), 100900#(<= 29 ULTIMATE.start_main_~k~5), 100903#(<= 32 ULTIMATE.start_main_~k~5), 100902#(<= 31 ULTIMATE.start_main_~k~5), 100905#(<= 34 ULTIMATE.start_main_~k~5), 100904#(<= 33 ULTIMATE.start_main_~k~5), 100907#(<= 36 ULTIMATE.start_main_~k~5), 100906#(<= 35 ULTIMATE.start_main_~k~5), 100909#(<= 38 ULTIMATE.start_main_~k~5), 100908#(<= 37 ULTIMATE.start_main_~k~5), 100911#(<= 40 ULTIMATE.start_main_~k~5), 100910#(<= 39 ULTIMATE.start_main_~k~5), 100913#(<= 42 ULTIMATE.start_main_~k~5), 100912#(<= 41 ULTIMATE.start_main_~k~5), 100915#(<= 44 ULTIMATE.start_main_~k~5), 100914#(<= 43 ULTIMATE.start_main_~k~5), 100917#(<= 46 ULTIMATE.start_main_~k~5), 100916#(<= 45 ULTIMATE.start_main_~k~5), 100919#(<= 48 ULTIMATE.start_main_~k~5), 100918#(<= 47 ULTIMATE.start_main_~k~5), 100921#(<= 50 ULTIMATE.start_main_~k~5), 100920#(<= 49 ULTIMATE.start_main_~k~5), 100923#(<= 52 ULTIMATE.start_main_~k~5), 100922#(<= 51 ULTIMATE.start_main_~k~5), 100925#(<= 54 ULTIMATE.start_main_~k~5), 100924#(<= 53 ULTIMATE.start_main_~k~5), 100927#(<= 56 ULTIMATE.start_main_~k~5), 100926#(<= 55 ULTIMATE.start_main_~k~5), 100929#(<= 58 ULTIMATE.start_main_~k~5), 100928#(<= 57 ULTIMATE.start_main_~k~5), 100931#(<= 60 ULTIMATE.start_main_~k~5), 100930#(<= 59 ULTIMATE.start_main_~k~5), 100933#(<= 62 ULTIMATE.start_main_~k~5), 100932#(<= 61 ULTIMATE.start_main_~k~5), 100935#(<= 64 ULTIMATE.start_main_~k~5), 100934#(<= 63 ULTIMATE.start_main_~k~5), 100937#(<= 66 ULTIMATE.start_main_~k~5), 100936#(<= 65 ULTIMATE.start_main_~k~5), 100939#(<= 68 ULTIMATE.start_main_~k~5), 100938#(<= 67 ULTIMATE.start_main_~k~5), 100941#(<= 70 ULTIMATE.start_main_~k~5), 100940#(<= 69 ULTIMATE.start_main_~k~5), 100943#(<= 72 ULTIMATE.start_main_~k~5), 100942#(<= 71 ULTIMATE.start_main_~k~5), 100945#(<= 74 ULTIMATE.start_main_~k~5), 100944#(<= 73 ULTIMATE.start_main_~k~5), 100946#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond)] [2018-07-23 13:42:00,148 INFO L134 CoverageAnalysis]: Checked inductivity of 8177 backedges. 2775 proven. 5402 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:00,148 INFO L450 AbstractCegarLoop]: Interpolant automaton has 78 states [2018-07-23 13:42:00,148 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2018-07-23 13:42:00,149 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2928, Invalid=3078, Unknown=0, NotChecked=0, Total=6006 [2018-07-23 13:42:00,149 INFO L87 Difference]: Start difference. First operand 226 states and 227 transitions. Second operand 78 states. [2018-07-23 13:42:00,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:42:00,400 INFO L93 Difference]: Finished difference Result 234 states and 235 transitions. [2018-07-23 13:42:00,400 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 152 states. [2018-07-23 13:42:00,400 INFO L78 Accepts]: Start accepts. Automaton has 78 states. Word has length 225 [2018-07-23 13:42:00,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:42:00,401 INFO L225 Difference]: With dead ends: 234 [2018-07-23 13:42:00,401 INFO L226 Difference]: Without dead ends: 232 [2018-07-23 13:42:00,402 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 151 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5550 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=8778, Invalid=14478, Unknown=0, NotChecked=0, Total=23256 [2018-07-23 13:42:00,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2018-07-23 13:42:00,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 228. [2018-07-23 13:42:00,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2018-07-23 13:42:00,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 229 transitions. [2018-07-23 13:42:00,425 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 229 transitions. Word has length 225 [2018-07-23 13:42:00,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:42:00,425 INFO L471 AbstractCegarLoop]: Abstraction has 228 states and 229 transitions. [2018-07-23 13:42:00,425 INFO L472 AbstractCegarLoop]: Interpolant automaton has 78 states. [2018-07-23 13:42:00,425 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 229 transitions. [2018-07-23 13:42:00,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2018-07-23 13:42:00,426 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:42:00,426 INFO L357 BasicCegarLoop]: trace histogram [75, 74, 74, 1, 1, 1, 1] [2018-07-23 13:42:00,426 INFO L414 AbstractCegarLoop]: === Iteration 149 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:42:00,426 INFO L82 PathProgramCache]: Analyzing trace with hash 1490612779, now seen corresponding path program 147 times [2018-07-23 13:42:00,426 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:42:00,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:42:00,922 INFO L134 CoverageAnalysis]: Checked inductivity of 8325 backedges. 5550 proven. 2775 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:00,922 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:42:00,922 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [151] total 151 [2018-07-23 13:42:00,922 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:42:00,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:00,923 INFO L185 omatonBuilderFactory]: Interpolants [102145#(<= ULTIMATE.start_main_~j~5 27), 102144#(<= ULTIMATE.start_main_~j~5 28), 102147#(<= ULTIMATE.start_main_~j~5 25), 102146#(<= ULTIMATE.start_main_~j~5 26), 102149#(<= ULTIMATE.start_main_~j~5 23), 102148#(<= ULTIMATE.start_main_~j~5 24), 102151#(<= ULTIMATE.start_main_~j~5 21), 102150#(<= ULTIMATE.start_main_~j~5 22), 102153#(<= ULTIMATE.start_main_~j~5 19), 102152#(<= ULTIMATE.start_main_~j~5 20), 102155#(<= ULTIMATE.start_main_~j~5 17), 102154#(<= ULTIMATE.start_main_~j~5 18), 102157#(<= ULTIMATE.start_main_~j~5 15), 102156#(<= ULTIMATE.start_main_~j~5 16), 102159#(<= ULTIMATE.start_main_~j~5 13), 102158#(<= ULTIMATE.start_main_~j~5 14), 102161#(<= ULTIMATE.start_main_~j~5 11), 102160#(<= ULTIMATE.start_main_~j~5 12), 102163#(<= ULTIMATE.start_main_~j~5 9), 102162#(<= ULTIMATE.start_main_~j~5 10), 102165#(<= ULTIMATE.start_main_~j~5 7), 102164#(<= ULTIMATE.start_main_~j~5 8), 102167#(<= ULTIMATE.start_main_~j~5 5), 102166#(<= ULTIMATE.start_main_~j~5 6), 102169#(<= ULTIMATE.start_main_~j~5 3), 102168#(<= ULTIMATE.start_main_~j~5 4), 102171#(<= ULTIMATE.start_main_~j~5 1), 102170#(<= ULTIMATE.start_main_~j~5 2), 102172#(<= ULTIMATE.start_main_~j~5 0), 102021#true, 102023#(<= ULTIMATE.start_main_~i~5 0), 102022#false, 102025#(<= ULTIMATE.start_main_~i~5 2), 102024#(<= ULTIMATE.start_main_~i~5 1), 102027#(<= ULTIMATE.start_main_~i~5 4), 102026#(<= ULTIMATE.start_main_~i~5 3), 102029#(<= ULTIMATE.start_main_~i~5 6), 102028#(<= ULTIMATE.start_main_~i~5 5), 102031#(<= ULTIMATE.start_main_~i~5 8), 102030#(<= ULTIMATE.start_main_~i~5 7), 102033#(<= ULTIMATE.start_main_~i~5 10), 102032#(<= ULTIMATE.start_main_~i~5 9), 102035#(<= ULTIMATE.start_main_~i~5 12), 102034#(<= ULTIMATE.start_main_~i~5 11), 102037#(<= ULTIMATE.start_main_~i~5 14), 102036#(<= ULTIMATE.start_main_~i~5 13), 102039#(<= ULTIMATE.start_main_~i~5 16), 102038#(<= ULTIMATE.start_main_~i~5 15), 102041#(<= ULTIMATE.start_main_~i~5 18), 102040#(<= ULTIMATE.start_main_~i~5 17), 102043#(<= ULTIMATE.start_main_~i~5 20), 102042#(<= ULTIMATE.start_main_~i~5 19), 102045#(<= ULTIMATE.start_main_~i~5 22), 102044#(<= ULTIMATE.start_main_~i~5 21), 102047#(<= ULTIMATE.start_main_~i~5 24), 102046#(<= ULTIMATE.start_main_~i~5 23), 102049#(<= ULTIMATE.start_main_~i~5 26), 102048#(<= ULTIMATE.start_main_~i~5 25), 102051#(<= ULTIMATE.start_main_~i~5 28), 102050#(<= ULTIMATE.start_main_~i~5 27), 102053#(<= ULTIMATE.start_main_~i~5 30), 102052#(<= ULTIMATE.start_main_~i~5 29), 102055#(<= ULTIMATE.start_main_~i~5 32), 102054#(<= ULTIMATE.start_main_~i~5 31), 102057#(<= ULTIMATE.start_main_~i~5 34), 102056#(<= ULTIMATE.start_main_~i~5 33), 102059#(<= ULTIMATE.start_main_~i~5 36), 102058#(<= ULTIMATE.start_main_~i~5 35), 102061#(<= ULTIMATE.start_main_~i~5 38), 102060#(<= ULTIMATE.start_main_~i~5 37), 102063#(<= ULTIMATE.start_main_~i~5 40), 102062#(<= ULTIMATE.start_main_~i~5 39), 102065#(<= ULTIMATE.start_main_~i~5 42), 102064#(<= ULTIMATE.start_main_~i~5 41), 102067#(<= ULTIMATE.start_main_~i~5 44), 102066#(<= ULTIMATE.start_main_~i~5 43), 102069#(<= ULTIMATE.start_main_~i~5 46), 102068#(<= ULTIMATE.start_main_~i~5 45), 102071#(<= ULTIMATE.start_main_~i~5 48), 102070#(<= ULTIMATE.start_main_~i~5 47), 102073#(<= ULTIMATE.start_main_~i~5 50), 102072#(<= ULTIMATE.start_main_~i~5 49), 102075#(<= ULTIMATE.start_main_~i~5 52), 102074#(<= ULTIMATE.start_main_~i~5 51), 102077#(<= ULTIMATE.start_main_~i~5 54), 102076#(<= ULTIMATE.start_main_~i~5 53), 102079#(<= ULTIMATE.start_main_~i~5 56), 102078#(<= ULTIMATE.start_main_~i~5 55), 102081#(<= ULTIMATE.start_main_~i~5 58), 102080#(<= ULTIMATE.start_main_~i~5 57), 102083#(<= ULTIMATE.start_main_~i~5 60), 102082#(<= ULTIMATE.start_main_~i~5 59), 102085#(<= ULTIMATE.start_main_~i~5 62), 102084#(<= ULTIMATE.start_main_~i~5 61), 102087#(<= ULTIMATE.start_main_~i~5 64), 102086#(<= ULTIMATE.start_main_~i~5 63), 102089#(<= ULTIMATE.start_main_~i~5 66), 102088#(<= ULTIMATE.start_main_~i~5 65), 102091#(<= ULTIMATE.start_main_~i~5 68), 102090#(<= ULTIMATE.start_main_~i~5 67), 102093#(<= ULTIMATE.start_main_~i~5 70), 102092#(<= ULTIMATE.start_main_~i~5 69), 102095#(<= ULTIMATE.start_main_~i~5 72), 102094#(<= ULTIMATE.start_main_~i~5 71), 102097#(<= ULTIMATE.start_main_~i~5 74), 102096#(<= ULTIMATE.start_main_~i~5 73), 102099#(<= ULTIMATE.start_main_~j~5 73), 102098#(<= ULTIMATE.start_main_~j~5 74), 102101#(<= ULTIMATE.start_main_~j~5 71), 102100#(<= ULTIMATE.start_main_~j~5 72), 102103#(<= ULTIMATE.start_main_~j~5 69), 102102#(<= ULTIMATE.start_main_~j~5 70), 102105#(<= ULTIMATE.start_main_~j~5 67), 102104#(<= ULTIMATE.start_main_~j~5 68), 102107#(<= ULTIMATE.start_main_~j~5 65), 102106#(<= ULTIMATE.start_main_~j~5 66), 102109#(<= ULTIMATE.start_main_~j~5 63), 102108#(<= ULTIMATE.start_main_~j~5 64), 102111#(<= ULTIMATE.start_main_~j~5 61), 102110#(<= ULTIMATE.start_main_~j~5 62), 102113#(<= ULTIMATE.start_main_~j~5 59), 102112#(<= ULTIMATE.start_main_~j~5 60), 102115#(<= ULTIMATE.start_main_~j~5 57), 102114#(<= ULTIMATE.start_main_~j~5 58), 102117#(<= ULTIMATE.start_main_~j~5 55), 102116#(<= ULTIMATE.start_main_~j~5 56), 102119#(<= ULTIMATE.start_main_~j~5 53), 102118#(<= ULTIMATE.start_main_~j~5 54), 102121#(<= ULTIMATE.start_main_~j~5 51), 102120#(<= ULTIMATE.start_main_~j~5 52), 102123#(<= ULTIMATE.start_main_~j~5 49), 102122#(<= ULTIMATE.start_main_~j~5 50), 102125#(<= ULTIMATE.start_main_~j~5 47), 102124#(<= ULTIMATE.start_main_~j~5 48), 102127#(<= ULTIMATE.start_main_~j~5 45), 102126#(<= ULTIMATE.start_main_~j~5 46), 102129#(<= ULTIMATE.start_main_~j~5 43), 102128#(<= ULTIMATE.start_main_~j~5 44), 102131#(<= ULTIMATE.start_main_~j~5 41), 102130#(<= ULTIMATE.start_main_~j~5 42), 102133#(<= ULTIMATE.start_main_~j~5 39), 102132#(<= ULTIMATE.start_main_~j~5 40), 102135#(<= ULTIMATE.start_main_~j~5 37), 102134#(<= ULTIMATE.start_main_~j~5 38), 102137#(<= ULTIMATE.start_main_~j~5 35), 102136#(<= ULTIMATE.start_main_~j~5 36), 102139#(<= ULTIMATE.start_main_~j~5 33), 102138#(<= ULTIMATE.start_main_~j~5 34), 102141#(<= ULTIMATE.start_main_~j~5 31), 102140#(<= ULTIMATE.start_main_~j~5 32), 102143#(<= ULTIMATE.start_main_~j~5 29), 102142#(<= ULTIMATE.start_main_~j~5 30)] [2018-07-23 13:42:00,924 INFO L134 CoverageAnalysis]: Checked inductivity of 8325 backedges. 5550 proven. 2775 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:00,924 INFO L450 AbstractCegarLoop]: Interpolant automaton has 152 states [2018-07-23 13:42:00,925 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 152 interpolants. [2018-07-23 13:42:00,926 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5851, Invalid=17101, Unknown=0, NotChecked=0, Total=22952 [2018-07-23 13:42:00,926 INFO L87 Difference]: Start difference. First operand 228 states and 229 transitions. Second operand 152 states. [2018-07-23 13:42:02,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:42:02,085 INFO L93 Difference]: Finished difference Result 382 states and 384 transitions. [2018-07-23 13:42:02,085 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 152 states. [2018-07-23 13:42:02,085 INFO L78 Accepts]: Start accepts. Automaton has 152 states. Word has length 227 [2018-07-23 13:42:02,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:42:02,086 INFO L225 Difference]: With dead ends: 382 [2018-07-23 13:42:02,086 INFO L226 Difference]: Without dead ends: 229 [2018-07-23 13:42:02,089 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 225 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8251 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=11701, Invalid=39601, Unknown=0, NotChecked=0, Total=51302 [2018-07-23 13:42:02,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2018-07-23 13:42:02,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2018-07-23 13:42:02,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2018-07-23 13:42:02,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 230 transitions. [2018-07-23 13:42:02,111 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 230 transitions. Word has length 227 [2018-07-23 13:42:02,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:42:02,112 INFO L471 AbstractCegarLoop]: Abstraction has 229 states and 230 transitions. [2018-07-23 13:42:02,112 INFO L472 AbstractCegarLoop]: Interpolant automaton has 152 states. [2018-07-23 13:42:02,112 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 230 transitions. [2018-07-23 13:42:02,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2018-07-23 13:42:02,112 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:42:02,112 INFO L357 BasicCegarLoop]: trace histogram [75, 75, 74, 1, 1, 1, 1] [2018-07-23 13:42:02,112 INFO L414 AbstractCegarLoop]: === Iteration 150 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:42:02,113 INFO L82 PathProgramCache]: Analyzing trace with hash 422913042, now seen corresponding path program 148 times [2018-07-23 13:42:02,113 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:42:02,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:42:02,410 INFO L134 CoverageAnalysis]: Checked inductivity of 8400 backedges. 2850 proven. 5550 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:02,411 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:42:02,411 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [78] total 78 [2018-07-23 13:42:02,411 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:42:02,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:02,411 INFO L185 omatonBuilderFactory]: Interpolants [103553#(<= 6 ULTIMATE.start_main_~k~5), 103552#(<= 5 ULTIMATE.start_main_~k~5), 103555#(<= 8 ULTIMATE.start_main_~k~5), 103554#(<= 7 ULTIMATE.start_main_~k~5), 103557#(<= 10 ULTIMATE.start_main_~k~5), 103556#(<= 9 ULTIMATE.start_main_~k~5), 103559#(<= 12 ULTIMATE.start_main_~k~5), 103558#(<= 11 ULTIMATE.start_main_~k~5), 103561#(<= 14 ULTIMATE.start_main_~k~5), 103560#(<= 13 ULTIMATE.start_main_~k~5), 103563#(<= 16 ULTIMATE.start_main_~k~5), 103562#(<= 15 ULTIMATE.start_main_~k~5), 103565#(<= 18 ULTIMATE.start_main_~k~5), 103564#(<= 17 ULTIMATE.start_main_~k~5), 103567#(<= 20 ULTIMATE.start_main_~k~5), 103566#(<= 19 ULTIMATE.start_main_~k~5), 103569#(<= 22 ULTIMATE.start_main_~k~5), 103568#(<= 21 ULTIMATE.start_main_~k~5), 103571#(<= 24 ULTIMATE.start_main_~k~5), 103570#(<= 23 ULTIMATE.start_main_~k~5), 103573#(<= 26 ULTIMATE.start_main_~k~5), 103572#(<= 25 ULTIMATE.start_main_~k~5), 103575#(<= 28 ULTIMATE.start_main_~k~5), 103574#(<= 27 ULTIMATE.start_main_~k~5), 103577#(<= 30 ULTIMATE.start_main_~k~5), 103576#(<= 29 ULTIMATE.start_main_~k~5), 103579#(<= 32 ULTIMATE.start_main_~k~5), 103578#(<= 31 ULTIMATE.start_main_~k~5), 103581#(<= 34 ULTIMATE.start_main_~k~5), 103580#(<= 33 ULTIMATE.start_main_~k~5), 103583#(<= 36 ULTIMATE.start_main_~k~5), 103582#(<= 35 ULTIMATE.start_main_~k~5), 103585#(<= 38 ULTIMATE.start_main_~k~5), 103584#(<= 37 ULTIMATE.start_main_~k~5), 103587#(<= 40 ULTIMATE.start_main_~k~5), 103586#(<= 39 ULTIMATE.start_main_~k~5), 103589#(<= 42 ULTIMATE.start_main_~k~5), 103588#(<= 41 ULTIMATE.start_main_~k~5), 103591#(<= 44 ULTIMATE.start_main_~k~5), 103590#(<= 43 ULTIMATE.start_main_~k~5), 103593#(<= 46 ULTIMATE.start_main_~k~5), 103592#(<= 45 ULTIMATE.start_main_~k~5), 103595#(<= 48 ULTIMATE.start_main_~k~5), 103594#(<= 47 ULTIMATE.start_main_~k~5), 103597#(<= 50 ULTIMATE.start_main_~k~5), 103596#(<= 49 ULTIMATE.start_main_~k~5), 103599#(<= 52 ULTIMATE.start_main_~k~5), 103598#(<= 51 ULTIMATE.start_main_~k~5), 103601#(<= 54 ULTIMATE.start_main_~k~5), 103600#(<= 53 ULTIMATE.start_main_~k~5), 103603#(<= 56 ULTIMATE.start_main_~k~5), 103602#(<= 55 ULTIMATE.start_main_~k~5), 103605#(<= 58 ULTIMATE.start_main_~k~5), 103604#(<= 57 ULTIMATE.start_main_~k~5), 103607#(<= 60 ULTIMATE.start_main_~k~5), 103606#(<= 59 ULTIMATE.start_main_~k~5), 103609#(<= 62 ULTIMATE.start_main_~k~5), 103608#(<= 61 ULTIMATE.start_main_~k~5), 103611#(<= 64 ULTIMATE.start_main_~k~5), 103610#(<= 63 ULTIMATE.start_main_~k~5), 103613#(<= 66 ULTIMATE.start_main_~k~5), 103612#(<= 65 ULTIMATE.start_main_~k~5), 103615#(<= 68 ULTIMATE.start_main_~k~5), 103614#(<= 67 ULTIMATE.start_main_~k~5), 103617#(<= 70 ULTIMATE.start_main_~k~5), 103616#(<= 69 ULTIMATE.start_main_~k~5), 103619#(<= 72 ULTIMATE.start_main_~k~5), 103618#(<= 71 ULTIMATE.start_main_~k~5), 103621#(<= 74 ULTIMATE.start_main_~k~5), 103620#(<= 73 ULTIMATE.start_main_~k~5), 103623#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 103622#(<= 75 ULTIMATE.start_main_~k~5), 103545#true, 103547#(<= 0 ULTIMATE.start_main_~k~5), 103546#false, 103549#(<= 2 ULTIMATE.start_main_~k~5), 103548#(<= 1 ULTIMATE.start_main_~k~5), 103551#(<= 4 ULTIMATE.start_main_~k~5), 103550#(<= 3 ULTIMATE.start_main_~k~5)] [2018-07-23 13:42:02,412 INFO L134 CoverageAnalysis]: Checked inductivity of 8400 backedges. 2850 proven. 5550 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:02,412 INFO L450 AbstractCegarLoop]: Interpolant automaton has 79 states [2018-07-23 13:42:02,412 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2018-07-23 13:42:02,413 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3005, Invalid=3157, Unknown=0, NotChecked=0, Total=6162 [2018-07-23 13:42:02,413 INFO L87 Difference]: Start difference. First operand 229 states and 230 transitions. Second operand 79 states. [2018-07-23 13:42:02,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:42:02,697 INFO L93 Difference]: Finished difference Result 237 states and 238 transitions. [2018-07-23 13:42:02,698 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 154 states. [2018-07-23 13:42:02,698 INFO L78 Accepts]: Start accepts. Automaton has 79 states. Word has length 228 [2018-07-23 13:42:02,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:42:02,698 INFO L225 Difference]: With dead ends: 237 [2018-07-23 13:42:02,698 INFO L226 Difference]: Without dead ends: 235 [2018-07-23 13:42:02,700 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 153 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5700 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9009, Invalid=14861, Unknown=0, NotChecked=0, Total=23870 [2018-07-23 13:42:02,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2018-07-23 13:42:02,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 231. [2018-07-23 13:42:02,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2018-07-23 13:42:02,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 232 transitions. [2018-07-23 13:42:02,722 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 232 transitions. Word has length 228 [2018-07-23 13:42:02,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:42:02,723 INFO L471 AbstractCegarLoop]: Abstraction has 231 states and 232 transitions. [2018-07-23 13:42:02,723 INFO L472 AbstractCegarLoop]: Interpolant automaton has 79 states. [2018-07-23 13:42:02,723 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 232 transitions. [2018-07-23 13:42:02,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2018-07-23 13:42:02,723 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:42:02,723 INFO L357 BasicCegarLoop]: trace histogram [76, 75, 75, 1, 1, 1, 1] [2018-07-23 13:42:02,723 INFO L414 AbstractCegarLoop]: === Iteration 151 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:42:02,724 INFO L82 PathProgramCache]: Analyzing trace with hash -1602393734, now seen corresponding path program 149 times [2018-07-23 13:42:02,724 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:42:02,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:42:03,282 INFO L134 CoverageAnalysis]: Checked inductivity of 8550 backedges. 5700 proven. 2850 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:03,283 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:42:03,283 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [153] total 153 [2018-07-23 13:42:03,283 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:42:03,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:03,283 INFO L185 omatonBuilderFactory]: Interpolants [104713#false, 104712#true, 104715#(<= ULTIMATE.start_main_~i~5 1), 104714#(<= ULTIMATE.start_main_~i~5 0), 104717#(<= ULTIMATE.start_main_~i~5 3), 104716#(<= ULTIMATE.start_main_~i~5 2), 104719#(<= ULTIMATE.start_main_~i~5 5), 104718#(<= ULTIMATE.start_main_~i~5 4), 104721#(<= ULTIMATE.start_main_~i~5 7), 104720#(<= ULTIMATE.start_main_~i~5 6), 104723#(<= ULTIMATE.start_main_~i~5 9), 104722#(<= ULTIMATE.start_main_~i~5 8), 104725#(<= ULTIMATE.start_main_~i~5 11), 104724#(<= ULTIMATE.start_main_~i~5 10), 104727#(<= ULTIMATE.start_main_~i~5 13), 104726#(<= ULTIMATE.start_main_~i~5 12), 104729#(<= ULTIMATE.start_main_~i~5 15), 104728#(<= ULTIMATE.start_main_~i~5 14), 104731#(<= ULTIMATE.start_main_~i~5 17), 104730#(<= ULTIMATE.start_main_~i~5 16), 104733#(<= ULTIMATE.start_main_~i~5 19), 104732#(<= ULTIMATE.start_main_~i~5 18), 104735#(<= ULTIMATE.start_main_~i~5 21), 104734#(<= ULTIMATE.start_main_~i~5 20), 104737#(<= ULTIMATE.start_main_~i~5 23), 104736#(<= ULTIMATE.start_main_~i~5 22), 104739#(<= ULTIMATE.start_main_~i~5 25), 104738#(<= ULTIMATE.start_main_~i~5 24), 104741#(<= ULTIMATE.start_main_~i~5 27), 104740#(<= ULTIMATE.start_main_~i~5 26), 104743#(<= ULTIMATE.start_main_~i~5 29), 104742#(<= ULTIMATE.start_main_~i~5 28), 104745#(<= ULTIMATE.start_main_~i~5 31), 104744#(<= ULTIMATE.start_main_~i~5 30), 104747#(<= ULTIMATE.start_main_~i~5 33), 104746#(<= ULTIMATE.start_main_~i~5 32), 104749#(<= ULTIMATE.start_main_~i~5 35), 104748#(<= ULTIMATE.start_main_~i~5 34), 104751#(<= ULTIMATE.start_main_~i~5 37), 104750#(<= ULTIMATE.start_main_~i~5 36), 104753#(<= ULTIMATE.start_main_~i~5 39), 104752#(<= ULTIMATE.start_main_~i~5 38), 104755#(<= ULTIMATE.start_main_~i~5 41), 104754#(<= ULTIMATE.start_main_~i~5 40), 104757#(<= ULTIMATE.start_main_~i~5 43), 104756#(<= ULTIMATE.start_main_~i~5 42), 104759#(<= ULTIMATE.start_main_~i~5 45), 104758#(<= ULTIMATE.start_main_~i~5 44), 104761#(<= ULTIMATE.start_main_~i~5 47), 104760#(<= ULTIMATE.start_main_~i~5 46), 104763#(<= ULTIMATE.start_main_~i~5 49), 104762#(<= ULTIMATE.start_main_~i~5 48), 104765#(<= ULTIMATE.start_main_~i~5 51), 104764#(<= ULTIMATE.start_main_~i~5 50), 104767#(<= ULTIMATE.start_main_~i~5 53), 104766#(<= ULTIMATE.start_main_~i~5 52), 104769#(<= ULTIMATE.start_main_~i~5 55), 104768#(<= ULTIMATE.start_main_~i~5 54), 104771#(<= ULTIMATE.start_main_~i~5 57), 104770#(<= ULTIMATE.start_main_~i~5 56), 104773#(<= ULTIMATE.start_main_~i~5 59), 104772#(<= ULTIMATE.start_main_~i~5 58), 104775#(<= ULTIMATE.start_main_~i~5 61), 104774#(<= ULTIMATE.start_main_~i~5 60), 104777#(<= ULTIMATE.start_main_~i~5 63), 104776#(<= ULTIMATE.start_main_~i~5 62), 104779#(<= ULTIMATE.start_main_~i~5 65), 104778#(<= ULTIMATE.start_main_~i~5 64), 104781#(<= ULTIMATE.start_main_~i~5 67), 104780#(<= ULTIMATE.start_main_~i~5 66), 104783#(<= ULTIMATE.start_main_~i~5 69), 104782#(<= ULTIMATE.start_main_~i~5 68), 104785#(<= ULTIMATE.start_main_~i~5 71), 104784#(<= ULTIMATE.start_main_~i~5 70), 104787#(<= ULTIMATE.start_main_~i~5 73), 104786#(<= ULTIMATE.start_main_~i~5 72), 104789#(<= ULTIMATE.start_main_~i~5 75), 104788#(<= ULTIMATE.start_main_~i~5 74), 104791#(<= ULTIMATE.start_main_~j~5 74), 104790#(<= ULTIMATE.start_main_~j~5 75), 104793#(<= ULTIMATE.start_main_~j~5 72), 104792#(<= ULTIMATE.start_main_~j~5 73), 104795#(<= ULTIMATE.start_main_~j~5 70), 104794#(<= ULTIMATE.start_main_~j~5 71), 104797#(<= ULTIMATE.start_main_~j~5 68), 104796#(<= ULTIMATE.start_main_~j~5 69), 104799#(<= ULTIMATE.start_main_~j~5 66), 104798#(<= ULTIMATE.start_main_~j~5 67), 104801#(<= ULTIMATE.start_main_~j~5 64), 104800#(<= ULTIMATE.start_main_~j~5 65), 104803#(<= ULTIMATE.start_main_~j~5 62), 104802#(<= ULTIMATE.start_main_~j~5 63), 104805#(<= ULTIMATE.start_main_~j~5 60), 104804#(<= ULTIMATE.start_main_~j~5 61), 104807#(<= ULTIMATE.start_main_~j~5 58), 104806#(<= ULTIMATE.start_main_~j~5 59), 104809#(<= ULTIMATE.start_main_~j~5 56), 104808#(<= ULTIMATE.start_main_~j~5 57), 104811#(<= ULTIMATE.start_main_~j~5 54), 104810#(<= ULTIMATE.start_main_~j~5 55), 104813#(<= ULTIMATE.start_main_~j~5 52), 104812#(<= ULTIMATE.start_main_~j~5 53), 104815#(<= ULTIMATE.start_main_~j~5 50), 104814#(<= ULTIMATE.start_main_~j~5 51), 104817#(<= ULTIMATE.start_main_~j~5 48), 104816#(<= ULTIMATE.start_main_~j~5 49), 104819#(<= ULTIMATE.start_main_~j~5 46), 104818#(<= ULTIMATE.start_main_~j~5 47), 104821#(<= ULTIMATE.start_main_~j~5 44), 104820#(<= ULTIMATE.start_main_~j~5 45), 104823#(<= ULTIMATE.start_main_~j~5 42), 104822#(<= ULTIMATE.start_main_~j~5 43), 104825#(<= ULTIMATE.start_main_~j~5 40), 104824#(<= ULTIMATE.start_main_~j~5 41), 104827#(<= ULTIMATE.start_main_~j~5 38), 104826#(<= ULTIMATE.start_main_~j~5 39), 104829#(<= ULTIMATE.start_main_~j~5 36), 104828#(<= ULTIMATE.start_main_~j~5 37), 104831#(<= ULTIMATE.start_main_~j~5 34), 104830#(<= ULTIMATE.start_main_~j~5 35), 104833#(<= ULTIMATE.start_main_~j~5 32), 104832#(<= ULTIMATE.start_main_~j~5 33), 104835#(<= ULTIMATE.start_main_~j~5 30), 104834#(<= ULTIMATE.start_main_~j~5 31), 104837#(<= ULTIMATE.start_main_~j~5 28), 104836#(<= ULTIMATE.start_main_~j~5 29), 104839#(<= ULTIMATE.start_main_~j~5 26), 104838#(<= ULTIMATE.start_main_~j~5 27), 104841#(<= ULTIMATE.start_main_~j~5 24), 104840#(<= ULTIMATE.start_main_~j~5 25), 104843#(<= ULTIMATE.start_main_~j~5 22), 104842#(<= ULTIMATE.start_main_~j~5 23), 104845#(<= ULTIMATE.start_main_~j~5 20), 104844#(<= ULTIMATE.start_main_~j~5 21), 104847#(<= ULTIMATE.start_main_~j~5 18), 104846#(<= ULTIMATE.start_main_~j~5 19), 104849#(<= ULTIMATE.start_main_~j~5 16), 104848#(<= ULTIMATE.start_main_~j~5 17), 104851#(<= ULTIMATE.start_main_~j~5 14), 104850#(<= ULTIMATE.start_main_~j~5 15), 104853#(<= ULTIMATE.start_main_~j~5 12), 104852#(<= ULTIMATE.start_main_~j~5 13), 104855#(<= ULTIMATE.start_main_~j~5 10), 104854#(<= ULTIMATE.start_main_~j~5 11), 104857#(<= ULTIMATE.start_main_~j~5 8), 104856#(<= ULTIMATE.start_main_~j~5 9), 104859#(<= ULTIMATE.start_main_~j~5 6), 104858#(<= ULTIMATE.start_main_~j~5 7), 104861#(<= ULTIMATE.start_main_~j~5 4), 104860#(<= ULTIMATE.start_main_~j~5 5), 104863#(<= ULTIMATE.start_main_~j~5 2), 104862#(<= ULTIMATE.start_main_~j~5 3), 104865#(<= ULTIMATE.start_main_~j~5 0), 104864#(<= ULTIMATE.start_main_~j~5 1)] [2018-07-23 13:42:03,284 INFO L134 CoverageAnalysis]: Checked inductivity of 8550 backedges. 5700 proven. 2850 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:03,284 INFO L450 AbstractCegarLoop]: Interpolant automaton has 154 states [2018-07-23 13:42:03,285 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 154 interpolants. [2018-07-23 13:42:03,287 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6005, Invalid=17557, Unknown=0, NotChecked=0, Total=23562 [2018-07-23 13:42:03,287 INFO L87 Difference]: Start difference. First operand 231 states and 232 transitions. Second operand 154 states. [2018-07-23 13:42:04,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:42:04,444 INFO L93 Difference]: Finished difference Result 387 states and 389 transitions. [2018-07-23 13:42:04,444 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 154 states. [2018-07-23 13:42:04,444 INFO L78 Accepts]: Start accepts. Automaton has 154 states. Word has length 230 [2018-07-23 13:42:04,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:42:04,445 INFO L225 Difference]: With dead ends: 387 [2018-07-23 13:42:04,445 INFO L226 Difference]: Without dead ends: 232 [2018-07-23 13:42:04,447 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 228 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8475 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=12009, Invalid=40661, Unknown=0, NotChecked=0, Total=52670 [2018-07-23 13:42:04,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2018-07-23 13:42:04,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2018-07-23 13:42:04,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2018-07-23 13:42:04,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 233 transitions. [2018-07-23 13:42:04,471 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 233 transitions. Word has length 230 [2018-07-23 13:42:04,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:42:04,471 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 233 transitions. [2018-07-23 13:42:04,471 INFO L472 AbstractCegarLoop]: Interpolant automaton has 154 states. [2018-07-23 13:42:04,471 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 233 transitions. [2018-07-23 13:42:04,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2018-07-23 13:42:04,471 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:42:04,472 INFO L357 BasicCegarLoop]: trace histogram [76, 76, 75, 1, 1, 1, 1] [2018-07-23 13:42:04,472 INFO L414 AbstractCegarLoop]: === Iteration 152 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:42:04,472 INFO L82 PathProgramCache]: Analyzing trace with hash -917464525, now seen corresponding path program 150 times [2018-07-23 13:42:04,472 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:42:04,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:42:04,764 INFO L134 CoverageAnalysis]: Checked inductivity of 8626 backedges. 2926 proven. 5700 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:04,764 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:42:04,764 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [79] total 79 [2018-07-23 13:42:04,765 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:42:04,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:04,765 INFO L185 omatonBuilderFactory]: Interpolants [106257#false, 106256#true, 106259#(<= 1 ULTIMATE.start_main_~k~5), 106258#(<= 0 ULTIMATE.start_main_~k~5), 106261#(<= 3 ULTIMATE.start_main_~k~5), 106260#(<= 2 ULTIMATE.start_main_~k~5), 106263#(<= 5 ULTIMATE.start_main_~k~5), 106262#(<= 4 ULTIMATE.start_main_~k~5), 106265#(<= 7 ULTIMATE.start_main_~k~5), 106264#(<= 6 ULTIMATE.start_main_~k~5), 106267#(<= 9 ULTIMATE.start_main_~k~5), 106266#(<= 8 ULTIMATE.start_main_~k~5), 106269#(<= 11 ULTIMATE.start_main_~k~5), 106268#(<= 10 ULTIMATE.start_main_~k~5), 106271#(<= 13 ULTIMATE.start_main_~k~5), 106270#(<= 12 ULTIMATE.start_main_~k~5), 106273#(<= 15 ULTIMATE.start_main_~k~5), 106272#(<= 14 ULTIMATE.start_main_~k~5), 106275#(<= 17 ULTIMATE.start_main_~k~5), 106274#(<= 16 ULTIMATE.start_main_~k~5), 106277#(<= 19 ULTIMATE.start_main_~k~5), 106276#(<= 18 ULTIMATE.start_main_~k~5), 106279#(<= 21 ULTIMATE.start_main_~k~5), 106278#(<= 20 ULTIMATE.start_main_~k~5), 106281#(<= 23 ULTIMATE.start_main_~k~5), 106280#(<= 22 ULTIMATE.start_main_~k~5), 106283#(<= 25 ULTIMATE.start_main_~k~5), 106282#(<= 24 ULTIMATE.start_main_~k~5), 106285#(<= 27 ULTIMATE.start_main_~k~5), 106284#(<= 26 ULTIMATE.start_main_~k~5), 106287#(<= 29 ULTIMATE.start_main_~k~5), 106286#(<= 28 ULTIMATE.start_main_~k~5), 106289#(<= 31 ULTIMATE.start_main_~k~5), 106288#(<= 30 ULTIMATE.start_main_~k~5), 106291#(<= 33 ULTIMATE.start_main_~k~5), 106290#(<= 32 ULTIMATE.start_main_~k~5), 106293#(<= 35 ULTIMATE.start_main_~k~5), 106292#(<= 34 ULTIMATE.start_main_~k~5), 106295#(<= 37 ULTIMATE.start_main_~k~5), 106294#(<= 36 ULTIMATE.start_main_~k~5), 106297#(<= 39 ULTIMATE.start_main_~k~5), 106296#(<= 38 ULTIMATE.start_main_~k~5), 106299#(<= 41 ULTIMATE.start_main_~k~5), 106298#(<= 40 ULTIMATE.start_main_~k~5), 106301#(<= 43 ULTIMATE.start_main_~k~5), 106300#(<= 42 ULTIMATE.start_main_~k~5), 106303#(<= 45 ULTIMATE.start_main_~k~5), 106302#(<= 44 ULTIMATE.start_main_~k~5), 106305#(<= 47 ULTIMATE.start_main_~k~5), 106304#(<= 46 ULTIMATE.start_main_~k~5), 106307#(<= 49 ULTIMATE.start_main_~k~5), 106306#(<= 48 ULTIMATE.start_main_~k~5), 106309#(<= 51 ULTIMATE.start_main_~k~5), 106308#(<= 50 ULTIMATE.start_main_~k~5), 106311#(<= 53 ULTIMATE.start_main_~k~5), 106310#(<= 52 ULTIMATE.start_main_~k~5), 106313#(<= 55 ULTIMATE.start_main_~k~5), 106312#(<= 54 ULTIMATE.start_main_~k~5), 106315#(<= 57 ULTIMATE.start_main_~k~5), 106314#(<= 56 ULTIMATE.start_main_~k~5), 106317#(<= 59 ULTIMATE.start_main_~k~5), 106316#(<= 58 ULTIMATE.start_main_~k~5), 106319#(<= 61 ULTIMATE.start_main_~k~5), 106318#(<= 60 ULTIMATE.start_main_~k~5), 106321#(<= 63 ULTIMATE.start_main_~k~5), 106320#(<= 62 ULTIMATE.start_main_~k~5), 106323#(<= 65 ULTIMATE.start_main_~k~5), 106322#(<= 64 ULTIMATE.start_main_~k~5), 106325#(<= 67 ULTIMATE.start_main_~k~5), 106324#(<= 66 ULTIMATE.start_main_~k~5), 106327#(<= 69 ULTIMATE.start_main_~k~5), 106326#(<= 68 ULTIMATE.start_main_~k~5), 106329#(<= 71 ULTIMATE.start_main_~k~5), 106328#(<= 70 ULTIMATE.start_main_~k~5), 106331#(<= 73 ULTIMATE.start_main_~k~5), 106330#(<= 72 ULTIMATE.start_main_~k~5), 106333#(<= 75 ULTIMATE.start_main_~k~5), 106332#(<= 74 ULTIMATE.start_main_~k~5), 106335#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 106334#(<= 76 ULTIMATE.start_main_~k~5)] [2018-07-23 13:42:04,766 INFO L134 CoverageAnalysis]: Checked inductivity of 8626 backedges. 2926 proven. 5700 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:04,766 INFO L450 AbstractCegarLoop]: Interpolant automaton has 80 states [2018-07-23 13:42:04,766 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2018-07-23 13:42:04,766 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3083, Invalid=3237, Unknown=0, NotChecked=0, Total=6320 [2018-07-23 13:42:04,766 INFO L87 Difference]: Start difference. First operand 232 states and 233 transitions. Second operand 80 states. [2018-07-23 13:42:05,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:42:05,015 INFO L93 Difference]: Finished difference Result 240 states and 241 transitions. [2018-07-23 13:42:05,015 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 156 states. [2018-07-23 13:42:05,015 INFO L78 Accepts]: Start accepts. Automaton has 80 states. Word has length 231 [2018-07-23 13:42:05,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:42:05,016 INFO L225 Difference]: With dead ends: 240 [2018-07-23 13:42:05,016 INFO L226 Difference]: Without dead ends: 238 [2018-07-23 13:42:05,018 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5852 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9243, Invalid=15249, Unknown=0, NotChecked=0, Total=24492 [2018-07-23 13:42:05,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2018-07-23 13:42:05,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 234. [2018-07-23 13:42:05,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2018-07-23 13:42:05,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 235 transitions. [2018-07-23 13:42:05,042 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 235 transitions. Word has length 231 [2018-07-23 13:42:05,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:42:05,042 INFO L471 AbstractCegarLoop]: Abstraction has 234 states and 235 transitions. [2018-07-23 13:42:05,042 INFO L472 AbstractCegarLoop]: Interpolant automaton has 80 states. [2018-07-23 13:42:05,043 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 235 transitions. [2018-07-23 13:42:05,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2018-07-23 13:42:05,043 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:42:05,043 INFO L357 BasicCegarLoop]: trace histogram [77, 76, 76, 1, 1, 1, 1] [2018-07-23 13:42:05,043 INFO L414 AbstractCegarLoop]: === Iteration 153 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:42:05,043 INFO L82 PathProgramCache]: Analyzing trace with hash -1215046821, now seen corresponding path program 151 times [2018-07-23 13:42:05,044 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:42:05,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:42:05,565 INFO L134 CoverageAnalysis]: Checked inductivity of 8778 backedges. 5852 proven. 2926 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:05,565 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:42:05,565 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [155] total 155 [2018-07-23 13:42:05,565 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:42:05,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:05,566 INFO L185 omatonBuilderFactory]: Interpolants [107521#(<= ULTIMATE.start_main_~j~5 72), 107520#(<= ULTIMATE.start_main_~j~5 73), 107523#(<= ULTIMATE.start_main_~j~5 70), 107522#(<= ULTIMATE.start_main_~j~5 71), 107525#(<= ULTIMATE.start_main_~j~5 68), 107524#(<= ULTIMATE.start_main_~j~5 69), 107527#(<= ULTIMATE.start_main_~j~5 66), 107526#(<= ULTIMATE.start_main_~j~5 67), 107529#(<= ULTIMATE.start_main_~j~5 64), 107528#(<= ULTIMATE.start_main_~j~5 65), 107531#(<= ULTIMATE.start_main_~j~5 62), 107530#(<= ULTIMATE.start_main_~j~5 63), 107533#(<= ULTIMATE.start_main_~j~5 60), 107532#(<= ULTIMATE.start_main_~j~5 61), 107535#(<= ULTIMATE.start_main_~j~5 58), 107534#(<= ULTIMATE.start_main_~j~5 59), 107537#(<= ULTIMATE.start_main_~j~5 56), 107536#(<= ULTIMATE.start_main_~j~5 57), 107539#(<= ULTIMATE.start_main_~j~5 54), 107538#(<= ULTIMATE.start_main_~j~5 55), 107541#(<= ULTIMATE.start_main_~j~5 52), 107540#(<= ULTIMATE.start_main_~j~5 53), 107543#(<= ULTIMATE.start_main_~j~5 50), 107542#(<= ULTIMATE.start_main_~j~5 51), 107545#(<= ULTIMATE.start_main_~j~5 48), 107544#(<= ULTIMATE.start_main_~j~5 49), 107547#(<= ULTIMATE.start_main_~j~5 46), 107546#(<= ULTIMATE.start_main_~j~5 47), 107549#(<= ULTIMATE.start_main_~j~5 44), 107548#(<= ULTIMATE.start_main_~j~5 45), 107551#(<= ULTIMATE.start_main_~j~5 42), 107550#(<= ULTIMATE.start_main_~j~5 43), 107553#(<= ULTIMATE.start_main_~j~5 40), 107552#(<= ULTIMATE.start_main_~j~5 41), 107555#(<= ULTIMATE.start_main_~j~5 38), 107554#(<= ULTIMATE.start_main_~j~5 39), 107557#(<= ULTIMATE.start_main_~j~5 36), 107556#(<= ULTIMATE.start_main_~j~5 37), 107559#(<= ULTIMATE.start_main_~j~5 34), 107558#(<= ULTIMATE.start_main_~j~5 35), 107561#(<= ULTIMATE.start_main_~j~5 32), 107560#(<= ULTIMATE.start_main_~j~5 33), 107563#(<= ULTIMATE.start_main_~j~5 30), 107562#(<= ULTIMATE.start_main_~j~5 31), 107565#(<= ULTIMATE.start_main_~j~5 28), 107564#(<= ULTIMATE.start_main_~j~5 29), 107567#(<= ULTIMATE.start_main_~j~5 26), 107566#(<= ULTIMATE.start_main_~j~5 27), 107569#(<= ULTIMATE.start_main_~j~5 24), 107568#(<= ULTIMATE.start_main_~j~5 25), 107571#(<= ULTIMATE.start_main_~j~5 22), 107570#(<= ULTIMATE.start_main_~j~5 23), 107573#(<= ULTIMATE.start_main_~j~5 20), 107572#(<= ULTIMATE.start_main_~j~5 21), 107575#(<= ULTIMATE.start_main_~j~5 18), 107574#(<= ULTIMATE.start_main_~j~5 19), 107577#(<= ULTIMATE.start_main_~j~5 16), 107576#(<= ULTIMATE.start_main_~j~5 17), 107579#(<= ULTIMATE.start_main_~j~5 14), 107578#(<= ULTIMATE.start_main_~j~5 15), 107581#(<= ULTIMATE.start_main_~j~5 12), 107580#(<= ULTIMATE.start_main_~j~5 13), 107583#(<= ULTIMATE.start_main_~j~5 10), 107582#(<= ULTIMATE.start_main_~j~5 11), 107585#(<= ULTIMATE.start_main_~j~5 8), 107584#(<= ULTIMATE.start_main_~j~5 9), 107587#(<= ULTIMATE.start_main_~j~5 6), 107586#(<= ULTIMATE.start_main_~j~5 7), 107589#(<= ULTIMATE.start_main_~j~5 4), 107588#(<= ULTIMATE.start_main_~j~5 5), 107591#(<= ULTIMATE.start_main_~j~5 2), 107590#(<= ULTIMATE.start_main_~j~5 3), 107593#(<= ULTIMATE.start_main_~j~5 0), 107592#(<= ULTIMATE.start_main_~j~5 1), 107439#false, 107438#true, 107441#(<= ULTIMATE.start_main_~i~5 1), 107440#(<= ULTIMATE.start_main_~i~5 0), 107443#(<= ULTIMATE.start_main_~i~5 3), 107442#(<= ULTIMATE.start_main_~i~5 2), 107445#(<= ULTIMATE.start_main_~i~5 5), 107444#(<= ULTIMATE.start_main_~i~5 4), 107447#(<= ULTIMATE.start_main_~i~5 7), 107446#(<= ULTIMATE.start_main_~i~5 6), 107449#(<= ULTIMATE.start_main_~i~5 9), 107448#(<= ULTIMATE.start_main_~i~5 8), 107451#(<= ULTIMATE.start_main_~i~5 11), 107450#(<= ULTIMATE.start_main_~i~5 10), 107453#(<= ULTIMATE.start_main_~i~5 13), 107452#(<= ULTIMATE.start_main_~i~5 12), 107455#(<= ULTIMATE.start_main_~i~5 15), 107454#(<= ULTIMATE.start_main_~i~5 14), 107457#(<= ULTIMATE.start_main_~i~5 17), 107456#(<= ULTIMATE.start_main_~i~5 16), 107459#(<= ULTIMATE.start_main_~i~5 19), 107458#(<= ULTIMATE.start_main_~i~5 18), 107461#(<= ULTIMATE.start_main_~i~5 21), 107460#(<= ULTIMATE.start_main_~i~5 20), 107463#(<= ULTIMATE.start_main_~i~5 23), 107462#(<= ULTIMATE.start_main_~i~5 22), 107465#(<= ULTIMATE.start_main_~i~5 25), 107464#(<= ULTIMATE.start_main_~i~5 24), 107467#(<= ULTIMATE.start_main_~i~5 27), 107466#(<= ULTIMATE.start_main_~i~5 26), 107469#(<= ULTIMATE.start_main_~i~5 29), 107468#(<= ULTIMATE.start_main_~i~5 28), 107471#(<= ULTIMATE.start_main_~i~5 31), 107470#(<= ULTIMATE.start_main_~i~5 30), 107473#(<= ULTIMATE.start_main_~i~5 33), 107472#(<= ULTIMATE.start_main_~i~5 32), 107475#(<= ULTIMATE.start_main_~i~5 35), 107474#(<= ULTIMATE.start_main_~i~5 34), 107477#(<= ULTIMATE.start_main_~i~5 37), 107476#(<= ULTIMATE.start_main_~i~5 36), 107479#(<= ULTIMATE.start_main_~i~5 39), 107478#(<= ULTIMATE.start_main_~i~5 38), 107481#(<= ULTIMATE.start_main_~i~5 41), 107480#(<= ULTIMATE.start_main_~i~5 40), 107483#(<= ULTIMATE.start_main_~i~5 43), 107482#(<= ULTIMATE.start_main_~i~5 42), 107485#(<= ULTIMATE.start_main_~i~5 45), 107484#(<= ULTIMATE.start_main_~i~5 44), 107487#(<= ULTIMATE.start_main_~i~5 47), 107486#(<= ULTIMATE.start_main_~i~5 46), 107489#(<= ULTIMATE.start_main_~i~5 49), 107488#(<= ULTIMATE.start_main_~i~5 48), 107491#(<= ULTIMATE.start_main_~i~5 51), 107490#(<= ULTIMATE.start_main_~i~5 50), 107493#(<= ULTIMATE.start_main_~i~5 53), 107492#(<= ULTIMATE.start_main_~i~5 52), 107495#(<= ULTIMATE.start_main_~i~5 55), 107494#(<= ULTIMATE.start_main_~i~5 54), 107497#(<= ULTIMATE.start_main_~i~5 57), 107496#(<= ULTIMATE.start_main_~i~5 56), 107499#(<= ULTIMATE.start_main_~i~5 59), 107498#(<= ULTIMATE.start_main_~i~5 58), 107501#(<= ULTIMATE.start_main_~i~5 61), 107500#(<= ULTIMATE.start_main_~i~5 60), 107503#(<= ULTIMATE.start_main_~i~5 63), 107502#(<= ULTIMATE.start_main_~i~5 62), 107505#(<= ULTIMATE.start_main_~i~5 65), 107504#(<= ULTIMATE.start_main_~i~5 64), 107507#(<= ULTIMATE.start_main_~i~5 67), 107506#(<= ULTIMATE.start_main_~i~5 66), 107509#(<= ULTIMATE.start_main_~i~5 69), 107508#(<= ULTIMATE.start_main_~i~5 68), 107511#(<= ULTIMATE.start_main_~i~5 71), 107510#(<= ULTIMATE.start_main_~i~5 70), 107513#(<= ULTIMATE.start_main_~i~5 73), 107512#(<= ULTIMATE.start_main_~i~5 72), 107515#(<= ULTIMATE.start_main_~i~5 75), 107514#(<= ULTIMATE.start_main_~i~5 74), 107517#(<= ULTIMATE.start_main_~j~5 76), 107516#(<= ULTIMATE.start_main_~i~5 76), 107519#(<= ULTIMATE.start_main_~j~5 74), 107518#(<= ULTIMATE.start_main_~j~5 75)] [2018-07-23 13:42:05,567 INFO L134 CoverageAnalysis]: Checked inductivity of 8778 backedges. 5852 proven. 2926 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:05,567 INFO L450 AbstractCegarLoop]: Interpolant automaton has 156 states [2018-07-23 13:42:05,568 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 156 interpolants. [2018-07-23 13:42:05,570 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6161, Invalid=18019, Unknown=0, NotChecked=0, Total=24180 [2018-07-23 13:42:05,571 INFO L87 Difference]: Start difference. First operand 234 states and 235 transitions. Second operand 156 states. [2018-07-23 13:42:06,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:42:06,881 INFO L93 Difference]: Finished difference Result 392 states and 394 transitions. [2018-07-23 13:42:06,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 156 states. [2018-07-23 13:42:06,882 INFO L78 Accepts]: Start accepts. Automaton has 156 states. Word has length 233 [2018-07-23 13:42:06,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:42:06,882 INFO L225 Difference]: With dead ends: 392 [2018-07-23 13:42:06,882 INFO L226 Difference]: Without dead ends: 235 [2018-07-23 13:42:06,887 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 231 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8702 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=12321, Invalid=41735, Unknown=0, NotChecked=0, Total=54056 [2018-07-23 13:42:06,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2018-07-23 13:42:06,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 235. [2018-07-23 13:42:06,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2018-07-23 13:42:06,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 236 transitions. [2018-07-23 13:42:06,914 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 236 transitions. Word has length 233 [2018-07-23 13:42:06,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:42:06,914 INFO L471 AbstractCegarLoop]: Abstraction has 235 states and 236 transitions. [2018-07-23 13:42:06,914 INFO L472 AbstractCegarLoop]: Interpolant automaton has 156 states. [2018-07-23 13:42:06,915 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 236 transitions. [2018-07-23 13:42:06,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2018-07-23 13:42:06,915 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:42:06,915 INFO L357 BasicCegarLoop]: trace histogram [77, 77, 76, 1, 1, 1, 1] [2018-07-23 13:42:06,915 INFO L414 AbstractCegarLoop]: === Iteration 154 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:42:06,916 INFO L82 PathProgramCache]: Analyzing trace with hash -1878604798, now seen corresponding path program 152 times [2018-07-23 13:42:06,916 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:42:07,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:42:07,312 INFO L134 CoverageAnalysis]: Checked inductivity of 8855 backedges. 3003 proven. 5852 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:07,312 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:42:07,312 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [80] total 80 [2018-07-23 13:42:07,312 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:42:07,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:07,313 INFO L185 omatonBuilderFactory]: Interpolants [109057#(<= 53 ULTIMATE.start_main_~k~5), 109056#(<= 52 ULTIMATE.start_main_~k~5), 109059#(<= 55 ULTIMATE.start_main_~k~5), 109058#(<= 54 ULTIMATE.start_main_~k~5), 109061#(<= 57 ULTIMATE.start_main_~k~5), 109060#(<= 56 ULTIMATE.start_main_~k~5), 109063#(<= 59 ULTIMATE.start_main_~k~5), 109062#(<= 58 ULTIMATE.start_main_~k~5), 109065#(<= 61 ULTIMATE.start_main_~k~5), 109064#(<= 60 ULTIMATE.start_main_~k~5), 109067#(<= 63 ULTIMATE.start_main_~k~5), 109066#(<= 62 ULTIMATE.start_main_~k~5), 109069#(<= 65 ULTIMATE.start_main_~k~5), 109068#(<= 64 ULTIMATE.start_main_~k~5), 109071#(<= 67 ULTIMATE.start_main_~k~5), 109070#(<= 66 ULTIMATE.start_main_~k~5), 109073#(<= 69 ULTIMATE.start_main_~k~5), 109072#(<= 68 ULTIMATE.start_main_~k~5), 109075#(<= 71 ULTIMATE.start_main_~k~5), 109074#(<= 70 ULTIMATE.start_main_~k~5), 109077#(<= 73 ULTIMATE.start_main_~k~5), 109076#(<= 72 ULTIMATE.start_main_~k~5), 109079#(<= 75 ULTIMATE.start_main_~k~5), 109078#(<= 74 ULTIMATE.start_main_~k~5), 109081#(<= 77 ULTIMATE.start_main_~k~5), 109080#(<= 76 ULTIMATE.start_main_~k~5), 109082#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 109003#false, 109002#true, 109005#(<= 1 ULTIMATE.start_main_~k~5), 109004#(<= 0 ULTIMATE.start_main_~k~5), 109007#(<= 3 ULTIMATE.start_main_~k~5), 109006#(<= 2 ULTIMATE.start_main_~k~5), 109009#(<= 5 ULTIMATE.start_main_~k~5), 109008#(<= 4 ULTIMATE.start_main_~k~5), 109011#(<= 7 ULTIMATE.start_main_~k~5), 109010#(<= 6 ULTIMATE.start_main_~k~5), 109013#(<= 9 ULTIMATE.start_main_~k~5), 109012#(<= 8 ULTIMATE.start_main_~k~5), 109015#(<= 11 ULTIMATE.start_main_~k~5), 109014#(<= 10 ULTIMATE.start_main_~k~5), 109017#(<= 13 ULTIMATE.start_main_~k~5), 109016#(<= 12 ULTIMATE.start_main_~k~5), 109019#(<= 15 ULTIMATE.start_main_~k~5), 109018#(<= 14 ULTIMATE.start_main_~k~5), 109021#(<= 17 ULTIMATE.start_main_~k~5), 109020#(<= 16 ULTIMATE.start_main_~k~5), 109023#(<= 19 ULTIMATE.start_main_~k~5), 109022#(<= 18 ULTIMATE.start_main_~k~5), 109025#(<= 21 ULTIMATE.start_main_~k~5), 109024#(<= 20 ULTIMATE.start_main_~k~5), 109027#(<= 23 ULTIMATE.start_main_~k~5), 109026#(<= 22 ULTIMATE.start_main_~k~5), 109029#(<= 25 ULTIMATE.start_main_~k~5), 109028#(<= 24 ULTIMATE.start_main_~k~5), 109031#(<= 27 ULTIMATE.start_main_~k~5), 109030#(<= 26 ULTIMATE.start_main_~k~5), 109033#(<= 29 ULTIMATE.start_main_~k~5), 109032#(<= 28 ULTIMATE.start_main_~k~5), 109035#(<= 31 ULTIMATE.start_main_~k~5), 109034#(<= 30 ULTIMATE.start_main_~k~5), 109037#(<= 33 ULTIMATE.start_main_~k~5), 109036#(<= 32 ULTIMATE.start_main_~k~5), 109039#(<= 35 ULTIMATE.start_main_~k~5), 109038#(<= 34 ULTIMATE.start_main_~k~5), 109041#(<= 37 ULTIMATE.start_main_~k~5), 109040#(<= 36 ULTIMATE.start_main_~k~5), 109043#(<= 39 ULTIMATE.start_main_~k~5), 109042#(<= 38 ULTIMATE.start_main_~k~5), 109045#(<= 41 ULTIMATE.start_main_~k~5), 109044#(<= 40 ULTIMATE.start_main_~k~5), 109047#(<= 43 ULTIMATE.start_main_~k~5), 109046#(<= 42 ULTIMATE.start_main_~k~5), 109049#(<= 45 ULTIMATE.start_main_~k~5), 109048#(<= 44 ULTIMATE.start_main_~k~5), 109051#(<= 47 ULTIMATE.start_main_~k~5), 109050#(<= 46 ULTIMATE.start_main_~k~5), 109053#(<= 49 ULTIMATE.start_main_~k~5), 109052#(<= 48 ULTIMATE.start_main_~k~5), 109055#(<= 51 ULTIMATE.start_main_~k~5), 109054#(<= 50 ULTIMATE.start_main_~k~5)] [2018-07-23 13:42:07,313 INFO L134 CoverageAnalysis]: Checked inductivity of 8855 backedges. 3003 proven. 5852 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:07,313 INFO L450 AbstractCegarLoop]: Interpolant automaton has 81 states [2018-07-23 13:42:07,314 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2018-07-23 13:42:07,314 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3162, Invalid=3318, Unknown=0, NotChecked=0, Total=6480 [2018-07-23 13:42:07,314 INFO L87 Difference]: Start difference. First operand 235 states and 236 transitions. Second operand 81 states. [2018-07-23 13:42:07,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:42:07,607 INFO L93 Difference]: Finished difference Result 243 states and 244 transitions. [2018-07-23 13:42:07,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 158 states. [2018-07-23 13:42:07,607 INFO L78 Accepts]: Start accepts. Automaton has 81 states. Word has length 234 [2018-07-23 13:42:07,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:42:07,608 INFO L225 Difference]: With dead ends: 243 [2018-07-23 13:42:07,608 INFO L226 Difference]: Without dead ends: 241 [2018-07-23 13:42:07,610 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 157 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6006 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9480, Invalid=15642, Unknown=0, NotChecked=0, Total=25122 [2018-07-23 13:42:07,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2018-07-23 13:42:07,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 237. [2018-07-23 13:42:07,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2018-07-23 13:42:07,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 238 transitions. [2018-07-23 13:42:07,649 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 238 transitions. Word has length 234 [2018-07-23 13:42:07,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:42:07,649 INFO L471 AbstractCegarLoop]: Abstraction has 237 states and 238 transitions. [2018-07-23 13:42:07,649 INFO L472 AbstractCegarLoop]: Interpolant automaton has 81 states. [2018-07-23 13:42:07,650 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 238 transitions. [2018-07-23 13:42:07,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2018-07-23 13:42:07,651 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:42:07,651 INFO L357 BasicCegarLoop]: trace histogram [78, 77, 77, 1, 1, 1, 1] [2018-07-23 13:42:07,651 INFO L414 AbstractCegarLoop]: === Iteration 155 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:42:07,651 INFO L82 PathProgramCache]: Analyzing trace with hash -1452880534, now seen corresponding path program 153 times [2018-07-23 13:42:07,651 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:42:07,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:42:08,295 INFO L134 CoverageAnalysis]: Checked inductivity of 9009 backedges. 6006 proven. 3003 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:08,296 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:42:08,296 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [157] total 157 [2018-07-23 13:42:08,296 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:42:08,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:08,297 INFO L185 omatonBuilderFactory]: Interpolants [110337#(<= ULTIMATE.start_main_~j~5 19), 110336#(<= ULTIMATE.start_main_~j~5 20), 110339#(<= ULTIMATE.start_main_~j~5 17), 110338#(<= ULTIMATE.start_main_~j~5 18), 110341#(<= ULTIMATE.start_main_~j~5 15), 110340#(<= ULTIMATE.start_main_~j~5 16), 110343#(<= ULTIMATE.start_main_~j~5 13), 110342#(<= ULTIMATE.start_main_~j~5 14), 110345#(<= ULTIMATE.start_main_~j~5 11), 110344#(<= ULTIMATE.start_main_~j~5 12), 110347#(<= ULTIMATE.start_main_~j~5 9), 110346#(<= ULTIMATE.start_main_~j~5 10), 110349#(<= ULTIMATE.start_main_~j~5 7), 110348#(<= ULTIMATE.start_main_~j~5 8), 110351#(<= ULTIMATE.start_main_~j~5 5), 110350#(<= ULTIMATE.start_main_~j~5 6), 110353#(<= ULTIMATE.start_main_~j~5 3), 110352#(<= ULTIMATE.start_main_~j~5 4), 110355#(<= ULTIMATE.start_main_~j~5 1), 110354#(<= ULTIMATE.start_main_~j~5 2), 110356#(<= ULTIMATE.start_main_~j~5 0), 110199#true, 110201#(<= ULTIMATE.start_main_~i~5 0), 110200#false, 110203#(<= ULTIMATE.start_main_~i~5 2), 110202#(<= ULTIMATE.start_main_~i~5 1), 110205#(<= ULTIMATE.start_main_~i~5 4), 110204#(<= ULTIMATE.start_main_~i~5 3), 110207#(<= ULTIMATE.start_main_~i~5 6), 110206#(<= ULTIMATE.start_main_~i~5 5), 110209#(<= ULTIMATE.start_main_~i~5 8), 110208#(<= ULTIMATE.start_main_~i~5 7), 110211#(<= ULTIMATE.start_main_~i~5 10), 110210#(<= ULTIMATE.start_main_~i~5 9), 110213#(<= ULTIMATE.start_main_~i~5 12), 110212#(<= ULTIMATE.start_main_~i~5 11), 110215#(<= ULTIMATE.start_main_~i~5 14), 110214#(<= ULTIMATE.start_main_~i~5 13), 110217#(<= ULTIMATE.start_main_~i~5 16), 110216#(<= ULTIMATE.start_main_~i~5 15), 110219#(<= ULTIMATE.start_main_~i~5 18), 110218#(<= ULTIMATE.start_main_~i~5 17), 110221#(<= ULTIMATE.start_main_~i~5 20), 110220#(<= ULTIMATE.start_main_~i~5 19), 110223#(<= ULTIMATE.start_main_~i~5 22), 110222#(<= ULTIMATE.start_main_~i~5 21), 110225#(<= ULTIMATE.start_main_~i~5 24), 110224#(<= ULTIMATE.start_main_~i~5 23), 110227#(<= ULTIMATE.start_main_~i~5 26), 110226#(<= ULTIMATE.start_main_~i~5 25), 110229#(<= ULTIMATE.start_main_~i~5 28), 110228#(<= ULTIMATE.start_main_~i~5 27), 110231#(<= ULTIMATE.start_main_~i~5 30), 110230#(<= ULTIMATE.start_main_~i~5 29), 110233#(<= ULTIMATE.start_main_~i~5 32), 110232#(<= ULTIMATE.start_main_~i~5 31), 110235#(<= ULTIMATE.start_main_~i~5 34), 110234#(<= ULTIMATE.start_main_~i~5 33), 110237#(<= ULTIMATE.start_main_~i~5 36), 110236#(<= ULTIMATE.start_main_~i~5 35), 110239#(<= ULTIMATE.start_main_~i~5 38), 110238#(<= ULTIMATE.start_main_~i~5 37), 110241#(<= ULTIMATE.start_main_~i~5 40), 110240#(<= ULTIMATE.start_main_~i~5 39), 110243#(<= ULTIMATE.start_main_~i~5 42), 110242#(<= ULTIMATE.start_main_~i~5 41), 110245#(<= ULTIMATE.start_main_~i~5 44), 110244#(<= ULTIMATE.start_main_~i~5 43), 110247#(<= ULTIMATE.start_main_~i~5 46), 110246#(<= ULTIMATE.start_main_~i~5 45), 110249#(<= ULTIMATE.start_main_~i~5 48), 110248#(<= ULTIMATE.start_main_~i~5 47), 110251#(<= ULTIMATE.start_main_~i~5 50), 110250#(<= ULTIMATE.start_main_~i~5 49), 110253#(<= ULTIMATE.start_main_~i~5 52), 110252#(<= ULTIMATE.start_main_~i~5 51), 110255#(<= ULTIMATE.start_main_~i~5 54), 110254#(<= ULTIMATE.start_main_~i~5 53), 110257#(<= ULTIMATE.start_main_~i~5 56), 110256#(<= ULTIMATE.start_main_~i~5 55), 110259#(<= ULTIMATE.start_main_~i~5 58), 110258#(<= ULTIMATE.start_main_~i~5 57), 110261#(<= ULTIMATE.start_main_~i~5 60), 110260#(<= ULTIMATE.start_main_~i~5 59), 110263#(<= ULTIMATE.start_main_~i~5 62), 110262#(<= ULTIMATE.start_main_~i~5 61), 110265#(<= ULTIMATE.start_main_~i~5 64), 110264#(<= ULTIMATE.start_main_~i~5 63), 110267#(<= ULTIMATE.start_main_~i~5 66), 110266#(<= ULTIMATE.start_main_~i~5 65), 110269#(<= ULTIMATE.start_main_~i~5 68), 110268#(<= ULTIMATE.start_main_~i~5 67), 110271#(<= ULTIMATE.start_main_~i~5 70), 110270#(<= ULTIMATE.start_main_~i~5 69), 110273#(<= ULTIMATE.start_main_~i~5 72), 110272#(<= ULTIMATE.start_main_~i~5 71), 110275#(<= ULTIMATE.start_main_~i~5 74), 110274#(<= ULTIMATE.start_main_~i~5 73), 110277#(<= ULTIMATE.start_main_~i~5 76), 110276#(<= ULTIMATE.start_main_~i~5 75), 110279#(<= ULTIMATE.start_main_~j~5 77), 110278#(<= ULTIMATE.start_main_~i~5 77), 110281#(<= ULTIMATE.start_main_~j~5 75), 110280#(<= ULTIMATE.start_main_~j~5 76), 110283#(<= ULTIMATE.start_main_~j~5 73), 110282#(<= ULTIMATE.start_main_~j~5 74), 110285#(<= ULTIMATE.start_main_~j~5 71), 110284#(<= ULTIMATE.start_main_~j~5 72), 110287#(<= ULTIMATE.start_main_~j~5 69), 110286#(<= ULTIMATE.start_main_~j~5 70), 110289#(<= ULTIMATE.start_main_~j~5 67), 110288#(<= ULTIMATE.start_main_~j~5 68), 110291#(<= ULTIMATE.start_main_~j~5 65), 110290#(<= ULTIMATE.start_main_~j~5 66), 110293#(<= ULTIMATE.start_main_~j~5 63), 110292#(<= ULTIMATE.start_main_~j~5 64), 110295#(<= ULTIMATE.start_main_~j~5 61), 110294#(<= ULTIMATE.start_main_~j~5 62), 110297#(<= ULTIMATE.start_main_~j~5 59), 110296#(<= ULTIMATE.start_main_~j~5 60), 110299#(<= ULTIMATE.start_main_~j~5 57), 110298#(<= ULTIMATE.start_main_~j~5 58), 110301#(<= ULTIMATE.start_main_~j~5 55), 110300#(<= ULTIMATE.start_main_~j~5 56), 110303#(<= ULTIMATE.start_main_~j~5 53), 110302#(<= ULTIMATE.start_main_~j~5 54), 110305#(<= ULTIMATE.start_main_~j~5 51), 110304#(<= ULTIMATE.start_main_~j~5 52), 110307#(<= ULTIMATE.start_main_~j~5 49), 110306#(<= ULTIMATE.start_main_~j~5 50), 110309#(<= ULTIMATE.start_main_~j~5 47), 110308#(<= ULTIMATE.start_main_~j~5 48), 110311#(<= ULTIMATE.start_main_~j~5 45), 110310#(<= ULTIMATE.start_main_~j~5 46), 110313#(<= ULTIMATE.start_main_~j~5 43), 110312#(<= ULTIMATE.start_main_~j~5 44), 110315#(<= ULTIMATE.start_main_~j~5 41), 110314#(<= ULTIMATE.start_main_~j~5 42), 110317#(<= ULTIMATE.start_main_~j~5 39), 110316#(<= ULTIMATE.start_main_~j~5 40), 110319#(<= ULTIMATE.start_main_~j~5 37), 110318#(<= ULTIMATE.start_main_~j~5 38), 110321#(<= ULTIMATE.start_main_~j~5 35), 110320#(<= ULTIMATE.start_main_~j~5 36), 110323#(<= ULTIMATE.start_main_~j~5 33), 110322#(<= ULTIMATE.start_main_~j~5 34), 110325#(<= ULTIMATE.start_main_~j~5 31), 110324#(<= ULTIMATE.start_main_~j~5 32), 110327#(<= ULTIMATE.start_main_~j~5 29), 110326#(<= ULTIMATE.start_main_~j~5 30), 110329#(<= ULTIMATE.start_main_~j~5 27), 110328#(<= ULTIMATE.start_main_~j~5 28), 110331#(<= ULTIMATE.start_main_~j~5 25), 110330#(<= ULTIMATE.start_main_~j~5 26), 110333#(<= ULTIMATE.start_main_~j~5 23), 110332#(<= ULTIMATE.start_main_~j~5 24), 110335#(<= ULTIMATE.start_main_~j~5 21), 110334#(<= ULTIMATE.start_main_~j~5 22)] [2018-07-23 13:42:08,298 INFO L134 CoverageAnalysis]: Checked inductivity of 9009 backedges. 6006 proven. 3003 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:08,298 INFO L450 AbstractCegarLoop]: Interpolant automaton has 158 states [2018-07-23 13:42:08,299 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 158 interpolants. [2018-07-23 13:42:08,301 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6319, Invalid=18487, Unknown=0, NotChecked=0, Total=24806 [2018-07-23 13:42:08,301 INFO L87 Difference]: Start difference. First operand 237 states and 238 transitions. Second operand 158 states. [2018-07-23 13:42:09,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:42:09,654 INFO L93 Difference]: Finished difference Result 397 states and 399 transitions. [2018-07-23 13:42:09,654 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 158 states. [2018-07-23 13:42:09,654 INFO L78 Accepts]: Start accepts. Automaton has 158 states. Word has length 236 [2018-07-23 13:42:09,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:42:09,655 INFO L225 Difference]: With dead ends: 397 [2018-07-23 13:42:09,655 INFO L226 Difference]: Without dead ends: 238 [2018-07-23 13:42:09,660 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 234 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8932 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=12637, Invalid=42823, Unknown=0, NotChecked=0, Total=55460 [2018-07-23 13:42:09,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2018-07-23 13:42:09,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2018-07-23 13:42:09,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2018-07-23 13:42:09,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 239 transitions. [2018-07-23 13:42:09,697 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 239 transitions. Word has length 236 [2018-07-23 13:42:09,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:42:09,697 INFO L471 AbstractCegarLoop]: Abstraction has 238 states and 239 transitions. [2018-07-23 13:42:09,697 INFO L472 AbstractCegarLoop]: Interpolant automaton has 158 states. [2018-07-23 13:42:09,697 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 239 transitions. [2018-07-23 13:42:09,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2018-07-23 13:42:09,698 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:42:09,698 INFO L357 BasicCegarLoop]: trace histogram [78, 78, 77, 1, 1, 1, 1] [2018-07-23 13:42:09,698 INFO L414 AbstractCegarLoop]: === Iteration 156 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:42:09,698 INFO L82 PathProgramCache]: Analyzing trace with hash 225890147, now seen corresponding path program 154 times [2018-07-23 13:42:09,698 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:42:09,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:42:10,026 INFO L134 CoverageAnalysis]: Checked inductivity of 9087 backedges. 3081 proven. 6006 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:10,027 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:42:10,027 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [81] total 81 [2018-07-23 13:42:10,027 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:42:10,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:10,028 INFO L185 omatonBuilderFactory]: Interpolants [111783#true, 111785#(<= 0 ULTIMATE.start_main_~k~5), 111784#false, 111787#(<= 2 ULTIMATE.start_main_~k~5), 111786#(<= 1 ULTIMATE.start_main_~k~5), 111789#(<= 4 ULTIMATE.start_main_~k~5), 111788#(<= 3 ULTIMATE.start_main_~k~5), 111791#(<= 6 ULTIMATE.start_main_~k~5), 111790#(<= 5 ULTIMATE.start_main_~k~5), 111793#(<= 8 ULTIMATE.start_main_~k~5), 111792#(<= 7 ULTIMATE.start_main_~k~5), 111795#(<= 10 ULTIMATE.start_main_~k~5), 111794#(<= 9 ULTIMATE.start_main_~k~5), 111797#(<= 12 ULTIMATE.start_main_~k~5), 111796#(<= 11 ULTIMATE.start_main_~k~5), 111799#(<= 14 ULTIMATE.start_main_~k~5), 111798#(<= 13 ULTIMATE.start_main_~k~5), 111801#(<= 16 ULTIMATE.start_main_~k~5), 111800#(<= 15 ULTIMATE.start_main_~k~5), 111803#(<= 18 ULTIMATE.start_main_~k~5), 111802#(<= 17 ULTIMATE.start_main_~k~5), 111805#(<= 20 ULTIMATE.start_main_~k~5), 111804#(<= 19 ULTIMATE.start_main_~k~5), 111807#(<= 22 ULTIMATE.start_main_~k~5), 111806#(<= 21 ULTIMATE.start_main_~k~5), 111809#(<= 24 ULTIMATE.start_main_~k~5), 111808#(<= 23 ULTIMATE.start_main_~k~5), 111811#(<= 26 ULTIMATE.start_main_~k~5), 111810#(<= 25 ULTIMATE.start_main_~k~5), 111813#(<= 28 ULTIMATE.start_main_~k~5), 111812#(<= 27 ULTIMATE.start_main_~k~5), 111815#(<= 30 ULTIMATE.start_main_~k~5), 111814#(<= 29 ULTIMATE.start_main_~k~5), 111817#(<= 32 ULTIMATE.start_main_~k~5), 111816#(<= 31 ULTIMATE.start_main_~k~5), 111819#(<= 34 ULTIMATE.start_main_~k~5), 111818#(<= 33 ULTIMATE.start_main_~k~5), 111821#(<= 36 ULTIMATE.start_main_~k~5), 111820#(<= 35 ULTIMATE.start_main_~k~5), 111823#(<= 38 ULTIMATE.start_main_~k~5), 111822#(<= 37 ULTIMATE.start_main_~k~5), 111825#(<= 40 ULTIMATE.start_main_~k~5), 111824#(<= 39 ULTIMATE.start_main_~k~5), 111827#(<= 42 ULTIMATE.start_main_~k~5), 111826#(<= 41 ULTIMATE.start_main_~k~5), 111829#(<= 44 ULTIMATE.start_main_~k~5), 111828#(<= 43 ULTIMATE.start_main_~k~5), 111831#(<= 46 ULTIMATE.start_main_~k~5), 111830#(<= 45 ULTIMATE.start_main_~k~5), 111833#(<= 48 ULTIMATE.start_main_~k~5), 111832#(<= 47 ULTIMATE.start_main_~k~5), 111835#(<= 50 ULTIMATE.start_main_~k~5), 111834#(<= 49 ULTIMATE.start_main_~k~5), 111837#(<= 52 ULTIMATE.start_main_~k~5), 111836#(<= 51 ULTIMATE.start_main_~k~5), 111839#(<= 54 ULTIMATE.start_main_~k~5), 111838#(<= 53 ULTIMATE.start_main_~k~5), 111841#(<= 56 ULTIMATE.start_main_~k~5), 111840#(<= 55 ULTIMATE.start_main_~k~5), 111843#(<= 58 ULTIMATE.start_main_~k~5), 111842#(<= 57 ULTIMATE.start_main_~k~5), 111845#(<= 60 ULTIMATE.start_main_~k~5), 111844#(<= 59 ULTIMATE.start_main_~k~5), 111847#(<= 62 ULTIMATE.start_main_~k~5), 111846#(<= 61 ULTIMATE.start_main_~k~5), 111849#(<= 64 ULTIMATE.start_main_~k~5), 111848#(<= 63 ULTIMATE.start_main_~k~5), 111851#(<= 66 ULTIMATE.start_main_~k~5), 111850#(<= 65 ULTIMATE.start_main_~k~5), 111853#(<= 68 ULTIMATE.start_main_~k~5), 111852#(<= 67 ULTIMATE.start_main_~k~5), 111855#(<= 70 ULTIMATE.start_main_~k~5), 111854#(<= 69 ULTIMATE.start_main_~k~5), 111857#(<= 72 ULTIMATE.start_main_~k~5), 111856#(<= 71 ULTIMATE.start_main_~k~5), 111859#(<= 74 ULTIMATE.start_main_~k~5), 111858#(<= 73 ULTIMATE.start_main_~k~5), 111861#(<= 76 ULTIMATE.start_main_~k~5), 111860#(<= 75 ULTIMATE.start_main_~k~5), 111863#(<= 78 ULTIMATE.start_main_~k~5), 111862#(<= 77 ULTIMATE.start_main_~k~5), 111864#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond)] [2018-07-23 13:42:10,028 INFO L134 CoverageAnalysis]: Checked inductivity of 9087 backedges. 3081 proven. 6006 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:10,028 INFO L450 AbstractCegarLoop]: Interpolant automaton has 82 states [2018-07-23 13:42:10,029 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2018-07-23 13:42:10,029 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3242, Invalid=3400, Unknown=0, NotChecked=0, Total=6642 [2018-07-23 13:42:10,029 INFO L87 Difference]: Start difference. First operand 238 states and 239 transitions. Second operand 82 states. [2018-07-23 13:42:10,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:42:10,343 INFO L93 Difference]: Finished difference Result 246 states and 247 transitions. [2018-07-23 13:42:10,343 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 160 states. [2018-07-23 13:42:10,343 INFO L78 Accepts]: Start accepts. Automaton has 82 states. Word has length 237 [2018-07-23 13:42:10,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:42:10,344 INFO L225 Difference]: With dead ends: 246 [2018-07-23 13:42:10,344 INFO L226 Difference]: Without dead ends: 244 [2018-07-23 13:42:10,346 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6162 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9720, Invalid=16040, Unknown=0, NotChecked=0, Total=25760 [2018-07-23 13:42:10,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2018-07-23 13:42:10,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 240. [2018-07-23 13:42:10,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2018-07-23 13:42:10,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 241 transitions. [2018-07-23 13:42:10,374 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 241 transitions. Word has length 237 [2018-07-23 13:42:10,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:42:10,374 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 241 transitions. [2018-07-23 13:42:10,374 INFO L472 AbstractCegarLoop]: Interpolant automaton has 82 states. [2018-07-23 13:42:10,374 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 241 transitions. [2018-07-23 13:42:10,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2018-07-23 13:42:10,375 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:42:10,375 INFO L357 BasicCegarLoop]: trace histogram [79, 78, 78, 1, 1, 1, 1] [2018-07-23 13:42:10,375 INFO L414 AbstractCegarLoop]: === Iteration 157 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:42:10,375 INFO L82 PathProgramCache]: Analyzing trace with hash -1962834805, now seen corresponding path program 155 times [2018-07-23 13:42:10,375 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:42:10,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:42:10,933 INFO L134 CoverageAnalysis]: Checked inductivity of 9243 backedges. 6162 proven. 3081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:10,934 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:42:10,934 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [159] total 159 [2018-07-23 13:42:10,934 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:42:10,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:10,935 INFO L185 omatonBuilderFactory]: Interpolants [113153#(<= ULTIMATE.start_main_~j~5 1), 113152#(<= ULTIMATE.start_main_~j~5 2), 113154#(<= ULTIMATE.start_main_~j~5 0), 112995#true, 112997#(<= ULTIMATE.start_main_~i~5 0), 112996#false, 112999#(<= ULTIMATE.start_main_~i~5 2), 112998#(<= ULTIMATE.start_main_~i~5 1), 113001#(<= ULTIMATE.start_main_~i~5 4), 113000#(<= ULTIMATE.start_main_~i~5 3), 113003#(<= ULTIMATE.start_main_~i~5 6), 113002#(<= ULTIMATE.start_main_~i~5 5), 113005#(<= ULTIMATE.start_main_~i~5 8), 113004#(<= ULTIMATE.start_main_~i~5 7), 113007#(<= ULTIMATE.start_main_~i~5 10), 113006#(<= ULTIMATE.start_main_~i~5 9), 113009#(<= ULTIMATE.start_main_~i~5 12), 113008#(<= ULTIMATE.start_main_~i~5 11), 113011#(<= ULTIMATE.start_main_~i~5 14), 113010#(<= ULTIMATE.start_main_~i~5 13), 113013#(<= ULTIMATE.start_main_~i~5 16), 113012#(<= ULTIMATE.start_main_~i~5 15), 113015#(<= ULTIMATE.start_main_~i~5 18), 113014#(<= ULTIMATE.start_main_~i~5 17), 113017#(<= ULTIMATE.start_main_~i~5 20), 113016#(<= ULTIMATE.start_main_~i~5 19), 113019#(<= ULTIMATE.start_main_~i~5 22), 113018#(<= ULTIMATE.start_main_~i~5 21), 113021#(<= ULTIMATE.start_main_~i~5 24), 113020#(<= ULTIMATE.start_main_~i~5 23), 113023#(<= ULTIMATE.start_main_~i~5 26), 113022#(<= ULTIMATE.start_main_~i~5 25), 113025#(<= ULTIMATE.start_main_~i~5 28), 113024#(<= ULTIMATE.start_main_~i~5 27), 113027#(<= ULTIMATE.start_main_~i~5 30), 113026#(<= ULTIMATE.start_main_~i~5 29), 113029#(<= ULTIMATE.start_main_~i~5 32), 113028#(<= ULTIMATE.start_main_~i~5 31), 113031#(<= ULTIMATE.start_main_~i~5 34), 113030#(<= ULTIMATE.start_main_~i~5 33), 113033#(<= ULTIMATE.start_main_~i~5 36), 113032#(<= ULTIMATE.start_main_~i~5 35), 113035#(<= ULTIMATE.start_main_~i~5 38), 113034#(<= ULTIMATE.start_main_~i~5 37), 113037#(<= ULTIMATE.start_main_~i~5 40), 113036#(<= ULTIMATE.start_main_~i~5 39), 113039#(<= ULTIMATE.start_main_~i~5 42), 113038#(<= ULTIMATE.start_main_~i~5 41), 113041#(<= ULTIMATE.start_main_~i~5 44), 113040#(<= ULTIMATE.start_main_~i~5 43), 113043#(<= ULTIMATE.start_main_~i~5 46), 113042#(<= ULTIMATE.start_main_~i~5 45), 113045#(<= ULTIMATE.start_main_~i~5 48), 113044#(<= ULTIMATE.start_main_~i~5 47), 113047#(<= ULTIMATE.start_main_~i~5 50), 113046#(<= ULTIMATE.start_main_~i~5 49), 113049#(<= ULTIMATE.start_main_~i~5 52), 113048#(<= ULTIMATE.start_main_~i~5 51), 113051#(<= ULTIMATE.start_main_~i~5 54), 113050#(<= ULTIMATE.start_main_~i~5 53), 113053#(<= ULTIMATE.start_main_~i~5 56), 113052#(<= ULTIMATE.start_main_~i~5 55), 113055#(<= ULTIMATE.start_main_~i~5 58), 113054#(<= ULTIMATE.start_main_~i~5 57), 113057#(<= ULTIMATE.start_main_~i~5 60), 113056#(<= ULTIMATE.start_main_~i~5 59), 113059#(<= ULTIMATE.start_main_~i~5 62), 113058#(<= ULTIMATE.start_main_~i~5 61), 113061#(<= ULTIMATE.start_main_~i~5 64), 113060#(<= ULTIMATE.start_main_~i~5 63), 113063#(<= ULTIMATE.start_main_~i~5 66), 113062#(<= ULTIMATE.start_main_~i~5 65), 113065#(<= ULTIMATE.start_main_~i~5 68), 113064#(<= ULTIMATE.start_main_~i~5 67), 113067#(<= ULTIMATE.start_main_~i~5 70), 113066#(<= ULTIMATE.start_main_~i~5 69), 113069#(<= ULTIMATE.start_main_~i~5 72), 113068#(<= ULTIMATE.start_main_~i~5 71), 113071#(<= ULTIMATE.start_main_~i~5 74), 113070#(<= ULTIMATE.start_main_~i~5 73), 113073#(<= ULTIMATE.start_main_~i~5 76), 113072#(<= ULTIMATE.start_main_~i~5 75), 113075#(<= ULTIMATE.start_main_~i~5 78), 113074#(<= ULTIMATE.start_main_~i~5 77), 113077#(<= ULTIMATE.start_main_~j~5 77), 113076#(<= ULTIMATE.start_main_~j~5 78), 113079#(<= ULTIMATE.start_main_~j~5 75), 113078#(<= ULTIMATE.start_main_~j~5 76), 113081#(<= ULTIMATE.start_main_~j~5 73), 113080#(<= ULTIMATE.start_main_~j~5 74), 113083#(<= ULTIMATE.start_main_~j~5 71), 113082#(<= ULTIMATE.start_main_~j~5 72), 113085#(<= ULTIMATE.start_main_~j~5 69), 113084#(<= ULTIMATE.start_main_~j~5 70), 113087#(<= ULTIMATE.start_main_~j~5 67), 113086#(<= ULTIMATE.start_main_~j~5 68), 113089#(<= ULTIMATE.start_main_~j~5 65), 113088#(<= ULTIMATE.start_main_~j~5 66), 113091#(<= ULTIMATE.start_main_~j~5 63), 113090#(<= ULTIMATE.start_main_~j~5 64), 113093#(<= ULTIMATE.start_main_~j~5 61), 113092#(<= ULTIMATE.start_main_~j~5 62), 113095#(<= ULTIMATE.start_main_~j~5 59), 113094#(<= ULTIMATE.start_main_~j~5 60), 113097#(<= ULTIMATE.start_main_~j~5 57), 113096#(<= ULTIMATE.start_main_~j~5 58), 113099#(<= ULTIMATE.start_main_~j~5 55), 113098#(<= ULTIMATE.start_main_~j~5 56), 113101#(<= ULTIMATE.start_main_~j~5 53), 113100#(<= ULTIMATE.start_main_~j~5 54), 113103#(<= ULTIMATE.start_main_~j~5 51), 113102#(<= ULTIMATE.start_main_~j~5 52), 113105#(<= ULTIMATE.start_main_~j~5 49), 113104#(<= ULTIMATE.start_main_~j~5 50), 113107#(<= ULTIMATE.start_main_~j~5 47), 113106#(<= ULTIMATE.start_main_~j~5 48), 113109#(<= ULTIMATE.start_main_~j~5 45), 113108#(<= ULTIMATE.start_main_~j~5 46), 113111#(<= ULTIMATE.start_main_~j~5 43), 113110#(<= ULTIMATE.start_main_~j~5 44), 113113#(<= ULTIMATE.start_main_~j~5 41), 113112#(<= ULTIMATE.start_main_~j~5 42), 113115#(<= ULTIMATE.start_main_~j~5 39), 113114#(<= ULTIMATE.start_main_~j~5 40), 113117#(<= ULTIMATE.start_main_~j~5 37), 113116#(<= ULTIMATE.start_main_~j~5 38), 113119#(<= ULTIMATE.start_main_~j~5 35), 113118#(<= ULTIMATE.start_main_~j~5 36), 113121#(<= ULTIMATE.start_main_~j~5 33), 113120#(<= ULTIMATE.start_main_~j~5 34), 113123#(<= ULTIMATE.start_main_~j~5 31), 113122#(<= ULTIMATE.start_main_~j~5 32), 113125#(<= ULTIMATE.start_main_~j~5 29), 113124#(<= ULTIMATE.start_main_~j~5 30), 113127#(<= ULTIMATE.start_main_~j~5 27), 113126#(<= ULTIMATE.start_main_~j~5 28), 113129#(<= ULTIMATE.start_main_~j~5 25), 113128#(<= ULTIMATE.start_main_~j~5 26), 113131#(<= ULTIMATE.start_main_~j~5 23), 113130#(<= ULTIMATE.start_main_~j~5 24), 113133#(<= ULTIMATE.start_main_~j~5 21), 113132#(<= ULTIMATE.start_main_~j~5 22), 113135#(<= ULTIMATE.start_main_~j~5 19), 113134#(<= ULTIMATE.start_main_~j~5 20), 113137#(<= ULTIMATE.start_main_~j~5 17), 113136#(<= ULTIMATE.start_main_~j~5 18), 113139#(<= ULTIMATE.start_main_~j~5 15), 113138#(<= ULTIMATE.start_main_~j~5 16), 113141#(<= ULTIMATE.start_main_~j~5 13), 113140#(<= ULTIMATE.start_main_~j~5 14), 113143#(<= ULTIMATE.start_main_~j~5 11), 113142#(<= ULTIMATE.start_main_~j~5 12), 113145#(<= ULTIMATE.start_main_~j~5 9), 113144#(<= ULTIMATE.start_main_~j~5 10), 113147#(<= ULTIMATE.start_main_~j~5 7), 113146#(<= ULTIMATE.start_main_~j~5 8), 113149#(<= ULTIMATE.start_main_~j~5 5), 113148#(<= ULTIMATE.start_main_~j~5 6), 113151#(<= ULTIMATE.start_main_~j~5 3), 113150#(<= ULTIMATE.start_main_~j~5 4)] [2018-07-23 13:42:10,935 INFO L134 CoverageAnalysis]: Checked inductivity of 9243 backedges. 6162 proven. 3081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:10,935 INFO L450 AbstractCegarLoop]: Interpolant automaton has 160 states [2018-07-23 13:42:10,936 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 160 interpolants. [2018-07-23 13:42:10,938 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6479, Invalid=18961, Unknown=0, NotChecked=0, Total=25440 [2018-07-23 13:42:10,938 INFO L87 Difference]: Start difference. First operand 240 states and 241 transitions. Second operand 160 states. [2018-07-23 13:42:12,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:42:12,197 INFO L93 Difference]: Finished difference Result 402 states and 404 transitions. [2018-07-23 13:42:12,197 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 160 states. [2018-07-23 13:42:12,197 INFO L78 Accepts]: Start accepts. Automaton has 160 states. Word has length 239 [2018-07-23 13:42:12,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:42:12,198 INFO L225 Difference]: With dead ends: 402 [2018-07-23 13:42:12,198 INFO L226 Difference]: Without dead ends: 241 [2018-07-23 13:42:12,200 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 237 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9165 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=12957, Invalid=43925, Unknown=0, NotChecked=0, Total=56882 [2018-07-23 13:42:12,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2018-07-23 13:42:12,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 241. [2018-07-23 13:42:12,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2018-07-23 13:42:12,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 242 transitions. [2018-07-23 13:42:12,225 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 242 transitions. Word has length 239 [2018-07-23 13:42:12,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:42:12,225 INFO L471 AbstractCegarLoop]: Abstraction has 241 states and 242 transitions. [2018-07-23 13:42:12,225 INFO L472 AbstractCegarLoop]: Interpolant automaton has 160 states. [2018-07-23 13:42:12,225 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 242 transitions. [2018-07-23 13:42:12,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2018-07-23 13:42:12,226 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:42:12,226 INFO L357 BasicCegarLoop]: trace histogram [79, 79, 78, 1, 1, 1, 1] [2018-07-23 13:42:12,226 INFO L414 AbstractCegarLoop]: === Iteration 158 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:42:12,226 INFO L82 PathProgramCache]: Analyzing trace with hash -304671758, now seen corresponding path program 156 times [2018-07-23 13:42:12,227 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:42:12,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:42:12,553 INFO L134 CoverageAnalysis]: Checked inductivity of 9322 backedges. 3160 proven. 6162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:12,554 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:42:12,554 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [82] total 82 [2018-07-23 13:42:12,554 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:42:12,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:12,554 INFO L185 omatonBuilderFactory]: Interpolants [114599#true, 114601#(<= 0 ULTIMATE.start_main_~k~5), 114600#false, 114603#(<= 2 ULTIMATE.start_main_~k~5), 114602#(<= 1 ULTIMATE.start_main_~k~5), 114605#(<= 4 ULTIMATE.start_main_~k~5), 114604#(<= 3 ULTIMATE.start_main_~k~5), 114607#(<= 6 ULTIMATE.start_main_~k~5), 114606#(<= 5 ULTIMATE.start_main_~k~5), 114609#(<= 8 ULTIMATE.start_main_~k~5), 114608#(<= 7 ULTIMATE.start_main_~k~5), 114611#(<= 10 ULTIMATE.start_main_~k~5), 114610#(<= 9 ULTIMATE.start_main_~k~5), 114613#(<= 12 ULTIMATE.start_main_~k~5), 114612#(<= 11 ULTIMATE.start_main_~k~5), 114615#(<= 14 ULTIMATE.start_main_~k~5), 114614#(<= 13 ULTIMATE.start_main_~k~5), 114617#(<= 16 ULTIMATE.start_main_~k~5), 114616#(<= 15 ULTIMATE.start_main_~k~5), 114619#(<= 18 ULTIMATE.start_main_~k~5), 114618#(<= 17 ULTIMATE.start_main_~k~5), 114621#(<= 20 ULTIMATE.start_main_~k~5), 114620#(<= 19 ULTIMATE.start_main_~k~5), 114623#(<= 22 ULTIMATE.start_main_~k~5), 114622#(<= 21 ULTIMATE.start_main_~k~5), 114625#(<= 24 ULTIMATE.start_main_~k~5), 114624#(<= 23 ULTIMATE.start_main_~k~5), 114627#(<= 26 ULTIMATE.start_main_~k~5), 114626#(<= 25 ULTIMATE.start_main_~k~5), 114629#(<= 28 ULTIMATE.start_main_~k~5), 114628#(<= 27 ULTIMATE.start_main_~k~5), 114631#(<= 30 ULTIMATE.start_main_~k~5), 114630#(<= 29 ULTIMATE.start_main_~k~5), 114633#(<= 32 ULTIMATE.start_main_~k~5), 114632#(<= 31 ULTIMATE.start_main_~k~5), 114635#(<= 34 ULTIMATE.start_main_~k~5), 114634#(<= 33 ULTIMATE.start_main_~k~5), 114637#(<= 36 ULTIMATE.start_main_~k~5), 114636#(<= 35 ULTIMATE.start_main_~k~5), 114639#(<= 38 ULTIMATE.start_main_~k~5), 114638#(<= 37 ULTIMATE.start_main_~k~5), 114641#(<= 40 ULTIMATE.start_main_~k~5), 114640#(<= 39 ULTIMATE.start_main_~k~5), 114643#(<= 42 ULTIMATE.start_main_~k~5), 114642#(<= 41 ULTIMATE.start_main_~k~5), 114645#(<= 44 ULTIMATE.start_main_~k~5), 114644#(<= 43 ULTIMATE.start_main_~k~5), 114647#(<= 46 ULTIMATE.start_main_~k~5), 114646#(<= 45 ULTIMATE.start_main_~k~5), 114649#(<= 48 ULTIMATE.start_main_~k~5), 114648#(<= 47 ULTIMATE.start_main_~k~5), 114651#(<= 50 ULTIMATE.start_main_~k~5), 114650#(<= 49 ULTIMATE.start_main_~k~5), 114653#(<= 52 ULTIMATE.start_main_~k~5), 114652#(<= 51 ULTIMATE.start_main_~k~5), 114655#(<= 54 ULTIMATE.start_main_~k~5), 114654#(<= 53 ULTIMATE.start_main_~k~5), 114657#(<= 56 ULTIMATE.start_main_~k~5), 114656#(<= 55 ULTIMATE.start_main_~k~5), 114659#(<= 58 ULTIMATE.start_main_~k~5), 114658#(<= 57 ULTIMATE.start_main_~k~5), 114661#(<= 60 ULTIMATE.start_main_~k~5), 114660#(<= 59 ULTIMATE.start_main_~k~5), 114663#(<= 62 ULTIMATE.start_main_~k~5), 114662#(<= 61 ULTIMATE.start_main_~k~5), 114665#(<= 64 ULTIMATE.start_main_~k~5), 114664#(<= 63 ULTIMATE.start_main_~k~5), 114667#(<= 66 ULTIMATE.start_main_~k~5), 114666#(<= 65 ULTIMATE.start_main_~k~5), 114669#(<= 68 ULTIMATE.start_main_~k~5), 114668#(<= 67 ULTIMATE.start_main_~k~5), 114671#(<= 70 ULTIMATE.start_main_~k~5), 114670#(<= 69 ULTIMATE.start_main_~k~5), 114673#(<= 72 ULTIMATE.start_main_~k~5), 114672#(<= 71 ULTIMATE.start_main_~k~5), 114675#(<= 74 ULTIMATE.start_main_~k~5), 114674#(<= 73 ULTIMATE.start_main_~k~5), 114677#(<= 76 ULTIMATE.start_main_~k~5), 114676#(<= 75 ULTIMATE.start_main_~k~5), 114679#(<= 78 ULTIMATE.start_main_~k~5), 114678#(<= 77 ULTIMATE.start_main_~k~5), 114681#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 114680#(<= 79 ULTIMATE.start_main_~k~5)] [2018-07-23 13:42:12,555 INFO L134 CoverageAnalysis]: Checked inductivity of 9322 backedges. 3160 proven. 6162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:12,555 INFO L450 AbstractCegarLoop]: Interpolant automaton has 83 states [2018-07-23 13:42:12,555 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2018-07-23 13:42:12,556 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3323, Invalid=3483, Unknown=0, NotChecked=0, Total=6806 [2018-07-23 13:42:12,556 INFO L87 Difference]: Start difference. First operand 241 states and 242 transitions. Second operand 83 states. [2018-07-23 13:42:12,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:42:12,840 INFO L93 Difference]: Finished difference Result 249 states and 250 transitions. [2018-07-23 13:42:12,840 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 162 states. [2018-07-23 13:42:12,840 INFO L78 Accepts]: Start accepts. Automaton has 83 states. Word has length 240 [2018-07-23 13:42:12,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:42:12,841 INFO L225 Difference]: With dead ends: 249 [2018-07-23 13:42:12,841 INFO L226 Difference]: Without dead ends: 247 [2018-07-23 13:42:12,843 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6320 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9963, Invalid=16443, Unknown=0, NotChecked=0, Total=26406 [2018-07-23 13:42:12,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2018-07-23 13:42:12,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 243. [2018-07-23 13:42:12,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2018-07-23 13:42:12,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 244 transitions. [2018-07-23 13:42:12,872 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 244 transitions. Word has length 240 [2018-07-23 13:42:12,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:42:12,873 INFO L471 AbstractCegarLoop]: Abstraction has 243 states and 244 transitions. [2018-07-23 13:42:12,873 INFO L472 AbstractCegarLoop]: Interpolant automaton has 83 states. [2018-07-23 13:42:12,873 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 244 transitions. [2018-07-23 13:42:12,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2018-07-23 13:42:12,873 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:42:12,873 INFO L357 BasicCegarLoop]: trace histogram [80, 79, 79, 1, 1, 1, 1] [2018-07-23 13:42:12,874 INFO L414 AbstractCegarLoop]: === Iteration 159 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:42:12,874 INFO L82 PathProgramCache]: Analyzing trace with hash -731717286, now seen corresponding path program 157 times [2018-07-23 13:42:12,874 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:42:12,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:42:13,493 INFO L134 CoverageAnalysis]: Checked inductivity of 9480 backedges. 6320 proven. 3160 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:13,493 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:42:13,494 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [161] total 161 [2018-07-23 13:42:13,494 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:42:13,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:13,494 INFO L185 omatonBuilderFactory]: Interpolants [115969#(<= ULTIMATE.start_main_~j~5 18), 115968#(<= ULTIMATE.start_main_~j~5 19), 115971#(<= ULTIMATE.start_main_~j~5 16), 115970#(<= ULTIMATE.start_main_~j~5 17), 115973#(<= ULTIMATE.start_main_~j~5 14), 115972#(<= ULTIMATE.start_main_~j~5 15), 115975#(<= ULTIMATE.start_main_~j~5 12), 115974#(<= ULTIMATE.start_main_~j~5 13), 115977#(<= ULTIMATE.start_main_~j~5 10), 115976#(<= ULTIMATE.start_main_~j~5 11), 115979#(<= ULTIMATE.start_main_~j~5 8), 115978#(<= ULTIMATE.start_main_~j~5 9), 115981#(<= ULTIMATE.start_main_~j~5 6), 115980#(<= ULTIMATE.start_main_~j~5 7), 115983#(<= ULTIMATE.start_main_~j~5 4), 115982#(<= ULTIMATE.start_main_~j~5 5), 115985#(<= ULTIMATE.start_main_~j~5 2), 115984#(<= ULTIMATE.start_main_~j~5 3), 115987#(<= ULTIMATE.start_main_~j~5 0), 115986#(<= ULTIMATE.start_main_~j~5 1), 115827#false, 115826#true, 115829#(<= ULTIMATE.start_main_~i~5 1), 115828#(<= ULTIMATE.start_main_~i~5 0), 115831#(<= ULTIMATE.start_main_~i~5 3), 115830#(<= ULTIMATE.start_main_~i~5 2), 115833#(<= ULTIMATE.start_main_~i~5 5), 115832#(<= ULTIMATE.start_main_~i~5 4), 115835#(<= ULTIMATE.start_main_~i~5 7), 115834#(<= ULTIMATE.start_main_~i~5 6), 115837#(<= ULTIMATE.start_main_~i~5 9), 115836#(<= ULTIMATE.start_main_~i~5 8), 115839#(<= ULTIMATE.start_main_~i~5 11), 115838#(<= ULTIMATE.start_main_~i~5 10), 115841#(<= ULTIMATE.start_main_~i~5 13), 115840#(<= ULTIMATE.start_main_~i~5 12), 115843#(<= ULTIMATE.start_main_~i~5 15), 115842#(<= ULTIMATE.start_main_~i~5 14), 115845#(<= ULTIMATE.start_main_~i~5 17), 115844#(<= ULTIMATE.start_main_~i~5 16), 115847#(<= ULTIMATE.start_main_~i~5 19), 115846#(<= ULTIMATE.start_main_~i~5 18), 115849#(<= ULTIMATE.start_main_~i~5 21), 115848#(<= ULTIMATE.start_main_~i~5 20), 115851#(<= ULTIMATE.start_main_~i~5 23), 115850#(<= ULTIMATE.start_main_~i~5 22), 115853#(<= ULTIMATE.start_main_~i~5 25), 115852#(<= ULTIMATE.start_main_~i~5 24), 115855#(<= ULTIMATE.start_main_~i~5 27), 115854#(<= ULTIMATE.start_main_~i~5 26), 115857#(<= ULTIMATE.start_main_~i~5 29), 115856#(<= ULTIMATE.start_main_~i~5 28), 115859#(<= ULTIMATE.start_main_~i~5 31), 115858#(<= ULTIMATE.start_main_~i~5 30), 115861#(<= ULTIMATE.start_main_~i~5 33), 115860#(<= ULTIMATE.start_main_~i~5 32), 115863#(<= ULTIMATE.start_main_~i~5 35), 115862#(<= ULTIMATE.start_main_~i~5 34), 115865#(<= ULTIMATE.start_main_~i~5 37), 115864#(<= ULTIMATE.start_main_~i~5 36), 115867#(<= ULTIMATE.start_main_~i~5 39), 115866#(<= ULTIMATE.start_main_~i~5 38), 115869#(<= ULTIMATE.start_main_~i~5 41), 115868#(<= ULTIMATE.start_main_~i~5 40), 115871#(<= ULTIMATE.start_main_~i~5 43), 115870#(<= ULTIMATE.start_main_~i~5 42), 115873#(<= ULTIMATE.start_main_~i~5 45), 115872#(<= ULTIMATE.start_main_~i~5 44), 115875#(<= ULTIMATE.start_main_~i~5 47), 115874#(<= ULTIMATE.start_main_~i~5 46), 115877#(<= ULTIMATE.start_main_~i~5 49), 115876#(<= ULTIMATE.start_main_~i~5 48), 115879#(<= ULTIMATE.start_main_~i~5 51), 115878#(<= ULTIMATE.start_main_~i~5 50), 115881#(<= ULTIMATE.start_main_~i~5 53), 115880#(<= ULTIMATE.start_main_~i~5 52), 115883#(<= ULTIMATE.start_main_~i~5 55), 115882#(<= ULTIMATE.start_main_~i~5 54), 115885#(<= ULTIMATE.start_main_~i~5 57), 115884#(<= ULTIMATE.start_main_~i~5 56), 115887#(<= ULTIMATE.start_main_~i~5 59), 115886#(<= ULTIMATE.start_main_~i~5 58), 115889#(<= ULTIMATE.start_main_~i~5 61), 115888#(<= ULTIMATE.start_main_~i~5 60), 115891#(<= ULTIMATE.start_main_~i~5 63), 115890#(<= ULTIMATE.start_main_~i~5 62), 115893#(<= ULTIMATE.start_main_~i~5 65), 115892#(<= ULTIMATE.start_main_~i~5 64), 115895#(<= ULTIMATE.start_main_~i~5 67), 115894#(<= ULTIMATE.start_main_~i~5 66), 115897#(<= ULTIMATE.start_main_~i~5 69), 115896#(<= ULTIMATE.start_main_~i~5 68), 115899#(<= ULTIMATE.start_main_~i~5 71), 115898#(<= ULTIMATE.start_main_~i~5 70), 115901#(<= ULTIMATE.start_main_~i~5 73), 115900#(<= ULTIMATE.start_main_~i~5 72), 115903#(<= ULTIMATE.start_main_~i~5 75), 115902#(<= ULTIMATE.start_main_~i~5 74), 115905#(<= ULTIMATE.start_main_~i~5 77), 115904#(<= ULTIMATE.start_main_~i~5 76), 115907#(<= ULTIMATE.start_main_~i~5 79), 115906#(<= ULTIMATE.start_main_~i~5 78), 115909#(<= ULTIMATE.start_main_~j~5 78), 115908#(<= ULTIMATE.start_main_~j~5 79), 115911#(<= ULTIMATE.start_main_~j~5 76), 115910#(<= ULTIMATE.start_main_~j~5 77), 115913#(<= ULTIMATE.start_main_~j~5 74), 115912#(<= ULTIMATE.start_main_~j~5 75), 115915#(<= ULTIMATE.start_main_~j~5 72), 115914#(<= ULTIMATE.start_main_~j~5 73), 115917#(<= ULTIMATE.start_main_~j~5 70), 115916#(<= ULTIMATE.start_main_~j~5 71), 115919#(<= ULTIMATE.start_main_~j~5 68), 115918#(<= ULTIMATE.start_main_~j~5 69), 115921#(<= ULTIMATE.start_main_~j~5 66), 115920#(<= ULTIMATE.start_main_~j~5 67), 115923#(<= ULTIMATE.start_main_~j~5 64), 115922#(<= ULTIMATE.start_main_~j~5 65), 115925#(<= ULTIMATE.start_main_~j~5 62), 115924#(<= ULTIMATE.start_main_~j~5 63), 115927#(<= ULTIMATE.start_main_~j~5 60), 115926#(<= ULTIMATE.start_main_~j~5 61), 115929#(<= ULTIMATE.start_main_~j~5 58), 115928#(<= ULTIMATE.start_main_~j~5 59), 115931#(<= ULTIMATE.start_main_~j~5 56), 115930#(<= ULTIMATE.start_main_~j~5 57), 115933#(<= ULTIMATE.start_main_~j~5 54), 115932#(<= ULTIMATE.start_main_~j~5 55), 115935#(<= ULTIMATE.start_main_~j~5 52), 115934#(<= ULTIMATE.start_main_~j~5 53), 115937#(<= ULTIMATE.start_main_~j~5 50), 115936#(<= ULTIMATE.start_main_~j~5 51), 115939#(<= ULTIMATE.start_main_~j~5 48), 115938#(<= ULTIMATE.start_main_~j~5 49), 115941#(<= ULTIMATE.start_main_~j~5 46), 115940#(<= ULTIMATE.start_main_~j~5 47), 115943#(<= ULTIMATE.start_main_~j~5 44), 115942#(<= ULTIMATE.start_main_~j~5 45), 115945#(<= ULTIMATE.start_main_~j~5 42), 115944#(<= ULTIMATE.start_main_~j~5 43), 115947#(<= ULTIMATE.start_main_~j~5 40), 115946#(<= ULTIMATE.start_main_~j~5 41), 115949#(<= ULTIMATE.start_main_~j~5 38), 115948#(<= ULTIMATE.start_main_~j~5 39), 115951#(<= ULTIMATE.start_main_~j~5 36), 115950#(<= ULTIMATE.start_main_~j~5 37), 115953#(<= ULTIMATE.start_main_~j~5 34), 115952#(<= ULTIMATE.start_main_~j~5 35), 115955#(<= ULTIMATE.start_main_~j~5 32), 115954#(<= ULTIMATE.start_main_~j~5 33), 115957#(<= ULTIMATE.start_main_~j~5 30), 115956#(<= ULTIMATE.start_main_~j~5 31), 115959#(<= ULTIMATE.start_main_~j~5 28), 115958#(<= ULTIMATE.start_main_~j~5 29), 115961#(<= ULTIMATE.start_main_~j~5 26), 115960#(<= ULTIMATE.start_main_~j~5 27), 115963#(<= ULTIMATE.start_main_~j~5 24), 115962#(<= ULTIMATE.start_main_~j~5 25), 115965#(<= ULTIMATE.start_main_~j~5 22), 115964#(<= ULTIMATE.start_main_~j~5 23), 115967#(<= ULTIMATE.start_main_~j~5 20), 115966#(<= ULTIMATE.start_main_~j~5 21)] [2018-07-23 13:42:13,495 INFO L134 CoverageAnalysis]: Checked inductivity of 9480 backedges. 6320 proven. 3160 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:13,495 INFO L450 AbstractCegarLoop]: Interpolant automaton has 162 states [2018-07-23 13:42:13,496 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 162 interpolants. [2018-07-23 13:42:13,497 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6641, Invalid=19441, Unknown=0, NotChecked=0, Total=26082 [2018-07-23 13:42:13,497 INFO L87 Difference]: Start difference. First operand 243 states and 244 transitions. Second operand 162 states. [2018-07-23 13:42:14,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:42:14,856 INFO L93 Difference]: Finished difference Result 407 states and 409 transitions. [2018-07-23 13:42:14,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 162 states. [2018-07-23 13:42:14,856 INFO L78 Accepts]: Start accepts. Automaton has 162 states. Word has length 242 [2018-07-23 13:42:14,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:42:14,857 INFO L225 Difference]: With dead ends: 407 [2018-07-23 13:42:14,857 INFO L226 Difference]: Without dead ends: 244 [2018-07-23 13:42:14,861 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 240 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9401 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=13281, Invalid=45041, Unknown=0, NotChecked=0, Total=58322 [2018-07-23 13:42:14,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2018-07-23 13:42:14,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 244. [2018-07-23 13:42:14,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2018-07-23 13:42:14,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 245 transitions. [2018-07-23 13:42:14,886 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 245 transitions. Word has length 242 [2018-07-23 13:42:14,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:42:14,886 INFO L471 AbstractCegarLoop]: Abstraction has 244 states and 245 transitions. [2018-07-23 13:42:14,886 INFO L472 AbstractCegarLoop]: Interpolant automaton has 162 states. [2018-07-23 13:42:14,886 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 245 transitions. [2018-07-23 13:42:14,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2018-07-23 13:42:14,887 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:42:14,887 INFO L357 BasicCegarLoop]: trace histogram [80, 80, 79, 1, 1, 1, 1] [2018-07-23 13:42:14,887 INFO L414 AbstractCegarLoop]: === Iteration 160 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:42:14,887 INFO L82 PathProgramCache]: Analyzing trace with hash 1184744595, now seen corresponding path program 158 times [2018-07-23 13:42:14,887 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:42:15,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:42:15,222 INFO L134 CoverageAnalysis]: Checked inductivity of 9560 backedges. 3240 proven. 6320 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:15,222 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:42:15,222 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [83] total 83 [2018-07-23 13:42:15,222 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:42:15,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:15,223 INFO L185 omatonBuilderFactory]: Interpolants [117505#(<= 53 ULTIMATE.start_main_~k~5), 117504#(<= 52 ULTIMATE.start_main_~k~5), 117507#(<= 55 ULTIMATE.start_main_~k~5), 117506#(<= 54 ULTIMATE.start_main_~k~5), 117509#(<= 57 ULTIMATE.start_main_~k~5), 117508#(<= 56 ULTIMATE.start_main_~k~5), 117511#(<= 59 ULTIMATE.start_main_~k~5), 117510#(<= 58 ULTIMATE.start_main_~k~5), 117513#(<= 61 ULTIMATE.start_main_~k~5), 117512#(<= 60 ULTIMATE.start_main_~k~5), 117515#(<= 63 ULTIMATE.start_main_~k~5), 117514#(<= 62 ULTIMATE.start_main_~k~5), 117517#(<= 65 ULTIMATE.start_main_~k~5), 117516#(<= 64 ULTIMATE.start_main_~k~5), 117519#(<= 67 ULTIMATE.start_main_~k~5), 117518#(<= 66 ULTIMATE.start_main_~k~5), 117521#(<= 69 ULTIMATE.start_main_~k~5), 117520#(<= 68 ULTIMATE.start_main_~k~5), 117523#(<= 71 ULTIMATE.start_main_~k~5), 117522#(<= 70 ULTIMATE.start_main_~k~5), 117525#(<= 73 ULTIMATE.start_main_~k~5), 117524#(<= 72 ULTIMATE.start_main_~k~5), 117527#(<= 75 ULTIMATE.start_main_~k~5), 117526#(<= 74 ULTIMATE.start_main_~k~5), 117529#(<= 77 ULTIMATE.start_main_~k~5), 117528#(<= 76 ULTIMATE.start_main_~k~5), 117531#(<= 79 ULTIMATE.start_main_~k~5), 117530#(<= 78 ULTIMATE.start_main_~k~5), 117533#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 117532#(<= 80 ULTIMATE.start_main_~k~5), 117451#false, 117450#true, 117453#(<= 1 ULTIMATE.start_main_~k~5), 117452#(<= 0 ULTIMATE.start_main_~k~5), 117455#(<= 3 ULTIMATE.start_main_~k~5), 117454#(<= 2 ULTIMATE.start_main_~k~5), 117457#(<= 5 ULTIMATE.start_main_~k~5), 117456#(<= 4 ULTIMATE.start_main_~k~5), 117459#(<= 7 ULTIMATE.start_main_~k~5), 117458#(<= 6 ULTIMATE.start_main_~k~5), 117461#(<= 9 ULTIMATE.start_main_~k~5), 117460#(<= 8 ULTIMATE.start_main_~k~5), 117463#(<= 11 ULTIMATE.start_main_~k~5), 117462#(<= 10 ULTIMATE.start_main_~k~5), 117465#(<= 13 ULTIMATE.start_main_~k~5), 117464#(<= 12 ULTIMATE.start_main_~k~5), 117467#(<= 15 ULTIMATE.start_main_~k~5), 117466#(<= 14 ULTIMATE.start_main_~k~5), 117469#(<= 17 ULTIMATE.start_main_~k~5), 117468#(<= 16 ULTIMATE.start_main_~k~5), 117471#(<= 19 ULTIMATE.start_main_~k~5), 117470#(<= 18 ULTIMATE.start_main_~k~5), 117473#(<= 21 ULTIMATE.start_main_~k~5), 117472#(<= 20 ULTIMATE.start_main_~k~5), 117475#(<= 23 ULTIMATE.start_main_~k~5), 117474#(<= 22 ULTIMATE.start_main_~k~5), 117477#(<= 25 ULTIMATE.start_main_~k~5), 117476#(<= 24 ULTIMATE.start_main_~k~5), 117479#(<= 27 ULTIMATE.start_main_~k~5), 117478#(<= 26 ULTIMATE.start_main_~k~5), 117481#(<= 29 ULTIMATE.start_main_~k~5), 117480#(<= 28 ULTIMATE.start_main_~k~5), 117483#(<= 31 ULTIMATE.start_main_~k~5), 117482#(<= 30 ULTIMATE.start_main_~k~5), 117485#(<= 33 ULTIMATE.start_main_~k~5), 117484#(<= 32 ULTIMATE.start_main_~k~5), 117487#(<= 35 ULTIMATE.start_main_~k~5), 117486#(<= 34 ULTIMATE.start_main_~k~5), 117489#(<= 37 ULTIMATE.start_main_~k~5), 117488#(<= 36 ULTIMATE.start_main_~k~5), 117491#(<= 39 ULTIMATE.start_main_~k~5), 117490#(<= 38 ULTIMATE.start_main_~k~5), 117493#(<= 41 ULTIMATE.start_main_~k~5), 117492#(<= 40 ULTIMATE.start_main_~k~5), 117495#(<= 43 ULTIMATE.start_main_~k~5), 117494#(<= 42 ULTIMATE.start_main_~k~5), 117497#(<= 45 ULTIMATE.start_main_~k~5), 117496#(<= 44 ULTIMATE.start_main_~k~5), 117499#(<= 47 ULTIMATE.start_main_~k~5), 117498#(<= 46 ULTIMATE.start_main_~k~5), 117501#(<= 49 ULTIMATE.start_main_~k~5), 117500#(<= 48 ULTIMATE.start_main_~k~5), 117503#(<= 51 ULTIMATE.start_main_~k~5), 117502#(<= 50 ULTIMATE.start_main_~k~5)] [2018-07-23 13:42:15,223 INFO L134 CoverageAnalysis]: Checked inductivity of 9560 backedges. 3240 proven. 6320 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:15,223 INFO L450 AbstractCegarLoop]: Interpolant automaton has 84 states [2018-07-23 13:42:15,224 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2018-07-23 13:42:15,224 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3405, Invalid=3567, Unknown=0, NotChecked=0, Total=6972 [2018-07-23 13:42:15,224 INFO L87 Difference]: Start difference. First operand 244 states and 245 transitions. Second operand 84 states. [2018-07-23 13:42:15,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:42:15,559 INFO L93 Difference]: Finished difference Result 252 states and 253 transitions. [2018-07-23 13:42:15,559 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 164 states. [2018-07-23 13:42:15,560 INFO L78 Accepts]: Start accepts. Automaton has 84 states. Word has length 243 [2018-07-23 13:42:15,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:42:15,560 INFO L225 Difference]: With dead ends: 252 [2018-07-23 13:42:15,560 INFO L226 Difference]: Without dead ends: 250 [2018-07-23 13:42:15,561 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 163 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6480 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=10209, Invalid=16851, Unknown=0, NotChecked=0, Total=27060 [2018-07-23 13:42:15,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2018-07-23 13:42:15,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 246. [2018-07-23 13:42:15,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2018-07-23 13:42:15,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 247 transitions. [2018-07-23 13:42:15,587 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 247 transitions. Word has length 243 [2018-07-23 13:42:15,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:42:15,587 INFO L471 AbstractCegarLoop]: Abstraction has 246 states and 247 transitions. [2018-07-23 13:42:15,587 INFO L472 AbstractCegarLoop]: Interpolant automaton has 84 states. [2018-07-23 13:42:15,587 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 247 transitions. [2018-07-23 13:42:15,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2018-07-23 13:42:15,588 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:42:15,588 INFO L357 BasicCegarLoop]: trace histogram [81, 80, 80, 1, 1, 1, 1] [2018-07-23 13:42:15,588 INFO L414 AbstractCegarLoop]: === Iteration 161 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:42:15,588 INFO L82 PathProgramCache]: Analyzing trace with hash 373288379, now seen corresponding path program 159 times [2018-07-23 13:42:15,588 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:42:15,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:42:16,161 INFO L134 CoverageAnalysis]: Checked inductivity of 9720 backedges. 6480 proven. 3240 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:16,162 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:42:16,162 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [163] total 163 [2018-07-23 13:42:16,162 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:42:16,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:16,162 INFO L185 omatonBuilderFactory]: Interpolants [118785#(<= ULTIMATE.start_main_~j~5 70), 118784#(<= ULTIMATE.start_main_~j~5 71), 118787#(<= ULTIMATE.start_main_~j~5 68), 118786#(<= ULTIMATE.start_main_~j~5 69), 118789#(<= ULTIMATE.start_main_~j~5 66), 118788#(<= ULTIMATE.start_main_~j~5 67), 118791#(<= ULTIMATE.start_main_~j~5 64), 118790#(<= ULTIMATE.start_main_~j~5 65), 118793#(<= ULTIMATE.start_main_~j~5 62), 118792#(<= ULTIMATE.start_main_~j~5 63), 118795#(<= ULTIMATE.start_main_~j~5 60), 118794#(<= ULTIMATE.start_main_~j~5 61), 118797#(<= ULTIMATE.start_main_~j~5 58), 118796#(<= ULTIMATE.start_main_~j~5 59), 118799#(<= ULTIMATE.start_main_~j~5 56), 118798#(<= ULTIMATE.start_main_~j~5 57), 118801#(<= ULTIMATE.start_main_~j~5 54), 118800#(<= ULTIMATE.start_main_~j~5 55), 118803#(<= ULTIMATE.start_main_~j~5 52), 118802#(<= ULTIMATE.start_main_~j~5 53), 118805#(<= ULTIMATE.start_main_~j~5 50), 118804#(<= ULTIMATE.start_main_~j~5 51), 118807#(<= ULTIMATE.start_main_~j~5 48), 118806#(<= ULTIMATE.start_main_~j~5 49), 118809#(<= ULTIMATE.start_main_~j~5 46), 118808#(<= ULTIMATE.start_main_~j~5 47), 118811#(<= ULTIMATE.start_main_~j~5 44), 118810#(<= ULTIMATE.start_main_~j~5 45), 118813#(<= ULTIMATE.start_main_~j~5 42), 118812#(<= ULTIMATE.start_main_~j~5 43), 118815#(<= ULTIMATE.start_main_~j~5 40), 118814#(<= ULTIMATE.start_main_~j~5 41), 118817#(<= ULTIMATE.start_main_~j~5 38), 118816#(<= ULTIMATE.start_main_~j~5 39), 118819#(<= ULTIMATE.start_main_~j~5 36), 118818#(<= ULTIMATE.start_main_~j~5 37), 118821#(<= ULTIMATE.start_main_~j~5 34), 118820#(<= ULTIMATE.start_main_~j~5 35), 118823#(<= ULTIMATE.start_main_~j~5 32), 118822#(<= ULTIMATE.start_main_~j~5 33), 118825#(<= ULTIMATE.start_main_~j~5 30), 118824#(<= ULTIMATE.start_main_~j~5 31), 118827#(<= ULTIMATE.start_main_~j~5 28), 118826#(<= ULTIMATE.start_main_~j~5 29), 118829#(<= ULTIMATE.start_main_~j~5 26), 118828#(<= ULTIMATE.start_main_~j~5 27), 118831#(<= ULTIMATE.start_main_~j~5 24), 118830#(<= ULTIMATE.start_main_~j~5 25), 118833#(<= ULTIMATE.start_main_~j~5 22), 118832#(<= ULTIMATE.start_main_~j~5 23), 118835#(<= ULTIMATE.start_main_~j~5 20), 118834#(<= ULTIMATE.start_main_~j~5 21), 118837#(<= ULTIMATE.start_main_~j~5 18), 118836#(<= ULTIMATE.start_main_~j~5 19), 118839#(<= ULTIMATE.start_main_~j~5 16), 118838#(<= ULTIMATE.start_main_~j~5 17), 118841#(<= ULTIMATE.start_main_~j~5 14), 118840#(<= ULTIMATE.start_main_~j~5 15), 118843#(<= ULTIMATE.start_main_~j~5 12), 118842#(<= ULTIMATE.start_main_~j~5 13), 118845#(<= ULTIMATE.start_main_~j~5 10), 118844#(<= ULTIMATE.start_main_~j~5 11), 118847#(<= ULTIMATE.start_main_~j~5 8), 118846#(<= ULTIMATE.start_main_~j~5 9), 118849#(<= ULTIMATE.start_main_~j~5 6), 118848#(<= ULTIMATE.start_main_~j~5 7), 118851#(<= ULTIMATE.start_main_~j~5 4), 118850#(<= ULTIMATE.start_main_~j~5 5), 118853#(<= ULTIMATE.start_main_~j~5 2), 118852#(<= ULTIMATE.start_main_~j~5 3), 118855#(<= ULTIMATE.start_main_~j~5 0), 118854#(<= ULTIMATE.start_main_~j~5 1), 118693#false, 118692#true, 118695#(<= ULTIMATE.start_main_~i~5 1), 118694#(<= ULTIMATE.start_main_~i~5 0), 118697#(<= ULTIMATE.start_main_~i~5 3), 118696#(<= ULTIMATE.start_main_~i~5 2), 118699#(<= ULTIMATE.start_main_~i~5 5), 118698#(<= ULTIMATE.start_main_~i~5 4), 118701#(<= ULTIMATE.start_main_~i~5 7), 118700#(<= ULTIMATE.start_main_~i~5 6), 118703#(<= ULTIMATE.start_main_~i~5 9), 118702#(<= ULTIMATE.start_main_~i~5 8), 118705#(<= ULTIMATE.start_main_~i~5 11), 118704#(<= ULTIMATE.start_main_~i~5 10), 118707#(<= ULTIMATE.start_main_~i~5 13), 118706#(<= ULTIMATE.start_main_~i~5 12), 118709#(<= ULTIMATE.start_main_~i~5 15), 118708#(<= ULTIMATE.start_main_~i~5 14), 118711#(<= ULTIMATE.start_main_~i~5 17), 118710#(<= ULTIMATE.start_main_~i~5 16), 118713#(<= ULTIMATE.start_main_~i~5 19), 118712#(<= ULTIMATE.start_main_~i~5 18), 118715#(<= ULTIMATE.start_main_~i~5 21), 118714#(<= ULTIMATE.start_main_~i~5 20), 118717#(<= ULTIMATE.start_main_~i~5 23), 118716#(<= ULTIMATE.start_main_~i~5 22), 118719#(<= ULTIMATE.start_main_~i~5 25), 118718#(<= ULTIMATE.start_main_~i~5 24), 118721#(<= ULTIMATE.start_main_~i~5 27), 118720#(<= ULTIMATE.start_main_~i~5 26), 118723#(<= ULTIMATE.start_main_~i~5 29), 118722#(<= ULTIMATE.start_main_~i~5 28), 118725#(<= ULTIMATE.start_main_~i~5 31), 118724#(<= ULTIMATE.start_main_~i~5 30), 118727#(<= ULTIMATE.start_main_~i~5 33), 118726#(<= ULTIMATE.start_main_~i~5 32), 118729#(<= ULTIMATE.start_main_~i~5 35), 118728#(<= ULTIMATE.start_main_~i~5 34), 118731#(<= ULTIMATE.start_main_~i~5 37), 118730#(<= ULTIMATE.start_main_~i~5 36), 118733#(<= ULTIMATE.start_main_~i~5 39), 118732#(<= ULTIMATE.start_main_~i~5 38), 118735#(<= ULTIMATE.start_main_~i~5 41), 118734#(<= ULTIMATE.start_main_~i~5 40), 118737#(<= ULTIMATE.start_main_~i~5 43), 118736#(<= ULTIMATE.start_main_~i~5 42), 118739#(<= ULTIMATE.start_main_~i~5 45), 118738#(<= ULTIMATE.start_main_~i~5 44), 118741#(<= ULTIMATE.start_main_~i~5 47), 118740#(<= ULTIMATE.start_main_~i~5 46), 118743#(<= ULTIMATE.start_main_~i~5 49), 118742#(<= ULTIMATE.start_main_~i~5 48), 118745#(<= ULTIMATE.start_main_~i~5 51), 118744#(<= ULTIMATE.start_main_~i~5 50), 118747#(<= ULTIMATE.start_main_~i~5 53), 118746#(<= ULTIMATE.start_main_~i~5 52), 118749#(<= ULTIMATE.start_main_~i~5 55), 118748#(<= ULTIMATE.start_main_~i~5 54), 118751#(<= ULTIMATE.start_main_~i~5 57), 118750#(<= ULTIMATE.start_main_~i~5 56), 118753#(<= ULTIMATE.start_main_~i~5 59), 118752#(<= ULTIMATE.start_main_~i~5 58), 118755#(<= ULTIMATE.start_main_~i~5 61), 118754#(<= ULTIMATE.start_main_~i~5 60), 118757#(<= ULTIMATE.start_main_~i~5 63), 118756#(<= ULTIMATE.start_main_~i~5 62), 118759#(<= ULTIMATE.start_main_~i~5 65), 118758#(<= ULTIMATE.start_main_~i~5 64), 118761#(<= ULTIMATE.start_main_~i~5 67), 118760#(<= ULTIMATE.start_main_~i~5 66), 118763#(<= ULTIMATE.start_main_~i~5 69), 118762#(<= ULTIMATE.start_main_~i~5 68), 118765#(<= ULTIMATE.start_main_~i~5 71), 118764#(<= ULTIMATE.start_main_~i~5 70), 118767#(<= ULTIMATE.start_main_~i~5 73), 118766#(<= ULTIMATE.start_main_~i~5 72), 118769#(<= ULTIMATE.start_main_~i~5 75), 118768#(<= ULTIMATE.start_main_~i~5 74), 118771#(<= ULTIMATE.start_main_~i~5 77), 118770#(<= ULTIMATE.start_main_~i~5 76), 118773#(<= ULTIMATE.start_main_~i~5 79), 118772#(<= ULTIMATE.start_main_~i~5 78), 118775#(<= ULTIMATE.start_main_~j~5 80), 118774#(<= ULTIMATE.start_main_~i~5 80), 118777#(<= ULTIMATE.start_main_~j~5 78), 118776#(<= ULTIMATE.start_main_~j~5 79), 118779#(<= ULTIMATE.start_main_~j~5 76), 118778#(<= ULTIMATE.start_main_~j~5 77), 118781#(<= ULTIMATE.start_main_~j~5 74), 118780#(<= ULTIMATE.start_main_~j~5 75), 118783#(<= ULTIMATE.start_main_~j~5 72), 118782#(<= ULTIMATE.start_main_~j~5 73)] [2018-07-23 13:42:16,163 INFO L134 CoverageAnalysis]: Checked inductivity of 9720 backedges. 6480 proven. 3240 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:16,163 INFO L450 AbstractCegarLoop]: Interpolant automaton has 164 states [2018-07-23 13:42:16,164 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 164 interpolants. [2018-07-23 13:42:16,165 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6805, Invalid=19927, Unknown=0, NotChecked=0, Total=26732 [2018-07-23 13:42:16,166 INFO L87 Difference]: Start difference. First operand 246 states and 247 transitions. Second operand 164 states. [2018-07-23 13:42:17,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:42:17,495 INFO L93 Difference]: Finished difference Result 412 states and 414 transitions. [2018-07-23 13:42:17,495 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 164 states. [2018-07-23 13:42:17,495 INFO L78 Accepts]: Start accepts. Automaton has 164 states. Word has length 245 [2018-07-23 13:42:17,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:42:17,496 INFO L225 Difference]: With dead ends: 412 [2018-07-23 13:42:17,496 INFO L226 Difference]: Without dead ends: 247 [2018-07-23 13:42:17,501 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 243 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9640 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=13609, Invalid=46171, Unknown=0, NotChecked=0, Total=59780 [2018-07-23 13:42:17,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2018-07-23 13:42:17,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 247. [2018-07-23 13:42:17,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2018-07-23 13:42:17,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 248 transitions. [2018-07-23 13:42:17,527 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 248 transitions. Word has length 245 [2018-07-23 13:42:17,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:42:17,527 INFO L471 AbstractCegarLoop]: Abstraction has 247 states and 248 transitions. [2018-07-23 13:42:17,527 INFO L472 AbstractCegarLoop]: Interpolant automaton has 164 states. [2018-07-23 13:42:17,527 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 248 transitions. [2018-07-23 13:42:17,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2018-07-23 13:42:17,528 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:42:17,528 INFO L357 BasicCegarLoop]: trace histogram [81, 81, 80, 1, 1, 1, 1] [2018-07-23 13:42:17,528 INFO L414 AbstractCegarLoop]: === Iteration 162 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:42:17,528 INFO L82 PathProgramCache]: Analyzing trace with hash 688919522, now seen corresponding path program 160 times [2018-07-23 13:42:17,528 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:42:17,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:42:17,865 INFO L134 CoverageAnalysis]: Checked inductivity of 9801 backedges. 3321 proven. 6480 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:17,865 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:42:17,865 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [84] total 84 [2018-07-23 13:42:17,866 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:42:17,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:17,866 INFO L185 omatonBuilderFactory]: Interpolants [120337#false, 120336#true, 120339#(<= 1 ULTIMATE.start_main_~k~5), 120338#(<= 0 ULTIMATE.start_main_~k~5), 120341#(<= 3 ULTIMATE.start_main_~k~5), 120340#(<= 2 ULTIMATE.start_main_~k~5), 120343#(<= 5 ULTIMATE.start_main_~k~5), 120342#(<= 4 ULTIMATE.start_main_~k~5), 120345#(<= 7 ULTIMATE.start_main_~k~5), 120344#(<= 6 ULTIMATE.start_main_~k~5), 120347#(<= 9 ULTIMATE.start_main_~k~5), 120346#(<= 8 ULTIMATE.start_main_~k~5), 120349#(<= 11 ULTIMATE.start_main_~k~5), 120348#(<= 10 ULTIMATE.start_main_~k~5), 120351#(<= 13 ULTIMATE.start_main_~k~5), 120350#(<= 12 ULTIMATE.start_main_~k~5), 120353#(<= 15 ULTIMATE.start_main_~k~5), 120352#(<= 14 ULTIMATE.start_main_~k~5), 120355#(<= 17 ULTIMATE.start_main_~k~5), 120354#(<= 16 ULTIMATE.start_main_~k~5), 120357#(<= 19 ULTIMATE.start_main_~k~5), 120356#(<= 18 ULTIMATE.start_main_~k~5), 120359#(<= 21 ULTIMATE.start_main_~k~5), 120358#(<= 20 ULTIMATE.start_main_~k~5), 120361#(<= 23 ULTIMATE.start_main_~k~5), 120360#(<= 22 ULTIMATE.start_main_~k~5), 120363#(<= 25 ULTIMATE.start_main_~k~5), 120362#(<= 24 ULTIMATE.start_main_~k~5), 120365#(<= 27 ULTIMATE.start_main_~k~5), 120364#(<= 26 ULTIMATE.start_main_~k~5), 120367#(<= 29 ULTIMATE.start_main_~k~5), 120366#(<= 28 ULTIMATE.start_main_~k~5), 120369#(<= 31 ULTIMATE.start_main_~k~5), 120368#(<= 30 ULTIMATE.start_main_~k~5), 120371#(<= 33 ULTIMATE.start_main_~k~5), 120370#(<= 32 ULTIMATE.start_main_~k~5), 120373#(<= 35 ULTIMATE.start_main_~k~5), 120372#(<= 34 ULTIMATE.start_main_~k~5), 120375#(<= 37 ULTIMATE.start_main_~k~5), 120374#(<= 36 ULTIMATE.start_main_~k~5), 120377#(<= 39 ULTIMATE.start_main_~k~5), 120376#(<= 38 ULTIMATE.start_main_~k~5), 120379#(<= 41 ULTIMATE.start_main_~k~5), 120378#(<= 40 ULTIMATE.start_main_~k~5), 120381#(<= 43 ULTIMATE.start_main_~k~5), 120380#(<= 42 ULTIMATE.start_main_~k~5), 120383#(<= 45 ULTIMATE.start_main_~k~5), 120382#(<= 44 ULTIMATE.start_main_~k~5), 120385#(<= 47 ULTIMATE.start_main_~k~5), 120384#(<= 46 ULTIMATE.start_main_~k~5), 120387#(<= 49 ULTIMATE.start_main_~k~5), 120386#(<= 48 ULTIMATE.start_main_~k~5), 120389#(<= 51 ULTIMATE.start_main_~k~5), 120388#(<= 50 ULTIMATE.start_main_~k~5), 120391#(<= 53 ULTIMATE.start_main_~k~5), 120390#(<= 52 ULTIMATE.start_main_~k~5), 120393#(<= 55 ULTIMATE.start_main_~k~5), 120392#(<= 54 ULTIMATE.start_main_~k~5), 120395#(<= 57 ULTIMATE.start_main_~k~5), 120394#(<= 56 ULTIMATE.start_main_~k~5), 120397#(<= 59 ULTIMATE.start_main_~k~5), 120396#(<= 58 ULTIMATE.start_main_~k~5), 120399#(<= 61 ULTIMATE.start_main_~k~5), 120398#(<= 60 ULTIMATE.start_main_~k~5), 120401#(<= 63 ULTIMATE.start_main_~k~5), 120400#(<= 62 ULTIMATE.start_main_~k~5), 120403#(<= 65 ULTIMATE.start_main_~k~5), 120402#(<= 64 ULTIMATE.start_main_~k~5), 120405#(<= 67 ULTIMATE.start_main_~k~5), 120404#(<= 66 ULTIMATE.start_main_~k~5), 120407#(<= 69 ULTIMATE.start_main_~k~5), 120406#(<= 68 ULTIMATE.start_main_~k~5), 120409#(<= 71 ULTIMATE.start_main_~k~5), 120408#(<= 70 ULTIMATE.start_main_~k~5), 120411#(<= 73 ULTIMATE.start_main_~k~5), 120410#(<= 72 ULTIMATE.start_main_~k~5), 120413#(<= 75 ULTIMATE.start_main_~k~5), 120412#(<= 74 ULTIMATE.start_main_~k~5), 120415#(<= 77 ULTIMATE.start_main_~k~5), 120414#(<= 76 ULTIMATE.start_main_~k~5), 120417#(<= 79 ULTIMATE.start_main_~k~5), 120416#(<= 78 ULTIMATE.start_main_~k~5), 120419#(<= 81 ULTIMATE.start_main_~k~5), 120418#(<= 80 ULTIMATE.start_main_~k~5), 120420#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond)] [2018-07-23 13:42:17,866 INFO L134 CoverageAnalysis]: Checked inductivity of 9801 backedges. 3321 proven. 6480 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:17,867 INFO L450 AbstractCegarLoop]: Interpolant automaton has 85 states [2018-07-23 13:42:17,867 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2018-07-23 13:42:17,867 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3488, Invalid=3652, Unknown=0, NotChecked=0, Total=7140 [2018-07-23 13:42:17,867 INFO L87 Difference]: Start difference. First operand 247 states and 248 transitions. Second operand 85 states. [2018-07-23 13:42:18,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:42:18,148 INFO L93 Difference]: Finished difference Result 255 states and 256 transitions. [2018-07-23 13:42:18,148 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 166 states. [2018-07-23 13:42:18,148 INFO L78 Accepts]: Start accepts. Automaton has 85 states. Word has length 246 [2018-07-23 13:42:18,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:42:18,149 INFO L225 Difference]: With dead ends: 255 [2018-07-23 13:42:18,149 INFO L226 Difference]: Without dead ends: 253 [2018-07-23 13:42:18,150 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 165 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6642 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10458, Invalid=17264, Unknown=0, NotChecked=0, Total=27722 [2018-07-23 13:42:18,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2018-07-23 13:42:18,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 249. [2018-07-23 13:42:18,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2018-07-23 13:42:18,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 250 transitions. [2018-07-23 13:42:18,176 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 250 transitions. Word has length 246 [2018-07-23 13:42:18,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:42:18,177 INFO L471 AbstractCegarLoop]: Abstraction has 249 states and 250 transitions. [2018-07-23 13:42:18,177 INFO L472 AbstractCegarLoop]: Interpolant automaton has 85 states. [2018-07-23 13:42:18,177 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 250 transitions. [2018-07-23 13:42:18,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2018-07-23 13:42:18,177 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:42:18,177 INFO L357 BasicCegarLoop]: trace histogram [82, 81, 81, 1, 1, 1, 1] [2018-07-23 13:42:18,178 INFO L414 AbstractCegarLoop]: === Iteration 163 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:42:18,178 INFO L82 PathProgramCache]: Analyzing trace with hash 626763082, now seen corresponding path program 161 times [2018-07-23 13:42:18,178 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:42:18,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:42:18,736 INFO L134 CoverageAnalysis]: Checked inductivity of 9963 backedges. 6642 proven. 3321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:18,736 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:42:18,737 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [165] total 165 [2018-07-23 13:42:18,737 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:42:18,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:18,737 INFO L185 omatonBuilderFactory]: Interpolants [121601#(<= ULTIMATE.start_main_~i~5 6), 121600#(<= ULTIMATE.start_main_~i~5 5), 121603#(<= ULTIMATE.start_main_~i~5 8), 121602#(<= ULTIMATE.start_main_~i~5 7), 121605#(<= ULTIMATE.start_main_~i~5 10), 121604#(<= ULTIMATE.start_main_~i~5 9), 121607#(<= ULTIMATE.start_main_~i~5 12), 121606#(<= ULTIMATE.start_main_~i~5 11), 121609#(<= ULTIMATE.start_main_~i~5 14), 121608#(<= ULTIMATE.start_main_~i~5 13), 121611#(<= ULTIMATE.start_main_~i~5 16), 121610#(<= ULTIMATE.start_main_~i~5 15), 121613#(<= ULTIMATE.start_main_~i~5 18), 121612#(<= ULTIMATE.start_main_~i~5 17), 121615#(<= ULTIMATE.start_main_~i~5 20), 121614#(<= ULTIMATE.start_main_~i~5 19), 121617#(<= ULTIMATE.start_main_~i~5 22), 121616#(<= ULTIMATE.start_main_~i~5 21), 121619#(<= ULTIMATE.start_main_~i~5 24), 121618#(<= ULTIMATE.start_main_~i~5 23), 121621#(<= ULTIMATE.start_main_~i~5 26), 121620#(<= ULTIMATE.start_main_~i~5 25), 121623#(<= ULTIMATE.start_main_~i~5 28), 121622#(<= ULTIMATE.start_main_~i~5 27), 121625#(<= ULTIMATE.start_main_~i~5 30), 121624#(<= ULTIMATE.start_main_~i~5 29), 121627#(<= ULTIMATE.start_main_~i~5 32), 121626#(<= ULTIMATE.start_main_~i~5 31), 121629#(<= ULTIMATE.start_main_~i~5 34), 121628#(<= ULTIMATE.start_main_~i~5 33), 121631#(<= ULTIMATE.start_main_~i~5 36), 121630#(<= ULTIMATE.start_main_~i~5 35), 121633#(<= ULTIMATE.start_main_~i~5 38), 121632#(<= ULTIMATE.start_main_~i~5 37), 121635#(<= ULTIMATE.start_main_~i~5 40), 121634#(<= ULTIMATE.start_main_~i~5 39), 121637#(<= ULTIMATE.start_main_~i~5 42), 121636#(<= ULTIMATE.start_main_~i~5 41), 121639#(<= ULTIMATE.start_main_~i~5 44), 121638#(<= ULTIMATE.start_main_~i~5 43), 121641#(<= ULTIMATE.start_main_~i~5 46), 121640#(<= ULTIMATE.start_main_~i~5 45), 121643#(<= ULTIMATE.start_main_~i~5 48), 121642#(<= ULTIMATE.start_main_~i~5 47), 121645#(<= ULTIMATE.start_main_~i~5 50), 121644#(<= ULTIMATE.start_main_~i~5 49), 121647#(<= ULTIMATE.start_main_~i~5 52), 121646#(<= ULTIMATE.start_main_~i~5 51), 121649#(<= ULTIMATE.start_main_~i~5 54), 121648#(<= ULTIMATE.start_main_~i~5 53), 121651#(<= ULTIMATE.start_main_~i~5 56), 121650#(<= ULTIMATE.start_main_~i~5 55), 121653#(<= ULTIMATE.start_main_~i~5 58), 121652#(<= ULTIMATE.start_main_~i~5 57), 121655#(<= ULTIMATE.start_main_~i~5 60), 121654#(<= ULTIMATE.start_main_~i~5 59), 121657#(<= ULTIMATE.start_main_~i~5 62), 121656#(<= ULTIMATE.start_main_~i~5 61), 121659#(<= ULTIMATE.start_main_~i~5 64), 121658#(<= ULTIMATE.start_main_~i~5 63), 121661#(<= ULTIMATE.start_main_~i~5 66), 121660#(<= ULTIMATE.start_main_~i~5 65), 121663#(<= ULTIMATE.start_main_~i~5 68), 121662#(<= ULTIMATE.start_main_~i~5 67), 121665#(<= ULTIMATE.start_main_~i~5 70), 121664#(<= ULTIMATE.start_main_~i~5 69), 121667#(<= ULTIMATE.start_main_~i~5 72), 121666#(<= ULTIMATE.start_main_~i~5 71), 121669#(<= ULTIMATE.start_main_~i~5 74), 121668#(<= ULTIMATE.start_main_~i~5 73), 121671#(<= ULTIMATE.start_main_~i~5 76), 121670#(<= ULTIMATE.start_main_~i~5 75), 121673#(<= ULTIMATE.start_main_~i~5 78), 121672#(<= ULTIMATE.start_main_~i~5 77), 121675#(<= ULTIMATE.start_main_~i~5 80), 121674#(<= ULTIMATE.start_main_~i~5 79), 121677#(<= ULTIMATE.start_main_~j~5 81), 121676#(<= ULTIMATE.start_main_~i~5 81), 121679#(<= ULTIMATE.start_main_~j~5 79), 121678#(<= ULTIMATE.start_main_~j~5 80), 121681#(<= ULTIMATE.start_main_~j~5 77), 121680#(<= ULTIMATE.start_main_~j~5 78), 121683#(<= ULTIMATE.start_main_~j~5 75), 121682#(<= ULTIMATE.start_main_~j~5 76), 121685#(<= ULTIMATE.start_main_~j~5 73), 121684#(<= ULTIMATE.start_main_~j~5 74), 121687#(<= ULTIMATE.start_main_~j~5 71), 121686#(<= ULTIMATE.start_main_~j~5 72), 121689#(<= ULTIMATE.start_main_~j~5 69), 121688#(<= ULTIMATE.start_main_~j~5 70), 121691#(<= ULTIMATE.start_main_~j~5 67), 121690#(<= ULTIMATE.start_main_~j~5 68), 121693#(<= ULTIMATE.start_main_~j~5 65), 121692#(<= ULTIMATE.start_main_~j~5 66), 121695#(<= ULTIMATE.start_main_~j~5 63), 121694#(<= ULTIMATE.start_main_~j~5 64), 121697#(<= ULTIMATE.start_main_~j~5 61), 121696#(<= ULTIMATE.start_main_~j~5 62), 121699#(<= ULTIMATE.start_main_~j~5 59), 121698#(<= ULTIMATE.start_main_~j~5 60), 121701#(<= ULTIMATE.start_main_~j~5 57), 121700#(<= ULTIMATE.start_main_~j~5 58), 121703#(<= ULTIMATE.start_main_~j~5 55), 121702#(<= ULTIMATE.start_main_~j~5 56), 121705#(<= ULTIMATE.start_main_~j~5 53), 121704#(<= ULTIMATE.start_main_~j~5 54), 121707#(<= ULTIMATE.start_main_~j~5 51), 121706#(<= ULTIMATE.start_main_~j~5 52), 121709#(<= ULTIMATE.start_main_~j~5 49), 121708#(<= ULTIMATE.start_main_~j~5 50), 121711#(<= ULTIMATE.start_main_~j~5 47), 121710#(<= ULTIMATE.start_main_~j~5 48), 121713#(<= ULTIMATE.start_main_~j~5 45), 121712#(<= ULTIMATE.start_main_~j~5 46), 121715#(<= ULTIMATE.start_main_~j~5 43), 121714#(<= ULTIMATE.start_main_~j~5 44), 121717#(<= ULTIMATE.start_main_~j~5 41), 121716#(<= ULTIMATE.start_main_~j~5 42), 121719#(<= ULTIMATE.start_main_~j~5 39), 121718#(<= ULTIMATE.start_main_~j~5 40), 121721#(<= ULTIMATE.start_main_~j~5 37), 121720#(<= ULTIMATE.start_main_~j~5 38), 121723#(<= ULTIMATE.start_main_~j~5 35), 121722#(<= ULTIMATE.start_main_~j~5 36), 121725#(<= ULTIMATE.start_main_~j~5 33), 121724#(<= ULTIMATE.start_main_~j~5 34), 121727#(<= ULTIMATE.start_main_~j~5 31), 121726#(<= ULTIMATE.start_main_~j~5 32), 121729#(<= ULTIMATE.start_main_~j~5 29), 121728#(<= ULTIMATE.start_main_~j~5 30), 121731#(<= ULTIMATE.start_main_~j~5 27), 121730#(<= ULTIMATE.start_main_~j~5 28), 121733#(<= ULTIMATE.start_main_~j~5 25), 121732#(<= ULTIMATE.start_main_~j~5 26), 121735#(<= ULTIMATE.start_main_~j~5 23), 121734#(<= ULTIMATE.start_main_~j~5 24), 121737#(<= ULTIMATE.start_main_~j~5 21), 121736#(<= ULTIMATE.start_main_~j~5 22), 121739#(<= ULTIMATE.start_main_~j~5 19), 121738#(<= ULTIMATE.start_main_~j~5 20), 121741#(<= ULTIMATE.start_main_~j~5 17), 121740#(<= ULTIMATE.start_main_~j~5 18), 121743#(<= ULTIMATE.start_main_~j~5 15), 121742#(<= ULTIMATE.start_main_~j~5 16), 121745#(<= ULTIMATE.start_main_~j~5 13), 121744#(<= ULTIMATE.start_main_~j~5 14), 121747#(<= ULTIMATE.start_main_~j~5 11), 121746#(<= ULTIMATE.start_main_~j~5 12), 121749#(<= ULTIMATE.start_main_~j~5 9), 121748#(<= ULTIMATE.start_main_~j~5 10), 121751#(<= ULTIMATE.start_main_~j~5 7), 121750#(<= ULTIMATE.start_main_~j~5 8), 121753#(<= ULTIMATE.start_main_~j~5 5), 121752#(<= ULTIMATE.start_main_~j~5 6), 121755#(<= ULTIMATE.start_main_~j~5 3), 121754#(<= ULTIMATE.start_main_~j~5 4), 121757#(<= ULTIMATE.start_main_~j~5 1), 121756#(<= ULTIMATE.start_main_~j~5 2), 121758#(<= ULTIMATE.start_main_~j~5 0), 121593#true, 121595#(<= ULTIMATE.start_main_~i~5 0), 121594#false, 121597#(<= ULTIMATE.start_main_~i~5 2), 121596#(<= ULTIMATE.start_main_~i~5 1), 121599#(<= ULTIMATE.start_main_~i~5 4), 121598#(<= ULTIMATE.start_main_~i~5 3)] [2018-07-23 13:42:18,738 INFO L134 CoverageAnalysis]: Checked inductivity of 9963 backedges. 6642 proven. 3321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:18,738 INFO L450 AbstractCegarLoop]: Interpolant automaton has 166 states [2018-07-23 13:42:18,739 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 166 interpolants. [2018-07-23 13:42:18,740 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6971, Invalid=20419, Unknown=0, NotChecked=0, Total=27390 [2018-07-23 13:42:18,740 INFO L87 Difference]: Start difference. First operand 249 states and 250 transitions. Second operand 166 states. [2018-07-23 13:42:20,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:42:20,127 INFO L93 Difference]: Finished difference Result 417 states and 419 transitions. [2018-07-23 13:42:20,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 166 states. [2018-07-23 13:42:20,127 INFO L78 Accepts]: Start accepts. Automaton has 166 states. Word has length 248 [2018-07-23 13:42:20,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:42:20,128 INFO L225 Difference]: With dead ends: 417 [2018-07-23 13:42:20,128 INFO L226 Difference]: Without dead ends: 250 [2018-07-23 13:42:20,130 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 246 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9882 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=13941, Invalid=47315, Unknown=0, NotChecked=0, Total=61256 [2018-07-23 13:42:20,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2018-07-23 13:42:20,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 250. [2018-07-23 13:42:20,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2018-07-23 13:42:20,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 251 transitions. [2018-07-23 13:42:20,157 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 251 transitions. Word has length 248 [2018-07-23 13:42:20,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:42:20,157 INFO L471 AbstractCegarLoop]: Abstraction has 250 states and 251 transitions. [2018-07-23 13:42:20,158 INFO L472 AbstractCegarLoop]: Interpolant automaton has 166 states. [2018-07-23 13:42:20,158 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 251 transitions. [2018-07-23 13:42:20,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2018-07-23 13:42:20,158 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:42:20,158 INFO L357 BasicCegarLoop]: trace histogram [82, 82, 81, 1, 1, 1, 1] [2018-07-23 13:42:20,158 INFO L414 AbstractCegarLoop]: === Iteration 164 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:42:20,159 INFO L82 PathProgramCache]: Analyzing trace with hash 1910733251, now seen corresponding path program 162 times [2018-07-23 13:42:20,159 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:42:20,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:42:20,513 INFO L134 CoverageAnalysis]: Checked inductivity of 10045 backedges. 3403 proven. 6642 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:20,513 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:42:20,513 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [85] total 85 [2018-07-23 13:42:20,513 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:42:20,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:20,514 INFO L185 omatonBuilderFactory]: Interpolants [123265#(<= 6 ULTIMATE.start_main_~k~5), 123264#(<= 5 ULTIMATE.start_main_~k~5), 123267#(<= 8 ULTIMATE.start_main_~k~5), 123266#(<= 7 ULTIMATE.start_main_~k~5), 123269#(<= 10 ULTIMATE.start_main_~k~5), 123268#(<= 9 ULTIMATE.start_main_~k~5), 123271#(<= 12 ULTIMATE.start_main_~k~5), 123270#(<= 11 ULTIMATE.start_main_~k~5), 123273#(<= 14 ULTIMATE.start_main_~k~5), 123272#(<= 13 ULTIMATE.start_main_~k~5), 123275#(<= 16 ULTIMATE.start_main_~k~5), 123274#(<= 15 ULTIMATE.start_main_~k~5), 123277#(<= 18 ULTIMATE.start_main_~k~5), 123276#(<= 17 ULTIMATE.start_main_~k~5), 123279#(<= 20 ULTIMATE.start_main_~k~5), 123278#(<= 19 ULTIMATE.start_main_~k~5), 123281#(<= 22 ULTIMATE.start_main_~k~5), 123280#(<= 21 ULTIMATE.start_main_~k~5), 123283#(<= 24 ULTIMATE.start_main_~k~5), 123282#(<= 23 ULTIMATE.start_main_~k~5), 123285#(<= 26 ULTIMATE.start_main_~k~5), 123284#(<= 25 ULTIMATE.start_main_~k~5), 123287#(<= 28 ULTIMATE.start_main_~k~5), 123286#(<= 27 ULTIMATE.start_main_~k~5), 123289#(<= 30 ULTIMATE.start_main_~k~5), 123288#(<= 29 ULTIMATE.start_main_~k~5), 123291#(<= 32 ULTIMATE.start_main_~k~5), 123290#(<= 31 ULTIMATE.start_main_~k~5), 123293#(<= 34 ULTIMATE.start_main_~k~5), 123292#(<= 33 ULTIMATE.start_main_~k~5), 123295#(<= 36 ULTIMATE.start_main_~k~5), 123294#(<= 35 ULTIMATE.start_main_~k~5), 123297#(<= 38 ULTIMATE.start_main_~k~5), 123296#(<= 37 ULTIMATE.start_main_~k~5), 123299#(<= 40 ULTIMATE.start_main_~k~5), 123298#(<= 39 ULTIMATE.start_main_~k~5), 123301#(<= 42 ULTIMATE.start_main_~k~5), 123300#(<= 41 ULTIMATE.start_main_~k~5), 123303#(<= 44 ULTIMATE.start_main_~k~5), 123302#(<= 43 ULTIMATE.start_main_~k~5), 123305#(<= 46 ULTIMATE.start_main_~k~5), 123304#(<= 45 ULTIMATE.start_main_~k~5), 123307#(<= 48 ULTIMATE.start_main_~k~5), 123306#(<= 47 ULTIMATE.start_main_~k~5), 123309#(<= 50 ULTIMATE.start_main_~k~5), 123308#(<= 49 ULTIMATE.start_main_~k~5), 123311#(<= 52 ULTIMATE.start_main_~k~5), 123310#(<= 51 ULTIMATE.start_main_~k~5), 123313#(<= 54 ULTIMATE.start_main_~k~5), 123312#(<= 53 ULTIMATE.start_main_~k~5), 123315#(<= 56 ULTIMATE.start_main_~k~5), 123314#(<= 55 ULTIMATE.start_main_~k~5), 123317#(<= 58 ULTIMATE.start_main_~k~5), 123316#(<= 57 ULTIMATE.start_main_~k~5), 123319#(<= 60 ULTIMATE.start_main_~k~5), 123318#(<= 59 ULTIMATE.start_main_~k~5), 123321#(<= 62 ULTIMATE.start_main_~k~5), 123320#(<= 61 ULTIMATE.start_main_~k~5), 123323#(<= 64 ULTIMATE.start_main_~k~5), 123322#(<= 63 ULTIMATE.start_main_~k~5), 123325#(<= 66 ULTIMATE.start_main_~k~5), 123324#(<= 65 ULTIMATE.start_main_~k~5), 123327#(<= 68 ULTIMATE.start_main_~k~5), 123326#(<= 67 ULTIMATE.start_main_~k~5), 123329#(<= 70 ULTIMATE.start_main_~k~5), 123328#(<= 69 ULTIMATE.start_main_~k~5), 123331#(<= 72 ULTIMATE.start_main_~k~5), 123330#(<= 71 ULTIMATE.start_main_~k~5), 123333#(<= 74 ULTIMATE.start_main_~k~5), 123332#(<= 73 ULTIMATE.start_main_~k~5), 123335#(<= 76 ULTIMATE.start_main_~k~5), 123334#(<= 75 ULTIMATE.start_main_~k~5), 123337#(<= 78 ULTIMATE.start_main_~k~5), 123336#(<= 77 ULTIMATE.start_main_~k~5), 123339#(<= 80 ULTIMATE.start_main_~k~5), 123338#(<= 79 ULTIMATE.start_main_~k~5), 123341#(<= 82 ULTIMATE.start_main_~k~5), 123340#(<= 81 ULTIMATE.start_main_~k~5), 123342#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 123257#true, 123259#(<= 0 ULTIMATE.start_main_~k~5), 123258#false, 123261#(<= 2 ULTIMATE.start_main_~k~5), 123260#(<= 1 ULTIMATE.start_main_~k~5), 123263#(<= 4 ULTIMATE.start_main_~k~5), 123262#(<= 3 ULTIMATE.start_main_~k~5)] [2018-07-23 13:42:20,515 INFO L134 CoverageAnalysis]: Checked inductivity of 10045 backedges. 3403 proven. 6642 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:20,515 INFO L450 AbstractCegarLoop]: Interpolant automaton has 86 states [2018-07-23 13:42:20,515 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2018-07-23 13:42:20,516 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3572, Invalid=3738, Unknown=0, NotChecked=0, Total=7310 [2018-07-23 13:42:20,516 INFO L87 Difference]: Start difference. First operand 250 states and 251 transitions. Second operand 86 states. [2018-07-23 13:42:20,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:42:20,805 INFO L93 Difference]: Finished difference Result 258 states and 259 transitions. [2018-07-23 13:42:20,805 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 168 states. [2018-07-23 13:42:20,805 INFO L78 Accepts]: Start accepts. Automaton has 86 states. Word has length 249 [2018-07-23 13:42:20,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:42:20,806 INFO L225 Difference]: With dead ends: 258 [2018-07-23 13:42:20,806 INFO L226 Difference]: Without dead ends: 256 [2018-07-23 13:42:20,808 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 167 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6806 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10710, Invalid=17682, Unknown=0, NotChecked=0, Total=28392 [2018-07-23 13:42:20,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2018-07-23 13:42:20,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 252. [2018-07-23 13:42:20,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2018-07-23 13:42:20,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 253 transitions. [2018-07-23 13:42:20,834 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 253 transitions. Word has length 249 [2018-07-23 13:42:20,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:42:20,835 INFO L471 AbstractCegarLoop]: Abstraction has 252 states and 253 transitions. [2018-07-23 13:42:20,835 INFO L472 AbstractCegarLoop]: Interpolant automaton has 86 states. [2018-07-23 13:42:20,835 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 253 transitions. [2018-07-23 13:42:20,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2018-07-23 13:42:20,835 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:42:20,836 INFO L357 BasicCegarLoop]: trace histogram [83, 82, 82, 1, 1, 1, 1] [2018-07-23 13:42:20,836 INFO L414 AbstractCegarLoop]: === Iteration 165 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:42:20,836 INFO L82 PathProgramCache]: Analyzing trace with hash -2031282453, now seen corresponding path program 163 times [2018-07-23 13:42:20,836 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:42:20,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:42:21,393 INFO L134 CoverageAnalysis]: Checked inductivity of 10209 backedges. 6806 proven. 3403 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:21,393 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:42:21,393 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [167] total 167 [2018-07-23 13:42:21,393 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:42:21,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:21,394 INFO L185 omatonBuilderFactory]: Interpolants [124673#(<= ULTIMATE.start_main_~j~5 23), 124672#(<= ULTIMATE.start_main_~j~5 24), 124675#(<= ULTIMATE.start_main_~j~5 21), 124674#(<= ULTIMATE.start_main_~j~5 22), 124677#(<= ULTIMATE.start_main_~j~5 19), 124676#(<= ULTIMATE.start_main_~j~5 20), 124679#(<= ULTIMATE.start_main_~j~5 17), 124678#(<= ULTIMATE.start_main_~j~5 18), 124681#(<= ULTIMATE.start_main_~j~5 15), 124680#(<= ULTIMATE.start_main_~j~5 16), 124683#(<= ULTIMATE.start_main_~j~5 13), 124682#(<= ULTIMATE.start_main_~j~5 14), 124685#(<= ULTIMATE.start_main_~j~5 11), 124684#(<= ULTIMATE.start_main_~j~5 12), 124687#(<= ULTIMATE.start_main_~j~5 9), 124686#(<= ULTIMATE.start_main_~j~5 10), 124689#(<= ULTIMATE.start_main_~j~5 7), 124688#(<= ULTIMATE.start_main_~j~5 8), 124691#(<= ULTIMATE.start_main_~j~5 5), 124690#(<= ULTIMATE.start_main_~j~5 6), 124693#(<= ULTIMATE.start_main_~j~5 3), 124692#(<= ULTIMATE.start_main_~j~5 4), 124695#(<= ULTIMATE.start_main_~j~5 1), 124694#(<= ULTIMATE.start_main_~j~5 2), 124696#(<= ULTIMATE.start_main_~j~5 0), 124529#true, 124531#(<= ULTIMATE.start_main_~i~5 0), 124530#false, 124533#(<= ULTIMATE.start_main_~i~5 2), 124532#(<= ULTIMATE.start_main_~i~5 1), 124535#(<= ULTIMATE.start_main_~i~5 4), 124534#(<= ULTIMATE.start_main_~i~5 3), 124537#(<= ULTIMATE.start_main_~i~5 6), 124536#(<= ULTIMATE.start_main_~i~5 5), 124539#(<= ULTIMATE.start_main_~i~5 8), 124538#(<= ULTIMATE.start_main_~i~5 7), 124541#(<= ULTIMATE.start_main_~i~5 10), 124540#(<= ULTIMATE.start_main_~i~5 9), 124543#(<= ULTIMATE.start_main_~i~5 12), 124542#(<= ULTIMATE.start_main_~i~5 11), 124545#(<= ULTIMATE.start_main_~i~5 14), 124544#(<= ULTIMATE.start_main_~i~5 13), 124547#(<= ULTIMATE.start_main_~i~5 16), 124546#(<= ULTIMATE.start_main_~i~5 15), 124549#(<= ULTIMATE.start_main_~i~5 18), 124548#(<= ULTIMATE.start_main_~i~5 17), 124551#(<= ULTIMATE.start_main_~i~5 20), 124550#(<= ULTIMATE.start_main_~i~5 19), 124553#(<= ULTIMATE.start_main_~i~5 22), 124552#(<= ULTIMATE.start_main_~i~5 21), 124555#(<= ULTIMATE.start_main_~i~5 24), 124554#(<= ULTIMATE.start_main_~i~5 23), 124557#(<= ULTIMATE.start_main_~i~5 26), 124556#(<= ULTIMATE.start_main_~i~5 25), 124559#(<= ULTIMATE.start_main_~i~5 28), 124558#(<= ULTIMATE.start_main_~i~5 27), 124561#(<= ULTIMATE.start_main_~i~5 30), 124560#(<= ULTIMATE.start_main_~i~5 29), 124563#(<= ULTIMATE.start_main_~i~5 32), 124562#(<= ULTIMATE.start_main_~i~5 31), 124565#(<= ULTIMATE.start_main_~i~5 34), 124564#(<= ULTIMATE.start_main_~i~5 33), 124567#(<= ULTIMATE.start_main_~i~5 36), 124566#(<= ULTIMATE.start_main_~i~5 35), 124569#(<= ULTIMATE.start_main_~i~5 38), 124568#(<= ULTIMATE.start_main_~i~5 37), 124571#(<= ULTIMATE.start_main_~i~5 40), 124570#(<= ULTIMATE.start_main_~i~5 39), 124573#(<= ULTIMATE.start_main_~i~5 42), 124572#(<= ULTIMATE.start_main_~i~5 41), 124575#(<= ULTIMATE.start_main_~i~5 44), 124574#(<= ULTIMATE.start_main_~i~5 43), 124577#(<= ULTIMATE.start_main_~i~5 46), 124576#(<= ULTIMATE.start_main_~i~5 45), 124579#(<= ULTIMATE.start_main_~i~5 48), 124578#(<= ULTIMATE.start_main_~i~5 47), 124581#(<= ULTIMATE.start_main_~i~5 50), 124580#(<= ULTIMATE.start_main_~i~5 49), 124583#(<= ULTIMATE.start_main_~i~5 52), 124582#(<= ULTIMATE.start_main_~i~5 51), 124585#(<= ULTIMATE.start_main_~i~5 54), 124584#(<= ULTIMATE.start_main_~i~5 53), 124587#(<= ULTIMATE.start_main_~i~5 56), 124586#(<= ULTIMATE.start_main_~i~5 55), 124589#(<= ULTIMATE.start_main_~i~5 58), 124588#(<= ULTIMATE.start_main_~i~5 57), 124591#(<= ULTIMATE.start_main_~i~5 60), 124590#(<= ULTIMATE.start_main_~i~5 59), 124593#(<= ULTIMATE.start_main_~i~5 62), 124592#(<= ULTIMATE.start_main_~i~5 61), 124595#(<= ULTIMATE.start_main_~i~5 64), 124594#(<= ULTIMATE.start_main_~i~5 63), 124597#(<= ULTIMATE.start_main_~i~5 66), 124596#(<= ULTIMATE.start_main_~i~5 65), 124599#(<= ULTIMATE.start_main_~i~5 68), 124598#(<= ULTIMATE.start_main_~i~5 67), 124601#(<= ULTIMATE.start_main_~i~5 70), 124600#(<= ULTIMATE.start_main_~i~5 69), 124603#(<= ULTIMATE.start_main_~i~5 72), 124602#(<= ULTIMATE.start_main_~i~5 71), 124605#(<= ULTIMATE.start_main_~i~5 74), 124604#(<= ULTIMATE.start_main_~i~5 73), 124607#(<= ULTIMATE.start_main_~i~5 76), 124606#(<= ULTIMATE.start_main_~i~5 75), 124609#(<= ULTIMATE.start_main_~i~5 78), 124608#(<= ULTIMATE.start_main_~i~5 77), 124611#(<= ULTIMATE.start_main_~i~5 80), 124610#(<= ULTIMATE.start_main_~i~5 79), 124613#(<= ULTIMATE.start_main_~i~5 82), 124612#(<= ULTIMATE.start_main_~i~5 81), 124615#(<= ULTIMATE.start_main_~j~5 81), 124614#(<= ULTIMATE.start_main_~j~5 82), 124617#(<= ULTIMATE.start_main_~j~5 79), 124616#(<= ULTIMATE.start_main_~j~5 80), 124619#(<= ULTIMATE.start_main_~j~5 77), 124618#(<= ULTIMATE.start_main_~j~5 78), 124621#(<= ULTIMATE.start_main_~j~5 75), 124620#(<= ULTIMATE.start_main_~j~5 76), 124623#(<= ULTIMATE.start_main_~j~5 73), 124622#(<= ULTIMATE.start_main_~j~5 74), 124625#(<= ULTIMATE.start_main_~j~5 71), 124624#(<= ULTIMATE.start_main_~j~5 72), 124627#(<= ULTIMATE.start_main_~j~5 69), 124626#(<= ULTIMATE.start_main_~j~5 70), 124629#(<= ULTIMATE.start_main_~j~5 67), 124628#(<= ULTIMATE.start_main_~j~5 68), 124631#(<= ULTIMATE.start_main_~j~5 65), 124630#(<= ULTIMATE.start_main_~j~5 66), 124633#(<= ULTIMATE.start_main_~j~5 63), 124632#(<= ULTIMATE.start_main_~j~5 64), 124635#(<= ULTIMATE.start_main_~j~5 61), 124634#(<= ULTIMATE.start_main_~j~5 62), 124637#(<= ULTIMATE.start_main_~j~5 59), 124636#(<= ULTIMATE.start_main_~j~5 60), 124639#(<= ULTIMATE.start_main_~j~5 57), 124638#(<= ULTIMATE.start_main_~j~5 58), 124641#(<= ULTIMATE.start_main_~j~5 55), 124640#(<= ULTIMATE.start_main_~j~5 56), 124643#(<= ULTIMATE.start_main_~j~5 53), 124642#(<= ULTIMATE.start_main_~j~5 54), 124645#(<= ULTIMATE.start_main_~j~5 51), 124644#(<= ULTIMATE.start_main_~j~5 52), 124647#(<= ULTIMATE.start_main_~j~5 49), 124646#(<= ULTIMATE.start_main_~j~5 50), 124649#(<= ULTIMATE.start_main_~j~5 47), 124648#(<= ULTIMATE.start_main_~j~5 48), 124651#(<= ULTIMATE.start_main_~j~5 45), 124650#(<= ULTIMATE.start_main_~j~5 46), 124653#(<= ULTIMATE.start_main_~j~5 43), 124652#(<= ULTIMATE.start_main_~j~5 44), 124655#(<= ULTIMATE.start_main_~j~5 41), 124654#(<= ULTIMATE.start_main_~j~5 42), 124657#(<= ULTIMATE.start_main_~j~5 39), 124656#(<= ULTIMATE.start_main_~j~5 40), 124659#(<= ULTIMATE.start_main_~j~5 37), 124658#(<= ULTIMATE.start_main_~j~5 38), 124661#(<= ULTIMATE.start_main_~j~5 35), 124660#(<= ULTIMATE.start_main_~j~5 36), 124663#(<= ULTIMATE.start_main_~j~5 33), 124662#(<= ULTIMATE.start_main_~j~5 34), 124665#(<= ULTIMATE.start_main_~j~5 31), 124664#(<= ULTIMATE.start_main_~j~5 32), 124667#(<= ULTIMATE.start_main_~j~5 29), 124666#(<= ULTIMATE.start_main_~j~5 30), 124669#(<= ULTIMATE.start_main_~j~5 27), 124668#(<= ULTIMATE.start_main_~j~5 28), 124671#(<= ULTIMATE.start_main_~j~5 25), 124670#(<= ULTIMATE.start_main_~j~5 26)] [2018-07-23 13:42:21,394 INFO L134 CoverageAnalysis]: Checked inductivity of 10209 backedges. 6806 proven. 3403 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:21,395 INFO L450 AbstractCegarLoop]: Interpolant automaton has 168 states [2018-07-23 13:42:21,395 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 168 interpolants. [2018-07-23 13:42:21,396 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7139, Invalid=20917, Unknown=0, NotChecked=0, Total=28056 [2018-07-23 13:42:21,397 INFO L87 Difference]: Start difference. First operand 252 states and 253 transitions. Second operand 168 states. [2018-07-23 13:42:22,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:42:22,852 INFO L93 Difference]: Finished difference Result 422 states and 424 transitions. [2018-07-23 13:42:22,852 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 168 states. [2018-07-23 13:42:22,852 INFO L78 Accepts]: Start accepts. Automaton has 168 states. Word has length 251 [2018-07-23 13:42:22,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:42:22,853 INFO L225 Difference]: With dead ends: 422 [2018-07-23 13:42:22,853 INFO L226 Difference]: Without dead ends: 253 [2018-07-23 13:42:22,859 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 249 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10127 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=14277, Invalid=48473, Unknown=0, NotChecked=0, Total=62750 [2018-07-23 13:42:22,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2018-07-23 13:42:22,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 253. [2018-07-23 13:42:22,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2018-07-23 13:42:22,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 254 transitions. [2018-07-23 13:42:22,903 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 254 transitions. Word has length 251 [2018-07-23 13:42:22,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:42:22,903 INFO L471 AbstractCegarLoop]: Abstraction has 253 states and 254 transitions. [2018-07-23 13:42:22,904 INFO L472 AbstractCegarLoop]: Interpolant automaton has 168 states. [2018-07-23 13:42:22,904 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 254 transitions. [2018-07-23 13:42:22,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2018-07-23 13:42:22,905 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:42:22,905 INFO L357 BasicCegarLoop]: trace histogram [83, 83, 82, 1, 1, 1, 1] [2018-07-23 13:42:22,905 INFO L414 AbstractCegarLoop]: === Iteration 166 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:42:22,905 INFO L82 PathProgramCache]: Analyzing trace with hash 2040251346, now seen corresponding path program 164 times [2018-07-23 13:42:22,905 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:42:23,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:42:23,301 INFO L134 CoverageAnalysis]: Checked inductivity of 10292 backedges. 3486 proven. 6806 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:23,302 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:42:23,302 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [86] total 86 [2018-07-23 13:42:23,302 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:42:23,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:23,302 INFO L185 omatonBuilderFactory]: Interpolants [126213#true, 126215#(<= 0 ULTIMATE.start_main_~k~5), 126214#false, 126217#(<= 2 ULTIMATE.start_main_~k~5), 126216#(<= 1 ULTIMATE.start_main_~k~5), 126219#(<= 4 ULTIMATE.start_main_~k~5), 126218#(<= 3 ULTIMATE.start_main_~k~5), 126221#(<= 6 ULTIMATE.start_main_~k~5), 126220#(<= 5 ULTIMATE.start_main_~k~5), 126223#(<= 8 ULTIMATE.start_main_~k~5), 126222#(<= 7 ULTIMATE.start_main_~k~5), 126225#(<= 10 ULTIMATE.start_main_~k~5), 126224#(<= 9 ULTIMATE.start_main_~k~5), 126227#(<= 12 ULTIMATE.start_main_~k~5), 126226#(<= 11 ULTIMATE.start_main_~k~5), 126229#(<= 14 ULTIMATE.start_main_~k~5), 126228#(<= 13 ULTIMATE.start_main_~k~5), 126231#(<= 16 ULTIMATE.start_main_~k~5), 126230#(<= 15 ULTIMATE.start_main_~k~5), 126233#(<= 18 ULTIMATE.start_main_~k~5), 126232#(<= 17 ULTIMATE.start_main_~k~5), 126235#(<= 20 ULTIMATE.start_main_~k~5), 126234#(<= 19 ULTIMATE.start_main_~k~5), 126237#(<= 22 ULTIMATE.start_main_~k~5), 126236#(<= 21 ULTIMATE.start_main_~k~5), 126239#(<= 24 ULTIMATE.start_main_~k~5), 126238#(<= 23 ULTIMATE.start_main_~k~5), 126241#(<= 26 ULTIMATE.start_main_~k~5), 126240#(<= 25 ULTIMATE.start_main_~k~5), 126243#(<= 28 ULTIMATE.start_main_~k~5), 126242#(<= 27 ULTIMATE.start_main_~k~5), 126245#(<= 30 ULTIMATE.start_main_~k~5), 126244#(<= 29 ULTIMATE.start_main_~k~5), 126247#(<= 32 ULTIMATE.start_main_~k~5), 126246#(<= 31 ULTIMATE.start_main_~k~5), 126249#(<= 34 ULTIMATE.start_main_~k~5), 126248#(<= 33 ULTIMATE.start_main_~k~5), 126251#(<= 36 ULTIMATE.start_main_~k~5), 126250#(<= 35 ULTIMATE.start_main_~k~5), 126253#(<= 38 ULTIMATE.start_main_~k~5), 126252#(<= 37 ULTIMATE.start_main_~k~5), 126255#(<= 40 ULTIMATE.start_main_~k~5), 126254#(<= 39 ULTIMATE.start_main_~k~5), 126257#(<= 42 ULTIMATE.start_main_~k~5), 126256#(<= 41 ULTIMATE.start_main_~k~5), 126259#(<= 44 ULTIMATE.start_main_~k~5), 126258#(<= 43 ULTIMATE.start_main_~k~5), 126261#(<= 46 ULTIMATE.start_main_~k~5), 126260#(<= 45 ULTIMATE.start_main_~k~5), 126263#(<= 48 ULTIMATE.start_main_~k~5), 126262#(<= 47 ULTIMATE.start_main_~k~5), 126265#(<= 50 ULTIMATE.start_main_~k~5), 126264#(<= 49 ULTIMATE.start_main_~k~5), 126267#(<= 52 ULTIMATE.start_main_~k~5), 126266#(<= 51 ULTIMATE.start_main_~k~5), 126269#(<= 54 ULTIMATE.start_main_~k~5), 126268#(<= 53 ULTIMATE.start_main_~k~5), 126271#(<= 56 ULTIMATE.start_main_~k~5), 126270#(<= 55 ULTIMATE.start_main_~k~5), 126273#(<= 58 ULTIMATE.start_main_~k~5), 126272#(<= 57 ULTIMATE.start_main_~k~5), 126275#(<= 60 ULTIMATE.start_main_~k~5), 126274#(<= 59 ULTIMATE.start_main_~k~5), 126277#(<= 62 ULTIMATE.start_main_~k~5), 126276#(<= 61 ULTIMATE.start_main_~k~5), 126279#(<= 64 ULTIMATE.start_main_~k~5), 126278#(<= 63 ULTIMATE.start_main_~k~5), 126281#(<= 66 ULTIMATE.start_main_~k~5), 126280#(<= 65 ULTIMATE.start_main_~k~5), 126283#(<= 68 ULTIMATE.start_main_~k~5), 126282#(<= 67 ULTIMATE.start_main_~k~5), 126285#(<= 70 ULTIMATE.start_main_~k~5), 126284#(<= 69 ULTIMATE.start_main_~k~5), 126287#(<= 72 ULTIMATE.start_main_~k~5), 126286#(<= 71 ULTIMATE.start_main_~k~5), 126289#(<= 74 ULTIMATE.start_main_~k~5), 126288#(<= 73 ULTIMATE.start_main_~k~5), 126291#(<= 76 ULTIMATE.start_main_~k~5), 126290#(<= 75 ULTIMATE.start_main_~k~5), 126293#(<= 78 ULTIMATE.start_main_~k~5), 126292#(<= 77 ULTIMATE.start_main_~k~5), 126295#(<= 80 ULTIMATE.start_main_~k~5), 126294#(<= 79 ULTIMATE.start_main_~k~5), 126297#(<= 82 ULTIMATE.start_main_~k~5), 126296#(<= 81 ULTIMATE.start_main_~k~5), 126299#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 126298#(<= 83 ULTIMATE.start_main_~k~5)] [2018-07-23 13:42:23,303 INFO L134 CoverageAnalysis]: Checked inductivity of 10292 backedges. 3486 proven. 6806 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:23,303 INFO L450 AbstractCegarLoop]: Interpolant automaton has 87 states [2018-07-23 13:42:23,303 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2018-07-23 13:42:23,304 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3657, Invalid=3825, Unknown=0, NotChecked=0, Total=7482 [2018-07-23 13:42:23,304 INFO L87 Difference]: Start difference. First operand 253 states and 254 transitions. Second operand 87 states. [2018-07-23 13:42:23,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:42:23,636 INFO L93 Difference]: Finished difference Result 261 states and 262 transitions. [2018-07-23 13:42:23,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 170 states. [2018-07-23 13:42:23,636 INFO L78 Accepts]: Start accepts. Automaton has 87 states. Word has length 252 [2018-07-23 13:42:23,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:42:23,637 INFO L225 Difference]: With dead ends: 261 [2018-07-23 13:42:23,637 INFO L226 Difference]: Without dead ends: 259 [2018-07-23 13:42:23,639 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 169 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6972 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=10965, Invalid=18105, Unknown=0, NotChecked=0, Total=29070 [2018-07-23 13:42:23,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2018-07-23 13:42:23,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 255. [2018-07-23 13:42:23,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2018-07-23 13:42:23,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 256 transitions. [2018-07-23 13:42:23,666 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 256 transitions. Word has length 252 [2018-07-23 13:42:23,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:42:23,666 INFO L471 AbstractCegarLoop]: Abstraction has 255 states and 256 transitions. [2018-07-23 13:42:23,666 INFO L472 AbstractCegarLoop]: Interpolant automaton has 87 states. [2018-07-23 13:42:23,666 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 256 transitions. [2018-07-23 13:42:23,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2018-07-23 13:42:23,667 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:42:23,667 INFO L357 BasicCegarLoop]: trace histogram [84, 83, 83, 1, 1, 1, 1] [2018-07-23 13:42:23,667 INFO L414 AbstractCegarLoop]: === Iteration 167 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:42:23,667 INFO L82 PathProgramCache]: Analyzing trace with hash -2118444742, now seen corresponding path program 165 times [2018-07-23 13:42:23,667 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:42:23,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:42:24,276 INFO L134 CoverageAnalysis]: Checked inductivity of 10458 backedges. 6972 proven. 3486 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:24,276 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:42:24,277 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [169] total 169 [2018-07-23 13:42:24,277 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:42:24,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:24,277 INFO L185 omatonBuilderFactory]: Interpolants [127501#false, 127500#true, 127503#(<= ULTIMATE.start_main_~i~5 1), 127502#(<= ULTIMATE.start_main_~i~5 0), 127505#(<= ULTIMATE.start_main_~i~5 3), 127504#(<= ULTIMATE.start_main_~i~5 2), 127507#(<= ULTIMATE.start_main_~i~5 5), 127506#(<= ULTIMATE.start_main_~i~5 4), 127509#(<= ULTIMATE.start_main_~i~5 7), 127508#(<= ULTIMATE.start_main_~i~5 6), 127511#(<= ULTIMATE.start_main_~i~5 9), 127510#(<= ULTIMATE.start_main_~i~5 8), 127513#(<= ULTIMATE.start_main_~i~5 11), 127512#(<= ULTIMATE.start_main_~i~5 10), 127515#(<= ULTIMATE.start_main_~i~5 13), 127514#(<= ULTIMATE.start_main_~i~5 12), 127517#(<= ULTIMATE.start_main_~i~5 15), 127516#(<= ULTIMATE.start_main_~i~5 14), 127519#(<= ULTIMATE.start_main_~i~5 17), 127518#(<= ULTIMATE.start_main_~i~5 16), 127521#(<= ULTIMATE.start_main_~i~5 19), 127520#(<= ULTIMATE.start_main_~i~5 18), 127523#(<= ULTIMATE.start_main_~i~5 21), 127522#(<= ULTIMATE.start_main_~i~5 20), 127525#(<= ULTIMATE.start_main_~i~5 23), 127524#(<= ULTIMATE.start_main_~i~5 22), 127527#(<= ULTIMATE.start_main_~i~5 25), 127526#(<= ULTIMATE.start_main_~i~5 24), 127529#(<= ULTIMATE.start_main_~i~5 27), 127528#(<= ULTIMATE.start_main_~i~5 26), 127531#(<= ULTIMATE.start_main_~i~5 29), 127530#(<= ULTIMATE.start_main_~i~5 28), 127533#(<= ULTIMATE.start_main_~i~5 31), 127532#(<= ULTIMATE.start_main_~i~5 30), 127535#(<= ULTIMATE.start_main_~i~5 33), 127534#(<= ULTIMATE.start_main_~i~5 32), 127537#(<= ULTIMATE.start_main_~i~5 35), 127536#(<= ULTIMATE.start_main_~i~5 34), 127539#(<= ULTIMATE.start_main_~i~5 37), 127538#(<= ULTIMATE.start_main_~i~5 36), 127541#(<= ULTIMATE.start_main_~i~5 39), 127540#(<= ULTIMATE.start_main_~i~5 38), 127543#(<= ULTIMATE.start_main_~i~5 41), 127542#(<= ULTIMATE.start_main_~i~5 40), 127545#(<= ULTIMATE.start_main_~i~5 43), 127544#(<= ULTIMATE.start_main_~i~5 42), 127547#(<= ULTIMATE.start_main_~i~5 45), 127546#(<= ULTIMATE.start_main_~i~5 44), 127549#(<= ULTIMATE.start_main_~i~5 47), 127548#(<= ULTIMATE.start_main_~i~5 46), 127551#(<= ULTIMATE.start_main_~i~5 49), 127550#(<= ULTIMATE.start_main_~i~5 48), 127553#(<= ULTIMATE.start_main_~i~5 51), 127552#(<= ULTIMATE.start_main_~i~5 50), 127555#(<= ULTIMATE.start_main_~i~5 53), 127554#(<= ULTIMATE.start_main_~i~5 52), 127557#(<= ULTIMATE.start_main_~i~5 55), 127556#(<= ULTIMATE.start_main_~i~5 54), 127559#(<= ULTIMATE.start_main_~i~5 57), 127558#(<= ULTIMATE.start_main_~i~5 56), 127561#(<= ULTIMATE.start_main_~i~5 59), 127560#(<= ULTIMATE.start_main_~i~5 58), 127563#(<= ULTIMATE.start_main_~i~5 61), 127562#(<= ULTIMATE.start_main_~i~5 60), 127565#(<= ULTIMATE.start_main_~i~5 63), 127564#(<= ULTIMATE.start_main_~i~5 62), 127567#(<= ULTIMATE.start_main_~i~5 65), 127566#(<= ULTIMATE.start_main_~i~5 64), 127569#(<= ULTIMATE.start_main_~i~5 67), 127568#(<= ULTIMATE.start_main_~i~5 66), 127571#(<= ULTIMATE.start_main_~i~5 69), 127570#(<= ULTIMATE.start_main_~i~5 68), 127573#(<= ULTIMATE.start_main_~i~5 71), 127572#(<= ULTIMATE.start_main_~i~5 70), 127575#(<= ULTIMATE.start_main_~i~5 73), 127574#(<= ULTIMATE.start_main_~i~5 72), 127577#(<= ULTIMATE.start_main_~i~5 75), 127576#(<= ULTIMATE.start_main_~i~5 74), 127579#(<= ULTIMATE.start_main_~i~5 77), 127578#(<= ULTIMATE.start_main_~i~5 76), 127581#(<= ULTIMATE.start_main_~i~5 79), 127580#(<= ULTIMATE.start_main_~i~5 78), 127583#(<= ULTIMATE.start_main_~i~5 81), 127582#(<= ULTIMATE.start_main_~i~5 80), 127585#(<= ULTIMATE.start_main_~i~5 83), 127584#(<= ULTIMATE.start_main_~i~5 82), 127587#(<= ULTIMATE.start_main_~j~5 82), 127586#(<= ULTIMATE.start_main_~j~5 83), 127589#(<= ULTIMATE.start_main_~j~5 80), 127588#(<= ULTIMATE.start_main_~j~5 81), 127591#(<= ULTIMATE.start_main_~j~5 78), 127590#(<= ULTIMATE.start_main_~j~5 79), 127593#(<= ULTIMATE.start_main_~j~5 76), 127592#(<= ULTIMATE.start_main_~j~5 77), 127595#(<= ULTIMATE.start_main_~j~5 74), 127594#(<= ULTIMATE.start_main_~j~5 75), 127597#(<= ULTIMATE.start_main_~j~5 72), 127596#(<= ULTIMATE.start_main_~j~5 73), 127599#(<= ULTIMATE.start_main_~j~5 70), 127598#(<= ULTIMATE.start_main_~j~5 71), 127601#(<= ULTIMATE.start_main_~j~5 68), 127600#(<= ULTIMATE.start_main_~j~5 69), 127603#(<= ULTIMATE.start_main_~j~5 66), 127602#(<= ULTIMATE.start_main_~j~5 67), 127605#(<= ULTIMATE.start_main_~j~5 64), 127604#(<= ULTIMATE.start_main_~j~5 65), 127607#(<= ULTIMATE.start_main_~j~5 62), 127606#(<= ULTIMATE.start_main_~j~5 63), 127609#(<= ULTIMATE.start_main_~j~5 60), 127608#(<= ULTIMATE.start_main_~j~5 61), 127611#(<= ULTIMATE.start_main_~j~5 58), 127610#(<= ULTIMATE.start_main_~j~5 59), 127613#(<= ULTIMATE.start_main_~j~5 56), 127612#(<= ULTIMATE.start_main_~j~5 57), 127615#(<= ULTIMATE.start_main_~j~5 54), 127614#(<= ULTIMATE.start_main_~j~5 55), 127617#(<= ULTIMATE.start_main_~j~5 52), 127616#(<= ULTIMATE.start_main_~j~5 53), 127619#(<= ULTIMATE.start_main_~j~5 50), 127618#(<= ULTIMATE.start_main_~j~5 51), 127621#(<= ULTIMATE.start_main_~j~5 48), 127620#(<= ULTIMATE.start_main_~j~5 49), 127623#(<= ULTIMATE.start_main_~j~5 46), 127622#(<= ULTIMATE.start_main_~j~5 47), 127625#(<= ULTIMATE.start_main_~j~5 44), 127624#(<= ULTIMATE.start_main_~j~5 45), 127627#(<= ULTIMATE.start_main_~j~5 42), 127626#(<= ULTIMATE.start_main_~j~5 43), 127629#(<= ULTIMATE.start_main_~j~5 40), 127628#(<= ULTIMATE.start_main_~j~5 41), 127631#(<= ULTIMATE.start_main_~j~5 38), 127630#(<= ULTIMATE.start_main_~j~5 39), 127633#(<= ULTIMATE.start_main_~j~5 36), 127632#(<= ULTIMATE.start_main_~j~5 37), 127635#(<= ULTIMATE.start_main_~j~5 34), 127634#(<= ULTIMATE.start_main_~j~5 35), 127637#(<= ULTIMATE.start_main_~j~5 32), 127636#(<= ULTIMATE.start_main_~j~5 33), 127639#(<= ULTIMATE.start_main_~j~5 30), 127638#(<= ULTIMATE.start_main_~j~5 31), 127641#(<= ULTIMATE.start_main_~j~5 28), 127640#(<= ULTIMATE.start_main_~j~5 29), 127643#(<= ULTIMATE.start_main_~j~5 26), 127642#(<= ULTIMATE.start_main_~j~5 27), 127645#(<= ULTIMATE.start_main_~j~5 24), 127644#(<= ULTIMATE.start_main_~j~5 25), 127647#(<= ULTIMATE.start_main_~j~5 22), 127646#(<= ULTIMATE.start_main_~j~5 23), 127649#(<= ULTIMATE.start_main_~j~5 20), 127648#(<= ULTIMATE.start_main_~j~5 21), 127651#(<= ULTIMATE.start_main_~j~5 18), 127650#(<= ULTIMATE.start_main_~j~5 19), 127653#(<= ULTIMATE.start_main_~j~5 16), 127652#(<= ULTIMATE.start_main_~j~5 17), 127655#(<= ULTIMATE.start_main_~j~5 14), 127654#(<= ULTIMATE.start_main_~j~5 15), 127657#(<= ULTIMATE.start_main_~j~5 12), 127656#(<= ULTIMATE.start_main_~j~5 13), 127659#(<= ULTIMATE.start_main_~j~5 10), 127658#(<= ULTIMATE.start_main_~j~5 11), 127661#(<= ULTIMATE.start_main_~j~5 8), 127660#(<= ULTIMATE.start_main_~j~5 9), 127663#(<= ULTIMATE.start_main_~j~5 6), 127662#(<= ULTIMATE.start_main_~j~5 7), 127665#(<= ULTIMATE.start_main_~j~5 4), 127664#(<= ULTIMATE.start_main_~j~5 5), 127667#(<= ULTIMATE.start_main_~j~5 2), 127666#(<= ULTIMATE.start_main_~j~5 3), 127669#(<= ULTIMATE.start_main_~j~5 0), 127668#(<= ULTIMATE.start_main_~j~5 1)] [2018-07-23 13:42:24,278 INFO L134 CoverageAnalysis]: Checked inductivity of 10458 backedges. 6972 proven. 3486 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:24,278 INFO L450 AbstractCegarLoop]: Interpolant automaton has 170 states [2018-07-23 13:42:24,279 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 170 interpolants. [2018-07-23 13:42:24,280 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7309, Invalid=21421, Unknown=0, NotChecked=0, Total=28730 [2018-07-23 13:42:24,280 INFO L87 Difference]: Start difference. First operand 255 states and 256 transitions. Second operand 170 states. [2018-07-23 13:42:25,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:42:25,742 INFO L93 Difference]: Finished difference Result 427 states and 429 transitions. [2018-07-23 13:42:25,742 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 170 states. [2018-07-23 13:42:25,742 INFO L78 Accepts]: Start accepts. Automaton has 170 states. Word has length 254 [2018-07-23 13:42:25,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:42:25,743 INFO L225 Difference]: With dead ends: 427 [2018-07-23 13:42:25,743 INFO L226 Difference]: Without dead ends: 256 [2018-07-23 13:42:25,748 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 252 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10375 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=14617, Invalid=49645, Unknown=0, NotChecked=0, Total=64262 [2018-07-23 13:42:25,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2018-07-23 13:42:25,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2018-07-23 13:42:25,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2018-07-23 13:42:25,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 257 transitions. [2018-07-23 13:42:25,792 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 257 transitions. Word has length 254 [2018-07-23 13:42:25,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:42:25,793 INFO L471 AbstractCegarLoop]: Abstraction has 256 states and 257 transitions. [2018-07-23 13:42:25,793 INFO L472 AbstractCegarLoop]: Interpolant automaton has 170 states. [2018-07-23 13:42:25,793 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 257 transitions. [2018-07-23 13:42:25,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2018-07-23 13:42:25,794 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:42:25,794 INFO L357 BasicCegarLoop]: trace histogram [84, 84, 83, 1, 1, 1, 1] [2018-07-23 13:42:25,794 INFO L414 AbstractCegarLoop]: === Iteration 168 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:42:25,795 INFO L82 PathProgramCache]: Analyzing trace with hash -1226445069, now seen corresponding path program 166 times [2018-07-23 13:42:25,795 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:42:25,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:42:26,222 INFO L134 CoverageAnalysis]: Checked inductivity of 10542 backedges. 3570 proven. 6972 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:26,223 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:42:26,223 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [87] total 87 [2018-07-23 13:42:26,223 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:42:26,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:26,224 INFO L185 omatonBuilderFactory]: Interpolants [129281#(<= 75 ULTIMATE.start_main_~k~5), 129280#(<= 74 ULTIMATE.start_main_~k~5), 129283#(<= 77 ULTIMATE.start_main_~k~5), 129282#(<= 76 ULTIMATE.start_main_~k~5), 129285#(<= 79 ULTIMATE.start_main_~k~5), 129284#(<= 78 ULTIMATE.start_main_~k~5), 129287#(<= 81 ULTIMATE.start_main_~k~5), 129286#(<= 80 ULTIMATE.start_main_~k~5), 129289#(<= 83 ULTIMATE.start_main_~k~5), 129288#(<= 82 ULTIMATE.start_main_~k~5), 129291#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 129290#(<= 84 ULTIMATE.start_main_~k~5), 129205#false, 129204#true, 129207#(<= 1 ULTIMATE.start_main_~k~5), 129206#(<= 0 ULTIMATE.start_main_~k~5), 129209#(<= 3 ULTIMATE.start_main_~k~5), 129208#(<= 2 ULTIMATE.start_main_~k~5), 129211#(<= 5 ULTIMATE.start_main_~k~5), 129210#(<= 4 ULTIMATE.start_main_~k~5), 129213#(<= 7 ULTIMATE.start_main_~k~5), 129212#(<= 6 ULTIMATE.start_main_~k~5), 129215#(<= 9 ULTIMATE.start_main_~k~5), 129214#(<= 8 ULTIMATE.start_main_~k~5), 129217#(<= 11 ULTIMATE.start_main_~k~5), 129216#(<= 10 ULTIMATE.start_main_~k~5), 129219#(<= 13 ULTIMATE.start_main_~k~5), 129218#(<= 12 ULTIMATE.start_main_~k~5), 129221#(<= 15 ULTIMATE.start_main_~k~5), 129220#(<= 14 ULTIMATE.start_main_~k~5), 129223#(<= 17 ULTIMATE.start_main_~k~5), 129222#(<= 16 ULTIMATE.start_main_~k~5), 129225#(<= 19 ULTIMATE.start_main_~k~5), 129224#(<= 18 ULTIMATE.start_main_~k~5), 129227#(<= 21 ULTIMATE.start_main_~k~5), 129226#(<= 20 ULTIMATE.start_main_~k~5), 129229#(<= 23 ULTIMATE.start_main_~k~5), 129228#(<= 22 ULTIMATE.start_main_~k~5), 129231#(<= 25 ULTIMATE.start_main_~k~5), 129230#(<= 24 ULTIMATE.start_main_~k~5), 129233#(<= 27 ULTIMATE.start_main_~k~5), 129232#(<= 26 ULTIMATE.start_main_~k~5), 129235#(<= 29 ULTIMATE.start_main_~k~5), 129234#(<= 28 ULTIMATE.start_main_~k~5), 129237#(<= 31 ULTIMATE.start_main_~k~5), 129236#(<= 30 ULTIMATE.start_main_~k~5), 129239#(<= 33 ULTIMATE.start_main_~k~5), 129238#(<= 32 ULTIMATE.start_main_~k~5), 129241#(<= 35 ULTIMATE.start_main_~k~5), 129240#(<= 34 ULTIMATE.start_main_~k~5), 129243#(<= 37 ULTIMATE.start_main_~k~5), 129242#(<= 36 ULTIMATE.start_main_~k~5), 129245#(<= 39 ULTIMATE.start_main_~k~5), 129244#(<= 38 ULTIMATE.start_main_~k~5), 129247#(<= 41 ULTIMATE.start_main_~k~5), 129246#(<= 40 ULTIMATE.start_main_~k~5), 129249#(<= 43 ULTIMATE.start_main_~k~5), 129248#(<= 42 ULTIMATE.start_main_~k~5), 129251#(<= 45 ULTIMATE.start_main_~k~5), 129250#(<= 44 ULTIMATE.start_main_~k~5), 129253#(<= 47 ULTIMATE.start_main_~k~5), 129252#(<= 46 ULTIMATE.start_main_~k~5), 129255#(<= 49 ULTIMATE.start_main_~k~5), 129254#(<= 48 ULTIMATE.start_main_~k~5), 129257#(<= 51 ULTIMATE.start_main_~k~5), 129256#(<= 50 ULTIMATE.start_main_~k~5), 129259#(<= 53 ULTIMATE.start_main_~k~5), 129258#(<= 52 ULTIMATE.start_main_~k~5), 129261#(<= 55 ULTIMATE.start_main_~k~5), 129260#(<= 54 ULTIMATE.start_main_~k~5), 129263#(<= 57 ULTIMATE.start_main_~k~5), 129262#(<= 56 ULTIMATE.start_main_~k~5), 129265#(<= 59 ULTIMATE.start_main_~k~5), 129264#(<= 58 ULTIMATE.start_main_~k~5), 129267#(<= 61 ULTIMATE.start_main_~k~5), 129266#(<= 60 ULTIMATE.start_main_~k~5), 129269#(<= 63 ULTIMATE.start_main_~k~5), 129268#(<= 62 ULTIMATE.start_main_~k~5), 129271#(<= 65 ULTIMATE.start_main_~k~5), 129270#(<= 64 ULTIMATE.start_main_~k~5), 129273#(<= 67 ULTIMATE.start_main_~k~5), 129272#(<= 66 ULTIMATE.start_main_~k~5), 129275#(<= 69 ULTIMATE.start_main_~k~5), 129274#(<= 68 ULTIMATE.start_main_~k~5), 129277#(<= 71 ULTIMATE.start_main_~k~5), 129276#(<= 70 ULTIMATE.start_main_~k~5), 129279#(<= 73 ULTIMATE.start_main_~k~5), 129278#(<= 72 ULTIMATE.start_main_~k~5)] [2018-07-23 13:42:26,224 INFO L134 CoverageAnalysis]: Checked inductivity of 10542 backedges. 3570 proven. 6972 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:26,224 INFO L450 AbstractCegarLoop]: Interpolant automaton has 88 states [2018-07-23 13:42:26,225 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2018-07-23 13:42:26,225 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3743, Invalid=3913, Unknown=0, NotChecked=0, Total=7656 [2018-07-23 13:42:26,225 INFO L87 Difference]: Start difference. First operand 256 states and 257 transitions. Second operand 88 states. [2018-07-23 13:42:26,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:42:26,541 INFO L93 Difference]: Finished difference Result 264 states and 265 transitions. [2018-07-23 13:42:26,541 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 172 states. [2018-07-23 13:42:26,541 INFO L78 Accepts]: Start accepts. Automaton has 88 states. Word has length 255 [2018-07-23 13:42:26,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:42:26,541 INFO L225 Difference]: With dead ends: 264 [2018-07-23 13:42:26,541 INFO L226 Difference]: Without dead ends: 262 [2018-07-23 13:42:26,543 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 171 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7140 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11223, Invalid=18533, Unknown=0, NotChecked=0, Total=29756 [2018-07-23 13:42:26,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2018-07-23 13:42:26,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 258. [2018-07-23 13:42:26,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2018-07-23 13:42:26,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 259 transitions. [2018-07-23 13:42:26,590 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 259 transitions. Word has length 255 [2018-07-23 13:42:26,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:42:26,590 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 259 transitions. [2018-07-23 13:42:26,590 INFO L472 AbstractCegarLoop]: Interpolant automaton has 88 states. [2018-07-23 13:42:26,590 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 259 transitions. [2018-07-23 13:42:26,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2018-07-23 13:42:26,591 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:42:26,592 INFO L357 BasicCegarLoop]: trace histogram [85, 84, 84, 1, 1, 1, 1] [2018-07-23 13:42:26,592 INFO L414 AbstractCegarLoop]: === Iteration 169 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:42:26,592 INFO L82 PathProgramCache]: Analyzing trace with hash -1792606181, now seen corresponding path program 167 times [2018-07-23 13:42:26,592 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:42:26,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:42:27,238 INFO L134 CoverageAnalysis]: Checked inductivity of 10710 backedges. 7140 proven. 3570 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:27,239 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:42:27,239 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [171] total 171 [2018-07-23 13:42:27,239 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:42:27,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:27,239 INFO L185 omatonBuilderFactory]: Interpolants [130561#(<= ULTIMATE.start_main_~i~5 53), 130560#(<= ULTIMATE.start_main_~i~5 52), 130563#(<= ULTIMATE.start_main_~i~5 55), 130562#(<= ULTIMATE.start_main_~i~5 54), 130565#(<= ULTIMATE.start_main_~i~5 57), 130564#(<= ULTIMATE.start_main_~i~5 56), 130567#(<= ULTIMATE.start_main_~i~5 59), 130566#(<= ULTIMATE.start_main_~i~5 58), 130569#(<= ULTIMATE.start_main_~i~5 61), 130568#(<= ULTIMATE.start_main_~i~5 60), 130571#(<= ULTIMATE.start_main_~i~5 63), 130570#(<= ULTIMATE.start_main_~i~5 62), 130573#(<= ULTIMATE.start_main_~i~5 65), 130572#(<= ULTIMATE.start_main_~i~5 64), 130575#(<= ULTIMATE.start_main_~i~5 67), 130574#(<= ULTIMATE.start_main_~i~5 66), 130577#(<= ULTIMATE.start_main_~i~5 69), 130576#(<= ULTIMATE.start_main_~i~5 68), 130579#(<= ULTIMATE.start_main_~i~5 71), 130578#(<= ULTIMATE.start_main_~i~5 70), 130581#(<= ULTIMATE.start_main_~i~5 73), 130580#(<= ULTIMATE.start_main_~i~5 72), 130583#(<= ULTIMATE.start_main_~i~5 75), 130582#(<= ULTIMATE.start_main_~i~5 74), 130585#(<= ULTIMATE.start_main_~i~5 77), 130584#(<= ULTIMATE.start_main_~i~5 76), 130587#(<= ULTIMATE.start_main_~i~5 79), 130586#(<= ULTIMATE.start_main_~i~5 78), 130589#(<= ULTIMATE.start_main_~i~5 81), 130588#(<= ULTIMATE.start_main_~i~5 80), 130591#(<= ULTIMATE.start_main_~i~5 83), 130590#(<= ULTIMATE.start_main_~i~5 82), 130593#(<= ULTIMATE.start_main_~j~5 84), 130592#(<= ULTIMATE.start_main_~i~5 84), 130595#(<= ULTIMATE.start_main_~j~5 82), 130594#(<= ULTIMATE.start_main_~j~5 83), 130597#(<= ULTIMATE.start_main_~j~5 80), 130596#(<= ULTIMATE.start_main_~j~5 81), 130599#(<= ULTIMATE.start_main_~j~5 78), 130598#(<= ULTIMATE.start_main_~j~5 79), 130601#(<= ULTIMATE.start_main_~j~5 76), 130600#(<= ULTIMATE.start_main_~j~5 77), 130603#(<= ULTIMATE.start_main_~j~5 74), 130602#(<= ULTIMATE.start_main_~j~5 75), 130605#(<= ULTIMATE.start_main_~j~5 72), 130604#(<= ULTIMATE.start_main_~j~5 73), 130607#(<= ULTIMATE.start_main_~j~5 70), 130606#(<= ULTIMATE.start_main_~j~5 71), 130609#(<= ULTIMATE.start_main_~j~5 68), 130608#(<= ULTIMATE.start_main_~j~5 69), 130611#(<= ULTIMATE.start_main_~j~5 66), 130610#(<= ULTIMATE.start_main_~j~5 67), 130613#(<= ULTIMATE.start_main_~j~5 64), 130612#(<= ULTIMATE.start_main_~j~5 65), 130615#(<= ULTIMATE.start_main_~j~5 62), 130614#(<= ULTIMATE.start_main_~j~5 63), 130617#(<= ULTIMATE.start_main_~j~5 60), 130616#(<= ULTIMATE.start_main_~j~5 61), 130619#(<= ULTIMATE.start_main_~j~5 58), 130618#(<= ULTIMATE.start_main_~j~5 59), 130621#(<= ULTIMATE.start_main_~j~5 56), 130620#(<= ULTIMATE.start_main_~j~5 57), 130623#(<= ULTIMATE.start_main_~j~5 54), 130622#(<= ULTIMATE.start_main_~j~5 55), 130625#(<= ULTIMATE.start_main_~j~5 52), 130624#(<= ULTIMATE.start_main_~j~5 53), 130627#(<= ULTIMATE.start_main_~j~5 50), 130626#(<= ULTIMATE.start_main_~j~5 51), 130629#(<= ULTIMATE.start_main_~j~5 48), 130628#(<= ULTIMATE.start_main_~j~5 49), 130631#(<= ULTIMATE.start_main_~j~5 46), 130630#(<= ULTIMATE.start_main_~j~5 47), 130633#(<= ULTIMATE.start_main_~j~5 44), 130632#(<= ULTIMATE.start_main_~j~5 45), 130635#(<= ULTIMATE.start_main_~j~5 42), 130634#(<= ULTIMATE.start_main_~j~5 43), 130637#(<= ULTIMATE.start_main_~j~5 40), 130636#(<= ULTIMATE.start_main_~j~5 41), 130639#(<= ULTIMATE.start_main_~j~5 38), 130638#(<= ULTIMATE.start_main_~j~5 39), 130641#(<= ULTIMATE.start_main_~j~5 36), 130640#(<= ULTIMATE.start_main_~j~5 37), 130643#(<= ULTIMATE.start_main_~j~5 34), 130642#(<= ULTIMATE.start_main_~j~5 35), 130645#(<= ULTIMATE.start_main_~j~5 32), 130644#(<= ULTIMATE.start_main_~j~5 33), 130647#(<= ULTIMATE.start_main_~j~5 30), 130646#(<= ULTIMATE.start_main_~j~5 31), 130649#(<= ULTIMATE.start_main_~j~5 28), 130648#(<= ULTIMATE.start_main_~j~5 29), 130651#(<= ULTIMATE.start_main_~j~5 26), 130650#(<= ULTIMATE.start_main_~j~5 27), 130653#(<= ULTIMATE.start_main_~j~5 24), 130652#(<= ULTIMATE.start_main_~j~5 25), 130655#(<= ULTIMATE.start_main_~j~5 22), 130654#(<= ULTIMATE.start_main_~j~5 23), 130657#(<= ULTIMATE.start_main_~j~5 20), 130656#(<= ULTIMATE.start_main_~j~5 21), 130659#(<= ULTIMATE.start_main_~j~5 18), 130658#(<= ULTIMATE.start_main_~j~5 19), 130661#(<= ULTIMATE.start_main_~j~5 16), 130660#(<= ULTIMATE.start_main_~j~5 17), 130663#(<= ULTIMATE.start_main_~j~5 14), 130662#(<= ULTIMATE.start_main_~j~5 15), 130665#(<= ULTIMATE.start_main_~j~5 12), 130664#(<= ULTIMATE.start_main_~j~5 13), 130667#(<= ULTIMATE.start_main_~j~5 10), 130666#(<= ULTIMATE.start_main_~j~5 11), 130669#(<= ULTIMATE.start_main_~j~5 8), 130668#(<= ULTIMATE.start_main_~j~5 9), 130671#(<= ULTIMATE.start_main_~j~5 6), 130670#(<= ULTIMATE.start_main_~j~5 7), 130673#(<= ULTIMATE.start_main_~j~5 4), 130672#(<= ULTIMATE.start_main_~j~5 5), 130675#(<= ULTIMATE.start_main_~j~5 2), 130674#(<= ULTIMATE.start_main_~j~5 3), 130677#(<= ULTIMATE.start_main_~j~5 0), 130676#(<= ULTIMATE.start_main_~j~5 1), 130507#false, 130506#true, 130509#(<= ULTIMATE.start_main_~i~5 1), 130508#(<= ULTIMATE.start_main_~i~5 0), 130511#(<= ULTIMATE.start_main_~i~5 3), 130510#(<= ULTIMATE.start_main_~i~5 2), 130513#(<= ULTIMATE.start_main_~i~5 5), 130512#(<= ULTIMATE.start_main_~i~5 4), 130515#(<= ULTIMATE.start_main_~i~5 7), 130514#(<= ULTIMATE.start_main_~i~5 6), 130517#(<= ULTIMATE.start_main_~i~5 9), 130516#(<= ULTIMATE.start_main_~i~5 8), 130519#(<= ULTIMATE.start_main_~i~5 11), 130518#(<= ULTIMATE.start_main_~i~5 10), 130521#(<= ULTIMATE.start_main_~i~5 13), 130520#(<= ULTIMATE.start_main_~i~5 12), 130523#(<= ULTIMATE.start_main_~i~5 15), 130522#(<= ULTIMATE.start_main_~i~5 14), 130525#(<= ULTIMATE.start_main_~i~5 17), 130524#(<= ULTIMATE.start_main_~i~5 16), 130527#(<= ULTIMATE.start_main_~i~5 19), 130526#(<= ULTIMATE.start_main_~i~5 18), 130529#(<= ULTIMATE.start_main_~i~5 21), 130528#(<= ULTIMATE.start_main_~i~5 20), 130531#(<= ULTIMATE.start_main_~i~5 23), 130530#(<= ULTIMATE.start_main_~i~5 22), 130533#(<= ULTIMATE.start_main_~i~5 25), 130532#(<= ULTIMATE.start_main_~i~5 24), 130535#(<= ULTIMATE.start_main_~i~5 27), 130534#(<= ULTIMATE.start_main_~i~5 26), 130537#(<= ULTIMATE.start_main_~i~5 29), 130536#(<= ULTIMATE.start_main_~i~5 28), 130539#(<= ULTIMATE.start_main_~i~5 31), 130538#(<= ULTIMATE.start_main_~i~5 30), 130541#(<= ULTIMATE.start_main_~i~5 33), 130540#(<= ULTIMATE.start_main_~i~5 32), 130543#(<= ULTIMATE.start_main_~i~5 35), 130542#(<= ULTIMATE.start_main_~i~5 34), 130545#(<= ULTIMATE.start_main_~i~5 37), 130544#(<= ULTIMATE.start_main_~i~5 36), 130547#(<= ULTIMATE.start_main_~i~5 39), 130546#(<= ULTIMATE.start_main_~i~5 38), 130549#(<= ULTIMATE.start_main_~i~5 41), 130548#(<= ULTIMATE.start_main_~i~5 40), 130551#(<= ULTIMATE.start_main_~i~5 43), 130550#(<= ULTIMATE.start_main_~i~5 42), 130553#(<= ULTIMATE.start_main_~i~5 45), 130552#(<= ULTIMATE.start_main_~i~5 44), 130555#(<= ULTIMATE.start_main_~i~5 47), 130554#(<= ULTIMATE.start_main_~i~5 46), 130557#(<= ULTIMATE.start_main_~i~5 49), 130556#(<= ULTIMATE.start_main_~i~5 48), 130559#(<= ULTIMATE.start_main_~i~5 51), 130558#(<= ULTIMATE.start_main_~i~5 50)] [2018-07-23 13:42:27,240 INFO L134 CoverageAnalysis]: Checked inductivity of 10710 backedges. 7140 proven. 3570 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:27,240 INFO L450 AbstractCegarLoop]: Interpolant automaton has 172 states [2018-07-23 13:42:27,241 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 172 interpolants. [2018-07-23 13:42:27,242 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7481, Invalid=21931, Unknown=0, NotChecked=0, Total=29412 [2018-07-23 13:42:27,242 INFO L87 Difference]: Start difference. First operand 258 states and 259 transitions. Second operand 172 states. [2018-07-23 13:42:28,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:42:28,228 INFO L93 Difference]: Finished difference Result 432 states and 434 transitions. [2018-07-23 13:42:28,228 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 172 states. [2018-07-23 13:42:28,228 INFO L78 Accepts]: Start accepts. Automaton has 172 states. Word has length 257 [2018-07-23 13:42:28,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:42:28,229 INFO L225 Difference]: With dead ends: 432 [2018-07-23 13:42:28,229 INFO L226 Difference]: Without dead ends: 259 [2018-07-23 13:42:28,231 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 255 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10626 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=14961, Invalid=50831, Unknown=0, NotChecked=0, Total=65792 [2018-07-23 13:42:28,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2018-07-23 13:42:28,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 259. [2018-07-23 13:42:28,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2018-07-23 13:42:28,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 260 transitions. [2018-07-23 13:42:28,259 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 260 transitions. Word has length 257 [2018-07-23 13:42:28,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:42:28,259 INFO L471 AbstractCegarLoop]: Abstraction has 259 states and 260 transitions. [2018-07-23 13:42:28,259 INFO L472 AbstractCegarLoop]: Interpolant automaton has 172 states. [2018-07-23 13:42:28,259 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 260 transitions. [2018-07-23 13:42:28,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2018-07-23 13:42:28,260 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:42:28,260 INFO L357 BasicCegarLoop]: trace histogram [85, 85, 84, 1, 1, 1, 1] [2018-07-23 13:42:28,260 INFO L414 AbstractCegarLoop]: === Iteration 170 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:42:28,260 INFO L82 PathProgramCache]: Analyzing trace with hash -1193008190, now seen corresponding path program 168 times [2018-07-23 13:42:28,260 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:42:28,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:42:28,653 INFO L134 CoverageAnalysis]: Checked inductivity of 10795 backedges. 3655 proven. 7140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:28,653 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:42:28,654 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [88] total 88 [2018-07-23 13:42:28,654 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:42:28,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:28,654 INFO L185 omatonBuilderFactory]: Interpolants [132230#true, 132231#false, 132234#(<= 2 ULTIMATE.start_main_~k~5), 132235#(<= 3 ULTIMATE.start_main_~k~5), 132232#(<= 0 ULTIMATE.start_main_~k~5), 132233#(<= 1 ULTIMATE.start_main_~k~5), 132238#(<= 6 ULTIMATE.start_main_~k~5), 132239#(<= 7 ULTIMATE.start_main_~k~5), 132236#(<= 4 ULTIMATE.start_main_~k~5), 132237#(<= 5 ULTIMATE.start_main_~k~5), 132242#(<= 10 ULTIMATE.start_main_~k~5), 132243#(<= 11 ULTIMATE.start_main_~k~5), 132240#(<= 8 ULTIMATE.start_main_~k~5), 132241#(<= 9 ULTIMATE.start_main_~k~5), 132246#(<= 14 ULTIMATE.start_main_~k~5), 132247#(<= 15 ULTIMATE.start_main_~k~5), 132244#(<= 12 ULTIMATE.start_main_~k~5), 132245#(<= 13 ULTIMATE.start_main_~k~5), 132250#(<= 18 ULTIMATE.start_main_~k~5), 132251#(<= 19 ULTIMATE.start_main_~k~5), 132248#(<= 16 ULTIMATE.start_main_~k~5), 132249#(<= 17 ULTIMATE.start_main_~k~5), 132254#(<= 22 ULTIMATE.start_main_~k~5), 132255#(<= 23 ULTIMATE.start_main_~k~5), 132252#(<= 20 ULTIMATE.start_main_~k~5), 132253#(<= 21 ULTIMATE.start_main_~k~5), 132258#(<= 26 ULTIMATE.start_main_~k~5), 132259#(<= 27 ULTIMATE.start_main_~k~5), 132256#(<= 24 ULTIMATE.start_main_~k~5), 132257#(<= 25 ULTIMATE.start_main_~k~5), 132262#(<= 30 ULTIMATE.start_main_~k~5), 132263#(<= 31 ULTIMATE.start_main_~k~5), 132260#(<= 28 ULTIMATE.start_main_~k~5), 132261#(<= 29 ULTIMATE.start_main_~k~5), 132266#(<= 34 ULTIMATE.start_main_~k~5), 132267#(<= 35 ULTIMATE.start_main_~k~5), 132264#(<= 32 ULTIMATE.start_main_~k~5), 132265#(<= 33 ULTIMATE.start_main_~k~5), 132270#(<= 38 ULTIMATE.start_main_~k~5), 132271#(<= 39 ULTIMATE.start_main_~k~5), 132268#(<= 36 ULTIMATE.start_main_~k~5), 132269#(<= 37 ULTIMATE.start_main_~k~5), 132274#(<= 42 ULTIMATE.start_main_~k~5), 132275#(<= 43 ULTIMATE.start_main_~k~5), 132272#(<= 40 ULTIMATE.start_main_~k~5), 132273#(<= 41 ULTIMATE.start_main_~k~5), 132278#(<= 46 ULTIMATE.start_main_~k~5), 132279#(<= 47 ULTIMATE.start_main_~k~5), 132276#(<= 44 ULTIMATE.start_main_~k~5), 132277#(<= 45 ULTIMATE.start_main_~k~5), 132282#(<= 50 ULTIMATE.start_main_~k~5), 132283#(<= 51 ULTIMATE.start_main_~k~5), 132280#(<= 48 ULTIMATE.start_main_~k~5), 132281#(<= 49 ULTIMATE.start_main_~k~5), 132286#(<= 54 ULTIMATE.start_main_~k~5), 132287#(<= 55 ULTIMATE.start_main_~k~5), 132284#(<= 52 ULTIMATE.start_main_~k~5), 132285#(<= 53 ULTIMATE.start_main_~k~5), 132290#(<= 58 ULTIMATE.start_main_~k~5), 132291#(<= 59 ULTIMATE.start_main_~k~5), 132288#(<= 56 ULTIMATE.start_main_~k~5), 132289#(<= 57 ULTIMATE.start_main_~k~5), 132294#(<= 62 ULTIMATE.start_main_~k~5), 132295#(<= 63 ULTIMATE.start_main_~k~5), 132292#(<= 60 ULTIMATE.start_main_~k~5), 132293#(<= 61 ULTIMATE.start_main_~k~5), 132298#(<= 66 ULTIMATE.start_main_~k~5), 132299#(<= 67 ULTIMATE.start_main_~k~5), 132296#(<= 64 ULTIMATE.start_main_~k~5), 132297#(<= 65 ULTIMATE.start_main_~k~5), 132302#(<= 70 ULTIMATE.start_main_~k~5), 132303#(<= 71 ULTIMATE.start_main_~k~5), 132300#(<= 68 ULTIMATE.start_main_~k~5), 132301#(<= 69 ULTIMATE.start_main_~k~5), 132306#(<= 74 ULTIMATE.start_main_~k~5), 132307#(<= 75 ULTIMATE.start_main_~k~5), 132304#(<= 72 ULTIMATE.start_main_~k~5), 132305#(<= 73 ULTIMATE.start_main_~k~5), 132310#(<= 78 ULTIMATE.start_main_~k~5), 132311#(<= 79 ULTIMATE.start_main_~k~5), 132308#(<= 76 ULTIMATE.start_main_~k~5), 132309#(<= 77 ULTIMATE.start_main_~k~5), 132314#(<= 82 ULTIMATE.start_main_~k~5), 132315#(<= 83 ULTIMATE.start_main_~k~5), 132312#(<= 80 ULTIMATE.start_main_~k~5), 132313#(<= 81 ULTIMATE.start_main_~k~5), 132318#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 132316#(<= 84 ULTIMATE.start_main_~k~5), 132317#(<= 85 ULTIMATE.start_main_~k~5)] [2018-07-23 13:42:28,655 INFO L134 CoverageAnalysis]: Checked inductivity of 10795 backedges. 3655 proven. 7140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:28,655 INFO L450 AbstractCegarLoop]: Interpolant automaton has 89 states [2018-07-23 13:42:28,655 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2018-07-23 13:42:28,655 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3830, Invalid=4002, Unknown=0, NotChecked=0, Total=7832 [2018-07-23 13:42:28,656 INFO L87 Difference]: Start difference. First operand 259 states and 260 transitions. Second operand 89 states. [2018-07-23 13:42:28,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:42:28,972 INFO L93 Difference]: Finished difference Result 267 states and 268 transitions. [2018-07-23 13:42:28,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 174 states. [2018-07-23 13:42:28,972 INFO L78 Accepts]: Start accepts. Automaton has 89 states. Word has length 258 [2018-07-23 13:42:28,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:42:28,973 INFO L225 Difference]: With dead ends: 267 [2018-07-23 13:42:28,973 INFO L226 Difference]: Without dead ends: 265 [2018-07-23 13:42:28,974 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 173 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7310 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11484, Invalid=18966, Unknown=0, NotChecked=0, Total=30450 [2018-07-23 13:42:28,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2018-07-23 13:42:29,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 261. [2018-07-23 13:42:29,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2018-07-23 13:42:29,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 262 transitions. [2018-07-23 13:42:29,002 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 262 transitions. Word has length 258 [2018-07-23 13:42:29,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:42:29,003 INFO L471 AbstractCegarLoop]: Abstraction has 261 states and 262 transitions. [2018-07-23 13:42:29,003 INFO L472 AbstractCegarLoop]: Interpolant automaton has 89 states. [2018-07-23 13:42:29,003 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 262 transitions. [2018-07-23 13:42:29,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2018-07-23 13:42:29,003 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:42:29,004 INFO L357 BasicCegarLoop]: trace histogram [86, 85, 85, 1, 1, 1, 1] [2018-07-23 13:42:29,004 INFO L414 AbstractCegarLoop]: === Iteration 171 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:42:29,004 INFO L82 PathProgramCache]: Analyzing trace with hash 275463466, now seen corresponding path program 169 times [2018-07-23 13:42:29,004 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:42:29,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:42:29,610 INFO L134 CoverageAnalysis]: Checked inductivity of 10965 backedges. 7310 proven. 3655 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:29,610 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:42:29,610 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [173] total 173 [2018-07-23 13:42:29,611 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:42:29,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:29,611 INFO L185 omatonBuilderFactory]: Interpolants [133634#(<= ULTIMATE.start_main_~i~5 85), 133635#(<= ULTIMATE.start_main_~j~5 85), 133632#(<= ULTIMATE.start_main_~i~5 83), 133633#(<= ULTIMATE.start_main_~i~5 84), 133638#(<= ULTIMATE.start_main_~j~5 82), 133639#(<= ULTIMATE.start_main_~j~5 81), 133636#(<= ULTIMATE.start_main_~j~5 84), 133637#(<= ULTIMATE.start_main_~j~5 83), 133642#(<= ULTIMATE.start_main_~j~5 78), 133643#(<= ULTIMATE.start_main_~j~5 77), 133640#(<= ULTIMATE.start_main_~j~5 80), 133641#(<= ULTIMATE.start_main_~j~5 79), 133646#(<= ULTIMATE.start_main_~j~5 74), 133647#(<= ULTIMATE.start_main_~j~5 73), 133644#(<= ULTIMATE.start_main_~j~5 76), 133645#(<= ULTIMATE.start_main_~j~5 75), 133650#(<= ULTIMATE.start_main_~j~5 70), 133651#(<= ULTIMATE.start_main_~j~5 69), 133648#(<= ULTIMATE.start_main_~j~5 72), 133649#(<= ULTIMATE.start_main_~j~5 71), 133654#(<= ULTIMATE.start_main_~j~5 66), 133655#(<= ULTIMATE.start_main_~j~5 65), 133652#(<= ULTIMATE.start_main_~j~5 68), 133653#(<= ULTIMATE.start_main_~j~5 67), 133658#(<= ULTIMATE.start_main_~j~5 62), 133659#(<= ULTIMATE.start_main_~j~5 61), 133656#(<= ULTIMATE.start_main_~j~5 64), 133657#(<= ULTIMATE.start_main_~j~5 63), 133662#(<= ULTIMATE.start_main_~j~5 58), 133663#(<= ULTIMATE.start_main_~j~5 57), 133660#(<= ULTIMATE.start_main_~j~5 60), 133661#(<= ULTIMATE.start_main_~j~5 59), 133666#(<= ULTIMATE.start_main_~j~5 54), 133667#(<= ULTIMATE.start_main_~j~5 53), 133664#(<= ULTIMATE.start_main_~j~5 56), 133665#(<= ULTIMATE.start_main_~j~5 55), 133670#(<= ULTIMATE.start_main_~j~5 50), 133671#(<= ULTIMATE.start_main_~j~5 49), 133668#(<= ULTIMATE.start_main_~j~5 52), 133669#(<= ULTIMATE.start_main_~j~5 51), 133674#(<= ULTIMATE.start_main_~j~5 46), 133675#(<= ULTIMATE.start_main_~j~5 45), 133672#(<= ULTIMATE.start_main_~j~5 48), 133673#(<= ULTIMATE.start_main_~j~5 47), 133678#(<= ULTIMATE.start_main_~j~5 42), 133679#(<= ULTIMATE.start_main_~j~5 41), 133676#(<= ULTIMATE.start_main_~j~5 44), 133677#(<= ULTIMATE.start_main_~j~5 43), 133682#(<= ULTIMATE.start_main_~j~5 38), 133683#(<= ULTIMATE.start_main_~j~5 37), 133680#(<= ULTIMATE.start_main_~j~5 40), 133681#(<= ULTIMATE.start_main_~j~5 39), 133686#(<= ULTIMATE.start_main_~j~5 34), 133687#(<= ULTIMATE.start_main_~j~5 33), 133684#(<= ULTIMATE.start_main_~j~5 36), 133685#(<= ULTIMATE.start_main_~j~5 35), 133690#(<= ULTIMATE.start_main_~j~5 30), 133691#(<= ULTIMATE.start_main_~j~5 29), 133688#(<= ULTIMATE.start_main_~j~5 32), 133689#(<= ULTIMATE.start_main_~j~5 31), 133694#(<= ULTIMATE.start_main_~j~5 26), 133695#(<= ULTIMATE.start_main_~j~5 25), 133692#(<= ULTIMATE.start_main_~j~5 28), 133693#(<= ULTIMATE.start_main_~j~5 27), 133698#(<= ULTIMATE.start_main_~j~5 22), 133699#(<= ULTIMATE.start_main_~j~5 21), 133696#(<= ULTIMATE.start_main_~j~5 24), 133697#(<= ULTIMATE.start_main_~j~5 23), 133702#(<= ULTIMATE.start_main_~j~5 18), 133703#(<= ULTIMATE.start_main_~j~5 17), 133700#(<= ULTIMATE.start_main_~j~5 20), 133701#(<= ULTIMATE.start_main_~j~5 19), 133706#(<= ULTIMATE.start_main_~j~5 14), 133707#(<= ULTIMATE.start_main_~j~5 13), 133704#(<= ULTIMATE.start_main_~j~5 16), 133705#(<= ULTIMATE.start_main_~j~5 15), 133710#(<= ULTIMATE.start_main_~j~5 10), 133711#(<= ULTIMATE.start_main_~j~5 9), 133708#(<= ULTIMATE.start_main_~j~5 12), 133709#(<= ULTIMATE.start_main_~j~5 11), 133714#(<= ULTIMATE.start_main_~j~5 6), 133715#(<= ULTIMATE.start_main_~j~5 5), 133712#(<= ULTIMATE.start_main_~j~5 8), 133713#(<= ULTIMATE.start_main_~j~5 7), 133718#(<= ULTIMATE.start_main_~j~5 2), 133719#(<= ULTIMATE.start_main_~j~5 1), 133716#(<= ULTIMATE.start_main_~j~5 4), 133717#(<= ULTIMATE.start_main_~j~5 3), 133720#(<= ULTIMATE.start_main_~j~5 0), 133547#true, 133550#(<= ULTIMATE.start_main_~i~5 1), 133551#(<= ULTIMATE.start_main_~i~5 2), 133548#false, 133549#(<= ULTIMATE.start_main_~i~5 0), 133554#(<= ULTIMATE.start_main_~i~5 5), 133555#(<= ULTIMATE.start_main_~i~5 6), 133552#(<= ULTIMATE.start_main_~i~5 3), 133553#(<= ULTIMATE.start_main_~i~5 4), 133558#(<= ULTIMATE.start_main_~i~5 9), 133559#(<= ULTIMATE.start_main_~i~5 10), 133556#(<= ULTIMATE.start_main_~i~5 7), 133557#(<= ULTIMATE.start_main_~i~5 8), 133562#(<= ULTIMATE.start_main_~i~5 13), 133563#(<= ULTIMATE.start_main_~i~5 14), 133560#(<= ULTIMATE.start_main_~i~5 11), 133561#(<= ULTIMATE.start_main_~i~5 12), 133566#(<= ULTIMATE.start_main_~i~5 17), 133567#(<= ULTIMATE.start_main_~i~5 18), 133564#(<= ULTIMATE.start_main_~i~5 15), 133565#(<= ULTIMATE.start_main_~i~5 16), 133570#(<= ULTIMATE.start_main_~i~5 21), 133571#(<= ULTIMATE.start_main_~i~5 22), 133568#(<= ULTIMATE.start_main_~i~5 19), 133569#(<= ULTIMATE.start_main_~i~5 20), 133574#(<= ULTIMATE.start_main_~i~5 25), 133575#(<= ULTIMATE.start_main_~i~5 26), 133572#(<= ULTIMATE.start_main_~i~5 23), 133573#(<= ULTIMATE.start_main_~i~5 24), 133578#(<= ULTIMATE.start_main_~i~5 29), 133579#(<= ULTIMATE.start_main_~i~5 30), 133576#(<= ULTIMATE.start_main_~i~5 27), 133577#(<= ULTIMATE.start_main_~i~5 28), 133582#(<= ULTIMATE.start_main_~i~5 33), 133583#(<= ULTIMATE.start_main_~i~5 34), 133580#(<= ULTIMATE.start_main_~i~5 31), 133581#(<= ULTIMATE.start_main_~i~5 32), 133586#(<= ULTIMATE.start_main_~i~5 37), 133587#(<= ULTIMATE.start_main_~i~5 38), 133584#(<= ULTIMATE.start_main_~i~5 35), 133585#(<= ULTIMATE.start_main_~i~5 36), 133590#(<= ULTIMATE.start_main_~i~5 41), 133591#(<= ULTIMATE.start_main_~i~5 42), 133588#(<= ULTIMATE.start_main_~i~5 39), 133589#(<= ULTIMATE.start_main_~i~5 40), 133594#(<= ULTIMATE.start_main_~i~5 45), 133595#(<= ULTIMATE.start_main_~i~5 46), 133592#(<= ULTIMATE.start_main_~i~5 43), 133593#(<= ULTIMATE.start_main_~i~5 44), 133598#(<= ULTIMATE.start_main_~i~5 49), 133599#(<= ULTIMATE.start_main_~i~5 50), 133596#(<= ULTIMATE.start_main_~i~5 47), 133597#(<= ULTIMATE.start_main_~i~5 48), 133602#(<= ULTIMATE.start_main_~i~5 53), 133603#(<= ULTIMATE.start_main_~i~5 54), 133600#(<= ULTIMATE.start_main_~i~5 51), 133601#(<= ULTIMATE.start_main_~i~5 52), 133606#(<= ULTIMATE.start_main_~i~5 57), 133607#(<= ULTIMATE.start_main_~i~5 58), 133604#(<= ULTIMATE.start_main_~i~5 55), 133605#(<= ULTIMATE.start_main_~i~5 56), 133610#(<= ULTIMATE.start_main_~i~5 61), 133611#(<= ULTIMATE.start_main_~i~5 62), 133608#(<= ULTIMATE.start_main_~i~5 59), 133609#(<= ULTIMATE.start_main_~i~5 60), 133614#(<= ULTIMATE.start_main_~i~5 65), 133615#(<= ULTIMATE.start_main_~i~5 66), 133612#(<= ULTIMATE.start_main_~i~5 63), 133613#(<= ULTIMATE.start_main_~i~5 64), 133618#(<= ULTIMATE.start_main_~i~5 69), 133619#(<= ULTIMATE.start_main_~i~5 70), 133616#(<= ULTIMATE.start_main_~i~5 67), 133617#(<= ULTIMATE.start_main_~i~5 68), 133622#(<= ULTIMATE.start_main_~i~5 73), 133623#(<= ULTIMATE.start_main_~i~5 74), 133620#(<= ULTIMATE.start_main_~i~5 71), 133621#(<= ULTIMATE.start_main_~i~5 72), 133626#(<= ULTIMATE.start_main_~i~5 77), 133627#(<= ULTIMATE.start_main_~i~5 78), 133624#(<= ULTIMATE.start_main_~i~5 75), 133625#(<= ULTIMATE.start_main_~i~5 76), 133630#(<= ULTIMATE.start_main_~i~5 81), 133631#(<= ULTIMATE.start_main_~i~5 82), 133628#(<= ULTIMATE.start_main_~i~5 79), 133629#(<= ULTIMATE.start_main_~i~5 80)] [2018-07-23 13:42:29,612 INFO L134 CoverageAnalysis]: Checked inductivity of 10965 backedges. 7310 proven. 3655 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:29,613 INFO L450 AbstractCegarLoop]: Interpolant automaton has 174 states [2018-07-23 13:42:29,614 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 174 interpolants. [2018-07-23 13:42:29,616 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7655, Invalid=22447, Unknown=0, NotChecked=0, Total=30102 [2018-07-23 13:42:29,616 INFO L87 Difference]: Start difference. First operand 261 states and 262 transitions. Second operand 174 states. [2018-07-23 13:42:30,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:42:30,308 INFO L93 Difference]: Finished difference Result 437 states and 439 transitions. [2018-07-23 13:42:30,308 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 174 states. [2018-07-23 13:42:30,308 INFO L78 Accepts]: Start accepts. Automaton has 174 states. Word has length 260 [2018-07-23 13:42:30,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:42:30,309 INFO L225 Difference]: With dead ends: 437 [2018-07-23 13:42:30,309 INFO L226 Difference]: Without dead ends: 262 [2018-07-23 13:42:30,312 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 258 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10880 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=15309, Invalid=52031, Unknown=0, NotChecked=0, Total=67340 [2018-07-23 13:42:30,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2018-07-23 13:42:30,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2018-07-23 13:42:30,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2018-07-23 13:42:30,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 263 transitions. [2018-07-23 13:42:30,341 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 263 transitions. Word has length 260 [2018-07-23 13:42:30,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:42:30,341 INFO L471 AbstractCegarLoop]: Abstraction has 262 states and 263 transitions. [2018-07-23 13:42:30,341 INFO L472 AbstractCegarLoop]: Interpolant automaton has 174 states. [2018-07-23 13:42:30,341 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 263 transitions. [2018-07-23 13:42:30,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2018-07-23 13:42:30,342 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:42:30,342 INFO L357 BasicCegarLoop]: trace histogram [86, 86, 85, 1, 1, 1, 1] [2018-07-23 13:42:30,342 INFO L414 AbstractCegarLoop]: === Iteration 172 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:42:30,342 INFO L82 PathProgramCache]: Analyzing trace with hash 130229283, now seen corresponding path program 170 times [2018-07-23 13:42:30,342 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:42:30,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:42:30,725 INFO L134 CoverageAnalysis]: Checked inductivity of 11051 backedges. 3741 proven. 7310 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:30,725 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:42:30,725 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [89] total 89 [2018-07-23 13:42:30,725 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:42:30,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:30,726 INFO L185 omatonBuilderFactory]: Interpolants [135298#(<= 5 ULTIMATE.start_main_~k~5), 135299#(<= 6 ULTIMATE.start_main_~k~5), 135296#(<= 3 ULTIMATE.start_main_~k~5), 135297#(<= 4 ULTIMATE.start_main_~k~5), 135302#(<= 9 ULTIMATE.start_main_~k~5), 135303#(<= 10 ULTIMATE.start_main_~k~5), 135300#(<= 7 ULTIMATE.start_main_~k~5), 135301#(<= 8 ULTIMATE.start_main_~k~5), 135306#(<= 13 ULTIMATE.start_main_~k~5), 135307#(<= 14 ULTIMATE.start_main_~k~5), 135304#(<= 11 ULTIMATE.start_main_~k~5), 135305#(<= 12 ULTIMATE.start_main_~k~5), 135310#(<= 17 ULTIMATE.start_main_~k~5), 135311#(<= 18 ULTIMATE.start_main_~k~5), 135308#(<= 15 ULTIMATE.start_main_~k~5), 135309#(<= 16 ULTIMATE.start_main_~k~5), 135314#(<= 21 ULTIMATE.start_main_~k~5), 135315#(<= 22 ULTIMATE.start_main_~k~5), 135312#(<= 19 ULTIMATE.start_main_~k~5), 135313#(<= 20 ULTIMATE.start_main_~k~5), 135318#(<= 25 ULTIMATE.start_main_~k~5), 135319#(<= 26 ULTIMATE.start_main_~k~5), 135316#(<= 23 ULTIMATE.start_main_~k~5), 135317#(<= 24 ULTIMATE.start_main_~k~5), 135322#(<= 29 ULTIMATE.start_main_~k~5), 135323#(<= 30 ULTIMATE.start_main_~k~5), 135320#(<= 27 ULTIMATE.start_main_~k~5), 135321#(<= 28 ULTIMATE.start_main_~k~5), 135326#(<= 33 ULTIMATE.start_main_~k~5), 135327#(<= 34 ULTIMATE.start_main_~k~5), 135324#(<= 31 ULTIMATE.start_main_~k~5), 135325#(<= 32 ULTIMATE.start_main_~k~5), 135330#(<= 37 ULTIMATE.start_main_~k~5), 135331#(<= 38 ULTIMATE.start_main_~k~5), 135328#(<= 35 ULTIMATE.start_main_~k~5), 135329#(<= 36 ULTIMATE.start_main_~k~5), 135334#(<= 41 ULTIMATE.start_main_~k~5), 135335#(<= 42 ULTIMATE.start_main_~k~5), 135332#(<= 39 ULTIMATE.start_main_~k~5), 135333#(<= 40 ULTIMATE.start_main_~k~5), 135338#(<= 45 ULTIMATE.start_main_~k~5), 135339#(<= 46 ULTIMATE.start_main_~k~5), 135336#(<= 43 ULTIMATE.start_main_~k~5), 135337#(<= 44 ULTIMATE.start_main_~k~5), 135342#(<= 49 ULTIMATE.start_main_~k~5), 135343#(<= 50 ULTIMATE.start_main_~k~5), 135340#(<= 47 ULTIMATE.start_main_~k~5), 135341#(<= 48 ULTIMATE.start_main_~k~5), 135346#(<= 53 ULTIMATE.start_main_~k~5), 135347#(<= 54 ULTIMATE.start_main_~k~5), 135344#(<= 51 ULTIMATE.start_main_~k~5), 135345#(<= 52 ULTIMATE.start_main_~k~5), 135350#(<= 57 ULTIMATE.start_main_~k~5), 135351#(<= 58 ULTIMATE.start_main_~k~5), 135348#(<= 55 ULTIMATE.start_main_~k~5), 135349#(<= 56 ULTIMATE.start_main_~k~5), 135354#(<= 61 ULTIMATE.start_main_~k~5), 135355#(<= 62 ULTIMATE.start_main_~k~5), 135352#(<= 59 ULTIMATE.start_main_~k~5), 135353#(<= 60 ULTIMATE.start_main_~k~5), 135358#(<= 65 ULTIMATE.start_main_~k~5), 135359#(<= 66 ULTIMATE.start_main_~k~5), 135356#(<= 63 ULTIMATE.start_main_~k~5), 135357#(<= 64 ULTIMATE.start_main_~k~5), 135362#(<= 69 ULTIMATE.start_main_~k~5), 135363#(<= 70 ULTIMATE.start_main_~k~5), 135360#(<= 67 ULTIMATE.start_main_~k~5), 135361#(<= 68 ULTIMATE.start_main_~k~5), 135366#(<= 73 ULTIMATE.start_main_~k~5), 135367#(<= 74 ULTIMATE.start_main_~k~5), 135364#(<= 71 ULTIMATE.start_main_~k~5), 135365#(<= 72 ULTIMATE.start_main_~k~5), 135370#(<= 77 ULTIMATE.start_main_~k~5), 135371#(<= 78 ULTIMATE.start_main_~k~5), 135368#(<= 75 ULTIMATE.start_main_~k~5), 135369#(<= 76 ULTIMATE.start_main_~k~5), 135374#(<= 81 ULTIMATE.start_main_~k~5), 135375#(<= 82 ULTIMATE.start_main_~k~5), 135372#(<= 79 ULTIMATE.start_main_~k~5), 135373#(<= 80 ULTIMATE.start_main_~k~5), 135378#(<= 85 ULTIMATE.start_main_~k~5), 135379#(<= 86 ULTIMATE.start_main_~k~5), 135376#(<= 83 ULTIMATE.start_main_~k~5), 135377#(<= 84 ULTIMATE.start_main_~k~5), 135380#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 135291#true, 135294#(<= 1 ULTIMATE.start_main_~k~5), 135295#(<= 2 ULTIMATE.start_main_~k~5), 135292#false, 135293#(<= 0 ULTIMATE.start_main_~k~5)] [2018-07-23 13:42:30,727 INFO L134 CoverageAnalysis]: Checked inductivity of 11051 backedges. 3741 proven. 7310 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:30,727 INFO L450 AbstractCegarLoop]: Interpolant automaton has 90 states [2018-07-23 13:42:30,727 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2018-07-23 13:42:30,728 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3918, Invalid=4092, Unknown=0, NotChecked=0, Total=8010 [2018-07-23 13:42:30,728 INFO L87 Difference]: Start difference. First operand 262 states and 263 transitions. Second operand 90 states. [2018-07-23 13:42:31,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:42:31,096 INFO L93 Difference]: Finished difference Result 270 states and 271 transitions. [2018-07-23 13:42:31,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 176 states. [2018-07-23 13:42:31,096 INFO L78 Accepts]: Start accepts. Automaton has 90 states. Word has length 261 [2018-07-23 13:42:31,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:42:31,096 INFO L225 Difference]: With dead ends: 270 [2018-07-23 13:42:31,097 INFO L226 Difference]: Without dead ends: 268 [2018-07-23 13:42:31,097 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 175 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7482 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11748, Invalid=19404, Unknown=0, NotChecked=0, Total=31152 [2018-07-23 13:42:31,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2018-07-23 13:42:31,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 264. [2018-07-23 13:42:31,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2018-07-23 13:42:31,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 265 transitions. [2018-07-23 13:42:31,126 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 265 transitions. Word has length 261 [2018-07-23 13:42:31,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:42:31,126 INFO L471 AbstractCegarLoop]: Abstraction has 264 states and 265 transitions. [2018-07-23 13:42:31,126 INFO L472 AbstractCegarLoop]: Interpolant automaton has 90 states. [2018-07-23 13:42:31,126 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 265 transitions. [2018-07-23 13:42:31,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2018-07-23 13:42:31,127 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:42:31,127 INFO L357 BasicCegarLoop]: trace histogram [87, 86, 86, 1, 1, 1, 1] [2018-07-23 13:42:31,127 INFO L414 AbstractCegarLoop]: === Iteration 173 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:42:31,127 INFO L82 PathProgramCache]: Analyzing trace with hash 596355403, now seen corresponding path program 171 times [2018-07-23 13:42:31,127 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:42:31,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:42:31,749 INFO L134 CoverageAnalysis]: Checked inductivity of 11223 backedges. 7482 proven. 3741 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:31,750 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:42:31,750 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [175] total 175 [2018-07-23 13:42:31,750 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:42:31,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:31,750 INFO L185 omatonBuilderFactory]: Interpolants [136706#(<= ULTIMATE.start_main_~i~5 81), 136707#(<= ULTIMATE.start_main_~i~5 82), 136704#(<= ULTIMATE.start_main_~i~5 79), 136705#(<= ULTIMATE.start_main_~i~5 80), 136710#(<= ULTIMATE.start_main_~i~5 85), 136711#(<= ULTIMATE.start_main_~i~5 86), 136708#(<= ULTIMATE.start_main_~i~5 83), 136709#(<= ULTIMATE.start_main_~i~5 84), 136714#(<= ULTIMATE.start_main_~j~5 84), 136715#(<= ULTIMATE.start_main_~j~5 83), 136712#(<= ULTIMATE.start_main_~j~5 86), 136713#(<= ULTIMATE.start_main_~j~5 85), 136718#(<= ULTIMATE.start_main_~j~5 80), 136719#(<= ULTIMATE.start_main_~j~5 79), 136716#(<= ULTIMATE.start_main_~j~5 82), 136717#(<= ULTIMATE.start_main_~j~5 81), 136722#(<= ULTIMATE.start_main_~j~5 76), 136723#(<= ULTIMATE.start_main_~j~5 75), 136720#(<= ULTIMATE.start_main_~j~5 78), 136721#(<= ULTIMATE.start_main_~j~5 77), 136726#(<= ULTIMATE.start_main_~j~5 72), 136727#(<= ULTIMATE.start_main_~j~5 71), 136724#(<= ULTIMATE.start_main_~j~5 74), 136725#(<= ULTIMATE.start_main_~j~5 73), 136730#(<= ULTIMATE.start_main_~j~5 68), 136731#(<= ULTIMATE.start_main_~j~5 67), 136728#(<= ULTIMATE.start_main_~j~5 70), 136729#(<= ULTIMATE.start_main_~j~5 69), 136734#(<= ULTIMATE.start_main_~j~5 64), 136735#(<= ULTIMATE.start_main_~j~5 63), 136732#(<= ULTIMATE.start_main_~j~5 66), 136733#(<= ULTIMATE.start_main_~j~5 65), 136738#(<= ULTIMATE.start_main_~j~5 60), 136739#(<= ULTIMATE.start_main_~j~5 59), 136736#(<= ULTIMATE.start_main_~j~5 62), 136737#(<= ULTIMATE.start_main_~j~5 61), 136742#(<= ULTIMATE.start_main_~j~5 56), 136743#(<= ULTIMATE.start_main_~j~5 55), 136740#(<= ULTIMATE.start_main_~j~5 58), 136741#(<= ULTIMATE.start_main_~j~5 57), 136746#(<= ULTIMATE.start_main_~j~5 52), 136747#(<= ULTIMATE.start_main_~j~5 51), 136744#(<= ULTIMATE.start_main_~j~5 54), 136745#(<= ULTIMATE.start_main_~j~5 53), 136750#(<= ULTIMATE.start_main_~j~5 48), 136751#(<= ULTIMATE.start_main_~j~5 47), 136748#(<= ULTIMATE.start_main_~j~5 50), 136749#(<= ULTIMATE.start_main_~j~5 49), 136754#(<= ULTIMATE.start_main_~j~5 44), 136755#(<= ULTIMATE.start_main_~j~5 43), 136752#(<= ULTIMATE.start_main_~j~5 46), 136753#(<= ULTIMATE.start_main_~j~5 45), 136758#(<= ULTIMATE.start_main_~j~5 40), 136759#(<= ULTIMATE.start_main_~j~5 39), 136756#(<= ULTIMATE.start_main_~j~5 42), 136757#(<= ULTIMATE.start_main_~j~5 41), 136762#(<= ULTIMATE.start_main_~j~5 36), 136763#(<= ULTIMATE.start_main_~j~5 35), 136760#(<= ULTIMATE.start_main_~j~5 38), 136761#(<= ULTIMATE.start_main_~j~5 37), 136766#(<= ULTIMATE.start_main_~j~5 32), 136767#(<= ULTIMATE.start_main_~j~5 31), 136764#(<= ULTIMATE.start_main_~j~5 34), 136765#(<= ULTIMATE.start_main_~j~5 33), 136770#(<= ULTIMATE.start_main_~j~5 28), 136771#(<= ULTIMATE.start_main_~j~5 27), 136768#(<= ULTIMATE.start_main_~j~5 30), 136769#(<= ULTIMATE.start_main_~j~5 29), 136774#(<= ULTIMATE.start_main_~j~5 24), 136775#(<= ULTIMATE.start_main_~j~5 23), 136772#(<= ULTIMATE.start_main_~j~5 26), 136773#(<= ULTIMATE.start_main_~j~5 25), 136778#(<= ULTIMATE.start_main_~j~5 20), 136779#(<= ULTIMATE.start_main_~j~5 19), 136776#(<= ULTIMATE.start_main_~j~5 22), 136777#(<= ULTIMATE.start_main_~j~5 21), 136782#(<= ULTIMATE.start_main_~j~5 16), 136783#(<= ULTIMATE.start_main_~j~5 15), 136780#(<= ULTIMATE.start_main_~j~5 18), 136781#(<= ULTIMATE.start_main_~j~5 17), 136786#(<= ULTIMATE.start_main_~j~5 12), 136787#(<= ULTIMATE.start_main_~j~5 11), 136784#(<= ULTIMATE.start_main_~j~5 14), 136785#(<= ULTIMATE.start_main_~j~5 13), 136790#(<= ULTIMATE.start_main_~j~5 8), 136791#(<= ULTIMATE.start_main_~j~5 7), 136788#(<= ULTIMATE.start_main_~j~5 10), 136789#(<= ULTIMATE.start_main_~j~5 9), 136794#(<= ULTIMATE.start_main_~j~5 4), 136795#(<= ULTIMATE.start_main_~j~5 3), 136792#(<= ULTIMATE.start_main_~j~5 6), 136793#(<= ULTIMATE.start_main_~j~5 5), 136798#(<= ULTIMATE.start_main_~j~5 0), 136796#(<= ULTIMATE.start_main_~j~5 2), 136797#(<= ULTIMATE.start_main_~j~5 1), 136623#true, 136626#(<= ULTIMATE.start_main_~i~5 1), 136627#(<= ULTIMATE.start_main_~i~5 2), 136624#false, 136625#(<= ULTIMATE.start_main_~i~5 0), 136630#(<= ULTIMATE.start_main_~i~5 5), 136631#(<= ULTIMATE.start_main_~i~5 6), 136628#(<= ULTIMATE.start_main_~i~5 3), 136629#(<= ULTIMATE.start_main_~i~5 4), 136634#(<= ULTIMATE.start_main_~i~5 9), 136635#(<= ULTIMATE.start_main_~i~5 10), 136632#(<= ULTIMATE.start_main_~i~5 7), 136633#(<= ULTIMATE.start_main_~i~5 8), 136638#(<= ULTIMATE.start_main_~i~5 13), 136639#(<= ULTIMATE.start_main_~i~5 14), 136636#(<= ULTIMATE.start_main_~i~5 11), 136637#(<= ULTIMATE.start_main_~i~5 12), 136642#(<= ULTIMATE.start_main_~i~5 17), 136643#(<= ULTIMATE.start_main_~i~5 18), 136640#(<= ULTIMATE.start_main_~i~5 15), 136641#(<= ULTIMATE.start_main_~i~5 16), 136646#(<= ULTIMATE.start_main_~i~5 21), 136647#(<= ULTIMATE.start_main_~i~5 22), 136644#(<= ULTIMATE.start_main_~i~5 19), 136645#(<= ULTIMATE.start_main_~i~5 20), 136650#(<= ULTIMATE.start_main_~i~5 25), 136651#(<= ULTIMATE.start_main_~i~5 26), 136648#(<= ULTIMATE.start_main_~i~5 23), 136649#(<= ULTIMATE.start_main_~i~5 24), 136654#(<= ULTIMATE.start_main_~i~5 29), 136655#(<= ULTIMATE.start_main_~i~5 30), 136652#(<= ULTIMATE.start_main_~i~5 27), 136653#(<= ULTIMATE.start_main_~i~5 28), 136658#(<= ULTIMATE.start_main_~i~5 33), 136659#(<= ULTIMATE.start_main_~i~5 34), 136656#(<= ULTIMATE.start_main_~i~5 31), 136657#(<= ULTIMATE.start_main_~i~5 32), 136662#(<= ULTIMATE.start_main_~i~5 37), 136663#(<= ULTIMATE.start_main_~i~5 38), 136660#(<= ULTIMATE.start_main_~i~5 35), 136661#(<= ULTIMATE.start_main_~i~5 36), 136666#(<= ULTIMATE.start_main_~i~5 41), 136667#(<= ULTIMATE.start_main_~i~5 42), 136664#(<= ULTIMATE.start_main_~i~5 39), 136665#(<= ULTIMATE.start_main_~i~5 40), 136670#(<= ULTIMATE.start_main_~i~5 45), 136671#(<= ULTIMATE.start_main_~i~5 46), 136668#(<= ULTIMATE.start_main_~i~5 43), 136669#(<= ULTIMATE.start_main_~i~5 44), 136674#(<= ULTIMATE.start_main_~i~5 49), 136675#(<= ULTIMATE.start_main_~i~5 50), 136672#(<= ULTIMATE.start_main_~i~5 47), 136673#(<= ULTIMATE.start_main_~i~5 48), 136678#(<= ULTIMATE.start_main_~i~5 53), 136679#(<= ULTIMATE.start_main_~i~5 54), 136676#(<= ULTIMATE.start_main_~i~5 51), 136677#(<= ULTIMATE.start_main_~i~5 52), 136682#(<= ULTIMATE.start_main_~i~5 57), 136683#(<= ULTIMATE.start_main_~i~5 58), 136680#(<= ULTIMATE.start_main_~i~5 55), 136681#(<= ULTIMATE.start_main_~i~5 56), 136686#(<= ULTIMATE.start_main_~i~5 61), 136687#(<= ULTIMATE.start_main_~i~5 62), 136684#(<= ULTIMATE.start_main_~i~5 59), 136685#(<= ULTIMATE.start_main_~i~5 60), 136690#(<= ULTIMATE.start_main_~i~5 65), 136691#(<= ULTIMATE.start_main_~i~5 66), 136688#(<= ULTIMATE.start_main_~i~5 63), 136689#(<= ULTIMATE.start_main_~i~5 64), 136694#(<= ULTIMATE.start_main_~i~5 69), 136695#(<= ULTIMATE.start_main_~i~5 70), 136692#(<= ULTIMATE.start_main_~i~5 67), 136693#(<= ULTIMATE.start_main_~i~5 68), 136698#(<= ULTIMATE.start_main_~i~5 73), 136699#(<= ULTIMATE.start_main_~i~5 74), 136696#(<= ULTIMATE.start_main_~i~5 71), 136697#(<= ULTIMATE.start_main_~i~5 72), 136702#(<= ULTIMATE.start_main_~i~5 77), 136703#(<= ULTIMATE.start_main_~i~5 78), 136700#(<= ULTIMATE.start_main_~i~5 75), 136701#(<= ULTIMATE.start_main_~i~5 76)] [2018-07-23 13:42:31,751 INFO L134 CoverageAnalysis]: Checked inductivity of 11223 backedges. 7482 proven. 3741 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:31,751 INFO L450 AbstractCegarLoop]: Interpolant automaton has 176 states [2018-07-23 13:42:31,752 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 176 interpolants. [2018-07-23 13:42:31,753 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7831, Invalid=22969, Unknown=0, NotChecked=0, Total=30800 [2018-07-23 13:42:31,753 INFO L87 Difference]: Start difference. First operand 264 states and 265 transitions. Second operand 176 states. [2018-07-23 13:42:32,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:42:32,479 INFO L93 Difference]: Finished difference Result 442 states and 444 transitions. [2018-07-23 13:42:32,479 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 176 states. [2018-07-23 13:42:32,479 INFO L78 Accepts]: Start accepts. Automaton has 176 states. Word has length 263 [2018-07-23 13:42:32,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:42:32,480 INFO L225 Difference]: With dead ends: 442 [2018-07-23 13:42:32,480 INFO L226 Difference]: Without dead ends: 265 [2018-07-23 13:42:32,484 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 261 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11137 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=15661, Invalid=53245, Unknown=0, NotChecked=0, Total=68906 [2018-07-23 13:42:32,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2018-07-23 13:42:32,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 265. [2018-07-23 13:42:32,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2018-07-23 13:42:32,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 266 transitions. [2018-07-23 13:42:32,514 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 266 transitions. Word has length 263 [2018-07-23 13:42:32,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:42:32,514 INFO L471 AbstractCegarLoop]: Abstraction has 265 states and 266 transitions. [2018-07-23 13:42:32,514 INFO L472 AbstractCegarLoop]: Interpolant automaton has 176 states. [2018-07-23 13:42:32,514 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 266 transitions. [2018-07-23 13:42:32,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2018-07-23 13:42:32,515 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:42:32,515 INFO L357 BasicCegarLoop]: trace histogram [87, 87, 86, 1, 1, 1, 1] [2018-07-23 13:42:32,515 INFO L414 AbstractCegarLoop]: === Iteration 174 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:42:32,515 INFO L82 PathProgramCache]: Analyzing trace with hash -1043123278, now seen corresponding path program 172 times [2018-07-23 13:42:32,515 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:42:32,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:42:32,905 INFO L134 CoverageAnalysis]: Checked inductivity of 11310 backedges. 3828 proven. 7482 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:32,905 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:42:32,905 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [90] total 90 [2018-07-23 13:42:32,905 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:42:32,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:32,906 INFO L185 omatonBuilderFactory]: Interpolants [138387#true, 138390#(<= 1 ULTIMATE.start_main_~k~5), 138391#(<= 2 ULTIMATE.start_main_~k~5), 138388#false, 138389#(<= 0 ULTIMATE.start_main_~k~5), 138394#(<= 5 ULTIMATE.start_main_~k~5), 138395#(<= 6 ULTIMATE.start_main_~k~5), 138392#(<= 3 ULTIMATE.start_main_~k~5), 138393#(<= 4 ULTIMATE.start_main_~k~5), 138398#(<= 9 ULTIMATE.start_main_~k~5), 138399#(<= 10 ULTIMATE.start_main_~k~5), 138396#(<= 7 ULTIMATE.start_main_~k~5), 138397#(<= 8 ULTIMATE.start_main_~k~5), 138402#(<= 13 ULTIMATE.start_main_~k~5), 138403#(<= 14 ULTIMATE.start_main_~k~5), 138400#(<= 11 ULTIMATE.start_main_~k~5), 138401#(<= 12 ULTIMATE.start_main_~k~5), 138406#(<= 17 ULTIMATE.start_main_~k~5), 138407#(<= 18 ULTIMATE.start_main_~k~5), 138404#(<= 15 ULTIMATE.start_main_~k~5), 138405#(<= 16 ULTIMATE.start_main_~k~5), 138410#(<= 21 ULTIMATE.start_main_~k~5), 138411#(<= 22 ULTIMATE.start_main_~k~5), 138408#(<= 19 ULTIMATE.start_main_~k~5), 138409#(<= 20 ULTIMATE.start_main_~k~5), 138414#(<= 25 ULTIMATE.start_main_~k~5), 138415#(<= 26 ULTIMATE.start_main_~k~5), 138412#(<= 23 ULTIMATE.start_main_~k~5), 138413#(<= 24 ULTIMATE.start_main_~k~5), 138418#(<= 29 ULTIMATE.start_main_~k~5), 138419#(<= 30 ULTIMATE.start_main_~k~5), 138416#(<= 27 ULTIMATE.start_main_~k~5), 138417#(<= 28 ULTIMATE.start_main_~k~5), 138422#(<= 33 ULTIMATE.start_main_~k~5), 138423#(<= 34 ULTIMATE.start_main_~k~5), 138420#(<= 31 ULTIMATE.start_main_~k~5), 138421#(<= 32 ULTIMATE.start_main_~k~5), 138426#(<= 37 ULTIMATE.start_main_~k~5), 138427#(<= 38 ULTIMATE.start_main_~k~5), 138424#(<= 35 ULTIMATE.start_main_~k~5), 138425#(<= 36 ULTIMATE.start_main_~k~5), 138430#(<= 41 ULTIMATE.start_main_~k~5), 138431#(<= 42 ULTIMATE.start_main_~k~5), 138428#(<= 39 ULTIMATE.start_main_~k~5), 138429#(<= 40 ULTIMATE.start_main_~k~5), 138434#(<= 45 ULTIMATE.start_main_~k~5), 138435#(<= 46 ULTIMATE.start_main_~k~5), 138432#(<= 43 ULTIMATE.start_main_~k~5), 138433#(<= 44 ULTIMATE.start_main_~k~5), 138438#(<= 49 ULTIMATE.start_main_~k~5), 138439#(<= 50 ULTIMATE.start_main_~k~5), 138436#(<= 47 ULTIMATE.start_main_~k~5), 138437#(<= 48 ULTIMATE.start_main_~k~5), 138442#(<= 53 ULTIMATE.start_main_~k~5), 138443#(<= 54 ULTIMATE.start_main_~k~5), 138440#(<= 51 ULTIMATE.start_main_~k~5), 138441#(<= 52 ULTIMATE.start_main_~k~5), 138446#(<= 57 ULTIMATE.start_main_~k~5), 138447#(<= 58 ULTIMATE.start_main_~k~5), 138444#(<= 55 ULTIMATE.start_main_~k~5), 138445#(<= 56 ULTIMATE.start_main_~k~5), 138450#(<= 61 ULTIMATE.start_main_~k~5), 138451#(<= 62 ULTIMATE.start_main_~k~5), 138448#(<= 59 ULTIMATE.start_main_~k~5), 138449#(<= 60 ULTIMATE.start_main_~k~5), 138454#(<= 65 ULTIMATE.start_main_~k~5), 138455#(<= 66 ULTIMATE.start_main_~k~5), 138452#(<= 63 ULTIMATE.start_main_~k~5), 138453#(<= 64 ULTIMATE.start_main_~k~5), 138458#(<= 69 ULTIMATE.start_main_~k~5), 138459#(<= 70 ULTIMATE.start_main_~k~5), 138456#(<= 67 ULTIMATE.start_main_~k~5), 138457#(<= 68 ULTIMATE.start_main_~k~5), 138462#(<= 73 ULTIMATE.start_main_~k~5), 138463#(<= 74 ULTIMATE.start_main_~k~5), 138460#(<= 71 ULTIMATE.start_main_~k~5), 138461#(<= 72 ULTIMATE.start_main_~k~5), 138466#(<= 77 ULTIMATE.start_main_~k~5), 138467#(<= 78 ULTIMATE.start_main_~k~5), 138464#(<= 75 ULTIMATE.start_main_~k~5), 138465#(<= 76 ULTIMATE.start_main_~k~5), 138470#(<= 81 ULTIMATE.start_main_~k~5), 138471#(<= 82 ULTIMATE.start_main_~k~5), 138468#(<= 79 ULTIMATE.start_main_~k~5), 138469#(<= 80 ULTIMATE.start_main_~k~5), 138474#(<= 85 ULTIMATE.start_main_~k~5), 138475#(<= 86 ULTIMATE.start_main_~k~5), 138472#(<= 83 ULTIMATE.start_main_~k~5), 138473#(<= 84 ULTIMATE.start_main_~k~5), 138476#(<= 87 ULTIMATE.start_main_~k~5), 138477#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond)] [2018-07-23 13:42:32,906 INFO L134 CoverageAnalysis]: Checked inductivity of 11310 backedges. 3828 proven. 7482 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:32,906 INFO L450 AbstractCegarLoop]: Interpolant automaton has 91 states [2018-07-23 13:42:32,907 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2018-07-23 13:42:32,907 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4007, Invalid=4183, Unknown=0, NotChecked=0, Total=8190 [2018-07-23 13:42:32,907 INFO L87 Difference]: Start difference. First operand 265 states and 266 transitions. Second operand 91 states. [2018-07-23 13:42:33,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:42:33,219 INFO L93 Difference]: Finished difference Result 273 states and 274 transitions. [2018-07-23 13:42:33,219 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 178 states. [2018-07-23 13:42:33,219 INFO L78 Accepts]: Start accepts. Automaton has 91 states. Word has length 264 [2018-07-23 13:42:33,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:42:33,219 INFO L225 Difference]: With dead ends: 273 [2018-07-23 13:42:33,219 INFO L226 Difference]: Without dead ends: 271 [2018-07-23 13:42:33,221 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 177 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7656 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=12015, Invalid=19847, Unknown=0, NotChecked=0, Total=31862 [2018-07-23 13:42:33,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2018-07-23 13:42:33,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 267. [2018-07-23 13:42:33,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2018-07-23 13:42:33,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 268 transitions. [2018-07-23 13:42:33,250 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 268 transitions. Word has length 264 [2018-07-23 13:42:33,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:42:33,250 INFO L471 AbstractCegarLoop]: Abstraction has 267 states and 268 transitions. [2018-07-23 13:42:33,251 INFO L472 AbstractCegarLoop]: Interpolant automaton has 91 states. [2018-07-23 13:42:33,251 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 268 transitions. [2018-07-23 13:42:33,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2018-07-23 13:42:33,251 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:42:33,251 INFO L357 BasicCegarLoop]: trace histogram [88, 87, 87, 1, 1, 1, 1] [2018-07-23 13:42:33,251 INFO L414 AbstractCegarLoop]: === Iteration 175 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:42:33,252 INFO L82 PathProgramCache]: Analyzing trace with hash -1714024166, now seen corresponding path program 173 times [2018-07-23 13:42:33,252 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:42:33,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:42:33,905 INFO L134 CoverageAnalysis]: Checked inductivity of 11484 backedges. 7656 proven. 3828 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:33,906 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:42:33,906 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [177] total 177 [2018-07-23 13:42:33,906 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:42:33,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:33,906 INFO L185 omatonBuilderFactory]: Interpolants [139778#(<= ULTIMATE.start_main_~i~5 42), 139779#(<= ULTIMATE.start_main_~i~5 43), 139776#(<= ULTIMATE.start_main_~i~5 40), 139777#(<= ULTIMATE.start_main_~i~5 41), 139782#(<= ULTIMATE.start_main_~i~5 46), 139783#(<= ULTIMATE.start_main_~i~5 47), 139780#(<= ULTIMATE.start_main_~i~5 44), 139781#(<= ULTIMATE.start_main_~i~5 45), 139786#(<= ULTIMATE.start_main_~i~5 50), 139787#(<= ULTIMATE.start_main_~i~5 51), 139784#(<= ULTIMATE.start_main_~i~5 48), 139785#(<= ULTIMATE.start_main_~i~5 49), 139790#(<= ULTIMATE.start_main_~i~5 54), 139791#(<= ULTIMATE.start_main_~i~5 55), 139788#(<= ULTIMATE.start_main_~i~5 52), 139789#(<= ULTIMATE.start_main_~i~5 53), 139794#(<= ULTIMATE.start_main_~i~5 58), 139795#(<= ULTIMATE.start_main_~i~5 59), 139792#(<= ULTIMATE.start_main_~i~5 56), 139793#(<= ULTIMATE.start_main_~i~5 57), 139798#(<= ULTIMATE.start_main_~i~5 62), 139799#(<= ULTIMATE.start_main_~i~5 63), 139796#(<= ULTIMATE.start_main_~i~5 60), 139797#(<= ULTIMATE.start_main_~i~5 61), 139802#(<= ULTIMATE.start_main_~i~5 66), 139803#(<= ULTIMATE.start_main_~i~5 67), 139800#(<= ULTIMATE.start_main_~i~5 64), 139801#(<= ULTIMATE.start_main_~i~5 65), 139806#(<= ULTIMATE.start_main_~i~5 70), 139807#(<= ULTIMATE.start_main_~i~5 71), 139804#(<= ULTIMATE.start_main_~i~5 68), 139805#(<= ULTIMATE.start_main_~i~5 69), 139810#(<= ULTIMATE.start_main_~i~5 74), 139811#(<= ULTIMATE.start_main_~i~5 75), 139808#(<= ULTIMATE.start_main_~i~5 72), 139809#(<= ULTIMATE.start_main_~i~5 73), 139814#(<= ULTIMATE.start_main_~i~5 78), 139815#(<= ULTIMATE.start_main_~i~5 79), 139812#(<= ULTIMATE.start_main_~i~5 76), 139813#(<= ULTIMATE.start_main_~i~5 77), 139818#(<= ULTIMATE.start_main_~i~5 82), 139819#(<= ULTIMATE.start_main_~i~5 83), 139816#(<= ULTIMATE.start_main_~i~5 80), 139817#(<= ULTIMATE.start_main_~i~5 81), 139822#(<= ULTIMATE.start_main_~i~5 86), 139823#(<= ULTIMATE.start_main_~i~5 87), 139820#(<= ULTIMATE.start_main_~i~5 84), 139821#(<= ULTIMATE.start_main_~i~5 85), 139826#(<= ULTIMATE.start_main_~j~5 85), 139827#(<= ULTIMATE.start_main_~j~5 84), 139824#(<= ULTIMATE.start_main_~j~5 87), 139825#(<= ULTIMATE.start_main_~j~5 86), 139830#(<= ULTIMATE.start_main_~j~5 81), 139831#(<= ULTIMATE.start_main_~j~5 80), 139828#(<= ULTIMATE.start_main_~j~5 83), 139829#(<= ULTIMATE.start_main_~j~5 82), 139834#(<= ULTIMATE.start_main_~j~5 77), 139835#(<= ULTIMATE.start_main_~j~5 76), 139832#(<= ULTIMATE.start_main_~j~5 79), 139833#(<= ULTIMATE.start_main_~j~5 78), 139838#(<= ULTIMATE.start_main_~j~5 73), 139839#(<= ULTIMATE.start_main_~j~5 72), 139836#(<= ULTIMATE.start_main_~j~5 75), 139837#(<= ULTIMATE.start_main_~j~5 74), 139842#(<= ULTIMATE.start_main_~j~5 69), 139843#(<= ULTIMATE.start_main_~j~5 68), 139840#(<= ULTIMATE.start_main_~j~5 71), 139841#(<= ULTIMATE.start_main_~j~5 70), 139846#(<= ULTIMATE.start_main_~j~5 65), 139847#(<= ULTIMATE.start_main_~j~5 64), 139844#(<= ULTIMATE.start_main_~j~5 67), 139845#(<= ULTIMATE.start_main_~j~5 66), 139850#(<= ULTIMATE.start_main_~j~5 61), 139851#(<= ULTIMATE.start_main_~j~5 60), 139848#(<= ULTIMATE.start_main_~j~5 63), 139849#(<= ULTIMATE.start_main_~j~5 62), 139854#(<= ULTIMATE.start_main_~j~5 57), 139855#(<= ULTIMATE.start_main_~j~5 56), 139852#(<= ULTIMATE.start_main_~j~5 59), 139853#(<= ULTIMATE.start_main_~j~5 58), 139858#(<= ULTIMATE.start_main_~j~5 53), 139859#(<= ULTIMATE.start_main_~j~5 52), 139856#(<= ULTIMATE.start_main_~j~5 55), 139857#(<= ULTIMATE.start_main_~j~5 54), 139862#(<= ULTIMATE.start_main_~j~5 49), 139863#(<= ULTIMATE.start_main_~j~5 48), 139860#(<= ULTIMATE.start_main_~j~5 51), 139861#(<= ULTIMATE.start_main_~j~5 50), 139866#(<= ULTIMATE.start_main_~j~5 45), 139867#(<= ULTIMATE.start_main_~j~5 44), 139864#(<= ULTIMATE.start_main_~j~5 47), 139865#(<= ULTIMATE.start_main_~j~5 46), 139870#(<= ULTIMATE.start_main_~j~5 41), 139871#(<= ULTIMATE.start_main_~j~5 40), 139868#(<= ULTIMATE.start_main_~j~5 43), 139869#(<= ULTIMATE.start_main_~j~5 42), 139874#(<= ULTIMATE.start_main_~j~5 37), 139875#(<= ULTIMATE.start_main_~j~5 36), 139872#(<= ULTIMATE.start_main_~j~5 39), 139873#(<= ULTIMATE.start_main_~j~5 38), 139878#(<= ULTIMATE.start_main_~j~5 33), 139879#(<= ULTIMATE.start_main_~j~5 32), 139876#(<= ULTIMATE.start_main_~j~5 35), 139877#(<= ULTIMATE.start_main_~j~5 34), 139882#(<= ULTIMATE.start_main_~j~5 29), 139883#(<= ULTIMATE.start_main_~j~5 28), 139880#(<= ULTIMATE.start_main_~j~5 31), 139881#(<= ULTIMATE.start_main_~j~5 30), 139886#(<= ULTIMATE.start_main_~j~5 25), 139887#(<= ULTIMATE.start_main_~j~5 24), 139884#(<= ULTIMATE.start_main_~j~5 27), 139885#(<= ULTIMATE.start_main_~j~5 26), 139890#(<= ULTIMATE.start_main_~j~5 21), 139891#(<= ULTIMATE.start_main_~j~5 20), 139888#(<= ULTIMATE.start_main_~j~5 23), 139889#(<= ULTIMATE.start_main_~j~5 22), 139894#(<= ULTIMATE.start_main_~j~5 17), 139895#(<= ULTIMATE.start_main_~j~5 16), 139892#(<= ULTIMATE.start_main_~j~5 19), 139893#(<= ULTIMATE.start_main_~j~5 18), 139898#(<= ULTIMATE.start_main_~j~5 13), 139899#(<= ULTIMATE.start_main_~j~5 12), 139896#(<= ULTIMATE.start_main_~j~5 15), 139897#(<= ULTIMATE.start_main_~j~5 14), 139902#(<= ULTIMATE.start_main_~j~5 9), 139903#(<= ULTIMATE.start_main_~j~5 8), 139900#(<= ULTIMATE.start_main_~j~5 11), 139901#(<= ULTIMATE.start_main_~j~5 10), 139906#(<= ULTIMATE.start_main_~j~5 5), 139907#(<= ULTIMATE.start_main_~j~5 4), 139904#(<= ULTIMATE.start_main_~j~5 7), 139905#(<= ULTIMATE.start_main_~j~5 6), 139910#(<= ULTIMATE.start_main_~j~5 1), 139911#(<= ULTIMATE.start_main_~j~5 0), 139908#(<= ULTIMATE.start_main_~j~5 3), 139909#(<= ULTIMATE.start_main_~j~5 2), 139734#true, 139735#false, 139738#(<= ULTIMATE.start_main_~i~5 2), 139739#(<= ULTIMATE.start_main_~i~5 3), 139736#(<= ULTIMATE.start_main_~i~5 0), 139737#(<= ULTIMATE.start_main_~i~5 1), 139742#(<= ULTIMATE.start_main_~i~5 6), 139743#(<= ULTIMATE.start_main_~i~5 7), 139740#(<= ULTIMATE.start_main_~i~5 4), 139741#(<= ULTIMATE.start_main_~i~5 5), 139746#(<= ULTIMATE.start_main_~i~5 10), 139747#(<= ULTIMATE.start_main_~i~5 11), 139744#(<= ULTIMATE.start_main_~i~5 8), 139745#(<= ULTIMATE.start_main_~i~5 9), 139750#(<= ULTIMATE.start_main_~i~5 14), 139751#(<= ULTIMATE.start_main_~i~5 15), 139748#(<= ULTIMATE.start_main_~i~5 12), 139749#(<= ULTIMATE.start_main_~i~5 13), 139754#(<= ULTIMATE.start_main_~i~5 18), 139755#(<= ULTIMATE.start_main_~i~5 19), 139752#(<= ULTIMATE.start_main_~i~5 16), 139753#(<= ULTIMATE.start_main_~i~5 17), 139758#(<= ULTIMATE.start_main_~i~5 22), 139759#(<= ULTIMATE.start_main_~i~5 23), 139756#(<= ULTIMATE.start_main_~i~5 20), 139757#(<= ULTIMATE.start_main_~i~5 21), 139762#(<= ULTIMATE.start_main_~i~5 26), 139763#(<= ULTIMATE.start_main_~i~5 27), 139760#(<= ULTIMATE.start_main_~i~5 24), 139761#(<= ULTIMATE.start_main_~i~5 25), 139766#(<= ULTIMATE.start_main_~i~5 30), 139767#(<= ULTIMATE.start_main_~i~5 31), 139764#(<= ULTIMATE.start_main_~i~5 28), 139765#(<= ULTIMATE.start_main_~i~5 29), 139770#(<= ULTIMATE.start_main_~i~5 34), 139771#(<= ULTIMATE.start_main_~i~5 35), 139768#(<= ULTIMATE.start_main_~i~5 32), 139769#(<= ULTIMATE.start_main_~i~5 33), 139774#(<= ULTIMATE.start_main_~i~5 38), 139775#(<= ULTIMATE.start_main_~i~5 39), 139772#(<= ULTIMATE.start_main_~i~5 36), 139773#(<= ULTIMATE.start_main_~i~5 37)] [2018-07-23 13:42:33,907 INFO L134 CoverageAnalysis]: Checked inductivity of 11484 backedges. 7656 proven. 3828 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:33,907 INFO L450 AbstractCegarLoop]: Interpolant automaton has 178 states [2018-07-23 13:42:33,908 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 178 interpolants. [2018-07-23 13:42:33,909 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8009, Invalid=23497, Unknown=0, NotChecked=0, Total=31506 [2018-07-23 13:42:33,909 INFO L87 Difference]: Start difference. First operand 267 states and 268 transitions. Second operand 178 states. [2018-07-23 13:42:35,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:42:35,120 INFO L93 Difference]: Finished difference Result 447 states and 449 transitions. [2018-07-23 13:42:35,120 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 178 states. [2018-07-23 13:42:35,120 INFO L78 Accepts]: Start accepts. Automaton has 178 states. Word has length 266 [2018-07-23 13:42:35,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:42:35,121 INFO L225 Difference]: With dead ends: 447 [2018-07-23 13:42:35,121 INFO L226 Difference]: Without dead ends: 268 [2018-07-23 13:42:35,125 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 264 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11397 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=16017, Invalid=54473, Unknown=0, NotChecked=0, Total=70490 [2018-07-23 13:42:35,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2018-07-23 13:42:35,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 268. [2018-07-23 13:42:35,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2018-07-23 13:42:35,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 269 transitions. [2018-07-23 13:42:35,154 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 269 transitions. Word has length 266 [2018-07-23 13:42:35,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:42:35,154 INFO L471 AbstractCegarLoop]: Abstraction has 268 states and 269 transitions. [2018-07-23 13:42:35,154 INFO L472 AbstractCegarLoop]: Interpolant automaton has 178 states. [2018-07-23 13:42:35,154 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 269 transitions. [2018-07-23 13:42:35,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2018-07-23 13:42:35,155 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:42:35,155 INFO L357 BasicCegarLoop]: trace histogram [88, 88, 87, 1, 1, 1, 1] [2018-07-23 13:42:35,155 INFO L414 AbstractCegarLoop]: === Iteration 176 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:42:35,155 INFO L82 PathProgramCache]: Analyzing trace with hash -1055319725, now seen corresponding path program 174 times [2018-07-23 13:42:35,155 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:42:35,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:42:35,570 INFO L134 CoverageAnalysis]: Checked inductivity of 11572 backedges. 3916 proven. 7656 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:35,570 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:42:35,570 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [91] total 91 [2018-07-23 13:42:35,570 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:42:35,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:35,571 INFO L185 omatonBuilderFactory]: Interpolants [141570#(<= 50 ULTIMATE.start_main_~k~5), 141571#(<= 51 ULTIMATE.start_main_~k~5), 141568#(<= 48 ULTIMATE.start_main_~k~5), 141569#(<= 49 ULTIMATE.start_main_~k~5), 141574#(<= 54 ULTIMATE.start_main_~k~5), 141575#(<= 55 ULTIMATE.start_main_~k~5), 141572#(<= 52 ULTIMATE.start_main_~k~5), 141573#(<= 53 ULTIMATE.start_main_~k~5), 141578#(<= 58 ULTIMATE.start_main_~k~5), 141579#(<= 59 ULTIMATE.start_main_~k~5), 141576#(<= 56 ULTIMATE.start_main_~k~5), 141577#(<= 57 ULTIMATE.start_main_~k~5), 141582#(<= 62 ULTIMATE.start_main_~k~5), 141583#(<= 63 ULTIMATE.start_main_~k~5), 141580#(<= 60 ULTIMATE.start_main_~k~5), 141581#(<= 61 ULTIMATE.start_main_~k~5), 141586#(<= 66 ULTIMATE.start_main_~k~5), 141587#(<= 67 ULTIMATE.start_main_~k~5), 141584#(<= 64 ULTIMATE.start_main_~k~5), 141585#(<= 65 ULTIMATE.start_main_~k~5), 141590#(<= 70 ULTIMATE.start_main_~k~5), 141591#(<= 71 ULTIMATE.start_main_~k~5), 141588#(<= 68 ULTIMATE.start_main_~k~5), 141589#(<= 69 ULTIMATE.start_main_~k~5), 141594#(<= 74 ULTIMATE.start_main_~k~5), 141595#(<= 75 ULTIMATE.start_main_~k~5), 141592#(<= 72 ULTIMATE.start_main_~k~5), 141593#(<= 73 ULTIMATE.start_main_~k~5), 141598#(<= 78 ULTIMATE.start_main_~k~5), 141599#(<= 79 ULTIMATE.start_main_~k~5), 141596#(<= 76 ULTIMATE.start_main_~k~5), 141597#(<= 77 ULTIMATE.start_main_~k~5), 141602#(<= 82 ULTIMATE.start_main_~k~5), 141603#(<= 83 ULTIMATE.start_main_~k~5), 141600#(<= 80 ULTIMATE.start_main_~k~5), 141601#(<= 81 ULTIMATE.start_main_~k~5), 141606#(<= 86 ULTIMATE.start_main_~k~5), 141607#(<= 87 ULTIMATE.start_main_~k~5), 141604#(<= 84 ULTIMATE.start_main_~k~5), 141605#(<= 85 ULTIMATE.start_main_~k~5), 141608#(<= 88 ULTIMATE.start_main_~k~5), 141609#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 141518#true, 141519#false, 141522#(<= 2 ULTIMATE.start_main_~k~5), 141523#(<= 3 ULTIMATE.start_main_~k~5), 141520#(<= 0 ULTIMATE.start_main_~k~5), 141521#(<= 1 ULTIMATE.start_main_~k~5), 141526#(<= 6 ULTIMATE.start_main_~k~5), 141527#(<= 7 ULTIMATE.start_main_~k~5), 141524#(<= 4 ULTIMATE.start_main_~k~5), 141525#(<= 5 ULTIMATE.start_main_~k~5), 141530#(<= 10 ULTIMATE.start_main_~k~5), 141531#(<= 11 ULTIMATE.start_main_~k~5), 141528#(<= 8 ULTIMATE.start_main_~k~5), 141529#(<= 9 ULTIMATE.start_main_~k~5), 141534#(<= 14 ULTIMATE.start_main_~k~5), 141535#(<= 15 ULTIMATE.start_main_~k~5), 141532#(<= 12 ULTIMATE.start_main_~k~5), 141533#(<= 13 ULTIMATE.start_main_~k~5), 141538#(<= 18 ULTIMATE.start_main_~k~5), 141539#(<= 19 ULTIMATE.start_main_~k~5), 141536#(<= 16 ULTIMATE.start_main_~k~5), 141537#(<= 17 ULTIMATE.start_main_~k~5), 141542#(<= 22 ULTIMATE.start_main_~k~5), 141543#(<= 23 ULTIMATE.start_main_~k~5), 141540#(<= 20 ULTIMATE.start_main_~k~5), 141541#(<= 21 ULTIMATE.start_main_~k~5), 141546#(<= 26 ULTIMATE.start_main_~k~5), 141547#(<= 27 ULTIMATE.start_main_~k~5), 141544#(<= 24 ULTIMATE.start_main_~k~5), 141545#(<= 25 ULTIMATE.start_main_~k~5), 141550#(<= 30 ULTIMATE.start_main_~k~5), 141551#(<= 31 ULTIMATE.start_main_~k~5), 141548#(<= 28 ULTIMATE.start_main_~k~5), 141549#(<= 29 ULTIMATE.start_main_~k~5), 141554#(<= 34 ULTIMATE.start_main_~k~5), 141555#(<= 35 ULTIMATE.start_main_~k~5), 141552#(<= 32 ULTIMATE.start_main_~k~5), 141553#(<= 33 ULTIMATE.start_main_~k~5), 141558#(<= 38 ULTIMATE.start_main_~k~5), 141559#(<= 39 ULTIMATE.start_main_~k~5), 141556#(<= 36 ULTIMATE.start_main_~k~5), 141557#(<= 37 ULTIMATE.start_main_~k~5), 141562#(<= 42 ULTIMATE.start_main_~k~5), 141563#(<= 43 ULTIMATE.start_main_~k~5), 141560#(<= 40 ULTIMATE.start_main_~k~5), 141561#(<= 41 ULTIMATE.start_main_~k~5), 141566#(<= 46 ULTIMATE.start_main_~k~5), 141567#(<= 47 ULTIMATE.start_main_~k~5), 141564#(<= 44 ULTIMATE.start_main_~k~5), 141565#(<= 45 ULTIMATE.start_main_~k~5)] [2018-07-23 13:42:35,572 INFO L134 CoverageAnalysis]: Checked inductivity of 11572 backedges. 3916 proven. 7656 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:35,572 INFO L450 AbstractCegarLoop]: Interpolant automaton has 92 states [2018-07-23 13:42:35,572 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2018-07-23 13:42:35,572 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4097, Invalid=4275, Unknown=0, NotChecked=0, Total=8372 [2018-07-23 13:42:35,573 INFO L87 Difference]: Start difference. First operand 268 states and 269 transitions. Second operand 92 states. [2018-07-23 13:42:35,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:42:35,891 INFO L93 Difference]: Finished difference Result 276 states and 277 transitions. [2018-07-23 13:42:35,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 180 states. [2018-07-23 13:42:35,891 INFO L78 Accepts]: Start accepts. Automaton has 92 states. Word has length 267 [2018-07-23 13:42:35,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:42:35,891 INFO L225 Difference]: With dead ends: 276 [2018-07-23 13:42:35,891 INFO L226 Difference]: Without dead ends: 274 [2018-07-23 13:42:35,893 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 179 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7832 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=12285, Invalid=20295, Unknown=0, NotChecked=0, Total=32580 [2018-07-23 13:42:35,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2018-07-23 13:42:35,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 270. [2018-07-23 13:42:35,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2018-07-23 13:42:35,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 271 transitions. [2018-07-23 13:42:35,923 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 271 transitions. Word has length 267 [2018-07-23 13:42:35,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:42:35,923 INFO L471 AbstractCegarLoop]: Abstraction has 270 states and 271 transitions. [2018-07-23 13:42:35,923 INFO L472 AbstractCegarLoop]: Interpolant automaton has 92 states. [2018-07-23 13:42:35,923 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 271 transitions. [2018-07-23 13:42:35,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2018-07-23 13:42:35,924 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:42:35,924 INFO L357 BasicCegarLoop]: trace histogram [89, 88, 88, 1, 1, 1, 1] [2018-07-23 13:42:35,924 INFO L414 AbstractCegarLoop]: === Iteration 177 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:42:35,924 INFO L82 PathProgramCache]: Analyzing trace with hash -549907845, now seen corresponding path program 175 times [2018-07-23 13:42:35,924 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:42:36,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:42:36,585 INFO L134 CoverageAnalysis]: Checked inductivity of 11748 backedges. 7832 proven. 3916 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:36,585 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:42:36,585 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [179] total 179 [2018-07-23 13:42:36,585 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:42:36,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:36,586 INFO L185 omatonBuilderFactory]: Interpolants [142882#(<= ULTIMATE.start_main_~i~5 0), 142883#(<= ULTIMATE.start_main_~i~5 1), 142880#true, 142881#false, 142886#(<= ULTIMATE.start_main_~i~5 4), 142887#(<= ULTIMATE.start_main_~i~5 5), 142884#(<= ULTIMATE.start_main_~i~5 2), 142885#(<= ULTIMATE.start_main_~i~5 3), 142890#(<= ULTIMATE.start_main_~i~5 8), 142891#(<= ULTIMATE.start_main_~i~5 9), 142888#(<= ULTIMATE.start_main_~i~5 6), 142889#(<= ULTIMATE.start_main_~i~5 7), 142894#(<= ULTIMATE.start_main_~i~5 12), 142895#(<= ULTIMATE.start_main_~i~5 13), 142892#(<= ULTIMATE.start_main_~i~5 10), 142893#(<= ULTIMATE.start_main_~i~5 11), 142898#(<= ULTIMATE.start_main_~i~5 16), 142899#(<= ULTIMATE.start_main_~i~5 17), 142896#(<= ULTIMATE.start_main_~i~5 14), 142897#(<= ULTIMATE.start_main_~i~5 15), 142902#(<= ULTIMATE.start_main_~i~5 20), 142903#(<= ULTIMATE.start_main_~i~5 21), 142900#(<= ULTIMATE.start_main_~i~5 18), 142901#(<= ULTIMATE.start_main_~i~5 19), 142906#(<= ULTIMATE.start_main_~i~5 24), 142907#(<= ULTIMATE.start_main_~i~5 25), 142904#(<= ULTIMATE.start_main_~i~5 22), 142905#(<= ULTIMATE.start_main_~i~5 23), 142910#(<= ULTIMATE.start_main_~i~5 28), 142911#(<= ULTIMATE.start_main_~i~5 29), 142908#(<= ULTIMATE.start_main_~i~5 26), 142909#(<= ULTIMATE.start_main_~i~5 27), 142914#(<= ULTIMATE.start_main_~i~5 32), 142915#(<= ULTIMATE.start_main_~i~5 33), 142912#(<= ULTIMATE.start_main_~i~5 30), 142913#(<= ULTIMATE.start_main_~i~5 31), 142918#(<= ULTIMATE.start_main_~i~5 36), 142919#(<= ULTIMATE.start_main_~i~5 37), 142916#(<= ULTIMATE.start_main_~i~5 34), 142917#(<= ULTIMATE.start_main_~i~5 35), 142922#(<= ULTIMATE.start_main_~i~5 40), 142923#(<= ULTIMATE.start_main_~i~5 41), 142920#(<= ULTIMATE.start_main_~i~5 38), 142921#(<= ULTIMATE.start_main_~i~5 39), 142926#(<= ULTIMATE.start_main_~i~5 44), 142927#(<= ULTIMATE.start_main_~i~5 45), 142924#(<= ULTIMATE.start_main_~i~5 42), 142925#(<= ULTIMATE.start_main_~i~5 43), 142930#(<= ULTIMATE.start_main_~i~5 48), 142931#(<= ULTIMATE.start_main_~i~5 49), 142928#(<= ULTIMATE.start_main_~i~5 46), 142929#(<= ULTIMATE.start_main_~i~5 47), 142934#(<= ULTIMATE.start_main_~i~5 52), 142935#(<= ULTIMATE.start_main_~i~5 53), 142932#(<= ULTIMATE.start_main_~i~5 50), 142933#(<= ULTIMATE.start_main_~i~5 51), 142938#(<= ULTIMATE.start_main_~i~5 56), 142939#(<= ULTIMATE.start_main_~i~5 57), 142936#(<= ULTIMATE.start_main_~i~5 54), 142937#(<= ULTIMATE.start_main_~i~5 55), 142942#(<= ULTIMATE.start_main_~i~5 60), 142943#(<= ULTIMATE.start_main_~i~5 61), 142940#(<= ULTIMATE.start_main_~i~5 58), 142941#(<= ULTIMATE.start_main_~i~5 59), 142946#(<= ULTIMATE.start_main_~i~5 64), 142947#(<= ULTIMATE.start_main_~i~5 65), 142944#(<= ULTIMATE.start_main_~i~5 62), 142945#(<= ULTIMATE.start_main_~i~5 63), 142950#(<= ULTIMATE.start_main_~i~5 68), 142951#(<= ULTIMATE.start_main_~i~5 69), 142948#(<= ULTIMATE.start_main_~i~5 66), 142949#(<= ULTIMATE.start_main_~i~5 67), 142954#(<= ULTIMATE.start_main_~i~5 72), 142955#(<= ULTIMATE.start_main_~i~5 73), 142952#(<= ULTIMATE.start_main_~i~5 70), 142953#(<= ULTIMATE.start_main_~i~5 71), 142958#(<= ULTIMATE.start_main_~i~5 76), 142959#(<= ULTIMATE.start_main_~i~5 77), 142956#(<= ULTIMATE.start_main_~i~5 74), 142957#(<= ULTIMATE.start_main_~i~5 75), 142962#(<= ULTIMATE.start_main_~i~5 80), 142963#(<= ULTIMATE.start_main_~i~5 81), 142960#(<= ULTIMATE.start_main_~i~5 78), 142961#(<= ULTIMATE.start_main_~i~5 79), 142966#(<= ULTIMATE.start_main_~i~5 84), 142967#(<= ULTIMATE.start_main_~i~5 85), 142964#(<= ULTIMATE.start_main_~i~5 82), 142965#(<= ULTIMATE.start_main_~i~5 83), 142970#(<= ULTIMATE.start_main_~i~5 88), 142971#(<= ULTIMATE.start_main_~j~5 88), 142968#(<= ULTIMATE.start_main_~i~5 86), 142969#(<= ULTIMATE.start_main_~i~5 87), 142974#(<= ULTIMATE.start_main_~j~5 85), 142975#(<= ULTIMATE.start_main_~j~5 84), 142972#(<= ULTIMATE.start_main_~j~5 87), 142973#(<= ULTIMATE.start_main_~j~5 86), 142978#(<= ULTIMATE.start_main_~j~5 81), 142979#(<= ULTIMATE.start_main_~j~5 80), 142976#(<= ULTIMATE.start_main_~j~5 83), 142977#(<= ULTIMATE.start_main_~j~5 82), 142982#(<= ULTIMATE.start_main_~j~5 77), 142983#(<= ULTIMATE.start_main_~j~5 76), 142980#(<= ULTIMATE.start_main_~j~5 79), 142981#(<= ULTIMATE.start_main_~j~5 78), 142986#(<= ULTIMATE.start_main_~j~5 73), 142987#(<= ULTIMATE.start_main_~j~5 72), 142984#(<= ULTIMATE.start_main_~j~5 75), 142985#(<= ULTIMATE.start_main_~j~5 74), 142990#(<= ULTIMATE.start_main_~j~5 69), 142991#(<= ULTIMATE.start_main_~j~5 68), 142988#(<= ULTIMATE.start_main_~j~5 71), 142989#(<= ULTIMATE.start_main_~j~5 70), 142994#(<= ULTIMATE.start_main_~j~5 65), 142995#(<= ULTIMATE.start_main_~j~5 64), 142992#(<= ULTIMATE.start_main_~j~5 67), 142993#(<= ULTIMATE.start_main_~j~5 66), 142998#(<= ULTIMATE.start_main_~j~5 61), 142999#(<= ULTIMATE.start_main_~j~5 60), 142996#(<= ULTIMATE.start_main_~j~5 63), 142997#(<= ULTIMATE.start_main_~j~5 62), 143002#(<= ULTIMATE.start_main_~j~5 57), 143003#(<= ULTIMATE.start_main_~j~5 56), 143000#(<= ULTIMATE.start_main_~j~5 59), 143001#(<= ULTIMATE.start_main_~j~5 58), 143006#(<= ULTIMATE.start_main_~j~5 53), 143007#(<= ULTIMATE.start_main_~j~5 52), 143004#(<= ULTIMATE.start_main_~j~5 55), 143005#(<= ULTIMATE.start_main_~j~5 54), 143010#(<= ULTIMATE.start_main_~j~5 49), 143011#(<= ULTIMATE.start_main_~j~5 48), 143008#(<= ULTIMATE.start_main_~j~5 51), 143009#(<= ULTIMATE.start_main_~j~5 50), 143014#(<= ULTIMATE.start_main_~j~5 45), 143015#(<= ULTIMATE.start_main_~j~5 44), 143012#(<= ULTIMATE.start_main_~j~5 47), 143013#(<= ULTIMATE.start_main_~j~5 46), 143018#(<= ULTIMATE.start_main_~j~5 41), 143019#(<= ULTIMATE.start_main_~j~5 40), 143016#(<= ULTIMATE.start_main_~j~5 43), 143017#(<= ULTIMATE.start_main_~j~5 42), 143022#(<= ULTIMATE.start_main_~j~5 37), 143023#(<= ULTIMATE.start_main_~j~5 36), 143020#(<= ULTIMATE.start_main_~j~5 39), 143021#(<= ULTIMATE.start_main_~j~5 38), 143026#(<= ULTIMATE.start_main_~j~5 33), 143027#(<= ULTIMATE.start_main_~j~5 32), 143024#(<= ULTIMATE.start_main_~j~5 35), 143025#(<= ULTIMATE.start_main_~j~5 34), 143030#(<= ULTIMATE.start_main_~j~5 29), 143031#(<= ULTIMATE.start_main_~j~5 28), 143028#(<= ULTIMATE.start_main_~j~5 31), 143029#(<= ULTIMATE.start_main_~j~5 30), 143034#(<= ULTIMATE.start_main_~j~5 25), 143035#(<= ULTIMATE.start_main_~j~5 24), 143032#(<= ULTIMATE.start_main_~j~5 27), 143033#(<= ULTIMATE.start_main_~j~5 26), 143038#(<= ULTIMATE.start_main_~j~5 21), 143039#(<= ULTIMATE.start_main_~j~5 20), 143036#(<= ULTIMATE.start_main_~j~5 23), 143037#(<= ULTIMATE.start_main_~j~5 22), 143042#(<= ULTIMATE.start_main_~j~5 17), 143043#(<= ULTIMATE.start_main_~j~5 16), 143040#(<= ULTIMATE.start_main_~j~5 19), 143041#(<= ULTIMATE.start_main_~j~5 18), 143046#(<= ULTIMATE.start_main_~j~5 13), 143047#(<= ULTIMATE.start_main_~j~5 12), 143044#(<= ULTIMATE.start_main_~j~5 15), 143045#(<= ULTIMATE.start_main_~j~5 14), 143050#(<= ULTIMATE.start_main_~j~5 9), 143051#(<= ULTIMATE.start_main_~j~5 8), 143048#(<= ULTIMATE.start_main_~j~5 11), 143049#(<= ULTIMATE.start_main_~j~5 10), 143054#(<= ULTIMATE.start_main_~j~5 5), 143055#(<= ULTIMATE.start_main_~j~5 4), 143052#(<= ULTIMATE.start_main_~j~5 7), 143053#(<= ULTIMATE.start_main_~j~5 6), 143058#(<= ULTIMATE.start_main_~j~5 1), 143059#(<= ULTIMATE.start_main_~j~5 0), 143056#(<= ULTIMATE.start_main_~j~5 3), 143057#(<= ULTIMATE.start_main_~j~5 2)] [2018-07-23 13:42:36,586 INFO L134 CoverageAnalysis]: Checked inductivity of 11748 backedges. 7832 proven. 3916 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:36,587 INFO L450 AbstractCegarLoop]: Interpolant automaton has 180 states [2018-07-23 13:42:36,587 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 180 interpolants. [2018-07-23 13:42:36,588 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8189, Invalid=24031, Unknown=0, NotChecked=0, Total=32220 [2018-07-23 13:42:36,589 INFO L87 Difference]: Start difference. First operand 270 states and 271 transitions. Second operand 180 states. [2018-07-23 13:42:38,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:42:38,363 INFO L93 Difference]: Finished difference Result 452 states and 454 transitions. [2018-07-23 13:42:38,363 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 180 states. [2018-07-23 13:42:38,364 INFO L78 Accepts]: Start accepts. Automaton has 180 states. Word has length 269 [2018-07-23 13:42:38,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:42:38,364 INFO L225 Difference]: With dead ends: 452 [2018-07-23 13:42:38,364 INFO L226 Difference]: Without dead ends: 271 [2018-07-23 13:42:38,368 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 267 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11660 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=16377, Invalid=55715, Unknown=0, NotChecked=0, Total=72092 [2018-07-23 13:42:38,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2018-07-23 13:42:38,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 271. [2018-07-23 13:42:38,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2018-07-23 13:42:38,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 272 transitions. [2018-07-23 13:42:38,398 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 272 transitions. Word has length 269 [2018-07-23 13:42:38,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:42:38,398 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 272 transitions. [2018-07-23 13:42:38,398 INFO L472 AbstractCegarLoop]: Interpolant automaton has 180 states. [2018-07-23 13:42:38,398 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 272 transitions. [2018-07-23 13:42:38,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2018-07-23 13:42:38,399 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:42:38,399 INFO L357 BasicCegarLoop]: trace histogram [89, 89, 88, 1, 1, 1, 1] [2018-07-23 13:42:38,399 INFO L414 AbstractCegarLoop]: === Iteration 178 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:42:38,399 INFO L82 PathProgramCache]: Analyzing trace with hash -791481438, now seen corresponding path program 176 times [2018-07-23 13:42:38,399 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:42:38,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:42:38,845 INFO L134 CoverageAnalysis]: Checked inductivity of 11837 backedges. 4005 proven. 7832 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:38,846 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:42:38,846 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [92] total 92 [2018-07-23 13:42:38,846 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:42:38,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:38,846 INFO L185 omatonBuilderFactory]: Interpolants [144770#(<= 84 ULTIMATE.start_main_~k~5), 144771#(<= 85 ULTIMATE.start_main_~k~5), 144768#(<= 82 ULTIMATE.start_main_~k~5), 144769#(<= 83 ULTIMATE.start_main_~k~5), 144774#(<= 88 ULTIMATE.start_main_~k~5), 144775#(<= 89 ULTIMATE.start_main_~k~5), 144772#(<= 86 ULTIMATE.start_main_~k~5), 144773#(<= 87 ULTIMATE.start_main_~k~5), 144776#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 144686#(<= 0 ULTIMATE.start_main_~k~5), 144687#(<= 1 ULTIMATE.start_main_~k~5), 144684#true, 144685#false, 144690#(<= 4 ULTIMATE.start_main_~k~5), 144691#(<= 5 ULTIMATE.start_main_~k~5), 144688#(<= 2 ULTIMATE.start_main_~k~5), 144689#(<= 3 ULTIMATE.start_main_~k~5), 144694#(<= 8 ULTIMATE.start_main_~k~5), 144695#(<= 9 ULTIMATE.start_main_~k~5), 144692#(<= 6 ULTIMATE.start_main_~k~5), 144693#(<= 7 ULTIMATE.start_main_~k~5), 144698#(<= 12 ULTIMATE.start_main_~k~5), 144699#(<= 13 ULTIMATE.start_main_~k~5), 144696#(<= 10 ULTIMATE.start_main_~k~5), 144697#(<= 11 ULTIMATE.start_main_~k~5), 144702#(<= 16 ULTIMATE.start_main_~k~5), 144703#(<= 17 ULTIMATE.start_main_~k~5), 144700#(<= 14 ULTIMATE.start_main_~k~5), 144701#(<= 15 ULTIMATE.start_main_~k~5), 144706#(<= 20 ULTIMATE.start_main_~k~5), 144707#(<= 21 ULTIMATE.start_main_~k~5), 144704#(<= 18 ULTIMATE.start_main_~k~5), 144705#(<= 19 ULTIMATE.start_main_~k~5), 144710#(<= 24 ULTIMATE.start_main_~k~5), 144711#(<= 25 ULTIMATE.start_main_~k~5), 144708#(<= 22 ULTIMATE.start_main_~k~5), 144709#(<= 23 ULTIMATE.start_main_~k~5), 144714#(<= 28 ULTIMATE.start_main_~k~5), 144715#(<= 29 ULTIMATE.start_main_~k~5), 144712#(<= 26 ULTIMATE.start_main_~k~5), 144713#(<= 27 ULTIMATE.start_main_~k~5), 144718#(<= 32 ULTIMATE.start_main_~k~5), 144719#(<= 33 ULTIMATE.start_main_~k~5), 144716#(<= 30 ULTIMATE.start_main_~k~5), 144717#(<= 31 ULTIMATE.start_main_~k~5), 144722#(<= 36 ULTIMATE.start_main_~k~5), 144723#(<= 37 ULTIMATE.start_main_~k~5), 144720#(<= 34 ULTIMATE.start_main_~k~5), 144721#(<= 35 ULTIMATE.start_main_~k~5), 144726#(<= 40 ULTIMATE.start_main_~k~5), 144727#(<= 41 ULTIMATE.start_main_~k~5), 144724#(<= 38 ULTIMATE.start_main_~k~5), 144725#(<= 39 ULTIMATE.start_main_~k~5), 144730#(<= 44 ULTIMATE.start_main_~k~5), 144731#(<= 45 ULTIMATE.start_main_~k~5), 144728#(<= 42 ULTIMATE.start_main_~k~5), 144729#(<= 43 ULTIMATE.start_main_~k~5), 144734#(<= 48 ULTIMATE.start_main_~k~5), 144735#(<= 49 ULTIMATE.start_main_~k~5), 144732#(<= 46 ULTIMATE.start_main_~k~5), 144733#(<= 47 ULTIMATE.start_main_~k~5), 144738#(<= 52 ULTIMATE.start_main_~k~5), 144739#(<= 53 ULTIMATE.start_main_~k~5), 144736#(<= 50 ULTIMATE.start_main_~k~5), 144737#(<= 51 ULTIMATE.start_main_~k~5), 144742#(<= 56 ULTIMATE.start_main_~k~5), 144743#(<= 57 ULTIMATE.start_main_~k~5), 144740#(<= 54 ULTIMATE.start_main_~k~5), 144741#(<= 55 ULTIMATE.start_main_~k~5), 144746#(<= 60 ULTIMATE.start_main_~k~5), 144747#(<= 61 ULTIMATE.start_main_~k~5), 144744#(<= 58 ULTIMATE.start_main_~k~5), 144745#(<= 59 ULTIMATE.start_main_~k~5), 144750#(<= 64 ULTIMATE.start_main_~k~5), 144751#(<= 65 ULTIMATE.start_main_~k~5), 144748#(<= 62 ULTIMATE.start_main_~k~5), 144749#(<= 63 ULTIMATE.start_main_~k~5), 144754#(<= 68 ULTIMATE.start_main_~k~5), 144755#(<= 69 ULTIMATE.start_main_~k~5), 144752#(<= 66 ULTIMATE.start_main_~k~5), 144753#(<= 67 ULTIMATE.start_main_~k~5), 144758#(<= 72 ULTIMATE.start_main_~k~5), 144759#(<= 73 ULTIMATE.start_main_~k~5), 144756#(<= 70 ULTIMATE.start_main_~k~5), 144757#(<= 71 ULTIMATE.start_main_~k~5), 144762#(<= 76 ULTIMATE.start_main_~k~5), 144763#(<= 77 ULTIMATE.start_main_~k~5), 144760#(<= 74 ULTIMATE.start_main_~k~5), 144761#(<= 75 ULTIMATE.start_main_~k~5), 144766#(<= 80 ULTIMATE.start_main_~k~5), 144767#(<= 81 ULTIMATE.start_main_~k~5), 144764#(<= 78 ULTIMATE.start_main_~k~5), 144765#(<= 79 ULTIMATE.start_main_~k~5)] [2018-07-23 13:42:38,847 INFO L134 CoverageAnalysis]: Checked inductivity of 11837 backedges. 4005 proven. 7832 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:38,847 INFO L450 AbstractCegarLoop]: Interpolant automaton has 93 states [2018-07-23 13:42:38,847 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 93 interpolants. [2018-07-23 13:42:38,848 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4188, Invalid=4368, Unknown=0, NotChecked=0, Total=8556 [2018-07-23 13:42:38,848 INFO L87 Difference]: Start difference. First operand 271 states and 272 transitions. Second operand 93 states. [2018-07-23 13:42:39,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:42:39,195 INFO L93 Difference]: Finished difference Result 279 states and 280 transitions. [2018-07-23 13:42:39,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 182 states. [2018-07-23 13:42:39,195 INFO L78 Accepts]: Start accepts. Automaton has 93 states. Word has length 270 [2018-07-23 13:42:39,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:42:39,196 INFO L225 Difference]: With dead ends: 279 [2018-07-23 13:42:39,196 INFO L226 Difference]: Without dead ends: 277 [2018-07-23 13:42:39,198 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 181 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8010 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=12558, Invalid=20748, Unknown=0, NotChecked=0, Total=33306 [2018-07-23 13:42:39,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2018-07-23 13:42:39,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 273. [2018-07-23 13:42:39,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 273 states. [2018-07-23 13:42:39,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 274 transitions. [2018-07-23 13:42:39,251 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 274 transitions. Word has length 270 [2018-07-23 13:42:39,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:42:39,251 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 274 transitions. [2018-07-23 13:42:39,251 INFO L472 AbstractCegarLoop]: Interpolant automaton has 93 states. [2018-07-23 13:42:39,251 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 274 transitions. [2018-07-23 13:42:39,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2018-07-23 13:42:39,252 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:42:39,252 INFO L357 BasicCegarLoop]: trace histogram [90, 89, 89, 1, 1, 1, 1] [2018-07-23 13:42:39,253 INFO L414 AbstractCegarLoop]: === Iteration 179 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:42:39,253 INFO L82 PathProgramCache]: Analyzing trace with hash -404384502, now seen corresponding path program 177 times [2018-07-23 13:42:39,253 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:42:39,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:42:39,967 INFO L134 CoverageAnalysis]: Checked inductivity of 12015 backedges. 8010 proven. 4005 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:39,968 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:42:39,968 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [181] total 181 [2018-07-23 13:42:39,968 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:42:39,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:39,969 INFO L185 omatonBuilderFactory]: Interpolants [146178#(<= ULTIMATE.start_main_~j~5 64), 146179#(<= ULTIMATE.start_main_~j~5 63), 146176#(<= ULTIMATE.start_main_~j~5 66), 146177#(<= ULTIMATE.start_main_~j~5 65), 146182#(<= ULTIMATE.start_main_~j~5 60), 146183#(<= ULTIMATE.start_main_~j~5 59), 146180#(<= ULTIMATE.start_main_~j~5 62), 146181#(<= ULTIMATE.start_main_~j~5 61), 146186#(<= ULTIMATE.start_main_~j~5 56), 146187#(<= ULTIMATE.start_main_~j~5 55), 146184#(<= ULTIMATE.start_main_~j~5 58), 146185#(<= ULTIMATE.start_main_~j~5 57), 146190#(<= ULTIMATE.start_main_~j~5 52), 146191#(<= ULTIMATE.start_main_~j~5 51), 146188#(<= ULTIMATE.start_main_~j~5 54), 146189#(<= ULTIMATE.start_main_~j~5 53), 146194#(<= ULTIMATE.start_main_~j~5 48), 146195#(<= ULTIMATE.start_main_~j~5 47), 146192#(<= ULTIMATE.start_main_~j~5 50), 146193#(<= ULTIMATE.start_main_~j~5 49), 146198#(<= ULTIMATE.start_main_~j~5 44), 146199#(<= ULTIMATE.start_main_~j~5 43), 146196#(<= ULTIMATE.start_main_~j~5 46), 146197#(<= ULTIMATE.start_main_~j~5 45), 146202#(<= ULTIMATE.start_main_~j~5 40), 146203#(<= ULTIMATE.start_main_~j~5 39), 146200#(<= ULTIMATE.start_main_~j~5 42), 146201#(<= ULTIMATE.start_main_~j~5 41), 146206#(<= ULTIMATE.start_main_~j~5 36), 146207#(<= ULTIMATE.start_main_~j~5 35), 146204#(<= ULTIMATE.start_main_~j~5 38), 146205#(<= ULTIMATE.start_main_~j~5 37), 146210#(<= ULTIMATE.start_main_~j~5 32), 146211#(<= ULTIMATE.start_main_~j~5 31), 146208#(<= ULTIMATE.start_main_~j~5 34), 146209#(<= ULTIMATE.start_main_~j~5 33), 146214#(<= ULTIMATE.start_main_~j~5 28), 146215#(<= ULTIMATE.start_main_~j~5 27), 146212#(<= ULTIMATE.start_main_~j~5 30), 146213#(<= ULTIMATE.start_main_~j~5 29), 146218#(<= ULTIMATE.start_main_~j~5 24), 146219#(<= ULTIMATE.start_main_~j~5 23), 146216#(<= ULTIMATE.start_main_~j~5 26), 146217#(<= ULTIMATE.start_main_~j~5 25), 146222#(<= ULTIMATE.start_main_~j~5 20), 146223#(<= ULTIMATE.start_main_~j~5 19), 146220#(<= ULTIMATE.start_main_~j~5 22), 146221#(<= ULTIMATE.start_main_~j~5 21), 146226#(<= ULTIMATE.start_main_~j~5 16), 146227#(<= ULTIMATE.start_main_~j~5 15), 146224#(<= ULTIMATE.start_main_~j~5 18), 146225#(<= ULTIMATE.start_main_~j~5 17), 146230#(<= ULTIMATE.start_main_~j~5 12), 146231#(<= ULTIMATE.start_main_~j~5 11), 146228#(<= ULTIMATE.start_main_~j~5 14), 146229#(<= ULTIMATE.start_main_~j~5 13), 146234#(<= ULTIMATE.start_main_~j~5 8), 146235#(<= ULTIMATE.start_main_~j~5 7), 146232#(<= ULTIMATE.start_main_~j~5 10), 146233#(<= ULTIMATE.start_main_~j~5 9), 146238#(<= ULTIMATE.start_main_~j~5 4), 146239#(<= ULTIMATE.start_main_~j~5 3), 146236#(<= ULTIMATE.start_main_~j~5 6), 146237#(<= ULTIMATE.start_main_~j~5 5), 146242#(<= ULTIMATE.start_main_~j~5 0), 146240#(<= ULTIMATE.start_main_~j~5 2), 146241#(<= ULTIMATE.start_main_~j~5 1), 146062#false, 146063#(<= ULTIMATE.start_main_~i~5 0), 146061#true, 146066#(<= ULTIMATE.start_main_~i~5 3), 146067#(<= ULTIMATE.start_main_~i~5 4), 146064#(<= ULTIMATE.start_main_~i~5 1), 146065#(<= ULTIMATE.start_main_~i~5 2), 146070#(<= ULTIMATE.start_main_~i~5 7), 146071#(<= ULTIMATE.start_main_~i~5 8), 146068#(<= ULTIMATE.start_main_~i~5 5), 146069#(<= ULTIMATE.start_main_~i~5 6), 146074#(<= ULTIMATE.start_main_~i~5 11), 146075#(<= ULTIMATE.start_main_~i~5 12), 146072#(<= ULTIMATE.start_main_~i~5 9), 146073#(<= ULTIMATE.start_main_~i~5 10), 146078#(<= ULTIMATE.start_main_~i~5 15), 146079#(<= ULTIMATE.start_main_~i~5 16), 146076#(<= ULTIMATE.start_main_~i~5 13), 146077#(<= ULTIMATE.start_main_~i~5 14), 146082#(<= ULTIMATE.start_main_~i~5 19), 146083#(<= ULTIMATE.start_main_~i~5 20), 146080#(<= ULTIMATE.start_main_~i~5 17), 146081#(<= ULTIMATE.start_main_~i~5 18), 146086#(<= ULTIMATE.start_main_~i~5 23), 146087#(<= ULTIMATE.start_main_~i~5 24), 146084#(<= ULTIMATE.start_main_~i~5 21), 146085#(<= ULTIMATE.start_main_~i~5 22), 146090#(<= ULTIMATE.start_main_~i~5 27), 146091#(<= ULTIMATE.start_main_~i~5 28), 146088#(<= ULTIMATE.start_main_~i~5 25), 146089#(<= ULTIMATE.start_main_~i~5 26), 146094#(<= ULTIMATE.start_main_~i~5 31), 146095#(<= ULTIMATE.start_main_~i~5 32), 146092#(<= ULTIMATE.start_main_~i~5 29), 146093#(<= ULTIMATE.start_main_~i~5 30), 146098#(<= ULTIMATE.start_main_~i~5 35), 146099#(<= ULTIMATE.start_main_~i~5 36), 146096#(<= ULTIMATE.start_main_~i~5 33), 146097#(<= ULTIMATE.start_main_~i~5 34), 146102#(<= ULTIMATE.start_main_~i~5 39), 146103#(<= ULTIMATE.start_main_~i~5 40), 146100#(<= ULTIMATE.start_main_~i~5 37), 146101#(<= ULTIMATE.start_main_~i~5 38), 146106#(<= ULTIMATE.start_main_~i~5 43), 146107#(<= ULTIMATE.start_main_~i~5 44), 146104#(<= ULTIMATE.start_main_~i~5 41), 146105#(<= ULTIMATE.start_main_~i~5 42), 146110#(<= ULTIMATE.start_main_~i~5 47), 146111#(<= ULTIMATE.start_main_~i~5 48), 146108#(<= ULTIMATE.start_main_~i~5 45), 146109#(<= ULTIMATE.start_main_~i~5 46), 146114#(<= ULTIMATE.start_main_~i~5 51), 146115#(<= ULTIMATE.start_main_~i~5 52), 146112#(<= ULTIMATE.start_main_~i~5 49), 146113#(<= ULTIMATE.start_main_~i~5 50), 146118#(<= ULTIMATE.start_main_~i~5 55), 146119#(<= ULTIMATE.start_main_~i~5 56), 146116#(<= ULTIMATE.start_main_~i~5 53), 146117#(<= ULTIMATE.start_main_~i~5 54), 146122#(<= ULTIMATE.start_main_~i~5 59), 146123#(<= ULTIMATE.start_main_~i~5 60), 146120#(<= ULTIMATE.start_main_~i~5 57), 146121#(<= ULTIMATE.start_main_~i~5 58), 146126#(<= ULTIMATE.start_main_~i~5 63), 146127#(<= ULTIMATE.start_main_~i~5 64), 146124#(<= ULTIMATE.start_main_~i~5 61), 146125#(<= ULTIMATE.start_main_~i~5 62), 146130#(<= ULTIMATE.start_main_~i~5 67), 146131#(<= ULTIMATE.start_main_~i~5 68), 146128#(<= ULTIMATE.start_main_~i~5 65), 146129#(<= ULTIMATE.start_main_~i~5 66), 146134#(<= ULTIMATE.start_main_~i~5 71), 146135#(<= ULTIMATE.start_main_~i~5 72), 146132#(<= ULTIMATE.start_main_~i~5 69), 146133#(<= ULTIMATE.start_main_~i~5 70), 146138#(<= ULTIMATE.start_main_~i~5 75), 146139#(<= ULTIMATE.start_main_~i~5 76), 146136#(<= ULTIMATE.start_main_~i~5 73), 146137#(<= ULTIMATE.start_main_~i~5 74), 146142#(<= ULTIMATE.start_main_~i~5 79), 146143#(<= ULTIMATE.start_main_~i~5 80), 146140#(<= ULTIMATE.start_main_~i~5 77), 146141#(<= ULTIMATE.start_main_~i~5 78), 146146#(<= ULTIMATE.start_main_~i~5 83), 146147#(<= ULTIMATE.start_main_~i~5 84), 146144#(<= ULTIMATE.start_main_~i~5 81), 146145#(<= ULTIMATE.start_main_~i~5 82), 146150#(<= ULTIMATE.start_main_~i~5 87), 146151#(<= ULTIMATE.start_main_~i~5 88), 146148#(<= ULTIMATE.start_main_~i~5 85), 146149#(<= ULTIMATE.start_main_~i~5 86), 146154#(<= ULTIMATE.start_main_~j~5 88), 146155#(<= ULTIMATE.start_main_~j~5 87), 146152#(<= ULTIMATE.start_main_~i~5 89), 146153#(<= ULTIMATE.start_main_~j~5 89), 146158#(<= ULTIMATE.start_main_~j~5 84), 146159#(<= ULTIMATE.start_main_~j~5 83), 146156#(<= ULTIMATE.start_main_~j~5 86), 146157#(<= ULTIMATE.start_main_~j~5 85), 146162#(<= ULTIMATE.start_main_~j~5 80), 146163#(<= ULTIMATE.start_main_~j~5 79), 146160#(<= ULTIMATE.start_main_~j~5 82), 146161#(<= ULTIMATE.start_main_~j~5 81), 146166#(<= ULTIMATE.start_main_~j~5 76), 146167#(<= ULTIMATE.start_main_~j~5 75), 146164#(<= ULTIMATE.start_main_~j~5 78), 146165#(<= ULTIMATE.start_main_~j~5 77), 146170#(<= ULTIMATE.start_main_~j~5 72), 146171#(<= ULTIMATE.start_main_~j~5 71), 146168#(<= ULTIMATE.start_main_~j~5 74), 146169#(<= ULTIMATE.start_main_~j~5 73), 146174#(<= ULTIMATE.start_main_~j~5 68), 146175#(<= ULTIMATE.start_main_~j~5 67), 146172#(<= ULTIMATE.start_main_~j~5 70), 146173#(<= ULTIMATE.start_main_~j~5 69)] [2018-07-23 13:42:39,969 INFO L134 CoverageAnalysis]: Checked inductivity of 12015 backedges. 8010 proven. 4005 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:39,969 INFO L450 AbstractCegarLoop]: Interpolant automaton has 182 states [2018-07-23 13:42:39,970 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 182 interpolants. [2018-07-23 13:42:39,971 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8371, Invalid=24571, Unknown=0, NotChecked=0, Total=32942 [2018-07-23 13:42:39,971 INFO L87 Difference]: Start difference. First operand 273 states and 274 transitions. Second operand 182 states. [2018-07-23 13:42:41,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:42:41,804 INFO L93 Difference]: Finished difference Result 457 states and 459 transitions. [2018-07-23 13:42:41,804 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 182 states. [2018-07-23 13:42:41,804 INFO L78 Accepts]: Start accepts. Automaton has 182 states. Word has length 272 [2018-07-23 13:42:41,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:42:41,804 INFO L225 Difference]: With dead ends: 457 [2018-07-23 13:42:41,804 INFO L226 Difference]: Without dead ends: 274 [2018-07-23 13:42:41,808 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 270 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11926 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=16741, Invalid=56971, Unknown=0, NotChecked=0, Total=73712 [2018-07-23 13:42:41,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2018-07-23 13:42:41,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2018-07-23 13:42:41,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2018-07-23 13:42:41,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 275 transitions. [2018-07-23 13:42:41,838 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 275 transitions. Word has length 272 [2018-07-23 13:42:41,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:42:41,839 INFO L471 AbstractCegarLoop]: Abstraction has 274 states and 275 transitions. [2018-07-23 13:42:41,839 INFO L472 AbstractCegarLoop]: Interpolant automaton has 182 states. [2018-07-23 13:42:41,839 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 275 transitions. [2018-07-23 13:42:41,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2018-07-23 13:42:41,839 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:42:41,840 INFO L357 BasicCegarLoop]: trace histogram [90, 90, 89, 1, 1, 1, 1] [2018-07-23 13:42:41,840 INFO L414 AbstractCegarLoop]: === Iteration 180 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:42:41,840 INFO L82 PathProgramCache]: Analyzing trace with hash 1241894531, now seen corresponding path program 178 times [2018-07-23 13:42:41,840 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:42:41,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:42:42,264 INFO L134 CoverageAnalysis]: Checked inductivity of 12105 backedges. 4095 proven. 8010 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:42,264 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:42:42,264 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [93] total 93 [2018-07-23 13:42:42,264 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:42:42,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:42,265 INFO L185 omatonBuilderFactory]: Interpolants [147970#(<= 83 ULTIMATE.start_main_~k~5), 147971#(<= 84 ULTIMATE.start_main_~k~5), 147968#(<= 81 ULTIMATE.start_main_~k~5), 147969#(<= 82 ULTIMATE.start_main_~k~5), 147974#(<= 87 ULTIMATE.start_main_~k~5), 147975#(<= 88 ULTIMATE.start_main_~k~5), 147972#(<= 85 ULTIMATE.start_main_~k~5), 147973#(<= 86 ULTIMATE.start_main_~k~5), 147978#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 147976#(<= 89 ULTIMATE.start_main_~k~5), 147977#(<= 90 ULTIMATE.start_main_~k~5), 147886#false, 147887#(<= 0 ULTIMATE.start_main_~k~5), 147885#true, 147890#(<= 3 ULTIMATE.start_main_~k~5), 147891#(<= 4 ULTIMATE.start_main_~k~5), 147888#(<= 1 ULTIMATE.start_main_~k~5), 147889#(<= 2 ULTIMATE.start_main_~k~5), 147894#(<= 7 ULTIMATE.start_main_~k~5), 147895#(<= 8 ULTIMATE.start_main_~k~5), 147892#(<= 5 ULTIMATE.start_main_~k~5), 147893#(<= 6 ULTIMATE.start_main_~k~5), 147898#(<= 11 ULTIMATE.start_main_~k~5), 147899#(<= 12 ULTIMATE.start_main_~k~5), 147896#(<= 9 ULTIMATE.start_main_~k~5), 147897#(<= 10 ULTIMATE.start_main_~k~5), 147902#(<= 15 ULTIMATE.start_main_~k~5), 147903#(<= 16 ULTIMATE.start_main_~k~5), 147900#(<= 13 ULTIMATE.start_main_~k~5), 147901#(<= 14 ULTIMATE.start_main_~k~5), 147906#(<= 19 ULTIMATE.start_main_~k~5), 147907#(<= 20 ULTIMATE.start_main_~k~5), 147904#(<= 17 ULTIMATE.start_main_~k~5), 147905#(<= 18 ULTIMATE.start_main_~k~5), 147910#(<= 23 ULTIMATE.start_main_~k~5), 147911#(<= 24 ULTIMATE.start_main_~k~5), 147908#(<= 21 ULTIMATE.start_main_~k~5), 147909#(<= 22 ULTIMATE.start_main_~k~5), 147914#(<= 27 ULTIMATE.start_main_~k~5), 147915#(<= 28 ULTIMATE.start_main_~k~5), 147912#(<= 25 ULTIMATE.start_main_~k~5), 147913#(<= 26 ULTIMATE.start_main_~k~5), 147918#(<= 31 ULTIMATE.start_main_~k~5), 147919#(<= 32 ULTIMATE.start_main_~k~5), 147916#(<= 29 ULTIMATE.start_main_~k~5), 147917#(<= 30 ULTIMATE.start_main_~k~5), 147922#(<= 35 ULTIMATE.start_main_~k~5), 147923#(<= 36 ULTIMATE.start_main_~k~5), 147920#(<= 33 ULTIMATE.start_main_~k~5), 147921#(<= 34 ULTIMATE.start_main_~k~5), 147926#(<= 39 ULTIMATE.start_main_~k~5), 147927#(<= 40 ULTIMATE.start_main_~k~5), 147924#(<= 37 ULTIMATE.start_main_~k~5), 147925#(<= 38 ULTIMATE.start_main_~k~5), 147930#(<= 43 ULTIMATE.start_main_~k~5), 147931#(<= 44 ULTIMATE.start_main_~k~5), 147928#(<= 41 ULTIMATE.start_main_~k~5), 147929#(<= 42 ULTIMATE.start_main_~k~5), 147934#(<= 47 ULTIMATE.start_main_~k~5), 147935#(<= 48 ULTIMATE.start_main_~k~5), 147932#(<= 45 ULTIMATE.start_main_~k~5), 147933#(<= 46 ULTIMATE.start_main_~k~5), 147938#(<= 51 ULTIMATE.start_main_~k~5), 147939#(<= 52 ULTIMATE.start_main_~k~5), 147936#(<= 49 ULTIMATE.start_main_~k~5), 147937#(<= 50 ULTIMATE.start_main_~k~5), 147942#(<= 55 ULTIMATE.start_main_~k~5), 147943#(<= 56 ULTIMATE.start_main_~k~5), 147940#(<= 53 ULTIMATE.start_main_~k~5), 147941#(<= 54 ULTIMATE.start_main_~k~5), 147946#(<= 59 ULTIMATE.start_main_~k~5), 147947#(<= 60 ULTIMATE.start_main_~k~5), 147944#(<= 57 ULTIMATE.start_main_~k~5), 147945#(<= 58 ULTIMATE.start_main_~k~5), 147950#(<= 63 ULTIMATE.start_main_~k~5), 147951#(<= 64 ULTIMATE.start_main_~k~5), 147948#(<= 61 ULTIMATE.start_main_~k~5), 147949#(<= 62 ULTIMATE.start_main_~k~5), 147954#(<= 67 ULTIMATE.start_main_~k~5), 147955#(<= 68 ULTIMATE.start_main_~k~5), 147952#(<= 65 ULTIMATE.start_main_~k~5), 147953#(<= 66 ULTIMATE.start_main_~k~5), 147958#(<= 71 ULTIMATE.start_main_~k~5), 147959#(<= 72 ULTIMATE.start_main_~k~5), 147956#(<= 69 ULTIMATE.start_main_~k~5), 147957#(<= 70 ULTIMATE.start_main_~k~5), 147962#(<= 75 ULTIMATE.start_main_~k~5), 147963#(<= 76 ULTIMATE.start_main_~k~5), 147960#(<= 73 ULTIMATE.start_main_~k~5), 147961#(<= 74 ULTIMATE.start_main_~k~5), 147966#(<= 79 ULTIMATE.start_main_~k~5), 147967#(<= 80 ULTIMATE.start_main_~k~5), 147964#(<= 77 ULTIMATE.start_main_~k~5), 147965#(<= 78 ULTIMATE.start_main_~k~5)] [2018-07-23 13:42:42,266 INFO L134 CoverageAnalysis]: Checked inductivity of 12105 backedges. 4095 proven. 8010 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:42,266 INFO L450 AbstractCegarLoop]: Interpolant automaton has 94 states [2018-07-23 13:42:42,266 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2018-07-23 13:42:42,266 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4280, Invalid=4462, Unknown=0, NotChecked=0, Total=8742 [2018-07-23 13:42:42,267 INFO L87 Difference]: Start difference. First operand 274 states and 275 transitions. Second operand 94 states. [2018-07-23 13:42:42,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:42:42,637 INFO L93 Difference]: Finished difference Result 282 states and 283 transitions. [2018-07-23 13:42:42,637 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 184 states. [2018-07-23 13:42:42,637 INFO L78 Accepts]: Start accepts. Automaton has 94 states. Word has length 273 [2018-07-23 13:42:42,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:42:42,638 INFO L225 Difference]: With dead ends: 282 [2018-07-23 13:42:42,638 INFO L226 Difference]: Without dead ends: 280 [2018-07-23 13:42:42,639 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 183 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8190 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=12834, Invalid=21206, Unknown=0, NotChecked=0, Total=34040 [2018-07-23 13:42:42,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2018-07-23 13:42:42,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 276. [2018-07-23 13:42:42,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2018-07-23 13:42:42,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 277 transitions. [2018-07-23 13:42:42,669 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 277 transitions. Word has length 273 [2018-07-23 13:42:42,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:42:42,670 INFO L471 AbstractCegarLoop]: Abstraction has 276 states and 277 transitions. [2018-07-23 13:42:42,670 INFO L472 AbstractCegarLoop]: Interpolant automaton has 94 states. [2018-07-23 13:42:42,670 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 277 transitions. [2018-07-23 13:42:42,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2018-07-23 13:42:42,671 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:42:42,671 INFO L357 BasicCegarLoop]: trace histogram [91, 90, 90, 1, 1, 1, 1] [2018-07-23 13:42:42,671 INFO L414 AbstractCegarLoop]: === Iteration 181 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:42:42,671 INFO L82 PathProgramCache]: Analyzing trace with hash -540197973, now seen corresponding path program 179 times [2018-07-23 13:42:42,671 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:42:42,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:42:43,351 INFO L134 CoverageAnalysis]: Checked inductivity of 12285 backedges. 8190 proven. 4095 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:43,351 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:42:43,351 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [183] total 183 [2018-07-23 13:42:43,351 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:42:43,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:43,352 INFO L185 omatonBuilderFactory]: Interpolants [149278#false, 149279#(<= ULTIMATE.start_main_~i~5 0), 149277#true, 149282#(<= ULTIMATE.start_main_~i~5 3), 149283#(<= ULTIMATE.start_main_~i~5 4), 149280#(<= ULTIMATE.start_main_~i~5 1), 149281#(<= ULTIMATE.start_main_~i~5 2), 149286#(<= ULTIMATE.start_main_~i~5 7), 149287#(<= ULTIMATE.start_main_~i~5 8), 149284#(<= ULTIMATE.start_main_~i~5 5), 149285#(<= ULTIMATE.start_main_~i~5 6), 149290#(<= ULTIMATE.start_main_~i~5 11), 149291#(<= ULTIMATE.start_main_~i~5 12), 149288#(<= ULTIMATE.start_main_~i~5 9), 149289#(<= ULTIMATE.start_main_~i~5 10), 149294#(<= ULTIMATE.start_main_~i~5 15), 149295#(<= ULTIMATE.start_main_~i~5 16), 149292#(<= ULTIMATE.start_main_~i~5 13), 149293#(<= ULTIMATE.start_main_~i~5 14), 149298#(<= ULTIMATE.start_main_~i~5 19), 149299#(<= ULTIMATE.start_main_~i~5 20), 149296#(<= ULTIMATE.start_main_~i~5 17), 149297#(<= ULTIMATE.start_main_~i~5 18), 149302#(<= ULTIMATE.start_main_~i~5 23), 149303#(<= ULTIMATE.start_main_~i~5 24), 149300#(<= ULTIMATE.start_main_~i~5 21), 149301#(<= ULTIMATE.start_main_~i~5 22), 149306#(<= ULTIMATE.start_main_~i~5 27), 149307#(<= ULTIMATE.start_main_~i~5 28), 149304#(<= ULTIMATE.start_main_~i~5 25), 149305#(<= ULTIMATE.start_main_~i~5 26), 149310#(<= ULTIMATE.start_main_~i~5 31), 149311#(<= ULTIMATE.start_main_~i~5 32), 149308#(<= ULTIMATE.start_main_~i~5 29), 149309#(<= ULTIMATE.start_main_~i~5 30), 149314#(<= ULTIMATE.start_main_~i~5 35), 149315#(<= ULTIMATE.start_main_~i~5 36), 149312#(<= ULTIMATE.start_main_~i~5 33), 149313#(<= ULTIMATE.start_main_~i~5 34), 149318#(<= ULTIMATE.start_main_~i~5 39), 149319#(<= ULTIMATE.start_main_~i~5 40), 149316#(<= ULTIMATE.start_main_~i~5 37), 149317#(<= ULTIMATE.start_main_~i~5 38), 149322#(<= ULTIMATE.start_main_~i~5 43), 149323#(<= ULTIMATE.start_main_~i~5 44), 149320#(<= ULTIMATE.start_main_~i~5 41), 149321#(<= ULTIMATE.start_main_~i~5 42), 149326#(<= ULTIMATE.start_main_~i~5 47), 149327#(<= ULTIMATE.start_main_~i~5 48), 149324#(<= ULTIMATE.start_main_~i~5 45), 149325#(<= ULTIMATE.start_main_~i~5 46), 149330#(<= ULTIMATE.start_main_~i~5 51), 149331#(<= ULTIMATE.start_main_~i~5 52), 149328#(<= ULTIMATE.start_main_~i~5 49), 149329#(<= ULTIMATE.start_main_~i~5 50), 149334#(<= ULTIMATE.start_main_~i~5 55), 149335#(<= ULTIMATE.start_main_~i~5 56), 149332#(<= ULTIMATE.start_main_~i~5 53), 149333#(<= ULTIMATE.start_main_~i~5 54), 149338#(<= ULTIMATE.start_main_~i~5 59), 149339#(<= ULTIMATE.start_main_~i~5 60), 149336#(<= ULTIMATE.start_main_~i~5 57), 149337#(<= ULTIMATE.start_main_~i~5 58), 149342#(<= ULTIMATE.start_main_~i~5 63), 149343#(<= ULTIMATE.start_main_~i~5 64), 149340#(<= ULTIMATE.start_main_~i~5 61), 149341#(<= ULTIMATE.start_main_~i~5 62), 149346#(<= ULTIMATE.start_main_~i~5 67), 149347#(<= ULTIMATE.start_main_~i~5 68), 149344#(<= ULTIMATE.start_main_~i~5 65), 149345#(<= ULTIMATE.start_main_~i~5 66), 149350#(<= ULTIMATE.start_main_~i~5 71), 149351#(<= ULTIMATE.start_main_~i~5 72), 149348#(<= ULTIMATE.start_main_~i~5 69), 149349#(<= ULTIMATE.start_main_~i~5 70), 149354#(<= ULTIMATE.start_main_~i~5 75), 149355#(<= ULTIMATE.start_main_~i~5 76), 149352#(<= ULTIMATE.start_main_~i~5 73), 149353#(<= ULTIMATE.start_main_~i~5 74), 149358#(<= ULTIMATE.start_main_~i~5 79), 149359#(<= ULTIMATE.start_main_~i~5 80), 149356#(<= ULTIMATE.start_main_~i~5 77), 149357#(<= ULTIMATE.start_main_~i~5 78), 149362#(<= ULTIMATE.start_main_~i~5 83), 149363#(<= ULTIMATE.start_main_~i~5 84), 149360#(<= ULTIMATE.start_main_~i~5 81), 149361#(<= ULTIMATE.start_main_~i~5 82), 149366#(<= ULTIMATE.start_main_~i~5 87), 149367#(<= ULTIMATE.start_main_~i~5 88), 149364#(<= ULTIMATE.start_main_~i~5 85), 149365#(<= ULTIMATE.start_main_~i~5 86), 149370#(<= ULTIMATE.start_main_~j~5 90), 149371#(<= ULTIMATE.start_main_~j~5 89), 149368#(<= ULTIMATE.start_main_~i~5 89), 149369#(<= ULTIMATE.start_main_~i~5 90), 149374#(<= ULTIMATE.start_main_~j~5 86), 149375#(<= ULTIMATE.start_main_~j~5 85), 149372#(<= ULTIMATE.start_main_~j~5 88), 149373#(<= ULTIMATE.start_main_~j~5 87), 149378#(<= ULTIMATE.start_main_~j~5 82), 149379#(<= ULTIMATE.start_main_~j~5 81), 149376#(<= ULTIMATE.start_main_~j~5 84), 149377#(<= ULTIMATE.start_main_~j~5 83), 149382#(<= ULTIMATE.start_main_~j~5 78), 149383#(<= ULTIMATE.start_main_~j~5 77), 149380#(<= ULTIMATE.start_main_~j~5 80), 149381#(<= ULTIMATE.start_main_~j~5 79), 149386#(<= ULTIMATE.start_main_~j~5 74), 149387#(<= ULTIMATE.start_main_~j~5 73), 149384#(<= ULTIMATE.start_main_~j~5 76), 149385#(<= ULTIMATE.start_main_~j~5 75), 149390#(<= ULTIMATE.start_main_~j~5 70), 149391#(<= ULTIMATE.start_main_~j~5 69), 149388#(<= ULTIMATE.start_main_~j~5 72), 149389#(<= ULTIMATE.start_main_~j~5 71), 149394#(<= ULTIMATE.start_main_~j~5 66), 149395#(<= ULTIMATE.start_main_~j~5 65), 149392#(<= ULTIMATE.start_main_~j~5 68), 149393#(<= ULTIMATE.start_main_~j~5 67), 149398#(<= ULTIMATE.start_main_~j~5 62), 149399#(<= ULTIMATE.start_main_~j~5 61), 149396#(<= ULTIMATE.start_main_~j~5 64), 149397#(<= ULTIMATE.start_main_~j~5 63), 149402#(<= ULTIMATE.start_main_~j~5 58), 149403#(<= ULTIMATE.start_main_~j~5 57), 149400#(<= ULTIMATE.start_main_~j~5 60), 149401#(<= ULTIMATE.start_main_~j~5 59), 149406#(<= ULTIMATE.start_main_~j~5 54), 149407#(<= ULTIMATE.start_main_~j~5 53), 149404#(<= ULTIMATE.start_main_~j~5 56), 149405#(<= ULTIMATE.start_main_~j~5 55), 149410#(<= ULTIMATE.start_main_~j~5 50), 149411#(<= ULTIMATE.start_main_~j~5 49), 149408#(<= ULTIMATE.start_main_~j~5 52), 149409#(<= ULTIMATE.start_main_~j~5 51), 149414#(<= ULTIMATE.start_main_~j~5 46), 149415#(<= ULTIMATE.start_main_~j~5 45), 149412#(<= ULTIMATE.start_main_~j~5 48), 149413#(<= ULTIMATE.start_main_~j~5 47), 149418#(<= ULTIMATE.start_main_~j~5 42), 149419#(<= ULTIMATE.start_main_~j~5 41), 149416#(<= ULTIMATE.start_main_~j~5 44), 149417#(<= ULTIMATE.start_main_~j~5 43), 149422#(<= ULTIMATE.start_main_~j~5 38), 149423#(<= ULTIMATE.start_main_~j~5 37), 149420#(<= ULTIMATE.start_main_~j~5 40), 149421#(<= ULTIMATE.start_main_~j~5 39), 149426#(<= ULTIMATE.start_main_~j~5 34), 149427#(<= ULTIMATE.start_main_~j~5 33), 149424#(<= ULTIMATE.start_main_~j~5 36), 149425#(<= ULTIMATE.start_main_~j~5 35), 149430#(<= ULTIMATE.start_main_~j~5 30), 149431#(<= ULTIMATE.start_main_~j~5 29), 149428#(<= ULTIMATE.start_main_~j~5 32), 149429#(<= ULTIMATE.start_main_~j~5 31), 149434#(<= ULTIMATE.start_main_~j~5 26), 149435#(<= ULTIMATE.start_main_~j~5 25), 149432#(<= ULTIMATE.start_main_~j~5 28), 149433#(<= ULTIMATE.start_main_~j~5 27), 149438#(<= ULTIMATE.start_main_~j~5 22), 149439#(<= ULTIMATE.start_main_~j~5 21), 149436#(<= ULTIMATE.start_main_~j~5 24), 149437#(<= ULTIMATE.start_main_~j~5 23), 149442#(<= ULTIMATE.start_main_~j~5 18), 149443#(<= ULTIMATE.start_main_~j~5 17), 149440#(<= ULTIMATE.start_main_~j~5 20), 149441#(<= ULTIMATE.start_main_~j~5 19), 149446#(<= ULTIMATE.start_main_~j~5 14), 149447#(<= ULTIMATE.start_main_~j~5 13), 149444#(<= ULTIMATE.start_main_~j~5 16), 149445#(<= ULTIMATE.start_main_~j~5 15), 149450#(<= ULTIMATE.start_main_~j~5 10), 149451#(<= ULTIMATE.start_main_~j~5 9), 149448#(<= ULTIMATE.start_main_~j~5 12), 149449#(<= ULTIMATE.start_main_~j~5 11), 149454#(<= ULTIMATE.start_main_~j~5 6), 149455#(<= ULTIMATE.start_main_~j~5 5), 149452#(<= ULTIMATE.start_main_~j~5 8), 149453#(<= ULTIMATE.start_main_~j~5 7), 149458#(<= ULTIMATE.start_main_~j~5 2), 149459#(<= ULTIMATE.start_main_~j~5 1), 149456#(<= ULTIMATE.start_main_~j~5 4), 149457#(<= ULTIMATE.start_main_~j~5 3), 149460#(<= ULTIMATE.start_main_~j~5 0)] [2018-07-23 13:42:43,353 INFO L134 CoverageAnalysis]: Checked inductivity of 12285 backedges. 8190 proven. 4095 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:43,353 INFO L450 AbstractCegarLoop]: Interpolant automaton has 184 states [2018-07-23 13:42:43,354 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 184 interpolants. [2018-07-23 13:42:43,355 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8555, Invalid=25117, Unknown=0, NotChecked=0, Total=33672 [2018-07-23 13:42:43,355 INFO L87 Difference]: Start difference. First operand 276 states and 277 transitions. Second operand 184 states. [2018-07-23 13:42:45,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:42:45,311 INFO L93 Difference]: Finished difference Result 462 states and 464 transitions. [2018-07-23 13:42:45,311 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 184 states. [2018-07-23 13:42:45,311 INFO L78 Accepts]: Start accepts. Automaton has 184 states. Word has length 275 [2018-07-23 13:42:45,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:42:45,312 INFO L225 Difference]: With dead ends: 462 [2018-07-23 13:42:45,312 INFO L226 Difference]: Without dead ends: 277 [2018-07-23 13:42:45,316 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 273 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12195 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=17109, Invalid=58241, Unknown=0, NotChecked=0, Total=75350 [2018-07-23 13:42:45,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2018-07-23 13:42:45,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 277. [2018-07-23 13:42:45,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2018-07-23 13:42:45,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 278 transitions. [2018-07-23 13:42:45,347 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 278 transitions. Word has length 275 [2018-07-23 13:42:45,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:42:45,347 INFO L471 AbstractCegarLoop]: Abstraction has 277 states and 278 transitions. [2018-07-23 13:42:45,347 INFO L472 AbstractCegarLoop]: Interpolant automaton has 184 states. [2018-07-23 13:42:45,347 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 278 transitions. [2018-07-23 13:42:45,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2018-07-23 13:42:45,348 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:42:45,348 INFO L357 BasicCegarLoop]: trace histogram [91, 91, 90, 1, 1, 1, 1] [2018-07-23 13:42:45,348 INFO L414 AbstractCegarLoop]: === Iteration 182 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:42:45,348 INFO L82 PathProgramCache]: Analyzing trace with hash -473078894, now seen corresponding path program 180 times [2018-07-23 13:42:45,349 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:42:45,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:42:45,783 INFO L134 CoverageAnalysis]: Checked inductivity of 12376 backedges. 4186 proven. 8190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:45,784 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:42:45,784 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [94] total 94 [2018-07-23 13:42:45,784 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:42:45,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:45,784 INFO L185 omatonBuilderFactory]: Interpolants [151170#(<= 47 ULTIMATE.start_main_~k~5), 151171#(<= 48 ULTIMATE.start_main_~k~5), 151168#(<= 45 ULTIMATE.start_main_~k~5), 151169#(<= 46 ULTIMATE.start_main_~k~5), 151174#(<= 51 ULTIMATE.start_main_~k~5), 151175#(<= 52 ULTIMATE.start_main_~k~5), 151172#(<= 49 ULTIMATE.start_main_~k~5), 151173#(<= 50 ULTIMATE.start_main_~k~5), 151178#(<= 55 ULTIMATE.start_main_~k~5), 151179#(<= 56 ULTIMATE.start_main_~k~5), 151176#(<= 53 ULTIMATE.start_main_~k~5), 151177#(<= 54 ULTIMATE.start_main_~k~5), 151182#(<= 59 ULTIMATE.start_main_~k~5), 151183#(<= 60 ULTIMATE.start_main_~k~5), 151180#(<= 57 ULTIMATE.start_main_~k~5), 151181#(<= 58 ULTIMATE.start_main_~k~5), 151186#(<= 63 ULTIMATE.start_main_~k~5), 151187#(<= 64 ULTIMATE.start_main_~k~5), 151184#(<= 61 ULTIMATE.start_main_~k~5), 151185#(<= 62 ULTIMATE.start_main_~k~5), 151190#(<= 67 ULTIMATE.start_main_~k~5), 151191#(<= 68 ULTIMATE.start_main_~k~5), 151188#(<= 65 ULTIMATE.start_main_~k~5), 151189#(<= 66 ULTIMATE.start_main_~k~5), 151194#(<= 71 ULTIMATE.start_main_~k~5), 151195#(<= 72 ULTIMATE.start_main_~k~5), 151192#(<= 69 ULTIMATE.start_main_~k~5), 151193#(<= 70 ULTIMATE.start_main_~k~5), 151198#(<= 75 ULTIMATE.start_main_~k~5), 151199#(<= 76 ULTIMATE.start_main_~k~5), 151196#(<= 73 ULTIMATE.start_main_~k~5), 151197#(<= 74 ULTIMATE.start_main_~k~5), 151202#(<= 79 ULTIMATE.start_main_~k~5), 151203#(<= 80 ULTIMATE.start_main_~k~5), 151200#(<= 77 ULTIMATE.start_main_~k~5), 151201#(<= 78 ULTIMATE.start_main_~k~5), 151206#(<= 83 ULTIMATE.start_main_~k~5), 151207#(<= 84 ULTIMATE.start_main_~k~5), 151204#(<= 81 ULTIMATE.start_main_~k~5), 151205#(<= 82 ULTIMATE.start_main_~k~5), 151210#(<= 87 ULTIMATE.start_main_~k~5), 151211#(<= 88 ULTIMATE.start_main_~k~5), 151208#(<= 85 ULTIMATE.start_main_~k~5), 151209#(<= 86 ULTIMATE.start_main_~k~5), 151214#(<= 91 ULTIMATE.start_main_~k~5), 151215#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 151212#(<= 89 ULTIMATE.start_main_~k~5), 151213#(<= 90 ULTIMATE.start_main_~k~5), 151122#false, 151123#(<= 0 ULTIMATE.start_main_~k~5), 151121#true, 151126#(<= 3 ULTIMATE.start_main_~k~5), 151127#(<= 4 ULTIMATE.start_main_~k~5), 151124#(<= 1 ULTIMATE.start_main_~k~5), 151125#(<= 2 ULTIMATE.start_main_~k~5), 151130#(<= 7 ULTIMATE.start_main_~k~5), 151131#(<= 8 ULTIMATE.start_main_~k~5), 151128#(<= 5 ULTIMATE.start_main_~k~5), 151129#(<= 6 ULTIMATE.start_main_~k~5), 151134#(<= 11 ULTIMATE.start_main_~k~5), 151135#(<= 12 ULTIMATE.start_main_~k~5), 151132#(<= 9 ULTIMATE.start_main_~k~5), 151133#(<= 10 ULTIMATE.start_main_~k~5), 151138#(<= 15 ULTIMATE.start_main_~k~5), 151139#(<= 16 ULTIMATE.start_main_~k~5), 151136#(<= 13 ULTIMATE.start_main_~k~5), 151137#(<= 14 ULTIMATE.start_main_~k~5), 151142#(<= 19 ULTIMATE.start_main_~k~5), 151143#(<= 20 ULTIMATE.start_main_~k~5), 151140#(<= 17 ULTIMATE.start_main_~k~5), 151141#(<= 18 ULTIMATE.start_main_~k~5), 151146#(<= 23 ULTIMATE.start_main_~k~5), 151147#(<= 24 ULTIMATE.start_main_~k~5), 151144#(<= 21 ULTIMATE.start_main_~k~5), 151145#(<= 22 ULTIMATE.start_main_~k~5), 151150#(<= 27 ULTIMATE.start_main_~k~5), 151151#(<= 28 ULTIMATE.start_main_~k~5), 151148#(<= 25 ULTIMATE.start_main_~k~5), 151149#(<= 26 ULTIMATE.start_main_~k~5), 151154#(<= 31 ULTIMATE.start_main_~k~5), 151155#(<= 32 ULTIMATE.start_main_~k~5), 151152#(<= 29 ULTIMATE.start_main_~k~5), 151153#(<= 30 ULTIMATE.start_main_~k~5), 151158#(<= 35 ULTIMATE.start_main_~k~5), 151159#(<= 36 ULTIMATE.start_main_~k~5), 151156#(<= 33 ULTIMATE.start_main_~k~5), 151157#(<= 34 ULTIMATE.start_main_~k~5), 151162#(<= 39 ULTIMATE.start_main_~k~5), 151163#(<= 40 ULTIMATE.start_main_~k~5), 151160#(<= 37 ULTIMATE.start_main_~k~5), 151161#(<= 38 ULTIMATE.start_main_~k~5), 151166#(<= 43 ULTIMATE.start_main_~k~5), 151167#(<= 44 ULTIMATE.start_main_~k~5), 151164#(<= 41 ULTIMATE.start_main_~k~5), 151165#(<= 42 ULTIMATE.start_main_~k~5)] [2018-07-23 13:42:45,785 INFO L134 CoverageAnalysis]: Checked inductivity of 12376 backedges. 4186 proven. 8190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:45,785 INFO L450 AbstractCegarLoop]: Interpolant automaton has 95 states [2018-07-23 13:42:45,786 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2018-07-23 13:42:45,786 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4373, Invalid=4557, Unknown=0, NotChecked=0, Total=8930 [2018-07-23 13:42:45,786 INFO L87 Difference]: Start difference. First operand 277 states and 278 transitions. Second operand 95 states. [2018-07-23 13:42:46,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:42:46,144 INFO L93 Difference]: Finished difference Result 285 states and 286 transitions. [2018-07-23 13:42:46,144 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 186 states. [2018-07-23 13:42:46,144 INFO L78 Accepts]: Start accepts. Automaton has 95 states. Word has length 276 [2018-07-23 13:42:46,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:42:46,145 INFO L225 Difference]: With dead ends: 285 [2018-07-23 13:42:46,145 INFO L226 Difference]: Without dead ends: 283 [2018-07-23 13:42:46,147 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 185 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8372 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13113, Invalid=21669, Unknown=0, NotChecked=0, Total=34782 [2018-07-23 13:42:46,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2018-07-23 13:42:46,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 279. [2018-07-23 13:42:46,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 279 states. [2018-07-23 13:42:46,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 280 transitions. [2018-07-23 13:42:46,179 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 280 transitions. Word has length 276 [2018-07-23 13:42:46,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:42:46,179 INFO L471 AbstractCegarLoop]: Abstraction has 279 states and 280 transitions. [2018-07-23 13:42:46,179 INFO L472 AbstractCegarLoop]: Interpolant automaton has 95 states. [2018-07-23 13:42:46,179 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 280 transitions. [2018-07-23 13:42:46,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2018-07-23 13:42:46,180 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:42:46,180 INFO L357 BasicCegarLoop]: trace histogram [92, 91, 91, 1, 1, 1, 1] [2018-07-23 13:42:46,180 INFO L414 AbstractCegarLoop]: === Iteration 183 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:42:46,180 INFO L82 PathProgramCache]: Analyzing trace with hash 637782266, now seen corresponding path program 181 times [2018-07-23 13:42:46,181 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:42:46,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:42:46,932 INFO L134 CoverageAnalysis]: Checked inductivity of 12558 backedges. 8372 proven. 4186 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:46,933 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:42:46,933 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [185] total 185 [2018-07-23 13:42:46,933 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:42:46,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:46,934 INFO L185 omatonBuilderFactory]: Interpolants [152578#(<= ULTIMATE.start_main_~i~5 48), 152579#(<= ULTIMATE.start_main_~i~5 49), 152576#(<= ULTIMATE.start_main_~i~5 46), 152577#(<= ULTIMATE.start_main_~i~5 47), 152582#(<= ULTIMATE.start_main_~i~5 52), 152583#(<= ULTIMATE.start_main_~i~5 53), 152580#(<= ULTIMATE.start_main_~i~5 50), 152581#(<= ULTIMATE.start_main_~i~5 51), 152586#(<= ULTIMATE.start_main_~i~5 56), 152587#(<= ULTIMATE.start_main_~i~5 57), 152584#(<= ULTIMATE.start_main_~i~5 54), 152585#(<= ULTIMATE.start_main_~i~5 55), 152590#(<= ULTIMATE.start_main_~i~5 60), 152591#(<= ULTIMATE.start_main_~i~5 61), 152588#(<= ULTIMATE.start_main_~i~5 58), 152589#(<= ULTIMATE.start_main_~i~5 59), 152594#(<= ULTIMATE.start_main_~i~5 64), 152595#(<= ULTIMATE.start_main_~i~5 65), 152592#(<= ULTIMATE.start_main_~i~5 62), 152593#(<= ULTIMATE.start_main_~i~5 63), 152598#(<= ULTIMATE.start_main_~i~5 68), 152599#(<= ULTIMATE.start_main_~i~5 69), 152596#(<= ULTIMATE.start_main_~i~5 66), 152597#(<= ULTIMATE.start_main_~i~5 67), 152602#(<= ULTIMATE.start_main_~i~5 72), 152603#(<= ULTIMATE.start_main_~i~5 73), 152600#(<= ULTIMATE.start_main_~i~5 70), 152601#(<= ULTIMATE.start_main_~i~5 71), 152606#(<= ULTIMATE.start_main_~i~5 76), 152607#(<= ULTIMATE.start_main_~i~5 77), 152604#(<= ULTIMATE.start_main_~i~5 74), 152605#(<= ULTIMATE.start_main_~i~5 75), 152610#(<= ULTIMATE.start_main_~i~5 80), 152611#(<= ULTIMATE.start_main_~i~5 81), 152608#(<= ULTIMATE.start_main_~i~5 78), 152609#(<= ULTIMATE.start_main_~i~5 79), 152614#(<= ULTIMATE.start_main_~i~5 84), 152615#(<= ULTIMATE.start_main_~i~5 85), 152612#(<= ULTIMATE.start_main_~i~5 82), 152613#(<= ULTIMATE.start_main_~i~5 83), 152618#(<= ULTIMATE.start_main_~i~5 88), 152619#(<= ULTIMATE.start_main_~i~5 89), 152616#(<= ULTIMATE.start_main_~i~5 86), 152617#(<= ULTIMATE.start_main_~i~5 87), 152622#(<= ULTIMATE.start_main_~j~5 91), 152623#(<= ULTIMATE.start_main_~j~5 90), 152620#(<= ULTIMATE.start_main_~i~5 90), 152621#(<= ULTIMATE.start_main_~i~5 91), 152626#(<= ULTIMATE.start_main_~j~5 87), 152627#(<= ULTIMATE.start_main_~j~5 86), 152624#(<= ULTIMATE.start_main_~j~5 89), 152625#(<= ULTIMATE.start_main_~j~5 88), 152630#(<= ULTIMATE.start_main_~j~5 83), 152631#(<= ULTIMATE.start_main_~j~5 82), 152628#(<= ULTIMATE.start_main_~j~5 85), 152629#(<= ULTIMATE.start_main_~j~5 84), 152634#(<= ULTIMATE.start_main_~j~5 79), 152635#(<= ULTIMATE.start_main_~j~5 78), 152632#(<= ULTIMATE.start_main_~j~5 81), 152633#(<= ULTIMATE.start_main_~j~5 80), 152638#(<= ULTIMATE.start_main_~j~5 75), 152639#(<= ULTIMATE.start_main_~j~5 74), 152636#(<= ULTIMATE.start_main_~j~5 77), 152637#(<= ULTIMATE.start_main_~j~5 76), 152642#(<= ULTIMATE.start_main_~j~5 71), 152643#(<= ULTIMATE.start_main_~j~5 70), 152640#(<= ULTIMATE.start_main_~j~5 73), 152641#(<= ULTIMATE.start_main_~j~5 72), 152646#(<= ULTIMATE.start_main_~j~5 67), 152647#(<= ULTIMATE.start_main_~j~5 66), 152644#(<= ULTIMATE.start_main_~j~5 69), 152645#(<= ULTIMATE.start_main_~j~5 68), 152650#(<= ULTIMATE.start_main_~j~5 63), 152651#(<= ULTIMATE.start_main_~j~5 62), 152648#(<= ULTIMATE.start_main_~j~5 65), 152649#(<= ULTIMATE.start_main_~j~5 64), 152654#(<= ULTIMATE.start_main_~j~5 59), 152655#(<= ULTIMATE.start_main_~j~5 58), 152652#(<= ULTIMATE.start_main_~j~5 61), 152653#(<= ULTIMATE.start_main_~j~5 60), 152658#(<= ULTIMATE.start_main_~j~5 55), 152659#(<= ULTIMATE.start_main_~j~5 54), 152656#(<= ULTIMATE.start_main_~j~5 57), 152657#(<= ULTIMATE.start_main_~j~5 56), 152662#(<= ULTIMATE.start_main_~j~5 51), 152663#(<= ULTIMATE.start_main_~j~5 50), 152660#(<= ULTIMATE.start_main_~j~5 53), 152661#(<= ULTIMATE.start_main_~j~5 52), 152666#(<= ULTIMATE.start_main_~j~5 47), 152667#(<= ULTIMATE.start_main_~j~5 46), 152664#(<= ULTIMATE.start_main_~j~5 49), 152665#(<= ULTIMATE.start_main_~j~5 48), 152670#(<= ULTIMATE.start_main_~j~5 43), 152671#(<= ULTIMATE.start_main_~j~5 42), 152668#(<= ULTIMATE.start_main_~j~5 45), 152669#(<= ULTIMATE.start_main_~j~5 44), 152674#(<= ULTIMATE.start_main_~j~5 39), 152675#(<= ULTIMATE.start_main_~j~5 38), 152672#(<= ULTIMATE.start_main_~j~5 41), 152673#(<= ULTIMATE.start_main_~j~5 40), 152678#(<= ULTIMATE.start_main_~j~5 35), 152679#(<= ULTIMATE.start_main_~j~5 34), 152676#(<= ULTIMATE.start_main_~j~5 37), 152677#(<= ULTIMATE.start_main_~j~5 36), 152682#(<= ULTIMATE.start_main_~j~5 31), 152683#(<= ULTIMATE.start_main_~j~5 30), 152680#(<= ULTIMATE.start_main_~j~5 33), 152681#(<= ULTIMATE.start_main_~j~5 32), 152686#(<= ULTIMATE.start_main_~j~5 27), 152687#(<= ULTIMATE.start_main_~j~5 26), 152684#(<= ULTIMATE.start_main_~j~5 29), 152685#(<= ULTIMATE.start_main_~j~5 28), 152690#(<= ULTIMATE.start_main_~j~5 23), 152691#(<= ULTIMATE.start_main_~j~5 22), 152688#(<= ULTIMATE.start_main_~j~5 25), 152689#(<= ULTIMATE.start_main_~j~5 24), 152694#(<= ULTIMATE.start_main_~j~5 19), 152695#(<= ULTIMATE.start_main_~j~5 18), 152692#(<= ULTIMATE.start_main_~j~5 21), 152693#(<= ULTIMATE.start_main_~j~5 20), 152698#(<= ULTIMATE.start_main_~j~5 15), 152699#(<= ULTIMATE.start_main_~j~5 14), 152696#(<= ULTIMATE.start_main_~j~5 17), 152697#(<= ULTIMATE.start_main_~j~5 16), 152702#(<= ULTIMATE.start_main_~j~5 11), 152703#(<= ULTIMATE.start_main_~j~5 10), 152700#(<= ULTIMATE.start_main_~j~5 13), 152701#(<= ULTIMATE.start_main_~j~5 12), 152706#(<= ULTIMATE.start_main_~j~5 7), 152707#(<= ULTIMATE.start_main_~j~5 6), 152704#(<= ULTIMATE.start_main_~j~5 9), 152705#(<= ULTIMATE.start_main_~j~5 8), 152710#(<= ULTIMATE.start_main_~j~5 3), 152711#(<= ULTIMATE.start_main_~j~5 2), 152708#(<= ULTIMATE.start_main_~j~5 5), 152709#(<= ULTIMATE.start_main_~j~5 4), 152712#(<= ULTIMATE.start_main_~j~5 1), 152713#(<= ULTIMATE.start_main_~j~5 0), 152530#(<= ULTIMATE.start_main_~i~5 0), 152531#(<= ULTIMATE.start_main_~i~5 1), 152528#true, 152529#false, 152534#(<= ULTIMATE.start_main_~i~5 4), 152535#(<= ULTIMATE.start_main_~i~5 5), 152532#(<= ULTIMATE.start_main_~i~5 2), 152533#(<= ULTIMATE.start_main_~i~5 3), 152538#(<= ULTIMATE.start_main_~i~5 8), 152539#(<= ULTIMATE.start_main_~i~5 9), 152536#(<= ULTIMATE.start_main_~i~5 6), 152537#(<= ULTIMATE.start_main_~i~5 7), 152542#(<= ULTIMATE.start_main_~i~5 12), 152543#(<= ULTIMATE.start_main_~i~5 13), 152540#(<= ULTIMATE.start_main_~i~5 10), 152541#(<= ULTIMATE.start_main_~i~5 11), 152546#(<= ULTIMATE.start_main_~i~5 16), 152547#(<= ULTIMATE.start_main_~i~5 17), 152544#(<= ULTIMATE.start_main_~i~5 14), 152545#(<= ULTIMATE.start_main_~i~5 15), 152550#(<= ULTIMATE.start_main_~i~5 20), 152551#(<= ULTIMATE.start_main_~i~5 21), 152548#(<= ULTIMATE.start_main_~i~5 18), 152549#(<= ULTIMATE.start_main_~i~5 19), 152554#(<= ULTIMATE.start_main_~i~5 24), 152555#(<= ULTIMATE.start_main_~i~5 25), 152552#(<= ULTIMATE.start_main_~i~5 22), 152553#(<= ULTIMATE.start_main_~i~5 23), 152558#(<= ULTIMATE.start_main_~i~5 28), 152559#(<= ULTIMATE.start_main_~i~5 29), 152556#(<= ULTIMATE.start_main_~i~5 26), 152557#(<= ULTIMATE.start_main_~i~5 27), 152562#(<= ULTIMATE.start_main_~i~5 32), 152563#(<= ULTIMATE.start_main_~i~5 33), 152560#(<= ULTIMATE.start_main_~i~5 30), 152561#(<= ULTIMATE.start_main_~i~5 31), 152566#(<= ULTIMATE.start_main_~i~5 36), 152567#(<= ULTIMATE.start_main_~i~5 37), 152564#(<= ULTIMATE.start_main_~i~5 34), 152565#(<= ULTIMATE.start_main_~i~5 35), 152570#(<= ULTIMATE.start_main_~i~5 40), 152571#(<= ULTIMATE.start_main_~i~5 41), 152568#(<= ULTIMATE.start_main_~i~5 38), 152569#(<= ULTIMATE.start_main_~i~5 39), 152574#(<= ULTIMATE.start_main_~i~5 44), 152575#(<= ULTIMATE.start_main_~i~5 45), 152572#(<= ULTIMATE.start_main_~i~5 42), 152573#(<= ULTIMATE.start_main_~i~5 43)] [2018-07-23 13:42:46,934 INFO L134 CoverageAnalysis]: Checked inductivity of 12558 backedges. 8372 proven. 4186 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:46,934 INFO L450 AbstractCegarLoop]: Interpolant automaton has 186 states [2018-07-23 13:42:46,935 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 186 interpolants. [2018-07-23 13:42:46,937 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8741, Invalid=25669, Unknown=0, NotChecked=0, Total=34410 [2018-07-23 13:42:46,937 INFO L87 Difference]: Start difference. First operand 279 states and 280 transitions. Second operand 186 states. [2018-07-23 13:42:48,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:42:48,234 INFO L93 Difference]: Finished difference Result 467 states and 469 transitions. [2018-07-23 13:42:48,234 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 186 states. [2018-07-23 13:42:48,234 INFO L78 Accepts]: Start accepts. Automaton has 186 states. Word has length 278 [2018-07-23 13:42:48,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:42:48,235 INFO L225 Difference]: With dead ends: 467 [2018-07-23 13:42:48,235 INFO L226 Difference]: Without dead ends: 280 [2018-07-23 13:42:48,239 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 276 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12467 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=17481, Invalid=59525, Unknown=0, NotChecked=0, Total=77006 [2018-07-23 13:42:48,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2018-07-23 13:42:48,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 280. [2018-07-23 13:42:48,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2018-07-23 13:42:48,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 281 transitions. [2018-07-23 13:42:48,270 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 281 transitions. Word has length 278 [2018-07-23 13:42:48,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:42:48,270 INFO L471 AbstractCegarLoop]: Abstraction has 280 states and 281 transitions. [2018-07-23 13:42:48,271 INFO L472 AbstractCegarLoop]: Interpolant automaton has 186 states. [2018-07-23 13:42:48,271 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 281 transitions. [2018-07-23 13:42:48,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2018-07-23 13:42:48,271 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:42:48,271 INFO L357 BasicCegarLoop]: trace histogram [92, 92, 91, 1, 1, 1, 1] [2018-07-23 13:42:48,272 INFO L414 AbstractCegarLoop]: === Iteration 184 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:42:48,272 INFO L82 PathProgramCache]: Analyzing trace with hash -1272495181, now seen corresponding path program 182 times [2018-07-23 13:42:48,272 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:42:48,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:42:48,724 INFO L134 CoverageAnalysis]: Checked inductivity of 12650 backedges. 4278 proven. 8372 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:48,724 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:42:48,724 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [95] total 95 [2018-07-23 13:42:48,725 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:42:48,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:48,725 INFO L185 omatonBuilderFactory]: Interpolants [154394#(<= 0 ULTIMATE.start_main_~k~5), 154395#(<= 1 ULTIMATE.start_main_~k~5), 154392#true, 154393#false, 154398#(<= 4 ULTIMATE.start_main_~k~5), 154399#(<= 5 ULTIMATE.start_main_~k~5), 154396#(<= 2 ULTIMATE.start_main_~k~5), 154397#(<= 3 ULTIMATE.start_main_~k~5), 154402#(<= 8 ULTIMATE.start_main_~k~5), 154403#(<= 9 ULTIMATE.start_main_~k~5), 154400#(<= 6 ULTIMATE.start_main_~k~5), 154401#(<= 7 ULTIMATE.start_main_~k~5), 154406#(<= 12 ULTIMATE.start_main_~k~5), 154407#(<= 13 ULTIMATE.start_main_~k~5), 154404#(<= 10 ULTIMATE.start_main_~k~5), 154405#(<= 11 ULTIMATE.start_main_~k~5), 154410#(<= 16 ULTIMATE.start_main_~k~5), 154411#(<= 17 ULTIMATE.start_main_~k~5), 154408#(<= 14 ULTIMATE.start_main_~k~5), 154409#(<= 15 ULTIMATE.start_main_~k~5), 154414#(<= 20 ULTIMATE.start_main_~k~5), 154415#(<= 21 ULTIMATE.start_main_~k~5), 154412#(<= 18 ULTIMATE.start_main_~k~5), 154413#(<= 19 ULTIMATE.start_main_~k~5), 154418#(<= 24 ULTIMATE.start_main_~k~5), 154419#(<= 25 ULTIMATE.start_main_~k~5), 154416#(<= 22 ULTIMATE.start_main_~k~5), 154417#(<= 23 ULTIMATE.start_main_~k~5), 154422#(<= 28 ULTIMATE.start_main_~k~5), 154423#(<= 29 ULTIMATE.start_main_~k~5), 154420#(<= 26 ULTIMATE.start_main_~k~5), 154421#(<= 27 ULTIMATE.start_main_~k~5), 154426#(<= 32 ULTIMATE.start_main_~k~5), 154427#(<= 33 ULTIMATE.start_main_~k~5), 154424#(<= 30 ULTIMATE.start_main_~k~5), 154425#(<= 31 ULTIMATE.start_main_~k~5), 154430#(<= 36 ULTIMATE.start_main_~k~5), 154431#(<= 37 ULTIMATE.start_main_~k~5), 154428#(<= 34 ULTIMATE.start_main_~k~5), 154429#(<= 35 ULTIMATE.start_main_~k~5), 154434#(<= 40 ULTIMATE.start_main_~k~5), 154435#(<= 41 ULTIMATE.start_main_~k~5), 154432#(<= 38 ULTIMATE.start_main_~k~5), 154433#(<= 39 ULTIMATE.start_main_~k~5), 154438#(<= 44 ULTIMATE.start_main_~k~5), 154439#(<= 45 ULTIMATE.start_main_~k~5), 154436#(<= 42 ULTIMATE.start_main_~k~5), 154437#(<= 43 ULTIMATE.start_main_~k~5), 154442#(<= 48 ULTIMATE.start_main_~k~5), 154443#(<= 49 ULTIMATE.start_main_~k~5), 154440#(<= 46 ULTIMATE.start_main_~k~5), 154441#(<= 47 ULTIMATE.start_main_~k~5), 154446#(<= 52 ULTIMATE.start_main_~k~5), 154447#(<= 53 ULTIMATE.start_main_~k~5), 154444#(<= 50 ULTIMATE.start_main_~k~5), 154445#(<= 51 ULTIMATE.start_main_~k~5), 154450#(<= 56 ULTIMATE.start_main_~k~5), 154451#(<= 57 ULTIMATE.start_main_~k~5), 154448#(<= 54 ULTIMATE.start_main_~k~5), 154449#(<= 55 ULTIMATE.start_main_~k~5), 154454#(<= 60 ULTIMATE.start_main_~k~5), 154455#(<= 61 ULTIMATE.start_main_~k~5), 154452#(<= 58 ULTIMATE.start_main_~k~5), 154453#(<= 59 ULTIMATE.start_main_~k~5), 154458#(<= 64 ULTIMATE.start_main_~k~5), 154459#(<= 65 ULTIMATE.start_main_~k~5), 154456#(<= 62 ULTIMATE.start_main_~k~5), 154457#(<= 63 ULTIMATE.start_main_~k~5), 154462#(<= 68 ULTIMATE.start_main_~k~5), 154463#(<= 69 ULTIMATE.start_main_~k~5), 154460#(<= 66 ULTIMATE.start_main_~k~5), 154461#(<= 67 ULTIMATE.start_main_~k~5), 154466#(<= 72 ULTIMATE.start_main_~k~5), 154467#(<= 73 ULTIMATE.start_main_~k~5), 154464#(<= 70 ULTIMATE.start_main_~k~5), 154465#(<= 71 ULTIMATE.start_main_~k~5), 154470#(<= 76 ULTIMATE.start_main_~k~5), 154471#(<= 77 ULTIMATE.start_main_~k~5), 154468#(<= 74 ULTIMATE.start_main_~k~5), 154469#(<= 75 ULTIMATE.start_main_~k~5), 154474#(<= 80 ULTIMATE.start_main_~k~5), 154475#(<= 81 ULTIMATE.start_main_~k~5), 154472#(<= 78 ULTIMATE.start_main_~k~5), 154473#(<= 79 ULTIMATE.start_main_~k~5), 154478#(<= 84 ULTIMATE.start_main_~k~5), 154479#(<= 85 ULTIMATE.start_main_~k~5), 154476#(<= 82 ULTIMATE.start_main_~k~5), 154477#(<= 83 ULTIMATE.start_main_~k~5), 154482#(<= 88 ULTIMATE.start_main_~k~5), 154483#(<= 89 ULTIMATE.start_main_~k~5), 154480#(<= 86 ULTIMATE.start_main_~k~5), 154481#(<= 87 ULTIMATE.start_main_~k~5), 154486#(<= 92 ULTIMATE.start_main_~k~5), 154487#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 154484#(<= 90 ULTIMATE.start_main_~k~5), 154485#(<= 91 ULTIMATE.start_main_~k~5)] [2018-07-23 13:42:48,726 INFO L134 CoverageAnalysis]: Checked inductivity of 12650 backedges. 4278 proven. 8372 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:48,726 INFO L450 AbstractCegarLoop]: Interpolant automaton has 96 states [2018-07-23 13:42:48,727 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2018-07-23 13:42:48,727 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4467, Invalid=4653, Unknown=0, NotChecked=0, Total=9120 [2018-07-23 13:42:48,728 INFO L87 Difference]: Start difference. First operand 280 states and 281 transitions. Second operand 96 states. [2018-07-23 13:42:49,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:42:49,072 INFO L93 Difference]: Finished difference Result 288 states and 289 transitions. [2018-07-23 13:42:49,072 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 188 states. [2018-07-23 13:42:49,073 INFO L78 Accepts]: Start accepts. Automaton has 96 states. Word has length 279 [2018-07-23 13:42:49,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:42:49,073 INFO L225 Difference]: With dead ends: 288 [2018-07-23 13:42:49,073 INFO L226 Difference]: Without dead ends: 286 [2018-07-23 13:42:49,075 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 187 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8556 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13395, Invalid=22137, Unknown=0, NotChecked=0, Total=35532 [2018-07-23 13:42:49,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2018-07-23 13:42:49,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 282. [2018-07-23 13:42:49,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2018-07-23 13:42:49,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 283 transitions. [2018-07-23 13:42:49,108 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 283 transitions. Word has length 279 [2018-07-23 13:42:49,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:42:49,109 INFO L471 AbstractCegarLoop]: Abstraction has 282 states and 283 transitions. [2018-07-23 13:42:49,109 INFO L472 AbstractCegarLoop]: Interpolant automaton has 96 states. [2018-07-23 13:42:49,109 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 283 transitions. [2018-07-23 13:42:49,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2018-07-23 13:42:49,109 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:42:49,110 INFO L357 BasicCegarLoop]: trace histogram [93, 92, 92, 1, 1, 1, 1] [2018-07-23 13:42:49,110 INFO L414 AbstractCegarLoop]: === Iteration 185 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:42:49,110 INFO L82 PathProgramCache]: Analyzing trace with hash 1197876443, now seen corresponding path program 183 times [2018-07-23 13:42:49,110 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:42:49,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:42:49,831 INFO L134 CoverageAnalysis]: Checked inductivity of 12834 backedges. 8556 proven. 4278 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:49,831 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:42:49,831 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [187] total 187 [2018-07-23 13:42:49,832 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:42:49,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:49,832 INFO L185 omatonBuilderFactory]: Interpolants [155906#(<= ULTIMATE.start_main_~i~5 90), 155907#(<= ULTIMATE.start_main_~i~5 91), 155904#(<= ULTIMATE.start_main_~i~5 88), 155905#(<= ULTIMATE.start_main_~i~5 89), 155910#(<= ULTIMATE.start_main_~j~5 91), 155911#(<= ULTIMATE.start_main_~j~5 90), 155908#(<= ULTIMATE.start_main_~i~5 92), 155909#(<= ULTIMATE.start_main_~j~5 92), 155914#(<= ULTIMATE.start_main_~j~5 87), 155915#(<= ULTIMATE.start_main_~j~5 86), 155912#(<= ULTIMATE.start_main_~j~5 89), 155913#(<= ULTIMATE.start_main_~j~5 88), 155918#(<= ULTIMATE.start_main_~j~5 83), 155919#(<= ULTIMATE.start_main_~j~5 82), 155916#(<= ULTIMATE.start_main_~j~5 85), 155917#(<= ULTIMATE.start_main_~j~5 84), 155922#(<= ULTIMATE.start_main_~j~5 79), 155923#(<= ULTIMATE.start_main_~j~5 78), 155920#(<= ULTIMATE.start_main_~j~5 81), 155921#(<= ULTIMATE.start_main_~j~5 80), 155926#(<= ULTIMATE.start_main_~j~5 75), 155927#(<= ULTIMATE.start_main_~j~5 74), 155924#(<= ULTIMATE.start_main_~j~5 77), 155925#(<= ULTIMATE.start_main_~j~5 76), 155930#(<= ULTIMATE.start_main_~j~5 71), 155931#(<= ULTIMATE.start_main_~j~5 70), 155928#(<= ULTIMATE.start_main_~j~5 73), 155929#(<= ULTIMATE.start_main_~j~5 72), 155934#(<= ULTIMATE.start_main_~j~5 67), 155935#(<= ULTIMATE.start_main_~j~5 66), 155932#(<= ULTIMATE.start_main_~j~5 69), 155933#(<= ULTIMATE.start_main_~j~5 68), 155938#(<= ULTIMATE.start_main_~j~5 63), 155939#(<= ULTIMATE.start_main_~j~5 62), 155936#(<= ULTIMATE.start_main_~j~5 65), 155937#(<= ULTIMATE.start_main_~j~5 64), 155942#(<= ULTIMATE.start_main_~j~5 59), 155943#(<= ULTIMATE.start_main_~j~5 58), 155940#(<= ULTIMATE.start_main_~j~5 61), 155941#(<= ULTIMATE.start_main_~j~5 60), 155946#(<= ULTIMATE.start_main_~j~5 55), 155947#(<= ULTIMATE.start_main_~j~5 54), 155944#(<= ULTIMATE.start_main_~j~5 57), 155945#(<= ULTIMATE.start_main_~j~5 56), 155950#(<= ULTIMATE.start_main_~j~5 51), 155951#(<= ULTIMATE.start_main_~j~5 50), 155948#(<= ULTIMATE.start_main_~j~5 53), 155949#(<= ULTIMATE.start_main_~j~5 52), 155954#(<= ULTIMATE.start_main_~j~5 47), 155955#(<= ULTIMATE.start_main_~j~5 46), 155952#(<= ULTIMATE.start_main_~j~5 49), 155953#(<= ULTIMATE.start_main_~j~5 48), 155958#(<= ULTIMATE.start_main_~j~5 43), 155959#(<= ULTIMATE.start_main_~j~5 42), 155956#(<= ULTIMATE.start_main_~j~5 45), 155957#(<= ULTIMATE.start_main_~j~5 44), 155962#(<= ULTIMATE.start_main_~j~5 39), 155963#(<= ULTIMATE.start_main_~j~5 38), 155960#(<= ULTIMATE.start_main_~j~5 41), 155961#(<= ULTIMATE.start_main_~j~5 40), 155966#(<= ULTIMATE.start_main_~j~5 35), 155967#(<= ULTIMATE.start_main_~j~5 34), 155964#(<= ULTIMATE.start_main_~j~5 37), 155965#(<= ULTIMATE.start_main_~j~5 36), 155970#(<= ULTIMATE.start_main_~j~5 31), 155971#(<= ULTIMATE.start_main_~j~5 30), 155968#(<= ULTIMATE.start_main_~j~5 33), 155969#(<= ULTIMATE.start_main_~j~5 32), 155974#(<= ULTIMATE.start_main_~j~5 27), 155975#(<= ULTIMATE.start_main_~j~5 26), 155972#(<= ULTIMATE.start_main_~j~5 29), 155973#(<= ULTIMATE.start_main_~j~5 28), 155978#(<= ULTIMATE.start_main_~j~5 23), 155979#(<= ULTIMATE.start_main_~j~5 22), 155976#(<= ULTIMATE.start_main_~j~5 25), 155977#(<= ULTIMATE.start_main_~j~5 24), 155982#(<= ULTIMATE.start_main_~j~5 19), 155983#(<= ULTIMATE.start_main_~j~5 18), 155980#(<= ULTIMATE.start_main_~j~5 21), 155981#(<= ULTIMATE.start_main_~j~5 20), 155986#(<= ULTIMATE.start_main_~j~5 15), 155987#(<= ULTIMATE.start_main_~j~5 14), 155984#(<= ULTIMATE.start_main_~j~5 17), 155985#(<= ULTIMATE.start_main_~j~5 16), 155990#(<= ULTIMATE.start_main_~j~5 11), 155991#(<= ULTIMATE.start_main_~j~5 10), 155988#(<= ULTIMATE.start_main_~j~5 13), 155989#(<= ULTIMATE.start_main_~j~5 12), 155994#(<= ULTIMATE.start_main_~j~5 7), 155995#(<= ULTIMATE.start_main_~j~5 6), 155992#(<= ULTIMATE.start_main_~j~5 9), 155993#(<= ULTIMATE.start_main_~j~5 8), 155998#(<= ULTIMATE.start_main_~j~5 3), 155999#(<= ULTIMATE.start_main_~j~5 2), 155996#(<= ULTIMATE.start_main_~j~5 5), 155997#(<= ULTIMATE.start_main_~j~5 4), 156000#(<= ULTIMATE.start_main_~j~5 1), 156001#(<= ULTIMATE.start_main_~j~5 0), 155814#true, 155815#false, 155818#(<= ULTIMATE.start_main_~i~5 2), 155819#(<= ULTIMATE.start_main_~i~5 3), 155816#(<= ULTIMATE.start_main_~i~5 0), 155817#(<= ULTIMATE.start_main_~i~5 1), 155822#(<= ULTIMATE.start_main_~i~5 6), 155823#(<= ULTIMATE.start_main_~i~5 7), 155820#(<= ULTIMATE.start_main_~i~5 4), 155821#(<= ULTIMATE.start_main_~i~5 5), 155826#(<= ULTIMATE.start_main_~i~5 10), 155827#(<= ULTIMATE.start_main_~i~5 11), 155824#(<= ULTIMATE.start_main_~i~5 8), 155825#(<= ULTIMATE.start_main_~i~5 9), 155830#(<= ULTIMATE.start_main_~i~5 14), 155831#(<= ULTIMATE.start_main_~i~5 15), 155828#(<= ULTIMATE.start_main_~i~5 12), 155829#(<= ULTIMATE.start_main_~i~5 13), 155834#(<= ULTIMATE.start_main_~i~5 18), 155835#(<= ULTIMATE.start_main_~i~5 19), 155832#(<= ULTIMATE.start_main_~i~5 16), 155833#(<= ULTIMATE.start_main_~i~5 17), 155838#(<= ULTIMATE.start_main_~i~5 22), 155839#(<= ULTIMATE.start_main_~i~5 23), 155836#(<= ULTIMATE.start_main_~i~5 20), 155837#(<= ULTIMATE.start_main_~i~5 21), 155842#(<= ULTIMATE.start_main_~i~5 26), 155843#(<= ULTIMATE.start_main_~i~5 27), 155840#(<= ULTIMATE.start_main_~i~5 24), 155841#(<= ULTIMATE.start_main_~i~5 25), 155846#(<= ULTIMATE.start_main_~i~5 30), 155847#(<= ULTIMATE.start_main_~i~5 31), 155844#(<= ULTIMATE.start_main_~i~5 28), 155845#(<= ULTIMATE.start_main_~i~5 29), 155850#(<= ULTIMATE.start_main_~i~5 34), 155851#(<= ULTIMATE.start_main_~i~5 35), 155848#(<= ULTIMATE.start_main_~i~5 32), 155849#(<= ULTIMATE.start_main_~i~5 33), 155854#(<= ULTIMATE.start_main_~i~5 38), 155855#(<= ULTIMATE.start_main_~i~5 39), 155852#(<= ULTIMATE.start_main_~i~5 36), 155853#(<= ULTIMATE.start_main_~i~5 37), 155858#(<= ULTIMATE.start_main_~i~5 42), 155859#(<= ULTIMATE.start_main_~i~5 43), 155856#(<= ULTIMATE.start_main_~i~5 40), 155857#(<= ULTIMATE.start_main_~i~5 41), 155862#(<= ULTIMATE.start_main_~i~5 46), 155863#(<= ULTIMATE.start_main_~i~5 47), 155860#(<= ULTIMATE.start_main_~i~5 44), 155861#(<= ULTIMATE.start_main_~i~5 45), 155866#(<= ULTIMATE.start_main_~i~5 50), 155867#(<= ULTIMATE.start_main_~i~5 51), 155864#(<= ULTIMATE.start_main_~i~5 48), 155865#(<= ULTIMATE.start_main_~i~5 49), 155870#(<= ULTIMATE.start_main_~i~5 54), 155871#(<= ULTIMATE.start_main_~i~5 55), 155868#(<= ULTIMATE.start_main_~i~5 52), 155869#(<= ULTIMATE.start_main_~i~5 53), 155874#(<= ULTIMATE.start_main_~i~5 58), 155875#(<= ULTIMATE.start_main_~i~5 59), 155872#(<= ULTIMATE.start_main_~i~5 56), 155873#(<= ULTIMATE.start_main_~i~5 57), 155878#(<= ULTIMATE.start_main_~i~5 62), 155879#(<= ULTIMATE.start_main_~i~5 63), 155876#(<= ULTIMATE.start_main_~i~5 60), 155877#(<= ULTIMATE.start_main_~i~5 61), 155882#(<= ULTIMATE.start_main_~i~5 66), 155883#(<= ULTIMATE.start_main_~i~5 67), 155880#(<= ULTIMATE.start_main_~i~5 64), 155881#(<= ULTIMATE.start_main_~i~5 65), 155886#(<= ULTIMATE.start_main_~i~5 70), 155887#(<= ULTIMATE.start_main_~i~5 71), 155884#(<= ULTIMATE.start_main_~i~5 68), 155885#(<= ULTIMATE.start_main_~i~5 69), 155890#(<= ULTIMATE.start_main_~i~5 74), 155891#(<= ULTIMATE.start_main_~i~5 75), 155888#(<= ULTIMATE.start_main_~i~5 72), 155889#(<= ULTIMATE.start_main_~i~5 73), 155894#(<= ULTIMATE.start_main_~i~5 78), 155895#(<= ULTIMATE.start_main_~i~5 79), 155892#(<= ULTIMATE.start_main_~i~5 76), 155893#(<= ULTIMATE.start_main_~i~5 77), 155898#(<= ULTIMATE.start_main_~i~5 82), 155899#(<= ULTIMATE.start_main_~i~5 83), 155896#(<= ULTIMATE.start_main_~i~5 80), 155897#(<= ULTIMATE.start_main_~i~5 81), 155902#(<= ULTIMATE.start_main_~i~5 86), 155903#(<= ULTIMATE.start_main_~i~5 87), 155900#(<= ULTIMATE.start_main_~i~5 84), 155901#(<= ULTIMATE.start_main_~i~5 85)] [2018-07-23 13:42:49,833 INFO L134 CoverageAnalysis]: Checked inductivity of 12834 backedges. 8556 proven. 4278 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:49,833 INFO L450 AbstractCegarLoop]: Interpolant automaton has 188 states [2018-07-23 13:42:49,834 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 188 interpolants. [2018-07-23 13:42:49,835 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8929, Invalid=26227, Unknown=0, NotChecked=0, Total=35156 [2018-07-23 13:42:49,835 INFO L87 Difference]: Start difference. First operand 282 states and 283 transitions. Second operand 188 states. [2018-07-23 13:42:50,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:42:50,653 INFO L93 Difference]: Finished difference Result 472 states and 474 transitions. [2018-07-23 13:42:50,653 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 188 states. [2018-07-23 13:42:50,653 INFO L78 Accepts]: Start accepts. Automaton has 188 states. Word has length 281 [2018-07-23 13:42:50,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:42:50,653 INFO L225 Difference]: With dead ends: 472 [2018-07-23 13:42:50,654 INFO L226 Difference]: Without dead ends: 283 [2018-07-23 13:42:50,656 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 279 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12742 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=17857, Invalid=60823, Unknown=0, NotChecked=0, Total=78680 [2018-07-23 13:42:50,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2018-07-23 13:42:50,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 283. [2018-07-23 13:42:50,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 283 states. [2018-07-23 13:42:50,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 284 transitions. [2018-07-23 13:42:50,688 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 284 transitions. Word has length 281 [2018-07-23 13:42:50,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:42:50,689 INFO L471 AbstractCegarLoop]: Abstraction has 283 states and 284 transitions. [2018-07-23 13:42:50,689 INFO L472 AbstractCegarLoop]: Interpolant automaton has 188 states. [2018-07-23 13:42:50,689 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 284 transitions. [2018-07-23 13:42:50,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2018-07-23 13:42:50,689 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:42:50,689 INFO L357 BasicCegarLoop]: trace histogram [93, 93, 92, 1, 1, 1, 1] [2018-07-23 13:42:50,690 INFO L414 AbstractCegarLoop]: === Iteration 186 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:42:50,690 INFO L82 PathProgramCache]: Analyzing trace with hash 439124866, now seen corresponding path program 184 times [2018-07-23 13:42:50,690 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:42:50,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:42:51,133 INFO L134 CoverageAnalysis]: Checked inductivity of 12927 backedges. 4371 proven. 8556 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:51,134 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:42:51,134 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [96] total 96 [2018-07-23 13:42:51,134 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:42:51,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:51,134 INFO L185 omatonBuilderFactory]: Interpolants [157698#true, 157699#false, 157702#(<= 2 ULTIMATE.start_main_~k~5), 157703#(<= 3 ULTIMATE.start_main_~k~5), 157700#(<= 0 ULTIMATE.start_main_~k~5), 157701#(<= 1 ULTIMATE.start_main_~k~5), 157706#(<= 6 ULTIMATE.start_main_~k~5), 157707#(<= 7 ULTIMATE.start_main_~k~5), 157704#(<= 4 ULTIMATE.start_main_~k~5), 157705#(<= 5 ULTIMATE.start_main_~k~5), 157710#(<= 10 ULTIMATE.start_main_~k~5), 157711#(<= 11 ULTIMATE.start_main_~k~5), 157708#(<= 8 ULTIMATE.start_main_~k~5), 157709#(<= 9 ULTIMATE.start_main_~k~5), 157714#(<= 14 ULTIMATE.start_main_~k~5), 157715#(<= 15 ULTIMATE.start_main_~k~5), 157712#(<= 12 ULTIMATE.start_main_~k~5), 157713#(<= 13 ULTIMATE.start_main_~k~5), 157718#(<= 18 ULTIMATE.start_main_~k~5), 157719#(<= 19 ULTIMATE.start_main_~k~5), 157716#(<= 16 ULTIMATE.start_main_~k~5), 157717#(<= 17 ULTIMATE.start_main_~k~5), 157722#(<= 22 ULTIMATE.start_main_~k~5), 157723#(<= 23 ULTIMATE.start_main_~k~5), 157720#(<= 20 ULTIMATE.start_main_~k~5), 157721#(<= 21 ULTIMATE.start_main_~k~5), 157726#(<= 26 ULTIMATE.start_main_~k~5), 157727#(<= 27 ULTIMATE.start_main_~k~5), 157724#(<= 24 ULTIMATE.start_main_~k~5), 157725#(<= 25 ULTIMATE.start_main_~k~5), 157730#(<= 30 ULTIMATE.start_main_~k~5), 157731#(<= 31 ULTIMATE.start_main_~k~5), 157728#(<= 28 ULTIMATE.start_main_~k~5), 157729#(<= 29 ULTIMATE.start_main_~k~5), 157734#(<= 34 ULTIMATE.start_main_~k~5), 157735#(<= 35 ULTIMATE.start_main_~k~5), 157732#(<= 32 ULTIMATE.start_main_~k~5), 157733#(<= 33 ULTIMATE.start_main_~k~5), 157738#(<= 38 ULTIMATE.start_main_~k~5), 157739#(<= 39 ULTIMATE.start_main_~k~5), 157736#(<= 36 ULTIMATE.start_main_~k~5), 157737#(<= 37 ULTIMATE.start_main_~k~5), 157742#(<= 42 ULTIMATE.start_main_~k~5), 157743#(<= 43 ULTIMATE.start_main_~k~5), 157740#(<= 40 ULTIMATE.start_main_~k~5), 157741#(<= 41 ULTIMATE.start_main_~k~5), 157746#(<= 46 ULTIMATE.start_main_~k~5), 157747#(<= 47 ULTIMATE.start_main_~k~5), 157744#(<= 44 ULTIMATE.start_main_~k~5), 157745#(<= 45 ULTIMATE.start_main_~k~5), 157750#(<= 50 ULTIMATE.start_main_~k~5), 157751#(<= 51 ULTIMATE.start_main_~k~5), 157748#(<= 48 ULTIMATE.start_main_~k~5), 157749#(<= 49 ULTIMATE.start_main_~k~5), 157754#(<= 54 ULTIMATE.start_main_~k~5), 157755#(<= 55 ULTIMATE.start_main_~k~5), 157752#(<= 52 ULTIMATE.start_main_~k~5), 157753#(<= 53 ULTIMATE.start_main_~k~5), 157758#(<= 58 ULTIMATE.start_main_~k~5), 157759#(<= 59 ULTIMATE.start_main_~k~5), 157756#(<= 56 ULTIMATE.start_main_~k~5), 157757#(<= 57 ULTIMATE.start_main_~k~5), 157762#(<= 62 ULTIMATE.start_main_~k~5), 157763#(<= 63 ULTIMATE.start_main_~k~5), 157760#(<= 60 ULTIMATE.start_main_~k~5), 157761#(<= 61 ULTIMATE.start_main_~k~5), 157766#(<= 66 ULTIMATE.start_main_~k~5), 157767#(<= 67 ULTIMATE.start_main_~k~5), 157764#(<= 64 ULTIMATE.start_main_~k~5), 157765#(<= 65 ULTIMATE.start_main_~k~5), 157770#(<= 70 ULTIMATE.start_main_~k~5), 157771#(<= 71 ULTIMATE.start_main_~k~5), 157768#(<= 68 ULTIMATE.start_main_~k~5), 157769#(<= 69 ULTIMATE.start_main_~k~5), 157774#(<= 74 ULTIMATE.start_main_~k~5), 157775#(<= 75 ULTIMATE.start_main_~k~5), 157772#(<= 72 ULTIMATE.start_main_~k~5), 157773#(<= 73 ULTIMATE.start_main_~k~5), 157778#(<= 78 ULTIMATE.start_main_~k~5), 157779#(<= 79 ULTIMATE.start_main_~k~5), 157776#(<= 76 ULTIMATE.start_main_~k~5), 157777#(<= 77 ULTIMATE.start_main_~k~5), 157782#(<= 82 ULTIMATE.start_main_~k~5), 157783#(<= 83 ULTIMATE.start_main_~k~5), 157780#(<= 80 ULTIMATE.start_main_~k~5), 157781#(<= 81 ULTIMATE.start_main_~k~5), 157786#(<= 86 ULTIMATE.start_main_~k~5), 157787#(<= 87 ULTIMATE.start_main_~k~5), 157784#(<= 84 ULTIMATE.start_main_~k~5), 157785#(<= 85 ULTIMATE.start_main_~k~5), 157790#(<= 90 ULTIMATE.start_main_~k~5), 157791#(<= 91 ULTIMATE.start_main_~k~5), 157788#(<= 88 ULTIMATE.start_main_~k~5), 157789#(<= 89 ULTIMATE.start_main_~k~5), 157794#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 157792#(<= 92 ULTIMATE.start_main_~k~5), 157793#(<= 93 ULTIMATE.start_main_~k~5)] [2018-07-23 13:42:51,135 INFO L134 CoverageAnalysis]: Checked inductivity of 12927 backedges. 4371 proven. 8556 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:51,135 INFO L450 AbstractCegarLoop]: Interpolant automaton has 97 states [2018-07-23 13:42:51,136 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2018-07-23 13:42:51,136 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4562, Invalid=4750, Unknown=0, NotChecked=0, Total=9312 [2018-07-23 13:42:51,136 INFO L87 Difference]: Start difference. First operand 283 states and 284 transitions. Second operand 97 states. [2018-07-23 13:42:51,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:42:51,490 INFO L93 Difference]: Finished difference Result 291 states and 292 transitions. [2018-07-23 13:42:51,490 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 190 states. [2018-07-23 13:42:51,490 INFO L78 Accepts]: Start accepts. Automaton has 97 states. Word has length 282 [2018-07-23 13:42:51,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:42:51,491 INFO L225 Difference]: With dead ends: 291 [2018-07-23 13:42:51,491 INFO L226 Difference]: Without dead ends: 289 [2018-07-23 13:42:51,492 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 189 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8742 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13680, Invalid=22610, Unknown=0, NotChecked=0, Total=36290 [2018-07-23 13:42:51,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2018-07-23 13:42:51,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 285. [2018-07-23 13:42:51,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 285 states. [2018-07-23 13:42:51,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 286 transitions. [2018-07-23 13:42:51,526 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 286 transitions. Word has length 282 [2018-07-23 13:42:51,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:42:51,526 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 286 transitions. [2018-07-23 13:42:51,526 INFO L472 AbstractCegarLoop]: Interpolant automaton has 97 states. [2018-07-23 13:42:51,526 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 286 transitions. [2018-07-23 13:42:51,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2018-07-23 13:42:51,527 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:42:51,527 INFO L357 BasicCegarLoop]: trace histogram [94, 93, 93, 1, 1, 1, 1] [2018-07-23 13:42:51,527 INFO L414 AbstractCegarLoop]: === Iteration 187 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:42:51,527 INFO L82 PathProgramCache]: Analyzing trace with hash 1092267242, now seen corresponding path program 185 times [2018-07-23 13:42:51,527 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:42:51,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:42:52,295 INFO L134 CoverageAnalysis]: Checked inductivity of 13113 backedges. 8742 proven. 4371 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:52,296 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:42:52,296 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [189] total 189 [2018-07-23 13:42:52,296 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:42:52,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:52,297 INFO L185 omatonBuilderFactory]: Interpolants [159234#(<= ULTIMATE.start_main_~j~5 90), 159235#(<= ULTIMATE.start_main_~j~5 89), 159232#(<= ULTIMATE.start_main_~j~5 92), 159233#(<= ULTIMATE.start_main_~j~5 91), 159238#(<= ULTIMATE.start_main_~j~5 86), 159239#(<= ULTIMATE.start_main_~j~5 85), 159236#(<= ULTIMATE.start_main_~j~5 88), 159237#(<= ULTIMATE.start_main_~j~5 87), 159242#(<= ULTIMATE.start_main_~j~5 82), 159243#(<= ULTIMATE.start_main_~j~5 81), 159240#(<= ULTIMATE.start_main_~j~5 84), 159241#(<= ULTIMATE.start_main_~j~5 83), 159246#(<= ULTIMATE.start_main_~j~5 78), 159247#(<= ULTIMATE.start_main_~j~5 77), 159244#(<= ULTIMATE.start_main_~j~5 80), 159245#(<= ULTIMATE.start_main_~j~5 79), 159250#(<= ULTIMATE.start_main_~j~5 74), 159251#(<= ULTIMATE.start_main_~j~5 73), 159248#(<= ULTIMATE.start_main_~j~5 76), 159249#(<= ULTIMATE.start_main_~j~5 75), 159254#(<= ULTIMATE.start_main_~j~5 70), 159255#(<= ULTIMATE.start_main_~j~5 69), 159252#(<= ULTIMATE.start_main_~j~5 72), 159253#(<= ULTIMATE.start_main_~j~5 71), 159258#(<= ULTIMATE.start_main_~j~5 66), 159259#(<= ULTIMATE.start_main_~j~5 65), 159256#(<= ULTIMATE.start_main_~j~5 68), 159257#(<= ULTIMATE.start_main_~j~5 67), 159262#(<= ULTIMATE.start_main_~j~5 62), 159263#(<= ULTIMATE.start_main_~j~5 61), 159260#(<= ULTIMATE.start_main_~j~5 64), 159261#(<= ULTIMATE.start_main_~j~5 63), 159266#(<= ULTIMATE.start_main_~j~5 58), 159267#(<= ULTIMATE.start_main_~j~5 57), 159264#(<= ULTIMATE.start_main_~j~5 60), 159265#(<= ULTIMATE.start_main_~j~5 59), 159270#(<= ULTIMATE.start_main_~j~5 54), 159271#(<= ULTIMATE.start_main_~j~5 53), 159268#(<= ULTIMATE.start_main_~j~5 56), 159269#(<= ULTIMATE.start_main_~j~5 55), 159274#(<= ULTIMATE.start_main_~j~5 50), 159275#(<= ULTIMATE.start_main_~j~5 49), 159272#(<= ULTIMATE.start_main_~j~5 52), 159273#(<= ULTIMATE.start_main_~j~5 51), 159278#(<= ULTIMATE.start_main_~j~5 46), 159279#(<= ULTIMATE.start_main_~j~5 45), 159276#(<= ULTIMATE.start_main_~j~5 48), 159277#(<= ULTIMATE.start_main_~j~5 47), 159282#(<= ULTIMATE.start_main_~j~5 42), 159283#(<= ULTIMATE.start_main_~j~5 41), 159280#(<= ULTIMATE.start_main_~j~5 44), 159281#(<= ULTIMATE.start_main_~j~5 43), 159286#(<= ULTIMATE.start_main_~j~5 38), 159287#(<= ULTIMATE.start_main_~j~5 37), 159284#(<= ULTIMATE.start_main_~j~5 40), 159285#(<= ULTIMATE.start_main_~j~5 39), 159290#(<= ULTIMATE.start_main_~j~5 34), 159291#(<= ULTIMATE.start_main_~j~5 33), 159288#(<= ULTIMATE.start_main_~j~5 36), 159289#(<= ULTIMATE.start_main_~j~5 35), 159294#(<= ULTIMATE.start_main_~j~5 30), 159295#(<= ULTIMATE.start_main_~j~5 29), 159292#(<= ULTIMATE.start_main_~j~5 32), 159293#(<= ULTIMATE.start_main_~j~5 31), 159298#(<= ULTIMATE.start_main_~j~5 26), 159299#(<= ULTIMATE.start_main_~j~5 25), 159296#(<= ULTIMATE.start_main_~j~5 28), 159297#(<= ULTIMATE.start_main_~j~5 27), 159302#(<= ULTIMATE.start_main_~j~5 22), 159303#(<= ULTIMATE.start_main_~j~5 21), 159300#(<= ULTIMATE.start_main_~j~5 24), 159301#(<= ULTIMATE.start_main_~j~5 23), 159306#(<= ULTIMATE.start_main_~j~5 18), 159307#(<= ULTIMATE.start_main_~j~5 17), 159304#(<= ULTIMATE.start_main_~j~5 20), 159305#(<= ULTIMATE.start_main_~j~5 19), 159310#(<= ULTIMATE.start_main_~j~5 14), 159311#(<= ULTIMATE.start_main_~j~5 13), 159308#(<= ULTIMATE.start_main_~j~5 16), 159309#(<= ULTIMATE.start_main_~j~5 15), 159314#(<= ULTIMATE.start_main_~j~5 10), 159315#(<= ULTIMATE.start_main_~j~5 9), 159312#(<= ULTIMATE.start_main_~j~5 12), 159313#(<= ULTIMATE.start_main_~j~5 11), 159318#(<= ULTIMATE.start_main_~j~5 6), 159319#(<= ULTIMATE.start_main_~j~5 5), 159316#(<= ULTIMATE.start_main_~j~5 8), 159317#(<= ULTIMATE.start_main_~j~5 7), 159322#(<= ULTIMATE.start_main_~j~5 2), 159323#(<= ULTIMATE.start_main_~j~5 1), 159320#(<= ULTIMATE.start_main_~j~5 4), 159321#(<= ULTIMATE.start_main_~j~5 3), 159324#(<= ULTIMATE.start_main_~j~5 0), 159135#true, 159138#(<= ULTIMATE.start_main_~i~5 1), 159139#(<= ULTIMATE.start_main_~i~5 2), 159136#false, 159137#(<= ULTIMATE.start_main_~i~5 0), 159142#(<= ULTIMATE.start_main_~i~5 5), 159143#(<= ULTIMATE.start_main_~i~5 6), 159140#(<= ULTIMATE.start_main_~i~5 3), 159141#(<= ULTIMATE.start_main_~i~5 4), 159146#(<= ULTIMATE.start_main_~i~5 9), 159147#(<= ULTIMATE.start_main_~i~5 10), 159144#(<= ULTIMATE.start_main_~i~5 7), 159145#(<= ULTIMATE.start_main_~i~5 8), 159150#(<= ULTIMATE.start_main_~i~5 13), 159151#(<= ULTIMATE.start_main_~i~5 14), 159148#(<= ULTIMATE.start_main_~i~5 11), 159149#(<= ULTIMATE.start_main_~i~5 12), 159154#(<= ULTIMATE.start_main_~i~5 17), 159155#(<= ULTIMATE.start_main_~i~5 18), 159152#(<= ULTIMATE.start_main_~i~5 15), 159153#(<= ULTIMATE.start_main_~i~5 16), 159158#(<= ULTIMATE.start_main_~i~5 21), 159159#(<= ULTIMATE.start_main_~i~5 22), 159156#(<= ULTIMATE.start_main_~i~5 19), 159157#(<= ULTIMATE.start_main_~i~5 20), 159162#(<= ULTIMATE.start_main_~i~5 25), 159163#(<= ULTIMATE.start_main_~i~5 26), 159160#(<= ULTIMATE.start_main_~i~5 23), 159161#(<= ULTIMATE.start_main_~i~5 24), 159166#(<= ULTIMATE.start_main_~i~5 29), 159167#(<= ULTIMATE.start_main_~i~5 30), 159164#(<= ULTIMATE.start_main_~i~5 27), 159165#(<= ULTIMATE.start_main_~i~5 28), 159170#(<= ULTIMATE.start_main_~i~5 33), 159171#(<= ULTIMATE.start_main_~i~5 34), 159168#(<= ULTIMATE.start_main_~i~5 31), 159169#(<= ULTIMATE.start_main_~i~5 32), 159174#(<= ULTIMATE.start_main_~i~5 37), 159175#(<= ULTIMATE.start_main_~i~5 38), 159172#(<= ULTIMATE.start_main_~i~5 35), 159173#(<= ULTIMATE.start_main_~i~5 36), 159178#(<= ULTIMATE.start_main_~i~5 41), 159179#(<= ULTIMATE.start_main_~i~5 42), 159176#(<= ULTIMATE.start_main_~i~5 39), 159177#(<= ULTIMATE.start_main_~i~5 40), 159182#(<= ULTIMATE.start_main_~i~5 45), 159183#(<= ULTIMATE.start_main_~i~5 46), 159180#(<= ULTIMATE.start_main_~i~5 43), 159181#(<= ULTIMATE.start_main_~i~5 44), 159186#(<= ULTIMATE.start_main_~i~5 49), 159187#(<= ULTIMATE.start_main_~i~5 50), 159184#(<= ULTIMATE.start_main_~i~5 47), 159185#(<= ULTIMATE.start_main_~i~5 48), 159190#(<= ULTIMATE.start_main_~i~5 53), 159191#(<= ULTIMATE.start_main_~i~5 54), 159188#(<= ULTIMATE.start_main_~i~5 51), 159189#(<= ULTIMATE.start_main_~i~5 52), 159194#(<= ULTIMATE.start_main_~i~5 57), 159195#(<= ULTIMATE.start_main_~i~5 58), 159192#(<= ULTIMATE.start_main_~i~5 55), 159193#(<= ULTIMATE.start_main_~i~5 56), 159198#(<= ULTIMATE.start_main_~i~5 61), 159199#(<= ULTIMATE.start_main_~i~5 62), 159196#(<= ULTIMATE.start_main_~i~5 59), 159197#(<= ULTIMATE.start_main_~i~5 60), 159202#(<= ULTIMATE.start_main_~i~5 65), 159203#(<= ULTIMATE.start_main_~i~5 66), 159200#(<= ULTIMATE.start_main_~i~5 63), 159201#(<= ULTIMATE.start_main_~i~5 64), 159206#(<= ULTIMATE.start_main_~i~5 69), 159207#(<= ULTIMATE.start_main_~i~5 70), 159204#(<= ULTIMATE.start_main_~i~5 67), 159205#(<= ULTIMATE.start_main_~i~5 68), 159210#(<= ULTIMATE.start_main_~i~5 73), 159211#(<= ULTIMATE.start_main_~i~5 74), 159208#(<= ULTIMATE.start_main_~i~5 71), 159209#(<= ULTIMATE.start_main_~i~5 72), 159214#(<= ULTIMATE.start_main_~i~5 77), 159215#(<= ULTIMATE.start_main_~i~5 78), 159212#(<= ULTIMATE.start_main_~i~5 75), 159213#(<= ULTIMATE.start_main_~i~5 76), 159218#(<= ULTIMATE.start_main_~i~5 81), 159219#(<= ULTIMATE.start_main_~i~5 82), 159216#(<= ULTIMATE.start_main_~i~5 79), 159217#(<= ULTIMATE.start_main_~i~5 80), 159222#(<= ULTIMATE.start_main_~i~5 85), 159223#(<= ULTIMATE.start_main_~i~5 86), 159220#(<= ULTIMATE.start_main_~i~5 83), 159221#(<= ULTIMATE.start_main_~i~5 84), 159226#(<= ULTIMATE.start_main_~i~5 89), 159227#(<= ULTIMATE.start_main_~i~5 90), 159224#(<= ULTIMATE.start_main_~i~5 87), 159225#(<= ULTIMATE.start_main_~i~5 88), 159230#(<= ULTIMATE.start_main_~i~5 93), 159231#(<= ULTIMATE.start_main_~j~5 93), 159228#(<= ULTIMATE.start_main_~i~5 91), 159229#(<= ULTIMATE.start_main_~i~5 92)] [2018-07-23 13:42:52,297 INFO L134 CoverageAnalysis]: Checked inductivity of 13113 backedges. 8742 proven. 4371 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:52,298 INFO L450 AbstractCegarLoop]: Interpolant automaton has 190 states [2018-07-23 13:42:52,299 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 190 interpolants. [2018-07-23 13:42:52,300 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9119, Invalid=26791, Unknown=0, NotChecked=0, Total=35910 [2018-07-23 13:42:52,300 INFO L87 Difference]: Start difference. First operand 285 states and 286 transitions. Second operand 190 states. [2018-07-23 13:42:54,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:42:54,436 INFO L93 Difference]: Finished difference Result 477 states and 479 transitions. [2018-07-23 13:42:54,436 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 190 states. [2018-07-23 13:42:54,436 INFO L78 Accepts]: Start accepts. Automaton has 190 states. Word has length 284 [2018-07-23 13:42:54,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:42:54,436 INFO L225 Difference]: With dead ends: 477 [2018-07-23 13:42:54,436 INFO L226 Difference]: Without dead ends: 286 [2018-07-23 13:42:54,438 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 282 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13020 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=18237, Invalid=62135, Unknown=0, NotChecked=0, Total=80372 [2018-07-23 13:42:54,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2018-07-23 13:42:54,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2018-07-23 13:42:54,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2018-07-23 13:42:54,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 287 transitions. [2018-07-23 13:42:54,470 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 287 transitions. Word has length 284 [2018-07-23 13:42:54,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:42:54,470 INFO L471 AbstractCegarLoop]: Abstraction has 286 states and 287 transitions. [2018-07-23 13:42:54,470 INFO L472 AbstractCegarLoop]: Interpolant automaton has 190 states. [2018-07-23 13:42:54,470 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 287 transitions. [2018-07-23 13:42:54,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2018-07-23 13:42:54,471 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:42:54,471 INFO L357 BasicCegarLoop]: trace histogram [94, 94, 93, 1, 1, 1, 1] [2018-07-23 13:42:54,471 INFO L414 AbstractCegarLoop]: === Iteration 188 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:42:54,471 INFO L82 PathProgramCache]: Analyzing trace with hash 1536915683, now seen corresponding path program 186 times [2018-07-23 13:42:54,472 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:42:54,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:42:54,923 INFO L134 CoverageAnalysis]: Checked inductivity of 13207 backedges. 4465 proven. 8742 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:54,924 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:42:54,924 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [97] total 97 [2018-07-23 13:42:54,924 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:42:54,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:54,924 INFO L185 omatonBuilderFactory]: Interpolants [161039#true, 161042#(<= 1 ULTIMATE.start_main_~k~5), 161043#(<= 2 ULTIMATE.start_main_~k~5), 161040#false, 161041#(<= 0 ULTIMATE.start_main_~k~5), 161046#(<= 5 ULTIMATE.start_main_~k~5), 161047#(<= 6 ULTIMATE.start_main_~k~5), 161044#(<= 3 ULTIMATE.start_main_~k~5), 161045#(<= 4 ULTIMATE.start_main_~k~5), 161050#(<= 9 ULTIMATE.start_main_~k~5), 161051#(<= 10 ULTIMATE.start_main_~k~5), 161048#(<= 7 ULTIMATE.start_main_~k~5), 161049#(<= 8 ULTIMATE.start_main_~k~5), 161054#(<= 13 ULTIMATE.start_main_~k~5), 161055#(<= 14 ULTIMATE.start_main_~k~5), 161052#(<= 11 ULTIMATE.start_main_~k~5), 161053#(<= 12 ULTIMATE.start_main_~k~5), 161058#(<= 17 ULTIMATE.start_main_~k~5), 161059#(<= 18 ULTIMATE.start_main_~k~5), 161056#(<= 15 ULTIMATE.start_main_~k~5), 161057#(<= 16 ULTIMATE.start_main_~k~5), 161062#(<= 21 ULTIMATE.start_main_~k~5), 161063#(<= 22 ULTIMATE.start_main_~k~5), 161060#(<= 19 ULTIMATE.start_main_~k~5), 161061#(<= 20 ULTIMATE.start_main_~k~5), 161066#(<= 25 ULTIMATE.start_main_~k~5), 161067#(<= 26 ULTIMATE.start_main_~k~5), 161064#(<= 23 ULTIMATE.start_main_~k~5), 161065#(<= 24 ULTIMATE.start_main_~k~5), 161070#(<= 29 ULTIMATE.start_main_~k~5), 161071#(<= 30 ULTIMATE.start_main_~k~5), 161068#(<= 27 ULTIMATE.start_main_~k~5), 161069#(<= 28 ULTIMATE.start_main_~k~5), 161074#(<= 33 ULTIMATE.start_main_~k~5), 161075#(<= 34 ULTIMATE.start_main_~k~5), 161072#(<= 31 ULTIMATE.start_main_~k~5), 161073#(<= 32 ULTIMATE.start_main_~k~5), 161078#(<= 37 ULTIMATE.start_main_~k~5), 161079#(<= 38 ULTIMATE.start_main_~k~5), 161076#(<= 35 ULTIMATE.start_main_~k~5), 161077#(<= 36 ULTIMATE.start_main_~k~5), 161082#(<= 41 ULTIMATE.start_main_~k~5), 161083#(<= 42 ULTIMATE.start_main_~k~5), 161080#(<= 39 ULTIMATE.start_main_~k~5), 161081#(<= 40 ULTIMATE.start_main_~k~5), 161086#(<= 45 ULTIMATE.start_main_~k~5), 161087#(<= 46 ULTIMATE.start_main_~k~5), 161084#(<= 43 ULTIMATE.start_main_~k~5), 161085#(<= 44 ULTIMATE.start_main_~k~5), 161090#(<= 49 ULTIMATE.start_main_~k~5), 161091#(<= 50 ULTIMATE.start_main_~k~5), 161088#(<= 47 ULTIMATE.start_main_~k~5), 161089#(<= 48 ULTIMATE.start_main_~k~5), 161094#(<= 53 ULTIMATE.start_main_~k~5), 161095#(<= 54 ULTIMATE.start_main_~k~5), 161092#(<= 51 ULTIMATE.start_main_~k~5), 161093#(<= 52 ULTIMATE.start_main_~k~5), 161098#(<= 57 ULTIMATE.start_main_~k~5), 161099#(<= 58 ULTIMATE.start_main_~k~5), 161096#(<= 55 ULTIMATE.start_main_~k~5), 161097#(<= 56 ULTIMATE.start_main_~k~5), 161102#(<= 61 ULTIMATE.start_main_~k~5), 161103#(<= 62 ULTIMATE.start_main_~k~5), 161100#(<= 59 ULTIMATE.start_main_~k~5), 161101#(<= 60 ULTIMATE.start_main_~k~5), 161106#(<= 65 ULTIMATE.start_main_~k~5), 161107#(<= 66 ULTIMATE.start_main_~k~5), 161104#(<= 63 ULTIMATE.start_main_~k~5), 161105#(<= 64 ULTIMATE.start_main_~k~5), 161110#(<= 69 ULTIMATE.start_main_~k~5), 161111#(<= 70 ULTIMATE.start_main_~k~5), 161108#(<= 67 ULTIMATE.start_main_~k~5), 161109#(<= 68 ULTIMATE.start_main_~k~5), 161114#(<= 73 ULTIMATE.start_main_~k~5), 161115#(<= 74 ULTIMATE.start_main_~k~5), 161112#(<= 71 ULTIMATE.start_main_~k~5), 161113#(<= 72 ULTIMATE.start_main_~k~5), 161118#(<= 77 ULTIMATE.start_main_~k~5), 161119#(<= 78 ULTIMATE.start_main_~k~5), 161116#(<= 75 ULTIMATE.start_main_~k~5), 161117#(<= 76 ULTIMATE.start_main_~k~5), 161122#(<= 81 ULTIMATE.start_main_~k~5), 161123#(<= 82 ULTIMATE.start_main_~k~5), 161120#(<= 79 ULTIMATE.start_main_~k~5), 161121#(<= 80 ULTIMATE.start_main_~k~5), 161126#(<= 85 ULTIMATE.start_main_~k~5), 161127#(<= 86 ULTIMATE.start_main_~k~5), 161124#(<= 83 ULTIMATE.start_main_~k~5), 161125#(<= 84 ULTIMATE.start_main_~k~5), 161130#(<= 89 ULTIMATE.start_main_~k~5), 161131#(<= 90 ULTIMATE.start_main_~k~5), 161128#(<= 87 ULTIMATE.start_main_~k~5), 161129#(<= 88 ULTIMATE.start_main_~k~5), 161134#(<= 93 ULTIMATE.start_main_~k~5), 161135#(<= 94 ULTIMATE.start_main_~k~5), 161132#(<= 91 ULTIMATE.start_main_~k~5), 161133#(<= 92 ULTIMATE.start_main_~k~5), 161136#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond)] [2018-07-23 13:42:54,925 INFO L134 CoverageAnalysis]: Checked inductivity of 13207 backedges. 4465 proven. 8742 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:54,925 INFO L450 AbstractCegarLoop]: Interpolant automaton has 98 states [2018-07-23 13:42:54,925 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2018-07-23 13:42:54,926 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4658, Invalid=4848, Unknown=0, NotChecked=0, Total=9506 [2018-07-23 13:42:54,926 INFO L87 Difference]: Start difference. First operand 286 states and 287 transitions. Second operand 98 states. [2018-07-23 13:42:55,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:42:55,285 INFO L93 Difference]: Finished difference Result 294 states and 295 transitions. [2018-07-23 13:42:55,285 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2018-07-23 13:42:55,285 INFO L78 Accepts]: Start accepts. Automaton has 98 states. Word has length 285 [2018-07-23 13:42:55,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:42:55,285 INFO L225 Difference]: With dead ends: 294 [2018-07-23 13:42:55,285 INFO L226 Difference]: Without dead ends: 292 [2018-07-23 13:42:55,287 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 191 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8930 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13968, Invalid=23088, Unknown=0, NotChecked=0, Total=37056 [2018-07-23 13:42:55,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2018-07-23 13:42:55,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 288. [2018-07-23 13:42:55,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 288 states. [2018-07-23 13:42:55,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 289 transitions. [2018-07-23 13:42:55,321 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 289 transitions. Word has length 285 [2018-07-23 13:42:55,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:42:55,321 INFO L471 AbstractCegarLoop]: Abstraction has 288 states and 289 transitions. [2018-07-23 13:42:55,321 INFO L472 AbstractCegarLoop]: Interpolant automaton has 98 states. [2018-07-23 13:42:55,321 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 289 transitions. [2018-07-23 13:42:55,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2018-07-23 13:42:55,322 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:42:55,322 INFO L357 BasicCegarLoop]: trace histogram [95, 94, 94, 1, 1, 1, 1] [2018-07-23 13:42:55,322 INFO L414 AbstractCegarLoop]: === Iteration 189 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:42:55,322 INFO L82 PathProgramCache]: Analyzing trace with hash -492712437, now seen corresponding path program 187 times [2018-07-23 13:42:55,322 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:42:55,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:42:56,105 INFO L134 CoverageAnalysis]: Checked inductivity of 13395 backedges. 8930 proven. 4465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:56,105 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:42:56,105 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [191] total 191 [2018-07-23 13:42:56,105 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:42:56,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:56,106 INFO L185 omatonBuilderFactory]: Interpolants [162562#(<= ULTIMATE.start_main_~i~5 69), 162563#(<= ULTIMATE.start_main_~i~5 70), 162560#(<= ULTIMATE.start_main_~i~5 67), 162561#(<= ULTIMATE.start_main_~i~5 68), 162566#(<= ULTIMATE.start_main_~i~5 73), 162567#(<= ULTIMATE.start_main_~i~5 74), 162564#(<= ULTIMATE.start_main_~i~5 71), 162565#(<= ULTIMATE.start_main_~i~5 72), 162570#(<= ULTIMATE.start_main_~i~5 77), 162571#(<= ULTIMATE.start_main_~i~5 78), 162568#(<= ULTIMATE.start_main_~i~5 75), 162569#(<= ULTIMATE.start_main_~i~5 76), 162574#(<= ULTIMATE.start_main_~i~5 81), 162575#(<= ULTIMATE.start_main_~i~5 82), 162572#(<= ULTIMATE.start_main_~i~5 79), 162573#(<= ULTIMATE.start_main_~i~5 80), 162578#(<= ULTIMATE.start_main_~i~5 85), 162579#(<= ULTIMATE.start_main_~i~5 86), 162576#(<= ULTIMATE.start_main_~i~5 83), 162577#(<= ULTIMATE.start_main_~i~5 84), 162582#(<= ULTIMATE.start_main_~i~5 89), 162583#(<= ULTIMATE.start_main_~i~5 90), 162580#(<= ULTIMATE.start_main_~i~5 87), 162581#(<= ULTIMATE.start_main_~i~5 88), 162586#(<= ULTIMATE.start_main_~i~5 93), 162587#(<= ULTIMATE.start_main_~i~5 94), 162584#(<= ULTIMATE.start_main_~i~5 91), 162585#(<= ULTIMATE.start_main_~i~5 92), 162590#(<= ULTIMATE.start_main_~j~5 92), 162591#(<= ULTIMATE.start_main_~j~5 91), 162588#(<= ULTIMATE.start_main_~j~5 94), 162589#(<= ULTIMATE.start_main_~j~5 93), 162594#(<= ULTIMATE.start_main_~j~5 88), 162595#(<= ULTIMATE.start_main_~j~5 87), 162592#(<= ULTIMATE.start_main_~j~5 90), 162593#(<= ULTIMATE.start_main_~j~5 89), 162598#(<= ULTIMATE.start_main_~j~5 84), 162599#(<= ULTIMATE.start_main_~j~5 83), 162596#(<= ULTIMATE.start_main_~j~5 86), 162597#(<= ULTIMATE.start_main_~j~5 85), 162602#(<= ULTIMATE.start_main_~j~5 80), 162603#(<= ULTIMATE.start_main_~j~5 79), 162600#(<= ULTIMATE.start_main_~j~5 82), 162601#(<= ULTIMATE.start_main_~j~5 81), 162606#(<= ULTIMATE.start_main_~j~5 76), 162607#(<= ULTIMATE.start_main_~j~5 75), 162604#(<= ULTIMATE.start_main_~j~5 78), 162605#(<= ULTIMATE.start_main_~j~5 77), 162610#(<= ULTIMATE.start_main_~j~5 72), 162611#(<= ULTIMATE.start_main_~j~5 71), 162608#(<= ULTIMATE.start_main_~j~5 74), 162609#(<= ULTIMATE.start_main_~j~5 73), 162614#(<= ULTIMATE.start_main_~j~5 68), 162615#(<= ULTIMATE.start_main_~j~5 67), 162612#(<= ULTIMATE.start_main_~j~5 70), 162613#(<= ULTIMATE.start_main_~j~5 69), 162618#(<= ULTIMATE.start_main_~j~5 64), 162619#(<= ULTIMATE.start_main_~j~5 63), 162616#(<= ULTIMATE.start_main_~j~5 66), 162617#(<= ULTIMATE.start_main_~j~5 65), 162622#(<= ULTIMATE.start_main_~j~5 60), 162623#(<= ULTIMATE.start_main_~j~5 59), 162620#(<= ULTIMATE.start_main_~j~5 62), 162621#(<= ULTIMATE.start_main_~j~5 61), 162626#(<= ULTIMATE.start_main_~j~5 56), 162627#(<= ULTIMATE.start_main_~j~5 55), 162624#(<= ULTIMATE.start_main_~j~5 58), 162625#(<= ULTIMATE.start_main_~j~5 57), 162630#(<= ULTIMATE.start_main_~j~5 52), 162631#(<= ULTIMATE.start_main_~j~5 51), 162628#(<= ULTIMATE.start_main_~j~5 54), 162629#(<= ULTIMATE.start_main_~j~5 53), 162634#(<= ULTIMATE.start_main_~j~5 48), 162635#(<= ULTIMATE.start_main_~j~5 47), 162632#(<= ULTIMATE.start_main_~j~5 50), 162633#(<= ULTIMATE.start_main_~j~5 49), 162638#(<= ULTIMATE.start_main_~j~5 44), 162639#(<= ULTIMATE.start_main_~j~5 43), 162636#(<= ULTIMATE.start_main_~j~5 46), 162637#(<= ULTIMATE.start_main_~j~5 45), 162642#(<= ULTIMATE.start_main_~j~5 40), 162643#(<= ULTIMATE.start_main_~j~5 39), 162640#(<= ULTIMATE.start_main_~j~5 42), 162641#(<= ULTIMATE.start_main_~j~5 41), 162646#(<= ULTIMATE.start_main_~j~5 36), 162647#(<= ULTIMATE.start_main_~j~5 35), 162644#(<= ULTIMATE.start_main_~j~5 38), 162645#(<= ULTIMATE.start_main_~j~5 37), 162650#(<= ULTIMATE.start_main_~j~5 32), 162651#(<= ULTIMATE.start_main_~j~5 31), 162648#(<= ULTIMATE.start_main_~j~5 34), 162649#(<= ULTIMATE.start_main_~j~5 33), 162654#(<= ULTIMATE.start_main_~j~5 28), 162655#(<= ULTIMATE.start_main_~j~5 27), 162652#(<= ULTIMATE.start_main_~j~5 30), 162653#(<= ULTIMATE.start_main_~j~5 29), 162658#(<= ULTIMATE.start_main_~j~5 24), 162659#(<= ULTIMATE.start_main_~j~5 23), 162656#(<= ULTIMATE.start_main_~j~5 26), 162657#(<= ULTIMATE.start_main_~j~5 25), 162662#(<= ULTIMATE.start_main_~j~5 20), 162663#(<= ULTIMATE.start_main_~j~5 19), 162660#(<= ULTIMATE.start_main_~j~5 22), 162661#(<= ULTIMATE.start_main_~j~5 21), 162666#(<= ULTIMATE.start_main_~j~5 16), 162667#(<= ULTIMATE.start_main_~j~5 15), 162664#(<= ULTIMATE.start_main_~j~5 18), 162665#(<= ULTIMATE.start_main_~j~5 17), 162670#(<= ULTIMATE.start_main_~j~5 12), 162671#(<= ULTIMATE.start_main_~j~5 11), 162668#(<= ULTIMATE.start_main_~j~5 14), 162669#(<= ULTIMATE.start_main_~j~5 13), 162674#(<= ULTIMATE.start_main_~j~5 8), 162675#(<= ULTIMATE.start_main_~j~5 7), 162672#(<= ULTIMATE.start_main_~j~5 10), 162673#(<= ULTIMATE.start_main_~j~5 9), 162678#(<= ULTIMATE.start_main_~j~5 4), 162679#(<= ULTIMATE.start_main_~j~5 3), 162676#(<= ULTIMATE.start_main_~j~5 6), 162677#(<= ULTIMATE.start_main_~j~5 5), 162682#(<= ULTIMATE.start_main_~j~5 0), 162680#(<= ULTIMATE.start_main_~j~5 2), 162681#(<= ULTIMATE.start_main_~j~5 1), 162491#true, 162494#(<= ULTIMATE.start_main_~i~5 1), 162495#(<= ULTIMATE.start_main_~i~5 2), 162492#false, 162493#(<= ULTIMATE.start_main_~i~5 0), 162498#(<= ULTIMATE.start_main_~i~5 5), 162499#(<= ULTIMATE.start_main_~i~5 6), 162496#(<= ULTIMATE.start_main_~i~5 3), 162497#(<= ULTIMATE.start_main_~i~5 4), 162502#(<= ULTIMATE.start_main_~i~5 9), 162503#(<= ULTIMATE.start_main_~i~5 10), 162500#(<= ULTIMATE.start_main_~i~5 7), 162501#(<= ULTIMATE.start_main_~i~5 8), 162506#(<= ULTIMATE.start_main_~i~5 13), 162507#(<= ULTIMATE.start_main_~i~5 14), 162504#(<= ULTIMATE.start_main_~i~5 11), 162505#(<= ULTIMATE.start_main_~i~5 12), 162510#(<= ULTIMATE.start_main_~i~5 17), 162511#(<= ULTIMATE.start_main_~i~5 18), 162508#(<= ULTIMATE.start_main_~i~5 15), 162509#(<= ULTIMATE.start_main_~i~5 16), 162514#(<= ULTIMATE.start_main_~i~5 21), 162515#(<= ULTIMATE.start_main_~i~5 22), 162512#(<= ULTIMATE.start_main_~i~5 19), 162513#(<= ULTIMATE.start_main_~i~5 20), 162518#(<= ULTIMATE.start_main_~i~5 25), 162519#(<= ULTIMATE.start_main_~i~5 26), 162516#(<= ULTIMATE.start_main_~i~5 23), 162517#(<= ULTIMATE.start_main_~i~5 24), 162522#(<= ULTIMATE.start_main_~i~5 29), 162523#(<= ULTIMATE.start_main_~i~5 30), 162520#(<= ULTIMATE.start_main_~i~5 27), 162521#(<= ULTIMATE.start_main_~i~5 28), 162526#(<= ULTIMATE.start_main_~i~5 33), 162527#(<= ULTIMATE.start_main_~i~5 34), 162524#(<= ULTIMATE.start_main_~i~5 31), 162525#(<= ULTIMATE.start_main_~i~5 32), 162530#(<= ULTIMATE.start_main_~i~5 37), 162531#(<= ULTIMATE.start_main_~i~5 38), 162528#(<= ULTIMATE.start_main_~i~5 35), 162529#(<= ULTIMATE.start_main_~i~5 36), 162534#(<= ULTIMATE.start_main_~i~5 41), 162535#(<= ULTIMATE.start_main_~i~5 42), 162532#(<= ULTIMATE.start_main_~i~5 39), 162533#(<= ULTIMATE.start_main_~i~5 40), 162538#(<= ULTIMATE.start_main_~i~5 45), 162539#(<= ULTIMATE.start_main_~i~5 46), 162536#(<= ULTIMATE.start_main_~i~5 43), 162537#(<= ULTIMATE.start_main_~i~5 44), 162542#(<= ULTIMATE.start_main_~i~5 49), 162543#(<= ULTIMATE.start_main_~i~5 50), 162540#(<= ULTIMATE.start_main_~i~5 47), 162541#(<= ULTIMATE.start_main_~i~5 48), 162546#(<= ULTIMATE.start_main_~i~5 53), 162547#(<= ULTIMATE.start_main_~i~5 54), 162544#(<= ULTIMATE.start_main_~i~5 51), 162545#(<= ULTIMATE.start_main_~i~5 52), 162550#(<= ULTIMATE.start_main_~i~5 57), 162551#(<= ULTIMATE.start_main_~i~5 58), 162548#(<= ULTIMATE.start_main_~i~5 55), 162549#(<= ULTIMATE.start_main_~i~5 56), 162554#(<= ULTIMATE.start_main_~i~5 61), 162555#(<= ULTIMATE.start_main_~i~5 62), 162552#(<= ULTIMATE.start_main_~i~5 59), 162553#(<= ULTIMATE.start_main_~i~5 60), 162558#(<= ULTIMATE.start_main_~i~5 65), 162559#(<= ULTIMATE.start_main_~i~5 66), 162556#(<= ULTIMATE.start_main_~i~5 63), 162557#(<= ULTIMATE.start_main_~i~5 64)] [2018-07-23 13:42:56,107 INFO L134 CoverageAnalysis]: Checked inductivity of 13395 backedges. 8930 proven. 4465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:56,107 INFO L450 AbstractCegarLoop]: Interpolant automaton has 192 states [2018-07-23 13:42:56,108 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2018-07-23 13:42:56,110 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9311, Invalid=27361, Unknown=0, NotChecked=0, Total=36672 [2018-07-23 13:42:56,110 INFO L87 Difference]: Start difference. First operand 288 states and 289 transitions. Second operand 192 states. [2018-07-23 13:42:57,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:42:57,291 INFO L93 Difference]: Finished difference Result 482 states and 484 transitions. [2018-07-23 13:42:57,291 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2018-07-23 13:42:57,291 INFO L78 Accepts]: Start accepts. Automaton has 192 states. Word has length 287 [2018-07-23 13:42:57,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:42:57,292 INFO L225 Difference]: With dead ends: 482 [2018-07-23 13:42:57,292 INFO L226 Difference]: Without dead ends: 289 [2018-07-23 13:42:57,296 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 285 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13301 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=18621, Invalid=63461, Unknown=0, NotChecked=0, Total=82082 [2018-07-23 13:42:57,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2018-07-23 13:42:57,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 289. [2018-07-23 13:42:57,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 289 states. [2018-07-23 13:42:57,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 290 transitions. [2018-07-23 13:42:57,330 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 290 transitions. Word has length 287 [2018-07-23 13:42:57,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:42:57,330 INFO L471 AbstractCegarLoop]: Abstraction has 289 states and 290 transitions. [2018-07-23 13:42:57,330 INFO L472 AbstractCegarLoop]: Interpolant automaton has 192 states. [2018-07-23 13:42:57,330 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 290 transitions. [2018-07-23 13:42:57,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2018-07-23 13:42:57,331 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:42:57,331 INFO L357 BasicCegarLoop]: trace histogram [95, 95, 94, 1, 1, 1, 1] [2018-07-23 13:42:57,331 INFO L414 AbstractCegarLoop]: === Iteration 190 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:42:57,331 INFO L82 PathProgramCache]: Analyzing trace with hash 349852530, now seen corresponding path program 188 times [2018-07-23 13:42:57,331 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:42:57,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:42:57,867 INFO L134 CoverageAnalysis]: Checked inductivity of 13490 backedges. 4560 proven. 8930 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:57,868 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:42:57,868 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [98] total 98 [2018-07-23 13:42:57,868 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:42:57,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:57,869 INFO L185 omatonBuilderFactory]: Interpolants [164415#true, 164418#(<= 1 ULTIMATE.start_main_~k~5), 164419#(<= 2 ULTIMATE.start_main_~k~5), 164416#false, 164417#(<= 0 ULTIMATE.start_main_~k~5), 164422#(<= 5 ULTIMATE.start_main_~k~5), 164423#(<= 6 ULTIMATE.start_main_~k~5), 164420#(<= 3 ULTIMATE.start_main_~k~5), 164421#(<= 4 ULTIMATE.start_main_~k~5), 164426#(<= 9 ULTIMATE.start_main_~k~5), 164427#(<= 10 ULTIMATE.start_main_~k~5), 164424#(<= 7 ULTIMATE.start_main_~k~5), 164425#(<= 8 ULTIMATE.start_main_~k~5), 164430#(<= 13 ULTIMATE.start_main_~k~5), 164431#(<= 14 ULTIMATE.start_main_~k~5), 164428#(<= 11 ULTIMATE.start_main_~k~5), 164429#(<= 12 ULTIMATE.start_main_~k~5), 164434#(<= 17 ULTIMATE.start_main_~k~5), 164435#(<= 18 ULTIMATE.start_main_~k~5), 164432#(<= 15 ULTIMATE.start_main_~k~5), 164433#(<= 16 ULTIMATE.start_main_~k~5), 164438#(<= 21 ULTIMATE.start_main_~k~5), 164439#(<= 22 ULTIMATE.start_main_~k~5), 164436#(<= 19 ULTIMATE.start_main_~k~5), 164437#(<= 20 ULTIMATE.start_main_~k~5), 164442#(<= 25 ULTIMATE.start_main_~k~5), 164443#(<= 26 ULTIMATE.start_main_~k~5), 164440#(<= 23 ULTIMATE.start_main_~k~5), 164441#(<= 24 ULTIMATE.start_main_~k~5), 164446#(<= 29 ULTIMATE.start_main_~k~5), 164447#(<= 30 ULTIMATE.start_main_~k~5), 164444#(<= 27 ULTIMATE.start_main_~k~5), 164445#(<= 28 ULTIMATE.start_main_~k~5), 164450#(<= 33 ULTIMATE.start_main_~k~5), 164451#(<= 34 ULTIMATE.start_main_~k~5), 164448#(<= 31 ULTIMATE.start_main_~k~5), 164449#(<= 32 ULTIMATE.start_main_~k~5), 164454#(<= 37 ULTIMATE.start_main_~k~5), 164455#(<= 38 ULTIMATE.start_main_~k~5), 164452#(<= 35 ULTIMATE.start_main_~k~5), 164453#(<= 36 ULTIMATE.start_main_~k~5), 164458#(<= 41 ULTIMATE.start_main_~k~5), 164459#(<= 42 ULTIMATE.start_main_~k~5), 164456#(<= 39 ULTIMATE.start_main_~k~5), 164457#(<= 40 ULTIMATE.start_main_~k~5), 164462#(<= 45 ULTIMATE.start_main_~k~5), 164463#(<= 46 ULTIMATE.start_main_~k~5), 164460#(<= 43 ULTIMATE.start_main_~k~5), 164461#(<= 44 ULTIMATE.start_main_~k~5), 164466#(<= 49 ULTIMATE.start_main_~k~5), 164467#(<= 50 ULTIMATE.start_main_~k~5), 164464#(<= 47 ULTIMATE.start_main_~k~5), 164465#(<= 48 ULTIMATE.start_main_~k~5), 164470#(<= 53 ULTIMATE.start_main_~k~5), 164471#(<= 54 ULTIMATE.start_main_~k~5), 164468#(<= 51 ULTIMATE.start_main_~k~5), 164469#(<= 52 ULTIMATE.start_main_~k~5), 164474#(<= 57 ULTIMATE.start_main_~k~5), 164475#(<= 58 ULTIMATE.start_main_~k~5), 164472#(<= 55 ULTIMATE.start_main_~k~5), 164473#(<= 56 ULTIMATE.start_main_~k~5), 164478#(<= 61 ULTIMATE.start_main_~k~5), 164479#(<= 62 ULTIMATE.start_main_~k~5), 164476#(<= 59 ULTIMATE.start_main_~k~5), 164477#(<= 60 ULTIMATE.start_main_~k~5), 164482#(<= 65 ULTIMATE.start_main_~k~5), 164483#(<= 66 ULTIMATE.start_main_~k~5), 164480#(<= 63 ULTIMATE.start_main_~k~5), 164481#(<= 64 ULTIMATE.start_main_~k~5), 164486#(<= 69 ULTIMATE.start_main_~k~5), 164487#(<= 70 ULTIMATE.start_main_~k~5), 164484#(<= 67 ULTIMATE.start_main_~k~5), 164485#(<= 68 ULTIMATE.start_main_~k~5), 164490#(<= 73 ULTIMATE.start_main_~k~5), 164491#(<= 74 ULTIMATE.start_main_~k~5), 164488#(<= 71 ULTIMATE.start_main_~k~5), 164489#(<= 72 ULTIMATE.start_main_~k~5), 164494#(<= 77 ULTIMATE.start_main_~k~5), 164495#(<= 78 ULTIMATE.start_main_~k~5), 164492#(<= 75 ULTIMATE.start_main_~k~5), 164493#(<= 76 ULTIMATE.start_main_~k~5), 164498#(<= 81 ULTIMATE.start_main_~k~5), 164499#(<= 82 ULTIMATE.start_main_~k~5), 164496#(<= 79 ULTIMATE.start_main_~k~5), 164497#(<= 80 ULTIMATE.start_main_~k~5), 164502#(<= 85 ULTIMATE.start_main_~k~5), 164503#(<= 86 ULTIMATE.start_main_~k~5), 164500#(<= 83 ULTIMATE.start_main_~k~5), 164501#(<= 84 ULTIMATE.start_main_~k~5), 164506#(<= 89 ULTIMATE.start_main_~k~5), 164507#(<= 90 ULTIMATE.start_main_~k~5), 164504#(<= 87 ULTIMATE.start_main_~k~5), 164505#(<= 88 ULTIMATE.start_main_~k~5), 164510#(<= 93 ULTIMATE.start_main_~k~5), 164511#(<= 94 ULTIMATE.start_main_~k~5), 164508#(<= 91 ULTIMATE.start_main_~k~5), 164509#(<= 92 ULTIMATE.start_main_~k~5), 164512#(<= 95 ULTIMATE.start_main_~k~5), 164513#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond)] [2018-07-23 13:42:57,869 INFO L134 CoverageAnalysis]: Checked inductivity of 13490 backedges. 4560 proven. 8930 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:57,869 INFO L450 AbstractCegarLoop]: Interpolant automaton has 99 states [2018-07-23 13:42:57,870 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2018-07-23 13:42:57,870 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4755, Invalid=4947, Unknown=0, NotChecked=0, Total=9702 [2018-07-23 13:42:57,870 INFO L87 Difference]: Start difference. First operand 289 states and 290 transitions. Second operand 99 states. [2018-07-23 13:42:58,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:42:58,219 INFO L93 Difference]: Finished difference Result 297 states and 298 transitions. [2018-07-23 13:42:58,219 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 194 states. [2018-07-23 13:42:58,219 INFO L78 Accepts]: Start accepts. Automaton has 99 states. Word has length 288 [2018-07-23 13:42:58,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:42:58,220 INFO L225 Difference]: With dead ends: 297 [2018-07-23 13:42:58,220 INFO L226 Difference]: Without dead ends: 295 [2018-07-23 13:42:58,222 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 193 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9120 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=14259, Invalid=23571, Unknown=0, NotChecked=0, Total=37830 [2018-07-23 13:42:58,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2018-07-23 13:42:58,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 291. [2018-07-23 13:42:58,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 291 states. [2018-07-23 13:42:58,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 292 transitions. [2018-07-23 13:42:58,259 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 292 transitions. Word has length 288 [2018-07-23 13:42:58,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:42:58,259 INFO L471 AbstractCegarLoop]: Abstraction has 291 states and 292 transitions. [2018-07-23 13:42:58,259 INFO L472 AbstractCegarLoop]: Interpolant automaton has 99 states. [2018-07-23 13:42:58,259 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 292 transitions. [2018-07-23 13:42:58,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2018-07-23 13:42:58,260 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:42:58,260 INFO L357 BasicCegarLoop]: trace histogram [96, 95, 95, 1, 1, 1, 1] [2018-07-23 13:42:58,260 INFO L414 AbstractCegarLoop]: === Iteration 191 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:42:58,260 INFO L82 PathProgramCache]: Analyzing trace with hash 1200898266, now seen corresponding path program 189 times [2018-07-23 13:42:58,261 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:42:58,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:42:59,033 INFO L134 CoverageAnalysis]: Checked inductivity of 13680 backedges. 9120 proven. 4560 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:59,033 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:42:59,033 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [193] total 193 [2018-07-23 13:42:59,033 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:42:59,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:59,034 INFO L185 omatonBuilderFactory]: Interpolants [165890#(<= ULTIMATE.start_main_~i~5 6), 165891#(<= ULTIMATE.start_main_~i~5 7), 165888#(<= ULTIMATE.start_main_~i~5 4), 165889#(<= ULTIMATE.start_main_~i~5 5), 165894#(<= ULTIMATE.start_main_~i~5 10), 165895#(<= ULTIMATE.start_main_~i~5 11), 165892#(<= ULTIMATE.start_main_~i~5 8), 165893#(<= ULTIMATE.start_main_~i~5 9), 165898#(<= ULTIMATE.start_main_~i~5 14), 165899#(<= ULTIMATE.start_main_~i~5 15), 165896#(<= ULTIMATE.start_main_~i~5 12), 165897#(<= ULTIMATE.start_main_~i~5 13), 165902#(<= ULTIMATE.start_main_~i~5 18), 165903#(<= ULTIMATE.start_main_~i~5 19), 165900#(<= ULTIMATE.start_main_~i~5 16), 165901#(<= ULTIMATE.start_main_~i~5 17), 165906#(<= ULTIMATE.start_main_~i~5 22), 165907#(<= ULTIMATE.start_main_~i~5 23), 165904#(<= ULTIMATE.start_main_~i~5 20), 165905#(<= ULTIMATE.start_main_~i~5 21), 165910#(<= ULTIMATE.start_main_~i~5 26), 165911#(<= ULTIMATE.start_main_~i~5 27), 165908#(<= ULTIMATE.start_main_~i~5 24), 165909#(<= ULTIMATE.start_main_~i~5 25), 165914#(<= ULTIMATE.start_main_~i~5 30), 165915#(<= ULTIMATE.start_main_~i~5 31), 165912#(<= ULTIMATE.start_main_~i~5 28), 165913#(<= ULTIMATE.start_main_~i~5 29), 165918#(<= ULTIMATE.start_main_~i~5 34), 165919#(<= ULTIMATE.start_main_~i~5 35), 165916#(<= ULTIMATE.start_main_~i~5 32), 165917#(<= ULTIMATE.start_main_~i~5 33), 165922#(<= ULTIMATE.start_main_~i~5 38), 165923#(<= ULTIMATE.start_main_~i~5 39), 165920#(<= ULTIMATE.start_main_~i~5 36), 165921#(<= ULTIMATE.start_main_~i~5 37), 165926#(<= ULTIMATE.start_main_~i~5 42), 165927#(<= ULTIMATE.start_main_~i~5 43), 165924#(<= ULTIMATE.start_main_~i~5 40), 165925#(<= ULTIMATE.start_main_~i~5 41), 165930#(<= ULTIMATE.start_main_~i~5 46), 165931#(<= ULTIMATE.start_main_~i~5 47), 165928#(<= ULTIMATE.start_main_~i~5 44), 165929#(<= ULTIMATE.start_main_~i~5 45), 165934#(<= ULTIMATE.start_main_~i~5 50), 165935#(<= ULTIMATE.start_main_~i~5 51), 165932#(<= ULTIMATE.start_main_~i~5 48), 165933#(<= ULTIMATE.start_main_~i~5 49), 165938#(<= ULTIMATE.start_main_~i~5 54), 165939#(<= ULTIMATE.start_main_~i~5 55), 165936#(<= ULTIMATE.start_main_~i~5 52), 165937#(<= ULTIMATE.start_main_~i~5 53), 165942#(<= ULTIMATE.start_main_~i~5 58), 165943#(<= ULTIMATE.start_main_~i~5 59), 165940#(<= ULTIMATE.start_main_~i~5 56), 165941#(<= ULTIMATE.start_main_~i~5 57), 165946#(<= ULTIMATE.start_main_~i~5 62), 165947#(<= ULTIMATE.start_main_~i~5 63), 165944#(<= ULTIMATE.start_main_~i~5 60), 165945#(<= ULTIMATE.start_main_~i~5 61), 165950#(<= ULTIMATE.start_main_~i~5 66), 165951#(<= ULTIMATE.start_main_~i~5 67), 165948#(<= ULTIMATE.start_main_~i~5 64), 165949#(<= ULTIMATE.start_main_~i~5 65), 165954#(<= ULTIMATE.start_main_~i~5 70), 165955#(<= ULTIMATE.start_main_~i~5 71), 165952#(<= ULTIMATE.start_main_~i~5 68), 165953#(<= ULTIMATE.start_main_~i~5 69), 165958#(<= ULTIMATE.start_main_~i~5 74), 165959#(<= ULTIMATE.start_main_~i~5 75), 165956#(<= ULTIMATE.start_main_~i~5 72), 165957#(<= ULTIMATE.start_main_~i~5 73), 165962#(<= ULTIMATE.start_main_~i~5 78), 165963#(<= ULTIMATE.start_main_~i~5 79), 165960#(<= ULTIMATE.start_main_~i~5 76), 165961#(<= ULTIMATE.start_main_~i~5 77), 165966#(<= ULTIMATE.start_main_~i~5 82), 165967#(<= ULTIMATE.start_main_~i~5 83), 165964#(<= ULTIMATE.start_main_~i~5 80), 165965#(<= ULTIMATE.start_main_~i~5 81), 165970#(<= ULTIMATE.start_main_~i~5 86), 165971#(<= ULTIMATE.start_main_~i~5 87), 165968#(<= ULTIMATE.start_main_~i~5 84), 165969#(<= ULTIMATE.start_main_~i~5 85), 165974#(<= ULTIMATE.start_main_~i~5 90), 165975#(<= ULTIMATE.start_main_~i~5 91), 165972#(<= ULTIMATE.start_main_~i~5 88), 165973#(<= ULTIMATE.start_main_~i~5 89), 165978#(<= ULTIMATE.start_main_~i~5 94), 165979#(<= ULTIMATE.start_main_~i~5 95), 165976#(<= ULTIMATE.start_main_~i~5 92), 165977#(<= ULTIMATE.start_main_~i~5 93), 165982#(<= ULTIMATE.start_main_~j~5 93), 165983#(<= ULTIMATE.start_main_~j~5 92), 165980#(<= ULTIMATE.start_main_~j~5 95), 165981#(<= ULTIMATE.start_main_~j~5 94), 165986#(<= ULTIMATE.start_main_~j~5 89), 165987#(<= ULTIMATE.start_main_~j~5 88), 165984#(<= ULTIMATE.start_main_~j~5 91), 165985#(<= ULTIMATE.start_main_~j~5 90), 165990#(<= ULTIMATE.start_main_~j~5 85), 165991#(<= ULTIMATE.start_main_~j~5 84), 165988#(<= ULTIMATE.start_main_~j~5 87), 165989#(<= ULTIMATE.start_main_~j~5 86), 165994#(<= ULTIMATE.start_main_~j~5 81), 165995#(<= ULTIMATE.start_main_~j~5 80), 165992#(<= ULTIMATE.start_main_~j~5 83), 165993#(<= ULTIMATE.start_main_~j~5 82), 165998#(<= ULTIMATE.start_main_~j~5 77), 165999#(<= ULTIMATE.start_main_~j~5 76), 165996#(<= ULTIMATE.start_main_~j~5 79), 165997#(<= ULTIMATE.start_main_~j~5 78), 166002#(<= ULTIMATE.start_main_~j~5 73), 166003#(<= ULTIMATE.start_main_~j~5 72), 166000#(<= ULTIMATE.start_main_~j~5 75), 166001#(<= ULTIMATE.start_main_~j~5 74), 166006#(<= ULTIMATE.start_main_~j~5 69), 166007#(<= ULTIMATE.start_main_~j~5 68), 166004#(<= ULTIMATE.start_main_~j~5 71), 166005#(<= ULTIMATE.start_main_~j~5 70), 166010#(<= ULTIMATE.start_main_~j~5 65), 166011#(<= ULTIMATE.start_main_~j~5 64), 166008#(<= ULTIMATE.start_main_~j~5 67), 166009#(<= ULTIMATE.start_main_~j~5 66), 166014#(<= ULTIMATE.start_main_~j~5 61), 166015#(<= ULTIMATE.start_main_~j~5 60), 166012#(<= ULTIMATE.start_main_~j~5 63), 166013#(<= ULTIMATE.start_main_~j~5 62), 166018#(<= ULTIMATE.start_main_~j~5 57), 166019#(<= ULTIMATE.start_main_~j~5 56), 166016#(<= ULTIMATE.start_main_~j~5 59), 166017#(<= ULTIMATE.start_main_~j~5 58), 166022#(<= ULTIMATE.start_main_~j~5 53), 166023#(<= ULTIMATE.start_main_~j~5 52), 166020#(<= ULTIMATE.start_main_~j~5 55), 166021#(<= ULTIMATE.start_main_~j~5 54), 166026#(<= ULTIMATE.start_main_~j~5 49), 166027#(<= ULTIMATE.start_main_~j~5 48), 166024#(<= ULTIMATE.start_main_~j~5 51), 166025#(<= ULTIMATE.start_main_~j~5 50), 166030#(<= ULTIMATE.start_main_~j~5 45), 166031#(<= ULTIMATE.start_main_~j~5 44), 166028#(<= ULTIMATE.start_main_~j~5 47), 166029#(<= ULTIMATE.start_main_~j~5 46), 166034#(<= ULTIMATE.start_main_~j~5 41), 166035#(<= ULTIMATE.start_main_~j~5 40), 166032#(<= ULTIMATE.start_main_~j~5 43), 166033#(<= ULTIMATE.start_main_~j~5 42), 166038#(<= ULTIMATE.start_main_~j~5 37), 166039#(<= ULTIMATE.start_main_~j~5 36), 166036#(<= ULTIMATE.start_main_~j~5 39), 166037#(<= ULTIMATE.start_main_~j~5 38), 166042#(<= ULTIMATE.start_main_~j~5 33), 166043#(<= ULTIMATE.start_main_~j~5 32), 166040#(<= ULTIMATE.start_main_~j~5 35), 166041#(<= ULTIMATE.start_main_~j~5 34), 166046#(<= ULTIMATE.start_main_~j~5 29), 166047#(<= ULTIMATE.start_main_~j~5 28), 166044#(<= ULTIMATE.start_main_~j~5 31), 166045#(<= ULTIMATE.start_main_~j~5 30), 166050#(<= ULTIMATE.start_main_~j~5 25), 166051#(<= ULTIMATE.start_main_~j~5 24), 166048#(<= ULTIMATE.start_main_~j~5 27), 166049#(<= ULTIMATE.start_main_~j~5 26), 166054#(<= ULTIMATE.start_main_~j~5 21), 166055#(<= ULTIMATE.start_main_~j~5 20), 166052#(<= ULTIMATE.start_main_~j~5 23), 166053#(<= ULTIMATE.start_main_~j~5 22), 166058#(<= ULTIMATE.start_main_~j~5 17), 166059#(<= ULTIMATE.start_main_~j~5 16), 166056#(<= ULTIMATE.start_main_~j~5 19), 166057#(<= ULTIMATE.start_main_~j~5 18), 166062#(<= ULTIMATE.start_main_~j~5 13), 166063#(<= ULTIMATE.start_main_~j~5 12), 166060#(<= ULTIMATE.start_main_~j~5 15), 166061#(<= ULTIMATE.start_main_~j~5 14), 166066#(<= ULTIMATE.start_main_~j~5 9), 166067#(<= ULTIMATE.start_main_~j~5 8), 166064#(<= ULTIMATE.start_main_~j~5 11), 166065#(<= ULTIMATE.start_main_~j~5 10), 166070#(<= ULTIMATE.start_main_~j~5 5), 166071#(<= ULTIMATE.start_main_~j~5 4), 166068#(<= ULTIMATE.start_main_~j~5 7), 166069#(<= ULTIMATE.start_main_~j~5 6), 166074#(<= ULTIMATE.start_main_~j~5 1), 166075#(<= ULTIMATE.start_main_~j~5 0), 166072#(<= ULTIMATE.start_main_~j~5 3), 166073#(<= ULTIMATE.start_main_~j~5 2), 165882#true, 165883#false, 165886#(<= ULTIMATE.start_main_~i~5 2), 165887#(<= ULTIMATE.start_main_~i~5 3), 165884#(<= ULTIMATE.start_main_~i~5 0), 165885#(<= ULTIMATE.start_main_~i~5 1)] [2018-07-23 13:42:59,035 INFO L134 CoverageAnalysis]: Checked inductivity of 13680 backedges. 9120 proven. 4560 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:42:59,035 INFO L450 AbstractCegarLoop]: Interpolant automaton has 194 states [2018-07-23 13:42:59,036 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 194 interpolants. [2018-07-23 13:42:59,038 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9505, Invalid=27937, Unknown=0, NotChecked=0, Total=37442 [2018-07-23 13:42:59,038 INFO L87 Difference]: Start difference. First operand 291 states and 292 transitions. Second operand 194 states. [2018-07-23 13:43:01,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:43:01,092 INFO L93 Difference]: Finished difference Result 487 states and 489 transitions. [2018-07-23 13:43:01,092 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 194 states. [2018-07-23 13:43:01,092 INFO L78 Accepts]: Start accepts. Automaton has 194 states. Word has length 290 [2018-07-23 13:43:01,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:43:01,093 INFO L225 Difference]: With dead ends: 487 [2018-07-23 13:43:01,093 INFO L226 Difference]: Without dead ends: 292 [2018-07-23 13:43:01,097 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 288 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13585 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=19009, Invalid=64801, Unknown=0, NotChecked=0, Total=83810 [2018-07-23 13:43:01,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2018-07-23 13:43:01,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2018-07-23 13:43:01,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2018-07-23 13:43:01,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 293 transitions. [2018-07-23 13:43:01,131 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 293 transitions. Word has length 290 [2018-07-23 13:43:01,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:43:01,131 INFO L471 AbstractCegarLoop]: Abstraction has 292 states and 293 transitions. [2018-07-23 13:43:01,132 INFO L472 AbstractCegarLoop]: Interpolant automaton has 194 states. [2018-07-23 13:43:01,132 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 293 transitions. [2018-07-23 13:43:01,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2018-07-23 13:43:01,132 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:43:01,132 INFO L357 BasicCegarLoop]: trace histogram [96, 96, 95, 1, 1, 1, 1] [2018-07-23 13:43:01,133 INFO L414 AbstractCegarLoop]: === Iteration 192 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:43:01,133 INFO L82 PathProgramCache]: Analyzing trace with hash -2030014957, now seen corresponding path program 190 times [2018-07-23 13:43:01,133 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:43:01,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:43:01,681 INFO L134 CoverageAnalysis]: Checked inductivity of 13776 backedges. 4656 proven. 9120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:01,682 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:43:01,682 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [99] total 99 [2018-07-23 13:43:01,682 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:43:01,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:01,683 INFO L185 omatonBuilderFactory]: Interpolants [167826#true, 167827#false, 167830#(<= 2 ULTIMATE.start_main_~k~5), 167831#(<= 3 ULTIMATE.start_main_~k~5), 167828#(<= 0 ULTIMATE.start_main_~k~5), 167829#(<= 1 ULTIMATE.start_main_~k~5), 167834#(<= 6 ULTIMATE.start_main_~k~5), 167835#(<= 7 ULTIMATE.start_main_~k~5), 167832#(<= 4 ULTIMATE.start_main_~k~5), 167833#(<= 5 ULTIMATE.start_main_~k~5), 167838#(<= 10 ULTIMATE.start_main_~k~5), 167839#(<= 11 ULTIMATE.start_main_~k~5), 167836#(<= 8 ULTIMATE.start_main_~k~5), 167837#(<= 9 ULTIMATE.start_main_~k~5), 167842#(<= 14 ULTIMATE.start_main_~k~5), 167843#(<= 15 ULTIMATE.start_main_~k~5), 167840#(<= 12 ULTIMATE.start_main_~k~5), 167841#(<= 13 ULTIMATE.start_main_~k~5), 167846#(<= 18 ULTIMATE.start_main_~k~5), 167847#(<= 19 ULTIMATE.start_main_~k~5), 167844#(<= 16 ULTIMATE.start_main_~k~5), 167845#(<= 17 ULTIMATE.start_main_~k~5), 167850#(<= 22 ULTIMATE.start_main_~k~5), 167851#(<= 23 ULTIMATE.start_main_~k~5), 167848#(<= 20 ULTIMATE.start_main_~k~5), 167849#(<= 21 ULTIMATE.start_main_~k~5), 167854#(<= 26 ULTIMATE.start_main_~k~5), 167855#(<= 27 ULTIMATE.start_main_~k~5), 167852#(<= 24 ULTIMATE.start_main_~k~5), 167853#(<= 25 ULTIMATE.start_main_~k~5), 167858#(<= 30 ULTIMATE.start_main_~k~5), 167859#(<= 31 ULTIMATE.start_main_~k~5), 167856#(<= 28 ULTIMATE.start_main_~k~5), 167857#(<= 29 ULTIMATE.start_main_~k~5), 167862#(<= 34 ULTIMATE.start_main_~k~5), 167863#(<= 35 ULTIMATE.start_main_~k~5), 167860#(<= 32 ULTIMATE.start_main_~k~5), 167861#(<= 33 ULTIMATE.start_main_~k~5), 167866#(<= 38 ULTIMATE.start_main_~k~5), 167867#(<= 39 ULTIMATE.start_main_~k~5), 167864#(<= 36 ULTIMATE.start_main_~k~5), 167865#(<= 37 ULTIMATE.start_main_~k~5), 167870#(<= 42 ULTIMATE.start_main_~k~5), 167871#(<= 43 ULTIMATE.start_main_~k~5), 167868#(<= 40 ULTIMATE.start_main_~k~5), 167869#(<= 41 ULTIMATE.start_main_~k~5), 167874#(<= 46 ULTIMATE.start_main_~k~5), 167875#(<= 47 ULTIMATE.start_main_~k~5), 167872#(<= 44 ULTIMATE.start_main_~k~5), 167873#(<= 45 ULTIMATE.start_main_~k~5), 167878#(<= 50 ULTIMATE.start_main_~k~5), 167879#(<= 51 ULTIMATE.start_main_~k~5), 167876#(<= 48 ULTIMATE.start_main_~k~5), 167877#(<= 49 ULTIMATE.start_main_~k~5), 167882#(<= 54 ULTIMATE.start_main_~k~5), 167883#(<= 55 ULTIMATE.start_main_~k~5), 167880#(<= 52 ULTIMATE.start_main_~k~5), 167881#(<= 53 ULTIMATE.start_main_~k~5), 167886#(<= 58 ULTIMATE.start_main_~k~5), 167887#(<= 59 ULTIMATE.start_main_~k~5), 167884#(<= 56 ULTIMATE.start_main_~k~5), 167885#(<= 57 ULTIMATE.start_main_~k~5), 167890#(<= 62 ULTIMATE.start_main_~k~5), 167891#(<= 63 ULTIMATE.start_main_~k~5), 167888#(<= 60 ULTIMATE.start_main_~k~5), 167889#(<= 61 ULTIMATE.start_main_~k~5), 167894#(<= 66 ULTIMATE.start_main_~k~5), 167895#(<= 67 ULTIMATE.start_main_~k~5), 167892#(<= 64 ULTIMATE.start_main_~k~5), 167893#(<= 65 ULTIMATE.start_main_~k~5), 167898#(<= 70 ULTIMATE.start_main_~k~5), 167899#(<= 71 ULTIMATE.start_main_~k~5), 167896#(<= 68 ULTIMATE.start_main_~k~5), 167897#(<= 69 ULTIMATE.start_main_~k~5), 167902#(<= 74 ULTIMATE.start_main_~k~5), 167903#(<= 75 ULTIMATE.start_main_~k~5), 167900#(<= 72 ULTIMATE.start_main_~k~5), 167901#(<= 73 ULTIMATE.start_main_~k~5), 167906#(<= 78 ULTIMATE.start_main_~k~5), 167907#(<= 79 ULTIMATE.start_main_~k~5), 167904#(<= 76 ULTIMATE.start_main_~k~5), 167905#(<= 77 ULTIMATE.start_main_~k~5), 167910#(<= 82 ULTIMATE.start_main_~k~5), 167911#(<= 83 ULTIMATE.start_main_~k~5), 167908#(<= 80 ULTIMATE.start_main_~k~5), 167909#(<= 81 ULTIMATE.start_main_~k~5), 167914#(<= 86 ULTIMATE.start_main_~k~5), 167915#(<= 87 ULTIMATE.start_main_~k~5), 167912#(<= 84 ULTIMATE.start_main_~k~5), 167913#(<= 85 ULTIMATE.start_main_~k~5), 167918#(<= 90 ULTIMATE.start_main_~k~5), 167919#(<= 91 ULTIMATE.start_main_~k~5), 167916#(<= 88 ULTIMATE.start_main_~k~5), 167917#(<= 89 ULTIMATE.start_main_~k~5), 167922#(<= 94 ULTIMATE.start_main_~k~5), 167923#(<= 95 ULTIMATE.start_main_~k~5), 167920#(<= 92 ULTIMATE.start_main_~k~5), 167921#(<= 93 ULTIMATE.start_main_~k~5), 167924#(<= 96 ULTIMATE.start_main_~k~5), 167925#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond)] [2018-07-23 13:43:01,684 INFO L134 CoverageAnalysis]: Checked inductivity of 13776 backedges. 4656 proven. 9120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:01,684 INFO L450 AbstractCegarLoop]: Interpolant automaton has 100 states [2018-07-23 13:43:01,685 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2018-07-23 13:43:01,685 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4853, Invalid=5047, Unknown=0, NotChecked=0, Total=9900 [2018-07-23 13:43:01,685 INFO L87 Difference]: Start difference. First operand 292 states and 293 transitions. Second operand 100 states. [2018-07-23 13:43:02,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:43:02,066 INFO L93 Difference]: Finished difference Result 300 states and 301 transitions. [2018-07-23 13:43:02,067 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2018-07-23 13:43:02,067 INFO L78 Accepts]: Start accepts. Automaton has 100 states. Word has length 291 [2018-07-23 13:43:02,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:43:02,067 INFO L225 Difference]: With dead ends: 300 [2018-07-23 13:43:02,067 INFO L226 Difference]: Without dead ends: 298 [2018-07-23 13:43:02,070 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 195 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9312 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=14553, Invalid=24059, Unknown=0, NotChecked=0, Total=38612 [2018-07-23 13:43:02,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2018-07-23 13:43:02,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 294. [2018-07-23 13:43:02,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2018-07-23 13:43:02,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 295 transitions. [2018-07-23 13:43:02,105 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 295 transitions. Word has length 291 [2018-07-23 13:43:02,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:43:02,106 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 295 transitions. [2018-07-23 13:43:02,106 INFO L472 AbstractCegarLoop]: Interpolant automaton has 100 states. [2018-07-23 13:43:02,106 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 295 transitions. [2018-07-23 13:43:02,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2018-07-23 13:43:02,107 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:43:02,107 INFO L357 BasicCegarLoop]: trace histogram [97, 96, 96, 1, 1, 1, 1] [2018-07-23 13:43:02,108 INFO L414 AbstractCegarLoop]: === Iteration 193 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:43:02,108 INFO L82 PathProgramCache]: Analyzing trace with hash -929155269, now seen corresponding path program 191 times [2018-07-23 13:43:02,108 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:43:02,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:43:02,893 INFO L134 CoverageAnalysis]: Checked inductivity of 13968 backedges. 9312 proven. 4656 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:02,893 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:43:02,894 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [195] total 195 [2018-07-23 13:43:02,894 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:43:02,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:02,894 INFO L185 omatonBuilderFactory]: Interpolants [169474#(<= ULTIMATE.start_main_~j~5 29), 169475#(<= ULTIMATE.start_main_~j~5 28), 169472#(<= ULTIMATE.start_main_~j~5 31), 169473#(<= ULTIMATE.start_main_~j~5 30), 169478#(<= ULTIMATE.start_main_~j~5 25), 169479#(<= ULTIMATE.start_main_~j~5 24), 169476#(<= ULTIMATE.start_main_~j~5 27), 169477#(<= ULTIMATE.start_main_~j~5 26), 169482#(<= ULTIMATE.start_main_~j~5 21), 169483#(<= ULTIMATE.start_main_~j~5 20), 169480#(<= ULTIMATE.start_main_~j~5 23), 169481#(<= ULTIMATE.start_main_~j~5 22), 169486#(<= ULTIMATE.start_main_~j~5 17), 169487#(<= ULTIMATE.start_main_~j~5 16), 169484#(<= ULTIMATE.start_main_~j~5 19), 169485#(<= ULTIMATE.start_main_~j~5 18), 169490#(<= ULTIMATE.start_main_~j~5 13), 169491#(<= ULTIMATE.start_main_~j~5 12), 169488#(<= ULTIMATE.start_main_~j~5 15), 169489#(<= ULTIMATE.start_main_~j~5 14), 169494#(<= ULTIMATE.start_main_~j~5 9), 169495#(<= ULTIMATE.start_main_~j~5 8), 169492#(<= ULTIMATE.start_main_~j~5 11), 169493#(<= ULTIMATE.start_main_~j~5 10), 169498#(<= ULTIMATE.start_main_~j~5 5), 169499#(<= ULTIMATE.start_main_~j~5 4), 169496#(<= ULTIMATE.start_main_~j~5 7), 169497#(<= ULTIMATE.start_main_~j~5 6), 169502#(<= ULTIMATE.start_main_~j~5 1), 169503#(<= ULTIMATE.start_main_~j~5 0), 169500#(<= ULTIMATE.start_main_~j~5 3), 169501#(<= ULTIMATE.start_main_~j~5 2), 169310#(<= ULTIMATE.start_main_~i~5 0), 169311#(<= ULTIMATE.start_main_~i~5 1), 169308#true, 169309#false, 169314#(<= ULTIMATE.start_main_~i~5 4), 169315#(<= ULTIMATE.start_main_~i~5 5), 169312#(<= ULTIMATE.start_main_~i~5 2), 169313#(<= ULTIMATE.start_main_~i~5 3), 169318#(<= ULTIMATE.start_main_~i~5 8), 169319#(<= ULTIMATE.start_main_~i~5 9), 169316#(<= ULTIMATE.start_main_~i~5 6), 169317#(<= ULTIMATE.start_main_~i~5 7), 169322#(<= ULTIMATE.start_main_~i~5 12), 169323#(<= ULTIMATE.start_main_~i~5 13), 169320#(<= ULTIMATE.start_main_~i~5 10), 169321#(<= ULTIMATE.start_main_~i~5 11), 169326#(<= ULTIMATE.start_main_~i~5 16), 169327#(<= ULTIMATE.start_main_~i~5 17), 169324#(<= ULTIMATE.start_main_~i~5 14), 169325#(<= ULTIMATE.start_main_~i~5 15), 169330#(<= ULTIMATE.start_main_~i~5 20), 169331#(<= ULTIMATE.start_main_~i~5 21), 169328#(<= ULTIMATE.start_main_~i~5 18), 169329#(<= ULTIMATE.start_main_~i~5 19), 169334#(<= ULTIMATE.start_main_~i~5 24), 169335#(<= ULTIMATE.start_main_~i~5 25), 169332#(<= ULTIMATE.start_main_~i~5 22), 169333#(<= ULTIMATE.start_main_~i~5 23), 169338#(<= ULTIMATE.start_main_~i~5 28), 169339#(<= ULTIMATE.start_main_~i~5 29), 169336#(<= ULTIMATE.start_main_~i~5 26), 169337#(<= ULTIMATE.start_main_~i~5 27), 169342#(<= ULTIMATE.start_main_~i~5 32), 169343#(<= ULTIMATE.start_main_~i~5 33), 169340#(<= ULTIMATE.start_main_~i~5 30), 169341#(<= ULTIMATE.start_main_~i~5 31), 169346#(<= ULTIMATE.start_main_~i~5 36), 169347#(<= ULTIMATE.start_main_~i~5 37), 169344#(<= ULTIMATE.start_main_~i~5 34), 169345#(<= ULTIMATE.start_main_~i~5 35), 169350#(<= ULTIMATE.start_main_~i~5 40), 169351#(<= ULTIMATE.start_main_~i~5 41), 169348#(<= ULTIMATE.start_main_~i~5 38), 169349#(<= ULTIMATE.start_main_~i~5 39), 169354#(<= ULTIMATE.start_main_~i~5 44), 169355#(<= ULTIMATE.start_main_~i~5 45), 169352#(<= ULTIMATE.start_main_~i~5 42), 169353#(<= ULTIMATE.start_main_~i~5 43), 169358#(<= ULTIMATE.start_main_~i~5 48), 169359#(<= ULTIMATE.start_main_~i~5 49), 169356#(<= ULTIMATE.start_main_~i~5 46), 169357#(<= ULTIMATE.start_main_~i~5 47), 169362#(<= ULTIMATE.start_main_~i~5 52), 169363#(<= ULTIMATE.start_main_~i~5 53), 169360#(<= ULTIMATE.start_main_~i~5 50), 169361#(<= ULTIMATE.start_main_~i~5 51), 169366#(<= ULTIMATE.start_main_~i~5 56), 169367#(<= ULTIMATE.start_main_~i~5 57), 169364#(<= ULTIMATE.start_main_~i~5 54), 169365#(<= ULTIMATE.start_main_~i~5 55), 169370#(<= ULTIMATE.start_main_~i~5 60), 169371#(<= ULTIMATE.start_main_~i~5 61), 169368#(<= ULTIMATE.start_main_~i~5 58), 169369#(<= ULTIMATE.start_main_~i~5 59), 169374#(<= ULTIMATE.start_main_~i~5 64), 169375#(<= ULTIMATE.start_main_~i~5 65), 169372#(<= ULTIMATE.start_main_~i~5 62), 169373#(<= ULTIMATE.start_main_~i~5 63), 169378#(<= ULTIMATE.start_main_~i~5 68), 169379#(<= ULTIMATE.start_main_~i~5 69), 169376#(<= ULTIMATE.start_main_~i~5 66), 169377#(<= ULTIMATE.start_main_~i~5 67), 169382#(<= ULTIMATE.start_main_~i~5 72), 169383#(<= ULTIMATE.start_main_~i~5 73), 169380#(<= ULTIMATE.start_main_~i~5 70), 169381#(<= ULTIMATE.start_main_~i~5 71), 169386#(<= ULTIMATE.start_main_~i~5 76), 169387#(<= ULTIMATE.start_main_~i~5 77), 169384#(<= ULTIMATE.start_main_~i~5 74), 169385#(<= ULTIMATE.start_main_~i~5 75), 169390#(<= ULTIMATE.start_main_~i~5 80), 169391#(<= ULTIMATE.start_main_~i~5 81), 169388#(<= ULTIMATE.start_main_~i~5 78), 169389#(<= ULTIMATE.start_main_~i~5 79), 169394#(<= ULTIMATE.start_main_~i~5 84), 169395#(<= ULTIMATE.start_main_~i~5 85), 169392#(<= ULTIMATE.start_main_~i~5 82), 169393#(<= ULTIMATE.start_main_~i~5 83), 169398#(<= ULTIMATE.start_main_~i~5 88), 169399#(<= ULTIMATE.start_main_~i~5 89), 169396#(<= ULTIMATE.start_main_~i~5 86), 169397#(<= ULTIMATE.start_main_~i~5 87), 169402#(<= ULTIMATE.start_main_~i~5 92), 169403#(<= ULTIMATE.start_main_~i~5 93), 169400#(<= ULTIMATE.start_main_~i~5 90), 169401#(<= ULTIMATE.start_main_~i~5 91), 169406#(<= ULTIMATE.start_main_~i~5 96), 169407#(<= ULTIMATE.start_main_~j~5 96), 169404#(<= ULTIMATE.start_main_~i~5 94), 169405#(<= ULTIMATE.start_main_~i~5 95), 169410#(<= ULTIMATE.start_main_~j~5 93), 169411#(<= ULTIMATE.start_main_~j~5 92), 169408#(<= ULTIMATE.start_main_~j~5 95), 169409#(<= ULTIMATE.start_main_~j~5 94), 169414#(<= ULTIMATE.start_main_~j~5 89), 169415#(<= ULTIMATE.start_main_~j~5 88), 169412#(<= ULTIMATE.start_main_~j~5 91), 169413#(<= ULTIMATE.start_main_~j~5 90), 169418#(<= ULTIMATE.start_main_~j~5 85), 169419#(<= ULTIMATE.start_main_~j~5 84), 169416#(<= ULTIMATE.start_main_~j~5 87), 169417#(<= ULTIMATE.start_main_~j~5 86), 169422#(<= ULTIMATE.start_main_~j~5 81), 169423#(<= ULTIMATE.start_main_~j~5 80), 169420#(<= ULTIMATE.start_main_~j~5 83), 169421#(<= ULTIMATE.start_main_~j~5 82), 169426#(<= ULTIMATE.start_main_~j~5 77), 169427#(<= ULTIMATE.start_main_~j~5 76), 169424#(<= ULTIMATE.start_main_~j~5 79), 169425#(<= ULTIMATE.start_main_~j~5 78), 169430#(<= ULTIMATE.start_main_~j~5 73), 169431#(<= ULTIMATE.start_main_~j~5 72), 169428#(<= ULTIMATE.start_main_~j~5 75), 169429#(<= ULTIMATE.start_main_~j~5 74), 169434#(<= ULTIMATE.start_main_~j~5 69), 169435#(<= ULTIMATE.start_main_~j~5 68), 169432#(<= ULTIMATE.start_main_~j~5 71), 169433#(<= ULTIMATE.start_main_~j~5 70), 169438#(<= ULTIMATE.start_main_~j~5 65), 169439#(<= ULTIMATE.start_main_~j~5 64), 169436#(<= ULTIMATE.start_main_~j~5 67), 169437#(<= ULTIMATE.start_main_~j~5 66), 169442#(<= ULTIMATE.start_main_~j~5 61), 169443#(<= ULTIMATE.start_main_~j~5 60), 169440#(<= ULTIMATE.start_main_~j~5 63), 169441#(<= ULTIMATE.start_main_~j~5 62), 169446#(<= ULTIMATE.start_main_~j~5 57), 169447#(<= ULTIMATE.start_main_~j~5 56), 169444#(<= ULTIMATE.start_main_~j~5 59), 169445#(<= ULTIMATE.start_main_~j~5 58), 169450#(<= ULTIMATE.start_main_~j~5 53), 169451#(<= ULTIMATE.start_main_~j~5 52), 169448#(<= ULTIMATE.start_main_~j~5 55), 169449#(<= ULTIMATE.start_main_~j~5 54), 169454#(<= ULTIMATE.start_main_~j~5 49), 169455#(<= ULTIMATE.start_main_~j~5 48), 169452#(<= ULTIMATE.start_main_~j~5 51), 169453#(<= ULTIMATE.start_main_~j~5 50), 169458#(<= ULTIMATE.start_main_~j~5 45), 169459#(<= ULTIMATE.start_main_~j~5 44), 169456#(<= ULTIMATE.start_main_~j~5 47), 169457#(<= ULTIMATE.start_main_~j~5 46), 169462#(<= ULTIMATE.start_main_~j~5 41), 169463#(<= ULTIMATE.start_main_~j~5 40), 169460#(<= ULTIMATE.start_main_~j~5 43), 169461#(<= ULTIMATE.start_main_~j~5 42), 169466#(<= ULTIMATE.start_main_~j~5 37), 169467#(<= ULTIMATE.start_main_~j~5 36), 169464#(<= ULTIMATE.start_main_~j~5 39), 169465#(<= ULTIMATE.start_main_~j~5 38), 169470#(<= ULTIMATE.start_main_~j~5 33), 169471#(<= ULTIMATE.start_main_~j~5 32), 169468#(<= ULTIMATE.start_main_~j~5 35), 169469#(<= ULTIMATE.start_main_~j~5 34)] [2018-07-23 13:43:02,895 INFO L134 CoverageAnalysis]: Checked inductivity of 13968 backedges. 9312 proven. 4656 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:02,895 INFO L450 AbstractCegarLoop]: Interpolant automaton has 196 states [2018-07-23 13:43:02,896 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 196 interpolants. [2018-07-23 13:43:02,897 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9701, Invalid=28519, Unknown=0, NotChecked=0, Total=38220 [2018-07-23 13:43:02,898 INFO L87 Difference]: Start difference. First operand 294 states and 295 transitions. Second operand 196 states. [2018-07-23 13:43:05,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:43:05,166 INFO L93 Difference]: Finished difference Result 492 states and 494 transitions. [2018-07-23 13:43:05,166 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2018-07-23 13:43:05,167 INFO L78 Accepts]: Start accepts. Automaton has 196 states. Word has length 293 [2018-07-23 13:43:05,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:43:05,167 INFO L225 Difference]: With dead ends: 492 [2018-07-23 13:43:05,167 INFO L226 Difference]: Without dead ends: 295 [2018-07-23 13:43:05,173 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 291 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13872 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=19401, Invalid=66155, Unknown=0, NotChecked=0, Total=85556 [2018-07-23 13:43:05,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2018-07-23 13:43:05,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 295. [2018-07-23 13:43:05,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295 states. [2018-07-23 13:43:05,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 296 transitions. [2018-07-23 13:43:05,208 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 296 transitions. Word has length 293 [2018-07-23 13:43:05,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:43:05,208 INFO L471 AbstractCegarLoop]: Abstraction has 295 states and 296 transitions. [2018-07-23 13:43:05,208 INFO L472 AbstractCegarLoop]: Interpolant automaton has 196 states. [2018-07-23 13:43:05,208 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 296 transitions. [2018-07-23 13:43:05,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2018-07-23 13:43:05,209 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:43:05,209 INFO L357 BasicCegarLoop]: trace histogram [97, 97, 96, 1, 1, 1, 1] [2018-07-23 13:43:05,209 INFO L414 AbstractCegarLoop]: === Iteration 194 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:43:05,210 INFO L82 PathProgramCache]: Analyzing trace with hash 1447088994, now seen corresponding path program 192 times [2018-07-23 13:43:05,210 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:43:05,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:43:05,730 INFO L134 CoverageAnalysis]: Checked inductivity of 14065 backedges. 4753 proven. 9312 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:05,730 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:43:05,731 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [100] total 100 [2018-07-23 13:43:05,731 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:43:05,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:05,731 INFO L185 omatonBuilderFactory]: Interpolants [171274#(<= 0 ULTIMATE.start_main_~k~5), 171275#(<= 1 ULTIMATE.start_main_~k~5), 171272#true, 171273#false, 171278#(<= 4 ULTIMATE.start_main_~k~5), 171279#(<= 5 ULTIMATE.start_main_~k~5), 171276#(<= 2 ULTIMATE.start_main_~k~5), 171277#(<= 3 ULTIMATE.start_main_~k~5), 171282#(<= 8 ULTIMATE.start_main_~k~5), 171283#(<= 9 ULTIMATE.start_main_~k~5), 171280#(<= 6 ULTIMATE.start_main_~k~5), 171281#(<= 7 ULTIMATE.start_main_~k~5), 171286#(<= 12 ULTIMATE.start_main_~k~5), 171287#(<= 13 ULTIMATE.start_main_~k~5), 171284#(<= 10 ULTIMATE.start_main_~k~5), 171285#(<= 11 ULTIMATE.start_main_~k~5), 171290#(<= 16 ULTIMATE.start_main_~k~5), 171291#(<= 17 ULTIMATE.start_main_~k~5), 171288#(<= 14 ULTIMATE.start_main_~k~5), 171289#(<= 15 ULTIMATE.start_main_~k~5), 171294#(<= 20 ULTIMATE.start_main_~k~5), 171295#(<= 21 ULTIMATE.start_main_~k~5), 171292#(<= 18 ULTIMATE.start_main_~k~5), 171293#(<= 19 ULTIMATE.start_main_~k~5), 171298#(<= 24 ULTIMATE.start_main_~k~5), 171299#(<= 25 ULTIMATE.start_main_~k~5), 171296#(<= 22 ULTIMATE.start_main_~k~5), 171297#(<= 23 ULTIMATE.start_main_~k~5), 171302#(<= 28 ULTIMATE.start_main_~k~5), 171303#(<= 29 ULTIMATE.start_main_~k~5), 171300#(<= 26 ULTIMATE.start_main_~k~5), 171301#(<= 27 ULTIMATE.start_main_~k~5), 171306#(<= 32 ULTIMATE.start_main_~k~5), 171307#(<= 33 ULTIMATE.start_main_~k~5), 171304#(<= 30 ULTIMATE.start_main_~k~5), 171305#(<= 31 ULTIMATE.start_main_~k~5), 171310#(<= 36 ULTIMATE.start_main_~k~5), 171311#(<= 37 ULTIMATE.start_main_~k~5), 171308#(<= 34 ULTIMATE.start_main_~k~5), 171309#(<= 35 ULTIMATE.start_main_~k~5), 171314#(<= 40 ULTIMATE.start_main_~k~5), 171315#(<= 41 ULTIMATE.start_main_~k~5), 171312#(<= 38 ULTIMATE.start_main_~k~5), 171313#(<= 39 ULTIMATE.start_main_~k~5), 171318#(<= 44 ULTIMATE.start_main_~k~5), 171319#(<= 45 ULTIMATE.start_main_~k~5), 171316#(<= 42 ULTIMATE.start_main_~k~5), 171317#(<= 43 ULTIMATE.start_main_~k~5), 171322#(<= 48 ULTIMATE.start_main_~k~5), 171323#(<= 49 ULTIMATE.start_main_~k~5), 171320#(<= 46 ULTIMATE.start_main_~k~5), 171321#(<= 47 ULTIMATE.start_main_~k~5), 171326#(<= 52 ULTIMATE.start_main_~k~5), 171327#(<= 53 ULTIMATE.start_main_~k~5), 171324#(<= 50 ULTIMATE.start_main_~k~5), 171325#(<= 51 ULTIMATE.start_main_~k~5), 171330#(<= 56 ULTIMATE.start_main_~k~5), 171331#(<= 57 ULTIMATE.start_main_~k~5), 171328#(<= 54 ULTIMATE.start_main_~k~5), 171329#(<= 55 ULTIMATE.start_main_~k~5), 171334#(<= 60 ULTIMATE.start_main_~k~5), 171335#(<= 61 ULTIMATE.start_main_~k~5), 171332#(<= 58 ULTIMATE.start_main_~k~5), 171333#(<= 59 ULTIMATE.start_main_~k~5), 171338#(<= 64 ULTIMATE.start_main_~k~5), 171339#(<= 65 ULTIMATE.start_main_~k~5), 171336#(<= 62 ULTIMATE.start_main_~k~5), 171337#(<= 63 ULTIMATE.start_main_~k~5), 171342#(<= 68 ULTIMATE.start_main_~k~5), 171343#(<= 69 ULTIMATE.start_main_~k~5), 171340#(<= 66 ULTIMATE.start_main_~k~5), 171341#(<= 67 ULTIMATE.start_main_~k~5), 171346#(<= 72 ULTIMATE.start_main_~k~5), 171347#(<= 73 ULTIMATE.start_main_~k~5), 171344#(<= 70 ULTIMATE.start_main_~k~5), 171345#(<= 71 ULTIMATE.start_main_~k~5), 171350#(<= 76 ULTIMATE.start_main_~k~5), 171351#(<= 77 ULTIMATE.start_main_~k~5), 171348#(<= 74 ULTIMATE.start_main_~k~5), 171349#(<= 75 ULTIMATE.start_main_~k~5), 171354#(<= 80 ULTIMATE.start_main_~k~5), 171355#(<= 81 ULTIMATE.start_main_~k~5), 171352#(<= 78 ULTIMATE.start_main_~k~5), 171353#(<= 79 ULTIMATE.start_main_~k~5), 171358#(<= 84 ULTIMATE.start_main_~k~5), 171359#(<= 85 ULTIMATE.start_main_~k~5), 171356#(<= 82 ULTIMATE.start_main_~k~5), 171357#(<= 83 ULTIMATE.start_main_~k~5), 171362#(<= 88 ULTIMATE.start_main_~k~5), 171363#(<= 89 ULTIMATE.start_main_~k~5), 171360#(<= 86 ULTIMATE.start_main_~k~5), 171361#(<= 87 ULTIMATE.start_main_~k~5), 171366#(<= 92 ULTIMATE.start_main_~k~5), 171367#(<= 93 ULTIMATE.start_main_~k~5), 171364#(<= 90 ULTIMATE.start_main_~k~5), 171365#(<= 91 ULTIMATE.start_main_~k~5), 171370#(<= 96 ULTIMATE.start_main_~k~5), 171371#(<= 97 ULTIMATE.start_main_~k~5), 171368#(<= 94 ULTIMATE.start_main_~k~5), 171369#(<= 95 ULTIMATE.start_main_~k~5), 171372#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond)] [2018-07-23 13:43:05,732 INFO L134 CoverageAnalysis]: Checked inductivity of 14065 backedges. 4753 proven. 9312 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:05,732 INFO L450 AbstractCegarLoop]: Interpolant automaton has 101 states [2018-07-23 13:43:05,733 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2018-07-23 13:43:05,733 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4952, Invalid=5148, Unknown=0, NotChecked=0, Total=10100 [2018-07-23 13:43:05,733 INFO L87 Difference]: Start difference. First operand 295 states and 296 transitions. Second operand 101 states. [2018-07-23 13:43:06,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:43:06,155 INFO L93 Difference]: Finished difference Result 303 states and 304 transitions. [2018-07-23 13:43:06,155 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 198 states. [2018-07-23 13:43:06,155 INFO L78 Accepts]: Start accepts. Automaton has 101 states. Word has length 294 [2018-07-23 13:43:06,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:43:06,155 INFO L225 Difference]: With dead ends: 303 [2018-07-23 13:43:06,156 INFO L226 Difference]: Without dead ends: 301 [2018-07-23 13:43:06,157 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 197 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9506 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=14850, Invalid=24552, Unknown=0, NotChecked=0, Total=39402 [2018-07-23 13:43:06,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2018-07-23 13:43:06,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 297. [2018-07-23 13:43:06,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 297 states. [2018-07-23 13:43:06,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 298 transitions. [2018-07-23 13:43:06,192 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 298 transitions. Word has length 294 [2018-07-23 13:43:06,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:43:06,192 INFO L471 AbstractCegarLoop]: Abstraction has 297 states and 298 transitions. [2018-07-23 13:43:06,192 INFO L472 AbstractCegarLoop]: Interpolant automaton has 101 states. [2018-07-23 13:43:06,192 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 298 transitions. [2018-07-23 13:43:06,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2018-07-23 13:43:06,193 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:43:06,193 INFO L357 BasicCegarLoop]: trace histogram [98, 97, 97, 1, 1, 1, 1] [2018-07-23 13:43:06,193 INFO L414 AbstractCegarLoop]: === Iteration 195 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:43:06,193 INFO L82 PathProgramCache]: Analyzing trace with hash -916814646, now seen corresponding path program 193 times [2018-07-23 13:43:06,193 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:43:06,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:43:06,995 INFO L134 CoverageAnalysis]: Checked inductivity of 14259 backedges. 9506 proven. 4753 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:06,995 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:43:06,995 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [197] total 197 [2018-07-23 13:43:06,995 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:43:06,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:06,996 INFO L185 omatonBuilderFactory]: Interpolants [172770#false, 172771#(<= ULTIMATE.start_main_~i~5 0), 172769#true, 172774#(<= ULTIMATE.start_main_~i~5 3), 172775#(<= ULTIMATE.start_main_~i~5 4), 172772#(<= ULTIMATE.start_main_~i~5 1), 172773#(<= ULTIMATE.start_main_~i~5 2), 172778#(<= ULTIMATE.start_main_~i~5 7), 172779#(<= ULTIMATE.start_main_~i~5 8), 172776#(<= ULTIMATE.start_main_~i~5 5), 172777#(<= ULTIMATE.start_main_~i~5 6), 172782#(<= ULTIMATE.start_main_~i~5 11), 172783#(<= ULTIMATE.start_main_~i~5 12), 172780#(<= ULTIMATE.start_main_~i~5 9), 172781#(<= ULTIMATE.start_main_~i~5 10), 172786#(<= ULTIMATE.start_main_~i~5 15), 172787#(<= ULTIMATE.start_main_~i~5 16), 172784#(<= ULTIMATE.start_main_~i~5 13), 172785#(<= ULTIMATE.start_main_~i~5 14), 172790#(<= ULTIMATE.start_main_~i~5 19), 172791#(<= ULTIMATE.start_main_~i~5 20), 172788#(<= ULTIMATE.start_main_~i~5 17), 172789#(<= ULTIMATE.start_main_~i~5 18), 172794#(<= ULTIMATE.start_main_~i~5 23), 172795#(<= ULTIMATE.start_main_~i~5 24), 172792#(<= ULTIMATE.start_main_~i~5 21), 172793#(<= ULTIMATE.start_main_~i~5 22), 172798#(<= ULTIMATE.start_main_~i~5 27), 172799#(<= ULTIMATE.start_main_~i~5 28), 172796#(<= ULTIMATE.start_main_~i~5 25), 172797#(<= ULTIMATE.start_main_~i~5 26), 172802#(<= ULTIMATE.start_main_~i~5 31), 172803#(<= ULTIMATE.start_main_~i~5 32), 172800#(<= ULTIMATE.start_main_~i~5 29), 172801#(<= ULTIMATE.start_main_~i~5 30), 172806#(<= ULTIMATE.start_main_~i~5 35), 172807#(<= ULTIMATE.start_main_~i~5 36), 172804#(<= ULTIMATE.start_main_~i~5 33), 172805#(<= ULTIMATE.start_main_~i~5 34), 172810#(<= ULTIMATE.start_main_~i~5 39), 172811#(<= ULTIMATE.start_main_~i~5 40), 172808#(<= ULTIMATE.start_main_~i~5 37), 172809#(<= ULTIMATE.start_main_~i~5 38), 172814#(<= ULTIMATE.start_main_~i~5 43), 172815#(<= ULTIMATE.start_main_~i~5 44), 172812#(<= ULTIMATE.start_main_~i~5 41), 172813#(<= ULTIMATE.start_main_~i~5 42), 172818#(<= ULTIMATE.start_main_~i~5 47), 172819#(<= ULTIMATE.start_main_~i~5 48), 172816#(<= ULTIMATE.start_main_~i~5 45), 172817#(<= ULTIMATE.start_main_~i~5 46), 172822#(<= ULTIMATE.start_main_~i~5 51), 172823#(<= ULTIMATE.start_main_~i~5 52), 172820#(<= ULTIMATE.start_main_~i~5 49), 172821#(<= ULTIMATE.start_main_~i~5 50), 172826#(<= ULTIMATE.start_main_~i~5 55), 172827#(<= ULTIMATE.start_main_~i~5 56), 172824#(<= ULTIMATE.start_main_~i~5 53), 172825#(<= ULTIMATE.start_main_~i~5 54), 172830#(<= ULTIMATE.start_main_~i~5 59), 172831#(<= ULTIMATE.start_main_~i~5 60), 172828#(<= ULTIMATE.start_main_~i~5 57), 172829#(<= ULTIMATE.start_main_~i~5 58), 172834#(<= ULTIMATE.start_main_~i~5 63), 172835#(<= ULTIMATE.start_main_~i~5 64), 172832#(<= ULTIMATE.start_main_~i~5 61), 172833#(<= ULTIMATE.start_main_~i~5 62), 172838#(<= ULTIMATE.start_main_~i~5 67), 172839#(<= ULTIMATE.start_main_~i~5 68), 172836#(<= ULTIMATE.start_main_~i~5 65), 172837#(<= ULTIMATE.start_main_~i~5 66), 172842#(<= ULTIMATE.start_main_~i~5 71), 172843#(<= ULTIMATE.start_main_~i~5 72), 172840#(<= ULTIMATE.start_main_~i~5 69), 172841#(<= ULTIMATE.start_main_~i~5 70), 172846#(<= ULTIMATE.start_main_~i~5 75), 172847#(<= ULTIMATE.start_main_~i~5 76), 172844#(<= ULTIMATE.start_main_~i~5 73), 172845#(<= ULTIMATE.start_main_~i~5 74), 172850#(<= ULTIMATE.start_main_~i~5 79), 172851#(<= ULTIMATE.start_main_~i~5 80), 172848#(<= ULTIMATE.start_main_~i~5 77), 172849#(<= ULTIMATE.start_main_~i~5 78), 172854#(<= ULTIMATE.start_main_~i~5 83), 172855#(<= ULTIMATE.start_main_~i~5 84), 172852#(<= ULTIMATE.start_main_~i~5 81), 172853#(<= ULTIMATE.start_main_~i~5 82), 172858#(<= ULTIMATE.start_main_~i~5 87), 172859#(<= ULTIMATE.start_main_~i~5 88), 172856#(<= ULTIMATE.start_main_~i~5 85), 172857#(<= ULTIMATE.start_main_~i~5 86), 172862#(<= ULTIMATE.start_main_~i~5 91), 172863#(<= ULTIMATE.start_main_~i~5 92), 172860#(<= ULTIMATE.start_main_~i~5 89), 172861#(<= ULTIMATE.start_main_~i~5 90), 172866#(<= ULTIMATE.start_main_~i~5 95), 172867#(<= ULTIMATE.start_main_~i~5 96), 172864#(<= ULTIMATE.start_main_~i~5 93), 172865#(<= ULTIMATE.start_main_~i~5 94), 172870#(<= ULTIMATE.start_main_~j~5 96), 172871#(<= ULTIMATE.start_main_~j~5 95), 172868#(<= ULTIMATE.start_main_~i~5 97), 172869#(<= ULTIMATE.start_main_~j~5 97), 172874#(<= ULTIMATE.start_main_~j~5 92), 172875#(<= ULTIMATE.start_main_~j~5 91), 172872#(<= ULTIMATE.start_main_~j~5 94), 172873#(<= ULTIMATE.start_main_~j~5 93), 172878#(<= ULTIMATE.start_main_~j~5 88), 172879#(<= ULTIMATE.start_main_~j~5 87), 172876#(<= ULTIMATE.start_main_~j~5 90), 172877#(<= ULTIMATE.start_main_~j~5 89), 172882#(<= ULTIMATE.start_main_~j~5 84), 172883#(<= ULTIMATE.start_main_~j~5 83), 172880#(<= ULTIMATE.start_main_~j~5 86), 172881#(<= ULTIMATE.start_main_~j~5 85), 172886#(<= ULTIMATE.start_main_~j~5 80), 172887#(<= ULTIMATE.start_main_~j~5 79), 172884#(<= ULTIMATE.start_main_~j~5 82), 172885#(<= ULTIMATE.start_main_~j~5 81), 172890#(<= ULTIMATE.start_main_~j~5 76), 172891#(<= ULTIMATE.start_main_~j~5 75), 172888#(<= ULTIMATE.start_main_~j~5 78), 172889#(<= ULTIMATE.start_main_~j~5 77), 172894#(<= ULTIMATE.start_main_~j~5 72), 172895#(<= ULTIMATE.start_main_~j~5 71), 172892#(<= ULTIMATE.start_main_~j~5 74), 172893#(<= ULTIMATE.start_main_~j~5 73), 172898#(<= ULTIMATE.start_main_~j~5 68), 172899#(<= ULTIMATE.start_main_~j~5 67), 172896#(<= ULTIMATE.start_main_~j~5 70), 172897#(<= ULTIMATE.start_main_~j~5 69), 172902#(<= ULTIMATE.start_main_~j~5 64), 172903#(<= ULTIMATE.start_main_~j~5 63), 172900#(<= ULTIMATE.start_main_~j~5 66), 172901#(<= ULTIMATE.start_main_~j~5 65), 172906#(<= ULTIMATE.start_main_~j~5 60), 172907#(<= ULTIMATE.start_main_~j~5 59), 172904#(<= ULTIMATE.start_main_~j~5 62), 172905#(<= ULTIMATE.start_main_~j~5 61), 172910#(<= ULTIMATE.start_main_~j~5 56), 172911#(<= ULTIMATE.start_main_~j~5 55), 172908#(<= ULTIMATE.start_main_~j~5 58), 172909#(<= ULTIMATE.start_main_~j~5 57), 172914#(<= ULTIMATE.start_main_~j~5 52), 172915#(<= ULTIMATE.start_main_~j~5 51), 172912#(<= ULTIMATE.start_main_~j~5 54), 172913#(<= ULTIMATE.start_main_~j~5 53), 172918#(<= ULTIMATE.start_main_~j~5 48), 172919#(<= ULTIMATE.start_main_~j~5 47), 172916#(<= ULTIMATE.start_main_~j~5 50), 172917#(<= ULTIMATE.start_main_~j~5 49), 172922#(<= ULTIMATE.start_main_~j~5 44), 172923#(<= ULTIMATE.start_main_~j~5 43), 172920#(<= ULTIMATE.start_main_~j~5 46), 172921#(<= ULTIMATE.start_main_~j~5 45), 172926#(<= ULTIMATE.start_main_~j~5 40), 172927#(<= ULTIMATE.start_main_~j~5 39), 172924#(<= ULTIMATE.start_main_~j~5 42), 172925#(<= ULTIMATE.start_main_~j~5 41), 172930#(<= ULTIMATE.start_main_~j~5 36), 172931#(<= ULTIMATE.start_main_~j~5 35), 172928#(<= ULTIMATE.start_main_~j~5 38), 172929#(<= ULTIMATE.start_main_~j~5 37), 172934#(<= ULTIMATE.start_main_~j~5 32), 172935#(<= ULTIMATE.start_main_~j~5 31), 172932#(<= ULTIMATE.start_main_~j~5 34), 172933#(<= ULTIMATE.start_main_~j~5 33), 172938#(<= ULTIMATE.start_main_~j~5 28), 172939#(<= ULTIMATE.start_main_~j~5 27), 172936#(<= ULTIMATE.start_main_~j~5 30), 172937#(<= ULTIMATE.start_main_~j~5 29), 172942#(<= ULTIMATE.start_main_~j~5 24), 172943#(<= ULTIMATE.start_main_~j~5 23), 172940#(<= ULTIMATE.start_main_~j~5 26), 172941#(<= ULTIMATE.start_main_~j~5 25), 172946#(<= ULTIMATE.start_main_~j~5 20), 172947#(<= ULTIMATE.start_main_~j~5 19), 172944#(<= ULTIMATE.start_main_~j~5 22), 172945#(<= ULTIMATE.start_main_~j~5 21), 172950#(<= ULTIMATE.start_main_~j~5 16), 172951#(<= ULTIMATE.start_main_~j~5 15), 172948#(<= ULTIMATE.start_main_~j~5 18), 172949#(<= ULTIMATE.start_main_~j~5 17), 172954#(<= ULTIMATE.start_main_~j~5 12), 172955#(<= ULTIMATE.start_main_~j~5 11), 172952#(<= ULTIMATE.start_main_~j~5 14), 172953#(<= ULTIMATE.start_main_~j~5 13), 172958#(<= ULTIMATE.start_main_~j~5 8), 172959#(<= ULTIMATE.start_main_~j~5 7), 172956#(<= ULTIMATE.start_main_~j~5 10), 172957#(<= ULTIMATE.start_main_~j~5 9), 172962#(<= ULTIMATE.start_main_~j~5 4), 172963#(<= ULTIMATE.start_main_~j~5 3), 172960#(<= ULTIMATE.start_main_~j~5 6), 172961#(<= ULTIMATE.start_main_~j~5 5), 172966#(<= ULTIMATE.start_main_~j~5 0), 172964#(<= ULTIMATE.start_main_~j~5 2), 172965#(<= ULTIMATE.start_main_~j~5 1)] [2018-07-23 13:43:06,997 INFO L134 CoverageAnalysis]: Checked inductivity of 14259 backedges. 9506 proven. 4753 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:06,997 INFO L450 AbstractCegarLoop]: Interpolant automaton has 198 states [2018-07-23 13:43:06,998 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 198 interpolants. [2018-07-23 13:43:06,999 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9899, Invalid=29107, Unknown=0, NotChecked=0, Total=39006 [2018-07-23 13:43:07,000 INFO L87 Difference]: Start difference. First operand 297 states and 298 transitions. Second operand 198 states. [2018-07-23 13:43:09,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:43:09,227 INFO L93 Difference]: Finished difference Result 497 states and 499 transitions. [2018-07-23 13:43:09,227 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 198 states. [2018-07-23 13:43:09,228 INFO L78 Accepts]: Start accepts. Automaton has 198 states. Word has length 296 [2018-07-23 13:43:09,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:43:09,228 INFO L225 Difference]: With dead ends: 497 [2018-07-23 13:43:09,228 INFO L226 Difference]: Without dead ends: 298 [2018-07-23 13:43:09,232 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 294 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14162 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=19797, Invalid=67523, Unknown=0, NotChecked=0, Total=87320 [2018-07-23 13:43:09,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2018-07-23 13:43:09,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2018-07-23 13:43:09,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2018-07-23 13:43:09,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 299 transitions. [2018-07-23 13:43:09,268 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 299 transitions. Word has length 296 [2018-07-23 13:43:09,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:43:09,268 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 299 transitions. [2018-07-23 13:43:09,268 INFO L472 AbstractCegarLoop]: Interpolant automaton has 198 states. [2018-07-23 13:43:09,268 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 299 transitions. [2018-07-23 13:43:09,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2018-07-23 13:43:09,269 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:43:09,269 INFO L357 BasicCegarLoop]: trace histogram [98, 98, 97, 1, 1, 1, 1] [2018-07-23 13:43:09,269 INFO L414 AbstractCegarLoop]: === Iteration 196 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:43:09,269 INFO L82 PathProgramCache]: Analyzing trace with hash 125051715, now seen corresponding path program 194 times [2018-07-23 13:43:09,269 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:43:09,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:43:09,776 INFO L134 CoverageAnalysis]: Checked inductivity of 14357 backedges. 4851 proven. 9506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:09,777 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:43:09,777 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [101] total 101 [2018-07-23 13:43:09,777 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:43:09,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:09,777 INFO L185 omatonBuilderFactory]: Interpolants [174850#(<= 95 ULTIMATE.start_main_~k~5), 174851#(<= 96 ULTIMATE.start_main_~k~5), 174848#(<= 93 ULTIMATE.start_main_~k~5), 174849#(<= 94 ULTIMATE.start_main_~k~5), 174854#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 174852#(<= 97 ULTIMATE.start_main_~k~5), 174853#(<= 98 ULTIMATE.start_main_~k~5), 174754#false, 174755#(<= 0 ULTIMATE.start_main_~k~5), 174753#true, 174758#(<= 3 ULTIMATE.start_main_~k~5), 174759#(<= 4 ULTIMATE.start_main_~k~5), 174756#(<= 1 ULTIMATE.start_main_~k~5), 174757#(<= 2 ULTIMATE.start_main_~k~5), 174762#(<= 7 ULTIMATE.start_main_~k~5), 174763#(<= 8 ULTIMATE.start_main_~k~5), 174760#(<= 5 ULTIMATE.start_main_~k~5), 174761#(<= 6 ULTIMATE.start_main_~k~5), 174766#(<= 11 ULTIMATE.start_main_~k~5), 174767#(<= 12 ULTIMATE.start_main_~k~5), 174764#(<= 9 ULTIMATE.start_main_~k~5), 174765#(<= 10 ULTIMATE.start_main_~k~5), 174770#(<= 15 ULTIMATE.start_main_~k~5), 174771#(<= 16 ULTIMATE.start_main_~k~5), 174768#(<= 13 ULTIMATE.start_main_~k~5), 174769#(<= 14 ULTIMATE.start_main_~k~5), 174774#(<= 19 ULTIMATE.start_main_~k~5), 174775#(<= 20 ULTIMATE.start_main_~k~5), 174772#(<= 17 ULTIMATE.start_main_~k~5), 174773#(<= 18 ULTIMATE.start_main_~k~5), 174778#(<= 23 ULTIMATE.start_main_~k~5), 174779#(<= 24 ULTIMATE.start_main_~k~5), 174776#(<= 21 ULTIMATE.start_main_~k~5), 174777#(<= 22 ULTIMATE.start_main_~k~5), 174782#(<= 27 ULTIMATE.start_main_~k~5), 174783#(<= 28 ULTIMATE.start_main_~k~5), 174780#(<= 25 ULTIMATE.start_main_~k~5), 174781#(<= 26 ULTIMATE.start_main_~k~5), 174786#(<= 31 ULTIMATE.start_main_~k~5), 174787#(<= 32 ULTIMATE.start_main_~k~5), 174784#(<= 29 ULTIMATE.start_main_~k~5), 174785#(<= 30 ULTIMATE.start_main_~k~5), 174790#(<= 35 ULTIMATE.start_main_~k~5), 174791#(<= 36 ULTIMATE.start_main_~k~5), 174788#(<= 33 ULTIMATE.start_main_~k~5), 174789#(<= 34 ULTIMATE.start_main_~k~5), 174794#(<= 39 ULTIMATE.start_main_~k~5), 174795#(<= 40 ULTIMATE.start_main_~k~5), 174792#(<= 37 ULTIMATE.start_main_~k~5), 174793#(<= 38 ULTIMATE.start_main_~k~5), 174798#(<= 43 ULTIMATE.start_main_~k~5), 174799#(<= 44 ULTIMATE.start_main_~k~5), 174796#(<= 41 ULTIMATE.start_main_~k~5), 174797#(<= 42 ULTIMATE.start_main_~k~5), 174802#(<= 47 ULTIMATE.start_main_~k~5), 174803#(<= 48 ULTIMATE.start_main_~k~5), 174800#(<= 45 ULTIMATE.start_main_~k~5), 174801#(<= 46 ULTIMATE.start_main_~k~5), 174806#(<= 51 ULTIMATE.start_main_~k~5), 174807#(<= 52 ULTIMATE.start_main_~k~5), 174804#(<= 49 ULTIMATE.start_main_~k~5), 174805#(<= 50 ULTIMATE.start_main_~k~5), 174810#(<= 55 ULTIMATE.start_main_~k~5), 174811#(<= 56 ULTIMATE.start_main_~k~5), 174808#(<= 53 ULTIMATE.start_main_~k~5), 174809#(<= 54 ULTIMATE.start_main_~k~5), 174814#(<= 59 ULTIMATE.start_main_~k~5), 174815#(<= 60 ULTIMATE.start_main_~k~5), 174812#(<= 57 ULTIMATE.start_main_~k~5), 174813#(<= 58 ULTIMATE.start_main_~k~5), 174818#(<= 63 ULTIMATE.start_main_~k~5), 174819#(<= 64 ULTIMATE.start_main_~k~5), 174816#(<= 61 ULTIMATE.start_main_~k~5), 174817#(<= 62 ULTIMATE.start_main_~k~5), 174822#(<= 67 ULTIMATE.start_main_~k~5), 174823#(<= 68 ULTIMATE.start_main_~k~5), 174820#(<= 65 ULTIMATE.start_main_~k~5), 174821#(<= 66 ULTIMATE.start_main_~k~5), 174826#(<= 71 ULTIMATE.start_main_~k~5), 174827#(<= 72 ULTIMATE.start_main_~k~5), 174824#(<= 69 ULTIMATE.start_main_~k~5), 174825#(<= 70 ULTIMATE.start_main_~k~5), 174830#(<= 75 ULTIMATE.start_main_~k~5), 174831#(<= 76 ULTIMATE.start_main_~k~5), 174828#(<= 73 ULTIMATE.start_main_~k~5), 174829#(<= 74 ULTIMATE.start_main_~k~5), 174834#(<= 79 ULTIMATE.start_main_~k~5), 174835#(<= 80 ULTIMATE.start_main_~k~5), 174832#(<= 77 ULTIMATE.start_main_~k~5), 174833#(<= 78 ULTIMATE.start_main_~k~5), 174838#(<= 83 ULTIMATE.start_main_~k~5), 174839#(<= 84 ULTIMATE.start_main_~k~5), 174836#(<= 81 ULTIMATE.start_main_~k~5), 174837#(<= 82 ULTIMATE.start_main_~k~5), 174842#(<= 87 ULTIMATE.start_main_~k~5), 174843#(<= 88 ULTIMATE.start_main_~k~5), 174840#(<= 85 ULTIMATE.start_main_~k~5), 174841#(<= 86 ULTIMATE.start_main_~k~5), 174846#(<= 91 ULTIMATE.start_main_~k~5), 174847#(<= 92 ULTIMATE.start_main_~k~5), 174844#(<= 89 ULTIMATE.start_main_~k~5), 174845#(<= 90 ULTIMATE.start_main_~k~5)] [2018-07-23 13:43:09,778 INFO L134 CoverageAnalysis]: Checked inductivity of 14357 backedges. 4851 proven. 9506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:09,778 INFO L450 AbstractCegarLoop]: Interpolant automaton has 102 states [2018-07-23 13:43:09,779 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2018-07-23 13:43:09,779 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5052, Invalid=5250, Unknown=0, NotChecked=0, Total=10302 [2018-07-23 13:43:09,779 INFO L87 Difference]: Start difference. First operand 298 states and 299 transitions. Second operand 102 states. [2018-07-23 13:43:10,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:43:10,235 INFO L93 Difference]: Finished difference Result 306 states and 307 transitions. [2018-07-23 13:43:10,235 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 200 states. [2018-07-23 13:43:10,235 INFO L78 Accepts]: Start accepts. Automaton has 102 states. Word has length 297 [2018-07-23 13:43:10,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:43:10,236 INFO L225 Difference]: With dead ends: 306 [2018-07-23 13:43:10,236 INFO L226 Difference]: Without dead ends: 304 [2018-07-23 13:43:10,237 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 199 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9702 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=15150, Invalid=25050, Unknown=0, NotChecked=0, Total=40200 [2018-07-23 13:43:10,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2018-07-23 13:43:10,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 300. [2018-07-23 13:43:10,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 300 states. [2018-07-23 13:43:10,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 301 transitions. [2018-07-23 13:43:10,273 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 301 transitions. Word has length 297 [2018-07-23 13:43:10,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:43:10,273 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 301 transitions. [2018-07-23 13:43:10,273 INFO L472 AbstractCegarLoop]: Interpolant automaton has 102 states. [2018-07-23 13:43:10,273 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 301 transitions. [2018-07-23 13:43:10,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2018-07-23 13:43:10,274 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:43:10,274 INFO L357 BasicCegarLoop]: trace histogram [99, 98, 98, 1, 1, 1, 1] [2018-07-23 13:43:10,274 INFO L414 AbstractCegarLoop]: === Iteration 197 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:43:10,274 INFO L82 PathProgramCache]: Analyzing trace with hash -84320149, now seen corresponding path program 195 times [2018-07-23 13:43:10,274 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:43:10,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:43:11,100 INFO L134 CoverageAnalysis]: Checked inductivity of 14553 backedges. 9702 proven. 4851 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:11,100 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:43:11,100 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [199] total 199 [2018-07-23 13:43:11,100 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:43:11,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:11,101 INFO L185 omatonBuilderFactory]: Interpolants [176266#false, 176267#(<= ULTIMATE.start_main_~i~5 0), 176265#true, 176270#(<= ULTIMATE.start_main_~i~5 3), 176271#(<= ULTIMATE.start_main_~i~5 4), 176268#(<= ULTIMATE.start_main_~i~5 1), 176269#(<= ULTIMATE.start_main_~i~5 2), 176274#(<= ULTIMATE.start_main_~i~5 7), 176275#(<= ULTIMATE.start_main_~i~5 8), 176272#(<= ULTIMATE.start_main_~i~5 5), 176273#(<= ULTIMATE.start_main_~i~5 6), 176278#(<= ULTIMATE.start_main_~i~5 11), 176279#(<= ULTIMATE.start_main_~i~5 12), 176276#(<= ULTIMATE.start_main_~i~5 9), 176277#(<= ULTIMATE.start_main_~i~5 10), 176282#(<= ULTIMATE.start_main_~i~5 15), 176283#(<= ULTIMATE.start_main_~i~5 16), 176280#(<= ULTIMATE.start_main_~i~5 13), 176281#(<= ULTIMATE.start_main_~i~5 14), 176286#(<= ULTIMATE.start_main_~i~5 19), 176287#(<= ULTIMATE.start_main_~i~5 20), 176284#(<= ULTIMATE.start_main_~i~5 17), 176285#(<= ULTIMATE.start_main_~i~5 18), 176290#(<= ULTIMATE.start_main_~i~5 23), 176291#(<= ULTIMATE.start_main_~i~5 24), 176288#(<= ULTIMATE.start_main_~i~5 21), 176289#(<= ULTIMATE.start_main_~i~5 22), 176294#(<= ULTIMATE.start_main_~i~5 27), 176295#(<= ULTIMATE.start_main_~i~5 28), 176292#(<= ULTIMATE.start_main_~i~5 25), 176293#(<= ULTIMATE.start_main_~i~5 26), 176298#(<= ULTIMATE.start_main_~i~5 31), 176299#(<= ULTIMATE.start_main_~i~5 32), 176296#(<= ULTIMATE.start_main_~i~5 29), 176297#(<= ULTIMATE.start_main_~i~5 30), 176302#(<= ULTIMATE.start_main_~i~5 35), 176303#(<= ULTIMATE.start_main_~i~5 36), 176300#(<= ULTIMATE.start_main_~i~5 33), 176301#(<= ULTIMATE.start_main_~i~5 34), 176306#(<= ULTIMATE.start_main_~i~5 39), 176307#(<= ULTIMATE.start_main_~i~5 40), 176304#(<= ULTIMATE.start_main_~i~5 37), 176305#(<= ULTIMATE.start_main_~i~5 38), 176310#(<= ULTIMATE.start_main_~i~5 43), 176311#(<= ULTIMATE.start_main_~i~5 44), 176308#(<= ULTIMATE.start_main_~i~5 41), 176309#(<= ULTIMATE.start_main_~i~5 42), 176314#(<= ULTIMATE.start_main_~i~5 47), 176315#(<= ULTIMATE.start_main_~i~5 48), 176312#(<= ULTIMATE.start_main_~i~5 45), 176313#(<= ULTIMATE.start_main_~i~5 46), 176318#(<= ULTIMATE.start_main_~i~5 51), 176319#(<= ULTIMATE.start_main_~i~5 52), 176316#(<= ULTIMATE.start_main_~i~5 49), 176317#(<= ULTIMATE.start_main_~i~5 50), 176322#(<= ULTIMATE.start_main_~i~5 55), 176323#(<= ULTIMATE.start_main_~i~5 56), 176320#(<= ULTIMATE.start_main_~i~5 53), 176321#(<= ULTIMATE.start_main_~i~5 54), 176326#(<= ULTIMATE.start_main_~i~5 59), 176327#(<= ULTIMATE.start_main_~i~5 60), 176324#(<= ULTIMATE.start_main_~i~5 57), 176325#(<= ULTIMATE.start_main_~i~5 58), 176330#(<= ULTIMATE.start_main_~i~5 63), 176331#(<= ULTIMATE.start_main_~i~5 64), 176328#(<= ULTIMATE.start_main_~i~5 61), 176329#(<= ULTIMATE.start_main_~i~5 62), 176334#(<= ULTIMATE.start_main_~i~5 67), 176335#(<= ULTIMATE.start_main_~i~5 68), 176332#(<= ULTIMATE.start_main_~i~5 65), 176333#(<= ULTIMATE.start_main_~i~5 66), 176338#(<= ULTIMATE.start_main_~i~5 71), 176339#(<= ULTIMATE.start_main_~i~5 72), 176336#(<= ULTIMATE.start_main_~i~5 69), 176337#(<= ULTIMATE.start_main_~i~5 70), 176342#(<= ULTIMATE.start_main_~i~5 75), 176343#(<= ULTIMATE.start_main_~i~5 76), 176340#(<= ULTIMATE.start_main_~i~5 73), 176341#(<= ULTIMATE.start_main_~i~5 74), 176346#(<= ULTIMATE.start_main_~i~5 79), 176347#(<= ULTIMATE.start_main_~i~5 80), 176344#(<= ULTIMATE.start_main_~i~5 77), 176345#(<= ULTIMATE.start_main_~i~5 78), 176350#(<= ULTIMATE.start_main_~i~5 83), 176351#(<= ULTIMATE.start_main_~i~5 84), 176348#(<= ULTIMATE.start_main_~i~5 81), 176349#(<= ULTIMATE.start_main_~i~5 82), 176354#(<= ULTIMATE.start_main_~i~5 87), 176355#(<= ULTIMATE.start_main_~i~5 88), 176352#(<= ULTIMATE.start_main_~i~5 85), 176353#(<= ULTIMATE.start_main_~i~5 86), 176358#(<= ULTIMATE.start_main_~i~5 91), 176359#(<= ULTIMATE.start_main_~i~5 92), 176356#(<= ULTIMATE.start_main_~i~5 89), 176357#(<= ULTIMATE.start_main_~i~5 90), 176362#(<= ULTIMATE.start_main_~i~5 95), 176363#(<= ULTIMATE.start_main_~i~5 96), 176360#(<= ULTIMATE.start_main_~i~5 93), 176361#(<= ULTIMATE.start_main_~i~5 94), 176366#(<= ULTIMATE.start_main_~j~5 98), 176367#(<= ULTIMATE.start_main_~j~5 97), 176364#(<= ULTIMATE.start_main_~i~5 97), 176365#(<= ULTIMATE.start_main_~i~5 98), 176370#(<= ULTIMATE.start_main_~j~5 94), 176371#(<= ULTIMATE.start_main_~j~5 93), 176368#(<= ULTIMATE.start_main_~j~5 96), 176369#(<= ULTIMATE.start_main_~j~5 95), 176374#(<= ULTIMATE.start_main_~j~5 90), 176375#(<= ULTIMATE.start_main_~j~5 89), 176372#(<= ULTIMATE.start_main_~j~5 92), 176373#(<= ULTIMATE.start_main_~j~5 91), 176378#(<= ULTIMATE.start_main_~j~5 86), 176379#(<= ULTIMATE.start_main_~j~5 85), 176376#(<= ULTIMATE.start_main_~j~5 88), 176377#(<= ULTIMATE.start_main_~j~5 87), 176382#(<= ULTIMATE.start_main_~j~5 82), 176383#(<= ULTIMATE.start_main_~j~5 81), 176380#(<= ULTIMATE.start_main_~j~5 84), 176381#(<= ULTIMATE.start_main_~j~5 83), 176386#(<= ULTIMATE.start_main_~j~5 78), 176387#(<= ULTIMATE.start_main_~j~5 77), 176384#(<= ULTIMATE.start_main_~j~5 80), 176385#(<= ULTIMATE.start_main_~j~5 79), 176390#(<= ULTIMATE.start_main_~j~5 74), 176391#(<= ULTIMATE.start_main_~j~5 73), 176388#(<= ULTIMATE.start_main_~j~5 76), 176389#(<= ULTIMATE.start_main_~j~5 75), 176394#(<= ULTIMATE.start_main_~j~5 70), 176395#(<= ULTIMATE.start_main_~j~5 69), 176392#(<= ULTIMATE.start_main_~j~5 72), 176393#(<= ULTIMATE.start_main_~j~5 71), 176398#(<= ULTIMATE.start_main_~j~5 66), 176399#(<= ULTIMATE.start_main_~j~5 65), 176396#(<= ULTIMATE.start_main_~j~5 68), 176397#(<= ULTIMATE.start_main_~j~5 67), 176402#(<= ULTIMATE.start_main_~j~5 62), 176403#(<= ULTIMATE.start_main_~j~5 61), 176400#(<= ULTIMATE.start_main_~j~5 64), 176401#(<= ULTIMATE.start_main_~j~5 63), 176406#(<= ULTIMATE.start_main_~j~5 58), 176407#(<= ULTIMATE.start_main_~j~5 57), 176404#(<= ULTIMATE.start_main_~j~5 60), 176405#(<= ULTIMATE.start_main_~j~5 59), 176410#(<= ULTIMATE.start_main_~j~5 54), 176411#(<= ULTIMATE.start_main_~j~5 53), 176408#(<= ULTIMATE.start_main_~j~5 56), 176409#(<= ULTIMATE.start_main_~j~5 55), 176414#(<= ULTIMATE.start_main_~j~5 50), 176415#(<= ULTIMATE.start_main_~j~5 49), 176412#(<= ULTIMATE.start_main_~j~5 52), 176413#(<= ULTIMATE.start_main_~j~5 51), 176418#(<= ULTIMATE.start_main_~j~5 46), 176419#(<= ULTIMATE.start_main_~j~5 45), 176416#(<= ULTIMATE.start_main_~j~5 48), 176417#(<= ULTIMATE.start_main_~j~5 47), 176422#(<= ULTIMATE.start_main_~j~5 42), 176423#(<= ULTIMATE.start_main_~j~5 41), 176420#(<= ULTIMATE.start_main_~j~5 44), 176421#(<= ULTIMATE.start_main_~j~5 43), 176426#(<= ULTIMATE.start_main_~j~5 38), 176427#(<= ULTIMATE.start_main_~j~5 37), 176424#(<= ULTIMATE.start_main_~j~5 40), 176425#(<= ULTIMATE.start_main_~j~5 39), 176430#(<= ULTIMATE.start_main_~j~5 34), 176431#(<= ULTIMATE.start_main_~j~5 33), 176428#(<= ULTIMATE.start_main_~j~5 36), 176429#(<= ULTIMATE.start_main_~j~5 35), 176434#(<= ULTIMATE.start_main_~j~5 30), 176435#(<= ULTIMATE.start_main_~j~5 29), 176432#(<= ULTIMATE.start_main_~j~5 32), 176433#(<= ULTIMATE.start_main_~j~5 31), 176438#(<= ULTIMATE.start_main_~j~5 26), 176439#(<= ULTIMATE.start_main_~j~5 25), 176436#(<= ULTIMATE.start_main_~j~5 28), 176437#(<= ULTIMATE.start_main_~j~5 27), 176442#(<= ULTIMATE.start_main_~j~5 22), 176443#(<= ULTIMATE.start_main_~j~5 21), 176440#(<= ULTIMATE.start_main_~j~5 24), 176441#(<= ULTIMATE.start_main_~j~5 23), 176446#(<= ULTIMATE.start_main_~j~5 18), 176447#(<= ULTIMATE.start_main_~j~5 17), 176444#(<= ULTIMATE.start_main_~j~5 20), 176445#(<= ULTIMATE.start_main_~j~5 19), 176450#(<= ULTIMATE.start_main_~j~5 14), 176451#(<= ULTIMATE.start_main_~j~5 13), 176448#(<= ULTIMATE.start_main_~j~5 16), 176449#(<= ULTIMATE.start_main_~j~5 15), 176454#(<= ULTIMATE.start_main_~j~5 10), 176455#(<= ULTIMATE.start_main_~j~5 9), 176452#(<= ULTIMATE.start_main_~j~5 12), 176453#(<= ULTIMATE.start_main_~j~5 11), 176458#(<= ULTIMATE.start_main_~j~5 6), 176459#(<= ULTIMATE.start_main_~j~5 5), 176456#(<= ULTIMATE.start_main_~j~5 8), 176457#(<= ULTIMATE.start_main_~j~5 7), 176462#(<= ULTIMATE.start_main_~j~5 2), 176463#(<= ULTIMATE.start_main_~j~5 1), 176460#(<= ULTIMATE.start_main_~j~5 4), 176461#(<= ULTIMATE.start_main_~j~5 3), 176464#(<= ULTIMATE.start_main_~j~5 0)] [2018-07-23 13:43:11,102 INFO L134 CoverageAnalysis]: Checked inductivity of 14553 backedges. 9702 proven. 4851 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:11,102 INFO L450 AbstractCegarLoop]: Interpolant automaton has 200 states [2018-07-23 13:43:11,103 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 200 interpolants. [2018-07-23 13:43:11,104 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10099, Invalid=29701, Unknown=0, NotChecked=0, Total=39800 [2018-07-23 13:43:11,104 INFO L87 Difference]: Start difference. First operand 300 states and 301 transitions. Second operand 200 states. [2018-07-23 13:43:13,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:43:13,530 INFO L93 Difference]: Finished difference Result 502 states and 504 transitions. [2018-07-23 13:43:13,530 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 200 states. [2018-07-23 13:43:13,530 INFO L78 Accepts]: Start accepts. Automaton has 200 states. Word has length 299 [2018-07-23 13:43:13,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:43:13,530 INFO L225 Difference]: With dead ends: 502 [2018-07-23 13:43:13,530 INFO L226 Difference]: Without dead ends: 301 [2018-07-23 13:43:13,535 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 297 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14455 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=20197, Invalid=68905, Unknown=0, NotChecked=0, Total=89102 [2018-07-23 13:43:13,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2018-07-23 13:43:13,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 301. [2018-07-23 13:43:13,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301 states. [2018-07-23 13:43:13,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 302 transitions. [2018-07-23 13:43:13,571 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 302 transitions. Word has length 299 [2018-07-23 13:43:13,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:43:13,572 INFO L471 AbstractCegarLoop]: Abstraction has 301 states and 302 transitions. [2018-07-23 13:43:13,572 INFO L472 AbstractCegarLoop]: Interpolant automaton has 200 states. [2018-07-23 13:43:13,572 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 302 transitions. [2018-07-23 13:43:13,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2018-07-23 13:43:13,572 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:43:13,573 INFO L357 BasicCegarLoop]: trace histogram [99, 99, 98, 1, 1, 1, 1] [2018-07-23 13:43:13,573 INFO L414 AbstractCegarLoop]: === Iteration 198 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:43:13,573 INFO L82 PathProgramCache]: Analyzing trace with hash -1572207790, now seen corresponding path program 196 times [2018-07-23 13:43:13,573 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:43:13,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:43:14,107 INFO L134 CoverageAnalysis]: Checked inductivity of 14652 backedges. 4950 proven. 9702 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:14,108 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:43:14,108 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [102] total 102 [2018-07-23 13:43:14,108 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:43:14,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:14,109 INFO L185 omatonBuilderFactory]: Interpolants [178270#false, 178271#(<= 0 ULTIMATE.start_main_~k~5), 178269#true, 178274#(<= 3 ULTIMATE.start_main_~k~5), 178275#(<= 4 ULTIMATE.start_main_~k~5), 178272#(<= 1 ULTIMATE.start_main_~k~5), 178273#(<= 2 ULTIMATE.start_main_~k~5), 178278#(<= 7 ULTIMATE.start_main_~k~5), 178279#(<= 8 ULTIMATE.start_main_~k~5), 178276#(<= 5 ULTIMATE.start_main_~k~5), 178277#(<= 6 ULTIMATE.start_main_~k~5), 178282#(<= 11 ULTIMATE.start_main_~k~5), 178283#(<= 12 ULTIMATE.start_main_~k~5), 178280#(<= 9 ULTIMATE.start_main_~k~5), 178281#(<= 10 ULTIMATE.start_main_~k~5), 178286#(<= 15 ULTIMATE.start_main_~k~5), 178287#(<= 16 ULTIMATE.start_main_~k~5), 178284#(<= 13 ULTIMATE.start_main_~k~5), 178285#(<= 14 ULTIMATE.start_main_~k~5), 178290#(<= 19 ULTIMATE.start_main_~k~5), 178291#(<= 20 ULTIMATE.start_main_~k~5), 178288#(<= 17 ULTIMATE.start_main_~k~5), 178289#(<= 18 ULTIMATE.start_main_~k~5), 178294#(<= 23 ULTIMATE.start_main_~k~5), 178295#(<= 24 ULTIMATE.start_main_~k~5), 178292#(<= 21 ULTIMATE.start_main_~k~5), 178293#(<= 22 ULTIMATE.start_main_~k~5), 178298#(<= 27 ULTIMATE.start_main_~k~5), 178299#(<= 28 ULTIMATE.start_main_~k~5), 178296#(<= 25 ULTIMATE.start_main_~k~5), 178297#(<= 26 ULTIMATE.start_main_~k~5), 178302#(<= 31 ULTIMATE.start_main_~k~5), 178303#(<= 32 ULTIMATE.start_main_~k~5), 178300#(<= 29 ULTIMATE.start_main_~k~5), 178301#(<= 30 ULTIMATE.start_main_~k~5), 178306#(<= 35 ULTIMATE.start_main_~k~5), 178307#(<= 36 ULTIMATE.start_main_~k~5), 178304#(<= 33 ULTIMATE.start_main_~k~5), 178305#(<= 34 ULTIMATE.start_main_~k~5), 178310#(<= 39 ULTIMATE.start_main_~k~5), 178311#(<= 40 ULTIMATE.start_main_~k~5), 178308#(<= 37 ULTIMATE.start_main_~k~5), 178309#(<= 38 ULTIMATE.start_main_~k~5), 178314#(<= 43 ULTIMATE.start_main_~k~5), 178315#(<= 44 ULTIMATE.start_main_~k~5), 178312#(<= 41 ULTIMATE.start_main_~k~5), 178313#(<= 42 ULTIMATE.start_main_~k~5), 178318#(<= 47 ULTIMATE.start_main_~k~5), 178319#(<= 48 ULTIMATE.start_main_~k~5), 178316#(<= 45 ULTIMATE.start_main_~k~5), 178317#(<= 46 ULTIMATE.start_main_~k~5), 178322#(<= 51 ULTIMATE.start_main_~k~5), 178323#(<= 52 ULTIMATE.start_main_~k~5), 178320#(<= 49 ULTIMATE.start_main_~k~5), 178321#(<= 50 ULTIMATE.start_main_~k~5), 178326#(<= 55 ULTIMATE.start_main_~k~5), 178327#(<= 56 ULTIMATE.start_main_~k~5), 178324#(<= 53 ULTIMATE.start_main_~k~5), 178325#(<= 54 ULTIMATE.start_main_~k~5), 178330#(<= 59 ULTIMATE.start_main_~k~5), 178331#(<= 60 ULTIMATE.start_main_~k~5), 178328#(<= 57 ULTIMATE.start_main_~k~5), 178329#(<= 58 ULTIMATE.start_main_~k~5), 178334#(<= 63 ULTIMATE.start_main_~k~5), 178335#(<= 64 ULTIMATE.start_main_~k~5), 178332#(<= 61 ULTIMATE.start_main_~k~5), 178333#(<= 62 ULTIMATE.start_main_~k~5), 178338#(<= 67 ULTIMATE.start_main_~k~5), 178339#(<= 68 ULTIMATE.start_main_~k~5), 178336#(<= 65 ULTIMATE.start_main_~k~5), 178337#(<= 66 ULTIMATE.start_main_~k~5), 178342#(<= 71 ULTIMATE.start_main_~k~5), 178343#(<= 72 ULTIMATE.start_main_~k~5), 178340#(<= 69 ULTIMATE.start_main_~k~5), 178341#(<= 70 ULTIMATE.start_main_~k~5), 178346#(<= 75 ULTIMATE.start_main_~k~5), 178347#(<= 76 ULTIMATE.start_main_~k~5), 178344#(<= 73 ULTIMATE.start_main_~k~5), 178345#(<= 74 ULTIMATE.start_main_~k~5), 178350#(<= 79 ULTIMATE.start_main_~k~5), 178351#(<= 80 ULTIMATE.start_main_~k~5), 178348#(<= 77 ULTIMATE.start_main_~k~5), 178349#(<= 78 ULTIMATE.start_main_~k~5), 178354#(<= 83 ULTIMATE.start_main_~k~5), 178355#(<= 84 ULTIMATE.start_main_~k~5), 178352#(<= 81 ULTIMATE.start_main_~k~5), 178353#(<= 82 ULTIMATE.start_main_~k~5), 178358#(<= 87 ULTIMATE.start_main_~k~5), 178359#(<= 88 ULTIMATE.start_main_~k~5), 178356#(<= 85 ULTIMATE.start_main_~k~5), 178357#(<= 86 ULTIMATE.start_main_~k~5), 178362#(<= 91 ULTIMATE.start_main_~k~5), 178363#(<= 92 ULTIMATE.start_main_~k~5), 178360#(<= 89 ULTIMATE.start_main_~k~5), 178361#(<= 90 ULTIMATE.start_main_~k~5), 178366#(<= 95 ULTIMATE.start_main_~k~5), 178367#(<= 96 ULTIMATE.start_main_~k~5), 178364#(<= 93 ULTIMATE.start_main_~k~5), 178365#(<= 94 ULTIMATE.start_main_~k~5), 178370#(<= 99 ULTIMATE.start_main_~k~5), 178371#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 178368#(<= 97 ULTIMATE.start_main_~k~5), 178369#(<= 98 ULTIMATE.start_main_~k~5)] [2018-07-23 13:43:14,109 INFO L134 CoverageAnalysis]: Checked inductivity of 14652 backedges. 4950 proven. 9702 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:14,109 INFO L450 AbstractCegarLoop]: Interpolant automaton has 103 states [2018-07-23 13:43:14,110 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2018-07-23 13:43:14,110 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5153, Invalid=5353, Unknown=0, NotChecked=0, Total=10506 [2018-07-23 13:43:14,110 INFO L87 Difference]: Start difference. First operand 301 states and 302 transitions. Second operand 103 states. [2018-07-23 13:43:14,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:43:14,493 INFO L93 Difference]: Finished difference Result 309 states and 310 transitions. [2018-07-23 13:43:14,493 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 202 states. [2018-07-23 13:43:14,493 INFO L78 Accepts]: Start accepts. Automaton has 103 states. Word has length 300 [2018-07-23 13:43:14,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:43:14,494 INFO L225 Difference]: With dead ends: 309 [2018-07-23 13:43:14,494 INFO L226 Difference]: Without dead ends: 307 [2018-07-23 13:43:14,496 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 201 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9900 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=15453, Invalid=25553, Unknown=0, NotChecked=0, Total=41006 [2018-07-23 13:43:14,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2018-07-23 13:43:14,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 303. [2018-07-23 13:43:14,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 303 states. [2018-07-23 13:43:14,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 304 transitions. [2018-07-23 13:43:14,583 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 304 transitions. Word has length 300 [2018-07-23 13:43:14,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:43:14,583 INFO L471 AbstractCegarLoop]: Abstraction has 303 states and 304 transitions. [2018-07-23 13:43:14,583 INFO L472 AbstractCegarLoop]: Interpolant automaton has 103 states. [2018-07-23 13:43:14,583 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 304 transitions. [2018-07-23 13:43:14,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2018-07-23 13:43:14,584 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:43:14,584 INFO L357 BasicCegarLoop]: trace histogram [100, 99, 99, 1, 1, 1, 1] [2018-07-23 13:43:14,584 INFO L414 AbstractCegarLoop]: === Iteration 199 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:43:14,584 INFO L82 PathProgramCache]: Analyzing trace with hash 936868026, now seen corresponding path program 197 times [2018-07-23 13:43:14,584 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:43:14,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:43:15,442 INFO L134 CoverageAnalysis]: Checked inductivity of 14850 backedges. 9900 proven. 4950 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:15,442 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:43:15,443 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [201] total 201 [2018-07-23 13:43:15,443 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:43:15,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:15,443 INFO L185 omatonBuilderFactory]: Interpolants [179798#(<= ULTIMATE.start_main_~i~5 0), 179799#(<= ULTIMATE.start_main_~i~5 1), 179796#true, 179797#false, 179802#(<= ULTIMATE.start_main_~i~5 4), 179803#(<= ULTIMATE.start_main_~i~5 5), 179800#(<= ULTIMATE.start_main_~i~5 2), 179801#(<= ULTIMATE.start_main_~i~5 3), 179806#(<= ULTIMATE.start_main_~i~5 8), 179807#(<= ULTIMATE.start_main_~i~5 9), 179804#(<= ULTIMATE.start_main_~i~5 6), 179805#(<= ULTIMATE.start_main_~i~5 7), 179810#(<= ULTIMATE.start_main_~i~5 12), 179811#(<= ULTIMATE.start_main_~i~5 13), 179808#(<= ULTIMATE.start_main_~i~5 10), 179809#(<= ULTIMATE.start_main_~i~5 11), 179814#(<= ULTIMATE.start_main_~i~5 16), 179815#(<= ULTIMATE.start_main_~i~5 17), 179812#(<= ULTIMATE.start_main_~i~5 14), 179813#(<= ULTIMATE.start_main_~i~5 15), 179818#(<= ULTIMATE.start_main_~i~5 20), 179819#(<= ULTIMATE.start_main_~i~5 21), 179816#(<= ULTIMATE.start_main_~i~5 18), 179817#(<= ULTIMATE.start_main_~i~5 19), 179822#(<= ULTIMATE.start_main_~i~5 24), 179823#(<= ULTIMATE.start_main_~i~5 25), 179820#(<= ULTIMATE.start_main_~i~5 22), 179821#(<= ULTIMATE.start_main_~i~5 23), 179826#(<= ULTIMATE.start_main_~i~5 28), 179827#(<= ULTIMATE.start_main_~i~5 29), 179824#(<= ULTIMATE.start_main_~i~5 26), 179825#(<= ULTIMATE.start_main_~i~5 27), 179830#(<= ULTIMATE.start_main_~i~5 32), 179831#(<= ULTIMATE.start_main_~i~5 33), 179828#(<= ULTIMATE.start_main_~i~5 30), 179829#(<= ULTIMATE.start_main_~i~5 31), 179834#(<= ULTIMATE.start_main_~i~5 36), 179835#(<= ULTIMATE.start_main_~i~5 37), 179832#(<= ULTIMATE.start_main_~i~5 34), 179833#(<= ULTIMATE.start_main_~i~5 35), 179838#(<= ULTIMATE.start_main_~i~5 40), 179839#(<= ULTIMATE.start_main_~i~5 41), 179836#(<= ULTIMATE.start_main_~i~5 38), 179837#(<= ULTIMATE.start_main_~i~5 39), 179842#(<= ULTIMATE.start_main_~i~5 44), 179843#(<= ULTIMATE.start_main_~i~5 45), 179840#(<= ULTIMATE.start_main_~i~5 42), 179841#(<= ULTIMATE.start_main_~i~5 43), 179846#(<= ULTIMATE.start_main_~i~5 48), 179847#(<= ULTIMATE.start_main_~i~5 49), 179844#(<= ULTIMATE.start_main_~i~5 46), 179845#(<= ULTIMATE.start_main_~i~5 47), 179850#(<= ULTIMATE.start_main_~i~5 52), 179851#(<= ULTIMATE.start_main_~i~5 53), 179848#(<= ULTIMATE.start_main_~i~5 50), 179849#(<= ULTIMATE.start_main_~i~5 51), 179854#(<= ULTIMATE.start_main_~i~5 56), 179855#(<= ULTIMATE.start_main_~i~5 57), 179852#(<= ULTIMATE.start_main_~i~5 54), 179853#(<= ULTIMATE.start_main_~i~5 55), 179858#(<= ULTIMATE.start_main_~i~5 60), 179859#(<= ULTIMATE.start_main_~i~5 61), 179856#(<= ULTIMATE.start_main_~i~5 58), 179857#(<= ULTIMATE.start_main_~i~5 59), 179862#(<= ULTIMATE.start_main_~i~5 64), 179863#(<= ULTIMATE.start_main_~i~5 65), 179860#(<= ULTIMATE.start_main_~i~5 62), 179861#(<= ULTIMATE.start_main_~i~5 63), 179866#(<= ULTIMATE.start_main_~i~5 68), 179867#(<= ULTIMATE.start_main_~i~5 69), 179864#(<= ULTIMATE.start_main_~i~5 66), 179865#(<= ULTIMATE.start_main_~i~5 67), 179870#(<= ULTIMATE.start_main_~i~5 72), 179871#(<= ULTIMATE.start_main_~i~5 73), 179868#(<= ULTIMATE.start_main_~i~5 70), 179869#(<= ULTIMATE.start_main_~i~5 71), 179874#(<= ULTIMATE.start_main_~i~5 76), 179875#(<= ULTIMATE.start_main_~i~5 77), 179872#(<= ULTIMATE.start_main_~i~5 74), 179873#(<= ULTIMATE.start_main_~i~5 75), 179878#(<= ULTIMATE.start_main_~i~5 80), 179879#(<= ULTIMATE.start_main_~i~5 81), 179876#(<= ULTIMATE.start_main_~i~5 78), 179877#(<= ULTIMATE.start_main_~i~5 79), 179882#(<= ULTIMATE.start_main_~i~5 84), 179883#(<= ULTIMATE.start_main_~i~5 85), 179880#(<= ULTIMATE.start_main_~i~5 82), 179881#(<= ULTIMATE.start_main_~i~5 83), 179886#(<= ULTIMATE.start_main_~i~5 88), 179887#(<= ULTIMATE.start_main_~i~5 89), 179884#(<= ULTIMATE.start_main_~i~5 86), 179885#(<= ULTIMATE.start_main_~i~5 87), 179890#(<= ULTIMATE.start_main_~i~5 92), 179891#(<= ULTIMATE.start_main_~i~5 93), 179888#(<= ULTIMATE.start_main_~i~5 90), 179889#(<= ULTIMATE.start_main_~i~5 91), 179894#(<= ULTIMATE.start_main_~i~5 96), 179895#(<= ULTIMATE.start_main_~i~5 97), 179892#(<= ULTIMATE.start_main_~i~5 94), 179893#(<= ULTIMATE.start_main_~i~5 95), 179898#(<= ULTIMATE.start_main_~j~5 99), 179899#(<= ULTIMATE.start_main_~j~5 98), 179896#(<= ULTIMATE.start_main_~i~5 98), 179897#(<= ULTIMATE.start_main_~i~5 99), 179902#(<= ULTIMATE.start_main_~j~5 95), 179903#(<= ULTIMATE.start_main_~j~5 94), 179900#(<= ULTIMATE.start_main_~j~5 97), 179901#(<= ULTIMATE.start_main_~j~5 96), 179906#(<= ULTIMATE.start_main_~j~5 91), 179907#(<= ULTIMATE.start_main_~j~5 90), 179904#(<= ULTIMATE.start_main_~j~5 93), 179905#(<= ULTIMATE.start_main_~j~5 92), 179910#(<= ULTIMATE.start_main_~j~5 87), 179911#(<= ULTIMATE.start_main_~j~5 86), 179908#(<= ULTIMATE.start_main_~j~5 89), 179909#(<= ULTIMATE.start_main_~j~5 88), 179914#(<= ULTIMATE.start_main_~j~5 83), 179915#(<= ULTIMATE.start_main_~j~5 82), 179912#(<= ULTIMATE.start_main_~j~5 85), 179913#(<= ULTIMATE.start_main_~j~5 84), 179918#(<= ULTIMATE.start_main_~j~5 79), 179919#(<= ULTIMATE.start_main_~j~5 78), 179916#(<= ULTIMATE.start_main_~j~5 81), 179917#(<= ULTIMATE.start_main_~j~5 80), 179922#(<= ULTIMATE.start_main_~j~5 75), 179923#(<= ULTIMATE.start_main_~j~5 74), 179920#(<= ULTIMATE.start_main_~j~5 77), 179921#(<= ULTIMATE.start_main_~j~5 76), 179926#(<= ULTIMATE.start_main_~j~5 71), 179927#(<= ULTIMATE.start_main_~j~5 70), 179924#(<= ULTIMATE.start_main_~j~5 73), 179925#(<= ULTIMATE.start_main_~j~5 72), 179930#(<= ULTIMATE.start_main_~j~5 67), 179931#(<= ULTIMATE.start_main_~j~5 66), 179928#(<= ULTIMATE.start_main_~j~5 69), 179929#(<= ULTIMATE.start_main_~j~5 68), 179934#(<= ULTIMATE.start_main_~j~5 63), 179935#(<= ULTIMATE.start_main_~j~5 62), 179932#(<= ULTIMATE.start_main_~j~5 65), 179933#(<= ULTIMATE.start_main_~j~5 64), 179938#(<= ULTIMATE.start_main_~j~5 59), 179939#(<= ULTIMATE.start_main_~j~5 58), 179936#(<= ULTIMATE.start_main_~j~5 61), 179937#(<= ULTIMATE.start_main_~j~5 60), 179942#(<= ULTIMATE.start_main_~j~5 55), 179943#(<= ULTIMATE.start_main_~j~5 54), 179940#(<= ULTIMATE.start_main_~j~5 57), 179941#(<= ULTIMATE.start_main_~j~5 56), 179946#(<= ULTIMATE.start_main_~j~5 51), 179947#(<= ULTIMATE.start_main_~j~5 50), 179944#(<= ULTIMATE.start_main_~j~5 53), 179945#(<= ULTIMATE.start_main_~j~5 52), 179950#(<= ULTIMATE.start_main_~j~5 47), 179951#(<= ULTIMATE.start_main_~j~5 46), 179948#(<= ULTIMATE.start_main_~j~5 49), 179949#(<= ULTIMATE.start_main_~j~5 48), 179954#(<= ULTIMATE.start_main_~j~5 43), 179955#(<= ULTIMATE.start_main_~j~5 42), 179952#(<= ULTIMATE.start_main_~j~5 45), 179953#(<= ULTIMATE.start_main_~j~5 44), 179958#(<= ULTIMATE.start_main_~j~5 39), 179959#(<= ULTIMATE.start_main_~j~5 38), 179956#(<= ULTIMATE.start_main_~j~5 41), 179957#(<= ULTIMATE.start_main_~j~5 40), 179962#(<= ULTIMATE.start_main_~j~5 35), 179963#(<= ULTIMATE.start_main_~j~5 34), 179960#(<= ULTIMATE.start_main_~j~5 37), 179961#(<= ULTIMATE.start_main_~j~5 36), 179966#(<= ULTIMATE.start_main_~j~5 31), 179967#(<= ULTIMATE.start_main_~j~5 30), 179964#(<= ULTIMATE.start_main_~j~5 33), 179965#(<= ULTIMATE.start_main_~j~5 32), 179970#(<= ULTIMATE.start_main_~j~5 27), 179971#(<= ULTIMATE.start_main_~j~5 26), 179968#(<= ULTIMATE.start_main_~j~5 29), 179969#(<= ULTIMATE.start_main_~j~5 28), 179974#(<= ULTIMATE.start_main_~j~5 23), 179975#(<= ULTIMATE.start_main_~j~5 22), 179972#(<= ULTIMATE.start_main_~j~5 25), 179973#(<= ULTIMATE.start_main_~j~5 24), 179978#(<= ULTIMATE.start_main_~j~5 19), 179979#(<= ULTIMATE.start_main_~j~5 18), 179976#(<= ULTIMATE.start_main_~j~5 21), 179977#(<= ULTIMATE.start_main_~j~5 20), 179982#(<= ULTIMATE.start_main_~j~5 15), 179983#(<= ULTIMATE.start_main_~j~5 14), 179980#(<= ULTIMATE.start_main_~j~5 17), 179981#(<= ULTIMATE.start_main_~j~5 16), 179986#(<= ULTIMATE.start_main_~j~5 11), 179987#(<= ULTIMATE.start_main_~j~5 10), 179984#(<= ULTIMATE.start_main_~j~5 13), 179985#(<= ULTIMATE.start_main_~j~5 12), 179990#(<= ULTIMATE.start_main_~j~5 7), 179991#(<= ULTIMATE.start_main_~j~5 6), 179988#(<= ULTIMATE.start_main_~j~5 9), 179989#(<= ULTIMATE.start_main_~j~5 8), 179994#(<= ULTIMATE.start_main_~j~5 3), 179995#(<= ULTIMATE.start_main_~j~5 2), 179992#(<= ULTIMATE.start_main_~j~5 5), 179993#(<= ULTIMATE.start_main_~j~5 4), 179996#(<= ULTIMATE.start_main_~j~5 1), 179997#(<= ULTIMATE.start_main_~j~5 0)] [2018-07-23 13:43:15,444 INFO L134 CoverageAnalysis]: Checked inductivity of 14850 backedges. 9900 proven. 4950 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:15,445 INFO L450 AbstractCegarLoop]: Interpolant automaton has 202 states [2018-07-23 13:43:15,446 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 202 interpolants. [2018-07-23 13:43:15,448 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10301, Invalid=30301, Unknown=0, NotChecked=0, Total=40602 [2018-07-23 13:43:15,448 INFO L87 Difference]: Start difference. First operand 303 states and 304 transitions. Second operand 202 states. [2018-07-23 13:43:17,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:43:17,852 INFO L93 Difference]: Finished difference Result 507 states and 509 transitions. [2018-07-23 13:43:17,852 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 202 states. [2018-07-23 13:43:17,852 INFO L78 Accepts]: Start accepts. Automaton has 202 states. Word has length 302 [2018-07-23 13:43:17,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:43:17,852 INFO L225 Difference]: With dead ends: 507 [2018-07-23 13:43:17,853 INFO L226 Difference]: Without dead ends: 304 [2018-07-23 13:43:17,857 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 300 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14751 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=20601, Invalid=70301, Unknown=0, NotChecked=0, Total=90902 [2018-07-23 13:43:17,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2018-07-23 13:43:17,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2018-07-23 13:43:17,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2018-07-23 13:43:17,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 305 transitions. [2018-07-23 13:43:17,896 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 305 transitions. Word has length 302 [2018-07-23 13:43:17,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:43:17,896 INFO L471 AbstractCegarLoop]: Abstraction has 304 states and 305 transitions. [2018-07-23 13:43:17,896 INFO L472 AbstractCegarLoop]: Interpolant automaton has 202 states. [2018-07-23 13:43:17,896 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 305 transitions. [2018-07-23 13:43:17,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2018-07-23 13:43:17,897 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:43:17,897 INFO L357 BasicCegarLoop]: trace histogram [100, 100, 99, 1, 1, 1, 1] [2018-07-23 13:43:17,897 INFO L414 AbstractCegarLoop]: === Iteration 200 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:43:17,898 INFO L82 PathProgramCache]: Analyzing trace with hash -661350285, now seen corresponding path program 198 times [2018-07-23 13:43:17,898 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:43:18,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:43:18,414 INFO L134 CoverageAnalysis]: Checked inductivity of 14950 backedges. 5050 proven. 9900 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:18,414 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:43:18,414 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [103] total 103 [2018-07-23 13:43:18,415 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:43:18,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:18,415 INFO L185 omatonBuilderFactory]: Interpolants [181822#(<= 0 ULTIMATE.start_main_~k~5), 181823#(<= 1 ULTIMATE.start_main_~k~5), 181820#true, 181821#false, 181826#(<= 4 ULTIMATE.start_main_~k~5), 181827#(<= 5 ULTIMATE.start_main_~k~5), 181824#(<= 2 ULTIMATE.start_main_~k~5), 181825#(<= 3 ULTIMATE.start_main_~k~5), 181830#(<= 8 ULTIMATE.start_main_~k~5), 181831#(<= 9 ULTIMATE.start_main_~k~5), 181828#(<= 6 ULTIMATE.start_main_~k~5), 181829#(<= 7 ULTIMATE.start_main_~k~5), 181834#(<= 12 ULTIMATE.start_main_~k~5), 181835#(<= 13 ULTIMATE.start_main_~k~5), 181832#(<= 10 ULTIMATE.start_main_~k~5), 181833#(<= 11 ULTIMATE.start_main_~k~5), 181838#(<= 16 ULTIMATE.start_main_~k~5), 181839#(<= 17 ULTIMATE.start_main_~k~5), 181836#(<= 14 ULTIMATE.start_main_~k~5), 181837#(<= 15 ULTIMATE.start_main_~k~5), 181842#(<= 20 ULTIMATE.start_main_~k~5), 181843#(<= 21 ULTIMATE.start_main_~k~5), 181840#(<= 18 ULTIMATE.start_main_~k~5), 181841#(<= 19 ULTIMATE.start_main_~k~5), 181846#(<= 24 ULTIMATE.start_main_~k~5), 181847#(<= 25 ULTIMATE.start_main_~k~5), 181844#(<= 22 ULTIMATE.start_main_~k~5), 181845#(<= 23 ULTIMATE.start_main_~k~5), 181850#(<= 28 ULTIMATE.start_main_~k~5), 181851#(<= 29 ULTIMATE.start_main_~k~5), 181848#(<= 26 ULTIMATE.start_main_~k~5), 181849#(<= 27 ULTIMATE.start_main_~k~5), 181854#(<= 32 ULTIMATE.start_main_~k~5), 181855#(<= 33 ULTIMATE.start_main_~k~5), 181852#(<= 30 ULTIMATE.start_main_~k~5), 181853#(<= 31 ULTIMATE.start_main_~k~5), 181858#(<= 36 ULTIMATE.start_main_~k~5), 181859#(<= 37 ULTIMATE.start_main_~k~5), 181856#(<= 34 ULTIMATE.start_main_~k~5), 181857#(<= 35 ULTIMATE.start_main_~k~5), 181862#(<= 40 ULTIMATE.start_main_~k~5), 181863#(<= 41 ULTIMATE.start_main_~k~5), 181860#(<= 38 ULTIMATE.start_main_~k~5), 181861#(<= 39 ULTIMATE.start_main_~k~5), 181866#(<= 44 ULTIMATE.start_main_~k~5), 181867#(<= 45 ULTIMATE.start_main_~k~5), 181864#(<= 42 ULTIMATE.start_main_~k~5), 181865#(<= 43 ULTIMATE.start_main_~k~5), 181870#(<= 48 ULTIMATE.start_main_~k~5), 181871#(<= 49 ULTIMATE.start_main_~k~5), 181868#(<= 46 ULTIMATE.start_main_~k~5), 181869#(<= 47 ULTIMATE.start_main_~k~5), 181874#(<= 52 ULTIMATE.start_main_~k~5), 181875#(<= 53 ULTIMATE.start_main_~k~5), 181872#(<= 50 ULTIMATE.start_main_~k~5), 181873#(<= 51 ULTIMATE.start_main_~k~5), 181878#(<= 56 ULTIMATE.start_main_~k~5), 181879#(<= 57 ULTIMATE.start_main_~k~5), 181876#(<= 54 ULTIMATE.start_main_~k~5), 181877#(<= 55 ULTIMATE.start_main_~k~5), 181882#(<= 60 ULTIMATE.start_main_~k~5), 181883#(<= 61 ULTIMATE.start_main_~k~5), 181880#(<= 58 ULTIMATE.start_main_~k~5), 181881#(<= 59 ULTIMATE.start_main_~k~5), 181886#(<= 64 ULTIMATE.start_main_~k~5), 181887#(<= 65 ULTIMATE.start_main_~k~5), 181884#(<= 62 ULTIMATE.start_main_~k~5), 181885#(<= 63 ULTIMATE.start_main_~k~5), 181890#(<= 68 ULTIMATE.start_main_~k~5), 181891#(<= 69 ULTIMATE.start_main_~k~5), 181888#(<= 66 ULTIMATE.start_main_~k~5), 181889#(<= 67 ULTIMATE.start_main_~k~5), 181894#(<= 72 ULTIMATE.start_main_~k~5), 181895#(<= 73 ULTIMATE.start_main_~k~5), 181892#(<= 70 ULTIMATE.start_main_~k~5), 181893#(<= 71 ULTIMATE.start_main_~k~5), 181898#(<= 76 ULTIMATE.start_main_~k~5), 181899#(<= 77 ULTIMATE.start_main_~k~5), 181896#(<= 74 ULTIMATE.start_main_~k~5), 181897#(<= 75 ULTIMATE.start_main_~k~5), 181902#(<= 80 ULTIMATE.start_main_~k~5), 181903#(<= 81 ULTIMATE.start_main_~k~5), 181900#(<= 78 ULTIMATE.start_main_~k~5), 181901#(<= 79 ULTIMATE.start_main_~k~5), 181906#(<= 84 ULTIMATE.start_main_~k~5), 181907#(<= 85 ULTIMATE.start_main_~k~5), 181904#(<= 82 ULTIMATE.start_main_~k~5), 181905#(<= 83 ULTIMATE.start_main_~k~5), 181910#(<= 88 ULTIMATE.start_main_~k~5), 181911#(<= 89 ULTIMATE.start_main_~k~5), 181908#(<= 86 ULTIMATE.start_main_~k~5), 181909#(<= 87 ULTIMATE.start_main_~k~5), 181914#(<= 92 ULTIMATE.start_main_~k~5), 181915#(<= 93 ULTIMATE.start_main_~k~5), 181912#(<= 90 ULTIMATE.start_main_~k~5), 181913#(<= 91 ULTIMATE.start_main_~k~5), 181918#(<= 96 ULTIMATE.start_main_~k~5), 181919#(<= 97 ULTIMATE.start_main_~k~5), 181916#(<= 94 ULTIMATE.start_main_~k~5), 181917#(<= 95 ULTIMATE.start_main_~k~5), 181922#(<= 100 ULTIMATE.start_main_~k~5), 181923#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 181920#(<= 98 ULTIMATE.start_main_~k~5), 181921#(<= 99 ULTIMATE.start_main_~k~5)] [2018-07-23 13:43:18,416 INFO L134 CoverageAnalysis]: Checked inductivity of 14950 backedges. 5050 proven. 9900 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:18,416 INFO L450 AbstractCegarLoop]: Interpolant automaton has 104 states [2018-07-23 13:43:18,416 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 104 interpolants. [2018-07-23 13:43:18,417 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5255, Invalid=5457, Unknown=0, NotChecked=0, Total=10712 [2018-07-23 13:43:18,417 INFO L87 Difference]: Start difference. First operand 304 states and 305 transitions. Second operand 104 states. [2018-07-23 13:43:18,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:43:18,852 INFO L93 Difference]: Finished difference Result 312 states and 313 transitions. [2018-07-23 13:43:18,852 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 204 states. [2018-07-23 13:43:18,852 INFO L78 Accepts]: Start accepts. Automaton has 104 states. Word has length 303 [2018-07-23 13:43:18,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:43:18,853 INFO L225 Difference]: With dead ends: 312 [2018-07-23 13:43:18,853 INFO L226 Difference]: Without dead ends: 310 [2018-07-23 13:43:18,855 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 203 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10100 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=15759, Invalid=26061, Unknown=0, NotChecked=0, Total=41820 [2018-07-23 13:43:18,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2018-07-23 13:43:18,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 306. [2018-07-23 13:43:18,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306 states. [2018-07-23 13:43:18,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 307 transitions. [2018-07-23 13:43:18,954 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 307 transitions. Word has length 303 [2018-07-23 13:43:18,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:43:18,955 INFO L471 AbstractCegarLoop]: Abstraction has 306 states and 307 transitions. [2018-07-23 13:43:18,955 INFO L472 AbstractCegarLoop]: Interpolant automaton has 104 states. [2018-07-23 13:43:18,955 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 307 transitions. [2018-07-23 13:43:18,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2018-07-23 13:43:18,956 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:43:18,956 INFO L357 BasicCegarLoop]: trace histogram [101, 100, 100, 1, 1, 1, 1] [2018-07-23 13:43:18,956 INFO L414 AbstractCegarLoop]: === Iteration 201 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:43:18,956 INFO L82 PathProgramCache]: Analyzing trace with hash 97601947, now seen corresponding path program 199 times [2018-07-23 13:43:18,956 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:43:19,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:43:19,833 INFO L134 CoverageAnalysis]: Checked inductivity of 15150 backedges. 10100 proven. 5050 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:19,833 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:43:19,833 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [203] total 203 [2018-07-23 13:43:19,833 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:43:19,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:19,834 INFO L185 omatonBuilderFactory]: Interpolants [183362#true, 183363#false, 183366#(<= ULTIMATE.start_main_~i~5 2), 183367#(<= ULTIMATE.start_main_~i~5 3), 183364#(<= ULTIMATE.start_main_~i~5 0), 183365#(<= ULTIMATE.start_main_~i~5 1), 183370#(<= ULTIMATE.start_main_~i~5 6), 183371#(<= ULTIMATE.start_main_~i~5 7), 183368#(<= ULTIMATE.start_main_~i~5 4), 183369#(<= ULTIMATE.start_main_~i~5 5), 183374#(<= ULTIMATE.start_main_~i~5 10), 183375#(<= ULTIMATE.start_main_~i~5 11), 183372#(<= ULTIMATE.start_main_~i~5 8), 183373#(<= ULTIMATE.start_main_~i~5 9), 183378#(<= ULTIMATE.start_main_~i~5 14), 183379#(<= ULTIMATE.start_main_~i~5 15), 183376#(<= ULTIMATE.start_main_~i~5 12), 183377#(<= ULTIMATE.start_main_~i~5 13), 183382#(<= ULTIMATE.start_main_~i~5 18), 183383#(<= ULTIMATE.start_main_~i~5 19), 183380#(<= ULTIMATE.start_main_~i~5 16), 183381#(<= ULTIMATE.start_main_~i~5 17), 183386#(<= ULTIMATE.start_main_~i~5 22), 183387#(<= ULTIMATE.start_main_~i~5 23), 183384#(<= ULTIMATE.start_main_~i~5 20), 183385#(<= ULTIMATE.start_main_~i~5 21), 183390#(<= ULTIMATE.start_main_~i~5 26), 183391#(<= ULTIMATE.start_main_~i~5 27), 183388#(<= ULTIMATE.start_main_~i~5 24), 183389#(<= ULTIMATE.start_main_~i~5 25), 183394#(<= ULTIMATE.start_main_~i~5 30), 183395#(<= ULTIMATE.start_main_~i~5 31), 183392#(<= ULTIMATE.start_main_~i~5 28), 183393#(<= ULTIMATE.start_main_~i~5 29), 183398#(<= ULTIMATE.start_main_~i~5 34), 183399#(<= ULTIMATE.start_main_~i~5 35), 183396#(<= ULTIMATE.start_main_~i~5 32), 183397#(<= ULTIMATE.start_main_~i~5 33), 183402#(<= ULTIMATE.start_main_~i~5 38), 183403#(<= ULTIMATE.start_main_~i~5 39), 183400#(<= ULTIMATE.start_main_~i~5 36), 183401#(<= ULTIMATE.start_main_~i~5 37), 183406#(<= ULTIMATE.start_main_~i~5 42), 183407#(<= ULTIMATE.start_main_~i~5 43), 183404#(<= ULTIMATE.start_main_~i~5 40), 183405#(<= ULTIMATE.start_main_~i~5 41), 183410#(<= ULTIMATE.start_main_~i~5 46), 183411#(<= ULTIMATE.start_main_~i~5 47), 183408#(<= ULTIMATE.start_main_~i~5 44), 183409#(<= ULTIMATE.start_main_~i~5 45), 183414#(<= ULTIMATE.start_main_~i~5 50), 183415#(<= ULTIMATE.start_main_~i~5 51), 183412#(<= ULTIMATE.start_main_~i~5 48), 183413#(<= ULTIMATE.start_main_~i~5 49), 183418#(<= ULTIMATE.start_main_~i~5 54), 183419#(<= ULTIMATE.start_main_~i~5 55), 183416#(<= ULTIMATE.start_main_~i~5 52), 183417#(<= ULTIMATE.start_main_~i~5 53), 183422#(<= ULTIMATE.start_main_~i~5 58), 183423#(<= ULTIMATE.start_main_~i~5 59), 183420#(<= ULTIMATE.start_main_~i~5 56), 183421#(<= ULTIMATE.start_main_~i~5 57), 183426#(<= ULTIMATE.start_main_~i~5 62), 183427#(<= ULTIMATE.start_main_~i~5 63), 183424#(<= ULTIMATE.start_main_~i~5 60), 183425#(<= ULTIMATE.start_main_~i~5 61), 183430#(<= ULTIMATE.start_main_~i~5 66), 183431#(<= ULTIMATE.start_main_~i~5 67), 183428#(<= ULTIMATE.start_main_~i~5 64), 183429#(<= ULTIMATE.start_main_~i~5 65), 183434#(<= ULTIMATE.start_main_~i~5 70), 183435#(<= ULTIMATE.start_main_~i~5 71), 183432#(<= ULTIMATE.start_main_~i~5 68), 183433#(<= ULTIMATE.start_main_~i~5 69), 183438#(<= ULTIMATE.start_main_~i~5 74), 183439#(<= ULTIMATE.start_main_~i~5 75), 183436#(<= ULTIMATE.start_main_~i~5 72), 183437#(<= ULTIMATE.start_main_~i~5 73), 183442#(<= ULTIMATE.start_main_~i~5 78), 183443#(<= ULTIMATE.start_main_~i~5 79), 183440#(<= ULTIMATE.start_main_~i~5 76), 183441#(<= ULTIMATE.start_main_~i~5 77), 183446#(<= ULTIMATE.start_main_~i~5 82), 183447#(<= ULTIMATE.start_main_~i~5 83), 183444#(<= ULTIMATE.start_main_~i~5 80), 183445#(<= ULTIMATE.start_main_~i~5 81), 183450#(<= ULTIMATE.start_main_~i~5 86), 183451#(<= ULTIMATE.start_main_~i~5 87), 183448#(<= ULTIMATE.start_main_~i~5 84), 183449#(<= ULTIMATE.start_main_~i~5 85), 183454#(<= ULTIMATE.start_main_~i~5 90), 183455#(<= ULTIMATE.start_main_~i~5 91), 183452#(<= ULTIMATE.start_main_~i~5 88), 183453#(<= ULTIMATE.start_main_~i~5 89), 183458#(<= ULTIMATE.start_main_~i~5 94), 183459#(<= ULTIMATE.start_main_~i~5 95), 183456#(<= ULTIMATE.start_main_~i~5 92), 183457#(<= ULTIMATE.start_main_~i~5 93), 183462#(<= ULTIMATE.start_main_~i~5 98), 183463#(<= ULTIMATE.start_main_~i~5 99), 183460#(<= ULTIMATE.start_main_~i~5 96), 183461#(<= ULTIMATE.start_main_~i~5 97), 183466#(<= ULTIMATE.start_main_~j~5 99), 183467#(<= ULTIMATE.start_main_~j~5 98), 183464#(<= ULTIMATE.start_main_~i~5 100), 183465#(<= ULTIMATE.start_main_~j~5 100), 183470#(<= ULTIMATE.start_main_~j~5 95), 183471#(<= ULTIMATE.start_main_~j~5 94), 183468#(<= ULTIMATE.start_main_~j~5 97), 183469#(<= ULTIMATE.start_main_~j~5 96), 183474#(<= ULTIMATE.start_main_~j~5 91), 183475#(<= ULTIMATE.start_main_~j~5 90), 183472#(<= ULTIMATE.start_main_~j~5 93), 183473#(<= ULTIMATE.start_main_~j~5 92), 183478#(<= ULTIMATE.start_main_~j~5 87), 183479#(<= ULTIMATE.start_main_~j~5 86), 183476#(<= ULTIMATE.start_main_~j~5 89), 183477#(<= ULTIMATE.start_main_~j~5 88), 183482#(<= ULTIMATE.start_main_~j~5 83), 183483#(<= ULTIMATE.start_main_~j~5 82), 183480#(<= ULTIMATE.start_main_~j~5 85), 183481#(<= ULTIMATE.start_main_~j~5 84), 183486#(<= ULTIMATE.start_main_~j~5 79), 183487#(<= ULTIMATE.start_main_~j~5 78), 183484#(<= ULTIMATE.start_main_~j~5 81), 183485#(<= ULTIMATE.start_main_~j~5 80), 183490#(<= ULTIMATE.start_main_~j~5 75), 183491#(<= ULTIMATE.start_main_~j~5 74), 183488#(<= ULTIMATE.start_main_~j~5 77), 183489#(<= ULTIMATE.start_main_~j~5 76), 183494#(<= ULTIMATE.start_main_~j~5 71), 183495#(<= ULTIMATE.start_main_~j~5 70), 183492#(<= ULTIMATE.start_main_~j~5 73), 183493#(<= ULTIMATE.start_main_~j~5 72), 183498#(<= ULTIMATE.start_main_~j~5 67), 183499#(<= ULTIMATE.start_main_~j~5 66), 183496#(<= ULTIMATE.start_main_~j~5 69), 183497#(<= ULTIMATE.start_main_~j~5 68), 183502#(<= ULTIMATE.start_main_~j~5 63), 183503#(<= ULTIMATE.start_main_~j~5 62), 183500#(<= ULTIMATE.start_main_~j~5 65), 183501#(<= ULTIMATE.start_main_~j~5 64), 183506#(<= ULTIMATE.start_main_~j~5 59), 183507#(<= ULTIMATE.start_main_~j~5 58), 183504#(<= ULTIMATE.start_main_~j~5 61), 183505#(<= ULTIMATE.start_main_~j~5 60), 183510#(<= ULTIMATE.start_main_~j~5 55), 183511#(<= ULTIMATE.start_main_~j~5 54), 183508#(<= ULTIMATE.start_main_~j~5 57), 183509#(<= ULTIMATE.start_main_~j~5 56), 183514#(<= ULTIMATE.start_main_~j~5 51), 183515#(<= ULTIMATE.start_main_~j~5 50), 183512#(<= ULTIMATE.start_main_~j~5 53), 183513#(<= ULTIMATE.start_main_~j~5 52), 183518#(<= ULTIMATE.start_main_~j~5 47), 183519#(<= ULTIMATE.start_main_~j~5 46), 183516#(<= ULTIMATE.start_main_~j~5 49), 183517#(<= ULTIMATE.start_main_~j~5 48), 183522#(<= ULTIMATE.start_main_~j~5 43), 183523#(<= ULTIMATE.start_main_~j~5 42), 183520#(<= ULTIMATE.start_main_~j~5 45), 183521#(<= ULTIMATE.start_main_~j~5 44), 183526#(<= ULTIMATE.start_main_~j~5 39), 183527#(<= ULTIMATE.start_main_~j~5 38), 183524#(<= ULTIMATE.start_main_~j~5 41), 183525#(<= ULTIMATE.start_main_~j~5 40), 183530#(<= ULTIMATE.start_main_~j~5 35), 183531#(<= ULTIMATE.start_main_~j~5 34), 183528#(<= ULTIMATE.start_main_~j~5 37), 183529#(<= ULTIMATE.start_main_~j~5 36), 183534#(<= ULTIMATE.start_main_~j~5 31), 183535#(<= ULTIMATE.start_main_~j~5 30), 183532#(<= ULTIMATE.start_main_~j~5 33), 183533#(<= ULTIMATE.start_main_~j~5 32), 183538#(<= ULTIMATE.start_main_~j~5 27), 183539#(<= ULTIMATE.start_main_~j~5 26), 183536#(<= ULTIMATE.start_main_~j~5 29), 183537#(<= ULTIMATE.start_main_~j~5 28), 183542#(<= ULTIMATE.start_main_~j~5 23), 183543#(<= ULTIMATE.start_main_~j~5 22), 183540#(<= ULTIMATE.start_main_~j~5 25), 183541#(<= ULTIMATE.start_main_~j~5 24), 183546#(<= ULTIMATE.start_main_~j~5 19), 183547#(<= ULTIMATE.start_main_~j~5 18), 183544#(<= ULTIMATE.start_main_~j~5 21), 183545#(<= ULTIMATE.start_main_~j~5 20), 183550#(<= ULTIMATE.start_main_~j~5 15), 183551#(<= ULTIMATE.start_main_~j~5 14), 183548#(<= ULTIMATE.start_main_~j~5 17), 183549#(<= ULTIMATE.start_main_~j~5 16), 183554#(<= ULTIMATE.start_main_~j~5 11), 183555#(<= ULTIMATE.start_main_~j~5 10), 183552#(<= ULTIMATE.start_main_~j~5 13), 183553#(<= ULTIMATE.start_main_~j~5 12), 183558#(<= ULTIMATE.start_main_~j~5 7), 183559#(<= ULTIMATE.start_main_~j~5 6), 183556#(<= ULTIMATE.start_main_~j~5 9), 183557#(<= ULTIMATE.start_main_~j~5 8), 183562#(<= ULTIMATE.start_main_~j~5 3), 183563#(<= ULTIMATE.start_main_~j~5 2), 183560#(<= ULTIMATE.start_main_~j~5 5), 183561#(<= ULTIMATE.start_main_~j~5 4), 183564#(<= ULTIMATE.start_main_~j~5 1), 183565#(<= ULTIMATE.start_main_~j~5 0)] [2018-07-23 13:43:19,835 INFO L134 CoverageAnalysis]: Checked inductivity of 15150 backedges. 10100 proven. 5050 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:19,835 INFO L450 AbstractCegarLoop]: Interpolant automaton has 204 states [2018-07-23 13:43:19,836 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 204 interpolants. [2018-07-23 13:43:19,837 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10505, Invalid=30907, Unknown=0, NotChecked=0, Total=41412 [2018-07-23 13:43:19,838 INFO L87 Difference]: Start difference. First operand 306 states and 307 transitions. Second operand 204 states. [2018-07-23 13:43:22,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:43:22,297 INFO L93 Difference]: Finished difference Result 512 states and 514 transitions. [2018-07-23 13:43:22,297 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 204 states. [2018-07-23 13:43:22,297 INFO L78 Accepts]: Start accepts. Automaton has 204 states. Word has length 305 [2018-07-23 13:43:22,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:43:22,298 INFO L225 Difference]: With dead ends: 512 [2018-07-23 13:43:22,298 INFO L226 Difference]: Without dead ends: 307 [2018-07-23 13:43:22,303 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 303 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15050 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=21009, Invalid=71711, Unknown=0, NotChecked=0, Total=92720 [2018-07-23 13:43:22,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2018-07-23 13:43:22,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 307. [2018-07-23 13:43:22,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 307 states. [2018-07-23 13:43:22,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 308 transitions. [2018-07-23 13:43:22,342 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 308 transitions. Word has length 305 [2018-07-23 13:43:22,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:43:22,343 INFO L471 AbstractCegarLoop]: Abstraction has 307 states and 308 transitions. [2018-07-23 13:43:22,343 INFO L472 AbstractCegarLoop]: Interpolant automaton has 204 states. [2018-07-23 13:43:22,343 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 308 transitions. [2018-07-23 13:43:22,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2018-07-23 13:43:22,344 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:43:22,344 INFO L357 BasicCegarLoop]: trace histogram [101, 101, 100, 1, 1, 1, 1] [2018-07-23 13:43:22,344 INFO L414 AbstractCegarLoop]: === Iteration 202 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:43:22,344 INFO L82 PathProgramCache]: Analyzing trace with hash 1583342402, now seen corresponding path program 200 times [2018-07-23 13:43:22,344 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:43:22,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:43:22,888 INFO L134 CoverageAnalysis]: Checked inductivity of 15251 backedges. 5151 proven. 10100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:22,889 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:43:22,889 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [104] total 104 [2018-07-23 13:43:22,889 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:43:22,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:22,889 INFO L185 omatonBuilderFactory]: Interpolants [185406#true, 185407#false, 185410#(<= 2 ULTIMATE.start_main_~k~5), 185411#(<= 3 ULTIMATE.start_main_~k~5), 185408#(<= 0 ULTIMATE.start_main_~k~5), 185409#(<= 1 ULTIMATE.start_main_~k~5), 185414#(<= 6 ULTIMATE.start_main_~k~5), 185415#(<= 7 ULTIMATE.start_main_~k~5), 185412#(<= 4 ULTIMATE.start_main_~k~5), 185413#(<= 5 ULTIMATE.start_main_~k~5), 185418#(<= 10 ULTIMATE.start_main_~k~5), 185419#(<= 11 ULTIMATE.start_main_~k~5), 185416#(<= 8 ULTIMATE.start_main_~k~5), 185417#(<= 9 ULTIMATE.start_main_~k~5), 185422#(<= 14 ULTIMATE.start_main_~k~5), 185423#(<= 15 ULTIMATE.start_main_~k~5), 185420#(<= 12 ULTIMATE.start_main_~k~5), 185421#(<= 13 ULTIMATE.start_main_~k~5), 185426#(<= 18 ULTIMATE.start_main_~k~5), 185427#(<= 19 ULTIMATE.start_main_~k~5), 185424#(<= 16 ULTIMATE.start_main_~k~5), 185425#(<= 17 ULTIMATE.start_main_~k~5), 185430#(<= 22 ULTIMATE.start_main_~k~5), 185431#(<= 23 ULTIMATE.start_main_~k~5), 185428#(<= 20 ULTIMATE.start_main_~k~5), 185429#(<= 21 ULTIMATE.start_main_~k~5), 185434#(<= 26 ULTIMATE.start_main_~k~5), 185435#(<= 27 ULTIMATE.start_main_~k~5), 185432#(<= 24 ULTIMATE.start_main_~k~5), 185433#(<= 25 ULTIMATE.start_main_~k~5), 185438#(<= 30 ULTIMATE.start_main_~k~5), 185439#(<= 31 ULTIMATE.start_main_~k~5), 185436#(<= 28 ULTIMATE.start_main_~k~5), 185437#(<= 29 ULTIMATE.start_main_~k~5), 185442#(<= 34 ULTIMATE.start_main_~k~5), 185443#(<= 35 ULTIMATE.start_main_~k~5), 185440#(<= 32 ULTIMATE.start_main_~k~5), 185441#(<= 33 ULTIMATE.start_main_~k~5), 185446#(<= 38 ULTIMATE.start_main_~k~5), 185447#(<= 39 ULTIMATE.start_main_~k~5), 185444#(<= 36 ULTIMATE.start_main_~k~5), 185445#(<= 37 ULTIMATE.start_main_~k~5), 185450#(<= 42 ULTIMATE.start_main_~k~5), 185451#(<= 43 ULTIMATE.start_main_~k~5), 185448#(<= 40 ULTIMATE.start_main_~k~5), 185449#(<= 41 ULTIMATE.start_main_~k~5), 185454#(<= 46 ULTIMATE.start_main_~k~5), 185455#(<= 47 ULTIMATE.start_main_~k~5), 185452#(<= 44 ULTIMATE.start_main_~k~5), 185453#(<= 45 ULTIMATE.start_main_~k~5), 185458#(<= 50 ULTIMATE.start_main_~k~5), 185459#(<= 51 ULTIMATE.start_main_~k~5), 185456#(<= 48 ULTIMATE.start_main_~k~5), 185457#(<= 49 ULTIMATE.start_main_~k~5), 185462#(<= 54 ULTIMATE.start_main_~k~5), 185463#(<= 55 ULTIMATE.start_main_~k~5), 185460#(<= 52 ULTIMATE.start_main_~k~5), 185461#(<= 53 ULTIMATE.start_main_~k~5), 185466#(<= 58 ULTIMATE.start_main_~k~5), 185467#(<= 59 ULTIMATE.start_main_~k~5), 185464#(<= 56 ULTIMATE.start_main_~k~5), 185465#(<= 57 ULTIMATE.start_main_~k~5), 185470#(<= 62 ULTIMATE.start_main_~k~5), 185471#(<= 63 ULTIMATE.start_main_~k~5), 185468#(<= 60 ULTIMATE.start_main_~k~5), 185469#(<= 61 ULTIMATE.start_main_~k~5), 185474#(<= 66 ULTIMATE.start_main_~k~5), 185475#(<= 67 ULTIMATE.start_main_~k~5), 185472#(<= 64 ULTIMATE.start_main_~k~5), 185473#(<= 65 ULTIMATE.start_main_~k~5), 185478#(<= 70 ULTIMATE.start_main_~k~5), 185479#(<= 71 ULTIMATE.start_main_~k~5), 185476#(<= 68 ULTIMATE.start_main_~k~5), 185477#(<= 69 ULTIMATE.start_main_~k~5), 185482#(<= 74 ULTIMATE.start_main_~k~5), 185483#(<= 75 ULTIMATE.start_main_~k~5), 185480#(<= 72 ULTIMATE.start_main_~k~5), 185481#(<= 73 ULTIMATE.start_main_~k~5), 185486#(<= 78 ULTIMATE.start_main_~k~5), 185487#(<= 79 ULTIMATE.start_main_~k~5), 185484#(<= 76 ULTIMATE.start_main_~k~5), 185485#(<= 77 ULTIMATE.start_main_~k~5), 185490#(<= 82 ULTIMATE.start_main_~k~5), 185491#(<= 83 ULTIMATE.start_main_~k~5), 185488#(<= 80 ULTIMATE.start_main_~k~5), 185489#(<= 81 ULTIMATE.start_main_~k~5), 185494#(<= 86 ULTIMATE.start_main_~k~5), 185495#(<= 87 ULTIMATE.start_main_~k~5), 185492#(<= 84 ULTIMATE.start_main_~k~5), 185493#(<= 85 ULTIMATE.start_main_~k~5), 185498#(<= 90 ULTIMATE.start_main_~k~5), 185499#(<= 91 ULTIMATE.start_main_~k~5), 185496#(<= 88 ULTIMATE.start_main_~k~5), 185497#(<= 89 ULTIMATE.start_main_~k~5), 185502#(<= 94 ULTIMATE.start_main_~k~5), 185503#(<= 95 ULTIMATE.start_main_~k~5), 185500#(<= 92 ULTIMATE.start_main_~k~5), 185501#(<= 93 ULTIMATE.start_main_~k~5), 185506#(<= 98 ULTIMATE.start_main_~k~5), 185507#(<= 99 ULTIMATE.start_main_~k~5), 185504#(<= 96 ULTIMATE.start_main_~k~5), 185505#(<= 97 ULTIMATE.start_main_~k~5), 185510#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 185508#(<= 100 ULTIMATE.start_main_~k~5), 185509#(<= 101 ULTIMATE.start_main_~k~5)] [2018-07-23 13:43:22,890 INFO L134 CoverageAnalysis]: Checked inductivity of 15251 backedges. 5151 proven. 10100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:22,890 INFO L450 AbstractCegarLoop]: Interpolant automaton has 105 states [2018-07-23 13:43:22,891 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2018-07-23 13:43:22,891 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5358, Invalid=5562, Unknown=0, NotChecked=0, Total=10920 [2018-07-23 13:43:22,891 INFO L87 Difference]: Start difference. First operand 307 states and 308 transitions. Second operand 105 states. [2018-07-23 13:43:23,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:43:23,382 INFO L93 Difference]: Finished difference Result 315 states and 316 transitions. [2018-07-23 13:43:23,382 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 206 states. [2018-07-23 13:43:23,382 INFO L78 Accepts]: Start accepts. Automaton has 105 states. Word has length 306 [2018-07-23 13:43:23,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:43:23,383 INFO L225 Difference]: With dead ends: 315 [2018-07-23 13:43:23,383 INFO L226 Difference]: Without dead ends: 313 [2018-07-23 13:43:23,384 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 205 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10302 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=16068, Invalid=26574, Unknown=0, NotChecked=0, Total=42642 [2018-07-23 13:43:23,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2018-07-23 13:43:23,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 309. [2018-07-23 13:43:23,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 309 states. [2018-07-23 13:43:23,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 310 transitions. [2018-07-23 13:43:23,421 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 310 transitions. Word has length 306 [2018-07-23 13:43:23,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:43:23,421 INFO L471 AbstractCegarLoop]: Abstraction has 309 states and 310 transitions. [2018-07-23 13:43:23,422 INFO L472 AbstractCegarLoop]: Interpolant automaton has 105 states. [2018-07-23 13:43:23,422 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 310 transitions. [2018-07-23 13:43:23,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2018-07-23 13:43:23,423 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:43:23,423 INFO L357 BasicCegarLoop]: trace histogram [102, 101, 101, 1, 1, 1, 1] [2018-07-23 13:43:23,423 INFO L414 AbstractCegarLoop]: === Iteration 203 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:43:23,423 INFO L82 PathProgramCache]: Analyzing trace with hash 1173691562, now seen corresponding path program 201 times [2018-07-23 13:43:23,423 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:43:23,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:43:24,293 INFO L134 CoverageAnalysis]: Checked inductivity of 15453 backedges. 10302 proven. 5151 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:24,293 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:43:24,293 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [205] total 205 [2018-07-23 13:43:24,294 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:43:24,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:24,294 INFO L185 omatonBuilderFactory]: Interpolants [186963#true, 186966#(<= ULTIMATE.start_main_~i~5 1), 186967#(<= ULTIMATE.start_main_~i~5 2), 186964#false, 186965#(<= ULTIMATE.start_main_~i~5 0), 186970#(<= ULTIMATE.start_main_~i~5 5), 186971#(<= ULTIMATE.start_main_~i~5 6), 186968#(<= ULTIMATE.start_main_~i~5 3), 186969#(<= ULTIMATE.start_main_~i~5 4), 186974#(<= ULTIMATE.start_main_~i~5 9), 186975#(<= ULTIMATE.start_main_~i~5 10), 186972#(<= ULTIMATE.start_main_~i~5 7), 186973#(<= ULTIMATE.start_main_~i~5 8), 186978#(<= ULTIMATE.start_main_~i~5 13), 186979#(<= ULTIMATE.start_main_~i~5 14), 186976#(<= ULTIMATE.start_main_~i~5 11), 186977#(<= ULTIMATE.start_main_~i~5 12), 186982#(<= ULTIMATE.start_main_~i~5 17), 186983#(<= ULTIMATE.start_main_~i~5 18), 186980#(<= ULTIMATE.start_main_~i~5 15), 186981#(<= ULTIMATE.start_main_~i~5 16), 186986#(<= ULTIMATE.start_main_~i~5 21), 186987#(<= ULTIMATE.start_main_~i~5 22), 186984#(<= ULTIMATE.start_main_~i~5 19), 186985#(<= ULTIMATE.start_main_~i~5 20), 186990#(<= ULTIMATE.start_main_~i~5 25), 186991#(<= ULTIMATE.start_main_~i~5 26), 186988#(<= ULTIMATE.start_main_~i~5 23), 186989#(<= ULTIMATE.start_main_~i~5 24), 186994#(<= ULTIMATE.start_main_~i~5 29), 186995#(<= ULTIMATE.start_main_~i~5 30), 186992#(<= ULTIMATE.start_main_~i~5 27), 186993#(<= ULTIMATE.start_main_~i~5 28), 186998#(<= ULTIMATE.start_main_~i~5 33), 186999#(<= ULTIMATE.start_main_~i~5 34), 186996#(<= ULTIMATE.start_main_~i~5 31), 186997#(<= ULTIMATE.start_main_~i~5 32), 187002#(<= ULTIMATE.start_main_~i~5 37), 187003#(<= ULTIMATE.start_main_~i~5 38), 187000#(<= ULTIMATE.start_main_~i~5 35), 187001#(<= ULTIMATE.start_main_~i~5 36), 187006#(<= ULTIMATE.start_main_~i~5 41), 187007#(<= ULTIMATE.start_main_~i~5 42), 187004#(<= ULTIMATE.start_main_~i~5 39), 187005#(<= ULTIMATE.start_main_~i~5 40), 187010#(<= ULTIMATE.start_main_~i~5 45), 187011#(<= ULTIMATE.start_main_~i~5 46), 187008#(<= ULTIMATE.start_main_~i~5 43), 187009#(<= ULTIMATE.start_main_~i~5 44), 187014#(<= ULTIMATE.start_main_~i~5 49), 187015#(<= ULTIMATE.start_main_~i~5 50), 187012#(<= ULTIMATE.start_main_~i~5 47), 187013#(<= ULTIMATE.start_main_~i~5 48), 187018#(<= ULTIMATE.start_main_~i~5 53), 187019#(<= ULTIMATE.start_main_~i~5 54), 187016#(<= ULTIMATE.start_main_~i~5 51), 187017#(<= ULTIMATE.start_main_~i~5 52), 187022#(<= ULTIMATE.start_main_~i~5 57), 187023#(<= ULTIMATE.start_main_~i~5 58), 187020#(<= ULTIMATE.start_main_~i~5 55), 187021#(<= ULTIMATE.start_main_~i~5 56), 187026#(<= ULTIMATE.start_main_~i~5 61), 187027#(<= ULTIMATE.start_main_~i~5 62), 187024#(<= ULTIMATE.start_main_~i~5 59), 187025#(<= ULTIMATE.start_main_~i~5 60), 187030#(<= ULTIMATE.start_main_~i~5 65), 187031#(<= ULTIMATE.start_main_~i~5 66), 187028#(<= ULTIMATE.start_main_~i~5 63), 187029#(<= ULTIMATE.start_main_~i~5 64), 187034#(<= ULTIMATE.start_main_~i~5 69), 187035#(<= ULTIMATE.start_main_~i~5 70), 187032#(<= ULTIMATE.start_main_~i~5 67), 187033#(<= ULTIMATE.start_main_~i~5 68), 187038#(<= ULTIMATE.start_main_~i~5 73), 187039#(<= ULTIMATE.start_main_~i~5 74), 187036#(<= ULTIMATE.start_main_~i~5 71), 187037#(<= ULTIMATE.start_main_~i~5 72), 187042#(<= ULTIMATE.start_main_~i~5 77), 187043#(<= ULTIMATE.start_main_~i~5 78), 187040#(<= ULTIMATE.start_main_~i~5 75), 187041#(<= ULTIMATE.start_main_~i~5 76), 187046#(<= ULTIMATE.start_main_~i~5 81), 187047#(<= ULTIMATE.start_main_~i~5 82), 187044#(<= ULTIMATE.start_main_~i~5 79), 187045#(<= ULTIMATE.start_main_~i~5 80), 187050#(<= ULTIMATE.start_main_~i~5 85), 187051#(<= ULTIMATE.start_main_~i~5 86), 187048#(<= ULTIMATE.start_main_~i~5 83), 187049#(<= ULTIMATE.start_main_~i~5 84), 187054#(<= ULTIMATE.start_main_~i~5 89), 187055#(<= ULTIMATE.start_main_~i~5 90), 187052#(<= ULTIMATE.start_main_~i~5 87), 187053#(<= ULTIMATE.start_main_~i~5 88), 187058#(<= ULTIMATE.start_main_~i~5 93), 187059#(<= ULTIMATE.start_main_~i~5 94), 187056#(<= ULTIMATE.start_main_~i~5 91), 187057#(<= ULTIMATE.start_main_~i~5 92), 187062#(<= ULTIMATE.start_main_~i~5 97), 187063#(<= ULTIMATE.start_main_~i~5 98), 187060#(<= ULTIMATE.start_main_~i~5 95), 187061#(<= ULTIMATE.start_main_~i~5 96), 187066#(<= ULTIMATE.start_main_~i~5 101), 187067#(<= ULTIMATE.start_main_~j~5 101), 187064#(<= ULTIMATE.start_main_~i~5 99), 187065#(<= ULTIMATE.start_main_~i~5 100), 187070#(<= ULTIMATE.start_main_~j~5 98), 187071#(<= ULTIMATE.start_main_~j~5 97), 187068#(<= ULTIMATE.start_main_~j~5 100), 187069#(<= ULTIMATE.start_main_~j~5 99), 187074#(<= ULTIMATE.start_main_~j~5 94), 187075#(<= ULTIMATE.start_main_~j~5 93), 187072#(<= ULTIMATE.start_main_~j~5 96), 187073#(<= ULTIMATE.start_main_~j~5 95), 187078#(<= ULTIMATE.start_main_~j~5 90), 187079#(<= ULTIMATE.start_main_~j~5 89), 187076#(<= ULTIMATE.start_main_~j~5 92), 187077#(<= ULTIMATE.start_main_~j~5 91), 187082#(<= ULTIMATE.start_main_~j~5 86), 187083#(<= ULTIMATE.start_main_~j~5 85), 187080#(<= ULTIMATE.start_main_~j~5 88), 187081#(<= ULTIMATE.start_main_~j~5 87), 187086#(<= ULTIMATE.start_main_~j~5 82), 187087#(<= ULTIMATE.start_main_~j~5 81), 187084#(<= ULTIMATE.start_main_~j~5 84), 187085#(<= ULTIMATE.start_main_~j~5 83), 187090#(<= ULTIMATE.start_main_~j~5 78), 187091#(<= ULTIMATE.start_main_~j~5 77), 187088#(<= ULTIMATE.start_main_~j~5 80), 187089#(<= ULTIMATE.start_main_~j~5 79), 187094#(<= ULTIMATE.start_main_~j~5 74), 187095#(<= ULTIMATE.start_main_~j~5 73), 187092#(<= ULTIMATE.start_main_~j~5 76), 187093#(<= ULTIMATE.start_main_~j~5 75), 187098#(<= ULTIMATE.start_main_~j~5 70), 187099#(<= ULTIMATE.start_main_~j~5 69), 187096#(<= ULTIMATE.start_main_~j~5 72), 187097#(<= ULTIMATE.start_main_~j~5 71), 187102#(<= ULTIMATE.start_main_~j~5 66), 187103#(<= ULTIMATE.start_main_~j~5 65), 187100#(<= ULTIMATE.start_main_~j~5 68), 187101#(<= ULTIMATE.start_main_~j~5 67), 187106#(<= ULTIMATE.start_main_~j~5 62), 187107#(<= ULTIMATE.start_main_~j~5 61), 187104#(<= ULTIMATE.start_main_~j~5 64), 187105#(<= ULTIMATE.start_main_~j~5 63), 187110#(<= ULTIMATE.start_main_~j~5 58), 187111#(<= ULTIMATE.start_main_~j~5 57), 187108#(<= ULTIMATE.start_main_~j~5 60), 187109#(<= ULTIMATE.start_main_~j~5 59), 187114#(<= ULTIMATE.start_main_~j~5 54), 187115#(<= ULTIMATE.start_main_~j~5 53), 187112#(<= ULTIMATE.start_main_~j~5 56), 187113#(<= ULTIMATE.start_main_~j~5 55), 187118#(<= ULTIMATE.start_main_~j~5 50), 187119#(<= ULTIMATE.start_main_~j~5 49), 187116#(<= ULTIMATE.start_main_~j~5 52), 187117#(<= ULTIMATE.start_main_~j~5 51), 187122#(<= ULTIMATE.start_main_~j~5 46), 187123#(<= ULTIMATE.start_main_~j~5 45), 187120#(<= ULTIMATE.start_main_~j~5 48), 187121#(<= ULTIMATE.start_main_~j~5 47), 187126#(<= ULTIMATE.start_main_~j~5 42), 187127#(<= ULTIMATE.start_main_~j~5 41), 187124#(<= ULTIMATE.start_main_~j~5 44), 187125#(<= ULTIMATE.start_main_~j~5 43), 187130#(<= ULTIMATE.start_main_~j~5 38), 187131#(<= ULTIMATE.start_main_~j~5 37), 187128#(<= ULTIMATE.start_main_~j~5 40), 187129#(<= ULTIMATE.start_main_~j~5 39), 187134#(<= ULTIMATE.start_main_~j~5 34), 187135#(<= ULTIMATE.start_main_~j~5 33), 187132#(<= ULTIMATE.start_main_~j~5 36), 187133#(<= ULTIMATE.start_main_~j~5 35), 187138#(<= ULTIMATE.start_main_~j~5 30), 187139#(<= ULTIMATE.start_main_~j~5 29), 187136#(<= ULTIMATE.start_main_~j~5 32), 187137#(<= ULTIMATE.start_main_~j~5 31), 187142#(<= ULTIMATE.start_main_~j~5 26), 187143#(<= ULTIMATE.start_main_~j~5 25), 187140#(<= ULTIMATE.start_main_~j~5 28), 187141#(<= ULTIMATE.start_main_~j~5 27), 187146#(<= ULTIMATE.start_main_~j~5 22), 187147#(<= ULTIMATE.start_main_~j~5 21), 187144#(<= ULTIMATE.start_main_~j~5 24), 187145#(<= ULTIMATE.start_main_~j~5 23), 187150#(<= ULTIMATE.start_main_~j~5 18), 187151#(<= ULTIMATE.start_main_~j~5 17), 187148#(<= ULTIMATE.start_main_~j~5 20), 187149#(<= ULTIMATE.start_main_~j~5 19), 187154#(<= ULTIMATE.start_main_~j~5 14), 187155#(<= ULTIMATE.start_main_~j~5 13), 187152#(<= ULTIMATE.start_main_~j~5 16), 187153#(<= ULTIMATE.start_main_~j~5 15), 187158#(<= ULTIMATE.start_main_~j~5 10), 187159#(<= ULTIMATE.start_main_~j~5 9), 187156#(<= ULTIMATE.start_main_~j~5 12), 187157#(<= ULTIMATE.start_main_~j~5 11), 187162#(<= ULTIMATE.start_main_~j~5 6), 187163#(<= ULTIMATE.start_main_~j~5 5), 187160#(<= ULTIMATE.start_main_~j~5 8), 187161#(<= ULTIMATE.start_main_~j~5 7), 187166#(<= ULTIMATE.start_main_~j~5 2), 187167#(<= ULTIMATE.start_main_~j~5 1), 187164#(<= ULTIMATE.start_main_~j~5 4), 187165#(<= ULTIMATE.start_main_~j~5 3), 187168#(<= ULTIMATE.start_main_~j~5 0)] [2018-07-23 13:43:24,295 INFO L134 CoverageAnalysis]: Checked inductivity of 15453 backedges. 10302 proven. 5151 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:24,295 INFO L450 AbstractCegarLoop]: Interpolant automaton has 206 states [2018-07-23 13:43:24,296 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 206 interpolants. [2018-07-23 13:43:24,298 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10711, Invalid=31519, Unknown=0, NotChecked=0, Total=42230 [2018-07-23 13:43:24,298 INFO L87 Difference]: Start difference. First operand 309 states and 310 transitions. Second operand 206 states. [2018-07-23 13:43:26,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:43:26,834 INFO L93 Difference]: Finished difference Result 517 states and 519 transitions. [2018-07-23 13:43:26,835 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 206 states. [2018-07-23 13:43:26,835 INFO L78 Accepts]: Start accepts. Automaton has 206 states. Word has length 308 [2018-07-23 13:43:26,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:43:26,835 INFO L225 Difference]: With dead ends: 517 [2018-07-23 13:43:26,835 INFO L226 Difference]: Without dead ends: 310 [2018-07-23 13:43:26,841 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 306 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15352 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=21421, Invalid=73135, Unknown=0, NotChecked=0, Total=94556 [2018-07-23 13:43:26,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2018-07-23 13:43:26,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 310. [2018-07-23 13:43:26,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 310 states. [2018-07-23 13:43:26,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 311 transitions. [2018-07-23 13:43:26,879 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 311 transitions. Word has length 308 [2018-07-23 13:43:26,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:43:26,879 INFO L471 AbstractCegarLoop]: Abstraction has 310 states and 311 transitions. [2018-07-23 13:43:26,879 INFO L472 AbstractCegarLoop]: Interpolant automaton has 206 states. [2018-07-23 13:43:26,879 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 311 transitions. [2018-07-23 13:43:26,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2018-07-23 13:43:26,880 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:43:26,880 INFO L357 BasicCegarLoop]: trace histogram [102, 102, 101, 1, 1, 1, 1] [2018-07-23 13:43:26,880 INFO L414 AbstractCegarLoop]: === Iteration 204 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:43:26,880 INFO L82 PathProgramCache]: Analyzing trace with hash -1065366109, now seen corresponding path program 202 times [2018-07-23 13:43:26,880 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:43:27,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:43:27,420 INFO L134 CoverageAnalysis]: Checked inductivity of 15555 backedges. 5253 proven. 10302 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:27,420 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:43:27,420 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [105] total 105 [2018-07-23 13:43:27,420 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:43:27,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:27,421 INFO L185 omatonBuilderFactory]: Interpolants [189027#true, 189030#(<= 1 ULTIMATE.start_main_~k~5), 189031#(<= 2 ULTIMATE.start_main_~k~5), 189028#false, 189029#(<= 0 ULTIMATE.start_main_~k~5), 189034#(<= 5 ULTIMATE.start_main_~k~5), 189035#(<= 6 ULTIMATE.start_main_~k~5), 189032#(<= 3 ULTIMATE.start_main_~k~5), 189033#(<= 4 ULTIMATE.start_main_~k~5), 189038#(<= 9 ULTIMATE.start_main_~k~5), 189039#(<= 10 ULTIMATE.start_main_~k~5), 189036#(<= 7 ULTIMATE.start_main_~k~5), 189037#(<= 8 ULTIMATE.start_main_~k~5), 189042#(<= 13 ULTIMATE.start_main_~k~5), 189043#(<= 14 ULTIMATE.start_main_~k~5), 189040#(<= 11 ULTIMATE.start_main_~k~5), 189041#(<= 12 ULTIMATE.start_main_~k~5), 189046#(<= 17 ULTIMATE.start_main_~k~5), 189047#(<= 18 ULTIMATE.start_main_~k~5), 189044#(<= 15 ULTIMATE.start_main_~k~5), 189045#(<= 16 ULTIMATE.start_main_~k~5), 189050#(<= 21 ULTIMATE.start_main_~k~5), 189051#(<= 22 ULTIMATE.start_main_~k~5), 189048#(<= 19 ULTIMATE.start_main_~k~5), 189049#(<= 20 ULTIMATE.start_main_~k~5), 189054#(<= 25 ULTIMATE.start_main_~k~5), 189055#(<= 26 ULTIMATE.start_main_~k~5), 189052#(<= 23 ULTIMATE.start_main_~k~5), 189053#(<= 24 ULTIMATE.start_main_~k~5), 189058#(<= 29 ULTIMATE.start_main_~k~5), 189059#(<= 30 ULTIMATE.start_main_~k~5), 189056#(<= 27 ULTIMATE.start_main_~k~5), 189057#(<= 28 ULTIMATE.start_main_~k~5), 189062#(<= 33 ULTIMATE.start_main_~k~5), 189063#(<= 34 ULTIMATE.start_main_~k~5), 189060#(<= 31 ULTIMATE.start_main_~k~5), 189061#(<= 32 ULTIMATE.start_main_~k~5), 189066#(<= 37 ULTIMATE.start_main_~k~5), 189067#(<= 38 ULTIMATE.start_main_~k~5), 189064#(<= 35 ULTIMATE.start_main_~k~5), 189065#(<= 36 ULTIMATE.start_main_~k~5), 189070#(<= 41 ULTIMATE.start_main_~k~5), 189071#(<= 42 ULTIMATE.start_main_~k~5), 189068#(<= 39 ULTIMATE.start_main_~k~5), 189069#(<= 40 ULTIMATE.start_main_~k~5), 189074#(<= 45 ULTIMATE.start_main_~k~5), 189075#(<= 46 ULTIMATE.start_main_~k~5), 189072#(<= 43 ULTIMATE.start_main_~k~5), 189073#(<= 44 ULTIMATE.start_main_~k~5), 189078#(<= 49 ULTIMATE.start_main_~k~5), 189079#(<= 50 ULTIMATE.start_main_~k~5), 189076#(<= 47 ULTIMATE.start_main_~k~5), 189077#(<= 48 ULTIMATE.start_main_~k~5), 189082#(<= 53 ULTIMATE.start_main_~k~5), 189083#(<= 54 ULTIMATE.start_main_~k~5), 189080#(<= 51 ULTIMATE.start_main_~k~5), 189081#(<= 52 ULTIMATE.start_main_~k~5), 189086#(<= 57 ULTIMATE.start_main_~k~5), 189087#(<= 58 ULTIMATE.start_main_~k~5), 189084#(<= 55 ULTIMATE.start_main_~k~5), 189085#(<= 56 ULTIMATE.start_main_~k~5), 189090#(<= 61 ULTIMATE.start_main_~k~5), 189091#(<= 62 ULTIMATE.start_main_~k~5), 189088#(<= 59 ULTIMATE.start_main_~k~5), 189089#(<= 60 ULTIMATE.start_main_~k~5), 189094#(<= 65 ULTIMATE.start_main_~k~5), 189095#(<= 66 ULTIMATE.start_main_~k~5), 189092#(<= 63 ULTIMATE.start_main_~k~5), 189093#(<= 64 ULTIMATE.start_main_~k~5), 189098#(<= 69 ULTIMATE.start_main_~k~5), 189099#(<= 70 ULTIMATE.start_main_~k~5), 189096#(<= 67 ULTIMATE.start_main_~k~5), 189097#(<= 68 ULTIMATE.start_main_~k~5), 189102#(<= 73 ULTIMATE.start_main_~k~5), 189103#(<= 74 ULTIMATE.start_main_~k~5), 189100#(<= 71 ULTIMATE.start_main_~k~5), 189101#(<= 72 ULTIMATE.start_main_~k~5), 189106#(<= 77 ULTIMATE.start_main_~k~5), 189107#(<= 78 ULTIMATE.start_main_~k~5), 189104#(<= 75 ULTIMATE.start_main_~k~5), 189105#(<= 76 ULTIMATE.start_main_~k~5), 189110#(<= 81 ULTIMATE.start_main_~k~5), 189111#(<= 82 ULTIMATE.start_main_~k~5), 189108#(<= 79 ULTIMATE.start_main_~k~5), 189109#(<= 80 ULTIMATE.start_main_~k~5), 189114#(<= 85 ULTIMATE.start_main_~k~5), 189115#(<= 86 ULTIMATE.start_main_~k~5), 189112#(<= 83 ULTIMATE.start_main_~k~5), 189113#(<= 84 ULTIMATE.start_main_~k~5), 189118#(<= 89 ULTIMATE.start_main_~k~5), 189119#(<= 90 ULTIMATE.start_main_~k~5), 189116#(<= 87 ULTIMATE.start_main_~k~5), 189117#(<= 88 ULTIMATE.start_main_~k~5), 189122#(<= 93 ULTIMATE.start_main_~k~5), 189123#(<= 94 ULTIMATE.start_main_~k~5), 189120#(<= 91 ULTIMATE.start_main_~k~5), 189121#(<= 92 ULTIMATE.start_main_~k~5), 189126#(<= 97 ULTIMATE.start_main_~k~5), 189127#(<= 98 ULTIMATE.start_main_~k~5), 189124#(<= 95 ULTIMATE.start_main_~k~5), 189125#(<= 96 ULTIMATE.start_main_~k~5), 189130#(<= 101 ULTIMATE.start_main_~k~5), 189131#(<= 102 ULTIMATE.start_main_~k~5), 189128#(<= 99 ULTIMATE.start_main_~k~5), 189129#(<= 100 ULTIMATE.start_main_~k~5), 189132#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond)] [2018-07-23 13:43:27,422 INFO L134 CoverageAnalysis]: Checked inductivity of 15555 backedges. 5253 proven. 10302 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:27,422 INFO L450 AbstractCegarLoop]: Interpolant automaton has 106 states [2018-07-23 13:43:27,423 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 106 interpolants. [2018-07-23 13:43:27,423 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5462, Invalid=5668, Unknown=0, NotChecked=0, Total=11130 [2018-07-23 13:43:27,424 INFO L87 Difference]: Start difference. First operand 310 states and 311 transitions. Second operand 106 states. [2018-07-23 13:43:27,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:43:27,879 INFO L93 Difference]: Finished difference Result 318 states and 319 transitions. [2018-07-23 13:43:27,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 208 states. [2018-07-23 13:43:27,879 INFO L78 Accepts]: Start accepts. Automaton has 106 states. Word has length 309 [2018-07-23 13:43:27,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:43:27,880 INFO L225 Difference]: With dead ends: 318 [2018-07-23 13:43:27,880 INFO L226 Difference]: Without dead ends: 316 [2018-07-23 13:43:27,881 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 207 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10506 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=16380, Invalid=27092, Unknown=0, NotChecked=0, Total=43472 [2018-07-23 13:43:27,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2018-07-23 13:43:27,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 312. [2018-07-23 13:43:27,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 312 states. [2018-07-23 13:43:27,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 313 transitions. [2018-07-23 13:43:27,922 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 313 transitions. Word has length 309 [2018-07-23 13:43:27,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:43:27,922 INFO L471 AbstractCegarLoop]: Abstraction has 312 states and 313 transitions. [2018-07-23 13:43:27,922 INFO L472 AbstractCegarLoop]: Interpolant automaton has 106 states. [2018-07-23 13:43:27,922 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 313 transitions. [2018-07-23 13:43:27,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2018-07-23 13:43:27,923 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:43:27,923 INFO L357 BasicCegarLoop]: trace histogram [103, 102, 102, 1, 1, 1, 1] [2018-07-23 13:43:27,923 INFO L414 AbstractCegarLoop]: === Iteration 205 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:43:27,923 INFO L82 PathProgramCache]: Analyzing trace with hash -1614548277, now seen corresponding path program 203 times [2018-07-23 13:43:27,924 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:43:28,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:43:28,839 INFO L134 CoverageAnalysis]: Checked inductivity of 15759 backedges. 10506 proven. 5253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:28,839 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:43:28,839 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [207] total 207 [2018-07-23 13:43:28,839 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:43:28,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:28,840 INFO L185 omatonBuilderFactory]: Interpolants [190599#true, 190602#(<= ULTIMATE.start_main_~i~5 1), 190603#(<= ULTIMATE.start_main_~i~5 2), 190600#false, 190601#(<= ULTIMATE.start_main_~i~5 0), 190606#(<= ULTIMATE.start_main_~i~5 5), 190607#(<= ULTIMATE.start_main_~i~5 6), 190604#(<= ULTIMATE.start_main_~i~5 3), 190605#(<= ULTIMATE.start_main_~i~5 4), 190610#(<= ULTIMATE.start_main_~i~5 9), 190611#(<= ULTIMATE.start_main_~i~5 10), 190608#(<= ULTIMATE.start_main_~i~5 7), 190609#(<= ULTIMATE.start_main_~i~5 8), 190614#(<= ULTIMATE.start_main_~i~5 13), 190615#(<= ULTIMATE.start_main_~i~5 14), 190612#(<= ULTIMATE.start_main_~i~5 11), 190613#(<= ULTIMATE.start_main_~i~5 12), 190618#(<= ULTIMATE.start_main_~i~5 17), 190619#(<= ULTIMATE.start_main_~i~5 18), 190616#(<= ULTIMATE.start_main_~i~5 15), 190617#(<= ULTIMATE.start_main_~i~5 16), 190622#(<= ULTIMATE.start_main_~i~5 21), 190623#(<= ULTIMATE.start_main_~i~5 22), 190620#(<= ULTIMATE.start_main_~i~5 19), 190621#(<= ULTIMATE.start_main_~i~5 20), 190626#(<= ULTIMATE.start_main_~i~5 25), 190627#(<= ULTIMATE.start_main_~i~5 26), 190624#(<= ULTIMATE.start_main_~i~5 23), 190625#(<= ULTIMATE.start_main_~i~5 24), 190630#(<= ULTIMATE.start_main_~i~5 29), 190631#(<= ULTIMATE.start_main_~i~5 30), 190628#(<= ULTIMATE.start_main_~i~5 27), 190629#(<= ULTIMATE.start_main_~i~5 28), 190634#(<= ULTIMATE.start_main_~i~5 33), 190635#(<= ULTIMATE.start_main_~i~5 34), 190632#(<= ULTIMATE.start_main_~i~5 31), 190633#(<= ULTIMATE.start_main_~i~5 32), 190638#(<= ULTIMATE.start_main_~i~5 37), 190639#(<= ULTIMATE.start_main_~i~5 38), 190636#(<= ULTIMATE.start_main_~i~5 35), 190637#(<= ULTIMATE.start_main_~i~5 36), 190642#(<= ULTIMATE.start_main_~i~5 41), 190643#(<= ULTIMATE.start_main_~i~5 42), 190640#(<= ULTIMATE.start_main_~i~5 39), 190641#(<= ULTIMATE.start_main_~i~5 40), 190646#(<= ULTIMATE.start_main_~i~5 45), 190647#(<= ULTIMATE.start_main_~i~5 46), 190644#(<= ULTIMATE.start_main_~i~5 43), 190645#(<= ULTIMATE.start_main_~i~5 44), 190650#(<= ULTIMATE.start_main_~i~5 49), 190651#(<= ULTIMATE.start_main_~i~5 50), 190648#(<= ULTIMATE.start_main_~i~5 47), 190649#(<= ULTIMATE.start_main_~i~5 48), 190654#(<= ULTIMATE.start_main_~i~5 53), 190655#(<= ULTIMATE.start_main_~i~5 54), 190652#(<= ULTIMATE.start_main_~i~5 51), 190653#(<= ULTIMATE.start_main_~i~5 52), 190658#(<= ULTIMATE.start_main_~i~5 57), 190659#(<= ULTIMATE.start_main_~i~5 58), 190656#(<= ULTIMATE.start_main_~i~5 55), 190657#(<= ULTIMATE.start_main_~i~5 56), 190662#(<= ULTIMATE.start_main_~i~5 61), 190663#(<= ULTIMATE.start_main_~i~5 62), 190660#(<= ULTIMATE.start_main_~i~5 59), 190661#(<= ULTIMATE.start_main_~i~5 60), 190666#(<= ULTIMATE.start_main_~i~5 65), 190667#(<= ULTIMATE.start_main_~i~5 66), 190664#(<= ULTIMATE.start_main_~i~5 63), 190665#(<= ULTIMATE.start_main_~i~5 64), 190670#(<= ULTIMATE.start_main_~i~5 69), 190671#(<= ULTIMATE.start_main_~i~5 70), 190668#(<= ULTIMATE.start_main_~i~5 67), 190669#(<= ULTIMATE.start_main_~i~5 68), 190674#(<= ULTIMATE.start_main_~i~5 73), 190675#(<= ULTIMATE.start_main_~i~5 74), 190672#(<= ULTIMATE.start_main_~i~5 71), 190673#(<= ULTIMATE.start_main_~i~5 72), 190678#(<= ULTIMATE.start_main_~i~5 77), 190679#(<= ULTIMATE.start_main_~i~5 78), 190676#(<= ULTIMATE.start_main_~i~5 75), 190677#(<= ULTIMATE.start_main_~i~5 76), 190682#(<= ULTIMATE.start_main_~i~5 81), 190683#(<= ULTIMATE.start_main_~i~5 82), 190680#(<= ULTIMATE.start_main_~i~5 79), 190681#(<= ULTIMATE.start_main_~i~5 80), 190686#(<= ULTIMATE.start_main_~i~5 85), 190687#(<= ULTIMATE.start_main_~i~5 86), 190684#(<= ULTIMATE.start_main_~i~5 83), 190685#(<= ULTIMATE.start_main_~i~5 84), 190690#(<= ULTIMATE.start_main_~i~5 89), 190691#(<= ULTIMATE.start_main_~i~5 90), 190688#(<= ULTIMATE.start_main_~i~5 87), 190689#(<= ULTIMATE.start_main_~i~5 88), 190694#(<= ULTIMATE.start_main_~i~5 93), 190695#(<= ULTIMATE.start_main_~i~5 94), 190692#(<= ULTIMATE.start_main_~i~5 91), 190693#(<= ULTIMATE.start_main_~i~5 92), 190698#(<= ULTIMATE.start_main_~i~5 97), 190699#(<= ULTIMATE.start_main_~i~5 98), 190696#(<= ULTIMATE.start_main_~i~5 95), 190697#(<= ULTIMATE.start_main_~i~5 96), 190702#(<= ULTIMATE.start_main_~i~5 101), 190703#(<= ULTIMATE.start_main_~i~5 102), 190700#(<= ULTIMATE.start_main_~i~5 99), 190701#(<= ULTIMATE.start_main_~i~5 100), 190706#(<= ULTIMATE.start_main_~j~5 100), 190707#(<= ULTIMATE.start_main_~j~5 99), 190704#(<= ULTIMATE.start_main_~j~5 102), 190705#(<= ULTIMATE.start_main_~j~5 101), 190710#(<= ULTIMATE.start_main_~j~5 96), 190711#(<= ULTIMATE.start_main_~j~5 95), 190708#(<= ULTIMATE.start_main_~j~5 98), 190709#(<= ULTIMATE.start_main_~j~5 97), 190714#(<= ULTIMATE.start_main_~j~5 92), 190715#(<= ULTIMATE.start_main_~j~5 91), 190712#(<= ULTIMATE.start_main_~j~5 94), 190713#(<= ULTIMATE.start_main_~j~5 93), 190718#(<= ULTIMATE.start_main_~j~5 88), 190719#(<= ULTIMATE.start_main_~j~5 87), 190716#(<= ULTIMATE.start_main_~j~5 90), 190717#(<= ULTIMATE.start_main_~j~5 89), 190722#(<= ULTIMATE.start_main_~j~5 84), 190723#(<= ULTIMATE.start_main_~j~5 83), 190720#(<= ULTIMATE.start_main_~j~5 86), 190721#(<= ULTIMATE.start_main_~j~5 85), 190726#(<= ULTIMATE.start_main_~j~5 80), 190727#(<= ULTIMATE.start_main_~j~5 79), 190724#(<= ULTIMATE.start_main_~j~5 82), 190725#(<= ULTIMATE.start_main_~j~5 81), 190730#(<= ULTIMATE.start_main_~j~5 76), 190731#(<= ULTIMATE.start_main_~j~5 75), 190728#(<= ULTIMATE.start_main_~j~5 78), 190729#(<= ULTIMATE.start_main_~j~5 77), 190734#(<= ULTIMATE.start_main_~j~5 72), 190735#(<= ULTIMATE.start_main_~j~5 71), 190732#(<= ULTIMATE.start_main_~j~5 74), 190733#(<= ULTIMATE.start_main_~j~5 73), 190738#(<= ULTIMATE.start_main_~j~5 68), 190739#(<= ULTIMATE.start_main_~j~5 67), 190736#(<= ULTIMATE.start_main_~j~5 70), 190737#(<= ULTIMATE.start_main_~j~5 69), 190742#(<= ULTIMATE.start_main_~j~5 64), 190743#(<= ULTIMATE.start_main_~j~5 63), 190740#(<= ULTIMATE.start_main_~j~5 66), 190741#(<= ULTIMATE.start_main_~j~5 65), 190746#(<= ULTIMATE.start_main_~j~5 60), 190747#(<= ULTIMATE.start_main_~j~5 59), 190744#(<= ULTIMATE.start_main_~j~5 62), 190745#(<= ULTIMATE.start_main_~j~5 61), 190750#(<= ULTIMATE.start_main_~j~5 56), 190751#(<= ULTIMATE.start_main_~j~5 55), 190748#(<= ULTIMATE.start_main_~j~5 58), 190749#(<= ULTIMATE.start_main_~j~5 57), 190754#(<= ULTIMATE.start_main_~j~5 52), 190755#(<= ULTIMATE.start_main_~j~5 51), 190752#(<= ULTIMATE.start_main_~j~5 54), 190753#(<= ULTIMATE.start_main_~j~5 53), 190758#(<= ULTIMATE.start_main_~j~5 48), 190759#(<= ULTIMATE.start_main_~j~5 47), 190756#(<= ULTIMATE.start_main_~j~5 50), 190757#(<= ULTIMATE.start_main_~j~5 49), 190762#(<= ULTIMATE.start_main_~j~5 44), 190763#(<= ULTIMATE.start_main_~j~5 43), 190760#(<= ULTIMATE.start_main_~j~5 46), 190761#(<= ULTIMATE.start_main_~j~5 45), 190766#(<= ULTIMATE.start_main_~j~5 40), 190767#(<= ULTIMATE.start_main_~j~5 39), 190764#(<= ULTIMATE.start_main_~j~5 42), 190765#(<= ULTIMATE.start_main_~j~5 41), 190770#(<= ULTIMATE.start_main_~j~5 36), 190771#(<= ULTIMATE.start_main_~j~5 35), 190768#(<= ULTIMATE.start_main_~j~5 38), 190769#(<= ULTIMATE.start_main_~j~5 37), 190774#(<= ULTIMATE.start_main_~j~5 32), 190775#(<= ULTIMATE.start_main_~j~5 31), 190772#(<= ULTIMATE.start_main_~j~5 34), 190773#(<= ULTIMATE.start_main_~j~5 33), 190778#(<= ULTIMATE.start_main_~j~5 28), 190779#(<= ULTIMATE.start_main_~j~5 27), 190776#(<= ULTIMATE.start_main_~j~5 30), 190777#(<= ULTIMATE.start_main_~j~5 29), 190782#(<= ULTIMATE.start_main_~j~5 24), 190783#(<= ULTIMATE.start_main_~j~5 23), 190780#(<= ULTIMATE.start_main_~j~5 26), 190781#(<= ULTIMATE.start_main_~j~5 25), 190786#(<= ULTIMATE.start_main_~j~5 20), 190787#(<= ULTIMATE.start_main_~j~5 19), 190784#(<= ULTIMATE.start_main_~j~5 22), 190785#(<= ULTIMATE.start_main_~j~5 21), 190790#(<= ULTIMATE.start_main_~j~5 16), 190791#(<= ULTIMATE.start_main_~j~5 15), 190788#(<= ULTIMATE.start_main_~j~5 18), 190789#(<= ULTIMATE.start_main_~j~5 17), 190794#(<= ULTIMATE.start_main_~j~5 12), 190795#(<= ULTIMATE.start_main_~j~5 11), 190792#(<= ULTIMATE.start_main_~j~5 14), 190793#(<= ULTIMATE.start_main_~j~5 13), 190798#(<= ULTIMATE.start_main_~j~5 8), 190799#(<= ULTIMATE.start_main_~j~5 7), 190796#(<= ULTIMATE.start_main_~j~5 10), 190797#(<= ULTIMATE.start_main_~j~5 9), 190802#(<= ULTIMATE.start_main_~j~5 4), 190803#(<= ULTIMATE.start_main_~j~5 3), 190800#(<= ULTIMATE.start_main_~j~5 6), 190801#(<= ULTIMATE.start_main_~j~5 5), 190806#(<= ULTIMATE.start_main_~j~5 0), 190804#(<= ULTIMATE.start_main_~j~5 2), 190805#(<= ULTIMATE.start_main_~j~5 1)] [2018-07-23 13:43:28,841 INFO L134 CoverageAnalysis]: Checked inductivity of 15759 backedges. 10506 proven. 5253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:28,842 INFO L450 AbstractCegarLoop]: Interpolant automaton has 208 states [2018-07-23 13:43:28,843 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 208 interpolants. [2018-07-23 13:43:28,846 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10919, Invalid=32137, Unknown=0, NotChecked=0, Total=43056 [2018-07-23 13:43:28,846 INFO L87 Difference]: Start difference. First operand 312 states and 313 transitions. Second operand 208 states. [2018-07-23 13:43:31,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:43:31,511 INFO L93 Difference]: Finished difference Result 522 states and 524 transitions. [2018-07-23 13:43:31,511 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 208 states. [2018-07-23 13:43:31,511 INFO L78 Accepts]: Start accepts. Automaton has 208 states. Word has length 311 [2018-07-23 13:43:31,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:43:31,512 INFO L225 Difference]: With dead ends: 522 [2018-07-23 13:43:31,512 INFO L226 Difference]: Without dead ends: 313 [2018-07-23 13:43:31,517 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 309 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15657 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=21837, Invalid=74573, Unknown=0, NotChecked=0, Total=96410 [2018-07-23 13:43:31,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2018-07-23 13:43:31,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 313. [2018-07-23 13:43:31,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 313 states. [2018-07-23 13:43:31,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 314 transitions. [2018-07-23 13:43:31,556 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 314 transitions. Word has length 311 [2018-07-23 13:43:31,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:43:31,556 INFO L471 AbstractCegarLoop]: Abstraction has 313 states and 314 transitions. [2018-07-23 13:43:31,556 INFO L472 AbstractCegarLoop]: Interpolant automaton has 208 states. [2018-07-23 13:43:31,556 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 314 transitions. [2018-07-23 13:43:31,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2018-07-23 13:43:31,557 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:43:31,557 INFO L357 BasicCegarLoop]: trace histogram [103, 103, 102, 1, 1, 1, 1] [2018-07-23 13:43:31,557 INFO L414 AbstractCegarLoop]: === Iteration 206 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:43:31,557 INFO L82 PathProgramCache]: Analyzing trace with hash -244550862, now seen corresponding path program 204 times [2018-07-23 13:43:31,557 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:43:31,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:43:32,152 INFO L134 CoverageAnalysis]: Checked inductivity of 15862 backedges. 5356 proven. 10506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:32,152 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:43:32,152 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [106] total 106 [2018-07-23 13:43:32,152 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:43:32,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:32,153 INFO L185 omatonBuilderFactory]: Interpolants [192770#(<= 85 ULTIMATE.start_main_~k~5), 192771#(<= 86 ULTIMATE.start_main_~k~5), 192768#(<= 83 ULTIMATE.start_main_~k~5), 192769#(<= 84 ULTIMATE.start_main_~k~5), 192774#(<= 89 ULTIMATE.start_main_~k~5), 192775#(<= 90 ULTIMATE.start_main_~k~5), 192772#(<= 87 ULTIMATE.start_main_~k~5), 192773#(<= 88 ULTIMATE.start_main_~k~5), 192778#(<= 93 ULTIMATE.start_main_~k~5), 192779#(<= 94 ULTIMATE.start_main_~k~5), 192776#(<= 91 ULTIMATE.start_main_~k~5), 192777#(<= 92 ULTIMATE.start_main_~k~5), 192782#(<= 97 ULTIMATE.start_main_~k~5), 192783#(<= 98 ULTIMATE.start_main_~k~5), 192780#(<= 95 ULTIMATE.start_main_~k~5), 192781#(<= 96 ULTIMATE.start_main_~k~5), 192786#(<= 101 ULTIMATE.start_main_~k~5), 192787#(<= 102 ULTIMATE.start_main_~k~5), 192784#(<= 99 ULTIMATE.start_main_~k~5), 192785#(<= 100 ULTIMATE.start_main_~k~5), 192788#(<= 103 ULTIMATE.start_main_~k~5), 192789#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 192683#true, 192686#(<= 1 ULTIMATE.start_main_~k~5), 192687#(<= 2 ULTIMATE.start_main_~k~5), 192684#false, 192685#(<= 0 ULTIMATE.start_main_~k~5), 192690#(<= 5 ULTIMATE.start_main_~k~5), 192691#(<= 6 ULTIMATE.start_main_~k~5), 192688#(<= 3 ULTIMATE.start_main_~k~5), 192689#(<= 4 ULTIMATE.start_main_~k~5), 192694#(<= 9 ULTIMATE.start_main_~k~5), 192695#(<= 10 ULTIMATE.start_main_~k~5), 192692#(<= 7 ULTIMATE.start_main_~k~5), 192693#(<= 8 ULTIMATE.start_main_~k~5), 192698#(<= 13 ULTIMATE.start_main_~k~5), 192699#(<= 14 ULTIMATE.start_main_~k~5), 192696#(<= 11 ULTIMATE.start_main_~k~5), 192697#(<= 12 ULTIMATE.start_main_~k~5), 192702#(<= 17 ULTIMATE.start_main_~k~5), 192703#(<= 18 ULTIMATE.start_main_~k~5), 192700#(<= 15 ULTIMATE.start_main_~k~5), 192701#(<= 16 ULTIMATE.start_main_~k~5), 192706#(<= 21 ULTIMATE.start_main_~k~5), 192707#(<= 22 ULTIMATE.start_main_~k~5), 192704#(<= 19 ULTIMATE.start_main_~k~5), 192705#(<= 20 ULTIMATE.start_main_~k~5), 192710#(<= 25 ULTIMATE.start_main_~k~5), 192711#(<= 26 ULTIMATE.start_main_~k~5), 192708#(<= 23 ULTIMATE.start_main_~k~5), 192709#(<= 24 ULTIMATE.start_main_~k~5), 192714#(<= 29 ULTIMATE.start_main_~k~5), 192715#(<= 30 ULTIMATE.start_main_~k~5), 192712#(<= 27 ULTIMATE.start_main_~k~5), 192713#(<= 28 ULTIMATE.start_main_~k~5), 192718#(<= 33 ULTIMATE.start_main_~k~5), 192719#(<= 34 ULTIMATE.start_main_~k~5), 192716#(<= 31 ULTIMATE.start_main_~k~5), 192717#(<= 32 ULTIMATE.start_main_~k~5), 192722#(<= 37 ULTIMATE.start_main_~k~5), 192723#(<= 38 ULTIMATE.start_main_~k~5), 192720#(<= 35 ULTIMATE.start_main_~k~5), 192721#(<= 36 ULTIMATE.start_main_~k~5), 192726#(<= 41 ULTIMATE.start_main_~k~5), 192727#(<= 42 ULTIMATE.start_main_~k~5), 192724#(<= 39 ULTIMATE.start_main_~k~5), 192725#(<= 40 ULTIMATE.start_main_~k~5), 192730#(<= 45 ULTIMATE.start_main_~k~5), 192731#(<= 46 ULTIMATE.start_main_~k~5), 192728#(<= 43 ULTIMATE.start_main_~k~5), 192729#(<= 44 ULTIMATE.start_main_~k~5), 192734#(<= 49 ULTIMATE.start_main_~k~5), 192735#(<= 50 ULTIMATE.start_main_~k~5), 192732#(<= 47 ULTIMATE.start_main_~k~5), 192733#(<= 48 ULTIMATE.start_main_~k~5), 192738#(<= 53 ULTIMATE.start_main_~k~5), 192739#(<= 54 ULTIMATE.start_main_~k~5), 192736#(<= 51 ULTIMATE.start_main_~k~5), 192737#(<= 52 ULTIMATE.start_main_~k~5), 192742#(<= 57 ULTIMATE.start_main_~k~5), 192743#(<= 58 ULTIMATE.start_main_~k~5), 192740#(<= 55 ULTIMATE.start_main_~k~5), 192741#(<= 56 ULTIMATE.start_main_~k~5), 192746#(<= 61 ULTIMATE.start_main_~k~5), 192747#(<= 62 ULTIMATE.start_main_~k~5), 192744#(<= 59 ULTIMATE.start_main_~k~5), 192745#(<= 60 ULTIMATE.start_main_~k~5), 192750#(<= 65 ULTIMATE.start_main_~k~5), 192751#(<= 66 ULTIMATE.start_main_~k~5), 192748#(<= 63 ULTIMATE.start_main_~k~5), 192749#(<= 64 ULTIMATE.start_main_~k~5), 192754#(<= 69 ULTIMATE.start_main_~k~5), 192755#(<= 70 ULTIMATE.start_main_~k~5), 192752#(<= 67 ULTIMATE.start_main_~k~5), 192753#(<= 68 ULTIMATE.start_main_~k~5), 192758#(<= 73 ULTIMATE.start_main_~k~5), 192759#(<= 74 ULTIMATE.start_main_~k~5), 192756#(<= 71 ULTIMATE.start_main_~k~5), 192757#(<= 72 ULTIMATE.start_main_~k~5), 192762#(<= 77 ULTIMATE.start_main_~k~5), 192763#(<= 78 ULTIMATE.start_main_~k~5), 192760#(<= 75 ULTIMATE.start_main_~k~5), 192761#(<= 76 ULTIMATE.start_main_~k~5), 192766#(<= 81 ULTIMATE.start_main_~k~5), 192767#(<= 82 ULTIMATE.start_main_~k~5), 192764#(<= 79 ULTIMATE.start_main_~k~5), 192765#(<= 80 ULTIMATE.start_main_~k~5)] [2018-07-23 13:43:32,153 INFO L134 CoverageAnalysis]: Checked inductivity of 15862 backedges. 5356 proven. 10506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:32,153 INFO L450 AbstractCegarLoop]: Interpolant automaton has 107 states [2018-07-23 13:43:32,154 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 107 interpolants. [2018-07-23 13:43:32,154 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5567, Invalid=5775, Unknown=0, NotChecked=0, Total=11342 [2018-07-23 13:43:32,154 INFO L87 Difference]: Start difference. First operand 313 states and 314 transitions. Second operand 107 states. [2018-07-23 13:43:32,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:43:32,612 INFO L93 Difference]: Finished difference Result 321 states and 322 transitions. [2018-07-23 13:43:32,612 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 210 states. [2018-07-23 13:43:32,612 INFO L78 Accepts]: Start accepts. Automaton has 107 states. Word has length 312 [2018-07-23 13:43:32,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:43:32,613 INFO L225 Difference]: With dead ends: 321 [2018-07-23 13:43:32,613 INFO L226 Difference]: Without dead ends: 319 [2018-07-23 13:43:32,615 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 209 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10712 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=16695, Invalid=27615, Unknown=0, NotChecked=0, Total=44310 [2018-07-23 13:43:32,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2018-07-23 13:43:32,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 315. [2018-07-23 13:43:32,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 315 states. [2018-07-23 13:43:32,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 316 transitions. [2018-07-23 13:43:32,654 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 316 transitions. Word has length 312 [2018-07-23 13:43:32,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:43:32,654 INFO L471 AbstractCegarLoop]: Abstraction has 315 states and 316 transitions. [2018-07-23 13:43:32,655 INFO L472 AbstractCegarLoop]: Interpolant automaton has 107 states. [2018-07-23 13:43:32,655 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 316 transitions. [2018-07-23 13:43:32,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2018-07-23 13:43:32,655 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:43:32,656 INFO L357 BasicCegarLoop]: trace histogram [104, 103, 103, 1, 1, 1, 1] [2018-07-23 13:43:32,656 INFO L414 AbstractCegarLoop]: === Iteration 207 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:43:32,656 INFO L82 PathProgramCache]: Analyzing trace with hash 1209888922, now seen corresponding path program 205 times [2018-07-23 13:43:32,656 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:43:32,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:43:33,605 INFO L134 CoverageAnalysis]: Checked inductivity of 16068 backedges. 10712 proven. 5356 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:33,605 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:43:33,605 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [209] total 209 [2018-07-23 13:43:33,606 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:43:33,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:33,606 INFO L185 omatonBuilderFactory]: Interpolants [194270#true, 194271#false, 194274#(<= ULTIMATE.start_main_~i~5 2), 194275#(<= ULTIMATE.start_main_~i~5 3), 194272#(<= ULTIMATE.start_main_~i~5 0), 194273#(<= ULTIMATE.start_main_~i~5 1), 194278#(<= ULTIMATE.start_main_~i~5 6), 194279#(<= ULTIMATE.start_main_~i~5 7), 194276#(<= ULTIMATE.start_main_~i~5 4), 194277#(<= ULTIMATE.start_main_~i~5 5), 194282#(<= ULTIMATE.start_main_~i~5 10), 194283#(<= ULTIMATE.start_main_~i~5 11), 194280#(<= ULTIMATE.start_main_~i~5 8), 194281#(<= ULTIMATE.start_main_~i~5 9), 194286#(<= ULTIMATE.start_main_~i~5 14), 194287#(<= ULTIMATE.start_main_~i~5 15), 194284#(<= ULTIMATE.start_main_~i~5 12), 194285#(<= ULTIMATE.start_main_~i~5 13), 194290#(<= ULTIMATE.start_main_~i~5 18), 194291#(<= ULTIMATE.start_main_~i~5 19), 194288#(<= ULTIMATE.start_main_~i~5 16), 194289#(<= ULTIMATE.start_main_~i~5 17), 194294#(<= ULTIMATE.start_main_~i~5 22), 194295#(<= ULTIMATE.start_main_~i~5 23), 194292#(<= ULTIMATE.start_main_~i~5 20), 194293#(<= ULTIMATE.start_main_~i~5 21), 194298#(<= ULTIMATE.start_main_~i~5 26), 194299#(<= ULTIMATE.start_main_~i~5 27), 194296#(<= ULTIMATE.start_main_~i~5 24), 194297#(<= ULTIMATE.start_main_~i~5 25), 194302#(<= ULTIMATE.start_main_~i~5 30), 194303#(<= ULTIMATE.start_main_~i~5 31), 194300#(<= ULTIMATE.start_main_~i~5 28), 194301#(<= ULTIMATE.start_main_~i~5 29), 194306#(<= ULTIMATE.start_main_~i~5 34), 194307#(<= ULTIMATE.start_main_~i~5 35), 194304#(<= ULTIMATE.start_main_~i~5 32), 194305#(<= ULTIMATE.start_main_~i~5 33), 194310#(<= ULTIMATE.start_main_~i~5 38), 194311#(<= ULTIMATE.start_main_~i~5 39), 194308#(<= ULTIMATE.start_main_~i~5 36), 194309#(<= ULTIMATE.start_main_~i~5 37), 194314#(<= ULTIMATE.start_main_~i~5 42), 194315#(<= ULTIMATE.start_main_~i~5 43), 194312#(<= ULTIMATE.start_main_~i~5 40), 194313#(<= ULTIMATE.start_main_~i~5 41), 194318#(<= ULTIMATE.start_main_~i~5 46), 194319#(<= ULTIMATE.start_main_~i~5 47), 194316#(<= ULTIMATE.start_main_~i~5 44), 194317#(<= ULTIMATE.start_main_~i~5 45), 194322#(<= ULTIMATE.start_main_~i~5 50), 194323#(<= ULTIMATE.start_main_~i~5 51), 194320#(<= ULTIMATE.start_main_~i~5 48), 194321#(<= ULTIMATE.start_main_~i~5 49), 194326#(<= ULTIMATE.start_main_~i~5 54), 194327#(<= ULTIMATE.start_main_~i~5 55), 194324#(<= ULTIMATE.start_main_~i~5 52), 194325#(<= ULTIMATE.start_main_~i~5 53), 194330#(<= ULTIMATE.start_main_~i~5 58), 194331#(<= ULTIMATE.start_main_~i~5 59), 194328#(<= ULTIMATE.start_main_~i~5 56), 194329#(<= ULTIMATE.start_main_~i~5 57), 194334#(<= ULTIMATE.start_main_~i~5 62), 194335#(<= ULTIMATE.start_main_~i~5 63), 194332#(<= ULTIMATE.start_main_~i~5 60), 194333#(<= ULTIMATE.start_main_~i~5 61), 194338#(<= ULTIMATE.start_main_~i~5 66), 194339#(<= ULTIMATE.start_main_~i~5 67), 194336#(<= ULTIMATE.start_main_~i~5 64), 194337#(<= ULTIMATE.start_main_~i~5 65), 194342#(<= ULTIMATE.start_main_~i~5 70), 194343#(<= ULTIMATE.start_main_~i~5 71), 194340#(<= ULTIMATE.start_main_~i~5 68), 194341#(<= ULTIMATE.start_main_~i~5 69), 194346#(<= ULTIMATE.start_main_~i~5 74), 194347#(<= ULTIMATE.start_main_~i~5 75), 194344#(<= ULTIMATE.start_main_~i~5 72), 194345#(<= ULTIMATE.start_main_~i~5 73), 194350#(<= ULTIMATE.start_main_~i~5 78), 194351#(<= ULTIMATE.start_main_~i~5 79), 194348#(<= ULTIMATE.start_main_~i~5 76), 194349#(<= ULTIMATE.start_main_~i~5 77), 194354#(<= ULTIMATE.start_main_~i~5 82), 194355#(<= ULTIMATE.start_main_~i~5 83), 194352#(<= ULTIMATE.start_main_~i~5 80), 194353#(<= ULTIMATE.start_main_~i~5 81), 194358#(<= ULTIMATE.start_main_~i~5 86), 194359#(<= ULTIMATE.start_main_~i~5 87), 194356#(<= ULTIMATE.start_main_~i~5 84), 194357#(<= ULTIMATE.start_main_~i~5 85), 194362#(<= ULTIMATE.start_main_~i~5 90), 194363#(<= ULTIMATE.start_main_~i~5 91), 194360#(<= ULTIMATE.start_main_~i~5 88), 194361#(<= ULTIMATE.start_main_~i~5 89), 194366#(<= ULTIMATE.start_main_~i~5 94), 194367#(<= ULTIMATE.start_main_~i~5 95), 194364#(<= ULTIMATE.start_main_~i~5 92), 194365#(<= ULTIMATE.start_main_~i~5 93), 194370#(<= ULTIMATE.start_main_~i~5 98), 194371#(<= ULTIMATE.start_main_~i~5 99), 194368#(<= ULTIMATE.start_main_~i~5 96), 194369#(<= ULTIMATE.start_main_~i~5 97), 194374#(<= ULTIMATE.start_main_~i~5 102), 194375#(<= ULTIMATE.start_main_~i~5 103), 194372#(<= ULTIMATE.start_main_~i~5 100), 194373#(<= ULTIMATE.start_main_~i~5 101), 194378#(<= ULTIMATE.start_main_~j~5 101), 194379#(<= ULTIMATE.start_main_~j~5 100), 194376#(<= ULTIMATE.start_main_~j~5 103), 194377#(<= ULTIMATE.start_main_~j~5 102), 194382#(<= ULTIMATE.start_main_~j~5 97), 194383#(<= ULTIMATE.start_main_~j~5 96), 194380#(<= ULTIMATE.start_main_~j~5 99), 194381#(<= ULTIMATE.start_main_~j~5 98), 194386#(<= ULTIMATE.start_main_~j~5 93), 194387#(<= ULTIMATE.start_main_~j~5 92), 194384#(<= ULTIMATE.start_main_~j~5 95), 194385#(<= ULTIMATE.start_main_~j~5 94), 194390#(<= ULTIMATE.start_main_~j~5 89), 194391#(<= ULTIMATE.start_main_~j~5 88), 194388#(<= ULTIMATE.start_main_~j~5 91), 194389#(<= ULTIMATE.start_main_~j~5 90), 194394#(<= ULTIMATE.start_main_~j~5 85), 194395#(<= ULTIMATE.start_main_~j~5 84), 194392#(<= ULTIMATE.start_main_~j~5 87), 194393#(<= ULTIMATE.start_main_~j~5 86), 194398#(<= ULTIMATE.start_main_~j~5 81), 194399#(<= ULTIMATE.start_main_~j~5 80), 194396#(<= ULTIMATE.start_main_~j~5 83), 194397#(<= ULTIMATE.start_main_~j~5 82), 194402#(<= ULTIMATE.start_main_~j~5 77), 194403#(<= ULTIMATE.start_main_~j~5 76), 194400#(<= ULTIMATE.start_main_~j~5 79), 194401#(<= ULTIMATE.start_main_~j~5 78), 194406#(<= ULTIMATE.start_main_~j~5 73), 194407#(<= ULTIMATE.start_main_~j~5 72), 194404#(<= ULTIMATE.start_main_~j~5 75), 194405#(<= ULTIMATE.start_main_~j~5 74), 194410#(<= ULTIMATE.start_main_~j~5 69), 194411#(<= ULTIMATE.start_main_~j~5 68), 194408#(<= ULTIMATE.start_main_~j~5 71), 194409#(<= ULTIMATE.start_main_~j~5 70), 194414#(<= ULTIMATE.start_main_~j~5 65), 194415#(<= ULTIMATE.start_main_~j~5 64), 194412#(<= ULTIMATE.start_main_~j~5 67), 194413#(<= ULTIMATE.start_main_~j~5 66), 194418#(<= ULTIMATE.start_main_~j~5 61), 194419#(<= ULTIMATE.start_main_~j~5 60), 194416#(<= ULTIMATE.start_main_~j~5 63), 194417#(<= ULTIMATE.start_main_~j~5 62), 194422#(<= ULTIMATE.start_main_~j~5 57), 194423#(<= ULTIMATE.start_main_~j~5 56), 194420#(<= ULTIMATE.start_main_~j~5 59), 194421#(<= ULTIMATE.start_main_~j~5 58), 194426#(<= ULTIMATE.start_main_~j~5 53), 194427#(<= ULTIMATE.start_main_~j~5 52), 194424#(<= ULTIMATE.start_main_~j~5 55), 194425#(<= ULTIMATE.start_main_~j~5 54), 194430#(<= ULTIMATE.start_main_~j~5 49), 194431#(<= ULTIMATE.start_main_~j~5 48), 194428#(<= ULTIMATE.start_main_~j~5 51), 194429#(<= ULTIMATE.start_main_~j~5 50), 194434#(<= ULTIMATE.start_main_~j~5 45), 194435#(<= ULTIMATE.start_main_~j~5 44), 194432#(<= ULTIMATE.start_main_~j~5 47), 194433#(<= ULTIMATE.start_main_~j~5 46), 194438#(<= ULTIMATE.start_main_~j~5 41), 194439#(<= ULTIMATE.start_main_~j~5 40), 194436#(<= ULTIMATE.start_main_~j~5 43), 194437#(<= ULTIMATE.start_main_~j~5 42), 194442#(<= ULTIMATE.start_main_~j~5 37), 194443#(<= ULTIMATE.start_main_~j~5 36), 194440#(<= ULTIMATE.start_main_~j~5 39), 194441#(<= ULTIMATE.start_main_~j~5 38), 194446#(<= ULTIMATE.start_main_~j~5 33), 194447#(<= ULTIMATE.start_main_~j~5 32), 194444#(<= ULTIMATE.start_main_~j~5 35), 194445#(<= ULTIMATE.start_main_~j~5 34), 194450#(<= ULTIMATE.start_main_~j~5 29), 194451#(<= ULTIMATE.start_main_~j~5 28), 194448#(<= ULTIMATE.start_main_~j~5 31), 194449#(<= ULTIMATE.start_main_~j~5 30), 194454#(<= ULTIMATE.start_main_~j~5 25), 194455#(<= ULTIMATE.start_main_~j~5 24), 194452#(<= ULTIMATE.start_main_~j~5 27), 194453#(<= ULTIMATE.start_main_~j~5 26), 194458#(<= ULTIMATE.start_main_~j~5 21), 194459#(<= ULTIMATE.start_main_~j~5 20), 194456#(<= ULTIMATE.start_main_~j~5 23), 194457#(<= ULTIMATE.start_main_~j~5 22), 194462#(<= ULTIMATE.start_main_~j~5 17), 194463#(<= ULTIMATE.start_main_~j~5 16), 194460#(<= ULTIMATE.start_main_~j~5 19), 194461#(<= ULTIMATE.start_main_~j~5 18), 194466#(<= ULTIMATE.start_main_~j~5 13), 194467#(<= ULTIMATE.start_main_~j~5 12), 194464#(<= ULTIMATE.start_main_~j~5 15), 194465#(<= ULTIMATE.start_main_~j~5 14), 194470#(<= ULTIMATE.start_main_~j~5 9), 194471#(<= ULTIMATE.start_main_~j~5 8), 194468#(<= ULTIMATE.start_main_~j~5 11), 194469#(<= ULTIMATE.start_main_~j~5 10), 194474#(<= ULTIMATE.start_main_~j~5 5), 194475#(<= ULTIMATE.start_main_~j~5 4), 194472#(<= ULTIMATE.start_main_~j~5 7), 194473#(<= ULTIMATE.start_main_~j~5 6), 194478#(<= ULTIMATE.start_main_~j~5 1), 194479#(<= ULTIMATE.start_main_~j~5 0), 194476#(<= ULTIMATE.start_main_~j~5 3), 194477#(<= ULTIMATE.start_main_~j~5 2)] [2018-07-23 13:43:33,607 INFO L134 CoverageAnalysis]: Checked inductivity of 16068 backedges. 10712 proven. 5356 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:33,607 INFO L450 AbstractCegarLoop]: Interpolant automaton has 210 states [2018-07-23 13:43:33,609 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 210 interpolants. [2018-07-23 13:43:33,610 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11129, Invalid=32761, Unknown=0, NotChecked=0, Total=43890 [2018-07-23 13:43:33,611 INFO L87 Difference]: Start difference. First operand 315 states and 316 transitions. Second operand 210 states. [2018-07-23 13:43:36,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:43:36,214 INFO L93 Difference]: Finished difference Result 527 states and 529 transitions. [2018-07-23 13:43:36,214 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 210 states. [2018-07-23 13:43:36,214 INFO L78 Accepts]: Start accepts. Automaton has 210 states. Word has length 314 [2018-07-23 13:43:36,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:43:36,215 INFO L225 Difference]: With dead ends: 527 [2018-07-23 13:43:36,215 INFO L226 Difference]: Without dead ends: 316 [2018-07-23 13:43:36,220 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 312 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15965 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=22257, Invalid=76025, Unknown=0, NotChecked=0, Total=98282 [2018-07-23 13:43:36,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2018-07-23 13:43:36,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 316. [2018-07-23 13:43:36,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 316 states. [2018-07-23 13:43:36,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 317 transitions. [2018-07-23 13:43:36,260 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 317 transitions. Word has length 314 [2018-07-23 13:43:36,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:43:36,261 INFO L471 AbstractCegarLoop]: Abstraction has 316 states and 317 transitions. [2018-07-23 13:43:36,261 INFO L472 AbstractCegarLoop]: Interpolant automaton has 210 states. [2018-07-23 13:43:36,261 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 317 transitions. [2018-07-23 13:43:36,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2018-07-23 13:43:36,261 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:43:36,262 INFO L357 BasicCegarLoop]: trace histogram [104, 104, 103, 1, 1, 1, 1] [2018-07-23 13:43:36,262 INFO L414 AbstractCegarLoop]: === Iteration 208 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:43:36,262 INFO L82 PathProgramCache]: Analyzing trace with hash -271334701, now seen corresponding path program 206 times [2018-07-23 13:43:36,262 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:43:36,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:43:36,969 INFO L134 CoverageAnalysis]: Checked inductivity of 16172 backedges. 5460 proven. 10712 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:36,970 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:43:36,970 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [107] total 107 [2018-07-23 13:43:36,970 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:43:36,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:36,970 INFO L185 omatonBuilderFactory]: Interpolants [196374#true, 196375#false, 196378#(<= 2 ULTIMATE.start_main_~k~5), 196379#(<= 3 ULTIMATE.start_main_~k~5), 196376#(<= 0 ULTIMATE.start_main_~k~5), 196377#(<= 1 ULTIMATE.start_main_~k~5), 196382#(<= 6 ULTIMATE.start_main_~k~5), 196383#(<= 7 ULTIMATE.start_main_~k~5), 196380#(<= 4 ULTIMATE.start_main_~k~5), 196381#(<= 5 ULTIMATE.start_main_~k~5), 196386#(<= 10 ULTIMATE.start_main_~k~5), 196387#(<= 11 ULTIMATE.start_main_~k~5), 196384#(<= 8 ULTIMATE.start_main_~k~5), 196385#(<= 9 ULTIMATE.start_main_~k~5), 196390#(<= 14 ULTIMATE.start_main_~k~5), 196391#(<= 15 ULTIMATE.start_main_~k~5), 196388#(<= 12 ULTIMATE.start_main_~k~5), 196389#(<= 13 ULTIMATE.start_main_~k~5), 196394#(<= 18 ULTIMATE.start_main_~k~5), 196395#(<= 19 ULTIMATE.start_main_~k~5), 196392#(<= 16 ULTIMATE.start_main_~k~5), 196393#(<= 17 ULTIMATE.start_main_~k~5), 196398#(<= 22 ULTIMATE.start_main_~k~5), 196399#(<= 23 ULTIMATE.start_main_~k~5), 196396#(<= 20 ULTIMATE.start_main_~k~5), 196397#(<= 21 ULTIMATE.start_main_~k~5), 196402#(<= 26 ULTIMATE.start_main_~k~5), 196403#(<= 27 ULTIMATE.start_main_~k~5), 196400#(<= 24 ULTIMATE.start_main_~k~5), 196401#(<= 25 ULTIMATE.start_main_~k~5), 196406#(<= 30 ULTIMATE.start_main_~k~5), 196407#(<= 31 ULTIMATE.start_main_~k~5), 196404#(<= 28 ULTIMATE.start_main_~k~5), 196405#(<= 29 ULTIMATE.start_main_~k~5), 196410#(<= 34 ULTIMATE.start_main_~k~5), 196411#(<= 35 ULTIMATE.start_main_~k~5), 196408#(<= 32 ULTIMATE.start_main_~k~5), 196409#(<= 33 ULTIMATE.start_main_~k~5), 196414#(<= 38 ULTIMATE.start_main_~k~5), 196415#(<= 39 ULTIMATE.start_main_~k~5), 196412#(<= 36 ULTIMATE.start_main_~k~5), 196413#(<= 37 ULTIMATE.start_main_~k~5), 196418#(<= 42 ULTIMATE.start_main_~k~5), 196419#(<= 43 ULTIMATE.start_main_~k~5), 196416#(<= 40 ULTIMATE.start_main_~k~5), 196417#(<= 41 ULTIMATE.start_main_~k~5), 196422#(<= 46 ULTIMATE.start_main_~k~5), 196423#(<= 47 ULTIMATE.start_main_~k~5), 196420#(<= 44 ULTIMATE.start_main_~k~5), 196421#(<= 45 ULTIMATE.start_main_~k~5), 196426#(<= 50 ULTIMATE.start_main_~k~5), 196427#(<= 51 ULTIMATE.start_main_~k~5), 196424#(<= 48 ULTIMATE.start_main_~k~5), 196425#(<= 49 ULTIMATE.start_main_~k~5), 196430#(<= 54 ULTIMATE.start_main_~k~5), 196431#(<= 55 ULTIMATE.start_main_~k~5), 196428#(<= 52 ULTIMATE.start_main_~k~5), 196429#(<= 53 ULTIMATE.start_main_~k~5), 196434#(<= 58 ULTIMATE.start_main_~k~5), 196435#(<= 59 ULTIMATE.start_main_~k~5), 196432#(<= 56 ULTIMATE.start_main_~k~5), 196433#(<= 57 ULTIMATE.start_main_~k~5), 196438#(<= 62 ULTIMATE.start_main_~k~5), 196439#(<= 63 ULTIMATE.start_main_~k~5), 196436#(<= 60 ULTIMATE.start_main_~k~5), 196437#(<= 61 ULTIMATE.start_main_~k~5), 196442#(<= 66 ULTIMATE.start_main_~k~5), 196443#(<= 67 ULTIMATE.start_main_~k~5), 196440#(<= 64 ULTIMATE.start_main_~k~5), 196441#(<= 65 ULTIMATE.start_main_~k~5), 196446#(<= 70 ULTIMATE.start_main_~k~5), 196447#(<= 71 ULTIMATE.start_main_~k~5), 196444#(<= 68 ULTIMATE.start_main_~k~5), 196445#(<= 69 ULTIMATE.start_main_~k~5), 196450#(<= 74 ULTIMATE.start_main_~k~5), 196451#(<= 75 ULTIMATE.start_main_~k~5), 196448#(<= 72 ULTIMATE.start_main_~k~5), 196449#(<= 73 ULTIMATE.start_main_~k~5), 196454#(<= 78 ULTIMATE.start_main_~k~5), 196455#(<= 79 ULTIMATE.start_main_~k~5), 196452#(<= 76 ULTIMATE.start_main_~k~5), 196453#(<= 77 ULTIMATE.start_main_~k~5), 196458#(<= 82 ULTIMATE.start_main_~k~5), 196459#(<= 83 ULTIMATE.start_main_~k~5), 196456#(<= 80 ULTIMATE.start_main_~k~5), 196457#(<= 81 ULTIMATE.start_main_~k~5), 196462#(<= 86 ULTIMATE.start_main_~k~5), 196463#(<= 87 ULTIMATE.start_main_~k~5), 196460#(<= 84 ULTIMATE.start_main_~k~5), 196461#(<= 85 ULTIMATE.start_main_~k~5), 196466#(<= 90 ULTIMATE.start_main_~k~5), 196467#(<= 91 ULTIMATE.start_main_~k~5), 196464#(<= 88 ULTIMATE.start_main_~k~5), 196465#(<= 89 ULTIMATE.start_main_~k~5), 196470#(<= 94 ULTIMATE.start_main_~k~5), 196471#(<= 95 ULTIMATE.start_main_~k~5), 196468#(<= 92 ULTIMATE.start_main_~k~5), 196469#(<= 93 ULTIMATE.start_main_~k~5), 196474#(<= 98 ULTIMATE.start_main_~k~5), 196475#(<= 99 ULTIMATE.start_main_~k~5), 196472#(<= 96 ULTIMATE.start_main_~k~5), 196473#(<= 97 ULTIMATE.start_main_~k~5), 196478#(<= 102 ULTIMATE.start_main_~k~5), 196479#(<= 103 ULTIMATE.start_main_~k~5), 196476#(<= 100 ULTIMATE.start_main_~k~5), 196477#(<= 101 ULTIMATE.start_main_~k~5), 196480#(<= 104 ULTIMATE.start_main_~k~5), 196481#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond)] [2018-07-23 13:43:36,971 INFO L134 CoverageAnalysis]: Checked inductivity of 16172 backedges. 5460 proven. 10712 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:36,971 INFO L450 AbstractCegarLoop]: Interpolant automaton has 108 states [2018-07-23 13:43:36,972 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 108 interpolants. [2018-07-23 13:43:36,972 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5673, Invalid=5883, Unknown=0, NotChecked=0, Total=11556 [2018-07-23 13:43:36,972 INFO L87 Difference]: Start difference. First operand 316 states and 317 transitions. Second operand 108 states. [2018-07-23 13:43:37,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:43:37,400 INFO L93 Difference]: Finished difference Result 324 states and 325 transitions. [2018-07-23 13:43:37,400 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 212 states. [2018-07-23 13:43:37,401 INFO L78 Accepts]: Start accepts. Automaton has 108 states. Word has length 315 [2018-07-23 13:43:37,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:43:37,401 INFO L225 Difference]: With dead ends: 324 [2018-07-23 13:43:37,401 INFO L226 Difference]: Without dead ends: 322 [2018-07-23 13:43:37,404 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 211 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10920 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=17013, Invalid=28143, Unknown=0, NotChecked=0, Total=45156 [2018-07-23 13:43:37,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2018-07-23 13:43:37,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 318. [2018-07-23 13:43:37,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2018-07-23 13:43:37,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 319 transitions. [2018-07-23 13:43:37,444 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 319 transitions. Word has length 315 [2018-07-23 13:43:37,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:43:37,444 INFO L471 AbstractCegarLoop]: Abstraction has 318 states and 319 transitions. [2018-07-23 13:43:37,444 INFO L472 AbstractCegarLoop]: Interpolant automaton has 108 states. [2018-07-23 13:43:37,444 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 319 transitions. [2018-07-23 13:43:37,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2018-07-23 13:43:37,445 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:43:37,445 INFO L357 BasicCegarLoop]: trace histogram [105, 104, 104, 1, 1, 1, 1] [2018-07-23 13:43:37,445 INFO L414 AbstractCegarLoop]: === Iteration 209 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:43:37,445 INFO L82 PathProgramCache]: Analyzing trace with hash 1240423419, now seen corresponding path program 207 times [2018-07-23 13:43:37,445 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:43:37,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:43:38,381 INFO L134 CoverageAnalysis]: Checked inductivity of 16380 backedges. 10920 proven. 5460 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:38,382 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:43:38,382 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [211] total 211 [2018-07-23 13:43:38,382 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:43:38,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:38,382 INFO L185 omatonBuilderFactory]: Interpolants [198147#(<= ULTIMATE.start_main_~j~5 40), 198146#(<= ULTIMATE.start_main_~j~5 41), 198145#(<= ULTIMATE.start_main_~j~5 42), 198144#(<= ULTIMATE.start_main_~j~5 43), 198151#(<= ULTIMATE.start_main_~j~5 36), 198150#(<= ULTIMATE.start_main_~j~5 37), 198149#(<= ULTIMATE.start_main_~j~5 38), 198148#(<= ULTIMATE.start_main_~j~5 39), 198155#(<= ULTIMATE.start_main_~j~5 32), 198154#(<= ULTIMATE.start_main_~j~5 33), 198153#(<= ULTIMATE.start_main_~j~5 34), 198152#(<= ULTIMATE.start_main_~j~5 35), 198159#(<= ULTIMATE.start_main_~j~5 28), 198158#(<= ULTIMATE.start_main_~j~5 29), 198157#(<= ULTIMATE.start_main_~j~5 30), 198156#(<= ULTIMATE.start_main_~j~5 31), 198163#(<= ULTIMATE.start_main_~j~5 24), 198162#(<= ULTIMATE.start_main_~j~5 25), 198161#(<= ULTIMATE.start_main_~j~5 26), 198160#(<= ULTIMATE.start_main_~j~5 27), 198167#(<= ULTIMATE.start_main_~j~5 20), 198166#(<= ULTIMATE.start_main_~j~5 21), 198165#(<= ULTIMATE.start_main_~j~5 22), 198164#(<= ULTIMATE.start_main_~j~5 23), 198171#(<= ULTIMATE.start_main_~j~5 16), 198170#(<= ULTIMATE.start_main_~j~5 17), 198169#(<= ULTIMATE.start_main_~j~5 18), 198168#(<= ULTIMATE.start_main_~j~5 19), 198175#(<= ULTIMATE.start_main_~j~5 12), 198174#(<= ULTIMATE.start_main_~j~5 13), 198173#(<= ULTIMATE.start_main_~j~5 14), 198172#(<= ULTIMATE.start_main_~j~5 15), 198179#(<= ULTIMATE.start_main_~j~5 8), 198178#(<= ULTIMATE.start_main_~j~5 9), 198177#(<= ULTIMATE.start_main_~j~5 10), 198176#(<= ULTIMATE.start_main_~j~5 11), 198183#(<= ULTIMATE.start_main_~j~5 4), 198182#(<= ULTIMATE.start_main_~j~5 5), 198181#(<= ULTIMATE.start_main_~j~5 6), 198180#(<= ULTIMATE.start_main_~j~5 7), 198187#(<= ULTIMATE.start_main_~j~5 0), 198186#(<= ULTIMATE.start_main_~j~5 1), 198185#(<= ULTIMATE.start_main_~j~5 2), 198184#(<= ULTIMATE.start_main_~j~5 3), 197979#(<= ULTIMATE.start_main_~i~5 1), 197978#(<= ULTIMATE.start_main_~i~5 0), 197977#false, 197976#true, 197983#(<= ULTIMATE.start_main_~i~5 5), 197982#(<= ULTIMATE.start_main_~i~5 4), 197981#(<= ULTIMATE.start_main_~i~5 3), 197980#(<= ULTIMATE.start_main_~i~5 2), 197987#(<= ULTIMATE.start_main_~i~5 9), 197986#(<= ULTIMATE.start_main_~i~5 8), 197985#(<= ULTIMATE.start_main_~i~5 7), 197984#(<= ULTIMATE.start_main_~i~5 6), 197991#(<= ULTIMATE.start_main_~i~5 13), 197990#(<= ULTIMATE.start_main_~i~5 12), 197989#(<= ULTIMATE.start_main_~i~5 11), 197988#(<= ULTIMATE.start_main_~i~5 10), 197995#(<= ULTIMATE.start_main_~i~5 17), 197994#(<= ULTIMATE.start_main_~i~5 16), 197993#(<= ULTIMATE.start_main_~i~5 15), 197992#(<= ULTIMATE.start_main_~i~5 14), 197999#(<= ULTIMATE.start_main_~i~5 21), 197998#(<= ULTIMATE.start_main_~i~5 20), 197997#(<= ULTIMATE.start_main_~i~5 19), 197996#(<= ULTIMATE.start_main_~i~5 18), 198003#(<= ULTIMATE.start_main_~i~5 25), 198002#(<= ULTIMATE.start_main_~i~5 24), 198001#(<= ULTIMATE.start_main_~i~5 23), 198000#(<= ULTIMATE.start_main_~i~5 22), 198007#(<= ULTIMATE.start_main_~i~5 29), 198006#(<= ULTIMATE.start_main_~i~5 28), 198005#(<= ULTIMATE.start_main_~i~5 27), 198004#(<= ULTIMATE.start_main_~i~5 26), 198011#(<= ULTIMATE.start_main_~i~5 33), 198010#(<= ULTIMATE.start_main_~i~5 32), 198009#(<= ULTIMATE.start_main_~i~5 31), 198008#(<= ULTIMATE.start_main_~i~5 30), 198015#(<= ULTIMATE.start_main_~i~5 37), 198014#(<= ULTIMATE.start_main_~i~5 36), 198013#(<= ULTIMATE.start_main_~i~5 35), 198012#(<= ULTIMATE.start_main_~i~5 34), 198019#(<= ULTIMATE.start_main_~i~5 41), 198018#(<= ULTIMATE.start_main_~i~5 40), 198017#(<= ULTIMATE.start_main_~i~5 39), 198016#(<= ULTIMATE.start_main_~i~5 38), 198023#(<= ULTIMATE.start_main_~i~5 45), 198022#(<= ULTIMATE.start_main_~i~5 44), 198021#(<= ULTIMATE.start_main_~i~5 43), 198020#(<= ULTIMATE.start_main_~i~5 42), 198027#(<= ULTIMATE.start_main_~i~5 49), 198026#(<= ULTIMATE.start_main_~i~5 48), 198025#(<= ULTIMATE.start_main_~i~5 47), 198024#(<= ULTIMATE.start_main_~i~5 46), 198031#(<= ULTIMATE.start_main_~i~5 53), 198030#(<= ULTIMATE.start_main_~i~5 52), 198029#(<= ULTIMATE.start_main_~i~5 51), 198028#(<= ULTIMATE.start_main_~i~5 50), 198035#(<= ULTIMATE.start_main_~i~5 57), 198034#(<= ULTIMATE.start_main_~i~5 56), 198033#(<= ULTIMATE.start_main_~i~5 55), 198032#(<= ULTIMATE.start_main_~i~5 54), 198039#(<= ULTIMATE.start_main_~i~5 61), 198038#(<= ULTIMATE.start_main_~i~5 60), 198037#(<= ULTIMATE.start_main_~i~5 59), 198036#(<= ULTIMATE.start_main_~i~5 58), 198043#(<= ULTIMATE.start_main_~i~5 65), 198042#(<= ULTIMATE.start_main_~i~5 64), 198041#(<= ULTIMATE.start_main_~i~5 63), 198040#(<= ULTIMATE.start_main_~i~5 62), 198047#(<= ULTIMATE.start_main_~i~5 69), 198046#(<= ULTIMATE.start_main_~i~5 68), 198045#(<= ULTIMATE.start_main_~i~5 67), 198044#(<= ULTIMATE.start_main_~i~5 66), 198051#(<= ULTIMATE.start_main_~i~5 73), 198050#(<= ULTIMATE.start_main_~i~5 72), 198049#(<= ULTIMATE.start_main_~i~5 71), 198048#(<= ULTIMATE.start_main_~i~5 70), 198055#(<= ULTIMATE.start_main_~i~5 77), 198054#(<= ULTIMATE.start_main_~i~5 76), 198053#(<= ULTIMATE.start_main_~i~5 75), 198052#(<= ULTIMATE.start_main_~i~5 74), 198059#(<= ULTIMATE.start_main_~i~5 81), 198058#(<= ULTIMATE.start_main_~i~5 80), 198057#(<= ULTIMATE.start_main_~i~5 79), 198056#(<= ULTIMATE.start_main_~i~5 78), 198063#(<= ULTIMATE.start_main_~i~5 85), 198062#(<= ULTIMATE.start_main_~i~5 84), 198061#(<= ULTIMATE.start_main_~i~5 83), 198060#(<= ULTIMATE.start_main_~i~5 82), 198067#(<= ULTIMATE.start_main_~i~5 89), 198066#(<= ULTIMATE.start_main_~i~5 88), 198065#(<= ULTIMATE.start_main_~i~5 87), 198064#(<= ULTIMATE.start_main_~i~5 86), 198071#(<= ULTIMATE.start_main_~i~5 93), 198070#(<= ULTIMATE.start_main_~i~5 92), 198069#(<= ULTIMATE.start_main_~i~5 91), 198068#(<= ULTIMATE.start_main_~i~5 90), 198075#(<= ULTIMATE.start_main_~i~5 97), 198074#(<= ULTIMATE.start_main_~i~5 96), 198073#(<= ULTIMATE.start_main_~i~5 95), 198072#(<= ULTIMATE.start_main_~i~5 94), 198079#(<= ULTIMATE.start_main_~i~5 101), 198078#(<= ULTIMATE.start_main_~i~5 100), 198077#(<= ULTIMATE.start_main_~i~5 99), 198076#(<= ULTIMATE.start_main_~i~5 98), 198083#(<= ULTIMATE.start_main_~j~5 104), 198082#(<= ULTIMATE.start_main_~i~5 104), 198081#(<= ULTIMATE.start_main_~i~5 103), 198080#(<= ULTIMATE.start_main_~i~5 102), 198087#(<= ULTIMATE.start_main_~j~5 100), 198086#(<= ULTIMATE.start_main_~j~5 101), 198085#(<= ULTIMATE.start_main_~j~5 102), 198084#(<= ULTIMATE.start_main_~j~5 103), 198091#(<= ULTIMATE.start_main_~j~5 96), 198090#(<= ULTIMATE.start_main_~j~5 97), 198089#(<= ULTIMATE.start_main_~j~5 98), 198088#(<= ULTIMATE.start_main_~j~5 99), 198095#(<= ULTIMATE.start_main_~j~5 92), 198094#(<= ULTIMATE.start_main_~j~5 93), 198093#(<= ULTIMATE.start_main_~j~5 94), 198092#(<= ULTIMATE.start_main_~j~5 95), 198099#(<= ULTIMATE.start_main_~j~5 88), 198098#(<= ULTIMATE.start_main_~j~5 89), 198097#(<= ULTIMATE.start_main_~j~5 90), 198096#(<= ULTIMATE.start_main_~j~5 91), 198103#(<= ULTIMATE.start_main_~j~5 84), 198102#(<= ULTIMATE.start_main_~j~5 85), 198101#(<= ULTIMATE.start_main_~j~5 86), 198100#(<= ULTIMATE.start_main_~j~5 87), 198107#(<= ULTIMATE.start_main_~j~5 80), 198106#(<= ULTIMATE.start_main_~j~5 81), 198105#(<= ULTIMATE.start_main_~j~5 82), 198104#(<= ULTIMATE.start_main_~j~5 83), 198111#(<= ULTIMATE.start_main_~j~5 76), 198110#(<= ULTIMATE.start_main_~j~5 77), 198109#(<= ULTIMATE.start_main_~j~5 78), 198108#(<= ULTIMATE.start_main_~j~5 79), 198115#(<= ULTIMATE.start_main_~j~5 72), 198114#(<= ULTIMATE.start_main_~j~5 73), 198113#(<= ULTIMATE.start_main_~j~5 74), 198112#(<= ULTIMATE.start_main_~j~5 75), 198119#(<= ULTIMATE.start_main_~j~5 68), 198118#(<= ULTIMATE.start_main_~j~5 69), 198117#(<= ULTIMATE.start_main_~j~5 70), 198116#(<= ULTIMATE.start_main_~j~5 71), 198123#(<= ULTIMATE.start_main_~j~5 64), 198122#(<= ULTIMATE.start_main_~j~5 65), 198121#(<= ULTIMATE.start_main_~j~5 66), 198120#(<= ULTIMATE.start_main_~j~5 67), 198127#(<= ULTIMATE.start_main_~j~5 60), 198126#(<= ULTIMATE.start_main_~j~5 61), 198125#(<= ULTIMATE.start_main_~j~5 62), 198124#(<= ULTIMATE.start_main_~j~5 63), 198131#(<= ULTIMATE.start_main_~j~5 56), 198130#(<= ULTIMATE.start_main_~j~5 57), 198129#(<= ULTIMATE.start_main_~j~5 58), 198128#(<= ULTIMATE.start_main_~j~5 59), 198135#(<= ULTIMATE.start_main_~j~5 52), 198134#(<= ULTIMATE.start_main_~j~5 53), 198133#(<= ULTIMATE.start_main_~j~5 54), 198132#(<= ULTIMATE.start_main_~j~5 55), 198139#(<= ULTIMATE.start_main_~j~5 48), 198138#(<= ULTIMATE.start_main_~j~5 49), 198137#(<= ULTIMATE.start_main_~j~5 50), 198136#(<= ULTIMATE.start_main_~j~5 51), 198143#(<= ULTIMATE.start_main_~j~5 44), 198142#(<= ULTIMATE.start_main_~j~5 45), 198141#(<= ULTIMATE.start_main_~j~5 46), 198140#(<= ULTIMATE.start_main_~j~5 47)] [2018-07-23 13:43:38,383 INFO L134 CoverageAnalysis]: Checked inductivity of 16380 backedges. 10920 proven. 5460 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:38,383 INFO L450 AbstractCegarLoop]: Interpolant automaton has 212 states [2018-07-23 13:43:38,385 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 212 interpolants. [2018-07-23 13:43:38,387 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11341, Invalid=33391, Unknown=0, NotChecked=0, Total=44732 [2018-07-23 13:43:38,387 INFO L87 Difference]: Start difference. First operand 318 states and 319 transitions. Second operand 212 states. [2018-07-23 13:43:40,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:43:40,306 INFO L93 Difference]: Finished difference Result 532 states and 534 transitions. [2018-07-23 13:43:40,306 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 212 states. [2018-07-23 13:43:40,306 INFO L78 Accepts]: Start accepts. Automaton has 212 states. Word has length 317 [2018-07-23 13:43:40,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:43:40,307 INFO L225 Difference]: With dead ends: 532 [2018-07-23 13:43:40,307 INFO L226 Difference]: Without dead ends: 319 [2018-07-23 13:43:40,312 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 315 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16276 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=22681, Invalid=77491, Unknown=0, NotChecked=0, Total=100172 [2018-07-23 13:43:40,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2018-07-23 13:43:40,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 319. [2018-07-23 13:43:40,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2018-07-23 13:43:40,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 320 transitions. [2018-07-23 13:43:40,352 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 320 transitions. Word has length 317 [2018-07-23 13:43:40,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:43:40,353 INFO L471 AbstractCegarLoop]: Abstraction has 319 states and 320 transitions. [2018-07-23 13:43:40,353 INFO L472 AbstractCegarLoop]: Interpolant automaton has 212 states. [2018-07-23 13:43:40,353 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 320 transitions. [2018-07-23 13:43:40,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2018-07-23 13:43:40,354 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:43:40,354 INFO L357 BasicCegarLoop]: trace histogram [105, 105, 104, 1, 1, 1, 1] [2018-07-23 13:43:40,354 INFO L414 AbstractCegarLoop]: === Iteration 210 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:43:40,354 INFO L82 PathProgramCache]: Analyzing trace with hash 601469730, now seen corresponding path program 208 times [2018-07-23 13:43:40,354 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:43:40,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:43:41,009 INFO L134 CoverageAnalysis]: Checked inductivity of 16485 backedges. 5565 proven. 10920 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:41,009 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:43:41,009 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [108] total 108 [2018-07-23 13:43:41,010 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:43:41,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:41,010 INFO L185 omatonBuilderFactory]: Interpolants [200195#(<= 93 ULTIMATE.start_main_~k~5), 200194#(<= 92 ULTIMATE.start_main_~k~5), 200193#(<= 91 ULTIMATE.start_main_~k~5), 200192#(<= 90 ULTIMATE.start_main_~k~5), 200199#(<= 97 ULTIMATE.start_main_~k~5), 200198#(<= 96 ULTIMATE.start_main_~k~5), 200197#(<= 95 ULTIMATE.start_main_~k~5), 200196#(<= 94 ULTIMATE.start_main_~k~5), 200203#(<= 101 ULTIMATE.start_main_~k~5), 200202#(<= 100 ULTIMATE.start_main_~k~5), 200201#(<= 99 ULTIMATE.start_main_~k~5), 200200#(<= 98 ULTIMATE.start_main_~k~5), 200207#(<= 105 ULTIMATE.start_main_~k~5), 200206#(<= 104 ULTIMATE.start_main_~k~5), 200205#(<= 103 ULTIMATE.start_main_~k~5), 200204#(<= 102 ULTIMATE.start_main_~k~5), 200208#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 200103#(<= 1 ULTIMATE.start_main_~k~5), 200102#(<= 0 ULTIMATE.start_main_~k~5), 200101#false, 200100#true, 200107#(<= 5 ULTIMATE.start_main_~k~5), 200106#(<= 4 ULTIMATE.start_main_~k~5), 200105#(<= 3 ULTIMATE.start_main_~k~5), 200104#(<= 2 ULTIMATE.start_main_~k~5), 200111#(<= 9 ULTIMATE.start_main_~k~5), 200110#(<= 8 ULTIMATE.start_main_~k~5), 200109#(<= 7 ULTIMATE.start_main_~k~5), 200108#(<= 6 ULTIMATE.start_main_~k~5), 200115#(<= 13 ULTIMATE.start_main_~k~5), 200114#(<= 12 ULTIMATE.start_main_~k~5), 200113#(<= 11 ULTIMATE.start_main_~k~5), 200112#(<= 10 ULTIMATE.start_main_~k~5), 200119#(<= 17 ULTIMATE.start_main_~k~5), 200118#(<= 16 ULTIMATE.start_main_~k~5), 200117#(<= 15 ULTIMATE.start_main_~k~5), 200116#(<= 14 ULTIMATE.start_main_~k~5), 200123#(<= 21 ULTIMATE.start_main_~k~5), 200122#(<= 20 ULTIMATE.start_main_~k~5), 200121#(<= 19 ULTIMATE.start_main_~k~5), 200120#(<= 18 ULTIMATE.start_main_~k~5), 200127#(<= 25 ULTIMATE.start_main_~k~5), 200126#(<= 24 ULTIMATE.start_main_~k~5), 200125#(<= 23 ULTIMATE.start_main_~k~5), 200124#(<= 22 ULTIMATE.start_main_~k~5), 200131#(<= 29 ULTIMATE.start_main_~k~5), 200130#(<= 28 ULTIMATE.start_main_~k~5), 200129#(<= 27 ULTIMATE.start_main_~k~5), 200128#(<= 26 ULTIMATE.start_main_~k~5), 200135#(<= 33 ULTIMATE.start_main_~k~5), 200134#(<= 32 ULTIMATE.start_main_~k~5), 200133#(<= 31 ULTIMATE.start_main_~k~5), 200132#(<= 30 ULTIMATE.start_main_~k~5), 200139#(<= 37 ULTIMATE.start_main_~k~5), 200138#(<= 36 ULTIMATE.start_main_~k~5), 200137#(<= 35 ULTIMATE.start_main_~k~5), 200136#(<= 34 ULTIMATE.start_main_~k~5), 200143#(<= 41 ULTIMATE.start_main_~k~5), 200142#(<= 40 ULTIMATE.start_main_~k~5), 200141#(<= 39 ULTIMATE.start_main_~k~5), 200140#(<= 38 ULTIMATE.start_main_~k~5), 200147#(<= 45 ULTIMATE.start_main_~k~5), 200146#(<= 44 ULTIMATE.start_main_~k~5), 200145#(<= 43 ULTIMATE.start_main_~k~5), 200144#(<= 42 ULTIMATE.start_main_~k~5), 200151#(<= 49 ULTIMATE.start_main_~k~5), 200150#(<= 48 ULTIMATE.start_main_~k~5), 200149#(<= 47 ULTIMATE.start_main_~k~5), 200148#(<= 46 ULTIMATE.start_main_~k~5), 200155#(<= 53 ULTIMATE.start_main_~k~5), 200154#(<= 52 ULTIMATE.start_main_~k~5), 200153#(<= 51 ULTIMATE.start_main_~k~5), 200152#(<= 50 ULTIMATE.start_main_~k~5), 200159#(<= 57 ULTIMATE.start_main_~k~5), 200158#(<= 56 ULTIMATE.start_main_~k~5), 200157#(<= 55 ULTIMATE.start_main_~k~5), 200156#(<= 54 ULTIMATE.start_main_~k~5), 200163#(<= 61 ULTIMATE.start_main_~k~5), 200162#(<= 60 ULTIMATE.start_main_~k~5), 200161#(<= 59 ULTIMATE.start_main_~k~5), 200160#(<= 58 ULTIMATE.start_main_~k~5), 200167#(<= 65 ULTIMATE.start_main_~k~5), 200166#(<= 64 ULTIMATE.start_main_~k~5), 200165#(<= 63 ULTIMATE.start_main_~k~5), 200164#(<= 62 ULTIMATE.start_main_~k~5), 200171#(<= 69 ULTIMATE.start_main_~k~5), 200170#(<= 68 ULTIMATE.start_main_~k~5), 200169#(<= 67 ULTIMATE.start_main_~k~5), 200168#(<= 66 ULTIMATE.start_main_~k~5), 200175#(<= 73 ULTIMATE.start_main_~k~5), 200174#(<= 72 ULTIMATE.start_main_~k~5), 200173#(<= 71 ULTIMATE.start_main_~k~5), 200172#(<= 70 ULTIMATE.start_main_~k~5), 200179#(<= 77 ULTIMATE.start_main_~k~5), 200178#(<= 76 ULTIMATE.start_main_~k~5), 200177#(<= 75 ULTIMATE.start_main_~k~5), 200176#(<= 74 ULTIMATE.start_main_~k~5), 200183#(<= 81 ULTIMATE.start_main_~k~5), 200182#(<= 80 ULTIMATE.start_main_~k~5), 200181#(<= 79 ULTIMATE.start_main_~k~5), 200180#(<= 78 ULTIMATE.start_main_~k~5), 200187#(<= 85 ULTIMATE.start_main_~k~5), 200186#(<= 84 ULTIMATE.start_main_~k~5), 200185#(<= 83 ULTIMATE.start_main_~k~5), 200184#(<= 82 ULTIMATE.start_main_~k~5), 200191#(<= 89 ULTIMATE.start_main_~k~5), 200190#(<= 88 ULTIMATE.start_main_~k~5), 200189#(<= 87 ULTIMATE.start_main_~k~5), 200188#(<= 86 ULTIMATE.start_main_~k~5)] [2018-07-23 13:43:41,011 INFO L134 CoverageAnalysis]: Checked inductivity of 16485 backedges. 5565 proven. 10920 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:41,011 INFO L450 AbstractCegarLoop]: Interpolant automaton has 109 states [2018-07-23 13:43:41,011 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 109 interpolants. [2018-07-23 13:43:41,012 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5780, Invalid=5992, Unknown=0, NotChecked=0, Total=11772 [2018-07-23 13:43:41,012 INFO L87 Difference]: Start difference. First operand 319 states and 320 transitions. Second operand 109 states. [2018-07-23 13:43:41,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:43:41,480 INFO L93 Difference]: Finished difference Result 327 states and 328 transitions. [2018-07-23 13:43:41,480 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 214 states. [2018-07-23 13:43:41,480 INFO L78 Accepts]: Start accepts. Automaton has 109 states. Word has length 318 [2018-07-23 13:43:41,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:43:41,481 INFO L225 Difference]: With dead ends: 327 [2018-07-23 13:43:41,481 INFO L226 Difference]: Without dead ends: 325 [2018-07-23 13:43:41,483 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 213 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11130 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=17334, Invalid=28676, Unknown=0, NotChecked=0, Total=46010 [2018-07-23 13:43:41,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2018-07-23 13:43:41,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 321. [2018-07-23 13:43:41,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2018-07-23 13:43:41,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 322 transitions. [2018-07-23 13:43:41,524 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 322 transitions. Word has length 318 [2018-07-23 13:43:41,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:43:41,525 INFO L471 AbstractCegarLoop]: Abstraction has 321 states and 322 transitions. [2018-07-23 13:43:41,525 INFO L472 AbstractCegarLoop]: Interpolant automaton has 109 states. [2018-07-23 13:43:41,525 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 322 transitions. [2018-07-23 13:43:41,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2018-07-23 13:43:41,526 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:43:41,527 INFO L357 BasicCegarLoop]: trace histogram [106, 105, 105, 1, 1, 1, 1] [2018-07-23 13:43:41,527 INFO L414 AbstractCegarLoop]: === Iteration 211 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:43:41,527 INFO L82 PathProgramCache]: Analyzing trace with hash -1808108406, now seen corresponding path program 209 times [2018-07-23 13:43:41,527 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:43:41,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:43:42,542 INFO L134 CoverageAnalysis]: Checked inductivity of 16695 backedges. 11130 proven. 5565 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:42,542 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:43:42,542 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [213] total 213 [2018-07-23 13:43:42,543 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:43:42,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:42,543 INFO L185 omatonBuilderFactory]: Interpolants [201731#(<= ULTIMATE.start_main_~i~5 12), 201730#(<= ULTIMATE.start_main_~i~5 11), 201729#(<= ULTIMATE.start_main_~i~5 10), 201728#(<= ULTIMATE.start_main_~i~5 9), 201735#(<= ULTIMATE.start_main_~i~5 16), 201734#(<= ULTIMATE.start_main_~i~5 15), 201733#(<= ULTIMATE.start_main_~i~5 14), 201732#(<= ULTIMATE.start_main_~i~5 13), 201739#(<= ULTIMATE.start_main_~i~5 20), 201738#(<= ULTIMATE.start_main_~i~5 19), 201737#(<= ULTIMATE.start_main_~i~5 18), 201736#(<= ULTIMATE.start_main_~i~5 17), 201743#(<= ULTIMATE.start_main_~i~5 24), 201742#(<= ULTIMATE.start_main_~i~5 23), 201741#(<= ULTIMATE.start_main_~i~5 22), 201740#(<= ULTIMATE.start_main_~i~5 21), 201747#(<= ULTIMATE.start_main_~i~5 28), 201746#(<= ULTIMATE.start_main_~i~5 27), 201745#(<= ULTIMATE.start_main_~i~5 26), 201744#(<= ULTIMATE.start_main_~i~5 25), 201751#(<= ULTIMATE.start_main_~i~5 32), 201750#(<= ULTIMATE.start_main_~i~5 31), 201749#(<= ULTIMATE.start_main_~i~5 30), 201748#(<= ULTIMATE.start_main_~i~5 29), 201755#(<= ULTIMATE.start_main_~i~5 36), 201754#(<= ULTIMATE.start_main_~i~5 35), 201753#(<= ULTIMATE.start_main_~i~5 34), 201752#(<= ULTIMATE.start_main_~i~5 33), 201759#(<= ULTIMATE.start_main_~i~5 40), 201758#(<= ULTIMATE.start_main_~i~5 39), 201757#(<= ULTIMATE.start_main_~i~5 38), 201756#(<= ULTIMATE.start_main_~i~5 37), 201763#(<= ULTIMATE.start_main_~i~5 44), 201762#(<= ULTIMATE.start_main_~i~5 43), 201761#(<= ULTIMATE.start_main_~i~5 42), 201760#(<= ULTIMATE.start_main_~i~5 41), 201767#(<= ULTIMATE.start_main_~i~5 48), 201766#(<= ULTIMATE.start_main_~i~5 47), 201765#(<= ULTIMATE.start_main_~i~5 46), 201764#(<= ULTIMATE.start_main_~i~5 45), 201771#(<= ULTIMATE.start_main_~i~5 52), 201770#(<= ULTIMATE.start_main_~i~5 51), 201769#(<= ULTIMATE.start_main_~i~5 50), 201768#(<= ULTIMATE.start_main_~i~5 49), 201775#(<= ULTIMATE.start_main_~i~5 56), 201774#(<= ULTIMATE.start_main_~i~5 55), 201773#(<= ULTIMATE.start_main_~i~5 54), 201772#(<= ULTIMATE.start_main_~i~5 53), 201779#(<= ULTIMATE.start_main_~i~5 60), 201778#(<= ULTIMATE.start_main_~i~5 59), 201777#(<= ULTIMATE.start_main_~i~5 58), 201776#(<= ULTIMATE.start_main_~i~5 57), 201783#(<= ULTIMATE.start_main_~i~5 64), 201782#(<= ULTIMATE.start_main_~i~5 63), 201781#(<= ULTIMATE.start_main_~i~5 62), 201780#(<= ULTIMATE.start_main_~i~5 61), 201787#(<= ULTIMATE.start_main_~i~5 68), 201786#(<= ULTIMATE.start_main_~i~5 67), 201785#(<= ULTIMATE.start_main_~i~5 66), 201784#(<= ULTIMATE.start_main_~i~5 65), 201791#(<= ULTIMATE.start_main_~i~5 72), 201790#(<= ULTIMATE.start_main_~i~5 71), 201789#(<= ULTIMATE.start_main_~i~5 70), 201788#(<= ULTIMATE.start_main_~i~5 69), 201795#(<= ULTIMATE.start_main_~i~5 76), 201794#(<= ULTIMATE.start_main_~i~5 75), 201793#(<= ULTIMATE.start_main_~i~5 74), 201792#(<= ULTIMATE.start_main_~i~5 73), 201799#(<= ULTIMATE.start_main_~i~5 80), 201798#(<= ULTIMATE.start_main_~i~5 79), 201797#(<= ULTIMATE.start_main_~i~5 78), 201796#(<= ULTIMATE.start_main_~i~5 77), 201803#(<= ULTIMATE.start_main_~i~5 84), 201802#(<= ULTIMATE.start_main_~i~5 83), 201801#(<= ULTIMATE.start_main_~i~5 82), 201800#(<= ULTIMATE.start_main_~i~5 81), 201807#(<= ULTIMATE.start_main_~i~5 88), 201806#(<= ULTIMATE.start_main_~i~5 87), 201805#(<= ULTIMATE.start_main_~i~5 86), 201804#(<= ULTIMATE.start_main_~i~5 85), 201811#(<= ULTIMATE.start_main_~i~5 92), 201810#(<= ULTIMATE.start_main_~i~5 91), 201809#(<= ULTIMATE.start_main_~i~5 90), 201808#(<= ULTIMATE.start_main_~i~5 89), 201815#(<= ULTIMATE.start_main_~i~5 96), 201814#(<= ULTIMATE.start_main_~i~5 95), 201813#(<= ULTIMATE.start_main_~i~5 94), 201812#(<= ULTIMATE.start_main_~i~5 93), 201819#(<= ULTIMATE.start_main_~i~5 100), 201818#(<= ULTIMATE.start_main_~i~5 99), 201817#(<= ULTIMATE.start_main_~i~5 98), 201816#(<= ULTIMATE.start_main_~i~5 97), 201823#(<= ULTIMATE.start_main_~i~5 104), 201822#(<= ULTIMATE.start_main_~i~5 103), 201821#(<= ULTIMATE.start_main_~i~5 102), 201820#(<= ULTIMATE.start_main_~i~5 101), 201827#(<= ULTIMATE.start_main_~j~5 103), 201826#(<= ULTIMATE.start_main_~j~5 104), 201825#(<= ULTIMATE.start_main_~j~5 105), 201824#(<= ULTIMATE.start_main_~i~5 105), 201831#(<= ULTIMATE.start_main_~j~5 99), 201830#(<= ULTIMATE.start_main_~j~5 100), 201829#(<= ULTIMATE.start_main_~j~5 101), 201828#(<= ULTIMATE.start_main_~j~5 102), 201835#(<= ULTIMATE.start_main_~j~5 95), 201834#(<= ULTIMATE.start_main_~j~5 96), 201833#(<= ULTIMATE.start_main_~j~5 97), 201832#(<= ULTIMATE.start_main_~j~5 98), 201839#(<= ULTIMATE.start_main_~j~5 91), 201838#(<= ULTIMATE.start_main_~j~5 92), 201837#(<= ULTIMATE.start_main_~j~5 93), 201836#(<= ULTIMATE.start_main_~j~5 94), 201843#(<= ULTIMATE.start_main_~j~5 87), 201842#(<= ULTIMATE.start_main_~j~5 88), 201841#(<= ULTIMATE.start_main_~j~5 89), 201840#(<= ULTIMATE.start_main_~j~5 90), 201847#(<= ULTIMATE.start_main_~j~5 83), 201846#(<= ULTIMATE.start_main_~j~5 84), 201845#(<= ULTIMATE.start_main_~j~5 85), 201844#(<= ULTIMATE.start_main_~j~5 86), 201851#(<= ULTIMATE.start_main_~j~5 79), 201850#(<= ULTIMATE.start_main_~j~5 80), 201849#(<= ULTIMATE.start_main_~j~5 81), 201848#(<= ULTIMATE.start_main_~j~5 82), 201855#(<= ULTIMATE.start_main_~j~5 75), 201854#(<= ULTIMATE.start_main_~j~5 76), 201853#(<= ULTIMATE.start_main_~j~5 77), 201852#(<= ULTIMATE.start_main_~j~5 78), 201859#(<= ULTIMATE.start_main_~j~5 71), 201858#(<= ULTIMATE.start_main_~j~5 72), 201857#(<= ULTIMATE.start_main_~j~5 73), 201856#(<= ULTIMATE.start_main_~j~5 74), 201863#(<= ULTIMATE.start_main_~j~5 67), 201862#(<= ULTIMATE.start_main_~j~5 68), 201861#(<= ULTIMATE.start_main_~j~5 69), 201860#(<= ULTIMATE.start_main_~j~5 70), 201867#(<= ULTIMATE.start_main_~j~5 63), 201866#(<= ULTIMATE.start_main_~j~5 64), 201865#(<= ULTIMATE.start_main_~j~5 65), 201864#(<= ULTIMATE.start_main_~j~5 66), 201871#(<= ULTIMATE.start_main_~j~5 59), 201870#(<= ULTIMATE.start_main_~j~5 60), 201869#(<= ULTIMATE.start_main_~j~5 61), 201868#(<= ULTIMATE.start_main_~j~5 62), 201875#(<= ULTIMATE.start_main_~j~5 55), 201874#(<= ULTIMATE.start_main_~j~5 56), 201873#(<= ULTIMATE.start_main_~j~5 57), 201872#(<= ULTIMATE.start_main_~j~5 58), 201879#(<= ULTIMATE.start_main_~j~5 51), 201878#(<= ULTIMATE.start_main_~j~5 52), 201877#(<= ULTIMATE.start_main_~j~5 53), 201876#(<= ULTIMATE.start_main_~j~5 54), 201883#(<= ULTIMATE.start_main_~j~5 47), 201882#(<= ULTIMATE.start_main_~j~5 48), 201881#(<= ULTIMATE.start_main_~j~5 49), 201880#(<= ULTIMATE.start_main_~j~5 50), 201887#(<= ULTIMATE.start_main_~j~5 43), 201886#(<= ULTIMATE.start_main_~j~5 44), 201885#(<= ULTIMATE.start_main_~j~5 45), 201884#(<= ULTIMATE.start_main_~j~5 46), 201891#(<= ULTIMATE.start_main_~j~5 39), 201890#(<= ULTIMATE.start_main_~j~5 40), 201889#(<= ULTIMATE.start_main_~j~5 41), 201888#(<= ULTIMATE.start_main_~j~5 42), 201895#(<= ULTIMATE.start_main_~j~5 35), 201894#(<= ULTIMATE.start_main_~j~5 36), 201893#(<= ULTIMATE.start_main_~j~5 37), 201892#(<= ULTIMATE.start_main_~j~5 38), 201899#(<= ULTIMATE.start_main_~j~5 31), 201898#(<= ULTIMATE.start_main_~j~5 32), 201897#(<= ULTIMATE.start_main_~j~5 33), 201896#(<= ULTIMATE.start_main_~j~5 34), 201903#(<= ULTIMATE.start_main_~j~5 27), 201902#(<= ULTIMATE.start_main_~j~5 28), 201901#(<= ULTIMATE.start_main_~j~5 29), 201900#(<= ULTIMATE.start_main_~j~5 30), 201907#(<= ULTIMATE.start_main_~j~5 23), 201906#(<= ULTIMATE.start_main_~j~5 24), 201905#(<= ULTIMATE.start_main_~j~5 25), 201904#(<= ULTIMATE.start_main_~j~5 26), 201911#(<= ULTIMATE.start_main_~j~5 19), 201910#(<= ULTIMATE.start_main_~j~5 20), 201909#(<= ULTIMATE.start_main_~j~5 21), 201908#(<= ULTIMATE.start_main_~j~5 22), 201915#(<= ULTIMATE.start_main_~j~5 15), 201914#(<= ULTIMATE.start_main_~j~5 16), 201913#(<= ULTIMATE.start_main_~j~5 17), 201912#(<= ULTIMATE.start_main_~j~5 18), 201919#(<= ULTIMATE.start_main_~j~5 11), 201918#(<= ULTIMATE.start_main_~j~5 12), 201917#(<= ULTIMATE.start_main_~j~5 13), 201916#(<= ULTIMATE.start_main_~j~5 14), 201923#(<= ULTIMATE.start_main_~j~5 7), 201922#(<= ULTIMATE.start_main_~j~5 8), 201921#(<= ULTIMATE.start_main_~j~5 9), 201920#(<= ULTIMATE.start_main_~j~5 10), 201927#(<= ULTIMATE.start_main_~j~5 3), 201926#(<= ULTIMATE.start_main_~j~5 4), 201925#(<= ULTIMATE.start_main_~j~5 5), 201924#(<= ULTIMATE.start_main_~j~5 6), 201930#(<= ULTIMATE.start_main_~j~5 0), 201929#(<= ULTIMATE.start_main_~j~5 1), 201928#(<= ULTIMATE.start_main_~j~5 2), 201719#(<= ULTIMATE.start_main_~i~5 0), 201718#false, 201717#true, 201723#(<= ULTIMATE.start_main_~i~5 4), 201722#(<= ULTIMATE.start_main_~i~5 3), 201721#(<= ULTIMATE.start_main_~i~5 2), 201720#(<= ULTIMATE.start_main_~i~5 1), 201727#(<= ULTIMATE.start_main_~i~5 8), 201726#(<= ULTIMATE.start_main_~i~5 7), 201725#(<= ULTIMATE.start_main_~i~5 6), 201724#(<= ULTIMATE.start_main_~i~5 5)] [2018-07-23 13:43:42,544 INFO L134 CoverageAnalysis]: Checked inductivity of 16695 backedges. 11130 proven. 5565 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:42,544 INFO L450 AbstractCegarLoop]: Interpolant automaton has 214 states [2018-07-23 13:43:42,546 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 214 interpolants. [2018-07-23 13:43:42,547 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11555, Invalid=34027, Unknown=0, NotChecked=0, Total=45582 [2018-07-23 13:43:42,548 INFO L87 Difference]: Start difference. First operand 321 states and 322 transitions. Second operand 214 states. [2018-07-23 13:43:44,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:43:44,417 INFO L93 Difference]: Finished difference Result 537 states and 539 transitions. [2018-07-23 13:43:44,417 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 214 states. [2018-07-23 13:43:44,417 INFO L78 Accepts]: Start accepts. Automaton has 214 states. Word has length 320 [2018-07-23 13:43:44,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:43:44,417 INFO L225 Difference]: With dead ends: 537 [2018-07-23 13:43:44,418 INFO L226 Difference]: Without dead ends: 322 [2018-07-23 13:43:44,423 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 318 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16590 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=23109, Invalid=78971, Unknown=0, NotChecked=0, Total=102080 [2018-07-23 13:43:44,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2018-07-23 13:43:44,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 322. [2018-07-23 13:43:44,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 322 states. [2018-07-23 13:43:44,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 323 transitions. [2018-07-23 13:43:44,464 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 323 transitions. Word has length 320 [2018-07-23 13:43:44,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:43:44,464 INFO L471 AbstractCegarLoop]: Abstraction has 322 states and 323 transitions. [2018-07-23 13:43:44,464 INFO L472 AbstractCegarLoop]: Interpolant automaton has 214 states. [2018-07-23 13:43:44,464 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 323 transitions. [2018-07-23 13:43:44,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2018-07-23 13:43:44,465 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:43:44,465 INFO L357 BasicCegarLoop]: trace histogram [106, 106, 105, 1, 1, 1, 1] [2018-07-23 13:43:44,465 INFO L414 AbstractCegarLoop]: === Iteration 212 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:43:44,465 INFO L82 PathProgramCache]: Analyzing trace with hash -1582401533, now seen corresponding path program 210 times [2018-07-23 13:43:44,466 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:43:44,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:43:45,149 INFO L134 CoverageAnalysis]: Checked inductivity of 16801 backedges. 5671 proven. 11130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:45,149 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:43:45,149 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [109] total 109 [2018-07-23 13:43:45,150 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:43:45,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:45,150 INFO L185 omatonBuilderFactory]: Interpolants [203863#(<= 0 ULTIMATE.start_main_~k~5), 203862#false, 203861#true, 203867#(<= 4 ULTIMATE.start_main_~k~5), 203866#(<= 3 ULTIMATE.start_main_~k~5), 203865#(<= 2 ULTIMATE.start_main_~k~5), 203864#(<= 1 ULTIMATE.start_main_~k~5), 203871#(<= 8 ULTIMATE.start_main_~k~5), 203870#(<= 7 ULTIMATE.start_main_~k~5), 203869#(<= 6 ULTIMATE.start_main_~k~5), 203868#(<= 5 ULTIMATE.start_main_~k~5), 203875#(<= 12 ULTIMATE.start_main_~k~5), 203874#(<= 11 ULTIMATE.start_main_~k~5), 203873#(<= 10 ULTIMATE.start_main_~k~5), 203872#(<= 9 ULTIMATE.start_main_~k~5), 203879#(<= 16 ULTIMATE.start_main_~k~5), 203878#(<= 15 ULTIMATE.start_main_~k~5), 203877#(<= 14 ULTIMATE.start_main_~k~5), 203876#(<= 13 ULTIMATE.start_main_~k~5), 203883#(<= 20 ULTIMATE.start_main_~k~5), 203882#(<= 19 ULTIMATE.start_main_~k~5), 203881#(<= 18 ULTIMATE.start_main_~k~5), 203880#(<= 17 ULTIMATE.start_main_~k~5), 203887#(<= 24 ULTIMATE.start_main_~k~5), 203886#(<= 23 ULTIMATE.start_main_~k~5), 203885#(<= 22 ULTIMATE.start_main_~k~5), 203884#(<= 21 ULTIMATE.start_main_~k~5), 203891#(<= 28 ULTIMATE.start_main_~k~5), 203890#(<= 27 ULTIMATE.start_main_~k~5), 203889#(<= 26 ULTIMATE.start_main_~k~5), 203888#(<= 25 ULTIMATE.start_main_~k~5), 203895#(<= 32 ULTIMATE.start_main_~k~5), 203894#(<= 31 ULTIMATE.start_main_~k~5), 203893#(<= 30 ULTIMATE.start_main_~k~5), 203892#(<= 29 ULTIMATE.start_main_~k~5), 203899#(<= 36 ULTIMATE.start_main_~k~5), 203898#(<= 35 ULTIMATE.start_main_~k~5), 203897#(<= 34 ULTIMATE.start_main_~k~5), 203896#(<= 33 ULTIMATE.start_main_~k~5), 203903#(<= 40 ULTIMATE.start_main_~k~5), 203902#(<= 39 ULTIMATE.start_main_~k~5), 203901#(<= 38 ULTIMATE.start_main_~k~5), 203900#(<= 37 ULTIMATE.start_main_~k~5), 203907#(<= 44 ULTIMATE.start_main_~k~5), 203906#(<= 43 ULTIMATE.start_main_~k~5), 203905#(<= 42 ULTIMATE.start_main_~k~5), 203904#(<= 41 ULTIMATE.start_main_~k~5), 203911#(<= 48 ULTIMATE.start_main_~k~5), 203910#(<= 47 ULTIMATE.start_main_~k~5), 203909#(<= 46 ULTIMATE.start_main_~k~5), 203908#(<= 45 ULTIMATE.start_main_~k~5), 203915#(<= 52 ULTIMATE.start_main_~k~5), 203914#(<= 51 ULTIMATE.start_main_~k~5), 203913#(<= 50 ULTIMATE.start_main_~k~5), 203912#(<= 49 ULTIMATE.start_main_~k~5), 203919#(<= 56 ULTIMATE.start_main_~k~5), 203918#(<= 55 ULTIMATE.start_main_~k~5), 203917#(<= 54 ULTIMATE.start_main_~k~5), 203916#(<= 53 ULTIMATE.start_main_~k~5), 203923#(<= 60 ULTIMATE.start_main_~k~5), 203922#(<= 59 ULTIMATE.start_main_~k~5), 203921#(<= 58 ULTIMATE.start_main_~k~5), 203920#(<= 57 ULTIMATE.start_main_~k~5), 203927#(<= 64 ULTIMATE.start_main_~k~5), 203926#(<= 63 ULTIMATE.start_main_~k~5), 203925#(<= 62 ULTIMATE.start_main_~k~5), 203924#(<= 61 ULTIMATE.start_main_~k~5), 203931#(<= 68 ULTIMATE.start_main_~k~5), 203930#(<= 67 ULTIMATE.start_main_~k~5), 203929#(<= 66 ULTIMATE.start_main_~k~5), 203928#(<= 65 ULTIMATE.start_main_~k~5), 203935#(<= 72 ULTIMATE.start_main_~k~5), 203934#(<= 71 ULTIMATE.start_main_~k~5), 203933#(<= 70 ULTIMATE.start_main_~k~5), 203932#(<= 69 ULTIMATE.start_main_~k~5), 203939#(<= 76 ULTIMATE.start_main_~k~5), 203938#(<= 75 ULTIMATE.start_main_~k~5), 203937#(<= 74 ULTIMATE.start_main_~k~5), 203936#(<= 73 ULTIMATE.start_main_~k~5), 203943#(<= 80 ULTIMATE.start_main_~k~5), 203942#(<= 79 ULTIMATE.start_main_~k~5), 203941#(<= 78 ULTIMATE.start_main_~k~5), 203940#(<= 77 ULTIMATE.start_main_~k~5), 203947#(<= 84 ULTIMATE.start_main_~k~5), 203946#(<= 83 ULTIMATE.start_main_~k~5), 203945#(<= 82 ULTIMATE.start_main_~k~5), 203944#(<= 81 ULTIMATE.start_main_~k~5), 203951#(<= 88 ULTIMATE.start_main_~k~5), 203950#(<= 87 ULTIMATE.start_main_~k~5), 203949#(<= 86 ULTIMATE.start_main_~k~5), 203948#(<= 85 ULTIMATE.start_main_~k~5), 203955#(<= 92 ULTIMATE.start_main_~k~5), 203954#(<= 91 ULTIMATE.start_main_~k~5), 203953#(<= 90 ULTIMATE.start_main_~k~5), 203952#(<= 89 ULTIMATE.start_main_~k~5), 203959#(<= 96 ULTIMATE.start_main_~k~5), 203958#(<= 95 ULTIMATE.start_main_~k~5), 203957#(<= 94 ULTIMATE.start_main_~k~5), 203956#(<= 93 ULTIMATE.start_main_~k~5), 203963#(<= 100 ULTIMATE.start_main_~k~5), 203962#(<= 99 ULTIMATE.start_main_~k~5), 203961#(<= 98 ULTIMATE.start_main_~k~5), 203960#(<= 97 ULTIMATE.start_main_~k~5), 203967#(<= 104 ULTIMATE.start_main_~k~5), 203966#(<= 103 ULTIMATE.start_main_~k~5), 203965#(<= 102 ULTIMATE.start_main_~k~5), 203964#(<= 101 ULTIMATE.start_main_~k~5), 203970#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 203969#(<= 106 ULTIMATE.start_main_~k~5), 203968#(<= 105 ULTIMATE.start_main_~k~5)] [2018-07-23 13:43:45,151 INFO L134 CoverageAnalysis]: Checked inductivity of 16801 backedges. 5671 proven. 11130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:45,151 INFO L450 AbstractCegarLoop]: Interpolant automaton has 110 states [2018-07-23 13:43:45,151 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 110 interpolants. [2018-07-23 13:43:45,152 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5888, Invalid=6102, Unknown=0, NotChecked=0, Total=11990 [2018-07-23 13:43:45,152 INFO L87 Difference]: Start difference. First operand 322 states and 323 transitions. Second operand 110 states. [2018-07-23 13:43:45,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:43:45,611 INFO L93 Difference]: Finished difference Result 330 states and 331 transitions. [2018-07-23 13:43:45,612 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 216 states. [2018-07-23 13:43:45,612 INFO L78 Accepts]: Start accepts. Automaton has 110 states. Word has length 321 [2018-07-23 13:43:45,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:43:45,612 INFO L225 Difference]: With dead ends: 330 [2018-07-23 13:43:45,612 INFO L226 Difference]: Without dead ends: 328 [2018-07-23 13:43:45,615 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 215 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11342 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17658, Invalid=29214, Unknown=0, NotChecked=0, Total=46872 [2018-07-23 13:43:45,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2018-07-23 13:43:45,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 324. [2018-07-23 13:43:45,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 324 states. [2018-07-23 13:43:45,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 325 transitions. [2018-07-23 13:43:45,657 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 325 transitions. Word has length 321 [2018-07-23 13:43:45,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:43:45,657 INFO L471 AbstractCegarLoop]: Abstraction has 324 states and 325 transitions. [2018-07-23 13:43:45,657 INFO L472 AbstractCegarLoop]: Interpolant automaton has 110 states. [2018-07-23 13:43:45,657 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 325 transitions. [2018-07-23 13:43:45,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2018-07-23 13:43:45,658 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:43:45,658 INFO L357 BasicCegarLoop]: trace histogram [107, 106, 106, 1, 1, 1, 1] [2018-07-23 13:43:45,658 INFO L414 AbstractCegarLoop]: === Iteration 213 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:43:45,658 INFO L82 PathProgramCache]: Analyzing trace with hash -269384405, now seen corresponding path program 211 times [2018-07-23 13:43:45,658 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:43:45,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:43:46,659 INFO L134 CoverageAnalysis]: Checked inductivity of 17013 backedges. 11342 proven. 5671 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:46,659 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:43:46,659 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [215] total 215 [2018-07-23 13:43:46,659 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:43:46,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:46,660 INFO L185 omatonBuilderFactory]: Interpolants [205495#(<= ULTIMATE.start_main_~i~5 0), 205494#false, 205493#true, 205499#(<= ULTIMATE.start_main_~i~5 4), 205498#(<= ULTIMATE.start_main_~i~5 3), 205497#(<= ULTIMATE.start_main_~i~5 2), 205496#(<= ULTIMATE.start_main_~i~5 1), 205503#(<= ULTIMATE.start_main_~i~5 8), 205502#(<= ULTIMATE.start_main_~i~5 7), 205501#(<= ULTIMATE.start_main_~i~5 6), 205500#(<= ULTIMATE.start_main_~i~5 5), 205507#(<= ULTIMATE.start_main_~i~5 12), 205506#(<= ULTIMATE.start_main_~i~5 11), 205505#(<= ULTIMATE.start_main_~i~5 10), 205504#(<= ULTIMATE.start_main_~i~5 9), 205511#(<= ULTIMATE.start_main_~i~5 16), 205510#(<= ULTIMATE.start_main_~i~5 15), 205509#(<= ULTIMATE.start_main_~i~5 14), 205508#(<= ULTIMATE.start_main_~i~5 13), 205515#(<= ULTIMATE.start_main_~i~5 20), 205514#(<= ULTIMATE.start_main_~i~5 19), 205513#(<= ULTIMATE.start_main_~i~5 18), 205512#(<= ULTIMATE.start_main_~i~5 17), 205519#(<= ULTIMATE.start_main_~i~5 24), 205518#(<= ULTIMATE.start_main_~i~5 23), 205517#(<= ULTIMATE.start_main_~i~5 22), 205516#(<= ULTIMATE.start_main_~i~5 21), 205523#(<= ULTIMATE.start_main_~i~5 28), 205522#(<= ULTIMATE.start_main_~i~5 27), 205521#(<= ULTIMATE.start_main_~i~5 26), 205520#(<= ULTIMATE.start_main_~i~5 25), 205527#(<= ULTIMATE.start_main_~i~5 32), 205526#(<= ULTIMATE.start_main_~i~5 31), 205525#(<= ULTIMATE.start_main_~i~5 30), 205524#(<= ULTIMATE.start_main_~i~5 29), 205531#(<= ULTIMATE.start_main_~i~5 36), 205530#(<= ULTIMATE.start_main_~i~5 35), 205529#(<= ULTIMATE.start_main_~i~5 34), 205528#(<= ULTIMATE.start_main_~i~5 33), 205535#(<= ULTIMATE.start_main_~i~5 40), 205534#(<= ULTIMATE.start_main_~i~5 39), 205533#(<= ULTIMATE.start_main_~i~5 38), 205532#(<= ULTIMATE.start_main_~i~5 37), 205539#(<= ULTIMATE.start_main_~i~5 44), 205538#(<= ULTIMATE.start_main_~i~5 43), 205537#(<= ULTIMATE.start_main_~i~5 42), 205536#(<= ULTIMATE.start_main_~i~5 41), 205543#(<= ULTIMATE.start_main_~i~5 48), 205542#(<= ULTIMATE.start_main_~i~5 47), 205541#(<= ULTIMATE.start_main_~i~5 46), 205540#(<= ULTIMATE.start_main_~i~5 45), 205547#(<= ULTIMATE.start_main_~i~5 52), 205546#(<= ULTIMATE.start_main_~i~5 51), 205545#(<= ULTIMATE.start_main_~i~5 50), 205544#(<= ULTIMATE.start_main_~i~5 49), 205551#(<= ULTIMATE.start_main_~i~5 56), 205550#(<= ULTIMATE.start_main_~i~5 55), 205549#(<= ULTIMATE.start_main_~i~5 54), 205548#(<= ULTIMATE.start_main_~i~5 53), 205555#(<= ULTIMATE.start_main_~i~5 60), 205554#(<= ULTIMATE.start_main_~i~5 59), 205553#(<= ULTIMATE.start_main_~i~5 58), 205552#(<= ULTIMATE.start_main_~i~5 57), 205559#(<= ULTIMATE.start_main_~i~5 64), 205558#(<= ULTIMATE.start_main_~i~5 63), 205557#(<= ULTIMATE.start_main_~i~5 62), 205556#(<= ULTIMATE.start_main_~i~5 61), 205563#(<= ULTIMATE.start_main_~i~5 68), 205562#(<= ULTIMATE.start_main_~i~5 67), 205561#(<= ULTIMATE.start_main_~i~5 66), 205560#(<= ULTIMATE.start_main_~i~5 65), 205567#(<= ULTIMATE.start_main_~i~5 72), 205566#(<= ULTIMATE.start_main_~i~5 71), 205565#(<= ULTIMATE.start_main_~i~5 70), 205564#(<= ULTIMATE.start_main_~i~5 69), 205571#(<= ULTIMATE.start_main_~i~5 76), 205570#(<= ULTIMATE.start_main_~i~5 75), 205569#(<= ULTIMATE.start_main_~i~5 74), 205568#(<= ULTIMATE.start_main_~i~5 73), 205575#(<= ULTIMATE.start_main_~i~5 80), 205574#(<= ULTIMATE.start_main_~i~5 79), 205573#(<= ULTIMATE.start_main_~i~5 78), 205572#(<= ULTIMATE.start_main_~i~5 77), 205579#(<= ULTIMATE.start_main_~i~5 84), 205578#(<= ULTIMATE.start_main_~i~5 83), 205577#(<= ULTIMATE.start_main_~i~5 82), 205576#(<= ULTIMATE.start_main_~i~5 81), 205583#(<= ULTIMATE.start_main_~i~5 88), 205582#(<= ULTIMATE.start_main_~i~5 87), 205581#(<= ULTIMATE.start_main_~i~5 86), 205580#(<= ULTIMATE.start_main_~i~5 85), 205587#(<= ULTIMATE.start_main_~i~5 92), 205586#(<= ULTIMATE.start_main_~i~5 91), 205585#(<= ULTIMATE.start_main_~i~5 90), 205584#(<= ULTIMATE.start_main_~i~5 89), 205591#(<= ULTIMATE.start_main_~i~5 96), 205590#(<= ULTIMATE.start_main_~i~5 95), 205589#(<= ULTIMATE.start_main_~i~5 94), 205588#(<= ULTIMATE.start_main_~i~5 93), 205595#(<= ULTIMATE.start_main_~i~5 100), 205594#(<= ULTIMATE.start_main_~i~5 99), 205593#(<= ULTIMATE.start_main_~i~5 98), 205592#(<= ULTIMATE.start_main_~i~5 97), 205599#(<= ULTIMATE.start_main_~i~5 104), 205598#(<= ULTIMATE.start_main_~i~5 103), 205597#(<= ULTIMATE.start_main_~i~5 102), 205596#(<= ULTIMATE.start_main_~i~5 101), 205603#(<= ULTIMATE.start_main_~j~5 105), 205602#(<= ULTIMATE.start_main_~j~5 106), 205601#(<= ULTIMATE.start_main_~i~5 106), 205600#(<= ULTIMATE.start_main_~i~5 105), 205607#(<= ULTIMATE.start_main_~j~5 101), 205606#(<= ULTIMATE.start_main_~j~5 102), 205605#(<= ULTIMATE.start_main_~j~5 103), 205604#(<= ULTIMATE.start_main_~j~5 104), 205611#(<= ULTIMATE.start_main_~j~5 97), 205610#(<= ULTIMATE.start_main_~j~5 98), 205609#(<= ULTIMATE.start_main_~j~5 99), 205608#(<= ULTIMATE.start_main_~j~5 100), 205615#(<= ULTIMATE.start_main_~j~5 93), 205614#(<= ULTIMATE.start_main_~j~5 94), 205613#(<= ULTIMATE.start_main_~j~5 95), 205612#(<= ULTIMATE.start_main_~j~5 96), 205619#(<= ULTIMATE.start_main_~j~5 89), 205618#(<= ULTIMATE.start_main_~j~5 90), 205617#(<= ULTIMATE.start_main_~j~5 91), 205616#(<= ULTIMATE.start_main_~j~5 92), 205623#(<= ULTIMATE.start_main_~j~5 85), 205622#(<= ULTIMATE.start_main_~j~5 86), 205621#(<= ULTIMATE.start_main_~j~5 87), 205620#(<= ULTIMATE.start_main_~j~5 88), 205627#(<= ULTIMATE.start_main_~j~5 81), 205626#(<= ULTIMATE.start_main_~j~5 82), 205625#(<= ULTIMATE.start_main_~j~5 83), 205624#(<= ULTIMATE.start_main_~j~5 84), 205631#(<= ULTIMATE.start_main_~j~5 77), 205630#(<= ULTIMATE.start_main_~j~5 78), 205629#(<= ULTIMATE.start_main_~j~5 79), 205628#(<= ULTIMATE.start_main_~j~5 80), 205635#(<= ULTIMATE.start_main_~j~5 73), 205634#(<= ULTIMATE.start_main_~j~5 74), 205633#(<= ULTIMATE.start_main_~j~5 75), 205632#(<= ULTIMATE.start_main_~j~5 76), 205639#(<= ULTIMATE.start_main_~j~5 69), 205638#(<= ULTIMATE.start_main_~j~5 70), 205637#(<= ULTIMATE.start_main_~j~5 71), 205636#(<= ULTIMATE.start_main_~j~5 72), 205643#(<= ULTIMATE.start_main_~j~5 65), 205642#(<= ULTIMATE.start_main_~j~5 66), 205641#(<= ULTIMATE.start_main_~j~5 67), 205640#(<= ULTIMATE.start_main_~j~5 68), 205647#(<= ULTIMATE.start_main_~j~5 61), 205646#(<= ULTIMATE.start_main_~j~5 62), 205645#(<= ULTIMATE.start_main_~j~5 63), 205644#(<= ULTIMATE.start_main_~j~5 64), 205651#(<= ULTIMATE.start_main_~j~5 57), 205650#(<= ULTIMATE.start_main_~j~5 58), 205649#(<= ULTIMATE.start_main_~j~5 59), 205648#(<= ULTIMATE.start_main_~j~5 60), 205655#(<= ULTIMATE.start_main_~j~5 53), 205654#(<= ULTIMATE.start_main_~j~5 54), 205653#(<= ULTIMATE.start_main_~j~5 55), 205652#(<= ULTIMATE.start_main_~j~5 56), 205659#(<= ULTIMATE.start_main_~j~5 49), 205658#(<= ULTIMATE.start_main_~j~5 50), 205657#(<= ULTIMATE.start_main_~j~5 51), 205656#(<= ULTIMATE.start_main_~j~5 52), 205663#(<= ULTIMATE.start_main_~j~5 45), 205662#(<= ULTIMATE.start_main_~j~5 46), 205661#(<= ULTIMATE.start_main_~j~5 47), 205660#(<= ULTIMATE.start_main_~j~5 48), 205667#(<= ULTIMATE.start_main_~j~5 41), 205666#(<= ULTIMATE.start_main_~j~5 42), 205665#(<= ULTIMATE.start_main_~j~5 43), 205664#(<= ULTIMATE.start_main_~j~5 44), 205671#(<= ULTIMATE.start_main_~j~5 37), 205670#(<= ULTIMATE.start_main_~j~5 38), 205669#(<= ULTIMATE.start_main_~j~5 39), 205668#(<= ULTIMATE.start_main_~j~5 40), 205675#(<= ULTIMATE.start_main_~j~5 33), 205674#(<= ULTIMATE.start_main_~j~5 34), 205673#(<= ULTIMATE.start_main_~j~5 35), 205672#(<= ULTIMATE.start_main_~j~5 36), 205679#(<= ULTIMATE.start_main_~j~5 29), 205678#(<= ULTIMATE.start_main_~j~5 30), 205677#(<= ULTIMATE.start_main_~j~5 31), 205676#(<= ULTIMATE.start_main_~j~5 32), 205683#(<= ULTIMATE.start_main_~j~5 25), 205682#(<= ULTIMATE.start_main_~j~5 26), 205681#(<= ULTIMATE.start_main_~j~5 27), 205680#(<= ULTIMATE.start_main_~j~5 28), 205687#(<= ULTIMATE.start_main_~j~5 21), 205686#(<= ULTIMATE.start_main_~j~5 22), 205685#(<= ULTIMATE.start_main_~j~5 23), 205684#(<= ULTIMATE.start_main_~j~5 24), 205691#(<= ULTIMATE.start_main_~j~5 17), 205690#(<= ULTIMATE.start_main_~j~5 18), 205689#(<= ULTIMATE.start_main_~j~5 19), 205688#(<= ULTIMATE.start_main_~j~5 20), 205695#(<= ULTIMATE.start_main_~j~5 13), 205694#(<= ULTIMATE.start_main_~j~5 14), 205693#(<= ULTIMATE.start_main_~j~5 15), 205692#(<= ULTIMATE.start_main_~j~5 16), 205699#(<= ULTIMATE.start_main_~j~5 9), 205698#(<= ULTIMATE.start_main_~j~5 10), 205697#(<= ULTIMATE.start_main_~j~5 11), 205696#(<= ULTIMATE.start_main_~j~5 12), 205703#(<= ULTIMATE.start_main_~j~5 5), 205702#(<= ULTIMATE.start_main_~j~5 6), 205701#(<= ULTIMATE.start_main_~j~5 7), 205700#(<= ULTIMATE.start_main_~j~5 8), 205707#(<= ULTIMATE.start_main_~j~5 1), 205706#(<= ULTIMATE.start_main_~j~5 2), 205705#(<= ULTIMATE.start_main_~j~5 3), 205704#(<= ULTIMATE.start_main_~j~5 4), 205708#(<= ULTIMATE.start_main_~j~5 0)] [2018-07-23 13:43:46,661 INFO L134 CoverageAnalysis]: Checked inductivity of 17013 backedges. 11342 proven. 5671 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:46,661 INFO L450 AbstractCegarLoop]: Interpolant automaton has 216 states [2018-07-23 13:43:46,662 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 216 interpolants. [2018-07-23 13:43:46,665 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11771, Invalid=34669, Unknown=0, NotChecked=0, Total=46440 [2018-07-23 13:43:46,665 INFO L87 Difference]: Start difference. First operand 324 states and 325 transitions. Second operand 216 states. [2018-07-23 13:43:48,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:43:48,720 INFO L93 Difference]: Finished difference Result 542 states and 544 transitions. [2018-07-23 13:43:48,720 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 216 states. [2018-07-23 13:43:48,720 INFO L78 Accepts]: Start accepts. Automaton has 216 states. Word has length 323 [2018-07-23 13:43:48,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:43:48,721 INFO L225 Difference]: With dead ends: 542 [2018-07-23 13:43:48,721 INFO L226 Difference]: Without dead ends: 325 [2018-07-23 13:43:48,722 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 321 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16907 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=23541, Invalid=80465, Unknown=0, NotChecked=0, Total=104006 [2018-07-23 13:43:48,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2018-07-23 13:43:48,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 325. [2018-07-23 13:43:48,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 325 states. [2018-07-23 13:43:48,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 326 transitions. [2018-07-23 13:43:48,764 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 326 transitions. Word has length 323 [2018-07-23 13:43:48,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:43:48,764 INFO L471 AbstractCegarLoop]: Abstraction has 325 states and 326 transitions. [2018-07-23 13:43:48,764 INFO L472 AbstractCegarLoop]: Interpolant automaton has 216 states. [2018-07-23 13:43:48,764 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 326 transitions. [2018-07-23 13:43:48,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2018-07-23 13:43:48,765 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:43:48,765 INFO L357 BasicCegarLoop]: trace histogram [107, 107, 106, 1, 1, 1, 1] [2018-07-23 13:43:48,765 INFO L414 AbstractCegarLoop]: === Iteration 214 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:43:48,765 INFO L82 PathProgramCache]: Analyzing trace with hash 2140250898, now seen corresponding path program 212 times [2018-07-23 13:43:48,765 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:43:49,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:43:49,405 INFO L134 CoverageAnalysis]: Checked inductivity of 17120 backedges. 5778 proven. 11342 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:49,405 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:43:49,405 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [110] total 110 [2018-07-23 13:43:49,405 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:43:49,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:49,406 INFO L185 omatonBuilderFactory]: Interpolants [207659#(<= 0 ULTIMATE.start_main_~k~5), 207658#false, 207657#true, 207663#(<= 4 ULTIMATE.start_main_~k~5), 207662#(<= 3 ULTIMATE.start_main_~k~5), 207661#(<= 2 ULTIMATE.start_main_~k~5), 207660#(<= 1 ULTIMATE.start_main_~k~5), 207667#(<= 8 ULTIMATE.start_main_~k~5), 207666#(<= 7 ULTIMATE.start_main_~k~5), 207665#(<= 6 ULTIMATE.start_main_~k~5), 207664#(<= 5 ULTIMATE.start_main_~k~5), 207671#(<= 12 ULTIMATE.start_main_~k~5), 207670#(<= 11 ULTIMATE.start_main_~k~5), 207669#(<= 10 ULTIMATE.start_main_~k~5), 207668#(<= 9 ULTIMATE.start_main_~k~5), 207675#(<= 16 ULTIMATE.start_main_~k~5), 207674#(<= 15 ULTIMATE.start_main_~k~5), 207673#(<= 14 ULTIMATE.start_main_~k~5), 207672#(<= 13 ULTIMATE.start_main_~k~5), 207679#(<= 20 ULTIMATE.start_main_~k~5), 207678#(<= 19 ULTIMATE.start_main_~k~5), 207677#(<= 18 ULTIMATE.start_main_~k~5), 207676#(<= 17 ULTIMATE.start_main_~k~5), 207683#(<= 24 ULTIMATE.start_main_~k~5), 207682#(<= 23 ULTIMATE.start_main_~k~5), 207681#(<= 22 ULTIMATE.start_main_~k~5), 207680#(<= 21 ULTIMATE.start_main_~k~5), 207687#(<= 28 ULTIMATE.start_main_~k~5), 207686#(<= 27 ULTIMATE.start_main_~k~5), 207685#(<= 26 ULTIMATE.start_main_~k~5), 207684#(<= 25 ULTIMATE.start_main_~k~5), 207691#(<= 32 ULTIMATE.start_main_~k~5), 207690#(<= 31 ULTIMATE.start_main_~k~5), 207689#(<= 30 ULTIMATE.start_main_~k~5), 207688#(<= 29 ULTIMATE.start_main_~k~5), 207695#(<= 36 ULTIMATE.start_main_~k~5), 207694#(<= 35 ULTIMATE.start_main_~k~5), 207693#(<= 34 ULTIMATE.start_main_~k~5), 207692#(<= 33 ULTIMATE.start_main_~k~5), 207699#(<= 40 ULTIMATE.start_main_~k~5), 207698#(<= 39 ULTIMATE.start_main_~k~5), 207697#(<= 38 ULTIMATE.start_main_~k~5), 207696#(<= 37 ULTIMATE.start_main_~k~5), 207703#(<= 44 ULTIMATE.start_main_~k~5), 207702#(<= 43 ULTIMATE.start_main_~k~5), 207701#(<= 42 ULTIMATE.start_main_~k~5), 207700#(<= 41 ULTIMATE.start_main_~k~5), 207707#(<= 48 ULTIMATE.start_main_~k~5), 207706#(<= 47 ULTIMATE.start_main_~k~5), 207705#(<= 46 ULTIMATE.start_main_~k~5), 207704#(<= 45 ULTIMATE.start_main_~k~5), 207711#(<= 52 ULTIMATE.start_main_~k~5), 207710#(<= 51 ULTIMATE.start_main_~k~5), 207709#(<= 50 ULTIMATE.start_main_~k~5), 207708#(<= 49 ULTIMATE.start_main_~k~5), 207715#(<= 56 ULTIMATE.start_main_~k~5), 207714#(<= 55 ULTIMATE.start_main_~k~5), 207713#(<= 54 ULTIMATE.start_main_~k~5), 207712#(<= 53 ULTIMATE.start_main_~k~5), 207719#(<= 60 ULTIMATE.start_main_~k~5), 207718#(<= 59 ULTIMATE.start_main_~k~5), 207717#(<= 58 ULTIMATE.start_main_~k~5), 207716#(<= 57 ULTIMATE.start_main_~k~5), 207723#(<= 64 ULTIMATE.start_main_~k~5), 207722#(<= 63 ULTIMATE.start_main_~k~5), 207721#(<= 62 ULTIMATE.start_main_~k~5), 207720#(<= 61 ULTIMATE.start_main_~k~5), 207727#(<= 68 ULTIMATE.start_main_~k~5), 207726#(<= 67 ULTIMATE.start_main_~k~5), 207725#(<= 66 ULTIMATE.start_main_~k~5), 207724#(<= 65 ULTIMATE.start_main_~k~5), 207731#(<= 72 ULTIMATE.start_main_~k~5), 207730#(<= 71 ULTIMATE.start_main_~k~5), 207729#(<= 70 ULTIMATE.start_main_~k~5), 207728#(<= 69 ULTIMATE.start_main_~k~5), 207735#(<= 76 ULTIMATE.start_main_~k~5), 207734#(<= 75 ULTIMATE.start_main_~k~5), 207733#(<= 74 ULTIMATE.start_main_~k~5), 207732#(<= 73 ULTIMATE.start_main_~k~5), 207739#(<= 80 ULTIMATE.start_main_~k~5), 207738#(<= 79 ULTIMATE.start_main_~k~5), 207737#(<= 78 ULTIMATE.start_main_~k~5), 207736#(<= 77 ULTIMATE.start_main_~k~5), 207743#(<= 84 ULTIMATE.start_main_~k~5), 207742#(<= 83 ULTIMATE.start_main_~k~5), 207741#(<= 82 ULTIMATE.start_main_~k~5), 207740#(<= 81 ULTIMATE.start_main_~k~5), 207747#(<= 88 ULTIMATE.start_main_~k~5), 207746#(<= 87 ULTIMATE.start_main_~k~5), 207745#(<= 86 ULTIMATE.start_main_~k~5), 207744#(<= 85 ULTIMATE.start_main_~k~5), 207751#(<= 92 ULTIMATE.start_main_~k~5), 207750#(<= 91 ULTIMATE.start_main_~k~5), 207749#(<= 90 ULTIMATE.start_main_~k~5), 207748#(<= 89 ULTIMATE.start_main_~k~5), 207755#(<= 96 ULTIMATE.start_main_~k~5), 207754#(<= 95 ULTIMATE.start_main_~k~5), 207753#(<= 94 ULTIMATE.start_main_~k~5), 207752#(<= 93 ULTIMATE.start_main_~k~5), 207759#(<= 100 ULTIMATE.start_main_~k~5), 207758#(<= 99 ULTIMATE.start_main_~k~5), 207757#(<= 98 ULTIMATE.start_main_~k~5), 207756#(<= 97 ULTIMATE.start_main_~k~5), 207763#(<= 104 ULTIMATE.start_main_~k~5), 207762#(<= 103 ULTIMATE.start_main_~k~5), 207761#(<= 102 ULTIMATE.start_main_~k~5), 207760#(<= 101 ULTIMATE.start_main_~k~5), 207767#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 207766#(<= 107 ULTIMATE.start_main_~k~5), 207765#(<= 106 ULTIMATE.start_main_~k~5), 207764#(<= 105 ULTIMATE.start_main_~k~5)] [2018-07-23 13:43:49,406 INFO L134 CoverageAnalysis]: Checked inductivity of 17120 backedges. 5778 proven. 11342 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:49,407 INFO L450 AbstractCegarLoop]: Interpolant automaton has 111 states [2018-07-23 13:43:49,407 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 111 interpolants. [2018-07-23 13:43:49,407 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5997, Invalid=6213, Unknown=0, NotChecked=0, Total=12210 [2018-07-23 13:43:49,408 INFO L87 Difference]: Start difference. First operand 325 states and 326 transitions. Second operand 111 states. [2018-07-23 13:43:49,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:43:49,889 INFO L93 Difference]: Finished difference Result 333 states and 334 transitions. [2018-07-23 13:43:49,889 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 218 states. [2018-07-23 13:43:49,889 INFO L78 Accepts]: Start accepts. Automaton has 111 states. Word has length 324 [2018-07-23 13:43:49,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:43:49,889 INFO L225 Difference]: With dead ends: 333 [2018-07-23 13:43:49,890 INFO L226 Difference]: Without dead ends: 331 [2018-07-23 13:43:49,892 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 217 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11556 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17985, Invalid=29757, Unknown=0, NotChecked=0, Total=47742 [2018-07-23 13:43:49,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2018-07-23 13:43:49,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 327. [2018-07-23 13:43:49,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 327 states. [2018-07-23 13:43:49,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 328 transitions. [2018-07-23 13:43:49,934 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 328 transitions. Word has length 324 [2018-07-23 13:43:49,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:43:49,934 INFO L471 AbstractCegarLoop]: Abstraction has 327 states and 328 transitions. [2018-07-23 13:43:49,934 INFO L472 AbstractCegarLoop]: Interpolant automaton has 111 states. [2018-07-23 13:43:49,934 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 328 transitions. [2018-07-23 13:43:49,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2018-07-23 13:43:49,935 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:43:49,935 INFO L357 BasicCegarLoop]: trace histogram [108, 107, 107, 1, 1, 1, 1] [2018-07-23 13:43:49,935 INFO L414 AbstractCegarLoop]: === Iteration 215 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:43:49,935 INFO L82 PathProgramCache]: Analyzing trace with hash -508155782, now seen corresponding path program 213 times [2018-07-23 13:43:49,936 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:43:50,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:43:51,018 INFO L134 CoverageAnalysis]: Checked inductivity of 17334 backedges. 11556 proven. 5778 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:51,018 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:43:51,018 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [217] total 217 [2018-07-23 13:43:51,019 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:43:51,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:51,019 INFO L185 omatonBuilderFactory]: Interpolants [209411#(<= ULTIMATE.start_main_~i~5 105), 209410#(<= ULTIMATE.start_main_~i~5 104), 209409#(<= ULTIMATE.start_main_~i~5 103), 209408#(<= ULTIMATE.start_main_~i~5 102), 209415#(<= ULTIMATE.start_main_~j~5 106), 209414#(<= ULTIMATE.start_main_~j~5 107), 209413#(<= ULTIMATE.start_main_~i~5 107), 209412#(<= ULTIMATE.start_main_~i~5 106), 209419#(<= ULTIMATE.start_main_~j~5 102), 209418#(<= ULTIMATE.start_main_~j~5 103), 209417#(<= ULTIMATE.start_main_~j~5 104), 209416#(<= ULTIMATE.start_main_~j~5 105), 209423#(<= ULTIMATE.start_main_~j~5 98), 209422#(<= ULTIMATE.start_main_~j~5 99), 209421#(<= ULTIMATE.start_main_~j~5 100), 209420#(<= ULTIMATE.start_main_~j~5 101), 209427#(<= ULTIMATE.start_main_~j~5 94), 209426#(<= ULTIMATE.start_main_~j~5 95), 209425#(<= ULTIMATE.start_main_~j~5 96), 209424#(<= ULTIMATE.start_main_~j~5 97), 209431#(<= ULTIMATE.start_main_~j~5 90), 209430#(<= ULTIMATE.start_main_~j~5 91), 209429#(<= ULTIMATE.start_main_~j~5 92), 209428#(<= ULTIMATE.start_main_~j~5 93), 209435#(<= ULTIMATE.start_main_~j~5 86), 209434#(<= ULTIMATE.start_main_~j~5 87), 209433#(<= ULTIMATE.start_main_~j~5 88), 209432#(<= ULTIMATE.start_main_~j~5 89), 209439#(<= ULTIMATE.start_main_~j~5 82), 209438#(<= ULTIMATE.start_main_~j~5 83), 209437#(<= ULTIMATE.start_main_~j~5 84), 209436#(<= ULTIMATE.start_main_~j~5 85), 209443#(<= ULTIMATE.start_main_~j~5 78), 209442#(<= ULTIMATE.start_main_~j~5 79), 209441#(<= ULTIMATE.start_main_~j~5 80), 209440#(<= ULTIMATE.start_main_~j~5 81), 209447#(<= ULTIMATE.start_main_~j~5 74), 209446#(<= ULTIMATE.start_main_~j~5 75), 209445#(<= ULTIMATE.start_main_~j~5 76), 209444#(<= ULTIMATE.start_main_~j~5 77), 209451#(<= ULTIMATE.start_main_~j~5 70), 209450#(<= ULTIMATE.start_main_~j~5 71), 209449#(<= ULTIMATE.start_main_~j~5 72), 209448#(<= ULTIMATE.start_main_~j~5 73), 209455#(<= ULTIMATE.start_main_~j~5 66), 209454#(<= ULTIMATE.start_main_~j~5 67), 209453#(<= ULTIMATE.start_main_~j~5 68), 209452#(<= ULTIMATE.start_main_~j~5 69), 209459#(<= ULTIMATE.start_main_~j~5 62), 209458#(<= ULTIMATE.start_main_~j~5 63), 209457#(<= ULTIMATE.start_main_~j~5 64), 209456#(<= ULTIMATE.start_main_~j~5 65), 209463#(<= ULTIMATE.start_main_~j~5 58), 209462#(<= ULTIMATE.start_main_~j~5 59), 209461#(<= ULTIMATE.start_main_~j~5 60), 209460#(<= ULTIMATE.start_main_~j~5 61), 209467#(<= ULTIMATE.start_main_~j~5 54), 209466#(<= ULTIMATE.start_main_~j~5 55), 209465#(<= ULTIMATE.start_main_~j~5 56), 209464#(<= ULTIMATE.start_main_~j~5 57), 209471#(<= ULTIMATE.start_main_~j~5 50), 209470#(<= ULTIMATE.start_main_~j~5 51), 209469#(<= ULTIMATE.start_main_~j~5 52), 209468#(<= ULTIMATE.start_main_~j~5 53), 209475#(<= ULTIMATE.start_main_~j~5 46), 209474#(<= ULTIMATE.start_main_~j~5 47), 209473#(<= ULTIMATE.start_main_~j~5 48), 209472#(<= ULTIMATE.start_main_~j~5 49), 209479#(<= ULTIMATE.start_main_~j~5 42), 209478#(<= ULTIMATE.start_main_~j~5 43), 209477#(<= ULTIMATE.start_main_~j~5 44), 209476#(<= ULTIMATE.start_main_~j~5 45), 209483#(<= ULTIMATE.start_main_~j~5 38), 209482#(<= ULTIMATE.start_main_~j~5 39), 209481#(<= ULTIMATE.start_main_~j~5 40), 209480#(<= ULTIMATE.start_main_~j~5 41), 209487#(<= ULTIMATE.start_main_~j~5 34), 209486#(<= ULTIMATE.start_main_~j~5 35), 209485#(<= ULTIMATE.start_main_~j~5 36), 209484#(<= ULTIMATE.start_main_~j~5 37), 209491#(<= ULTIMATE.start_main_~j~5 30), 209490#(<= ULTIMATE.start_main_~j~5 31), 209489#(<= ULTIMATE.start_main_~j~5 32), 209488#(<= ULTIMATE.start_main_~j~5 33), 209495#(<= ULTIMATE.start_main_~j~5 26), 209494#(<= ULTIMATE.start_main_~j~5 27), 209493#(<= ULTIMATE.start_main_~j~5 28), 209492#(<= ULTIMATE.start_main_~j~5 29), 209499#(<= ULTIMATE.start_main_~j~5 22), 209498#(<= ULTIMATE.start_main_~j~5 23), 209497#(<= ULTIMATE.start_main_~j~5 24), 209496#(<= ULTIMATE.start_main_~j~5 25), 209503#(<= ULTIMATE.start_main_~j~5 18), 209502#(<= ULTIMATE.start_main_~j~5 19), 209501#(<= ULTIMATE.start_main_~j~5 20), 209500#(<= ULTIMATE.start_main_~j~5 21), 209507#(<= ULTIMATE.start_main_~j~5 14), 209506#(<= ULTIMATE.start_main_~j~5 15), 209505#(<= ULTIMATE.start_main_~j~5 16), 209504#(<= ULTIMATE.start_main_~j~5 17), 209511#(<= ULTIMATE.start_main_~j~5 10), 209510#(<= ULTIMATE.start_main_~j~5 11), 209509#(<= ULTIMATE.start_main_~j~5 12), 209508#(<= ULTIMATE.start_main_~j~5 13), 209515#(<= ULTIMATE.start_main_~j~5 6), 209514#(<= ULTIMATE.start_main_~j~5 7), 209513#(<= ULTIMATE.start_main_~j~5 8), 209512#(<= ULTIMATE.start_main_~j~5 9), 209519#(<= ULTIMATE.start_main_~j~5 2), 209518#(<= ULTIMATE.start_main_~j~5 3), 209517#(<= ULTIMATE.start_main_~j~5 4), 209516#(<= ULTIMATE.start_main_~j~5 5), 209521#(<= ULTIMATE.start_main_~j~5 0), 209520#(<= ULTIMATE.start_main_~j~5 1), 209307#(<= ULTIMATE.start_main_~i~5 1), 209306#(<= ULTIMATE.start_main_~i~5 0), 209305#false, 209304#true, 209311#(<= ULTIMATE.start_main_~i~5 5), 209310#(<= ULTIMATE.start_main_~i~5 4), 209309#(<= ULTIMATE.start_main_~i~5 3), 209308#(<= ULTIMATE.start_main_~i~5 2), 209315#(<= ULTIMATE.start_main_~i~5 9), 209314#(<= ULTIMATE.start_main_~i~5 8), 209313#(<= ULTIMATE.start_main_~i~5 7), 209312#(<= ULTIMATE.start_main_~i~5 6), 209319#(<= ULTIMATE.start_main_~i~5 13), 209318#(<= ULTIMATE.start_main_~i~5 12), 209317#(<= ULTIMATE.start_main_~i~5 11), 209316#(<= ULTIMATE.start_main_~i~5 10), 209323#(<= ULTIMATE.start_main_~i~5 17), 209322#(<= ULTIMATE.start_main_~i~5 16), 209321#(<= ULTIMATE.start_main_~i~5 15), 209320#(<= ULTIMATE.start_main_~i~5 14), 209327#(<= ULTIMATE.start_main_~i~5 21), 209326#(<= ULTIMATE.start_main_~i~5 20), 209325#(<= ULTIMATE.start_main_~i~5 19), 209324#(<= ULTIMATE.start_main_~i~5 18), 209331#(<= ULTIMATE.start_main_~i~5 25), 209330#(<= ULTIMATE.start_main_~i~5 24), 209329#(<= ULTIMATE.start_main_~i~5 23), 209328#(<= ULTIMATE.start_main_~i~5 22), 209335#(<= ULTIMATE.start_main_~i~5 29), 209334#(<= ULTIMATE.start_main_~i~5 28), 209333#(<= ULTIMATE.start_main_~i~5 27), 209332#(<= ULTIMATE.start_main_~i~5 26), 209339#(<= ULTIMATE.start_main_~i~5 33), 209338#(<= ULTIMATE.start_main_~i~5 32), 209337#(<= ULTIMATE.start_main_~i~5 31), 209336#(<= ULTIMATE.start_main_~i~5 30), 209343#(<= ULTIMATE.start_main_~i~5 37), 209342#(<= ULTIMATE.start_main_~i~5 36), 209341#(<= ULTIMATE.start_main_~i~5 35), 209340#(<= ULTIMATE.start_main_~i~5 34), 209347#(<= ULTIMATE.start_main_~i~5 41), 209346#(<= ULTIMATE.start_main_~i~5 40), 209345#(<= ULTIMATE.start_main_~i~5 39), 209344#(<= ULTIMATE.start_main_~i~5 38), 209351#(<= ULTIMATE.start_main_~i~5 45), 209350#(<= ULTIMATE.start_main_~i~5 44), 209349#(<= ULTIMATE.start_main_~i~5 43), 209348#(<= ULTIMATE.start_main_~i~5 42), 209355#(<= ULTIMATE.start_main_~i~5 49), 209354#(<= ULTIMATE.start_main_~i~5 48), 209353#(<= ULTIMATE.start_main_~i~5 47), 209352#(<= ULTIMATE.start_main_~i~5 46), 209359#(<= ULTIMATE.start_main_~i~5 53), 209358#(<= ULTIMATE.start_main_~i~5 52), 209357#(<= ULTIMATE.start_main_~i~5 51), 209356#(<= ULTIMATE.start_main_~i~5 50), 209363#(<= ULTIMATE.start_main_~i~5 57), 209362#(<= ULTIMATE.start_main_~i~5 56), 209361#(<= ULTIMATE.start_main_~i~5 55), 209360#(<= ULTIMATE.start_main_~i~5 54), 209367#(<= ULTIMATE.start_main_~i~5 61), 209366#(<= ULTIMATE.start_main_~i~5 60), 209365#(<= ULTIMATE.start_main_~i~5 59), 209364#(<= ULTIMATE.start_main_~i~5 58), 209371#(<= ULTIMATE.start_main_~i~5 65), 209370#(<= ULTIMATE.start_main_~i~5 64), 209369#(<= ULTIMATE.start_main_~i~5 63), 209368#(<= ULTIMATE.start_main_~i~5 62), 209375#(<= ULTIMATE.start_main_~i~5 69), 209374#(<= ULTIMATE.start_main_~i~5 68), 209373#(<= ULTIMATE.start_main_~i~5 67), 209372#(<= ULTIMATE.start_main_~i~5 66), 209379#(<= ULTIMATE.start_main_~i~5 73), 209378#(<= ULTIMATE.start_main_~i~5 72), 209377#(<= ULTIMATE.start_main_~i~5 71), 209376#(<= ULTIMATE.start_main_~i~5 70), 209383#(<= ULTIMATE.start_main_~i~5 77), 209382#(<= ULTIMATE.start_main_~i~5 76), 209381#(<= ULTIMATE.start_main_~i~5 75), 209380#(<= ULTIMATE.start_main_~i~5 74), 209387#(<= ULTIMATE.start_main_~i~5 81), 209386#(<= ULTIMATE.start_main_~i~5 80), 209385#(<= ULTIMATE.start_main_~i~5 79), 209384#(<= ULTIMATE.start_main_~i~5 78), 209391#(<= ULTIMATE.start_main_~i~5 85), 209390#(<= ULTIMATE.start_main_~i~5 84), 209389#(<= ULTIMATE.start_main_~i~5 83), 209388#(<= ULTIMATE.start_main_~i~5 82), 209395#(<= ULTIMATE.start_main_~i~5 89), 209394#(<= ULTIMATE.start_main_~i~5 88), 209393#(<= ULTIMATE.start_main_~i~5 87), 209392#(<= ULTIMATE.start_main_~i~5 86), 209399#(<= ULTIMATE.start_main_~i~5 93), 209398#(<= ULTIMATE.start_main_~i~5 92), 209397#(<= ULTIMATE.start_main_~i~5 91), 209396#(<= ULTIMATE.start_main_~i~5 90), 209403#(<= ULTIMATE.start_main_~i~5 97), 209402#(<= ULTIMATE.start_main_~i~5 96), 209401#(<= ULTIMATE.start_main_~i~5 95), 209400#(<= ULTIMATE.start_main_~i~5 94), 209407#(<= ULTIMATE.start_main_~i~5 101), 209406#(<= ULTIMATE.start_main_~i~5 100), 209405#(<= ULTIMATE.start_main_~i~5 99), 209404#(<= ULTIMATE.start_main_~i~5 98)] [2018-07-23 13:43:51,020 INFO L134 CoverageAnalysis]: Checked inductivity of 17334 backedges. 11556 proven. 5778 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:51,020 INFO L450 AbstractCegarLoop]: Interpolant automaton has 218 states [2018-07-23 13:43:51,022 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 218 interpolants. [2018-07-23 13:43:51,025 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11989, Invalid=35317, Unknown=0, NotChecked=0, Total=47306 [2018-07-23 13:43:51,025 INFO L87 Difference]: Start difference. First operand 327 states and 328 transitions. Second operand 218 states. [2018-07-23 13:43:52,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:43:52,254 INFO L93 Difference]: Finished difference Result 547 states and 549 transitions. [2018-07-23 13:43:52,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 218 states. [2018-07-23 13:43:52,254 INFO L78 Accepts]: Start accepts. Automaton has 218 states. Word has length 326 [2018-07-23 13:43:52,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:43:52,255 INFO L225 Difference]: With dead ends: 547 [2018-07-23 13:43:52,255 INFO L226 Difference]: Without dead ends: 328 [2018-07-23 13:43:52,257 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 324 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17227 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=23977, Invalid=81973, Unknown=0, NotChecked=0, Total=105950 [2018-07-23 13:43:52,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2018-07-23 13:43:52,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 328. [2018-07-23 13:43:52,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 328 states. [2018-07-23 13:43:52,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 329 transitions. [2018-07-23 13:43:52,299 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 329 transitions. Word has length 326 [2018-07-23 13:43:52,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:43:52,299 INFO L471 AbstractCegarLoop]: Abstraction has 328 states and 329 transitions. [2018-07-23 13:43:52,299 INFO L472 AbstractCegarLoop]: Interpolant automaton has 218 states. [2018-07-23 13:43:52,299 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 329 transitions. [2018-07-23 13:43:52,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2018-07-23 13:43:52,300 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:43:52,300 INFO L357 BasicCegarLoop]: trace histogram [108, 108, 107, 1, 1, 1, 1] [2018-07-23 13:43:52,300 INFO L414 AbstractCegarLoop]: === Iteration 216 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:43:52,300 INFO L82 PathProgramCache]: Analyzing trace with hash -1146229453, now seen corresponding path program 214 times [2018-07-23 13:43:52,300 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:43:52,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:43:52,963 INFO L134 CoverageAnalysis]: Checked inductivity of 17442 backedges. 5886 proven. 11556 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:52,963 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:43:52,964 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [111] total 111 [2018-07-23 13:43:52,964 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:43:52,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:52,964 INFO L185 omatonBuilderFactory]: Interpolants [211491#(<= 1 ULTIMATE.start_main_~k~5), 211490#(<= 0 ULTIMATE.start_main_~k~5), 211489#false, 211488#true, 211495#(<= 5 ULTIMATE.start_main_~k~5), 211494#(<= 4 ULTIMATE.start_main_~k~5), 211493#(<= 3 ULTIMATE.start_main_~k~5), 211492#(<= 2 ULTIMATE.start_main_~k~5), 211499#(<= 9 ULTIMATE.start_main_~k~5), 211498#(<= 8 ULTIMATE.start_main_~k~5), 211497#(<= 7 ULTIMATE.start_main_~k~5), 211496#(<= 6 ULTIMATE.start_main_~k~5), 211503#(<= 13 ULTIMATE.start_main_~k~5), 211502#(<= 12 ULTIMATE.start_main_~k~5), 211501#(<= 11 ULTIMATE.start_main_~k~5), 211500#(<= 10 ULTIMATE.start_main_~k~5), 211507#(<= 17 ULTIMATE.start_main_~k~5), 211506#(<= 16 ULTIMATE.start_main_~k~5), 211505#(<= 15 ULTIMATE.start_main_~k~5), 211504#(<= 14 ULTIMATE.start_main_~k~5), 211511#(<= 21 ULTIMATE.start_main_~k~5), 211510#(<= 20 ULTIMATE.start_main_~k~5), 211509#(<= 19 ULTIMATE.start_main_~k~5), 211508#(<= 18 ULTIMATE.start_main_~k~5), 211515#(<= 25 ULTIMATE.start_main_~k~5), 211514#(<= 24 ULTIMATE.start_main_~k~5), 211513#(<= 23 ULTIMATE.start_main_~k~5), 211512#(<= 22 ULTIMATE.start_main_~k~5), 211519#(<= 29 ULTIMATE.start_main_~k~5), 211518#(<= 28 ULTIMATE.start_main_~k~5), 211517#(<= 27 ULTIMATE.start_main_~k~5), 211516#(<= 26 ULTIMATE.start_main_~k~5), 211523#(<= 33 ULTIMATE.start_main_~k~5), 211522#(<= 32 ULTIMATE.start_main_~k~5), 211521#(<= 31 ULTIMATE.start_main_~k~5), 211520#(<= 30 ULTIMATE.start_main_~k~5), 211527#(<= 37 ULTIMATE.start_main_~k~5), 211526#(<= 36 ULTIMATE.start_main_~k~5), 211525#(<= 35 ULTIMATE.start_main_~k~5), 211524#(<= 34 ULTIMATE.start_main_~k~5), 211531#(<= 41 ULTIMATE.start_main_~k~5), 211530#(<= 40 ULTIMATE.start_main_~k~5), 211529#(<= 39 ULTIMATE.start_main_~k~5), 211528#(<= 38 ULTIMATE.start_main_~k~5), 211535#(<= 45 ULTIMATE.start_main_~k~5), 211534#(<= 44 ULTIMATE.start_main_~k~5), 211533#(<= 43 ULTIMATE.start_main_~k~5), 211532#(<= 42 ULTIMATE.start_main_~k~5), 211539#(<= 49 ULTIMATE.start_main_~k~5), 211538#(<= 48 ULTIMATE.start_main_~k~5), 211537#(<= 47 ULTIMATE.start_main_~k~5), 211536#(<= 46 ULTIMATE.start_main_~k~5), 211543#(<= 53 ULTIMATE.start_main_~k~5), 211542#(<= 52 ULTIMATE.start_main_~k~5), 211541#(<= 51 ULTIMATE.start_main_~k~5), 211540#(<= 50 ULTIMATE.start_main_~k~5), 211547#(<= 57 ULTIMATE.start_main_~k~5), 211546#(<= 56 ULTIMATE.start_main_~k~5), 211545#(<= 55 ULTIMATE.start_main_~k~5), 211544#(<= 54 ULTIMATE.start_main_~k~5), 211551#(<= 61 ULTIMATE.start_main_~k~5), 211550#(<= 60 ULTIMATE.start_main_~k~5), 211549#(<= 59 ULTIMATE.start_main_~k~5), 211548#(<= 58 ULTIMATE.start_main_~k~5), 211555#(<= 65 ULTIMATE.start_main_~k~5), 211554#(<= 64 ULTIMATE.start_main_~k~5), 211553#(<= 63 ULTIMATE.start_main_~k~5), 211552#(<= 62 ULTIMATE.start_main_~k~5), 211559#(<= 69 ULTIMATE.start_main_~k~5), 211558#(<= 68 ULTIMATE.start_main_~k~5), 211557#(<= 67 ULTIMATE.start_main_~k~5), 211556#(<= 66 ULTIMATE.start_main_~k~5), 211563#(<= 73 ULTIMATE.start_main_~k~5), 211562#(<= 72 ULTIMATE.start_main_~k~5), 211561#(<= 71 ULTIMATE.start_main_~k~5), 211560#(<= 70 ULTIMATE.start_main_~k~5), 211567#(<= 77 ULTIMATE.start_main_~k~5), 211566#(<= 76 ULTIMATE.start_main_~k~5), 211565#(<= 75 ULTIMATE.start_main_~k~5), 211564#(<= 74 ULTIMATE.start_main_~k~5), 211571#(<= 81 ULTIMATE.start_main_~k~5), 211570#(<= 80 ULTIMATE.start_main_~k~5), 211569#(<= 79 ULTIMATE.start_main_~k~5), 211568#(<= 78 ULTIMATE.start_main_~k~5), 211575#(<= 85 ULTIMATE.start_main_~k~5), 211574#(<= 84 ULTIMATE.start_main_~k~5), 211573#(<= 83 ULTIMATE.start_main_~k~5), 211572#(<= 82 ULTIMATE.start_main_~k~5), 211579#(<= 89 ULTIMATE.start_main_~k~5), 211578#(<= 88 ULTIMATE.start_main_~k~5), 211577#(<= 87 ULTIMATE.start_main_~k~5), 211576#(<= 86 ULTIMATE.start_main_~k~5), 211583#(<= 93 ULTIMATE.start_main_~k~5), 211582#(<= 92 ULTIMATE.start_main_~k~5), 211581#(<= 91 ULTIMATE.start_main_~k~5), 211580#(<= 90 ULTIMATE.start_main_~k~5), 211587#(<= 97 ULTIMATE.start_main_~k~5), 211586#(<= 96 ULTIMATE.start_main_~k~5), 211585#(<= 95 ULTIMATE.start_main_~k~5), 211584#(<= 94 ULTIMATE.start_main_~k~5), 211591#(<= 101 ULTIMATE.start_main_~k~5), 211590#(<= 100 ULTIMATE.start_main_~k~5), 211589#(<= 99 ULTIMATE.start_main_~k~5), 211588#(<= 98 ULTIMATE.start_main_~k~5), 211595#(<= 105 ULTIMATE.start_main_~k~5), 211594#(<= 104 ULTIMATE.start_main_~k~5), 211593#(<= 103 ULTIMATE.start_main_~k~5), 211592#(<= 102 ULTIMATE.start_main_~k~5), 211599#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 211598#(<= 108 ULTIMATE.start_main_~k~5), 211597#(<= 107 ULTIMATE.start_main_~k~5), 211596#(<= 106 ULTIMATE.start_main_~k~5)] [2018-07-23 13:43:52,965 INFO L134 CoverageAnalysis]: Checked inductivity of 17442 backedges. 5886 proven. 11556 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:52,965 INFO L450 AbstractCegarLoop]: Interpolant automaton has 112 states [2018-07-23 13:43:52,966 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 112 interpolants. [2018-07-23 13:43:52,966 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6107, Invalid=6325, Unknown=0, NotChecked=0, Total=12432 [2018-07-23 13:43:52,966 INFO L87 Difference]: Start difference. First operand 328 states and 329 transitions. Second operand 112 states. [2018-07-23 13:43:53,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:43:53,460 INFO L93 Difference]: Finished difference Result 336 states and 337 transitions. [2018-07-23 13:43:53,460 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 220 states. [2018-07-23 13:43:53,460 INFO L78 Accepts]: Start accepts. Automaton has 112 states. Word has length 327 [2018-07-23 13:43:53,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:43:53,461 INFO L225 Difference]: With dead ends: 336 [2018-07-23 13:43:53,461 INFO L226 Difference]: Without dead ends: 334 [2018-07-23 13:43:53,464 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 219 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11772 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18315, Invalid=30305, Unknown=0, NotChecked=0, Total=48620 [2018-07-23 13:43:53,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2018-07-23 13:43:53,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 330. [2018-07-23 13:43:53,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2018-07-23 13:43:53,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 331 transitions. [2018-07-23 13:43:53,508 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 331 transitions. Word has length 327 [2018-07-23 13:43:53,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:43:53,508 INFO L471 AbstractCegarLoop]: Abstraction has 330 states and 331 transitions. [2018-07-23 13:43:53,508 INFO L472 AbstractCegarLoop]: Interpolant automaton has 112 states. [2018-07-23 13:43:53,508 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 331 transitions. [2018-07-23 13:43:53,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2018-07-23 13:43:53,509 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:43:53,509 INFO L357 BasicCegarLoop]: trace histogram [109, 108, 108, 1, 1, 1, 1] [2018-07-23 13:43:53,509 INFO L414 AbstractCegarLoop]: === Iteration 217 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:43:53,509 INFO L82 PathProgramCache]: Analyzing trace with hash -2014810533, now seen corresponding path program 215 times [2018-07-23 13:43:53,509 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:43:53,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:43:54,589 INFO L134 CoverageAnalysis]: Checked inductivity of 17658 backedges. 11772 proven. 5886 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:54,589 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:43:54,589 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [219] total 219 [2018-07-23 13:43:54,590 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:43:54,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:54,590 INFO L185 omatonBuilderFactory]: Interpolants [213151#false, 213150#true, 213155#(<= ULTIMATE.start_main_~i~5 3), 213154#(<= ULTIMATE.start_main_~i~5 2), 213153#(<= ULTIMATE.start_main_~i~5 1), 213152#(<= ULTIMATE.start_main_~i~5 0), 213159#(<= ULTIMATE.start_main_~i~5 7), 213158#(<= ULTIMATE.start_main_~i~5 6), 213157#(<= ULTIMATE.start_main_~i~5 5), 213156#(<= ULTIMATE.start_main_~i~5 4), 213163#(<= ULTIMATE.start_main_~i~5 11), 213162#(<= ULTIMATE.start_main_~i~5 10), 213161#(<= ULTIMATE.start_main_~i~5 9), 213160#(<= ULTIMATE.start_main_~i~5 8), 213167#(<= ULTIMATE.start_main_~i~5 15), 213166#(<= ULTIMATE.start_main_~i~5 14), 213165#(<= ULTIMATE.start_main_~i~5 13), 213164#(<= ULTIMATE.start_main_~i~5 12), 213171#(<= ULTIMATE.start_main_~i~5 19), 213170#(<= ULTIMATE.start_main_~i~5 18), 213169#(<= ULTIMATE.start_main_~i~5 17), 213168#(<= ULTIMATE.start_main_~i~5 16), 213175#(<= ULTIMATE.start_main_~i~5 23), 213174#(<= ULTIMATE.start_main_~i~5 22), 213173#(<= ULTIMATE.start_main_~i~5 21), 213172#(<= ULTIMATE.start_main_~i~5 20), 213179#(<= ULTIMATE.start_main_~i~5 27), 213178#(<= ULTIMATE.start_main_~i~5 26), 213177#(<= ULTIMATE.start_main_~i~5 25), 213176#(<= ULTIMATE.start_main_~i~5 24), 213183#(<= ULTIMATE.start_main_~i~5 31), 213182#(<= ULTIMATE.start_main_~i~5 30), 213181#(<= ULTIMATE.start_main_~i~5 29), 213180#(<= ULTIMATE.start_main_~i~5 28), 213187#(<= ULTIMATE.start_main_~i~5 35), 213186#(<= ULTIMATE.start_main_~i~5 34), 213185#(<= ULTIMATE.start_main_~i~5 33), 213184#(<= ULTIMATE.start_main_~i~5 32), 213191#(<= ULTIMATE.start_main_~i~5 39), 213190#(<= ULTIMATE.start_main_~i~5 38), 213189#(<= ULTIMATE.start_main_~i~5 37), 213188#(<= ULTIMATE.start_main_~i~5 36), 213195#(<= ULTIMATE.start_main_~i~5 43), 213194#(<= ULTIMATE.start_main_~i~5 42), 213193#(<= ULTIMATE.start_main_~i~5 41), 213192#(<= ULTIMATE.start_main_~i~5 40), 213199#(<= ULTIMATE.start_main_~i~5 47), 213198#(<= ULTIMATE.start_main_~i~5 46), 213197#(<= ULTIMATE.start_main_~i~5 45), 213196#(<= ULTIMATE.start_main_~i~5 44), 213203#(<= ULTIMATE.start_main_~i~5 51), 213202#(<= ULTIMATE.start_main_~i~5 50), 213201#(<= ULTIMATE.start_main_~i~5 49), 213200#(<= ULTIMATE.start_main_~i~5 48), 213207#(<= ULTIMATE.start_main_~i~5 55), 213206#(<= ULTIMATE.start_main_~i~5 54), 213205#(<= ULTIMATE.start_main_~i~5 53), 213204#(<= ULTIMATE.start_main_~i~5 52), 213211#(<= ULTIMATE.start_main_~i~5 59), 213210#(<= ULTIMATE.start_main_~i~5 58), 213209#(<= ULTIMATE.start_main_~i~5 57), 213208#(<= ULTIMATE.start_main_~i~5 56), 213215#(<= ULTIMATE.start_main_~i~5 63), 213214#(<= ULTIMATE.start_main_~i~5 62), 213213#(<= ULTIMATE.start_main_~i~5 61), 213212#(<= ULTIMATE.start_main_~i~5 60), 213219#(<= ULTIMATE.start_main_~i~5 67), 213218#(<= ULTIMATE.start_main_~i~5 66), 213217#(<= ULTIMATE.start_main_~i~5 65), 213216#(<= ULTIMATE.start_main_~i~5 64), 213223#(<= ULTIMATE.start_main_~i~5 71), 213222#(<= ULTIMATE.start_main_~i~5 70), 213221#(<= ULTIMATE.start_main_~i~5 69), 213220#(<= ULTIMATE.start_main_~i~5 68), 213227#(<= ULTIMATE.start_main_~i~5 75), 213226#(<= ULTIMATE.start_main_~i~5 74), 213225#(<= ULTIMATE.start_main_~i~5 73), 213224#(<= ULTIMATE.start_main_~i~5 72), 213231#(<= ULTIMATE.start_main_~i~5 79), 213230#(<= ULTIMATE.start_main_~i~5 78), 213229#(<= ULTIMATE.start_main_~i~5 77), 213228#(<= ULTIMATE.start_main_~i~5 76), 213235#(<= ULTIMATE.start_main_~i~5 83), 213234#(<= ULTIMATE.start_main_~i~5 82), 213233#(<= ULTIMATE.start_main_~i~5 81), 213232#(<= ULTIMATE.start_main_~i~5 80), 213239#(<= ULTIMATE.start_main_~i~5 87), 213238#(<= ULTIMATE.start_main_~i~5 86), 213237#(<= ULTIMATE.start_main_~i~5 85), 213236#(<= ULTIMATE.start_main_~i~5 84), 213243#(<= ULTIMATE.start_main_~i~5 91), 213242#(<= ULTIMATE.start_main_~i~5 90), 213241#(<= ULTIMATE.start_main_~i~5 89), 213240#(<= ULTIMATE.start_main_~i~5 88), 213247#(<= ULTIMATE.start_main_~i~5 95), 213246#(<= ULTIMATE.start_main_~i~5 94), 213245#(<= ULTIMATE.start_main_~i~5 93), 213244#(<= ULTIMATE.start_main_~i~5 92), 213251#(<= ULTIMATE.start_main_~i~5 99), 213250#(<= ULTIMATE.start_main_~i~5 98), 213249#(<= ULTIMATE.start_main_~i~5 97), 213248#(<= ULTIMATE.start_main_~i~5 96), 213255#(<= ULTIMATE.start_main_~i~5 103), 213254#(<= ULTIMATE.start_main_~i~5 102), 213253#(<= ULTIMATE.start_main_~i~5 101), 213252#(<= ULTIMATE.start_main_~i~5 100), 213259#(<= ULTIMATE.start_main_~i~5 107), 213258#(<= ULTIMATE.start_main_~i~5 106), 213257#(<= ULTIMATE.start_main_~i~5 105), 213256#(<= ULTIMATE.start_main_~i~5 104), 213263#(<= ULTIMATE.start_main_~j~5 106), 213262#(<= ULTIMATE.start_main_~j~5 107), 213261#(<= ULTIMATE.start_main_~j~5 108), 213260#(<= ULTIMATE.start_main_~i~5 108), 213267#(<= ULTIMATE.start_main_~j~5 102), 213266#(<= ULTIMATE.start_main_~j~5 103), 213265#(<= ULTIMATE.start_main_~j~5 104), 213264#(<= ULTIMATE.start_main_~j~5 105), 213271#(<= ULTIMATE.start_main_~j~5 98), 213270#(<= ULTIMATE.start_main_~j~5 99), 213269#(<= ULTIMATE.start_main_~j~5 100), 213268#(<= ULTIMATE.start_main_~j~5 101), 213275#(<= ULTIMATE.start_main_~j~5 94), 213274#(<= ULTIMATE.start_main_~j~5 95), 213273#(<= ULTIMATE.start_main_~j~5 96), 213272#(<= ULTIMATE.start_main_~j~5 97), 213279#(<= ULTIMATE.start_main_~j~5 90), 213278#(<= ULTIMATE.start_main_~j~5 91), 213277#(<= ULTIMATE.start_main_~j~5 92), 213276#(<= ULTIMATE.start_main_~j~5 93), 213283#(<= ULTIMATE.start_main_~j~5 86), 213282#(<= ULTIMATE.start_main_~j~5 87), 213281#(<= ULTIMATE.start_main_~j~5 88), 213280#(<= ULTIMATE.start_main_~j~5 89), 213287#(<= ULTIMATE.start_main_~j~5 82), 213286#(<= ULTIMATE.start_main_~j~5 83), 213285#(<= ULTIMATE.start_main_~j~5 84), 213284#(<= ULTIMATE.start_main_~j~5 85), 213291#(<= ULTIMATE.start_main_~j~5 78), 213290#(<= ULTIMATE.start_main_~j~5 79), 213289#(<= ULTIMATE.start_main_~j~5 80), 213288#(<= ULTIMATE.start_main_~j~5 81), 213295#(<= ULTIMATE.start_main_~j~5 74), 213294#(<= ULTIMATE.start_main_~j~5 75), 213293#(<= ULTIMATE.start_main_~j~5 76), 213292#(<= ULTIMATE.start_main_~j~5 77), 213299#(<= ULTIMATE.start_main_~j~5 70), 213298#(<= ULTIMATE.start_main_~j~5 71), 213297#(<= ULTIMATE.start_main_~j~5 72), 213296#(<= ULTIMATE.start_main_~j~5 73), 213303#(<= ULTIMATE.start_main_~j~5 66), 213302#(<= ULTIMATE.start_main_~j~5 67), 213301#(<= ULTIMATE.start_main_~j~5 68), 213300#(<= ULTIMATE.start_main_~j~5 69), 213307#(<= ULTIMATE.start_main_~j~5 62), 213306#(<= ULTIMATE.start_main_~j~5 63), 213305#(<= ULTIMATE.start_main_~j~5 64), 213304#(<= ULTIMATE.start_main_~j~5 65), 213311#(<= ULTIMATE.start_main_~j~5 58), 213310#(<= ULTIMATE.start_main_~j~5 59), 213309#(<= ULTIMATE.start_main_~j~5 60), 213308#(<= ULTIMATE.start_main_~j~5 61), 213315#(<= ULTIMATE.start_main_~j~5 54), 213314#(<= ULTIMATE.start_main_~j~5 55), 213313#(<= ULTIMATE.start_main_~j~5 56), 213312#(<= ULTIMATE.start_main_~j~5 57), 213319#(<= ULTIMATE.start_main_~j~5 50), 213318#(<= ULTIMATE.start_main_~j~5 51), 213317#(<= ULTIMATE.start_main_~j~5 52), 213316#(<= ULTIMATE.start_main_~j~5 53), 213323#(<= ULTIMATE.start_main_~j~5 46), 213322#(<= ULTIMATE.start_main_~j~5 47), 213321#(<= ULTIMATE.start_main_~j~5 48), 213320#(<= ULTIMATE.start_main_~j~5 49), 213327#(<= ULTIMATE.start_main_~j~5 42), 213326#(<= ULTIMATE.start_main_~j~5 43), 213325#(<= ULTIMATE.start_main_~j~5 44), 213324#(<= ULTIMATE.start_main_~j~5 45), 213331#(<= ULTIMATE.start_main_~j~5 38), 213330#(<= ULTIMATE.start_main_~j~5 39), 213329#(<= ULTIMATE.start_main_~j~5 40), 213328#(<= ULTIMATE.start_main_~j~5 41), 213335#(<= ULTIMATE.start_main_~j~5 34), 213334#(<= ULTIMATE.start_main_~j~5 35), 213333#(<= ULTIMATE.start_main_~j~5 36), 213332#(<= ULTIMATE.start_main_~j~5 37), 213339#(<= ULTIMATE.start_main_~j~5 30), 213338#(<= ULTIMATE.start_main_~j~5 31), 213337#(<= ULTIMATE.start_main_~j~5 32), 213336#(<= ULTIMATE.start_main_~j~5 33), 213343#(<= ULTIMATE.start_main_~j~5 26), 213342#(<= ULTIMATE.start_main_~j~5 27), 213341#(<= ULTIMATE.start_main_~j~5 28), 213340#(<= ULTIMATE.start_main_~j~5 29), 213347#(<= ULTIMATE.start_main_~j~5 22), 213346#(<= ULTIMATE.start_main_~j~5 23), 213345#(<= ULTIMATE.start_main_~j~5 24), 213344#(<= ULTIMATE.start_main_~j~5 25), 213351#(<= ULTIMATE.start_main_~j~5 18), 213350#(<= ULTIMATE.start_main_~j~5 19), 213349#(<= ULTIMATE.start_main_~j~5 20), 213348#(<= ULTIMATE.start_main_~j~5 21), 213355#(<= ULTIMATE.start_main_~j~5 14), 213354#(<= ULTIMATE.start_main_~j~5 15), 213353#(<= ULTIMATE.start_main_~j~5 16), 213352#(<= ULTIMATE.start_main_~j~5 17), 213359#(<= ULTIMATE.start_main_~j~5 10), 213358#(<= ULTIMATE.start_main_~j~5 11), 213357#(<= ULTIMATE.start_main_~j~5 12), 213356#(<= ULTIMATE.start_main_~j~5 13), 213363#(<= ULTIMATE.start_main_~j~5 6), 213362#(<= ULTIMATE.start_main_~j~5 7), 213361#(<= ULTIMATE.start_main_~j~5 8), 213360#(<= ULTIMATE.start_main_~j~5 9), 213367#(<= ULTIMATE.start_main_~j~5 2), 213366#(<= ULTIMATE.start_main_~j~5 3), 213365#(<= ULTIMATE.start_main_~j~5 4), 213364#(<= ULTIMATE.start_main_~j~5 5), 213369#(<= ULTIMATE.start_main_~j~5 0), 213368#(<= ULTIMATE.start_main_~j~5 1)] [2018-07-23 13:43:54,591 INFO L134 CoverageAnalysis]: Checked inductivity of 17658 backedges. 11772 proven. 5886 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:54,591 INFO L450 AbstractCegarLoop]: Interpolant automaton has 220 states [2018-07-23 13:43:54,593 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 220 interpolants. [2018-07-23 13:43:54,595 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12209, Invalid=35971, Unknown=0, NotChecked=0, Total=48180 [2018-07-23 13:43:54,595 INFO L87 Difference]: Start difference. First operand 330 states and 331 transitions. Second operand 220 states. [2018-07-23 13:43:56,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:43:56,533 INFO L93 Difference]: Finished difference Result 552 states and 554 transitions. [2018-07-23 13:43:56,533 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 220 states. [2018-07-23 13:43:56,533 INFO L78 Accepts]: Start accepts. Automaton has 220 states. Word has length 329 [2018-07-23 13:43:56,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:43:56,533 INFO L225 Difference]: With dead ends: 552 [2018-07-23 13:43:56,533 INFO L226 Difference]: Without dead ends: 331 [2018-07-23 13:43:56,537 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 327 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17550 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=24417, Invalid=83495, Unknown=0, NotChecked=0, Total=107912 [2018-07-23 13:43:56,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2018-07-23 13:43:56,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 331. [2018-07-23 13:43:56,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 331 states. [2018-07-23 13:43:56,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 332 transitions. [2018-07-23 13:43:56,580 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 332 transitions. Word has length 329 [2018-07-23 13:43:56,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:43:56,580 INFO L471 AbstractCegarLoop]: Abstraction has 331 states and 332 transitions. [2018-07-23 13:43:56,580 INFO L472 AbstractCegarLoop]: Interpolant automaton has 220 states. [2018-07-23 13:43:56,580 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 332 transitions. [2018-07-23 13:43:56,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2018-07-23 13:43:56,581 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:43:56,581 INFO L357 BasicCegarLoop]: trace histogram [109, 109, 108, 1, 1, 1, 1] [2018-07-23 13:43:56,581 INFO L414 AbstractCegarLoop]: === Iteration 218 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:43:56,581 INFO L82 PathProgramCache]: Analyzing trace with hash -1342291198, now seen corresponding path program 216 times [2018-07-23 13:43:56,581 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:43:56,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:43:57,286 INFO L134 CoverageAnalysis]: Checked inductivity of 17767 backedges. 5995 proven. 11772 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:57,286 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:43:57,286 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [112] total 112 [2018-07-23 13:43:57,287 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:43:57,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:57,287 INFO L185 omatonBuilderFactory]: Interpolants [215355#false, 215354#true, 215359#(<= 3 ULTIMATE.start_main_~k~5), 215358#(<= 2 ULTIMATE.start_main_~k~5), 215357#(<= 1 ULTIMATE.start_main_~k~5), 215356#(<= 0 ULTIMATE.start_main_~k~5), 215363#(<= 7 ULTIMATE.start_main_~k~5), 215362#(<= 6 ULTIMATE.start_main_~k~5), 215361#(<= 5 ULTIMATE.start_main_~k~5), 215360#(<= 4 ULTIMATE.start_main_~k~5), 215367#(<= 11 ULTIMATE.start_main_~k~5), 215366#(<= 10 ULTIMATE.start_main_~k~5), 215365#(<= 9 ULTIMATE.start_main_~k~5), 215364#(<= 8 ULTIMATE.start_main_~k~5), 215371#(<= 15 ULTIMATE.start_main_~k~5), 215370#(<= 14 ULTIMATE.start_main_~k~5), 215369#(<= 13 ULTIMATE.start_main_~k~5), 215368#(<= 12 ULTIMATE.start_main_~k~5), 215375#(<= 19 ULTIMATE.start_main_~k~5), 215374#(<= 18 ULTIMATE.start_main_~k~5), 215373#(<= 17 ULTIMATE.start_main_~k~5), 215372#(<= 16 ULTIMATE.start_main_~k~5), 215379#(<= 23 ULTIMATE.start_main_~k~5), 215378#(<= 22 ULTIMATE.start_main_~k~5), 215377#(<= 21 ULTIMATE.start_main_~k~5), 215376#(<= 20 ULTIMATE.start_main_~k~5), 215383#(<= 27 ULTIMATE.start_main_~k~5), 215382#(<= 26 ULTIMATE.start_main_~k~5), 215381#(<= 25 ULTIMATE.start_main_~k~5), 215380#(<= 24 ULTIMATE.start_main_~k~5), 215387#(<= 31 ULTIMATE.start_main_~k~5), 215386#(<= 30 ULTIMATE.start_main_~k~5), 215385#(<= 29 ULTIMATE.start_main_~k~5), 215384#(<= 28 ULTIMATE.start_main_~k~5), 215391#(<= 35 ULTIMATE.start_main_~k~5), 215390#(<= 34 ULTIMATE.start_main_~k~5), 215389#(<= 33 ULTIMATE.start_main_~k~5), 215388#(<= 32 ULTIMATE.start_main_~k~5), 215395#(<= 39 ULTIMATE.start_main_~k~5), 215394#(<= 38 ULTIMATE.start_main_~k~5), 215393#(<= 37 ULTIMATE.start_main_~k~5), 215392#(<= 36 ULTIMATE.start_main_~k~5), 215399#(<= 43 ULTIMATE.start_main_~k~5), 215398#(<= 42 ULTIMATE.start_main_~k~5), 215397#(<= 41 ULTIMATE.start_main_~k~5), 215396#(<= 40 ULTIMATE.start_main_~k~5), 215403#(<= 47 ULTIMATE.start_main_~k~5), 215402#(<= 46 ULTIMATE.start_main_~k~5), 215401#(<= 45 ULTIMATE.start_main_~k~5), 215400#(<= 44 ULTIMATE.start_main_~k~5), 215407#(<= 51 ULTIMATE.start_main_~k~5), 215406#(<= 50 ULTIMATE.start_main_~k~5), 215405#(<= 49 ULTIMATE.start_main_~k~5), 215404#(<= 48 ULTIMATE.start_main_~k~5), 215411#(<= 55 ULTIMATE.start_main_~k~5), 215410#(<= 54 ULTIMATE.start_main_~k~5), 215409#(<= 53 ULTIMATE.start_main_~k~5), 215408#(<= 52 ULTIMATE.start_main_~k~5), 215415#(<= 59 ULTIMATE.start_main_~k~5), 215414#(<= 58 ULTIMATE.start_main_~k~5), 215413#(<= 57 ULTIMATE.start_main_~k~5), 215412#(<= 56 ULTIMATE.start_main_~k~5), 215419#(<= 63 ULTIMATE.start_main_~k~5), 215418#(<= 62 ULTIMATE.start_main_~k~5), 215417#(<= 61 ULTIMATE.start_main_~k~5), 215416#(<= 60 ULTIMATE.start_main_~k~5), 215423#(<= 67 ULTIMATE.start_main_~k~5), 215422#(<= 66 ULTIMATE.start_main_~k~5), 215421#(<= 65 ULTIMATE.start_main_~k~5), 215420#(<= 64 ULTIMATE.start_main_~k~5), 215427#(<= 71 ULTIMATE.start_main_~k~5), 215426#(<= 70 ULTIMATE.start_main_~k~5), 215425#(<= 69 ULTIMATE.start_main_~k~5), 215424#(<= 68 ULTIMATE.start_main_~k~5), 215431#(<= 75 ULTIMATE.start_main_~k~5), 215430#(<= 74 ULTIMATE.start_main_~k~5), 215429#(<= 73 ULTIMATE.start_main_~k~5), 215428#(<= 72 ULTIMATE.start_main_~k~5), 215435#(<= 79 ULTIMATE.start_main_~k~5), 215434#(<= 78 ULTIMATE.start_main_~k~5), 215433#(<= 77 ULTIMATE.start_main_~k~5), 215432#(<= 76 ULTIMATE.start_main_~k~5), 215439#(<= 83 ULTIMATE.start_main_~k~5), 215438#(<= 82 ULTIMATE.start_main_~k~5), 215437#(<= 81 ULTIMATE.start_main_~k~5), 215436#(<= 80 ULTIMATE.start_main_~k~5), 215443#(<= 87 ULTIMATE.start_main_~k~5), 215442#(<= 86 ULTIMATE.start_main_~k~5), 215441#(<= 85 ULTIMATE.start_main_~k~5), 215440#(<= 84 ULTIMATE.start_main_~k~5), 215447#(<= 91 ULTIMATE.start_main_~k~5), 215446#(<= 90 ULTIMATE.start_main_~k~5), 215445#(<= 89 ULTIMATE.start_main_~k~5), 215444#(<= 88 ULTIMATE.start_main_~k~5), 215451#(<= 95 ULTIMATE.start_main_~k~5), 215450#(<= 94 ULTIMATE.start_main_~k~5), 215449#(<= 93 ULTIMATE.start_main_~k~5), 215448#(<= 92 ULTIMATE.start_main_~k~5), 215455#(<= 99 ULTIMATE.start_main_~k~5), 215454#(<= 98 ULTIMATE.start_main_~k~5), 215453#(<= 97 ULTIMATE.start_main_~k~5), 215452#(<= 96 ULTIMATE.start_main_~k~5), 215459#(<= 103 ULTIMATE.start_main_~k~5), 215458#(<= 102 ULTIMATE.start_main_~k~5), 215457#(<= 101 ULTIMATE.start_main_~k~5), 215456#(<= 100 ULTIMATE.start_main_~k~5), 215463#(<= 107 ULTIMATE.start_main_~k~5), 215462#(<= 106 ULTIMATE.start_main_~k~5), 215461#(<= 105 ULTIMATE.start_main_~k~5), 215460#(<= 104 ULTIMATE.start_main_~k~5), 215466#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 215465#(<= 109 ULTIMATE.start_main_~k~5), 215464#(<= 108 ULTIMATE.start_main_~k~5)] [2018-07-23 13:43:57,288 INFO L134 CoverageAnalysis]: Checked inductivity of 17767 backedges. 5995 proven. 11772 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:57,288 INFO L450 AbstractCegarLoop]: Interpolant automaton has 113 states [2018-07-23 13:43:57,289 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 113 interpolants. [2018-07-23 13:43:57,289 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6218, Invalid=6438, Unknown=0, NotChecked=0, Total=12656 [2018-07-23 13:43:57,289 INFO L87 Difference]: Start difference. First operand 331 states and 332 transitions. Second operand 113 states. [2018-07-23 13:43:57,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:43:57,776 INFO L93 Difference]: Finished difference Result 339 states and 340 transitions. [2018-07-23 13:43:57,776 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 222 states. [2018-07-23 13:43:57,776 INFO L78 Accepts]: Start accepts. Automaton has 113 states. Word has length 330 [2018-07-23 13:43:57,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:43:57,777 INFO L225 Difference]: With dead ends: 339 [2018-07-23 13:43:57,777 INFO L226 Difference]: Without dead ends: 337 [2018-07-23 13:43:57,779 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 221 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11990 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18648, Invalid=30858, Unknown=0, NotChecked=0, Total=49506 [2018-07-23 13:43:57,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2018-07-23 13:43:57,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 333. [2018-07-23 13:43:57,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 333 states. [2018-07-23 13:43:57,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 334 transitions. [2018-07-23 13:43:57,823 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 334 transitions. Word has length 330 [2018-07-23 13:43:57,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:43:57,823 INFO L471 AbstractCegarLoop]: Abstraction has 333 states and 334 transitions. [2018-07-23 13:43:57,823 INFO L472 AbstractCegarLoop]: Interpolant automaton has 113 states. [2018-07-23 13:43:57,823 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 334 transitions. [2018-07-23 13:43:57,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2018-07-23 13:43:57,824 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:43:57,824 INFO L357 BasicCegarLoop]: trace histogram [110, 109, 109, 1, 1, 1, 1] [2018-07-23 13:43:57,824 INFO L414 AbstractCegarLoop]: === Iteration 219 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:43:57,824 INFO L82 PathProgramCache]: Analyzing trace with hash -1451586454, now seen corresponding path program 217 times [2018-07-23 13:43:57,824 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:43:58,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:43:58,893 INFO L134 CoverageAnalysis]: Checked inductivity of 17985 backedges. 11990 proven. 5995 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:58,893 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:43:58,894 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [221] total 221 [2018-07-23 13:43:58,894 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:43:58,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:58,894 INFO L185 omatonBuilderFactory]: Interpolants [217091#(<= ULTIMATE.start_main_~i~5 58), 217090#(<= ULTIMATE.start_main_~i~5 57), 217089#(<= ULTIMATE.start_main_~i~5 56), 217088#(<= ULTIMATE.start_main_~i~5 55), 217095#(<= ULTIMATE.start_main_~i~5 62), 217094#(<= ULTIMATE.start_main_~i~5 61), 217093#(<= ULTIMATE.start_main_~i~5 60), 217092#(<= ULTIMATE.start_main_~i~5 59), 217099#(<= ULTIMATE.start_main_~i~5 66), 217098#(<= ULTIMATE.start_main_~i~5 65), 217097#(<= ULTIMATE.start_main_~i~5 64), 217096#(<= ULTIMATE.start_main_~i~5 63), 217103#(<= ULTIMATE.start_main_~i~5 70), 217102#(<= ULTIMATE.start_main_~i~5 69), 217101#(<= ULTIMATE.start_main_~i~5 68), 217100#(<= ULTIMATE.start_main_~i~5 67), 217107#(<= ULTIMATE.start_main_~i~5 74), 217106#(<= ULTIMATE.start_main_~i~5 73), 217105#(<= ULTIMATE.start_main_~i~5 72), 217104#(<= ULTIMATE.start_main_~i~5 71), 217111#(<= ULTIMATE.start_main_~i~5 78), 217110#(<= ULTIMATE.start_main_~i~5 77), 217109#(<= ULTIMATE.start_main_~i~5 76), 217108#(<= ULTIMATE.start_main_~i~5 75), 217115#(<= ULTIMATE.start_main_~i~5 82), 217114#(<= ULTIMATE.start_main_~i~5 81), 217113#(<= ULTIMATE.start_main_~i~5 80), 217112#(<= ULTIMATE.start_main_~i~5 79), 217119#(<= ULTIMATE.start_main_~i~5 86), 217118#(<= ULTIMATE.start_main_~i~5 85), 217117#(<= ULTIMATE.start_main_~i~5 84), 217116#(<= ULTIMATE.start_main_~i~5 83), 217123#(<= ULTIMATE.start_main_~i~5 90), 217122#(<= ULTIMATE.start_main_~i~5 89), 217121#(<= ULTIMATE.start_main_~i~5 88), 217120#(<= ULTIMATE.start_main_~i~5 87), 217127#(<= ULTIMATE.start_main_~i~5 94), 217126#(<= ULTIMATE.start_main_~i~5 93), 217125#(<= ULTIMATE.start_main_~i~5 92), 217124#(<= ULTIMATE.start_main_~i~5 91), 217131#(<= ULTIMATE.start_main_~i~5 98), 217130#(<= ULTIMATE.start_main_~i~5 97), 217129#(<= ULTIMATE.start_main_~i~5 96), 217128#(<= ULTIMATE.start_main_~i~5 95), 217135#(<= ULTIMATE.start_main_~i~5 102), 217134#(<= ULTIMATE.start_main_~i~5 101), 217133#(<= ULTIMATE.start_main_~i~5 100), 217132#(<= ULTIMATE.start_main_~i~5 99), 217139#(<= ULTIMATE.start_main_~i~5 106), 217138#(<= ULTIMATE.start_main_~i~5 105), 217137#(<= ULTIMATE.start_main_~i~5 104), 217136#(<= ULTIMATE.start_main_~i~5 103), 217143#(<= ULTIMATE.start_main_~j~5 109), 217142#(<= ULTIMATE.start_main_~i~5 109), 217141#(<= ULTIMATE.start_main_~i~5 108), 217140#(<= ULTIMATE.start_main_~i~5 107), 217147#(<= ULTIMATE.start_main_~j~5 105), 217146#(<= ULTIMATE.start_main_~j~5 106), 217145#(<= ULTIMATE.start_main_~j~5 107), 217144#(<= ULTIMATE.start_main_~j~5 108), 217151#(<= ULTIMATE.start_main_~j~5 101), 217150#(<= ULTIMATE.start_main_~j~5 102), 217149#(<= ULTIMATE.start_main_~j~5 103), 217148#(<= ULTIMATE.start_main_~j~5 104), 217155#(<= ULTIMATE.start_main_~j~5 97), 217154#(<= ULTIMATE.start_main_~j~5 98), 217153#(<= ULTIMATE.start_main_~j~5 99), 217152#(<= ULTIMATE.start_main_~j~5 100), 217159#(<= ULTIMATE.start_main_~j~5 93), 217158#(<= ULTIMATE.start_main_~j~5 94), 217157#(<= ULTIMATE.start_main_~j~5 95), 217156#(<= ULTIMATE.start_main_~j~5 96), 217163#(<= ULTIMATE.start_main_~j~5 89), 217162#(<= ULTIMATE.start_main_~j~5 90), 217161#(<= ULTIMATE.start_main_~j~5 91), 217160#(<= ULTIMATE.start_main_~j~5 92), 217167#(<= ULTIMATE.start_main_~j~5 85), 217166#(<= ULTIMATE.start_main_~j~5 86), 217165#(<= ULTIMATE.start_main_~j~5 87), 217164#(<= ULTIMATE.start_main_~j~5 88), 217171#(<= ULTIMATE.start_main_~j~5 81), 217170#(<= ULTIMATE.start_main_~j~5 82), 217169#(<= ULTIMATE.start_main_~j~5 83), 217168#(<= ULTIMATE.start_main_~j~5 84), 217175#(<= ULTIMATE.start_main_~j~5 77), 217174#(<= ULTIMATE.start_main_~j~5 78), 217173#(<= ULTIMATE.start_main_~j~5 79), 217172#(<= ULTIMATE.start_main_~j~5 80), 217179#(<= ULTIMATE.start_main_~j~5 73), 217178#(<= ULTIMATE.start_main_~j~5 74), 217177#(<= ULTIMATE.start_main_~j~5 75), 217176#(<= ULTIMATE.start_main_~j~5 76), 217183#(<= ULTIMATE.start_main_~j~5 69), 217182#(<= ULTIMATE.start_main_~j~5 70), 217181#(<= ULTIMATE.start_main_~j~5 71), 217180#(<= ULTIMATE.start_main_~j~5 72), 217187#(<= ULTIMATE.start_main_~j~5 65), 217186#(<= ULTIMATE.start_main_~j~5 66), 217185#(<= ULTIMATE.start_main_~j~5 67), 217184#(<= ULTIMATE.start_main_~j~5 68), 217191#(<= ULTIMATE.start_main_~j~5 61), 217190#(<= ULTIMATE.start_main_~j~5 62), 217189#(<= ULTIMATE.start_main_~j~5 63), 217188#(<= ULTIMATE.start_main_~j~5 64), 217195#(<= ULTIMATE.start_main_~j~5 57), 217194#(<= ULTIMATE.start_main_~j~5 58), 217193#(<= ULTIMATE.start_main_~j~5 59), 217192#(<= ULTIMATE.start_main_~j~5 60), 217199#(<= ULTIMATE.start_main_~j~5 53), 217198#(<= ULTIMATE.start_main_~j~5 54), 217197#(<= ULTIMATE.start_main_~j~5 55), 217196#(<= ULTIMATE.start_main_~j~5 56), 217203#(<= ULTIMATE.start_main_~j~5 49), 217202#(<= ULTIMATE.start_main_~j~5 50), 217201#(<= ULTIMATE.start_main_~j~5 51), 217200#(<= ULTIMATE.start_main_~j~5 52), 217207#(<= ULTIMATE.start_main_~j~5 45), 217206#(<= ULTIMATE.start_main_~j~5 46), 217205#(<= ULTIMATE.start_main_~j~5 47), 217204#(<= ULTIMATE.start_main_~j~5 48), 217211#(<= ULTIMATE.start_main_~j~5 41), 217210#(<= ULTIMATE.start_main_~j~5 42), 217209#(<= ULTIMATE.start_main_~j~5 43), 217208#(<= ULTIMATE.start_main_~j~5 44), 217215#(<= ULTIMATE.start_main_~j~5 37), 217214#(<= ULTIMATE.start_main_~j~5 38), 217213#(<= ULTIMATE.start_main_~j~5 39), 217212#(<= ULTIMATE.start_main_~j~5 40), 217219#(<= ULTIMATE.start_main_~j~5 33), 217218#(<= ULTIMATE.start_main_~j~5 34), 217217#(<= ULTIMATE.start_main_~j~5 35), 217216#(<= ULTIMATE.start_main_~j~5 36), 217223#(<= ULTIMATE.start_main_~j~5 29), 217222#(<= ULTIMATE.start_main_~j~5 30), 217221#(<= ULTIMATE.start_main_~j~5 31), 217220#(<= ULTIMATE.start_main_~j~5 32), 217227#(<= ULTIMATE.start_main_~j~5 25), 217226#(<= ULTIMATE.start_main_~j~5 26), 217225#(<= ULTIMATE.start_main_~j~5 27), 217224#(<= ULTIMATE.start_main_~j~5 28), 217231#(<= ULTIMATE.start_main_~j~5 21), 217230#(<= ULTIMATE.start_main_~j~5 22), 217229#(<= ULTIMATE.start_main_~j~5 23), 217228#(<= ULTIMATE.start_main_~j~5 24), 217235#(<= ULTIMATE.start_main_~j~5 17), 217234#(<= ULTIMATE.start_main_~j~5 18), 217233#(<= ULTIMATE.start_main_~j~5 19), 217232#(<= ULTIMATE.start_main_~j~5 20), 217239#(<= ULTIMATE.start_main_~j~5 13), 217238#(<= ULTIMATE.start_main_~j~5 14), 217237#(<= ULTIMATE.start_main_~j~5 15), 217236#(<= ULTIMATE.start_main_~j~5 16), 217243#(<= ULTIMATE.start_main_~j~5 9), 217242#(<= ULTIMATE.start_main_~j~5 10), 217241#(<= ULTIMATE.start_main_~j~5 11), 217240#(<= ULTIMATE.start_main_~j~5 12), 217247#(<= ULTIMATE.start_main_~j~5 5), 217246#(<= ULTIMATE.start_main_~j~5 6), 217245#(<= ULTIMATE.start_main_~j~5 7), 217244#(<= ULTIMATE.start_main_~j~5 8), 217251#(<= ULTIMATE.start_main_~j~5 1), 217250#(<= ULTIMATE.start_main_~j~5 2), 217249#(<= ULTIMATE.start_main_~j~5 3), 217248#(<= ULTIMATE.start_main_~j~5 4), 217252#(<= ULTIMATE.start_main_~j~5 0), 217031#true, 217035#(<= ULTIMATE.start_main_~i~5 2), 217034#(<= ULTIMATE.start_main_~i~5 1), 217033#(<= ULTIMATE.start_main_~i~5 0), 217032#false, 217039#(<= ULTIMATE.start_main_~i~5 6), 217038#(<= ULTIMATE.start_main_~i~5 5), 217037#(<= ULTIMATE.start_main_~i~5 4), 217036#(<= ULTIMATE.start_main_~i~5 3), 217043#(<= ULTIMATE.start_main_~i~5 10), 217042#(<= ULTIMATE.start_main_~i~5 9), 217041#(<= ULTIMATE.start_main_~i~5 8), 217040#(<= ULTIMATE.start_main_~i~5 7), 217047#(<= ULTIMATE.start_main_~i~5 14), 217046#(<= ULTIMATE.start_main_~i~5 13), 217045#(<= ULTIMATE.start_main_~i~5 12), 217044#(<= ULTIMATE.start_main_~i~5 11), 217051#(<= ULTIMATE.start_main_~i~5 18), 217050#(<= ULTIMATE.start_main_~i~5 17), 217049#(<= ULTIMATE.start_main_~i~5 16), 217048#(<= ULTIMATE.start_main_~i~5 15), 217055#(<= ULTIMATE.start_main_~i~5 22), 217054#(<= ULTIMATE.start_main_~i~5 21), 217053#(<= ULTIMATE.start_main_~i~5 20), 217052#(<= ULTIMATE.start_main_~i~5 19), 217059#(<= ULTIMATE.start_main_~i~5 26), 217058#(<= ULTIMATE.start_main_~i~5 25), 217057#(<= ULTIMATE.start_main_~i~5 24), 217056#(<= ULTIMATE.start_main_~i~5 23), 217063#(<= ULTIMATE.start_main_~i~5 30), 217062#(<= ULTIMATE.start_main_~i~5 29), 217061#(<= ULTIMATE.start_main_~i~5 28), 217060#(<= ULTIMATE.start_main_~i~5 27), 217067#(<= ULTIMATE.start_main_~i~5 34), 217066#(<= ULTIMATE.start_main_~i~5 33), 217065#(<= ULTIMATE.start_main_~i~5 32), 217064#(<= ULTIMATE.start_main_~i~5 31), 217071#(<= ULTIMATE.start_main_~i~5 38), 217070#(<= ULTIMATE.start_main_~i~5 37), 217069#(<= ULTIMATE.start_main_~i~5 36), 217068#(<= ULTIMATE.start_main_~i~5 35), 217075#(<= ULTIMATE.start_main_~i~5 42), 217074#(<= ULTIMATE.start_main_~i~5 41), 217073#(<= ULTIMATE.start_main_~i~5 40), 217072#(<= ULTIMATE.start_main_~i~5 39), 217079#(<= ULTIMATE.start_main_~i~5 46), 217078#(<= ULTIMATE.start_main_~i~5 45), 217077#(<= ULTIMATE.start_main_~i~5 44), 217076#(<= ULTIMATE.start_main_~i~5 43), 217083#(<= ULTIMATE.start_main_~i~5 50), 217082#(<= ULTIMATE.start_main_~i~5 49), 217081#(<= ULTIMATE.start_main_~i~5 48), 217080#(<= ULTIMATE.start_main_~i~5 47), 217087#(<= ULTIMATE.start_main_~i~5 54), 217086#(<= ULTIMATE.start_main_~i~5 53), 217085#(<= ULTIMATE.start_main_~i~5 52), 217084#(<= ULTIMATE.start_main_~i~5 51)] [2018-07-23 13:43:58,895 INFO L134 CoverageAnalysis]: Checked inductivity of 17985 backedges. 11990 proven. 5995 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:43:58,896 INFO L450 AbstractCegarLoop]: Interpolant automaton has 222 states [2018-07-23 13:43:58,897 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 222 interpolants. [2018-07-23 13:43:58,898 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12431, Invalid=36631, Unknown=0, NotChecked=0, Total=49062 [2018-07-23 13:43:58,899 INFO L87 Difference]: Start difference. First operand 333 states and 334 transitions. Second operand 222 states. [2018-07-23 13:44:00,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:44:00,542 INFO L93 Difference]: Finished difference Result 557 states and 559 transitions. [2018-07-23 13:44:00,542 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 222 states. [2018-07-23 13:44:00,542 INFO L78 Accepts]: Start accepts. Automaton has 222 states. Word has length 332 [2018-07-23 13:44:00,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:44:00,543 INFO L225 Difference]: With dead ends: 557 [2018-07-23 13:44:00,543 INFO L226 Difference]: Without dead ends: 334 [2018-07-23 13:44:00,549 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 330 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17876 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=24861, Invalid=85031, Unknown=0, NotChecked=0, Total=109892 [2018-07-23 13:44:00,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2018-07-23 13:44:00,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 334. [2018-07-23 13:44:00,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 334 states. [2018-07-23 13:44:00,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 335 transitions. [2018-07-23 13:44:00,594 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 335 transitions. Word has length 332 [2018-07-23 13:44:00,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:44:00,594 INFO L471 AbstractCegarLoop]: Abstraction has 334 states and 335 transitions. [2018-07-23 13:44:00,594 INFO L472 AbstractCegarLoop]: Interpolant automaton has 222 states. [2018-07-23 13:44:00,594 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 335 transitions. [2018-07-23 13:44:00,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2018-07-23 13:44:00,595 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:44:00,595 INFO L357 BasicCegarLoop]: trace histogram [110, 110, 109, 1, 1, 1, 1] [2018-07-23 13:44:00,595 INFO L414 AbstractCegarLoop]: === Iteration 220 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:44:00,596 INFO L82 PathProgramCache]: Analyzing trace with hash 1844453987, now seen corresponding path program 218 times [2018-07-23 13:44:00,596 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:44:00,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:44:01,281 INFO L134 CoverageAnalysis]: Checked inductivity of 18095 backedges. 6105 proven. 11990 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:01,281 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:44:01,281 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [113] total 113 [2018-07-23 13:44:01,282 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:44:01,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:01,282 INFO L185 omatonBuilderFactory]: Interpolants [219255#true, 219259#(<= 2 ULTIMATE.start_main_~k~5), 219258#(<= 1 ULTIMATE.start_main_~k~5), 219257#(<= 0 ULTIMATE.start_main_~k~5), 219256#false, 219263#(<= 6 ULTIMATE.start_main_~k~5), 219262#(<= 5 ULTIMATE.start_main_~k~5), 219261#(<= 4 ULTIMATE.start_main_~k~5), 219260#(<= 3 ULTIMATE.start_main_~k~5), 219267#(<= 10 ULTIMATE.start_main_~k~5), 219266#(<= 9 ULTIMATE.start_main_~k~5), 219265#(<= 8 ULTIMATE.start_main_~k~5), 219264#(<= 7 ULTIMATE.start_main_~k~5), 219271#(<= 14 ULTIMATE.start_main_~k~5), 219270#(<= 13 ULTIMATE.start_main_~k~5), 219269#(<= 12 ULTIMATE.start_main_~k~5), 219268#(<= 11 ULTIMATE.start_main_~k~5), 219275#(<= 18 ULTIMATE.start_main_~k~5), 219274#(<= 17 ULTIMATE.start_main_~k~5), 219273#(<= 16 ULTIMATE.start_main_~k~5), 219272#(<= 15 ULTIMATE.start_main_~k~5), 219279#(<= 22 ULTIMATE.start_main_~k~5), 219278#(<= 21 ULTIMATE.start_main_~k~5), 219277#(<= 20 ULTIMATE.start_main_~k~5), 219276#(<= 19 ULTIMATE.start_main_~k~5), 219283#(<= 26 ULTIMATE.start_main_~k~5), 219282#(<= 25 ULTIMATE.start_main_~k~5), 219281#(<= 24 ULTIMATE.start_main_~k~5), 219280#(<= 23 ULTIMATE.start_main_~k~5), 219287#(<= 30 ULTIMATE.start_main_~k~5), 219286#(<= 29 ULTIMATE.start_main_~k~5), 219285#(<= 28 ULTIMATE.start_main_~k~5), 219284#(<= 27 ULTIMATE.start_main_~k~5), 219291#(<= 34 ULTIMATE.start_main_~k~5), 219290#(<= 33 ULTIMATE.start_main_~k~5), 219289#(<= 32 ULTIMATE.start_main_~k~5), 219288#(<= 31 ULTIMATE.start_main_~k~5), 219295#(<= 38 ULTIMATE.start_main_~k~5), 219294#(<= 37 ULTIMATE.start_main_~k~5), 219293#(<= 36 ULTIMATE.start_main_~k~5), 219292#(<= 35 ULTIMATE.start_main_~k~5), 219299#(<= 42 ULTIMATE.start_main_~k~5), 219298#(<= 41 ULTIMATE.start_main_~k~5), 219297#(<= 40 ULTIMATE.start_main_~k~5), 219296#(<= 39 ULTIMATE.start_main_~k~5), 219303#(<= 46 ULTIMATE.start_main_~k~5), 219302#(<= 45 ULTIMATE.start_main_~k~5), 219301#(<= 44 ULTIMATE.start_main_~k~5), 219300#(<= 43 ULTIMATE.start_main_~k~5), 219307#(<= 50 ULTIMATE.start_main_~k~5), 219306#(<= 49 ULTIMATE.start_main_~k~5), 219305#(<= 48 ULTIMATE.start_main_~k~5), 219304#(<= 47 ULTIMATE.start_main_~k~5), 219311#(<= 54 ULTIMATE.start_main_~k~5), 219310#(<= 53 ULTIMATE.start_main_~k~5), 219309#(<= 52 ULTIMATE.start_main_~k~5), 219308#(<= 51 ULTIMATE.start_main_~k~5), 219315#(<= 58 ULTIMATE.start_main_~k~5), 219314#(<= 57 ULTIMATE.start_main_~k~5), 219313#(<= 56 ULTIMATE.start_main_~k~5), 219312#(<= 55 ULTIMATE.start_main_~k~5), 219319#(<= 62 ULTIMATE.start_main_~k~5), 219318#(<= 61 ULTIMATE.start_main_~k~5), 219317#(<= 60 ULTIMATE.start_main_~k~5), 219316#(<= 59 ULTIMATE.start_main_~k~5), 219323#(<= 66 ULTIMATE.start_main_~k~5), 219322#(<= 65 ULTIMATE.start_main_~k~5), 219321#(<= 64 ULTIMATE.start_main_~k~5), 219320#(<= 63 ULTIMATE.start_main_~k~5), 219327#(<= 70 ULTIMATE.start_main_~k~5), 219326#(<= 69 ULTIMATE.start_main_~k~5), 219325#(<= 68 ULTIMATE.start_main_~k~5), 219324#(<= 67 ULTIMATE.start_main_~k~5), 219331#(<= 74 ULTIMATE.start_main_~k~5), 219330#(<= 73 ULTIMATE.start_main_~k~5), 219329#(<= 72 ULTIMATE.start_main_~k~5), 219328#(<= 71 ULTIMATE.start_main_~k~5), 219335#(<= 78 ULTIMATE.start_main_~k~5), 219334#(<= 77 ULTIMATE.start_main_~k~5), 219333#(<= 76 ULTIMATE.start_main_~k~5), 219332#(<= 75 ULTIMATE.start_main_~k~5), 219339#(<= 82 ULTIMATE.start_main_~k~5), 219338#(<= 81 ULTIMATE.start_main_~k~5), 219337#(<= 80 ULTIMATE.start_main_~k~5), 219336#(<= 79 ULTIMATE.start_main_~k~5), 219343#(<= 86 ULTIMATE.start_main_~k~5), 219342#(<= 85 ULTIMATE.start_main_~k~5), 219341#(<= 84 ULTIMATE.start_main_~k~5), 219340#(<= 83 ULTIMATE.start_main_~k~5), 219347#(<= 90 ULTIMATE.start_main_~k~5), 219346#(<= 89 ULTIMATE.start_main_~k~5), 219345#(<= 88 ULTIMATE.start_main_~k~5), 219344#(<= 87 ULTIMATE.start_main_~k~5), 219351#(<= 94 ULTIMATE.start_main_~k~5), 219350#(<= 93 ULTIMATE.start_main_~k~5), 219349#(<= 92 ULTIMATE.start_main_~k~5), 219348#(<= 91 ULTIMATE.start_main_~k~5), 219355#(<= 98 ULTIMATE.start_main_~k~5), 219354#(<= 97 ULTIMATE.start_main_~k~5), 219353#(<= 96 ULTIMATE.start_main_~k~5), 219352#(<= 95 ULTIMATE.start_main_~k~5), 219359#(<= 102 ULTIMATE.start_main_~k~5), 219358#(<= 101 ULTIMATE.start_main_~k~5), 219357#(<= 100 ULTIMATE.start_main_~k~5), 219356#(<= 99 ULTIMATE.start_main_~k~5), 219363#(<= 106 ULTIMATE.start_main_~k~5), 219362#(<= 105 ULTIMATE.start_main_~k~5), 219361#(<= 104 ULTIMATE.start_main_~k~5), 219360#(<= 103 ULTIMATE.start_main_~k~5), 219367#(<= 110 ULTIMATE.start_main_~k~5), 219366#(<= 109 ULTIMATE.start_main_~k~5), 219365#(<= 108 ULTIMATE.start_main_~k~5), 219364#(<= 107 ULTIMATE.start_main_~k~5), 219368#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond)] [2018-07-23 13:44:01,283 INFO L134 CoverageAnalysis]: Checked inductivity of 18095 backedges. 6105 proven. 11990 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:01,283 INFO L450 AbstractCegarLoop]: Interpolant automaton has 114 states [2018-07-23 13:44:01,284 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 114 interpolants. [2018-07-23 13:44:01,284 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6330, Invalid=6552, Unknown=0, NotChecked=0, Total=12882 [2018-07-23 13:44:01,284 INFO L87 Difference]: Start difference. First operand 334 states and 335 transitions. Second operand 114 states. [2018-07-23 13:44:01,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:44:01,784 INFO L93 Difference]: Finished difference Result 342 states and 343 transitions. [2018-07-23 13:44:01,784 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 224 states. [2018-07-23 13:44:01,784 INFO L78 Accepts]: Start accepts. Automaton has 114 states. Word has length 333 [2018-07-23 13:44:01,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:44:01,785 INFO L225 Difference]: With dead ends: 342 [2018-07-23 13:44:01,785 INFO L226 Difference]: Without dead ends: 340 [2018-07-23 13:44:01,789 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 223 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12210 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18984, Invalid=31416, Unknown=0, NotChecked=0, Total=50400 [2018-07-23 13:44:01,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2018-07-23 13:44:01,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 336. [2018-07-23 13:44:01,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2018-07-23 13:44:01,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 337 transitions. [2018-07-23 13:44:01,833 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 337 transitions. Word has length 333 [2018-07-23 13:44:01,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:44:01,834 INFO L471 AbstractCegarLoop]: Abstraction has 336 states and 337 transitions. [2018-07-23 13:44:01,834 INFO L472 AbstractCegarLoop]: Interpolant automaton has 114 states. [2018-07-23 13:44:01,834 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 337 transitions. [2018-07-23 13:44:01,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2018-07-23 13:44:01,835 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:44:01,835 INFO L357 BasicCegarLoop]: trace histogram [111, 110, 110, 1, 1, 1, 1] [2018-07-23 13:44:01,835 INFO L414 AbstractCegarLoop]: === Iteration 221 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:44:01,835 INFO L82 PathProgramCache]: Analyzing trace with hash -1301145717, now seen corresponding path program 219 times [2018-07-23 13:44:01,835 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:44:02,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:44:02,947 INFO L134 CoverageAnalysis]: Checked inductivity of 18315 backedges. 12210 proven. 6105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:02,947 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:44:02,947 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [223] total 223 [2018-07-23 13:44:02,947 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:44:02,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:02,948 INFO L185 omatonBuilderFactory]: Interpolants [220947#true, 220951#(<= ULTIMATE.start_main_~i~5 2), 220950#(<= ULTIMATE.start_main_~i~5 1), 220949#(<= ULTIMATE.start_main_~i~5 0), 220948#false, 220955#(<= ULTIMATE.start_main_~i~5 6), 220954#(<= ULTIMATE.start_main_~i~5 5), 220953#(<= ULTIMATE.start_main_~i~5 4), 220952#(<= ULTIMATE.start_main_~i~5 3), 220959#(<= ULTIMATE.start_main_~i~5 10), 220958#(<= ULTIMATE.start_main_~i~5 9), 220957#(<= ULTIMATE.start_main_~i~5 8), 220956#(<= ULTIMATE.start_main_~i~5 7), 220963#(<= ULTIMATE.start_main_~i~5 14), 220962#(<= ULTIMATE.start_main_~i~5 13), 220961#(<= ULTIMATE.start_main_~i~5 12), 220960#(<= ULTIMATE.start_main_~i~5 11), 220967#(<= ULTIMATE.start_main_~i~5 18), 220966#(<= ULTIMATE.start_main_~i~5 17), 220965#(<= ULTIMATE.start_main_~i~5 16), 220964#(<= ULTIMATE.start_main_~i~5 15), 220971#(<= ULTIMATE.start_main_~i~5 22), 220970#(<= ULTIMATE.start_main_~i~5 21), 220969#(<= ULTIMATE.start_main_~i~5 20), 220968#(<= ULTIMATE.start_main_~i~5 19), 220975#(<= ULTIMATE.start_main_~i~5 26), 220974#(<= ULTIMATE.start_main_~i~5 25), 220973#(<= ULTIMATE.start_main_~i~5 24), 220972#(<= ULTIMATE.start_main_~i~5 23), 220979#(<= ULTIMATE.start_main_~i~5 30), 220978#(<= ULTIMATE.start_main_~i~5 29), 220977#(<= ULTIMATE.start_main_~i~5 28), 220976#(<= ULTIMATE.start_main_~i~5 27), 220983#(<= ULTIMATE.start_main_~i~5 34), 220982#(<= ULTIMATE.start_main_~i~5 33), 220981#(<= ULTIMATE.start_main_~i~5 32), 220980#(<= ULTIMATE.start_main_~i~5 31), 220987#(<= ULTIMATE.start_main_~i~5 38), 220986#(<= ULTIMATE.start_main_~i~5 37), 220985#(<= ULTIMATE.start_main_~i~5 36), 220984#(<= ULTIMATE.start_main_~i~5 35), 220991#(<= ULTIMATE.start_main_~i~5 42), 220990#(<= ULTIMATE.start_main_~i~5 41), 220989#(<= ULTIMATE.start_main_~i~5 40), 220988#(<= ULTIMATE.start_main_~i~5 39), 220995#(<= ULTIMATE.start_main_~i~5 46), 220994#(<= ULTIMATE.start_main_~i~5 45), 220993#(<= ULTIMATE.start_main_~i~5 44), 220992#(<= ULTIMATE.start_main_~i~5 43), 220999#(<= ULTIMATE.start_main_~i~5 50), 220998#(<= ULTIMATE.start_main_~i~5 49), 220997#(<= ULTIMATE.start_main_~i~5 48), 220996#(<= ULTIMATE.start_main_~i~5 47), 221003#(<= ULTIMATE.start_main_~i~5 54), 221002#(<= ULTIMATE.start_main_~i~5 53), 221001#(<= ULTIMATE.start_main_~i~5 52), 221000#(<= ULTIMATE.start_main_~i~5 51), 221007#(<= ULTIMATE.start_main_~i~5 58), 221006#(<= ULTIMATE.start_main_~i~5 57), 221005#(<= ULTIMATE.start_main_~i~5 56), 221004#(<= ULTIMATE.start_main_~i~5 55), 221011#(<= ULTIMATE.start_main_~i~5 62), 221010#(<= ULTIMATE.start_main_~i~5 61), 221009#(<= ULTIMATE.start_main_~i~5 60), 221008#(<= ULTIMATE.start_main_~i~5 59), 221015#(<= ULTIMATE.start_main_~i~5 66), 221014#(<= ULTIMATE.start_main_~i~5 65), 221013#(<= ULTIMATE.start_main_~i~5 64), 221012#(<= ULTIMATE.start_main_~i~5 63), 221019#(<= ULTIMATE.start_main_~i~5 70), 221018#(<= ULTIMATE.start_main_~i~5 69), 221017#(<= ULTIMATE.start_main_~i~5 68), 221016#(<= ULTIMATE.start_main_~i~5 67), 221023#(<= ULTIMATE.start_main_~i~5 74), 221022#(<= ULTIMATE.start_main_~i~5 73), 221021#(<= ULTIMATE.start_main_~i~5 72), 221020#(<= ULTIMATE.start_main_~i~5 71), 221027#(<= ULTIMATE.start_main_~i~5 78), 221026#(<= ULTIMATE.start_main_~i~5 77), 221025#(<= ULTIMATE.start_main_~i~5 76), 221024#(<= ULTIMATE.start_main_~i~5 75), 221031#(<= ULTIMATE.start_main_~i~5 82), 221030#(<= ULTIMATE.start_main_~i~5 81), 221029#(<= ULTIMATE.start_main_~i~5 80), 221028#(<= ULTIMATE.start_main_~i~5 79), 221035#(<= ULTIMATE.start_main_~i~5 86), 221034#(<= ULTIMATE.start_main_~i~5 85), 221033#(<= ULTIMATE.start_main_~i~5 84), 221032#(<= ULTIMATE.start_main_~i~5 83), 221039#(<= ULTIMATE.start_main_~i~5 90), 221038#(<= ULTIMATE.start_main_~i~5 89), 221037#(<= ULTIMATE.start_main_~i~5 88), 221036#(<= ULTIMATE.start_main_~i~5 87), 221043#(<= ULTIMATE.start_main_~i~5 94), 221042#(<= ULTIMATE.start_main_~i~5 93), 221041#(<= ULTIMATE.start_main_~i~5 92), 221040#(<= ULTIMATE.start_main_~i~5 91), 221047#(<= ULTIMATE.start_main_~i~5 98), 221046#(<= ULTIMATE.start_main_~i~5 97), 221045#(<= ULTIMATE.start_main_~i~5 96), 221044#(<= ULTIMATE.start_main_~i~5 95), 221051#(<= ULTIMATE.start_main_~i~5 102), 221050#(<= ULTIMATE.start_main_~i~5 101), 221049#(<= ULTIMATE.start_main_~i~5 100), 221048#(<= ULTIMATE.start_main_~i~5 99), 221055#(<= ULTIMATE.start_main_~i~5 106), 221054#(<= ULTIMATE.start_main_~i~5 105), 221053#(<= ULTIMATE.start_main_~i~5 104), 221052#(<= ULTIMATE.start_main_~i~5 103), 221059#(<= ULTIMATE.start_main_~i~5 110), 221058#(<= ULTIMATE.start_main_~i~5 109), 221057#(<= ULTIMATE.start_main_~i~5 108), 221056#(<= ULTIMATE.start_main_~i~5 107), 221063#(<= ULTIMATE.start_main_~j~5 107), 221062#(<= ULTIMATE.start_main_~j~5 108), 221061#(<= ULTIMATE.start_main_~j~5 109), 221060#(<= ULTIMATE.start_main_~j~5 110), 221067#(<= ULTIMATE.start_main_~j~5 103), 221066#(<= ULTIMATE.start_main_~j~5 104), 221065#(<= ULTIMATE.start_main_~j~5 105), 221064#(<= ULTIMATE.start_main_~j~5 106), 221071#(<= ULTIMATE.start_main_~j~5 99), 221070#(<= ULTIMATE.start_main_~j~5 100), 221069#(<= ULTIMATE.start_main_~j~5 101), 221068#(<= ULTIMATE.start_main_~j~5 102), 221075#(<= ULTIMATE.start_main_~j~5 95), 221074#(<= ULTIMATE.start_main_~j~5 96), 221073#(<= ULTIMATE.start_main_~j~5 97), 221072#(<= ULTIMATE.start_main_~j~5 98), 221079#(<= ULTIMATE.start_main_~j~5 91), 221078#(<= ULTIMATE.start_main_~j~5 92), 221077#(<= ULTIMATE.start_main_~j~5 93), 221076#(<= ULTIMATE.start_main_~j~5 94), 221083#(<= ULTIMATE.start_main_~j~5 87), 221082#(<= ULTIMATE.start_main_~j~5 88), 221081#(<= ULTIMATE.start_main_~j~5 89), 221080#(<= ULTIMATE.start_main_~j~5 90), 221087#(<= ULTIMATE.start_main_~j~5 83), 221086#(<= ULTIMATE.start_main_~j~5 84), 221085#(<= ULTIMATE.start_main_~j~5 85), 221084#(<= ULTIMATE.start_main_~j~5 86), 221091#(<= ULTIMATE.start_main_~j~5 79), 221090#(<= ULTIMATE.start_main_~j~5 80), 221089#(<= ULTIMATE.start_main_~j~5 81), 221088#(<= ULTIMATE.start_main_~j~5 82), 221095#(<= ULTIMATE.start_main_~j~5 75), 221094#(<= ULTIMATE.start_main_~j~5 76), 221093#(<= ULTIMATE.start_main_~j~5 77), 221092#(<= ULTIMATE.start_main_~j~5 78), 221099#(<= ULTIMATE.start_main_~j~5 71), 221098#(<= ULTIMATE.start_main_~j~5 72), 221097#(<= ULTIMATE.start_main_~j~5 73), 221096#(<= ULTIMATE.start_main_~j~5 74), 221103#(<= ULTIMATE.start_main_~j~5 67), 221102#(<= ULTIMATE.start_main_~j~5 68), 221101#(<= ULTIMATE.start_main_~j~5 69), 221100#(<= ULTIMATE.start_main_~j~5 70), 221107#(<= ULTIMATE.start_main_~j~5 63), 221106#(<= ULTIMATE.start_main_~j~5 64), 221105#(<= ULTIMATE.start_main_~j~5 65), 221104#(<= ULTIMATE.start_main_~j~5 66), 221111#(<= ULTIMATE.start_main_~j~5 59), 221110#(<= ULTIMATE.start_main_~j~5 60), 221109#(<= ULTIMATE.start_main_~j~5 61), 221108#(<= ULTIMATE.start_main_~j~5 62), 221115#(<= ULTIMATE.start_main_~j~5 55), 221114#(<= ULTIMATE.start_main_~j~5 56), 221113#(<= ULTIMATE.start_main_~j~5 57), 221112#(<= ULTIMATE.start_main_~j~5 58), 221119#(<= ULTIMATE.start_main_~j~5 51), 221118#(<= ULTIMATE.start_main_~j~5 52), 221117#(<= ULTIMATE.start_main_~j~5 53), 221116#(<= ULTIMATE.start_main_~j~5 54), 221123#(<= ULTIMATE.start_main_~j~5 47), 221122#(<= ULTIMATE.start_main_~j~5 48), 221121#(<= ULTIMATE.start_main_~j~5 49), 221120#(<= ULTIMATE.start_main_~j~5 50), 221127#(<= ULTIMATE.start_main_~j~5 43), 221126#(<= ULTIMATE.start_main_~j~5 44), 221125#(<= ULTIMATE.start_main_~j~5 45), 221124#(<= ULTIMATE.start_main_~j~5 46), 221131#(<= ULTIMATE.start_main_~j~5 39), 221130#(<= ULTIMATE.start_main_~j~5 40), 221129#(<= ULTIMATE.start_main_~j~5 41), 221128#(<= ULTIMATE.start_main_~j~5 42), 221135#(<= ULTIMATE.start_main_~j~5 35), 221134#(<= ULTIMATE.start_main_~j~5 36), 221133#(<= ULTIMATE.start_main_~j~5 37), 221132#(<= ULTIMATE.start_main_~j~5 38), 221139#(<= ULTIMATE.start_main_~j~5 31), 221138#(<= ULTIMATE.start_main_~j~5 32), 221137#(<= ULTIMATE.start_main_~j~5 33), 221136#(<= ULTIMATE.start_main_~j~5 34), 221143#(<= ULTIMATE.start_main_~j~5 27), 221142#(<= ULTIMATE.start_main_~j~5 28), 221141#(<= ULTIMATE.start_main_~j~5 29), 221140#(<= ULTIMATE.start_main_~j~5 30), 221147#(<= ULTIMATE.start_main_~j~5 23), 221146#(<= ULTIMATE.start_main_~j~5 24), 221145#(<= ULTIMATE.start_main_~j~5 25), 221144#(<= ULTIMATE.start_main_~j~5 26), 221151#(<= ULTIMATE.start_main_~j~5 19), 221150#(<= ULTIMATE.start_main_~j~5 20), 221149#(<= ULTIMATE.start_main_~j~5 21), 221148#(<= ULTIMATE.start_main_~j~5 22), 221155#(<= ULTIMATE.start_main_~j~5 15), 221154#(<= ULTIMATE.start_main_~j~5 16), 221153#(<= ULTIMATE.start_main_~j~5 17), 221152#(<= ULTIMATE.start_main_~j~5 18), 221159#(<= ULTIMATE.start_main_~j~5 11), 221158#(<= ULTIMATE.start_main_~j~5 12), 221157#(<= ULTIMATE.start_main_~j~5 13), 221156#(<= ULTIMATE.start_main_~j~5 14), 221163#(<= ULTIMATE.start_main_~j~5 7), 221162#(<= ULTIMATE.start_main_~j~5 8), 221161#(<= ULTIMATE.start_main_~j~5 9), 221160#(<= ULTIMATE.start_main_~j~5 10), 221167#(<= ULTIMATE.start_main_~j~5 3), 221166#(<= ULTIMATE.start_main_~j~5 4), 221165#(<= ULTIMATE.start_main_~j~5 5), 221164#(<= ULTIMATE.start_main_~j~5 6), 221170#(<= ULTIMATE.start_main_~j~5 0), 221169#(<= ULTIMATE.start_main_~j~5 1), 221168#(<= ULTIMATE.start_main_~j~5 2)] [2018-07-23 13:44:02,949 INFO L134 CoverageAnalysis]: Checked inductivity of 18315 backedges. 12210 proven. 6105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:02,949 INFO L450 AbstractCegarLoop]: Interpolant automaton has 224 states [2018-07-23 13:44:02,950 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 224 interpolants. [2018-07-23 13:44:02,951 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12655, Invalid=37297, Unknown=0, NotChecked=0, Total=49952 [2018-07-23 13:44:02,952 INFO L87 Difference]: Start difference. First operand 336 states and 337 transitions. Second operand 224 states. [2018-07-23 13:44:05,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:44:05,164 INFO L93 Difference]: Finished difference Result 562 states and 564 transitions. [2018-07-23 13:44:05,164 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 224 states. [2018-07-23 13:44:05,164 INFO L78 Accepts]: Start accepts. Automaton has 224 states. Word has length 335 [2018-07-23 13:44:05,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:44:05,165 INFO L225 Difference]: With dead ends: 562 [2018-07-23 13:44:05,165 INFO L226 Difference]: Without dead ends: 337 [2018-07-23 13:44:05,172 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 333 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18205 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=25309, Invalid=86581, Unknown=0, NotChecked=0, Total=111890 [2018-07-23 13:44:05,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2018-07-23 13:44:05,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 337. [2018-07-23 13:44:05,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2018-07-23 13:44:05,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 338 transitions. [2018-07-23 13:44:05,217 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 338 transitions. Word has length 335 [2018-07-23 13:44:05,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:44:05,217 INFO L471 AbstractCegarLoop]: Abstraction has 337 states and 338 transitions. [2018-07-23 13:44:05,217 INFO L472 AbstractCegarLoop]: Interpolant automaton has 224 states. [2018-07-23 13:44:05,217 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 338 transitions. [2018-07-23 13:44:05,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2018-07-23 13:44:05,218 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:44:05,218 INFO L357 BasicCegarLoop]: trace histogram [111, 111, 110, 1, 1, 1, 1] [2018-07-23 13:44:05,218 INFO L414 AbstractCegarLoop]: === Iteration 222 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:44:05,219 INFO L82 PathProgramCache]: Analyzing trace with hash -502689038, now seen corresponding path program 220 times [2018-07-23 13:44:05,219 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:44:05,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:44:05,917 INFO L134 CoverageAnalysis]: Checked inductivity of 18426 backedges. 6216 proven. 12210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:05,917 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:44:05,917 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [114] total 114 [2018-07-23 13:44:05,917 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:44:05,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:05,918 INFO L185 omatonBuilderFactory]: Interpolants [223235#(<= 42 ULTIMATE.start_main_~k~5), 223234#(<= 41 ULTIMATE.start_main_~k~5), 223233#(<= 40 ULTIMATE.start_main_~k~5), 223232#(<= 39 ULTIMATE.start_main_~k~5), 223239#(<= 46 ULTIMATE.start_main_~k~5), 223238#(<= 45 ULTIMATE.start_main_~k~5), 223237#(<= 44 ULTIMATE.start_main_~k~5), 223236#(<= 43 ULTIMATE.start_main_~k~5), 223243#(<= 50 ULTIMATE.start_main_~k~5), 223242#(<= 49 ULTIMATE.start_main_~k~5), 223241#(<= 48 ULTIMATE.start_main_~k~5), 223240#(<= 47 ULTIMATE.start_main_~k~5), 223247#(<= 54 ULTIMATE.start_main_~k~5), 223246#(<= 53 ULTIMATE.start_main_~k~5), 223245#(<= 52 ULTIMATE.start_main_~k~5), 223244#(<= 51 ULTIMATE.start_main_~k~5), 223251#(<= 58 ULTIMATE.start_main_~k~5), 223250#(<= 57 ULTIMATE.start_main_~k~5), 223249#(<= 56 ULTIMATE.start_main_~k~5), 223248#(<= 55 ULTIMATE.start_main_~k~5), 223255#(<= 62 ULTIMATE.start_main_~k~5), 223254#(<= 61 ULTIMATE.start_main_~k~5), 223253#(<= 60 ULTIMATE.start_main_~k~5), 223252#(<= 59 ULTIMATE.start_main_~k~5), 223259#(<= 66 ULTIMATE.start_main_~k~5), 223258#(<= 65 ULTIMATE.start_main_~k~5), 223257#(<= 64 ULTIMATE.start_main_~k~5), 223256#(<= 63 ULTIMATE.start_main_~k~5), 223263#(<= 70 ULTIMATE.start_main_~k~5), 223262#(<= 69 ULTIMATE.start_main_~k~5), 223261#(<= 68 ULTIMATE.start_main_~k~5), 223260#(<= 67 ULTIMATE.start_main_~k~5), 223267#(<= 74 ULTIMATE.start_main_~k~5), 223266#(<= 73 ULTIMATE.start_main_~k~5), 223265#(<= 72 ULTIMATE.start_main_~k~5), 223264#(<= 71 ULTIMATE.start_main_~k~5), 223271#(<= 78 ULTIMATE.start_main_~k~5), 223270#(<= 77 ULTIMATE.start_main_~k~5), 223269#(<= 76 ULTIMATE.start_main_~k~5), 223268#(<= 75 ULTIMATE.start_main_~k~5), 223275#(<= 82 ULTIMATE.start_main_~k~5), 223274#(<= 81 ULTIMATE.start_main_~k~5), 223273#(<= 80 ULTIMATE.start_main_~k~5), 223272#(<= 79 ULTIMATE.start_main_~k~5), 223279#(<= 86 ULTIMATE.start_main_~k~5), 223278#(<= 85 ULTIMATE.start_main_~k~5), 223277#(<= 84 ULTIMATE.start_main_~k~5), 223276#(<= 83 ULTIMATE.start_main_~k~5), 223283#(<= 90 ULTIMATE.start_main_~k~5), 223282#(<= 89 ULTIMATE.start_main_~k~5), 223281#(<= 88 ULTIMATE.start_main_~k~5), 223280#(<= 87 ULTIMATE.start_main_~k~5), 223287#(<= 94 ULTIMATE.start_main_~k~5), 223286#(<= 93 ULTIMATE.start_main_~k~5), 223285#(<= 92 ULTIMATE.start_main_~k~5), 223284#(<= 91 ULTIMATE.start_main_~k~5), 223291#(<= 98 ULTIMATE.start_main_~k~5), 223290#(<= 97 ULTIMATE.start_main_~k~5), 223289#(<= 96 ULTIMATE.start_main_~k~5), 223288#(<= 95 ULTIMATE.start_main_~k~5), 223295#(<= 102 ULTIMATE.start_main_~k~5), 223294#(<= 101 ULTIMATE.start_main_~k~5), 223293#(<= 100 ULTIMATE.start_main_~k~5), 223292#(<= 99 ULTIMATE.start_main_~k~5), 223299#(<= 106 ULTIMATE.start_main_~k~5), 223298#(<= 105 ULTIMATE.start_main_~k~5), 223297#(<= 104 ULTIMATE.start_main_~k~5), 223296#(<= 103 ULTIMATE.start_main_~k~5), 223303#(<= 110 ULTIMATE.start_main_~k~5), 223302#(<= 109 ULTIMATE.start_main_~k~5), 223301#(<= 108 ULTIMATE.start_main_~k~5), 223300#(<= 107 ULTIMATE.start_main_~k~5), 223305#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 223304#(<= 111 ULTIMATE.start_main_~k~5), 223191#true, 223195#(<= 2 ULTIMATE.start_main_~k~5), 223194#(<= 1 ULTIMATE.start_main_~k~5), 223193#(<= 0 ULTIMATE.start_main_~k~5), 223192#false, 223199#(<= 6 ULTIMATE.start_main_~k~5), 223198#(<= 5 ULTIMATE.start_main_~k~5), 223197#(<= 4 ULTIMATE.start_main_~k~5), 223196#(<= 3 ULTIMATE.start_main_~k~5), 223203#(<= 10 ULTIMATE.start_main_~k~5), 223202#(<= 9 ULTIMATE.start_main_~k~5), 223201#(<= 8 ULTIMATE.start_main_~k~5), 223200#(<= 7 ULTIMATE.start_main_~k~5), 223207#(<= 14 ULTIMATE.start_main_~k~5), 223206#(<= 13 ULTIMATE.start_main_~k~5), 223205#(<= 12 ULTIMATE.start_main_~k~5), 223204#(<= 11 ULTIMATE.start_main_~k~5), 223211#(<= 18 ULTIMATE.start_main_~k~5), 223210#(<= 17 ULTIMATE.start_main_~k~5), 223209#(<= 16 ULTIMATE.start_main_~k~5), 223208#(<= 15 ULTIMATE.start_main_~k~5), 223215#(<= 22 ULTIMATE.start_main_~k~5), 223214#(<= 21 ULTIMATE.start_main_~k~5), 223213#(<= 20 ULTIMATE.start_main_~k~5), 223212#(<= 19 ULTIMATE.start_main_~k~5), 223219#(<= 26 ULTIMATE.start_main_~k~5), 223218#(<= 25 ULTIMATE.start_main_~k~5), 223217#(<= 24 ULTIMATE.start_main_~k~5), 223216#(<= 23 ULTIMATE.start_main_~k~5), 223223#(<= 30 ULTIMATE.start_main_~k~5), 223222#(<= 29 ULTIMATE.start_main_~k~5), 223221#(<= 28 ULTIMATE.start_main_~k~5), 223220#(<= 27 ULTIMATE.start_main_~k~5), 223227#(<= 34 ULTIMATE.start_main_~k~5), 223226#(<= 33 ULTIMATE.start_main_~k~5), 223225#(<= 32 ULTIMATE.start_main_~k~5), 223224#(<= 31 ULTIMATE.start_main_~k~5), 223231#(<= 38 ULTIMATE.start_main_~k~5), 223230#(<= 37 ULTIMATE.start_main_~k~5), 223229#(<= 36 ULTIMATE.start_main_~k~5), 223228#(<= 35 ULTIMATE.start_main_~k~5)] [2018-07-23 13:44:05,919 INFO L134 CoverageAnalysis]: Checked inductivity of 18426 backedges. 6216 proven. 12210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:05,919 INFO L450 AbstractCegarLoop]: Interpolant automaton has 115 states [2018-07-23 13:44:05,919 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 115 interpolants. [2018-07-23 13:44:05,920 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6443, Invalid=6667, Unknown=0, NotChecked=0, Total=13110 [2018-07-23 13:44:05,920 INFO L87 Difference]: Start difference. First operand 337 states and 338 transitions. Second operand 115 states. [2018-07-23 13:44:06,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:44:06,437 INFO L93 Difference]: Finished difference Result 345 states and 346 transitions. [2018-07-23 13:44:06,437 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 226 states. [2018-07-23 13:44:06,437 INFO L78 Accepts]: Start accepts. Automaton has 115 states. Word has length 336 [2018-07-23 13:44:06,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:44:06,438 INFO L225 Difference]: With dead ends: 345 [2018-07-23 13:44:06,438 INFO L226 Difference]: Without dead ends: 343 [2018-07-23 13:44:06,440 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 225 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12432 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=19323, Invalid=31979, Unknown=0, NotChecked=0, Total=51302 [2018-07-23 13:44:06,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2018-07-23 13:44:06,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 339. [2018-07-23 13:44:06,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 339 states. [2018-07-23 13:44:06,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 340 transitions. [2018-07-23 13:44:06,485 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 340 transitions. Word has length 336 [2018-07-23 13:44:06,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:44:06,486 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 340 transitions. [2018-07-23 13:44:06,486 INFO L472 AbstractCegarLoop]: Interpolant automaton has 115 states. [2018-07-23 13:44:06,486 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 340 transitions. [2018-07-23 13:44:06,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2018-07-23 13:44:06,522 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:44:06,522 INFO L357 BasicCegarLoop]: trace histogram [112, 111, 111, 1, 1, 1, 1] [2018-07-23 13:44:06,522 INFO L414 AbstractCegarLoop]: === Iteration 223 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:44:06,525 INFO L82 PathProgramCache]: Analyzing trace with hash -2047762342, now seen corresponding path program 221 times [2018-07-23 13:44:06,525 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:44:06,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:44:07,697 INFO L134 CoverageAnalysis]: Checked inductivity of 18648 backedges. 12432 proven. 6216 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:07,697 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:44:07,697 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [225] total 225 [2018-07-23 13:44:07,697 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:44:07,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:07,698 INFO L185 omatonBuilderFactory]: Interpolants [224899#false, 224898#true, 224903#(<= ULTIMATE.start_main_~i~5 3), 224902#(<= ULTIMATE.start_main_~i~5 2), 224901#(<= ULTIMATE.start_main_~i~5 1), 224900#(<= ULTIMATE.start_main_~i~5 0), 224907#(<= ULTIMATE.start_main_~i~5 7), 224906#(<= ULTIMATE.start_main_~i~5 6), 224905#(<= ULTIMATE.start_main_~i~5 5), 224904#(<= ULTIMATE.start_main_~i~5 4), 224911#(<= ULTIMATE.start_main_~i~5 11), 224910#(<= ULTIMATE.start_main_~i~5 10), 224909#(<= ULTIMATE.start_main_~i~5 9), 224908#(<= ULTIMATE.start_main_~i~5 8), 224915#(<= ULTIMATE.start_main_~i~5 15), 224914#(<= ULTIMATE.start_main_~i~5 14), 224913#(<= ULTIMATE.start_main_~i~5 13), 224912#(<= ULTIMATE.start_main_~i~5 12), 224919#(<= ULTIMATE.start_main_~i~5 19), 224918#(<= ULTIMATE.start_main_~i~5 18), 224917#(<= ULTIMATE.start_main_~i~5 17), 224916#(<= ULTIMATE.start_main_~i~5 16), 224923#(<= ULTIMATE.start_main_~i~5 23), 224922#(<= ULTIMATE.start_main_~i~5 22), 224921#(<= ULTIMATE.start_main_~i~5 21), 224920#(<= ULTIMATE.start_main_~i~5 20), 224927#(<= ULTIMATE.start_main_~i~5 27), 224926#(<= ULTIMATE.start_main_~i~5 26), 224925#(<= ULTIMATE.start_main_~i~5 25), 224924#(<= ULTIMATE.start_main_~i~5 24), 224931#(<= ULTIMATE.start_main_~i~5 31), 224930#(<= ULTIMATE.start_main_~i~5 30), 224929#(<= ULTIMATE.start_main_~i~5 29), 224928#(<= ULTIMATE.start_main_~i~5 28), 224935#(<= ULTIMATE.start_main_~i~5 35), 224934#(<= ULTIMATE.start_main_~i~5 34), 224933#(<= ULTIMATE.start_main_~i~5 33), 224932#(<= ULTIMATE.start_main_~i~5 32), 224939#(<= ULTIMATE.start_main_~i~5 39), 224938#(<= ULTIMATE.start_main_~i~5 38), 224937#(<= ULTIMATE.start_main_~i~5 37), 224936#(<= ULTIMATE.start_main_~i~5 36), 224943#(<= ULTIMATE.start_main_~i~5 43), 224942#(<= ULTIMATE.start_main_~i~5 42), 224941#(<= ULTIMATE.start_main_~i~5 41), 224940#(<= ULTIMATE.start_main_~i~5 40), 224947#(<= ULTIMATE.start_main_~i~5 47), 224946#(<= ULTIMATE.start_main_~i~5 46), 224945#(<= ULTIMATE.start_main_~i~5 45), 224944#(<= ULTIMATE.start_main_~i~5 44), 224951#(<= ULTIMATE.start_main_~i~5 51), 224950#(<= ULTIMATE.start_main_~i~5 50), 224949#(<= ULTIMATE.start_main_~i~5 49), 224948#(<= ULTIMATE.start_main_~i~5 48), 224955#(<= ULTIMATE.start_main_~i~5 55), 224954#(<= ULTIMATE.start_main_~i~5 54), 224953#(<= ULTIMATE.start_main_~i~5 53), 224952#(<= ULTIMATE.start_main_~i~5 52), 224959#(<= ULTIMATE.start_main_~i~5 59), 224958#(<= ULTIMATE.start_main_~i~5 58), 224957#(<= ULTIMATE.start_main_~i~5 57), 224956#(<= ULTIMATE.start_main_~i~5 56), 224963#(<= ULTIMATE.start_main_~i~5 63), 224962#(<= ULTIMATE.start_main_~i~5 62), 224961#(<= ULTIMATE.start_main_~i~5 61), 224960#(<= ULTIMATE.start_main_~i~5 60), 224967#(<= ULTIMATE.start_main_~i~5 67), 224966#(<= ULTIMATE.start_main_~i~5 66), 224965#(<= ULTIMATE.start_main_~i~5 65), 224964#(<= ULTIMATE.start_main_~i~5 64), 224971#(<= ULTIMATE.start_main_~i~5 71), 224970#(<= ULTIMATE.start_main_~i~5 70), 224969#(<= ULTIMATE.start_main_~i~5 69), 224968#(<= ULTIMATE.start_main_~i~5 68), 224975#(<= ULTIMATE.start_main_~i~5 75), 224974#(<= ULTIMATE.start_main_~i~5 74), 224973#(<= ULTIMATE.start_main_~i~5 73), 224972#(<= ULTIMATE.start_main_~i~5 72), 224979#(<= ULTIMATE.start_main_~i~5 79), 224978#(<= ULTIMATE.start_main_~i~5 78), 224977#(<= ULTIMATE.start_main_~i~5 77), 224976#(<= ULTIMATE.start_main_~i~5 76), 224983#(<= ULTIMATE.start_main_~i~5 83), 224982#(<= ULTIMATE.start_main_~i~5 82), 224981#(<= ULTIMATE.start_main_~i~5 81), 224980#(<= ULTIMATE.start_main_~i~5 80), 224987#(<= ULTIMATE.start_main_~i~5 87), 224986#(<= ULTIMATE.start_main_~i~5 86), 224985#(<= ULTIMATE.start_main_~i~5 85), 224984#(<= ULTIMATE.start_main_~i~5 84), 224991#(<= ULTIMATE.start_main_~i~5 91), 224990#(<= ULTIMATE.start_main_~i~5 90), 224989#(<= ULTIMATE.start_main_~i~5 89), 224988#(<= ULTIMATE.start_main_~i~5 88), 224995#(<= ULTIMATE.start_main_~i~5 95), 224994#(<= ULTIMATE.start_main_~i~5 94), 224993#(<= ULTIMATE.start_main_~i~5 93), 224992#(<= ULTIMATE.start_main_~i~5 92), 224999#(<= ULTIMATE.start_main_~i~5 99), 224998#(<= ULTIMATE.start_main_~i~5 98), 224997#(<= ULTIMATE.start_main_~i~5 97), 224996#(<= ULTIMATE.start_main_~i~5 96), 225003#(<= ULTIMATE.start_main_~i~5 103), 225002#(<= ULTIMATE.start_main_~i~5 102), 225001#(<= ULTIMATE.start_main_~i~5 101), 225000#(<= ULTIMATE.start_main_~i~5 100), 225007#(<= ULTIMATE.start_main_~i~5 107), 225006#(<= ULTIMATE.start_main_~i~5 106), 225005#(<= ULTIMATE.start_main_~i~5 105), 225004#(<= ULTIMATE.start_main_~i~5 104), 225011#(<= ULTIMATE.start_main_~i~5 111), 225010#(<= ULTIMATE.start_main_~i~5 110), 225009#(<= ULTIMATE.start_main_~i~5 109), 225008#(<= ULTIMATE.start_main_~i~5 108), 225015#(<= ULTIMATE.start_main_~j~5 108), 225014#(<= ULTIMATE.start_main_~j~5 109), 225013#(<= ULTIMATE.start_main_~j~5 110), 225012#(<= ULTIMATE.start_main_~j~5 111), 225019#(<= ULTIMATE.start_main_~j~5 104), 225018#(<= ULTIMATE.start_main_~j~5 105), 225017#(<= ULTIMATE.start_main_~j~5 106), 225016#(<= ULTIMATE.start_main_~j~5 107), 225023#(<= ULTIMATE.start_main_~j~5 100), 225022#(<= ULTIMATE.start_main_~j~5 101), 225021#(<= ULTIMATE.start_main_~j~5 102), 225020#(<= ULTIMATE.start_main_~j~5 103), 225027#(<= ULTIMATE.start_main_~j~5 96), 225026#(<= ULTIMATE.start_main_~j~5 97), 225025#(<= ULTIMATE.start_main_~j~5 98), 225024#(<= ULTIMATE.start_main_~j~5 99), 225031#(<= ULTIMATE.start_main_~j~5 92), 225030#(<= ULTIMATE.start_main_~j~5 93), 225029#(<= ULTIMATE.start_main_~j~5 94), 225028#(<= ULTIMATE.start_main_~j~5 95), 225035#(<= ULTIMATE.start_main_~j~5 88), 225034#(<= ULTIMATE.start_main_~j~5 89), 225033#(<= ULTIMATE.start_main_~j~5 90), 225032#(<= ULTIMATE.start_main_~j~5 91), 225039#(<= ULTIMATE.start_main_~j~5 84), 225038#(<= ULTIMATE.start_main_~j~5 85), 225037#(<= ULTIMATE.start_main_~j~5 86), 225036#(<= ULTIMATE.start_main_~j~5 87), 225043#(<= ULTIMATE.start_main_~j~5 80), 225042#(<= ULTIMATE.start_main_~j~5 81), 225041#(<= ULTIMATE.start_main_~j~5 82), 225040#(<= ULTIMATE.start_main_~j~5 83), 225047#(<= ULTIMATE.start_main_~j~5 76), 225046#(<= ULTIMATE.start_main_~j~5 77), 225045#(<= ULTIMATE.start_main_~j~5 78), 225044#(<= ULTIMATE.start_main_~j~5 79), 225051#(<= ULTIMATE.start_main_~j~5 72), 225050#(<= ULTIMATE.start_main_~j~5 73), 225049#(<= ULTIMATE.start_main_~j~5 74), 225048#(<= ULTIMATE.start_main_~j~5 75), 225055#(<= ULTIMATE.start_main_~j~5 68), 225054#(<= ULTIMATE.start_main_~j~5 69), 225053#(<= ULTIMATE.start_main_~j~5 70), 225052#(<= ULTIMATE.start_main_~j~5 71), 225059#(<= ULTIMATE.start_main_~j~5 64), 225058#(<= ULTIMATE.start_main_~j~5 65), 225057#(<= ULTIMATE.start_main_~j~5 66), 225056#(<= ULTIMATE.start_main_~j~5 67), 225063#(<= ULTIMATE.start_main_~j~5 60), 225062#(<= ULTIMATE.start_main_~j~5 61), 225061#(<= ULTIMATE.start_main_~j~5 62), 225060#(<= ULTIMATE.start_main_~j~5 63), 225067#(<= ULTIMATE.start_main_~j~5 56), 225066#(<= ULTIMATE.start_main_~j~5 57), 225065#(<= ULTIMATE.start_main_~j~5 58), 225064#(<= ULTIMATE.start_main_~j~5 59), 225071#(<= ULTIMATE.start_main_~j~5 52), 225070#(<= ULTIMATE.start_main_~j~5 53), 225069#(<= ULTIMATE.start_main_~j~5 54), 225068#(<= ULTIMATE.start_main_~j~5 55), 225075#(<= ULTIMATE.start_main_~j~5 48), 225074#(<= ULTIMATE.start_main_~j~5 49), 225073#(<= ULTIMATE.start_main_~j~5 50), 225072#(<= ULTIMATE.start_main_~j~5 51), 225079#(<= ULTIMATE.start_main_~j~5 44), 225078#(<= ULTIMATE.start_main_~j~5 45), 225077#(<= ULTIMATE.start_main_~j~5 46), 225076#(<= ULTIMATE.start_main_~j~5 47), 225083#(<= ULTIMATE.start_main_~j~5 40), 225082#(<= ULTIMATE.start_main_~j~5 41), 225081#(<= ULTIMATE.start_main_~j~5 42), 225080#(<= ULTIMATE.start_main_~j~5 43), 225087#(<= ULTIMATE.start_main_~j~5 36), 225086#(<= ULTIMATE.start_main_~j~5 37), 225085#(<= ULTIMATE.start_main_~j~5 38), 225084#(<= ULTIMATE.start_main_~j~5 39), 225091#(<= ULTIMATE.start_main_~j~5 32), 225090#(<= ULTIMATE.start_main_~j~5 33), 225089#(<= ULTIMATE.start_main_~j~5 34), 225088#(<= ULTIMATE.start_main_~j~5 35), 225095#(<= ULTIMATE.start_main_~j~5 28), 225094#(<= ULTIMATE.start_main_~j~5 29), 225093#(<= ULTIMATE.start_main_~j~5 30), 225092#(<= ULTIMATE.start_main_~j~5 31), 225099#(<= ULTIMATE.start_main_~j~5 24), 225098#(<= ULTIMATE.start_main_~j~5 25), 225097#(<= ULTIMATE.start_main_~j~5 26), 225096#(<= ULTIMATE.start_main_~j~5 27), 225103#(<= ULTIMATE.start_main_~j~5 20), 225102#(<= ULTIMATE.start_main_~j~5 21), 225101#(<= ULTIMATE.start_main_~j~5 22), 225100#(<= ULTIMATE.start_main_~j~5 23), 225107#(<= ULTIMATE.start_main_~j~5 16), 225106#(<= ULTIMATE.start_main_~j~5 17), 225105#(<= ULTIMATE.start_main_~j~5 18), 225104#(<= ULTIMATE.start_main_~j~5 19), 225111#(<= ULTIMATE.start_main_~j~5 12), 225110#(<= ULTIMATE.start_main_~j~5 13), 225109#(<= ULTIMATE.start_main_~j~5 14), 225108#(<= ULTIMATE.start_main_~j~5 15), 225115#(<= ULTIMATE.start_main_~j~5 8), 225114#(<= ULTIMATE.start_main_~j~5 9), 225113#(<= ULTIMATE.start_main_~j~5 10), 225112#(<= ULTIMATE.start_main_~j~5 11), 225119#(<= ULTIMATE.start_main_~j~5 4), 225118#(<= ULTIMATE.start_main_~j~5 5), 225117#(<= ULTIMATE.start_main_~j~5 6), 225116#(<= ULTIMATE.start_main_~j~5 7), 225123#(<= ULTIMATE.start_main_~j~5 0), 225122#(<= ULTIMATE.start_main_~j~5 1), 225121#(<= ULTIMATE.start_main_~j~5 2), 225120#(<= ULTIMATE.start_main_~j~5 3)] [2018-07-23 13:44:07,699 INFO L134 CoverageAnalysis]: Checked inductivity of 18648 backedges. 12432 proven. 6216 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:07,699 INFO L450 AbstractCegarLoop]: Interpolant automaton has 226 states [2018-07-23 13:44:07,700 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 226 interpolants. [2018-07-23 13:44:07,702 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12881, Invalid=37969, Unknown=0, NotChecked=0, Total=50850 [2018-07-23 13:44:07,703 INFO L87 Difference]: Start difference. First operand 339 states and 340 transitions. Second operand 226 states. [2018-07-23 13:44:10,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:44:10,042 INFO L93 Difference]: Finished difference Result 567 states and 569 transitions. [2018-07-23 13:44:10,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 226 states. [2018-07-23 13:44:10,042 INFO L78 Accepts]: Start accepts. Automaton has 226 states. Word has length 338 [2018-07-23 13:44:10,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:44:10,043 INFO L225 Difference]: With dead ends: 567 [2018-07-23 13:44:10,043 INFO L226 Difference]: Without dead ends: 340 [2018-07-23 13:44:10,050 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 336 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18537 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=25761, Invalid=88145, Unknown=0, NotChecked=0, Total=113906 [2018-07-23 13:44:10,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2018-07-23 13:44:10,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2018-07-23 13:44:10,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2018-07-23 13:44:10,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 341 transitions. [2018-07-23 13:44:10,097 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 341 transitions. Word has length 338 [2018-07-23 13:44:10,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:44:10,097 INFO L471 AbstractCegarLoop]: Abstraction has 340 states and 341 transitions. [2018-07-23 13:44:10,097 INFO L472 AbstractCegarLoop]: Interpolant automaton has 226 states. [2018-07-23 13:44:10,097 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 341 transitions. [2018-07-23 13:44:10,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2018-07-23 13:44:10,098 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:44:10,098 INFO L357 BasicCegarLoop]: trace histogram [112, 112, 111, 1, 1, 1, 1] [2018-07-23 13:44:10,098 INFO L414 AbstractCegarLoop]: === Iteration 224 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:44:10,099 INFO L82 PathProgramCache]: Analyzing trace with hash -753723501, now seen corresponding path program 222 times [2018-07-23 13:44:10,099 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:44:10,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:44:10,947 INFO L134 CoverageAnalysis]: Checked inductivity of 18760 backedges. 6328 proven. 12432 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:10,947 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:44:10,947 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [115] total 115 [2018-07-23 13:44:10,947 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:44:10,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:10,948 INFO L185 omatonBuilderFactory]: Interpolants [227163#false, 227162#true, 227167#(<= 3 ULTIMATE.start_main_~k~5), 227166#(<= 2 ULTIMATE.start_main_~k~5), 227165#(<= 1 ULTIMATE.start_main_~k~5), 227164#(<= 0 ULTIMATE.start_main_~k~5), 227171#(<= 7 ULTIMATE.start_main_~k~5), 227170#(<= 6 ULTIMATE.start_main_~k~5), 227169#(<= 5 ULTIMATE.start_main_~k~5), 227168#(<= 4 ULTIMATE.start_main_~k~5), 227175#(<= 11 ULTIMATE.start_main_~k~5), 227174#(<= 10 ULTIMATE.start_main_~k~5), 227173#(<= 9 ULTIMATE.start_main_~k~5), 227172#(<= 8 ULTIMATE.start_main_~k~5), 227179#(<= 15 ULTIMATE.start_main_~k~5), 227178#(<= 14 ULTIMATE.start_main_~k~5), 227177#(<= 13 ULTIMATE.start_main_~k~5), 227176#(<= 12 ULTIMATE.start_main_~k~5), 227183#(<= 19 ULTIMATE.start_main_~k~5), 227182#(<= 18 ULTIMATE.start_main_~k~5), 227181#(<= 17 ULTIMATE.start_main_~k~5), 227180#(<= 16 ULTIMATE.start_main_~k~5), 227187#(<= 23 ULTIMATE.start_main_~k~5), 227186#(<= 22 ULTIMATE.start_main_~k~5), 227185#(<= 21 ULTIMATE.start_main_~k~5), 227184#(<= 20 ULTIMATE.start_main_~k~5), 227191#(<= 27 ULTIMATE.start_main_~k~5), 227190#(<= 26 ULTIMATE.start_main_~k~5), 227189#(<= 25 ULTIMATE.start_main_~k~5), 227188#(<= 24 ULTIMATE.start_main_~k~5), 227195#(<= 31 ULTIMATE.start_main_~k~5), 227194#(<= 30 ULTIMATE.start_main_~k~5), 227193#(<= 29 ULTIMATE.start_main_~k~5), 227192#(<= 28 ULTIMATE.start_main_~k~5), 227199#(<= 35 ULTIMATE.start_main_~k~5), 227198#(<= 34 ULTIMATE.start_main_~k~5), 227197#(<= 33 ULTIMATE.start_main_~k~5), 227196#(<= 32 ULTIMATE.start_main_~k~5), 227203#(<= 39 ULTIMATE.start_main_~k~5), 227202#(<= 38 ULTIMATE.start_main_~k~5), 227201#(<= 37 ULTIMATE.start_main_~k~5), 227200#(<= 36 ULTIMATE.start_main_~k~5), 227207#(<= 43 ULTIMATE.start_main_~k~5), 227206#(<= 42 ULTIMATE.start_main_~k~5), 227205#(<= 41 ULTIMATE.start_main_~k~5), 227204#(<= 40 ULTIMATE.start_main_~k~5), 227211#(<= 47 ULTIMATE.start_main_~k~5), 227210#(<= 46 ULTIMATE.start_main_~k~5), 227209#(<= 45 ULTIMATE.start_main_~k~5), 227208#(<= 44 ULTIMATE.start_main_~k~5), 227215#(<= 51 ULTIMATE.start_main_~k~5), 227214#(<= 50 ULTIMATE.start_main_~k~5), 227213#(<= 49 ULTIMATE.start_main_~k~5), 227212#(<= 48 ULTIMATE.start_main_~k~5), 227219#(<= 55 ULTIMATE.start_main_~k~5), 227218#(<= 54 ULTIMATE.start_main_~k~5), 227217#(<= 53 ULTIMATE.start_main_~k~5), 227216#(<= 52 ULTIMATE.start_main_~k~5), 227223#(<= 59 ULTIMATE.start_main_~k~5), 227222#(<= 58 ULTIMATE.start_main_~k~5), 227221#(<= 57 ULTIMATE.start_main_~k~5), 227220#(<= 56 ULTIMATE.start_main_~k~5), 227227#(<= 63 ULTIMATE.start_main_~k~5), 227226#(<= 62 ULTIMATE.start_main_~k~5), 227225#(<= 61 ULTIMATE.start_main_~k~5), 227224#(<= 60 ULTIMATE.start_main_~k~5), 227231#(<= 67 ULTIMATE.start_main_~k~5), 227230#(<= 66 ULTIMATE.start_main_~k~5), 227229#(<= 65 ULTIMATE.start_main_~k~5), 227228#(<= 64 ULTIMATE.start_main_~k~5), 227235#(<= 71 ULTIMATE.start_main_~k~5), 227234#(<= 70 ULTIMATE.start_main_~k~5), 227233#(<= 69 ULTIMATE.start_main_~k~5), 227232#(<= 68 ULTIMATE.start_main_~k~5), 227239#(<= 75 ULTIMATE.start_main_~k~5), 227238#(<= 74 ULTIMATE.start_main_~k~5), 227237#(<= 73 ULTIMATE.start_main_~k~5), 227236#(<= 72 ULTIMATE.start_main_~k~5), 227243#(<= 79 ULTIMATE.start_main_~k~5), 227242#(<= 78 ULTIMATE.start_main_~k~5), 227241#(<= 77 ULTIMATE.start_main_~k~5), 227240#(<= 76 ULTIMATE.start_main_~k~5), 227247#(<= 83 ULTIMATE.start_main_~k~5), 227246#(<= 82 ULTIMATE.start_main_~k~5), 227245#(<= 81 ULTIMATE.start_main_~k~5), 227244#(<= 80 ULTIMATE.start_main_~k~5), 227251#(<= 87 ULTIMATE.start_main_~k~5), 227250#(<= 86 ULTIMATE.start_main_~k~5), 227249#(<= 85 ULTIMATE.start_main_~k~5), 227248#(<= 84 ULTIMATE.start_main_~k~5), 227255#(<= 91 ULTIMATE.start_main_~k~5), 227254#(<= 90 ULTIMATE.start_main_~k~5), 227253#(<= 89 ULTIMATE.start_main_~k~5), 227252#(<= 88 ULTIMATE.start_main_~k~5), 227259#(<= 95 ULTIMATE.start_main_~k~5), 227258#(<= 94 ULTIMATE.start_main_~k~5), 227257#(<= 93 ULTIMATE.start_main_~k~5), 227256#(<= 92 ULTIMATE.start_main_~k~5), 227263#(<= 99 ULTIMATE.start_main_~k~5), 227262#(<= 98 ULTIMATE.start_main_~k~5), 227261#(<= 97 ULTIMATE.start_main_~k~5), 227260#(<= 96 ULTIMATE.start_main_~k~5), 227267#(<= 103 ULTIMATE.start_main_~k~5), 227266#(<= 102 ULTIMATE.start_main_~k~5), 227265#(<= 101 ULTIMATE.start_main_~k~5), 227264#(<= 100 ULTIMATE.start_main_~k~5), 227271#(<= 107 ULTIMATE.start_main_~k~5), 227270#(<= 106 ULTIMATE.start_main_~k~5), 227269#(<= 105 ULTIMATE.start_main_~k~5), 227268#(<= 104 ULTIMATE.start_main_~k~5), 227275#(<= 111 ULTIMATE.start_main_~k~5), 227274#(<= 110 ULTIMATE.start_main_~k~5), 227273#(<= 109 ULTIMATE.start_main_~k~5), 227272#(<= 108 ULTIMATE.start_main_~k~5), 227277#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 227276#(<= 112 ULTIMATE.start_main_~k~5)] [2018-07-23 13:44:10,949 INFO L134 CoverageAnalysis]: Checked inductivity of 18760 backedges. 6328 proven. 12432 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:10,949 INFO L450 AbstractCegarLoop]: Interpolant automaton has 116 states [2018-07-23 13:44:10,949 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 116 interpolants. [2018-07-23 13:44:10,950 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6557, Invalid=6783, Unknown=0, NotChecked=0, Total=13340 [2018-07-23 13:44:10,950 INFO L87 Difference]: Start difference. First operand 340 states and 341 transitions. Second operand 116 states. [2018-07-23 13:44:11,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:44:11,446 INFO L93 Difference]: Finished difference Result 348 states and 349 transitions. [2018-07-23 13:44:11,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 228 states. [2018-07-23 13:44:11,446 INFO L78 Accepts]: Start accepts. Automaton has 116 states. Word has length 339 [2018-07-23 13:44:11,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:44:11,447 INFO L225 Difference]: With dead ends: 348 [2018-07-23 13:44:11,447 INFO L226 Difference]: Without dead ends: 346 [2018-07-23 13:44:11,449 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 227 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12656 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=19665, Invalid=32547, Unknown=0, NotChecked=0, Total=52212 [2018-07-23 13:44:11,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2018-07-23 13:44:11,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 342. [2018-07-23 13:44:11,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 342 states. [2018-07-23 13:44:11,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 343 transitions. [2018-07-23 13:44:11,496 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 343 transitions. Word has length 339 [2018-07-23 13:44:11,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:44:11,497 INFO L471 AbstractCegarLoop]: Abstraction has 342 states and 343 transitions. [2018-07-23 13:44:11,497 INFO L472 AbstractCegarLoop]: Interpolant automaton has 116 states. [2018-07-23 13:44:11,497 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 343 transitions. [2018-07-23 13:44:11,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2018-07-23 13:44:11,498 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:44:11,498 INFO L357 BasicCegarLoop]: trace histogram [113, 112, 112, 1, 1, 1, 1] [2018-07-23 13:44:11,498 INFO L414 AbstractCegarLoop]: === Iteration 225 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:44:11,498 INFO L82 PathProgramCache]: Analyzing trace with hash 1521254587, now seen corresponding path program 223 times [2018-07-23 13:44:11,498 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:44:11,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:44:12,628 INFO L134 CoverageAnalysis]: Checked inductivity of 18984 backedges. 12656 proven. 6328 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:12,628 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:44:12,628 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [227] total 227 [2018-07-23 13:44:12,628 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:44:12,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:12,629 INFO L185 omatonBuilderFactory]: Interpolants [228887#(<= ULTIMATE.start_main_~i~5 1), 228886#(<= ULTIMATE.start_main_~i~5 0), 228885#false, 228884#true, 228891#(<= ULTIMATE.start_main_~i~5 5), 228890#(<= ULTIMATE.start_main_~i~5 4), 228889#(<= ULTIMATE.start_main_~i~5 3), 228888#(<= ULTIMATE.start_main_~i~5 2), 228895#(<= ULTIMATE.start_main_~i~5 9), 228894#(<= ULTIMATE.start_main_~i~5 8), 228893#(<= ULTIMATE.start_main_~i~5 7), 228892#(<= ULTIMATE.start_main_~i~5 6), 228899#(<= ULTIMATE.start_main_~i~5 13), 228898#(<= ULTIMATE.start_main_~i~5 12), 228897#(<= ULTIMATE.start_main_~i~5 11), 228896#(<= ULTIMATE.start_main_~i~5 10), 228903#(<= ULTIMATE.start_main_~i~5 17), 228902#(<= ULTIMATE.start_main_~i~5 16), 228901#(<= ULTIMATE.start_main_~i~5 15), 228900#(<= ULTIMATE.start_main_~i~5 14), 228907#(<= ULTIMATE.start_main_~i~5 21), 228906#(<= ULTIMATE.start_main_~i~5 20), 228905#(<= ULTIMATE.start_main_~i~5 19), 228904#(<= ULTIMATE.start_main_~i~5 18), 228911#(<= ULTIMATE.start_main_~i~5 25), 228910#(<= ULTIMATE.start_main_~i~5 24), 228909#(<= ULTIMATE.start_main_~i~5 23), 228908#(<= ULTIMATE.start_main_~i~5 22), 228915#(<= ULTIMATE.start_main_~i~5 29), 228914#(<= ULTIMATE.start_main_~i~5 28), 228913#(<= ULTIMATE.start_main_~i~5 27), 228912#(<= ULTIMATE.start_main_~i~5 26), 228919#(<= ULTIMATE.start_main_~i~5 33), 228918#(<= ULTIMATE.start_main_~i~5 32), 228917#(<= ULTIMATE.start_main_~i~5 31), 228916#(<= ULTIMATE.start_main_~i~5 30), 228923#(<= ULTIMATE.start_main_~i~5 37), 228922#(<= ULTIMATE.start_main_~i~5 36), 228921#(<= ULTIMATE.start_main_~i~5 35), 228920#(<= ULTIMATE.start_main_~i~5 34), 228927#(<= ULTIMATE.start_main_~i~5 41), 228926#(<= ULTIMATE.start_main_~i~5 40), 228925#(<= ULTIMATE.start_main_~i~5 39), 228924#(<= ULTIMATE.start_main_~i~5 38), 228931#(<= ULTIMATE.start_main_~i~5 45), 228930#(<= ULTIMATE.start_main_~i~5 44), 228929#(<= ULTIMATE.start_main_~i~5 43), 228928#(<= ULTIMATE.start_main_~i~5 42), 228935#(<= ULTIMATE.start_main_~i~5 49), 228934#(<= ULTIMATE.start_main_~i~5 48), 228933#(<= ULTIMATE.start_main_~i~5 47), 228932#(<= ULTIMATE.start_main_~i~5 46), 228939#(<= ULTIMATE.start_main_~i~5 53), 228938#(<= ULTIMATE.start_main_~i~5 52), 228937#(<= ULTIMATE.start_main_~i~5 51), 228936#(<= ULTIMATE.start_main_~i~5 50), 228943#(<= ULTIMATE.start_main_~i~5 57), 228942#(<= ULTIMATE.start_main_~i~5 56), 228941#(<= ULTIMATE.start_main_~i~5 55), 228940#(<= ULTIMATE.start_main_~i~5 54), 228947#(<= ULTIMATE.start_main_~i~5 61), 228946#(<= ULTIMATE.start_main_~i~5 60), 228945#(<= ULTIMATE.start_main_~i~5 59), 228944#(<= ULTIMATE.start_main_~i~5 58), 228951#(<= ULTIMATE.start_main_~i~5 65), 228950#(<= ULTIMATE.start_main_~i~5 64), 228949#(<= ULTIMATE.start_main_~i~5 63), 228948#(<= ULTIMATE.start_main_~i~5 62), 228955#(<= ULTIMATE.start_main_~i~5 69), 228954#(<= ULTIMATE.start_main_~i~5 68), 228953#(<= ULTIMATE.start_main_~i~5 67), 228952#(<= ULTIMATE.start_main_~i~5 66), 228959#(<= ULTIMATE.start_main_~i~5 73), 228958#(<= ULTIMATE.start_main_~i~5 72), 228957#(<= ULTIMATE.start_main_~i~5 71), 228956#(<= ULTIMATE.start_main_~i~5 70), 228963#(<= ULTIMATE.start_main_~i~5 77), 228962#(<= ULTIMATE.start_main_~i~5 76), 228961#(<= ULTIMATE.start_main_~i~5 75), 228960#(<= ULTIMATE.start_main_~i~5 74), 228967#(<= ULTIMATE.start_main_~i~5 81), 228966#(<= ULTIMATE.start_main_~i~5 80), 228965#(<= ULTIMATE.start_main_~i~5 79), 228964#(<= ULTIMATE.start_main_~i~5 78), 228971#(<= ULTIMATE.start_main_~i~5 85), 228970#(<= ULTIMATE.start_main_~i~5 84), 228969#(<= ULTIMATE.start_main_~i~5 83), 228968#(<= ULTIMATE.start_main_~i~5 82), 228975#(<= ULTIMATE.start_main_~i~5 89), 228974#(<= ULTIMATE.start_main_~i~5 88), 228973#(<= ULTIMATE.start_main_~i~5 87), 228972#(<= ULTIMATE.start_main_~i~5 86), 228979#(<= ULTIMATE.start_main_~i~5 93), 228978#(<= ULTIMATE.start_main_~i~5 92), 228977#(<= ULTIMATE.start_main_~i~5 91), 228976#(<= ULTIMATE.start_main_~i~5 90), 228983#(<= ULTIMATE.start_main_~i~5 97), 228982#(<= ULTIMATE.start_main_~i~5 96), 228981#(<= ULTIMATE.start_main_~i~5 95), 228980#(<= ULTIMATE.start_main_~i~5 94), 228987#(<= ULTIMATE.start_main_~i~5 101), 228986#(<= ULTIMATE.start_main_~i~5 100), 228985#(<= ULTIMATE.start_main_~i~5 99), 228984#(<= ULTIMATE.start_main_~i~5 98), 228991#(<= ULTIMATE.start_main_~i~5 105), 228990#(<= ULTIMATE.start_main_~i~5 104), 228989#(<= ULTIMATE.start_main_~i~5 103), 228988#(<= ULTIMATE.start_main_~i~5 102), 228995#(<= ULTIMATE.start_main_~i~5 109), 228994#(<= ULTIMATE.start_main_~i~5 108), 228993#(<= ULTIMATE.start_main_~i~5 107), 228992#(<= ULTIMATE.start_main_~i~5 106), 228999#(<= ULTIMATE.start_main_~j~5 112), 228998#(<= ULTIMATE.start_main_~i~5 112), 228997#(<= ULTIMATE.start_main_~i~5 111), 228996#(<= ULTIMATE.start_main_~i~5 110), 229003#(<= ULTIMATE.start_main_~j~5 108), 229002#(<= ULTIMATE.start_main_~j~5 109), 229001#(<= ULTIMATE.start_main_~j~5 110), 229000#(<= ULTIMATE.start_main_~j~5 111), 229007#(<= ULTIMATE.start_main_~j~5 104), 229006#(<= ULTIMATE.start_main_~j~5 105), 229005#(<= ULTIMATE.start_main_~j~5 106), 229004#(<= ULTIMATE.start_main_~j~5 107), 229011#(<= ULTIMATE.start_main_~j~5 100), 229010#(<= ULTIMATE.start_main_~j~5 101), 229009#(<= ULTIMATE.start_main_~j~5 102), 229008#(<= ULTIMATE.start_main_~j~5 103), 229015#(<= ULTIMATE.start_main_~j~5 96), 229014#(<= ULTIMATE.start_main_~j~5 97), 229013#(<= ULTIMATE.start_main_~j~5 98), 229012#(<= ULTIMATE.start_main_~j~5 99), 229019#(<= ULTIMATE.start_main_~j~5 92), 229018#(<= ULTIMATE.start_main_~j~5 93), 229017#(<= ULTIMATE.start_main_~j~5 94), 229016#(<= ULTIMATE.start_main_~j~5 95), 229023#(<= ULTIMATE.start_main_~j~5 88), 229022#(<= ULTIMATE.start_main_~j~5 89), 229021#(<= ULTIMATE.start_main_~j~5 90), 229020#(<= ULTIMATE.start_main_~j~5 91), 229027#(<= ULTIMATE.start_main_~j~5 84), 229026#(<= ULTIMATE.start_main_~j~5 85), 229025#(<= ULTIMATE.start_main_~j~5 86), 229024#(<= ULTIMATE.start_main_~j~5 87), 229031#(<= ULTIMATE.start_main_~j~5 80), 229030#(<= ULTIMATE.start_main_~j~5 81), 229029#(<= ULTIMATE.start_main_~j~5 82), 229028#(<= ULTIMATE.start_main_~j~5 83), 229035#(<= ULTIMATE.start_main_~j~5 76), 229034#(<= ULTIMATE.start_main_~j~5 77), 229033#(<= ULTIMATE.start_main_~j~5 78), 229032#(<= ULTIMATE.start_main_~j~5 79), 229039#(<= ULTIMATE.start_main_~j~5 72), 229038#(<= ULTIMATE.start_main_~j~5 73), 229037#(<= ULTIMATE.start_main_~j~5 74), 229036#(<= ULTIMATE.start_main_~j~5 75), 229043#(<= ULTIMATE.start_main_~j~5 68), 229042#(<= ULTIMATE.start_main_~j~5 69), 229041#(<= ULTIMATE.start_main_~j~5 70), 229040#(<= ULTIMATE.start_main_~j~5 71), 229047#(<= ULTIMATE.start_main_~j~5 64), 229046#(<= ULTIMATE.start_main_~j~5 65), 229045#(<= ULTIMATE.start_main_~j~5 66), 229044#(<= ULTIMATE.start_main_~j~5 67), 229051#(<= ULTIMATE.start_main_~j~5 60), 229050#(<= ULTIMATE.start_main_~j~5 61), 229049#(<= ULTIMATE.start_main_~j~5 62), 229048#(<= ULTIMATE.start_main_~j~5 63), 229055#(<= ULTIMATE.start_main_~j~5 56), 229054#(<= ULTIMATE.start_main_~j~5 57), 229053#(<= ULTIMATE.start_main_~j~5 58), 229052#(<= ULTIMATE.start_main_~j~5 59), 229059#(<= ULTIMATE.start_main_~j~5 52), 229058#(<= ULTIMATE.start_main_~j~5 53), 229057#(<= ULTIMATE.start_main_~j~5 54), 229056#(<= ULTIMATE.start_main_~j~5 55), 229063#(<= ULTIMATE.start_main_~j~5 48), 229062#(<= ULTIMATE.start_main_~j~5 49), 229061#(<= ULTIMATE.start_main_~j~5 50), 229060#(<= ULTIMATE.start_main_~j~5 51), 229067#(<= ULTIMATE.start_main_~j~5 44), 229066#(<= ULTIMATE.start_main_~j~5 45), 229065#(<= ULTIMATE.start_main_~j~5 46), 229064#(<= ULTIMATE.start_main_~j~5 47), 229071#(<= ULTIMATE.start_main_~j~5 40), 229070#(<= ULTIMATE.start_main_~j~5 41), 229069#(<= ULTIMATE.start_main_~j~5 42), 229068#(<= ULTIMATE.start_main_~j~5 43), 229075#(<= ULTIMATE.start_main_~j~5 36), 229074#(<= ULTIMATE.start_main_~j~5 37), 229073#(<= ULTIMATE.start_main_~j~5 38), 229072#(<= ULTIMATE.start_main_~j~5 39), 229079#(<= ULTIMATE.start_main_~j~5 32), 229078#(<= ULTIMATE.start_main_~j~5 33), 229077#(<= ULTIMATE.start_main_~j~5 34), 229076#(<= ULTIMATE.start_main_~j~5 35), 229083#(<= ULTIMATE.start_main_~j~5 28), 229082#(<= ULTIMATE.start_main_~j~5 29), 229081#(<= ULTIMATE.start_main_~j~5 30), 229080#(<= ULTIMATE.start_main_~j~5 31), 229087#(<= ULTIMATE.start_main_~j~5 24), 229086#(<= ULTIMATE.start_main_~j~5 25), 229085#(<= ULTIMATE.start_main_~j~5 26), 229084#(<= ULTIMATE.start_main_~j~5 27), 229091#(<= ULTIMATE.start_main_~j~5 20), 229090#(<= ULTIMATE.start_main_~j~5 21), 229089#(<= ULTIMATE.start_main_~j~5 22), 229088#(<= ULTIMATE.start_main_~j~5 23), 229095#(<= ULTIMATE.start_main_~j~5 16), 229094#(<= ULTIMATE.start_main_~j~5 17), 229093#(<= ULTIMATE.start_main_~j~5 18), 229092#(<= ULTIMATE.start_main_~j~5 19), 229099#(<= ULTIMATE.start_main_~j~5 12), 229098#(<= ULTIMATE.start_main_~j~5 13), 229097#(<= ULTIMATE.start_main_~j~5 14), 229096#(<= ULTIMATE.start_main_~j~5 15), 229103#(<= ULTIMATE.start_main_~j~5 8), 229102#(<= ULTIMATE.start_main_~j~5 9), 229101#(<= ULTIMATE.start_main_~j~5 10), 229100#(<= ULTIMATE.start_main_~j~5 11), 229107#(<= ULTIMATE.start_main_~j~5 4), 229106#(<= ULTIMATE.start_main_~j~5 5), 229105#(<= ULTIMATE.start_main_~j~5 6), 229104#(<= ULTIMATE.start_main_~j~5 7), 229111#(<= ULTIMATE.start_main_~j~5 0), 229110#(<= ULTIMATE.start_main_~j~5 1), 229109#(<= ULTIMATE.start_main_~j~5 2), 229108#(<= ULTIMATE.start_main_~j~5 3)] [2018-07-23 13:44:12,630 INFO L134 CoverageAnalysis]: Checked inductivity of 18984 backedges. 12656 proven. 6328 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:12,630 INFO L450 AbstractCegarLoop]: Interpolant automaton has 228 states [2018-07-23 13:44:12,631 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 228 interpolants. [2018-07-23 13:44:12,633 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13109, Invalid=38647, Unknown=0, NotChecked=0, Total=51756 [2018-07-23 13:44:12,633 INFO L87 Difference]: Start difference. First operand 342 states and 343 transitions. Second operand 228 states. [2018-07-23 13:44:15,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:44:15,126 INFO L93 Difference]: Finished difference Result 572 states and 574 transitions. [2018-07-23 13:44:15,126 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 228 states. [2018-07-23 13:44:15,126 INFO L78 Accepts]: Start accepts. Automaton has 228 states. Word has length 341 [2018-07-23 13:44:15,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:44:15,127 INFO L225 Difference]: With dead ends: 572 [2018-07-23 13:44:15,127 INFO L226 Difference]: Without dead ends: 343 [2018-07-23 13:44:15,133 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 339 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18872 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=26217, Invalid=89723, Unknown=0, NotChecked=0, Total=115940 [2018-07-23 13:44:15,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2018-07-23 13:44:15,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 343. [2018-07-23 13:44:15,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 343 states. [2018-07-23 13:44:15,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 344 transitions. [2018-07-23 13:44:15,179 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 344 transitions. Word has length 341 [2018-07-23 13:44:15,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:44:15,179 INFO L471 AbstractCegarLoop]: Abstraction has 343 states and 344 transitions. [2018-07-23 13:44:15,179 INFO L472 AbstractCegarLoop]: Interpolant automaton has 228 states. [2018-07-23 13:44:15,179 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 344 transitions. [2018-07-23 13:44:15,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2018-07-23 13:44:15,180 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:44:15,180 INFO L357 BasicCegarLoop]: trace histogram [113, 113, 112, 1, 1, 1, 1] [2018-07-23 13:44:15,180 INFO L414 AbstractCegarLoop]: === Iteration 226 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:44:15,180 INFO L82 PathProgramCache]: Analyzing trace with hash 605917922, now seen corresponding path program 224 times [2018-07-23 13:44:15,180 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:44:15,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:44:15,943 INFO L134 CoverageAnalysis]: Checked inductivity of 19097 backedges. 6441 proven. 12656 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:15,943 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:44:15,943 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [116] total 116 [2018-07-23 13:44:15,943 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:44:15,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:15,944 INFO L185 omatonBuilderFactory]: Interpolants [231171#(<= 1 ULTIMATE.start_main_~k~5), 231170#(<= 0 ULTIMATE.start_main_~k~5), 231169#false, 231168#true, 231175#(<= 5 ULTIMATE.start_main_~k~5), 231174#(<= 4 ULTIMATE.start_main_~k~5), 231173#(<= 3 ULTIMATE.start_main_~k~5), 231172#(<= 2 ULTIMATE.start_main_~k~5), 231179#(<= 9 ULTIMATE.start_main_~k~5), 231178#(<= 8 ULTIMATE.start_main_~k~5), 231177#(<= 7 ULTIMATE.start_main_~k~5), 231176#(<= 6 ULTIMATE.start_main_~k~5), 231183#(<= 13 ULTIMATE.start_main_~k~5), 231182#(<= 12 ULTIMATE.start_main_~k~5), 231181#(<= 11 ULTIMATE.start_main_~k~5), 231180#(<= 10 ULTIMATE.start_main_~k~5), 231187#(<= 17 ULTIMATE.start_main_~k~5), 231186#(<= 16 ULTIMATE.start_main_~k~5), 231185#(<= 15 ULTIMATE.start_main_~k~5), 231184#(<= 14 ULTIMATE.start_main_~k~5), 231191#(<= 21 ULTIMATE.start_main_~k~5), 231190#(<= 20 ULTIMATE.start_main_~k~5), 231189#(<= 19 ULTIMATE.start_main_~k~5), 231188#(<= 18 ULTIMATE.start_main_~k~5), 231195#(<= 25 ULTIMATE.start_main_~k~5), 231194#(<= 24 ULTIMATE.start_main_~k~5), 231193#(<= 23 ULTIMATE.start_main_~k~5), 231192#(<= 22 ULTIMATE.start_main_~k~5), 231199#(<= 29 ULTIMATE.start_main_~k~5), 231198#(<= 28 ULTIMATE.start_main_~k~5), 231197#(<= 27 ULTIMATE.start_main_~k~5), 231196#(<= 26 ULTIMATE.start_main_~k~5), 231203#(<= 33 ULTIMATE.start_main_~k~5), 231202#(<= 32 ULTIMATE.start_main_~k~5), 231201#(<= 31 ULTIMATE.start_main_~k~5), 231200#(<= 30 ULTIMATE.start_main_~k~5), 231207#(<= 37 ULTIMATE.start_main_~k~5), 231206#(<= 36 ULTIMATE.start_main_~k~5), 231205#(<= 35 ULTIMATE.start_main_~k~5), 231204#(<= 34 ULTIMATE.start_main_~k~5), 231211#(<= 41 ULTIMATE.start_main_~k~5), 231210#(<= 40 ULTIMATE.start_main_~k~5), 231209#(<= 39 ULTIMATE.start_main_~k~5), 231208#(<= 38 ULTIMATE.start_main_~k~5), 231215#(<= 45 ULTIMATE.start_main_~k~5), 231214#(<= 44 ULTIMATE.start_main_~k~5), 231213#(<= 43 ULTIMATE.start_main_~k~5), 231212#(<= 42 ULTIMATE.start_main_~k~5), 231219#(<= 49 ULTIMATE.start_main_~k~5), 231218#(<= 48 ULTIMATE.start_main_~k~5), 231217#(<= 47 ULTIMATE.start_main_~k~5), 231216#(<= 46 ULTIMATE.start_main_~k~5), 231223#(<= 53 ULTIMATE.start_main_~k~5), 231222#(<= 52 ULTIMATE.start_main_~k~5), 231221#(<= 51 ULTIMATE.start_main_~k~5), 231220#(<= 50 ULTIMATE.start_main_~k~5), 231227#(<= 57 ULTIMATE.start_main_~k~5), 231226#(<= 56 ULTIMATE.start_main_~k~5), 231225#(<= 55 ULTIMATE.start_main_~k~5), 231224#(<= 54 ULTIMATE.start_main_~k~5), 231231#(<= 61 ULTIMATE.start_main_~k~5), 231230#(<= 60 ULTIMATE.start_main_~k~5), 231229#(<= 59 ULTIMATE.start_main_~k~5), 231228#(<= 58 ULTIMATE.start_main_~k~5), 231235#(<= 65 ULTIMATE.start_main_~k~5), 231234#(<= 64 ULTIMATE.start_main_~k~5), 231233#(<= 63 ULTIMATE.start_main_~k~5), 231232#(<= 62 ULTIMATE.start_main_~k~5), 231239#(<= 69 ULTIMATE.start_main_~k~5), 231238#(<= 68 ULTIMATE.start_main_~k~5), 231237#(<= 67 ULTIMATE.start_main_~k~5), 231236#(<= 66 ULTIMATE.start_main_~k~5), 231243#(<= 73 ULTIMATE.start_main_~k~5), 231242#(<= 72 ULTIMATE.start_main_~k~5), 231241#(<= 71 ULTIMATE.start_main_~k~5), 231240#(<= 70 ULTIMATE.start_main_~k~5), 231247#(<= 77 ULTIMATE.start_main_~k~5), 231246#(<= 76 ULTIMATE.start_main_~k~5), 231245#(<= 75 ULTIMATE.start_main_~k~5), 231244#(<= 74 ULTIMATE.start_main_~k~5), 231251#(<= 81 ULTIMATE.start_main_~k~5), 231250#(<= 80 ULTIMATE.start_main_~k~5), 231249#(<= 79 ULTIMATE.start_main_~k~5), 231248#(<= 78 ULTIMATE.start_main_~k~5), 231255#(<= 85 ULTIMATE.start_main_~k~5), 231254#(<= 84 ULTIMATE.start_main_~k~5), 231253#(<= 83 ULTIMATE.start_main_~k~5), 231252#(<= 82 ULTIMATE.start_main_~k~5), 231259#(<= 89 ULTIMATE.start_main_~k~5), 231258#(<= 88 ULTIMATE.start_main_~k~5), 231257#(<= 87 ULTIMATE.start_main_~k~5), 231256#(<= 86 ULTIMATE.start_main_~k~5), 231263#(<= 93 ULTIMATE.start_main_~k~5), 231262#(<= 92 ULTIMATE.start_main_~k~5), 231261#(<= 91 ULTIMATE.start_main_~k~5), 231260#(<= 90 ULTIMATE.start_main_~k~5), 231267#(<= 97 ULTIMATE.start_main_~k~5), 231266#(<= 96 ULTIMATE.start_main_~k~5), 231265#(<= 95 ULTIMATE.start_main_~k~5), 231264#(<= 94 ULTIMATE.start_main_~k~5), 231271#(<= 101 ULTIMATE.start_main_~k~5), 231270#(<= 100 ULTIMATE.start_main_~k~5), 231269#(<= 99 ULTIMATE.start_main_~k~5), 231268#(<= 98 ULTIMATE.start_main_~k~5), 231275#(<= 105 ULTIMATE.start_main_~k~5), 231274#(<= 104 ULTIMATE.start_main_~k~5), 231273#(<= 103 ULTIMATE.start_main_~k~5), 231272#(<= 102 ULTIMATE.start_main_~k~5), 231279#(<= 109 ULTIMATE.start_main_~k~5), 231278#(<= 108 ULTIMATE.start_main_~k~5), 231277#(<= 107 ULTIMATE.start_main_~k~5), 231276#(<= 106 ULTIMATE.start_main_~k~5), 231283#(<= 113 ULTIMATE.start_main_~k~5), 231282#(<= 112 ULTIMATE.start_main_~k~5), 231281#(<= 111 ULTIMATE.start_main_~k~5), 231280#(<= 110 ULTIMATE.start_main_~k~5), 231284#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond)] [2018-07-23 13:44:15,945 INFO L134 CoverageAnalysis]: Checked inductivity of 19097 backedges. 6441 proven. 12656 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:15,945 INFO L450 AbstractCegarLoop]: Interpolant automaton has 117 states [2018-07-23 13:44:15,945 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 117 interpolants. [2018-07-23 13:44:15,946 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6672, Invalid=6900, Unknown=0, NotChecked=0, Total=13572 [2018-07-23 13:44:15,946 INFO L87 Difference]: Start difference. First operand 343 states and 344 transitions. Second operand 117 states. [2018-07-23 13:44:16,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:44:16,496 INFO L93 Difference]: Finished difference Result 351 states and 352 transitions. [2018-07-23 13:44:16,496 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 230 states. [2018-07-23 13:44:16,497 INFO L78 Accepts]: Start accepts. Automaton has 117 states. Word has length 342 [2018-07-23 13:44:16,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:44:16,497 INFO L225 Difference]: With dead ends: 351 [2018-07-23 13:44:16,497 INFO L226 Difference]: Without dead ends: 349 [2018-07-23 13:44:16,500 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 229 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12882 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=20010, Invalid=33120, Unknown=0, NotChecked=0, Total=53130 [2018-07-23 13:44:16,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2018-07-23 13:44:16,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 345. [2018-07-23 13:44:16,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2018-07-23 13:44:16,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 346 transitions. [2018-07-23 13:44:16,546 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 346 transitions. Word has length 342 [2018-07-23 13:44:16,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:44:16,547 INFO L471 AbstractCegarLoop]: Abstraction has 345 states and 346 transitions. [2018-07-23 13:44:16,547 INFO L472 AbstractCegarLoop]: Interpolant automaton has 117 states. [2018-07-23 13:44:16,547 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 346 transitions. [2018-07-23 13:44:16,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2018-07-23 13:44:16,548 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:44:16,548 INFO L357 BasicCegarLoop]: trace histogram [114, 113, 113, 1, 1, 1, 1] [2018-07-23 13:44:16,548 INFO L414 AbstractCegarLoop]: === Iteration 227 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:44:16,548 INFO L82 PathProgramCache]: Analyzing trace with hash -1828363190, now seen corresponding path program 225 times [2018-07-23 13:44:16,548 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:44:16,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:44:17,751 INFO L134 CoverageAnalysis]: Checked inductivity of 19323 backedges. 12882 proven. 6441 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:17,751 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:44:17,752 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [229] total 229 [2018-07-23 13:44:17,752 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:44:17,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:17,752 INFO L185 omatonBuilderFactory]: Interpolants [232963#(<= ULTIMATE.start_main_~i~5 56), 232962#(<= ULTIMATE.start_main_~i~5 55), 232961#(<= ULTIMATE.start_main_~i~5 54), 232960#(<= ULTIMATE.start_main_~i~5 53), 232967#(<= ULTIMATE.start_main_~i~5 60), 232966#(<= ULTIMATE.start_main_~i~5 59), 232965#(<= ULTIMATE.start_main_~i~5 58), 232964#(<= ULTIMATE.start_main_~i~5 57), 232971#(<= ULTIMATE.start_main_~i~5 64), 232970#(<= ULTIMATE.start_main_~i~5 63), 232969#(<= ULTIMATE.start_main_~i~5 62), 232968#(<= ULTIMATE.start_main_~i~5 61), 232975#(<= ULTIMATE.start_main_~i~5 68), 232974#(<= ULTIMATE.start_main_~i~5 67), 232973#(<= ULTIMATE.start_main_~i~5 66), 232972#(<= ULTIMATE.start_main_~i~5 65), 232979#(<= ULTIMATE.start_main_~i~5 72), 232978#(<= ULTIMATE.start_main_~i~5 71), 232977#(<= ULTIMATE.start_main_~i~5 70), 232976#(<= ULTIMATE.start_main_~i~5 69), 232983#(<= ULTIMATE.start_main_~i~5 76), 232982#(<= ULTIMATE.start_main_~i~5 75), 232981#(<= ULTIMATE.start_main_~i~5 74), 232980#(<= ULTIMATE.start_main_~i~5 73), 232987#(<= ULTIMATE.start_main_~i~5 80), 232986#(<= ULTIMATE.start_main_~i~5 79), 232985#(<= ULTIMATE.start_main_~i~5 78), 232984#(<= ULTIMATE.start_main_~i~5 77), 232991#(<= ULTIMATE.start_main_~i~5 84), 232990#(<= ULTIMATE.start_main_~i~5 83), 232989#(<= ULTIMATE.start_main_~i~5 82), 232988#(<= ULTIMATE.start_main_~i~5 81), 232995#(<= ULTIMATE.start_main_~i~5 88), 232994#(<= ULTIMATE.start_main_~i~5 87), 232993#(<= ULTIMATE.start_main_~i~5 86), 232992#(<= ULTIMATE.start_main_~i~5 85), 232999#(<= ULTIMATE.start_main_~i~5 92), 232998#(<= ULTIMATE.start_main_~i~5 91), 232997#(<= ULTIMATE.start_main_~i~5 90), 232996#(<= ULTIMATE.start_main_~i~5 89), 233003#(<= ULTIMATE.start_main_~i~5 96), 233002#(<= ULTIMATE.start_main_~i~5 95), 233001#(<= ULTIMATE.start_main_~i~5 94), 233000#(<= ULTIMATE.start_main_~i~5 93), 233007#(<= ULTIMATE.start_main_~i~5 100), 233006#(<= ULTIMATE.start_main_~i~5 99), 233005#(<= ULTIMATE.start_main_~i~5 98), 233004#(<= ULTIMATE.start_main_~i~5 97), 233011#(<= ULTIMATE.start_main_~i~5 104), 233010#(<= ULTIMATE.start_main_~i~5 103), 233009#(<= ULTIMATE.start_main_~i~5 102), 233008#(<= ULTIMATE.start_main_~i~5 101), 233015#(<= ULTIMATE.start_main_~i~5 108), 233014#(<= ULTIMATE.start_main_~i~5 107), 233013#(<= ULTIMATE.start_main_~i~5 106), 233012#(<= ULTIMATE.start_main_~i~5 105), 233019#(<= ULTIMATE.start_main_~i~5 112), 233018#(<= ULTIMATE.start_main_~i~5 111), 233017#(<= ULTIMATE.start_main_~i~5 110), 233016#(<= ULTIMATE.start_main_~i~5 109), 233023#(<= ULTIMATE.start_main_~j~5 111), 233022#(<= ULTIMATE.start_main_~j~5 112), 233021#(<= ULTIMATE.start_main_~j~5 113), 233020#(<= ULTIMATE.start_main_~i~5 113), 233027#(<= ULTIMATE.start_main_~j~5 107), 233026#(<= ULTIMATE.start_main_~j~5 108), 233025#(<= ULTIMATE.start_main_~j~5 109), 233024#(<= ULTIMATE.start_main_~j~5 110), 233031#(<= ULTIMATE.start_main_~j~5 103), 233030#(<= ULTIMATE.start_main_~j~5 104), 233029#(<= ULTIMATE.start_main_~j~5 105), 233028#(<= ULTIMATE.start_main_~j~5 106), 233035#(<= ULTIMATE.start_main_~j~5 99), 233034#(<= ULTIMATE.start_main_~j~5 100), 233033#(<= ULTIMATE.start_main_~j~5 101), 233032#(<= ULTIMATE.start_main_~j~5 102), 233039#(<= ULTIMATE.start_main_~j~5 95), 233038#(<= ULTIMATE.start_main_~j~5 96), 233037#(<= ULTIMATE.start_main_~j~5 97), 233036#(<= ULTIMATE.start_main_~j~5 98), 233043#(<= ULTIMATE.start_main_~j~5 91), 233042#(<= ULTIMATE.start_main_~j~5 92), 233041#(<= ULTIMATE.start_main_~j~5 93), 233040#(<= ULTIMATE.start_main_~j~5 94), 233047#(<= ULTIMATE.start_main_~j~5 87), 233046#(<= ULTIMATE.start_main_~j~5 88), 233045#(<= ULTIMATE.start_main_~j~5 89), 233044#(<= ULTIMATE.start_main_~j~5 90), 233051#(<= ULTIMATE.start_main_~j~5 83), 233050#(<= ULTIMATE.start_main_~j~5 84), 233049#(<= ULTIMATE.start_main_~j~5 85), 233048#(<= ULTIMATE.start_main_~j~5 86), 233055#(<= ULTIMATE.start_main_~j~5 79), 233054#(<= ULTIMATE.start_main_~j~5 80), 233053#(<= ULTIMATE.start_main_~j~5 81), 233052#(<= ULTIMATE.start_main_~j~5 82), 233059#(<= ULTIMATE.start_main_~j~5 75), 233058#(<= ULTIMATE.start_main_~j~5 76), 233057#(<= ULTIMATE.start_main_~j~5 77), 233056#(<= ULTIMATE.start_main_~j~5 78), 233063#(<= ULTIMATE.start_main_~j~5 71), 233062#(<= ULTIMATE.start_main_~j~5 72), 233061#(<= ULTIMATE.start_main_~j~5 73), 233060#(<= ULTIMATE.start_main_~j~5 74), 233067#(<= ULTIMATE.start_main_~j~5 67), 233066#(<= ULTIMATE.start_main_~j~5 68), 233065#(<= ULTIMATE.start_main_~j~5 69), 233064#(<= ULTIMATE.start_main_~j~5 70), 233071#(<= ULTIMATE.start_main_~j~5 63), 233070#(<= ULTIMATE.start_main_~j~5 64), 233069#(<= ULTIMATE.start_main_~j~5 65), 233068#(<= ULTIMATE.start_main_~j~5 66), 233075#(<= ULTIMATE.start_main_~j~5 59), 233074#(<= ULTIMATE.start_main_~j~5 60), 233073#(<= ULTIMATE.start_main_~j~5 61), 233072#(<= ULTIMATE.start_main_~j~5 62), 233079#(<= ULTIMATE.start_main_~j~5 55), 233078#(<= ULTIMATE.start_main_~j~5 56), 233077#(<= ULTIMATE.start_main_~j~5 57), 233076#(<= ULTIMATE.start_main_~j~5 58), 233083#(<= ULTIMATE.start_main_~j~5 51), 233082#(<= ULTIMATE.start_main_~j~5 52), 233081#(<= ULTIMATE.start_main_~j~5 53), 233080#(<= ULTIMATE.start_main_~j~5 54), 233087#(<= ULTIMATE.start_main_~j~5 47), 233086#(<= ULTIMATE.start_main_~j~5 48), 233085#(<= ULTIMATE.start_main_~j~5 49), 233084#(<= ULTIMATE.start_main_~j~5 50), 233091#(<= ULTIMATE.start_main_~j~5 43), 233090#(<= ULTIMATE.start_main_~j~5 44), 233089#(<= ULTIMATE.start_main_~j~5 45), 233088#(<= ULTIMATE.start_main_~j~5 46), 233095#(<= ULTIMATE.start_main_~j~5 39), 233094#(<= ULTIMATE.start_main_~j~5 40), 233093#(<= ULTIMATE.start_main_~j~5 41), 233092#(<= ULTIMATE.start_main_~j~5 42), 233099#(<= ULTIMATE.start_main_~j~5 35), 233098#(<= ULTIMATE.start_main_~j~5 36), 233097#(<= ULTIMATE.start_main_~j~5 37), 233096#(<= ULTIMATE.start_main_~j~5 38), 233103#(<= ULTIMATE.start_main_~j~5 31), 233102#(<= ULTIMATE.start_main_~j~5 32), 233101#(<= ULTIMATE.start_main_~j~5 33), 233100#(<= ULTIMATE.start_main_~j~5 34), 233107#(<= ULTIMATE.start_main_~j~5 27), 233106#(<= ULTIMATE.start_main_~j~5 28), 233105#(<= ULTIMATE.start_main_~j~5 29), 233104#(<= ULTIMATE.start_main_~j~5 30), 233111#(<= ULTIMATE.start_main_~j~5 23), 233110#(<= ULTIMATE.start_main_~j~5 24), 233109#(<= ULTIMATE.start_main_~j~5 25), 233108#(<= ULTIMATE.start_main_~j~5 26), 233115#(<= ULTIMATE.start_main_~j~5 19), 233114#(<= ULTIMATE.start_main_~j~5 20), 233113#(<= ULTIMATE.start_main_~j~5 21), 233112#(<= ULTIMATE.start_main_~j~5 22), 233119#(<= ULTIMATE.start_main_~j~5 15), 233118#(<= ULTIMATE.start_main_~j~5 16), 233117#(<= ULTIMATE.start_main_~j~5 17), 233116#(<= ULTIMATE.start_main_~j~5 18), 233123#(<= ULTIMATE.start_main_~j~5 11), 233122#(<= ULTIMATE.start_main_~j~5 12), 233121#(<= ULTIMATE.start_main_~j~5 13), 233120#(<= ULTIMATE.start_main_~j~5 14), 233127#(<= ULTIMATE.start_main_~j~5 7), 233126#(<= ULTIMATE.start_main_~j~5 8), 233125#(<= ULTIMATE.start_main_~j~5 9), 233124#(<= ULTIMATE.start_main_~j~5 10), 233131#(<= ULTIMATE.start_main_~j~5 3), 233130#(<= ULTIMATE.start_main_~j~5 4), 233129#(<= ULTIMATE.start_main_~j~5 5), 233128#(<= ULTIMATE.start_main_~j~5 6), 233134#(<= ULTIMATE.start_main_~j~5 0), 233133#(<= ULTIMATE.start_main_~j~5 1), 233132#(<= ULTIMATE.start_main_~j~5 2), 232907#(<= ULTIMATE.start_main_~i~5 0), 232906#false, 232905#true, 232911#(<= ULTIMATE.start_main_~i~5 4), 232910#(<= ULTIMATE.start_main_~i~5 3), 232909#(<= ULTIMATE.start_main_~i~5 2), 232908#(<= ULTIMATE.start_main_~i~5 1), 232915#(<= ULTIMATE.start_main_~i~5 8), 232914#(<= ULTIMATE.start_main_~i~5 7), 232913#(<= ULTIMATE.start_main_~i~5 6), 232912#(<= ULTIMATE.start_main_~i~5 5), 232919#(<= ULTIMATE.start_main_~i~5 12), 232918#(<= ULTIMATE.start_main_~i~5 11), 232917#(<= ULTIMATE.start_main_~i~5 10), 232916#(<= ULTIMATE.start_main_~i~5 9), 232923#(<= ULTIMATE.start_main_~i~5 16), 232922#(<= ULTIMATE.start_main_~i~5 15), 232921#(<= ULTIMATE.start_main_~i~5 14), 232920#(<= ULTIMATE.start_main_~i~5 13), 232927#(<= ULTIMATE.start_main_~i~5 20), 232926#(<= ULTIMATE.start_main_~i~5 19), 232925#(<= ULTIMATE.start_main_~i~5 18), 232924#(<= ULTIMATE.start_main_~i~5 17), 232931#(<= ULTIMATE.start_main_~i~5 24), 232930#(<= ULTIMATE.start_main_~i~5 23), 232929#(<= ULTIMATE.start_main_~i~5 22), 232928#(<= ULTIMATE.start_main_~i~5 21), 232935#(<= ULTIMATE.start_main_~i~5 28), 232934#(<= ULTIMATE.start_main_~i~5 27), 232933#(<= ULTIMATE.start_main_~i~5 26), 232932#(<= ULTIMATE.start_main_~i~5 25), 232939#(<= ULTIMATE.start_main_~i~5 32), 232938#(<= ULTIMATE.start_main_~i~5 31), 232937#(<= ULTIMATE.start_main_~i~5 30), 232936#(<= ULTIMATE.start_main_~i~5 29), 232943#(<= ULTIMATE.start_main_~i~5 36), 232942#(<= ULTIMATE.start_main_~i~5 35), 232941#(<= ULTIMATE.start_main_~i~5 34), 232940#(<= ULTIMATE.start_main_~i~5 33), 232947#(<= ULTIMATE.start_main_~i~5 40), 232946#(<= ULTIMATE.start_main_~i~5 39), 232945#(<= ULTIMATE.start_main_~i~5 38), 232944#(<= ULTIMATE.start_main_~i~5 37), 232951#(<= ULTIMATE.start_main_~i~5 44), 232950#(<= ULTIMATE.start_main_~i~5 43), 232949#(<= ULTIMATE.start_main_~i~5 42), 232948#(<= ULTIMATE.start_main_~i~5 41), 232955#(<= ULTIMATE.start_main_~i~5 48), 232954#(<= ULTIMATE.start_main_~i~5 47), 232953#(<= ULTIMATE.start_main_~i~5 46), 232952#(<= ULTIMATE.start_main_~i~5 45), 232959#(<= ULTIMATE.start_main_~i~5 52), 232958#(<= ULTIMATE.start_main_~i~5 51), 232957#(<= ULTIMATE.start_main_~i~5 50), 232956#(<= ULTIMATE.start_main_~i~5 49)] [2018-07-23 13:44:17,753 INFO L134 CoverageAnalysis]: Checked inductivity of 19323 backedges. 12882 proven. 6441 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:17,754 INFO L450 AbstractCegarLoop]: Interpolant automaton has 230 states [2018-07-23 13:44:17,755 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 230 interpolants. [2018-07-23 13:44:17,757 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13339, Invalid=39331, Unknown=0, NotChecked=0, Total=52670 [2018-07-23 13:44:17,757 INFO L87 Difference]: Start difference. First operand 345 states and 346 transitions. Second operand 230 states. [2018-07-23 13:44:19,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:44:19,499 INFO L93 Difference]: Finished difference Result 577 states and 579 transitions. [2018-07-23 13:44:19,499 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 230 states. [2018-07-23 13:44:19,499 INFO L78 Accepts]: Start accepts. Automaton has 230 states. Word has length 344 [2018-07-23 13:44:19,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:44:19,499 INFO L225 Difference]: With dead ends: 577 [2018-07-23 13:44:19,500 INFO L226 Difference]: Without dead ends: 346 [2018-07-23 13:44:19,504 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 342 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19210 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=26677, Invalid=91315, Unknown=0, NotChecked=0, Total=117992 [2018-07-23 13:44:19,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2018-07-23 13:44:19,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2018-07-23 13:44:19,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2018-07-23 13:44:19,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 347 transitions. [2018-07-23 13:44:19,552 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 347 transitions. Word has length 344 [2018-07-23 13:44:19,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:44:19,552 INFO L471 AbstractCegarLoop]: Abstraction has 346 states and 347 transitions. [2018-07-23 13:44:19,552 INFO L472 AbstractCegarLoop]: Interpolant automaton has 230 states. [2018-07-23 13:44:19,552 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 347 transitions. [2018-07-23 13:44:19,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2018-07-23 13:44:19,553 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:44:19,553 INFO L357 BasicCegarLoop]: trace histogram [114, 114, 113, 1, 1, 1, 1] [2018-07-23 13:44:19,553 INFO L414 AbstractCegarLoop]: === Iteration 228 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:44:19,553 INFO L82 PathProgramCache]: Analyzing trace with hash -1875587901, now seen corresponding path program 226 times [2018-07-23 13:44:19,553 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:44:19,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:44:20,317 INFO L134 CoverageAnalysis]: Checked inductivity of 19437 backedges. 6555 proven. 12882 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:20,318 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:44:20,318 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [117] total 117 [2018-07-23 13:44:20,318 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:44:20,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:20,319 INFO L185 omatonBuilderFactory]: Interpolants [235267#(<= 56 ULTIMATE.start_main_~k~5), 235266#(<= 55 ULTIMATE.start_main_~k~5), 235265#(<= 54 ULTIMATE.start_main_~k~5), 235264#(<= 53 ULTIMATE.start_main_~k~5), 235271#(<= 60 ULTIMATE.start_main_~k~5), 235270#(<= 59 ULTIMATE.start_main_~k~5), 235269#(<= 58 ULTIMATE.start_main_~k~5), 235268#(<= 57 ULTIMATE.start_main_~k~5), 235275#(<= 64 ULTIMATE.start_main_~k~5), 235274#(<= 63 ULTIMATE.start_main_~k~5), 235273#(<= 62 ULTIMATE.start_main_~k~5), 235272#(<= 61 ULTIMATE.start_main_~k~5), 235279#(<= 68 ULTIMATE.start_main_~k~5), 235278#(<= 67 ULTIMATE.start_main_~k~5), 235277#(<= 66 ULTIMATE.start_main_~k~5), 235276#(<= 65 ULTIMATE.start_main_~k~5), 235283#(<= 72 ULTIMATE.start_main_~k~5), 235282#(<= 71 ULTIMATE.start_main_~k~5), 235281#(<= 70 ULTIMATE.start_main_~k~5), 235280#(<= 69 ULTIMATE.start_main_~k~5), 235287#(<= 76 ULTIMATE.start_main_~k~5), 235286#(<= 75 ULTIMATE.start_main_~k~5), 235285#(<= 74 ULTIMATE.start_main_~k~5), 235284#(<= 73 ULTIMATE.start_main_~k~5), 235291#(<= 80 ULTIMATE.start_main_~k~5), 235290#(<= 79 ULTIMATE.start_main_~k~5), 235289#(<= 78 ULTIMATE.start_main_~k~5), 235288#(<= 77 ULTIMATE.start_main_~k~5), 235295#(<= 84 ULTIMATE.start_main_~k~5), 235294#(<= 83 ULTIMATE.start_main_~k~5), 235293#(<= 82 ULTIMATE.start_main_~k~5), 235292#(<= 81 ULTIMATE.start_main_~k~5), 235299#(<= 88 ULTIMATE.start_main_~k~5), 235298#(<= 87 ULTIMATE.start_main_~k~5), 235297#(<= 86 ULTIMATE.start_main_~k~5), 235296#(<= 85 ULTIMATE.start_main_~k~5), 235303#(<= 92 ULTIMATE.start_main_~k~5), 235302#(<= 91 ULTIMATE.start_main_~k~5), 235301#(<= 90 ULTIMATE.start_main_~k~5), 235300#(<= 89 ULTIMATE.start_main_~k~5), 235307#(<= 96 ULTIMATE.start_main_~k~5), 235306#(<= 95 ULTIMATE.start_main_~k~5), 235305#(<= 94 ULTIMATE.start_main_~k~5), 235304#(<= 93 ULTIMATE.start_main_~k~5), 235311#(<= 100 ULTIMATE.start_main_~k~5), 235310#(<= 99 ULTIMATE.start_main_~k~5), 235309#(<= 98 ULTIMATE.start_main_~k~5), 235308#(<= 97 ULTIMATE.start_main_~k~5), 235315#(<= 104 ULTIMATE.start_main_~k~5), 235314#(<= 103 ULTIMATE.start_main_~k~5), 235313#(<= 102 ULTIMATE.start_main_~k~5), 235312#(<= 101 ULTIMATE.start_main_~k~5), 235319#(<= 108 ULTIMATE.start_main_~k~5), 235318#(<= 107 ULTIMATE.start_main_~k~5), 235317#(<= 106 ULTIMATE.start_main_~k~5), 235316#(<= 105 ULTIMATE.start_main_~k~5), 235323#(<= 112 ULTIMATE.start_main_~k~5), 235322#(<= 111 ULTIMATE.start_main_~k~5), 235321#(<= 110 ULTIMATE.start_main_~k~5), 235320#(<= 109 ULTIMATE.start_main_~k~5), 235326#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 235325#(<= 114 ULTIMATE.start_main_~k~5), 235324#(<= 113 ULTIMATE.start_main_~k~5), 235211#(<= 0 ULTIMATE.start_main_~k~5), 235210#false, 235209#true, 235215#(<= 4 ULTIMATE.start_main_~k~5), 235214#(<= 3 ULTIMATE.start_main_~k~5), 235213#(<= 2 ULTIMATE.start_main_~k~5), 235212#(<= 1 ULTIMATE.start_main_~k~5), 235219#(<= 8 ULTIMATE.start_main_~k~5), 235218#(<= 7 ULTIMATE.start_main_~k~5), 235217#(<= 6 ULTIMATE.start_main_~k~5), 235216#(<= 5 ULTIMATE.start_main_~k~5), 235223#(<= 12 ULTIMATE.start_main_~k~5), 235222#(<= 11 ULTIMATE.start_main_~k~5), 235221#(<= 10 ULTIMATE.start_main_~k~5), 235220#(<= 9 ULTIMATE.start_main_~k~5), 235227#(<= 16 ULTIMATE.start_main_~k~5), 235226#(<= 15 ULTIMATE.start_main_~k~5), 235225#(<= 14 ULTIMATE.start_main_~k~5), 235224#(<= 13 ULTIMATE.start_main_~k~5), 235231#(<= 20 ULTIMATE.start_main_~k~5), 235230#(<= 19 ULTIMATE.start_main_~k~5), 235229#(<= 18 ULTIMATE.start_main_~k~5), 235228#(<= 17 ULTIMATE.start_main_~k~5), 235235#(<= 24 ULTIMATE.start_main_~k~5), 235234#(<= 23 ULTIMATE.start_main_~k~5), 235233#(<= 22 ULTIMATE.start_main_~k~5), 235232#(<= 21 ULTIMATE.start_main_~k~5), 235239#(<= 28 ULTIMATE.start_main_~k~5), 235238#(<= 27 ULTIMATE.start_main_~k~5), 235237#(<= 26 ULTIMATE.start_main_~k~5), 235236#(<= 25 ULTIMATE.start_main_~k~5), 235243#(<= 32 ULTIMATE.start_main_~k~5), 235242#(<= 31 ULTIMATE.start_main_~k~5), 235241#(<= 30 ULTIMATE.start_main_~k~5), 235240#(<= 29 ULTIMATE.start_main_~k~5), 235247#(<= 36 ULTIMATE.start_main_~k~5), 235246#(<= 35 ULTIMATE.start_main_~k~5), 235245#(<= 34 ULTIMATE.start_main_~k~5), 235244#(<= 33 ULTIMATE.start_main_~k~5), 235251#(<= 40 ULTIMATE.start_main_~k~5), 235250#(<= 39 ULTIMATE.start_main_~k~5), 235249#(<= 38 ULTIMATE.start_main_~k~5), 235248#(<= 37 ULTIMATE.start_main_~k~5), 235255#(<= 44 ULTIMATE.start_main_~k~5), 235254#(<= 43 ULTIMATE.start_main_~k~5), 235253#(<= 42 ULTIMATE.start_main_~k~5), 235252#(<= 41 ULTIMATE.start_main_~k~5), 235259#(<= 48 ULTIMATE.start_main_~k~5), 235258#(<= 47 ULTIMATE.start_main_~k~5), 235257#(<= 46 ULTIMATE.start_main_~k~5), 235256#(<= 45 ULTIMATE.start_main_~k~5), 235263#(<= 52 ULTIMATE.start_main_~k~5), 235262#(<= 51 ULTIMATE.start_main_~k~5), 235261#(<= 50 ULTIMATE.start_main_~k~5), 235260#(<= 49 ULTIMATE.start_main_~k~5)] [2018-07-23 13:44:20,319 INFO L134 CoverageAnalysis]: Checked inductivity of 19437 backedges. 6555 proven. 12882 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:20,320 INFO L450 AbstractCegarLoop]: Interpolant automaton has 118 states [2018-07-23 13:44:20,320 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 118 interpolants. [2018-07-23 13:44:20,321 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6788, Invalid=7018, Unknown=0, NotChecked=0, Total=13806 [2018-07-23 13:44:20,321 INFO L87 Difference]: Start difference. First operand 346 states and 347 transitions. Second operand 118 states. [2018-07-23 13:44:20,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:44:20,920 INFO L93 Difference]: Finished difference Result 354 states and 355 transitions. [2018-07-23 13:44:20,920 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 232 states. [2018-07-23 13:44:20,920 INFO L78 Accepts]: Start accepts. Automaton has 118 states. Word has length 345 [2018-07-23 13:44:20,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:44:20,920 INFO L225 Difference]: With dead ends: 354 [2018-07-23 13:44:20,920 INFO L226 Difference]: Without dead ends: 352 [2018-07-23 13:44:20,924 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 231 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13110 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=20358, Invalid=33698, Unknown=0, NotChecked=0, Total=54056 [2018-07-23 13:44:20,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2018-07-23 13:44:20,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 348. [2018-07-23 13:44:20,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2018-07-23 13:44:20,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 349 transitions. [2018-07-23 13:44:20,972 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 349 transitions. Word has length 345 [2018-07-23 13:44:20,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:44:20,972 INFO L471 AbstractCegarLoop]: Abstraction has 348 states and 349 transitions. [2018-07-23 13:44:20,972 INFO L472 AbstractCegarLoop]: Interpolant automaton has 118 states. [2018-07-23 13:44:20,972 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 349 transitions. [2018-07-23 13:44:20,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2018-07-23 13:44:20,973 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:44:20,973 INFO L357 BasicCegarLoop]: trace histogram [115, 114, 114, 1, 1, 1, 1] [2018-07-23 13:44:20,973 INFO L414 AbstractCegarLoop]: === Iteration 229 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:44:20,973 INFO L82 PathProgramCache]: Analyzing trace with hash 1446357483, now seen corresponding path program 227 times [2018-07-23 13:44:20,974 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:44:21,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:44:22,153 INFO L134 CoverageAnalysis]: Checked inductivity of 19665 backedges. 13110 proven. 6555 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:22,154 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:44:22,154 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [231] total 231 [2018-07-23 13:44:22,154 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:44:22,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:22,155 INFO L185 omatonBuilderFactory]: Interpolants [237059#(<= ULTIMATE.start_main_~i~5 96), 237058#(<= ULTIMATE.start_main_~i~5 95), 237057#(<= ULTIMATE.start_main_~i~5 94), 237056#(<= ULTIMATE.start_main_~i~5 93), 237063#(<= ULTIMATE.start_main_~i~5 100), 237062#(<= ULTIMATE.start_main_~i~5 99), 237061#(<= ULTIMATE.start_main_~i~5 98), 237060#(<= ULTIMATE.start_main_~i~5 97), 237067#(<= ULTIMATE.start_main_~i~5 104), 237066#(<= ULTIMATE.start_main_~i~5 103), 237065#(<= ULTIMATE.start_main_~i~5 102), 237064#(<= ULTIMATE.start_main_~i~5 101), 237071#(<= ULTIMATE.start_main_~i~5 108), 237070#(<= ULTIMATE.start_main_~i~5 107), 237069#(<= ULTIMATE.start_main_~i~5 106), 237068#(<= ULTIMATE.start_main_~i~5 105), 237075#(<= ULTIMATE.start_main_~i~5 112), 237074#(<= ULTIMATE.start_main_~i~5 111), 237073#(<= ULTIMATE.start_main_~i~5 110), 237072#(<= ULTIMATE.start_main_~i~5 109), 237079#(<= ULTIMATE.start_main_~j~5 113), 237078#(<= ULTIMATE.start_main_~j~5 114), 237077#(<= ULTIMATE.start_main_~i~5 114), 237076#(<= ULTIMATE.start_main_~i~5 113), 237083#(<= ULTIMATE.start_main_~j~5 109), 237082#(<= ULTIMATE.start_main_~j~5 110), 237081#(<= ULTIMATE.start_main_~j~5 111), 237080#(<= ULTIMATE.start_main_~j~5 112), 237087#(<= ULTIMATE.start_main_~j~5 105), 237086#(<= ULTIMATE.start_main_~j~5 106), 237085#(<= ULTIMATE.start_main_~j~5 107), 237084#(<= ULTIMATE.start_main_~j~5 108), 237091#(<= ULTIMATE.start_main_~j~5 101), 237090#(<= ULTIMATE.start_main_~j~5 102), 237089#(<= ULTIMATE.start_main_~j~5 103), 237088#(<= ULTIMATE.start_main_~j~5 104), 237095#(<= ULTIMATE.start_main_~j~5 97), 237094#(<= ULTIMATE.start_main_~j~5 98), 237093#(<= ULTIMATE.start_main_~j~5 99), 237092#(<= ULTIMATE.start_main_~j~5 100), 237099#(<= ULTIMATE.start_main_~j~5 93), 237098#(<= ULTIMATE.start_main_~j~5 94), 237097#(<= ULTIMATE.start_main_~j~5 95), 237096#(<= ULTIMATE.start_main_~j~5 96), 237103#(<= ULTIMATE.start_main_~j~5 89), 237102#(<= ULTIMATE.start_main_~j~5 90), 237101#(<= ULTIMATE.start_main_~j~5 91), 237100#(<= ULTIMATE.start_main_~j~5 92), 237107#(<= ULTIMATE.start_main_~j~5 85), 237106#(<= ULTIMATE.start_main_~j~5 86), 237105#(<= ULTIMATE.start_main_~j~5 87), 237104#(<= ULTIMATE.start_main_~j~5 88), 237111#(<= ULTIMATE.start_main_~j~5 81), 237110#(<= ULTIMATE.start_main_~j~5 82), 237109#(<= ULTIMATE.start_main_~j~5 83), 237108#(<= ULTIMATE.start_main_~j~5 84), 237115#(<= ULTIMATE.start_main_~j~5 77), 237114#(<= ULTIMATE.start_main_~j~5 78), 237113#(<= ULTIMATE.start_main_~j~5 79), 237112#(<= ULTIMATE.start_main_~j~5 80), 237119#(<= ULTIMATE.start_main_~j~5 73), 237118#(<= ULTIMATE.start_main_~j~5 74), 237117#(<= ULTIMATE.start_main_~j~5 75), 237116#(<= ULTIMATE.start_main_~j~5 76), 237123#(<= ULTIMATE.start_main_~j~5 69), 237122#(<= ULTIMATE.start_main_~j~5 70), 237121#(<= ULTIMATE.start_main_~j~5 71), 237120#(<= ULTIMATE.start_main_~j~5 72), 237127#(<= ULTIMATE.start_main_~j~5 65), 237126#(<= ULTIMATE.start_main_~j~5 66), 237125#(<= ULTIMATE.start_main_~j~5 67), 237124#(<= ULTIMATE.start_main_~j~5 68), 237131#(<= ULTIMATE.start_main_~j~5 61), 237130#(<= ULTIMATE.start_main_~j~5 62), 237129#(<= ULTIMATE.start_main_~j~5 63), 237128#(<= ULTIMATE.start_main_~j~5 64), 237135#(<= ULTIMATE.start_main_~j~5 57), 237134#(<= ULTIMATE.start_main_~j~5 58), 237133#(<= ULTIMATE.start_main_~j~5 59), 237132#(<= ULTIMATE.start_main_~j~5 60), 237139#(<= ULTIMATE.start_main_~j~5 53), 237138#(<= ULTIMATE.start_main_~j~5 54), 237137#(<= ULTIMATE.start_main_~j~5 55), 237136#(<= ULTIMATE.start_main_~j~5 56), 237143#(<= ULTIMATE.start_main_~j~5 49), 237142#(<= ULTIMATE.start_main_~j~5 50), 237141#(<= ULTIMATE.start_main_~j~5 51), 237140#(<= ULTIMATE.start_main_~j~5 52), 237147#(<= ULTIMATE.start_main_~j~5 45), 237146#(<= ULTIMATE.start_main_~j~5 46), 237145#(<= ULTIMATE.start_main_~j~5 47), 237144#(<= ULTIMATE.start_main_~j~5 48), 237151#(<= ULTIMATE.start_main_~j~5 41), 237150#(<= ULTIMATE.start_main_~j~5 42), 237149#(<= ULTIMATE.start_main_~j~5 43), 237148#(<= ULTIMATE.start_main_~j~5 44), 237155#(<= ULTIMATE.start_main_~j~5 37), 237154#(<= ULTIMATE.start_main_~j~5 38), 237153#(<= ULTIMATE.start_main_~j~5 39), 237152#(<= ULTIMATE.start_main_~j~5 40), 237159#(<= ULTIMATE.start_main_~j~5 33), 237158#(<= ULTIMATE.start_main_~j~5 34), 237157#(<= ULTIMATE.start_main_~j~5 35), 237156#(<= ULTIMATE.start_main_~j~5 36), 237163#(<= ULTIMATE.start_main_~j~5 29), 237162#(<= ULTIMATE.start_main_~j~5 30), 237161#(<= ULTIMATE.start_main_~j~5 31), 237160#(<= ULTIMATE.start_main_~j~5 32), 237167#(<= ULTIMATE.start_main_~j~5 25), 237166#(<= ULTIMATE.start_main_~j~5 26), 237165#(<= ULTIMATE.start_main_~j~5 27), 237164#(<= ULTIMATE.start_main_~j~5 28), 237171#(<= ULTIMATE.start_main_~j~5 21), 237170#(<= ULTIMATE.start_main_~j~5 22), 237169#(<= ULTIMATE.start_main_~j~5 23), 237168#(<= ULTIMATE.start_main_~j~5 24), 237175#(<= ULTIMATE.start_main_~j~5 17), 237174#(<= ULTIMATE.start_main_~j~5 18), 237173#(<= ULTIMATE.start_main_~j~5 19), 237172#(<= ULTIMATE.start_main_~j~5 20), 237179#(<= ULTIMATE.start_main_~j~5 13), 237178#(<= ULTIMATE.start_main_~j~5 14), 237177#(<= ULTIMATE.start_main_~j~5 15), 237176#(<= ULTIMATE.start_main_~j~5 16), 237183#(<= ULTIMATE.start_main_~j~5 9), 237182#(<= ULTIMATE.start_main_~j~5 10), 237181#(<= ULTIMATE.start_main_~j~5 11), 237180#(<= ULTIMATE.start_main_~j~5 12), 237187#(<= ULTIMATE.start_main_~j~5 5), 237186#(<= ULTIMATE.start_main_~j~5 6), 237185#(<= ULTIMATE.start_main_~j~5 7), 237184#(<= ULTIMATE.start_main_~j~5 8), 237191#(<= ULTIMATE.start_main_~j~5 1), 237190#(<= ULTIMATE.start_main_~j~5 2), 237189#(<= ULTIMATE.start_main_~j~5 3), 237188#(<= ULTIMATE.start_main_~j~5 4), 237192#(<= ULTIMATE.start_main_~j~5 0), 236963#(<= ULTIMATE.start_main_~i~5 0), 236962#false, 236961#true, 236967#(<= ULTIMATE.start_main_~i~5 4), 236966#(<= ULTIMATE.start_main_~i~5 3), 236965#(<= ULTIMATE.start_main_~i~5 2), 236964#(<= ULTIMATE.start_main_~i~5 1), 236971#(<= ULTIMATE.start_main_~i~5 8), 236970#(<= ULTIMATE.start_main_~i~5 7), 236969#(<= ULTIMATE.start_main_~i~5 6), 236968#(<= ULTIMATE.start_main_~i~5 5), 236975#(<= ULTIMATE.start_main_~i~5 12), 236974#(<= ULTIMATE.start_main_~i~5 11), 236973#(<= ULTIMATE.start_main_~i~5 10), 236972#(<= ULTIMATE.start_main_~i~5 9), 236979#(<= ULTIMATE.start_main_~i~5 16), 236978#(<= ULTIMATE.start_main_~i~5 15), 236977#(<= ULTIMATE.start_main_~i~5 14), 236976#(<= ULTIMATE.start_main_~i~5 13), 236983#(<= ULTIMATE.start_main_~i~5 20), 236982#(<= ULTIMATE.start_main_~i~5 19), 236981#(<= ULTIMATE.start_main_~i~5 18), 236980#(<= ULTIMATE.start_main_~i~5 17), 236987#(<= ULTIMATE.start_main_~i~5 24), 236986#(<= ULTIMATE.start_main_~i~5 23), 236985#(<= ULTIMATE.start_main_~i~5 22), 236984#(<= ULTIMATE.start_main_~i~5 21), 236991#(<= ULTIMATE.start_main_~i~5 28), 236990#(<= ULTIMATE.start_main_~i~5 27), 236989#(<= ULTIMATE.start_main_~i~5 26), 236988#(<= ULTIMATE.start_main_~i~5 25), 236995#(<= ULTIMATE.start_main_~i~5 32), 236994#(<= ULTIMATE.start_main_~i~5 31), 236993#(<= ULTIMATE.start_main_~i~5 30), 236992#(<= ULTIMATE.start_main_~i~5 29), 236999#(<= ULTIMATE.start_main_~i~5 36), 236998#(<= ULTIMATE.start_main_~i~5 35), 236997#(<= ULTIMATE.start_main_~i~5 34), 236996#(<= ULTIMATE.start_main_~i~5 33), 237003#(<= ULTIMATE.start_main_~i~5 40), 237002#(<= ULTIMATE.start_main_~i~5 39), 237001#(<= ULTIMATE.start_main_~i~5 38), 237000#(<= ULTIMATE.start_main_~i~5 37), 237007#(<= ULTIMATE.start_main_~i~5 44), 237006#(<= ULTIMATE.start_main_~i~5 43), 237005#(<= ULTIMATE.start_main_~i~5 42), 237004#(<= ULTIMATE.start_main_~i~5 41), 237011#(<= ULTIMATE.start_main_~i~5 48), 237010#(<= ULTIMATE.start_main_~i~5 47), 237009#(<= ULTIMATE.start_main_~i~5 46), 237008#(<= ULTIMATE.start_main_~i~5 45), 237015#(<= ULTIMATE.start_main_~i~5 52), 237014#(<= ULTIMATE.start_main_~i~5 51), 237013#(<= ULTIMATE.start_main_~i~5 50), 237012#(<= ULTIMATE.start_main_~i~5 49), 237019#(<= ULTIMATE.start_main_~i~5 56), 237018#(<= ULTIMATE.start_main_~i~5 55), 237017#(<= ULTIMATE.start_main_~i~5 54), 237016#(<= ULTIMATE.start_main_~i~5 53), 237023#(<= ULTIMATE.start_main_~i~5 60), 237022#(<= ULTIMATE.start_main_~i~5 59), 237021#(<= ULTIMATE.start_main_~i~5 58), 237020#(<= ULTIMATE.start_main_~i~5 57), 237027#(<= ULTIMATE.start_main_~i~5 64), 237026#(<= ULTIMATE.start_main_~i~5 63), 237025#(<= ULTIMATE.start_main_~i~5 62), 237024#(<= ULTIMATE.start_main_~i~5 61), 237031#(<= ULTIMATE.start_main_~i~5 68), 237030#(<= ULTIMATE.start_main_~i~5 67), 237029#(<= ULTIMATE.start_main_~i~5 66), 237028#(<= ULTIMATE.start_main_~i~5 65), 237035#(<= ULTIMATE.start_main_~i~5 72), 237034#(<= ULTIMATE.start_main_~i~5 71), 237033#(<= ULTIMATE.start_main_~i~5 70), 237032#(<= ULTIMATE.start_main_~i~5 69), 237039#(<= ULTIMATE.start_main_~i~5 76), 237038#(<= ULTIMATE.start_main_~i~5 75), 237037#(<= ULTIMATE.start_main_~i~5 74), 237036#(<= ULTIMATE.start_main_~i~5 73), 237043#(<= ULTIMATE.start_main_~i~5 80), 237042#(<= ULTIMATE.start_main_~i~5 79), 237041#(<= ULTIMATE.start_main_~i~5 78), 237040#(<= ULTIMATE.start_main_~i~5 77), 237047#(<= ULTIMATE.start_main_~i~5 84), 237046#(<= ULTIMATE.start_main_~i~5 83), 237045#(<= ULTIMATE.start_main_~i~5 82), 237044#(<= ULTIMATE.start_main_~i~5 81), 237051#(<= ULTIMATE.start_main_~i~5 88), 237050#(<= ULTIMATE.start_main_~i~5 87), 237049#(<= ULTIMATE.start_main_~i~5 86), 237048#(<= ULTIMATE.start_main_~i~5 85), 237055#(<= ULTIMATE.start_main_~i~5 92), 237054#(<= ULTIMATE.start_main_~i~5 91), 237053#(<= ULTIMATE.start_main_~i~5 90), 237052#(<= ULTIMATE.start_main_~i~5 89)] [2018-07-23 13:44:22,155 INFO L134 CoverageAnalysis]: Checked inductivity of 19665 backedges. 13110 proven. 6555 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:22,156 INFO L450 AbstractCegarLoop]: Interpolant automaton has 232 states [2018-07-23 13:44:22,157 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 232 interpolants. [2018-07-23 13:44:22,158 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13571, Invalid=40021, Unknown=0, NotChecked=0, Total=53592 [2018-07-23 13:44:22,158 INFO L87 Difference]: Start difference. First operand 348 states and 349 transitions. Second operand 232 states. [2018-07-23 13:44:23,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:44:23,644 INFO L93 Difference]: Finished difference Result 582 states and 584 transitions. [2018-07-23 13:44:23,644 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 232 states. [2018-07-23 13:44:23,644 INFO L78 Accepts]: Start accepts. Automaton has 232 states. Word has length 347 [2018-07-23 13:44:23,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:44:23,645 INFO L225 Difference]: With dead ends: 582 [2018-07-23 13:44:23,645 INFO L226 Difference]: Without dead ends: 349 [2018-07-23 13:44:23,651 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 345 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19551 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=27141, Invalid=92921, Unknown=0, NotChecked=0, Total=120062 [2018-07-23 13:44:23,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2018-07-23 13:44:23,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2018-07-23 13:44:23,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2018-07-23 13:44:23,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 350 transitions. [2018-07-23 13:44:23,700 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 350 transitions. Word has length 347 [2018-07-23 13:44:23,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:44:23,701 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 350 transitions. [2018-07-23 13:44:23,701 INFO L472 AbstractCegarLoop]: Interpolant automaton has 232 states. [2018-07-23 13:44:23,701 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 350 transitions. [2018-07-23 13:44:23,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2018-07-23 13:44:23,702 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:44:23,702 INFO L357 BasicCegarLoop]: trace histogram [115, 115, 114, 1, 1, 1, 1] [2018-07-23 13:44:23,702 INFO L414 AbstractCegarLoop]: === Iteration 230 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:44:23,702 INFO L82 PathProgramCache]: Analyzing trace with hash -970702126, now seen corresponding path program 228 times [2018-07-23 13:44:23,702 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:44:24,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:44:24,565 INFO L134 CoverageAnalysis]: Checked inductivity of 19780 backedges. 6670 proven. 13110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:24,566 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:44:24,566 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [118] total 118 [2018-07-23 13:44:24,566 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:44:24,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:24,566 INFO L185 omatonBuilderFactory]: Interpolants [239363#(<= 76 ULTIMATE.start_main_~k~5), 239362#(<= 75 ULTIMATE.start_main_~k~5), 239361#(<= 74 ULTIMATE.start_main_~k~5), 239360#(<= 73 ULTIMATE.start_main_~k~5), 239367#(<= 80 ULTIMATE.start_main_~k~5), 239366#(<= 79 ULTIMATE.start_main_~k~5), 239365#(<= 78 ULTIMATE.start_main_~k~5), 239364#(<= 77 ULTIMATE.start_main_~k~5), 239371#(<= 84 ULTIMATE.start_main_~k~5), 239370#(<= 83 ULTIMATE.start_main_~k~5), 239369#(<= 82 ULTIMATE.start_main_~k~5), 239368#(<= 81 ULTIMATE.start_main_~k~5), 239375#(<= 88 ULTIMATE.start_main_~k~5), 239374#(<= 87 ULTIMATE.start_main_~k~5), 239373#(<= 86 ULTIMATE.start_main_~k~5), 239372#(<= 85 ULTIMATE.start_main_~k~5), 239379#(<= 92 ULTIMATE.start_main_~k~5), 239378#(<= 91 ULTIMATE.start_main_~k~5), 239377#(<= 90 ULTIMATE.start_main_~k~5), 239376#(<= 89 ULTIMATE.start_main_~k~5), 239383#(<= 96 ULTIMATE.start_main_~k~5), 239382#(<= 95 ULTIMATE.start_main_~k~5), 239381#(<= 94 ULTIMATE.start_main_~k~5), 239380#(<= 93 ULTIMATE.start_main_~k~5), 239387#(<= 100 ULTIMATE.start_main_~k~5), 239386#(<= 99 ULTIMATE.start_main_~k~5), 239385#(<= 98 ULTIMATE.start_main_~k~5), 239384#(<= 97 ULTIMATE.start_main_~k~5), 239391#(<= 104 ULTIMATE.start_main_~k~5), 239390#(<= 103 ULTIMATE.start_main_~k~5), 239389#(<= 102 ULTIMATE.start_main_~k~5), 239388#(<= 101 ULTIMATE.start_main_~k~5), 239395#(<= 108 ULTIMATE.start_main_~k~5), 239394#(<= 107 ULTIMATE.start_main_~k~5), 239393#(<= 106 ULTIMATE.start_main_~k~5), 239392#(<= 105 ULTIMATE.start_main_~k~5), 239399#(<= 112 ULTIMATE.start_main_~k~5), 239398#(<= 111 ULTIMATE.start_main_~k~5), 239397#(<= 110 ULTIMATE.start_main_~k~5), 239396#(<= 109 ULTIMATE.start_main_~k~5), 239403#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 239402#(<= 115 ULTIMATE.start_main_~k~5), 239401#(<= 114 ULTIMATE.start_main_~k~5), 239400#(<= 113 ULTIMATE.start_main_~k~5), 239287#(<= 0 ULTIMATE.start_main_~k~5), 239286#false, 239285#true, 239291#(<= 4 ULTIMATE.start_main_~k~5), 239290#(<= 3 ULTIMATE.start_main_~k~5), 239289#(<= 2 ULTIMATE.start_main_~k~5), 239288#(<= 1 ULTIMATE.start_main_~k~5), 239295#(<= 8 ULTIMATE.start_main_~k~5), 239294#(<= 7 ULTIMATE.start_main_~k~5), 239293#(<= 6 ULTIMATE.start_main_~k~5), 239292#(<= 5 ULTIMATE.start_main_~k~5), 239299#(<= 12 ULTIMATE.start_main_~k~5), 239298#(<= 11 ULTIMATE.start_main_~k~5), 239297#(<= 10 ULTIMATE.start_main_~k~5), 239296#(<= 9 ULTIMATE.start_main_~k~5), 239303#(<= 16 ULTIMATE.start_main_~k~5), 239302#(<= 15 ULTIMATE.start_main_~k~5), 239301#(<= 14 ULTIMATE.start_main_~k~5), 239300#(<= 13 ULTIMATE.start_main_~k~5), 239307#(<= 20 ULTIMATE.start_main_~k~5), 239306#(<= 19 ULTIMATE.start_main_~k~5), 239305#(<= 18 ULTIMATE.start_main_~k~5), 239304#(<= 17 ULTIMATE.start_main_~k~5), 239311#(<= 24 ULTIMATE.start_main_~k~5), 239310#(<= 23 ULTIMATE.start_main_~k~5), 239309#(<= 22 ULTIMATE.start_main_~k~5), 239308#(<= 21 ULTIMATE.start_main_~k~5), 239315#(<= 28 ULTIMATE.start_main_~k~5), 239314#(<= 27 ULTIMATE.start_main_~k~5), 239313#(<= 26 ULTIMATE.start_main_~k~5), 239312#(<= 25 ULTIMATE.start_main_~k~5), 239319#(<= 32 ULTIMATE.start_main_~k~5), 239318#(<= 31 ULTIMATE.start_main_~k~5), 239317#(<= 30 ULTIMATE.start_main_~k~5), 239316#(<= 29 ULTIMATE.start_main_~k~5), 239323#(<= 36 ULTIMATE.start_main_~k~5), 239322#(<= 35 ULTIMATE.start_main_~k~5), 239321#(<= 34 ULTIMATE.start_main_~k~5), 239320#(<= 33 ULTIMATE.start_main_~k~5), 239327#(<= 40 ULTIMATE.start_main_~k~5), 239326#(<= 39 ULTIMATE.start_main_~k~5), 239325#(<= 38 ULTIMATE.start_main_~k~5), 239324#(<= 37 ULTIMATE.start_main_~k~5), 239331#(<= 44 ULTIMATE.start_main_~k~5), 239330#(<= 43 ULTIMATE.start_main_~k~5), 239329#(<= 42 ULTIMATE.start_main_~k~5), 239328#(<= 41 ULTIMATE.start_main_~k~5), 239335#(<= 48 ULTIMATE.start_main_~k~5), 239334#(<= 47 ULTIMATE.start_main_~k~5), 239333#(<= 46 ULTIMATE.start_main_~k~5), 239332#(<= 45 ULTIMATE.start_main_~k~5), 239339#(<= 52 ULTIMATE.start_main_~k~5), 239338#(<= 51 ULTIMATE.start_main_~k~5), 239337#(<= 50 ULTIMATE.start_main_~k~5), 239336#(<= 49 ULTIMATE.start_main_~k~5), 239343#(<= 56 ULTIMATE.start_main_~k~5), 239342#(<= 55 ULTIMATE.start_main_~k~5), 239341#(<= 54 ULTIMATE.start_main_~k~5), 239340#(<= 53 ULTIMATE.start_main_~k~5), 239347#(<= 60 ULTIMATE.start_main_~k~5), 239346#(<= 59 ULTIMATE.start_main_~k~5), 239345#(<= 58 ULTIMATE.start_main_~k~5), 239344#(<= 57 ULTIMATE.start_main_~k~5), 239351#(<= 64 ULTIMATE.start_main_~k~5), 239350#(<= 63 ULTIMATE.start_main_~k~5), 239349#(<= 62 ULTIMATE.start_main_~k~5), 239348#(<= 61 ULTIMATE.start_main_~k~5), 239355#(<= 68 ULTIMATE.start_main_~k~5), 239354#(<= 67 ULTIMATE.start_main_~k~5), 239353#(<= 66 ULTIMATE.start_main_~k~5), 239352#(<= 65 ULTIMATE.start_main_~k~5), 239359#(<= 72 ULTIMATE.start_main_~k~5), 239358#(<= 71 ULTIMATE.start_main_~k~5), 239357#(<= 70 ULTIMATE.start_main_~k~5), 239356#(<= 69 ULTIMATE.start_main_~k~5)] [2018-07-23 13:44:24,567 INFO L134 CoverageAnalysis]: Checked inductivity of 19780 backedges. 6670 proven. 13110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:24,567 INFO L450 AbstractCegarLoop]: Interpolant automaton has 119 states [2018-07-23 13:44:24,568 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 119 interpolants. [2018-07-23 13:44:24,568 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6905, Invalid=7137, Unknown=0, NotChecked=0, Total=14042 [2018-07-23 13:44:24,568 INFO L87 Difference]: Start difference. First operand 349 states and 350 transitions. Second operand 119 states. [2018-07-23 13:44:25,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:44:25,130 INFO L93 Difference]: Finished difference Result 357 states and 358 transitions. [2018-07-23 13:44:25,130 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 234 states. [2018-07-23 13:44:25,130 INFO L78 Accepts]: Start accepts. Automaton has 119 states. Word has length 348 [2018-07-23 13:44:25,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:44:25,131 INFO L225 Difference]: With dead ends: 357 [2018-07-23 13:44:25,131 INFO L226 Difference]: Without dead ends: 355 [2018-07-23 13:44:25,134 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 233 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13340 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=20709, Invalid=34281, Unknown=0, NotChecked=0, Total=54990 [2018-07-23 13:44:25,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2018-07-23 13:44:25,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 351. [2018-07-23 13:44:25,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 351 states. [2018-07-23 13:44:25,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 352 transitions. [2018-07-23 13:44:25,184 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 352 transitions. Word has length 348 [2018-07-23 13:44:25,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:44:25,184 INFO L471 AbstractCegarLoop]: Abstraction has 351 states and 352 transitions. [2018-07-23 13:44:25,184 INFO L472 AbstractCegarLoop]: Interpolant automaton has 119 states. [2018-07-23 13:44:25,184 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 352 transitions. [2018-07-23 13:44:25,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2018-07-23 13:44:25,185 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:44:25,185 INFO L357 BasicCegarLoop]: trace histogram [116, 115, 115, 1, 1, 1, 1] [2018-07-23 13:44:25,185 INFO L414 AbstractCegarLoop]: === Iteration 231 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:44:25,185 INFO L82 PathProgramCache]: Analyzing trace with hash -836773830, now seen corresponding path program 229 times [2018-07-23 13:44:25,185 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:44:25,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:44:26,388 INFO L134 CoverageAnalysis]: Checked inductivity of 20010 backedges. 13340 proven. 6670 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:26,388 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:44:26,388 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [233] total 233 [2018-07-23 13:44:26,388 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:44:26,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:26,389 INFO L185 omatonBuilderFactory]: Interpolants [241155#(<= ULTIMATE.start_main_~i~5 101), 241154#(<= ULTIMATE.start_main_~i~5 100), 241153#(<= ULTIMATE.start_main_~i~5 99), 241152#(<= ULTIMATE.start_main_~i~5 98), 241159#(<= ULTIMATE.start_main_~i~5 105), 241158#(<= ULTIMATE.start_main_~i~5 104), 241157#(<= ULTIMATE.start_main_~i~5 103), 241156#(<= ULTIMATE.start_main_~i~5 102), 241163#(<= ULTIMATE.start_main_~i~5 109), 241162#(<= ULTIMATE.start_main_~i~5 108), 241161#(<= ULTIMATE.start_main_~i~5 107), 241160#(<= ULTIMATE.start_main_~i~5 106), 241167#(<= ULTIMATE.start_main_~i~5 113), 241166#(<= ULTIMATE.start_main_~i~5 112), 241165#(<= ULTIMATE.start_main_~i~5 111), 241164#(<= ULTIMATE.start_main_~i~5 110), 241171#(<= ULTIMATE.start_main_~j~5 114), 241170#(<= ULTIMATE.start_main_~j~5 115), 241169#(<= ULTIMATE.start_main_~i~5 115), 241168#(<= ULTIMATE.start_main_~i~5 114), 241175#(<= ULTIMATE.start_main_~j~5 110), 241174#(<= ULTIMATE.start_main_~j~5 111), 241173#(<= ULTIMATE.start_main_~j~5 112), 241172#(<= ULTIMATE.start_main_~j~5 113), 241179#(<= ULTIMATE.start_main_~j~5 106), 241178#(<= ULTIMATE.start_main_~j~5 107), 241177#(<= ULTIMATE.start_main_~j~5 108), 241176#(<= ULTIMATE.start_main_~j~5 109), 241183#(<= ULTIMATE.start_main_~j~5 102), 241182#(<= ULTIMATE.start_main_~j~5 103), 241181#(<= ULTIMATE.start_main_~j~5 104), 241180#(<= ULTIMATE.start_main_~j~5 105), 241187#(<= ULTIMATE.start_main_~j~5 98), 241186#(<= ULTIMATE.start_main_~j~5 99), 241185#(<= ULTIMATE.start_main_~j~5 100), 241184#(<= ULTIMATE.start_main_~j~5 101), 241191#(<= ULTIMATE.start_main_~j~5 94), 241190#(<= ULTIMATE.start_main_~j~5 95), 241189#(<= ULTIMATE.start_main_~j~5 96), 241188#(<= ULTIMATE.start_main_~j~5 97), 241195#(<= ULTIMATE.start_main_~j~5 90), 241194#(<= ULTIMATE.start_main_~j~5 91), 241193#(<= ULTIMATE.start_main_~j~5 92), 241192#(<= ULTIMATE.start_main_~j~5 93), 241199#(<= ULTIMATE.start_main_~j~5 86), 241198#(<= ULTIMATE.start_main_~j~5 87), 241197#(<= ULTIMATE.start_main_~j~5 88), 241196#(<= ULTIMATE.start_main_~j~5 89), 241203#(<= ULTIMATE.start_main_~j~5 82), 241202#(<= ULTIMATE.start_main_~j~5 83), 241201#(<= ULTIMATE.start_main_~j~5 84), 241200#(<= ULTIMATE.start_main_~j~5 85), 241207#(<= ULTIMATE.start_main_~j~5 78), 241206#(<= ULTIMATE.start_main_~j~5 79), 241205#(<= ULTIMATE.start_main_~j~5 80), 241204#(<= ULTIMATE.start_main_~j~5 81), 241211#(<= ULTIMATE.start_main_~j~5 74), 241210#(<= ULTIMATE.start_main_~j~5 75), 241209#(<= ULTIMATE.start_main_~j~5 76), 241208#(<= ULTIMATE.start_main_~j~5 77), 241215#(<= ULTIMATE.start_main_~j~5 70), 241214#(<= ULTIMATE.start_main_~j~5 71), 241213#(<= ULTIMATE.start_main_~j~5 72), 241212#(<= ULTIMATE.start_main_~j~5 73), 241219#(<= ULTIMATE.start_main_~j~5 66), 241218#(<= ULTIMATE.start_main_~j~5 67), 241217#(<= ULTIMATE.start_main_~j~5 68), 241216#(<= ULTIMATE.start_main_~j~5 69), 241223#(<= ULTIMATE.start_main_~j~5 62), 241222#(<= ULTIMATE.start_main_~j~5 63), 241221#(<= ULTIMATE.start_main_~j~5 64), 241220#(<= ULTIMATE.start_main_~j~5 65), 241227#(<= ULTIMATE.start_main_~j~5 58), 241226#(<= ULTIMATE.start_main_~j~5 59), 241225#(<= ULTIMATE.start_main_~j~5 60), 241224#(<= ULTIMATE.start_main_~j~5 61), 241231#(<= ULTIMATE.start_main_~j~5 54), 241230#(<= ULTIMATE.start_main_~j~5 55), 241229#(<= ULTIMATE.start_main_~j~5 56), 241228#(<= ULTIMATE.start_main_~j~5 57), 241235#(<= ULTIMATE.start_main_~j~5 50), 241234#(<= ULTIMATE.start_main_~j~5 51), 241233#(<= ULTIMATE.start_main_~j~5 52), 241232#(<= ULTIMATE.start_main_~j~5 53), 241239#(<= ULTIMATE.start_main_~j~5 46), 241238#(<= ULTIMATE.start_main_~j~5 47), 241237#(<= ULTIMATE.start_main_~j~5 48), 241236#(<= ULTIMATE.start_main_~j~5 49), 241243#(<= ULTIMATE.start_main_~j~5 42), 241242#(<= ULTIMATE.start_main_~j~5 43), 241241#(<= ULTIMATE.start_main_~j~5 44), 241240#(<= ULTIMATE.start_main_~j~5 45), 241247#(<= ULTIMATE.start_main_~j~5 38), 241246#(<= ULTIMATE.start_main_~j~5 39), 241245#(<= ULTIMATE.start_main_~j~5 40), 241244#(<= ULTIMATE.start_main_~j~5 41), 241251#(<= ULTIMATE.start_main_~j~5 34), 241250#(<= ULTIMATE.start_main_~j~5 35), 241249#(<= ULTIMATE.start_main_~j~5 36), 241248#(<= ULTIMATE.start_main_~j~5 37), 241255#(<= ULTIMATE.start_main_~j~5 30), 241254#(<= ULTIMATE.start_main_~j~5 31), 241253#(<= ULTIMATE.start_main_~j~5 32), 241252#(<= ULTIMATE.start_main_~j~5 33), 241259#(<= ULTIMATE.start_main_~j~5 26), 241258#(<= ULTIMATE.start_main_~j~5 27), 241257#(<= ULTIMATE.start_main_~j~5 28), 241256#(<= ULTIMATE.start_main_~j~5 29), 241263#(<= ULTIMATE.start_main_~j~5 22), 241262#(<= ULTIMATE.start_main_~j~5 23), 241261#(<= ULTIMATE.start_main_~j~5 24), 241260#(<= ULTIMATE.start_main_~j~5 25), 241267#(<= ULTIMATE.start_main_~j~5 18), 241266#(<= ULTIMATE.start_main_~j~5 19), 241265#(<= ULTIMATE.start_main_~j~5 20), 241264#(<= ULTIMATE.start_main_~j~5 21), 241271#(<= ULTIMATE.start_main_~j~5 14), 241270#(<= ULTIMATE.start_main_~j~5 15), 241269#(<= ULTIMATE.start_main_~j~5 16), 241268#(<= ULTIMATE.start_main_~j~5 17), 241275#(<= ULTIMATE.start_main_~j~5 10), 241274#(<= ULTIMATE.start_main_~j~5 11), 241273#(<= ULTIMATE.start_main_~j~5 12), 241272#(<= ULTIMATE.start_main_~j~5 13), 241279#(<= ULTIMATE.start_main_~j~5 6), 241278#(<= ULTIMATE.start_main_~j~5 7), 241277#(<= ULTIMATE.start_main_~j~5 8), 241276#(<= ULTIMATE.start_main_~j~5 9), 241283#(<= ULTIMATE.start_main_~j~5 2), 241282#(<= ULTIMATE.start_main_~j~5 3), 241281#(<= ULTIMATE.start_main_~j~5 4), 241280#(<= ULTIMATE.start_main_~j~5 5), 241285#(<= ULTIMATE.start_main_~j~5 0), 241284#(<= ULTIMATE.start_main_~j~5 1), 241055#(<= ULTIMATE.start_main_~i~5 1), 241054#(<= ULTIMATE.start_main_~i~5 0), 241053#false, 241052#true, 241059#(<= ULTIMATE.start_main_~i~5 5), 241058#(<= ULTIMATE.start_main_~i~5 4), 241057#(<= ULTIMATE.start_main_~i~5 3), 241056#(<= ULTIMATE.start_main_~i~5 2), 241063#(<= ULTIMATE.start_main_~i~5 9), 241062#(<= ULTIMATE.start_main_~i~5 8), 241061#(<= ULTIMATE.start_main_~i~5 7), 241060#(<= ULTIMATE.start_main_~i~5 6), 241067#(<= ULTIMATE.start_main_~i~5 13), 241066#(<= ULTIMATE.start_main_~i~5 12), 241065#(<= ULTIMATE.start_main_~i~5 11), 241064#(<= ULTIMATE.start_main_~i~5 10), 241071#(<= ULTIMATE.start_main_~i~5 17), 241070#(<= ULTIMATE.start_main_~i~5 16), 241069#(<= ULTIMATE.start_main_~i~5 15), 241068#(<= ULTIMATE.start_main_~i~5 14), 241075#(<= ULTIMATE.start_main_~i~5 21), 241074#(<= ULTIMATE.start_main_~i~5 20), 241073#(<= ULTIMATE.start_main_~i~5 19), 241072#(<= ULTIMATE.start_main_~i~5 18), 241079#(<= ULTIMATE.start_main_~i~5 25), 241078#(<= ULTIMATE.start_main_~i~5 24), 241077#(<= ULTIMATE.start_main_~i~5 23), 241076#(<= ULTIMATE.start_main_~i~5 22), 241083#(<= ULTIMATE.start_main_~i~5 29), 241082#(<= ULTIMATE.start_main_~i~5 28), 241081#(<= ULTIMATE.start_main_~i~5 27), 241080#(<= ULTIMATE.start_main_~i~5 26), 241087#(<= ULTIMATE.start_main_~i~5 33), 241086#(<= ULTIMATE.start_main_~i~5 32), 241085#(<= ULTIMATE.start_main_~i~5 31), 241084#(<= ULTIMATE.start_main_~i~5 30), 241091#(<= ULTIMATE.start_main_~i~5 37), 241090#(<= ULTIMATE.start_main_~i~5 36), 241089#(<= ULTIMATE.start_main_~i~5 35), 241088#(<= ULTIMATE.start_main_~i~5 34), 241095#(<= ULTIMATE.start_main_~i~5 41), 241094#(<= ULTIMATE.start_main_~i~5 40), 241093#(<= ULTIMATE.start_main_~i~5 39), 241092#(<= ULTIMATE.start_main_~i~5 38), 241099#(<= ULTIMATE.start_main_~i~5 45), 241098#(<= ULTIMATE.start_main_~i~5 44), 241097#(<= ULTIMATE.start_main_~i~5 43), 241096#(<= ULTIMATE.start_main_~i~5 42), 241103#(<= ULTIMATE.start_main_~i~5 49), 241102#(<= ULTIMATE.start_main_~i~5 48), 241101#(<= ULTIMATE.start_main_~i~5 47), 241100#(<= ULTIMATE.start_main_~i~5 46), 241107#(<= ULTIMATE.start_main_~i~5 53), 241106#(<= ULTIMATE.start_main_~i~5 52), 241105#(<= ULTIMATE.start_main_~i~5 51), 241104#(<= ULTIMATE.start_main_~i~5 50), 241111#(<= ULTIMATE.start_main_~i~5 57), 241110#(<= ULTIMATE.start_main_~i~5 56), 241109#(<= ULTIMATE.start_main_~i~5 55), 241108#(<= ULTIMATE.start_main_~i~5 54), 241115#(<= ULTIMATE.start_main_~i~5 61), 241114#(<= ULTIMATE.start_main_~i~5 60), 241113#(<= ULTIMATE.start_main_~i~5 59), 241112#(<= ULTIMATE.start_main_~i~5 58), 241119#(<= ULTIMATE.start_main_~i~5 65), 241118#(<= ULTIMATE.start_main_~i~5 64), 241117#(<= ULTIMATE.start_main_~i~5 63), 241116#(<= ULTIMATE.start_main_~i~5 62), 241123#(<= ULTIMATE.start_main_~i~5 69), 241122#(<= ULTIMATE.start_main_~i~5 68), 241121#(<= ULTIMATE.start_main_~i~5 67), 241120#(<= ULTIMATE.start_main_~i~5 66), 241127#(<= ULTIMATE.start_main_~i~5 73), 241126#(<= ULTIMATE.start_main_~i~5 72), 241125#(<= ULTIMATE.start_main_~i~5 71), 241124#(<= ULTIMATE.start_main_~i~5 70), 241131#(<= ULTIMATE.start_main_~i~5 77), 241130#(<= ULTIMATE.start_main_~i~5 76), 241129#(<= ULTIMATE.start_main_~i~5 75), 241128#(<= ULTIMATE.start_main_~i~5 74), 241135#(<= ULTIMATE.start_main_~i~5 81), 241134#(<= ULTIMATE.start_main_~i~5 80), 241133#(<= ULTIMATE.start_main_~i~5 79), 241132#(<= ULTIMATE.start_main_~i~5 78), 241139#(<= ULTIMATE.start_main_~i~5 85), 241138#(<= ULTIMATE.start_main_~i~5 84), 241137#(<= ULTIMATE.start_main_~i~5 83), 241136#(<= ULTIMATE.start_main_~i~5 82), 241143#(<= ULTIMATE.start_main_~i~5 89), 241142#(<= ULTIMATE.start_main_~i~5 88), 241141#(<= ULTIMATE.start_main_~i~5 87), 241140#(<= ULTIMATE.start_main_~i~5 86), 241147#(<= ULTIMATE.start_main_~i~5 93), 241146#(<= ULTIMATE.start_main_~i~5 92), 241145#(<= ULTIMATE.start_main_~i~5 91), 241144#(<= ULTIMATE.start_main_~i~5 90), 241151#(<= ULTIMATE.start_main_~i~5 97), 241150#(<= ULTIMATE.start_main_~i~5 96), 241149#(<= ULTIMATE.start_main_~i~5 95), 241148#(<= ULTIMATE.start_main_~i~5 94)] [2018-07-23 13:44:26,390 INFO L134 CoverageAnalysis]: Checked inductivity of 20010 backedges. 13340 proven. 6670 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:26,391 INFO L450 AbstractCegarLoop]: Interpolant automaton has 234 states [2018-07-23 13:44:26,393 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 234 interpolants. [2018-07-23 13:44:26,397 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13805, Invalid=40717, Unknown=0, NotChecked=0, Total=54522 [2018-07-23 13:44:26,397 INFO L87 Difference]: Start difference. First operand 351 states and 352 transitions. Second operand 234 states. [2018-07-23 13:44:28,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:44:28,033 INFO L93 Difference]: Finished difference Result 587 states and 589 transitions. [2018-07-23 13:44:28,033 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 234 states. [2018-07-23 13:44:28,033 INFO L78 Accepts]: Start accepts. Automaton has 234 states. Word has length 350 [2018-07-23 13:44:28,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:44:28,034 INFO L225 Difference]: With dead ends: 587 [2018-07-23 13:44:28,034 INFO L226 Difference]: Without dead ends: 352 [2018-07-23 13:44:28,040 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 348 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19895 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=27609, Invalid=94541, Unknown=0, NotChecked=0, Total=122150 [2018-07-23 13:44:28,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2018-07-23 13:44:28,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 352. [2018-07-23 13:44:28,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 352 states. [2018-07-23 13:44:28,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 353 transitions. [2018-07-23 13:44:28,088 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 353 transitions. Word has length 350 [2018-07-23 13:44:28,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:44:28,089 INFO L471 AbstractCegarLoop]: Abstraction has 352 states and 353 transitions. [2018-07-23 13:44:28,089 INFO L472 AbstractCegarLoop]: Interpolant automaton has 234 states. [2018-07-23 13:44:28,089 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 353 transitions. [2018-07-23 13:44:28,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2018-07-23 13:44:28,090 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:44:28,090 INFO L357 BasicCegarLoop]: trace histogram [116, 116, 115, 1, 1, 1, 1] [2018-07-23 13:44:28,090 INFO L414 AbstractCegarLoop]: === Iteration 232 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:44:28,090 INFO L82 PathProgramCache]: Analyzing trace with hash 1962099187, now seen corresponding path program 230 times [2018-07-23 13:44:28,090 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:44:28,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:44:28,906 INFO L134 CoverageAnalysis]: Checked inductivity of 20126 backedges. 6786 proven. 13340 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:28,906 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:44:28,906 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [119] total 119 [2018-07-23 13:44:28,907 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:44:28,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:28,907 INFO L185 omatonBuilderFactory]: Interpolants [243459#(<= 61 ULTIMATE.start_main_~k~5), 243458#(<= 60 ULTIMATE.start_main_~k~5), 243457#(<= 59 ULTIMATE.start_main_~k~5), 243456#(<= 58 ULTIMATE.start_main_~k~5), 243463#(<= 65 ULTIMATE.start_main_~k~5), 243462#(<= 64 ULTIMATE.start_main_~k~5), 243461#(<= 63 ULTIMATE.start_main_~k~5), 243460#(<= 62 ULTIMATE.start_main_~k~5), 243467#(<= 69 ULTIMATE.start_main_~k~5), 243466#(<= 68 ULTIMATE.start_main_~k~5), 243465#(<= 67 ULTIMATE.start_main_~k~5), 243464#(<= 66 ULTIMATE.start_main_~k~5), 243471#(<= 73 ULTIMATE.start_main_~k~5), 243470#(<= 72 ULTIMATE.start_main_~k~5), 243469#(<= 71 ULTIMATE.start_main_~k~5), 243468#(<= 70 ULTIMATE.start_main_~k~5), 243475#(<= 77 ULTIMATE.start_main_~k~5), 243474#(<= 76 ULTIMATE.start_main_~k~5), 243473#(<= 75 ULTIMATE.start_main_~k~5), 243472#(<= 74 ULTIMATE.start_main_~k~5), 243479#(<= 81 ULTIMATE.start_main_~k~5), 243478#(<= 80 ULTIMATE.start_main_~k~5), 243477#(<= 79 ULTIMATE.start_main_~k~5), 243476#(<= 78 ULTIMATE.start_main_~k~5), 243483#(<= 85 ULTIMATE.start_main_~k~5), 243482#(<= 84 ULTIMATE.start_main_~k~5), 243481#(<= 83 ULTIMATE.start_main_~k~5), 243480#(<= 82 ULTIMATE.start_main_~k~5), 243487#(<= 89 ULTIMATE.start_main_~k~5), 243486#(<= 88 ULTIMATE.start_main_~k~5), 243485#(<= 87 ULTIMATE.start_main_~k~5), 243484#(<= 86 ULTIMATE.start_main_~k~5), 243491#(<= 93 ULTIMATE.start_main_~k~5), 243490#(<= 92 ULTIMATE.start_main_~k~5), 243489#(<= 91 ULTIMATE.start_main_~k~5), 243488#(<= 90 ULTIMATE.start_main_~k~5), 243495#(<= 97 ULTIMATE.start_main_~k~5), 243494#(<= 96 ULTIMATE.start_main_~k~5), 243493#(<= 95 ULTIMATE.start_main_~k~5), 243492#(<= 94 ULTIMATE.start_main_~k~5), 243499#(<= 101 ULTIMATE.start_main_~k~5), 243498#(<= 100 ULTIMATE.start_main_~k~5), 243497#(<= 99 ULTIMATE.start_main_~k~5), 243496#(<= 98 ULTIMATE.start_main_~k~5), 243503#(<= 105 ULTIMATE.start_main_~k~5), 243502#(<= 104 ULTIMATE.start_main_~k~5), 243501#(<= 103 ULTIMATE.start_main_~k~5), 243500#(<= 102 ULTIMATE.start_main_~k~5), 243507#(<= 109 ULTIMATE.start_main_~k~5), 243506#(<= 108 ULTIMATE.start_main_~k~5), 243505#(<= 107 ULTIMATE.start_main_~k~5), 243504#(<= 106 ULTIMATE.start_main_~k~5), 243511#(<= 113 ULTIMATE.start_main_~k~5), 243510#(<= 112 ULTIMATE.start_main_~k~5), 243509#(<= 111 ULTIMATE.start_main_~k~5), 243508#(<= 110 ULTIMATE.start_main_~k~5), 243515#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 243514#(<= 116 ULTIMATE.start_main_~k~5), 243513#(<= 115 ULTIMATE.start_main_~k~5), 243512#(<= 114 ULTIMATE.start_main_~k~5), 243399#(<= 1 ULTIMATE.start_main_~k~5), 243398#(<= 0 ULTIMATE.start_main_~k~5), 243397#false, 243396#true, 243403#(<= 5 ULTIMATE.start_main_~k~5), 243402#(<= 4 ULTIMATE.start_main_~k~5), 243401#(<= 3 ULTIMATE.start_main_~k~5), 243400#(<= 2 ULTIMATE.start_main_~k~5), 243407#(<= 9 ULTIMATE.start_main_~k~5), 243406#(<= 8 ULTIMATE.start_main_~k~5), 243405#(<= 7 ULTIMATE.start_main_~k~5), 243404#(<= 6 ULTIMATE.start_main_~k~5), 243411#(<= 13 ULTIMATE.start_main_~k~5), 243410#(<= 12 ULTIMATE.start_main_~k~5), 243409#(<= 11 ULTIMATE.start_main_~k~5), 243408#(<= 10 ULTIMATE.start_main_~k~5), 243415#(<= 17 ULTIMATE.start_main_~k~5), 243414#(<= 16 ULTIMATE.start_main_~k~5), 243413#(<= 15 ULTIMATE.start_main_~k~5), 243412#(<= 14 ULTIMATE.start_main_~k~5), 243419#(<= 21 ULTIMATE.start_main_~k~5), 243418#(<= 20 ULTIMATE.start_main_~k~5), 243417#(<= 19 ULTIMATE.start_main_~k~5), 243416#(<= 18 ULTIMATE.start_main_~k~5), 243423#(<= 25 ULTIMATE.start_main_~k~5), 243422#(<= 24 ULTIMATE.start_main_~k~5), 243421#(<= 23 ULTIMATE.start_main_~k~5), 243420#(<= 22 ULTIMATE.start_main_~k~5), 243427#(<= 29 ULTIMATE.start_main_~k~5), 243426#(<= 28 ULTIMATE.start_main_~k~5), 243425#(<= 27 ULTIMATE.start_main_~k~5), 243424#(<= 26 ULTIMATE.start_main_~k~5), 243431#(<= 33 ULTIMATE.start_main_~k~5), 243430#(<= 32 ULTIMATE.start_main_~k~5), 243429#(<= 31 ULTIMATE.start_main_~k~5), 243428#(<= 30 ULTIMATE.start_main_~k~5), 243435#(<= 37 ULTIMATE.start_main_~k~5), 243434#(<= 36 ULTIMATE.start_main_~k~5), 243433#(<= 35 ULTIMATE.start_main_~k~5), 243432#(<= 34 ULTIMATE.start_main_~k~5), 243439#(<= 41 ULTIMATE.start_main_~k~5), 243438#(<= 40 ULTIMATE.start_main_~k~5), 243437#(<= 39 ULTIMATE.start_main_~k~5), 243436#(<= 38 ULTIMATE.start_main_~k~5), 243443#(<= 45 ULTIMATE.start_main_~k~5), 243442#(<= 44 ULTIMATE.start_main_~k~5), 243441#(<= 43 ULTIMATE.start_main_~k~5), 243440#(<= 42 ULTIMATE.start_main_~k~5), 243447#(<= 49 ULTIMATE.start_main_~k~5), 243446#(<= 48 ULTIMATE.start_main_~k~5), 243445#(<= 47 ULTIMATE.start_main_~k~5), 243444#(<= 46 ULTIMATE.start_main_~k~5), 243451#(<= 53 ULTIMATE.start_main_~k~5), 243450#(<= 52 ULTIMATE.start_main_~k~5), 243449#(<= 51 ULTIMATE.start_main_~k~5), 243448#(<= 50 ULTIMATE.start_main_~k~5), 243455#(<= 57 ULTIMATE.start_main_~k~5), 243454#(<= 56 ULTIMATE.start_main_~k~5), 243453#(<= 55 ULTIMATE.start_main_~k~5), 243452#(<= 54 ULTIMATE.start_main_~k~5)] [2018-07-23 13:44:28,908 INFO L134 CoverageAnalysis]: Checked inductivity of 20126 backedges. 6786 proven. 13340 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:28,908 INFO L450 AbstractCegarLoop]: Interpolant automaton has 120 states [2018-07-23 13:44:28,909 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 120 interpolants. [2018-07-23 13:44:28,909 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7023, Invalid=7257, Unknown=0, NotChecked=0, Total=14280 [2018-07-23 13:44:28,909 INFO L87 Difference]: Start difference. First operand 352 states and 353 transitions. Second operand 120 states. [2018-07-23 13:44:29,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:44:29,471 INFO L93 Difference]: Finished difference Result 360 states and 361 transitions. [2018-07-23 13:44:29,471 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 236 states. [2018-07-23 13:44:29,471 INFO L78 Accepts]: Start accepts. Automaton has 120 states. Word has length 351 [2018-07-23 13:44:29,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:44:29,472 INFO L225 Difference]: With dead ends: 360 [2018-07-23 13:44:29,472 INFO L226 Difference]: Without dead ends: 358 [2018-07-23 13:44:29,476 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 235 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13572 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=21063, Invalid=34869, Unknown=0, NotChecked=0, Total=55932 [2018-07-23 13:44:29,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2018-07-23 13:44:29,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 354. [2018-07-23 13:44:29,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 354 states. [2018-07-23 13:44:29,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 355 transitions. [2018-07-23 13:44:29,528 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 355 transitions. Word has length 351 [2018-07-23 13:44:29,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:44:29,529 INFO L471 AbstractCegarLoop]: Abstraction has 354 states and 355 transitions. [2018-07-23 13:44:29,529 INFO L472 AbstractCegarLoop]: Interpolant automaton has 120 states. [2018-07-23 13:44:29,529 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 355 transitions. [2018-07-23 13:44:29,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2018-07-23 13:44:29,530 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:44:29,530 INFO L357 BasicCegarLoop]: trace histogram [117, 116, 116, 1, 1, 1, 1] [2018-07-23 13:44:29,530 INFO L414 AbstractCegarLoop]: === Iteration 233 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:44:29,530 INFO L82 PathProgramCache]: Analyzing trace with hash 86741787, now seen corresponding path program 231 times [2018-07-23 13:44:29,530 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:44:29,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:44:30,781 INFO L134 CoverageAnalysis]: Checked inductivity of 20358 backedges. 13572 proven. 6786 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:30,781 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:44:30,781 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [235] total 235 [2018-07-23 13:44:30,781 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:44:30,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:30,782 INFO L185 omatonBuilderFactory]: Interpolants [245251#(<= ULTIMATE.start_main_~i~5 71), 245250#(<= ULTIMATE.start_main_~i~5 70), 245249#(<= ULTIMATE.start_main_~i~5 69), 245248#(<= ULTIMATE.start_main_~i~5 68), 245255#(<= ULTIMATE.start_main_~i~5 75), 245254#(<= ULTIMATE.start_main_~i~5 74), 245253#(<= ULTIMATE.start_main_~i~5 73), 245252#(<= ULTIMATE.start_main_~i~5 72), 245259#(<= ULTIMATE.start_main_~i~5 79), 245258#(<= ULTIMATE.start_main_~i~5 78), 245257#(<= ULTIMATE.start_main_~i~5 77), 245256#(<= ULTIMATE.start_main_~i~5 76), 245263#(<= ULTIMATE.start_main_~i~5 83), 245262#(<= ULTIMATE.start_main_~i~5 82), 245261#(<= ULTIMATE.start_main_~i~5 81), 245260#(<= ULTIMATE.start_main_~i~5 80), 245267#(<= ULTIMATE.start_main_~i~5 87), 245266#(<= ULTIMATE.start_main_~i~5 86), 245265#(<= ULTIMATE.start_main_~i~5 85), 245264#(<= ULTIMATE.start_main_~i~5 84), 245271#(<= ULTIMATE.start_main_~i~5 91), 245270#(<= ULTIMATE.start_main_~i~5 90), 245269#(<= ULTIMATE.start_main_~i~5 89), 245268#(<= ULTIMATE.start_main_~i~5 88), 245275#(<= ULTIMATE.start_main_~i~5 95), 245274#(<= ULTIMATE.start_main_~i~5 94), 245273#(<= ULTIMATE.start_main_~i~5 93), 245272#(<= ULTIMATE.start_main_~i~5 92), 245279#(<= ULTIMATE.start_main_~i~5 99), 245278#(<= ULTIMATE.start_main_~i~5 98), 245277#(<= ULTIMATE.start_main_~i~5 97), 245276#(<= ULTIMATE.start_main_~i~5 96), 245283#(<= ULTIMATE.start_main_~i~5 103), 245282#(<= ULTIMATE.start_main_~i~5 102), 245281#(<= ULTIMATE.start_main_~i~5 101), 245280#(<= ULTIMATE.start_main_~i~5 100), 245287#(<= ULTIMATE.start_main_~i~5 107), 245286#(<= ULTIMATE.start_main_~i~5 106), 245285#(<= ULTIMATE.start_main_~i~5 105), 245284#(<= ULTIMATE.start_main_~i~5 104), 245291#(<= ULTIMATE.start_main_~i~5 111), 245290#(<= ULTIMATE.start_main_~i~5 110), 245289#(<= ULTIMATE.start_main_~i~5 109), 245288#(<= ULTIMATE.start_main_~i~5 108), 245295#(<= ULTIMATE.start_main_~i~5 115), 245294#(<= ULTIMATE.start_main_~i~5 114), 245293#(<= ULTIMATE.start_main_~i~5 113), 245292#(<= ULTIMATE.start_main_~i~5 112), 245299#(<= ULTIMATE.start_main_~j~5 114), 245298#(<= ULTIMATE.start_main_~j~5 115), 245297#(<= ULTIMATE.start_main_~j~5 116), 245296#(<= ULTIMATE.start_main_~i~5 116), 245303#(<= ULTIMATE.start_main_~j~5 110), 245302#(<= ULTIMATE.start_main_~j~5 111), 245301#(<= ULTIMATE.start_main_~j~5 112), 245300#(<= ULTIMATE.start_main_~j~5 113), 245307#(<= ULTIMATE.start_main_~j~5 106), 245306#(<= ULTIMATE.start_main_~j~5 107), 245305#(<= ULTIMATE.start_main_~j~5 108), 245304#(<= ULTIMATE.start_main_~j~5 109), 245311#(<= ULTIMATE.start_main_~j~5 102), 245310#(<= ULTIMATE.start_main_~j~5 103), 245309#(<= ULTIMATE.start_main_~j~5 104), 245308#(<= ULTIMATE.start_main_~j~5 105), 245315#(<= ULTIMATE.start_main_~j~5 98), 245314#(<= ULTIMATE.start_main_~j~5 99), 245313#(<= ULTIMATE.start_main_~j~5 100), 245312#(<= ULTIMATE.start_main_~j~5 101), 245319#(<= ULTIMATE.start_main_~j~5 94), 245318#(<= ULTIMATE.start_main_~j~5 95), 245317#(<= ULTIMATE.start_main_~j~5 96), 245316#(<= ULTIMATE.start_main_~j~5 97), 245323#(<= ULTIMATE.start_main_~j~5 90), 245322#(<= ULTIMATE.start_main_~j~5 91), 245321#(<= ULTIMATE.start_main_~j~5 92), 245320#(<= ULTIMATE.start_main_~j~5 93), 245327#(<= ULTIMATE.start_main_~j~5 86), 245326#(<= ULTIMATE.start_main_~j~5 87), 245325#(<= ULTIMATE.start_main_~j~5 88), 245324#(<= ULTIMATE.start_main_~j~5 89), 245331#(<= ULTIMATE.start_main_~j~5 82), 245330#(<= ULTIMATE.start_main_~j~5 83), 245329#(<= ULTIMATE.start_main_~j~5 84), 245328#(<= ULTIMATE.start_main_~j~5 85), 245335#(<= ULTIMATE.start_main_~j~5 78), 245334#(<= ULTIMATE.start_main_~j~5 79), 245333#(<= ULTIMATE.start_main_~j~5 80), 245332#(<= ULTIMATE.start_main_~j~5 81), 245339#(<= ULTIMATE.start_main_~j~5 74), 245338#(<= ULTIMATE.start_main_~j~5 75), 245337#(<= ULTIMATE.start_main_~j~5 76), 245336#(<= ULTIMATE.start_main_~j~5 77), 245343#(<= ULTIMATE.start_main_~j~5 70), 245342#(<= ULTIMATE.start_main_~j~5 71), 245341#(<= ULTIMATE.start_main_~j~5 72), 245340#(<= ULTIMATE.start_main_~j~5 73), 245347#(<= ULTIMATE.start_main_~j~5 66), 245346#(<= ULTIMATE.start_main_~j~5 67), 245345#(<= ULTIMATE.start_main_~j~5 68), 245344#(<= ULTIMATE.start_main_~j~5 69), 245351#(<= ULTIMATE.start_main_~j~5 62), 245350#(<= ULTIMATE.start_main_~j~5 63), 245349#(<= ULTIMATE.start_main_~j~5 64), 245348#(<= ULTIMATE.start_main_~j~5 65), 245355#(<= ULTIMATE.start_main_~j~5 58), 245354#(<= ULTIMATE.start_main_~j~5 59), 245353#(<= ULTIMATE.start_main_~j~5 60), 245352#(<= ULTIMATE.start_main_~j~5 61), 245359#(<= ULTIMATE.start_main_~j~5 54), 245358#(<= ULTIMATE.start_main_~j~5 55), 245357#(<= ULTIMATE.start_main_~j~5 56), 245356#(<= ULTIMATE.start_main_~j~5 57), 245363#(<= ULTIMATE.start_main_~j~5 50), 245362#(<= ULTIMATE.start_main_~j~5 51), 245361#(<= ULTIMATE.start_main_~j~5 52), 245360#(<= ULTIMATE.start_main_~j~5 53), 245367#(<= ULTIMATE.start_main_~j~5 46), 245366#(<= ULTIMATE.start_main_~j~5 47), 245365#(<= ULTIMATE.start_main_~j~5 48), 245364#(<= ULTIMATE.start_main_~j~5 49), 245371#(<= ULTIMATE.start_main_~j~5 42), 245370#(<= ULTIMATE.start_main_~j~5 43), 245369#(<= ULTIMATE.start_main_~j~5 44), 245368#(<= ULTIMATE.start_main_~j~5 45), 245375#(<= ULTIMATE.start_main_~j~5 38), 245374#(<= ULTIMATE.start_main_~j~5 39), 245373#(<= ULTIMATE.start_main_~j~5 40), 245372#(<= ULTIMATE.start_main_~j~5 41), 245379#(<= ULTIMATE.start_main_~j~5 34), 245378#(<= ULTIMATE.start_main_~j~5 35), 245377#(<= ULTIMATE.start_main_~j~5 36), 245376#(<= ULTIMATE.start_main_~j~5 37), 245383#(<= ULTIMATE.start_main_~j~5 30), 245382#(<= ULTIMATE.start_main_~j~5 31), 245381#(<= ULTIMATE.start_main_~j~5 32), 245380#(<= ULTIMATE.start_main_~j~5 33), 245387#(<= ULTIMATE.start_main_~j~5 26), 245386#(<= ULTIMATE.start_main_~j~5 27), 245385#(<= ULTIMATE.start_main_~j~5 28), 245384#(<= ULTIMATE.start_main_~j~5 29), 245391#(<= ULTIMATE.start_main_~j~5 22), 245390#(<= ULTIMATE.start_main_~j~5 23), 245389#(<= ULTIMATE.start_main_~j~5 24), 245388#(<= ULTIMATE.start_main_~j~5 25), 245395#(<= ULTIMATE.start_main_~j~5 18), 245394#(<= ULTIMATE.start_main_~j~5 19), 245393#(<= ULTIMATE.start_main_~j~5 20), 245392#(<= ULTIMATE.start_main_~j~5 21), 245399#(<= ULTIMATE.start_main_~j~5 14), 245398#(<= ULTIMATE.start_main_~j~5 15), 245397#(<= ULTIMATE.start_main_~j~5 16), 245396#(<= ULTIMATE.start_main_~j~5 17), 245403#(<= ULTIMATE.start_main_~j~5 10), 245402#(<= ULTIMATE.start_main_~j~5 11), 245401#(<= ULTIMATE.start_main_~j~5 12), 245400#(<= ULTIMATE.start_main_~j~5 13), 245407#(<= ULTIMATE.start_main_~j~5 6), 245406#(<= ULTIMATE.start_main_~j~5 7), 245405#(<= ULTIMATE.start_main_~j~5 8), 245404#(<= ULTIMATE.start_main_~j~5 9), 245411#(<= ULTIMATE.start_main_~j~5 2), 245410#(<= ULTIMATE.start_main_~j~5 3), 245409#(<= ULTIMATE.start_main_~j~5 4), 245408#(<= ULTIMATE.start_main_~j~5 5), 245413#(<= ULTIMATE.start_main_~j~5 0), 245412#(<= ULTIMATE.start_main_~j~5 1), 245179#false, 245178#true, 245183#(<= ULTIMATE.start_main_~i~5 3), 245182#(<= ULTIMATE.start_main_~i~5 2), 245181#(<= ULTIMATE.start_main_~i~5 1), 245180#(<= ULTIMATE.start_main_~i~5 0), 245187#(<= ULTIMATE.start_main_~i~5 7), 245186#(<= ULTIMATE.start_main_~i~5 6), 245185#(<= ULTIMATE.start_main_~i~5 5), 245184#(<= ULTIMATE.start_main_~i~5 4), 245191#(<= ULTIMATE.start_main_~i~5 11), 245190#(<= ULTIMATE.start_main_~i~5 10), 245189#(<= ULTIMATE.start_main_~i~5 9), 245188#(<= ULTIMATE.start_main_~i~5 8), 245195#(<= ULTIMATE.start_main_~i~5 15), 245194#(<= ULTIMATE.start_main_~i~5 14), 245193#(<= ULTIMATE.start_main_~i~5 13), 245192#(<= ULTIMATE.start_main_~i~5 12), 245199#(<= ULTIMATE.start_main_~i~5 19), 245198#(<= ULTIMATE.start_main_~i~5 18), 245197#(<= ULTIMATE.start_main_~i~5 17), 245196#(<= ULTIMATE.start_main_~i~5 16), 245203#(<= ULTIMATE.start_main_~i~5 23), 245202#(<= ULTIMATE.start_main_~i~5 22), 245201#(<= ULTIMATE.start_main_~i~5 21), 245200#(<= ULTIMATE.start_main_~i~5 20), 245207#(<= ULTIMATE.start_main_~i~5 27), 245206#(<= ULTIMATE.start_main_~i~5 26), 245205#(<= ULTIMATE.start_main_~i~5 25), 245204#(<= ULTIMATE.start_main_~i~5 24), 245211#(<= ULTIMATE.start_main_~i~5 31), 245210#(<= ULTIMATE.start_main_~i~5 30), 245209#(<= ULTIMATE.start_main_~i~5 29), 245208#(<= ULTIMATE.start_main_~i~5 28), 245215#(<= ULTIMATE.start_main_~i~5 35), 245214#(<= ULTIMATE.start_main_~i~5 34), 245213#(<= ULTIMATE.start_main_~i~5 33), 245212#(<= ULTIMATE.start_main_~i~5 32), 245219#(<= ULTIMATE.start_main_~i~5 39), 245218#(<= ULTIMATE.start_main_~i~5 38), 245217#(<= ULTIMATE.start_main_~i~5 37), 245216#(<= ULTIMATE.start_main_~i~5 36), 245223#(<= ULTIMATE.start_main_~i~5 43), 245222#(<= ULTIMATE.start_main_~i~5 42), 245221#(<= ULTIMATE.start_main_~i~5 41), 245220#(<= ULTIMATE.start_main_~i~5 40), 245227#(<= ULTIMATE.start_main_~i~5 47), 245226#(<= ULTIMATE.start_main_~i~5 46), 245225#(<= ULTIMATE.start_main_~i~5 45), 245224#(<= ULTIMATE.start_main_~i~5 44), 245231#(<= ULTIMATE.start_main_~i~5 51), 245230#(<= ULTIMATE.start_main_~i~5 50), 245229#(<= ULTIMATE.start_main_~i~5 49), 245228#(<= ULTIMATE.start_main_~i~5 48), 245235#(<= ULTIMATE.start_main_~i~5 55), 245234#(<= ULTIMATE.start_main_~i~5 54), 245233#(<= ULTIMATE.start_main_~i~5 53), 245232#(<= ULTIMATE.start_main_~i~5 52), 245239#(<= ULTIMATE.start_main_~i~5 59), 245238#(<= ULTIMATE.start_main_~i~5 58), 245237#(<= ULTIMATE.start_main_~i~5 57), 245236#(<= ULTIMATE.start_main_~i~5 56), 245243#(<= ULTIMATE.start_main_~i~5 63), 245242#(<= ULTIMATE.start_main_~i~5 62), 245241#(<= ULTIMATE.start_main_~i~5 61), 245240#(<= ULTIMATE.start_main_~i~5 60), 245247#(<= ULTIMATE.start_main_~i~5 67), 245246#(<= ULTIMATE.start_main_~i~5 66), 245245#(<= ULTIMATE.start_main_~i~5 65), 245244#(<= ULTIMATE.start_main_~i~5 64)] [2018-07-23 13:44:30,783 INFO L134 CoverageAnalysis]: Checked inductivity of 20358 backedges. 13572 proven. 6786 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:30,783 INFO L450 AbstractCegarLoop]: Interpolant automaton has 236 states [2018-07-23 13:44:30,785 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 236 interpolants. [2018-07-23 13:44:30,786 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14041, Invalid=41419, Unknown=0, NotChecked=0, Total=55460 [2018-07-23 13:44:30,787 INFO L87 Difference]: Start difference. First operand 354 states and 355 transitions. Second operand 236 states. [2018-07-23 13:44:32,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:44:32,676 INFO L93 Difference]: Finished difference Result 592 states and 594 transitions. [2018-07-23 13:44:32,676 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 236 states. [2018-07-23 13:44:32,676 INFO L78 Accepts]: Start accepts. Automaton has 236 states. Word has length 353 [2018-07-23 13:44:32,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:44:32,677 INFO L225 Difference]: With dead ends: 592 [2018-07-23 13:44:32,677 INFO L226 Difference]: Without dead ends: 355 [2018-07-23 13:44:32,684 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 352 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 351 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20242 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=28081, Invalid=96175, Unknown=0, NotChecked=0, Total=124256 [2018-07-23 13:44:32,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2018-07-23 13:44:32,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 355. [2018-07-23 13:44:32,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 355 states. [2018-07-23 13:44:32,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 356 transitions. [2018-07-23 13:44:32,734 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 356 transitions. Word has length 353 [2018-07-23 13:44:32,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:44:32,734 INFO L471 AbstractCegarLoop]: Abstraction has 355 states and 356 transitions. [2018-07-23 13:44:32,734 INFO L472 AbstractCegarLoop]: Interpolant automaton has 236 states. [2018-07-23 13:44:32,734 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 356 transitions. [2018-07-23 13:44:32,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2018-07-23 13:44:32,735 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:44:32,735 INFO L357 BasicCegarLoop]: trace histogram [117, 117, 116, 1, 1, 1, 1] [2018-07-23 13:44:32,735 INFO L414 AbstractCegarLoop]: === Iteration 234 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:44:32,735 INFO L82 PathProgramCache]: Analyzing trace with hash -1182293310, now seen corresponding path program 232 times [2018-07-23 13:44:32,735 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:44:33,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:44:33,562 INFO L134 CoverageAnalysis]: Checked inductivity of 20475 backedges. 6903 proven. 13572 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:33,562 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:44:33,562 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [120] total 120 [2018-07-23 13:44:33,562 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:44:33,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:33,563 INFO L185 omatonBuilderFactory]: Interpolants [247555#(<= 11 ULTIMATE.start_main_~k~5), 247554#(<= 10 ULTIMATE.start_main_~k~5), 247553#(<= 9 ULTIMATE.start_main_~k~5), 247552#(<= 8 ULTIMATE.start_main_~k~5), 247559#(<= 15 ULTIMATE.start_main_~k~5), 247558#(<= 14 ULTIMATE.start_main_~k~5), 247557#(<= 13 ULTIMATE.start_main_~k~5), 247556#(<= 12 ULTIMATE.start_main_~k~5), 247563#(<= 19 ULTIMATE.start_main_~k~5), 247562#(<= 18 ULTIMATE.start_main_~k~5), 247561#(<= 17 ULTIMATE.start_main_~k~5), 247560#(<= 16 ULTIMATE.start_main_~k~5), 247567#(<= 23 ULTIMATE.start_main_~k~5), 247566#(<= 22 ULTIMATE.start_main_~k~5), 247565#(<= 21 ULTIMATE.start_main_~k~5), 247564#(<= 20 ULTIMATE.start_main_~k~5), 247571#(<= 27 ULTIMATE.start_main_~k~5), 247570#(<= 26 ULTIMATE.start_main_~k~5), 247569#(<= 25 ULTIMATE.start_main_~k~5), 247568#(<= 24 ULTIMATE.start_main_~k~5), 247575#(<= 31 ULTIMATE.start_main_~k~5), 247574#(<= 30 ULTIMATE.start_main_~k~5), 247573#(<= 29 ULTIMATE.start_main_~k~5), 247572#(<= 28 ULTIMATE.start_main_~k~5), 247579#(<= 35 ULTIMATE.start_main_~k~5), 247578#(<= 34 ULTIMATE.start_main_~k~5), 247577#(<= 33 ULTIMATE.start_main_~k~5), 247576#(<= 32 ULTIMATE.start_main_~k~5), 247583#(<= 39 ULTIMATE.start_main_~k~5), 247582#(<= 38 ULTIMATE.start_main_~k~5), 247581#(<= 37 ULTIMATE.start_main_~k~5), 247580#(<= 36 ULTIMATE.start_main_~k~5), 247587#(<= 43 ULTIMATE.start_main_~k~5), 247586#(<= 42 ULTIMATE.start_main_~k~5), 247585#(<= 41 ULTIMATE.start_main_~k~5), 247584#(<= 40 ULTIMATE.start_main_~k~5), 247591#(<= 47 ULTIMATE.start_main_~k~5), 247590#(<= 46 ULTIMATE.start_main_~k~5), 247589#(<= 45 ULTIMATE.start_main_~k~5), 247588#(<= 44 ULTIMATE.start_main_~k~5), 247595#(<= 51 ULTIMATE.start_main_~k~5), 247594#(<= 50 ULTIMATE.start_main_~k~5), 247593#(<= 49 ULTIMATE.start_main_~k~5), 247592#(<= 48 ULTIMATE.start_main_~k~5), 247599#(<= 55 ULTIMATE.start_main_~k~5), 247598#(<= 54 ULTIMATE.start_main_~k~5), 247597#(<= 53 ULTIMATE.start_main_~k~5), 247596#(<= 52 ULTIMATE.start_main_~k~5), 247603#(<= 59 ULTIMATE.start_main_~k~5), 247602#(<= 58 ULTIMATE.start_main_~k~5), 247601#(<= 57 ULTIMATE.start_main_~k~5), 247600#(<= 56 ULTIMATE.start_main_~k~5), 247607#(<= 63 ULTIMATE.start_main_~k~5), 247606#(<= 62 ULTIMATE.start_main_~k~5), 247605#(<= 61 ULTIMATE.start_main_~k~5), 247604#(<= 60 ULTIMATE.start_main_~k~5), 247611#(<= 67 ULTIMATE.start_main_~k~5), 247610#(<= 66 ULTIMATE.start_main_~k~5), 247609#(<= 65 ULTIMATE.start_main_~k~5), 247608#(<= 64 ULTIMATE.start_main_~k~5), 247615#(<= 71 ULTIMATE.start_main_~k~5), 247614#(<= 70 ULTIMATE.start_main_~k~5), 247613#(<= 69 ULTIMATE.start_main_~k~5), 247612#(<= 68 ULTIMATE.start_main_~k~5), 247619#(<= 75 ULTIMATE.start_main_~k~5), 247618#(<= 74 ULTIMATE.start_main_~k~5), 247617#(<= 73 ULTIMATE.start_main_~k~5), 247616#(<= 72 ULTIMATE.start_main_~k~5), 247623#(<= 79 ULTIMATE.start_main_~k~5), 247622#(<= 78 ULTIMATE.start_main_~k~5), 247621#(<= 77 ULTIMATE.start_main_~k~5), 247620#(<= 76 ULTIMATE.start_main_~k~5), 247627#(<= 83 ULTIMATE.start_main_~k~5), 247626#(<= 82 ULTIMATE.start_main_~k~5), 247625#(<= 81 ULTIMATE.start_main_~k~5), 247624#(<= 80 ULTIMATE.start_main_~k~5), 247631#(<= 87 ULTIMATE.start_main_~k~5), 247630#(<= 86 ULTIMATE.start_main_~k~5), 247629#(<= 85 ULTIMATE.start_main_~k~5), 247628#(<= 84 ULTIMATE.start_main_~k~5), 247635#(<= 91 ULTIMATE.start_main_~k~5), 247634#(<= 90 ULTIMATE.start_main_~k~5), 247633#(<= 89 ULTIMATE.start_main_~k~5), 247632#(<= 88 ULTIMATE.start_main_~k~5), 247639#(<= 95 ULTIMATE.start_main_~k~5), 247638#(<= 94 ULTIMATE.start_main_~k~5), 247637#(<= 93 ULTIMATE.start_main_~k~5), 247636#(<= 92 ULTIMATE.start_main_~k~5), 247643#(<= 99 ULTIMATE.start_main_~k~5), 247642#(<= 98 ULTIMATE.start_main_~k~5), 247641#(<= 97 ULTIMATE.start_main_~k~5), 247640#(<= 96 ULTIMATE.start_main_~k~5), 247647#(<= 103 ULTIMATE.start_main_~k~5), 247646#(<= 102 ULTIMATE.start_main_~k~5), 247645#(<= 101 ULTIMATE.start_main_~k~5), 247644#(<= 100 ULTIMATE.start_main_~k~5), 247651#(<= 107 ULTIMATE.start_main_~k~5), 247650#(<= 106 ULTIMATE.start_main_~k~5), 247649#(<= 105 ULTIMATE.start_main_~k~5), 247648#(<= 104 ULTIMATE.start_main_~k~5), 247655#(<= 111 ULTIMATE.start_main_~k~5), 247654#(<= 110 ULTIMATE.start_main_~k~5), 247653#(<= 109 ULTIMATE.start_main_~k~5), 247652#(<= 108 ULTIMATE.start_main_~k~5), 247659#(<= 115 ULTIMATE.start_main_~k~5), 247658#(<= 114 ULTIMATE.start_main_~k~5), 247657#(<= 113 ULTIMATE.start_main_~k~5), 247656#(<= 112 ULTIMATE.start_main_~k~5), 247662#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 247661#(<= 117 ULTIMATE.start_main_~k~5), 247660#(<= 116 ULTIMATE.start_main_~k~5), 247543#false, 247542#true, 247547#(<= 3 ULTIMATE.start_main_~k~5), 247546#(<= 2 ULTIMATE.start_main_~k~5), 247545#(<= 1 ULTIMATE.start_main_~k~5), 247544#(<= 0 ULTIMATE.start_main_~k~5), 247551#(<= 7 ULTIMATE.start_main_~k~5), 247550#(<= 6 ULTIMATE.start_main_~k~5), 247549#(<= 5 ULTIMATE.start_main_~k~5), 247548#(<= 4 ULTIMATE.start_main_~k~5)] [2018-07-23 13:44:33,564 INFO L134 CoverageAnalysis]: Checked inductivity of 20475 backedges. 6903 proven. 13572 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:33,564 INFO L450 AbstractCegarLoop]: Interpolant automaton has 121 states [2018-07-23 13:44:33,564 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 121 interpolants. [2018-07-23 13:44:33,565 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7142, Invalid=7378, Unknown=0, NotChecked=0, Total=14520 [2018-07-23 13:44:33,565 INFO L87 Difference]: Start difference. First operand 355 states and 356 transitions. Second operand 121 states. [2018-07-23 13:44:34,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:44:34,153 INFO L93 Difference]: Finished difference Result 363 states and 364 transitions. [2018-07-23 13:44:34,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 238 states. [2018-07-23 13:44:34,153 INFO L78 Accepts]: Start accepts. Automaton has 121 states. Word has length 354 [2018-07-23 13:44:34,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:44:34,153 INFO L225 Difference]: With dead ends: 363 [2018-07-23 13:44:34,153 INFO L226 Difference]: Without dead ends: 361 [2018-07-23 13:44:34,156 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 237 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13806 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=21420, Invalid=35462, Unknown=0, NotChecked=0, Total=56882 [2018-07-23 13:44:34,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2018-07-23 13:44:34,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 357. [2018-07-23 13:44:34,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 357 states. [2018-07-23 13:44:34,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 358 transitions. [2018-07-23 13:44:34,207 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 358 transitions. Word has length 354 [2018-07-23 13:44:34,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:44:34,207 INFO L471 AbstractCegarLoop]: Abstraction has 357 states and 358 transitions. [2018-07-23 13:44:34,207 INFO L472 AbstractCegarLoop]: Interpolant automaton has 121 states. [2018-07-23 13:44:34,207 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 358 transitions. [2018-07-23 13:44:34,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2018-07-23 13:44:34,208 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:44:34,208 INFO L357 BasicCegarLoop]: trace histogram [118, 117, 117, 1, 1, 1, 1] [2018-07-23 13:44:34,208 INFO L414 AbstractCegarLoop]: === Iteration 235 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:44:34,209 INFO L82 PathProgramCache]: Analyzing trace with hash 1982528554, now seen corresponding path program 233 times [2018-07-23 13:44:34,209 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:44:34,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:44:35,542 INFO L134 CoverageAnalysis]: Checked inductivity of 20709 backedges. 13806 proven. 6903 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:35,542 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:44:35,542 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [237] total 237 [2018-07-23 13:44:35,542 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:44:35,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:35,543 INFO L185 omatonBuilderFactory]: Interpolants [249347#(<= ULTIMATE.start_main_~i~5 6), 249346#(<= ULTIMATE.start_main_~i~5 5), 249345#(<= ULTIMATE.start_main_~i~5 4), 249344#(<= ULTIMATE.start_main_~i~5 3), 249351#(<= ULTIMATE.start_main_~i~5 10), 249350#(<= ULTIMATE.start_main_~i~5 9), 249349#(<= ULTIMATE.start_main_~i~5 8), 249348#(<= ULTIMATE.start_main_~i~5 7), 249355#(<= ULTIMATE.start_main_~i~5 14), 249354#(<= ULTIMATE.start_main_~i~5 13), 249353#(<= ULTIMATE.start_main_~i~5 12), 249352#(<= ULTIMATE.start_main_~i~5 11), 249359#(<= ULTIMATE.start_main_~i~5 18), 249358#(<= ULTIMATE.start_main_~i~5 17), 249357#(<= ULTIMATE.start_main_~i~5 16), 249356#(<= ULTIMATE.start_main_~i~5 15), 249363#(<= ULTIMATE.start_main_~i~5 22), 249362#(<= ULTIMATE.start_main_~i~5 21), 249361#(<= ULTIMATE.start_main_~i~5 20), 249360#(<= ULTIMATE.start_main_~i~5 19), 249367#(<= ULTIMATE.start_main_~i~5 26), 249366#(<= ULTIMATE.start_main_~i~5 25), 249365#(<= ULTIMATE.start_main_~i~5 24), 249364#(<= ULTIMATE.start_main_~i~5 23), 249371#(<= ULTIMATE.start_main_~i~5 30), 249370#(<= ULTIMATE.start_main_~i~5 29), 249369#(<= ULTIMATE.start_main_~i~5 28), 249368#(<= ULTIMATE.start_main_~i~5 27), 249375#(<= ULTIMATE.start_main_~i~5 34), 249374#(<= ULTIMATE.start_main_~i~5 33), 249373#(<= ULTIMATE.start_main_~i~5 32), 249372#(<= ULTIMATE.start_main_~i~5 31), 249379#(<= ULTIMATE.start_main_~i~5 38), 249378#(<= ULTIMATE.start_main_~i~5 37), 249377#(<= ULTIMATE.start_main_~i~5 36), 249376#(<= ULTIMATE.start_main_~i~5 35), 249383#(<= ULTIMATE.start_main_~i~5 42), 249382#(<= ULTIMATE.start_main_~i~5 41), 249381#(<= ULTIMATE.start_main_~i~5 40), 249380#(<= ULTIMATE.start_main_~i~5 39), 249387#(<= ULTIMATE.start_main_~i~5 46), 249386#(<= ULTIMATE.start_main_~i~5 45), 249385#(<= ULTIMATE.start_main_~i~5 44), 249384#(<= ULTIMATE.start_main_~i~5 43), 249391#(<= ULTIMATE.start_main_~i~5 50), 249390#(<= ULTIMATE.start_main_~i~5 49), 249389#(<= ULTIMATE.start_main_~i~5 48), 249388#(<= ULTIMATE.start_main_~i~5 47), 249395#(<= ULTIMATE.start_main_~i~5 54), 249394#(<= ULTIMATE.start_main_~i~5 53), 249393#(<= ULTIMATE.start_main_~i~5 52), 249392#(<= ULTIMATE.start_main_~i~5 51), 249399#(<= ULTIMATE.start_main_~i~5 58), 249398#(<= ULTIMATE.start_main_~i~5 57), 249397#(<= ULTIMATE.start_main_~i~5 56), 249396#(<= ULTIMATE.start_main_~i~5 55), 249403#(<= ULTIMATE.start_main_~i~5 62), 249402#(<= ULTIMATE.start_main_~i~5 61), 249401#(<= ULTIMATE.start_main_~i~5 60), 249400#(<= ULTIMATE.start_main_~i~5 59), 249407#(<= ULTIMATE.start_main_~i~5 66), 249406#(<= ULTIMATE.start_main_~i~5 65), 249405#(<= ULTIMATE.start_main_~i~5 64), 249404#(<= ULTIMATE.start_main_~i~5 63), 249411#(<= ULTIMATE.start_main_~i~5 70), 249410#(<= ULTIMATE.start_main_~i~5 69), 249409#(<= ULTIMATE.start_main_~i~5 68), 249408#(<= ULTIMATE.start_main_~i~5 67), 249415#(<= ULTIMATE.start_main_~i~5 74), 249414#(<= ULTIMATE.start_main_~i~5 73), 249413#(<= ULTIMATE.start_main_~i~5 72), 249412#(<= ULTIMATE.start_main_~i~5 71), 249419#(<= ULTIMATE.start_main_~i~5 78), 249418#(<= ULTIMATE.start_main_~i~5 77), 249417#(<= ULTIMATE.start_main_~i~5 76), 249416#(<= ULTIMATE.start_main_~i~5 75), 249423#(<= ULTIMATE.start_main_~i~5 82), 249422#(<= ULTIMATE.start_main_~i~5 81), 249421#(<= ULTIMATE.start_main_~i~5 80), 249420#(<= ULTIMATE.start_main_~i~5 79), 249427#(<= ULTIMATE.start_main_~i~5 86), 249426#(<= ULTIMATE.start_main_~i~5 85), 249425#(<= ULTIMATE.start_main_~i~5 84), 249424#(<= ULTIMATE.start_main_~i~5 83), 249431#(<= ULTIMATE.start_main_~i~5 90), 249430#(<= ULTIMATE.start_main_~i~5 89), 249429#(<= ULTIMATE.start_main_~i~5 88), 249428#(<= ULTIMATE.start_main_~i~5 87), 249435#(<= ULTIMATE.start_main_~i~5 94), 249434#(<= ULTIMATE.start_main_~i~5 93), 249433#(<= ULTIMATE.start_main_~i~5 92), 249432#(<= ULTIMATE.start_main_~i~5 91), 249439#(<= ULTIMATE.start_main_~i~5 98), 249438#(<= ULTIMATE.start_main_~i~5 97), 249437#(<= ULTIMATE.start_main_~i~5 96), 249436#(<= ULTIMATE.start_main_~i~5 95), 249443#(<= ULTIMATE.start_main_~i~5 102), 249442#(<= ULTIMATE.start_main_~i~5 101), 249441#(<= ULTIMATE.start_main_~i~5 100), 249440#(<= ULTIMATE.start_main_~i~5 99), 249447#(<= ULTIMATE.start_main_~i~5 106), 249446#(<= ULTIMATE.start_main_~i~5 105), 249445#(<= ULTIMATE.start_main_~i~5 104), 249444#(<= ULTIMATE.start_main_~i~5 103), 249451#(<= ULTIMATE.start_main_~i~5 110), 249450#(<= ULTIMATE.start_main_~i~5 109), 249449#(<= ULTIMATE.start_main_~i~5 108), 249448#(<= ULTIMATE.start_main_~i~5 107), 249455#(<= ULTIMATE.start_main_~i~5 114), 249454#(<= ULTIMATE.start_main_~i~5 113), 249453#(<= ULTIMATE.start_main_~i~5 112), 249452#(<= ULTIMATE.start_main_~i~5 111), 249459#(<= ULTIMATE.start_main_~j~5 117), 249458#(<= ULTIMATE.start_main_~i~5 117), 249457#(<= ULTIMATE.start_main_~i~5 116), 249456#(<= ULTIMATE.start_main_~i~5 115), 249463#(<= ULTIMATE.start_main_~j~5 113), 249462#(<= ULTIMATE.start_main_~j~5 114), 249461#(<= ULTIMATE.start_main_~j~5 115), 249460#(<= ULTIMATE.start_main_~j~5 116), 249467#(<= ULTIMATE.start_main_~j~5 109), 249466#(<= ULTIMATE.start_main_~j~5 110), 249465#(<= ULTIMATE.start_main_~j~5 111), 249464#(<= ULTIMATE.start_main_~j~5 112), 249471#(<= ULTIMATE.start_main_~j~5 105), 249470#(<= ULTIMATE.start_main_~j~5 106), 249469#(<= ULTIMATE.start_main_~j~5 107), 249468#(<= ULTIMATE.start_main_~j~5 108), 249475#(<= ULTIMATE.start_main_~j~5 101), 249474#(<= ULTIMATE.start_main_~j~5 102), 249473#(<= ULTIMATE.start_main_~j~5 103), 249472#(<= ULTIMATE.start_main_~j~5 104), 249479#(<= ULTIMATE.start_main_~j~5 97), 249478#(<= ULTIMATE.start_main_~j~5 98), 249477#(<= ULTIMATE.start_main_~j~5 99), 249476#(<= ULTIMATE.start_main_~j~5 100), 249483#(<= ULTIMATE.start_main_~j~5 93), 249482#(<= ULTIMATE.start_main_~j~5 94), 249481#(<= ULTIMATE.start_main_~j~5 95), 249480#(<= ULTIMATE.start_main_~j~5 96), 249487#(<= ULTIMATE.start_main_~j~5 89), 249486#(<= ULTIMATE.start_main_~j~5 90), 249485#(<= ULTIMATE.start_main_~j~5 91), 249484#(<= ULTIMATE.start_main_~j~5 92), 249491#(<= ULTIMATE.start_main_~j~5 85), 249490#(<= ULTIMATE.start_main_~j~5 86), 249489#(<= ULTIMATE.start_main_~j~5 87), 249488#(<= ULTIMATE.start_main_~j~5 88), 249495#(<= ULTIMATE.start_main_~j~5 81), 249494#(<= ULTIMATE.start_main_~j~5 82), 249493#(<= ULTIMATE.start_main_~j~5 83), 249492#(<= ULTIMATE.start_main_~j~5 84), 249499#(<= ULTIMATE.start_main_~j~5 77), 249498#(<= ULTIMATE.start_main_~j~5 78), 249497#(<= ULTIMATE.start_main_~j~5 79), 249496#(<= ULTIMATE.start_main_~j~5 80), 249503#(<= ULTIMATE.start_main_~j~5 73), 249502#(<= ULTIMATE.start_main_~j~5 74), 249501#(<= ULTIMATE.start_main_~j~5 75), 249500#(<= ULTIMATE.start_main_~j~5 76), 249507#(<= ULTIMATE.start_main_~j~5 69), 249506#(<= ULTIMATE.start_main_~j~5 70), 249505#(<= ULTIMATE.start_main_~j~5 71), 249504#(<= ULTIMATE.start_main_~j~5 72), 249511#(<= ULTIMATE.start_main_~j~5 65), 249510#(<= ULTIMATE.start_main_~j~5 66), 249509#(<= ULTIMATE.start_main_~j~5 67), 249508#(<= ULTIMATE.start_main_~j~5 68), 249515#(<= ULTIMATE.start_main_~j~5 61), 249514#(<= ULTIMATE.start_main_~j~5 62), 249513#(<= ULTIMATE.start_main_~j~5 63), 249512#(<= ULTIMATE.start_main_~j~5 64), 249519#(<= ULTIMATE.start_main_~j~5 57), 249518#(<= ULTIMATE.start_main_~j~5 58), 249517#(<= ULTIMATE.start_main_~j~5 59), 249516#(<= ULTIMATE.start_main_~j~5 60), 249523#(<= ULTIMATE.start_main_~j~5 53), 249522#(<= ULTIMATE.start_main_~j~5 54), 249521#(<= ULTIMATE.start_main_~j~5 55), 249520#(<= ULTIMATE.start_main_~j~5 56), 249527#(<= ULTIMATE.start_main_~j~5 49), 249526#(<= ULTIMATE.start_main_~j~5 50), 249525#(<= ULTIMATE.start_main_~j~5 51), 249524#(<= ULTIMATE.start_main_~j~5 52), 249531#(<= ULTIMATE.start_main_~j~5 45), 249530#(<= ULTIMATE.start_main_~j~5 46), 249529#(<= ULTIMATE.start_main_~j~5 47), 249528#(<= ULTIMATE.start_main_~j~5 48), 249535#(<= ULTIMATE.start_main_~j~5 41), 249534#(<= ULTIMATE.start_main_~j~5 42), 249533#(<= ULTIMATE.start_main_~j~5 43), 249532#(<= ULTIMATE.start_main_~j~5 44), 249539#(<= ULTIMATE.start_main_~j~5 37), 249538#(<= ULTIMATE.start_main_~j~5 38), 249537#(<= ULTIMATE.start_main_~j~5 39), 249536#(<= ULTIMATE.start_main_~j~5 40), 249543#(<= ULTIMATE.start_main_~j~5 33), 249542#(<= ULTIMATE.start_main_~j~5 34), 249541#(<= ULTIMATE.start_main_~j~5 35), 249540#(<= ULTIMATE.start_main_~j~5 36), 249547#(<= ULTIMATE.start_main_~j~5 29), 249546#(<= ULTIMATE.start_main_~j~5 30), 249545#(<= ULTIMATE.start_main_~j~5 31), 249544#(<= ULTIMATE.start_main_~j~5 32), 249551#(<= ULTIMATE.start_main_~j~5 25), 249550#(<= ULTIMATE.start_main_~j~5 26), 249549#(<= ULTIMATE.start_main_~j~5 27), 249548#(<= ULTIMATE.start_main_~j~5 28), 249555#(<= ULTIMATE.start_main_~j~5 21), 249554#(<= ULTIMATE.start_main_~j~5 22), 249553#(<= ULTIMATE.start_main_~j~5 23), 249552#(<= ULTIMATE.start_main_~j~5 24), 249559#(<= ULTIMATE.start_main_~j~5 17), 249558#(<= ULTIMATE.start_main_~j~5 18), 249557#(<= ULTIMATE.start_main_~j~5 19), 249556#(<= ULTIMATE.start_main_~j~5 20), 249563#(<= ULTIMATE.start_main_~j~5 13), 249562#(<= ULTIMATE.start_main_~j~5 14), 249561#(<= ULTIMATE.start_main_~j~5 15), 249560#(<= ULTIMATE.start_main_~j~5 16), 249567#(<= ULTIMATE.start_main_~j~5 9), 249566#(<= ULTIMATE.start_main_~j~5 10), 249565#(<= ULTIMATE.start_main_~j~5 11), 249564#(<= ULTIMATE.start_main_~j~5 12), 249571#(<= ULTIMATE.start_main_~j~5 5), 249570#(<= ULTIMATE.start_main_~j~5 6), 249569#(<= ULTIMATE.start_main_~j~5 7), 249568#(<= ULTIMATE.start_main_~j~5 8), 249575#(<= ULTIMATE.start_main_~j~5 1), 249574#(<= ULTIMATE.start_main_~j~5 2), 249573#(<= ULTIMATE.start_main_~j~5 3), 249572#(<= ULTIMATE.start_main_~j~5 4), 249576#(<= ULTIMATE.start_main_~j~5 0), 249339#true, 249343#(<= ULTIMATE.start_main_~i~5 2), 249342#(<= ULTIMATE.start_main_~i~5 1), 249341#(<= ULTIMATE.start_main_~i~5 0), 249340#false] [2018-07-23 13:44:35,545 INFO L134 CoverageAnalysis]: Checked inductivity of 20709 backedges. 13806 proven. 6903 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:35,545 INFO L450 AbstractCegarLoop]: Interpolant automaton has 238 states [2018-07-23 13:44:35,547 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 238 interpolants. [2018-07-23 13:44:35,551 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14279, Invalid=42127, Unknown=0, NotChecked=0, Total=56406 [2018-07-23 13:44:35,551 INFO L87 Difference]: Start difference. First operand 357 states and 358 transitions. Second operand 238 states. [2018-07-23 13:44:38,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:44:38,087 INFO L93 Difference]: Finished difference Result 597 states and 599 transitions. [2018-07-23 13:44:38,087 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 238 states. [2018-07-23 13:44:38,087 INFO L78 Accepts]: Start accepts. Automaton has 238 states. Word has length 356 [2018-07-23 13:44:38,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:44:38,087 INFO L225 Difference]: With dead ends: 597 [2018-07-23 13:44:38,087 INFO L226 Difference]: Without dead ends: 358 [2018-07-23 13:44:38,093 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 354 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20592 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=28557, Invalid=97823, Unknown=0, NotChecked=0, Total=126380 [2018-07-23 13:44:38,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2018-07-23 13:44:38,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 358. [2018-07-23 13:44:38,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2018-07-23 13:44:38,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 359 transitions. [2018-07-23 13:44:38,143 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 359 transitions. Word has length 356 [2018-07-23 13:44:38,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:44:38,143 INFO L471 AbstractCegarLoop]: Abstraction has 358 states and 359 transitions. [2018-07-23 13:44:38,143 INFO L472 AbstractCegarLoop]: Interpolant automaton has 238 states. [2018-07-23 13:44:38,143 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 359 transitions. [2018-07-23 13:44:38,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2018-07-23 13:44:38,144 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:44:38,144 INFO L357 BasicCegarLoop]: trace histogram [118, 118, 117, 1, 1, 1, 1] [2018-07-23 13:44:38,145 INFO L414 AbstractCegarLoop]: === Iteration 236 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:44:38,145 INFO L82 PathProgramCache]: Analyzing trace with hash 460093219, now seen corresponding path program 234 times [2018-07-23 13:44:38,145 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:44:38,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:44:38,973 INFO L134 CoverageAnalysis]: Checked inductivity of 20827 backedges. 7021 proven. 13806 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:38,973 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:44:38,973 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [121] total 121 [2018-07-23 13:44:38,973 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:44:38,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:38,974 INFO L185 omatonBuilderFactory]: Interpolants [251723#true, 251727#(<= 2 ULTIMATE.start_main_~k~5), 251726#(<= 1 ULTIMATE.start_main_~k~5), 251725#(<= 0 ULTIMATE.start_main_~k~5), 251724#false, 251731#(<= 6 ULTIMATE.start_main_~k~5), 251730#(<= 5 ULTIMATE.start_main_~k~5), 251729#(<= 4 ULTIMATE.start_main_~k~5), 251728#(<= 3 ULTIMATE.start_main_~k~5), 251735#(<= 10 ULTIMATE.start_main_~k~5), 251734#(<= 9 ULTIMATE.start_main_~k~5), 251733#(<= 8 ULTIMATE.start_main_~k~5), 251732#(<= 7 ULTIMATE.start_main_~k~5), 251739#(<= 14 ULTIMATE.start_main_~k~5), 251738#(<= 13 ULTIMATE.start_main_~k~5), 251737#(<= 12 ULTIMATE.start_main_~k~5), 251736#(<= 11 ULTIMATE.start_main_~k~5), 251743#(<= 18 ULTIMATE.start_main_~k~5), 251742#(<= 17 ULTIMATE.start_main_~k~5), 251741#(<= 16 ULTIMATE.start_main_~k~5), 251740#(<= 15 ULTIMATE.start_main_~k~5), 251747#(<= 22 ULTIMATE.start_main_~k~5), 251746#(<= 21 ULTIMATE.start_main_~k~5), 251745#(<= 20 ULTIMATE.start_main_~k~5), 251744#(<= 19 ULTIMATE.start_main_~k~5), 251751#(<= 26 ULTIMATE.start_main_~k~5), 251750#(<= 25 ULTIMATE.start_main_~k~5), 251749#(<= 24 ULTIMATE.start_main_~k~5), 251748#(<= 23 ULTIMATE.start_main_~k~5), 251755#(<= 30 ULTIMATE.start_main_~k~5), 251754#(<= 29 ULTIMATE.start_main_~k~5), 251753#(<= 28 ULTIMATE.start_main_~k~5), 251752#(<= 27 ULTIMATE.start_main_~k~5), 251759#(<= 34 ULTIMATE.start_main_~k~5), 251758#(<= 33 ULTIMATE.start_main_~k~5), 251757#(<= 32 ULTIMATE.start_main_~k~5), 251756#(<= 31 ULTIMATE.start_main_~k~5), 251763#(<= 38 ULTIMATE.start_main_~k~5), 251762#(<= 37 ULTIMATE.start_main_~k~5), 251761#(<= 36 ULTIMATE.start_main_~k~5), 251760#(<= 35 ULTIMATE.start_main_~k~5), 251767#(<= 42 ULTIMATE.start_main_~k~5), 251766#(<= 41 ULTIMATE.start_main_~k~5), 251765#(<= 40 ULTIMATE.start_main_~k~5), 251764#(<= 39 ULTIMATE.start_main_~k~5), 251771#(<= 46 ULTIMATE.start_main_~k~5), 251770#(<= 45 ULTIMATE.start_main_~k~5), 251769#(<= 44 ULTIMATE.start_main_~k~5), 251768#(<= 43 ULTIMATE.start_main_~k~5), 251775#(<= 50 ULTIMATE.start_main_~k~5), 251774#(<= 49 ULTIMATE.start_main_~k~5), 251773#(<= 48 ULTIMATE.start_main_~k~5), 251772#(<= 47 ULTIMATE.start_main_~k~5), 251779#(<= 54 ULTIMATE.start_main_~k~5), 251778#(<= 53 ULTIMATE.start_main_~k~5), 251777#(<= 52 ULTIMATE.start_main_~k~5), 251776#(<= 51 ULTIMATE.start_main_~k~5), 251783#(<= 58 ULTIMATE.start_main_~k~5), 251782#(<= 57 ULTIMATE.start_main_~k~5), 251781#(<= 56 ULTIMATE.start_main_~k~5), 251780#(<= 55 ULTIMATE.start_main_~k~5), 251787#(<= 62 ULTIMATE.start_main_~k~5), 251786#(<= 61 ULTIMATE.start_main_~k~5), 251785#(<= 60 ULTIMATE.start_main_~k~5), 251784#(<= 59 ULTIMATE.start_main_~k~5), 251791#(<= 66 ULTIMATE.start_main_~k~5), 251790#(<= 65 ULTIMATE.start_main_~k~5), 251789#(<= 64 ULTIMATE.start_main_~k~5), 251788#(<= 63 ULTIMATE.start_main_~k~5), 251795#(<= 70 ULTIMATE.start_main_~k~5), 251794#(<= 69 ULTIMATE.start_main_~k~5), 251793#(<= 68 ULTIMATE.start_main_~k~5), 251792#(<= 67 ULTIMATE.start_main_~k~5), 251799#(<= 74 ULTIMATE.start_main_~k~5), 251798#(<= 73 ULTIMATE.start_main_~k~5), 251797#(<= 72 ULTIMATE.start_main_~k~5), 251796#(<= 71 ULTIMATE.start_main_~k~5), 251803#(<= 78 ULTIMATE.start_main_~k~5), 251802#(<= 77 ULTIMATE.start_main_~k~5), 251801#(<= 76 ULTIMATE.start_main_~k~5), 251800#(<= 75 ULTIMATE.start_main_~k~5), 251807#(<= 82 ULTIMATE.start_main_~k~5), 251806#(<= 81 ULTIMATE.start_main_~k~5), 251805#(<= 80 ULTIMATE.start_main_~k~5), 251804#(<= 79 ULTIMATE.start_main_~k~5), 251811#(<= 86 ULTIMATE.start_main_~k~5), 251810#(<= 85 ULTIMATE.start_main_~k~5), 251809#(<= 84 ULTIMATE.start_main_~k~5), 251808#(<= 83 ULTIMATE.start_main_~k~5), 251815#(<= 90 ULTIMATE.start_main_~k~5), 251814#(<= 89 ULTIMATE.start_main_~k~5), 251813#(<= 88 ULTIMATE.start_main_~k~5), 251812#(<= 87 ULTIMATE.start_main_~k~5), 251819#(<= 94 ULTIMATE.start_main_~k~5), 251818#(<= 93 ULTIMATE.start_main_~k~5), 251817#(<= 92 ULTIMATE.start_main_~k~5), 251816#(<= 91 ULTIMATE.start_main_~k~5), 251823#(<= 98 ULTIMATE.start_main_~k~5), 251822#(<= 97 ULTIMATE.start_main_~k~5), 251821#(<= 96 ULTIMATE.start_main_~k~5), 251820#(<= 95 ULTIMATE.start_main_~k~5), 251827#(<= 102 ULTIMATE.start_main_~k~5), 251826#(<= 101 ULTIMATE.start_main_~k~5), 251825#(<= 100 ULTIMATE.start_main_~k~5), 251824#(<= 99 ULTIMATE.start_main_~k~5), 251831#(<= 106 ULTIMATE.start_main_~k~5), 251830#(<= 105 ULTIMATE.start_main_~k~5), 251829#(<= 104 ULTIMATE.start_main_~k~5), 251828#(<= 103 ULTIMATE.start_main_~k~5), 251835#(<= 110 ULTIMATE.start_main_~k~5), 251834#(<= 109 ULTIMATE.start_main_~k~5), 251833#(<= 108 ULTIMATE.start_main_~k~5), 251832#(<= 107 ULTIMATE.start_main_~k~5), 251839#(<= 114 ULTIMATE.start_main_~k~5), 251838#(<= 113 ULTIMATE.start_main_~k~5), 251837#(<= 112 ULTIMATE.start_main_~k~5), 251836#(<= 111 ULTIMATE.start_main_~k~5), 251843#(<= 118 ULTIMATE.start_main_~k~5), 251842#(<= 117 ULTIMATE.start_main_~k~5), 251841#(<= 116 ULTIMATE.start_main_~k~5), 251840#(<= 115 ULTIMATE.start_main_~k~5), 251844#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond)] [2018-07-23 13:44:38,975 INFO L134 CoverageAnalysis]: Checked inductivity of 20827 backedges. 7021 proven. 13806 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:38,975 INFO L450 AbstractCegarLoop]: Interpolant automaton has 122 states [2018-07-23 13:44:38,976 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 122 interpolants. [2018-07-23 13:44:38,976 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7262, Invalid=7500, Unknown=0, NotChecked=0, Total=14762 [2018-07-23 13:44:38,976 INFO L87 Difference]: Start difference. First operand 358 states and 359 transitions. Second operand 122 states. [2018-07-23 13:44:39,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:44:39,613 INFO L93 Difference]: Finished difference Result 366 states and 367 transitions. [2018-07-23 13:44:39,614 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 240 states. [2018-07-23 13:44:39,614 INFO L78 Accepts]: Start accepts. Automaton has 122 states. Word has length 357 [2018-07-23 13:44:39,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:44:39,614 INFO L225 Difference]: With dead ends: 366 [2018-07-23 13:44:39,614 INFO L226 Difference]: Without dead ends: 364 [2018-07-23 13:44:39,617 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 239 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14042 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=21780, Invalid=36060, Unknown=0, NotChecked=0, Total=57840 [2018-07-23 13:44:39,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2018-07-23 13:44:39,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 360. [2018-07-23 13:44:39,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2018-07-23 13:44:39,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 361 transitions. [2018-07-23 13:44:39,668 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 361 transitions. Word has length 357 [2018-07-23 13:44:39,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:44:39,669 INFO L471 AbstractCegarLoop]: Abstraction has 360 states and 361 transitions. [2018-07-23 13:44:39,669 INFO L472 AbstractCegarLoop]: Interpolant automaton has 122 states. [2018-07-23 13:44:39,669 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 361 transitions. [2018-07-23 13:44:39,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2018-07-23 13:44:39,670 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:44:39,670 INFO L357 BasicCegarLoop]: trace histogram [119, 118, 118, 1, 1, 1, 1] [2018-07-23 13:44:39,670 INFO L414 AbstractCegarLoop]: === Iteration 237 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:44:39,670 INFO L82 PathProgramCache]: Analyzing trace with hash -231982005, now seen corresponding path program 235 times [2018-07-23 13:44:39,670 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:44:39,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:44:41,081 INFO L134 CoverageAnalysis]: Checked inductivity of 21063 backedges. 14042 proven. 7021 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:41,081 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:44:41,081 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [239] total 239 [2018-07-23 13:44:41,082 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:44:41,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:41,082 INFO L185 omatonBuilderFactory]: Interpolants [253535#true, 253539#(<= ULTIMATE.start_main_~i~5 2), 253538#(<= ULTIMATE.start_main_~i~5 1), 253537#(<= ULTIMATE.start_main_~i~5 0), 253536#false, 253543#(<= ULTIMATE.start_main_~i~5 6), 253542#(<= ULTIMATE.start_main_~i~5 5), 253541#(<= ULTIMATE.start_main_~i~5 4), 253540#(<= ULTIMATE.start_main_~i~5 3), 253547#(<= ULTIMATE.start_main_~i~5 10), 253546#(<= ULTIMATE.start_main_~i~5 9), 253545#(<= ULTIMATE.start_main_~i~5 8), 253544#(<= ULTIMATE.start_main_~i~5 7), 253551#(<= ULTIMATE.start_main_~i~5 14), 253550#(<= ULTIMATE.start_main_~i~5 13), 253549#(<= ULTIMATE.start_main_~i~5 12), 253548#(<= ULTIMATE.start_main_~i~5 11), 253555#(<= ULTIMATE.start_main_~i~5 18), 253554#(<= ULTIMATE.start_main_~i~5 17), 253553#(<= ULTIMATE.start_main_~i~5 16), 253552#(<= ULTIMATE.start_main_~i~5 15), 253559#(<= ULTIMATE.start_main_~i~5 22), 253558#(<= ULTIMATE.start_main_~i~5 21), 253557#(<= ULTIMATE.start_main_~i~5 20), 253556#(<= ULTIMATE.start_main_~i~5 19), 253563#(<= ULTIMATE.start_main_~i~5 26), 253562#(<= ULTIMATE.start_main_~i~5 25), 253561#(<= ULTIMATE.start_main_~i~5 24), 253560#(<= ULTIMATE.start_main_~i~5 23), 253567#(<= ULTIMATE.start_main_~i~5 30), 253566#(<= ULTIMATE.start_main_~i~5 29), 253565#(<= ULTIMATE.start_main_~i~5 28), 253564#(<= ULTIMATE.start_main_~i~5 27), 253571#(<= ULTIMATE.start_main_~i~5 34), 253570#(<= ULTIMATE.start_main_~i~5 33), 253569#(<= ULTIMATE.start_main_~i~5 32), 253568#(<= ULTIMATE.start_main_~i~5 31), 253575#(<= ULTIMATE.start_main_~i~5 38), 253574#(<= ULTIMATE.start_main_~i~5 37), 253573#(<= ULTIMATE.start_main_~i~5 36), 253572#(<= ULTIMATE.start_main_~i~5 35), 253579#(<= ULTIMATE.start_main_~i~5 42), 253578#(<= ULTIMATE.start_main_~i~5 41), 253577#(<= ULTIMATE.start_main_~i~5 40), 253576#(<= ULTIMATE.start_main_~i~5 39), 253583#(<= ULTIMATE.start_main_~i~5 46), 253582#(<= ULTIMATE.start_main_~i~5 45), 253581#(<= ULTIMATE.start_main_~i~5 44), 253580#(<= ULTIMATE.start_main_~i~5 43), 253587#(<= ULTIMATE.start_main_~i~5 50), 253586#(<= ULTIMATE.start_main_~i~5 49), 253585#(<= ULTIMATE.start_main_~i~5 48), 253584#(<= ULTIMATE.start_main_~i~5 47), 253591#(<= ULTIMATE.start_main_~i~5 54), 253590#(<= ULTIMATE.start_main_~i~5 53), 253589#(<= ULTIMATE.start_main_~i~5 52), 253588#(<= ULTIMATE.start_main_~i~5 51), 253595#(<= ULTIMATE.start_main_~i~5 58), 253594#(<= ULTIMATE.start_main_~i~5 57), 253593#(<= ULTIMATE.start_main_~i~5 56), 253592#(<= ULTIMATE.start_main_~i~5 55), 253599#(<= ULTIMATE.start_main_~i~5 62), 253598#(<= ULTIMATE.start_main_~i~5 61), 253597#(<= ULTIMATE.start_main_~i~5 60), 253596#(<= ULTIMATE.start_main_~i~5 59), 253603#(<= ULTIMATE.start_main_~i~5 66), 253602#(<= ULTIMATE.start_main_~i~5 65), 253601#(<= ULTIMATE.start_main_~i~5 64), 253600#(<= ULTIMATE.start_main_~i~5 63), 253607#(<= ULTIMATE.start_main_~i~5 70), 253606#(<= ULTIMATE.start_main_~i~5 69), 253605#(<= ULTIMATE.start_main_~i~5 68), 253604#(<= ULTIMATE.start_main_~i~5 67), 253611#(<= ULTIMATE.start_main_~i~5 74), 253610#(<= ULTIMATE.start_main_~i~5 73), 253609#(<= ULTIMATE.start_main_~i~5 72), 253608#(<= ULTIMATE.start_main_~i~5 71), 253615#(<= ULTIMATE.start_main_~i~5 78), 253614#(<= ULTIMATE.start_main_~i~5 77), 253613#(<= ULTIMATE.start_main_~i~5 76), 253612#(<= ULTIMATE.start_main_~i~5 75), 253619#(<= ULTIMATE.start_main_~i~5 82), 253618#(<= ULTIMATE.start_main_~i~5 81), 253617#(<= ULTIMATE.start_main_~i~5 80), 253616#(<= ULTIMATE.start_main_~i~5 79), 253623#(<= ULTIMATE.start_main_~i~5 86), 253622#(<= ULTIMATE.start_main_~i~5 85), 253621#(<= ULTIMATE.start_main_~i~5 84), 253620#(<= ULTIMATE.start_main_~i~5 83), 253627#(<= ULTIMATE.start_main_~i~5 90), 253626#(<= ULTIMATE.start_main_~i~5 89), 253625#(<= ULTIMATE.start_main_~i~5 88), 253624#(<= ULTIMATE.start_main_~i~5 87), 253631#(<= ULTIMATE.start_main_~i~5 94), 253630#(<= ULTIMATE.start_main_~i~5 93), 253629#(<= ULTIMATE.start_main_~i~5 92), 253628#(<= ULTIMATE.start_main_~i~5 91), 253635#(<= ULTIMATE.start_main_~i~5 98), 253634#(<= ULTIMATE.start_main_~i~5 97), 253633#(<= ULTIMATE.start_main_~i~5 96), 253632#(<= ULTIMATE.start_main_~i~5 95), 253639#(<= ULTIMATE.start_main_~i~5 102), 253638#(<= ULTIMATE.start_main_~i~5 101), 253637#(<= ULTIMATE.start_main_~i~5 100), 253636#(<= ULTIMATE.start_main_~i~5 99), 253643#(<= ULTIMATE.start_main_~i~5 106), 253642#(<= ULTIMATE.start_main_~i~5 105), 253641#(<= ULTIMATE.start_main_~i~5 104), 253640#(<= ULTIMATE.start_main_~i~5 103), 253647#(<= ULTIMATE.start_main_~i~5 110), 253646#(<= ULTIMATE.start_main_~i~5 109), 253645#(<= ULTIMATE.start_main_~i~5 108), 253644#(<= ULTIMATE.start_main_~i~5 107), 253651#(<= ULTIMATE.start_main_~i~5 114), 253650#(<= ULTIMATE.start_main_~i~5 113), 253649#(<= ULTIMATE.start_main_~i~5 112), 253648#(<= ULTIMATE.start_main_~i~5 111), 253655#(<= ULTIMATE.start_main_~i~5 118), 253654#(<= ULTIMATE.start_main_~i~5 117), 253653#(<= ULTIMATE.start_main_~i~5 116), 253652#(<= ULTIMATE.start_main_~i~5 115), 253659#(<= ULTIMATE.start_main_~j~5 115), 253658#(<= ULTIMATE.start_main_~j~5 116), 253657#(<= ULTIMATE.start_main_~j~5 117), 253656#(<= ULTIMATE.start_main_~j~5 118), 253663#(<= ULTIMATE.start_main_~j~5 111), 253662#(<= ULTIMATE.start_main_~j~5 112), 253661#(<= ULTIMATE.start_main_~j~5 113), 253660#(<= ULTIMATE.start_main_~j~5 114), 253667#(<= ULTIMATE.start_main_~j~5 107), 253666#(<= ULTIMATE.start_main_~j~5 108), 253665#(<= ULTIMATE.start_main_~j~5 109), 253664#(<= ULTIMATE.start_main_~j~5 110), 253671#(<= ULTIMATE.start_main_~j~5 103), 253670#(<= ULTIMATE.start_main_~j~5 104), 253669#(<= ULTIMATE.start_main_~j~5 105), 253668#(<= ULTIMATE.start_main_~j~5 106), 253675#(<= ULTIMATE.start_main_~j~5 99), 253674#(<= ULTIMATE.start_main_~j~5 100), 253673#(<= ULTIMATE.start_main_~j~5 101), 253672#(<= ULTIMATE.start_main_~j~5 102), 253679#(<= ULTIMATE.start_main_~j~5 95), 253678#(<= ULTIMATE.start_main_~j~5 96), 253677#(<= ULTIMATE.start_main_~j~5 97), 253676#(<= ULTIMATE.start_main_~j~5 98), 253683#(<= ULTIMATE.start_main_~j~5 91), 253682#(<= ULTIMATE.start_main_~j~5 92), 253681#(<= ULTIMATE.start_main_~j~5 93), 253680#(<= ULTIMATE.start_main_~j~5 94), 253687#(<= ULTIMATE.start_main_~j~5 87), 253686#(<= ULTIMATE.start_main_~j~5 88), 253685#(<= ULTIMATE.start_main_~j~5 89), 253684#(<= ULTIMATE.start_main_~j~5 90), 253691#(<= ULTIMATE.start_main_~j~5 83), 253690#(<= ULTIMATE.start_main_~j~5 84), 253689#(<= ULTIMATE.start_main_~j~5 85), 253688#(<= ULTIMATE.start_main_~j~5 86), 253695#(<= ULTIMATE.start_main_~j~5 79), 253694#(<= ULTIMATE.start_main_~j~5 80), 253693#(<= ULTIMATE.start_main_~j~5 81), 253692#(<= ULTIMATE.start_main_~j~5 82), 253699#(<= ULTIMATE.start_main_~j~5 75), 253698#(<= ULTIMATE.start_main_~j~5 76), 253697#(<= ULTIMATE.start_main_~j~5 77), 253696#(<= ULTIMATE.start_main_~j~5 78), 253703#(<= ULTIMATE.start_main_~j~5 71), 253702#(<= ULTIMATE.start_main_~j~5 72), 253701#(<= ULTIMATE.start_main_~j~5 73), 253700#(<= ULTIMATE.start_main_~j~5 74), 253707#(<= ULTIMATE.start_main_~j~5 67), 253706#(<= ULTIMATE.start_main_~j~5 68), 253705#(<= ULTIMATE.start_main_~j~5 69), 253704#(<= ULTIMATE.start_main_~j~5 70), 253711#(<= ULTIMATE.start_main_~j~5 63), 253710#(<= ULTIMATE.start_main_~j~5 64), 253709#(<= ULTIMATE.start_main_~j~5 65), 253708#(<= ULTIMATE.start_main_~j~5 66), 253715#(<= ULTIMATE.start_main_~j~5 59), 253714#(<= ULTIMATE.start_main_~j~5 60), 253713#(<= ULTIMATE.start_main_~j~5 61), 253712#(<= ULTIMATE.start_main_~j~5 62), 253719#(<= ULTIMATE.start_main_~j~5 55), 253718#(<= ULTIMATE.start_main_~j~5 56), 253717#(<= ULTIMATE.start_main_~j~5 57), 253716#(<= ULTIMATE.start_main_~j~5 58), 253723#(<= ULTIMATE.start_main_~j~5 51), 253722#(<= ULTIMATE.start_main_~j~5 52), 253721#(<= ULTIMATE.start_main_~j~5 53), 253720#(<= ULTIMATE.start_main_~j~5 54), 253727#(<= ULTIMATE.start_main_~j~5 47), 253726#(<= ULTIMATE.start_main_~j~5 48), 253725#(<= ULTIMATE.start_main_~j~5 49), 253724#(<= ULTIMATE.start_main_~j~5 50), 253731#(<= ULTIMATE.start_main_~j~5 43), 253730#(<= ULTIMATE.start_main_~j~5 44), 253729#(<= ULTIMATE.start_main_~j~5 45), 253728#(<= ULTIMATE.start_main_~j~5 46), 253735#(<= ULTIMATE.start_main_~j~5 39), 253734#(<= ULTIMATE.start_main_~j~5 40), 253733#(<= ULTIMATE.start_main_~j~5 41), 253732#(<= ULTIMATE.start_main_~j~5 42), 253739#(<= ULTIMATE.start_main_~j~5 35), 253738#(<= ULTIMATE.start_main_~j~5 36), 253737#(<= ULTIMATE.start_main_~j~5 37), 253736#(<= ULTIMATE.start_main_~j~5 38), 253743#(<= ULTIMATE.start_main_~j~5 31), 253742#(<= ULTIMATE.start_main_~j~5 32), 253741#(<= ULTIMATE.start_main_~j~5 33), 253740#(<= ULTIMATE.start_main_~j~5 34), 253747#(<= ULTIMATE.start_main_~j~5 27), 253746#(<= ULTIMATE.start_main_~j~5 28), 253745#(<= ULTIMATE.start_main_~j~5 29), 253744#(<= ULTIMATE.start_main_~j~5 30), 253751#(<= ULTIMATE.start_main_~j~5 23), 253750#(<= ULTIMATE.start_main_~j~5 24), 253749#(<= ULTIMATE.start_main_~j~5 25), 253748#(<= ULTIMATE.start_main_~j~5 26), 253755#(<= ULTIMATE.start_main_~j~5 19), 253754#(<= ULTIMATE.start_main_~j~5 20), 253753#(<= ULTIMATE.start_main_~j~5 21), 253752#(<= ULTIMATE.start_main_~j~5 22), 253759#(<= ULTIMATE.start_main_~j~5 15), 253758#(<= ULTIMATE.start_main_~j~5 16), 253757#(<= ULTIMATE.start_main_~j~5 17), 253756#(<= ULTIMATE.start_main_~j~5 18), 253763#(<= ULTIMATE.start_main_~j~5 11), 253762#(<= ULTIMATE.start_main_~j~5 12), 253761#(<= ULTIMATE.start_main_~j~5 13), 253760#(<= ULTIMATE.start_main_~j~5 14), 253767#(<= ULTIMATE.start_main_~j~5 7), 253766#(<= ULTIMATE.start_main_~j~5 8), 253765#(<= ULTIMATE.start_main_~j~5 9), 253764#(<= ULTIMATE.start_main_~j~5 10), 253771#(<= ULTIMATE.start_main_~j~5 3), 253770#(<= ULTIMATE.start_main_~j~5 4), 253769#(<= ULTIMATE.start_main_~j~5 5), 253768#(<= ULTIMATE.start_main_~j~5 6), 253774#(<= ULTIMATE.start_main_~j~5 0), 253773#(<= ULTIMATE.start_main_~j~5 1), 253772#(<= ULTIMATE.start_main_~j~5 2)] [2018-07-23 13:44:41,083 INFO L134 CoverageAnalysis]: Checked inductivity of 21063 backedges. 14042 proven. 7021 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:41,083 INFO L450 AbstractCegarLoop]: Interpolant automaton has 240 states [2018-07-23 13:44:41,085 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 240 interpolants. [2018-07-23 13:44:41,087 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14519, Invalid=42841, Unknown=0, NotChecked=0, Total=57360 [2018-07-23 13:44:41,087 INFO L87 Difference]: Start difference. First operand 360 states and 361 transitions. Second operand 240 states. [2018-07-23 13:44:43,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:44:43,720 INFO L93 Difference]: Finished difference Result 602 states and 604 transitions. [2018-07-23 13:44:43,720 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 240 states. [2018-07-23 13:44:43,720 INFO L78 Accepts]: Start accepts. Automaton has 240 states. Word has length 359 [2018-07-23 13:44:43,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:44:43,721 INFO L225 Difference]: With dead ends: 602 [2018-07-23 13:44:43,721 INFO L226 Difference]: Without dead ends: 361 [2018-07-23 13:44:43,730 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 357 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20945 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=29037, Invalid=99485, Unknown=0, NotChecked=0, Total=128522 [2018-07-23 13:44:43,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2018-07-23 13:44:43,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 361. [2018-07-23 13:44:43,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2018-07-23 13:44:43,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 362 transitions. [2018-07-23 13:44:43,780 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 362 transitions. Word has length 359 [2018-07-23 13:44:43,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:44:43,780 INFO L471 AbstractCegarLoop]: Abstraction has 361 states and 362 transitions. [2018-07-23 13:44:43,780 INFO L472 AbstractCegarLoop]: Interpolant automaton has 240 states. [2018-07-23 13:44:43,781 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 362 transitions. [2018-07-23 13:44:43,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2018-07-23 13:44:43,781 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:44:43,782 INFO L357 BasicCegarLoop]: trace histogram [119, 119, 118, 1, 1, 1, 1] [2018-07-23 13:44:43,782 INFO L414 AbstractCegarLoop]: === Iteration 238 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:44:43,782 INFO L82 PathProgramCache]: Analyzing trace with hash -248401230, now seen corresponding path program 236 times [2018-07-23 13:44:43,782 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:44:44,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:44:44,616 INFO L134 CoverageAnalysis]: Checked inductivity of 21182 backedges. 7140 proven. 14042 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:44,616 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:44:44,616 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [122] total 122 [2018-07-23 13:44:44,616 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:44:44,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:44,617 INFO L185 omatonBuilderFactory]: Interpolants [256003#(<= 62 ULTIMATE.start_main_~k~5), 256002#(<= 61 ULTIMATE.start_main_~k~5), 256001#(<= 60 ULTIMATE.start_main_~k~5), 256000#(<= 59 ULTIMATE.start_main_~k~5), 256007#(<= 66 ULTIMATE.start_main_~k~5), 256006#(<= 65 ULTIMATE.start_main_~k~5), 256005#(<= 64 ULTIMATE.start_main_~k~5), 256004#(<= 63 ULTIMATE.start_main_~k~5), 256011#(<= 70 ULTIMATE.start_main_~k~5), 256010#(<= 69 ULTIMATE.start_main_~k~5), 256009#(<= 68 ULTIMATE.start_main_~k~5), 256008#(<= 67 ULTIMATE.start_main_~k~5), 256015#(<= 74 ULTIMATE.start_main_~k~5), 256014#(<= 73 ULTIMATE.start_main_~k~5), 256013#(<= 72 ULTIMATE.start_main_~k~5), 256012#(<= 71 ULTIMATE.start_main_~k~5), 256019#(<= 78 ULTIMATE.start_main_~k~5), 256018#(<= 77 ULTIMATE.start_main_~k~5), 256017#(<= 76 ULTIMATE.start_main_~k~5), 256016#(<= 75 ULTIMATE.start_main_~k~5), 256023#(<= 82 ULTIMATE.start_main_~k~5), 256022#(<= 81 ULTIMATE.start_main_~k~5), 256021#(<= 80 ULTIMATE.start_main_~k~5), 256020#(<= 79 ULTIMATE.start_main_~k~5), 256027#(<= 86 ULTIMATE.start_main_~k~5), 256026#(<= 85 ULTIMATE.start_main_~k~5), 256025#(<= 84 ULTIMATE.start_main_~k~5), 256024#(<= 83 ULTIMATE.start_main_~k~5), 256031#(<= 90 ULTIMATE.start_main_~k~5), 256030#(<= 89 ULTIMATE.start_main_~k~5), 256029#(<= 88 ULTIMATE.start_main_~k~5), 256028#(<= 87 ULTIMATE.start_main_~k~5), 256035#(<= 94 ULTIMATE.start_main_~k~5), 256034#(<= 93 ULTIMATE.start_main_~k~5), 256033#(<= 92 ULTIMATE.start_main_~k~5), 256032#(<= 91 ULTIMATE.start_main_~k~5), 256039#(<= 98 ULTIMATE.start_main_~k~5), 256038#(<= 97 ULTIMATE.start_main_~k~5), 256037#(<= 96 ULTIMATE.start_main_~k~5), 256036#(<= 95 ULTIMATE.start_main_~k~5), 256043#(<= 102 ULTIMATE.start_main_~k~5), 256042#(<= 101 ULTIMATE.start_main_~k~5), 256041#(<= 100 ULTIMATE.start_main_~k~5), 256040#(<= 99 ULTIMATE.start_main_~k~5), 256047#(<= 106 ULTIMATE.start_main_~k~5), 256046#(<= 105 ULTIMATE.start_main_~k~5), 256045#(<= 104 ULTIMATE.start_main_~k~5), 256044#(<= 103 ULTIMATE.start_main_~k~5), 256051#(<= 110 ULTIMATE.start_main_~k~5), 256050#(<= 109 ULTIMATE.start_main_~k~5), 256049#(<= 108 ULTIMATE.start_main_~k~5), 256048#(<= 107 ULTIMATE.start_main_~k~5), 256055#(<= 114 ULTIMATE.start_main_~k~5), 256054#(<= 113 ULTIMATE.start_main_~k~5), 256053#(<= 112 ULTIMATE.start_main_~k~5), 256052#(<= 111 ULTIMATE.start_main_~k~5), 256059#(<= 118 ULTIMATE.start_main_~k~5), 256058#(<= 117 ULTIMATE.start_main_~k~5), 256057#(<= 116 ULTIMATE.start_main_~k~5), 256056#(<= 115 ULTIMATE.start_main_~k~5), 256061#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 256060#(<= 119 ULTIMATE.start_main_~k~5), 255939#true, 255943#(<= 2 ULTIMATE.start_main_~k~5), 255942#(<= 1 ULTIMATE.start_main_~k~5), 255941#(<= 0 ULTIMATE.start_main_~k~5), 255940#false, 255947#(<= 6 ULTIMATE.start_main_~k~5), 255946#(<= 5 ULTIMATE.start_main_~k~5), 255945#(<= 4 ULTIMATE.start_main_~k~5), 255944#(<= 3 ULTIMATE.start_main_~k~5), 255951#(<= 10 ULTIMATE.start_main_~k~5), 255950#(<= 9 ULTIMATE.start_main_~k~5), 255949#(<= 8 ULTIMATE.start_main_~k~5), 255948#(<= 7 ULTIMATE.start_main_~k~5), 255955#(<= 14 ULTIMATE.start_main_~k~5), 255954#(<= 13 ULTIMATE.start_main_~k~5), 255953#(<= 12 ULTIMATE.start_main_~k~5), 255952#(<= 11 ULTIMATE.start_main_~k~5), 255959#(<= 18 ULTIMATE.start_main_~k~5), 255958#(<= 17 ULTIMATE.start_main_~k~5), 255957#(<= 16 ULTIMATE.start_main_~k~5), 255956#(<= 15 ULTIMATE.start_main_~k~5), 255963#(<= 22 ULTIMATE.start_main_~k~5), 255962#(<= 21 ULTIMATE.start_main_~k~5), 255961#(<= 20 ULTIMATE.start_main_~k~5), 255960#(<= 19 ULTIMATE.start_main_~k~5), 255967#(<= 26 ULTIMATE.start_main_~k~5), 255966#(<= 25 ULTIMATE.start_main_~k~5), 255965#(<= 24 ULTIMATE.start_main_~k~5), 255964#(<= 23 ULTIMATE.start_main_~k~5), 255971#(<= 30 ULTIMATE.start_main_~k~5), 255970#(<= 29 ULTIMATE.start_main_~k~5), 255969#(<= 28 ULTIMATE.start_main_~k~5), 255968#(<= 27 ULTIMATE.start_main_~k~5), 255975#(<= 34 ULTIMATE.start_main_~k~5), 255974#(<= 33 ULTIMATE.start_main_~k~5), 255973#(<= 32 ULTIMATE.start_main_~k~5), 255972#(<= 31 ULTIMATE.start_main_~k~5), 255979#(<= 38 ULTIMATE.start_main_~k~5), 255978#(<= 37 ULTIMATE.start_main_~k~5), 255977#(<= 36 ULTIMATE.start_main_~k~5), 255976#(<= 35 ULTIMATE.start_main_~k~5), 255983#(<= 42 ULTIMATE.start_main_~k~5), 255982#(<= 41 ULTIMATE.start_main_~k~5), 255981#(<= 40 ULTIMATE.start_main_~k~5), 255980#(<= 39 ULTIMATE.start_main_~k~5), 255987#(<= 46 ULTIMATE.start_main_~k~5), 255986#(<= 45 ULTIMATE.start_main_~k~5), 255985#(<= 44 ULTIMATE.start_main_~k~5), 255984#(<= 43 ULTIMATE.start_main_~k~5), 255991#(<= 50 ULTIMATE.start_main_~k~5), 255990#(<= 49 ULTIMATE.start_main_~k~5), 255989#(<= 48 ULTIMATE.start_main_~k~5), 255988#(<= 47 ULTIMATE.start_main_~k~5), 255995#(<= 54 ULTIMATE.start_main_~k~5), 255994#(<= 53 ULTIMATE.start_main_~k~5), 255993#(<= 52 ULTIMATE.start_main_~k~5), 255992#(<= 51 ULTIMATE.start_main_~k~5), 255999#(<= 58 ULTIMATE.start_main_~k~5), 255998#(<= 57 ULTIMATE.start_main_~k~5), 255997#(<= 56 ULTIMATE.start_main_~k~5), 255996#(<= 55 ULTIMATE.start_main_~k~5)] [2018-07-23 13:44:44,618 INFO L134 CoverageAnalysis]: Checked inductivity of 21182 backedges. 7140 proven. 14042 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:44,618 INFO L450 AbstractCegarLoop]: Interpolant automaton has 123 states [2018-07-23 13:44:44,619 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 123 interpolants. [2018-07-23 13:44:44,619 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7383, Invalid=7623, Unknown=0, NotChecked=0, Total=15006 [2018-07-23 13:44:44,619 INFO L87 Difference]: Start difference. First operand 361 states and 362 transitions. Second operand 123 states. [2018-07-23 13:44:45,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:44:45,248 INFO L93 Difference]: Finished difference Result 369 states and 370 transitions. [2018-07-23 13:44:45,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 242 states. [2018-07-23 13:44:45,248 INFO L78 Accepts]: Start accepts. Automaton has 123 states. Word has length 360 [2018-07-23 13:44:45,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:44:45,249 INFO L225 Difference]: With dead ends: 369 [2018-07-23 13:44:45,249 INFO L226 Difference]: Without dead ends: 367 [2018-07-23 13:44:45,251 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 241 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14280 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22143, Invalid=36663, Unknown=0, NotChecked=0, Total=58806 [2018-07-23 13:44:45,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2018-07-23 13:44:45,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 363. [2018-07-23 13:44:45,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2018-07-23 13:44:45,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 364 transitions. [2018-07-23 13:44:45,303 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 364 transitions. Word has length 360 [2018-07-23 13:44:45,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:44:45,303 INFO L471 AbstractCegarLoop]: Abstraction has 363 states and 364 transitions. [2018-07-23 13:44:45,303 INFO L472 AbstractCegarLoop]: Interpolant automaton has 123 states. [2018-07-23 13:44:45,303 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 364 transitions. [2018-07-23 13:44:45,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2018-07-23 13:44:45,304 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:44:45,304 INFO L357 BasicCegarLoop]: trace histogram [120, 119, 119, 1, 1, 1, 1] [2018-07-23 13:44:45,304 INFO L414 AbstractCegarLoop]: === Iteration 239 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:44:45,305 INFO L82 PathProgramCache]: Analyzing trace with hash 1804652570, now seen corresponding path program 237 times [2018-07-23 13:44:45,305 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:44:45,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:44:46,633 INFO L134 CoverageAnalysis]: Checked inductivity of 21420 backedges. 14280 proven. 7140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:46,634 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:44:46,634 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [241] total 241 [2018-07-23 13:44:46,634 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:44:46,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:46,635 INFO L185 omatonBuilderFactory]: Interpolants [257767#false, 257766#true, 257771#(<= ULTIMATE.start_main_~i~5 3), 257770#(<= ULTIMATE.start_main_~i~5 2), 257769#(<= ULTIMATE.start_main_~i~5 1), 257768#(<= ULTIMATE.start_main_~i~5 0), 257775#(<= ULTIMATE.start_main_~i~5 7), 257774#(<= ULTIMATE.start_main_~i~5 6), 257773#(<= ULTIMATE.start_main_~i~5 5), 257772#(<= ULTIMATE.start_main_~i~5 4), 257779#(<= ULTIMATE.start_main_~i~5 11), 257778#(<= ULTIMATE.start_main_~i~5 10), 257777#(<= ULTIMATE.start_main_~i~5 9), 257776#(<= ULTIMATE.start_main_~i~5 8), 257783#(<= ULTIMATE.start_main_~i~5 15), 257782#(<= ULTIMATE.start_main_~i~5 14), 257781#(<= ULTIMATE.start_main_~i~5 13), 257780#(<= ULTIMATE.start_main_~i~5 12), 257787#(<= ULTIMATE.start_main_~i~5 19), 257786#(<= ULTIMATE.start_main_~i~5 18), 257785#(<= ULTIMATE.start_main_~i~5 17), 257784#(<= ULTIMATE.start_main_~i~5 16), 257791#(<= ULTIMATE.start_main_~i~5 23), 257790#(<= ULTIMATE.start_main_~i~5 22), 257789#(<= ULTIMATE.start_main_~i~5 21), 257788#(<= ULTIMATE.start_main_~i~5 20), 257795#(<= ULTIMATE.start_main_~i~5 27), 257794#(<= ULTIMATE.start_main_~i~5 26), 257793#(<= ULTIMATE.start_main_~i~5 25), 257792#(<= ULTIMATE.start_main_~i~5 24), 257799#(<= ULTIMATE.start_main_~i~5 31), 257798#(<= ULTIMATE.start_main_~i~5 30), 257797#(<= ULTIMATE.start_main_~i~5 29), 257796#(<= ULTIMATE.start_main_~i~5 28), 257803#(<= ULTIMATE.start_main_~i~5 35), 257802#(<= ULTIMATE.start_main_~i~5 34), 257801#(<= ULTIMATE.start_main_~i~5 33), 257800#(<= ULTIMATE.start_main_~i~5 32), 257807#(<= ULTIMATE.start_main_~i~5 39), 257806#(<= ULTIMATE.start_main_~i~5 38), 257805#(<= ULTIMATE.start_main_~i~5 37), 257804#(<= ULTIMATE.start_main_~i~5 36), 257811#(<= ULTIMATE.start_main_~i~5 43), 257810#(<= ULTIMATE.start_main_~i~5 42), 257809#(<= ULTIMATE.start_main_~i~5 41), 257808#(<= ULTIMATE.start_main_~i~5 40), 257815#(<= ULTIMATE.start_main_~i~5 47), 257814#(<= ULTIMATE.start_main_~i~5 46), 257813#(<= ULTIMATE.start_main_~i~5 45), 257812#(<= ULTIMATE.start_main_~i~5 44), 257819#(<= ULTIMATE.start_main_~i~5 51), 257818#(<= ULTIMATE.start_main_~i~5 50), 257817#(<= ULTIMATE.start_main_~i~5 49), 257816#(<= ULTIMATE.start_main_~i~5 48), 257823#(<= ULTIMATE.start_main_~i~5 55), 257822#(<= ULTIMATE.start_main_~i~5 54), 257821#(<= ULTIMATE.start_main_~i~5 53), 257820#(<= ULTIMATE.start_main_~i~5 52), 257827#(<= ULTIMATE.start_main_~i~5 59), 257826#(<= ULTIMATE.start_main_~i~5 58), 257825#(<= ULTIMATE.start_main_~i~5 57), 257824#(<= ULTIMATE.start_main_~i~5 56), 257831#(<= ULTIMATE.start_main_~i~5 63), 257830#(<= ULTIMATE.start_main_~i~5 62), 257829#(<= ULTIMATE.start_main_~i~5 61), 257828#(<= ULTIMATE.start_main_~i~5 60), 257835#(<= ULTIMATE.start_main_~i~5 67), 257834#(<= ULTIMATE.start_main_~i~5 66), 257833#(<= ULTIMATE.start_main_~i~5 65), 257832#(<= ULTIMATE.start_main_~i~5 64), 257839#(<= ULTIMATE.start_main_~i~5 71), 257838#(<= ULTIMATE.start_main_~i~5 70), 257837#(<= ULTIMATE.start_main_~i~5 69), 257836#(<= ULTIMATE.start_main_~i~5 68), 257843#(<= ULTIMATE.start_main_~i~5 75), 257842#(<= ULTIMATE.start_main_~i~5 74), 257841#(<= ULTIMATE.start_main_~i~5 73), 257840#(<= ULTIMATE.start_main_~i~5 72), 257847#(<= ULTIMATE.start_main_~i~5 79), 257846#(<= ULTIMATE.start_main_~i~5 78), 257845#(<= ULTIMATE.start_main_~i~5 77), 257844#(<= ULTIMATE.start_main_~i~5 76), 257851#(<= ULTIMATE.start_main_~i~5 83), 257850#(<= ULTIMATE.start_main_~i~5 82), 257849#(<= ULTIMATE.start_main_~i~5 81), 257848#(<= ULTIMATE.start_main_~i~5 80), 257855#(<= ULTIMATE.start_main_~i~5 87), 257854#(<= ULTIMATE.start_main_~i~5 86), 257853#(<= ULTIMATE.start_main_~i~5 85), 257852#(<= ULTIMATE.start_main_~i~5 84), 257859#(<= ULTIMATE.start_main_~i~5 91), 257858#(<= ULTIMATE.start_main_~i~5 90), 257857#(<= ULTIMATE.start_main_~i~5 89), 257856#(<= ULTIMATE.start_main_~i~5 88), 257863#(<= ULTIMATE.start_main_~i~5 95), 257862#(<= ULTIMATE.start_main_~i~5 94), 257861#(<= ULTIMATE.start_main_~i~5 93), 257860#(<= ULTIMATE.start_main_~i~5 92), 257867#(<= ULTIMATE.start_main_~i~5 99), 257866#(<= ULTIMATE.start_main_~i~5 98), 257865#(<= ULTIMATE.start_main_~i~5 97), 257864#(<= ULTIMATE.start_main_~i~5 96), 257871#(<= ULTIMATE.start_main_~i~5 103), 257870#(<= ULTIMATE.start_main_~i~5 102), 257869#(<= ULTIMATE.start_main_~i~5 101), 257868#(<= ULTIMATE.start_main_~i~5 100), 257875#(<= ULTIMATE.start_main_~i~5 107), 257874#(<= ULTIMATE.start_main_~i~5 106), 257873#(<= ULTIMATE.start_main_~i~5 105), 257872#(<= ULTIMATE.start_main_~i~5 104), 257879#(<= ULTIMATE.start_main_~i~5 111), 257878#(<= ULTIMATE.start_main_~i~5 110), 257877#(<= ULTIMATE.start_main_~i~5 109), 257876#(<= ULTIMATE.start_main_~i~5 108), 257883#(<= ULTIMATE.start_main_~i~5 115), 257882#(<= ULTIMATE.start_main_~i~5 114), 257881#(<= ULTIMATE.start_main_~i~5 113), 257880#(<= ULTIMATE.start_main_~i~5 112), 257887#(<= ULTIMATE.start_main_~i~5 119), 257886#(<= ULTIMATE.start_main_~i~5 118), 257885#(<= ULTIMATE.start_main_~i~5 117), 257884#(<= ULTIMATE.start_main_~i~5 116), 257891#(<= ULTIMATE.start_main_~j~5 116), 257890#(<= ULTIMATE.start_main_~j~5 117), 257889#(<= ULTIMATE.start_main_~j~5 118), 257888#(<= ULTIMATE.start_main_~j~5 119), 257895#(<= ULTIMATE.start_main_~j~5 112), 257894#(<= ULTIMATE.start_main_~j~5 113), 257893#(<= ULTIMATE.start_main_~j~5 114), 257892#(<= ULTIMATE.start_main_~j~5 115), 257899#(<= ULTIMATE.start_main_~j~5 108), 257898#(<= ULTIMATE.start_main_~j~5 109), 257897#(<= ULTIMATE.start_main_~j~5 110), 257896#(<= ULTIMATE.start_main_~j~5 111), 257903#(<= ULTIMATE.start_main_~j~5 104), 257902#(<= ULTIMATE.start_main_~j~5 105), 257901#(<= ULTIMATE.start_main_~j~5 106), 257900#(<= ULTIMATE.start_main_~j~5 107), 257907#(<= ULTIMATE.start_main_~j~5 100), 257906#(<= ULTIMATE.start_main_~j~5 101), 257905#(<= ULTIMATE.start_main_~j~5 102), 257904#(<= ULTIMATE.start_main_~j~5 103), 257911#(<= ULTIMATE.start_main_~j~5 96), 257910#(<= ULTIMATE.start_main_~j~5 97), 257909#(<= ULTIMATE.start_main_~j~5 98), 257908#(<= ULTIMATE.start_main_~j~5 99), 257915#(<= ULTIMATE.start_main_~j~5 92), 257914#(<= ULTIMATE.start_main_~j~5 93), 257913#(<= ULTIMATE.start_main_~j~5 94), 257912#(<= ULTIMATE.start_main_~j~5 95), 257919#(<= ULTIMATE.start_main_~j~5 88), 257918#(<= ULTIMATE.start_main_~j~5 89), 257917#(<= ULTIMATE.start_main_~j~5 90), 257916#(<= ULTIMATE.start_main_~j~5 91), 257923#(<= ULTIMATE.start_main_~j~5 84), 257922#(<= ULTIMATE.start_main_~j~5 85), 257921#(<= ULTIMATE.start_main_~j~5 86), 257920#(<= ULTIMATE.start_main_~j~5 87), 257927#(<= ULTIMATE.start_main_~j~5 80), 257926#(<= ULTIMATE.start_main_~j~5 81), 257925#(<= ULTIMATE.start_main_~j~5 82), 257924#(<= ULTIMATE.start_main_~j~5 83), 257931#(<= ULTIMATE.start_main_~j~5 76), 257930#(<= ULTIMATE.start_main_~j~5 77), 257929#(<= ULTIMATE.start_main_~j~5 78), 257928#(<= ULTIMATE.start_main_~j~5 79), 257935#(<= ULTIMATE.start_main_~j~5 72), 257934#(<= ULTIMATE.start_main_~j~5 73), 257933#(<= ULTIMATE.start_main_~j~5 74), 257932#(<= ULTIMATE.start_main_~j~5 75), 257939#(<= ULTIMATE.start_main_~j~5 68), 257938#(<= ULTIMATE.start_main_~j~5 69), 257937#(<= ULTIMATE.start_main_~j~5 70), 257936#(<= ULTIMATE.start_main_~j~5 71), 257943#(<= ULTIMATE.start_main_~j~5 64), 257942#(<= ULTIMATE.start_main_~j~5 65), 257941#(<= ULTIMATE.start_main_~j~5 66), 257940#(<= ULTIMATE.start_main_~j~5 67), 257947#(<= ULTIMATE.start_main_~j~5 60), 257946#(<= ULTIMATE.start_main_~j~5 61), 257945#(<= ULTIMATE.start_main_~j~5 62), 257944#(<= ULTIMATE.start_main_~j~5 63), 257951#(<= ULTIMATE.start_main_~j~5 56), 257950#(<= ULTIMATE.start_main_~j~5 57), 257949#(<= ULTIMATE.start_main_~j~5 58), 257948#(<= ULTIMATE.start_main_~j~5 59), 257955#(<= ULTIMATE.start_main_~j~5 52), 257954#(<= ULTIMATE.start_main_~j~5 53), 257953#(<= ULTIMATE.start_main_~j~5 54), 257952#(<= ULTIMATE.start_main_~j~5 55), 257959#(<= ULTIMATE.start_main_~j~5 48), 257958#(<= ULTIMATE.start_main_~j~5 49), 257957#(<= ULTIMATE.start_main_~j~5 50), 257956#(<= ULTIMATE.start_main_~j~5 51), 257963#(<= ULTIMATE.start_main_~j~5 44), 257962#(<= ULTIMATE.start_main_~j~5 45), 257961#(<= ULTIMATE.start_main_~j~5 46), 257960#(<= ULTIMATE.start_main_~j~5 47), 257967#(<= ULTIMATE.start_main_~j~5 40), 257966#(<= ULTIMATE.start_main_~j~5 41), 257965#(<= ULTIMATE.start_main_~j~5 42), 257964#(<= ULTIMATE.start_main_~j~5 43), 257971#(<= ULTIMATE.start_main_~j~5 36), 257970#(<= ULTIMATE.start_main_~j~5 37), 257969#(<= ULTIMATE.start_main_~j~5 38), 257968#(<= ULTIMATE.start_main_~j~5 39), 257975#(<= ULTIMATE.start_main_~j~5 32), 257974#(<= ULTIMATE.start_main_~j~5 33), 257973#(<= ULTIMATE.start_main_~j~5 34), 257972#(<= ULTIMATE.start_main_~j~5 35), 257979#(<= ULTIMATE.start_main_~j~5 28), 257978#(<= ULTIMATE.start_main_~j~5 29), 257977#(<= ULTIMATE.start_main_~j~5 30), 257976#(<= ULTIMATE.start_main_~j~5 31), 257983#(<= ULTIMATE.start_main_~j~5 24), 257982#(<= ULTIMATE.start_main_~j~5 25), 257981#(<= ULTIMATE.start_main_~j~5 26), 257980#(<= ULTIMATE.start_main_~j~5 27), 257987#(<= ULTIMATE.start_main_~j~5 20), 257986#(<= ULTIMATE.start_main_~j~5 21), 257985#(<= ULTIMATE.start_main_~j~5 22), 257984#(<= ULTIMATE.start_main_~j~5 23), 257991#(<= ULTIMATE.start_main_~j~5 16), 257990#(<= ULTIMATE.start_main_~j~5 17), 257989#(<= ULTIMATE.start_main_~j~5 18), 257988#(<= ULTIMATE.start_main_~j~5 19), 257995#(<= ULTIMATE.start_main_~j~5 12), 257994#(<= ULTIMATE.start_main_~j~5 13), 257993#(<= ULTIMATE.start_main_~j~5 14), 257992#(<= ULTIMATE.start_main_~j~5 15), 257999#(<= ULTIMATE.start_main_~j~5 8), 257998#(<= ULTIMATE.start_main_~j~5 9), 257997#(<= ULTIMATE.start_main_~j~5 10), 257996#(<= ULTIMATE.start_main_~j~5 11), 258003#(<= ULTIMATE.start_main_~j~5 4), 258002#(<= ULTIMATE.start_main_~j~5 5), 258001#(<= ULTIMATE.start_main_~j~5 6), 258000#(<= ULTIMATE.start_main_~j~5 7), 258007#(<= ULTIMATE.start_main_~j~5 0), 258006#(<= ULTIMATE.start_main_~j~5 1), 258005#(<= ULTIMATE.start_main_~j~5 2), 258004#(<= ULTIMATE.start_main_~j~5 3)] [2018-07-23 13:44:46,636 INFO L134 CoverageAnalysis]: Checked inductivity of 21420 backedges. 14280 proven. 7140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:46,636 INFO L450 AbstractCegarLoop]: Interpolant automaton has 242 states [2018-07-23 13:44:46,637 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 242 interpolants. [2018-07-23 13:44:46,640 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14761, Invalid=43561, Unknown=0, NotChecked=0, Total=58322 [2018-07-23 13:44:46,640 INFO L87 Difference]: Start difference. First operand 363 states and 364 transitions. Second operand 242 states. [2018-07-23 13:44:49,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:44:49,463 INFO L93 Difference]: Finished difference Result 607 states and 609 transitions. [2018-07-23 13:44:49,464 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 242 states. [2018-07-23 13:44:49,464 INFO L78 Accepts]: Start accepts. Automaton has 242 states. Word has length 362 [2018-07-23 13:44:49,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:44:49,464 INFO L225 Difference]: With dead ends: 607 [2018-07-23 13:44:49,464 INFO L226 Difference]: Without dead ends: 364 [2018-07-23 13:44:49,467 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 360 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21301 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=29521, Invalid=101161, Unknown=0, NotChecked=0, Total=130682 [2018-07-23 13:44:49,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2018-07-23 13:44:49,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 364. [2018-07-23 13:44:49,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 364 states. [2018-07-23 13:44:49,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 365 transitions. [2018-07-23 13:44:49,518 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 365 transitions. Word has length 362 [2018-07-23 13:44:49,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:44:49,518 INFO L471 AbstractCegarLoop]: Abstraction has 364 states and 365 transitions. [2018-07-23 13:44:49,518 INFO L472 AbstractCegarLoop]: Interpolant automaton has 242 states. [2018-07-23 13:44:49,518 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 365 transitions. [2018-07-23 13:44:49,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2018-07-23 13:44:49,519 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:44:49,519 INFO L357 BasicCegarLoop]: trace histogram [120, 120, 119, 1, 1, 1, 1] [2018-07-23 13:44:49,520 INFO L414 AbstractCegarLoop]: === Iteration 240 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:44:49,520 INFO L82 PathProgramCache]: Analyzing trace with hash -2009174957, now seen corresponding path program 238 times [2018-07-23 13:44:49,520 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:44:49,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:44:50,381 INFO L134 CoverageAnalysis]: Checked inductivity of 21540 backedges. 7260 proven. 14280 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:50,381 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:44:50,381 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [123] total 123 [2018-07-23 13:44:50,381 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:44:50,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:50,382 INFO L185 omatonBuilderFactory]: Interpolants [260191#false, 260190#true, 260195#(<= 3 ULTIMATE.start_main_~k~5), 260194#(<= 2 ULTIMATE.start_main_~k~5), 260193#(<= 1 ULTIMATE.start_main_~k~5), 260192#(<= 0 ULTIMATE.start_main_~k~5), 260199#(<= 7 ULTIMATE.start_main_~k~5), 260198#(<= 6 ULTIMATE.start_main_~k~5), 260197#(<= 5 ULTIMATE.start_main_~k~5), 260196#(<= 4 ULTIMATE.start_main_~k~5), 260203#(<= 11 ULTIMATE.start_main_~k~5), 260202#(<= 10 ULTIMATE.start_main_~k~5), 260201#(<= 9 ULTIMATE.start_main_~k~5), 260200#(<= 8 ULTIMATE.start_main_~k~5), 260207#(<= 15 ULTIMATE.start_main_~k~5), 260206#(<= 14 ULTIMATE.start_main_~k~5), 260205#(<= 13 ULTIMATE.start_main_~k~5), 260204#(<= 12 ULTIMATE.start_main_~k~5), 260211#(<= 19 ULTIMATE.start_main_~k~5), 260210#(<= 18 ULTIMATE.start_main_~k~5), 260209#(<= 17 ULTIMATE.start_main_~k~5), 260208#(<= 16 ULTIMATE.start_main_~k~5), 260215#(<= 23 ULTIMATE.start_main_~k~5), 260214#(<= 22 ULTIMATE.start_main_~k~5), 260213#(<= 21 ULTIMATE.start_main_~k~5), 260212#(<= 20 ULTIMATE.start_main_~k~5), 260219#(<= 27 ULTIMATE.start_main_~k~5), 260218#(<= 26 ULTIMATE.start_main_~k~5), 260217#(<= 25 ULTIMATE.start_main_~k~5), 260216#(<= 24 ULTIMATE.start_main_~k~5), 260223#(<= 31 ULTIMATE.start_main_~k~5), 260222#(<= 30 ULTIMATE.start_main_~k~5), 260221#(<= 29 ULTIMATE.start_main_~k~5), 260220#(<= 28 ULTIMATE.start_main_~k~5), 260227#(<= 35 ULTIMATE.start_main_~k~5), 260226#(<= 34 ULTIMATE.start_main_~k~5), 260225#(<= 33 ULTIMATE.start_main_~k~5), 260224#(<= 32 ULTIMATE.start_main_~k~5), 260231#(<= 39 ULTIMATE.start_main_~k~5), 260230#(<= 38 ULTIMATE.start_main_~k~5), 260229#(<= 37 ULTIMATE.start_main_~k~5), 260228#(<= 36 ULTIMATE.start_main_~k~5), 260235#(<= 43 ULTIMATE.start_main_~k~5), 260234#(<= 42 ULTIMATE.start_main_~k~5), 260233#(<= 41 ULTIMATE.start_main_~k~5), 260232#(<= 40 ULTIMATE.start_main_~k~5), 260239#(<= 47 ULTIMATE.start_main_~k~5), 260238#(<= 46 ULTIMATE.start_main_~k~5), 260237#(<= 45 ULTIMATE.start_main_~k~5), 260236#(<= 44 ULTIMATE.start_main_~k~5), 260243#(<= 51 ULTIMATE.start_main_~k~5), 260242#(<= 50 ULTIMATE.start_main_~k~5), 260241#(<= 49 ULTIMATE.start_main_~k~5), 260240#(<= 48 ULTIMATE.start_main_~k~5), 260247#(<= 55 ULTIMATE.start_main_~k~5), 260246#(<= 54 ULTIMATE.start_main_~k~5), 260245#(<= 53 ULTIMATE.start_main_~k~5), 260244#(<= 52 ULTIMATE.start_main_~k~5), 260251#(<= 59 ULTIMATE.start_main_~k~5), 260250#(<= 58 ULTIMATE.start_main_~k~5), 260249#(<= 57 ULTIMATE.start_main_~k~5), 260248#(<= 56 ULTIMATE.start_main_~k~5), 260255#(<= 63 ULTIMATE.start_main_~k~5), 260254#(<= 62 ULTIMATE.start_main_~k~5), 260253#(<= 61 ULTIMATE.start_main_~k~5), 260252#(<= 60 ULTIMATE.start_main_~k~5), 260259#(<= 67 ULTIMATE.start_main_~k~5), 260258#(<= 66 ULTIMATE.start_main_~k~5), 260257#(<= 65 ULTIMATE.start_main_~k~5), 260256#(<= 64 ULTIMATE.start_main_~k~5), 260263#(<= 71 ULTIMATE.start_main_~k~5), 260262#(<= 70 ULTIMATE.start_main_~k~5), 260261#(<= 69 ULTIMATE.start_main_~k~5), 260260#(<= 68 ULTIMATE.start_main_~k~5), 260267#(<= 75 ULTIMATE.start_main_~k~5), 260266#(<= 74 ULTIMATE.start_main_~k~5), 260265#(<= 73 ULTIMATE.start_main_~k~5), 260264#(<= 72 ULTIMATE.start_main_~k~5), 260271#(<= 79 ULTIMATE.start_main_~k~5), 260270#(<= 78 ULTIMATE.start_main_~k~5), 260269#(<= 77 ULTIMATE.start_main_~k~5), 260268#(<= 76 ULTIMATE.start_main_~k~5), 260275#(<= 83 ULTIMATE.start_main_~k~5), 260274#(<= 82 ULTIMATE.start_main_~k~5), 260273#(<= 81 ULTIMATE.start_main_~k~5), 260272#(<= 80 ULTIMATE.start_main_~k~5), 260279#(<= 87 ULTIMATE.start_main_~k~5), 260278#(<= 86 ULTIMATE.start_main_~k~5), 260277#(<= 85 ULTIMATE.start_main_~k~5), 260276#(<= 84 ULTIMATE.start_main_~k~5), 260283#(<= 91 ULTIMATE.start_main_~k~5), 260282#(<= 90 ULTIMATE.start_main_~k~5), 260281#(<= 89 ULTIMATE.start_main_~k~5), 260280#(<= 88 ULTIMATE.start_main_~k~5), 260287#(<= 95 ULTIMATE.start_main_~k~5), 260286#(<= 94 ULTIMATE.start_main_~k~5), 260285#(<= 93 ULTIMATE.start_main_~k~5), 260284#(<= 92 ULTIMATE.start_main_~k~5), 260291#(<= 99 ULTIMATE.start_main_~k~5), 260290#(<= 98 ULTIMATE.start_main_~k~5), 260289#(<= 97 ULTIMATE.start_main_~k~5), 260288#(<= 96 ULTIMATE.start_main_~k~5), 260295#(<= 103 ULTIMATE.start_main_~k~5), 260294#(<= 102 ULTIMATE.start_main_~k~5), 260293#(<= 101 ULTIMATE.start_main_~k~5), 260292#(<= 100 ULTIMATE.start_main_~k~5), 260299#(<= 107 ULTIMATE.start_main_~k~5), 260298#(<= 106 ULTIMATE.start_main_~k~5), 260297#(<= 105 ULTIMATE.start_main_~k~5), 260296#(<= 104 ULTIMATE.start_main_~k~5), 260303#(<= 111 ULTIMATE.start_main_~k~5), 260302#(<= 110 ULTIMATE.start_main_~k~5), 260301#(<= 109 ULTIMATE.start_main_~k~5), 260300#(<= 108 ULTIMATE.start_main_~k~5), 260307#(<= 115 ULTIMATE.start_main_~k~5), 260306#(<= 114 ULTIMATE.start_main_~k~5), 260305#(<= 113 ULTIMATE.start_main_~k~5), 260304#(<= 112 ULTIMATE.start_main_~k~5), 260311#(<= 119 ULTIMATE.start_main_~k~5), 260310#(<= 118 ULTIMATE.start_main_~k~5), 260309#(<= 117 ULTIMATE.start_main_~k~5), 260308#(<= 116 ULTIMATE.start_main_~k~5), 260313#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 260312#(<= 120 ULTIMATE.start_main_~k~5)] [2018-07-23 13:44:50,383 INFO L134 CoverageAnalysis]: Checked inductivity of 21540 backedges. 7260 proven. 14280 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:50,383 INFO L450 AbstractCegarLoop]: Interpolant automaton has 124 states [2018-07-23 13:44:50,384 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 124 interpolants. [2018-07-23 13:44:50,384 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7505, Invalid=7747, Unknown=0, NotChecked=0, Total=15252 [2018-07-23 13:44:50,385 INFO L87 Difference]: Start difference. First operand 364 states and 365 transitions. Second operand 124 states. [2018-07-23 13:44:50,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:44:50,975 INFO L93 Difference]: Finished difference Result 372 states and 373 transitions. [2018-07-23 13:44:50,975 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 244 states. [2018-07-23 13:44:50,975 INFO L78 Accepts]: Start accepts. Automaton has 124 states. Word has length 363 [2018-07-23 13:44:50,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:44:50,976 INFO L225 Difference]: With dead ends: 372 [2018-07-23 13:44:50,976 INFO L226 Difference]: Without dead ends: 370 [2018-07-23 13:44:50,979 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 243 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14520 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=22509, Invalid=37271, Unknown=0, NotChecked=0, Total=59780 [2018-07-23 13:44:50,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2018-07-23 13:44:51,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 366. [2018-07-23 13:44:51,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 366 states. [2018-07-23 13:44:51,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 367 transitions. [2018-07-23 13:44:51,032 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 367 transitions. Word has length 363 [2018-07-23 13:44:51,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:44:51,032 INFO L471 AbstractCegarLoop]: Abstraction has 366 states and 367 transitions. [2018-07-23 13:44:51,032 INFO L472 AbstractCegarLoop]: Interpolant automaton has 124 states. [2018-07-23 13:44:51,032 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 367 transitions. [2018-07-23 13:44:51,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2018-07-23 13:44:51,033 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:44:51,033 INFO L357 BasicCegarLoop]: trace histogram [121, 120, 120, 1, 1, 1, 1] [2018-07-23 13:44:51,034 INFO L414 AbstractCegarLoop]: === Iteration 241 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:44:51,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1918215547, now seen corresponding path program 239 times [2018-07-23 13:44:51,034 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:44:51,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:44:52,589 INFO L134 CoverageAnalysis]: Checked inductivity of 21780 backedges. 14520 proven. 7260 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:52,589 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:44:52,589 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [243] total 243 [2018-07-23 13:44:52,589 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:44:52,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:52,590 INFO L185 omatonBuilderFactory]: Interpolants [262148#(<= ULTIMATE.start_main_~i~5 114), 262149#(<= ULTIMATE.start_main_~i~5 115), 262150#(<= ULTIMATE.start_main_~i~5 116), 262151#(<= ULTIMATE.start_main_~i~5 117), 262144#(<= ULTIMATE.start_main_~i~5 110), 262145#(<= ULTIMATE.start_main_~i~5 111), 262146#(<= ULTIMATE.start_main_~i~5 112), 262147#(<= ULTIMATE.start_main_~i~5 113), 262156#(<= ULTIMATE.start_main_~j~5 119), 262157#(<= ULTIMATE.start_main_~j~5 118), 262158#(<= ULTIMATE.start_main_~j~5 117), 262159#(<= ULTIMATE.start_main_~j~5 116), 262152#(<= ULTIMATE.start_main_~i~5 118), 262153#(<= ULTIMATE.start_main_~i~5 119), 262154#(<= ULTIMATE.start_main_~i~5 120), 262155#(<= ULTIMATE.start_main_~j~5 120), 262164#(<= ULTIMATE.start_main_~j~5 111), 262165#(<= ULTIMATE.start_main_~j~5 110), 262166#(<= ULTIMATE.start_main_~j~5 109), 262167#(<= ULTIMATE.start_main_~j~5 108), 262160#(<= ULTIMATE.start_main_~j~5 115), 262161#(<= ULTIMATE.start_main_~j~5 114), 262162#(<= ULTIMATE.start_main_~j~5 113), 262163#(<= ULTIMATE.start_main_~j~5 112), 262172#(<= ULTIMATE.start_main_~j~5 103), 262173#(<= ULTIMATE.start_main_~j~5 102), 262174#(<= ULTIMATE.start_main_~j~5 101), 262175#(<= ULTIMATE.start_main_~j~5 100), 262168#(<= ULTIMATE.start_main_~j~5 107), 262169#(<= ULTIMATE.start_main_~j~5 106), 262170#(<= ULTIMATE.start_main_~j~5 105), 262171#(<= ULTIMATE.start_main_~j~5 104), 262180#(<= ULTIMATE.start_main_~j~5 95), 262181#(<= ULTIMATE.start_main_~j~5 94), 262182#(<= ULTIMATE.start_main_~j~5 93), 262183#(<= ULTIMATE.start_main_~j~5 92), 262176#(<= ULTIMATE.start_main_~j~5 99), 262177#(<= ULTIMATE.start_main_~j~5 98), 262178#(<= ULTIMATE.start_main_~j~5 97), 262179#(<= ULTIMATE.start_main_~j~5 96), 262188#(<= ULTIMATE.start_main_~j~5 87), 262189#(<= ULTIMATE.start_main_~j~5 86), 262190#(<= ULTIMATE.start_main_~j~5 85), 262191#(<= ULTIMATE.start_main_~j~5 84), 262184#(<= ULTIMATE.start_main_~j~5 91), 262185#(<= ULTIMATE.start_main_~j~5 90), 262186#(<= ULTIMATE.start_main_~j~5 89), 262187#(<= ULTIMATE.start_main_~j~5 88), 262196#(<= ULTIMATE.start_main_~j~5 79), 262197#(<= ULTIMATE.start_main_~j~5 78), 262198#(<= ULTIMATE.start_main_~j~5 77), 262199#(<= ULTIMATE.start_main_~j~5 76), 262192#(<= ULTIMATE.start_main_~j~5 83), 262193#(<= ULTIMATE.start_main_~j~5 82), 262194#(<= ULTIMATE.start_main_~j~5 81), 262195#(<= ULTIMATE.start_main_~j~5 80), 262204#(<= ULTIMATE.start_main_~j~5 71), 262205#(<= ULTIMATE.start_main_~j~5 70), 262206#(<= ULTIMATE.start_main_~j~5 69), 262207#(<= ULTIMATE.start_main_~j~5 68), 262200#(<= ULTIMATE.start_main_~j~5 75), 262201#(<= ULTIMATE.start_main_~j~5 74), 262202#(<= ULTIMATE.start_main_~j~5 73), 262203#(<= ULTIMATE.start_main_~j~5 72), 262212#(<= ULTIMATE.start_main_~j~5 63), 262213#(<= ULTIMATE.start_main_~j~5 62), 262214#(<= ULTIMATE.start_main_~j~5 61), 262215#(<= ULTIMATE.start_main_~j~5 60), 262208#(<= ULTIMATE.start_main_~j~5 67), 262209#(<= ULTIMATE.start_main_~j~5 66), 262210#(<= ULTIMATE.start_main_~j~5 65), 262211#(<= ULTIMATE.start_main_~j~5 64), 262220#(<= ULTIMATE.start_main_~j~5 55), 262221#(<= ULTIMATE.start_main_~j~5 54), 262222#(<= ULTIMATE.start_main_~j~5 53), 262223#(<= ULTIMATE.start_main_~j~5 52), 262216#(<= ULTIMATE.start_main_~j~5 59), 262217#(<= ULTIMATE.start_main_~j~5 58), 262218#(<= ULTIMATE.start_main_~j~5 57), 262219#(<= ULTIMATE.start_main_~j~5 56), 262228#(<= ULTIMATE.start_main_~j~5 47), 262229#(<= ULTIMATE.start_main_~j~5 46), 262230#(<= ULTIMATE.start_main_~j~5 45), 262231#(<= ULTIMATE.start_main_~j~5 44), 262224#(<= ULTIMATE.start_main_~j~5 51), 262225#(<= ULTIMATE.start_main_~j~5 50), 262226#(<= ULTIMATE.start_main_~j~5 49), 262227#(<= ULTIMATE.start_main_~j~5 48), 262236#(<= ULTIMATE.start_main_~j~5 39), 262237#(<= ULTIMATE.start_main_~j~5 38), 262238#(<= ULTIMATE.start_main_~j~5 37), 262239#(<= ULTIMATE.start_main_~j~5 36), 262232#(<= ULTIMATE.start_main_~j~5 43), 262233#(<= ULTIMATE.start_main_~j~5 42), 262234#(<= ULTIMATE.start_main_~j~5 41), 262235#(<= ULTIMATE.start_main_~j~5 40), 262244#(<= ULTIMATE.start_main_~j~5 31), 262245#(<= ULTIMATE.start_main_~j~5 30), 262246#(<= ULTIMATE.start_main_~j~5 29), 262247#(<= ULTIMATE.start_main_~j~5 28), 262240#(<= ULTIMATE.start_main_~j~5 35), 262241#(<= ULTIMATE.start_main_~j~5 34), 262242#(<= ULTIMATE.start_main_~j~5 33), 262243#(<= ULTIMATE.start_main_~j~5 32), 262252#(<= ULTIMATE.start_main_~j~5 23), 262253#(<= ULTIMATE.start_main_~j~5 22), 262254#(<= ULTIMATE.start_main_~j~5 21), 262255#(<= ULTIMATE.start_main_~j~5 20), 262248#(<= ULTIMATE.start_main_~j~5 27), 262249#(<= ULTIMATE.start_main_~j~5 26), 262250#(<= ULTIMATE.start_main_~j~5 25), 262251#(<= ULTIMATE.start_main_~j~5 24), 262260#(<= ULTIMATE.start_main_~j~5 15), 262261#(<= ULTIMATE.start_main_~j~5 14), 262262#(<= ULTIMATE.start_main_~j~5 13), 262263#(<= ULTIMATE.start_main_~j~5 12), 262256#(<= ULTIMATE.start_main_~j~5 19), 262257#(<= ULTIMATE.start_main_~j~5 18), 262258#(<= ULTIMATE.start_main_~j~5 17), 262259#(<= ULTIMATE.start_main_~j~5 16), 262268#(<= ULTIMATE.start_main_~j~5 7), 262269#(<= ULTIMATE.start_main_~j~5 6), 262270#(<= ULTIMATE.start_main_~j~5 5), 262271#(<= ULTIMATE.start_main_~j~5 4), 262264#(<= ULTIMATE.start_main_~j~5 11), 262265#(<= ULTIMATE.start_main_~j~5 10), 262266#(<= ULTIMATE.start_main_~j~5 9), 262267#(<= ULTIMATE.start_main_~j~5 8), 262272#(<= ULTIMATE.start_main_~j~5 3), 262273#(<= ULTIMATE.start_main_~j~5 2), 262274#(<= ULTIMATE.start_main_~j~5 1), 262275#(<= ULTIMATE.start_main_~j~5 0), 262035#(<= ULTIMATE.start_main_~i~5 1), 262034#(<= ULTIMATE.start_main_~i~5 0), 262033#false, 262032#true, 262039#(<= ULTIMATE.start_main_~i~5 5), 262038#(<= ULTIMATE.start_main_~i~5 4), 262037#(<= ULTIMATE.start_main_~i~5 3), 262036#(<= ULTIMATE.start_main_~i~5 2), 262043#(<= ULTIMATE.start_main_~i~5 9), 262042#(<= ULTIMATE.start_main_~i~5 8), 262041#(<= ULTIMATE.start_main_~i~5 7), 262040#(<= ULTIMATE.start_main_~i~5 6), 262047#(<= ULTIMATE.start_main_~i~5 13), 262046#(<= ULTIMATE.start_main_~i~5 12), 262045#(<= ULTIMATE.start_main_~i~5 11), 262044#(<= ULTIMATE.start_main_~i~5 10), 262051#(<= ULTIMATE.start_main_~i~5 17), 262050#(<= ULTIMATE.start_main_~i~5 16), 262049#(<= ULTIMATE.start_main_~i~5 15), 262048#(<= ULTIMATE.start_main_~i~5 14), 262055#(<= ULTIMATE.start_main_~i~5 21), 262054#(<= ULTIMATE.start_main_~i~5 20), 262053#(<= ULTIMATE.start_main_~i~5 19), 262052#(<= ULTIMATE.start_main_~i~5 18), 262059#(<= ULTIMATE.start_main_~i~5 25), 262058#(<= ULTIMATE.start_main_~i~5 24), 262057#(<= ULTIMATE.start_main_~i~5 23), 262056#(<= ULTIMATE.start_main_~i~5 22), 262063#(<= ULTIMATE.start_main_~i~5 29), 262062#(<= ULTIMATE.start_main_~i~5 28), 262061#(<= ULTIMATE.start_main_~i~5 27), 262060#(<= ULTIMATE.start_main_~i~5 26), 262067#(<= ULTIMATE.start_main_~i~5 33), 262066#(<= ULTIMATE.start_main_~i~5 32), 262065#(<= ULTIMATE.start_main_~i~5 31), 262064#(<= ULTIMATE.start_main_~i~5 30), 262071#(<= ULTIMATE.start_main_~i~5 37), 262070#(<= ULTIMATE.start_main_~i~5 36), 262069#(<= ULTIMATE.start_main_~i~5 35), 262068#(<= ULTIMATE.start_main_~i~5 34), 262075#(<= ULTIMATE.start_main_~i~5 41), 262074#(<= ULTIMATE.start_main_~i~5 40), 262073#(<= ULTIMATE.start_main_~i~5 39), 262072#(<= ULTIMATE.start_main_~i~5 38), 262079#(<= ULTIMATE.start_main_~i~5 45), 262078#(<= ULTIMATE.start_main_~i~5 44), 262077#(<= ULTIMATE.start_main_~i~5 43), 262076#(<= ULTIMATE.start_main_~i~5 42), 262083#(<= ULTIMATE.start_main_~i~5 49), 262082#(<= ULTIMATE.start_main_~i~5 48), 262081#(<= ULTIMATE.start_main_~i~5 47), 262080#(<= ULTIMATE.start_main_~i~5 46), 262087#(<= ULTIMATE.start_main_~i~5 53), 262086#(<= ULTIMATE.start_main_~i~5 52), 262085#(<= ULTIMATE.start_main_~i~5 51), 262084#(<= ULTIMATE.start_main_~i~5 50), 262091#(<= ULTIMATE.start_main_~i~5 57), 262090#(<= ULTIMATE.start_main_~i~5 56), 262089#(<= ULTIMATE.start_main_~i~5 55), 262088#(<= ULTIMATE.start_main_~i~5 54), 262095#(<= ULTIMATE.start_main_~i~5 61), 262094#(<= ULTIMATE.start_main_~i~5 60), 262093#(<= ULTIMATE.start_main_~i~5 59), 262092#(<= ULTIMATE.start_main_~i~5 58), 262099#(<= ULTIMATE.start_main_~i~5 65), 262098#(<= ULTIMATE.start_main_~i~5 64), 262097#(<= ULTIMATE.start_main_~i~5 63), 262096#(<= ULTIMATE.start_main_~i~5 62), 262103#(<= ULTIMATE.start_main_~i~5 69), 262102#(<= ULTIMATE.start_main_~i~5 68), 262101#(<= ULTIMATE.start_main_~i~5 67), 262100#(<= ULTIMATE.start_main_~i~5 66), 262107#(<= ULTIMATE.start_main_~i~5 73), 262106#(<= ULTIMATE.start_main_~i~5 72), 262105#(<= ULTIMATE.start_main_~i~5 71), 262104#(<= ULTIMATE.start_main_~i~5 70), 262111#(<= ULTIMATE.start_main_~i~5 77), 262110#(<= ULTIMATE.start_main_~i~5 76), 262109#(<= ULTIMATE.start_main_~i~5 75), 262108#(<= ULTIMATE.start_main_~i~5 74), 262115#(<= ULTIMATE.start_main_~i~5 81), 262114#(<= ULTIMATE.start_main_~i~5 80), 262113#(<= ULTIMATE.start_main_~i~5 79), 262112#(<= ULTIMATE.start_main_~i~5 78), 262119#(<= ULTIMATE.start_main_~i~5 85), 262118#(<= ULTIMATE.start_main_~i~5 84), 262117#(<= ULTIMATE.start_main_~i~5 83), 262116#(<= ULTIMATE.start_main_~i~5 82), 262123#(<= ULTIMATE.start_main_~i~5 89), 262122#(<= ULTIMATE.start_main_~i~5 88), 262121#(<= ULTIMATE.start_main_~i~5 87), 262120#(<= ULTIMATE.start_main_~i~5 86), 262127#(<= ULTIMATE.start_main_~i~5 93), 262126#(<= ULTIMATE.start_main_~i~5 92), 262125#(<= ULTIMATE.start_main_~i~5 91), 262124#(<= ULTIMATE.start_main_~i~5 90), 262131#(<= ULTIMATE.start_main_~i~5 97), 262130#(<= ULTIMATE.start_main_~i~5 96), 262129#(<= ULTIMATE.start_main_~i~5 95), 262128#(<= ULTIMATE.start_main_~i~5 94), 262135#(<= ULTIMATE.start_main_~i~5 101), 262134#(<= ULTIMATE.start_main_~i~5 100), 262133#(<= ULTIMATE.start_main_~i~5 99), 262132#(<= ULTIMATE.start_main_~i~5 98), 262139#(<= ULTIMATE.start_main_~i~5 105), 262138#(<= ULTIMATE.start_main_~i~5 104), 262137#(<= ULTIMATE.start_main_~i~5 103), 262136#(<= ULTIMATE.start_main_~i~5 102), 262143#(<= ULTIMATE.start_main_~i~5 109), 262142#(<= ULTIMATE.start_main_~i~5 108), 262141#(<= ULTIMATE.start_main_~i~5 107), 262140#(<= ULTIMATE.start_main_~i~5 106)] [2018-07-23 13:44:52,591 INFO L134 CoverageAnalysis]: Checked inductivity of 21780 backedges. 14520 proven. 7260 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:52,591 INFO L450 AbstractCegarLoop]: Interpolant automaton has 244 states [2018-07-23 13:44:52,592 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 244 interpolants. [2018-07-23 13:44:52,593 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15005, Invalid=44287, Unknown=0, NotChecked=0, Total=59292 [2018-07-23 13:44:52,593 INFO L87 Difference]: Start difference. First operand 366 states and 367 transitions. Second operand 244 states. [2018-07-23 13:44:54,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:44:54,370 INFO L93 Difference]: Finished difference Result 612 states and 614 transitions. [2018-07-23 13:44:54,370 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 244 states. [2018-07-23 13:44:54,370 INFO L78 Accepts]: Start accepts. Automaton has 244 states. Word has length 365 [2018-07-23 13:44:54,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:44:54,371 INFO L225 Difference]: With dead ends: 612 [2018-07-23 13:44:54,371 INFO L226 Difference]: Without dead ends: 367 [2018-07-23 13:44:54,376 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 363 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21660 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=30009, Invalid=102851, Unknown=0, NotChecked=0, Total=132860 [2018-07-23 13:44:54,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2018-07-23 13:44:54,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 367. [2018-07-23 13:44:54,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 367 states. [2018-07-23 13:44:54,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 368 transitions. [2018-07-23 13:44:54,428 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 368 transitions. Word has length 365 [2018-07-23 13:44:54,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:44:54,429 INFO L471 AbstractCegarLoop]: Abstraction has 367 states and 368 transitions. [2018-07-23 13:44:54,429 INFO L472 AbstractCegarLoop]: Interpolant automaton has 244 states. [2018-07-23 13:44:54,429 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 368 transitions. [2018-07-23 13:44:54,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2018-07-23 13:44:54,430 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:44:54,430 INFO L357 BasicCegarLoop]: trace histogram [121, 121, 120, 1, 1, 1, 1] [2018-07-23 13:44:54,430 INFO L414 AbstractCegarLoop]: === Iteration 242 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:44:54,430 INFO L82 PathProgramCache]: Analyzing trace with hash -1047760222, now seen corresponding path program 240 times [2018-07-23 13:44:54,430 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:44:54,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:44:55,305 INFO L134 CoverageAnalysis]: Checked inductivity of 21901 backedges. 7381 proven. 14520 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:55,305 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:44:55,305 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [124] total 124 [2018-07-23 13:44:55,306 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:44:55,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:55,306 INFO L185 omatonBuilderFactory]: Interpolants [264476#true, 264477#false, 264478#(<= 0 ULTIMATE.start_main_~k~5), 264479#(<= 1 ULTIMATE.start_main_~k~5), 264484#(<= 6 ULTIMATE.start_main_~k~5), 264485#(<= 7 ULTIMATE.start_main_~k~5), 264486#(<= 8 ULTIMATE.start_main_~k~5), 264487#(<= 9 ULTIMATE.start_main_~k~5), 264480#(<= 2 ULTIMATE.start_main_~k~5), 264481#(<= 3 ULTIMATE.start_main_~k~5), 264482#(<= 4 ULTIMATE.start_main_~k~5), 264483#(<= 5 ULTIMATE.start_main_~k~5), 264492#(<= 14 ULTIMATE.start_main_~k~5), 264493#(<= 15 ULTIMATE.start_main_~k~5), 264494#(<= 16 ULTIMATE.start_main_~k~5), 264495#(<= 17 ULTIMATE.start_main_~k~5), 264488#(<= 10 ULTIMATE.start_main_~k~5), 264489#(<= 11 ULTIMATE.start_main_~k~5), 264490#(<= 12 ULTIMATE.start_main_~k~5), 264491#(<= 13 ULTIMATE.start_main_~k~5), 264500#(<= 22 ULTIMATE.start_main_~k~5), 264501#(<= 23 ULTIMATE.start_main_~k~5), 264502#(<= 24 ULTIMATE.start_main_~k~5), 264503#(<= 25 ULTIMATE.start_main_~k~5), 264496#(<= 18 ULTIMATE.start_main_~k~5), 264497#(<= 19 ULTIMATE.start_main_~k~5), 264498#(<= 20 ULTIMATE.start_main_~k~5), 264499#(<= 21 ULTIMATE.start_main_~k~5), 264508#(<= 30 ULTIMATE.start_main_~k~5), 264509#(<= 31 ULTIMATE.start_main_~k~5), 264510#(<= 32 ULTIMATE.start_main_~k~5), 264511#(<= 33 ULTIMATE.start_main_~k~5), 264504#(<= 26 ULTIMATE.start_main_~k~5), 264505#(<= 27 ULTIMATE.start_main_~k~5), 264506#(<= 28 ULTIMATE.start_main_~k~5), 264507#(<= 29 ULTIMATE.start_main_~k~5), 264516#(<= 38 ULTIMATE.start_main_~k~5), 264517#(<= 39 ULTIMATE.start_main_~k~5), 264518#(<= 40 ULTIMATE.start_main_~k~5), 264519#(<= 41 ULTIMATE.start_main_~k~5), 264512#(<= 34 ULTIMATE.start_main_~k~5), 264513#(<= 35 ULTIMATE.start_main_~k~5), 264514#(<= 36 ULTIMATE.start_main_~k~5), 264515#(<= 37 ULTIMATE.start_main_~k~5), 264524#(<= 46 ULTIMATE.start_main_~k~5), 264525#(<= 47 ULTIMATE.start_main_~k~5), 264526#(<= 48 ULTIMATE.start_main_~k~5), 264527#(<= 49 ULTIMATE.start_main_~k~5), 264520#(<= 42 ULTIMATE.start_main_~k~5), 264521#(<= 43 ULTIMATE.start_main_~k~5), 264522#(<= 44 ULTIMATE.start_main_~k~5), 264523#(<= 45 ULTIMATE.start_main_~k~5), 264532#(<= 54 ULTIMATE.start_main_~k~5), 264533#(<= 55 ULTIMATE.start_main_~k~5), 264534#(<= 56 ULTIMATE.start_main_~k~5), 264535#(<= 57 ULTIMATE.start_main_~k~5), 264528#(<= 50 ULTIMATE.start_main_~k~5), 264529#(<= 51 ULTIMATE.start_main_~k~5), 264530#(<= 52 ULTIMATE.start_main_~k~5), 264531#(<= 53 ULTIMATE.start_main_~k~5), 264540#(<= 62 ULTIMATE.start_main_~k~5), 264541#(<= 63 ULTIMATE.start_main_~k~5), 264542#(<= 64 ULTIMATE.start_main_~k~5), 264543#(<= 65 ULTIMATE.start_main_~k~5), 264536#(<= 58 ULTIMATE.start_main_~k~5), 264537#(<= 59 ULTIMATE.start_main_~k~5), 264538#(<= 60 ULTIMATE.start_main_~k~5), 264539#(<= 61 ULTIMATE.start_main_~k~5), 264548#(<= 70 ULTIMATE.start_main_~k~5), 264549#(<= 71 ULTIMATE.start_main_~k~5), 264550#(<= 72 ULTIMATE.start_main_~k~5), 264551#(<= 73 ULTIMATE.start_main_~k~5), 264544#(<= 66 ULTIMATE.start_main_~k~5), 264545#(<= 67 ULTIMATE.start_main_~k~5), 264546#(<= 68 ULTIMATE.start_main_~k~5), 264547#(<= 69 ULTIMATE.start_main_~k~5), 264556#(<= 78 ULTIMATE.start_main_~k~5), 264557#(<= 79 ULTIMATE.start_main_~k~5), 264558#(<= 80 ULTIMATE.start_main_~k~5), 264559#(<= 81 ULTIMATE.start_main_~k~5), 264552#(<= 74 ULTIMATE.start_main_~k~5), 264553#(<= 75 ULTIMATE.start_main_~k~5), 264554#(<= 76 ULTIMATE.start_main_~k~5), 264555#(<= 77 ULTIMATE.start_main_~k~5), 264564#(<= 86 ULTIMATE.start_main_~k~5), 264565#(<= 87 ULTIMATE.start_main_~k~5), 264566#(<= 88 ULTIMATE.start_main_~k~5), 264567#(<= 89 ULTIMATE.start_main_~k~5), 264560#(<= 82 ULTIMATE.start_main_~k~5), 264561#(<= 83 ULTIMATE.start_main_~k~5), 264562#(<= 84 ULTIMATE.start_main_~k~5), 264563#(<= 85 ULTIMATE.start_main_~k~5), 264572#(<= 94 ULTIMATE.start_main_~k~5), 264573#(<= 95 ULTIMATE.start_main_~k~5), 264574#(<= 96 ULTIMATE.start_main_~k~5), 264575#(<= 97 ULTIMATE.start_main_~k~5), 264568#(<= 90 ULTIMATE.start_main_~k~5), 264569#(<= 91 ULTIMATE.start_main_~k~5), 264570#(<= 92 ULTIMATE.start_main_~k~5), 264571#(<= 93 ULTIMATE.start_main_~k~5), 264580#(<= 102 ULTIMATE.start_main_~k~5), 264581#(<= 103 ULTIMATE.start_main_~k~5), 264582#(<= 104 ULTIMATE.start_main_~k~5), 264583#(<= 105 ULTIMATE.start_main_~k~5), 264576#(<= 98 ULTIMATE.start_main_~k~5), 264577#(<= 99 ULTIMATE.start_main_~k~5), 264578#(<= 100 ULTIMATE.start_main_~k~5), 264579#(<= 101 ULTIMATE.start_main_~k~5), 264588#(<= 110 ULTIMATE.start_main_~k~5), 264589#(<= 111 ULTIMATE.start_main_~k~5), 264590#(<= 112 ULTIMATE.start_main_~k~5), 264591#(<= 113 ULTIMATE.start_main_~k~5), 264584#(<= 106 ULTIMATE.start_main_~k~5), 264585#(<= 107 ULTIMATE.start_main_~k~5), 264586#(<= 108 ULTIMATE.start_main_~k~5), 264587#(<= 109 ULTIMATE.start_main_~k~5), 264596#(<= 118 ULTIMATE.start_main_~k~5), 264597#(<= 119 ULTIMATE.start_main_~k~5), 264598#(<= 120 ULTIMATE.start_main_~k~5), 264599#(<= 121 ULTIMATE.start_main_~k~5), 264592#(<= 114 ULTIMATE.start_main_~k~5), 264593#(<= 115 ULTIMATE.start_main_~k~5), 264594#(<= 116 ULTIMATE.start_main_~k~5), 264595#(<= 117 ULTIMATE.start_main_~k~5), 264600#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond)] [2018-07-23 13:44:55,307 INFO L134 CoverageAnalysis]: Checked inductivity of 21901 backedges. 7381 proven. 14520 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:55,307 INFO L450 AbstractCegarLoop]: Interpolant automaton has 125 states [2018-07-23 13:44:55,308 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 125 interpolants. [2018-07-23 13:44:55,308 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7628, Invalid=7872, Unknown=0, NotChecked=0, Total=15500 [2018-07-23 13:44:55,309 INFO L87 Difference]: Start difference. First operand 367 states and 368 transitions. Second operand 125 states. [2018-07-23 13:44:55,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:44:55,957 INFO L93 Difference]: Finished difference Result 375 states and 376 transitions. [2018-07-23 13:44:55,957 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 246 states. [2018-07-23 13:44:55,957 INFO L78 Accepts]: Start accepts. Automaton has 125 states. Word has length 366 [2018-07-23 13:44:55,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:44:55,958 INFO L225 Difference]: With dead ends: 375 [2018-07-23 13:44:55,958 INFO L226 Difference]: Without dead ends: 373 [2018-07-23 13:44:55,961 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 245 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14762 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=22878, Invalid=37884, Unknown=0, NotChecked=0, Total=60762 [2018-07-23 13:44:55,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2018-07-23 13:44:56,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 369. [2018-07-23 13:44:56,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 369 states. [2018-07-23 13:44:56,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 370 transitions. [2018-07-23 13:44:56,015 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 370 transitions. Word has length 366 [2018-07-23 13:44:56,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:44:56,015 INFO L471 AbstractCegarLoop]: Abstraction has 369 states and 370 transitions. [2018-07-23 13:44:56,015 INFO L472 AbstractCegarLoop]: Interpolant automaton has 125 states. [2018-07-23 13:44:56,015 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 370 transitions. [2018-07-23 13:44:56,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2018-07-23 13:44:56,016 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:44:56,016 INFO L357 BasicCegarLoop]: trace histogram [122, 121, 121, 1, 1, 1, 1] [2018-07-23 13:44:56,016 INFO L414 AbstractCegarLoop]: === Iteration 243 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:44:56,017 INFO L82 PathProgramCache]: Analyzing trace with hash -1875160054, now seen corresponding path program 241 times [2018-07-23 13:44:56,017 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:44:56,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:44:57,381 INFO L134 CoverageAnalysis]: Checked inductivity of 22143 backedges. 14762 proven. 7381 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:57,381 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:44:57,381 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [245] total 245 [2018-07-23 13:44:57,381 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:44:57,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:57,382 INFO L185 omatonBuilderFactory]: Interpolants [266333#true, 266334#false, 266335#(<= ULTIMATE.start_main_~i~5 0), 266340#(<= ULTIMATE.start_main_~i~5 5), 266341#(<= ULTIMATE.start_main_~i~5 6), 266342#(<= ULTIMATE.start_main_~i~5 7), 266343#(<= ULTIMATE.start_main_~i~5 8), 266336#(<= ULTIMATE.start_main_~i~5 1), 266337#(<= ULTIMATE.start_main_~i~5 2), 266338#(<= ULTIMATE.start_main_~i~5 3), 266339#(<= ULTIMATE.start_main_~i~5 4), 266348#(<= ULTIMATE.start_main_~i~5 13), 266349#(<= ULTIMATE.start_main_~i~5 14), 266350#(<= ULTIMATE.start_main_~i~5 15), 266351#(<= ULTIMATE.start_main_~i~5 16), 266344#(<= ULTIMATE.start_main_~i~5 9), 266345#(<= ULTIMATE.start_main_~i~5 10), 266346#(<= ULTIMATE.start_main_~i~5 11), 266347#(<= ULTIMATE.start_main_~i~5 12), 266356#(<= ULTIMATE.start_main_~i~5 21), 266357#(<= ULTIMATE.start_main_~i~5 22), 266358#(<= ULTIMATE.start_main_~i~5 23), 266359#(<= ULTIMATE.start_main_~i~5 24), 266352#(<= ULTIMATE.start_main_~i~5 17), 266353#(<= ULTIMATE.start_main_~i~5 18), 266354#(<= ULTIMATE.start_main_~i~5 19), 266355#(<= ULTIMATE.start_main_~i~5 20), 266364#(<= ULTIMATE.start_main_~i~5 29), 266365#(<= ULTIMATE.start_main_~i~5 30), 266366#(<= ULTIMATE.start_main_~i~5 31), 266367#(<= ULTIMATE.start_main_~i~5 32), 266360#(<= ULTIMATE.start_main_~i~5 25), 266361#(<= ULTIMATE.start_main_~i~5 26), 266362#(<= ULTIMATE.start_main_~i~5 27), 266363#(<= ULTIMATE.start_main_~i~5 28), 266372#(<= ULTIMATE.start_main_~i~5 37), 266373#(<= ULTIMATE.start_main_~i~5 38), 266374#(<= ULTIMATE.start_main_~i~5 39), 266375#(<= ULTIMATE.start_main_~i~5 40), 266368#(<= ULTIMATE.start_main_~i~5 33), 266369#(<= ULTIMATE.start_main_~i~5 34), 266370#(<= ULTIMATE.start_main_~i~5 35), 266371#(<= ULTIMATE.start_main_~i~5 36), 266380#(<= ULTIMATE.start_main_~i~5 45), 266381#(<= ULTIMATE.start_main_~i~5 46), 266382#(<= ULTIMATE.start_main_~i~5 47), 266383#(<= ULTIMATE.start_main_~i~5 48), 266376#(<= ULTIMATE.start_main_~i~5 41), 266377#(<= ULTIMATE.start_main_~i~5 42), 266378#(<= ULTIMATE.start_main_~i~5 43), 266379#(<= ULTIMATE.start_main_~i~5 44), 266388#(<= ULTIMATE.start_main_~i~5 53), 266389#(<= ULTIMATE.start_main_~i~5 54), 266390#(<= ULTIMATE.start_main_~i~5 55), 266391#(<= ULTIMATE.start_main_~i~5 56), 266384#(<= ULTIMATE.start_main_~i~5 49), 266385#(<= ULTIMATE.start_main_~i~5 50), 266386#(<= ULTIMATE.start_main_~i~5 51), 266387#(<= ULTIMATE.start_main_~i~5 52), 266396#(<= ULTIMATE.start_main_~i~5 61), 266397#(<= ULTIMATE.start_main_~i~5 62), 266398#(<= ULTIMATE.start_main_~i~5 63), 266399#(<= ULTIMATE.start_main_~i~5 64), 266392#(<= ULTIMATE.start_main_~i~5 57), 266393#(<= ULTIMATE.start_main_~i~5 58), 266394#(<= ULTIMATE.start_main_~i~5 59), 266395#(<= ULTIMATE.start_main_~i~5 60), 266404#(<= ULTIMATE.start_main_~i~5 69), 266405#(<= ULTIMATE.start_main_~i~5 70), 266406#(<= ULTIMATE.start_main_~i~5 71), 266407#(<= ULTIMATE.start_main_~i~5 72), 266400#(<= ULTIMATE.start_main_~i~5 65), 266401#(<= ULTIMATE.start_main_~i~5 66), 266402#(<= ULTIMATE.start_main_~i~5 67), 266403#(<= ULTIMATE.start_main_~i~5 68), 266412#(<= ULTIMATE.start_main_~i~5 77), 266413#(<= ULTIMATE.start_main_~i~5 78), 266414#(<= ULTIMATE.start_main_~i~5 79), 266415#(<= ULTIMATE.start_main_~i~5 80), 266408#(<= ULTIMATE.start_main_~i~5 73), 266409#(<= ULTIMATE.start_main_~i~5 74), 266410#(<= ULTIMATE.start_main_~i~5 75), 266411#(<= ULTIMATE.start_main_~i~5 76), 266420#(<= ULTIMATE.start_main_~i~5 85), 266421#(<= ULTIMATE.start_main_~i~5 86), 266422#(<= ULTIMATE.start_main_~i~5 87), 266423#(<= ULTIMATE.start_main_~i~5 88), 266416#(<= ULTIMATE.start_main_~i~5 81), 266417#(<= ULTIMATE.start_main_~i~5 82), 266418#(<= ULTIMATE.start_main_~i~5 83), 266419#(<= ULTIMATE.start_main_~i~5 84), 266428#(<= ULTIMATE.start_main_~i~5 93), 266429#(<= ULTIMATE.start_main_~i~5 94), 266430#(<= ULTIMATE.start_main_~i~5 95), 266431#(<= ULTIMATE.start_main_~i~5 96), 266424#(<= ULTIMATE.start_main_~i~5 89), 266425#(<= ULTIMATE.start_main_~i~5 90), 266426#(<= ULTIMATE.start_main_~i~5 91), 266427#(<= ULTIMATE.start_main_~i~5 92), 266436#(<= ULTIMATE.start_main_~i~5 101), 266437#(<= ULTIMATE.start_main_~i~5 102), 266438#(<= ULTIMATE.start_main_~i~5 103), 266439#(<= ULTIMATE.start_main_~i~5 104), 266432#(<= ULTIMATE.start_main_~i~5 97), 266433#(<= ULTIMATE.start_main_~i~5 98), 266434#(<= ULTIMATE.start_main_~i~5 99), 266435#(<= ULTIMATE.start_main_~i~5 100), 266444#(<= ULTIMATE.start_main_~i~5 109), 266445#(<= ULTIMATE.start_main_~i~5 110), 266446#(<= ULTIMATE.start_main_~i~5 111), 266447#(<= ULTIMATE.start_main_~i~5 112), 266440#(<= ULTIMATE.start_main_~i~5 105), 266441#(<= ULTIMATE.start_main_~i~5 106), 266442#(<= ULTIMATE.start_main_~i~5 107), 266443#(<= ULTIMATE.start_main_~i~5 108), 266452#(<= ULTIMATE.start_main_~i~5 117), 266453#(<= ULTIMATE.start_main_~i~5 118), 266454#(<= ULTIMATE.start_main_~i~5 119), 266455#(<= ULTIMATE.start_main_~i~5 120), 266448#(<= ULTIMATE.start_main_~i~5 113), 266449#(<= ULTIMATE.start_main_~i~5 114), 266450#(<= ULTIMATE.start_main_~i~5 115), 266451#(<= ULTIMATE.start_main_~i~5 116), 266460#(<= ULTIMATE.start_main_~j~5 118), 266461#(<= ULTIMATE.start_main_~j~5 117), 266462#(<= ULTIMATE.start_main_~j~5 116), 266463#(<= ULTIMATE.start_main_~j~5 115), 266456#(<= ULTIMATE.start_main_~i~5 121), 266457#(<= ULTIMATE.start_main_~j~5 121), 266458#(<= ULTIMATE.start_main_~j~5 120), 266459#(<= ULTIMATE.start_main_~j~5 119), 266468#(<= ULTIMATE.start_main_~j~5 110), 266469#(<= ULTIMATE.start_main_~j~5 109), 266470#(<= ULTIMATE.start_main_~j~5 108), 266471#(<= ULTIMATE.start_main_~j~5 107), 266464#(<= ULTIMATE.start_main_~j~5 114), 266465#(<= ULTIMATE.start_main_~j~5 113), 266466#(<= ULTIMATE.start_main_~j~5 112), 266467#(<= ULTIMATE.start_main_~j~5 111), 266476#(<= ULTIMATE.start_main_~j~5 102), 266477#(<= ULTIMATE.start_main_~j~5 101), 266478#(<= ULTIMATE.start_main_~j~5 100), 266479#(<= ULTIMATE.start_main_~j~5 99), 266472#(<= ULTIMATE.start_main_~j~5 106), 266473#(<= ULTIMATE.start_main_~j~5 105), 266474#(<= ULTIMATE.start_main_~j~5 104), 266475#(<= ULTIMATE.start_main_~j~5 103), 266484#(<= ULTIMATE.start_main_~j~5 94), 266485#(<= ULTIMATE.start_main_~j~5 93), 266486#(<= ULTIMATE.start_main_~j~5 92), 266487#(<= ULTIMATE.start_main_~j~5 91), 266480#(<= ULTIMATE.start_main_~j~5 98), 266481#(<= ULTIMATE.start_main_~j~5 97), 266482#(<= ULTIMATE.start_main_~j~5 96), 266483#(<= ULTIMATE.start_main_~j~5 95), 266492#(<= ULTIMATE.start_main_~j~5 86), 266493#(<= ULTIMATE.start_main_~j~5 85), 266494#(<= ULTIMATE.start_main_~j~5 84), 266495#(<= ULTIMATE.start_main_~j~5 83), 266488#(<= ULTIMATE.start_main_~j~5 90), 266489#(<= ULTIMATE.start_main_~j~5 89), 266490#(<= ULTIMATE.start_main_~j~5 88), 266491#(<= ULTIMATE.start_main_~j~5 87), 266500#(<= ULTIMATE.start_main_~j~5 78), 266501#(<= ULTIMATE.start_main_~j~5 77), 266502#(<= ULTIMATE.start_main_~j~5 76), 266503#(<= ULTIMATE.start_main_~j~5 75), 266496#(<= ULTIMATE.start_main_~j~5 82), 266497#(<= ULTIMATE.start_main_~j~5 81), 266498#(<= ULTIMATE.start_main_~j~5 80), 266499#(<= ULTIMATE.start_main_~j~5 79), 266508#(<= ULTIMATE.start_main_~j~5 70), 266509#(<= ULTIMATE.start_main_~j~5 69), 266510#(<= ULTIMATE.start_main_~j~5 68), 266511#(<= ULTIMATE.start_main_~j~5 67), 266504#(<= ULTIMATE.start_main_~j~5 74), 266505#(<= ULTIMATE.start_main_~j~5 73), 266506#(<= ULTIMATE.start_main_~j~5 72), 266507#(<= ULTIMATE.start_main_~j~5 71), 266516#(<= ULTIMATE.start_main_~j~5 62), 266517#(<= ULTIMATE.start_main_~j~5 61), 266518#(<= ULTIMATE.start_main_~j~5 60), 266519#(<= ULTIMATE.start_main_~j~5 59), 266512#(<= ULTIMATE.start_main_~j~5 66), 266513#(<= ULTIMATE.start_main_~j~5 65), 266514#(<= ULTIMATE.start_main_~j~5 64), 266515#(<= ULTIMATE.start_main_~j~5 63), 266524#(<= ULTIMATE.start_main_~j~5 54), 266525#(<= ULTIMATE.start_main_~j~5 53), 266526#(<= ULTIMATE.start_main_~j~5 52), 266527#(<= ULTIMATE.start_main_~j~5 51), 266520#(<= ULTIMATE.start_main_~j~5 58), 266521#(<= ULTIMATE.start_main_~j~5 57), 266522#(<= ULTIMATE.start_main_~j~5 56), 266523#(<= ULTIMATE.start_main_~j~5 55), 266532#(<= ULTIMATE.start_main_~j~5 46), 266533#(<= ULTIMATE.start_main_~j~5 45), 266534#(<= ULTIMATE.start_main_~j~5 44), 266535#(<= ULTIMATE.start_main_~j~5 43), 266528#(<= ULTIMATE.start_main_~j~5 50), 266529#(<= ULTIMATE.start_main_~j~5 49), 266530#(<= ULTIMATE.start_main_~j~5 48), 266531#(<= ULTIMATE.start_main_~j~5 47), 266540#(<= ULTIMATE.start_main_~j~5 38), 266541#(<= ULTIMATE.start_main_~j~5 37), 266542#(<= ULTIMATE.start_main_~j~5 36), 266543#(<= ULTIMATE.start_main_~j~5 35), 266536#(<= ULTIMATE.start_main_~j~5 42), 266537#(<= ULTIMATE.start_main_~j~5 41), 266538#(<= ULTIMATE.start_main_~j~5 40), 266539#(<= ULTIMATE.start_main_~j~5 39), 266548#(<= ULTIMATE.start_main_~j~5 30), 266549#(<= ULTIMATE.start_main_~j~5 29), 266550#(<= ULTIMATE.start_main_~j~5 28), 266551#(<= ULTIMATE.start_main_~j~5 27), 266544#(<= ULTIMATE.start_main_~j~5 34), 266545#(<= ULTIMATE.start_main_~j~5 33), 266546#(<= ULTIMATE.start_main_~j~5 32), 266547#(<= ULTIMATE.start_main_~j~5 31), 266556#(<= ULTIMATE.start_main_~j~5 22), 266557#(<= ULTIMATE.start_main_~j~5 21), 266558#(<= ULTIMATE.start_main_~j~5 20), 266559#(<= ULTIMATE.start_main_~j~5 19), 266552#(<= ULTIMATE.start_main_~j~5 26), 266553#(<= ULTIMATE.start_main_~j~5 25), 266554#(<= ULTIMATE.start_main_~j~5 24), 266555#(<= ULTIMATE.start_main_~j~5 23), 266564#(<= ULTIMATE.start_main_~j~5 14), 266565#(<= ULTIMATE.start_main_~j~5 13), 266566#(<= ULTIMATE.start_main_~j~5 12), 266567#(<= ULTIMATE.start_main_~j~5 11), 266560#(<= ULTIMATE.start_main_~j~5 18), 266561#(<= ULTIMATE.start_main_~j~5 17), 266562#(<= ULTIMATE.start_main_~j~5 16), 266563#(<= ULTIMATE.start_main_~j~5 15), 266572#(<= ULTIMATE.start_main_~j~5 6), 266573#(<= ULTIMATE.start_main_~j~5 5), 266574#(<= ULTIMATE.start_main_~j~5 4), 266575#(<= ULTIMATE.start_main_~j~5 3), 266568#(<= ULTIMATE.start_main_~j~5 10), 266569#(<= ULTIMATE.start_main_~j~5 9), 266570#(<= ULTIMATE.start_main_~j~5 8), 266571#(<= ULTIMATE.start_main_~j~5 7), 266576#(<= ULTIMATE.start_main_~j~5 2), 266577#(<= ULTIMATE.start_main_~j~5 1), 266578#(<= ULTIMATE.start_main_~j~5 0)] [2018-07-23 13:44:57,383 INFO L134 CoverageAnalysis]: Checked inductivity of 22143 backedges. 14762 proven. 7381 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:44:57,383 INFO L450 AbstractCegarLoop]: Interpolant automaton has 246 states [2018-07-23 13:44:57,385 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 246 interpolants. [2018-07-23 13:44:57,388 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15251, Invalid=45019, Unknown=0, NotChecked=0, Total=60270 [2018-07-23 13:44:57,388 INFO L87 Difference]: Start difference. First operand 369 states and 370 transitions. Second operand 246 states. [2018-07-23 13:45:01,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:45:01,726 INFO L93 Difference]: Finished difference Result 617 states and 619 transitions. [2018-07-23 13:45:01,726 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 246 states. [2018-07-23 13:45:01,726 INFO L78 Accepts]: Start accepts. Automaton has 246 states. Word has length 368 [2018-07-23 13:45:01,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:45:01,727 INFO L225 Difference]: With dead ends: 617 [2018-07-23 13:45:01,727 INFO L226 Difference]: Without dead ends: 370 [2018-07-23 13:45:01,734 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 366 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22022 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=30501, Invalid=104555, Unknown=0, NotChecked=0, Total=135056 [2018-07-23 13:45:01,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2018-07-23 13:45:01,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 370. [2018-07-23 13:45:01,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2018-07-23 13:45:01,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 371 transitions. [2018-07-23 13:45:01,788 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 371 transitions. Word has length 368 [2018-07-23 13:45:01,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:45:01,788 INFO L471 AbstractCegarLoop]: Abstraction has 370 states and 371 transitions. [2018-07-23 13:45:01,788 INFO L472 AbstractCegarLoop]: Interpolant automaton has 246 states. [2018-07-23 13:45:01,788 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 371 transitions. [2018-07-23 13:45:01,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2018-07-23 13:45:01,789 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:45:01,789 INFO L357 BasicCegarLoop]: trace histogram [122, 122, 121, 1, 1, 1, 1] [2018-07-23 13:45:01,789 INFO L414 AbstractCegarLoop]: === Iteration 244 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:45:01,789 INFO L82 PathProgramCache]: Analyzing trace with hash -897113725, now seen corresponding path program 242 times [2018-07-23 13:45:01,789 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:45:02,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:45:02,668 INFO L134 CoverageAnalysis]: Checked inductivity of 22265 backedges. 7503 proven. 14762 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:45:02,669 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:45:02,669 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [125] total 125 [2018-07-23 13:45:02,669 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:45:02,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:45:02,669 INFO L185 omatonBuilderFactory]: Interpolants [268804#(<= 5 ULTIMATE.start_main_~k~5), 268805#(<= 6 ULTIMATE.start_main_~k~5), 268806#(<= 7 ULTIMATE.start_main_~k~5), 268807#(<= 8 ULTIMATE.start_main_~k~5), 268800#(<= 1 ULTIMATE.start_main_~k~5), 268801#(<= 2 ULTIMATE.start_main_~k~5), 268802#(<= 3 ULTIMATE.start_main_~k~5), 268803#(<= 4 ULTIMATE.start_main_~k~5), 268812#(<= 13 ULTIMATE.start_main_~k~5), 268813#(<= 14 ULTIMATE.start_main_~k~5), 268814#(<= 15 ULTIMATE.start_main_~k~5), 268815#(<= 16 ULTIMATE.start_main_~k~5), 268808#(<= 9 ULTIMATE.start_main_~k~5), 268809#(<= 10 ULTIMATE.start_main_~k~5), 268810#(<= 11 ULTIMATE.start_main_~k~5), 268811#(<= 12 ULTIMATE.start_main_~k~5), 268820#(<= 21 ULTIMATE.start_main_~k~5), 268821#(<= 22 ULTIMATE.start_main_~k~5), 268822#(<= 23 ULTIMATE.start_main_~k~5), 268823#(<= 24 ULTIMATE.start_main_~k~5), 268816#(<= 17 ULTIMATE.start_main_~k~5), 268817#(<= 18 ULTIMATE.start_main_~k~5), 268818#(<= 19 ULTIMATE.start_main_~k~5), 268819#(<= 20 ULTIMATE.start_main_~k~5), 268828#(<= 29 ULTIMATE.start_main_~k~5), 268829#(<= 30 ULTIMATE.start_main_~k~5), 268830#(<= 31 ULTIMATE.start_main_~k~5), 268831#(<= 32 ULTIMATE.start_main_~k~5), 268824#(<= 25 ULTIMATE.start_main_~k~5), 268825#(<= 26 ULTIMATE.start_main_~k~5), 268826#(<= 27 ULTIMATE.start_main_~k~5), 268827#(<= 28 ULTIMATE.start_main_~k~5), 268836#(<= 37 ULTIMATE.start_main_~k~5), 268837#(<= 38 ULTIMATE.start_main_~k~5), 268838#(<= 39 ULTIMATE.start_main_~k~5), 268839#(<= 40 ULTIMATE.start_main_~k~5), 268832#(<= 33 ULTIMATE.start_main_~k~5), 268833#(<= 34 ULTIMATE.start_main_~k~5), 268834#(<= 35 ULTIMATE.start_main_~k~5), 268835#(<= 36 ULTIMATE.start_main_~k~5), 268844#(<= 45 ULTIMATE.start_main_~k~5), 268845#(<= 46 ULTIMATE.start_main_~k~5), 268846#(<= 47 ULTIMATE.start_main_~k~5), 268847#(<= 48 ULTIMATE.start_main_~k~5), 268840#(<= 41 ULTIMATE.start_main_~k~5), 268841#(<= 42 ULTIMATE.start_main_~k~5), 268842#(<= 43 ULTIMATE.start_main_~k~5), 268843#(<= 44 ULTIMATE.start_main_~k~5), 268852#(<= 53 ULTIMATE.start_main_~k~5), 268853#(<= 54 ULTIMATE.start_main_~k~5), 268854#(<= 55 ULTIMATE.start_main_~k~5), 268855#(<= 56 ULTIMATE.start_main_~k~5), 268848#(<= 49 ULTIMATE.start_main_~k~5), 268849#(<= 50 ULTIMATE.start_main_~k~5), 268850#(<= 51 ULTIMATE.start_main_~k~5), 268851#(<= 52 ULTIMATE.start_main_~k~5), 268860#(<= 61 ULTIMATE.start_main_~k~5), 268861#(<= 62 ULTIMATE.start_main_~k~5), 268862#(<= 63 ULTIMATE.start_main_~k~5), 268863#(<= 64 ULTIMATE.start_main_~k~5), 268856#(<= 57 ULTIMATE.start_main_~k~5), 268857#(<= 58 ULTIMATE.start_main_~k~5), 268858#(<= 59 ULTIMATE.start_main_~k~5), 268859#(<= 60 ULTIMATE.start_main_~k~5), 268868#(<= 69 ULTIMATE.start_main_~k~5), 268869#(<= 70 ULTIMATE.start_main_~k~5), 268870#(<= 71 ULTIMATE.start_main_~k~5), 268871#(<= 72 ULTIMATE.start_main_~k~5), 268864#(<= 65 ULTIMATE.start_main_~k~5), 268865#(<= 66 ULTIMATE.start_main_~k~5), 268866#(<= 67 ULTIMATE.start_main_~k~5), 268867#(<= 68 ULTIMATE.start_main_~k~5), 268876#(<= 77 ULTIMATE.start_main_~k~5), 268877#(<= 78 ULTIMATE.start_main_~k~5), 268878#(<= 79 ULTIMATE.start_main_~k~5), 268879#(<= 80 ULTIMATE.start_main_~k~5), 268872#(<= 73 ULTIMATE.start_main_~k~5), 268873#(<= 74 ULTIMATE.start_main_~k~5), 268874#(<= 75 ULTIMATE.start_main_~k~5), 268875#(<= 76 ULTIMATE.start_main_~k~5), 268884#(<= 85 ULTIMATE.start_main_~k~5), 268885#(<= 86 ULTIMATE.start_main_~k~5), 268886#(<= 87 ULTIMATE.start_main_~k~5), 268887#(<= 88 ULTIMATE.start_main_~k~5), 268880#(<= 81 ULTIMATE.start_main_~k~5), 268881#(<= 82 ULTIMATE.start_main_~k~5), 268882#(<= 83 ULTIMATE.start_main_~k~5), 268883#(<= 84 ULTIMATE.start_main_~k~5), 268892#(<= 93 ULTIMATE.start_main_~k~5), 268893#(<= 94 ULTIMATE.start_main_~k~5), 268894#(<= 95 ULTIMATE.start_main_~k~5), 268895#(<= 96 ULTIMATE.start_main_~k~5), 268888#(<= 89 ULTIMATE.start_main_~k~5), 268889#(<= 90 ULTIMATE.start_main_~k~5), 268890#(<= 91 ULTIMATE.start_main_~k~5), 268891#(<= 92 ULTIMATE.start_main_~k~5), 268900#(<= 101 ULTIMATE.start_main_~k~5), 268901#(<= 102 ULTIMATE.start_main_~k~5), 268902#(<= 103 ULTIMATE.start_main_~k~5), 268903#(<= 104 ULTIMATE.start_main_~k~5), 268896#(<= 97 ULTIMATE.start_main_~k~5), 268897#(<= 98 ULTIMATE.start_main_~k~5), 268898#(<= 99 ULTIMATE.start_main_~k~5), 268899#(<= 100 ULTIMATE.start_main_~k~5), 268908#(<= 109 ULTIMATE.start_main_~k~5), 268909#(<= 110 ULTIMATE.start_main_~k~5), 268910#(<= 111 ULTIMATE.start_main_~k~5), 268911#(<= 112 ULTIMATE.start_main_~k~5), 268904#(<= 105 ULTIMATE.start_main_~k~5), 268905#(<= 106 ULTIMATE.start_main_~k~5), 268906#(<= 107 ULTIMATE.start_main_~k~5), 268907#(<= 108 ULTIMATE.start_main_~k~5), 268916#(<= 117 ULTIMATE.start_main_~k~5), 268917#(<= 118 ULTIMATE.start_main_~k~5), 268918#(<= 119 ULTIMATE.start_main_~k~5), 268919#(<= 120 ULTIMATE.start_main_~k~5), 268912#(<= 113 ULTIMATE.start_main_~k~5), 268913#(<= 114 ULTIMATE.start_main_~k~5), 268914#(<= 115 ULTIMATE.start_main_~k~5), 268915#(<= 116 ULTIMATE.start_main_~k~5), 268920#(<= 121 ULTIMATE.start_main_~k~5), 268921#(<= 122 ULTIMATE.start_main_~k~5), 268922#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond), 268797#true, 268798#false, 268799#(<= 0 ULTIMATE.start_main_~k~5)] [2018-07-23 13:45:02,670 INFO L134 CoverageAnalysis]: Checked inductivity of 22265 backedges. 7503 proven. 14762 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:45:02,670 INFO L450 AbstractCegarLoop]: Interpolant automaton has 126 states [2018-07-23 13:45:02,671 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 126 interpolants. [2018-07-23 13:45:02,671 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7752, Invalid=7998, Unknown=0, NotChecked=0, Total=15750 [2018-07-23 13:45:02,672 INFO L87 Difference]: Start difference. First operand 370 states and 371 transitions. Second operand 126 states. [2018-07-23 13:45:03,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:45:03,299 INFO L93 Difference]: Finished difference Result 378 states and 379 transitions. [2018-07-23 13:45:03,299 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 248 states. [2018-07-23 13:45:03,299 INFO L78 Accepts]: Start accepts. Automaton has 126 states. Word has length 369 [2018-07-23 13:45:03,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:45:03,300 INFO L225 Difference]: With dead ends: 378 [2018-07-23 13:45:03,300 INFO L226 Difference]: Without dead ends: 376 [2018-07-23 13:45:03,303 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 247 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15006 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=23250, Invalid=38502, Unknown=0, NotChecked=0, Total=61752 [2018-07-23 13:45:03,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2018-07-23 13:45:03,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 372. [2018-07-23 13:45:03,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 372 states. [2018-07-23 13:45:03,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 373 transitions. [2018-07-23 13:45:03,358 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 373 transitions. Word has length 369 [2018-07-23 13:45:03,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:45:03,358 INFO L471 AbstractCegarLoop]: Abstraction has 372 states and 373 transitions. [2018-07-23 13:45:03,358 INFO L472 AbstractCegarLoop]: Interpolant automaton has 126 states. [2018-07-23 13:45:03,358 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 373 transitions. [2018-07-23 13:45:03,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2018-07-23 13:45:03,359 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:45:03,359 INFO L357 BasicCegarLoop]: trace histogram [123, 122, 122, 1, 1, 1, 1] [2018-07-23 13:45:03,359 INFO L414 AbstractCegarLoop]: === Iteration 245 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:45:03,360 INFO L82 PathProgramCache]: Analyzing trace with hash 1162202795, now seen corresponding path program 243 times [2018-07-23 13:45:03,360 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:45:03,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:45:04,828 INFO L134 CoverageAnalysis]: Checked inductivity of 22509 backedges. 15006 proven. 7503 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:45:04,829 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:45:04,829 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [247] total 247 [2018-07-23 13:45:04,829 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:45:04,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:45:04,830 INFO L185 omatonBuilderFactory]: Interpolants [270852#(<= ULTIMATE.start_main_~j~5 64), 270853#(<= ULTIMATE.start_main_~j~5 63), 270854#(<= ULTIMATE.start_main_~j~5 62), 270855#(<= ULTIMATE.start_main_~j~5 61), 270848#(<= ULTIMATE.start_main_~j~5 68), 270849#(<= ULTIMATE.start_main_~j~5 67), 270850#(<= ULTIMATE.start_main_~j~5 66), 270851#(<= ULTIMATE.start_main_~j~5 65), 270860#(<= ULTIMATE.start_main_~j~5 56), 270861#(<= ULTIMATE.start_main_~j~5 55), 270862#(<= ULTIMATE.start_main_~j~5 54), 270863#(<= ULTIMATE.start_main_~j~5 53), 270856#(<= ULTIMATE.start_main_~j~5 60), 270857#(<= ULTIMATE.start_main_~j~5 59), 270858#(<= ULTIMATE.start_main_~j~5 58), 270859#(<= ULTIMATE.start_main_~j~5 57), 270868#(<= ULTIMATE.start_main_~j~5 48), 270869#(<= ULTIMATE.start_main_~j~5 47), 270870#(<= ULTIMATE.start_main_~j~5 46), 270871#(<= ULTIMATE.start_main_~j~5 45), 270864#(<= ULTIMATE.start_main_~j~5 52), 270865#(<= ULTIMATE.start_main_~j~5 51), 270866#(<= ULTIMATE.start_main_~j~5 50), 270867#(<= ULTIMATE.start_main_~j~5 49), 270876#(<= ULTIMATE.start_main_~j~5 40), 270877#(<= ULTIMATE.start_main_~j~5 39), 270878#(<= ULTIMATE.start_main_~j~5 38), 270879#(<= ULTIMATE.start_main_~j~5 37), 270872#(<= ULTIMATE.start_main_~j~5 44), 270873#(<= ULTIMATE.start_main_~j~5 43), 270874#(<= ULTIMATE.start_main_~j~5 42), 270875#(<= ULTIMATE.start_main_~j~5 41), 270884#(<= ULTIMATE.start_main_~j~5 32), 270885#(<= ULTIMATE.start_main_~j~5 31), 270886#(<= ULTIMATE.start_main_~j~5 30), 270887#(<= ULTIMATE.start_main_~j~5 29), 270880#(<= ULTIMATE.start_main_~j~5 36), 270881#(<= ULTIMATE.start_main_~j~5 35), 270882#(<= ULTIMATE.start_main_~j~5 34), 270883#(<= ULTIMATE.start_main_~j~5 33), 270892#(<= ULTIMATE.start_main_~j~5 24), 270893#(<= ULTIMATE.start_main_~j~5 23), 270894#(<= ULTIMATE.start_main_~j~5 22), 270895#(<= ULTIMATE.start_main_~j~5 21), 270888#(<= ULTIMATE.start_main_~j~5 28), 270889#(<= ULTIMATE.start_main_~j~5 27), 270890#(<= ULTIMATE.start_main_~j~5 26), 270891#(<= ULTIMATE.start_main_~j~5 25), 270900#(<= ULTIMATE.start_main_~j~5 16), 270901#(<= ULTIMATE.start_main_~j~5 15), 270902#(<= ULTIMATE.start_main_~j~5 14), 270903#(<= ULTIMATE.start_main_~j~5 13), 270896#(<= ULTIMATE.start_main_~j~5 20), 270897#(<= ULTIMATE.start_main_~j~5 19), 270898#(<= ULTIMATE.start_main_~j~5 18), 270899#(<= ULTIMATE.start_main_~j~5 17), 270908#(<= ULTIMATE.start_main_~j~5 8), 270909#(<= ULTIMATE.start_main_~j~5 7), 270910#(<= ULTIMATE.start_main_~j~5 6), 270911#(<= ULTIMATE.start_main_~j~5 5), 270904#(<= ULTIMATE.start_main_~j~5 12), 270905#(<= ULTIMATE.start_main_~j~5 11), 270906#(<= ULTIMATE.start_main_~j~5 10), 270907#(<= ULTIMATE.start_main_~j~5 9), 270916#(<= ULTIMATE.start_main_~j~5 0), 270912#(<= ULTIMATE.start_main_~j~5 4), 270913#(<= ULTIMATE.start_main_~j~5 3), 270914#(<= ULTIMATE.start_main_~j~5 2), 270915#(<= ULTIMATE.start_main_~j~5 1), 270669#true, 270670#false, 270671#(<= ULTIMATE.start_main_~i~5 0), 270676#(<= ULTIMATE.start_main_~i~5 5), 270677#(<= ULTIMATE.start_main_~i~5 6), 270678#(<= ULTIMATE.start_main_~i~5 7), 270679#(<= ULTIMATE.start_main_~i~5 8), 270672#(<= ULTIMATE.start_main_~i~5 1), 270673#(<= ULTIMATE.start_main_~i~5 2), 270674#(<= ULTIMATE.start_main_~i~5 3), 270675#(<= ULTIMATE.start_main_~i~5 4), 270684#(<= ULTIMATE.start_main_~i~5 13), 270685#(<= ULTIMATE.start_main_~i~5 14), 270686#(<= ULTIMATE.start_main_~i~5 15), 270687#(<= ULTIMATE.start_main_~i~5 16), 270680#(<= ULTIMATE.start_main_~i~5 9), 270681#(<= ULTIMATE.start_main_~i~5 10), 270682#(<= ULTIMATE.start_main_~i~5 11), 270683#(<= ULTIMATE.start_main_~i~5 12), 270692#(<= ULTIMATE.start_main_~i~5 21), 270693#(<= ULTIMATE.start_main_~i~5 22), 270694#(<= ULTIMATE.start_main_~i~5 23), 270695#(<= ULTIMATE.start_main_~i~5 24), 270688#(<= ULTIMATE.start_main_~i~5 17), 270689#(<= ULTIMATE.start_main_~i~5 18), 270690#(<= ULTIMATE.start_main_~i~5 19), 270691#(<= ULTIMATE.start_main_~i~5 20), 270700#(<= ULTIMATE.start_main_~i~5 29), 270701#(<= ULTIMATE.start_main_~i~5 30), 270702#(<= ULTIMATE.start_main_~i~5 31), 270703#(<= ULTIMATE.start_main_~i~5 32), 270696#(<= ULTIMATE.start_main_~i~5 25), 270697#(<= ULTIMATE.start_main_~i~5 26), 270698#(<= ULTIMATE.start_main_~i~5 27), 270699#(<= ULTIMATE.start_main_~i~5 28), 270708#(<= ULTIMATE.start_main_~i~5 37), 270709#(<= ULTIMATE.start_main_~i~5 38), 270710#(<= ULTIMATE.start_main_~i~5 39), 270711#(<= ULTIMATE.start_main_~i~5 40), 270704#(<= ULTIMATE.start_main_~i~5 33), 270705#(<= ULTIMATE.start_main_~i~5 34), 270706#(<= ULTIMATE.start_main_~i~5 35), 270707#(<= ULTIMATE.start_main_~i~5 36), 270716#(<= ULTIMATE.start_main_~i~5 45), 270717#(<= ULTIMATE.start_main_~i~5 46), 270718#(<= ULTIMATE.start_main_~i~5 47), 270719#(<= ULTIMATE.start_main_~i~5 48), 270712#(<= ULTIMATE.start_main_~i~5 41), 270713#(<= ULTIMATE.start_main_~i~5 42), 270714#(<= ULTIMATE.start_main_~i~5 43), 270715#(<= ULTIMATE.start_main_~i~5 44), 270724#(<= ULTIMATE.start_main_~i~5 53), 270725#(<= ULTIMATE.start_main_~i~5 54), 270726#(<= ULTIMATE.start_main_~i~5 55), 270727#(<= ULTIMATE.start_main_~i~5 56), 270720#(<= ULTIMATE.start_main_~i~5 49), 270721#(<= ULTIMATE.start_main_~i~5 50), 270722#(<= ULTIMATE.start_main_~i~5 51), 270723#(<= ULTIMATE.start_main_~i~5 52), 270732#(<= ULTIMATE.start_main_~i~5 61), 270733#(<= ULTIMATE.start_main_~i~5 62), 270734#(<= ULTIMATE.start_main_~i~5 63), 270735#(<= ULTIMATE.start_main_~i~5 64), 270728#(<= ULTIMATE.start_main_~i~5 57), 270729#(<= ULTIMATE.start_main_~i~5 58), 270730#(<= ULTIMATE.start_main_~i~5 59), 270731#(<= ULTIMATE.start_main_~i~5 60), 270740#(<= ULTIMATE.start_main_~i~5 69), 270741#(<= ULTIMATE.start_main_~i~5 70), 270742#(<= ULTIMATE.start_main_~i~5 71), 270743#(<= ULTIMATE.start_main_~i~5 72), 270736#(<= ULTIMATE.start_main_~i~5 65), 270737#(<= ULTIMATE.start_main_~i~5 66), 270738#(<= ULTIMATE.start_main_~i~5 67), 270739#(<= ULTIMATE.start_main_~i~5 68), 270748#(<= ULTIMATE.start_main_~i~5 77), 270749#(<= ULTIMATE.start_main_~i~5 78), 270750#(<= ULTIMATE.start_main_~i~5 79), 270751#(<= ULTIMATE.start_main_~i~5 80), 270744#(<= ULTIMATE.start_main_~i~5 73), 270745#(<= ULTIMATE.start_main_~i~5 74), 270746#(<= ULTIMATE.start_main_~i~5 75), 270747#(<= ULTIMATE.start_main_~i~5 76), 270756#(<= ULTIMATE.start_main_~i~5 85), 270757#(<= ULTIMATE.start_main_~i~5 86), 270758#(<= ULTIMATE.start_main_~i~5 87), 270759#(<= ULTIMATE.start_main_~i~5 88), 270752#(<= ULTIMATE.start_main_~i~5 81), 270753#(<= ULTIMATE.start_main_~i~5 82), 270754#(<= ULTIMATE.start_main_~i~5 83), 270755#(<= ULTIMATE.start_main_~i~5 84), 270764#(<= ULTIMATE.start_main_~i~5 93), 270765#(<= ULTIMATE.start_main_~i~5 94), 270766#(<= ULTIMATE.start_main_~i~5 95), 270767#(<= ULTIMATE.start_main_~i~5 96), 270760#(<= ULTIMATE.start_main_~i~5 89), 270761#(<= ULTIMATE.start_main_~i~5 90), 270762#(<= ULTIMATE.start_main_~i~5 91), 270763#(<= ULTIMATE.start_main_~i~5 92), 270772#(<= ULTIMATE.start_main_~i~5 101), 270773#(<= ULTIMATE.start_main_~i~5 102), 270774#(<= ULTIMATE.start_main_~i~5 103), 270775#(<= ULTIMATE.start_main_~i~5 104), 270768#(<= ULTIMATE.start_main_~i~5 97), 270769#(<= ULTIMATE.start_main_~i~5 98), 270770#(<= ULTIMATE.start_main_~i~5 99), 270771#(<= ULTIMATE.start_main_~i~5 100), 270780#(<= ULTIMATE.start_main_~i~5 109), 270781#(<= ULTIMATE.start_main_~i~5 110), 270782#(<= ULTIMATE.start_main_~i~5 111), 270783#(<= ULTIMATE.start_main_~i~5 112), 270776#(<= ULTIMATE.start_main_~i~5 105), 270777#(<= ULTIMATE.start_main_~i~5 106), 270778#(<= ULTIMATE.start_main_~i~5 107), 270779#(<= ULTIMATE.start_main_~i~5 108), 270788#(<= ULTIMATE.start_main_~i~5 117), 270789#(<= ULTIMATE.start_main_~i~5 118), 270790#(<= ULTIMATE.start_main_~i~5 119), 270791#(<= ULTIMATE.start_main_~i~5 120), 270784#(<= ULTIMATE.start_main_~i~5 113), 270785#(<= ULTIMATE.start_main_~i~5 114), 270786#(<= ULTIMATE.start_main_~i~5 115), 270787#(<= ULTIMATE.start_main_~i~5 116), 270796#(<= ULTIMATE.start_main_~j~5 120), 270797#(<= ULTIMATE.start_main_~j~5 119), 270798#(<= ULTIMATE.start_main_~j~5 118), 270799#(<= ULTIMATE.start_main_~j~5 117), 270792#(<= ULTIMATE.start_main_~i~5 121), 270793#(<= ULTIMATE.start_main_~i~5 122), 270794#(<= ULTIMATE.start_main_~j~5 122), 270795#(<= ULTIMATE.start_main_~j~5 121), 270804#(<= ULTIMATE.start_main_~j~5 112), 270805#(<= ULTIMATE.start_main_~j~5 111), 270806#(<= ULTIMATE.start_main_~j~5 110), 270807#(<= ULTIMATE.start_main_~j~5 109), 270800#(<= ULTIMATE.start_main_~j~5 116), 270801#(<= ULTIMATE.start_main_~j~5 115), 270802#(<= ULTIMATE.start_main_~j~5 114), 270803#(<= ULTIMATE.start_main_~j~5 113), 270812#(<= ULTIMATE.start_main_~j~5 104), 270813#(<= ULTIMATE.start_main_~j~5 103), 270814#(<= ULTIMATE.start_main_~j~5 102), 270815#(<= ULTIMATE.start_main_~j~5 101), 270808#(<= ULTIMATE.start_main_~j~5 108), 270809#(<= ULTIMATE.start_main_~j~5 107), 270810#(<= ULTIMATE.start_main_~j~5 106), 270811#(<= ULTIMATE.start_main_~j~5 105), 270820#(<= ULTIMATE.start_main_~j~5 96), 270821#(<= ULTIMATE.start_main_~j~5 95), 270822#(<= ULTIMATE.start_main_~j~5 94), 270823#(<= ULTIMATE.start_main_~j~5 93), 270816#(<= ULTIMATE.start_main_~j~5 100), 270817#(<= ULTIMATE.start_main_~j~5 99), 270818#(<= ULTIMATE.start_main_~j~5 98), 270819#(<= ULTIMATE.start_main_~j~5 97), 270828#(<= ULTIMATE.start_main_~j~5 88), 270829#(<= ULTIMATE.start_main_~j~5 87), 270830#(<= ULTIMATE.start_main_~j~5 86), 270831#(<= ULTIMATE.start_main_~j~5 85), 270824#(<= ULTIMATE.start_main_~j~5 92), 270825#(<= ULTIMATE.start_main_~j~5 91), 270826#(<= ULTIMATE.start_main_~j~5 90), 270827#(<= ULTIMATE.start_main_~j~5 89), 270836#(<= ULTIMATE.start_main_~j~5 80), 270837#(<= ULTIMATE.start_main_~j~5 79), 270838#(<= ULTIMATE.start_main_~j~5 78), 270839#(<= ULTIMATE.start_main_~j~5 77), 270832#(<= ULTIMATE.start_main_~j~5 84), 270833#(<= ULTIMATE.start_main_~j~5 83), 270834#(<= ULTIMATE.start_main_~j~5 82), 270835#(<= ULTIMATE.start_main_~j~5 81), 270844#(<= ULTIMATE.start_main_~j~5 72), 270845#(<= ULTIMATE.start_main_~j~5 71), 270846#(<= ULTIMATE.start_main_~j~5 70), 270847#(<= ULTIMATE.start_main_~j~5 69), 270840#(<= ULTIMATE.start_main_~j~5 76), 270841#(<= ULTIMATE.start_main_~j~5 75), 270842#(<= ULTIMATE.start_main_~j~5 74), 270843#(<= ULTIMATE.start_main_~j~5 73)] [2018-07-23 13:45:04,831 INFO L134 CoverageAnalysis]: Checked inductivity of 22509 backedges. 15006 proven. 7503 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:45:04,831 INFO L450 AbstractCegarLoop]: Interpolant automaton has 248 states [2018-07-23 13:45:04,833 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 248 interpolants. [2018-07-23 13:45:04,835 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15499, Invalid=45757, Unknown=0, NotChecked=0, Total=61256 [2018-07-23 13:45:04,835 INFO L87 Difference]: Start difference. First operand 372 states and 373 transitions. Second operand 248 states. Received shutdown request... [2018-07-23 13:45:05,091 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2018-07-23 13:45:05,091 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-23 13:45:05,097 WARN L202 ceAbstractionStarter]: Timeout [2018-07-23 13:45:05,098 INFO L202 PluginConnector]: Adding new model down.i_4.bplTransformedIcfg_BEv2_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 01:45:05 BoogieIcfgContainer [2018-07-23 13:45:05,098 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 13:45:05,099 INFO L168 Benchmark]: Toolchain (without parser) took 257902.26 ms. Allocated memory was 1.5 GB in the beginning and 3.5 GB in the end (delta: 2.0 GB). Free memory was 1.5 GB in the beginning and 3.2 GB in the end (delta: -1.7 GB). Peak memory consumption was 315.8 MB. Max. memory is 7.1 GB. [2018-07-23 13:45:05,104 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.19 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. [2018-07-23 13:45:05,104 INFO L168 Benchmark]: Boogie Preprocessor took 53.19 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. [2018-07-23 13:45:05,104 INFO L168 Benchmark]: RCFGBuilder took 305.81 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-07-23 13:45:05,104 INFO L168 Benchmark]: TraceAbstraction took 257539.22 ms. Allocated memory was 1.5 GB in the beginning and 3.5 GB in the end (delta: 2.0 GB). Free memory was 1.5 GB in the beginning and 3.2 GB in the end (delta: -1.7 GB). Peak memory consumption was 305.2 MB. Max. memory is 7.1 GB. [2018-07-23 13:45:05,106 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 0.19 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 53.19 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 305.81 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 257539.22 ms. Allocated memory was 1.5 GB in the beginning and 3.5 GB in the end (delta: 2.0 GB). Free memory was 1.5 GB in the beginning and 3.2 GB in the end (delta: -1.7 GB). Peak memory consumption was 305.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 76]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 76). Cancelled while BasicCegarLoop was constructing difference of abstraction (372states) and interpolant automaton (currently 122 states, 248 states before enhancement), while ReachableStatesComputation was computing reachable states (120 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. TIMEOUT Result, 257.4s OverallTime, 245 OverallIterations, 123 TraceHistogramMax, 151.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 857 SDtfs, 4016 SDslu, 8668 SDs, 0 SdLazy, 558747 SolverSat, 27518 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 21.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 45753 GetRequests, 7626 SyntacticMatches, 0 SemanticMatches, 38127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1535736 ImplicationChecksByTransitivity, 104.8s Time, 0.3s BasicInterpolantAutomatonTime, BiggestAbstraction: size=372occurred in iteration=244, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 930372/1845738 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 5.9s AutomataMinimizationTime, 244 MinimizatonAttempts, 488 StatesRemovedByMinimization, 122 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.6s SsaConstructionTime, 24.8s SatisfiabilityAnalysisTime, 66.3s InterpolantComputationTime, 45999 NumberOfCodeBlocks, 45999 NumberOfCodeBlocksAsserted, 245 NumberOfCheckSat, 45754 ConstructedInterpolants, 0 QuantifiedInterpolants, 33768412 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 245 InterpolantComputations, 2 PerfectInterpolantSequences, 930372/1845738 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/down.i_4.bplTransformedIcfg_BEv2_5.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-07-23_13-45-05-114.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/down.i_4.bplTransformedIcfg_BEv2_5.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_13-45-05-114.csv Completed graceful shutdown