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/toy/tooDifficultLoopInvariant/Luxembourg-WithArrays.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-935f392 [2018-07-23 13:52:07,501 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 13:52:07,503 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 13:52:07,519 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 13:52:07,519 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 13:52:07,520 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 13:52:07,522 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 13:52:07,523 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 13:52:07,525 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 13:52:07,526 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 13:52:07,527 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-07-23 13:52:07,543 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 13:52:07,543 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 13:52:07,544 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 13:52:07,545 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 13:52:07,546 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 13:52:07,547 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 13:52:07,548 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 13:52:07,548 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 13:52:07,549 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-23 13:52:07,551 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 13:52:07,568 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 13:52:07,568 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 13:52:07,569 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 13:52:07,570 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-07-23 13:52:07,570 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 13:52:07,570 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-07-23 13:52:07,570 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-23 13:52:07,570 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 13:52:07,614 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 13:52:07,634 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 13:52:07,640 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 13:52:07,642 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-23 13:52:07,643 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-23 13:52:07,644 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/Luxembourg-WithArrays.bpl [2018-07-23 13:52:07,644 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/Luxembourg-WithArrays.bpl' [2018-07-23 13:52:07,707 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 13:52:07,709 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-07-23 13:52:07,710 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 13:52:07,710 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 13:52:07,711 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 13:52:07,738 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "Luxembourg-WithArrays.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:52:07" (1/1) ... [2018-07-23 13:52:07,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "Luxembourg-WithArrays.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:52:07" (1/1) ... [2018-07-23 13:52:07,752 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "Luxembourg-WithArrays.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:52:07" (1/1) ... [2018-07-23 13:52:07,753 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "Luxembourg-WithArrays.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:52:07" (1/1) ... [2018-07-23 13:52:07,756 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "Luxembourg-WithArrays.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:52:07" (1/1) ... [2018-07-23 13:52:07,762 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "Luxembourg-WithArrays.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:52:07" (1/1) ... [2018-07-23 13:52:07,763 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "Luxembourg-WithArrays.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:52:07" (1/1) ... [2018-07-23 13:52:07,764 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 13:52:07,765 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 13:52:07,765 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 13:52:07,766 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 13:52:07,767 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "Luxembourg-WithArrays.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:52:07" (1/1) ... [2018-07-23 13:52:07,843 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2018-07-23 13:52:07,844 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-23 13:52:07,844 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-23 13:52:07,976 INFO L258 CfgBuilder]: Using library mode [2018-07-23 13:52:07,977 INFO L202 PluginConnector]: Adding new model Luxembourg-WithArrays.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:52:07 BoogieIcfgContainer [2018-07-23 13:52:07,977 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 13:52:07,978 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 13:52:07,978 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 13:52:07,983 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 13:52:07,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "Luxembourg-WithArrays.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:52:07" (1/2) ... [2018-07-23 13:52:07,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c6f8412 and model type Luxembourg-WithArrays.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:52:07, skipping insertion in model container [2018-07-23 13:52:07,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "Luxembourg-WithArrays.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:52:07" (2/2) ... [2018-07-23 13:52:07,988 INFO L112 eAbstractionObserver]: Analyzing ICFG Luxembourg-WithArrays.bpl [2018-07-23 13:52:07,999 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-07-23 13:52:08,010 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 13:52:08,065 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 13:52:08,066 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 13:52:08,066 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 13:52:08,067 INFO L375 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-07-23 13:52:08,067 INFO L376 AbstractCegarLoop]: Backedges is CANONICAL [2018-07-23 13:52:08,067 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 13:52:08,067 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 13:52:08,067 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 13:52:08,068 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 13:52:08,086 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-07-23 13:52:08,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-07-23 13:52:08,097 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:08,098 INFO L357 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-07-23 13:52:08,099 INFO L414 AbstractCegarLoop]: === Iteration 1 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:08,107 INFO L82 PathProgramCache]: Analyzing trace with hash 30048, now seen corresponding path program 1 times [2018-07-23 13:52:08,114 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:08,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:08,302 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 13:52:08,305 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 13:52:08,305 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-23 13:52:08,307 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:08,308 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 13:52:08,308 INFO L185 omatonBuilderFactory]: Interpolants [9#true, 10#false, 11#(and (= (select main_a main_x) 0) (not (= main_x main_y)))] [2018-07-23 13:52:08,308 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 13:52:08,310 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 13:52:08,324 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 13:52:08,325 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 13:52:08,327 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 3 states. [2018-07-23 13:52:08,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:08,359 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2018-07-23 13:52:08,360 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 13:52:08,361 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2018-07-23 13:52:08,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:08,373 INFO L225 Difference]: With dead ends: 13 [2018-07-23 13:52:08,373 INFO L226 Difference]: Without dead ends: 5 [2018-07-23 13:52:08,377 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 13:52:08,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2018-07-23 13:52:08,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2018-07-23 13:52:08,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-07-23 13:52:08,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2018-07-23 13:52:08,412 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2018-07-23 13:52:08,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:08,413 INFO L471 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2018-07-23 13:52:08,413 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 13:52:08,413 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2018-07-23 13:52:08,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-23 13:52:08,414 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:08,414 INFO L357 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-07-23 13:52:08,414 INFO L414 AbstractCegarLoop]: === Iteration 2 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:08,415 INFO L82 PathProgramCache]: Analyzing trace with hash 927622, now seen corresponding path program 1 times [2018-07-23 13:52:08,415 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:08,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:08,514 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:08,514 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:08,515 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2018-07-23 13:52:08,515 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:08,515 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 13:52:08,515 INFO L185 omatonBuilderFactory]: Interpolants [48#true, 49#false, 50#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 51#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:52:08,516 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:08,517 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 13:52:08,518 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 13:52:08,518 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 13:52:08,518 INFO L87 Difference]: Start difference. First operand 5 states and 5 transitions. Second operand 4 states. [2018-07-23 13:52:08,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:08,537 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2018-07-23 13:52:08,537 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 13:52:08,538 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2018-07-23 13:52:08,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:08,538 INFO L225 Difference]: With dead ends: 8 [2018-07-23 13:52:08,538 INFO L226 Difference]: Without dead ends: 6 [2018-07-23 13:52:08,540 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 13:52:08,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2018-07-23 13:52:08,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2018-07-23 13:52:08,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-07-23 13:52:08,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2018-07-23 13:52:08,543 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2018-07-23 13:52:08,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:08,543 INFO L471 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2018-07-23 13:52:08,543 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 13:52:08,543 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2018-07-23 13:52:08,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-07-23 13:52:08,544 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:08,544 INFO L357 BasicCegarLoop]: trace histogram [2, 1, 1, 1] [2018-07-23 13:52:08,544 INFO L414 AbstractCegarLoop]: === Iteration 3 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:08,545 INFO L82 PathProgramCache]: Analyzing trace with hash 28752416, now seen corresponding path program 2 times [2018-07-23 13:52:08,545 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:08,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:08,671 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:08,671 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:08,671 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2018-07-23 13:52:08,671 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:08,672 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 13:52:08,672 INFO L185 omatonBuilderFactory]: Interpolants [80#true, 81#false, 82#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 83#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 84#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:52:08,672 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:08,673 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-23 13:52:08,673 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-23 13:52:08,673 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-23 13:52:08,674 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand 5 states. [2018-07-23 13:52:08,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:08,696 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2018-07-23 13:52:08,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-23 13:52:08,696 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 5 [2018-07-23 13:52:08,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:08,697 INFO L225 Difference]: With dead ends: 9 [2018-07-23 13:52:08,697 INFO L226 Difference]: Without dead ends: 7 [2018-07-23 13:52:08,698 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-23 13:52:08,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-07-23 13:52:08,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-07-23 13:52:08,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-07-23 13:52:08,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-07-23 13:52:08,708 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2018-07-23 13:52:08,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:08,708 INFO L471 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-07-23 13:52:08,708 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-23 13:52:08,708 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-07-23 13:52:08,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-23 13:52:08,709 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:08,709 INFO L357 BasicCegarLoop]: trace histogram [3, 1, 1, 1] [2018-07-23 13:52:08,709 INFO L414 AbstractCegarLoop]: === Iteration 4 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:08,710 INFO L82 PathProgramCache]: Analyzing trace with hash 891321030, now seen corresponding path program 3 times [2018-07-23 13:52:08,710 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:08,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:08,835 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:08,835 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:08,835 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-07-23 13:52:08,836 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:08,836 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 13:52:08,836 INFO L185 omatonBuilderFactory]: Interpolants [117#true, 118#false, 119#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 120#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 121#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 122#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:52:08,837 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:08,837 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 13:52:08,837 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 13:52:08,837 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-07-23 13:52:08,838 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 6 states. [2018-07-23 13:52:08,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:08,854 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2018-07-23 13:52:08,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-23 13:52:08,854 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 6 [2018-07-23 13:52:08,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:08,855 INFO L225 Difference]: With dead ends: 10 [2018-07-23 13:52:08,855 INFO L226 Difference]: Without dead ends: 8 [2018-07-23 13:52:08,856 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-07-23 13:52:08,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-07-23 13:52:08,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-07-23 13:52:08,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-07-23 13:52:08,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2018-07-23 13:52:08,863 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2018-07-23 13:52:08,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:08,863 INFO L471 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2018-07-23 13:52:08,863 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 13:52:08,864 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2018-07-23 13:52:08,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-07-23 13:52:08,864 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:08,864 INFO L357 BasicCegarLoop]: trace histogram [4, 1, 1, 1] [2018-07-23 13:52:08,865 INFO L414 AbstractCegarLoop]: === Iteration 5 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:08,865 INFO L82 PathProgramCache]: Analyzing trace with hash 1861144288, now seen corresponding path program 4 times [2018-07-23 13:52:08,865 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:08,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:08,994 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:08,995 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:08,995 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2018-07-23 13:52:08,995 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:08,999 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 13:52:08,999 INFO L185 omatonBuilderFactory]: Interpolants [160#false, 161#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 162#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 163#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 164#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 165#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 159#true] [2018-07-23 13:52:08,999 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:09,000 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-23 13:52:09,000 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-23 13:52:09,000 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-07-23 13:52:09,001 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 7 states. [2018-07-23 13:52:09,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:09,026 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2018-07-23 13:52:09,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 13:52:09,027 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 7 [2018-07-23 13:52:09,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:09,027 INFO L225 Difference]: With dead ends: 11 [2018-07-23 13:52:09,028 INFO L226 Difference]: Without dead ends: 9 [2018-07-23 13:52:09,028 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-07-23 13:52:09,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2018-07-23 13:52:09,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-07-23 13:52:09,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-07-23 13:52:09,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-07-23 13:52:09,033 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2018-07-23 13:52:09,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:09,033 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2018-07-23 13:52:09,033 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-23 13:52:09,033 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2018-07-23 13:52:09,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-07-23 13:52:09,034 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:09,034 INFO L357 BasicCegarLoop]: trace histogram [5, 1, 1, 1] [2018-07-23 13:52:09,035 INFO L414 AbstractCegarLoop]: === Iteration 6 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:09,035 INFO L82 PathProgramCache]: Analyzing trace with hash 1860894214, now seen corresponding path program 5 times [2018-07-23 13:52:09,035 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:09,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:09,158 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:09,159 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:09,159 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2018-07-23 13:52:09,159 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:09,160 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 13:52:09,160 INFO L185 omatonBuilderFactory]: Interpolants [208#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 209#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 210#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 211#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 212#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 213#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 206#true, 207#false] [2018-07-23 13:52:09,160 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:09,161 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-23 13:52:09,161 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-23 13:52:09,161 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-07-23 13:52:09,162 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 8 states. [2018-07-23 13:52:09,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:09,181 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2018-07-23 13:52:09,181 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-23 13:52:09,181 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 8 [2018-07-23 13:52:09,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:09,182 INFO L225 Difference]: With dead ends: 12 [2018-07-23 13:52:09,182 INFO L226 Difference]: Without dead ends: 10 [2018-07-23 13:52:09,183 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-07-23 13:52:09,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2018-07-23 13:52:09,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-07-23 13:52:09,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-07-23 13:52:09,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2018-07-23 13:52:09,188 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2018-07-23 13:52:09,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:09,188 INFO L471 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2018-07-23 13:52:09,188 INFO L472 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-23 13:52:09,189 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2018-07-23 13:52:09,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-07-23 13:52:09,189 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:09,189 INFO L357 BasicCegarLoop]: trace histogram [6, 1, 1, 1] [2018-07-23 13:52:09,190 INFO L414 AbstractCegarLoop]: === Iteration 7 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:09,190 INFO L82 PathProgramCache]: Analyzing trace with hash 1853141920, now seen corresponding path program 6 times [2018-07-23 13:52:09,190 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:09,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:09,361 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:09,362 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:09,362 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2018-07-23 13:52:09,362 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:09,363 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 13:52:09,363 INFO L185 omatonBuilderFactory]: Interpolants [258#true, 259#false, 260#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 261#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 262#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 263#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 264#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 265#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 266#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:52:09,363 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:09,364 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-23 13:52:09,364 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-23 13:52:09,364 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2018-07-23 13:52:09,365 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 9 states. [2018-07-23 13:52:09,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:09,384 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2018-07-23 13:52:09,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-07-23 13:52:09,384 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 9 [2018-07-23 13:52:09,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:09,385 INFO L225 Difference]: With dead ends: 13 [2018-07-23 13:52:09,385 INFO L226 Difference]: Without dead ends: 11 [2018-07-23 13:52:09,386 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2018-07-23 13:52:09,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2018-07-23 13:52:09,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-07-23 13:52:09,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-07-23 13:52:09,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-07-23 13:52:09,391 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 9 [2018-07-23 13:52:09,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:09,391 INFO L471 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2018-07-23 13:52:09,391 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-23 13:52:09,392 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2018-07-23 13:52:09,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-07-23 13:52:09,392 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:09,392 INFO L357 BasicCegarLoop]: trace histogram [7, 1, 1, 1] [2018-07-23 13:52:09,393 INFO L414 AbstractCegarLoop]: === Iteration 8 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:09,393 INFO L82 PathProgramCache]: Analyzing trace with hash 1612820806, now seen corresponding path program 7 times [2018-07-23 13:52:09,393 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:09,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:09,582 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:09,583 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:09,583 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2018-07-23 13:52:09,586 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:09,586 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 13:52:09,587 INFO L185 omatonBuilderFactory]: Interpolants [320#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 321#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 322#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 323#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 324#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 315#true, 316#false, 317#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 318#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 319#(and (not (= main_x main_y)) (<= (select main_a main_x) 2))] [2018-07-23 13:52:09,589 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:09,590 INFO L450 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-07-23 13:52:09,590 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-07-23 13:52:09,593 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2018-07-23 13:52:09,593 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 10 states. [2018-07-23 13:52:09,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:09,633 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2018-07-23 13:52:09,633 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-07-23 13:52:09,634 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 10 [2018-07-23 13:52:09,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:09,636 INFO L225 Difference]: With dead ends: 14 [2018-07-23 13:52:09,636 INFO L226 Difference]: Without dead ends: 12 [2018-07-23 13:52:09,637 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2018-07-23 13:52:09,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-07-23 13:52:09,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-07-23 13:52:09,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-07-23 13:52:09,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-07-23 13:52:09,646 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2018-07-23 13:52:09,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:09,648 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2018-07-23 13:52:09,648 INFO L472 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-07-23 13:52:09,648 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2018-07-23 13:52:09,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-07-23 13:52:09,649 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:09,649 INFO L357 BasicCegarLoop]: trace histogram [8, 1, 1, 1] [2018-07-23 13:52:09,651 INFO L414 AbstractCegarLoop]: === Iteration 9 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:09,652 INFO L82 PathProgramCache]: Analyzing trace with hash -1542166432, now seen corresponding path program 8 times [2018-07-23 13:52:09,652 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:09,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:09,831 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:09,831 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:09,832 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2018-07-23 13:52:09,832 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:09,835 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 13:52:09,838 INFO L185 omatonBuilderFactory]: Interpolants [384#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 385#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 386#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 387#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 377#true, 378#false, 379#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 380#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 381#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 382#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 383#(and (<= (select main_a main_x) 4) (not (= main_x main_y)))] [2018-07-23 13:52:09,838 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:09,839 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-23 13:52:09,839 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-23 13:52:09,840 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2018-07-23 13:52:09,841 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 11 states. [2018-07-23 13:52:09,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:09,877 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2018-07-23 13:52:09,877 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-07-23 13:52:09,877 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 11 [2018-07-23 13:52:09,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:09,878 INFO L225 Difference]: With dead ends: 15 [2018-07-23 13:52:09,878 INFO L226 Difference]: Without dead ends: 13 [2018-07-23 13:52:09,879 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2018-07-23 13:52:09,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2018-07-23 13:52:09,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-07-23 13:52:09,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-07-23 13:52:09,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2018-07-23 13:52:09,884 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2018-07-23 13:52:09,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:09,885 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2018-07-23 13:52:09,885 INFO L472 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-07-23 13:52:09,886 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2018-07-23 13:52:09,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-07-23 13:52:09,887 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:09,887 INFO L357 BasicCegarLoop]: trace histogram [9, 1, 1, 1] [2018-07-23 13:52:09,888 INFO L414 AbstractCegarLoop]: === Iteration 10 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:09,888 INFO L82 PathProgramCache]: Analyzing trace with hash -562523002, now seen corresponding path program 9 times [2018-07-23 13:52:09,888 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:09,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:10,055 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:10,055 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:10,056 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-07-23 13:52:10,056 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:10,056 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 13:52:10,057 INFO L185 omatonBuilderFactory]: Interpolants [448#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 449#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 450#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 451#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 452#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 453#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 454#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 455#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 444#true, 445#false, 446#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 447#(and (not (= main_x main_y)) (<= (select main_a main_x) 1))] [2018-07-23 13:52:10,057 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:10,057 INFO L450 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-07-23 13:52:10,058 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-07-23 13:52:10,058 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2018-07-23 13:52:10,060 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 12 states. [2018-07-23 13:52:10,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:10,088 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2018-07-23 13:52:10,088 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-07-23 13:52:10,088 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 12 [2018-07-23 13:52:10,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:10,089 INFO L225 Difference]: With dead ends: 16 [2018-07-23 13:52:10,089 INFO L226 Difference]: Without dead ends: 14 [2018-07-23 13:52:10,090 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2018-07-23 13:52:10,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-07-23 13:52:10,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-07-23 13:52:10,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-07-23 13:52:10,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-07-23 13:52:10,095 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2018-07-23 13:52:10,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:10,095 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2018-07-23 13:52:10,095 INFO L472 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-07-23 13:52:10,096 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-07-23 13:52:10,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-07-23 13:52:10,096 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:10,097 INFO L357 BasicCegarLoop]: trace histogram [10, 1, 1, 1] [2018-07-23 13:52:10,097 INFO L414 AbstractCegarLoop]: === Iteration 11 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:10,098 INFO L82 PathProgramCache]: Analyzing trace with hash -258347744, now seen corresponding path program 10 times [2018-07-23 13:52:10,098 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:10,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:10,285 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:10,286 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:10,286 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2018-07-23 13:52:10,287 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:10,287 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 13:52:10,289 INFO L185 omatonBuilderFactory]: Interpolants [516#true, 517#false, 518#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 519#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 520#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 521#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 522#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 523#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 524#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 525#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 526#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 527#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 528#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:52:10,290 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:10,290 INFO L450 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-07-23 13:52:10,290 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-07-23 13:52:10,291 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2018-07-23 13:52:10,291 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 13 states. [2018-07-23 13:52:10,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:10,311 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2018-07-23 13:52:10,311 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-23 13:52:10,312 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 13 [2018-07-23 13:52:10,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:10,312 INFO L225 Difference]: With dead ends: 17 [2018-07-23 13:52:10,313 INFO L226 Difference]: Without dead ends: 15 [2018-07-23 13:52:10,313 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2018-07-23 13:52:10,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-07-23 13:52:10,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-07-23 13:52:10,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-07-23 13:52:10,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2018-07-23 13:52:10,319 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 13 [2018-07-23 13:52:10,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:10,319 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2018-07-23 13:52:10,319 INFO L472 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-07-23 13:52:10,320 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2018-07-23 13:52:10,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-07-23 13:52:10,321 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:10,321 INFO L357 BasicCegarLoop]: trace histogram [11, 1, 1, 1] [2018-07-23 13:52:10,322 INFO L414 AbstractCegarLoop]: === Iteration 12 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:10,322 INFO L82 PathProgramCache]: Analyzing trace with hash 581150662, now seen corresponding path program 11 times [2018-07-23 13:52:10,323 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:10,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:10,500 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:10,501 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:10,501 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2018-07-23 13:52:10,501 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:10,501 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 13:52:10,502 INFO L185 omatonBuilderFactory]: Interpolants [593#true, 594#false, 595#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 596#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 597#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 598#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 599#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 600#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 601#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 602#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 603#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 604#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 605#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 606#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:52:10,503 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:10,503 INFO L450 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-07-23 13:52:10,503 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-07-23 13:52:10,504 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2018-07-23 13:52:10,504 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 14 states. [2018-07-23 13:52:10,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:10,533 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2018-07-23 13:52:10,533 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-07-23 13:52:10,534 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 14 [2018-07-23 13:52:10,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:10,534 INFO L225 Difference]: With dead ends: 18 [2018-07-23 13:52:10,535 INFO L226 Difference]: Without dead ends: 16 [2018-07-23 13:52:10,535 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2018-07-23 13:52:10,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-07-23 13:52:10,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-07-23 13:52:10,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-07-23 13:52:10,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2018-07-23 13:52:10,540 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 14 [2018-07-23 13:52:10,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:10,540 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2018-07-23 13:52:10,540 INFO L472 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-07-23 13:52:10,541 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2018-07-23 13:52:10,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-07-23 13:52:10,546 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:10,546 INFO L357 BasicCegarLoop]: trace histogram [12, 1, 1, 1] [2018-07-23 13:52:10,546 INFO L414 AbstractCegarLoop]: === Iteration 13 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:10,546 INFO L82 PathProgramCache]: Analyzing trace with hash 835797472, now seen corresponding path program 12 times [2018-07-23 13:52:10,547 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:10,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:10,744 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:10,745 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:10,745 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-07-23 13:52:10,745 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:10,747 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 13:52:10,748 INFO L185 omatonBuilderFactory]: Interpolants [675#true, 676#false, 677#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 678#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 679#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 680#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 681#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 682#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 683#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 684#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 685#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 686#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 687#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 688#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 689#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:52:10,748 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:10,749 INFO L450 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-07-23 13:52:10,749 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-07-23 13:52:10,749 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2018-07-23 13:52:10,750 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 15 states. [2018-07-23 13:52:10,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:10,784 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2018-07-23 13:52:10,785 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-07-23 13:52:10,785 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 15 [2018-07-23 13:52:10,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:10,786 INFO L225 Difference]: With dead ends: 19 [2018-07-23 13:52:10,786 INFO L226 Difference]: Without dead ends: 17 [2018-07-23 13:52:10,789 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2018-07-23 13:52:10,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-07-23 13:52:10,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-07-23 13:52:10,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-07-23 13:52:10,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2018-07-23 13:52:10,796 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 15 [2018-07-23 13:52:10,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:10,796 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2018-07-23 13:52:10,796 INFO L472 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-07-23 13:52:10,796 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2018-07-23 13:52:10,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-07-23 13:52:10,797 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:10,797 INFO L357 BasicCegarLoop]: trace histogram [13, 1, 1, 1] [2018-07-23 13:52:10,797 INFO L414 AbstractCegarLoop]: === Iteration 14 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:10,798 INFO L82 PathProgramCache]: Analyzing trace with hash 139913990, now seen corresponding path program 13 times [2018-07-23 13:52:10,798 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:10,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:11,036 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:11,036 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:11,037 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2018-07-23 13:52:11,037 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:11,037 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 13:52:11,038 INFO L185 omatonBuilderFactory]: Interpolants [768#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 769#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 770#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 771#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 772#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 773#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 774#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 775#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 776#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 777#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 762#true, 763#false, 764#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 765#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 766#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 767#(and (not (= main_x main_y)) (<= (select main_a main_x) 3))] [2018-07-23 13:52:11,038 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:11,038 INFO L450 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-07-23 13:52:11,039 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-07-23 13:52:11,039 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2018-07-23 13:52:11,040 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 16 states. [2018-07-23 13:52:11,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:11,063 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2018-07-23 13:52:11,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-07-23 13:52:11,063 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 16 [2018-07-23 13:52:11,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:11,064 INFO L225 Difference]: With dead ends: 20 [2018-07-23 13:52:11,064 INFO L226 Difference]: Without dead ends: 18 [2018-07-23 13:52:11,065 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2018-07-23 13:52:11,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-07-23 13:52:11,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-07-23 13:52:11,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-07-23 13:52:11,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2018-07-23 13:52:11,072 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 16 [2018-07-23 13:52:11,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:11,073 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2018-07-23 13:52:11,073 INFO L472 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-07-23 13:52:11,073 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2018-07-23 13:52:11,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-07-23 13:52:11,074 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:11,074 INFO L357 BasicCegarLoop]: trace histogram [14, 1, 1, 1] [2018-07-23 13:52:11,074 INFO L414 AbstractCegarLoop]: === Iteration 15 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:11,074 INFO L82 PathProgramCache]: Analyzing trace with hash 42362528, now seen corresponding path program 14 times [2018-07-23 13:52:11,075 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:11,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:11,279 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:11,280 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:11,280 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2018-07-23 13:52:11,280 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:11,281 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 13:52:11,281 INFO L185 omatonBuilderFactory]: Interpolants [864#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 865#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 866#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 867#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 868#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 869#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 870#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 854#true, 855#false, 856#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 857#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 858#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 859#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 860#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 861#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 862#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 863#(and (<= (select main_a main_x) 7) (not (= main_x main_y)))] [2018-07-23 13:52:11,281 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:11,282 INFO L450 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-07-23 13:52:11,282 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-07-23 13:52:11,282 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2018-07-23 13:52:11,283 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 17 states. [2018-07-23 13:52:11,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:11,301 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2018-07-23 13:52:11,301 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-07-23 13:52:11,302 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 17 [2018-07-23 13:52:11,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:11,302 INFO L225 Difference]: With dead ends: 21 [2018-07-23 13:52:11,303 INFO L226 Difference]: Without dead ends: 19 [2018-07-23 13:52:11,303 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2018-07-23 13:52:11,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-07-23 13:52:11,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-07-23 13:52:11,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-07-23 13:52:11,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2018-07-23 13:52:11,308 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 17 [2018-07-23 13:52:11,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:11,308 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2018-07-23 13:52:11,308 INFO L472 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-07-23 13:52:11,309 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2018-07-23 13:52:11,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-07-23 13:52:11,309 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:11,309 INFO L357 BasicCegarLoop]: trace histogram [15, 1, 1, 1] [2018-07-23 13:52:11,310 INFO L414 AbstractCegarLoop]: === Iteration 16 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:11,310 INFO L82 PathProgramCache]: Analyzing trace with hash 1313234502, now seen corresponding path program 15 times [2018-07-23 13:52:11,310 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:11,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:11,519 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:11,520 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:11,520 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2018-07-23 13:52:11,520 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:11,521 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 13:52:11,521 INFO L185 omatonBuilderFactory]: Interpolants [960#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 961#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 962#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 963#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 964#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 965#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 966#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 967#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 968#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 951#true, 952#false, 953#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 954#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 955#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 956#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 957#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 958#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 959#(and (<= (select main_a main_x) 6) (not (= main_x main_y)))] [2018-07-23 13:52:11,521 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:11,522 INFO L450 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-07-23 13:52:11,522 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-07-23 13:52:11,522 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2018-07-23 13:52:11,523 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 18 states. [2018-07-23 13:52:11,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:11,543 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2018-07-23 13:52:11,543 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-07-23 13:52:11,543 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 18 [2018-07-23 13:52:11,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:11,544 INFO L225 Difference]: With dead ends: 22 [2018-07-23 13:52:11,544 INFO L226 Difference]: Without dead ends: 20 [2018-07-23 13:52:11,545 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2018-07-23 13:52:11,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-07-23 13:52:11,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-07-23 13:52:11,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-07-23 13:52:11,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2018-07-23 13:52:11,549 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 18 [2018-07-23 13:52:11,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:11,549 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2018-07-23 13:52:11,550 INFO L472 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-07-23 13:52:11,550 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2018-07-23 13:52:11,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-07-23 13:52:11,550 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:11,551 INFO L357 BasicCegarLoop]: trace histogram [16, 1, 1, 1] [2018-07-23 13:52:11,551 INFO L414 AbstractCegarLoop]: === Iteration 17 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:11,551 INFO L82 PathProgramCache]: Analyzing trace with hash 2055560032, now seen corresponding path program 16 times [2018-07-23 13:52:11,551 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:11,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:11,787 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:11,788 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:11,788 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2018-07-23 13:52:11,788 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:11,789 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 13:52:11,790 INFO L185 omatonBuilderFactory]: Interpolants [1056#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 1057#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 1058#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 1059#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 1060#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 1061#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 1062#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 1063#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 1064#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 1065#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 1066#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 1067#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 1068#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 1069#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 1070#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 1071#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 1053#true, 1054#false, 1055#(and (= 0 (select main_a main_x)) (not (= main_x main_y)))] [2018-07-23 13:52:11,790 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:11,791 INFO L450 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-07-23 13:52:11,791 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-07-23 13:52:11,792 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2018-07-23 13:52:11,792 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 19 states. [2018-07-23 13:52:11,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:11,824 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2018-07-23 13:52:11,824 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-07-23 13:52:11,824 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 19 [2018-07-23 13:52:11,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:11,825 INFO L225 Difference]: With dead ends: 23 [2018-07-23 13:52:11,826 INFO L226 Difference]: Without dead ends: 21 [2018-07-23 13:52:11,826 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2018-07-23 13:52:11,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-07-23 13:52:11,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-07-23 13:52:11,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-07-23 13:52:11,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2018-07-23 13:52:11,831 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 19 [2018-07-23 13:52:11,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:11,831 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2018-07-23 13:52:11,832 INFO L472 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-07-23 13:52:11,832 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2018-07-23 13:52:11,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-07-23 13:52:11,832 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:11,833 INFO L357 BasicCegarLoop]: trace histogram [17, 1, 1, 1] [2018-07-23 13:52:11,833 INFO L414 AbstractCegarLoop]: === Iteration 18 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:11,833 INFO L82 PathProgramCache]: Analyzing trace with hash -702152314, now seen corresponding path program 17 times [2018-07-23 13:52:11,834 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:11,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:12,093 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:12,094 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:12,094 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2018-07-23 13:52:12,094 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:12,094 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 13:52:12,095 INFO L185 omatonBuilderFactory]: Interpolants [1160#true, 1161#false, 1162#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 1163#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 1164#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 1165#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 1166#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 1167#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 1168#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 1169#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 1170#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 1171#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 1172#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 1173#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 1174#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 1175#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 1176#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 1177#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 1178#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 1179#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:52:12,095 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:12,095 INFO L450 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-07-23 13:52:12,096 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-07-23 13:52:12,096 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2018-07-23 13:52:12,097 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 20 states. [2018-07-23 13:52:12,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:12,122 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2018-07-23 13:52:12,122 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-07-23 13:52:12,122 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 20 [2018-07-23 13:52:12,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:12,123 INFO L225 Difference]: With dead ends: 24 [2018-07-23 13:52:12,123 INFO L226 Difference]: Without dead ends: 22 [2018-07-23 13:52:12,124 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2018-07-23 13:52:12,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-07-23 13:52:12,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-07-23 13:52:12,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-07-23 13:52:12,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2018-07-23 13:52:12,129 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 20 [2018-07-23 13:52:12,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:12,129 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2018-07-23 13:52:12,129 INFO L472 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-07-23 13:52:12,129 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2018-07-23 13:52:12,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-07-23 13:52:12,130 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:12,130 INFO L357 BasicCegarLoop]: trace histogram [18, 1, 1, 1] [2018-07-23 13:52:12,131 INFO L414 AbstractCegarLoop]: === Iteration 19 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:12,131 INFO L82 PathProgramCache]: Analyzing trace with hash -291889120, now seen corresponding path program 18 times [2018-07-23 13:52:12,131 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:12,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:12,485 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:12,486 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:12,486 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-07-23 13:52:12,486 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:12,486 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 13:52:12,487 INFO L185 omatonBuilderFactory]: Interpolants [1280#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 1281#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 1282#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 1283#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 1284#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 1285#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 1286#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 1287#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 1288#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 1289#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 1290#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 1291#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 1292#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 1272#true, 1273#false, 1274#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 1275#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 1276#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 1277#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 1278#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 1279#(and (<= (select main_a main_x) 5) (not (= main_x main_y)))] [2018-07-23 13:52:12,487 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:12,488 INFO L450 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-07-23 13:52:12,488 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-07-23 13:52:12,488 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2018-07-23 13:52:12,489 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 21 states. [2018-07-23 13:52:12,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:12,512 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2018-07-23 13:52:12,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-07-23 13:52:12,512 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 21 [2018-07-23 13:52:12,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:12,513 INFO L225 Difference]: With dead ends: 25 [2018-07-23 13:52:12,513 INFO L226 Difference]: Without dead ends: 23 [2018-07-23 13:52:12,514 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2018-07-23 13:52:12,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-07-23 13:52:12,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-07-23 13:52:12,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-07-23 13:52:12,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2018-07-23 13:52:12,521 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 21 [2018-07-23 13:52:12,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:12,522 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2018-07-23 13:52:12,522 INFO L472 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-07-23 13:52:12,522 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2018-07-23 13:52:12,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-07-23 13:52:12,523 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:12,523 INFO L357 BasicCegarLoop]: trace histogram [19, 1, 1, 1] [2018-07-23 13:52:12,523 INFO L414 AbstractCegarLoop]: === Iteration 20 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:12,523 INFO L82 PathProgramCache]: Analyzing trace with hash -458631994, now seen corresponding path program 19 times [2018-07-23 13:52:12,523 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:12,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:12,792 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:12,793 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:12,793 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-07-23 13:52:12,796 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:12,796 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 13:52:12,796 INFO L185 omatonBuilderFactory]: Interpolants [1408#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 1409#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 1410#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 1389#true, 1390#false, 1391#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 1392#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 1393#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 1394#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 1395#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 1396#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 1397#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 1398#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 1399#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 1400#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 1401#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 1402#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 1403#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 1404#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 1405#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 1406#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 1407#(and (<= (select main_a main_x) 16) (not (= main_x main_y)))] [2018-07-23 13:52:12,797 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:12,797 INFO L450 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-07-23 13:52:12,797 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-07-23 13:52:12,798 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2018-07-23 13:52:12,798 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand 22 states. [2018-07-23 13:52:12,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:12,818 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2018-07-23 13:52:12,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-07-23 13:52:12,818 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 22 [2018-07-23 13:52:12,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:12,819 INFO L225 Difference]: With dead ends: 26 [2018-07-23 13:52:12,819 INFO L226 Difference]: Without dead ends: 24 [2018-07-23 13:52:12,819 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2018-07-23 13:52:12,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-07-23 13:52:12,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-07-23 13:52:12,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-07-23 13:52:12,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2018-07-23 13:52:12,824 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 22 [2018-07-23 13:52:12,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:12,825 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2018-07-23 13:52:12,825 INFO L472 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-07-23 13:52:12,825 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2018-07-23 13:52:12,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-07-23 13:52:12,826 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:12,826 INFO L357 BasicCegarLoop]: trace histogram [20, 1, 1, 1] [2018-07-23 13:52:12,826 INFO L414 AbstractCegarLoop]: === Iteration 21 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:12,826 INFO L82 PathProgramCache]: Analyzing trace with hash -1332693792, now seen corresponding path program 20 times [2018-07-23 13:52:12,826 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:12,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:13,138 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:13,138 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:13,138 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2018-07-23 13:52:13,138 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:13,139 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 13:52:13,139 INFO L185 omatonBuilderFactory]: Interpolants [1511#true, 1512#false, 1513#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 1514#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 1515#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 1516#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 1517#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 1518#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 1519#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 1520#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 1521#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 1522#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 1523#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 1524#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 1525#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 1526#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 1527#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 1528#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 1529#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 1530#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 1531#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 1532#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 1533#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:52:13,139 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:13,140 INFO L450 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-07-23 13:52:13,140 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-07-23 13:52:13,140 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2018-07-23 13:52:13,141 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 23 states. [2018-07-23 13:52:13,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:13,170 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2018-07-23 13:52:13,170 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-07-23 13:52:13,170 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 23 [2018-07-23 13:52:13,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:13,171 INFO L225 Difference]: With dead ends: 27 [2018-07-23 13:52:13,171 INFO L226 Difference]: Without dead ends: 25 [2018-07-23 13:52:13,172 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2018-07-23 13:52:13,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-07-23 13:52:13,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-07-23 13:52:13,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-07-23 13:52:13,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2018-07-23 13:52:13,179 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 23 [2018-07-23 13:52:13,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:13,179 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2018-07-23 13:52:13,179 INFO L472 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-07-23 13:52:13,180 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2018-07-23 13:52:13,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-07-23 13:52:13,180 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:13,181 INFO L357 BasicCegarLoop]: trace histogram [21, 1, 1, 1] [2018-07-23 13:52:13,181 INFO L414 AbstractCegarLoop]: === Iteration 22 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:13,181 INFO L82 PathProgramCache]: Analyzing trace with hash 1636161542, now seen corresponding path program 21 times [2018-07-23 13:52:13,181 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:13,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:13,496 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:13,496 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:13,496 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-07-23 13:52:13,497 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:13,497 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 13:52:13,497 INFO L185 omatonBuilderFactory]: Interpolants [1638#true, 1639#false, 1640#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 1641#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 1642#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 1643#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 1644#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 1645#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 1646#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 1647#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 1648#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 1649#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 1650#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 1651#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 1652#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 1653#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 1654#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 1655#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 1656#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 1657#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 1658#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 1659#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 1660#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 1661#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:52:13,498 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:13,498 INFO L450 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-07-23 13:52:13,498 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-07-23 13:52:13,499 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2018-07-23 13:52:13,499 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand 24 states. [2018-07-23 13:52:13,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:13,531 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2018-07-23 13:52:13,531 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-07-23 13:52:13,531 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 24 [2018-07-23 13:52:13,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:13,532 INFO L225 Difference]: With dead ends: 28 [2018-07-23 13:52:13,532 INFO L226 Difference]: Without dead ends: 26 [2018-07-23 13:52:13,533 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2018-07-23 13:52:13,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-07-23 13:52:13,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2018-07-23 13:52:13,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-07-23 13:52:13,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2018-07-23 13:52:13,545 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 24 [2018-07-23 13:52:13,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:13,545 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2018-07-23 13:52:13,545 INFO L472 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-07-23 13:52:13,545 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2018-07-23 13:52:13,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-07-23 13:52:13,546 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:13,547 INFO L357 BasicCegarLoop]: trace histogram [22, 1, 1, 1] [2018-07-23 13:52:13,547 INFO L414 AbstractCegarLoop]: === Iteration 23 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:13,547 INFO L82 PathProgramCache]: Analyzing trace with hash -818603616, now seen corresponding path program 22 times [2018-07-23 13:52:13,547 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:13,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:13,850 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:13,851 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:13,851 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2018-07-23 13:52:13,851 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:13,851 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 13:52:13,852 INFO L185 omatonBuilderFactory]: Interpolants [1792#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 1793#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 1794#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 1770#true, 1771#false, 1772#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 1773#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 1774#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 1775#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 1776#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 1777#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 1778#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 1779#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 1780#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 1781#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 1782#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 1783#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 1784#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 1785#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 1786#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 1787#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 1788#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 1789#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 1790#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 1791#(and (<= (select main_a main_x) 19) (not (= main_x main_y)))] [2018-07-23 13:52:13,852 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:13,852 INFO L450 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-07-23 13:52:13,852 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-07-23 13:52:13,853 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2018-07-23 13:52:13,853 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand 25 states. [2018-07-23 13:52:13,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:13,873 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2018-07-23 13:52:13,873 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-07-23 13:52:13,873 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 25 [2018-07-23 13:52:13,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:13,874 INFO L225 Difference]: With dead ends: 29 [2018-07-23 13:52:13,874 INFO L226 Difference]: Without dead ends: 27 [2018-07-23 13:52:13,874 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2018-07-23 13:52:13,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-07-23 13:52:13,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-07-23 13:52:13,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-07-23 13:52:13,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2018-07-23 13:52:13,879 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 25 [2018-07-23 13:52:13,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:13,879 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2018-07-23 13:52:13,880 INFO L472 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-07-23 13:52:13,880 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2018-07-23 13:52:13,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-07-23 13:52:13,880 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:13,880 INFO L357 BasicCegarLoop]: trace histogram [23, 1, 1, 1] [2018-07-23 13:52:13,881 INFO L414 AbstractCegarLoop]: === Iteration 24 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:13,881 INFO L82 PathProgramCache]: Analyzing trace with hash 393087814, now seen corresponding path program 23 times [2018-07-23 13:52:13,881 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:13,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:14,185 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:14,185 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:14,185 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2018-07-23 13:52:14,185 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:14,186 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 13:52:14,186 INFO L185 omatonBuilderFactory]: Interpolants [1920#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 1921#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 1922#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 1923#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 1924#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 1925#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 1926#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 1927#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 1928#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 1929#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 1930#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 1931#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 1932#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 1907#true, 1908#false, 1909#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 1910#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 1911#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 1912#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 1913#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 1914#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 1915#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 1916#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 1917#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 1918#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 1919#(and (not (= main_x main_y)) (<= (select main_a main_x) 10))] [2018-07-23 13:52:14,186 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:14,187 INFO L450 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-07-23 13:52:14,187 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-07-23 13:52:14,187 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2018-07-23 13:52:14,188 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand 26 states. [2018-07-23 13:52:14,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:14,210 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2018-07-23 13:52:14,210 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-07-23 13:52:14,210 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 26 [2018-07-23 13:52:14,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:14,211 INFO L225 Difference]: With dead ends: 30 [2018-07-23 13:52:14,211 INFO L226 Difference]: Without dead ends: 28 [2018-07-23 13:52:14,212 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2018-07-23 13:52:14,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-07-23 13:52:14,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-07-23 13:52:14,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-07-23 13:52:14,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2018-07-23 13:52:14,216 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 26 [2018-07-23 13:52:14,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:14,217 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2018-07-23 13:52:14,217 INFO L472 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-07-23 13:52:14,217 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2018-07-23 13:52:14,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-07-23 13:52:14,217 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:14,218 INFO L357 BasicCegarLoop]: trace histogram [24, 1, 1, 1] [2018-07-23 13:52:14,218 INFO L414 AbstractCegarLoop]: === Iteration 25 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:14,218 INFO L82 PathProgramCache]: Analyzing trace with hash -699183520, now seen corresponding path program 24 times [2018-07-23 13:52:14,218 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:14,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:14,537 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:14,538 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:14,538 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-07-23 13:52:14,538 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:14,538 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 13:52:14,539 INFO L185 omatonBuilderFactory]: Interpolants [2049#true, 2050#false, 2051#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 2052#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 2053#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 2054#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 2055#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 2056#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 2057#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 2058#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 2059#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 2060#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 2061#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 2062#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 2063#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 2064#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 2065#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 2066#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 2067#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 2068#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 2069#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 2070#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 2071#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 2072#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 2073#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 2074#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 2075#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:52:14,539 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:14,539 INFO L450 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-07-23 13:52:14,540 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-07-23 13:52:14,540 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2018-07-23 13:52:14,541 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand 27 states. [2018-07-23 13:52:14,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:14,568 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2018-07-23 13:52:14,569 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-07-23 13:52:14,569 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 27 [2018-07-23 13:52:14,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:14,569 INFO L225 Difference]: With dead ends: 31 [2018-07-23 13:52:14,569 INFO L226 Difference]: Without dead ends: 29 [2018-07-23 13:52:14,570 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2018-07-23 13:52:14,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-07-23 13:52:14,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2018-07-23 13:52:14,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-07-23 13:52:14,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2018-07-23 13:52:14,575 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 27 [2018-07-23 13:52:14,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:14,575 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2018-07-23 13:52:14,575 INFO L472 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-07-23 13:52:14,575 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2018-07-23 13:52:14,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-07-23 13:52:14,576 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:14,576 INFO L357 BasicCegarLoop]: trace histogram [25, 1, 1, 1] [2018-07-23 13:52:14,576 INFO L414 AbstractCegarLoop]: === Iteration 26 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:14,576 INFO L82 PathProgramCache]: Analyzing trace with hash -199856506, now seen corresponding path program 25 times [2018-07-23 13:52:14,576 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:14,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:14,909 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:14,909 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:14,909 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-07-23 13:52:14,910 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:14,910 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 13:52:14,910 INFO L185 omatonBuilderFactory]: Interpolants [2196#true, 2197#false, 2198#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 2199#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 2200#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 2201#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 2202#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 2203#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 2204#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 2205#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 2206#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 2207#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 2208#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 2209#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 2210#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 2211#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 2212#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 2213#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 2214#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 2215#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 2216#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 2217#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 2218#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 2219#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 2220#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 2221#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 2222#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 2223#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:52:14,911 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:14,911 INFO L450 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-07-23 13:52:14,912 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-07-23 13:52:14,913 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2018-07-23 13:52:14,913 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand 28 states. [2018-07-23 13:52:14,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:14,946 INFO L93 Difference]: Finished difference Result 32 states and 32 transitions. [2018-07-23 13:52:14,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-07-23 13:52:14,946 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 28 [2018-07-23 13:52:14,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:14,947 INFO L225 Difference]: With dead ends: 32 [2018-07-23 13:52:14,947 INFO L226 Difference]: Without dead ends: 30 [2018-07-23 13:52:14,949 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2018-07-23 13:52:14,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-07-23 13:52:14,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2018-07-23 13:52:14,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-07-23 13:52:14,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2018-07-23 13:52:14,954 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 28 [2018-07-23 13:52:14,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:14,954 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2018-07-23 13:52:14,954 INFO L472 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-07-23 13:52:14,955 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2018-07-23 13:52:14,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-07-23 13:52:14,957 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:14,957 INFO L357 BasicCegarLoop]: trace histogram [26, 1, 1, 1] [2018-07-23 13:52:14,957 INFO L414 AbstractCegarLoop]: === Iteration 27 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:14,957 INFO L82 PathProgramCache]: Analyzing trace with hash -1900588256, now seen corresponding path program 26 times [2018-07-23 13:52:14,957 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:14,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:15,344 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 351 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:15,344 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:15,345 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2018-07-23 13:52:15,345 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:15,345 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 13:52:15,346 INFO L185 omatonBuilderFactory]: Interpolants [2368#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 2369#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 2370#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 2371#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 2372#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 2373#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 2374#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 2375#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 2376#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 2348#true, 2349#false, 2350#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 2351#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 2352#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 2353#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 2354#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 2355#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 2356#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 2357#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 2358#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 2359#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 2360#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 2361#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 2362#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 2363#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 2364#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 2365#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 2366#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 2367#(and (not (= main_x main_y)) (<= (select main_a main_x) 17))] [2018-07-23 13:52:15,346 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 351 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:15,346 INFO L450 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-07-23 13:52:15,347 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-07-23 13:52:15,347 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=406, Invalid=406, Unknown=0, NotChecked=0, Total=812 [2018-07-23 13:52:15,348 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand 29 states. [2018-07-23 13:52:15,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:15,372 INFO L93 Difference]: Finished difference Result 33 states and 33 transitions. [2018-07-23 13:52:15,373 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-07-23 13:52:15,373 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 29 [2018-07-23 13:52:15,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:15,373 INFO L225 Difference]: With dead ends: 33 [2018-07-23 13:52:15,374 INFO L226 Difference]: Without dead ends: 31 [2018-07-23 13:52:15,374 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=406, Invalid=406, Unknown=0, NotChecked=0, Total=812 [2018-07-23 13:52:15,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-07-23 13:52:15,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2018-07-23 13:52:15,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-07-23 13:52:15,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2018-07-23 13:52:15,379 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 29 [2018-07-23 13:52:15,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:15,380 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2018-07-23 13:52:15,380 INFO L472 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-07-23 13:52:15,380 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2018-07-23 13:52:15,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-07-23 13:52:15,381 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:15,381 INFO L357 BasicCegarLoop]: trace histogram [27, 1, 1, 1] [2018-07-23 13:52:15,381 INFO L414 AbstractCegarLoop]: === Iteration 28 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:15,381 INFO L82 PathProgramCache]: Analyzing trace with hash 1211302342, now seen corresponding path program 27 times [2018-07-23 13:52:15,381 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:15,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:15,845 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 0 proven. 378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:15,845 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:15,845 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2018-07-23 13:52:15,845 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:15,846 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 13:52:15,846 INFO L185 omatonBuilderFactory]: Interpolants [2505#true, 2506#false, 2507#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 2508#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 2509#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 2510#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 2511#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 2512#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 2513#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 2514#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 2515#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 2516#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 2517#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 2518#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 2519#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 2520#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 2521#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 2522#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 2523#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 2524#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 2525#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 2526#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 2527#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 2528#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 2529#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 2530#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 2531#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 2532#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 2533#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 2534#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:52:15,846 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 0 proven. 378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:15,847 INFO L450 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-07-23 13:52:15,847 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-07-23 13:52:15,848 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=435, Invalid=435, Unknown=0, NotChecked=0, Total=870 [2018-07-23 13:52:15,848 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand 30 states. [2018-07-23 13:52:15,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:15,881 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2018-07-23 13:52:15,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-07-23 13:52:15,882 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 30 [2018-07-23 13:52:15,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:15,882 INFO L225 Difference]: With dead ends: 34 [2018-07-23 13:52:15,882 INFO L226 Difference]: Without dead ends: 32 [2018-07-23 13:52:15,883 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=435, Invalid=435, Unknown=0, NotChecked=0, Total=870 [2018-07-23 13:52:15,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-07-23 13:52:15,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-07-23 13:52:15,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-07-23 13:52:15,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2018-07-23 13:52:15,895 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 30 [2018-07-23 13:52:15,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:15,896 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2018-07-23 13:52:15,896 INFO L472 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-07-23 13:52:15,896 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2018-07-23 13:52:15,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-07-23 13:52:15,899 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:15,901 INFO L357 BasicCegarLoop]: trace histogram [28, 1, 1, 1] [2018-07-23 13:52:15,901 INFO L414 AbstractCegarLoop]: === Iteration 29 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:15,902 INFO L82 PathProgramCache]: Analyzing trace with hash -1104336928, now seen corresponding path program 28 times [2018-07-23 13:52:15,902 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:15,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:16,242 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:16,242 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:16,242 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2018-07-23 13:52:16,242 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:16,243 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 13:52:16,243 INFO L185 omatonBuilderFactory]: Interpolants [2688#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 2689#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 2690#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 2691#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 2692#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 2693#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 2694#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 2695#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 2696#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 2697#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 2667#true, 2668#false, 2669#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 2670#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 2671#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 2672#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 2673#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 2674#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 2675#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 2676#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 2677#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 2678#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 2679#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 2680#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 2681#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 2682#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 2683#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 2684#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 2685#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 2686#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 2687#(and (<= (select main_a main_x) 18) (not (= main_x main_y)))] [2018-07-23 13:52:16,243 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:16,244 INFO L450 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-07-23 13:52:16,244 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-07-23 13:52:16,245 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=465, Invalid=465, Unknown=0, NotChecked=0, Total=930 [2018-07-23 13:52:16,245 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand 31 states. [2018-07-23 13:52:16,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:16,267 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2018-07-23 13:52:16,267 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-07-23 13:52:16,267 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 31 [2018-07-23 13:52:16,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:16,268 INFO L225 Difference]: With dead ends: 35 [2018-07-23 13:52:16,268 INFO L226 Difference]: Without dead ends: 33 [2018-07-23 13:52:16,269 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=465, Invalid=465, Unknown=0, NotChecked=0, Total=930 [2018-07-23 13:52:16,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-07-23 13:52:16,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-07-23 13:52:16,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-07-23 13:52:16,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 33 transitions. [2018-07-23 13:52:16,274 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 33 transitions. Word has length 31 [2018-07-23 13:52:16,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:16,274 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 33 transitions. [2018-07-23 13:52:16,274 INFO L472 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-07-23 13:52:16,274 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 33 transitions. [2018-07-23 13:52:16,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-07-23 13:52:16,275 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:16,275 INFO L357 BasicCegarLoop]: trace histogram [29, 1, 1, 1] [2018-07-23 13:52:16,275 INFO L414 AbstractCegarLoop]: === Iteration 30 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:16,275 INFO L82 PathProgramCache]: Analyzing trace with hash 125289734, now seen corresponding path program 29 times [2018-07-23 13:52:16,275 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:16,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:16,620 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:16,620 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:16,620 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2018-07-23 13:52:16,621 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:16,621 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 13:52:16,621 INFO L185 omatonBuilderFactory]: Interpolants [2834#true, 2835#false, 2836#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 2837#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 2838#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 2839#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 2840#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 2841#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 2842#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 2843#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 2844#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 2845#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 2846#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 2847#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 2848#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 2849#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 2850#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 2851#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 2852#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 2853#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 2854#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 2855#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 2856#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 2857#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 2858#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 2859#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 2860#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 2861#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 2862#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 2863#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 2864#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 2865#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:52:16,622 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:16,622 INFO L450 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-07-23 13:52:16,622 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-07-23 13:52:16,623 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2018-07-23 13:52:16,623 INFO L87 Difference]: Start difference. First operand 33 states and 33 transitions. Second operand 32 states. [2018-07-23 13:52:16,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:16,654 INFO L93 Difference]: Finished difference Result 36 states and 36 transitions. [2018-07-23 13:52:16,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-07-23 13:52:16,655 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 32 [2018-07-23 13:52:16,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:16,655 INFO L225 Difference]: With dead ends: 36 [2018-07-23 13:52:16,655 INFO L226 Difference]: Without dead ends: 34 [2018-07-23 13:52:16,657 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2018-07-23 13:52:16,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-07-23 13:52:16,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-07-23 13:52:16,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-07-23 13:52:16,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2018-07-23 13:52:16,663 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 32 [2018-07-23 13:52:16,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:16,663 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2018-07-23 13:52:16,663 INFO L472 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-07-23 13:52:16,664 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2018-07-23 13:52:16,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-07-23 13:52:16,664 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:16,664 INFO L357 BasicCegarLoop]: trace histogram [30, 1, 1, 1] [2018-07-23 13:52:16,664 INFO L414 AbstractCegarLoop]: === Iteration 31 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:16,665 INFO L82 PathProgramCache]: Analyzing trace with hash -410989408, now seen corresponding path program 30 times [2018-07-23 13:52:16,665 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:16,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:17,033 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:17,033 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:17,034 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2018-07-23 13:52:17,034 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:17,034 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 13:52:17,034 INFO L185 omatonBuilderFactory]: Interpolants [3008#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 3009#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 3010#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 3011#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 3012#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 3013#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 3014#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 3015#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 3016#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 3017#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 3018#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 3019#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 3020#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 3021#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 3022#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 3023#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 3024#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 3025#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 3026#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 3027#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 3028#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 3029#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 3030#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 3031#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 3032#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 3033#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 3034#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 3035#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 3036#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 3037#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 3038#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 3006#true, 3007#false] [2018-07-23 13:52:17,035 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:17,035 INFO L450 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-07-23 13:52:17,036 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-07-23 13:52:17,036 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2018-07-23 13:52:17,037 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand 33 states. [2018-07-23 13:52:17,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:17,066 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2018-07-23 13:52:17,067 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-07-23 13:52:17,067 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 33 [2018-07-23 13:52:17,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:17,067 INFO L225 Difference]: With dead ends: 37 [2018-07-23 13:52:17,068 INFO L226 Difference]: Without dead ends: 35 [2018-07-23 13:52:17,068 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2018-07-23 13:52:17,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-07-23 13:52:17,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-07-23 13:52:17,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-07-23 13:52:17,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2018-07-23 13:52:17,073 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 33 [2018-07-23 13:52:17,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:17,073 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2018-07-23 13:52:17,073 INFO L472 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-07-23 13:52:17,073 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2018-07-23 13:52:17,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-07-23 13:52:17,074 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:17,074 INFO L357 BasicCegarLoop]: trace histogram [31, 1, 1, 1] [2018-07-23 13:52:17,074 INFO L414 AbstractCegarLoop]: === Iteration 32 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:17,074 INFO L82 PathProgramCache]: Analyzing trace with hash 144226374, now seen corresponding path program 31 times [2018-07-23 13:52:17,075 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:17,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:17,437 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 0 proven. 496 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:17,438 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:17,438 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2018-07-23 13:52:17,438 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:17,438 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 13:52:17,439 INFO L185 omatonBuilderFactory]: Interpolants [3200#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 3201#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 3202#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 3203#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 3204#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 3205#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 3206#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 3207#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 3208#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 3209#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 3210#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 3211#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 3212#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 3213#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 3214#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 3215#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 3216#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 3183#true, 3184#false, 3185#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 3186#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 3187#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 3188#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 3189#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 3190#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 3191#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 3192#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 3193#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 3194#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 3195#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 3196#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 3197#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 3198#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 3199#(and (<= (select main_a main_x) 14) (not (= main_x main_y)))] [2018-07-23 13:52:17,439 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 0 proven. 496 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:17,440 INFO L450 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-07-23 13:52:17,440 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-07-23 13:52:17,441 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=561, Invalid=561, Unknown=0, NotChecked=0, Total=1122 [2018-07-23 13:52:17,441 INFO L87 Difference]: Start difference. First operand 35 states and 35 transitions. Second operand 34 states. [2018-07-23 13:52:17,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:17,465 INFO L93 Difference]: Finished difference Result 38 states and 38 transitions. [2018-07-23 13:52:17,465 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-07-23 13:52:17,465 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 34 [2018-07-23 13:52:17,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:17,466 INFO L225 Difference]: With dead ends: 38 [2018-07-23 13:52:17,466 INFO L226 Difference]: Without dead ends: 36 [2018-07-23 13:52:17,467 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=561, Invalid=561, Unknown=0, NotChecked=0, Total=1122 [2018-07-23 13:52:17,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-07-23 13:52:17,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-07-23 13:52:17,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-07-23 13:52:17,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2018-07-23 13:52:17,472 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 34 [2018-07-23 13:52:17,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:17,472 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2018-07-23 13:52:17,472 INFO L472 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-07-23 13:52:17,472 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2018-07-23 13:52:17,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-07-23 13:52:17,473 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:17,473 INFO L357 BasicCegarLoop]: trace histogram [32, 1, 1, 1] [2018-07-23 13:52:17,473 INFO L414 AbstractCegarLoop]: === Iteration 33 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:17,473 INFO L82 PathProgramCache]: Analyzing trace with hash 176046432, now seen corresponding path program 32 times [2018-07-23 13:52:17,473 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:17,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:17,851 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 528 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:17,851 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:17,852 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2018-07-23 13:52:17,852 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:17,852 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 13:52:17,852 INFO L185 omatonBuilderFactory]: Interpolants [3392#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 3393#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 3394#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 3395#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 3396#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 3397#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 3398#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 3399#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 3365#true, 3366#false, 3367#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 3368#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 3369#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 3370#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 3371#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 3372#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 3373#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 3374#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 3375#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 3376#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 3377#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 3378#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 3379#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 3380#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 3381#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 3382#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 3383#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 3384#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 3385#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 3386#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 3387#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 3388#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 3389#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 3390#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 3391#(and (<= (select main_a main_x) 24) (not (= main_x main_y)))] [2018-07-23 13:52:17,853 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 528 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:17,853 INFO L450 AbstractCegarLoop]: Interpolant automaton has 35 states [2018-07-23 13:52:17,854 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2018-07-23 13:52:17,854 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=595, Invalid=595, Unknown=0, NotChecked=0, Total=1190 [2018-07-23 13:52:17,855 INFO L87 Difference]: Start difference. First operand 36 states and 36 transitions. Second operand 35 states. [2018-07-23 13:52:17,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:17,877 INFO L93 Difference]: Finished difference Result 39 states and 39 transitions. [2018-07-23 13:52:17,877 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-07-23 13:52:17,877 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 35 [2018-07-23 13:52:17,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:17,877 INFO L225 Difference]: With dead ends: 39 [2018-07-23 13:52:17,878 INFO L226 Difference]: Without dead ends: 37 [2018-07-23 13:52:17,879 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=595, Invalid=595, Unknown=0, NotChecked=0, Total=1190 [2018-07-23 13:52:17,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-07-23 13:52:17,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-07-23 13:52:17,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-07-23 13:52:17,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 37 transitions. [2018-07-23 13:52:17,883 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 37 transitions. Word has length 35 [2018-07-23 13:52:17,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:17,884 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 37 transitions. [2018-07-23 13:52:17,884 INFO L472 AbstractCegarLoop]: Interpolant automaton has 35 states. [2018-07-23 13:52:17,884 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2018-07-23 13:52:17,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-07-23 13:52:17,884 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:17,885 INFO L357 BasicCegarLoop]: trace histogram [33, 1, 1, 1] [2018-07-23 13:52:17,885 INFO L414 AbstractCegarLoop]: === Iteration 34 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:17,885 INFO L82 PathProgramCache]: Analyzing trace with hash 1162468230, now seen corresponding path program 33 times [2018-07-23 13:52:17,885 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:17,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:18,293 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 0 proven. 561 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:18,294 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:18,294 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2018-07-23 13:52:18,294 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:18,295 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 13:52:18,295 INFO L185 omatonBuilderFactory]: Interpolants [3584#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 3585#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 3586#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 3587#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 3552#true, 3553#false, 3554#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 3555#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 3556#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 3557#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 3558#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 3559#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 3560#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 3561#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 3562#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 3563#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 3564#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 3565#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 3566#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 3567#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 3568#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 3569#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 3570#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 3571#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 3572#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 3573#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 3574#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 3575#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 3576#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 3577#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 3578#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 3579#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 3580#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 3581#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 3582#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 3583#(and (<= (select main_a main_x) 29) (not (= main_x main_y)))] [2018-07-23 13:52:18,296 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 0 proven. 561 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:18,296 INFO L450 AbstractCegarLoop]: Interpolant automaton has 36 states [2018-07-23 13:52:18,297 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2018-07-23 13:52:18,297 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=630, Invalid=630, Unknown=0, NotChecked=0, Total=1260 [2018-07-23 13:52:18,298 INFO L87 Difference]: Start difference. First operand 37 states and 37 transitions. Second operand 36 states. [2018-07-23 13:52:18,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:18,323 INFO L93 Difference]: Finished difference Result 40 states and 40 transitions. [2018-07-23 13:52:18,323 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-07-23 13:52:18,323 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 36 [2018-07-23 13:52:18,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:18,324 INFO L225 Difference]: With dead ends: 40 [2018-07-23 13:52:18,324 INFO L226 Difference]: Without dead ends: 38 [2018-07-23 13:52:18,325 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=630, Invalid=630, Unknown=0, NotChecked=0, Total=1260 [2018-07-23 13:52:18,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-07-23 13:52:18,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-07-23 13:52:18,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-07-23 13:52:18,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 38 transitions. [2018-07-23 13:52:18,331 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 38 transitions. Word has length 36 [2018-07-23 13:52:18,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:18,331 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 38 transitions. [2018-07-23 13:52:18,331 INFO L472 AbstractCegarLoop]: Interpolant automaton has 36 states. [2018-07-23 13:52:18,331 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 38 transitions. [2018-07-23 13:52:18,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-07-23 13:52:18,332 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:18,332 INFO L357 BasicCegarLoop]: trace histogram [34, 1, 1, 1] [2018-07-23 13:52:18,332 INFO L414 AbstractCegarLoop]: === Iteration 35 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:18,333 INFO L82 PathProgramCache]: Analyzing trace with hash 1676772896, now seen corresponding path program 34 times [2018-07-23 13:52:18,333 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:18,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:18,810 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 0 proven. 595 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:18,811 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:18,811 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2018-07-23 13:52:18,811 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:18,812 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 13:52:18,813 INFO L185 omatonBuilderFactory]: Interpolants [3776#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 3777#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 3778#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 3779#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 3780#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 3744#true, 3745#false, 3746#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 3747#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 3748#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 3749#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 3750#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 3751#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 3752#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 3753#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 3754#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 3755#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 3756#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 3757#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 3758#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 3759#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 3760#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 3761#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 3762#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 3763#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 3764#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 3765#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 3766#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 3767#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 3768#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 3769#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 3770#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 3771#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 3772#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 3773#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 3774#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 3775#(and (<= (select main_a main_x) 29) (not (= main_x main_y)))] [2018-07-23 13:52:18,814 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 0 proven. 595 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:18,814 INFO L450 AbstractCegarLoop]: Interpolant automaton has 37 states [2018-07-23 13:52:18,815 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2018-07-23 13:52:18,815 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=666, Invalid=666, Unknown=0, NotChecked=0, Total=1332 [2018-07-23 13:52:18,816 INFO L87 Difference]: Start difference. First operand 38 states and 38 transitions. Second operand 37 states. [2018-07-23 13:52:18,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:18,881 INFO L93 Difference]: Finished difference Result 41 states and 41 transitions. [2018-07-23 13:52:18,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-07-23 13:52:18,881 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 37 [2018-07-23 13:52:18,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:18,882 INFO L225 Difference]: With dead ends: 41 [2018-07-23 13:52:18,882 INFO L226 Difference]: Without dead ends: 39 [2018-07-23 13:52:18,883 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=666, Invalid=666, Unknown=0, NotChecked=0, Total=1332 [2018-07-23 13:52:18,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-07-23 13:52:18,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-07-23 13:52:18,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-07-23 13:52:18,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 39 transitions. [2018-07-23 13:52:18,893 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 39 transitions. Word has length 37 [2018-07-23 13:52:18,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:18,894 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 39 transitions. [2018-07-23 13:52:18,894 INFO L472 AbstractCegarLoop]: Interpolant automaton has 37 states. [2018-07-23 13:52:18,894 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 39 transitions. [2018-07-23 13:52:18,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-07-23 13:52:18,894 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:18,895 INFO L357 BasicCegarLoop]: trace histogram [35, 1, 1, 1] [2018-07-23 13:52:18,895 INFO L414 AbstractCegarLoop]: === Iteration 36 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:18,895 INFO L82 PathProgramCache]: Analyzing trace with hash 440348358, now seen corresponding path program 35 times [2018-07-23 13:52:18,900 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:18,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:19,315 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 630 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:19,316 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:19,316 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [37] total 37 [2018-07-23 13:52:19,316 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:19,319 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 13:52:19,319 INFO L185 omatonBuilderFactory]: Interpolants [3968#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 3969#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 3970#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 3971#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 3972#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 3973#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 3974#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 3975#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 3976#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 3977#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 3978#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 3941#true, 3942#false, 3943#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 3944#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 3945#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 3946#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 3947#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 3948#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 3949#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 3950#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 3951#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 3952#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 3953#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 3954#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 3955#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 3956#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 3957#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 3958#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 3959#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 3960#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 3961#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 3962#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 3963#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 3964#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 3965#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 3966#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 3967#(and (<= (select main_a main_x) 24) (not (= main_x main_y)))] [2018-07-23 13:52:19,320 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 630 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:19,320 INFO L450 AbstractCegarLoop]: Interpolant automaton has 38 states [2018-07-23 13:52:19,320 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2018-07-23 13:52:19,321 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=703, Invalid=703, Unknown=0, NotChecked=0, Total=1406 [2018-07-23 13:52:19,321 INFO L87 Difference]: Start difference. First operand 39 states and 39 transitions. Second operand 38 states. [2018-07-23 13:52:19,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:19,349 INFO L93 Difference]: Finished difference Result 42 states and 42 transitions. [2018-07-23 13:52:19,349 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-07-23 13:52:19,349 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 38 [2018-07-23 13:52:19,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:19,350 INFO L225 Difference]: With dead ends: 42 [2018-07-23 13:52:19,350 INFO L226 Difference]: Without dead ends: 40 [2018-07-23 13:52:19,351 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=703, Invalid=703, Unknown=0, NotChecked=0, Total=1406 [2018-07-23 13:52:19,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-07-23 13:52:19,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2018-07-23 13:52:19,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-07-23 13:52:19,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 40 transitions. [2018-07-23 13:52:19,358 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 40 transitions. Word has length 38 [2018-07-23 13:52:19,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:19,358 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 40 transitions. [2018-07-23 13:52:19,358 INFO L472 AbstractCegarLoop]: Interpolant automaton has 38 states. [2018-07-23 13:52:19,358 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 40 transitions. [2018-07-23 13:52:19,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-07-23 13:52:19,359 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:19,359 INFO L357 BasicCegarLoop]: trace histogram [36, 1, 1, 1] [2018-07-23 13:52:19,359 INFO L414 AbstractCegarLoop]: === Iteration 37 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:19,359 INFO L82 PathProgramCache]: Analyzing trace with hash 765893344, now seen corresponding path program 36 times [2018-07-23 13:52:19,359 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:19,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:19,774 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 0 proven. 666 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:19,774 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:19,775 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2018-07-23 13:52:19,775 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:19,775 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 13:52:19,776 INFO L185 omatonBuilderFactory]: Interpolants [4160#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 4161#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 4162#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 4163#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 4164#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 4165#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 4166#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 4167#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 4168#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 4169#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 4170#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 4171#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 4172#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 4173#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 4174#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 4175#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 4176#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 4177#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 4178#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 4179#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 4180#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 4181#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 4143#true, 4144#false, 4145#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 4146#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 4147#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 4148#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 4149#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 4150#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 4151#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 4152#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 4153#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 4154#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 4155#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 4156#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 4157#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 4158#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 4159#(and (<= (select main_a main_x) 14) (not (= main_x main_y)))] [2018-07-23 13:52:19,776 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 0 proven. 666 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:19,776 INFO L450 AbstractCegarLoop]: Interpolant automaton has 39 states [2018-07-23 13:52:19,777 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2018-07-23 13:52:19,777 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=741, Invalid=741, Unknown=0, NotChecked=0, Total=1482 [2018-07-23 13:52:19,778 INFO L87 Difference]: Start difference. First operand 40 states and 40 transitions. Second operand 39 states. [2018-07-23 13:52:19,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:19,807 INFO L93 Difference]: Finished difference Result 43 states and 43 transitions. [2018-07-23 13:52:19,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-07-23 13:52:19,807 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 39 [2018-07-23 13:52:19,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:19,808 INFO L225 Difference]: With dead ends: 43 [2018-07-23 13:52:19,808 INFO L226 Difference]: Without dead ends: 41 [2018-07-23 13:52:19,809 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=741, Invalid=741, Unknown=0, NotChecked=0, Total=1482 [2018-07-23 13:52:19,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-07-23 13:52:19,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-07-23 13:52:19,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-07-23 13:52:19,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 41 transitions. [2018-07-23 13:52:19,813 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 41 transitions. Word has length 39 [2018-07-23 13:52:19,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:19,814 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 41 transitions. [2018-07-23 13:52:19,814 INFO L472 AbstractCegarLoop]: Interpolant automaton has 39 states. [2018-07-23 13:52:19,814 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 41 transitions. [2018-07-23 13:52:19,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-07-23 13:52:19,814 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:19,814 INFO L357 BasicCegarLoop]: trace histogram [37, 1, 1, 1] [2018-07-23 13:52:19,815 INFO L414 AbstractCegarLoop]: === Iteration 38 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:19,815 INFO L82 PathProgramCache]: Analyzing trace with hash -2027113978, now seen corresponding path program 37 times [2018-07-23 13:52:19,815 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:19,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:20,256 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 0 proven. 703 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:20,256 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:20,257 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [39] total 39 [2018-07-23 13:52:20,257 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:20,257 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 13:52:20,257 INFO L185 omatonBuilderFactory]: Interpolants [4352#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 4353#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 4354#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 4355#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 4356#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 4357#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 4358#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 4359#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 4360#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 4361#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 4362#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 4363#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 4364#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 4365#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 4366#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 4367#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 4368#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 4369#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 4370#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 4371#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 4372#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 4373#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 4374#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 4375#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 4376#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 4377#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 4378#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 4379#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 4380#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 4381#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 4382#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 4383#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 4384#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 4385#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 4386#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 4387#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 4388#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 4389#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 4350#true, 4351#false] [2018-07-23 13:52:20,258 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 0 proven. 703 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:20,258 INFO L450 AbstractCegarLoop]: Interpolant automaton has 40 states [2018-07-23 13:52:20,258 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2018-07-23 13:52:20,259 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=780, Invalid=780, Unknown=0, NotChecked=0, Total=1560 [2018-07-23 13:52:20,260 INFO L87 Difference]: Start difference. First operand 41 states and 41 transitions. Second operand 40 states. [2018-07-23 13:52:20,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:20,294 INFO L93 Difference]: Finished difference Result 44 states and 44 transitions. [2018-07-23 13:52:20,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2018-07-23 13:52:20,294 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 40 [2018-07-23 13:52:20,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:20,294 INFO L225 Difference]: With dead ends: 44 [2018-07-23 13:52:20,295 INFO L226 Difference]: Without dead ends: 42 [2018-07-23 13:52:20,296 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=780, Invalid=780, Unknown=0, NotChecked=0, Total=1560 [2018-07-23 13:52:20,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-07-23 13:52:20,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2018-07-23 13:52:20,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-07-23 13:52:20,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 42 transitions. [2018-07-23 13:52:20,301 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 42 transitions. Word has length 40 [2018-07-23 13:52:20,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:20,301 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 42 transitions. [2018-07-23 13:52:20,301 INFO L472 AbstractCegarLoop]: Interpolant automaton has 40 states. [2018-07-23 13:52:20,303 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 42 transitions. [2018-07-23 13:52:20,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-07-23 13:52:20,303 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:20,303 INFO L357 BasicCegarLoop]: trace histogram [38, 1, 1, 1] [2018-07-23 13:52:20,304 INFO L414 AbstractCegarLoop]: === Iteration 39 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:20,304 INFO L82 PathProgramCache]: Analyzing trace with hash 1583972256, now seen corresponding path program 38 times [2018-07-23 13:52:20,304 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:20,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:20,751 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 741 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:20,751 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:20,751 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [40] total 40 [2018-07-23 13:52:20,751 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:20,752 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 13:52:20,752 INFO L185 omatonBuilderFactory]: Interpolants [4562#true, 4563#false, 4564#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 4565#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 4566#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 4567#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 4568#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 4569#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 4570#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 4571#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 4572#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 4573#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 4574#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 4575#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 4576#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 4577#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 4578#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 4579#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 4580#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 4581#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 4582#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 4583#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 4584#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 4585#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 4586#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 4587#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 4588#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 4589#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 4590#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 4591#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 4592#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 4593#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 4594#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 4595#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 4596#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 4597#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 4598#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 4599#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 4600#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 4601#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 4602#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:52:20,752 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 741 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:20,753 INFO L450 AbstractCegarLoop]: Interpolant automaton has 41 states [2018-07-23 13:52:20,753 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2018-07-23 13:52:20,754 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=820, Invalid=820, Unknown=0, NotChecked=0, Total=1640 [2018-07-23 13:52:20,754 INFO L87 Difference]: Start difference. First operand 42 states and 42 transitions. Second operand 41 states. [2018-07-23 13:52:20,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:20,790 INFO L93 Difference]: Finished difference Result 45 states and 45 transitions. [2018-07-23 13:52:20,790 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-07-23 13:52:20,790 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 41 [2018-07-23 13:52:20,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:20,791 INFO L225 Difference]: With dead ends: 45 [2018-07-23 13:52:20,791 INFO L226 Difference]: Without dead ends: 43 [2018-07-23 13:52:20,792 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=820, Invalid=820, Unknown=0, NotChecked=0, Total=1640 [2018-07-23 13:52:20,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-07-23 13:52:20,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2018-07-23 13:52:20,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-07-23 13:52:20,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 43 transitions. [2018-07-23 13:52:20,796 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 43 transitions. Word has length 41 [2018-07-23 13:52:20,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:20,797 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 43 transitions. [2018-07-23 13:52:20,797 INFO L472 AbstractCegarLoop]: Interpolant automaton has 41 states. [2018-07-23 13:52:20,797 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 43 transitions. [2018-07-23 13:52:20,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-07-23 13:52:20,797 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:20,797 INFO L357 BasicCegarLoop]: trace histogram [39, 1, 1, 1] [2018-07-23 13:52:20,798 INFO L414 AbstractCegarLoop]: === Iteration 40 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:20,798 INFO L82 PathProgramCache]: Analyzing trace with hash 1858495814, now seen corresponding path program 39 times [2018-07-23 13:52:20,798 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:20,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:21,281 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 0 proven. 780 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:21,281 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:21,282 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [41] total 41 [2018-07-23 13:52:21,282 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:21,282 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 13:52:21,282 INFO L185 omatonBuilderFactory]: Interpolants [4800#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 4801#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 4802#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 4803#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 4804#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 4805#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 4806#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 4807#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 4808#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 4809#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 4810#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 4811#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 4812#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 4813#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 4814#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 4815#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 4816#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 4817#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 4818#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 4819#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 4820#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 4779#true, 4780#false, 4781#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 4782#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 4783#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 4784#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 4785#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 4786#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 4787#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 4788#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 4789#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 4790#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 4791#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 4792#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 4793#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 4794#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 4795#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 4796#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 4797#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 4798#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 4799#(and (<= (select main_a main_x) 18) (not (= main_x main_y)))] [2018-07-23 13:52:21,283 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 0 proven. 780 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:21,283 INFO L450 AbstractCegarLoop]: Interpolant automaton has 42 states [2018-07-23 13:52:21,284 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2018-07-23 13:52:21,284 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=861, Invalid=861, Unknown=0, NotChecked=0, Total=1722 [2018-07-23 13:52:21,285 INFO L87 Difference]: Start difference. First operand 43 states and 43 transitions. Second operand 42 states. [2018-07-23 13:52:21,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:21,315 INFO L93 Difference]: Finished difference Result 46 states and 46 transitions. [2018-07-23 13:52:21,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2018-07-23 13:52:21,315 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 42 [2018-07-23 13:52:21,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:21,316 INFO L225 Difference]: With dead ends: 46 [2018-07-23 13:52:21,316 INFO L226 Difference]: Without dead ends: 44 [2018-07-23 13:52:21,317 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=861, Invalid=861, Unknown=0, NotChecked=0, Total=1722 [2018-07-23 13:52:21,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-07-23 13:52:21,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-07-23 13:52:21,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-07-23 13:52:21,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 44 transitions. [2018-07-23 13:52:21,321 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 44 transitions. Word has length 42 [2018-07-23 13:52:21,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:21,322 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 44 transitions. [2018-07-23 13:52:21,322 INFO L472 AbstractCegarLoop]: Interpolant automaton has 42 states. [2018-07-23 13:52:21,322 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 44 transitions. [2018-07-23 13:52:21,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-07-23 13:52:21,322 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:21,323 INFO L357 BasicCegarLoop]: trace histogram [40, 1, 1, 1] [2018-07-23 13:52:21,323 INFO L414 AbstractCegarLoop]: === Iteration 41 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:21,323 INFO L82 PathProgramCache]: Analyzing trace with hash 1778791520, now seen corresponding path program 40 times [2018-07-23 13:52:21,323 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:21,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:21,848 INFO L134 CoverageAnalysis]: Checked inductivity of 820 backedges. 0 proven. 820 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:21,849 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:21,849 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [42] total 42 [2018-07-23 13:52:21,849 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:21,849 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 13:52:21,850 INFO L185 omatonBuilderFactory]: Interpolants [5001#true, 5002#false, 5003#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 5004#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 5005#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 5006#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 5007#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 5008#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 5009#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 5010#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 5011#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 5012#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 5013#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 5014#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 5015#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 5016#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 5017#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 5018#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 5019#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 5020#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 5021#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 5022#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 5023#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 5024#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 5025#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 5026#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 5027#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 5028#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 5029#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 5030#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 5031#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 5032#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 5033#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 5034#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 5035#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 5036#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 5037#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 5038#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 5039#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 5040#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 5041#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 5042#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 5043#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:52:21,850 INFO L134 CoverageAnalysis]: Checked inductivity of 820 backedges. 0 proven. 820 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:21,851 INFO L450 AbstractCegarLoop]: Interpolant automaton has 43 states [2018-07-23 13:52:21,851 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2018-07-23 13:52:21,852 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=903, Invalid=903, Unknown=0, NotChecked=0, Total=1806 [2018-07-23 13:52:21,852 INFO L87 Difference]: Start difference. First operand 44 states and 44 transitions. Second operand 43 states. [2018-07-23 13:52:21,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:21,899 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2018-07-23 13:52:21,899 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2018-07-23 13:52:21,899 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 43 [2018-07-23 13:52:21,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:21,900 INFO L225 Difference]: With dead ends: 47 [2018-07-23 13:52:21,900 INFO L226 Difference]: Without dead ends: 45 [2018-07-23 13:52:21,901 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=903, Invalid=903, Unknown=0, NotChecked=0, Total=1806 [2018-07-23 13:52:21,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-07-23 13:52:21,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-07-23 13:52:21,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-07-23 13:52:21,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 45 transitions. [2018-07-23 13:52:21,906 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 45 transitions. Word has length 43 [2018-07-23 13:52:21,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:21,907 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 45 transitions. [2018-07-23 13:52:21,907 INFO L472 AbstractCegarLoop]: Interpolant automaton has 43 states. [2018-07-23 13:52:21,907 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 45 transitions. [2018-07-23 13:52:21,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-07-23 13:52:21,908 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:21,908 INFO L357 BasicCegarLoop]: trace histogram [41, 1, 1, 1] [2018-07-23 13:52:21,908 INFO L414 AbstractCegarLoop]: === Iteration 42 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:21,908 INFO L82 PathProgramCache]: Analyzing trace with hash -692041594, now seen corresponding path program 41 times [2018-07-23 13:52:21,909 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:21,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:22,485 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 861 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:22,486 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:22,486 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [43] total 43 [2018-07-23 13:52:22,486 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:22,486 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 13:52:22,487 INFO L185 omatonBuilderFactory]: Interpolants [5248#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 5249#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 5250#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 5251#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 5252#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 5253#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 5254#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 5255#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 5256#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 5257#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 5258#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 5259#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 5260#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 5261#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 5262#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 5263#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 5264#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 5265#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 5266#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 5267#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 5268#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 5269#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 5270#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 5271#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 5228#true, 5229#false, 5230#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 5231#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 5232#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 5233#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 5234#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 5235#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 5236#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 5237#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 5238#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 5239#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 5240#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 5241#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 5242#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 5243#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 5244#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 5245#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 5246#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 5247#(and (not (= main_x main_y)) (<= (select main_a main_x) 17))] [2018-07-23 13:52:22,487 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 861 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:22,487 INFO L450 AbstractCegarLoop]: Interpolant automaton has 44 states [2018-07-23 13:52:22,488 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2018-07-23 13:52:22,488 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=946, Invalid=946, Unknown=0, NotChecked=0, Total=1892 [2018-07-23 13:52:22,489 INFO L87 Difference]: Start difference. First operand 45 states and 45 transitions. Second operand 44 states. [2018-07-23 13:52:22,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:22,519 INFO L93 Difference]: Finished difference Result 48 states and 48 transitions. [2018-07-23 13:52:22,520 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-07-23 13:52:22,520 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 44 [2018-07-23 13:52:22,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:22,520 INFO L225 Difference]: With dead ends: 48 [2018-07-23 13:52:22,521 INFO L226 Difference]: Without dead ends: 46 [2018-07-23 13:52:22,522 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=946, Invalid=946, Unknown=0, NotChecked=0, Total=1892 [2018-07-23 13:52:22,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-07-23 13:52:22,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2018-07-23 13:52:22,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-07-23 13:52:22,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 46 transitions. [2018-07-23 13:52:22,526 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 46 transitions. Word has length 44 [2018-07-23 13:52:22,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:22,527 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 46 transitions. [2018-07-23 13:52:22,527 INFO L472 AbstractCegarLoop]: Interpolant automaton has 44 states. [2018-07-23 13:52:22,527 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 46 transitions. [2018-07-23 13:52:22,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-07-23 13:52:22,527 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:22,528 INFO L357 BasicCegarLoop]: trace histogram [42, 1, 1, 1] [2018-07-23 13:52:22,528 INFO L414 AbstractCegarLoop]: === Iteration 43 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:22,528 INFO L82 PathProgramCache]: Analyzing trace with hash 21543200, now seen corresponding path program 42 times [2018-07-23 13:52:22,528 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:22,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:23,002 INFO L134 CoverageAnalysis]: Checked inductivity of 903 backedges. 0 proven. 903 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:23,002 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:23,003 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [44] total 44 [2018-07-23 13:52:23,003 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:23,003 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 13:52:23,003 INFO L185 omatonBuilderFactory]: Interpolants [5504#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 5460#true, 5461#false, 5462#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 5463#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 5464#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 5465#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 5466#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 5467#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 5468#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 5469#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 5470#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 5471#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 5472#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 5473#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 5474#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 5475#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 5476#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 5477#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 5478#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 5479#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 5480#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 5481#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 5482#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 5483#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 5484#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 5485#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 5486#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 5487#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 5488#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 5489#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 5490#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 5491#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 5492#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 5493#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 5494#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 5495#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 5496#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 5497#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 5498#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 5499#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 5500#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 5501#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 5502#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 5503#(and (<= (select main_a main_x) 41) (not (= main_x main_y)))] [2018-07-23 13:52:23,004 INFO L134 CoverageAnalysis]: Checked inductivity of 903 backedges. 0 proven. 903 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:23,004 INFO L450 AbstractCegarLoop]: Interpolant automaton has 45 states [2018-07-23 13:52:23,005 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2018-07-23 13:52:23,005 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=990, Invalid=990, Unknown=0, NotChecked=0, Total=1980 [2018-07-23 13:52:23,006 INFO L87 Difference]: Start difference. First operand 46 states and 46 transitions. Second operand 45 states. [2018-07-23 13:52:23,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:23,033 INFO L93 Difference]: Finished difference Result 49 states and 49 transitions. [2018-07-23 13:52:23,033 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2018-07-23 13:52:23,033 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 45 [2018-07-23 13:52:23,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:23,034 INFO L225 Difference]: With dead ends: 49 [2018-07-23 13:52:23,034 INFO L226 Difference]: Without dead ends: 47 [2018-07-23 13:52:23,035 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=990, Invalid=990, Unknown=0, NotChecked=0, Total=1980 [2018-07-23 13:52:23,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-07-23 13:52:23,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2018-07-23 13:52:23,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-07-23 13:52:23,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 47 transitions. [2018-07-23 13:52:23,041 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 47 transitions. Word has length 45 [2018-07-23 13:52:23,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:23,042 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 47 transitions. [2018-07-23 13:52:23,042 INFO L472 AbstractCegarLoop]: Interpolant automaton has 45 states. [2018-07-23 13:52:23,042 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 47 transitions. [2018-07-23 13:52:23,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-07-23 13:52:23,046 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:23,046 INFO L357 BasicCegarLoop]: trace histogram [43, 1, 1, 1] [2018-07-23 13:52:23,046 INFO L414 AbstractCegarLoop]: === Iteration 44 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:23,046 INFO L82 PathProgramCache]: Analyzing trace with hash 667835334, now seen corresponding path program 43 times [2018-07-23 13:52:23,046 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:23,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:23,523 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 0 proven. 946 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:23,524 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:23,524 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [45] total 45 [2018-07-23 13:52:23,525 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:23,525 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 13:52:23,525 INFO L185 omatonBuilderFactory]: Interpolants [5697#true, 5698#false, 5699#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 5700#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 5701#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 5702#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 5703#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 5704#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 5705#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 5706#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 5707#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 5708#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 5709#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 5710#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 5711#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 5712#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 5713#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 5714#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 5715#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 5716#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 5717#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 5718#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 5719#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 5720#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 5721#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 5722#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 5723#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 5724#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 5725#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 5726#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 5727#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 5728#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 5729#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 5730#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 5731#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 5732#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 5733#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 5734#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 5735#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 5736#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 5737#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 5738#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 5739#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 5740#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 5741#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 5742#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:52:23,526 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 0 proven. 946 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:23,526 INFO L450 AbstractCegarLoop]: Interpolant automaton has 46 states [2018-07-23 13:52:23,526 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2018-07-23 13:52:23,527 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1035, Invalid=1035, Unknown=0, NotChecked=0, Total=2070 [2018-07-23 13:52:23,528 INFO L87 Difference]: Start difference. First operand 47 states and 47 transitions. Second operand 46 states. [2018-07-23 13:52:23,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:23,568 INFO L93 Difference]: Finished difference Result 50 states and 50 transitions. [2018-07-23 13:52:23,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2018-07-23 13:52:23,569 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 46 [2018-07-23 13:52:23,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:23,569 INFO L225 Difference]: With dead ends: 50 [2018-07-23 13:52:23,569 INFO L226 Difference]: Without dead ends: 48 [2018-07-23 13:52:23,571 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=1035, Invalid=1035, Unknown=0, NotChecked=0, Total=2070 [2018-07-23 13:52:23,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-07-23 13:52:23,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2018-07-23 13:52:23,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-07-23 13:52:23,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 48 transitions. [2018-07-23 13:52:23,576 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 48 transitions. Word has length 46 [2018-07-23 13:52:23,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:23,577 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 48 transitions. [2018-07-23 13:52:23,577 INFO L472 AbstractCegarLoop]: Interpolant automaton has 46 states. [2018-07-23 13:52:23,577 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 48 transitions. [2018-07-23 13:52:23,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-07-23 13:52:23,577 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:23,578 INFO L357 BasicCegarLoop]: trace histogram [44, 1, 1, 1] [2018-07-23 13:52:23,578 INFO L414 AbstractCegarLoop]: === Iteration 45 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:23,578 INFO L82 PathProgramCache]: Analyzing trace with hash -771944992, now seen corresponding path program 44 times [2018-07-23 13:52:23,578 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:23,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:24,077 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 990 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:24,078 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:24,078 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [46] total 46 [2018-07-23 13:52:24,078 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:24,078 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 13:52:24,079 INFO L185 omatonBuilderFactory]: Interpolants [5952#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 5953#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 5954#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 5955#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 5956#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 5957#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 5958#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 5959#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 5960#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 5961#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 5962#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 5963#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 5964#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 5965#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 5966#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 5967#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 5968#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 5969#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 5970#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 5971#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 5972#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 5973#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 5974#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 5975#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 5976#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 5977#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 5978#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 5979#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 5980#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 5981#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 5982#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 5983#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 5984#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 5985#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 5939#true, 5940#false, 5941#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 5942#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 5943#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 5944#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 5945#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 5946#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 5947#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 5948#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 5949#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 5950#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 5951#(and (not (= main_x main_y)) (<= (select main_a main_x) 10))] [2018-07-23 13:52:24,079 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 990 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:24,079 INFO L450 AbstractCegarLoop]: Interpolant automaton has 47 states [2018-07-23 13:52:24,080 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2018-07-23 13:52:24,080 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1081, Invalid=1081, Unknown=0, NotChecked=0, Total=2162 [2018-07-23 13:52:24,081 INFO L87 Difference]: Start difference. First operand 48 states and 48 transitions. Second operand 47 states. [2018-07-23 13:52:24,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:24,115 INFO L93 Difference]: Finished difference Result 51 states and 51 transitions. [2018-07-23 13:52:24,115 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2018-07-23 13:52:24,115 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 47 [2018-07-23 13:52:24,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:24,116 INFO L225 Difference]: With dead ends: 51 [2018-07-23 13:52:24,116 INFO L226 Difference]: Without dead ends: 49 [2018-07-23 13:52:24,117 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=1081, Invalid=1081, Unknown=0, NotChecked=0, Total=2162 [2018-07-23 13:52:24,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-07-23 13:52:24,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2018-07-23 13:52:24,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-07-23 13:52:24,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 49 transitions. [2018-07-23 13:52:24,121 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 49 transitions. Word has length 47 [2018-07-23 13:52:24,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:24,121 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 49 transitions. [2018-07-23 13:52:24,122 INFO L472 AbstractCegarLoop]: Interpolant automaton has 47 states. [2018-07-23 13:52:24,122 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 49 transitions. [2018-07-23 13:52:24,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-07-23 13:52:24,122 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:24,122 INFO L357 BasicCegarLoop]: trace histogram [45, 1, 1, 1] [2018-07-23 13:52:24,122 INFO L414 AbstractCegarLoop]: === Iteration 46 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:24,123 INFO L82 PathProgramCache]: Analyzing trace with hash 1839505158, now seen corresponding path program 45 times [2018-07-23 13:52:24,123 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:24,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:24,627 INFO L134 CoverageAnalysis]: Checked inductivity of 1035 backedges. 0 proven. 1035 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:24,627 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:24,627 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [47] total 47 [2018-07-23 13:52:24,628 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:24,628 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 13:52:24,628 INFO L185 omatonBuilderFactory]: Interpolants [6208#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 6209#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 6210#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 6211#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 6212#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 6213#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 6214#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 6215#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 6216#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 6217#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 6218#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 6219#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 6220#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 6221#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 6222#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 6223#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 6224#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 6225#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 6226#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 6227#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 6228#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 6229#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 6230#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 6231#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 6232#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 6233#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 6186#true, 6187#false, 6188#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 6189#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 6190#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 6191#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 6192#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 6193#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 6194#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 6195#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 6196#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 6197#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 6198#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 6199#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 6200#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 6201#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 6202#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 6203#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 6204#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 6205#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 6206#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 6207#(and (<= (select main_a main_x) 19) (not (= main_x main_y)))] [2018-07-23 13:52:24,628 INFO L134 CoverageAnalysis]: Checked inductivity of 1035 backedges. 0 proven. 1035 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:24,629 INFO L450 AbstractCegarLoop]: Interpolant automaton has 48 states [2018-07-23 13:52:24,629 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2018-07-23 13:52:24,630 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2018-07-23 13:52:24,630 INFO L87 Difference]: Start difference. First operand 49 states and 49 transitions. Second operand 48 states. [2018-07-23 13:52:24,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:24,660 INFO L93 Difference]: Finished difference Result 52 states and 52 transitions. [2018-07-23 13:52:24,660 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2018-07-23 13:52:24,660 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 48 [2018-07-23 13:52:24,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:24,661 INFO L225 Difference]: With dead ends: 52 [2018-07-23 13:52:24,661 INFO L226 Difference]: Without dead ends: 50 [2018-07-23 13:52:24,662 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2018-07-23 13:52:24,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-07-23 13:52:24,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-07-23 13:52:24,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-07-23 13:52:24,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 50 transitions. [2018-07-23 13:52:24,666 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 50 transitions. Word has length 48 [2018-07-23 13:52:24,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:24,667 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 50 transitions. [2018-07-23 13:52:24,667 INFO L472 AbstractCegarLoop]: Interpolant automaton has 48 states. [2018-07-23 13:52:24,667 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 50 transitions. [2018-07-23 13:52:24,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-07-23 13:52:24,667 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:24,668 INFO L357 BasicCegarLoop]: trace histogram [46, 1, 1, 1] [2018-07-23 13:52:24,668 INFO L414 AbstractCegarLoop]: === Iteration 47 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:24,668 INFO L82 PathProgramCache]: Analyzing trace with hash 1190081184, now seen corresponding path program 46 times [2018-07-23 13:52:24,668 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:24,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:25,227 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:25,227 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:25,227 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [48] total 48 [2018-07-23 13:52:25,228 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:25,228 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 13:52:25,228 INFO L185 omatonBuilderFactory]: Interpolants [6438#true, 6439#false, 6440#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 6441#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 6442#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 6443#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 6444#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 6445#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 6446#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 6447#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 6448#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 6449#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 6450#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 6451#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 6452#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 6453#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 6454#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 6455#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 6456#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 6457#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 6458#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 6459#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 6460#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 6461#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 6462#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 6463#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 6464#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 6465#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 6466#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 6467#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 6468#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 6469#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 6470#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 6471#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 6472#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 6473#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 6474#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 6475#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 6476#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 6477#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 6478#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 6479#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 6480#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 6481#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 6482#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 6483#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 6484#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 6485#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 6486#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:52:25,229 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:25,229 INFO L450 AbstractCegarLoop]: Interpolant automaton has 49 states [2018-07-23 13:52:25,230 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2018-07-23 13:52:25,230 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2018-07-23 13:52:25,230 INFO L87 Difference]: Start difference. First operand 50 states and 50 transitions. Second operand 49 states. [2018-07-23 13:52:25,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:25,262 INFO L93 Difference]: Finished difference Result 53 states and 53 transitions. [2018-07-23 13:52:25,262 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2018-07-23 13:52:25,262 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 49 [2018-07-23 13:52:25,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:25,263 INFO L225 Difference]: With dead ends: 53 [2018-07-23 13:52:25,263 INFO L226 Difference]: Without dead ends: 51 [2018-07-23 13:52:25,264 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2018-07-23 13:52:25,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-07-23 13:52:25,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-07-23 13:52:25,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-07-23 13:52:25,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 51 transitions. [2018-07-23 13:52:25,269 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 51 transitions. Word has length 49 [2018-07-23 13:52:25,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:25,270 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 51 transitions. [2018-07-23 13:52:25,270 INFO L472 AbstractCegarLoop]: Interpolant automaton has 49 states. [2018-07-23 13:52:25,270 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2018-07-23 13:52:25,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-07-23 13:52:25,270 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:25,271 INFO L357 BasicCegarLoop]: trace histogram [47, 1, 1, 1] [2018-07-23 13:52:25,271 INFO L414 AbstractCegarLoop]: === Iteration 48 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:25,271 INFO L82 PathProgramCache]: Analyzing trace with hash -1762192826, now seen corresponding path program 47 times [2018-07-23 13:52:25,271 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:25,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:25,783 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 0 proven. 1128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:25,783 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:25,783 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [49] total 49 [2018-07-23 13:52:25,784 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:25,784 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 13:52:25,784 INFO L185 omatonBuilderFactory]: Interpolants [6695#true, 6696#false, 6697#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 6698#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 6699#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 6700#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 6701#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 6702#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 6703#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 6704#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 6705#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 6706#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 6707#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 6708#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 6709#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 6710#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 6711#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 6712#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 6713#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 6714#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 6715#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 6716#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 6717#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 6718#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 6719#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 6720#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 6721#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 6722#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 6723#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 6724#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 6725#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 6726#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 6727#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 6728#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 6729#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 6730#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 6731#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 6732#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 6733#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 6734#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 6735#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 6736#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 6737#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 6738#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 6739#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 6740#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 6741#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 6742#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 6743#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 6744#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:52:25,785 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 0 proven. 1128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:25,785 INFO L450 AbstractCegarLoop]: Interpolant automaton has 50 states [2018-07-23 13:52:25,786 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2018-07-23 13:52:25,786 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1225, Invalid=1225, Unknown=0, NotChecked=0, Total=2450 [2018-07-23 13:52:25,787 INFO L87 Difference]: Start difference. First operand 51 states and 51 transitions. Second operand 50 states. [2018-07-23 13:52:25,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:25,820 INFO L93 Difference]: Finished difference Result 54 states and 54 transitions. [2018-07-23 13:52:25,820 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2018-07-23 13:52:25,821 INFO L78 Accepts]: Start accepts. Automaton has 50 states. Word has length 50 [2018-07-23 13:52:25,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:25,821 INFO L225 Difference]: With dead ends: 54 [2018-07-23 13:52:25,821 INFO L226 Difference]: Without dead ends: 52 [2018-07-23 13:52:25,822 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=1225, Invalid=1225, Unknown=0, NotChecked=0, Total=2450 [2018-07-23 13:52:25,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-07-23 13:52:25,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2018-07-23 13:52:25,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-07-23 13:52:25,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 52 transitions. [2018-07-23 13:52:25,831 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 52 transitions. Word has length 50 [2018-07-23 13:52:25,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:25,831 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 52 transitions. [2018-07-23 13:52:25,831 INFO L472 AbstractCegarLoop]: Interpolant automaton has 50 states. [2018-07-23 13:52:25,832 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 52 transitions. [2018-07-23 13:52:25,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-07-23 13:52:25,832 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:25,832 INFO L357 BasicCegarLoop]: trace histogram [48, 1, 1, 1] [2018-07-23 13:52:25,834 INFO L414 AbstractCegarLoop]: === Iteration 49 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:25,834 INFO L82 PathProgramCache]: Analyzing trace with hash 1206593376, now seen corresponding path program 48 times [2018-07-23 13:52:25,834 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:25,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:26,473 INFO L134 CoverageAnalysis]: Checked inductivity of 1176 backedges. 0 proven. 1176 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:26,473 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:26,473 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [50] total 50 [2018-07-23 13:52:26,474 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:26,474 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 13:52:26,474 INFO L185 omatonBuilderFactory]: Interpolants [6957#true, 6958#false, 6959#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 6960#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 6961#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 6962#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 6963#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 6964#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 6965#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 6966#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 6967#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 6968#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 6969#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 6970#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 6971#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 6972#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 6973#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 6974#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 6975#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 6976#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 6977#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 6978#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 6979#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 6980#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 6981#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 6982#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 6983#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 6984#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 6985#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 6986#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 6987#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 6988#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 6989#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 6990#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 6991#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 6992#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 6993#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 6994#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 6995#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 6996#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 6997#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 6998#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 6999#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 7000#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 7001#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 7002#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 7003#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 7004#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 7005#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 7006#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 7007#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:52:26,475 INFO L134 CoverageAnalysis]: Checked inductivity of 1176 backedges. 0 proven. 1176 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:26,475 INFO L450 AbstractCegarLoop]: Interpolant automaton has 51 states [2018-07-23 13:52:26,475 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2018-07-23 13:52:26,476 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1275, Invalid=1275, Unknown=0, NotChecked=0, Total=2550 [2018-07-23 13:52:26,476 INFO L87 Difference]: Start difference. First operand 52 states and 52 transitions. Second operand 51 states. [2018-07-23 13:52:26,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:26,518 INFO L93 Difference]: Finished difference Result 55 states and 55 transitions. [2018-07-23 13:52:26,518 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2018-07-23 13:52:26,518 INFO L78 Accepts]: Start accepts. Automaton has 51 states. Word has length 51 [2018-07-23 13:52:26,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:26,519 INFO L225 Difference]: With dead ends: 55 [2018-07-23 13:52:26,519 INFO L226 Difference]: Without dead ends: 53 [2018-07-23 13:52:26,520 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=1275, Invalid=1275, Unknown=0, NotChecked=0, Total=2550 [2018-07-23 13:52:26,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-07-23 13:52:26,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2018-07-23 13:52:26,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-07-23 13:52:26,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 53 transitions. [2018-07-23 13:52:26,526 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 53 transitions. Word has length 51 [2018-07-23 13:52:26,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:26,527 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 53 transitions. [2018-07-23 13:52:26,527 INFO L472 AbstractCegarLoop]: Interpolant automaton has 51 states. [2018-07-23 13:52:26,527 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 53 transitions. [2018-07-23 13:52:26,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-07-23 13:52:26,527 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:26,528 INFO L357 BasicCegarLoop]: trace histogram [49, 1, 1, 1] [2018-07-23 13:52:26,528 INFO L414 AbstractCegarLoop]: === Iteration 50 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:26,528 INFO L82 PathProgramCache]: Analyzing trace with hash -1250314874, now seen corresponding path program 49 times [2018-07-23 13:52:26,528 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:26,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:27,091 INFO L134 CoverageAnalysis]: Checked inductivity of 1225 backedges. 0 proven. 1225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:27,092 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:27,092 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [51] total 51 [2018-07-23 13:52:27,092 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:27,092 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 13:52:27,093 INFO L185 omatonBuilderFactory]: Interpolants [7224#true, 7225#false, 7226#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 7227#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 7228#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 7229#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 7230#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 7231#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 7232#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 7233#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 7234#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 7235#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 7236#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 7237#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 7238#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 7239#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 7240#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 7241#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 7242#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 7243#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 7244#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 7245#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 7246#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 7247#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 7248#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 7249#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 7250#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 7251#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 7252#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 7253#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 7254#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 7255#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 7256#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 7257#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 7258#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 7259#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 7260#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 7261#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 7262#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 7263#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 7264#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 7265#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 7266#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 7267#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 7268#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 7269#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 7270#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 7271#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 7272#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 7273#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 7274#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 7275#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:52:27,093 INFO L134 CoverageAnalysis]: Checked inductivity of 1225 backedges. 0 proven. 1225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:27,093 INFO L450 AbstractCegarLoop]: Interpolant automaton has 52 states [2018-07-23 13:52:27,094 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2018-07-23 13:52:27,094 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1326, Invalid=1326, Unknown=0, NotChecked=0, Total=2652 [2018-07-23 13:52:27,095 INFO L87 Difference]: Start difference. First operand 53 states and 53 transitions. Second operand 52 states. [2018-07-23 13:52:27,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:27,139 INFO L93 Difference]: Finished difference Result 56 states and 56 transitions. [2018-07-23 13:52:27,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2018-07-23 13:52:27,139 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 52 [2018-07-23 13:52:27,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:27,140 INFO L225 Difference]: With dead ends: 56 [2018-07-23 13:52:27,140 INFO L226 Difference]: Without dead ends: 54 [2018-07-23 13:52:27,141 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=1326, Invalid=1326, Unknown=0, NotChecked=0, Total=2652 [2018-07-23 13:52:27,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-07-23 13:52:27,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2018-07-23 13:52:27,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-07-23 13:52:27,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 54 transitions. [2018-07-23 13:52:27,145 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 54 transitions. Word has length 52 [2018-07-23 13:52:27,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:27,146 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 54 transitions. [2018-07-23 13:52:27,146 INFO L472 AbstractCegarLoop]: Interpolant automaton has 52 states. [2018-07-23 13:52:27,146 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 54 transitions. [2018-07-23 13:52:27,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-07-23 13:52:27,146 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:27,146 INFO L357 BasicCegarLoop]: trace histogram [50, 1, 1, 1] [2018-07-23 13:52:27,147 INFO L414 AbstractCegarLoop]: === Iteration 51 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:27,147 INFO L82 PathProgramCache]: Analyzing trace with hash -105059296, now seen corresponding path program 50 times [2018-07-23 13:52:27,147 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:27,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:27,720 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 0 proven. 1275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:27,720 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:27,720 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [52] total 52 [2018-07-23 13:52:27,721 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:27,721 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 13:52:27,721 INFO L185 omatonBuilderFactory]: Interpolants [7496#true, 7497#false, 7498#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 7499#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 7500#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 7501#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 7502#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 7503#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 7504#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 7505#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 7506#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 7507#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 7508#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 7509#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 7510#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 7511#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 7512#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 7513#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 7514#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 7515#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 7516#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 7517#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 7518#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 7519#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 7520#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 7521#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 7522#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 7523#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 7524#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 7525#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 7526#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 7527#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 7528#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 7529#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 7530#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 7531#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 7532#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 7533#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 7534#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 7535#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 7536#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 7537#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 7538#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 7539#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 7540#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 7541#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 7542#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 7543#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 7544#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 7545#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 7546#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 7547#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 7548#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:52:27,722 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 0 proven. 1275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:27,722 INFO L450 AbstractCegarLoop]: Interpolant automaton has 53 states [2018-07-23 13:52:27,723 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2018-07-23 13:52:27,723 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2018-07-23 13:52:27,724 INFO L87 Difference]: Start difference. First operand 54 states and 54 transitions. Second operand 53 states. [2018-07-23 13:52:27,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:27,780 INFO L93 Difference]: Finished difference Result 57 states and 57 transitions. [2018-07-23 13:52:27,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2018-07-23 13:52:27,780 INFO L78 Accepts]: Start accepts. Automaton has 53 states. Word has length 53 [2018-07-23 13:52:27,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:27,781 INFO L225 Difference]: With dead ends: 57 [2018-07-23 13:52:27,781 INFO L226 Difference]: Without dead ends: 55 [2018-07-23 13:52:27,782 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2018-07-23 13:52:27,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-07-23 13:52:27,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2018-07-23 13:52:27,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-07-23 13:52:27,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 55 transitions. [2018-07-23 13:52:27,792 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 55 transitions. Word has length 53 [2018-07-23 13:52:27,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:27,792 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 55 transitions. [2018-07-23 13:52:27,792 INFO L472 AbstractCegarLoop]: Interpolant automaton has 53 states. [2018-07-23 13:52:27,792 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 55 transitions. [2018-07-23 13:52:27,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-07-23 13:52:27,793 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:27,793 INFO L357 BasicCegarLoop]: trace histogram [51, 1, 1, 1] [2018-07-23 13:52:27,793 INFO L414 AbstractCegarLoop]: === Iteration 52 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:27,795 INFO L82 PathProgramCache]: Analyzing trace with hash 1038125254, now seen corresponding path program 51 times [2018-07-23 13:52:27,795 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:27,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:28,537 INFO L134 CoverageAnalysis]: Checked inductivity of 1326 backedges. 0 proven. 1326 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:28,538 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:28,538 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [53] total 53 [2018-07-23 13:52:28,538 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:28,538 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 13:52:28,539 INFO L185 omatonBuilderFactory]: Interpolants [7808#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 7809#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 7810#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 7811#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 7812#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 7813#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 7814#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 7815#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 7816#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 7817#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 7818#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 7819#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 7820#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 7821#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 7822#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 7823#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 7824#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 7825#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 7826#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 7773#true, 7774#false, 7775#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 7776#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 7777#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 7778#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 7779#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 7780#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 7781#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 7782#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 7783#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 7784#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 7785#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 7786#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 7787#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 7788#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 7789#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 7790#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 7791#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 7792#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 7793#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 7794#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 7795#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 7796#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 7797#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 7798#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 7799#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 7800#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 7801#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 7802#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 7803#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 7804#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 7805#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 7806#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 7807#(and (<= (select main_a main_x) 32) (not (= main_x main_y)))] [2018-07-23 13:52:28,539 INFO L134 CoverageAnalysis]: Checked inductivity of 1326 backedges. 0 proven. 1326 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:28,540 INFO L450 AbstractCegarLoop]: Interpolant automaton has 54 states [2018-07-23 13:52:28,540 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2018-07-23 13:52:28,541 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1431, Invalid=1431, Unknown=0, NotChecked=0, Total=2862 [2018-07-23 13:52:28,541 INFO L87 Difference]: Start difference. First operand 55 states and 55 transitions. Second operand 54 states. [2018-07-23 13:52:28,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:28,613 INFO L93 Difference]: Finished difference Result 58 states and 58 transitions. [2018-07-23 13:52:28,613 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2018-07-23 13:52:28,613 INFO L78 Accepts]: Start accepts. Automaton has 54 states. Word has length 54 [2018-07-23 13:52:28,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:28,614 INFO L225 Difference]: With dead ends: 58 [2018-07-23 13:52:28,614 INFO L226 Difference]: Without dead ends: 56 [2018-07-23 13:52:28,614 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=1431, Invalid=1431, Unknown=0, NotChecked=0, Total=2862 [2018-07-23 13:52:28,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-07-23 13:52:28,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2018-07-23 13:52:28,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-07-23 13:52:28,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 56 transitions. [2018-07-23 13:52:28,626 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 56 transitions. Word has length 54 [2018-07-23 13:52:28,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:28,626 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 56 transitions. [2018-07-23 13:52:28,626 INFO L472 AbstractCegarLoop]: Interpolant automaton has 54 states. [2018-07-23 13:52:28,626 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 56 transitions. [2018-07-23 13:52:28,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-07-23 13:52:28,627 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:28,627 INFO L357 BasicCegarLoop]: trace histogram [52, 1, 1, 1] [2018-07-23 13:52:28,627 INFO L414 AbstractCegarLoop]: === Iteration 53 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:28,627 INFO L82 PathProgramCache]: Analyzing trace with hash 2117107936, now seen corresponding path program 52 times [2018-07-23 13:52:28,628 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:28,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:29,175 INFO L134 CoverageAnalysis]: Checked inductivity of 1378 backedges. 0 proven. 1378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:29,176 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:29,176 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [54] total 54 [2018-07-23 13:52:29,176 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:29,176 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 13:52:29,177 INFO L185 omatonBuilderFactory]: Interpolants [8064#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 8065#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 8066#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 8067#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 8068#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 8069#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 8070#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 8071#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 8072#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 8073#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 8074#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 8075#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 8076#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 8077#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 8078#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 8079#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 8080#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 8081#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 8082#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 8083#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 8084#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 8085#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 8086#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 8087#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 8088#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 8089#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 8090#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 8091#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 8092#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 8093#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 8094#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 8095#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 8096#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 8097#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 8098#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 8099#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 8100#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 8101#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 8102#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 8103#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 8104#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 8105#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 8106#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 8107#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 8108#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 8109#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 8055#true, 8056#false, 8057#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 8058#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 8059#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 8060#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 8061#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 8062#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 8063#(and (<= (select main_a main_x) 6) (not (= main_x main_y)))] [2018-07-23 13:52:29,177 INFO L134 CoverageAnalysis]: Checked inductivity of 1378 backedges. 0 proven. 1378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:29,177 INFO L450 AbstractCegarLoop]: Interpolant automaton has 55 states [2018-07-23 13:52:29,178 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2018-07-23 13:52:29,180 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1485, Invalid=1485, Unknown=0, NotChecked=0, Total=2970 [2018-07-23 13:52:29,181 INFO L87 Difference]: Start difference. First operand 56 states and 56 transitions. Second operand 55 states. [2018-07-23 13:52:29,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:29,224 INFO L93 Difference]: Finished difference Result 59 states and 59 transitions. [2018-07-23 13:52:29,224 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2018-07-23 13:52:29,225 INFO L78 Accepts]: Start accepts. Automaton has 55 states. Word has length 55 [2018-07-23 13:52:29,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:29,225 INFO L225 Difference]: With dead ends: 59 [2018-07-23 13:52:29,225 INFO L226 Difference]: Without dead ends: 57 [2018-07-23 13:52:29,226 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=1485, Invalid=1485, Unknown=0, NotChecked=0, Total=2970 [2018-07-23 13:52:29,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-07-23 13:52:29,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2018-07-23 13:52:29,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-07-23 13:52:29,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 57 transitions. [2018-07-23 13:52:29,231 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 57 transitions. Word has length 55 [2018-07-23 13:52:29,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:29,231 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 57 transitions. [2018-07-23 13:52:29,231 INFO L472 AbstractCegarLoop]: Interpolant automaton has 55 states. [2018-07-23 13:52:29,231 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 57 transitions. [2018-07-23 13:52:29,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-07-23 13:52:29,232 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:29,232 INFO L357 BasicCegarLoop]: trace histogram [53, 1, 1, 1] [2018-07-23 13:52:29,232 INFO L414 AbstractCegarLoop]: === Iteration 54 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:29,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1205832710, now seen corresponding path program 53 times [2018-07-23 13:52:29,232 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:29,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:29,780 INFO L134 CoverageAnalysis]: Checked inductivity of 1431 backedges. 0 proven. 1431 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:29,780 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:29,780 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [55] total 55 [2018-07-23 13:52:29,780 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:29,781 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 13:52:29,781 INFO L185 omatonBuilderFactory]: Interpolants [8342#true, 8343#false, 8344#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 8345#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 8346#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 8347#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 8348#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 8349#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 8350#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 8351#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 8352#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 8353#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 8354#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 8355#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 8356#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 8357#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 8358#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 8359#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 8360#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 8361#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 8362#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 8363#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 8364#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 8365#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 8366#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 8367#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 8368#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 8369#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 8370#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 8371#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 8372#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 8373#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 8374#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 8375#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 8376#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 8377#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 8378#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 8379#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 8380#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 8381#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 8382#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 8383#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 8384#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 8385#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 8386#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 8387#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 8388#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 8389#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 8390#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 8391#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 8392#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 8393#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 8394#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 8395#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 8396#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 8397#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:52:29,781 INFO L134 CoverageAnalysis]: Checked inductivity of 1431 backedges. 0 proven. 1431 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:29,782 INFO L450 AbstractCegarLoop]: Interpolant automaton has 56 states [2018-07-23 13:52:29,782 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2018-07-23 13:52:29,783 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1540, Invalid=1540, Unknown=0, NotChecked=0, Total=3080 [2018-07-23 13:52:29,783 INFO L87 Difference]: Start difference. First operand 57 states and 57 transitions. Second operand 56 states. [2018-07-23 13:52:29,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:29,827 INFO L93 Difference]: Finished difference Result 60 states and 60 transitions. [2018-07-23 13:52:29,828 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2018-07-23 13:52:29,828 INFO L78 Accepts]: Start accepts. Automaton has 56 states. Word has length 56 [2018-07-23 13:52:29,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:29,828 INFO L225 Difference]: With dead ends: 60 [2018-07-23 13:52:29,829 INFO L226 Difference]: Without dead ends: 58 [2018-07-23 13:52:29,829 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=1540, Invalid=1540, Unknown=0, NotChecked=0, Total=3080 [2018-07-23 13:52:29,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-07-23 13:52:29,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2018-07-23 13:52:29,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-07-23 13:52:29,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 58 transitions. [2018-07-23 13:52:29,834 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 58 transitions. Word has length 56 [2018-07-23 13:52:29,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:29,835 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 58 transitions. [2018-07-23 13:52:29,835 INFO L472 AbstractCegarLoop]: Interpolant automaton has 56 states. [2018-07-23 13:52:29,835 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 58 transitions. [2018-07-23 13:52:29,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-07-23 13:52:29,835 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:29,836 INFO L357 BasicCegarLoop]: trace histogram [54, 1, 1, 1] [2018-07-23 13:52:29,836 INFO L414 AbstractCegarLoop]: === Iteration 55 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:29,836 INFO L82 PathProgramCache]: Analyzing trace with hash -1273895520, now seen corresponding path program 54 times [2018-07-23 13:52:29,836 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:29,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:30,451 INFO L134 CoverageAnalysis]: Checked inductivity of 1485 backedges. 0 proven. 1485 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:30,451 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:30,451 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [56] total 56 [2018-07-23 13:52:30,451 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:30,452 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 13:52:30,452 INFO L185 omatonBuilderFactory]: Interpolants [8634#true, 8635#false, 8636#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 8637#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 8638#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 8639#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 8640#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 8641#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 8642#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 8643#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 8644#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 8645#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 8646#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 8647#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 8648#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 8649#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 8650#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 8651#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 8652#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 8653#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 8654#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 8655#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 8656#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 8657#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 8658#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 8659#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 8660#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 8661#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 8662#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 8663#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 8664#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 8665#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 8666#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 8667#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 8668#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 8669#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 8670#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 8671#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 8672#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 8673#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 8674#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 8675#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 8676#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 8677#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 8678#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 8679#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 8680#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 8681#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 8682#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 8683#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 8684#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 8685#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 8686#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 8687#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 8688#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 8689#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 8690#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:52:30,452 INFO L134 CoverageAnalysis]: Checked inductivity of 1485 backedges. 0 proven. 1485 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:30,453 INFO L450 AbstractCegarLoop]: Interpolant automaton has 57 states [2018-07-23 13:52:30,453 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2018-07-23 13:52:30,454 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1596, Invalid=1596, Unknown=0, NotChecked=0, Total=3192 [2018-07-23 13:52:30,454 INFO L87 Difference]: Start difference. First operand 58 states and 58 transitions. Second operand 57 states. [2018-07-23 13:52:30,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:30,506 INFO L93 Difference]: Finished difference Result 61 states and 61 transitions. [2018-07-23 13:52:30,506 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2018-07-23 13:52:30,506 INFO L78 Accepts]: Start accepts. Automaton has 57 states. Word has length 57 [2018-07-23 13:52:30,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:30,507 INFO L225 Difference]: With dead ends: 61 [2018-07-23 13:52:30,507 INFO L226 Difference]: Without dead ends: 59 [2018-07-23 13:52:30,508 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=1596, Invalid=1596, Unknown=0, NotChecked=0, Total=3192 [2018-07-23 13:52:30,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-07-23 13:52:30,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2018-07-23 13:52:30,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-07-23 13:52:30,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 59 transitions. [2018-07-23 13:52:30,512 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 59 transitions. Word has length 57 [2018-07-23 13:52:30,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:30,513 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 59 transitions. [2018-07-23 13:52:30,513 INFO L472 AbstractCegarLoop]: Interpolant automaton has 57 states. [2018-07-23 13:52:30,513 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 59 transitions. [2018-07-23 13:52:30,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-07-23 13:52:30,514 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:30,514 INFO L357 BasicCegarLoop]: trace histogram [55, 1, 1, 1] [2018-07-23 13:52:30,514 INFO L414 AbstractCegarLoop]: === Iteration 56 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:30,514 INFO L82 PathProgramCache]: Analyzing trace with hash -836059322, now seen corresponding path program 55 times [2018-07-23 13:52:30,514 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:30,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:31,162 INFO L134 CoverageAnalysis]: Checked inductivity of 1540 backedges. 0 proven. 1540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:31,162 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:31,162 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [57] total 57 [2018-07-23 13:52:31,162 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:31,163 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 13:52:31,163 INFO L185 omatonBuilderFactory]: Interpolants [8960#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 8961#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 8962#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 8963#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 8964#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 8965#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 8966#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 8967#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 8968#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 8969#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 8970#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 8971#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 8972#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 8973#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 8974#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 8975#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 8976#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 8977#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 8978#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 8979#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 8980#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 8981#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 8982#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 8983#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 8984#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 8985#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 8986#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 8987#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 8988#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 8931#true, 8932#false, 8933#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 8934#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 8935#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 8936#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 8937#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 8938#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 8939#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 8940#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 8941#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 8942#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 8943#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 8944#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 8945#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 8946#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 8947#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 8948#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 8949#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 8950#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 8951#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 8952#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 8953#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 8954#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 8955#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 8956#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 8957#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 8958#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 8959#(and (<= (select main_a main_x) 26) (not (= main_x main_y)))] [2018-07-23 13:52:31,163 INFO L134 CoverageAnalysis]: Checked inductivity of 1540 backedges. 0 proven. 1540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:31,164 INFO L450 AbstractCegarLoop]: Interpolant automaton has 58 states [2018-07-23 13:52:31,164 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2018-07-23 13:52:31,165 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1653, Invalid=1653, Unknown=0, NotChecked=0, Total=3306 [2018-07-23 13:52:31,165 INFO L87 Difference]: Start difference. First operand 59 states and 59 transitions. Second operand 58 states. [2018-07-23 13:52:31,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:31,203 INFO L93 Difference]: Finished difference Result 62 states and 62 transitions. [2018-07-23 13:52:31,204 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2018-07-23 13:52:31,204 INFO L78 Accepts]: Start accepts. Automaton has 58 states. Word has length 58 [2018-07-23 13:52:31,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:31,204 INFO L225 Difference]: With dead ends: 62 [2018-07-23 13:52:31,205 INFO L226 Difference]: Without dead ends: 60 [2018-07-23 13:52:31,206 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=1653, Invalid=1653, Unknown=0, NotChecked=0, Total=3306 [2018-07-23 13:52:31,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-07-23 13:52:31,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2018-07-23 13:52:31,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-07-23 13:52:31,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 60 transitions. [2018-07-23 13:52:31,210 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 60 transitions. Word has length 58 [2018-07-23 13:52:31,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:31,211 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 60 transitions. [2018-07-23 13:52:31,211 INFO L472 AbstractCegarLoop]: Interpolant automaton has 58 states. [2018-07-23 13:52:31,211 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 60 transitions. [2018-07-23 13:52:31,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-07-23 13:52:31,212 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:31,212 INFO L357 BasicCegarLoop]: trace histogram [56, 1, 1, 1] [2018-07-23 13:52:31,212 INFO L414 AbstractCegarLoop]: === Iteration 57 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:31,212 INFO L82 PathProgramCache]: Analyzing trace with hash -148039072, now seen corresponding path program 56 times [2018-07-23 13:52:31,212 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:31,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:31,830 INFO L134 CoverageAnalysis]: Checked inductivity of 1596 backedges. 0 proven. 1596 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:31,830 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:31,830 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [58] total 58 [2018-07-23 13:52:31,831 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:31,831 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 13:52:31,831 INFO L185 omatonBuilderFactory]: Interpolants [9233#true, 9234#false, 9235#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 9236#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 9237#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 9238#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 9239#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 9240#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 9241#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 9242#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 9243#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 9244#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 9245#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 9246#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 9247#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 9248#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 9249#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 9250#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 9251#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 9252#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 9253#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 9254#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 9255#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 9256#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 9257#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 9258#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 9259#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 9260#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 9261#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 9262#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 9263#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 9264#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 9265#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 9266#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 9267#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 9268#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 9269#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 9270#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 9271#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 9272#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 9273#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 9274#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 9275#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 9276#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 9277#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 9278#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 9279#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 9280#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 9281#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 9282#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 9283#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 9284#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 9285#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 9286#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 9287#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 9288#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 9289#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 9290#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 9291#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:52:31,832 INFO L134 CoverageAnalysis]: Checked inductivity of 1596 backedges. 0 proven. 1596 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:31,832 INFO L450 AbstractCegarLoop]: Interpolant automaton has 59 states [2018-07-23 13:52:31,832 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2018-07-23 13:52:31,833 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1711, Invalid=1711, Unknown=0, NotChecked=0, Total=3422 [2018-07-23 13:52:31,834 INFO L87 Difference]: Start difference. First operand 60 states and 60 transitions. Second operand 59 states. [2018-07-23 13:52:31,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:31,889 INFO L93 Difference]: Finished difference Result 63 states and 63 transitions. [2018-07-23 13:52:31,889 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2018-07-23 13:52:31,889 INFO L78 Accepts]: Start accepts. Automaton has 59 states. Word has length 59 [2018-07-23 13:52:31,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:31,890 INFO L225 Difference]: With dead ends: 63 [2018-07-23 13:52:31,890 INFO L226 Difference]: Without dead ends: 61 [2018-07-23 13:52:31,891 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=1711, Invalid=1711, Unknown=0, NotChecked=0, Total=3422 [2018-07-23 13:52:31,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-07-23 13:52:31,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2018-07-23 13:52:31,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-07-23 13:52:31,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 61 transitions. [2018-07-23 13:52:31,896 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 61 transitions. Word has length 59 [2018-07-23 13:52:31,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:31,897 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 61 transitions. [2018-07-23 13:52:31,897 INFO L472 AbstractCegarLoop]: Interpolant automaton has 59 states. [2018-07-23 13:52:31,897 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 61 transitions. [2018-07-23 13:52:31,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-07-23 13:52:31,897 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:31,897 INFO L357 BasicCegarLoop]: trace histogram [57, 1, 1, 1] [2018-07-23 13:52:31,898 INFO L414 AbstractCegarLoop]: === Iteration 58 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:31,898 INFO L82 PathProgramCache]: Analyzing trace with hash -294247802, now seen corresponding path program 57 times [2018-07-23 13:52:31,898 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:31,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:32,524 INFO L134 CoverageAnalysis]: Checked inductivity of 1653 backedges. 0 proven. 1653 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:32,524 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:32,525 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [59] total 59 [2018-07-23 13:52:32,525 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:32,525 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 13:52:32,525 INFO L185 omatonBuilderFactory]: Interpolants [9540#true, 9541#false, 9542#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 9543#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 9544#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 9545#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 9546#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 9547#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 9548#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 9549#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 9550#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 9551#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 9552#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 9553#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 9554#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 9555#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 9556#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 9557#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 9558#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 9559#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 9560#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 9561#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 9562#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 9563#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 9564#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 9565#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 9566#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 9567#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 9568#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 9569#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 9570#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 9571#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 9572#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 9573#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 9574#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 9575#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 9576#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 9577#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 9578#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 9579#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 9580#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 9581#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 9582#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 9583#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 9584#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 9585#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 9586#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 9587#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 9588#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 9589#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 9590#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 9591#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 9592#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 9593#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 9594#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 9595#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 9596#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 9597#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 9598#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 9599#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:52:32,526 INFO L134 CoverageAnalysis]: Checked inductivity of 1653 backedges. 0 proven. 1653 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:32,526 INFO L450 AbstractCegarLoop]: Interpolant automaton has 60 states [2018-07-23 13:52:32,526 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2018-07-23 13:52:32,527 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1770, Invalid=1770, Unknown=0, NotChecked=0, Total=3540 [2018-07-23 13:52:32,527 INFO L87 Difference]: Start difference. First operand 61 states and 61 transitions. Second operand 60 states. [2018-07-23 13:52:32,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:32,597 INFO L93 Difference]: Finished difference Result 64 states and 64 transitions. [2018-07-23 13:52:32,597 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2018-07-23 13:52:32,597 INFO L78 Accepts]: Start accepts. Automaton has 60 states. Word has length 60 [2018-07-23 13:52:32,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:32,598 INFO L225 Difference]: With dead ends: 64 [2018-07-23 13:52:32,598 INFO L226 Difference]: Without dead ends: 62 [2018-07-23 13:52:32,599 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=1770, Invalid=1770, Unknown=0, NotChecked=0, Total=3540 [2018-07-23 13:52:32,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2018-07-23 13:52:32,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2018-07-23 13:52:32,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-07-23 13:52:32,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 62 transitions. [2018-07-23 13:52:32,604 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 62 transitions. Word has length 60 [2018-07-23 13:52:32,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:32,604 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 62 transitions. [2018-07-23 13:52:32,604 INFO L472 AbstractCegarLoop]: Interpolant automaton has 60 states. [2018-07-23 13:52:32,604 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 62 transitions. [2018-07-23 13:52:32,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-07-23 13:52:32,605 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:32,605 INFO L357 BasicCegarLoop]: trace histogram [58, 1, 1, 1] [2018-07-23 13:52:32,605 INFO L414 AbstractCegarLoop]: === Iteration 59 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:32,605 INFO L82 PathProgramCache]: Analyzing trace with hash -531751136, now seen corresponding path program 58 times [2018-07-23 13:52:32,606 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:32,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:33,223 INFO L134 CoverageAnalysis]: Checked inductivity of 1711 backedges. 0 proven. 1711 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:33,223 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:33,224 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [60] total 60 [2018-07-23 13:52:33,224 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:33,224 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 13:52:33,224 INFO L185 omatonBuilderFactory]: Interpolants [9856#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 9857#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 9858#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 9859#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 9860#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 9861#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 9862#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 9863#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 9864#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 9865#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 9866#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 9867#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 9868#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 9869#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 9870#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 9871#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 9872#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 9873#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 9874#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 9875#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 9876#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 9877#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 9878#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 9879#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 9880#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 9881#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 9882#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 9883#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 9884#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 9885#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 9886#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 9887#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 9888#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 9889#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 9890#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 9891#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 9892#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 9893#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 9894#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 9895#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 9896#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 9897#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 9898#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 9899#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 9900#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 9901#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 9902#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 9903#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 9904#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 9905#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 9906#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 9907#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 9908#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 9909#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 9910#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 9911#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 9912#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 9852#true, 9853#false, 9854#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 9855#(and (not (= main_x main_y)) (<= (select main_a main_x) 1))] [2018-07-23 13:52:33,225 INFO L134 CoverageAnalysis]: Checked inductivity of 1711 backedges. 0 proven. 1711 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:33,225 INFO L450 AbstractCegarLoop]: Interpolant automaton has 61 states [2018-07-23 13:52:33,226 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2018-07-23 13:52:33,226 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1830, Invalid=1830, Unknown=0, NotChecked=0, Total=3660 [2018-07-23 13:52:33,226 INFO L87 Difference]: Start difference. First operand 62 states and 62 transitions. Second operand 61 states. [2018-07-23 13:52:33,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:33,278 INFO L93 Difference]: Finished difference Result 65 states and 65 transitions. [2018-07-23 13:52:33,278 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2018-07-23 13:52:33,279 INFO L78 Accepts]: Start accepts. Automaton has 61 states. Word has length 61 [2018-07-23 13:52:33,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:33,279 INFO L225 Difference]: With dead ends: 65 [2018-07-23 13:52:33,279 INFO L226 Difference]: Without dead ends: 63 [2018-07-23 13:52:33,280 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=1830, Invalid=1830, Unknown=0, NotChecked=0, Total=3660 [2018-07-23 13:52:33,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-07-23 13:52:33,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2018-07-23 13:52:33,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-07-23 13:52:33,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 63 transitions. [2018-07-23 13:52:33,285 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 63 transitions. Word has length 61 [2018-07-23 13:52:33,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:33,285 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 63 transitions. [2018-07-23 13:52:33,285 INFO L472 AbstractCegarLoop]: Interpolant automaton has 61 states. [2018-07-23 13:52:33,285 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 63 transitions. [2018-07-23 13:52:33,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-07-23 13:52:33,286 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:33,286 INFO L357 BasicCegarLoop]: trace histogram [59, 1, 1, 1] [2018-07-23 13:52:33,286 INFO L414 AbstractCegarLoop]: === Iteration 60 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:33,287 INFO L82 PathProgramCache]: Analyzing trace with hash 695580102, now seen corresponding path program 59 times [2018-07-23 13:52:33,287 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:33,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:33,903 INFO L134 CoverageAnalysis]: Checked inductivity of 1770 backedges. 0 proven. 1770 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:33,903 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:33,903 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [61] total 61 [2018-07-23 13:52:33,903 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:33,903 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 13:52:33,904 INFO L185 omatonBuilderFactory]: Interpolants [10169#true, 10170#false, 10171#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 10172#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 10173#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 10174#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 10175#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 10176#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 10177#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 10178#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 10179#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 10180#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 10181#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 10182#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 10183#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 10184#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 10185#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 10186#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 10187#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 10188#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 10189#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 10190#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 10191#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 10192#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 10193#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 10194#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 10195#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 10196#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 10197#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 10198#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 10199#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 10200#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 10201#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 10202#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 10203#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 10204#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 10205#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 10206#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 10207#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 10208#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 10209#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 10210#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 10211#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 10212#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 10213#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 10214#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 10215#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 10216#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 10217#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 10218#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 10219#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 10220#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 10221#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 10222#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 10223#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 10224#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 10225#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 10226#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 10227#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 10228#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 10229#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 10230#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:52:33,904 INFO L134 CoverageAnalysis]: Checked inductivity of 1770 backedges. 0 proven. 1770 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:33,904 INFO L450 AbstractCegarLoop]: Interpolant automaton has 62 states [2018-07-23 13:52:33,905 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2018-07-23 13:52:33,905 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1891, Invalid=1891, Unknown=0, NotChecked=0, Total=3782 [2018-07-23 13:52:33,905 INFO L87 Difference]: Start difference. First operand 63 states and 63 transitions. Second operand 62 states. [2018-07-23 13:52:33,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:33,958 INFO L93 Difference]: Finished difference Result 66 states and 66 transitions. [2018-07-23 13:52:33,958 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2018-07-23 13:52:33,958 INFO L78 Accepts]: Start accepts. Automaton has 62 states. Word has length 62 [2018-07-23 13:52:33,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:33,958 INFO L225 Difference]: With dead ends: 66 [2018-07-23 13:52:33,959 INFO L226 Difference]: Without dead ends: 64 [2018-07-23 13:52:33,959 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=1891, Invalid=1891, Unknown=0, NotChecked=0, Total=3782 [2018-07-23 13:52:33,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-07-23 13:52:33,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2018-07-23 13:52:33,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-07-23 13:52:33,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 64 transitions. [2018-07-23 13:52:33,964 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 64 transitions. Word has length 62 [2018-07-23 13:52:33,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:33,964 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 64 transitions. [2018-07-23 13:52:33,964 INFO L472 AbstractCegarLoop]: Interpolant automaton has 62 states. [2018-07-23 13:52:33,965 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 64 transitions. [2018-07-23 13:52:33,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-07-23 13:52:33,965 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:33,965 INFO L357 BasicCegarLoop]: trace histogram [60, 1, 1, 1] [2018-07-23 13:52:33,965 INFO L414 AbstractCegarLoop]: === Iteration 61 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:33,966 INFO L82 PathProgramCache]: Analyzing trace with hash 88142816, now seen corresponding path program 60 times [2018-07-23 13:52:33,966 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:34,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:34,651 INFO L134 CoverageAnalysis]: Checked inductivity of 1830 backedges. 0 proven. 1830 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:34,651 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:34,652 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [62] total 62 [2018-07-23 13:52:34,652 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:34,652 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 13:52:34,653 INFO L185 omatonBuilderFactory]: Interpolants [10496#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 10497#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 10498#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 10499#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 10500#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 10501#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 10502#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 10503#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 10504#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 10505#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 10506#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 10507#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 10508#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 10509#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 10510#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 10511#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 10512#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 10513#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 10514#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 10515#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 10516#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 10517#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 10518#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 10519#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 10520#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 10521#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 10522#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 10523#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 10524#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 10525#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 10526#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 10527#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 10528#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 10529#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 10530#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 10531#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 10532#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 10533#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 10534#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 10535#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 10536#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 10537#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 10538#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 10539#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 10540#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 10541#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 10542#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 10543#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 10544#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 10545#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 10546#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 10547#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 10548#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 10549#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 10550#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 10551#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 10552#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 10553#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 10491#true, 10492#false, 10493#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 10494#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 10495#(and (not (= main_x main_y)) (<= (select main_a main_x) 2))] [2018-07-23 13:52:34,653 INFO L134 CoverageAnalysis]: Checked inductivity of 1830 backedges. 0 proven. 1830 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:34,653 INFO L450 AbstractCegarLoop]: Interpolant automaton has 63 states [2018-07-23 13:52:34,654 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2018-07-23 13:52:34,654 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1953, Invalid=1953, Unknown=0, NotChecked=0, Total=3906 [2018-07-23 13:52:34,655 INFO L87 Difference]: Start difference. First operand 64 states and 64 transitions. Second operand 63 states. [2018-07-23 13:52:34,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:34,717 INFO L93 Difference]: Finished difference Result 67 states and 67 transitions. [2018-07-23 13:52:34,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2018-07-23 13:52:34,717 INFO L78 Accepts]: Start accepts. Automaton has 63 states. Word has length 63 [2018-07-23 13:52:34,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:34,718 INFO L225 Difference]: With dead ends: 67 [2018-07-23 13:52:34,718 INFO L226 Difference]: Without dead ends: 65 [2018-07-23 13:52:34,719 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=1953, Invalid=1953, Unknown=0, NotChecked=0, Total=3906 [2018-07-23 13:52:34,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-07-23 13:52:34,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2018-07-23 13:52:34,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-07-23 13:52:34,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 65 transitions. [2018-07-23 13:52:34,725 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 65 transitions. Word has length 63 [2018-07-23 13:52:34,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:34,726 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 65 transitions. [2018-07-23 13:52:34,726 INFO L472 AbstractCegarLoop]: Interpolant automaton has 63 states. [2018-07-23 13:52:34,726 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 65 transitions. [2018-07-23 13:52:34,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-07-23 13:52:34,727 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:34,727 INFO L357 BasicCegarLoop]: trace histogram [61, 1, 1, 1] [2018-07-23 13:52:34,727 INFO L414 AbstractCegarLoop]: === Iteration 62 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:34,727 INFO L82 PathProgramCache]: Analyzing trace with hash -1562543866, now seen corresponding path program 61 times [2018-07-23 13:52:34,727 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:34,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:35,527 INFO L134 CoverageAnalysis]: Checked inductivity of 1891 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:35,528 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:35,528 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [63] total 63 [2018-07-23 13:52:35,528 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:35,528 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 13:52:35,529 INFO L185 omatonBuilderFactory]: Interpolants [10880#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 10881#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 10818#true, 10819#false, 10820#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 10821#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 10822#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 10823#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 10824#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 10825#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 10826#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 10827#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 10828#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 10829#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 10830#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 10831#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 10832#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 10833#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 10834#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 10835#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 10836#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 10837#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 10838#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 10839#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 10840#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 10841#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 10842#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 10843#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 10844#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 10845#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 10846#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 10847#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 10848#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 10849#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 10850#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 10851#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 10852#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 10853#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 10854#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 10855#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 10856#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 10857#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 10858#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 10859#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 10860#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 10861#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 10862#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 10863#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 10864#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 10865#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 10866#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 10867#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 10868#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 10869#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 10870#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 10871#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 10872#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 10873#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 10874#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 10875#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 10876#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 10877#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 10878#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 10879#(and (not (= main_x main_y)) (<= (select main_a main_x) 59))] [2018-07-23 13:52:35,529 INFO L134 CoverageAnalysis]: Checked inductivity of 1891 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:35,529 INFO L450 AbstractCegarLoop]: Interpolant automaton has 64 states [2018-07-23 13:52:35,530 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2018-07-23 13:52:35,533 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2018-07-23 13:52:35,534 INFO L87 Difference]: Start difference. First operand 65 states and 65 transitions. Second operand 64 states. [2018-07-23 13:52:35,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:35,576 INFO L93 Difference]: Finished difference Result 68 states and 68 transitions. [2018-07-23 13:52:35,576 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2018-07-23 13:52:35,577 INFO L78 Accepts]: Start accepts. Automaton has 64 states. Word has length 64 [2018-07-23 13:52:35,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:35,577 INFO L225 Difference]: With dead ends: 68 [2018-07-23 13:52:35,577 INFO L226 Difference]: Without dead ends: 66 [2018-07-23 13:52:35,578 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2018-07-23 13:52:35,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-07-23 13:52:35,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2018-07-23 13:52:35,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2018-07-23 13:52:35,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 66 transitions. [2018-07-23 13:52:35,583 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 66 transitions. Word has length 64 [2018-07-23 13:52:35,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:35,584 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 66 transitions. [2018-07-23 13:52:35,584 INFO L472 AbstractCegarLoop]: Interpolant automaton has 64 states. [2018-07-23 13:52:35,584 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 66 transitions. [2018-07-23 13:52:35,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-07-23 13:52:35,584 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:35,584 INFO L357 BasicCegarLoop]: trace histogram [62, 1, 1, 1] [2018-07-23 13:52:35,585 INFO L414 AbstractCegarLoop]: === Iteration 63 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:35,585 INFO L82 PathProgramCache]: Analyzing trace with hash -1194223456, now seen corresponding path program 62 times [2018-07-23 13:52:35,585 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:35,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:36,350 INFO L134 CoverageAnalysis]: Checked inductivity of 1953 backedges. 0 proven. 1953 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:36,350 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:36,351 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [64] total 64 [2018-07-23 13:52:36,351 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:36,351 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 13:52:36,352 INFO L185 omatonBuilderFactory]: Interpolants [11150#true, 11151#false, 11152#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 11153#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 11154#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 11155#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 11156#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 11157#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 11158#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 11159#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 11160#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 11161#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 11162#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 11163#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 11164#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 11165#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 11166#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 11167#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 11168#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 11169#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 11170#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 11171#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 11172#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 11173#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 11174#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 11175#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 11176#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 11177#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 11178#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 11179#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 11180#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 11181#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 11182#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 11183#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 11184#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 11185#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 11186#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 11187#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 11188#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 11189#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 11190#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 11191#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 11192#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 11193#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 11194#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 11195#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 11196#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 11197#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 11198#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 11199#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 11200#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 11201#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 11202#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 11203#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 11204#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 11205#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 11206#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 11207#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 11208#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 11209#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 11210#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 11211#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 11212#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 11213#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 11214#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:52:36,352 INFO L134 CoverageAnalysis]: Checked inductivity of 1953 backedges. 0 proven. 1953 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:36,352 INFO L450 AbstractCegarLoop]: Interpolant automaton has 65 states [2018-07-23 13:52:36,353 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2018-07-23 13:52:36,353 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2080, Invalid=2080, Unknown=0, NotChecked=0, Total=4160 [2018-07-23 13:52:36,353 INFO L87 Difference]: Start difference. First operand 66 states and 66 transitions. Second operand 65 states. [2018-07-23 13:52:36,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:36,415 INFO L93 Difference]: Finished difference Result 69 states and 69 transitions. [2018-07-23 13:52:36,415 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2018-07-23 13:52:36,416 INFO L78 Accepts]: Start accepts. Automaton has 65 states. Word has length 65 [2018-07-23 13:52:36,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:36,416 INFO L225 Difference]: With dead ends: 69 [2018-07-23 13:52:36,416 INFO L226 Difference]: Without dead ends: 67 [2018-07-23 13:52:36,417 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=2080, Invalid=2080, Unknown=0, NotChecked=0, Total=4160 [2018-07-23 13:52:36,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-07-23 13:52:36,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2018-07-23 13:52:36,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-07-23 13:52:36,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 67 transitions. [2018-07-23 13:52:36,422 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 67 transitions. Word has length 65 [2018-07-23 13:52:36,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:36,422 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 67 transitions. [2018-07-23 13:52:36,422 INFO L472 AbstractCegarLoop]: Interpolant automaton has 65 states. [2018-07-23 13:52:36,422 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 67 transitions. [2018-07-23 13:52:36,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-07-23 13:52:36,423 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:36,423 INFO L357 BasicCegarLoop]: trace histogram [63, 1, 1, 1] [2018-07-23 13:52:36,423 INFO L414 AbstractCegarLoop]: === Iteration 64 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:36,423 INFO L82 PathProgramCache]: Analyzing trace with hash 1633774662, now seen corresponding path program 63 times [2018-07-23 13:52:36,423 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:36,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:37,096 INFO L134 CoverageAnalysis]: Checked inductivity of 2016 backedges. 0 proven. 2016 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:37,097 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:37,097 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [65] total 65 [2018-07-23 13:52:37,097 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:37,097 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 13:52:37,098 INFO L185 omatonBuilderFactory]: Interpolants [11520#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 11521#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 11522#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 11523#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 11524#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 11525#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 11526#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 11527#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 11528#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 11529#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 11530#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 11531#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 11532#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 11533#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 11534#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 11535#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 11536#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 11537#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 11538#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 11539#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 11540#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 11541#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 11542#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 11543#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 11544#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 11545#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 11546#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 11547#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 11548#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 11549#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 11550#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 11551#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 11552#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 11487#true, 11488#false, 11489#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 11490#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 11491#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 11492#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 11493#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 11494#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 11495#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 11496#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 11497#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 11498#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 11499#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 11500#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 11501#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 11502#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 11503#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 11504#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 11505#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 11506#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 11507#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 11508#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 11509#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 11510#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 11511#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 11512#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 11513#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 11514#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 11515#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 11516#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 11517#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 11518#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 11519#(and (not (= main_x main_y)) (<= (select main_a main_x) 30))] [2018-07-23 13:52:37,098 INFO L134 CoverageAnalysis]: Checked inductivity of 2016 backedges. 0 proven. 2016 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:37,098 INFO L450 AbstractCegarLoop]: Interpolant automaton has 66 states [2018-07-23 13:52:37,099 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2018-07-23 13:52:37,099 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2145, Invalid=2145, Unknown=0, NotChecked=0, Total=4290 [2018-07-23 13:52:37,099 INFO L87 Difference]: Start difference. First operand 67 states and 67 transitions. Second operand 66 states. [2018-07-23 13:52:37,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:37,141 INFO L93 Difference]: Finished difference Result 70 states and 70 transitions. [2018-07-23 13:52:37,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2018-07-23 13:52:37,141 INFO L78 Accepts]: Start accepts. Automaton has 66 states. Word has length 66 [2018-07-23 13:52:37,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:37,142 INFO L225 Difference]: With dead ends: 70 [2018-07-23 13:52:37,142 INFO L226 Difference]: Without dead ends: 68 [2018-07-23 13:52:37,143 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=2145, Invalid=2145, Unknown=0, NotChecked=0, Total=4290 [2018-07-23 13:52:37,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-07-23 13:52:37,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2018-07-23 13:52:37,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-07-23 13:52:37,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 68 transitions. [2018-07-23 13:52:37,149 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 68 transitions. Word has length 66 [2018-07-23 13:52:37,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:37,150 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 68 transitions. [2018-07-23 13:52:37,150 INFO L472 AbstractCegarLoop]: Interpolant automaton has 66 states. [2018-07-23 13:52:37,150 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 68 transitions. [2018-07-23 13:52:37,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-07-23 13:52:37,150 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:37,151 INFO L357 BasicCegarLoop]: trace histogram [64, 1, 1, 1] [2018-07-23 13:52:37,151 INFO L414 AbstractCegarLoop]: === Iteration 65 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:37,151 INFO L82 PathProgramCache]: Analyzing trace with hash -892596896, now seen corresponding path program 64 times [2018-07-23 13:52:37,151 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:37,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:37,914 INFO L134 CoverageAnalysis]: Checked inductivity of 2080 backedges. 0 proven. 2080 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:37,914 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:37,914 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [66] total 66 [2018-07-23 13:52:37,914 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:37,915 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 13:52:37,915 INFO L185 omatonBuilderFactory]: Interpolants [11829#true, 11830#false, 11831#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 11832#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 11833#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 11834#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 11835#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 11836#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 11837#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 11838#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 11839#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 11840#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 11841#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 11842#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 11843#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 11844#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 11845#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 11846#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 11847#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 11848#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 11849#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 11850#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 11851#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 11852#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 11853#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 11854#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 11855#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 11856#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 11857#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 11858#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 11859#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 11860#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 11861#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 11862#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 11863#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 11864#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 11865#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 11866#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 11867#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 11868#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 11869#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 11870#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 11871#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 11872#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 11873#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 11874#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 11875#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 11876#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 11877#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 11878#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 11879#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 11880#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 11881#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 11882#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 11883#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 11884#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 11885#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 11886#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 11887#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 11888#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 11889#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 11890#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 11891#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 11892#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 11893#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 11894#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 11895#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:52:37,915 INFO L134 CoverageAnalysis]: Checked inductivity of 2080 backedges. 0 proven. 2080 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:37,916 INFO L450 AbstractCegarLoop]: Interpolant automaton has 67 states [2018-07-23 13:52:37,916 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2018-07-23 13:52:37,917 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2211, Invalid=2211, Unknown=0, NotChecked=0, Total=4422 [2018-07-23 13:52:37,917 INFO L87 Difference]: Start difference. First operand 68 states and 68 transitions. Second operand 67 states. [2018-07-23 13:52:37,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:37,978 INFO L93 Difference]: Finished difference Result 71 states and 71 transitions. [2018-07-23 13:52:37,978 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2018-07-23 13:52:37,978 INFO L78 Accepts]: Start accepts. Automaton has 67 states. Word has length 67 [2018-07-23 13:52:37,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:37,979 INFO L225 Difference]: With dead ends: 71 [2018-07-23 13:52:37,979 INFO L226 Difference]: Without dead ends: 69 [2018-07-23 13:52:37,979 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=2211, Invalid=2211, Unknown=0, NotChecked=0, Total=4422 [2018-07-23 13:52:37,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-07-23 13:52:37,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2018-07-23 13:52:37,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-07-23 13:52:37,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 69 transitions. [2018-07-23 13:52:37,985 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 69 transitions. Word has length 67 [2018-07-23 13:52:37,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:37,985 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 69 transitions. [2018-07-23 13:52:37,985 INFO L472 AbstractCegarLoop]: Interpolant automaton has 67 states. [2018-07-23 13:52:37,985 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 69 transitions. [2018-07-23 13:52:37,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-07-23 13:52:37,986 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:37,986 INFO L357 BasicCegarLoop]: trace histogram [65, 1, 1, 1] [2018-07-23 13:52:37,986 INFO L414 AbstractCegarLoop]: === Iteration 66 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:37,986 INFO L82 PathProgramCache]: Analyzing trace with hash -1900703866, now seen corresponding path program 65 times [2018-07-23 13:52:37,986 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:38,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:38,733 INFO L134 CoverageAnalysis]: Checked inductivity of 2145 backedges. 0 proven. 2145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:38,733 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:38,733 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [67] total 67 [2018-07-23 13:52:38,733 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:38,733 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 13:52:38,734 INFO L185 omatonBuilderFactory]: Interpolants [12176#true, 12177#false, 12178#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 12179#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 12180#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 12181#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 12182#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 12183#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 12184#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 12185#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 12186#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 12187#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 12188#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 12189#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 12190#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 12191#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 12192#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 12193#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 12194#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 12195#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 12196#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 12197#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 12198#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 12199#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 12200#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 12201#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 12202#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 12203#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 12204#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 12205#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 12206#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 12207#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 12208#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 12209#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 12210#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 12211#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 12212#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 12213#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 12214#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 12215#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 12216#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 12217#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 12218#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 12219#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 12220#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 12221#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 12222#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 12223#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 12224#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 12225#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 12226#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 12227#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 12228#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 12229#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 12230#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 12231#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 12232#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 12233#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 12234#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 12235#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 12236#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 12237#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 12238#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 12239#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 12240#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 12241#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 12242#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 12243#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:52:38,734 INFO L134 CoverageAnalysis]: Checked inductivity of 2145 backedges. 0 proven. 2145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:38,734 INFO L450 AbstractCegarLoop]: Interpolant automaton has 68 states [2018-07-23 13:52:38,735 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2018-07-23 13:52:38,735 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2278, Invalid=2278, Unknown=0, NotChecked=0, Total=4556 [2018-07-23 13:52:38,735 INFO L87 Difference]: Start difference. First operand 69 states and 69 transitions. Second operand 68 states. [2018-07-23 13:52:38,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:38,790 INFO L93 Difference]: Finished difference Result 72 states and 72 transitions. [2018-07-23 13:52:38,790 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2018-07-23 13:52:38,790 INFO L78 Accepts]: Start accepts. Automaton has 68 states. Word has length 68 [2018-07-23 13:52:38,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:38,791 INFO L225 Difference]: With dead ends: 72 [2018-07-23 13:52:38,791 INFO L226 Difference]: Without dead ends: 70 [2018-07-23 13:52:38,791 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=2278, Invalid=2278, Unknown=0, NotChecked=0, Total=4556 [2018-07-23 13:52:38,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-07-23 13:52:38,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2018-07-23 13:52:38,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2018-07-23 13:52:38,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 70 transitions. [2018-07-23 13:52:38,796 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 70 transitions. Word has length 68 [2018-07-23 13:52:38,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:38,797 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 70 transitions. [2018-07-23 13:52:38,797 INFO L472 AbstractCegarLoop]: Interpolant automaton has 68 states. [2018-07-23 13:52:38,797 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 70 transitions. [2018-07-23 13:52:38,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-07-23 13:52:38,797 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:38,798 INFO L357 BasicCegarLoop]: trace histogram [66, 1, 1, 1] [2018-07-23 13:52:38,798 INFO L414 AbstractCegarLoop]: === Iteration 67 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:38,798 INFO L82 PathProgramCache]: Analyzing trace with hash 1207718432, now seen corresponding path program 66 times [2018-07-23 13:52:38,798 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:38,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:39,514 INFO L134 CoverageAnalysis]: Checked inductivity of 2211 backedges. 0 proven. 2211 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:39,514 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:39,514 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [68] total 68 [2018-07-23 13:52:39,514 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:39,515 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 13:52:39,515 INFO L185 omatonBuilderFactory]: Interpolants [12544#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 12545#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 12546#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 12547#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 12548#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 12549#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 12550#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 12551#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 12552#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 12553#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 12554#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 12555#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 12556#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 12557#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 12558#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 12559#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 12560#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 12561#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 12562#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 12563#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 12564#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 12565#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 12566#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 12567#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 12568#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 12569#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 12570#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 12571#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 12572#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 12573#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 12574#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 12575#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 12576#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 12577#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 12578#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 12579#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 12580#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 12581#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 12582#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 12583#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 12584#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 12585#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 12586#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 12587#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 12588#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 12589#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 12590#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 12591#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 12592#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 12593#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 12594#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 12595#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 12596#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 12528#true, 12529#false, 12530#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 12531#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 12532#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 12533#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 12534#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 12535#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 12536#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 12537#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 12538#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 12539#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 12540#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 12541#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 12542#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 12543#(and (not (= main_x main_y)) (<= (select main_a main_x) 13))] [2018-07-23 13:52:39,516 INFO L134 CoverageAnalysis]: Checked inductivity of 2211 backedges. 0 proven. 2211 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:39,516 INFO L450 AbstractCegarLoop]: Interpolant automaton has 69 states [2018-07-23 13:52:39,516 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2018-07-23 13:52:39,517 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2346, Invalid=2346, Unknown=0, NotChecked=0, Total=4692 [2018-07-23 13:52:39,517 INFO L87 Difference]: Start difference. First operand 70 states and 70 transitions. Second operand 69 states. [2018-07-23 13:52:39,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:39,578 INFO L93 Difference]: Finished difference Result 73 states and 73 transitions. [2018-07-23 13:52:39,580 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2018-07-23 13:52:39,581 INFO L78 Accepts]: Start accepts. Automaton has 69 states. Word has length 69 [2018-07-23 13:52:39,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:39,581 INFO L225 Difference]: With dead ends: 73 [2018-07-23 13:52:39,581 INFO L226 Difference]: Without dead ends: 71 [2018-07-23 13:52:39,582 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=2346, Invalid=2346, Unknown=0, NotChecked=0, Total=4692 [2018-07-23 13:52:39,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-07-23 13:52:39,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2018-07-23 13:52:39,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-07-23 13:52:39,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 71 transitions. [2018-07-23 13:52:39,587 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 71 transitions. Word has length 69 [2018-07-23 13:52:39,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:39,587 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 71 transitions. [2018-07-23 13:52:39,588 INFO L472 AbstractCegarLoop]: Interpolant automaton has 69 states. [2018-07-23 13:52:39,588 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 71 transitions. [2018-07-23 13:52:39,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-07-23 13:52:39,595 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:39,595 INFO L357 BasicCegarLoop]: trace histogram [67, 1, 1, 1] [2018-07-23 13:52:39,595 INFO L414 AbstractCegarLoop]: === Iteration 68 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:39,595 INFO L82 PathProgramCache]: Analyzing trace with hash -1215438138, now seen corresponding path program 67 times [2018-07-23 13:52:39,596 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:39,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:40,283 INFO L134 CoverageAnalysis]: Checked inductivity of 2278 backedges. 0 proven. 2278 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:40,283 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:40,283 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [69] total 69 [2018-07-23 13:52:40,283 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:40,283 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 13:52:40,284 INFO L185 omatonBuilderFactory]: Interpolants [12928#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 12929#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 12930#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 12931#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 12932#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 12933#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 12934#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 12935#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 12936#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 12937#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 12938#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 12939#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 12940#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 12941#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 12942#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 12943#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 12944#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 12945#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 12946#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 12947#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 12948#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 12949#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 12950#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 12951#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 12952#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 12953#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 12954#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 12885#true, 12886#false, 12887#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 12888#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 12889#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 12890#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 12891#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 12892#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 12893#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 12894#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 12895#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 12896#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 12897#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 12898#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 12899#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 12900#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 12901#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 12902#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 12903#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 12904#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 12905#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 12906#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 12907#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 12908#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 12909#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 12910#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 12911#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 12912#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 12913#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 12914#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 12915#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 12916#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 12917#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 12918#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 12919#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 12920#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 12921#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 12922#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 12923#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 12924#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 12925#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 12926#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 12927#(and (<= (select main_a main_x) 40) (not (= main_x main_y)))] [2018-07-23 13:52:40,284 INFO L134 CoverageAnalysis]: Checked inductivity of 2278 backedges. 0 proven. 2278 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:40,284 INFO L450 AbstractCegarLoop]: Interpolant automaton has 70 states [2018-07-23 13:52:40,285 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2018-07-23 13:52:40,285 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2415, Invalid=2415, Unknown=0, NotChecked=0, Total=4830 [2018-07-23 13:52:40,286 INFO L87 Difference]: Start difference. First operand 71 states and 71 transitions. Second operand 70 states. [2018-07-23 13:52:40,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:40,327 INFO L93 Difference]: Finished difference Result 74 states and 74 transitions. [2018-07-23 13:52:40,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2018-07-23 13:52:40,327 INFO L78 Accepts]: Start accepts. Automaton has 70 states. Word has length 70 [2018-07-23 13:52:40,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:40,328 INFO L225 Difference]: With dead ends: 74 [2018-07-23 13:52:40,328 INFO L226 Difference]: Without dead ends: 72 [2018-07-23 13:52:40,329 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=2415, Invalid=2415, Unknown=0, NotChecked=0, Total=4830 [2018-07-23 13:52:40,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-07-23 13:52:40,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2018-07-23 13:52:40,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-07-23 13:52:40,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 72 transitions. [2018-07-23 13:52:40,339 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 72 transitions. Word has length 70 [2018-07-23 13:52:40,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:40,339 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 72 transitions. [2018-07-23 13:52:40,339 INFO L472 AbstractCegarLoop]: Interpolant automaton has 70 states. [2018-07-23 13:52:40,339 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 72 transitions. [2018-07-23 13:52:40,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-07-23 13:52:40,340 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:40,340 INFO L357 BasicCegarLoop]: trace histogram [68, 1, 1, 1] [2018-07-23 13:52:40,340 INFO L414 AbstractCegarLoop]: === Iteration 69 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:40,340 INFO L82 PathProgramCache]: Analyzing trace with hash 976119520, now seen corresponding path program 68 times [2018-07-23 13:52:40,341 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:40,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:41,043 INFO L134 CoverageAnalysis]: Checked inductivity of 2346 backedges. 0 proven. 2346 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:41,044 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:41,044 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [70] total 70 [2018-07-23 13:52:41,044 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:41,044 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 13:52:41,045 INFO L185 omatonBuilderFactory]: Interpolants [13312#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 13313#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 13314#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 13315#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 13316#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 13317#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 13247#true, 13248#false, 13249#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 13250#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 13251#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 13252#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 13253#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 13254#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 13255#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 13256#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 13257#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 13258#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 13259#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 13260#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 13261#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 13262#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 13263#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 13264#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 13265#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 13266#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 13267#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 13268#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 13269#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 13270#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 13271#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 13272#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 13273#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 13274#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 13275#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 13276#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 13277#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 13278#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 13279#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 13280#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 13281#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 13282#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 13283#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 13284#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 13285#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 13286#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 13287#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 13288#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 13289#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 13290#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 13291#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 13292#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 13293#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 13294#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 13295#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 13296#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 13297#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 13298#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 13299#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 13300#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 13301#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 13302#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 13303#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 13304#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 13305#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 13306#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 13307#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 13308#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 13309#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 13310#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 13311#(and (not (= main_x main_y)) (<= (select main_a main_x) 62))] [2018-07-23 13:52:41,045 INFO L134 CoverageAnalysis]: Checked inductivity of 2346 backedges. 0 proven. 2346 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:41,045 INFO L450 AbstractCegarLoop]: Interpolant automaton has 71 states [2018-07-23 13:52:41,046 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2018-07-23 13:52:41,046 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2485, Invalid=2485, Unknown=0, NotChecked=0, Total=4970 [2018-07-23 13:52:41,046 INFO L87 Difference]: Start difference. First operand 72 states and 72 transitions. Second operand 71 states. [2018-07-23 13:52:41,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:41,099 INFO L93 Difference]: Finished difference Result 75 states and 75 transitions. [2018-07-23 13:52:41,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2018-07-23 13:52:41,099 INFO L78 Accepts]: Start accepts. Automaton has 71 states. Word has length 71 [2018-07-23 13:52:41,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:41,100 INFO L225 Difference]: With dead ends: 75 [2018-07-23 13:52:41,100 INFO L226 Difference]: Without dead ends: 73 [2018-07-23 13:52:41,100 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=2485, Invalid=2485, Unknown=0, NotChecked=0, Total=4970 [2018-07-23 13:52:41,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-07-23 13:52:41,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2018-07-23 13:52:41,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-07-23 13:52:41,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 73 transitions. [2018-07-23 13:52:41,105 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 73 transitions. Word has length 71 [2018-07-23 13:52:41,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:41,106 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 73 transitions. [2018-07-23 13:52:41,106 INFO L472 AbstractCegarLoop]: Interpolant automaton has 71 states. [2018-07-23 13:52:41,106 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 73 transitions. [2018-07-23 13:52:41,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-07-23 13:52:41,106 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:41,106 INFO L357 BasicCegarLoop]: trace histogram [69, 1, 1, 1] [2018-07-23 13:52:41,107 INFO L414 AbstractCegarLoop]: === Iteration 70 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:41,107 INFO L82 PathProgramCache]: Analyzing trace with hash 194930182, now seen corresponding path program 69 times [2018-07-23 13:52:41,107 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:41,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:41,868 INFO L134 CoverageAnalysis]: Checked inductivity of 2415 backedges. 0 proven. 2415 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:41,868 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:41,869 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [71] total 71 [2018-07-23 13:52:41,869 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:41,869 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 13:52:41,869 INFO L185 omatonBuilderFactory]: Interpolants [13614#true, 13615#false, 13616#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 13617#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 13618#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 13619#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 13620#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 13621#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 13622#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 13623#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 13624#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 13625#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 13626#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 13627#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 13628#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 13629#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 13630#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 13631#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 13632#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 13633#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 13634#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 13635#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 13636#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 13637#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 13638#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 13639#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 13640#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 13641#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 13642#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 13643#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 13644#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 13645#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 13646#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 13647#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 13648#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 13649#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 13650#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 13651#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 13652#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 13653#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 13654#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 13655#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 13656#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 13657#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 13658#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 13659#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 13660#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 13661#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 13662#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 13663#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 13664#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 13665#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 13666#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 13667#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 13668#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 13669#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 13670#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 13671#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 13672#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 13673#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 13674#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 13675#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 13676#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 13677#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 13678#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 13679#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 13680#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 13681#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 13682#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 13683#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 13684#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 13685#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:52:41,869 INFO L134 CoverageAnalysis]: Checked inductivity of 2415 backedges. 0 proven. 2415 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:41,870 INFO L450 AbstractCegarLoop]: Interpolant automaton has 72 states [2018-07-23 13:52:41,870 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2018-07-23 13:52:41,870 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2556, Invalid=2556, Unknown=0, NotChecked=0, Total=5112 [2018-07-23 13:52:41,870 INFO L87 Difference]: Start difference. First operand 73 states and 73 transitions. Second operand 72 states. [2018-07-23 13:52:41,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:41,933 INFO L93 Difference]: Finished difference Result 76 states and 76 transitions. [2018-07-23 13:52:41,933 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2018-07-23 13:52:41,933 INFO L78 Accepts]: Start accepts. Automaton has 72 states. Word has length 72 [2018-07-23 13:52:41,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:41,934 INFO L225 Difference]: With dead ends: 76 [2018-07-23 13:52:41,934 INFO L226 Difference]: Without dead ends: 74 [2018-07-23 13:52:41,934 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=2556, Invalid=2556, Unknown=0, NotChecked=0, Total=5112 [2018-07-23 13:52:41,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-07-23 13:52:41,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2018-07-23 13:52:41,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-07-23 13:52:41,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 74 transitions. [2018-07-23 13:52:41,939 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 74 transitions. Word has length 72 [2018-07-23 13:52:41,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:41,940 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 74 transitions. [2018-07-23 13:52:41,940 INFO L472 AbstractCegarLoop]: Interpolant automaton has 72 states. [2018-07-23 13:52:41,940 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 74 transitions. [2018-07-23 13:52:41,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-07-23 13:52:41,941 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:41,941 INFO L357 BasicCegarLoop]: trace histogram [70, 1, 1, 1] [2018-07-23 13:52:41,941 INFO L414 AbstractCegarLoop]: === Iteration 71 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:41,941 INFO L82 PathProgramCache]: Analyzing trace with hash 1747864480, now seen corresponding path program 70 times [2018-07-23 13:52:41,941 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:41,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:42,626 INFO L134 CoverageAnalysis]: Checked inductivity of 2485 backedges. 0 proven. 2485 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:42,626 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:42,626 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [72] total 72 [2018-07-23 13:52:42,627 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:42,627 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 13:52:42,627 INFO L185 omatonBuilderFactory]: Interpolants [13986#true, 13987#false, 13988#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 13989#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 13990#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 13991#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 13992#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 13993#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 13994#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 13995#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 13996#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 13997#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 13998#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 13999#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 14000#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 14001#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 14002#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 14003#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 14004#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 14005#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 14006#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 14007#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 14008#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 14009#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 14010#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 14011#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 14012#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 14013#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 14014#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 14015#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 14016#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 14017#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 14018#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 14019#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 14020#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 14021#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 14022#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 14023#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 14024#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 14025#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 14026#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 14027#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 14028#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 14029#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 14030#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 14031#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 14032#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 14033#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 14034#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 14035#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 14036#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 14037#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 14038#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 14039#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 14040#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 14041#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 14042#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 14043#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 14044#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 14045#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 14046#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 14047#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 14048#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 14049#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 14050#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 14051#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 14052#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 14053#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 14054#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 14055#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 14056#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 14057#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 14058#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:52:42,627 INFO L134 CoverageAnalysis]: Checked inductivity of 2485 backedges. 0 proven. 2485 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:42,627 INFO L450 AbstractCegarLoop]: Interpolant automaton has 73 states [2018-07-23 13:52:42,628 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2018-07-23 13:52:42,628 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2628, Invalid=2628, Unknown=0, NotChecked=0, Total=5256 [2018-07-23 13:52:42,628 INFO L87 Difference]: Start difference. First operand 74 states and 74 transitions. Second operand 73 states. [2018-07-23 13:52:42,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:42,696 INFO L93 Difference]: Finished difference Result 77 states and 77 transitions. [2018-07-23 13:52:42,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2018-07-23 13:52:42,696 INFO L78 Accepts]: Start accepts. Automaton has 73 states. Word has length 73 [2018-07-23 13:52:42,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:42,697 INFO L225 Difference]: With dead ends: 77 [2018-07-23 13:52:42,697 INFO L226 Difference]: Without dead ends: 75 [2018-07-23 13:52:42,698 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=2628, Invalid=2628, Unknown=0, NotChecked=0, Total=5256 [2018-07-23 13:52:42,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-07-23 13:52:42,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2018-07-23 13:52:42,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-07-23 13:52:42,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 75 transitions. [2018-07-23 13:52:42,703 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 75 transitions. Word has length 73 [2018-07-23 13:52:42,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:42,703 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 75 transitions. [2018-07-23 13:52:42,703 INFO L472 AbstractCegarLoop]: Interpolant automaton has 73 states. [2018-07-23 13:52:42,703 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 75 transitions. [2018-07-23 13:52:42,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-07-23 13:52:42,704 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:42,704 INFO L357 BasicCegarLoop]: trace histogram [71, 1, 1, 1] [2018-07-23 13:52:42,704 INFO L414 AbstractCegarLoop]: === Iteration 72 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:42,704 INFO L82 PathProgramCache]: Analyzing trace with hash -1650779834, now seen corresponding path program 71 times [2018-07-23 13:52:42,704 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:42,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:43,423 INFO L134 CoverageAnalysis]: Checked inductivity of 2556 backedges. 0 proven. 2556 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:43,424 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:43,424 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [73] total 73 [2018-07-23 13:52:43,424 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:43,424 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 13:52:43,424 INFO L185 omatonBuilderFactory]: Interpolants [14363#true, 14364#false, 14365#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 14366#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 14367#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 14368#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 14369#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 14370#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 14371#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 14372#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 14373#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 14374#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 14375#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 14376#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 14377#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 14378#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 14379#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 14380#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 14381#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 14382#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 14383#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 14384#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 14385#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 14386#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 14387#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 14388#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 14389#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 14390#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 14391#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 14392#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 14393#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 14394#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 14395#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 14396#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 14397#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 14398#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 14399#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 14400#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 14401#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 14402#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 14403#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 14404#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 14405#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 14406#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 14407#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 14408#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 14409#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 14410#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 14411#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 14412#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 14413#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 14414#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 14415#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 14416#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 14417#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 14418#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 14419#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 14420#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 14421#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 14422#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 14423#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 14424#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 14425#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 14426#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 14427#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 14428#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 14429#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 14430#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 14431#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 14432#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 14433#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 14434#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 14435#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 14436#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:52:43,425 INFO L134 CoverageAnalysis]: Checked inductivity of 2556 backedges. 0 proven. 2556 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:43,425 INFO L450 AbstractCegarLoop]: Interpolant automaton has 74 states [2018-07-23 13:52:43,426 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2018-07-23 13:52:43,426 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2701, Invalid=2701, Unknown=0, NotChecked=0, Total=5402 [2018-07-23 13:52:43,426 INFO L87 Difference]: Start difference. First operand 75 states and 75 transitions. Second operand 74 states. [2018-07-23 13:52:43,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:43,481 INFO L93 Difference]: Finished difference Result 78 states and 78 transitions. [2018-07-23 13:52:43,481 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2018-07-23 13:52:43,481 INFO L78 Accepts]: Start accepts. Automaton has 74 states. Word has length 74 [2018-07-23 13:52:43,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:43,482 INFO L225 Difference]: With dead ends: 78 [2018-07-23 13:52:43,482 INFO L226 Difference]: Without dead ends: 76 [2018-07-23 13:52:43,483 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=2701, Invalid=2701, Unknown=0, NotChecked=0, Total=5402 [2018-07-23 13:52:43,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-07-23 13:52:43,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2018-07-23 13:52:43,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2018-07-23 13:52:43,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 76 transitions. [2018-07-23 13:52:43,487 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 76 transitions. Word has length 74 [2018-07-23 13:52:43,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:43,487 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 76 transitions. [2018-07-23 13:52:43,487 INFO L472 AbstractCegarLoop]: Interpolant automaton has 74 states. [2018-07-23 13:52:43,487 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 76 transitions. [2018-07-23 13:52:43,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-07-23 13:52:43,487 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:43,488 INFO L357 BasicCegarLoop]: trace histogram [72, 1, 1, 1] [2018-07-23 13:52:43,488 INFO L414 AbstractCegarLoop]: === Iteration 73 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:43,488 INFO L82 PathProgramCache]: Analyzing trace with hash 365428832, now seen corresponding path program 72 times [2018-07-23 13:52:43,488 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:43,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:44,251 INFO L134 CoverageAnalysis]: Checked inductivity of 2628 backedges. 0 proven. 2628 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:44,251 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:44,251 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [74] total 74 [2018-07-23 13:52:44,251 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:44,251 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 13:52:44,252 INFO L185 omatonBuilderFactory]: Interpolants [14745#true, 14746#false, 14747#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 14748#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 14749#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 14750#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 14751#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 14752#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 14753#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 14754#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 14755#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 14756#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 14757#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 14758#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 14759#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 14760#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 14761#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 14762#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 14763#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 14764#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 14765#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 14766#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 14767#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 14768#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 14769#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 14770#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 14771#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 14772#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 14773#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 14774#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 14775#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 14776#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 14777#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 14778#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 14779#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 14780#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 14781#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 14782#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 14783#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 14784#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 14785#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 14786#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 14787#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 14788#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 14789#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 14790#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 14791#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 14792#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 14793#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 14794#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 14795#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 14796#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 14797#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 14798#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 14799#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 14800#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 14801#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 14802#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 14803#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 14804#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 14805#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 14806#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 14807#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 14808#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 14809#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 14810#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 14811#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 14812#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 14813#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 14814#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 14815#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 14816#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 14817#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 14818#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 14819#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:52:44,252 INFO L134 CoverageAnalysis]: Checked inductivity of 2628 backedges. 0 proven. 2628 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:44,252 INFO L450 AbstractCegarLoop]: Interpolant automaton has 75 states [2018-07-23 13:52:44,253 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2018-07-23 13:52:44,253 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2775, Invalid=2775, Unknown=0, NotChecked=0, Total=5550 [2018-07-23 13:52:44,254 INFO L87 Difference]: Start difference. First operand 76 states and 76 transitions. Second operand 75 states. [2018-07-23 13:52:44,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:44,327 INFO L93 Difference]: Finished difference Result 79 states and 79 transitions. [2018-07-23 13:52:44,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2018-07-23 13:52:44,327 INFO L78 Accepts]: Start accepts. Automaton has 75 states. Word has length 75 [2018-07-23 13:52:44,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:44,328 INFO L225 Difference]: With dead ends: 79 [2018-07-23 13:52:44,328 INFO L226 Difference]: Without dead ends: 77 [2018-07-23 13:52:44,328 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=2775, Invalid=2775, Unknown=0, NotChecked=0, Total=5550 [2018-07-23 13:52:44,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2018-07-23 13:52:44,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2018-07-23 13:52:44,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2018-07-23 13:52:44,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 77 transitions. [2018-07-23 13:52:44,333 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 77 transitions. Word has length 75 [2018-07-23 13:52:44,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:44,333 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 77 transitions. [2018-07-23 13:52:44,334 INFO L472 AbstractCegarLoop]: Interpolant automaton has 75 states. [2018-07-23 13:52:44,334 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 77 transitions. [2018-07-23 13:52:44,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-07-23 13:52:44,334 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:44,334 INFO L357 BasicCegarLoop]: trace histogram [73, 1, 1, 1] [2018-07-23 13:52:44,334 INFO L414 AbstractCegarLoop]: === Iteration 74 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:44,335 INFO L82 PathProgramCache]: Analyzing trace with hash -1556611962, now seen corresponding path program 73 times [2018-07-23 13:52:44,335 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:44,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:45,040 INFO L134 CoverageAnalysis]: Checked inductivity of 2701 backedges. 0 proven. 2701 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:45,040 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:45,040 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [75] total 75 [2018-07-23 13:52:45,041 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:45,041 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 13:52:45,041 INFO L185 omatonBuilderFactory]: Interpolants [15132#true, 15133#false, 15134#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 15135#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 15136#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 15137#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 15138#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 15139#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 15140#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 15141#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 15142#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 15143#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 15144#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 15145#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 15146#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 15147#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 15148#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 15149#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 15150#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 15151#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 15152#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 15153#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 15154#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 15155#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 15156#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 15157#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 15158#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 15159#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 15160#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 15161#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 15162#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 15163#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 15164#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 15165#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 15166#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 15167#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 15168#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 15169#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 15170#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 15171#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 15172#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 15173#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 15174#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 15175#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 15176#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 15177#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 15178#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 15179#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 15180#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 15181#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 15182#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 15183#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 15184#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 15185#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 15186#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 15187#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 15188#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 15189#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 15190#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 15191#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 15192#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 15193#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 15194#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 15195#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 15196#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 15197#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 15198#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 15199#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 15200#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 15201#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 15202#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 15203#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 15204#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 15205#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 15206#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 15207#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:52:45,041 INFO L134 CoverageAnalysis]: Checked inductivity of 2701 backedges. 0 proven. 2701 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:45,042 INFO L450 AbstractCegarLoop]: Interpolant automaton has 76 states [2018-07-23 13:52:45,042 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2018-07-23 13:52:45,042 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2850, Invalid=2850, Unknown=0, NotChecked=0, Total=5700 [2018-07-23 13:52:45,042 INFO L87 Difference]: Start difference. First operand 77 states and 77 transitions. Second operand 76 states. [2018-07-23 13:52:45,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:45,103 INFO L93 Difference]: Finished difference Result 80 states and 80 transitions. [2018-07-23 13:52:45,103 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2018-07-23 13:52:45,103 INFO L78 Accepts]: Start accepts. Automaton has 76 states. Word has length 76 [2018-07-23 13:52:45,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:45,104 INFO L225 Difference]: With dead ends: 80 [2018-07-23 13:52:45,104 INFO L226 Difference]: Without dead ends: 78 [2018-07-23 13:52:45,105 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=2850, Invalid=2850, Unknown=0, NotChecked=0, Total=5700 [2018-07-23 13:52:45,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2018-07-23 13:52:45,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2018-07-23 13:52:45,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2018-07-23 13:52:45,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 78 transitions. [2018-07-23 13:52:45,110 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 78 transitions. Word has length 76 [2018-07-23 13:52:45,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:45,111 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 78 transitions. [2018-07-23 13:52:45,111 INFO L472 AbstractCegarLoop]: Interpolant automaton has 76 states. [2018-07-23 13:52:45,111 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 78 transitions. [2018-07-23 13:52:45,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-07-23 13:52:45,111 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:45,111 INFO L357 BasicCegarLoop]: trace histogram [74, 1, 1, 1] [2018-07-23 13:52:45,112 INFO L414 AbstractCegarLoop]: === Iteration 75 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:45,112 INFO L82 PathProgramCache]: Analyzing trace with hash -1010334432, now seen corresponding path program 74 times [2018-07-23 13:52:45,112 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:45,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:46,011 INFO L134 CoverageAnalysis]: Checked inductivity of 2775 backedges. 0 proven. 2775 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:46,011 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:46,011 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [76] total 76 [2018-07-23 13:52:46,012 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:46,012 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 13:52:46,012 INFO L185 omatonBuilderFactory]: Interpolants [15524#true, 15525#false, 15526#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 15527#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 15528#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 15529#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 15530#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 15531#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 15532#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 15533#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 15534#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 15535#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 15536#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 15537#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 15538#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 15539#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 15540#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 15541#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 15542#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 15543#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 15544#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 15545#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 15546#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 15547#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 15548#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 15549#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 15550#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 15551#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 15552#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 15553#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 15554#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 15555#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 15556#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 15557#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 15558#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 15559#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 15560#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 15561#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 15562#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 15563#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 15564#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 15565#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 15566#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 15567#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 15568#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 15569#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 15570#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 15571#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 15572#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 15573#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 15574#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 15575#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 15576#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 15577#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 15578#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 15579#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 15580#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 15581#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 15582#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 15583#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 15584#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 15585#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 15586#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 15587#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 15588#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 15589#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 15590#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 15591#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 15592#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 15593#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 15594#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 15595#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 15596#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 15597#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 15598#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 15599#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 15600#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:52:46,012 INFO L134 CoverageAnalysis]: Checked inductivity of 2775 backedges. 0 proven. 2775 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:46,013 INFO L450 AbstractCegarLoop]: Interpolant automaton has 77 states [2018-07-23 13:52:46,013 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2018-07-23 13:52:46,013 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2926, Invalid=2926, Unknown=0, NotChecked=0, Total=5852 [2018-07-23 13:52:46,014 INFO L87 Difference]: Start difference. First operand 78 states and 78 transitions. Second operand 77 states. [2018-07-23 13:52:46,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:46,068 INFO L93 Difference]: Finished difference Result 81 states and 81 transitions. [2018-07-23 13:52:46,068 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2018-07-23 13:52:46,068 INFO L78 Accepts]: Start accepts. Automaton has 77 states. Word has length 77 [2018-07-23 13:52:46,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:46,069 INFO L225 Difference]: With dead ends: 81 [2018-07-23 13:52:46,069 INFO L226 Difference]: Without dead ends: 79 [2018-07-23 13:52:46,069 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=2926, Invalid=2926, Unknown=0, NotChecked=0, Total=5852 [2018-07-23 13:52:46,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2018-07-23 13:52:46,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2018-07-23 13:52:46,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-07-23 13:52:46,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 79 transitions. [2018-07-23 13:52:46,074 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 79 transitions. Word has length 77 [2018-07-23 13:52:46,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:46,075 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 79 transitions. [2018-07-23 13:52:46,075 INFO L472 AbstractCegarLoop]: Interpolant automaton has 77 states. [2018-07-23 13:52:46,075 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 79 transitions. [2018-07-23 13:52:46,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-07-23 13:52:46,075 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:46,075 INFO L357 BasicCegarLoop]: trace histogram [75, 1, 1, 1] [2018-07-23 13:52:46,075 INFO L414 AbstractCegarLoop]: === Iteration 76 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:46,075 INFO L82 PathProgramCache]: Analyzing trace with hash -1255600186, now seen corresponding path program 75 times [2018-07-23 13:52:46,076 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:46,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:46,814 INFO L134 CoverageAnalysis]: Checked inductivity of 2850 backedges. 0 proven. 2850 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:46,814 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:46,815 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [77] total 77 [2018-07-23 13:52:46,815 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:46,815 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 13:52:46,815 INFO L185 omatonBuilderFactory]: Interpolants [15921#true, 15922#false, 15923#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 15924#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 15925#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 15926#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 15927#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 15928#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 15929#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 15930#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 15931#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 15932#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 15933#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 15934#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 15935#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 15936#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 15937#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 15938#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 15939#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 15940#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 15941#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 15942#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 15943#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 15944#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 15945#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 15946#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 15947#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 15948#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 15949#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 15950#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 15951#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 15952#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 15953#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 15954#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 15955#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 15956#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 15957#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 15958#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 15959#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 15960#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 15961#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 15962#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 15963#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 15964#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 15965#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 15966#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 15967#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 15968#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 15969#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 15970#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 15971#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 15972#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 15973#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 15974#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 15975#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 15976#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 15977#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 15978#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 15979#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 15980#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 15981#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 15982#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 15983#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 15984#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 15985#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 15986#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 15987#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 15988#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 15989#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 15990#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 15991#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 15992#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 15993#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 15994#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 15995#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 15996#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 15997#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 15998#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:52:46,816 INFO L134 CoverageAnalysis]: Checked inductivity of 2850 backedges. 0 proven. 2850 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:46,816 INFO L450 AbstractCegarLoop]: Interpolant automaton has 78 states [2018-07-23 13:52:46,817 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2018-07-23 13:52:46,817 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3003, Invalid=3003, Unknown=0, NotChecked=0, Total=6006 [2018-07-23 13:52:46,817 INFO L87 Difference]: Start difference. First operand 79 states and 79 transitions. Second operand 78 states. [2018-07-23 13:52:46,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:46,882 INFO L93 Difference]: Finished difference Result 82 states and 82 transitions. [2018-07-23 13:52:46,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2018-07-23 13:52:46,882 INFO L78 Accepts]: Start accepts. Automaton has 78 states. Word has length 78 [2018-07-23 13:52:46,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:46,883 INFO L225 Difference]: With dead ends: 82 [2018-07-23 13:52:46,883 INFO L226 Difference]: Without dead ends: 80 [2018-07-23 13:52:46,884 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=3003, Invalid=3003, Unknown=0, NotChecked=0, Total=6006 [2018-07-23 13:52:46,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2018-07-23 13:52:46,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2018-07-23 13:52:46,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2018-07-23 13:52:46,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 80 transitions. [2018-07-23 13:52:46,889 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 80 transitions. Word has length 78 [2018-07-23 13:52:46,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:46,890 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 80 transitions. [2018-07-23 13:52:46,890 INFO L472 AbstractCegarLoop]: Interpolant automaton has 78 states. [2018-07-23 13:52:46,890 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 80 transitions. [2018-07-23 13:52:46,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-07-23 13:52:46,890 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:46,890 INFO L357 BasicCegarLoop]: trace histogram [76, 1, 1, 1] [2018-07-23 13:52:46,890 INFO L414 AbstractCegarLoop]: === Iteration 77 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:46,891 INFO L82 PathProgramCache]: Analyzing trace with hash -268903968, now seen corresponding path program 76 times [2018-07-23 13:52:46,891 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:46,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:47,857 INFO L134 CoverageAnalysis]: Checked inductivity of 2926 backedges. 0 proven. 2926 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:47,857 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:47,857 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [78] total 78 [2018-07-23 13:52:47,857 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:47,857 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 13:52:47,858 INFO L185 omatonBuilderFactory]: Interpolants [16384#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 16385#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 16386#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 16387#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 16388#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 16389#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 16390#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 16391#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 16392#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 16393#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 16394#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 16395#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 16396#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 16397#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 16398#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 16399#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 16400#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 16401#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 16323#true, 16324#false, 16325#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 16326#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 16327#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 16328#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 16329#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 16330#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 16331#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 16332#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 16333#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 16334#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 16335#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 16336#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 16337#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 16338#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 16339#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 16340#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 16341#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 16342#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 16343#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 16344#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 16345#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 16346#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 16347#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 16348#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 16349#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 16350#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 16351#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 16352#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 16353#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 16354#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 16355#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 16356#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 16357#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 16358#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 16359#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 16360#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 16361#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 16362#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 16363#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 16364#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 16365#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 16366#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 16367#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 16368#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 16369#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 16370#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 16371#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 16372#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 16373#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 16374#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 16375#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 16376#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 16377#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 16378#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 16379#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 16380#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 16381#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 16382#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 16383#(and (<= (select main_a main_x) 58) (not (= main_x main_y)))] [2018-07-23 13:52:47,858 INFO L134 CoverageAnalysis]: Checked inductivity of 2926 backedges. 0 proven. 2926 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:47,858 INFO L450 AbstractCegarLoop]: Interpolant automaton has 79 states [2018-07-23 13:52:47,859 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2018-07-23 13:52:47,859 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3081, Invalid=3081, Unknown=0, NotChecked=0, Total=6162 [2018-07-23 13:52:47,859 INFO L87 Difference]: Start difference. First operand 80 states and 80 transitions. Second operand 79 states. [2018-07-23 13:52:47,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:47,902 INFO L93 Difference]: Finished difference Result 83 states and 83 transitions. [2018-07-23 13:52:47,903 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2018-07-23 13:52:47,903 INFO L78 Accepts]: Start accepts. Automaton has 79 states. Word has length 79 [2018-07-23 13:52:47,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:47,904 INFO L225 Difference]: With dead ends: 83 [2018-07-23 13:52:47,904 INFO L226 Difference]: Without dead ends: 81 [2018-07-23 13:52:47,904 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=3081, Invalid=3081, Unknown=0, NotChecked=0, Total=6162 [2018-07-23 13:52:47,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2018-07-23 13:52:47,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2018-07-23 13:52:47,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2018-07-23 13:52:47,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 81 transitions. [2018-07-23 13:52:47,910 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 81 transitions. Word has length 79 [2018-07-23 13:52:47,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:47,910 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 81 transitions. [2018-07-23 13:52:47,910 INFO L472 AbstractCegarLoop]: Interpolant automaton has 79 states. [2018-07-23 13:52:47,910 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 81 transitions. [2018-07-23 13:52:47,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-07-23 13:52:47,911 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:47,911 INFO L357 BasicCegarLoop]: trace histogram [77, 1, 1, 1] [2018-07-23 13:52:47,911 INFO L414 AbstractCegarLoop]: === Iteration 78 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:47,911 INFO L82 PathProgramCache]: Analyzing trace with hash 253907718, now seen corresponding path program 77 times [2018-07-23 13:52:47,911 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:47,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:48,736 INFO L134 CoverageAnalysis]: Checked inductivity of 3003 backedges. 0 proven. 3003 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:48,736 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:48,736 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [79] total 79 [2018-07-23 13:52:48,737 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:48,737 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 13:52:48,737 INFO L185 omatonBuilderFactory]: Interpolants [16768#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 16769#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 16770#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 16771#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 16772#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 16773#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 16774#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 16775#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 16776#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 16777#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 16778#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 16779#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 16780#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 16781#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 16782#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 16783#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 16784#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 16785#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 16786#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 16787#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 16788#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 16789#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 16790#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 16791#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 16792#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 16793#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 16794#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 16795#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 16796#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 16797#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 16798#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 16799#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 16800#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 16801#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 16802#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 16803#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 16804#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 16805#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 16806#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 16807#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 16808#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 16809#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 16730#true, 16731#false, 16732#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 16733#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 16734#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 16735#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 16736#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 16737#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 16738#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 16739#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 16740#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 16741#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 16742#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 16743#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 16744#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 16745#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 16746#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 16747#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 16748#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 16749#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 16750#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 16751#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 16752#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 16753#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 16754#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 16755#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 16756#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 16757#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 16758#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 16759#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 16760#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 16761#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 16762#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 16763#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 16764#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 16765#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 16766#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 16767#(and (<= (select main_a main_x) 35) (not (= main_x main_y)))] [2018-07-23 13:52:48,738 INFO L134 CoverageAnalysis]: Checked inductivity of 3003 backedges. 0 proven. 3003 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:48,738 INFO L450 AbstractCegarLoop]: Interpolant automaton has 80 states [2018-07-23 13:52:48,739 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2018-07-23 13:52:48,739 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3160, Invalid=3160, Unknown=0, NotChecked=0, Total=6320 [2018-07-23 13:52:48,739 INFO L87 Difference]: Start difference. First operand 81 states and 81 transitions. Second operand 80 states. [2018-07-23 13:52:48,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:48,781 INFO L93 Difference]: Finished difference Result 84 states and 84 transitions. [2018-07-23 13:52:48,781 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2018-07-23 13:52:48,781 INFO L78 Accepts]: Start accepts. Automaton has 80 states. Word has length 80 [2018-07-23 13:52:48,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:48,781 INFO L225 Difference]: With dead ends: 84 [2018-07-23 13:52:48,782 INFO L226 Difference]: Without dead ends: 82 [2018-07-23 13:52:48,782 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=3160, Invalid=3160, Unknown=0, NotChecked=0, Total=6320 [2018-07-23 13:52:48,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2018-07-23 13:52:48,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2018-07-23 13:52:48,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-07-23 13:52:48,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 82 transitions. [2018-07-23 13:52:48,788 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 82 transitions. Word has length 80 [2018-07-23 13:52:48,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:48,788 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 82 transitions. [2018-07-23 13:52:48,788 INFO L472 AbstractCegarLoop]: Interpolant automaton has 80 states. [2018-07-23 13:52:48,788 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 82 transitions. [2018-07-23 13:52:48,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-07-23 13:52:48,789 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:48,789 INFO L357 BasicCegarLoop]: trace histogram [78, 1, 1, 1] [2018-07-23 13:52:48,789 INFO L414 AbstractCegarLoop]: === Iteration 79 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:48,789 INFO L82 PathProgramCache]: Analyzing trace with hash -718799200, now seen corresponding path program 78 times [2018-07-23 13:52:48,789 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:48,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:49,875 INFO L134 CoverageAnalysis]: Checked inductivity of 3081 backedges. 0 proven. 3081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:49,875 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:49,875 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [80] total 80 [2018-07-23 13:52:49,876 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:49,876 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 13:52:49,876 INFO L185 omatonBuilderFactory]: Interpolants [17152#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 17153#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 17154#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 17155#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 17156#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 17157#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 17158#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 17159#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 17160#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 17161#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 17162#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 17163#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 17164#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 17165#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 17166#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 17167#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 17168#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 17169#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 17170#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 17171#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 17172#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 17173#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 17174#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 17175#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 17176#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 17177#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 17178#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 17179#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 17180#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 17181#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 17182#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 17183#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 17184#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 17185#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 17186#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 17187#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 17188#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 17189#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 17190#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 17191#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 17192#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 17193#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 17194#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 17195#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 17196#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 17197#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 17198#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 17199#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 17200#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 17201#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 17202#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 17203#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 17204#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 17205#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 17206#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 17207#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 17208#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 17209#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 17210#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 17211#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 17212#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 17213#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 17214#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 17215#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 17216#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 17217#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 17218#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 17219#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 17220#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 17221#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 17222#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 17142#true, 17143#false, 17144#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 17145#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 17146#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 17147#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 17148#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 17149#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 17150#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 17151#(and (<= (select main_a main_x) 7) (not (= main_x main_y)))] [2018-07-23 13:52:49,876 INFO L134 CoverageAnalysis]: Checked inductivity of 3081 backedges. 0 proven. 3081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:49,876 INFO L450 AbstractCegarLoop]: Interpolant automaton has 81 states [2018-07-23 13:52:49,877 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2018-07-23 13:52:49,877 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3240, Invalid=3240, Unknown=0, NotChecked=0, Total=6480 [2018-07-23 13:52:49,878 INFO L87 Difference]: Start difference. First operand 82 states and 82 transitions. Second operand 81 states. [2018-07-23 13:52:49,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:49,947 INFO L93 Difference]: Finished difference Result 85 states and 85 transitions. [2018-07-23 13:52:49,947 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2018-07-23 13:52:49,947 INFO L78 Accepts]: Start accepts. Automaton has 81 states. Word has length 81 [2018-07-23 13:52:49,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:49,948 INFO L225 Difference]: With dead ends: 85 [2018-07-23 13:52:49,948 INFO L226 Difference]: Without dead ends: 83 [2018-07-23 13:52:49,948 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=3240, Invalid=3240, Unknown=0, NotChecked=0, Total=6480 [2018-07-23 13:52:49,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2018-07-23 13:52:49,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2018-07-23 13:52:49,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2018-07-23 13:52:49,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 83 transitions. [2018-07-23 13:52:49,952 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 83 transitions. Word has length 81 [2018-07-23 13:52:49,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:49,952 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 83 transitions. [2018-07-23 13:52:49,953 INFO L472 AbstractCegarLoop]: Interpolant automaton has 81 states. [2018-07-23 13:52:49,953 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 83 transitions. [2018-07-23 13:52:49,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-07-23 13:52:49,953 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:49,953 INFO L357 BasicCegarLoop]: trace histogram [79, 1, 1, 1] [2018-07-23 13:52:49,953 INFO L414 AbstractCegarLoop]: === Iteration 80 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:49,953 INFO L82 PathProgramCache]: Analyzing trace with hash -807942586, now seen corresponding path program 79 times [2018-07-23 13:52:49,953 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:50,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:50,773 INFO L134 CoverageAnalysis]: Checked inductivity of 3160 backedges. 0 proven. 3160 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:50,774 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:50,774 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [81] total 81 [2018-07-23 13:52:50,774 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:50,774 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 13:52:50,774 INFO L185 omatonBuilderFactory]: Interpolants [17559#true, 17560#false, 17561#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 17562#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 17563#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 17564#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 17565#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 17566#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 17567#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 17568#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 17569#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 17570#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 17571#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 17572#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 17573#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 17574#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 17575#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 17576#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 17577#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 17578#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 17579#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 17580#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 17581#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 17582#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 17583#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 17584#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 17585#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 17586#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 17587#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 17588#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 17589#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 17590#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 17591#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 17592#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 17593#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 17594#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 17595#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 17596#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 17597#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 17598#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 17599#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 17600#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 17601#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 17602#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 17603#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 17604#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 17605#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 17606#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 17607#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 17608#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 17609#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 17610#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 17611#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 17612#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 17613#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 17614#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 17615#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 17616#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 17617#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 17618#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 17619#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 17620#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 17621#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 17622#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 17623#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 17624#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 17625#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 17626#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 17627#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 17628#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 17629#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 17630#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 17631#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 17632#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 17633#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 17634#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 17635#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 17636#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 17637#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 17638#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 17639#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 17640#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:52:50,775 INFO L134 CoverageAnalysis]: Checked inductivity of 3160 backedges. 0 proven. 3160 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:50,775 INFO L450 AbstractCegarLoop]: Interpolant automaton has 82 states [2018-07-23 13:52:50,775 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2018-07-23 13:52:50,776 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3321, Invalid=3321, Unknown=0, NotChecked=0, Total=6642 [2018-07-23 13:52:50,776 INFO L87 Difference]: Start difference. First operand 83 states and 83 transitions. Second operand 82 states. [2018-07-23 13:52:50,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:50,851 INFO L93 Difference]: Finished difference Result 86 states and 86 transitions. [2018-07-23 13:52:50,851 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2018-07-23 13:52:50,851 INFO L78 Accepts]: Start accepts. Automaton has 82 states. Word has length 82 [2018-07-23 13:52:50,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:50,852 INFO L225 Difference]: With dead ends: 86 [2018-07-23 13:52:50,852 INFO L226 Difference]: Without dead ends: 84 [2018-07-23 13:52:50,852 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=3321, Invalid=3321, Unknown=0, NotChecked=0, Total=6642 [2018-07-23 13:52:50,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2018-07-23 13:52:50,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2018-07-23 13:52:50,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2018-07-23 13:52:50,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 84 transitions. [2018-07-23 13:52:50,858 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 84 transitions. Word has length 82 [2018-07-23 13:52:50,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:50,858 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 84 transitions. [2018-07-23 13:52:50,858 INFO L472 AbstractCegarLoop]: Interpolant automaton has 82 states. [2018-07-23 13:52:50,858 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 84 transitions. [2018-07-23 13:52:50,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-07-23 13:52:50,859 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:50,859 INFO L357 BasicCegarLoop]: trace histogram [80, 1, 1, 1] [2018-07-23 13:52:50,859 INFO L414 AbstractCegarLoop]: === Iteration 81 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:50,859 INFO L82 PathProgramCache]: Analyzing trace with hash 723579744, now seen corresponding path program 80 times [2018-07-23 13:52:50,859 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:50,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:51,771 INFO L134 CoverageAnalysis]: Checked inductivity of 3240 backedges. 0 proven. 3240 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:51,771 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:51,771 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [82] total 82 [2018-07-23 13:52:51,771 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:51,772 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 13:52:51,772 INFO L185 omatonBuilderFactory]: Interpolants [18048#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 18049#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 18050#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 18051#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 18052#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 18053#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 18054#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 18055#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 18056#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 18057#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 18058#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 18059#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 18060#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 18061#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 18062#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 18063#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 17981#true, 17982#false, 17983#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 17984#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 17985#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 17986#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 17987#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 17988#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 17989#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 17990#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 17991#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 17992#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 17993#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 17994#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 17995#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 17996#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 17997#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 17998#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 17999#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 18000#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 18001#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 18002#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 18003#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 18004#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 18005#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 18006#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 18007#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 18008#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 18009#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 18010#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 18011#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 18012#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 18013#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 18014#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 18015#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 18016#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 18017#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 18018#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 18019#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 18020#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 18021#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 18022#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 18023#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 18024#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 18025#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 18026#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 18027#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 18028#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 18029#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 18030#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 18031#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 18032#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 18033#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 18034#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 18035#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 18036#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 18037#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 18038#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 18039#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 18040#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 18041#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 18042#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 18043#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 18044#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 18045#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 18046#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 18047#(and (not (= main_x main_y)) (<= (select main_a main_x) 64))] [2018-07-23 13:52:51,772 INFO L134 CoverageAnalysis]: Checked inductivity of 3240 backedges. 0 proven. 3240 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:51,772 INFO L450 AbstractCegarLoop]: Interpolant automaton has 83 states [2018-07-23 13:52:51,773 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2018-07-23 13:52:51,773 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3403, Invalid=3403, Unknown=0, NotChecked=0, Total=6806 [2018-07-23 13:52:51,773 INFO L87 Difference]: Start difference. First operand 84 states and 84 transitions. Second operand 83 states. [2018-07-23 13:52:51,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:51,818 INFO L93 Difference]: Finished difference Result 87 states and 87 transitions. [2018-07-23 13:52:51,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2018-07-23 13:52:51,818 INFO L78 Accepts]: Start accepts. Automaton has 83 states. Word has length 83 [2018-07-23 13:52:51,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:51,819 INFO L225 Difference]: With dead ends: 87 [2018-07-23 13:52:51,819 INFO L226 Difference]: Without dead ends: 85 [2018-07-23 13:52:51,820 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=3403, Invalid=3403, Unknown=0, NotChecked=0, Total=6806 [2018-07-23 13:52:51,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-07-23 13:52:51,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2018-07-23 13:52:51,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-07-23 13:52:51,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 85 transitions. [2018-07-23 13:52:51,825 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 85 transitions. Word has length 83 [2018-07-23 13:52:51,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:51,825 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 85 transitions. [2018-07-23 13:52:51,825 INFO L472 AbstractCegarLoop]: Interpolant automaton has 83 states. [2018-07-23 13:52:51,825 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 85 transitions. [2018-07-23 13:52:51,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-07-23 13:52:51,826 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:51,826 INFO L357 BasicCegarLoop]: trace histogram [81, 1, 1, 1] [2018-07-23 13:52:51,826 INFO L414 AbstractCegarLoop]: === Iteration 82 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:51,826 INFO L82 PathProgramCache]: Analyzing trace with hash 956131718, now seen corresponding path program 81 times [2018-07-23 13:52:51,826 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:51,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:52,612 INFO L134 CoverageAnalysis]: Checked inductivity of 3321 backedges. 0 proven. 3321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:52,612 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:52,613 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [83] total 83 [2018-07-23 13:52:52,613 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:52,613 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 13:52:52,613 INFO L185 omatonBuilderFactory]: Interpolants [18432#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 18433#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 18434#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 18435#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 18436#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 18437#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 18438#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 18439#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 18440#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 18441#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 18442#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 18443#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 18444#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 18445#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 18446#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 18447#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 18448#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 18449#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 18450#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 18451#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 18452#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 18453#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 18454#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 18455#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 18456#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 18457#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 18458#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 18459#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 18460#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 18461#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 18462#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 18463#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 18464#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 18465#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 18466#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 18467#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 18468#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 18469#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 18470#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 18471#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 18472#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 18473#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 18474#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 18475#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 18476#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 18477#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 18478#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 18479#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 18480#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 18481#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 18482#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 18483#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 18484#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 18485#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 18486#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 18487#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 18488#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 18489#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 18490#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 18491#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 18408#true, 18409#false, 18410#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 18411#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 18412#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 18413#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 18414#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 18415#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 18416#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 18417#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 18418#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 18419#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 18420#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 18421#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 18422#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 18423#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 18424#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 18425#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 18426#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 18427#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 18428#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 18429#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 18430#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 18431#(and (<= (select main_a main_x) 21) (not (= main_x main_y)))] [2018-07-23 13:52:52,614 INFO L134 CoverageAnalysis]: Checked inductivity of 3321 backedges. 0 proven. 3321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:52,614 INFO L450 AbstractCegarLoop]: Interpolant automaton has 84 states [2018-07-23 13:52:52,614 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2018-07-23 13:52:52,615 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3486, Invalid=3486, Unknown=0, NotChecked=0, Total=6972 [2018-07-23 13:52:52,615 INFO L87 Difference]: Start difference. First operand 85 states and 85 transitions. Second operand 84 states. [2018-07-23 13:52:52,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:52,681 INFO L93 Difference]: Finished difference Result 88 states and 88 transitions. [2018-07-23 13:52:52,681 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2018-07-23 13:52:52,681 INFO L78 Accepts]: Start accepts. Automaton has 84 states. Word has length 84 [2018-07-23 13:52:52,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:52,682 INFO L225 Difference]: With dead ends: 88 [2018-07-23 13:52:52,682 INFO L226 Difference]: Without dead ends: 86 [2018-07-23 13:52:52,683 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=3486, Invalid=3486, Unknown=0, NotChecked=0, Total=6972 [2018-07-23 13:52:52,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2018-07-23 13:52:52,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2018-07-23 13:52:52,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2018-07-23 13:52:52,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 86 transitions. [2018-07-23 13:52:52,688 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 86 transitions. Word has length 84 [2018-07-23 13:52:52,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:52,688 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 86 transitions. [2018-07-23 13:52:52,688 INFO L472 AbstractCegarLoop]: Interpolant automaton has 84 states. [2018-07-23 13:52:52,688 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 86 transitions. [2018-07-23 13:52:52,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-07-23 13:52:52,688 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:52,688 INFO L357 BasicCegarLoop]: trace histogram [82, 1, 1, 1] [2018-07-23 13:52:52,689 INFO L414 AbstractCegarLoop]: === Iteration 83 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:52,689 INFO L82 PathProgramCache]: Analyzing trace with hash -424691680, now seen corresponding path program 82 times [2018-07-23 13:52:52,689 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:52,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:53,549 INFO L134 CoverageAnalysis]: Checked inductivity of 3403 backedges. 0 proven. 3403 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:53,550 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:53,550 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [84] total 84 [2018-07-23 13:52:53,550 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:53,550 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 13:52:53,550 INFO L185 omatonBuilderFactory]: Interpolants [18840#true, 18841#false, 18842#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 18843#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 18844#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 18845#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 18846#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 18847#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 18848#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 18849#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 18850#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 18851#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 18852#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 18853#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 18854#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 18855#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 18856#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 18857#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 18858#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 18859#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 18860#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 18861#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 18862#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 18863#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 18864#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 18865#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 18866#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 18867#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 18868#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 18869#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 18870#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 18871#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 18872#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 18873#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 18874#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 18875#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 18876#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 18877#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 18878#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 18879#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 18880#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 18881#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 18882#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 18883#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 18884#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 18885#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 18886#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 18887#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 18888#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 18889#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 18890#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 18891#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 18892#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 18893#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 18894#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 18895#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 18896#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 18897#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 18898#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 18899#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 18900#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 18901#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 18902#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 18903#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 18904#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 18905#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 18906#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 18907#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 18908#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 18909#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 18910#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 18911#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 18912#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 18913#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 18914#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 18915#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 18916#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 18917#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 18918#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 18919#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 18920#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 18921#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 18922#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 18923#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 18924#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:52:53,551 INFO L134 CoverageAnalysis]: Checked inductivity of 3403 backedges. 0 proven. 3403 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:53,551 INFO L450 AbstractCegarLoop]: Interpolant automaton has 85 states [2018-07-23 13:52:53,552 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2018-07-23 13:52:53,552 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3570, Invalid=3570, Unknown=0, NotChecked=0, Total=7140 [2018-07-23 13:52:53,553 INFO L87 Difference]: Start difference. First operand 86 states and 86 transitions. Second operand 85 states. [2018-07-23 13:52:53,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:53,632 INFO L93 Difference]: Finished difference Result 89 states and 89 transitions. [2018-07-23 13:52:53,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2018-07-23 13:52:53,632 INFO L78 Accepts]: Start accepts. Automaton has 85 states. Word has length 85 [2018-07-23 13:52:53,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:53,633 INFO L225 Difference]: With dead ends: 89 [2018-07-23 13:52:53,633 INFO L226 Difference]: Without dead ends: 87 [2018-07-23 13:52:53,634 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=3570, Invalid=3570, Unknown=0, NotChecked=0, Total=7140 [2018-07-23 13:52:53,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2018-07-23 13:52:53,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2018-07-23 13:52:53,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2018-07-23 13:52:53,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 87 transitions. [2018-07-23 13:52:53,639 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 87 transitions. Word has length 85 [2018-07-23 13:52:53,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:53,639 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 87 transitions. [2018-07-23 13:52:53,639 INFO L472 AbstractCegarLoop]: Interpolant automaton has 85 states. [2018-07-23 13:52:53,639 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 87 transitions. [2018-07-23 13:52:53,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-07-23 13:52:53,640 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:53,640 INFO L357 BasicCegarLoop]: trace histogram [83, 1, 1, 1] [2018-07-23 13:52:53,640 INFO L414 AbstractCegarLoop]: === Iteration 84 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:53,640 INFO L82 PathProgramCache]: Analyzing trace with hash -280544058, now seen corresponding path program 83 times [2018-07-23 13:52:53,640 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:53,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:54,614 INFO L134 CoverageAnalysis]: Checked inductivity of 3486 backedges. 0 proven. 3486 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:54,615 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:54,615 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [85] total 85 [2018-07-23 13:52:54,615 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:54,616 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 13:52:54,616 INFO L185 omatonBuilderFactory]: Interpolants [19328#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 19329#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 19330#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 19331#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 19332#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 19333#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 19334#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 19335#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 19336#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 19337#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 19338#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 19339#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 19340#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 19341#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 19342#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 19343#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 19344#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 19345#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 19346#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 19347#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 19348#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 19349#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 19350#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 19351#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 19352#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 19353#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 19354#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 19355#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 19356#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 19357#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 19358#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 19359#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 19360#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 19361#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 19362#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 19277#true, 19278#false, 19279#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 19280#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 19281#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 19282#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 19283#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 19284#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 19285#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 19286#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 19287#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 19288#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 19289#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 19290#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 19291#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 19292#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 19293#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 19294#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 19295#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 19296#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 19297#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 19298#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 19299#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 19300#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 19301#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 19302#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 19303#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 19304#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 19305#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 19306#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 19307#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 19308#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 19309#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 19310#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 19311#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 19312#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 19313#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 19314#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 19315#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 19316#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 19317#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 19318#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 19319#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 19320#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 19321#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 19322#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 19323#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 19324#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 19325#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 19326#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 19327#(and (<= (select main_a main_x) 48) (not (= main_x main_y)))] [2018-07-23 13:52:54,616 INFO L134 CoverageAnalysis]: Checked inductivity of 3486 backedges. 0 proven. 3486 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:54,617 INFO L450 AbstractCegarLoop]: Interpolant automaton has 86 states [2018-07-23 13:52:54,617 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2018-07-23 13:52:54,618 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3655, Invalid=3655, Unknown=0, NotChecked=0, Total=7310 [2018-07-23 13:52:54,618 INFO L87 Difference]: Start difference. First operand 87 states and 87 transitions. Second operand 86 states. [2018-07-23 13:52:54,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:54,661 INFO L93 Difference]: Finished difference Result 90 states and 90 transitions. [2018-07-23 13:52:54,661 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2018-07-23 13:52:54,661 INFO L78 Accepts]: Start accepts. Automaton has 86 states. Word has length 86 [2018-07-23 13:52:54,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:54,662 INFO L225 Difference]: With dead ends: 90 [2018-07-23 13:52:54,662 INFO L226 Difference]: Without dead ends: 88 [2018-07-23 13:52:54,662 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=3655, Invalid=3655, Unknown=0, NotChecked=0, Total=7310 [2018-07-23 13:52:54,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2018-07-23 13:52:54,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2018-07-23 13:52:54,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2018-07-23 13:52:54,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 88 transitions. [2018-07-23 13:52:54,669 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 88 transitions. Word has length 86 [2018-07-23 13:52:54,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:54,670 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 88 transitions. [2018-07-23 13:52:54,670 INFO L472 AbstractCegarLoop]: Interpolant automaton has 86 states. [2018-07-23 13:52:54,670 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 88 transitions. [2018-07-23 13:52:54,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-07-23 13:52:54,671 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:54,671 INFO L357 BasicCegarLoop]: trace histogram [84, 1, 1, 1] [2018-07-23 13:52:54,671 INFO L414 AbstractCegarLoop]: === Iteration 85 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:54,671 INFO L82 PathProgramCache]: Analyzing trace with hash -106935072, now seen corresponding path program 84 times [2018-07-23 13:52:54,671 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:54,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:55,514 INFO L134 CoverageAnalysis]: Checked inductivity of 3570 backedges. 0 proven. 3570 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:55,514 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:55,514 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [86] total 86 [2018-07-23 13:52:55,515 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:55,515 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 13:52:55,515 INFO L185 omatonBuilderFactory]: Interpolants [19719#true, 19720#false, 19721#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 19722#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 19723#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 19724#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 19725#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 19726#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 19727#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 19728#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 19729#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 19730#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 19731#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 19732#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 19733#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 19734#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 19735#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 19736#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 19737#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 19738#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 19739#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 19740#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 19741#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 19742#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 19743#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 19744#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 19745#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 19746#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 19747#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 19748#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 19749#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 19750#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 19751#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 19752#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 19753#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 19754#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 19755#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 19756#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 19757#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 19758#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 19759#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 19760#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 19761#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 19762#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 19763#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 19764#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 19765#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 19766#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 19767#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 19768#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 19769#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 19770#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 19771#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 19772#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 19773#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 19774#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 19775#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 19776#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 19777#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 19778#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 19779#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 19780#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 19781#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 19782#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 19783#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 19784#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 19785#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 19786#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 19787#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 19788#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 19789#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 19790#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 19791#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 19792#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 19793#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 19794#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 19795#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 19796#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 19797#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 19798#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 19799#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 19800#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 19801#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 19802#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 19803#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 19804#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 19805#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:52:55,515 INFO L134 CoverageAnalysis]: Checked inductivity of 3570 backedges. 0 proven. 3570 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:55,515 INFO L450 AbstractCegarLoop]: Interpolant automaton has 87 states [2018-07-23 13:52:55,516 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2018-07-23 13:52:55,517 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3741, Invalid=3741, Unknown=0, NotChecked=0, Total=7482 [2018-07-23 13:52:55,517 INFO L87 Difference]: Start difference. First operand 88 states and 88 transitions. Second operand 87 states. [2018-07-23 13:52:55,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:55,590 INFO L93 Difference]: Finished difference Result 91 states and 91 transitions. [2018-07-23 13:52:55,590 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2018-07-23 13:52:55,590 INFO L78 Accepts]: Start accepts. Automaton has 87 states. Word has length 87 [2018-07-23 13:52:55,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:55,591 INFO L225 Difference]: With dead ends: 91 [2018-07-23 13:52:55,591 INFO L226 Difference]: Without dead ends: 89 [2018-07-23 13:52:55,592 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=3741, Invalid=3741, Unknown=0, NotChecked=0, Total=7482 [2018-07-23 13:52:55,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2018-07-23 13:52:55,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2018-07-23 13:52:55,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-07-23 13:52:55,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 89 transitions. [2018-07-23 13:52:55,598 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 89 transitions. Word has length 87 [2018-07-23 13:52:55,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:55,598 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 89 transitions. [2018-07-23 13:52:55,598 INFO L472 AbstractCegarLoop]: Interpolant automaton has 87 states. [2018-07-23 13:52:55,598 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 89 transitions. [2018-07-23 13:52:55,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-07-23 13:52:55,599 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:55,599 INFO L357 BasicCegarLoop]: trace histogram [85, 1, 1, 1] [2018-07-23 13:52:55,599 INFO L414 AbstractCegarLoop]: === Iteration 86 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:55,599 INFO L82 PathProgramCache]: Analyzing trace with hash 979976198, now seen corresponding path program 85 times [2018-07-23 13:52:55,599 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:55,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:56,404 INFO L134 CoverageAnalysis]: Checked inductivity of 3655 backedges. 0 proven. 3655 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:56,405 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:56,405 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [87] total 87 [2018-07-23 13:52:56,405 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:56,405 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 13:52:56,405 INFO L185 omatonBuilderFactory]: Interpolants [20224#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 20225#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 20226#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 20227#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 20228#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 20229#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 20230#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 20231#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 20232#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 20233#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 20234#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 20235#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 20236#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 20237#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 20238#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 20239#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 20240#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 20241#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 20242#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 20243#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 20244#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 20245#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 20246#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 20247#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 20248#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 20249#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 20250#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 20251#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 20252#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 20253#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 20166#true, 20167#false, 20168#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 20169#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 20170#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 20171#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 20172#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 20173#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 20174#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 20175#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 20176#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 20177#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 20178#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 20179#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 20180#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 20181#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 20182#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 20183#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 20184#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 20185#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 20186#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 20187#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 20188#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 20189#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 20190#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 20191#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 20192#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 20193#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 20194#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 20195#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 20196#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 20197#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 20198#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 20199#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 20200#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 20201#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 20202#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 20203#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 20204#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 20205#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 20206#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 20207#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 20208#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 20209#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 20210#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 20211#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 20212#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 20213#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 20214#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 20215#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 20216#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 20217#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 20218#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 20219#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 20220#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 20221#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 20222#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 20223#(and (<= (select main_a main_x) 55) (not (= main_x main_y)))] [2018-07-23 13:52:56,406 INFO L134 CoverageAnalysis]: Checked inductivity of 3655 backedges. 0 proven. 3655 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:56,406 INFO L450 AbstractCegarLoop]: Interpolant automaton has 88 states [2018-07-23 13:52:56,407 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2018-07-23 13:52:56,407 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3828, Invalid=3828, Unknown=0, NotChecked=0, Total=7656 [2018-07-23 13:52:56,407 INFO L87 Difference]: Start difference. First operand 89 states and 89 transitions. Second operand 88 states. [2018-07-23 13:52:56,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:56,464 INFO L93 Difference]: Finished difference Result 92 states and 92 transitions. [2018-07-23 13:52:56,464 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2018-07-23 13:52:56,464 INFO L78 Accepts]: Start accepts. Automaton has 88 states. Word has length 88 [2018-07-23 13:52:56,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:56,465 INFO L225 Difference]: With dead ends: 92 [2018-07-23 13:52:56,465 INFO L226 Difference]: Without dead ends: 90 [2018-07-23 13:52:56,466 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=3828, Invalid=3828, Unknown=0, NotChecked=0, Total=7656 [2018-07-23 13:52:56,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2018-07-23 13:52:56,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2018-07-23 13:52:56,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2018-07-23 13:52:56,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 90 transitions. [2018-07-23 13:52:56,472 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 90 transitions. Word has length 88 [2018-07-23 13:52:56,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:56,472 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 90 transitions. [2018-07-23 13:52:56,472 INFO L472 AbstractCegarLoop]: Interpolant automaton has 88 states. [2018-07-23 13:52:56,472 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 90 transitions. [2018-07-23 13:52:56,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-07-23 13:52:56,473 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:56,473 INFO L357 BasicCegarLoop]: trace histogram [86, 1, 1, 1] [2018-07-23 13:52:56,473 INFO L414 AbstractCegarLoop]: === Iteration 87 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:56,473 INFO L82 PathProgramCache]: Analyzing trace with hash 314487200, now seen corresponding path program 86 times [2018-07-23 13:52:56,473 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:56,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:57,393 INFO L134 CoverageAnalysis]: Checked inductivity of 3741 backedges. 0 proven. 3741 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:57,393 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:57,393 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [88] total 88 [2018-07-23 13:52:57,393 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:57,393 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 13:52:57,394 INFO L185 omatonBuilderFactory]: Interpolants [20618#true, 20619#false, 20620#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 20621#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 20622#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 20623#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 20624#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 20625#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 20626#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 20627#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 20628#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 20629#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 20630#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 20631#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 20632#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 20633#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 20634#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 20635#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 20636#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 20637#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 20638#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 20639#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 20640#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 20641#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 20642#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 20643#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 20644#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 20645#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 20646#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 20647#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 20648#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 20649#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 20650#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 20651#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 20652#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 20653#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 20654#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 20655#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 20656#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 20657#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 20658#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 20659#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 20660#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 20661#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 20662#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 20663#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 20664#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 20665#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 20666#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 20667#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 20668#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 20669#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 20670#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 20671#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 20672#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 20673#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 20674#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 20675#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 20676#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 20677#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 20678#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 20679#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 20680#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 20681#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 20682#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 20683#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 20684#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 20685#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 20686#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 20687#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 20688#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 20689#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 20690#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 20691#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 20692#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 20693#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 20694#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 20695#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 20696#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 20697#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 20698#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 20699#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 20700#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 20701#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 20702#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 20703#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 20704#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 20705#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 20706#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:52:57,394 INFO L134 CoverageAnalysis]: Checked inductivity of 3741 backedges. 0 proven. 3741 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:57,394 INFO L450 AbstractCegarLoop]: Interpolant automaton has 89 states [2018-07-23 13:52:57,395 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2018-07-23 13:52:57,395 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3916, Invalid=3916, Unknown=0, NotChecked=0, Total=7832 [2018-07-23 13:52:57,396 INFO L87 Difference]: Start difference. First operand 90 states and 90 transitions. Second operand 89 states. [2018-07-23 13:52:57,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:57,469 INFO L93 Difference]: Finished difference Result 93 states and 93 transitions. [2018-07-23 13:52:57,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2018-07-23 13:52:57,469 INFO L78 Accepts]: Start accepts. Automaton has 89 states. Word has length 89 [2018-07-23 13:52:57,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:57,470 INFO L225 Difference]: With dead ends: 93 [2018-07-23 13:52:57,470 INFO L226 Difference]: Without dead ends: 91 [2018-07-23 13:52:57,471 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=3916, Invalid=3916, Unknown=0, NotChecked=0, Total=7832 [2018-07-23 13:52:57,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2018-07-23 13:52:57,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2018-07-23 13:52:57,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2018-07-23 13:52:57,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 91 transitions. [2018-07-23 13:52:57,477 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 91 transitions. Word has length 89 [2018-07-23 13:52:57,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:57,477 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 91 transitions. [2018-07-23 13:52:57,477 INFO L472 AbstractCegarLoop]: Interpolant automaton has 89 states. [2018-07-23 13:52:57,478 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 91 transitions. [2018-07-23 13:52:57,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-07-23 13:52:57,478 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:57,478 INFO L357 BasicCegarLoop]: trace histogram [87, 1, 1, 1] [2018-07-23 13:52:57,478 INFO L414 AbstractCegarLoop]: === Iteration 88 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:57,479 INFO L82 PathProgramCache]: Analyzing trace with hash 1159164742, now seen corresponding path program 87 times [2018-07-23 13:52:57,479 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:57,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:58,388 INFO L134 CoverageAnalysis]: Checked inductivity of 3828 backedges. 0 proven. 3828 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:58,388 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:58,388 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [89] total 89 [2018-07-23 13:52:58,388 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:58,389 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 13:52:58,389 INFO L185 omatonBuilderFactory]: Interpolants [21120#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 21121#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 21122#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 21123#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 21124#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 21125#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 21126#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 21127#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 21128#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 21129#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 21130#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 21131#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 21132#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 21133#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 21134#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 21135#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 21136#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 21137#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 21138#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 21139#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 21140#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 21141#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 21142#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 21143#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 21144#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 21145#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 21146#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 21147#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 21148#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 21149#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 21150#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 21151#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 21152#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 21153#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 21154#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 21155#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 21156#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 21157#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 21158#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 21159#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 21160#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 21161#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 21162#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 21163#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 21164#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 21075#true, 21076#false, 21077#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 21078#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 21079#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 21080#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 21081#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 21082#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 21083#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 21084#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 21085#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 21086#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 21087#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 21088#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 21089#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 21090#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 21091#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 21092#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 21093#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 21094#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 21095#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 21096#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 21097#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 21098#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 21099#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 21100#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 21101#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 21102#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 21103#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 21104#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 21105#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 21106#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 21107#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 21108#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 21109#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 21110#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 21111#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 21112#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 21113#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 21114#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 21115#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 21116#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 21117#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 21118#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 21119#(and (<= (select main_a main_x) 42) (not (= main_x main_y)))] [2018-07-23 13:52:58,389 INFO L134 CoverageAnalysis]: Checked inductivity of 3828 backedges. 0 proven. 3828 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:58,389 INFO L450 AbstractCegarLoop]: Interpolant automaton has 90 states [2018-07-23 13:52:58,390 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2018-07-23 13:52:58,390 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4005, Invalid=4005, Unknown=0, NotChecked=0, Total=8010 [2018-07-23 13:52:58,390 INFO L87 Difference]: Start difference. First operand 91 states and 91 transitions. Second operand 90 states. [2018-07-23 13:52:58,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:58,435 INFO L93 Difference]: Finished difference Result 94 states and 94 transitions. [2018-07-23 13:52:58,435 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2018-07-23 13:52:58,435 INFO L78 Accepts]: Start accepts. Automaton has 90 states. Word has length 90 [2018-07-23 13:52:58,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:58,436 INFO L225 Difference]: With dead ends: 94 [2018-07-23 13:52:58,436 INFO L226 Difference]: Without dead ends: 92 [2018-07-23 13:52:58,437 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=4005, Invalid=4005, Unknown=0, NotChecked=0, Total=8010 [2018-07-23 13:52:58,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2018-07-23 13:52:58,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2018-07-23 13:52:58,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2018-07-23 13:52:58,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 92 transitions. [2018-07-23 13:52:58,443 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 92 transitions. Word has length 90 [2018-07-23 13:52:58,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:58,443 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 92 transitions. [2018-07-23 13:52:58,443 INFO L472 AbstractCegarLoop]: Interpolant automaton has 90 states. [2018-07-23 13:52:58,443 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 92 transitions. [2018-07-23 13:52:58,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-07-23 13:52:58,444 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:58,444 INFO L357 BasicCegarLoop]: trace histogram [88, 1, 1, 1] [2018-07-23 13:52:58,444 INFO L414 AbstractCegarLoop]: === Iteration 89 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:58,444 INFO L82 PathProgramCache]: Analyzing trace with hash 1574364768, now seen corresponding path program 88 times [2018-07-23 13:52:58,445 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:58,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:59,293 INFO L134 CoverageAnalysis]: Checked inductivity of 3916 backedges. 0 proven. 3916 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:59,294 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:59,294 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [90] total 90 [2018-07-23 13:52:59,294 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:59,294 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 13:52:59,295 INFO L185 omatonBuilderFactory]: Interpolants [21537#true, 21538#false, 21539#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 21540#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 21541#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 21542#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 21543#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 21544#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 21545#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 21546#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 21547#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 21548#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 21549#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 21550#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 21551#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 21552#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 21553#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 21554#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 21555#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 21556#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 21557#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 21558#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 21559#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 21560#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 21561#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 21562#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 21563#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 21564#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 21565#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 21566#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 21567#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 21568#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 21569#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 21570#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 21571#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 21572#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 21573#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 21574#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 21575#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 21576#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 21577#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 21578#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 21579#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 21580#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 21581#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 21582#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 21583#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 21584#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 21585#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 21586#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 21587#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 21588#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 21589#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 21590#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 21591#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 21592#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 21593#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 21594#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 21595#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 21596#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 21597#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 21598#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 21599#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 21600#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 21601#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 21602#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 21603#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 21604#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 21605#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 21606#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 21607#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 21608#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 21609#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 21610#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 21611#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 21612#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 21613#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 21614#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 21615#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 21616#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 21617#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 21618#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 21619#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 21620#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 21621#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 21622#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 21623#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 21624#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 21625#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 21626#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 21627#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:52:59,295 INFO L134 CoverageAnalysis]: Checked inductivity of 3916 backedges. 0 proven. 3916 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:59,295 INFO L450 AbstractCegarLoop]: Interpolant automaton has 91 states [2018-07-23 13:52:59,296 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2018-07-23 13:52:59,296 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4095, Invalid=4095, Unknown=0, NotChecked=0, Total=8190 [2018-07-23 13:52:59,296 INFO L87 Difference]: Start difference. First operand 92 states and 92 transitions. Second operand 91 states. [2018-07-23 13:52:59,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:59,367 INFO L93 Difference]: Finished difference Result 95 states and 95 transitions. [2018-07-23 13:52:59,367 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2018-07-23 13:52:59,367 INFO L78 Accepts]: Start accepts. Automaton has 91 states. Word has length 91 [2018-07-23 13:52:59,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:59,368 INFO L225 Difference]: With dead ends: 95 [2018-07-23 13:52:59,369 INFO L226 Difference]: Without dead ends: 93 [2018-07-23 13:52:59,369 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=4095, Invalid=4095, Unknown=0, NotChecked=0, Total=8190 [2018-07-23 13:52:59,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2018-07-23 13:52:59,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2018-07-23 13:52:59,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2018-07-23 13:52:59,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 93 transitions. [2018-07-23 13:52:59,375 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 93 transitions. Word has length 91 [2018-07-23 13:52:59,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:59,375 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 93 transitions. [2018-07-23 13:52:59,375 INFO L472 AbstractCegarLoop]: Interpolant automaton has 91 states. [2018-07-23 13:52:59,375 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 93 transitions. [2018-07-23 13:52:59,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-07-23 13:52:59,376 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:59,376 INFO L357 BasicCegarLoop]: trace histogram [89, 1, 1, 1] [2018-07-23 13:52:59,376 INFO L414 AbstractCegarLoop]: === Iteration 90 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:59,376 INFO L82 PathProgramCache]: Analyzing trace with hash 1560663686, now seen corresponding path program 89 times [2018-07-23 13:52:59,376 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:59,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:00,356 INFO L134 CoverageAnalysis]: Checked inductivity of 4005 backedges. 0 proven. 4005 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:00,356 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:00,356 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [91] total 91 [2018-07-23 13:53:00,357 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:00,357 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 13:53:00,357 INFO L185 omatonBuilderFactory]: Interpolants [22016#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 22017#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 22018#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 22019#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 22020#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 22021#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 22022#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 22023#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 22024#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 22025#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 22026#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 22027#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 22028#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 22029#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 22030#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 22031#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 22032#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 22033#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 22034#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 22035#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 22036#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 22037#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 22038#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 22039#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 22040#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 22041#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 22042#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 22043#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 22044#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 22045#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 22046#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 22047#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 22048#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 22049#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 22050#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 22051#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 22052#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 22053#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 22054#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 22055#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 22056#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 22057#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 22058#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 22059#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 22060#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 22061#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 22062#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 22063#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 22064#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 22065#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 22066#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 22067#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 22068#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 22069#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 22070#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 22071#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 22072#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 22073#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 22074#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 22075#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 22076#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 22077#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 22078#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 22079#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 22080#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 22081#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 22082#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 22083#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 22084#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 22085#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 22086#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 22087#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 22088#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 22089#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 22090#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 22091#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 22092#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 22093#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 22094#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 22095#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 22004#true, 22005#false, 22006#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 22007#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 22008#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 22009#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 22010#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 22011#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 22012#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 22013#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 22014#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 22015#(and (not (= main_x main_y)) (<= (select main_a main_x) 9))] [2018-07-23 13:53:00,358 INFO L134 CoverageAnalysis]: Checked inductivity of 4005 backedges. 0 proven. 4005 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:00,358 INFO L450 AbstractCegarLoop]: Interpolant automaton has 92 states [2018-07-23 13:53:00,359 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2018-07-23 13:53:00,359 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4186, Invalid=4186, Unknown=0, NotChecked=0, Total=8372 [2018-07-23 13:53:00,360 INFO L87 Difference]: Start difference. First operand 93 states and 93 transitions. Second operand 92 states. [2018-07-23 13:53:00,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:00,474 INFO L93 Difference]: Finished difference Result 96 states and 96 transitions. [2018-07-23 13:53:00,474 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2018-07-23 13:53:00,474 INFO L78 Accepts]: Start accepts. Automaton has 92 states. Word has length 92 [2018-07-23 13:53:00,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:00,475 INFO L225 Difference]: With dead ends: 96 [2018-07-23 13:53:00,476 INFO L226 Difference]: Without dead ends: 94 [2018-07-23 13:53:00,476 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=4186, Invalid=4186, Unknown=0, NotChecked=0, Total=8372 [2018-07-23 13:53:00,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2018-07-23 13:53:00,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2018-07-23 13:53:00,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2018-07-23 13:53:00,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 94 transitions. [2018-07-23 13:53:00,483 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 94 transitions. Word has length 92 [2018-07-23 13:53:00,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:00,483 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 94 transitions. [2018-07-23 13:53:00,483 INFO L472 AbstractCegarLoop]: Interpolant automaton has 92 states. [2018-07-23 13:53:00,483 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 94 transitions. [2018-07-23 13:53:00,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-07-23 13:53:00,484 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:00,484 INFO L357 BasicCegarLoop]: trace histogram [90, 1, 1, 1] [2018-07-23 13:53:00,484 INFO L414 AbstractCegarLoop]: === Iteration 91 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:00,484 INFO L82 PathProgramCache]: Analyzing trace with hash 1135930144, now seen corresponding path program 90 times [2018-07-23 13:53:00,484 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:00,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:01,609 INFO L134 CoverageAnalysis]: Checked inductivity of 4095 backedges. 0 proven. 4095 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:01,610 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:01,610 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [92] total 92 [2018-07-23 13:53:01,610 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:01,611 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 13:53:01,611 INFO L185 omatonBuilderFactory]: Interpolants [22528#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 22529#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 22530#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 22531#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 22532#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 22533#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 22534#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 22535#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 22536#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 22537#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 22538#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 22539#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 22540#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 22541#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 22542#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 22543#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 22544#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 22545#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 22546#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 22547#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 22548#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 22549#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 22550#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 22551#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 22552#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 22553#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 22554#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 22555#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 22556#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 22557#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 22558#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 22559#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 22560#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 22561#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 22562#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 22563#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 22564#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 22565#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 22566#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 22567#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 22568#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 22476#true, 22477#false, 22478#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 22479#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 22480#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 22481#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 22482#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 22483#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 22484#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 22485#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 22486#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 22487#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 22488#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 22489#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 22490#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 22491#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 22492#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 22493#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 22494#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 22495#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 22496#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 22497#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 22498#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 22499#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 22500#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 22501#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 22502#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 22503#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 22504#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 22505#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 22506#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 22507#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 22508#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 22509#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 22510#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 22511#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 22512#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 22513#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 22514#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 22515#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 22516#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 22517#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 22518#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 22519#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 22520#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 22521#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 22522#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 22523#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 22524#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 22525#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 22526#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 22527#(and (<= (select main_a main_x) 49) (not (= main_x main_y)))] [2018-07-23 13:53:01,611 INFO L134 CoverageAnalysis]: Checked inductivity of 4095 backedges. 0 proven. 4095 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:01,611 INFO L450 AbstractCegarLoop]: Interpolant automaton has 93 states [2018-07-23 13:53:01,612 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 93 interpolants. [2018-07-23 13:53:01,612 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4278, Invalid=4278, Unknown=0, NotChecked=0, Total=8556 [2018-07-23 13:53:01,613 INFO L87 Difference]: Start difference. First operand 94 states and 94 transitions. Second operand 93 states. [2018-07-23 13:53:01,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:01,710 INFO L93 Difference]: Finished difference Result 97 states and 97 transitions. [2018-07-23 13:53:01,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2018-07-23 13:53:01,711 INFO L78 Accepts]: Start accepts. Automaton has 93 states. Word has length 93 [2018-07-23 13:53:01,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:01,711 INFO L225 Difference]: With dead ends: 97 [2018-07-23 13:53:01,711 INFO L226 Difference]: Without dead ends: 95 [2018-07-23 13:53:01,712 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=4278, Invalid=4278, Unknown=0, NotChecked=0, Total=8556 [2018-07-23 13:53:01,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2018-07-23 13:53:01,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2018-07-23 13:53:01,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2018-07-23 13:53:01,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 95 transitions. [2018-07-23 13:53:01,718 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 95 transitions. Word has length 93 [2018-07-23 13:53:01,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:01,718 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 95 transitions. [2018-07-23 13:53:01,719 INFO L472 AbstractCegarLoop]: Interpolant automaton has 93 states. [2018-07-23 13:53:01,719 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 95 transitions. [2018-07-23 13:53:01,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-07-23 13:53:01,719 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:01,719 INFO L357 BasicCegarLoop]: trace histogram [91, 1, 1, 1] [2018-07-23 13:53:01,720 INFO L414 AbstractCegarLoop]: === Iteration 92 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:01,720 INFO L82 PathProgramCache]: Analyzing trace with hash 854092230, now seen corresponding path program 91 times [2018-07-23 13:53:01,720 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:01,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:02,626 INFO L134 CoverageAnalysis]: Checked inductivity of 4186 backedges. 0 proven. 4186 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:02,626 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:02,626 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [93] total 93 [2018-07-23 13:53:02,626 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:02,627 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 13:53:02,627 INFO L185 omatonBuilderFactory]: Interpolants [23040#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 23041#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 23042#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 23043#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 23044#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 23045#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 23046#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 22953#true, 22954#false, 22955#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 22956#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 22957#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 22958#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 22959#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 22960#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 22961#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 22962#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 22963#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 22964#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 22965#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 22966#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 22967#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 22968#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 22969#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 22970#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 22971#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 22972#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 22973#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 22974#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 22975#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 22976#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 22977#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 22978#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 22979#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 22980#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 22981#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 22982#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 22983#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 22984#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 22985#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 22986#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 22987#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 22988#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 22989#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 22990#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 22991#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 22992#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 22993#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 22994#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 22995#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 22996#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 22997#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 22998#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 22999#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 23000#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 23001#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 23002#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 23003#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 23004#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 23005#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 23006#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 23007#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 23008#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 23009#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 23010#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 23011#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 23012#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 23013#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 23014#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 23015#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 23016#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 23017#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 23018#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 23019#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 23020#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 23021#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 23022#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 23023#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 23024#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 23025#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 23026#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 23027#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 23028#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 23029#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 23030#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 23031#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 23032#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 23033#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 23034#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 23035#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 23036#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 23037#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 23038#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 23039#(and (<= (select main_a main_x) 84) (not (= main_x main_y)))] [2018-07-23 13:53:02,627 INFO L134 CoverageAnalysis]: Checked inductivity of 4186 backedges. 0 proven. 4186 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:02,627 INFO L450 AbstractCegarLoop]: Interpolant automaton has 94 states [2018-07-23 13:53:02,628 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2018-07-23 13:53:02,628 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4371, Invalid=4371, Unknown=0, NotChecked=0, Total=8742 [2018-07-23 13:53:02,629 INFO L87 Difference]: Start difference. First operand 95 states and 95 transitions. Second operand 94 states. [2018-07-23 13:53:02,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:02,685 INFO L93 Difference]: Finished difference Result 98 states and 98 transitions. [2018-07-23 13:53:02,686 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2018-07-23 13:53:02,686 INFO L78 Accepts]: Start accepts. Automaton has 94 states. Word has length 94 [2018-07-23 13:53:02,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:02,686 INFO L225 Difference]: With dead ends: 98 [2018-07-23 13:53:02,686 INFO L226 Difference]: Without dead ends: 96 [2018-07-23 13:53:02,687 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=4371, Invalid=4371, Unknown=0, NotChecked=0, Total=8742 [2018-07-23 13:53:02,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2018-07-23 13:53:02,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2018-07-23 13:53:02,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2018-07-23 13:53:02,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 96 transitions. [2018-07-23 13:53:02,692 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 96 transitions. Word has length 94 [2018-07-23 13:53:02,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:02,692 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 96 transitions. [2018-07-23 13:53:02,692 INFO L472 AbstractCegarLoop]: Interpolant automaton has 94 states. [2018-07-23 13:53:02,692 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 96 transitions. [2018-07-23 13:53:02,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2018-07-23 13:53:02,692 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:02,693 INFO L357 BasicCegarLoop]: trace histogram [92, 1, 1, 1] [2018-07-23 13:53:02,693 INFO L414 AbstractCegarLoop]: === Iteration 93 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:02,693 INFO L82 PathProgramCache]: Analyzing trace with hash 707051488, now seen corresponding path program 92 times [2018-07-23 13:53:02,693 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:02,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:03,625 INFO L134 CoverageAnalysis]: Checked inductivity of 4278 backedges. 0 proven. 4278 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:03,625 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:03,626 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [94] total 94 [2018-07-23 13:53:03,626 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:03,626 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 13:53:03,626 INFO L185 omatonBuilderFactory]: Interpolants [23435#true, 23436#false, 23437#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 23438#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 23439#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 23440#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 23441#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 23442#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 23443#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 23444#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 23445#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 23446#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 23447#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 23448#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 23449#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 23450#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 23451#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 23452#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 23453#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 23454#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 23455#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 23456#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 23457#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 23458#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 23459#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 23460#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 23461#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 23462#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 23463#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 23464#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 23465#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 23466#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 23467#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 23468#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 23469#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 23470#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 23471#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 23472#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 23473#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 23474#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 23475#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 23476#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 23477#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 23478#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 23479#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 23480#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 23481#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 23482#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 23483#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 23484#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 23485#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 23486#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 23487#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 23488#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 23489#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 23490#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 23491#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 23492#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 23493#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 23494#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 23495#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 23496#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 23497#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 23498#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 23499#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 23500#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 23501#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 23502#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 23503#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 23504#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 23505#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 23506#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 23507#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 23508#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 23509#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 23510#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 23511#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 23512#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 23513#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 23514#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 23515#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 23516#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 23517#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 23518#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 23519#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 23520#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 23521#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 23522#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 23523#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 23524#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 23525#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 23526#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 23527#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 23528#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 23529#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:53:03,627 INFO L134 CoverageAnalysis]: Checked inductivity of 4278 backedges. 0 proven. 4278 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:03,627 INFO L450 AbstractCegarLoop]: Interpolant automaton has 95 states [2018-07-23 13:53:03,628 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2018-07-23 13:53:03,628 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4465, Invalid=4465, Unknown=0, NotChecked=0, Total=8930 [2018-07-23 13:53:03,628 INFO L87 Difference]: Start difference. First operand 96 states and 96 transitions. Second operand 95 states. [2018-07-23 13:53:03,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:03,710 INFO L93 Difference]: Finished difference Result 99 states and 99 transitions. [2018-07-23 13:53:03,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2018-07-23 13:53:03,710 INFO L78 Accepts]: Start accepts. Automaton has 95 states. Word has length 95 [2018-07-23 13:53:03,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:03,711 INFO L225 Difference]: With dead ends: 99 [2018-07-23 13:53:03,711 INFO L226 Difference]: Without dead ends: 97 [2018-07-23 13:53:03,712 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=4465, Invalid=4465, Unknown=0, NotChecked=0, Total=8930 [2018-07-23 13:53:03,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2018-07-23 13:53:03,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2018-07-23 13:53:03,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2018-07-23 13:53:03,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 97 transitions. [2018-07-23 13:53:03,716 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 97 transitions. Word has length 95 [2018-07-23 13:53:03,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:03,716 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 97 transitions. [2018-07-23 13:53:03,716 INFO L472 AbstractCegarLoop]: Interpolant automaton has 95 states. [2018-07-23 13:53:03,716 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 97 transitions. [2018-07-23 13:53:03,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-07-23 13:53:03,716 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:03,717 INFO L357 BasicCegarLoop]: trace histogram [93, 1, 1, 1] [2018-07-23 13:53:03,717 INFO L414 AbstractCegarLoop]: === Iteration 94 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:03,717 INFO L82 PathProgramCache]: Analyzing trace with hash 443755782, now seen corresponding path program 93 times [2018-07-23 13:53:03,717 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:03,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:04,766 INFO L134 CoverageAnalysis]: Checked inductivity of 4371 backedges. 0 proven. 4371 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:04,766 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:04,766 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [95] total 95 [2018-07-23 13:53:04,766 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:04,766 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 13:53:04,767 INFO L185 omatonBuilderFactory]: Interpolants [23936#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 23937#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 23938#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 23939#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 23940#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 23941#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 23942#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 23943#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 23944#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 23945#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 23946#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 23947#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 23948#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 23949#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 23950#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 23951#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 23952#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 23953#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 23954#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 23955#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 23956#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 23957#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 23958#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 23959#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 23960#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 23961#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 23962#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 23963#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 23964#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 23965#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 23966#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 23967#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 23968#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 23969#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 23970#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 23971#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 23972#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 23973#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 23974#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 23975#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 23976#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 23977#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 23978#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 23979#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 23980#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 23981#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 23982#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 23983#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 23984#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 23985#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 23986#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 23987#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 23988#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 23989#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 23990#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 23991#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 23992#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 23993#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 23994#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 23995#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 23996#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 23997#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 23998#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 23999#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 24000#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 24001#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 24002#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 24003#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 24004#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 24005#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 24006#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 24007#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 24008#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 24009#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 24010#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 24011#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 24012#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 24013#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 24014#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 24015#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 24016#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 24017#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 23922#true, 23923#false, 23924#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 23925#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 23926#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 23927#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 23928#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 23929#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 23930#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 23931#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 23932#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 23933#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 23934#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 23935#(and (not (= main_x main_y)) (<= (select main_a main_x) 11))] [2018-07-23 13:53:04,767 INFO L134 CoverageAnalysis]: Checked inductivity of 4371 backedges. 0 proven. 4371 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:04,767 INFO L450 AbstractCegarLoop]: Interpolant automaton has 96 states [2018-07-23 13:53:04,768 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2018-07-23 13:53:04,768 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2018-07-23 13:53:04,768 INFO L87 Difference]: Start difference. First operand 97 states and 97 transitions. Second operand 96 states. [2018-07-23 13:53:04,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:04,875 INFO L93 Difference]: Finished difference Result 100 states and 100 transitions. [2018-07-23 13:53:04,875 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2018-07-23 13:53:04,875 INFO L78 Accepts]: Start accepts. Automaton has 96 states. Word has length 96 [2018-07-23 13:53:04,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:04,876 INFO L225 Difference]: With dead ends: 100 [2018-07-23 13:53:04,876 INFO L226 Difference]: Without dead ends: 98 [2018-07-23 13:53:04,877 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2018-07-23 13:53:04,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2018-07-23 13:53:04,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2018-07-23 13:53:04,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2018-07-23 13:53:04,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 98 transitions. [2018-07-23 13:53:04,882 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 98 transitions. Word has length 96 [2018-07-23 13:53:04,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:04,882 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 98 transitions. [2018-07-23 13:53:04,882 INFO L472 AbstractCegarLoop]: Interpolant automaton has 96 states. [2018-07-23 13:53:04,882 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 98 transitions. [2018-07-23 13:53:04,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2018-07-23 13:53:04,882 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:04,882 INFO L357 BasicCegarLoop]: trace histogram [94, 1, 1, 1] [2018-07-23 13:53:04,882 INFO L414 AbstractCegarLoop]: === Iteration 95 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:04,883 INFO L82 PathProgramCache]: Analyzing trace with hash 871523488, now seen corresponding path program 94 times [2018-07-23 13:53:04,883 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:04,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:05,869 INFO L134 CoverageAnalysis]: Checked inductivity of 4465 backedges. 0 proven. 4465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:05,870 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:05,870 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [96] total 96 [2018-07-23 13:53:05,870 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:05,870 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 13:53:05,871 INFO L185 omatonBuilderFactory]: Interpolants [24414#true, 24415#false, 24416#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 24417#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 24418#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 24419#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 24420#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 24421#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 24422#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 24423#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 24424#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 24425#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 24426#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 24427#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 24428#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 24429#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 24430#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 24431#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 24432#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 24433#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 24434#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 24435#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 24436#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 24437#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 24438#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 24439#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 24440#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 24441#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 24442#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 24443#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 24444#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 24445#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 24446#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 24447#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 24448#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 24449#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 24450#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 24451#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 24452#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 24453#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 24454#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 24455#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 24456#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 24457#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 24458#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 24459#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 24460#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 24461#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 24462#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 24463#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 24464#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 24465#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 24466#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 24467#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 24468#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 24469#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 24470#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 24471#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 24472#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 24473#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 24474#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 24475#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 24476#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 24477#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 24478#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 24479#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 24480#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 24481#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 24482#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 24483#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 24484#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 24485#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 24486#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 24487#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 24488#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 24489#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 24490#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 24491#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 24492#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 24493#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 24494#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 24495#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 24496#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 24497#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 24498#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 24499#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 24500#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 24501#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 24502#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 24503#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 24504#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 24505#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 24506#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 24507#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 24508#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 24509#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 24510#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:53:05,871 INFO L134 CoverageAnalysis]: Checked inductivity of 4465 backedges. 0 proven. 4465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:05,871 INFO L450 AbstractCegarLoop]: Interpolant automaton has 97 states [2018-07-23 13:53:05,872 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2018-07-23 13:53:05,873 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312 [2018-07-23 13:53:05,873 INFO L87 Difference]: Start difference. First operand 98 states and 98 transitions. Second operand 97 states. [2018-07-23 13:53:05,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:05,960 INFO L93 Difference]: Finished difference Result 101 states and 101 transitions. [2018-07-23 13:53:05,960 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2018-07-23 13:53:05,960 INFO L78 Accepts]: Start accepts. Automaton has 97 states. Word has length 97 [2018-07-23 13:53:05,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:05,961 INFO L225 Difference]: With dead ends: 101 [2018-07-23 13:53:05,961 INFO L226 Difference]: Without dead ends: 99 [2018-07-23 13:53:05,962 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312 [2018-07-23 13:53:05,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2018-07-23 13:53:05,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2018-07-23 13:53:05,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2018-07-23 13:53:05,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 99 transitions. [2018-07-23 13:53:05,968 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 99 transitions. Word has length 97 [2018-07-23 13:53:05,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:05,968 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 99 transitions. [2018-07-23 13:53:05,968 INFO L472 AbstractCegarLoop]: Interpolant automaton has 97 states. [2018-07-23 13:53:05,969 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 99 transitions. [2018-07-23 13:53:05,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2018-07-23 13:53:05,969 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:05,969 INFO L357 BasicCegarLoop]: trace histogram [95, 1, 1, 1] [2018-07-23 13:53:05,969 INFO L414 AbstractCegarLoop]: === Iteration 96 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:05,970 INFO L82 PathProgramCache]: Analyzing trace with hash 1247420486, now seen corresponding path program 95 times [2018-07-23 13:53:05,970 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:06,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:07,361 INFO L134 CoverageAnalysis]: Checked inductivity of 4560 backedges. 0 proven. 4560 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:07,361 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:07,362 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [97] total 97 [2018-07-23 13:53:07,362 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:07,362 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 13:53:07,362 INFO L185 omatonBuilderFactory]: Interpolants [24911#true, 24912#false, 24913#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 24914#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 24915#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 24916#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 24917#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 24918#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 24919#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 24920#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 24921#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 24922#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 24923#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 24924#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 24925#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 24926#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 24927#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 24928#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 24929#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 24930#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 24931#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 24932#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 24933#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 24934#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 24935#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 24936#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 24937#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 24938#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 24939#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 24940#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 24941#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 24942#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 24943#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 24944#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 24945#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 24946#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 24947#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 24948#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 24949#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 24950#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 24951#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 24952#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 24953#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 24954#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 24955#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 24956#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 24957#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 24958#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 24959#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 24960#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 24961#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 24962#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 24963#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 24964#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 24965#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 24966#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 24967#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 24968#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 24969#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 24970#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 24971#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 24972#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 24973#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 24974#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 24975#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 24976#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 24977#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 24978#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 24979#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 24980#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 24981#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 24982#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 24983#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 24984#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 24985#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 24986#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 24987#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 24988#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 24989#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 24990#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 24991#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 24992#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 24993#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 24994#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 24995#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 24996#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 24997#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 24998#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 24999#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 25000#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 25001#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 25002#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 25003#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 25004#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 25005#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 25006#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 25007#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 25008#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:53:07,363 INFO L134 CoverageAnalysis]: Checked inductivity of 4560 backedges. 0 proven. 4560 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:07,363 INFO L450 AbstractCegarLoop]: Interpolant automaton has 98 states [2018-07-23 13:53:07,364 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2018-07-23 13:53:07,364 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4753, Invalid=4753, Unknown=0, NotChecked=0, Total=9506 [2018-07-23 13:53:07,364 INFO L87 Difference]: Start difference. First operand 99 states and 99 transitions. Second operand 98 states. [2018-07-23 13:53:07,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:07,414 INFO L93 Difference]: Finished difference Result 102 states and 102 transitions. [2018-07-23 13:53:07,414 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2018-07-23 13:53:07,414 INFO L78 Accepts]: Start accepts. Automaton has 98 states. Word has length 98 [2018-07-23 13:53:07,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:07,415 INFO L225 Difference]: With dead ends: 102 [2018-07-23 13:53:07,415 INFO L226 Difference]: Without dead ends: 100 [2018-07-23 13:53:07,416 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=4753, Invalid=4753, Unknown=0, NotChecked=0, Total=9506 [2018-07-23 13:53:07,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2018-07-23 13:53:07,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2018-07-23 13:53:07,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2018-07-23 13:53:07,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 100 transitions. [2018-07-23 13:53:07,420 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 100 transitions. Word has length 98 [2018-07-23 13:53:07,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:07,421 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 100 transitions. [2018-07-23 13:53:07,421 INFO L472 AbstractCegarLoop]: Interpolant automaton has 98 states. [2018-07-23 13:53:07,421 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 100 transitions. [2018-07-23 13:53:07,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-07-23 13:53:07,421 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:07,422 INFO L357 BasicCegarLoop]: trace histogram [96, 1, 1, 1] [2018-07-23 13:53:07,422 INFO L414 AbstractCegarLoop]: === Iteration 97 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:07,422 INFO L82 PathProgramCache]: Analyzing trace with hash 15325536, now seen corresponding path program 96 times [2018-07-23 13:53:07,422 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:07,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:08,485 INFO L134 CoverageAnalysis]: Checked inductivity of 4656 backedges. 0 proven. 4656 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:08,485 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:08,485 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [98] total 98 [2018-07-23 13:53:08,485 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:08,485 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 13:53:08,486 INFO L185 omatonBuilderFactory]: Interpolants [25413#true, 25414#false, 25415#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 25416#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 25417#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 25418#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 25419#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 25420#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 25421#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 25422#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 25423#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 25424#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 25425#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 25426#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 25427#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 25428#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 25429#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 25430#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 25431#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 25432#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 25433#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 25434#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 25435#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 25436#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 25437#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 25438#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 25439#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 25440#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 25441#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 25442#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 25443#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 25444#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 25445#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 25446#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 25447#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 25448#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 25449#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 25450#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 25451#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 25452#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 25453#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 25454#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 25455#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 25456#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 25457#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 25458#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 25459#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 25460#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 25461#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 25462#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 25463#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 25464#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 25465#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 25466#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 25467#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 25468#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 25469#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 25470#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 25471#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 25472#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 25473#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 25474#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 25475#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 25476#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 25477#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 25478#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 25479#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 25480#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 25481#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 25482#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 25483#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 25484#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 25485#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 25486#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 25487#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 25488#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 25489#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 25490#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 25491#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 25492#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 25493#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 25494#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 25495#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 25496#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 25497#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 25498#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 25499#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 25500#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 25501#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 25502#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 25503#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 25504#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 25505#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 25506#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 25507#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 25508#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 25509#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 25510#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 25511#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:53:08,486 INFO L134 CoverageAnalysis]: Checked inductivity of 4656 backedges. 0 proven. 4656 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:08,486 INFO L450 AbstractCegarLoop]: Interpolant automaton has 99 states [2018-07-23 13:53:08,487 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2018-07-23 13:53:08,487 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4851, Invalid=4851, Unknown=0, NotChecked=0, Total=9702 [2018-07-23 13:53:08,487 INFO L87 Difference]: Start difference. First operand 100 states and 100 transitions. Second operand 99 states. [2018-07-23 13:53:08,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:08,569 INFO L93 Difference]: Finished difference Result 103 states and 103 transitions. [2018-07-23 13:53:08,569 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2018-07-23 13:53:08,569 INFO L78 Accepts]: Start accepts. Automaton has 99 states. Word has length 99 [2018-07-23 13:53:08,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:08,570 INFO L225 Difference]: With dead ends: 103 [2018-07-23 13:53:08,570 INFO L226 Difference]: Without dead ends: 101 [2018-07-23 13:53:08,571 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=4851, Invalid=4851, Unknown=0, NotChecked=0, Total=9702 [2018-07-23 13:53:08,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2018-07-23 13:53:08,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2018-07-23 13:53:08,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2018-07-23 13:53:08,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 101 transitions. [2018-07-23 13:53:08,577 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 101 transitions. Word has length 99 [2018-07-23 13:53:08,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:08,577 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 101 transitions. [2018-07-23 13:53:08,578 INFO L472 AbstractCegarLoop]: Interpolant automaton has 99 states. [2018-07-23 13:53:08,578 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 101 transitions. [2018-07-23 13:53:08,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2018-07-23 13:53:08,578 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:08,578 INFO L357 BasicCegarLoop]: trace histogram [97, 1, 1, 1] [2018-07-23 13:53:08,579 INFO L414 AbstractCegarLoop]: === Iteration 98 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:08,579 INFO L82 PathProgramCache]: Analyzing trace with hash 475087750, now seen corresponding path program 97 times [2018-07-23 13:53:08,579 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:08,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:09,769 INFO L134 CoverageAnalysis]: Checked inductivity of 4753 backedges. 0 proven. 4753 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:09,770 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:09,770 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [99] total 99 [2018-07-23 13:53:09,770 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:09,770 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 13:53:09,770 INFO L185 omatonBuilderFactory]: Interpolants [25920#true, 25921#false, 25922#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 25923#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 25924#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 25925#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 25926#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 25927#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 25928#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 25929#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 25930#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 25931#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 25932#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 25933#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 25934#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 25935#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 25936#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 25937#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 25938#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 25939#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 25940#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 25941#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 25942#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 25943#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 25944#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 25945#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 25946#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 25947#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 25948#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 25949#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 25950#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 25951#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 25952#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 25953#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 25954#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 25955#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 25956#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 25957#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 25958#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 25959#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 25960#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 25961#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 25962#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 25963#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 25964#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 25965#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 25966#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 25967#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 25968#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 25969#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 25970#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 25971#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 25972#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 25973#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 25974#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 25975#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 25976#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 25977#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 25978#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 25979#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 25980#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 25981#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 25982#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 25983#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 25984#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 25985#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 25986#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 25987#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 25988#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 25989#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 25990#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 25991#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 25992#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 25993#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 25994#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 25995#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 25996#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 25997#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 25998#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 25999#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 26000#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 26001#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 26002#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 26003#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 26004#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 26005#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 26006#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 26007#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 26008#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 26009#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 26010#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 26011#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 26012#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 26013#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 26014#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 26015#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 26016#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 26017#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 26018#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 26019#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:53:09,771 INFO L134 CoverageAnalysis]: Checked inductivity of 4753 backedges. 0 proven. 4753 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:09,771 INFO L450 AbstractCegarLoop]: Interpolant automaton has 100 states [2018-07-23 13:53:09,772 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2018-07-23 13:53:09,772 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4950, Invalid=4950, Unknown=0, NotChecked=0, Total=9900 [2018-07-23 13:53:09,772 INFO L87 Difference]: Start difference. First operand 101 states and 101 transitions. Second operand 100 states. [2018-07-23 13:53:09,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:09,841 INFO L93 Difference]: Finished difference Result 104 states and 104 transitions. [2018-07-23 13:53:09,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2018-07-23 13:53:09,841 INFO L78 Accepts]: Start accepts. Automaton has 100 states. Word has length 100 [2018-07-23 13:53:09,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:09,842 INFO L225 Difference]: With dead ends: 104 [2018-07-23 13:53:09,842 INFO L226 Difference]: Without dead ends: 102 [2018-07-23 13:53:09,843 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=4950, Invalid=4950, Unknown=0, NotChecked=0, Total=9900 [2018-07-23 13:53:09,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2018-07-23 13:53:09,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2018-07-23 13:53:09,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2018-07-23 13:53:09,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 102 transitions. [2018-07-23 13:53:09,849 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 102 transitions. Word has length 100 [2018-07-23 13:53:09,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:09,849 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 102 transitions. [2018-07-23 13:53:09,850 INFO L472 AbstractCegarLoop]: Interpolant automaton has 100 states. [2018-07-23 13:53:09,850 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 102 transitions. [2018-07-23 13:53:09,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-07-23 13:53:09,850 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:09,850 INFO L357 BasicCegarLoop]: trace histogram [98, 1, 1, 1] [2018-07-23 13:53:09,851 INFO L414 AbstractCegarLoop]: === Iteration 99 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:09,851 INFO L82 PathProgramCache]: Analyzing trace with hash 1842814496, now seen corresponding path program 98 times [2018-07-23 13:53:09,851 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:09,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:10,961 INFO L134 CoverageAnalysis]: Checked inductivity of 4851 backedges. 0 proven. 4851 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:10,961 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:10,961 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [100] total 100 [2018-07-23 13:53:10,962 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:10,962 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 13:53:10,962 INFO L185 omatonBuilderFactory]: Interpolants [26432#true, 26433#false, 26434#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 26435#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 26436#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 26437#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 26438#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 26439#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 26440#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 26441#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 26442#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 26443#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 26444#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 26445#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 26446#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 26447#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 26448#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 26449#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 26450#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 26451#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 26452#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 26453#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 26454#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 26455#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 26456#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 26457#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 26458#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 26459#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 26460#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 26461#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 26462#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 26463#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 26464#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 26465#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 26466#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 26467#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 26468#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 26469#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 26470#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 26471#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 26472#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 26473#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 26474#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 26475#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 26476#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 26477#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 26478#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 26479#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 26480#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 26481#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 26482#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 26483#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 26484#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 26485#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 26486#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 26487#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 26488#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 26489#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 26490#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 26491#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 26492#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 26493#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 26494#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 26495#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 26496#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 26497#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 26498#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 26499#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 26500#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 26501#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 26502#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 26503#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 26504#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 26505#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 26506#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 26507#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 26508#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 26509#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 26510#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 26511#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 26512#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 26513#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 26514#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 26515#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 26516#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 26517#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 26518#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 26519#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 26520#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 26521#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 26522#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 26523#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 26524#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 26525#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 26526#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 26527#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 26528#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 26529#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 26530#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 26531#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 26532#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:53:10,962 INFO L134 CoverageAnalysis]: Checked inductivity of 4851 backedges. 0 proven. 4851 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:10,963 INFO L450 AbstractCegarLoop]: Interpolant automaton has 101 states [2018-07-23 13:53:10,963 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2018-07-23 13:53:10,964 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5050, Invalid=5050, Unknown=0, NotChecked=0, Total=10100 [2018-07-23 13:53:10,964 INFO L87 Difference]: Start difference. First operand 102 states and 102 transitions. Second operand 101 states. [2018-07-23 13:53:11,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:11,038 INFO L93 Difference]: Finished difference Result 105 states and 105 transitions. [2018-07-23 13:53:11,038 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2018-07-23 13:53:11,038 INFO L78 Accepts]: Start accepts. Automaton has 101 states. Word has length 101 [2018-07-23 13:53:11,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:11,039 INFO L225 Difference]: With dead ends: 105 [2018-07-23 13:53:11,039 INFO L226 Difference]: Without dead ends: 103 [2018-07-23 13:53:11,040 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=5050, Invalid=5050, Unknown=0, NotChecked=0, Total=10100 [2018-07-23 13:53:11,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2018-07-23 13:53:11,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2018-07-23 13:53:11,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2018-07-23 13:53:11,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 103 transitions. [2018-07-23 13:53:11,046 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 103 transitions. Word has length 101 [2018-07-23 13:53:11,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:11,047 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 103 transitions. [2018-07-23 13:53:11,047 INFO L472 AbstractCegarLoop]: Interpolant automaton has 101 states. [2018-07-23 13:53:11,047 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 103 transitions. [2018-07-23 13:53:11,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-07-23 13:53:11,047 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:11,047 INFO L357 BasicCegarLoop]: trace histogram [99, 1, 1, 1] [2018-07-23 13:53:11,048 INFO L414 AbstractCegarLoop]: === Iteration 100 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:11,048 INFO L82 PathProgramCache]: Analyzing trace with hash 1292670662, now seen corresponding path program 99 times [2018-07-23 13:53:11,048 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:11,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:12,256 INFO L134 CoverageAnalysis]: Checked inductivity of 4950 backedges. 0 proven. 4950 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:12,256 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:12,257 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [101] total 101 [2018-07-23 13:53:12,257 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:12,257 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 13:53:12,257 INFO L185 omatonBuilderFactory]: Interpolants [26949#true, 26950#false, 26951#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 26952#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 26953#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 26954#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 26955#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 26956#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 26957#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 26958#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 26959#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 26960#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 26961#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 26962#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 26963#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 26964#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 26965#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 26966#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 26967#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 26968#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 26969#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 26970#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 26971#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 26972#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 26973#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 26974#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 26975#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 26976#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 26977#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 26978#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 26979#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 26980#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 26981#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 26982#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 26983#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 26984#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 26985#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 26986#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 26987#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 26988#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 26989#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 26990#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 26991#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 26992#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 26993#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 26994#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 26995#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 26996#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 26997#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 26998#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 26999#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 27000#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 27001#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 27002#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 27003#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 27004#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 27005#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 27006#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 27007#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 27008#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 27009#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 27010#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 27011#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 27012#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 27013#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 27014#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 27015#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 27016#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 27017#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 27018#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 27019#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 27020#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 27021#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 27022#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 27023#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 27024#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 27025#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 27026#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 27027#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 27028#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 27029#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 27030#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 27031#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 27032#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 27033#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 27034#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 27035#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 27036#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 27037#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 27038#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 27039#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 27040#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 27041#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 27042#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 27043#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 27044#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 27045#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 27046#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 27047#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 27048#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 27049#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 27050#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:53:12,258 INFO L134 CoverageAnalysis]: Checked inductivity of 4950 backedges. 0 proven. 4950 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:12,258 INFO L450 AbstractCegarLoop]: Interpolant automaton has 102 states [2018-07-23 13:53:12,259 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2018-07-23 13:53:12,259 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5151, Invalid=5151, Unknown=0, NotChecked=0, Total=10302 [2018-07-23 13:53:12,259 INFO L87 Difference]: Start difference. First operand 103 states and 103 transitions. Second operand 102 states. [2018-07-23 13:53:12,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:12,335 INFO L93 Difference]: Finished difference Result 106 states and 106 transitions. [2018-07-23 13:53:12,335 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2018-07-23 13:53:12,335 INFO L78 Accepts]: Start accepts. Automaton has 102 states. Word has length 102 [2018-07-23 13:53:12,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:12,336 INFO L225 Difference]: With dead ends: 106 [2018-07-23 13:53:12,336 INFO L226 Difference]: Without dead ends: 104 [2018-07-23 13:53:12,337 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=5151, Invalid=5151, Unknown=0, NotChecked=0, Total=10302 [2018-07-23 13:53:12,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2018-07-23 13:53:12,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2018-07-23 13:53:12,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2018-07-23 13:53:12,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 104 transitions. [2018-07-23 13:53:12,344 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 104 transitions. Word has length 102 [2018-07-23 13:53:12,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:12,344 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 104 transitions. [2018-07-23 13:53:12,344 INFO L472 AbstractCegarLoop]: Interpolant automaton has 102 states. [2018-07-23 13:53:12,344 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 104 transitions. [2018-07-23 13:53:12,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2018-07-23 13:53:12,345 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:12,345 INFO L357 BasicCegarLoop]: trace histogram [100, 1, 1, 1] [2018-07-23 13:53:12,345 INFO L414 AbstractCegarLoop]: === Iteration 101 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:12,345 INFO L82 PathProgramCache]: Analyzing trace with hash 1418080992, now seen corresponding path program 100 times [2018-07-23 13:53:12,346 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:12,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:13,726 INFO L134 CoverageAnalysis]: Checked inductivity of 5050 backedges. 0 proven. 5050 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:13,727 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:13,727 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [102] total 102 [2018-07-23 13:53:13,727 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:13,727 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 13:53:13,728 INFO L185 omatonBuilderFactory]: Interpolants [27471#true, 27472#false, 27473#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 27474#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 27475#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 27476#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 27477#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 27478#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 27479#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 27480#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 27481#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 27482#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 27483#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 27484#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 27485#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 27486#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 27487#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 27488#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 27489#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 27490#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 27491#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 27492#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 27493#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 27494#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 27495#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 27496#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 27497#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 27498#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 27499#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 27500#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 27501#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 27502#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 27503#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 27504#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 27505#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 27506#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 27507#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 27508#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 27509#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 27510#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 27511#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 27512#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 27513#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 27514#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 27515#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 27516#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 27517#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 27518#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 27519#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 27520#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 27521#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 27522#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 27523#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 27524#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 27525#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 27526#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 27527#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 27528#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 27529#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 27530#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 27531#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 27532#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 27533#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 27534#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 27535#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 27536#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 27537#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 27538#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 27539#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 27540#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 27541#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 27542#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 27543#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 27544#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 27545#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 27546#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 27547#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 27548#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 27549#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 27550#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 27551#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 27552#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 27553#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 27554#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 27555#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 27556#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 27557#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 27558#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 27559#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 27560#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 27561#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 27562#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 27563#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 27564#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 27565#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 27566#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 27567#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 27568#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 27569#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 27570#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 27571#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 27572#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 27573#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:53:13,728 INFO L134 CoverageAnalysis]: Checked inductivity of 5050 backedges. 0 proven. 5050 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:13,729 INFO L450 AbstractCegarLoop]: Interpolant automaton has 103 states [2018-07-23 13:53:13,729 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2018-07-23 13:53:13,730 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5253, Invalid=5253, Unknown=0, NotChecked=0, Total=10506 [2018-07-23 13:53:13,730 INFO L87 Difference]: Start difference. First operand 104 states and 104 transitions. Second operand 103 states. [2018-07-23 13:53:13,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:13,816 INFO L93 Difference]: Finished difference Result 107 states and 107 transitions. [2018-07-23 13:53:13,816 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2018-07-23 13:53:13,816 INFO L78 Accepts]: Start accepts. Automaton has 103 states. Word has length 103 [2018-07-23 13:53:13,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:13,817 INFO L225 Difference]: With dead ends: 107 [2018-07-23 13:53:13,817 INFO L226 Difference]: Without dead ends: 105 [2018-07-23 13:53:13,817 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=5253, Invalid=5253, Unknown=0, NotChecked=0, Total=10506 [2018-07-23 13:53:13,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2018-07-23 13:53:13,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2018-07-23 13:53:13,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2018-07-23 13:53:13,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 105 transitions. [2018-07-23 13:53:13,824 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 105 transitions. Word has length 103 [2018-07-23 13:53:13,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:13,824 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 105 transitions. [2018-07-23 13:53:13,824 INFO L472 AbstractCegarLoop]: Interpolant automaton has 103 states. [2018-07-23 13:53:13,824 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 105 transitions. [2018-07-23 13:53:13,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-07-23 13:53:13,825 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:13,825 INFO L357 BasicCegarLoop]: trace histogram [101, 1, 1, 1] [2018-07-23 13:53:13,825 INFO L414 AbstractCegarLoop]: === Iteration 102 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:13,826 INFO L82 PathProgramCache]: Analyzing trace with hash 1010833926, now seen corresponding path program 101 times [2018-07-23 13:53:13,826 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:13,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:15,401 INFO L134 CoverageAnalysis]: Checked inductivity of 5151 backedges. 0 proven. 5151 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:15,401 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:15,401 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [103] total 103 [2018-07-23 13:53:15,402 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:15,402 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 13:53:15,402 INFO L185 omatonBuilderFactory]: Interpolants [27998#true, 27999#false, 28000#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 28001#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 28002#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 28003#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 28004#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 28005#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 28006#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 28007#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 28008#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 28009#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 28010#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 28011#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 28012#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 28013#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 28014#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 28015#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 28016#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 28017#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 28018#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 28019#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 28020#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 28021#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 28022#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 28023#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 28024#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 28025#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 28026#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 28027#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 28028#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 28029#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 28030#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 28031#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 28032#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 28033#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 28034#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 28035#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 28036#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 28037#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 28038#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 28039#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 28040#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 28041#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 28042#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 28043#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 28044#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 28045#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 28046#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 28047#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 28048#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 28049#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 28050#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 28051#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 28052#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 28053#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 28054#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 28055#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 28056#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 28057#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 28058#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 28059#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 28060#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 28061#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 28062#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 28063#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 28064#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 28065#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 28066#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 28067#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 28068#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 28069#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 28070#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 28071#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 28072#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 28073#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 28074#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 28075#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 28076#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 28077#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 28078#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 28079#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 28080#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 28081#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 28082#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 28083#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 28084#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 28085#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 28086#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 28087#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 28088#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 28089#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 28090#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 28091#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 28092#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 28093#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 28094#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 28095#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 28096#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 28097#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 28098#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 28099#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 28100#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 28101#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:53:15,403 INFO L134 CoverageAnalysis]: Checked inductivity of 5151 backedges. 0 proven. 5151 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:15,403 INFO L450 AbstractCegarLoop]: Interpolant automaton has 104 states [2018-07-23 13:53:15,404 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 104 interpolants. [2018-07-23 13:53:15,404 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5356, Invalid=5356, Unknown=0, NotChecked=0, Total=10712 [2018-07-23 13:53:15,404 INFO L87 Difference]: Start difference. First operand 105 states and 105 transitions. Second operand 104 states. [2018-07-23 13:53:15,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:15,500 INFO L93 Difference]: Finished difference Result 108 states and 108 transitions. [2018-07-23 13:53:15,500 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2018-07-23 13:53:15,500 INFO L78 Accepts]: Start accepts. Automaton has 104 states. Word has length 104 [2018-07-23 13:53:15,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:15,501 INFO L225 Difference]: With dead ends: 108 [2018-07-23 13:53:15,501 INFO L226 Difference]: Without dead ends: 106 [2018-07-23 13:53:15,502 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=5356, Invalid=5356, Unknown=0, NotChecked=0, Total=10712 [2018-07-23 13:53:15,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2018-07-23 13:53:15,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2018-07-23 13:53:15,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2018-07-23 13:53:15,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 106 transitions. [2018-07-23 13:53:15,508 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 106 transitions. Word has length 104 [2018-07-23 13:53:15,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:15,509 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 106 transitions. [2018-07-23 13:53:15,509 INFO L472 AbstractCegarLoop]: Interpolant automaton has 104 states. [2018-07-23 13:53:15,509 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 106 transitions. [2018-07-23 13:53:15,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-07-23 13:53:15,509 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:15,509 INFO L357 BasicCegarLoop]: trace histogram [102, 1, 1, 1] [2018-07-23 13:53:15,509 INFO L414 AbstractCegarLoop]: === Iteration 103 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:15,510 INFO L82 PathProgramCache]: Analyzing trace with hash 1271076768, now seen corresponding path program 102 times [2018-07-23 13:53:15,510 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:15,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:16,752 INFO L134 CoverageAnalysis]: Checked inductivity of 5253 backedges. 0 proven. 5253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:16,753 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:16,753 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [104] total 104 [2018-07-23 13:53:16,753 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:16,753 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 13:53:16,753 INFO L185 omatonBuilderFactory]: Interpolants [28530#true, 28531#false, 28532#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 28533#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 28534#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 28535#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 28536#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 28537#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 28538#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 28539#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 28540#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 28541#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 28542#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 28543#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 28544#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 28545#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 28546#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 28547#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 28548#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 28549#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 28550#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 28551#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 28552#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 28553#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 28554#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 28555#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 28556#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 28557#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 28558#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 28559#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 28560#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 28561#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 28562#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 28563#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 28564#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 28565#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 28566#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 28567#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 28568#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 28569#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 28570#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 28571#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 28572#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 28573#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 28574#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 28575#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 28576#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 28577#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 28578#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 28579#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 28580#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 28581#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 28582#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 28583#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 28584#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 28585#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 28586#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 28587#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 28588#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 28589#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 28590#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 28591#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 28592#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 28593#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 28594#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 28595#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 28596#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 28597#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 28598#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 28599#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 28600#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 28601#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 28602#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 28603#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 28604#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 28605#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 28606#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 28607#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 28608#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 28609#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 28610#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 28611#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 28612#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 28613#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 28614#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 28615#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 28616#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 28617#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 28618#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 28619#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 28620#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 28621#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 28622#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 28623#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 28624#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 28625#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 28626#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 28627#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 28628#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 28629#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 28630#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 28631#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 28632#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 28633#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 28634#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:53:16,754 INFO L134 CoverageAnalysis]: Checked inductivity of 5253 backedges. 0 proven. 5253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:16,754 INFO L450 AbstractCegarLoop]: Interpolant automaton has 105 states [2018-07-23 13:53:16,755 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2018-07-23 13:53:16,755 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5460, Invalid=5460, Unknown=0, NotChecked=0, Total=10920 [2018-07-23 13:53:16,756 INFO L87 Difference]: Start difference. First operand 106 states and 106 transitions. Second operand 105 states. [2018-07-23 13:53:16,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:16,873 INFO L93 Difference]: Finished difference Result 109 states and 109 transitions. [2018-07-23 13:53:16,873 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2018-07-23 13:53:16,873 INFO L78 Accepts]: Start accepts. Automaton has 105 states. Word has length 105 [2018-07-23 13:53:16,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:16,874 INFO L225 Difference]: With dead ends: 109 [2018-07-23 13:53:16,874 INFO L226 Difference]: Without dead ends: 107 [2018-07-23 13:53:16,875 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=5460, Invalid=5460, Unknown=0, NotChecked=0, Total=10920 [2018-07-23 13:53:16,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2018-07-23 13:53:16,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2018-07-23 13:53:16,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2018-07-23 13:53:16,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 107 transitions. [2018-07-23 13:53:16,882 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 107 transitions. Word has length 105 [2018-07-23 13:53:16,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:16,883 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 107 transitions. [2018-07-23 13:53:16,883 INFO L472 AbstractCegarLoop]: Interpolant automaton has 105 states. [2018-07-23 13:53:16,883 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 107 transitions. [2018-07-23 13:53:16,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2018-07-23 13:53:16,884 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:16,884 INFO L357 BasicCegarLoop]: trace histogram [103, 1, 1, 1] [2018-07-23 13:53:16,884 INFO L414 AbstractCegarLoop]: === Iteration 104 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:16,884 INFO L82 PathProgramCache]: Analyzing trace with hash 748670278, now seen corresponding path program 103 times [2018-07-23 13:53:16,884 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:17,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:18,502 INFO L134 CoverageAnalysis]: Checked inductivity of 5356 backedges. 0 proven. 5356 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:18,503 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:18,503 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [105] total 105 [2018-07-23 13:53:18,503 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:18,503 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 13:53:18,504 INFO L185 omatonBuilderFactory]: Interpolants [29067#true, 29068#false, 29069#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 29070#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 29071#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 29072#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 29073#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 29074#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 29075#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 29076#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 29077#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 29078#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 29079#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 29080#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 29081#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 29082#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 29083#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 29084#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 29085#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 29086#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 29087#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 29088#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 29089#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 29090#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 29091#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 29092#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 29093#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 29094#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 29095#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 29096#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 29097#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 29098#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 29099#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 29100#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 29101#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 29102#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 29103#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 29104#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 29105#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 29106#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 29107#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 29108#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 29109#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 29110#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 29111#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 29112#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 29113#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 29114#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 29115#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 29116#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 29117#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 29118#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 29119#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 29120#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 29121#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 29122#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 29123#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 29124#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 29125#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 29126#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 29127#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 29128#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 29129#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 29130#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 29131#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 29132#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 29133#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 29134#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 29135#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 29136#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 29137#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 29138#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 29139#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 29140#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 29141#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 29142#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 29143#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 29144#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 29145#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 29146#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 29147#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 29148#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 29149#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 29150#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 29151#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 29152#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 29153#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 29154#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 29155#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 29156#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 29157#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 29158#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 29159#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 29160#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 29161#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 29162#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 29163#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 29164#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 29165#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 29166#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 29167#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 29168#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 29169#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 29170#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 29171#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 29172#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:53:18,504 INFO L134 CoverageAnalysis]: Checked inductivity of 5356 backedges. 0 proven. 5356 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:18,505 INFO L450 AbstractCegarLoop]: Interpolant automaton has 106 states [2018-07-23 13:53:18,506 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 106 interpolants. [2018-07-23 13:53:18,506 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5565, Invalid=5565, Unknown=0, NotChecked=0, Total=11130 [2018-07-23 13:53:18,507 INFO L87 Difference]: Start difference. First operand 107 states and 107 transitions. Second operand 106 states. [2018-07-23 13:53:18,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:18,677 INFO L93 Difference]: Finished difference Result 110 states and 110 transitions. [2018-07-23 13:53:18,677 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2018-07-23 13:53:18,677 INFO L78 Accepts]: Start accepts. Automaton has 106 states. Word has length 106 [2018-07-23 13:53:18,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:18,678 INFO L225 Difference]: With dead ends: 110 [2018-07-23 13:53:18,678 INFO L226 Difference]: Without dead ends: 108 [2018-07-23 13:53:18,679 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=5565, Invalid=5565, Unknown=0, NotChecked=0, Total=11130 [2018-07-23 13:53:18,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2018-07-23 13:53:18,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2018-07-23 13:53:18,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2018-07-23 13:53:18,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 108 transitions. [2018-07-23 13:53:18,686 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 108 transitions. Word has length 106 [2018-07-23 13:53:18,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:18,686 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 108 transitions. [2018-07-23 13:53:18,687 INFO L472 AbstractCegarLoop]: Interpolant automaton has 106 states. [2018-07-23 13:53:18,687 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 108 transitions. [2018-07-23 13:53:18,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2018-07-23 13:53:18,687 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:18,687 INFO L357 BasicCegarLoop]: trace histogram [104, 1, 1, 1] [2018-07-23 13:53:18,687 INFO L414 AbstractCegarLoop]: === Iteration 105 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:18,688 INFO L82 PathProgramCache]: Analyzing trace with hash 1733938272, now seen corresponding path program 104 times [2018-07-23 13:53:18,688 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:18,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:19,808 INFO L134 CoverageAnalysis]: Checked inductivity of 5460 backedges. 0 proven. 5460 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:19,808 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:19,808 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [106] total 106 [2018-07-23 13:53:19,808 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:19,808 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 13:53:19,809 INFO L185 omatonBuilderFactory]: Interpolants [29696#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 29697#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 29698#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 29699#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 29700#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 29701#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 29702#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 29703#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 29704#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 29705#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 29706#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 29707#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 29708#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 29709#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 29710#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 29711#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 29712#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 29713#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 29714#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 29715#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 29609#true, 29610#false, 29611#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 29612#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 29613#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 29614#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 29615#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 29616#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 29617#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 29618#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 29619#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 29620#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 29621#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 29622#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 29623#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 29624#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 29625#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 29626#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 29627#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 29628#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 29629#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 29630#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 29631#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 29632#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 29633#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 29634#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 29635#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 29636#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 29637#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 29638#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 29639#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 29640#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 29641#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 29642#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 29643#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 29644#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 29645#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 29646#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 29647#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 29648#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 29649#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 29650#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 29651#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 29652#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 29653#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 29654#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 29655#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 29656#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 29657#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 29658#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 29659#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 29660#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 29661#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 29662#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 29663#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 29664#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 29665#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 29666#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 29667#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 29668#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 29669#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 29670#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 29671#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 29672#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 29673#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 29674#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 29675#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 29676#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 29677#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 29678#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 29679#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 29680#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 29681#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 29682#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 29683#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 29684#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 29685#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 29686#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 29687#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 29688#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 29689#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 29690#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 29691#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 29692#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 29693#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 29694#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 29695#(and (<= (select main_a main_x) 84) (not (= main_x main_y)))] [2018-07-23 13:53:19,809 INFO L134 CoverageAnalysis]: Checked inductivity of 5460 backedges. 0 proven. 5460 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:19,809 INFO L450 AbstractCegarLoop]: Interpolant automaton has 107 states [2018-07-23 13:53:19,810 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 107 interpolants. [2018-07-23 13:53:19,810 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5671, Invalid=5671, Unknown=0, NotChecked=0, Total=11342 [2018-07-23 13:53:19,811 INFO L87 Difference]: Start difference. First operand 108 states and 108 transitions. Second operand 107 states. [2018-07-23 13:53:19,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:19,874 INFO L93 Difference]: Finished difference Result 111 states and 111 transitions. [2018-07-23 13:53:19,874 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2018-07-23 13:53:19,874 INFO L78 Accepts]: Start accepts. Automaton has 107 states. Word has length 107 [2018-07-23 13:53:19,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:19,875 INFO L225 Difference]: With dead ends: 111 [2018-07-23 13:53:19,875 INFO L226 Difference]: Without dead ends: 109 [2018-07-23 13:53:19,876 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=5671, Invalid=5671, Unknown=0, NotChecked=0, Total=11342 [2018-07-23 13:53:19,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2018-07-23 13:53:19,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2018-07-23 13:53:19,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2018-07-23 13:53:19,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 109 transitions. [2018-07-23 13:53:19,883 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 109 transitions. Word has length 107 [2018-07-23 13:53:19,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:19,883 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 109 transitions. [2018-07-23 13:53:19,883 INFO L472 AbstractCegarLoop]: Interpolant automaton has 107 states. [2018-07-23 13:53:19,883 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 109 transitions. [2018-07-23 13:53:19,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2018-07-23 13:53:19,884 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:19,884 INFO L357 BasicCegarLoop]: trace histogram [105, 1, 1, 1] [2018-07-23 13:53:19,884 INFO L414 AbstractCegarLoop]: === Iteration 106 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:19,885 INFO L82 PathProgramCache]: Analyzing trace with hash -2082492282, now seen corresponding path program 105 times [2018-07-23 13:53:19,885 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:20,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:21,140 INFO L134 CoverageAnalysis]: Checked inductivity of 5565 backedges. 0 proven. 5565 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:21,141 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:21,141 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [107] total 107 [2018-07-23 13:53:21,141 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:21,141 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 13:53:21,142 INFO L185 omatonBuilderFactory]: Interpolants [30208#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 30209#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 30210#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 30211#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 30212#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 30213#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 30214#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 30215#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 30216#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 30217#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 30218#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 30219#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 30220#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 30221#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 30222#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 30223#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 30224#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 30225#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 30226#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 30227#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 30228#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 30229#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 30230#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 30231#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 30232#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 30233#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 30234#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 30235#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 30236#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 30237#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 30238#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 30239#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 30240#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 30241#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 30242#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 30243#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 30244#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 30245#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 30246#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 30247#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 30248#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 30249#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 30250#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 30251#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 30252#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 30253#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 30254#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 30255#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 30256#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 30257#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 30258#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 30259#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 30260#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 30261#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 30262#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 30263#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 30156#true, 30157#false, 30158#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 30159#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 30160#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 30161#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 30162#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 30163#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 30164#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 30165#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 30166#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 30167#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 30168#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 30169#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 30170#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 30171#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 30172#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 30173#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 30174#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 30175#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 30176#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 30177#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 30178#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 30179#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 30180#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 30181#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 30182#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 30183#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 30184#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 30185#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 30186#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 30187#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 30188#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 30189#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 30190#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 30191#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 30192#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 30193#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 30194#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 30195#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 30196#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 30197#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 30198#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 30199#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 30200#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 30201#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 30202#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 30203#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 30204#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 30205#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 30206#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 30207#(and (<= (select main_a main_x) 49) (not (= main_x main_y)))] [2018-07-23 13:53:21,142 INFO L134 CoverageAnalysis]: Checked inductivity of 5565 backedges. 0 proven. 5565 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:21,142 INFO L450 AbstractCegarLoop]: Interpolant automaton has 108 states [2018-07-23 13:53:21,143 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 108 interpolants. [2018-07-23 13:53:21,143 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5778, Invalid=5778, Unknown=0, NotChecked=0, Total=11556 [2018-07-23 13:53:21,143 INFO L87 Difference]: Start difference. First operand 109 states and 109 transitions. Second operand 108 states. [2018-07-23 13:53:21,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:21,202 INFO L93 Difference]: Finished difference Result 112 states and 112 transitions. [2018-07-23 13:53:21,202 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2018-07-23 13:53:21,203 INFO L78 Accepts]: Start accepts. Automaton has 108 states. Word has length 108 [2018-07-23 13:53:21,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:21,203 INFO L225 Difference]: With dead ends: 112 [2018-07-23 13:53:21,203 INFO L226 Difference]: Without dead ends: 110 [2018-07-23 13:53:21,204 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=5778, Invalid=5778, Unknown=0, NotChecked=0, Total=11556 [2018-07-23 13:53:21,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2018-07-23 13:53:21,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2018-07-23 13:53:21,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2018-07-23 13:53:21,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 110 transitions. [2018-07-23 13:53:21,210 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 110 transitions. Word has length 108 [2018-07-23 13:53:21,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:21,210 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 110 transitions. [2018-07-23 13:53:21,210 INFO L472 AbstractCegarLoop]: Interpolant automaton has 108 states. [2018-07-23 13:53:21,210 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 110 transitions. [2018-07-23 13:53:21,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-07-23 13:53:21,211 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:21,211 INFO L357 BasicCegarLoop]: trace histogram [106, 1, 1, 1] [2018-07-23 13:53:21,211 INFO L414 AbstractCegarLoop]: === Iteration 107 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:21,211 INFO L82 PathProgramCache]: Analyzing trace with hash -132755168, now seen corresponding path program 106 times [2018-07-23 13:53:21,212 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:21,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:22,640 INFO L134 CoverageAnalysis]: Checked inductivity of 5671 backedges. 0 proven. 5671 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:22,640 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:22,640 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [108] total 108 [2018-07-23 13:53:22,640 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:22,640 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 13:53:22,641 INFO L185 omatonBuilderFactory]: Interpolants [30720#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 30721#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 30722#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 30723#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 30724#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 30725#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 30726#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 30727#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 30728#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 30729#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 30730#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 30731#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 30732#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 30733#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 30734#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 30735#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 30736#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 30737#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 30738#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 30739#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 30740#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 30741#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 30742#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 30743#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 30744#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 30745#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 30746#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 30747#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 30748#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 30749#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 30750#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 30751#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 30752#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 30753#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 30754#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 30755#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 30756#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 30757#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 30758#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 30759#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 30760#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 30761#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 30762#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 30763#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 30764#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 30765#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 30766#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 30767#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 30768#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 30769#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 30770#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 30771#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 30772#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 30773#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 30774#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 30775#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 30776#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 30777#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 30778#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 30779#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 30780#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 30781#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 30782#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 30783#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 30784#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 30785#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 30786#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 30787#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 30788#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 30789#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 30790#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 30791#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 30792#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 30793#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 30794#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 30795#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 30796#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 30797#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 30798#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 30799#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 30800#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 30801#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 30802#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 30803#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 30804#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 30805#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 30806#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 30807#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 30808#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 30809#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 30810#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 30811#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 30812#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 30813#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 30814#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 30815#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 30816#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 30708#true, 30709#false, 30710#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 30711#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 30712#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 30713#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 30714#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 30715#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 30716#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 30717#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 30718#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 30719#(and (not (= main_x main_y)) (<= (select main_a main_x) 9))] [2018-07-23 13:53:22,641 INFO L134 CoverageAnalysis]: Checked inductivity of 5671 backedges. 0 proven. 5671 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:22,641 INFO L450 AbstractCegarLoop]: Interpolant automaton has 109 states [2018-07-23 13:53:22,642 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 109 interpolants. [2018-07-23 13:53:22,643 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5886, Invalid=5886, Unknown=0, NotChecked=0, Total=11772 [2018-07-23 13:53:22,643 INFO L87 Difference]: Start difference. First operand 110 states and 110 transitions. Second operand 109 states. [2018-07-23 13:53:22,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:22,770 INFO L93 Difference]: Finished difference Result 113 states and 113 transitions. [2018-07-23 13:53:22,770 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2018-07-23 13:53:22,770 INFO L78 Accepts]: Start accepts. Automaton has 109 states. Word has length 109 [2018-07-23 13:53:22,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:22,770 INFO L225 Difference]: With dead ends: 113 [2018-07-23 13:53:22,770 INFO L226 Difference]: Without dead ends: 111 [2018-07-23 13:53:22,771 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=5886, Invalid=5886, Unknown=0, NotChecked=0, Total=11772 [2018-07-23 13:53:22,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2018-07-23 13:53:22,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2018-07-23 13:53:22,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2018-07-23 13:53:22,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 111 transitions. [2018-07-23 13:53:22,777 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 111 transitions. Word has length 109 [2018-07-23 13:53:22,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:22,777 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 111 transitions. [2018-07-23 13:53:22,777 INFO L472 AbstractCegarLoop]: Interpolant automaton has 109 states. [2018-07-23 13:53:22,777 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 111 transitions. [2018-07-23 13:53:22,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2018-07-23 13:53:22,777 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:22,778 INFO L357 BasicCegarLoop]: trace histogram [107, 1, 1, 1] [2018-07-23 13:53:22,778 INFO L414 AbstractCegarLoop]: === Iteration 108 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:22,778 INFO L82 PathProgramCache]: Analyzing trace with hash 179553222, now seen corresponding path program 107 times [2018-07-23 13:53:22,778 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:22,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:24,095 INFO L134 CoverageAnalysis]: Checked inductivity of 5778 backedges. 0 proven. 5778 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:24,096 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:24,096 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [109] total 109 [2018-07-23 13:53:24,096 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:24,096 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 13:53:24,097 INFO L185 omatonBuilderFactory]: Interpolants [31265#true, 31266#false, 31267#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 31268#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 31269#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 31270#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 31271#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 31272#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 31273#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 31274#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 31275#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 31276#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 31277#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 31278#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 31279#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 31280#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 31281#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 31282#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 31283#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 31284#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 31285#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 31286#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 31287#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 31288#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 31289#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 31290#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 31291#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 31292#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 31293#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 31294#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 31295#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 31296#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 31297#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 31298#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 31299#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 31300#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 31301#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 31302#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 31303#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 31304#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 31305#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 31306#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 31307#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 31308#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 31309#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 31310#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 31311#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 31312#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 31313#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 31314#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 31315#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 31316#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 31317#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 31318#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 31319#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 31320#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 31321#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 31322#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 31323#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 31324#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 31325#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 31326#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 31327#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 31328#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 31329#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 31330#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 31331#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 31332#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 31333#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 31334#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 31335#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 31336#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 31337#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 31338#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 31339#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 31340#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 31341#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 31342#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 31343#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 31344#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 31345#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 31346#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 31347#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 31348#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 31349#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 31350#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 31351#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 31352#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 31353#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 31354#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 31355#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 31356#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 31357#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 31358#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 31359#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 31360#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 31361#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 31362#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 31363#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 31364#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 31365#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 31366#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 31367#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 31368#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 31369#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 31370#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 31371#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 31372#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 31373#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 31374#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:53:24,097 INFO L134 CoverageAnalysis]: Checked inductivity of 5778 backedges. 0 proven. 5778 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:24,097 INFO L450 AbstractCegarLoop]: Interpolant automaton has 110 states [2018-07-23 13:53:24,098 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 110 interpolants. [2018-07-23 13:53:24,099 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5995, Invalid=5995, Unknown=0, NotChecked=0, Total=11990 [2018-07-23 13:53:24,099 INFO L87 Difference]: Start difference. First operand 111 states and 111 transitions. Second operand 110 states. [2018-07-23 13:53:24,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:24,234 INFO L93 Difference]: Finished difference Result 114 states and 114 transitions. [2018-07-23 13:53:24,234 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2018-07-23 13:53:24,234 INFO L78 Accepts]: Start accepts. Automaton has 110 states. Word has length 110 [2018-07-23 13:53:24,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:24,234 INFO L225 Difference]: With dead ends: 114 [2018-07-23 13:53:24,234 INFO L226 Difference]: Without dead ends: 112 [2018-07-23 13:53:24,235 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=5995, Invalid=5995, Unknown=0, NotChecked=0, Total=11990 [2018-07-23 13:53:24,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2018-07-23 13:53:24,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2018-07-23 13:53:24,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2018-07-23 13:53:24,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 112 transitions. [2018-07-23 13:53:24,242 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 112 transitions. Word has length 110 [2018-07-23 13:53:24,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:24,242 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 112 transitions. [2018-07-23 13:53:24,242 INFO L472 AbstractCegarLoop]: Interpolant automaton has 110 states. [2018-07-23 13:53:24,242 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 112 transitions. [2018-07-23 13:53:24,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-07-23 13:53:24,243 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:24,243 INFO L357 BasicCegarLoop]: trace histogram [108, 1, 1, 1] [2018-07-23 13:53:24,243 INFO L414 AbstractCegarLoop]: === Iteration 109 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:24,243 INFO L82 PathProgramCache]: Analyzing trace with hash 1271178720, now seen corresponding path program 108 times [2018-07-23 13:53:24,243 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:24,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:25,630 INFO L134 CoverageAnalysis]: Checked inductivity of 5886 backedges. 0 proven. 5886 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:25,631 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:25,631 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [110] total 110 [2018-07-23 13:53:25,631 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:25,631 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 13:53:25,632 INFO L185 omatonBuilderFactory]: Interpolants [31827#true, 31828#false, 31829#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 31830#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 31831#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 31832#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 31833#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 31834#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 31835#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 31836#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 31837#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 31838#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 31839#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 31840#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 31841#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 31842#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 31843#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 31844#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 31845#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 31846#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 31847#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 31848#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 31849#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 31850#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 31851#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 31852#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 31853#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 31854#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 31855#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 31856#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 31857#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 31858#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 31859#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 31860#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 31861#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 31862#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 31863#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 31864#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 31865#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 31866#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 31867#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 31868#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 31869#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 31870#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 31871#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 31872#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 31873#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 31874#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 31875#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 31876#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 31877#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 31878#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 31879#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 31880#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 31881#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 31882#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 31883#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 31884#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 31885#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 31886#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 31887#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 31888#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 31889#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 31890#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 31891#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 31892#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 31893#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 31894#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 31895#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 31896#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 31897#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 31898#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 31899#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 31900#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 31901#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 31902#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 31903#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 31904#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 31905#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 31906#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 31907#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 31908#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 31909#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 31910#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 31911#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 31912#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 31913#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 31914#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 31915#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 31916#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 31917#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 31918#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 31919#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 31920#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 31921#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 31922#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 31923#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 31924#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 31925#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 31926#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 31927#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 31928#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 31929#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 31930#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 31931#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 31932#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 31933#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 31934#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 31935#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 31936#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 31937#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:53:25,632 INFO L134 CoverageAnalysis]: Checked inductivity of 5886 backedges. 0 proven. 5886 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:25,632 INFO L450 AbstractCegarLoop]: Interpolant automaton has 111 states [2018-07-23 13:53:25,634 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 111 interpolants. [2018-07-23 13:53:25,634 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6105, Invalid=6105, Unknown=0, NotChecked=0, Total=12210 [2018-07-23 13:53:25,635 INFO L87 Difference]: Start difference. First operand 112 states and 112 transitions. Second operand 111 states. [2018-07-23 13:53:25,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:25,742 INFO L93 Difference]: Finished difference Result 115 states and 115 transitions. [2018-07-23 13:53:25,742 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2018-07-23 13:53:25,742 INFO L78 Accepts]: Start accepts. Automaton has 111 states. Word has length 111 [2018-07-23 13:53:25,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:25,743 INFO L225 Difference]: With dead ends: 115 [2018-07-23 13:53:25,743 INFO L226 Difference]: Without dead ends: 113 [2018-07-23 13:53:25,744 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=6105, Invalid=6105, Unknown=0, NotChecked=0, Total=12210 [2018-07-23 13:53:25,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2018-07-23 13:53:25,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2018-07-23 13:53:25,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2018-07-23 13:53:25,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 113 transitions. [2018-07-23 13:53:25,751 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 113 transitions. Word has length 111 [2018-07-23 13:53:25,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:25,751 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 113 transitions. [2018-07-23 13:53:25,751 INFO L472 AbstractCegarLoop]: Interpolant automaton has 111 states. [2018-07-23 13:53:25,751 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 113 transitions. [2018-07-23 13:53:25,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2018-07-23 13:53:25,752 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:25,752 INFO L357 BasicCegarLoop]: trace histogram [109, 1, 1, 1] [2018-07-23 13:53:25,752 INFO L414 AbstractCegarLoop]: === Iteration 110 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:25,752 INFO L82 PathProgramCache]: Analyzing trace with hash 751830790, now seen corresponding path program 109 times [2018-07-23 13:53:25,753 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:25,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:27,284 INFO L134 CoverageAnalysis]: Checked inductivity of 5995 backedges. 0 proven. 5995 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:27,284 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:27,284 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [111] total 111 [2018-07-23 13:53:27,285 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:27,285 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 13:53:27,285 INFO L185 omatonBuilderFactory]: Interpolants [32394#true, 32395#false, 32396#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 32397#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 32398#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 32399#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 32400#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 32401#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 32402#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 32403#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 32404#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 32405#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 32406#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 32407#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 32408#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 32409#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 32410#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 32411#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 32412#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 32413#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 32414#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 32415#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 32416#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 32417#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 32418#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 32419#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 32420#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 32421#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 32422#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 32423#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 32424#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 32425#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 32426#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 32427#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 32428#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 32429#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 32430#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 32431#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 32432#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 32433#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 32434#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 32435#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 32436#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 32437#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 32438#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 32439#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 32440#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 32441#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 32442#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 32443#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 32444#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 32445#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 32446#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 32447#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 32448#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 32449#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 32450#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 32451#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 32452#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 32453#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 32454#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 32455#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 32456#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 32457#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 32458#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 32459#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 32460#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 32461#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 32462#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 32463#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 32464#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 32465#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 32466#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 32467#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 32468#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 32469#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 32470#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 32471#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 32472#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 32473#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 32474#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 32475#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 32476#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 32477#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 32478#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 32479#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 32480#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 32481#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 32482#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 32483#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 32484#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 32485#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 32486#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 32487#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 32488#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 32489#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 32490#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 32491#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 32492#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 32493#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 32494#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 32495#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 32496#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 32497#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 32498#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 32499#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 32500#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 32501#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 32502#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 32503#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 32504#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 32505#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:53:27,286 INFO L134 CoverageAnalysis]: Checked inductivity of 5995 backedges. 0 proven. 5995 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:27,286 INFO L450 AbstractCegarLoop]: Interpolant automaton has 112 states [2018-07-23 13:53:27,287 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 112 interpolants. [2018-07-23 13:53:27,288 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6216, Invalid=6216, Unknown=0, NotChecked=0, Total=12432 [2018-07-23 13:53:27,288 INFO L87 Difference]: Start difference. First operand 113 states and 113 transitions. Second operand 112 states. [2018-07-23 13:53:27,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:27,495 INFO L93 Difference]: Finished difference Result 116 states and 116 transitions. [2018-07-23 13:53:27,495 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2018-07-23 13:53:27,495 INFO L78 Accepts]: Start accepts. Automaton has 112 states. Word has length 112 [2018-07-23 13:53:27,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:27,496 INFO L225 Difference]: With dead ends: 116 [2018-07-23 13:53:27,496 INFO L226 Difference]: Without dead ends: 114 [2018-07-23 13:53:27,496 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=6216, Invalid=6216, Unknown=0, NotChecked=0, Total=12432 [2018-07-23 13:53:27,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2018-07-23 13:53:27,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2018-07-23 13:53:27,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2018-07-23 13:53:27,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 114 transitions. [2018-07-23 13:53:27,503 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 114 transitions. Word has length 112 [2018-07-23 13:53:27,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:27,503 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 114 transitions. [2018-07-23 13:53:27,503 INFO L472 AbstractCegarLoop]: Interpolant automaton has 112 states. [2018-07-23 13:53:27,503 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 114 transitions. [2018-07-23 13:53:27,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2018-07-23 13:53:27,504 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:27,504 INFO L357 BasicCegarLoop]: trace histogram [110, 1, 1, 1] [2018-07-23 13:53:27,504 INFO L414 AbstractCegarLoop]: === Iteration 111 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:27,504 INFO L82 PathProgramCache]: Analyzing trace with hash 1831914144, now seen corresponding path program 110 times [2018-07-23 13:53:27,505 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:27,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:28,906 INFO L134 CoverageAnalysis]: Checked inductivity of 6105 backedges. 0 proven. 6105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:28,907 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:28,907 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [112] total 112 [2018-07-23 13:53:28,907 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:28,908 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 13:53:28,908 INFO L185 omatonBuilderFactory]: Interpolants [33024#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 33025#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 33026#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 33027#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 33028#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 33029#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 33030#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 33031#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 33032#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 33033#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 33034#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 33035#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 33036#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 33037#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 33038#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 33039#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 33040#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 33041#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 33042#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 33043#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 33044#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 33045#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 33046#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 33047#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 33048#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 33049#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 33050#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 33051#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 33052#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 33053#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 33054#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 33055#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 33056#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 33057#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 33058#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 33059#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 33060#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 33061#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 33062#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 33063#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 33064#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 33065#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 33066#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 33067#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 33068#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 33069#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 33070#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 33071#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 33072#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 33073#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 33074#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 33075#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 33076#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 33077#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 33078#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 32966#true, 32967#false, 32968#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 32969#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 32970#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 32971#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 32972#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 32973#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 32974#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 32975#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 32976#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 32977#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 32978#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 32979#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 32980#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 32981#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 32982#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 32983#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 32984#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 32985#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 32986#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 32987#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 32988#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 32989#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 32990#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 32991#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 32992#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 32993#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 32994#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 32995#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 32996#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 32997#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 32998#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 32999#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 33000#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 33001#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 33002#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 33003#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 33004#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 33005#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 33006#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 33007#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 33008#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 33009#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 33010#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 33011#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 33012#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 33013#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 33014#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 33015#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 33016#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 33017#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 33018#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 33019#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 33020#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 33021#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 33022#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 33023#(and (<= (select main_a main_x) 55) (not (= main_x main_y)))] [2018-07-23 13:53:28,909 INFO L134 CoverageAnalysis]: Checked inductivity of 6105 backedges. 0 proven. 6105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:28,909 INFO L450 AbstractCegarLoop]: Interpolant automaton has 113 states [2018-07-23 13:53:28,910 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 113 interpolants. [2018-07-23 13:53:28,911 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6328, Invalid=6328, Unknown=0, NotChecked=0, Total=12656 [2018-07-23 13:53:28,911 INFO L87 Difference]: Start difference. First operand 114 states and 114 transitions. Second operand 113 states. [2018-07-23 13:53:28,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:28,989 INFO L93 Difference]: Finished difference Result 117 states and 117 transitions. [2018-07-23 13:53:28,989 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2018-07-23 13:53:28,989 INFO L78 Accepts]: Start accepts. Automaton has 113 states. Word has length 113 [2018-07-23 13:53:28,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:28,989 INFO L225 Difference]: With dead ends: 117 [2018-07-23 13:53:28,989 INFO L226 Difference]: Without dead ends: 115 [2018-07-23 13:53:28,990 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=6328, Invalid=6328, Unknown=0, NotChecked=0, Total=12656 [2018-07-23 13:53:28,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2018-07-23 13:53:28,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2018-07-23 13:53:28,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2018-07-23 13:53:28,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 115 transitions. [2018-07-23 13:53:28,995 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 115 transitions. Word has length 113 [2018-07-23 13:53:28,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:28,996 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 115 transitions. [2018-07-23 13:53:28,996 INFO L472 AbstractCegarLoop]: Interpolant automaton has 113 states. [2018-07-23 13:53:28,996 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 115 transitions. [2018-07-23 13:53:28,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2018-07-23 13:53:28,996 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:28,996 INFO L357 BasicCegarLoop]: trace histogram [111, 1, 1, 1] [2018-07-23 13:53:28,996 INFO L414 AbstractCegarLoop]: === Iteration 112 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:28,996 INFO L82 PathProgramCache]: Analyzing trace with hash 954759750, now seen corresponding path program 111 times [2018-07-23 13:53:28,996 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:29,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:30,450 INFO L134 CoverageAnalysis]: Checked inductivity of 6216 backedges. 0 proven. 6216 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:30,450 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:30,450 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [113] total 113 [2018-07-23 13:53:30,450 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:30,450 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 13:53:30,451 INFO L185 omatonBuilderFactory]: Interpolants [33543#true, 33544#false, 33545#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 33546#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 33547#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 33548#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 33549#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 33550#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 33551#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 33552#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 33553#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 33554#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 33555#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 33556#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 33557#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 33558#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 33559#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 33560#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 33561#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 33562#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 33563#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 33564#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 33565#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 33566#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 33567#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 33568#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 33569#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 33570#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 33571#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 33572#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 33573#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 33574#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 33575#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 33576#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 33577#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 33578#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 33579#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 33580#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 33581#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 33582#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 33583#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 33584#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 33585#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 33586#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 33587#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 33588#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 33589#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 33590#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 33591#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 33592#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 33593#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 33594#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 33595#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 33596#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 33597#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 33598#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 33599#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 33600#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 33601#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 33602#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 33603#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 33604#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 33605#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 33606#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 33607#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 33608#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 33609#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 33610#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 33611#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 33612#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 33613#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 33614#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 33615#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 33616#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 33617#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 33618#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 33619#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 33620#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 33621#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 33622#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 33623#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 33624#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 33625#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 33626#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 33627#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 33628#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 33629#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 33630#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 33631#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 33632#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 33633#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 33634#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 33635#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 33636#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 33637#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 33638#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 33639#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 33640#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 33641#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 33642#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 33643#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 33644#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 33645#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 33646#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 33647#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 33648#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 33649#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 33650#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 33651#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 33652#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 33653#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 33654#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 33655#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 33656#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:53:30,451 INFO L134 CoverageAnalysis]: Checked inductivity of 6216 backedges. 0 proven. 6216 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:30,451 INFO L450 AbstractCegarLoop]: Interpolant automaton has 114 states [2018-07-23 13:53:30,452 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 114 interpolants. [2018-07-23 13:53:30,453 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6441, Invalid=6441, Unknown=0, NotChecked=0, Total=12882 [2018-07-23 13:53:30,453 INFO L87 Difference]: Start difference. First operand 115 states and 115 transitions. Second operand 114 states. [2018-07-23 13:53:30,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:30,609 INFO L93 Difference]: Finished difference Result 118 states and 118 transitions. [2018-07-23 13:53:30,609 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2018-07-23 13:53:30,610 INFO L78 Accepts]: Start accepts. Automaton has 114 states. Word has length 114 [2018-07-23 13:53:30,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:30,610 INFO L225 Difference]: With dead ends: 118 [2018-07-23 13:53:30,610 INFO L226 Difference]: Without dead ends: 116 [2018-07-23 13:53:30,611 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=6441, Invalid=6441, Unknown=0, NotChecked=0, Total=12882 [2018-07-23 13:53:30,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2018-07-23 13:53:30,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2018-07-23 13:53:30,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2018-07-23 13:53:30,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 116 transitions. [2018-07-23 13:53:30,617 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 116 transitions. Word has length 114 [2018-07-23 13:53:30,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:30,618 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 116 transitions. [2018-07-23 13:53:30,618 INFO L472 AbstractCegarLoop]: Interpolant automaton has 114 states. [2018-07-23 13:53:30,618 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 116 transitions. [2018-07-23 13:53:30,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-07-23 13:53:30,618 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:30,619 INFO L357 BasicCegarLoop]: trace histogram [112, 1, 1, 1] [2018-07-23 13:53:30,619 INFO L414 AbstractCegarLoop]: === Iteration 113 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:30,619 INFO L82 PathProgramCache]: Analyzing trace with hash -467222688, now seen corresponding path program 112 times [2018-07-23 13:53:30,619 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:30,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:32,087 INFO L134 CoverageAnalysis]: Checked inductivity of 6328 backedges. 0 proven. 6328 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:32,088 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:32,088 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [114] total 114 [2018-07-23 13:53:32,088 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:32,088 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 13:53:32,088 INFO L185 omatonBuilderFactory]: Interpolants [34125#true, 34126#false, 34127#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 34128#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 34129#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 34130#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 34131#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 34132#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 34133#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 34134#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 34135#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 34136#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 34137#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 34138#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 34139#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 34140#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 34141#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 34142#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 34143#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 34144#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 34145#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 34146#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 34147#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 34148#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 34149#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 34150#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 34151#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 34152#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 34153#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 34154#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 34155#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 34156#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 34157#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 34158#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 34159#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 34160#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 34161#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 34162#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 34163#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 34164#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 34165#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 34166#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 34167#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 34168#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 34169#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 34170#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 34171#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 34172#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 34173#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 34174#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 34175#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 34176#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 34177#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 34178#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 34179#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 34180#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 34181#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 34182#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 34183#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 34184#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 34185#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 34186#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 34187#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 34188#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 34189#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 34190#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 34191#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 34192#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 34193#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 34194#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 34195#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 34196#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 34197#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 34198#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 34199#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 34200#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 34201#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 34202#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 34203#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 34204#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 34205#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 34206#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 34207#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 34208#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 34209#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 34210#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 34211#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 34212#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 34213#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 34214#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 34215#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 34216#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 34217#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 34218#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 34219#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 34220#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 34221#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 34222#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 34223#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 34224#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 34225#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 34226#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 34227#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 34228#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 34229#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 34230#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 34231#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 34232#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 34233#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 34234#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 34235#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 34236#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 34237#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 34238#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 34239#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:53:32,089 INFO L134 CoverageAnalysis]: Checked inductivity of 6328 backedges. 0 proven. 6328 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:32,089 INFO L450 AbstractCegarLoop]: Interpolant automaton has 115 states [2018-07-23 13:53:32,089 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 115 interpolants. [2018-07-23 13:53:32,090 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6555, Invalid=6555, Unknown=0, NotChecked=0, Total=13110 [2018-07-23 13:53:32,090 INFO L87 Difference]: Start difference. First operand 116 states and 116 transitions. Second operand 115 states. [2018-07-23 13:53:32,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:32,187 INFO L93 Difference]: Finished difference Result 119 states and 119 transitions. [2018-07-23 13:53:32,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2018-07-23 13:53:32,188 INFO L78 Accepts]: Start accepts. Automaton has 115 states. Word has length 115 [2018-07-23 13:53:32,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:32,188 INFO L225 Difference]: With dead ends: 119 [2018-07-23 13:53:32,188 INFO L226 Difference]: Without dead ends: 117 [2018-07-23 13:53:32,189 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=6555, Invalid=6555, Unknown=0, NotChecked=0, Total=13110 [2018-07-23 13:53:32,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2018-07-23 13:53:32,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2018-07-23 13:53:32,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2018-07-23 13:53:32,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 117 transitions. [2018-07-23 13:53:32,195 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 117 transitions. Word has length 115 [2018-07-23 13:53:32,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:32,195 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 117 transitions. [2018-07-23 13:53:32,195 INFO L472 AbstractCegarLoop]: Interpolant automaton has 115 states. [2018-07-23 13:53:32,195 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 117 transitions. [2018-07-23 13:53:32,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2018-07-23 13:53:32,196 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:32,196 INFO L357 BasicCegarLoop]: trace histogram [113, 1, 1, 1] [2018-07-23 13:53:32,196 INFO L414 AbstractCegarLoop]: === Iteration 114 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:32,196 INFO L82 PathProgramCache]: Analyzing trace with hash -1599005306, now seen corresponding path program 113 times [2018-07-23 13:53:32,197 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:32,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:33,483 INFO L134 CoverageAnalysis]: Checked inductivity of 6441 backedges. 0 proven. 6441 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:33,483 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:33,483 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [115] total 115 [2018-07-23 13:53:33,483 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:33,483 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 13:53:33,484 INFO L185 omatonBuilderFactory]: Interpolants [34816#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 34817#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 34818#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 34819#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 34820#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 34821#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 34822#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 34823#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 34824#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 34825#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 34826#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 34827#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 34712#true, 34713#false, 34714#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 34715#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 34716#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 34717#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 34718#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 34719#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 34720#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 34721#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 34722#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 34723#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 34724#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 34725#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 34726#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 34727#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 34728#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 34729#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 34730#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 34731#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 34732#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 34733#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 34734#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 34735#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 34736#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 34737#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 34738#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 34739#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 34740#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 34741#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 34742#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 34743#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 34744#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 34745#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 34746#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 34747#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 34748#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 34749#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 34750#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 34751#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 34752#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 34753#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 34754#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 34755#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 34756#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 34757#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 34758#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 34759#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 34760#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 34761#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 34762#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 34763#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 34764#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 34765#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 34766#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 34767#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 34768#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 34769#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 34770#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 34771#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 34772#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 34773#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 34774#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 34775#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 34776#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 34777#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 34778#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 34779#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 34780#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 34781#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 34782#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 34783#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 34784#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 34785#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 34786#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 34787#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 34788#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 34789#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 34790#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 34791#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 34792#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 34793#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 34794#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 34795#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 34796#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 34797#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 34798#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 34799#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 34800#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 34801#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 34802#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 34803#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 34804#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 34805#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 34806#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 34807#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 34808#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 34809#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 34810#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 34811#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 34812#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 34813#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 34814#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 34815#(and (<= (select main_a main_x) 101) (not (= main_x main_y)))] [2018-07-23 13:53:33,484 INFO L134 CoverageAnalysis]: Checked inductivity of 6441 backedges. 0 proven. 6441 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:33,484 INFO L450 AbstractCegarLoop]: Interpolant automaton has 116 states [2018-07-23 13:53:33,485 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 116 interpolants. [2018-07-23 13:53:33,486 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6670, Invalid=6670, Unknown=0, NotChecked=0, Total=13340 [2018-07-23 13:53:33,486 INFO L87 Difference]: Start difference. First operand 117 states and 117 transitions. Second operand 116 states. [2018-07-23 13:53:33,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:33,582 INFO L93 Difference]: Finished difference Result 120 states and 120 transitions. [2018-07-23 13:53:33,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2018-07-23 13:53:33,582 INFO L78 Accepts]: Start accepts. Automaton has 116 states. Word has length 116 [2018-07-23 13:53:33,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:33,583 INFO L225 Difference]: With dead ends: 120 [2018-07-23 13:53:33,583 INFO L226 Difference]: Without dead ends: 118 [2018-07-23 13:53:33,584 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=6670, Invalid=6670, Unknown=0, NotChecked=0, Total=13340 [2018-07-23 13:53:33,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2018-07-23 13:53:33,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2018-07-23 13:53:33,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2018-07-23 13:53:33,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 118 transitions. [2018-07-23 13:53:33,590 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 118 transitions. Word has length 116 [2018-07-23 13:53:33,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:33,590 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 118 transitions. [2018-07-23 13:53:33,590 INFO L472 AbstractCegarLoop]: Interpolant automaton has 116 states. [2018-07-23 13:53:33,590 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 118 transitions. [2018-07-23 13:53:33,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-07-23 13:53:33,590 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:33,590 INFO L357 BasicCegarLoop]: trace histogram [114, 1, 1, 1] [2018-07-23 13:53:33,590 INFO L414 AbstractCegarLoop]: === Iteration 115 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:33,591 INFO L82 PathProgramCache]: Analyzing trace with hash 1970439200, now seen corresponding path program 114 times [2018-07-23 13:53:33,591 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:33,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:35,004 INFO L134 CoverageAnalysis]: Checked inductivity of 6555 backedges. 0 proven. 6555 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:35,005 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:35,005 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [116] total 116 [2018-07-23 13:53:35,005 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:35,005 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 13:53:35,006 INFO L185 omatonBuilderFactory]: Interpolants [35328#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 35329#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 35330#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 35331#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 35332#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 35333#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 35334#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 35335#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 35336#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 35337#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 35338#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 35339#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 35340#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 35341#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 35342#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 35343#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 35344#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 35345#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 35346#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 35347#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 35348#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 35349#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 35350#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 35351#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 35352#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 35353#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 35354#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 35355#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 35356#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 35357#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 35358#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 35359#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 35360#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 35361#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 35362#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 35363#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 35364#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 35365#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 35366#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 35367#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 35368#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 35369#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 35370#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 35371#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 35372#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 35373#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 35374#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 35375#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 35376#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 35377#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 35378#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 35379#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 35380#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 35381#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 35382#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 35383#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 35384#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 35385#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 35386#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 35387#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 35388#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 35389#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 35390#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 35391#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 35392#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 35393#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 35394#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 35395#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 35396#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 35397#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 35398#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 35399#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 35400#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 35401#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 35402#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 35403#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 35404#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 35405#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 35406#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 35407#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 35408#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 35409#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 35410#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 35411#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 35412#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 35413#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 35414#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 35415#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 35416#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 35417#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 35418#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 35419#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 35420#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 35304#true, 35305#false, 35306#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 35307#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 35308#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 35309#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 35310#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 35311#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 35312#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 35313#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 35314#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 35315#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 35316#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 35317#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 35318#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 35319#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 35320#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 35321#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 35322#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 35323#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 35324#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 35325#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 35326#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 35327#(and (<= (select main_a main_x) 21) (not (= main_x main_y)))] [2018-07-23 13:53:35,006 INFO L134 CoverageAnalysis]: Checked inductivity of 6555 backedges. 0 proven. 6555 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:35,012 INFO L450 AbstractCegarLoop]: Interpolant automaton has 117 states [2018-07-23 13:53:35,013 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 117 interpolants. [2018-07-23 13:53:35,014 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6786, Invalid=6786, Unknown=0, NotChecked=0, Total=13572 [2018-07-23 13:53:35,014 INFO L87 Difference]: Start difference. First operand 118 states and 118 transitions. Second operand 117 states. [2018-07-23 13:53:35,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:35,131 INFO L93 Difference]: Finished difference Result 121 states and 121 transitions. [2018-07-23 13:53:35,131 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2018-07-23 13:53:35,131 INFO L78 Accepts]: Start accepts. Automaton has 117 states. Word has length 117 [2018-07-23 13:53:35,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:35,131 INFO L225 Difference]: With dead ends: 121 [2018-07-23 13:53:35,131 INFO L226 Difference]: Without dead ends: 119 [2018-07-23 13:53:35,132 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=6786, Invalid=6786, Unknown=0, NotChecked=0, Total=13572 [2018-07-23 13:53:35,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2018-07-23 13:53:35,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2018-07-23 13:53:35,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2018-07-23 13:53:35,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 119 transitions. [2018-07-23 13:53:35,138 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 119 transitions. Word has length 117 [2018-07-23 13:53:35,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:35,138 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 119 transitions. [2018-07-23 13:53:35,138 INFO L472 AbstractCegarLoop]: Interpolant automaton has 117 states. [2018-07-23 13:53:35,138 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 119 transitions. [2018-07-23 13:53:35,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2018-07-23 13:53:35,138 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:35,139 INFO L357 BasicCegarLoop]: trace histogram [115, 1, 1, 1] [2018-07-23 13:53:35,139 INFO L414 AbstractCegarLoop]: === Iteration 116 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:35,139 INFO L82 PathProgramCache]: Analyzing trace with hash 954069190, now seen corresponding path program 115 times [2018-07-23 13:53:35,139 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:35,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:36,585 INFO L134 CoverageAnalysis]: Checked inductivity of 6670 backedges. 0 proven. 6670 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:36,586 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:36,586 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [117] total 117 [2018-07-23 13:53:36,586 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:36,586 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 13:53:36,586 INFO L185 omatonBuilderFactory]: Interpolants [35901#true, 35902#false, 35903#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 35904#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 35905#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 35906#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 35907#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 35908#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 35909#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 35910#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 35911#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 35912#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 35913#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 35914#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 35915#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 35916#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 35917#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 35918#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 35919#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 35920#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 35921#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 35922#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 35923#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 35924#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 35925#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 35926#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 35927#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 35928#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 35929#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 35930#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 35931#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 35932#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 35933#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 35934#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 35935#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 35936#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 35937#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 35938#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 35939#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 35940#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 35941#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 35942#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 35943#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 35944#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 35945#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 35946#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 35947#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 35948#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 35949#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 35950#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 35951#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 35952#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 35953#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 35954#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 35955#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 35956#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 35957#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 35958#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 35959#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 35960#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 35961#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 35962#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 35963#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 35964#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 35965#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 35966#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 35967#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 35968#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 35969#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 35970#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 35971#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 35972#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 35973#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 35974#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 35975#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 35976#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 35977#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 35978#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 35979#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 35980#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 35981#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 35982#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 35983#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 35984#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 35985#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 35986#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 35987#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 35988#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 35989#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 35990#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 35991#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 35992#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 35993#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 35994#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 35995#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 35996#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 35997#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 35998#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 35999#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 36000#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 36001#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 36002#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 36003#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 36004#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 36005#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 36006#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 36007#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 36008#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 36009#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 36010#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 36011#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 36012#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 36013#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 36014#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 36015#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 36016#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 36017#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 36018#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:53:36,587 INFO L134 CoverageAnalysis]: Checked inductivity of 6670 backedges. 0 proven. 6670 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:36,587 INFO L450 AbstractCegarLoop]: Interpolant automaton has 118 states [2018-07-23 13:53:36,588 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 118 interpolants. [2018-07-23 13:53:36,588 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6903, Invalid=6903, Unknown=0, NotChecked=0, Total=13806 [2018-07-23 13:53:36,588 INFO L87 Difference]: Start difference. First operand 119 states and 119 transitions. Second operand 118 states. [2018-07-23 13:53:36,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:36,751 INFO L93 Difference]: Finished difference Result 122 states and 122 transitions. [2018-07-23 13:53:36,751 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2018-07-23 13:53:36,752 INFO L78 Accepts]: Start accepts. Automaton has 118 states. Word has length 118 [2018-07-23 13:53:36,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:36,752 INFO L225 Difference]: With dead ends: 122 [2018-07-23 13:53:36,752 INFO L226 Difference]: Without dead ends: 120 [2018-07-23 13:53:36,753 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=6903, Invalid=6903, Unknown=0, NotChecked=0, Total=13806 [2018-07-23 13:53:36,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2018-07-23 13:53:36,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2018-07-23 13:53:36,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2018-07-23 13:53:36,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 120 transitions. [2018-07-23 13:53:36,760 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 120 transitions. Word has length 118 [2018-07-23 13:53:36,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:36,760 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 120 transitions. [2018-07-23 13:53:36,760 INFO L472 AbstractCegarLoop]: Interpolant automaton has 118 states. [2018-07-23 13:53:36,760 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 120 transitions. [2018-07-23 13:53:36,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2018-07-23 13:53:36,761 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:36,761 INFO L357 BasicCegarLoop]: trace histogram [116, 1, 1, 1] [2018-07-23 13:53:36,761 INFO L414 AbstractCegarLoop]: === Iteration 117 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:36,761 INFO L82 PathProgramCache]: Analyzing trace with hash -488630048, now seen corresponding path program 116 times [2018-07-23 13:53:36,761 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:36,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:38,207 INFO L134 CoverageAnalysis]: Checked inductivity of 6786 backedges. 0 proven. 6786 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:38,207 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:38,208 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [118] total 118 [2018-07-23 13:53:38,208 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:38,208 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 13:53:38,208 INFO L185 omatonBuilderFactory]: Interpolants [36608#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 36609#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 36610#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 36611#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 36612#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 36613#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 36614#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 36615#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 36616#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 36617#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 36618#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 36619#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 36620#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 36621#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 36503#true, 36504#false, 36505#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 36506#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 36507#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 36508#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 36509#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 36510#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 36511#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 36512#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 36513#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 36514#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 36515#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 36516#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 36517#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 36518#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 36519#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 36520#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 36521#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 36522#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 36523#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 36524#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 36525#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 36526#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 36527#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 36528#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 36529#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 36530#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 36531#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 36532#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 36533#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 36534#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 36535#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 36536#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 36537#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 36538#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 36539#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 36540#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 36541#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 36542#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 36543#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 36544#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 36545#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 36546#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 36547#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 36548#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 36549#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 36550#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 36551#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 36552#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 36553#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 36554#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 36555#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 36556#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 36557#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 36558#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 36559#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 36560#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 36561#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 36562#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 36563#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 36564#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 36565#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 36566#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 36567#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 36568#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 36569#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 36570#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 36571#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 36572#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 36573#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 36574#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 36575#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 36576#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 36577#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 36578#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 36579#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 36580#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 36581#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 36582#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 36583#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 36584#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 36585#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 36586#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 36587#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 36588#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 36589#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 36590#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 36591#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 36592#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 36593#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 36594#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 36595#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 36596#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 36597#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 36598#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 36599#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 36600#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 36601#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 36602#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 36603#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 36604#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 36605#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 36606#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 36607#(and (not (= main_x main_y)) (<= (select main_a main_x) 102))] [2018-07-23 13:53:38,209 INFO L134 CoverageAnalysis]: Checked inductivity of 6786 backedges. 0 proven. 6786 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:38,209 INFO L450 AbstractCegarLoop]: Interpolant automaton has 119 states [2018-07-23 13:53:38,210 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 119 interpolants. [2018-07-23 13:53:38,210 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7021, Invalid=7021, Unknown=0, NotChecked=0, Total=14042 [2018-07-23 13:53:38,210 INFO L87 Difference]: Start difference. First operand 120 states and 120 transitions. Second operand 119 states. [2018-07-23 13:53:38,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:38,316 INFO L93 Difference]: Finished difference Result 123 states and 123 transitions. [2018-07-23 13:53:38,316 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2018-07-23 13:53:38,316 INFO L78 Accepts]: Start accepts. Automaton has 119 states. Word has length 119 [2018-07-23 13:53:38,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:38,316 INFO L225 Difference]: With dead ends: 123 [2018-07-23 13:53:38,316 INFO L226 Difference]: Without dead ends: 121 [2018-07-23 13:53:38,317 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=7021, Invalid=7021, Unknown=0, NotChecked=0, Total=14042 [2018-07-23 13:53:38,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2018-07-23 13:53:38,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2018-07-23 13:53:38,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2018-07-23 13:53:38,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 121 transitions. [2018-07-23 13:53:38,321 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 121 transitions. Word has length 119 [2018-07-23 13:53:38,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:38,321 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 121 transitions. [2018-07-23 13:53:38,321 INFO L472 AbstractCegarLoop]: Interpolant automaton has 119 states. [2018-07-23 13:53:38,321 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 121 transitions. [2018-07-23 13:53:38,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2018-07-23 13:53:38,322 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:38,322 INFO L357 BasicCegarLoop]: trace histogram [117, 1, 1, 1] [2018-07-23 13:53:38,322 INFO L414 AbstractCegarLoop]: === Iteration 118 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:38,322 INFO L82 PathProgramCache]: Analyzing trace with hash 2032333830, now seen corresponding path program 117 times [2018-07-23 13:53:38,322 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:38,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:39,877 INFO L134 CoverageAnalysis]: Checked inductivity of 6903 backedges. 0 proven. 6903 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:39,877 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:39,878 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [119] total 119 [2018-07-23 13:53:39,878 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:39,878 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 13:53:39,878 INFO L185 omatonBuilderFactory]: Interpolants [37120#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 37121#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 37122#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 37123#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 37124#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 37125#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 37126#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 37127#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 37128#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 37129#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 37130#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 37131#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 37132#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 37133#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 37134#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 37135#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 37136#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 37137#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 37138#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 37139#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 37140#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 37141#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 37142#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 37143#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 37144#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 37145#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 37146#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 37147#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 37148#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 37149#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 37150#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 37151#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 37152#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 37153#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 37154#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 37155#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 37156#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 37157#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 37158#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 37159#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 37160#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 37161#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 37162#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 37163#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 37164#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 37165#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 37166#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 37167#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 37168#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 37169#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 37170#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 37171#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 37172#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 37173#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 37174#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 37175#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 37176#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 37177#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 37178#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 37179#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 37180#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 37181#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 37182#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 37183#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 37184#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 37185#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 37186#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 37187#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 37188#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 37189#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 37190#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 37191#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 37192#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 37193#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 37194#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 37195#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 37196#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 37197#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 37198#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 37199#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 37200#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 37201#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 37202#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 37203#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 37204#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 37205#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 37206#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 37207#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 37208#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 37209#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 37210#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 37211#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 37212#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 37213#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 37214#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 37215#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 37216#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 37217#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 37218#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 37219#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 37220#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 37221#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 37222#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 37223#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 37224#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 37225#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 37226#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 37227#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 37228#(and (<= (select main_a main_x) 116) (not (= main_x main_y))), 37229#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 37110#true, 37111#false, 37112#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 37113#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 37114#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 37115#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 37116#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 37117#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 37118#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 37119#(and (<= (select main_a main_x) 7) (not (= main_x main_y)))] [2018-07-23 13:53:39,879 INFO L134 CoverageAnalysis]: Checked inductivity of 6903 backedges. 0 proven. 6903 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:39,879 INFO L450 AbstractCegarLoop]: Interpolant automaton has 120 states [2018-07-23 13:53:39,881 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 120 interpolants. [2018-07-23 13:53:39,881 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7140, Invalid=7140, Unknown=0, NotChecked=0, Total=14280 [2018-07-23 13:53:39,882 INFO L87 Difference]: Start difference. First operand 121 states and 121 transitions. Second operand 120 states. [2018-07-23 13:53:40,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:40,038 INFO L93 Difference]: Finished difference Result 124 states and 124 transitions. [2018-07-23 13:53:40,038 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2018-07-23 13:53:40,038 INFO L78 Accepts]: Start accepts. Automaton has 120 states. Word has length 120 [2018-07-23 13:53:40,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:40,039 INFO L225 Difference]: With dead ends: 124 [2018-07-23 13:53:40,039 INFO L226 Difference]: Without dead ends: 122 [2018-07-23 13:53:40,040 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=7140, Invalid=7140, Unknown=0, NotChecked=0, Total=14280 [2018-07-23 13:53:40,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2018-07-23 13:53:40,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2018-07-23 13:53:40,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2018-07-23 13:53:40,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 122 transitions. [2018-07-23 13:53:40,046 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 122 transitions. Word has length 120 [2018-07-23 13:53:40,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:40,046 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 122 transitions. [2018-07-23 13:53:40,046 INFO L472 AbstractCegarLoop]: Interpolant automaton has 120 states. [2018-07-23 13:53:40,046 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 122 transitions. [2018-07-23 13:53:40,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2018-07-23 13:53:40,047 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:40,047 INFO L357 BasicCegarLoop]: trace histogram [118, 1, 1, 1] [2018-07-23 13:53:40,047 INFO L414 AbstractCegarLoop]: === Iteration 119 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:40,047 INFO L82 PathProgramCache]: Analyzing trace with hash -1422164576, now seen corresponding path program 118 times [2018-07-23 13:53:40,047 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:40,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:41,511 INFO L134 CoverageAnalysis]: Checked inductivity of 7021 backedges. 0 proven. 7021 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:41,511 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:41,511 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [120] total 120 [2018-07-23 13:53:41,512 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:41,512 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 13:53:41,512 INFO L185 omatonBuilderFactory]: Interpolants [37722#true, 37723#false, 37724#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 37725#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 37726#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 37727#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 37728#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 37729#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 37730#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 37731#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 37732#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 37733#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 37734#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 37735#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 37736#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 37737#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 37738#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 37739#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 37740#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 37741#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 37742#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 37743#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 37744#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 37745#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 37746#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 37747#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 37748#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 37749#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 37750#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 37751#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 37752#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 37753#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 37754#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 37755#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 37756#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 37757#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 37758#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 37759#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 37760#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 37761#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 37762#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 37763#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 37764#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 37765#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 37766#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 37767#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 37768#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 37769#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 37770#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 37771#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 37772#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 37773#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 37774#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 37775#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 37776#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 37777#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 37778#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 37779#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 37780#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 37781#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 37782#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 37783#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 37784#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 37785#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 37786#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 37787#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 37788#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 37789#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 37790#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 37791#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 37792#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 37793#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 37794#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 37795#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 37796#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 37797#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 37798#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 37799#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 37800#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 37801#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 37802#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 37803#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 37804#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 37805#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 37806#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 37807#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 37808#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 37809#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 37810#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 37811#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 37812#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 37813#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 37814#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 37815#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 37816#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 37817#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 37818#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 37819#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 37820#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 37821#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 37822#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 37823#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 37824#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 37825#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 37826#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 37827#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 37828#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 37829#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 37830#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 37831#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 37832#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 37833#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 37834#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 37835#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 37836#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 37837#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 37838#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 37839#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 37840#(and (<= (select main_a main_x) 116) (not (= main_x main_y))), 37841#(and (not (= main_x main_y)) (<= (select main_a main_x) 117)), 37842#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:53:41,513 INFO L134 CoverageAnalysis]: Checked inductivity of 7021 backedges. 0 proven. 7021 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:41,513 INFO L450 AbstractCegarLoop]: Interpolant automaton has 121 states [2018-07-23 13:53:41,514 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 121 interpolants. [2018-07-23 13:53:41,515 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7260, Invalid=7260, Unknown=0, NotChecked=0, Total=14520 [2018-07-23 13:53:41,515 INFO L87 Difference]: Start difference. First operand 122 states and 122 transitions. Second operand 121 states. [2018-07-23 13:53:41,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:41,644 INFO L93 Difference]: Finished difference Result 125 states and 125 transitions. [2018-07-23 13:53:41,644 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2018-07-23 13:53:41,645 INFO L78 Accepts]: Start accepts. Automaton has 121 states. Word has length 121 [2018-07-23 13:53:41,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:41,645 INFO L225 Difference]: With dead ends: 125 [2018-07-23 13:53:41,645 INFO L226 Difference]: Without dead ends: 123 [2018-07-23 13:53:41,646 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=7260, Invalid=7260, Unknown=0, NotChecked=0, Total=14520 [2018-07-23 13:53:41,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2018-07-23 13:53:41,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2018-07-23 13:53:41,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2018-07-23 13:53:41,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 123 transitions. [2018-07-23 13:53:41,651 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 123 transitions. Word has length 121 [2018-07-23 13:53:41,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:41,651 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 123 transitions. [2018-07-23 13:53:41,651 INFO L472 AbstractCegarLoop]: Interpolant automaton has 121 states. [2018-07-23 13:53:41,651 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 123 transitions. [2018-07-23 13:53:41,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2018-07-23 13:53:41,651 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:41,652 INFO L357 BasicCegarLoop]: trace histogram [119, 1, 1, 1] [2018-07-23 13:53:41,652 INFO L414 AbstractCegarLoop]: === Iteration 120 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:41,652 INFO L82 PathProgramCache]: Analyzing trace with hash -1137432762, now seen corresponding path program 119 times [2018-07-23 13:53:41,652 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:41,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:43,228 INFO L134 CoverageAnalysis]: Checked inductivity of 7140 backedges. 0 proven. 7140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:43,228 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:43,228 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [121] total 121 [2018-07-23 13:53:43,229 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:43,229 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 13:53:43,229 INFO L185 omatonBuilderFactory]: Interpolants [38400#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 38401#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 38402#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 38403#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 38404#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 38405#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 38406#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 38407#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 38408#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 38409#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 38410#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 38411#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 38412#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 38413#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 38414#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 38415#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 38416#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 38417#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 38418#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 38419#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 38420#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 38421#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 38422#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 38423#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 38424#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 38425#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 38426#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 38427#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 38428#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 38429#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 38430#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 38431#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 38432#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 38433#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 38434#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 38435#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 38436#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 38437#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 38438#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 38439#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 38440#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 38441#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 38442#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 38443#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 38444#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 38445#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 38446#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 38447#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 38448#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 38449#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 38450#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 38451#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 38452#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 38453#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 38454#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 38455#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 38456#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 38457#(and (<= (select main_a main_x) 116) (not (= main_x main_y))), 38458#(and (not (= main_x main_y)) (<= (select main_a main_x) 117)), 38459#(and (not (= main_x main_y)) (<= (select main_a main_x) 118)), 38460#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 38339#true, 38340#false, 38341#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 38342#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 38343#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 38344#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 38345#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 38346#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 38347#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 38348#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 38349#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 38350#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 38351#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 38352#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 38353#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 38354#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 38355#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 38356#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 38357#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 38358#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 38359#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 38360#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 38361#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 38362#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 38363#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 38364#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 38365#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 38366#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 38367#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 38368#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 38369#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 38370#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 38371#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 38372#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 38373#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 38374#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 38375#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 38376#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 38377#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 38378#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 38379#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 38380#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 38381#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 38382#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 38383#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 38384#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 38385#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 38386#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 38387#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 38388#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 38389#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 38390#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 38391#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 38392#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 38393#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 38394#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 38395#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 38396#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 38397#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 38398#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 38399#(and (<= (select main_a main_x) 58) (not (= main_x main_y)))] [2018-07-23 13:53:43,230 INFO L134 CoverageAnalysis]: Checked inductivity of 7140 backedges. 0 proven. 7140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:43,230 INFO L450 AbstractCegarLoop]: Interpolant automaton has 122 states [2018-07-23 13:53:43,231 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 122 interpolants. [2018-07-23 13:53:43,231 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7381, Invalid=7381, Unknown=0, NotChecked=0, Total=14762 [2018-07-23 13:53:43,232 INFO L87 Difference]: Start difference. First operand 123 states and 123 transitions. Second operand 122 states. [2018-07-23 13:53:43,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:43,308 INFO L93 Difference]: Finished difference Result 126 states and 126 transitions. [2018-07-23 13:53:43,308 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2018-07-23 13:53:43,308 INFO L78 Accepts]: Start accepts. Automaton has 122 states. Word has length 122 [2018-07-23 13:53:43,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:43,308 INFO L225 Difference]: With dead ends: 126 [2018-07-23 13:53:43,308 INFO L226 Difference]: Without dead ends: 124 [2018-07-23 13:53:43,309 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=7381, Invalid=7381, Unknown=0, NotChecked=0, Total=14762 [2018-07-23 13:53:43,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2018-07-23 13:53:43,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2018-07-23 13:53:43,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2018-07-23 13:53:43,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 124 transitions. [2018-07-23 13:53:43,316 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 124 transitions. Word has length 122 [2018-07-23 13:53:43,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:43,317 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 124 transitions. [2018-07-23 13:53:43,317 INFO L472 AbstractCegarLoop]: Interpolant automaton has 122 states. [2018-07-23 13:53:43,317 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 124 transitions. [2018-07-23 13:53:43,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-07-23 13:53:43,317 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:43,318 INFO L357 BasicCegarLoop]: trace histogram [120, 1, 1, 1] [2018-07-23 13:53:43,318 INFO L414 AbstractCegarLoop]: === Iteration 121 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:43,318 INFO L82 PathProgramCache]: Analyzing trace with hash -900681120, now seen corresponding path program 120 times [2018-07-23 13:53:43,318 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:43,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:45,112 INFO L134 CoverageAnalysis]: Checked inductivity of 7260 backedges. 0 proven. 7260 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:45,112 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:45,112 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [122] total 122 [2018-07-23 13:53:45,113 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:45,113 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 13:53:45,113 INFO L185 omatonBuilderFactory]: Interpolants [38961#true, 38962#false, 38963#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 38964#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 38965#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 38966#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 38967#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 38968#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 38969#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 38970#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 38971#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 38972#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 38973#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 38974#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 38975#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 38976#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 38977#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 38978#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 38979#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 38980#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 38981#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 38982#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 38983#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 38984#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 38985#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 38986#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 38987#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 38988#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 38989#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 38990#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 38991#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 38992#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 38993#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 38994#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 38995#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 38996#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 38997#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 38998#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 38999#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 39000#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 39001#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 39002#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 39003#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 39004#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 39005#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 39006#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 39007#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 39008#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 39009#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 39010#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 39011#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 39012#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 39013#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 39014#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 39015#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 39016#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 39017#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 39018#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 39019#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 39020#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 39021#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 39022#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 39023#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 39024#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 39025#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 39026#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 39027#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 39028#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 39029#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 39030#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 39031#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 39032#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 39033#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 39034#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 39035#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 39036#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 39037#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 39038#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 39039#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 39040#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 39041#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 39042#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 39043#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 39044#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 39045#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 39046#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 39047#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 39048#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 39049#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 39050#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 39051#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 39052#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 39053#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 39054#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 39055#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 39056#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 39057#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 39058#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 39059#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 39060#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 39061#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 39062#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 39063#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 39064#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 39065#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 39066#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 39067#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 39068#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 39069#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 39070#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 39071#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 39072#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 39073#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 39074#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 39075#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 39076#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 39077#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 39078#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 39079#(and (<= (select main_a main_x) 116) (not (= main_x main_y))), 39080#(and (not (= main_x main_y)) (<= (select main_a main_x) 117)), 39081#(and (not (= main_x main_y)) (<= (select main_a main_x) 118)), 39082#(and (not (= main_x main_y)) (<= (select main_a main_x) 119)), 39083#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:53:45,114 INFO L134 CoverageAnalysis]: Checked inductivity of 7260 backedges. 0 proven. 7260 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:45,114 INFO L450 AbstractCegarLoop]: Interpolant automaton has 123 states [2018-07-23 13:53:45,115 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 123 interpolants. [2018-07-23 13:53:45,115 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7503, Invalid=7503, Unknown=0, NotChecked=0, Total=15006 [2018-07-23 13:53:45,115 INFO L87 Difference]: Start difference. First operand 124 states and 124 transitions. Second operand 123 states. [2018-07-23 13:53:45,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:45,248 INFO L93 Difference]: Finished difference Result 127 states and 127 transitions. [2018-07-23 13:53:45,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2018-07-23 13:53:45,248 INFO L78 Accepts]: Start accepts. Automaton has 123 states. Word has length 123 [2018-07-23 13:53:45,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:45,248 INFO L225 Difference]: With dead ends: 127 [2018-07-23 13:53:45,248 INFO L226 Difference]: Without dead ends: 125 [2018-07-23 13:53:45,249 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=7503, Invalid=7503, Unknown=0, NotChecked=0, Total=15006 [2018-07-23 13:53:45,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2018-07-23 13:53:45,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2018-07-23 13:53:45,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2018-07-23 13:53:45,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 125 transitions. [2018-07-23 13:53:45,253 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 125 transitions. Word has length 123 [2018-07-23 13:53:45,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:45,254 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 125 transitions. [2018-07-23 13:53:45,254 INFO L472 AbstractCegarLoop]: Interpolant automaton has 123 states. [2018-07-23 13:53:45,254 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 125 transitions. [2018-07-23 13:53:45,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-07-23 13:53:45,255 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:45,255 INFO L357 BasicCegarLoop]: trace histogram [121, 1, 1, 1] [2018-07-23 13:53:45,255 INFO L414 AbstractCegarLoop]: === Iteration 122 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:45,255 INFO L82 PathProgramCache]: Analyzing trace with hash 2143652486, now seen corresponding path program 121 times [2018-07-23 13:53:45,255 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:45,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:46,775 INFO L134 CoverageAnalysis]: Checked inductivity of 7381 backedges. 0 proven. 7381 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:46,776 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:46,776 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [123] total 123 [2018-07-23 13:53:46,776 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:46,776 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 13:53:46,777 INFO L185 omatonBuilderFactory]: Interpolants [39680#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 39681#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 39682#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 39683#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 39684#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 39685#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 39686#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 39687#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 39688#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 39689#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 39690#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 39691#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 39692#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 39693#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 39694#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 39695#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 39696#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 39697#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 39698#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 39699#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 39700#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 39701#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 39702#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 39703#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 39704#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 39705#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 39706#(and (<= (select main_a main_x) 116) (not (= main_x main_y))), 39707#(and (not (= main_x main_y)) (<= (select main_a main_x) 117)), 39708#(and (not (= main_x main_y)) (<= (select main_a main_x) 118)), 39709#(and (not (= main_x main_y)) (<= (select main_a main_x) 119)), 39710#(and (<= (select main_a main_x) 120) (not (= main_x main_y))), 39711#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 39588#true, 39589#false, 39590#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 39591#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 39592#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 39593#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 39594#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 39595#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 39596#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 39597#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 39598#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 39599#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 39600#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 39601#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 39602#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 39603#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 39604#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 39605#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 39606#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 39607#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 39608#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 39609#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 39610#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 39611#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 39612#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 39613#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 39614#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 39615#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 39616#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 39617#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 39618#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 39619#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 39620#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 39621#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 39622#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 39623#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 39624#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 39625#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 39626#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 39627#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 39628#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 39629#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 39630#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 39631#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 39632#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 39633#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 39634#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 39635#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 39636#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 39637#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 39638#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 39639#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 39640#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 39641#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 39642#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 39643#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 39644#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 39645#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 39646#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 39647#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 39648#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 39649#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 39650#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 39651#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 39652#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 39653#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 39654#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 39655#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 39656#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 39657#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 39658#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 39659#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 39660#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 39661#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 39662#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 39663#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 39664#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 39665#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 39666#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 39667#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 39668#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 39669#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 39670#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 39671#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 39672#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 39673#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 39674#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 39675#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 39676#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 39677#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 39678#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 39679#(and (not (= main_x main_y)) (<= (select main_a main_x) 89))] [2018-07-23 13:53:46,777 INFO L134 CoverageAnalysis]: Checked inductivity of 7381 backedges. 0 proven. 7381 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:46,778 INFO L450 AbstractCegarLoop]: Interpolant automaton has 124 states [2018-07-23 13:53:46,779 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 124 interpolants. [2018-07-23 13:53:46,779 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7626, Invalid=7626, Unknown=0, NotChecked=0, Total=15252 [2018-07-23 13:53:46,780 INFO L87 Difference]: Start difference. First operand 125 states and 125 transitions. Second operand 124 states. [2018-07-23 13:53:46,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:46,861 INFO L93 Difference]: Finished difference Result 128 states and 128 transitions. [2018-07-23 13:53:46,861 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2018-07-23 13:53:46,861 INFO L78 Accepts]: Start accepts. Automaton has 124 states. Word has length 124 [2018-07-23 13:53:46,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:46,861 INFO L225 Difference]: With dead ends: 128 [2018-07-23 13:53:46,861 INFO L226 Difference]: Without dead ends: 126 [2018-07-23 13:53:46,862 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=7626, Invalid=7626, Unknown=0, NotChecked=0, Total=15252 [2018-07-23 13:53:46,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2018-07-23 13:53:46,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2018-07-23 13:53:46,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2018-07-23 13:53:46,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 126 transitions. [2018-07-23 13:53:46,866 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 126 transitions. Word has length 124 [2018-07-23 13:53:46,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:46,867 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 126 transitions. [2018-07-23 13:53:46,867 INFO L472 AbstractCegarLoop]: Interpolant automaton has 124 states. [2018-07-23 13:53:46,867 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 126 transitions. [2018-07-23 13:53:46,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-07-23 13:53:46,867 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:46,867 INFO L357 BasicCegarLoop]: trace histogram [122, 1, 1, 1] [2018-07-23 13:53:46,867 INFO L414 AbstractCegarLoop]: === Iteration 123 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:46,867 INFO L82 PathProgramCache]: Analyzing trace with hash 2028713760, now seen corresponding path program 122 times [2018-07-23 13:53:46,868 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:46,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:48,570 INFO L134 CoverageAnalysis]: Checked inductivity of 7503 backedges. 0 proven. 7503 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:48,570 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:48,571 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [124] total 124 [2018-07-23 13:53:48,571 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:48,571 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 13:53:48,571 INFO L185 omatonBuilderFactory]: Interpolants [40220#true, 40221#false, 40222#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 40223#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 40224#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 40225#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 40226#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 40227#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 40228#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 40229#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 40230#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 40231#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 40232#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 40233#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 40234#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 40235#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 40236#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 40237#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 40238#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 40239#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 40240#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 40241#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 40242#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 40243#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 40244#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 40245#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 40246#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 40247#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 40248#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 40249#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 40250#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 40251#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 40252#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 40253#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 40254#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 40255#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 40256#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 40257#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 40258#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 40259#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 40260#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 40261#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 40262#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 40263#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 40264#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 40265#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 40266#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 40267#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 40268#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 40269#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 40270#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 40271#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 40272#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 40273#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 40274#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 40275#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 40276#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 40277#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 40278#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 40279#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 40280#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 40281#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 40282#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 40283#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 40284#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 40285#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 40286#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 40287#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 40288#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 40289#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 40290#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 40291#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 40292#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 40293#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 40294#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 40295#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 40296#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 40297#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 40298#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 40299#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 40300#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 40301#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 40302#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 40303#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 40304#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 40305#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 40306#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 40307#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 40308#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 40309#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 40310#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 40311#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 40312#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 40313#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 40314#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 40315#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 40316#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 40317#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 40318#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 40319#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 40320#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 40321#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 40322#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 40323#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 40324#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 40325#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 40326#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 40327#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 40328#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 40329#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 40330#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 40331#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 40332#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 40333#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 40334#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 40335#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 40336#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 40337#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 40338#(and (<= (select main_a main_x) 116) (not (= main_x main_y))), 40339#(and (not (= main_x main_y)) (<= (select main_a main_x) 117)), 40340#(and (not (= main_x main_y)) (<= (select main_a main_x) 118)), 40341#(and (not (= main_x main_y)) (<= (select main_a main_x) 119)), 40342#(and (<= (select main_a main_x) 120) (not (= main_x main_y))), 40343#(and (not (= main_x main_y)) (<= (select main_a main_x) 121)), 40344#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:53:48,572 INFO L134 CoverageAnalysis]: Checked inductivity of 7503 backedges. 0 proven. 7503 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:48,572 INFO L450 AbstractCegarLoop]: Interpolant automaton has 125 states [2018-07-23 13:53:48,573 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 125 interpolants. [2018-07-23 13:53:48,573 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7750, Invalid=7750, Unknown=0, NotChecked=0, Total=15500 [2018-07-23 13:53:48,574 INFO L87 Difference]: Start difference. First operand 126 states and 126 transitions. Second operand 125 states. [2018-07-23 13:53:48,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:48,745 INFO L93 Difference]: Finished difference Result 129 states and 129 transitions. [2018-07-23 13:53:48,745 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2018-07-23 13:53:48,745 INFO L78 Accepts]: Start accepts. Automaton has 125 states. Word has length 125 [2018-07-23 13:53:48,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:48,745 INFO L225 Difference]: With dead ends: 129 [2018-07-23 13:53:48,745 INFO L226 Difference]: Without dead ends: 127 [2018-07-23 13:53:48,746 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=7750, Invalid=7750, Unknown=0, NotChecked=0, Total=15500 [2018-07-23 13:53:48,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2018-07-23 13:53:48,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2018-07-23 13:53:48,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2018-07-23 13:53:48,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 127 transitions. [2018-07-23 13:53:48,751 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 127 transitions. Word has length 125 [2018-07-23 13:53:48,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:48,751 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 127 transitions. [2018-07-23 13:53:48,751 INFO L472 AbstractCegarLoop]: Interpolant automaton has 125 states. [2018-07-23 13:53:48,751 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 127 transitions. [2018-07-23 13:53:48,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-07-23 13:53:48,751 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:48,751 INFO L357 BasicCegarLoop]: trace histogram [123, 1, 1, 1] [2018-07-23 13:53:48,752 INFO L414 AbstractCegarLoop]: === Iteration 124 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:48,752 INFO L82 PathProgramCache]: Analyzing trace with hash -1534386746, now seen corresponding path program 123 times [2018-07-23 13:53:48,752 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:48,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:50,332 INFO L134 CoverageAnalysis]: Checked inductivity of 7626 backedges. 0 proven. 7626 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:50,332 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:50,332 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [125] total 125 [2018-07-23 13:53:50,332 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:50,333 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 13:53:50,333 INFO L185 omatonBuilderFactory]: Interpolants [40960#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 40961#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 40962#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 40963#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 40964#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 40965#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 40966#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 40967#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 40968#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 40969#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 40970#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 40971#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 40972#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 40973#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 40974#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 40975#(and (<= (select main_a main_x) 116) (not (= main_x main_y))), 40976#(and (not (= main_x main_y)) (<= (select main_a main_x) 117)), 40977#(and (not (= main_x main_y)) (<= (select main_a main_x) 118)), 40978#(and (not (= main_x main_y)) (<= (select main_a main_x) 119)), 40979#(and (<= (select main_a main_x) 120) (not (= main_x main_y))), 40980#(and (not (= main_x main_y)) (<= (select main_a main_x) 121)), 40981#(and (not (= main_x main_y)) (<= (select main_a main_x) 122)), 40982#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 40857#true, 40858#false, 40859#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 40860#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 40861#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 40862#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 40863#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 40864#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 40865#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 40866#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 40867#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 40868#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 40869#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 40870#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 40871#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 40872#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 40873#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 40874#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 40875#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 40876#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 40877#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 40878#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 40879#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 40880#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 40881#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 40882#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 40883#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 40884#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 40885#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 40886#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 40887#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 40888#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 40889#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 40890#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 40891#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 40892#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 40893#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 40894#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 40895#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 40896#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 40897#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 40898#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 40899#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 40900#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 40901#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 40902#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 40903#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 40904#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 40905#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 40906#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 40907#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 40908#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 40909#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 40910#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 40911#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 40912#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 40913#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 40914#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 40915#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 40916#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 40917#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 40918#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 40919#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 40920#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 40921#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 40922#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 40923#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 40924#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 40925#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 40926#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 40927#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 40928#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 40929#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 40930#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 40931#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 40932#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 40933#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 40934#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 40935#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 40936#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 40937#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 40938#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 40939#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 40940#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 40941#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 40942#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 40943#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 40944#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 40945#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 40946#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 40947#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 40948#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 40949#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 40950#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 40951#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 40952#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 40953#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 40954#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 40955#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 40956#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 40957#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 40958#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 40959#(and (<= (select main_a main_x) 100) (not (= main_x main_y)))] [2018-07-23 13:53:50,334 INFO L134 CoverageAnalysis]: Checked inductivity of 7626 backedges. 0 proven. 7626 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:50,334 INFO L450 AbstractCegarLoop]: Interpolant automaton has 126 states [2018-07-23 13:53:50,335 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 126 interpolants. [2018-07-23 13:53:50,336 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7875, Invalid=7875, Unknown=0, NotChecked=0, Total=15750 [2018-07-23 13:53:50,337 INFO L87 Difference]: Start difference. First operand 127 states and 127 transitions. Second operand 126 states. [2018-07-23 13:53:50,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:50,444 INFO L93 Difference]: Finished difference Result 130 states and 130 transitions. [2018-07-23 13:53:50,444 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2018-07-23 13:53:50,444 INFO L78 Accepts]: Start accepts. Automaton has 126 states. Word has length 126 [2018-07-23 13:53:50,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:50,445 INFO L225 Difference]: With dead ends: 130 [2018-07-23 13:53:50,445 INFO L226 Difference]: Without dead ends: 128 [2018-07-23 13:53:50,446 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=7875, Invalid=7875, Unknown=0, NotChecked=0, Total=15750 [2018-07-23 13:53:50,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2018-07-23 13:53:50,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2018-07-23 13:53:50,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2018-07-23 13:53:50,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 128 transitions. [2018-07-23 13:53:50,450 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 128 transitions. Word has length 126 [2018-07-23 13:53:50,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:50,450 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 128 transitions. [2018-07-23 13:53:50,450 INFO L472 AbstractCegarLoop]: Interpolant automaton has 126 states. [2018-07-23 13:53:50,450 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 128 transitions. [2018-07-23 13:53:50,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2018-07-23 13:53:50,451 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:50,451 INFO L357 BasicCegarLoop]: trace histogram [124, 1, 1, 1] [2018-07-23 13:53:50,451 INFO L414 AbstractCegarLoop]: === Iteration 125 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:50,451 INFO L82 PathProgramCache]: Analyzing trace with hash -321352736, now seen corresponding path program 124 times [2018-07-23 13:53:50,451 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:50,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:52,317 INFO L134 CoverageAnalysis]: Checked inductivity of 7750 backedges. 0 proven. 7750 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:52,317 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:52,317 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [126] total 126 [2018-07-23 13:53:52,317 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:52,318 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 13:53:52,318 INFO L185 omatonBuilderFactory]: Interpolants [41499#true, 41500#false, 41501#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 41502#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 41503#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 41504#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 41505#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 41506#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 41507#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 41508#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 41509#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 41510#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 41511#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 41512#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 41513#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 41514#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 41515#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 41516#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 41517#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 41518#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 41519#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 41520#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 41521#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 41522#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 41523#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 41524#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 41525#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 41526#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 41527#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 41528#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 41529#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 41530#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 41531#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 41532#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 41533#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 41534#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 41535#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 41536#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 41537#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 41538#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 41539#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 41540#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 41541#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 41542#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 41543#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 41544#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 41545#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 41546#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 41547#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 41548#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 41549#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 41550#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 41551#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 41552#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 41553#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 41554#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 41555#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 41556#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 41557#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 41558#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 41559#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 41560#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 41561#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 41562#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 41563#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 41564#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 41565#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 41566#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 41567#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 41568#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 41569#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 41570#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 41571#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 41572#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 41573#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 41574#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 41575#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 41576#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 41577#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 41578#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 41579#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 41580#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 41581#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 41582#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 41583#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 41584#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 41585#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 41586#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 41587#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 41588#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 41589#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 41590#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 41591#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 41592#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 41593#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 41594#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 41595#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 41596#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 41597#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 41598#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 41599#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 41600#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 41601#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 41602#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 41603#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 41604#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 41605#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 41606#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 41607#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 41608#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 41609#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 41610#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 41611#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 41612#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 41613#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 41614#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 41615#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 41616#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 41617#(and (<= (select main_a main_x) 116) (not (= main_x main_y))), 41618#(and (not (= main_x main_y)) (<= (select main_a main_x) 117)), 41619#(and (not (= main_x main_y)) (<= (select main_a main_x) 118)), 41620#(and (not (= main_x main_y)) (<= (select main_a main_x) 119)), 41621#(and (<= (select main_a main_x) 120) (not (= main_x main_y))), 41622#(and (not (= main_x main_y)) (<= (select main_a main_x) 121)), 41623#(and (not (= main_x main_y)) (<= (select main_a main_x) 122)), 41624#(and (not (= main_x main_y)) (<= (select main_a main_x) 123)), 41625#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:53:52,319 INFO L134 CoverageAnalysis]: Checked inductivity of 7750 backedges. 0 proven. 7750 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:52,319 INFO L450 AbstractCegarLoop]: Interpolant automaton has 127 states [2018-07-23 13:53:52,321 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 127 interpolants. [2018-07-23 13:53:52,322 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8001, Invalid=8001, Unknown=0, NotChecked=0, Total=16002 [2018-07-23 13:53:52,322 INFO L87 Difference]: Start difference. First operand 128 states and 128 transitions. Second operand 127 states. [2018-07-23 13:53:52,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:52,525 INFO L93 Difference]: Finished difference Result 131 states and 131 transitions. [2018-07-23 13:53:52,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2018-07-23 13:53:52,526 INFO L78 Accepts]: Start accepts. Automaton has 127 states. Word has length 127 [2018-07-23 13:53:52,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:52,526 INFO L225 Difference]: With dead ends: 131 [2018-07-23 13:53:52,526 INFO L226 Difference]: Without dead ends: 129 [2018-07-23 13:53:52,528 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=8001, Invalid=8001, Unknown=0, NotChecked=0, Total=16002 [2018-07-23 13:53:52,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2018-07-23 13:53:52,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2018-07-23 13:53:52,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2018-07-23 13:53:52,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 129 transitions. [2018-07-23 13:53:52,532 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 129 transitions. Word has length 127 [2018-07-23 13:53:52,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:52,532 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 129 transitions. [2018-07-23 13:53:52,532 INFO L472 AbstractCegarLoop]: Interpolant automaton has 127 states. [2018-07-23 13:53:52,533 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 129 transitions. [2018-07-23 13:53:52,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-07-23 13:53:52,533 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:52,533 INFO L357 BasicCegarLoop]: trace histogram [125, 1, 1, 1] [2018-07-23 13:53:52,533 INFO L414 AbstractCegarLoop]: === Iteration 126 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:52,533 INFO L82 PathProgramCache]: Analyzing trace with hash -1372004090, now seen corresponding path program 125 times [2018-07-23 13:53:52,534 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:52,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:54,242 INFO L134 CoverageAnalysis]: Checked inductivity of 7875 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:54,242 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:54,242 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [127] total 127 [2018-07-23 13:53:54,242 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:54,243 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 13:53:54,243 INFO L185 omatonBuilderFactory]: Interpolants [42240#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 42241#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 42242#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 42243#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 42244#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 42245#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 42246#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 42247#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 42248#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 42249#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 42250#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 42251#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 42252#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 42253#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 42254#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 42255#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 42256#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 42257#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 42258#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 42259#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 42260#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 42261#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 42262#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 42263#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 42264#(and (<= (select main_a main_x) 116) (not (= main_x main_y))), 42265#(and (not (= main_x main_y)) (<= (select main_a main_x) 117)), 42266#(and (not (= main_x main_y)) (<= (select main_a main_x) 118)), 42267#(and (not (= main_x main_y)) (<= (select main_a main_x) 119)), 42268#(and (<= (select main_a main_x) 120) (not (= main_x main_y))), 42269#(and (not (= main_x main_y)) (<= (select main_a main_x) 121)), 42270#(and (not (= main_x main_y)) (<= (select main_a main_x) 122)), 42271#(and (not (= main_x main_y)) (<= (select main_a main_x) 123)), 42272#(and (not (= main_x main_y)) (<= (select main_a main_x) 124)), 42273#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 42146#true, 42147#false, 42148#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 42149#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 42150#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 42151#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 42152#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 42153#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 42154#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 42155#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 42156#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 42157#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 42158#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 42159#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 42160#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 42161#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 42162#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 42163#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 42164#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 42165#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 42166#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 42167#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 42168#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 42169#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 42170#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 42171#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 42172#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 42173#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 42174#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 42175#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 42176#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 42177#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 42178#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 42179#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 42180#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 42181#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 42182#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 42183#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 42184#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 42185#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 42186#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 42187#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 42188#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 42189#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 42190#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 42191#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 42192#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 42193#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 42194#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 42195#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 42196#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 42197#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 42198#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 42199#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 42200#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 42201#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 42202#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 42203#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 42204#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 42205#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 42206#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 42207#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 42208#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 42209#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 42210#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 42211#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 42212#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 42213#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 42214#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 42215#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 42216#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 42217#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 42218#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 42219#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 42220#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 42221#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 42222#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 42223#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 42224#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 42225#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 42226#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 42227#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 42228#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 42229#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 42230#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 42231#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 42232#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 42233#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 42234#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 42235#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 42236#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 42237#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 42238#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 42239#(and (not (= main_x main_y)) (<= (select main_a main_x) 91))] [2018-07-23 13:53:54,243 INFO L134 CoverageAnalysis]: Checked inductivity of 7875 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:54,243 INFO L450 AbstractCegarLoop]: Interpolant automaton has 128 states [2018-07-23 13:53:54,245 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 128 interpolants. [2018-07-23 13:53:54,245 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8128, Invalid=8128, Unknown=0, NotChecked=0, Total=16256 [2018-07-23 13:53:54,245 INFO L87 Difference]: Start difference. First operand 129 states and 129 transitions. Second operand 128 states. [2018-07-23 13:53:54,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:54,343 INFO L93 Difference]: Finished difference Result 132 states and 132 transitions. [2018-07-23 13:53:54,343 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2018-07-23 13:53:54,343 INFO L78 Accepts]: Start accepts. Automaton has 128 states. Word has length 128 [2018-07-23 13:53:54,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:54,344 INFO L225 Difference]: With dead ends: 132 [2018-07-23 13:53:54,344 INFO L226 Difference]: Without dead ends: 130 [2018-07-23 13:53:54,345 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=8128, Invalid=8128, Unknown=0, NotChecked=0, Total=16256 [2018-07-23 13:53:54,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2018-07-23 13:53:54,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2018-07-23 13:53:54,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2018-07-23 13:53:54,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 130 transitions. [2018-07-23 13:53:54,351 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 130 transitions. Word has length 128 [2018-07-23 13:53:54,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:54,352 INFO L471 AbstractCegarLoop]: Abstraction has 130 states and 130 transitions. [2018-07-23 13:53:54,352 INFO L472 AbstractCegarLoop]: Interpolant automaton has 128 states. [2018-07-23 13:53:54,352 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 130 transitions. [2018-07-23 13:53:54,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-07-23 13:53:54,353 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:54,353 INFO L357 BasicCegarLoop]: trace histogram [126, 1, 1, 1] [2018-07-23 13:53:54,353 INFO L414 AbstractCegarLoop]: === Iteration 127 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:54,353 INFO L82 PathProgramCache]: Analyzing trace with hash 417542304, now seen corresponding path program 126 times [2018-07-23 13:53:54,353 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:54,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:56,247 INFO L134 CoverageAnalysis]: Checked inductivity of 8001 backedges. 0 proven. 8001 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:56,248 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:56,248 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [128] total 128 [2018-07-23 13:53:56,248 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:56,248 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 13:53:56,248 INFO L185 omatonBuilderFactory]: Interpolants [42798#true, 42799#false, 42800#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 42801#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 42802#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 42803#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 42804#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 42805#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 42806#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 42807#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 42808#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 42809#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 42810#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 42811#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 42812#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 42813#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 42814#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 42815#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 42816#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 42817#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 42818#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 42819#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 42820#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 42821#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 42822#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 42823#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 42824#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 42825#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 42826#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 42827#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 42828#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 42829#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 42830#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 42831#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 42832#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 42833#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 42834#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 42835#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 42836#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 42837#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 42838#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 42839#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 42840#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 42841#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 42842#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 42843#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 42844#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 42845#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 42846#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 42847#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 42848#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 42849#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 42850#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 42851#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 42852#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 42853#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 42854#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 42855#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 42856#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 42857#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 42858#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 42859#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 42860#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 42861#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 42862#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 42863#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 42864#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 42865#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 42866#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 42867#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 42868#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 42869#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 42870#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 42871#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 42872#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 42873#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 42874#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 42875#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 42876#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 42877#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 42878#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 42879#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 42880#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 42881#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 42882#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 42883#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 42884#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 42885#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 42886#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 42887#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 42888#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 42889#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 42890#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 42891#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 42892#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 42893#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 42894#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 42895#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 42896#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 42897#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 42898#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 42899#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 42900#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 42901#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 42902#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 42903#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 42904#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 42905#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 42906#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 42907#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 42908#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 42909#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 42910#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 42911#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 42912#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 42913#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 42914#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 42915#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 42916#(and (<= (select main_a main_x) 116) (not (= main_x main_y))), 42917#(and (not (= main_x main_y)) (<= (select main_a main_x) 117)), 42918#(and (not (= main_x main_y)) (<= (select main_a main_x) 118)), 42919#(and (not (= main_x main_y)) (<= (select main_a main_x) 119)), 42920#(and (<= (select main_a main_x) 120) (not (= main_x main_y))), 42921#(and (not (= main_x main_y)) (<= (select main_a main_x) 121)), 42922#(and (not (= main_x main_y)) (<= (select main_a main_x) 122)), 42923#(and (not (= main_x main_y)) (<= (select main_a main_x) 123)), 42924#(and (not (= main_x main_y)) (<= (select main_a main_x) 124)), 42925#(and (not (= main_x main_y)) (<= (select main_a main_x) 125)), 42926#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:53:56,249 INFO L134 CoverageAnalysis]: Checked inductivity of 8001 backedges. 0 proven. 8001 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:56,249 INFO L450 AbstractCegarLoop]: Interpolant automaton has 129 states [2018-07-23 13:53:56,251 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 129 interpolants. [2018-07-23 13:53:56,251 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8256, Invalid=8256, Unknown=0, NotChecked=0, Total=16512 [2018-07-23 13:53:56,251 INFO L87 Difference]: Start difference. First operand 130 states and 130 transitions. Second operand 129 states. [2018-07-23 13:53:56,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:56,454 INFO L93 Difference]: Finished difference Result 133 states and 133 transitions. [2018-07-23 13:53:56,454 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2018-07-23 13:53:56,454 INFO L78 Accepts]: Start accepts. Automaton has 129 states. Word has length 129 [2018-07-23 13:53:56,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:56,455 INFO L225 Difference]: With dead ends: 133 [2018-07-23 13:53:56,455 INFO L226 Difference]: Without dead ends: 131 [2018-07-23 13:53:56,456 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=8256, Invalid=8256, Unknown=0, NotChecked=0, Total=16512 [2018-07-23 13:53:56,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2018-07-23 13:53:56,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2018-07-23 13:53:56,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2018-07-23 13:53:56,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 131 transitions. [2018-07-23 13:53:56,460 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 131 transitions. Word has length 129 [2018-07-23 13:53:56,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:56,461 INFO L471 AbstractCegarLoop]: Abstraction has 131 states and 131 transitions. [2018-07-23 13:53:56,461 INFO L472 AbstractCegarLoop]: Interpolant automaton has 129 states. [2018-07-23 13:53:56,461 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 131 transitions. [2018-07-23 13:53:56,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-07-23 13:53:56,461 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:56,462 INFO L357 BasicCegarLoop]: trace histogram [127, 1, 1, 1] [2018-07-23 13:53:56,462 INFO L414 AbstractCegarLoop]: === Iteration 128 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:56,462 INFO L82 PathProgramCache]: Analyzing trace with hash 58905670, now seen corresponding path program 127 times [2018-07-23 13:53:56,462 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:56,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:58,478 INFO L134 CoverageAnalysis]: Checked inductivity of 8128 backedges. 0 proven. 8128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:58,479 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:58,479 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [129] total 129 [2018-07-23 13:53:58,479 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:58,479 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 13:53:58,480 INFO L185 omatonBuilderFactory]: Interpolants [43520#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 43521#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 43522#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 43523#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 43524#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 43525#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 43526#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 43527#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 43528#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 43529#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 43530#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 43531#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 43532#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 43533#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 43534#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 43535#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 43536#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 43537#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 43538#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 43539#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 43540#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 43541#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 43542#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 43543#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 43544#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 43545#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 43546#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 43547#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 43548#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 43549#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 43550#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 43551#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 43552#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 43553#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 43554#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 43555#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 43556#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 43557#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 43558#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 43559#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 43560#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 43561#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 43562#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 43563#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 43564#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 43565#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 43566#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 43567#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 43568#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 43569#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 43570#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 43571#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 43572#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 43573#(and (<= (select main_a main_x) 116) (not (= main_x main_y))), 43574#(and (not (= main_x main_y)) (<= (select main_a main_x) 117)), 43575#(and (not (= main_x main_y)) (<= (select main_a main_x) 118)), 43576#(and (not (= main_x main_y)) (<= (select main_a main_x) 119)), 43577#(and (<= (select main_a main_x) 120) (not (= main_x main_y))), 43578#(and (not (= main_x main_y)) (<= (select main_a main_x) 121)), 43579#(and (not (= main_x main_y)) (<= (select main_a main_x) 122)), 43580#(and (not (= main_x main_y)) (<= (select main_a main_x) 123)), 43581#(and (not (= main_x main_y)) (<= (select main_a main_x) 124)), 43582#(and (not (= main_x main_y)) (<= (select main_a main_x) 125)), 43583#(and (not (= main_x main_y)) (<= (select main_a main_x) 126)), 43584#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 43455#true, 43456#false, 43457#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 43458#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 43459#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 43460#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 43461#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 43462#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 43463#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 43464#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 43465#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 43466#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 43467#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 43468#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 43469#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 43470#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 43471#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 43472#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 43473#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 43474#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 43475#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 43476#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 43477#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 43478#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 43479#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 43480#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 43481#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 43482#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 43483#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 43484#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 43485#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 43486#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 43487#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 43488#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 43489#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 43490#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 43491#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 43492#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 43493#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 43494#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 43495#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 43496#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 43497#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 43498#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 43499#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 43500#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 43501#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 43502#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 43503#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 43504#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 43505#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 43506#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 43507#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 43508#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 43509#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 43510#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 43511#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 43512#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 43513#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 43514#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 43515#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 43516#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 43517#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 43518#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 43519#(and (not (= main_x main_y)) (<= (select main_a main_x) 62))] [2018-07-23 13:53:58,480 INFO L134 CoverageAnalysis]: Checked inductivity of 8128 backedges. 0 proven. 8128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:58,481 INFO L450 AbstractCegarLoop]: Interpolant automaton has 130 states [2018-07-23 13:53:58,482 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2018-07-23 13:53:58,483 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8385, Invalid=8385, Unknown=0, NotChecked=0, Total=16770 [2018-07-23 13:53:58,483 INFO L87 Difference]: Start difference. First operand 131 states and 131 transitions. Second operand 130 states. [2018-07-23 13:53:58,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:58,593 INFO L93 Difference]: Finished difference Result 134 states and 134 transitions. [2018-07-23 13:53:58,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2018-07-23 13:53:58,593 INFO L78 Accepts]: Start accepts. Automaton has 130 states. Word has length 130 [2018-07-23 13:53:58,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:58,594 INFO L225 Difference]: With dead ends: 134 [2018-07-23 13:53:58,594 INFO L226 Difference]: Without dead ends: 132 [2018-07-23 13:53:58,595 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=8385, Invalid=8385, Unknown=0, NotChecked=0, Total=16770 [2018-07-23 13:53:58,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2018-07-23 13:53:58,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2018-07-23 13:53:58,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2018-07-23 13:53:58,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 132 transitions. [2018-07-23 13:53:58,601 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 132 transitions. Word has length 130 [2018-07-23 13:53:58,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:58,602 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 132 transitions. [2018-07-23 13:53:58,602 INFO L472 AbstractCegarLoop]: Interpolant automaton has 130 states. [2018-07-23 13:53:58,602 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 132 transitions. [2018-07-23 13:53:58,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-07-23 13:53:58,602 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:58,602 INFO L357 BasicCegarLoop]: trace histogram [128, 1, 1, 1] [2018-07-23 13:53:58,603 INFO L414 AbstractCegarLoop]: === Iteration 129 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:58,603 INFO L82 PathProgramCache]: Analyzing trace with hash 1826071904, now seen corresponding path program 128 times [2018-07-23 13:53:58,603 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:58,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:00,539 INFO L134 CoverageAnalysis]: Checked inductivity of 8256 backedges. 0 proven. 8256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:00,539 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:00,540 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [130] total 130 [2018-07-23 13:54:00,540 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:00,540 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 13:54:00,540 INFO L185 omatonBuilderFactory]: Interpolants [44117#true, 44118#false, 44119#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 44120#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 44121#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 44122#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 44123#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 44124#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 44125#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 44126#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 44127#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 44128#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 44129#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 44130#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 44131#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 44132#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 44133#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 44134#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 44135#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 44136#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 44137#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 44138#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 44139#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 44140#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 44141#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 44142#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 44143#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 44144#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 44145#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 44146#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 44147#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 44148#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 44149#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 44150#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 44151#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 44152#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 44153#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 44154#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 44155#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 44156#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 44157#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 44158#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 44159#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 44160#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 44161#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 44162#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 44163#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 44164#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 44165#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 44166#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 44167#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 44168#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 44169#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 44170#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 44171#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 44172#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 44173#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 44174#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 44175#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 44176#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 44177#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 44178#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 44179#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 44180#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 44181#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 44182#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 44183#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 44184#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 44185#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 44186#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 44187#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 44188#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 44189#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 44190#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 44191#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 44192#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 44193#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 44194#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 44195#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 44196#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 44197#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 44198#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 44199#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 44200#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 44201#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 44202#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 44203#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 44204#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 44205#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 44206#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 44207#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 44208#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 44209#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 44210#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 44211#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 44212#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 44213#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 44214#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 44215#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 44216#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 44217#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 44218#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 44219#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 44220#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 44221#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 44222#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 44223#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 44224#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 44225#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 44226#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 44227#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 44228#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 44229#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 44230#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 44231#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 44232#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 44233#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 44234#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 44235#(and (<= (select main_a main_x) 116) (not (= main_x main_y))), 44236#(and (not (= main_x main_y)) (<= (select main_a main_x) 117)), 44237#(and (not (= main_x main_y)) (<= (select main_a main_x) 118)), 44238#(and (not (= main_x main_y)) (<= (select main_a main_x) 119)), 44239#(and (<= (select main_a main_x) 120) (not (= main_x main_y))), 44240#(and (not (= main_x main_y)) (<= (select main_a main_x) 121)), 44241#(and (not (= main_x main_y)) (<= (select main_a main_x) 122)), 44242#(and (not (= main_x main_y)) (<= (select main_a main_x) 123)), 44243#(and (not (= main_x main_y)) (<= (select main_a main_x) 124)), 44244#(and (not (= main_x main_y)) (<= (select main_a main_x) 125)), 44245#(and (not (= main_x main_y)) (<= (select main_a main_x) 126)), 44246#(and (<= (select main_a main_x) 127) (not (= main_x main_y))), 44247#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:54:00,541 INFO L134 CoverageAnalysis]: Checked inductivity of 8256 backedges. 0 proven. 8256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:00,541 INFO L450 AbstractCegarLoop]: Interpolant automaton has 131 states [2018-07-23 13:54:00,543 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 131 interpolants. [2018-07-23 13:54:00,543 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8515, Invalid=8515, Unknown=0, NotChecked=0, Total=17030 [2018-07-23 13:54:00,544 INFO L87 Difference]: Start difference. First operand 132 states and 132 transitions. Second operand 131 states. [2018-07-23 13:54:00,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:00,753 INFO L93 Difference]: Finished difference Result 135 states and 135 transitions. [2018-07-23 13:54:00,754 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2018-07-23 13:54:00,754 INFO L78 Accepts]: Start accepts. Automaton has 131 states. Word has length 131 [2018-07-23 13:54:00,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:00,754 INFO L225 Difference]: With dead ends: 135 [2018-07-23 13:54:00,754 INFO L226 Difference]: Without dead ends: 133 [2018-07-23 13:54:00,755 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=8515, Invalid=8515, Unknown=0, NotChecked=0, Total=17030 [2018-07-23 13:54:00,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2018-07-23 13:54:00,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2018-07-23 13:54:00,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2018-07-23 13:54:00,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 133 transitions. [2018-07-23 13:54:00,761 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 133 transitions. Word has length 131 [2018-07-23 13:54:00,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:00,762 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 133 transitions. [2018-07-23 13:54:00,762 INFO L472 AbstractCegarLoop]: Interpolant automaton has 131 states. [2018-07-23 13:54:00,762 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 133 transitions. [2018-07-23 13:54:00,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-07-23 13:54:00,762 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:00,762 INFO L357 BasicCegarLoop]: trace histogram [129, 1, 1, 1] [2018-07-23 13:54:00,762 INFO L414 AbstractCegarLoop]: === Iteration 130 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:00,763 INFO L82 PathProgramCache]: Analyzing trace with hash 773650310, now seen corresponding path program 129 times [2018-07-23 13:54:00,763 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:00,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:02,879 INFO L134 CoverageAnalysis]: Checked inductivity of 8385 backedges. 0 proven. 8385 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:02,880 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:02,880 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [131] total 131 [2018-07-23 13:54:02,880 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:02,880 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 13:54:02,880 INFO L185 omatonBuilderFactory]: Interpolants [44800#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 44801#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 44802#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 44803#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 44804#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 44805#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 44806#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 44807#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 44808#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 44809#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 44810#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 44811#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 44812#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 44813#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 44814#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 44815#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 44816#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 44817#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 44818#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 44819#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 44820#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 44821#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 44822#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 44823#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 44824#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 44825#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 44826#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 44827#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 44828#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 44829#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 44830#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 44831#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 44832#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 44833#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 44834#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 44835#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 44836#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 44837#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 44838#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 44839#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 44840#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 44841#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 44842#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 44843#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 44844#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 44845#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 44846#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 44847#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 44848#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 44849#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 44850#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 44851#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 44852#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 44853#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 44854#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 44855#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 44856#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 44857#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 44858#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 44859#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 44860#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 44861#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 44862#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 44863#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 44864#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 44865#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 44866#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 44867#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 44868#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 44869#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 44870#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 44871#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 44872#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 44873#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 44874#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 44875#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 44876#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 44877#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 44878#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 44879#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 44880#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 44881#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 44882#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 44883#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 44884#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 44885#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 44886#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 44887#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 44888#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 44889#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 44890#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 44891#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 44892#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 44893#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 44894#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 44895#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 44896#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 44897#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 44898#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 44899#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 44900#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 44901#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 44902#(and (<= (select main_a main_x) 116) (not (= main_x main_y))), 44903#(and (not (= main_x main_y)) (<= (select main_a main_x) 117)), 44904#(and (not (= main_x main_y)) (<= (select main_a main_x) 118)), 44905#(and (not (= main_x main_y)) (<= (select main_a main_x) 119)), 44906#(and (<= (select main_a main_x) 120) (not (= main_x main_y))), 44907#(and (not (= main_x main_y)) (<= (select main_a main_x) 121)), 44908#(and (not (= main_x main_y)) (<= (select main_a main_x) 122)), 44909#(and (not (= main_x main_y)) (<= (select main_a main_x) 123)), 44910#(and (not (= main_x main_y)) (<= (select main_a main_x) 124)), 44911#(and (not (= main_x main_y)) (<= (select main_a main_x) 125)), 44912#(and (not (= main_x main_y)) (<= (select main_a main_x) 126)), 44913#(and (<= (select main_a main_x) 127) (not (= main_x main_y))), 44914#(and (not (= main_x main_y)) (<= (select main_a main_x) 128)), 44915#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 44784#true, 44785#false, 44786#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 44787#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 44788#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 44789#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 44790#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 44791#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 44792#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 44793#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 44794#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 44795#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 44796#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 44797#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 44798#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 44799#(and (not (= main_x main_y)) (<= (select main_a main_x) 13))] [2018-07-23 13:54:02,881 INFO L134 CoverageAnalysis]: Checked inductivity of 8385 backedges. 0 proven. 8385 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:02,881 INFO L450 AbstractCegarLoop]: Interpolant automaton has 132 states [2018-07-23 13:54:02,882 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 132 interpolants. [2018-07-23 13:54:02,882 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8646, Invalid=8646, Unknown=0, NotChecked=0, Total=17292 [2018-07-23 13:54:02,883 INFO L87 Difference]: Start difference. First operand 133 states and 133 transitions. Second operand 132 states. [2018-07-23 13:54:03,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:03,102 INFO L93 Difference]: Finished difference Result 136 states and 136 transitions. [2018-07-23 13:54:03,102 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2018-07-23 13:54:03,102 INFO L78 Accepts]: Start accepts. Automaton has 132 states. Word has length 132 [2018-07-23 13:54:03,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:03,102 INFO L225 Difference]: With dead ends: 136 [2018-07-23 13:54:03,102 INFO L226 Difference]: Without dead ends: 134 [2018-07-23 13:54:03,103 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=8646, Invalid=8646, Unknown=0, NotChecked=0, Total=17292 [2018-07-23 13:54:03,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2018-07-23 13:54:03,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2018-07-23 13:54:03,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2018-07-23 13:54:03,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 134 transitions. [2018-07-23 13:54:03,108 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 134 transitions. Word has length 132 [2018-07-23 13:54:03,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:03,108 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 134 transitions. [2018-07-23 13:54:03,109 INFO L472 AbstractCegarLoop]: Interpolant automaton has 132 states. [2018-07-23 13:54:03,109 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 134 transitions. [2018-07-23 13:54:03,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2018-07-23 13:54:03,109 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:03,109 INFO L357 BasicCegarLoop]: trace histogram [130, 1, 1, 1] [2018-07-23 13:54:03,109 INFO L414 AbstractCegarLoop]: === Iteration 131 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:03,109 INFO L82 PathProgramCache]: Analyzing trace with hash -1786648032, now seen corresponding path program 130 times [2018-07-23 13:54:03,109 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:03,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:05,061 INFO L134 CoverageAnalysis]: Checked inductivity of 8515 backedges. 0 proven. 8515 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:05,061 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:05,061 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [132] total 132 [2018-07-23 13:54:05,061 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:05,061 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 13:54:05,062 INFO L185 omatonBuilderFactory]: Interpolants [45568#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 45569#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 45570#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 45571#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 45572#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 45573#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 45574#(and (<= (select main_a main_x) 116) (not (= main_x main_y))), 45575#(and (not (= main_x main_y)) (<= (select main_a main_x) 117)), 45576#(and (not (= main_x main_y)) (<= (select main_a main_x) 118)), 45577#(and (not (= main_x main_y)) (<= (select main_a main_x) 119)), 45578#(and (<= (select main_a main_x) 120) (not (= main_x main_y))), 45579#(and (not (= main_x main_y)) (<= (select main_a main_x) 121)), 45580#(and (not (= main_x main_y)) (<= (select main_a main_x) 122)), 45581#(and (not (= main_x main_y)) (<= (select main_a main_x) 123)), 45582#(and (not (= main_x main_y)) (<= (select main_a main_x) 124)), 45583#(and (not (= main_x main_y)) (<= (select main_a main_x) 125)), 45584#(and (not (= main_x main_y)) (<= (select main_a main_x) 126)), 45585#(and (<= (select main_a main_x) 127) (not (= main_x main_y))), 45586#(and (not (= main_x main_y)) (<= (select main_a main_x) 128)), 45587#(and (not (= main_x main_y)) (<= (select main_a main_x) 129)), 45588#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 45456#true, 45457#false, 45458#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 45459#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 45460#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 45461#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 45462#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 45463#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 45464#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 45465#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 45466#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 45467#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 45468#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 45469#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 45470#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 45471#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 45472#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 45473#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 45474#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 45475#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 45476#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 45477#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 45478#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 45479#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 45480#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 45481#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 45482#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 45483#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 45484#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 45485#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 45486#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 45487#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 45488#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 45489#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 45490#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 45491#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 45492#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 45493#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 45494#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 45495#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 45496#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 45497#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 45498#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 45499#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 45500#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 45501#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 45502#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 45503#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 45504#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 45505#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 45506#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 45507#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 45508#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 45509#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 45510#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 45511#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 45512#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 45513#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 45514#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 45515#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 45516#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 45517#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 45518#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 45519#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 45520#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 45521#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 45522#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 45523#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 45524#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 45525#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 45526#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 45527#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 45528#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 45529#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 45530#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 45531#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 45532#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 45533#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 45534#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 45535#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 45536#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 45537#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 45538#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 45539#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 45540#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 45541#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 45542#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 45543#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 45544#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 45545#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 45546#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 45547#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 45548#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 45549#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 45550#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 45551#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 45552#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 45553#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 45554#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 45555#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 45556#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 45557#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 45558#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 45559#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 45560#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 45561#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 45562#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 45563#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 45564#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 45565#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 45566#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 45567#(and (not (= main_x main_y)) (<= (select main_a main_x) 109))] [2018-07-23 13:54:05,063 INFO L134 CoverageAnalysis]: Checked inductivity of 8515 backedges. 0 proven. 8515 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:05,063 INFO L450 AbstractCegarLoop]: Interpolant automaton has 133 states [2018-07-23 13:54:05,064 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 133 interpolants. [2018-07-23 13:54:05,065 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8778, Invalid=8778, Unknown=0, NotChecked=0, Total=17556 [2018-07-23 13:54:05,065 INFO L87 Difference]: Start difference. First operand 134 states and 134 transitions. Second operand 133 states. [2018-07-23 13:54:05,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:05,231 INFO L93 Difference]: Finished difference Result 137 states and 137 transitions. [2018-07-23 13:54:05,231 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2018-07-23 13:54:05,231 INFO L78 Accepts]: Start accepts. Automaton has 133 states. Word has length 133 [2018-07-23 13:54:05,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:05,231 INFO L225 Difference]: With dead ends: 137 [2018-07-23 13:54:05,231 INFO L226 Difference]: Without dead ends: 135 [2018-07-23 13:54:05,233 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=8778, Invalid=8778, Unknown=0, NotChecked=0, Total=17556 [2018-07-23 13:54:05,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2018-07-23 13:54:05,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2018-07-23 13:54:05,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2018-07-23 13:54:05,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 135 transitions. [2018-07-23 13:54:05,238 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 135 transitions. Word has length 133 [2018-07-23 13:54:05,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:05,238 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 135 transitions. [2018-07-23 13:54:05,238 INFO L472 AbstractCegarLoop]: Interpolant automaton has 133 states. [2018-07-23 13:54:05,238 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 135 transitions. [2018-07-23 13:54:05,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-07-23 13:54:05,238 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:05,238 INFO L357 BasicCegarLoop]: trace histogram [131, 1, 1, 1] [2018-07-23 13:54:05,239 INFO L414 AbstractCegarLoop]: === Iteration 132 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:05,239 INFO L82 PathProgramCache]: Analyzing trace with hash 448481990, now seen corresponding path program 131 times [2018-07-23 13:54:05,239 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:05,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:07,413 INFO L134 CoverageAnalysis]: Checked inductivity of 8646 backedges. 0 proven. 8646 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:07,413 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:07,413 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [133] total 133 [2018-07-23 13:54:07,413 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:07,414 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 13:54:07,414 INFO L185 omatonBuilderFactory]: Interpolants [46133#true, 46134#false, 46135#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 46136#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 46137#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 46138#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 46139#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 46140#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 46141#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 46142#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 46143#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 46144#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 46145#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 46146#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 46147#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 46148#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 46149#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 46150#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 46151#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 46152#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 46153#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 46154#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 46155#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 46156#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 46157#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 46158#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 46159#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 46160#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 46161#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 46162#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 46163#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 46164#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 46165#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 46166#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 46167#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 46168#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 46169#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 46170#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 46171#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 46172#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 46173#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 46174#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 46175#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 46176#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 46177#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 46178#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 46179#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 46180#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 46181#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 46182#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 46183#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 46184#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 46185#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 46186#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 46187#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 46188#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 46189#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 46190#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 46191#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 46192#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 46193#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 46194#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 46195#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 46196#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 46197#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 46198#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 46199#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 46200#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 46201#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 46202#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 46203#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 46204#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 46205#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 46206#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 46207#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 46208#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 46209#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 46210#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 46211#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 46212#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 46213#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 46214#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 46215#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 46216#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 46217#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 46218#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 46219#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 46220#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 46221#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 46222#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 46223#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 46224#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 46225#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 46226#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 46227#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 46228#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 46229#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 46230#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 46231#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 46232#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 46233#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 46234#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 46235#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 46236#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 46237#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 46238#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 46239#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 46240#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 46241#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 46242#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 46243#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 46244#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 46245#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 46246#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 46247#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 46248#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 46249#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 46250#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 46251#(and (<= (select main_a main_x) 116) (not (= main_x main_y))), 46252#(and (not (= main_x main_y)) (<= (select main_a main_x) 117)), 46253#(and (not (= main_x main_y)) (<= (select main_a main_x) 118)), 46254#(and (not (= main_x main_y)) (<= (select main_a main_x) 119)), 46255#(and (<= (select main_a main_x) 120) (not (= main_x main_y))), 46256#(and (not (= main_x main_y)) (<= (select main_a main_x) 121)), 46257#(and (not (= main_x main_y)) (<= (select main_a main_x) 122)), 46258#(and (not (= main_x main_y)) (<= (select main_a main_x) 123)), 46259#(and (not (= main_x main_y)) (<= (select main_a main_x) 124)), 46260#(and (not (= main_x main_y)) (<= (select main_a main_x) 125)), 46261#(and (not (= main_x main_y)) (<= (select main_a main_x) 126)), 46262#(and (<= (select main_a main_x) 127) (not (= main_x main_y))), 46263#(and (not (= main_x main_y)) (<= (select main_a main_x) 128)), 46264#(and (not (= main_x main_y)) (<= (select main_a main_x) 129)), 46265#(and (not (= main_x main_y)) (<= (select main_a main_x) 130)), 46266#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:54:07,414 INFO L134 CoverageAnalysis]: Checked inductivity of 8646 backedges. 0 proven. 8646 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:07,415 INFO L450 AbstractCegarLoop]: Interpolant automaton has 134 states [2018-07-23 13:54:07,416 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 134 interpolants. [2018-07-23 13:54:07,416 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8911, Invalid=8911, Unknown=0, NotChecked=0, Total=17822 [2018-07-23 13:54:07,416 INFO L87 Difference]: Start difference. First operand 135 states and 135 transitions. Second operand 134 states. [2018-07-23 13:54:07,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:07,635 INFO L93 Difference]: Finished difference Result 138 states and 138 transitions. [2018-07-23 13:54:07,635 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 134 states. [2018-07-23 13:54:07,636 INFO L78 Accepts]: Start accepts. Automaton has 134 states. Word has length 134 [2018-07-23 13:54:07,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:07,636 INFO L225 Difference]: With dead ends: 138 [2018-07-23 13:54:07,636 INFO L226 Difference]: Without dead ends: 136 [2018-07-23 13:54:07,637 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=8911, Invalid=8911, Unknown=0, NotChecked=0, Total=17822 [2018-07-23 13:54:07,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2018-07-23 13:54:07,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2018-07-23 13:54:07,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2018-07-23 13:54:07,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 136 transitions. [2018-07-23 13:54:07,644 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 136 transitions. Word has length 134 [2018-07-23 13:54:07,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:07,645 INFO L471 AbstractCegarLoop]: Abstraction has 136 states and 136 transitions. [2018-07-23 13:54:07,645 INFO L472 AbstractCegarLoop]: Interpolant automaton has 134 states. [2018-07-23 13:54:07,645 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 136 transitions. [2018-07-23 13:54:07,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2018-07-23 13:54:07,645 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:07,645 INFO L357 BasicCegarLoop]: trace histogram [132, 1, 1, 1] [2018-07-23 13:54:07,646 INFO L414 AbstractCegarLoop]: === Iteration 133 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:07,646 INFO L82 PathProgramCache]: Analyzing trace with hash 1018035936, now seen corresponding path program 132 times [2018-07-23 13:54:07,646 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:07,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:09,648 INFO L134 CoverageAnalysis]: Checked inductivity of 8778 backedges. 0 proven. 8778 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:09,648 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:09,648 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [134] total 134 [2018-07-23 13:54:09,649 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:09,649 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 13:54:09,649 INFO L185 omatonBuilderFactory]: Interpolants [46848#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 46849#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 46850#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 46851#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 46852#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 46853#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 46854#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 46855#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 46856#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 46857#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 46858#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 46859#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 46860#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 46861#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 46862#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 46863#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 46864#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 46865#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 46866#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 46867#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 46868#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 46869#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 46870#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 46871#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 46872#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 46873#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 46874#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 46875#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 46876#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 46877#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 46878#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 46879#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 46880#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 46881#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 46882#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 46883#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 46884#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 46885#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 46886#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 46887#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 46888#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 46889#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 46890#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 46891#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 46892#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 46893#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 46894#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 46895#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 46896#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 46897#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 46898#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 46899#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 46900#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 46901#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 46902#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 46903#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 46904#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 46905#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 46906#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 46907#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 46908#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 46909#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 46910#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 46911#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 46912#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 46913#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 46914#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 46915#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 46916#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 46917#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 46918#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 46919#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 46920#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 46921#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 46922#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 46923#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 46924#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 46925#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 46926#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 46927#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 46928#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 46929#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 46930#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 46931#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 46932#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 46933#(and (<= (select main_a main_x) 116) (not (= main_x main_y))), 46934#(and (not (= main_x main_y)) (<= (select main_a main_x) 117)), 46935#(and (not (= main_x main_y)) (<= (select main_a main_x) 118)), 46936#(and (not (= main_x main_y)) (<= (select main_a main_x) 119)), 46937#(and (<= (select main_a main_x) 120) (not (= main_x main_y))), 46938#(and (not (= main_x main_y)) (<= (select main_a main_x) 121)), 46939#(and (not (= main_x main_y)) (<= (select main_a main_x) 122)), 46940#(and (not (= main_x main_y)) (<= (select main_a main_x) 123)), 46941#(and (not (= main_x main_y)) (<= (select main_a main_x) 124)), 46942#(and (not (= main_x main_y)) (<= (select main_a main_x) 125)), 46943#(and (not (= main_x main_y)) (<= (select main_a main_x) 126)), 46944#(and (<= (select main_a main_x) 127) (not (= main_x main_y))), 46945#(and (not (= main_x main_y)) (<= (select main_a main_x) 128)), 46946#(and (not (= main_x main_y)) (<= (select main_a main_x) 129)), 46947#(and (not (= main_x main_y)) (<= (select main_a main_x) 130)), 46948#(and (<= (select main_a main_x) 131) (not (= main_x main_y))), 46949#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 46815#true, 46816#false, 46817#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 46818#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 46819#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 46820#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 46821#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 46822#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 46823#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 46824#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 46825#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 46826#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 46827#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 46828#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 46829#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 46830#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 46831#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 46832#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 46833#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 46834#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 46835#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 46836#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 46837#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 46838#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 46839#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 46840#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 46841#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 46842#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 46843#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 46844#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 46845#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 46846#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 46847#(and (not (= main_x main_y)) (<= (select main_a main_x) 30))] [2018-07-23 13:54:09,650 INFO L134 CoverageAnalysis]: Checked inductivity of 8778 backedges. 0 proven. 8778 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:09,650 INFO L450 AbstractCegarLoop]: Interpolant automaton has 135 states [2018-07-23 13:54:09,651 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 135 interpolants. [2018-07-23 13:54:09,652 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9045, Invalid=9045, Unknown=0, NotChecked=0, Total=18090 [2018-07-23 13:54:09,652 INFO L87 Difference]: Start difference. First operand 136 states and 136 transitions. Second operand 135 states. [2018-07-23 13:54:09,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:09,857 INFO L93 Difference]: Finished difference Result 139 states and 139 transitions. [2018-07-23 13:54:09,857 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2018-07-23 13:54:09,857 INFO L78 Accepts]: Start accepts. Automaton has 135 states. Word has length 135 [2018-07-23 13:54:09,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:09,858 INFO L225 Difference]: With dead ends: 139 [2018-07-23 13:54:09,858 INFO L226 Difference]: Without dead ends: 137 [2018-07-23 13:54:09,859 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=9045, Invalid=9045, Unknown=0, NotChecked=0, Total=18090 [2018-07-23 13:54:09,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2018-07-23 13:54:09,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2018-07-23 13:54:09,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2018-07-23 13:54:09,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 137 transitions. [2018-07-23 13:54:09,866 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 137 transitions. Word has length 135 [2018-07-23 13:54:09,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:09,867 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 137 transitions. [2018-07-23 13:54:09,867 INFO L472 AbstractCegarLoop]: Interpolant automaton has 135 states. [2018-07-23 13:54:09,867 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 137 transitions. [2018-07-23 13:54:09,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-07-23 13:54:09,868 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:09,868 INFO L357 BasicCegarLoop]: trace histogram [133, 1, 1, 1] [2018-07-23 13:54:09,868 INFO L414 AbstractCegarLoop]: === Iteration 134 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:09,868 INFO L82 PathProgramCache]: Analyzing trace with hash 1494339078, now seen corresponding path program 133 times [2018-07-23 13:54:09,868 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:10,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:12,121 INFO L134 CoverageAnalysis]: Checked inductivity of 8911 backedges. 0 proven. 8911 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:12,121 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:12,121 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [135] total 135 [2018-07-23 13:54:12,121 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:12,121 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 13:54:12,122 INFO L185 omatonBuilderFactory]: Interpolants [47616#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 47617#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 47618#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 47619#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 47620#(and (<= (select main_a main_x) 116) (not (= main_x main_y))), 47621#(and (not (= main_x main_y)) (<= (select main_a main_x) 117)), 47622#(and (not (= main_x main_y)) (<= (select main_a main_x) 118)), 47623#(and (not (= main_x main_y)) (<= (select main_a main_x) 119)), 47624#(and (<= (select main_a main_x) 120) (not (= main_x main_y))), 47625#(and (not (= main_x main_y)) (<= (select main_a main_x) 121)), 47626#(and (not (= main_x main_y)) (<= (select main_a main_x) 122)), 47627#(and (not (= main_x main_y)) (<= (select main_a main_x) 123)), 47628#(and (not (= main_x main_y)) (<= (select main_a main_x) 124)), 47629#(and (not (= main_x main_y)) (<= (select main_a main_x) 125)), 47630#(and (not (= main_x main_y)) (<= (select main_a main_x) 126)), 47631#(and (<= (select main_a main_x) 127) (not (= main_x main_y))), 47632#(and (not (= main_x main_y)) (<= (select main_a main_x) 128)), 47633#(and (not (= main_x main_y)) (<= (select main_a main_x) 129)), 47634#(and (not (= main_x main_y)) (<= (select main_a main_x) 130)), 47635#(and (<= (select main_a main_x) 131) (not (= main_x main_y))), 47636#(and (<= (select main_a main_x) 132) (not (= main_x main_y))), 47637#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 47502#true, 47503#false, 47504#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 47505#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 47506#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 47507#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 47508#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 47509#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 47510#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 47511#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 47512#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 47513#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 47514#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 47515#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 47516#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 47517#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 47518#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 47519#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 47520#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 47521#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 47522#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 47523#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 47524#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 47525#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 47526#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 47527#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 47528#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 47529#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 47530#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 47531#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 47532#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 47533#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 47534#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 47535#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 47536#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 47537#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 47538#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 47539#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 47540#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 47541#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 47542#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 47543#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 47544#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 47545#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 47546#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 47547#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 47548#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 47549#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 47550#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 47551#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 47552#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 47553#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 47554#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 47555#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 47556#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 47557#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 47558#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 47559#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 47560#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 47561#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 47562#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 47563#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 47564#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 47565#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 47566#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 47567#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 47568#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 47569#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 47570#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 47571#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 47572#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 47573#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 47574#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 47575#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 47576#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 47577#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 47578#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 47579#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 47580#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 47581#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 47582#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 47583#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 47584#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 47585#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 47586#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 47587#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 47588#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 47589#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 47590#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 47591#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 47592#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 47593#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 47594#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 47595#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 47596#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 47597#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 47598#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 47599#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 47600#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 47601#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 47602#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 47603#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 47604#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 47605#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 47606#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 47607#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 47608#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 47609#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 47610#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 47611#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 47612#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 47613#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 47614#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 47615#(and (<= (select main_a main_x) 111) (not (= main_x main_y)))] [2018-07-23 13:54:12,122 INFO L134 CoverageAnalysis]: Checked inductivity of 8911 backedges. 0 proven. 8911 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:12,122 INFO L450 AbstractCegarLoop]: Interpolant automaton has 136 states [2018-07-23 13:54:12,123 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 136 interpolants. [2018-07-23 13:54:12,124 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9180, Invalid=9180, Unknown=0, NotChecked=0, Total=18360 [2018-07-23 13:54:12,124 INFO L87 Difference]: Start difference. First operand 137 states and 137 transitions. Second operand 136 states. [2018-07-23 13:54:12,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:12,292 INFO L93 Difference]: Finished difference Result 140 states and 140 transitions. [2018-07-23 13:54:12,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2018-07-23 13:54:12,292 INFO L78 Accepts]: Start accepts. Automaton has 136 states. Word has length 136 [2018-07-23 13:54:12,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:12,293 INFO L225 Difference]: With dead ends: 140 [2018-07-23 13:54:12,293 INFO L226 Difference]: Without dead ends: 138 [2018-07-23 13:54:12,294 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=9180, Invalid=9180, Unknown=0, NotChecked=0, Total=18360 [2018-07-23 13:54:12,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2018-07-23 13:54:12,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2018-07-23 13:54:12,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2018-07-23 13:54:12,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 138 transitions. [2018-07-23 13:54:12,301 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 138 transitions. Word has length 136 [2018-07-23 13:54:12,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:12,301 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 138 transitions. [2018-07-23 13:54:12,301 INFO L472 AbstractCegarLoop]: Interpolant automaton has 136 states. [2018-07-23 13:54:12,301 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 138 transitions. [2018-07-23 13:54:12,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-07-23 13:54:12,302 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:12,302 INFO L357 BasicCegarLoop]: trace histogram [134, 1, 1, 1] [2018-07-23 13:54:12,302 INFO L414 AbstractCegarLoop]: === Iteration 135 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:12,302 INFO L82 PathProgramCache]: Analyzing trace with hash -920132704, now seen corresponding path program 134 times [2018-07-23 13:54:12,303 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:12,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:14,372 INFO L134 CoverageAnalysis]: Checked inductivity of 9045 backedges. 0 proven. 9045 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:14,372 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:14,372 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [136] total 136 [2018-07-23 13:54:14,372 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:14,372 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 13:54:14,373 INFO L185 omatonBuilderFactory]: Interpolants [48194#true, 48195#false, 48196#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 48197#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 48198#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 48199#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 48200#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 48201#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 48202#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 48203#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 48204#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 48205#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 48206#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 48207#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 48208#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 48209#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 48210#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 48211#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 48212#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 48213#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 48214#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 48215#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 48216#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 48217#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 48218#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 48219#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 48220#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 48221#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 48222#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 48223#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 48224#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 48225#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 48226#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 48227#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 48228#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 48229#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 48230#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 48231#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 48232#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 48233#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 48234#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 48235#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 48236#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 48237#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 48238#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 48239#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 48240#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 48241#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 48242#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 48243#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 48244#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 48245#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 48246#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 48247#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 48248#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 48249#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 48250#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 48251#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 48252#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 48253#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 48254#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 48255#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 48256#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 48257#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 48258#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 48259#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 48260#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 48261#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 48262#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 48263#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 48264#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 48265#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 48266#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 48267#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 48268#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 48269#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 48270#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 48271#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 48272#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 48273#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 48274#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 48275#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 48276#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 48277#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 48278#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 48279#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 48280#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 48281#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 48282#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 48283#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 48284#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 48285#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 48286#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 48287#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 48288#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 48289#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 48290#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 48291#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 48292#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 48293#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 48294#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 48295#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 48296#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 48297#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 48298#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 48299#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 48300#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 48301#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 48302#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 48303#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 48304#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 48305#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 48306#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 48307#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 48308#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 48309#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 48310#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 48311#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 48312#(and (<= (select main_a main_x) 116) (not (= main_x main_y))), 48313#(and (not (= main_x main_y)) (<= (select main_a main_x) 117)), 48314#(and (not (= main_x main_y)) (<= (select main_a main_x) 118)), 48315#(and (not (= main_x main_y)) (<= (select main_a main_x) 119)), 48316#(and (<= (select main_a main_x) 120) (not (= main_x main_y))), 48317#(and (not (= main_x main_y)) (<= (select main_a main_x) 121)), 48318#(and (not (= main_x main_y)) (<= (select main_a main_x) 122)), 48319#(and (not (= main_x main_y)) (<= (select main_a main_x) 123)), 48320#(and (not (= main_x main_y)) (<= (select main_a main_x) 124)), 48321#(and (not (= main_x main_y)) (<= (select main_a main_x) 125)), 48322#(and (not (= main_x main_y)) (<= (select main_a main_x) 126)), 48323#(and (<= (select main_a main_x) 127) (not (= main_x main_y))), 48324#(and (not (= main_x main_y)) (<= (select main_a main_x) 128)), 48325#(and (not (= main_x main_y)) (<= (select main_a main_x) 129)), 48326#(and (not (= main_x main_y)) (<= (select main_a main_x) 130)), 48327#(and (<= (select main_a main_x) 131) (not (= main_x main_y))), 48328#(and (<= (select main_a main_x) 132) (not (= main_x main_y))), 48329#(and (not (= main_x main_y)) (<= (select main_a main_x) 133)), 48330#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:54:14,374 INFO L134 CoverageAnalysis]: Checked inductivity of 9045 backedges. 0 proven. 9045 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:14,374 INFO L450 AbstractCegarLoop]: Interpolant automaton has 137 states [2018-07-23 13:54:14,375 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 137 interpolants. [2018-07-23 13:54:14,376 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9316, Invalid=9316, Unknown=0, NotChecked=0, Total=18632 [2018-07-23 13:54:14,376 INFO L87 Difference]: Start difference. First operand 138 states and 138 transitions. Second operand 137 states. [2018-07-23 13:54:14,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:14,605 INFO L93 Difference]: Finished difference Result 141 states and 141 transitions. [2018-07-23 13:54:14,605 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2018-07-23 13:54:14,605 INFO L78 Accepts]: Start accepts. Automaton has 137 states. Word has length 137 [2018-07-23 13:54:14,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:14,606 INFO L225 Difference]: With dead ends: 141 [2018-07-23 13:54:14,606 INFO L226 Difference]: Without dead ends: 139 [2018-07-23 13:54:14,606 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=9316, Invalid=9316, Unknown=0, NotChecked=0, Total=18632 [2018-07-23 13:54:14,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2018-07-23 13:54:14,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2018-07-23 13:54:14,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2018-07-23 13:54:14,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 139 transitions. [2018-07-23 13:54:14,611 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 139 transitions. Word has length 137 [2018-07-23 13:54:14,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:14,611 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 139 transitions. [2018-07-23 13:54:14,611 INFO L472 AbstractCegarLoop]: Interpolant automaton has 137 states. [2018-07-23 13:54:14,611 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 139 transitions. [2018-07-23 13:54:14,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-07-23 13:54:14,612 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:14,612 INFO L357 BasicCegarLoop]: trace histogram [135, 1, 1, 1] [2018-07-23 13:54:14,612 INFO L414 AbstractCegarLoop]: === Iteration 136 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:14,612 INFO L82 PathProgramCache]: Analyzing trace with hash 1540653382, now seen corresponding path program 135 times [2018-07-23 13:54:14,612 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:14,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:16,814 INFO L134 CoverageAnalysis]: Checked inductivity of 9180 backedges. 0 proven. 9180 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:16,814 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:16,814 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [137] total 137 [2018-07-23 13:54:16,815 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:16,815 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 13:54:16,815 INFO L185 omatonBuilderFactory]: Interpolants [48896#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 48897#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 48898#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 48899#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 48900#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 48901#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 48902#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 48903#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 48904#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 48905#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 48906#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 48907#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 48908#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 48909#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 48910#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 48911#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 48912#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 48913#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 48914#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 48915#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 48916#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 48917#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 48918#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 48919#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 48920#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 48921#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 48922#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 48923#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 48924#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 48925#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 48926#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 48927#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 48928#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 48929#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 48930#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 48931#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 48932#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 48933#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 48934#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 48935#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 48936#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 48937#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 48938#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 48939#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 48940#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 48941#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 48942#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 48943#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 48944#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 48945#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 48946#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 48947#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 48948#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 48949#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 48950#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 48951#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 48952#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 48953#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 48954#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 48955#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 48956#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 48957#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 48958#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 48959#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 48960#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 48961#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 48962#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 48963#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 48964#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 48965#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 48966#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 48967#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 48968#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 48969#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 48970#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 48971#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 48972#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 48973#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 48974#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 48975#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 48976#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 48977#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 48978#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 48979#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 48980#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 48981#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 48982#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 48983#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 48984#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 48985#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 48986#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 48987#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 48988#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 48989#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 48990#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 48991#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 48992#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 48993#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 48994#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 48995#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 48996#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 48997#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 48998#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 48999#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 49000#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 49001#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 49002#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 49003#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 49004#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 49005#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 49006#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 49007#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 49008#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 49009#(and (<= (select main_a main_x) 116) (not (= main_x main_y))), 49010#(and (not (= main_x main_y)) (<= (select main_a main_x) 117)), 49011#(and (not (= main_x main_y)) (<= (select main_a main_x) 118)), 49012#(and (not (= main_x main_y)) (<= (select main_a main_x) 119)), 49013#(and (<= (select main_a main_x) 120) (not (= main_x main_y))), 49014#(and (not (= main_x main_y)) (<= (select main_a main_x) 121)), 49015#(and (not (= main_x main_y)) (<= (select main_a main_x) 122)), 49016#(and (not (= main_x main_y)) (<= (select main_a main_x) 123)), 49017#(and (not (= main_x main_y)) (<= (select main_a main_x) 124)), 49018#(and (not (= main_x main_y)) (<= (select main_a main_x) 125)), 49019#(and (not (= main_x main_y)) (<= (select main_a main_x) 126)), 49020#(and (<= (select main_a main_x) 127) (not (= main_x main_y))), 49021#(and (not (= main_x main_y)) (<= (select main_a main_x) 128)), 49022#(and (not (= main_x main_y)) (<= (select main_a main_x) 129)), 49023#(and (not (= main_x main_y)) (<= (select main_a main_x) 130)), 49024#(and (<= (select main_a main_x) 131) (not (= main_x main_y))), 49025#(and (<= (select main_a main_x) 132) (not (= main_x main_y))), 49026#(and (not (= main_x main_y)) (<= (select main_a main_x) 133)), 49027#(and (not (= main_x main_y)) (<= (select main_a main_x) 134)), 49028#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 48891#true, 48892#false, 48893#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 48894#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 48895#(and (not (= main_x main_y)) (<= (select main_a main_x) 2))] [2018-07-23 13:54:16,816 INFO L134 CoverageAnalysis]: Checked inductivity of 9180 backedges. 0 proven. 9180 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:16,816 INFO L450 AbstractCegarLoop]: Interpolant automaton has 138 states [2018-07-23 13:54:16,816 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 138 interpolants. [2018-07-23 13:54:16,817 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9453, Invalid=9453, Unknown=0, NotChecked=0, Total=18906 [2018-07-23 13:54:16,817 INFO L87 Difference]: Start difference. First operand 139 states and 139 transitions. Second operand 138 states. [2018-07-23 13:54:17,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:17,042 INFO L93 Difference]: Finished difference Result 142 states and 142 transitions. [2018-07-23 13:54:17,043 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2018-07-23 13:54:17,043 INFO L78 Accepts]: Start accepts. Automaton has 138 states. Word has length 138 [2018-07-23 13:54:17,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:17,043 INFO L225 Difference]: With dead ends: 142 [2018-07-23 13:54:17,043 INFO L226 Difference]: Without dead ends: 140 [2018-07-23 13:54:17,044 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=9453, Invalid=9453, Unknown=0, NotChecked=0, Total=18906 [2018-07-23 13:54:17,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2018-07-23 13:54:17,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2018-07-23 13:54:17,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2018-07-23 13:54:17,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 140 transitions. [2018-07-23 13:54:17,048 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 140 transitions. Word has length 138 [2018-07-23 13:54:17,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:17,048 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 140 transitions. [2018-07-23 13:54:17,048 INFO L472 AbstractCegarLoop]: Interpolant automaton has 138 states. [2018-07-23 13:54:17,048 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 140 transitions. [2018-07-23 13:54:17,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2018-07-23 13:54:17,049 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:17,049 INFO L357 BasicCegarLoop]: trace histogram [136, 1, 1, 1] [2018-07-23 13:54:17,049 INFO L414 AbstractCegarLoop]: === Iteration 137 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:17,049 INFO L82 PathProgramCache]: Analyzing trace with hash 515610720, now seen corresponding path program 136 times [2018-07-23 13:54:17,049 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:17,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:18,945 INFO L134 CoverageAnalysis]: Checked inductivity of 9316 backedges. 0 proven. 9316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:18,946 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:18,946 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [138] total 138 [2018-07-23 13:54:18,946 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:18,946 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 13:54:18,947 INFO L185 omatonBuilderFactory]: Interpolants [49664#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 49665#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 49666#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 49667#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 49668#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 49669#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 49670#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 49671#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 49672#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 49673#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 49674#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 49675#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 49676#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 49677#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 49678#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 49679#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 49680#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 49681#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 49682#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 49683#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 49684#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 49685#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 49686#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 49687#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 49688#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 49689#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 49690#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 49691#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 49692#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 49693#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 49694#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 49695#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 49696#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 49697#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 49698#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 49699#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 49700#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 49701#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 49702#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 49703#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 49704#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 49705#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 49706#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 49707#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 49708#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 49709#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 49710#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 49711#(and (<= (select main_a main_x) 116) (not (= main_x main_y))), 49712#(and (not (= main_x main_y)) (<= (select main_a main_x) 117)), 49713#(and (not (= main_x main_y)) (<= (select main_a main_x) 118)), 49714#(and (not (= main_x main_y)) (<= (select main_a main_x) 119)), 49715#(and (<= (select main_a main_x) 120) (not (= main_x main_y))), 49716#(and (not (= main_x main_y)) (<= (select main_a main_x) 121)), 49717#(and (not (= main_x main_y)) (<= (select main_a main_x) 122)), 49718#(and (not (= main_x main_y)) (<= (select main_a main_x) 123)), 49719#(and (not (= main_x main_y)) (<= (select main_a main_x) 124)), 49720#(and (not (= main_x main_y)) (<= (select main_a main_x) 125)), 49721#(and (not (= main_x main_y)) (<= (select main_a main_x) 126)), 49722#(and (<= (select main_a main_x) 127) (not (= main_x main_y))), 49723#(and (not (= main_x main_y)) (<= (select main_a main_x) 128)), 49724#(and (not (= main_x main_y)) (<= (select main_a main_x) 129)), 49725#(and (not (= main_x main_y)) (<= (select main_a main_x) 130)), 49726#(and (<= (select main_a main_x) 131) (not (= main_x main_y))), 49727#(and (<= (select main_a main_x) 132) (not (= main_x main_y))), 49728#(and (not (= main_x main_y)) (<= (select main_a main_x) 133)), 49729#(and (not (= main_x main_y)) (<= (select main_a main_x) 134)), 49730#(and (not (= main_x main_y)) (<= (select main_a main_x) 135)), 49731#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 49593#true, 49594#false, 49595#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 49596#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 49597#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 49598#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 49599#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 49600#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 49601#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 49602#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 49603#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 49604#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 49605#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 49606#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 49607#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 49608#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 49609#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 49610#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 49611#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 49612#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 49613#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 49614#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 49615#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 49616#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 49617#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 49618#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 49619#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 49620#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 49621#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 49622#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 49623#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 49624#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 49625#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 49626#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 49627#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 49628#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 49629#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 49630#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 49631#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 49632#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 49633#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 49634#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 49635#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 49636#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 49637#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 49638#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 49639#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 49640#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 49641#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 49642#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 49643#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 49644#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 49645#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 49646#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 49647#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 49648#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 49649#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 49650#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 49651#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 49652#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 49653#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 49654#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 49655#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 49656#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 49657#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 49658#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 49659#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 49660#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 49661#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 49662#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 49663#(and (not (= main_x main_y)) (<= (select main_a main_x) 68))] [2018-07-23 13:54:18,948 INFO L134 CoverageAnalysis]: Checked inductivity of 9316 backedges. 0 proven. 9316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:18,948 INFO L450 AbstractCegarLoop]: Interpolant automaton has 139 states [2018-07-23 13:54:18,949 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 139 interpolants. [2018-07-23 13:54:18,950 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9591, Invalid=9591, Unknown=0, NotChecked=0, Total=19182 [2018-07-23 13:54:18,950 INFO L87 Difference]: Start difference. First operand 140 states and 140 transitions. Second operand 139 states. [2018-07-23 13:54:19,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:19,061 INFO L93 Difference]: Finished difference Result 143 states and 143 transitions. [2018-07-23 13:54:19,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 139 states. [2018-07-23 13:54:19,061 INFO L78 Accepts]: Start accepts. Automaton has 139 states. Word has length 139 [2018-07-23 13:54:19,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:19,062 INFO L225 Difference]: With dead ends: 143 [2018-07-23 13:54:19,062 INFO L226 Difference]: Without dead ends: 141 [2018-07-23 13:54:19,063 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=9591, Invalid=9591, Unknown=0, NotChecked=0, Total=19182 [2018-07-23 13:54:19,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2018-07-23 13:54:19,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2018-07-23 13:54:19,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2018-07-23 13:54:19,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 141 transitions. [2018-07-23 13:54:19,067 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 141 transitions. Word has length 139 [2018-07-23 13:54:19,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:19,067 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 141 transitions. [2018-07-23 13:54:19,067 INFO L472 AbstractCegarLoop]: Interpolant automaton has 139 states. [2018-07-23 13:54:19,068 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 141 transitions. [2018-07-23 13:54:19,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-07-23 13:54:19,068 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:19,068 INFO L357 BasicCegarLoop]: trace histogram [137, 1, 1, 1] [2018-07-23 13:54:19,068 INFO L414 AbstractCegarLoop]: === Iteration 138 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:19,068 INFO L82 PathProgramCache]: Analyzing trace with hash -1195940730, now seen corresponding path program 137 times [2018-07-23 13:54:19,068 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:19,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:21,311 INFO L134 CoverageAnalysis]: Checked inductivity of 9453 backedges. 0 proven. 9453 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:21,312 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:21,312 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [139] total 139 [2018-07-23 13:54:21,312 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:21,312 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 13:54:21,313 INFO L185 omatonBuilderFactory]: Interpolants [50432#(and (not (= main_x main_y)) (<= (select main_a main_x) 130)), 50433#(and (<= (select main_a main_x) 131) (not (= main_x main_y))), 50434#(and (<= (select main_a main_x) 132) (not (= main_x main_y))), 50435#(and (not (= main_x main_y)) (<= (select main_a main_x) 133)), 50436#(and (not (= main_x main_y)) (<= (select main_a main_x) 134)), 50437#(and (not (= main_x main_y)) (<= (select main_a main_x) 135)), 50438#(and (<= (select main_a main_x) 136) (not (= main_x main_y))), 50439#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 50300#true, 50301#false, 50302#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 50303#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 50304#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 50305#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 50306#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 50307#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 50308#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 50309#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 50310#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 50311#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 50312#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 50313#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 50314#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 50315#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 50316#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 50317#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 50318#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 50319#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 50320#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 50321#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 50322#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 50323#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 50324#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 50325#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 50326#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 50327#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 50328#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 50329#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 50330#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 50331#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 50332#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 50333#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 50334#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 50335#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 50336#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 50337#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 50338#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 50339#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 50340#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 50341#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 50342#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 50343#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 50344#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 50345#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 50346#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 50347#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 50348#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 50349#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 50350#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 50351#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 50352#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 50353#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 50354#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 50355#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 50356#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 50357#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 50358#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 50359#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 50360#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 50361#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 50362#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 50363#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 50364#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 50365#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 50366#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 50367#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 50368#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 50369#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 50370#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 50371#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 50372#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 50373#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 50374#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 50375#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 50376#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 50377#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 50378#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 50379#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 50380#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 50381#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 50382#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 50383#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 50384#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 50385#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 50386#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 50387#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 50388#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 50389#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 50390#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 50391#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 50392#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 50393#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 50394#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 50395#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 50396#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 50397#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 50398#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 50399#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 50400#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 50401#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 50402#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 50403#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 50404#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 50405#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 50406#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 50407#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 50408#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 50409#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 50410#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 50411#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 50412#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 50413#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 50414#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 50415#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 50416#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 50417#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 50418#(and (<= (select main_a main_x) 116) (not (= main_x main_y))), 50419#(and (not (= main_x main_y)) (<= (select main_a main_x) 117)), 50420#(and (not (= main_x main_y)) (<= (select main_a main_x) 118)), 50421#(and (not (= main_x main_y)) (<= (select main_a main_x) 119)), 50422#(and (<= (select main_a main_x) 120) (not (= main_x main_y))), 50423#(and (not (= main_x main_y)) (<= (select main_a main_x) 121)), 50424#(and (not (= main_x main_y)) (<= (select main_a main_x) 122)), 50425#(and (not (= main_x main_y)) (<= (select main_a main_x) 123)), 50426#(and (not (= main_x main_y)) (<= (select main_a main_x) 124)), 50427#(and (not (= main_x main_y)) (<= (select main_a main_x) 125)), 50428#(and (not (= main_x main_y)) (<= (select main_a main_x) 126)), 50429#(and (<= (select main_a main_x) 127) (not (= main_x main_y))), 50430#(and (not (= main_x main_y)) (<= (select main_a main_x) 128)), 50431#(and (not (= main_x main_y)) (<= (select main_a main_x) 129))] [2018-07-23 13:54:21,313 INFO L134 CoverageAnalysis]: Checked inductivity of 9453 backedges. 0 proven. 9453 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:21,313 INFO L450 AbstractCegarLoop]: Interpolant automaton has 140 states [2018-07-23 13:54:21,315 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 140 interpolants. [2018-07-23 13:54:21,315 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9730, Invalid=9730, Unknown=0, NotChecked=0, Total=19460 [2018-07-23 13:54:21,315 INFO L87 Difference]: Start difference. First operand 141 states and 141 transitions. Second operand 140 states. [2018-07-23 13:54:21,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:21,559 INFO L93 Difference]: Finished difference Result 144 states and 144 transitions. [2018-07-23 13:54:21,559 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 140 states. [2018-07-23 13:54:21,559 INFO L78 Accepts]: Start accepts. Automaton has 140 states. Word has length 140 [2018-07-23 13:54:21,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:21,559 INFO L225 Difference]: With dead ends: 144 [2018-07-23 13:54:21,559 INFO L226 Difference]: Without dead ends: 142 [2018-07-23 13:54:21,560 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=9730, Invalid=9730, Unknown=0, NotChecked=0, Total=19460 [2018-07-23 13:54:21,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2018-07-23 13:54:21,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2018-07-23 13:54:21,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2018-07-23 13:54:21,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 142 transitions. [2018-07-23 13:54:21,565 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 142 transitions. Word has length 140 [2018-07-23 13:54:21,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:21,565 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 142 transitions. [2018-07-23 13:54:21,565 INFO L472 AbstractCegarLoop]: Interpolant automaton has 140 states. [2018-07-23 13:54:21,565 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 142 transitions. [2018-07-23 13:54:21,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-07-23 13:54:21,566 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:21,566 INFO L357 BasicCegarLoop]: trace histogram [138, 1, 1, 1] [2018-07-23 13:54:21,566 INFO L414 AbstractCegarLoop]: === Iteration 139 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:21,566 INFO L82 PathProgramCache]: Analyzing trace with hash 1580539168, now seen corresponding path program 138 times [2018-07-23 13:54:21,566 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:21,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:23,709 INFO L134 CoverageAnalysis]: Checked inductivity of 9591 backedges. 0 proven. 9591 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:23,710 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:23,710 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [140] total 140 [2018-07-23 13:54:23,710 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:23,710 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 13:54:23,710 INFO L185 omatonBuilderFactory]: Interpolants [51012#true, 51013#false, 51014#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 51015#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 51016#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 51017#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 51018#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 51019#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 51020#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 51021#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 51022#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 51023#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 51024#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 51025#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 51026#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 51027#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 51028#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 51029#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 51030#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 51031#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 51032#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 51033#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 51034#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 51035#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 51036#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 51037#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 51038#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 51039#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 51040#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 51041#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 51042#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 51043#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 51044#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 51045#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 51046#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 51047#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 51048#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 51049#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 51050#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 51051#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 51052#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 51053#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 51054#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 51055#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 51056#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 51057#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 51058#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 51059#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 51060#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 51061#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 51062#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 51063#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 51064#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 51065#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 51066#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 51067#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 51068#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 51069#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 51070#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 51071#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 51072#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 51073#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 51074#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 51075#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 51076#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 51077#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 51078#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 51079#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 51080#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 51081#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 51082#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 51083#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 51084#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 51085#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 51086#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 51087#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 51088#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 51089#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 51090#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 51091#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 51092#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 51093#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 51094#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 51095#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 51096#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 51097#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 51098#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 51099#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 51100#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 51101#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 51102#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 51103#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 51104#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 51105#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 51106#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 51107#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 51108#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 51109#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 51110#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 51111#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 51112#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 51113#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 51114#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 51115#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 51116#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 51117#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 51118#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 51119#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 51120#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 51121#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 51122#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 51123#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 51124#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 51125#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 51126#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 51127#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 51128#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 51129#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 51130#(and (<= (select main_a main_x) 116) (not (= main_x main_y))), 51131#(and (not (= main_x main_y)) (<= (select main_a main_x) 117)), 51132#(and (not (= main_x main_y)) (<= (select main_a main_x) 118)), 51133#(and (not (= main_x main_y)) (<= (select main_a main_x) 119)), 51134#(and (<= (select main_a main_x) 120) (not (= main_x main_y))), 51135#(and (not (= main_x main_y)) (<= (select main_a main_x) 121)), 51136#(and (not (= main_x main_y)) (<= (select main_a main_x) 122)), 51137#(and (not (= main_x main_y)) (<= (select main_a main_x) 123)), 51138#(and (not (= main_x main_y)) (<= (select main_a main_x) 124)), 51139#(and (not (= main_x main_y)) (<= (select main_a main_x) 125)), 51140#(and (not (= main_x main_y)) (<= (select main_a main_x) 126)), 51141#(and (<= (select main_a main_x) 127) (not (= main_x main_y))), 51142#(and (not (= main_x main_y)) (<= (select main_a main_x) 128)), 51143#(and (not (= main_x main_y)) (<= (select main_a main_x) 129)), 51144#(and (not (= main_x main_y)) (<= (select main_a main_x) 130)), 51145#(and (<= (select main_a main_x) 131) (not (= main_x main_y))), 51146#(and (<= (select main_a main_x) 132) (not (= main_x main_y))), 51147#(and (not (= main_x main_y)) (<= (select main_a main_x) 133)), 51148#(and (not (= main_x main_y)) (<= (select main_a main_x) 134)), 51149#(and (not (= main_x main_y)) (<= (select main_a main_x) 135)), 51150#(and (<= (select main_a main_x) 136) (not (= main_x main_y))), 51151#(and (<= (select main_a main_x) 137) (not (= main_x main_y))), 51152#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:54:23,711 INFO L134 CoverageAnalysis]: Checked inductivity of 9591 backedges. 0 proven. 9591 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:23,711 INFO L450 AbstractCegarLoop]: Interpolant automaton has 141 states [2018-07-23 13:54:23,713 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 141 interpolants. [2018-07-23 13:54:23,714 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9870, Invalid=9870, Unknown=0, NotChecked=0, Total=19740 [2018-07-23 13:54:23,714 INFO L87 Difference]: Start difference. First operand 142 states and 142 transitions. Second operand 141 states. [2018-07-23 13:54:23,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:23,999 INFO L93 Difference]: Finished difference Result 145 states and 145 transitions. [2018-07-23 13:54:24,000 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 141 states. [2018-07-23 13:54:24,000 INFO L78 Accepts]: Start accepts. Automaton has 141 states. Word has length 141 [2018-07-23 13:54:24,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:24,000 INFO L225 Difference]: With dead ends: 145 [2018-07-23 13:54:24,000 INFO L226 Difference]: Without dead ends: 143 [2018-07-23 13:54:24,001 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=9870, Invalid=9870, Unknown=0, NotChecked=0, Total=19740 [2018-07-23 13:54:24,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2018-07-23 13:54:24,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2018-07-23 13:54:24,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2018-07-23 13:54:24,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 143 transitions. [2018-07-23 13:54:24,007 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 143 transitions. Word has length 141 [2018-07-23 13:54:24,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:24,007 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 143 transitions. [2018-07-23 13:54:24,007 INFO L472 AbstractCegarLoop]: Interpolant automaton has 141 states. [2018-07-23 13:54:24,007 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 143 transitions. [2018-07-23 13:54:24,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-07-23 13:54:24,008 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:24,008 INFO L357 BasicCegarLoop]: trace histogram [139, 1, 1, 1] [2018-07-23 13:54:24,008 INFO L414 AbstractCegarLoop]: === Iteration 140 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:24,008 INFO L82 PathProgramCache]: Analyzing trace with hash 1752070086, now seen corresponding path program 139 times [2018-07-23 13:54:24,008 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:24,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:26,344 INFO L134 CoverageAnalysis]: Checked inductivity of 9730 backedges. 0 proven. 9730 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:26,345 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:26,345 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [141] total 141 [2018-07-23 13:54:26,345 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:26,345 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 13:54:26,345 INFO L185 omatonBuilderFactory]: Interpolants [51729#true, 51730#false, 51731#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 51732#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 51733#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 51734#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 51735#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 51736#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 51737#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 51738#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 51739#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 51740#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 51741#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 51742#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 51743#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 51744#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 51745#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 51746#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 51747#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 51748#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 51749#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 51750#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 51751#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 51752#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 51753#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 51754#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 51755#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 51756#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 51757#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 51758#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 51759#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 51760#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 51761#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 51762#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 51763#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 51764#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 51765#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 51766#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 51767#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 51768#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 51769#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 51770#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 51771#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 51772#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 51773#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 51774#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 51775#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 51776#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 51777#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 51778#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 51779#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 51780#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 51781#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 51782#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 51783#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 51784#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 51785#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 51786#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 51787#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 51788#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 51789#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 51790#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 51791#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 51792#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 51793#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 51794#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 51795#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 51796#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 51797#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 51798#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 51799#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 51800#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 51801#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 51802#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 51803#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 51804#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 51805#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 51806#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 51807#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 51808#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 51809#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 51810#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 51811#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 51812#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 51813#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 51814#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 51815#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 51816#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 51817#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 51818#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 51819#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 51820#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 51821#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 51822#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 51823#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 51824#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 51825#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 51826#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 51827#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 51828#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 51829#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 51830#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 51831#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 51832#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 51833#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 51834#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 51835#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 51836#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 51837#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 51838#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 51839#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 51840#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 51841#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 51842#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 51843#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 51844#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 51845#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 51846#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 51847#(and (<= (select main_a main_x) 116) (not (= main_x main_y))), 51848#(and (not (= main_x main_y)) (<= (select main_a main_x) 117)), 51849#(and (not (= main_x main_y)) (<= (select main_a main_x) 118)), 51850#(and (not (= main_x main_y)) (<= (select main_a main_x) 119)), 51851#(and (<= (select main_a main_x) 120) (not (= main_x main_y))), 51852#(and (not (= main_x main_y)) (<= (select main_a main_x) 121)), 51853#(and (not (= main_x main_y)) (<= (select main_a main_x) 122)), 51854#(and (not (= main_x main_y)) (<= (select main_a main_x) 123)), 51855#(and (not (= main_x main_y)) (<= (select main_a main_x) 124)), 51856#(and (not (= main_x main_y)) (<= (select main_a main_x) 125)), 51857#(and (not (= main_x main_y)) (<= (select main_a main_x) 126)), 51858#(and (<= (select main_a main_x) 127) (not (= main_x main_y))), 51859#(and (not (= main_x main_y)) (<= (select main_a main_x) 128)), 51860#(and (not (= main_x main_y)) (<= (select main_a main_x) 129)), 51861#(and (not (= main_x main_y)) (<= (select main_a main_x) 130)), 51862#(and (<= (select main_a main_x) 131) (not (= main_x main_y))), 51863#(and (<= (select main_a main_x) 132) (not (= main_x main_y))), 51864#(and (not (= main_x main_y)) (<= (select main_a main_x) 133)), 51865#(and (not (= main_x main_y)) (<= (select main_a main_x) 134)), 51866#(and (not (= main_x main_y)) (<= (select main_a main_x) 135)), 51867#(and (<= (select main_a main_x) 136) (not (= main_x main_y))), 51868#(and (<= (select main_a main_x) 137) (not (= main_x main_y))), 51869#(and (not (= main_x main_y)) (<= (select main_a main_x) 138)), 51870#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:54:26,346 INFO L134 CoverageAnalysis]: Checked inductivity of 9730 backedges. 0 proven. 9730 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:26,346 INFO L450 AbstractCegarLoop]: Interpolant automaton has 142 states [2018-07-23 13:54:26,347 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 142 interpolants. [2018-07-23 13:54:26,347 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10011, Invalid=10011, Unknown=0, NotChecked=0, Total=20022 [2018-07-23 13:54:26,347 INFO L87 Difference]: Start difference. First operand 143 states and 143 transitions. Second operand 142 states. [2018-07-23 13:54:26,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:26,620 INFO L93 Difference]: Finished difference Result 146 states and 146 transitions. [2018-07-23 13:54:26,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 142 states. [2018-07-23 13:54:26,620 INFO L78 Accepts]: Start accepts. Automaton has 142 states. Word has length 142 [2018-07-23 13:54:26,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:26,620 INFO L225 Difference]: With dead ends: 146 [2018-07-23 13:54:26,620 INFO L226 Difference]: Without dead ends: 144 [2018-07-23 13:54:26,621 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=10011, Invalid=10011, Unknown=0, NotChecked=0, Total=20022 [2018-07-23 13:54:26,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2018-07-23 13:54:26,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2018-07-23 13:54:26,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2018-07-23 13:54:26,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 144 transitions. [2018-07-23 13:54:26,629 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 144 transitions. Word has length 142 [2018-07-23 13:54:26,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:26,629 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 144 transitions. [2018-07-23 13:54:26,629 INFO L472 AbstractCegarLoop]: Interpolant automaton has 142 states. [2018-07-23 13:54:26,629 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 144 transitions. [2018-07-23 13:54:26,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-07-23 13:54:26,630 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:26,630 INFO L357 BasicCegarLoop]: trace histogram [140, 1, 1, 1] [2018-07-23 13:54:26,630 INFO L414 AbstractCegarLoop]: === Iteration 141 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:26,630 INFO L82 PathProgramCache]: Analyzing trace with hash -1520406048, now seen corresponding path program 140 times [2018-07-23 13:54:26,630 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:26,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:28,707 INFO L134 CoverageAnalysis]: Checked inductivity of 9870 backedges. 0 proven. 9870 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:28,707 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:28,707 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [142] total 142 [2018-07-23 13:54:28,708 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:28,708 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 13:54:28,708 INFO L185 omatonBuilderFactory]: Interpolants [52480#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 52481#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 52482#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 52483#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 52484#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 52485#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 52486#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 52487#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 52488#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 52489#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 52490#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 52491#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 52492#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 52493#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 52494#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 52495#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 52496#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 52497#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 52498#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 52499#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 52500#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 52501#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 52502#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 52503#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 52504#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 52505#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 52506#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 52507#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 52508#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 52509#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 52510#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 52511#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 52512#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 52513#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 52514#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 52515#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 52516#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 52517#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 52518#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 52519#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 52520#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 52521#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 52522#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 52523#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 52524#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 52525#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 52526#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 52527#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 52528#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 52529#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 52530#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 52531#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 52532#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 52533#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 52534#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 52535#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 52536#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 52537#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 52538#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 52539#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 52540#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 52541#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 52542#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 52543#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 52544#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 52545#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 52546#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 52547#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 52548#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 52549#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 52550#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 52551#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 52552#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 52553#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 52554#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 52555#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 52556#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 52557#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 52558#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 52559#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 52560#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 52561#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 52562#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 52563#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 52564#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 52565#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 52566#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 52567#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 52568#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 52569#(and (<= (select main_a main_x) 116) (not (= main_x main_y))), 52570#(and (not (= main_x main_y)) (<= (select main_a main_x) 117)), 52571#(and (not (= main_x main_y)) (<= (select main_a main_x) 118)), 52572#(and (not (= main_x main_y)) (<= (select main_a main_x) 119)), 52573#(and (<= (select main_a main_x) 120) (not (= main_x main_y))), 52574#(and (not (= main_x main_y)) (<= (select main_a main_x) 121)), 52575#(and (not (= main_x main_y)) (<= (select main_a main_x) 122)), 52576#(and (not (= main_x main_y)) (<= (select main_a main_x) 123)), 52577#(and (not (= main_x main_y)) (<= (select main_a main_x) 124)), 52578#(and (not (= main_x main_y)) (<= (select main_a main_x) 125)), 52579#(and (not (= main_x main_y)) (<= (select main_a main_x) 126)), 52580#(and (<= (select main_a main_x) 127) (not (= main_x main_y))), 52581#(and (not (= main_x main_y)) (<= (select main_a main_x) 128)), 52582#(and (not (= main_x main_y)) (<= (select main_a main_x) 129)), 52583#(and (not (= main_x main_y)) (<= (select main_a main_x) 130)), 52584#(and (<= (select main_a main_x) 131) (not (= main_x main_y))), 52585#(and (<= (select main_a main_x) 132) (not (= main_x main_y))), 52586#(and (not (= main_x main_y)) (<= (select main_a main_x) 133)), 52587#(and (not (= main_x main_y)) (<= (select main_a main_x) 134)), 52588#(and (not (= main_x main_y)) (<= (select main_a main_x) 135)), 52589#(and (<= (select main_a main_x) 136) (not (= main_x main_y))), 52590#(and (<= (select main_a main_x) 137) (not (= main_x main_y))), 52591#(and (not (= main_x main_y)) (<= (select main_a main_x) 138)), 52592#(and (not (= main_x main_y)) (<= (select main_a main_x) 139)), 52593#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 52451#true, 52452#false, 52453#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 52454#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 52455#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 52456#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 52457#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 52458#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 52459#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 52460#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 52461#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 52462#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 52463#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 52464#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 52465#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 52466#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 52467#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 52468#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 52469#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 52470#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 52471#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 52472#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 52473#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 52474#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 52475#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 52476#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 52477#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 52478#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 52479#(and (<= (select main_a main_x) 26) (not (= main_x main_y)))] [2018-07-23 13:54:28,709 INFO L134 CoverageAnalysis]: Checked inductivity of 9870 backedges. 0 proven. 9870 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:28,710 INFO L450 AbstractCegarLoop]: Interpolant automaton has 143 states [2018-07-23 13:54:28,712 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 143 interpolants. [2018-07-23 13:54:28,713 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10153, Invalid=10153, Unknown=0, NotChecked=0, Total=20306 [2018-07-23 13:54:28,713 INFO L87 Difference]: Start difference. First operand 144 states and 144 transitions. Second operand 143 states. [2018-07-23 13:54:28,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:28,935 INFO L93 Difference]: Finished difference Result 147 states and 147 transitions. [2018-07-23 13:54:28,935 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2018-07-23 13:54:28,935 INFO L78 Accepts]: Start accepts. Automaton has 143 states. Word has length 143 [2018-07-23 13:54:28,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:28,936 INFO L225 Difference]: With dead ends: 147 [2018-07-23 13:54:28,936 INFO L226 Difference]: Without dead ends: 145 [2018-07-23 13:54:28,937 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=10153, Invalid=10153, Unknown=0, NotChecked=0, Total=20306 [2018-07-23 13:54:28,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2018-07-23 13:54:28,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2018-07-23 13:54:28,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2018-07-23 13:54:28,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 145 transitions. [2018-07-23 13:54:28,942 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 145 transitions. Word has length 143 [2018-07-23 13:54:28,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:28,942 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 145 transitions. [2018-07-23 13:54:28,942 INFO L472 AbstractCegarLoop]: Interpolant automaton has 143 states. [2018-07-23 13:54:28,942 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 145 transitions. [2018-07-23 13:54:28,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2018-07-23 13:54:28,943 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:28,943 INFO L357 BasicCegarLoop]: trace histogram [141, 1, 1, 1] [2018-07-23 13:54:28,943 INFO L414 AbstractCegarLoop]: === Iteration 142 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:28,943 INFO L82 PathProgramCache]: Analyzing trace with hash 112048902, now seen corresponding path program 141 times [2018-07-23 13:54:28,943 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:29,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:31,172 INFO L134 CoverageAnalysis]: Checked inductivity of 10011 backedges. 0 proven. 10011 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:31,172 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:31,172 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [143] total 143 [2018-07-23 13:54:31,173 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:31,173 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 13:54:31,173 INFO L185 omatonBuilderFactory]: Interpolants [53248#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 53249#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 53250#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 53251#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 53252#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 53253#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 53254#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 53255#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 53256#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 53257#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 53258#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 53259#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 53260#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 53261#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 53262#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 53263#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 53264#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 53265#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 53266#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 53267#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 53268#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 53269#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 53270#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 53271#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 53272#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 53273#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 53274#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 53275#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 53276#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 53277#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 53278#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 53279#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 53280#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 53281#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 53282#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 53283#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 53284#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 53285#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 53286#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 53287#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 53288#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 53289#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 53290#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 53291#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 53292#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 53293#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 53294#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 53295#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 53296#(and (<= (select main_a main_x) 116) (not (= main_x main_y))), 53297#(and (not (= main_x main_y)) (<= (select main_a main_x) 117)), 53298#(and (not (= main_x main_y)) (<= (select main_a main_x) 118)), 53299#(and (not (= main_x main_y)) (<= (select main_a main_x) 119)), 53300#(and (<= (select main_a main_x) 120) (not (= main_x main_y))), 53301#(and (not (= main_x main_y)) (<= (select main_a main_x) 121)), 53302#(and (not (= main_x main_y)) (<= (select main_a main_x) 122)), 53303#(and (not (= main_x main_y)) (<= (select main_a main_x) 123)), 53304#(and (not (= main_x main_y)) (<= (select main_a main_x) 124)), 53305#(and (not (= main_x main_y)) (<= (select main_a main_x) 125)), 53306#(and (not (= main_x main_y)) (<= (select main_a main_x) 126)), 53307#(and (<= (select main_a main_x) 127) (not (= main_x main_y))), 53308#(and (not (= main_x main_y)) (<= (select main_a main_x) 128)), 53309#(and (not (= main_x main_y)) (<= (select main_a main_x) 129)), 53310#(and (not (= main_x main_y)) (<= (select main_a main_x) 130)), 53311#(and (<= (select main_a main_x) 131) (not (= main_x main_y))), 53312#(and (<= (select main_a main_x) 132) (not (= main_x main_y))), 53313#(and (not (= main_x main_y)) (<= (select main_a main_x) 133)), 53314#(and (not (= main_x main_y)) (<= (select main_a main_x) 134)), 53315#(and (not (= main_x main_y)) (<= (select main_a main_x) 135)), 53316#(and (<= (select main_a main_x) 136) (not (= main_x main_y))), 53317#(and (<= (select main_a main_x) 137) (not (= main_x main_y))), 53318#(and (not (= main_x main_y)) (<= (select main_a main_x) 138)), 53319#(and (not (= main_x main_y)) (<= (select main_a main_x) 139)), 53320#(and (not (= main_x main_y)) (<= (select main_a main_x) 140)), 53321#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 53178#true, 53179#false, 53180#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 53181#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 53182#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 53183#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 53184#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 53185#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 53186#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 53187#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 53188#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 53189#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 53190#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 53191#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 53192#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 53193#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 53194#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 53195#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 53196#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 53197#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 53198#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 53199#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 53200#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 53201#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 53202#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 53203#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 53204#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 53205#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 53206#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 53207#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 53208#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 53209#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 53210#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 53211#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 53212#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 53213#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 53214#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 53215#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 53216#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 53217#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 53218#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 53219#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 53220#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 53221#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 53222#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 53223#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 53224#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 53225#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 53226#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 53227#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 53228#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 53229#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 53230#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 53231#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 53232#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 53233#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 53234#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 53235#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 53236#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 53237#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 53238#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 53239#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 53240#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 53241#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 53242#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 53243#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 53244#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 53245#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 53246#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 53247#(and (<= (select main_a main_x) 67) (not (= main_x main_y)))] [2018-07-23 13:54:31,174 INFO L134 CoverageAnalysis]: Checked inductivity of 10011 backedges. 0 proven. 10011 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:31,174 INFO L450 AbstractCegarLoop]: Interpolant automaton has 144 states [2018-07-23 13:54:31,175 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 144 interpolants. [2018-07-23 13:54:31,175 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10296, Invalid=10296, Unknown=0, NotChecked=0, Total=20592 [2018-07-23 13:54:31,176 INFO L87 Difference]: Start difference. First operand 145 states and 145 transitions. Second operand 144 states. [2018-07-23 13:54:31,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:31,298 INFO L93 Difference]: Finished difference Result 148 states and 148 transitions. [2018-07-23 13:54:31,298 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2018-07-23 13:54:31,298 INFO L78 Accepts]: Start accepts. Automaton has 144 states. Word has length 144 [2018-07-23 13:54:31,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:31,299 INFO L225 Difference]: With dead ends: 148 [2018-07-23 13:54:31,299 INFO L226 Difference]: Without dead ends: 146 [2018-07-23 13:54:31,299 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=10296, Invalid=10296, Unknown=0, NotChecked=0, Total=20592 [2018-07-23 13:54:31,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2018-07-23 13:54:31,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2018-07-23 13:54:31,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2018-07-23 13:54:31,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 146 transitions. [2018-07-23 13:54:31,304 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 146 transitions. Word has length 144 [2018-07-23 13:54:31,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:31,304 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 146 transitions. [2018-07-23 13:54:31,304 INFO L472 AbstractCegarLoop]: Interpolant automaton has 144 states. [2018-07-23 13:54:31,304 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 146 transitions. [2018-07-23 13:54:31,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-07-23 13:54:31,305 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:31,305 INFO L357 BasicCegarLoop]: trace histogram [142, 1, 1, 1] [2018-07-23 13:54:31,305 INFO L414 AbstractCegarLoop]: === Iteration 143 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:31,305 INFO L82 PathProgramCache]: Analyzing trace with hash -821455200, now seen corresponding path program 142 times [2018-07-23 13:54:31,305 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:31,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:33,402 INFO L134 CoverageAnalysis]: Checked inductivity of 10153 backedges. 0 proven. 10153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:33,402 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:33,403 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [144] total 144 [2018-07-23 13:54:33,403 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:33,403 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 13:54:33,403 INFO L185 omatonBuilderFactory]: Interpolants [54016#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 54017#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 54018#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 54019#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 54020#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 54021#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 54022#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 54023#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 54024#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 54025#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 54026#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 54027#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 54028#(and (<= (select main_a main_x) 116) (not (= main_x main_y))), 54029#(and (not (= main_x main_y)) (<= (select main_a main_x) 117)), 54030#(and (not (= main_x main_y)) (<= (select main_a main_x) 118)), 54031#(and (not (= main_x main_y)) (<= (select main_a main_x) 119)), 54032#(and (<= (select main_a main_x) 120) (not (= main_x main_y))), 54033#(and (not (= main_x main_y)) (<= (select main_a main_x) 121)), 54034#(and (not (= main_x main_y)) (<= (select main_a main_x) 122)), 54035#(and (not (= main_x main_y)) (<= (select main_a main_x) 123)), 54036#(and (not (= main_x main_y)) (<= (select main_a main_x) 124)), 54037#(and (not (= main_x main_y)) (<= (select main_a main_x) 125)), 54038#(and (not (= main_x main_y)) (<= (select main_a main_x) 126)), 54039#(and (<= (select main_a main_x) 127) (not (= main_x main_y))), 54040#(and (not (= main_x main_y)) (<= (select main_a main_x) 128)), 54041#(and (not (= main_x main_y)) (<= (select main_a main_x) 129)), 54042#(and (not (= main_x main_y)) (<= (select main_a main_x) 130)), 54043#(and (<= (select main_a main_x) 131) (not (= main_x main_y))), 54044#(and (<= (select main_a main_x) 132) (not (= main_x main_y))), 54045#(and (not (= main_x main_y)) (<= (select main_a main_x) 133)), 54046#(and (not (= main_x main_y)) (<= (select main_a main_x) 134)), 54047#(and (not (= main_x main_y)) (<= (select main_a main_x) 135)), 54048#(and (<= (select main_a main_x) 136) (not (= main_x main_y))), 54049#(and (<= (select main_a main_x) 137) (not (= main_x main_y))), 54050#(and (not (= main_x main_y)) (<= (select main_a main_x) 138)), 54051#(and (not (= main_x main_y)) (<= (select main_a main_x) 139)), 54052#(and (not (= main_x main_y)) (<= (select main_a main_x) 140)), 54053#(and (<= (select main_a main_x) 141) (not (= main_x main_y))), 54054#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 53910#true, 53911#false, 53912#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 53913#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 53914#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 53915#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 53916#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 53917#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 53918#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 53919#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 53920#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 53921#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 53922#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 53923#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 53924#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 53925#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 53926#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 53927#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 53928#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 53929#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 53930#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 53931#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 53932#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 53933#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 53934#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 53935#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 53936#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 53937#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 53938#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 53939#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 53940#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 53941#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 53942#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 53943#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 53944#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 53945#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 53946#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 53947#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 53948#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 53949#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 53950#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 53951#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 53952#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 53953#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 53954#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 53955#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 53956#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 53957#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 53958#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 53959#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 53960#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 53961#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 53962#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 53963#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 53964#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 53965#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 53966#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 53967#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 53968#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 53969#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 53970#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 53971#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 53972#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 53973#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 53974#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 53975#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 53976#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 53977#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 53978#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 53979#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 53980#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 53981#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 53982#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 53983#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 53984#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 53985#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 53986#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 53987#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 53988#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 53989#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 53990#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 53991#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 53992#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 53993#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 53994#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 53995#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 53996#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 53997#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 53998#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 53999#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 54000#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 54001#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 54002#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 54003#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 54004#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 54005#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 54006#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 54007#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 54008#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 54009#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 54010#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 54011#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 54012#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 54013#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 54014#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 54015#(and (<= (select main_a main_x) 103) (not (= main_x main_y)))] [2018-07-23 13:54:33,404 INFO L134 CoverageAnalysis]: Checked inductivity of 10153 backedges. 0 proven. 10153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:33,404 INFO L450 AbstractCegarLoop]: Interpolant automaton has 145 states [2018-07-23 13:54:33,406 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 145 interpolants. [2018-07-23 13:54:33,406 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10440, Invalid=10440, Unknown=0, NotChecked=0, Total=20880 [2018-07-23 13:54:33,406 INFO L87 Difference]: Start difference. First operand 146 states and 146 transitions. Second operand 145 states. [2018-07-23 13:54:33,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:33,541 INFO L93 Difference]: Finished difference Result 149 states and 149 transitions. [2018-07-23 13:54:33,541 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2018-07-23 13:54:33,541 INFO L78 Accepts]: Start accepts. Automaton has 145 states. Word has length 145 [2018-07-23 13:54:33,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:33,541 INFO L225 Difference]: With dead ends: 149 [2018-07-23 13:54:33,541 INFO L226 Difference]: Without dead ends: 147 [2018-07-23 13:54:33,543 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=10440, Invalid=10440, Unknown=0, NotChecked=0, Total=20880 [2018-07-23 13:54:33,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2018-07-23 13:54:33,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2018-07-23 13:54:33,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2018-07-23 13:54:33,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 147 transitions. [2018-07-23 13:54:33,547 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 147 transitions. Word has length 145 [2018-07-23 13:54:33,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:33,548 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 147 transitions. [2018-07-23 13:54:33,548 INFO L472 AbstractCegarLoop]: Interpolant automaton has 145 states. [2018-07-23 13:54:33,548 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 147 transitions. [2018-07-23 13:54:33,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-07-23 13:54:33,548 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:33,548 INFO L357 BasicCegarLoop]: trace histogram [143, 1, 1, 1] [2018-07-23 13:54:33,548 INFO L414 AbstractCegarLoop]: === Iteration 144 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:33,548 INFO L82 PathProgramCache]: Analyzing trace with hash 304688710, now seen corresponding path program 143 times [2018-07-23 13:54:33,548 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:33,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:35,676 INFO L134 CoverageAnalysis]: Checked inductivity of 10296 backedges. 0 proven. 10296 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:35,676 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:35,676 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [145] total 145 [2018-07-23 13:54:35,676 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:35,676 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 13:54:35,677 INFO L185 omatonBuilderFactory]: Interpolants [54784#(and (not (= main_x main_y)) (<= (select main_a main_x) 135)), 54785#(and (<= (select main_a main_x) 136) (not (= main_x main_y))), 54786#(and (<= (select main_a main_x) 137) (not (= main_x main_y))), 54787#(and (not (= main_x main_y)) (<= (select main_a main_x) 138)), 54788#(and (not (= main_x main_y)) (<= (select main_a main_x) 139)), 54789#(and (not (= main_x main_y)) (<= (select main_a main_x) 140)), 54790#(and (<= (select main_a main_x) 141) (not (= main_x main_y))), 54791#(and (not (= main_x main_y)) (<= (select main_a main_x) 142)), 54792#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 54647#true, 54648#false, 54649#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 54650#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 54651#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 54652#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 54653#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 54654#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 54655#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 54656#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 54657#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 54658#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 54659#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 54660#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 54661#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 54662#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 54663#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 54664#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 54665#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 54666#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 54667#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 54668#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 54669#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 54670#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 54671#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 54672#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 54673#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 54674#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 54675#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 54676#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 54677#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 54678#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 54679#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 54680#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 54681#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 54682#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 54683#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 54684#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 54685#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 54686#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 54687#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 54688#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 54689#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 54690#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 54691#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 54692#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 54693#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 54694#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 54695#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 54696#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 54697#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 54698#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 54699#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 54700#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 54701#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 54702#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 54703#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 54704#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 54705#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 54706#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 54707#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 54708#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 54709#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 54710#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 54711#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 54712#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 54713#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 54714#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 54715#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 54716#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 54717#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 54718#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 54719#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 54720#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 54721#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 54722#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 54723#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 54724#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 54725#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 54726#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 54727#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 54728#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 54729#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 54730#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 54731#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 54732#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 54733#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 54734#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 54735#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 54736#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 54737#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 54738#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 54739#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 54740#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 54741#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 54742#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 54743#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 54744#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 54745#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 54746#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 54747#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 54748#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 54749#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 54750#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 54751#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 54752#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 54753#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 54754#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 54755#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 54756#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 54757#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 54758#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 54759#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 54760#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 54761#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 54762#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 54763#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 54764#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 54765#(and (<= (select main_a main_x) 116) (not (= main_x main_y))), 54766#(and (not (= main_x main_y)) (<= (select main_a main_x) 117)), 54767#(and (not (= main_x main_y)) (<= (select main_a main_x) 118)), 54768#(and (not (= main_x main_y)) (<= (select main_a main_x) 119)), 54769#(and (<= (select main_a main_x) 120) (not (= main_x main_y))), 54770#(and (not (= main_x main_y)) (<= (select main_a main_x) 121)), 54771#(and (not (= main_x main_y)) (<= (select main_a main_x) 122)), 54772#(and (not (= main_x main_y)) (<= (select main_a main_x) 123)), 54773#(and (not (= main_x main_y)) (<= (select main_a main_x) 124)), 54774#(and (not (= main_x main_y)) (<= (select main_a main_x) 125)), 54775#(and (not (= main_x main_y)) (<= (select main_a main_x) 126)), 54776#(and (<= (select main_a main_x) 127) (not (= main_x main_y))), 54777#(and (not (= main_x main_y)) (<= (select main_a main_x) 128)), 54778#(and (not (= main_x main_y)) (<= (select main_a main_x) 129)), 54779#(and (not (= main_x main_y)) (<= (select main_a main_x) 130)), 54780#(and (<= (select main_a main_x) 131) (not (= main_x main_y))), 54781#(and (<= (select main_a main_x) 132) (not (= main_x main_y))), 54782#(and (not (= main_x main_y)) (<= (select main_a main_x) 133)), 54783#(and (not (= main_x main_y)) (<= (select main_a main_x) 134))] [2018-07-23 13:54:35,677 INFO L134 CoverageAnalysis]: Checked inductivity of 10296 backedges. 0 proven. 10296 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:35,677 INFO L450 AbstractCegarLoop]: Interpolant automaton has 146 states [2018-07-23 13:54:35,679 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 146 interpolants. [2018-07-23 13:54:35,679 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10585, Invalid=10585, Unknown=0, NotChecked=0, Total=21170 [2018-07-23 13:54:35,679 INFO L87 Difference]: Start difference. First operand 147 states and 147 transitions. Second operand 146 states. [2018-07-23 13:54:35,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:35,918 INFO L93 Difference]: Finished difference Result 150 states and 150 transitions. [2018-07-23 13:54:35,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 146 states. [2018-07-23 13:54:35,918 INFO L78 Accepts]: Start accepts. Automaton has 146 states. Word has length 146 [2018-07-23 13:54:35,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:35,919 INFO L225 Difference]: With dead ends: 150 [2018-07-23 13:54:35,919 INFO L226 Difference]: Without dead ends: 148 [2018-07-23 13:54:35,920 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 144 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=10585, Invalid=10585, Unknown=0, NotChecked=0, Total=21170 [2018-07-23 13:54:35,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-07-23 13:54:35,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2018-07-23 13:54:35,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2018-07-23 13:54:35,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 148 transitions. [2018-07-23 13:54:35,925 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 148 transitions. Word has length 146 [2018-07-23 13:54:35,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:35,925 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 148 transitions. [2018-07-23 13:54:35,925 INFO L472 AbstractCegarLoop]: Interpolant automaton has 146 states. [2018-07-23 13:54:35,925 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 148 transitions. [2018-07-23 13:54:35,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-07-23 13:54:35,925 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:35,925 INFO L357 BasicCegarLoop]: trace histogram [144, 1, 1, 1] [2018-07-23 13:54:35,925 INFO L414 AbstractCegarLoop]: === Iteration 145 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:35,926 INFO L82 PathProgramCache]: Analyzing trace with hash 855411552, now seen corresponding path program 144 times [2018-07-23 13:54:35,926 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:36,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:38,148 INFO L134 CoverageAnalysis]: Checked inductivity of 10440 backedges. 0 proven. 10440 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:38,149 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:38,149 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [146] total 146 [2018-07-23 13:54:38,149 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:38,149 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 13:54:38,150 INFO L185 omatonBuilderFactory]: Interpolants [55389#true, 55390#false, 55391#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 55392#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 55393#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 55394#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 55395#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 55396#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 55397#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 55398#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 55399#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 55400#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 55401#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 55402#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 55403#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 55404#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 55405#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 55406#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 55407#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 55408#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 55409#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 55410#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 55411#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 55412#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 55413#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 55414#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 55415#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 55416#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 55417#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 55418#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 55419#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 55420#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 55421#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 55422#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 55423#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 55424#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 55425#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 55426#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 55427#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 55428#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 55429#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 55430#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 55431#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 55432#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 55433#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 55434#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 55435#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 55436#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 55437#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 55438#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 55439#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 55440#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 55441#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 55442#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 55443#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 55444#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 55445#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 55446#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 55447#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 55448#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 55449#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 55450#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 55451#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 55452#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 55453#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 55454#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 55455#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 55456#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 55457#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 55458#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 55459#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 55460#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 55461#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 55462#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 55463#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 55464#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 55465#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 55466#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 55467#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 55468#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 55469#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 55470#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 55471#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 55472#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 55473#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 55474#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 55475#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 55476#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 55477#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 55478#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 55479#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 55480#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 55481#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 55482#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 55483#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 55484#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 55485#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 55486#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 55487#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 55488#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 55489#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 55490#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 55491#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 55492#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 55493#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 55494#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 55495#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 55496#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 55497#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 55498#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 55499#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 55500#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 55501#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 55502#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 55503#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 55504#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 55505#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 55506#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 55507#(and (<= (select main_a main_x) 116) (not (= main_x main_y))), 55508#(and (not (= main_x main_y)) (<= (select main_a main_x) 117)), 55509#(and (not (= main_x main_y)) (<= (select main_a main_x) 118)), 55510#(and (not (= main_x main_y)) (<= (select main_a main_x) 119)), 55511#(and (<= (select main_a main_x) 120) (not (= main_x main_y))), 55512#(and (not (= main_x main_y)) (<= (select main_a main_x) 121)), 55513#(and (not (= main_x main_y)) (<= (select main_a main_x) 122)), 55514#(and (not (= main_x main_y)) (<= (select main_a main_x) 123)), 55515#(and (not (= main_x main_y)) (<= (select main_a main_x) 124)), 55516#(and (not (= main_x main_y)) (<= (select main_a main_x) 125)), 55517#(and (not (= main_x main_y)) (<= (select main_a main_x) 126)), 55518#(and (<= (select main_a main_x) 127) (not (= main_x main_y))), 55519#(and (not (= main_x main_y)) (<= (select main_a main_x) 128)), 55520#(and (not (= main_x main_y)) (<= (select main_a main_x) 129)), 55521#(and (not (= main_x main_y)) (<= (select main_a main_x) 130)), 55522#(and (<= (select main_a main_x) 131) (not (= main_x main_y))), 55523#(and (<= (select main_a main_x) 132) (not (= main_x main_y))), 55524#(and (not (= main_x main_y)) (<= (select main_a main_x) 133)), 55525#(and (not (= main_x main_y)) (<= (select main_a main_x) 134)), 55526#(and (not (= main_x main_y)) (<= (select main_a main_x) 135)), 55527#(and (<= (select main_a main_x) 136) (not (= main_x main_y))), 55528#(and (<= (select main_a main_x) 137) (not (= main_x main_y))), 55529#(and (not (= main_x main_y)) (<= (select main_a main_x) 138)), 55530#(and (not (= main_x main_y)) (<= (select main_a main_x) 139)), 55531#(and (not (= main_x main_y)) (<= (select main_a main_x) 140)), 55532#(and (<= (select main_a main_x) 141) (not (= main_x main_y))), 55533#(and (not (= main_x main_y)) (<= (select main_a main_x) 142)), 55534#(and (not (= main_x main_y)) (<= (select main_a main_x) 143)), 55535#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:54:38,150 INFO L134 CoverageAnalysis]: Checked inductivity of 10440 backedges. 0 proven. 10440 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:38,150 INFO L450 AbstractCegarLoop]: Interpolant automaton has 147 states [2018-07-23 13:54:38,152 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 147 interpolants. [2018-07-23 13:54:38,153 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10731, Invalid=10731, Unknown=0, NotChecked=0, Total=21462 [2018-07-23 13:54:38,153 INFO L87 Difference]: Start difference. First operand 148 states and 148 transitions. Second operand 147 states. [2018-07-23 13:54:38,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:38,438 INFO L93 Difference]: Finished difference Result 151 states and 151 transitions. [2018-07-23 13:54:38,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 147 states. [2018-07-23 13:54:38,438 INFO L78 Accepts]: Start accepts. Automaton has 147 states. Word has length 147 [2018-07-23 13:54:38,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:38,438 INFO L225 Difference]: With dead ends: 151 [2018-07-23 13:54:38,438 INFO L226 Difference]: Without dead ends: 149 [2018-07-23 13:54:38,439 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=10731, Invalid=10731, Unknown=0, NotChecked=0, Total=21462 [2018-07-23 13:54:38,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2018-07-23 13:54:38,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2018-07-23 13:54:38,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2018-07-23 13:54:38,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 149 transitions. [2018-07-23 13:54:38,444 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 149 transitions. Word has length 147 [2018-07-23 13:54:38,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:38,444 INFO L471 AbstractCegarLoop]: Abstraction has 149 states and 149 transitions. [2018-07-23 13:54:38,444 INFO L472 AbstractCegarLoop]: Interpolant automaton has 147 states. [2018-07-23 13:54:38,444 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 149 transitions. [2018-07-23 13:54:38,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2018-07-23 13:54:38,445 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:38,445 INFO L357 BasicCegarLoop]: trace histogram [145, 1, 1, 1] [2018-07-23 13:54:38,445 INFO L414 AbstractCegarLoop]: === Iteration 146 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:38,445 INFO L82 PathProgramCache]: Analyzing trace with hash 747950470, now seen corresponding path program 145 times [2018-07-23 13:54:38,445 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:38,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:40,610 INFO L134 CoverageAnalysis]: Checked inductivity of 10585 backedges. 0 proven. 10585 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:40,610 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:40,610 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [147] total 147 [2018-07-23 13:54:40,610 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:40,611 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 13:54:40,611 INFO L185 omatonBuilderFactory]: Interpolants [56136#true, 56137#false, 56138#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 56139#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 56140#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 56141#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 56142#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 56143#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 56144#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 56145#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 56146#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 56147#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 56148#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 56149#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 56150#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 56151#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 56152#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 56153#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 56154#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 56155#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 56156#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 56157#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 56158#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 56159#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 56160#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 56161#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 56162#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 56163#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 56164#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 56165#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 56166#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 56167#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 56168#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 56169#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 56170#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 56171#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 56172#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 56173#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 56174#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 56175#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 56176#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 56177#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 56178#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 56179#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 56180#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 56181#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 56182#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 56183#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 56184#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 56185#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 56186#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 56187#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 56188#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 56189#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 56190#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 56191#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 56192#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 56193#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 56194#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 56195#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 56196#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 56197#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 56198#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 56199#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 56200#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 56201#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 56202#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 56203#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 56204#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 56205#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 56206#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 56207#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 56208#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 56209#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 56210#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 56211#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 56212#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 56213#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 56214#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 56215#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 56216#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 56217#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 56218#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 56219#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 56220#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 56221#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 56222#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 56223#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 56224#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 56225#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 56226#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 56227#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 56228#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 56229#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 56230#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 56231#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 56232#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 56233#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 56234#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 56235#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 56236#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 56237#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 56238#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 56239#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 56240#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 56241#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 56242#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 56243#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 56244#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 56245#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 56246#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 56247#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 56248#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 56249#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 56250#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 56251#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 56252#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 56253#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 56254#(and (<= (select main_a main_x) 116) (not (= main_x main_y))), 56255#(and (not (= main_x main_y)) (<= (select main_a main_x) 117)), 56256#(and (not (= main_x main_y)) (<= (select main_a main_x) 118)), 56257#(and (not (= main_x main_y)) (<= (select main_a main_x) 119)), 56258#(and (<= (select main_a main_x) 120) (not (= main_x main_y))), 56259#(and (not (= main_x main_y)) (<= (select main_a main_x) 121)), 56260#(and (not (= main_x main_y)) (<= (select main_a main_x) 122)), 56261#(and (not (= main_x main_y)) (<= (select main_a main_x) 123)), 56262#(and (not (= main_x main_y)) (<= (select main_a main_x) 124)), 56263#(and (not (= main_x main_y)) (<= (select main_a main_x) 125)), 56264#(and (not (= main_x main_y)) (<= (select main_a main_x) 126)), 56265#(and (<= (select main_a main_x) 127) (not (= main_x main_y))), 56266#(and (not (= main_x main_y)) (<= (select main_a main_x) 128)), 56267#(and (not (= main_x main_y)) (<= (select main_a main_x) 129)), 56268#(and (not (= main_x main_y)) (<= (select main_a main_x) 130)), 56269#(and (<= (select main_a main_x) 131) (not (= main_x main_y))), 56270#(and (<= (select main_a main_x) 132) (not (= main_x main_y))), 56271#(and (not (= main_x main_y)) (<= (select main_a main_x) 133)), 56272#(and (not (= main_x main_y)) (<= (select main_a main_x) 134)), 56273#(and (not (= main_x main_y)) (<= (select main_a main_x) 135)), 56274#(and (<= (select main_a main_x) 136) (not (= main_x main_y))), 56275#(and (<= (select main_a main_x) 137) (not (= main_x main_y))), 56276#(and (not (= main_x main_y)) (<= (select main_a main_x) 138)), 56277#(and (not (= main_x main_y)) (<= (select main_a main_x) 139)), 56278#(and (not (= main_x main_y)) (<= (select main_a main_x) 140)), 56279#(and (<= (select main_a main_x) 141) (not (= main_x main_y))), 56280#(and (not (= main_x main_y)) (<= (select main_a main_x) 142)), 56281#(and (not (= main_x main_y)) (<= (select main_a main_x) 143)), 56282#(and (<= (select main_a main_x) 144) (not (= main_x main_y))), 56283#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:54:40,612 INFO L134 CoverageAnalysis]: Checked inductivity of 10585 backedges. 0 proven. 10585 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:40,612 INFO L450 AbstractCegarLoop]: Interpolant automaton has 148 states [2018-07-23 13:54:40,613 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 148 interpolants. [2018-07-23 13:54:40,614 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10878, Invalid=10878, Unknown=0, NotChecked=0, Total=21756 [2018-07-23 13:54:40,614 INFO L87 Difference]: Start difference. First operand 149 states and 149 transitions. Second operand 148 states. [2018-07-23 13:54:40,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:40,904 INFO L93 Difference]: Finished difference Result 152 states and 152 transitions. [2018-07-23 13:54:40,904 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 148 states. [2018-07-23 13:54:40,904 INFO L78 Accepts]: Start accepts. Automaton has 148 states. Word has length 148 [2018-07-23 13:54:40,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:40,905 INFO L225 Difference]: With dead ends: 152 [2018-07-23 13:54:40,905 INFO L226 Difference]: Without dead ends: 150 [2018-07-23 13:54:40,906 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=10878, Invalid=10878, Unknown=0, NotChecked=0, Total=21756 [2018-07-23 13:54:40,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2018-07-23 13:54:40,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2018-07-23 13:54:40,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2018-07-23 13:54:40,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 150 transitions. [2018-07-23 13:54:40,911 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 150 transitions. Word has length 148 [2018-07-23 13:54:40,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:40,912 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 150 transitions. [2018-07-23 13:54:40,912 INFO L472 AbstractCegarLoop]: Interpolant automaton has 148 states. [2018-07-23 13:54:40,912 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 150 transitions. [2018-07-23 13:54:40,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-07-23 13:54:40,912 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:40,913 INFO L357 BasicCegarLoop]: trace histogram [146, 1, 1, 1] [2018-07-23 13:54:40,913 INFO L414 AbstractCegarLoop]: === Iteration 147 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:40,913 INFO L82 PathProgramCache]: Analyzing trace with hash 1711624224, now seen corresponding path program 146 times [2018-07-23 13:54:40,913 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:41,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:43,474 INFO L134 CoverageAnalysis]: Checked inductivity of 10731 backedges. 0 proven. 10731 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:43,474 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:43,475 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [148] total 148 [2018-07-23 13:54:43,475 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:43,475 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 13:54:43,475 INFO L185 omatonBuilderFactory]: Interpolants [56888#true, 56889#false, 56890#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 56891#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 56892#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 56893#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 56894#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 56895#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 56896#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 56897#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 56898#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 56899#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 56900#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 56901#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 56902#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 56903#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 56904#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 56905#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 56906#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 56907#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 56908#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 56909#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 56910#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 56911#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 56912#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 56913#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 56914#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 56915#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 56916#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 56917#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 56918#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 56919#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 56920#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 56921#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 56922#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 56923#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 56924#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 56925#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 56926#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 56927#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 56928#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 56929#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 56930#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 56931#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 56932#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 56933#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 56934#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 56935#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 56936#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 56937#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 56938#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 56939#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 56940#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 56941#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 56942#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 56943#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 56944#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 56945#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 56946#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 56947#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 56948#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 56949#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 56950#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 56951#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 56952#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 56953#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 56954#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 56955#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 56956#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 56957#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 56958#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 56959#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 56960#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 56961#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 56962#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 56963#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 56964#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 56965#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 56966#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 56967#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 56968#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 56969#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 56970#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 56971#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 56972#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 56973#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 56974#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 56975#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 56976#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 56977#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 56978#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 56979#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 56980#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 56981#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 56982#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 56983#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 56984#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 56985#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 56986#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 56987#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 56988#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 56989#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 56990#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 56991#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 56992#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 56993#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 56994#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 56995#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 56996#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 56997#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 56998#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 56999#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 57000#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 57001#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 57002#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 57003#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 57004#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 57005#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 57006#(and (<= (select main_a main_x) 116) (not (= main_x main_y))), 57007#(and (not (= main_x main_y)) (<= (select main_a main_x) 117)), 57008#(and (not (= main_x main_y)) (<= (select main_a main_x) 118)), 57009#(and (not (= main_x main_y)) (<= (select main_a main_x) 119)), 57010#(and (<= (select main_a main_x) 120) (not (= main_x main_y))), 57011#(and (not (= main_x main_y)) (<= (select main_a main_x) 121)), 57012#(and (not (= main_x main_y)) (<= (select main_a main_x) 122)), 57013#(and (not (= main_x main_y)) (<= (select main_a main_x) 123)), 57014#(and (not (= main_x main_y)) (<= (select main_a main_x) 124)), 57015#(and (not (= main_x main_y)) (<= (select main_a main_x) 125)), 57016#(and (not (= main_x main_y)) (<= (select main_a main_x) 126)), 57017#(and (<= (select main_a main_x) 127) (not (= main_x main_y))), 57018#(and (not (= main_x main_y)) (<= (select main_a main_x) 128)), 57019#(and (not (= main_x main_y)) (<= (select main_a main_x) 129)), 57020#(and (not (= main_x main_y)) (<= (select main_a main_x) 130)), 57021#(and (<= (select main_a main_x) 131) (not (= main_x main_y))), 57022#(and (<= (select main_a main_x) 132) (not (= main_x main_y))), 57023#(and (not (= main_x main_y)) (<= (select main_a main_x) 133)), 57024#(and (not (= main_x main_y)) (<= (select main_a main_x) 134)), 57025#(and (not (= main_x main_y)) (<= (select main_a main_x) 135)), 57026#(and (<= (select main_a main_x) 136) (not (= main_x main_y))), 57027#(and (<= (select main_a main_x) 137) (not (= main_x main_y))), 57028#(and (not (= main_x main_y)) (<= (select main_a main_x) 138)), 57029#(and (not (= main_x main_y)) (<= (select main_a main_x) 139)), 57030#(and (not (= main_x main_y)) (<= (select main_a main_x) 140)), 57031#(and (<= (select main_a main_x) 141) (not (= main_x main_y))), 57032#(and (not (= main_x main_y)) (<= (select main_a main_x) 142)), 57033#(and (not (= main_x main_y)) (<= (select main_a main_x) 143)), 57034#(and (<= (select main_a main_x) 144) (not (= main_x main_y))), 57035#(and (not (= main_x main_y)) (<= (select main_a main_x) 145)), 57036#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:54:43,476 INFO L134 CoverageAnalysis]: Checked inductivity of 10731 backedges. 0 proven. 10731 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:43,476 INFO L450 AbstractCegarLoop]: Interpolant automaton has 149 states [2018-07-23 13:54:43,477 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 149 interpolants. [2018-07-23 13:54:43,477 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11026, Invalid=11026, Unknown=0, NotChecked=0, Total=22052 [2018-07-23 13:54:43,478 INFO L87 Difference]: Start difference. First operand 150 states and 150 transitions. Second operand 149 states. [2018-07-23 13:54:43,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:43,767 INFO L93 Difference]: Finished difference Result 153 states and 153 transitions. [2018-07-23 13:54:43,767 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 149 states. [2018-07-23 13:54:43,767 INFO L78 Accepts]: Start accepts. Automaton has 149 states. Word has length 149 [2018-07-23 13:54:43,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:43,768 INFO L225 Difference]: With dead ends: 153 [2018-07-23 13:54:43,768 INFO L226 Difference]: Without dead ends: 151 [2018-07-23 13:54:43,768 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=11026, Invalid=11026, Unknown=0, NotChecked=0, Total=22052 [2018-07-23 13:54:43,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2018-07-23 13:54:43,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2018-07-23 13:54:43,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2018-07-23 13:54:43,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 151 transitions. [2018-07-23 13:54:43,777 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 151 transitions. Word has length 149 [2018-07-23 13:54:43,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:43,777 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 151 transitions. [2018-07-23 13:54:43,777 INFO L472 AbstractCegarLoop]: Interpolant automaton has 149 states. [2018-07-23 13:54:43,778 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 151 transitions. [2018-07-23 13:54:43,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2018-07-23 13:54:43,778 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:43,778 INFO L357 BasicCegarLoop]: trace histogram [147, 1, 1, 1] [2018-07-23 13:54:43,778 INFO L414 AbstractCegarLoop]: === Iteration 148 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:43,779 INFO L82 PathProgramCache]: Analyzing trace with hash 1520739526, now seen corresponding path program 147 times [2018-07-23 13:54:43,779 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:43,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:46,275 INFO L134 CoverageAnalysis]: Checked inductivity of 10878 backedges. 0 proven. 10878 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:46,276 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:46,276 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [149] total 149 [2018-07-23 13:54:46,276 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:46,276 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 13:54:46,277 INFO L185 omatonBuilderFactory]: Interpolants [57645#true, 57646#false, 57647#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 57648#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 57649#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 57650#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 57651#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 57652#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 57653#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 57654#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 57655#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 57656#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 57657#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 57658#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 57659#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 57660#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 57661#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 57662#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 57663#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 57664#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 57665#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 57666#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 57667#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 57668#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 57669#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 57670#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 57671#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 57672#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 57673#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 57674#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 57675#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 57676#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 57677#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 57678#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 57679#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 57680#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 57681#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 57682#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 57683#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 57684#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 57685#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 57686#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 57687#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 57688#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 57689#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 57690#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 57691#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 57692#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 57693#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 57694#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 57695#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 57696#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 57697#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 57698#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 57699#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 57700#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 57701#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 57702#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 57703#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 57704#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 57705#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 57706#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 57707#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 57708#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 57709#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 57710#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 57711#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 57712#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 57713#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 57714#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 57715#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 57716#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 57717#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 57718#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 57719#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 57720#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 57721#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 57722#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 57723#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 57724#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 57725#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 57726#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 57727#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 57728#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 57729#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 57730#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 57731#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 57732#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 57733#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 57734#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 57735#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 57736#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 57737#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 57738#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 57739#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 57740#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 57741#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 57742#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 57743#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 57744#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 57745#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 57746#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 57747#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 57748#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 57749#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 57750#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 57751#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 57752#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 57753#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 57754#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 57755#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 57756#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 57757#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 57758#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 57759#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 57760#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 57761#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 57762#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 57763#(and (<= (select main_a main_x) 116) (not (= main_x main_y))), 57764#(and (not (= main_x main_y)) (<= (select main_a main_x) 117)), 57765#(and (not (= main_x main_y)) (<= (select main_a main_x) 118)), 57766#(and (not (= main_x main_y)) (<= (select main_a main_x) 119)), 57767#(and (<= (select main_a main_x) 120) (not (= main_x main_y))), 57768#(and (not (= main_x main_y)) (<= (select main_a main_x) 121)), 57769#(and (not (= main_x main_y)) (<= (select main_a main_x) 122)), 57770#(and (not (= main_x main_y)) (<= (select main_a main_x) 123)), 57771#(and (not (= main_x main_y)) (<= (select main_a main_x) 124)), 57772#(and (not (= main_x main_y)) (<= (select main_a main_x) 125)), 57773#(and (not (= main_x main_y)) (<= (select main_a main_x) 126)), 57774#(and (<= (select main_a main_x) 127) (not (= main_x main_y))), 57775#(and (not (= main_x main_y)) (<= (select main_a main_x) 128)), 57776#(and (not (= main_x main_y)) (<= (select main_a main_x) 129)), 57777#(and (not (= main_x main_y)) (<= (select main_a main_x) 130)), 57778#(and (<= (select main_a main_x) 131) (not (= main_x main_y))), 57779#(and (<= (select main_a main_x) 132) (not (= main_x main_y))), 57780#(and (not (= main_x main_y)) (<= (select main_a main_x) 133)), 57781#(and (not (= main_x main_y)) (<= (select main_a main_x) 134)), 57782#(and (not (= main_x main_y)) (<= (select main_a main_x) 135)), 57783#(and (<= (select main_a main_x) 136) (not (= main_x main_y))), 57784#(and (<= (select main_a main_x) 137) (not (= main_x main_y))), 57785#(and (not (= main_x main_y)) (<= (select main_a main_x) 138)), 57786#(and (not (= main_x main_y)) (<= (select main_a main_x) 139)), 57787#(and (not (= main_x main_y)) (<= (select main_a main_x) 140)), 57788#(and (<= (select main_a main_x) 141) (not (= main_x main_y))), 57789#(and (not (= main_x main_y)) (<= (select main_a main_x) 142)), 57790#(and (not (= main_x main_y)) (<= (select main_a main_x) 143)), 57791#(and (<= (select main_a main_x) 144) (not (= main_x main_y))), 57792#(and (not (= main_x main_y)) (<= (select main_a main_x) 145)), 57793#(and (<= (select main_a main_x) 146) (not (= main_x main_y))), 57794#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:54:46,277 INFO L134 CoverageAnalysis]: Checked inductivity of 10878 backedges. 0 proven. 10878 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:46,278 INFO L450 AbstractCegarLoop]: Interpolant automaton has 150 states [2018-07-23 13:54:46,279 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 150 interpolants. [2018-07-23 13:54:46,280 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11175, Invalid=11175, Unknown=0, NotChecked=0, Total=22350 [2018-07-23 13:54:46,280 INFO L87 Difference]: Start difference. First operand 151 states and 151 transitions. Second operand 150 states. [2018-07-23 13:54:46,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:46,697 INFO L93 Difference]: Finished difference Result 154 states and 154 transitions. [2018-07-23 13:54:46,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 150 states. [2018-07-23 13:54:46,697 INFO L78 Accepts]: Start accepts. Automaton has 150 states. Word has length 150 [2018-07-23 13:54:46,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:46,698 INFO L225 Difference]: With dead ends: 154 [2018-07-23 13:54:46,698 INFO L226 Difference]: Without dead ends: 152 [2018-07-23 13:54:46,699 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=11175, Invalid=11175, Unknown=0, NotChecked=0, Total=22350 [2018-07-23 13:54:46,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2018-07-23 13:54:46,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2018-07-23 13:54:46,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2018-07-23 13:54:46,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 152 transitions. [2018-07-23 13:54:46,705 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 152 transitions. Word has length 150 [2018-07-23 13:54:46,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:46,705 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 152 transitions. [2018-07-23 13:54:46,705 INFO L472 AbstractCegarLoop]: Interpolant automaton has 150 states. [2018-07-23 13:54:46,705 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 152 transitions. [2018-07-23 13:54:46,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-07-23 13:54:46,706 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:46,706 INFO L357 BasicCegarLoop]: trace histogram [148, 1, 1, 1] [2018-07-23 13:54:46,706 INFO L414 AbstractCegarLoop]: === Iteration 149 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:46,706 INFO L82 PathProgramCache]: Analyzing trace with hash -101718816, now seen corresponding path program 148 times [2018-07-23 13:54:46,706 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:46,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:49,330 INFO L134 CoverageAnalysis]: Checked inductivity of 11026 backedges. 0 proven. 11026 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:49,331 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:49,331 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [150] total 150 [2018-07-23 13:54:49,331 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:49,331 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 13:54:49,331 INFO L185 omatonBuilderFactory]: Interpolants [58407#true, 58408#false, 58409#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 58410#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 58411#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 58412#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 58413#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 58414#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 58415#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 58416#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 58417#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 58418#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 58419#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 58420#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 58421#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 58422#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 58423#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 58424#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 58425#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 58426#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 58427#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 58428#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 58429#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 58430#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 58431#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 58432#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 58433#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 58434#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 58435#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 58436#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 58437#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 58438#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 58439#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 58440#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 58441#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 58442#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 58443#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 58444#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 58445#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 58446#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 58447#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 58448#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 58449#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 58450#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 58451#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 58452#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 58453#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 58454#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 58455#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 58456#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 58457#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 58458#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 58459#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 58460#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 58461#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 58462#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 58463#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 58464#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 58465#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 58466#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 58467#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 58468#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 58469#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 58470#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 58471#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 58472#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 58473#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 58474#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 58475#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 58476#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 58477#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 58478#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 58479#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 58480#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 58481#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 58482#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 58483#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 58484#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 58485#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 58486#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 58487#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 58488#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 58489#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 58490#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 58491#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 58492#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 58493#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 58494#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 58495#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 58496#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 58497#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 58498#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 58499#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 58500#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 58501#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 58502#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 58503#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 58504#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 58505#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 58506#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 58507#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 58508#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 58509#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 58510#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 58511#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 58512#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 58513#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 58514#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 58515#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 58516#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 58517#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 58518#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 58519#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 58520#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 58521#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 58522#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 58523#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 58524#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 58525#(and (<= (select main_a main_x) 116) (not (= main_x main_y))), 58526#(and (not (= main_x main_y)) (<= (select main_a main_x) 117)), 58527#(and (not (= main_x main_y)) (<= (select main_a main_x) 118)), 58528#(and (not (= main_x main_y)) (<= (select main_a main_x) 119)), 58529#(and (<= (select main_a main_x) 120) (not (= main_x main_y))), 58530#(and (not (= main_x main_y)) (<= (select main_a main_x) 121)), 58531#(and (not (= main_x main_y)) (<= (select main_a main_x) 122)), 58532#(and (not (= main_x main_y)) (<= (select main_a main_x) 123)), 58533#(and (not (= main_x main_y)) (<= (select main_a main_x) 124)), 58534#(and (not (= main_x main_y)) (<= (select main_a main_x) 125)), 58535#(and (not (= main_x main_y)) (<= (select main_a main_x) 126)), 58536#(and (<= (select main_a main_x) 127) (not (= main_x main_y))), 58537#(and (not (= main_x main_y)) (<= (select main_a main_x) 128)), 58538#(and (not (= main_x main_y)) (<= (select main_a main_x) 129)), 58539#(and (not (= main_x main_y)) (<= (select main_a main_x) 130)), 58540#(and (<= (select main_a main_x) 131) (not (= main_x main_y))), 58541#(and (<= (select main_a main_x) 132) (not (= main_x main_y))), 58542#(and (not (= main_x main_y)) (<= (select main_a main_x) 133)), 58543#(and (not (= main_x main_y)) (<= (select main_a main_x) 134)), 58544#(and (not (= main_x main_y)) (<= (select main_a main_x) 135)), 58545#(and (<= (select main_a main_x) 136) (not (= main_x main_y))), 58546#(and (<= (select main_a main_x) 137) (not (= main_x main_y))), 58547#(and (not (= main_x main_y)) (<= (select main_a main_x) 138)), 58548#(and (not (= main_x main_y)) (<= (select main_a main_x) 139)), 58549#(and (not (= main_x main_y)) (<= (select main_a main_x) 140)), 58550#(and (<= (select main_a main_x) 141) (not (= main_x main_y))), 58551#(and (not (= main_x main_y)) (<= (select main_a main_x) 142)), 58552#(and (not (= main_x main_y)) (<= (select main_a main_x) 143)), 58553#(and (<= (select main_a main_x) 144) (not (= main_x main_y))), 58554#(and (not (= main_x main_y)) (<= (select main_a main_x) 145)), 58555#(and (<= (select main_a main_x) 146) (not (= main_x main_y))), 58556#(and (not (= main_x main_y)) (<= (select main_a main_x) 147)), 58557#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:54:49,332 INFO L134 CoverageAnalysis]: Checked inductivity of 11026 backedges. 0 proven. 11026 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:49,332 INFO L450 AbstractCegarLoop]: Interpolant automaton has 151 states [2018-07-23 13:54:49,334 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 151 interpolants. [2018-07-23 13:54:49,335 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11325, Invalid=11325, Unknown=0, NotChecked=0, Total=22650 [2018-07-23 13:54:49,335 INFO L87 Difference]: Start difference. First operand 152 states and 152 transitions. Second operand 151 states. [2018-07-23 13:54:49,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:49,704 INFO L93 Difference]: Finished difference Result 155 states and 155 transitions. [2018-07-23 13:54:49,704 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 151 states. [2018-07-23 13:54:49,704 INFO L78 Accepts]: Start accepts. Automaton has 151 states. Word has length 151 [2018-07-23 13:54:49,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:49,705 INFO L225 Difference]: With dead ends: 155 [2018-07-23 13:54:49,705 INFO L226 Difference]: Without dead ends: 153 [2018-07-23 13:54:49,706 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=11325, Invalid=11325, Unknown=0, NotChecked=0, Total=22650 [2018-07-23 13:54:49,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2018-07-23 13:54:49,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2018-07-23 13:54:49,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2018-07-23 13:54:49,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 153 transitions. [2018-07-23 13:54:49,712 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 153 transitions. Word has length 151 [2018-07-23 13:54:49,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:49,712 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 153 transitions. [2018-07-23 13:54:49,712 INFO L472 AbstractCegarLoop]: Interpolant automaton has 151 states. [2018-07-23 13:54:49,712 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 153 transitions. [2018-07-23 13:54:49,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-07-23 13:54:49,712 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:49,713 INFO L357 BasicCegarLoop]: trace histogram [149, 1, 1, 1] [2018-07-23 13:54:49,713 INFO L414 AbstractCegarLoop]: === Iteration 150 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:49,713 INFO L82 PathProgramCache]: Analyzing trace with hash 1141680134, now seen corresponding path program 149 times [2018-07-23 13:54:49,713 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:49,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:52,135 INFO L134 CoverageAnalysis]: Checked inductivity of 11175 backedges. 0 proven. 11175 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:52,135 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:52,135 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [151] total 151 [2018-07-23 13:54:52,135 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:52,136 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 13:54:52,136 INFO L185 omatonBuilderFactory]: Interpolants [59174#true, 59175#false, 59176#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 59177#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 59178#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 59179#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 59180#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 59181#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 59182#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 59183#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 59184#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 59185#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 59186#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 59187#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 59188#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 59189#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 59190#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 59191#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 59192#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 59193#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 59194#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 59195#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 59196#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 59197#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 59198#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 59199#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 59200#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 59201#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 59202#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 59203#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 59204#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 59205#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 59206#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 59207#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 59208#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 59209#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 59210#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 59211#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 59212#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 59213#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 59214#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 59215#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 59216#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 59217#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 59218#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 59219#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 59220#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 59221#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 59222#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 59223#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 59224#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 59225#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 59226#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 59227#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 59228#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 59229#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 59230#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 59231#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 59232#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 59233#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 59234#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 59235#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 59236#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 59237#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 59238#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 59239#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 59240#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 59241#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 59242#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 59243#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 59244#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 59245#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 59246#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 59247#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 59248#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 59249#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 59250#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 59251#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 59252#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 59253#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 59254#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 59255#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 59256#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 59257#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 59258#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 59259#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 59260#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 59261#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 59262#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 59263#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 59264#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 59265#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 59266#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 59267#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 59268#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 59269#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 59270#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 59271#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 59272#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 59273#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 59274#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 59275#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 59276#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 59277#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 59278#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 59279#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 59280#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 59281#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 59282#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 59283#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 59284#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 59285#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 59286#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 59287#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 59288#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 59289#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 59290#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 59291#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 59292#(and (<= (select main_a main_x) 116) (not (= main_x main_y))), 59293#(and (not (= main_x main_y)) (<= (select main_a main_x) 117)), 59294#(and (not (= main_x main_y)) (<= (select main_a main_x) 118)), 59295#(and (not (= main_x main_y)) (<= (select main_a main_x) 119)), 59296#(and (<= (select main_a main_x) 120) (not (= main_x main_y))), 59297#(and (not (= main_x main_y)) (<= (select main_a main_x) 121)), 59298#(and (not (= main_x main_y)) (<= (select main_a main_x) 122)), 59299#(and (not (= main_x main_y)) (<= (select main_a main_x) 123)), 59300#(and (not (= main_x main_y)) (<= (select main_a main_x) 124)), 59301#(and (not (= main_x main_y)) (<= (select main_a main_x) 125)), 59302#(and (not (= main_x main_y)) (<= (select main_a main_x) 126)), 59303#(and (<= (select main_a main_x) 127) (not (= main_x main_y))), 59304#(and (not (= main_x main_y)) (<= (select main_a main_x) 128)), 59305#(and (not (= main_x main_y)) (<= (select main_a main_x) 129)), 59306#(and (not (= main_x main_y)) (<= (select main_a main_x) 130)), 59307#(and (<= (select main_a main_x) 131) (not (= main_x main_y))), 59308#(and (<= (select main_a main_x) 132) (not (= main_x main_y))), 59309#(and (not (= main_x main_y)) (<= (select main_a main_x) 133)), 59310#(and (not (= main_x main_y)) (<= (select main_a main_x) 134)), 59311#(and (not (= main_x main_y)) (<= (select main_a main_x) 135)), 59312#(and (<= (select main_a main_x) 136) (not (= main_x main_y))), 59313#(and (<= (select main_a main_x) 137) (not (= main_x main_y))), 59314#(and (not (= main_x main_y)) (<= (select main_a main_x) 138)), 59315#(and (not (= main_x main_y)) (<= (select main_a main_x) 139)), 59316#(and (not (= main_x main_y)) (<= (select main_a main_x) 140)), 59317#(and (<= (select main_a main_x) 141) (not (= main_x main_y))), 59318#(and (not (= main_x main_y)) (<= (select main_a main_x) 142)), 59319#(and (not (= main_x main_y)) (<= (select main_a main_x) 143)), 59320#(and (<= (select main_a main_x) 144) (not (= main_x main_y))), 59321#(and (not (= main_x main_y)) (<= (select main_a main_x) 145)), 59322#(and (<= (select main_a main_x) 146) (not (= main_x main_y))), 59323#(and (not (= main_x main_y)) (<= (select main_a main_x) 147)), 59324#(and (<= (select main_a main_x) 148) (not (= main_x main_y))), 59325#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:54:52,137 INFO L134 CoverageAnalysis]: Checked inductivity of 11175 backedges. 0 proven. 11175 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:52,137 INFO L450 AbstractCegarLoop]: Interpolant automaton has 152 states [2018-07-23 13:54:52,139 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 152 interpolants. [2018-07-23 13:54:52,140 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11476, Invalid=11476, Unknown=0, NotChecked=0, Total=22952 [2018-07-23 13:54:52,140 INFO L87 Difference]: Start difference. First operand 153 states and 153 transitions. Second operand 152 states. [2018-07-23 13:54:52,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:52,500 INFO L93 Difference]: Finished difference Result 156 states and 156 transitions. [2018-07-23 13:54:52,500 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 152 states. [2018-07-23 13:54:52,500 INFO L78 Accepts]: Start accepts. Automaton has 152 states. Word has length 152 [2018-07-23 13:54:52,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:52,501 INFO L225 Difference]: With dead ends: 156 [2018-07-23 13:54:52,501 INFO L226 Difference]: Without dead ends: 154 [2018-07-23 13:54:52,502 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=11476, Invalid=11476, Unknown=0, NotChecked=0, Total=22952 [2018-07-23 13:54:52,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2018-07-23 13:54:52,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2018-07-23 13:54:52,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2018-07-23 13:54:52,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 154 transitions. [2018-07-23 13:54:52,507 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 154 transitions. Word has length 152 [2018-07-23 13:54:52,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:52,507 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 154 transitions. [2018-07-23 13:54:52,507 INFO L472 AbstractCegarLoop]: Interpolant automaton has 152 states. [2018-07-23 13:54:52,507 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 154 transitions. [2018-07-23 13:54:52,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2018-07-23 13:54:52,508 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:52,508 INFO L357 BasicCegarLoop]: trace histogram [150, 1, 1, 1] [2018-07-23 13:54:52,508 INFO L414 AbstractCegarLoop]: === Iteration 151 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:52,508 INFO L82 PathProgramCache]: Analyzing trace with hash 1032341920, now seen corresponding path program 150 times [2018-07-23 13:54:52,508 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:52,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:55,004 INFO L134 CoverageAnalysis]: Checked inductivity of 11325 backedges. 0 proven. 11325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:55,004 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:55,004 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [152] total 152 [2018-07-23 13:54:55,004 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:55,004 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 13:54:55,005 INFO L185 omatonBuilderFactory]: Interpolants [59946#true, 59947#false, 59948#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 59949#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 59950#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 59951#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 59952#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 59953#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 59954#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 59955#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 59956#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 59957#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 59958#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 59959#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 59960#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 59961#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 59962#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 59963#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 59964#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 59965#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 59966#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 59967#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 59968#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 59969#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 59970#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 59971#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 59972#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 59973#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 59974#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 59975#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 59976#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 59977#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 59978#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 59979#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 59980#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 59981#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 59982#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 59983#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 59984#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 59985#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 59986#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 59987#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 59988#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 59989#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 59990#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 59991#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 59992#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 59993#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 59994#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 59995#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 59996#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 59997#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 59998#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 59999#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 60000#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 60001#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 60002#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 60003#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 60004#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 60005#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 60006#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 60007#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 60008#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 60009#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 60010#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 60011#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 60012#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 60013#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 60014#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 60015#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 60016#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 60017#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 60018#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 60019#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 60020#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 60021#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 60022#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 60023#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 60024#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 60025#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 60026#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 60027#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 60028#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 60029#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 60030#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 60031#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 60032#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 60033#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 60034#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 60035#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 60036#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 60037#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 60038#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 60039#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 60040#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 60041#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 60042#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 60043#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 60044#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 60045#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 60046#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 60047#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 60048#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 60049#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 60050#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 60051#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 60052#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 60053#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 60054#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 60055#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 60056#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 60057#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 60058#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 60059#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 60060#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 60061#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 60062#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 60063#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 60064#(and (<= (select main_a main_x) 116) (not (= main_x main_y))), 60065#(and (not (= main_x main_y)) (<= (select main_a main_x) 117)), 60066#(and (not (= main_x main_y)) (<= (select main_a main_x) 118)), 60067#(and (not (= main_x main_y)) (<= (select main_a main_x) 119)), 60068#(and (<= (select main_a main_x) 120) (not (= main_x main_y))), 60069#(and (not (= main_x main_y)) (<= (select main_a main_x) 121)), 60070#(and (not (= main_x main_y)) (<= (select main_a main_x) 122)), 60071#(and (not (= main_x main_y)) (<= (select main_a main_x) 123)), 60072#(and (not (= main_x main_y)) (<= (select main_a main_x) 124)), 60073#(and (not (= main_x main_y)) (<= (select main_a main_x) 125)), 60074#(and (not (= main_x main_y)) (<= (select main_a main_x) 126)), 60075#(and (<= (select main_a main_x) 127) (not (= main_x main_y))), 60076#(and (not (= main_x main_y)) (<= (select main_a main_x) 128)), 60077#(and (not (= main_x main_y)) (<= (select main_a main_x) 129)), 60078#(and (not (= main_x main_y)) (<= (select main_a main_x) 130)), 60079#(and (<= (select main_a main_x) 131) (not (= main_x main_y))), 60080#(and (<= (select main_a main_x) 132) (not (= main_x main_y))), 60081#(and (not (= main_x main_y)) (<= (select main_a main_x) 133)), 60082#(and (not (= main_x main_y)) (<= (select main_a main_x) 134)), 60083#(and (not (= main_x main_y)) (<= (select main_a main_x) 135)), 60084#(and (<= (select main_a main_x) 136) (not (= main_x main_y))), 60085#(and (<= (select main_a main_x) 137) (not (= main_x main_y))), 60086#(and (not (= main_x main_y)) (<= (select main_a main_x) 138)), 60087#(and (not (= main_x main_y)) (<= (select main_a main_x) 139)), 60088#(and (not (= main_x main_y)) (<= (select main_a main_x) 140)), 60089#(and (<= (select main_a main_x) 141) (not (= main_x main_y))), 60090#(and (not (= main_x main_y)) (<= (select main_a main_x) 142)), 60091#(and (not (= main_x main_y)) (<= (select main_a main_x) 143)), 60092#(and (<= (select main_a main_x) 144) (not (= main_x main_y))), 60093#(and (not (= main_x main_y)) (<= (select main_a main_x) 145)), 60094#(and (<= (select main_a main_x) 146) (not (= main_x main_y))), 60095#(and (not (= main_x main_y)) (<= (select main_a main_x) 147)), 60096#(and (<= (select main_a main_x) 148) (not (= main_x main_y))), 60097#(and (not (= main_x main_y)) (<= (select main_a main_x) 149)), 60098#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:54:55,006 INFO L134 CoverageAnalysis]: Checked inductivity of 11325 backedges. 0 proven. 11325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:55,006 INFO L450 AbstractCegarLoop]: Interpolant automaton has 153 states [2018-07-23 13:54:55,008 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 153 interpolants. [2018-07-23 13:54:55,009 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11628, Invalid=11628, Unknown=0, NotChecked=0, Total=23256 [2018-07-23 13:54:55,009 INFO L87 Difference]: Start difference. First operand 154 states and 154 transitions. Second operand 153 states. [2018-07-23 13:54:55,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:55,361 INFO L93 Difference]: Finished difference Result 157 states and 157 transitions. [2018-07-23 13:54:55,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2018-07-23 13:54:55,361 INFO L78 Accepts]: Start accepts. Automaton has 153 states. Word has length 153 [2018-07-23 13:54:55,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:55,362 INFO L225 Difference]: With dead ends: 157 [2018-07-23 13:54:55,362 INFO L226 Difference]: Without dead ends: 155 [2018-07-23 13:54:55,363 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 151 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=11628, Invalid=11628, Unknown=0, NotChecked=0, Total=23256 [2018-07-23 13:54:55,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2018-07-23 13:54:55,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2018-07-23 13:54:55,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2018-07-23 13:54:55,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 155 transitions. [2018-07-23 13:54:55,368 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 155 transitions. Word has length 153 [2018-07-23 13:54:55,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:55,368 INFO L471 AbstractCegarLoop]: Abstraction has 155 states and 155 transitions. [2018-07-23 13:54:55,368 INFO L472 AbstractCegarLoop]: Interpolant automaton has 153 states. [2018-07-23 13:54:55,368 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 155 transitions. [2018-07-23 13:54:55,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2018-07-23 13:54:55,369 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:55,369 INFO L357 BasicCegarLoop]: trace histogram [151, 1, 1, 1] [2018-07-23 13:54:55,369 INFO L414 AbstractCegarLoop]: === Iteration 152 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:55,369 INFO L82 PathProgramCache]: Analyzing trace with hash 1937824582, now seen corresponding path program 151 times [2018-07-23 13:54:55,369 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:55,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:57,925 INFO L134 CoverageAnalysis]: Checked inductivity of 11476 backedges. 0 proven. 11476 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:57,925 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:57,925 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [153] total 153 [2018-07-23 13:54:57,925 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:57,925 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 13:54:57,926 INFO L185 omatonBuilderFactory]: Interpolants [60723#true, 60724#false, 60725#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 60726#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 60727#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 60728#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 60729#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 60730#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 60731#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 60732#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 60733#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 60734#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 60735#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 60736#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 60737#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 60738#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 60739#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 60740#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 60741#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 60742#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 60743#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 60744#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 60745#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 60746#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 60747#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 60748#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 60749#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 60750#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 60751#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 60752#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 60753#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 60754#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 60755#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 60756#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 60757#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 60758#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 60759#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 60760#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 60761#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 60762#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 60763#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 60764#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 60765#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 60766#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 60767#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 60768#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 60769#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 60770#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 60771#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 60772#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 60773#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 60774#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 60775#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 60776#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 60777#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 60778#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 60779#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 60780#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 60781#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 60782#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 60783#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 60784#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 60785#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 60786#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 60787#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 60788#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 60789#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 60790#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 60791#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 60792#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 60793#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 60794#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 60795#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 60796#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 60797#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 60798#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 60799#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 60800#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 60801#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 60802#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 60803#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 60804#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 60805#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 60806#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 60807#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 60808#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 60809#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 60810#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 60811#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 60812#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 60813#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 60814#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 60815#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 60816#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 60817#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 60818#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 60819#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 60820#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 60821#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 60822#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 60823#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 60824#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 60825#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 60826#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 60827#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 60828#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 60829#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 60830#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 60831#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 60832#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 60833#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 60834#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 60835#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 60836#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 60837#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 60838#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 60839#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 60840#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 60841#(and (<= (select main_a main_x) 116) (not (= main_x main_y))), 60842#(and (not (= main_x main_y)) (<= (select main_a main_x) 117)), 60843#(and (not (= main_x main_y)) (<= (select main_a main_x) 118)), 60844#(and (not (= main_x main_y)) (<= (select main_a main_x) 119)), 60845#(and (<= (select main_a main_x) 120) (not (= main_x main_y))), 60846#(and (not (= main_x main_y)) (<= (select main_a main_x) 121)), 60847#(and (not (= main_x main_y)) (<= (select main_a main_x) 122)), 60848#(and (not (= main_x main_y)) (<= (select main_a main_x) 123)), 60849#(and (not (= main_x main_y)) (<= (select main_a main_x) 124)), 60850#(and (not (= main_x main_y)) (<= (select main_a main_x) 125)), 60851#(and (not (= main_x main_y)) (<= (select main_a main_x) 126)), 60852#(and (<= (select main_a main_x) 127) (not (= main_x main_y))), 60853#(and (not (= main_x main_y)) (<= (select main_a main_x) 128)), 60854#(and (not (= main_x main_y)) (<= (select main_a main_x) 129)), 60855#(and (not (= main_x main_y)) (<= (select main_a main_x) 130)), 60856#(and (<= (select main_a main_x) 131) (not (= main_x main_y))), 60857#(and (<= (select main_a main_x) 132) (not (= main_x main_y))), 60858#(and (not (= main_x main_y)) (<= (select main_a main_x) 133)), 60859#(and (not (= main_x main_y)) (<= (select main_a main_x) 134)), 60860#(and (not (= main_x main_y)) (<= (select main_a main_x) 135)), 60861#(and (<= (select main_a main_x) 136) (not (= main_x main_y))), 60862#(and (<= (select main_a main_x) 137) (not (= main_x main_y))), 60863#(and (not (= main_x main_y)) (<= (select main_a main_x) 138)), 60864#(and (not (= main_x main_y)) (<= (select main_a main_x) 139)), 60865#(and (not (= main_x main_y)) (<= (select main_a main_x) 140)), 60866#(and (<= (select main_a main_x) 141) (not (= main_x main_y))), 60867#(and (not (= main_x main_y)) (<= (select main_a main_x) 142)), 60868#(and (not (= main_x main_y)) (<= (select main_a main_x) 143)), 60869#(and (<= (select main_a main_x) 144) (not (= main_x main_y))), 60870#(and (not (= main_x main_y)) (<= (select main_a main_x) 145)), 60871#(and (<= (select main_a main_x) 146) (not (= main_x main_y))), 60872#(and (not (= main_x main_y)) (<= (select main_a main_x) 147)), 60873#(and (<= (select main_a main_x) 148) (not (= main_x main_y))), 60874#(and (not (= main_x main_y)) (<= (select main_a main_x) 149)), 60875#(and (not (= main_x main_y)) (<= (select main_a main_x) 150)), 60876#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:54:57,926 INFO L134 CoverageAnalysis]: Checked inductivity of 11476 backedges. 0 proven. 11476 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:57,926 INFO L450 AbstractCegarLoop]: Interpolant automaton has 154 states [2018-07-23 13:54:57,928 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 154 interpolants. [2018-07-23 13:54:57,928 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11781, Invalid=11781, Unknown=0, NotChecked=0, Total=23562 [2018-07-23 13:54:57,928 INFO L87 Difference]: Start difference. First operand 155 states and 155 transitions. Second operand 154 states. [2018-07-23 13:54:58,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:58,286 INFO L93 Difference]: Finished difference Result 158 states and 158 transitions. [2018-07-23 13:54:58,286 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 154 states. [2018-07-23 13:54:58,286 INFO L78 Accepts]: Start accepts. Automaton has 154 states. Word has length 154 [2018-07-23 13:54:58,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:58,287 INFO L225 Difference]: With dead ends: 158 [2018-07-23 13:54:58,287 INFO L226 Difference]: Without dead ends: 156 [2018-07-23 13:54:58,287 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=11781, Invalid=11781, Unknown=0, NotChecked=0, Total=23562 [2018-07-23 13:54:58,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2018-07-23 13:54:58,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2018-07-23 13:54:58,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2018-07-23 13:54:58,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 156 transitions. [2018-07-23 13:54:58,292 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 156 transitions. Word has length 154 [2018-07-23 13:54:58,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:58,293 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 156 transitions. [2018-07-23 13:54:58,293 INFO L472 AbstractCegarLoop]: Interpolant automaton has 154 states. [2018-07-23 13:54:58,293 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 156 transitions. [2018-07-23 13:54:58,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-07-23 13:54:58,293 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:58,293 INFO L357 BasicCegarLoop]: trace histogram [152, 1, 1, 1] [2018-07-23 13:54:58,293 INFO L414 AbstractCegarLoop]: === Iteration 153 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:58,294 INFO L82 PathProgramCache]: Analyzing trace with hash -56983968, now seen corresponding path program 152 times [2018-07-23 13:54:58,294 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:58,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:00,730 INFO L134 CoverageAnalysis]: Checked inductivity of 11628 backedges. 0 proven. 11628 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:00,731 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:00,731 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [154] total 154 [2018-07-23 13:55:00,731 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:00,731 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 13:55:00,731 INFO L185 omatonBuilderFactory]: Interpolants [61505#true, 61506#false, 61507#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 61508#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 61509#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 61510#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 61511#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 61512#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 61513#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 61514#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 61515#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 61516#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 61517#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 61518#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 61519#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 61520#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 61521#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 61522#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 61523#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 61524#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 61525#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 61526#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 61527#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 61528#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 61529#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 61530#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 61531#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 61532#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 61533#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 61534#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 61535#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 61536#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 61537#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 61538#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 61539#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 61540#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 61541#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 61542#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 61543#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 61544#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 61545#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 61546#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 61547#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 61548#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 61549#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 61550#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 61551#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 61552#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 61553#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 61554#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 61555#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 61556#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 61557#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 61558#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 61559#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 61560#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 61561#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 61562#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 61563#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 61564#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 61565#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 61566#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 61567#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 61568#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 61569#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 61570#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 61571#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 61572#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 61573#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 61574#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 61575#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 61576#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 61577#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 61578#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 61579#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 61580#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 61581#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 61582#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 61583#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 61584#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 61585#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 61586#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 61587#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 61588#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 61589#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 61590#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 61591#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 61592#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 61593#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 61594#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 61595#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 61596#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 61597#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 61598#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 61599#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 61600#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 61601#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 61602#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 61603#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 61604#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 61605#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 61606#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 61607#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 61608#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 61609#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 61610#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 61611#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 61612#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 61613#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 61614#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 61615#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 61616#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 61617#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 61618#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 61619#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 61620#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 61621#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 61622#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 61623#(and (<= (select main_a main_x) 116) (not (= main_x main_y))), 61624#(and (not (= main_x main_y)) (<= (select main_a main_x) 117)), 61625#(and (not (= main_x main_y)) (<= (select main_a main_x) 118)), 61626#(and (not (= main_x main_y)) (<= (select main_a main_x) 119)), 61627#(and (<= (select main_a main_x) 120) (not (= main_x main_y))), 61628#(and (not (= main_x main_y)) (<= (select main_a main_x) 121)), 61629#(and (not (= main_x main_y)) (<= (select main_a main_x) 122)), 61630#(and (not (= main_x main_y)) (<= (select main_a main_x) 123)), 61631#(and (not (= main_x main_y)) (<= (select main_a main_x) 124)), 61632#(and (not (= main_x main_y)) (<= (select main_a main_x) 125)), 61633#(and (not (= main_x main_y)) (<= (select main_a main_x) 126)), 61634#(and (<= (select main_a main_x) 127) (not (= main_x main_y))), 61635#(and (not (= main_x main_y)) (<= (select main_a main_x) 128)), 61636#(and (not (= main_x main_y)) (<= (select main_a main_x) 129)), 61637#(and (not (= main_x main_y)) (<= (select main_a main_x) 130)), 61638#(and (<= (select main_a main_x) 131) (not (= main_x main_y))), 61639#(and (<= (select main_a main_x) 132) (not (= main_x main_y))), 61640#(and (not (= main_x main_y)) (<= (select main_a main_x) 133)), 61641#(and (not (= main_x main_y)) (<= (select main_a main_x) 134)), 61642#(and (not (= main_x main_y)) (<= (select main_a main_x) 135)), 61643#(and (<= (select main_a main_x) 136) (not (= main_x main_y))), 61644#(and (<= (select main_a main_x) 137) (not (= main_x main_y))), 61645#(and (not (= main_x main_y)) (<= (select main_a main_x) 138)), 61646#(and (not (= main_x main_y)) (<= (select main_a main_x) 139)), 61647#(and (not (= main_x main_y)) (<= (select main_a main_x) 140)), 61648#(and (<= (select main_a main_x) 141) (not (= main_x main_y))), 61649#(and (not (= main_x main_y)) (<= (select main_a main_x) 142)), 61650#(and (not (= main_x main_y)) (<= (select main_a main_x) 143)), 61651#(and (<= (select main_a main_x) 144) (not (= main_x main_y))), 61652#(and (not (= main_x main_y)) (<= (select main_a main_x) 145)), 61653#(and (<= (select main_a main_x) 146) (not (= main_x main_y))), 61654#(and (not (= main_x main_y)) (<= (select main_a main_x) 147)), 61655#(and (<= (select main_a main_x) 148) (not (= main_x main_y))), 61656#(and (not (= main_x main_y)) (<= (select main_a main_x) 149)), 61657#(and (not (= main_x main_y)) (<= (select main_a main_x) 150)), 61658#(and (<= (select main_a main_x) 151) (not (= main_x main_y))), 61659#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:55:00,732 INFO L134 CoverageAnalysis]: Checked inductivity of 11628 backedges. 0 proven. 11628 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:00,732 INFO L450 AbstractCegarLoop]: Interpolant automaton has 155 states [2018-07-23 13:55:00,734 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 155 interpolants. [2018-07-23 13:55:00,735 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11935, Invalid=11935, Unknown=0, NotChecked=0, Total=23870 [2018-07-23 13:55:00,735 INFO L87 Difference]: Start difference. First operand 156 states and 156 transitions. Second operand 155 states. [2018-07-23 13:55:01,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:01,093 INFO L93 Difference]: Finished difference Result 159 states and 159 transitions. [2018-07-23 13:55:01,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 155 states. [2018-07-23 13:55:01,093 INFO L78 Accepts]: Start accepts. Automaton has 155 states. Word has length 155 [2018-07-23 13:55:01,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:01,094 INFO L225 Difference]: With dead ends: 159 [2018-07-23 13:55:01,094 INFO L226 Difference]: Without dead ends: 157 [2018-07-23 13:55:01,095 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 153 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=11935, Invalid=11935, Unknown=0, NotChecked=0, Total=23870 [2018-07-23 13:55:01,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2018-07-23 13:55:01,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2018-07-23 13:55:01,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2018-07-23 13:55:01,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 157 transitions. [2018-07-23 13:55:01,103 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 157 transitions. Word has length 155 [2018-07-23 13:55:01,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:01,103 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 157 transitions. [2018-07-23 13:55:01,103 INFO L472 AbstractCegarLoop]: Interpolant automaton has 155 states. [2018-07-23 13:55:01,103 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 157 transitions. [2018-07-23 13:55:01,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2018-07-23 13:55:01,104 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:01,104 INFO L357 BasicCegarLoop]: trace histogram [153, 1, 1, 1] [2018-07-23 13:55:01,104 INFO L414 AbstractCegarLoop]: === Iteration 154 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:01,104 INFO L82 PathProgramCache]: Analyzing trace with hash -1766506874, now seen corresponding path program 153 times [2018-07-23 13:55:01,104 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:01,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:03,561 INFO L134 CoverageAnalysis]: Checked inductivity of 11781 backedges. 0 proven. 11781 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:03,562 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:03,562 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [155] total 155 [2018-07-23 13:55:03,562 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:03,562 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 13:55:03,563 INFO L185 omatonBuilderFactory]: Interpolants [62292#true, 62293#false, 62294#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 62295#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 62296#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 62297#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 62298#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 62299#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 62300#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 62301#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 62302#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 62303#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 62304#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 62305#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 62306#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 62307#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 62308#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 62309#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 62310#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 62311#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 62312#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 62313#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 62314#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 62315#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 62316#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 62317#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 62318#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 62319#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 62320#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 62321#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 62322#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 62323#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 62324#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 62325#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 62326#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 62327#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 62328#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 62329#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 62330#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 62331#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 62332#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 62333#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 62334#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 62335#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 62336#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 62337#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 62338#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 62339#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 62340#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 62341#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 62342#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 62343#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 62344#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 62345#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 62346#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 62347#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 62348#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 62349#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 62350#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 62351#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 62352#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 62353#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 62354#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 62355#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 62356#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 62357#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 62358#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 62359#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 62360#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 62361#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 62362#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 62363#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 62364#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 62365#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 62366#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 62367#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 62368#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 62369#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 62370#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 62371#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 62372#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 62373#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 62374#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 62375#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 62376#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 62377#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 62378#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 62379#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 62380#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 62381#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 62382#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 62383#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 62384#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 62385#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 62386#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 62387#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 62388#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 62389#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 62390#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 62391#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 62392#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 62393#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 62394#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 62395#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 62396#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 62397#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 62398#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 62399#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 62400#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 62401#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 62402#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 62403#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 62404#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 62405#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 62406#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 62407#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 62408#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 62409#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 62410#(and (<= (select main_a main_x) 116) (not (= main_x main_y))), 62411#(and (not (= main_x main_y)) (<= (select main_a main_x) 117)), 62412#(and (not (= main_x main_y)) (<= (select main_a main_x) 118)), 62413#(and (not (= main_x main_y)) (<= (select main_a main_x) 119)), 62414#(and (<= (select main_a main_x) 120) (not (= main_x main_y))), 62415#(and (not (= main_x main_y)) (<= (select main_a main_x) 121)), 62416#(and (not (= main_x main_y)) (<= (select main_a main_x) 122)), 62417#(and (not (= main_x main_y)) (<= (select main_a main_x) 123)), 62418#(and (not (= main_x main_y)) (<= (select main_a main_x) 124)), 62419#(and (not (= main_x main_y)) (<= (select main_a main_x) 125)), 62420#(and (not (= main_x main_y)) (<= (select main_a main_x) 126)), 62421#(and (<= (select main_a main_x) 127) (not (= main_x main_y))), 62422#(and (not (= main_x main_y)) (<= (select main_a main_x) 128)), 62423#(and (not (= main_x main_y)) (<= (select main_a main_x) 129)), 62424#(and (not (= main_x main_y)) (<= (select main_a main_x) 130)), 62425#(and (<= (select main_a main_x) 131) (not (= main_x main_y))), 62426#(and (<= (select main_a main_x) 132) (not (= main_x main_y))), 62427#(and (not (= main_x main_y)) (<= (select main_a main_x) 133)), 62428#(and (not (= main_x main_y)) (<= (select main_a main_x) 134)), 62429#(and (not (= main_x main_y)) (<= (select main_a main_x) 135)), 62430#(and (<= (select main_a main_x) 136) (not (= main_x main_y))), 62431#(and (<= (select main_a main_x) 137) (not (= main_x main_y))), 62432#(and (not (= main_x main_y)) (<= (select main_a main_x) 138)), 62433#(and (not (= main_x main_y)) (<= (select main_a main_x) 139)), 62434#(and (not (= main_x main_y)) (<= (select main_a main_x) 140)), 62435#(and (<= (select main_a main_x) 141) (not (= main_x main_y))), 62436#(and (not (= main_x main_y)) (<= (select main_a main_x) 142)), 62437#(and (not (= main_x main_y)) (<= (select main_a main_x) 143)), 62438#(and (<= (select main_a main_x) 144) (not (= main_x main_y))), 62439#(and (not (= main_x main_y)) (<= (select main_a main_x) 145)), 62440#(and (<= (select main_a main_x) 146) (not (= main_x main_y))), 62441#(and (not (= main_x main_y)) (<= (select main_a main_x) 147)), 62442#(and (<= (select main_a main_x) 148) (not (= main_x main_y))), 62443#(and (not (= main_x main_y)) (<= (select main_a main_x) 149)), 62444#(and (not (= main_x main_y)) (<= (select main_a main_x) 150)), 62445#(and (<= (select main_a main_x) 151) (not (= main_x main_y))), 62446#(and (<= (select main_a main_x) 152) (not (= main_x main_y))), 62447#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:55:03,563 INFO L134 CoverageAnalysis]: Checked inductivity of 11781 backedges. 0 proven. 11781 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:03,564 INFO L450 AbstractCegarLoop]: Interpolant automaton has 156 states [2018-07-23 13:55:03,565 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 156 interpolants. [2018-07-23 13:55:03,566 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12090, Invalid=12090, Unknown=0, NotChecked=0, Total=24180 [2018-07-23 13:55:03,566 INFO L87 Difference]: Start difference. First operand 157 states and 157 transitions. Second operand 156 states. [2018-07-23 13:55:03,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:03,930 INFO L93 Difference]: Finished difference Result 160 states and 160 transitions. [2018-07-23 13:55:03,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 156 states. [2018-07-23 13:55:03,930 INFO L78 Accepts]: Start accepts. Automaton has 156 states. Word has length 156 [2018-07-23 13:55:03,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:03,930 INFO L225 Difference]: With dead ends: 160 [2018-07-23 13:55:03,930 INFO L226 Difference]: Without dead ends: 158 [2018-07-23 13:55:03,931 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=12090, Invalid=12090, Unknown=0, NotChecked=0, Total=24180 [2018-07-23 13:55:03,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2018-07-23 13:55:03,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2018-07-23 13:55:03,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2018-07-23 13:55:03,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 158 transitions. [2018-07-23 13:55:03,937 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 158 transitions. Word has length 156 [2018-07-23 13:55:03,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:03,937 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 158 transitions. [2018-07-23 13:55:03,937 INFO L472 AbstractCegarLoop]: Interpolant automaton has 156 states. [2018-07-23 13:55:03,937 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 158 transitions. [2018-07-23 13:55:03,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2018-07-23 13:55:03,937 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:03,937 INFO L357 BasicCegarLoop]: trace histogram [154, 1, 1, 1] [2018-07-23 13:55:03,937 INFO L414 AbstractCegarLoop]: === Iteration 155 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:03,938 INFO L82 PathProgramCache]: Analyzing trace with hash 1072857888, now seen corresponding path program 154 times [2018-07-23 13:55:03,938 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:04,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:06,568 INFO L134 CoverageAnalysis]: Checked inductivity of 11935 backedges. 0 proven. 11935 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:06,568 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:06,568 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [156] total 156 [2018-07-23 13:55:06,568 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:06,569 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 13:55:06,569 INFO L185 omatonBuilderFactory]: Interpolants [63232#(and (<= (select main_a main_x) 146) (not (= main_x main_y))), 63233#(and (not (= main_x main_y)) (<= (select main_a main_x) 147)), 63234#(and (<= (select main_a main_x) 148) (not (= main_x main_y))), 63235#(and (not (= main_x main_y)) (<= (select main_a main_x) 149)), 63236#(and (not (= main_x main_y)) (<= (select main_a main_x) 150)), 63237#(and (<= (select main_a main_x) 151) (not (= main_x main_y))), 63238#(and (<= (select main_a main_x) 152) (not (= main_x main_y))), 63239#(and (<= (select main_a main_x) 153) (not (= main_x main_y))), 63240#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 63084#true, 63085#false, 63086#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 63087#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 63088#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 63089#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 63090#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 63091#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 63092#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 63093#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 63094#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 63095#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 63096#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 63097#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 63098#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 63099#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 63100#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 63101#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 63102#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 63103#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 63104#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 63105#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 63106#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 63107#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 63108#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 63109#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 63110#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 63111#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 63112#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 63113#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 63114#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 63115#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 63116#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 63117#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 63118#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 63119#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 63120#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 63121#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 63122#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 63123#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 63124#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 63125#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 63126#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 63127#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 63128#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 63129#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 63130#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 63131#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 63132#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 63133#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 63134#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 63135#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 63136#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 63137#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 63138#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 63139#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 63140#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 63141#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 63142#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 63143#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 63144#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 63145#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 63146#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 63147#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 63148#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 63149#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 63150#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 63151#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 63152#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 63153#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 63154#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 63155#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 63156#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 63157#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 63158#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 63159#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 63160#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 63161#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 63162#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 63163#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 63164#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 63165#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 63166#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 63167#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 63168#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 63169#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 63170#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 63171#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 63172#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 63173#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 63174#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 63175#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 63176#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 63177#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 63178#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 63179#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 63180#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 63181#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 63182#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 63183#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 63184#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 63185#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 63186#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 63187#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 63188#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 63189#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 63190#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 63191#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 63192#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 63193#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 63194#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 63195#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 63196#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 63197#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 63198#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 63199#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 63200#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 63201#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 63202#(and (<= (select main_a main_x) 116) (not (= main_x main_y))), 63203#(and (not (= main_x main_y)) (<= (select main_a main_x) 117)), 63204#(and (not (= main_x main_y)) (<= (select main_a main_x) 118)), 63205#(and (not (= main_x main_y)) (<= (select main_a main_x) 119)), 63206#(and (<= (select main_a main_x) 120) (not (= main_x main_y))), 63207#(and (not (= main_x main_y)) (<= (select main_a main_x) 121)), 63208#(and (not (= main_x main_y)) (<= (select main_a main_x) 122)), 63209#(and (not (= main_x main_y)) (<= (select main_a main_x) 123)), 63210#(and (not (= main_x main_y)) (<= (select main_a main_x) 124)), 63211#(and (not (= main_x main_y)) (<= (select main_a main_x) 125)), 63212#(and (not (= main_x main_y)) (<= (select main_a main_x) 126)), 63213#(and (<= (select main_a main_x) 127) (not (= main_x main_y))), 63214#(and (not (= main_x main_y)) (<= (select main_a main_x) 128)), 63215#(and (not (= main_x main_y)) (<= (select main_a main_x) 129)), 63216#(and (not (= main_x main_y)) (<= (select main_a main_x) 130)), 63217#(and (<= (select main_a main_x) 131) (not (= main_x main_y))), 63218#(and (<= (select main_a main_x) 132) (not (= main_x main_y))), 63219#(and (not (= main_x main_y)) (<= (select main_a main_x) 133)), 63220#(and (not (= main_x main_y)) (<= (select main_a main_x) 134)), 63221#(and (not (= main_x main_y)) (<= (select main_a main_x) 135)), 63222#(and (<= (select main_a main_x) 136) (not (= main_x main_y))), 63223#(and (<= (select main_a main_x) 137) (not (= main_x main_y))), 63224#(and (not (= main_x main_y)) (<= (select main_a main_x) 138)), 63225#(and (not (= main_x main_y)) (<= (select main_a main_x) 139)), 63226#(and (not (= main_x main_y)) (<= (select main_a main_x) 140)), 63227#(and (<= (select main_a main_x) 141) (not (= main_x main_y))), 63228#(and (not (= main_x main_y)) (<= (select main_a main_x) 142)), 63229#(and (not (= main_x main_y)) (<= (select main_a main_x) 143)), 63230#(and (<= (select main_a main_x) 144) (not (= main_x main_y))), 63231#(and (not (= main_x main_y)) (<= (select main_a main_x) 145))] [2018-07-23 13:55:06,570 INFO L134 CoverageAnalysis]: Checked inductivity of 11935 backedges. 0 proven. 11935 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:06,570 INFO L450 AbstractCegarLoop]: Interpolant automaton has 157 states [2018-07-23 13:55:06,571 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 157 interpolants. [2018-07-23 13:55:06,571 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12246, Invalid=12246, Unknown=0, NotChecked=0, Total=24492 [2018-07-23 13:55:06,572 INFO L87 Difference]: Start difference. First operand 158 states and 158 transitions. Second operand 157 states. [2018-07-23 13:55:06,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:06,880 INFO L93 Difference]: Finished difference Result 161 states and 161 transitions. [2018-07-23 13:55:06,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 157 states. [2018-07-23 13:55:06,880 INFO L78 Accepts]: Start accepts. Automaton has 157 states. Word has length 157 [2018-07-23 13:55:06,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:06,880 INFO L225 Difference]: With dead ends: 161 [2018-07-23 13:55:06,880 INFO L226 Difference]: Without dead ends: 159 [2018-07-23 13:55:06,881 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=12246, Invalid=12246, Unknown=0, NotChecked=0, Total=24492 [2018-07-23 13:55:06,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2018-07-23 13:55:06,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2018-07-23 13:55:06,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2018-07-23 13:55:06,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 159 transitions. [2018-07-23 13:55:06,886 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 159 transitions. Word has length 157 [2018-07-23 13:55:06,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:06,886 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 159 transitions. [2018-07-23 13:55:06,886 INFO L472 AbstractCegarLoop]: Interpolant automaton has 157 states. [2018-07-23 13:55:06,886 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 159 transitions. [2018-07-23 13:55:06,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2018-07-23 13:55:06,887 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:06,887 INFO L357 BasicCegarLoop]: trace histogram [155, 1, 1, 1] [2018-07-23 13:55:06,887 INFO L414 AbstractCegarLoop]: === Iteration 156 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:06,887 INFO L82 PathProgramCache]: Analyzing trace with hash -1101147706, now seen corresponding path program 155 times [2018-07-23 13:55:06,887 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:07,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:09,396 INFO L134 CoverageAnalysis]: Checked inductivity of 12090 backedges. 0 proven. 12090 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:09,396 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:09,396 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [157] total 157 [2018-07-23 13:55:09,396 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:09,397 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 13:55:09,397 INFO L185 omatonBuilderFactory]: Interpolants [64000#(and (not (= main_x main_y)) (<= (select main_a main_x) 117)), 64001#(and (not (= main_x main_y)) (<= (select main_a main_x) 118)), 64002#(and (not (= main_x main_y)) (<= (select main_a main_x) 119)), 64003#(and (<= (select main_a main_x) 120) (not (= main_x main_y))), 64004#(and (not (= main_x main_y)) (<= (select main_a main_x) 121)), 64005#(and (not (= main_x main_y)) (<= (select main_a main_x) 122)), 64006#(and (not (= main_x main_y)) (<= (select main_a main_x) 123)), 64007#(and (not (= main_x main_y)) (<= (select main_a main_x) 124)), 64008#(and (not (= main_x main_y)) (<= (select main_a main_x) 125)), 64009#(and (not (= main_x main_y)) (<= (select main_a main_x) 126)), 64010#(and (<= (select main_a main_x) 127) (not (= main_x main_y))), 64011#(and (not (= main_x main_y)) (<= (select main_a main_x) 128)), 64012#(and (not (= main_x main_y)) (<= (select main_a main_x) 129)), 64013#(and (not (= main_x main_y)) (<= (select main_a main_x) 130)), 64014#(and (<= (select main_a main_x) 131) (not (= main_x main_y))), 64015#(and (<= (select main_a main_x) 132) (not (= main_x main_y))), 64016#(and (not (= main_x main_y)) (<= (select main_a main_x) 133)), 64017#(and (not (= main_x main_y)) (<= (select main_a main_x) 134)), 64018#(and (not (= main_x main_y)) (<= (select main_a main_x) 135)), 64019#(and (<= (select main_a main_x) 136) (not (= main_x main_y))), 64020#(and (<= (select main_a main_x) 137) (not (= main_x main_y))), 64021#(and (not (= main_x main_y)) (<= (select main_a main_x) 138)), 64022#(and (not (= main_x main_y)) (<= (select main_a main_x) 139)), 64023#(and (not (= main_x main_y)) (<= (select main_a main_x) 140)), 64024#(and (<= (select main_a main_x) 141) (not (= main_x main_y))), 64025#(and (not (= main_x main_y)) (<= (select main_a main_x) 142)), 64026#(and (not (= main_x main_y)) (<= (select main_a main_x) 143)), 64027#(and (<= (select main_a main_x) 144) (not (= main_x main_y))), 64028#(and (not (= main_x main_y)) (<= (select main_a main_x) 145)), 64029#(and (<= (select main_a main_x) 146) (not (= main_x main_y))), 64030#(and (not (= main_x main_y)) (<= (select main_a main_x) 147)), 64031#(and (<= (select main_a main_x) 148) (not (= main_x main_y))), 64032#(and (not (= main_x main_y)) (<= (select main_a main_x) 149)), 64033#(and (not (= main_x main_y)) (<= (select main_a main_x) 150)), 64034#(and (<= (select main_a main_x) 151) (not (= main_x main_y))), 64035#(and (<= (select main_a main_x) 152) (not (= main_x main_y))), 64036#(and (<= (select main_a main_x) 153) (not (= main_x main_y))), 64037#(and (not (= main_x main_y)) (<= (select main_a main_x) 154)), 64038#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 63881#true, 63882#false, 63883#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 63884#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 63885#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 63886#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 63887#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 63888#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 63889#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 63890#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 63891#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 63892#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 63893#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 63894#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 63895#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 63896#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 63897#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 63898#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 63899#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 63900#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 63901#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 63902#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 63903#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 63904#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 63905#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 63906#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 63907#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 63908#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 63909#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 63910#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 63911#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 63912#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 63913#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 63914#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 63915#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 63916#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 63917#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 63918#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 63919#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 63920#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 63921#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 63922#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 63923#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 63924#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 63925#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 63926#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 63927#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 63928#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 63929#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 63930#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 63931#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 63932#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 63933#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 63934#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 63935#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 63936#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 63937#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 63938#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 63939#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 63940#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 63941#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 63942#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 63943#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 63944#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 63945#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 63946#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 63947#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 63948#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 63949#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 63950#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 63951#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 63952#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 63953#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 63954#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 63955#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 63956#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 63957#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 63958#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 63959#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 63960#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 63961#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 63962#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 63963#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 63964#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 63965#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 63966#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 63967#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 63968#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 63969#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 63970#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 63971#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 63972#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 63973#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 63974#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 63975#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 63976#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 63977#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 63978#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 63979#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 63980#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 63981#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 63982#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 63983#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 63984#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 63985#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 63986#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 63987#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 63988#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 63989#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 63990#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 63991#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 63992#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 63993#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 63994#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 63995#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 63996#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 63997#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 63998#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 63999#(and (<= (select main_a main_x) 116) (not (= main_x main_y)))] [2018-07-23 13:55:09,398 INFO L134 CoverageAnalysis]: Checked inductivity of 12090 backedges. 0 proven. 12090 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:09,398 INFO L450 AbstractCegarLoop]: Interpolant automaton has 158 states [2018-07-23 13:55:09,400 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 158 interpolants. [2018-07-23 13:55:09,401 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12403, Invalid=12403, Unknown=0, NotChecked=0, Total=24806 [2018-07-23 13:55:09,401 INFO L87 Difference]: Start difference. First operand 159 states and 159 transitions. Second operand 158 states. [2018-07-23 13:55:09,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:09,604 INFO L93 Difference]: Finished difference Result 162 states and 162 transitions. [2018-07-23 13:55:09,604 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 158 states. [2018-07-23 13:55:09,604 INFO L78 Accepts]: Start accepts. Automaton has 158 states. Word has length 158 [2018-07-23 13:55:09,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:09,605 INFO L225 Difference]: With dead ends: 162 [2018-07-23 13:55:09,605 INFO L226 Difference]: Without dead ends: 160 [2018-07-23 13:55:09,606 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=12403, Invalid=12403, Unknown=0, NotChecked=0, Total=24806 [2018-07-23 13:55:09,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2018-07-23 13:55:09,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2018-07-23 13:55:09,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2018-07-23 13:55:09,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 160 transitions. [2018-07-23 13:55:09,611 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 160 transitions. Word has length 158 [2018-07-23 13:55:09,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:09,611 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 160 transitions. [2018-07-23 13:55:09,611 INFO L472 AbstractCegarLoop]: Interpolant automaton has 158 states. [2018-07-23 13:55:09,611 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 160 transitions. [2018-07-23 13:55:09,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2018-07-23 13:55:09,612 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:09,612 INFO L357 BasicCegarLoop]: trace histogram [156, 1, 1, 1] [2018-07-23 13:55:09,612 INFO L414 AbstractCegarLoop]: === Iteration 157 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:09,612 INFO L82 PathProgramCache]: Analyzing trace with hash 224155616, now seen corresponding path program 156 times [2018-07-23 13:55:09,612 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:09,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:12,140 INFO L134 CoverageAnalysis]: Checked inductivity of 12246 backedges. 0 proven. 12246 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:12,140 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:12,140 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [158] total 158 [2018-07-23 13:55:12,140 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:12,140 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 13:55:12,141 INFO L185 omatonBuilderFactory]: Interpolants [64768#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 64769#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 64770#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 64771#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 64772#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 64773#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 64774#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 64775#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 64776#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 64777#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 64778#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 64779#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 64780#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 64781#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 64782#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 64783#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 64784#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 64785#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 64786#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 64787#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 64788#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 64789#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 64790#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 64791#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 64792#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 64793#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 64794#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 64795#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 64796#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 64797#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 64798#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 64799#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 64800#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 64801#(and (<= (select main_a main_x) 116) (not (= main_x main_y))), 64802#(and (not (= main_x main_y)) (<= (select main_a main_x) 117)), 64803#(and (not (= main_x main_y)) (<= (select main_a main_x) 118)), 64804#(and (not (= main_x main_y)) (<= (select main_a main_x) 119)), 64805#(and (<= (select main_a main_x) 120) (not (= main_x main_y))), 64806#(and (not (= main_x main_y)) (<= (select main_a main_x) 121)), 64807#(and (not (= main_x main_y)) (<= (select main_a main_x) 122)), 64808#(and (not (= main_x main_y)) (<= (select main_a main_x) 123)), 64809#(and (not (= main_x main_y)) (<= (select main_a main_x) 124)), 64810#(and (not (= main_x main_y)) (<= (select main_a main_x) 125)), 64811#(and (not (= main_x main_y)) (<= (select main_a main_x) 126)), 64812#(and (<= (select main_a main_x) 127) (not (= main_x main_y))), 64813#(and (not (= main_x main_y)) (<= (select main_a main_x) 128)), 64814#(and (not (= main_x main_y)) (<= (select main_a main_x) 129)), 64815#(and (not (= main_x main_y)) (<= (select main_a main_x) 130)), 64816#(and (<= (select main_a main_x) 131) (not (= main_x main_y))), 64817#(and (<= (select main_a main_x) 132) (not (= main_x main_y))), 64818#(and (not (= main_x main_y)) (<= (select main_a main_x) 133)), 64819#(and (not (= main_x main_y)) (<= (select main_a main_x) 134)), 64820#(and (not (= main_x main_y)) (<= (select main_a main_x) 135)), 64821#(and (<= (select main_a main_x) 136) (not (= main_x main_y))), 64822#(and (<= (select main_a main_x) 137) (not (= main_x main_y))), 64823#(and (not (= main_x main_y)) (<= (select main_a main_x) 138)), 64824#(and (not (= main_x main_y)) (<= (select main_a main_x) 139)), 64825#(and (not (= main_x main_y)) (<= (select main_a main_x) 140)), 64826#(and (<= (select main_a main_x) 141) (not (= main_x main_y))), 64827#(and (not (= main_x main_y)) (<= (select main_a main_x) 142)), 64828#(and (not (= main_x main_y)) (<= (select main_a main_x) 143)), 64829#(and (<= (select main_a main_x) 144) (not (= main_x main_y))), 64830#(and (not (= main_x main_y)) (<= (select main_a main_x) 145)), 64831#(and (<= (select main_a main_x) 146) (not (= main_x main_y))), 64832#(and (not (= main_x main_y)) (<= (select main_a main_x) 147)), 64833#(and (<= (select main_a main_x) 148) (not (= main_x main_y))), 64834#(and (not (= main_x main_y)) (<= (select main_a main_x) 149)), 64835#(and (not (= main_x main_y)) (<= (select main_a main_x) 150)), 64836#(and (<= (select main_a main_x) 151) (not (= main_x main_y))), 64837#(and (<= (select main_a main_x) 152) (not (= main_x main_y))), 64838#(and (<= (select main_a main_x) 153) (not (= main_x main_y))), 64839#(and (not (= main_x main_y)) (<= (select main_a main_x) 154)), 64840#(and (<= (select main_a main_x) 155) (not (= main_x main_y))), 64841#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 64683#true, 64684#false, 64685#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 64686#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 64687#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 64688#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 64689#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 64690#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 64691#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 64692#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 64693#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 64694#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 64695#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 64696#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 64697#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 64698#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 64699#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 64700#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 64701#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 64702#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 64703#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 64704#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 64705#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 64706#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 64707#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 64708#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 64709#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 64710#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 64711#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 64712#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 64713#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 64714#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 64715#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 64716#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 64717#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 64718#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 64719#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 64720#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 64721#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 64722#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 64723#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 64724#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 64725#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 64726#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 64727#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 64728#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 64729#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 64730#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 64731#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 64732#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 64733#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 64734#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 64735#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 64736#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 64737#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 64738#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 64739#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 64740#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 64741#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 64742#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 64743#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 64744#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 64745#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 64746#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 64747#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 64748#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 64749#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 64750#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 64751#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 64752#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 64753#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 64754#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 64755#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 64756#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 64757#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 64758#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 64759#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 64760#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 64761#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 64762#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 64763#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 64764#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 64765#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 64766#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 64767#(and (<= (select main_a main_x) 82) (not (= main_x main_y)))] [2018-07-23 13:55:12,142 INFO L134 CoverageAnalysis]: Checked inductivity of 12246 backedges. 0 proven. 12246 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:12,142 INFO L450 AbstractCegarLoop]: Interpolant automaton has 159 states [2018-07-23 13:55:12,143 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 159 interpolants. [2018-07-23 13:55:12,144 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12561, Invalid=12561, Unknown=0, NotChecked=0, Total=25122 [2018-07-23 13:55:12,144 INFO L87 Difference]: Start difference. First operand 160 states and 160 transitions. Second operand 159 states. [2018-07-23 13:55:12,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:12,294 INFO L93 Difference]: Finished difference Result 163 states and 163 transitions. [2018-07-23 13:55:12,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 159 states. [2018-07-23 13:55:12,294 INFO L78 Accepts]: Start accepts. Automaton has 159 states. Word has length 159 [2018-07-23 13:55:12,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:12,294 INFO L225 Difference]: With dead ends: 163 [2018-07-23 13:55:12,294 INFO L226 Difference]: Without dead ends: 161 [2018-07-23 13:55:12,295 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 157 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=12561, Invalid=12561, Unknown=0, NotChecked=0, Total=25122 [2018-07-23 13:55:12,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2018-07-23 13:55:12,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2018-07-23 13:55:12,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2018-07-23 13:55:12,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 161 transitions. [2018-07-23 13:55:12,301 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 161 transitions. Word has length 159 [2018-07-23 13:55:12,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:12,301 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 161 transitions. [2018-07-23 13:55:12,301 INFO L472 AbstractCegarLoop]: Interpolant automaton has 159 states. [2018-07-23 13:55:12,301 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 161 transitions. [2018-07-23 13:55:12,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2018-07-23 13:55:12,301 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:12,301 INFO L357 BasicCegarLoop]: trace histogram [157, 1, 1, 1] [2018-07-23 13:55:12,301 INFO L414 AbstractCegarLoop]: === Iteration 158 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:12,302 INFO L82 PathProgramCache]: Analyzing trace with hash -1641114362, now seen corresponding path program 157 times [2018-07-23 13:55:12,302 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:12,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:15,106 INFO L134 CoverageAnalysis]: Checked inductivity of 12403 backedges. 0 proven. 12403 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:15,107 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:15,107 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [159] total 159 [2018-07-23 13:55:15,107 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:15,107 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 13:55:15,108 INFO L185 omatonBuilderFactory]: Interpolants [65537#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 65536#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 65539#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 65538#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 65541#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 65540#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 65543#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 65542#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 65545#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 65544#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 65547#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 65546#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 65549#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 65548#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 65551#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 65550#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 65553#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 65552#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 65555#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 65554#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 65557#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 65556#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 65559#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 65558#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 65561#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 65560#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 65563#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 65562#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 65565#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 65564#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 65567#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 65566#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 65569#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 65568#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 65571#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 65570#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 65573#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 65572#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 65575#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 65574#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 65577#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 65576#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 65579#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 65578#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 65581#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 65580#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 65583#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 65582#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 65585#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 65584#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 65587#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 65586#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 65589#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 65588#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 65591#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 65590#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 65593#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 65592#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 65595#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 65594#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 65597#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 65596#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 65599#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 65598#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 65601#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 65600#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 65603#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 65602#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 65605#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 65604#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 65607#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 65606#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 65609#(and (not (= main_x main_y)) (<= (select main_a main_x) 117)), 65608#(and (<= (select main_a main_x) 116) (not (= main_x main_y))), 65611#(and (not (= main_x main_y)) (<= (select main_a main_x) 119)), 65610#(and (not (= main_x main_y)) (<= (select main_a main_x) 118)), 65613#(and (not (= main_x main_y)) (<= (select main_a main_x) 121)), 65612#(and (<= (select main_a main_x) 120) (not (= main_x main_y))), 65615#(and (not (= main_x main_y)) (<= (select main_a main_x) 123)), 65614#(and (not (= main_x main_y)) (<= (select main_a main_x) 122)), 65617#(and (not (= main_x main_y)) (<= (select main_a main_x) 125)), 65616#(and (not (= main_x main_y)) (<= (select main_a main_x) 124)), 65619#(and (<= (select main_a main_x) 127) (not (= main_x main_y))), 65618#(and (not (= main_x main_y)) (<= (select main_a main_x) 126)), 65621#(and (not (= main_x main_y)) (<= (select main_a main_x) 129)), 65620#(and (not (= main_x main_y)) (<= (select main_a main_x) 128)), 65623#(and (<= (select main_a main_x) 131) (not (= main_x main_y))), 65622#(and (not (= main_x main_y)) (<= (select main_a main_x) 130)), 65625#(and (not (= main_x main_y)) (<= (select main_a main_x) 133)), 65624#(and (<= (select main_a main_x) 132) (not (= main_x main_y))), 65627#(and (not (= main_x main_y)) (<= (select main_a main_x) 135)), 65626#(and (not (= main_x main_y)) (<= (select main_a main_x) 134)), 65629#(and (<= (select main_a main_x) 137) (not (= main_x main_y))), 65628#(and (<= (select main_a main_x) 136) (not (= main_x main_y))), 65631#(and (not (= main_x main_y)) (<= (select main_a main_x) 139)), 65630#(and (not (= main_x main_y)) (<= (select main_a main_x) 138)), 65633#(and (<= (select main_a main_x) 141) (not (= main_x main_y))), 65632#(and (not (= main_x main_y)) (<= (select main_a main_x) 140)), 65635#(and (not (= main_x main_y)) (<= (select main_a main_x) 143)), 65634#(and (not (= main_x main_y)) (<= (select main_a main_x) 142)), 65637#(and (not (= main_x main_y)) (<= (select main_a main_x) 145)), 65636#(and (<= (select main_a main_x) 144) (not (= main_x main_y))), 65639#(and (not (= main_x main_y)) (<= (select main_a main_x) 147)), 65638#(and (<= (select main_a main_x) 146) (not (= main_x main_y))), 65641#(and (not (= main_x main_y)) (<= (select main_a main_x) 149)), 65640#(and (<= (select main_a main_x) 148) (not (= main_x main_y))), 65643#(and (<= (select main_a main_x) 151) (not (= main_x main_y))), 65642#(and (not (= main_x main_y)) (<= (select main_a main_x) 150)), 65645#(and (<= (select main_a main_x) 153) (not (= main_x main_y))), 65644#(and (<= (select main_a main_x) 152) (not (= main_x main_y))), 65647#(and (<= (select main_a main_x) 155) (not (= main_x main_y))), 65646#(and (not (= main_x main_y)) (<= (select main_a main_x) 154)), 65649#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 65648#(and (<= (select main_a main_x) 156) (not (= main_x main_y))), 65490#true, 65491#false, 65492#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 65493#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 65494#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 65495#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 65496#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 65497#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 65498#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 65499#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 65500#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 65501#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 65502#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 65503#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 65504#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 65505#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 65506#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 65507#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 65508#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 65509#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 65510#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 65511#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 65512#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 65513#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 65514#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 65515#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 65516#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 65517#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 65518#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 65519#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 65520#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 65521#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 65522#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 65523#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 65524#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 65525#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 65526#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 65527#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 65528#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 65529#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 65530#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 65531#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 65532#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 65533#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 65534#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 65535#(and (not (= main_x main_y)) (<= (select main_a main_x) 43))] [2018-07-23 13:55:15,108 INFO L134 CoverageAnalysis]: Checked inductivity of 12403 backedges. 0 proven. 12403 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:15,109 INFO L450 AbstractCegarLoop]: Interpolant automaton has 160 states [2018-07-23 13:55:15,110 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 160 interpolants. [2018-07-23 13:55:15,110 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12720, Invalid=12720, Unknown=0, NotChecked=0, Total=25440 [2018-07-23 13:55:15,111 INFO L87 Difference]: Start difference. First operand 161 states and 161 transitions. Second operand 160 states. [2018-07-23 13:55:15,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:15,389 INFO L93 Difference]: Finished difference Result 164 states and 164 transitions. [2018-07-23 13:55:15,389 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 160 states. [2018-07-23 13:55:15,389 INFO L78 Accepts]: Start accepts. Automaton has 160 states. Word has length 160 [2018-07-23 13:55:15,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:15,389 INFO L225 Difference]: With dead ends: 164 [2018-07-23 13:55:15,389 INFO L226 Difference]: Without dead ends: 162 [2018-07-23 13:55:15,390 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=12720, Invalid=12720, Unknown=0, NotChecked=0, Total=25440 [2018-07-23 13:55:15,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2018-07-23 13:55:15,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2018-07-23 13:55:15,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2018-07-23 13:55:15,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 162 transitions. [2018-07-23 13:55:15,395 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 162 transitions. Word has length 160 [2018-07-23 13:55:15,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:15,395 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 162 transitions. [2018-07-23 13:55:15,395 INFO L472 AbstractCegarLoop]: Interpolant automaton has 160 states. [2018-07-23 13:55:15,395 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 162 transitions. [2018-07-23 13:55:15,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2018-07-23 13:55:15,396 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:15,396 INFO L357 BasicCegarLoop]: trace histogram [158, 1, 1, 1] [2018-07-23 13:55:15,396 INFO L414 AbstractCegarLoop]: === Iteration 159 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:15,396 INFO L82 PathProgramCache]: Analyzing trace with hash 665058464, now seen corresponding path program 158 times [2018-07-23 13:55:15,396 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:15,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:17,996 INFO L134 CoverageAnalysis]: Checked inductivity of 12561 backedges. 0 proven. 12561 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:17,996 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:17,996 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [160] total 160 [2018-07-23 13:55:17,996 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:17,996 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 13:55:17,997 INFO L185 omatonBuilderFactory]: Interpolants [66305#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 66304#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 66307#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 66306#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 66309#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 66308#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 66311#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 66310#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 66313#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 66312#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 66315#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 66314#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 66317#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 66316#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 66319#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 66318#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 66321#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 66320#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 66323#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 66322#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 66325#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 66324#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 66327#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 66326#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 66329#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 66328#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 66331#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 66330#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 66333#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 66332#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 66335#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 66334#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 66337#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 66336#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 66339#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 66338#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 66341#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 66340#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 66343#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 66342#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 66345#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 66344#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 66347#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 66346#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 66349#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 66348#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 66351#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 66350#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 66353#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 66352#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 66355#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 66354#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 66357#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 66356#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 66359#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 66358#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 66361#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 66360#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 66363#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 66362#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 66365#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 66364#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 66367#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 66366#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 66369#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 66368#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 66371#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 66370#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 66373#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 66372#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 66375#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 66374#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 66377#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 66376#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 66379#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 66378#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 66381#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 66380#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 66383#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 66382#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 66385#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 66384#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 66387#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 66386#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 66389#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 66388#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 66391#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 66390#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 66393#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 66392#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 66395#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 66394#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 66397#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 66396#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 66399#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 66398#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 66401#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 66400#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 66403#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 66402#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 66405#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 66404#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 66407#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 66406#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 66409#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 66408#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 66411#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 66410#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 66413#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 66412#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 66415#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 66414#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 66417#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 66416#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 66419#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 66418#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 66421#(and (not (= main_x main_y)) (<= (select main_a main_x) 117)), 66420#(and (<= (select main_a main_x) 116) (not (= main_x main_y))), 66423#(and (not (= main_x main_y)) (<= (select main_a main_x) 119)), 66422#(and (not (= main_x main_y)) (<= (select main_a main_x) 118)), 66425#(and (not (= main_x main_y)) (<= (select main_a main_x) 121)), 66424#(and (<= (select main_a main_x) 120) (not (= main_x main_y))), 66427#(and (not (= main_x main_y)) (<= (select main_a main_x) 123)), 66426#(and (not (= main_x main_y)) (<= (select main_a main_x) 122)), 66429#(and (not (= main_x main_y)) (<= (select main_a main_x) 125)), 66428#(and (not (= main_x main_y)) (<= (select main_a main_x) 124)), 66431#(and (<= (select main_a main_x) 127) (not (= main_x main_y))), 66430#(and (not (= main_x main_y)) (<= (select main_a main_x) 126)), 66433#(and (not (= main_x main_y)) (<= (select main_a main_x) 129)), 66432#(and (not (= main_x main_y)) (<= (select main_a main_x) 128)), 66435#(and (<= (select main_a main_x) 131) (not (= main_x main_y))), 66434#(and (not (= main_x main_y)) (<= (select main_a main_x) 130)), 66437#(and (not (= main_x main_y)) (<= (select main_a main_x) 133)), 66436#(and (<= (select main_a main_x) 132) (not (= main_x main_y))), 66439#(and (not (= main_x main_y)) (<= (select main_a main_x) 135)), 66438#(and (not (= main_x main_y)) (<= (select main_a main_x) 134)), 66441#(and (<= (select main_a main_x) 137) (not (= main_x main_y))), 66440#(and (<= (select main_a main_x) 136) (not (= main_x main_y))), 66443#(and (not (= main_x main_y)) (<= (select main_a main_x) 139)), 66442#(and (not (= main_x main_y)) (<= (select main_a main_x) 138)), 66445#(and (<= (select main_a main_x) 141) (not (= main_x main_y))), 66444#(and (not (= main_x main_y)) (<= (select main_a main_x) 140)), 66447#(and (not (= main_x main_y)) (<= (select main_a main_x) 143)), 66446#(and (not (= main_x main_y)) (<= (select main_a main_x) 142)), 66449#(and (not (= main_x main_y)) (<= (select main_a main_x) 145)), 66448#(and (<= (select main_a main_x) 144) (not (= main_x main_y))), 66451#(and (not (= main_x main_y)) (<= (select main_a main_x) 147)), 66450#(and (<= (select main_a main_x) 146) (not (= main_x main_y))), 66453#(and (not (= main_x main_y)) (<= (select main_a main_x) 149)), 66452#(and (<= (select main_a main_x) 148) (not (= main_x main_y))), 66455#(and (<= (select main_a main_x) 151) (not (= main_x main_y))), 66454#(and (not (= main_x main_y)) (<= (select main_a main_x) 150)), 66457#(and (<= (select main_a main_x) 153) (not (= main_x main_y))), 66456#(and (<= (select main_a main_x) 152) (not (= main_x main_y))), 66459#(and (<= (select main_a main_x) 155) (not (= main_x main_y))), 66458#(and (not (= main_x main_y)) (<= (select main_a main_x) 154)), 66461#(and (not (= main_x main_y)) (<= (select main_a main_x) 157)), 66460#(and (<= (select main_a main_x) 156) (not (= main_x main_y))), 66462#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 66303#false, 66302#true] [2018-07-23 13:55:17,998 INFO L134 CoverageAnalysis]: Checked inductivity of 12561 backedges. 0 proven. 12561 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:17,998 INFO L450 AbstractCegarLoop]: Interpolant automaton has 161 states [2018-07-23 13:55:18,000 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 161 interpolants. [2018-07-23 13:55:18,001 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12880, Invalid=12880, Unknown=0, NotChecked=0, Total=25760 [2018-07-23 13:55:18,001 INFO L87 Difference]: Start difference. First operand 162 states and 162 transitions. Second operand 161 states. [2018-07-23 13:55:18,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:18,448 INFO L93 Difference]: Finished difference Result 165 states and 165 transitions. [2018-07-23 13:55:18,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 161 states. [2018-07-23 13:55:18,448 INFO L78 Accepts]: Start accepts. Automaton has 161 states. Word has length 161 [2018-07-23 13:55:18,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:18,448 INFO L225 Difference]: With dead ends: 165 [2018-07-23 13:55:18,449 INFO L226 Difference]: Without dead ends: 163 [2018-07-23 13:55:18,450 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=12880, Invalid=12880, Unknown=0, NotChecked=0, Total=25760 [2018-07-23 13:55:18,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2018-07-23 13:55:18,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2018-07-23 13:55:18,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2018-07-23 13:55:18,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 163 transitions. [2018-07-23 13:55:18,455 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 163 transitions. Word has length 161 [2018-07-23 13:55:18,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:18,455 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 163 transitions. [2018-07-23 13:55:18,455 INFO L472 AbstractCegarLoop]: Interpolant automaton has 161 states. [2018-07-23 13:55:18,455 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 163 transitions. [2018-07-23 13:55:18,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2018-07-23 13:55:18,456 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:18,456 INFO L357 BasicCegarLoop]: trace histogram [159, 1, 1, 1] [2018-07-23 13:55:18,456 INFO L414 AbstractCegarLoop]: === Iteration 160 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:18,456 INFO L82 PathProgramCache]: Analyzing trace with hash -858027962, now seen corresponding path program 159 times [2018-07-23 13:55:18,456 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:18,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:21,093 INFO L134 CoverageAnalysis]: Checked inductivity of 12720 backedges. 0 proven. 12720 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:21,093 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:21,093 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [161] total 161 [2018-07-23 13:55:21,093 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:21,093 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 13:55:21,094 INFO L185 omatonBuilderFactory]: Interpolants [67119#true, 67121#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 67120#false, 67123#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 67122#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 67125#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 67124#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 67127#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 67126#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 67129#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 67128#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 67131#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 67130#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 67133#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 67132#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 67135#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 67134#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 67137#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 67136#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 67139#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 67138#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 67141#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 67140#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 67143#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 67142#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 67145#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 67144#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 67147#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 67146#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 67149#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 67148#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 67151#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 67150#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 67153#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 67152#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 67155#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 67154#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 67157#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 67156#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 67159#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 67158#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 67161#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 67160#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 67163#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 67162#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 67165#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 67164#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 67167#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 67166#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 67169#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 67168#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 67171#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 67170#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 67173#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 67172#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 67175#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 67174#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 67177#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 67176#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 67179#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 67178#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 67181#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 67180#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 67183#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 67182#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 67185#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 67184#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 67187#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 67186#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 67189#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 67188#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 67191#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 67190#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 67193#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 67192#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 67195#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 67194#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 67197#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 67196#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 67199#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 67198#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 67201#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 67200#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 67203#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 67202#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 67205#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 67204#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 67207#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 67206#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 67209#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 67208#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 67211#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 67210#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 67213#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 67212#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 67215#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 67214#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 67217#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 67216#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 67219#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 67218#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 67221#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 67220#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 67223#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 67222#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 67225#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 67224#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 67227#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 67226#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 67229#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 67228#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 67231#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 67230#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 67233#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 67232#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 67235#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 67234#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 67237#(and (<= (select main_a main_x) 116) (not (= main_x main_y))), 67236#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 67239#(and (not (= main_x main_y)) (<= (select main_a main_x) 118)), 67238#(and (not (= main_x main_y)) (<= (select main_a main_x) 117)), 67241#(and (<= (select main_a main_x) 120) (not (= main_x main_y))), 67240#(and (not (= main_x main_y)) (<= (select main_a main_x) 119)), 67243#(and (not (= main_x main_y)) (<= (select main_a main_x) 122)), 67242#(and (not (= main_x main_y)) (<= (select main_a main_x) 121)), 67245#(and (not (= main_x main_y)) (<= (select main_a main_x) 124)), 67244#(and (not (= main_x main_y)) (<= (select main_a main_x) 123)), 67247#(and (not (= main_x main_y)) (<= (select main_a main_x) 126)), 67246#(and (not (= main_x main_y)) (<= (select main_a main_x) 125)), 67249#(and (not (= main_x main_y)) (<= (select main_a main_x) 128)), 67248#(and (<= (select main_a main_x) 127) (not (= main_x main_y))), 67251#(and (not (= main_x main_y)) (<= (select main_a main_x) 130)), 67250#(and (not (= main_x main_y)) (<= (select main_a main_x) 129)), 67253#(and (<= (select main_a main_x) 132) (not (= main_x main_y))), 67252#(and (<= (select main_a main_x) 131) (not (= main_x main_y))), 67255#(and (not (= main_x main_y)) (<= (select main_a main_x) 134)), 67254#(and (not (= main_x main_y)) (<= (select main_a main_x) 133)), 67257#(and (<= (select main_a main_x) 136) (not (= main_x main_y))), 67256#(and (not (= main_x main_y)) (<= (select main_a main_x) 135)), 67259#(and (not (= main_x main_y)) (<= (select main_a main_x) 138)), 67258#(and (<= (select main_a main_x) 137) (not (= main_x main_y))), 67261#(and (not (= main_x main_y)) (<= (select main_a main_x) 140)), 67260#(and (not (= main_x main_y)) (<= (select main_a main_x) 139)), 67263#(and (not (= main_x main_y)) (<= (select main_a main_x) 142)), 67262#(and (<= (select main_a main_x) 141) (not (= main_x main_y))), 67265#(and (<= (select main_a main_x) 144) (not (= main_x main_y))), 67264#(and (not (= main_x main_y)) (<= (select main_a main_x) 143)), 67267#(and (<= (select main_a main_x) 146) (not (= main_x main_y))), 67266#(and (not (= main_x main_y)) (<= (select main_a main_x) 145)), 67269#(and (<= (select main_a main_x) 148) (not (= main_x main_y))), 67268#(and (not (= main_x main_y)) (<= (select main_a main_x) 147)), 67271#(and (not (= main_x main_y)) (<= (select main_a main_x) 150)), 67270#(and (not (= main_x main_y)) (<= (select main_a main_x) 149)), 67273#(and (<= (select main_a main_x) 152) (not (= main_x main_y))), 67272#(and (<= (select main_a main_x) 151) (not (= main_x main_y))), 67275#(and (not (= main_x main_y)) (<= (select main_a main_x) 154)), 67274#(and (<= (select main_a main_x) 153) (not (= main_x main_y))), 67277#(and (<= (select main_a main_x) 156) (not (= main_x main_y))), 67276#(and (<= (select main_a main_x) 155) (not (= main_x main_y))), 67279#(and (<= (select main_a main_x) 158) (not (= main_x main_y))), 67278#(and (not (= main_x main_y)) (<= (select main_a main_x) 157)), 67280#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:55:21,095 INFO L134 CoverageAnalysis]: Checked inductivity of 12720 backedges. 0 proven. 12720 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:21,095 INFO L450 AbstractCegarLoop]: Interpolant automaton has 162 states [2018-07-23 13:55:21,097 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 162 interpolants. [2018-07-23 13:55:21,097 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13041, Invalid=13041, Unknown=0, NotChecked=0, Total=26082 [2018-07-23 13:55:21,097 INFO L87 Difference]: Start difference. First operand 163 states and 163 transitions. Second operand 162 states. [2018-07-23 13:55:21,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:21,519 INFO L93 Difference]: Finished difference Result 166 states and 166 transitions. [2018-07-23 13:55:21,519 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 162 states. [2018-07-23 13:55:21,519 INFO L78 Accepts]: Start accepts. Automaton has 162 states. Word has length 162 [2018-07-23 13:55:21,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:21,520 INFO L225 Difference]: With dead ends: 166 [2018-07-23 13:55:21,520 INFO L226 Difference]: Without dead ends: 164 [2018-07-23 13:55:21,522 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 160 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=13041, Invalid=13041, Unknown=0, NotChecked=0, Total=26082 [2018-07-23 13:55:21,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2018-07-23 13:55:21,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2018-07-23 13:55:21,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2018-07-23 13:55:21,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 164 transitions. [2018-07-23 13:55:21,530 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 164 transitions. Word has length 162 [2018-07-23 13:55:21,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:21,530 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 164 transitions. [2018-07-23 13:55:21,530 INFO L472 AbstractCegarLoop]: Interpolant automaton has 162 states. [2018-07-23 13:55:21,530 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 164 transitions. [2018-07-23 13:55:21,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2018-07-23 13:55:21,531 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:21,531 INFO L357 BasicCegarLoop]: trace histogram [160, 1, 1, 1] [2018-07-23 13:55:21,531 INFO L414 AbstractCegarLoop]: === Iteration 161 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:21,531 INFO L82 PathProgramCache]: Analyzing trace with hash -829066912, now seen corresponding path program 160 times [2018-07-23 13:55:21,532 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:21,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:24,415 INFO L134 CoverageAnalysis]: Checked inductivity of 12880 backedges. 0 proven. 12880 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:24,415 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:24,415 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [162] total 162 [2018-07-23 13:55:24,416 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:24,416 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 13:55:24,416 INFO L185 omatonBuilderFactory]: Interpolants [68097#(and (not (= main_x main_y)) (<= (select main_a main_x) 154)), 68096#(and (<= (select main_a main_x) 153) (not (= main_x main_y))), 68099#(and (<= (select main_a main_x) 156) (not (= main_x main_y))), 68098#(and (<= (select main_a main_x) 155) (not (= main_x main_y))), 68101#(and (<= (select main_a main_x) 158) (not (= main_x main_y))), 68100#(and (not (= main_x main_y)) (<= (select main_a main_x) 157)), 68103#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 68102#(and (<= (select main_a main_x) 159) (not (= main_x main_y))), 67941#true, 67943#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 67942#false, 67945#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 67944#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 67947#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 67946#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 67949#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 67948#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 67951#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 67950#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 67953#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 67952#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 67955#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 67954#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 67957#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 67956#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 67959#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 67958#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 67961#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 67960#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 67963#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 67962#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 67965#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 67964#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 67967#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 67966#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 67969#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 67968#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 67971#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 67970#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 67973#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 67972#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 67975#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 67974#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 67977#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 67976#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 67979#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 67978#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 67981#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 67980#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 67983#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 67982#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 67985#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 67984#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 67987#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 67986#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 67989#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 67988#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 67991#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 67990#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 67993#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 67992#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 67995#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 67994#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 67997#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 67996#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 67999#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 67998#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 68001#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 68000#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 68003#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 68002#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 68005#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 68004#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 68007#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 68006#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 68009#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 68008#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 68011#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 68010#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 68013#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 68012#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 68015#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 68014#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 68017#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 68016#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 68019#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 68018#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 68021#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 68020#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 68023#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 68022#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 68025#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 68024#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 68027#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 68026#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 68029#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 68028#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 68031#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 68030#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 68033#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 68032#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 68035#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 68034#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 68037#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 68036#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 68039#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 68038#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 68041#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 68040#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 68043#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 68042#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 68045#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 68044#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 68047#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 68046#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 68049#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 68048#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 68051#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 68050#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 68053#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 68052#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 68055#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 68054#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 68057#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 68056#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 68059#(and (<= (select main_a main_x) 116) (not (= main_x main_y))), 68058#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 68061#(and (not (= main_x main_y)) (<= (select main_a main_x) 118)), 68060#(and (not (= main_x main_y)) (<= (select main_a main_x) 117)), 68063#(and (<= (select main_a main_x) 120) (not (= main_x main_y))), 68062#(and (not (= main_x main_y)) (<= (select main_a main_x) 119)), 68065#(and (not (= main_x main_y)) (<= (select main_a main_x) 122)), 68064#(and (not (= main_x main_y)) (<= (select main_a main_x) 121)), 68067#(and (not (= main_x main_y)) (<= (select main_a main_x) 124)), 68066#(and (not (= main_x main_y)) (<= (select main_a main_x) 123)), 68069#(and (not (= main_x main_y)) (<= (select main_a main_x) 126)), 68068#(and (not (= main_x main_y)) (<= (select main_a main_x) 125)), 68071#(and (not (= main_x main_y)) (<= (select main_a main_x) 128)), 68070#(and (<= (select main_a main_x) 127) (not (= main_x main_y))), 68073#(and (not (= main_x main_y)) (<= (select main_a main_x) 130)), 68072#(and (not (= main_x main_y)) (<= (select main_a main_x) 129)), 68075#(and (<= (select main_a main_x) 132) (not (= main_x main_y))), 68074#(and (<= (select main_a main_x) 131) (not (= main_x main_y))), 68077#(and (not (= main_x main_y)) (<= (select main_a main_x) 134)), 68076#(and (not (= main_x main_y)) (<= (select main_a main_x) 133)), 68079#(and (<= (select main_a main_x) 136) (not (= main_x main_y))), 68078#(and (not (= main_x main_y)) (<= (select main_a main_x) 135)), 68081#(and (not (= main_x main_y)) (<= (select main_a main_x) 138)), 68080#(and (<= (select main_a main_x) 137) (not (= main_x main_y))), 68083#(and (not (= main_x main_y)) (<= (select main_a main_x) 140)), 68082#(and (not (= main_x main_y)) (<= (select main_a main_x) 139)), 68085#(and (not (= main_x main_y)) (<= (select main_a main_x) 142)), 68084#(and (<= (select main_a main_x) 141) (not (= main_x main_y))), 68087#(and (<= (select main_a main_x) 144) (not (= main_x main_y))), 68086#(and (not (= main_x main_y)) (<= (select main_a main_x) 143)), 68089#(and (<= (select main_a main_x) 146) (not (= main_x main_y))), 68088#(and (not (= main_x main_y)) (<= (select main_a main_x) 145)), 68091#(and (<= (select main_a main_x) 148) (not (= main_x main_y))), 68090#(and (not (= main_x main_y)) (<= (select main_a main_x) 147)), 68093#(and (not (= main_x main_y)) (<= (select main_a main_x) 150)), 68092#(and (not (= main_x main_y)) (<= (select main_a main_x) 149)), 68095#(and (<= (select main_a main_x) 152) (not (= main_x main_y))), 68094#(and (<= (select main_a main_x) 151) (not (= main_x main_y)))] [2018-07-23 13:55:24,417 INFO L134 CoverageAnalysis]: Checked inductivity of 12880 backedges. 0 proven. 12880 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:24,417 INFO L450 AbstractCegarLoop]: Interpolant automaton has 163 states [2018-07-23 13:55:24,418 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 163 interpolants. [2018-07-23 13:55:24,419 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13203, Invalid=13203, Unknown=0, NotChecked=0, Total=26406 [2018-07-23 13:55:24,419 INFO L87 Difference]: Start difference. First operand 164 states and 164 transitions. Second operand 163 states. [2018-07-23 13:55:24,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:24,772 INFO L93 Difference]: Finished difference Result 167 states and 167 transitions. [2018-07-23 13:55:24,772 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 163 states. [2018-07-23 13:55:24,772 INFO L78 Accepts]: Start accepts. Automaton has 163 states. Word has length 163 [2018-07-23 13:55:24,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:24,773 INFO L225 Difference]: With dead ends: 167 [2018-07-23 13:55:24,773 INFO L226 Difference]: Without dead ends: 165 [2018-07-23 13:55:24,774 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=13203, Invalid=13203, Unknown=0, NotChecked=0, Total=26406 [2018-07-23 13:55:24,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2018-07-23 13:55:24,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2018-07-23 13:55:24,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2018-07-23 13:55:24,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 165 transitions. [2018-07-23 13:55:24,780 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 165 transitions. Word has length 163 [2018-07-23 13:55:24,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:24,780 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 165 transitions. [2018-07-23 13:55:24,780 INFO L472 AbstractCegarLoop]: Interpolant automaton has 163 states. [2018-07-23 13:55:24,780 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 165 transitions. [2018-07-23 13:55:24,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2018-07-23 13:55:24,780 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:24,781 INFO L357 BasicCegarLoop]: trace histogram [161, 1, 1, 1] [2018-07-23 13:55:24,781 INFO L414 AbstractCegarLoop]: === Iteration 162 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:24,781 INFO L82 PathProgramCache]: Analyzing trace with hash 68725638, now seen corresponding path program 161 times [2018-07-23 13:55:24,781 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:24,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:27,561 INFO L134 CoverageAnalysis]: Checked inductivity of 13041 backedges. 0 proven. 13041 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:27,561 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:27,561 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [163] total 163 [2018-07-23 13:55:27,561 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:27,562 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 13:55:27,562 INFO L185 omatonBuilderFactory]: Interpolants [68865#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 68864#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 68867#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 68866#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 68869#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 68868#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 68871#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 68870#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 68873#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 68872#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 68875#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 68874#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 68877#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 68876#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 68879#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 68878#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 68881#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 68880#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 68883#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 68882#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 68885#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 68884#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 68887#(and (not (= main_x main_y)) (<= (select main_a main_x) 117)), 68886#(and (<= (select main_a main_x) 116) (not (= main_x main_y))), 68889#(and (not (= main_x main_y)) (<= (select main_a main_x) 119)), 68888#(and (not (= main_x main_y)) (<= (select main_a main_x) 118)), 68891#(and (not (= main_x main_y)) (<= (select main_a main_x) 121)), 68890#(and (<= (select main_a main_x) 120) (not (= main_x main_y))), 68893#(and (not (= main_x main_y)) (<= (select main_a main_x) 123)), 68892#(and (not (= main_x main_y)) (<= (select main_a main_x) 122)), 68895#(and (not (= main_x main_y)) (<= (select main_a main_x) 125)), 68894#(and (not (= main_x main_y)) (<= (select main_a main_x) 124)), 68897#(and (<= (select main_a main_x) 127) (not (= main_x main_y))), 68896#(and (not (= main_x main_y)) (<= (select main_a main_x) 126)), 68899#(and (not (= main_x main_y)) (<= (select main_a main_x) 129)), 68898#(and (not (= main_x main_y)) (<= (select main_a main_x) 128)), 68901#(and (<= (select main_a main_x) 131) (not (= main_x main_y))), 68900#(and (not (= main_x main_y)) (<= (select main_a main_x) 130)), 68903#(and (not (= main_x main_y)) (<= (select main_a main_x) 133)), 68902#(and (<= (select main_a main_x) 132) (not (= main_x main_y))), 68905#(and (not (= main_x main_y)) (<= (select main_a main_x) 135)), 68904#(and (not (= main_x main_y)) (<= (select main_a main_x) 134)), 68907#(and (<= (select main_a main_x) 137) (not (= main_x main_y))), 68906#(and (<= (select main_a main_x) 136) (not (= main_x main_y))), 68909#(and (not (= main_x main_y)) (<= (select main_a main_x) 139)), 68908#(and (not (= main_x main_y)) (<= (select main_a main_x) 138)), 68911#(and (<= (select main_a main_x) 141) (not (= main_x main_y))), 68910#(and (not (= main_x main_y)) (<= (select main_a main_x) 140)), 68913#(and (not (= main_x main_y)) (<= (select main_a main_x) 143)), 68912#(and (not (= main_x main_y)) (<= (select main_a main_x) 142)), 68915#(and (not (= main_x main_y)) (<= (select main_a main_x) 145)), 68914#(and (<= (select main_a main_x) 144) (not (= main_x main_y))), 68917#(and (not (= main_x main_y)) (<= (select main_a main_x) 147)), 68916#(and (<= (select main_a main_x) 146) (not (= main_x main_y))), 68919#(and (not (= main_x main_y)) (<= (select main_a main_x) 149)), 68918#(and (<= (select main_a main_x) 148) (not (= main_x main_y))), 68921#(and (<= (select main_a main_x) 151) (not (= main_x main_y))), 68920#(and (not (= main_x main_y)) (<= (select main_a main_x) 150)), 68923#(and (<= (select main_a main_x) 153) (not (= main_x main_y))), 68922#(and (<= (select main_a main_x) 152) (not (= main_x main_y))), 68925#(and (<= (select main_a main_x) 155) (not (= main_x main_y))), 68924#(and (not (= main_x main_y)) (<= (select main_a main_x) 154)), 68927#(and (not (= main_x main_y)) (<= (select main_a main_x) 157)), 68926#(and (<= (select main_a main_x) 156) (not (= main_x main_y))), 68929#(and (<= (select main_a main_x) 159) (not (= main_x main_y))), 68928#(and (<= (select main_a main_x) 158) (not (= main_x main_y))), 68931#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 68930#(and (not (= main_x main_y)) (<= (select main_a main_x) 160)), 68769#false, 68768#true, 68771#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 68770#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 68773#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 68772#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 68775#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 68774#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 68777#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 68776#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 68779#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 68778#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 68781#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 68780#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 68783#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 68782#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 68785#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 68784#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 68787#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 68786#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 68789#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 68788#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 68791#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 68790#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 68793#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 68792#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 68795#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 68794#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 68797#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 68796#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 68799#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 68798#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 68801#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 68800#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 68803#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 68802#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 68805#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 68804#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 68807#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 68806#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 68809#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 68808#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 68811#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 68810#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 68813#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 68812#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 68815#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 68814#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 68817#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 68816#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 68819#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 68818#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 68821#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 68820#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 68823#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 68822#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 68825#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 68824#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 68827#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 68826#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 68829#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 68828#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 68831#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 68830#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 68833#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 68832#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 68835#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 68834#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 68837#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 68836#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 68839#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 68838#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 68841#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 68840#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 68843#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 68842#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 68845#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 68844#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 68847#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 68846#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 68849#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 68848#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 68851#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 68850#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 68853#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 68852#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 68855#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 68854#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 68857#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 68856#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 68859#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 68858#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 68861#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 68860#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 68863#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 68862#(and (not (= main_x main_y)) (<= (select main_a main_x) 92))] [2018-07-23 13:55:27,563 INFO L134 CoverageAnalysis]: Checked inductivity of 13041 backedges. 0 proven. 13041 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:27,563 INFO L450 AbstractCegarLoop]: Interpolant automaton has 164 states [2018-07-23 13:55:27,566 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 164 interpolants. [2018-07-23 13:55:27,567 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13366, Invalid=13366, Unknown=0, NotChecked=0, Total=26732 [2018-07-23 13:55:27,567 INFO L87 Difference]: Start difference. First operand 165 states and 165 transitions. Second operand 164 states. [2018-07-23 13:55:27,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:27,725 INFO L93 Difference]: Finished difference Result 168 states and 168 transitions. [2018-07-23 13:55:27,725 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 164 states. [2018-07-23 13:55:27,725 INFO L78 Accepts]: Start accepts. Automaton has 164 states. Word has length 164 [2018-07-23 13:55:27,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:27,726 INFO L225 Difference]: With dead ends: 168 [2018-07-23 13:55:27,726 INFO L226 Difference]: Without dead ends: 166 [2018-07-23 13:55:27,728 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 162 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=13366, Invalid=13366, Unknown=0, NotChecked=0, Total=26732 [2018-07-23 13:55:27,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2018-07-23 13:55:27,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2018-07-23 13:55:27,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2018-07-23 13:55:27,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 166 transitions. [2018-07-23 13:55:27,738 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 166 transitions. Word has length 164 [2018-07-23 13:55:27,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:27,738 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 166 transitions. [2018-07-23 13:55:27,738 INFO L472 AbstractCegarLoop]: Interpolant automaton has 164 states. [2018-07-23 13:55:27,738 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 166 transitions. [2018-07-23 13:55:27,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2018-07-23 13:55:27,739 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:27,739 INFO L357 BasicCegarLoop]: trace histogram [162, 1, 1, 1] [2018-07-23 13:55:27,739 INFO L414 AbstractCegarLoop]: === Iteration 163 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:27,739 INFO L82 PathProgramCache]: Analyzing trace with hash 2130490912, now seen corresponding path program 162 times [2018-07-23 13:55:27,739 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:28,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:30,533 INFO L134 CoverageAnalysis]: Checked inductivity of 13203 backedges. 0 proven. 13203 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:30,533 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:30,533 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [164] total 164 [2018-07-23 13:55:30,533 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:30,533 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 13:55:30,534 INFO L185 omatonBuilderFactory]: Interpolants [69633#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 69632#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 69635#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 69634#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 69637#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 69636#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 69639#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 69638#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 69641#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 69640#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 69643#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 69642#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 69645#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 69644#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 69647#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 69646#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 69649#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 69648#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 69651#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 69650#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 69653#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 69652#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 69655#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 69654#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 69657#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 69656#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 69659#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 69658#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 69661#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 69660#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 69663#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 69662#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 69665#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 69664#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 69667#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 69666#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 69669#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 69668#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 69671#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 69670#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 69673#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 69672#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 69675#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 69674#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 69677#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 69676#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 69679#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 69678#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 69681#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 69680#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 69683#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 69682#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 69685#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 69684#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 69687#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 69686#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 69689#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 69688#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 69691#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 69690#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 69693#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 69692#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 69695#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 69694#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 69697#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 69696#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 69699#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 69698#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 69701#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 69700#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 69703#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 69702#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 69705#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 69704#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 69707#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 69706#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 69709#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 69708#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 69711#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 69710#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 69713#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 69712#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 69715#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 69714#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 69717#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 69716#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 69719#(and (not (= main_x main_y)) (<= (select main_a main_x) 117)), 69718#(and (<= (select main_a main_x) 116) (not (= main_x main_y))), 69721#(and (not (= main_x main_y)) (<= (select main_a main_x) 119)), 69720#(and (not (= main_x main_y)) (<= (select main_a main_x) 118)), 69723#(and (not (= main_x main_y)) (<= (select main_a main_x) 121)), 69722#(and (<= (select main_a main_x) 120) (not (= main_x main_y))), 69725#(and (not (= main_x main_y)) (<= (select main_a main_x) 123)), 69724#(and (not (= main_x main_y)) (<= (select main_a main_x) 122)), 69727#(and (not (= main_x main_y)) (<= (select main_a main_x) 125)), 69726#(and (not (= main_x main_y)) (<= (select main_a main_x) 124)), 69729#(and (<= (select main_a main_x) 127) (not (= main_x main_y))), 69728#(and (not (= main_x main_y)) (<= (select main_a main_x) 126)), 69731#(and (not (= main_x main_y)) (<= (select main_a main_x) 129)), 69730#(and (not (= main_x main_y)) (<= (select main_a main_x) 128)), 69733#(and (<= (select main_a main_x) 131) (not (= main_x main_y))), 69732#(and (not (= main_x main_y)) (<= (select main_a main_x) 130)), 69735#(and (not (= main_x main_y)) (<= (select main_a main_x) 133)), 69734#(and (<= (select main_a main_x) 132) (not (= main_x main_y))), 69737#(and (not (= main_x main_y)) (<= (select main_a main_x) 135)), 69736#(and (not (= main_x main_y)) (<= (select main_a main_x) 134)), 69739#(and (<= (select main_a main_x) 137) (not (= main_x main_y))), 69738#(and (<= (select main_a main_x) 136) (not (= main_x main_y))), 69741#(and (not (= main_x main_y)) (<= (select main_a main_x) 139)), 69740#(and (not (= main_x main_y)) (<= (select main_a main_x) 138)), 69743#(and (<= (select main_a main_x) 141) (not (= main_x main_y))), 69742#(and (not (= main_x main_y)) (<= (select main_a main_x) 140)), 69745#(and (not (= main_x main_y)) (<= (select main_a main_x) 143)), 69744#(and (not (= main_x main_y)) (<= (select main_a main_x) 142)), 69747#(and (not (= main_x main_y)) (<= (select main_a main_x) 145)), 69746#(and (<= (select main_a main_x) 144) (not (= main_x main_y))), 69749#(and (not (= main_x main_y)) (<= (select main_a main_x) 147)), 69748#(and (<= (select main_a main_x) 146) (not (= main_x main_y))), 69751#(and (not (= main_x main_y)) (<= (select main_a main_x) 149)), 69750#(and (<= (select main_a main_x) 148) (not (= main_x main_y))), 69753#(and (<= (select main_a main_x) 151) (not (= main_x main_y))), 69752#(and (not (= main_x main_y)) (<= (select main_a main_x) 150)), 69755#(and (<= (select main_a main_x) 153) (not (= main_x main_y))), 69754#(and (<= (select main_a main_x) 152) (not (= main_x main_y))), 69757#(and (<= (select main_a main_x) 155) (not (= main_x main_y))), 69756#(and (not (= main_x main_y)) (<= (select main_a main_x) 154)), 69759#(and (not (= main_x main_y)) (<= (select main_a main_x) 157)), 69758#(and (<= (select main_a main_x) 156) (not (= main_x main_y))), 69761#(and (<= (select main_a main_x) 159) (not (= main_x main_y))), 69760#(and (<= (select main_a main_x) 158) (not (= main_x main_y))), 69763#(and (<= (select main_a main_x) 161) (not (= main_x main_y))), 69762#(and (not (= main_x main_y)) (<= (select main_a main_x) 160)), 69764#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 69601#false, 69600#true, 69603#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 69602#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 69605#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 69604#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 69607#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 69606#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 69609#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 69608#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 69611#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 69610#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 69613#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 69612#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 69615#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 69614#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 69617#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 69616#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 69619#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 69618#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 69621#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 69620#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 69623#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 69622#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 69625#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 69624#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 69627#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 69626#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 69629#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 69628#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 69631#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 69630#(and (<= (select main_a main_x) 28) (not (= main_x main_y)))] [2018-07-23 13:55:30,535 INFO L134 CoverageAnalysis]: Checked inductivity of 13203 backedges. 0 proven. 13203 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:30,535 INFO L450 AbstractCegarLoop]: Interpolant automaton has 165 states [2018-07-23 13:55:30,537 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 165 interpolants. [2018-07-23 13:55:30,537 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13530, Invalid=13530, Unknown=0, NotChecked=0, Total=27060 [2018-07-23 13:55:30,537 INFO L87 Difference]: Start difference. First operand 166 states and 166 transitions. Second operand 165 states. [2018-07-23 13:55:30,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:30,907 INFO L93 Difference]: Finished difference Result 169 states and 169 transitions. [2018-07-23 13:55:30,907 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 165 states. [2018-07-23 13:55:30,907 INFO L78 Accepts]: Start accepts. Automaton has 165 states. Word has length 165 [2018-07-23 13:55:30,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:30,908 INFO L225 Difference]: With dead ends: 169 [2018-07-23 13:55:30,908 INFO L226 Difference]: Without dead ends: 167 [2018-07-23 13:55:30,909 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 163 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=13530, Invalid=13530, Unknown=0, NotChecked=0, Total=27060 [2018-07-23 13:55:30,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2018-07-23 13:55:30,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2018-07-23 13:55:30,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2018-07-23 13:55:30,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 167 transitions. [2018-07-23 13:55:30,914 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 167 transitions. Word has length 165 [2018-07-23 13:55:30,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:30,914 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 167 transitions. [2018-07-23 13:55:30,914 INFO L472 AbstractCegarLoop]: Interpolant automaton has 165 states. [2018-07-23 13:55:30,914 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 167 transitions. [2018-07-23 13:55:30,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2018-07-23 13:55:30,915 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:30,915 INFO L357 BasicCegarLoop]: trace histogram [163, 1, 1, 1] [2018-07-23 13:55:30,915 INFO L414 AbstractCegarLoop]: === Iteration 164 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:30,915 INFO L82 PathProgramCache]: Analyzing trace with hash 1620704966, now seen corresponding path program 163 times [2018-07-23 13:55:30,915 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:31,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:33,631 INFO L134 CoverageAnalysis]: Checked inductivity of 13366 backedges. 0 proven. 13366 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:33,631 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:33,631 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [165] total 165 [2018-07-23 13:55:33,631 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:33,632 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 13:55:33,632 INFO L185 omatonBuilderFactory]: Interpolants [70437#true, 70439#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 70438#false, 70441#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 70440#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 70443#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 70442#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 70445#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 70444#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 70447#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 70446#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 70449#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 70448#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 70451#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 70450#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 70453#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 70452#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 70455#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 70454#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 70457#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 70456#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 70459#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 70458#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 70461#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 70460#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 70463#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 70462#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 70465#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 70464#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 70467#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 70466#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 70469#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 70468#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 70471#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 70470#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 70473#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 70472#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 70475#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 70474#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 70477#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 70476#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 70479#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 70478#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 70481#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 70480#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 70483#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 70482#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 70485#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 70484#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 70487#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 70486#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 70489#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 70488#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 70491#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 70490#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 70493#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 70492#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 70495#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 70494#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 70497#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 70496#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 70499#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 70498#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 70501#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 70500#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 70503#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 70502#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 70505#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 70504#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 70507#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 70506#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 70509#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 70508#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 70511#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 70510#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 70513#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 70512#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 70515#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 70514#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 70517#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 70516#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 70519#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 70518#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 70521#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 70520#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 70523#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 70522#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 70525#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 70524#(and (<= (select main_a main_x) 85) (not (= main_x 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(<= (select main_a main_x) 102)), 70540#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 70543#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 70542#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 70545#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 70544#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 70547#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 70546#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 70549#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 70548#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 70551#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 70550#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 70553#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 70552#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 70555#(and (<= (select main_a main_x) 116) (not (= main_x main_y))), 70554#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 70557#(and (not (= main_x main_y)) (<= (select main_a main_x) 118)), 70556#(and (not (= main_x main_y)) (<= (select main_a main_x) 117)), 70559#(and (<= (select main_a main_x) 120) (not (= main_x main_y))), 70558#(and (not (= main_x main_y)) (<= (select main_a main_x) 119)), 70561#(and (not (= main_x main_y)) (<= (select main_a main_x) 122)), 70560#(and (not (= main_x main_y)) (<= (select main_a main_x) 121)), 70563#(and (not (= main_x main_y)) (<= (select main_a main_x) 124)), 70562#(and (not (= main_x main_y)) (<= (select main_a main_x) 123)), 70565#(and (not (= main_x main_y)) (<= (select main_a main_x) 126)), 70564#(and (not (= main_x main_y)) (<= (select main_a main_x) 125)), 70567#(and (not (= main_x main_y)) (<= (select main_a main_x) 128)), 70566#(and (<= (select main_a main_x) 127) (not (= main_x main_y))), 70569#(and (not (= main_x main_y)) (<= (select main_a main_x) 130)), 70568#(and (not (= main_x main_y)) (<= (select main_a main_x) 129)), 70571#(and (<= (select main_a main_x) 132) (not (= main_x main_y))), 70570#(and (<= (select main_a main_x) 131) (not (= main_x main_y))), 70573#(and (not (= main_x main_y)) (<= (select main_a main_x) 134)), 70572#(and (not (= main_x main_y)) (<= (select main_a main_x) 133)), 70575#(and (<= (select main_a main_x) 136) (not (= main_x main_y))), 70574#(and (not (= main_x main_y)) (<= (select main_a main_x) 135)), 70577#(and (not (= main_x main_y)) (<= (select main_a main_x) 138)), 70576#(and (<= (select main_a main_x) 137) (not (= main_x main_y))), 70579#(and (not (= main_x main_y)) (<= (select main_a main_x) 140)), 70578#(and (not (= main_x main_y)) (<= (select main_a main_x) 139)), 70581#(and (not (= main_x main_y)) (<= (select main_a main_x) 142)), 70580#(and (<= (select main_a main_x) 141) (not (= main_x main_y))), 70583#(and (<= (select main_a main_x) 144) (not (= main_x main_y))), 70582#(and (not (= main_x main_y)) (<= (select main_a main_x) 143)), 70585#(and (<= (select main_a main_x) 146) (not (= main_x main_y))), 70584#(and (not (= main_x main_y)) (<= (select main_a main_x) 145)), 70587#(and (<= (select main_a main_x) 148) (not (= main_x main_y))), 70586#(and (not (= main_x main_y)) (<= (select main_a main_x) 147)), 70589#(and (not (= main_x main_y)) (<= (select main_a main_x) 150)), 70588#(and (not (= main_x main_y)) (<= (select main_a main_x) 149)), 70591#(and (<= (select main_a main_x) 152) (not (= main_x main_y))), 70590#(and (<= (select main_a main_x) 151) (not (= main_x main_y))), 70593#(and (not (= main_x main_y)) (<= (select main_a main_x) 154)), 70592#(and (<= (select main_a main_x) 153) (not (= main_x main_y))), 70595#(and (<= (select main_a main_x) 156) (not (= main_x main_y))), 70594#(and (<= (select main_a main_x) 155) (not (= main_x main_y))), 70597#(and (<= (select main_a main_x) 158) (not (= main_x main_y))), 70596#(and (not (= main_x main_y)) (<= (select main_a main_x) 157)), 70599#(and (not (= main_x main_y)) (<= (select main_a main_x) 160)), 70598#(and (<= (select main_a main_x) 159) (not (= main_x main_y))), 70601#(and (not (= main_x main_y)) (<= (select main_a main_x) 162)), 70600#(and (<= (select main_a main_x) 161) (not (= main_x main_y))), 70602#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:55:33,633 INFO L134 CoverageAnalysis]: Checked inductivity of 13366 backedges. 0 proven. 13366 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:33,633 INFO L450 AbstractCegarLoop]: Interpolant automaton has 166 states [2018-07-23 13:55:33,635 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 166 interpolants. [2018-07-23 13:55:33,635 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13695, Invalid=13695, Unknown=0, NotChecked=0, Total=27390 [2018-07-23 13:55:33,635 INFO L87 Difference]: Start difference. First operand 167 states and 167 transitions. Second operand 166 states. [2018-07-23 13:55:34,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:34,101 INFO L93 Difference]: Finished difference Result 170 states and 170 transitions. [2018-07-23 13:55:34,101 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 166 states. [2018-07-23 13:55:34,101 INFO L78 Accepts]: Start accepts. Automaton has 166 states. Word has length 166 [2018-07-23 13:55:34,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:34,102 INFO L225 Difference]: With dead ends: 170 [2018-07-23 13:55:34,102 INFO L226 Difference]: Without dead ends: 168 [2018-07-23 13:55:34,103 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 164 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=13695, Invalid=13695, Unknown=0, NotChecked=0, Total=27390 [2018-07-23 13:55:34,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2018-07-23 13:55:34,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2018-07-23 13:55:34,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2018-07-23 13:55:34,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 168 transitions. [2018-07-23 13:55:34,108 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 168 transitions. Word has length 166 [2018-07-23 13:55:34,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:34,108 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 168 transitions. [2018-07-23 13:55:34,108 INFO L472 AbstractCegarLoop]: Interpolant automaton has 166 states. [2018-07-23 13:55:34,109 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 168 transitions. [2018-07-23 13:55:34,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2018-07-23 13:55:34,109 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:34,109 INFO L357 BasicCegarLoop]: trace histogram [164, 1, 1, 1] [2018-07-23 13:55:34,109 INFO L414 AbstractCegarLoop]: === Iteration 165 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:34,109 INFO L82 PathProgramCache]: Analyzing trace with hash -1297757472, now seen corresponding path program 164 times [2018-07-23 13:55:34,109 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:34,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:36,921 INFO L134 CoverageAnalysis]: Checked inductivity of 13530 backedges. 0 proven. 13530 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:36,922 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:36,922 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [166] total 166 [2018-07-23 13:55:36,922 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:36,922 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 13:55:36,922 INFO L185 omatonBuilderFactory]: Interpolants [71425#(and (<= (select main_a main_x) 144) (not (= main_x main_y))), 71424#(and (not (= main_x main_y)) (<= (select main_a main_x) 143)), 71427#(and (<= (select main_a main_x) 146) (not (= main_x main_y))), 71426#(and (not (= main_x main_y)) (<= (select main_a main_x) 145)), 71429#(and (<= (select main_a main_x) 148) (not (= main_x main_y))), 71428#(and (not (= main_x main_y)) (<= (select main_a main_x) 147)), 71431#(and (not (= main_x main_y)) (<= (select main_a main_x) 150)), 71430#(and (not (= main_x main_y)) (<= (select main_a main_x) 149)), 71433#(and (<= (select main_a main_x) 152) (not (= main_x main_y))), 71432#(and (<= (select main_a main_x) 151) (not (= main_x main_y))), 71435#(and (not (= main_x main_y)) (<= (select main_a main_x) 154)), 71434#(and (<= (select main_a main_x) 153) (not (= main_x main_y))), 71437#(and (<= (select main_a main_x) 156) (not (= main_x main_y))), 71436#(and (<= (select main_a main_x) 155) (not (= main_x main_y))), 71439#(and (<= (select main_a main_x) 158) (not (= main_x main_y))), 71438#(and (not (= main_x main_y)) (<= (select main_a main_x) 157)), 71441#(and (not (= main_x main_y)) (<= (select main_a main_x) 160)), 71440#(and (<= (select main_a main_x) 159) (not (= main_x main_y))), 71443#(and (not (= main_x main_y)) (<= (select main_a main_x) 162)), 71442#(and (<= (select main_a main_x) 161) (not (= main_x main_y))), 71445#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 71444#(and (<= (select main_a main_x) 163) (not (= main_x main_y))), 71279#true, 71281#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 71280#false, 71283#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 71282#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 71285#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 71284#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 71287#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 71286#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 71289#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 71288#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 71291#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 71290#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 71293#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 71292#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 71295#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 71294#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 71297#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 71296#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 71299#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 71298#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 71301#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 71300#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 71303#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 71302#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 71305#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 71304#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 71307#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 71306#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 71309#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 71308#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 71311#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 71310#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 71313#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 71312#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 71315#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 71314#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 71317#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 71316#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 71319#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 71318#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 71321#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 71320#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 71323#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 71322#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 71325#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 71324#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 71327#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 71326#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 71329#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 71328#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 71331#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 71330#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 71333#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 71332#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 71335#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 71334#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 71337#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 71336#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 71339#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 71338#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 71341#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 71340#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 71343#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 71342#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 71345#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 71344#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 71347#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 71346#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 71349#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 71348#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 71351#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 71350#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 71353#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 71352#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 71355#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 71354#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 71357#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 71356#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 71359#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 71358#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 71361#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 71360#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 71363#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 71362#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 71365#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 71364#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 71367#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 71366#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 71369#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 71368#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 71371#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 71370#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 71373#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 71372#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 71375#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 71374#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 71377#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 71376#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 71379#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 71378#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 71381#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 71380#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 71383#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 71382#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 71385#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 71384#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 71387#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 71386#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 71389#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 71388#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 71391#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 71390#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 71393#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 71392#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 71395#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 71394#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 71397#(and (<= (select main_a main_x) 116) (not (= main_x main_y))), 71396#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 71399#(and (not (= main_x main_y)) (<= (select main_a main_x) 118)), 71398#(and (not (= main_x main_y)) (<= (select main_a main_x) 117)), 71401#(and (<= (select main_a main_x) 120) (not (= main_x main_y))), 71400#(and (not (= main_x main_y)) (<= (select main_a main_x) 119)), 71403#(and (not (= main_x main_y)) (<= (select main_a main_x) 122)), 71402#(and (not (= main_x main_y)) (<= (select main_a main_x) 121)), 71405#(and (not (= main_x main_y)) (<= (select main_a main_x) 124)), 71404#(and (not (= main_x main_y)) (<= (select main_a main_x) 123)), 71407#(and (not (= main_x main_y)) (<= (select main_a main_x) 126)), 71406#(and (not (= main_x main_y)) (<= (select main_a main_x) 125)), 71409#(and (not (= main_x main_y)) (<= (select main_a main_x) 128)), 71408#(and (<= (select main_a main_x) 127) (not (= main_x main_y))), 71411#(and (not (= main_x main_y)) (<= (select main_a main_x) 130)), 71410#(and (not (= main_x main_y)) (<= (select main_a main_x) 129)), 71413#(and (<= (select main_a main_x) 132) (not (= main_x main_y))), 71412#(and (<= (select main_a main_x) 131) (not (= main_x main_y))), 71415#(and (not (= main_x main_y)) (<= (select main_a main_x) 134)), 71414#(and (not (= main_x main_y)) (<= (select main_a main_x) 133)), 71417#(and (<= (select main_a main_x) 136) (not (= main_x main_y))), 71416#(and (not (= main_x main_y)) (<= (select main_a main_x) 135)), 71419#(and (not (= main_x main_y)) (<= (select main_a main_x) 138)), 71418#(and (<= (select main_a main_x) 137) (not (= main_x main_y))), 71421#(and (not (= main_x main_y)) (<= (select main_a main_x) 140)), 71420#(and (not (= main_x main_y)) (<= (select main_a main_x) 139)), 71423#(and (not (= main_x main_y)) (<= (select main_a main_x) 142)), 71422#(and (<= (select main_a main_x) 141) (not (= main_x main_y)))] [2018-07-23 13:55:36,923 INFO L134 CoverageAnalysis]: Checked inductivity of 13530 backedges. 0 proven. 13530 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:36,923 INFO L450 AbstractCegarLoop]: Interpolant automaton has 167 states [2018-07-23 13:55:36,924 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 167 interpolants. [2018-07-23 13:55:36,925 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13861, Invalid=13861, Unknown=0, NotChecked=0, Total=27722 [2018-07-23 13:55:36,925 INFO L87 Difference]: Start difference. First operand 168 states and 168 transitions. Second operand 167 states. [2018-07-23 13:55:37,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:37,237 INFO L93 Difference]: Finished difference Result 171 states and 171 transitions. [2018-07-23 13:55:37,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2018-07-23 13:55:37,237 INFO L78 Accepts]: Start accepts. Automaton has 167 states. Word has length 167 [2018-07-23 13:55:37,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:37,237 INFO L225 Difference]: With dead ends: 171 [2018-07-23 13:55:37,237 INFO L226 Difference]: Without dead ends: 169 [2018-07-23 13:55:37,238 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 165 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=13861, Invalid=13861, Unknown=0, NotChecked=0, Total=27722 [2018-07-23 13:55:37,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2018-07-23 13:55:37,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2018-07-23 13:55:37,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2018-07-23 13:55:37,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 169 transitions. [2018-07-23 13:55:37,243 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 169 transitions. Word has length 167 [2018-07-23 13:55:37,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:37,243 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 169 transitions. [2018-07-23 13:55:37,243 INFO L472 AbstractCegarLoop]: Interpolant automaton has 167 states. [2018-07-23 13:55:37,243 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 169 transitions. [2018-07-23 13:55:37,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2018-07-23 13:55:37,244 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:37,244 INFO L357 BasicCegarLoop]: trace histogram [165, 1, 1, 1] [2018-07-23 13:55:37,244 INFO L414 AbstractCegarLoop]: === Iteration 166 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:37,244 INFO L82 PathProgramCache]: Analyzing trace with hash -1575779834, now seen corresponding path program 165 times [2018-07-23 13:55:37,244 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:37,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:40,016 INFO L134 CoverageAnalysis]: Checked inductivity of 13695 backedges. 0 proven. 13695 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:40,017 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:40,017 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [167] total 167 [2018-07-23 13:55:40,017 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:40,017 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 13:55:40,018 INFO L185 omatonBuilderFactory]: Interpolants [72193#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 72192#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 72195#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 72194#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 72197#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 72196#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 72199#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 72198#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 72201#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 72200#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 72203#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 72202#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 72205#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 72204#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 72207#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 72206#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 72209#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 72208#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 72211#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 72210#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 72213#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 72212#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 72215#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 72214#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 72217#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 72216#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 72219#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 72218#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 72221#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 72220#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 72223#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 72222#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 72225#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 72224#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 72227#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 72226#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 72229#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 72228#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 72231#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 72230#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 72233#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 72232#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 72235#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 72234#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 72237#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 72236#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 72239#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 72238#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 72241#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 72240#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 72243#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 72242#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 72245#(and (not (= main_x main_y)) (<= (select main_a main_x) 117)), 72244#(and (<= (select main_a main_x) 116) (not (= main_x main_y))), 72247#(and (not (= main_x main_y)) (<= (select main_a main_x) 119)), 72246#(and (not (= main_x main_y)) (<= (select main_a main_x) 118)), 72249#(and (not (= main_x main_y)) (<= (select main_a main_x) 121)), 72248#(and (<= (select main_a main_x) 120) (not (= main_x main_y))), 72251#(and (not (= main_x main_y)) (<= (select main_a main_x) 123)), 72250#(and (not (= main_x main_y)) (<= (select main_a main_x) 122)), 72253#(and (not (= main_x main_y)) (<= (select main_a main_x) 125)), 72252#(and (not (= main_x main_y)) (<= (select main_a main_x) 124)), 72255#(and (<= (select main_a main_x) 127) (not (= main_x main_y))), 72254#(and (not (= main_x main_y)) (<= (select main_a main_x) 126)), 72257#(and (not (= main_x main_y)) (<= (select main_a main_x) 129)), 72256#(and (not (= main_x main_y)) (<= (select main_a main_x) 128)), 72259#(and (<= (select main_a main_x) 131) (not (= main_x main_y))), 72258#(and (not (= main_x main_y)) (<= (select main_a main_x) 130)), 72261#(and (not (= main_x main_y)) (<= (select main_a main_x) 133)), 72260#(and (<= (select main_a main_x) 132) (not (= main_x main_y))), 72263#(and (not (= main_x main_y)) (<= (select main_a main_x) 135)), 72262#(and (not (= main_x main_y)) (<= (select main_a main_x) 134)), 72265#(and (<= (select main_a main_x) 137) (not (= main_x main_y))), 72264#(and (<= (select main_a main_x) 136) (not (= main_x main_y))), 72267#(and (not (= main_x main_y)) (<= (select main_a main_x) 139)), 72266#(and (not (= main_x main_y)) (<= (select main_a main_x) 138)), 72269#(and (<= (select main_a main_x) 141) (not (= main_x main_y))), 72268#(and (not (= main_x main_y)) (<= (select main_a main_x) 140)), 72271#(and (not (= main_x main_y)) (<= (select main_a main_x) 143)), 72270#(and (not (= main_x main_y)) (<= (select main_a main_x) 142)), 72273#(and (not (= main_x main_y)) (<= (select main_a main_x) 145)), 72272#(and (<= (select main_a main_x) 144) (not (= main_x main_y))), 72275#(and (not (= main_x main_y)) (<= (select main_a main_x) 147)), 72274#(and (<= (select main_a main_x) 146) (not (= main_x main_y))), 72277#(and (not (= main_x main_y)) (<= (select main_a main_x) 149)), 72276#(and (<= (select main_a main_x) 148) (not (= main_x main_y))), 72279#(and (<= (select main_a main_x) 151) (not (= main_x main_y))), 72278#(and (not (= main_x main_y)) (<= (select main_a main_x) 150)), 72281#(and (<= (select main_a main_x) 153) (not (= main_x main_y))), 72280#(and (<= (select main_a main_x) 152) (not (= main_x main_y))), 72283#(and (<= (select main_a main_x) 155) (not (= main_x main_y))), 72282#(and (not (= main_x main_y)) (<= (select main_a main_x) 154)), 72285#(and (not (= main_x main_y)) (<= (select main_a main_x) 157)), 72284#(and (<= (select main_a main_x) 156) (not (= main_x main_y))), 72287#(and (<= (select main_a main_x) 159) (not (= main_x main_y))), 72286#(and (<= (select main_a main_x) 158) (not (= main_x main_y))), 72289#(and (<= (select main_a main_x) 161) (not (= main_x main_y))), 72288#(and (not (= main_x main_y)) (<= (select main_a main_x) 160)), 72291#(and (<= (select main_a main_x) 163) (not (= main_x main_y))), 72290#(and (not (= main_x main_y)) (<= (select main_a main_x) 162)), 72293#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 72292#(and (<= (select main_a main_x) 164) (not (= main_x main_y))), 72127#false, 72126#true, 72129#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 72128#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 72131#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 72130#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 72133#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 72132#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 72135#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 72134#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 72137#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 72136#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 72139#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 72138#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 72141#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 72140#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 72143#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 72142#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 72145#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 72144#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 72147#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 72146#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 72149#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 72148#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 72151#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 72150#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 72153#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 72152#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 72155#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 72154#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 72157#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 72156#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 72159#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 72158#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 72161#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 72160#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 72163#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 72162#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 72165#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 72164#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 72167#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 72166#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 72169#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 72168#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 72171#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 72170#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 72173#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 72172#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 72175#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 72174#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 72177#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 72176#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 72179#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 72178#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 72181#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 72180#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 72183#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 72182#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 72185#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 72184#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 72187#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 72186#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 72189#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 72188#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 72191#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 72190#(and (not (= main_x main_y)) (<= (select main_a main_x) 62))] [2018-07-23 13:55:40,019 INFO L134 CoverageAnalysis]: Checked inductivity of 13695 backedges. 0 proven. 13695 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:40,019 INFO L450 AbstractCegarLoop]: Interpolant automaton has 168 states [2018-07-23 13:55:40,021 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 168 interpolants. [2018-07-23 13:55:40,022 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14028, Invalid=14028, Unknown=0, NotChecked=0, Total=28056 [2018-07-23 13:55:40,022 INFO L87 Difference]: Start difference. First operand 169 states and 169 transitions. Second operand 168 states. [2018-07-23 13:55:40,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:40,256 INFO L93 Difference]: Finished difference Result 172 states and 172 transitions. [2018-07-23 13:55:40,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 168 states. [2018-07-23 13:55:40,256 INFO L78 Accepts]: Start accepts. Automaton has 168 states. Word has length 168 [2018-07-23 13:55:40,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:40,257 INFO L225 Difference]: With dead ends: 172 [2018-07-23 13:55:40,257 INFO L226 Difference]: Without dead ends: 170 [2018-07-23 13:55:40,258 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 166 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=14028, Invalid=14028, Unknown=0, NotChecked=0, Total=28056 [2018-07-23 13:55:40,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2018-07-23 13:55:40,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2018-07-23 13:55:40,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2018-07-23 13:55:40,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 170 transitions. [2018-07-23 13:55:40,265 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 170 transitions. Word has length 168 [2018-07-23 13:55:40,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:40,265 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 170 transitions. [2018-07-23 13:55:40,265 INFO L472 AbstractCegarLoop]: Interpolant automaton has 168 states. [2018-07-23 13:55:40,265 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 170 transitions. [2018-07-23 13:55:40,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2018-07-23 13:55:40,266 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:40,266 INFO L357 BasicCegarLoop]: trace histogram [166, 1, 1, 1] [2018-07-23 13:55:40,266 INFO L414 AbstractCegarLoop]: === Iteration 167 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:40,267 INFO L82 PathProgramCache]: Analyzing trace with hash -1604538464, now seen corresponding path program 166 times [2018-07-23 13:55:40,267 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:40,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:43,121 INFO L134 CoverageAnalysis]: Checked inductivity of 13861 backedges. 0 proven. 13861 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:43,122 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:43,122 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [168] total 168 [2018-07-23 13:55:43,122 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:43,122 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 13:55:43,122 INFO L185 omatonBuilderFactory]: Interpolants [72979#false, 72978#true, 72981#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 72980#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 72983#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 72982#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 72985#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 72984#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 72987#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 72986#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 72989#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 72988#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 72991#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 72990#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 72993#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 72992#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 72995#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 72994#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 72997#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 72996#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 72999#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 72998#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 73001#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 73000#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 73003#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 73002#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 73005#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 73004#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 73007#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 73006#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 73009#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 73008#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 73011#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 73010#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 73013#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 73012#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 73015#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 73014#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 73017#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 73016#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 73019#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 73018#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 73021#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 73020#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 73023#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 73022#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 73025#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 73024#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 73027#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 73026#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 73029#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 73028#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 73031#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 73030#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 73033#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 73032#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 73035#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 73034#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 73037#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 73036#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 73039#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 73038#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 73041#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 73040#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 73043#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 73042#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 73045#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 73044#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 73047#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 73046#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 73049#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 73048#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 73051#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 73050#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 73053#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 73052#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 73055#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 73054#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 73057#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 73056#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 73059#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 73058#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 73061#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 73060#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 73063#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 73062#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 73065#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 73064#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 73067#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 73066#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 73069#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 73068#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 73071#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 73070#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 73073#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 73072#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 73075#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 73074#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 73077#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 73076#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 73079#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 73078#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 73081#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 73080#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 73083#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 73082#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 73085#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 73084#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 73087#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 73086#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 73089#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 73088#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 73091#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 73090#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 73093#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 73092#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 73095#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 73094#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 73097#(and (not (= main_x main_y)) (<= (select main_a main_x) 117)), 73096#(and (<= (select main_a main_x) 116) (not (= main_x main_y))), 73099#(and (not (= main_x main_y)) (<= (select main_a main_x) 119)), 73098#(and (not (= main_x main_y)) (<= (select main_a main_x) 118)), 73101#(and (not (= main_x main_y)) (<= (select main_a main_x) 121)), 73100#(and (<= (select main_a main_x) 120) (not (= main_x main_y))), 73103#(and (not (= main_x main_y)) (<= (select main_a main_x) 123)), 73102#(and (not (= main_x main_y)) (<= (select main_a main_x) 122)), 73105#(and (not (= main_x main_y)) (<= (select main_a main_x) 125)), 73104#(and (not (= main_x main_y)) (<= (select main_a main_x) 124)), 73107#(and (<= (select main_a main_x) 127) (not (= main_x main_y))), 73106#(and (not (= main_x main_y)) (<= (select main_a main_x) 126)), 73109#(and (not (= main_x main_y)) (<= (select main_a main_x) 129)), 73108#(and (not (= main_x main_y)) (<= (select main_a main_x) 128)), 73111#(and (<= (select main_a main_x) 131) (not (= main_x main_y))), 73110#(and (not (= main_x main_y)) (<= (select main_a main_x) 130)), 73113#(and (not (= main_x main_y)) (<= (select main_a main_x) 133)), 73112#(and (<= (select main_a main_x) 132) (not (= main_x main_y))), 73115#(and (not (= main_x main_y)) (<= (select main_a main_x) 135)), 73114#(and (not (= main_x main_y)) (<= (select main_a main_x) 134)), 73117#(and (<= (select main_a main_x) 137) (not (= main_x main_y))), 73116#(and (<= (select main_a main_x) 136) (not (= main_x main_y))), 73119#(and (not (= main_x main_y)) (<= (select main_a main_x) 139)), 73118#(and (not (= main_x main_y)) (<= (select main_a main_x) 138)), 73121#(and (<= (select main_a main_x) 141) (not (= main_x main_y))), 73120#(and (not (= main_x main_y)) (<= (select main_a main_x) 140)), 73123#(and (not (= main_x main_y)) (<= (select main_a main_x) 143)), 73122#(and (not (= main_x main_y)) (<= (select main_a main_x) 142)), 73125#(and (not (= main_x main_y)) (<= (select main_a main_x) 145)), 73124#(and (<= (select main_a main_x) 144) (not (= main_x main_y))), 73127#(and (not (= main_x main_y)) (<= (select main_a main_x) 147)), 73126#(and (<= (select main_a main_x) 146) (not (= main_x main_y))), 73129#(and (not (= main_x main_y)) (<= (select main_a main_x) 149)), 73128#(and (<= (select main_a main_x) 148) (not (= main_x main_y))), 73131#(and (<= (select main_a main_x) 151) (not (= main_x main_y))), 73130#(and (not (= main_x main_y)) (<= (select main_a main_x) 150)), 73133#(and (<= (select main_a main_x) 153) (not (= main_x main_y))), 73132#(and (<= (select main_a main_x) 152) (not (= main_x main_y))), 73135#(and (<= (select main_a main_x) 155) (not (= main_x main_y))), 73134#(and (not (= main_x main_y)) (<= (select main_a main_x) 154)), 73137#(and (not (= main_x main_y)) (<= (select main_a main_x) 157)), 73136#(and (<= (select main_a main_x) 156) (not (= main_x main_y))), 73139#(and (<= (select main_a main_x) 159) (not (= main_x main_y))), 73138#(and (<= (select main_a main_x) 158) (not (= main_x main_y))), 73141#(and (<= (select main_a main_x) 161) (not (= main_x main_y))), 73140#(and (not (= main_x main_y)) (<= (select main_a main_x) 160)), 73143#(and (<= (select main_a main_x) 163) (not (= main_x main_y))), 73142#(and (not (= main_x main_y)) (<= (select main_a main_x) 162)), 73145#(and (<= (select main_a main_x) 165) (not (= main_x main_y))), 73144#(and (<= (select main_a main_x) 164) (not (= main_x main_y))), 73146#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:55:43,123 INFO L134 CoverageAnalysis]: Checked inductivity of 13861 backedges. 0 proven. 13861 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:43,124 INFO L450 AbstractCegarLoop]: Interpolant automaton has 169 states [2018-07-23 13:55:43,126 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 169 interpolants. [2018-07-23 13:55:43,127 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14196, Invalid=14196, Unknown=0, NotChecked=0, Total=28392 [2018-07-23 13:55:43,127 INFO L87 Difference]: Start difference. First operand 170 states and 170 transitions. Second operand 169 states. [2018-07-23 13:55:43,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:43,613 INFO L93 Difference]: Finished difference Result 173 states and 173 transitions. [2018-07-23 13:55:43,613 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 169 states. [2018-07-23 13:55:43,613 INFO L78 Accepts]: Start accepts. Automaton has 169 states. Word has length 169 [2018-07-23 13:55:43,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:43,614 INFO L225 Difference]: With dead ends: 173 [2018-07-23 13:55:43,614 INFO L226 Difference]: Without dead ends: 171 [2018-07-23 13:55:43,615 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 167 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=14196, Invalid=14196, Unknown=0, NotChecked=0, Total=28392 [2018-07-23 13:55:43,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2018-07-23 13:55:43,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2018-07-23 13:55:43,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2018-07-23 13:55:43,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 171 transitions. [2018-07-23 13:55:43,621 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 171 transitions. Word has length 169 [2018-07-23 13:55:43,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:43,621 INFO L471 AbstractCegarLoop]: Abstraction has 171 states and 171 transitions. [2018-07-23 13:55:43,621 INFO L472 AbstractCegarLoop]: Interpolant automaton has 169 states. [2018-07-23 13:55:43,621 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 171 transitions. [2018-07-23 13:55:43,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2018-07-23 13:55:43,621 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:43,621 INFO L357 BasicCegarLoop]: trace histogram [167, 1, 1, 1] [2018-07-23 13:55:43,622 INFO L414 AbstractCegarLoop]: === Iteration 168 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:43,622 INFO L82 PathProgramCache]: Analyzing trace with hash 1798911302, now seen corresponding path program 167 times [2018-07-23 13:55:43,622 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:43,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:46,500 INFO L134 CoverageAnalysis]: Checked inductivity of 14028 backedges. 0 proven. 14028 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:46,500 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:46,500 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [169] total 169 [2018-07-23 13:55:46,501 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:46,501 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 13:55:46,501 INFO L185 omatonBuilderFactory]: Interpolants [73985#(and (<= (select main_a main_x) 148) (not (= main_x main_y))), 73984#(and (not (= main_x main_y)) (<= (select main_a main_x) 147)), 73987#(and (not (= main_x main_y)) (<= (select main_a main_x) 150)), 73986#(and (not (= main_x main_y)) (<= (select main_a main_x) 149)), 73989#(and (<= (select main_a main_x) 152) (not (= main_x main_y))), 73988#(and (<= (select main_a main_x) 151) (not (= main_x main_y))), 73991#(and (not (= main_x main_y)) (<= (select main_a main_x) 154)), 73990#(and (<= (select main_a main_x) 153) (not (= main_x main_y))), 73993#(and (<= (select main_a main_x) 156) (not (= main_x main_y))), 73992#(and (<= (select main_a main_x) 155) (not (= main_x main_y))), 73995#(and (<= (select main_a main_x) 158) (not (= main_x main_y))), 73994#(and (not (= main_x main_y)) (<= (select main_a main_x) 157)), 73997#(and (not (= main_x main_y)) (<= (select main_a main_x) 160)), 73996#(and (<= (select main_a main_x) 159) (not (= main_x main_y))), 73999#(and (not (= main_x main_y)) (<= (select main_a main_x) 162)), 73998#(and (<= (select main_a main_x) 161) (not (= main_x main_y))), 74001#(and (<= (select main_a main_x) 164) (not (= main_x main_y))), 74000#(and (<= (select main_a main_x) 163) (not (= main_x main_y))), 74003#(and (not (= main_x main_y)) (<= (select main_a main_x) 166)), 74002#(and (<= (select main_a main_x) 165) (not (= main_x main_y))), 74004#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 73835#true, 73837#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 73836#false, 73839#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 73838#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 73841#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 73840#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 73843#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 73842#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 73845#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 73844#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 73847#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 73846#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 73849#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 73848#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 73851#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 73850#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 73853#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 73852#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 73855#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 73854#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 73857#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 73856#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 73859#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 73858#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 73861#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 73860#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 73863#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 73862#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 73865#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 73864#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 73867#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 73866#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 73869#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 73868#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 73871#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 73870#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 73873#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 73872#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 73875#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 73874#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 73877#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 73876#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 73879#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 73878#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 73881#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 73880#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 73883#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 73882#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 73885#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 73884#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 73887#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 73886#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 73889#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 73888#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 73891#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 73890#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 73893#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 73892#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 73895#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 73894#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 73897#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 73896#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 73899#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 73898#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 73901#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 73900#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 73903#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 73902#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 73905#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 73904#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 73907#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 73906#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 73909#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 73908#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 73911#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 73910#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 73913#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 73912#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 73915#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 73914#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 73917#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 73916#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 73919#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 73918#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 73921#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 73920#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 73923#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 73922#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 73925#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 73924#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 73927#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 73926#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 73929#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 73928#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 73931#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 73930#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 73933#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 73932#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 73935#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 73934#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 73937#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 73936#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 73939#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 73938#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 73941#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 73940#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 73943#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 73942#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 73945#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 73944#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 73947#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 73946#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 73949#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 73948#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 73951#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 73950#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 73953#(and (<= (select main_a main_x) 116) (not (= main_x main_y))), 73952#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 73955#(and (not (= main_x main_y)) (<= (select main_a main_x) 118)), 73954#(and (not (= main_x main_y)) (<= (select main_a main_x) 117)), 73957#(and (<= (select main_a main_x) 120) (not (= main_x main_y))), 73956#(and (not (= main_x main_y)) (<= (select main_a main_x) 119)), 73959#(and (not (= main_x main_y)) (<= (select main_a main_x) 122)), 73958#(and (not (= main_x main_y)) (<= (select main_a main_x) 121)), 73961#(and (not (= main_x main_y)) (<= (select main_a main_x) 124)), 73960#(and (not (= main_x main_y)) (<= (select main_a main_x) 123)), 73963#(and (not (= main_x main_y)) (<= (select main_a main_x) 126)), 73962#(and (not (= main_x main_y)) (<= (select main_a main_x) 125)), 73965#(and (not (= main_x main_y)) (<= (select main_a main_x) 128)), 73964#(and (<= (select main_a main_x) 127) (not (= main_x main_y))), 73967#(and (not (= main_x main_y)) (<= (select main_a main_x) 130)), 73966#(and (not (= main_x main_y)) (<= (select main_a main_x) 129)), 73969#(and (<= (select main_a main_x) 132) (not (= main_x main_y))), 73968#(and (<= (select main_a main_x) 131) (not (= main_x main_y))), 73971#(and (not (= main_x main_y)) (<= (select main_a main_x) 134)), 73970#(and (not (= main_x main_y)) (<= (select main_a main_x) 133)), 73973#(and (<= (select main_a main_x) 136) (not (= main_x main_y))), 73972#(and (not (= main_x main_y)) (<= (select main_a main_x) 135)), 73975#(and (not (= main_x main_y)) (<= (select main_a main_x) 138)), 73974#(and (<= (select main_a main_x) 137) (not (= main_x main_y))), 73977#(and (not (= main_x main_y)) (<= (select main_a main_x) 140)), 73976#(and (not (= main_x main_y)) (<= (select main_a main_x) 139)), 73979#(and (not (= main_x main_y)) (<= (select main_a main_x) 142)), 73978#(and (<= (select main_a main_x) 141) (not (= main_x main_y))), 73981#(and (<= (select main_a main_x) 144) (not (= main_x main_y))), 73980#(and (not (= main_x main_y)) (<= (select main_a main_x) 143)), 73983#(and (<= (select main_a main_x) 146) (not (= main_x main_y))), 73982#(and (not (= main_x main_y)) (<= (select main_a main_x) 145))] [2018-07-23 13:55:46,502 INFO L134 CoverageAnalysis]: Checked inductivity of 14028 backedges. 0 proven. 14028 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:46,502 INFO L450 AbstractCegarLoop]: Interpolant automaton has 170 states [2018-07-23 13:55:46,504 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 170 interpolants. [2018-07-23 13:55:46,505 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14365, Invalid=14365, Unknown=0, NotChecked=0, Total=28730 [2018-07-23 13:55:46,505 INFO L87 Difference]: Start difference. First operand 171 states and 171 transitions. Second operand 170 states. [2018-07-23 13:55:46,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:46,842 INFO L93 Difference]: Finished difference Result 174 states and 174 transitions. [2018-07-23 13:55:46,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 170 states. [2018-07-23 13:55:46,842 INFO L78 Accepts]: Start accepts. Automaton has 170 states. Word has length 170 [2018-07-23 13:55:46,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:46,842 INFO L225 Difference]: With dead ends: 174 [2018-07-23 13:55:46,842 INFO L226 Difference]: Without dead ends: 172 [2018-07-23 13:55:46,844 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=14365, Invalid=14365, Unknown=0, NotChecked=0, Total=28730 [2018-07-23 13:55:46,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2018-07-23 13:55:46,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2018-07-23 13:55:46,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2018-07-23 13:55:46,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 172 transitions. [2018-07-23 13:55:46,849 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 172 transitions. Word has length 170 [2018-07-23 13:55:46,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:46,849 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 172 transitions. [2018-07-23 13:55:46,849 INFO L472 AbstractCegarLoop]: Interpolant automaton has 170 states. [2018-07-23 13:55:46,849 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 172 transitions. [2018-07-23 13:55:46,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2018-07-23 13:55:46,849 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:46,849 INFO L357 BasicCegarLoop]: trace histogram [168, 1, 1, 1] [2018-07-23 13:55:46,849 INFO L414 AbstractCegarLoop]: === Iteration 169 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:46,850 INFO L82 PathProgramCache]: Analyzing trace with hash -68328352, now seen corresponding path program 168 times [2018-07-23 13:55:46,850 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:47,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:49,778 INFO L134 CoverageAnalysis]: Checked inductivity of 14196 backedges. 0 proven. 14196 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:49,778 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:49,779 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [170] total 170 [2018-07-23 13:55:49,779 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:49,779 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 13:55:49,779 INFO L185 omatonBuilderFactory]: Interpolants [74753#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 74752#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 74755#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 74754#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 74757#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 74756#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 74759#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 74758#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 74761#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 74760#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 74763#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 74762#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 74765#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 74764#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 74767#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 74766#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 74769#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 74768#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 74771#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 74770#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 74773#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 74772#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 74775#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 74774#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 74777#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 74776#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 74779#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 74778#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 74781#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 74780#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 74783#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 74782#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 74785#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 74784#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 74787#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 74786#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 74789#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 74788#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 74791#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 74790#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 74793#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 74792#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 74795#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 74794#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 74797#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 74796#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 74799#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 74798#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 74801#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 74800#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 74803#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 74802#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 74805#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 74804#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 74807#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 74806#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 74809#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 74808#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 74811#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 74810#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 74813#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 74812#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 74815#(and (<= (select main_a main_x) 116) (not (= main_x main_y))), 74814#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 74817#(and (not (= main_x main_y)) (<= (select main_a main_x) 118)), 74816#(and (not (= main_x main_y)) (<= (select main_a main_x) 117)), 74819#(and (<= (select main_a main_x) 120) (not (= main_x main_y))), 74818#(and (not (= main_x main_y)) (<= (select main_a main_x) 119)), 74821#(and (not (= main_x main_y)) (<= (select main_a main_x) 122)), 74820#(and (not (= main_x main_y)) (<= (select main_a main_x) 121)), 74823#(and (not (= main_x main_y)) (<= (select main_a main_x) 124)), 74822#(and (not (= main_x main_y)) (<= (select main_a main_x) 123)), 74825#(and (not (= main_x main_y)) (<= (select main_a main_x) 126)), 74824#(and (not (= main_x main_y)) (<= (select main_a main_x) 125)), 74827#(and (not (= main_x main_y)) (<= (select main_a main_x) 128)), 74826#(and (<= (select main_a main_x) 127) (not (= main_x main_y))), 74829#(and (not (= main_x main_y)) (<= (select main_a main_x) 130)), 74828#(and (not (= main_x main_y)) (<= (select main_a main_x) 129)), 74831#(and (<= (select main_a main_x) 132) (not (= main_x main_y))), 74830#(and (<= (select main_a main_x) 131) (not (= main_x main_y))), 74833#(and (not (= main_x main_y)) (<= (select main_a main_x) 134)), 74832#(and (not (= main_x main_y)) (<= (select main_a main_x) 133)), 74835#(and (<= (select main_a main_x) 136) (not (= main_x main_y))), 74834#(and (not (= main_x main_y)) (<= (select main_a main_x) 135)), 74837#(and (not (= main_x main_y)) (<= (select main_a main_x) 138)), 74836#(and (<= (select main_a main_x) 137) (not (= main_x main_y))), 74839#(and (not (= main_x main_y)) 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74852#(and (<= (select main_a main_x) 153) (not (= main_x main_y))), 74855#(and (<= (select main_a main_x) 156) (not (= main_x main_y))), 74854#(and (<= (select main_a main_x) 155) (not (= main_x main_y))), 74857#(and (<= (select main_a main_x) 158) (not (= main_x main_y))), 74856#(and (not (= main_x main_y)) (<= (select main_a main_x) 157)), 74859#(and (not (= main_x main_y)) (<= (select main_a main_x) 160)), 74858#(and (<= (select main_a main_x) 159) (not (= main_x main_y))), 74861#(and (not (= main_x main_y)) (<= (select main_a main_x) 162)), 74860#(and (<= (select main_a main_x) 161) (not (= main_x main_y))), 74863#(and (<= (select main_a main_x) 164) (not (= main_x main_y))), 74862#(and (<= (select main_a main_x) 163) (not (= main_x main_y))), 74865#(and (not (= main_x main_y)) (<= (select main_a main_x) 166)), 74864#(and (<= (select main_a main_x) 165) (not (= main_x main_y))), 74867#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 74866#(and (not (= main_x main_y)) (<= (select main_a main_x) 167)), 74697#true, 74699#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 74698#false, 74701#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 74700#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 74703#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 74702#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 74705#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 74704#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 74707#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 74706#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 74709#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 74708#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 74711#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 74710#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 74713#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 74712#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 74715#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 74714#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 74717#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 74716#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 74719#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 74718#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 74721#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 74720#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 74723#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 74722#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 74725#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 74724#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 74727#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 74726#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 74729#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 74728#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 74731#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 74730#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 74733#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 74732#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 74735#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 74734#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 74737#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 74736#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 74739#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 74738#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 74741#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 74740#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 74743#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 74742#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 74745#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 74744#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 74747#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 74746#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 74749#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 74748#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 74751#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 74750#(and (<= (select main_a main_x) 51) (not (= main_x main_y)))] [2018-07-23 13:55:49,780 INFO L134 CoverageAnalysis]: Checked inductivity of 14196 backedges. 0 proven. 14196 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:49,780 INFO L450 AbstractCegarLoop]: Interpolant automaton has 171 states [2018-07-23 13:55:49,781 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 171 interpolants. [2018-07-23 13:55:49,782 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14535, Invalid=14535, Unknown=0, NotChecked=0, Total=29070 [2018-07-23 13:55:49,782 INFO L87 Difference]: Start difference. First operand 172 states and 172 transitions. Second operand 171 states. [2018-07-23 13:55:50,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:50,075 INFO L93 Difference]: Finished difference Result 175 states and 175 transitions. [2018-07-23 13:55:50,075 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 171 states. [2018-07-23 13:55:50,075 INFO L78 Accepts]: Start accepts. Automaton has 171 states. Word has length 171 [2018-07-23 13:55:50,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:50,075 INFO L225 Difference]: With dead ends: 175 [2018-07-23 13:55:50,075 INFO L226 Difference]: Without dead ends: 173 [2018-07-23 13:55:50,076 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 169 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=14535, Invalid=14535, Unknown=0, NotChecked=0, Total=29070 [2018-07-23 13:55:50,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2018-07-23 13:55:50,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2018-07-23 13:55:50,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2018-07-23 13:55:50,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 173 transitions. [2018-07-23 13:55:50,081 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 173 transitions. Word has length 171 [2018-07-23 13:55:50,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:50,081 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 173 transitions. [2018-07-23 13:55:50,082 INFO L472 AbstractCegarLoop]: Interpolant automaton has 171 states. [2018-07-23 13:55:50,082 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 173 transitions. [2018-07-23 13:55:50,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2018-07-23 13:55:50,082 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:50,082 INFO L357 BasicCegarLoop]: trace histogram [169, 1, 1, 1] [2018-07-23 13:55:50,082 INFO L414 AbstractCegarLoop]: === Iteration 170 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:50,082 INFO L82 PathProgramCache]: Analyzing trace with hash -2118182778, now seen corresponding path program 169 times [2018-07-23 13:55:50,082 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:50,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:53,047 INFO L134 CoverageAnalysis]: Checked inductivity of 14365 backedges. 0 proven. 14365 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:53,048 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:53,048 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [171] total 171 [2018-07-23 13:55:53,048 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:53,048 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 13:55:53,049 INFO L185 omatonBuilderFactory]: Interpolants [75565#false, 75564#true, 75567#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 75566#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 75569#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 75568#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 75571#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 75570#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 75573#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 75572#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 75575#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 75574#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 75577#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 75576#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 75579#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 75578#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 75581#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 75580#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 75583#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 75582#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 75585#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 75584#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 75587#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 75586#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 75589#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 75588#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 75591#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 75590#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 75593#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 75592#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 75595#(and 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(= main_x main_y)) (<= (select main_a main_x) 73)), 75638#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 75641#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 75640#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 75643#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 75642#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 75645#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 75644#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 75647#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 75646#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 75649#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 75648#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 75651#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 75650#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 75653#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 75652#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 75655#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 75654#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 75657#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 75656#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 75659#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 75658#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 75661#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 75660#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 75663#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 75662#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 75665#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 75664#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 75667#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 75666#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 75669#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 75668#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 75671#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 75670#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 75673#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 75672#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 75675#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 75674#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 75677#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 75676#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 75679#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 75678#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 75681#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 75680#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 75683#(and (not (= main_x main_y)) (<= (select main_a main_x) 117)), 75682#(and (<= (select main_a main_x) 116) (not (= main_x main_y))), 75685#(and (not (= main_x main_y)) (<= (select main_a main_x) 119)), 75684#(and (not (= main_x main_y)) (<= (select main_a main_x) 118)), 75687#(and (not (= main_x main_y)) (<= (select main_a main_x) 121)), 75686#(and (<= (select main_a main_x) 120) (not (= main_x main_y))), 75689#(and (not (= main_x main_y)) (<= (select main_a main_x) 123)), 75688#(and (not (= main_x main_y)) (<= (select main_a main_x) 122)), 75691#(and (not (= main_x main_y)) (<= (select main_a main_x) 125)), 75690#(and (not (= main_x main_y)) (<= (select main_a main_x) 124)), 75693#(and (<= (select main_a main_x) 127) (not (= main_x main_y))), 75692#(and (not (= main_x main_y)) (<= (select main_a main_x) 126)), 75695#(and (not (= main_x main_y)) (<= (select main_a main_x) 129)), 75694#(and (not (= main_x main_y)) (<= (select main_a main_x) 128)), 75697#(and (<= (select main_a main_x) 131) (not (= main_x main_y))), 75696#(and (not (= main_x main_y)) (<= (select main_a main_x) 130)), 75699#(and (not (= main_x main_y)) (<= (select main_a main_x) 133)), 75698#(and (<= (select main_a main_x) 132) (not (= main_x main_y))), 75701#(and (not (= main_x main_y)) (<= (select main_a main_x) 135)), 75700#(and (not (= main_x main_y)) (<= (select main_a main_x) 134)), 75703#(and (<= (select main_a main_x) 137) (not (= main_x main_y))), 75702#(and (<= (select main_a main_x) 136) (not (= main_x main_y))), 75705#(and (not (= main_x main_y)) (<= (select main_a main_x) 139)), 75704#(and (not (= main_x main_y)) (<= (select main_a main_x) 138)), 75707#(and (<= (select main_a main_x) 141) (not (= main_x main_y))), 75706#(and (not (= main_x main_y)) (<= (select main_a main_x) 140)), 75709#(and (not (= main_x main_y)) (<= (select main_a main_x) 143)), 75708#(and (not (= main_x main_y)) (<= (select main_a main_x) 142)), 75711#(and (not (= main_x main_y)) (<= (select main_a main_x) 145)), 75710#(and (<= (select main_a main_x) 144) (not (= main_x main_y))), 75713#(and (not (= main_x main_y)) (<= (select main_a main_x) 147)), 75712#(and (<= (select main_a main_x) 146) (not (= main_x main_y))), 75715#(and (not (= main_x main_y)) (<= (select main_a main_x) 149)), 75714#(and (<= (select main_a main_x) 148) (not (= main_x main_y))), 75717#(and (<= (select main_a main_x) 151) (not (= main_x main_y))), 75716#(and (not (= main_x main_y)) (<= (select main_a main_x) 150)), 75719#(and (<= (select main_a main_x) 153) (not (= main_x main_y))), 75718#(and (<= (select main_a main_x) 152) (not (= main_x main_y))), 75721#(and (<= (select main_a main_x) 155) (not (= main_x main_y))), 75720#(and (not (= main_x main_y)) (<= (select main_a main_x) 154)), 75723#(and (not (= main_x main_y)) (<= (select main_a main_x) 157)), 75722#(and (<= (select main_a main_x) 156) (not (= main_x main_y))), 75725#(and (<= (select main_a main_x) 159) (not (= main_x main_y))), 75724#(and (<= (select main_a main_x) 158) (not (= main_x main_y))), 75727#(and (<= (select main_a main_x) 161) (not (= main_x main_y))), 75726#(and (not (= main_x main_y)) (<= (select main_a main_x) 160)), 75729#(and (<= (select main_a main_x) 163) (not (= main_x main_y))), 75728#(and (not (= main_x main_y)) (<= (select main_a main_x) 162)), 75731#(and (<= (select main_a main_x) 165) (not (= main_x main_y))), 75730#(and (<= (select main_a main_x) 164) (not (= main_x main_y))), 75733#(and (not (= main_x main_y)) (<= (select main_a main_x) 167)), 75732#(and (not (= main_x main_y)) (<= (select main_a main_x) 166)), 75735#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 75734#(and (<= (select main_a main_x) 168) (not (= main_x main_y)))] [2018-07-23 13:55:53,049 INFO L134 CoverageAnalysis]: Checked inductivity of 14365 backedges. 0 proven. 14365 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:53,050 INFO L450 AbstractCegarLoop]: Interpolant automaton has 172 states [2018-07-23 13:55:53,052 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 172 interpolants. [2018-07-23 13:55:53,052 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14706, Invalid=14706, Unknown=0, NotChecked=0, Total=29412 [2018-07-23 13:55:53,053 INFO L87 Difference]: Start difference. First operand 173 states and 173 transitions. Second operand 172 states. [2018-07-23 13:55:53,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:53,591 INFO L93 Difference]: Finished difference Result 176 states and 176 transitions. [2018-07-23 13:55:53,591 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 172 states. [2018-07-23 13:55:53,591 INFO L78 Accepts]: Start accepts. Automaton has 172 states. Word has length 172 [2018-07-23 13:55:53,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:53,592 INFO L225 Difference]: With dead ends: 176 [2018-07-23 13:55:53,592 INFO L226 Difference]: Without dead ends: 174 [2018-07-23 13:55:53,593 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 170 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=14706, Invalid=14706, Unknown=0, NotChecked=0, Total=29412 [2018-07-23 13:55:53,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2018-07-23 13:55:53,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2018-07-23 13:55:53,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2018-07-23 13:55:53,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 174 transitions. [2018-07-23 13:55:53,599 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 174 transitions. Word has length 172 [2018-07-23 13:55:53,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:53,599 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 174 transitions. [2018-07-23 13:55:53,599 INFO L472 AbstractCegarLoop]: Interpolant automaton has 172 states. [2018-07-23 13:55:53,599 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 174 transitions. [2018-07-23 13:55:53,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2018-07-23 13:55:53,599 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:53,599 INFO L357 BasicCegarLoop]: trace histogram [170, 1, 1, 1] [2018-07-23 13:55:53,600 INFO L414 AbstractCegarLoop]: === Iteration 171 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:53,600 INFO L82 PathProgramCache]: Analyzing trace with hash -1239160544, now seen corresponding path program 170 times [2018-07-23 13:55:53,600 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:53,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:56,550 INFO L134 CoverageAnalysis]: Checked inductivity of 14535 backedges. 0 proven. 14535 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:56,550 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:56,550 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [172] total 172 [2018-07-23 13:55:56,550 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:56,551 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 13:55:56,551 INFO L185 omatonBuilderFactory]: Interpolants [76545#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 76544#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 76547#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 76546#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 76549#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 76548#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 76551#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 76550#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 76553#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 76552#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 76555#(and (not (= main_x main_y)) (<= (select main_a main_x) 117)), 76554#(and (<= (select main_a main_x) 116) (not (= main_x main_y))), 76557#(and (not (= main_x main_y)) (<= (select main_a main_x) 119)), 76556#(and (not (= main_x main_y)) (<= (select main_a main_x) 118)), 76559#(and (not (= main_x main_y)) (<= (select main_a main_x) 121)), 76558#(and (<= (select main_a main_x) 120) (not (= main_x main_y))), 76561#(and (not (= main_x main_y)) (<= (select main_a main_x) 123)), 76560#(and (not (= main_x main_y)) (<= (select main_a main_x) 122)), 76563#(and (not (= main_x main_y)) (<= (select main_a main_x) 125)), 76562#(and (not (= main_x main_y)) (<= (select main_a main_x) 124)), 76565#(and (<= (select main_a main_x) 127) (not (= main_x main_y))), 76564#(and (not (= main_x main_y)) (<= (select main_a main_x) 126)), 76567#(and (not (= main_x main_y)) (<= (select main_a main_x) 129)), 76566#(and (not (= main_x main_y)) (<= (select main_a main_x) 128)), 76569#(and (<= (select main_a main_x) 131) (not (= main_x main_y))), 76568#(and (not (= main_x main_y)) (<= (select main_a main_x) 130)), 76571#(and (not (= main_x main_y)) (<= (select main_a main_x) 133)), 76570#(and (<= (select main_a main_x) 132) (not (= main_x main_y))), 76573#(and (not (= main_x main_y)) (<= (select main_a main_x) 135)), 76572#(and (not (= main_x main_y)) (<= (select main_a main_x) 134)), 76575#(and (<= (select main_a main_x) 137) (not (= main_x main_y))), 76574#(and (<= (select main_a main_x) 136) (not (= main_x main_y))), 76577#(and (not (= main_x main_y)) (<= (select main_a main_x) 139)), 76576#(and (not (= main_x main_y)) (<= (select main_a main_x) 138)), 76579#(and (<= (select main_a main_x) 141) (not (= main_x main_y))), 76578#(and (not (= main_x main_y)) (<= (select main_a main_x) 140)), 76581#(and (not (= main_x main_y)) (<= (select main_a main_x) 143)), 76580#(and (not (= main_x main_y)) (<= (select main_a main_x) 142)), 76583#(and (not (= main_x main_y)) (<= (select main_a main_x) 145)), 76582#(and (<= (select main_a main_x) 144) (not (= main_x main_y))), 76585#(and (not (= main_x main_y)) (<= (select main_a main_x) 147)), 76584#(and (<= (select main_a main_x) 146) (not (= main_x main_y))), 76587#(and (not (= main_x main_y)) (<= (select main_a main_x) 149)), 76586#(and (<= (select main_a main_x) 148) (not (= main_x main_y))), 76589#(and (<= (select main_a main_x) 151) (not (= main_x main_y))), 76588#(and (not (= main_x main_y)) (<= (select main_a main_x) 150)), 76591#(and (<= (select main_a main_x) 153) (not (= main_x main_y))), 76590#(and (<= (select main_a main_x) 152) (not (= main_x main_y))), 76593#(and (<= (select main_a main_x) 155) (not (= main_x main_y))), 76592#(and (not (= main_x main_y)) (<= (select main_a main_x) 154)), 76595#(and (not (= main_x main_y)) (<= (select main_a main_x) 157)), 76594#(and (<= (select main_a main_x) 156) (not (= main_x main_y))), 76597#(and (<= (select main_a main_x) 159) (not (= main_x main_y))), 76596#(and (<= (select main_a main_x) 158) (not (= main_x main_y))), 76599#(and (<= (select main_a main_x) 161) (not (= main_x main_y))), 76598#(and (not (= main_x main_y)) (<= (select main_a main_x) 160)), 76601#(and (<= (select main_a main_x) 163) (not (= main_x main_y))), 76600#(and (not (= main_x main_y)) (<= (select main_a main_x) 162)), 76603#(and (<= (select main_a main_x) 165) (not (= main_x main_y))), 76602#(and (<= (select main_a main_x) 164) (not (= main_x main_y))), 76605#(and (not (= main_x main_y)) (<= (select main_a main_x) 167)), 76604#(and (not (= main_x main_y)) (<= (select main_a main_x) 166)), 76607#(and (not (= main_x main_y)) (<= (select main_a main_x) 169)), 76606#(and (<= (select main_a main_x) 168) (not (= main_x main_y))), 76608#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 76437#false, 76436#true, 76439#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 76438#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 76441#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 76440#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 76443#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 76442#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 76445#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 76444#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 76447#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 76446#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 76449#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 76448#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 76451#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 76450#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 76453#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 76452#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 76455#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 76454#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 76457#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 76456#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 76459#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 76458#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 76461#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 76460#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 76463#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 76462#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 76465#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 76464#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 76467#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 76466#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 76469#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 76468#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 76471#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 76470#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 76473#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 76472#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 76475#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 76474#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 76477#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 76476#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 76479#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 76478#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 76481#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 76480#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 76483#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 76482#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 76485#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 76484#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 76487#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 76486#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 76489#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 76488#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 76491#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 76490#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 76493#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 76492#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 76495#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 76494#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 76497#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 76496#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 76499#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 76498#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 76501#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 76500#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 76503#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 76502#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 76505#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 76504#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 76507#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 76506#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 76509#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 76508#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 76511#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 76510#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 76513#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 76512#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 76515#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 76514#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 76517#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 76516#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 76519#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 76518#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 76521#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 76520#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 76523#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 76522#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 76525#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 76524#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 76527#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 76526#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 76529#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 76528#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 76531#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 76530#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 76533#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 76532#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 76535#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 76534#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 76537#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 76536#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 76539#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 76538#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 76541#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 76540#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 76543#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 76542#(and (not (= main_x main_y)) (<= (select main_a main_x) 104))] [2018-07-23 13:55:56,552 INFO L134 CoverageAnalysis]: Checked inductivity of 14535 backedges. 0 proven. 14535 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:56,553 INFO L450 AbstractCegarLoop]: Interpolant automaton has 173 states [2018-07-23 13:55:56,556 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 173 interpolants. [2018-07-23 13:55:56,557 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14878, Invalid=14878, Unknown=0, NotChecked=0, Total=29756 [2018-07-23 13:55:56,557 INFO L87 Difference]: Start difference. First operand 174 states and 174 transitions. Second operand 173 states. [2018-07-23 13:55:56,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:56,748 INFO L93 Difference]: Finished difference Result 177 states and 177 transitions. [2018-07-23 13:55:56,748 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 173 states. [2018-07-23 13:55:56,748 INFO L78 Accepts]: Start accepts. Automaton has 173 states. Word has length 173 [2018-07-23 13:55:56,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:56,749 INFO L225 Difference]: With dead ends: 177 [2018-07-23 13:55:56,749 INFO L226 Difference]: Without dead ends: 175 [2018-07-23 13:55:56,751 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 171 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=14878, Invalid=14878, Unknown=0, NotChecked=0, Total=29756 [2018-07-23 13:55:56,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2018-07-23 13:55:56,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2018-07-23 13:55:56,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2018-07-23 13:55:56,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 175 transitions. [2018-07-23 13:55:56,758 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 175 transitions. Word has length 173 [2018-07-23 13:55:56,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:56,758 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 175 transitions. [2018-07-23 13:55:56,758 INFO L472 AbstractCegarLoop]: Interpolant automaton has 173 states. [2018-07-23 13:55:56,759 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 175 transitions. [2018-07-23 13:55:56,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2018-07-23 13:55:56,759 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:56,759 INFO L357 BasicCegarLoop]: trace histogram [171, 1, 1, 1] [2018-07-23 13:55:56,759 INFO L414 AbstractCegarLoop]: === Iteration 172 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:56,760 INFO L82 PathProgramCache]: Analyzing trace with hash 240724934, now seen corresponding path program 171 times [2018-07-23 13:55:56,760 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:56,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:59,743 INFO L134 CoverageAnalysis]: Checked inductivity of 14706 backedges. 0 proven. 14706 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:59,744 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:59,744 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [173] total 173 [2018-07-23 13:55:59,744 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:59,744 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 13:55:59,745 INFO L185 omatonBuilderFactory]: Interpolants [77313#true, 77315#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 77314#false, 77317#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 77316#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 77319#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 77318#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 77321#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 77320#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 77323#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 77322#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 77325#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 77324#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 77327#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 77326#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 77329#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 77328#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 77331#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 77330#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 77333#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 77332#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 77335#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 77334#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 77337#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 77336#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 77339#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 77338#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 77341#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 77340#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 77343#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 77342#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 77345#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 77344#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 77347#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 77346#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 77349#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 77348#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 77351#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 77350#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 77353#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 77352#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 77355#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 77354#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 77357#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 77356#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 77359#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 77358#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 77361#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 77360#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 77363#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 77362#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 77365#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 77364#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 77367#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 77366#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 77369#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 77368#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 77371#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 77370#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 77373#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 77372#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 77375#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 77374#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 77377#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 77376#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 77379#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 77378#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 77381#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 77380#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 77383#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 77382#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 77385#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 77384#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 77387#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 77386#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 77389#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 77388#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 77391#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 77390#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 77393#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 77392#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 77395#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 77394#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 77397#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 77396#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 77399#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 77398#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 77401#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 77400#(and (<= (select main_a main_x) 85) (not (= main_x 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77430#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 77433#(and (not (= main_x main_y)) (<= (select main_a main_x) 118)), 77432#(and (not (= main_x main_y)) (<= (select main_a main_x) 117)), 77435#(and (<= (select main_a main_x) 120) (not (= main_x main_y))), 77434#(and (not (= main_x main_y)) (<= (select main_a main_x) 119)), 77437#(and (not (= main_x main_y)) (<= (select main_a main_x) 122)), 77436#(and (not (= main_x main_y)) (<= (select main_a main_x) 121)), 77439#(and (not (= main_x main_y)) (<= (select main_a main_x) 124)), 77438#(and (not (= main_x main_y)) (<= (select main_a main_x) 123)), 77441#(and (not (= main_x main_y)) (<= (select main_a main_x) 126)), 77440#(and (not (= main_x main_y)) (<= (select main_a main_x) 125)), 77443#(and (not (= main_x main_y)) (<= (select main_a main_x) 128)), 77442#(and (<= (select main_a main_x) 127) (not (= main_x main_y))), 77445#(and (not (= main_x main_y)) (<= (select main_a main_x) 130)), 77444#(and (not (= main_x main_y)) (<= (select main_a main_x) 129)), 77447#(and (<= (select main_a main_x) 132) (not (= main_x main_y))), 77446#(and (<= (select main_a main_x) 131) (not (= main_x main_y))), 77449#(and (not (= main_x main_y)) (<= (select main_a main_x) 134)), 77448#(and (not (= main_x main_y)) (<= (select main_a main_x) 133)), 77451#(and (<= (select main_a main_x) 136) (not (= main_x main_y))), 77450#(and (not (= main_x main_y)) (<= (select main_a main_x) 135)), 77453#(and (not (= main_x main_y)) (<= (select main_a main_x) 138)), 77452#(and (<= (select main_a main_x) 137) (not (= main_x main_y))), 77455#(and (not (= main_x main_y)) (<= (select main_a main_x) 140)), 77454#(and (not (= main_x main_y)) (<= (select main_a main_x) 139)), 77457#(and (not (= main_x main_y)) (<= (select main_a main_x) 142)), 77456#(and (<= (select main_a main_x) 141) (not (= main_x main_y))), 77459#(and (<= (select main_a main_x) 144) (not (= main_x main_y))), 77458#(and (not (= main_x main_y)) (<= (select main_a main_x) 143)), 77461#(and (<= (select main_a main_x) 146) (not (= main_x main_y))), 77460#(and (not (= main_x main_y)) (<= (select main_a main_x) 145)), 77463#(and (<= (select main_a main_x) 148) (not (= main_x main_y))), 77462#(and (not (= main_x main_y)) (<= (select main_a main_x) 147)), 77465#(and (not (= main_x main_y)) (<= (select main_a main_x) 150)), 77464#(and (not (= main_x main_y)) (<= (select main_a main_x) 149)), 77467#(and (<= (select main_a main_x) 152) (not (= main_x main_y))), 77466#(and (<= (select main_a main_x) 151) (not (= main_x main_y))), 77469#(and (not (= main_x main_y)) (<= (select main_a main_x) 154)), 77468#(and (<= (select main_a main_x) 153) (not (= main_x main_y))), 77471#(and (<= (select main_a main_x) 156) (not (= main_x main_y))), 77470#(and (<= (select main_a main_x) 155) (not (= main_x main_y))), 77473#(and (<= (select main_a main_x) 158) (not (= main_x main_y))), 77472#(and (not (= main_x main_y)) (<= (select main_a main_x) 157)), 77475#(and (not (= main_x main_y)) (<= (select main_a main_x) 160)), 77474#(and (<= (select main_a main_x) 159) (not (= main_x main_y))), 77477#(and (not (= main_x main_y)) (<= (select main_a main_x) 162)), 77476#(and (<= (select main_a main_x) 161) (not (= main_x main_y))), 77479#(and (<= (select main_a main_x) 164) (not (= main_x main_y))), 77478#(and (<= (select main_a main_x) 163) (not (= main_x main_y))), 77481#(and (not (= main_x main_y)) (<= (select main_a main_x) 166)), 77480#(and (<= (select main_a main_x) 165) (not (= main_x main_y))), 77483#(and (<= (select main_a main_x) 168) (not (= main_x main_y))), 77482#(and (not (= main_x main_y)) (<= (select main_a main_x) 167)), 77485#(and (not (= main_x main_y)) (<= (select main_a main_x) 170)), 77484#(and (not (= main_x main_y)) (<= (select main_a main_x) 169)), 77486#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y)))] [2018-07-23 13:55:59,745 INFO L134 CoverageAnalysis]: Checked inductivity of 14706 backedges. 0 proven. 14706 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:59,746 INFO L450 AbstractCegarLoop]: Interpolant automaton has 174 states [2018-07-23 13:55:59,748 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 174 interpolants. [2018-07-23 13:55:59,748 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15051, Invalid=15051, Unknown=0, NotChecked=0, Total=30102 [2018-07-23 13:55:59,749 INFO L87 Difference]: Start difference. First operand 175 states and 175 transitions. Second operand 174 states. [2018-07-23 13:56:00,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:56:00,334 INFO L93 Difference]: Finished difference Result 178 states and 178 transitions. [2018-07-23 13:56:00,334 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 174 states. [2018-07-23 13:56:00,334 INFO L78 Accepts]: Start accepts. Automaton has 174 states. Word has length 174 [2018-07-23 13:56:00,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:56:00,335 INFO L225 Difference]: With dead ends: 178 [2018-07-23 13:56:00,335 INFO L226 Difference]: Without dead ends: 176 [2018-07-23 13:56:00,337 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 172 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=15051, Invalid=15051, Unknown=0, NotChecked=0, Total=30102 [2018-07-23 13:56:00,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2018-07-23 13:56:00,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2018-07-23 13:56:00,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2018-07-23 13:56:00,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 176 transitions. [2018-07-23 13:56:00,343 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 176 transitions. Word has length 174 [2018-07-23 13:56:00,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:56:00,343 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 176 transitions. [2018-07-23 13:56:00,343 INFO L472 AbstractCegarLoop]: Interpolant automaton has 174 states. [2018-07-23 13:56:00,343 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 176 transitions. [2018-07-23 13:56:00,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2018-07-23 13:56:00,343 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:56:00,344 INFO L357 BasicCegarLoop]: trace histogram [172, 1, 1, 1] [2018-07-23 13:56:00,344 INFO L414 AbstractCegarLoop]: === Iteration 173 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:56:00,344 INFO L82 PathProgramCache]: Analyzing trace with hash -1127465504, now seen corresponding path program 172 times [2018-07-23 13:56:00,344 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:56:00,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:56:03,377 INFO L134 CoverageAnalysis]: Checked inductivity of 14878 backedges. 0 proven. 14878 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:03,378 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:56:03,378 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [174] total 174 [2018-07-23 13:56:03,378 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:56:03,379 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 13:56:03,379 INFO L185 omatonBuilderFactory]: Interpolants [78337#(and (not (= main_x main_y)) (<= (select main_a main_x) 140)), 78336#(and (not (= main_x main_y)) (<= (select main_a main_x) 139)), 78339#(and (not (= main_x main_y)) (<= (select main_a main_x) 142)), 78338#(and (<= (select main_a main_x) 141) (not (= main_x main_y))), 78341#(and (<= (select main_a main_x) 144) (not (= main_x main_y))), 78340#(and (not (= main_x main_y)) (<= (select main_a main_x) 143)), 78343#(and (<= (select main_a main_x) 146) (not (= main_x main_y))), 78342#(and (not (= main_x main_y)) (<= (select main_a main_x) 145)), 78345#(and (<= (select main_a main_x) 148) (not (= main_x main_y))), 78344#(and (not (= main_x main_y)) (<= (select main_a main_x) 147)), 78347#(and (not (= main_x main_y)) (<= (select main_a main_x) 150)), 78346#(and (not (= main_x main_y)) (<= (select main_a main_x) 149)), 78349#(and (<= (select main_a main_x) 152) (not (= main_x main_y))), 78348#(and (<= (select main_a main_x) 151) (not (= main_x main_y))), 78351#(and (not (= main_x main_y)) (<= (select main_a main_x) 154)), 78350#(and (<= (select main_a main_x) 153) (not (= main_x main_y))), 78353#(and (<= (select main_a main_x) 156) (not (= main_x main_y))), 78352#(and (<= (select main_a main_x) 155) (not (= main_x main_y))), 78355#(and (<= (select main_a main_x) 158) (not (= main_x main_y))), 78354#(and (not (= main_x main_y)) (<= (select main_a main_x) 157)), 78357#(and (not (= main_x main_y)) (<= (select main_a main_x) 160)), 78356#(and (<= (select main_a main_x) 159) (not (= main_x main_y))), 78359#(and (not (= main_x main_y)) (<= (select main_a main_x) 162)), 78358#(and (<= (select main_a main_x) 161) (not (= main_x main_y))), 78361#(and (<= (select main_a main_x) 164) (not (= main_x main_y))), 78360#(and (<= (select main_a main_x) 163) (not (= main_x main_y))), 78363#(and (not (= main_x main_y)) (<= (select main_a main_x) 166)), 78362#(and (<= (select main_a main_x) 165) (not (= main_x main_y))), 78365#(and (<= (select main_a main_x) 168) (not (= main_x main_y))), 78364#(and (not (= main_x main_y)) (<= (select main_a main_x) 167)), 78367#(and (not (= main_x main_y)) (<= (select main_a main_x) 170)), 78366#(and (not (= main_x main_y)) (<= (select main_a main_x) 169)), 78369#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 78368#(and (not (= main_x main_y)) (<= (select main_a main_x) 171)), 78195#true, 78197#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 78196#false, 78199#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 78198#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 78201#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 78200#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 78203#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 78202#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 78205#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 78204#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 78207#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 78206#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 78209#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 78208#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 78211#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 78210#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 78213#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 78212#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 78215#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 78214#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 78217#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 78216#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 78219#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 78218#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 78221#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 78220#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 78223#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 78222#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 78225#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 78224#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 78227#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 78226#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 78229#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 78228#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 78231#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 78230#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 78233#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 78232#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 78235#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 78234#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 78237#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 78236#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 78239#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 78238#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 78241#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 78240#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 78243#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 78242#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 78245#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 78244#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 78247#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 78246#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 78249#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 78248#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 78251#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 78250#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 78253#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 78252#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 78255#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 78254#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 78257#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 78256#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 78259#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 78258#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 78261#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 78260#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 78263#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 78262#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 78265#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 78264#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 78267#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 78266#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 78269#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 78268#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 78271#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 78270#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 78273#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 78272#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 78275#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 78274#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 78277#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 78276#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 78279#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 78278#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 78281#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 78280#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 78283#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 78282#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 78285#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 78284#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 78287#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 78286#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 78289#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 78288#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 78291#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 78290#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 78293#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 78292#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 78295#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 78294#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 78297#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 78296#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 78299#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 78298#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 78301#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 78300#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 78303#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 78302#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 78305#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 78304#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 78307#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 78306#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 78309#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 78308#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 78311#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 78310#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 78313#(and (<= (select main_a main_x) 116) (not (= main_x main_y))), 78312#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 78315#(and (not (= main_x main_y)) (<= (select main_a main_x) 118)), 78314#(and (not (= main_x main_y)) (<= (select main_a main_x) 117)), 78317#(and (<= (select main_a main_x) 120) (not (= main_x main_y))), 78316#(and (not (= main_x main_y)) (<= (select main_a main_x) 119)), 78319#(and (not (= main_x main_y)) (<= (select main_a main_x) 122)), 78318#(and (not (= main_x main_y)) (<= (select main_a main_x) 121)), 78321#(and (not (= main_x main_y)) (<= (select main_a main_x) 124)), 78320#(and (not (= main_x main_y)) (<= (select main_a main_x) 123)), 78323#(and (not (= main_x main_y)) (<= (select main_a main_x) 126)), 78322#(and (not (= main_x main_y)) (<= (select main_a main_x) 125)), 78325#(and (not (= main_x main_y)) (<= (select main_a main_x) 128)), 78324#(and (<= (select main_a main_x) 127) (not (= main_x main_y))), 78327#(and (not (= main_x main_y)) (<= (select main_a main_x) 130)), 78326#(and (not (= main_x main_y)) (<= (select main_a main_x) 129)), 78329#(and (<= (select main_a main_x) 132) (not (= main_x main_y))), 78328#(and (<= (select main_a main_x) 131) (not (= main_x main_y))), 78331#(and (not (= main_x main_y)) (<= (select main_a main_x) 134)), 78330#(and (not (= main_x main_y)) (<= (select main_a main_x) 133)), 78333#(and (<= (select main_a main_x) 136) (not (= main_x main_y))), 78332#(and (not (= main_x main_y)) (<= (select main_a main_x) 135)), 78335#(and (not (= main_x main_y)) (<= (select main_a main_x) 138)), 78334#(and (<= (select main_a main_x) 137) (not (= main_x main_y)))] [2018-07-23 13:56:03,380 INFO L134 CoverageAnalysis]: Checked inductivity of 14878 backedges. 0 proven. 14878 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:03,380 INFO L450 AbstractCegarLoop]: Interpolant automaton has 175 states [2018-07-23 13:56:03,382 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 175 interpolants. [2018-07-23 13:56:03,383 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15225, Invalid=15225, Unknown=0, NotChecked=0, Total=30450 [2018-07-23 13:56:03,383 INFO L87 Difference]: Start difference. First operand 176 states and 176 transitions. Second operand 175 states. [2018-07-23 13:56:03,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:56:03,775 INFO L93 Difference]: Finished difference Result 179 states and 179 transitions. [2018-07-23 13:56:03,775 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 175 states. [2018-07-23 13:56:03,775 INFO L78 Accepts]: Start accepts. Automaton has 175 states. Word has length 175 [2018-07-23 13:56:03,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:56:03,776 INFO L225 Difference]: With dead ends: 179 [2018-07-23 13:56:03,776 INFO L226 Difference]: Without dead ends: 177 [2018-07-23 13:56:03,777 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 173 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=15225, Invalid=15225, Unknown=0, NotChecked=0, Total=30450 [2018-07-23 13:56:03,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2018-07-23 13:56:03,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2018-07-23 13:56:03,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2018-07-23 13:56:03,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 177 transitions. [2018-07-23 13:56:03,783 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 177 transitions. Word has length 175 [2018-07-23 13:56:03,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:56:03,784 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 177 transitions. [2018-07-23 13:56:03,784 INFO L472 AbstractCegarLoop]: Interpolant automaton has 175 states. [2018-07-23 13:56:03,784 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 177 transitions. [2018-07-23 13:56:03,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2018-07-23 13:56:03,784 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:56:03,785 INFO L357 BasicCegarLoop]: trace histogram [173, 1, 1, 1] [2018-07-23 13:56:03,785 INFO L414 AbstractCegarLoop]: === Iteration 174 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:56:03,785 INFO L82 PathProgramCache]: Analyzing trace with hash -591696122, now seen corresponding path program 173 times [2018-07-23 13:56:03,785 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:56:04,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:56:07,210 INFO L134 CoverageAnalysis]: Checked inductivity of 15051 backedges. 0 proven. 15051 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:07,211 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:56:07,211 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [175] total 175 [2018-07-23 13:56:07,211 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:56:07,211 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 13:56:07,211 INFO L185 omatonBuilderFactory]: Interpolants [79105#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 79104#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 79107#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 79106#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 79109#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 79108#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 79111#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 79110#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 79113#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 79112#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 79115#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 79114#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 79117#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 79116#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 79119#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 79118#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 79121#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 79120#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 79123#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 79122#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 79125#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 79124#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 79127#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 79126#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 79129#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 79128#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 79131#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 79130#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 79133#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 79132#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 79135#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 79134#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 79137#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 79136#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 79139#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 79138#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 79141#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 79140#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 79143#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 79142#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 79145#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 79144#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 79147#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 79146#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 79149#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 79148#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 79151#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 79150#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 79153#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 79152#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 79155#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 79154#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 79157#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 79156#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 79159#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 79158#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 79161#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 79160#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 79163#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 79162#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 79165#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 79164#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 79167#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 79166#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 79169#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 79168#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 79171#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 79170#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 79173#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 79172#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 79175#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 79174#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 79177#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 79176#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 79179#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 79178#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 79181#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 79180#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 79183#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 79182#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 79185#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 79184#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 79187#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 79186#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 79189#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 79188#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 79191#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 79190#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 79193#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 79192#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 79195#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 79194#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 79197#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 79196#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 79199#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 79198#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 79201#(and (not (= main_x main_y)) (<= (select main_a main_x) 117)), 79200#(and (<= (select main_a main_x) 116) (not (= main_x main_y))), 79203#(and (not (= main_x main_y)) (<= (select main_a main_x) 119)), 79202#(and (not (= main_x main_y)) (<= (select main_a main_x) 118)), 79205#(and (not (= main_x main_y)) (<= (select main_a main_x) 121)), 79204#(and (<= (select main_a main_x) 120) (not (= main_x main_y))), 79207#(and (not (= main_x main_y)) (<= (select main_a main_x) 123)), 79206#(and (not (= main_x main_y)) (<= (select main_a main_x) 122)), 79209#(and (not (= main_x main_y)) (<= (select main_a main_x) 125)), 79208#(and (not (= main_x main_y)) (<= (select main_a main_x) 124)), 79211#(and (<= (select main_a main_x) 127) (not (= main_x main_y))), 79210#(and (not (= main_x main_y)) (<= (select main_a main_x) 126)), 79213#(and (not (= main_x main_y)) (<= (select main_a main_x) 129)), 79212#(and (not (= main_x main_y)) (<= (select main_a main_x) 128)), 79215#(and (<= (select main_a main_x) 131) (not (= main_x main_y))), 79214#(and (not (= main_x main_y)) (<= (select main_a main_x) 130)), 79217#(and (not (= main_x main_y)) (<= (select main_a main_x) 133)), 79216#(and (<= (select main_a main_x) 132) (not (= main_x main_y))), 79219#(and (not (= main_x main_y)) (<= (select main_a main_x) 135)), 79218#(and (not (= main_x main_y)) (<= (select main_a main_x) 134)), 79221#(and (<= (select main_a main_x) 137) (not (= main_x main_y))), 79220#(and (<= (select main_a main_x) 136) (not (= main_x main_y))), 79223#(and (not (= main_x main_y)) (<= (select main_a main_x) 139)), 79222#(and (not (= main_x main_y)) (<= (select main_a main_x) 138)), 79225#(and (<= (select main_a main_x) 141) (not (= main_x main_y))), 79224#(and (not (= main_x main_y)) (<= (select main_a main_x) 140)), 79227#(and (not (= main_x main_y)) (<= (select main_a main_x) 143)), 79226#(and (not (= main_x main_y)) (<= (select main_a main_x) 142)), 79229#(and (not (= main_x main_y)) (<= (select main_a main_x) 145)), 79228#(and (<= (select main_a main_x) 144) (not (= main_x main_y))), 79231#(and (not (= main_x main_y)) (<= (select main_a main_x) 147)), 79230#(and (<= (select main_a main_x) 146) (not (= main_x main_y))), 79233#(and (not (= main_x main_y)) (<= (select main_a main_x) 149)), 79232#(and (<= (select main_a main_x) 148) (not (= main_x main_y))), 79235#(and (<= (select main_a main_x) 151) (not (= main_x main_y))), 79234#(and (not (= main_x main_y)) (<= (select main_a main_x) 150)), 79237#(and (<= (select main_a main_x) 153) (not (= main_x main_y))), 79236#(and (<= (select main_a main_x) 152) (not (= main_x main_y))), 79239#(and (<= (select main_a main_x) 155) (not (= main_x main_y))), 79238#(and (not (= main_x main_y)) (<= (select main_a main_x) 154)), 79241#(and (not (= main_x main_y)) (<= (select main_a main_x) 157)), 79240#(and (<= (select main_a main_x) 156) (not (= main_x main_y))), 79243#(and (<= (select main_a main_x) 159) (not (= main_x main_y))), 79242#(and (<= (select main_a main_x) 158) (not (= main_x main_y))), 79245#(and (<= (select main_a main_x) 161) (not (= main_x main_y))), 79244#(and (not (= main_x main_y)) (<= (select main_a main_x) 160)), 79247#(and (<= (select main_a main_x) 163) (not (= main_x main_y))), 79246#(and (not (= main_x main_y)) (<= (select main_a main_x) 162)), 79249#(and (<= (select main_a main_x) 165) (not (= main_x main_y))), 79248#(and (<= (select main_a main_x) 164) (not (= main_x main_y))), 79251#(and (not (= main_x main_y)) (<= (select main_a main_x) 167)), 79250#(and (not (= main_x main_y)) (<= (select main_a main_x) 166)), 79253#(and (not (= main_x main_y)) (<= (select main_a main_x) 169)), 79252#(and (<= (select main_a main_x) 168) (not (= main_x main_y))), 79255#(and (not (= main_x main_y)) (<= (select main_a main_x) 171)), 79254#(and (not (= main_x main_y)) (<= (select main_a main_x) 170)), 79257#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 79256#(and (not (= main_x main_y)) (<= (select main_a main_x) 172)), 79083#false, 79082#true, 79085#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 79084#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 79087#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 79086#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 79089#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 79088#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 79091#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 79090#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 79093#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 79092#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 79095#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 79094#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 79097#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 79096#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 79099#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 79098#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 79101#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 79100#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 79103#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 79102#(and (<= (select main_a main_x) 18) (not (= main_x main_y)))] [2018-07-23 13:56:07,212 INFO L134 CoverageAnalysis]: Checked inductivity of 15051 backedges. 0 proven. 15051 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:07,212 INFO L450 AbstractCegarLoop]: Interpolant automaton has 176 states [2018-07-23 13:56:07,214 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 176 interpolants. [2018-07-23 13:56:07,215 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15400, Invalid=15400, Unknown=0, NotChecked=0, Total=30800 [2018-07-23 13:56:07,215 INFO L87 Difference]: Start difference. First operand 177 states and 177 transitions. Second operand 176 states. [2018-07-23 13:56:07,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:56:07,880 INFO L93 Difference]: Finished difference Result 180 states and 180 transitions. [2018-07-23 13:56:07,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 176 states. [2018-07-23 13:56:07,880 INFO L78 Accepts]: Start accepts. Automaton has 176 states. Word has length 176 [2018-07-23 13:56:07,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:56:07,880 INFO L225 Difference]: With dead ends: 180 [2018-07-23 13:56:07,881 INFO L226 Difference]: Without dead ends: 178 [2018-07-23 13:56:07,881 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 174 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=15400, Invalid=15400, Unknown=0, NotChecked=0, Total=30800 [2018-07-23 13:56:07,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2018-07-23 13:56:07,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2018-07-23 13:56:07,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2018-07-23 13:56:07,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 178 transitions. [2018-07-23 13:56:07,887 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 178 transitions. Word has length 176 [2018-07-23 13:56:07,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:56:07,888 INFO L471 AbstractCegarLoop]: Abstraction has 178 states and 178 transitions. [2018-07-23 13:56:07,888 INFO L472 AbstractCegarLoop]: Interpolant automaton has 176 states. [2018-07-23 13:56:07,888 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 178 transitions. [2018-07-23 13:56:07,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2018-07-23 13:56:07,888 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:56:07,888 INFO L357 BasicCegarLoop]: trace histogram [174, 1, 1, 1] [2018-07-23 13:56:07,888 INFO L414 AbstractCegarLoop]: === Iteration 175 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:56:07,889 INFO L82 PathProgramCache]: Analyzing trace with hash -1162714464, now seen corresponding path program 174 times [2018-07-23 13:56:07,889 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:56:08,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:56:11,314 INFO L134 CoverageAnalysis]: Checked inductivity of 15225 backedges. 0 proven. 15225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:11,314 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:56:11,314 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [176] total 176 [2018-07-23 13:56:11,314 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:56:11,315 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 13:56:11,315 INFO L185 omatonBuilderFactory]: Interpolants [80129#(and (<= (select main_a main_x) 153) (not (= main_x main_y))), 80128#(and (<= (select main_a main_x) 152) (not (= main_x main_y))), 80131#(and (<= (select main_a main_x) 155) (not (= main_x main_y))), 80130#(and (not (= main_x main_y)) (<= (select main_a main_x) 154)), 80133#(and (not (= main_x main_y)) (<= (select main_a main_x) 157)), 80132#(and (<= (select main_a main_x) 156) (not (= main_x main_y))), 80135#(and (<= (select main_a main_x) 159) (not (= main_x main_y))), 80134#(and (<= (select main_a main_x) 158) (not (= main_x main_y))), 80137#(and (<= (select main_a main_x) 161) (not (= main_x main_y))), 80136#(and (not (= main_x main_y)) (<= (select main_a main_x) 160)), 80139#(and (<= (select main_a main_x) 163) (not (= main_x main_y))), 80138#(and (not (= main_x main_y)) (<= (select main_a main_x) 162)), 80141#(and (<= (select main_a main_x) 165) (not (= main_x main_y))), 80140#(and (<= (select main_a main_x) 164) (not (= main_x main_y))), 80143#(and (not (= main_x main_y)) (<= (select main_a main_x) 167)), 80142#(and (not (= main_x main_y)) (<= (select main_a main_x) 166)), 80145#(and (not (= main_x main_y)) (<= (select main_a main_x) 169)), 80144#(and (<= (select main_a main_x) 168) (not (= main_x main_y))), 80147#(and (not (= main_x main_y)) (<= (select main_a main_x) 171)), 80146#(and (not (= main_x main_y)) (<= (select main_a main_x) 170)), 80149#(and (not (= main_x main_y)) (<= (select main_a main_x) 173)), 80148#(and (not (= main_x main_y)) (<= (select main_a main_x) 172)), 80150#(and (not (= (select main_a main_x) 1000)) (not (= main_x main_y))), 79975#false, 79974#true, 79977#(and (not (= main_x main_y)) (<= (select main_a main_x) 1)), 79976#(and (= 0 (select main_a main_x)) (not (= main_x main_y))), 79979#(and (not (= main_x main_y)) (<= (select main_a main_x) 3)), 79978#(and (not (= main_x main_y)) (<= (select main_a main_x) 2)), 79981#(and (<= (select main_a main_x) 5) (not (= main_x main_y))), 79980#(and (<= (select main_a main_x) 4) (not (= main_x main_y))), 79983#(and (<= (select main_a main_x) 7) (not (= main_x main_y))), 79982#(and (<= (select main_a main_x) 6) (not (= main_x main_y))), 79985#(and (not (= main_x main_y)) (<= (select main_a main_x) 9)), 79984#(and (<= (select main_a main_x) 8) (not (= main_x main_y))), 79987#(and (not (= main_x main_y)) (<= (select main_a main_x) 11)), 79986#(and (not (= main_x main_y)) (<= (select main_a main_x) 10)), 79989#(and (not (= main_x main_y)) (<= (select main_a main_x) 13)), 79988#(and (<= (select main_a main_x) 12) (not (= main_x main_y))), 79991#(and (not (= main_x main_y)) (<= (select main_a main_x) 15)), 79990#(and (<= (select main_a main_x) 14) (not (= main_x main_y))), 79993#(and (not (= main_x main_y)) (<= (select main_a main_x) 17)), 79992#(and (<= (select main_a main_x) 16) (not (= main_x main_y))), 79995#(and (<= (select main_a main_x) 19) (not (= main_x main_y))), 79994#(and (<= (select main_a main_x) 18) (not (= main_x main_y))), 79997#(and (<= (select main_a main_x) 21) (not (= main_x main_y))), 79996#(and (not (= main_x main_y)) (<= (select main_a main_x) 20)), 79999#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 79998#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 80001#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 80000#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 80003#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 80002#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 80005#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 80004#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 80007#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 80006#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 80009#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 80008#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 80011#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 80010#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 80013#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 80012#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 80015#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 80014#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 80017#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 80016#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 80019#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 80018#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 80021#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 80020#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 80023#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 80022#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 80025#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 80024#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 80027#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 80026#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 80029#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 80028#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 80031#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 80030#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 80033#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 80032#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 80035#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 80034#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 80037#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 80036#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 80039#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 80038#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 80041#(and (<= (select main_a main_x) 65) (not (= main_x main_y))), 80040#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 80043#(and (<= (select main_a main_x) 67) (not (= main_x main_y))), 80042#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 80045#(and (not (= main_x main_y)) (<= (select main_a main_x) 69)), 80044#(and (not (= main_x main_y)) (<= (select main_a main_x) 68)), 80047#(and (<= (select main_a main_x) 71) (not (= main_x main_y))), 80046#(and (<= (select main_a main_x) 70) (not (= main_x main_y))), 80049#(and (not (= main_x main_y)) (<= (select main_a main_x) 73)), 80048#(and (not (= main_x main_y)) (<= (select main_a main_x) 72)), 80051#(and (not (= main_x main_y)) (<= (select main_a main_x) 75)), 80050#(and (not (= main_x main_y)) (<= (select main_a main_x) 74)), 80053#(and (<= (select main_a main_x) 77) (not (= main_x main_y))), 80052#(and (<= (select main_a main_x) 76) (not (= main_x main_y))), 80055#(and (<= (select main_a main_x) 79) (not (= main_x main_y))), 80054#(and (<= (select main_a main_x) 78) (not (= main_x main_y))), 80057#(and (<= (select main_a main_x) 81) (not (= main_x main_y))), 80056#(and (not (= main_x main_y)) (<= (select main_a main_x) 80)), 80059#(and (not (= main_x main_y)) (<= (select main_a main_x) 83)), 80058#(and (<= (select main_a main_x) 82) (not (= main_x main_y))), 80061#(and (<= (select main_a main_x) 85) (not (= main_x main_y))), 80060#(and (<= (select main_a main_x) 84) (not (= main_x main_y))), 80063#(and (<= (select main_a main_x) 87) (not (= main_x main_y))), 80062#(and (<= (select main_a main_x) 86) (not (= main_x main_y))), 80065#(and (not (= main_x main_y)) (<= (select main_a main_x) 89)), 80064#(and (not (= main_x main_y)) (<= (select main_a main_x) 88)), 80067#(and (not (= main_x main_y)) (<= (select main_a main_x) 91)), 80066#(and (<= (select main_a main_x) 90) (not (= main_x main_y))), 80069#(and (<= (select main_a main_x) 93) (not (= main_x main_y))), 80068#(and (not (= main_x main_y)) (<= (select main_a main_x) 92)), 80071#(and (<= (select main_a main_x) 95) (not (= main_x main_y))), 80070#(and (not (= main_x main_y)) (<= (select main_a main_x) 94)), 80073#(and (not (= main_x main_y)) (<= (select main_a main_x) 97)), 80072#(and (<= (select main_a main_x) 96) (not (= main_x main_y))), 80075#(and (<= (select main_a main_x) 99) (not (= main_x main_y))), 80074#(and (<= (select main_a main_x) 98) (not (= main_x main_y))), 80077#(and (<= (select main_a main_x) 101) (not (= main_x main_y))), 80076#(and (<= (select main_a main_x) 100) (not (= main_x main_y))), 80079#(and (<= (select main_a main_x) 103) (not (= main_x main_y))), 80078#(and (not (= main_x main_y)) (<= (select main_a main_x) 102)), 80081#(and (not (= main_x main_y)) (<= (select main_a main_x) 105)), 80080#(and (not (= main_x main_y)) (<= (select main_a main_x) 104)), 80083#(and (<= (select main_a main_x) 107) (not (= main_x main_y))), 80082#(and (not (= main_x main_y)) (<= (select main_a main_x) 106)), 80085#(and (not (= main_x main_y)) (<= (select main_a main_x) 109)), 80084#(and (<= (select main_a main_x) 108) (not (= main_x main_y))), 80087#(and (<= (select main_a main_x) 111) (not (= main_x main_y))), 80086#(and (not (= main_x main_y)) (<= (select main_a main_x) 110)), 80089#(and (<= (select main_a main_x) 113) (not (= main_x main_y))), 80088#(and (<= (select main_a main_x) 112) (not (= main_x main_y))), 80091#(and (not (= main_x main_y)) (<= (select main_a main_x) 115)), 80090#(and (not (= main_x main_y)) (<= (select main_a main_x) 114)), 80093#(and (not (= main_x main_y)) (<= (select main_a main_x) 117)), 80092#(and (<= (select main_a main_x) 116) (not (= main_x main_y))), 80095#(and (not (= main_x main_y)) (<= (select main_a main_x) 119)), 80094#(and (not (= main_x main_y)) (<= (select main_a main_x) 118)), 80097#(and (not (= main_x main_y)) (<= (select main_a main_x) 121)), 80096#(and (<= (select main_a main_x) 120) (not (= main_x main_y))), 80099#(and (not (= main_x main_y)) (<= (select main_a main_x) 123)), 80098#(and (not (= main_x main_y)) (<= (select main_a main_x) 122)), 80101#(and (not (= main_x main_y)) (<= (select main_a main_x) 125)), 80100#(and (not (= main_x main_y)) (<= (select main_a main_x) 124)), 80103#(and (<= (select main_a main_x) 127) (not (= main_x main_y))), 80102#(and (not (= main_x main_y)) (<= (select main_a main_x) 126)), 80105#(and (not (= main_x main_y)) (<= (select main_a main_x) 129)), 80104#(and (not (= main_x main_y)) (<= (select main_a main_x) 128)), 80107#(and (<= (select main_a main_x) 131) (not (= main_x main_y))), 80106#(and (not (= main_x main_y)) (<= (select main_a main_x) 130)), 80109#(and (not (= main_x main_y)) (<= (select main_a main_x) 133)), 80108#(and (<= (select main_a main_x) 132) (not (= main_x main_y))), 80111#(and (not (= main_x main_y)) (<= (select main_a main_x) 135)), 80110#(and (not (= main_x main_y)) (<= (select main_a main_x) 134)), 80113#(and (<= (select main_a main_x) 137) (not (= main_x main_y))), 80112#(and (<= (select main_a main_x) 136) (not (= main_x main_y))), 80115#(and (not (= main_x main_y)) (<= (select main_a main_x) 139)), 80114#(and (not (= main_x main_y)) (<= (select main_a main_x) 138)), 80117#(and (<= (select main_a main_x) 141) (not (= main_x main_y))), 80116#(and (not (= main_x main_y)) (<= (select main_a main_x) 140)), 80119#(and (not (= main_x main_y)) (<= (select main_a main_x) 143)), 80118#(and (not (= main_x main_y)) (<= (select main_a main_x) 142)), 80121#(and (not (= main_x main_y)) (<= (select main_a main_x) 145)), 80120#(and (<= (select main_a main_x) 144) (not (= main_x main_y))), 80123#(and (not (= main_x main_y)) (<= (select main_a main_x) 147)), 80122#(and (<= (select main_a main_x) 146) (not (= main_x main_y))), 80125#(and (not (= main_x main_y)) (<= (select main_a main_x) 149)), 80124#(and (<= (select main_a main_x) 148) (not (= main_x main_y))), 80127#(and (<= (select main_a main_x) 151) (not (= main_x main_y))), 80126#(and (not (= main_x main_y)) (<= (select main_a main_x) 150))] [2018-07-23 13:56:11,316 INFO L134 CoverageAnalysis]: Checked inductivity of 15225 backedges. 0 proven. 15225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:11,317 INFO L450 AbstractCegarLoop]: Interpolant automaton has 177 states [2018-07-23 13:56:11,319 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 177 interpolants. [2018-07-23 13:56:11,320 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15576, Invalid=15576, Unknown=0, NotChecked=0, Total=31152 [2018-07-23 13:56:11,321 INFO L87 Difference]: Start difference. First operand 178 states and 178 transitions. Second operand 177 states. [2018-07-23 13:56:11,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:56:11,850 INFO L93 Difference]: Finished difference Result 181 states and 181 transitions. [2018-07-23 13:56:11,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 177 states. [2018-07-23 13:56:11,850 INFO L78 Accepts]: Start accepts. Automaton has 177 states. Word has length 177 [2018-07-23 13:56:11,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:56:11,850 INFO L225 Difference]: With dead ends: 181 [2018-07-23 13:56:11,850 INFO L226 Difference]: Without dead ends: 179 [2018-07-23 13:56:11,852 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 175 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=15576, Invalid=15576, Unknown=0, NotChecked=0, Total=31152 [2018-07-23 13:56:11,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2018-07-23 13:56:11,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2018-07-23 13:56:11,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2018-07-23 13:56:11,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 179 transitions. [2018-07-23 13:56:11,901 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 179 transitions. Word has length 177 [2018-07-23 13:56:11,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:56:11,901 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 179 transitions. [2018-07-23 13:56:11,901 INFO L472 AbstractCegarLoop]: Interpolant automaton has 177 states. [2018-07-23 13:56:11,901 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 179 transitions. [2018-07-23 13:56:11,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2018-07-23 13:56:11,901 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:56:11,902 INFO L357 BasicCegarLoop]: trace histogram [175, 1, 1, 1] [2018-07-23 13:56:11,902 INFO L414 AbstractCegarLoop]: === Iteration 176 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:56:11,902 INFO L82 PathProgramCache]: Analyzing trace with hash -1684413882, now seen corresponding path program 175 times [2018-07-23 13:56:11,902 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:56:12,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:56:15,336 INFO L134 CoverageAnalysis]: Checked inductivity of 15400 backedges. 0 proven. 15400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:15,337 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:56:15,337 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [177] total 177 [2018-07-23 13:56:15,337 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:56:15,337 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 13:56:15,338 INFO L185 omatonBuilderFactory]: Interpolants [80897#(and (<= (select main_a main_x) 24) (not (= main_x main_y))), 80896#(and (not (= main_x main_y)) (<= (select main_a main_x) 23)), 80899#(and (<= (select main_a main_x) 26) (not (= main_x main_y))), 80898#(and (not (= main_x main_y)) (<= (select main_a main_x) 25)), 80901#(and (<= (select main_a main_x) 28) (not (= main_x main_y))), 80900#(and (<= (select main_a main_x) 27) (not (= main_x main_y))), 80903#(and (not (= main_x main_y)) (<= (select main_a main_x) 30)), 80902#(and (<= (select main_a main_x) 29) (not (= main_x main_y))), 80905#(and (<= (select main_a main_x) 32) (not (= main_x main_y))), 80904#(and (<= (select main_a main_x) 31) (not (= main_x main_y))), 80907#(and (<= (select main_a main_x) 34) (not (= main_x main_y))), 80906#(and (<= (select main_a main_x) 33) (not (= main_x main_y))), 80909#(and (<= (select main_a main_x) 36) (not (= main_x main_y))), 80908#(and (<= (select main_a main_x) 35) (not (= main_x main_y))), 80911#(and (<= (select main_a main_x) 38) (not (= main_x main_y))), 80910#(and (<= (select main_a main_x) 37) (not (= main_x main_y))), 80913#(and (<= (select main_a main_x) 40) (not (= main_x main_y))), 80912#(and (<= (select main_a main_x) 39) (not (= main_x main_y))), 80915#(and (<= (select main_a main_x) 42) (not (= main_x main_y))), 80914#(and (<= (select main_a main_x) 41) (not (= main_x main_y))), 80917#(and (not (= main_x main_y)) (<= (select main_a main_x) 44)), 80916#(and (not (= main_x main_y)) (<= (select main_a main_x) 43)), 80919#(and (<= (select main_a main_x) 46) (not (= main_x main_y))), 80918#(and (not (= main_x main_y)) (<= (select main_a main_x) 45)), 80921#(and (<= (select main_a main_x) 48) (not (= main_x main_y))), 80920#(and (not (= main_x main_y)) (<= (select main_a main_x) 47)), 80923#(and (<= (select main_a main_x) 50) (not (= main_x main_y))), 80922#(and (<= (select main_a main_x) 49) (not (= main_x main_y))), 80925#(and (not (= main_x main_y)) (<= (select main_a main_x) 52)), 80924#(and (<= (select main_a main_x) 51) (not (= main_x main_y))), 80927#(and (<= (select main_a main_x) 54) (not (= main_x main_y))), 80926#(and (<= (select main_a main_x) 53) (not (= main_x main_y))), 80929#(and (not (= main_x main_y)) (<= (select main_a main_x) 56)), 80928#(and (<= (select main_a main_x) 55) (not (= main_x main_y))), 80931#(and (<= (select main_a main_x) 58) (not (= main_x main_y))), 80930#(and (<= (select main_a main_x) 57) (not (= main_x main_y))), 80933#(and (not (= main_x main_y)) (<= (select main_a main_x) 60)), 80932#(and (not (= main_x main_y)) (<= (select main_a main_x) 59)), 80935#(and (not (= main_x main_y)) (<= (select main_a main_x) 62)), 80934#(and (not (= main_x main_y)) (<= (select main_a main_x) 61)), 80937#(and (not (= main_x main_y)) (<= (select main_a main_x) 64)), 80936#(and (<= (select main_a main_x) 63) (not (= main_x main_y))), 80939#(and (not (= main_x main_y)) (<= (select main_a main_x) 66)), 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(not (= main_x main_y))), 80895#(and (not (= main_x main_y)) (<= (select main_a main_x) 22)), 80894#(and (<= (select main_a main_x) 21) (not (= main_x main_y)))] [2018-07-23 13:56:15,339 INFO L134 CoverageAnalysis]: Checked inductivity of 15400 backedges. 0 proven. 15400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:15,339 INFO L450 AbstractCegarLoop]: Interpolant automaton has 178 states [2018-07-23 13:56:15,342 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 178 interpolants. [2018-07-23 13:56:15,343 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15753, Invalid=15753, Unknown=0, NotChecked=0, Total=31506 [2018-07-23 13:56:15,343 INFO L87 Difference]: Start difference. First operand 179 states and 179 transitions. Second operand 178 states. [2018-07-23 13:56:16,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:56:16,052 INFO L93 Difference]: Finished difference Result 182 states and 182 transitions. [2018-07-23 13:56:16,052 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 178 states. [2018-07-23 13:56:16,052 INFO L78 Accepts]: Start accepts. Automaton has 178 states. Word has length 178 [2018-07-23 13:56:16,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:56:16,053 INFO L225 Difference]: With dead ends: 182 [2018-07-23 13:56:16,053 INFO L226 Difference]: Without dead ends: 180 [2018-07-23 13:56:16,055 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 176 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=15753, Invalid=15753, Unknown=0, NotChecked=0, Total=31506 [2018-07-23 13:56:16,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2018-07-23 13:56:16,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2018-07-23 13:56:16,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2018-07-23 13:56:16,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 180 transitions. [2018-07-23 13:56:16,061 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 180 transitions. Word has length 178 [2018-07-23 13:56:16,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:56:16,061 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 180 transitions. [2018-07-23 13:56:16,061 INFO L472 AbstractCegarLoop]: Interpolant automaton has 178 states. [2018-07-23 13:56:16,061 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 180 transitions. [2018-07-23 13:56:16,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2018-07-23 13:56:16,062 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:56:16,062 INFO L357 BasicCegarLoop]: trace histogram [176, 1, 1, 1] [2018-07-23 13:56:16,062 INFO L414 AbstractCegarLoop]: === Iteration 177 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:56:16,062 INFO L82 PathProgramCache]: Analyzing trace with hash -677226656, now seen corresponding path program 176 times [2018-07-23 13:56:16,062 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:56:16,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2018-07-23 13:56:17,268 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-23 13:56:17,273 WARN L202 ceAbstractionStarter]: Timeout [2018-07-23 13:56:17,273 INFO L202 PluginConnector]: Adding new model Luxembourg-WithArrays.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 01:56:17 BoogieIcfgContainer [2018-07-23 13:56:17,273 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 13:56:17,274 INFO L168 Benchmark]: Toolchain (without parser) took 249566.77 ms. Allocated memory was 1.5 GB in the beginning and 3.6 GB in the end (delta: 2.0 GB). Free memory was 1.5 GB in the beginning and 2.8 GB in the end (delta: -1.3 GB). Peak memory consumption was 718.4 MB. Max. memory is 7.1 GB. [2018-07-23 13:56:17,276 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 13:56:17,277 INFO L168 Benchmark]: Boogie Preprocessor took 54.57 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 13:56:17,277 INFO L168 Benchmark]: RCFGBuilder took 211.92 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-07-23 13:56:17,277 INFO L168 Benchmark]: TraceAbstraction took 249295.05 ms. Allocated memory was 1.5 GB in the beginning and 3.6 GB in the end (delta: 2.0 GB). Free memory was 1.4 GB in the beginning and 2.8 GB in the end (delta: -1.4 GB). Peak memory consumption was 655.3 MB. Max. memory is 7.1 GB. [2018-07-23 13:56:17,282 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 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 54.57 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 211.92 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 249295.05 ms. Allocated memory was 1.5 GB in the beginning and 3.6 GB in the end (delta: 2.0 GB). Free memory was 1.4 GB in the beginning and 2.8 GB in the end (delta: -1.4 GB). Peak memory consumption was 655.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 27]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 27). Cancelled while BasicCegarLoop was analyzing trace of length 180 with TraceHistMax 176, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateComparison was comparing new predicate (quantifier-free) to 90 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. TIMEOUT Result, 249.2s OverallTime, 177 OverallIterations, 176 TraceHistogramMax, 23.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 530 SDtfs, 2 SDslu, 1 SDs, 0 SdLazy, 36033 SolverSat, 287 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15752 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 15576 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 188.4s Time, 0.2s BasicInterpolantAutomatonTime, BiggestAbstraction: size=180occurred in iteration=176, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/908600 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 176 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 15.9s SatisfiabilityAnalysisTime, 202.2s InterpolantComputationTime, 15928 NumberOfCodeBlocks, 15928 NumberOfCodeBlocksAsserted, 176 NumberOfCheckSat, 15752 ConstructedInterpolants, 0 QuantifiedInterpolants, 18515022 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 176 InterpolantComputations, 1 PerfectInterpolantSequences, 0/908600 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/Luxembourg-WithArrays.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-07-23_13-56-17-298.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Luxembourg-WithArrays.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_13-56-17-298.csv Completed graceful shutdown