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-ArraysIntegefied.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-935f392 [2018-07-23 13:51:54,333 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 13:51:54,336 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 13:51:54,359 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 13:51:54,360 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 13:51:54,361 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 13:51:54,363 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 13:51:54,365 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 13:51:54,368 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 13:51:54,369 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 13:51:54,377 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 13:51:54,377 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 13:51:54,379 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 13:51:54,379 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 13:51:54,381 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 13:51:54,381 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 13:51:54,382 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 13:51:54,384 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 13:51:54,386 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 13:51:54,387 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 13:51:54,389 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 13:51:54,390 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 13:51:54,392 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 13:51:54,392 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 13:51:54,393 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 13:51:54,394 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 13:51:54,394 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 13:51:54,395 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 13:51:54,396 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 13:51:54,397 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 13:51:54,398 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 13:51:54,398 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-23 13:51:54,401 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 13:51:54,417 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 13:51:54,418 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 13:51:54,420 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 13:51:54,420 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-07-23 13:51:54,420 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 13:51:54,421 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-07-23 13:51:54,421 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-23 13:51:54,421 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 13:51:54,495 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 13:51:54,513 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 13:51:54,520 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 13:51:54,521 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-23 13:51:54,522 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-23 13:51:54,523 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/Luxembourg-ArraysIntegefied.bpl [2018-07-23 13:51:54,523 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/Luxembourg-ArraysIntegefied.bpl' [2018-07-23 13:51:54,585 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 13:51:54,587 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-07-23 13:51:54,588 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 13:51:54,589 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 13:51:54,589 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 13:51:54,619 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:51:54" (1/1) ... [2018-07-23 13:51:54,621 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:51:54" (1/1) ... [2018-07-23 13:51:54,632 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:51:54" (1/1) ... [2018-07-23 13:51:54,633 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:51:54" (1/1) ... [2018-07-23 13:51:54,636 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:51:54" (1/1) ... [2018-07-23 13:51:54,641 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:51:54" (1/1) ... [2018-07-23 13:51:54,642 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:51:54" (1/1) ... [2018-07-23 13:51:54,644 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 13:51:54,645 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 13:51:54,645 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 13:51:54,645 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 13:51:54,646 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:51:54" (1/1) ... [2018-07-23 13:51:54,730 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2018-07-23 13:51:54,731 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-23 13:51:54,731 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-23 13:51:54,976 INFO L258 CfgBuilder]: Using library mode [2018-07-23 13:51:54,977 INFO L202 PluginConnector]: Adding new model Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:51:54 BoogieIcfgContainer [2018-07-23 13:51:54,978 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 13:51:54,979 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 13:51:54,979 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 13:51:54,983 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 13:51:54,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:51:54" (1/2) ... [2018-07-23 13:51:54,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@253ed565 and model type Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:51:54, skipping insertion in model container [2018-07-23 13:51:54,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:51:54" (2/2) ... [2018-07-23 13:51:54,987 INFO L112 eAbstractionObserver]: Analyzing ICFG Luxembourg-ArraysIntegefied.bpl [2018-07-23 13:51:54,997 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-07-23 13:51:55,006 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 13:51:55,048 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 13:51:55,049 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 13:51:55,050 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 13:51:55,050 INFO L375 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-07-23 13:51:55,050 INFO L376 AbstractCegarLoop]: Backedges is CANONICAL [2018-07-23 13:51:55,050 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 13:51:55,050 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 13:51:55,051 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 13:51:55,051 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 13:51:55,066 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-07-23 13:51:55,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-07-23 13:51:55,074 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:55,075 INFO L357 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-07-23 13:51:55,076 INFO L414 AbstractCegarLoop]: === Iteration 1 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:55,081 INFO L82 PathProgramCache]: Analyzing trace with hash 73132, now seen corresponding path program 1 times [2018-07-23 13:51:55,088 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:55,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:55,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:55,161 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 13:51:55,161 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-23 13:51:55,163 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:55,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:55,164 INFO L185 omatonBuilderFactory]: Interpolants [9#true, 10#false, 11#(not (= main_a_x 1000))] [2018-07-23 13:51:55,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:55,165 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 13:51:55,177 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 13:51:55,177 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 13:51:55,180 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 3 states. [2018-07-23 13:51:55,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:55,216 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2018-07-23 13:51:55,217 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 13:51:55,218 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2018-07-23 13:51:55,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:55,230 INFO L225 Difference]: With dead ends: 13 [2018-07-23 13:51:55,231 INFO L226 Difference]: Without dead ends: 5 [2018-07-23 13:51:55,234 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 13:51:55,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2018-07-23 13:51:55,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2018-07-23 13:51:55,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-07-23 13:51:55,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2018-07-23 13:51:55,269 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2018-07-23 13:51:55,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:55,270 INFO L471 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2018-07-23 13:51:55,270 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 13:51:55,270 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2018-07-23 13:51:55,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-23 13:51:55,271 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:55,271 INFO L357 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-07-23 13:51:55,272 INFO L414 AbstractCegarLoop]: === Iteration 2 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:55,272 INFO L82 PathProgramCache]: Analyzing trace with hash 2282471, now seen corresponding path program 1 times [2018-07-23 13:51:55,272 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:55,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:55,328 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 13:51:55,328 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:55,329 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2018-07-23 13:51:55,329 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:55,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:55,329 INFO L185 omatonBuilderFactory]: Interpolants [48#true, 49#false, 50#(and (not (= main_x main_y)) (<= main_a_x 0)), 51#(<= main_a_x 1)] [2018-07-23 13:51:55,330 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 13:51:55,332 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 13:51:55,332 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 13:51:55,332 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 13:51:55,333 INFO L87 Difference]: Start difference. First operand 5 states and 5 transitions. Second operand 4 states. [2018-07-23 13:51:55,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:55,365 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2018-07-23 13:51:55,365 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 13:51:55,365 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2018-07-23 13:51:55,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:55,366 INFO L225 Difference]: With dead ends: 8 [2018-07-23 13:51:55,366 INFO L226 Difference]: Without dead ends: 6 [2018-07-23 13:51:55,369 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 13:51:55,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2018-07-23 13:51:55,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2018-07-23 13:51:55,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-07-23 13:51:55,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2018-07-23 13:51:55,373 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2018-07-23 13:51:55,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:55,373 INFO L471 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2018-07-23 13:51:55,373 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 13:51:55,373 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2018-07-23 13:51:55,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-07-23 13:51:55,374 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:55,374 INFO L357 BasicCegarLoop]: trace histogram [2, 1, 1, 1] [2018-07-23 13:51:55,374 INFO L414 AbstractCegarLoop]: === Iteration 3 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:55,375 INFO L82 PathProgramCache]: Analyzing trace with hash 70771980, now seen corresponding path program 2 times [2018-07-23 13:51:55,375 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:55,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:55,440 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 13:51:55,440 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:55,441 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2018-07-23 13:51:55,441 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:55,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:55,442 INFO L185 omatonBuilderFactory]: Interpolants [80#true, 81#false, 82#(and (not (= main_x main_y)) (<= main_a_x 0)), 83#(and (not (= main_x main_y)) (<= main_a_x 1)), 84#(<= main_a_x 2)] [2018-07-23 13:51:55,442 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 13:51:55,442 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-23 13:51:55,442 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-23 13:51:55,443 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-23 13:51:55,443 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand 5 states. [2018-07-23 13:51:55,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:55,476 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2018-07-23 13:51:55,476 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-23 13:51:55,476 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 5 [2018-07-23 13:51:55,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:55,477 INFO L225 Difference]: With dead ends: 9 [2018-07-23 13:51:55,477 INFO L226 Difference]: Without dead ends: 7 [2018-07-23 13:51:55,478 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 13:51:55,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-07-23 13:51:55,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-07-23 13:51:55,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-07-23 13:51:55,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-07-23 13:51:55,483 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2018-07-23 13:51:55,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:55,484 INFO L471 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-07-23 13:51:55,484 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-23 13:51:55,484 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-07-23 13:51:55,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-23 13:51:55,485 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:55,485 INFO L357 BasicCegarLoop]: trace histogram [3, 1, 1, 1] [2018-07-23 13:51:55,485 INFO L414 AbstractCegarLoop]: === Iteration 4 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:55,485 INFO L82 PathProgramCache]: Analyzing trace with hash -2101020537, now seen corresponding path program 3 times [2018-07-23 13:51:55,486 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:55,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:55,592 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 13:51:55,593 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:55,593 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-07-23 13:51:55,593 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:55,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:55,594 INFO L185 omatonBuilderFactory]: Interpolants [117#true, 118#false, 119#(and (not (= main_x main_y)) (<= main_a_x 0)), 120#(and (not (= main_x main_y)) (<= main_a_x 1)), 121#(and (not (= main_x main_y)) (<= main_a_x 2)), 122#(<= main_a_x 3)] [2018-07-23 13:51:55,594 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 13:51:55,594 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 13:51:55,595 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 13:51:55,595 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-07-23 13:51:55,595 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 6 states. [2018-07-23 13:51:55,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:55,609 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2018-07-23 13:51:55,609 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-23 13:51:55,610 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 6 [2018-07-23 13:51:55,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:55,610 INFO L225 Difference]: With dead ends: 10 [2018-07-23 13:51:55,611 INFO L226 Difference]: Without dead ends: 8 [2018-07-23 13:51:55,611 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 13:51:55,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-07-23 13:51:55,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-07-23 13:51:55,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-07-23 13:51:55,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2018-07-23 13:51:55,615 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2018-07-23 13:51:55,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:55,615 INFO L471 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2018-07-23 13:51:55,615 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 13:51:55,615 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2018-07-23 13:51:55,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-07-23 13:51:55,616 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:55,616 INFO L357 BasicCegarLoop]: trace histogram [4, 1, 1, 1] [2018-07-23 13:51:55,616 INFO L414 AbstractCegarLoop]: === Iteration 5 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:55,617 INFO L82 PathProgramCache]: Analyzing trace with hash -707111828, now seen corresponding path program 4 times [2018-07-23 13:51:55,617 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:55,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:55,735 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 13:51:55,735 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:55,736 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2018-07-23 13:51:55,736 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:55,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:55,737 INFO L185 omatonBuilderFactory]: Interpolants [160#false, 161#(and (not (= main_x main_y)) (<= main_a_x 0)), 162#(and (not (= main_x main_y)) (<= main_a_x 1)), 163#(and (not (= main_x main_y)) (<= main_a_x 2)), 164#(and (not (= main_x main_y)) (<= main_a_x 3)), 165#(<= main_a_x 4), 159#true] [2018-07-23 13:51:55,737 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 13:51:55,737 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-23 13:51:55,738 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-23 13:51:55,738 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-07-23 13:51:55,738 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 7 states. [2018-07-23 13:51:55,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:55,753 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2018-07-23 13:51:55,753 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 13:51:55,753 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 7 [2018-07-23 13:51:55,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:55,754 INFO L225 Difference]: With dead ends: 11 [2018-07-23 13:51:55,754 INFO L226 Difference]: Without dead ends: 9 [2018-07-23 13:51:55,757 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 13:51:55,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2018-07-23 13:51:55,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-07-23 13:51:55,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-07-23 13:51:55,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-07-23 13:51:55,761 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2018-07-23 13:51:55,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:55,761 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2018-07-23 13:51:55,761 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-23 13:51:55,761 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2018-07-23 13:51:55,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-07-23 13:51:55,762 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:55,762 INFO L357 BasicCegarLoop]: trace histogram [5, 1, 1, 1] [2018-07-23 13:51:55,763 INFO L414 AbstractCegarLoop]: === Iteration 6 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:55,763 INFO L82 PathProgramCache]: Analyzing trace with hash -445614809, now seen corresponding path program 5 times [2018-07-23 13:51:55,763 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:55,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:55,888 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 13:51:55,889 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:55,889 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2018-07-23 13:51:55,889 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:55,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:55,890 INFO L185 omatonBuilderFactory]: Interpolants [208#(and (not (= main_x main_y)) (<= main_a_x 0)), 209#(and (not (= main_x main_y)) (<= main_a_x 1)), 210#(and (not (= main_x main_y)) (<= main_a_x 2)), 211#(and (not (= main_x main_y)) (<= main_a_x 3)), 212#(and (<= main_a_x 4) (not (= main_x main_y))), 213#(<= main_a_x 5), 206#true, 207#false] [2018-07-23 13:51:55,890 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 13:51:55,891 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-23 13:51:55,891 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-23 13:51:55,891 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-07-23 13:51:55,892 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 8 states. [2018-07-23 13:51:55,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:55,905 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2018-07-23 13:51:55,906 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-23 13:51:55,906 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 8 [2018-07-23 13:51:55,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:55,907 INFO L225 Difference]: With dead ends: 12 [2018-07-23 13:51:55,907 INFO L226 Difference]: Without dead ends: 10 [2018-07-23 13:51:55,908 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 13:51:55,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2018-07-23 13:51:55,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-07-23 13:51:55,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-07-23 13:51:55,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2018-07-23 13:51:55,911 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2018-07-23 13:51:55,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:55,912 INFO L471 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2018-07-23 13:51:55,912 INFO L472 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-23 13:51:55,912 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2018-07-23 13:51:55,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-07-23 13:51:55,913 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:55,913 INFO L357 BasicCegarLoop]: trace histogram [6, 1, 1, 1] [2018-07-23 13:51:55,913 INFO L414 AbstractCegarLoop]: === Iteration 7 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:55,914 INFO L82 PathProgramCache]: Analyzing trace with hash -929141812, now seen corresponding path program 6 times [2018-07-23 13:51:55,914 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:55,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:55,999 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 13:51:56,000 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:56,000 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2018-07-23 13:51:56,001 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:56,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:56,001 INFO L185 omatonBuilderFactory]: Interpolants [258#true, 259#false, 260#(and (not (= main_x main_y)) (<= main_a_x 0)), 261#(and (not (= main_x main_y)) (<= main_a_x 1)), 262#(and (not (= main_x main_y)) (<= main_a_x 2)), 263#(and (not (= main_x main_y)) (<= main_a_x 3)), 264#(and (<= main_a_x 4) (not (= main_x main_y))), 265#(and (<= main_a_x 5) (not (= main_x main_y))), 266#(<= main_a_x 6)] [2018-07-23 13:51:56,002 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 13:51:56,002 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-23 13:51:56,003 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-23 13:51:56,003 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2018-07-23 13:51:56,003 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 9 states. [2018-07-23 13:51:56,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:56,018 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2018-07-23 13:51:56,018 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-07-23 13:51:56,019 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 9 [2018-07-23 13:51:56,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:56,019 INFO L225 Difference]: With dead ends: 13 [2018-07-23 13:51:56,020 INFO L226 Difference]: Without dead ends: 11 [2018-07-23 13:51:56,020 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2018-07-23 13:51:56,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2018-07-23 13:51:56,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-07-23 13:51:56,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-07-23 13:51:56,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-07-23 13:51:56,024 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 9 [2018-07-23 13:51:56,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:56,025 INFO L471 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2018-07-23 13:51:56,025 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-23 13:51:56,025 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2018-07-23 13:51:56,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-07-23 13:51:56,026 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:56,026 INFO L357 BasicCegarLoop]: trace histogram [7, 1, 1, 1] [2018-07-23 13:51:56,027 INFO L414 AbstractCegarLoop]: === Iteration 8 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:56,027 INFO L82 PathProgramCache]: Analyzing trace with hash 1261390279, now seen corresponding path program 7 times [2018-07-23 13:51:56,027 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:56,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:56,186 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 13:51:56,186 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:56,192 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2018-07-23 13:51:56,193 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:56,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:56,194 INFO L185 omatonBuilderFactory]: Interpolants [320#(and (not (= main_x main_y)) (<= main_a_x 3)), 321#(and (<= main_a_x 4) (not (= main_x main_y))), 322#(and (<= main_a_x 5) (not (= main_x main_y))), 323#(and (not (= main_x main_y)) (<= main_a_x 6)), 324#(<= main_a_x 7), 315#true, 316#false, 317#(and (not (= main_x main_y)) (<= main_a_x 0)), 318#(and (not (= main_x main_y)) (<= main_a_x 1)), 319#(and (not (= main_x main_y)) (<= main_a_x 2))] [2018-07-23 13:51:56,194 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 13:51:56,197 INFO L450 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-07-23 13:51:56,198 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-07-23 13:51:56,198 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2018-07-23 13:51:56,199 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 10 states. [2018-07-23 13:51:56,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:56,226 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2018-07-23 13:51:56,228 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-07-23 13:51:56,228 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 10 [2018-07-23 13:51:56,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:56,230 INFO L225 Difference]: With dead ends: 14 [2018-07-23 13:51:56,230 INFO L226 Difference]: Without dead ends: 12 [2018-07-23 13:51:56,230 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 13:51:56,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-07-23 13:51:56,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-07-23 13:51:56,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-07-23 13:51:56,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-07-23 13:51:56,239 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2018-07-23 13:51:56,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:56,240 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2018-07-23 13:51:56,240 INFO L472 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-07-23 13:51:56,240 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2018-07-23 13:51:56,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-07-23 13:51:56,241 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:56,241 INFO L357 BasicCegarLoop]: trace histogram [8, 1, 1, 1] [2018-07-23 13:51:56,242 INFO L414 AbstractCegarLoop]: === Iteration 9 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:56,242 INFO L82 PathProgramCache]: Analyzing trace with hash 448408364, now seen corresponding path program 8 times [2018-07-23 13:51:56,242 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:56,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:56,365 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 13:51:56,366 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:56,366 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2018-07-23 13:51:56,366 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:56,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:56,370 INFO L185 omatonBuilderFactory]: Interpolants [384#(and (<= main_a_x 5) (not (= main_x main_y))), 385#(and (not (= main_x main_y)) (<= main_a_x 6)), 386#(and (<= main_a_x 7) (not (= main_x main_y))), 387#(<= main_a_x 8), 377#true, 378#false, 379#(and (not (= main_x main_y)) (<= main_a_x 0)), 380#(and (not (= main_x main_y)) (<= main_a_x 1)), 381#(and (not (= main_x main_y)) (<= main_a_x 2)), 382#(and (not (= main_x main_y)) (<= main_a_x 3)), 383#(and (<= main_a_x 4) (not (= main_x main_y)))] [2018-07-23 13:51:56,371 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 13:51:56,371 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-23 13:51:56,371 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-23 13:51:56,372 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2018-07-23 13:51:56,372 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 11 states. [2018-07-23 13:51:56,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:56,396 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2018-07-23 13:51:56,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-07-23 13:51:56,396 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 11 [2018-07-23 13:51:56,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:56,397 INFO L225 Difference]: With dead ends: 15 [2018-07-23 13:51:56,397 INFO L226 Difference]: Without dead ends: 13 [2018-07-23 13:51:56,401 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2018-07-23 13:51:56,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2018-07-23 13:51:56,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-07-23 13:51:56,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-07-23 13:51:56,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2018-07-23 13:51:56,411 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2018-07-23 13:51:56,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:56,411 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2018-07-23 13:51:56,412 INFO L472 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-07-23 13:51:56,412 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2018-07-23 13:51:56,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-07-23 13:51:56,414 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:56,414 INFO L357 BasicCegarLoop]: trace histogram [9, 1, 1, 1] [2018-07-23 13:51:56,415 INFO L414 AbstractCegarLoop]: === Iteration 10 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:56,415 INFO L82 PathProgramCache]: Analyzing trace with hash 1015772775, now seen corresponding path program 9 times [2018-07-23 13:51:56,415 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:56,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:56,534 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 13:51:56,535 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:56,535 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-07-23 13:51:56,536 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:56,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:56,537 INFO L185 omatonBuilderFactory]: Interpolants [448#(and (not (= main_x main_y)) (<= main_a_x 2)), 449#(and (not (= main_x main_y)) (<= main_a_x 3)), 450#(and (<= main_a_x 4) (not (= main_x main_y))), 451#(and (<= main_a_x 5) (not (= main_x main_y))), 452#(and (not (= main_x main_y)) (<= main_a_x 6)), 453#(and (<= main_a_x 7) (not (= main_x main_y))), 454#(and (not (= main_x main_y)) (<= main_a_x 8)), 455#(<= main_a_x 9), 444#true, 445#false, 446#(and (not (= main_x main_y)) (<= main_a_x 0)), 447#(and (not (= main_x main_y)) (<= main_a_x 1))] [2018-07-23 13:51:56,538 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 13:51:56,538 INFO L450 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-07-23 13:51:56,538 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-07-23 13:51:56,539 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2018-07-23 13:51:56,539 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 12 states. [2018-07-23 13:51:56,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:56,564 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2018-07-23 13:51:56,564 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-07-23 13:51:56,564 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 12 [2018-07-23 13:51:56,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:56,565 INFO L225 Difference]: With dead ends: 16 [2018-07-23 13:51:56,566 INFO L226 Difference]: Without dead ends: 14 [2018-07-23 13:51:56,566 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2018-07-23 13:51:56,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-07-23 13:51:56,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-07-23 13:51:56,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-07-23 13:51:56,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-07-23 13:51:56,573 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2018-07-23 13:51:56,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:56,573 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2018-07-23 13:51:56,573 INFO L472 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-07-23 13:51:56,574 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-07-23 13:51:56,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-07-23 13:51:56,574 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:56,575 INFO L357 BasicCegarLoop]: trace histogram [10, 1, 1, 1] [2018-07-23 13:51:56,575 INFO L414 AbstractCegarLoop]: === Iteration 11 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:56,575 INFO L82 PathProgramCache]: Analyzing trace with hash 1424200332, now seen corresponding path program 10 times [2018-07-23 13:51:56,575 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:56,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:56,677 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 13:51:56,677 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:56,678 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2018-07-23 13:51:56,678 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:56,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:56,679 INFO L185 omatonBuilderFactory]: Interpolants [516#true, 517#false, 518#(and (not (= main_x main_y)) (<= main_a_x 0)), 519#(and (not (= main_x main_y)) (<= main_a_x 1)), 520#(and (not (= main_x main_y)) (<= main_a_x 2)), 521#(and (not (= main_x main_y)) (<= main_a_x 3)), 522#(and (<= main_a_x 4) (not (= main_x main_y))), 523#(and (<= main_a_x 5) (not (= main_x main_y))), 524#(and (not (= main_x main_y)) (<= main_a_x 6)), 525#(and (<= main_a_x 7) (not (= main_x main_y))), 526#(and (not (= main_x main_y)) (<= main_a_x 8)), 527#(and (not (= main_x main_y)) (<= main_a_x 9)), 528#(<= main_a_x 10)] [2018-07-23 13:51:56,679 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 13:51:56,679 INFO L450 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-07-23 13:51:56,680 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-07-23 13:51:56,680 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2018-07-23 13:51:56,681 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 13 states. [2018-07-23 13:51:56,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:56,692 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2018-07-23 13:51:56,692 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-23 13:51:56,693 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 13 [2018-07-23 13:51:56,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:56,693 INFO L225 Difference]: With dead ends: 17 [2018-07-23 13:51:56,693 INFO L226 Difference]: Without dead ends: 15 [2018-07-23 13:51:56,694 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2018-07-23 13:51:56,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-07-23 13:51:56,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-07-23 13:51:56,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-07-23 13:51:56,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2018-07-23 13:51:56,698 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 13 [2018-07-23 13:51:56,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:56,699 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2018-07-23 13:51:56,699 INFO L472 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-07-23 13:51:56,699 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2018-07-23 13:51:56,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-07-23 13:51:56,700 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:56,700 INFO L357 BasicCegarLoop]: trace histogram [11, 1, 1, 1] [2018-07-23 13:51:56,700 INFO L414 AbstractCegarLoop]: === Iteration 12 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:56,700 INFO L82 PathProgramCache]: Analyzing trace with hash 1200552711, now seen corresponding path program 11 times [2018-07-23 13:51:56,701 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:56,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:56,828 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 13:51:56,829 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:56,829 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2018-07-23 13:51:56,829 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:56,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:56,830 INFO L185 omatonBuilderFactory]: Interpolants [593#true, 594#false, 595#(and (not (= main_x main_y)) (<= main_a_x 0)), 596#(and (not (= main_x main_y)) (<= main_a_x 1)), 597#(and (not (= main_x main_y)) (<= main_a_x 2)), 598#(and (not (= main_x main_y)) (<= main_a_x 3)), 599#(and (<= main_a_x 4) (not (= main_x main_y))), 600#(and (<= main_a_x 5) (not (= main_x main_y))), 601#(and (not (= main_x main_y)) (<= main_a_x 6)), 602#(and (<= main_a_x 7) (not (= main_x main_y))), 603#(and (not (= main_x main_y)) (<= main_a_x 8)), 604#(and (not (= main_x main_y)) (<= main_a_x 9)), 605#(and (<= main_a_x 10) (not (= main_x main_y))), 606#(<= main_a_x 11)] [2018-07-23 13:51:56,831 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 13:51:56,831 INFO L450 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-07-23 13:51:56,831 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-07-23 13:51:56,832 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2018-07-23 13:51:56,832 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 14 states. [2018-07-23 13:51:56,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:56,847 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2018-07-23 13:51:56,847 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-07-23 13:51:56,847 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 14 [2018-07-23 13:51:56,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:56,848 INFO L225 Difference]: With dead ends: 18 [2018-07-23 13:51:56,848 INFO L226 Difference]: Without dead ends: 16 [2018-07-23 13:51:56,849 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2018-07-23 13:51:56,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-07-23 13:51:56,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-07-23 13:51:56,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-07-23 13:51:56,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2018-07-23 13:51:56,853 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 14 [2018-07-23 13:51:56,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:56,854 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2018-07-23 13:51:56,854 INFO L472 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-07-23 13:51:56,854 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2018-07-23 13:51:56,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-07-23 13:51:56,855 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:56,855 INFO L357 BasicCegarLoop]: trace histogram [12, 1, 1, 1] [2018-07-23 13:51:56,855 INFO L414 AbstractCegarLoop]: === Iteration 13 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:56,855 INFO L82 PathProgramCache]: Analyzing trace with hash -1437556244, now seen corresponding path program 12 times [2018-07-23 13:51:56,856 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:56,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:56,999 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 13:51:56,999 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:57,002 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-07-23 13:51:57,003 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:57,003 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 13:51:57,004 INFO L185 omatonBuilderFactory]: Interpolants [675#true, 676#false, 677#(and (not (= main_x main_y)) (<= main_a_x 0)), 678#(and (not (= main_x main_y)) (<= main_a_x 1)), 679#(and (not (= main_x main_y)) (<= main_a_x 2)), 680#(and (not (= main_x main_y)) (<= main_a_x 3)), 681#(and (<= main_a_x 4) (not (= main_x main_y))), 682#(and (<= main_a_x 5) (not (= main_x main_y))), 683#(and (not (= main_x main_y)) (<= main_a_x 6)), 684#(and (<= main_a_x 7) (not (= main_x main_y))), 685#(and (not (= main_x main_y)) (<= main_a_x 8)), 686#(and (not (= main_x main_y)) (<= main_a_x 9)), 687#(and (<= main_a_x 10) (not (= main_x main_y))), 688#(and (not (= main_x main_y)) (<= main_a_x 11)), 689#(<= main_a_x 12)] [2018-07-23 13:51:57,004 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 13:51:57,005 INFO L450 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-07-23 13:51:57,005 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-07-23 13:51:57,005 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2018-07-23 13:51:57,006 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 15 states. [2018-07-23 13:51:57,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:57,035 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2018-07-23 13:51:57,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-07-23 13:51:57,035 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 15 [2018-07-23 13:51:57,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:57,036 INFO L225 Difference]: With dead ends: 19 [2018-07-23 13:51:57,036 INFO L226 Difference]: Without dead ends: 17 [2018-07-23 13:51:57,041 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 13:51:57,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-07-23 13:51:57,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-07-23 13:51:57,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-07-23 13:51:57,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2018-07-23 13:51:57,047 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 15 [2018-07-23 13:51:57,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:57,047 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2018-07-23 13:51:57,048 INFO L472 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-07-23 13:51:57,048 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2018-07-23 13:51:57,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-07-23 13:51:57,049 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:57,049 INFO L357 BasicCegarLoop]: trace histogram [13, 1, 1, 1] [2018-07-23 13:51:57,049 INFO L414 AbstractCegarLoop]: === Iteration 14 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:57,049 INFO L82 PathProgramCache]: Analyzing trace with hash -1614555225, now seen corresponding path program 13 times [2018-07-23 13:51:57,049 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:57,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:57,198 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 13:51:57,199 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:57,199 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2018-07-23 13:51:57,199 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:57,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:57,200 INFO L185 omatonBuilderFactory]: Interpolants [768#(and (<= main_a_x 4) (not (= main_x main_y))), 769#(and (<= main_a_x 5) (not (= main_x main_y))), 770#(and (not (= main_x main_y)) (<= main_a_x 6)), 771#(and (<= main_a_x 7) (not (= main_x main_y))), 772#(and (not (= main_x main_y)) (<= main_a_x 8)), 773#(and (not (= main_x main_y)) (<= main_a_x 9)), 774#(and (<= main_a_x 10) (not (= main_x main_y))), 775#(and (not (= main_x main_y)) (<= main_a_x 11)), 776#(and (not (= main_x main_y)) (<= main_a_x 12)), 777#(<= main_a_x 13), 762#true, 763#false, 764#(and (not (= main_x main_y)) (<= main_a_x 0)), 765#(and (not (= main_x main_y)) (<= main_a_x 1)), 766#(and (not (= main_x main_y)) (<= main_a_x 2)), 767#(and (not (= main_x main_y)) (<= main_a_x 3))] [2018-07-23 13:51:57,201 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 13:51:57,201 INFO L450 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-07-23 13:51:57,201 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-07-23 13:51:57,202 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2018-07-23 13:51:57,202 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 16 states. [2018-07-23 13:51:57,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:57,218 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2018-07-23 13:51:57,218 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-07-23 13:51:57,218 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 16 [2018-07-23 13:51:57,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:57,219 INFO L225 Difference]: With dead ends: 20 [2018-07-23 13:51:57,219 INFO L226 Difference]: Without dead ends: 18 [2018-07-23 13:51:57,220 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 13:51:57,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-07-23 13:51:57,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-07-23 13:51:57,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-07-23 13:51:57,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2018-07-23 13:51:57,224 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 16 [2018-07-23 13:51:57,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:57,225 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2018-07-23 13:51:57,225 INFO L472 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-07-23 13:51:57,225 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2018-07-23 13:51:57,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-07-23 13:51:57,226 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:57,226 INFO L357 BasicCegarLoop]: trace histogram [14, 1, 1, 1] [2018-07-23 13:51:57,226 INFO L414 AbstractCegarLoop]: === Iteration 15 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:57,227 INFO L82 PathProgramCache]: Analyzing trace with hash 1488410956, now seen corresponding path program 14 times [2018-07-23 13:51:57,227 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:57,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:57,384 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 13:51:57,385 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:57,385 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2018-07-23 13:51:57,385 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:57,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:57,386 INFO L185 omatonBuilderFactory]: Interpolants [864#(and (not (= main_x main_y)) (<= main_a_x 8)), 865#(and (not (= main_x main_y)) (<= main_a_x 9)), 866#(and (<= main_a_x 10) (not (= main_x main_y))), 867#(and (not (= main_x main_y)) (<= main_a_x 11)), 868#(and (not (= main_x main_y)) (<= main_a_x 12)), 869#(and (<= main_a_x 13) (not (= main_x main_y))), 870#(<= main_a_x 14), 854#true, 855#false, 856#(and (not (= main_x main_y)) (<= main_a_x 0)), 857#(and (not (= main_x main_y)) (<= main_a_x 1)), 858#(and (not (= main_x main_y)) (<= main_a_x 2)), 859#(and (not (= main_x main_y)) (<= main_a_x 3)), 860#(and (<= main_a_x 4) (not (= main_x main_y))), 861#(and (<= main_a_x 5) (not (= main_x main_y))), 862#(and (not (= main_x main_y)) (<= main_a_x 6)), 863#(and (<= main_a_x 7) (not (= main_x main_y)))] [2018-07-23 13:51:57,387 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 13:51:57,387 INFO L450 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-07-23 13:51:57,388 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-07-23 13:51:57,388 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2018-07-23 13:51:57,388 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 17 states. [2018-07-23 13:51:57,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:57,402 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2018-07-23 13:51:57,402 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-07-23 13:51:57,402 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 17 [2018-07-23 13:51:57,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:57,403 INFO L225 Difference]: With dead ends: 21 [2018-07-23 13:51:57,403 INFO L226 Difference]: Without dead ends: 19 [2018-07-23 13:51:57,404 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 13:51:57,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-07-23 13:51:57,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-07-23 13:51:57,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-07-23 13:51:57,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2018-07-23 13:51:57,408 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 17 [2018-07-23 13:51:57,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:57,409 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2018-07-23 13:51:57,409 INFO L472 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-07-23 13:51:57,409 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2018-07-23 13:51:57,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-07-23 13:51:57,410 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:57,410 INFO L357 BasicCegarLoop]: trace histogram [15, 1, 1, 1] [2018-07-23 13:51:57,410 INFO L414 AbstractCegarLoop]: === Iteration 16 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:57,410 INFO L82 PathProgramCache]: Analyzing trace with hash -1103885241, now seen corresponding path program 15 times [2018-07-23 13:51:57,410 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:57,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:57,586 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 13:51:57,587 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:57,587 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2018-07-23 13:51:57,587 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:57,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:57,588 INFO L185 omatonBuilderFactory]: Interpolants [960#(and (<= main_a_x 7) (not (= main_x main_y))), 961#(and (not (= main_x main_y)) (<= main_a_x 8)), 962#(and (not (= main_x main_y)) (<= main_a_x 9)), 963#(and (<= main_a_x 10) (not (= main_x main_y))), 964#(and (not (= main_x main_y)) (<= main_a_x 11)), 965#(and (not (= main_x main_y)) (<= main_a_x 12)), 966#(and (<= main_a_x 13) (not (= main_x main_y))), 967#(and (not (= main_x main_y)) (<= main_a_x 14)), 968#(<= main_a_x 15), 951#true, 952#false, 953#(and (not (= main_x main_y)) (<= main_a_x 0)), 954#(and (not (= main_x main_y)) (<= main_a_x 1)), 955#(and (not (= main_x main_y)) (<= main_a_x 2)), 956#(and (not (= main_x main_y)) (<= main_a_x 3)), 957#(and (<= main_a_x 4) (not (= main_x main_y))), 958#(and (<= main_a_x 5) (not (= main_x main_y))), 959#(and (not (= main_x main_y)) (<= main_a_x 6))] [2018-07-23 13:51:57,589 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 13:51:57,589 INFO L450 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-07-23 13:51:57,589 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-07-23 13:51:57,590 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2018-07-23 13:51:57,590 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 18 states. [2018-07-23 13:51:57,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:57,609 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2018-07-23 13:51:57,609 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-07-23 13:51:57,609 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 18 [2018-07-23 13:51:57,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:57,617 INFO L225 Difference]: With dead ends: 22 [2018-07-23 13:51:57,617 INFO L226 Difference]: Without dead ends: 20 [2018-07-23 13:51:57,618 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 13:51:57,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-07-23 13:51:57,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-07-23 13:51:57,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-07-23 13:51:57,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2018-07-23 13:51:57,626 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 18 [2018-07-23 13:51:57,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:57,627 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2018-07-23 13:51:57,627 INFO L472 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-07-23 13:51:57,627 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2018-07-23 13:51:57,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-07-23 13:51:57,629 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:57,630 INFO L357 BasicCegarLoop]: trace histogram [16, 1, 1, 1] [2018-07-23 13:51:57,630 INFO L414 AbstractCegarLoop]: === Iteration 17 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:57,630 INFO L82 PathProgramCache]: Analyzing trace with hash 139311276, now seen corresponding path program 16 times [2018-07-23 13:51:57,631 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:57,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:57,845 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 13:51:57,845 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:57,846 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2018-07-23 13:51:57,846 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:57,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:57,848 INFO L185 omatonBuilderFactory]: Interpolants [1056#(and (not (= main_x main_y)) (<= main_a_x 1)), 1057#(and (not (= main_x main_y)) (<= main_a_x 2)), 1058#(and (not (= main_x main_y)) (<= main_a_x 3)), 1059#(and (<= main_a_x 4) (not (= main_x main_y))), 1060#(and (<= main_a_x 5) (not (= main_x main_y))), 1061#(and (not (= main_x main_y)) (<= main_a_x 6)), 1062#(and (<= main_a_x 7) (not (= main_x main_y))), 1063#(and (not (= main_x main_y)) (<= main_a_x 8)), 1064#(and (not (= main_x main_y)) (<= main_a_x 9)), 1065#(and (<= main_a_x 10) (not (= main_x main_y))), 1066#(and (not (= main_x main_y)) (<= main_a_x 11)), 1067#(and (not (= main_x main_y)) (<= main_a_x 12)), 1068#(and (<= main_a_x 13) (not (= main_x main_y))), 1069#(and (not (= main_x main_y)) (<= main_a_x 14)), 1070#(and (<= main_a_x 15) (not (= main_x main_y))), 1071#(<= main_a_x 16), 1053#true, 1054#false, 1055#(and (not (= main_x main_y)) (<= main_a_x 0))] [2018-07-23 13:51:57,849 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 13:51:57,850 INFO L450 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-07-23 13:51:57,851 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-07-23 13:51:57,851 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2018-07-23 13:51:57,852 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 19 states. [2018-07-23 13:51:57,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:57,880 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2018-07-23 13:51:57,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-07-23 13:51:57,881 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 19 [2018-07-23 13:51:57,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:57,882 INFO L225 Difference]: With dead ends: 23 [2018-07-23 13:51:57,882 INFO L226 Difference]: Without dead ends: 21 [2018-07-23 13:51:57,883 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 13:51:57,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-07-23 13:51:57,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-07-23 13:51:57,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-07-23 13:51:57,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2018-07-23 13:51:57,888 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 19 [2018-07-23 13:51:57,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:57,889 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2018-07-23 13:51:57,889 INFO L472 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-07-23 13:51:57,889 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2018-07-23 13:51:57,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-07-23 13:51:57,890 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:57,890 INFO L357 BasicCegarLoop]: trace histogram [17, 1, 1, 1] [2018-07-23 13:51:57,892 INFO L414 AbstractCegarLoop]: === Iteration 18 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:57,892 INFO L82 PathProgramCache]: Analyzing trace with hash 23697639, now seen corresponding path program 17 times [2018-07-23 13:51:57,892 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:57,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:58,107 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 13:51:58,108 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:58,108 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2018-07-23 13:51:58,109 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:58,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:58,110 INFO L185 omatonBuilderFactory]: Interpolants [1160#true, 1161#false, 1162#(and (not (= main_x main_y)) (<= main_a_x 0)), 1163#(and (not (= main_x main_y)) (<= main_a_x 1)), 1164#(and (not (= main_x main_y)) (<= main_a_x 2)), 1165#(and (not (= main_x main_y)) (<= main_a_x 3)), 1166#(and (<= main_a_x 4) (not (= main_x main_y))), 1167#(and (<= main_a_x 5) (not (= main_x main_y))), 1168#(and (not (= main_x main_y)) (<= main_a_x 6)), 1169#(and (<= main_a_x 7) (not (= main_x main_y))), 1170#(and (not (= main_x main_y)) (<= main_a_x 8)), 1171#(and (not (= main_x main_y)) (<= main_a_x 9)), 1172#(and (<= main_a_x 10) (not (= main_x main_y))), 1173#(and (not (= main_x main_y)) (<= main_a_x 11)), 1174#(and (not (= main_x main_y)) (<= main_a_x 12)), 1175#(and (<= main_a_x 13) (not (= main_x main_y))), 1176#(and (not (= main_x main_y)) (<= main_a_x 14)), 1177#(and (<= main_a_x 15) (not (= main_x main_y))), 1178#(and (not (= main_x main_y)) (<= main_a_x 16)), 1179#(<= main_a_x 17)] [2018-07-23 13:51:58,110 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 13:51:58,110 INFO L450 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-07-23 13:51:58,111 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-07-23 13:51:58,111 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2018-07-23 13:51:58,112 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 20 states. [2018-07-23 13:51:58,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:58,130 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2018-07-23 13:51:58,130 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-07-23 13:51:58,130 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 20 [2018-07-23 13:51:58,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:58,131 INFO L225 Difference]: With dead ends: 24 [2018-07-23 13:51:58,131 INFO L226 Difference]: Without dead ends: 22 [2018-07-23 13:51:58,132 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 13:51:58,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-07-23 13:51:58,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-07-23 13:51:58,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-07-23 13:51:58,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2018-07-23 13:51:58,136 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 20 [2018-07-23 13:51:58,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:58,137 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2018-07-23 13:51:58,137 INFO L472 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-07-23 13:51:58,137 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2018-07-23 13:51:58,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-07-23 13:51:58,138 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:58,138 INFO L357 BasicCegarLoop]: trace histogram [18, 1, 1, 1] [2018-07-23 13:51:58,138 INFO L414 AbstractCegarLoop]: === Iteration 19 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:58,139 INFO L82 PathProgramCache]: Analyzing trace with hash 734642188, now seen corresponding path program 18 times [2018-07-23 13:51:58,139 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:58,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:58,357 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 13:51:58,357 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:58,357 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-07-23 13:51:58,357 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:58,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:58,358 INFO L185 omatonBuilderFactory]: Interpolants [1280#(and (not (= main_x main_y)) (<= main_a_x 6)), 1281#(and (<= main_a_x 7) (not (= main_x main_y))), 1282#(and (not (= main_x main_y)) (<= main_a_x 8)), 1283#(and (not (= main_x main_y)) (<= main_a_x 9)), 1284#(and (<= main_a_x 10) (not (= main_x main_y))), 1285#(and (not (= main_x main_y)) (<= main_a_x 11)), 1286#(and (not (= main_x main_y)) (<= main_a_x 12)), 1287#(and (<= main_a_x 13) (not (= main_x main_y))), 1288#(and (not (= main_x main_y)) (<= main_a_x 14)), 1289#(and (<= main_a_x 15) (not (= main_x main_y))), 1290#(and (not (= main_x main_y)) (<= main_a_x 16)), 1291#(and (not (= main_x main_y)) (<= main_a_x 17)), 1292#(<= main_a_x 18), 1272#true, 1273#false, 1274#(and (not (= main_x main_y)) (<= main_a_x 0)), 1275#(and (not (= main_x main_y)) (<= main_a_x 1)), 1276#(and (not (= main_x main_y)) (<= main_a_x 2)), 1277#(and (not (= main_x main_y)) (<= main_a_x 3)), 1278#(and (<= main_a_x 4) (not (= main_x main_y))), 1279#(and (<= main_a_x 5) (not (= main_x main_y)))] [2018-07-23 13:51:58,359 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 13:51:58,359 INFO L450 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-07-23 13:51:58,359 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-07-23 13:51:58,360 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2018-07-23 13:51:58,360 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 21 states. [2018-07-23 13:51:58,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:58,379 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2018-07-23 13:51:58,379 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-07-23 13:51:58,379 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 21 [2018-07-23 13:51:58,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:58,380 INFO L225 Difference]: With dead ends: 25 [2018-07-23 13:51:58,380 INFO L226 Difference]: Without dead ends: 23 [2018-07-23 13:51:58,382 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2018-07-23 13:51:58,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-07-23 13:51:58,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-07-23 13:51:58,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-07-23 13:51:58,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2018-07-23 13:51:58,390 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 21 [2018-07-23 13:51:58,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:58,390 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2018-07-23 13:51:58,391 INFO L472 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-07-23 13:51:58,392 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2018-07-23 13:51:58,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-07-23 13:51:58,392 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:58,393 INFO L357 BasicCegarLoop]: trace histogram [19, 1, 1, 1] [2018-07-23 13:51:58,393 INFO L414 AbstractCegarLoop]: === Iteration 20 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:58,393 INFO L82 PathProgramCache]: Analyzing trace with hash 1299086727, now seen corresponding path program 19 times [2018-07-23 13:51:58,394 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:58,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:58,627 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 13:51:58,627 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:58,627 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-07-23 13:51:58,628 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:58,628 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 13:51:58,630 INFO L185 omatonBuilderFactory]: Interpolants [1408#(and (not (= main_x main_y)) (<= main_a_x 17)), 1409#(and (<= main_a_x 18) (not (= main_x main_y))), 1410#(<= main_a_x 19), 1389#true, 1390#false, 1391#(and (not (= main_x main_y)) (<= main_a_x 0)), 1392#(and (not (= main_x main_y)) (<= main_a_x 1)), 1393#(and (not (= main_x main_y)) (<= main_a_x 2)), 1394#(and (not (= main_x main_y)) (<= main_a_x 3)), 1395#(and (<= main_a_x 4) (not (= main_x main_y))), 1396#(and (<= main_a_x 5) (not (= main_x main_y))), 1397#(and (not (= main_x main_y)) (<= main_a_x 6)), 1398#(and (<= main_a_x 7) (not (= main_x main_y))), 1399#(and (not (= main_x main_y)) (<= main_a_x 8)), 1400#(and (not (= main_x main_y)) (<= main_a_x 9)), 1401#(and (<= main_a_x 10) (not (= main_x main_y))), 1402#(and (not (= main_x main_y)) (<= main_a_x 11)), 1403#(and (not (= main_x main_y)) (<= main_a_x 12)), 1404#(and (<= main_a_x 13) (not (= main_x main_y))), 1405#(and (not (= main_x main_y)) (<= main_a_x 14)), 1406#(and (<= main_a_x 15) (not (= main_x main_y))), 1407#(and (not (= main_x main_y)) (<= main_a_x 16))] [2018-07-23 13:51:58,630 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 13:51:58,631 INFO L450 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-07-23 13:51:58,631 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-07-23 13:51:58,631 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2018-07-23 13:51:58,632 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand 22 states. [2018-07-23 13:51:58,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:58,652 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2018-07-23 13:51:58,652 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-07-23 13:51:58,652 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 22 [2018-07-23 13:51:58,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:58,653 INFO L225 Difference]: With dead ends: 26 [2018-07-23 13:51:58,653 INFO L226 Difference]: Without dead ends: 24 [2018-07-23 13:51:58,654 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2018-07-23 13:51:58,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-07-23 13:51:58,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-07-23 13:51:58,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-07-23 13:51:58,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2018-07-23 13:51:58,659 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 22 [2018-07-23 13:51:58,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:58,659 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2018-07-23 13:51:58,659 INFO L472 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-07-23 13:51:58,659 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2018-07-23 13:51:58,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-07-23 13:51:58,660 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:58,660 INFO L357 BasicCegarLoop]: trace histogram [20, 1, 1, 1] [2018-07-23 13:51:58,661 INFO L414 AbstractCegarLoop]: === Iteration 21 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:58,661 INFO L82 PathProgramCache]: Analyzing trace with hash 1616998252, now seen corresponding path program 20 times [2018-07-23 13:51:58,661 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:58,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:58,906 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 13:51:58,907 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:58,907 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2018-07-23 13:51:58,907 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:58,908 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 13:51:58,908 INFO L185 omatonBuilderFactory]: Interpolants [1511#true, 1512#false, 1513#(and (not (= main_x main_y)) (<= main_a_x 0)), 1514#(and (not (= main_x main_y)) (<= main_a_x 1)), 1515#(and (not (= main_x main_y)) (<= main_a_x 2)), 1516#(and (not (= main_x main_y)) (<= main_a_x 3)), 1517#(and (<= main_a_x 4) (not (= main_x main_y))), 1518#(and (<= main_a_x 5) (not (= main_x main_y))), 1519#(and (not (= main_x main_y)) (<= main_a_x 6)), 1520#(and (<= main_a_x 7) (not (= main_x main_y))), 1521#(and (not (= main_x main_y)) (<= main_a_x 8)), 1522#(and (not (= main_x main_y)) (<= main_a_x 9)), 1523#(and (<= main_a_x 10) (not (= main_x main_y))), 1524#(and (not (= main_x main_y)) (<= main_a_x 11)), 1525#(and (not (= main_x main_y)) (<= main_a_x 12)), 1526#(and (<= main_a_x 13) (not (= main_x main_y))), 1527#(and (not (= main_x main_y)) (<= main_a_x 14)), 1528#(and (<= main_a_x 15) (not (= main_x main_y))), 1529#(and (not (= main_x main_y)) (<= main_a_x 16)), 1530#(and (not (= main_x main_y)) (<= main_a_x 17)), 1531#(and (<= main_a_x 18) (not (= main_x main_y))), 1532#(and (<= main_a_x 19) (not (= main_x main_y))), 1533#(<= main_a_x 20)] [2018-07-23 13:51:58,908 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 13:51:58,909 INFO L450 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-07-23 13:51:58,909 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-07-23 13:51:58,912 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2018-07-23 13:51:58,912 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 23 states. [2018-07-23 13:51:58,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:58,935 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2018-07-23 13:51:58,935 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-07-23 13:51:58,935 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 23 [2018-07-23 13:51:58,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:58,936 INFO L225 Difference]: With dead ends: 27 [2018-07-23 13:51:58,938 INFO L226 Difference]: Without dead ends: 25 [2018-07-23 13:51:58,939 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2018-07-23 13:51:58,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-07-23 13:51:58,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-07-23 13:51:58,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-07-23 13:51:58,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2018-07-23 13:51:58,947 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 23 [2018-07-23 13:51:58,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:58,947 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2018-07-23 13:51:58,947 INFO L472 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-07-23 13:51:58,947 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2018-07-23 13:51:58,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-07-23 13:51:58,948 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:58,948 INFO L357 BasicCegarLoop]: trace histogram [21, 1, 1, 1] [2018-07-23 13:51:58,948 INFO L414 AbstractCegarLoop]: === Iteration 22 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:58,949 INFO L82 PathProgramCache]: Analyzing trace with hash -1412646361, now seen corresponding path program 21 times [2018-07-23 13:51:58,949 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:58,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:59,302 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 13:51:59,303 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:59,303 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-07-23 13:51:59,303 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:59,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:59,304 INFO L185 omatonBuilderFactory]: Interpolants [1638#true, 1639#false, 1640#(and (not (= main_x main_y)) (<= main_a_x 0)), 1641#(and (not (= main_x main_y)) (<= main_a_x 1)), 1642#(and (not (= main_x main_y)) (<= main_a_x 2)), 1643#(and (not (= main_x main_y)) (<= main_a_x 3)), 1644#(and (<= main_a_x 4) (not (= main_x main_y))), 1645#(and (<= main_a_x 5) (not (= main_x main_y))), 1646#(and (not (= main_x main_y)) (<= main_a_x 6)), 1647#(and (<= main_a_x 7) (not (= main_x main_y))), 1648#(and (not (= main_x main_y)) (<= main_a_x 8)), 1649#(and (not (= main_x main_y)) (<= main_a_x 9)), 1650#(and (<= main_a_x 10) (not (= main_x main_y))), 1651#(and (not (= main_x main_y)) (<= main_a_x 11)), 1652#(and (not (= main_x main_y)) (<= main_a_x 12)), 1653#(and (<= main_a_x 13) (not (= main_x main_y))), 1654#(and (not (= main_x main_y)) (<= main_a_x 14)), 1655#(and (<= main_a_x 15) (not (= main_x main_y))), 1656#(and (not (= main_x main_y)) (<= main_a_x 16)), 1657#(and (not (= main_x main_y)) (<= main_a_x 17)), 1658#(and (<= main_a_x 18) (not (= main_x main_y))), 1659#(and (<= main_a_x 19) (not (= main_x main_y))), 1660#(and (not (= main_x main_y)) (<= main_a_x 20)), 1661#(<= main_a_x 21)] [2018-07-23 13:51:59,305 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 13:51:59,305 INFO L450 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-07-23 13:51:59,305 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-07-23 13:51:59,306 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2018-07-23 13:51:59,306 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand 24 states. [2018-07-23 13:51:59,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:59,339 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2018-07-23 13:51:59,340 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-07-23 13:51:59,340 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 24 [2018-07-23 13:51:59,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:59,340 INFO L225 Difference]: With dead ends: 28 [2018-07-23 13:51:59,341 INFO L226 Difference]: Without dead ends: 26 [2018-07-23 13:51:59,341 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 13:51:59,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-07-23 13:51:59,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2018-07-23 13:51:59,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-07-23 13:51:59,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2018-07-23 13:51:59,352 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 24 [2018-07-23 13:51:59,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:59,353 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2018-07-23 13:51:59,353 INFO L472 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-07-23 13:51:59,353 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2018-07-23 13:51:59,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-07-23 13:51:59,354 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:59,354 INFO L357 BasicCegarLoop]: trace histogram [22, 1, 1, 1] [2018-07-23 13:51:59,354 INFO L414 AbstractCegarLoop]: === Iteration 23 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:59,354 INFO L82 PathProgramCache]: Analyzing trace with hash -842348852, now seen corresponding path program 22 times [2018-07-23 13:51:59,355 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:59,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:59,650 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 13:51:59,651 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:59,651 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2018-07-23 13:51:59,651 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:59,652 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 13:51:59,652 INFO L185 omatonBuilderFactory]: Interpolants [1792#(and (not (= main_x main_y)) (<= main_a_x 20)), 1793#(and (not (= main_x main_y)) (<= main_a_x 21)), 1794#(<= main_a_x 22), 1770#true, 1771#false, 1772#(and (not (= main_x main_y)) (<= main_a_x 0)), 1773#(and (not (= main_x main_y)) (<= main_a_x 1)), 1774#(and (not (= main_x main_y)) (<= main_a_x 2)), 1775#(and (not (= main_x main_y)) (<= main_a_x 3)), 1776#(and (<= main_a_x 4) (not (= main_x main_y))), 1777#(and (<= main_a_x 5) (not (= main_x main_y))), 1778#(and (not (= main_x main_y)) (<= main_a_x 6)), 1779#(and (<= main_a_x 7) (not (= main_x main_y))), 1780#(and (not (= main_x main_y)) (<= main_a_x 8)), 1781#(and (not (= main_x main_y)) (<= main_a_x 9)), 1782#(and (<= main_a_x 10) (not (= main_x main_y))), 1783#(and (not (= main_x main_y)) (<= main_a_x 11)), 1784#(and (not (= main_x main_y)) (<= main_a_x 12)), 1785#(and (<= main_a_x 13) (not (= main_x main_y))), 1786#(and (not (= main_x main_y)) (<= main_a_x 14)), 1787#(and (<= main_a_x 15) (not (= main_x main_y))), 1788#(and (not (= main_x main_y)) (<= main_a_x 16)), 1789#(and (not (= main_x main_y)) (<= main_a_x 17)), 1790#(and (<= main_a_x 18) (not (= main_x main_y))), 1791#(and (<= main_a_x 19) (not (= main_x main_y)))] [2018-07-23 13:51:59,652 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 13:51:59,653 INFO L450 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-07-23 13:51:59,653 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-07-23 13:51:59,653 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2018-07-23 13:51:59,654 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand 25 states. [2018-07-23 13:51:59,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:59,683 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2018-07-23 13:51:59,683 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-07-23 13:51:59,683 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 25 [2018-07-23 13:51:59,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:59,684 INFO L225 Difference]: With dead ends: 29 [2018-07-23 13:51:59,684 INFO L226 Difference]: Without dead ends: 27 [2018-07-23 13:51:59,685 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 13:51:59,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-07-23 13:51:59,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-07-23 13:51:59,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-07-23 13:51:59,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2018-07-23 13:51:59,692 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 25 [2018-07-23 13:51:59,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:59,692 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2018-07-23 13:51:59,692 INFO L472 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-07-23 13:51:59,692 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2018-07-23 13:51:59,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-07-23 13:51:59,694 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:59,694 INFO L357 BasicCegarLoop]: trace histogram [23, 1, 1, 1] [2018-07-23 13:51:59,694 INFO L414 AbstractCegarLoop]: === Iteration 24 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:59,695 INFO L82 PathProgramCache]: Analyzing trace with hash -342995257, now seen corresponding path program 23 times [2018-07-23 13:51:59,695 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:59,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:59,966 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 13:51:59,966 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:59,966 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2018-07-23 13:51:59,967 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:59,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:59,967 INFO L185 omatonBuilderFactory]: Interpolants [1920#(and (not (= main_x main_y)) (<= main_a_x 11)), 1921#(and (not (= main_x main_y)) (<= main_a_x 12)), 1922#(and (<= main_a_x 13) (not (= main_x main_y))), 1923#(and (not (= main_x main_y)) (<= main_a_x 14)), 1924#(and (<= main_a_x 15) (not (= main_x main_y))), 1925#(and (not (= main_x main_y)) (<= main_a_x 16)), 1926#(and (not (= main_x main_y)) (<= main_a_x 17)), 1927#(and (<= main_a_x 18) (not (= main_x main_y))), 1928#(and (<= main_a_x 19) (not (= main_x main_y))), 1929#(and (not (= main_x main_y)) (<= main_a_x 20)), 1930#(and (not (= main_x main_y)) (<= main_a_x 21)), 1931#(and (not (= main_x main_y)) (<= main_a_x 22)), 1932#(<= main_a_x 23), 1907#true, 1908#false, 1909#(and (not (= main_x main_y)) (<= main_a_x 0)), 1910#(and (not (= main_x main_y)) (<= main_a_x 1)), 1911#(and (not (= main_x main_y)) (<= main_a_x 2)), 1912#(and (not (= main_x main_y)) (<= main_a_x 3)), 1913#(and (<= main_a_x 4) (not (= main_x main_y))), 1914#(and (<= main_a_x 5) (not (= main_x main_y))), 1915#(and (not (= main_x main_y)) (<= main_a_x 6)), 1916#(and (<= main_a_x 7) (not (= main_x main_y))), 1917#(and (not (= main_x main_y)) (<= main_a_x 8)), 1918#(and (not (= main_x main_y)) (<= main_a_x 9)), 1919#(and (<= main_a_x 10) (not (= main_x main_y)))] [2018-07-23 13:51:59,968 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 13:51:59,968 INFO L450 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-07-23 13:51:59,972 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-07-23 13:51:59,972 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2018-07-23 13:51:59,972 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand 26 states. [2018-07-23 13:51:59,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:59,993 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2018-07-23 13:51:59,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-07-23 13:51:59,994 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 26 [2018-07-23 13:51:59,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:59,994 INFO L225 Difference]: With dead ends: 30 [2018-07-23 13:51:59,994 INFO L226 Difference]: Without dead ends: 28 [2018-07-23 13:51:59,995 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 13:51:59,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-07-23 13:52:00,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-07-23 13:52:00,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-07-23 13:52:00,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2018-07-23 13:52:00,001 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 26 [2018-07-23 13:52:00,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:00,002 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2018-07-23 13:52:00,002 INFO L472 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-07-23 13:52:00,002 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2018-07-23 13:52:00,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-07-23 13:52:00,002 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:00,003 INFO L357 BasicCegarLoop]: trace histogram [24, 1, 1, 1] [2018-07-23 13:52:00,003 INFO L414 AbstractCegarLoop]: === Iteration 25 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:00,003 INFO L82 PathProgramCache]: Analyzing trace with hash -2042902996, now seen corresponding path program 24 times [2018-07-23 13:52:00,003 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:00,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:00,296 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 13:52:00,296 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:00,297 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-07-23 13:52:00,297 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:00,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:00,298 INFO L185 omatonBuilderFactory]: Interpolants [2049#true, 2050#false, 2051#(and (not (= main_x main_y)) (<= main_a_x 0)), 2052#(and (not (= main_x main_y)) (<= main_a_x 1)), 2053#(and (not (= main_x main_y)) (<= main_a_x 2)), 2054#(and (not (= main_x main_y)) (<= main_a_x 3)), 2055#(and (<= main_a_x 4) (not (= main_x main_y))), 2056#(and (<= main_a_x 5) (not (= main_x main_y))), 2057#(and (not (= main_x main_y)) (<= main_a_x 6)), 2058#(and (<= main_a_x 7) (not (= main_x main_y))), 2059#(and (not (= main_x main_y)) (<= main_a_x 8)), 2060#(and (not (= main_x main_y)) (<= main_a_x 9)), 2061#(and (<= main_a_x 10) (not (= main_x main_y))), 2062#(and (not (= main_x main_y)) (<= main_a_x 11)), 2063#(and (not (= main_x main_y)) (<= main_a_x 12)), 2064#(and (<= main_a_x 13) (not (= main_x main_y))), 2065#(and (not (= main_x main_y)) (<= main_a_x 14)), 2066#(and (<= main_a_x 15) (not (= main_x main_y))), 2067#(and (not (= main_x main_y)) (<= main_a_x 16)), 2068#(and (not (= main_x main_y)) (<= main_a_x 17)), 2069#(and (<= main_a_x 18) (not (= main_x main_y))), 2070#(and (<= main_a_x 19) (not (= main_x main_y))), 2071#(and (not (= main_x main_y)) (<= main_a_x 20)), 2072#(and (not (= main_x main_y)) (<= main_a_x 21)), 2073#(and (not (= main_x main_y)) (<= main_a_x 22)), 2074#(and (<= main_a_x 23) (not (= main_x main_y))), 2075#(<= main_a_x 24)] [2018-07-23 13:52:00,298 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 13:52:00,298 INFO L450 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-07-23 13:52:00,299 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-07-23 13:52:00,299 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2018-07-23 13:52:00,299 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand 27 states. [2018-07-23 13:52:00,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:00,322 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2018-07-23 13:52:00,322 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-07-23 13:52:00,322 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 27 [2018-07-23 13:52:00,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:00,323 INFO L225 Difference]: With dead ends: 31 [2018-07-23 13:52:00,323 INFO L226 Difference]: Without dead ends: 29 [2018-07-23 13:52:00,324 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 13:52:00,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-07-23 13:52:00,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2018-07-23 13:52:00,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-07-23 13:52:00,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2018-07-23 13:52:00,331 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 27 [2018-07-23 13:52:00,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:00,331 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2018-07-23 13:52:00,331 INFO L472 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-07-23 13:52:00,331 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2018-07-23 13:52:00,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-07-23 13:52:00,332 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:00,332 INFO L357 BasicCegarLoop]: trace histogram [25, 1, 1, 1] [2018-07-23 13:52:00,332 INFO L414 AbstractCegarLoop]: === Iteration 26 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:00,333 INFO L82 PathProgramCache]: Analyzing trace with hash 1094531943, now seen corresponding path program 25 times [2018-07-23 13:52:00,333 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:00,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:00,618 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 13:52:00,619 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:00,619 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-07-23 13:52:00,619 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:00,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:00,620 INFO L185 omatonBuilderFactory]: Interpolants [2196#true, 2197#false, 2198#(and (not (= main_x main_y)) (<= main_a_x 0)), 2199#(and (not (= main_x main_y)) (<= main_a_x 1)), 2200#(and (not (= main_x main_y)) (<= main_a_x 2)), 2201#(and (not (= main_x main_y)) (<= main_a_x 3)), 2202#(and (<= main_a_x 4) (not (= main_x main_y))), 2203#(and (<= main_a_x 5) (not (= main_x main_y))), 2204#(and (not (= main_x main_y)) (<= main_a_x 6)), 2205#(and (<= main_a_x 7) (not (= main_x main_y))), 2206#(and (not (= main_x main_y)) (<= main_a_x 8)), 2207#(and (not (= main_x main_y)) (<= main_a_x 9)), 2208#(and (<= main_a_x 10) (not (= main_x main_y))), 2209#(and (not (= main_x main_y)) (<= main_a_x 11)), 2210#(and (not (= main_x main_y)) (<= main_a_x 12)), 2211#(and (<= main_a_x 13) (not (= main_x main_y))), 2212#(and (not (= main_x main_y)) (<= main_a_x 14)), 2213#(and (<= main_a_x 15) (not (= main_x main_y))), 2214#(and (not (= main_x main_y)) (<= main_a_x 16)), 2215#(and (not (= main_x main_y)) (<= main_a_x 17)), 2216#(and (<= main_a_x 18) (not (= main_x main_y))), 2217#(and (<= main_a_x 19) (not (= main_x main_y))), 2218#(and (not (= main_x main_y)) (<= main_a_x 20)), 2219#(and (not (= main_x main_y)) (<= main_a_x 21)), 2220#(and (not (= main_x main_y)) (<= main_a_x 22)), 2221#(and (<= main_a_x 23) (not (= main_x main_y))), 2222#(and (not (= main_x main_y)) (<= main_a_x 24)), 2223#(<= main_a_x 25)] [2018-07-23 13:52:00,620 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 13:52:00,621 INFO L450 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-07-23 13:52:00,621 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-07-23 13:52:00,623 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2018-07-23 13:52:00,624 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand 28 states. [2018-07-23 13:52:00,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:00,645 INFO L93 Difference]: Finished difference Result 32 states and 32 transitions. [2018-07-23 13:52:00,645 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-07-23 13:52:00,645 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 28 [2018-07-23 13:52:00,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:00,645 INFO L225 Difference]: With dead ends: 32 [2018-07-23 13:52:00,646 INFO L226 Difference]: Without dead ends: 30 [2018-07-23 13:52:00,650 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 13:52:00,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-07-23 13:52:00,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2018-07-23 13:52:00,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-07-23 13:52:00,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2018-07-23 13:52:00,655 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 28 [2018-07-23 13:52:00,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:00,655 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2018-07-23 13:52:00,655 INFO L472 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-07-23 13:52:00,655 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2018-07-23 13:52:00,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-07-23 13:52:00,656 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:00,656 INFO L357 BasicCegarLoop]: trace histogram [26, 1, 1, 1] [2018-07-23 13:52:00,656 INFO L414 AbstractCegarLoop]: === Iteration 27 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:00,657 INFO L82 PathProgramCache]: Analyzing trace with hash -429232756, now seen corresponding path program 26 times [2018-07-23 13:52:00,657 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:00,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:00,955 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 13:52:00,955 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:00,955 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2018-07-23 13:52:00,956 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:00,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:00,956 INFO L185 omatonBuilderFactory]: Interpolants [2368#(and (<= main_a_x 18) (not (= main_x main_y))), 2369#(and (<= main_a_x 19) (not (= main_x main_y))), 2370#(and (not (= main_x main_y)) (<= main_a_x 20)), 2371#(and (not (= main_x main_y)) (<= main_a_x 21)), 2372#(and (not (= main_x main_y)) (<= main_a_x 22)), 2373#(and (<= main_a_x 23) (not (= main_x main_y))), 2374#(and (not (= main_x main_y)) (<= main_a_x 24)), 2375#(and (<= main_a_x 25) (not (= main_x main_y))), 2376#(<= main_a_x 26), 2348#true, 2349#false, 2350#(and (not (= main_x main_y)) (<= main_a_x 0)), 2351#(and (not (= main_x main_y)) (<= main_a_x 1)), 2352#(and (not (= main_x main_y)) (<= main_a_x 2)), 2353#(and (not (= main_x main_y)) (<= main_a_x 3)), 2354#(and (<= main_a_x 4) (not (= main_x main_y))), 2355#(and (<= main_a_x 5) (not (= main_x main_y))), 2356#(and (not (= main_x main_y)) (<= main_a_x 6)), 2357#(and (<= main_a_x 7) (not (= main_x main_y))), 2358#(and (not (= main_x main_y)) (<= main_a_x 8)), 2359#(and (not (= main_x main_y)) (<= main_a_x 9)), 2360#(and (<= main_a_x 10) (not (= main_x main_y))), 2361#(and (not (= main_x main_y)) (<= main_a_x 11)), 2362#(and (not (= main_x main_y)) (<= main_a_x 12)), 2363#(and (<= main_a_x 13) (not (= main_x main_y))), 2364#(and (not (= main_x main_y)) (<= main_a_x 14)), 2365#(and (<= main_a_x 15) (not (= main_x main_y))), 2366#(and (not (= main_x main_y)) (<= main_a_x 16)), 2367#(and (not (= main_x main_y)) (<= main_a_x 17))] [2018-07-23 13:52:00,957 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 13:52:00,957 INFO L450 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-07-23 13:52:00,957 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-07-23 13:52:00,958 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=406, Invalid=406, Unknown=0, NotChecked=0, Total=812 [2018-07-23 13:52:00,958 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand 29 states. [2018-07-23 13:52:00,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:00,975 INFO L93 Difference]: Finished difference Result 33 states and 33 transitions. [2018-07-23 13:52:00,976 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-07-23 13:52:00,976 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 29 [2018-07-23 13:52:00,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:00,976 INFO L225 Difference]: With dead ends: 33 [2018-07-23 13:52:00,977 INFO L226 Difference]: Without dead ends: 31 [2018-07-23 13:52:00,977 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=406, Invalid=406, Unknown=0, NotChecked=0, Total=812 [2018-07-23 13:52:00,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-07-23 13:52:00,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2018-07-23 13:52:00,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-07-23 13:52:00,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2018-07-23 13:52:00,982 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 29 [2018-07-23 13:52:00,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:00,982 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2018-07-23 13:52:00,982 INFO L472 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-07-23 13:52:00,983 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2018-07-23 13:52:00,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-07-23 13:52:00,983 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:00,983 INFO L357 BasicCegarLoop]: trace histogram [27, 1, 1, 1] [2018-07-23 13:52:00,984 INFO L414 AbstractCegarLoop]: === Iteration 28 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:00,984 INFO L82 PathProgramCache]: Analyzing trace with hash -421298169, now seen corresponding path program 27 times [2018-07-23 13:52:00,984 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:00,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:01,289 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 13:52:01,289 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:01,290 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2018-07-23 13:52:01,290 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:01,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:01,290 INFO L185 omatonBuilderFactory]: Interpolants [2505#true, 2506#false, 2507#(and (not (= main_x main_y)) (<= main_a_x 0)), 2508#(and (not (= main_x main_y)) (<= main_a_x 1)), 2509#(and (not (= main_x main_y)) (<= main_a_x 2)), 2510#(and (not (= main_x main_y)) (<= main_a_x 3)), 2511#(and (<= main_a_x 4) (not (= main_x main_y))), 2512#(and (<= main_a_x 5) (not (= main_x main_y))), 2513#(and (not (= main_x main_y)) (<= main_a_x 6)), 2514#(and (<= main_a_x 7) (not (= main_x main_y))), 2515#(and (not (= main_x main_y)) (<= main_a_x 8)), 2516#(and (not (= main_x main_y)) (<= main_a_x 9)), 2517#(and (<= main_a_x 10) (not (= main_x main_y))), 2518#(and (not (= main_x main_y)) (<= main_a_x 11)), 2519#(and (not (= main_x main_y)) (<= main_a_x 12)), 2520#(and (<= main_a_x 13) (not (= main_x main_y))), 2521#(and (not (= main_x main_y)) (<= main_a_x 14)), 2522#(and (<= main_a_x 15) (not (= main_x main_y))), 2523#(and (not (= main_x main_y)) (<= main_a_x 16)), 2524#(and (not (= main_x main_y)) (<= main_a_x 17)), 2525#(and (<= main_a_x 18) (not (= main_x main_y))), 2526#(and (<= main_a_x 19) (not (= main_x main_y))), 2527#(and (not (= main_x main_y)) (<= main_a_x 20)), 2528#(and (not (= main_x main_y)) (<= main_a_x 21)), 2529#(and (not (= main_x main_y)) (<= main_a_x 22)), 2530#(and (<= main_a_x 23) (not (= main_x main_y))), 2531#(and (not (= main_x main_y)) (<= main_a_x 24)), 2532#(and (<= main_a_x 25) (not (= main_x main_y))), 2533#(and (not (= main_x main_y)) (<= main_a_x 26)), 2534#(<= main_a_x 27)] [2018-07-23 13:52:01,291 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 13:52:01,291 INFO L450 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-07-23 13:52:01,292 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-07-23 13:52:01,292 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=435, Invalid=435, Unknown=0, NotChecked=0, Total=870 [2018-07-23 13:52:01,292 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand 30 states. [2018-07-23 13:52:01,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:01,317 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2018-07-23 13:52:01,317 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-07-23 13:52:01,317 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 30 [2018-07-23 13:52:01,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:01,318 INFO L225 Difference]: With dead ends: 34 [2018-07-23 13:52:01,318 INFO L226 Difference]: Without dead ends: 32 [2018-07-23 13:52:01,319 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=435, Invalid=435, Unknown=0, NotChecked=0, Total=870 [2018-07-23 13:52:01,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-07-23 13:52:01,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-07-23 13:52:01,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-07-23 13:52:01,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2018-07-23 13:52:01,329 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 30 [2018-07-23 13:52:01,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:01,329 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2018-07-23 13:52:01,329 INFO L472 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-07-23 13:52:01,329 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2018-07-23 13:52:01,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-07-23 13:52:01,330 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:01,330 INFO L357 BasicCegarLoop]: trace histogram [28, 1, 1, 1] [2018-07-23 13:52:01,330 INFO L414 AbstractCegarLoop]: === Iteration 29 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:01,330 INFO L82 PathProgramCache]: Analyzing trace with hash -175325972, now seen corresponding path program 28 times [2018-07-23 13:52:01,330 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:01,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:01,643 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 13:52:01,644 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:01,644 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2018-07-23 13:52:01,644 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:01,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:01,645 INFO L185 omatonBuilderFactory]: Interpolants [2688#(and (<= main_a_x 19) (not (= main_x main_y))), 2689#(and (not (= main_x main_y)) (<= main_a_x 20)), 2690#(and (not (= main_x main_y)) (<= main_a_x 21)), 2691#(and (not (= main_x main_y)) (<= main_a_x 22)), 2692#(and (<= main_a_x 23) (not (= main_x main_y))), 2693#(and (not (= main_x main_y)) (<= main_a_x 24)), 2694#(and (<= main_a_x 25) (not (= main_x main_y))), 2695#(and (not (= main_x main_y)) (<= main_a_x 26)), 2696#(and (not (= main_x main_y)) (<= main_a_x 27)), 2697#(<= main_a_x 28), 2667#true, 2668#false, 2669#(and (not (= main_x main_y)) (<= main_a_x 0)), 2670#(and (not (= main_x main_y)) (<= main_a_x 1)), 2671#(and (not (= main_x main_y)) (<= main_a_x 2)), 2672#(and (not (= main_x main_y)) (<= main_a_x 3)), 2673#(and (<= main_a_x 4) (not (= main_x main_y))), 2674#(and (<= main_a_x 5) (not (= main_x main_y))), 2675#(and (not (= main_x main_y)) (<= main_a_x 6)), 2676#(and (<= main_a_x 7) (not (= main_x main_y))), 2677#(and (not (= main_x main_y)) (<= main_a_x 8)), 2678#(and (not (= main_x main_y)) (<= main_a_x 9)), 2679#(and (<= main_a_x 10) (not (= main_x main_y))), 2680#(and (not (= main_x main_y)) (<= main_a_x 11)), 2681#(and (not (= main_x main_y)) (<= main_a_x 12)), 2682#(and (<= main_a_x 13) (not (= main_x main_y))), 2683#(and (not (= main_x main_y)) (<= main_a_x 14)), 2684#(and (<= main_a_x 15) (not (= main_x main_y))), 2685#(and (not (= main_x main_y)) (<= main_a_x 16)), 2686#(and (not (= main_x main_y)) (<= main_a_x 17)), 2687#(and (<= main_a_x 18) (not (= main_x main_y)))] [2018-07-23 13:52:01,645 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 13:52:01,645 INFO L450 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-07-23 13:52:01,646 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-07-23 13:52:01,646 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=465, Invalid=465, Unknown=0, NotChecked=0, Total=930 [2018-07-23 13:52:01,647 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand 31 states. [2018-07-23 13:52:01,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:01,668 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2018-07-23 13:52:01,668 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-07-23 13:52:01,669 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 31 [2018-07-23 13:52:01,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:01,669 INFO L225 Difference]: With dead ends: 35 [2018-07-23 13:52:01,669 INFO L226 Difference]: Without dead ends: 33 [2018-07-23 13:52:01,670 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 13:52:01,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-07-23 13:52:01,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-07-23 13:52:01,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-07-23 13:52:01,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 33 transitions. [2018-07-23 13:52:01,680 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 33 transitions. Word has length 31 [2018-07-23 13:52:01,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:01,680 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 33 transitions. [2018-07-23 13:52:01,680 INFO L472 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-07-23 13:52:01,680 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 33 transitions. [2018-07-23 13:52:01,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-07-23 13:52:01,681 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:01,681 INFO L357 BasicCegarLoop]: trace histogram [29, 1, 1, 1] [2018-07-23 13:52:01,681 INFO L414 AbstractCegarLoop]: === Iteration 30 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:01,681 INFO L82 PathProgramCache]: Analyzing trace with hash -1140122457, now seen corresponding path program 29 times [2018-07-23 13:52:01,681 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:01,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:02,022 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 13:52:02,022 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:02,022 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2018-07-23 13:52:02,023 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:02,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:02,023 INFO L185 omatonBuilderFactory]: Interpolants [2834#true, 2835#false, 2836#(and (not (= main_x main_y)) (<= main_a_x 0)), 2837#(and (not (= main_x main_y)) (<= main_a_x 1)), 2838#(and (not (= main_x main_y)) (<= main_a_x 2)), 2839#(and (not (= main_x main_y)) (<= main_a_x 3)), 2840#(and (<= main_a_x 4) (not (= main_x main_y))), 2841#(and (<= main_a_x 5) (not (= main_x main_y))), 2842#(and (not (= main_x main_y)) (<= main_a_x 6)), 2843#(and (<= main_a_x 7) (not (= main_x main_y))), 2844#(and (not (= main_x main_y)) (<= main_a_x 8)), 2845#(and (not (= main_x main_y)) (<= main_a_x 9)), 2846#(and (<= main_a_x 10) (not (= main_x main_y))), 2847#(and (not (= main_x main_y)) (<= main_a_x 11)), 2848#(and (not (= main_x main_y)) (<= main_a_x 12)), 2849#(and (<= main_a_x 13) (not (= main_x main_y))), 2850#(and (not (= main_x main_y)) (<= main_a_x 14)), 2851#(and (<= main_a_x 15) (not (= main_x main_y))), 2852#(and (not (= main_x main_y)) (<= main_a_x 16)), 2853#(and (not (= main_x main_y)) (<= main_a_x 17)), 2854#(and (<= main_a_x 18) (not (= main_x main_y))), 2855#(and (<= main_a_x 19) (not (= main_x main_y))), 2856#(and (not (= main_x main_y)) (<= main_a_x 20)), 2857#(and (not (= main_x main_y)) (<= main_a_x 21)), 2858#(and (not (= main_x main_y)) (<= main_a_x 22)), 2859#(and (<= main_a_x 23) (not (= main_x main_y))), 2860#(and (not (= main_x main_y)) (<= main_a_x 24)), 2861#(and (<= main_a_x 25) (not (= main_x main_y))), 2862#(and (not (= main_x main_y)) (<= main_a_x 26)), 2863#(and (not (= main_x main_y)) (<= main_a_x 27)), 2864#(and (not (= main_x main_y)) (<= main_a_x 28)), 2865#(<= main_a_x 29)] [2018-07-23 13:52:02,024 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 13:52:02,024 INFO L450 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-07-23 13:52:02,025 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-07-23 13:52:02,025 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2018-07-23 13:52:02,026 INFO L87 Difference]: Start difference. First operand 33 states and 33 transitions. Second operand 32 states. [2018-07-23 13:52:02,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:02,051 INFO L93 Difference]: Finished difference Result 36 states and 36 transitions. [2018-07-23 13:52:02,051 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-07-23 13:52:02,051 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 32 [2018-07-23 13:52:02,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:02,052 INFO L225 Difference]: With dead ends: 36 [2018-07-23 13:52:02,052 INFO L226 Difference]: Without dead ends: 34 [2018-07-23 13:52:02,054 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 13:52:02,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-07-23 13:52:02,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-07-23 13:52:02,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-07-23 13:52:02,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2018-07-23 13:52:02,062 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 32 [2018-07-23 13:52:02,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:02,062 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2018-07-23 13:52:02,062 INFO L472 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-07-23 13:52:02,063 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2018-07-23 13:52:02,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-07-23 13:52:02,063 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:02,063 INFO L357 BasicCegarLoop]: trace histogram [30, 1, 1, 1] [2018-07-23 13:52:02,063 INFO L414 AbstractCegarLoop]: === Iteration 31 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:02,064 INFO L82 PathProgramCache]: Analyzing trace with hash -984042420, now seen corresponding path program 30 times [2018-07-23 13:52:02,064 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:02,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:02,454 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 13:52:02,454 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:02,454 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2018-07-23 13:52:02,455 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:02,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:02,455 INFO L185 omatonBuilderFactory]: Interpolants [3008#(and (not (= main_x main_y)) (<= main_a_x 0)), 3009#(and (not (= main_x main_y)) (<= main_a_x 1)), 3010#(and (not (= main_x main_y)) (<= main_a_x 2)), 3011#(and (not (= main_x main_y)) (<= main_a_x 3)), 3012#(and (<= main_a_x 4) (not (= main_x main_y))), 3013#(and (<= main_a_x 5) (not (= main_x main_y))), 3014#(and (not (= main_x main_y)) (<= main_a_x 6)), 3015#(and (<= main_a_x 7) (not (= main_x main_y))), 3016#(and (not (= main_x main_y)) (<= main_a_x 8)), 3017#(and (not (= main_x main_y)) (<= main_a_x 9)), 3018#(and (<= main_a_x 10) (not (= main_x main_y))), 3019#(and (not (= main_x main_y)) (<= main_a_x 11)), 3020#(and (not (= main_x main_y)) (<= main_a_x 12)), 3021#(and (<= main_a_x 13) (not (= main_x main_y))), 3022#(and (not (= main_x main_y)) (<= main_a_x 14)), 3023#(and (<= main_a_x 15) (not (= main_x main_y))), 3024#(and (not (= main_x main_y)) (<= main_a_x 16)), 3025#(and (not (= main_x main_y)) (<= main_a_x 17)), 3026#(and (<= main_a_x 18) (not (= main_x main_y))), 3027#(and (<= main_a_x 19) (not (= main_x main_y))), 3028#(and (not (= main_x main_y)) (<= main_a_x 20)), 3029#(and (not (= main_x main_y)) (<= main_a_x 21)), 3030#(and (not (= main_x main_y)) (<= main_a_x 22)), 3031#(and (<= main_a_x 23) (not (= main_x main_y))), 3032#(and (not (= main_x main_y)) (<= main_a_x 24)), 3033#(and (<= main_a_x 25) (not (= main_x main_y))), 3034#(and (not (= main_x main_y)) (<= main_a_x 26)), 3035#(and (not (= main_x main_y)) (<= main_a_x 27)), 3036#(and (not (= main_x main_y)) (<= main_a_x 28)), 3037#(and (not (= main_x main_y)) (<= main_a_x 29)), 3038#(<= main_a_x 30), 3006#true, 3007#false] [2018-07-23 13:52:02,456 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 13:52:02,456 INFO L450 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-07-23 13:52:02,456 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-07-23 13:52:02,457 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2018-07-23 13:52:02,457 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand 33 states. [2018-07-23 13:52:02,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:02,483 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2018-07-23 13:52:02,484 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-07-23 13:52:02,484 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 33 [2018-07-23 13:52:02,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:02,484 INFO L225 Difference]: With dead ends: 37 [2018-07-23 13:52:02,485 INFO L226 Difference]: Without dead ends: 35 [2018-07-23 13:52:02,485 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 13:52:02,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-07-23 13:52:02,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-07-23 13:52:02,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-07-23 13:52:02,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2018-07-23 13:52:02,490 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 33 [2018-07-23 13:52:02,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:02,490 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2018-07-23 13:52:02,490 INFO L472 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-07-23 13:52:02,490 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2018-07-23 13:52:02,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-07-23 13:52:02,491 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:02,491 INFO L357 BasicCegarLoop]: trace histogram [31, 1, 1, 1] [2018-07-23 13:52:02,491 INFO L414 AbstractCegarLoop]: === Iteration 32 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:02,492 INFO L82 PathProgramCache]: Analyzing trace with hash -440528569, now seen corresponding path program 31 times [2018-07-23 13:52:02,492 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:02,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:02,905 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 13:52:02,906 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:02,906 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2018-07-23 13:52:02,906 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:02,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:02,907 INFO L185 omatonBuilderFactory]: Interpolants [3200#(and (<= main_a_x 15) (not (= main_x main_y))), 3201#(and (not (= main_x main_y)) (<= main_a_x 16)), 3202#(and (not (= main_x main_y)) (<= main_a_x 17)), 3203#(and (<= main_a_x 18) (not (= main_x main_y))), 3204#(and (<= main_a_x 19) (not (= main_x main_y))), 3205#(and (not (= main_x main_y)) (<= main_a_x 20)), 3206#(and (not (= main_x main_y)) (<= main_a_x 21)), 3207#(and (not (= main_x main_y)) (<= main_a_x 22)), 3208#(and (<= main_a_x 23) (not (= main_x main_y))), 3209#(and (not (= main_x main_y)) (<= main_a_x 24)), 3210#(and (<= main_a_x 25) (not (= main_x main_y))), 3211#(and (not (= main_x main_y)) (<= main_a_x 26)), 3212#(and (not (= main_x main_y)) (<= main_a_x 27)), 3213#(and (not (= main_x main_y)) (<= main_a_x 28)), 3214#(and (not (= main_x main_y)) (<= main_a_x 29)), 3215#(and (<= main_a_x 30) (not (= main_x main_y))), 3216#(<= main_a_x 31), 3183#true, 3184#false, 3185#(and (not (= main_x main_y)) (<= main_a_x 0)), 3186#(and (not (= main_x main_y)) (<= main_a_x 1)), 3187#(and (not (= main_x main_y)) (<= main_a_x 2)), 3188#(and (not (= main_x main_y)) (<= main_a_x 3)), 3189#(and (<= main_a_x 4) (not (= main_x main_y))), 3190#(and (<= main_a_x 5) (not (= main_x main_y))), 3191#(and (not (= main_x main_y)) (<= main_a_x 6)), 3192#(and (<= main_a_x 7) (not (= main_x main_y))), 3193#(and (not (= main_x main_y)) (<= main_a_x 8)), 3194#(and (not (= main_x main_y)) (<= main_a_x 9)), 3195#(and (<= main_a_x 10) (not (= main_x main_y))), 3196#(and (not (= main_x main_y)) (<= main_a_x 11)), 3197#(and (not (= main_x main_y)) (<= main_a_x 12)), 3198#(and (<= main_a_x 13) (not (= main_x main_y))), 3199#(and (not (= main_x main_y)) (<= main_a_x 14))] [2018-07-23 13:52:02,907 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 13:52:02,908 INFO L450 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-07-23 13:52:02,908 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-07-23 13:52:02,908 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=561, Invalid=561, Unknown=0, NotChecked=0, Total=1122 [2018-07-23 13:52:02,909 INFO L87 Difference]: Start difference. First operand 35 states and 35 transitions. Second operand 34 states. [2018-07-23 13:52:02,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:02,928 INFO L93 Difference]: Finished difference Result 38 states and 38 transitions. [2018-07-23 13:52:02,928 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-07-23 13:52:02,928 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 34 [2018-07-23 13:52:02,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:02,929 INFO L225 Difference]: With dead ends: 38 [2018-07-23 13:52:02,929 INFO L226 Difference]: Without dead ends: 36 [2018-07-23 13:52:02,930 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 13:52:02,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-07-23 13:52:02,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-07-23 13:52:02,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-07-23 13:52:02,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2018-07-23 13:52:02,934 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 34 [2018-07-23 13:52:02,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:02,934 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2018-07-23 13:52:02,934 INFO L472 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-07-23 13:52:02,935 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2018-07-23 13:52:02,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-07-23 13:52:02,935 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:02,935 INFO L357 BasicCegarLoop]: trace histogram [32, 1, 1, 1] [2018-07-23 13:52:02,935 INFO L414 AbstractCegarLoop]: === Iteration 33 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:02,936 INFO L82 PathProgramCache]: Analyzing trace with hash -771468372, now seen corresponding path program 32 times [2018-07-23 13:52:02,936 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:02,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:03,254 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 13:52:03,255 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:03,255 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2018-07-23 13:52:03,255 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:03,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:03,256 INFO L185 omatonBuilderFactory]: Interpolants [3392#(and (<= main_a_x 25) (not (= main_x main_y))), 3393#(and (not (= main_x main_y)) (<= main_a_x 26)), 3394#(and (not (= main_x main_y)) (<= main_a_x 27)), 3395#(and (not (= main_x main_y)) (<= main_a_x 28)), 3396#(and (not (= main_x main_y)) (<= main_a_x 29)), 3397#(and (<= main_a_x 30) (not (= main_x main_y))), 3398#(and (<= main_a_x 31) (not (= main_x main_y))), 3399#(<= main_a_x 32), 3365#true, 3366#false, 3367#(and (not (= main_x main_y)) (<= main_a_x 0)), 3368#(and (not (= main_x main_y)) (<= main_a_x 1)), 3369#(and (not (= main_x main_y)) (<= main_a_x 2)), 3370#(and (not (= main_x main_y)) (<= main_a_x 3)), 3371#(and (<= main_a_x 4) (not (= main_x main_y))), 3372#(and (<= main_a_x 5) (not (= main_x main_y))), 3373#(and (not (= main_x main_y)) (<= main_a_x 6)), 3374#(and (<= main_a_x 7) (not (= main_x main_y))), 3375#(and (not (= main_x main_y)) (<= main_a_x 8)), 3376#(and (not (= main_x main_y)) (<= main_a_x 9)), 3377#(and (<= main_a_x 10) (not (= main_x main_y))), 3378#(and (not (= main_x main_y)) (<= main_a_x 11)), 3379#(and (not (= main_x main_y)) (<= main_a_x 12)), 3380#(and (<= main_a_x 13) (not (= main_x main_y))), 3381#(and (not (= main_x main_y)) (<= main_a_x 14)), 3382#(and (<= main_a_x 15) (not (= main_x main_y))), 3383#(and (not (= main_x main_y)) (<= main_a_x 16)), 3384#(and (not (= main_x main_y)) (<= main_a_x 17)), 3385#(and (<= main_a_x 18) (not (= main_x main_y))), 3386#(and (<= main_a_x 19) (not (= main_x main_y))), 3387#(and (not (= main_x main_y)) (<= main_a_x 20)), 3388#(and (not (= main_x main_y)) (<= main_a_x 21)), 3389#(and (not (= main_x main_y)) (<= main_a_x 22)), 3390#(and (<= main_a_x 23) (not (= main_x main_y))), 3391#(and (not (= main_x main_y)) (<= main_a_x 24))] [2018-07-23 13:52:03,256 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 13:52:03,256 INFO L450 AbstractCegarLoop]: Interpolant automaton has 35 states [2018-07-23 13:52:03,257 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2018-07-23 13:52:03,258 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=595, Invalid=595, Unknown=0, NotChecked=0, Total=1190 [2018-07-23 13:52:03,258 INFO L87 Difference]: Start difference. First operand 36 states and 36 transitions. Second operand 35 states. [2018-07-23 13:52:03,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:03,277 INFO L93 Difference]: Finished difference Result 39 states and 39 transitions. [2018-07-23 13:52:03,277 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-07-23 13:52:03,277 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 35 [2018-07-23 13:52:03,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:03,278 INFO L225 Difference]: With dead ends: 39 [2018-07-23 13:52:03,278 INFO L226 Difference]: Without dead ends: 37 [2018-07-23 13:52:03,279 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=595, Invalid=595, Unknown=0, NotChecked=0, Total=1190 [2018-07-23 13:52:03,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-07-23 13:52:03,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-07-23 13:52:03,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-07-23 13:52:03,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 37 transitions. [2018-07-23 13:52:03,283 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 37 transitions. Word has length 35 [2018-07-23 13:52:03,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:03,283 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 37 transitions. [2018-07-23 13:52:03,283 INFO L472 AbstractCegarLoop]: Interpolant automaton has 35 states. [2018-07-23 13:52:03,283 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2018-07-23 13:52:03,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-07-23 13:52:03,284 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:03,284 INFO L357 BasicCegarLoop]: trace histogram [33, 1, 1, 1] [2018-07-23 13:52:03,284 INFO L414 AbstractCegarLoop]: === Iteration 34 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:03,285 INFO L82 PathProgramCache]: Analyzing trace with hash 1854299623, now seen corresponding path program 33 times [2018-07-23 13:52:03,285 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:03,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:03,628 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 13:52:03,629 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:03,629 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2018-07-23 13:52:03,629 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:03,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:03,630 INFO L185 omatonBuilderFactory]: Interpolants [3584#(and (<= main_a_x 30) (not (= main_x main_y))), 3585#(and (<= main_a_x 31) (not (= main_x main_y))), 3586#(and (not (= main_x main_y)) (<= main_a_x 32)), 3587#(<= main_a_x 33), 3552#true, 3553#false, 3554#(and (not (= main_x main_y)) (<= main_a_x 0)), 3555#(and (not (= main_x main_y)) (<= main_a_x 1)), 3556#(and (not (= main_x main_y)) (<= main_a_x 2)), 3557#(and (not (= main_x main_y)) (<= main_a_x 3)), 3558#(and (<= main_a_x 4) (not (= main_x main_y))), 3559#(and (<= main_a_x 5) (not (= main_x main_y))), 3560#(and (not (= main_x main_y)) (<= main_a_x 6)), 3561#(and (<= main_a_x 7) (not (= main_x main_y))), 3562#(and (not (= main_x main_y)) (<= main_a_x 8)), 3563#(and (not (= main_x main_y)) (<= main_a_x 9)), 3564#(and (<= main_a_x 10) (not (= main_x main_y))), 3565#(and (not (= main_x main_y)) (<= main_a_x 11)), 3566#(and (not (= main_x main_y)) (<= main_a_x 12)), 3567#(and (<= main_a_x 13) (not (= main_x main_y))), 3568#(and (not (= main_x main_y)) (<= main_a_x 14)), 3569#(and (<= main_a_x 15) (not (= main_x main_y))), 3570#(and (not (= main_x main_y)) (<= main_a_x 16)), 3571#(and (not (= main_x main_y)) (<= main_a_x 17)), 3572#(and (<= main_a_x 18) (not (= main_x main_y))), 3573#(and (<= main_a_x 19) (not (= main_x main_y))), 3574#(and (not (= main_x main_y)) (<= main_a_x 20)), 3575#(and (not (= main_x main_y)) (<= main_a_x 21)), 3576#(and (not (= main_x main_y)) (<= main_a_x 22)), 3577#(and (<= main_a_x 23) (not (= main_x main_y))), 3578#(and (not (= main_x main_y)) (<= main_a_x 24)), 3579#(and (<= main_a_x 25) (not (= main_x main_y))), 3580#(and (not (= main_x main_y)) (<= main_a_x 26)), 3581#(and (not (= main_x main_y)) (<= main_a_x 27)), 3582#(and (not (= main_x main_y)) (<= main_a_x 28)), 3583#(and (not (= main_x main_y)) (<= main_a_x 29))] [2018-07-23 13:52:03,630 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 13:52:03,630 INFO L450 AbstractCegarLoop]: Interpolant automaton has 36 states [2018-07-23 13:52:03,631 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2018-07-23 13:52:03,632 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=630, Invalid=630, Unknown=0, NotChecked=0, Total=1260 [2018-07-23 13:52:03,632 INFO L87 Difference]: Start difference. First operand 37 states and 37 transitions. Second operand 36 states. [2018-07-23 13:52:03,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:03,651 INFO L93 Difference]: Finished difference Result 40 states and 40 transitions. [2018-07-23 13:52:03,651 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-07-23 13:52:03,651 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 36 [2018-07-23 13:52:03,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:03,652 INFO L225 Difference]: With dead ends: 40 [2018-07-23 13:52:03,652 INFO L226 Difference]: Without dead ends: 38 [2018-07-23 13:52:03,653 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=630, Invalid=630, Unknown=0, NotChecked=0, Total=1260 [2018-07-23 13:52:03,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-07-23 13:52:03,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-07-23 13:52:03,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-07-23 13:52:03,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 38 transitions. [2018-07-23 13:52:03,656 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 38 transitions. Word has length 36 [2018-07-23 13:52:03,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:03,657 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 38 transitions. [2018-07-23 13:52:03,657 INFO L472 AbstractCegarLoop]: Interpolant automaton has 36 states. [2018-07-23 13:52:03,657 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 38 transitions. [2018-07-23 13:52:03,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-07-23 13:52:03,657 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:03,658 INFO L357 BasicCegarLoop]: trace histogram [34, 1, 1, 1] [2018-07-23 13:52:03,658 INFO L414 AbstractCegarLoop]: === Iteration 35 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:03,658 INFO L82 PathProgramCache]: Analyzing trace with hash 1648728844, now seen corresponding path program 34 times [2018-07-23 13:52:03,658 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:03,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:04,019 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 13:52:04,019 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:04,019 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2018-07-23 13:52:04,019 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:04,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:04,020 INFO L185 omatonBuilderFactory]: Interpolants [3776#(and (<= main_a_x 30) (not (= main_x main_y))), 3777#(and (<= main_a_x 31) (not (= main_x main_y))), 3778#(and (not (= main_x main_y)) (<= main_a_x 32)), 3779#(and (not (= main_x main_y)) (<= main_a_x 33)), 3780#(<= main_a_x 34), 3744#true, 3745#false, 3746#(and (not (= main_x main_y)) (<= main_a_x 0)), 3747#(and (not (= main_x main_y)) (<= main_a_x 1)), 3748#(and (not (= main_x main_y)) (<= main_a_x 2)), 3749#(and (not (= main_x main_y)) (<= main_a_x 3)), 3750#(and (<= main_a_x 4) (not (= main_x main_y))), 3751#(and (<= main_a_x 5) (not (= main_x main_y))), 3752#(and (not (= main_x main_y)) (<= main_a_x 6)), 3753#(and (<= main_a_x 7) (not (= main_x main_y))), 3754#(and (not (= main_x main_y)) (<= main_a_x 8)), 3755#(and (not (= main_x main_y)) (<= main_a_x 9)), 3756#(and (<= main_a_x 10) (not (= main_x main_y))), 3757#(and (not (= main_x main_y)) (<= main_a_x 11)), 3758#(and (not (= main_x main_y)) (<= main_a_x 12)), 3759#(and (<= main_a_x 13) (not (= main_x main_y))), 3760#(and (not (= main_x main_y)) (<= main_a_x 14)), 3761#(and (<= main_a_x 15) (not (= main_x main_y))), 3762#(and (not (= main_x main_y)) (<= main_a_x 16)), 3763#(and (not (= main_x main_y)) (<= main_a_x 17)), 3764#(and (<= main_a_x 18) (not (= main_x main_y))), 3765#(and (<= main_a_x 19) (not (= main_x main_y))), 3766#(and (not (= main_x main_y)) (<= main_a_x 20)), 3767#(and (not (= main_x main_y)) (<= main_a_x 21)), 3768#(and (not (= main_x main_y)) (<= main_a_x 22)), 3769#(and (<= main_a_x 23) (not (= main_x main_y))), 3770#(and (not (= main_x main_y)) (<= main_a_x 24)), 3771#(and (<= main_a_x 25) (not (= main_x main_y))), 3772#(and (not (= main_x main_y)) (<= main_a_x 26)), 3773#(and (not (= main_x main_y)) (<= main_a_x 27)), 3774#(and (not (= main_x main_y)) (<= main_a_x 28)), 3775#(and (not (= main_x main_y)) (<= main_a_x 29))] [2018-07-23 13:52:04,021 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 13:52:04,021 INFO L450 AbstractCegarLoop]: Interpolant automaton has 37 states [2018-07-23 13:52:04,021 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2018-07-23 13:52:04,022 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=666, Invalid=666, Unknown=0, NotChecked=0, Total=1332 [2018-07-23 13:52:04,022 INFO L87 Difference]: Start difference. First operand 38 states and 38 transitions. Second operand 37 states. [2018-07-23 13:52:04,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:04,041 INFO L93 Difference]: Finished difference Result 41 states and 41 transitions. [2018-07-23 13:52:04,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-07-23 13:52:04,042 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 37 [2018-07-23 13:52:04,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:04,042 INFO L225 Difference]: With dead ends: 41 [2018-07-23 13:52:04,042 INFO L226 Difference]: Without dead ends: 39 [2018-07-23 13:52:04,043 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=666, Invalid=666, Unknown=0, NotChecked=0, Total=1332 [2018-07-23 13:52:04,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-07-23 13:52:04,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-07-23 13:52:04,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-07-23 13:52:04,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 39 transitions. [2018-07-23 13:52:04,047 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 39 transitions. Word has length 37 [2018-07-23 13:52:04,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:04,047 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 39 transitions. [2018-07-23 13:52:04,047 INFO L472 AbstractCegarLoop]: Interpolant automaton has 37 states. [2018-07-23 13:52:04,048 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 39 transitions. [2018-07-23 13:52:04,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-07-23 13:52:04,048 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:04,048 INFO L357 BasicCegarLoop]: trace histogram [35, 1, 1, 1] [2018-07-23 13:52:04,048 INFO L414 AbstractCegarLoop]: === Iteration 36 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:04,048 INFO L82 PathProgramCache]: Analyzing trace with hash -428998009, now seen corresponding path program 35 times [2018-07-23 13:52:04,049 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:04,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:04,422 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 13:52:04,422 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:04,423 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [37] total 37 [2018-07-23 13:52:04,423 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:04,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:04,423 INFO L185 omatonBuilderFactory]: Interpolants [3968#(and (<= main_a_x 25) (not (= main_x main_y))), 3969#(and (not (= main_x main_y)) (<= main_a_x 26)), 3970#(and (not (= main_x main_y)) (<= main_a_x 27)), 3971#(and (not (= main_x main_y)) (<= main_a_x 28)), 3972#(and (not (= main_x main_y)) (<= main_a_x 29)), 3973#(and (<= main_a_x 30) (not (= main_x main_y))), 3974#(and (<= main_a_x 31) (not (= main_x main_y))), 3975#(and (not (= main_x main_y)) (<= main_a_x 32)), 3976#(and (not (= main_x main_y)) (<= main_a_x 33)), 3977#(and (not (= main_x main_y)) (<= main_a_x 34)), 3978#(<= main_a_x 35), 3941#true, 3942#false, 3943#(and (not (= main_x main_y)) (<= main_a_x 0)), 3944#(and (not (= main_x main_y)) (<= main_a_x 1)), 3945#(and (not (= main_x main_y)) (<= main_a_x 2)), 3946#(and (not (= main_x main_y)) (<= main_a_x 3)), 3947#(and (<= main_a_x 4) (not (= main_x main_y))), 3948#(and (<= main_a_x 5) (not (= main_x main_y))), 3949#(and (not (= main_x main_y)) (<= main_a_x 6)), 3950#(and (<= main_a_x 7) (not (= main_x main_y))), 3951#(and (not (= main_x main_y)) (<= main_a_x 8)), 3952#(and (not (= main_x main_y)) (<= main_a_x 9)), 3953#(and (<= main_a_x 10) (not (= main_x main_y))), 3954#(and (not (= main_x main_y)) (<= main_a_x 11)), 3955#(and (not (= main_x main_y)) (<= main_a_x 12)), 3956#(and (<= main_a_x 13) (not (= main_x main_y))), 3957#(and (not (= main_x main_y)) (<= main_a_x 14)), 3958#(and (<= main_a_x 15) (not (= main_x main_y))), 3959#(and (not (= main_x main_y)) (<= main_a_x 16)), 3960#(and (not (= main_x main_y)) (<= main_a_x 17)), 3961#(and (<= main_a_x 18) (not (= main_x main_y))), 3962#(and (<= main_a_x 19) (not (= main_x main_y))), 3963#(and (not (= main_x main_y)) (<= main_a_x 20)), 3964#(and (not (= main_x main_y)) (<= main_a_x 21)), 3965#(and (not (= main_x main_y)) (<= main_a_x 22)), 3966#(and (<= main_a_x 23) (not (= main_x main_y))), 3967#(and (not (= main_x main_y)) (<= main_a_x 24))] [2018-07-23 13:52:04,424 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 13:52:04,424 INFO L450 AbstractCegarLoop]: Interpolant automaton has 38 states [2018-07-23 13:52:04,425 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2018-07-23 13:52:04,426 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=703, Invalid=703, Unknown=0, NotChecked=0, Total=1406 [2018-07-23 13:52:04,426 INFO L87 Difference]: Start difference. First operand 39 states and 39 transitions. Second operand 38 states. [2018-07-23 13:52:04,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:04,448 INFO L93 Difference]: Finished difference Result 42 states and 42 transitions. [2018-07-23 13:52:04,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-07-23 13:52:04,448 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 38 [2018-07-23 13:52:04,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:04,449 INFO L225 Difference]: With dead ends: 42 [2018-07-23 13:52:04,449 INFO L226 Difference]: Without dead ends: 40 [2018-07-23 13:52:04,450 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 13:52:04,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-07-23 13:52:04,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2018-07-23 13:52:04,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-07-23 13:52:04,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 40 transitions. [2018-07-23 13:52:04,454 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 40 transitions. Word has length 38 [2018-07-23 13:52:04,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:04,454 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 40 transitions. [2018-07-23 13:52:04,455 INFO L472 AbstractCegarLoop]: Interpolant automaton has 38 states. [2018-07-23 13:52:04,455 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 40 transitions. [2018-07-23 13:52:04,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-07-23 13:52:04,455 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:04,455 INFO L357 BasicCegarLoop]: trace histogram [36, 1, 1, 1] [2018-07-23 13:52:04,455 INFO L414 AbstractCegarLoop]: === Iteration 37 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:04,456 INFO L82 PathProgramCache]: Analyzing trace with hash -414021012, now seen corresponding path program 36 times [2018-07-23 13:52:04,456 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:04,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:04,857 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 13:52:04,857 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:04,857 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2018-07-23 13:52:04,858 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:04,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:04,858 INFO L185 omatonBuilderFactory]: Interpolants [4160#(and (<= main_a_x 15) (not (= main_x main_y))), 4161#(and (not (= main_x main_y)) (<= main_a_x 16)), 4162#(and (not (= main_x main_y)) (<= main_a_x 17)), 4163#(and (<= main_a_x 18) (not (= main_x main_y))), 4164#(and (<= main_a_x 19) (not (= main_x main_y))), 4165#(and (not (= main_x main_y)) (<= main_a_x 20)), 4166#(and (not (= main_x main_y)) (<= main_a_x 21)), 4167#(and (not (= main_x main_y)) (<= main_a_x 22)), 4168#(and (<= main_a_x 23) (not (= main_x main_y))), 4169#(and (not (= main_x main_y)) (<= main_a_x 24)), 4170#(and (<= main_a_x 25) (not (= main_x main_y))), 4171#(and (not (= main_x main_y)) (<= main_a_x 26)), 4172#(and (not (= main_x main_y)) (<= main_a_x 27)), 4173#(and (not (= main_x main_y)) (<= main_a_x 28)), 4174#(and (not (= main_x main_y)) (<= main_a_x 29)), 4175#(and (<= main_a_x 30) (not (= main_x main_y))), 4176#(and (<= main_a_x 31) (not (= main_x main_y))), 4177#(and (not (= main_x main_y)) (<= main_a_x 32)), 4178#(and (not (= main_x main_y)) (<= main_a_x 33)), 4179#(and (not (= main_x main_y)) (<= main_a_x 34)), 4180#(and (<= main_a_x 35) (not (= main_x main_y))), 4181#(<= main_a_x 36), 4143#true, 4144#false, 4145#(and (not (= main_x main_y)) (<= main_a_x 0)), 4146#(and (not (= main_x main_y)) (<= main_a_x 1)), 4147#(and (not (= main_x main_y)) (<= main_a_x 2)), 4148#(and (not (= main_x main_y)) (<= main_a_x 3)), 4149#(and (<= main_a_x 4) (not (= main_x main_y))), 4150#(and (<= main_a_x 5) (not (= main_x main_y))), 4151#(and (not (= main_x main_y)) (<= main_a_x 6)), 4152#(and (<= main_a_x 7) (not (= main_x main_y))), 4153#(and (not (= main_x main_y)) (<= main_a_x 8)), 4154#(and (not (= main_x main_y)) (<= main_a_x 9)), 4155#(and (<= main_a_x 10) (not (= main_x main_y))), 4156#(and (not (= main_x main_y)) (<= main_a_x 11)), 4157#(and (not (= main_x main_y)) (<= main_a_x 12)), 4158#(and (<= main_a_x 13) (not (= main_x main_y))), 4159#(and (not (= main_x main_y)) (<= main_a_x 14))] [2018-07-23 13:52:04,859 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 13:52:04,859 INFO L450 AbstractCegarLoop]: Interpolant automaton has 39 states [2018-07-23 13:52:04,859 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2018-07-23 13:52:04,860 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=741, Invalid=741, Unknown=0, NotChecked=0, Total=1482 [2018-07-23 13:52:04,860 INFO L87 Difference]: Start difference. First operand 40 states and 40 transitions. Second operand 39 states. [2018-07-23 13:52:04,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:04,882 INFO L93 Difference]: Finished difference Result 43 states and 43 transitions. [2018-07-23 13:52:04,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-07-23 13:52:04,882 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 39 [2018-07-23 13:52:04,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:04,882 INFO L225 Difference]: With dead ends: 43 [2018-07-23 13:52:04,883 INFO L226 Difference]: Without dead ends: 41 [2018-07-23 13:52:04,884 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 13:52:04,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-07-23 13:52:04,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-07-23 13:52:04,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-07-23 13:52:04,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 41 transitions. [2018-07-23 13:52:04,887 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 41 transitions. Word has length 39 [2018-07-23 13:52:04,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:04,888 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 41 transitions. [2018-07-23 13:52:04,888 INFO L472 AbstractCegarLoop]: Interpolant automaton has 39 states. [2018-07-23 13:52:04,888 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 41 transitions. [2018-07-23 13:52:04,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-07-23 13:52:04,888 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:04,888 INFO L357 BasicCegarLoop]: trace histogram [37, 1, 1, 1] [2018-07-23 13:52:04,889 INFO L414 AbstractCegarLoop]: === Iteration 38 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:04,889 INFO L82 PathProgramCache]: Analyzing trace with hash 50265895, now seen corresponding path program 37 times [2018-07-23 13:52:04,889 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:04,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:05,305 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 13:52:05,306 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:05,306 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [39] total 39 [2018-07-23 13:52:05,306 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:05,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:05,307 INFO L185 omatonBuilderFactory]: Interpolants [4352#(and (not (= main_x main_y)) (<= main_a_x 0)), 4353#(and (not (= main_x main_y)) (<= main_a_x 1)), 4354#(and (not (= main_x main_y)) (<= main_a_x 2)), 4355#(and (not (= main_x main_y)) (<= main_a_x 3)), 4356#(and (<= main_a_x 4) (not (= main_x main_y))), 4357#(and (<= main_a_x 5) (not (= main_x main_y))), 4358#(and (not (= main_x main_y)) (<= main_a_x 6)), 4359#(and (<= main_a_x 7) (not (= main_x main_y))), 4360#(and (not (= main_x main_y)) (<= main_a_x 8)), 4361#(and (not (= main_x main_y)) (<= main_a_x 9)), 4362#(and (<= main_a_x 10) (not (= main_x main_y))), 4363#(and (not (= main_x main_y)) (<= main_a_x 11)), 4364#(and (not (= main_x main_y)) (<= main_a_x 12)), 4365#(and (<= main_a_x 13) (not (= main_x main_y))), 4366#(and (not (= main_x main_y)) (<= main_a_x 14)), 4367#(and (<= main_a_x 15) (not (= main_x main_y))), 4368#(and (not (= main_x main_y)) (<= main_a_x 16)), 4369#(and (not (= main_x main_y)) (<= main_a_x 17)), 4370#(and (<= main_a_x 18) (not (= main_x main_y))), 4371#(and (<= main_a_x 19) (not (= main_x main_y))), 4372#(and (not (= main_x main_y)) (<= main_a_x 20)), 4373#(and (not (= main_x main_y)) (<= main_a_x 21)), 4374#(and (not (= main_x main_y)) (<= main_a_x 22)), 4375#(and (<= main_a_x 23) (not (= main_x main_y))), 4376#(and (not (= main_x main_y)) (<= main_a_x 24)), 4377#(and (<= main_a_x 25) (not (= main_x main_y))), 4378#(and (not (= main_x main_y)) (<= main_a_x 26)), 4379#(and (not (= main_x main_y)) (<= main_a_x 27)), 4380#(and (not (= main_x main_y)) (<= main_a_x 28)), 4381#(and (not (= main_x main_y)) (<= main_a_x 29)), 4382#(and (<= main_a_x 30) (not (= main_x main_y))), 4383#(and (<= main_a_x 31) (not (= main_x main_y))), 4384#(and (not (= main_x main_y)) (<= main_a_x 32)), 4385#(and (not (= main_x main_y)) (<= main_a_x 33)), 4386#(and (not (= main_x main_y)) (<= main_a_x 34)), 4387#(and (<= main_a_x 35) (not (= main_x main_y))), 4388#(and (not (= main_x main_y)) (<= main_a_x 36)), 4389#(<= main_a_x 37), 4350#true, 4351#false] [2018-07-23 13:52:05,308 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 13:52:05,308 INFO L450 AbstractCegarLoop]: Interpolant automaton has 40 states [2018-07-23 13:52:05,308 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2018-07-23 13:52:05,309 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=780, Invalid=780, Unknown=0, NotChecked=0, Total=1560 [2018-07-23 13:52:05,310 INFO L87 Difference]: Start difference. First operand 41 states and 41 transitions. Second operand 40 states. [2018-07-23 13:52:05,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:05,337 INFO L93 Difference]: Finished difference Result 44 states and 44 transitions. [2018-07-23 13:52:05,337 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2018-07-23 13:52:05,337 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 40 [2018-07-23 13:52:05,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:05,338 INFO L225 Difference]: With dead ends: 44 [2018-07-23 13:52:05,338 INFO L226 Difference]: Without dead ends: 42 [2018-07-23 13:52:05,339 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 13:52:05,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-07-23 13:52:05,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2018-07-23 13:52:05,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-07-23 13:52:05,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 42 transitions. [2018-07-23 13:52:05,345 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 42 transitions. Word has length 40 [2018-07-23 13:52:05,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:05,345 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 42 transitions. [2018-07-23 13:52:05,345 INFO L472 AbstractCegarLoop]: Interpolant automaton has 40 states. [2018-07-23 13:52:05,345 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 42 transitions. [2018-07-23 13:52:05,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-07-23 13:52:05,346 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:05,346 INFO L357 BasicCegarLoop]: trace histogram [38, 1, 1, 1] [2018-07-23 13:52:05,346 INFO L414 AbstractCegarLoop]: === Iteration 39 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:05,346 INFO L82 PathProgramCache]: Analyzing trace with hash 1558258124, now seen corresponding path program 38 times [2018-07-23 13:52:05,347 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:05,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:05,856 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 13:52:05,857 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:05,857 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [40] total 40 [2018-07-23 13:52:05,857 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:05,857 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 13:52:05,858 INFO L185 omatonBuilderFactory]: Interpolants [4562#true, 4563#false, 4564#(and (not (= main_x main_y)) (<= main_a_x 0)), 4565#(and (not (= main_x main_y)) (<= main_a_x 1)), 4566#(and (not (= main_x main_y)) (<= main_a_x 2)), 4567#(and (not (= main_x main_y)) (<= main_a_x 3)), 4568#(and (<= main_a_x 4) (not (= main_x main_y))), 4569#(and (<= main_a_x 5) (not (= main_x main_y))), 4570#(and (not (= main_x main_y)) (<= main_a_x 6)), 4571#(and (<= main_a_x 7) (not (= main_x main_y))), 4572#(and (not (= main_x main_y)) (<= main_a_x 8)), 4573#(and (not (= main_x main_y)) (<= main_a_x 9)), 4574#(and (<= main_a_x 10) (not (= main_x main_y))), 4575#(and (not (= main_x main_y)) (<= main_a_x 11)), 4576#(and (not (= main_x main_y)) (<= main_a_x 12)), 4577#(and (<= main_a_x 13) (not (= main_x main_y))), 4578#(and (not (= main_x main_y)) (<= main_a_x 14)), 4579#(and (<= main_a_x 15) (not (= main_x main_y))), 4580#(and (not (= main_x main_y)) (<= main_a_x 16)), 4581#(and (not (= main_x main_y)) (<= main_a_x 17)), 4582#(and (<= main_a_x 18) (not (= main_x main_y))), 4583#(and (<= main_a_x 19) (not (= main_x main_y))), 4584#(and (not (= main_x main_y)) (<= main_a_x 20)), 4585#(and (not (= main_x main_y)) (<= main_a_x 21)), 4586#(and (not (= main_x main_y)) (<= main_a_x 22)), 4587#(and (<= main_a_x 23) (not (= main_x main_y))), 4588#(and (not (= main_x main_y)) (<= main_a_x 24)), 4589#(and (<= main_a_x 25) (not (= main_x main_y))), 4590#(and (not (= main_x main_y)) (<= main_a_x 26)), 4591#(and (not (= main_x main_y)) (<= main_a_x 27)), 4592#(and (not (= main_x main_y)) (<= main_a_x 28)), 4593#(and (not (= main_x main_y)) (<= main_a_x 29)), 4594#(and (<= main_a_x 30) (not (= main_x main_y))), 4595#(and (<= main_a_x 31) (not (= main_x main_y))), 4596#(and (not (= main_x main_y)) (<= main_a_x 32)), 4597#(and (not (= main_x main_y)) (<= main_a_x 33)), 4598#(and (not (= main_x main_y)) (<= main_a_x 34)), 4599#(and (<= main_a_x 35) (not (= main_x main_y))), 4600#(and (not (= main_x main_y)) (<= main_a_x 36)), 4601#(and (<= main_a_x 37) (not (= main_x main_y))), 4602#(<= main_a_x 38)] [2018-07-23 13:52:05,858 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 13:52:05,858 INFO L450 AbstractCegarLoop]: Interpolant automaton has 41 states [2018-07-23 13:52:05,859 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2018-07-23 13:52:05,859 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=820, Invalid=820, Unknown=0, NotChecked=0, Total=1640 [2018-07-23 13:52:05,860 INFO L87 Difference]: Start difference. First operand 42 states and 42 transitions. Second operand 41 states. [2018-07-23 13:52:05,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:05,883 INFO L93 Difference]: Finished difference Result 45 states and 45 transitions. [2018-07-23 13:52:05,883 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-07-23 13:52:05,883 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 41 [2018-07-23 13:52:05,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:05,884 INFO L225 Difference]: With dead ends: 45 [2018-07-23 13:52:05,884 INFO L226 Difference]: Without dead ends: 43 [2018-07-23 13:52:05,885 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=820, Invalid=820, Unknown=0, NotChecked=0, Total=1640 [2018-07-23 13:52:05,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-07-23 13:52:05,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2018-07-23 13:52:05,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-07-23 13:52:05,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 43 transitions. [2018-07-23 13:52:05,889 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 43 transitions. Word has length 41 [2018-07-23 13:52:05,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:05,889 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 43 transitions. [2018-07-23 13:52:05,890 INFO L472 AbstractCegarLoop]: Interpolant automaton has 41 states. [2018-07-23 13:52:05,890 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 43 transitions. [2018-07-23 13:52:05,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-07-23 13:52:05,890 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:05,890 INFO L357 BasicCegarLoop]: trace histogram [39, 1, 1, 1] [2018-07-23 13:52:05,890 INFO L414 AbstractCegarLoop]: === Iteration 40 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:05,891 INFO L82 PathProgramCache]: Analyzing trace with hash 1061376967, now seen corresponding path program 39 times [2018-07-23 13:52:05,891 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:05,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:06,219 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 13:52:06,219 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:06,219 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [41] total 41 [2018-07-23 13:52:06,219 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:06,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:06,220 INFO L185 omatonBuilderFactory]: Interpolants [4800#(and (<= main_a_x 19) (not (= main_x main_y))), 4801#(and (not (= main_x main_y)) (<= main_a_x 20)), 4802#(and (not (= main_x main_y)) (<= main_a_x 21)), 4803#(and (not (= main_x main_y)) (<= main_a_x 22)), 4804#(and (<= main_a_x 23) (not (= main_x main_y))), 4805#(and (not (= main_x main_y)) (<= main_a_x 24)), 4806#(and (<= main_a_x 25) (not (= main_x main_y))), 4807#(and (not (= main_x main_y)) (<= main_a_x 26)), 4808#(and (not (= main_x main_y)) (<= main_a_x 27)), 4809#(and (not (= main_x main_y)) (<= main_a_x 28)), 4810#(and (not (= main_x main_y)) (<= main_a_x 29)), 4811#(and (<= main_a_x 30) (not (= main_x main_y))), 4812#(and (<= main_a_x 31) (not (= main_x main_y))), 4813#(and (not (= main_x main_y)) (<= main_a_x 32)), 4814#(and (not (= main_x main_y)) (<= main_a_x 33)), 4815#(and (not (= main_x main_y)) (<= main_a_x 34)), 4816#(and (<= main_a_x 35) (not (= main_x main_y))), 4817#(and (not (= main_x main_y)) (<= main_a_x 36)), 4818#(and (<= main_a_x 37) (not (= main_x main_y))), 4819#(and (not (= main_x main_y)) (<= main_a_x 38)), 4820#(<= main_a_x 39), 4779#true, 4780#false, 4781#(and (not (= main_x main_y)) (<= main_a_x 0)), 4782#(and (not (= main_x main_y)) (<= main_a_x 1)), 4783#(and (not (= main_x main_y)) (<= main_a_x 2)), 4784#(and (not (= main_x main_y)) (<= main_a_x 3)), 4785#(and (<= main_a_x 4) (not (= main_x main_y))), 4786#(and (<= main_a_x 5) (not (= main_x main_y))), 4787#(and (not (= main_x main_y)) (<= main_a_x 6)), 4788#(and (<= main_a_x 7) (not (= main_x main_y))), 4789#(and (not (= main_x main_y)) (<= main_a_x 8)), 4790#(and (not (= main_x main_y)) (<= main_a_x 9)), 4791#(and (<= main_a_x 10) (not (= main_x main_y))), 4792#(and (not (= main_x main_y)) (<= main_a_x 11)), 4793#(and (not (= main_x main_y)) (<= main_a_x 12)), 4794#(and (<= main_a_x 13) (not (= main_x main_y))), 4795#(and (not (= main_x main_y)) (<= main_a_x 14)), 4796#(and (<= main_a_x 15) (not (= main_x main_y))), 4797#(and (not (= main_x main_y)) (<= main_a_x 16)), 4798#(and (not (= main_x main_y)) (<= main_a_x 17)), 4799#(and (<= main_a_x 18) (not (= main_x main_y)))] [2018-07-23 13:52:06,220 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 13:52:06,221 INFO L450 AbstractCegarLoop]: Interpolant automaton has 42 states [2018-07-23 13:52:06,221 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2018-07-23 13:52:06,222 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=861, Invalid=861, Unknown=0, NotChecked=0, Total=1722 [2018-07-23 13:52:06,222 INFO L87 Difference]: Start difference. First operand 43 states and 43 transitions. Second operand 42 states. [2018-07-23 13:52:06,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:06,243 INFO L93 Difference]: Finished difference Result 46 states and 46 transitions. [2018-07-23 13:52:06,243 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2018-07-23 13:52:06,243 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 42 [2018-07-23 13:52:06,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:06,244 INFO L225 Difference]: With dead ends: 46 [2018-07-23 13:52:06,244 INFO L226 Difference]: Without dead ends: 44 [2018-07-23 13:52:06,245 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=861, Invalid=861, Unknown=0, NotChecked=0, Total=1722 [2018-07-23 13:52:06,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-07-23 13:52:06,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-07-23 13:52:06,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-07-23 13:52:06,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 44 transitions. [2018-07-23 13:52:06,248 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 44 transitions. Word has length 42 [2018-07-23 13:52:06,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:06,249 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 44 transitions. [2018-07-23 13:52:06,249 INFO L472 AbstractCegarLoop]: Interpolant automaton has 42 states. [2018-07-23 13:52:06,249 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 44 transitions. [2018-07-23 13:52:06,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-07-23 13:52:06,249 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:06,249 INFO L357 BasicCegarLoop]: trace histogram [40, 1, 1, 1] [2018-07-23 13:52:06,250 INFO L414 AbstractCegarLoop]: === Iteration 41 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:06,250 INFO L82 PathProgramCache]: Analyzing trace with hash -1457037012, now seen corresponding path program 40 times [2018-07-23 13:52:06,250 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:06,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:06,639 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 13:52:06,640 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:06,640 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [42] total 42 [2018-07-23 13:52:06,640 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:06,640 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 13:52:06,640 INFO L185 omatonBuilderFactory]: Interpolants [5001#true, 5002#false, 5003#(and (not (= main_x main_y)) (<= main_a_x 0)), 5004#(and (not (= main_x main_y)) (<= main_a_x 1)), 5005#(and (not (= main_x main_y)) (<= main_a_x 2)), 5006#(and (not (= main_x main_y)) (<= main_a_x 3)), 5007#(and (<= main_a_x 4) (not (= main_x main_y))), 5008#(and (<= main_a_x 5) (not (= main_x main_y))), 5009#(and (not (= main_x main_y)) (<= main_a_x 6)), 5010#(and (<= main_a_x 7) (not (= main_x main_y))), 5011#(and (not (= main_x main_y)) (<= main_a_x 8)), 5012#(and (not (= main_x main_y)) (<= main_a_x 9)), 5013#(and (<= main_a_x 10) (not (= main_x main_y))), 5014#(and (not (= main_x main_y)) (<= main_a_x 11)), 5015#(and (not (= main_x main_y)) (<= main_a_x 12)), 5016#(and (<= main_a_x 13) (not (= main_x main_y))), 5017#(and (not (= main_x main_y)) (<= main_a_x 14)), 5018#(and (<= main_a_x 15) (not (= main_x main_y))), 5019#(and (not (= main_x main_y)) (<= main_a_x 16)), 5020#(and (not (= main_x main_y)) (<= main_a_x 17)), 5021#(and (<= main_a_x 18) (not (= main_x main_y))), 5022#(and (<= main_a_x 19) (not (= main_x main_y))), 5023#(and (not (= main_x main_y)) (<= main_a_x 20)), 5024#(and (not (= main_x main_y)) (<= main_a_x 21)), 5025#(and (not (= main_x main_y)) (<= main_a_x 22)), 5026#(and (<= main_a_x 23) (not (= main_x main_y))), 5027#(and (not (= main_x main_y)) (<= main_a_x 24)), 5028#(and (<= main_a_x 25) (not (= main_x main_y))), 5029#(and (not (= main_x main_y)) (<= main_a_x 26)), 5030#(and (not (= main_x main_y)) (<= main_a_x 27)), 5031#(and (not (= main_x main_y)) (<= main_a_x 28)), 5032#(and (not (= main_x main_y)) (<= main_a_x 29)), 5033#(and (<= main_a_x 30) (not (= main_x main_y))), 5034#(and (<= main_a_x 31) (not (= main_x main_y))), 5035#(and (not (= main_x main_y)) (<= main_a_x 32)), 5036#(and (not (= main_x main_y)) (<= main_a_x 33)), 5037#(and (not (= main_x main_y)) (<= main_a_x 34)), 5038#(and (<= main_a_x 35) (not (= main_x main_y))), 5039#(and (not (= main_x main_y)) (<= main_a_x 36)), 5040#(and (<= main_a_x 37) (not (= main_x main_y))), 5041#(and (not (= main_x main_y)) (<= main_a_x 38)), 5042#(and (<= main_a_x 39) (not (= main_x main_y))), 5043#(<= main_a_x 40)] [2018-07-23 13:52:06,641 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 13:52:06,641 INFO L450 AbstractCegarLoop]: Interpolant automaton has 43 states [2018-07-23 13:52:06,642 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2018-07-23 13:52:06,642 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=903, Invalid=903, Unknown=0, NotChecked=0, Total=1806 [2018-07-23 13:52:06,643 INFO L87 Difference]: Start difference. First operand 44 states and 44 transitions. Second operand 43 states. [2018-07-23 13:52:06,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:06,669 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2018-07-23 13:52:06,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2018-07-23 13:52:06,669 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 43 [2018-07-23 13:52:06,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:06,670 INFO L225 Difference]: With dead ends: 47 [2018-07-23 13:52:06,670 INFO L226 Difference]: Without dead ends: 45 [2018-07-23 13:52:06,671 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=903, Invalid=903, Unknown=0, NotChecked=0, Total=1806 [2018-07-23 13:52:06,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-07-23 13:52:06,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-07-23 13:52:06,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-07-23 13:52:06,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 45 transitions. [2018-07-23 13:52:06,675 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 45 transitions. Word has length 43 [2018-07-23 13:52:06,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:06,675 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 45 transitions. [2018-07-23 13:52:06,675 INFO L472 AbstractCegarLoop]: Interpolant automaton has 43 states. [2018-07-23 13:52:06,675 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 45 transitions. [2018-07-23 13:52:06,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-07-23 13:52:06,676 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:06,676 INFO L357 BasicCegarLoop]: trace histogram [41, 1, 1, 1] [2018-07-23 13:52:06,676 INFO L414 AbstractCegarLoop]: === Iteration 42 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:06,676 INFO L82 PathProgramCache]: Analyzing trace with hash 2076508263, now seen corresponding path program 41 times [2018-07-23 13:52:06,676 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:06,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:07,092 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 13:52:07,092 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:07,092 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [43] total 43 [2018-07-23 13:52:07,093 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:07,093 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 13:52:07,093 INFO L185 omatonBuilderFactory]: Interpolants [5248#(and (<= main_a_x 18) (not (= main_x main_y))), 5249#(and (<= main_a_x 19) (not (= main_x main_y))), 5250#(and (not (= main_x main_y)) (<= main_a_x 20)), 5251#(and (not (= main_x main_y)) (<= main_a_x 21)), 5252#(and (not (= main_x main_y)) (<= main_a_x 22)), 5253#(and (<= main_a_x 23) (not (= main_x main_y))), 5254#(and (not (= main_x main_y)) (<= main_a_x 24)), 5255#(and (<= main_a_x 25) (not (= main_x main_y))), 5256#(and (not (= main_x main_y)) (<= main_a_x 26)), 5257#(and (not (= main_x main_y)) (<= main_a_x 27)), 5258#(and (not (= main_x main_y)) (<= main_a_x 28)), 5259#(and (not (= main_x main_y)) (<= main_a_x 29)), 5260#(and (<= main_a_x 30) (not (= main_x main_y))), 5261#(and (<= main_a_x 31) (not (= main_x main_y))), 5262#(and (not (= main_x main_y)) (<= main_a_x 32)), 5263#(and (not (= main_x main_y)) (<= main_a_x 33)), 5264#(and (not (= main_x main_y)) (<= main_a_x 34)), 5265#(and (<= main_a_x 35) (not (= main_x main_y))), 5266#(and (not (= main_x main_y)) (<= main_a_x 36)), 5267#(and (<= main_a_x 37) (not (= main_x main_y))), 5268#(and (not (= main_x main_y)) (<= main_a_x 38)), 5269#(and (<= main_a_x 39) (not (= main_x main_y))), 5270#(and (<= main_a_x 40) (not (= main_x main_y))), 5271#(<= main_a_x 41), 5228#true, 5229#false, 5230#(and (not (= main_x main_y)) (<= main_a_x 0)), 5231#(and (not (= main_x main_y)) (<= main_a_x 1)), 5232#(and (not (= main_x main_y)) (<= main_a_x 2)), 5233#(and (not (= main_x main_y)) (<= main_a_x 3)), 5234#(and (<= main_a_x 4) (not (= main_x main_y))), 5235#(and (<= main_a_x 5) (not (= main_x main_y))), 5236#(and (not (= main_x main_y)) (<= main_a_x 6)), 5237#(and (<= main_a_x 7) (not (= main_x main_y))), 5238#(and (not (= main_x main_y)) (<= main_a_x 8)), 5239#(and (not (= main_x main_y)) (<= main_a_x 9)), 5240#(and (<= main_a_x 10) (not (= main_x main_y))), 5241#(and (not (= main_x main_y)) (<= main_a_x 11)), 5242#(and (not (= main_x main_y)) (<= main_a_x 12)), 5243#(and (<= main_a_x 13) (not (= main_x main_y))), 5244#(and (not (= main_x main_y)) (<= main_a_x 14)), 5245#(and (<= main_a_x 15) (not (= main_x main_y))), 5246#(and (not (= main_x main_y)) (<= main_a_x 16)), 5247#(and (not (= main_x main_y)) (<= main_a_x 17))] [2018-07-23 13:52:07,094 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 13:52:07,094 INFO L450 AbstractCegarLoop]: Interpolant automaton has 44 states [2018-07-23 13:52:07,094 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2018-07-23 13:52:07,096 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=946, Invalid=946, Unknown=0, NotChecked=0, Total=1892 [2018-07-23 13:52:07,096 INFO L87 Difference]: Start difference. First operand 45 states and 45 transitions. Second operand 44 states. [2018-07-23 13:52:07,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:07,123 INFO L93 Difference]: Finished difference Result 48 states and 48 transitions. [2018-07-23 13:52:07,123 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-07-23 13:52:07,123 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 44 [2018-07-23 13:52:07,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:07,124 INFO L225 Difference]: With dead ends: 48 [2018-07-23 13:52:07,124 INFO L226 Difference]: Without dead ends: 46 [2018-07-23 13:52:07,125 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=946, Invalid=946, Unknown=0, NotChecked=0, Total=1892 [2018-07-23 13:52:07,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-07-23 13:52:07,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2018-07-23 13:52:07,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-07-23 13:52:07,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 46 transitions. [2018-07-23 13:52:07,130 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 46 transitions. Word has length 44 [2018-07-23 13:52:07,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:07,130 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 46 transitions. [2018-07-23 13:52:07,130 INFO L472 AbstractCegarLoop]: Interpolant automaton has 44 states. [2018-07-23 13:52:07,130 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 46 transitions. [2018-07-23 13:52:07,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-07-23 13:52:07,131 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:07,131 INFO L357 BasicCegarLoop]: trace histogram [42, 1, 1, 1] [2018-07-23 13:52:07,131 INFO L414 AbstractCegarLoop]: === Iteration 43 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:07,131 INFO L82 PathProgramCache]: Analyzing trace with hash -52737908, now seen corresponding path program 42 times [2018-07-23 13:52:07,132 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:07,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:07,540 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 13:52:07,541 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:07,541 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [44] total 44 [2018-07-23 13:52:07,541 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:07,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:07,542 INFO L185 omatonBuilderFactory]: Interpolants [5504#(<= main_a_x 42), 5460#true, 5461#false, 5462#(and (not (= main_x main_y)) (<= main_a_x 0)), 5463#(and (not (= main_x main_y)) (<= main_a_x 1)), 5464#(and (not (= main_x main_y)) (<= main_a_x 2)), 5465#(and (not (= main_x main_y)) (<= main_a_x 3)), 5466#(and (<= main_a_x 4) (not (= main_x main_y))), 5467#(and (<= main_a_x 5) (not (= main_x main_y))), 5468#(and (not (= main_x main_y)) (<= main_a_x 6)), 5469#(and (<= main_a_x 7) (not (= main_x main_y))), 5470#(and (not (= main_x main_y)) (<= main_a_x 8)), 5471#(and (not (= main_x main_y)) (<= main_a_x 9)), 5472#(and (<= main_a_x 10) (not (= main_x main_y))), 5473#(and (not (= main_x main_y)) (<= main_a_x 11)), 5474#(and (not (= main_x main_y)) (<= main_a_x 12)), 5475#(and (<= main_a_x 13) (not (= main_x main_y))), 5476#(and (not (= main_x main_y)) (<= main_a_x 14)), 5477#(and (<= main_a_x 15) (not (= main_x main_y))), 5478#(and (not (= main_x main_y)) (<= main_a_x 16)), 5479#(and (not (= main_x main_y)) (<= main_a_x 17)), 5480#(and (<= main_a_x 18) (not (= main_x main_y))), 5481#(and (<= main_a_x 19) (not (= main_x main_y))), 5482#(and (not (= main_x main_y)) (<= main_a_x 20)), 5483#(and (not (= main_x main_y)) (<= main_a_x 21)), 5484#(and (not (= main_x main_y)) (<= main_a_x 22)), 5485#(and (<= main_a_x 23) (not (= main_x main_y))), 5486#(and (not (= main_x main_y)) (<= main_a_x 24)), 5487#(and (<= main_a_x 25) (not (= main_x main_y))), 5488#(and (not (= main_x main_y)) (<= main_a_x 26)), 5489#(and (not (= main_x main_y)) (<= main_a_x 27)), 5490#(and (not (= main_x main_y)) (<= main_a_x 28)), 5491#(and (not (= main_x main_y)) (<= main_a_x 29)), 5492#(and (<= main_a_x 30) (not (= main_x main_y))), 5493#(and (<= main_a_x 31) (not (= main_x main_y))), 5494#(and (not (= main_x main_y)) (<= main_a_x 32)), 5495#(and (not (= main_x main_y)) (<= main_a_x 33)), 5496#(and (not (= main_x main_y)) (<= main_a_x 34)), 5497#(and (<= main_a_x 35) (not (= main_x main_y))), 5498#(and (not (= main_x main_y)) (<= main_a_x 36)), 5499#(and (<= main_a_x 37) (not (= main_x main_y))), 5500#(and (not (= main_x main_y)) (<= main_a_x 38)), 5501#(and (<= main_a_x 39) (not (= main_x main_y))), 5502#(and (<= main_a_x 40) (not (= main_x main_y))), 5503#(and (not (= main_x main_y)) (<= main_a_x 41))] [2018-07-23 13:52:07,542 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 13:52:07,542 INFO L450 AbstractCegarLoop]: Interpolant automaton has 45 states [2018-07-23 13:52:07,543 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2018-07-23 13:52:07,544 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=990, Invalid=990, Unknown=0, NotChecked=0, Total=1980 [2018-07-23 13:52:07,544 INFO L87 Difference]: Start difference. First operand 46 states and 46 transitions. Second operand 45 states. [2018-07-23 13:52:07,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:07,566 INFO L93 Difference]: Finished difference Result 49 states and 49 transitions. [2018-07-23 13:52:07,566 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2018-07-23 13:52:07,566 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 45 [2018-07-23 13:52:07,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:07,567 INFO L225 Difference]: With dead ends: 49 [2018-07-23 13:52:07,567 INFO L226 Difference]: Without dead ends: 47 [2018-07-23 13:52:07,568 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 13:52:07,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-07-23 13:52:07,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2018-07-23 13:52:07,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-07-23 13:52:07,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 47 transitions. [2018-07-23 13:52:07,573 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 47 transitions. Word has length 45 [2018-07-23 13:52:07,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:07,573 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 47 transitions. [2018-07-23 13:52:07,573 INFO L472 AbstractCegarLoop]: Interpolant automaton has 45 states. [2018-07-23 13:52:07,573 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 47 transitions. [2018-07-23 13:52:07,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-07-23 13:52:07,574 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:07,574 INFO L357 BasicCegarLoop]: trace histogram [43, 1, 1, 1] [2018-07-23 13:52:07,574 INFO L414 AbstractCegarLoop]: === Iteration 44 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:07,574 INFO L82 PathProgramCache]: Analyzing trace with hash -1634859769, now seen corresponding path program 43 times [2018-07-23 13:52:07,574 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:07,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:07,999 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 13:52:08,000 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:08,000 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [45] total 45 [2018-07-23 13:52:08,000 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:08,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:08,001 INFO L185 omatonBuilderFactory]: Interpolants [5697#true, 5698#false, 5699#(and (not (= main_x main_y)) (<= main_a_x 0)), 5700#(and (not (= main_x main_y)) (<= main_a_x 1)), 5701#(and (not (= main_x main_y)) (<= main_a_x 2)), 5702#(and (not (= main_x main_y)) (<= main_a_x 3)), 5703#(and (<= main_a_x 4) (not (= main_x main_y))), 5704#(and (<= main_a_x 5) (not (= main_x main_y))), 5705#(and (not (= main_x main_y)) (<= main_a_x 6)), 5706#(and (<= main_a_x 7) (not (= main_x main_y))), 5707#(and (not (= main_x main_y)) (<= main_a_x 8)), 5708#(and (not (= main_x main_y)) (<= main_a_x 9)), 5709#(and (<= main_a_x 10) (not (= main_x main_y))), 5710#(and (not (= main_x main_y)) (<= main_a_x 11)), 5711#(and (not (= main_x main_y)) (<= main_a_x 12)), 5712#(and (<= main_a_x 13) (not (= main_x main_y))), 5713#(and (not (= main_x main_y)) (<= main_a_x 14)), 5714#(and (<= main_a_x 15) (not (= main_x main_y))), 5715#(and (not (= main_x main_y)) (<= main_a_x 16)), 5716#(and (not (= main_x main_y)) (<= main_a_x 17)), 5717#(and (<= main_a_x 18) (not (= main_x main_y))), 5718#(and (<= main_a_x 19) (not (= main_x main_y))), 5719#(and (not (= main_x main_y)) (<= main_a_x 20)), 5720#(and (not (= main_x main_y)) (<= main_a_x 21)), 5721#(and (not (= main_x main_y)) (<= main_a_x 22)), 5722#(and (<= main_a_x 23) (not (= main_x main_y))), 5723#(and (not (= main_x main_y)) (<= main_a_x 24)), 5724#(and (<= main_a_x 25) (not (= main_x main_y))), 5725#(and (not (= main_x main_y)) (<= main_a_x 26)), 5726#(and (not (= main_x main_y)) (<= main_a_x 27)), 5727#(and (not (= main_x main_y)) (<= main_a_x 28)), 5728#(and (not (= main_x main_y)) (<= main_a_x 29)), 5729#(and (<= main_a_x 30) (not (= main_x main_y))), 5730#(and (<= main_a_x 31) (not (= main_x main_y))), 5731#(and (not (= main_x main_y)) (<= main_a_x 32)), 5732#(and (not (= main_x main_y)) (<= main_a_x 33)), 5733#(and (not (= main_x main_y)) (<= main_a_x 34)), 5734#(and (<= main_a_x 35) (not (= main_x main_y))), 5735#(and (not (= main_x main_y)) (<= main_a_x 36)), 5736#(and (<= main_a_x 37) (not (= main_x main_y))), 5737#(and (not (= main_x main_y)) (<= main_a_x 38)), 5738#(and (<= main_a_x 39) (not (= main_x main_y))), 5739#(and (<= main_a_x 40) (not (= main_x main_y))), 5740#(and (not (= main_x main_y)) (<= main_a_x 41)), 5741#(and (not (= main_x main_y)) (<= main_a_x 42)), 5742#(<= main_a_x 43)] [2018-07-23 13:52:08,001 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 13:52:08,002 INFO L450 AbstractCegarLoop]: Interpolant automaton has 46 states [2018-07-23 13:52:08,002 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2018-07-23 13:52:08,003 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1035, Invalid=1035, Unknown=0, NotChecked=0, Total=2070 [2018-07-23 13:52:08,004 INFO L87 Difference]: Start difference. First operand 47 states and 47 transitions. Second operand 46 states. [2018-07-23 13:52:08,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:08,036 INFO L93 Difference]: Finished difference Result 50 states and 50 transitions. [2018-07-23 13:52:08,036 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2018-07-23 13:52:08,036 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 46 [2018-07-23 13:52:08,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:08,037 INFO L225 Difference]: With dead ends: 50 [2018-07-23 13:52:08,037 INFO L226 Difference]: Without dead ends: 48 [2018-07-23 13:52:08,039 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 13:52:08,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-07-23 13:52:08,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2018-07-23 13:52:08,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-07-23 13:52:08,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 48 transitions. [2018-07-23 13:52:08,043 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 48 transitions. Word has length 46 [2018-07-23 13:52:08,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:08,043 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 48 transitions. [2018-07-23 13:52:08,043 INFO L472 AbstractCegarLoop]: Interpolant automaton has 46 states. [2018-07-23 13:52:08,043 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 48 transitions. [2018-07-23 13:52:08,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-07-23 13:52:08,044 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:08,044 INFO L357 BasicCegarLoop]: trace histogram [44, 1, 1, 1] [2018-07-23 13:52:08,044 INFO L414 AbstractCegarLoop]: === Iteration 45 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:08,044 INFO L82 PathProgramCache]: Analyzing trace with hash 858970092, now seen corresponding path program 44 times [2018-07-23 13:52:08,044 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:08,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:08,500 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 13:52:08,500 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:08,501 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [46] total 46 [2018-07-23 13:52:08,501 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:08,501 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 13:52:08,502 INFO L185 omatonBuilderFactory]: Interpolants [5952#(and (not (= main_x main_y)) (<= main_a_x 11)), 5953#(and (not (= main_x main_y)) (<= main_a_x 12)), 5954#(and (<= main_a_x 13) (not (= main_x main_y))), 5955#(and (not (= main_x main_y)) (<= main_a_x 14)), 5956#(and (<= main_a_x 15) (not (= main_x main_y))), 5957#(and (not (= main_x main_y)) (<= main_a_x 16)), 5958#(and (not (= main_x main_y)) (<= main_a_x 17)), 5959#(and (<= main_a_x 18) (not (= main_x main_y))), 5960#(and (<= main_a_x 19) (not (= main_x main_y))), 5961#(and (not (= main_x main_y)) (<= main_a_x 20)), 5962#(and (not (= main_x main_y)) (<= main_a_x 21)), 5963#(and (not (= main_x main_y)) (<= main_a_x 22)), 5964#(and (<= main_a_x 23) (not (= main_x main_y))), 5965#(and (not (= main_x main_y)) (<= main_a_x 24)), 5966#(and (<= main_a_x 25) (not (= main_x main_y))), 5967#(and (not (= main_x main_y)) (<= main_a_x 26)), 5968#(and (not (= main_x main_y)) (<= main_a_x 27)), 5969#(and (not (= main_x main_y)) (<= main_a_x 28)), 5970#(and (not (= main_x main_y)) (<= main_a_x 29)), 5971#(and (<= main_a_x 30) (not (= main_x main_y))), 5972#(and (<= main_a_x 31) (not (= main_x main_y))), 5973#(and (not (= main_x main_y)) (<= main_a_x 32)), 5974#(and (not (= main_x main_y)) (<= main_a_x 33)), 5975#(and (not (= main_x main_y)) (<= main_a_x 34)), 5976#(and (<= main_a_x 35) (not (= main_x main_y))), 5977#(and (not (= main_x main_y)) (<= main_a_x 36)), 5978#(and (<= main_a_x 37) (not (= main_x main_y))), 5979#(and (not (= main_x main_y)) (<= main_a_x 38)), 5980#(and (<= main_a_x 39) (not (= main_x main_y))), 5981#(and (<= main_a_x 40) (not (= main_x main_y))), 5982#(and (not (= main_x main_y)) (<= main_a_x 41)), 5983#(and (not (= main_x main_y)) (<= main_a_x 42)), 5984#(and (<= main_a_x 43) (not (= main_x main_y))), 5985#(<= main_a_x 44), 5939#true, 5940#false, 5941#(and (not (= main_x main_y)) (<= main_a_x 0)), 5942#(and (not (= main_x main_y)) (<= main_a_x 1)), 5943#(and (not (= main_x main_y)) (<= main_a_x 2)), 5944#(and (not (= main_x main_y)) (<= main_a_x 3)), 5945#(and (<= main_a_x 4) (not (= main_x main_y))), 5946#(and (<= main_a_x 5) (not (= main_x main_y))), 5947#(and (not (= main_x main_y)) (<= main_a_x 6)), 5948#(and (<= main_a_x 7) (not (= main_x main_y))), 5949#(and (not (= main_x main_y)) (<= main_a_x 8)), 5950#(and (not (= main_x main_y)) (<= main_a_x 9)), 5951#(and (<= main_a_x 10) (not (= main_x main_y)))] [2018-07-23 13:52:08,502 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 13:52:08,502 INFO L450 AbstractCegarLoop]: Interpolant automaton has 47 states [2018-07-23 13:52:08,503 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2018-07-23 13:52:08,504 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1081, Invalid=1081, Unknown=0, NotChecked=0, Total=2162 [2018-07-23 13:52:08,508 INFO L87 Difference]: Start difference. First operand 48 states and 48 transitions. Second operand 47 states. [2018-07-23 13:52:08,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:08,540 INFO L93 Difference]: Finished difference Result 51 states and 51 transitions. [2018-07-23 13:52:08,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2018-07-23 13:52:08,540 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 47 [2018-07-23 13:52:08,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:08,541 INFO L225 Difference]: With dead ends: 51 [2018-07-23 13:52:08,541 INFO L226 Difference]: Without dead ends: 49 [2018-07-23 13:52:08,542 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=1081, Invalid=1081, Unknown=0, NotChecked=0, Total=2162 [2018-07-23 13:52:08,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-07-23 13:52:08,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2018-07-23 13:52:08,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-07-23 13:52:08,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 49 transitions. [2018-07-23 13:52:08,548 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 49 transitions. Word has length 47 [2018-07-23 13:52:08,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:08,549 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 49 transitions. [2018-07-23 13:52:08,549 INFO L472 AbstractCegarLoop]: Interpolant automaton has 47 states. [2018-07-23 13:52:08,549 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 49 transitions. [2018-07-23 13:52:08,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-07-23 13:52:08,550 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:08,550 INFO L357 BasicCegarLoop]: trace histogram [45, 1, 1, 1] [2018-07-23 13:52:08,550 INFO L414 AbstractCegarLoop]: === Iteration 46 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:08,550 INFO L82 PathProgramCache]: Analyzing trace with hash 858284455, now seen corresponding path program 45 times [2018-07-23 13:52:08,550 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:08,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:09,139 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 13:52:09,139 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:09,140 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [47] total 47 [2018-07-23 13:52:09,140 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:09,140 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 13:52:09,140 INFO L185 omatonBuilderFactory]: Interpolants [6208#(and (not (= main_x main_y)) (<= main_a_x 20)), 6209#(and (not (= main_x main_y)) (<= main_a_x 21)), 6210#(and (not (= main_x main_y)) (<= main_a_x 22)), 6211#(and (<= main_a_x 23) (not (= main_x main_y))), 6212#(and (not (= main_x main_y)) (<= main_a_x 24)), 6213#(and (<= main_a_x 25) (not (= main_x main_y))), 6214#(and (not (= main_x main_y)) (<= main_a_x 26)), 6215#(and (not (= main_x main_y)) (<= main_a_x 27)), 6216#(and (not (= main_x main_y)) (<= main_a_x 28)), 6217#(and (not (= main_x main_y)) (<= main_a_x 29)), 6218#(and (<= main_a_x 30) (not (= main_x main_y))), 6219#(and (<= main_a_x 31) (not (= main_x main_y))), 6220#(and (not (= main_x main_y)) (<= main_a_x 32)), 6221#(and (not (= main_x main_y)) (<= main_a_x 33)), 6222#(and (not (= main_x main_y)) (<= main_a_x 34)), 6223#(and (<= main_a_x 35) (not (= main_x main_y))), 6224#(and (not (= main_x main_y)) (<= main_a_x 36)), 6225#(and (<= main_a_x 37) (not (= main_x main_y))), 6226#(and (not (= main_x main_y)) (<= main_a_x 38)), 6227#(and (<= main_a_x 39) (not (= main_x main_y))), 6228#(and (<= main_a_x 40) (not (= main_x main_y))), 6229#(and (not (= main_x main_y)) (<= main_a_x 41)), 6230#(and (not (= main_x main_y)) (<= main_a_x 42)), 6231#(and (<= main_a_x 43) (not (= main_x main_y))), 6232#(and (<= main_a_x 44) (not (= main_x main_y))), 6233#(<= main_a_x 45), 6186#true, 6187#false, 6188#(and (not (= main_x main_y)) (<= main_a_x 0)), 6189#(and (not (= main_x main_y)) (<= main_a_x 1)), 6190#(and (not (= main_x main_y)) (<= main_a_x 2)), 6191#(and (not (= main_x main_y)) (<= main_a_x 3)), 6192#(and (<= main_a_x 4) (not (= main_x main_y))), 6193#(and (<= main_a_x 5) (not (= main_x main_y))), 6194#(and (not (= main_x main_y)) (<= main_a_x 6)), 6195#(and (<= main_a_x 7) (not (= main_x main_y))), 6196#(and (not (= main_x main_y)) (<= main_a_x 8)), 6197#(and (not (= main_x main_y)) (<= main_a_x 9)), 6198#(and (<= main_a_x 10) (not (= main_x main_y))), 6199#(and (not (= main_x main_y)) (<= main_a_x 11)), 6200#(and (not (= main_x main_y)) (<= main_a_x 12)), 6201#(and (<= main_a_x 13) (not (= main_x main_y))), 6202#(and (not (= main_x main_y)) (<= main_a_x 14)), 6203#(and (<= main_a_x 15) (not (= main_x main_y))), 6204#(and (not (= main_x main_y)) (<= main_a_x 16)), 6205#(and (not (= main_x main_y)) (<= main_a_x 17)), 6206#(and (<= main_a_x 18) (not (= main_x main_y))), 6207#(and (<= main_a_x 19) (not (= main_x main_y)))] [2018-07-23 13:52:09,141 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 13:52:09,141 INFO L450 AbstractCegarLoop]: Interpolant automaton has 48 states [2018-07-23 13:52:09,141 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2018-07-23 13:52:09,142 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2018-07-23 13:52:09,142 INFO L87 Difference]: Start difference. First operand 49 states and 49 transitions. Second operand 48 states. [2018-07-23 13:52:09,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:09,168 INFO L93 Difference]: Finished difference Result 52 states and 52 transitions. [2018-07-23 13:52:09,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2018-07-23 13:52:09,168 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 48 [2018-07-23 13:52:09,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:09,169 INFO L225 Difference]: With dead ends: 52 [2018-07-23 13:52:09,169 INFO L226 Difference]: Without dead ends: 50 [2018-07-23 13:52:09,169 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2018-07-23 13:52:09,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-07-23 13:52:09,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-07-23 13:52:09,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-07-23 13:52:09,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 50 transitions. [2018-07-23 13:52:09,173 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 50 transitions. Word has length 48 [2018-07-23 13:52:09,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:09,174 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 50 transitions. [2018-07-23 13:52:09,174 INFO L472 AbstractCegarLoop]: Interpolant automaton has 48 states. [2018-07-23 13:52:09,174 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 50 transitions. [2018-07-23 13:52:09,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-07-23 13:52:09,174 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:09,175 INFO L357 BasicCegarLoop]: trace histogram [46, 1, 1, 1] [2018-07-23 13:52:09,175 INFO L414 AbstractCegarLoop]: === Iteration 47 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:09,175 INFO L82 PathProgramCache]: Analyzing trace with hash 837029708, now seen corresponding path program 46 times [2018-07-23 13:52:09,175 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:09,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:09,578 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 13:52:09,578 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:09,578 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [48] total 48 [2018-07-23 13:52:09,578 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:09,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:09,579 INFO L185 omatonBuilderFactory]: Interpolants [6438#true, 6439#false, 6440#(and (not (= main_x main_y)) (<= main_a_x 0)), 6441#(and (not (= main_x main_y)) (<= main_a_x 1)), 6442#(and (not (= main_x main_y)) (<= main_a_x 2)), 6443#(and (not (= main_x main_y)) (<= main_a_x 3)), 6444#(and (<= main_a_x 4) (not (= main_x main_y))), 6445#(and (<= main_a_x 5) (not (= main_x main_y))), 6446#(and (not (= main_x main_y)) (<= main_a_x 6)), 6447#(and (<= main_a_x 7) (not (= main_x main_y))), 6448#(and (not (= main_x main_y)) (<= main_a_x 8)), 6449#(and (not (= main_x main_y)) (<= main_a_x 9)), 6450#(and (<= main_a_x 10) (not (= main_x main_y))), 6451#(and (not (= main_x main_y)) (<= main_a_x 11)), 6452#(and (not (= main_x main_y)) (<= main_a_x 12)), 6453#(and (<= main_a_x 13) (not (= main_x main_y))), 6454#(and (not (= main_x main_y)) (<= main_a_x 14)), 6455#(and (<= main_a_x 15) (not (= main_x main_y))), 6456#(and (not (= main_x main_y)) (<= main_a_x 16)), 6457#(and (not (= main_x main_y)) (<= main_a_x 17)), 6458#(and (<= main_a_x 18) (not (= main_x main_y))), 6459#(and (<= main_a_x 19) (not (= main_x main_y))), 6460#(and (not (= main_x main_y)) (<= main_a_x 20)), 6461#(and (not (= main_x main_y)) (<= main_a_x 21)), 6462#(and (not (= main_x main_y)) (<= main_a_x 22)), 6463#(and (<= main_a_x 23) (not (= main_x main_y))), 6464#(and (not (= main_x main_y)) (<= main_a_x 24)), 6465#(and (<= main_a_x 25) (not (= main_x main_y))), 6466#(and (not (= main_x main_y)) (<= main_a_x 26)), 6467#(and (not (= main_x main_y)) (<= main_a_x 27)), 6468#(and (not (= main_x main_y)) (<= main_a_x 28)), 6469#(and (not (= main_x main_y)) (<= main_a_x 29)), 6470#(and (<= main_a_x 30) (not (= main_x main_y))), 6471#(and (<= main_a_x 31) (not (= main_x main_y))), 6472#(and (not (= main_x main_y)) (<= main_a_x 32)), 6473#(and (not (= main_x main_y)) (<= main_a_x 33)), 6474#(and (not (= main_x main_y)) (<= main_a_x 34)), 6475#(and (<= main_a_x 35) (not (= main_x main_y))), 6476#(and (not (= main_x main_y)) (<= main_a_x 36)), 6477#(and (<= main_a_x 37) (not (= main_x main_y))), 6478#(and (not (= main_x main_y)) (<= main_a_x 38)), 6479#(and (<= main_a_x 39) (not (= main_x main_y))), 6480#(and (<= main_a_x 40) (not (= main_x main_y))), 6481#(and (not (= main_x main_y)) (<= main_a_x 41)), 6482#(and (not (= main_x main_y)) (<= main_a_x 42)), 6483#(and (<= main_a_x 43) (not (= main_x main_y))), 6484#(and (<= main_a_x 44) (not (= main_x main_y))), 6485#(and (<= main_a_x 45) (not (= main_x main_y))), 6486#(<= main_a_x 46)] [2018-07-23 13:52:09,580 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 13:52:09,580 INFO L450 AbstractCegarLoop]: Interpolant automaton has 49 states [2018-07-23 13:52:09,581 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2018-07-23 13:52:09,581 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2018-07-23 13:52:09,581 INFO L87 Difference]: Start difference. First operand 50 states and 50 transitions. Second operand 49 states. [2018-07-23 13:52:09,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:09,609 INFO L93 Difference]: Finished difference Result 53 states and 53 transitions. [2018-07-23 13:52:09,609 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2018-07-23 13:52:09,609 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 49 [2018-07-23 13:52:09,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:09,610 INFO L225 Difference]: With dead ends: 53 [2018-07-23 13:52:09,610 INFO L226 Difference]: Without dead ends: 51 [2018-07-23 13:52:09,610 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2018-07-23 13:52:09,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-07-23 13:52:09,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-07-23 13:52:09,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-07-23 13:52:09,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 51 transitions. [2018-07-23 13:52:09,617 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 51 transitions. Word has length 49 [2018-07-23 13:52:09,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:09,617 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 51 transitions. [2018-07-23 13:52:09,617 INFO L472 AbstractCegarLoop]: Interpolant automaton has 49 states. [2018-07-23 13:52:09,617 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2018-07-23 13:52:09,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-07-23 13:52:09,618 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:09,618 INFO L357 BasicCegarLoop]: trace histogram [47, 1, 1, 1] [2018-07-23 13:52:09,618 INFO L414 AbstractCegarLoop]: === Iteration 48 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:09,618 INFO L82 PathProgramCache]: Analyzing trace with hash 178132551, now seen corresponding path program 47 times [2018-07-23 13:52:09,619 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:09,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:10,086 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 13:52:10,087 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:10,087 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [49] total 49 [2018-07-23 13:52:10,087 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:10,088 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 13:52:10,088 INFO L185 omatonBuilderFactory]: Interpolants [6695#true, 6696#false, 6697#(and (not (= main_x main_y)) (<= main_a_x 0)), 6698#(and (not (= main_x main_y)) (<= main_a_x 1)), 6699#(and (not (= main_x main_y)) (<= main_a_x 2)), 6700#(and (not (= main_x main_y)) (<= main_a_x 3)), 6701#(and (<= main_a_x 4) (not (= main_x main_y))), 6702#(and (<= main_a_x 5) (not (= main_x main_y))), 6703#(and (not (= main_x main_y)) (<= main_a_x 6)), 6704#(and (<= main_a_x 7) (not (= main_x main_y))), 6705#(and (not (= main_x main_y)) (<= main_a_x 8)), 6706#(and (not (= main_x main_y)) (<= main_a_x 9)), 6707#(and (<= main_a_x 10) (not (= main_x main_y))), 6708#(and (not (= main_x main_y)) (<= main_a_x 11)), 6709#(and (not (= main_x main_y)) (<= main_a_x 12)), 6710#(and (<= main_a_x 13) (not (= main_x main_y))), 6711#(and (not (= main_x main_y)) (<= main_a_x 14)), 6712#(and (<= main_a_x 15) (not (= main_x main_y))), 6713#(and (not (= main_x main_y)) (<= main_a_x 16)), 6714#(and (not (= main_x main_y)) (<= main_a_x 17)), 6715#(and (<= main_a_x 18) (not (= main_x main_y))), 6716#(and (<= main_a_x 19) (not (= main_x main_y))), 6717#(and (not (= main_x main_y)) (<= main_a_x 20)), 6718#(and (not (= main_x main_y)) (<= main_a_x 21)), 6719#(and (not (= main_x main_y)) (<= main_a_x 22)), 6720#(and (<= main_a_x 23) (not (= main_x main_y))), 6721#(and (not (= main_x main_y)) (<= main_a_x 24)), 6722#(and (<= main_a_x 25) (not (= main_x main_y))), 6723#(and (not (= main_x main_y)) (<= main_a_x 26)), 6724#(and (not (= main_x main_y)) (<= main_a_x 27)), 6725#(and (not (= main_x main_y)) (<= main_a_x 28)), 6726#(and (not (= main_x main_y)) (<= main_a_x 29)), 6727#(and (<= main_a_x 30) (not (= main_x main_y))), 6728#(and (<= main_a_x 31) (not (= main_x main_y))), 6729#(and (not (= main_x main_y)) (<= main_a_x 32)), 6730#(and (not (= main_x main_y)) (<= main_a_x 33)), 6731#(and (not (= main_x main_y)) (<= main_a_x 34)), 6732#(and (<= main_a_x 35) (not (= main_x main_y))), 6733#(and (not (= main_x main_y)) (<= main_a_x 36)), 6734#(and (<= main_a_x 37) (not (= main_x main_y))), 6735#(and (not (= main_x main_y)) (<= main_a_x 38)), 6736#(and (<= main_a_x 39) (not (= main_x main_y))), 6737#(and (<= main_a_x 40) (not (= main_x main_y))), 6738#(and (not (= main_x main_y)) (<= main_a_x 41)), 6739#(and (not (= main_x main_y)) (<= main_a_x 42)), 6740#(and (<= main_a_x 43) (not (= main_x main_y))), 6741#(and (<= main_a_x 44) (not (= main_x main_y))), 6742#(and (<= main_a_x 45) (not (= main_x main_y))), 6743#(and (<= main_a_x 46) (not (= main_x main_y))), 6744#(<= main_a_x 47)] [2018-07-23 13:52:10,088 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 13:52:10,089 INFO L450 AbstractCegarLoop]: Interpolant automaton has 50 states [2018-07-23 13:52:10,089 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2018-07-23 13:52:10,090 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1225, Invalid=1225, Unknown=0, NotChecked=0, Total=2450 [2018-07-23 13:52:10,090 INFO L87 Difference]: Start difference. First operand 51 states and 51 transitions. Second operand 50 states. [2018-07-23 13:52:10,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:10,116 INFO L93 Difference]: Finished difference Result 54 states and 54 transitions. [2018-07-23 13:52:10,116 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2018-07-23 13:52:10,116 INFO L78 Accepts]: Start accepts. Automaton has 50 states. Word has length 50 [2018-07-23 13:52:10,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:10,117 INFO L225 Difference]: With dead ends: 54 [2018-07-23 13:52:10,117 INFO L226 Difference]: Without dead ends: 52 [2018-07-23 13:52:10,118 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=1225, Invalid=1225, Unknown=0, NotChecked=0, Total=2450 [2018-07-23 13:52:10,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-07-23 13:52:10,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2018-07-23 13:52:10,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-07-23 13:52:10,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 52 transitions. [2018-07-23 13:52:10,125 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 52 transitions. Word has length 50 [2018-07-23 13:52:10,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:10,125 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 52 transitions. [2018-07-23 13:52:10,125 INFO L472 AbstractCegarLoop]: Interpolant automaton has 50 states. [2018-07-23 13:52:10,126 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 52 transitions. [2018-07-23 13:52:10,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-07-23 13:52:10,126 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:10,126 INFO L357 BasicCegarLoop]: trace histogram [48, 1, 1, 1] [2018-07-23 13:52:10,128 INFO L414 AbstractCegarLoop]: === Iteration 49 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:10,128 INFO L82 PathProgramCache]: Analyzing trace with hash 1227157164, now seen corresponding path program 48 times [2018-07-23 13:52:10,128 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:10,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:10,579 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 13:52:10,580 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:10,580 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [50] total 50 [2018-07-23 13:52:10,580 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:10,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:10,581 INFO L185 omatonBuilderFactory]: Interpolants [6957#true, 6958#false, 6959#(and (not (= main_x main_y)) (<= main_a_x 0)), 6960#(and (not (= main_x main_y)) (<= main_a_x 1)), 6961#(and (not (= main_x main_y)) (<= main_a_x 2)), 6962#(and (not (= main_x main_y)) (<= main_a_x 3)), 6963#(and (<= main_a_x 4) (not (= main_x main_y))), 6964#(and (<= main_a_x 5) (not (= main_x main_y))), 6965#(and (not (= main_x main_y)) (<= main_a_x 6)), 6966#(and (<= main_a_x 7) (not (= main_x main_y))), 6967#(and (not (= main_x main_y)) (<= main_a_x 8)), 6968#(and (not (= main_x main_y)) (<= main_a_x 9)), 6969#(and (<= main_a_x 10) (not (= main_x main_y))), 6970#(and (not (= main_x main_y)) (<= main_a_x 11)), 6971#(and (not (= main_x main_y)) (<= main_a_x 12)), 6972#(and (<= main_a_x 13) (not (= main_x main_y))), 6973#(and (not (= main_x main_y)) (<= main_a_x 14)), 6974#(and (<= main_a_x 15) (not (= main_x main_y))), 6975#(and (not (= main_x main_y)) (<= main_a_x 16)), 6976#(and (not (= main_x main_y)) (<= main_a_x 17)), 6977#(and (<= main_a_x 18) (not (= main_x main_y))), 6978#(and (<= main_a_x 19) (not (= main_x main_y))), 6979#(and (not (= main_x main_y)) (<= main_a_x 20)), 6980#(and (not (= main_x main_y)) (<= main_a_x 21)), 6981#(and (not (= main_x main_y)) (<= main_a_x 22)), 6982#(and (<= main_a_x 23) (not (= main_x main_y))), 6983#(and (not (= main_x main_y)) (<= main_a_x 24)), 6984#(and (<= main_a_x 25) (not (= main_x main_y))), 6985#(and (not (= main_x main_y)) (<= main_a_x 26)), 6986#(and (not (= main_x main_y)) (<= main_a_x 27)), 6987#(and (not (= main_x main_y)) (<= main_a_x 28)), 6988#(and (not (= main_x main_y)) (<= main_a_x 29)), 6989#(and (<= main_a_x 30) (not (= main_x main_y))), 6990#(and (<= main_a_x 31) (not (= main_x main_y))), 6991#(and (not (= main_x main_y)) (<= main_a_x 32)), 6992#(and (not (= main_x main_y)) (<= main_a_x 33)), 6993#(and (not (= main_x main_y)) (<= main_a_x 34)), 6994#(and (<= main_a_x 35) (not (= main_x main_y))), 6995#(and (not (= main_x main_y)) (<= main_a_x 36)), 6996#(and (<= main_a_x 37) (not (= main_x main_y))), 6997#(and (not (= main_x main_y)) (<= main_a_x 38)), 6998#(and (<= main_a_x 39) (not (= main_x main_y))), 6999#(and (<= main_a_x 40) (not (= main_x main_y))), 7000#(and (not (= main_x main_y)) (<= main_a_x 41)), 7001#(and (not (= main_x main_y)) (<= main_a_x 42)), 7002#(and (<= main_a_x 43) (not (= main_x main_y))), 7003#(and (<= main_a_x 44) (not (= main_x main_y))), 7004#(and (<= main_a_x 45) (not (= main_x main_y))), 7005#(and (<= main_a_x 46) (not (= main_x main_y))), 7006#(and (<= main_a_x 47) (not (= main_x main_y))), 7007#(<= main_a_x 48)] [2018-07-23 13:52:10,581 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 13:52:10,581 INFO L450 AbstractCegarLoop]: Interpolant automaton has 51 states [2018-07-23 13:52:10,582 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2018-07-23 13:52:10,582 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1275, Invalid=1275, Unknown=0, NotChecked=0, Total=2550 [2018-07-23 13:52:10,582 INFO L87 Difference]: Start difference. First operand 52 states and 52 transitions. Second operand 51 states. [2018-07-23 13:52:10,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:10,614 INFO L93 Difference]: Finished difference Result 55 states and 55 transitions. [2018-07-23 13:52:10,614 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2018-07-23 13:52:10,615 INFO L78 Accepts]: Start accepts. Automaton has 51 states. Word has length 51 [2018-07-23 13:52:10,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:10,615 INFO L225 Difference]: With dead ends: 55 [2018-07-23 13:52:10,615 INFO L226 Difference]: Without dead ends: 53 [2018-07-23 13:52:10,616 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=1275, Invalid=1275, Unknown=0, NotChecked=0, Total=2550 [2018-07-23 13:52:10,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-07-23 13:52:10,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2018-07-23 13:52:10,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-07-23 13:52:10,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 53 transitions. [2018-07-23 13:52:10,622 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 53 transitions. Word has length 51 [2018-07-23 13:52:10,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:10,622 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 53 transitions. [2018-07-23 13:52:10,622 INFO L472 AbstractCegarLoop]: Interpolant automaton has 51 states. [2018-07-23 13:52:10,623 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 53 transitions. [2018-07-23 13:52:10,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-07-23 13:52:10,623 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:10,623 INFO L357 BasicCegarLoop]: trace histogram [49, 1, 1, 1] [2018-07-23 13:52:10,623 INFO L414 AbstractCegarLoop]: === Iteration 50 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:10,624 INFO L82 PathProgramCache]: Analyzing trace with hash -612818201, now seen corresponding path program 49 times [2018-07-23 13:52:10,624 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:10,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:11,089 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 13:52:11,090 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:11,090 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [51] total 51 [2018-07-23 13:52:11,090 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:11,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:11,091 INFO L185 omatonBuilderFactory]: Interpolants [7224#true, 7225#false, 7226#(and (not (= main_x main_y)) (<= main_a_x 0)), 7227#(and (not (= main_x main_y)) (<= main_a_x 1)), 7228#(and (not (= main_x main_y)) (<= main_a_x 2)), 7229#(and (not (= main_x main_y)) (<= main_a_x 3)), 7230#(and (<= main_a_x 4) (not (= main_x main_y))), 7231#(and (<= main_a_x 5) (not (= main_x main_y))), 7232#(and (not (= main_x main_y)) (<= main_a_x 6)), 7233#(and (<= main_a_x 7) (not (= main_x main_y))), 7234#(and (not (= main_x main_y)) (<= main_a_x 8)), 7235#(and (not (= main_x main_y)) (<= main_a_x 9)), 7236#(and (<= main_a_x 10) (not (= main_x main_y))), 7237#(and (not (= main_x main_y)) (<= main_a_x 11)), 7238#(and (not (= main_x main_y)) (<= main_a_x 12)), 7239#(and (<= main_a_x 13) (not (= main_x main_y))), 7240#(and (not (= main_x main_y)) (<= main_a_x 14)), 7241#(and (<= main_a_x 15) (not (= main_x main_y))), 7242#(and (not (= main_x main_y)) (<= main_a_x 16)), 7243#(and (not (= main_x main_y)) (<= main_a_x 17)), 7244#(and (<= main_a_x 18) (not (= main_x main_y))), 7245#(and (<= main_a_x 19) (not (= main_x main_y))), 7246#(and (not (= main_x main_y)) (<= main_a_x 20)), 7247#(and (not (= main_x main_y)) (<= main_a_x 21)), 7248#(and (not (= main_x main_y)) (<= main_a_x 22)), 7249#(and (<= main_a_x 23) (not (= main_x main_y))), 7250#(and (not (= main_x main_y)) (<= main_a_x 24)), 7251#(and (<= main_a_x 25) (not (= main_x main_y))), 7252#(and (not (= main_x main_y)) (<= main_a_x 26)), 7253#(and (not (= main_x main_y)) (<= main_a_x 27)), 7254#(and (not (= main_x main_y)) (<= main_a_x 28)), 7255#(and (not (= main_x main_y)) (<= main_a_x 29)), 7256#(and (<= main_a_x 30) (not (= main_x main_y))), 7257#(and (<= main_a_x 31) (not (= main_x main_y))), 7258#(and (not (= main_x main_y)) (<= main_a_x 32)), 7259#(and (not (= main_x main_y)) (<= main_a_x 33)), 7260#(and (not (= main_x main_y)) (<= main_a_x 34)), 7261#(and (<= main_a_x 35) (not (= main_x main_y))), 7262#(and (not (= main_x main_y)) (<= main_a_x 36)), 7263#(and (<= main_a_x 37) (not (= main_x main_y))), 7264#(and (not (= main_x main_y)) (<= main_a_x 38)), 7265#(and (<= main_a_x 39) (not (= main_x main_y))), 7266#(and (<= main_a_x 40) (not (= main_x main_y))), 7267#(and (not (= main_x main_y)) (<= main_a_x 41)), 7268#(and (not (= main_x main_y)) (<= main_a_x 42)), 7269#(and (<= main_a_x 43) (not (= main_x main_y))), 7270#(and (<= main_a_x 44) (not (= main_x main_y))), 7271#(and (<= main_a_x 45) (not (= main_x main_y))), 7272#(and (<= main_a_x 46) (not (= main_x main_y))), 7273#(and (<= main_a_x 47) (not (= main_x main_y))), 7274#(and (<= main_a_x 48) (not (= main_x main_y))), 7275#(<= main_a_x 49)] [2018-07-23 13:52:11,091 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 13:52:11,092 INFO L450 AbstractCegarLoop]: Interpolant automaton has 52 states [2018-07-23 13:52:11,092 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2018-07-23 13:52:11,092 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1326, Invalid=1326, Unknown=0, NotChecked=0, Total=2652 [2018-07-23 13:52:11,093 INFO L87 Difference]: Start difference. First operand 53 states and 53 transitions. Second operand 52 states. [2018-07-23 13:52:11,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:11,125 INFO L93 Difference]: Finished difference Result 56 states and 56 transitions. [2018-07-23 13:52:11,126 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2018-07-23 13:52:11,126 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 52 [2018-07-23 13:52:11,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:11,126 INFO L225 Difference]: With dead ends: 56 [2018-07-23 13:52:11,126 INFO L226 Difference]: Without dead ends: 54 [2018-07-23 13:52:11,127 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=1326, Invalid=1326, Unknown=0, NotChecked=0, Total=2652 [2018-07-23 13:52:11,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-07-23 13:52:11,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2018-07-23 13:52:11,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-07-23 13:52:11,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 54 transitions. [2018-07-23 13:52:11,131 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 54 transitions. Word has length 52 [2018-07-23 13:52:11,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:11,132 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 54 transitions. [2018-07-23 13:52:11,132 INFO L472 AbstractCegarLoop]: Interpolant automaton has 52 states. [2018-07-23 13:52:11,132 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 54 transitions. [2018-07-23 13:52:11,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-07-23 13:52:11,132 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:11,132 INFO L357 BasicCegarLoop]: trace histogram [50, 1, 1, 1] [2018-07-23 13:52:11,133 INFO L414 AbstractCegarLoop]: === Iteration 51 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:11,133 INFO L82 PathProgramCache]: Analyzing trace with hash -1817479668, now seen corresponding path program 50 times [2018-07-23 13:52:11,133 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:11,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:11,621 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 13:52:11,621 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:11,621 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [52] total 52 [2018-07-23 13:52:11,622 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:11,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:11,622 INFO L185 omatonBuilderFactory]: Interpolants [7496#true, 7497#false, 7498#(and (not (= main_x main_y)) (<= main_a_x 0)), 7499#(and (not (= main_x main_y)) (<= main_a_x 1)), 7500#(and (not (= main_x main_y)) (<= main_a_x 2)), 7501#(and (not (= main_x main_y)) (<= main_a_x 3)), 7502#(and (<= main_a_x 4) (not (= main_x main_y))), 7503#(and (<= main_a_x 5) (not (= main_x main_y))), 7504#(and (not (= main_x main_y)) (<= main_a_x 6)), 7505#(and (<= main_a_x 7) (not (= main_x main_y))), 7506#(and (not (= main_x main_y)) (<= main_a_x 8)), 7507#(and (not (= main_x main_y)) (<= main_a_x 9)), 7508#(and (<= main_a_x 10) (not (= main_x main_y))), 7509#(and (not (= main_x main_y)) (<= main_a_x 11)), 7510#(and (not (= main_x main_y)) (<= main_a_x 12)), 7511#(and (<= main_a_x 13) (not (= main_x main_y))), 7512#(and (not (= main_x main_y)) (<= main_a_x 14)), 7513#(and (<= main_a_x 15) (not (= main_x main_y))), 7514#(and (not (= main_x main_y)) (<= main_a_x 16)), 7515#(and (not (= main_x main_y)) (<= main_a_x 17)), 7516#(and (<= main_a_x 18) (not (= main_x main_y))), 7517#(and (<= main_a_x 19) (not (= main_x main_y))), 7518#(and (not (= main_x main_y)) (<= main_a_x 20)), 7519#(and (not (= main_x main_y)) (<= main_a_x 21)), 7520#(and (not (= main_x main_y)) (<= main_a_x 22)), 7521#(and (<= main_a_x 23) (not (= main_x main_y))), 7522#(and (not (= main_x main_y)) (<= main_a_x 24)), 7523#(and (<= main_a_x 25) (not (= main_x main_y))), 7524#(and (not (= main_x main_y)) (<= main_a_x 26)), 7525#(and (not (= main_x main_y)) (<= main_a_x 27)), 7526#(and (not (= main_x main_y)) (<= main_a_x 28)), 7527#(and (not (= main_x main_y)) (<= main_a_x 29)), 7528#(and (<= main_a_x 30) (not (= main_x main_y))), 7529#(and (<= main_a_x 31) (not (= main_x main_y))), 7530#(and (not (= main_x main_y)) (<= main_a_x 32)), 7531#(and (not (= main_x main_y)) (<= main_a_x 33)), 7532#(and (not (= main_x main_y)) (<= main_a_x 34)), 7533#(and (<= main_a_x 35) (not (= main_x main_y))), 7534#(and (not (= main_x main_y)) (<= main_a_x 36)), 7535#(and (<= main_a_x 37) (not (= main_x main_y))), 7536#(and (not (= main_x main_y)) (<= main_a_x 38)), 7537#(and (<= main_a_x 39) (not (= main_x main_y))), 7538#(and (<= main_a_x 40) (not (= main_x main_y))), 7539#(and (not (= main_x main_y)) (<= main_a_x 41)), 7540#(and (not (= main_x main_y)) (<= main_a_x 42)), 7541#(and (<= main_a_x 43) (not (= main_x main_y))), 7542#(and (<= main_a_x 44) (not (= main_x main_y))), 7543#(and (<= main_a_x 45) (not (= main_x main_y))), 7544#(and (<= main_a_x 46) (not (= main_x main_y))), 7545#(and (<= main_a_x 47) (not (= main_x main_y))), 7546#(and (<= main_a_x 48) (not (= main_x main_y))), 7547#(and (not (= main_x main_y)) (<= main_a_x 49)), 7548#(<= main_a_x 50)] [2018-07-23 13:52:11,623 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 13:52:11,623 INFO L450 AbstractCegarLoop]: Interpolant automaton has 53 states [2018-07-23 13:52:11,623 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2018-07-23 13:52:11,624 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2018-07-23 13:52:11,624 INFO L87 Difference]: Start difference. First operand 54 states and 54 transitions. Second operand 53 states. [2018-07-23 13:52:11,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:11,658 INFO L93 Difference]: Finished difference Result 57 states and 57 transitions. [2018-07-23 13:52:11,658 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2018-07-23 13:52:11,658 INFO L78 Accepts]: Start accepts. Automaton has 53 states. Word has length 53 [2018-07-23 13:52:11,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:11,659 INFO L225 Difference]: With dead ends: 57 [2018-07-23 13:52:11,659 INFO L226 Difference]: Without dead ends: 55 [2018-07-23 13:52:11,660 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 13:52:11,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-07-23 13:52:11,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2018-07-23 13:52:11,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-07-23 13:52:11,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 55 transitions. [2018-07-23 13:52:11,664 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 55 transitions. Word has length 53 [2018-07-23 13:52:11,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:11,664 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 55 transitions. [2018-07-23 13:52:11,665 INFO L472 AbstractCegarLoop]: Interpolant automaton has 53 states. [2018-07-23 13:52:11,665 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 55 transitions. [2018-07-23 13:52:11,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-07-23 13:52:11,665 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:11,665 INFO L357 BasicCegarLoop]: trace histogram [51, 1, 1, 1] [2018-07-23 13:52:11,665 INFO L414 AbstractCegarLoop]: === Iteration 52 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:11,666 INFO L82 PathProgramCache]: Analyzing trace with hash -507279481, now seen corresponding path program 51 times [2018-07-23 13:52:11,666 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:11,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:12,157 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 13:52:12,158 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:12,158 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [53] total 53 [2018-07-23 13:52:12,158 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:12,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:12,159 INFO L185 omatonBuilderFactory]: Interpolants [7808#(and (not (= main_x main_y)) (<= main_a_x 33)), 7809#(and (not (= main_x main_y)) (<= main_a_x 34)), 7810#(and (<= main_a_x 35) (not (= main_x main_y))), 7811#(and (not (= main_x main_y)) (<= main_a_x 36)), 7812#(and (<= main_a_x 37) (not (= main_x main_y))), 7813#(and (not (= main_x main_y)) (<= main_a_x 38)), 7814#(and (<= main_a_x 39) (not (= main_x main_y))), 7815#(and (<= main_a_x 40) (not (= main_x main_y))), 7816#(and (not (= main_x main_y)) (<= main_a_x 41)), 7817#(and (not (= main_x main_y)) (<= main_a_x 42)), 7818#(and (<= main_a_x 43) (not (= main_x main_y))), 7819#(and (<= main_a_x 44) (not (= main_x main_y))), 7820#(and (<= main_a_x 45) (not (= main_x main_y))), 7821#(and (<= main_a_x 46) (not (= main_x main_y))), 7822#(and (<= main_a_x 47) (not (= main_x main_y))), 7823#(and (<= main_a_x 48) (not (= main_x main_y))), 7824#(and (not (= main_x main_y)) (<= main_a_x 49)), 7825#(and (not (= main_x main_y)) (<= main_a_x 50)), 7826#(<= main_a_x 51), 7773#true, 7774#false, 7775#(and (not (= main_x main_y)) (<= main_a_x 0)), 7776#(and (not (= main_x main_y)) (<= main_a_x 1)), 7777#(and (not (= main_x main_y)) (<= main_a_x 2)), 7778#(and (not (= main_x main_y)) (<= main_a_x 3)), 7779#(and (<= main_a_x 4) (not (= main_x main_y))), 7780#(and (<= main_a_x 5) (not (= main_x main_y))), 7781#(and (not (= main_x main_y)) (<= main_a_x 6)), 7782#(and (<= main_a_x 7) (not (= main_x main_y))), 7783#(and (not (= main_x main_y)) (<= main_a_x 8)), 7784#(and (not (= main_x main_y)) (<= main_a_x 9)), 7785#(and (<= main_a_x 10) (not (= main_x main_y))), 7786#(and (not (= main_x main_y)) (<= main_a_x 11)), 7787#(and (not (= main_x main_y)) (<= main_a_x 12)), 7788#(and (<= main_a_x 13) (not (= main_x main_y))), 7789#(and (not (= main_x main_y)) (<= main_a_x 14)), 7790#(and (<= main_a_x 15) (not (= main_x main_y))), 7791#(and (not (= main_x main_y)) (<= main_a_x 16)), 7792#(and (not (= main_x main_y)) (<= main_a_x 17)), 7793#(and (<= main_a_x 18) (not (= main_x main_y))), 7794#(and (<= main_a_x 19) (not (= main_x main_y))), 7795#(and (not (= main_x main_y)) (<= main_a_x 20)), 7796#(and (not (= main_x main_y)) (<= main_a_x 21)), 7797#(and (not (= main_x main_y)) (<= main_a_x 22)), 7798#(and (<= main_a_x 23) (not (= main_x main_y))), 7799#(and (not (= main_x main_y)) (<= main_a_x 24)), 7800#(and (<= main_a_x 25) (not (= main_x main_y))), 7801#(and (not (= main_x main_y)) (<= main_a_x 26)), 7802#(and (not (= main_x main_y)) (<= main_a_x 27)), 7803#(and (not (= main_x main_y)) (<= main_a_x 28)), 7804#(and (not (= main_x main_y)) (<= main_a_x 29)), 7805#(and (<= main_a_x 30) (not (= main_x main_y))), 7806#(and (<= main_a_x 31) (not (= main_x main_y))), 7807#(and (not (= main_x main_y)) (<= main_a_x 32))] [2018-07-23 13:52:12,159 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 13:52:12,159 INFO L450 AbstractCegarLoop]: Interpolant automaton has 54 states [2018-07-23 13:52:12,160 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2018-07-23 13:52:12,160 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1431, Invalid=1431, Unknown=0, NotChecked=0, Total=2862 [2018-07-23 13:52:12,161 INFO L87 Difference]: Start difference. First operand 55 states and 55 transitions. Second operand 54 states. [2018-07-23 13:52:12,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:12,187 INFO L93 Difference]: Finished difference Result 58 states and 58 transitions. [2018-07-23 13:52:12,187 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2018-07-23 13:52:12,188 INFO L78 Accepts]: Start accepts. Automaton has 54 states. Word has length 54 [2018-07-23 13:52:12,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:12,188 INFO L225 Difference]: With dead ends: 58 [2018-07-23 13:52:12,188 INFO L226 Difference]: Without dead ends: 56 [2018-07-23 13:52:12,189 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=1431, Invalid=1431, Unknown=0, NotChecked=0, Total=2862 [2018-07-23 13:52:12,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-07-23 13:52:12,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2018-07-23 13:52:12,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-07-23 13:52:12,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 56 transitions. [2018-07-23 13:52:12,193 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 56 transitions. Word has length 54 [2018-07-23 13:52:12,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:12,193 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 56 transitions. [2018-07-23 13:52:12,193 INFO L472 AbstractCegarLoop]: Interpolant automaton has 54 states. [2018-07-23 13:52:12,193 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 56 transitions. [2018-07-23 13:52:12,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-07-23 13:52:12,194 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:12,194 INFO L357 BasicCegarLoop]: trace histogram [52, 1, 1, 1] [2018-07-23 13:52:12,194 INFO L414 AbstractCegarLoop]: === Iteration 53 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:12,194 INFO L82 PathProgramCache]: Analyzing trace with hash 1454220652, now seen corresponding path program 52 times [2018-07-23 13:52:12,195 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:12,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:12,632 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 13:52:12,632 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:12,632 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [54] total 54 [2018-07-23 13:52:12,633 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:12,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:12,633 INFO L185 omatonBuilderFactory]: Interpolants [8064#(and (<= main_a_x 7) (not (= main_x main_y))), 8065#(and (not (= main_x main_y)) (<= main_a_x 8)), 8066#(and (not (= main_x main_y)) (<= main_a_x 9)), 8067#(and (<= main_a_x 10) (not (= main_x main_y))), 8068#(and (not (= main_x main_y)) (<= main_a_x 11)), 8069#(and (not (= main_x main_y)) (<= main_a_x 12)), 8070#(and (<= main_a_x 13) (not (= main_x main_y))), 8071#(and (not (= main_x main_y)) (<= main_a_x 14)), 8072#(and (<= main_a_x 15) (not (= main_x main_y))), 8073#(and (not (= main_x main_y)) (<= main_a_x 16)), 8074#(and (not (= main_x main_y)) (<= main_a_x 17)), 8075#(and (<= main_a_x 18) (not (= main_x main_y))), 8076#(and (<= main_a_x 19) (not (= main_x main_y))), 8077#(and (not (= main_x main_y)) (<= main_a_x 20)), 8078#(and (not (= main_x main_y)) (<= main_a_x 21)), 8079#(and (not (= main_x main_y)) (<= main_a_x 22)), 8080#(and (<= main_a_x 23) (not (= main_x main_y))), 8081#(and (not (= main_x main_y)) (<= main_a_x 24)), 8082#(and (<= main_a_x 25) (not (= main_x main_y))), 8083#(and (not (= main_x main_y)) (<= main_a_x 26)), 8084#(and (not (= main_x main_y)) (<= main_a_x 27)), 8085#(and (not (= main_x main_y)) (<= main_a_x 28)), 8086#(and (not (= main_x main_y)) (<= main_a_x 29)), 8087#(and (<= main_a_x 30) (not (= main_x main_y))), 8088#(and (<= main_a_x 31) (not (= main_x main_y))), 8089#(and (not (= main_x main_y)) (<= main_a_x 32)), 8090#(and (not (= main_x main_y)) (<= main_a_x 33)), 8091#(and (not (= main_x main_y)) (<= main_a_x 34)), 8092#(and (<= main_a_x 35) (not (= main_x main_y))), 8093#(and (not (= main_x main_y)) (<= main_a_x 36)), 8094#(and (<= main_a_x 37) (not (= main_x main_y))), 8095#(and (not (= main_x main_y)) (<= main_a_x 38)), 8096#(and (<= main_a_x 39) (not (= main_x main_y))), 8097#(and (<= main_a_x 40) (not (= main_x main_y))), 8098#(and (not (= main_x main_y)) (<= main_a_x 41)), 8099#(and (not (= main_x main_y)) (<= main_a_x 42)), 8100#(and (<= main_a_x 43) (not (= main_x main_y))), 8101#(and (<= main_a_x 44) (not (= main_x main_y))), 8102#(and (<= main_a_x 45) (not (= main_x main_y))), 8103#(and (<= main_a_x 46) (not (= main_x main_y))), 8104#(and (<= main_a_x 47) (not (= main_x main_y))), 8105#(and (<= main_a_x 48) (not (= main_x main_y))), 8106#(and (not (= main_x main_y)) (<= main_a_x 49)), 8107#(and (not (= main_x main_y)) (<= main_a_x 50)), 8108#(and (<= main_a_x 51) (not (= main_x main_y))), 8109#(<= main_a_x 52), 8055#true, 8056#false, 8057#(and (not (= main_x main_y)) (<= main_a_x 0)), 8058#(and (not (= main_x main_y)) (<= main_a_x 1)), 8059#(and (not (= main_x main_y)) (<= main_a_x 2)), 8060#(and (not (= main_x main_y)) (<= main_a_x 3)), 8061#(and (<= main_a_x 4) (not (= main_x main_y))), 8062#(and (<= main_a_x 5) (not (= main_x main_y))), 8063#(and (not (= main_x main_y)) (<= main_a_x 6))] [2018-07-23 13:52:12,634 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 13:52:12,634 INFO L450 AbstractCegarLoop]: Interpolant automaton has 55 states [2018-07-23 13:52:12,635 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2018-07-23 13:52:12,635 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1485, Invalid=1485, Unknown=0, NotChecked=0, Total=2970 [2018-07-23 13:52:12,635 INFO L87 Difference]: Start difference. First operand 56 states and 56 transitions. Second operand 55 states. [2018-07-23 13:52:12,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:12,668 INFO L93 Difference]: Finished difference Result 59 states and 59 transitions. [2018-07-23 13:52:12,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2018-07-23 13:52:12,669 INFO L78 Accepts]: Start accepts. Automaton has 55 states. Word has length 55 [2018-07-23 13:52:12,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:12,669 INFO L225 Difference]: With dead ends: 59 [2018-07-23 13:52:12,669 INFO L226 Difference]: Without dead ends: 57 [2018-07-23 13:52:12,670 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=1485, Invalid=1485, Unknown=0, NotChecked=0, Total=2970 [2018-07-23 13:52:12,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-07-23 13:52:12,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2018-07-23 13:52:12,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-07-23 13:52:12,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 57 transitions. [2018-07-23 13:52:12,674 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 57 transitions. Word has length 55 [2018-07-23 13:52:12,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:12,674 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 57 transitions. [2018-07-23 13:52:12,674 INFO L472 AbstractCegarLoop]: Interpolant automaton has 55 states. [2018-07-23 13:52:12,674 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 57 transitions. [2018-07-23 13:52:12,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-07-23 13:52:12,675 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:12,675 INFO L357 BasicCegarLoop]: trace histogram [53, 1, 1, 1] [2018-07-23 13:52:12,675 INFO L414 AbstractCegarLoop]: === Iteration 54 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:12,675 INFO L82 PathProgramCache]: Analyzing trace with hash 2131182631, now seen corresponding path program 53 times [2018-07-23 13:52:12,675 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:12,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:13,159 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 13:52:13,159 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:13,159 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [55] total 55 [2018-07-23 13:52:13,159 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:13,160 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 13:52:13,160 INFO L185 omatonBuilderFactory]: Interpolants [8342#true, 8343#false, 8344#(and (not (= main_x main_y)) (<= main_a_x 0)), 8345#(and (not (= main_x main_y)) (<= main_a_x 1)), 8346#(and (not (= main_x main_y)) (<= main_a_x 2)), 8347#(and (not (= main_x main_y)) (<= main_a_x 3)), 8348#(and (<= main_a_x 4) (not (= main_x main_y))), 8349#(and (<= main_a_x 5) (not (= main_x main_y))), 8350#(and (not (= main_x main_y)) (<= main_a_x 6)), 8351#(and (<= main_a_x 7) (not (= main_x main_y))), 8352#(and (not (= main_x main_y)) (<= main_a_x 8)), 8353#(and (not (= main_x main_y)) (<= main_a_x 9)), 8354#(and (<= main_a_x 10) (not (= main_x main_y))), 8355#(and (not (= main_x main_y)) (<= main_a_x 11)), 8356#(and (not (= main_x main_y)) (<= main_a_x 12)), 8357#(and (<= main_a_x 13) (not (= main_x main_y))), 8358#(and (not (= main_x main_y)) (<= main_a_x 14)), 8359#(and (<= main_a_x 15) (not (= main_x main_y))), 8360#(and (not (= main_x main_y)) (<= main_a_x 16)), 8361#(and (not (= main_x main_y)) (<= main_a_x 17)), 8362#(and (<= main_a_x 18) (not (= main_x main_y))), 8363#(and (<= main_a_x 19) (not (= main_x main_y))), 8364#(and (not (= main_x main_y)) (<= main_a_x 20)), 8365#(and (not (= main_x main_y)) (<= main_a_x 21)), 8366#(and (not (= main_x main_y)) (<= main_a_x 22)), 8367#(and (<= main_a_x 23) (not (= main_x main_y))), 8368#(and (not (= main_x main_y)) (<= main_a_x 24)), 8369#(and (<= main_a_x 25) (not (= main_x main_y))), 8370#(and (not (= main_x main_y)) (<= main_a_x 26)), 8371#(and (not (= main_x main_y)) (<= main_a_x 27)), 8372#(and (not (= main_x main_y)) (<= main_a_x 28)), 8373#(and (not (= main_x main_y)) (<= main_a_x 29)), 8374#(and (<= main_a_x 30) (not (= main_x main_y))), 8375#(and (<= main_a_x 31) (not (= main_x main_y))), 8376#(and (not (= main_x main_y)) (<= main_a_x 32)), 8377#(and (not (= main_x main_y)) (<= main_a_x 33)), 8378#(and (not (= main_x main_y)) (<= main_a_x 34)), 8379#(and (<= main_a_x 35) (not (= main_x main_y))), 8380#(and (not (= main_x main_y)) (<= main_a_x 36)), 8381#(and (<= main_a_x 37) (not (= main_x main_y))), 8382#(and (not (= main_x main_y)) (<= main_a_x 38)), 8383#(and (<= main_a_x 39) (not (= main_x main_y))), 8384#(and (<= main_a_x 40) (not (= main_x main_y))), 8385#(and (not (= main_x main_y)) (<= main_a_x 41)), 8386#(and (not (= main_x main_y)) (<= main_a_x 42)), 8387#(and (<= main_a_x 43) (not (= main_x main_y))), 8388#(and (<= main_a_x 44) (not (= main_x main_y))), 8389#(and (<= main_a_x 45) (not (= main_x main_y))), 8390#(and (<= main_a_x 46) (not (= main_x main_y))), 8391#(and (<= main_a_x 47) (not (= main_x main_y))), 8392#(and (<= main_a_x 48) (not (= main_x main_y))), 8393#(and (not (= main_x main_y)) (<= main_a_x 49)), 8394#(and (not (= main_x main_y)) (<= main_a_x 50)), 8395#(and (<= main_a_x 51) (not (= main_x main_y))), 8396#(and (not (= main_x main_y)) (<= main_a_x 52)), 8397#(<= main_a_x 53)] [2018-07-23 13:52:13,160 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 13:52:13,161 INFO L450 AbstractCegarLoop]: Interpolant automaton has 56 states [2018-07-23 13:52:13,161 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2018-07-23 13:52:13,162 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1540, Invalid=1540, Unknown=0, NotChecked=0, Total=3080 [2018-07-23 13:52:13,162 INFO L87 Difference]: Start difference. First operand 57 states and 57 transitions. Second operand 56 states. [2018-07-23 13:52:13,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:13,199 INFO L93 Difference]: Finished difference Result 60 states and 60 transitions. [2018-07-23 13:52:13,199 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2018-07-23 13:52:13,199 INFO L78 Accepts]: Start accepts. Automaton has 56 states. Word has length 56 [2018-07-23 13:52:13,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:13,200 INFO L225 Difference]: With dead ends: 60 [2018-07-23 13:52:13,200 INFO L226 Difference]: Without dead ends: 58 [2018-07-23 13:52:13,201 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 13:52:13,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-07-23 13:52:13,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2018-07-23 13:52:13,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-07-23 13:52:13,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 58 transitions. [2018-07-23 13:52:13,205 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 58 transitions. Word has length 56 [2018-07-23 13:52:13,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:13,205 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 58 transitions. [2018-07-23 13:52:13,205 INFO L472 AbstractCegarLoop]: Interpolant automaton has 56 states. [2018-07-23 13:52:13,206 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 58 transitions. [2018-07-23 13:52:13,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-07-23 13:52:13,206 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:13,206 INFO L357 BasicCegarLoop]: trace histogram [54, 1, 1, 1] [2018-07-23 13:52:13,206 INFO L414 AbstractCegarLoop]: === Iteration 55 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:13,207 INFO L82 PathProgramCache]: Analyzing trace with hash 1642167500, now seen corresponding path program 54 times [2018-07-23 13:52:13,207 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:13,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:13,688 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 13:52:13,688 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:13,688 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [56] total 56 [2018-07-23 13:52:13,689 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:13,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:13,689 INFO L185 omatonBuilderFactory]: Interpolants [8634#true, 8635#false, 8636#(and (not (= main_x main_y)) (<= main_a_x 0)), 8637#(and (not (= main_x main_y)) (<= main_a_x 1)), 8638#(and (not (= main_x main_y)) (<= main_a_x 2)), 8639#(and (not (= main_x main_y)) (<= main_a_x 3)), 8640#(and (<= main_a_x 4) (not (= main_x main_y))), 8641#(and (<= main_a_x 5) (not (= main_x main_y))), 8642#(and (not (= main_x main_y)) (<= main_a_x 6)), 8643#(and (<= main_a_x 7) (not (= main_x main_y))), 8644#(and (not (= main_x main_y)) (<= main_a_x 8)), 8645#(and (not (= main_x main_y)) (<= main_a_x 9)), 8646#(and (<= main_a_x 10) (not (= main_x main_y))), 8647#(and (not (= main_x main_y)) (<= main_a_x 11)), 8648#(and (not (= main_x main_y)) (<= main_a_x 12)), 8649#(and (<= main_a_x 13) (not (= main_x main_y))), 8650#(and (not (= main_x main_y)) (<= main_a_x 14)), 8651#(and (<= main_a_x 15) (not (= main_x main_y))), 8652#(and (not (= main_x main_y)) (<= main_a_x 16)), 8653#(and (not (= main_x main_y)) (<= main_a_x 17)), 8654#(and (<= main_a_x 18) (not (= main_x main_y))), 8655#(and (<= main_a_x 19) (not (= main_x main_y))), 8656#(and (not (= main_x main_y)) (<= main_a_x 20)), 8657#(and (not (= main_x main_y)) (<= main_a_x 21)), 8658#(and (not (= main_x main_y)) (<= main_a_x 22)), 8659#(and (<= main_a_x 23) (not (= main_x main_y))), 8660#(and (not (= main_x main_y)) (<= main_a_x 24)), 8661#(and (<= main_a_x 25) (not (= main_x main_y))), 8662#(and (not (= main_x main_y)) (<= main_a_x 26)), 8663#(and (not (= main_x main_y)) (<= main_a_x 27)), 8664#(and (not (= main_x main_y)) (<= main_a_x 28)), 8665#(and (not (= main_x main_y)) (<= main_a_x 29)), 8666#(and (<= main_a_x 30) (not (= main_x main_y))), 8667#(and (<= main_a_x 31) (not (= main_x main_y))), 8668#(and (not (= main_x main_y)) (<= main_a_x 32)), 8669#(and (not (= main_x main_y)) (<= main_a_x 33)), 8670#(and (not (= main_x main_y)) (<= main_a_x 34)), 8671#(and (<= main_a_x 35) (not (= main_x main_y))), 8672#(and (not (= main_x main_y)) (<= main_a_x 36)), 8673#(and (<= main_a_x 37) (not (= main_x main_y))), 8674#(and (not (= main_x main_y)) (<= main_a_x 38)), 8675#(and (<= main_a_x 39) (not (= main_x main_y))), 8676#(and (<= main_a_x 40) (not (= main_x main_y))), 8677#(and (not (= main_x main_y)) (<= main_a_x 41)), 8678#(and (not (= main_x main_y)) (<= main_a_x 42)), 8679#(and (<= main_a_x 43) (not (= main_x main_y))), 8680#(and (<= main_a_x 44) (not (= main_x main_y))), 8681#(and (<= main_a_x 45) (not (= main_x main_y))), 8682#(and (<= main_a_x 46) (not (= main_x main_y))), 8683#(and (<= main_a_x 47) (not (= main_x main_y))), 8684#(and (<= main_a_x 48) (not (= main_x main_y))), 8685#(and (not (= main_x main_y)) (<= main_a_x 49)), 8686#(and (not (= main_x main_y)) (<= main_a_x 50)), 8687#(and (<= main_a_x 51) (not (= main_x main_y))), 8688#(and (not (= main_x main_y)) (<= main_a_x 52)), 8689#(and (<= main_a_x 53) (not (= main_x main_y))), 8690#(<= main_a_x 54)] [2018-07-23 13:52:13,690 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 13:52:13,690 INFO L450 AbstractCegarLoop]: Interpolant automaton has 57 states [2018-07-23 13:52:13,690 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2018-07-23 13:52:13,691 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1596, Invalid=1596, Unknown=0, NotChecked=0, Total=3192 [2018-07-23 13:52:13,691 INFO L87 Difference]: Start difference. First operand 58 states and 58 transitions. Second operand 57 states. [2018-07-23 13:52:13,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:13,727 INFO L93 Difference]: Finished difference Result 61 states and 61 transitions. [2018-07-23 13:52:13,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2018-07-23 13:52:13,728 INFO L78 Accepts]: Start accepts. Automaton has 57 states. Word has length 57 [2018-07-23 13:52:13,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:13,728 INFO L225 Difference]: With dead ends: 61 [2018-07-23 13:52:13,728 INFO L226 Difference]: Without dead ends: 59 [2018-07-23 13:52:13,729 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=1596, Invalid=1596, Unknown=0, NotChecked=0, Total=3192 [2018-07-23 13:52:13,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-07-23 13:52:13,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2018-07-23 13:52:13,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-07-23 13:52:13,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 59 transitions. [2018-07-23 13:52:13,733 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 59 transitions. Word has length 57 [2018-07-23 13:52:13,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:13,733 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 59 transitions. [2018-07-23 13:52:13,733 INFO L472 AbstractCegarLoop]: Interpolant automaton has 57 states. [2018-07-23 13:52:13,733 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 59 transitions. [2018-07-23 13:52:13,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-07-23 13:52:13,734 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:13,734 INFO L357 BasicCegarLoop]: trace histogram [55, 1, 1, 1] [2018-07-23 13:52:13,734 INFO L414 AbstractCegarLoop]: === Iteration 56 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:13,734 INFO L82 PathProgramCache]: Analyzing trace with hash -632399673, now seen corresponding path program 55 times [2018-07-23 13:52:13,735 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:13,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:14,258 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 13:52:14,259 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:14,259 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [57] total 57 [2018-07-23 13:52:14,259 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:14,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:14,260 INFO L185 omatonBuilderFactory]: Interpolants [8960#(and (not (= main_x main_y)) (<= main_a_x 27)), 8961#(and (not (= main_x main_y)) (<= main_a_x 28)), 8962#(and (not (= main_x main_y)) (<= main_a_x 29)), 8963#(and (<= main_a_x 30) (not (= main_x main_y))), 8964#(and (<= main_a_x 31) (not (= main_x main_y))), 8965#(and (not (= main_x main_y)) (<= main_a_x 32)), 8966#(and (not (= main_x main_y)) (<= main_a_x 33)), 8967#(and (not (= main_x main_y)) (<= main_a_x 34)), 8968#(and (<= main_a_x 35) (not (= main_x main_y))), 8969#(and (not (= main_x main_y)) (<= main_a_x 36)), 8970#(and (<= main_a_x 37) (not (= main_x main_y))), 8971#(and (not (= main_x main_y)) (<= main_a_x 38)), 8972#(and (<= main_a_x 39) (not (= main_x main_y))), 8973#(and (<= main_a_x 40) (not (= main_x main_y))), 8974#(and (not (= main_x main_y)) (<= main_a_x 41)), 8975#(and (not (= main_x main_y)) (<= main_a_x 42)), 8976#(and (<= main_a_x 43) (not (= main_x main_y))), 8977#(and (<= main_a_x 44) (not (= main_x main_y))), 8978#(and (<= main_a_x 45) (not (= main_x main_y))), 8979#(and (<= main_a_x 46) (not (= main_x main_y))), 8980#(and (<= main_a_x 47) (not (= main_x main_y))), 8981#(and (<= main_a_x 48) (not (= main_x main_y))), 8982#(and (not (= main_x main_y)) (<= main_a_x 49)), 8983#(and (not (= main_x main_y)) (<= main_a_x 50)), 8984#(and (<= main_a_x 51) (not (= main_x main_y))), 8985#(and (not (= main_x main_y)) (<= main_a_x 52)), 8986#(and (<= main_a_x 53) (not (= main_x main_y))), 8987#(and (<= main_a_x 54) (not (= main_x main_y))), 8988#(<= main_a_x 55), 8931#true, 8932#false, 8933#(and (not (= main_x main_y)) (<= main_a_x 0)), 8934#(and (not (= main_x main_y)) (<= main_a_x 1)), 8935#(and (not (= main_x main_y)) (<= main_a_x 2)), 8936#(and (not (= main_x main_y)) (<= main_a_x 3)), 8937#(and (<= main_a_x 4) (not (= main_x main_y))), 8938#(and (<= main_a_x 5) (not (= main_x main_y))), 8939#(and (not (= main_x main_y)) (<= main_a_x 6)), 8940#(and (<= main_a_x 7) (not (= main_x main_y))), 8941#(and (not (= main_x main_y)) (<= main_a_x 8)), 8942#(and (not (= main_x main_y)) (<= main_a_x 9)), 8943#(and (<= main_a_x 10) (not (= main_x main_y))), 8944#(and (not (= main_x main_y)) (<= main_a_x 11)), 8945#(and (not (= main_x main_y)) (<= main_a_x 12)), 8946#(and (<= main_a_x 13) (not (= main_x main_y))), 8947#(and (not (= main_x main_y)) (<= main_a_x 14)), 8948#(and (<= main_a_x 15) (not (= main_x main_y))), 8949#(and (not (= main_x main_y)) (<= main_a_x 16)), 8950#(and (not (= main_x main_y)) (<= main_a_x 17)), 8951#(and (<= main_a_x 18) (not (= main_x main_y))), 8952#(and (<= main_a_x 19) (not (= main_x main_y))), 8953#(and (not (= main_x main_y)) (<= main_a_x 20)), 8954#(and (not (= main_x main_y)) (<= main_a_x 21)), 8955#(and (not (= main_x main_y)) (<= main_a_x 22)), 8956#(and (<= main_a_x 23) (not (= main_x main_y))), 8957#(and (not (= main_x main_y)) (<= main_a_x 24)), 8958#(and (<= main_a_x 25) (not (= main_x main_y))), 8959#(and (not (= main_x main_y)) (<= main_a_x 26))] [2018-07-23 13:52:14,260 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 13:52:14,260 INFO L450 AbstractCegarLoop]: Interpolant automaton has 58 states [2018-07-23 13:52:14,261 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2018-07-23 13:52:14,262 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1653, Invalid=1653, Unknown=0, NotChecked=0, Total=3306 [2018-07-23 13:52:14,262 INFO L87 Difference]: Start difference. First operand 59 states and 59 transitions. Second operand 58 states. [2018-07-23 13:52:14,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:14,294 INFO L93 Difference]: Finished difference Result 62 states and 62 transitions. [2018-07-23 13:52:14,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2018-07-23 13:52:14,295 INFO L78 Accepts]: Start accepts. Automaton has 58 states. Word has length 58 [2018-07-23 13:52:14,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:14,295 INFO L225 Difference]: With dead ends: 62 [2018-07-23 13:52:14,295 INFO L226 Difference]: Without dead ends: 60 [2018-07-23 13:52:14,296 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=1653, Invalid=1653, Unknown=0, NotChecked=0, Total=3306 [2018-07-23 13:52:14,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-07-23 13:52:14,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2018-07-23 13:52:14,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-07-23 13:52:14,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 60 transitions. [2018-07-23 13:52:14,301 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 60 transitions. Word has length 58 [2018-07-23 13:52:14,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:14,302 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 60 transitions. [2018-07-23 13:52:14,302 INFO L472 AbstractCegarLoop]: Interpolant automaton has 58 states. [2018-07-23 13:52:14,302 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 60 transitions. [2018-07-23 13:52:14,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-07-23 13:52:14,302 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:14,303 INFO L357 BasicCegarLoop]: trace histogram [56, 1, 1, 1] [2018-07-23 13:52:14,303 INFO L414 AbstractCegarLoop]: === Iteration 57 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:14,303 INFO L82 PathProgramCache]: Analyzing trace with hash 1870461996, now seen corresponding path program 56 times [2018-07-23 13:52:14,303 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:14,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:14,949 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 13:52:14,949 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:14,950 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [58] total 58 [2018-07-23 13:52:14,950 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:14,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:14,951 INFO L185 omatonBuilderFactory]: Interpolants [9233#true, 9234#false, 9235#(and (not (= main_x main_y)) (<= main_a_x 0)), 9236#(and (not (= main_x main_y)) (<= main_a_x 1)), 9237#(and (not (= main_x main_y)) (<= main_a_x 2)), 9238#(and (not (= main_x main_y)) (<= main_a_x 3)), 9239#(and (<= main_a_x 4) (not (= main_x main_y))), 9240#(and (<= main_a_x 5) (not (= main_x main_y))), 9241#(and (not (= main_x main_y)) (<= main_a_x 6)), 9242#(and (<= main_a_x 7) (not (= main_x main_y))), 9243#(and (not (= main_x main_y)) (<= main_a_x 8)), 9244#(and (not (= main_x main_y)) (<= main_a_x 9)), 9245#(and (<= main_a_x 10) (not (= main_x main_y))), 9246#(and (not (= main_x main_y)) (<= main_a_x 11)), 9247#(and (not (= main_x main_y)) (<= main_a_x 12)), 9248#(and (<= main_a_x 13) (not (= main_x main_y))), 9249#(and (not (= main_x main_y)) (<= main_a_x 14)), 9250#(and (<= main_a_x 15) (not (= main_x main_y))), 9251#(and (not (= main_x main_y)) (<= main_a_x 16)), 9252#(and (not (= main_x main_y)) (<= main_a_x 17)), 9253#(and (<= main_a_x 18) (not (= main_x main_y))), 9254#(and (<= main_a_x 19) (not (= main_x main_y))), 9255#(and (not (= main_x main_y)) (<= main_a_x 20)), 9256#(and (not (= main_x main_y)) (<= main_a_x 21)), 9257#(and (not (= main_x main_y)) (<= main_a_x 22)), 9258#(and (<= main_a_x 23) (not (= main_x main_y))), 9259#(and (not (= main_x main_y)) (<= main_a_x 24)), 9260#(and (<= main_a_x 25) (not (= main_x main_y))), 9261#(and (not (= main_x main_y)) (<= main_a_x 26)), 9262#(and (not (= main_x main_y)) (<= main_a_x 27)), 9263#(and (not (= main_x main_y)) (<= main_a_x 28)), 9264#(and (not (= main_x main_y)) (<= main_a_x 29)), 9265#(and (<= main_a_x 30) (not (= main_x main_y))), 9266#(and (<= main_a_x 31) (not (= main_x main_y))), 9267#(and (not (= main_x main_y)) (<= main_a_x 32)), 9268#(and (not (= main_x main_y)) (<= main_a_x 33)), 9269#(and (not (= main_x main_y)) (<= main_a_x 34)), 9270#(and (<= main_a_x 35) (not (= main_x main_y))), 9271#(and (not (= main_x main_y)) (<= main_a_x 36)), 9272#(and (<= main_a_x 37) (not (= main_x main_y))), 9273#(and (not (= main_x main_y)) (<= main_a_x 38)), 9274#(and (<= main_a_x 39) (not (= main_x main_y))), 9275#(and (<= main_a_x 40) (not (= main_x main_y))), 9276#(and (not (= main_x main_y)) (<= main_a_x 41)), 9277#(and (not (= main_x main_y)) (<= main_a_x 42)), 9278#(and (<= main_a_x 43) (not (= main_x main_y))), 9279#(and (<= main_a_x 44) (not (= main_x main_y))), 9280#(and (<= main_a_x 45) (not (= main_x main_y))), 9281#(and (<= main_a_x 46) (not (= main_x main_y))), 9282#(and (<= main_a_x 47) (not (= main_x main_y))), 9283#(and (<= main_a_x 48) (not (= main_x main_y))), 9284#(and (not (= main_x main_y)) (<= main_a_x 49)), 9285#(and (not (= main_x main_y)) (<= main_a_x 50)), 9286#(and (<= main_a_x 51) (not (= main_x main_y))), 9287#(and (not (= main_x main_y)) (<= main_a_x 52)), 9288#(and (<= main_a_x 53) (not (= main_x main_y))), 9289#(and (<= main_a_x 54) (not (= main_x main_y))), 9290#(and (not (= main_x main_y)) (<= main_a_x 55)), 9291#(<= main_a_x 56)] [2018-07-23 13:52:14,951 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 13:52:14,951 INFO L450 AbstractCegarLoop]: Interpolant automaton has 59 states [2018-07-23 13:52:14,952 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2018-07-23 13:52:14,952 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1711, Invalid=1711, Unknown=0, NotChecked=0, Total=3422 [2018-07-23 13:52:14,952 INFO L87 Difference]: Start difference. First operand 60 states and 60 transitions. Second operand 59 states. [2018-07-23 13:52:14,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:14,993 INFO L93 Difference]: Finished difference Result 63 states and 63 transitions. [2018-07-23 13:52:14,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2018-07-23 13:52:14,993 INFO L78 Accepts]: Start accepts. Automaton has 59 states. Word has length 59 [2018-07-23 13:52:14,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:14,994 INFO L225 Difference]: With dead ends: 63 [2018-07-23 13:52:14,994 INFO L226 Difference]: Without dead ends: 61 [2018-07-23 13:52:14,996 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 13:52:14,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-07-23 13:52:14,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2018-07-23 13:52:14,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-07-23 13:52:15,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 61 transitions. [2018-07-23 13:52:15,000 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 61 transitions. Word has length 59 [2018-07-23 13:52:15,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:15,000 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 61 transitions. [2018-07-23 13:52:15,000 INFO L472 AbstractCegarLoop]: Interpolant automaton has 59 states. [2018-07-23 13:52:15,001 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 61 transitions. [2018-07-23 13:52:15,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-07-23 13:52:15,001 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:15,001 INFO L357 BasicCegarLoop]: trace histogram [57, 1, 1, 1] [2018-07-23 13:52:15,001 INFO L414 AbstractCegarLoop]: === Iteration 58 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:15,002 INFO L82 PathProgramCache]: Analyzing trace with hash -2145204889, now seen corresponding path program 57 times [2018-07-23 13:52:15,002 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:15,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:15,466 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 13:52:15,466 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:15,466 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [59] total 59 [2018-07-23 13:52:15,466 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:15,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:15,467 INFO L185 omatonBuilderFactory]: Interpolants [9540#true, 9541#false, 9542#(and (not (= main_x main_y)) (<= main_a_x 0)), 9543#(and (not (= main_x main_y)) (<= main_a_x 1)), 9544#(and (not (= main_x main_y)) (<= main_a_x 2)), 9545#(and (not (= main_x main_y)) (<= main_a_x 3)), 9546#(and (<= main_a_x 4) (not (= main_x main_y))), 9547#(and (<= main_a_x 5) (not (= main_x main_y))), 9548#(and (not (= main_x main_y)) (<= main_a_x 6)), 9549#(and (<= main_a_x 7) (not (= main_x main_y))), 9550#(and (not (= main_x main_y)) (<= main_a_x 8)), 9551#(and (not (= main_x main_y)) (<= main_a_x 9)), 9552#(and (<= main_a_x 10) (not (= main_x main_y))), 9553#(and (not (= main_x main_y)) (<= main_a_x 11)), 9554#(and (not (= main_x main_y)) (<= main_a_x 12)), 9555#(and (<= main_a_x 13) (not (= main_x main_y))), 9556#(and (not (= main_x main_y)) (<= main_a_x 14)), 9557#(and (<= main_a_x 15) (not (= main_x main_y))), 9558#(and (not (= main_x main_y)) (<= main_a_x 16)), 9559#(and (not (= main_x main_y)) (<= main_a_x 17)), 9560#(and (<= main_a_x 18) (not (= main_x main_y))), 9561#(and (<= main_a_x 19) (not (= main_x main_y))), 9562#(and (not (= main_x main_y)) (<= main_a_x 20)), 9563#(and (not (= main_x main_y)) (<= main_a_x 21)), 9564#(and (not (= main_x main_y)) (<= main_a_x 22)), 9565#(and (<= main_a_x 23) (not (= main_x main_y))), 9566#(and (not (= main_x main_y)) (<= main_a_x 24)), 9567#(and (<= main_a_x 25) (not (= main_x main_y))), 9568#(and (not (= main_x main_y)) (<= main_a_x 26)), 9569#(and (not (= main_x main_y)) (<= main_a_x 27)), 9570#(and (not (= main_x main_y)) (<= main_a_x 28)), 9571#(and (not (= main_x main_y)) (<= main_a_x 29)), 9572#(and (<= main_a_x 30) (not (= main_x main_y))), 9573#(and (<= main_a_x 31) (not (= main_x main_y))), 9574#(and (not (= main_x main_y)) (<= main_a_x 32)), 9575#(and (not (= main_x main_y)) (<= main_a_x 33)), 9576#(and (not (= main_x main_y)) (<= main_a_x 34)), 9577#(and (<= main_a_x 35) (not (= main_x main_y))), 9578#(and (not (= main_x main_y)) (<= main_a_x 36)), 9579#(and (<= main_a_x 37) (not (= main_x main_y))), 9580#(and (not (= main_x main_y)) (<= main_a_x 38)), 9581#(and (<= main_a_x 39) (not (= main_x main_y))), 9582#(and (<= main_a_x 40) (not (= main_x main_y))), 9583#(and (not (= main_x main_y)) (<= main_a_x 41)), 9584#(and (not (= main_x main_y)) (<= main_a_x 42)), 9585#(and (<= main_a_x 43) (not (= main_x main_y))), 9586#(and (<= main_a_x 44) (not (= main_x main_y))), 9587#(and (<= main_a_x 45) (not (= main_x main_y))), 9588#(and (<= main_a_x 46) (not (= main_x main_y))), 9589#(and (<= main_a_x 47) (not (= main_x main_y))), 9590#(and (<= main_a_x 48) (not (= main_x main_y))), 9591#(and (not (= main_x main_y)) (<= main_a_x 49)), 9592#(and (not (= main_x main_y)) (<= main_a_x 50)), 9593#(and (<= main_a_x 51) (not (= main_x main_y))), 9594#(and (not (= main_x main_y)) (<= main_a_x 52)), 9595#(and (<= main_a_x 53) (not (= main_x main_y))), 9596#(and (<= main_a_x 54) (not (= main_x main_y))), 9597#(and (not (= main_x main_y)) (<= main_a_x 55)), 9598#(and (not (= main_x main_y)) (<= main_a_x 56)), 9599#(<= main_a_x 57)] [2018-07-23 13:52:15,467 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 13:52:15,467 INFO L450 AbstractCegarLoop]: Interpolant automaton has 60 states [2018-07-23 13:52:15,468 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2018-07-23 13:52:15,468 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1770, Invalid=1770, Unknown=0, NotChecked=0, Total=3540 [2018-07-23 13:52:15,468 INFO L87 Difference]: Start difference. First operand 61 states and 61 transitions. Second operand 60 states. [2018-07-23 13:52:15,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:15,511 INFO L93 Difference]: Finished difference Result 64 states and 64 transitions. [2018-07-23 13:52:15,511 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2018-07-23 13:52:15,511 INFO L78 Accepts]: Start accepts. Automaton has 60 states. Word has length 60 [2018-07-23 13:52:15,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:15,512 INFO L225 Difference]: With dead ends: 64 [2018-07-23 13:52:15,512 INFO L226 Difference]: Without dead ends: 62 [2018-07-23 13:52:15,512 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=1770, Invalid=1770, Unknown=0, NotChecked=0, Total=3540 [2018-07-23 13:52:15,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2018-07-23 13:52:15,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2018-07-23 13:52:15,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-07-23 13:52:15,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 62 transitions. [2018-07-23 13:52:15,517 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 62 transitions. Word has length 60 [2018-07-23 13:52:15,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:15,517 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 62 transitions. [2018-07-23 13:52:15,517 INFO L472 AbstractCegarLoop]: Interpolant automaton has 60 states. [2018-07-23 13:52:15,517 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 62 transitions. [2018-07-23 13:52:15,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-07-23 13:52:15,518 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:15,518 INFO L357 BasicCegarLoop]: trace histogram [58, 1, 1, 1] [2018-07-23 13:52:15,518 INFO L414 AbstractCegarLoop]: === Iteration 59 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:15,518 INFO L82 PathProgramCache]: Analyzing trace with hash -2076826740, now seen corresponding path program 58 times [2018-07-23 13:52:15,518 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:15,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:15,939 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 13:52:15,939 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:15,939 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [60] total 60 [2018-07-23 13:52:15,940 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:15,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:15,940 INFO L185 omatonBuilderFactory]: Interpolants [9856#(and (not (= main_x main_y)) (<= main_a_x 2)), 9857#(and (not (= main_x main_y)) (<= main_a_x 3)), 9858#(and (<= main_a_x 4) (not (= main_x main_y))), 9859#(and (<= main_a_x 5) (not (= main_x main_y))), 9860#(and (not (= main_x main_y)) (<= main_a_x 6)), 9861#(and (<= main_a_x 7) (not (= main_x main_y))), 9862#(and (not (= main_x main_y)) (<= main_a_x 8)), 9863#(and (not (= main_x main_y)) (<= main_a_x 9)), 9864#(and (<= main_a_x 10) (not (= main_x main_y))), 9865#(and (not (= main_x main_y)) (<= main_a_x 11)), 9866#(and (not (= main_x main_y)) (<= main_a_x 12)), 9867#(and (<= main_a_x 13) (not (= main_x main_y))), 9868#(and (not (= main_x main_y)) (<= main_a_x 14)), 9869#(and (<= main_a_x 15) (not (= main_x main_y))), 9870#(and (not (= main_x main_y)) (<= main_a_x 16)), 9871#(and (not (= main_x main_y)) (<= main_a_x 17)), 9872#(and (<= main_a_x 18) (not (= main_x main_y))), 9873#(and (<= main_a_x 19) (not (= main_x main_y))), 9874#(and (not (= main_x main_y)) (<= main_a_x 20)), 9875#(and (not (= main_x main_y)) (<= main_a_x 21)), 9876#(and (not (= main_x main_y)) (<= main_a_x 22)), 9877#(and (<= main_a_x 23) (not (= main_x main_y))), 9878#(and (not (= main_x main_y)) (<= main_a_x 24)), 9879#(and (<= main_a_x 25) (not (= main_x main_y))), 9880#(and (not (= main_x main_y)) (<= main_a_x 26)), 9881#(and (not (= main_x main_y)) (<= main_a_x 27)), 9882#(and (not (= main_x main_y)) (<= main_a_x 28)), 9883#(and (not (= main_x main_y)) (<= main_a_x 29)), 9884#(and (<= main_a_x 30) (not (= main_x main_y))), 9885#(and (<= main_a_x 31) (not (= main_x main_y))), 9886#(and (not (= main_x main_y)) (<= main_a_x 32)), 9887#(and (not (= main_x main_y)) (<= main_a_x 33)), 9888#(and (not (= main_x main_y)) (<= main_a_x 34)), 9889#(and (<= main_a_x 35) (not (= main_x main_y))), 9890#(and (not (= main_x main_y)) (<= main_a_x 36)), 9891#(and (<= main_a_x 37) (not (= main_x main_y))), 9892#(and (not (= main_x main_y)) (<= main_a_x 38)), 9893#(and (<= main_a_x 39) (not (= main_x main_y))), 9894#(and (<= main_a_x 40) (not (= main_x main_y))), 9895#(and (not (= main_x main_y)) (<= main_a_x 41)), 9896#(and (not (= main_x main_y)) (<= main_a_x 42)), 9897#(and (<= main_a_x 43) (not (= main_x main_y))), 9898#(and (<= main_a_x 44) (not (= main_x main_y))), 9899#(and (<= main_a_x 45) (not (= main_x main_y))), 9900#(and (<= main_a_x 46) (not (= main_x main_y))), 9901#(and (<= main_a_x 47) (not (= main_x main_y))), 9902#(and (<= main_a_x 48) (not (= main_x main_y))), 9903#(and (not (= main_x main_y)) (<= main_a_x 49)), 9904#(and (not (= main_x main_y)) (<= main_a_x 50)), 9905#(and (<= main_a_x 51) (not (= main_x main_y))), 9906#(and (not (= main_x main_y)) (<= main_a_x 52)), 9907#(and (<= main_a_x 53) (not (= main_x main_y))), 9908#(and (<= main_a_x 54) (not (= main_x main_y))), 9909#(and (not (= main_x main_y)) (<= main_a_x 55)), 9910#(and (not (= main_x main_y)) (<= main_a_x 56)), 9911#(and (not (= main_x main_y)) (<= main_a_x 57)), 9912#(<= main_a_x 58), 9852#true, 9853#false, 9854#(and (not (= main_x main_y)) (<= main_a_x 0)), 9855#(and (not (= main_x main_y)) (<= main_a_x 1))] [2018-07-23 13:52:15,941 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 13:52:15,941 INFO L450 AbstractCegarLoop]: Interpolant automaton has 61 states [2018-07-23 13:52:15,941 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2018-07-23 13:52:15,942 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1830, Invalid=1830, Unknown=0, NotChecked=0, Total=3660 [2018-07-23 13:52:15,942 INFO L87 Difference]: Start difference. First operand 62 states and 62 transitions. Second operand 61 states. [2018-07-23 13:52:15,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:15,978 INFO L93 Difference]: Finished difference Result 65 states and 65 transitions. [2018-07-23 13:52:15,978 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2018-07-23 13:52:15,978 INFO L78 Accepts]: Start accepts. Automaton has 61 states. Word has length 61 [2018-07-23 13:52:15,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:15,978 INFO L225 Difference]: With dead ends: 65 [2018-07-23 13:52:15,978 INFO L226 Difference]: Without dead ends: 63 [2018-07-23 13:52:15,979 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=1830, Invalid=1830, Unknown=0, NotChecked=0, Total=3660 [2018-07-23 13:52:15,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-07-23 13:52:15,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2018-07-23 13:52:15,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-07-23 13:52:15,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 63 transitions. [2018-07-23 13:52:15,983 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 63 transitions. Word has length 61 [2018-07-23 13:52:15,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:15,983 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 63 transitions. [2018-07-23 13:52:15,983 INFO L472 AbstractCegarLoop]: Interpolant automaton has 61 states. [2018-07-23 13:52:15,983 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 63 transitions. [2018-07-23 13:52:15,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-07-23 13:52:15,984 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:15,984 INFO L357 BasicCegarLoop]: trace histogram [59, 1, 1, 1] [2018-07-23 13:52:15,984 INFO L414 AbstractCegarLoop]: === Iteration 60 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:15,984 INFO L82 PathProgramCache]: Analyzing trace with hash 42895879, now seen corresponding path program 59 times [2018-07-23 13:52:15,984 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:16,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:16,489 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 13:52:16,489 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:16,489 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [61] total 61 [2018-07-23 13:52:16,489 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:16,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:16,490 INFO L185 omatonBuilderFactory]: Interpolants [10169#true, 10170#false, 10171#(and (not (= main_x main_y)) (<= main_a_x 0)), 10172#(and (not (= main_x main_y)) (<= main_a_x 1)), 10173#(and (not (= main_x main_y)) (<= main_a_x 2)), 10174#(and (not (= main_x main_y)) (<= main_a_x 3)), 10175#(and (<= main_a_x 4) (not (= main_x main_y))), 10176#(and (<= main_a_x 5) (not (= main_x main_y))), 10177#(and (not (= main_x main_y)) (<= main_a_x 6)), 10178#(and (<= main_a_x 7) (not (= main_x main_y))), 10179#(and (not (= main_x main_y)) (<= main_a_x 8)), 10180#(and (not (= main_x main_y)) (<= main_a_x 9)), 10181#(and (<= main_a_x 10) (not (= main_x main_y))), 10182#(and (not (= main_x main_y)) (<= main_a_x 11)), 10183#(and (not (= main_x main_y)) (<= main_a_x 12)), 10184#(and (<= main_a_x 13) (not (= main_x main_y))), 10185#(and (not (= main_x main_y)) (<= main_a_x 14)), 10186#(and (<= main_a_x 15) (not (= main_x main_y))), 10187#(and (not (= main_x main_y)) (<= main_a_x 16)), 10188#(and (not (= main_x main_y)) (<= main_a_x 17)), 10189#(and (<= main_a_x 18) (not (= main_x main_y))), 10190#(and (<= main_a_x 19) (not (= main_x main_y))), 10191#(and (not (= main_x main_y)) (<= main_a_x 20)), 10192#(and (not (= main_x main_y)) (<= main_a_x 21)), 10193#(and (not (= main_x main_y)) (<= main_a_x 22)), 10194#(and (<= main_a_x 23) (not (= main_x main_y))), 10195#(and (not (= main_x main_y)) (<= main_a_x 24)), 10196#(and (<= main_a_x 25) (not (= main_x main_y))), 10197#(and (not (= main_x main_y)) (<= main_a_x 26)), 10198#(and (not (= main_x main_y)) (<= main_a_x 27)), 10199#(and (not (= main_x main_y)) (<= main_a_x 28)), 10200#(and (not (= main_x main_y)) (<= main_a_x 29)), 10201#(and (<= main_a_x 30) (not (= main_x main_y))), 10202#(and (<= main_a_x 31) (not (= main_x main_y))), 10203#(and (not (= main_x main_y)) (<= main_a_x 32)), 10204#(and (not (= main_x main_y)) (<= main_a_x 33)), 10205#(and (not (= main_x main_y)) (<= main_a_x 34)), 10206#(and (<= main_a_x 35) (not (= main_x main_y))), 10207#(and (not (= main_x main_y)) (<= main_a_x 36)), 10208#(and (<= main_a_x 37) (not (= main_x main_y))), 10209#(and (not (= main_x main_y)) (<= main_a_x 38)), 10210#(and (<= main_a_x 39) (not (= main_x main_y))), 10211#(and (<= main_a_x 40) (not (= main_x main_y))), 10212#(and (not (= main_x main_y)) (<= main_a_x 41)), 10213#(and (not (= main_x main_y)) (<= main_a_x 42)), 10214#(and (<= main_a_x 43) (not (= main_x main_y))), 10215#(and (<= main_a_x 44) (not (= main_x main_y))), 10216#(and (<= main_a_x 45) (not (= main_x main_y))), 10217#(and (<= main_a_x 46) (not (= main_x main_y))), 10218#(and (<= main_a_x 47) (not (= main_x main_y))), 10219#(and (<= main_a_x 48) (not (= main_x main_y))), 10220#(and (not (= main_x main_y)) (<= main_a_x 49)), 10221#(and (not (= main_x main_y)) (<= main_a_x 50)), 10222#(and (<= main_a_x 51) (not (= main_x main_y))), 10223#(and (not (= main_x main_y)) (<= main_a_x 52)), 10224#(and (<= main_a_x 53) (not (= main_x main_y))), 10225#(and (<= main_a_x 54) (not (= main_x main_y))), 10226#(and (not (= main_x main_y)) (<= main_a_x 55)), 10227#(and (not (= main_x main_y)) (<= main_a_x 56)), 10228#(and (not (= main_x main_y)) (<= main_a_x 57)), 10229#(and (not (= main_x main_y)) (<= main_a_x 58)), 10230#(<= main_a_x 59)] [2018-07-23 13:52:16,490 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 13:52:16,491 INFO L450 AbstractCegarLoop]: Interpolant automaton has 62 states [2018-07-23 13:52:16,491 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2018-07-23 13:52:16,491 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1891, Invalid=1891, Unknown=0, NotChecked=0, Total=3782 [2018-07-23 13:52:16,492 INFO L87 Difference]: Start difference. First operand 63 states and 63 transitions. Second operand 62 states. [2018-07-23 13:52:16,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:16,536 INFO L93 Difference]: Finished difference Result 66 states and 66 transitions. [2018-07-23 13:52:16,536 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2018-07-23 13:52:16,536 INFO L78 Accepts]: Start accepts. Automaton has 62 states. Word has length 62 [2018-07-23 13:52:16,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:16,537 INFO L225 Difference]: With dead ends: 66 [2018-07-23 13:52:16,537 INFO L226 Difference]: Without dead ends: 64 [2018-07-23 13:52:16,538 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=1891, Invalid=1891, Unknown=0, NotChecked=0, Total=3782 [2018-07-23 13:52:16,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-07-23 13:52:16,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2018-07-23 13:52:16,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-07-23 13:52:16,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 64 transitions. [2018-07-23 13:52:16,546 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 64 transitions. Word has length 62 [2018-07-23 13:52:16,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:16,547 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 64 transitions. [2018-07-23 13:52:16,547 INFO L472 AbstractCegarLoop]: Interpolant automaton has 62 states. [2018-07-23 13:52:16,547 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 64 transitions. [2018-07-23 13:52:16,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-07-23 13:52:16,547 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:16,548 INFO L357 BasicCegarLoop]: trace histogram [60, 1, 1, 1] [2018-07-23 13:52:16,548 INFO L414 AbstractCegarLoop]: === Iteration 61 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:16,548 INFO L82 PathProgramCache]: Analyzing trace with hash 1329787628, now seen corresponding path program 60 times [2018-07-23 13:52:16,548 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:16,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:17,045 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 13:52:17,045 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:17,046 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [62] total 62 [2018-07-23 13:52:17,046 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:17,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:17,046 INFO L185 omatonBuilderFactory]: Interpolants [10496#(and (not (= main_x main_y)) (<= main_a_x 3)), 10497#(and (<= main_a_x 4) (not (= main_x main_y))), 10498#(and (<= main_a_x 5) (not (= main_x main_y))), 10499#(and (not (= main_x main_y)) (<= main_a_x 6)), 10500#(and (<= main_a_x 7) (not (= main_x main_y))), 10501#(and (not (= main_x main_y)) (<= main_a_x 8)), 10502#(and (not (= main_x main_y)) (<= main_a_x 9)), 10503#(and (<= main_a_x 10) (not (= main_x main_y))), 10504#(and (not (= main_x main_y)) (<= main_a_x 11)), 10505#(and (not (= main_x main_y)) (<= main_a_x 12)), 10506#(and (<= main_a_x 13) (not (= main_x main_y))), 10507#(and (not (= main_x main_y)) (<= main_a_x 14)), 10508#(and (<= main_a_x 15) (not (= main_x main_y))), 10509#(and (not (= main_x main_y)) (<= main_a_x 16)), 10510#(and (not (= main_x main_y)) (<= main_a_x 17)), 10511#(and (<= main_a_x 18) (not (= main_x main_y))), 10512#(and (<= main_a_x 19) (not (= main_x main_y))), 10513#(and (not (= main_x main_y)) (<= main_a_x 20)), 10514#(and (not (= main_x main_y)) (<= main_a_x 21)), 10515#(and (not (= main_x main_y)) (<= main_a_x 22)), 10516#(and (<= main_a_x 23) (not (= main_x main_y))), 10517#(and (not (= main_x main_y)) (<= main_a_x 24)), 10518#(and (<= main_a_x 25) (not (= main_x main_y))), 10519#(and (not (= main_x main_y)) (<= main_a_x 26)), 10520#(and (not (= main_x main_y)) (<= main_a_x 27)), 10521#(and (not (= main_x main_y)) (<= main_a_x 28)), 10522#(and (not (= main_x main_y)) (<= main_a_x 29)), 10523#(and (<= main_a_x 30) (not (= main_x main_y))), 10524#(and (<= main_a_x 31) (not (= main_x main_y))), 10525#(and (not (= main_x main_y)) (<= main_a_x 32)), 10526#(and (not (= main_x main_y)) (<= main_a_x 33)), 10527#(and (not (= main_x main_y)) (<= main_a_x 34)), 10528#(and (<= main_a_x 35) (not (= main_x main_y))), 10529#(and (not (= main_x main_y)) (<= main_a_x 36)), 10530#(and (<= main_a_x 37) (not (= main_x main_y))), 10531#(and (not (= main_x main_y)) (<= main_a_x 38)), 10532#(and (<= main_a_x 39) (not (= main_x main_y))), 10533#(and (<= main_a_x 40) (not (= main_x main_y))), 10534#(and (not (= main_x main_y)) (<= main_a_x 41)), 10535#(and (not (= main_x main_y)) (<= main_a_x 42)), 10536#(and (<= main_a_x 43) (not (= main_x main_y))), 10537#(and (<= main_a_x 44) (not (= main_x main_y))), 10538#(and (<= main_a_x 45) (not (= main_x main_y))), 10539#(and (<= main_a_x 46) (not (= main_x main_y))), 10540#(and (<= main_a_x 47) (not (= main_x main_y))), 10541#(and (<= main_a_x 48) (not (= main_x main_y))), 10542#(and (not (= main_x main_y)) (<= main_a_x 49)), 10543#(and (not (= main_x main_y)) (<= main_a_x 50)), 10544#(and (<= main_a_x 51) (not (= main_x main_y))), 10545#(and (not (= main_x main_y)) (<= main_a_x 52)), 10546#(and (<= main_a_x 53) (not (= main_x main_y))), 10547#(and (<= main_a_x 54) (not (= main_x main_y))), 10548#(and (not (= main_x main_y)) (<= main_a_x 55)), 10549#(and (not (= main_x main_y)) (<= main_a_x 56)), 10550#(and (not (= main_x main_y)) (<= main_a_x 57)), 10551#(and (not (= main_x main_y)) (<= main_a_x 58)), 10552#(and (not (= main_x main_y)) (<= main_a_x 59)), 10553#(<= main_a_x 60), 10491#true, 10492#false, 10493#(and (not (= main_x main_y)) (<= main_a_x 0)), 10494#(and (not (= main_x main_y)) (<= main_a_x 1)), 10495#(and (not (= main_x main_y)) (<= main_a_x 2))] [2018-07-23 13:52:17,047 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 13:52:17,047 INFO L450 AbstractCegarLoop]: Interpolant automaton has 63 states [2018-07-23 13:52:17,047 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2018-07-23 13:52:17,047 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1953, Invalid=1953, Unknown=0, NotChecked=0, Total=3906 [2018-07-23 13:52:17,048 INFO L87 Difference]: Start difference. First operand 64 states and 64 transitions. Second operand 63 states. [2018-07-23 13:52:17,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:17,088 INFO L93 Difference]: Finished difference Result 67 states and 67 transitions. [2018-07-23 13:52:17,088 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2018-07-23 13:52:17,088 INFO L78 Accepts]: Start accepts. Automaton has 63 states. Word has length 63 [2018-07-23 13:52:17,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:17,089 INFO L225 Difference]: With dead ends: 67 [2018-07-23 13:52:17,089 INFO L226 Difference]: Without dead ends: 65 [2018-07-23 13:52:17,090 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=1953, Invalid=1953, Unknown=0, NotChecked=0, Total=3906 [2018-07-23 13:52:17,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-07-23 13:52:17,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2018-07-23 13:52:17,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-07-23 13:52:17,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 65 transitions. [2018-07-23 13:52:17,095 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 65 transitions. Word has length 63 [2018-07-23 13:52:17,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:17,095 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 65 transitions. [2018-07-23 13:52:17,095 INFO L472 AbstractCegarLoop]: Interpolant automaton has 63 states. [2018-07-23 13:52:17,096 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 65 transitions. [2018-07-23 13:52:17,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-07-23 13:52:17,096 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:17,096 INFO L357 BasicCegarLoop]: trace histogram [61, 1, 1, 1] [2018-07-23 13:52:17,097 INFO L414 AbstractCegarLoop]: === Iteration 62 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:17,097 INFO L82 PathProgramCache]: Analyzing trace with hash -1726241113, now seen corresponding path program 61 times [2018-07-23 13:52:17,097 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:17,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:17,652 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 13:52:17,652 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:17,652 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [63] total 63 [2018-07-23 13:52:17,653 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:17,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:17,653 INFO L185 omatonBuilderFactory]: Interpolants [10880#(and (<= main_a_x 60) (not (= main_x main_y))), 10881#(<= main_a_x 61), 10818#true, 10819#false, 10820#(and (not (= main_x main_y)) (<= main_a_x 0)), 10821#(and (not (= main_x main_y)) (<= main_a_x 1)), 10822#(and (not (= main_x main_y)) (<= main_a_x 2)), 10823#(and (not (= main_x main_y)) (<= main_a_x 3)), 10824#(and (<= main_a_x 4) (not (= main_x main_y))), 10825#(and (<= main_a_x 5) (not (= main_x main_y))), 10826#(and (not (= main_x main_y)) (<= main_a_x 6)), 10827#(and (<= main_a_x 7) (not (= main_x main_y))), 10828#(and (not (= main_x main_y)) (<= main_a_x 8)), 10829#(and (not (= main_x main_y)) (<= main_a_x 9)), 10830#(and (<= main_a_x 10) (not (= main_x main_y))), 10831#(and (not (= main_x main_y)) (<= main_a_x 11)), 10832#(and (not (= main_x main_y)) (<= main_a_x 12)), 10833#(and (<= main_a_x 13) (not (= main_x main_y))), 10834#(and (not (= main_x main_y)) (<= main_a_x 14)), 10835#(and (<= main_a_x 15) (not (= main_x main_y))), 10836#(and (not (= main_x main_y)) (<= main_a_x 16)), 10837#(and (not (= main_x main_y)) (<= main_a_x 17)), 10838#(and (<= main_a_x 18) (not (= main_x main_y))), 10839#(and (<= main_a_x 19) (not (= main_x main_y))), 10840#(and (not (= main_x main_y)) (<= main_a_x 20)), 10841#(and (not (= main_x main_y)) (<= main_a_x 21)), 10842#(and (not (= main_x main_y)) (<= main_a_x 22)), 10843#(and (<= main_a_x 23) (not (= main_x main_y))), 10844#(and (not (= main_x main_y)) (<= main_a_x 24)), 10845#(and (<= main_a_x 25) (not (= main_x main_y))), 10846#(and (not (= main_x main_y)) (<= main_a_x 26)), 10847#(and (not (= main_x main_y)) (<= main_a_x 27)), 10848#(and (not (= main_x main_y)) (<= main_a_x 28)), 10849#(and (not (= main_x main_y)) (<= main_a_x 29)), 10850#(and (<= main_a_x 30) (not (= main_x main_y))), 10851#(and (<= main_a_x 31) (not (= main_x main_y))), 10852#(and (not (= main_x main_y)) (<= main_a_x 32)), 10853#(and (not (= main_x main_y)) (<= main_a_x 33)), 10854#(and (not (= main_x main_y)) (<= main_a_x 34)), 10855#(and (<= main_a_x 35) (not (= main_x main_y))), 10856#(and (not (= main_x main_y)) (<= main_a_x 36)), 10857#(and (<= main_a_x 37) (not (= main_x main_y))), 10858#(and (not (= main_x main_y)) (<= main_a_x 38)), 10859#(and (<= main_a_x 39) (not (= main_x main_y))), 10860#(and (<= main_a_x 40) (not (= main_x main_y))), 10861#(and (not (= main_x main_y)) (<= main_a_x 41)), 10862#(and (not (= main_x main_y)) (<= main_a_x 42)), 10863#(and (<= main_a_x 43) (not (= main_x main_y))), 10864#(and (<= main_a_x 44) (not (= main_x main_y))), 10865#(and (<= main_a_x 45) (not (= main_x main_y))), 10866#(and (<= main_a_x 46) (not (= main_x main_y))), 10867#(and (<= main_a_x 47) (not (= main_x main_y))), 10868#(and (<= main_a_x 48) (not (= main_x main_y))), 10869#(and (not (= main_x main_y)) (<= main_a_x 49)), 10870#(and (not (= main_x main_y)) (<= main_a_x 50)), 10871#(and (<= main_a_x 51) (not (= main_x main_y))), 10872#(and (not (= main_x main_y)) (<= main_a_x 52)), 10873#(and (<= main_a_x 53) (not (= main_x main_y))), 10874#(and (<= main_a_x 54) (not (= main_x main_y))), 10875#(and (not (= main_x main_y)) (<= main_a_x 55)), 10876#(and (not (= main_x main_y)) (<= main_a_x 56)), 10877#(and (not (= main_x main_y)) (<= main_a_x 57)), 10878#(and (not (= main_x main_y)) (<= main_a_x 58)), 10879#(and (not (= main_x main_y)) (<= main_a_x 59))] [2018-07-23 13:52:17,654 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 13:52:17,654 INFO L450 AbstractCegarLoop]: Interpolant automaton has 64 states [2018-07-23 13:52:17,654 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2018-07-23 13:52:17,655 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2018-07-23 13:52:17,655 INFO L87 Difference]: Start difference. First operand 65 states and 65 transitions. Second operand 64 states. [2018-07-23 13:52:17,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:17,694 INFO L93 Difference]: Finished difference Result 68 states and 68 transitions. [2018-07-23 13:52:17,694 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2018-07-23 13:52:17,695 INFO L78 Accepts]: Start accepts. Automaton has 64 states. Word has length 64 [2018-07-23 13:52:17,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:17,695 INFO L225 Difference]: With dead ends: 68 [2018-07-23 13:52:17,695 INFO L226 Difference]: Without dead ends: 66 [2018-07-23 13:52:17,696 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2018-07-23 13:52:17,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-07-23 13:52:17,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2018-07-23 13:52:17,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2018-07-23 13:52:17,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 66 transitions. [2018-07-23 13:52:17,701 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 66 transitions. Word has length 64 [2018-07-23 13:52:17,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:17,701 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 66 transitions. [2018-07-23 13:52:17,702 INFO L472 AbstractCegarLoop]: Interpolant automaton has 64 states. [2018-07-23 13:52:17,702 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 66 transitions. [2018-07-23 13:52:17,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-07-23 13:52:17,702 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:17,703 INFO L357 BasicCegarLoop]: trace histogram [62, 1, 1, 1] [2018-07-23 13:52:17,703 INFO L414 AbstractCegarLoop]: === Iteration 63 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:17,703 INFO L82 PathProgramCache]: Analyzing trace with hash -1973851572, now seen corresponding path program 62 times [2018-07-23 13:52:17,703 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:17,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:18,186 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 13:52:18,187 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:18,187 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [64] total 64 [2018-07-23 13:52:18,187 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:18,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:18,188 INFO L185 omatonBuilderFactory]: Interpolants [11150#true, 11151#false, 11152#(and (not (= main_x main_y)) (<= main_a_x 0)), 11153#(and (not (= main_x main_y)) (<= main_a_x 1)), 11154#(and (not (= main_x main_y)) (<= main_a_x 2)), 11155#(and (not (= main_x main_y)) (<= main_a_x 3)), 11156#(and (<= main_a_x 4) (not (= main_x main_y))), 11157#(and (<= main_a_x 5) (not (= main_x main_y))), 11158#(and (not (= main_x main_y)) (<= main_a_x 6)), 11159#(and (<= main_a_x 7) (not (= main_x main_y))), 11160#(and (not (= main_x main_y)) (<= main_a_x 8)), 11161#(and (not (= main_x main_y)) (<= main_a_x 9)), 11162#(and (<= main_a_x 10) (not (= main_x main_y))), 11163#(and (not (= main_x main_y)) (<= main_a_x 11)), 11164#(and (not (= main_x main_y)) (<= main_a_x 12)), 11165#(and (<= main_a_x 13) (not (= main_x main_y))), 11166#(and (not (= main_x main_y)) (<= main_a_x 14)), 11167#(and (<= main_a_x 15) (not (= main_x main_y))), 11168#(and (not (= main_x main_y)) (<= main_a_x 16)), 11169#(and (not (= main_x main_y)) (<= main_a_x 17)), 11170#(and (<= main_a_x 18) (not (= main_x main_y))), 11171#(and (<= main_a_x 19) (not (= main_x main_y))), 11172#(and (not (= main_x main_y)) (<= main_a_x 20)), 11173#(and (not (= main_x main_y)) (<= main_a_x 21)), 11174#(and (not (= main_x main_y)) (<= main_a_x 22)), 11175#(and (<= main_a_x 23) (not (= main_x main_y))), 11176#(and (not (= main_x main_y)) (<= main_a_x 24)), 11177#(and (<= main_a_x 25) (not (= main_x main_y))), 11178#(and (not (= main_x main_y)) (<= main_a_x 26)), 11179#(and (not (= main_x main_y)) (<= main_a_x 27)), 11180#(and (not (= main_x main_y)) (<= main_a_x 28)), 11181#(and (not (= main_x main_y)) (<= main_a_x 29)), 11182#(and (<= main_a_x 30) (not (= main_x main_y))), 11183#(and (<= main_a_x 31) (not (= main_x main_y))), 11184#(and (not (= main_x main_y)) (<= main_a_x 32)), 11185#(and (not (= main_x main_y)) (<= main_a_x 33)), 11186#(and (not (= main_x main_y)) (<= main_a_x 34)), 11187#(and (<= main_a_x 35) (not (= main_x main_y))), 11188#(and (not (= main_x main_y)) (<= main_a_x 36)), 11189#(and (<= main_a_x 37) (not (= main_x main_y))), 11190#(and (not (= main_x main_y)) (<= main_a_x 38)), 11191#(and (<= main_a_x 39) (not (= main_x main_y))), 11192#(and (<= main_a_x 40) (not (= main_x main_y))), 11193#(and (not (= main_x main_y)) (<= main_a_x 41)), 11194#(and (not (= main_x main_y)) (<= main_a_x 42)), 11195#(and (<= main_a_x 43) (not (= main_x main_y))), 11196#(and (<= main_a_x 44) (not (= main_x main_y))), 11197#(and (<= main_a_x 45) (not (= main_x main_y))), 11198#(and (<= main_a_x 46) (not (= main_x main_y))), 11199#(and (<= main_a_x 47) (not (= main_x main_y))), 11200#(and (<= main_a_x 48) (not (= main_x main_y))), 11201#(and (not (= main_x main_y)) (<= main_a_x 49)), 11202#(and (not (= main_x main_y)) (<= main_a_x 50)), 11203#(and (<= main_a_x 51) (not (= main_x main_y))), 11204#(and (not (= main_x main_y)) (<= main_a_x 52)), 11205#(and (<= main_a_x 53) (not (= main_x main_y))), 11206#(and (<= main_a_x 54) (not (= main_x main_y))), 11207#(and (not (= main_x main_y)) (<= main_a_x 55)), 11208#(and (not (= main_x main_y)) (<= main_a_x 56)), 11209#(and (not (= main_x main_y)) (<= main_a_x 57)), 11210#(and (not (= main_x main_y)) (<= main_a_x 58)), 11211#(and (not (= main_x main_y)) (<= main_a_x 59)), 11212#(and (<= main_a_x 60) (not (= main_x main_y))), 11213#(and (not (= main_x main_y)) (<= main_a_x 61)), 11214#(<= main_a_x 62)] [2018-07-23 13:52:18,188 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 13:52:18,188 INFO L450 AbstractCegarLoop]: Interpolant automaton has 65 states [2018-07-23 13:52:18,189 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2018-07-23 13:52:18,189 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2080, Invalid=2080, Unknown=0, NotChecked=0, Total=4160 [2018-07-23 13:52:18,190 INFO L87 Difference]: Start difference. First operand 66 states and 66 transitions. Second operand 65 states. [2018-07-23 13:52:18,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:18,238 INFO L93 Difference]: Finished difference Result 69 states and 69 transitions. [2018-07-23 13:52:18,238 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2018-07-23 13:52:18,239 INFO L78 Accepts]: Start accepts. Automaton has 65 states. Word has length 65 [2018-07-23 13:52:18,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:18,239 INFO L225 Difference]: With dead ends: 69 [2018-07-23 13:52:18,240 INFO L226 Difference]: Without dead ends: 67 [2018-07-23 13:52:18,240 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=2080, Invalid=2080, Unknown=0, NotChecked=0, Total=4160 [2018-07-23 13:52:18,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-07-23 13:52:18,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2018-07-23 13:52:18,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-07-23 13:52:18,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 67 transitions. [2018-07-23 13:52:18,245 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 67 transitions. Word has length 65 [2018-07-23 13:52:18,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:18,246 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 67 transitions. [2018-07-23 13:52:18,246 INFO L472 AbstractCegarLoop]: Interpolant automaton has 65 states. [2018-07-23 13:52:18,246 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 67 transitions. [2018-07-23 13:52:18,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-07-23 13:52:18,247 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:18,247 INFO L357 BasicCegarLoop]: trace histogram [63, 1, 1, 1] [2018-07-23 13:52:18,247 INFO L414 AbstractCegarLoop]: === Iteration 64 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:18,247 INFO L82 PathProgramCache]: Analyzing trace with hash -1059841209, now seen corresponding path program 63 times [2018-07-23 13:52:18,247 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:18,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:18,935 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 13:52:18,936 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:18,936 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [65] total 65 [2018-07-23 13:52:18,936 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:18,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:18,937 INFO L185 omatonBuilderFactory]: Interpolants [11520#(and (<= main_a_x 31) (not (= main_x main_y))), 11521#(and (not (= main_x main_y)) (<= main_a_x 32)), 11522#(and (not (= main_x main_y)) (<= main_a_x 33)), 11523#(and (not (= main_x main_y)) (<= main_a_x 34)), 11524#(and (<= main_a_x 35) (not (= main_x main_y))), 11525#(and (not (= main_x main_y)) (<= main_a_x 36)), 11526#(and (<= main_a_x 37) (not (= main_x main_y))), 11527#(and (not (= main_x main_y)) (<= main_a_x 38)), 11528#(and (<= main_a_x 39) (not (= main_x main_y))), 11529#(and (<= main_a_x 40) (not (= main_x main_y))), 11530#(and (not (= main_x main_y)) (<= main_a_x 41)), 11531#(and (not (= main_x main_y)) (<= main_a_x 42)), 11532#(and (<= main_a_x 43) (not (= main_x main_y))), 11533#(and (<= main_a_x 44) (not (= main_x main_y))), 11534#(and (<= main_a_x 45) (not (= main_x main_y))), 11535#(and (<= main_a_x 46) (not (= main_x main_y))), 11536#(and (<= main_a_x 47) (not (= main_x main_y))), 11537#(and (<= main_a_x 48) (not (= main_x main_y))), 11538#(and (not (= main_x main_y)) (<= main_a_x 49)), 11539#(and (not (= main_x main_y)) (<= main_a_x 50)), 11540#(and (<= main_a_x 51) (not (= main_x main_y))), 11541#(and (not (= main_x main_y)) (<= main_a_x 52)), 11542#(and (<= main_a_x 53) (not (= main_x main_y))), 11543#(and (<= main_a_x 54) (not (= main_x main_y))), 11544#(and (not (= main_x main_y)) (<= main_a_x 55)), 11545#(and (not (= main_x main_y)) (<= main_a_x 56)), 11546#(and (not (= main_x main_y)) (<= main_a_x 57)), 11547#(and (not (= main_x main_y)) (<= main_a_x 58)), 11548#(and (not (= main_x main_y)) (<= main_a_x 59)), 11549#(and (<= main_a_x 60) (not (= main_x main_y))), 11550#(and (not (= main_x main_y)) (<= main_a_x 61)), 11551#(and (not (= main_x main_y)) (<= main_a_x 62)), 11552#(<= main_a_x 63), 11487#true, 11488#false, 11489#(and (not (= main_x main_y)) (<= main_a_x 0)), 11490#(and (not (= main_x main_y)) (<= main_a_x 1)), 11491#(and (not (= main_x main_y)) (<= main_a_x 2)), 11492#(and (not (= main_x main_y)) (<= main_a_x 3)), 11493#(and (<= main_a_x 4) (not (= main_x main_y))), 11494#(and (<= main_a_x 5) (not (= main_x main_y))), 11495#(and (not (= main_x main_y)) (<= main_a_x 6)), 11496#(and (<= main_a_x 7) (not (= main_x main_y))), 11497#(and (not (= main_x main_y)) (<= main_a_x 8)), 11498#(and (not (= main_x main_y)) (<= main_a_x 9)), 11499#(and (<= main_a_x 10) (not (= main_x main_y))), 11500#(and (not (= main_x main_y)) (<= main_a_x 11)), 11501#(and (not (= main_x main_y)) (<= main_a_x 12)), 11502#(and (<= main_a_x 13) (not (= main_x main_y))), 11503#(and (not (= main_x main_y)) (<= main_a_x 14)), 11504#(and (<= main_a_x 15) (not (= main_x main_y))), 11505#(and (not (= main_x main_y)) (<= main_a_x 16)), 11506#(and (not (= main_x main_y)) (<= main_a_x 17)), 11507#(and (<= main_a_x 18) (not (= main_x main_y))), 11508#(and (<= main_a_x 19) (not (= main_x main_y))), 11509#(and (not (= main_x main_y)) (<= main_a_x 20)), 11510#(and (not (= main_x main_y)) (<= main_a_x 21)), 11511#(and (not (= main_x main_y)) (<= main_a_x 22)), 11512#(and (<= main_a_x 23) (not (= main_x main_y))), 11513#(and (not (= main_x main_y)) (<= main_a_x 24)), 11514#(and (<= main_a_x 25) (not (= main_x main_y))), 11515#(and (not (= main_x main_y)) (<= main_a_x 26)), 11516#(and (not (= main_x main_y)) (<= main_a_x 27)), 11517#(and (not (= main_x main_y)) (<= main_a_x 28)), 11518#(and (not (= main_x main_y)) (<= main_a_x 29)), 11519#(and (<= main_a_x 30) (not (= main_x main_y)))] [2018-07-23 13:52:18,938 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 13:52:18,938 INFO L450 AbstractCegarLoop]: Interpolant automaton has 66 states [2018-07-23 13:52:18,942 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2018-07-23 13:52:18,942 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2145, Invalid=2145, Unknown=0, NotChecked=0, Total=4290 [2018-07-23 13:52:18,942 INFO L87 Difference]: Start difference. First operand 67 states and 67 transitions. Second operand 66 states. [2018-07-23 13:52:18,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:18,983 INFO L93 Difference]: Finished difference Result 70 states and 70 transitions. [2018-07-23 13:52:18,983 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2018-07-23 13:52:18,983 INFO L78 Accepts]: Start accepts. Automaton has 66 states. Word has length 66 [2018-07-23 13:52:18,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:18,984 INFO L225 Difference]: With dead ends: 70 [2018-07-23 13:52:18,984 INFO L226 Difference]: Without dead ends: 68 [2018-07-23 13:52:18,985 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 13:52:18,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-07-23 13:52:18,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2018-07-23 13:52:18,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-07-23 13:52:18,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 68 transitions. [2018-07-23 13:52:18,990 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 68 transitions. Word has length 66 [2018-07-23 13:52:18,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:18,991 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 68 transitions. [2018-07-23 13:52:18,991 INFO L472 AbstractCegarLoop]: Interpolant automaton has 66 states. [2018-07-23 13:52:18,991 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 68 transitions. [2018-07-23 13:52:18,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-07-23 13:52:18,992 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:18,992 INFO L357 BasicCegarLoop]: trace histogram [64, 1, 1, 1] [2018-07-23 13:52:18,992 INFO L414 AbstractCegarLoop]: === Iteration 65 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:18,992 INFO L82 PathProgramCache]: Analyzing trace with hash 1504676268, now seen corresponding path program 64 times [2018-07-23 13:52:18,992 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:19,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:19,629 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 13:52:19,630 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:19,630 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [66] total 66 [2018-07-23 13:52:19,630 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:19,631 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 13:52:19,632 INFO L185 omatonBuilderFactory]: Interpolants [11829#true, 11830#false, 11831#(and (not (= main_x main_y)) (<= main_a_x 0)), 11832#(and (not (= main_x main_y)) (<= main_a_x 1)), 11833#(and (not (= main_x main_y)) (<= main_a_x 2)), 11834#(and (not (= main_x main_y)) (<= main_a_x 3)), 11835#(and (<= main_a_x 4) (not (= main_x main_y))), 11836#(and (<= main_a_x 5) (not (= main_x main_y))), 11837#(and (not (= main_x main_y)) (<= main_a_x 6)), 11838#(and (<= main_a_x 7) (not (= main_x main_y))), 11839#(and (not (= main_x main_y)) (<= main_a_x 8)), 11840#(and (not (= main_x main_y)) (<= main_a_x 9)), 11841#(and (<= main_a_x 10) (not (= main_x main_y))), 11842#(and (not (= main_x main_y)) (<= main_a_x 11)), 11843#(and (not (= main_x main_y)) (<= main_a_x 12)), 11844#(and (<= main_a_x 13) (not (= main_x main_y))), 11845#(and (not (= main_x main_y)) (<= main_a_x 14)), 11846#(and (<= main_a_x 15) (not (= main_x main_y))), 11847#(and (not (= main_x main_y)) (<= main_a_x 16)), 11848#(and (not (= main_x main_y)) (<= main_a_x 17)), 11849#(and (<= main_a_x 18) (not (= main_x main_y))), 11850#(and (<= main_a_x 19) (not (= main_x main_y))), 11851#(and (not (= main_x main_y)) (<= main_a_x 20)), 11852#(and (not (= main_x main_y)) (<= main_a_x 21)), 11853#(and (not (= main_x main_y)) (<= main_a_x 22)), 11854#(and (<= main_a_x 23) (not (= main_x main_y))), 11855#(and (not (= main_x main_y)) (<= main_a_x 24)), 11856#(and (<= main_a_x 25) (not (= main_x main_y))), 11857#(and (not (= main_x main_y)) (<= main_a_x 26)), 11858#(and (not (= main_x main_y)) (<= main_a_x 27)), 11859#(and (not (= main_x main_y)) (<= main_a_x 28)), 11860#(and (not (= main_x main_y)) (<= main_a_x 29)), 11861#(and (<= main_a_x 30) (not (= main_x main_y))), 11862#(and (<= main_a_x 31) (not (= main_x main_y))), 11863#(and (not (= main_x main_y)) (<= main_a_x 32)), 11864#(and (not (= main_x main_y)) (<= main_a_x 33)), 11865#(and (not (= main_x main_y)) (<= main_a_x 34)), 11866#(and (<= main_a_x 35) (not (= main_x main_y))), 11867#(and (not (= main_x main_y)) (<= main_a_x 36)), 11868#(and (<= main_a_x 37) (not (= main_x main_y))), 11869#(and (not (= main_x main_y)) (<= main_a_x 38)), 11870#(and (<= main_a_x 39) (not (= main_x main_y))), 11871#(and (<= main_a_x 40) (not (= main_x main_y))), 11872#(and (not (= main_x main_y)) (<= main_a_x 41)), 11873#(and (not (= main_x main_y)) (<= main_a_x 42)), 11874#(and (<= main_a_x 43) (not (= main_x main_y))), 11875#(and (<= main_a_x 44) (not (= main_x main_y))), 11876#(and (<= main_a_x 45) (not (= main_x main_y))), 11877#(and (<= main_a_x 46) (not (= main_x main_y))), 11878#(and (<= main_a_x 47) (not (= main_x main_y))), 11879#(and (<= main_a_x 48) (not (= main_x main_y))), 11880#(and (not (= main_x main_y)) (<= main_a_x 49)), 11881#(and (not (= main_x main_y)) (<= main_a_x 50)), 11882#(and (<= main_a_x 51) (not (= main_x main_y))), 11883#(and (not (= main_x main_y)) (<= main_a_x 52)), 11884#(and (<= main_a_x 53) (not (= main_x main_y))), 11885#(and (<= main_a_x 54) (not (= main_x main_y))), 11886#(and (not (= main_x main_y)) (<= main_a_x 55)), 11887#(and (not (= main_x main_y)) (<= main_a_x 56)), 11888#(and (not (= main_x main_y)) (<= main_a_x 57)), 11889#(and (not (= main_x main_y)) (<= main_a_x 58)), 11890#(and (not (= main_x main_y)) (<= main_a_x 59)), 11891#(and (<= main_a_x 60) (not (= main_x main_y))), 11892#(and (not (= main_x main_y)) (<= main_a_x 61)), 11893#(and (not (= main_x main_y)) (<= main_a_x 62)), 11894#(and (<= main_a_x 63) (not (= main_x main_y))), 11895#(<= main_a_x 64)] [2018-07-23 13:52:19,637 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 13:52:19,637 INFO L450 AbstractCegarLoop]: Interpolant automaton has 67 states [2018-07-23 13:52:19,638 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2018-07-23 13:52:19,638 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2211, Invalid=2211, Unknown=0, NotChecked=0, Total=4422 [2018-07-23 13:52:19,639 INFO L87 Difference]: Start difference. First operand 68 states and 68 transitions. Second operand 67 states. [2018-07-23 13:52:19,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:19,691 INFO L93 Difference]: Finished difference Result 71 states and 71 transitions. [2018-07-23 13:52:19,691 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2018-07-23 13:52:19,692 INFO L78 Accepts]: Start accepts. Automaton has 67 states. Word has length 67 [2018-07-23 13:52:19,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:19,692 INFO L225 Difference]: With dead ends: 71 [2018-07-23 13:52:19,692 INFO L226 Difference]: Without dead ends: 69 [2018-07-23 13:52:19,693 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=2211, Invalid=2211, Unknown=0, NotChecked=0, Total=4422 [2018-07-23 13:52:19,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-07-23 13:52:19,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2018-07-23 13:52:19,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-07-23 13:52:19,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 69 transitions. [2018-07-23 13:52:19,698 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 69 transitions. Word has length 67 [2018-07-23 13:52:19,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:19,698 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 69 transitions. [2018-07-23 13:52:19,698 INFO L472 AbstractCegarLoop]: Interpolant automaton has 67 states. [2018-07-23 13:52:19,699 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 69 transitions. [2018-07-23 13:52:19,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-07-23 13:52:19,699 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:19,699 INFO L357 BasicCegarLoop]: trace histogram [65, 1, 1, 1] [2018-07-23 13:52:19,699 INFO L414 AbstractCegarLoop]: === Iteration 66 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:19,700 INFO L82 PathProgramCache]: Analyzing trace with hash -599660569, now seen corresponding path program 65 times [2018-07-23 13:52:19,700 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:19,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:20,295 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 13:52:20,295 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:20,295 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [67] total 67 [2018-07-23 13:52:20,296 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:20,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:20,296 INFO L185 omatonBuilderFactory]: Interpolants [12176#true, 12177#false, 12178#(and (not (= main_x main_y)) (<= main_a_x 0)), 12179#(and (not (= main_x main_y)) (<= main_a_x 1)), 12180#(and (not (= main_x main_y)) (<= main_a_x 2)), 12181#(and (not (= main_x main_y)) (<= main_a_x 3)), 12182#(and (<= main_a_x 4) (not (= main_x main_y))), 12183#(and (<= main_a_x 5) (not (= main_x main_y))), 12184#(and (not (= main_x main_y)) (<= main_a_x 6)), 12185#(and (<= main_a_x 7) (not (= main_x main_y))), 12186#(and (not (= main_x main_y)) (<= main_a_x 8)), 12187#(and (not (= main_x main_y)) (<= main_a_x 9)), 12188#(and (<= main_a_x 10) (not (= main_x main_y))), 12189#(and (not (= main_x main_y)) (<= main_a_x 11)), 12190#(and (not (= main_x main_y)) (<= main_a_x 12)), 12191#(and (<= main_a_x 13) (not (= main_x main_y))), 12192#(and (not (= main_x main_y)) (<= main_a_x 14)), 12193#(and (<= main_a_x 15) (not (= main_x main_y))), 12194#(and (not (= main_x main_y)) (<= main_a_x 16)), 12195#(and (not (= main_x main_y)) (<= main_a_x 17)), 12196#(and (<= main_a_x 18) (not (= main_x main_y))), 12197#(and (<= main_a_x 19) (not (= main_x main_y))), 12198#(and (not (= main_x main_y)) (<= main_a_x 20)), 12199#(and (not (= main_x main_y)) (<= main_a_x 21)), 12200#(and (not (= main_x main_y)) (<= main_a_x 22)), 12201#(and (<= main_a_x 23) (not (= main_x main_y))), 12202#(and (not (= main_x main_y)) (<= main_a_x 24)), 12203#(and (<= main_a_x 25) (not (= main_x main_y))), 12204#(and (not (= main_x main_y)) (<= main_a_x 26)), 12205#(and (not (= main_x main_y)) (<= main_a_x 27)), 12206#(and (not (= main_x main_y)) (<= main_a_x 28)), 12207#(and (not (= main_x main_y)) (<= main_a_x 29)), 12208#(and (<= main_a_x 30) (not (= main_x main_y))), 12209#(and (<= main_a_x 31) (not (= main_x main_y))), 12210#(and (not (= main_x main_y)) (<= main_a_x 32)), 12211#(and (not (= main_x main_y)) (<= main_a_x 33)), 12212#(and (not (= main_x main_y)) (<= main_a_x 34)), 12213#(and (<= main_a_x 35) (not (= main_x main_y))), 12214#(and (not (= main_x main_y)) (<= main_a_x 36)), 12215#(and (<= main_a_x 37) (not (= main_x main_y))), 12216#(and (not (= main_x main_y)) (<= main_a_x 38)), 12217#(and (<= main_a_x 39) (not (= main_x main_y))), 12218#(and (<= main_a_x 40) (not (= main_x main_y))), 12219#(and (not (= main_x main_y)) (<= main_a_x 41)), 12220#(and (not (= main_x main_y)) (<= main_a_x 42)), 12221#(and (<= main_a_x 43) (not (= main_x main_y))), 12222#(and (<= main_a_x 44) (not (= main_x main_y))), 12223#(and (<= main_a_x 45) (not (= main_x main_y))), 12224#(and (<= main_a_x 46) (not (= main_x main_y))), 12225#(and (<= main_a_x 47) (not (= main_x main_y))), 12226#(and (<= main_a_x 48) (not (= main_x main_y))), 12227#(and (not (= main_x main_y)) (<= main_a_x 49)), 12228#(and (not (= main_x main_y)) (<= main_a_x 50)), 12229#(and (<= main_a_x 51) (not (= main_x main_y))), 12230#(and (not (= main_x main_y)) (<= main_a_x 52)), 12231#(and (<= main_a_x 53) (not (= main_x main_y))), 12232#(and (<= main_a_x 54) (not (= main_x main_y))), 12233#(and (not (= main_x main_y)) (<= main_a_x 55)), 12234#(and (not (= main_x main_y)) (<= main_a_x 56)), 12235#(and (not (= main_x main_y)) (<= main_a_x 57)), 12236#(and (not (= main_x main_y)) (<= main_a_x 58)), 12237#(and (not (= main_x main_y)) (<= main_a_x 59)), 12238#(and (<= main_a_x 60) (not (= main_x main_y))), 12239#(and (not (= main_x main_y)) (<= main_a_x 61)), 12240#(and (not (= main_x main_y)) (<= main_a_x 62)), 12241#(and (<= main_a_x 63) (not (= main_x main_y))), 12242#(and (<= main_a_x 64) (not (= main_x main_y))), 12243#(<= main_a_x 65)] [2018-07-23 13:52:20,297 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 13:52:20,297 INFO L450 AbstractCegarLoop]: Interpolant automaton has 68 states [2018-07-23 13:52:20,298 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2018-07-23 13:52:20,298 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2278, Invalid=2278, Unknown=0, NotChecked=0, Total=4556 [2018-07-23 13:52:20,298 INFO L87 Difference]: Start difference. First operand 69 states and 69 transitions. Second operand 68 states. [2018-07-23 13:52:20,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:20,348 INFO L93 Difference]: Finished difference Result 72 states and 72 transitions. [2018-07-23 13:52:20,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2018-07-23 13:52:20,348 INFO L78 Accepts]: Start accepts. Automaton has 68 states. Word has length 68 [2018-07-23 13:52:20,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:20,349 INFO L225 Difference]: With dead ends: 72 [2018-07-23 13:52:20,349 INFO L226 Difference]: Without dead ends: 70 [2018-07-23 13:52:20,350 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=2278, Invalid=2278, Unknown=0, NotChecked=0, Total=4556 [2018-07-23 13:52:20,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-07-23 13:52:20,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2018-07-23 13:52:20,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2018-07-23 13:52:20,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 70 transitions. [2018-07-23 13:52:20,354 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 70 transitions. Word has length 68 [2018-07-23 13:52:20,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:20,355 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 70 transitions. [2018-07-23 13:52:20,355 INFO L472 AbstractCegarLoop]: Interpolant automaton has 68 states. [2018-07-23 13:52:20,355 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 70 transitions. [2018-07-23 13:52:20,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-07-23 13:52:20,355 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:20,355 INFO L357 BasicCegarLoop]: trace histogram [66, 1, 1, 1] [2018-07-23 13:52:20,356 INFO L414 AbstractCegarLoop]: === Iteration 67 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:20,356 INFO L82 PathProgramCache]: Analyzing trace with hash -1409593076, now seen corresponding path program 66 times [2018-07-23 13:52:20,356 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:20,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:21,053 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 13:52:21,054 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:21,054 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [68] total 68 [2018-07-23 13:52:21,054 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:21,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:21,054 INFO L185 omatonBuilderFactory]: Interpolants [12544#(and (not (= main_x main_y)) (<= main_a_x 14)), 12545#(and (<= main_a_x 15) (not (= main_x main_y))), 12546#(and (not (= main_x main_y)) (<= main_a_x 16)), 12547#(and (not (= main_x main_y)) (<= main_a_x 17)), 12548#(and (<= main_a_x 18) (not (= main_x main_y))), 12549#(and (<= main_a_x 19) (not (= main_x main_y))), 12550#(and (not (= main_x main_y)) (<= main_a_x 20)), 12551#(and (not (= main_x main_y)) (<= main_a_x 21)), 12552#(and (not (= main_x main_y)) (<= main_a_x 22)), 12553#(and (<= main_a_x 23) (not (= main_x main_y))), 12554#(and (not (= main_x main_y)) (<= main_a_x 24)), 12555#(and (<= main_a_x 25) (not (= main_x main_y))), 12556#(and (not (= main_x main_y)) (<= main_a_x 26)), 12557#(and (not (= main_x main_y)) (<= main_a_x 27)), 12558#(and (not (= main_x main_y)) (<= main_a_x 28)), 12559#(and (not (= main_x main_y)) (<= main_a_x 29)), 12560#(and (<= main_a_x 30) (not (= main_x main_y))), 12561#(and (<= main_a_x 31) (not (= main_x main_y))), 12562#(and (not (= main_x main_y)) (<= main_a_x 32)), 12563#(and (not (= main_x main_y)) (<= main_a_x 33)), 12564#(and (not (= main_x main_y)) (<= main_a_x 34)), 12565#(and (<= main_a_x 35) (not (= main_x main_y))), 12566#(and (not (= main_x main_y)) (<= main_a_x 36)), 12567#(and (<= main_a_x 37) (not (= main_x main_y))), 12568#(and (not (= main_x main_y)) (<= main_a_x 38)), 12569#(and (<= main_a_x 39) (not (= main_x main_y))), 12570#(and (<= main_a_x 40) (not (= main_x main_y))), 12571#(and (not (= main_x main_y)) (<= main_a_x 41)), 12572#(and (not (= main_x main_y)) (<= main_a_x 42)), 12573#(and (<= main_a_x 43) (not (= main_x main_y))), 12574#(and (<= main_a_x 44) (not (= main_x main_y))), 12575#(and (<= main_a_x 45) (not (= main_x main_y))), 12576#(and (<= main_a_x 46) (not (= main_x main_y))), 12577#(and (<= main_a_x 47) (not (= main_x main_y))), 12578#(and (<= main_a_x 48) (not (= main_x main_y))), 12579#(and (not (= main_x main_y)) (<= main_a_x 49)), 12580#(and (not (= main_x main_y)) (<= main_a_x 50)), 12581#(and (<= main_a_x 51) (not (= main_x main_y))), 12582#(and (not (= main_x main_y)) (<= main_a_x 52)), 12583#(and (<= main_a_x 53) (not (= main_x main_y))), 12584#(and (<= main_a_x 54) (not (= main_x main_y))), 12585#(and (not (= main_x main_y)) (<= main_a_x 55)), 12586#(and (not (= main_x main_y)) (<= main_a_x 56)), 12587#(and (not (= main_x main_y)) (<= main_a_x 57)), 12588#(and (not (= main_x main_y)) (<= main_a_x 58)), 12589#(and (not (= main_x main_y)) (<= main_a_x 59)), 12590#(and (<= main_a_x 60) (not (= main_x main_y))), 12591#(and (not (= main_x main_y)) (<= main_a_x 61)), 12592#(and (not (= main_x main_y)) (<= main_a_x 62)), 12593#(and (<= main_a_x 63) (not (= main_x main_y))), 12594#(and (<= main_a_x 64) (not (= main_x main_y))), 12595#(and (<= main_a_x 65) (not (= main_x main_y))), 12596#(<= main_a_x 66), 12528#true, 12529#false, 12530#(and (not (= main_x main_y)) (<= main_a_x 0)), 12531#(and (not (= main_x main_y)) (<= main_a_x 1)), 12532#(and (not (= main_x main_y)) (<= main_a_x 2)), 12533#(and (not (= main_x main_y)) (<= main_a_x 3)), 12534#(and (<= main_a_x 4) (not (= main_x main_y))), 12535#(and (<= main_a_x 5) (not (= main_x main_y))), 12536#(and (not (= main_x main_y)) (<= main_a_x 6)), 12537#(and (<= main_a_x 7) (not (= main_x main_y))), 12538#(and (not (= main_x main_y)) (<= main_a_x 8)), 12539#(and (not (= main_x main_y)) (<= main_a_x 9)), 12540#(and (<= main_a_x 10) (not (= main_x main_y))), 12541#(and (not (= main_x main_y)) (<= main_a_x 11)), 12542#(and (not (= main_x main_y)) (<= main_a_x 12)), 12543#(and (<= main_a_x 13) (not (= main_x main_y)))] [2018-07-23 13:52:21,055 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 13:52:21,056 INFO L450 AbstractCegarLoop]: Interpolant automaton has 69 states [2018-07-23 13:52:21,056 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2018-07-23 13:52:21,056 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2346, Invalid=2346, Unknown=0, NotChecked=0, Total=4692 [2018-07-23 13:52:21,057 INFO L87 Difference]: Start difference. First operand 70 states and 70 transitions. Second operand 69 states. [2018-07-23 13:52:21,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:21,104 INFO L93 Difference]: Finished difference Result 73 states and 73 transitions. [2018-07-23 13:52:21,104 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2018-07-23 13:52:21,105 INFO L78 Accepts]: Start accepts. Automaton has 69 states. Word has length 69 [2018-07-23 13:52:21,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:21,105 INFO L225 Difference]: With dead ends: 73 [2018-07-23 13:52:21,105 INFO L226 Difference]: Without dead ends: 71 [2018-07-23 13:52:21,106 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=2346, Invalid=2346, Unknown=0, NotChecked=0, Total=4692 [2018-07-23 13:52:21,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-07-23 13:52:21,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2018-07-23 13:52:21,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-07-23 13:52:21,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 71 transitions. [2018-07-23 13:52:21,111 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 71 transitions. Word has length 69 [2018-07-23 13:52:21,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:21,111 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 71 transitions. [2018-07-23 13:52:21,111 INFO L472 AbstractCegarLoop]: Interpolant automaton has 69 states. [2018-07-23 13:52:21,111 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 71 transitions. [2018-07-23 13:52:21,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-07-23 13:52:21,112 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:21,112 INFO L357 BasicCegarLoop]: trace histogram [67, 1, 1, 1] [2018-07-23 13:52:21,112 INFO L414 AbstractCegarLoop]: === Iteration 68 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:21,112 INFO L82 PathProgramCache]: Analyzing trace with hash -747697017, now seen corresponding path program 67 times [2018-07-23 13:52:21,113 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:21,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:21,665 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 13:52:21,665 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:21,665 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [69] total 69 [2018-07-23 13:52:21,665 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:21,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:21,666 INFO L185 omatonBuilderFactory]: Interpolants [12928#(and (not (= main_x main_y)) (<= main_a_x 41)), 12929#(and (not (= main_x main_y)) (<= main_a_x 42)), 12930#(and (<= main_a_x 43) (not (= main_x main_y))), 12931#(and (<= main_a_x 44) (not (= main_x main_y))), 12932#(and (<= main_a_x 45) (not (= main_x main_y))), 12933#(and (<= main_a_x 46) (not (= main_x main_y))), 12934#(and (<= main_a_x 47) (not (= main_x main_y))), 12935#(and (<= main_a_x 48) (not (= main_x main_y))), 12936#(and (not (= main_x main_y)) (<= main_a_x 49)), 12937#(and (not (= main_x main_y)) (<= main_a_x 50)), 12938#(and (<= main_a_x 51) (not (= main_x main_y))), 12939#(and (not (= main_x main_y)) (<= main_a_x 52)), 12940#(and (<= main_a_x 53) (not (= main_x main_y))), 12941#(and (<= main_a_x 54) (not (= main_x main_y))), 12942#(and (not (= main_x main_y)) (<= main_a_x 55)), 12943#(and (not (= main_x main_y)) (<= main_a_x 56)), 12944#(and (not (= main_x main_y)) (<= main_a_x 57)), 12945#(and (not (= main_x main_y)) (<= main_a_x 58)), 12946#(and (not (= main_x main_y)) (<= main_a_x 59)), 12947#(and (<= main_a_x 60) (not (= main_x main_y))), 12948#(and (not (= main_x main_y)) (<= main_a_x 61)), 12949#(and (not (= main_x main_y)) (<= main_a_x 62)), 12950#(and (<= main_a_x 63) (not (= main_x main_y))), 12951#(and (<= main_a_x 64) (not (= main_x main_y))), 12952#(and (<= main_a_x 65) (not (= main_x main_y))), 12953#(and (<= main_a_x 66) (not (= main_x main_y))), 12954#(<= main_a_x 67), 12885#true, 12886#false, 12887#(and (not (= main_x main_y)) (<= main_a_x 0)), 12888#(and (not (= main_x main_y)) (<= main_a_x 1)), 12889#(and (not (= main_x main_y)) (<= main_a_x 2)), 12890#(and (not (= main_x main_y)) (<= main_a_x 3)), 12891#(and (<= main_a_x 4) (not (= main_x main_y))), 12892#(and (<= main_a_x 5) (not (= main_x main_y))), 12893#(and (not (= main_x main_y)) (<= main_a_x 6)), 12894#(and (<= main_a_x 7) (not (= main_x main_y))), 12895#(and (not (= main_x main_y)) (<= main_a_x 8)), 12896#(and (not (= main_x main_y)) (<= main_a_x 9)), 12897#(and (<= main_a_x 10) (not (= main_x main_y))), 12898#(and (not (= main_x main_y)) (<= main_a_x 11)), 12899#(and (not (= main_x main_y)) (<= main_a_x 12)), 12900#(and (<= main_a_x 13) (not (= main_x main_y))), 12901#(and (not (= main_x main_y)) (<= main_a_x 14)), 12902#(and (<= main_a_x 15) (not (= main_x main_y))), 12903#(and (not (= main_x main_y)) (<= main_a_x 16)), 12904#(and (not (= main_x main_y)) (<= main_a_x 17)), 12905#(and (<= main_a_x 18) (not (= main_x main_y))), 12906#(and (<= main_a_x 19) (not (= main_x main_y))), 12907#(and (not (= main_x main_y)) (<= main_a_x 20)), 12908#(and (not (= main_x main_y)) (<= main_a_x 21)), 12909#(and (not (= main_x main_y)) (<= main_a_x 22)), 12910#(and (<= main_a_x 23) (not (= main_x main_y))), 12911#(and (not (= main_x main_y)) (<= main_a_x 24)), 12912#(and (<= main_a_x 25) (not (= main_x main_y))), 12913#(and (not (= main_x main_y)) (<= main_a_x 26)), 12914#(and (not (= main_x main_y)) (<= main_a_x 27)), 12915#(and (not (= main_x main_y)) (<= main_a_x 28)), 12916#(and (not (= main_x main_y)) (<= main_a_x 29)), 12917#(and (<= main_a_x 30) (not (= main_x main_y))), 12918#(and (<= main_a_x 31) (not (= main_x main_y))), 12919#(and (not (= main_x main_y)) (<= main_a_x 32)), 12920#(and (not (= main_x main_y)) (<= main_a_x 33)), 12921#(and (not (= main_x main_y)) (<= main_a_x 34)), 12922#(and (<= main_a_x 35) (not (= main_x main_y))), 12923#(and (not (= main_x main_y)) (<= main_a_x 36)), 12924#(and (<= main_a_x 37) (not (= main_x main_y))), 12925#(and (not (= main_x main_y)) (<= main_a_x 38)), 12926#(and (<= main_a_x 39) (not (= main_x main_y))), 12927#(and (<= main_a_x 40) (not (= main_x main_y)))] [2018-07-23 13:52:21,666 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 13:52:21,666 INFO L450 AbstractCegarLoop]: Interpolant automaton has 70 states [2018-07-23 13:52:21,667 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2018-07-23 13:52:21,667 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2415, Invalid=2415, Unknown=0, NotChecked=0, Total=4830 [2018-07-23 13:52:21,667 INFO L87 Difference]: Start difference. First operand 71 states and 71 transitions. Second operand 70 states. [2018-07-23 13:52:21,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:21,701 INFO L93 Difference]: Finished difference Result 74 states and 74 transitions. [2018-07-23 13:52:21,701 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2018-07-23 13:52:21,701 INFO L78 Accepts]: Start accepts. Automaton has 70 states. Word has length 70 [2018-07-23 13:52:21,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:21,702 INFO L225 Difference]: With dead ends: 74 [2018-07-23 13:52:21,702 INFO L226 Difference]: Without dead ends: 72 [2018-07-23 13:52:21,703 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=2415, Invalid=2415, Unknown=0, NotChecked=0, Total=4830 [2018-07-23 13:52:21,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-07-23 13:52:21,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2018-07-23 13:52:21,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-07-23 13:52:21,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 72 transitions. [2018-07-23 13:52:21,707 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 72 transitions. Word has length 70 [2018-07-23 13:52:21,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:21,707 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 72 transitions. [2018-07-23 13:52:21,708 INFO L472 AbstractCegarLoop]: Interpolant automaton has 70 states. [2018-07-23 13:52:21,708 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 72 transitions. [2018-07-23 13:52:21,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-07-23 13:52:21,708 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:21,708 INFO L357 BasicCegarLoop]: trace histogram [68, 1, 1, 1] [2018-07-23 13:52:21,709 INFO L414 AbstractCegarLoop]: === Iteration 69 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:21,709 INFO L82 PathProgramCache]: Analyzing trace with hash -1703755668, now seen corresponding path program 68 times [2018-07-23 13:52:21,709 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:21,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:22,234 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 13:52:22,235 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:22,235 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [70] total 70 [2018-07-23 13:52:22,235 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:22,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:22,236 INFO L185 omatonBuilderFactory]: Interpolants [13312#(and (<= main_a_x 63) (not (= main_x main_y))), 13313#(and (<= main_a_x 64) (not (= main_x main_y))), 13314#(and (<= main_a_x 65) (not (= main_x main_y))), 13315#(and (<= main_a_x 66) (not (= main_x main_y))), 13316#(and (<= main_a_x 67) (not (= main_x main_y))), 13317#(<= main_a_x 68), 13247#true, 13248#false, 13249#(and (not (= main_x main_y)) (<= main_a_x 0)), 13250#(and (not (= main_x main_y)) (<= main_a_x 1)), 13251#(and (not (= main_x main_y)) (<= main_a_x 2)), 13252#(and (not (= main_x main_y)) (<= main_a_x 3)), 13253#(and (<= main_a_x 4) (not (= main_x main_y))), 13254#(and (<= main_a_x 5) (not (= main_x main_y))), 13255#(and (not (= main_x main_y)) (<= main_a_x 6)), 13256#(and (<= main_a_x 7) (not (= main_x main_y))), 13257#(and (not (= main_x main_y)) (<= main_a_x 8)), 13258#(and (not (= main_x main_y)) (<= main_a_x 9)), 13259#(and (<= main_a_x 10) (not (= main_x main_y))), 13260#(and (not (= main_x main_y)) (<= main_a_x 11)), 13261#(and (not (= main_x main_y)) (<= main_a_x 12)), 13262#(and (<= main_a_x 13) (not (= main_x main_y))), 13263#(and (not (= main_x main_y)) (<= main_a_x 14)), 13264#(and (<= main_a_x 15) (not (= main_x main_y))), 13265#(and (not (= main_x main_y)) (<= main_a_x 16)), 13266#(and (not (= main_x main_y)) (<= main_a_x 17)), 13267#(and (<= main_a_x 18) (not (= main_x main_y))), 13268#(and (<= main_a_x 19) (not (= main_x main_y))), 13269#(and (not (= main_x main_y)) (<= main_a_x 20)), 13270#(and (not (= main_x main_y)) (<= main_a_x 21)), 13271#(and (not (= main_x main_y)) (<= main_a_x 22)), 13272#(and (<= main_a_x 23) (not (= main_x main_y))), 13273#(and (not (= main_x main_y)) (<= main_a_x 24)), 13274#(and (<= main_a_x 25) (not (= main_x main_y))), 13275#(and (not (= main_x main_y)) (<= main_a_x 26)), 13276#(and (not (= main_x main_y)) (<= main_a_x 27)), 13277#(and (not (= main_x main_y)) (<= main_a_x 28)), 13278#(and (not (= main_x main_y)) (<= main_a_x 29)), 13279#(and (<= main_a_x 30) (not (= main_x main_y))), 13280#(and (<= main_a_x 31) (not (= main_x main_y))), 13281#(and (not (= main_x main_y)) (<= main_a_x 32)), 13282#(and (not (= main_x main_y)) (<= main_a_x 33)), 13283#(and (not (= main_x main_y)) (<= main_a_x 34)), 13284#(and (<= main_a_x 35) (not (= main_x main_y))), 13285#(and (not (= main_x main_y)) (<= main_a_x 36)), 13286#(and (<= main_a_x 37) (not (= main_x main_y))), 13287#(and (not (= main_x main_y)) (<= main_a_x 38)), 13288#(and (<= main_a_x 39) (not (= main_x main_y))), 13289#(and (<= main_a_x 40) (not (= main_x main_y))), 13290#(and (not (= main_x main_y)) (<= main_a_x 41)), 13291#(and (not (= main_x main_y)) (<= main_a_x 42)), 13292#(and (<= main_a_x 43) (not (= main_x main_y))), 13293#(and (<= main_a_x 44) (not (= main_x main_y))), 13294#(and (<= main_a_x 45) (not (= main_x main_y))), 13295#(and (<= main_a_x 46) (not (= main_x main_y))), 13296#(and (<= main_a_x 47) (not (= main_x main_y))), 13297#(and (<= main_a_x 48) (not (= main_x main_y))), 13298#(and (not (= main_x main_y)) (<= main_a_x 49)), 13299#(and (not (= main_x main_y)) (<= main_a_x 50)), 13300#(and (<= main_a_x 51) (not (= main_x main_y))), 13301#(and (not (= main_x main_y)) (<= main_a_x 52)), 13302#(and (<= main_a_x 53) (not (= main_x main_y))), 13303#(and (<= main_a_x 54) (not (= main_x main_y))), 13304#(and (not (= main_x main_y)) (<= main_a_x 55)), 13305#(and (not (= main_x main_y)) (<= main_a_x 56)), 13306#(and (not (= main_x main_y)) (<= main_a_x 57)), 13307#(and (not (= main_x main_y)) (<= main_a_x 58)), 13308#(and (not (= main_x main_y)) (<= main_a_x 59)), 13309#(and (<= main_a_x 60) (not (= main_x main_y))), 13310#(and (not (= main_x main_y)) (<= main_a_x 61)), 13311#(and (not (= main_x main_y)) (<= main_a_x 62))] [2018-07-23 13:52:22,236 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 13:52:22,236 INFO L450 AbstractCegarLoop]: Interpolant automaton has 71 states [2018-07-23 13:52:22,237 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2018-07-23 13:52:22,237 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2485, Invalid=2485, Unknown=0, NotChecked=0, Total=4970 [2018-07-23 13:52:22,238 INFO L87 Difference]: Start difference. First operand 72 states and 72 transitions. Second operand 71 states. [2018-07-23 13:52:22,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:22,287 INFO L93 Difference]: Finished difference Result 75 states and 75 transitions. [2018-07-23 13:52:22,287 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2018-07-23 13:52:22,287 INFO L78 Accepts]: Start accepts. Automaton has 71 states. Word has length 71 [2018-07-23 13:52:22,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:22,288 INFO L225 Difference]: With dead ends: 75 [2018-07-23 13:52:22,288 INFO L226 Difference]: Without dead ends: 73 [2018-07-23 13:52:22,289 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=2485, Invalid=2485, Unknown=0, NotChecked=0, Total=4970 [2018-07-23 13:52:22,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-07-23 13:52:22,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2018-07-23 13:52:22,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-07-23 13:52:22,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 73 transitions. [2018-07-23 13:52:22,294 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 73 transitions. Word has length 71 [2018-07-23 13:52:22,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:22,294 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 73 transitions. [2018-07-23 13:52:22,294 INFO L472 AbstractCegarLoop]: Interpolant automaton has 71 states. [2018-07-23 13:52:22,294 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 73 transitions. [2018-07-23 13:52:22,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-07-23 13:52:22,295 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:22,295 INFO L357 BasicCegarLoop]: trace histogram [69, 1, 1, 1] [2018-07-23 13:52:22,295 INFO L414 AbstractCegarLoop]: === Iteration 70 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:22,295 INFO L82 PathProgramCache]: Analyzing trace with hash -1276802777, now seen corresponding path program 69 times [2018-07-23 13:52:22,295 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:22,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:22,838 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 13:52:22,838 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:22,838 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [71] total 71 [2018-07-23 13:52:22,838 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:22,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:22,839 INFO L185 omatonBuilderFactory]: Interpolants [13614#true, 13615#false, 13616#(and (not (= main_x main_y)) (<= main_a_x 0)), 13617#(and (not (= main_x main_y)) (<= main_a_x 1)), 13618#(and (not (= main_x main_y)) (<= main_a_x 2)), 13619#(and (not (= main_x main_y)) (<= main_a_x 3)), 13620#(and (<= main_a_x 4) (not (= main_x main_y))), 13621#(and (<= main_a_x 5) (not (= main_x main_y))), 13622#(and (not (= main_x main_y)) (<= main_a_x 6)), 13623#(and (<= main_a_x 7) (not (= main_x main_y))), 13624#(and (not (= main_x main_y)) (<= main_a_x 8)), 13625#(and (not (= main_x main_y)) (<= main_a_x 9)), 13626#(and (<= main_a_x 10) (not (= main_x main_y))), 13627#(and (not (= main_x main_y)) (<= main_a_x 11)), 13628#(and (not (= main_x main_y)) (<= main_a_x 12)), 13629#(and (<= main_a_x 13) (not (= main_x main_y))), 13630#(and (not (= main_x main_y)) (<= main_a_x 14)), 13631#(and (<= main_a_x 15) (not (= main_x main_y))), 13632#(and (not (= main_x main_y)) (<= main_a_x 16)), 13633#(and (not (= main_x main_y)) (<= main_a_x 17)), 13634#(and (<= main_a_x 18) (not (= main_x main_y))), 13635#(and (<= main_a_x 19) (not (= main_x main_y))), 13636#(and (not (= main_x main_y)) (<= main_a_x 20)), 13637#(and (not (= main_x main_y)) (<= main_a_x 21)), 13638#(and (not (= main_x main_y)) (<= main_a_x 22)), 13639#(and (<= main_a_x 23) (not (= main_x main_y))), 13640#(and (not (= main_x main_y)) (<= main_a_x 24)), 13641#(and (<= main_a_x 25) (not (= main_x main_y))), 13642#(and (not (= main_x main_y)) (<= main_a_x 26)), 13643#(and (not (= main_x main_y)) (<= main_a_x 27)), 13644#(and (not (= main_x main_y)) (<= main_a_x 28)), 13645#(and (not (= main_x main_y)) (<= main_a_x 29)), 13646#(and (<= main_a_x 30) (not (= main_x main_y))), 13647#(and (<= main_a_x 31) (not (= main_x main_y))), 13648#(and (not (= main_x main_y)) (<= main_a_x 32)), 13649#(and (not (= main_x main_y)) (<= main_a_x 33)), 13650#(and (not (= main_x main_y)) (<= main_a_x 34)), 13651#(and (<= main_a_x 35) (not (= main_x main_y))), 13652#(and (not (= main_x main_y)) (<= main_a_x 36)), 13653#(and (<= main_a_x 37) (not (= main_x main_y))), 13654#(and (not (= main_x main_y)) (<= main_a_x 38)), 13655#(and (<= main_a_x 39) (not (= main_x main_y))), 13656#(and (<= main_a_x 40) (not (= main_x main_y))), 13657#(and (not (= main_x main_y)) (<= main_a_x 41)), 13658#(and (not (= main_x main_y)) (<= main_a_x 42)), 13659#(and (<= main_a_x 43) (not (= main_x main_y))), 13660#(and (<= main_a_x 44) (not (= main_x main_y))), 13661#(and (<= main_a_x 45) (not (= main_x main_y))), 13662#(and (<= main_a_x 46) (not (= main_x main_y))), 13663#(and (<= main_a_x 47) (not (= main_x main_y))), 13664#(and (<= main_a_x 48) (not (= main_x main_y))), 13665#(and (not (= main_x main_y)) (<= main_a_x 49)), 13666#(and (not (= main_x main_y)) (<= main_a_x 50)), 13667#(and (<= main_a_x 51) (not (= main_x main_y))), 13668#(and (not (= main_x main_y)) (<= main_a_x 52)), 13669#(and (<= main_a_x 53) (not (= main_x main_y))), 13670#(and (<= main_a_x 54) (not (= main_x main_y))), 13671#(and (not (= main_x main_y)) (<= main_a_x 55)), 13672#(and (not (= main_x main_y)) (<= main_a_x 56)), 13673#(and (not (= main_x main_y)) (<= main_a_x 57)), 13674#(and (not (= main_x main_y)) (<= main_a_x 58)), 13675#(and (not (= main_x main_y)) (<= main_a_x 59)), 13676#(and (<= main_a_x 60) (not (= main_x main_y))), 13677#(and (not (= main_x main_y)) (<= main_a_x 61)), 13678#(and (not (= main_x main_y)) (<= main_a_x 62)), 13679#(and (<= main_a_x 63) (not (= main_x main_y))), 13680#(and (<= main_a_x 64) (not (= main_x main_y))), 13681#(and (<= main_a_x 65) (not (= main_x main_y))), 13682#(and (<= main_a_x 66) (not (= main_x main_y))), 13683#(and (<= main_a_x 67) (not (= main_x main_y))), 13684#(and (not (= main_x main_y)) (<= main_a_x 68)), 13685#(<= main_a_x 69)] [2018-07-23 13:52:22,839 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 13:52:22,839 INFO L450 AbstractCegarLoop]: Interpolant automaton has 72 states [2018-07-23 13:52:22,840 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2018-07-23 13:52:22,840 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2556, Invalid=2556, Unknown=0, NotChecked=0, Total=5112 [2018-07-23 13:52:22,840 INFO L87 Difference]: Start difference. First operand 73 states and 73 transitions. Second operand 72 states. [2018-07-23 13:52:22,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:22,884 INFO L93 Difference]: Finished difference Result 76 states and 76 transitions. [2018-07-23 13:52:22,884 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2018-07-23 13:52:22,884 INFO L78 Accepts]: Start accepts. Automaton has 72 states. Word has length 72 [2018-07-23 13:52:22,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:22,885 INFO L225 Difference]: With dead ends: 76 [2018-07-23 13:52:22,885 INFO L226 Difference]: Without dead ends: 74 [2018-07-23 13:52:22,886 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=2556, Invalid=2556, Unknown=0, NotChecked=0, Total=5112 [2018-07-23 13:52:22,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-07-23 13:52:22,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2018-07-23 13:52:22,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-07-23 13:52:22,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 74 transitions. [2018-07-23 13:52:22,890 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 74 transitions. Word has length 72 [2018-07-23 13:52:22,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:22,891 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 74 transitions. [2018-07-23 13:52:22,891 INFO L472 AbstractCegarLoop]: Interpolant automaton has 72 states. [2018-07-23 13:52:22,891 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 74 transitions. [2018-07-23 13:52:22,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-07-23 13:52:22,892 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:22,892 INFO L357 BasicCegarLoop]: trace histogram [70, 1, 1, 1] [2018-07-23 13:52:22,892 INFO L414 AbstractCegarLoop]: === Iteration 71 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:22,892 INFO L82 PathProgramCache]: Analyzing trace with hash -926165044, now seen corresponding path program 70 times [2018-07-23 13:52:22,892 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:22,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:23,570 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 13:52:23,570 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:23,570 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [72] total 72 [2018-07-23 13:52:23,570 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:23,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:23,571 INFO L185 omatonBuilderFactory]: Interpolants [13986#true, 13987#false, 13988#(and (not (= main_x main_y)) (<= main_a_x 0)), 13989#(and (not (= main_x main_y)) (<= main_a_x 1)), 13990#(and (not (= main_x main_y)) (<= main_a_x 2)), 13991#(and (not (= main_x main_y)) (<= main_a_x 3)), 13992#(and (<= main_a_x 4) (not (= main_x main_y))), 13993#(and (<= main_a_x 5) (not (= main_x main_y))), 13994#(and (not (= main_x main_y)) (<= main_a_x 6)), 13995#(and (<= main_a_x 7) (not (= main_x main_y))), 13996#(and (not (= main_x main_y)) (<= main_a_x 8)), 13997#(and (not (= main_x main_y)) (<= main_a_x 9)), 13998#(and (<= main_a_x 10) (not (= main_x main_y))), 13999#(and (not (= main_x main_y)) (<= main_a_x 11)), 14000#(and (not (= main_x main_y)) (<= main_a_x 12)), 14001#(and (<= main_a_x 13) (not (= main_x main_y))), 14002#(and (not (= main_x main_y)) (<= main_a_x 14)), 14003#(and (<= main_a_x 15) (not (= main_x main_y))), 14004#(and (not (= main_x main_y)) (<= main_a_x 16)), 14005#(and (not (= main_x main_y)) (<= main_a_x 17)), 14006#(and (<= main_a_x 18) (not (= main_x main_y))), 14007#(and (<= main_a_x 19) (not (= main_x main_y))), 14008#(and (not (= main_x main_y)) (<= main_a_x 20)), 14009#(and (not (= main_x main_y)) (<= main_a_x 21)), 14010#(and (not (= main_x main_y)) (<= main_a_x 22)), 14011#(and (<= main_a_x 23) (not (= main_x main_y))), 14012#(and (not (= main_x main_y)) (<= main_a_x 24)), 14013#(and (<= main_a_x 25) (not (= main_x main_y))), 14014#(and (not (= main_x main_y)) (<= main_a_x 26)), 14015#(and (not (= main_x main_y)) (<= main_a_x 27)), 14016#(and (not (= main_x main_y)) (<= main_a_x 28)), 14017#(and (not (= main_x main_y)) (<= main_a_x 29)), 14018#(and (<= main_a_x 30) (not (= main_x main_y))), 14019#(and (<= main_a_x 31) (not (= main_x main_y))), 14020#(and (not (= main_x main_y)) (<= main_a_x 32)), 14021#(and (not (= main_x main_y)) (<= main_a_x 33)), 14022#(and (not (= main_x main_y)) (<= main_a_x 34)), 14023#(and (<= main_a_x 35) (not (= main_x main_y))), 14024#(and (not (= main_x main_y)) (<= main_a_x 36)), 14025#(and (<= main_a_x 37) (not (= main_x main_y))), 14026#(and (not (= main_x main_y)) (<= main_a_x 38)), 14027#(and (<= main_a_x 39) (not (= main_x main_y))), 14028#(and (<= main_a_x 40) (not (= main_x main_y))), 14029#(and (not (= main_x main_y)) (<= main_a_x 41)), 14030#(and (not (= main_x main_y)) (<= main_a_x 42)), 14031#(and (<= main_a_x 43) (not (= main_x main_y))), 14032#(and (<= main_a_x 44) (not (= main_x main_y))), 14033#(and (<= main_a_x 45) (not (= main_x main_y))), 14034#(and (<= main_a_x 46) (not (= main_x main_y))), 14035#(and (<= main_a_x 47) (not (= main_x main_y))), 14036#(and (<= main_a_x 48) (not (= main_x main_y))), 14037#(and (not (= main_x main_y)) (<= main_a_x 49)), 14038#(and (not (= main_x main_y)) (<= main_a_x 50)), 14039#(and (<= main_a_x 51) (not (= main_x main_y))), 14040#(and (not (= main_x main_y)) (<= main_a_x 52)), 14041#(and (<= main_a_x 53) (not (= main_x main_y))), 14042#(and (<= main_a_x 54) (not (= main_x main_y))), 14043#(and (not (= main_x main_y)) (<= main_a_x 55)), 14044#(and (not (= main_x main_y)) (<= main_a_x 56)), 14045#(and (not (= main_x main_y)) (<= main_a_x 57)), 14046#(and (not (= main_x main_y)) (<= main_a_x 58)), 14047#(and (not (= main_x main_y)) (<= main_a_x 59)), 14048#(and (<= main_a_x 60) (not (= main_x main_y))), 14049#(and (not (= main_x main_y)) (<= main_a_x 61)), 14050#(and (not (= main_x main_y)) (<= main_a_x 62)), 14051#(and (<= main_a_x 63) (not (= main_x main_y))), 14052#(and (<= main_a_x 64) (not (= main_x main_y))), 14053#(and (<= main_a_x 65) (not (= main_x main_y))), 14054#(and (<= main_a_x 66) (not (= main_x main_y))), 14055#(and (<= main_a_x 67) (not (= main_x main_y))), 14056#(and (not (= main_x main_y)) (<= main_a_x 68)), 14057#(and (<= main_a_x 69) (not (= main_x main_y))), 14058#(<= main_a_x 70)] [2018-07-23 13:52:23,571 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 13:52:23,571 INFO L450 AbstractCegarLoop]: Interpolant automaton has 73 states [2018-07-23 13:52:23,572 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2018-07-23 13:52:23,572 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2628, Invalid=2628, Unknown=0, NotChecked=0, Total=5256 [2018-07-23 13:52:23,573 INFO L87 Difference]: Start difference. First operand 74 states and 74 transitions. Second operand 73 states. [2018-07-23 13:52:23,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:23,620 INFO L93 Difference]: Finished difference Result 77 states and 77 transitions. [2018-07-23 13:52:23,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2018-07-23 13:52:23,620 INFO L78 Accepts]: Start accepts. Automaton has 73 states. Word has length 73 [2018-07-23 13:52:23,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:23,621 INFO L225 Difference]: With dead ends: 77 [2018-07-23 13:52:23,621 INFO L226 Difference]: Without dead ends: 75 [2018-07-23 13:52:23,622 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 13:52:23,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-07-23 13:52:23,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2018-07-23 13:52:23,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-07-23 13:52:23,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 75 transitions. [2018-07-23 13:52:23,627 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 75 transitions. Word has length 73 [2018-07-23 13:52:23,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:23,627 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 75 transitions. [2018-07-23 13:52:23,627 INFO L472 AbstractCegarLoop]: Interpolant automaton has 73 states. [2018-07-23 13:52:23,627 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 75 transitions. [2018-07-23 13:52:23,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-07-23 13:52:23,628 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:23,628 INFO L357 BasicCegarLoop]: trace histogram [71, 1, 1, 1] [2018-07-23 13:52:23,628 INFO L414 AbstractCegarLoop]: === Iteration 72 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:23,628 INFO L82 PathProgramCache]: Analyzing trace with hash 1353670087, now seen corresponding path program 71 times [2018-07-23 13:52:23,629 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:23,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:24,182 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 13:52:24,182 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:24,183 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [73] total 73 [2018-07-23 13:52:24,183 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:24,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:24,183 INFO L185 omatonBuilderFactory]: Interpolants [14363#true, 14364#false, 14365#(and (not (= main_x main_y)) (<= main_a_x 0)), 14366#(and (not (= main_x main_y)) (<= main_a_x 1)), 14367#(and (not (= main_x main_y)) (<= main_a_x 2)), 14368#(and (not (= main_x main_y)) (<= main_a_x 3)), 14369#(and (<= main_a_x 4) (not (= main_x main_y))), 14370#(and (<= main_a_x 5) (not (= main_x main_y))), 14371#(and (not (= main_x main_y)) (<= main_a_x 6)), 14372#(and (<= main_a_x 7) (not (= main_x main_y))), 14373#(and (not (= main_x main_y)) (<= main_a_x 8)), 14374#(and (not (= main_x main_y)) (<= main_a_x 9)), 14375#(and (<= main_a_x 10) (not (= main_x main_y))), 14376#(and (not (= main_x main_y)) (<= main_a_x 11)), 14377#(and (not (= main_x main_y)) (<= main_a_x 12)), 14378#(and (<= main_a_x 13) (not (= main_x main_y))), 14379#(and (not (= main_x main_y)) (<= main_a_x 14)), 14380#(and (<= main_a_x 15) (not (= main_x main_y))), 14381#(and (not (= main_x main_y)) (<= main_a_x 16)), 14382#(and (not (= main_x main_y)) (<= main_a_x 17)), 14383#(and (<= main_a_x 18) (not (= main_x main_y))), 14384#(and (<= main_a_x 19) (not (= main_x main_y))), 14385#(and (not (= main_x main_y)) (<= main_a_x 20)), 14386#(and (not (= main_x main_y)) (<= main_a_x 21)), 14387#(and (not (= main_x main_y)) (<= main_a_x 22)), 14388#(and (<= main_a_x 23) (not (= main_x main_y))), 14389#(and (not (= main_x main_y)) (<= main_a_x 24)), 14390#(and (<= main_a_x 25) (not (= main_x main_y))), 14391#(and (not (= main_x main_y)) (<= main_a_x 26)), 14392#(and (not (= main_x main_y)) (<= main_a_x 27)), 14393#(and (not (= main_x main_y)) (<= main_a_x 28)), 14394#(and (not (= main_x main_y)) (<= main_a_x 29)), 14395#(and (<= main_a_x 30) (not (= main_x main_y))), 14396#(and (<= main_a_x 31) (not (= main_x main_y))), 14397#(and (not (= main_x main_y)) (<= main_a_x 32)), 14398#(and (not (= main_x main_y)) (<= main_a_x 33)), 14399#(and (not (= main_x main_y)) (<= main_a_x 34)), 14400#(and (<= main_a_x 35) (not (= main_x main_y))), 14401#(and (not (= main_x main_y)) (<= main_a_x 36)), 14402#(and (<= main_a_x 37) (not (= main_x main_y))), 14403#(and (not (= main_x main_y)) (<= main_a_x 38)), 14404#(and (<= main_a_x 39) (not (= main_x main_y))), 14405#(and (<= main_a_x 40) (not (= main_x main_y))), 14406#(and (not (= main_x main_y)) (<= main_a_x 41)), 14407#(and (not (= main_x main_y)) (<= main_a_x 42)), 14408#(and (<= main_a_x 43) (not (= main_x main_y))), 14409#(and (<= main_a_x 44) (not (= main_x main_y))), 14410#(and (<= main_a_x 45) (not (= main_x main_y))), 14411#(and (<= main_a_x 46) (not (= main_x main_y))), 14412#(and (<= main_a_x 47) (not (= main_x main_y))), 14413#(and (<= main_a_x 48) (not (= main_x main_y))), 14414#(and (not (= main_x main_y)) (<= main_a_x 49)), 14415#(and (not (= main_x main_y)) (<= main_a_x 50)), 14416#(and (<= main_a_x 51) (not (= main_x main_y))), 14417#(and (not (= main_x main_y)) (<= main_a_x 52)), 14418#(and (<= main_a_x 53) (not (= main_x main_y))), 14419#(and (<= main_a_x 54) (not (= main_x main_y))), 14420#(and (not (= main_x main_y)) (<= main_a_x 55)), 14421#(and (not (= main_x main_y)) (<= main_a_x 56)), 14422#(and (not (= main_x main_y)) (<= main_a_x 57)), 14423#(and (not (= main_x main_y)) (<= main_a_x 58)), 14424#(and (not (= main_x main_y)) (<= main_a_x 59)), 14425#(and (<= main_a_x 60) (not (= main_x main_y))), 14426#(and (not (= main_x main_y)) (<= main_a_x 61)), 14427#(and (not (= main_x main_y)) (<= main_a_x 62)), 14428#(and (<= main_a_x 63) (not (= main_x main_y))), 14429#(and (<= main_a_x 64) (not (= main_x main_y))), 14430#(and (<= main_a_x 65) (not (= main_x main_y))), 14431#(and (<= main_a_x 66) (not (= main_x main_y))), 14432#(and (<= main_a_x 67) (not (= main_x main_y))), 14433#(and (not (= main_x main_y)) (<= main_a_x 68)), 14434#(and (<= main_a_x 69) (not (= main_x main_y))), 14435#(and (<= main_a_x 70) (not (= main_x main_y))), 14436#(<= main_a_x 71)] [2018-07-23 13:52:24,184 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 13:52:24,184 INFO L450 AbstractCegarLoop]: Interpolant automaton has 74 states [2018-07-23 13:52:24,184 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2018-07-23 13:52:24,185 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2701, Invalid=2701, Unknown=0, NotChecked=0, Total=5402 [2018-07-23 13:52:24,185 INFO L87 Difference]: Start difference. First operand 75 states and 75 transitions. Second operand 74 states. [2018-07-23 13:52:24,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:24,247 INFO L93 Difference]: Finished difference Result 78 states and 78 transitions. [2018-07-23 13:52:24,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2018-07-23 13:52:24,248 INFO L78 Accepts]: Start accepts. Automaton has 74 states. Word has length 74 [2018-07-23 13:52:24,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:24,249 INFO L225 Difference]: With dead ends: 78 [2018-07-23 13:52:24,249 INFO L226 Difference]: Without dead ends: 76 [2018-07-23 13:52:24,249 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=2701, Invalid=2701, Unknown=0, NotChecked=0, Total=5402 [2018-07-23 13:52:24,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-07-23 13:52:24,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2018-07-23 13:52:24,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2018-07-23 13:52:24,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 76 transitions. [2018-07-23 13:52:24,254 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 76 transitions. Word has length 74 [2018-07-23 13:52:24,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:24,255 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 76 transitions. [2018-07-23 13:52:24,255 INFO L472 AbstractCegarLoop]: Interpolant automaton has 74 states. [2018-07-23 13:52:24,255 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 76 transitions. [2018-07-23 13:52:24,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-07-23 13:52:24,255 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:24,255 INFO L357 BasicCegarLoop]: trace histogram [72, 1, 1, 1] [2018-07-23 13:52:24,256 INFO L414 AbstractCegarLoop]: === Iteration 73 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:24,256 INFO L82 PathProgramCache]: Analyzing trace with hash -985884884, now seen corresponding path program 72 times [2018-07-23 13:52:24,256 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:24,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:24,900 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 13:52:24,901 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:24,901 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [74] total 74 [2018-07-23 13:52:24,901 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:24,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:24,901 INFO L185 omatonBuilderFactory]: Interpolants [14745#true, 14746#false, 14747#(and (not (= main_x main_y)) (<= main_a_x 0)), 14748#(and (not (= main_x main_y)) (<= main_a_x 1)), 14749#(and (not (= main_x main_y)) (<= main_a_x 2)), 14750#(and (not (= main_x main_y)) (<= main_a_x 3)), 14751#(and (<= main_a_x 4) (not (= main_x main_y))), 14752#(and (<= main_a_x 5) (not (= main_x main_y))), 14753#(and (not (= main_x main_y)) (<= main_a_x 6)), 14754#(and (<= main_a_x 7) (not (= main_x main_y))), 14755#(and (not (= main_x main_y)) (<= main_a_x 8)), 14756#(and (not (= main_x main_y)) (<= main_a_x 9)), 14757#(and (<= main_a_x 10) (not (= main_x main_y))), 14758#(and (not (= main_x main_y)) (<= main_a_x 11)), 14759#(and (not (= main_x main_y)) (<= main_a_x 12)), 14760#(and (<= main_a_x 13) (not (= main_x main_y))), 14761#(and (not (= main_x main_y)) (<= main_a_x 14)), 14762#(and (<= main_a_x 15) (not (= main_x main_y))), 14763#(and (not (= main_x main_y)) (<= main_a_x 16)), 14764#(and (not (= main_x main_y)) (<= main_a_x 17)), 14765#(and (<= main_a_x 18) (not (= main_x main_y))), 14766#(and (<= main_a_x 19) (not (= main_x main_y))), 14767#(and (not (= main_x main_y)) (<= main_a_x 20)), 14768#(and (not (= main_x main_y)) (<= main_a_x 21)), 14769#(and (not (= main_x main_y)) (<= main_a_x 22)), 14770#(and (<= main_a_x 23) (not (= main_x main_y))), 14771#(and (not (= main_x main_y)) (<= main_a_x 24)), 14772#(and (<= main_a_x 25) (not (= main_x main_y))), 14773#(and (not (= main_x main_y)) (<= main_a_x 26)), 14774#(and (not (= main_x main_y)) (<= main_a_x 27)), 14775#(and (not (= main_x main_y)) (<= main_a_x 28)), 14776#(and (not (= main_x main_y)) (<= main_a_x 29)), 14777#(and (<= main_a_x 30) (not (= main_x main_y))), 14778#(and (<= main_a_x 31) (not (= main_x main_y))), 14779#(and (not (= main_x main_y)) (<= main_a_x 32)), 14780#(and (not (= main_x main_y)) (<= main_a_x 33)), 14781#(and (not (= main_x main_y)) (<= main_a_x 34)), 14782#(and (<= main_a_x 35) (not (= main_x main_y))), 14783#(and (not (= main_x main_y)) (<= main_a_x 36)), 14784#(and (<= main_a_x 37) (not (= main_x main_y))), 14785#(and (not (= main_x main_y)) (<= main_a_x 38)), 14786#(and (<= main_a_x 39) (not (= main_x main_y))), 14787#(and (<= main_a_x 40) (not (= main_x main_y))), 14788#(and (not (= main_x main_y)) (<= main_a_x 41)), 14789#(and (not (= main_x main_y)) (<= main_a_x 42)), 14790#(and (<= main_a_x 43) (not (= main_x main_y))), 14791#(and (<= main_a_x 44) (not (= main_x main_y))), 14792#(and (<= main_a_x 45) (not (= main_x main_y))), 14793#(and (<= main_a_x 46) (not (= main_x main_y))), 14794#(and (<= main_a_x 47) (not (= main_x main_y))), 14795#(and (<= main_a_x 48) (not (= main_x main_y))), 14796#(and (not (= main_x main_y)) (<= main_a_x 49)), 14797#(and (not (= main_x main_y)) (<= main_a_x 50)), 14798#(and (<= main_a_x 51) (not (= main_x main_y))), 14799#(and (not (= main_x main_y)) (<= main_a_x 52)), 14800#(and (<= main_a_x 53) (not (= main_x main_y))), 14801#(and (<= main_a_x 54) (not (= main_x main_y))), 14802#(and (not (= main_x main_y)) (<= main_a_x 55)), 14803#(and (not (= main_x main_y)) (<= main_a_x 56)), 14804#(and (not (= main_x main_y)) (<= main_a_x 57)), 14805#(and (not (= main_x main_y)) (<= main_a_x 58)), 14806#(and (not (= main_x main_y)) (<= main_a_x 59)), 14807#(and (<= main_a_x 60) (not (= main_x main_y))), 14808#(and (not (= main_x main_y)) (<= main_a_x 61)), 14809#(and (not (= main_x main_y)) (<= main_a_x 62)), 14810#(and (<= main_a_x 63) (not (= main_x main_y))), 14811#(and (<= main_a_x 64) (not (= main_x main_y))), 14812#(and (<= main_a_x 65) (not (= main_x main_y))), 14813#(and (<= main_a_x 66) (not (= main_x main_y))), 14814#(and (<= main_a_x 67) (not (= main_x main_y))), 14815#(and (not (= main_x main_y)) (<= main_a_x 68)), 14816#(and (<= main_a_x 69) (not (= main_x main_y))), 14817#(and (<= main_a_x 70) (not (= main_x main_y))), 14818#(and (<= main_a_x 71) (not (= main_x main_y))), 14819#(<= main_a_x 72)] [2018-07-23 13:52:24,902 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 13:52:24,902 INFO L450 AbstractCegarLoop]: Interpolant automaton has 75 states [2018-07-23 13:52:24,902 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2018-07-23 13:52:24,903 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2775, Invalid=2775, Unknown=0, NotChecked=0, Total=5550 [2018-07-23 13:52:24,903 INFO L87 Difference]: Start difference. First operand 76 states and 76 transitions. Second operand 75 states. [2018-07-23 13:52:24,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:24,957 INFO L93 Difference]: Finished difference Result 79 states and 79 transitions. [2018-07-23 13:52:24,957 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2018-07-23 13:52:24,957 INFO L78 Accepts]: Start accepts. Automaton has 75 states. Word has length 75 [2018-07-23 13:52:24,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:24,958 INFO L225 Difference]: With dead ends: 79 [2018-07-23 13:52:24,958 INFO L226 Difference]: Without dead ends: 77 [2018-07-23 13:52:24,959 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=2775, Invalid=2775, Unknown=0, NotChecked=0, Total=5550 [2018-07-23 13:52:24,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2018-07-23 13:52:24,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2018-07-23 13:52:24,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2018-07-23 13:52:24,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 77 transitions. [2018-07-23 13:52:24,962 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 77 transitions. Word has length 75 [2018-07-23 13:52:24,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:24,962 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 77 transitions. [2018-07-23 13:52:24,962 INFO L472 AbstractCegarLoop]: Interpolant automaton has 75 states. [2018-07-23 13:52:24,962 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 77 transitions. [2018-07-23 13:52:24,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-07-23 13:52:24,963 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:24,963 INFO L357 BasicCegarLoop]: trace histogram [73, 1, 1, 1] [2018-07-23 13:52:24,963 INFO L414 AbstractCegarLoop]: === Iteration 74 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:24,963 INFO L82 PathProgramCache]: Analyzing trace with hash -497644953, now seen corresponding path program 73 times [2018-07-23 13:52:24,963 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:25,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:25,493 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 13:52:25,493 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:25,493 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [75] total 75 [2018-07-23 13:52:25,494 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:25,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:25,494 INFO L185 omatonBuilderFactory]: Interpolants [15132#true, 15133#false, 15134#(and (not (= main_x main_y)) (<= main_a_x 0)), 15135#(and (not (= main_x main_y)) (<= main_a_x 1)), 15136#(and (not (= main_x main_y)) (<= main_a_x 2)), 15137#(and (not (= main_x main_y)) (<= main_a_x 3)), 15138#(and (<= main_a_x 4) (not (= main_x main_y))), 15139#(and (<= main_a_x 5) (not (= main_x main_y))), 15140#(and (not (= main_x main_y)) (<= main_a_x 6)), 15141#(and (<= main_a_x 7) (not (= main_x main_y))), 15142#(and (not (= main_x main_y)) (<= main_a_x 8)), 15143#(and (not (= main_x main_y)) (<= main_a_x 9)), 15144#(and (<= main_a_x 10) (not (= main_x main_y))), 15145#(and (not (= main_x main_y)) (<= main_a_x 11)), 15146#(and (not (= main_x main_y)) (<= main_a_x 12)), 15147#(and (<= main_a_x 13) (not (= main_x main_y))), 15148#(and (not (= main_x main_y)) (<= main_a_x 14)), 15149#(and (<= main_a_x 15) (not (= main_x main_y))), 15150#(and (not (= main_x main_y)) (<= main_a_x 16)), 15151#(and (not (= main_x main_y)) (<= main_a_x 17)), 15152#(and (<= main_a_x 18) (not (= main_x main_y))), 15153#(and (<= main_a_x 19) (not (= main_x main_y))), 15154#(and (not (= main_x main_y)) (<= main_a_x 20)), 15155#(and (not (= main_x main_y)) (<= main_a_x 21)), 15156#(and (not (= main_x main_y)) (<= main_a_x 22)), 15157#(and (<= main_a_x 23) (not (= main_x main_y))), 15158#(and (not (= main_x main_y)) (<= main_a_x 24)), 15159#(and (<= main_a_x 25) (not (= main_x main_y))), 15160#(and (not (= main_x main_y)) (<= main_a_x 26)), 15161#(and (not (= main_x main_y)) (<= main_a_x 27)), 15162#(and (not (= main_x main_y)) (<= main_a_x 28)), 15163#(and (not (= main_x main_y)) (<= main_a_x 29)), 15164#(and (<= main_a_x 30) (not (= main_x main_y))), 15165#(and (<= main_a_x 31) (not (= main_x main_y))), 15166#(and (not (= main_x main_y)) (<= main_a_x 32)), 15167#(and (not (= main_x main_y)) (<= main_a_x 33)), 15168#(and (not (= main_x main_y)) (<= main_a_x 34)), 15169#(and (<= main_a_x 35) (not (= main_x main_y))), 15170#(and (not (= main_x main_y)) (<= main_a_x 36)), 15171#(and (<= main_a_x 37) (not (= main_x main_y))), 15172#(and (not (= main_x main_y)) (<= main_a_x 38)), 15173#(and (<= main_a_x 39) (not (= main_x main_y))), 15174#(and (<= main_a_x 40) (not (= main_x main_y))), 15175#(and (not (= main_x main_y)) (<= main_a_x 41)), 15176#(and (not (= main_x main_y)) (<= main_a_x 42)), 15177#(and (<= main_a_x 43) (not (= main_x main_y))), 15178#(and (<= main_a_x 44) (not (= main_x main_y))), 15179#(and (<= main_a_x 45) (not (= main_x main_y))), 15180#(and (<= main_a_x 46) (not (= main_x main_y))), 15181#(and (<= main_a_x 47) (not (= main_x main_y))), 15182#(and (<= main_a_x 48) (not (= main_x main_y))), 15183#(and (not (= main_x main_y)) (<= main_a_x 49)), 15184#(and (not (= main_x main_y)) (<= main_a_x 50)), 15185#(and (<= main_a_x 51) (not (= main_x main_y))), 15186#(and (not (= main_x main_y)) (<= main_a_x 52)), 15187#(and (<= main_a_x 53) (not (= main_x main_y))), 15188#(and (<= main_a_x 54) (not (= main_x main_y))), 15189#(and (not (= main_x main_y)) (<= main_a_x 55)), 15190#(and (not (= main_x main_y)) (<= main_a_x 56)), 15191#(and (not (= main_x main_y)) (<= main_a_x 57)), 15192#(and (not (= main_x main_y)) (<= main_a_x 58)), 15193#(and (not (= main_x main_y)) (<= main_a_x 59)), 15194#(and (<= main_a_x 60) (not (= main_x main_y))), 15195#(and (not (= main_x main_y)) (<= main_a_x 61)), 15196#(and (not (= main_x main_y)) (<= main_a_x 62)), 15197#(and (<= main_a_x 63) (not (= main_x main_y))), 15198#(and (<= main_a_x 64) (not (= main_x main_y))), 15199#(and (<= main_a_x 65) (not (= main_x main_y))), 15200#(and (<= main_a_x 66) (not (= main_x main_y))), 15201#(and (<= main_a_x 67) (not (= main_x main_y))), 15202#(and (not (= main_x main_y)) (<= main_a_x 68)), 15203#(and (<= main_a_x 69) (not (= main_x main_y))), 15204#(and (<= main_a_x 70) (not (= main_x main_y))), 15205#(and (<= main_a_x 71) (not (= main_x main_y))), 15206#(and (not (= main_x main_y)) (<= main_a_x 72)), 15207#(<= main_a_x 73)] [2018-07-23 13:52:25,494 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 13:52:25,494 INFO L450 AbstractCegarLoop]: Interpolant automaton has 76 states [2018-07-23 13:52:25,495 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2018-07-23 13:52:25,495 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2850, Invalid=2850, Unknown=0, NotChecked=0, Total=5700 [2018-07-23 13:52:25,495 INFO L87 Difference]: Start difference. First operand 77 states and 77 transitions. Second operand 76 states. [2018-07-23 13:52:25,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:25,540 INFO L93 Difference]: Finished difference Result 80 states and 80 transitions. [2018-07-23 13:52:25,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2018-07-23 13:52:25,540 INFO L78 Accepts]: Start accepts. Automaton has 76 states. Word has length 76 [2018-07-23 13:52:25,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:25,541 INFO L225 Difference]: With dead ends: 80 [2018-07-23 13:52:25,541 INFO L226 Difference]: Without dead ends: 78 [2018-07-23 13:52:25,542 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=2850, Invalid=2850, Unknown=0, NotChecked=0, Total=5700 [2018-07-23 13:52:25,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2018-07-23 13:52:25,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2018-07-23 13:52:25,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2018-07-23 13:52:25,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 78 transitions. [2018-07-23 13:52:25,546 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 78 transitions. Word has length 76 [2018-07-23 13:52:25,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:25,547 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 78 transitions. [2018-07-23 13:52:25,547 INFO L472 AbstractCegarLoop]: Interpolant automaton has 76 states. [2018-07-23 13:52:25,547 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 78 transitions. [2018-07-23 13:52:25,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-07-23 13:52:25,548 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:25,548 INFO L357 BasicCegarLoop]: trace histogram [74, 1, 1, 1] [2018-07-23 13:52:25,548 INFO L414 AbstractCegarLoop]: === Iteration 75 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:25,548 INFO L82 PathProgramCache]: Analyzing trace with hash 1752891020, now seen corresponding path program 74 times [2018-07-23 13:52:25,548 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:25,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:26,372 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 13:52:26,372 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:26,372 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [76] total 76 [2018-07-23 13:52:26,372 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:26,372 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 13:52:26,373 INFO L185 omatonBuilderFactory]: Interpolants [15524#true, 15525#false, 15526#(and (not (= main_x main_y)) (<= main_a_x 0)), 15527#(and (not (= main_x main_y)) (<= main_a_x 1)), 15528#(and (not (= main_x main_y)) (<= main_a_x 2)), 15529#(and (not (= main_x main_y)) (<= main_a_x 3)), 15530#(and (<= main_a_x 4) (not (= main_x main_y))), 15531#(and (<= main_a_x 5) (not (= main_x main_y))), 15532#(and (not (= main_x main_y)) (<= main_a_x 6)), 15533#(and (<= main_a_x 7) (not (= main_x main_y))), 15534#(and (not (= main_x main_y)) (<= main_a_x 8)), 15535#(and (not (= main_x main_y)) (<= main_a_x 9)), 15536#(and (<= main_a_x 10) (not (= main_x main_y))), 15537#(and (not (= main_x main_y)) (<= main_a_x 11)), 15538#(and (not (= main_x main_y)) (<= main_a_x 12)), 15539#(and (<= main_a_x 13) (not (= main_x main_y))), 15540#(and (not (= main_x main_y)) (<= main_a_x 14)), 15541#(and (<= main_a_x 15) (not (= main_x main_y))), 15542#(and (not (= main_x main_y)) (<= main_a_x 16)), 15543#(and (not (= main_x main_y)) (<= main_a_x 17)), 15544#(and (<= main_a_x 18) (not (= main_x main_y))), 15545#(and (<= main_a_x 19) (not (= main_x main_y))), 15546#(and (not (= main_x main_y)) (<= main_a_x 20)), 15547#(and (not (= main_x main_y)) (<= main_a_x 21)), 15548#(and (not (= main_x main_y)) (<= main_a_x 22)), 15549#(and (<= main_a_x 23) (not (= main_x main_y))), 15550#(and (not (= main_x main_y)) (<= main_a_x 24)), 15551#(and (<= main_a_x 25) (not (= main_x main_y))), 15552#(and (not (= main_x main_y)) (<= main_a_x 26)), 15553#(and (not (= main_x main_y)) (<= main_a_x 27)), 15554#(and (not (= main_x main_y)) (<= main_a_x 28)), 15555#(and (not (= main_x main_y)) (<= main_a_x 29)), 15556#(and (<= main_a_x 30) (not (= main_x main_y))), 15557#(and (<= main_a_x 31) (not (= main_x main_y))), 15558#(and (not (= main_x main_y)) (<= main_a_x 32)), 15559#(and (not (= main_x main_y)) (<= main_a_x 33)), 15560#(and (not (= main_x main_y)) (<= main_a_x 34)), 15561#(and (<= main_a_x 35) (not (= main_x main_y))), 15562#(and (not (= main_x main_y)) (<= main_a_x 36)), 15563#(and (<= main_a_x 37) (not (= main_x main_y))), 15564#(and (not (= main_x main_y)) (<= main_a_x 38)), 15565#(and (<= main_a_x 39) (not (= main_x main_y))), 15566#(and (<= main_a_x 40) (not (= main_x main_y))), 15567#(and (not (= main_x main_y)) (<= main_a_x 41)), 15568#(and (not (= main_x main_y)) (<= main_a_x 42)), 15569#(and (<= main_a_x 43) (not (= main_x main_y))), 15570#(and (<= main_a_x 44) (not (= main_x main_y))), 15571#(and (<= main_a_x 45) (not (= main_x main_y))), 15572#(and (<= main_a_x 46) (not (= main_x main_y))), 15573#(and (<= main_a_x 47) (not (= main_x main_y))), 15574#(and (<= main_a_x 48) (not (= main_x main_y))), 15575#(and (not (= main_x main_y)) (<= main_a_x 49)), 15576#(and (not (= main_x main_y)) (<= main_a_x 50)), 15577#(and (<= main_a_x 51) (not (= main_x main_y))), 15578#(and (not (= main_x main_y)) (<= main_a_x 52)), 15579#(and (<= main_a_x 53) (not (= main_x main_y))), 15580#(and (<= main_a_x 54) (not (= main_x main_y))), 15581#(and (not (= main_x main_y)) (<= main_a_x 55)), 15582#(and (not (= main_x main_y)) (<= main_a_x 56)), 15583#(and (not (= main_x main_y)) (<= main_a_x 57)), 15584#(and (not (= main_x main_y)) (<= main_a_x 58)), 15585#(and (not (= main_x main_y)) (<= main_a_x 59)), 15586#(and (<= main_a_x 60) (not (= main_x main_y))), 15587#(and (not (= main_x main_y)) (<= main_a_x 61)), 15588#(and (not (= main_x main_y)) (<= main_a_x 62)), 15589#(and (<= main_a_x 63) (not (= main_x main_y))), 15590#(and (<= main_a_x 64) (not (= main_x main_y))), 15591#(and (<= main_a_x 65) (not (= main_x main_y))), 15592#(and (<= main_a_x 66) (not (= main_x main_y))), 15593#(and (<= main_a_x 67) (not (= main_x main_y))), 15594#(and (not (= main_x main_y)) (<= main_a_x 68)), 15595#(and (<= main_a_x 69) (not (= main_x main_y))), 15596#(and (<= main_a_x 70) (not (= main_x main_y))), 15597#(and (<= main_a_x 71) (not (= main_x main_y))), 15598#(and (not (= main_x main_y)) (<= main_a_x 72)), 15599#(and (not (= main_x main_y)) (<= main_a_x 73)), 15600#(<= main_a_x 74)] [2018-07-23 13:52:26,373 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 13:52:26,373 INFO L450 AbstractCegarLoop]: Interpolant automaton has 77 states [2018-07-23 13:52:26,374 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2018-07-23 13:52:26,374 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2926, Invalid=2926, Unknown=0, NotChecked=0, Total=5852 [2018-07-23 13:52:26,374 INFO L87 Difference]: Start difference. First operand 78 states and 78 transitions. Second operand 77 states. [2018-07-23 13:52:26,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:26,422 INFO L93 Difference]: Finished difference Result 81 states and 81 transitions. [2018-07-23 13:52:26,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2018-07-23 13:52:26,422 INFO L78 Accepts]: Start accepts. Automaton has 77 states. Word has length 77 [2018-07-23 13:52:26,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:26,423 INFO L225 Difference]: With dead ends: 81 [2018-07-23 13:52:26,423 INFO L226 Difference]: Without dead ends: 79 [2018-07-23 13:52:26,423 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=2926, Invalid=2926, Unknown=0, NotChecked=0, Total=5852 [2018-07-23 13:52:26,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2018-07-23 13:52:26,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2018-07-23 13:52:26,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-07-23 13:52:26,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 79 transitions. [2018-07-23 13:52:26,428 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 79 transitions. Word has length 77 [2018-07-23 13:52:26,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:26,428 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 79 transitions. [2018-07-23 13:52:26,429 INFO L472 AbstractCegarLoop]: Interpolant automaton has 77 states. [2018-07-23 13:52:26,429 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 79 transitions. [2018-07-23 13:52:26,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-07-23 13:52:26,429 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:26,429 INFO L357 BasicCegarLoop]: trace histogram [75, 1, 1, 1] [2018-07-23 13:52:26,429 INFO L414 AbstractCegarLoop]: === Iteration 76 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:26,430 INFO L82 PathProgramCache]: Analyzing trace with hash -1494937849, now seen corresponding path program 75 times [2018-07-23 13:52:26,430 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:26,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:27,161 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 13:52:27,161 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:27,162 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [77] total 77 [2018-07-23 13:52:27,162 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:27,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:27,162 INFO L185 omatonBuilderFactory]: Interpolants [15921#true, 15922#false, 15923#(and (not (= main_x main_y)) (<= main_a_x 0)), 15924#(and (not (= main_x main_y)) (<= main_a_x 1)), 15925#(and (not (= main_x main_y)) (<= main_a_x 2)), 15926#(and (not (= main_x main_y)) (<= main_a_x 3)), 15927#(and (<= main_a_x 4) (not (= main_x main_y))), 15928#(and (<= main_a_x 5) (not (= main_x main_y))), 15929#(and (not (= main_x main_y)) (<= main_a_x 6)), 15930#(and (<= main_a_x 7) (not (= main_x main_y))), 15931#(and (not (= main_x main_y)) (<= main_a_x 8)), 15932#(and (not (= main_x main_y)) (<= main_a_x 9)), 15933#(and (<= main_a_x 10) (not (= main_x main_y))), 15934#(and (not (= main_x main_y)) (<= main_a_x 11)), 15935#(and (not (= main_x main_y)) (<= main_a_x 12)), 15936#(and (<= main_a_x 13) (not (= main_x main_y))), 15937#(and (not (= main_x main_y)) (<= main_a_x 14)), 15938#(and (<= main_a_x 15) (not (= main_x main_y))), 15939#(and (not (= main_x main_y)) (<= main_a_x 16)), 15940#(and (not (= main_x main_y)) (<= main_a_x 17)), 15941#(and (<= main_a_x 18) (not (= main_x main_y))), 15942#(and (<= main_a_x 19) (not (= main_x main_y))), 15943#(and (not (= main_x main_y)) (<= main_a_x 20)), 15944#(and (not (= main_x main_y)) (<= main_a_x 21)), 15945#(and (not (= main_x main_y)) (<= main_a_x 22)), 15946#(and (<= main_a_x 23) (not (= main_x main_y))), 15947#(and (not (= main_x main_y)) (<= main_a_x 24)), 15948#(and (<= main_a_x 25) (not (= main_x main_y))), 15949#(and (not (= main_x main_y)) (<= main_a_x 26)), 15950#(and (not (= main_x main_y)) (<= main_a_x 27)), 15951#(and (not (= main_x main_y)) (<= main_a_x 28)), 15952#(and (not (= main_x main_y)) (<= main_a_x 29)), 15953#(and (<= main_a_x 30) (not (= main_x main_y))), 15954#(and (<= main_a_x 31) (not (= main_x main_y))), 15955#(and (not (= main_x main_y)) (<= main_a_x 32)), 15956#(and (not (= main_x main_y)) (<= main_a_x 33)), 15957#(and (not (= main_x main_y)) (<= main_a_x 34)), 15958#(and (<= main_a_x 35) (not (= main_x main_y))), 15959#(and (not (= main_x main_y)) (<= main_a_x 36)), 15960#(and (<= main_a_x 37) (not (= main_x main_y))), 15961#(and (not (= main_x main_y)) (<= main_a_x 38)), 15962#(and (<= main_a_x 39) (not (= main_x main_y))), 15963#(and (<= main_a_x 40) (not (= main_x main_y))), 15964#(and (not (= main_x main_y)) (<= main_a_x 41)), 15965#(and (not (= main_x main_y)) (<= main_a_x 42)), 15966#(and (<= main_a_x 43) (not (= main_x main_y))), 15967#(and (<= main_a_x 44) (not (= main_x main_y))), 15968#(and (<= main_a_x 45) (not (= main_x main_y))), 15969#(and (<= main_a_x 46) (not (= main_x main_y))), 15970#(and (<= main_a_x 47) (not (= main_x main_y))), 15971#(and (<= main_a_x 48) (not (= main_x main_y))), 15972#(and (not (= main_x main_y)) (<= main_a_x 49)), 15973#(and (not (= main_x main_y)) (<= main_a_x 50)), 15974#(and (<= main_a_x 51) (not (= main_x main_y))), 15975#(and (not (= main_x main_y)) (<= main_a_x 52)), 15976#(and (<= main_a_x 53) (not (= main_x main_y))), 15977#(and (<= main_a_x 54) (not (= main_x main_y))), 15978#(and (not (= main_x main_y)) (<= main_a_x 55)), 15979#(and (not (= main_x main_y)) (<= main_a_x 56)), 15980#(and (not (= main_x main_y)) (<= main_a_x 57)), 15981#(and (not (= main_x main_y)) (<= main_a_x 58)), 15982#(and (not (= main_x main_y)) (<= main_a_x 59)), 15983#(and (<= main_a_x 60) (not (= main_x main_y))), 15984#(and (not (= main_x main_y)) (<= main_a_x 61)), 15985#(and (not (= main_x main_y)) (<= main_a_x 62)), 15986#(and (<= main_a_x 63) (not (= main_x main_y))), 15987#(and (<= main_a_x 64) (not (= main_x main_y))), 15988#(and (<= main_a_x 65) (not (= main_x main_y))), 15989#(and (<= main_a_x 66) (not (= main_x main_y))), 15990#(and (<= main_a_x 67) (not (= main_x main_y))), 15991#(and (not (= main_x main_y)) (<= main_a_x 68)), 15992#(and (<= main_a_x 69) (not (= main_x main_y))), 15993#(and (<= main_a_x 70) (not (= main_x main_y))), 15994#(and (<= main_a_x 71) (not (= main_x main_y))), 15995#(and (not (= main_x main_y)) (<= main_a_x 72)), 15996#(and (not (= main_x main_y)) (<= main_a_x 73)), 15997#(and (<= main_a_x 74) (not (= main_x main_y))), 15998#(<= main_a_x 75)] [2018-07-23 13:52:27,162 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 13:52:27,162 INFO L450 AbstractCegarLoop]: Interpolant automaton has 78 states [2018-07-23 13:52:27,163 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2018-07-23 13:52:27,163 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3003, Invalid=3003, Unknown=0, NotChecked=0, Total=6006 [2018-07-23 13:52:27,163 INFO L87 Difference]: Start difference. First operand 79 states and 79 transitions. Second operand 78 states. [2018-07-23 13:52:27,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:27,211 INFO L93 Difference]: Finished difference Result 82 states and 82 transitions. [2018-07-23 13:52:27,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2018-07-23 13:52:27,211 INFO L78 Accepts]: Start accepts. Automaton has 78 states. Word has length 78 [2018-07-23 13:52:27,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:27,212 INFO L225 Difference]: With dead ends: 82 [2018-07-23 13:52:27,212 INFO L226 Difference]: Without dead ends: 80 [2018-07-23 13:52:27,212 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 13:52:27,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2018-07-23 13:52:27,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2018-07-23 13:52:27,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2018-07-23 13:52:27,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 80 transitions. [2018-07-23 13:52:27,216 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 80 transitions. Word has length 78 [2018-07-23 13:52:27,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:27,216 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 80 transitions. [2018-07-23 13:52:27,216 INFO L472 AbstractCegarLoop]: Interpolant automaton has 78 states. [2018-07-23 13:52:27,216 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 80 transitions. [2018-07-23 13:52:27,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-07-23 13:52:27,216 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:27,216 INFO L357 BasicCegarLoop]: trace histogram [76, 1, 1, 1] [2018-07-23 13:52:27,217 INFO L414 AbstractCegarLoop]: === Iteration 77 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:27,217 INFO L82 PathProgramCache]: Analyzing trace with hash 901582316, now seen corresponding path program 76 times [2018-07-23 13:52:27,217 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:27,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:27,741 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 13:52:27,741 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:27,741 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [78] total 78 [2018-07-23 13:52:27,741 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:27,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:27,742 INFO L185 omatonBuilderFactory]: Interpolants [16384#(and (not (= main_x main_y)) (<= main_a_x 59)), 16385#(and (<= main_a_x 60) (not (= main_x main_y))), 16386#(and (not (= main_x main_y)) (<= main_a_x 61)), 16387#(and (not (= main_x main_y)) (<= main_a_x 62)), 16388#(and (<= main_a_x 63) (not (= main_x main_y))), 16389#(and (<= main_a_x 64) (not (= main_x main_y))), 16390#(and (<= main_a_x 65) (not (= main_x main_y))), 16391#(and (<= main_a_x 66) (not (= main_x main_y))), 16392#(and (<= main_a_x 67) (not (= main_x main_y))), 16393#(and (not (= main_x main_y)) (<= main_a_x 68)), 16394#(and (<= main_a_x 69) (not (= main_x main_y))), 16395#(and (<= main_a_x 70) (not (= main_x main_y))), 16396#(and (<= main_a_x 71) (not (= main_x main_y))), 16397#(and (not (= main_x main_y)) (<= main_a_x 72)), 16398#(and (not (= main_x main_y)) (<= main_a_x 73)), 16399#(and (<= main_a_x 74) (not (= main_x main_y))), 16400#(and (<= main_a_x 75) (not (= main_x main_y))), 16401#(<= main_a_x 76), 16323#true, 16324#false, 16325#(and (not (= main_x main_y)) (<= main_a_x 0)), 16326#(and (not (= main_x main_y)) (<= main_a_x 1)), 16327#(and (not (= main_x main_y)) (<= main_a_x 2)), 16328#(and (not (= main_x main_y)) (<= main_a_x 3)), 16329#(and (<= main_a_x 4) (not (= main_x main_y))), 16330#(and (<= main_a_x 5) (not (= main_x main_y))), 16331#(and (not (= main_x main_y)) (<= main_a_x 6)), 16332#(and (<= main_a_x 7) (not (= main_x main_y))), 16333#(and (not (= main_x main_y)) (<= main_a_x 8)), 16334#(and (not (= main_x main_y)) (<= main_a_x 9)), 16335#(and (<= main_a_x 10) (not (= main_x main_y))), 16336#(and (not (= main_x main_y)) (<= main_a_x 11)), 16337#(and (not (= main_x main_y)) (<= main_a_x 12)), 16338#(and (<= main_a_x 13) (not (= main_x main_y))), 16339#(and (not (= main_x main_y)) (<= main_a_x 14)), 16340#(and (<= main_a_x 15) (not (= main_x main_y))), 16341#(and (not (= main_x main_y)) (<= main_a_x 16)), 16342#(and (not (= main_x main_y)) (<= main_a_x 17)), 16343#(and (<= main_a_x 18) (not (= main_x main_y))), 16344#(and (<= main_a_x 19) (not (= main_x main_y))), 16345#(and (not (= main_x main_y)) (<= main_a_x 20)), 16346#(and (not (= main_x main_y)) (<= main_a_x 21)), 16347#(and (not (= main_x main_y)) (<= main_a_x 22)), 16348#(and (<= main_a_x 23) (not (= main_x main_y))), 16349#(and (not (= main_x main_y)) (<= main_a_x 24)), 16350#(and (<= main_a_x 25) (not (= main_x main_y))), 16351#(and (not (= main_x main_y)) (<= main_a_x 26)), 16352#(and (not (= main_x main_y)) (<= main_a_x 27)), 16353#(and (not (= main_x main_y)) (<= main_a_x 28)), 16354#(and (not (= main_x main_y)) (<= main_a_x 29)), 16355#(and (<= main_a_x 30) (not (= main_x main_y))), 16356#(and (<= main_a_x 31) (not (= main_x main_y))), 16357#(and (not (= main_x main_y)) (<= main_a_x 32)), 16358#(and (not (= main_x main_y)) (<= main_a_x 33)), 16359#(and (not (= main_x main_y)) (<= main_a_x 34)), 16360#(and (<= main_a_x 35) (not (= main_x main_y))), 16361#(and (not (= main_x main_y)) (<= main_a_x 36)), 16362#(and (<= main_a_x 37) (not (= main_x main_y))), 16363#(and (not (= main_x main_y)) (<= main_a_x 38)), 16364#(and (<= main_a_x 39) (not (= main_x main_y))), 16365#(and (<= main_a_x 40) (not (= main_x main_y))), 16366#(and (not (= main_x main_y)) (<= main_a_x 41)), 16367#(and (not (= main_x main_y)) (<= main_a_x 42)), 16368#(and (<= main_a_x 43) (not (= main_x main_y))), 16369#(and (<= main_a_x 44) (not (= main_x main_y))), 16370#(and (<= main_a_x 45) (not (= main_x main_y))), 16371#(and (<= main_a_x 46) (not (= main_x main_y))), 16372#(and (<= main_a_x 47) (not (= main_x main_y))), 16373#(and (<= main_a_x 48) (not (= main_x main_y))), 16374#(and (not (= main_x main_y)) (<= main_a_x 49)), 16375#(and (not (= main_x main_y)) (<= main_a_x 50)), 16376#(and (<= main_a_x 51) (not (= main_x main_y))), 16377#(and (not (= main_x main_y)) (<= main_a_x 52)), 16378#(and (<= main_a_x 53) (not (= main_x main_y))), 16379#(and (<= main_a_x 54) (not (= main_x main_y))), 16380#(and (not (= main_x main_y)) (<= main_a_x 55)), 16381#(and (not (= main_x main_y)) (<= main_a_x 56)), 16382#(and (not (= main_x main_y)) (<= main_a_x 57)), 16383#(and (not (= main_x main_y)) (<= main_a_x 58))] [2018-07-23 13:52:27,742 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 13:52:27,742 INFO L450 AbstractCegarLoop]: Interpolant automaton has 79 states [2018-07-23 13:52:27,742 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2018-07-23 13:52:27,743 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3081, Invalid=3081, Unknown=0, NotChecked=0, Total=6162 [2018-07-23 13:52:27,743 INFO L87 Difference]: Start difference. First operand 80 states and 80 transitions. Second operand 79 states. [2018-07-23 13:52:27,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:27,780 INFO L93 Difference]: Finished difference Result 83 states and 83 transitions. [2018-07-23 13:52:27,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2018-07-23 13:52:27,780 INFO L78 Accepts]: Start accepts. Automaton has 79 states. Word has length 79 [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: 83 [2018-07-23 13:52:27,781 INFO L226 Difference]: Without dead ends: 81 [2018-07-23 13:52:27,781 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3081, Invalid=3081, Unknown=0, NotChecked=0, Total=6162 [2018-07-23 13:52:27,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2018-07-23 13:52:27,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2018-07-23 13:52:27,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2018-07-23 13:52:27,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 81 transitions. [2018-07-23 13:52:27,785 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 81 transitions. Word has length 79 [2018-07-23 13:52:27,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:27,785 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 81 transitions. [2018-07-23 13:52:27,785 INFO L472 AbstractCegarLoop]: Interpolant automaton has 79 states. [2018-07-23 13:52:27,785 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 81 transitions. [2018-07-23 13:52:27,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-07-23 13:52:27,786 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:27,786 INFO L357 BasicCegarLoop]: trace histogram [77, 1, 1, 1] [2018-07-23 13:52:27,786 INFO L414 AbstractCegarLoop]: === Iteration 78 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:27,786 INFO L82 PathProgramCache]: Analyzing trace with hash -2115703897, now seen corresponding path program 77 times [2018-07-23 13:52:27,787 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:27,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:28,587 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 13:52:28,587 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:28,588 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [79] total 79 [2018-07-23 13:52:28,588 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:28,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:28,588 INFO L185 omatonBuilderFactory]: Interpolants [16768#(and (not (= main_x main_y)) (<= main_a_x 36)), 16769#(and (<= main_a_x 37) (not (= main_x main_y))), 16770#(and (not (= main_x main_y)) (<= main_a_x 38)), 16771#(and (<= main_a_x 39) (not (= main_x main_y))), 16772#(and (<= main_a_x 40) (not (= main_x main_y))), 16773#(and (not (= main_x main_y)) (<= main_a_x 41)), 16774#(and (not (= main_x main_y)) (<= main_a_x 42)), 16775#(and (<= main_a_x 43) (not (= main_x main_y))), 16776#(and (<= main_a_x 44) (not (= main_x main_y))), 16777#(and (<= main_a_x 45) (not (= main_x main_y))), 16778#(and (<= main_a_x 46) (not (= main_x main_y))), 16779#(and (<= main_a_x 47) (not (= main_x main_y))), 16780#(and (<= main_a_x 48) (not (= main_x main_y))), 16781#(and (not (= main_x main_y)) (<= main_a_x 49)), 16782#(and (not (= main_x main_y)) (<= main_a_x 50)), 16783#(and (<= main_a_x 51) (not (= main_x main_y))), 16784#(and (not (= main_x main_y)) (<= main_a_x 52)), 16785#(and (<= main_a_x 53) (not (= main_x main_y))), 16786#(and (<= main_a_x 54) (not (= main_x main_y))), 16787#(and (not (= main_x main_y)) (<= main_a_x 55)), 16788#(and (not (= main_x main_y)) (<= main_a_x 56)), 16789#(and (not (= main_x main_y)) (<= main_a_x 57)), 16790#(and (not (= main_x main_y)) (<= main_a_x 58)), 16791#(and (not (= main_x main_y)) (<= main_a_x 59)), 16792#(and (<= main_a_x 60) (not (= main_x main_y))), 16793#(and (not (= main_x main_y)) (<= main_a_x 61)), 16794#(and (not (= main_x main_y)) (<= main_a_x 62)), 16795#(and (<= main_a_x 63) (not (= main_x main_y))), 16796#(and (<= main_a_x 64) (not (= main_x main_y))), 16797#(and (<= main_a_x 65) (not (= main_x main_y))), 16798#(and (<= main_a_x 66) (not (= main_x main_y))), 16799#(and (<= main_a_x 67) (not (= main_x main_y))), 16800#(and (not (= main_x main_y)) (<= main_a_x 68)), 16801#(and (<= main_a_x 69) (not (= main_x main_y))), 16802#(and (<= main_a_x 70) (not (= main_x main_y))), 16803#(and (<= main_a_x 71) (not (= main_x main_y))), 16804#(and (not (= main_x main_y)) (<= main_a_x 72)), 16805#(and (not (= main_x main_y)) (<= main_a_x 73)), 16806#(and (<= main_a_x 74) (not (= main_x main_y))), 16807#(and (<= main_a_x 75) (not (= main_x main_y))), 16808#(and (not (= main_x main_y)) (<= main_a_x 76)), 16809#(<= main_a_x 77), 16730#true, 16731#false, 16732#(and (not (= main_x main_y)) (<= main_a_x 0)), 16733#(and (not (= main_x main_y)) (<= main_a_x 1)), 16734#(and (not (= main_x main_y)) (<= main_a_x 2)), 16735#(and (not (= main_x main_y)) (<= main_a_x 3)), 16736#(and (<= main_a_x 4) (not (= main_x main_y))), 16737#(and (<= main_a_x 5) (not (= main_x main_y))), 16738#(and (not (= main_x main_y)) (<= main_a_x 6)), 16739#(and (<= main_a_x 7) (not (= main_x main_y))), 16740#(and (not (= main_x main_y)) (<= main_a_x 8)), 16741#(and (not (= main_x main_y)) (<= main_a_x 9)), 16742#(and (<= main_a_x 10) (not (= main_x main_y))), 16743#(and (not (= main_x main_y)) (<= main_a_x 11)), 16744#(and (not (= main_x main_y)) (<= main_a_x 12)), 16745#(and (<= main_a_x 13) (not (= main_x main_y))), 16746#(and (not (= main_x main_y)) (<= main_a_x 14)), 16747#(and (<= main_a_x 15) (not (= main_x main_y))), 16748#(and (not (= main_x main_y)) (<= main_a_x 16)), 16749#(and (not (= main_x main_y)) (<= main_a_x 17)), 16750#(and (<= main_a_x 18) (not (= main_x main_y))), 16751#(and (<= main_a_x 19) (not (= main_x main_y))), 16752#(and (not (= main_x main_y)) (<= main_a_x 20)), 16753#(and (not (= main_x main_y)) (<= main_a_x 21)), 16754#(and (not (= main_x main_y)) (<= main_a_x 22)), 16755#(and (<= main_a_x 23) (not (= main_x main_y))), 16756#(and (not (= main_x main_y)) (<= main_a_x 24)), 16757#(and (<= main_a_x 25) (not (= main_x main_y))), 16758#(and (not (= main_x main_y)) (<= main_a_x 26)), 16759#(and (not (= main_x main_y)) (<= main_a_x 27)), 16760#(and (not (= main_x main_y)) (<= main_a_x 28)), 16761#(and (not (= main_x main_y)) (<= main_a_x 29)), 16762#(and (<= main_a_x 30) (not (= main_x main_y))), 16763#(and (<= main_a_x 31) (not (= main_x main_y))), 16764#(and (not (= main_x main_y)) (<= main_a_x 32)), 16765#(and (not (= main_x main_y)) (<= main_a_x 33)), 16766#(and (not (= main_x main_y)) (<= main_a_x 34)), 16767#(and (<= main_a_x 35) (not (= main_x main_y)))] [2018-07-23 13:52:28,588 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 13:52:28,589 INFO L450 AbstractCegarLoop]: Interpolant automaton has 80 states [2018-07-23 13:52:28,589 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2018-07-23 13:52:28,589 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3160, Invalid=3160, Unknown=0, NotChecked=0, Total=6320 [2018-07-23 13:52:28,590 INFO L87 Difference]: Start difference. First operand 81 states and 81 transitions. Second operand 80 states. [2018-07-23 13:52:28,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:28,624 INFO L93 Difference]: Finished difference Result 84 states and 84 transitions. [2018-07-23 13:52:28,624 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2018-07-23 13:52:28,624 INFO L78 Accepts]: Start accepts. Automaton has 80 states. Word has length 80 [2018-07-23 13:52:28,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:28,625 INFO L225 Difference]: With dead ends: 84 [2018-07-23 13:52:28,625 INFO L226 Difference]: Without dead ends: 82 [2018-07-23 13:52:28,626 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 13:52:28,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2018-07-23 13:52:28,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2018-07-23 13:52:28,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-07-23 13:52:28,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 82 transitions. [2018-07-23 13:52:28,630 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 82 transitions. Word has length 80 [2018-07-23 13:52:28,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:28,631 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 82 transitions. [2018-07-23 13:52:28,631 INFO L472 AbstractCegarLoop]: Interpolant automaton has 80 states. [2018-07-23 13:52:28,631 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 82 transitions. [2018-07-23 13:52:28,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-07-23 13:52:28,631 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:28,631 INFO L357 BasicCegarLoop]: trace histogram [78, 1, 1, 1] [2018-07-23 13:52:28,631 INFO L414 AbstractCegarLoop]: === Iteration 79 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:28,632 INFO L82 PathProgramCache]: Analyzing trace with hash -1162295988, now seen corresponding path program 78 times [2018-07-23 13:52:28,632 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:28,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:29,333 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 13:52:29,334 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:29,334 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [80] total 80 [2018-07-23 13:52:29,334 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:29,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:29,334 INFO L185 omatonBuilderFactory]: Interpolants [17152#(and (not (= main_x main_y)) (<= main_a_x 8)), 17153#(and (not (= main_x main_y)) (<= main_a_x 9)), 17154#(and (<= main_a_x 10) (not (= main_x main_y))), 17155#(and (not (= main_x main_y)) (<= main_a_x 11)), 17156#(and (not (= main_x main_y)) (<= main_a_x 12)), 17157#(and (<= main_a_x 13) (not (= main_x main_y))), 17158#(and (not (= main_x main_y)) (<= main_a_x 14)), 17159#(and (<= main_a_x 15) (not (= main_x main_y))), 17160#(and (not (= main_x main_y)) (<= main_a_x 16)), 17161#(and (not (= main_x main_y)) (<= main_a_x 17)), 17162#(and (<= main_a_x 18) (not (= main_x main_y))), 17163#(and (<= main_a_x 19) (not (= main_x main_y))), 17164#(and (not (= main_x main_y)) (<= main_a_x 20)), 17165#(and (not (= main_x main_y)) (<= main_a_x 21)), 17166#(and (not (= main_x main_y)) (<= main_a_x 22)), 17167#(and (<= main_a_x 23) (not (= main_x main_y))), 17168#(and (not (= main_x main_y)) (<= main_a_x 24)), 17169#(and (<= main_a_x 25) (not (= main_x main_y))), 17170#(and (not (= main_x main_y)) (<= main_a_x 26)), 17171#(and (not (= main_x main_y)) (<= main_a_x 27)), 17172#(and (not (= main_x main_y)) (<= main_a_x 28)), 17173#(and (not (= main_x main_y)) (<= main_a_x 29)), 17174#(and (<= main_a_x 30) (not (= main_x main_y))), 17175#(and (<= main_a_x 31) (not (= main_x main_y))), 17176#(and (not (= main_x main_y)) (<= main_a_x 32)), 17177#(and (not (= main_x main_y)) (<= main_a_x 33)), 17178#(and (not (= main_x main_y)) (<= main_a_x 34)), 17179#(and (<= main_a_x 35) (not (= main_x main_y))), 17180#(and (not (= main_x main_y)) (<= main_a_x 36)), 17181#(and (<= main_a_x 37) (not (= main_x main_y))), 17182#(and (not (= main_x main_y)) (<= main_a_x 38)), 17183#(and (<= main_a_x 39) (not (= main_x main_y))), 17184#(and (<= main_a_x 40) (not (= main_x main_y))), 17185#(and (not (= main_x main_y)) (<= main_a_x 41)), 17186#(and (not (= main_x main_y)) (<= main_a_x 42)), 17187#(and (<= main_a_x 43) (not (= main_x main_y))), 17188#(and (<= main_a_x 44) (not (= main_x main_y))), 17189#(and (<= main_a_x 45) (not (= main_x main_y))), 17190#(and (<= main_a_x 46) (not (= main_x main_y))), 17191#(and (<= main_a_x 47) (not (= main_x main_y))), 17192#(and (<= main_a_x 48) (not (= main_x main_y))), 17193#(and (not (= main_x main_y)) (<= main_a_x 49)), 17194#(and (not (= main_x main_y)) (<= main_a_x 50)), 17195#(and (<= main_a_x 51) (not (= main_x main_y))), 17196#(and (not (= main_x main_y)) (<= main_a_x 52)), 17197#(and (<= main_a_x 53) (not (= main_x main_y))), 17198#(and (<= main_a_x 54) (not (= main_x main_y))), 17199#(and (not (= main_x main_y)) (<= main_a_x 55)), 17200#(and (not (= main_x main_y)) (<= main_a_x 56)), 17201#(and (not (= main_x main_y)) (<= main_a_x 57)), 17202#(and (not (= main_x main_y)) (<= main_a_x 58)), 17203#(and (not (= main_x main_y)) (<= main_a_x 59)), 17204#(and (<= main_a_x 60) (not (= main_x main_y))), 17205#(and (not (= main_x main_y)) (<= main_a_x 61)), 17206#(and (not (= main_x main_y)) (<= main_a_x 62)), 17207#(and (<= main_a_x 63) (not (= main_x main_y))), 17208#(and (<= main_a_x 64) (not (= main_x main_y))), 17209#(and (<= main_a_x 65) (not (= main_x main_y))), 17210#(and (<= main_a_x 66) (not (= main_x main_y))), 17211#(and (<= main_a_x 67) (not (= main_x main_y))), 17212#(and (not (= main_x main_y)) (<= main_a_x 68)), 17213#(and (<= main_a_x 69) (not (= main_x main_y))), 17214#(and (<= main_a_x 70) (not (= main_x main_y))), 17215#(and (<= main_a_x 71) (not (= main_x main_y))), 17216#(and (not (= main_x main_y)) (<= main_a_x 72)), 17217#(and (not (= main_x main_y)) (<= main_a_x 73)), 17218#(and (<= main_a_x 74) (not (= main_x main_y))), 17219#(and (<= main_a_x 75) (not (= main_x main_y))), 17220#(and (not (= main_x main_y)) (<= main_a_x 76)), 17221#(and (not (= main_x main_y)) (<= main_a_x 77)), 17222#(<= main_a_x 78), 17142#true, 17143#false, 17144#(and (not (= main_x main_y)) (<= main_a_x 0)), 17145#(and (not (= main_x main_y)) (<= main_a_x 1)), 17146#(and (not (= main_x main_y)) (<= main_a_x 2)), 17147#(and (not (= main_x main_y)) (<= main_a_x 3)), 17148#(and (<= main_a_x 4) (not (= main_x main_y))), 17149#(and (<= main_a_x 5) (not (= main_x main_y))), 17150#(and (not (= main_x main_y)) (<= main_a_x 6)), 17151#(and (<= main_a_x 7) (not (= main_x main_y)))] [2018-07-23 13:52:29,335 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 13:52:29,335 INFO L450 AbstractCegarLoop]: Interpolant automaton has 81 states [2018-07-23 13:52:29,335 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2018-07-23 13:52:29,336 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3240, Invalid=3240, Unknown=0, NotChecked=0, Total=6480 [2018-07-23 13:52:29,336 INFO L87 Difference]: Start difference. First operand 82 states and 82 transitions. Second operand 81 states. [2018-07-23 13:52:29,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:29,403 INFO L93 Difference]: Finished difference Result 85 states and 85 transitions. [2018-07-23 13:52:29,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2018-07-23 13:52:29,403 INFO L78 Accepts]: Start accepts. Automaton has 81 states. Word has length 81 [2018-07-23 13:52:29,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:29,403 INFO L225 Difference]: With dead ends: 85 [2018-07-23 13:52:29,403 INFO L226 Difference]: Without dead ends: 83 [2018-07-23 13:52:29,404 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=3240, Invalid=3240, Unknown=0, NotChecked=0, Total=6480 [2018-07-23 13:52:29,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2018-07-23 13:52:29,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2018-07-23 13:52:29,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2018-07-23 13:52:29,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 83 transitions. [2018-07-23 13:52:29,409 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 83 transitions. Word has length 81 [2018-07-23 13:52:29,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:29,409 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 83 transitions. [2018-07-23 13:52:29,409 INFO L472 AbstractCegarLoop]: Interpolant automaton has 81 states. [2018-07-23 13:52:29,409 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 83 transitions. [2018-07-23 13:52:29,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-07-23 13:52:29,410 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:29,410 INFO L357 BasicCegarLoop]: trace histogram [79, 1, 1, 1] [2018-07-23 13:52:29,410 INFO L414 AbstractCegarLoop]: === Iteration 80 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:29,410 INFO L82 PathProgramCache]: Analyzing trace with hash -1671421881, now seen corresponding path program 79 times [2018-07-23 13:52:29,410 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:29,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:30,132 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 13:52:30,132 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:30,132 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [81] total 81 [2018-07-23 13:52:30,133 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:30,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:30,133 INFO L185 omatonBuilderFactory]: Interpolants [17559#true, 17560#false, 17561#(and (not (= main_x main_y)) (<= main_a_x 0)), 17562#(and (not (= main_x main_y)) (<= main_a_x 1)), 17563#(and (not (= main_x main_y)) (<= main_a_x 2)), 17564#(and (not (= main_x main_y)) (<= main_a_x 3)), 17565#(and (<= main_a_x 4) (not (= main_x main_y))), 17566#(and (<= main_a_x 5) (not (= main_x main_y))), 17567#(and (not (= main_x main_y)) (<= main_a_x 6)), 17568#(and (<= main_a_x 7) (not (= main_x main_y))), 17569#(and (not (= main_x main_y)) (<= main_a_x 8)), 17570#(and (not (= main_x main_y)) (<= main_a_x 9)), 17571#(and (<= main_a_x 10) (not (= main_x main_y))), 17572#(and (not (= main_x main_y)) (<= main_a_x 11)), 17573#(and (not (= main_x main_y)) (<= main_a_x 12)), 17574#(and (<= main_a_x 13) (not (= main_x main_y))), 17575#(and (not (= main_x main_y)) (<= main_a_x 14)), 17576#(and (<= main_a_x 15) (not (= main_x main_y))), 17577#(and (not (= main_x main_y)) (<= main_a_x 16)), 17578#(and (not (= main_x main_y)) (<= main_a_x 17)), 17579#(and (<= main_a_x 18) (not (= main_x main_y))), 17580#(and (<= main_a_x 19) (not (= main_x main_y))), 17581#(and (not (= main_x main_y)) (<= main_a_x 20)), 17582#(and (not (= main_x main_y)) (<= main_a_x 21)), 17583#(and (not (= main_x main_y)) (<= main_a_x 22)), 17584#(and (<= main_a_x 23) (not (= main_x main_y))), 17585#(and (not (= main_x main_y)) (<= main_a_x 24)), 17586#(and (<= main_a_x 25) (not (= main_x main_y))), 17587#(and (not (= main_x main_y)) (<= main_a_x 26)), 17588#(and (not (= main_x main_y)) (<= main_a_x 27)), 17589#(and (not (= main_x main_y)) (<= main_a_x 28)), 17590#(and (not (= main_x main_y)) (<= main_a_x 29)), 17591#(and (<= main_a_x 30) (not (= main_x main_y))), 17592#(and (<= main_a_x 31) (not (= main_x main_y))), 17593#(and (not (= main_x main_y)) (<= main_a_x 32)), 17594#(and (not (= main_x main_y)) (<= main_a_x 33)), 17595#(and (not (= main_x main_y)) (<= main_a_x 34)), 17596#(and (<= main_a_x 35) (not (= main_x main_y))), 17597#(and (not (= main_x main_y)) (<= main_a_x 36)), 17598#(and (<= main_a_x 37) (not (= main_x main_y))), 17599#(and (not (= main_x main_y)) (<= main_a_x 38)), 17600#(and (<= main_a_x 39) (not (= main_x main_y))), 17601#(and (<= main_a_x 40) (not (= main_x main_y))), 17602#(and (not (= main_x main_y)) (<= main_a_x 41)), 17603#(and (not (= main_x main_y)) (<= main_a_x 42)), 17604#(and (<= main_a_x 43) (not (= main_x main_y))), 17605#(and (<= main_a_x 44) (not (= main_x main_y))), 17606#(and (<= main_a_x 45) (not (= main_x main_y))), 17607#(and (<= main_a_x 46) (not (= main_x main_y))), 17608#(and (<= main_a_x 47) (not (= main_x main_y))), 17609#(and (<= main_a_x 48) (not (= main_x main_y))), 17610#(and (not (= main_x main_y)) (<= main_a_x 49)), 17611#(and (not (= main_x main_y)) (<= main_a_x 50)), 17612#(and (<= main_a_x 51) (not (= main_x main_y))), 17613#(and (not (= main_x main_y)) (<= main_a_x 52)), 17614#(and (<= main_a_x 53) (not (= main_x main_y))), 17615#(and (<= main_a_x 54) (not (= main_x main_y))), 17616#(and (not (= main_x main_y)) (<= main_a_x 55)), 17617#(and (not (= main_x main_y)) (<= main_a_x 56)), 17618#(and (not (= main_x main_y)) (<= main_a_x 57)), 17619#(and (not (= main_x main_y)) (<= main_a_x 58)), 17620#(and (not (= main_x main_y)) (<= main_a_x 59)), 17621#(and (<= main_a_x 60) (not (= main_x main_y))), 17622#(and (not (= main_x main_y)) (<= main_a_x 61)), 17623#(and (not (= main_x main_y)) (<= main_a_x 62)), 17624#(and (<= main_a_x 63) (not (= main_x main_y))), 17625#(and (<= main_a_x 64) (not (= main_x main_y))), 17626#(and (<= main_a_x 65) (not (= main_x main_y))), 17627#(and (<= main_a_x 66) (not (= main_x main_y))), 17628#(and (<= main_a_x 67) (not (= main_x main_y))), 17629#(and (not (= main_x main_y)) (<= main_a_x 68)), 17630#(and (<= main_a_x 69) (not (= main_x main_y))), 17631#(and (<= main_a_x 70) (not (= main_x main_y))), 17632#(and (<= main_a_x 71) (not (= main_x main_y))), 17633#(and (not (= main_x main_y)) (<= main_a_x 72)), 17634#(and (not (= main_x main_y)) (<= main_a_x 73)), 17635#(and (<= main_a_x 74) (not (= main_x main_y))), 17636#(and (<= main_a_x 75) (not (= main_x main_y))), 17637#(and (not (= main_x main_y)) (<= main_a_x 76)), 17638#(and (not (= main_x main_y)) (<= main_a_x 77)), 17639#(and (<= main_a_x 78) (not (= main_x main_y))), 17640#(<= main_a_x 79)] [2018-07-23 13:52:30,133 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 13:52:30,133 INFO L450 AbstractCegarLoop]: Interpolant automaton has 82 states [2018-07-23 13:52:30,134 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2018-07-23 13:52:30,134 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3321, Invalid=3321, Unknown=0, NotChecked=0, Total=6642 [2018-07-23 13:52:30,134 INFO L87 Difference]: Start difference. First operand 83 states and 83 transitions. Second operand 82 states. [2018-07-23 13:52:30,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:30,189 INFO L93 Difference]: Finished difference Result 86 states and 86 transitions. [2018-07-23 13:52:30,189 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2018-07-23 13:52:30,190 INFO L78 Accepts]: Start accepts. Automaton has 82 states. Word has length 82 [2018-07-23 13:52:30,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:30,190 INFO L225 Difference]: With dead ends: 86 [2018-07-23 13:52:30,190 INFO L226 Difference]: Without dead ends: 84 [2018-07-23 13:52:30,191 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=3321, Invalid=3321, Unknown=0, NotChecked=0, Total=6642 [2018-07-23 13:52:30,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2018-07-23 13:52:30,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2018-07-23 13:52:30,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2018-07-23 13:52:30,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 84 transitions. [2018-07-23 13:52:30,196 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 84 transitions. Word has length 82 [2018-07-23 13:52:30,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:30,197 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 84 transitions. [2018-07-23 13:52:30,197 INFO L472 AbstractCegarLoop]: Interpolant automaton has 82 states. [2018-07-23 13:52:30,197 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 84 transitions. [2018-07-23 13:52:30,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-07-23 13:52:30,198 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:30,198 INFO L357 BasicCegarLoop]: trace histogram [80, 1, 1, 1] [2018-07-23 13:52:30,198 INFO L414 AbstractCegarLoop]: === Iteration 81 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:30,198 INFO L82 PathProgramCache]: Analyzing trace with hash -274455380, now seen corresponding path program 80 times [2018-07-23 13:52:30,198 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:30,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:30,909 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 13:52:30,909 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:30,909 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [82] total 82 [2018-07-23 13:52:30,909 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:30,910 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 13:52:30,910 INFO L185 omatonBuilderFactory]: Interpolants [18048#(and (<= main_a_x 65) (not (= main_x main_y))), 18049#(and (<= main_a_x 66) (not (= main_x main_y))), 18050#(and (<= main_a_x 67) (not (= main_x main_y))), 18051#(and (not (= main_x main_y)) (<= main_a_x 68)), 18052#(and (<= main_a_x 69) (not (= main_x main_y))), 18053#(and (<= main_a_x 70) (not (= main_x main_y))), 18054#(and (<= main_a_x 71) (not (= main_x main_y))), 18055#(and (not (= main_x main_y)) (<= main_a_x 72)), 18056#(and (not (= main_x main_y)) (<= main_a_x 73)), 18057#(and (<= main_a_x 74) (not (= main_x main_y))), 18058#(and (<= main_a_x 75) (not (= main_x main_y))), 18059#(and (not (= main_x main_y)) (<= main_a_x 76)), 18060#(and (not (= main_x main_y)) (<= main_a_x 77)), 18061#(and (<= main_a_x 78) (not (= main_x main_y))), 18062#(and (<= main_a_x 79) (not (= main_x main_y))), 18063#(<= main_a_x 80), 17981#true, 17982#false, 17983#(and (not (= main_x main_y)) (<= main_a_x 0)), 17984#(and (not (= main_x main_y)) (<= main_a_x 1)), 17985#(and (not (= main_x main_y)) (<= main_a_x 2)), 17986#(and (not (= main_x main_y)) (<= main_a_x 3)), 17987#(and (<= main_a_x 4) (not (= main_x main_y))), 17988#(and (<= main_a_x 5) (not (= main_x main_y))), 17989#(and (not (= main_x main_y)) (<= main_a_x 6)), 17990#(and (<= main_a_x 7) (not (= main_x main_y))), 17991#(and (not (= main_x main_y)) (<= main_a_x 8)), 17992#(and (not (= main_x main_y)) (<= main_a_x 9)), 17993#(and (<= main_a_x 10) (not (= main_x main_y))), 17994#(and (not (= main_x main_y)) (<= main_a_x 11)), 17995#(and (not (= main_x main_y)) (<= main_a_x 12)), 17996#(and (<= main_a_x 13) (not (= main_x main_y))), 17997#(and (not (= main_x main_y)) (<= main_a_x 14)), 17998#(and (<= main_a_x 15) (not (= main_x main_y))), 17999#(and (not (= main_x main_y)) (<= main_a_x 16)), 18000#(and (not (= main_x main_y)) (<= main_a_x 17)), 18001#(and (<= main_a_x 18) (not (= main_x main_y))), 18002#(and (<= main_a_x 19) (not (= main_x main_y))), 18003#(and (not (= main_x main_y)) (<= main_a_x 20)), 18004#(and (not (= main_x main_y)) (<= main_a_x 21)), 18005#(and (not (= main_x main_y)) (<= main_a_x 22)), 18006#(and (<= main_a_x 23) (not (= main_x main_y))), 18007#(and (not (= main_x main_y)) (<= main_a_x 24)), 18008#(and (<= main_a_x 25) (not (= main_x main_y))), 18009#(and (not (= main_x main_y)) (<= main_a_x 26)), 18010#(and (not (= main_x main_y)) (<= main_a_x 27)), 18011#(and (not (= main_x main_y)) (<= main_a_x 28)), 18012#(and (not (= main_x main_y)) (<= main_a_x 29)), 18013#(and (<= main_a_x 30) (not (= main_x main_y))), 18014#(and (<= main_a_x 31) (not (= main_x main_y))), 18015#(and (not (= main_x main_y)) (<= main_a_x 32)), 18016#(and (not (= main_x main_y)) (<= main_a_x 33)), 18017#(and (not (= main_x main_y)) (<= main_a_x 34)), 18018#(and (<= main_a_x 35) (not (= main_x main_y))), 18019#(and (not (= main_x main_y)) (<= main_a_x 36)), 18020#(and (<= main_a_x 37) (not (= main_x main_y))), 18021#(and (not (= main_x main_y)) (<= main_a_x 38)), 18022#(and (<= main_a_x 39) (not (= main_x main_y))), 18023#(and (<= main_a_x 40) (not (= main_x main_y))), 18024#(and (not (= main_x main_y)) (<= main_a_x 41)), 18025#(and (not (= main_x main_y)) (<= main_a_x 42)), 18026#(and (<= main_a_x 43) (not (= main_x main_y))), 18027#(and (<= main_a_x 44) (not (= main_x main_y))), 18028#(and (<= main_a_x 45) (not (= main_x main_y))), 18029#(and (<= main_a_x 46) (not (= main_x main_y))), 18030#(and (<= main_a_x 47) (not (= main_x main_y))), 18031#(and (<= main_a_x 48) (not (= main_x main_y))), 18032#(and (not (= main_x main_y)) (<= main_a_x 49)), 18033#(and (not (= main_x main_y)) (<= main_a_x 50)), 18034#(and (<= main_a_x 51) (not (= main_x main_y))), 18035#(and (not (= main_x main_y)) (<= main_a_x 52)), 18036#(and (<= main_a_x 53) (not (= main_x main_y))), 18037#(and (<= main_a_x 54) (not (= main_x main_y))), 18038#(and (not (= main_x main_y)) (<= main_a_x 55)), 18039#(and (not (= main_x main_y)) (<= main_a_x 56)), 18040#(and (not (= main_x main_y)) (<= main_a_x 57)), 18041#(and (not (= main_x main_y)) (<= main_a_x 58)), 18042#(and (not (= main_x main_y)) (<= main_a_x 59)), 18043#(and (<= main_a_x 60) (not (= main_x main_y))), 18044#(and (not (= main_x main_y)) (<= main_a_x 61)), 18045#(and (not (= main_x main_y)) (<= main_a_x 62)), 18046#(and (<= main_a_x 63) (not (= main_x main_y))), 18047#(and (<= main_a_x 64) (not (= main_x main_y)))] [2018-07-23 13:52:30,910 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 13:52:30,911 INFO L450 AbstractCegarLoop]: Interpolant automaton has 83 states [2018-07-23 13:52:30,911 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2018-07-23 13:52:30,912 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3403, Invalid=3403, Unknown=0, NotChecked=0, Total=6806 [2018-07-23 13:52:30,912 INFO L87 Difference]: Start difference. First operand 84 states and 84 transitions. Second operand 83 states. [2018-07-23 13:52:30,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:30,967 INFO L93 Difference]: Finished difference Result 87 states and 87 transitions. [2018-07-23 13:52:30,967 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2018-07-23 13:52:30,968 INFO L78 Accepts]: Start accepts. Automaton has 83 states. Word has length 83 [2018-07-23 13:52:30,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:30,968 INFO L225 Difference]: With dead ends: 87 [2018-07-23 13:52:30,968 INFO L226 Difference]: Without dead ends: 85 [2018-07-23 13:52:30,969 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=3403, Invalid=3403, Unknown=0, NotChecked=0, Total=6806 [2018-07-23 13:52:30,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-07-23 13:52:30,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2018-07-23 13:52:30,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-07-23 13:52:30,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 85 transitions. [2018-07-23 13:52:30,974 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 85 transitions. Word has length 83 [2018-07-23 13:52:30,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:30,974 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 85 transitions. [2018-07-23 13:52:30,974 INFO L472 AbstractCegarLoop]: Interpolant automaton has 83 states. [2018-07-23 13:52:30,974 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 85 transitions. [2018-07-23 13:52:30,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-07-23 13:52:30,975 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:30,975 INFO L357 BasicCegarLoop]: trace histogram [81, 1, 1, 1] [2018-07-23 13:52:30,975 INFO L414 AbstractCegarLoop]: === Iteration 82 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:30,975 INFO L82 PathProgramCache]: Analyzing trace with hash 81833191, now seen corresponding path program 81 times [2018-07-23 13:52:30,976 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:31,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:31,620 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 13:52:31,620 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:31,620 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [83] total 83 [2018-07-23 13:52:31,620 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:31,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:31,621 INFO L185 omatonBuilderFactory]: Interpolants [18432#(and (not (= main_x main_y)) (<= main_a_x 22)), 18433#(and (<= main_a_x 23) (not (= main_x main_y))), 18434#(and (not (= main_x main_y)) (<= main_a_x 24)), 18435#(and (<= main_a_x 25) (not (= main_x main_y))), 18436#(and (not (= main_x main_y)) (<= main_a_x 26)), 18437#(and (not (= main_x main_y)) (<= main_a_x 27)), 18438#(and (not (= main_x main_y)) (<= main_a_x 28)), 18439#(and (not (= main_x main_y)) (<= main_a_x 29)), 18440#(and (<= main_a_x 30) (not (= main_x main_y))), 18441#(and (<= main_a_x 31) (not (= main_x main_y))), 18442#(and (not (= main_x main_y)) (<= main_a_x 32)), 18443#(and (not (= main_x main_y)) (<= main_a_x 33)), 18444#(and (not (= main_x main_y)) (<= main_a_x 34)), 18445#(and (<= main_a_x 35) (not (= main_x main_y))), 18446#(and (not (= main_x main_y)) (<= main_a_x 36)), 18447#(and (<= main_a_x 37) (not (= main_x main_y))), 18448#(and (not (= main_x main_y)) (<= main_a_x 38)), 18449#(and (<= main_a_x 39) (not (= main_x main_y))), 18450#(and (<= main_a_x 40) (not (= main_x main_y))), 18451#(and (not (= main_x main_y)) (<= main_a_x 41)), 18452#(and (not (= main_x main_y)) (<= main_a_x 42)), 18453#(and (<= main_a_x 43) (not (= main_x main_y))), 18454#(and (<= main_a_x 44) (not (= main_x main_y))), 18455#(and (<= main_a_x 45) (not (= main_x main_y))), 18456#(and (<= main_a_x 46) (not (= main_x main_y))), 18457#(and (<= main_a_x 47) (not (= main_x main_y))), 18458#(and (<= main_a_x 48) (not (= main_x main_y))), 18459#(and (not (= main_x main_y)) (<= main_a_x 49)), 18460#(and (not (= main_x main_y)) (<= main_a_x 50)), 18461#(and (<= main_a_x 51) (not (= main_x main_y))), 18462#(and (not (= main_x main_y)) (<= main_a_x 52)), 18463#(and (<= main_a_x 53) (not (= main_x main_y))), 18464#(and (<= main_a_x 54) (not (= main_x main_y))), 18465#(and (not (= main_x main_y)) (<= main_a_x 55)), 18466#(and (not (= main_x main_y)) (<= main_a_x 56)), 18467#(and (not (= main_x main_y)) (<= main_a_x 57)), 18468#(and (not (= main_x main_y)) (<= main_a_x 58)), 18469#(and (not (= main_x main_y)) (<= main_a_x 59)), 18470#(and (<= main_a_x 60) (not (= main_x main_y))), 18471#(and (not (= main_x main_y)) (<= main_a_x 61)), 18472#(and (not (= main_x main_y)) (<= main_a_x 62)), 18473#(and (<= main_a_x 63) (not (= main_x main_y))), 18474#(and (<= main_a_x 64) (not (= main_x main_y))), 18475#(and (<= main_a_x 65) (not (= main_x main_y))), 18476#(and (<= main_a_x 66) (not (= main_x main_y))), 18477#(and (<= main_a_x 67) (not (= main_x main_y))), 18478#(and (not (= main_x main_y)) (<= main_a_x 68)), 18479#(and (<= main_a_x 69) (not (= main_x main_y))), 18480#(and (<= main_a_x 70) (not (= main_x main_y))), 18481#(and (<= main_a_x 71) (not (= main_x main_y))), 18482#(and (not (= main_x main_y)) (<= main_a_x 72)), 18483#(and (not (= main_x main_y)) (<= main_a_x 73)), 18484#(and (<= main_a_x 74) (not (= main_x main_y))), 18485#(and (<= main_a_x 75) (not (= main_x main_y))), 18486#(and (not (= main_x main_y)) (<= main_a_x 76)), 18487#(and (not (= main_x main_y)) (<= main_a_x 77)), 18488#(and (<= main_a_x 78) (not (= main_x main_y))), 18489#(and (<= main_a_x 79) (not (= main_x main_y))), 18490#(and (not (= main_x main_y)) (<= main_a_x 80)), 18491#(<= main_a_x 81), 18408#true, 18409#false, 18410#(and (not (= main_x main_y)) (<= main_a_x 0)), 18411#(and (not (= main_x main_y)) (<= main_a_x 1)), 18412#(and (not (= main_x main_y)) (<= main_a_x 2)), 18413#(and (not (= main_x main_y)) (<= main_a_x 3)), 18414#(and (<= main_a_x 4) (not (= main_x main_y))), 18415#(and (<= main_a_x 5) (not (= main_x main_y))), 18416#(and (not (= main_x main_y)) (<= main_a_x 6)), 18417#(and (<= main_a_x 7) (not (= main_x main_y))), 18418#(and (not (= main_x main_y)) (<= main_a_x 8)), 18419#(and (not (= main_x main_y)) (<= main_a_x 9)), 18420#(and (<= main_a_x 10) (not (= main_x main_y))), 18421#(and (not (= main_x main_y)) (<= main_a_x 11)), 18422#(and (not (= main_x main_y)) (<= main_a_x 12)), 18423#(and (<= main_a_x 13) (not (= main_x main_y))), 18424#(and (not (= main_x main_y)) (<= main_a_x 14)), 18425#(and (<= main_a_x 15) (not (= main_x main_y))), 18426#(and (not (= main_x main_y)) (<= main_a_x 16)), 18427#(and (not (= main_x main_y)) (<= main_a_x 17)), 18428#(and (<= main_a_x 18) (not (= main_x main_y))), 18429#(and (<= main_a_x 19) (not (= main_x main_y))), 18430#(and (not (= main_x main_y)) (<= main_a_x 20)), 18431#(and (not (= main_x main_y)) (<= main_a_x 21))] [2018-07-23 13:52:31,621 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 13:52:31,621 INFO L450 AbstractCegarLoop]: Interpolant automaton has 84 states [2018-07-23 13:52:31,622 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2018-07-23 13:52:31,622 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3486, Invalid=3486, Unknown=0, NotChecked=0, Total=6972 [2018-07-23 13:52:31,622 INFO L87 Difference]: Start difference. First operand 85 states and 85 transitions. Second operand 84 states. [2018-07-23 13:52:31,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:31,667 INFO L93 Difference]: Finished difference Result 88 states and 88 transitions. [2018-07-23 13:52:31,667 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2018-07-23 13:52:31,667 INFO L78 Accepts]: Start accepts. Automaton has 84 states. Word has length 84 [2018-07-23 13:52:31,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:31,668 INFO L225 Difference]: With dead ends: 88 [2018-07-23 13:52:31,668 INFO L226 Difference]: Without dead ends: 86 [2018-07-23 13:52:31,668 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=3486, Invalid=3486, Unknown=0, NotChecked=0, Total=6972 [2018-07-23 13:52:31,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2018-07-23 13:52:31,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2018-07-23 13:52:31,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2018-07-23 13:52:31,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 86 transitions. [2018-07-23 13:52:31,672 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 86 transitions. Word has length 84 [2018-07-23 13:52:31,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:31,672 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 86 transitions. [2018-07-23 13:52:31,672 INFO L472 AbstractCegarLoop]: Interpolant automaton has 84 states. [2018-07-23 13:52:31,672 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 86 transitions. [2018-07-23 13:52:31,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-07-23 13:52:31,673 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:31,673 INFO L357 BasicCegarLoop]: trace histogram [82, 1, 1, 1] [2018-07-23 13:52:31,673 INFO L414 AbstractCegarLoop]: === Iteration 83 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:31,673 INFO L82 PathProgramCache]: Analyzing trace with hash -1758122996, now seen corresponding path program 82 times [2018-07-23 13:52:31,674 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:31,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:32,384 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 13:52:32,384 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:32,385 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [84] total 84 [2018-07-23 13:52:32,385 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:32,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:32,385 INFO L185 omatonBuilderFactory]: Interpolants [18840#true, 18841#false, 18842#(and (not (= main_x main_y)) (<= main_a_x 0)), 18843#(and (not (= main_x main_y)) (<= main_a_x 1)), 18844#(and (not (= main_x main_y)) (<= main_a_x 2)), 18845#(and (not (= main_x main_y)) (<= main_a_x 3)), 18846#(and (<= main_a_x 4) (not (= main_x main_y))), 18847#(and (<= main_a_x 5) (not (= main_x main_y))), 18848#(and (not (= main_x main_y)) (<= main_a_x 6)), 18849#(and (<= main_a_x 7) (not (= main_x main_y))), 18850#(and (not (= main_x main_y)) (<= main_a_x 8)), 18851#(and (not (= main_x main_y)) (<= main_a_x 9)), 18852#(and (<= main_a_x 10) (not (= main_x main_y))), 18853#(and (not (= main_x main_y)) (<= main_a_x 11)), 18854#(and (not (= main_x main_y)) (<= main_a_x 12)), 18855#(and (<= main_a_x 13) (not (= main_x main_y))), 18856#(and (not (= main_x main_y)) (<= main_a_x 14)), 18857#(and (<= main_a_x 15) (not (= main_x main_y))), 18858#(and (not (= main_x main_y)) (<= main_a_x 16)), 18859#(and (not (= main_x main_y)) (<= main_a_x 17)), 18860#(and (<= main_a_x 18) (not (= main_x main_y))), 18861#(and (<= main_a_x 19) (not (= main_x main_y))), 18862#(and (not (= main_x main_y)) (<= main_a_x 20)), 18863#(and (not (= main_x main_y)) (<= main_a_x 21)), 18864#(and (not (= main_x main_y)) (<= main_a_x 22)), 18865#(and (<= main_a_x 23) (not (= main_x main_y))), 18866#(and (not (= main_x main_y)) (<= main_a_x 24)), 18867#(and (<= main_a_x 25) (not (= main_x main_y))), 18868#(and (not (= main_x main_y)) (<= main_a_x 26)), 18869#(and (not (= main_x main_y)) (<= main_a_x 27)), 18870#(and (not (= main_x main_y)) (<= main_a_x 28)), 18871#(and (not (= main_x main_y)) (<= main_a_x 29)), 18872#(and (<= main_a_x 30) (not (= main_x main_y))), 18873#(and (<= main_a_x 31) (not (= main_x main_y))), 18874#(and (not (= main_x main_y)) (<= main_a_x 32)), 18875#(and (not (= main_x main_y)) (<= main_a_x 33)), 18876#(and (not (= main_x main_y)) (<= main_a_x 34)), 18877#(and (<= main_a_x 35) (not (= main_x main_y))), 18878#(and (not (= main_x main_y)) (<= main_a_x 36)), 18879#(and (<= main_a_x 37) (not (= main_x main_y))), 18880#(and (not (= main_x main_y)) (<= main_a_x 38)), 18881#(and (<= main_a_x 39) (not (= main_x main_y))), 18882#(and (<= main_a_x 40) (not (= main_x main_y))), 18883#(and (not (= main_x main_y)) (<= main_a_x 41)), 18884#(and (not (= main_x main_y)) (<= main_a_x 42)), 18885#(and (<= main_a_x 43) (not (= main_x main_y))), 18886#(and (<= main_a_x 44) (not (= main_x main_y))), 18887#(and (<= main_a_x 45) (not (= main_x main_y))), 18888#(and (<= main_a_x 46) (not (= main_x main_y))), 18889#(and (<= main_a_x 47) (not (= main_x main_y))), 18890#(and (<= main_a_x 48) (not (= main_x main_y))), 18891#(and (not (= main_x main_y)) (<= main_a_x 49)), 18892#(and (not (= main_x main_y)) (<= main_a_x 50)), 18893#(and (<= main_a_x 51) (not (= main_x main_y))), 18894#(and (not (= main_x main_y)) (<= main_a_x 52)), 18895#(and (<= main_a_x 53) (not (= main_x main_y))), 18896#(and (<= main_a_x 54) (not (= main_x main_y))), 18897#(and (not (= main_x main_y)) (<= main_a_x 55)), 18898#(and (not (= main_x main_y)) (<= main_a_x 56)), 18899#(and (not (= main_x main_y)) (<= main_a_x 57)), 18900#(and (not (= main_x main_y)) (<= main_a_x 58)), 18901#(and (not (= main_x main_y)) (<= main_a_x 59)), 18902#(and (<= main_a_x 60) (not (= main_x main_y))), 18903#(and (not (= main_x main_y)) (<= main_a_x 61)), 18904#(and (not (= main_x main_y)) (<= main_a_x 62)), 18905#(and (<= main_a_x 63) (not (= main_x main_y))), 18906#(and (<= main_a_x 64) (not (= main_x main_y))), 18907#(and (<= main_a_x 65) (not (= main_x main_y))), 18908#(and (<= main_a_x 66) (not (= main_x main_y))), 18909#(and (<= main_a_x 67) (not (= main_x main_y))), 18910#(and (not (= main_x main_y)) (<= main_a_x 68)), 18911#(and (<= main_a_x 69) (not (= main_x main_y))), 18912#(and (<= main_a_x 70) (not (= main_x main_y))), 18913#(and (<= main_a_x 71) (not (= main_x main_y))), 18914#(and (not (= main_x main_y)) (<= main_a_x 72)), 18915#(and (not (= main_x main_y)) (<= main_a_x 73)), 18916#(and (<= main_a_x 74) (not (= main_x main_y))), 18917#(and (<= main_a_x 75) (not (= main_x main_y))), 18918#(and (not (= main_x main_y)) (<= main_a_x 76)), 18919#(and (not (= main_x main_y)) (<= main_a_x 77)), 18920#(and (<= main_a_x 78) (not (= main_x main_y))), 18921#(and (<= main_a_x 79) (not (= main_x main_y))), 18922#(and (not (= main_x main_y)) (<= main_a_x 80)), 18923#(and (not (= main_x main_y)) (<= main_a_x 81)), 18924#(<= main_a_x 82)] [2018-07-23 13:52:32,385 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 13:52:32,385 INFO L450 AbstractCegarLoop]: Interpolant automaton has 85 states [2018-07-23 13:52:32,386 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2018-07-23 13:52:32,386 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3570, Invalid=3570, Unknown=0, NotChecked=0, Total=7140 [2018-07-23 13:52:32,386 INFO L87 Difference]: Start difference. First operand 86 states and 86 transitions. Second operand 85 states. [2018-07-23 13:52:32,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:32,442 INFO L93 Difference]: Finished difference Result 89 states and 89 transitions. [2018-07-23 13:52:32,443 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2018-07-23 13:52:32,443 INFO L78 Accepts]: Start accepts. Automaton has 85 states. Word has length 85 [2018-07-23 13:52:32,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:32,443 INFO L225 Difference]: With dead ends: 89 [2018-07-23 13:52:32,443 INFO L226 Difference]: Without dead ends: 87 [2018-07-23 13:52:32,444 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=3570, Invalid=3570, Unknown=0, NotChecked=0, Total=7140 [2018-07-23 13:52:32,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2018-07-23 13:52:32,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2018-07-23 13:52:32,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2018-07-23 13:52:32,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 87 transitions. [2018-07-23 13:52:32,449 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 87 transitions. Word has length 85 [2018-07-23 13:52:32,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:32,449 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 87 transitions. [2018-07-23 13:52:32,449 INFO L472 AbstractCegarLoop]: Interpolant automaton has 85 states. [2018-07-23 13:52:32,449 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 87 transitions. [2018-07-23 13:52:32,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-07-23 13:52:32,450 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:32,450 INFO L357 BasicCegarLoop]: trace histogram [83, 1, 1, 1] [2018-07-23 13:52:32,450 INFO L414 AbstractCegarLoop]: === Iteration 84 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:32,450 INFO L82 PathProgramCache]: Analyzing trace with hash 1332777351, now seen corresponding path program 83 times [2018-07-23 13:52:32,450 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:32,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:33,306 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 13:52:33,307 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:33,307 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [85] total 85 [2018-07-23 13:52:33,307 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:33,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:33,307 INFO L185 omatonBuilderFactory]: Interpolants [19328#(and (not (= main_x main_y)) (<= main_a_x 49)), 19329#(and (not (= main_x main_y)) (<= main_a_x 50)), 19330#(and (<= main_a_x 51) (not (= main_x main_y))), 19331#(and (not (= main_x main_y)) (<= main_a_x 52)), 19332#(and (<= main_a_x 53) (not (= main_x main_y))), 19333#(and (<= main_a_x 54) (not (= main_x main_y))), 19334#(and (not (= main_x main_y)) (<= main_a_x 55)), 19335#(and (not (= main_x main_y)) (<= main_a_x 56)), 19336#(and (not (= main_x main_y)) (<= main_a_x 57)), 19337#(and (not (= main_x main_y)) (<= main_a_x 58)), 19338#(and (not (= main_x main_y)) (<= main_a_x 59)), 19339#(and (<= main_a_x 60) (not (= main_x main_y))), 19340#(and (not (= main_x main_y)) (<= main_a_x 61)), 19341#(and (not (= main_x main_y)) (<= main_a_x 62)), 19342#(and (<= main_a_x 63) (not (= main_x main_y))), 19343#(and (<= main_a_x 64) (not (= main_x main_y))), 19344#(and (<= main_a_x 65) (not (= main_x main_y))), 19345#(and (<= main_a_x 66) (not (= main_x main_y))), 19346#(and (<= main_a_x 67) (not (= main_x main_y))), 19347#(and (not (= main_x main_y)) (<= main_a_x 68)), 19348#(and (<= main_a_x 69) (not (= main_x main_y))), 19349#(and (<= main_a_x 70) (not (= main_x main_y))), 19350#(and (<= main_a_x 71) (not (= main_x main_y))), 19351#(and (not (= main_x main_y)) (<= main_a_x 72)), 19352#(and (not (= main_x main_y)) (<= main_a_x 73)), 19353#(and (<= main_a_x 74) (not (= main_x main_y))), 19354#(and (<= main_a_x 75) (not (= main_x main_y))), 19355#(and (not (= main_x main_y)) (<= main_a_x 76)), 19356#(and (not (= main_x main_y)) (<= main_a_x 77)), 19357#(and (<= main_a_x 78) (not (= main_x main_y))), 19358#(and (<= main_a_x 79) (not (= main_x main_y))), 19359#(and (not (= main_x main_y)) (<= main_a_x 80)), 19360#(and (not (= main_x main_y)) (<= main_a_x 81)), 19361#(and (not (= main_x main_y)) (<= main_a_x 82)), 19362#(<= main_a_x 83), 19277#true, 19278#false, 19279#(and (not (= main_x main_y)) (<= main_a_x 0)), 19280#(and (not (= main_x main_y)) (<= main_a_x 1)), 19281#(and (not (= main_x main_y)) (<= main_a_x 2)), 19282#(and (not (= main_x main_y)) (<= main_a_x 3)), 19283#(and (<= main_a_x 4) (not (= main_x main_y))), 19284#(and (<= main_a_x 5) (not (= main_x main_y))), 19285#(and (not (= main_x main_y)) (<= main_a_x 6)), 19286#(and (<= main_a_x 7) (not (= main_x main_y))), 19287#(and (not (= main_x main_y)) (<= main_a_x 8)), 19288#(and (not (= main_x main_y)) (<= main_a_x 9)), 19289#(and (<= main_a_x 10) (not (= main_x main_y))), 19290#(and (not (= main_x main_y)) (<= main_a_x 11)), 19291#(and (not (= main_x main_y)) (<= main_a_x 12)), 19292#(and (<= main_a_x 13) (not (= main_x main_y))), 19293#(and (not (= main_x main_y)) (<= main_a_x 14)), 19294#(and (<= main_a_x 15) (not (= main_x main_y))), 19295#(and (not (= main_x main_y)) (<= main_a_x 16)), 19296#(and (not (= main_x main_y)) (<= main_a_x 17)), 19297#(and (<= main_a_x 18) (not (= main_x main_y))), 19298#(and (<= main_a_x 19) (not (= main_x main_y))), 19299#(and (not (= main_x main_y)) (<= main_a_x 20)), 19300#(and (not (= main_x main_y)) (<= main_a_x 21)), 19301#(and (not (= main_x main_y)) (<= main_a_x 22)), 19302#(and (<= main_a_x 23) (not (= main_x main_y))), 19303#(and (not (= main_x main_y)) (<= main_a_x 24)), 19304#(and (<= main_a_x 25) (not (= main_x main_y))), 19305#(and (not (= main_x main_y)) (<= main_a_x 26)), 19306#(and (not (= main_x main_y)) (<= main_a_x 27)), 19307#(and (not (= main_x main_y)) (<= main_a_x 28)), 19308#(and (not (= main_x main_y)) (<= main_a_x 29)), 19309#(and (<= main_a_x 30) (not (= main_x main_y))), 19310#(and (<= main_a_x 31) (not (= main_x main_y))), 19311#(and (not (= main_x main_y)) (<= main_a_x 32)), 19312#(and (not (= main_x main_y)) (<= main_a_x 33)), 19313#(and (not (= main_x main_y)) (<= main_a_x 34)), 19314#(and (<= main_a_x 35) (not (= main_x main_y))), 19315#(and (not (= main_x main_y)) (<= main_a_x 36)), 19316#(and (<= main_a_x 37) (not (= main_x main_y))), 19317#(and (not (= main_x main_y)) (<= main_a_x 38)), 19318#(and (<= main_a_x 39) (not (= main_x main_y))), 19319#(and (<= main_a_x 40) (not (= main_x main_y))), 19320#(and (not (= main_x main_y)) (<= main_a_x 41)), 19321#(and (not (= main_x main_y)) (<= main_a_x 42)), 19322#(and (<= main_a_x 43) (not (= main_x main_y))), 19323#(and (<= main_a_x 44) (not (= main_x main_y))), 19324#(and (<= main_a_x 45) (not (= main_x main_y))), 19325#(and (<= main_a_x 46) (not (= main_x main_y))), 19326#(and (<= main_a_x 47) (not (= main_x main_y))), 19327#(and (<= main_a_x 48) (not (= main_x main_y)))] [2018-07-23 13:52:33,307 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 13:52:33,308 INFO L450 AbstractCegarLoop]: Interpolant automaton has 86 states [2018-07-23 13:52:33,308 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2018-07-23 13:52:33,308 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3655, Invalid=3655, Unknown=0, NotChecked=0, Total=7310 [2018-07-23 13:52:33,308 INFO L87 Difference]: Start difference. First operand 87 states and 87 transitions. Second operand 86 states. [2018-07-23 13:52:33,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:33,340 INFO L93 Difference]: Finished difference Result 90 states and 90 transitions. [2018-07-23 13:52:33,340 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2018-07-23 13:52:33,340 INFO L78 Accepts]: Start accepts. Automaton has 86 states. Word has length 86 [2018-07-23 13:52:33,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:33,341 INFO L225 Difference]: With dead ends: 90 [2018-07-23 13:52:33,341 INFO L226 Difference]: Without dead ends: 88 [2018-07-23 13:52:33,341 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=3655, Invalid=3655, Unknown=0, NotChecked=0, Total=7310 [2018-07-23 13:52:33,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2018-07-23 13:52:33,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2018-07-23 13:52:33,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2018-07-23 13:52:33,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 88 transitions. [2018-07-23 13:52:33,346 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 88 transitions. Word has length 86 [2018-07-23 13:52:33,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:33,347 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 88 transitions. [2018-07-23 13:52:33,347 INFO L472 AbstractCegarLoop]: Interpolant automaton has 86 states. [2018-07-23 13:52:33,347 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 88 transitions. [2018-07-23 13:52:33,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-07-23 13:52:33,347 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:33,348 INFO L357 BasicCegarLoop]: trace histogram [84, 1, 1, 1] [2018-07-23 13:52:33,348 INFO L414 AbstractCegarLoop]: === Iteration 85 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:33,348 INFO L82 PathProgramCache]: Analyzing trace with hash -1633559700, now seen corresponding path program 84 times [2018-07-23 13:52:33,348 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:33,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:34,022 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 13:52:34,023 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:34,023 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [86] total 86 [2018-07-23 13:52:34,023 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:34,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:34,023 INFO L185 omatonBuilderFactory]: Interpolants [19719#true, 19720#false, 19721#(and (not (= main_x main_y)) (<= main_a_x 0)), 19722#(and (not (= main_x main_y)) (<= main_a_x 1)), 19723#(and (not (= main_x main_y)) (<= main_a_x 2)), 19724#(and (not (= main_x main_y)) (<= main_a_x 3)), 19725#(and (<= main_a_x 4) (not (= main_x main_y))), 19726#(and (<= main_a_x 5) (not (= main_x main_y))), 19727#(and (not (= main_x main_y)) (<= main_a_x 6)), 19728#(and (<= main_a_x 7) (not (= main_x main_y))), 19729#(and (not (= main_x main_y)) (<= main_a_x 8)), 19730#(and (not (= main_x main_y)) (<= main_a_x 9)), 19731#(and (<= main_a_x 10) (not (= main_x main_y))), 19732#(and (not (= main_x main_y)) (<= main_a_x 11)), 19733#(and (not (= main_x main_y)) (<= main_a_x 12)), 19734#(and (<= main_a_x 13) (not (= main_x main_y))), 19735#(and (not (= main_x main_y)) (<= main_a_x 14)), 19736#(and (<= main_a_x 15) (not (= main_x main_y))), 19737#(and (not (= main_x main_y)) (<= main_a_x 16)), 19738#(and (not (= main_x main_y)) (<= main_a_x 17)), 19739#(and (<= main_a_x 18) (not (= main_x main_y))), 19740#(and (<= main_a_x 19) (not (= main_x main_y))), 19741#(and (not (= main_x main_y)) (<= main_a_x 20)), 19742#(and (not (= main_x main_y)) (<= main_a_x 21)), 19743#(and (not (= main_x main_y)) (<= main_a_x 22)), 19744#(and (<= main_a_x 23) (not (= main_x main_y))), 19745#(and (not (= main_x main_y)) (<= main_a_x 24)), 19746#(and (<= main_a_x 25) (not (= main_x main_y))), 19747#(and (not (= main_x main_y)) (<= main_a_x 26)), 19748#(and (not (= main_x main_y)) (<= main_a_x 27)), 19749#(and (not (= main_x main_y)) (<= main_a_x 28)), 19750#(and (not (= main_x main_y)) (<= main_a_x 29)), 19751#(and (<= main_a_x 30) (not (= main_x main_y))), 19752#(and (<= main_a_x 31) (not (= main_x main_y))), 19753#(and (not (= main_x main_y)) (<= main_a_x 32)), 19754#(and (not (= main_x main_y)) (<= main_a_x 33)), 19755#(and (not (= main_x main_y)) (<= main_a_x 34)), 19756#(and (<= main_a_x 35) (not (= main_x main_y))), 19757#(and (not (= main_x main_y)) (<= main_a_x 36)), 19758#(and (<= main_a_x 37) (not (= main_x main_y))), 19759#(and (not (= main_x main_y)) (<= main_a_x 38)), 19760#(and (<= main_a_x 39) (not (= main_x main_y))), 19761#(and (<= main_a_x 40) (not (= main_x main_y))), 19762#(and (not (= main_x main_y)) (<= main_a_x 41)), 19763#(and (not (= main_x main_y)) (<= main_a_x 42)), 19764#(and (<= main_a_x 43) (not (= main_x main_y))), 19765#(and (<= main_a_x 44) (not (= main_x main_y))), 19766#(and (<= main_a_x 45) (not (= main_x main_y))), 19767#(and (<= main_a_x 46) (not (= main_x main_y))), 19768#(and (<= main_a_x 47) (not (= main_x main_y))), 19769#(and (<= main_a_x 48) (not (= main_x main_y))), 19770#(and (not (= main_x main_y)) (<= main_a_x 49)), 19771#(and (not (= main_x main_y)) (<= main_a_x 50)), 19772#(and (<= main_a_x 51) (not (= main_x main_y))), 19773#(and (not (= main_x main_y)) (<= main_a_x 52)), 19774#(and (<= main_a_x 53) (not (= main_x main_y))), 19775#(and (<= main_a_x 54) (not (= main_x main_y))), 19776#(and (not (= main_x main_y)) (<= main_a_x 55)), 19777#(and (not (= main_x main_y)) (<= main_a_x 56)), 19778#(and (not (= main_x main_y)) (<= main_a_x 57)), 19779#(and (not (= main_x main_y)) (<= main_a_x 58)), 19780#(and (not (= main_x main_y)) (<= main_a_x 59)), 19781#(and (<= main_a_x 60) (not (= main_x main_y))), 19782#(and (not (= main_x main_y)) (<= main_a_x 61)), 19783#(and (not (= main_x main_y)) (<= main_a_x 62)), 19784#(and (<= main_a_x 63) (not (= main_x main_y))), 19785#(and (<= main_a_x 64) (not (= main_x main_y))), 19786#(and (<= main_a_x 65) (not (= main_x main_y))), 19787#(and (<= main_a_x 66) (not (= main_x main_y))), 19788#(and (<= main_a_x 67) (not (= main_x main_y))), 19789#(and (not (= main_x main_y)) (<= main_a_x 68)), 19790#(and (<= main_a_x 69) (not (= main_x main_y))), 19791#(and (<= main_a_x 70) (not (= main_x main_y))), 19792#(and (<= main_a_x 71) (not (= main_x main_y))), 19793#(and (not (= main_x main_y)) (<= main_a_x 72)), 19794#(and (not (= main_x main_y)) (<= main_a_x 73)), 19795#(and (<= main_a_x 74) (not (= main_x main_y))), 19796#(and (<= main_a_x 75) (not (= main_x main_y))), 19797#(and (not (= main_x main_y)) (<= main_a_x 76)), 19798#(and (not (= main_x main_y)) (<= main_a_x 77)), 19799#(and (<= main_a_x 78) (not (= main_x main_y))), 19800#(and (<= main_a_x 79) (not (= main_x main_y))), 19801#(and (not (= main_x main_y)) (<= main_a_x 80)), 19802#(and (not (= main_x main_y)) (<= main_a_x 81)), 19803#(and (not (= main_x main_y)) (<= main_a_x 82)), 19804#(and (not (= main_x main_y)) (<= main_a_x 83)), 19805#(<= main_a_x 84)] [2018-07-23 13:52:34,024 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 13:52:34,024 INFO L450 AbstractCegarLoop]: Interpolant automaton has 87 states [2018-07-23 13:52:34,024 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2018-07-23 13:52:34,025 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3741, Invalid=3741, Unknown=0, NotChecked=0, Total=7482 [2018-07-23 13:52:34,025 INFO L87 Difference]: Start difference. First operand 88 states and 88 transitions. Second operand 87 states. [2018-07-23 13:52:34,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:34,088 INFO L93 Difference]: Finished difference Result 91 states and 91 transitions. [2018-07-23 13:52:34,088 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2018-07-23 13:52:34,088 INFO L78 Accepts]: Start accepts. Automaton has 87 states. Word has length 87 [2018-07-23 13:52:34,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:34,088 INFO L225 Difference]: With dead ends: 91 [2018-07-23 13:52:34,088 INFO L226 Difference]: Without dead ends: 89 [2018-07-23 13:52:34,089 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=3741, Invalid=3741, Unknown=0, NotChecked=0, Total=7482 [2018-07-23 13:52:34,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2018-07-23 13:52:34,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2018-07-23 13:52:34,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-07-23 13:52:34,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 89 transitions. [2018-07-23 13:52:34,093 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 89 transitions. Word has length 87 [2018-07-23 13:52:34,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:34,093 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 89 transitions. [2018-07-23 13:52:34,093 INFO L472 AbstractCegarLoop]: Interpolant automaton has 87 states. [2018-07-23 13:52:34,094 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 89 transitions. [2018-07-23 13:52:34,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-07-23 13:52:34,094 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:34,094 INFO L357 BasicCegarLoop]: trace histogram [85, 1, 1, 1] [2018-07-23 13:52:34,094 INFO L414 AbstractCegarLoop]: === Iteration 86 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:34,095 INFO L82 PathProgramCache]: Analyzing trace with hash 899272231, now seen corresponding path program 85 times [2018-07-23 13:52:34,095 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:34,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:34,799 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 13:52:34,800 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:34,800 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [87] total 87 [2018-07-23 13:52:34,800 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:34,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:34,800 INFO L185 omatonBuilderFactory]: Interpolants [20224#(and (not (= main_x main_y)) (<= main_a_x 56)), 20225#(and (not (= main_x main_y)) (<= main_a_x 57)), 20226#(and (not (= main_x main_y)) (<= main_a_x 58)), 20227#(and (not (= main_x main_y)) (<= main_a_x 59)), 20228#(and (<= main_a_x 60) (not (= main_x main_y))), 20229#(and (not (= main_x main_y)) (<= main_a_x 61)), 20230#(and (not (= main_x main_y)) (<= main_a_x 62)), 20231#(and (<= main_a_x 63) (not (= main_x main_y))), 20232#(and (<= main_a_x 64) (not (= main_x main_y))), 20233#(and (<= main_a_x 65) (not (= main_x main_y))), 20234#(and (<= main_a_x 66) (not (= main_x main_y))), 20235#(and (<= main_a_x 67) (not (= main_x main_y))), 20236#(and (not (= main_x main_y)) (<= main_a_x 68)), 20237#(and (<= main_a_x 69) (not (= main_x main_y))), 20238#(and (<= main_a_x 70) (not (= main_x main_y))), 20239#(and (<= main_a_x 71) (not (= main_x main_y))), 20240#(and (not (= main_x main_y)) (<= main_a_x 72)), 20241#(and (not (= main_x main_y)) (<= main_a_x 73)), 20242#(and (<= main_a_x 74) (not (= main_x main_y))), 20243#(and (<= main_a_x 75) (not (= main_x main_y))), 20244#(and (not (= main_x main_y)) (<= main_a_x 76)), 20245#(and (not (= main_x main_y)) (<= main_a_x 77)), 20246#(and (<= main_a_x 78) (not (= main_x main_y))), 20247#(and (<= main_a_x 79) (not (= main_x main_y))), 20248#(and (not (= main_x main_y)) (<= main_a_x 80)), 20249#(and (not (= main_x main_y)) (<= main_a_x 81)), 20250#(and (not (= main_x main_y)) (<= main_a_x 82)), 20251#(and (not (= main_x main_y)) (<= main_a_x 83)), 20252#(and (<= main_a_x 84) (not (= main_x main_y))), 20253#(<= main_a_x 85), 20166#true, 20167#false, 20168#(and (not (= main_x main_y)) (<= main_a_x 0)), 20169#(and (not (= main_x main_y)) (<= main_a_x 1)), 20170#(and (not (= main_x main_y)) (<= main_a_x 2)), 20171#(and (not (= main_x main_y)) (<= main_a_x 3)), 20172#(and (<= main_a_x 4) (not (= main_x main_y))), 20173#(and (<= main_a_x 5) (not (= main_x main_y))), 20174#(and (not (= main_x main_y)) (<= main_a_x 6)), 20175#(and (<= main_a_x 7) (not (= main_x main_y))), 20176#(and (not (= main_x main_y)) (<= main_a_x 8)), 20177#(and (not (= main_x main_y)) (<= main_a_x 9)), 20178#(and (<= main_a_x 10) (not (= main_x main_y))), 20179#(and (not (= main_x main_y)) (<= main_a_x 11)), 20180#(and (not (= main_x main_y)) (<= main_a_x 12)), 20181#(and (<= main_a_x 13) (not (= main_x main_y))), 20182#(and (not (= main_x main_y)) (<= main_a_x 14)), 20183#(and (<= main_a_x 15) (not (= main_x main_y))), 20184#(and (not (= main_x main_y)) (<= main_a_x 16)), 20185#(and (not (= main_x main_y)) (<= main_a_x 17)), 20186#(and (<= main_a_x 18) (not (= main_x main_y))), 20187#(and (<= main_a_x 19) (not (= main_x main_y))), 20188#(and (not (= main_x main_y)) (<= main_a_x 20)), 20189#(and (not (= main_x main_y)) (<= main_a_x 21)), 20190#(and (not (= main_x main_y)) (<= main_a_x 22)), 20191#(and (<= main_a_x 23) (not (= main_x main_y))), 20192#(and (not (= main_x main_y)) (<= main_a_x 24)), 20193#(and (<= main_a_x 25) (not (= main_x main_y))), 20194#(and (not (= main_x main_y)) (<= main_a_x 26)), 20195#(and (not (= main_x main_y)) (<= main_a_x 27)), 20196#(and (not (= main_x main_y)) (<= main_a_x 28)), 20197#(and (not (= main_x main_y)) (<= main_a_x 29)), 20198#(and (<= main_a_x 30) (not (= main_x main_y))), 20199#(and (<= main_a_x 31) (not (= main_x main_y))), 20200#(and (not (= main_x main_y)) (<= main_a_x 32)), 20201#(and (not (= main_x main_y)) (<= main_a_x 33)), 20202#(and (not (= main_x main_y)) (<= main_a_x 34)), 20203#(and (<= main_a_x 35) (not (= main_x main_y))), 20204#(and (not (= main_x main_y)) (<= main_a_x 36)), 20205#(and (<= main_a_x 37) (not (= main_x main_y))), 20206#(and (not (= main_x main_y)) (<= main_a_x 38)), 20207#(and (<= main_a_x 39) (not (= main_x main_y))), 20208#(and (<= main_a_x 40) (not (= main_x main_y))), 20209#(and (not (= main_x main_y)) (<= main_a_x 41)), 20210#(and (not (= main_x main_y)) (<= main_a_x 42)), 20211#(and (<= main_a_x 43) (not (= main_x main_y))), 20212#(and (<= main_a_x 44) (not (= main_x main_y))), 20213#(and (<= main_a_x 45) (not (= main_x main_y))), 20214#(and (<= main_a_x 46) (not (= main_x main_y))), 20215#(and (<= main_a_x 47) (not (= main_x main_y))), 20216#(and (<= main_a_x 48) (not (= main_x main_y))), 20217#(and (not (= main_x main_y)) (<= main_a_x 49)), 20218#(and (not (= main_x main_y)) (<= main_a_x 50)), 20219#(and (<= main_a_x 51) (not (= main_x main_y))), 20220#(and (not (= main_x main_y)) (<= main_a_x 52)), 20221#(and (<= main_a_x 53) (not (= main_x main_y))), 20222#(and (<= main_a_x 54) (not (= main_x main_y))), 20223#(and (not (= main_x main_y)) (<= main_a_x 55))] [2018-07-23 13:52:34,801 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 13:52:34,801 INFO L450 AbstractCegarLoop]: Interpolant automaton has 88 states [2018-07-23 13:52:34,802 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2018-07-23 13:52:34,802 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3828, Invalid=3828, Unknown=0, NotChecked=0, Total=7656 [2018-07-23 13:52:34,802 INFO L87 Difference]: Start difference. First operand 89 states and 89 transitions. Second operand 88 states. [2018-07-23 13:52:34,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:34,852 INFO L93 Difference]: Finished difference Result 92 states and 92 transitions. [2018-07-23 13:52:34,852 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2018-07-23 13:52:34,852 INFO L78 Accepts]: Start accepts. Automaton has 88 states. Word has length 88 [2018-07-23 13:52:34,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:34,852 INFO L225 Difference]: With dead ends: 92 [2018-07-23 13:52:34,853 INFO L226 Difference]: Without dead ends: 90 [2018-07-23 13:52:34,853 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=3828, Invalid=3828, Unknown=0, NotChecked=0, Total=7656 [2018-07-23 13:52:34,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2018-07-23 13:52:34,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2018-07-23 13:52:34,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2018-07-23 13:52:34,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 90 transitions. [2018-07-23 13:52:34,859 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 90 transitions. Word has length 88 [2018-07-23 13:52:34,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:34,859 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 90 transitions. [2018-07-23 13:52:34,859 INFO L472 AbstractCegarLoop]: Interpolant automaton has 88 states. [2018-07-23 13:52:34,859 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 90 transitions. [2018-07-23 13:52:34,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-07-23 13:52:34,860 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:34,860 INFO L357 BasicCegarLoop]: trace histogram [86, 1, 1, 1] [2018-07-23 13:52:34,860 INFO L414 AbstractCegarLoop]: === Iteration 87 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:34,860 INFO L82 PathProgramCache]: Analyzing trace with hash 2107650764, now seen corresponding path program 86 times [2018-07-23 13:52:34,860 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:34,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:35,592 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 13:52:35,592 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:35,593 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [88] total 88 [2018-07-23 13:52:35,593 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:35,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:35,593 INFO L185 omatonBuilderFactory]: Interpolants [20618#true, 20619#false, 20620#(and (not (= main_x main_y)) (<= main_a_x 0)), 20621#(and (not (= main_x main_y)) (<= main_a_x 1)), 20622#(and (not (= main_x main_y)) (<= main_a_x 2)), 20623#(and (not (= main_x main_y)) (<= main_a_x 3)), 20624#(and (<= main_a_x 4) (not (= main_x main_y))), 20625#(and (<= main_a_x 5) (not (= main_x main_y))), 20626#(and (not (= main_x main_y)) (<= main_a_x 6)), 20627#(and (<= main_a_x 7) (not (= main_x main_y))), 20628#(and (not (= main_x main_y)) (<= main_a_x 8)), 20629#(and (not (= main_x main_y)) (<= main_a_x 9)), 20630#(and (<= main_a_x 10) (not (= main_x main_y))), 20631#(and (not (= main_x main_y)) (<= main_a_x 11)), 20632#(and (not (= main_x main_y)) (<= main_a_x 12)), 20633#(and (<= main_a_x 13) (not (= main_x main_y))), 20634#(and (not (= main_x main_y)) (<= main_a_x 14)), 20635#(and (<= main_a_x 15) (not (= main_x main_y))), 20636#(and (not (= main_x main_y)) (<= main_a_x 16)), 20637#(and (not (= main_x main_y)) (<= main_a_x 17)), 20638#(and (<= main_a_x 18) (not (= main_x main_y))), 20639#(and (<= main_a_x 19) (not (= main_x main_y))), 20640#(and (not (= main_x main_y)) (<= main_a_x 20)), 20641#(and (not (= main_x main_y)) (<= main_a_x 21)), 20642#(and (not (= main_x main_y)) (<= main_a_x 22)), 20643#(and (<= main_a_x 23) (not (= main_x main_y))), 20644#(and (not (= main_x main_y)) (<= main_a_x 24)), 20645#(and (<= main_a_x 25) (not (= main_x main_y))), 20646#(and (not (= main_x main_y)) (<= main_a_x 26)), 20647#(and (not (= main_x main_y)) (<= main_a_x 27)), 20648#(and (not (= main_x main_y)) (<= main_a_x 28)), 20649#(and (not (= main_x main_y)) (<= main_a_x 29)), 20650#(and (<= main_a_x 30) (not (= main_x main_y))), 20651#(and (<= main_a_x 31) (not (= main_x main_y))), 20652#(and (not (= main_x main_y)) (<= main_a_x 32)), 20653#(and (not (= main_x main_y)) (<= main_a_x 33)), 20654#(and (not (= main_x main_y)) (<= main_a_x 34)), 20655#(and (<= main_a_x 35) (not (= main_x main_y))), 20656#(and (not (= main_x main_y)) (<= main_a_x 36)), 20657#(and (<= main_a_x 37) (not (= main_x main_y))), 20658#(and (not (= main_x main_y)) (<= main_a_x 38)), 20659#(and (<= main_a_x 39) (not (= main_x main_y))), 20660#(and (<= main_a_x 40) (not (= main_x main_y))), 20661#(and (not (= main_x main_y)) (<= main_a_x 41)), 20662#(and (not (= main_x main_y)) (<= main_a_x 42)), 20663#(and (<= main_a_x 43) (not (= main_x main_y))), 20664#(and (<= main_a_x 44) (not (= main_x main_y))), 20665#(and (<= main_a_x 45) (not (= main_x main_y))), 20666#(and (<= main_a_x 46) (not (= main_x main_y))), 20667#(and (<= main_a_x 47) (not (= main_x main_y))), 20668#(and (<= main_a_x 48) (not (= main_x main_y))), 20669#(and (not (= main_x main_y)) (<= main_a_x 49)), 20670#(and (not (= main_x main_y)) (<= main_a_x 50)), 20671#(and (<= main_a_x 51) (not (= main_x main_y))), 20672#(and (not (= main_x main_y)) (<= main_a_x 52)), 20673#(and (<= main_a_x 53) (not (= main_x main_y))), 20674#(and (<= main_a_x 54) (not (= main_x main_y))), 20675#(and (not (= main_x main_y)) (<= main_a_x 55)), 20676#(and (not (= main_x main_y)) (<= main_a_x 56)), 20677#(and (not (= main_x main_y)) (<= main_a_x 57)), 20678#(and (not (= main_x main_y)) (<= main_a_x 58)), 20679#(and (not (= main_x main_y)) (<= main_a_x 59)), 20680#(and (<= main_a_x 60) (not (= main_x main_y))), 20681#(and (not (= main_x main_y)) (<= main_a_x 61)), 20682#(and (not (= main_x main_y)) (<= main_a_x 62)), 20683#(and (<= main_a_x 63) (not (= main_x main_y))), 20684#(and (<= main_a_x 64) (not (= main_x main_y))), 20685#(and (<= main_a_x 65) (not (= main_x main_y))), 20686#(and (<= main_a_x 66) (not (= main_x main_y))), 20687#(and (<= main_a_x 67) (not (= main_x main_y))), 20688#(and (not (= main_x main_y)) (<= main_a_x 68)), 20689#(and (<= main_a_x 69) (not (= main_x main_y))), 20690#(and (<= main_a_x 70) (not (= main_x main_y))), 20691#(and (<= main_a_x 71) (not (= main_x main_y))), 20692#(and (not (= main_x main_y)) (<= main_a_x 72)), 20693#(and (not (= main_x main_y)) (<= main_a_x 73)), 20694#(and (<= main_a_x 74) (not (= main_x main_y))), 20695#(and (<= main_a_x 75) (not (= main_x main_y))), 20696#(and (not (= main_x main_y)) (<= main_a_x 76)), 20697#(and (not (= main_x main_y)) (<= main_a_x 77)), 20698#(and (<= main_a_x 78) (not (= main_x main_y))), 20699#(and (<= main_a_x 79) (not (= main_x main_y))), 20700#(and (not (= main_x main_y)) (<= main_a_x 80)), 20701#(and (not (= main_x main_y)) (<= main_a_x 81)), 20702#(and (not (= main_x main_y)) (<= main_a_x 82)), 20703#(and (not (= main_x main_y)) (<= main_a_x 83)), 20704#(and (<= main_a_x 84) (not (= main_x main_y))), 20705#(and (not (= main_x main_y)) (<= main_a_x 85)), 20706#(<= main_a_x 86)] [2018-07-23 13:52:35,593 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 13:52:35,594 INFO L450 AbstractCegarLoop]: Interpolant automaton has 89 states [2018-07-23 13:52:35,594 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2018-07-23 13:52:35,595 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3916, Invalid=3916, Unknown=0, NotChecked=0, Total=7832 [2018-07-23 13:52:35,595 INFO L87 Difference]: Start difference. First operand 90 states and 90 transitions. Second operand 89 states. [2018-07-23 13:52:35,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:35,680 INFO L93 Difference]: Finished difference Result 93 states and 93 transitions. [2018-07-23 13:52:35,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2018-07-23 13:52:35,680 INFO L78 Accepts]: Start accepts. Automaton has 89 states. Word has length 89 [2018-07-23 13:52:35,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:35,681 INFO L225 Difference]: With dead ends: 93 [2018-07-23 13:52:35,681 INFO L226 Difference]: Without dead ends: 91 [2018-07-23 13:52:35,681 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=3916, Invalid=3916, Unknown=0, NotChecked=0, Total=7832 [2018-07-23 13:52:35,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2018-07-23 13:52:35,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2018-07-23 13:52:35,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2018-07-23 13:52:35,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 91 transitions. [2018-07-23 13:52:35,686 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 91 transitions. Word has length 89 [2018-07-23 13:52:35,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:35,686 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 91 transitions. [2018-07-23 13:52:35,686 INFO L472 AbstractCegarLoop]: Interpolant automaton has 89 states. [2018-07-23 13:52:35,686 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 91 transitions. [2018-07-23 13:52:35,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-07-23 13:52:35,687 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:35,687 INFO L357 BasicCegarLoop]: trace histogram [87, 1, 1, 1] [2018-07-23 13:52:35,687 INFO L414 AbstractCegarLoop]: === Iteration 88 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:35,687 INFO L82 PathProgramCache]: Analyzing trace with hash 912679623, now seen corresponding path program 87 times [2018-07-23 13:52:35,687 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:35,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:36,516 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 13:52:36,517 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:36,517 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [89] total 89 [2018-07-23 13:52:36,517 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:36,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:36,517 INFO L185 omatonBuilderFactory]: Interpolants [21120#(and (<= main_a_x 43) (not (= main_x main_y))), 21121#(and (<= main_a_x 44) (not (= main_x main_y))), 21122#(and (<= main_a_x 45) (not (= main_x main_y))), 21123#(and (<= main_a_x 46) (not (= main_x main_y))), 21124#(and (<= main_a_x 47) (not (= main_x main_y))), 21125#(and (<= main_a_x 48) (not (= main_x main_y))), 21126#(and (not (= main_x main_y)) (<= main_a_x 49)), 21127#(and (not (= main_x main_y)) (<= main_a_x 50)), 21128#(and (<= main_a_x 51) (not (= main_x main_y))), 21129#(and (not (= main_x main_y)) (<= main_a_x 52)), 21130#(and (<= main_a_x 53) (not (= main_x main_y))), 21131#(and (<= main_a_x 54) (not (= main_x main_y))), 21132#(and (not (= main_x main_y)) (<= main_a_x 55)), 21133#(and (not (= main_x main_y)) (<= main_a_x 56)), 21134#(and (not (= main_x main_y)) (<= main_a_x 57)), 21135#(and (not (= main_x main_y)) (<= main_a_x 58)), 21136#(and (not (= main_x main_y)) (<= main_a_x 59)), 21137#(and (<= main_a_x 60) (not (= main_x main_y))), 21138#(and (not (= main_x main_y)) (<= main_a_x 61)), 21139#(and (not (= main_x main_y)) (<= main_a_x 62)), 21140#(and (<= main_a_x 63) (not (= main_x main_y))), 21141#(and (<= main_a_x 64) (not (= main_x main_y))), 21142#(and (<= main_a_x 65) (not (= main_x main_y))), 21143#(and (<= main_a_x 66) (not (= main_x main_y))), 21144#(and (<= main_a_x 67) (not (= main_x main_y))), 21145#(and (not (= main_x main_y)) (<= main_a_x 68)), 21146#(and (<= main_a_x 69) (not (= main_x main_y))), 21147#(and (<= main_a_x 70) (not (= main_x main_y))), 21148#(and (<= main_a_x 71) (not (= main_x main_y))), 21149#(and (not (= main_x main_y)) (<= main_a_x 72)), 21150#(and (not (= main_x main_y)) (<= main_a_x 73)), 21151#(and (<= main_a_x 74) (not (= main_x main_y))), 21152#(and (<= main_a_x 75) (not (= main_x main_y))), 21153#(and (not (= main_x main_y)) (<= main_a_x 76)), 21154#(and (not (= main_x main_y)) (<= main_a_x 77)), 21155#(and (<= main_a_x 78) (not (= main_x main_y))), 21156#(and (<= main_a_x 79) (not (= main_x main_y))), 21157#(and (not (= main_x main_y)) (<= main_a_x 80)), 21158#(and (not (= main_x main_y)) (<= main_a_x 81)), 21159#(and (not (= main_x main_y)) (<= main_a_x 82)), 21160#(and (not (= main_x main_y)) (<= main_a_x 83)), 21161#(and (<= main_a_x 84) (not (= main_x main_y))), 21162#(and (not (= main_x main_y)) (<= main_a_x 85)), 21163#(and (not (= main_x main_y)) (<= main_a_x 86)), 21164#(<= main_a_x 87), 21075#true, 21076#false, 21077#(and (not (= main_x main_y)) (<= main_a_x 0)), 21078#(and (not (= main_x main_y)) (<= main_a_x 1)), 21079#(and (not (= main_x main_y)) (<= main_a_x 2)), 21080#(and (not (= main_x main_y)) (<= main_a_x 3)), 21081#(and (<= main_a_x 4) (not (= main_x main_y))), 21082#(and (<= main_a_x 5) (not (= main_x main_y))), 21083#(and (not (= main_x main_y)) (<= main_a_x 6)), 21084#(and (<= main_a_x 7) (not (= main_x main_y))), 21085#(and (not (= main_x main_y)) (<= main_a_x 8)), 21086#(and (not (= main_x main_y)) (<= main_a_x 9)), 21087#(and (<= main_a_x 10) (not (= main_x main_y))), 21088#(and (not (= main_x main_y)) (<= main_a_x 11)), 21089#(and (not (= main_x main_y)) (<= main_a_x 12)), 21090#(and (<= main_a_x 13) (not (= main_x main_y))), 21091#(and (not (= main_x main_y)) (<= main_a_x 14)), 21092#(and (<= main_a_x 15) (not (= main_x main_y))), 21093#(and (not (= main_x main_y)) (<= main_a_x 16)), 21094#(and (not (= main_x main_y)) (<= main_a_x 17)), 21095#(and (<= main_a_x 18) (not (= main_x main_y))), 21096#(and (<= main_a_x 19) (not (= main_x main_y))), 21097#(and (not (= main_x main_y)) (<= main_a_x 20)), 21098#(and (not (= main_x main_y)) (<= main_a_x 21)), 21099#(and (not (= main_x main_y)) (<= main_a_x 22)), 21100#(and (<= main_a_x 23) (not (= main_x main_y))), 21101#(and (not (= main_x main_y)) (<= main_a_x 24)), 21102#(and (<= main_a_x 25) (not (= main_x main_y))), 21103#(and (not (= main_x main_y)) (<= main_a_x 26)), 21104#(and (not (= main_x main_y)) (<= main_a_x 27)), 21105#(and (not (= main_x main_y)) (<= main_a_x 28)), 21106#(and (not (= main_x main_y)) (<= main_a_x 29)), 21107#(and (<= main_a_x 30) (not (= main_x main_y))), 21108#(and (<= main_a_x 31) (not (= main_x main_y))), 21109#(and (not (= main_x main_y)) (<= main_a_x 32)), 21110#(and (not (= main_x main_y)) (<= main_a_x 33)), 21111#(and (not (= main_x main_y)) (<= main_a_x 34)), 21112#(and (<= main_a_x 35) (not (= main_x main_y))), 21113#(and (not (= main_x main_y)) (<= main_a_x 36)), 21114#(and (<= main_a_x 37) (not (= main_x main_y))), 21115#(and (not (= main_x main_y)) (<= main_a_x 38)), 21116#(and (<= main_a_x 39) (not (= main_x main_y))), 21117#(and (<= main_a_x 40) (not (= main_x main_y))), 21118#(and (not (= main_x main_y)) (<= main_a_x 41)), 21119#(and (not (= main_x main_y)) (<= main_a_x 42))] [2018-07-23 13:52:36,518 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 13:52:36,518 INFO L450 AbstractCegarLoop]: Interpolant automaton has 90 states [2018-07-23 13:52:36,519 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2018-07-23 13:52:36,519 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4005, Invalid=4005, Unknown=0, NotChecked=0, Total=8010 [2018-07-23 13:52:36,519 INFO L87 Difference]: Start difference. First operand 91 states and 91 transitions. Second operand 90 states. [2018-07-23 13:52:36,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:36,565 INFO L93 Difference]: Finished difference Result 94 states and 94 transitions. [2018-07-23 13:52:36,566 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2018-07-23 13:52:36,566 INFO L78 Accepts]: Start accepts. Automaton has 90 states. Word has length 90 [2018-07-23 13:52:36,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:36,566 INFO L225 Difference]: With dead ends: 94 [2018-07-23 13:52:36,566 INFO L226 Difference]: Without dead ends: 92 [2018-07-23 13:52:36,567 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=4005, Invalid=4005, Unknown=0, NotChecked=0, Total=8010 [2018-07-23 13:52:36,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2018-07-23 13:52:36,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2018-07-23 13:52:36,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2018-07-23 13:52:36,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 92 transitions. [2018-07-23 13:52:36,572 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 92 transitions. Word has length 90 [2018-07-23 13:52:36,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:36,572 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 92 transitions. [2018-07-23 13:52:36,572 INFO L472 AbstractCegarLoop]: Interpolant automaton has 90 states. [2018-07-23 13:52:36,572 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 92 transitions. [2018-07-23 13:52:36,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-07-23 13:52:36,573 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:36,573 INFO L357 BasicCegarLoop]: trace histogram [88, 1, 1, 1] [2018-07-23 13:52:36,573 INFO L414 AbstractCegarLoop]: === Iteration 89 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:36,573 INFO L82 PathProgramCache]: Analyzing trace with hash -1771687380, now seen corresponding path program 88 times [2018-07-23 13:52:36,574 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:36,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:37,295 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 13:52:37,296 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:37,296 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [90] total 90 [2018-07-23 13:52:37,296 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:37,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:37,297 INFO L185 omatonBuilderFactory]: Interpolants [21537#true, 21538#false, 21539#(and (not (= main_x main_y)) (<= main_a_x 0)), 21540#(and (not (= main_x main_y)) (<= main_a_x 1)), 21541#(and (not (= main_x main_y)) (<= main_a_x 2)), 21542#(and (not (= main_x main_y)) (<= main_a_x 3)), 21543#(and (<= main_a_x 4) (not (= main_x main_y))), 21544#(and (<= main_a_x 5) (not (= main_x main_y))), 21545#(and (not (= main_x main_y)) (<= main_a_x 6)), 21546#(and (<= main_a_x 7) (not (= main_x main_y))), 21547#(and (not (= main_x main_y)) (<= main_a_x 8)), 21548#(and (not (= main_x main_y)) (<= main_a_x 9)), 21549#(and (<= main_a_x 10) (not (= main_x main_y))), 21550#(and (not (= main_x main_y)) (<= main_a_x 11)), 21551#(and (not (= main_x main_y)) (<= main_a_x 12)), 21552#(and (<= main_a_x 13) (not (= main_x main_y))), 21553#(and (not (= main_x main_y)) (<= main_a_x 14)), 21554#(and (<= main_a_x 15) (not (= main_x main_y))), 21555#(and (not (= main_x main_y)) (<= main_a_x 16)), 21556#(and (not (= main_x main_y)) (<= main_a_x 17)), 21557#(and (<= main_a_x 18) (not (= main_x main_y))), 21558#(and (<= main_a_x 19) (not (= main_x main_y))), 21559#(and (not (= main_x main_y)) (<= main_a_x 20)), 21560#(and (not (= main_x main_y)) (<= main_a_x 21)), 21561#(and (not (= main_x main_y)) (<= main_a_x 22)), 21562#(and (<= main_a_x 23) (not (= main_x main_y))), 21563#(and (not (= main_x main_y)) (<= main_a_x 24)), 21564#(and (<= main_a_x 25) (not (= main_x main_y))), 21565#(and (not (= main_x main_y)) (<= main_a_x 26)), 21566#(and (not (= main_x main_y)) (<= main_a_x 27)), 21567#(and (not (= main_x main_y)) (<= main_a_x 28)), 21568#(and (not (= main_x main_y)) (<= main_a_x 29)), 21569#(and (<= main_a_x 30) (not (= main_x main_y))), 21570#(and (<= main_a_x 31) (not (= main_x main_y))), 21571#(and (not (= main_x main_y)) (<= main_a_x 32)), 21572#(and (not (= main_x main_y)) (<= main_a_x 33)), 21573#(and (not (= main_x main_y)) (<= main_a_x 34)), 21574#(and (<= main_a_x 35) (not (= main_x main_y))), 21575#(and (not (= main_x main_y)) (<= main_a_x 36)), 21576#(and (<= main_a_x 37) (not (= main_x main_y))), 21577#(and (not (= main_x main_y)) (<= main_a_x 38)), 21578#(and (<= main_a_x 39) (not (= main_x main_y))), 21579#(and (<= main_a_x 40) (not (= main_x main_y))), 21580#(and (not (= main_x main_y)) (<= main_a_x 41)), 21581#(and (not (= main_x main_y)) (<= main_a_x 42)), 21582#(and (<= main_a_x 43) (not (= main_x main_y))), 21583#(and (<= main_a_x 44) (not (= main_x main_y))), 21584#(and (<= main_a_x 45) (not (= main_x main_y))), 21585#(and (<= main_a_x 46) (not (= main_x main_y))), 21586#(and (<= main_a_x 47) (not (= main_x main_y))), 21587#(and (<= main_a_x 48) (not (= main_x main_y))), 21588#(and (not (= main_x main_y)) (<= main_a_x 49)), 21589#(and (not (= main_x main_y)) (<= main_a_x 50)), 21590#(and (<= main_a_x 51) (not (= main_x main_y))), 21591#(and (not (= main_x main_y)) (<= main_a_x 52)), 21592#(and (<= main_a_x 53) (not (= main_x main_y))), 21593#(and (<= main_a_x 54) (not (= main_x main_y))), 21594#(and (not (= main_x main_y)) (<= main_a_x 55)), 21595#(and (not (= main_x main_y)) (<= main_a_x 56)), 21596#(and (not (= main_x main_y)) (<= main_a_x 57)), 21597#(and (not (= main_x main_y)) (<= main_a_x 58)), 21598#(and (not (= main_x main_y)) (<= main_a_x 59)), 21599#(and (<= main_a_x 60) (not (= main_x main_y))), 21600#(and (not (= main_x main_y)) (<= main_a_x 61)), 21601#(and (not (= main_x main_y)) (<= main_a_x 62)), 21602#(and (<= main_a_x 63) (not (= main_x main_y))), 21603#(and (<= main_a_x 64) (not (= main_x main_y))), 21604#(and (<= main_a_x 65) (not (= main_x main_y))), 21605#(and (<= main_a_x 66) (not (= main_x main_y))), 21606#(and (<= main_a_x 67) (not (= main_x main_y))), 21607#(and (not (= main_x main_y)) (<= main_a_x 68)), 21608#(and (<= main_a_x 69) (not (= main_x main_y))), 21609#(and (<= main_a_x 70) (not (= main_x main_y))), 21610#(and (<= main_a_x 71) (not (= main_x main_y))), 21611#(and (not (= main_x main_y)) (<= main_a_x 72)), 21612#(and (not (= main_x main_y)) (<= main_a_x 73)), 21613#(and (<= main_a_x 74) (not (= main_x main_y))), 21614#(and (<= main_a_x 75) (not (= main_x main_y))), 21615#(and (not (= main_x main_y)) (<= main_a_x 76)), 21616#(and (not (= main_x main_y)) (<= main_a_x 77)), 21617#(and (<= main_a_x 78) (not (= main_x main_y))), 21618#(and (<= main_a_x 79) (not (= main_x main_y))), 21619#(and (not (= main_x main_y)) (<= main_a_x 80)), 21620#(and (not (= main_x main_y)) (<= main_a_x 81)), 21621#(and (not (= main_x main_y)) (<= main_a_x 82)), 21622#(and (not (= main_x main_y)) (<= main_a_x 83)), 21623#(and (<= main_a_x 84) (not (= main_x main_y))), 21624#(and (not (= main_x main_y)) (<= main_a_x 85)), 21625#(and (not (= main_x main_y)) (<= main_a_x 86)), 21626#(and (<= main_a_x 87) (not (= main_x main_y))), 21627#(<= main_a_x 88)] [2018-07-23 13:52:37,297 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 13:52:37,297 INFO L450 AbstractCegarLoop]: Interpolant automaton has 91 states [2018-07-23 13:52:37,298 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2018-07-23 13:52:37,298 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4095, Invalid=4095, Unknown=0, NotChecked=0, Total=8190 [2018-07-23 13:52:37,299 INFO L87 Difference]: Start difference. First operand 92 states and 92 transitions. Second operand 91 states. [2018-07-23 13:52:37,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:37,380 INFO L93 Difference]: Finished difference Result 95 states and 95 transitions. [2018-07-23 13:52:37,380 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2018-07-23 13:52:37,380 INFO L78 Accepts]: Start accepts. Automaton has 91 states. Word has length 91 [2018-07-23 13:52:37,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:37,381 INFO L225 Difference]: With dead ends: 95 [2018-07-23 13:52:37,381 INFO L226 Difference]: Without dead ends: 93 [2018-07-23 13:52:37,382 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=4095, Invalid=4095, Unknown=0, NotChecked=0, Total=8190 [2018-07-23 13:52:37,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2018-07-23 13:52:37,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2018-07-23 13:52:37,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2018-07-23 13:52:37,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 93 transitions. [2018-07-23 13:52:37,386 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 93 transitions. Word has length 91 [2018-07-23 13:52:37,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:37,386 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 93 transitions. [2018-07-23 13:52:37,387 INFO L472 AbstractCegarLoop]: Interpolant automaton has 91 states. [2018-07-23 13:52:37,387 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 93 transitions. [2018-07-23 13:52:37,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-07-23 13:52:37,387 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:37,387 INFO L357 BasicCegarLoop]: trace histogram [89, 1, 1, 1] [2018-07-23 13:52:37,387 INFO L414 AbstractCegarLoop]: === Iteration 90 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:37,388 INFO L82 PathProgramCache]: Analyzing trace with hash 912281447, now seen corresponding path program 89 times [2018-07-23 13:52:37,388 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:37,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:38,141 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 13:52:38,141 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:38,141 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [91] total 91 [2018-07-23 13:52:38,141 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:38,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:38,142 INFO L185 omatonBuilderFactory]: Interpolants [22016#(and (<= main_a_x 10) (not (= main_x main_y))), 22017#(and (not (= main_x main_y)) (<= main_a_x 11)), 22018#(and (not (= main_x main_y)) (<= main_a_x 12)), 22019#(and (<= main_a_x 13) (not (= main_x main_y))), 22020#(and (not (= main_x main_y)) (<= main_a_x 14)), 22021#(and (<= main_a_x 15) (not (= main_x main_y))), 22022#(and (not (= main_x main_y)) (<= main_a_x 16)), 22023#(and (not (= main_x main_y)) (<= main_a_x 17)), 22024#(and (<= main_a_x 18) (not (= main_x main_y))), 22025#(and (<= main_a_x 19) (not (= main_x main_y))), 22026#(and (not (= main_x main_y)) (<= main_a_x 20)), 22027#(and (not (= main_x main_y)) (<= main_a_x 21)), 22028#(and (not (= main_x main_y)) (<= main_a_x 22)), 22029#(and (<= main_a_x 23) (not (= main_x main_y))), 22030#(and (not (= main_x main_y)) (<= main_a_x 24)), 22031#(and (<= main_a_x 25) (not (= main_x main_y))), 22032#(and (not (= main_x main_y)) (<= main_a_x 26)), 22033#(and (not (= main_x main_y)) (<= main_a_x 27)), 22034#(and (not (= main_x main_y)) (<= main_a_x 28)), 22035#(and (not (= main_x main_y)) (<= main_a_x 29)), 22036#(and (<= main_a_x 30) (not (= main_x main_y))), 22037#(and (<= main_a_x 31) (not (= main_x main_y))), 22038#(and (not (= main_x main_y)) (<= main_a_x 32)), 22039#(and (not (= main_x main_y)) (<= main_a_x 33)), 22040#(and (not (= main_x main_y)) (<= main_a_x 34)), 22041#(and (<= main_a_x 35) (not (= main_x main_y))), 22042#(and (not (= main_x main_y)) (<= main_a_x 36)), 22043#(and (<= main_a_x 37) (not (= main_x main_y))), 22044#(and (not (= main_x main_y)) (<= main_a_x 38)), 22045#(and (<= main_a_x 39) (not (= main_x main_y))), 22046#(and (<= main_a_x 40) (not (= main_x main_y))), 22047#(and (not (= main_x main_y)) (<= main_a_x 41)), 22048#(and (not (= main_x main_y)) (<= main_a_x 42)), 22049#(and (<= main_a_x 43) (not (= main_x main_y))), 22050#(and (<= main_a_x 44) (not (= main_x main_y))), 22051#(and (<= main_a_x 45) (not (= main_x main_y))), 22052#(and (<= main_a_x 46) (not (= main_x main_y))), 22053#(and (<= main_a_x 47) (not (= main_x main_y))), 22054#(and (<= main_a_x 48) (not (= main_x main_y))), 22055#(and (not (= main_x main_y)) (<= main_a_x 49)), 22056#(and (not (= main_x main_y)) (<= main_a_x 50)), 22057#(and (<= main_a_x 51) (not (= main_x main_y))), 22058#(and (not (= main_x main_y)) (<= main_a_x 52)), 22059#(and (<= main_a_x 53) (not (= main_x main_y))), 22060#(and (<= main_a_x 54) (not (= main_x main_y))), 22061#(and (not (= main_x main_y)) (<= main_a_x 55)), 22062#(and (not (= main_x main_y)) (<= main_a_x 56)), 22063#(and (not (= main_x main_y)) (<= main_a_x 57)), 22064#(and (not (= main_x main_y)) (<= main_a_x 58)), 22065#(and (not (= main_x main_y)) (<= main_a_x 59)), 22066#(and (<= main_a_x 60) (not (= main_x main_y))), 22067#(and (not (= main_x main_y)) (<= main_a_x 61)), 22068#(and (not (= main_x main_y)) (<= main_a_x 62)), 22069#(and (<= main_a_x 63) (not (= main_x main_y))), 22070#(and (<= main_a_x 64) (not (= main_x main_y))), 22071#(and (<= main_a_x 65) (not (= main_x main_y))), 22072#(and (<= main_a_x 66) (not (= main_x main_y))), 22073#(and (<= main_a_x 67) (not (= main_x main_y))), 22074#(and (not (= main_x main_y)) (<= main_a_x 68)), 22075#(and (<= main_a_x 69) (not (= main_x main_y))), 22076#(and (<= main_a_x 70) (not (= main_x main_y))), 22077#(and (<= main_a_x 71) (not (= main_x main_y))), 22078#(and (not (= main_x main_y)) (<= main_a_x 72)), 22079#(and (not (= main_x main_y)) (<= main_a_x 73)), 22080#(and (<= main_a_x 74) (not (= main_x main_y))), 22081#(and (<= main_a_x 75) (not (= main_x main_y))), 22082#(and (not (= main_x main_y)) (<= main_a_x 76)), 22083#(and (not (= main_x main_y)) (<= main_a_x 77)), 22084#(and (<= main_a_x 78) (not (= main_x main_y))), 22085#(and (<= main_a_x 79) (not (= main_x main_y))), 22086#(and (not (= main_x main_y)) (<= main_a_x 80)), 22087#(and (not (= main_x main_y)) (<= main_a_x 81)), 22088#(and (not (= main_x main_y)) (<= main_a_x 82)), 22089#(and (not (= main_x main_y)) (<= main_a_x 83)), 22090#(and (<= main_a_x 84) (not (= main_x main_y))), 22091#(and (not (= main_x main_y)) (<= main_a_x 85)), 22092#(and (not (= main_x main_y)) (<= main_a_x 86)), 22093#(and (<= main_a_x 87) (not (= main_x main_y))), 22094#(and (not (= main_x main_y)) (<= main_a_x 88)), 22095#(<= main_a_x 89), 22004#true, 22005#false, 22006#(and (not (= main_x main_y)) (<= main_a_x 0)), 22007#(and (not (= main_x main_y)) (<= main_a_x 1)), 22008#(and (not (= main_x main_y)) (<= main_a_x 2)), 22009#(and (not (= main_x main_y)) (<= main_a_x 3)), 22010#(and (<= main_a_x 4) (not (= main_x main_y))), 22011#(and (<= main_a_x 5) (not (= main_x main_y))), 22012#(and (not (= main_x main_y)) (<= main_a_x 6)), 22013#(and (<= main_a_x 7) (not (= main_x main_y))), 22014#(and (not (= main_x main_y)) (<= main_a_x 8)), 22015#(and (not (= main_x main_y)) (<= main_a_x 9))] [2018-07-23 13:52:38,142 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 13:52:38,143 INFO L450 AbstractCegarLoop]: Interpolant automaton has 92 states [2018-07-23 13:52:38,143 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2018-07-23 13:52:38,144 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4186, Invalid=4186, Unknown=0, NotChecked=0, Total=8372 [2018-07-23 13:52:38,144 INFO L87 Difference]: Start difference. First operand 93 states and 93 transitions. Second operand 92 states. [2018-07-23 13:52:38,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:38,243 INFO L93 Difference]: Finished difference Result 96 states and 96 transitions. [2018-07-23 13:52:38,243 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2018-07-23 13:52:38,243 INFO L78 Accepts]: Start accepts. Automaton has 92 states. Word has length 92 [2018-07-23 13:52:38,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:38,244 INFO L225 Difference]: With dead ends: 96 [2018-07-23 13:52:38,244 INFO L226 Difference]: Without dead ends: 94 [2018-07-23 13:52:38,245 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=4186, Invalid=4186, Unknown=0, NotChecked=0, Total=8372 [2018-07-23 13:52:38,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2018-07-23 13:52:38,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2018-07-23 13:52:38,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2018-07-23 13:52:38,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 94 transitions. [2018-07-23 13:52:38,249 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 94 transitions. Word has length 92 [2018-07-23 13:52:38,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:38,249 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 94 transitions. [2018-07-23 13:52:38,249 INFO L472 AbstractCegarLoop]: Interpolant automaton has 92 states. [2018-07-23 13:52:38,249 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 94 transitions. [2018-07-23 13:52:38,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-07-23 13:52:38,249 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:38,250 INFO L357 BasicCegarLoop]: trace histogram [90, 1, 1, 1] [2018-07-23 13:52:38,250 INFO L414 AbstractCegarLoop]: === Iteration 91 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:38,250 INFO L82 PathProgramCache]: Analyzing trace with hash -1784030836, now seen corresponding path program 90 times [2018-07-23 13:52:38,250 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:38,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:39,090 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 13:52:39,090 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:39,090 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [92] total 92 [2018-07-23 13:52:39,091 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:39,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:39,091 INFO L185 omatonBuilderFactory]: Interpolants [22528#(and (not (= main_x main_y)) (<= main_a_x 50)), 22529#(and (<= main_a_x 51) (not (= main_x main_y))), 22530#(and (not (= main_x main_y)) (<= main_a_x 52)), 22531#(and (<= main_a_x 53) (not (= main_x main_y))), 22532#(and (<= main_a_x 54) (not (= main_x main_y))), 22533#(and (not (= main_x main_y)) (<= main_a_x 55)), 22534#(and (not (= main_x main_y)) (<= main_a_x 56)), 22535#(and (not (= main_x main_y)) (<= main_a_x 57)), 22536#(and (not (= main_x main_y)) (<= main_a_x 58)), 22537#(and (not (= main_x main_y)) (<= main_a_x 59)), 22538#(and (<= main_a_x 60) (not (= main_x main_y))), 22539#(and (not (= main_x main_y)) (<= main_a_x 61)), 22540#(and (not (= main_x main_y)) (<= main_a_x 62)), 22541#(and (<= main_a_x 63) (not (= main_x main_y))), 22542#(and (<= main_a_x 64) (not (= main_x main_y))), 22543#(and (<= main_a_x 65) (not (= main_x main_y))), 22544#(and (<= main_a_x 66) (not (= main_x main_y))), 22545#(and (<= main_a_x 67) (not (= main_x main_y))), 22546#(and (not (= main_x main_y)) (<= main_a_x 68)), 22547#(and (<= main_a_x 69) (not (= main_x main_y))), 22548#(and (<= main_a_x 70) (not (= main_x main_y))), 22549#(and (<= main_a_x 71) (not (= main_x main_y))), 22550#(and (not (= main_x main_y)) (<= main_a_x 72)), 22551#(and (not (= main_x main_y)) (<= main_a_x 73)), 22552#(and (<= main_a_x 74) (not (= main_x main_y))), 22553#(and (<= main_a_x 75) (not (= main_x main_y))), 22554#(and (not (= main_x main_y)) (<= main_a_x 76)), 22555#(and (not (= main_x main_y)) (<= main_a_x 77)), 22556#(and (<= main_a_x 78) (not (= main_x main_y))), 22557#(and (<= main_a_x 79) (not (= main_x main_y))), 22558#(and (not (= main_x main_y)) (<= main_a_x 80)), 22559#(and (not (= main_x main_y)) (<= main_a_x 81)), 22560#(and (not (= main_x main_y)) (<= main_a_x 82)), 22561#(and (not (= main_x main_y)) (<= main_a_x 83)), 22562#(and (<= main_a_x 84) (not (= main_x main_y))), 22563#(and (not (= main_x main_y)) (<= main_a_x 85)), 22564#(and (not (= main_x main_y)) (<= main_a_x 86)), 22565#(and (<= main_a_x 87) (not (= main_x main_y))), 22566#(and (not (= main_x main_y)) (<= main_a_x 88)), 22567#(and (<= main_a_x 89) (not (= main_x main_y))), 22568#(<= main_a_x 90), 22476#true, 22477#false, 22478#(and (not (= main_x main_y)) (<= main_a_x 0)), 22479#(and (not (= main_x main_y)) (<= main_a_x 1)), 22480#(and (not (= main_x main_y)) (<= main_a_x 2)), 22481#(and (not (= main_x main_y)) (<= main_a_x 3)), 22482#(and (<= main_a_x 4) (not (= main_x main_y))), 22483#(and (<= main_a_x 5) (not (= main_x main_y))), 22484#(and (not (= main_x main_y)) (<= main_a_x 6)), 22485#(and (<= main_a_x 7) (not (= main_x main_y))), 22486#(and (not (= main_x main_y)) (<= main_a_x 8)), 22487#(and (not (= main_x main_y)) (<= main_a_x 9)), 22488#(and (<= main_a_x 10) (not (= main_x main_y))), 22489#(and (not (= main_x main_y)) (<= main_a_x 11)), 22490#(and (not (= main_x main_y)) (<= main_a_x 12)), 22491#(and (<= main_a_x 13) (not (= main_x main_y))), 22492#(and (not (= main_x main_y)) (<= main_a_x 14)), 22493#(and (<= main_a_x 15) (not (= main_x main_y))), 22494#(and (not (= main_x main_y)) (<= main_a_x 16)), 22495#(and (not (= main_x main_y)) (<= main_a_x 17)), 22496#(and (<= main_a_x 18) (not (= main_x main_y))), 22497#(and (<= main_a_x 19) (not (= main_x main_y))), 22498#(and (not (= main_x main_y)) (<= main_a_x 20)), 22499#(and (not (= main_x main_y)) (<= main_a_x 21)), 22500#(and (not (= main_x main_y)) (<= main_a_x 22)), 22501#(and (<= main_a_x 23) (not (= main_x main_y))), 22502#(and (not (= main_x main_y)) (<= main_a_x 24)), 22503#(and (<= main_a_x 25) (not (= main_x main_y))), 22504#(and (not (= main_x main_y)) (<= main_a_x 26)), 22505#(and (not (= main_x main_y)) (<= main_a_x 27)), 22506#(and (not (= main_x main_y)) (<= main_a_x 28)), 22507#(and (not (= main_x main_y)) (<= main_a_x 29)), 22508#(and (<= main_a_x 30) (not (= main_x main_y))), 22509#(and (<= main_a_x 31) (not (= main_x main_y))), 22510#(and (not (= main_x main_y)) (<= main_a_x 32)), 22511#(and (not (= main_x main_y)) (<= main_a_x 33)), 22512#(and (not (= main_x main_y)) (<= main_a_x 34)), 22513#(and (<= main_a_x 35) (not (= main_x main_y))), 22514#(and (not (= main_x main_y)) (<= main_a_x 36)), 22515#(and (<= main_a_x 37) (not (= main_x main_y))), 22516#(and (not (= main_x main_y)) (<= main_a_x 38)), 22517#(and (<= main_a_x 39) (not (= main_x main_y))), 22518#(and (<= main_a_x 40) (not (= main_x main_y))), 22519#(and (not (= main_x main_y)) (<= main_a_x 41)), 22520#(and (not (= main_x main_y)) (<= main_a_x 42)), 22521#(and (<= main_a_x 43) (not (= main_x main_y))), 22522#(and (<= main_a_x 44) (not (= main_x main_y))), 22523#(and (<= main_a_x 45) (not (= main_x main_y))), 22524#(and (<= main_a_x 46) (not (= main_x main_y))), 22525#(and (<= main_a_x 47) (not (= main_x main_y))), 22526#(and (<= main_a_x 48) (not (= main_x main_y))), 22527#(and (not (= main_x main_y)) (<= main_a_x 49))] [2018-07-23 13:52:39,091 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 13:52:39,091 INFO L450 AbstractCegarLoop]: Interpolant automaton has 93 states [2018-07-23 13:52:39,092 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 93 interpolants. [2018-07-23 13:52:39,093 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4278, Invalid=4278, Unknown=0, NotChecked=0, Total=8556 [2018-07-23 13:52:39,093 INFO L87 Difference]: Start difference. First operand 94 states and 94 transitions. Second operand 93 states. [2018-07-23 13:52:39,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:39,132 INFO L93 Difference]: Finished difference Result 97 states and 97 transitions. [2018-07-23 13:52:39,132 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2018-07-23 13:52:39,132 INFO L78 Accepts]: Start accepts. Automaton has 93 states. Word has length 93 [2018-07-23 13:52:39,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:39,133 INFO L225 Difference]: With dead ends: 97 [2018-07-23 13:52:39,133 INFO L226 Difference]: Without dead ends: 95 [2018-07-23 13:52:39,134 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=4278, Invalid=4278, Unknown=0, NotChecked=0, Total=8556 [2018-07-23 13:52:39,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2018-07-23 13:52:39,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2018-07-23 13:52:39,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2018-07-23 13:52:39,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 95 transitions. [2018-07-23 13:52:39,138 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 95 transitions. Word has length 93 [2018-07-23 13:52:39,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:39,138 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 95 transitions. [2018-07-23 13:52:39,138 INFO L472 AbstractCegarLoop]: Interpolant automaton has 93 states. [2018-07-23 13:52:39,139 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 95 transitions. [2018-07-23 13:52:39,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-07-23 13:52:39,139 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:39,140 INFO L357 BasicCegarLoop]: trace histogram [91, 1, 1, 1] [2018-07-23 13:52:39,140 INFO L414 AbstractCegarLoop]: === Iteration 92 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:39,140 INFO L82 PathProgramCache]: Analyzing trace with hash 529634311, now seen corresponding path program 91 times [2018-07-23 13:52:39,140 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:39,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:40,132 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 13:52:40,132 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:40,132 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [93] total 93 [2018-07-23 13:52:40,132 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:40,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:40,133 INFO L185 omatonBuilderFactory]: Interpolants [23040#(and (not (= main_x main_y)) (<= main_a_x 85)), 23041#(and (not (= main_x main_y)) (<= main_a_x 86)), 23042#(and (<= main_a_x 87) (not (= main_x main_y))), 23043#(and (not (= main_x main_y)) (<= main_a_x 88)), 23044#(and (<= main_a_x 89) (not (= main_x main_y))), 23045#(and (not (= main_x main_y)) (<= main_a_x 90)), 23046#(<= main_a_x 91), 22953#true, 22954#false, 22955#(and (not (= main_x main_y)) (<= main_a_x 0)), 22956#(and (not (= main_x main_y)) (<= main_a_x 1)), 22957#(and (not (= main_x main_y)) (<= main_a_x 2)), 22958#(and (not (= main_x main_y)) (<= main_a_x 3)), 22959#(and (<= main_a_x 4) (not (= main_x main_y))), 22960#(and (<= main_a_x 5) (not (= main_x main_y))), 22961#(and (not (= main_x main_y)) (<= main_a_x 6)), 22962#(and (<= main_a_x 7) (not (= main_x main_y))), 22963#(and (not (= main_x main_y)) (<= main_a_x 8)), 22964#(and (not (= main_x main_y)) (<= main_a_x 9)), 22965#(and (<= main_a_x 10) (not (= main_x main_y))), 22966#(and (not (= main_x main_y)) (<= main_a_x 11)), 22967#(and (not (= main_x main_y)) (<= main_a_x 12)), 22968#(and (<= main_a_x 13) (not (= main_x main_y))), 22969#(and (not (= main_x main_y)) (<= main_a_x 14)), 22970#(and (<= main_a_x 15) (not (= main_x main_y))), 22971#(and (not (= main_x main_y)) (<= main_a_x 16)), 22972#(and (not (= main_x main_y)) (<= main_a_x 17)), 22973#(and (<= main_a_x 18) (not (= main_x main_y))), 22974#(and (<= main_a_x 19) (not (= main_x main_y))), 22975#(and (not (= main_x main_y)) (<= main_a_x 20)), 22976#(and (not (= main_x main_y)) (<= main_a_x 21)), 22977#(and (not (= main_x main_y)) (<= main_a_x 22)), 22978#(and (<= main_a_x 23) (not (= main_x main_y))), 22979#(and (not (= main_x main_y)) (<= main_a_x 24)), 22980#(and (<= main_a_x 25) (not (= main_x main_y))), 22981#(and (not (= main_x main_y)) (<= main_a_x 26)), 22982#(and (not (= main_x main_y)) (<= main_a_x 27)), 22983#(and (not (= main_x main_y)) (<= main_a_x 28)), 22984#(and (not (= main_x main_y)) (<= main_a_x 29)), 22985#(and (<= main_a_x 30) (not (= main_x main_y))), 22986#(and (<= main_a_x 31) (not (= main_x main_y))), 22987#(and (not (= main_x main_y)) (<= main_a_x 32)), 22988#(and (not (= main_x main_y)) (<= main_a_x 33)), 22989#(and (not (= main_x main_y)) (<= main_a_x 34)), 22990#(and (<= main_a_x 35) (not (= main_x main_y))), 22991#(and (not (= main_x main_y)) (<= main_a_x 36)), 22992#(and (<= main_a_x 37) (not (= main_x main_y))), 22993#(and (not (= main_x main_y)) (<= main_a_x 38)), 22994#(and (<= main_a_x 39) (not (= main_x main_y))), 22995#(and (<= main_a_x 40) (not (= main_x main_y))), 22996#(and (not (= main_x main_y)) (<= main_a_x 41)), 22997#(and (not (= main_x main_y)) (<= main_a_x 42)), 22998#(and (<= main_a_x 43) (not (= main_x main_y))), 22999#(and (<= main_a_x 44) (not (= main_x main_y))), 23000#(and (<= main_a_x 45) (not (= main_x main_y))), 23001#(and (<= main_a_x 46) (not (= main_x main_y))), 23002#(and (<= main_a_x 47) (not (= main_x main_y))), 23003#(and (<= main_a_x 48) (not (= main_x main_y))), 23004#(and (not (= main_x main_y)) (<= main_a_x 49)), 23005#(and (not (= main_x main_y)) (<= main_a_x 50)), 23006#(and (<= main_a_x 51) (not (= main_x main_y))), 23007#(and (not (= main_x main_y)) (<= main_a_x 52)), 23008#(and (<= main_a_x 53) (not (= main_x main_y))), 23009#(and (<= main_a_x 54) (not (= main_x main_y))), 23010#(and (not (= main_x main_y)) (<= main_a_x 55)), 23011#(and (not (= main_x main_y)) (<= main_a_x 56)), 23012#(and (not (= main_x main_y)) (<= main_a_x 57)), 23013#(and (not (= main_x main_y)) (<= main_a_x 58)), 23014#(and (not (= main_x main_y)) (<= main_a_x 59)), 23015#(and (<= main_a_x 60) (not (= main_x main_y))), 23016#(and (not (= main_x main_y)) (<= main_a_x 61)), 23017#(and (not (= main_x main_y)) (<= main_a_x 62)), 23018#(and (<= main_a_x 63) (not (= main_x main_y))), 23019#(and (<= main_a_x 64) (not (= main_x main_y))), 23020#(and (<= main_a_x 65) (not (= main_x main_y))), 23021#(and (<= main_a_x 66) (not (= main_x main_y))), 23022#(and (<= main_a_x 67) (not (= main_x main_y))), 23023#(and (not (= main_x main_y)) (<= main_a_x 68)), 23024#(and (<= main_a_x 69) (not (= main_x main_y))), 23025#(and (<= main_a_x 70) (not (= main_x main_y))), 23026#(and (<= main_a_x 71) (not (= main_x main_y))), 23027#(and (not (= main_x main_y)) (<= main_a_x 72)), 23028#(and (not (= main_x main_y)) (<= main_a_x 73)), 23029#(and (<= main_a_x 74) (not (= main_x main_y))), 23030#(and (<= main_a_x 75) (not (= main_x main_y))), 23031#(and (not (= main_x main_y)) (<= main_a_x 76)), 23032#(and (not (= main_x main_y)) (<= main_a_x 77)), 23033#(and (<= main_a_x 78) (not (= main_x main_y))), 23034#(and (<= main_a_x 79) (not (= main_x main_y))), 23035#(and (not (= main_x main_y)) (<= main_a_x 80)), 23036#(and (not (= main_x main_y)) (<= main_a_x 81)), 23037#(and (not (= main_x main_y)) (<= main_a_x 82)), 23038#(and (not (= main_x main_y)) (<= main_a_x 83)), 23039#(and (<= main_a_x 84) (not (= main_x main_y)))] [2018-07-23 13:52:40,133 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 13:52:40,133 INFO L450 AbstractCegarLoop]: Interpolant automaton has 94 states [2018-07-23 13:52:40,134 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2018-07-23 13:52:40,134 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4371, Invalid=4371, Unknown=0, NotChecked=0, Total=8742 [2018-07-23 13:52:40,134 INFO L87 Difference]: Start difference. First operand 95 states and 95 transitions. Second operand 94 states. [2018-07-23 13:52:40,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:40,192 INFO L93 Difference]: Finished difference Result 98 states and 98 transitions. [2018-07-23 13:52:40,192 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2018-07-23 13:52:40,192 INFO L78 Accepts]: Start accepts. Automaton has 94 states. Word has length 94 [2018-07-23 13:52:40,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:40,193 INFO L225 Difference]: With dead ends: 98 [2018-07-23 13:52:40,193 INFO L226 Difference]: Without dead ends: 96 [2018-07-23 13:52:40,194 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 13:52:40,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2018-07-23 13:52:40,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2018-07-23 13:52:40,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2018-07-23 13:52:40,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 96 transitions. [2018-07-23 13:52:40,199 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 96 transitions. Word has length 94 [2018-07-23 13:52:40,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:40,200 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 96 transitions. [2018-07-23 13:52:40,200 INFO L472 AbstractCegarLoop]: Interpolant automaton has 94 states. [2018-07-23 13:52:40,200 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 96 transitions. [2018-07-23 13:52:40,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2018-07-23 13:52:40,200 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:40,201 INFO L357 BasicCegarLoop]: trace histogram [92, 1, 1, 1] [2018-07-23 13:52:40,201 INFO L414 AbstractCegarLoop]: === Iteration 93 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:40,201 INFO L82 PathProgramCache]: Analyzing trace with hash -761190164, now seen corresponding path program 92 times [2018-07-23 13:52:40,201 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:40,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:40,977 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 13:52:40,977 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:40,977 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [94] total 94 [2018-07-23 13:52:40,978 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:40,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:40,978 INFO L185 omatonBuilderFactory]: Interpolants [23435#true, 23436#false, 23437#(and (not (= main_x main_y)) (<= main_a_x 0)), 23438#(and (not (= main_x main_y)) (<= main_a_x 1)), 23439#(and (not (= main_x main_y)) (<= main_a_x 2)), 23440#(and (not (= main_x main_y)) (<= main_a_x 3)), 23441#(and (<= main_a_x 4) (not (= main_x main_y))), 23442#(and (<= main_a_x 5) (not (= main_x main_y))), 23443#(and (not (= main_x main_y)) (<= main_a_x 6)), 23444#(and (<= main_a_x 7) (not (= main_x main_y))), 23445#(and (not (= main_x main_y)) (<= main_a_x 8)), 23446#(and (not (= main_x main_y)) (<= main_a_x 9)), 23447#(and (<= main_a_x 10) (not (= main_x main_y))), 23448#(and (not (= main_x main_y)) (<= main_a_x 11)), 23449#(and (not (= main_x main_y)) (<= main_a_x 12)), 23450#(and (<= main_a_x 13) (not (= main_x main_y))), 23451#(and (not (= main_x main_y)) (<= main_a_x 14)), 23452#(and (<= main_a_x 15) (not (= main_x main_y))), 23453#(and (not (= main_x main_y)) (<= main_a_x 16)), 23454#(and (not (= main_x main_y)) (<= main_a_x 17)), 23455#(and (<= main_a_x 18) (not (= main_x main_y))), 23456#(and (<= main_a_x 19) (not (= main_x main_y))), 23457#(and (not (= main_x main_y)) (<= main_a_x 20)), 23458#(and (not (= main_x main_y)) (<= main_a_x 21)), 23459#(and (not (= main_x main_y)) (<= main_a_x 22)), 23460#(and (<= main_a_x 23) (not (= main_x main_y))), 23461#(and (not (= main_x main_y)) (<= main_a_x 24)), 23462#(and (<= main_a_x 25) (not (= main_x main_y))), 23463#(and (not (= main_x main_y)) (<= main_a_x 26)), 23464#(and (not (= main_x main_y)) (<= main_a_x 27)), 23465#(and (not (= main_x main_y)) (<= main_a_x 28)), 23466#(and (not (= main_x main_y)) (<= main_a_x 29)), 23467#(and (<= main_a_x 30) (not (= main_x main_y))), 23468#(and (<= main_a_x 31) (not (= main_x main_y))), 23469#(and (not (= main_x main_y)) (<= main_a_x 32)), 23470#(and (not (= main_x main_y)) (<= main_a_x 33)), 23471#(and (not (= main_x main_y)) (<= main_a_x 34)), 23472#(and (<= main_a_x 35) (not (= main_x main_y))), 23473#(and (not (= main_x main_y)) (<= main_a_x 36)), 23474#(and (<= main_a_x 37) (not (= main_x main_y))), 23475#(and (not (= main_x main_y)) (<= main_a_x 38)), 23476#(and (<= main_a_x 39) (not (= main_x main_y))), 23477#(and (<= main_a_x 40) (not (= main_x main_y))), 23478#(and (not (= main_x main_y)) (<= main_a_x 41)), 23479#(and (not (= main_x main_y)) (<= main_a_x 42)), 23480#(and (<= main_a_x 43) (not (= main_x main_y))), 23481#(and (<= main_a_x 44) (not (= main_x main_y))), 23482#(and (<= main_a_x 45) (not (= main_x main_y))), 23483#(and (<= main_a_x 46) (not (= main_x main_y))), 23484#(and (<= main_a_x 47) (not (= main_x main_y))), 23485#(and (<= main_a_x 48) (not (= main_x main_y))), 23486#(and (not (= main_x main_y)) (<= main_a_x 49)), 23487#(and (not (= main_x main_y)) (<= main_a_x 50)), 23488#(and (<= main_a_x 51) (not (= main_x main_y))), 23489#(and (not (= main_x main_y)) (<= main_a_x 52)), 23490#(and (<= main_a_x 53) (not (= main_x main_y))), 23491#(and (<= main_a_x 54) (not (= main_x main_y))), 23492#(and (not (= main_x main_y)) (<= main_a_x 55)), 23493#(and (not (= main_x main_y)) (<= main_a_x 56)), 23494#(and (not (= main_x main_y)) (<= main_a_x 57)), 23495#(and (not (= main_x main_y)) (<= main_a_x 58)), 23496#(and (not (= main_x main_y)) (<= main_a_x 59)), 23497#(and (<= main_a_x 60) (not (= main_x main_y))), 23498#(and (not (= main_x main_y)) (<= main_a_x 61)), 23499#(and (not (= main_x main_y)) (<= main_a_x 62)), 23500#(and (<= main_a_x 63) (not (= main_x main_y))), 23501#(and (<= main_a_x 64) (not (= main_x main_y))), 23502#(and (<= main_a_x 65) (not (= main_x main_y))), 23503#(and (<= main_a_x 66) (not (= main_x main_y))), 23504#(and (<= main_a_x 67) (not (= main_x main_y))), 23505#(and (not (= main_x main_y)) (<= main_a_x 68)), 23506#(and (<= main_a_x 69) (not (= main_x main_y))), 23507#(and (<= main_a_x 70) (not (= main_x main_y))), 23508#(and (<= main_a_x 71) (not (= main_x main_y))), 23509#(and (not (= main_x main_y)) (<= main_a_x 72)), 23510#(and (not (= main_x main_y)) (<= main_a_x 73)), 23511#(and (<= main_a_x 74) (not (= main_x main_y))), 23512#(and (<= main_a_x 75) (not (= main_x main_y))), 23513#(and (not (= main_x main_y)) (<= main_a_x 76)), 23514#(and (not (= main_x main_y)) (<= main_a_x 77)), 23515#(and (<= main_a_x 78) (not (= main_x main_y))), 23516#(and (<= main_a_x 79) (not (= main_x main_y))), 23517#(and (not (= main_x main_y)) (<= main_a_x 80)), 23518#(and (not (= main_x main_y)) (<= main_a_x 81)), 23519#(and (not (= main_x main_y)) (<= main_a_x 82)), 23520#(and (not (= main_x main_y)) (<= main_a_x 83)), 23521#(and (<= main_a_x 84) (not (= main_x main_y))), 23522#(and (not (= main_x main_y)) (<= main_a_x 85)), 23523#(and (not (= main_x main_y)) (<= main_a_x 86)), 23524#(and (<= main_a_x 87) (not (= main_x main_y))), 23525#(and (not (= main_x main_y)) (<= main_a_x 88)), 23526#(and (<= main_a_x 89) (not (= main_x main_y))), 23527#(and (not (= main_x main_y)) (<= main_a_x 90)), 23528#(and (<= main_a_x 91) (not (= main_x main_y))), 23529#(<= main_a_x 92)] [2018-07-23 13:52:40,978 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 13:52:40,978 INFO L450 AbstractCegarLoop]: Interpolant automaton has 95 states [2018-07-23 13:52:40,979 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2018-07-23 13:52:40,979 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4465, Invalid=4465, Unknown=0, NotChecked=0, Total=8930 [2018-07-23 13:52:40,980 INFO L87 Difference]: Start difference. First operand 96 states and 96 transitions. Second operand 95 states. [2018-07-23 13:52:41,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:41,083 INFO L93 Difference]: Finished difference Result 99 states and 99 transitions. [2018-07-23 13:52:41,083 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2018-07-23 13:52:41,083 INFO L78 Accepts]: Start accepts. Automaton has 95 states. Word has length 95 [2018-07-23 13:52:41,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:41,084 INFO L225 Difference]: With dead ends: 99 [2018-07-23 13:52:41,084 INFO L226 Difference]: Without dead ends: 97 [2018-07-23 13:52:41,084 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=4465, Invalid=4465, Unknown=0, NotChecked=0, Total=8930 [2018-07-23 13:52:41,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2018-07-23 13:52:41,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2018-07-23 13:52:41,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2018-07-23 13:52:41,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 97 transitions. [2018-07-23 13:52:41,089 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 97 transitions. Word has length 95 [2018-07-23 13:52:41,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:41,089 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 97 transitions. [2018-07-23 13:52:41,089 INFO L472 AbstractCegarLoop]: Interpolant automaton has 95 states. [2018-07-23 13:52:41,090 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 97 transitions. [2018-07-23 13:52:41,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-07-23 13:52:41,090 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:41,090 INFO L357 BasicCegarLoop]: trace histogram [93, 1, 1, 1] [2018-07-23 13:52:41,090 INFO L414 AbstractCegarLoop]: === Iteration 94 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:41,091 INFO L82 PathProgramCache]: Analyzing trace with hash -2122043225, now seen corresponding path program 93 times [2018-07-23 13:52:41,091 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:41,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:41,905 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 13:52:41,905 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:41,905 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [95] total 95 [2018-07-23 13:52:41,906 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:41,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:41,906 INFO L185 omatonBuilderFactory]: Interpolants [23936#(and (not (= main_x main_y)) (<= main_a_x 12)), 23937#(and (<= main_a_x 13) (not (= main_x main_y))), 23938#(and (not (= main_x main_y)) (<= main_a_x 14)), 23939#(and (<= main_a_x 15) (not (= main_x main_y))), 23940#(and (not (= main_x main_y)) (<= main_a_x 16)), 23941#(and (not (= main_x main_y)) (<= main_a_x 17)), 23942#(and (<= main_a_x 18) (not (= main_x main_y))), 23943#(and (<= main_a_x 19) (not (= main_x main_y))), 23944#(and (not (= main_x main_y)) (<= main_a_x 20)), 23945#(and (not (= main_x main_y)) (<= main_a_x 21)), 23946#(and (not (= main_x main_y)) (<= main_a_x 22)), 23947#(and (<= main_a_x 23) (not (= main_x main_y))), 23948#(and (not (= main_x main_y)) (<= main_a_x 24)), 23949#(and (<= main_a_x 25) (not (= main_x main_y))), 23950#(and (not (= main_x main_y)) (<= main_a_x 26)), 23951#(and (not (= main_x main_y)) (<= main_a_x 27)), 23952#(and (not (= main_x main_y)) (<= main_a_x 28)), 23953#(and (not (= main_x main_y)) (<= main_a_x 29)), 23954#(and (<= main_a_x 30) (not (= main_x main_y))), 23955#(and (<= main_a_x 31) (not (= main_x main_y))), 23956#(and (not (= main_x main_y)) (<= main_a_x 32)), 23957#(and (not (= main_x main_y)) (<= main_a_x 33)), 23958#(and (not (= main_x main_y)) (<= main_a_x 34)), 23959#(and (<= main_a_x 35) (not (= main_x main_y))), 23960#(and (not (= main_x main_y)) (<= main_a_x 36)), 23961#(and (<= main_a_x 37) (not (= main_x main_y))), 23962#(and (not (= main_x main_y)) (<= main_a_x 38)), 23963#(and (<= main_a_x 39) (not (= main_x main_y))), 23964#(and (<= main_a_x 40) (not (= main_x main_y))), 23965#(and (not (= main_x main_y)) (<= main_a_x 41)), 23966#(and (not (= main_x main_y)) (<= main_a_x 42)), 23967#(and (<= main_a_x 43) (not (= main_x main_y))), 23968#(and (<= main_a_x 44) (not (= main_x main_y))), 23969#(and (<= main_a_x 45) (not (= main_x main_y))), 23970#(and (<= main_a_x 46) (not (= main_x main_y))), 23971#(and (<= main_a_x 47) (not (= main_x main_y))), 23972#(and (<= main_a_x 48) (not (= main_x main_y))), 23973#(and (not (= main_x main_y)) (<= main_a_x 49)), 23974#(and (not (= main_x main_y)) (<= main_a_x 50)), 23975#(and (<= main_a_x 51) (not (= main_x main_y))), 23976#(and (not (= main_x main_y)) (<= main_a_x 52)), 23977#(and (<= main_a_x 53) (not (= main_x main_y))), 23978#(and (<= main_a_x 54) (not (= main_x main_y))), 23979#(and (not (= main_x main_y)) (<= main_a_x 55)), 23980#(and (not (= main_x main_y)) (<= main_a_x 56)), 23981#(and (not (= main_x main_y)) (<= main_a_x 57)), 23982#(and (not (= main_x main_y)) (<= main_a_x 58)), 23983#(and (not (= main_x main_y)) (<= main_a_x 59)), 23984#(and (<= main_a_x 60) (not (= main_x main_y))), 23985#(and (not (= main_x main_y)) (<= main_a_x 61)), 23986#(and (not (= main_x main_y)) (<= main_a_x 62)), 23987#(and (<= main_a_x 63) (not (= main_x main_y))), 23988#(and (<= main_a_x 64) (not (= main_x main_y))), 23989#(and (<= main_a_x 65) (not (= main_x main_y))), 23990#(and (<= main_a_x 66) (not (= main_x main_y))), 23991#(and (<= main_a_x 67) (not (= main_x main_y))), 23992#(and (not (= main_x main_y)) (<= main_a_x 68)), 23993#(and (<= main_a_x 69) (not (= main_x main_y))), 23994#(and (<= main_a_x 70) (not (= main_x main_y))), 23995#(and (<= main_a_x 71) (not (= main_x main_y))), 23996#(and (not (= main_x main_y)) (<= main_a_x 72)), 23997#(and (not (= main_x main_y)) (<= main_a_x 73)), 23998#(and (<= main_a_x 74) (not (= main_x main_y))), 23999#(and (<= main_a_x 75) (not (= main_x main_y))), 24000#(and (not (= main_x main_y)) (<= main_a_x 76)), 24001#(and (not (= main_x main_y)) (<= main_a_x 77)), 24002#(and (<= main_a_x 78) (not (= main_x main_y))), 24003#(and (<= main_a_x 79) (not (= main_x main_y))), 24004#(and (not (= main_x main_y)) (<= main_a_x 80)), 24005#(and (not (= main_x main_y)) (<= main_a_x 81)), 24006#(and (not (= main_x main_y)) (<= main_a_x 82)), 24007#(and (not (= main_x main_y)) (<= main_a_x 83)), 24008#(and (<= main_a_x 84) (not (= main_x main_y))), 24009#(and (not (= main_x main_y)) (<= main_a_x 85)), 24010#(and (not (= main_x main_y)) (<= main_a_x 86)), 24011#(and (<= main_a_x 87) (not (= main_x main_y))), 24012#(and (not (= main_x main_y)) (<= main_a_x 88)), 24013#(and (<= main_a_x 89) (not (= main_x main_y))), 24014#(and (not (= main_x main_y)) (<= main_a_x 90)), 24015#(and (<= main_a_x 91) (not (= main_x main_y))), 24016#(and (not (= main_x main_y)) (<= main_a_x 92)), 24017#(<= main_a_x 93), 23922#true, 23923#false, 23924#(and (not (= main_x main_y)) (<= main_a_x 0)), 23925#(and (not (= main_x main_y)) (<= main_a_x 1)), 23926#(and (not (= main_x main_y)) (<= main_a_x 2)), 23927#(and (not (= main_x main_y)) (<= main_a_x 3)), 23928#(and (<= main_a_x 4) (not (= main_x main_y))), 23929#(and (<= main_a_x 5) (not (= main_x main_y))), 23930#(and (not (= main_x main_y)) (<= main_a_x 6)), 23931#(and (<= main_a_x 7) (not (= main_x main_y))), 23932#(and (not (= main_x main_y)) (<= main_a_x 8)), 23933#(and (not (= main_x main_y)) (<= main_a_x 9)), 23934#(and (<= main_a_x 10) (not (= main_x main_y))), 23935#(and (not (= main_x main_y)) (<= main_a_x 11))] [2018-07-23 13:52:41,906 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 13:52:41,906 INFO L450 AbstractCegarLoop]: Interpolant automaton has 96 states [2018-07-23 13:52:41,907 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2018-07-23 13:52:41,907 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2018-07-23 13:52:41,907 INFO L87 Difference]: Start difference. First operand 97 states and 97 transitions. Second operand 96 states. [2018-07-23 13:52:41,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:41,983 INFO L93 Difference]: Finished difference Result 100 states and 100 transitions. [2018-07-23 13:52:41,983 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2018-07-23 13:52:41,983 INFO L78 Accepts]: Start accepts. Automaton has 96 states. Word has length 96 [2018-07-23 13:52:41,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:41,984 INFO L225 Difference]: With dead ends: 100 [2018-07-23 13:52:41,984 INFO L226 Difference]: Without dead ends: 98 [2018-07-23 13:52:41,984 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2018-07-23 13:52:41,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2018-07-23 13:52:41,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2018-07-23 13:52:41,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2018-07-23 13:52:41,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 98 transitions. [2018-07-23 13:52:41,990 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 98 transitions. Word has length 96 [2018-07-23 13:52:41,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:41,990 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 98 transitions. [2018-07-23 13:52:41,990 INFO L472 AbstractCegarLoop]: Interpolant automaton has 96 states. [2018-07-23 13:52:41,990 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 98 transitions. [2018-07-23 13:52:41,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2018-07-23 13:52:41,991 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:41,991 INFO L357 BasicCegarLoop]: trace histogram [94, 1, 1, 1] [2018-07-23 13:52:41,991 INFO L414 AbstractCegarLoop]: === Iteration 95 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:41,991 INFO L82 PathProgramCache]: Analyzing trace with hash -1358815156, now seen corresponding path program 94 times [2018-07-23 13:52:41,991 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:42,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:42,946 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 13:52:42,946 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:42,946 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [96] total 96 [2018-07-23 13:52:42,947 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:42,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:42,947 INFO L185 omatonBuilderFactory]: Interpolants [24414#true, 24415#false, 24416#(and (not (= main_x main_y)) (<= main_a_x 0)), 24417#(and (not (= main_x main_y)) (<= main_a_x 1)), 24418#(and (not (= main_x main_y)) (<= main_a_x 2)), 24419#(and (not (= main_x main_y)) (<= main_a_x 3)), 24420#(and (<= main_a_x 4) (not (= main_x main_y))), 24421#(and (<= main_a_x 5) (not (= main_x main_y))), 24422#(and (not (= main_x main_y)) (<= main_a_x 6)), 24423#(and (<= main_a_x 7) (not (= main_x main_y))), 24424#(and (not (= main_x main_y)) (<= main_a_x 8)), 24425#(and (not (= main_x main_y)) (<= main_a_x 9)), 24426#(and (<= main_a_x 10) (not (= main_x main_y))), 24427#(and (not (= main_x main_y)) (<= main_a_x 11)), 24428#(and (not (= main_x main_y)) (<= main_a_x 12)), 24429#(and (<= main_a_x 13) (not (= main_x main_y))), 24430#(and (not (= main_x main_y)) (<= main_a_x 14)), 24431#(and (<= main_a_x 15) (not (= main_x main_y))), 24432#(and (not (= main_x main_y)) (<= main_a_x 16)), 24433#(and (not (= main_x main_y)) (<= main_a_x 17)), 24434#(and (<= main_a_x 18) (not (= main_x main_y))), 24435#(and (<= main_a_x 19) (not (= main_x main_y))), 24436#(and (not (= main_x main_y)) (<= main_a_x 20)), 24437#(and (not (= main_x main_y)) (<= main_a_x 21)), 24438#(and (not (= main_x main_y)) (<= main_a_x 22)), 24439#(and (<= main_a_x 23) (not (= main_x main_y))), 24440#(and (not (= main_x main_y)) (<= main_a_x 24)), 24441#(and (<= main_a_x 25) (not (= main_x main_y))), 24442#(and (not (= main_x main_y)) (<= main_a_x 26)), 24443#(and (not (= main_x main_y)) (<= main_a_x 27)), 24444#(and (not (= main_x main_y)) (<= main_a_x 28)), 24445#(and (not (= main_x main_y)) (<= main_a_x 29)), 24446#(and (<= main_a_x 30) (not (= main_x main_y))), 24447#(and (<= main_a_x 31) (not (= main_x main_y))), 24448#(and (not (= main_x main_y)) (<= main_a_x 32)), 24449#(and (not (= main_x main_y)) (<= main_a_x 33)), 24450#(and (not (= main_x main_y)) (<= main_a_x 34)), 24451#(and (<= main_a_x 35) (not (= main_x main_y))), 24452#(and (not (= main_x main_y)) (<= main_a_x 36)), 24453#(and (<= main_a_x 37) (not (= main_x main_y))), 24454#(and (not (= main_x main_y)) (<= main_a_x 38)), 24455#(and (<= main_a_x 39) (not (= main_x main_y))), 24456#(and (<= main_a_x 40) (not (= main_x main_y))), 24457#(and (not (= main_x main_y)) (<= main_a_x 41)), 24458#(and (not (= main_x main_y)) (<= main_a_x 42)), 24459#(and (<= main_a_x 43) (not (= main_x main_y))), 24460#(and (<= main_a_x 44) (not (= main_x main_y))), 24461#(and (<= main_a_x 45) (not (= main_x main_y))), 24462#(and (<= main_a_x 46) (not (= main_x main_y))), 24463#(and (<= main_a_x 47) (not (= main_x main_y))), 24464#(and (<= main_a_x 48) (not (= main_x main_y))), 24465#(and (not (= main_x main_y)) (<= main_a_x 49)), 24466#(and (not (= main_x main_y)) (<= main_a_x 50)), 24467#(and (<= main_a_x 51) (not (= main_x main_y))), 24468#(and (not (= main_x main_y)) (<= main_a_x 52)), 24469#(and (<= main_a_x 53) (not (= main_x main_y))), 24470#(and (<= main_a_x 54) (not (= main_x main_y))), 24471#(and (not (= main_x main_y)) (<= main_a_x 55)), 24472#(and (not (= main_x main_y)) (<= main_a_x 56)), 24473#(and (not (= main_x main_y)) (<= main_a_x 57)), 24474#(and (not (= main_x main_y)) (<= main_a_x 58)), 24475#(and (not (= main_x main_y)) (<= main_a_x 59)), 24476#(and (<= main_a_x 60) (not (= main_x main_y))), 24477#(and (not (= main_x main_y)) (<= main_a_x 61)), 24478#(and (not (= main_x main_y)) (<= main_a_x 62)), 24479#(and (<= main_a_x 63) (not (= main_x main_y))), 24480#(and (<= main_a_x 64) (not (= main_x main_y))), 24481#(and (<= main_a_x 65) (not (= main_x main_y))), 24482#(and (<= main_a_x 66) (not (= main_x main_y))), 24483#(and (<= main_a_x 67) (not (= main_x main_y))), 24484#(and (not (= main_x main_y)) (<= main_a_x 68)), 24485#(and (<= main_a_x 69) (not (= main_x main_y))), 24486#(and (<= main_a_x 70) (not (= main_x main_y))), 24487#(and (<= main_a_x 71) (not (= main_x main_y))), 24488#(and (not (= main_x main_y)) (<= main_a_x 72)), 24489#(and (not (= main_x main_y)) (<= main_a_x 73)), 24490#(and (<= main_a_x 74) (not (= main_x main_y))), 24491#(and (<= main_a_x 75) (not (= main_x main_y))), 24492#(and (not (= main_x main_y)) (<= main_a_x 76)), 24493#(and (not (= main_x main_y)) (<= main_a_x 77)), 24494#(and (<= main_a_x 78) (not (= main_x main_y))), 24495#(and (<= main_a_x 79) (not (= main_x main_y))), 24496#(and (not (= main_x main_y)) (<= main_a_x 80)), 24497#(and (not (= main_x main_y)) (<= main_a_x 81)), 24498#(and (not (= main_x main_y)) (<= main_a_x 82)), 24499#(and (not (= main_x main_y)) (<= main_a_x 83)), 24500#(and (<= main_a_x 84) (not (= main_x main_y))), 24501#(and (not (= main_x main_y)) (<= main_a_x 85)), 24502#(and (not (= main_x main_y)) (<= main_a_x 86)), 24503#(and (<= main_a_x 87) (not (= main_x main_y))), 24504#(and (not (= main_x main_y)) (<= main_a_x 88)), 24505#(and (<= main_a_x 89) (not (= main_x main_y))), 24506#(and (not (= main_x main_y)) (<= main_a_x 90)), 24507#(and (<= main_a_x 91) (not (= main_x main_y))), 24508#(and (not (= main_x main_y)) (<= main_a_x 92)), 24509#(and (not (= main_x main_y)) (<= main_a_x 93)), 24510#(<= main_a_x 94)] [2018-07-23 13:52:42,947 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 13:52:42,948 INFO L450 AbstractCegarLoop]: Interpolant automaton has 97 states [2018-07-23 13:52:42,948 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2018-07-23 13:52:42,949 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312 [2018-07-23 13:52:42,949 INFO L87 Difference]: Start difference. First operand 98 states and 98 transitions. Second operand 97 states. [2018-07-23 13:52:43,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:43,022 INFO L93 Difference]: Finished difference Result 101 states and 101 transitions. [2018-07-23 13:52:43,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2018-07-23 13:52:43,022 INFO L78 Accepts]: Start accepts. Automaton has 97 states. Word has length 97 [2018-07-23 13:52:43,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:43,023 INFO L225 Difference]: With dead ends: 101 [2018-07-23 13:52:43,023 INFO L226 Difference]: Without dead ends: 99 [2018-07-23 13:52:43,024 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312 [2018-07-23 13:52:43,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2018-07-23 13:52:43,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2018-07-23 13:52:43,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2018-07-23 13:52:43,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 99 transitions. [2018-07-23 13:52:43,030 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 99 transitions. Word has length 97 [2018-07-23 13:52:43,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:43,030 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 99 transitions. [2018-07-23 13:52:43,030 INFO L472 AbstractCegarLoop]: Interpolant automaton has 97 states. [2018-07-23 13:52:43,030 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 99 transitions. [2018-07-23 13:52:43,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2018-07-23 13:52:43,031 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:43,031 INFO L357 BasicCegarLoop]: trace histogram [95, 1, 1, 1] [2018-07-23 13:52:43,031 INFO L414 AbstractCegarLoop]: === Iteration 96 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:43,031 INFO L82 PathProgramCache]: Analyzing trace with hash 826418503, now seen corresponding path program 95 times [2018-07-23 13:52:43,032 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:43,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:44,414 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 13:52:44,415 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:44,415 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [97] total 97 [2018-07-23 13:52:44,415 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:44,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:44,415 INFO L185 omatonBuilderFactory]: Interpolants [24911#true, 24912#false, 24913#(and (not (= main_x main_y)) (<= main_a_x 0)), 24914#(and (not (= main_x main_y)) (<= main_a_x 1)), 24915#(and (not (= main_x main_y)) (<= main_a_x 2)), 24916#(and (not (= main_x main_y)) (<= main_a_x 3)), 24917#(and (<= main_a_x 4) (not (= main_x main_y))), 24918#(and (<= main_a_x 5) (not (= main_x main_y))), 24919#(and (not (= main_x main_y)) (<= main_a_x 6)), 24920#(and (<= main_a_x 7) (not (= main_x main_y))), 24921#(and (not (= main_x main_y)) (<= main_a_x 8)), 24922#(and (not (= main_x main_y)) (<= main_a_x 9)), 24923#(and (<= main_a_x 10) (not (= main_x main_y))), 24924#(and (not (= main_x main_y)) (<= main_a_x 11)), 24925#(and (not (= main_x main_y)) (<= main_a_x 12)), 24926#(and (<= main_a_x 13) (not (= main_x main_y))), 24927#(and (not (= main_x main_y)) (<= main_a_x 14)), 24928#(and (<= main_a_x 15) (not (= main_x main_y))), 24929#(and (not (= main_x main_y)) (<= main_a_x 16)), 24930#(and (not (= main_x main_y)) (<= main_a_x 17)), 24931#(and (<= main_a_x 18) (not (= main_x main_y))), 24932#(and (<= main_a_x 19) (not (= main_x main_y))), 24933#(and (not (= main_x main_y)) (<= main_a_x 20)), 24934#(and (not (= main_x main_y)) (<= main_a_x 21)), 24935#(and (not (= main_x main_y)) (<= main_a_x 22)), 24936#(and (<= main_a_x 23) (not (= main_x main_y))), 24937#(and (not (= main_x main_y)) (<= main_a_x 24)), 24938#(and (<= main_a_x 25) (not (= main_x main_y))), 24939#(and (not (= main_x main_y)) (<= main_a_x 26)), 24940#(and (not (= main_x main_y)) (<= main_a_x 27)), 24941#(and (not (= main_x main_y)) (<= main_a_x 28)), 24942#(and (not (= main_x main_y)) (<= main_a_x 29)), 24943#(and (<= main_a_x 30) (not (= main_x main_y))), 24944#(and (<= main_a_x 31) (not (= main_x main_y))), 24945#(and (not (= main_x main_y)) (<= main_a_x 32)), 24946#(and (not (= main_x main_y)) (<= main_a_x 33)), 24947#(and (not (= main_x main_y)) (<= main_a_x 34)), 24948#(and (<= main_a_x 35) (not (= main_x main_y))), 24949#(and (not (= main_x main_y)) (<= main_a_x 36)), 24950#(and (<= main_a_x 37) (not (= main_x main_y))), 24951#(and (not (= main_x main_y)) (<= main_a_x 38)), 24952#(and (<= main_a_x 39) (not (= main_x main_y))), 24953#(and (<= main_a_x 40) (not (= main_x main_y))), 24954#(and (not (= main_x main_y)) (<= main_a_x 41)), 24955#(and (not (= main_x main_y)) (<= main_a_x 42)), 24956#(and (<= main_a_x 43) (not (= main_x main_y))), 24957#(and (<= main_a_x 44) (not (= main_x main_y))), 24958#(and (<= main_a_x 45) (not (= main_x main_y))), 24959#(and (<= main_a_x 46) (not (= main_x main_y))), 24960#(and (<= main_a_x 47) (not (= main_x main_y))), 24961#(and (<= main_a_x 48) (not (= main_x main_y))), 24962#(and (not (= main_x main_y)) (<= main_a_x 49)), 24963#(and (not (= main_x main_y)) (<= main_a_x 50)), 24964#(and (<= main_a_x 51) (not (= main_x main_y))), 24965#(and (not (= main_x main_y)) (<= main_a_x 52)), 24966#(and (<= main_a_x 53) (not (= main_x main_y))), 24967#(and (<= main_a_x 54) (not (= main_x main_y))), 24968#(and (not (= main_x main_y)) (<= main_a_x 55)), 24969#(and (not (= main_x main_y)) (<= main_a_x 56)), 24970#(and (not (= main_x main_y)) (<= main_a_x 57)), 24971#(and (not (= main_x main_y)) (<= main_a_x 58)), 24972#(and (not (= main_x main_y)) (<= main_a_x 59)), 24973#(and (<= main_a_x 60) (not (= main_x main_y))), 24974#(and (not (= main_x main_y)) (<= main_a_x 61)), 24975#(and (not (= main_x main_y)) (<= main_a_x 62)), 24976#(and (<= main_a_x 63) (not (= main_x main_y))), 24977#(and (<= main_a_x 64) (not (= main_x main_y))), 24978#(and (<= main_a_x 65) (not (= main_x main_y))), 24979#(and (<= main_a_x 66) (not (= main_x main_y))), 24980#(and (<= main_a_x 67) (not (= main_x main_y))), 24981#(and (not (= main_x main_y)) (<= main_a_x 68)), 24982#(and (<= main_a_x 69) (not (= main_x main_y))), 24983#(and (<= main_a_x 70) (not (= main_x main_y))), 24984#(and (<= main_a_x 71) (not (= main_x main_y))), 24985#(and (not (= main_x main_y)) (<= main_a_x 72)), 24986#(and (not (= main_x main_y)) (<= main_a_x 73)), 24987#(and (<= main_a_x 74) (not (= main_x main_y))), 24988#(and (<= main_a_x 75) (not (= main_x main_y))), 24989#(and (not (= main_x main_y)) (<= main_a_x 76)), 24990#(and (not (= main_x main_y)) (<= main_a_x 77)), 24991#(and (<= main_a_x 78) (not (= main_x main_y))), 24992#(and (<= main_a_x 79) (not (= main_x main_y))), 24993#(and (not (= main_x main_y)) (<= main_a_x 80)), 24994#(and (not (= main_x main_y)) (<= main_a_x 81)), 24995#(and (not (= main_x main_y)) (<= main_a_x 82)), 24996#(and (not (= main_x main_y)) (<= main_a_x 83)), 24997#(and (<= main_a_x 84) (not (= main_x main_y))), 24998#(and (not (= main_x main_y)) (<= main_a_x 85)), 24999#(and (not (= main_x main_y)) (<= main_a_x 86)), 25000#(and (<= main_a_x 87) (not (= main_x main_y))), 25001#(and (not (= main_x main_y)) (<= main_a_x 88)), 25002#(and (<= main_a_x 89) (not (= main_x main_y))), 25003#(and (not (= main_x main_y)) (<= main_a_x 90)), 25004#(and (<= main_a_x 91) (not (= main_x main_y))), 25005#(and (not (= main_x main_y)) (<= main_a_x 92)), 25006#(and (not (= main_x main_y)) (<= main_a_x 93)), 25007#(and (<= main_a_x 94) (not (= main_x main_y))), 25008#(<= main_a_x 95)] [2018-07-23 13:52:44,416 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 13:52:44,416 INFO L450 AbstractCegarLoop]: Interpolant automaton has 98 states [2018-07-23 13:52:44,417 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2018-07-23 13:52:44,417 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4753, Invalid=4753, Unknown=0, NotChecked=0, Total=9506 [2018-07-23 13:52:44,417 INFO L87 Difference]: Start difference. First operand 99 states and 99 transitions. Second operand 98 states. [2018-07-23 13:52:44,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:44,469 INFO L93 Difference]: Finished difference Result 102 states and 102 transitions. [2018-07-23 13:52:44,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2018-07-23 13:52:44,470 INFO L78 Accepts]: Start accepts. Automaton has 98 states. Word has length 98 [2018-07-23 13:52:44,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:44,470 INFO L225 Difference]: With dead ends: 102 [2018-07-23 13:52:44,471 INFO L226 Difference]: Without dead ends: 100 [2018-07-23 13:52:44,471 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=4753, Invalid=4753, Unknown=0, NotChecked=0, Total=9506 [2018-07-23 13:52:44,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2018-07-23 13:52:44,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2018-07-23 13:52:44,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2018-07-23 13:52:44,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 100 transitions. [2018-07-23 13:52:44,477 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 100 transitions. Word has length 98 [2018-07-23 13:52:44,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:44,477 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 100 transitions. [2018-07-23 13:52:44,477 INFO L472 AbstractCegarLoop]: Interpolant automaton has 98 states. [2018-07-23 13:52:44,477 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 100 transitions. [2018-07-23 13:52:44,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-07-23 13:52:44,478 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:44,478 INFO L357 BasicCegarLoop]: trace histogram [96, 1, 1, 1] [2018-07-23 13:52:44,478 INFO L414 AbstractCegarLoop]: === Iteration 97 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:44,478 INFO L82 PathProgramCache]: Analyzing trace with hash -150814804, now seen corresponding path program 96 times [2018-07-23 13:52:44,479 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:44,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:45,383 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 13:52:45,383 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:45,383 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [98] total 98 [2018-07-23 13:52:45,383 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:45,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:45,384 INFO L185 omatonBuilderFactory]: Interpolants [25413#true, 25414#false, 25415#(and (not (= main_x main_y)) (<= main_a_x 0)), 25416#(and (not (= main_x main_y)) (<= main_a_x 1)), 25417#(and (not (= main_x main_y)) (<= main_a_x 2)), 25418#(and (not (= main_x main_y)) (<= main_a_x 3)), 25419#(and (<= main_a_x 4) (not (= main_x main_y))), 25420#(and (<= main_a_x 5) (not (= main_x main_y))), 25421#(and (not (= main_x main_y)) (<= main_a_x 6)), 25422#(and (<= main_a_x 7) (not (= main_x main_y))), 25423#(and (not (= main_x main_y)) (<= main_a_x 8)), 25424#(and (not (= main_x main_y)) (<= main_a_x 9)), 25425#(and (<= main_a_x 10) (not (= main_x main_y))), 25426#(and (not (= main_x main_y)) (<= main_a_x 11)), 25427#(and (not (= main_x main_y)) (<= main_a_x 12)), 25428#(and (<= main_a_x 13) (not (= main_x main_y))), 25429#(and (not (= main_x main_y)) (<= main_a_x 14)), 25430#(and (<= main_a_x 15) (not (= main_x main_y))), 25431#(and (not (= main_x main_y)) (<= main_a_x 16)), 25432#(and (not (= main_x main_y)) (<= main_a_x 17)), 25433#(and (<= main_a_x 18) (not (= main_x main_y))), 25434#(and (<= main_a_x 19) (not (= main_x main_y))), 25435#(and (not (= main_x main_y)) (<= main_a_x 20)), 25436#(and (not (= main_x main_y)) (<= main_a_x 21)), 25437#(and (not (= main_x main_y)) (<= main_a_x 22)), 25438#(and (<= main_a_x 23) (not (= main_x main_y))), 25439#(and (not (= main_x main_y)) (<= main_a_x 24)), 25440#(and (<= main_a_x 25) (not (= main_x main_y))), 25441#(and (not (= main_x main_y)) (<= main_a_x 26)), 25442#(and (not (= main_x main_y)) (<= main_a_x 27)), 25443#(and (not (= main_x main_y)) (<= main_a_x 28)), 25444#(and (not (= main_x main_y)) (<= main_a_x 29)), 25445#(and (<= main_a_x 30) (not (= main_x main_y))), 25446#(and (<= main_a_x 31) (not (= main_x main_y))), 25447#(and (not (= main_x main_y)) (<= main_a_x 32)), 25448#(and (not (= main_x main_y)) (<= main_a_x 33)), 25449#(and (not (= main_x main_y)) (<= main_a_x 34)), 25450#(and (<= main_a_x 35) (not (= main_x main_y))), 25451#(and (not (= main_x main_y)) (<= main_a_x 36)), 25452#(and (<= main_a_x 37) (not (= main_x main_y))), 25453#(and (not (= main_x main_y)) (<= main_a_x 38)), 25454#(and (<= main_a_x 39) (not (= main_x main_y))), 25455#(and (<= main_a_x 40) (not (= main_x main_y))), 25456#(and (not (= main_x main_y)) (<= main_a_x 41)), 25457#(and (not (= main_x main_y)) (<= main_a_x 42)), 25458#(and (<= main_a_x 43) (not (= main_x main_y))), 25459#(and (<= main_a_x 44) (not (= main_x main_y))), 25460#(and (<= main_a_x 45) (not (= main_x main_y))), 25461#(and (<= main_a_x 46) (not (= main_x main_y))), 25462#(and (<= main_a_x 47) (not (= main_x main_y))), 25463#(and (<= main_a_x 48) (not (= main_x main_y))), 25464#(and (not (= main_x main_y)) (<= main_a_x 49)), 25465#(and (not (= main_x main_y)) (<= main_a_x 50)), 25466#(and (<= main_a_x 51) (not (= main_x main_y))), 25467#(and (not (= main_x main_y)) (<= main_a_x 52)), 25468#(and (<= main_a_x 53) (not (= main_x main_y))), 25469#(and (<= main_a_x 54) (not (= main_x main_y))), 25470#(and (not (= main_x main_y)) (<= main_a_x 55)), 25471#(and (not (= main_x main_y)) (<= main_a_x 56)), 25472#(and (not (= main_x main_y)) (<= main_a_x 57)), 25473#(and (not (= main_x main_y)) (<= main_a_x 58)), 25474#(and (not (= main_x main_y)) (<= main_a_x 59)), 25475#(and (<= main_a_x 60) (not (= main_x main_y))), 25476#(and (not (= main_x main_y)) (<= main_a_x 61)), 25477#(and (not (= main_x main_y)) (<= main_a_x 62)), 25478#(and (<= main_a_x 63) (not (= main_x main_y))), 25479#(and (<= main_a_x 64) (not (= main_x main_y))), 25480#(and (<= main_a_x 65) (not (= main_x main_y))), 25481#(and (<= main_a_x 66) (not (= main_x main_y))), 25482#(and (<= main_a_x 67) (not (= main_x main_y))), 25483#(and (not (= main_x main_y)) (<= main_a_x 68)), 25484#(and (<= main_a_x 69) (not (= main_x main_y))), 25485#(and (<= main_a_x 70) (not (= main_x main_y))), 25486#(and (<= main_a_x 71) (not (= main_x main_y))), 25487#(and (not (= main_x main_y)) (<= main_a_x 72)), 25488#(and (not (= main_x main_y)) (<= main_a_x 73)), 25489#(and (<= main_a_x 74) (not (= main_x main_y))), 25490#(and (<= main_a_x 75) (not (= main_x main_y))), 25491#(and (not (= main_x main_y)) (<= main_a_x 76)), 25492#(and (not (= main_x main_y)) (<= main_a_x 77)), 25493#(and (<= main_a_x 78) (not (= main_x main_y))), 25494#(and (<= main_a_x 79) (not (= main_x main_y))), 25495#(and (not (= main_x main_y)) (<= main_a_x 80)), 25496#(and (not (= main_x main_y)) (<= main_a_x 81)), 25497#(and (not (= main_x main_y)) (<= main_a_x 82)), 25498#(and (not (= main_x main_y)) (<= main_a_x 83)), 25499#(and (<= main_a_x 84) (not (= main_x main_y))), 25500#(and (not (= main_x main_y)) (<= main_a_x 85)), 25501#(and (not (= main_x main_y)) (<= main_a_x 86)), 25502#(and (<= main_a_x 87) (not (= main_x main_y))), 25503#(and (not (= main_x main_y)) (<= main_a_x 88)), 25504#(and (<= main_a_x 89) (not (= main_x main_y))), 25505#(and (not (= main_x main_y)) (<= main_a_x 90)), 25506#(and (<= main_a_x 91) (not (= main_x main_y))), 25507#(and (not (= main_x main_y)) (<= main_a_x 92)), 25508#(and (not (= main_x main_y)) (<= main_a_x 93)), 25509#(and (<= main_a_x 94) (not (= main_x main_y))), 25510#(and (<= main_a_x 95) (not (= main_x main_y))), 25511#(<= main_a_x 96)] [2018-07-23 13:52:45,384 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 13:52:45,384 INFO L450 AbstractCegarLoop]: Interpolant automaton has 99 states [2018-07-23 13:52:45,385 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2018-07-23 13:52:45,385 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4851, Invalid=4851, Unknown=0, NotChecked=0, Total=9702 [2018-07-23 13:52:45,386 INFO L87 Difference]: Start difference. First operand 100 states and 100 transitions. Second operand 99 states. [2018-07-23 13:52:45,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:45,465 INFO L93 Difference]: Finished difference Result 103 states and 103 transitions. [2018-07-23 13:52:45,465 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2018-07-23 13:52:45,465 INFO L78 Accepts]: Start accepts. Automaton has 99 states. Word has length 99 [2018-07-23 13:52:45,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:45,466 INFO L225 Difference]: With dead ends: 103 [2018-07-23 13:52:45,466 INFO L226 Difference]: Without dead ends: 101 [2018-07-23 13:52:45,467 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=4851, Invalid=4851, Unknown=0, NotChecked=0, Total=9702 [2018-07-23 13:52:45,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2018-07-23 13:52:45,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2018-07-23 13:52:45,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2018-07-23 13:52:45,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 101 transitions. [2018-07-23 13:52:45,473 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 101 transitions. Word has length 99 [2018-07-23 13:52:45,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:45,473 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 101 transitions. [2018-07-23 13:52:45,473 INFO L472 AbstractCegarLoop]: Interpolant automaton has 99 states. [2018-07-23 13:52:45,473 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 101 transitions. [2018-07-23 13:52:45,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2018-07-23 13:52:45,474 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:45,474 INFO L357 BasicCegarLoop]: trace histogram [97, 1, 1, 1] [2018-07-23 13:52:45,474 INFO L414 AbstractCegarLoop]: === Iteration 98 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:45,474 INFO L82 PathProgramCache]: Analyzing trace with hash -380276249, now seen corresponding path program 97 times [2018-07-23 13:52:45,474 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:45,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:46,566 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 13:52:46,566 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:46,566 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [99] total 99 [2018-07-23 13:52:46,567 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:46,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:46,567 INFO L185 omatonBuilderFactory]: Interpolants [25920#true, 25921#false, 25922#(and (not (= main_x main_y)) (<= main_a_x 0)), 25923#(and (not (= main_x main_y)) (<= main_a_x 1)), 25924#(and (not (= main_x main_y)) (<= main_a_x 2)), 25925#(and (not (= main_x main_y)) (<= main_a_x 3)), 25926#(and (<= main_a_x 4) (not (= main_x main_y))), 25927#(and (<= main_a_x 5) (not (= main_x main_y))), 25928#(and (not (= main_x main_y)) (<= main_a_x 6)), 25929#(and (<= main_a_x 7) (not (= main_x main_y))), 25930#(and (not (= main_x main_y)) (<= main_a_x 8)), 25931#(and (not (= main_x main_y)) (<= main_a_x 9)), 25932#(and (<= main_a_x 10) (not (= main_x main_y))), 25933#(and (not (= main_x main_y)) (<= main_a_x 11)), 25934#(and (not (= main_x main_y)) (<= main_a_x 12)), 25935#(and (<= main_a_x 13) (not (= main_x main_y))), 25936#(and (not (= main_x main_y)) (<= main_a_x 14)), 25937#(and (<= main_a_x 15) (not (= main_x main_y))), 25938#(and (not (= main_x main_y)) (<= main_a_x 16)), 25939#(and (not (= main_x main_y)) (<= main_a_x 17)), 25940#(and (<= main_a_x 18) (not (= main_x main_y))), 25941#(and (<= main_a_x 19) (not (= main_x main_y))), 25942#(and (not (= main_x main_y)) (<= main_a_x 20)), 25943#(and (not (= main_x main_y)) (<= main_a_x 21)), 25944#(and (not (= main_x main_y)) (<= main_a_x 22)), 25945#(and (<= main_a_x 23) (not (= main_x main_y))), 25946#(and (not (= main_x main_y)) (<= main_a_x 24)), 25947#(and (<= main_a_x 25) (not (= main_x main_y))), 25948#(and (not (= main_x main_y)) (<= main_a_x 26)), 25949#(and (not (= main_x main_y)) (<= main_a_x 27)), 25950#(and (not (= main_x main_y)) (<= main_a_x 28)), 25951#(and (not (= main_x main_y)) (<= main_a_x 29)), 25952#(and (<= main_a_x 30) (not (= main_x main_y))), 25953#(and (<= main_a_x 31) (not (= main_x main_y))), 25954#(and (not (= main_x main_y)) (<= main_a_x 32)), 25955#(and (not (= main_x main_y)) (<= main_a_x 33)), 25956#(and (not (= main_x main_y)) (<= main_a_x 34)), 25957#(and (<= main_a_x 35) (not (= main_x main_y))), 25958#(and (not (= main_x main_y)) (<= main_a_x 36)), 25959#(and (<= main_a_x 37) (not (= main_x main_y))), 25960#(and (not (= main_x main_y)) (<= main_a_x 38)), 25961#(and (<= main_a_x 39) (not (= main_x main_y))), 25962#(and (<= main_a_x 40) (not (= main_x main_y))), 25963#(and (not (= main_x main_y)) (<= main_a_x 41)), 25964#(and (not (= main_x main_y)) (<= main_a_x 42)), 25965#(and (<= main_a_x 43) (not (= main_x main_y))), 25966#(and (<= main_a_x 44) (not (= main_x main_y))), 25967#(and (<= main_a_x 45) (not (= main_x main_y))), 25968#(and (<= main_a_x 46) (not (= main_x main_y))), 25969#(and (<= main_a_x 47) (not (= main_x main_y))), 25970#(and (<= main_a_x 48) (not (= main_x main_y))), 25971#(and (not (= main_x main_y)) (<= main_a_x 49)), 25972#(and (not (= main_x main_y)) (<= main_a_x 50)), 25973#(and (<= main_a_x 51) (not (= main_x main_y))), 25974#(and (not (= main_x main_y)) (<= main_a_x 52)), 25975#(and (<= main_a_x 53) (not (= main_x main_y))), 25976#(and (<= main_a_x 54) (not (= main_x main_y))), 25977#(and (not (= main_x main_y)) (<= main_a_x 55)), 25978#(and (not (= main_x main_y)) (<= main_a_x 56)), 25979#(and (not (= main_x main_y)) (<= main_a_x 57)), 25980#(and (not (= main_x main_y)) (<= main_a_x 58)), 25981#(and (not (= main_x main_y)) (<= main_a_x 59)), 25982#(and (<= main_a_x 60) (not (= main_x main_y))), 25983#(and (not (= main_x main_y)) (<= main_a_x 61)), 25984#(and (not (= main_x main_y)) (<= main_a_x 62)), 25985#(and (<= main_a_x 63) (not (= main_x main_y))), 25986#(and (<= main_a_x 64) (not (= main_x main_y))), 25987#(and (<= main_a_x 65) (not (= main_x main_y))), 25988#(and (<= main_a_x 66) (not (= main_x main_y))), 25989#(and (<= main_a_x 67) (not (= main_x main_y))), 25990#(and (not (= main_x main_y)) (<= main_a_x 68)), 25991#(and (<= main_a_x 69) (not (= main_x main_y))), 25992#(and (<= main_a_x 70) (not (= main_x main_y))), 25993#(and (<= main_a_x 71) (not (= main_x main_y))), 25994#(and (not (= main_x main_y)) (<= main_a_x 72)), 25995#(and (not (= main_x main_y)) (<= main_a_x 73)), 25996#(and (<= main_a_x 74) (not (= main_x main_y))), 25997#(and (<= main_a_x 75) (not (= main_x main_y))), 25998#(and (not (= main_x main_y)) (<= main_a_x 76)), 25999#(and (not (= main_x main_y)) (<= main_a_x 77)), 26000#(and (<= main_a_x 78) (not (= main_x main_y))), 26001#(and (<= main_a_x 79) (not (= main_x main_y))), 26002#(and (not (= main_x main_y)) (<= main_a_x 80)), 26003#(and (not (= main_x main_y)) (<= main_a_x 81)), 26004#(and (not (= main_x main_y)) (<= main_a_x 82)), 26005#(and (not (= main_x main_y)) (<= main_a_x 83)), 26006#(and (<= main_a_x 84) (not (= main_x main_y))), 26007#(and (not (= main_x main_y)) (<= main_a_x 85)), 26008#(and (not (= main_x main_y)) (<= main_a_x 86)), 26009#(and (<= main_a_x 87) (not (= main_x main_y))), 26010#(and (not (= main_x main_y)) (<= main_a_x 88)), 26011#(and (<= main_a_x 89) (not (= main_x main_y))), 26012#(and (not (= main_x main_y)) (<= main_a_x 90)), 26013#(and (<= main_a_x 91) (not (= main_x main_y))), 26014#(and (not (= main_x main_y)) (<= main_a_x 92)), 26015#(and (not (= main_x main_y)) (<= main_a_x 93)), 26016#(and (<= main_a_x 94) (not (= main_x main_y))), 26017#(and (<= main_a_x 95) (not (= main_x main_y))), 26018#(and (not (= main_x main_y)) (<= main_a_x 96)), 26019#(<= main_a_x 97)] [2018-07-23 13:52:46,567 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 13:52:46,568 INFO L450 AbstractCegarLoop]: Interpolant automaton has 100 states [2018-07-23 13:52:46,568 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2018-07-23 13:52:46,569 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4950, Invalid=4950, Unknown=0, NotChecked=0, Total=9900 [2018-07-23 13:52:46,569 INFO L87 Difference]: Start difference. First operand 101 states and 101 transitions. Second operand 100 states. [2018-07-23 13:52:46,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:46,621 INFO L93 Difference]: Finished difference Result 104 states and 104 transitions. [2018-07-23 13:52:46,622 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2018-07-23 13:52:46,622 INFO L78 Accepts]: Start accepts. Automaton has 100 states. Word has length 100 [2018-07-23 13:52:46,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:46,622 INFO L225 Difference]: With dead ends: 104 [2018-07-23 13:52:46,622 INFO L226 Difference]: Without dead ends: 102 [2018-07-23 13:52:46,623 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=4950, Invalid=4950, Unknown=0, NotChecked=0, Total=9900 [2018-07-23 13:52:46,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2018-07-23 13:52:46,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2018-07-23 13:52:46,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2018-07-23 13:52:46,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 102 transitions. [2018-07-23 13:52:46,629 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 102 transitions. Word has length 100 [2018-07-23 13:52:46,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:46,629 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 102 transitions. [2018-07-23 13:52:46,629 INFO L472 AbstractCegarLoop]: Interpolant automaton has 100 states. [2018-07-23 13:52:46,630 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 102 transitions. [2018-07-23 13:52:46,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-07-23 13:52:46,630 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:46,630 INFO L357 BasicCegarLoop]: trace histogram [98, 1, 1, 1] [2018-07-23 13:52:46,630 INFO L414 AbstractCegarLoop]: === Iteration 99 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:46,631 INFO L82 PathProgramCache]: Analyzing trace with hash 1096353548, now seen corresponding path program 98 times [2018-07-23 13:52:46,631 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:46,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:48,076 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 13:52:48,076 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:48,076 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [100] total 100 [2018-07-23 13:52:48,076 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:48,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:48,077 INFO L185 omatonBuilderFactory]: Interpolants [26432#true, 26433#false, 26434#(and (not (= main_x main_y)) (<= main_a_x 0)), 26435#(and (not (= main_x main_y)) (<= main_a_x 1)), 26436#(and (not (= main_x main_y)) (<= main_a_x 2)), 26437#(and (not (= main_x main_y)) (<= main_a_x 3)), 26438#(and (<= main_a_x 4) (not (= main_x main_y))), 26439#(and (<= main_a_x 5) (not (= main_x main_y))), 26440#(and (not (= main_x main_y)) (<= main_a_x 6)), 26441#(and (<= main_a_x 7) (not (= main_x main_y))), 26442#(and (not (= main_x main_y)) (<= main_a_x 8)), 26443#(and (not (= main_x main_y)) (<= main_a_x 9)), 26444#(and (<= main_a_x 10) (not (= main_x main_y))), 26445#(and (not (= main_x main_y)) (<= main_a_x 11)), 26446#(and (not (= main_x main_y)) (<= main_a_x 12)), 26447#(and (<= main_a_x 13) (not (= main_x main_y))), 26448#(and (not (= main_x main_y)) (<= main_a_x 14)), 26449#(and (<= main_a_x 15) (not (= main_x main_y))), 26450#(and (not (= main_x main_y)) (<= main_a_x 16)), 26451#(and (not (= main_x main_y)) (<= main_a_x 17)), 26452#(and (<= main_a_x 18) (not (= main_x main_y))), 26453#(and (<= main_a_x 19) (not (= main_x main_y))), 26454#(and (not (= main_x main_y)) (<= main_a_x 20)), 26455#(and (not (= main_x main_y)) (<= main_a_x 21)), 26456#(and (not (= main_x main_y)) (<= main_a_x 22)), 26457#(and (<= main_a_x 23) (not (= main_x main_y))), 26458#(and (not (= main_x main_y)) (<= main_a_x 24)), 26459#(and (<= main_a_x 25) (not (= main_x main_y))), 26460#(and (not (= main_x main_y)) (<= main_a_x 26)), 26461#(and (not (= main_x main_y)) (<= main_a_x 27)), 26462#(and (not (= main_x main_y)) (<= main_a_x 28)), 26463#(and (not (= main_x main_y)) (<= main_a_x 29)), 26464#(and (<= main_a_x 30) (not (= main_x main_y))), 26465#(and (<= main_a_x 31) (not (= main_x main_y))), 26466#(and (not (= main_x main_y)) (<= main_a_x 32)), 26467#(and (not (= main_x main_y)) (<= main_a_x 33)), 26468#(and (not (= main_x main_y)) (<= main_a_x 34)), 26469#(and (<= main_a_x 35) (not (= main_x main_y))), 26470#(and (not (= main_x main_y)) (<= main_a_x 36)), 26471#(and (<= main_a_x 37) (not (= main_x main_y))), 26472#(and (not (= main_x main_y)) (<= main_a_x 38)), 26473#(and (<= main_a_x 39) (not (= main_x main_y))), 26474#(and (<= main_a_x 40) (not (= main_x main_y))), 26475#(and (not (= main_x main_y)) (<= main_a_x 41)), 26476#(and (not (= main_x main_y)) (<= main_a_x 42)), 26477#(and (<= main_a_x 43) (not (= main_x main_y))), 26478#(and (<= main_a_x 44) (not (= main_x main_y))), 26479#(and (<= main_a_x 45) (not (= main_x main_y))), 26480#(and (<= main_a_x 46) (not (= main_x main_y))), 26481#(and (<= main_a_x 47) (not (= main_x main_y))), 26482#(and (<= main_a_x 48) (not (= main_x main_y))), 26483#(and (not (= main_x main_y)) (<= main_a_x 49)), 26484#(and (not (= main_x main_y)) (<= main_a_x 50)), 26485#(and (<= main_a_x 51) (not (= main_x main_y))), 26486#(and (not (= main_x main_y)) (<= main_a_x 52)), 26487#(and (<= main_a_x 53) (not (= main_x main_y))), 26488#(and (<= main_a_x 54) (not (= main_x main_y))), 26489#(and (not (= main_x main_y)) (<= main_a_x 55)), 26490#(and (not (= main_x main_y)) (<= main_a_x 56)), 26491#(and (not (= main_x main_y)) (<= main_a_x 57)), 26492#(and (not (= main_x main_y)) (<= main_a_x 58)), 26493#(and (not (= main_x main_y)) (<= main_a_x 59)), 26494#(and (<= main_a_x 60) (not (= main_x main_y))), 26495#(and (not (= main_x main_y)) (<= main_a_x 61)), 26496#(and (not (= main_x main_y)) (<= main_a_x 62)), 26497#(and (<= main_a_x 63) (not (= main_x main_y))), 26498#(and (<= main_a_x 64) (not (= main_x main_y))), 26499#(and (<= main_a_x 65) (not (= main_x main_y))), 26500#(and (<= main_a_x 66) (not (= main_x main_y))), 26501#(and (<= main_a_x 67) (not (= main_x main_y))), 26502#(and (not (= main_x main_y)) (<= main_a_x 68)), 26503#(and (<= main_a_x 69) (not (= main_x main_y))), 26504#(and (<= main_a_x 70) (not (= main_x main_y))), 26505#(and (<= main_a_x 71) (not (= main_x main_y))), 26506#(and (not (= main_x main_y)) (<= main_a_x 72)), 26507#(and (not (= main_x main_y)) (<= main_a_x 73)), 26508#(and (<= main_a_x 74) (not (= main_x main_y))), 26509#(and (<= main_a_x 75) (not (= main_x main_y))), 26510#(and (not (= main_x main_y)) (<= main_a_x 76)), 26511#(and (not (= main_x main_y)) (<= main_a_x 77)), 26512#(and (<= main_a_x 78) (not (= main_x main_y))), 26513#(and (<= main_a_x 79) (not (= main_x main_y))), 26514#(and (not (= main_x main_y)) (<= main_a_x 80)), 26515#(and (not (= main_x main_y)) (<= main_a_x 81)), 26516#(and (not (= main_x main_y)) (<= main_a_x 82)), 26517#(and (not (= main_x main_y)) (<= main_a_x 83)), 26518#(and (<= main_a_x 84) (not (= main_x main_y))), 26519#(and (not (= main_x main_y)) (<= main_a_x 85)), 26520#(and (not (= main_x main_y)) (<= main_a_x 86)), 26521#(and (<= main_a_x 87) (not (= main_x main_y))), 26522#(and (not (= main_x main_y)) (<= main_a_x 88)), 26523#(and (<= main_a_x 89) (not (= main_x main_y))), 26524#(and (not (= main_x main_y)) (<= main_a_x 90)), 26525#(and (<= main_a_x 91) (not (= main_x main_y))), 26526#(and (not (= main_x main_y)) (<= main_a_x 92)), 26527#(and (not (= main_x main_y)) (<= main_a_x 93)), 26528#(and (<= main_a_x 94) (not (= main_x main_y))), 26529#(and (<= main_a_x 95) (not (= main_x main_y))), 26530#(and (not (= main_x main_y)) (<= main_a_x 96)), 26531#(and (<= main_a_x 97) (not (= main_x main_y))), 26532#(<= main_a_x 98)] [2018-07-23 13:52:48,077 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 13:52:48,077 INFO L450 AbstractCegarLoop]: Interpolant automaton has 101 states [2018-07-23 13:52:48,078 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2018-07-23 13:52:48,078 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5050, Invalid=5050, Unknown=0, NotChecked=0, Total=10100 [2018-07-23 13:52:48,078 INFO L87 Difference]: Start difference. First operand 102 states and 102 transitions. Second operand 101 states. [2018-07-23 13:52:48,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:48,139 INFO L93 Difference]: Finished difference Result 105 states and 105 transitions. [2018-07-23 13:52:48,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2018-07-23 13:52:48,139 INFO L78 Accepts]: Start accepts. Automaton has 101 states. Word has length 101 [2018-07-23 13:52:48,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:48,139 INFO L225 Difference]: With dead ends: 105 [2018-07-23 13:52:48,139 INFO L226 Difference]: Without dead ends: 103 [2018-07-23 13:52:48,140 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=5050, Invalid=5050, Unknown=0, NotChecked=0, Total=10100 [2018-07-23 13:52:48,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2018-07-23 13:52:48,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2018-07-23 13:52:48,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2018-07-23 13:52:48,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 103 transitions. [2018-07-23 13:52:48,146 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 103 transitions. Word has length 101 [2018-07-23 13:52:48,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:48,146 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 103 transitions. [2018-07-23 13:52:48,146 INFO L472 AbstractCegarLoop]: Interpolant automaton has 101 states. [2018-07-23 13:52:48,146 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 103 transitions. [2018-07-23 13:52:48,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-07-23 13:52:48,147 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:48,147 INFO L357 BasicCegarLoop]: trace histogram [99, 1, 1, 1] [2018-07-23 13:52:48,147 INFO L414 AbstractCegarLoop]: === Iteration 100 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:48,148 INFO L82 PathProgramCache]: Analyzing trace with hash -372763001, now seen corresponding path program 99 times [2018-07-23 13:52:48,148 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:48,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:49,198 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 13:52:49,198 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:49,198 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [101] total 101 [2018-07-23 13:52:49,198 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:49,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:49,199 INFO L185 omatonBuilderFactory]: Interpolants [26949#true, 26950#false, 26951#(and (not (= main_x main_y)) (<= main_a_x 0)), 26952#(and (not (= main_x main_y)) (<= main_a_x 1)), 26953#(and (not (= main_x main_y)) (<= main_a_x 2)), 26954#(and (not (= main_x main_y)) (<= main_a_x 3)), 26955#(and (<= main_a_x 4) (not (= main_x main_y))), 26956#(and (<= main_a_x 5) (not (= main_x main_y))), 26957#(and (not (= main_x main_y)) (<= main_a_x 6)), 26958#(and (<= main_a_x 7) (not (= main_x main_y))), 26959#(and (not (= main_x main_y)) (<= main_a_x 8)), 26960#(and (not (= main_x main_y)) (<= main_a_x 9)), 26961#(and (<= main_a_x 10) (not (= main_x main_y))), 26962#(and (not (= main_x main_y)) (<= main_a_x 11)), 26963#(and (not (= main_x main_y)) (<= main_a_x 12)), 26964#(and (<= main_a_x 13) (not (= main_x main_y))), 26965#(and (not (= main_x main_y)) (<= main_a_x 14)), 26966#(and (<= main_a_x 15) (not (= main_x main_y))), 26967#(and (not (= main_x main_y)) (<= main_a_x 16)), 26968#(and (not (= main_x main_y)) (<= main_a_x 17)), 26969#(and (<= main_a_x 18) (not (= main_x main_y))), 26970#(and (<= main_a_x 19) (not (= main_x main_y))), 26971#(and (not (= main_x main_y)) (<= main_a_x 20)), 26972#(and (not (= main_x main_y)) (<= main_a_x 21)), 26973#(and (not (= main_x main_y)) (<= main_a_x 22)), 26974#(and (<= main_a_x 23) (not (= main_x main_y))), 26975#(and (not (= main_x main_y)) (<= main_a_x 24)), 26976#(and (<= main_a_x 25) (not (= main_x main_y))), 26977#(and (not (= main_x main_y)) (<= main_a_x 26)), 26978#(and (not (= main_x main_y)) (<= main_a_x 27)), 26979#(and (not (= main_x main_y)) (<= main_a_x 28)), 26980#(and (not (= main_x main_y)) (<= main_a_x 29)), 26981#(and (<= main_a_x 30) (not (= main_x main_y))), 26982#(and (<= main_a_x 31) (not (= main_x main_y))), 26983#(and (not (= main_x main_y)) (<= main_a_x 32)), 26984#(and (not (= main_x main_y)) (<= main_a_x 33)), 26985#(and (not (= main_x main_y)) (<= main_a_x 34)), 26986#(and (<= main_a_x 35) (not (= main_x main_y))), 26987#(and (not (= main_x main_y)) (<= main_a_x 36)), 26988#(and (<= main_a_x 37) (not (= main_x main_y))), 26989#(and (not (= main_x main_y)) (<= main_a_x 38)), 26990#(and (<= main_a_x 39) (not (= main_x main_y))), 26991#(and (<= main_a_x 40) (not (= main_x main_y))), 26992#(and (not (= main_x main_y)) (<= main_a_x 41)), 26993#(and (not (= main_x main_y)) (<= main_a_x 42)), 26994#(and (<= main_a_x 43) (not (= main_x main_y))), 26995#(and (<= main_a_x 44) (not (= main_x main_y))), 26996#(and (<= main_a_x 45) (not (= main_x main_y))), 26997#(and (<= main_a_x 46) (not (= main_x main_y))), 26998#(and (<= main_a_x 47) (not (= main_x main_y))), 26999#(and (<= main_a_x 48) (not (= main_x main_y))), 27000#(and (not (= main_x main_y)) (<= main_a_x 49)), 27001#(and (not (= main_x main_y)) (<= main_a_x 50)), 27002#(and (<= main_a_x 51) (not (= main_x main_y))), 27003#(and (not (= main_x main_y)) (<= main_a_x 52)), 27004#(and (<= main_a_x 53) (not (= main_x main_y))), 27005#(and (<= main_a_x 54) (not (= main_x main_y))), 27006#(and (not (= main_x main_y)) (<= main_a_x 55)), 27007#(and (not (= main_x main_y)) (<= main_a_x 56)), 27008#(and (not (= main_x main_y)) (<= main_a_x 57)), 27009#(and (not (= main_x main_y)) (<= main_a_x 58)), 27010#(and (not (= main_x main_y)) (<= main_a_x 59)), 27011#(and (<= main_a_x 60) (not (= main_x main_y))), 27012#(and (not (= main_x main_y)) (<= main_a_x 61)), 27013#(and (not (= main_x main_y)) (<= main_a_x 62)), 27014#(and (<= main_a_x 63) (not (= main_x main_y))), 27015#(and (<= main_a_x 64) (not (= main_x main_y))), 27016#(and (<= main_a_x 65) (not (= main_x main_y))), 27017#(and (<= main_a_x 66) (not (= main_x main_y))), 27018#(and (<= main_a_x 67) (not (= main_x main_y))), 27019#(and (not (= main_x main_y)) (<= main_a_x 68)), 27020#(and (<= main_a_x 69) (not (= main_x main_y))), 27021#(and (<= main_a_x 70) (not (= main_x main_y))), 27022#(and (<= main_a_x 71) (not (= main_x main_y))), 27023#(and (not (= main_x main_y)) (<= main_a_x 72)), 27024#(and (not (= main_x main_y)) (<= main_a_x 73)), 27025#(and (<= main_a_x 74) (not (= main_x main_y))), 27026#(and (<= main_a_x 75) (not (= main_x main_y))), 27027#(and (not (= main_x main_y)) (<= main_a_x 76)), 27028#(and (not (= main_x main_y)) (<= main_a_x 77)), 27029#(and (<= main_a_x 78) (not (= main_x main_y))), 27030#(and (<= main_a_x 79) (not (= main_x main_y))), 27031#(and (not (= main_x main_y)) (<= main_a_x 80)), 27032#(and (not (= main_x main_y)) (<= main_a_x 81)), 27033#(and (not (= main_x main_y)) (<= main_a_x 82)), 27034#(and (not (= main_x main_y)) (<= main_a_x 83)), 27035#(and (<= main_a_x 84) (not (= main_x main_y))), 27036#(and (not (= main_x main_y)) (<= main_a_x 85)), 27037#(and (not (= main_x main_y)) (<= main_a_x 86)), 27038#(and (<= main_a_x 87) (not (= main_x main_y))), 27039#(and (not (= main_x main_y)) (<= main_a_x 88)), 27040#(and (<= main_a_x 89) (not (= main_x main_y))), 27041#(and (not (= main_x main_y)) (<= main_a_x 90)), 27042#(and (<= main_a_x 91) (not (= main_x main_y))), 27043#(and (not (= main_x main_y)) (<= main_a_x 92)), 27044#(and (not (= main_x main_y)) (<= main_a_x 93)), 27045#(and (<= main_a_x 94) (not (= main_x main_y))), 27046#(and (<= main_a_x 95) (not (= main_x main_y))), 27047#(and (not (= main_x main_y)) (<= main_a_x 96)), 27048#(and (<= main_a_x 97) (not (= main_x main_y))), 27049#(and (not (= main_x main_y)) (<= main_a_x 98)), 27050#(<= main_a_x 99)] [2018-07-23 13:52:49,199 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 13:52:49,199 INFO L450 AbstractCegarLoop]: Interpolant automaton has 102 states [2018-07-23 13:52:49,200 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2018-07-23 13:52:49,201 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5151, Invalid=5151, Unknown=0, NotChecked=0, Total=10302 [2018-07-23 13:52:49,201 INFO L87 Difference]: Start difference. First operand 103 states and 103 transitions. Second operand 102 states. [2018-07-23 13:52:49,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:49,256 INFO L93 Difference]: Finished difference Result 106 states and 106 transitions. [2018-07-23 13:52:49,257 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2018-07-23 13:52:49,257 INFO L78 Accepts]: Start accepts. Automaton has 102 states. Word has length 102 [2018-07-23 13:52:49,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:49,257 INFO L225 Difference]: With dead ends: 106 [2018-07-23 13:52:49,257 INFO L226 Difference]: Without dead ends: 104 [2018-07-23 13:52:49,258 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=5151, Invalid=5151, Unknown=0, NotChecked=0, Total=10302 [2018-07-23 13:52:49,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2018-07-23 13:52:49,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2018-07-23 13:52:49,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2018-07-23 13:52:49,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 104 transitions. [2018-07-23 13:52:49,264 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 104 transitions. Word has length 102 [2018-07-23 13:52:49,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:49,264 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 104 transitions. [2018-07-23 13:52:49,265 INFO L472 AbstractCegarLoop]: Interpolant automaton has 102 states. [2018-07-23 13:52:49,265 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 104 transitions. [2018-07-23 13:52:49,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2018-07-23 13:52:49,265 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:49,265 INFO L357 BasicCegarLoop]: trace histogram [100, 1, 1, 1] [2018-07-23 13:52:49,266 INFO L414 AbstractCegarLoop]: === Iteration 101 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:49,266 INFO L82 PathProgramCache]: Analyzing trace with hash 1329264236, now seen corresponding path program 100 times [2018-07-23 13:52:49,266 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:49,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:50,244 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 13:52:50,244 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:50,245 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [102] total 102 [2018-07-23 13:52:50,245 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:50,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:50,245 INFO L185 omatonBuilderFactory]: Interpolants [27471#true, 27472#false, 27473#(and (not (= main_x main_y)) (<= main_a_x 0)), 27474#(and (not (= main_x main_y)) (<= main_a_x 1)), 27475#(and (not (= main_x main_y)) (<= main_a_x 2)), 27476#(and (not (= main_x main_y)) (<= main_a_x 3)), 27477#(and (<= main_a_x 4) (not (= main_x main_y))), 27478#(and (<= main_a_x 5) (not (= main_x main_y))), 27479#(and (not (= main_x main_y)) (<= main_a_x 6)), 27480#(and (<= main_a_x 7) (not (= main_x main_y))), 27481#(and (not (= main_x main_y)) (<= main_a_x 8)), 27482#(and (not (= main_x main_y)) (<= main_a_x 9)), 27483#(and (<= main_a_x 10) (not (= main_x main_y))), 27484#(and (not (= main_x main_y)) (<= main_a_x 11)), 27485#(and (not (= main_x main_y)) (<= main_a_x 12)), 27486#(and (<= main_a_x 13) (not (= main_x main_y))), 27487#(and (not (= main_x main_y)) (<= main_a_x 14)), 27488#(and (<= main_a_x 15) (not (= main_x main_y))), 27489#(and (not (= main_x main_y)) (<= main_a_x 16)), 27490#(and (not (= main_x main_y)) (<= main_a_x 17)), 27491#(and (<= main_a_x 18) (not (= main_x main_y))), 27492#(and (<= main_a_x 19) (not (= main_x main_y))), 27493#(and (not (= main_x main_y)) (<= main_a_x 20)), 27494#(and (not (= main_x main_y)) (<= main_a_x 21)), 27495#(and (not (= main_x main_y)) (<= main_a_x 22)), 27496#(and (<= main_a_x 23) (not (= main_x main_y))), 27497#(and (not (= main_x main_y)) (<= main_a_x 24)), 27498#(and (<= main_a_x 25) (not (= main_x main_y))), 27499#(and (not (= main_x main_y)) (<= main_a_x 26)), 27500#(and (not (= main_x main_y)) (<= main_a_x 27)), 27501#(and (not (= main_x main_y)) (<= main_a_x 28)), 27502#(and (not (= main_x main_y)) (<= main_a_x 29)), 27503#(and (<= main_a_x 30) (not (= main_x main_y))), 27504#(and (<= main_a_x 31) (not (= main_x main_y))), 27505#(and (not (= main_x main_y)) (<= main_a_x 32)), 27506#(and (not (= main_x main_y)) (<= main_a_x 33)), 27507#(and (not (= main_x main_y)) (<= main_a_x 34)), 27508#(and (<= main_a_x 35) (not (= main_x main_y))), 27509#(and (not (= main_x main_y)) (<= main_a_x 36)), 27510#(and (<= main_a_x 37) (not (= main_x main_y))), 27511#(and (not (= main_x main_y)) (<= main_a_x 38)), 27512#(and (<= main_a_x 39) (not (= main_x main_y))), 27513#(and (<= main_a_x 40) (not (= main_x main_y))), 27514#(and (not (= main_x main_y)) (<= main_a_x 41)), 27515#(and (not (= main_x main_y)) (<= main_a_x 42)), 27516#(and (<= main_a_x 43) (not (= main_x main_y))), 27517#(and (<= main_a_x 44) (not (= main_x main_y))), 27518#(and (<= main_a_x 45) (not (= main_x main_y))), 27519#(and (<= main_a_x 46) (not (= main_x main_y))), 27520#(and (<= main_a_x 47) (not (= main_x main_y))), 27521#(and (<= main_a_x 48) (not (= main_x main_y))), 27522#(and (not (= main_x main_y)) (<= main_a_x 49)), 27523#(and (not (= main_x main_y)) (<= main_a_x 50)), 27524#(and (<= main_a_x 51) (not (= main_x main_y))), 27525#(and (not (= main_x main_y)) (<= main_a_x 52)), 27526#(and (<= main_a_x 53) (not (= main_x main_y))), 27527#(and (<= main_a_x 54) (not (= main_x main_y))), 27528#(and (not (= main_x main_y)) (<= main_a_x 55)), 27529#(and (not (= main_x main_y)) (<= main_a_x 56)), 27530#(and (not (= main_x main_y)) (<= main_a_x 57)), 27531#(and (not (= main_x main_y)) (<= main_a_x 58)), 27532#(and (not (= main_x main_y)) (<= main_a_x 59)), 27533#(and (<= main_a_x 60) (not (= main_x main_y))), 27534#(and (not (= main_x main_y)) (<= main_a_x 61)), 27535#(and (not (= main_x main_y)) (<= main_a_x 62)), 27536#(and (<= main_a_x 63) (not (= main_x main_y))), 27537#(and (<= main_a_x 64) (not (= main_x main_y))), 27538#(and (<= main_a_x 65) (not (= main_x main_y))), 27539#(and (<= main_a_x 66) (not (= main_x main_y))), 27540#(and (<= main_a_x 67) (not (= main_x main_y))), 27541#(and (not (= main_x main_y)) (<= main_a_x 68)), 27542#(and (<= main_a_x 69) (not (= main_x main_y))), 27543#(and (<= main_a_x 70) (not (= main_x main_y))), 27544#(and (<= main_a_x 71) (not (= main_x main_y))), 27545#(and (not (= main_x main_y)) (<= main_a_x 72)), 27546#(and (not (= main_x main_y)) (<= main_a_x 73)), 27547#(and (<= main_a_x 74) (not (= main_x main_y))), 27548#(and (<= main_a_x 75) (not (= main_x main_y))), 27549#(and (not (= main_x main_y)) (<= main_a_x 76)), 27550#(and (not (= main_x main_y)) (<= main_a_x 77)), 27551#(and (<= main_a_x 78) (not (= main_x main_y))), 27552#(and (<= main_a_x 79) (not (= main_x main_y))), 27553#(and (not (= main_x main_y)) (<= main_a_x 80)), 27554#(and (not (= main_x main_y)) (<= main_a_x 81)), 27555#(and (not (= main_x main_y)) (<= main_a_x 82)), 27556#(and (not (= main_x main_y)) (<= main_a_x 83)), 27557#(and (<= main_a_x 84) (not (= main_x main_y))), 27558#(and (not (= main_x main_y)) (<= main_a_x 85)), 27559#(and (not (= main_x main_y)) (<= main_a_x 86)), 27560#(and (<= main_a_x 87) (not (= main_x main_y))), 27561#(and (not (= main_x main_y)) (<= main_a_x 88)), 27562#(and (<= main_a_x 89) (not (= main_x main_y))), 27563#(and (not (= main_x main_y)) (<= main_a_x 90)), 27564#(and (<= main_a_x 91) (not (= main_x main_y))), 27565#(and (not (= main_x main_y)) (<= main_a_x 92)), 27566#(and (not (= main_x main_y)) (<= main_a_x 93)), 27567#(and (<= main_a_x 94) (not (= main_x main_y))), 27568#(and (<= main_a_x 95) (not (= main_x main_y))), 27569#(and (not (= main_x main_y)) (<= main_a_x 96)), 27570#(and (<= main_a_x 97) (not (= main_x main_y))), 27571#(and (not (= main_x main_y)) (<= main_a_x 98)), 27572#(and (<= main_a_x 99) (not (= main_x main_y))), 27573#(<= main_a_x 100)] [2018-07-23 13:52:50,245 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 13:52:50,246 INFO L450 AbstractCegarLoop]: Interpolant automaton has 103 states [2018-07-23 13:52:50,246 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2018-07-23 13:52:50,247 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5253, Invalid=5253, Unknown=0, NotChecked=0, Total=10506 [2018-07-23 13:52:50,247 INFO L87 Difference]: Start difference. First operand 104 states and 104 transitions. Second operand 103 states. [2018-07-23 13:52:50,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:50,311 INFO L93 Difference]: Finished difference Result 107 states and 107 transitions. [2018-07-23 13:52:50,311 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2018-07-23 13:52:50,311 INFO L78 Accepts]: Start accepts. Automaton has 103 states. Word has length 103 [2018-07-23 13:52:50,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:50,312 INFO L225 Difference]: With dead ends: 107 [2018-07-23 13:52:50,312 INFO L226 Difference]: Without dead ends: 105 [2018-07-23 13:52:50,313 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=5253, Invalid=5253, Unknown=0, NotChecked=0, Total=10506 [2018-07-23 13:52:50,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2018-07-23 13:52:50,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2018-07-23 13:52:50,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2018-07-23 13:52:50,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 105 transitions. [2018-07-23 13:52:50,319 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 105 transitions. Word has length 103 [2018-07-23 13:52:50,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:50,319 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 105 transitions. [2018-07-23 13:52:50,319 INFO L472 AbstractCegarLoop]: Interpolant automaton has 103 states. [2018-07-23 13:52:50,319 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 105 transitions. [2018-07-23 13:52:50,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-07-23 13:52:50,320 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:50,320 INFO L357 BasicCegarLoop]: trace histogram [101, 1, 1, 1] [2018-07-23 13:52:50,320 INFO L414 AbstractCegarLoop]: === Iteration 102 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:50,320 INFO L82 PathProgramCache]: Analyzing trace with hash -1742466265, now seen corresponding path program 101 times [2018-07-23 13:52:50,320 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:50,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:51,324 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 13:52:51,325 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:51,325 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [103] total 103 [2018-07-23 13:52:51,325 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:51,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:51,326 INFO L185 omatonBuilderFactory]: Interpolants [27998#true, 27999#false, 28000#(and (not (= main_x main_y)) (<= main_a_x 0)), 28001#(and (not (= main_x main_y)) (<= main_a_x 1)), 28002#(and (not (= main_x main_y)) (<= main_a_x 2)), 28003#(and (not (= main_x main_y)) (<= main_a_x 3)), 28004#(and (<= main_a_x 4) (not (= main_x main_y))), 28005#(and (<= main_a_x 5) (not (= main_x main_y))), 28006#(and (not (= main_x main_y)) (<= main_a_x 6)), 28007#(and (<= main_a_x 7) (not (= main_x main_y))), 28008#(and (not (= main_x main_y)) (<= main_a_x 8)), 28009#(and (not (= main_x main_y)) (<= main_a_x 9)), 28010#(and (<= main_a_x 10) (not (= main_x main_y))), 28011#(and (not (= main_x main_y)) (<= main_a_x 11)), 28012#(and (not (= main_x main_y)) (<= main_a_x 12)), 28013#(and (<= main_a_x 13) (not (= main_x main_y))), 28014#(and (not (= main_x main_y)) (<= main_a_x 14)), 28015#(and (<= main_a_x 15) (not (= main_x main_y))), 28016#(and (not (= main_x main_y)) (<= main_a_x 16)), 28017#(and (not (= main_x main_y)) (<= main_a_x 17)), 28018#(and (<= main_a_x 18) (not (= main_x main_y))), 28019#(and (<= main_a_x 19) (not (= main_x main_y))), 28020#(and (not (= main_x main_y)) (<= main_a_x 20)), 28021#(and (not (= main_x main_y)) (<= main_a_x 21)), 28022#(and (not (= main_x main_y)) (<= main_a_x 22)), 28023#(and (<= main_a_x 23) (not (= main_x main_y))), 28024#(and (not (= main_x main_y)) (<= main_a_x 24)), 28025#(and (<= main_a_x 25) (not (= main_x main_y))), 28026#(and (not (= main_x main_y)) (<= main_a_x 26)), 28027#(and (not (= main_x main_y)) (<= main_a_x 27)), 28028#(and (not (= main_x main_y)) (<= main_a_x 28)), 28029#(and (not (= main_x main_y)) (<= main_a_x 29)), 28030#(and (<= main_a_x 30) (not (= main_x main_y))), 28031#(and (<= main_a_x 31) (not (= main_x main_y))), 28032#(and (not (= main_x main_y)) (<= main_a_x 32)), 28033#(and (not (= main_x main_y)) (<= main_a_x 33)), 28034#(and (not (= main_x main_y)) (<= main_a_x 34)), 28035#(and (<= main_a_x 35) (not (= main_x main_y))), 28036#(and (not (= main_x main_y)) (<= main_a_x 36)), 28037#(and (<= main_a_x 37) (not (= main_x main_y))), 28038#(and (not (= main_x main_y)) (<= main_a_x 38)), 28039#(and (<= main_a_x 39) (not (= main_x main_y))), 28040#(and (<= main_a_x 40) (not (= main_x main_y))), 28041#(and (not (= main_x main_y)) (<= main_a_x 41)), 28042#(and (not (= main_x main_y)) (<= main_a_x 42)), 28043#(and (<= main_a_x 43) (not (= main_x main_y))), 28044#(and (<= main_a_x 44) (not (= main_x main_y))), 28045#(and (<= main_a_x 45) (not (= main_x main_y))), 28046#(and (<= main_a_x 46) (not (= main_x main_y))), 28047#(and (<= main_a_x 47) (not (= main_x main_y))), 28048#(and (<= main_a_x 48) (not (= main_x main_y))), 28049#(and (not (= main_x main_y)) (<= main_a_x 49)), 28050#(and (not (= main_x main_y)) (<= main_a_x 50)), 28051#(and (<= main_a_x 51) (not (= main_x main_y))), 28052#(and (not (= main_x main_y)) (<= main_a_x 52)), 28053#(and (<= main_a_x 53) (not (= main_x main_y))), 28054#(and (<= main_a_x 54) (not (= main_x main_y))), 28055#(and (not (= main_x main_y)) (<= main_a_x 55)), 28056#(and (not (= main_x main_y)) (<= main_a_x 56)), 28057#(and (not (= main_x main_y)) (<= main_a_x 57)), 28058#(and (not (= main_x main_y)) (<= main_a_x 58)), 28059#(and (not (= main_x main_y)) (<= main_a_x 59)), 28060#(and (<= main_a_x 60) (not (= main_x main_y))), 28061#(and (not (= main_x main_y)) (<= main_a_x 61)), 28062#(and (not (= main_x main_y)) (<= main_a_x 62)), 28063#(and (<= main_a_x 63) (not (= main_x main_y))), 28064#(and (<= main_a_x 64) (not (= main_x main_y))), 28065#(and (<= main_a_x 65) (not (= main_x main_y))), 28066#(and (<= main_a_x 66) (not (= main_x main_y))), 28067#(and (<= main_a_x 67) (not (= main_x main_y))), 28068#(and (not (= main_x main_y)) (<= main_a_x 68)), 28069#(and (<= main_a_x 69) (not (= main_x main_y))), 28070#(and (<= main_a_x 70) (not (= main_x main_y))), 28071#(and (<= main_a_x 71) (not (= main_x main_y))), 28072#(and (not (= main_x main_y)) (<= main_a_x 72)), 28073#(and (not (= main_x main_y)) (<= main_a_x 73)), 28074#(and (<= main_a_x 74) (not (= main_x main_y))), 28075#(and (<= main_a_x 75) (not (= main_x main_y))), 28076#(and (not (= main_x main_y)) (<= main_a_x 76)), 28077#(and (not (= main_x main_y)) (<= main_a_x 77)), 28078#(and (<= main_a_x 78) (not (= main_x main_y))), 28079#(and (<= main_a_x 79) (not (= main_x main_y))), 28080#(and (not (= main_x main_y)) (<= main_a_x 80)), 28081#(and (not (= main_x main_y)) (<= main_a_x 81)), 28082#(and (not (= main_x main_y)) (<= main_a_x 82)), 28083#(and (not (= main_x main_y)) (<= main_a_x 83)), 28084#(and (<= main_a_x 84) (not (= main_x main_y))), 28085#(and (not (= main_x main_y)) (<= main_a_x 85)), 28086#(and (not (= main_x main_y)) (<= main_a_x 86)), 28087#(and (<= main_a_x 87) (not (= main_x main_y))), 28088#(and (not (= main_x main_y)) (<= main_a_x 88)), 28089#(and (<= main_a_x 89) (not (= main_x main_y))), 28090#(and (not (= main_x main_y)) (<= main_a_x 90)), 28091#(and (<= main_a_x 91) (not (= main_x main_y))), 28092#(and (not (= main_x main_y)) (<= main_a_x 92)), 28093#(and (not (= main_x main_y)) (<= main_a_x 93)), 28094#(and (<= main_a_x 94) (not (= main_x main_y))), 28095#(and (<= main_a_x 95) (not (= main_x main_y))), 28096#(and (not (= main_x main_y)) (<= main_a_x 96)), 28097#(and (<= main_a_x 97) (not (= main_x main_y))), 28098#(and (not (= main_x main_y)) (<= main_a_x 98)), 28099#(and (<= main_a_x 99) (not (= main_x main_y))), 28100#(and (<= main_a_x 100) (not (= main_x main_y))), 28101#(<= main_a_x 101)] [2018-07-23 13:52:51,326 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 13:52:51,326 INFO L450 AbstractCegarLoop]: Interpolant automaton has 104 states [2018-07-23 13:52:51,327 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 104 interpolants. [2018-07-23 13:52:51,327 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5356, Invalid=5356, Unknown=0, NotChecked=0, Total=10712 [2018-07-23 13:52:51,327 INFO L87 Difference]: Start difference. First operand 105 states and 105 transitions. Second operand 104 states. [2018-07-23 13:52:51,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:51,402 INFO L93 Difference]: Finished difference Result 108 states and 108 transitions. [2018-07-23 13:52:51,402 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2018-07-23 13:52:51,402 INFO L78 Accepts]: Start accepts. Automaton has 104 states. Word has length 104 [2018-07-23 13:52:51,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:51,403 INFO L225 Difference]: With dead ends: 108 [2018-07-23 13:52:51,403 INFO L226 Difference]: Without dead ends: 106 [2018-07-23 13:52:51,404 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=5356, Invalid=5356, Unknown=0, NotChecked=0, Total=10712 [2018-07-23 13:52:51,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2018-07-23 13:52:51,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2018-07-23 13:52:51,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2018-07-23 13:52:51,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 106 transitions. [2018-07-23 13:52:51,410 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 106 transitions. Word has length 104 [2018-07-23 13:52:51,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:51,410 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 106 transitions. [2018-07-23 13:52:51,410 INFO L472 AbstractCegarLoop]: Interpolant automaton has 104 states. [2018-07-23 13:52:51,410 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 106 transitions. [2018-07-23 13:52:51,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-07-23 13:52:51,411 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:51,411 INFO L357 BasicCegarLoop]: trace histogram [102, 1, 1, 1] [2018-07-23 13:52:51,411 INFO L414 AbstractCegarLoop]: === Iteration 103 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:51,411 INFO L82 PathProgramCache]: Analyzing trace with hash 1818136012, now seen corresponding path program 102 times [2018-07-23 13:52:51,411 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:51,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:52,704 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 13:52:52,705 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:52,705 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [104] total 104 [2018-07-23 13:52:52,705 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:52,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:52,706 INFO L185 omatonBuilderFactory]: Interpolants [28530#true, 28531#false, 28532#(and (not (= main_x main_y)) (<= main_a_x 0)), 28533#(and (not (= main_x main_y)) (<= main_a_x 1)), 28534#(and (not (= main_x main_y)) (<= main_a_x 2)), 28535#(and (not (= main_x main_y)) (<= main_a_x 3)), 28536#(and (<= main_a_x 4) (not (= main_x main_y))), 28537#(and (<= main_a_x 5) (not (= main_x main_y))), 28538#(and (not (= main_x main_y)) (<= main_a_x 6)), 28539#(and (<= main_a_x 7) (not (= main_x main_y))), 28540#(and (not (= main_x main_y)) (<= main_a_x 8)), 28541#(and (not (= main_x main_y)) (<= main_a_x 9)), 28542#(and (<= main_a_x 10) (not (= main_x main_y))), 28543#(and (not (= main_x main_y)) (<= main_a_x 11)), 28544#(and (not (= main_x main_y)) (<= main_a_x 12)), 28545#(and (<= main_a_x 13) (not (= main_x main_y))), 28546#(and (not (= main_x main_y)) (<= main_a_x 14)), 28547#(and (<= main_a_x 15) (not (= main_x main_y))), 28548#(and (not (= main_x main_y)) (<= main_a_x 16)), 28549#(and (not (= main_x main_y)) (<= main_a_x 17)), 28550#(and (<= main_a_x 18) (not (= main_x main_y))), 28551#(and (<= main_a_x 19) (not (= main_x main_y))), 28552#(and (not (= main_x main_y)) (<= main_a_x 20)), 28553#(and (not (= main_x main_y)) (<= main_a_x 21)), 28554#(and (not (= main_x main_y)) (<= main_a_x 22)), 28555#(and (<= main_a_x 23) (not (= main_x main_y))), 28556#(and (not (= main_x main_y)) (<= main_a_x 24)), 28557#(and (<= main_a_x 25) (not (= main_x main_y))), 28558#(and (not (= main_x main_y)) (<= main_a_x 26)), 28559#(and (not (= main_x main_y)) (<= main_a_x 27)), 28560#(and (not (= main_x main_y)) (<= main_a_x 28)), 28561#(and (not (= main_x main_y)) (<= main_a_x 29)), 28562#(and (<= main_a_x 30) (not (= main_x main_y))), 28563#(and (<= main_a_x 31) (not (= main_x main_y))), 28564#(and (not (= main_x main_y)) (<= main_a_x 32)), 28565#(and (not (= main_x main_y)) (<= main_a_x 33)), 28566#(and (not (= main_x main_y)) (<= main_a_x 34)), 28567#(and (<= main_a_x 35) (not (= main_x main_y))), 28568#(and (not (= main_x main_y)) (<= main_a_x 36)), 28569#(and (<= main_a_x 37) (not (= main_x main_y))), 28570#(and (not (= main_x main_y)) (<= main_a_x 38)), 28571#(and (<= main_a_x 39) (not (= main_x main_y))), 28572#(and (<= main_a_x 40) (not (= main_x main_y))), 28573#(and (not (= main_x main_y)) (<= main_a_x 41)), 28574#(and (not (= main_x main_y)) (<= main_a_x 42)), 28575#(and (<= main_a_x 43) (not (= main_x main_y))), 28576#(and (<= main_a_x 44) (not (= main_x main_y))), 28577#(and (<= main_a_x 45) (not (= main_x main_y))), 28578#(and (<= main_a_x 46) (not (= main_x main_y))), 28579#(and (<= main_a_x 47) (not (= main_x main_y))), 28580#(and (<= main_a_x 48) (not (= main_x main_y))), 28581#(and (not (= main_x main_y)) (<= main_a_x 49)), 28582#(and (not (= main_x main_y)) (<= main_a_x 50)), 28583#(and (<= main_a_x 51) (not (= main_x main_y))), 28584#(and (not (= main_x main_y)) (<= main_a_x 52)), 28585#(and (<= main_a_x 53) (not (= main_x main_y))), 28586#(and (<= main_a_x 54) (not (= main_x main_y))), 28587#(and (not (= main_x main_y)) (<= main_a_x 55)), 28588#(and (not (= main_x main_y)) (<= main_a_x 56)), 28589#(and (not (= main_x main_y)) (<= main_a_x 57)), 28590#(and (not (= main_x main_y)) (<= main_a_x 58)), 28591#(and (not (= main_x main_y)) (<= main_a_x 59)), 28592#(and (<= main_a_x 60) (not (= main_x main_y))), 28593#(and (not (= main_x main_y)) (<= main_a_x 61)), 28594#(and (not (= main_x main_y)) (<= main_a_x 62)), 28595#(and (<= main_a_x 63) (not (= main_x main_y))), 28596#(and (<= main_a_x 64) (not (= main_x main_y))), 28597#(and (<= main_a_x 65) (not (= main_x main_y))), 28598#(and (<= main_a_x 66) (not (= main_x main_y))), 28599#(and (<= main_a_x 67) (not (= main_x main_y))), 28600#(and (not (= main_x main_y)) (<= main_a_x 68)), 28601#(and (<= main_a_x 69) (not (= main_x main_y))), 28602#(and (<= main_a_x 70) (not (= main_x main_y))), 28603#(and (<= main_a_x 71) (not (= main_x main_y))), 28604#(and (not (= main_x main_y)) (<= main_a_x 72)), 28605#(and (not (= main_x main_y)) (<= main_a_x 73)), 28606#(and (<= main_a_x 74) (not (= main_x main_y))), 28607#(and (<= main_a_x 75) (not (= main_x main_y))), 28608#(and (not (= main_x main_y)) (<= main_a_x 76)), 28609#(and (not (= main_x main_y)) (<= main_a_x 77)), 28610#(and (<= main_a_x 78) (not (= main_x main_y))), 28611#(and (<= main_a_x 79) (not (= main_x main_y))), 28612#(and (not (= main_x main_y)) (<= main_a_x 80)), 28613#(and (not (= main_x main_y)) (<= main_a_x 81)), 28614#(and (not (= main_x main_y)) (<= main_a_x 82)), 28615#(and (not (= main_x main_y)) (<= main_a_x 83)), 28616#(and (<= main_a_x 84) (not (= main_x main_y))), 28617#(and (not (= main_x main_y)) (<= main_a_x 85)), 28618#(and (not (= main_x main_y)) (<= main_a_x 86)), 28619#(and (<= main_a_x 87) (not (= main_x main_y))), 28620#(and (not (= main_x main_y)) (<= main_a_x 88)), 28621#(and (<= main_a_x 89) (not (= main_x main_y))), 28622#(and (not (= main_x main_y)) (<= main_a_x 90)), 28623#(and (<= main_a_x 91) (not (= main_x main_y))), 28624#(and (not (= main_x main_y)) (<= main_a_x 92)), 28625#(and (not (= main_x main_y)) (<= main_a_x 93)), 28626#(and (<= main_a_x 94) (not (= main_x main_y))), 28627#(and (<= main_a_x 95) (not (= main_x main_y))), 28628#(and (not (= main_x main_y)) (<= main_a_x 96)), 28629#(and (<= main_a_x 97) (not (= main_x main_y))), 28630#(and (not (= main_x main_y)) (<= main_a_x 98)), 28631#(and (<= main_a_x 99) (not (= main_x main_y))), 28632#(and (<= main_a_x 100) (not (= main_x main_y))), 28633#(and (not (= main_x main_y)) (<= main_a_x 101)), 28634#(<= main_a_x 102)] [2018-07-23 13:52:52,706 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 13:52:52,706 INFO L450 AbstractCegarLoop]: Interpolant automaton has 105 states [2018-07-23 13:52:52,707 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2018-07-23 13:52:52,707 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5460, Invalid=5460, Unknown=0, NotChecked=0, Total=10920 [2018-07-23 13:52:52,708 INFO L87 Difference]: Start difference. First operand 106 states and 106 transitions. Second operand 105 states. [2018-07-23 13:52:52,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:52,804 INFO L93 Difference]: Finished difference Result 109 states and 109 transitions. [2018-07-23 13:52:52,804 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2018-07-23 13:52:52,804 INFO L78 Accepts]: Start accepts. Automaton has 105 states. Word has length 105 [2018-07-23 13:52:52,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:52,805 INFO L225 Difference]: With dead ends: 109 [2018-07-23 13:52:52,805 INFO L226 Difference]: Without dead ends: 107 [2018-07-23 13:52:52,805 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=5460, Invalid=5460, Unknown=0, NotChecked=0, Total=10920 [2018-07-23 13:52:52,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2018-07-23 13:52:52,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2018-07-23 13:52:52,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2018-07-23 13:52:52,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 107 transitions. [2018-07-23 13:52:52,811 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 107 transitions. Word has length 105 [2018-07-23 13:52:52,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:52,811 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 107 transitions. [2018-07-23 13:52:52,811 INFO L472 AbstractCegarLoop]: Interpolant automaton has 105 states. [2018-07-23 13:52:52,811 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 107 transitions. [2018-07-23 13:52:52,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2018-07-23 13:52:52,811 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:52,812 INFO L357 BasicCegarLoop]: trace histogram [103, 1, 1, 1] [2018-07-23 13:52:52,812 INFO L414 AbstractCegarLoop]: === Iteration 104 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:52,812 INFO L82 PathProgramCache]: Analyzing trace with hash 527656903, now seen corresponding path program 103 times [2018-07-23 13:52:52,812 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:52,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:53,832 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 13:52:53,832 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:53,833 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [105] total 105 [2018-07-23 13:52:53,833 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:53,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:53,833 INFO L185 omatonBuilderFactory]: Interpolants [29067#true, 29068#false, 29069#(and (not (= main_x main_y)) (<= main_a_x 0)), 29070#(and (not (= main_x main_y)) (<= main_a_x 1)), 29071#(and (not (= main_x main_y)) (<= main_a_x 2)), 29072#(and (not (= main_x main_y)) (<= main_a_x 3)), 29073#(and (<= main_a_x 4) (not (= main_x main_y))), 29074#(and (<= main_a_x 5) (not (= main_x main_y))), 29075#(and (not (= main_x main_y)) (<= main_a_x 6)), 29076#(and (<= main_a_x 7) (not (= main_x main_y))), 29077#(and (not (= main_x main_y)) (<= main_a_x 8)), 29078#(and (not (= main_x main_y)) (<= main_a_x 9)), 29079#(and (<= main_a_x 10) (not (= main_x main_y))), 29080#(and (not (= main_x main_y)) (<= main_a_x 11)), 29081#(and (not (= main_x main_y)) (<= main_a_x 12)), 29082#(and (<= main_a_x 13) (not (= main_x main_y))), 29083#(and (not (= main_x main_y)) (<= main_a_x 14)), 29084#(and (<= main_a_x 15) (not (= main_x main_y))), 29085#(and (not (= main_x main_y)) (<= main_a_x 16)), 29086#(and (not (= main_x main_y)) (<= main_a_x 17)), 29087#(and (<= main_a_x 18) (not (= main_x main_y))), 29088#(and (<= main_a_x 19) (not (= main_x main_y))), 29089#(and (not (= main_x main_y)) (<= main_a_x 20)), 29090#(and (not (= main_x main_y)) (<= main_a_x 21)), 29091#(and (not (= main_x main_y)) (<= main_a_x 22)), 29092#(and (<= main_a_x 23) (not (= main_x main_y))), 29093#(and (not (= main_x main_y)) (<= main_a_x 24)), 29094#(and (<= main_a_x 25) (not (= main_x main_y))), 29095#(and (not (= main_x main_y)) (<= main_a_x 26)), 29096#(and (not (= main_x main_y)) (<= main_a_x 27)), 29097#(and (not (= main_x main_y)) (<= main_a_x 28)), 29098#(and (not (= main_x main_y)) (<= main_a_x 29)), 29099#(and (<= main_a_x 30) (not (= main_x main_y))), 29100#(and (<= main_a_x 31) (not (= main_x main_y))), 29101#(and (not (= main_x main_y)) (<= main_a_x 32)), 29102#(and (not (= main_x main_y)) (<= main_a_x 33)), 29103#(and (not (= main_x main_y)) (<= main_a_x 34)), 29104#(and (<= main_a_x 35) (not (= main_x main_y))), 29105#(and (not (= main_x main_y)) (<= main_a_x 36)), 29106#(and (<= main_a_x 37) (not (= main_x main_y))), 29107#(and (not (= main_x main_y)) (<= main_a_x 38)), 29108#(and (<= main_a_x 39) (not (= main_x main_y))), 29109#(and (<= main_a_x 40) (not (= main_x main_y))), 29110#(and (not (= main_x main_y)) (<= main_a_x 41)), 29111#(and (not (= main_x main_y)) (<= main_a_x 42)), 29112#(and (<= main_a_x 43) (not (= main_x main_y))), 29113#(and (<= main_a_x 44) (not (= main_x main_y))), 29114#(and (<= main_a_x 45) (not (= main_x main_y))), 29115#(and (<= main_a_x 46) (not (= main_x main_y))), 29116#(and (<= main_a_x 47) (not (= main_x main_y))), 29117#(and (<= main_a_x 48) (not (= main_x main_y))), 29118#(and (not (= main_x main_y)) (<= main_a_x 49)), 29119#(and (not (= main_x main_y)) (<= main_a_x 50)), 29120#(and (<= main_a_x 51) (not (= main_x main_y))), 29121#(and (not (= main_x main_y)) (<= main_a_x 52)), 29122#(and (<= main_a_x 53) (not (= main_x main_y))), 29123#(and (<= main_a_x 54) (not (= main_x main_y))), 29124#(and (not (= main_x main_y)) (<= main_a_x 55)), 29125#(and (not (= main_x main_y)) (<= main_a_x 56)), 29126#(and (not (= main_x main_y)) (<= main_a_x 57)), 29127#(and (not (= main_x main_y)) (<= main_a_x 58)), 29128#(and (not (= main_x main_y)) (<= main_a_x 59)), 29129#(and (<= main_a_x 60) (not (= main_x main_y))), 29130#(and (not (= main_x main_y)) (<= main_a_x 61)), 29131#(and (not (= main_x main_y)) (<= main_a_x 62)), 29132#(and (<= main_a_x 63) (not (= main_x main_y))), 29133#(and (<= main_a_x 64) (not (= main_x main_y))), 29134#(and (<= main_a_x 65) (not (= main_x main_y))), 29135#(and (<= main_a_x 66) (not (= main_x main_y))), 29136#(and (<= main_a_x 67) (not (= main_x main_y))), 29137#(and (not (= main_x main_y)) (<= main_a_x 68)), 29138#(and (<= main_a_x 69) (not (= main_x main_y))), 29139#(and (<= main_a_x 70) (not (= main_x main_y))), 29140#(and (<= main_a_x 71) (not (= main_x main_y))), 29141#(and (not (= main_x main_y)) (<= main_a_x 72)), 29142#(and (not (= main_x main_y)) (<= main_a_x 73)), 29143#(and (<= main_a_x 74) (not (= main_x main_y))), 29144#(and (<= main_a_x 75) (not (= main_x main_y))), 29145#(and (not (= main_x main_y)) (<= main_a_x 76)), 29146#(and (not (= main_x main_y)) (<= main_a_x 77)), 29147#(and (<= main_a_x 78) (not (= main_x main_y))), 29148#(and (<= main_a_x 79) (not (= main_x main_y))), 29149#(and (not (= main_x main_y)) (<= main_a_x 80)), 29150#(and (not (= main_x main_y)) (<= main_a_x 81)), 29151#(and (not (= main_x main_y)) (<= main_a_x 82)), 29152#(and (not (= main_x main_y)) (<= main_a_x 83)), 29153#(and (<= main_a_x 84) (not (= main_x main_y))), 29154#(and (not (= main_x main_y)) (<= main_a_x 85)), 29155#(and (not (= main_x main_y)) (<= main_a_x 86)), 29156#(and (<= main_a_x 87) (not (= main_x main_y))), 29157#(and (not (= main_x main_y)) (<= main_a_x 88)), 29158#(and (<= main_a_x 89) (not (= main_x main_y))), 29159#(and (not (= main_x main_y)) (<= main_a_x 90)), 29160#(and (<= main_a_x 91) (not (= main_x main_y))), 29161#(and (not (= main_x main_y)) (<= main_a_x 92)), 29162#(and (not (= main_x main_y)) (<= main_a_x 93)), 29163#(and (<= main_a_x 94) (not (= main_x main_y))), 29164#(and (<= main_a_x 95) (not (= main_x main_y))), 29165#(and (not (= main_x main_y)) (<= main_a_x 96)), 29166#(and (<= main_a_x 97) (not (= main_x main_y))), 29167#(and (not (= main_x main_y)) (<= main_a_x 98)), 29168#(and (<= main_a_x 99) (not (= main_x main_y))), 29169#(and (<= main_a_x 100) (not (= main_x main_y))), 29170#(and (not (= main_x main_y)) (<= main_a_x 101)), 29171#(and (not (= main_x main_y)) (<= main_a_x 102)), 29172#(<= main_a_x 103)] [2018-07-23 13:52:53,834 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 13:52:53,834 INFO L450 AbstractCegarLoop]: Interpolant automaton has 106 states [2018-07-23 13:52:53,835 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 106 interpolants. [2018-07-23 13:52:53,836 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5565, Invalid=5565, Unknown=0, NotChecked=0, Total=11130 [2018-07-23 13:52:53,836 INFO L87 Difference]: Start difference. First operand 107 states and 107 transitions. Second operand 106 states. [2018-07-23 13:52:53,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:53,958 INFO L93 Difference]: Finished difference Result 110 states and 110 transitions. [2018-07-23 13:52:53,958 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2018-07-23 13:52:53,958 INFO L78 Accepts]: Start accepts. Automaton has 106 states. Word has length 106 [2018-07-23 13:52:53,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:53,958 INFO L225 Difference]: With dead ends: 110 [2018-07-23 13:52:53,959 INFO L226 Difference]: Without dead ends: 108 [2018-07-23 13:52:53,959 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=5565, Invalid=5565, Unknown=0, NotChecked=0, Total=11130 [2018-07-23 13:52:53,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2018-07-23 13:52:53,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2018-07-23 13:52:53,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2018-07-23 13:52:53,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 108 transitions. [2018-07-23 13:52:53,963 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 108 transitions. Word has length 106 [2018-07-23 13:52:53,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:53,963 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 108 transitions. [2018-07-23 13:52:53,963 INFO L472 AbstractCegarLoop]: Interpolant automaton has 106 states. [2018-07-23 13:52:53,964 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 108 transitions. [2018-07-23 13:52:53,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2018-07-23 13:52:53,964 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:53,964 INFO L357 BasicCegarLoop]: trace histogram [104, 1, 1, 1] [2018-07-23 13:52:53,964 INFO L414 AbstractCegarLoop]: === Iteration 105 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:53,964 INFO L82 PathProgramCache]: Analyzing trace with hash -822489812, now seen corresponding path program 104 times [2018-07-23 13:52:53,964 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:54,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:55,062 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 13:52:55,062 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:55,062 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [106] total 106 [2018-07-23 13:52:55,062 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:55,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:55,063 INFO L185 omatonBuilderFactory]: Interpolants [29696#(and (not (= main_x main_y)) (<= main_a_x 85)), 29697#(and (not (= main_x main_y)) (<= main_a_x 86)), 29698#(and (<= main_a_x 87) (not (= main_x main_y))), 29699#(and (not (= main_x main_y)) (<= main_a_x 88)), 29700#(and (<= main_a_x 89) (not (= main_x main_y))), 29701#(and (not (= main_x main_y)) (<= main_a_x 90)), 29702#(and (<= main_a_x 91) (not (= main_x main_y))), 29703#(and (not (= main_x main_y)) (<= main_a_x 92)), 29704#(and (not (= main_x main_y)) (<= main_a_x 93)), 29705#(and (<= main_a_x 94) (not (= main_x main_y))), 29706#(and (<= main_a_x 95) (not (= main_x main_y))), 29707#(and (not (= main_x main_y)) (<= main_a_x 96)), 29708#(and (<= main_a_x 97) (not (= main_x main_y))), 29709#(and (not (= main_x main_y)) (<= main_a_x 98)), 29710#(and (<= main_a_x 99) (not (= main_x main_y))), 29711#(and (<= main_a_x 100) (not (= main_x main_y))), 29712#(and (not (= main_x main_y)) (<= main_a_x 101)), 29713#(and (not (= main_x main_y)) (<= main_a_x 102)), 29714#(and (not (= main_x main_y)) (<= main_a_x 103)), 29715#(<= main_a_x 104), 29609#true, 29610#false, 29611#(and (not (= main_x main_y)) (<= main_a_x 0)), 29612#(and (not (= main_x main_y)) (<= main_a_x 1)), 29613#(and (not (= main_x main_y)) (<= main_a_x 2)), 29614#(and (not (= main_x main_y)) (<= main_a_x 3)), 29615#(and (<= main_a_x 4) (not (= main_x main_y))), 29616#(and (<= main_a_x 5) (not (= main_x main_y))), 29617#(and (not (= main_x main_y)) (<= main_a_x 6)), 29618#(and (<= main_a_x 7) (not (= main_x main_y))), 29619#(and (not (= main_x main_y)) (<= main_a_x 8)), 29620#(and (not (= main_x main_y)) (<= main_a_x 9)), 29621#(and (<= main_a_x 10) (not (= main_x main_y))), 29622#(and (not (= main_x main_y)) (<= main_a_x 11)), 29623#(and (not (= main_x main_y)) (<= main_a_x 12)), 29624#(and (<= main_a_x 13) (not (= main_x main_y))), 29625#(and (not (= main_x main_y)) (<= main_a_x 14)), 29626#(and (<= main_a_x 15) (not (= main_x main_y))), 29627#(and (not (= main_x main_y)) (<= main_a_x 16)), 29628#(and (not (= main_x main_y)) (<= main_a_x 17)), 29629#(and (<= main_a_x 18) (not (= main_x main_y))), 29630#(and (<= main_a_x 19) (not (= main_x main_y))), 29631#(and (not (= main_x main_y)) (<= main_a_x 20)), 29632#(and (not (= main_x main_y)) (<= main_a_x 21)), 29633#(and (not (= main_x main_y)) (<= main_a_x 22)), 29634#(and (<= main_a_x 23) (not (= main_x main_y))), 29635#(and (not (= main_x main_y)) (<= main_a_x 24)), 29636#(and (<= main_a_x 25) (not (= main_x main_y))), 29637#(and (not (= main_x main_y)) (<= main_a_x 26)), 29638#(and (not (= main_x main_y)) (<= main_a_x 27)), 29639#(and (not (= main_x main_y)) (<= main_a_x 28)), 29640#(and (not (= main_x main_y)) (<= main_a_x 29)), 29641#(and (<= main_a_x 30) (not (= main_x main_y))), 29642#(and (<= main_a_x 31) (not (= main_x main_y))), 29643#(and (not (= main_x main_y)) (<= main_a_x 32)), 29644#(and (not (= main_x main_y)) (<= main_a_x 33)), 29645#(and (not (= main_x main_y)) (<= main_a_x 34)), 29646#(and (<= main_a_x 35) (not (= main_x main_y))), 29647#(and (not (= main_x main_y)) (<= main_a_x 36)), 29648#(and (<= main_a_x 37) (not (= main_x main_y))), 29649#(and (not (= main_x main_y)) (<= main_a_x 38)), 29650#(and (<= main_a_x 39) (not (= main_x main_y))), 29651#(and (<= main_a_x 40) (not (= main_x main_y))), 29652#(and (not (= main_x main_y)) (<= main_a_x 41)), 29653#(and (not (= main_x main_y)) (<= main_a_x 42)), 29654#(and (<= main_a_x 43) (not (= main_x main_y))), 29655#(and (<= main_a_x 44) (not (= main_x main_y))), 29656#(and (<= main_a_x 45) (not (= main_x main_y))), 29657#(and (<= main_a_x 46) (not (= main_x main_y))), 29658#(and (<= main_a_x 47) (not (= main_x main_y))), 29659#(and (<= main_a_x 48) (not (= main_x main_y))), 29660#(and (not (= main_x main_y)) (<= main_a_x 49)), 29661#(and (not (= main_x main_y)) (<= main_a_x 50)), 29662#(and (<= main_a_x 51) (not (= main_x main_y))), 29663#(and (not (= main_x main_y)) (<= main_a_x 52)), 29664#(and (<= main_a_x 53) (not (= main_x main_y))), 29665#(and (<= main_a_x 54) (not (= main_x main_y))), 29666#(and (not (= main_x main_y)) (<= main_a_x 55)), 29667#(and (not (= main_x main_y)) (<= main_a_x 56)), 29668#(and (not (= main_x main_y)) (<= main_a_x 57)), 29669#(and (not (= main_x main_y)) (<= main_a_x 58)), 29670#(and (not (= main_x main_y)) (<= main_a_x 59)), 29671#(and (<= main_a_x 60) (not (= main_x main_y))), 29672#(and (not (= main_x main_y)) (<= main_a_x 61)), 29673#(and (not (= main_x main_y)) (<= main_a_x 62)), 29674#(and (<= main_a_x 63) (not (= main_x main_y))), 29675#(and (<= main_a_x 64) (not (= main_x main_y))), 29676#(and (<= main_a_x 65) (not (= main_x main_y))), 29677#(and (<= main_a_x 66) (not (= main_x main_y))), 29678#(and (<= main_a_x 67) (not (= main_x main_y))), 29679#(and (not (= main_x main_y)) (<= main_a_x 68)), 29680#(and (<= main_a_x 69) (not (= main_x main_y))), 29681#(and (<= main_a_x 70) (not (= main_x main_y))), 29682#(and (<= main_a_x 71) (not (= main_x main_y))), 29683#(and (not (= main_x main_y)) (<= main_a_x 72)), 29684#(and (not (= main_x main_y)) (<= main_a_x 73)), 29685#(and (<= main_a_x 74) (not (= main_x main_y))), 29686#(and (<= main_a_x 75) (not (= main_x main_y))), 29687#(and (not (= main_x main_y)) (<= main_a_x 76)), 29688#(and (not (= main_x main_y)) (<= main_a_x 77)), 29689#(and (<= main_a_x 78) (not (= main_x main_y))), 29690#(and (<= main_a_x 79) (not (= main_x main_y))), 29691#(and (not (= main_x main_y)) (<= main_a_x 80)), 29692#(and (not (= main_x main_y)) (<= main_a_x 81)), 29693#(and (not (= main_x main_y)) (<= main_a_x 82)), 29694#(and (not (= main_x main_y)) (<= main_a_x 83)), 29695#(and (<= main_a_x 84) (not (= main_x main_y)))] [2018-07-23 13:52:55,063 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 13:52:55,063 INFO L450 AbstractCegarLoop]: Interpolant automaton has 107 states [2018-07-23 13:52:55,064 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 107 interpolants. [2018-07-23 13:52:55,064 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5671, Invalid=5671, Unknown=0, NotChecked=0, Total=11342 [2018-07-23 13:52:55,064 INFO L87 Difference]: Start difference. First operand 108 states and 108 transitions. Second operand 107 states. [2018-07-23 13:52:55,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:55,129 INFO L93 Difference]: Finished difference Result 111 states and 111 transitions. [2018-07-23 13:52:55,129 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2018-07-23 13:52:55,129 INFO L78 Accepts]: Start accepts. Automaton has 107 states. Word has length 107 [2018-07-23 13:52:55,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:55,130 INFO L225 Difference]: With dead ends: 111 [2018-07-23 13:52:55,130 INFO L226 Difference]: Without dead ends: 109 [2018-07-23 13:52:55,131 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=5671, Invalid=5671, Unknown=0, NotChecked=0, Total=11342 [2018-07-23 13:52:55,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2018-07-23 13:52:55,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2018-07-23 13:52:55,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2018-07-23 13:52:55,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 109 transitions. [2018-07-23 13:52:55,136 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 109 transitions. Word has length 107 [2018-07-23 13:52:55,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:55,136 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 109 transitions. [2018-07-23 13:52:55,136 INFO L472 AbstractCegarLoop]: Interpolant automaton has 107 states. [2018-07-23 13:52:55,137 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 109 transitions. [2018-07-23 13:52:55,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2018-07-23 13:52:55,137 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:55,137 INFO L357 BasicCegarLoop]: trace histogram [105, 1, 1, 1] [2018-07-23 13:52:55,137 INFO L414 AbstractCegarLoop]: === Iteration 106 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:55,138 INFO L82 PathProgramCache]: Analyzing trace with hash 272634983, now seen corresponding path program 105 times [2018-07-23 13:52:55,138 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:55,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:56,367 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 13:52:56,367 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:56,367 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [107] total 107 [2018-07-23 13:52:56,367 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:56,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:56,368 INFO L185 omatonBuilderFactory]: Interpolants [30208#(and (not (= main_x main_y)) (<= main_a_x 50)), 30209#(and (<= main_a_x 51) (not (= main_x main_y))), 30210#(and (not (= main_x main_y)) (<= main_a_x 52)), 30211#(and (<= main_a_x 53) (not (= main_x main_y))), 30212#(and (<= main_a_x 54) (not (= main_x main_y))), 30213#(and (not (= main_x main_y)) (<= main_a_x 55)), 30214#(and (not (= main_x main_y)) (<= main_a_x 56)), 30215#(and (not (= main_x main_y)) (<= main_a_x 57)), 30216#(and (not (= main_x main_y)) (<= main_a_x 58)), 30217#(and (not (= main_x main_y)) (<= main_a_x 59)), 30218#(and (<= main_a_x 60) (not (= main_x main_y))), 30219#(and (not (= main_x main_y)) (<= main_a_x 61)), 30220#(and (not (= main_x main_y)) (<= main_a_x 62)), 30221#(and (<= main_a_x 63) (not (= main_x main_y))), 30222#(and (<= main_a_x 64) (not (= main_x main_y))), 30223#(and (<= main_a_x 65) (not (= main_x main_y))), 30224#(and (<= main_a_x 66) (not (= main_x main_y))), 30225#(and (<= main_a_x 67) (not (= main_x main_y))), 30226#(and (not (= main_x main_y)) (<= main_a_x 68)), 30227#(and (<= main_a_x 69) (not (= main_x main_y))), 30228#(and (<= main_a_x 70) (not (= main_x main_y))), 30229#(and (<= main_a_x 71) (not (= main_x main_y))), 30230#(and (not (= main_x main_y)) (<= main_a_x 72)), 30231#(and (not (= main_x main_y)) (<= main_a_x 73)), 30232#(and (<= main_a_x 74) (not (= main_x main_y))), 30233#(and (<= main_a_x 75) (not (= main_x main_y))), 30234#(and (not (= main_x main_y)) (<= main_a_x 76)), 30235#(and (not (= main_x main_y)) (<= main_a_x 77)), 30236#(and (<= main_a_x 78) (not (= main_x main_y))), 30237#(and (<= main_a_x 79) (not (= main_x main_y))), 30238#(and (not (= main_x main_y)) (<= main_a_x 80)), 30239#(and (not (= main_x main_y)) (<= main_a_x 81)), 30240#(and (not (= main_x main_y)) (<= main_a_x 82)), 30241#(and (not (= main_x main_y)) (<= main_a_x 83)), 30242#(and (<= main_a_x 84) (not (= main_x main_y))), 30243#(and (not (= main_x main_y)) (<= main_a_x 85)), 30244#(and (not (= main_x main_y)) (<= main_a_x 86)), 30245#(and (<= main_a_x 87) (not (= main_x main_y))), 30246#(and (not (= main_x main_y)) (<= main_a_x 88)), 30247#(and (<= main_a_x 89) (not (= main_x main_y))), 30248#(and (not (= main_x main_y)) (<= main_a_x 90)), 30249#(and (<= main_a_x 91) (not (= main_x main_y))), 30250#(and (not (= main_x main_y)) (<= main_a_x 92)), 30251#(and (not (= main_x main_y)) (<= main_a_x 93)), 30252#(and (<= main_a_x 94) (not (= main_x main_y))), 30253#(and (<= main_a_x 95) (not (= main_x main_y))), 30254#(and (not (= main_x main_y)) (<= main_a_x 96)), 30255#(and (<= main_a_x 97) (not (= main_x main_y))), 30256#(and (not (= main_x main_y)) (<= main_a_x 98)), 30257#(and (<= main_a_x 99) (not (= main_x main_y))), 30258#(and (<= main_a_x 100) (not (= main_x main_y))), 30259#(and (not (= main_x main_y)) (<= main_a_x 101)), 30260#(and (not (= main_x main_y)) (<= main_a_x 102)), 30261#(and (not (= main_x main_y)) (<= main_a_x 103)), 30262#(and (<= main_a_x 104) (not (= main_x main_y))), 30263#(<= main_a_x 105), 30156#true, 30157#false, 30158#(and (not (= main_x main_y)) (<= main_a_x 0)), 30159#(and (not (= main_x main_y)) (<= main_a_x 1)), 30160#(and (not (= main_x main_y)) (<= main_a_x 2)), 30161#(and (not (= main_x main_y)) (<= main_a_x 3)), 30162#(and (<= main_a_x 4) (not (= main_x main_y))), 30163#(and (<= main_a_x 5) (not (= main_x main_y))), 30164#(and (not (= main_x main_y)) (<= main_a_x 6)), 30165#(and (<= main_a_x 7) (not (= main_x main_y))), 30166#(and (not (= main_x main_y)) (<= main_a_x 8)), 30167#(and (not (= main_x main_y)) (<= main_a_x 9)), 30168#(and (<= main_a_x 10) (not (= main_x main_y))), 30169#(and (not (= main_x main_y)) (<= main_a_x 11)), 30170#(and (not (= main_x main_y)) (<= main_a_x 12)), 30171#(and (<= main_a_x 13) (not (= main_x main_y))), 30172#(and (not (= main_x main_y)) (<= main_a_x 14)), 30173#(and (<= main_a_x 15) (not (= main_x main_y))), 30174#(and (not (= main_x main_y)) (<= main_a_x 16)), 30175#(and (not (= main_x main_y)) (<= main_a_x 17)), 30176#(and (<= main_a_x 18) (not (= main_x main_y))), 30177#(and (<= main_a_x 19) (not (= main_x main_y))), 30178#(and (not (= main_x main_y)) (<= main_a_x 20)), 30179#(and (not (= main_x main_y)) (<= main_a_x 21)), 30180#(and (not (= main_x main_y)) (<= main_a_x 22)), 30181#(and (<= main_a_x 23) (not (= main_x main_y))), 30182#(and (not (= main_x main_y)) (<= main_a_x 24)), 30183#(and (<= main_a_x 25) (not (= main_x main_y))), 30184#(and (not (= main_x main_y)) (<= main_a_x 26)), 30185#(and (not (= main_x main_y)) (<= main_a_x 27)), 30186#(and (not (= main_x main_y)) (<= main_a_x 28)), 30187#(and (not (= main_x main_y)) (<= main_a_x 29)), 30188#(and (<= main_a_x 30) (not (= main_x main_y))), 30189#(and (<= main_a_x 31) (not (= main_x main_y))), 30190#(and (not (= main_x main_y)) (<= main_a_x 32)), 30191#(and (not (= main_x main_y)) (<= main_a_x 33)), 30192#(and (not (= main_x main_y)) (<= main_a_x 34)), 30193#(and (<= main_a_x 35) (not (= main_x main_y))), 30194#(and (not (= main_x main_y)) (<= main_a_x 36)), 30195#(and (<= main_a_x 37) (not (= main_x main_y))), 30196#(and (not (= main_x main_y)) (<= main_a_x 38)), 30197#(and (<= main_a_x 39) (not (= main_x main_y))), 30198#(and (<= main_a_x 40) (not (= main_x main_y))), 30199#(and (not (= main_x main_y)) (<= main_a_x 41)), 30200#(and (not (= main_x main_y)) (<= main_a_x 42)), 30201#(and (<= main_a_x 43) (not (= main_x main_y))), 30202#(and (<= main_a_x 44) (not (= main_x main_y))), 30203#(and (<= main_a_x 45) (not (= main_x main_y))), 30204#(and (<= main_a_x 46) (not (= main_x main_y))), 30205#(and (<= main_a_x 47) (not (= main_x main_y))), 30206#(and (<= main_a_x 48) (not (= main_x main_y))), 30207#(and (not (= main_x main_y)) (<= main_a_x 49))] [2018-07-23 13:52:56,368 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 13:52:56,368 INFO L450 AbstractCegarLoop]: Interpolant automaton has 108 states [2018-07-23 13:52:56,369 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 108 interpolants. [2018-07-23 13:52:56,369 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5778, Invalid=5778, Unknown=0, NotChecked=0, Total=11556 [2018-07-23 13:52:56,369 INFO L87 Difference]: Start difference. First operand 109 states and 109 transitions. Second operand 108 states. [2018-07-23 13:52:56,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:56,425 INFO L93 Difference]: Finished difference Result 112 states and 112 transitions. [2018-07-23 13:52:56,425 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2018-07-23 13:52:56,425 INFO L78 Accepts]: Start accepts. Automaton has 108 states. Word has length 108 [2018-07-23 13:52:56,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:56,425 INFO L225 Difference]: With dead ends: 112 [2018-07-23 13:52:56,425 INFO L226 Difference]: Without dead ends: 110 [2018-07-23 13:52:56,426 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 13:52:56,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2018-07-23 13:52:56,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2018-07-23 13:52:56,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2018-07-23 13:52:56,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 110 transitions. [2018-07-23 13:52:56,431 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 110 transitions. Word has length 108 [2018-07-23 13:52:56,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:56,431 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 110 transitions. [2018-07-23 13:52:56,431 INFO L472 AbstractCegarLoop]: Interpolant automaton has 108 states. [2018-07-23 13:52:56,431 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 110 transitions. [2018-07-23 13:52:56,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-07-23 13:52:56,432 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:56,432 INFO L357 BasicCegarLoop]: trace histogram [106, 1, 1, 1] [2018-07-23 13:52:56,432 INFO L414 AbstractCegarLoop]: === Iteration 107 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:56,432 INFO L82 PathProgramCache]: Analyzing trace with hash -138234740, now seen corresponding path program 106 times [2018-07-23 13:52:56,433 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:56,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:57,427 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 13:52:57,427 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:57,427 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [108] total 108 [2018-07-23 13:52:57,428 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:57,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:57,428 INFO L185 omatonBuilderFactory]: Interpolants [30720#(and (<= main_a_x 10) (not (= main_x main_y))), 30721#(and (not (= main_x main_y)) (<= main_a_x 11)), 30722#(and (not (= main_x main_y)) (<= main_a_x 12)), 30723#(and (<= main_a_x 13) (not (= main_x main_y))), 30724#(and (not (= main_x main_y)) (<= main_a_x 14)), 30725#(and (<= main_a_x 15) (not (= main_x main_y))), 30726#(and (not (= main_x main_y)) (<= main_a_x 16)), 30727#(and (not (= main_x main_y)) (<= main_a_x 17)), 30728#(and (<= main_a_x 18) (not (= main_x main_y))), 30729#(and (<= main_a_x 19) (not (= main_x main_y))), 30730#(and (not (= main_x main_y)) (<= main_a_x 20)), 30731#(and (not (= main_x main_y)) (<= main_a_x 21)), 30732#(and (not (= main_x main_y)) (<= main_a_x 22)), 30733#(and (<= main_a_x 23) (not (= main_x main_y))), 30734#(and (not (= main_x main_y)) (<= main_a_x 24)), 30735#(and (<= main_a_x 25) (not (= main_x main_y))), 30736#(and (not (= main_x main_y)) (<= main_a_x 26)), 30737#(and (not (= main_x main_y)) (<= main_a_x 27)), 30738#(and (not (= main_x main_y)) (<= main_a_x 28)), 30739#(and (not (= main_x main_y)) (<= main_a_x 29)), 30740#(and (<= main_a_x 30) (not (= main_x main_y))), 30741#(and (<= main_a_x 31) (not (= main_x main_y))), 30742#(and (not (= main_x main_y)) (<= main_a_x 32)), 30743#(and (not (= main_x main_y)) (<= main_a_x 33)), 30744#(and (not (= main_x main_y)) (<= main_a_x 34)), 30745#(and (<= main_a_x 35) (not (= main_x main_y))), 30746#(and (not (= main_x main_y)) (<= main_a_x 36)), 30747#(and (<= main_a_x 37) (not (= main_x main_y))), 30748#(and (not (= main_x main_y)) (<= main_a_x 38)), 30749#(and (<= main_a_x 39) (not (= main_x main_y))), 30750#(and (<= main_a_x 40) (not (= main_x main_y))), 30751#(and (not (= main_x main_y)) (<= main_a_x 41)), 30752#(and (not (= main_x main_y)) (<= main_a_x 42)), 30753#(and (<= main_a_x 43) (not (= main_x main_y))), 30754#(and (<= main_a_x 44) (not (= main_x main_y))), 30755#(and (<= main_a_x 45) (not (= main_x main_y))), 30756#(and (<= main_a_x 46) (not (= main_x main_y))), 30757#(and (<= main_a_x 47) (not (= main_x main_y))), 30758#(and (<= main_a_x 48) (not (= main_x main_y))), 30759#(and (not (= main_x main_y)) (<= main_a_x 49)), 30760#(and (not (= main_x main_y)) (<= main_a_x 50)), 30761#(and (<= main_a_x 51) (not (= main_x main_y))), 30762#(and (not (= main_x main_y)) (<= main_a_x 52)), 30763#(and (<= main_a_x 53) (not (= main_x main_y))), 30764#(and (<= main_a_x 54) (not (= main_x main_y))), 30765#(and (not (= main_x main_y)) (<= main_a_x 55)), 30766#(and (not (= main_x main_y)) (<= main_a_x 56)), 30767#(and (not (= main_x main_y)) (<= main_a_x 57)), 30768#(and (not (= main_x main_y)) (<= main_a_x 58)), 30769#(and (not (= main_x main_y)) (<= main_a_x 59)), 30770#(and (<= main_a_x 60) (not (= main_x main_y))), 30771#(and (not (= main_x main_y)) (<= main_a_x 61)), 30772#(and (not (= main_x main_y)) (<= main_a_x 62)), 30773#(and (<= main_a_x 63) (not (= main_x main_y))), 30774#(and (<= main_a_x 64) (not (= main_x main_y))), 30775#(and (<= main_a_x 65) (not (= main_x main_y))), 30776#(and (<= main_a_x 66) (not (= main_x main_y))), 30777#(and (<= main_a_x 67) (not (= main_x main_y))), 30778#(and (not (= main_x main_y)) (<= main_a_x 68)), 30779#(and (<= main_a_x 69) (not (= main_x main_y))), 30780#(and (<= main_a_x 70) (not (= main_x main_y))), 30781#(and (<= main_a_x 71) (not (= main_x main_y))), 30782#(and (not (= main_x main_y)) (<= main_a_x 72)), 30783#(and (not (= main_x main_y)) (<= main_a_x 73)), 30784#(and (<= main_a_x 74) (not (= main_x main_y))), 30785#(and (<= main_a_x 75) (not (= main_x main_y))), 30786#(and (not (= main_x main_y)) (<= main_a_x 76)), 30787#(and (not (= main_x main_y)) (<= main_a_x 77)), 30788#(and (<= main_a_x 78) (not (= main_x main_y))), 30789#(and (<= main_a_x 79) (not (= main_x main_y))), 30790#(and (not (= main_x main_y)) (<= main_a_x 80)), 30791#(and (not (= main_x main_y)) (<= main_a_x 81)), 30792#(and (not (= main_x main_y)) (<= main_a_x 82)), 30793#(and (not (= main_x main_y)) (<= main_a_x 83)), 30794#(and (<= main_a_x 84) (not (= main_x main_y))), 30795#(and (not (= main_x main_y)) (<= main_a_x 85)), 30796#(and (not (= main_x main_y)) (<= main_a_x 86)), 30797#(and (<= main_a_x 87) (not (= main_x main_y))), 30798#(and (not (= main_x main_y)) (<= main_a_x 88)), 30799#(and (<= main_a_x 89) (not (= main_x main_y))), 30800#(and (not (= main_x main_y)) (<= main_a_x 90)), 30801#(and (<= main_a_x 91) (not (= main_x main_y))), 30802#(and (not (= main_x main_y)) (<= main_a_x 92)), 30803#(and (not (= main_x main_y)) (<= main_a_x 93)), 30804#(and (<= main_a_x 94) (not (= main_x main_y))), 30805#(and (<= main_a_x 95) (not (= main_x main_y))), 30806#(and (not (= main_x main_y)) (<= main_a_x 96)), 30807#(and (<= main_a_x 97) (not (= main_x main_y))), 30808#(and (not (= main_x main_y)) (<= main_a_x 98)), 30809#(and (<= main_a_x 99) (not (= main_x main_y))), 30810#(and (<= main_a_x 100) (not (= main_x main_y))), 30811#(and (not (= main_x main_y)) (<= main_a_x 101)), 30812#(and (not (= main_x main_y)) (<= main_a_x 102)), 30813#(and (not (= main_x main_y)) (<= main_a_x 103)), 30814#(and (<= main_a_x 104) (not (= main_x main_y))), 30815#(and (<= main_a_x 105) (not (= main_x main_y))), 30816#(<= main_a_x 106), 30708#true, 30709#false, 30710#(and (not (= main_x main_y)) (<= main_a_x 0)), 30711#(and (not (= main_x main_y)) (<= main_a_x 1)), 30712#(and (not (= main_x main_y)) (<= main_a_x 2)), 30713#(and (not (= main_x main_y)) (<= main_a_x 3)), 30714#(and (<= main_a_x 4) (not (= main_x main_y))), 30715#(and (<= main_a_x 5) (not (= main_x main_y))), 30716#(and (not (= main_x main_y)) (<= main_a_x 6)), 30717#(and (<= main_a_x 7) (not (= main_x main_y))), 30718#(and (not (= main_x main_y)) (<= main_a_x 8)), 30719#(and (not (= main_x main_y)) (<= main_a_x 9))] [2018-07-23 13:52:57,429 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 13:52:57,429 INFO L450 AbstractCegarLoop]: Interpolant automaton has 109 states [2018-07-23 13:52:57,430 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 109 interpolants. [2018-07-23 13:52:57,430 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5886, Invalid=5886, Unknown=0, NotChecked=0, Total=11772 [2018-07-23 13:52:57,431 INFO L87 Difference]: Start difference. First operand 110 states and 110 transitions. Second operand 109 states. [2018-07-23 13:52:57,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:57,635 INFO L93 Difference]: Finished difference Result 113 states and 113 transitions. [2018-07-23 13:52:57,635 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2018-07-23 13:52:57,635 INFO L78 Accepts]: Start accepts. Automaton has 109 states. Word has length 109 [2018-07-23 13:52:57,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:57,636 INFO L225 Difference]: With dead ends: 113 [2018-07-23 13:52:57,636 INFO L226 Difference]: Without dead ends: 111 [2018-07-23 13:52:57,637 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=5886, Invalid=5886, Unknown=0, NotChecked=0, Total=11772 [2018-07-23 13:52:57,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2018-07-23 13:52:57,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2018-07-23 13:52:57,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2018-07-23 13:52:57,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 111 transitions. [2018-07-23 13:52:57,643 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 111 transitions. Word has length 109 [2018-07-23 13:52:57,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:57,643 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 111 transitions. [2018-07-23 13:52:57,643 INFO L472 AbstractCegarLoop]: Interpolant automaton has 109 states. [2018-07-23 13:52:57,643 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 111 transitions. [2018-07-23 13:52:57,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2018-07-23 13:52:57,644 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:57,644 INFO L357 BasicCegarLoop]: trace histogram [107, 1, 1, 1] [2018-07-23 13:52:57,644 INFO L414 AbstractCegarLoop]: === Iteration 108 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:57,644 INFO L82 PathProgramCache]: Analyzing trace with hash 9705735, now seen corresponding path program 107 times [2018-07-23 13:52:57,644 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:57,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:59,102 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 13:52:59,103 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:59,103 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [109] total 109 [2018-07-23 13:52:59,103 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:59,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:59,104 INFO L185 omatonBuilderFactory]: Interpolants [31265#true, 31266#false, 31267#(and (not (= main_x main_y)) (<= main_a_x 0)), 31268#(and (not (= main_x main_y)) (<= main_a_x 1)), 31269#(and (not (= main_x main_y)) (<= main_a_x 2)), 31270#(and (not (= main_x main_y)) (<= main_a_x 3)), 31271#(and (<= main_a_x 4) (not (= main_x main_y))), 31272#(and (<= main_a_x 5) (not (= main_x main_y))), 31273#(and (not (= main_x main_y)) (<= main_a_x 6)), 31274#(and (<= main_a_x 7) (not (= main_x main_y))), 31275#(and (not (= main_x main_y)) (<= main_a_x 8)), 31276#(and (not (= main_x main_y)) (<= main_a_x 9)), 31277#(and (<= main_a_x 10) (not (= main_x main_y))), 31278#(and (not (= main_x main_y)) (<= main_a_x 11)), 31279#(and (not (= main_x main_y)) (<= main_a_x 12)), 31280#(and (<= main_a_x 13) (not (= main_x main_y))), 31281#(and (not (= main_x main_y)) (<= main_a_x 14)), 31282#(and (<= main_a_x 15) (not (= main_x main_y))), 31283#(and (not (= main_x main_y)) (<= main_a_x 16)), 31284#(and (not (= main_x main_y)) (<= main_a_x 17)), 31285#(and (<= main_a_x 18) (not (= main_x main_y))), 31286#(and (<= main_a_x 19) (not (= main_x main_y))), 31287#(and (not (= main_x main_y)) (<= main_a_x 20)), 31288#(and (not (= main_x main_y)) (<= main_a_x 21)), 31289#(and (not (= main_x main_y)) (<= main_a_x 22)), 31290#(and (<= main_a_x 23) (not (= main_x main_y))), 31291#(and (not (= main_x main_y)) (<= main_a_x 24)), 31292#(and (<= main_a_x 25) (not (= main_x main_y))), 31293#(and (not (= main_x main_y)) (<= main_a_x 26)), 31294#(and (not (= main_x main_y)) (<= main_a_x 27)), 31295#(and (not (= main_x main_y)) (<= main_a_x 28)), 31296#(and (not (= main_x main_y)) (<= main_a_x 29)), 31297#(and (<= main_a_x 30) (not (= main_x main_y))), 31298#(and (<= main_a_x 31) (not (= main_x main_y))), 31299#(and (not (= main_x main_y)) (<= main_a_x 32)), 31300#(and (not (= main_x main_y)) (<= main_a_x 33)), 31301#(and (not (= main_x main_y)) (<= main_a_x 34)), 31302#(and (<= main_a_x 35) (not (= main_x main_y))), 31303#(and (not (= main_x main_y)) (<= main_a_x 36)), 31304#(and (<= main_a_x 37) (not (= main_x main_y))), 31305#(and (not (= main_x main_y)) (<= main_a_x 38)), 31306#(and (<= main_a_x 39) (not (= main_x main_y))), 31307#(and (<= main_a_x 40) (not (= main_x main_y))), 31308#(and (not (= main_x main_y)) (<= main_a_x 41)), 31309#(and (not (= main_x main_y)) (<= main_a_x 42)), 31310#(and (<= main_a_x 43) (not (= main_x main_y))), 31311#(and (<= main_a_x 44) (not (= main_x main_y))), 31312#(and (<= main_a_x 45) (not (= main_x main_y))), 31313#(and (<= main_a_x 46) (not (= main_x main_y))), 31314#(and (<= main_a_x 47) (not (= main_x main_y))), 31315#(and (<= main_a_x 48) (not (= main_x main_y))), 31316#(and (not (= main_x main_y)) (<= main_a_x 49)), 31317#(and (not (= main_x main_y)) (<= main_a_x 50)), 31318#(and (<= main_a_x 51) (not (= main_x main_y))), 31319#(and (not (= main_x main_y)) (<= main_a_x 52)), 31320#(and (<= main_a_x 53) (not (= main_x main_y))), 31321#(and (<= main_a_x 54) (not (= main_x main_y))), 31322#(and (not (= main_x main_y)) (<= main_a_x 55)), 31323#(and (not (= main_x main_y)) (<= main_a_x 56)), 31324#(and (not (= main_x main_y)) (<= main_a_x 57)), 31325#(and (not (= main_x main_y)) (<= main_a_x 58)), 31326#(and (not (= main_x main_y)) (<= main_a_x 59)), 31327#(and (<= main_a_x 60) (not (= main_x main_y))), 31328#(and (not (= main_x main_y)) (<= main_a_x 61)), 31329#(and (not (= main_x main_y)) (<= main_a_x 62)), 31330#(and (<= main_a_x 63) (not (= main_x main_y))), 31331#(and (<= main_a_x 64) (not (= main_x main_y))), 31332#(and (<= main_a_x 65) (not (= main_x main_y))), 31333#(and (<= main_a_x 66) (not (= main_x main_y))), 31334#(and (<= main_a_x 67) (not (= main_x main_y))), 31335#(and (not (= main_x main_y)) (<= main_a_x 68)), 31336#(and (<= main_a_x 69) (not (= main_x main_y))), 31337#(and (<= main_a_x 70) (not (= main_x main_y))), 31338#(and (<= main_a_x 71) (not (= main_x main_y))), 31339#(and (not (= main_x main_y)) (<= main_a_x 72)), 31340#(and (not (= main_x main_y)) (<= main_a_x 73)), 31341#(and (<= main_a_x 74) (not (= main_x main_y))), 31342#(and (<= main_a_x 75) (not (= main_x main_y))), 31343#(and (not (= main_x main_y)) (<= main_a_x 76)), 31344#(and (not (= main_x main_y)) (<= main_a_x 77)), 31345#(and (<= main_a_x 78) (not (= main_x main_y))), 31346#(and (<= main_a_x 79) (not (= main_x main_y))), 31347#(and (not (= main_x main_y)) (<= main_a_x 80)), 31348#(and (not (= main_x main_y)) (<= main_a_x 81)), 31349#(and (not (= main_x main_y)) (<= main_a_x 82)), 31350#(and (not (= main_x main_y)) (<= main_a_x 83)), 31351#(and (<= main_a_x 84) (not (= main_x main_y))), 31352#(and (not (= main_x main_y)) (<= main_a_x 85)), 31353#(and (not (= main_x main_y)) (<= main_a_x 86)), 31354#(and (<= main_a_x 87) (not (= main_x main_y))), 31355#(and (not (= main_x main_y)) (<= main_a_x 88)), 31356#(and (<= main_a_x 89) (not (= main_x main_y))), 31357#(and (not (= main_x main_y)) (<= main_a_x 90)), 31358#(and (<= main_a_x 91) (not (= main_x main_y))), 31359#(and (not (= main_x main_y)) (<= main_a_x 92)), 31360#(and (not (= main_x main_y)) (<= main_a_x 93)), 31361#(and (<= main_a_x 94) (not (= main_x main_y))), 31362#(and (<= main_a_x 95) (not (= main_x main_y))), 31363#(and (not (= main_x main_y)) (<= main_a_x 96)), 31364#(and (<= main_a_x 97) (not (= main_x main_y))), 31365#(and (not (= main_x main_y)) (<= main_a_x 98)), 31366#(and (<= main_a_x 99) (not (= main_x main_y))), 31367#(and (<= main_a_x 100) (not (= main_x main_y))), 31368#(and (not (= main_x main_y)) (<= main_a_x 101)), 31369#(and (not (= main_x main_y)) (<= main_a_x 102)), 31370#(and (not (= main_x main_y)) (<= main_a_x 103)), 31371#(and (<= main_a_x 104) (not (= main_x main_y))), 31372#(and (<= main_a_x 105) (not (= main_x main_y))), 31373#(and (not (= main_x main_y)) (<= main_a_x 106)), 31374#(<= main_a_x 107)] [2018-07-23 13:52:59,104 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 13:52:59,104 INFO L450 AbstractCegarLoop]: Interpolant automaton has 110 states [2018-07-23 13:52:59,105 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 110 interpolants. [2018-07-23 13:52:59,106 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5995, Invalid=5995, Unknown=0, NotChecked=0, Total=11990 [2018-07-23 13:52:59,106 INFO L87 Difference]: Start difference. First operand 111 states and 111 transitions. Second operand 110 states. [2018-07-23 13:52:59,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:59,239 INFO L93 Difference]: Finished difference Result 114 states and 114 transitions. [2018-07-23 13:52:59,239 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2018-07-23 13:52:59,239 INFO L78 Accepts]: Start accepts. Automaton has 110 states. Word has length 110 [2018-07-23 13:52:59,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:59,240 INFO L225 Difference]: With dead ends: 114 [2018-07-23 13:52:59,240 INFO L226 Difference]: Without dead ends: 112 [2018-07-23 13:52:59,240 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 13:52:59,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2018-07-23 13:52:59,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2018-07-23 13:52:59,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2018-07-23 13:52:59,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 112 transitions. [2018-07-23 13:52:59,244 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 112 transitions. Word has length 110 [2018-07-23 13:52:59,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:59,244 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 112 transitions. [2018-07-23 13:52:59,244 INFO L472 AbstractCegarLoop]: Interpolant automaton has 110 states. [2018-07-23 13:52:59,244 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 112 transitions. [2018-07-23 13:52:59,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-07-23 13:52:59,244 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:59,244 INFO L357 BasicCegarLoop]: trace histogram [108, 1, 1, 1] [2018-07-23 13:52:59,244 INFO L414 AbstractCegarLoop]: === Iteration 109 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:59,245 INFO L82 PathProgramCache]: Analyzing trace with hash 300893164, now seen corresponding path program 108 times [2018-07-23 13:52:59,245 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:59,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:00,484 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 13:53:00,484 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:00,484 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [110] total 110 [2018-07-23 13:53:00,484 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:00,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:00,485 INFO L185 omatonBuilderFactory]: Interpolants [31827#true, 31828#false, 31829#(and (not (= main_x main_y)) (<= main_a_x 0)), 31830#(and (not (= main_x main_y)) (<= main_a_x 1)), 31831#(and (not (= main_x main_y)) (<= main_a_x 2)), 31832#(and (not (= main_x main_y)) (<= main_a_x 3)), 31833#(and (<= main_a_x 4) (not (= main_x main_y))), 31834#(and (<= main_a_x 5) (not (= main_x main_y))), 31835#(and (not (= main_x main_y)) (<= main_a_x 6)), 31836#(and (<= main_a_x 7) (not (= main_x main_y))), 31837#(and (not (= main_x main_y)) (<= main_a_x 8)), 31838#(and (not (= main_x main_y)) (<= main_a_x 9)), 31839#(and (<= main_a_x 10) (not (= main_x main_y))), 31840#(and (not (= main_x main_y)) (<= main_a_x 11)), 31841#(and (not (= main_x main_y)) (<= main_a_x 12)), 31842#(and (<= main_a_x 13) (not (= main_x main_y))), 31843#(and (not (= main_x main_y)) (<= main_a_x 14)), 31844#(and (<= main_a_x 15) (not (= main_x main_y))), 31845#(and (not (= main_x main_y)) (<= main_a_x 16)), 31846#(and (not (= main_x main_y)) (<= main_a_x 17)), 31847#(and (<= main_a_x 18) (not (= main_x main_y))), 31848#(and (<= main_a_x 19) (not (= main_x main_y))), 31849#(and (not (= main_x main_y)) (<= main_a_x 20)), 31850#(and (not (= main_x main_y)) (<= main_a_x 21)), 31851#(and (not (= main_x main_y)) (<= main_a_x 22)), 31852#(and (<= main_a_x 23) (not (= main_x main_y))), 31853#(and (not (= main_x main_y)) (<= main_a_x 24)), 31854#(and (<= main_a_x 25) (not (= main_x main_y))), 31855#(and (not (= main_x main_y)) (<= main_a_x 26)), 31856#(and (not (= main_x main_y)) (<= main_a_x 27)), 31857#(and (not (= main_x main_y)) (<= main_a_x 28)), 31858#(and (not (= main_x main_y)) (<= main_a_x 29)), 31859#(and (<= main_a_x 30) (not (= main_x main_y))), 31860#(and (<= main_a_x 31) (not (= main_x main_y))), 31861#(and (not (= main_x main_y)) (<= main_a_x 32)), 31862#(and (not (= main_x main_y)) (<= main_a_x 33)), 31863#(and (not (= main_x main_y)) (<= main_a_x 34)), 31864#(and (<= main_a_x 35) (not (= main_x main_y))), 31865#(and (not (= main_x main_y)) (<= main_a_x 36)), 31866#(and (<= main_a_x 37) (not (= main_x main_y))), 31867#(and (not (= main_x main_y)) (<= main_a_x 38)), 31868#(and (<= main_a_x 39) (not (= main_x main_y))), 31869#(and (<= main_a_x 40) (not (= main_x main_y))), 31870#(and (not (= main_x main_y)) (<= main_a_x 41)), 31871#(and (not (= main_x main_y)) (<= main_a_x 42)), 31872#(and (<= main_a_x 43) (not (= main_x main_y))), 31873#(and (<= main_a_x 44) (not (= main_x main_y))), 31874#(and (<= main_a_x 45) (not (= main_x main_y))), 31875#(and (<= main_a_x 46) (not (= main_x main_y))), 31876#(and (<= main_a_x 47) (not (= main_x main_y))), 31877#(and (<= main_a_x 48) (not (= main_x main_y))), 31878#(and (not (= main_x main_y)) (<= main_a_x 49)), 31879#(and (not (= main_x main_y)) (<= main_a_x 50)), 31880#(and (<= main_a_x 51) (not (= main_x main_y))), 31881#(and (not (= main_x main_y)) (<= main_a_x 52)), 31882#(and (<= main_a_x 53) (not (= main_x main_y))), 31883#(and (<= main_a_x 54) (not (= main_x main_y))), 31884#(and (not (= main_x main_y)) (<= main_a_x 55)), 31885#(and (not (= main_x main_y)) (<= main_a_x 56)), 31886#(and (not (= main_x main_y)) (<= main_a_x 57)), 31887#(and (not (= main_x main_y)) (<= main_a_x 58)), 31888#(and (not (= main_x main_y)) (<= main_a_x 59)), 31889#(and (<= main_a_x 60) (not (= main_x main_y))), 31890#(and (not (= main_x main_y)) (<= main_a_x 61)), 31891#(and (not (= main_x main_y)) (<= main_a_x 62)), 31892#(and (<= main_a_x 63) (not (= main_x main_y))), 31893#(and (<= main_a_x 64) (not (= main_x main_y))), 31894#(and (<= main_a_x 65) (not (= main_x main_y))), 31895#(and (<= main_a_x 66) (not (= main_x main_y))), 31896#(and (<= main_a_x 67) (not (= main_x main_y))), 31897#(and (not (= main_x main_y)) (<= main_a_x 68)), 31898#(and (<= main_a_x 69) (not (= main_x main_y))), 31899#(and (<= main_a_x 70) (not (= main_x main_y))), 31900#(and (<= main_a_x 71) (not (= main_x main_y))), 31901#(and (not (= main_x main_y)) (<= main_a_x 72)), 31902#(and (not (= main_x main_y)) (<= main_a_x 73)), 31903#(and (<= main_a_x 74) (not (= main_x main_y))), 31904#(and (<= main_a_x 75) (not (= main_x main_y))), 31905#(and (not (= main_x main_y)) (<= main_a_x 76)), 31906#(and (not (= main_x main_y)) (<= main_a_x 77)), 31907#(and (<= main_a_x 78) (not (= main_x main_y))), 31908#(and (<= main_a_x 79) (not (= main_x main_y))), 31909#(and (not (= main_x main_y)) (<= main_a_x 80)), 31910#(and (not (= main_x main_y)) (<= main_a_x 81)), 31911#(and (not (= main_x main_y)) (<= main_a_x 82)), 31912#(and (not (= main_x main_y)) (<= main_a_x 83)), 31913#(and (<= main_a_x 84) (not (= main_x main_y))), 31914#(and (not (= main_x main_y)) (<= main_a_x 85)), 31915#(and (not (= main_x main_y)) (<= main_a_x 86)), 31916#(and (<= main_a_x 87) (not (= main_x main_y))), 31917#(and (not (= main_x main_y)) (<= main_a_x 88)), 31918#(and (<= main_a_x 89) (not (= main_x main_y))), 31919#(and (not (= main_x main_y)) (<= main_a_x 90)), 31920#(and (<= main_a_x 91) (not (= main_x main_y))), 31921#(and (not (= main_x main_y)) (<= main_a_x 92)), 31922#(and (not (= main_x main_y)) (<= main_a_x 93)), 31923#(and (<= main_a_x 94) (not (= main_x main_y))), 31924#(and (<= main_a_x 95) (not (= main_x main_y))), 31925#(and (not (= main_x main_y)) (<= main_a_x 96)), 31926#(and (<= main_a_x 97) (not (= main_x main_y))), 31927#(and (not (= main_x main_y)) (<= main_a_x 98)), 31928#(and (<= main_a_x 99) (not (= main_x main_y))), 31929#(and (<= main_a_x 100) (not (= main_x main_y))), 31930#(and (not (= main_x main_y)) (<= main_a_x 101)), 31931#(and (not (= main_x main_y)) (<= main_a_x 102)), 31932#(and (not (= main_x main_y)) (<= main_a_x 103)), 31933#(and (<= main_a_x 104) (not (= main_x main_y))), 31934#(and (<= main_a_x 105) (not (= main_x main_y))), 31935#(and (not (= main_x main_y)) (<= main_a_x 106)), 31936#(and (not (= main_x main_y)) (<= main_a_x 107)), 31937#(<= main_a_x 108)] [2018-07-23 13:53:00,485 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 13:53:00,486 INFO L450 AbstractCegarLoop]: Interpolant automaton has 111 states [2018-07-23 13:53:00,486 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 111 interpolants. [2018-07-23 13:53:00,487 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6105, Invalid=6105, Unknown=0, NotChecked=0, Total=12210 [2018-07-23 13:53:00,487 INFO L87 Difference]: Start difference. First operand 112 states and 112 transitions. Second operand 111 states. [2018-07-23 13:53:00,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:00,572 INFO L93 Difference]: Finished difference Result 115 states and 115 transitions. [2018-07-23 13:53:00,572 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2018-07-23 13:53:00,572 INFO L78 Accepts]: Start accepts. Automaton has 111 states. Word has length 111 [2018-07-23 13:53:00,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:00,572 INFO L225 Difference]: With dead ends: 115 [2018-07-23 13:53:00,572 INFO L226 Difference]: Without dead ends: 113 [2018-07-23 13:53:00,573 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=6105, Invalid=6105, Unknown=0, NotChecked=0, Total=12210 [2018-07-23 13:53:00,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2018-07-23 13:53:00,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2018-07-23 13:53:00,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2018-07-23 13:53:00,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 113 transitions. [2018-07-23 13:53:00,576 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 113 transitions. Word has length 111 [2018-07-23 13:53:00,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:00,576 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 113 transitions. [2018-07-23 13:53:00,576 INFO L472 AbstractCegarLoop]: Interpolant automaton has 111 states. [2018-07-23 13:53:00,576 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 113 transitions. [2018-07-23 13:53:00,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2018-07-23 13:53:00,577 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:00,577 INFO L357 BasicCegarLoop]: trace histogram [109, 1, 1, 1] [2018-07-23 13:53:00,577 INFO L414 AbstractCegarLoop]: === Iteration 110 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:00,577 INFO L82 PathProgramCache]: Analyzing trace with hash 737768871, now seen corresponding path program 109 times [2018-07-23 13:53:00,577 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:00,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:01,644 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 13:53:01,644 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:01,644 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [111] total 111 [2018-07-23 13:53:01,644 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:01,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:01,645 INFO L185 omatonBuilderFactory]: Interpolants [32394#true, 32395#false, 32396#(and (not (= main_x main_y)) (<= main_a_x 0)), 32397#(and (not (= main_x main_y)) (<= main_a_x 1)), 32398#(and (not (= main_x main_y)) (<= main_a_x 2)), 32399#(and (not (= main_x main_y)) (<= main_a_x 3)), 32400#(and (<= main_a_x 4) (not (= main_x main_y))), 32401#(and (<= main_a_x 5) (not (= main_x main_y))), 32402#(and (not (= main_x main_y)) (<= main_a_x 6)), 32403#(and (<= main_a_x 7) (not (= main_x main_y))), 32404#(and (not (= main_x main_y)) (<= main_a_x 8)), 32405#(and (not (= main_x main_y)) (<= main_a_x 9)), 32406#(and (<= main_a_x 10) (not (= main_x main_y))), 32407#(and (not (= main_x main_y)) (<= main_a_x 11)), 32408#(and (not (= main_x main_y)) (<= main_a_x 12)), 32409#(and (<= main_a_x 13) (not (= main_x main_y))), 32410#(and (not (= main_x main_y)) (<= main_a_x 14)), 32411#(and (<= main_a_x 15) (not (= main_x main_y))), 32412#(and (not (= main_x main_y)) (<= main_a_x 16)), 32413#(and (not (= main_x main_y)) (<= main_a_x 17)), 32414#(and (<= main_a_x 18) (not (= main_x main_y))), 32415#(and (<= main_a_x 19) (not (= main_x main_y))), 32416#(and (not (= main_x main_y)) (<= main_a_x 20)), 32417#(and (not (= main_x main_y)) (<= main_a_x 21)), 32418#(and (not (= main_x main_y)) (<= main_a_x 22)), 32419#(and (<= main_a_x 23) (not (= main_x main_y))), 32420#(and (not (= main_x main_y)) (<= main_a_x 24)), 32421#(and (<= main_a_x 25) (not (= main_x main_y))), 32422#(and (not (= main_x main_y)) (<= main_a_x 26)), 32423#(and (not (= main_x main_y)) (<= main_a_x 27)), 32424#(and (not (= main_x main_y)) (<= main_a_x 28)), 32425#(and (not (= main_x main_y)) (<= main_a_x 29)), 32426#(and (<= main_a_x 30) (not (= main_x main_y))), 32427#(and (<= main_a_x 31) (not (= main_x main_y))), 32428#(and (not (= main_x main_y)) (<= main_a_x 32)), 32429#(and (not (= main_x main_y)) (<= main_a_x 33)), 32430#(and (not (= main_x main_y)) (<= main_a_x 34)), 32431#(and (<= main_a_x 35) (not (= main_x main_y))), 32432#(and (not (= main_x main_y)) (<= main_a_x 36)), 32433#(and (<= main_a_x 37) (not (= main_x main_y))), 32434#(and (not (= main_x main_y)) (<= main_a_x 38)), 32435#(and (<= main_a_x 39) (not (= main_x main_y))), 32436#(and (<= main_a_x 40) (not (= main_x main_y))), 32437#(and (not (= main_x main_y)) (<= main_a_x 41)), 32438#(and (not (= main_x main_y)) (<= main_a_x 42)), 32439#(and (<= main_a_x 43) (not (= main_x main_y))), 32440#(and (<= main_a_x 44) (not (= main_x main_y))), 32441#(and (<= main_a_x 45) (not (= main_x main_y))), 32442#(and (<= main_a_x 46) (not (= main_x main_y))), 32443#(and (<= main_a_x 47) (not (= main_x main_y))), 32444#(and (<= main_a_x 48) (not (= main_x main_y))), 32445#(and (not (= main_x main_y)) (<= main_a_x 49)), 32446#(and (not (= main_x main_y)) (<= main_a_x 50)), 32447#(and (<= main_a_x 51) (not (= main_x main_y))), 32448#(and (not (= main_x main_y)) (<= main_a_x 52)), 32449#(and (<= main_a_x 53) (not (= main_x main_y))), 32450#(and (<= main_a_x 54) (not (= main_x main_y))), 32451#(and (not (= main_x main_y)) (<= main_a_x 55)), 32452#(and (not (= main_x main_y)) (<= main_a_x 56)), 32453#(and (not (= main_x main_y)) (<= main_a_x 57)), 32454#(and (not (= main_x main_y)) (<= main_a_x 58)), 32455#(and (not (= main_x main_y)) (<= main_a_x 59)), 32456#(and (<= main_a_x 60) (not (= main_x main_y))), 32457#(and (not (= main_x main_y)) (<= main_a_x 61)), 32458#(and (not (= main_x main_y)) (<= main_a_x 62)), 32459#(and (<= main_a_x 63) (not (= main_x main_y))), 32460#(and (<= main_a_x 64) (not (= main_x main_y))), 32461#(and (<= main_a_x 65) (not (= main_x main_y))), 32462#(and (<= main_a_x 66) (not (= main_x main_y))), 32463#(and (<= main_a_x 67) (not (= main_x main_y))), 32464#(and (not (= main_x main_y)) (<= main_a_x 68)), 32465#(and (<= main_a_x 69) (not (= main_x main_y))), 32466#(and (<= main_a_x 70) (not (= main_x main_y))), 32467#(and (<= main_a_x 71) (not (= main_x main_y))), 32468#(and (not (= main_x main_y)) (<= main_a_x 72)), 32469#(and (not (= main_x main_y)) (<= main_a_x 73)), 32470#(and (<= main_a_x 74) (not (= main_x main_y))), 32471#(and (<= main_a_x 75) (not (= main_x main_y))), 32472#(and (not (= main_x main_y)) (<= main_a_x 76)), 32473#(and (not (= main_x main_y)) (<= main_a_x 77)), 32474#(and (<= main_a_x 78) (not (= main_x main_y))), 32475#(and (<= main_a_x 79) (not (= main_x main_y))), 32476#(and (not (= main_x main_y)) (<= main_a_x 80)), 32477#(and (not (= main_x main_y)) (<= main_a_x 81)), 32478#(and (not (= main_x main_y)) (<= main_a_x 82)), 32479#(and (not (= main_x main_y)) (<= main_a_x 83)), 32480#(and (<= main_a_x 84) (not (= main_x main_y))), 32481#(and (not (= main_x main_y)) (<= main_a_x 85)), 32482#(and (not (= main_x main_y)) (<= main_a_x 86)), 32483#(and (<= main_a_x 87) (not (= main_x main_y))), 32484#(and (not (= main_x main_y)) (<= main_a_x 88)), 32485#(and (<= main_a_x 89) (not (= main_x main_y))), 32486#(and (not (= main_x main_y)) (<= main_a_x 90)), 32487#(and (<= main_a_x 91) (not (= main_x main_y))), 32488#(and (not (= main_x main_y)) (<= main_a_x 92)), 32489#(and (not (= main_x main_y)) (<= main_a_x 93)), 32490#(and (<= main_a_x 94) (not (= main_x main_y))), 32491#(and (<= main_a_x 95) (not (= main_x main_y))), 32492#(and (not (= main_x main_y)) (<= main_a_x 96)), 32493#(and (<= main_a_x 97) (not (= main_x main_y))), 32494#(and (not (= main_x main_y)) (<= main_a_x 98)), 32495#(and (<= main_a_x 99) (not (= main_x main_y))), 32496#(and (<= main_a_x 100) (not (= main_x main_y))), 32497#(and (not (= main_x main_y)) (<= main_a_x 101)), 32498#(and (not (= main_x main_y)) (<= main_a_x 102)), 32499#(and (not (= main_x main_y)) (<= main_a_x 103)), 32500#(and (<= main_a_x 104) (not (= main_x main_y))), 32501#(and (<= main_a_x 105) (not (= main_x main_y))), 32502#(and (not (= main_x main_y)) (<= main_a_x 106)), 32503#(and (not (= main_x main_y)) (<= main_a_x 107)), 32504#(and (not (= main_x main_y)) (<= main_a_x 108)), 32505#(<= main_a_x 109)] [2018-07-23 13:53:01,645 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 13:53:01,645 INFO L450 AbstractCegarLoop]: Interpolant automaton has 112 states [2018-07-23 13:53:01,646 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 112 interpolants. [2018-07-23 13:53:01,647 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6216, Invalid=6216, Unknown=0, NotChecked=0, Total=12432 [2018-07-23 13:53:01,647 INFO L87 Difference]: Start difference. First operand 113 states and 113 transitions. Second operand 112 states. [2018-07-23 13:53:01,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:01,770 INFO L93 Difference]: Finished difference Result 116 states and 116 transitions. [2018-07-23 13:53:01,770 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2018-07-23 13:53:01,770 INFO L78 Accepts]: Start accepts. Automaton has 112 states. Word has length 112 [2018-07-23 13:53:01,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:01,771 INFO L225 Difference]: With dead ends: 116 [2018-07-23 13:53:01,771 INFO L226 Difference]: Without dead ends: 114 [2018-07-23 13:53:01,772 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=6216, Invalid=6216, Unknown=0, NotChecked=0, Total=12432 [2018-07-23 13:53:01,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2018-07-23 13:53:01,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2018-07-23 13:53:01,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2018-07-23 13:53:01,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 114 transitions. [2018-07-23 13:53:01,777 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 114 transitions. Word has length 112 [2018-07-23 13:53:01,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:01,777 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 114 transitions. [2018-07-23 13:53:01,777 INFO L472 AbstractCegarLoop]: Interpolant automaton has 112 states. [2018-07-23 13:53:01,777 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 114 transitions. [2018-07-23 13:53:01,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2018-07-23 13:53:01,778 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:01,778 INFO L357 BasicCegarLoop]: trace histogram [110, 1, 1, 1] [2018-07-23 13:53:01,778 INFO L414 AbstractCegarLoop]: === Iteration 111 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:01,778 INFO L82 PathProgramCache]: Analyzing trace with hash 1396013900, now seen corresponding path program 110 times [2018-07-23 13:53:01,778 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:01,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:02,977 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 13:53:02,978 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:02,978 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [112] total 112 [2018-07-23 13:53:02,978 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:02,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:02,978 INFO L185 omatonBuilderFactory]: Interpolants [33024#(and (not (= main_x main_y)) (<= main_a_x 56)), 33025#(and (not (= main_x main_y)) (<= main_a_x 57)), 33026#(and (not (= main_x main_y)) (<= main_a_x 58)), 33027#(and (not (= main_x main_y)) (<= main_a_x 59)), 33028#(and (<= main_a_x 60) (not (= main_x main_y))), 33029#(and (not (= main_x main_y)) (<= main_a_x 61)), 33030#(and (not (= main_x main_y)) (<= main_a_x 62)), 33031#(and (<= main_a_x 63) (not (= main_x main_y))), 33032#(and (<= main_a_x 64) (not (= main_x main_y))), 33033#(and (<= main_a_x 65) (not (= main_x main_y))), 33034#(and (<= main_a_x 66) (not (= main_x main_y))), 33035#(and (<= main_a_x 67) (not (= main_x main_y))), 33036#(and (not (= main_x main_y)) (<= main_a_x 68)), 33037#(and (<= main_a_x 69) (not (= main_x main_y))), 33038#(and (<= main_a_x 70) (not (= main_x main_y))), 33039#(and (<= main_a_x 71) (not (= main_x main_y))), 33040#(and (not (= main_x main_y)) (<= main_a_x 72)), 33041#(and (not (= main_x main_y)) (<= main_a_x 73)), 33042#(and (<= main_a_x 74) (not (= main_x main_y))), 33043#(and (<= main_a_x 75) (not (= main_x main_y))), 33044#(and (not (= main_x main_y)) (<= main_a_x 76)), 33045#(and (not (= main_x main_y)) (<= main_a_x 77)), 33046#(and (<= main_a_x 78) (not (= main_x main_y))), 33047#(and (<= main_a_x 79) (not (= main_x main_y))), 33048#(and (not (= main_x main_y)) (<= main_a_x 80)), 33049#(and (not (= main_x main_y)) (<= main_a_x 81)), 33050#(and (not (= main_x main_y)) (<= main_a_x 82)), 33051#(and (not (= main_x main_y)) (<= main_a_x 83)), 33052#(and (<= main_a_x 84) (not (= main_x main_y))), 33053#(and (not (= main_x main_y)) (<= main_a_x 85)), 33054#(and (not (= main_x main_y)) (<= main_a_x 86)), 33055#(and (<= main_a_x 87) (not (= main_x main_y))), 33056#(and (not (= main_x main_y)) (<= main_a_x 88)), 33057#(and (<= main_a_x 89) (not (= main_x main_y))), 33058#(and (not (= main_x main_y)) (<= main_a_x 90)), 33059#(and (<= main_a_x 91) (not (= main_x main_y))), 33060#(and (not (= main_x main_y)) (<= main_a_x 92)), 33061#(and (not (= main_x main_y)) (<= main_a_x 93)), 33062#(and (<= main_a_x 94) (not (= main_x main_y))), 33063#(and (<= main_a_x 95) (not (= main_x main_y))), 33064#(and (not (= main_x main_y)) (<= main_a_x 96)), 33065#(and (<= main_a_x 97) (not (= main_x main_y))), 33066#(and (not (= main_x main_y)) (<= main_a_x 98)), 33067#(and (<= main_a_x 99) (not (= main_x main_y))), 33068#(and (<= main_a_x 100) (not (= main_x main_y))), 33069#(and (not (= main_x main_y)) (<= main_a_x 101)), 33070#(and (not (= main_x main_y)) (<= main_a_x 102)), 33071#(and (not (= main_x main_y)) (<= main_a_x 103)), 33072#(and (<= main_a_x 104) (not (= main_x main_y))), 33073#(and (<= main_a_x 105) (not (= main_x main_y))), 33074#(and (not (= main_x main_y)) (<= main_a_x 106)), 33075#(and (not (= main_x main_y)) (<= main_a_x 107)), 33076#(and (not (= main_x main_y)) (<= main_a_x 108)), 33077#(and (not (= main_x main_y)) (<= main_a_x 109)), 33078#(<= main_a_x 110), 32966#true, 32967#false, 32968#(and (not (= main_x main_y)) (<= main_a_x 0)), 32969#(and (not (= main_x main_y)) (<= main_a_x 1)), 32970#(and (not (= main_x main_y)) (<= main_a_x 2)), 32971#(and (not (= main_x main_y)) (<= main_a_x 3)), 32972#(and (<= main_a_x 4) (not (= main_x main_y))), 32973#(and (<= main_a_x 5) (not (= main_x main_y))), 32974#(and (not (= main_x main_y)) (<= main_a_x 6)), 32975#(and (<= main_a_x 7) (not (= main_x main_y))), 32976#(and (not (= main_x main_y)) (<= main_a_x 8)), 32977#(and (not (= main_x main_y)) (<= main_a_x 9)), 32978#(and (<= main_a_x 10) (not (= main_x main_y))), 32979#(and (not (= main_x main_y)) (<= main_a_x 11)), 32980#(and (not (= main_x main_y)) (<= main_a_x 12)), 32981#(and (<= main_a_x 13) (not (= main_x main_y))), 32982#(and (not (= main_x main_y)) (<= main_a_x 14)), 32983#(and (<= main_a_x 15) (not (= main_x main_y))), 32984#(and (not (= main_x main_y)) (<= main_a_x 16)), 32985#(and (not (= main_x main_y)) (<= main_a_x 17)), 32986#(and (<= main_a_x 18) (not (= main_x main_y))), 32987#(and (<= main_a_x 19) (not (= main_x main_y))), 32988#(and (not (= main_x main_y)) (<= main_a_x 20)), 32989#(and (not (= main_x main_y)) (<= main_a_x 21)), 32990#(and (not (= main_x main_y)) (<= main_a_x 22)), 32991#(and (<= main_a_x 23) (not (= main_x main_y))), 32992#(and (not (= main_x main_y)) (<= main_a_x 24)), 32993#(and (<= main_a_x 25) (not (= main_x main_y))), 32994#(and (not (= main_x main_y)) (<= main_a_x 26)), 32995#(and (not (= main_x main_y)) (<= main_a_x 27)), 32996#(and (not (= main_x main_y)) (<= main_a_x 28)), 32997#(and (not (= main_x main_y)) (<= main_a_x 29)), 32998#(and (<= main_a_x 30) (not (= main_x main_y))), 32999#(and (<= main_a_x 31) (not (= main_x main_y))), 33000#(and (not (= main_x main_y)) (<= main_a_x 32)), 33001#(and (not (= main_x main_y)) (<= main_a_x 33)), 33002#(and (not (= main_x main_y)) (<= main_a_x 34)), 33003#(and (<= main_a_x 35) (not (= main_x main_y))), 33004#(and (not (= main_x main_y)) (<= main_a_x 36)), 33005#(and (<= main_a_x 37) (not (= main_x main_y))), 33006#(and (not (= main_x main_y)) (<= main_a_x 38)), 33007#(and (<= main_a_x 39) (not (= main_x main_y))), 33008#(and (<= main_a_x 40) (not (= main_x main_y))), 33009#(and (not (= main_x main_y)) (<= main_a_x 41)), 33010#(and (not (= main_x main_y)) (<= main_a_x 42)), 33011#(and (<= main_a_x 43) (not (= main_x main_y))), 33012#(and (<= main_a_x 44) (not (= main_x main_y))), 33013#(and (<= main_a_x 45) (not (= main_x main_y))), 33014#(and (<= main_a_x 46) (not (= main_x main_y))), 33015#(and (<= main_a_x 47) (not (= main_x main_y))), 33016#(and (<= main_a_x 48) (not (= main_x main_y))), 33017#(and (not (= main_x main_y)) (<= main_a_x 49)), 33018#(and (not (= main_x main_y)) (<= main_a_x 50)), 33019#(and (<= main_a_x 51) (not (= main_x main_y))), 33020#(and (not (= main_x main_y)) (<= main_a_x 52)), 33021#(and (<= main_a_x 53) (not (= main_x main_y))), 33022#(and (<= main_a_x 54) (not (= main_x main_y))), 33023#(and (not (= main_x main_y)) (<= main_a_x 55))] [2018-07-23 13:53:02,979 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 13:53:02,979 INFO L450 AbstractCegarLoop]: Interpolant automaton has 113 states [2018-07-23 13:53:02,980 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 113 interpolants. [2018-07-23 13:53:02,980 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6328, Invalid=6328, Unknown=0, NotChecked=0, Total=12656 [2018-07-23 13:53:02,980 INFO L87 Difference]: Start difference. First operand 114 states and 114 transitions. Second operand 113 states. [2018-07-23 13:53:03,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:03,042 INFO L93 Difference]: Finished difference Result 117 states and 117 transitions. [2018-07-23 13:53:03,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2018-07-23 13:53:03,042 INFO L78 Accepts]: Start accepts. Automaton has 113 states. Word has length 113 [2018-07-23 13:53:03,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:03,042 INFO L225 Difference]: With dead ends: 117 [2018-07-23 13:53:03,042 INFO L226 Difference]: Without dead ends: 115 [2018-07-23 13:53:03,043 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=6328, Invalid=6328, Unknown=0, NotChecked=0, Total=12656 [2018-07-23 13:53:03,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2018-07-23 13:53:03,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2018-07-23 13:53:03,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2018-07-23 13:53:03,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 115 transitions. [2018-07-23 13:53:03,049 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 115 transitions. Word has length 113 [2018-07-23 13:53:03,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:03,049 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 115 transitions. [2018-07-23 13:53:03,049 INFO L472 AbstractCegarLoop]: Interpolant automaton has 113 states. [2018-07-23 13:53:03,050 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 115 transitions. [2018-07-23 13:53:03,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2018-07-23 13:53:03,050 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:03,050 INFO L357 BasicCegarLoop]: trace histogram [111, 1, 1, 1] [2018-07-23 13:53:03,050 INFO L414 AbstractCegarLoop]: === Iteration 112 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:03,051 INFO L82 PathProgramCache]: Analyzing trace with hash 326773319, now seen corresponding path program 111 times [2018-07-23 13:53:03,051 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:03,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:04,286 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 13:53:04,287 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:04,287 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [113] total 113 [2018-07-23 13:53:04,287 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:04,287 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 13:53:04,287 INFO L185 omatonBuilderFactory]: Interpolants [33543#true, 33544#false, 33545#(and (not (= main_x main_y)) (<= main_a_x 0)), 33546#(and (not (= main_x main_y)) (<= main_a_x 1)), 33547#(and (not (= main_x main_y)) (<= main_a_x 2)), 33548#(and (not (= main_x main_y)) (<= main_a_x 3)), 33549#(and (<= main_a_x 4) (not (= main_x main_y))), 33550#(and (<= main_a_x 5) (not (= main_x main_y))), 33551#(and (not (= main_x main_y)) (<= main_a_x 6)), 33552#(and (<= main_a_x 7) (not (= main_x main_y))), 33553#(and (not (= main_x main_y)) (<= main_a_x 8)), 33554#(and (not (= main_x main_y)) (<= main_a_x 9)), 33555#(and (<= main_a_x 10) (not (= main_x main_y))), 33556#(and (not (= main_x main_y)) (<= main_a_x 11)), 33557#(and (not (= main_x main_y)) (<= main_a_x 12)), 33558#(and (<= main_a_x 13) (not (= main_x main_y))), 33559#(and (not (= main_x main_y)) (<= main_a_x 14)), 33560#(and (<= main_a_x 15) (not (= main_x main_y))), 33561#(and (not (= main_x main_y)) (<= main_a_x 16)), 33562#(and (not (= main_x main_y)) (<= main_a_x 17)), 33563#(and (<= main_a_x 18) (not (= main_x main_y))), 33564#(and (<= main_a_x 19) (not (= main_x main_y))), 33565#(and (not (= main_x main_y)) (<= main_a_x 20)), 33566#(and (not (= main_x main_y)) (<= main_a_x 21)), 33567#(and (not (= main_x main_y)) (<= main_a_x 22)), 33568#(and (<= main_a_x 23) (not (= main_x main_y))), 33569#(and (not (= main_x main_y)) (<= main_a_x 24)), 33570#(and (<= main_a_x 25) (not (= main_x main_y))), 33571#(and (not (= main_x main_y)) (<= main_a_x 26)), 33572#(and (not (= main_x main_y)) (<= main_a_x 27)), 33573#(and (not (= main_x main_y)) (<= main_a_x 28)), 33574#(and (not (= main_x main_y)) (<= main_a_x 29)), 33575#(and (<= main_a_x 30) (not (= main_x main_y))), 33576#(and (<= main_a_x 31) (not (= main_x main_y))), 33577#(and (not (= main_x main_y)) (<= main_a_x 32)), 33578#(and (not (= main_x main_y)) (<= main_a_x 33)), 33579#(and (not (= main_x main_y)) (<= main_a_x 34)), 33580#(and (<= main_a_x 35) (not (= main_x main_y))), 33581#(and (not (= main_x main_y)) (<= main_a_x 36)), 33582#(and (<= main_a_x 37) (not (= main_x main_y))), 33583#(and (not (= main_x main_y)) (<= main_a_x 38)), 33584#(and (<= main_a_x 39) (not (= main_x main_y))), 33585#(and (<= main_a_x 40) (not (= main_x main_y))), 33586#(and (not (= main_x main_y)) (<= main_a_x 41)), 33587#(and (not (= main_x main_y)) (<= main_a_x 42)), 33588#(and (<= main_a_x 43) (not (= main_x main_y))), 33589#(and (<= main_a_x 44) (not (= main_x main_y))), 33590#(and (<= main_a_x 45) (not (= main_x main_y))), 33591#(and (<= main_a_x 46) (not (= main_x main_y))), 33592#(and (<= main_a_x 47) (not (= main_x main_y))), 33593#(and (<= main_a_x 48) (not (= main_x main_y))), 33594#(and (not (= main_x main_y)) (<= main_a_x 49)), 33595#(and (not (= main_x main_y)) (<= main_a_x 50)), 33596#(and (<= main_a_x 51) (not (= main_x main_y))), 33597#(and (not (= main_x main_y)) (<= main_a_x 52)), 33598#(and (<= main_a_x 53) (not (= main_x main_y))), 33599#(and (<= main_a_x 54) (not (= main_x main_y))), 33600#(and (not (= main_x main_y)) (<= main_a_x 55)), 33601#(and (not (= main_x main_y)) (<= main_a_x 56)), 33602#(and (not (= main_x main_y)) (<= main_a_x 57)), 33603#(and (not (= main_x main_y)) (<= main_a_x 58)), 33604#(and (not (= main_x main_y)) (<= main_a_x 59)), 33605#(and (<= main_a_x 60) (not (= main_x main_y))), 33606#(and (not (= main_x main_y)) (<= main_a_x 61)), 33607#(and (not (= main_x main_y)) (<= main_a_x 62)), 33608#(and (<= main_a_x 63) (not (= main_x main_y))), 33609#(and (<= main_a_x 64) (not (= main_x main_y))), 33610#(and (<= main_a_x 65) (not (= main_x main_y))), 33611#(and (<= main_a_x 66) (not (= main_x main_y))), 33612#(and (<= main_a_x 67) (not (= main_x main_y))), 33613#(and (not (= main_x main_y)) (<= main_a_x 68)), 33614#(and (<= main_a_x 69) (not (= main_x main_y))), 33615#(and (<= main_a_x 70) (not (= main_x main_y))), 33616#(and (<= main_a_x 71) (not (= main_x main_y))), 33617#(and (not (= main_x main_y)) (<= main_a_x 72)), 33618#(and (not (= main_x main_y)) (<= main_a_x 73)), 33619#(and (<= main_a_x 74) (not (= main_x main_y))), 33620#(and (<= main_a_x 75) (not (= main_x main_y))), 33621#(and (not (= main_x main_y)) (<= main_a_x 76)), 33622#(and (not (= main_x main_y)) (<= main_a_x 77)), 33623#(and (<= main_a_x 78) (not (= main_x main_y))), 33624#(and (<= main_a_x 79) (not (= main_x main_y))), 33625#(and (not (= main_x main_y)) (<= main_a_x 80)), 33626#(and (not (= main_x main_y)) (<= main_a_x 81)), 33627#(and (not (= main_x main_y)) (<= main_a_x 82)), 33628#(and (not (= main_x main_y)) (<= main_a_x 83)), 33629#(and (<= main_a_x 84) (not (= main_x main_y))), 33630#(and (not (= main_x main_y)) (<= main_a_x 85)), 33631#(and (not (= main_x main_y)) (<= main_a_x 86)), 33632#(and (<= main_a_x 87) (not (= main_x main_y))), 33633#(and (not (= main_x main_y)) (<= main_a_x 88)), 33634#(and (<= main_a_x 89) (not (= main_x main_y))), 33635#(and (not (= main_x main_y)) (<= main_a_x 90)), 33636#(and (<= main_a_x 91) (not (= main_x main_y))), 33637#(and (not (= main_x main_y)) (<= main_a_x 92)), 33638#(and (not (= main_x main_y)) (<= main_a_x 93)), 33639#(and (<= main_a_x 94) (not (= main_x main_y))), 33640#(and (<= main_a_x 95) (not (= main_x main_y))), 33641#(and (not (= main_x main_y)) (<= main_a_x 96)), 33642#(and (<= main_a_x 97) (not (= main_x main_y))), 33643#(and (not (= main_x main_y)) (<= main_a_x 98)), 33644#(and (<= main_a_x 99) (not (= main_x main_y))), 33645#(and (<= main_a_x 100) (not (= main_x main_y))), 33646#(and (not (= main_x main_y)) (<= main_a_x 101)), 33647#(and (not (= main_x main_y)) (<= main_a_x 102)), 33648#(and (not (= main_x main_y)) (<= main_a_x 103)), 33649#(and (<= main_a_x 104) (not (= main_x main_y))), 33650#(and (<= main_a_x 105) (not (= main_x main_y))), 33651#(and (not (= main_x main_y)) (<= main_a_x 106)), 33652#(and (not (= main_x main_y)) (<= main_a_x 107)), 33653#(and (not (= main_x main_y)) (<= main_a_x 108)), 33654#(and (not (= main_x main_y)) (<= main_a_x 109)), 33655#(and (<= main_a_x 110) (not (= main_x main_y))), 33656#(<= main_a_x 111)] [2018-07-23 13:53:04,288 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 13:53:04,288 INFO L450 AbstractCegarLoop]: Interpolant automaton has 114 states [2018-07-23 13:53:04,289 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 114 interpolants. [2018-07-23 13:53:04,289 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6441, Invalid=6441, Unknown=0, NotChecked=0, Total=12882 [2018-07-23 13:53:04,289 INFO L87 Difference]: Start difference. First operand 115 states and 115 transitions. Second operand 114 states. [2018-07-23 13:53:04,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:04,465 INFO L93 Difference]: Finished difference Result 118 states and 118 transitions. [2018-07-23 13:53:04,465 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2018-07-23 13:53:04,465 INFO L78 Accepts]: Start accepts. Automaton has 114 states. Word has length 114 [2018-07-23 13:53:04,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:04,465 INFO L225 Difference]: With dead ends: 118 [2018-07-23 13:53:04,465 INFO L226 Difference]: Without dead ends: 116 [2018-07-23 13:53:04,466 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=6441, Invalid=6441, Unknown=0, NotChecked=0, Total=12882 [2018-07-23 13:53:04,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2018-07-23 13:53:04,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2018-07-23 13:53:04,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2018-07-23 13:53:04,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 116 transitions. [2018-07-23 13:53:04,469 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 116 transitions. Word has length 114 [2018-07-23 13:53:04,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:04,469 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 116 transitions. [2018-07-23 13:53:04,470 INFO L472 AbstractCegarLoop]: Interpolant automaton has 114 states. [2018-07-23 13:53:04,470 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 116 transitions. [2018-07-23 13:53:04,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-07-23 13:53:04,470 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:04,470 INFO L357 BasicCegarLoop]: trace histogram [112, 1, 1, 1] [2018-07-23 13:53:04,470 INFO L414 AbstractCegarLoop]: === Iteration 113 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:04,470 INFO L82 PathProgramCache]: Analyzing trace with hash 1540053676, now seen corresponding path program 112 times [2018-07-23 13:53:04,471 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:04,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:05,685 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 13:53:05,686 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:05,686 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [114] total 114 [2018-07-23 13:53:05,686 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:05,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:05,687 INFO L185 omatonBuilderFactory]: Interpolants [34125#true, 34126#false, 34127#(and (not (= main_x main_y)) (<= main_a_x 0)), 34128#(and (not (= main_x main_y)) (<= main_a_x 1)), 34129#(and (not (= main_x main_y)) (<= main_a_x 2)), 34130#(and (not (= main_x main_y)) (<= main_a_x 3)), 34131#(and (<= main_a_x 4) (not (= main_x main_y))), 34132#(and (<= main_a_x 5) (not (= main_x main_y))), 34133#(and (not (= main_x main_y)) (<= main_a_x 6)), 34134#(and (<= main_a_x 7) (not (= main_x main_y))), 34135#(and (not (= main_x main_y)) (<= main_a_x 8)), 34136#(and (not (= main_x main_y)) (<= main_a_x 9)), 34137#(and (<= main_a_x 10) (not (= main_x main_y))), 34138#(and (not (= main_x main_y)) (<= main_a_x 11)), 34139#(and (not (= main_x main_y)) (<= main_a_x 12)), 34140#(and (<= main_a_x 13) (not (= main_x main_y))), 34141#(and (not (= main_x main_y)) (<= main_a_x 14)), 34142#(and (<= main_a_x 15) (not (= main_x main_y))), 34143#(and (not (= main_x main_y)) (<= main_a_x 16)), 34144#(and (not (= main_x main_y)) (<= main_a_x 17)), 34145#(and (<= main_a_x 18) (not (= main_x main_y))), 34146#(and (<= main_a_x 19) (not (= main_x main_y))), 34147#(and (not (= main_x main_y)) (<= main_a_x 20)), 34148#(and (not (= main_x main_y)) (<= main_a_x 21)), 34149#(and (not (= main_x main_y)) (<= main_a_x 22)), 34150#(and (<= main_a_x 23) (not (= main_x main_y))), 34151#(and (not (= main_x main_y)) (<= main_a_x 24)), 34152#(and (<= main_a_x 25) (not (= main_x main_y))), 34153#(and (not (= main_x main_y)) (<= main_a_x 26)), 34154#(and (not (= main_x main_y)) (<= main_a_x 27)), 34155#(and (not (= main_x main_y)) (<= main_a_x 28)), 34156#(and (not (= main_x main_y)) (<= main_a_x 29)), 34157#(and (<= main_a_x 30) (not (= main_x main_y))), 34158#(and (<= main_a_x 31) (not (= main_x main_y))), 34159#(and (not (= main_x main_y)) (<= main_a_x 32)), 34160#(and (not (= main_x main_y)) (<= main_a_x 33)), 34161#(and (not (= main_x main_y)) (<= main_a_x 34)), 34162#(and (<= main_a_x 35) (not (= main_x main_y))), 34163#(and (not (= main_x main_y)) (<= main_a_x 36)), 34164#(and (<= main_a_x 37) (not (= main_x main_y))), 34165#(and (not (= main_x main_y)) (<= main_a_x 38)), 34166#(and (<= main_a_x 39) (not (= main_x main_y))), 34167#(and (<= main_a_x 40) (not (= main_x main_y))), 34168#(and (not (= main_x main_y)) (<= main_a_x 41)), 34169#(and (not (= main_x main_y)) (<= main_a_x 42)), 34170#(and (<= main_a_x 43) (not (= main_x main_y))), 34171#(and (<= main_a_x 44) (not (= main_x main_y))), 34172#(and (<= main_a_x 45) (not (= main_x main_y))), 34173#(and (<= main_a_x 46) (not (= main_x main_y))), 34174#(and (<= main_a_x 47) (not (= main_x main_y))), 34175#(and (<= main_a_x 48) (not (= main_x main_y))), 34176#(and (not (= main_x main_y)) (<= main_a_x 49)), 34177#(and (not (= main_x main_y)) (<= main_a_x 50)), 34178#(and (<= main_a_x 51) (not (= main_x main_y))), 34179#(and (not (= main_x main_y)) (<= main_a_x 52)), 34180#(and (<= main_a_x 53) (not (= main_x main_y))), 34181#(and (<= main_a_x 54) (not (= main_x main_y))), 34182#(and (not (= main_x main_y)) (<= main_a_x 55)), 34183#(and (not (= main_x main_y)) (<= main_a_x 56)), 34184#(and (not (= main_x main_y)) (<= main_a_x 57)), 34185#(and (not (= main_x main_y)) (<= main_a_x 58)), 34186#(and (not (= main_x main_y)) (<= main_a_x 59)), 34187#(and (<= main_a_x 60) (not (= main_x main_y))), 34188#(and (not (= main_x main_y)) (<= main_a_x 61)), 34189#(and (not (= main_x main_y)) (<= main_a_x 62)), 34190#(and (<= main_a_x 63) (not (= main_x main_y))), 34191#(and (<= main_a_x 64) (not (= main_x main_y))), 34192#(and (<= main_a_x 65) (not (= main_x main_y))), 34193#(and (<= main_a_x 66) (not (= main_x main_y))), 34194#(and (<= main_a_x 67) (not (= main_x main_y))), 34195#(and (not (= main_x main_y)) (<= main_a_x 68)), 34196#(and (<= main_a_x 69) (not (= main_x main_y))), 34197#(and (<= main_a_x 70) (not (= main_x main_y))), 34198#(and (<= main_a_x 71) (not (= main_x main_y))), 34199#(and (not (= main_x main_y)) (<= main_a_x 72)), 34200#(and (not (= main_x main_y)) (<= main_a_x 73)), 34201#(and (<= main_a_x 74) (not (= main_x main_y))), 34202#(and (<= main_a_x 75) (not (= main_x main_y))), 34203#(and (not (= main_x main_y)) (<= main_a_x 76)), 34204#(and (not (= main_x main_y)) (<= main_a_x 77)), 34205#(and (<= main_a_x 78) (not (= main_x main_y))), 34206#(and (<= main_a_x 79) (not (= main_x main_y))), 34207#(and (not (= main_x main_y)) (<= main_a_x 80)), 34208#(and (not (= main_x main_y)) (<= main_a_x 81)), 34209#(and (not (= main_x main_y)) (<= main_a_x 82)), 34210#(and (not (= main_x main_y)) (<= main_a_x 83)), 34211#(and (<= main_a_x 84) (not (= main_x main_y))), 34212#(and (not (= main_x main_y)) (<= main_a_x 85)), 34213#(and (not (= main_x main_y)) (<= main_a_x 86)), 34214#(and (<= main_a_x 87) (not (= main_x main_y))), 34215#(and (not (= main_x main_y)) (<= main_a_x 88)), 34216#(and (<= main_a_x 89) (not (= main_x main_y))), 34217#(and (not (= main_x main_y)) (<= main_a_x 90)), 34218#(and (<= main_a_x 91) (not (= main_x main_y))), 34219#(and (not (= main_x main_y)) (<= main_a_x 92)), 34220#(and (not (= main_x main_y)) (<= main_a_x 93)), 34221#(and (<= main_a_x 94) (not (= main_x main_y))), 34222#(and (<= main_a_x 95) (not (= main_x main_y))), 34223#(and (not (= main_x main_y)) (<= main_a_x 96)), 34224#(and (<= main_a_x 97) (not (= main_x main_y))), 34225#(and (not (= main_x main_y)) (<= main_a_x 98)), 34226#(and (<= main_a_x 99) (not (= main_x main_y))), 34227#(and (<= main_a_x 100) (not (= main_x main_y))), 34228#(and (not (= main_x main_y)) (<= main_a_x 101)), 34229#(and (not (= main_x main_y)) (<= main_a_x 102)), 34230#(and (not (= main_x main_y)) (<= main_a_x 103)), 34231#(and (<= main_a_x 104) (not (= main_x main_y))), 34232#(and (<= main_a_x 105) (not (= main_x main_y))), 34233#(and (not (= main_x main_y)) (<= main_a_x 106)), 34234#(and (not (= main_x main_y)) (<= main_a_x 107)), 34235#(and (not (= main_x main_y)) (<= main_a_x 108)), 34236#(and (not (= main_x main_y)) (<= main_a_x 109)), 34237#(and (<= main_a_x 110) (not (= main_x main_y))), 34238#(and (not (= main_x main_y)) (<= main_a_x 111)), 34239#(<= main_a_x 112)] [2018-07-23 13:53:05,687 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 13:53:05,687 INFO L450 AbstractCegarLoop]: Interpolant automaton has 115 states [2018-07-23 13:53:05,688 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 115 interpolants. [2018-07-23 13:53:05,689 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6555, Invalid=6555, Unknown=0, NotChecked=0, Total=13110 [2018-07-23 13:53:05,689 INFO L87 Difference]: Start difference. First operand 116 states and 116 transitions. Second operand 115 states. [2018-07-23 13:53:05,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:05,809 INFO L93 Difference]: Finished difference Result 119 states and 119 transitions. [2018-07-23 13:53:05,809 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2018-07-23 13:53:05,809 INFO L78 Accepts]: Start accepts. Automaton has 115 states. Word has length 115 [2018-07-23 13:53:05,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:05,809 INFO L225 Difference]: With dead ends: 119 [2018-07-23 13:53:05,810 INFO L226 Difference]: Without dead ends: 117 [2018-07-23 13:53:05,810 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=6555, Invalid=6555, Unknown=0, NotChecked=0, Total=13110 [2018-07-23 13:53:05,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2018-07-23 13:53:05,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2018-07-23 13:53:05,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2018-07-23 13:53:05,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 117 transitions. [2018-07-23 13:53:05,814 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 117 transitions. Word has length 115 [2018-07-23 13:53:05,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:05,814 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 117 transitions. [2018-07-23 13:53:05,814 INFO L472 AbstractCegarLoop]: Interpolant automaton has 115 states. [2018-07-23 13:53:05,815 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 117 transitions. [2018-07-23 13:53:05,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2018-07-23 13:53:05,815 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:05,815 INFO L357 BasicCegarLoop]: trace histogram [113, 1, 1, 1] [2018-07-23 13:53:05,815 INFO L414 AbstractCegarLoop]: === Iteration 114 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:05,815 INFO L82 PathProgramCache]: Analyzing trace with hash 497039079, now seen corresponding path program 113 times [2018-07-23 13:53:05,815 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:06,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:07,184 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 13:53:07,184 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:07,185 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [115] total 115 [2018-07-23 13:53:07,185 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:07,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:07,185 INFO L185 omatonBuilderFactory]: Interpolants [34816#(and (not (= main_x main_y)) (<= main_a_x 102)), 34817#(and (not (= main_x main_y)) (<= main_a_x 103)), 34818#(and (<= main_a_x 104) (not (= main_x main_y))), 34819#(and (<= main_a_x 105) (not (= main_x main_y))), 34820#(and (not (= main_x main_y)) (<= main_a_x 106)), 34821#(and (not (= main_x main_y)) (<= main_a_x 107)), 34822#(and (not (= main_x main_y)) (<= main_a_x 108)), 34823#(and (not (= main_x main_y)) (<= main_a_x 109)), 34824#(and (<= main_a_x 110) (not (= main_x main_y))), 34825#(and (not (= main_x main_y)) (<= main_a_x 111)), 34826#(and (<= main_a_x 112) (not (= main_x main_y))), 34827#(<= main_a_x 113), 34712#true, 34713#false, 34714#(and (not (= main_x main_y)) (<= main_a_x 0)), 34715#(and (not (= main_x main_y)) (<= main_a_x 1)), 34716#(and (not (= main_x main_y)) (<= main_a_x 2)), 34717#(and (not (= main_x main_y)) (<= main_a_x 3)), 34718#(and (<= main_a_x 4) (not (= main_x main_y))), 34719#(and (<= main_a_x 5) (not (= main_x main_y))), 34720#(and (not (= main_x main_y)) (<= main_a_x 6)), 34721#(and (<= main_a_x 7) (not (= main_x main_y))), 34722#(and (not (= main_x main_y)) (<= main_a_x 8)), 34723#(and (not (= main_x main_y)) (<= main_a_x 9)), 34724#(and (<= main_a_x 10) (not (= main_x main_y))), 34725#(and (not (= main_x main_y)) (<= main_a_x 11)), 34726#(and (not (= main_x main_y)) (<= main_a_x 12)), 34727#(and (<= main_a_x 13) (not (= main_x main_y))), 34728#(and (not (= main_x main_y)) (<= main_a_x 14)), 34729#(and (<= main_a_x 15) (not (= main_x main_y))), 34730#(and (not (= main_x main_y)) (<= main_a_x 16)), 34731#(and (not (= main_x main_y)) (<= main_a_x 17)), 34732#(and (<= main_a_x 18) (not (= main_x main_y))), 34733#(and (<= main_a_x 19) (not (= main_x main_y))), 34734#(and (not (= main_x main_y)) (<= main_a_x 20)), 34735#(and (not (= main_x main_y)) (<= main_a_x 21)), 34736#(and (not (= main_x main_y)) (<= main_a_x 22)), 34737#(and (<= main_a_x 23) (not (= main_x main_y))), 34738#(and (not (= main_x main_y)) (<= main_a_x 24)), 34739#(and (<= main_a_x 25) (not (= main_x main_y))), 34740#(and (not (= main_x main_y)) (<= main_a_x 26)), 34741#(and (not (= main_x main_y)) (<= main_a_x 27)), 34742#(and (not (= main_x main_y)) (<= main_a_x 28)), 34743#(and (not (= main_x main_y)) (<= main_a_x 29)), 34744#(and (<= main_a_x 30) (not (= main_x main_y))), 34745#(and (<= main_a_x 31) (not (= main_x main_y))), 34746#(and (not (= main_x main_y)) (<= main_a_x 32)), 34747#(and (not (= main_x main_y)) (<= main_a_x 33)), 34748#(and (not (= main_x main_y)) (<= main_a_x 34)), 34749#(and (<= main_a_x 35) (not (= main_x main_y))), 34750#(and (not (= main_x main_y)) (<= main_a_x 36)), 34751#(and (<= main_a_x 37) (not (= main_x main_y))), 34752#(and (not (= main_x main_y)) (<= main_a_x 38)), 34753#(and (<= main_a_x 39) (not (= main_x main_y))), 34754#(and (<= main_a_x 40) (not (= main_x main_y))), 34755#(and (not (= main_x main_y)) (<= main_a_x 41)), 34756#(and (not (= main_x main_y)) (<= main_a_x 42)), 34757#(and (<= main_a_x 43) (not (= main_x main_y))), 34758#(and (<= main_a_x 44) (not (= main_x main_y))), 34759#(and (<= main_a_x 45) (not (= main_x main_y))), 34760#(and (<= main_a_x 46) (not (= main_x main_y))), 34761#(and (<= main_a_x 47) (not (= main_x main_y))), 34762#(and (<= main_a_x 48) (not (= main_x main_y))), 34763#(and (not (= main_x main_y)) (<= main_a_x 49)), 34764#(and (not (= main_x main_y)) (<= main_a_x 50)), 34765#(and (<= main_a_x 51) (not (= main_x main_y))), 34766#(and (not (= main_x main_y)) (<= main_a_x 52)), 34767#(and (<= main_a_x 53) (not (= main_x main_y))), 34768#(and (<= main_a_x 54) (not (= main_x main_y))), 34769#(and (not (= main_x main_y)) (<= main_a_x 55)), 34770#(and (not (= main_x main_y)) (<= main_a_x 56)), 34771#(and (not (= main_x main_y)) (<= main_a_x 57)), 34772#(and (not (= main_x main_y)) (<= main_a_x 58)), 34773#(and (not (= main_x main_y)) (<= main_a_x 59)), 34774#(and (<= main_a_x 60) (not (= main_x main_y))), 34775#(and (not (= main_x main_y)) (<= main_a_x 61)), 34776#(and (not (= main_x main_y)) (<= main_a_x 62)), 34777#(and (<= main_a_x 63) (not (= main_x main_y))), 34778#(and (<= main_a_x 64) (not (= main_x main_y))), 34779#(and (<= main_a_x 65) (not (= main_x main_y))), 34780#(and (<= main_a_x 66) (not (= main_x main_y))), 34781#(and (<= main_a_x 67) (not (= main_x main_y))), 34782#(and (not (= main_x main_y)) (<= main_a_x 68)), 34783#(and (<= main_a_x 69) (not (= main_x main_y))), 34784#(and (<= main_a_x 70) (not (= main_x main_y))), 34785#(and (<= main_a_x 71) (not (= main_x main_y))), 34786#(and (not (= main_x main_y)) (<= main_a_x 72)), 34787#(and (not (= main_x main_y)) (<= main_a_x 73)), 34788#(and (<= main_a_x 74) (not (= main_x main_y))), 34789#(and (<= main_a_x 75) (not (= main_x main_y))), 34790#(and (not (= main_x main_y)) (<= main_a_x 76)), 34791#(and (not (= main_x main_y)) (<= main_a_x 77)), 34792#(and (<= main_a_x 78) (not (= main_x main_y))), 34793#(and (<= main_a_x 79) (not (= main_x main_y))), 34794#(and (not (= main_x main_y)) (<= main_a_x 80)), 34795#(and (not (= main_x main_y)) (<= main_a_x 81)), 34796#(and (not (= main_x main_y)) (<= main_a_x 82)), 34797#(and (not (= main_x main_y)) (<= main_a_x 83)), 34798#(and (<= main_a_x 84) (not (= main_x main_y))), 34799#(and (not (= main_x main_y)) (<= main_a_x 85)), 34800#(and (not (= main_x main_y)) (<= main_a_x 86)), 34801#(and (<= main_a_x 87) (not (= main_x main_y))), 34802#(and (not (= main_x main_y)) (<= main_a_x 88)), 34803#(and (<= main_a_x 89) (not (= main_x main_y))), 34804#(and (not (= main_x main_y)) (<= main_a_x 90)), 34805#(and (<= main_a_x 91) (not (= main_x main_y))), 34806#(and (not (= main_x main_y)) (<= main_a_x 92)), 34807#(and (not (= main_x main_y)) (<= main_a_x 93)), 34808#(and (<= main_a_x 94) (not (= main_x main_y))), 34809#(and (<= main_a_x 95) (not (= main_x main_y))), 34810#(and (not (= main_x main_y)) (<= main_a_x 96)), 34811#(and (<= main_a_x 97) (not (= main_x main_y))), 34812#(and (not (= main_x main_y)) (<= main_a_x 98)), 34813#(and (<= main_a_x 99) (not (= main_x main_y))), 34814#(and (<= main_a_x 100) (not (= main_x main_y))), 34815#(and (not (= main_x main_y)) (<= main_a_x 101))] [2018-07-23 13:53:07,186 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 13:53:07,186 INFO L450 AbstractCegarLoop]: Interpolant automaton has 116 states [2018-07-23 13:53:07,187 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 116 interpolants. [2018-07-23 13:53:07,187 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6670, Invalid=6670, Unknown=0, NotChecked=0, Total=13340 [2018-07-23 13:53:07,188 INFO L87 Difference]: Start difference. First operand 117 states and 117 transitions. Second operand 116 states. [2018-07-23 13:53:07,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:07,312 INFO L93 Difference]: Finished difference Result 120 states and 120 transitions. [2018-07-23 13:53:07,313 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2018-07-23 13:53:07,313 INFO L78 Accepts]: Start accepts. Automaton has 116 states. Word has length 116 [2018-07-23 13:53:07,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:07,313 INFO L225 Difference]: With dead ends: 120 [2018-07-23 13:53:07,313 INFO L226 Difference]: Without dead ends: 118 [2018-07-23 13:53:07,314 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 13:53:07,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2018-07-23 13:53:07,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2018-07-23 13:53:07,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2018-07-23 13:53:07,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 118 transitions. [2018-07-23 13:53:07,319 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 118 transitions. Word has length 116 [2018-07-23 13:53:07,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:07,320 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 118 transitions. [2018-07-23 13:53:07,320 INFO L472 AbstractCegarLoop]: Interpolant automaton has 116 states. [2018-07-23 13:53:07,320 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 118 transitions. [2018-07-23 13:53:07,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-07-23 13:53:07,320 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:07,320 INFO L357 BasicCegarLoop]: trace histogram [114, 1, 1, 1] [2018-07-23 13:53:07,320 INFO L414 AbstractCegarLoop]: === Iteration 115 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:07,321 INFO L82 PathProgramCache]: Analyzing trace with hash -1771642356, now seen corresponding path program 114 times [2018-07-23 13:53:07,321 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:07,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:08,830 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 13:53:08,830 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:08,830 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [116] total 116 [2018-07-23 13:53:08,830 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:08,831 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 13:53:08,831 INFO L185 omatonBuilderFactory]: Interpolants [35328#(and (not (= main_x main_y)) (<= main_a_x 22)), 35329#(and (<= main_a_x 23) (not (= main_x main_y))), 35330#(and (not (= main_x main_y)) (<= main_a_x 24)), 35331#(and (<= main_a_x 25) (not (= main_x main_y))), 35332#(and (not (= main_x main_y)) (<= main_a_x 26)), 35333#(and (not (= main_x main_y)) (<= main_a_x 27)), 35334#(and (not (= main_x main_y)) (<= main_a_x 28)), 35335#(and (not (= main_x main_y)) (<= main_a_x 29)), 35336#(and (<= main_a_x 30) (not (= main_x main_y))), 35337#(and (<= main_a_x 31) (not (= main_x main_y))), 35338#(and (not (= main_x main_y)) (<= main_a_x 32)), 35339#(and (not (= main_x main_y)) (<= main_a_x 33)), 35340#(and (not (= main_x main_y)) (<= main_a_x 34)), 35341#(and (<= main_a_x 35) (not (= main_x main_y))), 35342#(and (not (= main_x main_y)) (<= main_a_x 36)), 35343#(and (<= main_a_x 37) (not (= main_x main_y))), 35344#(and (not (= main_x main_y)) (<= main_a_x 38)), 35345#(and (<= main_a_x 39) (not (= main_x main_y))), 35346#(and (<= main_a_x 40) (not (= main_x main_y))), 35347#(and (not (= main_x main_y)) (<= main_a_x 41)), 35348#(and (not (= main_x main_y)) (<= main_a_x 42)), 35349#(and (<= main_a_x 43) (not (= main_x main_y))), 35350#(and (<= main_a_x 44) (not (= main_x main_y))), 35351#(and (<= main_a_x 45) (not (= main_x main_y))), 35352#(and (<= main_a_x 46) (not (= main_x main_y))), 35353#(and (<= main_a_x 47) (not (= main_x main_y))), 35354#(and (<= main_a_x 48) (not (= main_x main_y))), 35355#(and (not (= main_x main_y)) (<= main_a_x 49)), 35356#(and (not (= main_x main_y)) (<= main_a_x 50)), 35357#(and (<= main_a_x 51) (not (= main_x main_y))), 35358#(and (not (= main_x main_y)) (<= main_a_x 52)), 35359#(and (<= main_a_x 53) (not (= main_x main_y))), 35360#(and (<= main_a_x 54) (not (= main_x main_y))), 35361#(and (not (= main_x main_y)) (<= main_a_x 55)), 35362#(and (not (= main_x main_y)) (<= main_a_x 56)), 35363#(and (not (= main_x main_y)) (<= main_a_x 57)), 35364#(and (not (= main_x main_y)) (<= main_a_x 58)), 35365#(and (not (= main_x main_y)) (<= main_a_x 59)), 35366#(and (<= main_a_x 60) (not (= main_x main_y))), 35367#(and (not (= main_x main_y)) (<= main_a_x 61)), 35368#(and (not (= main_x main_y)) (<= main_a_x 62)), 35369#(and (<= main_a_x 63) (not (= main_x main_y))), 35370#(and (<= main_a_x 64) (not (= main_x main_y))), 35371#(and (<= main_a_x 65) (not (= main_x main_y))), 35372#(and (<= main_a_x 66) (not (= main_x main_y))), 35373#(and (<= main_a_x 67) (not (= main_x main_y))), 35374#(and (not (= main_x main_y)) (<= main_a_x 68)), 35375#(and (<= main_a_x 69) (not (= main_x main_y))), 35376#(and (<= main_a_x 70) (not (= main_x main_y))), 35377#(and (<= main_a_x 71) (not (= main_x main_y))), 35378#(and (not (= main_x main_y)) (<= main_a_x 72)), 35379#(and (not (= main_x main_y)) (<= main_a_x 73)), 35380#(and (<= main_a_x 74) (not (= main_x main_y))), 35381#(and (<= main_a_x 75) (not (= main_x main_y))), 35382#(and (not (= main_x main_y)) (<= main_a_x 76)), 35383#(and (not (= main_x main_y)) (<= main_a_x 77)), 35384#(and (<= main_a_x 78) (not (= main_x main_y))), 35385#(and (<= main_a_x 79) (not (= main_x main_y))), 35386#(and (not (= main_x main_y)) (<= main_a_x 80)), 35387#(and (not (= main_x main_y)) (<= main_a_x 81)), 35388#(and (not (= main_x main_y)) (<= main_a_x 82)), 35389#(and (not (= main_x main_y)) (<= main_a_x 83)), 35390#(and (<= main_a_x 84) (not (= main_x main_y))), 35391#(and (not (= main_x main_y)) (<= main_a_x 85)), 35392#(and (not (= main_x main_y)) (<= main_a_x 86)), 35393#(and (<= main_a_x 87) (not (= main_x main_y))), 35394#(and (not (= main_x main_y)) (<= main_a_x 88)), 35395#(and (<= main_a_x 89) (not (= main_x main_y))), 35396#(and (not (= main_x main_y)) (<= main_a_x 90)), 35397#(and (<= main_a_x 91) (not (= main_x main_y))), 35398#(and (not (= main_x main_y)) (<= main_a_x 92)), 35399#(and (not (= main_x main_y)) (<= main_a_x 93)), 35400#(and (<= main_a_x 94) (not (= main_x main_y))), 35401#(and (<= main_a_x 95) (not (= main_x main_y))), 35402#(and (not (= main_x main_y)) (<= main_a_x 96)), 35403#(and (<= main_a_x 97) (not (= main_x main_y))), 35404#(and (not (= main_x main_y)) (<= main_a_x 98)), 35405#(and (<= main_a_x 99) (not (= main_x main_y))), 35406#(and (<= main_a_x 100) (not (= main_x main_y))), 35407#(and (not (= main_x main_y)) (<= main_a_x 101)), 35408#(and (not (= main_x main_y)) (<= main_a_x 102)), 35409#(and (not (= main_x main_y)) (<= main_a_x 103)), 35410#(and (<= main_a_x 104) (not (= main_x main_y))), 35411#(and (<= main_a_x 105) (not (= main_x main_y))), 35412#(and (not (= main_x main_y)) (<= main_a_x 106)), 35413#(and (not (= main_x main_y)) (<= main_a_x 107)), 35414#(and (not (= main_x main_y)) (<= main_a_x 108)), 35415#(and (not (= main_x main_y)) (<= main_a_x 109)), 35416#(and (<= main_a_x 110) (not (= main_x main_y))), 35417#(and (not (= main_x main_y)) (<= main_a_x 111)), 35418#(and (<= main_a_x 112) (not (= main_x main_y))), 35419#(and (<= main_a_x 113) (not (= main_x main_y))), 35420#(<= main_a_x 114), 35304#true, 35305#false, 35306#(and (not (= main_x main_y)) (<= main_a_x 0)), 35307#(and (not (= main_x main_y)) (<= main_a_x 1)), 35308#(and (not (= main_x main_y)) (<= main_a_x 2)), 35309#(and (not (= main_x main_y)) (<= main_a_x 3)), 35310#(and (<= main_a_x 4) (not (= main_x main_y))), 35311#(and (<= main_a_x 5) (not (= main_x main_y))), 35312#(and (not (= main_x main_y)) (<= main_a_x 6)), 35313#(and (<= main_a_x 7) (not (= main_x main_y))), 35314#(and (not (= main_x main_y)) (<= main_a_x 8)), 35315#(and (not (= main_x main_y)) (<= main_a_x 9)), 35316#(and (<= main_a_x 10) (not (= main_x main_y))), 35317#(and (not (= main_x main_y)) (<= main_a_x 11)), 35318#(and (not (= main_x main_y)) (<= main_a_x 12)), 35319#(and (<= main_a_x 13) (not (= main_x main_y))), 35320#(and (not (= main_x main_y)) (<= main_a_x 14)), 35321#(and (<= main_a_x 15) (not (= main_x main_y))), 35322#(and (not (= main_x main_y)) (<= main_a_x 16)), 35323#(and (not (= main_x main_y)) (<= main_a_x 17)), 35324#(and (<= main_a_x 18) (not (= main_x main_y))), 35325#(and (<= main_a_x 19) (not (= main_x main_y))), 35326#(and (not (= main_x main_y)) (<= main_a_x 20)), 35327#(and (not (= main_x main_y)) (<= main_a_x 21))] [2018-07-23 13:53:08,831 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 13:53:08,832 INFO L450 AbstractCegarLoop]: Interpolant automaton has 117 states [2018-07-23 13:53:08,832 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 117 interpolants. [2018-07-23 13:53:08,833 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6786, Invalid=6786, Unknown=0, NotChecked=0, Total=13572 [2018-07-23 13:53:08,833 INFO L87 Difference]: Start difference. First operand 118 states and 118 transitions. Second operand 117 states. [2018-07-23 13:53:08,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:08,967 INFO L93 Difference]: Finished difference Result 121 states and 121 transitions. [2018-07-23 13:53:08,967 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2018-07-23 13:53:08,967 INFO L78 Accepts]: Start accepts. Automaton has 117 states. Word has length 117 [2018-07-23 13:53:08,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:08,968 INFO L225 Difference]: With dead ends: 121 [2018-07-23 13:53:08,968 INFO L226 Difference]: Without dead ends: 119 [2018-07-23 13:53:08,968 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 13:53:08,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2018-07-23 13:53:08,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2018-07-23 13:53:08,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2018-07-23 13:53:08,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 119 transitions. [2018-07-23 13:53:08,973 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 119 transitions. Word has length 117 [2018-07-23 13:53:08,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:08,973 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 119 transitions. [2018-07-23 13:53:08,973 INFO L472 AbstractCegarLoop]: Interpolant automaton has 117 states. [2018-07-23 13:53:08,973 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 119 transitions. [2018-07-23 13:53:08,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2018-07-23 13:53:08,974 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:08,974 INFO L357 BasicCegarLoop]: trace histogram [115, 1, 1, 1] [2018-07-23 13:53:08,974 INFO L414 AbstractCegarLoop]: === Iteration 116 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:08,974 INFO L82 PathProgramCache]: Analyzing trace with hash 913677191, now seen corresponding path program 115 times [2018-07-23 13:53:08,974 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:09,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:10,281 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 13:53:10,281 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:10,281 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [117] total 117 [2018-07-23 13:53:10,281 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:10,281 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 13:53:10,282 INFO L185 omatonBuilderFactory]: Interpolants [35901#true, 35902#false, 35903#(and (not (= main_x main_y)) (<= main_a_x 0)), 35904#(and (not (= main_x main_y)) (<= main_a_x 1)), 35905#(and (not (= main_x main_y)) (<= main_a_x 2)), 35906#(and (not (= main_x main_y)) (<= main_a_x 3)), 35907#(and (<= main_a_x 4) (not (= main_x main_y))), 35908#(and (<= main_a_x 5) (not (= main_x main_y))), 35909#(and (not (= main_x main_y)) (<= main_a_x 6)), 35910#(and (<= main_a_x 7) (not (= main_x main_y))), 35911#(and (not (= main_x main_y)) (<= main_a_x 8)), 35912#(and (not (= main_x main_y)) (<= main_a_x 9)), 35913#(and (<= main_a_x 10) (not (= main_x main_y))), 35914#(and (not (= main_x main_y)) (<= main_a_x 11)), 35915#(and (not (= main_x main_y)) (<= main_a_x 12)), 35916#(and (<= main_a_x 13) (not (= main_x main_y))), 35917#(and (not (= main_x main_y)) (<= main_a_x 14)), 35918#(and (<= main_a_x 15) (not (= main_x main_y))), 35919#(and (not (= main_x main_y)) (<= main_a_x 16)), 35920#(and (not (= main_x main_y)) (<= main_a_x 17)), 35921#(and (<= main_a_x 18) (not (= main_x main_y))), 35922#(and (<= main_a_x 19) (not (= main_x main_y))), 35923#(and (not (= main_x main_y)) (<= main_a_x 20)), 35924#(and (not (= main_x main_y)) (<= main_a_x 21)), 35925#(and (not (= main_x main_y)) (<= main_a_x 22)), 35926#(and (<= main_a_x 23) (not (= main_x main_y))), 35927#(and (not (= main_x main_y)) (<= main_a_x 24)), 35928#(and (<= main_a_x 25) (not (= main_x main_y))), 35929#(and (not (= main_x main_y)) (<= main_a_x 26)), 35930#(and (not (= main_x main_y)) (<= main_a_x 27)), 35931#(and (not (= main_x main_y)) (<= main_a_x 28)), 35932#(and (not (= main_x main_y)) (<= main_a_x 29)), 35933#(and (<= main_a_x 30) (not (= main_x main_y))), 35934#(and (<= main_a_x 31) (not (= main_x main_y))), 35935#(and (not (= main_x main_y)) (<= main_a_x 32)), 35936#(and (not (= main_x main_y)) (<= main_a_x 33)), 35937#(and (not (= main_x main_y)) (<= main_a_x 34)), 35938#(and (<= main_a_x 35) (not (= main_x main_y))), 35939#(and (not (= main_x main_y)) (<= main_a_x 36)), 35940#(and (<= main_a_x 37) (not (= main_x main_y))), 35941#(and (not (= main_x main_y)) (<= main_a_x 38)), 35942#(and (<= main_a_x 39) (not (= main_x main_y))), 35943#(and (<= main_a_x 40) (not (= main_x main_y))), 35944#(and (not (= main_x main_y)) (<= main_a_x 41)), 35945#(and (not (= main_x main_y)) (<= main_a_x 42)), 35946#(and (<= main_a_x 43) (not (= main_x main_y))), 35947#(and (<= main_a_x 44) (not (= main_x main_y))), 35948#(and (<= main_a_x 45) (not (= main_x main_y))), 35949#(and (<= main_a_x 46) (not (= main_x main_y))), 35950#(and (<= main_a_x 47) (not (= main_x main_y))), 35951#(and (<= main_a_x 48) (not (= main_x main_y))), 35952#(and (not (= main_x main_y)) (<= main_a_x 49)), 35953#(and (not (= main_x main_y)) (<= main_a_x 50)), 35954#(and (<= main_a_x 51) (not (= main_x main_y))), 35955#(and (not (= main_x main_y)) (<= main_a_x 52)), 35956#(and (<= main_a_x 53) (not (= main_x main_y))), 35957#(and (<= main_a_x 54) (not (= main_x main_y))), 35958#(and (not (= main_x main_y)) (<= main_a_x 55)), 35959#(and (not (= main_x main_y)) (<= main_a_x 56)), 35960#(and (not (= main_x main_y)) (<= main_a_x 57)), 35961#(and (not (= main_x main_y)) (<= main_a_x 58)), 35962#(and (not (= main_x main_y)) (<= main_a_x 59)), 35963#(and (<= main_a_x 60) (not (= main_x main_y))), 35964#(and (not (= main_x main_y)) (<= main_a_x 61)), 35965#(and (not (= main_x main_y)) (<= main_a_x 62)), 35966#(and (<= main_a_x 63) (not (= main_x main_y))), 35967#(and (<= main_a_x 64) (not (= main_x main_y))), 35968#(and (<= main_a_x 65) (not (= main_x main_y))), 35969#(and (<= main_a_x 66) (not (= main_x main_y))), 35970#(and (<= main_a_x 67) (not (= main_x main_y))), 35971#(and (not (= main_x main_y)) (<= main_a_x 68)), 35972#(and (<= main_a_x 69) (not (= main_x main_y))), 35973#(and (<= main_a_x 70) (not (= main_x main_y))), 35974#(and (<= main_a_x 71) (not (= main_x main_y))), 35975#(and (not (= main_x main_y)) (<= main_a_x 72)), 35976#(and (not (= main_x main_y)) (<= main_a_x 73)), 35977#(and (<= main_a_x 74) (not (= main_x main_y))), 35978#(and (<= main_a_x 75) (not (= main_x main_y))), 35979#(and (not (= main_x main_y)) (<= main_a_x 76)), 35980#(and (not (= main_x main_y)) (<= main_a_x 77)), 35981#(and (<= main_a_x 78) (not (= main_x main_y))), 35982#(and (<= main_a_x 79) (not (= main_x main_y))), 35983#(and (not (= main_x main_y)) (<= main_a_x 80)), 35984#(and (not (= main_x main_y)) (<= main_a_x 81)), 35985#(and (not (= main_x main_y)) (<= main_a_x 82)), 35986#(and (not (= main_x main_y)) (<= main_a_x 83)), 35987#(and (<= main_a_x 84) (not (= main_x main_y))), 35988#(and (not (= main_x main_y)) (<= main_a_x 85)), 35989#(and (not (= main_x main_y)) (<= main_a_x 86)), 35990#(and (<= main_a_x 87) (not (= main_x main_y))), 35991#(and (not (= main_x main_y)) (<= main_a_x 88)), 35992#(and (<= main_a_x 89) (not (= main_x main_y))), 35993#(and (not (= main_x main_y)) (<= main_a_x 90)), 35994#(and (<= main_a_x 91) (not (= main_x main_y))), 35995#(and (not (= main_x main_y)) (<= main_a_x 92)), 35996#(and (not (= main_x main_y)) (<= main_a_x 93)), 35997#(and (<= main_a_x 94) (not (= main_x main_y))), 35998#(and (<= main_a_x 95) (not (= main_x main_y))), 35999#(and (not (= main_x main_y)) (<= main_a_x 96)), 36000#(and (<= main_a_x 97) (not (= main_x main_y))), 36001#(and (not (= main_x main_y)) (<= main_a_x 98)), 36002#(and (<= main_a_x 99) (not (= main_x main_y))), 36003#(and (<= main_a_x 100) (not (= main_x main_y))), 36004#(and (not (= main_x main_y)) (<= main_a_x 101)), 36005#(and (not (= main_x main_y)) (<= main_a_x 102)), 36006#(and (not (= main_x main_y)) (<= main_a_x 103)), 36007#(and (<= main_a_x 104) (not (= main_x main_y))), 36008#(and (<= main_a_x 105) (not (= main_x main_y))), 36009#(and (not (= main_x main_y)) (<= main_a_x 106)), 36010#(and (not (= main_x main_y)) (<= main_a_x 107)), 36011#(and (not (= main_x main_y)) (<= main_a_x 108)), 36012#(and (not (= main_x main_y)) (<= main_a_x 109)), 36013#(and (<= main_a_x 110) (not (= main_x main_y))), 36014#(and (not (= main_x main_y)) (<= main_a_x 111)), 36015#(and (<= main_a_x 112) (not (= main_x main_y))), 36016#(and (<= main_a_x 113) (not (= main_x main_y))), 36017#(and (not (= main_x main_y)) (<= main_a_x 114)), 36018#(<= main_a_x 115)] [2018-07-23 13:53:10,282 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 13:53:10,283 INFO L450 AbstractCegarLoop]: Interpolant automaton has 118 states [2018-07-23 13:53:10,284 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 118 interpolants. [2018-07-23 13:53:10,284 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6903, Invalid=6903, Unknown=0, NotChecked=0, Total=13806 [2018-07-23 13:53:10,285 INFO L87 Difference]: Start difference. First operand 119 states and 119 transitions. Second operand 118 states. [2018-07-23 13:53:10,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:10,420 INFO L93 Difference]: Finished difference Result 122 states and 122 transitions. [2018-07-23 13:53:10,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2018-07-23 13:53:10,420 INFO L78 Accepts]: Start accepts. Automaton has 118 states. Word has length 118 [2018-07-23 13:53:10,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:10,421 INFO L225 Difference]: With dead ends: 122 [2018-07-23 13:53:10,421 INFO L226 Difference]: Without dead ends: 120 [2018-07-23 13:53:10,422 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=6903, Invalid=6903, Unknown=0, NotChecked=0, Total=13806 [2018-07-23 13:53:10,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2018-07-23 13:53:10,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2018-07-23 13:53:10,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2018-07-23 13:53:10,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 120 transitions. [2018-07-23 13:53:10,427 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 120 transitions. Word has length 118 [2018-07-23 13:53:10,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:10,428 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 120 transitions. [2018-07-23 13:53:10,428 INFO L472 AbstractCegarLoop]: Interpolant automaton has 118 states. [2018-07-23 13:53:10,428 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 120 transitions. [2018-07-23 13:53:10,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2018-07-23 13:53:10,428 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:10,428 INFO L357 BasicCegarLoop]: trace histogram [116, 1, 1, 1] [2018-07-23 13:53:10,429 INFO L414 AbstractCegarLoop]: === Iteration 117 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:10,429 INFO L82 PathProgramCache]: Analyzing trace with hash -1740762772, now seen corresponding path program 116 times [2018-07-23 13:53:10,429 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:10,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:11,897 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 13:53:11,897 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:11,898 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [118] total 118 [2018-07-23 13:53:11,898 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:11,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:11,898 INFO L185 omatonBuilderFactory]: Interpolants [36608#(and (not (= main_x main_y)) (<= main_a_x 103)), 36609#(and (<= main_a_x 104) (not (= main_x main_y))), 36610#(and (<= main_a_x 105) (not (= main_x main_y))), 36611#(and (not (= main_x main_y)) (<= main_a_x 106)), 36612#(and (not (= main_x main_y)) (<= main_a_x 107)), 36613#(and (not (= main_x main_y)) (<= main_a_x 108)), 36614#(and (not (= main_x main_y)) (<= main_a_x 109)), 36615#(and (<= main_a_x 110) (not (= main_x main_y))), 36616#(and (not (= main_x main_y)) (<= main_a_x 111)), 36617#(and (<= main_a_x 112) (not (= main_x main_y))), 36618#(and (<= main_a_x 113) (not (= main_x main_y))), 36619#(and (not (= main_x main_y)) (<= main_a_x 114)), 36620#(and (not (= main_x main_y)) (<= main_a_x 115)), 36621#(<= main_a_x 116), 36503#true, 36504#false, 36505#(and (not (= main_x main_y)) (<= main_a_x 0)), 36506#(and (not (= main_x main_y)) (<= main_a_x 1)), 36507#(and (not (= main_x main_y)) (<= main_a_x 2)), 36508#(and (not (= main_x main_y)) (<= main_a_x 3)), 36509#(and (<= main_a_x 4) (not (= main_x main_y))), 36510#(and (<= main_a_x 5) (not (= main_x main_y))), 36511#(and (not (= main_x main_y)) (<= main_a_x 6)), 36512#(and (<= main_a_x 7) (not (= main_x main_y))), 36513#(and (not (= main_x main_y)) (<= main_a_x 8)), 36514#(and (not (= main_x main_y)) (<= main_a_x 9)), 36515#(and (<= main_a_x 10) (not (= main_x main_y))), 36516#(and (not (= main_x main_y)) (<= main_a_x 11)), 36517#(and (not (= main_x main_y)) (<= main_a_x 12)), 36518#(and (<= main_a_x 13) (not (= main_x main_y))), 36519#(and (not (= main_x main_y)) (<= main_a_x 14)), 36520#(and (<= main_a_x 15) (not (= main_x main_y))), 36521#(and (not (= main_x main_y)) (<= main_a_x 16)), 36522#(and (not (= main_x main_y)) (<= main_a_x 17)), 36523#(and (<= main_a_x 18) (not (= main_x main_y))), 36524#(and (<= main_a_x 19) (not (= main_x main_y))), 36525#(and (not (= main_x main_y)) (<= main_a_x 20)), 36526#(and (not (= main_x main_y)) (<= main_a_x 21)), 36527#(and (not (= main_x main_y)) (<= main_a_x 22)), 36528#(and (<= main_a_x 23) (not (= main_x main_y))), 36529#(and (not (= main_x main_y)) (<= main_a_x 24)), 36530#(and (<= main_a_x 25) (not (= main_x main_y))), 36531#(and (not (= main_x main_y)) (<= main_a_x 26)), 36532#(and (not (= main_x main_y)) (<= main_a_x 27)), 36533#(and (not (= main_x main_y)) (<= main_a_x 28)), 36534#(and (not (= main_x main_y)) (<= main_a_x 29)), 36535#(and (<= main_a_x 30) (not (= main_x main_y))), 36536#(and (<= main_a_x 31) (not (= main_x main_y))), 36537#(and (not (= main_x main_y)) (<= main_a_x 32)), 36538#(and (not (= main_x main_y)) (<= main_a_x 33)), 36539#(and (not (= main_x main_y)) (<= main_a_x 34)), 36540#(and (<= main_a_x 35) (not (= main_x main_y))), 36541#(and (not (= main_x main_y)) (<= main_a_x 36)), 36542#(and (<= main_a_x 37) (not (= main_x main_y))), 36543#(and (not (= main_x main_y)) (<= main_a_x 38)), 36544#(and (<= main_a_x 39) (not (= main_x main_y))), 36545#(and (<= main_a_x 40) (not (= main_x main_y))), 36546#(and (not (= main_x main_y)) (<= main_a_x 41)), 36547#(and (not (= main_x main_y)) (<= main_a_x 42)), 36548#(and (<= main_a_x 43) (not (= main_x main_y))), 36549#(and (<= main_a_x 44) (not (= main_x main_y))), 36550#(and (<= main_a_x 45) (not (= main_x main_y))), 36551#(and (<= main_a_x 46) (not (= main_x main_y))), 36552#(and (<= main_a_x 47) (not (= main_x main_y))), 36553#(and (<= main_a_x 48) (not (= main_x main_y))), 36554#(and (not (= main_x main_y)) (<= main_a_x 49)), 36555#(and (not (= main_x main_y)) (<= main_a_x 50)), 36556#(and (<= main_a_x 51) (not (= main_x main_y))), 36557#(and (not (= main_x main_y)) (<= main_a_x 52)), 36558#(and (<= main_a_x 53) (not (= main_x main_y))), 36559#(and (<= main_a_x 54) (not (= main_x main_y))), 36560#(and (not (= main_x main_y)) (<= main_a_x 55)), 36561#(and (not (= main_x main_y)) (<= main_a_x 56)), 36562#(and (not (= main_x main_y)) (<= main_a_x 57)), 36563#(and (not (= main_x main_y)) (<= main_a_x 58)), 36564#(and (not (= main_x main_y)) (<= main_a_x 59)), 36565#(and (<= main_a_x 60) (not (= main_x main_y))), 36566#(and (not (= main_x main_y)) (<= main_a_x 61)), 36567#(and (not (= main_x main_y)) (<= main_a_x 62)), 36568#(and (<= main_a_x 63) (not (= main_x main_y))), 36569#(and (<= main_a_x 64) (not (= main_x main_y))), 36570#(and (<= main_a_x 65) (not (= main_x main_y))), 36571#(and (<= main_a_x 66) (not (= main_x main_y))), 36572#(and (<= main_a_x 67) (not (= main_x main_y))), 36573#(and (not (= main_x main_y)) (<= main_a_x 68)), 36574#(and (<= main_a_x 69) (not (= main_x main_y))), 36575#(and (<= main_a_x 70) (not (= main_x main_y))), 36576#(and (<= main_a_x 71) (not (= main_x main_y))), 36577#(and (not (= main_x main_y)) (<= main_a_x 72)), 36578#(and (not (= main_x main_y)) (<= main_a_x 73)), 36579#(and (<= main_a_x 74) (not (= main_x main_y))), 36580#(and (<= main_a_x 75) (not (= main_x main_y))), 36581#(and (not (= main_x main_y)) (<= main_a_x 76)), 36582#(and (not (= main_x main_y)) (<= main_a_x 77)), 36583#(and (<= main_a_x 78) (not (= main_x main_y))), 36584#(and (<= main_a_x 79) (not (= main_x main_y))), 36585#(and (not (= main_x main_y)) (<= main_a_x 80)), 36586#(and (not (= main_x main_y)) (<= main_a_x 81)), 36587#(and (not (= main_x main_y)) (<= main_a_x 82)), 36588#(and (not (= main_x main_y)) (<= main_a_x 83)), 36589#(and (<= main_a_x 84) (not (= main_x main_y))), 36590#(and (not (= main_x main_y)) (<= main_a_x 85)), 36591#(and (not (= main_x main_y)) (<= main_a_x 86)), 36592#(and (<= main_a_x 87) (not (= main_x main_y))), 36593#(and (not (= main_x main_y)) (<= main_a_x 88)), 36594#(and (<= main_a_x 89) (not (= main_x main_y))), 36595#(and (not (= main_x main_y)) (<= main_a_x 90)), 36596#(and (<= main_a_x 91) (not (= main_x main_y))), 36597#(and (not (= main_x main_y)) (<= main_a_x 92)), 36598#(and (not (= main_x main_y)) (<= main_a_x 93)), 36599#(and (<= main_a_x 94) (not (= main_x main_y))), 36600#(and (<= main_a_x 95) (not (= main_x main_y))), 36601#(and (not (= main_x main_y)) (<= main_a_x 96)), 36602#(and (<= main_a_x 97) (not (= main_x main_y))), 36603#(and (not (= main_x main_y)) (<= main_a_x 98)), 36604#(and (<= main_a_x 99) (not (= main_x main_y))), 36605#(and (<= main_a_x 100) (not (= main_x main_y))), 36606#(and (not (= main_x main_y)) (<= main_a_x 101)), 36607#(and (not (= main_x main_y)) (<= main_a_x 102))] [2018-07-23 13:53:11,899 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 13:53:11,899 INFO L450 AbstractCegarLoop]: Interpolant automaton has 119 states [2018-07-23 13:53:11,900 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 119 interpolants. [2018-07-23 13:53:11,900 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7021, Invalid=7021, Unknown=0, NotChecked=0, Total=14042 [2018-07-23 13:53:11,901 INFO L87 Difference]: Start difference. First operand 120 states and 120 transitions. Second operand 119 states. [2018-07-23 13:53:12,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:12,036 INFO L93 Difference]: Finished difference Result 123 states and 123 transitions. [2018-07-23 13:53:12,036 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2018-07-23 13:53:12,036 INFO L78 Accepts]: Start accepts. Automaton has 119 states. Word has length 119 [2018-07-23 13:53:12,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:12,037 INFO L225 Difference]: With dead ends: 123 [2018-07-23 13:53:12,037 INFO L226 Difference]: Without dead ends: 121 [2018-07-23 13:53:12,038 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=7021, Invalid=7021, Unknown=0, NotChecked=0, Total=14042 [2018-07-23 13:53:12,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2018-07-23 13:53:12,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2018-07-23 13:53:12,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2018-07-23 13:53:12,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 121 transitions. [2018-07-23 13:53:12,043 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 121 transitions. Word has length 119 [2018-07-23 13:53:12,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:12,044 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 121 transitions. [2018-07-23 13:53:12,044 INFO L472 AbstractCegarLoop]: Interpolant automaton has 119 states. [2018-07-23 13:53:12,044 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 121 transitions. [2018-07-23 13:53:12,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2018-07-23 13:53:12,044 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:12,045 INFO L357 BasicCegarLoop]: trace histogram [117, 1, 1, 1] [2018-07-23 13:53:12,045 INFO L414 AbstractCegarLoop]: === Iteration 118 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:12,045 INFO L82 PathProgramCache]: Analyzing trace with hash 1870944295, now seen corresponding path program 117 times [2018-07-23 13:53:12,045 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:12,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:13,713 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 13:53:13,713 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:13,713 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [119] total 119 [2018-07-23 13:53:13,713 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:13,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:13,714 INFO L185 omatonBuilderFactory]: Interpolants [37120#(and (not (= main_x main_y)) (<= main_a_x 8)), 37121#(and (not (= main_x main_y)) (<= main_a_x 9)), 37122#(and (<= main_a_x 10) (not (= main_x main_y))), 37123#(and (not (= main_x main_y)) (<= main_a_x 11)), 37124#(and (not (= main_x main_y)) (<= main_a_x 12)), 37125#(and (<= main_a_x 13) (not (= main_x main_y))), 37126#(and (not (= main_x main_y)) (<= main_a_x 14)), 37127#(and (<= main_a_x 15) (not (= main_x main_y))), 37128#(and (not (= main_x main_y)) (<= main_a_x 16)), 37129#(and (not (= main_x main_y)) (<= main_a_x 17)), 37130#(and (<= main_a_x 18) (not (= main_x main_y))), 37131#(and (<= main_a_x 19) (not (= main_x main_y))), 37132#(and (not (= main_x main_y)) (<= main_a_x 20)), 37133#(and (not (= main_x main_y)) (<= main_a_x 21)), 37134#(and (not (= main_x main_y)) (<= main_a_x 22)), 37135#(and (<= main_a_x 23) (not (= main_x main_y))), 37136#(and (not (= main_x main_y)) (<= main_a_x 24)), 37137#(and (<= main_a_x 25) (not (= main_x main_y))), 37138#(and (not (= main_x main_y)) (<= main_a_x 26)), 37139#(and (not (= main_x main_y)) (<= main_a_x 27)), 37140#(and (not (= main_x main_y)) (<= main_a_x 28)), 37141#(and (not (= main_x main_y)) (<= main_a_x 29)), 37142#(and (<= main_a_x 30) (not (= main_x main_y))), 37143#(and (<= main_a_x 31) (not (= main_x main_y))), 37144#(and (not (= main_x main_y)) (<= main_a_x 32)), 37145#(and (not (= main_x main_y)) (<= main_a_x 33)), 37146#(and (not (= main_x main_y)) (<= main_a_x 34)), 37147#(and (<= main_a_x 35) (not (= main_x main_y))), 37148#(and (not (= main_x main_y)) (<= main_a_x 36)), 37149#(and (<= main_a_x 37) (not (= main_x main_y))), 37150#(and (not (= main_x main_y)) (<= main_a_x 38)), 37151#(and (<= main_a_x 39) (not (= main_x main_y))), 37152#(and (<= main_a_x 40) (not (= main_x main_y))), 37153#(and (not (= main_x main_y)) (<= main_a_x 41)), 37154#(and (not (= main_x main_y)) (<= main_a_x 42)), 37155#(and (<= main_a_x 43) (not (= main_x main_y))), 37156#(and (<= main_a_x 44) (not (= main_x main_y))), 37157#(and (<= main_a_x 45) (not (= main_x main_y))), 37158#(and (<= main_a_x 46) (not (= main_x main_y))), 37159#(and (<= main_a_x 47) (not (= main_x main_y))), 37160#(and (<= main_a_x 48) (not (= main_x main_y))), 37161#(and (not (= main_x main_y)) (<= main_a_x 49)), 37162#(and (not (= main_x main_y)) (<= main_a_x 50)), 37163#(and (<= main_a_x 51) (not (= main_x main_y))), 37164#(and (not (= main_x main_y)) (<= main_a_x 52)), 37165#(and (<= main_a_x 53) (not (= main_x main_y))), 37166#(and (<= main_a_x 54) (not (= main_x main_y))), 37167#(and (not (= main_x main_y)) (<= main_a_x 55)), 37168#(and (not (= main_x main_y)) (<= main_a_x 56)), 37169#(and (not (= main_x main_y)) (<= main_a_x 57)), 37170#(and (not (= main_x main_y)) (<= main_a_x 58)), 37171#(and (not (= main_x main_y)) (<= main_a_x 59)), 37172#(and (<= main_a_x 60) (not (= main_x main_y))), 37173#(and (not (= main_x main_y)) (<= main_a_x 61)), 37174#(and (not (= main_x main_y)) (<= main_a_x 62)), 37175#(and (<= main_a_x 63) (not (= main_x main_y))), 37176#(and (<= main_a_x 64) (not (= main_x main_y))), 37177#(and (<= main_a_x 65) (not (= main_x main_y))), 37178#(and (<= main_a_x 66) (not (= main_x main_y))), 37179#(and (<= main_a_x 67) (not (= main_x main_y))), 37180#(and (not (= main_x main_y)) (<= main_a_x 68)), 37181#(and (<= main_a_x 69) (not (= main_x main_y))), 37182#(and (<= main_a_x 70) (not (= main_x main_y))), 37183#(and (<= main_a_x 71) (not (= main_x main_y))), 37184#(and (not (= main_x main_y)) (<= main_a_x 72)), 37185#(and (not (= main_x main_y)) (<= main_a_x 73)), 37186#(and (<= main_a_x 74) (not (= main_x main_y))), 37187#(and (<= main_a_x 75) (not (= main_x main_y))), 37188#(and (not (= main_x main_y)) (<= main_a_x 76)), 37189#(and (not (= main_x main_y)) (<= main_a_x 77)), 37190#(and (<= main_a_x 78) (not (= main_x main_y))), 37191#(and (<= main_a_x 79) (not (= main_x main_y))), 37192#(and (not (= main_x main_y)) (<= main_a_x 80)), 37193#(and (not (= main_x main_y)) (<= main_a_x 81)), 37194#(and (not (= main_x main_y)) (<= main_a_x 82)), 37195#(and (not (= main_x main_y)) (<= main_a_x 83)), 37196#(and (<= main_a_x 84) (not (= main_x main_y))), 37197#(and (not (= main_x main_y)) (<= main_a_x 85)), 37198#(and (not (= main_x main_y)) (<= main_a_x 86)), 37199#(and (<= main_a_x 87) (not (= main_x main_y))), 37200#(and (not (= main_x main_y)) (<= main_a_x 88)), 37201#(and (<= main_a_x 89) (not (= main_x main_y))), 37202#(and (not (= main_x main_y)) (<= main_a_x 90)), 37203#(and (<= main_a_x 91) (not (= main_x main_y))), 37204#(and (not (= main_x main_y)) (<= main_a_x 92)), 37205#(and (not (= main_x main_y)) (<= main_a_x 93)), 37206#(and (<= main_a_x 94) (not (= main_x main_y))), 37207#(and (<= main_a_x 95) (not (= main_x main_y))), 37208#(and (not (= main_x main_y)) (<= main_a_x 96)), 37209#(and (<= main_a_x 97) (not (= main_x main_y))), 37210#(and (not (= main_x main_y)) (<= main_a_x 98)), 37211#(and (<= main_a_x 99) (not (= main_x main_y))), 37212#(and (<= main_a_x 100) (not (= main_x main_y))), 37213#(and (not (= main_x main_y)) (<= main_a_x 101)), 37214#(and (not (= main_x main_y)) (<= main_a_x 102)), 37215#(and (not (= main_x main_y)) (<= main_a_x 103)), 37216#(and (<= main_a_x 104) (not (= main_x main_y))), 37217#(and (<= main_a_x 105) (not (= main_x main_y))), 37218#(and (not (= main_x main_y)) (<= main_a_x 106)), 37219#(and (not (= main_x main_y)) (<= main_a_x 107)), 37220#(and (not (= main_x main_y)) (<= main_a_x 108)), 37221#(and (not (= main_x main_y)) (<= main_a_x 109)), 37222#(and (<= main_a_x 110) (not (= main_x main_y))), 37223#(and (not (= main_x main_y)) (<= main_a_x 111)), 37224#(and (<= main_a_x 112) (not (= main_x main_y))), 37225#(and (<= main_a_x 113) (not (= main_x main_y))), 37226#(and (not (= main_x main_y)) (<= main_a_x 114)), 37227#(and (not (= main_x main_y)) (<= main_a_x 115)), 37228#(and (not (= main_x main_y)) (<= main_a_x 116)), 37229#(<= main_a_x 117), 37110#true, 37111#false, 37112#(and (not (= main_x main_y)) (<= main_a_x 0)), 37113#(and (not (= main_x main_y)) (<= main_a_x 1)), 37114#(and (not (= main_x main_y)) (<= main_a_x 2)), 37115#(and (not (= main_x main_y)) (<= main_a_x 3)), 37116#(and (<= main_a_x 4) (not (= main_x main_y))), 37117#(and (<= main_a_x 5) (not (= main_x main_y))), 37118#(and (not (= main_x main_y)) (<= main_a_x 6)), 37119#(and (<= main_a_x 7) (not (= main_x main_y)))] [2018-07-23 13:53:13,715 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 13:53:13,715 INFO L450 AbstractCegarLoop]: Interpolant automaton has 120 states [2018-07-23 13:53:13,716 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 120 interpolants. [2018-07-23 13:53:13,716 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7140, Invalid=7140, Unknown=0, NotChecked=0, Total=14280 [2018-07-23 13:53:13,717 INFO L87 Difference]: Start difference. First operand 121 states and 121 transitions. Second operand 120 states. [2018-07-23 13:53:13,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:13,909 INFO L93 Difference]: Finished difference Result 124 states and 124 transitions. [2018-07-23 13:53:13,909 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2018-07-23 13:53:13,909 INFO L78 Accepts]: Start accepts. Automaton has 120 states. Word has length 120 [2018-07-23 13:53:13,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:13,910 INFO L225 Difference]: With dead ends: 124 [2018-07-23 13:53:13,910 INFO L226 Difference]: Without dead ends: 122 [2018-07-23 13:53:13,911 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=7140, Invalid=7140, Unknown=0, NotChecked=0, Total=14280 [2018-07-23 13:53:13,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2018-07-23 13:53:13,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2018-07-23 13:53:13,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2018-07-23 13:53:13,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 122 transitions. [2018-07-23 13:53:13,917 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 122 transitions. Word has length 120 [2018-07-23 13:53:13,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:13,917 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 122 transitions. [2018-07-23 13:53:13,917 INFO L472 AbstractCegarLoop]: Interpolant automaton has 120 states. [2018-07-23 13:53:13,917 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 122 transitions. [2018-07-23 13:53:13,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2018-07-23 13:53:13,918 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:13,918 INFO L357 BasicCegarLoop]: trace histogram [118, 1, 1, 1] [2018-07-23 13:53:13,918 INFO L414 AbstractCegarLoop]: === Iteration 119 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:13,918 INFO L82 PathProgramCache]: Analyzing trace with hash -2130253620, now seen corresponding path program 118 times [2018-07-23 13:53:13,918 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:14,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:15,483 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 13:53:15,483 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:15,483 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [120] total 120 [2018-07-23 13:53:15,483 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:15,483 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 13:53:15,484 INFO L185 omatonBuilderFactory]: Interpolants [37722#true, 37723#false, 37724#(and (not (= main_x main_y)) (<= main_a_x 0)), 37725#(and (not (= main_x main_y)) (<= main_a_x 1)), 37726#(and (not (= main_x main_y)) (<= main_a_x 2)), 37727#(and (not (= main_x main_y)) (<= main_a_x 3)), 37728#(and (<= main_a_x 4) (not (= main_x main_y))), 37729#(and (<= main_a_x 5) (not (= main_x main_y))), 37730#(and (not (= main_x main_y)) (<= main_a_x 6)), 37731#(and (<= main_a_x 7) (not (= main_x main_y))), 37732#(and (not (= main_x main_y)) (<= main_a_x 8)), 37733#(and (not (= main_x main_y)) (<= main_a_x 9)), 37734#(and (<= main_a_x 10) (not (= main_x main_y))), 37735#(and (not (= main_x main_y)) (<= main_a_x 11)), 37736#(and (not (= main_x main_y)) (<= main_a_x 12)), 37737#(and (<= main_a_x 13) (not (= main_x main_y))), 37738#(and (not (= main_x main_y)) (<= main_a_x 14)), 37739#(and (<= main_a_x 15) (not (= main_x main_y))), 37740#(and (not (= main_x main_y)) (<= main_a_x 16)), 37741#(and (not (= main_x main_y)) (<= main_a_x 17)), 37742#(and (<= main_a_x 18) (not (= main_x main_y))), 37743#(and (<= main_a_x 19) (not (= main_x main_y))), 37744#(and (not (= main_x main_y)) (<= main_a_x 20)), 37745#(and (not (= main_x main_y)) (<= main_a_x 21)), 37746#(and (not (= main_x main_y)) (<= main_a_x 22)), 37747#(and (<= main_a_x 23) (not (= main_x main_y))), 37748#(and (not (= main_x main_y)) (<= main_a_x 24)), 37749#(and (<= main_a_x 25) (not (= main_x main_y))), 37750#(and (not (= main_x main_y)) (<= main_a_x 26)), 37751#(and (not (= main_x main_y)) (<= main_a_x 27)), 37752#(and (not (= main_x main_y)) (<= main_a_x 28)), 37753#(and (not (= main_x main_y)) (<= main_a_x 29)), 37754#(and (<= main_a_x 30) (not (= main_x main_y))), 37755#(and (<= main_a_x 31) (not (= main_x main_y))), 37756#(and (not (= main_x main_y)) (<= main_a_x 32)), 37757#(and (not (= main_x main_y)) (<= main_a_x 33)), 37758#(and (not (= main_x main_y)) (<= main_a_x 34)), 37759#(and (<= main_a_x 35) (not (= main_x main_y))), 37760#(and (not (= main_x main_y)) (<= main_a_x 36)), 37761#(and (<= main_a_x 37) (not (= main_x main_y))), 37762#(and (not (= main_x main_y)) (<= main_a_x 38)), 37763#(and (<= main_a_x 39) (not (= main_x main_y))), 37764#(and (<= main_a_x 40) (not (= main_x main_y))), 37765#(and (not (= main_x main_y)) (<= main_a_x 41)), 37766#(and (not (= main_x main_y)) (<= main_a_x 42)), 37767#(and (<= main_a_x 43) (not (= main_x main_y))), 37768#(and (<= main_a_x 44) (not (= main_x main_y))), 37769#(and (<= main_a_x 45) (not (= main_x main_y))), 37770#(and (<= main_a_x 46) (not (= main_x main_y))), 37771#(and (<= main_a_x 47) (not (= main_x main_y))), 37772#(and (<= main_a_x 48) (not (= main_x main_y))), 37773#(and (not (= main_x main_y)) (<= main_a_x 49)), 37774#(and (not (= main_x main_y)) (<= main_a_x 50)), 37775#(and (<= main_a_x 51) (not (= main_x main_y))), 37776#(and (not (= main_x main_y)) (<= main_a_x 52)), 37777#(and (<= main_a_x 53) (not (= main_x main_y))), 37778#(and (<= main_a_x 54) (not (= main_x main_y))), 37779#(and (not (= main_x main_y)) (<= main_a_x 55)), 37780#(and (not (= main_x main_y)) (<= main_a_x 56)), 37781#(and (not (= main_x main_y)) (<= main_a_x 57)), 37782#(and (not (= main_x main_y)) (<= main_a_x 58)), 37783#(and (not (= main_x main_y)) (<= main_a_x 59)), 37784#(and (<= main_a_x 60) (not (= main_x main_y))), 37785#(and (not (= main_x main_y)) (<= main_a_x 61)), 37786#(and (not (= main_x main_y)) (<= main_a_x 62)), 37787#(and (<= main_a_x 63) (not (= main_x main_y))), 37788#(and (<= main_a_x 64) (not (= main_x main_y))), 37789#(and (<= main_a_x 65) (not (= main_x main_y))), 37790#(and (<= main_a_x 66) (not (= main_x main_y))), 37791#(and (<= main_a_x 67) (not (= main_x main_y))), 37792#(and (not (= main_x main_y)) (<= main_a_x 68)), 37793#(and (<= main_a_x 69) (not (= main_x main_y))), 37794#(and (<= main_a_x 70) (not (= main_x main_y))), 37795#(and (<= main_a_x 71) (not (= main_x main_y))), 37796#(and (not (= main_x main_y)) (<= main_a_x 72)), 37797#(and (not (= main_x main_y)) (<= main_a_x 73)), 37798#(and (<= main_a_x 74) (not (= main_x main_y))), 37799#(and (<= main_a_x 75) (not (= main_x main_y))), 37800#(and (not (= main_x main_y)) (<= main_a_x 76)), 37801#(and (not (= main_x main_y)) (<= main_a_x 77)), 37802#(and (<= main_a_x 78) (not (= main_x main_y))), 37803#(and (<= main_a_x 79) (not (= main_x main_y))), 37804#(and (not (= main_x main_y)) (<= main_a_x 80)), 37805#(and (not (= main_x main_y)) (<= main_a_x 81)), 37806#(and (not (= main_x main_y)) (<= main_a_x 82)), 37807#(and (not (= main_x main_y)) (<= main_a_x 83)), 37808#(and (<= main_a_x 84) (not (= main_x main_y))), 37809#(and (not (= main_x main_y)) (<= main_a_x 85)), 37810#(and (not (= main_x main_y)) (<= main_a_x 86)), 37811#(and (<= main_a_x 87) (not (= main_x main_y))), 37812#(and (not (= main_x main_y)) (<= main_a_x 88)), 37813#(and (<= main_a_x 89) (not (= main_x main_y))), 37814#(and (not (= main_x main_y)) (<= main_a_x 90)), 37815#(and (<= main_a_x 91) (not (= main_x main_y))), 37816#(and (not (= main_x main_y)) (<= main_a_x 92)), 37817#(and (not (= main_x main_y)) (<= main_a_x 93)), 37818#(and (<= main_a_x 94) (not (= main_x main_y))), 37819#(and (<= main_a_x 95) (not (= main_x main_y))), 37820#(and (not (= main_x main_y)) (<= main_a_x 96)), 37821#(and (<= main_a_x 97) (not (= main_x main_y))), 37822#(and (not (= main_x main_y)) (<= main_a_x 98)), 37823#(and (<= main_a_x 99) (not (= main_x main_y))), 37824#(and (<= main_a_x 100) (not (= main_x main_y))), 37825#(and (not (= main_x main_y)) (<= main_a_x 101)), 37826#(and (not (= main_x main_y)) (<= main_a_x 102)), 37827#(and (not (= main_x main_y)) (<= main_a_x 103)), 37828#(and (<= main_a_x 104) (not (= main_x main_y))), 37829#(and (<= main_a_x 105) (not (= main_x main_y))), 37830#(and (not (= main_x main_y)) (<= main_a_x 106)), 37831#(and (not (= main_x main_y)) (<= main_a_x 107)), 37832#(and (not (= main_x main_y)) (<= main_a_x 108)), 37833#(and (not (= main_x main_y)) (<= main_a_x 109)), 37834#(and (<= main_a_x 110) (not (= main_x main_y))), 37835#(and (not (= main_x main_y)) (<= main_a_x 111)), 37836#(and (<= main_a_x 112) (not (= main_x main_y))), 37837#(and (<= main_a_x 113) (not (= main_x main_y))), 37838#(and (not (= main_x main_y)) (<= main_a_x 114)), 37839#(and (not (= main_x main_y)) (<= main_a_x 115)), 37840#(and (not (= main_x main_y)) (<= main_a_x 116)), 37841#(and (<= main_a_x 117) (not (= main_x main_y))), 37842#(<= main_a_x 118)] [2018-07-23 13:53:15,484 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 13:53:15,485 INFO L450 AbstractCegarLoop]: Interpolant automaton has 121 states [2018-07-23 13:53:15,486 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 121 interpolants. [2018-07-23 13:53:15,487 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7260, Invalid=7260, Unknown=0, NotChecked=0, Total=14520 [2018-07-23 13:53:15,487 INFO L87 Difference]: Start difference. First operand 122 states and 122 transitions. Second operand 121 states. [2018-07-23 13:53:15,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:15,657 INFO L93 Difference]: Finished difference Result 125 states and 125 transitions. [2018-07-23 13:53:15,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2018-07-23 13:53:15,657 INFO L78 Accepts]: Start accepts. Automaton has 121 states. Word has length 121 [2018-07-23 13:53:15,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:15,658 INFO L225 Difference]: With dead ends: 125 [2018-07-23 13:53:15,658 INFO L226 Difference]: Without dead ends: 123 [2018-07-23 13:53:15,659 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=7260, Invalid=7260, Unknown=0, NotChecked=0, Total=14520 [2018-07-23 13:53:15,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2018-07-23 13:53:15,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2018-07-23 13:53:15,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2018-07-23 13:53:15,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 123 transitions. [2018-07-23 13:53:15,663 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 123 transitions. Word has length 121 [2018-07-23 13:53:15,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:15,664 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 123 transitions. [2018-07-23 13:53:15,664 INFO L472 AbstractCegarLoop]: Interpolant automaton has 121 states. [2018-07-23 13:53:15,664 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 123 transitions. [2018-07-23 13:53:15,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2018-07-23 13:53:15,664 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:15,664 INFO L357 BasicCegarLoop]: trace histogram [119, 1, 1, 1] [2018-07-23 13:53:15,664 INFO L414 AbstractCegarLoop]: === Iteration 120 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:15,665 INFO L82 PathProgramCache]: Analyzing trace with hash -1613337401, now seen corresponding path program 119 times [2018-07-23 13:53:15,665 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:15,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:17,273 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 13:53:17,273 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:17,273 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [121] total 121 [2018-07-23 13:53:17,273 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:17,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:17,274 INFO L185 omatonBuilderFactory]: Interpolants [38400#(and (not (= main_x main_y)) (<= main_a_x 59)), 38401#(and (<= main_a_x 60) (not (= main_x main_y))), 38402#(and (not (= main_x main_y)) (<= main_a_x 61)), 38403#(and (not (= main_x main_y)) (<= main_a_x 62)), 38404#(and (<= main_a_x 63) (not (= main_x main_y))), 38405#(and (<= main_a_x 64) (not (= main_x main_y))), 38406#(and (<= main_a_x 65) (not (= main_x main_y))), 38407#(and (<= main_a_x 66) (not (= main_x main_y))), 38408#(and (<= main_a_x 67) (not (= main_x main_y))), 38409#(and (not (= main_x main_y)) (<= main_a_x 68)), 38410#(and (<= main_a_x 69) (not (= main_x main_y))), 38411#(and (<= main_a_x 70) (not (= main_x main_y))), 38412#(and (<= main_a_x 71) (not (= main_x main_y))), 38413#(and (not (= main_x main_y)) (<= main_a_x 72)), 38414#(and (not (= main_x main_y)) (<= main_a_x 73)), 38415#(and (<= main_a_x 74) (not (= main_x main_y))), 38416#(and (<= main_a_x 75) (not (= main_x main_y))), 38417#(and (not (= main_x main_y)) (<= main_a_x 76)), 38418#(and (not (= main_x main_y)) (<= main_a_x 77)), 38419#(and (<= main_a_x 78) (not (= main_x main_y))), 38420#(and (<= main_a_x 79) (not (= main_x main_y))), 38421#(and (not (= main_x main_y)) (<= main_a_x 80)), 38422#(and (not (= main_x main_y)) (<= main_a_x 81)), 38423#(and (not (= main_x main_y)) (<= main_a_x 82)), 38424#(and (not (= main_x main_y)) (<= main_a_x 83)), 38425#(and (<= main_a_x 84) (not (= main_x main_y))), 38426#(and (not (= main_x main_y)) (<= main_a_x 85)), 38427#(and (not (= main_x main_y)) (<= main_a_x 86)), 38428#(and (<= main_a_x 87) (not (= main_x main_y))), 38429#(and (not (= main_x main_y)) (<= main_a_x 88)), 38430#(and (<= main_a_x 89) (not (= main_x main_y))), 38431#(and (not (= main_x main_y)) (<= main_a_x 90)), 38432#(and (<= main_a_x 91) (not (= main_x main_y))), 38433#(and (not (= main_x main_y)) (<= main_a_x 92)), 38434#(and (not (= main_x main_y)) (<= main_a_x 93)), 38435#(and (<= main_a_x 94) (not (= main_x main_y))), 38436#(and (<= main_a_x 95) (not (= main_x main_y))), 38437#(and (not (= main_x main_y)) (<= main_a_x 96)), 38438#(and (<= main_a_x 97) (not (= main_x main_y))), 38439#(and (not (= main_x main_y)) (<= main_a_x 98)), 38440#(and (<= main_a_x 99) (not (= main_x main_y))), 38441#(and (<= main_a_x 100) (not (= main_x main_y))), 38442#(and (not (= main_x main_y)) (<= main_a_x 101)), 38443#(and (not (= main_x main_y)) (<= main_a_x 102)), 38444#(and (not (= main_x main_y)) (<= main_a_x 103)), 38445#(and (<= main_a_x 104) (not (= main_x main_y))), 38446#(and (<= main_a_x 105) (not (= main_x main_y))), 38447#(and (not (= main_x main_y)) (<= main_a_x 106)), 38448#(and (not (= main_x main_y)) (<= main_a_x 107)), 38449#(and (not (= main_x main_y)) (<= main_a_x 108)), 38450#(and (not (= main_x main_y)) (<= main_a_x 109)), 38451#(and (<= main_a_x 110) (not (= main_x main_y))), 38452#(and (not (= main_x main_y)) (<= main_a_x 111)), 38453#(and (<= main_a_x 112) (not (= main_x main_y))), 38454#(and (<= main_a_x 113) (not (= main_x main_y))), 38455#(and (not (= main_x main_y)) (<= main_a_x 114)), 38456#(and (not (= main_x main_y)) (<= main_a_x 115)), 38457#(and (not (= main_x main_y)) (<= main_a_x 116)), 38458#(and (<= main_a_x 117) (not (= main_x main_y))), 38459#(and (not (= main_x main_y)) (<= main_a_x 118)), 38460#(<= main_a_x 119), 38339#true, 38340#false, 38341#(and (not (= main_x main_y)) (<= main_a_x 0)), 38342#(and (not (= main_x main_y)) (<= main_a_x 1)), 38343#(and (not (= main_x main_y)) (<= main_a_x 2)), 38344#(and (not (= main_x main_y)) (<= main_a_x 3)), 38345#(and (<= main_a_x 4) (not (= main_x main_y))), 38346#(and (<= main_a_x 5) (not (= main_x main_y))), 38347#(and (not (= main_x main_y)) (<= main_a_x 6)), 38348#(and (<= main_a_x 7) (not (= main_x main_y))), 38349#(and (not (= main_x main_y)) (<= main_a_x 8)), 38350#(and (not (= main_x main_y)) (<= main_a_x 9)), 38351#(and (<= main_a_x 10) (not (= main_x main_y))), 38352#(and (not (= main_x main_y)) (<= main_a_x 11)), 38353#(and (not (= main_x main_y)) (<= main_a_x 12)), 38354#(and (<= main_a_x 13) (not (= main_x main_y))), 38355#(and (not (= main_x main_y)) (<= main_a_x 14)), 38356#(and (<= main_a_x 15) (not (= main_x main_y))), 38357#(and (not (= main_x main_y)) (<= main_a_x 16)), 38358#(and (not (= main_x main_y)) (<= main_a_x 17)), 38359#(and (<= main_a_x 18) (not (= main_x main_y))), 38360#(and (<= main_a_x 19) (not (= main_x main_y))), 38361#(and (not (= main_x main_y)) (<= main_a_x 20)), 38362#(and (not (= main_x main_y)) (<= main_a_x 21)), 38363#(and (not (= main_x main_y)) (<= main_a_x 22)), 38364#(and (<= main_a_x 23) (not (= main_x main_y))), 38365#(and (not (= main_x main_y)) (<= main_a_x 24)), 38366#(and (<= main_a_x 25) (not (= main_x main_y))), 38367#(and (not (= main_x main_y)) (<= main_a_x 26)), 38368#(and (not (= main_x main_y)) (<= main_a_x 27)), 38369#(and (not (= main_x main_y)) (<= main_a_x 28)), 38370#(and (not (= main_x main_y)) (<= main_a_x 29)), 38371#(and (<= main_a_x 30) (not (= main_x main_y))), 38372#(and (<= main_a_x 31) (not (= main_x main_y))), 38373#(and (not (= main_x main_y)) (<= main_a_x 32)), 38374#(and (not (= main_x main_y)) (<= main_a_x 33)), 38375#(and (not (= main_x main_y)) (<= main_a_x 34)), 38376#(and (<= main_a_x 35) (not (= main_x main_y))), 38377#(and (not (= main_x main_y)) (<= main_a_x 36)), 38378#(and (<= main_a_x 37) (not (= main_x main_y))), 38379#(and (not (= main_x main_y)) (<= main_a_x 38)), 38380#(and (<= main_a_x 39) (not (= main_x main_y))), 38381#(and (<= main_a_x 40) (not (= main_x main_y))), 38382#(and (not (= main_x main_y)) (<= main_a_x 41)), 38383#(and (not (= main_x main_y)) (<= main_a_x 42)), 38384#(and (<= main_a_x 43) (not (= main_x main_y))), 38385#(and (<= main_a_x 44) (not (= main_x main_y))), 38386#(and (<= main_a_x 45) (not (= main_x main_y))), 38387#(and (<= main_a_x 46) (not (= main_x main_y))), 38388#(and (<= main_a_x 47) (not (= main_x main_y))), 38389#(and (<= main_a_x 48) (not (= main_x main_y))), 38390#(and (not (= main_x main_y)) (<= main_a_x 49)), 38391#(and (not (= main_x main_y)) (<= main_a_x 50)), 38392#(and (<= main_a_x 51) (not (= main_x main_y))), 38393#(and (not (= main_x main_y)) (<= main_a_x 52)), 38394#(and (<= main_a_x 53) (not (= main_x main_y))), 38395#(and (<= main_a_x 54) (not (= main_x main_y))), 38396#(and (not (= main_x main_y)) (<= main_a_x 55)), 38397#(and (not (= main_x main_y)) (<= main_a_x 56)), 38398#(and (not (= main_x main_y)) (<= main_a_x 57)), 38399#(and (not (= main_x main_y)) (<= main_a_x 58))] [2018-07-23 13:53:17,275 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 13:53:17,275 INFO L450 AbstractCegarLoop]: Interpolant automaton has 122 states [2018-07-23 13:53:17,276 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 122 interpolants. [2018-07-23 13:53:17,277 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7381, Invalid=7381, Unknown=0, NotChecked=0, Total=14762 [2018-07-23 13:53:17,277 INFO L87 Difference]: Start difference. First operand 123 states and 123 transitions. Second operand 122 states. [2018-07-23 13:53:17,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:17,409 INFO L93 Difference]: Finished difference Result 126 states and 126 transitions. [2018-07-23 13:53:17,409 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2018-07-23 13:53:17,409 INFO L78 Accepts]: Start accepts. Automaton has 122 states. Word has length 122 [2018-07-23 13:53:17,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:17,409 INFO L225 Difference]: With dead ends: 126 [2018-07-23 13:53:17,410 INFO L226 Difference]: Without dead ends: 124 [2018-07-23 13:53:17,411 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=7381, Invalid=7381, Unknown=0, NotChecked=0, Total=14762 [2018-07-23 13:53:17,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2018-07-23 13:53:17,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2018-07-23 13:53:17,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2018-07-23 13:53:17,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 124 transitions. [2018-07-23 13:53:17,416 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 124 transitions. Word has length 122 [2018-07-23 13:53:17,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:17,417 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 124 transitions. [2018-07-23 13:53:17,417 INFO L472 AbstractCegarLoop]: Interpolant automaton has 122 states. [2018-07-23 13:53:17,417 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 124 transitions. [2018-07-23 13:53:17,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-07-23 13:53:17,417 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:17,417 INFO L357 BasicCegarLoop]: trace histogram [120, 1, 1, 1] [2018-07-23 13:53:17,418 INFO L414 AbstractCegarLoop]: === Iteration 121 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:17,418 INFO L82 PathProgramCache]: Analyzing trace with hash 1526163500, now seen corresponding path program 120 times [2018-07-23 13:53:17,418 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:17,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:18,799 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 13:53:18,799 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:18,799 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [122] total 122 [2018-07-23 13:53:18,799 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:18,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:18,800 INFO L185 omatonBuilderFactory]: Interpolants [38961#true, 38962#false, 38963#(and (not (= main_x main_y)) (<= main_a_x 0)), 38964#(and (not (= main_x main_y)) (<= main_a_x 1)), 38965#(and (not (= main_x main_y)) (<= main_a_x 2)), 38966#(and (not (= main_x main_y)) (<= main_a_x 3)), 38967#(and (<= main_a_x 4) (not (= main_x main_y))), 38968#(and (<= main_a_x 5) (not (= main_x main_y))), 38969#(and (not (= main_x main_y)) (<= main_a_x 6)), 38970#(and (<= main_a_x 7) (not (= main_x main_y))), 38971#(and (not (= main_x main_y)) (<= main_a_x 8)), 38972#(and (not (= main_x main_y)) (<= main_a_x 9)), 38973#(and (<= main_a_x 10) (not (= main_x main_y))), 38974#(and (not (= main_x main_y)) (<= main_a_x 11)), 38975#(and (not (= main_x main_y)) (<= main_a_x 12)), 38976#(and (<= main_a_x 13) (not (= main_x main_y))), 38977#(and (not (= main_x main_y)) (<= main_a_x 14)), 38978#(and (<= main_a_x 15) (not (= main_x main_y))), 38979#(and (not (= main_x main_y)) (<= main_a_x 16)), 38980#(and (not (= main_x main_y)) (<= main_a_x 17)), 38981#(and (<= main_a_x 18) (not (= main_x main_y))), 38982#(and (<= main_a_x 19) (not (= main_x main_y))), 38983#(and (not (= main_x main_y)) (<= main_a_x 20)), 38984#(and (not (= main_x main_y)) (<= main_a_x 21)), 38985#(and (not (= main_x main_y)) (<= main_a_x 22)), 38986#(and (<= main_a_x 23) (not (= main_x main_y))), 38987#(and (not (= main_x main_y)) (<= main_a_x 24)), 38988#(and (<= main_a_x 25) (not (= main_x main_y))), 38989#(and (not (= main_x main_y)) (<= main_a_x 26)), 38990#(and (not (= main_x main_y)) (<= main_a_x 27)), 38991#(and (not (= main_x main_y)) (<= main_a_x 28)), 38992#(and (not (= main_x main_y)) (<= main_a_x 29)), 38993#(and (<= main_a_x 30) (not (= main_x main_y))), 38994#(and (<= main_a_x 31) (not (= main_x main_y))), 38995#(and (not (= main_x main_y)) (<= main_a_x 32)), 38996#(and (not (= main_x main_y)) (<= main_a_x 33)), 38997#(and (not (= main_x main_y)) (<= main_a_x 34)), 38998#(and (<= main_a_x 35) (not (= main_x main_y))), 38999#(and (not (= main_x main_y)) (<= main_a_x 36)), 39000#(and (<= main_a_x 37) (not (= main_x main_y))), 39001#(and (not (= main_x main_y)) (<= main_a_x 38)), 39002#(and (<= main_a_x 39) (not (= main_x main_y))), 39003#(and (<= main_a_x 40) (not (= main_x main_y))), 39004#(and (not (= main_x main_y)) (<= main_a_x 41)), 39005#(and (not (= main_x main_y)) (<= main_a_x 42)), 39006#(and (<= main_a_x 43) (not (= main_x main_y))), 39007#(and (<= main_a_x 44) (not (= main_x main_y))), 39008#(and (<= main_a_x 45) (not (= main_x main_y))), 39009#(and (<= main_a_x 46) (not (= main_x main_y))), 39010#(and (<= main_a_x 47) (not (= main_x main_y))), 39011#(and (<= main_a_x 48) (not (= main_x main_y))), 39012#(and (not (= main_x main_y)) (<= main_a_x 49)), 39013#(and (not (= main_x main_y)) (<= main_a_x 50)), 39014#(and (<= main_a_x 51) (not (= main_x main_y))), 39015#(and (not (= main_x main_y)) (<= main_a_x 52)), 39016#(and (<= main_a_x 53) (not (= main_x main_y))), 39017#(and (<= main_a_x 54) (not (= main_x main_y))), 39018#(and (not (= main_x main_y)) (<= main_a_x 55)), 39019#(and (not (= main_x main_y)) (<= main_a_x 56)), 39020#(and (not (= main_x main_y)) (<= main_a_x 57)), 39021#(and (not (= main_x main_y)) (<= main_a_x 58)), 39022#(and (not (= main_x main_y)) (<= main_a_x 59)), 39023#(and (<= main_a_x 60) (not (= main_x main_y))), 39024#(and (not (= main_x main_y)) (<= main_a_x 61)), 39025#(and (not (= main_x main_y)) (<= main_a_x 62)), 39026#(and (<= main_a_x 63) (not (= main_x main_y))), 39027#(and (<= main_a_x 64) (not (= main_x main_y))), 39028#(and (<= main_a_x 65) (not (= main_x main_y))), 39029#(and (<= main_a_x 66) (not (= main_x main_y))), 39030#(and (<= main_a_x 67) (not (= main_x main_y))), 39031#(and (not (= main_x main_y)) (<= main_a_x 68)), 39032#(and (<= main_a_x 69) (not (= main_x main_y))), 39033#(and (<= main_a_x 70) (not (= main_x main_y))), 39034#(and (<= main_a_x 71) (not (= main_x main_y))), 39035#(and (not (= main_x main_y)) (<= main_a_x 72)), 39036#(and (not (= main_x main_y)) (<= main_a_x 73)), 39037#(and (<= main_a_x 74) (not (= main_x main_y))), 39038#(and (<= main_a_x 75) (not (= main_x main_y))), 39039#(and (not (= main_x main_y)) (<= main_a_x 76)), 39040#(and (not (= main_x main_y)) (<= main_a_x 77)), 39041#(and (<= main_a_x 78) (not (= main_x main_y))), 39042#(and (<= main_a_x 79) (not (= main_x main_y))), 39043#(and (not (= main_x main_y)) (<= main_a_x 80)), 39044#(and (not (= main_x main_y)) (<= main_a_x 81)), 39045#(and (not (= main_x main_y)) (<= main_a_x 82)), 39046#(and (not (= main_x main_y)) (<= main_a_x 83)), 39047#(and (<= main_a_x 84) (not (= main_x main_y))), 39048#(and (not (= main_x main_y)) (<= main_a_x 85)), 39049#(and (not (= main_x main_y)) (<= main_a_x 86)), 39050#(and (<= main_a_x 87) (not (= main_x main_y))), 39051#(and (not (= main_x main_y)) (<= main_a_x 88)), 39052#(and (<= main_a_x 89) (not (= main_x main_y))), 39053#(and (not (= main_x main_y)) (<= main_a_x 90)), 39054#(and (<= main_a_x 91) (not (= main_x main_y))), 39055#(and (not (= main_x main_y)) (<= main_a_x 92)), 39056#(and (not (= main_x main_y)) (<= main_a_x 93)), 39057#(and (<= main_a_x 94) (not (= main_x main_y))), 39058#(and (<= main_a_x 95) (not (= main_x main_y))), 39059#(and (not (= main_x main_y)) (<= main_a_x 96)), 39060#(and (<= main_a_x 97) (not (= main_x main_y))), 39061#(and (not (= main_x main_y)) (<= main_a_x 98)), 39062#(and (<= main_a_x 99) (not (= main_x main_y))), 39063#(and (<= main_a_x 100) (not (= main_x main_y))), 39064#(and (not (= main_x main_y)) (<= main_a_x 101)), 39065#(and (not (= main_x main_y)) (<= main_a_x 102)), 39066#(and (not (= main_x main_y)) (<= main_a_x 103)), 39067#(and (<= main_a_x 104) (not (= main_x main_y))), 39068#(and (<= main_a_x 105) (not (= main_x main_y))), 39069#(and (not (= main_x main_y)) (<= main_a_x 106)), 39070#(and (not (= main_x main_y)) (<= main_a_x 107)), 39071#(and (not (= main_x main_y)) (<= main_a_x 108)), 39072#(and (not (= main_x main_y)) (<= main_a_x 109)), 39073#(and (<= main_a_x 110) (not (= main_x main_y))), 39074#(and (not (= main_x main_y)) (<= main_a_x 111)), 39075#(and (<= main_a_x 112) (not (= main_x main_y))), 39076#(and (<= main_a_x 113) (not (= main_x main_y))), 39077#(and (not (= main_x main_y)) (<= main_a_x 114)), 39078#(and (not (= main_x main_y)) (<= main_a_x 115)), 39079#(and (not (= main_x main_y)) (<= main_a_x 116)), 39080#(and (<= main_a_x 117) (not (= main_x main_y))), 39081#(and (not (= main_x main_y)) (<= main_a_x 118)), 39082#(and (not (= main_x main_y)) (<= main_a_x 119)), 39083#(<= main_a_x 120)] [2018-07-23 13:53:18,800 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 13:53:18,801 INFO L450 AbstractCegarLoop]: Interpolant automaton has 123 states [2018-07-23 13:53:18,802 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 123 interpolants. [2018-07-23 13:53:18,803 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7503, Invalid=7503, Unknown=0, NotChecked=0, Total=15006 [2018-07-23 13:53:18,803 INFO L87 Difference]: Start difference. First operand 124 states and 124 transitions. Second operand 123 states. [2018-07-23 13:53:18,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:18,954 INFO L93 Difference]: Finished difference Result 127 states and 127 transitions. [2018-07-23 13:53:18,954 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2018-07-23 13:53:18,954 INFO L78 Accepts]: Start accepts. Automaton has 123 states. Word has length 123 [2018-07-23 13:53:18,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:18,955 INFO L225 Difference]: With dead ends: 127 [2018-07-23 13:53:18,955 INFO L226 Difference]: Without dead ends: 125 [2018-07-23 13:53:18,956 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=7503, Invalid=7503, Unknown=0, NotChecked=0, Total=15006 [2018-07-23 13:53:18,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2018-07-23 13:53:18,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2018-07-23 13:53:18,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2018-07-23 13:53:18,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 125 transitions. [2018-07-23 13:53:18,961 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 125 transitions. Word has length 123 [2018-07-23 13:53:18,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:18,961 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 125 transitions. [2018-07-23 13:53:18,961 INFO L472 AbstractCegarLoop]: Interpolant automaton has 123 states. [2018-07-23 13:53:18,961 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 125 transitions. [2018-07-23 13:53:18,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-07-23 13:53:18,962 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:18,962 INFO L357 BasicCegarLoop]: trace histogram [121, 1, 1, 1] [2018-07-23 13:53:18,962 INFO L414 AbstractCegarLoop]: === Iteration 122 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:18,962 INFO L82 PathProgramCache]: Analyzing trace with hash 66443623, now seen corresponding path program 121 times [2018-07-23 13:53:18,962 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:19,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:20,556 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 13:53:20,557 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:20,557 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [123] total 123 [2018-07-23 13:53:20,557 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:20,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:20,557 INFO L185 omatonBuilderFactory]: Interpolants [39680#(and (not (= main_x main_y)) (<= main_a_x 90)), 39681#(and (<= main_a_x 91) (not (= main_x main_y))), 39682#(and (not (= main_x main_y)) (<= main_a_x 92)), 39683#(and (not (= main_x main_y)) (<= main_a_x 93)), 39684#(and (<= main_a_x 94) (not (= main_x main_y))), 39685#(and (<= main_a_x 95) (not (= main_x main_y))), 39686#(and (not (= main_x main_y)) (<= main_a_x 96)), 39687#(and (<= main_a_x 97) (not (= main_x main_y))), 39688#(and (not (= main_x main_y)) (<= main_a_x 98)), 39689#(and (<= main_a_x 99) (not (= main_x main_y))), 39690#(and (<= main_a_x 100) (not (= main_x main_y))), 39691#(and (not (= main_x main_y)) (<= main_a_x 101)), 39692#(and (not (= main_x main_y)) (<= main_a_x 102)), 39693#(and (not (= main_x main_y)) (<= main_a_x 103)), 39694#(and (<= main_a_x 104) (not (= main_x main_y))), 39695#(and (<= main_a_x 105) (not (= main_x main_y))), 39696#(and (not (= main_x main_y)) (<= main_a_x 106)), 39697#(and (not (= main_x main_y)) (<= main_a_x 107)), 39698#(and (not (= main_x main_y)) (<= main_a_x 108)), 39699#(and (not (= main_x main_y)) (<= main_a_x 109)), 39700#(and (<= main_a_x 110) (not (= main_x main_y))), 39701#(and (not (= main_x main_y)) (<= main_a_x 111)), 39702#(and (<= main_a_x 112) (not (= main_x main_y))), 39703#(and (<= main_a_x 113) (not (= main_x main_y))), 39704#(and (not (= main_x main_y)) (<= main_a_x 114)), 39705#(and (not (= main_x main_y)) (<= main_a_x 115)), 39706#(and (not (= main_x main_y)) (<= main_a_x 116)), 39707#(and (<= main_a_x 117) (not (= main_x main_y))), 39708#(and (not (= main_x main_y)) (<= main_a_x 118)), 39709#(and (not (= main_x main_y)) (<= main_a_x 119)), 39710#(and (not (= main_x main_y)) (<= main_a_x 120)), 39711#(<= main_a_x 121), 39588#true, 39589#false, 39590#(and (not (= main_x main_y)) (<= main_a_x 0)), 39591#(and (not (= main_x main_y)) (<= main_a_x 1)), 39592#(and (not (= main_x main_y)) (<= main_a_x 2)), 39593#(and (not (= main_x main_y)) (<= main_a_x 3)), 39594#(and (<= main_a_x 4) (not (= main_x main_y))), 39595#(and (<= main_a_x 5) (not (= main_x main_y))), 39596#(and (not (= main_x main_y)) (<= main_a_x 6)), 39597#(and (<= main_a_x 7) (not (= main_x main_y))), 39598#(and (not (= main_x main_y)) (<= main_a_x 8)), 39599#(and (not (= main_x main_y)) (<= main_a_x 9)), 39600#(and (<= main_a_x 10) (not (= main_x main_y))), 39601#(and (not (= main_x main_y)) (<= main_a_x 11)), 39602#(and (not (= main_x main_y)) (<= main_a_x 12)), 39603#(and (<= main_a_x 13) (not (= main_x main_y))), 39604#(and (not (= main_x main_y)) (<= main_a_x 14)), 39605#(and (<= main_a_x 15) (not (= main_x main_y))), 39606#(and (not (= main_x main_y)) (<= main_a_x 16)), 39607#(and (not (= main_x main_y)) (<= main_a_x 17)), 39608#(and (<= main_a_x 18) (not (= main_x main_y))), 39609#(and (<= main_a_x 19) (not (= main_x main_y))), 39610#(and (not (= main_x main_y)) (<= main_a_x 20)), 39611#(and (not (= main_x main_y)) (<= main_a_x 21)), 39612#(and (not (= main_x main_y)) (<= main_a_x 22)), 39613#(and (<= main_a_x 23) (not (= main_x main_y))), 39614#(and (not (= main_x main_y)) (<= main_a_x 24)), 39615#(and (<= main_a_x 25) (not (= main_x main_y))), 39616#(and (not (= main_x main_y)) (<= main_a_x 26)), 39617#(and (not (= main_x main_y)) (<= main_a_x 27)), 39618#(and (not (= main_x main_y)) (<= main_a_x 28)), 39619#(and (not (= main_x main_y)) (<= main_a_x 29)), 39620#(and (<= main_a_x 30) (not (= main_x main_y))), 39621#(and (<= main_a_x 31) (not (= main_x main_y))), 39622#(and (not (= main_x main_y)) (<= main_a_x 32)), 39623#(and (not (= main_x main_y)) (<= main_a_x 33)), 39624#(and (not (= main_x main_y)) (<= main_a_x 34)), 39625#(and (<= main_a_x 35) (not (= main_x main_y))), 39626#(and (not (= main_x main_y)) (<= main_a_x 36)), 39627#(and (<= main_a_x 37) (not (= main_x main_y))), 39628#(and (not (= main_x main_y)) (<= main_a_x 38)), 39629#(and (<= main_a_x 39) (not (= main_x main_y))), 39630#(and (<= main_a_x 40) (not (= main_x main_y))), 39631#(and (not (= main_x main_y)) (<= main_a_x 41)), 39632#(and (not (= main_x main_y)) (<= main_a_x 42)), 39633#(and (<= main_a_x 43) (not (= main_x main_y))), 39634#(and (<= main_a_x 44) (not (= main_x main_y))), 39635#(and (<= main_a_x 45) (not (= main_x main_y))), 39636#(and (<= main_a_x 46) (not (= main_x main_y))), 39637#(and (<= main_a_x 47) (not (= main_x main_y))), 39638#(and (<= main_a_x 48) (not (= main_x main_y))), 39639#(and (not (= main_x main_y)) (<= main_a_x 49)), 39640#(and (not (= main_x main_y)) (<= main_a_x 50)), 39641#(and (<= main_a_x 51) (not (= main_x main_y))), 39642#(and (not (= main_x main_y)) (<= main_a_x 52)), 39643#(and (<= main_a_x 53) (not (= main_x main_y))), 39644#(and (<= main_a_x 54) (not (= main_x main_y))), 39645#(and (not (= main_x main_y)) (<= main_a_x 55)), 39646#(and (not (= main_x main_y)) (<= main_a_x 56)), 39647#(and (not (= main_x main_y)) (<= main_a_x 57)), 39648#(and (not (= main_x main_y)) (<= main_a_x 58)), 39649#(and (not (= main_x main_y)) (<= main_a_x 59)), 39650#(and (<= main_a_x 60) (not (= main_x main_y))), 39651#(and (not (= main_x main_y)) (<= main_a_x 61)), 39652#(and (not (= main_x main_y)) (<= main_a_x 62)), 39653#(and (<= main_a_x 63) (not (= main_x main_y))), 39654#(and (<= main_a_x 64) (not (= main_x main_y))), 39655#(and (<= main_a_x 65) (not (= main_x main_y))), 39656#(and (<= main_a_x 66) (not (= main_x main_y))), 39657#(and (<= main_a_x 67) (not (= main_x main_y))), 39658#(and (not (= main_x main_y)) (<= main_a_x 68)), 39659#(and (<= main_a_x 69) (not (= main_x main_y))), 39660#(and (<= main_a_x 70) (not (= main_x main_y))), 39661#(and (<= main_a_x 71) (not (= main_x main_y))), 39662#(and (not (= main_x main_y)) (<= main_a_x 72)), 39663#(and (not (= main_x main_y)) (<= main_a_x 73)), 39664#(and (<= main_a_x 74) (not (= main_x main_y))), 39665#(and (<= main_a_x 75) (not (= main_x main_y))), 39666#(and (not (= main_x main_y)) (<= main_a_x 76)), 39667#(and (not (= main_x main_y)) (<= main_a_x 77)), 39668#(and (<= main_a_x 78) (not (= main_x main_y))), 39669#(and (<= main_a_x 79) (not (= main_x main_y))), 39670#(and (not (= main_x main_y)) (<= main_a_x 80)), 39671#(and (not (= main_x main_y)) (<= main_a_x 81)), 39672#(and (not (= main_x main_y)) (<= main_a_x 82)), 39673#(and (not (= main_x main_y)) (<= main_a_x 83)), 39674#(and (<= main_a_x 84) (not (= main_x main_y))), 39675#(and (not (= main_x main_y)) (<= main_a_x 85)), 39676#(and (not (= main_x main_y)) (<= main_a_x 86)), 39677#(and (<= main_a_x 87) (not (= main_x main_y))), 39678#(and (not (= main_x main_y)) (<= main_a_x 88)), 39679#(and (<= main_a_x 89) (not (= main_x main_y)))] [2018-07-23 13:53:20,558 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 13:53:20,558 INFO L450 AbstractCegarLoop]: Interpolant automaton has 124 states [2018-07-23 13:53:20,559 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 124 interpolants. [2018-07-23 13:53:20,560 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7626, Invalid=7626, Unknown=0, NotChecked=0, Total=15252 [2018-07-23 13:53:20,560 INFO L87 Difference]: Start difference. First operand 125 states and 125 transitions. Second operand 124 states. [2018-07-23 13:53:20,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:20,660 INFO L93 Difference]: Finished difference Result 128 states and 128 transitions. [2018-07-23 13:53:20,660 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2018-07-23 13:53:20,661 INFO L78 Accepts]: Start accepts. Automaton has 124 states. Word has length 124 [2018-07-23 13:53:20,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:20,661 INFO L225 Difference]: With dead ends: 128 [2018-07-23 13:53:20,661 INFO L226 Difference]: Without dead ends: 126 [2018-07-23 13:53:20,662 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=7626, Invalid=7626, Unknown=0, NotChecked=0, Total=15252 [2018-07-23 13:53:20,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2018-07-23 13:53:20,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2018-07-23 13:53:20,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2018-07-23 13:53:20,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 126 transitions. [2018-07-23 13:53:20,666 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 126 transitions. Word has length 124 [2018-07-23 13:53:20,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:20,666 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 126 transitions. [2018-07-23 13:53:20,666 INFO L472 AbstractCegarLoop]: Interpolant automaton has 124 states. [2018-07-23 13:53:20,666 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 126 transitions. [2018-07-23 13:53:20,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-07-23 13:53:20,667 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:20,667 INFO L357 BasicCegarLoop]: trace histogram [122, 1, 1, 1] [2018-07-23 13:53:20,667 INFO L414 AbstractCegarLoop]: === Iteration 123 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:20,667 INFO L82 PathProgramCache]: Analyzing trace with hash 2059767692, now seen corresponding path program 122 times [2018-07-23 13:53:20,667 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:20,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:22,395 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 13:53:22,396 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:22,396 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [124] total 124 [2018-07-23 13:53:22,396 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:22,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:22,396 INFO L185 omatonBuilderFactory]: Interpolants [40220#true, 40221#false, 40222#(and (not (= main_x main_y)) (<= main_a_x 0)), 40223#(and (not (= main_x main_y)) (<= main_a_x 1)), 40224#(and (not (= main_x main_y)) (<= main_a_x 2)), 40225#(and (not (= main_x main_y)) (<= main_a_x 3)), 40226#(and (<= main_a_x 4) (not (= main_x main_y))), 40227#(and (<= main_a_x 5) (not (= main_x main_y))), 40228#(and (not (= main_x main_y)) (<= main_a_x 6)), 40229#(and (<= main_a_x 7) (not (= main_x main_y))), 40230#(and (not (= main_x main_y)) (<= main_a_x 8)), 40231#(and (not (= main_x main_y)) (<= main_a_x 9)), 40232#(and (<= main_a_x 10) (not (= main_x main_y))), 40233#(and (not (= main_x main_y)) (<= main_a_x 11)), 40234#(and (not (= main_x main_y)) (<= main_a_x 12)), 40235#(and (<= main_a_x 13) (not (= main_x main_y))), 40236#(and (not (= main_x main_y)) (<= main_a_x 14)), 40237#(and (<= main_a_x 15) (not (= main_x main_y))), 40238#(and (not (= main_x main_y)) (<= main_a_x 16)), 40239#(and (not (= main_x main_y)) (<= main_a_x 17)), 40240#(and (<= main_a_x 18) (not (= main_x main_y))), 40241#(and (<= main_a_x 19) (not (= main_x main_y))), 40242#(and (not (= main_x main_y)) (<= main_a_x 20)), 40243#(and (not (= main_x main_y)) (<= main_a_x 21)), 40244#(and (not (= main_x main_y)) (<= main_a_x 22)), 40245#(and (<= main_a_x 23) (not (= main_x main_y))), 40246#(and (not (= main_x main_y)) (<= main_a_x 24)), 40247#(and (<= main_a_x 25) (not (= main_x main_y))), 40248#(and (not (= main_x main_y)) (<= main_a_x 26)), 40249#(and (not (= main_x main_y)) (<= main_a_x 27)), 40250#(and (not (= main_x main_y)) (<= main_a_x 28)), 40251#(and (not (= main_x main_y)) (<= main_a_x 29)), 40252#(and (<= main_a_x 30) (not (= main_x main_y))), 40253#(and (<= main_a_x 31) (not (= main_x main_y))), 40254#(and (not (= main_x main_y)) (<= main_a_x 32)), 40255#(and (not (= main_x main_y)) (<= main_a_x 33)), 40256#(and (not (= main_x main_y)) (<= main_a_x 34)), 40257#(and (<= main_a_x 35) (not (= main_x main_y))), 40258#(and (not (= main_x main_y)) (<= main_a_x 36)), 40259#(and (<= main_a_x 37) (not (= main_x main_y))), 40260#(and (not (= main_x main_y)) (<= main_a_x 38)), 40261#(and (<= main_a_x 39) (not (= main_x main_y))), 40262#(and (<= main_a_x 40) (not (= main_x main_y))), 40263#(and (not (= main_x main_y)) (<= main_a_x 41)), 40264#(and (not (= main_x main_y)) (<= main_a_x 42)), 40265#(and (<= main_a_x 43) (not (= main_x main_y))), 40266#(and (<= main_a_x 44) (not (= main_x main_y))), 40267#(and (<= main_a_x 45) (not (= main_x main_y))), 40268#(and (<= main_a_x 46) (not (= main_x main_y))), 40269#(and (<= main_a_x 47) (not (= main_x main_y))), 40270#(and (<= main_a_x 48) (not (= main_x main_y))), 40271#(and (not (= main_x main_y)) (<= main_a_x 49)), 40272#(and (not (= main_x main_y)) (<= main_a_x 50)), 40273#(and (<= main_a_x 51) (not (= main_x main_y))), 40274#(and (not (= main_x main_y)) (<= main_a_x 52)), 40275#(and (<= main_a_x 53) (not (= main_x main_y))), 40276#(and (<= main_a_x 54) (not (= main_x main_y))), 40277#(and (not (= main_x main_y)) (<= main_a_x 55)), 40278#(and (not (= main_x main_y)) (<= main_a_x 56)), 40279#(and (not (= main_x main_y)) (<= main_a_x 57)), 40280#(and (not (= main_x main_y)) (<= main_a_x 58)), 40281#(and (not (= main_x main_y)) (<= main_a_x 59)), 40282#(and (<= main_a_x 60) (not (= main_x main_y))), 40283#(and (not (= main_x main_y)) (<= main_a_x 61)), 40284#(and (not (= main_x main_y)) (<= main_a_x 62)), 40285#(and (<= main_a_x 63) (not (= main_x main_y))), 40286#(and (<= main_a_x 64) (not (= main_x main_y))), 40287#(and (<= main_a_x 65) (not (= main_x main_y))), 40288#(and (<= main_a_x 66) (not (= main_x main_y))), 40289#(and (<= main_a_x 67) (not (= main_x main_y))), 40290#(and (not (= main_x main_y)) (<= main_a_x 68)), 40291#(and (<= main_a_x 69) (not (= main_x main_y))), 40292#(and (<= main_a_x 70) (not (= main_x main_y))), 40293#(and (<= main_a_x 71) (not (= main_x main_y))), 40294#(and (not (= main_x main_y)) (<= main_a_x 72)), 40295#(and (not (= main_x main_y)) (<= main_a_x 73)), 40296#(and (<= main_a_x 74) (not (= main_x main_y))), 40297#(and (<= main_a_x 75) (not (= main_x main_y))), 40298#(and (not (= main_x main_y)) (<= main_a_x 76)), 40299#(and (not (= main_x main_y)) (<= main_a_x 77)), 40300#(and (<= main_a_x 78) (not (= main_x main_y))), 40301#(and (<= main_a_x 79) (not (= main_x main_y))), 40302#(and (not (= main_x main_y)) (<= main_a_x 80)), 40303#(and (not (= main_x main_y)) (<= main_a_x 81)), 40304#(and (not (= main_x main_y)) (<= main_a_x 82)), 40305#(and (not (= main_x main_y)) (<= main_a_x 83)), 40306#(and (<= main_a_x 84) (not (= main_x main_y))), 40307#(and (not (= main_x main_y)) (<= main_a_x 85)), 40308#(and (not (= main_x main_y)) (<= main_a_x 86)), 40309#(and (<= main_a_x 87) (not (= main_x main_y))), 40310#(and (not (= main_x main_y)) (<= main_a_x 88)), 40311#(and (<= main_a_x 89) (not (= main_x main_y))), 40312#(and (not (= main_x main_y)) (<= main_a_x 90)), 40313#(and (<= main_a_x 91) (not (= main_x main_y))), 40314#(and (not (= main_x main_y)) (<= main_a_x 92)), 40315#(and (not (= main_x main_y)) (<= main_a_x 93)), 40316#(and (<= main_a_x 94) (not (= main_x main_y))), 40317#(and (<= main_a_x 95) (not (= main_x main_y))), 40318#(and (not (= main_x main_y)) (<= main_a_x 96)), 40319#(and (<= main_a_x 97) (not (= main_x main_y))), 40320#(and (not (= main_x main_y)) (<= main_a_x 98)), 40321#(and (<= main_a_x 99) (not (= main_x main_y))), 40322#(and (<= main_a_x 100) (not (= main_x main_y))), 40323#(and (not (= main_x main_y)) (<= main_a_x 101)), 40324#(and (not (= main_x main_y)) (<= main_a_x 102)), 40325#(and (not (= main_x main_y)) (<= main_a_x 103)), 40326#(and (<= main_a_x 104) (not (= main_x main_y))), 40327#(and (<= main_a_x 105) (not (= main_x main_y))), 40328#(and (not (= main_x main_y)) (<= main_a_x 106)), 40329#(and (not (= main_x main_y)) (<= main_a_x 107)), 40330#(and (not (= main_x main_y)) (<= main_a_x 108)), 40331#(and (not (= main_x main_y)) (<= main_a_x 109)), 40332#(and (<= main_a_x 110) (not (= main_x main_y))), 40333#(and (not (= main_x main_y)) (<= main_a_x 111)), 40334#(and (<= main_a_x 112) (not (= main_x main_y))), 40335#(and (<= main_a_x 113) (not (= main_x main_y))), 40336#(and (not (= main_x main_y)) (<= main_a_x 114)), 40337#(and (not (= main_x main_y)) (<= main_a_x 115)), 40338#(and (not (= main_x main_y)) (<= main_a_x 116)), 40339#(and (<= main_a_x 117) (not (= main_x main_y))), 40340#(and (not (= main_x main_y)) (<= main_a_x 118)), 40341#(and (not (= main_x main_y)) (<= main_a_x 119)), 40342#(and (not (= main_x main_y)) (<= main_a_x 120)), 40343#(and (not (= main_x main_y)) (<= main_a_x 121)), 40344#(<= main_a_x 122)] [2018-07-23 13:53:22,397 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 13:53:22,397 INFO L450 AbstractCegarLoop]: Interpolant automaton has 125 states [2018-07-23 13:53:22,397 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 125 interpolants. [2018-07-23 13:53:22,398 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7750, Invalid=7750, Unknown=0, NotChecked=0, Total=15500 [2018-07-23 13:53:22,398 INFO L87 Difference]: Start difference. First operand 126 states and 126 transitions. Second operand 125 states. [2018-07-23 13:53:22,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:22,573 INFO L93 Difference]: Finished difference Result 129 states and 129 transitions. [2018-07-23 13:53:22,573 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2018-07-23 13:53:22,573 INFO L78 Accepts]: Start accepts. Automaton has 125 states. Word has length 125 [2018-07-23 13:53:22,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:22,574 INFO L225 Difference]: With dead ends: 129 [2018-07-23 13:53:22,574 INFO L226 Difference]: Without dead ends: 127 [2018-07-23 13:53:22,574 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=7750, Invalid=7750, Unknown=0, NotChecked=0, Total=15500 [2018-07-23 13:53:22,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2018-07-23 13:53:22,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2018-07-23 13:53:22,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2018-07-23 13:53:22,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 127 transitions. [2018-07-23 13:53:22,580 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 127 transitions. Word has length 125 [2018-07-23 13:53:22,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:22,580 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 127 transitions. [2018-07-23 13:53:22,580 INFO L472 AbstractCegarLoop]: Interpolant automaton has 125 states. [2018-07-23 13:53:22,580 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 127 transitions. [2018-07-23 13:53:22,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-07-23 13:53:22,581 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:22,581 INFO L357 BasicCegarLoop]: trace histogram [123, 1, 1, 1] [2018-07-23 13:53:22,581 INFO L414 AbstractCegarLoop]: === Iteration 124 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:22,581 INFO L82 PathProgramCache]: Analyzing trace with hash -571695609, now seen corresponding path program 123 times [2018-07-23 13:53:22,581 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:22,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:24,177 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 13:53:24,178 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:24,178 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [125] total 125 [2018-07-23 13:53:24,178 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:24,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:24,178 INFO L185 omatonBuilderFactory]: Interpolants [40960#(and (not (= main_x main_y)) (<= main_a_x 101)), 40961#(and (not (= main_x main_y)) (<= main_a_x 102)), 40962#(and (not (= main_x main_y)) (<= main_a_x 103)), 40963#(and (<= main_a_x 104) (not (= main_x main_y))), 40964#(and (<= main_a_x 105) (not (= main_x main_y))), 40965#(and (not (= main_x main_y)) (<= main_a_x 106)), 40966#(and (not (= main_x main_y)) (<= main_a_x 107)), 40967#(and (not (= main_x main_y)) (<= main_a_x 108)), 40968#(and (not (= main_x main_y)) (<= main_a_x 109)), 40969#(and (<= main_a_x 110) (not (= main_x main_y))), 40970#(and (not (= main_x main_y)) (<= main_a_x 111)), 40971#(and (<= main_a_x 112) (not (= main_x main_y))), 40972#(and (<= main_a_x 113) (not (= main_x main_y))), 40973#(and (not (= main_x main_y)) (<= main_a_x 114)), 40974#(and (not (= main_x main_y)) (<= main_a_x 115)), 40975#(and (not (= main_x main_y)) (<= main_a_x 116)), 40976#(and (<= main_a_x 117) (not (= main_x main_y))), 40977#(and (not (= main_x main_y)) (<= main_a_x 118)), 40978#(and (not (= main_x main_y)) (<= main_a_x 119)), 40979#(and (not (= main_x main_y)) (<= main_a_x 120)), 40980#(and (not (= main_x main_y)) (<= main_a_x 121)), 40981#(and (not (= main_x main_y)) (<= main_a_x 122)), 40982#(<= main_a_x 123), 40857#true, 40858#false, 40859#(and (not (= main_x main_y)) (<= main_a_x 0)), 40860#(and (not (= main_x main_y)) (<= main_a_x 1)), 40861#(and (not (= main_x main_y)) (<= main_a_x 2)), 40862#(and (not (= main_x main_y)) (<= main_a_x 3)), 40863#(and (<= main_a_x 4) (not (= main_x main_y))), 40864#(and (<= main_a_x 5) (not (= main_x main_y))), 40865#(and (not (= main_x main_y)) (<= main_a_x 6)), 40866#(and (<= main_a_x 7) (not (= main_x main_y))), 40867#(and (not (= main_x main_y)) (<= main_a_x 8)), 40868#(and (not (= main_x main_y)) (<= main_a_x 9)), 40869#(and (<= main_a_x 10) (not (= main_x main_y))), 40870#(and (not (= main_x main_y)) (<= main_a_x 11)), 40871#(and (not (= main_x main_y)) (<= main_a_x 12)), 40872#(and (<= main_a_x 13) (not (= main_x main_y))), 40873#(and (not (= main_x main_y)) (<= main_a_x 14)), 40874#(and (<= main_a_x 15) (not (= main_x main_y))), 40875#(and (not (= main_x main_y)) (<= main_a_x 16)), 40876#(and (not (= main_x main_y)) (<= main_a_x 17)), 40877#(and (<= main_a_x 18) (not (= main_x main_y))), 40878#(and (<= main_a_x 19) (not (= main_x main_y))), 40879#(and (not (= main_x main_y)) (<= main_a_x 20)), 40880#(and (not (= main_x main_y)) (<= main_a_x 21)), 40881#(and (not (= main_x main_y)) (<= main_a_x 22)), 40882#(and (<= main_a_x 23) (not (= main_x main_y))), 40883#(and (not (= main_x main_y)) (<= main_a_x 24)), 40884#(and (<= main_a_x 25) (not (= main_x main_y))), 40885#(and (not (= main_x main_y)) (<= main_a_x 26)), 40886#(and (not (= main_x main_y)) (<= main_a_x 27)), 40887#(and (not (= main_x main_y)) (<= main_a_x 28)), 40888#(and (not (= main_x main_y)) (<= main_a_x 29)), 40889#(and (<= main_a_x 30) (not (= main_x main_y))), 40890#(and (<= main_a_x 31) (not (= main_x main_y))), 40891#(and (not (= main_x main_y)) (<= main_a_x 32)), 40892#(and (not (= main_x main_y)) (<= main_a_x 33)), 40893#(and (not (= main_x main_y)) (<= main_a_x 34)), 40894#(and (<= main_a_x 35) (not (= main_x main_y))), 40895#(and (not (= main_x main_y)) (<= main_a_x 36)), 40896#(and (<= main_a_x 37) (not (= main_x main_y))), 40897#(and (not (= main_x main_y)) (<= main_a_x 38)), 40898#(and (<= main_a_x 39) (not (= main_x main_y))), 40899#(and (<= main_a_x 40) (not (= main_x main_y))), 40900#(and (not (= main_x main_y)) (<= main_a_x 41)), 40901#(and (not (= main_x main_y)) (<= main_a_x 42)), 40902#(and (<= main_a_x 43) (not (= main_x main_y))), 40903#(and (<= main_a_x 44) (not (= main_x main_y))), 40904#(and (<= main_a_x 45) (not (= main_x main_y))), 40905#(and (<= main_a_x 46) (not (= main_x main_y))), 40906#(and (<= main_a_x 47) (not (= main_x main_y))), 40907#(and (<= main_a_x 48) (not (= main_x main_y))), 40908#(and (not (= main_x main_y)) (<= main_a_x 49)), 40909#(and (not (= main_x main_y)) (<= main_a_x 50)), 40910#(and (<= main_a_x 51) (not (= main_x main_y))), 40911#(and (not (= main_x main_y)) (<= main_a_x 52)), 40912#(and (<= main_a_x 53) (not (= main_x main_y))), 40913#(and (<= main_a_x 54) (not (= main_x main_y))), 40914#(and (not (= main_x main_y)) (<= main_a_x 55)), 40915#(and (not (= main_x main_y)) (<= main_a_x 56)), 40916#(and (not (= main_x main_y)) (<= main_a_x 57)), 40917#(and (not (= main_x main_y)) (<= main_a_x 58)), 40918#(and (not (= main_x main_y)) (<= main_a_x 59)), 40919#(and (<= main_a_x 60) (not (= main_x main_y))), 40920#(and (not (= main_x main_y)) (<= main_a_x 61)), 40921#(and (not (= main_x main_y)) (<= main_a_x 62)), 40922#(and (<= main_a_x 63) (not (= main_x main_y))), 40923#(and (<= main_a_x 64) (not (= main_x main_y))), 40924#(and (<= main_a_x 65) (not (= main_x main_y))), 40925#(and (<= main_a_x 66) (not (= main_x main_y))), 40926#(and (<= main_a_x 67) (not (= main_x main_y))), 40927#(and (not (= main_x main_y)) (<= main_a_x 68)), 40928#(and (<= main_a_x 69) (not (= main_x main_y))), 40929#(and (<= main_a_x 70) (not (= main_x main_y))), 40930#(and (<= main_a_x 71) (not (= main_x main_y))), 40931#(and (not (= main_x main_y)) (<= main_a_x 72)), 40932#(and (not (= main_x main_y)) (<= main_a_x 73)), 40933#(and (<= main_a_x 74) (not (= main_x main_y))), 40934#(and (<= main_a_x 75) (not (= main_x main_y))), 40935#(and (not (= main_x main_y)) (<= main_a_x 76)), 40936#(and (not (= main_x main_y)) (<= main_a_x 77)), 40937#(and (<= main_a_x 78) (not (= main_x main_y))), 40938#(and (<= main_a_x 79) (not (= main_x main_y))), 40939#(and (not (= main_x main_y)) (<= main_a_x 80)), 40940#(and (not (= main_x main_y)) (<= main_a_x 81)), 40941#(and (not (= main_x main_y)) (<= main_a_x 82)), 40942#(and (not (= main_x main_y)) (<= main_a_x 83)), 40943#(and (<= main_a_x 84) (not (= main_x main_y))), 40944#(and (not (= main_x main_y)) (<= main_a_x 85)), 40945#(and (not (= main_x main_y)) (<= main_a_x 86)), 40946#(and (<= main_a_x 87) (not (= main_x main_y))), 40947#(and (not (= main_x main_y)) (<= main_a_x 88)), 40948#(and (<= main_a_x 89) (not (= main_x main_y))), 40949#(and (not (= main_x main_y)) (<= main_a_x 90)), 40950#(and (<= main_a_x 91) (not (= main_x main_y))), 40951#(and (not (= main_x main_y)) (<= main_a_x 92)), 40952#(and (not (= main_x main_y)) (<= main_a_x 93)), 40953#(and (<= main_a_x 94) (not (= main_x main_y))), 40954#(and (<= main_a_x 95) (not (= main_x main_y))), 40955#(and (not (= main_x main_y)) (<= main_a_x 96)), 40956#(and (<= main_a_x 97) (not (= main_x main_y))), 40957#(and (not (= main_x main_y)) (<= main_a_x 98)), 40958#(and (<= main_a_x 99) (not (= main_x main_y))), 40959#(and (<= main_a_x 100) (not (= main_x main_y)))] [2018-07-23 13:53:24,179 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 13:53:24,179 INFO L450 AbstractCegarLoop]: Interpolant automaton has 126 states [2018-07-23 13:53:24,180 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 126 interpolants. [2018-07-23 13:53:24,181 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7875, Invalid=7875, Unknown=0, NotChecked=0, Total=15750 [2018-07-23 13:53:24,181 INFO L87 Difference]: Start difference. First operand 127 states and 127 transitions. Second operand 126 states. [2018-07-23 13:53:24,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:24,314 INFO L93 Difference]: Finished difference Result 130 states and 130 transitions. [2018-07-23 13:53:24,314 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2018-07-23 13:53:24,314 INFO L78 Accepts]: Start accepts. Automaton has 126 states. Word has length 126 [2018-07-23 13:53:24,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:24,314 INFO L225 Difference]: With dead ends: 130 [2018-07-23 13:53:24,314 INFO L226 Difference]: Without dead ends: 128 [2018-07-23 13:53:24,315 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=7875, Invalid=7875, Unknown=0, NotChecked=0, Total=15750 [2018-07-23 13:53:24,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2018-07-23 13:53:24,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2018-07-23 13:53:24,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2018-07-23 13:53:24,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 128 transitions. [2018-07-23 13:53:24,321 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 128 transitions. Word has length 126 [2018-07-23 13:53:24,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:24,321 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 128 transitions. [2018-07-23 13:53:24,322 INFO L472 AbstractCegarLoop]: Interpolant automaton has 126 states. [2018-07-23 13:53:24,322 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 128 transitions. [2018-07-23 13:53:24,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2018-07-23 13:53:24,322 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:24,322 INFO L357 BasicCegarLoop]: trace histogram [124, 1, 1, 1] [2018-07-23 13:53:24,323 INFO L414 AbstractCegarLoop]: === Iteration 125 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:24,323 INFO L82 PathProgramCache]: Analyzing trace with hash -542679316, now seen corresponding path program 124 times [2018-07-23 13:53:24,323 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:24,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:26,050 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 13:53:26,050 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:26,050 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [126] total 126 [2018-07-23 13:53:26,050 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:26,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:26,051 INFO L185 omatonBuilderFactory]: Interpolants [41499#true, 41500#false, 41501#(and (not (= main_x main_y)) (<= main_a_x 0)), 41502#(and (not (= main_x main_y)) (<= main_a_x 1)), 41503#(and (not (= main_x main_y)) (<= main_a_x 2)), 41504#(and (not (= main_x main_y)) (<= main_a_x 3)), 41505#(and (<= main_a_x 4) (not (= main_x main_y))), 41506#(and (<= main_a_x 5) (not (= main_x main_y))), 41507#(and (not (= main_x main_y)) (<= main_a_x 6)), 41508#(and (<= main_a_x 7) (not (= main_x main_y))), 41509#(and (not (= main_x main_y)) (<= main_a_x 8)), 41510#(and (not (= main_x main_y)) (<= main_a_x 9)), 41511#(and (<= main_a_x 10) (not (= main_x main_y))), 41512#(and (not (= main_x main_y)) (<= main_a_x 11)), 41513#(and (not (= main_x main_y)) (<= main_a_x 12)), 41514#(and (<= main_a_x 13) (not (= main_x main_y))), 41515#(and (not (= main_x main_y)) (<= main_a_x 14)), 41516#(and (<= main_a_x 15) (not (= main_x main_y))), 41517#(and (not (= main_x main_y)) (<= main_a_x 16)), 41518#(and (not (= main_x main_y)) (<= main_a_x 17)), 41519#(and (<= main_a_x 18) (not (= main_x main_y))), 41520#(and (<= main_a_x 19) (not (= main_x main_y))), 41521#(and (not (= main_x main_y)) (<= main_a_x 20)), 41522#(and (not (= main_x main_y)) (<= main_a_x 21)), 41523#(and (not (= main_x main_y)) (<= main_a_x 22)), 41524#(and (<= main_a_x 23) (not (= main_x main_y))), 41525#(and (not (= main_x main_y)) (<= main_a_x 24)), 41526#(and (<= main_a_x 25) (not (= main_x main_y))), 41527#(and (not (= main_x main_y)) (<= main_a_x 26)), 41528#(and (not (= main_x main_y)) (<= main_a_x 27)), 41529#(and (not (= main_x main_y)) (<= main_a_x 28)), 41530#(and (not (= main_x main_y)) (<= main_a_x 29)), 41531#(and (<= main_a_x 30) (not (= main_x main_y))), 41532#(and (<= main_a_x 31) (not (= main_x main_y))), 41533#(and (not (= main_x main_y)) (<= main_a_x 32)), 41534#(and (not (= main_x main_y)) (<= main_a_x 33)), 41535#(and (not (= main_x main_y)) (<= main_a_x 34)), 41536#(and (<= main_a_x 35) (not (= main_x main_y))), 41537#(and (not (= main_x main_y)) (<= main_a_x 36)), 41538#(and (<= main_a_x 37) (not (= main_x main_y))), 41539#(and (not (= main_x main_y)) (<= main_a_x 38)), 41540#(and (<= main_a_x 39) (not (= main_x main_y))), 41541#(and (<= main_a_x 40) (not (= main_x main_y))), 41542#(and (not (= main_x main_y)) (<= main_a_x 41)), 41543#(and (not (= main_x main_y)) (<= main_a_x 42)), 41544#(and (<= main_a_x 43) (not (= main_x main_y))), 41545#(and (<= main_a_x 44) (not (= main_x main_y))), 41546#(and (<= main_a_x 45) (not (= main_x main_y))), 41547#(and (<= main_a_x 46) (not (= main_x main_y))), 41548#(and (<= main_a_x 47) (not (= main_x main_y))), 41549#(and (<= main_a_x 48) (not (= main_x main_y))), 41550#(and (not (= main_x main_y)) (<= main_a_x 49)), 41551#(and (not (= main_x main_y)) (<= main_a_x 50)), 41552#(and (<= main_a_x 51) (not (= main_x main_y))), 41553#(and (not (= main_x main_y)) (<= main_a_x 52)), 41554#(and (<= main_a_x 53) (not (= main_x main_y))), 41555#(and (<= main_a_x 54) (not (= main_x main_y))), 41556#(and (not (= main_x main_y)) (<= main_a_x 55)), 41557#(and (not (= main_x main_y)) (<= main_a_x 56)), 41558#(and (not (= main_x main_y)) (<= main_a_x 57)), 41559#(and (not (= main_x main_y)) (<= main_a_x 58)), 41560#(and (not (= main_x main_y)) (<= main_a_x 59)), 41561#(and (<= main_a_x 60) (not (= main_x main_y))), 41562#(and (not (= main_x main_y)) (<= main_a_x 61)), 41563#(and (not (= main_x main_y)) (<= main_a_x 62)), 41564#(and (<= main_a_x 63) (not (= main_x main_y))), 41565#(and (<= main_a_x 64) (not (= main_x main_y))), 41566#(and (<= main_a_x 65) (not (= main_x main_y))), 41567#(and (<= main_a_x 66) (not (= main_x main_y))), 41568#(and (<= main_a_x 67) (not (= main_x main_y))), 41569#(and (not (= main_x main_y)) (<= main_a_x 68)), 41570#(and (<= main_a_x 69) (not (= main_x main_y))), 41571#(and (<= main_a_x 70) (not (= main_x main_y))), 41572#(and (<= main_a_x 71) (not (= main_x main_y))), 41573#(and (not (= main_x main_y)) (<= main_a_x 72)), 41574#(and (not (= main_x main_y)) (<= main_a_x 73)), 41575#(and (<= main_a_x 74) (not (= main_x main_y))), 41576#(and (<= main_a_x 75) (not (= main_x main_y))), 41577#(and (not (= main_x main_y)) (<= main_a_x 76)), 41578#(and (not (= main_x main_y)) (<= main_a_x 77)), 41579#(and (<= main_a_x 78) (not (= main_x main_y))), 41580#(and (<= main_a_x 79) (not (= main_x main_y))), 41581#(and (not (= main_x main_y)) (<= main_a_x 80)), 41582#(and (not (= main_x main_y)) (<= main_a_x 81)), 41583#(and (not (= main_x main_y)) (<= main_a_x 82)), 41584#(and (not (= main_x main_y)) (<= main_a_x 83)), 41585#(and (<= main_a_x 84) (not (= main_x main_y))), 41586#(and (not (= main_x main_y)) (<= main_a_x 85)), 41587#(and (not (= main_x main_y)) (<= main_a_x 86)), 41588#(and (<= main_a_x 87) (not (= main_x main_y))), 41589#(and (not (= main_x main_y)) (<= main_a_x 88)), 41590#(and (<= main_a_x 89) (not (= main_x main_y))), 41591#(and (not (= main_x main_y)) (<= main_a_x 90)), 41592#(and (<= main_a_x 91) (not (= main_x main_y))), 41593#(and (not (= main_x main_y)) (<= main_a_x 92)), 41594#(and (not (= main_x main_y)) (<= main_a_x 93)), 41595#(and (<= main_a_x 94) (not (= main_x main_y))), 41596#(and (<= main_a_x 95) (not (= main_x main_y))), 41597#(and (not (= main_x main_y)) (<= main_a_x 96)), 41598#(and (<= main_a_x 97) (not (= main_x main_y))), 41599#(and (not (= main_x main_y)) (<= main_a_x 98)), 41600#(and (<= main_a_x 99) (not (= main_x main_y))), 41601#(and (<= main_a_x 100) (not (= main_x main_y))), 41602#(and (not (= main_x main_y)) (<= main_a_x 101)), 41603#(and (not (= main_x main_y)) (<= main_a_x 102)), 41604#(and (not (= main_x main_y)) (<= main_a_x 103)), 41605#(and (<= main_a_x 104) (not (= main_x main_y))), 41606#(and (<= main_a_x 105) (not (= main_x main_y))), 41607#(and (not (= main_x main_y)) (<= main_a_x 106)), 41608#(and (not (= main_x main_y)) (<= main_a_x 107)), 41609#(and (not (= main_x main_y)) (<= main_a_x 108)), 41610#(and (not (= main_x main_y)) (<= main_a_x 109)), 41611#(and (<= main_a_x 110) (not (= main_x main_y))), 41612#(and (not (= main_x main_y)) (<= main_a_x 111)), 41613#(and (<= main_a_x 112) (not (= main_x main_y))), 41614#(and (<= main_a_x 113) (not (= main_x main_y))), 41615#(and (not (= main_x main_y)) (<= main_a_x 114)), 41616#(and (not (= main_x main_y)) (<= main_a_x 115)), 41617#(and (not (= main_x main_y)) (<= main_a_x 116)), 41618#(and (<= main_a_x 117) (not (= main_x main_y))), 41619#(and (not (= main_x main_y)) (<= main_a_x 118)), 41620#(and (not (= main_x main_y)) (<= main_a_x 119)), 41621#(and (not (= main_x main_y)) (<= main_a_x 120)), 41622#(and (not (= main_x main_y)) (<= main_a_x 121)), 41623#(and (not (= main_x main_y)) (<= main_a_x 122)), 41624#(and (<= main_a_x 123) (not (= main_x main_y))), 41625#(<= main_a_x 124)] [2018-07-23 13:53:26,051 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 13:53:26,051 INFO L450 AbstractCegarLoop]: Interpolant automaton has 127 states [2018-07-23 13:53:26,053 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 127 interpolants. [2018-07-23 13:53:26,053 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8001, Invalid=8001, Unknown=0, NotChecked=0, Total=16002 [2018-07-23 13:53:26,053 INFO L87 Difference]: Start difference. First operand 128 states and 128 transitions. Second operand 127 states. [2018-07-23 13:53:26,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:26,243 INFO L93 Difference]: Finished difference Result 131 states and 131 transitions. [2018-07-23 13:53:26,243 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2018-07-23 13:53:26,243 INFO L78 Accepts]: Start accepts. Automaton has 127 states. Word has length 127 [2018-07-23 13:53:26,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:26,244 INFO L225 Difference]: With dead ends: 131 [2018-07-23 13:53:26,244 INFO L226 Difference]: Without dead ends: 129 [2018-07-23 13:53:26,245 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=8001, Invalid=8001, Unknown=0, NotChecked=0, Total=16002 [2018-07-23 13:53:26,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2018-07-23 13:53:26,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2018-07-23 13:53:26,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2018-07-23 13:53:26,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 129 transitions. [2018-07-23 13:53:26,249 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 129 transitions. Word has length 127 [2018-07-23 13:53:26,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:26,249 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 129 transitions. [2018-07-23 13:53:26,249 INFO L472 AbstractCegarLoop]: Interpolant automaton has 127 states. [2018-07-23 13:53:26,249 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 129 transitions. [2018-07-23 13:53:26,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-07-23 13:53:26,250 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:26,250 INFO L357 BasicCegarLoop]: trace histogram [125, 1, 1, 1] [2018-07-23 13:53:26,250 INFO L414 AbstractCegarLoop]: === Iteration 126 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:26,250 INFO L82 PathProgramCache]: Analyzing trace with hash 356825767, now seen corresponding path program 125 times [2018-07-23 13:53:26,250 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:26,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:27,833 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 13:53:27,833 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:27,833 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [127] total 127 [2018-07-23 13:53:27,833 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:27,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:27,834 INFO L185 omatonBuilderFactory]: Interpolants [42240#(and (not (= main_x main_y)) (<= main_a_x 92)), 42241#(and (not (= main_x main_y)) (<= main_a_x 93)), 42242#(and (<= main_a_x 94) (not (= main_x main_y))), 42243#(and (<= main_a_x 95) (not (= main_x main_y))), 42244#(and (not (= main_x main_y)) (<= main_a_x 96)), 42245#(and (<= main_a_x 97) (not (= main_x main_y))), 42246#(and (not (= main_x main_y)) (<= main_a_x 98)), 42247#(and (<= main_a_x 99) (not (= main_x main_y))), 42248#(and (<= main_a_x 100) (not (= main_x main_y))), 42249#(and (not (= main_x main_y)) (<= main_a_x 101)), 42250#(and (not (= main_x main_y)) (<= main_a_x 102)), 42251#(and (not (= main_x main_y)) (<= main_a_x 103)), 42252#(and (<= main_a_x 104) (not (= main_x main_y))), 42253#(and (<= main_a_x 105) (not (= main_x main_y))), 42254#(and (not (= main_x main_y)) (<= main_a_x 106)), 42255#(and (not (= main_x main_y)) (<= main_a_x 107)), 42256#(and (not (= main_x main_y)) (<= main_a_x 108)), 42257#(and (not (= main_x main_y)) (<= main_a_x 109)), 42258#(and (<= main_a_x 110) (not (= main_x main_y))), 42259#(and (not (= main_x main_y)) (<= main_a_x 111)), 42260#(and (<= main_a_x 112) (not (= main_x main_y))), 42261#(and (<= main_a_x 113) (not (= main_x main_y))), 42262#(and (not (= main_x main_y)) (<= main_a_x 114)), 42263#(and (not (= main_x main_y)) (<= main_a_x 115)), 42264#(and (not (= main_x main_y)) (<= main_a_x 116)), 42265#(and (<= main_a_x 117) (not (= main_x main_y))), 42266#(and (not (= main_x main_y)) (<= main_a_x 118)), 42267#(and (not (= main_x main_y)) (<= main_a_x 119)), 42268#(and (not (= main_x main_y)) (<= main_a_x 120)), 42269#(and (not (= main_x main_y)) (<= main_a_x 121)), 42270#(and (not (= main_x main_y)) (<= main_a_x 122)), 42271#(and (<= main_a_x 123) (not (= main_x main_y))), 42272#(and (not (= main_x main_y)) (<= main_a_x 124)), 42273#(<= main_a_x 125), 42146#true, 42147#false, 42148#(and (not (= main_x main_y)) (<= main_a_x 0)), 42149#(and (not (= main_x main_y)) (<= main_a_x 1)), 42150#(and (not (= main_x main_y)) (<= main_a_x 2)), 42151#(and (not (= main_x main_y)) (<= main_a_x 3)), 42152#(and (<= main_a_x 4) (not (= main_x main_y))), 42153#(and (<= main_a_x 5) (not (= main_x main_y))), 42154#(and (not (= main_x main_y)) (<= main_a_x 6)), 42155#(and (<= main_a_x 7) (not (= main_x main_y))), 42156#(and (not (= main_x main_y)) (<= main_a_x 8)), 42157#(and (not (= main_x main_y)) (<= main_a_x 9)), 42158#(and (<= main_a_x 10) (not (= main_x main_y))), 42159#(and (not (= main_x main_y)) (<= main_a_x 11)), 42160#(and (not (= main_x main_y)) (<= main_a_x 12)), 42161#(and (<= main_a_x 13) (not (= main_x main_y))), 42162#(and (not (= main_x main_y)) (<= main_a_x 14)), 42163#(and (<= main_a_x 15) (not (= main_x main_y))), 42164#(and (not (= main_x main_y)) (<= main_a_x 16)), 42165#(and (not (= main_x main_y)) (<= main_a_x 17)), 42166#(and (<= main_a_x 18) (not (= main_x main_y))), 42167#(and (<= main_a_x 19) (not (= main_x main_y))), 42168#(and (not (= main_x main_y)) (<= main_a_x 20)), 42169#(and (not (= main_x main_y)) (<= main_a_x 21)), 42170#(and (not (= main_x main_y)) (<= main_a_x 22)), 42171#(and (<= main_a_x 23) (not (= main_x main_y))), 42172#(and (not (= main_x main_y)) (<= main_a_x 24)), 42173#(and (<= main_a_x 25) (not (= main_x main_y))), 42174#(and (not (= main_x main_y)) (<= main_a_x 26)), 42175#(and (not (= main_x main_y)) (<= main_a_x 27)), 42176#(and (not (= main_x main_y)) (<= main_a_x 28)), 42177#(and (not (= main_x main_y)) (<= main_a_x 29)), 42178#(and (<= main_a_x 30) (not (= main_x main_y))), 42179#(and (<= main_a_x 31) (not (= main_x main_y))), 42180#(and (not (= main_x main_y)) (<= main_a_x 32)), 42181#(and (not (= main_x main_y)) (<= main_a_x 33)), 42182#(and (not (= main_x main_y)) (<= main_a_x 34)), 42183#(and (<= main_a_x 35) (not (= main_x main_y))), 42184#(and (not (= main_x main_y)) (<= main_a_x 36)), 42185#(and (<= main_a_x 37) (not (= main_x main_y))), 42186#(and (not (= main_x main_y)) (<= main_a_x 38)), 42187#(and (<= main_a_x 39) (not (= main_x main_y))), 42188#(and (<= main_a_x 40) (not (= main_x main_y))), 42189#(and (not (= main_x main_y)) (<= main_a_x 41)), 42190#(and (not (= main_x main_y)) (<= main_a_x 42)), 42191#(and (<= main_a_x 43) (not (= main_x main_y))), 42192#(and (<= main_a_x 44) (not (= main_x main_y))), 42193#(and (<= main_a_x 45) (not (= main_x main_y))), 42194#(and (<= main_a_x 46) (not (= main_x main_y))), 42195#(and (<= main_a_x 47) (not (= main_x main_y))), 42196#(and (<= main_a_x 48) (not (= main_x main_y))), 42197#(and (not (= main_x main_y)) (<= main_a_x 49)), 42198#(and (not (= main_x main_y)) (<= main_a_x 50)), 42199#(and (<= main_a_x 51) (not (= main_x main_y))), 42200#(and (not (= main_x main_y)) (<= main_a_x 52)), 42201#(and (<= main_a_x 53) (not (= main_x main_y))), 42202#(and (<= main_a_x 54) (not (= main_x main_y))), 42203#(and (not (= main_x main_y)) (<= main_a_x 55)), 42204#(and (not (= main_x main_y)) (<= main_a_x 56)), 42205#(and (not (= main_x main_y)) (<= main_a_x 57)), 42206#(and (not (= main_x main_y)) (<= main_a_x 58)), 42207#(and (not (= main_x main_y)) (<= main_a_x 59)), 42208#(and (<= main_a_x 60) (not (= main_x main_y))), 42209#(and (not (= main_x main_y)) (<= main_a_x 61)), 42210#(and (not (= main_x main_y)) (<= main_a_x 62)), 42211#(and (<= main_a_x 63) (not (= main_x main_y))), 42212#(and (<= main_a_x 64) (not (= main_x main_y))), 42213#(and (<= main_a_x 65) (not (= main_x main_y))), 42214#(and (<= main_a_x 66) (not (= main_x main_y))), 42215#(and (<= main_a_x 67) (not (= main_x main_y))), 42216#(and (not (= main_x main_y)) (<= main_a_x 68)), 42217#(and (<= main_a_x 69) (not (= main_x main_y))), 42218#(and (<= main_a_x 70) (not (= main_x main_y))), 42219#(and (<= main_a_x 71) (not (= main_x main_y))), 42220#(and (not (= main_x main_y)) (<= main_a_x 72)), 42221#(and (not (= main_x main_y)) (<= main_a_x 73)), 42222#(and (<= main_a_x 74) (not (= main_x main_y))), 42223#(and (<= main_a_x 75) (not (= main_x main_y))), 42224#(and (not (= main_x main_y)) (<= main_a_x 76)), 42225#(and (not (= main_x main_y)) (<= main_a_x 77)), 42226#(and (<= main_a_x 78) (not (= main_x main_y))), 42227#(and (<= main_a_x 79) (not (= main_x main_y))), 42228#(and (not (= main_x main_y)) (<= main_a_x 80)), 42229#(and (not (= main_x main_y)) (<= main_a_x 81)), 42230#(and (not (= main_x main_y)) (<= main_a_x 82)), 42231#(and (not (= main_x main_y)) (<= main_a_x 83)), 42232#(and (<= main_a_x 84) (not (= main_x main_y))), 42233#(and (not (= main_x main_y)) (<= main_a_x 85)), 42234#(and (not (= main_x main_y)) (<= main_a_x 86)), 42235#(and (<= main_a_x 87) (not (= main_x main_y))), 42236#(and (not (= main_x main_y)) (<= main_a_x 88)), 42237#(and (<= main_a_x 89) (not (= main_x main_y))), 42238#(and (not (= main_x main_y)) (<= main_a_x 90)), 42239#(and (<= main_a_x 91) (not (= main_x main_y)))] [2018-07-23 13:53:27,834 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 13:53:27,835 INFO L450 AbstractCegarLoop]: Interpolant automaton has 128 states [2018-07-23 13:53:27,836 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 128 interpolants. [2018-07-23 13:53:27,836 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8128, Invalid=8128, Unknown=0, NotChecked=0, Total=16256 [2018-07-23 13:53:27,837 INFO L87 Difference]: Start difference. First operand 129 states and 129 transitions. Second operand 128 states. [2018-07-23 13:53:27,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:27,925 INFO L93 Difference]: Finished difference Result 132 states and 132 transitions. [2018-07-23 13:53:27,925 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2018-07-23 13:53:27,926 INFO L78 Accepts]: Start accepts. Automaton has 128 states. Word has length 128 [2018-07-23 13:53:27,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:27,926 INFO L225 Difference]: With dead ends: 132 [2018-07-23 13:53:27,926 INFO L226 Difference]: Without dead ends: 130 [2018-07-23 13:53:27,927 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=8128, Invalid=8128, Unknown=0, NotChecked=0, Total=16256 [2018-07-23 13:53:27,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2018-07-23 13:53:27,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2018-07-23 13:53:27,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2018-07-23 13:53:27,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 130 transitions. [2018-07-23 13:53:27,932 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 130 transitions. Word has length 128 [2018-07-23 13:53:27,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:27,932 INFO L471 AbstractCegarLoop]: Abstraction has 130 states and 130 transitions. [2018-07-23 13:53:27,932 INFO L472 AbstractCegarLoop]: Interpolant automaton has 128 states. [2018-07-23 13:53:27,932 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 130 transitions. [2018-07-23 13:53:27,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-07-23 13:53:27,933 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:27,933 INFO L357 BasicCegarLoop]: trace histogram [126, 1, 1, 1] [2018-07-23 13:53:27,933 INFO L414 AbstractCegarLoop]: === Iteration 127 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:27,933 INFO L82 PathProgramCache]: Analyzing trace with hash -1823287732, now seen corresponding path program 126 times [2018-07-23 13:53:27,934 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:28,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:29,761 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 13:53:29,761 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:29,761 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [128] total 128 [2018-07-23 13:53:29,761 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:29,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:29,762 INFO L185 omatonBuilderFactory]: Interpolants [42798#true, 42799#false, 42800#(and (not (= main_x main_y)) (<= main_a_x 0)), 42801#(and (not (= main_x main_y)) (<= main_a_x 1)), 42802#(and (not (= main_x main_y)) (<= main_a_x 2)), 42803#(and (not (= main_x main_y)) (<= main_a_x 3)), 42804#(and (<= main_a_x 4) (not (= main_x main_y))), 42805#(and (<= main_a_x 5) (not (= main_x main_y))), 42806#(and (not (= main_x main_y)) (<= main_a_x 6)), 42807#(and (<= main_a_x 7) (not (= main_x main_y))), 42808#(and (not (= main_x main_y)) (<= main_a_x 8)), 42809#(and (not (= main_x main_y)) (<= main_a_x 9)), 42810#(and (<= main_a_x 10) (not (= main_x main_y))), 42811#(and (not (= main_x main_y)) (<= main_a_x 11)), 42812#(and (not (= main_x main_y)) (<= main_a_x 12)), 42813#(and (<= main_a_x 13) (not (= main_x main_y))), 42814#(and (not (= main_x main_y)) (<= main_a_x 14)), 42815#(and (<= main_a_x 15) (not (= main_x main_y))), 42816#(and (not (= main_x main_y)) (<= main_a_x 16)), 42817#(and (not (= main_x main_y)) (<= main_a_x 17)), 42818#(and (<= main_a_x 18) (not (= main_x main_y))), 42819#(and (<= main_a_x 19) (not (= main_x main_y))), 42820#(and (not (= main_x main_y)) (<= main_a_x 20)), 42821#(and (not (= main_x main_y)) (<= main_a_x 21)), 42822#(and (not (= main_x main_y)) (<= main_a_x 22)), 42823#(and (<= main_a_x 23) (not (= main_x main_y))), 42824#(and (not (= main_x main_y)) (<= main_a_x 24)), 42825#(and (<= main_a_x 25) (not (= main_x main_y))), 42826#(and (not (= main_x main_y)) (<= main_a_x 26)), 42827#(and (not (= main_x main_y)) (<= main_a_x 27)), 42828#(and (not (= main_x main_y)) (<= main_a_x 28)), 42829#(and (not (= main_x main_y)) (<= main_a_x 29)), 42830#(and (<= main_a_x 30) (not (= main_x main_y))), 42831#(and (<= main_a_x 31) (not (= main_x main_y))), 42832#(and (not (= main_x main_y)) (<= main_a_x 32)), 42833#(and (not (= main_x main_y)) (<= main_a_x 33)), 42834#(and (not (= main_x main_y)) (<= main_a_x 34)), 42835#(and (<= main_a_x 35) (not (= main_x main_y))), 42836#(and (not (= main_x main_y)) (<= main_a_x 36)), 42837#(and (<= main_a_x 37) (not (= main_x main_y))), 42838#(and (not (= main_x main_y)) (<= main_a_x 38)), 42839#(and (<= main_a_x 39) (not (= main_x main_y))), 42840#(and (<= main_a_x 40) (not (= main_x main_y))), 42841#(and (not (= main_x main_y)) (<= main_a_x 41)), 42842#(and (not (= main_x main_y)) (<= main_a_x 42)), 42843#(and (<= main_a_x 43) (not (= main_x main_y))), 42844#(and (<= main_a_x 44) (not (= main_x main_y))), 42845#(and (<= main_a_x 45) (not (= main_x main_y))), 42846#(and (<= main_a_x 46) (not (= main_x main_y))), 42847#(and (<= main_a_x 47) (not (= main_x main_y))), 42848#(and (<= main_a_x 48) (not (= main_x main_y))), 42849#(and (not (= main_x main_y)) (<= main_a_x 49)), 42850#(and (not (= main_x main_y)) (<= main_a_x 50)), 42851#(and (<= main_a_x 51) (not (= main_x main_y))), 42852#(and (not (= main_x main_y)) (<= main_a_x 52)), 42853#(and (<= main_a_x 53) (not (= main_x main_y))), 42854#(and (<= main_a_x 54) (not (= main_x main_y))), 42855#(and (not (= main_x main_y)) (<= main_a_x 55)), 42856#(and (not (= main_x main_y)) (<= main_a_x 56)), 42857#(and (not (= main_x main_y)) (<= main_a_x 57)), 42858#(and (not (= main_x main_y)) (<= main_a_x 58)), 42859#(and (not (= main_x main_y)) (<= main_a_x 59)), 42860#(and (<= main_a_x 60) (not (= main_x main_y))), 42861#(and (not (= main_x main_y)) (<= main_a_x 61)), 42862#(and (not (= main_x main_y)) (<= main_a_x 62)), 42863#(and (<= main_a_x 63) (not (= main_x main_y))), 42864#(and (<= main_a_x 64) (not (= main_x main_y))), 42865#(and (<= main_a_x 65) (not (= main_x main_y))), 42866#(and (<= main_a_x 66) (not (= main_x main_y))), 42867#(and (<= main_a_x 67) (not (= main_x main_y))), 42868#(and (not (= main_x main_y)) (<= main_a_x 68)), 42869#(and (<= main_a_x 69) (not (= main_x main_y))), 42870#(and (<= main_a_x 70) (not (= main_x main_y))), 42871#(and (<= main_a_x 71) (not (= main_x main_y))), 42872#(and (not (= main_x main_y)) (<= main_a_x 72)), 42873#(and (not (= main_x main_y)) (<= main_a_x 73)), 42874#(and (<= main_a_x 74) (not (= main_x main_y))), 42875#(and (<= main_a_x 75) (not (= main_x main_y))), 42876#(and (not (= main_x main_y)) (<= main_a_x 76)), 42877#(and (not (= main_x main_y)) (<= main_a_x 77)), 42878#(and (<= main_a_x 78) (not (= main_x main_y))), 42879#(and (<= main_a_x 79) (not (= main_x main_y))), 42880#(and (not (= main_x main_y)) (<= main_a_x 80)), 42881#(and (not (= main_x main_y)) (<= main_a_x 81)), 42882#(and (not (= main_x main_y)) (<= main_a_x 82)), 42883#(and (not (= main_x main_y)) (<= main_a_x 83)), 42884#(and (<= main_a_x 84) (not (= main_x main_y))), 42885#(and (not (= main_x main_y)) (<= main_a_x 85)), 42886#(and (not (= main_x main_y)) (<= main_a_x 86)), 42887#(and (<= main_a_x 87) (not (= main_x main_y))), 42888#(and (not (= main_x main_y)) (<= main_a_x 88)), 42889#(and (<= main_a_x 89) (not (= main_x main_y))), 42890#(and (not (= main_x main_y)) (<= main_a_x 90)), 42891#(and (<= main_a_x 91) (not (= main_x main_y))), 42892#(and (not (= main_x main_y)) (<= main_a_x 92)), 42893#(and (not (= main_x main_y)) (<= main_a_x 93)), 42894#(and (<= main_a_x 94) (not (= main_x main_y))), 42895#(and (<= main_a_x 95) (not (= main_x main_y))), 42896#(and (not (= main_x main_y)) (<= main_a_x 96)), 42897#(and (<= main_a_x 97) (not (= main_x main_y))), 42898#(and (not (= main_x main_y)) (<= main_a_x 98)), 42899#(and (<= main_a_x 99) (not (= main_x main_y))), 42900#(and (<= main_a_x 100) (not (= main_x main_y))), 42901#(and (not (= main_x main_y)) (<= main_a_x 101)), 42902#(and (not (= main_x main_y)) (<= main_a_x 102)), 42903#(and (not (= main_x main_y)) (<= main_a_x 103)), 42904#(and (<= main_a_x 104) (not (= main_x main_y))), 42905#(and (<= main_a_x 105) (not (= main_x main_y))), 42906#(and (not (= main_x main_y)) (<= main_a_x 106)), 42907#(and (not (= main_x main_y)) (<= main_a_x 107)), 42908#(and (not (= main_x main_y)) (<= main_a_x 108)), 42909#(and (not (= main_x main_y)) (<= main_a_x 109)), 42910#(and (<= main_a_x 110) (not (= main_x main_y))), 42911#(and (not (= main_x main_y)) (<= main_a_x 111)), 42912#(and (<= main_a_x 112) (not (= main_x main_y))), 42913#(and (<= main_a_x 113) (not (= main_x main_y))), 42914#(and (not (= main_x main_y)) (<= main_a_x 114)), 42915#(and (not (= main_x main_y)) (<= main_a_x 115)), 42916#(and (not (= main_x main_y)) (<= main_a_x 116)), 42917#(and (<= main_a_x 117) (not (= main_x main_y))), 42918#(and (not (= main_x main_y)) (<= main_a_x 118)), 42919#(and (not (= main_x main_y)) (<= main_a_x 119)), 42920#(and (not (= main_x main_y)) (<= main_a_x 120)), 42921#(and (not (= main_x main_y)) (<= main_a_x 121)), 42922#(and (not (= main_x main_y)) (<= main_a_x 122)), 42923#(and (<= main_a_x 123) (not (= main_x main_y))), 42924#(and (not (= main_x main_y)) (<= main_a_x 124)), 42925#(and (not (= main_x main_y)) (<= main_a_x 125)), 42926#(<= main_a_x 126)] [2018-07-23 13:53:29,763 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 13:53:29,763 INFO L450 AbstractCegarLoop]: Interpolant automaton has 129 states [2018-07-23 13:53:29,764 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 129 interpolants. [2018-07-23 13:53:29,765 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8256, Invalid=8256, Unknown=0, NotChecked=0, Total=16512 [2018-07-23 13:53:29,765 INFO L87 Difference]: Start difference. First operand 130 states and 130 transitions. Second operand 129 states. [2018-07-23 13:53:29,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:29,961 INFO L93 Difference]: Finished difference Result 133 states and 133 transitions. [2018-07-23 13:53:29,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2018-07-23 13:53:29,962 INFO L78 Accepts]: Start accepts. Automaton has 129 states. Word has length 129 [2018-07-23 13:53:29,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:29,962 INFO L225 Difference]: With dead ends: 133 [2018-07-23 13:53:29,962 INFO L226 Difference]: Without dead ends: 131 [2018-07-23 13:53:29,963 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=8256, Invalid=8256, Unknown=0, NotChecked=0, Total=16512 [2018-07-23 13:53:29,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2018-07-23 13:53:29,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2018-07-23 13:53:29,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2018-07-23 13:53:29,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 131 transitions. [2018-07-23 13:53:29,967 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 131 transitions. Word has length 129 [2018-07-23 13:53:29,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:29,967 INFO L471 AbstractCegarLoop]: Abstraction has 131 states and 131 transitions. [2018-07-23 13:53:29,967 INFO L472 AbstractCegarLoop]: Interpolant automaton has 129 states. [2018-07-23 13:53:29,967 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 131 transitions. [2018-07-23 13:53:29,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-07-23 13:53:29,968 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:29,968 INFO L357 BasicCegarLoop]: trace histogram [127, 1, 1, 1] [2018-07-23 13:53:29,968 INFO L414 AbstractCegarLoop]: === Iteration 128 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:29,968 INFO L82 PathProgramCache]: Analyzing trace with hash -687329465, now seen corresponding path program 127 times [2018-07-23 13:53:29,968 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:30,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:31,812 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 13:53:31,812 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:31,813 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [129] total 129 [2018-07-23 13:53:31,813 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:31,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:31,813 INFO L185 omatonBuilderFactory]: Interpolants [43520#(and (<= main_a_x 63) (not (= main_x main_y))), 43521#(and (<= main_a_x 64) (not (= main_x main_y))), 43522#(and (<= main_a_x 65) (not (= main_x main_y))), 43523#(and (<= main_a_x 66) (not (= main_x main_y))), 43524#(and (<= main_a_x 67) (not (= main_x main_y))), 43525#(and (not (= main_x main_y)) (<= main_a_x 68)), 43526#(and (<= main_a_x 69) (not (= main_x main_y))), 43527#(and (<= main_a_x 70) (not (= main_x main_y))), 43528#(and (<= main_a_x 71) (not (= main_x main_y))), 43529#(and (not (= main_x main_y)) (<= main_a_x 72)), 43530#(and (not (= main_x main_y)) (<= main_a_x 73)), 43531#(and (<= main_a_x 74) (not (= main_x main_y))), 43532#(and (<= main_a_x 75) (not (= main_x main_y))), 43533#(and (not (= main_x main_y)) (<= main_a_x 76)), 43534#(and (not (= main_x main_y)) (<= main_a_x 77)), 43535#(and (<= main_a_x 78) (not (= main_x main_y))), 43536#(and (<= main_a_x 79) (not (= main_x main_y))), 43537#(and (not (= main_x main_y)) (<= main_a_x 80)), 43538#(and (not (= main_x main_y)) (<= main_a_x 81)), 43539#(and (not (= main_x main_y)) (<= main_a_x 82)), 43540#(and (not (= main_x main_y)) (<= main_a_x 83)), 43541#(and (<= main_a_x 84) (not (= main_x main_y))), 43542#(and (not (= main_x main_y)) (<= main_a_x 85)), 43543#(and (not (= main_x main_y)) (<= main_a_x 86)), 43544#(and (<= main_a_x 87) (not (= main_x main_y))), 43545#(and (not (= main_x main_y)) (<= main_a_x 88)), 43546#(and (<= main_a_x 89) (not (= main_x main_y))), 43547#(and (not (= main_x main_y)) (<= main_a_x 90)), 43548#(and (<= main_a_x 91) (not (= main_x main_y))), 43549#(and (not (= main_x main_y)) (<= main_a_x 92)), 43550#(and (not (= main_x main_y)) (<= main_a_x 93)), 43551#(and (<= main_a_x 94) (not (= main_x main_y))), 43552#(and (<= main_a_x 95) (not (= main_x main_y))), 43553#(and (not (= main_x main_y)) (<= main_a_x 96)), 43554#(and (<= main_a_x 97) (not (= main_x main_y))), 43555#(and (not (= main_x main_y)) (<= main_a_x 98)), 43556#(and (<= main_a_x 99) (not (= main_x main_y))), 43557#(and (<= main_a_x 100) (not (= main_x main_y))), 43558#(and (not (= main_x main_y)) (<= main_a_x 101)), 43559#(and (not (= main_x main_y)) (<= main_a_x 102)), 43560#(and (not (= main_x main_y)) (<= main_a_x 103)), 43561#(and (<= main_a_x 104) (not (= main_x main_y))), 43562#(and (<= main_a_x 105) (not (= main_x main_y))), 43563#(and (not (= main_x main_y)) (<= main_a_x 106)), 43564#(and (not (= main_x main_y)) (<= main_a_x 107)), 43565#(and (not (= main_x main_y)) (<= main_a_x 108)), 43566#(and (not (= main_x main_y)) (<= main_a_x 109)), 43567#(and (<= main_a_x 110) (not (= main_x main_y))), 43568#(and (not (= main_x main_y)) (<= main_a_x 111)), 43569#(and (<= main_a_x 112) (not (= main_x main_y))), 43570#(and (<= main_a_x 113) (not (= main_x main_y))), 43571#(and (not (= main_x main_y)) (<= main_a_x 114)), 43572#(and (not (= main_x main_y)) (<= main_a_x 115)), 43573#(and (not (= main_x main_y)) (<= main_a_x 116)), 43574#(and (<= main_a_x 117) (not (= main_x main_y))), 43575#(and (not (= main_x main_y)) (<= main_a_x 118)), 43576#(and (not (= main_x main_y)) (<= main_a_x 119)), 43577#(and (not (= main_x main_y)) (<= main_a_x 120)), 43578#(and (not (= main_x main_y)) (<= main_a_x 121)), 43579#(and (not (= main_x main_y)) (<= main_a_x 122)), 43580#(and (<= main_a_x 123) (not (= main_x main_y))), 43581#(and (not (= main_x main_y)) (<= main_a_x 124)), 43582#(and (not (= main_x main_y)) (<= main_a_x 125)), 43583#(and (not (= main_x main_y)) (<= main_a_x 126)), 43584#(<= main_a_x 127), 43455#true, 43456#false, 43457#(and (not (= main_x main_y)) (<= main_a_x 0)), 43458#(and (not (= main_x main_y)) (<= main_a_x 1)), 43459#(and (not (= main_x main_y)) (<= main_a_x 2)), 43460#(and (not (= main_x main_y)) (<= main_a_x 3)), 43461#(and (<= main_a_x 4) (not (= main_x main_y))), 43462#(and (<= main_a_x 5) (not (= main_x main_y))), 43463#(and (not (= main_x main_y)) (<= main_a_x 6)), 43464#(and (<= main_a_x 7) (not (= main_x main_y))), 43465#(and (not (= main_x main_y)) (<= main_a_x 8)), 43466#(and (not (= main_x main_y)) (<= main_a_x 9)), 43467#(and (<= main_a_x 10) (not (= main_x main_y))), 43468#(and (not (= main_x main_y)) (<= main_a_x 11)), 43469#(and (not (= main_x main_y)) (<= main_a_x 12)), 43470#(and (<= main_a_x 13) (not (= main_x main_y))), 43471#(and (not (= main_x main_y)) (<= main_a_x 14)), 43472#(and (<= main_a_x 15) (not (= main_x main_y))), 43473#(and (not (= main_x main_y)) (<= main_a_x 16)), 43474#(and (not (= main_x main_y)) (<= main_a_x 17)), 43475#(and (<= main_a_x 18) (not (= main_x main_y))), 43476#(and (<= main_a_x 19) (not (= main_x main_y))), 43477#(and (not (= main_x main_y)) (<= main_a_x 20)), 43478#(and (not (= main_x main_y)) (<= main_a_x 21)), 43479#(and (not (= main_x main_y)) (<= main_a_x 22)), 43480#(and (<= main_a_x 23) (not (= main_x main_y))), 43481#(and (not (= main_x main_y)) (<= main_a_x 24)), 43482#(and (<= main_a_x 25) (not (= main_x main_y))), 43483#(and (not (= main_x main_y)) (<= main_a_x 26)), 43484#(and (not (= main_x main_y)) (<= main_a_x 27)), 43485#(and (not (= main_x main_y)) (<= main_a_x 28)), 43486#(and (not (= main_x main_y)) (<= main_a_x 29)), 43487#(and (<= main_a_x 30) (not (= main_x main_y))), 43488#(and (<= main_a_x 31) (not (= main_x main_y))), 43489#(and (not (= main_x main_y)) (<= main_a_x 32)), 43490#(and (not (= main_x main_y)) (<= main_a_x 33)), 43491#(and (not (= main_x main_y)) (<= main_a_x 34)), 43492#(and (<= main_a_x 35) (not (= main_x main_y))), 43493#(and (not (= main_x main_y)) (<= main_a_x 36)), 43494#(and (<= main_a_x 37) (not (= main_x main_y))), 43495#(and (not (= main_x main_y)) (<= main_a_x 38)), 43496#(and (<= main_a_x 39) (not (= main_x main_y))), 43497#(and (<= main_a_x 40) (not (= main_x main_y))), 43498#(and (not (= main_x main_y)) (<= main_a_x 41)), 43499#(and (not (= main_x main_y)) (<= main_a_x 42)), 43500#(and (<= main_a_x 43) (not (= main_x main_y))), 43501#(and (<= main_a_x 44) (not (= main_x main_y))), 43502#(and (<= main_a_x 45) (not (= main_x main_y))), 43503#(and (<= main_a_x 46) (not (= main_x main_y))), 43504#(and (<= main_a_x 47) (not (= main_x main_y))), 43505#(and (<= main_a_x 48) (not (= main_x main_y))), 43506#(and (not (= main_x main_y)) (<= main_a_x 49)), 43507#(and (not (= main_x main_y)) (<= main_a_x 50)), 43508#(and (<= main_a_x 51) (not (= main_x main_y))), 43509#(and (not (= main_x main_y)) (<= main_a_x 52)), 43510#(and (<= main_a_x 53) (not (= main_x main_y))), 43511#(and (<= main_a_x 54) (not (= main_x main_y))), 43512#(and (not (= main_x main_y)) (<= main_a_x 55)), 43513#(and (not (= main_x main_y)) (<= main_a_x 56)), 43514#(and (not (= main_x main_y)) (<= main_a_x 57)), 43515#(and (not (= main_x main_y)) (<= main_a_x 58)), 43516#(and (not (= main_x main_y)) (<= main_a_x 59)), 43517#(and (<= main_a_x 60) (not (= main_x main_y))), 43518#(and (not (= main_x main_y)) (<= main_a_x 61)), 43519#(and (not (= main_x main_y)) (<= main_a_x 62))] [2018-07-23 13:53:31,814 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 13:53:31,814 INFO L450 AbstractCegarLoop]: Interpolant automaton has 130 states [2018-07-23 13:53:31,816 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2018-07-23 13:53:31,816 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8385, Invalid=8385, Unknown=0, NotChecked=0, Total=16770 [2018-07-23 13:53:31,817 INFO L87 Difference]: Start difference. First operand 131 states and 131 transitions. Second operand 130 states. [2018-07-23 13:53:31,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:31,905 INFO L93 Difference]: Finished difference Result 134 states and 134 transitions. [2018-07-23 13:53:31,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2018-07-23 13:53:31,905 INFO L78 Accepts]: Start accepts. Automaton has 130 states. Word has length 130 [2018-07-23 13:53:31,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:31,906 INFO L225 Difference]: With dead ends: 134 [2018-07-23 13:53:31,906 INFO L226 Difference]: Without dead ends: 132 [2018-07-23 13:53:31,907 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=8385, Invalid=8385, Unknown=0, NotChecked=0, Total=16770 [2018-07-23 13:53:31,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2018-07-23 13:53:31,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2018-07-23 13:53:31,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2018-07-23 13:53:31,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 132 transitions. [2018-07-23 13:53:31,913 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 132 transitions. Word has length 130 [2018-07-23 13:53:31,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:31,913 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 132 transitions. [2018-07-23 13:53:31,913 INFO L472 AbstractCegarLoop]: Interpolant automaton has 130 states. [2018-07-23 13:53:31,913 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 132 transitions. [2018-07-23 13:53:31,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-07-23 13:53:31,914 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:31,914 INFO L357 BasicCegarLoop]: trace histogram [128, 1, 1, 1] [2018-07-23 13:53:31,914 INFO L414 AbstractCegarLoop]: === Iteration 129 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:31,914 INFO L82 PathProgramCache]: Analyzing trace with hash 167638444, now seen corresponding path program 128 times [2018-07-23 13:53:31,914 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:32,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:33,507 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 13:53:33,507 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:33,508 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [130] total 130 [2018-07-23 13:53:33,508 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:33,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:33,508 INFO L185 omatonBuilderFactory]: Interpolants [44117#true, 44118#false, 44119#(and (not (= main_x main_y)) (<= main_a_x 0)), 44120#(and (not (= main_x main_y)) (<= main_a_x 1)), 44121#(and (not (= main_x main_y)) (<= main_a_x 2)), 44122#(and (not (= main_x main_y)) (<= main_a_x 3)), 44123#(and (<= main_a_x 4) (not (= main_x main_y))), 44124#(and (<= main_a_x 5) (not (= main_x main_y))), 44125#(and (not (= main_x main_y)) (<= main_a_x 6)), 44126#(and (<= main_a_x 7) (not (= main_x main_y))), 44127#(and (not (= main_x main_y)) (<= main_a_x 8)), 44128#(and (not (= main_x main_y)) (<= main_a_x 9)), 44129#(and (<= main_a_x 10) (not (= main_x main_y))), 44130#(and (not (= main_x main_y)) (<= main_a_x 11)), 44131#(and (not (= main_x main_y)) (<= main_a_x 12)), 44132#(and (<= main_a_x 13) (not (= main_x main_y))), 44133#(and (not (= main_x main_y)) (<= main_a_x 14)), 44134#(and (<= main_a_x 15) (not (= main_x main_y))), 44135#(and (not (= main_x main_y)) (<= main_a_x 16)), 44136#(and (not (= main_x main_y)) (<= main_a_x 17)), 44137#(and (<= main_a_x 18) (not (= main_x main_y))), 44138#(and (<= main_a_x 19) (not (= main_x main_y))), 44139#(and (not (= main_x main_y)) (<= main_a_x 20)), 44140#(and (not (= main_x main_y)) (<= main_a_x 21)), 44141#(and (not (= main_x main_y)) (<= main_a_x 22)), 44142#(and (<= main_a_x 23) (not (= main_x main_y))), 44143#(and (not (= main_x main_y)) (<= main_a_x 24)), 44144#(and (<= main_a_x 25) (not (= main_x main_y))), 44145#(and (not (= main_x main_y)) (<= main_a_x 26)), 44146#(and (not (= main_x main_y)) (<= main_a_x 27)), 44147#(and (not (= main_x main_y)) (<= main_a_x 28)), 44148#(and (not (= main_x main_y)) (<= main_a_x 29)), 44149#(and (<= main_a_x 30) (not (= main_x main_y))), 44150#(and (<= main_a_x 31) (not (= main_x main_y))), 44151#(and (not (= main_x main_y)) (<= main_a_x 32)), 44152#(and (not (= main_x main_y)) (<= main_a_x 33)), 44153#(and (not (= main_x main_y)) (<= main_a_x 34)), 44154#(and (<= main_a_x 35) (not (= main_x main_y))), 44155#(and (not (= main_x main_y)) (<= main_a_x 36)), 44156#(and (<= main_a_x 37) (not (= main_x main_y))), 44157#(and (not (= main_x main_y)) (<= main_a_x 38)), 44158#(and (<= main_a_x 39) (not (= main_x main_y))), 44159#(and (<= main_a_x 40) (not (= main_x main_y))), 44160#(and (not (= main_x main_y)) (<= main_a_x 41)), 44161#(and (not (= main_x main_y)) (<= main_a_x 42)), 44162#(and (<= main_a_x 43) (not (= main_x main_y))), 44163#(and (<= main_a_x 44) (not (= main_x main_y))), 44164#(and (<= main_a_x 45) (not (= main_x main_y))), 44165#(and (<= main_a_x 46) (not (= main_x main_y))), 44166#(and (<= main_a_x 47) (not (= main_x main_y))), 44167#(and (<= main_a_x 48) (not (= main_x main_y))), 44168#(and (not (= main_x main_y)) (<= main_a_x 49)), 44169#(and (not (= main_x main_y)) (<= main_a_x 50)), 44170#(and (<= main_a_x 51) (not (= main_x main_y))), 44171#(and (not (= main_x main_y)) (<= main_a_x 52)), 44172#(and (<= main_a_x 53) (not (= main_x main_y))), 44173#(and (<= main_a_x 54) (not (= main_x main_y))), 44174#(and (not (= main_x main_y)) (<= main_a_x 55)), 44175#(and (not (= main_x main_y)) (<= main_a_x 56)), 44176#(and (not (= main_x main_y)) (<= main_a_x 57)), 44177#(and (not (= main_x main_y)) (<= main_a_x 58)), 44178#(and (not (= main_x main_y)) (<= main_a_x 59)), 44179#(and (<= main_a_x 60) (not (= main_x main_y))), 44180#(and (not (= main_x main_y)) (<= main_a_x 61)), 44181#(and (not (= main_x main_y)) (<= main_a_x 62)), 44182#(and (<= main_a_x 63) (not (= main_x main_y))), 44183#(and (<= main_a_x 64) (not (= main_x main_y))), 44184#(and (<= main_a_x 65) (not (= main_x main_y))), 44185#(and (<= main_a_x 66) (not (= main_x main_y))), 44186#(and (<= main_a_x 67) (not (= main_x main_y))), 44187#(and (not (= main_x main_y)) (<= main_a_x 68)), 44188#(and (<= main_a_x 69) (not (= main_x main_y))), 44189#(and (<= main_a_x 70) (not (= main_x main_y))), 44190#(and (<= main_a_x 71) (not (= main_x main_y))), 44191#(and (not (= main_x main_y)) (<= main_a_x 72)), 44192#(and (not (= main_x main_y)) (<= main_a_x 73)), 44193#(and (<= main_a_x 74) (not (= main_x main_y))), 44194#(and (<= main_a_x 75) (not (= main_x main_y))), 44195#(and (not (= main_x main_y)) (<= main_a_x 76)), 44196#(and (not (= main_x main_y)) (<= main_a_x 77)), 44197#(and (<= main_a_x 78) (not (= main_x main_y))), 44198#(and (<= main_a_x 79) (not (= main_x main_y))), 44199#(and (not (= main_x main_y)) (<= main_a_x 80)), 44200#(and (not (= main_x main_y)) (<= main_a_x 81)), 44201#(and (not (= main_x main_y)) (<= main_a_x 82)), 44202#(and (not (= main_x main_y)) (<= main_a_x 83)), 44203#(and (<= main_a_x 84) (not (= main_x main_y))), 44204#(and (not (= main_x main_y)) (<= main_a_x 85)), 44205#(and (not (= main_x main_y)) (<= main_a_x 86)), 44206#(and (<= main_a_x 87) (not (= main_x main_y))), 44207#(and (not (= main_x main_y)) (<= main_a_x 88)), 44208#(and (<= main_a_x 89) (not (= main_x main_y))), 44209#(and (not (= main_x main_y)) (<= main_a_x 90)), 44210#(and (<= main_a_x 91) (not (= main_x main_y))), 44211#(and (not (= main_x main_y)) (<= main_a_x 92)), 44212#(and (not (= main_x main_y)) (<= main_a_x 93)), 44213#(and (<= main_a_x 94) (not (= main_x main_y))), 44214#(and (<= main_a_x 95) (not (= main_x main_y))), 44215#(and (not (= main_x main_y)) (<= main_a_x 96)), 44216#(and (<= main_a_x 97) (not (= main_x main_y))), 44217#(and (not (= main_x main_y)) (<= main_a_x 98)), 44218#(and (<= main_a_x 99) (not (= main_x main_y))), 44219#(and (<= main_a_x 100) (not (= main_x main_y))), 44220#(and (not (= main_x main_y)) (<= main_a_x 101)), 44221#(and (not (= main_x main_y)) (<= main_a_x 102)), 44222#(and (not (= main_x main_y)) (<= main_a_x 103)), 44223#(and (<= main_a_x 104) (not (= main_x main_y))), 44224#(and (<= main_a_x 105) (not (= main_x main_y))), 44225#(and (not (= main_x main_y)) (<= main_a_x 106)), 44226#(and (not (= main_x main_y)) (<= main_a_x 107)), 44227#(and (not (= main_x main_y)) (<= main_a_x 108)), 44228#(and (not (= main_x main_y)) (<= main_a_x 109)), 44229#(and (<= main_a_x 110) (not (= main_x main_y))), 44230#(and (not (= main_x main_y)) (<= main_a_x 111)), 44231#(and (<= main_a_x 112) (not (= main_x main_y))), 44232#(and (<= main_a_x 113) (not (= main_x main_y))), 44233#(and (not (= main_x main_y)) (<= main_a_x 114)), 44234#(and (not (= main_x main_y)) (<= main_a_x 115)), 44235#(and (not (= main_x main_y)) (<= main_a_x 116)), 44236#(and (<= main_a_x 117) (not (= main_x main_y))), 44237#(and (not (= main_x main_y)) (<= main_a_x 118)), 44238#(and (not (= main_x main_y)) (<= main_a_x 119)), 44239#(and (not (= main_x main_y)) (<= main_a_x 120)), 44240#(and (not (= main_x main_y)) (<= main_a_x 121)), 44241#(and (not (= main_x main_y)) (<= main_a_x 122)), 44242#(and (<= main_a_x 123) (not (= main_x main_y))), 44243#(and (not (= main_x main_y)) (<= main_a_x 124)), 44244#(and (not (= main_x main_y)) (<= main_a_x 125)), 44245#(and (not (= main_x main_y)) (<= main_a_x 126)), 44246#(and (not (= main_x main_y)) (<= main_a_x 127)), 44247#(<= main_a_x 128)] [2018-07-23 13:53:33,509 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 13:53:33,509 INFO L450 AbstractCegarLoop]: Interpolant automaton has 131 states [2018-07-23 13:53:33,510 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 131 interpolants. [2018-07-23 13:53:33,511 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8515, Invalid=8515, Unknown=0, NotChecked=0, Total=17030 [2018-07-23 13:53:33,511 INFO L87 Difference]: Start difference. First operand 132 states and 132 transitions. Second operand 131 states. [2018-07-23 13:53:33,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:33,710 INFO L93 Difference]: Finished difference Result 135 states and 135 transitions. [2018-07-23 13:53:33,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2018-07-23 13:53:33,710 INFO L78 Accepts]: Start accepts. Automaton has 131 states. Word has length 131 [2018-07-23 13:53:33,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:33,710 INFO L225 Difference]: With dead ends: 135 [2018-07-23 13:53:33,710 INFO L226 Difference]: Without dead ends: 133 [2018-07-23 13:53:33,712 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=8515, Invalid=8515, Unknown=0, NotChecked=0, Total=17030 [2018-07-23 13:53:33,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2018-07-23 13:53:33,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2018-07-23 13:53:33,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2018-07-23 13:53:33,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 133 transitions. [2018-07-23 13:53:33,716 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 133 transitions. Word has length 131 [2018-07-23 13:53:33,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:33,716 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 133 transitions. [2018-07-23 13:53:33,716 INFO L472 AbstractCegarLoop]: Interpolant automaton has 131 states. [2018-07-23 13:53:33,716 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 133 transitions. [2018-07-23 13:53:33,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-07-23 13:53:33,717 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:33,717 INFO L357 BasicCegarLoop]: trace histogram [129, 1, 1, 1] [2018-07-23 13:53:33,717 INFO L414 AbstractCegarLoop]: === Iteration 130 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:33,717 INFO L82 PathProgramCache]: Analyzing trace with hash 901839847, now seen corresponding path program 129 times [2018-07-23 13:53:33,717 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:34,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:35,536 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 13:53:35,536 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:35,536 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [131] total 131 [2018-07-23 13:53:35,536 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:35,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:35,537 INFO L185 omatonBuilderFactory]: Interpolants [44800#(and (not (= main_x main_y)) (<= main_a_x 14)), 44801#(and (<= main_a_x 15) (not (= main_x main_y))), 44802#(and (not (= main_x main_y)) (<= main_a_x 16)), 44803#(and (not (= main_x main_y)) (<= main_a_x 17)), 44804#(and (<= main_a_x 18) (not (= main_x main_y))), 44805#(and (<= main_a_x 19) (not (= main_x main_y))), 44806#(and (not (= main_x main_y)) (<= main_a_x 20)), 44807#(and (not (= main_x main_y)) (<= main_a_x 21)), 44808#(and (not (= main_x main_y)) (<= main_a_x 22)), 44809#(and (<= main_a_x 23) (not (= main_x main_y))), 44810#(and (not (= main_x main_y)) (<= main_a_x 24)), 44811#(and (<= main_a_x 25) (not (= main_x main_y))), 44812#(and (not (= main_x main_y)) (<= main_a_x 26)), 44813#(and (not (= main_x main_y)) (<= main_a_x 27)), 44814#(and (not (= main_x main_y)) (<= main_a_x 28)), 44815#(and (not (= main_x main_y)) (<= main_a_x 29)), 44816#(and (<= main_a_x 30) (not (= main_x main_y))), 44817#(and (<= main_a_x 31) (not (= main_x main_y))), 44818#(and (not (= main_x main_y)) (<= main_a_x 32)), 44819#(and (not (= main_x main_y)) (<= main_a_x 33)), 44820#(and (not (= main_x main_y)) (<= main_a_x 34)), 44821#(and (<= main_a_x 35) (not (= main_x main_y))), 44822#(and (not (= main_x main_y)) (<= main_a_x 36)), 44823#(and (<= main_a_x 37) (not (= main_x main_y))), 44824#(and (not (= main_x main_y)) (<= main_a_x 38)), 44825#(and (<= main_a_x 39) (not (= main_x main_y))), 44826#(and (<= main_a_x 40) (not (= main_x main_y))), 44827#(and (not (= main_x main_y)) (<= main_a_x 41)), 44828#(and (not (= main_x main_y)) (<= main_a_x 42)), 44829#(and (<= main_a_x 43) (not (= main_x main_y))), 44830#(and (<= main_a_x 44) (not (= main_x main_y))), 44831#(and (<= main_a_x 45) (not (= main_x main_y))), 44832#(and (<= main_a_x 46) (not (= main_x main_y))), 44833#(and (<= main_a_x 47) (not (= main_x main_y))), 44834#(and (<= main_a_x 48) (not (= main_x main_y))), 44835#(and (not (= main_x main_y)) (<= main_a_x 49)), 44836#(and (not (= main_x main_y)) (<= main_a_x 50)), 44837#(and (<= main_a_x 51) (not (= main_x main_y))), 44838#(and (not (= main_x main_y)) (<= main_a_x 52)), 44839#(and (<= main_a_x 53) (not (= main_x main_y))), 44840#(and (<= main_a_x 54) (not (= main_x main_y))), 44841#(and (not (= main_x main_y)) (<= main_a_x 55)), 44842#(and (not (= main_x main_y)) (<= main_a_x 56)), 44843#(and (not (= main_x main_y)) (<= main_a_x 57)), 44844#(and (not (= main_x main_y)) (<= main_a_x 58)), 44845#(and (not (= main_x main_y)) (<= main_a_x 59)), 44846#(and (<= main_a_x 60) (not (= main_x main_y))), 44847#(and (not (= main_x main_y)) (<= main_a_x 61)), 44848#(and (not (= main_x main_y)) (<= main_a_x 62)), 44849#(and (<= main_a_x 63) (not (= main_x main_y))), 44850#(and (<= main_a_x 64) (not (= main_x main_y))), 44851#(and (<= main_a_x 65) (not (= main_x main_y))), 44852#(and (<= main_a_x 66) (not (= main_x main_y))), 44853#(and (<= main_a_x 67) (not (= main_x main_y))), 44854#(and (not (= main_x main_y)) (<= main_a_x 68)), 44855#(and (<= main_a_x 69) (not (= main_x main_y))), 44856#(and (<= main_a_x 70) (not (= main_x main_y))), 44857#(and (<= main_a_x 71) (not (= main_x main_y))), 44858#(and (not (= main_x main_y)) (<= main_a_x 72)), 44859#(and (not (= main_x main_y)) (<= main_a_x 73)), 44860#(and (<= main_a_x 74) (not (= main_x main_y))), 44861#(and (<= main_a_x 75) (not (= main_x main_y))), 44862#(and (not (= main_x main_y)) (<= main_a_x 76)), 44863#(and (not (= main_x main_y)) (<= main_a_x 77)), 44864#(and (<= main_a_x 78) (not (= main_x main_y))), 44865#(and (<= main_a_x 79) (not (= main_x main_y))), 44866#(and (not (= main_x main_y)) (<= main_a_x 80)), 44867#(and (not (= main_x main_y)) (<= main_a_x 81)), 44868#(and (not (= main_x main_y)) (<= main_a_x 82)), 44869#(and (not (= main_x main_y)) (<= main_a_x 83)), 44870#(and (<= main_a_x 84) (not (= main_x main_y))), 44871#(and (not (= main_x main_y)) (<= main_a_x 85)), 44872#(and (not (= main_x main_y)) (<= main_a_x 86)), 44873#(and (<= main_a_x 87) (not (= main_x main_y))), 44874#(and (not (= main_x main_y)) (<= main_a_x 88)), 44875#(and (<= main_a_x 89) (not (= main_x main_y))), 44876#(and (not (= main_x main_y)) (<= main_a_x 90)), 44877#(and (<= main_a_x 91) (not (= main_x main_y))), 44878#(and (not (= main_x main_y)) (<= main_a_x 92)), 44879#(and (not (= main_x main_y)) (<= main_a_x 93)), 44880#(and (<= main_a_x 94) (not (= main_x main_y))), 44881#(and (<= main_a_x 95) (not (= main_x main_y))), 44882#(and (not (= main_x main_y)) (<= main_a_x 96)), 44883#(and (<= main_a_x 97) (not (= main_x main_y))), 44884#(and (not (= main_x main_y)) (<= main_a_x 98)), 44885#(and (<= main_a_x 99) (not (= main_x main_y))), 44886#(and (<= main_a_x 100) (not (= main_x main_y))), 44887#(and (not (= main_x main_y)) (<= main_a_x 101)), 44888#(and (not (= main_x main_y)) (<= main_a_x 102)), 44889#(and (not (= main_x main_y)) (<= main_a_x 103)), 44890#(and (<= main_a_x 104) (not (= main_x main_y))), 44891#(and (<= main_a_x 105) (not (= main_x main_y))), 44892#(and (not (= main_x main_y)) (<= main_a_x 106)), 44893#(and (not (= main_x main_y)) (<= main_a_x 107)), 44894#(and (not (= main_x main_y)) (<= main_a_x 108)), 44895#(and (not (= main_x main_y)) (<= main_a_x 109)), 44896#(and (<= main_a_x 110) (not (= main_x main_y))), 44897#(and (not (= main_x main_y)) (<= main_a_x 111)), 44898#(and (<= main_a_x 112) (not (= main_x main_y))), 44899#(and (<= main_a_x 113) (not (= main_x main_y))), 44900#(and (not (= main_x main_y)) (<= main_a_x 114)), 44901#(and (not (= main_x main_y)) (<= main_a_x 115)), 44902#(and (not (= main_x main_y)) (<= main_a_x 116)), 44903#(and (<= main_a_x 117) (not (= main_x main_y))), 44904#(and (not (= main_x main_y)) (<= main_a_x 118)), 44905#(and (not (= main_x main_y)) (<= main_a_x 119)), 44906#(and (not (= main_x main_y)) (<= main_a_x 120)), 44907#(and (not (= main_x main_y)) (<= main_a_x 121)), 44908#(and (not (= main_x main_y)) (<= main_a_x 122)), 44909#(and (<= main_a_x 123) (not (= main_x main_y))), 44910#(and (not (= main_x main_y)) (<= main_a_x 124)), 44911#(and (not (= main_x main_y)) (<= main_a_x 125)), 44912#(and (not (= main_x main_y)) (<= main_a_x 126)), 44913#(and (not (= main_x main_y)) (<= main_a_x 127)), 44914#(and (<= main_a_x 128) (not (= main_x main_y))), 44915#(<= main_a_x 129), 44784#true, 44785#false, 44786#(and (not (= main_x main_y)) (<= main_a_x 0)), 44787#(and (not (= main_x main_y)) (<= main_a_x 1)), 44788#(and (not (= main_x main_y)) (<= main_a_x 2)), 44789#(and (not (= main_x main_y)) (<= main_a_x 3)), 44790#(and (<= main_a_x 4) (not (= main_x main_y))), 44791#(and (<= main_a_x 5) (not (= main_x main_y))), 44792#(and (not (= main_x main_y)) (<= main_a_x 6)), 44793#(and (<= main_a_x 7) (not (= main_x main_y))), 44794#(and (not (= main_x main_y)) (<= main_a_x 8)), 44795#(and (not (= main_x main_y)) (<= main_a_x 9)), 44796#(and (<= main_a_x 10) (not (= main_x main_y))), 44797#(and (not (= main_x main_y)) (<= main_a_x 11)), 44798#(and (not (= main_x main_y)) (<= main_a_x 12)), 44799#(and (<= main_a_x 13) (not (= main_x main_y)))] [2018-07-23 13:53:35,537 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 13:53:35,538 INFO L450 AbstractCegarLoop]: Interpolant automaton has 132 states [2018-07-23 13:53:35,538 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 132 interpolants. [2018-07-23 13:53:35,539 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8646, Invalid=8646, Unknown=0, NotChecked=0, Total=17292 [2018-07-23 13:53:35,539 INFO L87 Difference]: Start difference. First operand 133 states and 133 transitions. Second operand 132 states. [2018-07-23 13:53:35,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:35,732 INFO L93 Difference]: Finished difference Result 136 states and 136 transitions. [2018-07-23 13:53:35,732 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2018-07-23 13:53:35,732 INFO L78 Accepts]: Start accepts. Automaton has 132 states. Word has length 132 [2018-07-23 13:53:35,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:35,732 INFO L225 Difference]: With dead ends: 136 [2018-07-23 13:53:35,733 INFO L226 Difference]: Without dead ends: 134 [2018-07-23 13:53:35,733 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=8646, Invalid=8646, Unknown=0, NotChecked=0, Total=17292 [2018-07-23 13:53:35,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2018-07-23 13:53:35,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2018-07-23 13:53:35,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2018-07-23 13:53:35,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 134 transitions. [2018-07-23 13:53:35,737 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 134 transitions. Word has length 132 [2018-07-23 13:53:35,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:35,737 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 134 transitions. [2018-07-23 13:53:35,737 INFO L472 AbstractCegarLoop]: Interpolant automaton has 132 states. [2018-07-23 13:53:35,737 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 134 transitions. [2018-07-23 13:53:35,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2018-07-23 13:53:35,738 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:35,738 INFO L357 BasicCegarLoop]: trace histogram [130, 1, 1, 1] [2018-07-23 13:53:35,738 INFO L414 AbstractCegarLoop]: === Iteration 131 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:35,738 INFO L82 PathProgramCache]: Analyzing trace with hash -2107720436, now seen corresponding path program 130 times [2018-07-23 13:53:35,738 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:36,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:37,423 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 13:53:37,423 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:37,423 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [132] total 132 [2018-07-23 13:53:37,423 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:37,424 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 13:53:37,424 INFO L185 omatonBuilderFactory]: Interpolants [45568#(and (<= main_a_x 110) (not (= main_x main_y))), 45569#(and (not (= main_x main_y)) (<= main_a_x 111)), 45570#(and (<= main_a_x 112) (not (= main_x main_y))), 45571#(and (<= main_a_x 113) (not (= main_x main_y))), 45572#(and (not (= main_x main_y)) (<= main_a_x 114)), 45573#(and (not (= main_x main_y)) (<= main_a_x 115)), 45574#(and (not (= main_x main_y)) (<= main_a_x 116)), 45575#(and (<= main_a_x 117) (not (= main_x main_y))), 45576#(and (not (= main_x main_y)) (<= main_a_x 118)), 45577#(and (not (= main_x main_y)) (<= main_a_x 119)), 45578#(and (not (= main_x main_y)) (<= main_a_x 120)), 45579#(and (not (= main_x main_y)) (<= main_a_x 121)), 45580#(and (not (= main_x main_y)) (<= main_a_x 122)), 45581#(and (<= main_a_x 123) (not (= main_x main_y))), 45582#(and (not (= main_x main_y)) (<= main_a_x 124)), 45583#(and (not (= main_x main_y)) (<= main_a_x 125)), 45584#(and (not (= main_x main_y)) (<= main_a_x 126)), 45585#(and (not (= main_x main_y)) (<= main_a_x 127)), 45586#(and (<= main_a_x 128) (not (= main_x main_y))), 45587#(and (<= main_a_x 129) (not (= main_x main_y))), 45588#(<= main_a_x 130), 45456#true, 45457#false, 45458#(and (not (= main_x main_y)) (<= main_a_x 0)), 45459#(and (not (= main_x main_y)) (<= main_a_x 1)), 45460#(and (not (= main_x main_y)) (<= main_a_x 2)), 45461#(and (not (= main_x main_y)) (<= main_a_x 3)), 45462#(and (<= main_a_x 4) (not (= main_x main_y))), 45463#(and (<= main_a_x 5) (not (= main_x main_y))), 45464#(and (not (= main_x main_y)) (<= main_a_x 6)), 45465#(and (<= main_a_x 7) (not (= main_x main_y))), 45466#(and (not (= main_x main_y)) (<= main_a_x 8)), 45467#(and (not (= main_x main_y)) (<= main_a_x 9)), 45468#(and (<= main_a_x 10) (not (= main_x main_y))), 45469#(and (not (= main_x main_y)) (<= main_a_x 11)), 45470#(and (not (= main_x main_y)) (<= main_a_x 12)), 45471#(and (<= main_a_x 13) (not (= main_x main_y))), 45472#(and (not (= main_x main_y)) (<= main_a_x 14)), 45473#(and (<= main_a_x 15) (not (= main_x main_y))), 45474#(and (not (= main_x main_y)) (<= main_a_x 16)), 45475#(and (not (= main_x main_y)) (<= main_a_x 17)), 45476#(and (<= main_a_x 18) (not (= main_x main_y))), 45477#(and (<= main_a_x 19) (not (= main_x main_y))), 45478#(and (not (= main_x main_y)) (<= main_a_x 20)), 45479#(and (not (= main_x main_y)) (<= main_a_x 21)), 45480#(and (not (= main_x main_y)) (<= main_a_x 22)), 45481#(and (<= main_a_x 23) (not (= main_x main_y))), 45482#(and (not (= main_x main_y)) (<= main_a_x 24)), 45483#(and (<= main_a_x 25) (not (= main_x main_y))), 45484#(and (not (= main_x main_y)) (<= main_a_x 26)), 45485#(and (not (= main_x main_y)) (<= main_a_x 27)), 45486#(and (not (= main_x main_y)) (<= main_a_x 28)), 45487#(and (not (= main_x main_y)) (<= main_a_x 29)), 45488#(and (<= main_a_x 30) (not (= main_x main_y))), 45489#(and (<= main_a_x 31) (not (= main_x main_y))), 45490#(and (not (= main_x main_y)) (<= main_a_x 32)), 45491#(and (not (= main_x main_y)) (<= main_a_x 33)), 45492#(and (not (= main_x main_y)) (<= main_a_x 34)), 45493#(and (<= main_a_x 35) (not (= main_x main_y))), 45494#(and (not (= main_x main_y)) (<= main_a_x 36)), 45495#(and (<= main_a_x 37) (not (= main_x main_y))), 45496#(and (not (= main_x main_y)) (<= main_a_x 38)), 45497#(and (<= main_a_x 39) (not (= main_x main_y))), 45498#(and (<= main_a_x 40) (not (= main_x main_y))), 45499#(and (not (= main_x main_y)) (<= main_a_x 41)), 45500#(and (not (= main_x main_y)) (<= main_a_x 42)), 45501#(and (<= main_a_x 43) (not (= main_x main_y))), 45502#(and (<= main_a_x 44) (not (= main_x main_y))), 45503#(and (<= main_a_x 45) (not (= main_x main_y))), 45504#(and (<= main_a_x 46) (not (= main_x main_y))), 45505#(and (<= main_a_x 47) (not (= main_x main_y))), 45506#(and (<= main_a_x 48) (not (= main_x main_y))), 45507#(and (not (= main_x main_y)) (<= main_a_x 49)), 45508#(and (not (= main_x main_y)) (<= main_a_x 50)), 45509#(and (<= main_a_x 51) (not (= main_x main_y))), 45510#(and (not (= main_x main_y)) (<= main_a_x 52)), 45511#(and (<= main_a_x 53) (not (= main_x main_y))), 45512#(and (<= main_a_x 54) (not (= main_x main_y))), 45513#(and (not (= main_x main_y)) (<= main_a_x 55)), 45514#(and (not (= main_x main_y)) (<= main_a_x 56)), 45515#(and (not (= main_x main_y)) (<= main_a_x 57)), 45516#(and (not (= main_x main_y)) (<= main_a_x 58)), 45517#(and (not (= main_x main_y)) (<= main_a_x 59)), 45518#(and (<= main_a_x 60) (not (= main_x main_y))), 45519#(and (not (= main_x main_y)) (<= main_a_x 61)), 45520#(and (not (= main_x main_y)) (<= main_a_x 62)), 45521#(and (<= main_a_x 63) (not (= main_x main_y))), 45522#(and (<= main_a_x 64) (not (= main_x main_y))), 45523#(and (<= main_a_x 65) (not (= main_x main_y))), 45524#(and (<= main_a_x 66) (not (= main_x main_y))), 45525#(and (<= main_a_x 67) (not (= main_x main_y))), 45526#(and (not (= main_x main_y)) (<= main_a_x 68)), 45527#(and (<= main_a_x 69) (not (= main_x main_y))), 45528#(and (<= main_a_x 70) (not (= main_x main_y))), 45529#(and (<= main_a_x 71) (not (= main_x main_y))), 45530#(and (not (= main_x main_y)) (<= main_a_x 72)), 45531#(and (not (= main_x main_y)) (<= main_a_x 73)), 45532#(and (<= main_a_x 74) (not (= main_x main_y))), 45533#(and (<= main_a_x 75) (not (= main_x main_y))), 45534#(and (not (= main_x main_y)) (<= main_a_x 76)), 45535#(and (not (= main_x main_y)) (<= main_a_x 77)), 45536#(and (<= main_a_x 78) (not (= main_x main_y))), 45537#(and (<= main_a_x 79) (not (= main_x main_y))), 45538#(and (not (= main_x main_y)) (<= main_a_x 80)), 45539#(and (not (= main_x main_y)) (<= main_a_x 81)), 45540#(and (not (= main_x main_y)) (<= main_a_x 82)), 45541#(and (not (= main_x main_y)) (<= main_a_x 83)), 45542#(and (<= main_a_x 84) (not (= main_x main_y))), 45543#(and (not (= main_x main_y)) (<= main_a_x 85)), 45544#(and (not (= main_x main_y)) (<= main_a_x 86)), 45545#(and (<= main_a_x 87) (not (= main_x main_y))), 45546#(and (not (= main_x main_y)) (<= main_a_x 88)), 45547#(and (<= main_a_x 89) (not (= main_x main_y))), 45548#(and (not (= main_x main_y)) (<= main_a_x 90)), 45549#(and (<= main_a_x 91) (not (= main_x main_y))), 45550#(and (not (= main_x main_y)) (<= main_a_x 92)), 45551#(and (not (= main_x main_y)) (<= main_a_x 93)), 45552#(and (<= main_a_x 94) (not (= main_x main_y))), 45553#(and (<= main_a_x 95) (not (= main_x main_y))), 45554#(and (not (= main_x main_y)) (<= main_a_x 96)), 45555#(and (<= main_a_x 97) (not (= main_x main_y))), 45556#(and (not (= main_x main_y)) (<= main_a_x 98)), 45557#(and (<= main_a_x 99) (not (= main_x main_y))), 45558#(and (<= main_a_x 100) (not (= main_x main_y))), 45559#(and (not (= main_x main_y)) (<= main_a_x 101)), 45560#(and (not (= main_x main_y)) (<= main_a_x 102)), 45561#(and (not (= main_x main_y)) (<= main_a_x 103)), 45562#(and (<= main_a_x 104) (not (= main_x main_y))), 45563#(and (<= main_a_x 105) (not (= main_x main_y))), 45564#(and (not (= main_x main_y)) (<= main_a_x 106)), 45565#(and (not (= main_x main_y)) (<= main_a_x 107)), 45566#(and (not (= main_x main_y)) (<= main_a_x 108)), 45567#(and (not (= main_x main_y)) (<= main_a_x 109))] [2018-07-23 13:53:37,424 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 13:53:37,425 INFO L450 AbstractCegarLoop]: Interpolant automaton has 133 states [2018-07-23 13:53:37,426 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 133 interpolants. [2018-07-23 13:53:37,426 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8778, Invalid=8778, Unknown=0, NotChecked=0, Total=17556 [2018-07-23 13:53:37,426 INFO L87 Difference]: Start difference. First operand 134 states and 134 transitions. Second operand 133 states. [2018-07-23 13:53:37,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:37,570 INFO L93 Difference]: Finished difference Result 137 states and 137 transitions. [2018-07-23 13:53:37,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2018-07-23 13:53:37,570 INFO L78 Accepts]: Start accepts. Automaton has 133 states. Word has length 133 [2018-07-23 13:53:37,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:37,570 INFO L225 Difference]: With dead ends: 137 [2018-07-23 13:53:37,571 INFO L226 Difference]: Without dead ends: 135 [2018-07-23 13:53:37,571 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=8778, Invalid=8778, Unknown=0, NotChecked=0, Total=17556 [2018-07-23 13:53:37,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2018-07-23 13:53:37,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2018-07-23 13:53:37,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2018-07-23 13:53:37,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 135 transitions. [2018-07-23 13:53:37,575 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 135 transitions. Word has length 133 [2018-07-23 13:53:37,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:37,575 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 135 transitions. [2018-07-23 13:53:37,576 INFO L472 AbstractCegarLoop]: Interpolant automaton has 133 states. [2018-07-23 13:53:37,576 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 135 transitions. [2018-07-23 13:53:37,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-07-23 13:53:37,576 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:37,576 INFO L357 BasicCegarLoop]: trace histogram [131, 1, 1, 1] [2018-07-23 13:53:37,576 INFO L414 AbstractCegarLoop]: === Iteration 132 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:37,576 INFO L82 PathProgramCache]: Analyzing trace with hash -914808697, now seen corresponding path program 131 times [2018-07-23 13:53:37,576 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:38,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:39,567 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 13:53:39,567 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:39,567 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [133] total 133 [2018-07-23 13:53:39,567 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:39,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:39,568 INFO L185 omatonBuilderFactory]: Interpolants [46133#true, 46134#false, 46135#(and (not (= main_x main_y)) (<= main_a_x 0)), 46136#(and (not (= main_x main_y)) (<= main_a_x 1)), 46137#(and (not (= main_x main_y)) (<= main_a_x 2)), 46138#(and (not (= main_x main_y)) (<= main_a_x 3)), 46139#(and (<= main_a_x 4) (not (= main_x main_y))), 46140#(and (<= main_a_x 5) (not (= main_x main_y))), 46141#(and (not (= main_x main_y)) (<= main_a_x 6)), 46142#(and (<= main_a_x 7) (not (= main_x main_y))), 46143#(and (not (= main_x main_y)) (<= main_a_x 8)), 46144#(and (not (= main_x main_y)) (<= main_a_x 9)), 46145#(and (<= main_a_x 10) (not (= main_x main_y))), 46146#(and (not (= main_x main_y)) (<= main_a_x 11)), 46147#(and (not (= main_x main_y)) (<= main_a_x 12)), 46148#(and (<= main_a_x 13) (not (= main_x main_y))), 46149#(and (not (= main_x main_y)) (<= main_a_x 14)), 46150#(and (<= main_a_x 15) (not (= main_x main_y))), 46151#(and (not (= main_x main_y)) (<= main_a_x 16)), 46152#(and (not (= main_x main_y)) (<= main_a_x 17)), 46153#(and (<= main_a_x 18) (not (= main_x main_y))), 46154#(and (<= main_a_x 19) (not (= main_x main_y))), 46155#(and (not (= main_x main_y)) (<= main_a_x 20)), 46156#(and (not (= main_x main_y)) (<= main_a_x 21)), 46157#(and (not (= main_x main_y)) (<= main_a_x 22)), 46158#(and (<= main_a_x 23) (not (= main_x main_y))), 46159#(and (not (= main_x main_y)) (<= main_a_x 24)), 46160#(and (<= main_a_x 25) (not (= main_x main_y))), 46161#(and (not (= main_x main_y)) (<= main_a_x 26)), 46162#(and (not (= main_x main_y)) (<= main_a_x 27)), 46163#(and (not (= main_x main_y)) (<= main_a_x 28)), 46164#(and (not (= main_x main_y)) (<= main_a_x 29)), 46165#(and (<= main_a_x 30) (not (= main_x main_y))), 46166#(and (<= main_a_x 31) (not (= main_x main_y))), 46167#(and (not (= main_x main_y)) (<= main_a_x 32)), 46168#(and (not (= main_x main_y)) (<= main_a_x 33)), 46169#(and (not (= main_x main_y)) (<= main_a_x 34)), 46170#(and (<= main_a_x 35) (not (= main_x main_y))), 46171#(and (not (= main_x main_y)) (<= main_a_x 36)), 46172#(and (<= main_a_x 37) (not (= main_x main_y))), 46173#(and (not (= main_x main_y)) (<= main_a_x 38)), 46174#(and (<= main_a_x 39) (not (= main_x main_y))), 46175#(and (<= main_a_x 40) (not (= main_x main_y))), 46176#(and (not (= main_x main_y)) (<= main_a_x 41)), 46177#(and (not (= main_x main_y)) (<= main_a_x 42)), 46178#(and (<= main_a_x 43) (not (= main_x main_y))), 46179#(and (<= main_a_x 44) (not (= main_x main_y))), 46180#(and (<= main_a_x 45) (not (= main_x main_y))), 46181#(and (<= main_a_x 46) (not (= main_x main_y))), 46182#(and (<= main_a_x 47) (not (= main_x main_y))), 46183#(and (<= main_a_x 48) (not (= main_x main_y))), 46184#(and (not (= main_x main_y)) (<= main_a_x 49)), 46185#(and (not (= main_x main_y)) (<= main_a_x 50)), 46186#(and (<= main_a_x 51) (not (= main_x main_y))), 46187#(and (not (= main_x main_y)) (<= main_a_x 52)), 46188#(and (<= main_a_x 53) (not (= main_x main_y))), 46189#(and (<= main_a_x 54) (not (= main_x main_y))), 46190#(and (not (= main_x main_y)) (<= main_a_x 55)), 46191#(and (not (= main_x main_y)) (<= main_a_x 56)), 46192#(and (not (= main_x main_y)) (<= main_a_x 57)), 46193#(and (not (= main_x main_y)) (<= main_a_x 58)), 46194#(and (not (= main_x main_y)) (<= main_a_x 59)), 46195#(and (<= main_a_x 60) (not (= main_x main_y))), 46196#(and (not (= main_x main_y)) (<= main_a_x 61)), 46197#(and (not (= main_x main_y)) (<= main_a_x 62)), 46198#(and (<= main_a_x 63) (not (= main_x main_y))), 46199#(and (<= main_a_x 64) (not (= main_x main_y))), 46200#(and (<= main_a_x 65) (not (= main_x main_y))), 46201#(and (<= main_a_x 66) (not (= main_x main_y))), 46202#(and (<= main_a_x 67) (not (= main_x main_y))), 46203#(and (not (= main_x main_y)) (<= main_a_x 68)), 46204#(and (<= main_a_x 69) (not (= main_x main_y))), 46205#(and (<= main_a_x 70) (not (= main_x main_y))), 46206#(and (<= main_a_x 71) (not (= main_x main_y))), 46207#(and (not (= main_x main_y)) (<= main_a_x 72)), 46208#(and (not (= main_x main_y)) (<= main_a_x 73)), 46209#(and (<= main_a_x 74) (not (= main_x main_y))), 46210#(and (<= main_a_x 75) (not (= main_x main_y))), 46211#(and (not (= main_x main_y)) (<= main_a_x 76)), 46212#(and (not (= main_x main_y)) (<= main_a_x 77)), 46213#(and (<= main_a_x 78) (not (= main_x main_y))), 46214#(and (<= main_a_x 79) (not (= main_x main_y))), 46215#(and (not (= main_x main_y)) (<= main_a_x 80)), 46216#(and (not (= main_x main_y)) (<= main_a_x 81)), 46217#(and (not (= main_x main_y)) (<= main_a_x 82)), 46218#(and (not (= main_x main_y)) (<= main_a_x 83)), 46219#(and (<= main_a_x 84) (not (= main_x main_y))), 46220#(and (not (= main_x main_y)) (<= main_a_x 85)), 46221#(and (not (= main_x main_y)) (<= main_a_x 86)), 46222#(and (<= main_a_x 87) (not (= main_x main_y))), 46223#(and (not (= main_x main_y)) (<= main_a_x 88)), 46224#(and (<= main_a_x 89) (not (= main_x main_y))), 46225#(and (not (= main_x main_y)) (<= main_a_x 90)), 46226#(and (<= main_a_x 91) (not (= main_x main_y))), 46227#(and (not (= main_x main_y)) (<= main_a_x 92)), 46228#(and (not (= main_x main_y)) (<= main_a_x 93)), 46229#(and (<= main_a_x 94) (not (= main_x main_y))), 46230#(and (<= main_a_x 95) (not (= main_x main_y))), 46231#(and (not (= main_x main_y)) (<= main_a_x 96)), 46232#(and (<= main_a_x 97) (not (= main_x main_y))), 46233#(and (not (= main_x main_y)) (<= main_a_x 98)), 46234#(and (<= main_a_x 99) (not (= main_x main_y))), 46235#(and (<= main_a_x 100) (not (= main_x main_y))), 46236#(and (not (= main_x main_y)) (<= main_a_x 101)), 46237#(and (not (= main_x main_y)) (<= main_a_x 102)), 46238#(and (not (= main_x main_y)) (<= main_a_x 103)), 46239#(and (<= main_a_x 104) (not (= main_x main_y))), 46240#(and (<= main_a_x 105) (not (= main_x main_y))), 46241#(and (not (= main_x main_y)) (<= main_a_x 106)), 46242#(and (not (= main_x main_y)) (<= main_a_x 107)), 46243#(and (not (= main_x main_y)) (<= main_a_x 108)), 46244#(and (not (= main_x main_y)) (<= main_a_x 109)), 46245#(and (<= main_a_x 110) (not (= main_x main_y))), 46246#(and (not (= main_x main_y)) (<= main_a_x 111)), 46247#(and (<= main_a_x 112) (not (= main_x main_y))), 46248#(and (<= main_a_x 113) (not (= main_x main_y))), 46249#(and (not (= main_x main_y)) (<= main_a_x 114)), 46250#(and (not (= main_x main_y)) (<= main_a_x 115)), 46251#(and (not (= main_x main_y)) (<= main_a_x 116)), 46252#(and (<= main_a_x 117) (not (= main_x main_y))), 46253#(and (not (= main_x main_y)) (<= main_a_x 118)), 46254#(and (not (= main_x main_y)) (<= main_a_x 119)), 46255#(and (not (= main_x main_y)) (<= main_a_x 120)), 46256#(and (not (= main_x main_y)) (<= main_a_x 121)), 46257#(and (not (= main_x main_y)) (<= main_a_x 122)), 46258#(and (<= main_a_x 123) (not (= main_x main_y))), 46259#(and (not (= main_x main_y)) (<= main_a_x 124)), 46260#(and (not (= main_x main_y)) (<= main_a_x 125)), 46261#(and (not (= main_x main_y)) (<= main_a_x 126)), 46262#(and (not (= main_x main_y)) (<= main_a_x 127)), 46263#(and (<= main_a_x 128) (not (= main_x main_y))), 46264#(and (<= main_a_x 129) (not (= main_x main_y))), 46265#(and (not (= main_x main_y)) (<= main_a_x 130)), 46266#(<= main_a_x 131)] [2018-07-23 13:53:39,568 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 13:53:39,568 INFO L450 AbstractCegarLoop]: Interpolant automaton has 134 states [2018-07-23 13:53:39,569 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 134 interpolants. [2018-07-23 13:53:39,569 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8911, Invalid=8911, Unknown=0, NotChecked=0, Total=17822 [2018-07-23 13:53:39,570 INFO L87 Difference]: Start difference. First operand 135 states and 135 transitions. Second operand 134 states. [2018-07-23 13:53:39,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:39,760 INFO L93 Difference]: Finished difference Result 138 states and 138 transitions. [2018-07-23 13:53:39,760 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 134 states. [2018-07-23 13:53:39,760 INFO L78 Accepts]: Start accepts. Automaton has 134 states. Word has length 134 [2018-07-23 13:53:39,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:39,761 INFO L225 Difference]: With dead ends: 138 [2018-07-23 13:53:39,761 INFO L226 Difference]: Without dead ends: 136 [2018-07-23 13:53:39,761 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=8911, Invalid=8911, Unknown=0, NotChecked=0, Total=17822 [2018-07-23 13:53:39,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2018-07-23 13:53:39,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2018-07-23 13:53:39,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2018-07-23 13:53:39,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 136 transitions. [2018-07-23 13:53:39,767 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 136 transitions. Word has length 134 [2018-07-23 13:53:39,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:39,768 INFO L471 AbstractCegarLoop]: Abstraction has 136 states and 136 transitions. [2018-07-23 13:53:39,768 INFO L472 AbstractCegarLoop]: Interpolant automaton has 134 states. [2018-07-23 13:53:39,768 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 136 transitions. [2018-07-23 13:53:39,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2018-07-23 13:53:39,768 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:39,768 INFO L357 BasicCegarLoop]: trace histogram [132, 1, 1, 1] [2018-07-23 13:53:39,769 INFO L414 AbstractCegarLoop]: === Iteration 133 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:39,769 INFO L82 PathProgramCache]: Analyzing trace with hash 1705716844, now seen corresponding path program 132 times [2018-07-23 13:53:39,769 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:40,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:41,475 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 13:53:41,475 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:41,475 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [134] total 134 [2018-07-23 13:53:41,475 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:41,475 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 13:53:41,476 INFO L185 omatonBuilderFactory]: Interpolants [46848#(and (<= main_a_x 31) (not (= main_x main_y))), 46849#(and (not (= main_x main_y)) (<= main_a_x 32)), 46850#(and (not (= main_x main_y)) (<= main_a_x 33)), 46851#(and (not (= main_x main_y)) (<= main_a_x 34)), 46852#(and (<= main_a_x 35) (not (= main_x main_y))), 46853#(and (not (= main_x main_y)) (<= main_a_x 36)), 46854#(and (<= main_a_x 37) (not (= main_x main_y))), 46855#(and (not (= main_x main_y)) (<= main_a_x 38)), 46856#(and (<= main_a_x 39) (not (= main_x main_y))), 46857#(and (<= main_a_x 40) (not (= main_x main_y))), 46858#(and (not (= main_x main_y)) (<= main_a_x 41)), 46859#(and (not (= main_x main_y)) (<= main_a_x 42)), 46860#(and (<= main_a_x 43) (not (= main_x main_y))), 46861#(and (<= main_a_x 44) (not (= main_x main_y))), 46862#(and (<= main_a_x 45) (not (= main_x main_y))), 46863#(and (<= main_a_x 46) (not (= main_x main_y))), 46864#(and (<= main_a_x 47) (not (= main_x main_y))), 46865#(and (<= main_a_x 48) (not (= main_x main_y))), 46866#(and (not (= main_x main_y)) (<= main_a_x 49)), 46867#(and (not (= main_x main_y)) (<= main_a_x 50)), 46868#(and (<= main_a_x 51) (not (= main_x main_y))), 46869#(and (not (= main_x main_y)) (<= main_a_x 52)), 46870#(and (<= main_a_x 53) (not (= main_x main_y))), 46871#(and (<= main_a_x 54) (not (= main_x main_y))), 46872#(and (not (= main_x main_y)) (<= main_a_x 55)), 46873#(and (not (= main_x main_y)) (<= main_a_x 56)), 46874#(and (not (= main_x main_y)) (<= main_a_x 57)), 46875#(and (not (= main_x main_y)) (<= main_a_x 58)), 46876#(and (not (= main_x main_y)) (<= main_a_x 59)), 46877#(and (<= main_a_x 60) (not (= main_x main_y))), 46878#(and (not (= main_x main_y)) (<= main_a_x 61)), 46879#(and (not (= main_x main_y)) (<= main_a_x 62)), 46880#(and (<= main_a_x 63) (not (= main_x main_y))), 46881#(and (<= main_a_x 64) (not (= main_x main_y))), 46882#(and (<= main_a_x 65) (not (= main_x main_y))), 46883#(and (<= main_a_x 66) (not (= main_x main_y))), 46884#(and (<= main_a_x 67) (not (= main_x main_y))), 46885#(and (not (= main_x main_y)) (<= main_a_x 68)), 46886#(and (<= main_a_x 69) (not (= main_x main_y))), 46887#(and (<= main_a_x 70) (not (= main_x main_y))), 46888#(and (<= main_a_x 71) (not (= main_x main_y))), 46889#(and (not (= main_x main_y)) (<= main_a_x 72)), 46890#(and (not (= main_x main_y)) (<= main_a_x 73)), 46891#(and (<= main_a_x 74) (not (= main_x main_y))), 46892#(and (<= main_a_x 75) (not (= main_x main_y))), 46893#(and (not (= main_x main_y)) (<= main_a_x 76)), 46894#(and (not (= main_x main_y)) (<= main_a_x 77)), 46895#(and (<= main_a_x 78) (not (= main_x main_y))), 46896#(and (<= main_a_x 79) (not (= main_x main_y))), 46897#(and (not (= main_x main_y)) (<= main_a_x 80)), 46898#(and (not (= main_x main_y)) (<= main_a_x 81)), 46899#(and (not (= main_x main_y)) (<= main_a_x 82)), 46900#(and (not (= main_x main_y)) (<= main_a_x 83)), 46901#(and (<= main_a_x 84) (not (= main_x main_y))), 46902#(and (not (= main_x main_y)) (<= main_a_x 85)), 46903#(and (not (= main_x main_y)) (<= main_a_x 86)), 46904#(and (<= main_a_x 87) (not (= main_x main_y))), 46905#(and (not (= main_x main_y)) (<= main_a_x 88)), 46906#(and (<= main_a_x 89) (not (= main_x main_y))), 46907#(and (not (= main_x main_y)) (<= main_a_x 90)), 46908#(and (<= main_a_x 91) (not (= main_x main_y))), 46909#(and (not (= main_x main_y)) (<= main_a_x 92)), 46910#(and (not (= main_x main_y)) (<= main_a_x 93)), 46911#(and (<= main_a_x 94) (not (= main_x main_y))), 46912#(and (<= main_a_x 95) (not (= main_x main_y))), 46913#(and (not (= main_x main_y)) (<= main_a_x 96)), 46914#(and (<= main_a_x 97) (not (= main_x main_y))), 46915#(and (not (= main_x main_y)) (<= main_a_x 98)), 46916#(and (<= main_a_x 99) (not (= main_x main_y))), 46917#(and (<= main_a_x 100) (not (= main_x main_y))), 46918#(and (not (= main_x main_y)) (<= main_a_x 101)), 46919#(and (not (= main_x main_y)) (<= main_a_x 102)), 46920#(and (not (= main_x main_y)) (<= main_a_x 103)), 46921#(and (<= main_a_x 104) (not (= main_x main_y))), 46922#(and (<= main_a_x 105) (not (= main_x main_y))), 46923#(and (not (= main_x main_y)) (<= main_a_x 106)), 46924#(and (not (= main_x main_y)) (<= main_a_x 107)), 46925#(and (not (= main_x main_y)) (<= main_a_x 108)), 46926#(and (not (= main_x main_y)) (<= main_a_x 109)), 46927#(and (<= main_a_x 110) (not (= main_x main_y))), 46928#(and (not (= main_x main_y)) (<= main_a_x 111)), 46929#(and (<= main_a_x 112) (not (= main_x main_y))), 46930#(and (<= main_a_x 113) (not (= main_x main_y))), 46931#(and (not (= main_x main_y)) (<= main_a_x 114)), 46932#(and (not (= main_x main_y)) (<= main_a_x 115)), 46933#(and (not (= main_x main_y)) (<= main_a_x 116)), 46934#(and (<= main_a_x 117) (not (= main_x main_y))), 46935#(and (not (= main_x main_y)) (<= main_a_x 118)), 46936#(and (not (= main_x main_y)) (<= main_a_x 119)), 46937#(and (not (= main_x main_y)) (<= main_a_x 120)), 46938#(and (not (= main_x main_y)) (<= main_a_x 121)), 46939#(and (not (= main_x main_y)) (<= main_a_x 122)), 46940#(and (<= main_a_x 123) (not (= main_x main_y))), 46941#(and (not (= main_x main_y)) (<= main_a_x 124)), 46942#(and (not (= main_x main_y)) (<= main_a_x 125)), 46943#(and (not (= main_x main_y)) (<= main_a_x 126)), 46944#(and (not (= main_x main_y)) (<= main_a_x 127)), 46945#(and (<= main_a_x 128) (not (= main_x main_y))), 46946#(and (<= main_a_x 129) (not (= main_x main_y))), 46947#(and (not (= main_x main_y)) (<= main_a_x 130)), 46948#(and (not (= main_x main_y)) (<= main_a_x 131)), 46949#(<= main_a_x 132), 46815#true, 46816#false, 46817#(and (not (= main_x main_y)) (<= main_a_x 0)), 46818#(and (not (= main_x main_y)) (<= main_a_x 1)), 46819#(and (not (= main_x main_y)) (<= main_a_x 2)), 46820#(and (not (= main_x main_y)) (<= main_a_x 3)), 46821#(and (<= main_a_x 4) (not (= main_x main_y))), 46822#(and (<= main_a_x 5) (not (= main_x main_y))), 46823#(and (not (= main_x main_y)) (<= main_a_x 6)), 46824#(and (<= main_a_x 7) (not (= main_x main_y))), 46825#(and (not (= main_x main_y)) (<= main_a_x 8)), 46826#(and (not (= main_x main_y)) (<= main_a_x 9)), 46827#(and (<= main_a_x 10) (not (= main_x main_y))), 46828#(and (not (= main_x main_y)) (<= main_a_x 11)), 46829#(and (not (= main_x main_y)) (<= main_a_x 12)), 46830#(and (<= main_a_x 13) (not (= main_x main_y))), 46831#(and (not (= main_x main_y)) (<= main_a_x 14)), 46832#(and (<= main_a_x 15) (not (= main_x main_y))), 46833#(and (not (= main_x main_y)) (<= main_a_x 16)), 46834#(and (not (= main_x main_y)) (<= main_a_x 17)), 46835#(and (<= main_a_x 18) (not (= main_x main_y))), 46836#(and (<= main_a_x 19) (not (= main_x main_y))), 46837#(and (not (= main_x main_y)) (<= main_a_x 20)), 46838#(and (not (= main_x main_y)) (<= main_a_x 21)), 46839#(and (not (= main_x main_y)) (<= main_a_x 22)), 46840#(and (<= main_a_x 23) (not (= main_x main_y))), 46841#(and (not (= main_x main_y)) (<= main_a_x 24)), 46842#(and (<= main_a_x 25) (not (= main_x main_y))), 46843#(and (not (= main_x main_y)) (<= main_a_x 26)), 46844#(and (not (= main_x main_y)) (<= main_a_x 27)), 46845#(and (not (= main_x main_y)) (<= main_a_x 28)), 46846#(and (not (= main_x main_y)) (<= main_a_x 29)), 46847#(and (<= main_a_x 30) (not (= main_x main_y)))] [2018-07-23 13:53:41,476 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 13:53:41,476 INFO L450 AbstractCegarLoop]: Interpolant automaton has 135 states [2018-07-23 13:53:41,478 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 135 interpolants. [2018-07-23 13:53:41,478 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9045, Invalid=9045, Unknown=0, NotChecked=0, Total=18090 [2018-07-23 13:53:41,478 INFO L87 Difference]: Start difference. First operand 136 states and 136 transitions. Second operand 135 states. [2018-07-23 13:53:41,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:41,667 INFO L93 Difference]: Finished difference Result 139 states and 139 transitions. [2018-07-23 13:53:41,667 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2018-07-23 13:53:41,667 INFO L78 Accepts]: Start accepts. Automaton has 135 states. Word has length 135 [2018-07-23 13:53:41,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:41,667 INFO L225 Difference]: With dead ends: 139 [2018-07-23 13:53:41,668 INFO L226 Difference]: Without dead ends: 137 [2018-07-23 13:53:41,668 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=9045, Invalid=9045, Unknown=0, NotChecked=0, Total=18090 [2018-07-23 13:53:41,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2018-07-23 13:53:41,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2018-07-23 13:53:41,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2018-07-23 13:53:41,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 137 transitions. [2018-07-23 13:53:41,672 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 137 transitions. Word has length 135 [2018-07-23 13:53:41,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:41,673 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 137 transitions. [2018-07-23 13:53:41,673 INFO L472 AbstractCegarLoop]: Interpolant automaton has 135 states. [2018-07-23 13:53:41,673 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 137 transitions. [2018-07-23 13:53:41,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-07-23 13:53:41,673 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:41,673 INFO L357 BasicCegarLoop]: trace histogram [133, 1, 1, 1] [2018-07-23 13:53:41,674 INFO L414 AbstractCegarLoop]: === Iteration 134 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:41,674 INFO L82 PathProgramCache]: Analyzing trace with hash 1337629991, now seen corresponding path program 133 times [2018-07-23 13:53:41,674 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:42,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:43,744 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 13:53:43,745 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:43,745 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [135] total 135 [2018-07-23 13:53:43,745 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:43,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:43,745 INFO L185 omatonBuilderFactory]: Interpolants [47616#(and (<= main_a_x 112) (not (= main_x main_y))), 47617#(and (<= main_a_x 113) (not (= main_x main_y))), 47618#(and (not (= main_x main_y)) (<= main_a_x 114)), 47619#(and (not (= main_x main_y)) (<= main_a_x 115)), 47620#(and (not (= main_x main_y)) (<= main_a_x 116)), 47621#(and (<= main_a_x 117) (not (= main_x main_y))), 47622#(and (not (= main_x main_y)) (<= main_a_x 118)), 47623#(and (not (= main_x main_y)) (<= main_a_x 119)), 47624#(and (not (= main_x main_y)) (<= main_a_x 120)), 47625#(and (not (= main_x main_y)) (<= main_a_x 121)), 47626#(and (not (= main_x main_y)) (<= main_a_x 122)), 47627#(and (<= main_a_x 123) (not (= main_x main_y))), 47628#(and (not (= main_x main_y)) (<= main_a_x 124)), 47629#(and (not (= main_x main_y)) (<= main_a_x 125)), 47630#(and (not (= main_x main_y)) (<= main_a_x 126)), 47631#(and (not (= main_x main_y)) (<= main_a_x 127)), 47632#(and (<= main_a_x 128) (not (= main_x main_y))), 47633#(and (<= main_a_x 129) (not (= main_x main_y))), 47634#(and (not (= main_x main_y)) (<= main_a_x 130)), 47635#(and (not (= main_x main_y)) (<= main_a_x 131)), 47636#(and (not (= main_x main_y)) (<= main_a_x 132)), 47637#(<= main_a_x 133), 47502#true, 47503#false, 47504#(and (not (= main_x main_y)) (<= main_a_x 0)), 47505#(and (not (= main_x main_y)) (<= main_a_x 1)), 47506#(and (not (= main_x main_y)) (<= main_a_x 2)), 47507#(and (not (= main_x main_y)) (<= main_a_x 3)), 47508#(and (<= main_a_x 4) (not (= main_x main_y))), 47509#(and (<= main_a_x 5) (not (= main_x main_y))), 47510#(and (not (= main_x main_y)) (<= main_a_x 6)), 47511#(and (<= main_a_x 7) (not (= main_x main_y))), 47512#(and (not (= main_x main_y)) (<= main_a_x 8)), 47513#(and (not (= main_x main_y)) (<= main_a_x 9)), 47514#(and (<= main_a_x 10) (not (= main_x main_y))), 47515#(and (not (= main_x main_y)) (<= main_a_x 11)), 47516#(and (not (= main_x main_y)) (<= main_a_x 12)), 47517#(and (<= main_a_x 13) (not (= main_x main_y))), 47518#(and (not (= main_x main_y)) (<= main_a_x 14)), 47519#(and (<= main_a_x 15) (not (= main_x main_y))), 47520#(and (not (= main_x main_y)) (<= main_a_x 16)), 47521#(and (not (= main_x main_y)) (<= main_a_x 17)), 47522#(and (<= main_a_x 18) (not (= main_x main_y))), 47523#(and (<= main_a_x 19) (not (= main_x main_y))), 47524#(and (not (= main_x main_y)) (<= main_a_x 20)), 47525#(and (not (= main_x main_y)) (<= main_a_x 21)), 47526#(and (not (= main_x main_y)) (<= main_a_x 22)), 47527#(and (<= main_a_x 23) (not (= main_x main_y))), 47528#(and (not (= main_x main_y)) (<= main_a_x 24)), 47529#(and (<= main_a_x 25) (not (= main_x main_y))), 47530#(and (not (= main_x main_y)) (<= main_a_x 26)), 47531#(and (not (= main_x main_y)) (<= main_a_x 27)), 47532#(and (not (= main_x main_y)) (<= main_a_x 28)), 47533#(and (not (= main_x main_y)) (<= main_a_x 29)), 47534#(and (<= main_a_x 30) (not (= main_x main_y))), 47535#(and (<= main_a_x 31) (not (= main_x main_y))), 47536#(and (not (= main_x main_y)) (<= main_a_x 32)), 47537#(and (not (= main_x main_y)) (<= main_a_x 33)), 47538#(and (not (= main_x main_y)) (<= main_a_x 34)), 47539#(and (<= main_a_x 35) (not (= main_x main_y))), 47540#(and (not (= main_x main_y)) (<= main_a_x 36)), 47541#(and (<= main_a_x 37) (not (= main_x main_y))), 47542#(and (not (= main_x main_y)) (<= main_a_x 38)), 47543#(and (<= main_a_x 39) (not (= main_x main_y))), 47544#(and (<= main_a_x 40) (not (= main_x main_y))), 47545#(and (not (= main_x main_y)) (<= main_a_x 41)), 47546#(and (not (= main_x main_y)) (<= main_a_x 42)), 47547#(and (<= main_a_x 43) (not (= main_x main_y))), 47548#(and (<= main_a_x 44) (not (= main_x main_y))), 47549#(and (<= main_a_x 45) (not (= main_x main_y))), 47550#(and (<= main_a_x 46) (not (= main_x main_y))), 47551#(and (<= main_a_x 47) (not (= main_x main_y))), 47552#(and (<= main_a_x 48) (not (= main_x main_y))), 47553#(and (not (= main_x main_y)) (<= main_a_x 49)), 47554#(and (not (= main_x main_y)) (<= main_a_x 50)), 47555#(and (<= main_a_x 51) (not (= main_x main_y))), 47556#(and (not (= main_x main_y)) (<= main_a_x 52)), 47557#(and (<= main_a_x 53) (not (= main_x main_y))), 47558#(and (<= main_a_x 54) (not (= main_x main_y))), 47559#(and (not (= main_x main_y)) (<= main_a_x 55)), 47560#(and (not (= main_x main_y)) (<= main_a_x 56)), 47561#(and (not (= main_x main_y)) (<= main_a_x 57)), 47562#(and (not (= main_x main_y)) (<= main_a_x 58)), 47563#(and (not (= main_x main_y)) (<= main_a_x 59)), 47564#(and (<= main_a_x 60) (not (= main_x main_y))), 47565#(and (not (= main_x main_y)) (<= main_a_x 61)), 47566#(and (not (= main_x main_y)) (<= main_a_x 62)), 47567#(and (<= main_a_x 63) (not (= main_x main_y))), 47568#(and (<= main_a_x 64) (not (= main_x main_y))), 47569#(and (<= main_a_x 65) (not (= main_x main_y))), 47570#(and (<= main_a_x 66) (not (= main_x main_y))), 47571#(and (<= main_a_x 67) (not (= main_x main_y))), 47572#(and (not (= main_x main_y)) (<= main_a_x 68)), 47573#(and (<= main_a_x 69) (not (= main_x main_y))), 47574#(and (<= main_a_x 70) (not (= main_x main_y))), 47575#(and (<= main_a_x 71) (not (= main_x main_y))), 47576#(and (not (= main_x main_y)) (<= main_a_x 72)), 47577#(and (not (= main_x main_y)) (<= main_a_x 73)), 47578#(and (<= main_a_x 74) (not (= main_x main_y))), 47579#(and (<= main_a_x 75) (not (= main_x main_y))), 47580#(and (not (= main_x main_y)) (<= main_a_x 76)), 47581#(and (not (= main_x main_y)) (<= main_a_x 77)), 47582#(and (<= main_a_x 78) (not (= main_x main_y))), 47583#(and (<= main_a_x 79) (not (= main_x main_y))), 47584#(and (not (= main_x main_y)) (<= main_a_x 80)), 47585#(and (not (= main_x main_y)) (<= main_a_x 81)), 47586#(and (not (= main_x main_y)) (<= main_a_x 82)), 47587#(and (not (= main_x main_y)) (<= main_a_x 83)), 47588#(and (<= main_a_x 84) (not (= main_x main_y))), 47589#(and (not (= main_x main_y)) (<= main_a_x 85)), 47590#(and (not (= main_x main_y)) (<= main_a_x 86)), 47591#(and (<= main_a_x 87) (not (= main_x main_y))), 47592#(and (not (= main_x main_y)) (<= main_a_x 88)), 47593#(and (<= main_a_x 89) (not (= main_x main_y))), 47594#(and (not (= main_x main_y)) (<= main_a_x 90)), 47595#(and (<= main_a_x 91) (not (= main_x main_y))), 47596#(and (not (= main_x main_y)) (<= main_a_x 92)), 47597#(and (not (= main_x main_y)) (<= main_a_x 93)), 47598#(and (<= main_a_x 94) (not (= main_x main_y))), 47599#(and (<= main_a_x 95) (not (= main_x main_y))), 47600#(and (not (= main_x main_y)) (<= main_a_x 96)), 47601#(and (<= main_a_x 97) (not (= main_x main_y))), 47602#(and (not (= main_x main_y)) (<= main_a_x 98)), 47603#(and (<= main_a_x 99) (not (= main_x main_y))), 47604#(and (<= main_a_x 100) (not (= main_x main_y))), 47605#(and (not (= main_x main_y)) (<= main_a_x 101)), 47606#(and (not (= main_x main_y)) (<= main_a_x 102)), 47607#(and (not (= main_x main_y)) (<= main_a_x 103)), 47608#(and (<= main_a_x 104) (not (= main_x main_y))), 47609#(and (<= main_a_x 105) (not (= main_x main_y))), 47610#(and (not (= main_x main_y)) (<= main_a_x 106)), 47611#(and (not (= main_x main_y)) (<= main_a_x 107)), 47612#(and (not (= main_x main_y)) (<= main_a_x 108)), 47613#(and (not (= main_x main_y)) (<= main_a_x 109)), 47614#(and (<= main_a_x 110) (not (= main_x main_y))), 47615#(and (not (= main_x main_y)) (<= main_a_x 111))] [2018-07-23 13:53:43,746 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 13:53:43,746 INFO L450 AbstractCegarLoop]: Interpolant automaton has 136 states [2018-07-23 13:53:43,747 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 136 interpolants. [2018-07-23 13:53:43,748 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9180, Invalid=9180, Unknown=0, NotChecked=0, Total=18360 [2018-07-23 13:53:43,748 INFO L87 Difference]: Start difference. First operand 137 states and 137 transitions. Second operand 136 states. [2018-07-23 13:53:43,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:43,936 INFO L93 Difference]: Finished difference Result 140 states and 140 transitions. [2018-07-23 13:53:43,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2018-07-23 13:53:43,936 INFO L78 Accepts]: Start accepts. Automaton has 136 states. Word has length 136 [2018-07-23 13:53:43,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:43,937 INFO L225 Difference]: With dead ends: 140 [2018-07-23 13:53:43,937 INFO L226 Difference]: Without dead ends: 138 [2018-07-23 13:53:43,937 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=9180, Invalid=9180, Unknown=0, NotChecked=0, Total=18360 [2018-07-23 13:53:43,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2018-07-23 13:53:43,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2018-07-23 13:53:43,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2018-07-23 13:53:43,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 138 transitions. [2018-07-23 13:53:43,941 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 138 transitions. Word has length 136 [2018-07-23 13:53:43,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:43,941 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 138 transitions. [2018-07-23 13:53:43,941 INFO L472 AbstractCegarLoop]: Interpolant automaton has 136 states. [2018-07-23 13:53:43,941 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 138 transitions. [2018-07-23 13:53:43,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-07-23 13:53:43,942 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:43,942 INFO L357 BasicCegarLoop]: trace histogram [134, 1, 1, 1] [2018-07-23 13:53:43,942 INFO L414 AbstractCegarLoop]: === Iteration 135 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:43,942 INFO L82 PathProgramCache]: Analyzing trace with hash -1483127860, now seen corresponding path program 134 times [2018-07-23 13:53:43,942 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:44,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:45,736 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 13:53:45,736 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:45,736 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [136] total 136 [2018-07-23 13:53:45,736 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:45,737 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 13:53:45,737 INFO L185 omatonBuilderFactory]: Interpolants [48194#true, 48195#false, 48196#(and (not (= main_x main_y)) (<= main_a_x 0)), 48197#(and (not (= main_x main_y)) (<= main_a_x 1)), 48198#(and (not (= main_x main_y)) (<= main_a_x 2)), 48199#(and (not (= main_x main_y)) (<= main_a_x 3)), 48200#(and (<= main_a_x 4) (not (= main_x main_y))), 48201#(and (<= main_a_x 5) (not (= main_x main_y))), 48202#(and (not (= main_x main_y)) (<= main_a_x 6)), 48203#(and (<= main_a_x 7) (not (= main_x main_y))), 48204#(and (not (= main_x main_y)) (<= main_a_x 8)), 48205#(and (not (= main_x main_y)) (<= main_a_x 9)), 48206#(and (<= main_a_x 10) (not (= main_x main_y))), 48207#(and (not (= main_x main_y)) (<= main_a_x 11)), 48208#(and (not (= main_x main_y)) (<= main_a_x 12)), 48209#(and (<= main_a_x 13) (not (= main_x main_y))), 48210#(and (not (= main_x main_y)) (<= main_a_x 14)), 48211#(and (<= main_a_x 15) (not (= main_x main_y))), 48212#(and (not (= main_x main_y)) (<= main_a_x 16)), 48213#(and (not (= main_x main_y)) (<= main_a_x 17)), 48214#(and (<= main_a_x 18) (not (= main_x main_y))), 48215#(and (<= main_a_x 19) (not (= main_x main_y))), 48216#(and (not (= main_x main_y)) (<= main_a_x 20)), 48217#(and (not (= main_x main_y)) (<= main_a_x 21)), 48218#(and (not (= main_x main_y)) (<= main_a_x 22)), 48219#(and (<= main_a_x 23) (not (= main_x main_y))), 48220#(and (not (= main_x main_y)) (<= main_a_x 24)), 48221#(and (<= main_a_x 25) (not (= main_x main_y))), 48222#(and (not (= main_x main_y)) (<= main_a_x 26)), 48223#(and (not (= main_x main_y)) (<= main_a_x 27)), 48224#(and (not (= main_x main_y)) (<= main_a_x 28)), 48225#(and (not (= main_x main_y)) (<= main_a_x 29)), 48226#(and (<= main_a_x 30) (not (= main_x main_y))), 48227#(and (<= main_a_x 31) (not (= main_x main_y))), 48228#(and (not (= main_x main_y)) (<= main_a_x 32)), 48229#(and (not (= main_x main_y)) (<= main_a_x 33)), 48230#(and (not (= main_x main_y)) (<= main_a_x 34)), 48231#(and (<= main_a_x 35) (not (= main_x main_y))), 48232#(and (not (= main_x main_y)) (<= main_a_x 36)), 48233#(and (<= main_a_x 37) (not (= main_x main_y))), 48234#(and (not (= main_x main_y)) (<= main_a_x 38)), 48235#(and (<= main_a_x 39) (not (= main_x main_y))), 48236#(and (<= main_a_x 40) (not (= main_x main_y))), 48237#(and (not (= main_x main_y)) (<= main_a_x 41)), 48238#(and (not (= main_x main_y)) (<= main_a_x 42)), 48239#(and (<= main_a_x 43) (not (= main_x main_y))), 48240#(and (<= main_a_x 44) (not (= main_x main_y))), 48241#(and (<= main_a_x 45) (not (= main_x main_y))), 48242#(and (<= main_a_x 46) (not (= main_x main_y))), 48243#(and (<= main_a_x 47) (not (= main_x main_y))), 48244#(and (<= main_a_x 48) (not (= main_x main_y))), 48245#(and (not (= main_x main_y)) (<= main_a_x 49)), 48246#(and (not (= main_x main_y)) (<= main_a_x 50)), 48247#(and (<= main_a_x 51) (not (= main_x main_y))), 48248#(and (not (= main_x main_y)) (<= main_a_x 52)), 48249#(and (<= main_a_x 53) (not (= main_x main_y))), 48250#(and (<= main_a_x 54) (not (= main_x main_y))), 48251#(and (not (= main_x main_y)) (<= main_a_x 55)), 48252#(and (not (= main_x main_y)) (<= main_a_x 56)), 48253#(and (not (= main_x main_y)) (<= main_a_x 57)), 48254#(and (not (= main_x main_y)) (<= main_a_x 58)), 48255#(and (not (= main_x main_y)) (<= main_a_x 59)), 48256#(and (<= main_a_x 60) (not (= main_x main_y))), 48257#(and (not (= main_x main_y)) (<= main_a_x 61)), 48258#(and (not (= main_x main_y)) (<= main_a_x 62)), 48259#(and (<= main_a_x 63) (not (= main_x main_y))), 48260#(and (<= main_a_x 64) (not (= main_x main_y))), 48261#(and (<= main_a_x 65) (not (= main_x main_y))), 48262#(and (<= main_a_x 66) (not (= main_x main_y))), 48263#(and (<= main_a_x 67) (not (= main_x main_y))), 48264#(and (not (= main_x main_y)) (<= main_a_x 68)), 48265#(and (<= main_a_x 69) (not (= main_x main_y))), 48266#(and (<= main_a_x 70) (not (= main_x main_y))), 48267#(and (<= main_a_x 71) (not (= main_x main_y))), 48268#(and (not (= main_x main_y)) (<= main_a_x 72)), 48269#(and (not (= main_x main_y)) (<= main_a_x 73)), 48270#(and (<= main_a_x 74) (not (= main_x main_y))), 48271#(and (<= main_a_x 75) (not (= main_x main_y))), 48272#(and (not (= main_x main_y)) (<= main_a_x 76)), 48273#(and (not (= main_x main_y)) (<= main_a_x 77)), 48274#(and (<= main_a_x 78) (not (= main_x main_y))), 48275#(and (<= main_a_x 79) (not (= main_x main_y))), 48276#(and (not (= main_x main_y)) (<= main_a_x 80)), 48277#(and (not (= main_x main_y)) (<= main_a_x 81)), 48278#(and (not (= main_x main_y)) (<= main_a_x 82)), 48279#(and (not (= main_x main_y)) (<= main_a_x 83)), 48280#(and (<= main_a_x 84) (not (= main_x main_y))), 48281#(and (not (= main_x main_y)) (<= main_a_x 85)), 48282#(and (not (= main_x main_y)) (<= main_a_x 86)), 48283#(and (<= main_a_x 87) (not (= main_x main_y))), 48284#(and (not (= main_x main_y)) (<= main_a_x 88)), 48285#(and (<= main_a_x 89) (not (= main_x main_y))), 48286#(and (not (= main_x main_y)) (<= main_a_x 90)), 48287#(and (<= main_a_x 91) (not (= main_x main_y))), 48288#(and (not (= main_x main_y)) (<= main_a_x 92)), 48289#(and (not (= main_x main_y)) (<= main_a_x 93)), 48290#(and (<= main_a_x 94) (not (= main_x main_y))), 48291#(and (<= main_a_x 95) (not (= main_x main_y))), 48292#(and (not (= main_x main_y)) (<= main_a_x 96)), 48293#(and (<= main_a_x 97) (not (= main_x main_y))), 48294#(and (not (= main_x main_y)) (<= main_a_x 98)), 48295#(and (<= main_a_x 99) (not (= main_x main_y))), 48296#(and (<= main_a_x 100) (not (= main_x main_y))), 48297#(and (not (= main_x main_y)) (<= main_a_x 101)), 48298#(and (not (= main_x main_y)) (<= main_a_x 102)), 48299#(and (not (= main_x main_y)) (<= main_a_x 103)), 48300#(and (<= main_a_x 104) (not (= main_x main_y))), 48301#(and (<= main_a_x 105) (not (= main_x main_y))), 48302#(and (not (= main_x main_y)) (<= main_a_x 106)), 48303#(and (not (= main_x main_y)) (<= main_a_x 107)), 48304#(and (not (= main_x main_y)) (<= main_a_x 108)), 48305#(and (not (= main_x main_y)) (<= main_a_x 109)), 48306#(and (<= main_a_x 110) (not (= main_x main_y))), 48307#(and (not (= main_x main_y)) (<= main_a_x 111)), 48308#(and (<= main_a_x 112) (not (= main_x main_y))), 48309#(and (<= main_a_x 113) (not (= main_x main_y))), 48310#(and (not (= main_x main_y)) (<= main_a_x 114)), 48311#(and (not (= main_x main_y)) (<= main_a_x 115)), 48312#(and (not (= main_x main_y)) (<= main_a_x 116)), 48313#(and (<= main_a_x 117) (not (= main_x main_y))), 48314#(and (not (= main_x main_y)) (<= main_a_x 118)), 48315#(and (not (= main_x main_y)) (<= main_a_x 119)), 48316#(and (not (= main_x main_y)) (<= main_a_x 120)), 48317#(and (not (= main_x main_y)) (<= main_a_x 121)), 48318#(and (not (= main_x main_y)) (<= main_a_x 122)), 48319#(and (<= main_a_x 123) (not (= main_x main_y))), 48320#(and (not (= main_x main_y)) (<= main_a_x 124)), 48321#(and (not (= main_x main_y)) (<= main_a_x 125)), 48322#(and (not (= main_x main_y)) (<= main_a_x 126)), 48323#(and (not (= main_x main_y)) (<= main_a_x 127)), 48324#(and (<= main_a_x 128) (not (= main_x main_y))), 48325#(and (<= main_a_x 129) (not (= main_x main_y))), 48326#(and (not (= main_x main_y)) (<= main_a_x 130)), 48327#(and (not (= main_x main_y)) (<= main_a_x 131)), 48328#(and (not (= main_x main_y)) (<= main_a_x 132)), 48329#(and (not (= main_x main_y)) (<= main_a_x 133)), 48330#(<= main_a_x 134)] [2018-07-23 13:53:45,737 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 13:53:45,738 INFO L450 AbstractCegarLoop]: Interpolant automaton has 137 states [2018-07-23 13:53:45,739 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 137 interpolants. [2018-07-23 13:53:45,739 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9316, Invalid=9316, Unknown=0, NotChecked=0, Total=18632 [2018-07-23 13:53:45,740 INFO L87 Difference]: Start difference. First operand 138 states and 138 transitions. Second operand 137 states. [2018-07-23 13:53:45,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:45,958 INFO L93 Difference]: Finished difference Result 141 states and 141 transitions. [2018-07-23 13:53:45,958 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2018-07-23 13:53:45,958 INFO L78 Accepts]: Start accepts. Automaton has 137 states. Word has length 137 [2018-07-23 13:53:45,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:45,959 INFO L225 Difference]: With dead ends: 141 [2018-07-23 13:53:45,959 INFO L226 Difference]: Without dead ends: 139 [2018-07-23 13:53:45,960 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=9316, Invalid=9316, Unknown=0, NotChecked=0, Total=18632 [2018-07-23 13:53:45,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2018-07-23 13:53:45,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2018-07-23 13:53:45,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2018-07-23 13:53:45,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 139 transitions. [2018-07-23 13:53:45,964 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 139 transitions. Word has length 137 [2018-07-23 13:53:45,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:45,964 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 139 transitions. [2018-07-23 13:53:45,964 INFO L472 AbstractCegarLoop]: Interpolant automaton has 137 states. [2018-07-23 13:53:45,964 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 139 transitions. [2018-07-23 13:53:45,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-07-23 13:53:45,965 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:45,965 INFO L357 BasicCegarLoop]: trace histogram [135, 1, 1, 1] [2018-07-23 13:53:45,965 INFO L414 AbstractCegarLoop]: === Iteration 136 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:45,965 INFO L82 PathProgramCache]: Analyzing trace with hash 1267691975, now seen corresponding path program 135 times [2018-07-23 13:53:45,965 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:46,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:47,881 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 13:53:47,882 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:47,882 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [137] total 137 [2018-07-23 13:53:47,882 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:47,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:47,883 INFO L185 omatonBuilderFactory]: Interpolants [48896#(and (not (= main_x main_y)) (<= main_a_x 3)), 48897#(and (<= main_a_x 4) (not (= main_x main_y))), 48898#(and (<= main_a_x 5) (not (= main_x main_y))), 48899#(and (not (= main_x main_y)) (<= main_a_x 6)), 48900#(and (<= main_a_x 7) (not (= main_x main_y))), 48901#(and (not (= main_x main_y)) (<= main_a_x 8)), 48902#(and (not (= main_x main_y)) (<= main_a_x 9)), 48903#(and (<= main_a_x 10) (not (= main_x main_y))), 48904#(and (not (= main_x main_y)) (<= main_a_x 11)), 48905#(and (not (= main_x main_y)) (<= main_a_x 12)), 48906#(and (<= main_a_x 13) (not (= main_x main_y))), 48907#(and (not (= main_x main_y)) (<= main_a_x 14)), 48908#(and (<= main_a_x 15) (not (= main_x main_y))), 48909#(and (not (= main_x main_y)) (<= main_a_x 16)), 48910#(and (not (= main_x main_y)) (<= main_a_x 17)), 48911#(and (<= main_a_x 18) (not (= main_x main_y))), 48912#(and (<= main_a_x 19) (not (= main_x main_y))), 48913#(and (not (= main_x main_y)) (<= main_a_x 20)), 48914#(and (not (= main_x main_y)) (<= main_a_x 21)), 48915#(and (not (= main_x main_y)) (<= main_a_x 22)), 48916#(and (<= main_a_x 23) (not (= main_x main_y))), 48917#(and (not (= main_x main_y)) (<= main_a_x 24)), 48918#(and (<= main_a_x 25) (not (= main_x main_y))), 48919#(and (not (= main_x main_y)) (<= main_a_x 26)), 48920#(and (not (= main_x main_y)) (<= main_a_x 27)), 48921#(and (not (= main_x main_y)) (<= main_a_x 28)), 48922#(and (not (= main_x main_y)) (<= main_a_x 29)), 48923#(and (<= main_a_x 30) (not (= main_x main_y))), 48924#(and (<= main_a_x 31) (not (= main_x main_y))), 48925#(and (not (= main_x main_y)) (<= main_a_x 32)), 48926#(and (not (= main_x main_y)) (<= main_a_x 33)), 48927#(and (not (= main_x main_y)) (<= main_a_x 34)), 48928#(and (<= main_a_x 35) (not (= main_x main_y))), 48929#(and (not (= main_x main_y)) (<= main_a_x 36)), 48930#(and (<= main_a_x 37) (not (= main_x main_y))), 48931#(and (not (= main_x main_y)) (<= main_a_x 38)), 48932#(and (<= main_a_x 39) (not (= main_x main_y))), 48933#(and (<= main_a_x 40) (not (= main_x main_y))), 48934#(and (not (= main_x main_y)) (<= main_a_x 41)), 48935#(and (not (= main_x main_y)) (<= main_a_x 42)), 48936#(and (<= main_a_x 43) (not (= main_x main_y))), 48937#(and (<= main_a_x 44) (not (= main_x main_y))), 48938#(and (<= main_a_x 45) (not (= main_x main_y))), 48939#(and (<= main_a_x 46) (not (= main_x main_y))), 48940#(and (<= main_a_x 47) (not (= main_x main_y))), 48941#(and (<= main_a_x 48) (not (= main_x main_y))), 48942#(and (not (= main_x main_y)) (<= main_a_x 49)), 48943#(and (not (= main_x main_y)) (<= main_a_x 50)), 48944#(and (<= main_a_x 51) (not (= main_x main_y))), 48945#(and (not (= main_x main_y)) (<= main_a_x 52)), 48946#(and (<= main_a_x 53) (not (= main_x main_y))), 48947#(and (<= main_a_x 54) (not (= main_x main_y))), 48948#(and (not (= main_x main_y)) (<= main_a_x 55)), 48949#(and (not (= main_x main_y)) (<= main_a_x 56)), 48950#(and (not (= main_x main_y)) (<= main_a_x 57)), 48951#(and (not (= main_x main_y)) (<= main_a_x 58)), 48952#(and (not (= main_x main_y)) (<= main_a_x 59)), 48953#(and (<= main_a_x 60) (not (= main_x main_y))), 48954#(and (not (= main_x main_y)) (<= main_a_x 61)), 48955#(and (not (= main_x main_y)) (<= main_a_x 62)), 48956#(and (<= main_a_x 63) (not (= main_x main_y))), 48957#(and (<= main_a_x 64) (not (= main_x main_y))), 48958#(and (<= main_a_x 65) (not (= main_x main_y))), 48959#(and (<= main_a_x 66) (not (= main_x main_y))), 48960#(and (<= main_a_x 67) (not (= main_x main_y))), 48961#(and (not (= main_x main_y)) (<= main_a_x 68)), 48962#(and (<= main_a_x 69) (not (= main_x main_y))), 48963#(and (<= main_a_x 70) (not (= main_x main_y))), 48964#(and (<= main_a_x 71) (not (= main_x main_y))), 48965#(and (not (= main_x main_y)) (<= main_a_x 72)), 48966#(and (not (= main_x main_y)) (<= main_a_x 73)), 48967#(and (<= main_a_x 74) (not (= main_x main_y))), 48968#(and (<= main_a_x 75) (not (= main_x main_y))), 48969#(and (not (= main_x main_y)) (<= main_a_x 76)), 48970#(and (not (= main_x main_y)) (<= main_a_x 77)), 48971#(and (<= main_a_x 78) (not (= main_x main_y))), 48972#(and (<= main_a_x 79) (not (= main_x main_y))), 48973#(and (not (= main_x main_y)) (<= main_a_x 80)), 48974#(and (not (= main_x main_y)) (<= main_a_x 81)), 48975#(and (not (= main_x main_y)) (<= main_a_x 82)), 48976#(and (not (= main_x main_y)) (<= main_a_x 83)), 48977#(and (<= main_a_x 84) (not (= main_x main_y))), 48978#(and (not (= main_x main_y)) (<= main_a_x 85)), 48979#(and (not (= main_x main_y)) (<= main_a_x 86)), 48980#(and (<= main_a_x 87) (not (= main_x main_y))), 48981#(and (not (= main_x main_y)) (<= main_a_x 88)), 48982#(and (<= main_a_x 89) (not (= main_x main_y))), 48983#(and (not (= main_x main_y)) (<= main_a_x 90)), 48984#(and (<= main_a_x 91) (not (= main_x main_y))), 48985#(and (not (= main_x main_y)) (<= main_a_x 92)), 48986#(and (not (= main_x main_y)) (<= main_a_x 93)), 48987#(and (<= main_a_x 94) (not (= main_x main_y))), 48988#(and (<= main_a_x 95) (not (= main_x main_y))), 48989#(and (not (= main_x main_y)) (<= main_a_x 96)), 48990#(and (<= main_a_x 97) (not (= main_x main_y))), 48991#(and (not (= main_x main_y)) (<= main_a_x 98)), 48992#(and (<= main_a_x 99) (not (= main_x main_y))), 48993#(and (<= main_a_x 100) (not (= main_x main_y))), 48994#(and (not (= main_x main_y)) (<= main_a_x 101)), 48995#(and (not (= main_x main_y)) (<= main_a_x 102)), 48996#(and (not (= main_x main_y)) (<= main_a_x 103)), 48997#(and (<= main_a_x 104) (not (= main_x main_y))), 48998#(and (<= main_a_x 105) (not (= main_x main_y))), 48999#(and (not (= main_x main_y)) (<= main_a_x 106)), 49000#(and (not (= main_x main_y)) (<= main_a_x 107)), 49001#(and (not (= main_x main_y)) (<= main_a_x 108)), 49002#(and (not (= main_x main_y)) (<= main_a_x 109)), 49003#(and (<= main_a_x 110) (not (= main_x main_y))), 49004#(and (not (= main_x main_y)) (<= main_a_x 111)), 49005#(and (<= main_a_x 112) (not (= main_x main_y))), 49006#(and (<= main_a_x 113) (not (= main_x main_y))), 49007#(and (not (= main_x main_y)) (<= main_a_x 114)), 49008#(and (not (= main_x main_y)) (<= main_a_x 115)), 49009#(and (not (= main_x main_y)) (<= main_a_x 116)), 49010#(and (<= main_a_x 117) (not (= main_x main_y))), 49011#(and (not (= main_x main_y)) (<= main_a_x 118)), 49012#(and (not (= main_x main_y)) (<= main_a_x 119)), 49013#(and (not (= main_x main_y)) (<= main_a_x 120)), 49014#(and (not (= main_x main_y)) (<= main_a_x 121)), 49015#(and (not (= main_x main_y)) (<= main_a_x 122)), 49016#(and (<= main_a_x 123) (not (= main_x main_y))), 49017#(and (not (= main_x main_y)) (<= main_a_x 124)), 49018#(and (not (= main_x main_y)) (<= main_a_x 125)), 49019#(and (not (= main_x main_y)) (<= main_a_x 126)), 49020#(and (not (= main_x main_y)) (<= main_a_x 127)), 49021#(and (<= main_a_x 128) (not (= main_x main_y))), 49022#(and (<= main_a_x 129) (not (= main_x main_y))), 49023#(and (not (= main_x main_y)) (<= main_a_x 130)), 49024#(and (not (= main_x main_y)) (<= main_a_x 131)), 49025#(and (not (= main_x main_y)) (<= main_a_x 132)), 49026#(and (not (= main_x main_y)) (<= main_a_x 133)), 49027#(and (not (= main_x main_y)) (<= main_a_x 134)), 49028#(<= main_a_x 135), 48891#true, 48892#false, 48893#(and (not (= main_x main_y)) (<= main_a_x 0)), 48894#(and (not (= main_x main_y)) (<= main_a_x 1)), 48895#(and (not (= main_x main_y)) (<= main_a_x 2))] [2018-07-23 13:53:47,883 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 13:53:47,883 INFO L450 AbstractCegarLoop]: Interpolant automaton has 138 states [2018-07-23 13:53:47,885 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 138 interpolants. [2018-07-23 13:53:47,885 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9453, Invalid=9453, Unknown=0, NotChecked=0, Total=18906 [2018-07-23 13:53:47,885 INFO L87 Difference]: Start difference. First operand 139 states and 139 transitions. Second operand 138 states. [2018-07-23 13:53:48,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:48,174 INFO L93 Difference]: Finished difference Result 142 states and 142 transitions. [2018-07-23 13:53:48,174 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2018-07-23 13:53:48,174 INFO L78 Accepts]: Start accepts. Automaton has 138 states. Word has length 138 [2018-07-23 13:53:48,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:48,174 INFO L225 Difference]: With dead ends: 142 [2018-07-23 13:53:48,174 INFO L226 Difference]: Without dead ends: 140 [2018-07-23 13:53:48,175 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=9453, Invalid=9453, Unknown=0, NotChecked=0, Total=18906 [2018-07-23 13:53:48,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2018-07-23 13:53:48,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2018-07-23 13:53:48,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2018-07-23 13:53:48,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 140 transitions. [2018-07-23 13:53:48,178 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 140 transitions. Word has length 138 [2018-07-23 13:53:48,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:48,179 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 140 transitions. [2018-07-23 13:53:48,179 INFO L472 AbstractCegarLoop]: Interpolant automaton has 138 states. [2018-07-23 13:53:48,179 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 140 transitions. [2018-07-23 13:53:48,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2018-07-23 13:53:48,179 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:48,179 INFO L357 BasicCegarLoop]: trace histogram [136, 1, 1, 1] [2018-07-23 13:53:48,179 INFO L414 AbstractCegarLoop]: === Iteration 137 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:48,179 INFO L82 PathProgramCache]: Analyzing trace with hash 643760940, now seen corresponding path program 136 times [2018-07-23 13:53:48,179 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:48,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:50,025 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 13:53:50,025 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:50,026 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [138] total 138 [2018-07-23 13:53:50,026 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:50,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:50,026 INFO L185 omatonBuilderFactory]: Interpolants [49664#(and (<= main_a_x 69) (not (= main_x main_y))), 49665#(and (<= main_a_x 70) (not (= main_x main_y))), 49666#(and (<= main_a_x 71) (not (= main_x main_y))), 49667#(and (not (= main_x main_y)) (<= main_a_x 72)), 49668#(and (not (= main_x main_y)) (<= main_a_x 73)), 49669#(and (<= main_a_x 74) (not (= main_x main_y))), 49670#(and (<= main_a_x 75) (not (= main_x main_y))), 49671#(and (not (= main_x main_y)) (<= main_a_x 76)), 49672#(and (not (= main_x main_y)) (<= main_a_x 77)), 49673#(and (<= main_a_x 78) (not (= main_x main_y))), 49674#(and (<= main_a_x 79) (not (= main_x main_y))), 49675#(and (not (= main_x main_y)) (<= main_a_x 80)), 49676#(and (not (= main_x main_y)) (<= main_a_x 81)), 49677#(and (not (= main_x main_y)) (<= main_a_x 82)), 49678#(and (not (= main_x main_y)) (<= main_a_x 83)), 49679#(and (<= main_a_x 84) (not (= main_x main_y))), 49680#(and (not (= main_x main_y)) (<= main_a_x 85)), 49681#(and (not (= main_x main_y)) (<= main_a_x 86)), 49682#(and (<= main_a_x 87) (not (= main_x main_y))), 49683#(and (not (= main_x main_y)) (<= main_a_x 88)), 49684#(and (<= main_a_x 89) (not (= main_x main_y))), 49685#(and (not (= main_x main_y)) (<= main_a_x 90)), 49686#(and (<= main_a_x 91) (not (= main_x main_y))), 49687#(and (not (= main_x main_y)) (<= main_a_x 92)), 49688#(and (not (= main_x main_y)) (<= main_a_x 93)), 49689#(and (<= main_a_x 94) (not (= main_x main_y))), 49690#(and (<= main_a_x 95) (not (= main_x main_y))), 49691#(and (not (= main_x main_y)) (<= main_a_x 96)), 49692#(and (<= main_a_x 97) (not (= main_x main_y))), 49693#(and (not (= main_x main_y)) (<= main_a_x 98)), 49694#(and (<= main_a_x 99) (not (= main_x main_y))), 49695#(and (<= main_a_x 100) (not (= main_x main_y))), 49696#(and (not (= main_x main_y)) (<= main_a_x 101)), 49697#(and (not (= main_x main_y)) (<= main_a_x 102)), 49698#(and (not (= main_x main_y)) (<= main_a_x 103)), 49699#(and (<= main_a_x 104) (not (= main_x main_y))), 49700#(and (<= main_a_x 105) (not (= main_x main_y))), 49701#(and (not (= main_x main_y)) (<= main_a_x 106)), 49702#(and (not (= main_x main_y)) (<= main_a_x 107)), 49703#(and (not (= main_x main_y)) (<= main_a_x 108)), 49704#(and (not (= main_x main_y)) (<= main_a_x 109)), 49705#(and (<= main_a_x 110) (not (= main_x main_y))), 49706#(and (not (= main_x main_y)) (<= main_a_x 111)), 49707#(and (<= main_a_x 112) (not (= main_x main_y))), 49708#(and (<= main_a_x 113) (not (= main_x main_y))), 49709#(and (not (= main_x main_y)) (<= main_a_x 114)), 49710#(and (not (= main_x main_y)) (<= main_a_x 115)), 49711#(and (not (= main_x main_y)) (<= main_a_x 116)), 49712#(and (<= main_a_x 117) (not (= main_x main_y))), 49713#(and (not (= main_x main_y)) (<= main_a_x 118)), 49714#(and (not (= main_x main_y)) (<= main_a_x 119)), 49715#(and (not (= main_x main_y)) (<= main_a_x 120)), 49716#(and (not (= main_x main_y)) (<= main_a_x 121)), 49717#(and (not (= main_x main_y)) (<= main_a_x 122)), 49718#(and (<= main_a_x 123) (not (= main_x main_y))), 49719#(and (not (= main_x main_y)) (<= main_a_x 124)), 49720#(and (not (= main_x main_y)) (<= main_a_x 125)), 49721#(and (not (= main_x main_y)) (<= main_a_x 126)), 49722#(and (not (= main_x main_y)) (<= main_a_x 127)), 49723#(and (<= main_a_x 128) (not (= main_x main_y))), 49724#(and (<= main_a_x 129) (not (= main_x main_y))), 49725#(and (not (= main_x main_y)) (<= main_a_x 130)), 49726#(and (not (= main_x main_y)) (<= main_a_x 131)), 49727#(and (not (= main_x main_y)) (<= main_a_x 132)), 49728#(and (not (= main_x main_y)) (<= main_a_x 133)), 49729#(and (not (= main_x main_y)) (<= main_a_x 134)), 49730#(and (<= main_a_x 135) (not (= main_x main_y))), 49731#(<= main_a_x 136), 49593#true, 49594#false, 49595#(and (not (= main_x main_y)) (<= main_a_x 0)), 49596#(and (not (= main_x main_y)) (<= main_a_x 1)), 49597#(and (not (= main_x main_y)) (<= main_a_x 2)), 49598#(and (not (= main_x main_y)) (<= main_a_x 3)), 49599#(and (<= main_a_x 4) (not (= main_x main_y))), 49600#(and (<= main_a_x 5) (not (= main_x main_y))), 49601#(and (not (= main_x main_y)) (<= main_a_x 6)), 49602#(and (<= main_a_x 7) (not (= main_x main_y))), 49603#(and (not (= main_x main_y)) (<= main_a_x 8)), 49604#(and (not (= main_x main_y)) (<= main_a_x 9)), 49605#(and (<= main_a_x 10) (not (= main_x main_y))), 49606#(and (not (= main_x main_y)) (<= main_a_x 11)), 49607#(and (not (= main_x main_y)) (<= main_a_x 12)), 49608#(and (<= main_a_x 13) (not (= main_x main_y))), 49609#(and (not (= main_x main_y)) (<= main_a_x 14)), 49610#(and (<= main_a_x 15) (not (= main_x main_y))), 49611#(and (not (= main_x main_y)) (<= main_a_x 16)), 49612#(and (not (= main_x main_y)) (<= main_a_x 17)), 49613#(and (<= main_a_x 18) (not (= main_x main_y))), 49614#(and (<= main_a_x 19) (not (= main_x main_y))), 49615#(and (not (= main_x main_y)) (<= main_a_x 20)), 49616#(and (not (= main_x main_y)) (<= main_a_x 21)), 49617#(and (not (= main_x main_y)) (<= main_a_x 22)), 49618#(and (<= main_a_x 23) (not (= main_x main_y))), 49619#(and (not (= main_x main_y)) (<= main_a_x 24)), 49620#(and (<= main_a_x 25) (not (= main_x main_y))), 49621#(and (not (= main_x main_y)) (<= main_a_x 26)), 49622#(and (not (= main_x main_y)) (<= main_a_x 27)), 49623#(and (not (= main_x main_y)) (<= main_a_x 28)), 49624#(and (not (= main_x main_y)) (<= main_a_x 29)), 49625#(and (<= main_a_x 30) (not (= main_x main_y))), 49626#(and (<= main_a_x 31) (not (= main_x main_y))), 49627#(and (not (= main_x main_y)) (<= main_a_x 32)), 49628#(and (not (= main_x main_y)) (<= main_a_x 33)), 49629#(and (not (= main_x main_y)) (<= main_a_x 34)), 49630#(and (<= main_a_x 35) (not (= main_x main_y))), 49631#(and (not (= main_x main_y)) (<= main_a_x 36)), 49632#(and (<= main_a_x 37) (not (= main_x main_y))), 49633#(and (not (= main_x main_y)) (<= main_a_x 38)), 49634#(and (<= main_a_x 39) (not (= main_x main_y))), 49635#(and (<= main_a_x 40) (not (= main_x main_y))), 49636#(and (not (= main_x main_y)) (<= main_a_x 41)), 49637#(and (not (= main_x main_y)) (<= main_a_x 42)), 49638#(and (<= main_a_x 43) (not (= main_x main_y))), 49639#(and (<= main_a_x 44) (not (= main_x main_y))), 49640#(and (<= main_a_x 45) (not (= main_x main_y))), 49641#(and (<= main_a_x 46) (not (= main_x main_y))), 49642#(and (<= main_a_x 47) (not (= main_x main_y))), 49643#(and (<= main_a_x 48) (not (= main_x main_y))), 49644#(and (not (= main_x main_y)) (<= main_a_x 49)), 49645#(and (not (= main_x main_y)) (<= main_a_x 50)), 49646#(and (<= main_a_x 51) (not (= main_x main_y))), 49647#(and (not (= main_x main_y)) (<= main_a_x 52)), 49648#(and (<= main_a_x 53) (not (= main_x main_y))), 49649#(and (<= main_a_x 54) (not (= main_x main_y))), 49650#(and (not (= main_x main_y)) (<= main_a_x 55)), 49651#(and (not (= main_x main_y)) (<= main_a_x 56)), 49652#(and (not (= main_x main_y)) (<= main_a_x 57)), 49653#(and (not (= main_x main_y)) (<= main_a_x 58)), 49654#(and (not (= main_x main_y)) (<= main_a_x 59)), 49655#(and (<= main_a_x 60) (not (= main_x main_y))), 49656#(and (not (= main_x main_y)) (<= main_a_x 61)), 49657#(and (not (= main_x main_y)) (<= main_a_x 62)), 49658#(and (<= main_a_x 63) (not (= main_x main_y))), 49659#(and (<= main_a_x 64) (not (= main_x main_y))), 49660#(and (<= main_a_x 65) (not (= main_x main_y))), 49661#(and (<= main_a_x 66) (not (= main_x main_y))), 49662#(and (<= main_a_x 67) (not (= main_x main_y))), 49663#(and (not (= main_x main_y)) (<= main_a_x 68))] [2018-07-23 13:53:50,028 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 13:53:50,028 INFO L450 AbstractCegarLoop]: Interpolant automaton has 139 states [2018-07-23 13:53:50,029 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 139 interpolants. [2018-07-23 13:53:50,030 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9591, Invalid=9591, Unknown=0, NotChecked=0, Total=19182 [2018-07-23 13:53:50,030 INFO L87 Difference]: Start difference. First operand 140 states and 140 transitions. Second operand 139 states. [2018-07-23 13:53:50,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:50,140 INFO L93 Difference]: Finished difference Result 143 states and 143 transitions. [2018-07-23 13:53:50,140 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 139 states. [2018-07-23 13:53:50,140 INFO L78 Accepts]: Start accepts. Automaton has 139 states. Word has length 139 [2018-07-23 13:53:50,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:50,140 INFO L225 Difference]: With dead ends: 143 [2018-07-23 13:53:50,141 INFO L226 Difference]: Without dead ends: 141 [2018-07-23 13:53:50,142 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=9591, Invalid=9591, Unknown=0, NotChecked=0, Total=19182 [2018-07-23 13:53:50,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2018-07-23 13:53:50,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2018-07-23 13:53:50,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2018-07-23 13:53:50,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 141 transitions. [2018-07-23 13:53:50,146 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 141 transitions. Word has length 139 [2018-07-23 13:53:50,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:50,146 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 141 transitions. [2018-07-23 13:53:50,146 INFO L472 AbstractCegarLoop]: Interpolant automaton has 139 states. [2018-07-23 13:53:50,147 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 141 transitions. [2018-07-23 13:53:50,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-07-23 13:53:50,147 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:50,147 INFO L357 BasicCegarLoop]: trace histogram [137, 1, 1, 1] [2018-07-23 13:53:50,147 INFO L414 AbstractCegarLoop]: === Iteration 138 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:50,147 INFO L82 PathProgramCache]: Analyzing trace with hash -1518231961, now seen corresponding path program 137 times [2018-07-23 13:53:50,147 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:50,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:52,110 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 13:53:52,110 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:52,110 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [139] total 139 [2018-07-23 13:53:52,111 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:52,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:52,111 INFO L185 omatonBuilderFactory]: Interpolants [50432#(and (not (= main_x main_y)) (<= main_a_x 130)), 50433#(and (not (= main_x main_y)) (<= main_a_x 131)), 50434#(and (not (= main_x main_y)) (<= main_a_x 132)), 50435#(and (not (= main_x main_y)) (<= main_a_x 133)), 50436#(and (not (= main_x main_y)) (<= main_a_x 134)), 50437#(and (<= main_a_x 135) (not (= main_x main_y))), 50438#(and (<= main_a_x 136) (not (= main_x main_y))), 50439#(<= main_a_x 137), 50300#true, 50301#false, 50302#(and (not (= main_x main_y)) (<= main_a_x 0)), 50303#(and (not (= main_x main_y)) (<= main_a_x 1)), 50304#(and (not (= main_x main_y)) (<= main_a_x 2)), 50305#(and (not (= main_x main_y)) (<= main_a_x 3)), 50306#(and (<= main_a_x 4) (not (= main_x main_y))), 50307#(and (<= main_a_x 5) (not (= main_x main_y))), 50308#(and (not (= main_x main_y)) (<= main_a_x 6)), 50309#(and (<= main_a_x 7) (not (= main_x main_y))), 50310#(and (not (= main_x main_y)) (<= main_a_x 8)), 50311#(and (not (= main_x main_y)) (<= main_a_x 9)), 50312#(and (<= main_a_x 10) (not (= main_x main_y))), 50313#(and (not (= main_x main_y)) (<= main_a_x 11)), 50314#(and (not (= main_x main_y)) (<= main_a_x 12)), 50315#(and (<= main_a_x 13) (not (= main_x main_y))), 50316#(and (not (= main_x main_y)) (<= main_a_x 14)), 50317#(and (<= main_a_x 15) (not (= main_x main_y))), 50318#(and (not (= main_x main_y)) (<= main_a_x 16)), 50319#(and (not (= main_x main_y)) (<= main_a_x 17)), 50320#(and (<= main_a_x 18) (not (= main_x main_y))), 50321#(and (<= main_a_x 19) (not (= main_x main_y))), 50322#(and (not (= main_x main_y)) (<= main_a_x 20)), 50323#(and (not (= main_x main_y)) (<= main_a_x 21)), 50324#(and (not (= main_x main_y)) (<= main_a_x 22)), 50325#(and (<= main_a_x 23) (not (= main_x main_y))), 50326#(and (not (= main_x main_y)) (<= main_a_x 24)), 50327#(and (<= main_a_x 25) (not (= main_x main_y))), 50328#(and (not (= main_x main_y)) (<= main_a_x 26)), 50329#(and (not (= main_x main_y)) (<= main_a_x 27)), 50330#(and (not (= main_x main_y)) (<= main_a_x 28)), 50331#(and (not (= main_x main_y)) (<= main_a_x 29)), 50332#(and (<= main_a_x 30) (not (= main_x main_y))), 50333#(and (<= main_a_x 31) (not (= main_x main_y))), 50334#(and (not (= main_x main_y)) (<= main_a_x 32)), 50335#(and (not (= main_x main_y)) (<= main_a_x 33)), 50336#(and (not (= main_x main_y)) (<= main_a_x 34)), 50337#(and (<= main_a_x 35) (not (= main_x main_y))), 50338#(and (not (= main_x main_y)) (<= main_a_x 36)), 50339#(and (<= main_a_x 37) (not (= main_x main_y))), 50340#(and (not (= main_x main_y)) (<= main_a_x 38)), 50341#(and (<= main_a_x 39) (not (= main_x main_y))), 50342#(and (<= main_a_x 40) (not (= main_x main_y))), 50343#(and (not (= main_x main_y)) (<= main_a_x 41)), 50344#(and (not (= main_x main_y)) (<= main_a_x 42)), 50345#(and (<= main_a_x 43) (not (= main_x main_y))), 50346#(and (<= main_a_x 44) (not (= main_x main_y))), 50347#(and (<= main_a_x 45) (not (= main_x main_y))), 50348#(and (<= main_a_x 46) (not (= main_x main_y))), 50349#(and (<= main_a_x 47) (not (= main_x main_y))), 50350#(and (<= main_a_x 48) (not (= main_x main_y))), 50351#(and (not (= main_x main_y)) (<= main_a_x 49)), 50352#(and (not (= main_x main_y)) (<= main_a_x 50)), 50353#(and (<= main_a_x 51) (not (= main_x main_y))), 50354#(and (not (= main_x main_y)) (<= main_a_x 52)), 50355#(and (<= main_a_x 53) (not (= main_x main_y))), 50356#(and (<= main_a_x 54) (not (= main_x main_y))), 50357#(and (not (= main_x main_y)) (<= main_a_x 55)), 50358#(and (not (= main_x main_y)) (<= main_a_x 56)), 50359#(and (not (= main_x main_y)) (<= main_a_x 57)), 50360#(and (not (= main_x main_y)) (<= main_a_x 58)), 50361#(and (not (= main_x main_y)) (<= main_a_x 59)), 50362#(and (<= main_a_x 60) (not (= main_x main_y))), 50363#(and (not (= main_x main_y)) (<= main_a_x 61)), 50364#(and (not (= main_x main_y)) (<= main_a_x 62)), 50365#(and (<= main_a_x 63) (not (= main_x main_y))), 50366#(and (<= main_a_x 64) (not (= main_x main_y))), 50367#(and (<= main_a_x 65) (not (= main_x main_y))), 50368#(and (<= main_a_x 66) (not (= main_x main_y))), 50369#(and (<= main_a_x 67) (not (= main_x main_y))), 50370#(and (not (= main_x main_y)) (<= main_a_x 68)), 50371#(and (<= main_a_x 69) (not (= main_x main_y))), 50372#(and (<= main_a_x 70) (not (= main_x main_y))), 50373#(and (<= main_a_x 71) (not (= main_x main_y))), 50374#(and (not (= main_x main_y)) (<= main_a_x 72)), 50375#(and (not (= main_x main_y)) (<= main_a_x 73)), 50376#(and (<= main_a_x 74) (not (= main_x main_y))), 50377#(and (<= main_a_x 75) (not (= main_x main_y))), 50378#(and (not (= main_x main_y)) (<= main_a_x 76)), 50379#(and (not (= main_x main_y)) (<= main_a_x 77)), 50380#(and (<= main_a_x 78) (not (= main_x main_y))), 50381#(and (<= main_a_x 79) (not (= main_x main_y))), 50382#(and (not (= main_x main_y)) (<= main_a_x 80)), 50383#(and (not (= main_x main_y)) (<= main_a_x 81)), 50384#(and (not (= main_x main_y)) (<= main_a_x 82)), 50385#(and (not (= main_x main_y)) (<= main_a_x 83)), 50386#(and (<= main_a_x 84) (not (= main_x main_y))), 50387#(and (not (= main_x main_y)) (<= main_a_x 85)), 50388#(and (not (= main_x main_y)) (<= main_a_x 86)), 50389#(and (<= main_a_x 87) (not (= main_x main_y))), 50390#(and (not (= main_x main_y)) (<= main_a_x 88)), 50391#(and (<= main_a_x 89) (not (= main_x main_y))), 50392#(and (not (= main_x main_y)) (<= main_a_x 90)), 50393#(and (<= main_a_x 91) (not (= main_x main_y))), 50394#(and (not (= main_x main_y)) (<= main_a_x 92)), 50395#(and (not (= main_x main_y)) (<= main_a_x 93)), 50396#(and (<= main_a_x 94) (not (= main_x main_y))), 50397#(and (<= main_a_x 95) (not (= main_x main_y))), 50398#(and (not (= main_x main_y)) (<= main_a_x 96)), 50399#(and (<= main_a_x 97) (not (= main_x main_y))), 50400#(and (not (= main_x main_y)) (<= main_a_x 98)), 50401#(and (<= main_a_x 99) (not (= main_x main_y))), 50402#(and (<= main_a_x 100) (not (= main_x main_y))), 50403#(and (not (= main_x main_y)) (<= main_a_x 101)), 50404#(and (not (= main_x main_y)) (<= main_a_x 102)), 50405#(and (not (= main_x main_y)) (<= main_a_x 103)), 50406#(and (<= main_a_x 104) (not (= main_x main_y))), 50407#(and (<= main_a_x 105) (not (= main_x main_y))), 50408#(and (not (= main_x main_y)) (<= main_a_x 106)), 50409#(and (not (= main_x main_y)) (<= main_a_x 107)), 50410#(and (not (= main_x main_y)) (<= main_a_x 108)), 50411#(and (not (= main_x main_y)) (<= main_a_x 109)), 50412#(and (<= main_a_x 110) (not (= main_x main_y))), 50413#(and (not (= main_x main_y)) (<= main_a_x 111)), 50414#(and (<= main_a_x 112) (not (= main_x main_y))), 50415#(and (<= main_a_x 113) (not (= main_x main_y))), 50416#(and (not (= main_x main_y)) (<= main_a_x 114)), 50417#(and (not (= main_x main_y)) (<= main_a_x 115)), 50418#(and (not (= main_x main_y)) (<= main_a_x 116)), 50419#(and (<= main_a_x 117) (not (= main_x main_y))), 50420#(and (not (= main_x main_y)) (<= main_a_x 118)), 50421#(and (not (= main_x main_y)) (<= main_a_x 119)), 50422#(and (not (= main_x main_y)) (<= main_a_x 120)), 50423#(and (not (= main_x main_y)) (<= main_a_x 121)), 50424#(and (not (= main_x main_y)) (<= main_a_x 122)), 50425#(and (<= main_a_x 123) (not (= main_x main_y))), 50426#(and (not (= main_x main_y)) (<= main_a_x 124)), 50427#(and (not (= main_x main_y)) (<= main_a_x 125)), 50428#(and (not (= main_x main_y)) (<= main_a_x 126)), 50429#(and (not (= main_x main_y)) (<= main_a_x 127)), 50430#(and (<= main_a_x 128) (not (= main_x main_y))), 50431#(and (<= main_a_x 129) (not (= main_x main_y)))] [2018-07-23 13:53:52,112 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 13:53:52,112 INFO L450 AbstractCegarLoop]: Interpolant automaton has 140 states [2018-07-23 13:53:52,113 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 140 interpolants. [2018-07-23 13:53:52,114 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9730, Invalid=9730, Unknown=0, NotChecked=0, Total=19460 [2018-07-23 13:53:52,114 INFO L87 Difference]: Start difference. First operand 141 states and 141 transitions. Second operand 140 states. [2018-07-23 13:53:52,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:52,338 INFO L93 Difference]: Finished difference Result 144 states and 144 transitions. [2018-07-23 13:53:52,338 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 140 states. [2018-07-23 13:53:52,338 INFO L78 Accepts]: Start accepts. Automaton has 140 states. Word has length 140 [2018-07-23 13:53:52,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:52,338 INFO L225 Difference]: With dead ends: 144 [2018-07-23 13:53:52,339 INFO L226 Difference]: Without dead ends: 142 [2018-07-23 13:53:52,339 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=9730, Invalid=9730, Unknown=0, NotChecked=0, Total=19460 [2018-07-23 13:53:52,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2018-07-23 13:53:52,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2018-07-23 13:53:52,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2018-07-23 13:53:52,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 142 transitions. [2018-07-23 13:53:52,343 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 142 transitions. Word has length 140 [2018-07-23 13:53:52,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:52,343 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 142 transitions. [2018-07-23 13:53:52,343 INFO L472 AbstractCegarLoop]: Interpolant automaton has 140 states. [2018-07-23 13:53:52,343 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 142 transitions. [2018-07-23 13:53:52,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-07-23 13:53:52,344 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:52,344 INFO L357 BasicCegarLoop]: trace histogram [138, 1, 1, 1] [2018-07-23 13:53:52,344 INFO L414 AbstractCegarLoop]: === Iteration 139 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:52,344 INFO L82 PathProgramCache]: Analyzing trace with hash 179464844, now seen corresponding path program 138 times [2018-07-23 13:53:52,344 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:52,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:54,283 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 13:53:54,283 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:54,283 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [140] total 140 [2018-07-23 13:53:54,283 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:54,283 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 13:53:54,284 INFO L185 omatonBuilderFactory]: Interpolants [51012#true, 51013#false, 51014#(and (not (= main_x main_y)) (<= main_a_x 0)), 51015#(and (not (= main_x main_y)) (<= main_a_x 1)), 51016#(and (not (= main_x main_y)) (<= main_a_x 2)), 51017#(and (not (= main_x main_y)) (<= main_a_x 3)), 51018#(and (<= main_a_x 4) (not (= main_x main_y))), 51019#(and (<= main_a_x 5) (not (= main_x main_y))), 51020#(and (not (= main_x main_y)) (<= main_a_x 6)), 51021#(and (<= main_a_x 7) (not (= main_x main_y))), 51022#(and (not (= main_x main_y)) (<= main_a_x 8)), 51023#(and (not (= main_x main_y)) (<= main_a_x 9)), 51024#(and (<= main_a_x 10) (not (= main_x main_y))), 51025#(and (not (= main_x main_y)) (<= main_a_x 11)), 51026#(and (not (= main_x main_y)) (<= main_a_x 12)), 51027#(and (<= main_a_x 13) (not (= main_x main_y))), 51028#(and (not (= main_x main_y)) (<= main_a_x 14)), 51029#(and (<= main_a_x 15) (not (= main_x main_y))), 51030#(and (not (= main_x main_y)) (<= main_a_x 16)), 51031#(and (not (= main_x main_y)) (<= main_a_x 17)), 51032#(and (<= main_a_x 18) (not (= main_x main_y))), 51033#(and (<= main_a_x 19) (not (= main_x main_y))), 51034#(and (not (= main_x main_y)) (<= main_a_x 20)), 51035#(and (not (= main_x main_y)) (<= main_a_x 21)), 51036#(and (not (= main_x main_y)) (<= main_a_x 22)), 51037#(and (<= main_a_x 23) (not (= main_x main_y))), 51038#(and (not (= main_x main_y)) (<= main_a_x 24)), 51039#(and (<= main_a_x 25) (not (= main_x main_y))), 51040#(and (not (= main_x main_y)) (<= main_a_x 26)), 51041#(and (not (= main_x main_y)) (<= main_a_x 27)), 51042#(and (not (= main_x main_y)) (<= main_a_x 28)), 51043#(and (not (= main_x main_y)) (<= main_a_x 29)), 51044#(and (<= main_a_x 30) (not (= main_x main_y))), 51045#(and (<= main_a_x 31) (not (= main_x main_y))), 51046#(and (not (= main_x main_y)) (<= main_a_x 32)), 51047#(and (not (= main_x main_y)) (<= main_a_x 33)), 51048#(and (not (= main_x main_y)) (<= main_a_x 34)), 51049#(and (<= main_a_x 35) (not (= main_x main_y))), 51050#(and (not (= main_x main_y)) (<= main_a_x 36)), 51051#(and (<= main_a_x 37) (not (= main_x main_y))), 51052#(and (not (= main_x main_y)) (<= main_a_x 38)), 51053#(and (<= main_a_x 39) (not (= main_x main_y))), 51054#(and (<= main_a_x 40) (not (= main_x main_y))), 51055#(and (not (= main_x main_y)) (<= main_a_x 41)), 51056#(and (not (= main_x main_y)) (<= main_a_x 42)), 51057#(and (<= main_a_x 43) (not (= main_x main_y))), 51058#(and (<= main_a_x 44) (not (= main_x main_y))), 51059#(and (<= main_a_x 45) (not (= main_x main_y))), 51060#(and (<= main_a_x 46) (not (= main_x main_y))), 51061#(and (<= main_a_x 47) (not (= main_x main_y))), 51062#(and (<= main_a_x 48) (not (= main_x main_y))), 51063#(and (not (= main_x main_y)) (<= main_a_x 49)), 51064#(and (not (= main_x main_y)) (<= main_a_x 50)), 51065#(and (<= main_a_x 51) (not (= main_x main_y))), 51066#(and (not (= main_x main_y)) (<= main_a_x 52)), 51067#(and (<= main_a_x 53) (not (= main_x main_y))), 51068#(and (<= main_a_x 54) (not (= main_x main_y))), 51069#(and (not (= main_x main_y)) (<= main_a_x 55)), 51070#(and (not (= main_x main_y)) (<= main_a_x 56)), 51071#(and (not (= main_x main_y)) (<= main_a_x 57)), 51072#(and (not (= main_x main_y)) (<= main_a_x 58)), 51073#(and (not (= main_x main_y)) (<= main_a_x 59)), 51074#(and (<= main_a_x 60) (not (= main_x main_y))), 51075#(and (not (= main_x main_y)) (<= main_a_x 61)), 51076#(and (not (= main_x main_y)) (<= main_a_x 62)), 51077#(and (<= main_a_x 63) (not (= main_x main_y))), 51078#(and (<= main_a_x 64) (not (= main_x main_y))), 51079#(and (<= main_a_x 65) (not (= main_x main_y))), 51080#(and (<= main_a_x 66) (not (= main_x main_y))), 51081#(and (<= main_a_x 67) (not (= main_x main_y))), 51082#(and (not (= main_x main_y)) (<= main_a_x 68)), 51083#(and (<= main_a_x 69) (not (= main_x main_y))), 51084#(and (<= main_a_x 70) (not (= main_x main_y))), 51085#(and (<= main_a_x 71) (not (= main_x main_y))), 51086#(and (not (= main_x main_y)) (<= main_a_x 72)), 51087#(and (not (= main_x main_y)) (<= main_a_x 73)), 51088#(and (<= main_a_x 74) (not (= main_x main_y))), 51089#(and (<= main_a_x 75) (not (= main_x main_y))), 51090#(and (not (= main_x main_y)) (<= main_a_x 76)), 51091#(and (not (= main_x main_y)) (<= main_a_x 77)), 51092#(and (<= main_a_x 78) (not (= main_x main_y))), 51093#(and (<= main_a_x 79) (not (= main_x main_y))), 51094#(and (not (= main_x main_y)) (<= main_a_x 80)), 51095#(and (not (= main_x main_y)) (<= main_a_x 81)), 51096#(and (not (= main_x main_y)) (<= main_a_x 82)), 51097#(and (not (= main_x main_y)) (<= main_a_x 83)), 51098#(and (<= main_a_x 84) (not (= main_x main_y))), 51099#(and (not (= main_x main_y)) (<= main_a_x 85)), 51100#(and (not (= main_x main_y)) (<= main_a_x 86)), 51101#(and (<= main_a_x 87) (not (= main_x main_y))), 51102#(and (not (= main_x main_y)) (<= main_a_x 88)), 51103#(and (<= main_a_x 89) (not (= main_x main_y))), 51104#(and (not (= main_x main_y)) (<= main_a_x 90)), 51105#(and (<= main_a_x 91) (not (= main_x main_y))), 51106#(and (not (= main_x main_y)) (<= main_a_x 92)), 51107#(and (not (= main_x main_y)) (<= main_a_x 93)), 51108#(and (<= main_a_x 94) (not (= main_x main_y))), 51109#(and (<= main_a_x 95) (not (= main_x main_y))), 51110#(and (not (= main_x main_y)) (<= main_a_x 96)), 51111#(and (<= main_a_x 97) (not (= main_x main_y))), 51112#(and (not (= main_x main_y)) (<= main_a_x 98)), 51113#(and (<= main_a_x 99) (not (= main_x main_y))), 51114#(and (<= main_a_x 100) (not (= main_x main_y))), 51115#(and (not (= main_x main_y)) (<= main_a_x 101)), 51116#(and (not (= main_x main_y)) (<= main_a_x 102)), 51117#(and (not (= main_x main_y)) (<= main_a_x 103)), 51118#(and (<= main_a_x 104) (not (= main_x main_y))), 51119#(and (<= main_a_x 105) (not (= main_x main_y))), 51120#(and (not (= main_x main_y)) (<= main_a_x 106)), 51121#(and (not (= main_x main_y)) (<= main_a_x 107)), 51122#(and (not (= main_x main_y)) (<= main_a_x 108)), 51123#(and (not (= main_x main_y)) (<= main_a_x 109)), 51124#(and (<= main_a_x 110) (not (= main_x main_y))), 51125#(and (not (= main_x main_y)) (<= main_a_x 111)), 51126#(and (<= main_a_x 112) (not (= main_x main_y))), 51127#(and (<= main_a_x 113) (not (= main_x main_y))), 51128#(and (not (= main_x main_y)) (<= main_a_x 114)), 51129#(and (not (= main_x main_y)) (<= main_a_x 115)), 51130#(and (not (= main_x main_y)) (<= main_a_x 116)), 51131#(and (<= main_a_x 117) (not (= main_x main_y))), 51132#(and (not (= main_x main_y)) (<= main_a_x 118)), 51133#(and (not (= main_x main_y)) (<= main_a_x 119)), 51134#(and (not (= main_x main_y)) (<= main_a_x 120)), 51135#(and (not (= main_x main_y)) (<= main_a_x 121)), 51136#(and (not (= main_x main_y)) (<= main_a_x 122)), 51137#(and (<= main_a_x 123) (not (= main_x main_y))), 51138#(and (not (= main_x main_y)) (<= main_a_x 124)), 51139#(and (not (= main_x main_y)) (<= main_a_x 125)), 51140#(and (not (= main_x main_y)) (<= main_a_x 126)), 51141#(and (not (= main_x main_y)) (<= main_a_x 127)), 51142#(and (<= main_a_x 128) (not (= main_x main_y))), 51143#(and (<= main_a_x 129) (not (= main_x main_y))), 51144#(and (not (= main_x main_y)) (<= main_a_x 130)), 51145#(and (not (= main_x main_y)) (<= main_a_x 131)), 51146#(and (not (= main_x main_y)) (<= main_a_x 132)), 51147#(and (not (= main_x main_y)) (<= main_a_x 133)), 51148#(and (not (= main_x main_y)) (<= main_a_x 134)), 51149#(and (<= main_a_x 135) (not (= main_x main_y))), 51150#(and (<= main_a_x 136) (not (= main_x main_y))), 51151#(and (not (= main_x main_y)) (<= main_a_x 137)), 51152#(<= main_a_x 138)] [2018-07-23 13:53:54,284 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 13:53:54,285 INFO L450 AbstractCegarLoop]: Interpolant automaton has 141 states [2018-07-23 13:53:54,286 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 141 interpolants. [2018-07-23 13:53:54,286 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9870, Invalid=9870, Unknown=0, NotChecked=0, Total=19740 [2018-07-23 13:53:54,287 INFO L87 Difference]: Start difference. First operand 142 states and 142 transitions. Second operand 141 states. [2018-07-23 13:53:54,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:54,534 INFO L93 Difference]: Finished difference Result 145 states and 145 transitions. [2018-07-23 13:53:54,535 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 141 states. [2018-07-23 13:53:54,535 INFO L78 Accepts]: Start accepts. Automaton has 141 states. Word has length 141 [2018-07-23 13:53:54,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:54,535 INFO L225 Difference]: With dead ends: 145 [2018-07-23 13:53:54,535 INFO L226 Difference]: Without dead ends: 143 [2018-07-23 13:53:54,536 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=9870, Invalid=9870, Unknown=0, NotChecked=0, Total=19740 [2018-07-23 13:53:54,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2018-07-23 13:53:54,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2018-07-23 13:53:54,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2018-07-23 13:53:54,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 143 transitions. [2018-07-23 13:53:54,542 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 143 transitions. Word has length 141 [2018-07-23 13:53:54,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:54,543 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 143 transitions. [2018-07-23 13:53:54,543 INFO L472 AbstractCegarLoop]: Interpolant automaton has 141 states. [2018-07-23 13:53:54,543 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 143 transitions. [2018-07-23 13:53:54,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-07-23 13:53:54,543 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:54,544 INFO L357 BasicCegarLoop]: trace histogram [139, 1, 1, 1] [2018-07-23 13:53:54,544 INFO L414 AbstractCegarLoop]: === Iteration 140 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:54,544 INFO L82 PathProgramCache]: Analyzing trace with hash 1268458247, now seen corresponding path program 139 times [2018-07-23 13:53:54,544 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:55,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:56,628 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 13:53:56,628 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:56,628 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [141] total 141 [2018-07-23 13:53:56,629 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:56,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:56,629 INFO L185 omatonBuilderFactory]: Interpolants [51729#true, 51730#false, 51731#(and (not (= main_x main_y)) (<= main_a_x 0)), 51732#(and (not (= main_x main_y)) (<= main_a_x 1)), 51733#(and (not (= main_x main_y)) (<= main_a_x 2)), 51734#(and (not (= main_x main_y)) (<= main_a_x 3)), 51735#(and (<= main_a_x 4) (not (= main_x main_y))), 51736#(and (<= main_a_x 5) (not (= main_x main_y))), 51737#(and (not (= main_x main_y)) (<= main_a_x 6)), 51738#(and (<= main_a_x 7) (not (= main_x main_y))), 51739#(and (not (= main_x main_y)) (<= main_a_x 8)), 51740#(and (not (= main_x main_y)) (<= main_a_x 9)), 51741#(and (<= main_a_x 10) (not (= main_x main_y))), 51742#(and (not (= main_x main_y)) (<= main_a_x 11)), 51743#(and (not (= main_x main_y)) (<= main_a_x 12)), 51744#(and (<= main_a_x 13) (not (= main_x main_y))), 51745#(and (not (= main_x main_y)) (<= main_a_x 14)), 51746#(and (<= main_a_x 15) (not (= main_x main_y))), 51747#(and (not (= main_x main_y)) (<= main_a_x 16)), 51748#(and (not (= main_x main_y)) (<= main_a_x 17)), 51749#(and (<= main_a_x 18) (not (= main_x main_y))), 51750#(and (<= main_a_x 19) (not (= main_x main_y))), 51751#(and (not (= main_x main_y)) (<= main_a_x 20)), 51752#(and (not (= main_x main_y)) (<= main_a_x 21)), 51753#(and (not (= main_x main_y)) (<= main_a_x 22)), 51754#(and (<= main_a_x 23) (not (= main_x main_y))), 51755#(and (not (= main_x main_y)) (<= main_a_x 24)), 51756#(and (<= main_a_x 25) (not (= main_x main_y))), 51757#(and (not (= main_x main_y)) (<= main_a_x 26)), 51758#(and (not (= main_x main_y)) (<= main_a_x 27)), 51759#(and (not (= main_x main_y)) (<= main_a_x 28)), 51760#(and (not (= main_x main_y)) (<= main_a_x 29)), 51761#(and (<= main_a_x 30) (not (= main_x main_y))), 51762#(and (<= main_a_x 31) (not (= main_x main_y))), 51763#(and (not (= main_x main_y)) (<= main_a_x 32)), 51764#(and (not (= main_x main_y)) (<= main_a_x 33)), 51765#(and (not (= main_x main_y)) (<= main_a_x 34)), 51766#(and (<= main_a_x 35) (not (= main_x main_y))), 51767#(and (not (= main_x main_y)) (<= main_a_x 36)), 51768#(and (<= main_a_x 37) (not (= main_x main_y))), 51769#(and (not (= main_x main_y)) (<= main_a_x 38)), 51770#(and (<= main_a_x 39) (not (= main_x main_y))), 51771#(and (<= main_a_x 40) (not (= main_x main_y))), 51772#(and (not (= main_x main_y)) (<= main_a_x 41)), 51773#(and (not (= main_x main_y)) (<= main_a_x 42)), 51774#(and (<= main_a_x 43) (not (= main_x main_y))), 51775#(and (<= main_a_x 44) (not (= main_x main_y))), 51776#(and (<= main_a_x 45) (not (= main_x main_y))), 51777#(and (<= main_a_x 46) (not (= main_x main_y))), 51778#(and (<= main_a_x 47) (not (= main_x main_y))), 51779#(and (<= main_a_x 48) (not (= main_x main_y))), 51780#(and (not (= main_x main_y)) (<= main_a_x 49)), 51781#(and (not (= main_x main_y)) (<= main_a_x 50)), 51782#(and (<= main_a_x 51) (not (= main_x main_y))), 51783#(and (not (= main_x main_y)) (<= main_a_x 52)), 51784#(and (<= main_a_x 53) (not (= main_x main_y))), 51785#(and (<= main_a_x 54) (not (= main_x main_y))), 51786#(and (not (= main_x main_y)) (<= main_a_x 55)), 51787#(and (not (= main_x main_y)) (<= main_a_x 56)), 51788#(and (not (= main_x main_y)) (<= main_a_x 57)), 51789#(and (not (= main_x main_y)) (<= main_a_x 58)), 51790#(and (not (= main_x main_y)) (<= main_a_x 59)), 51791#(and (<= main_a_x 60) (not (= main_x main_y))), 51792#(and (not (= main_x main_y)) (<= main_a_x 61)), 51793#(and (not (= main_x main_y)) (<= main_a_x 62)), 51794#(and (<= main_a_x 63) (not (= main_x main_y))), 51795#(and (<= main_a_x 64) (not (= main_x main_y))), 51796#(and (<= main_a_x 65) (not (= main_x main_y))), 51797#(and (<= main_a_x 66) (not (= main_x main_y))), 51798#(and (<= main_a_x 67) (not (= main_x main_y))), 51799#(and (not (= main_x main_y)) (<= main_a_x 68)), 51800#(and (<= main_a_x 69) (not (= main_x main_y))), 51801#(and (<= main_a_x 70) (not (= main_x main_y))), 51802#(and (<= main_a_x 71) (not (= main_x main_y))), 51803#(and (not (= main_x main_y)) (<= main_a_x 72)), 51804#(and (not (= main_x main_y)) (<= main_a_x 73)), 51805#(and (<= main_a_x 74) (not (= main_x main_y))), 51806#(and (<= main_a_x 75) (not (= main_x main_y))), 51807#(and (not (= main_x main_y)) (<= main_a_x 76)), 51808#(and (not (= main_x main_y)) (<= main_a_x 77)), 51809#(and (<= main_a_x 78) (not (= main_x main_y))), 51810#(and (<= main_a_x 79) (not (= main_x main_y))), 51811#(and (not (= main_x main_y)) (<= main_a_x 80)), 51812#(and (not (= main_x main_y)) (<= main_a_x 81)), 51813#(and (not (= main_x main_y)) (<= main_a_x 82)), 51814#(and (not (= main_x main_y)) (<= main_a_x 83)), 51815#(and (<= main_a_x 84) (not (= main_x main_y))), 51816#(and (not (= main_x main_y)) (<= main_a_x 85)), 51817#(and (not (= main_x main_y)) (<= main_a_x 86)), 51818#(and (<= main_a_x 87) (not (= main_x main_y))), 51819#(and (not (= main_x main_y)) (<= main_a_x 88)), 51820#(and (<= main_a_x 89) (not (= main_x main_y))), 51821#(and (not (= main_x main_y)) (<= main_a_x 90)), 51822#(and (<= main_a_x 91) (not (= main_x main_y))), 51823#(and (not (= main_x main_y)) (<= main_a_x 92)), 51824#(and (not (= main_x main_y)) (<= main_a_x 93)), 51825#(and (<= main_a_x 94) (not (= main_x main_y))), 51826#(and (<= main_a_x 95) (not (= main_x main_y))), 51827#(and (not (= main_x main_y)) (<= main_a_x 96)), 51828#(and (<= main_a_x 97) (not (= main_x main_y))), 51829#(and (not (= main_x main_y)) (<= main_a_x 98)), 51830#(and (<= main_a_x 99) (not (= main_x main_y))), 51831#(and (<= main_a_x 100) (not (= main_x main_y))), 51832#(and (not (= main_x main_y)) (<= main_a_x 101)), 51833#(and (not (= main_x main_y)) (<= main_a_x 102)), 51834#(and (not (= main_x main_y)) (<= main_a_x 103)), 51835#(and (<= main_a_x 104) (not (= main_x main_y))), 51836#(and (<= main_a_x 105) (not (= main_x main_y))), 51837#(and (not (= main_x main_y)) (<= main_a_x 106)), 51838#(and (not (= main_x main_y)) (<= main_a_x 107)), 51839#(and (not (= main_x main_y)) (<= main_a_x 108)), 51840#(and (not (= main_x main_y)) (<= main_a_x 109)), 51841#(and (<= main_a_x 110) (not (= main_x main_y))), 51842#(and (not (= main_x main_y)) (<= main_a_x 111)), 51843#(and (<= main_a_x 112) (not (= main_x main_y))), 51844#(and (<= main_a_x 113) (not (= main_x main_y))), 51845#(and (not (= main_x main_y)) (<= main_a_x 114)), 51846#(and (not (= main_x main_y)) (<= main_a_x 115)), 51847#(and (not (= main_x main_y)) (<= main_a_x 116)), 51848#(and (<= main_a_x 117) (not (= main_x main_y))), 51849#(and (not (= main_x main_y)) (<= main_a_x 118)), 51850#(and (not (= main_x main_y)) (<= main_a_x 119)), 51851#(and (not (= main_x main_y)) (<= main_a_x 120)), 51852#(and (not (= main_x main_y)) (<= main_a_x 121)), 51853#(and (not (= main_x main_y)) (<= main_a_x 122)), 51854#(and (<= main_a_x 123) (not (= main_x main_y))), 51855#(and (not (= main_x main_y)) (<= main_a_x 124)), 51856#(and (not (= main_x main_y)) (<= main_a_x 125)), 51857#(and (not (= main_x main_y)) (<= main_a_x 126)), 51858#(and (not (= main_x main_y)) (<= main_a_x 127)), 51859#(and (<= main_a_x 128) (not (= main_x main_y))), 51860#(and (<= main_a_x 129) (not (= main_x main_y))), 51861#(and (not (= main_x main_y)) (<= main_a_x 130)), 51862#(and (not (= main_x main_y)) (<= main_a_x 131)), 51863#(and (not (= main_x main_y)) (<= main_a_x 132)), 51864#(and (not (= main_x main_y)) (<= main_a_x 133)), 51865#(and (not (= main_x main_y)) (<= main_a_x 134)), 51866#(and (<= main_a_x 135) (not (= main_x main_y))), 51867#(and (<= main_a_x 136) (not (= main_x main_y))), 51868#(and (not (= main_x main_y)) (<= main_a_x 137)), 51869#(and (not (= main_x main_y)) (<= main_a_x 138)), 51870#(<= main_a_x 139)] [2018-07-23 13:53:56,630 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 13:53:56,630 INFO L450 AbstractCegarLoop]: Interpolant automaton has 142 states [2018-07-23 13:53:56,631 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 142 interpolants. [2018-07-23 13:53:56,631 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10011, Invalid=10011, Unknown=0, NotChecked=0, Total=20022 [2018-07-23 13:53:56,631 INFO L87 Difference]: Start difference. First operand 143 states and 143 transitions. Second operand 142 states. [2018-07-23 13:53:56,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:56,923 INFO L93 Difference]: Finished difference Result 146 states and 146 transitions. [2018-07-23 13:53:56,923 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 142 states. [2018-07-23 13:53:56,923 INFO L78 Accepts]: Start accepts. Automaton has 142 states. Word has length 142 [2018-07-23 13:53:56,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:56,924 INFO L225 Difference]: With dead ends: 146 [2018-07-23 13:53:56,924 INFO L226 Difference]: Without dead ends: 144 [2018-07-23 13:53:56,924 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=10011, Invalid=10011, Unknown=0, NotChecked=0, Total=20022 [2018-07-23 13:53:56,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2018-07-23 13:53:56,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2018-07-23 13:53:56,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2018-07-23 13:53:56,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 144 transitions. [2018-07-23 13:53:56,931 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 144 transitions. Word has length 142 [2018-07-23 13:53:56,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:56,931 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 144 transitions. [2018-07-23 13:53:56,931 INFO L472 AbstractCegarLoop]: Interpolant automaton has 142 states. [2018-07-23 13:53:56,931 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 144 transitions. [2018-07-23 13:53:56,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-07-23 13:53:56,932 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:56,932 INFO L357 BasicCegarLoop]: trace histogram [140, 1, 1, 1] [2018-07-23 13:53:56,932 INFO L414 AbstractCegarLoop]: === Iteration 141 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:56,932 INFO L82 PathProgramCache]: Analyzing trace with hash 667515372, now seen corresponding path program 140 times [2018-07-23 13:53:56,932 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:57,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:58,943 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 13:53:58,943 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:58,943 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [142] total 142 [2018-07-23 13:53:58,944 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:58,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:58,944 INFO L185 omatonBuilderFactory]: Interpolants [52480#(and (not (= main_x main_y)) (<= main_a_x 27)), 52481#(and (not (= main_x main_y)) (<= main_a_x 28)), 52482#(and (not (= main_x main_y)) (<= main_a_x 29)), 52483#(and (<= main_a_x 30) (not (= main_x main_y))), 52484#(and (<= main_a_x 31) (not (= main_x main_y))), 52485#(and (not (= main_x main_y)) (<= main_a_x 32)), 52486#(and (not (= main_x main_y)) (<= main_a_x 33)), 52487#(and (not (= main_x main_y)) (<= main_a_x 34)), 52488#(and (<= main_a_x 35) (not (= main_x main_y))), 52489#(and (not (= main_x main_y)) (<= main_a_x 36)), 52490#(and (<= main_a_x 37) (not (= main_x main_y))), 52491#(and (not (= main_x main_y)) (<= main_a_x 38)), 52492#(and (<= main_a_x 39) (not (= main_x main_y))), 52493#(and (<= main_a_x 40) (not (= main_x main_y))), 52494#(and (not (= main_x main_y)) (<= main_a_x 41)), 52495#(and (not (= main_x main_y)) (<= main_a_x 42)), 52496#(and (<= main_a_x 43) (not (= main_x main_y))), 52497#(and (<= main_a_x 44) (not (= main_x main_y))), 52498#(and (<= main_a_x 45) (not (= main_x main_y))), 52499#(and (<= main_a_x 46) (not (= main_x main_y))), 52500#(and (<= main_a_x 47) (not (= main_x main_y))), 52501#(and (<= main_a_x 48) (not (= main_x main_y))), 52502#(and (not (= main_x main_y)) (<= main_a_x 49)), 52503#(and (not (= main_x main_y)) (<= main_a_x 50)), 52504#(and (<= main_a_x 51) (not (= main_x main_y))), 52505#(and (not (= main_x main_y)) (<= main_a_x 52)), 52506#(and (<= main_a_x 53) (not (= main_x main_y))), 52507#(and (<= main_a_x 54) (not (= main_x main_y))), 52508#(and (not (= main_x main_y)) (<= main_a_x 55)), 52509#(and (not (= main_x main_y)) (<= main_a_x 56)), 52510#(and (not (= main_x main_y)) (<= main_a_x 57)), 52511#(and (not (= main_x main_y)) (<= main_a_x 58)), 52512#(and (not (= main_x main_y)) (<= main_a_x 59)), 52513#(and (<= main_a_x 60) (not (= main_x main_y))), 52514#(and (not (= main_x main_y)) (<= main_a_x 61)), 52515#(and (not (= main_x main_y)) (<= main_a_x 62)), 52516#(and (<= main_a_x 63) (not (= main_x main_y))), 52517#(and (<= main_a_x 64) (not (= main_x main_y))), 52518#(and (<= main_a_x 65) (not (= main_x main_y))), 52519#(and (<= main_a_x 66) (not (= main_x main_y))), 52520#(and (<= main_a_x 67) (not (= main_x main_y))), 52521#(and (not (= main_x main_y)) (<= main_a_x 68)), 52522#(and (<= main_a_x 69) (not (= main_x main_y))), 52523#(and (<= main_a_x 70) (not (= main_x main_y))), 52524#(and (<= main_a_x 71) (not (= main_x main_y))), 52525#(and (not (= main_x main_y)) (<= main_a_x 72)), 52526#(and (not (= main_x main_y)) (<= main_a_x 73)), 52527#(and (<= main_a_x 74) (not (= main_x main_y))), 52528#(and (<= main_a_x 75) (not (= main_x main_y))), 52529#(and (not (= main_x main_y)) (<= main_a_x 76)), 52530#(and (not (= main_x main_y)) (<= main_a_x 77)), 52531#(and (<= main_a_x 78) (not (= main_x main_y))), 52532#(and (<= main_a_x 79) (not (= main_x main_y))), 52533#(and (not (= main_x main_y)) (<= main_a_x 80)), 52534#(and (not (= main_x main_y)) (<= main_a_x 81)), 52535#(and (not (= main_x main_y)) (<= main_a_x 82)), 52536#(and (not (= main_x main_y)) (<= main_a_x 83)), 52537#(and (<= main_a_x 84) (not (= main_x main_y))), 52538#(and (not (= main_x main_y)) (<= main_a_x 85)), 52539#(and (not (= main_x main_y)) (<= main_a_x 86)), 52540#(and (<= main_a_x 87) (not (= main_x main_y))), 52541#(and (not (= main_x main_y)) (<= main_a_x 88)), 52542#(and (<= main_a_x 89) (not (= main_x main_y))), 52543#(and (not (= main_x main_y)) (<= main_a_x 90)), 52544#(and (<= main_a_x 91) (not (= main_x main_y))), 52545#(and (not (= main_x main_y)) (<= main_a_x 92)), 52546#(and (not (= main_x main_y)) (<= main_a_x 93)), 52547#(and (<= main_a_x 94) (not (= main_x main_y))), 52548#(and (<= main_a_x 95) (not (= main_x main_y))), 52549#(and (not (= main_x main_y)) (<= main_a_x 96)), 52550#(and (<= main_a_x 97) (not (= main_x main_y))), 52551#(and (not (= main_x main_y)) (<= main_a_x 98)), 52552#(and (<= main_a_x 99) (not (= main_x main_y))), 52553#(and (<= main_a_x 100) (not (= main_x main_y))), 52554#(and (not (= main_x main_y)) (<= main_a_x 101)), 52555#(and (not (= main_x main_y)) (<= main_a_x 102)), 52556#(and (not (= main_x main_y)) (<= main_a_x 103)), 52557#(and (<= main_a_x 104) (not (= main_x main_y))), 52558#(and (<= main_a_x 105) (not (= main_x main_y))), 52559#(and (not (= main_x main_y)) (<= main_a_x 106)), 52560#(and (not (= main_x main_y)) (<= main_a_x 107)), 52561#(and (not (= main_x main_y)) (<= main_a_x 108)), 52562#(and (not (= main_x main_y)) (<= main_a_x 109)), 52563#(and (<= main_a_x 110) (not (= main_x main_y))), 52564#(and (not (= main_x main_y)) (<= main_a_x 111)), 52565#(and (<= main_a_x 112) (not (= main_x main_y))), 52566#(and (<= main_a_x 113) (not (= main_x main_y))), 52567#(and (not (= main_x main_y)) (<= main_a_x 114)), 52568#(and (not (= main_x main_y)) (<= main_a_x 115)), 52569#(and (not (= main_x main_y)) (<= main_a_x 116)), 52570#(and (<= main_a_x 117) (not (= main_x main_y))), 52571#(and (not (= main_x main_y)) (<= main_a_x 118)), 52572#(and (not (= main_x main_y)) (<= main_a_x 119)), 52573#(and (not (= main_x main_y)) (<= main_a_x 120)), 52574#(and (not (= main_x main_y)) (<= main_a_x 121)), 52575#(and (not (= main_x main_y)) (<= main_a_x 122)), 52576#(and (<= main_a_x 123) (not (= main_x main_y))), 52577#(and (not (= main_x main_y)) (<= main_a_x 124)), 52578#(and (not (= main_x main_y)) (<= main_a_x 125)), 52579#(and (not (= main_x main_y)) (<= main_a_x 126)), 52580#(and (not (= main_x main_y)) (<= main_a_x 127)), 52581#(and (<= main_a_x 128) (not (= main_x main_y))), 52582#(and (<= main_a_x 129) (not (= main_x main_y))), 52583#(and (not (= main_x main_y)) (<= main_a_x 130)), 52584#(and (not (= main_x main_y)) (<= main_a_x 131)), 52585#(and (not (= main_x main_y)) (<= main_a_x 132)), 52586#(and (not (= main_x main_y)) (<= main_a_x 133)), 52587#(and (not (= main_x main_y)) (<= main_a_x 134)), 52588#(and (<= main_a_x 135) (not (= main_x main_y))), 52589#(and (<= main_a_x 136) (not (= main_x main_y))), 52590#(and (not (= main_x main_y)) (<= main_a_x 137)), 52591#(and (not (= main_x main_y)) (<= main_a_x 138)), 52592#(and (not (= main_x main_y)) (<= main_a_x 139)), 52593#(<= main_a_x 140), 52451#true, 52452#false, 52453#(and (not (= main_x main_y)) (<= main_a_x 0)), 52454#(and (not (= main_x main_y)) (<= main_a_x 1)), 52455#(and (not (= main_x main_y)) (<= main_a_x 2)), 52456#(and (not (= main_x main_y)) (<= main_a_x 3)), 52457#(and (<= main_a_x 4) (not (= main_x main_y))), 52458#(and (<= main_a_x 5) (not (= main_x main_y))), 52459#(and (not (= main_x main_y)) (<= main_a_x 6)), 52460#(and (<= main_a_x 7) (not (= main_x main_y))), 52461#(and (not (= main_x main_y)) (<= main_a_x 8)), 52462#(and (not (= main_x main_y)) (<= main_a_x 9)), 52463#(and (<= main_a_x 10) (not (= main_x main_y))), 52464#(and (not (= main_x main_y)) (<= main_a_x 11)), 52465#(and (not (= main_x main_y)) (<= main_a_x 12)), 52466#(and (<= main_a_x 13) (not (= main_x main_y))), 52467#(and (not (= main_x main_y)) (<= main_a_x 14)), 52468#(and (<= main_a_x 15) (not (= main_x main_y))), 52469#(and (not (= main_x main_y)) (<= main_a_x 16)), 52470#(and (not (= main_x main_y)) (<= main_a_x 17)), 52471#(and (<= main_a_x 18) (not (= main_x main_y))), 52472#(and (<= main_a_x 19) (not (= main_x main_y))), 52473#(and (not (= main_x main_y)) (<= main_a_x 20)), 52474#(and (not (= main_x main_y)) (<= main_a_x 21)), 52475#(and (not (= main_x main_y)) (<= main_a_x 22)), 52476#(and (<= main_a_x 23) (not (= main_x main_y))), 52477#(and (not (= main_x main_y)) (<= main_a_x 24)), 52478#(and (<= main_a_x 25) (not (= main_x main_y))), 52479#(and (not (= main_x main_y)) (<= main_a_x 26))] [2018-07-23 13:53:58,945 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 13:53:58,945 INFO L450 AbstractCegarLoop]: Interpolant automaton has 143 states [2018-07-23 13:53:58,946 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 143 interpolants. [2018-07-23 13:53:58,947 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10153, Invalid=10153, Unknown=0, NotChecked=0, Total=20306 [2018-07-23 13:53:58,947 INFO L87 Difference]: Start difference. First operand 144 states and 144 transitions. Second operand 143 states. [2018-07-23 13:53:59,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:59,184 INFO L93 Difference]: Finished difference Result 147 states and 147 transitions. [2018-07-23 13:53:59,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2018-07-23 13:53:59,184 INFO L78 Accepts]: Start accepts. Automaton has 143 states. Word has length 143 [2018-07-23 13:53:59,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:59,184 INFO L225 Difference]: With dead ends: 147 [2018-07-23 13:53:59,185 INFO L226 Difference]: Without dead ends: 145 [2018-07-23 13:53:59,185 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=10153, Invalid=10153, Unknown=0, NotChecked=0, Total=20306 [2018-07-23 13:53:59,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2018-07-23 13:53:59,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2018-07-23 13:53:59,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2018-07-23 13:53:59,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 145 transitions. [2018-07-23 13:53:59,190 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 145 transitions. Word has length 143 [2018-07-23 13:53:59,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:59,190 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 145 transitions. [2018-07-23 13:53:59,190 INFO L472 AbstractCegarLoop]: Interpolant automaton has 143 states. [2018-07-23 13:53:59,190 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 145 transitions. [2018-07-23 13:53:59,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2018-07-23 13:53:59,191 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:59,191 INFO L357 BasicCegarLoop]: trace histogram [141, 1, 1, 1] [2018-07-23 13:53:59,191 INFO L414 AbstractCegarLoop]: === Iteration 142 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:59,191 INFO L82 PathProgramCache]: Analyzing trace with hash -781844569, now seen corresponding path program 141 times [2018-07-23 13:53:59,191 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:59,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:01,443 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 13:54:01,443 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:01,443 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [143] total 143 [2018-07-23 13:54:01,444 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:01,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:01,444 INFO L185 omatonBuilderFactory]: Interpolants [53248#(and (not (= main_x main_y)) (<= main_a_x 68)), 53249#(and (<= main_a_x 69) (not (= main_x main_y))), 53250#(and (<= main_a_x 70) (not (= main_x main_y))), 53251#(and (<= main_a_x 71) (not (= main_x main_y))), 53252#(and (not (= main_x main_y)) (<= main_a_x 72)), 53253#(and (not (= main_x main_y)) (<= main_a_x 73)), 53254#(and (<= main_a_x 74) (not (= main_x main_y))), 53255#(and (<= main_a_x 75) (not (= main_x main_y))), 53256#(and (not (= main_x main_y)) (<= main_a_x 76)), 53257#(and (not (= main_x main_y)) (<= main_a_x 77)), 53258#(and (<= main_a_x 78) (not (= main_x main_y))), 53259#(and (<= main_a_x 79) (not (= main_x main_y))), 53260#(and (not (= main_x main_y)) (<= main_a_x 80)), 53261#(and (not (= main_x main_y)) (<= main_a_x 81)), 53262#(and (not (= main_x main_y)) (<= main_a_x 82)), 53263#(and (not (= main_x main_y)) (<= main_a_x 83)), 53264#(and (<= main_a_x 84) (not (= main_x main_y))), 53265#(and (not (= main_x main_y)) (<= main_a_x 85)), 53266#(and (not (= main_x main_y)) (<= main_a_x 86)), 53267#(and (<= main_a_x 87) (not (= main_x main_y))), 53268#(and (not (= main_x main_y)) (<= main_a_x 88)), 53269#(and (<= main_a_x 89) (not (= main_x main_y))), 53270#(and (not (= main_x main_y)) (<= main_a_x 90)), 53271#(and (<= main_a_x 91) (not (= main_x main_y))), 53272#(and (not (= main_x main_y)) (<= main_a_x 92)), 53273#(and (not (= main_x main_y)) (<= main_a_x 93)), 53274#(and (<= main_a_x 94) (not (= main_x main_y))), 53275#(and (<= main_a_x 95) (not (= main_x main_y))), 53276#(and (not (= main_x main_y)) (<= main_a_x 96)), 53277#(and (<= main_a_x 97) (not (= main_x main_y))), 53278#(and (not (= main_x main_y)) (<= main_a_x 98)), 53279#(and (<= main_a_x 99) (not (= main_x main_y))), 53280#(and (<= main_a_x 100) (not (= main_x main_y))), 53281#(and (not (= main_x main_y)) (<= main_a_x 101)), 53282#(and (not (= main_x main_y)) (<= main_a_x 102)), 53283#(and (not (= main_x main_y)) (<= main_a_x 103)), 53284#(and (<= main_a_x 104) (not (= main_x main_y))), 53285#(and (<= main_a_x 105) (not (= main_x main_y))), 53286#(and (not (= main_x main_y)) (<= main_a_x 106)), 53287#(and (not (= main_x main_y)) (<= main_a_x 107)), 53288#(and (not (= main_x main_y)) (<= main_a_x 108)), 53289#(and (not (= main_x main_y)) (<= main_a_x 109)), 53290#(and (<= main_a_x 110) (not (= main_x main_y))), 53291#(and (not (= main_x main_y)) (<= main_a_x 111)), 53292#(and (<= main_a_x 112) (not (= main_x main_y))), 53293#(and (<= main_a_x 113) (not (= main_x main_y))), 53294#(and (not (= main_x main_y)) (<= main_a_x 114)), 53295#(and (not (= main_x main_y)) (<= main_a_x 115)), 53296#(and (not (= main_x main_y)) (<= main_a_x 116)), 53297#(and (<= main_a_x 117) (not (= main_x main_y))), 53298#(and (not (= main_x main_y)) (<= main_a_x 118)), 53299#(and (not (= main_x main_y)) (<= main_a_x 119)), 53300#(and (not (= main_x main_y)) (<= main_a_x 120)), 53301#(and (not (= main_x main_y)) (<= main_a_x 121)), 53302#(and (not (= main_x main_y)) (<= main_a_x 122)), 53303#(and (<= main_a_x 123) (not (= main_x main_y))), 53304#(and (not (= main_x main_y)) (<= main_a_x 124)), 53305#(and (not (= main_x main_y)) (<= main_a_x 125)), 53306#(and (not (= main_x main_y)) (<= main_a_x 126)), 53307#(and (not (= main_x main_y)) (<= main_a_x 127)), 53308#(and (<= main_a_x 128) (not (= main_x main_y))), 53309#(and (<= main_a_x 129) (not (= main_x main_y))), 53310#(and (not (= main_x main_y)) (<= main_a_x 130)), 53311#(and (not (= main_x main_y)) (<= main_a_x 131)), 53312#(and (not (= main_x main_y)) (<= main_a_x 132)), 53313#(and (not (= main_x main_y)) (<= main_a_x 133)), 53314#(and (not (= main_x main_y)) (<= main_a_x 134)), 53315#(and (<= main_a_x 135) (not (= main_x main_y))), 53316#(and (<= main_a_x 136) (not (= main_x main_y))), 53317#(and (not (= main_x main_y)) (<= main_a_x 137)), 53318#(and (not (= main_x main_y)) (<= main_a_x 138)), 53319#(and (not (= main_x main_y)) (<= main_a_x 139)), 53320#(and (<= main_a_x 140) (not (= main_x main_y))), 53321#(<= main_a_x 141), 53178#true, 53179#false, 53180#(and (not (= main_x main_y)) (<= main_a_x 0)), 53181#(and (not (= main_x main_y)) (<= main_a_x 1)), 53182#(and (not (= main_x main_y)) (<= main_a_x 2)), 53183#(and (not (= main_x main_y)) (<= main_a_x 3)), 53184#(and (<= main_a_x 4) (not (= main_x main_y))), 53185#(and (<= main_a_x 5) (not (= main_x main_y))), 53186#(and (not (= main_x main_y)) (<= main_a_x 6)), 53187#(and (<= main_a_x 7) (not (= main_x main_y))), 53188#(and (not (= main_x main_y)) (<= main_a_x 8)), 53189#(and (not (= main_x main_y)) (<= main_a_x 9)), 53190#(and (<= main_a_x 10) (not (= main_x main_y))), 53191#(and (not (= main_x main_y)) (<= main_a_x 11)), 53192#(and (not (= main_x main_y)) (<= main_a_x 12)), 53193#(and (<= main_a_x 13) (not (= main_x main_y))), 53194#(and (not (= main_x main_y)) (<= main_a_x 14)), 53195#(and (<= main_a_x 15) (not (= main_x main_y))), 53196#(and (not (= main_x main_y)) (<= main_a_x 16)), 53197#(and (not (= main_x main_y)) (<= main_a_x 17)), 53198#(and (<= main_a_x 18) (not (= main_x main_y))), 53199#(and (<= main_a_x 19) (not (= main_x main_y))), 53200#(and (not (= main_x main_y)) (<= main_a_x 20)), 53201#(and (not (= main_x main_y)) (<= main_a_x 21)), 53202#(and (not (= main_x main_y)) (<= main_a_x 22)), 53203#(and (<= main_a_x 23) (not (= main_x main_y))), 53204#(and (not (= main_x main_y)) (<= main_a_x 24)), 53205#(and (<= main_a_x 25) (not (= main_x main_y))), 53206#(and (not (= main_x main_y)) (<= main_a_x 26)), 53207#(and (not (= main_x main_y)) (<= main_a_x 27)), 53208#(and (not (= main_x main_y)) (<= main_a_x 28)), 53209#(and (not (= main_x main_y)) (<= main_a_x 29)), 53210#(and (<= main_a_x 30) (not (= main_x main_y))), 53211#(and (<= main_a_x 31) (not (= main_x main_y))), 53212#(and (not (= main_x main_y)) (<= main_a_x 32)), 53213#(and (not (= main_x main_y)) (<= main_a_x 33)), 53214#(and (not (= main_x main_y)) (<= main_a_x 34)), 53215#(and (<= main_a_x 35) (not (= main_x main_y))), 53216#(and (not (= main_x main_y)) (<= main_a_x 36)), 53217#(and (<= main_a_x 37) (not (= main_x main_y))), 53218#(and (not (= main_x main_y)) (<= main_a_x 38)), 53219#(and (<= main_a_x 39) (not (= main_x main_y))), 53220#(and (<= main_a_x 40) (not (= main_x main_y))), 53221#(and (not (= main_x main_y)) (<= main_a_x 41)), 53222#(and (not (= main_x main_y)) (<= main_a_x 42)), 53223#(and (<= main_a_x 43) (not (= main_x main_y))), 53224#(and (<= main_a_x 44) (not (= main_x main_y))), 53225#(and (<= main_a_x 45) (not (= main_x main_y))), 53226#(and (<= main_a_x 46) (not (= main_x main_y))), 53227#(and (<= main_a_x 47) (not (= main_x main_y))), 53228#(and (<= main_a_x 48) (not (= main_x main_y))), 53229#(and (not (= main_x main_y)) (<= main_a_x 49)), 53230#(and (not (= main_x main_y)) (<= main_a_x 50)), 53231#(and (<= main_a_x 51) (not (= main_x main_y))), 53232#(and (not (= main_x main_y)) (<= main_a_x 52)), 53233#(and (<= main_a_x 53) (not (= main_x main_y))), 53234#(and (<= main_a_x 54) (not (= main_x main_y))), 53235#(and (not (= main_x main_y)) (<= main_a_x 55)), 53236#(and (not (= main_x main_y)) (<= main_a_x 56)), 53237#(and (not (= main_x main_y)) (<= main_a_x 57)), 53238#(and (not (= main_x main_y)) (<= main_a_x 58)), 53239#(and (not (= main_x main_y)) (<= main_a_x 59)), 53240#(and (<= main_a_x 60) (not (= main_x main_y))), 53241#(and (not (= main_x main_y)) (<= main_a_x 61)), 53242#(and (not (= main_x main_y)) (<= main_a_x 62)), 53243#(and (<= main_a_x 63) (not (= main_x main_y))), 53244#(and (<= main_a_x 64) (not (= main_x main_y))), 53245#(and (<= main_a_x 65) (not (= main_x main_y))), 53246#(and (<= main_a_x 66) (not (= main_x main_y))), 53247#(and (<= main_a_x 67) (not (= main_x main_y)))] [2018-07-23 13:54:01,445 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 13:54:01,445 INFO L450 AbstractCegarLoop]: Interpolant automaton has 144 states [2018-07-23 13:54:01,446 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 144 interpolants. [2018-07-23 13:54:01,446 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10296, Invalid=10296, Unknown=0, NotChecked=0, Total=20592 [2018-07-23 13:54:01,446 INFO L87 Difference]: Start difference. First operand 145 states and 145 transitions. Second operand 144 states. [2018-07-23 13:54:01,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:01,574 INFO L93 Difference]: Finished difference Result 148 states and 148 transitions. [2018-07-23 13:54:01,574 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2018-07-23 13:54:01,574 INFO L78 Accepts]: Start accepts. Automaton has 144 states. Word has length 144 [2018-07-23 13:54:01,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:01,574 INFO L225 Difference]: With dead ends: 148 [2018-07-23 13:54:01,574 INFO L226 Difference]: Without dead ends: 146 [2018-07-23 13:54:01,575 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=10296, Invalid=10296, Unknown=0, NotChecked=0, Total=20592 [2018-07-23 13:54:01,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2018-07-23 13:54:01,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2018-07-23 13:54:01,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2018-07-23 13:54:01,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 146 transitions. [2018-07-23 13:54:01,579 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 146 transitions. Word has length 144 [2018-07-23 13:54:01,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:01,579 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 146 transitions. [2018-07-23 13:54:01,579 INFO L472 AbstractCegarLoop]: Interpolant automaton has 144 states. [2018-07-23 13:54:01,579 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 146 transitions. [2018-07-23 13:54:01,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-07-23 13:54:01,580 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:01,580 INFO L357 BasicCegarLoop]: trace histogram [142, 1, 1, 1] [2018-07-23 13:54:01,580 INFO L414 AbstractCegarLoop]: === Iteration 143 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:01,580 INFO L82 PathProgramCache]: Analyzing trace with hash 1532637516, now seen corresponding path program 142 times [2018-07-23 13:54:01,580 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:02,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:03,739 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 13:54:03,739 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:03,739 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [144] total 144 [2018-07-23 13:54:03,739 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:03,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:03,740 INFO L185 omatonBuilderFactory]: Interpolants [54016#(and (<= main_a_x 104) (not (= main_x main_y))), 54017#(and (<= main_a_x 105) (not (= main_x main_y))), 54018#(and (not (= main_x main_y)) (<= main_a_x 106)), 54019#(and (not (= main_x main_y)) (<= main_a_x 107)), 54020#(and (not (= main_x main_y)) (<= main_a_x 108)), 54021#(and (not (= main_x main_y)) (<= main_a_x 109)), 54022#(and (<= main_a_x 110) (not (= main_x main_y))), 54023#(and (not (= main_x main_y)) (<= main_a_x 111)), 54024#(and (<= main_a_x 112) (not (= main_x main_y))), 54025#(and (<= main_a_x 113) (not (= main_x main_y))), 54026#(and (not (= main_x main_y)) (<= main_a_x 114)), 54027#(and (not (= main_x main_y)) (<= main_a_x 115)), 54028#(and (not (= main_x main_y)) (<= main_a_x 116)), 54029#(and (<= main_a_x 117) (not (= main_x main_y))), 54030#(and (not (= main_x main_y)) (<= main_a_x 118)), 54031#(and (not (= main_x main_y)) (<= main_a_x 119)), 54032#(and (not (= main_x main_y)) (<= main_a_x 120)), 54033#(and (not (= main_x main_y)) (<= main_a_x 121)), 54034#(and (not (= main_x main_y)) (<= main_a_x 122)), 54035#(and (<= main_a_x 123) (not (= main_x main_y))), 54036#(and (not (= main_x main_y)) (<= main_a_x 124)), 54037#(and (not (= main_x main_y)) (<= main_a_x 125)), 54038#(and (not (= main_x main_y)) (<= main_a_x 126)), 54039#(and (not (= main_x main_y)) (<= main_a_x 127)), 54040#(and (<= main_a_x 128) (not (= main_x main_y))), 54041#(and (<= main_a_x 129) (not (= main_x main_y))), 54042#(and (not (= main_x main_y)) (<= main_a_x 130)), 54043#(and (not (= main_x main_y)) (<= main_a_x 131)), 54044#(and (not (= main_x main_y)) (<= main_a_x 132)), 54045#(and (not (= main_x main_y)) (<= main_a_x 133)), 54046#(and (not (= main_x main_y)) (<= main_a_x 134)), 54047#(and (<= main_a_x 135) (not (= main_x main_y))), 54048#(and (<= main_a_x 136) (not (= main_x main_y))), 54049#(and (not (= main_x main_y)) (<= main_a_x 137)), 54050#(and (not (= main_x main_y)) (<= main_a_x 138)), 54051#(and (not (= main_x main_y)) (<= main_a_x 139)), 54052#(and (<= main_a_x 140) (not (= main_x main_y))), 54053#(and (<= main_a_x 141) (not (= main_x main_y))), 54054#(<= main_a_x 142), 53910#true, 53911#false, 53912#(and (not (= main_x main_y)) (<= main_a_x 0)), 53913#(and (not (= main_x main_y)) (<= main_a_x 1)), 53914#(and (not (= main_x main_y)) (<= main_a_x 2)), 53915#(and (not (= main_x main_y)) (<= main_a_x 3)), 53916#(and (<= main_a_x 4) (not (= main_x main_y))), 53917#(and (<= main_a_x 5) (not (= main_x main_y))), 53918#(and (not (= main_x main_y)) (<= main_a_x 6)), 53919#(and (<= main_a_x 7) (not (= main_x main_y))), 53920#(and (not (= main_x main_y)) (<= main_a_x 8)), 53921#(and (not (= main_x main_y)) (<= main_a_x 9)), 53922#(and (<= main_a_x 10) (not (= main_x main_y))), 53923#(and (not (= main_x main_y)) (<= main_a_x 11)), 53924#(and (not (= main_x main_y)) (<= main_a_x 12)), 53925#(and (<= main_a_x 13) (not (= main_x main_y))), 53926#(and (not (= main_x main_y)) (<= main_a_x 14)), 53927#(and (<= main_a_x 15) (not (= main_x main_y))), 53928#(and (not (= main_x main_y)) (<= main_a_x 16)), 53929#(and (not (= main_x main_y)) (<= main_a_x 17)), 53930#(and (<= main_a_x 18) (not (= main_x main_y))), 53931#(and (<= main_a_x 19) (not (= main_x main_y))), 53932#(and (not (= main_x main_y)) (<= main_a_x 20)), 53933#(and (not (= main_x main_y)) (<= main_a_x 21)), 53934#(and (not (= main_x main_y)) (<= main_a_x 22)), 53935#(and (<= main_a_x 23) (not (= main_x main_y))), 53936#(and (not (= main_x main_y)) (<= main_a_x 24)), 53937#(and (<= main_a_x 25) (not (= main_x main_y))), 53938#(and (not (= main_x main_y)) (<= main_a_x 26)), 53939#(and (not (= main_x main_y)) (<= main_a_x 27)), 53940#(and (not (= main_x main_y)) (<= main_a_x 28)), 53941#(and (not (= main_x main_y)) (<= main_a_x 29)), 53942#(and (<= main_a_x 30) (not (= main_x main_y))), 53943#(and (<= main_a_x 31) (not (= main_x main_y))), 53944#(and (not (= main_x main_y)) (<= main_a_x 32)), 53945#(and (not (= main_x main_y)) (<= main_a_x 33)), 53946#(and (not (= main_x main_y)) (<= main_a_x 34)), 53947#(and (<= main_a_x 35) (not (= main_x main_y))), 53948#(and (not (= main_x main_y)) (<= main_a_x 36)), 53949#(and (<= main_a_x 37) (not (= main_x main_y))), 53950#(and (not (= main_x main_y)) (<= main_a_x 38)), 53951#(and (<= main_a_x 39) (not (= main_x main_y))), 53952#(and (<= main_a_x 40) (not (= main_x main_y))), 53953#(and (not (= main_x main_y)) (<= main_a_x 41)), 53954#(and (not (= main_x main_y)) (<= main_a_x 42)), 53955#(and (<= main_a_x 43) (not (= main_x main_y))), 53956#(and (<= main_a_x 44) (not (= main_x main_y))), 53957#(and (<= main_a_x 45) (not (= main_x main_y))), 53958#(and (<= main_a_x 46) (not (= main_x main_y))), 53959#(and (<= main_a_x 47) (not (= main_x main_y))), 53960#(and (<= main_a_x 48) (not (= main_x main_y))), 53961#(and (not (= main_x main_y)) (<= main_a_x 49)), 53962#(and (not (= main_x main_y)) (<= main_a_x 50)), 53963#(and (<= main_a_x 51) (not (= main_x main_y))), 53964#(and (not (= main_x main_y)) (<= main_a_x 52)), 53965#(and (<= main_a_x 53) (not (= main_x main_y))), 53966#(and (<= main_a_x 54) (not (= main_x main_y))), 53967#(and (not (= main_x main_y)) (<= main_a_x 55)), 53968#(and (not (= main_x main_y)) (<= main_a_x 56)), 53969#(and (not (= main_x main_y)) (<= main_a_x 57)), 53970#(and (not (= main_x main_y)) (<= main_a_x 58)), 53971#(and (not (= main_x main_y)) (<= main_a_x 59)), 53972#(and (<= main_a_x 60) (not (= main_x main_y))), 53973#(and (not (= main_x main_y)) (<= main_a_x 61)), 53974#(and (not (= main_x main_y)) (<= main_a_x 62)), 53975#(and (<= main_a_x 63) (not (= main_x main_y))), 53976#(and (<= main_a_x 64) (not (= main_x main_y))), 53977#(and (<= main_a_x 65) (not (= main_x main_y))), 53978#(and (<= main_a_x 66) (not (= main_x main_y))), 53979#(and (<= main_a_x 67) (not (= main_x main_y))), 53980#(and (not (= main_x main_y)) (<= main_a_x 68)), 53981#(and (<= main_a_x 69) (not (= main_x main_y))), 53982#(and (<= main_a_x 70) (not (= main_x main_y))), 53983#(and (<= main_a_x 71) (not (= main_x main_y))), 53984#(and (not (= main_x main_y)) (<= main_a_x 72)), 53985#(and (not (= main_x main_y)) (<= main_a_x 73)), 53986#(and (<= main_a_x 74) (not (= main_x main_y))), 53987#(and (<= main_a_x 75) (not (= main_x main_y))), 53988#(and (not (= main_x main_y)) (<= main_a_x 76)), 53989#(and (not (= main_x main_y)) (<= main_a_x 77)), 53990#(and (<= main_a_x 78) (not (= main_x main_y))), 53991#(and (<= main_a_x 79) (not (= main_x main_y))), 53992#(and (not (= main_x main_y)) (<= main_a_x 80)), 53993#(and (not (= main_x main_y)) (<= main_a_x 81)), 53994#(and (not (= main_x main_y)) (<= main_a_x 82)), 53995#(and (not (= main_x main_y)) (<= main_a_x 83)), 53996#(and (<= main_a_x 84) (not (= main_x main_y))), 53997#(and (not (= main_x main_y)) (<= main_a_x 85)), 53998#(and (not (= main_x main_y)) (<= main_a_x 86)), 53999#(and (<= main_a_x 87) (not (= main_x main_y))), 54000#(and (not (= main_x main_y)) (<= main_a_x 88)), 54001#(and (<= main_a_x 89) (not (= main_x main_y))), 54002#(and (not (= main_x main_y)) (<= main_a_x 90)), 54003#(and (<= main_a_x 91) (not (= main_x main_y))), 54004#(and (not (= main_x main_y)) (<= main_a_x 92)), 54005#(and (not (= main_x main_y)) (<= main_a_x 93)), 54006#(and (<= main_a_x 94) (not (= main_x main_y))), 54007#(and (<= main_a_x 95) (not (= main_x main_y))), 54008#(and (not (= main_x main_y)) (<= main_a_x 96)), 54009#(and (<= main_a_x 97) (not (= main_x main_y))), 54010#(and (not (= main_x main_y)) (<= main_a_x 98)), 54011#(and (<= main_a_x 99) (not (= main_x main_y))), 54012#(and (<= main_a_x 100) (not (= main_x main_y))), 54013#(and (not (= main_x main_y)) (<= main_a_x 101)), 54014#(and (not (= main_x main_y)) (<= main_a_x 102)), 54015#(and (not (= main_x main_y)) (<= main_a_x 103))] [2018-07-23 13:54:03,740 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 13:54:03,740 INFO L450 AbstractCegarLoop]: Interpolant automaton has 145 states [2018-07-23 13:54:03,742 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 145 interpolants. [2018-07-23 13:54:03,742 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10440, Invalid=10440, Unknown=0, NotChecked=0, Total=20880 [2018-07-23 13:54:03,743 INFO L87 Difference]: Start difference. First operand 146 states and 146 transitions. Second operand 145 states. [2018-07-23 13:54:03,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:03,884 INFO L93 Difference]: Finished difference Result 149 states and 149 transitions. [2018-07-23 13:54:03,884 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2018-07-23 13:54:03,884 INFO L78 Accepts]: Start accepts. Automaton has 145 states. Word has length 145 [2018-07-23 13:54:03,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:03,884 INFO L225 Difference]: With dead ends: 149 [2018-07-23 13:54:03,885 INFO L226 Difference]: Without dead ends: 147 [2018-07-23 13:54:03,886 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=10440, Invalid=10440, Unknown=0, NotChecked=0, Total=20880 [2018-07-23 13:54:03,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2018-07-23 13:54:03,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2018-07-23 13:54:03,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2018-07-23 13:54:03,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 147 transitions. [2018-07-23 13:54:03,892 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 147 transitions. Word has length 145 [2018-07-23 13:54:03,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:03,892 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 147 transitions. [2018-07-23 13:54:03,892 INFO L472 AbstractCegarLoop]: Interpolant automaton has 145 states. [2018-07-23 13:54:03,893 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 147 transitions. [2018-07-23 13:54:03,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-07-23 13:54:03,893 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:03,893 INFO L357 BasicCegarLoop]: trace histogram [143, 1, 1, 1] [2018-07-23 13:54:03,893 INFO L414 AbstractCegarLoop]: === Iteration 144 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:03,894 INFO L82 PathProgramCache]: Analyzing trace with hash 267138119, now seen corresponding path program 143 times [2018-07-23 13:54:03,894 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:04,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:06,196 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 13:54:06,197 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:06,197 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [145] total 145 [2018-07-23 13:54:06,197 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:06,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:06,197 INFO L185 omatonBuilderFactory]: Interpolants [54784#(and (<= main_a_x 135) (not (= main_x main_y))), 54785#(and (<= main_a_x 136) (not (= main_x main_y))), 54786#(and (not (= main_x main_y)) (<= main_a_x 137)), 54787#(and (not (= main_x main_y)) (<= main_a_x 138)), 54788#(and (not (= main_x main_y)) (<= main_a_x 139)), 54789#(and (<= main_a_x 140) (not (= main_x main_y))), 54790#(and (<= main_a_x 141) (not (= main_x main_y))), 54791#(and (not (= main_x main_y)) (<= main_a_x 142)), 54792#(<= main_a_x 143), 54647#true, 54648#false, 54649#(and (not (= main_x main_y)) (<= main_a_x 0)), 54650#(and (not (= main_x main_y)) (<= main_a_x 1)), 54651#(and (not (= main_x main_y)) (<= main_a_x 2)), 54652#(and (not (= main_x main_y)) (<= main_a_x 3)), 54653#(and (<= main_a_x 4) (not (= main_x main_y))), 54654#(and (<= main_a_x 5) (not (= main_x main_y))), 54655#(and (not (= main_x main_y)) (<= main_a_x 6)), 54656#(and (<= main_a_x 7) (not (= main_x main_y))), 54657#(and (not (= main_x main_y)) (<= main_a_x 8)), 54658#(and (not (= main_x main_y)) (<= main_a_x 9)), 54659#(and (<= main_a_x 10) (not (= main_x main_y))), 54660#(and (not (= main_x main_y)) (<= main_a_x 11)), 54661#(and (not (= main_x main_y)) (<= main_a_x 12)), 54662#(and (<= main_a_x 13) (not (= main_x main_y))), 54663#(and (not (= main_x main_y)) (<= main_a_x 14)), 54664#(and (<= main_a_x 15) (not (= main_x main_y))), 54665#(and (not (= main_x main_y)) (<= main_a_x 16)), 54666#(and (not (= main_x main_y)) (<= main_a_x 17)), 54667#(and (<= main_a_x 18) (not (= main_x main_y))), 54668#(and (<= main_a_x 19) (not (= main_x main_y))), 54669#(and (not (= main_x main_y)) (<= main_a_x 20)), 54670#(and (not (= main_x main_y)) (<= main_a_x 21)), 54671#(and (not (= main_x main_y)) (<= main_a_x 22)), 54672#(and (<= main_a_x 23) (not (= main_x main_y))), 54673#(and (not (= main_x main_y)) (<= main_a_x 24)), 54674#(and (<= main_a_x 25) (not (= main_x main_y))), 54675#(and (not (= main_x main_y)) (<= main_a_x 26)), 54676#(and (not (= main_x main_y)) (<= main_a_x 27)), 54677#(and (not (= main_x main_y)) (<= main_a_x 28)), 54678#(and (not (= main_x main_y)) (<= main_a_x 29)), 54679#(and (<= main_a_x 30) (not (= main_x main_y))), 54680#(and (<= main_a_x 31) (not (= main_x main_y))), 54681#(and (not (= main_x main_y)) (<= main_a_x 32)), 54682#(and (not (= main_x main_y)) (<= main_a_x 33)), 54683#(and (not (= main_x main_y)) (<= main_a_x 34)), 54684#(and (<= main_a_x 35) (not (= main_x main_y))), 54685#(and (not (= main_x main_y)) (<= main_a_x 36)), 54686#(and (<= main_a_x 37) (not (= main_x main_y))), 54687#(and (not (= main_x main_y)) (<= main_a_x 38)), 54688#(and (<= main_a_x 39) (not (= main_x main_y))), 54689#(and (<= main_a_x 40) (not (= main_x main_y))), 54690#(and (not (= main_x main_y)) (<= main_a_x 41)), 54691#(and (not (= main_x main_y)) (<= main_a_x 42)), 54692#(and (<= main_a_x 43) (not (= main_x main_y))), 54693#(and (<= main_a_x 44) (not (= main_x main_y))), 54694#(and (<= main_a_x 45) (not (= main_x main_y))), 54695#(and (<= main_a_x 46) (not (= main_x main_y))), 54696#(and (<= main_a_x 47) (not (= main_x main_y))), 54697#(and (<= main_a_x 48) (not (= main_x main_y))), 54698#(and (not (= main_x main_y)) (<= main_a_x 49)), 54699#(and (not (= main_x main_y)) (<= main_a_x 50)), 54700#(and (<= main_a_x 51) (not (= main_x main_y))), 54701#(and (not (= main_x main_y)) (<= main_a_x 52)), 54702#(and (<= main_a_x 53) (not (= main_x main_y))), 54703#(and (<= main_a_x 54) (not (= main_x main_y))), 54704#(and (not (= main_x main_y)) (<= main_a_x 55)), 54705#(and (not (= main_x main_y)) (<= main_a_x 56)), 54706#(and (not (= main_x main_y)) (<= main_a_x 57)), 54707#(and (not (= main_x main_y)) (<= main_a_x 58)), 54708#(and (not (= main_x main_y)) (<= main_a_x 59)), 54709#(and (<= main_a_x 60) (not (= main_x main_y))), 54710#(and (not (= main_x main_y)) (<= main_a_x 61)), 54711#(and (not (= main_x main_y)) (<= main_a_x 62)), 54712#(and (<= main_a_x 63) (not (= main_x main_y))), 54713#(and (<= main_a_x 64) (not (= main_x main_y))), 54714#(and (<= main_a_x 65) (not (= main_x main_y))), 54715#(and (<= main_a_x 66) (not (= main_x main_y))), 54716#(and (<= main_a_x 67) (not (= main_x main_y))), 54717#(and (not (= main_x main_y)) (<= main_a_x 68)), 54718#(and (<= main_a_x 69) (not (= main_x main_y))), 54719#(and (<= main_a_x 70) (not (= main_x main_y))), 54720#(and (<= main_a_x 71) (not (= main_x main_y))), 54721#(and (not (= main_x main_y)) (<= main_a_x 72)), 54722#(and (not (= main_x main_y)) (<= main_a_x 73)), 54723#(and (<= main_a_x 74) (not (= main_x main_y))), 54724#(and (<= main_a_x 75) (not (= main_x main_y))), 54725#(and (not (= main_x main_y)) (<= main_a_x 76)), 54726#(and (not (= main_x main_y)) (<= main_a_x 77)), 54727#(and (<= main_a_x 78) (not (= main_x main_y))), 54728#(and (<= main_a_x 79) (not (= main_x main_y))), 54729#(and (not (= main_x main_y)) (<= main_a_x 80)), 54730#(and (not (= main_x main_y)) (<= main_a_x 81)), 54731#(and (not (= main_x main_y)) (<= main_a_x 82)), 54732#(and (not (= main_x main_y)) (<= main_a_x 83)), 54733#(and (<= main_a_x 84) (not (= main_x main_y))), 54734#(and (not (= main_x main_y)) (<= main_a_x 85)), 54735#(and (not (= main_x main_y)) (<= main_a_x 86)), 54736#(and (<= main_a_x 87) (not (= main_x main_y))), 54737#(and (not (= main_x main_y)) (<= main_a_x 88)), 54738#(and (<= main_a_x 89) (not (= main_x main_y))), 54739#(and (not (= main_x main_y)) (<= main_a_x 90)), 54740#(and (<= main_a_x 91) (not (= main_x main_y))), 54741#(and (not (= main_x main_y)) (<= main_a_x 92)), 54742#(and (not (= main_x main_y)) (<= main_a_x 93)), 54743#(and (<= main_a_x 94) (not (= main_x main_y))), 54744#(and (<= main_a_x 95) (not (= main_x main_y))), 54745#(and (not (= main_x main_y)) (<= main_a_x 96)), 54746#(and (<= main_a_x 97) (not (= main_x main_y))), 54747#(and (not (= main_x main_y)) (<= main_a_x 98)), 54748#(and (<= main_a_x 99) (not (= main_x main_y))), 54749#(and (<= main_a_x 100) (not (= main_x main_y))), 54750#(and (not (= main_x main_y)) (<= main_a_x 101)), 54751#(and (not (= main_x main_y)) (<= main_a_x 102)), 54752#(and (not (= main_x main_y)) (<= main_a_x 103)), 54753#(and (<= main_a_x 104) (not (= main_x main_y))), 54754#(and (<= main_a_x 105) (not (= main_x main_y))), 54755#(and (not (= main_x main_y)) (<= main_a_x 106)), 54756#(and (not (= main_x main_y)) (<= main_a_x 107)), 54757#(and (not (= main_x main_y)) (<= main_a_x 108)), 54758#(and (not (= main_x main_y)) (<= main_a_x 109)), 54759#(and (<= main_a_x 110) (not (= main_x main_y))), 54760#(and (not (= main_x main_y)) (<= main_a_x 111)), 54761#(and (<= main_a_x 112) (not (= main_x main_y))), 54762#(and (<= main_a_x 113) (not (= main_x main_y))), 54763#(and (not (= main_x main_y)) (<= main_a_x 114)), 54764#(and (not (= main_x main_y)) (<= main_a_x 115)), 54765#(and (not (= main_x main_y)) (<= main_a_x 116)), 54766#(and (<= main_a_x 117) (not (= main_x main_y))), 54767#(and (not (= main_x main_y)) (<= main_a_x 118)), 54768#(and (not (= main_x main_y)) (<= main_a_x 119)), 54769#(and (not (= main_x main_y)) (<= main_a_x 120)), 54770#(and (not (= main_x main_y)) (<= main_a_x 121)), 54771#(and (not (= main_x main_y)) (<= main_a_x 122)), 54772#(and (<= main_a_x 123) (not (= main_x main_y))), 54773#(and (not (= main_x main_y)) (<= main_a_x 124)), 54774#(and (not (= main_x main_y)) (<= main_a_x 125)), 54775#(and (not (= main_x main_y)) (<= main_a_x 126)), 54776#(and (not (= main_x main_y)) (<= main_a_x 127)), 54777#(and (<= main_a_x 128) (not (= main_x main_y))), 54778#(and (<= main_a_x 129) (not (= main_x main_y))), 54779#(and (not (= main_x main_y)) (<= main_a_x 130)), 54780#(and (not (= main_x main_y)) (<= main_a_x 131)), 54781#(and (not (= main_x main_y)) (<= main_a_x 132)), 54782#(and (not (= main_x main_y)) (<= main_a_x 133)), 54783#(and (not (= main_x main_y)) (<= main_a_x 134))] [2018-07-23 13:54:06,198 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 13:54:06,198 INFO L450 AbstractCegarLoop]: Interpolant automaton has 146 states [2018-07-23 13:54:06,200 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 146 interpolants. [2018-07-23 13:54:06,200 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10585, Invalid=10585, Unknown=0, NotChecked=0, Total=21170 [2018-07-23 13:54:06,200 INFO L87 Difference]: Start difference. First operand 147 states and 147 transitions. Second operand 146 states. [2018-07-23 13:54:06,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:06,548 INFO L93 Difference]: Finished difference Result 150 states and 150 transitions. [2018-07-23 13:54:06,548 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 146 states. [2018-07-23 13:54:06,548 INFO L78 Accepts]: Start accepts. Automaton has 146 states. Word has length 146 [2018-07-23 13:54:06,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:06,549 INFO L225 Difference]: With dead ends: 150 [2018-07-23 13:54:06,549 INFO L226 Difference]: Without dead ends: 148 [2018-07-23 13:54:06,550 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 144 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=10585, Invalid=10585, Unknown=0, NotChecked=0, Total=21170 [2018-07-23 13:54:06,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-07-23 13:54:06,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2018-07-23 13:54:06,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2018-07-23 13:54:06,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 148 transitions. [2018-07-23 13:54:06,555 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 148 transitions. Word has length 146 [2018-07-23 13:54:06,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:06,555 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 148 transitions. [2018-07-23 13:54:06,555 INFO L472 AbstractCegarLoop]: Interpolant automaton has 146 states. [2018-07-23 13:54:06,555 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 148 transitions. [2018-07-23 13:54:06,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-07-23 13:54:06,555 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:06,555 INFO L357 BasicCegarLoop]: trace histogram [144, 1, 1, 1] [2018-07-23 13:54:06,556 INFO L414 AbstractCegarLoop]: === Iteration 145 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:06,556 INFO L82 PathProgramCache]: Analyzing trace with hash -308637524, now seen corresponding path program 144 times [2018-07-23 13:54:06,556 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:07,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:09,126 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 13:54:09,126 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:09,127 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [146] total 146 [2018-07-23 13:54:09,127 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:09,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:09,127 INFO L185 omatonBuilderFactory]: Interpolants [55389#true, 55390#false, 55391#(and (not (= main_x main_y)) (<= main_a_x 0)), 55392#(and (not (= main_x main_y)) (<= main_a_x 1)), 55393#(and (not (= main_x main_y)) (<= main_a_x 2)), 55394#(and (not (= main_x main_y)) (<= main_a_x 3)), 55395#(and (<= main_a_x 4) (not (= main_x main_y))), 55396#(and (<= main_a_x 5) (not (= main_x main_y))), 55397#(and (not (= main_x main_y)) (<= main_a_x 6)), 55398#(and (<= main_a_x 7) (not (= main_x main_y))), 55399#(and (not (= main_x main_y)) (<= main_a_x 8)), 55400#(and (not (= main_x main_y)) (<= main_a_x 9)), 55401#(and (<= main_a_x 10) (not (= main_x main_y))), 55402#(and (not (= main_x main_y)) (<= main_a_x 11)), 55403#(and (not (= main_x main_y)) (<= main_a_x 12)), 55404#(and (<= main_a_x 13) (not (= main_x main_y))), 55405#(and (not (= main_x main_y)) (<= main_a_x 14)), 55406#(and (<= main_a_x 15) (not (= main_x main_y))), 55407#(and (not (= main_x main_y)) (<= main_a_x 16)), 55408#(and (not (= main_x main_y)) (<= main_a_x 17)), 55409#(and (<= main_a_x 18) (not (= main_x main_y))), 55410#(and (<= main_a_x 19) (not (= main_x main_y))), 55411#(and (not (= main_x main_y)) (<= main_a_x 20)), 55412#(and (not (= main_x main_y)) (<= main_a_x 21)), 55413#(and (not (= main_x main_y)) (<= main_a_x 22)), 55414#(and (<= main_a_x 23) (not (= main_x main_y))), 55415#(and (not (= main_x main_y)) (<= main_a_x 24)), 55416#(and (<= main_a_x 25) (not (= main_x main_y))), 55417#(and (not (= main_x main_y)) (<= main_a_x 26)), 55418#(and (not (= main_x main_y)) (<= main_a_x 27)), 55419#(and (not (= main_x main_y)) (<= main_a_x 28)), 55420#(and (not (= main_x main_y)) (<= main_a_x 29)), 55421#(and (<= main_a_x 30) (not (= main_x main_y))), 55422#(and (<= main_a_x 31) (not (= main_x main_y))), 55423#(and (not (= main_x main_y)) (<= main_a_x 32)), 55424#(and (not (= main_x main_y)) (<= main_a_x 33)), 55425#(and (not (= main_x main_y)) (<= main_a_x 34)), 55426#(and (<= main_a_x 35) (not (= main_x main_y))), 55427#(and (not (= main_x main_y)) (<= main_a_x 36)), 55428#(and (<= main_a_x 37) (not (= main_x main_y))), 55429#(and (not (= main_x main_y)) (<= main_a_x 38)), 55430#(and (<= main_a_x 39) (not (= main_x main_y))), 55431#(and (<= main_a_x 40) (not (= main_x main_y))), 55432#(and (not (= main_x main_y)) (<= main_a_x 41)), 55433#(and (not (= main_x main_y)) (<= main_a_x 42)), 55434#(and (<= main_a_x 43) (not (= main_x main_y))), 55435#(and (<= main_a_x 44) (not (= main_x main_y))), 55436#(and (<= main_a_x 45) (not (= main_x main_y))), 55437#(and (<= main_a_x 46) (not (= main_x main_y))), 55438#(and (<= main_a_x 47) (not (= main_x main_y))), 55439#(and (<= main_a_x 48) (not (= main_x main_y))), 55440#(and (not (= main_x main_y)) (<= main_a_x 49)), 55441#(and (not (= main_x main_y)) (<= main_a_x 50)), 55442#(and (<= main_a_x 51) (not (= main_x main_y))), 55443#(and (not (= main_x main_y)) (<= main_a_x 52)), 55444#(and (<= main_a_x 53) (not (= main_x main_y))), 55445#(and (<= main_a_x 54) (not (= main_x main_y))), 55446#(and (not (= main_x main_y)) (<= main_a_x 55)), 55447#(and (not (= main_x main_y)) (<= main_a_x 56)), 55448#(and (not (= main_x main_y)) (<= main_a_x 57)), 55449#(and (not (= main_x main_y)) (<= main_a_x 58)), 55450#(and (not (= main_x main_y)) (<= main_a_x 59)), 55451#(and (<= main_a_x 60) (not (= main_x main_y))), 55452#(and (not (= main_x main_y)) (<= main_a_x 61)), 55453#(and (not (= main_x main_y)) (<= main_a_x 62)), 55454#(and (<= main_a_x 63) (not (= main_x main_y))), 55455#(and (<= main_a_x 64) (not (= main_x main_y))), 55456#(and (<= main_a_x 65) (not (= main_x main_y))), 55457#(and (<= main_a_x 66) (not (= main_x main_y))), 55458#(and (<= main_a_x 67) (not (= main_x main_y))), 55459#(and (not (= main_x main_y)) (<= main_a_x 68)), 55460#(and (<= main_a_x 69) (not (= main_x main_y))), 55461#(and (<= main_a_x 70) (not (= main_x main_y))), 55462#(and (<= main_a_x 71) (not (= main_x main_y))), 55463#(and (not (= main_x main_y)) (<= main_a_x 72)), 55464#(and (not (= main_x main_y)) (<= main_a_x 73)), 55465#(and (<= main_a_x 74) (not (= main_x main_y))), 55466#(and (<= main_a_x 75) (not (= main_x main_y))), 55467#(and (not (= main_x main_y)) (<= main_a_x 76)), 55468#(and (not (= main_x main_y)) (<= main_a_x 77)), 55469#(and (<= main_a_x 78) (not (= main_x main_y))), 55470#(and (<= main_a_x 79) (not (= main_x main_y))), 55471#(and (not (= main_x main_y)) (<= main_a_x 80)), 55472#(and (not (= main_x main_y)) (<= main_a_x 81)), 55473#(and (not (= main_x main_y)) (<= main_a_x 82)), 55474#(and (not (= main_x main_y)) (<= main_a_x 83)), 55475#(and (<= main_a_x 84) (not (= main_x main_y))), 55476#(and (not (= main_x main_y)) (<= main_a_x 85)), 55477#(and (not (= main_x main_y)) (<= main_a_x 86)), 55478#(and (<= main_a_x 87) (not (= main_x main_y))), 55479#(and (not (= main_x main_y)) (<= main_a_x 88)), 55480#(and (<= main_a_x 89) (not (= main_x main_y))), 55481#(and (not (= main_x main_y)) (<= main_a_x 90)), 55482#(and (<= main_a_x 91) (not (= main_x main_y))), 55483#(and (not (= main_x main_y)) (<= main_a_x 92)), 55484#(and (not (= main_x main_y)) (<= main_a_x 93)), 55485#(and (<= main_a_x 94) (not (= main_x main_y))), 55486#(and (<= main_a_x 95) (not (= main_x main_y))), 55487#(and (not (= main_x main_y)) (<= main_a_x 96)), 55488#(and (<= main_a_x 97) (not (= main_x main_y))), 55489#(and (not (= main_x main_y)) (<= main_a_x 98)), 55490#(and (<= main_a_x 99) (not (= main_x main_y))), 55491#(and (<= main_a_x 100) (not (= main_x main_y))), 55492#(and (not (= main_x main_y)) (<= main_a_x 101)), 55493#(and (not (= main_x main_y)) (<= main_a_x 102)), 55494#(and (not (= main_x main_y)) (<= main_a_x 103)), 55495#(and (<= main_a_x 104) (not (= main_x main_y))), 55496#(and (<= main_a_x 105) (not (= main_x main_y))), 55497#(and (not (= main_x main_y)) (<= main_a_x 106)), 55498#(and (not (= main_x main_y)) (<= main_a_x 107)), 55499#(and (not (= main_x main_y)) (<= main_a_x 108)), 55500#(and (not (= main_x main_y)) (<= main_a_x 109)), 55501#(and (<= main_a_x 110) (not (= main_x main_y))), 55502#(and (not (= main_x main_y)) (<= main_a_x 111)), 55503#(and (<= main_a_x 112) (not (= main_x main_y))), 55504#(and (<= main_a_x 113) (not (= main_x main_y))), 55505#(and (not (= main_x main_y)) (<= main_a_x 114)), 55506#(and (not (= main_x main_y)) (<= main_a_x 115)), 55507#(and (not (= main_x main_y)) (<= main_a_x 116)), 55508#(and (<= main_a_x 117) (not (= main_x main_y))), 55509#(and (not (= main_x main_y)) (<= main_a_x 118)), 55510#(and (not (= main_x main_y)) (<= main_a_x 119)), 55511#(and (not (= main_x main_y)) (<= main_a_x 120)), 55512#(and (not (= main_x main_y)) (<= main_a_x 121)), 55513#(and (not (= main_x main_y)) (<= main_a_x 122)), 55514#(and (<= main_a_x 123) (not (= main_x main_y))), 55515#(and (not (= main_x main_y)) (<= main_a_x 124)), 55516#(and (not (= main_x main_y)) (<= main_a_x 125)), 55517#(and (not (= main_x main_y)) (<= main_a_x 126)), 55518#(and (not (= main_x main_y)) (<= main_a_x 127)), 55519#(and (<= main_a_x 128) (not (= main_x main_y))), 55520#(and (<= main_a_x 129) (not (= main_x main_y))), 55521#(and (not (= main_x main_y)) (<= main_a_x 130)), 55522#(and (not (= main_x main_y)) (<= main_a_x 131)), 55523#(and (not (= main_x main_y)) (<= main_a_x 132)), 55524#(and (not (= main_x main_y)) (<= main_a_x 133)), 55525#(and (not (= main_x main_y)) (<= main_a_x 134)), 55526#(and (<= main_a_x 135) (not (= main_x main_y))), 55527#(and (<= main_a_x 136) (not (= main_x main_y))), 55528#(and (not (= main_x main_y)) (<= main_a_x 137)), 55529#(and (not (= main_x main_y)) (<= main_a_x 138)), 55530#(and (not (= main_x main_y)) (<= main_a_x 139)), 55531#(and (<= main_a_x 140) (not (= main_x main_y))), 55532#(and (<= main_a_x 141) (not (= main_x main_y))), 55533#(and (not (= main_x main_y)) (<= main_a_x 142)), 55534#(and (<= main_a_x 143) (not (= main_x main_y))), 55535#(<= main_a_x 144)] [2018-07-23 13:54:09,128 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 13:54:09,128 INFO L450 AbstractCegarLoop]: Interpolant automaton has 147 states [2018-07-23 13:54:09,130 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 147 interpolants. [2018-07-23 13:54:09,130 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10731, Invalid=10731, Unknown=0, NotChecked=0, Total=21462 [2018-07-23 13:54:09,130 INFO L87 Difference]: Start difference. First operand 148 states and 148 transitions. Second operand 147 states. [2018-07-23 13:54:09,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:09,461 INFO L93 Difference]: Finished difference Result 151 states and 151 transitions. [2018-07-23 13:54:09,461 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 147 states. [2018-07-23 13:54:09,461 INFO L78 Accepts]: Start accepts. Automaton has 147 states. Word has length 147 [2018-07-23 13:54:09,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:09,461 INFO L225 Difference]: With dead ends: 151 [2018-07-23 13:54:09,461 INFO L226 Difference]: Without dead ends: 149 [2018-07-23 13:54:09,463 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=10731, Invalid=10731, Unknown=0, NotChecked=0, Total=21462 [2018-07-23 13:54:09,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2018-07-23 13:54:09,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2018-07-23 13:54:09,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2018-07-23 13:54:09,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 149 transitions. [2018-07-23 13:54:09,467 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 149 transitions. Word has length 147 [2018-07-23 13:54:09,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:09,467 INFO L471 AbstractCegarLoop]: Abstraction has 149 states and 149 transitions. [2018-07-23 13:54:09,467 INFO L472 AbstractCegarLoop]: Interpolant automaton has 147 states. [2018-07-23 13:54:09,467 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 149 transitions. [2018-07-23 13:54:09,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2018-07-23 13:54:09,468 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:09,468 INFO L357 BasicCegarLoop]: trace histogram [145, 1, 1, 1] [2018-07-23 13:54:09,468 INFO L414 AbstractCegarLoop]: === Iteration 146 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:09,468 INFO L82 PathProgramCache]: Analyzing trace with hash -977813273, now seen corresponding path program 145 times [2018-07-23 13:54:09,468 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:10,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:11,844 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 13:54:11,845 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:11,845 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [147] total 147 [2018-07-23 13:54:11,845 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:11,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:11,846 INFO L185 omatonBuilderFactory]: Interpolants [56136#true, 56137#false, 56138#(and (not (= main_x main_y)) (<= main_a_x 0)), 56139#(and (not (= main_x main_y)) (<= main_a_x 1)), 56140#(and (not (= main_x main_y)) (<= main_a_x 2)), 56141#(and (not (= main_x main_y)) (<= main_a_x 3)), 56142#(and (<= main_a_x 4) (not (= main_x main_y))), 56143#(and (<= main_a_x 5) (not (= main_x main_y))), 56144#(and (not (= main_x main_y)) (<= main_a_x 6)), 56145#(and (<= main_a_x 7) (not (= main_x main_y))), 56146#(and (not (= main_x main_y)) (<= main_a_x 8)), 56147#(and (not (= main_x main_y)) (<= main_a_x 9)), 56148#(and (<= main_a_x 10) (not (= main_x main_y))), 56149#(and (not (= main_x main_y)) (<= main_a_x 11)), 56150#(and (not (= main_x main_y)) (<= main_a_x 12)), 56151#(and (<= main_a_x 13) (not (= main_x main_y))), 56152#(and (not (= main_x main_y)) (<= main_a_x 14)), 56153#(and (<= main_a_x 15) (not (= main_x main_y))), 56154#(and (not (= main_x main_y)) (<= main_a_x 16)), 56155#(and (not (= main_x main_y)) (<= main_a_x 17)), 56156#(and (<= main_a_x 18) (not (= main_x main_y))), 56157#(and (<= main_a_x 19) (not (= main_x main_y))), 56158#(and (not (= main_x main_y)) (<= main_a_x 20)), 56159#(and (not (= main_x main_y)) (<= main_a_x 21)), 56160#(and (not (= main_x main_y)) (<= main_a_x 22)), 56161#(and (<= main_a_x 23) (not (= main_x main_y))), 56162#(and (not (= main_x main_y)) (<= main_a_x 24)), 56163#(and (<= main_a_x 25) (not (= main_x main_y))), 56164#(and (not (= main_x main_y)) (<= main_a_x 26)), 56165#(and (not (= main_x main_y)) (<= main_a_x 27)), 56166#(and (not (= main_x main_y)) (<= main_a_x 28)), 56167#(and (not (= main_x main_y)) (<= main_a_x 29)), 56168#(and (<= main_a_x 30) (not (= main_x main_y))), 56169#(and (<= main_a_x 31) (not (= main_x main_y))), 56170#(and (not (= main_x main_y)) (<= main_a_x 32)), 56171#(and (not (= main_x main_y)) (<= main_a_x 33)), 56172#(and (not (= main_x main_y)) (<= main_a_x 34)), 56173#(and (<= main_a_x 35) (not (= main_x main_y))), 56174#(and (not (= main_x main_y)) (<= main_a_x 36)), 56175#(and (<= main_a_x 37) (not (= main_x main_y))), 56176#(and (not (= main_x main_y)) (<= main_a_x 38)), 56177#(and (<= main_a_x 39) (not (= main_x main_y))), 56178#(and (<= main_a_x 40) (not (= main_x main_y))), 56179#(and (not (= main_x main_y)) (<= main_a_x 41)), 56180#(and (not (= main_x main_y)) (<= main_a_x 42)), 56181#(and (<= main_a_x 43) (not (= main_x main_y))), 56182#(and (<= main_a_x 44) (not (= main_x main_y))), 56183#(and (<= main_a_x 45) (not (= main_x main_y))), 56184#(and (<= main_a_x 46) (not (= main_x main_y))), 56185#(and (<= main_a_x 47) (not (= main_x main_y))), 56186#(and (<= main_a_x 48) (not (= main_x main_y))), 56187#(and (not (= main_x main_y)) (<= main_a_x 49)), 56188#(and (not (= main_x main_y)) (<= main_a_x 50)), 56189#(and (<= main_a_x 51) (not (= main_x main_y))), 56190#(and (not (= main_x main_y)) (<= main_a_x 52)), 56191#(and (<= main_a_x 53) (not (= main_x main_y))), 56192#(and (<= main_a_x 54) (not (= main_x main_y))), 56193#(and (not (= main_x main_y)) (<= main_a_x 55)), 56194#(and (not (= main_x main_y)) (<= main_a_x 56)), 56195#(and (not (= main_x main_y)) (<= main_a_x 57)), 56196#(and (not (= main_x main_y)) (<= main_a_x 58)), 56197#(and (not (= main_x main_y)) (<= main_a_x 59)), 56198#(and (<= main_a_x 60) (not (= main_x main_y))), 56199#(and (not (= main_x main_y)) (<= main_a_x 61)), 56200#(and (not (= main_x main_y)) (<= main_a_x 62)), 56201#(and (<= main_a_x 63) (not (= main_x main_y))), 56202#(and (<= main_a_x 64) (not (= main_x main_y))), 56203#(and (<= main_a_x 65) (not (= main_x main_y))), 56204#(and (<= main_a_x 66) (not (= main_x main_y))), 56205#(and (<= main_a_x 67) (not (= main_x main_y))), 56206#(and (not (= main_x main_y)) (<= main_a_x 68)), 56207#(and (<= main_a_x 69) (not (= main_x main_y))), 56208#(and (<= main_a_x 70) (not (= main_x main_y))), 56209#(and (<= main_a_x 71) (not (= main_x main_y))), 56210#(and (not (= main_x main_y)) (<= main_a_x 72)), 56211#(and (not (= main_x main_y)) (<= main_a_x 73)), 56212#(and (<= main_a_x 74) (not (= main_x main_y))), 56213#(and (<= main_a_x 75) (not (= main_x main_y))), 56214#(and (not (= main_x main_y)) (<= main_a_x 76)), 56215#(and (not (= main_x main_y)) (<= main_a_x 77)), 56216#(and (<= main_a_x 78) (not (= main_x main_y))), 56217#(and (<= main_a_x 79) (not (= main_x main_y))), 56218#(and (not (= main_x main_y)) (<= main_a_x 80)), 56219#(and (not (= main_x main_y)) (<= main_a_x 81)), 56220#(and (not (= main_x main_y)) (<= main_a_x 82)), 56221#(and (not (= main_x main_y)) (<= main_a_x 83)), 56222#(and (<= main_a_x 84) (not (= main_x main_y))), 56223#(and (not (= main_x main_y)) (<= main_a_x 85)), 56224#(and (not (= main_x main_y)) (<= main_a_x 86)), 56225#(and (<= main_a_x 87) (not (= main_x main_y))), 56226#(and (not (= main_x main_y)) (<= main_a_x 88)), 56227#(and (<= main_a_x 89) (not (= main_x main_y))), 56228#(and (not (= main_x main_y)) (<= main_a_x 90)), 56229#(and (<= main_a_x 91) (not (= main_x main_y))), 56230#(and (not (= main_x main_y)) (<= main_a_x 92)), 56231#(and (not (= main_x main_y)) (<= main_a_x 93)), 56232#(and (<= main_a_x 94) (not (= main_x main_y))), 56233#(and (<= main_a_x 95) (not (= main_x main_y))), 56234#(and (not (= main_x main_y)) (<= main_a_x 96)), 56235#(and (<= main_a_x 97) (not (= main_x main_y))), 56236#(and (not (= main_x main_y)) (<= main_a_x 98)), 56237#(and (<= main_a_x 99) (not (= main_x main_y))), 56238#(and (<= main_a_x 100) (not (= main_x main_y))), 56239#(and (not (= main_x main_y)) (<= main_a_x 101)), 56240#(and (not (= main_x main_y)) (<= main_a_x 102)), 56241#(and (not (= main_x main_y)) (<= main_a_x 103)), 56242#(and (<= main_a_x 104) (not (= main_x main_y))), 56243#(and (<= main_a_x 105) (not (= main_x main_y))), 56244#(and (not (= main_x main_y)) (<= main_a_x 106)), 56245#(and (not (= main_x main_y)) (<= main_a_x 107)), 56246#(and (not (= main_x main_y)) (<= main_a_x 108)), 56247#(and (not (= main_x main_y)) (<= main_a_x 109)), 56248#(and (<= main_a_x 110) (not (= main_x main_y))), 56249#(and (not (= main_x main_y)) (<= main_a_x 111)), 56250#(and (<= main_a_x 112) (not (= main_x main_y))), 56251#(and (<= main_a_x 113) (not (= main_x main_y))), 56252#(and (not (= main_x main_y)) (<= main_a_x 114)), 56253#(and (not (= main_x main_y)) (<= main_a_x 115)), 56254#(and (not (= main_x main_y)) (<= main_a_x 116)), 56255#(and (<= main_a_x 117) (not (= main_x main_y))), 56256#(and (not (= main_x main_y)) (<= main_a_x 118)), 56257#(and (not (= main_x main_y)) (<= main_a_x 119)), 56258#(and (not (= main_x main_y)) (<= main_a_x 120)), 56259#(and (not (= main_x main_y)) (<= main_a_x 121)), 56260#(and (not (= main_x main_y)) (<= main_a_x 122)), 56261#(and (<= main_a_x 123) (not (= main_x main_y))), 56262#(and (not (= main_x main_y)) (<= main_a_x 124)), 56263#(and (not (= main_x main_y)) (<= main_a_x 125)), 56264#(and (not (= main_x main_y)) (<= main_a_x 126)), 56265#(and (not (= main_x main_y)) (<= main_a_x 127)), 56266#(and (<= main_a_x 128) (not (= main_x main_y))), 56267#(and (<= main_a_x 129) (not (= main_x main_y))), 56268#(and (not (= main_x main_y)) (<= main_a_x 130)), 56269#(and (not (= main_x main_y)) (<= main_a_x 131)), 56270#(and (not (= main_x main_y)) (<= main_a_x 132)), 56271#(and (not (= main_x main_y)) (<= main_a_x 133)), 56272#(and (not (= main_x main_y)) (<= main_a_x 134)), 56273#(and (<= main_a_x 135) (not (= main_x main_y))), 56274#(and (<= main_a_x 136) (not (= main_x main_y))), 56275#(and (not (= main_x main_y)) (<= main_a_x 137)), 56276#(and (not (= main_x main_y)) (<= main_a_x 138)), 56277#(and (not (= main_x main_y)) (<= main_a_x 139)), 56278#(and (<= main_a_x 140) (not (= main_x main_y))), 56279#(and (<= main_a_x 141) (not (= main_x main_y))), 56280#(and (not (= main_x main_y)) (<= main_a_x 142)), 56281#(and (<= main_a_x 143) (not (= main_x main_y))), 56282#(and (<= main_a_x 144) (not (= main_x main_y))), 56283#(<= main_a_x 145)] [2018-07-23 13:54:11,846 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 13:54:11,847 INFO L450 AbstractCegarLoop]: Interpolant automaton has 148 states [2018-07-23 13:54:11,848 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 148 interpolants. [2018-07-23 13:54:11,849 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10878, Invalid=10878, Unknown=0, NotChecked=0, Total=21756 [2018-07-23 13:54:11,850 INFO L87 Difference]: Start difference. First operand 149 states and 149 transitions. Second operand 148 states. [2018-07-23 13:54:12,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:12,184 INFO L93 Difference]: Finished difference Result 152 states and 152 transitions. [2018-07-23 13:54:12,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 148 states. [2018-07-23 13:54:12,184 INFO L78 Accepts]: Start accepts. Automaton has 148 states. Word has length 148 [2018-07-23 13:54:12,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:12,185 INFO L225 Difference]: With dead ends: 152 [2018-07-23 13:54:12,185 INFO L226 Difference]: Without dead ends: 150 [2018-07-23 13:54:12,186 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=10878, Invalid=10878, Unknown=0, NotChecked=0, Total=21756 [2018-07-23 13:54:12,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2018-07-23 13:54:12,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2018-07-23 13:54:12,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2018-07-23 13:54:12,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 150 transitions. [2018-07-23 13:54:12,192 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 150 transitions. Word has length 148 [2018-07-23 13:54:12,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:12,193 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 150 transitions. [2018-07-23 13:54:12,193 INFO L472 AbstractCegarLoop]: Interpolant automaton has 148 states. [2018-07-23 13:54:12,193 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 150 transitions. [2018-07-23 13:54:12,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-07-23 13:54:12,193 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:12,194 INFO L357 BasicCegarLoop]: trace histogram [146, 1, 1, 1] [2018-07-23 13:54:12,194 INFO L414 AbstractCegarLoop]: === Iteration 147 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:12,194 INFO L82 PathProgramCache]: Analyzing trace with hash -247425012, now seen corresponding path program 146 times [2018-07-23 13:54:12,194 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:12,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:14,855 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 13:54:14,855 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:14,855 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [148] total 148 [2018-07-23 13:54:14,855 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:14,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:14,856 INFO L185 omatonBuilderFactory]: Interpolants [56888#true, 56889#false, 56890#(and (not (= main_x main_y)) (<= main_a_x 0)), 56891#(and (not (= main_x main_y)) (<= main_a_x 1)), 56892#(and (not (= main_x main_y)) (<= main_a_x 2)), 56893#(and (not (= main_x main_y)) (<= main_a_x 3)), 56894#(and (<= main_a_x 4) (not (= main_x main_y))), 56895#(and (<= main_a_x 5) (not (= main_x main_y))), 56896#(and (not (= main_x main_y)) (<= main_a_x 6)), 56897#(and (<= main_a_x 7) (not (= main_x main_y))), 56898#(and (not (= main_x main_y)) (<= main_a_x 8)), 56899#(and (not (= main_x main_y)) (<= main_a_x 9)), 56900#(and (<= main_a_x 10) (not (= main_x main_y))), 56901#(and (not (= main_x main_y)) (<= main_a_x 11)), 56902#(and (not (= main_x main_y)) (<= main_a_x 12)), 56903#(and (<= main_a_x 13) (not (= main_x main_y))), 56904#(and (not (= main_x main_y)) (<= main_a_x 14)), 56905#(and (<= main_a_x 15) (not (= main_x main_y))), 56906#(and (not (= main_x main_y)) (<= main_a_x 16)), 56907#(and (not (= main_x main_y)) (<= main_a_x 17)), 56908#(and (<= main_a_x 18) (not (= main_x main_y))), 56909#(and (<= main_a_x 19) (not (= main_x main_y))), 56910#(and (not (= main_x main_y)) (<= main_a_x 20)), 56911#(and (not (= main_x main_y)) (<= main_a_x 21)), 56912#(and (not (= main_x main_y)) (<= main_a_x 22)), 56913#(and (<= main_a_x 23) (not (= main_x main_y))), 56914#(and (not (= main_x main_y)) (<= main_a_x 24)), 56915#(and (<= main_a_x 25) (not (= main_x main_y))), 56916#(and (not (= main_x main_y)) (<= main_a_x 26)), 56917#(and (not (= main_x main_y)) (<= main_a_x 27)), 56918#(and (not (= main_x main_y)) (<= main_a_x 28)), 56919#(and (not (= main_x main_y)) (<= main_a_x 29)), 56920#(and (<= main_a_x 30) (not (= main_x main_y))), 56921#(and (<= main_a_x 31) (not (= main_x main_y))), 56922#(and (not (= main_x main_y)) (<= main_a_x 32)), 56923#(and (not (= main_x main_y)) (<= main_a_x 33)), 56924#(and (not (= main_x main_y)) (<= main_a_x 34)), 56925#(and (<= main_a_x 35) (not (= main_x main_y))), 56926#(and (not (= main_x main_y)) (<= main_a_x 36)), 56927#(and (<= main_a_x 37) (not (= main_x main_y))), 56928#(and (not (= main_x main_y)) (<= main_a_x 38)), 56929#(and (<= main_a_x 39) (not (= main_x main_y))), 56930#(and (<= main_a_x 40) (not (= main_x main_y))), 56931#(and (not (= main_x main_y)) (<= main_a_x 41)), 56932#(and (not (= main_x main_y)) (<= main_a_x 42)), 56933#(and (<= main_a_x 43) (not (= main_x main_y))), 56934#(and (<= main_a_x 44) (not (= main_x main_y))), 56935#(and (<= main_a_x 45) (not (= main_x main_y))), 56936#(and (<= main_a_x 46) (not (= main_x main_y))), 56937#(and (<= main_a_x 47) (not (= main_x main_y))), 56938#(and (<= main_a_x 48) (not (= main_x main_y))), 56939#(and (not (= main_x main_y)) (<= main_a_x 49)), 56940#(and (not (= main_x main_y)) (<= main_a_x 50)), 56941#(and (<= main_a_x 51) (not (= main_x main_y))), 56942#(and (not (= main_x main_y)) (<= main_a_x 52)), 56943#(and (<= main_a_x 53) (not (= main_x main_y))), 56944#(and (<= main_a_x 54) (not (= main_x main_y))), 56945#(and (not (= main_x main_y)) (<= main_a_x 55)), 56946#(and (not (= main_x main_y)) (<= main_a_x 56)), 56947#(and (not (= main_x main_y)) (<= main_a_x 57)), 56948#(and (not (= main_x main_y)) (<= main_a_x 58)), 56949#(and (not (= main_x main_y)) (<= main_a_x 59)), 56950#(and (<= main_a_x 60) (not (= main_x main_y))), 56951#(and (not (= main_x main_y)) (<= main_a_x 61)), 56952#(and (not (= main_x main_y)) (<= main_a_x 62)), 56953#(and (<= main_a_x 63) (not (= main_x main_y))), 56954#(and (<= main_a_x 64) (not (= main_x main_y))), 56955#(and (<= main_a_x 65) (not (= main_x main_y))), 56956#(and (<= main_a_x 66) (not (= main_x main_y))), 56957#(and (<= main_a_x 67) (not (= main_x main_y))), 56958#(and (not (= main_x main_y)) (<= main_a_x 68)), 56959#(and (<= main_a_x 69) (not (= main_x main_y))), 56960#(and (<= main_a_x 70) (not (= main_x main_y))), 56961#(and (<= main_a_x 71) (not (= main_x main_y))), 56962#(and (not (= main_x main_y)) (<= main_a_x 72)), 56963#(and (not (= main_x main_y)) (<= main_a_x 73)), 56964#(and (<= main_a_x 74) (not (= main_x main_y))), 56965#(and (<= main_a_x 75) (not (= main_x main_y))), 56966#(and (not (= main_x main_y)) (<= main_a_x 76)), 56967#(and (not (= main_x main_y)) (<= main_a_x 77)), 56968#(and (<= main_a_x 78) (not (= main_x main_y))), 56969#(and (<= main_a_x 79) (not (= main_x main_y))), 56970#(and (not (= main_x main_y)) (<= main_a_x 80)), 56971#(and (not (= main_x main_y)) (<= main_a_x 81)), 56972#(and (not (= main_x main_y)) (<= main_a_x 82)), 56973#(and (not (= main_x main_y)) (<= main_a_x 83)), 56974#(and (<= main_a_x 84) (not (= main_x main_y))), 56975#(and (not (= main_x main_y)) (<= main_a_x 85)), 56976#(and (not (= main_x main_y)) (<= main_a_x 86)), 56977#(and (<= main_a_x 87) (not (= main_x main_y))), 56978#(and (not (= main_x main_y)) (<= main_a_x 88)), 56979#(and (<= main_a_x 89) (not (= main_x main_y))), 56980#(and (not (= main_x main_y)) (<= main_a_x 90)), 56981#(and (<= main_a_x 91) (not (= main_x main_y))), 56982#(and (not (= main_x main_y)) (<= main_a_x 92)), 56983#(and (not (= main_x main_y)) (<= main_a_x 93)), 56984#(and (<= main_a_x 94) (not (= main_x main_y))), 56985#(and (<= main_a_x 95) (not (= main_x main_y))), 56986#(and (not (= main_x main_y)) (<= main_a_x 96)), 56987#(and (<= main_a_x 97) (not (= main_x main_y))), 56988#(and (not (= main_x main_y)) (<= main_a_x 98)), 56989#(and (<= main_a_x 99) (not (= main_x main_y))), 56990#(and (<= main_a_x 100) (not (= main_x main_y))), 56991#(and (not (= main_x main_y)) (<= main_a_x 101)), 56992#(and (not (= main_x main_y)) (<= main_a_x 102)), 56993#(and (not (= main_x main_y)) (<= main_a_x 103)), 56994#(and (<= main_a_x 104) (not (= main_x main_y))), 56995#(and (<= main_a_x 105) (not (= main_x main_y))), 56996#(and (not (= main_x main_y)) (<= main_a_x 106)), 56997#(and (not (= main_x main_y)) (<= main_a_x 107)), 56998#(and (not (= main_x main_y)) (<= main_a_x 108)), 56999#(and (not (= main_x main_y)) (<= main_a_x 109)), 57000#(and (<= main_a_x 110) (not (= main_x main_y))), 57001#(and (not (= main_x main_y)) (<= main_a_x 111)), 57002#(and (<= main_a_x 112) (not (= main_x main_y))), 57003#(and (<= main_a_x 113) (not (= main_x main_y))), 57004#(and (not (= main_x main_y)) (<= main_a_x 114)), 57005#(and (not (= main_x main_y)) (<= main_a_x 115)), 57006#(and (not (= main_x main_y)) (<= main_a_x 116)), 57007#(and (<= main_a_x 117) (not (= main_x main_y))), 57008#(and (not (= main_x main_y)) (<= main_a_x 118)), 57009#(and (not (= main_x main_y)) (<= main_a_x 119)), 57010#(and (not (= main_x main_y)) (<= main_a_x 120)), 57011#(and (not (= main_x main_y)) (<= main_a_x 121)), 57012#(and (not (= main_x main_y)) (<= main_a_x 122)), 57013#(and (<= main_a_x 123) (not (= main_x main_y))), 57014#(and (not (= main_x main_y)) (<= main_a_x 124)), 57015#(and (not (= main_x main_y)) (<= main_a_x 125)), 57016#(and (not (= main_x main_y)) (<= main_a_x 126)), 57017#(and (not (= main_x main_y)) (<= main_a_x 127)), 57018#(and (<= main_a_x 128) (not (= main_x main_y))), 57019#(and (<= main_a_x 129) (not (= main_x main_y))), 57020#(and (not (= main_x main_y)) (<= main_a_x 130)), 57021#(and (not (= main_x main_y)) (<= main_a_x 131)), 57022#(and (not (= main_x main_y)) (<= main_a_x 132)), 57023#(and (not (= main_x main_y)) (<= main_a_x 133)), 57024#(and (not (= main_x main_y)) (<= main_a_x 134)), 57025#(and (<= main_a_x 135) (not (= main_x main_y))), 57026#(and (<= main_a_x 136) (not (= main_x main_y))), 57027#(and (not (= main_x main_y)) (<= main_a_x 137)), 57028#(and (not (= main_x main_y)) (<= main_a_x 138)), 57029#(and (not (= main_x main_y)) (<= main_a_x 139)), 57030#(and (<= main_a_x 140) (not (= main_x main_y))), 57031#(and (<= main_a_x 141) (not (= main_x main_y))), 57032#(and (not (= main_x main_y)) (<= main_a_x 142)), 57033#(and (<= main_a_x 143) (not (= main_x main_y))), 57034#(and (<= main_a_x 144) (not (= main_x main_y))), 57035#(and (not (= main_x main_y)) (<= main_a_x 145)), 57036#(<= main_a_x 146)] [2018-07-23 13:54:14,856 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 13:54:14,856 INFO L450 AbstractCegarLoop]: Interpolant automaton has 149 states [2018-07-23 13:54:14,857 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 149 interpolants. [2018-07-23 13:54:14,858 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11026, Invalid=11026, Unknown=0, NotChecked=0, Total=22052 [2018-07-23 13:54:14,858 INFO L87 Difference]: Start difference. First operand 150 states and 150 transitions. Second operand 149 states. [2018-07-23 13:54:15,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:15,172 INFO L93 Difference]: Finished difference Result 153 states and 153 transitions. [2018-07-23 13:54:15,172 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 149 states. [2018-07-23 13:54:15,172 INFO L78 Accepts]: Start accepts. Automaton has 149 states. Word has length 149 [2018-07-23 13:54:15,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:15,173 INFO L225 Difference]: With dead ends: 153 [2018-07-23 13:54:15,173 INFO L226 Difference]: Without dead ends: 151 [2018-07-23 13:54:15,174 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=11026, Invalid=11026, Unknown=0, NotChecked=0, Total=22052 [2018-07-23 13:54:15,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2018-07-23 13:54:15,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2018-07-23 13:54:15,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2018-07-23 13:54:15,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 151 transitions. [2018-07-23 13:54:15,181 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 151 transitions. Word has length 149 [2018-07-23 13:54:15,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:15,181 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 151 transitions. [2018-07-23 13:54:15,181 INFO L472 AbstractCegarLoop]: Interpolant automaton has 149 states. [2018-07-23 13:54:15,181 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 151 transitions. [2018-07-23 13:54:15,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2018-07-23 13:54:15,182 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:15,182 INFO L357 BasicCegarLoop]: trace histogram [147, 1, 1, 1] [2018-07-23 13:54:15,182 INFO L414 AbstractCegarLoop]: === Iteration 148 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:15,182 INFO L82 PathProgramCache]: Analyzing trace with hash 919774599, now seen corresponding path program 147 times [2018-07-23 13:54:15,182 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:15,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:17,685 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 13:54:17,686 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:17,686 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [149] total 149 [2018-07-23 13:54:17,686 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:17,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:17,687 INFO L185 omatonBuilderFactory]: Interpolants [57645#true, 57646#false, 57647#(and (not (= main_x main_y)) (<= main_a_x 0)), 57648#(and (not (= main_x main_y)) (<= main_a_x 1)), 57649#(and (not (= main_x main_y)) (<= main_a_x 2)), 57650#(and (not (= main_x main_y)) (<= main_a_x 3)), 57651#(and (<= main_a_x 4) (not (= main_x main_y))), 57652#(and (<= main_a_x 5) (not (= main_x main_y))), 57653#(and (not (= main_x main_y)) (<= main_a_x 6)), 57654#(and (<= main_a_x 7) (not (= main_x main_y))), 57655#(and (not (= main_x main_y)) (<= main_a_x 8)), 57656#(and (not (= main_x main_y)) (<= main_a_x 9)), 57657#(and (<= main_a_x 10) (not (= main_x main_y))), 57658#(and (not (= main_x main_y)) (<= main_a_x 11)), 57659#(and (not (= main_x main_y)) (<= main_a_x 12)), 57660#(and (<= main_a_x 13) (not (= main_x main_y))), 57661#(and (not (= main_x main_y)) (<= main_a_x 14)), 57662#(and (<= main_a_x 15) (not (= main_x main_y))), 57663#(and (not (= main_x main_y)) (<= main_a_x 16)), 57664#(and (not (= main_x main_y)) (<= main_a_x 17)), 57665#(and (<= main_a_x 18) (not (= main_x main_y))), 57666#(and (<= main_a_x 19) (not (= main_x main_y))), 57667#(and (not (= main_x main_y)) (<= main_a_x 20)), 57668#(and (not (= main_x main_y)) (<= main_a_x 21)), 57669#(and (not (= main_x main_y)) (<= main_a_x 22)), 57670#(and (<= main_a_x 23) (not (= main_x main_y))), 57671#(and (not (= main_x main_y)) (<= main_a_x 24)), 57672#(and (<= main_a_x 25) (not (= main_x main_y))), 57673#(and (not (= main_x main_y)) (<= main_a_x 26)), 57674#(and (not (= main_x main_y)) (<= main_a_x 27)), 57675#(and (not (= main_x main_y)) (<= main_a_x 28)), 57676#(and (not (= main_x main_y)) (<= main_a_x 29)), 57677#(and (<= main_a_x 30) (not (= main_x main_y))), 57678#(and (<= main_a_x 31) (not (= main_x main_y))), 57679#(and (not (= main_x main_y)) (<= main_a_x 32)), 57680#(and (not (= main_x main_y)) (<= main_a_x 33)), 57681#(and (not (= main_x main_y)) (<= main_a_x 34)), 57682#(and (<= main_a_x 35) (not (= main_x main_y))), 57683#(and (not (= main_x main_y)) (<= main_a_x 36)), 57684#(and (<= main_a_x 37) (not (= main_x main_y))), 57685#(and (not (= main_x main_y)) (<= main_a_x 38)), 57686#(and (<= main_a_x 39) (not (= main_x main_y))), 57687#(and (<= main_a_x 40) (not (= main_x main_y))), 57688#(and (not (= main_x main_y)) (<= main_a_x 41)), 57689#(and (not (= main_x main_y)) (<= main_a_x 42)), 57690#(and (<= main_a_x 43) (not (= main_x main_y))), 57691#(and (<= main_a_x 44) (not (= main_x main_y))), 57692#(and (<= main_a_x 45) (not (= main_x main_y))), 57693#(and (<= main_a_x 46) (not (= main_x main_y))), 57694#(and (<= main_a_x 47) (not (= main_x main_y))), 57695#(and (<= main_a_x 48) (not (= main_x main_y))), 57696#(and (not (= main_x main_y)) (<= main_a_x 49)), 57697#(and (not (= main_x main_y)) (<= main_a_x 50)), 57698#(and (<= main_a_x 51) (not (= main_x main_y))), 57699#(and (not (= main_x main_y)) (<= main_a_x 52)), 57700#(and (<= main_a_x 53) (not (= main_x main_y))), 57701#(and (<= main_a_x 54) (not (= main_x main_y))), 57702#(and (not (= main_x main_y)) (<= main_a_x 55)), 57703#(and (not (= main_x main_y)) (<= main_a_x 56)), 57704#(and (not (= main_x main_y)) (<= main_a_x 57)), 57705#(and (not (= main_x main_y)) (<= main_a_x 58)), 57706#(and (not (= main_x main_y)) (<= main_a_x 59)), 57707#(and (<= main_a_x 60) (not (= main_x main_y))), 57708#(and (not (= main_x main_y)) (<= main_a_x 61)), 57709#(and (not (= main_x main_y)) (<= main_a_x 62)), 57710#(and (<= main_a_x 63) (not (= main_x main_y))), 57711#(and (<= main_a_x 64) (not (= main_x main_y))), 57712#(and (<= main_a_x 65) (not (= main_x main_y))), 57713#(and (<= main_a_x 66) (not (= main_x main_y))), 57714#(and (<= main_a_x 67) (not (= main_x main_y))), 57715#(and (not (= main_x main_y)) (<= main_a_x 68)), 57716#(and (<= main_a_x 69) (not (= main_x main_y))), 57717#(and (<= main_a_x 70) (not (= main_x main_y))), 57718#(and (<= main_a_x 71) (not (= main_x main_y))), 57719#(and (not (= main_x main_y)) (<= main_a_x 72)), 57720#(and (not (= main_x main_y)) (<= main_a_x 73)), 57721#(and (<= main_a_x 74) (not (= main_x main_y))), 57722#(and (<= main_a_x 75) (not (= main_x main_y))), 57723#(and (not (= main_x main_y)) (<= main_a_x 76)), 57724#(and (not (= main_x main_y)) (<= main_a_x 77)), 57725#(and (<= main_a_x 78) (not (= main_x main_y))), 57726#(and (<= main_a_x 79) (not (= main_x main_y))), 57727#(and (not (= main_x main_y)) (<= main_a_x 80)), 57728#(and (not (= main_x main_y)) (<= main_a_x 81)), 57729#(and (not (= main_x main_y)) (<= main_a_x 82)), 57730#(and (not (= main_x main_y)) (<= main_a_x 83)), 57731#(and (<= main_a_x 84) (not (= main_x main_y))), 57732#(and (not (= main_x main_y)) (<= main_a_x 85)), 57733#(and (not (= main_x main_y)) (<= main_a_x 86)), 57734#(and (<= main_a_x 87) (not (= main_x main_y))), 57735#(and (not (= main_x main_y)) (<= main_a_x 88)), 57736#(and (<= main_a_x 89) (not (= main_x main_y))), 57737#(and (not (= main_x main_y)) (<= main_a_x 90)), 57738#(and (<= main_a_x 91) (not (= main_x main_y))), 57739#(and (not (= main_x main_y)) (<= main_a_x 92)), 57740#(and (not (= main_x main_y)) (<= main_a_x 93)), 57741#(and (<= main_a_x 94) (not (= main_x main_y))), 57742#(and (<= main_a_x 95) (not (= main_x main_y))), 57743#(and (not (= main_x main_y)) (<= main_a_x 96)), 57744#(and (<= main_a_x 97) (not (= main_x main_y))), 57745#(and (not (= main_x main_y)) (<= main_a_x 98)), 57746#(and (<= main_a_x 99) (not (= main_x main_y))), 57747#(and (<= main_a_x 100) (not (= main_x main_y))), 57748#(and (not (= main_x main_y)) (<= main_a_x 101)), 57749#(and (not (= main_x main_y)) (<= main_a_x 102)), 57750#(and (not (= main_x main_y)) (<= main_a_x 103)), 57751#(and (<= main_a_x 104) (not (= main_x main_y))), 57752#(and (<= main_a_x 105) (not (= main_x main_y))), 57753#(and (not (= main_x main_y)) (<= main_a_x 106)), 57754#(and (not (= main_x main_y)) (<= main_a_x 107)), 57755#(and (not (= main_x main_y)) (<= main_a_x 108)), 57756#(and (not (= main_x main_y)) (<= main_a_x 109)), 57757#(and (<= main_a_x 110) (not (= main_x main_y))), 57758#(and (not (= main_x main_y)) (<= main_a_x 111)), 57759#(and (<= main_a_x 112) (not (= main_x main_y))), 57760#(and (<= main_a_x 113) (not (= main_x main_y))), 57761#(and (not (= main_x main_y)) (<= main_a_x 114)), 57762#(and (not (= main_x main_y)) (<= main_a_x 115)), 57763#(and (not (= main_x main_y)) (<= main_a_x 116)), 57764#(and (<= main_a_x 117) (not (= main_x main_y))), 57765#(and (not (= main_x main_y)) (<= main_a_x 118)), 57766#(and (not (= main_x main_y)) (<= main_a_x 119)), 57767#(and (not (= main_x main_y)) (<= main_a_x 120)), 57768#(and (not (= main_x main_y)) (<= main_a_x 121)), 57769#(and (not (= main_x main_y)) (<= main_a_x 122)), 57770#(and (<= main_a_x 123) (not (= main_x main_y))), 57771#(and (not (= main_x main_y)) (<= main_a_x 124)), 57772#(and (not (= main_x main_y)) (<= main_a_x 125)), 57773#(and (not (= main_x main_y)) (<= main_a_x 126)), 57774#(and (not (= main_x main_y)) (<= main_a_x 127)), 57775#(and (<= main_a_x 128) (not (= main_x main_y))), 57776#(and (<= main_a_x 129) (not (= main_x main_y))), 57777#(and (not (= main_x main_y)) (<= main_a_x 130)), 57778#(and (not (= main_x main_y)) (<= main_a_x 131)), 57779#(and (not (= main_x main_y)) (<= main_a_x 132)), 57780#(and (not (= main_x main_y)) (<= main_a_x 133)), 57781#(and (not (= main_x main_y)) (<= main_a_x 134)), 57782#(and (<= main_a_x 135) (not (= main_x main_y))), 57783#(and (<= main_a_x 136) (not (= main_x main_y))), 57784#(and (not (= main_x main_y)) (<= main_a_x 137)), 57785#(and (not (= main_x main_y)) (<= main_a_x 138)), 57786#(and (not (= main_x main_y)) (<= main_a_x 139)), 57787#(and (<= main_a_x 140) (not (= main_x main_y))), 57788#(and (<= main_a_x 141) (not (= main_x main_y))), 57789#(and (not (= main_x main_y)) (<= main_a_x 142)), 57790#(and (<= main_a_x 143) (not (= main_x main_y))), 57791#(and (<= main_a_x 144) (not (= main_x main_y))), 57792#(and (not (= main_x main_y)) (<= main_a_x 145)), 57793#(and (<= main_a_x 146) (not (= main_x main_y))), 57794#(<= main_a_x 147)] [2018-07-23 13:54:17,687 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 13:54:17,688 INFO L450 AbstractCegarLoop]: Interpolant automaton has 150 states [2018-07-23 13:54:17,689 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 150 interpolants. [2018-07-23 13:54:17,690 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11175, Invalid=11175, Unknown=0, NotChecked=0, Total=22350 [2018-07-23 13:54:17,690 INFO L87 Difference]: Start difference. First operand 151 states and 151 transitions. Second operand 150 states. [2018-07-23 13:54:18,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:18,050 INFO L93 Difference]: Finished difference Result 154 states and 154 transitions. [2018-07-23 13:54:18,050 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 150 states. [2018-07-23 13:54:18,050 INFO L78 Accepts]: Start accepts. Automaton has 150 states. Word has length 150 [2018-07-23 13:54:18,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:18,050 INFO L225 Difference]: With dead ends: 154 [2018-07-23 13:54:18,050 INFO L226 Difference]: Without dead ends: 152 [2018-07-23 13:54:18,051 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=11175, Invalid=11175, Unknown=0, NotChecked=0, Total=22350 [2018-07-23 13:54:18,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2018-07-23 13:54:18,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2018-07-23 13:54:18,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2018-07-23 13:54:18,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 152 transitions. [2018-07-23 13:54:18,056 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 152 transitions. Word has length 150 [2018-07-23 13:54:18,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:18,056 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 152 transitions. [2018-07-23 13:54:18,056 INFO L472 AbstractCegarLoop]: Interpolant automaton has 150 states. [2018-07-23 13:54:18,056 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 152 transitions. [2018-07-23 13:54:18,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-07-23 13:54:18,056 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:18,056 INFO L357 BasicCegarLoop]: trace histogram [148, 1, 1, 1] [2018-07-23 13:54:18,057 INFO L414 AbstractCegarLoop]: === Iteration 149 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:18,057 INFO L82 PathProgramCache]: Analyzing trace with hash -1551743124, now seen corresponding path program 148 times [2018-07-23 13:54:18,057 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:18,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:20,568 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 13:54:20,568 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:20,568 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [150] total 150 [2018-07-23 13:54:20,568 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:20,569 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 13:54:20,569 INFO L185 omatonBuilderFactory]: Interpolants [58407#true, 58408#false, 58409#(and (not (= main_x main_y)) (<= main_a_x 0)), 58410#(and (not (= main_x main_y)) (<= main_a_x 1)), 58411#(and (not (= main_x main_y)) (<= main_a_x 2)), 58412#(and (not (= main_x main_y)) (<= main_a_x 3)), 58413#(and (<= main_a_x 4) (not (= main_x main_y))), 58414#(and (<= main_a_x 5) (not (= main_x main_y))), 58415#(and (not (= main_x main_y)) (<= main_a_x 6)), 58416#(and (<= main_a_x 7) (not (= main_x main_y))), 58417#(and (not (= main_x main_y)) (<= main_a_x 8)), 58418#(and (not (= main_x main_y)) (<= main_a_x 9)), 58419#(and (<= main_a_x 10) (not (= main_x main_y))), 58420#(and (not (= main_x main_y)) (<= main_a_x 11)), 58421#(and (not (= main_x main_y)) (<= main_a_x 12)), 58422#(and (<= main_a_x 13) (not (= main_x main_y))), 58423#(and (not (= main_x main_y)) (<= main_a_x 14)), 58424#(and (<= main_a_x 15) (not (= main_x main_y))), 58425#(and (not (= main_x main_y)) (<= main_a_x 16)), 58426#(and (not (= main_x main_y)) (<= main_a_x 17)), 58427#(and (<= main_a_x 18) (not (= main_x main_y))), 58428#(and (<= main_a_x 19) (not (= main_x main_y))), 58429#(and (not (= main_x main_y)) (<= main_a_x 20)), 58430#(and (not (= main_x main_y)) (<= main_a_x 21)), 58431#(and (not (= main_x main_y)) (<= main_a_x 22)), 58432#(and (<= main_a_x 23) (not (= main_x main_y))), 58433#(and (not (= main_x main_y)) (<= main_a_x 24)), 58434#(and (<= main_a_x 25) (not (= main_x main_y))), 58435#(and (not (= main_x main_y)) (<= main_a_x 26)), 58436#(and (not (= main_x main_y)) (<= main_a_x 27)), 58437#(and (not (= main_x main_y)) (<= main_a_x 28)), 58438#(and (not (= main_x main_y)) (<= main_a_x 29)), 58439#(and (<= main_a_x 30) (not (= main_x main_y))), 58440#(and (<= main_a_x 31) (not (= main_x main_y))), 58441#(and (not (= main_x main_y)) (<= main_a_x 32)), 58442#(and (not (= main_x main_y)) (<= main_a_x 33)), 58443#(and (not (= main_x main_y)) (<= main_a_x 34)), 58444#(and (<= main_a_x 35) (not (= main_x main_y))), 58445#(and (not (= main_x main_y)) (<= main_a_x 36)), 58446#(and (<= main_a_x 37) (not (= main_x main_y))), 58447#(and (not (= main_x main_y)) (<= main_a_x 38)), 58448#(and (<= main_a_x 39) (not (= main_x main_y))), 58449#(and (<= main_a_x 40) (not (= main_x main_y))), 58450#(and (not (= main_x main_y)) (<= main_a_x 41)), 58451#(and (not (= main_x main_y)) (<= main_a_x 42)), 58452#(and (<= main_a_x 43) (not (= main_x main_y))), 58453#(and (<= main_a_x 44) (not (= main_x main_y))), 58454#(and (<= main_a_x 45) (not (= main_x main_y))), 58455#(and (<= main_a_x 46) (not (= main_x main_y))), 58456#(and (<= main_a_x 47) (not (= main_x main_y))), 58457#(and (<= main_a_x 48) (not (= main_x main_y))), 58458#(and (not (= main_x main_y)) (<= main_a_x 49)), 58459#(and (not (= main_x main_y)) (<= main_a_x 50)), 58460#(and (<= main_a_x 51) (not (= main_x main_y))), 58461#(and (not (= main_x main_y)) (<= main_a_x 52)), 58462#(and (<= main_a_x 53) (not (= main_x main_y))), 58463#(and (<= main_a_x 54) (not (= main_x main_y))), 58464#(and (not (= main_x main_y)) (<= main_a_x 55)), 58465#(and (not (= main_x main_y)) (<= main_a_x 56)), 58466#(and (not (= main_x main_y)) (<= main_a_x 57)), 58467#(and (not (= main_x main_y)) (<= main_a_x 58)), 58468#(and (not (= main_x main_y)) (<= main_a_x 59)), 58469#(and (<= main_a_x 60) (not (= main_x main_y))), 58470#(and (not (= main_x main_y)) (<= main_a_x 61)), 58471#(and (not (= main_x main_y)) (<= main_a_x 62)), 58472#(and (<= main_a_x 63) (not (= main_x main_y))), 58473#(and (<= main_a_x 64) (not (= main_x main_y))), 58474#(and (<= main_a_x 65) (not (= main_x main_y))), 58475#(and (<= main_a_x 66) (not (= main_x main_y))), 58476#(and (<= main_a_x 67) (not (= main_x main_y))), 58477#(and (not (= main_x main_y)) (<= main_a_x 68)), 58478#(and (<= main_a_x 69) (not (= main_x main_y))), 58479#(and (<= main_a_x 70) (not (= main_x main_y))), 58480#(and (<= main_a_x 71) (not (= main_x main_y))), 58481#(and (not (= main_x main_y)) (<= main_a_x 72)), 58482#(and (not (= main_x main_y)) (<= main_a_x 73)), 58483#(and (<= main_a_x 74) (not (= main_x main_y))), 58484#(and (<= main_a_x 75) (not (= main_x main_y))), 58485#(and (not (= main_x main_y)) (<= main_a_x 76)), 58486#(and (not (= main_x main_y)) (<= main_a_x 77)), 58487#(and (<= main_a_x 78) (not (= main_x main_y))), 58488#(and (<= main_a_x 79) (not (= main_x main_y))), 58489#(and (not (= main_x main_y)) (<= main_a_x 80)), 58490#(and (not (= main_x main_y)) (<= main_a_x 81)), 58491#(and (not (= main_x main_y)) (<= main_a_x 82)), 58492#(and (not (= main_x main_y)) (<= main_a_x 83)), 58493#(and (<= main_a_x 84) (not (= main_x main_y))), 58494#(and (not (= main_x main_y)) (<= main_a_x 85)), 58495#(and (not (= main_x main_y)) (<= main_a_x 86)), 58496#(and (<= main_a_x 87) (not (= main_x main_y))), 58497#(and (not (= main_x main_y)) (<= main_a_x 88)), 58498#(and (<= main_a_x 89) (not (= main_x main_y))), 58499#(and (not (= main_x main_y)) (<= main_a_x 90)), 58500#(and (<= main_a_x 91) (not (= main_x main_y))), 58501#(and (not (= main_x main_y)) (<= main_a_x 92)), 58502#(and (not (= main_x main_y)) (<= main_a_x 93)), 58503#(and (<= main_a_x 94) (not (= main_x main_y))), 58504#(and (<= main_a_x 95) (not (= main_x main_y))), 58505#(and (not (= main_x main_y)) (<= main_a_x 96)), 58506#(and (<= main_a_x 97) (not (= main_x main_y))), 58507#(and (not (= main_x main_y)) (<= main_a_x 98)), 58508#(and (<= main_a_x 99) (not (= main_x main_y))), 58509#(and (<= main_a_x 100) (not (= main_x main_y))), 58510#(and (not (= main_x main_y)) (<= main_a_x 101)), 58511#(and (not (= main_x main_y)) (<= main_a_x 102)), 58512#(and (not (= main_x main_y)) (<= main_a_x 103)), 58513#(and (<= main_a_x 104) (not (= main_x main_y))), 58514#(and (<= main_a_x 105) (not (= main_x main_y))), 58515#(and (not (= main_x main_y)) (<= main_a_x 106)), 58516#(and (not (= main_x main_y)) (<= main_a_x 107)), 58517#(and (not (= main_x main_y)) (<= main_a_x 108)), 58518#(and (not (= main_x main_y)) (<= main_a_x 109)), 58519#(and (<= main_a_x 110) (not (= main_x main_y))), 58520#(and (not (= main_x main_y)) (<= main_a_x 111)), 58521#(and (<= main_a_x 112) (not (= main_x main_y))), 58522#(and (<= main_a_x 113) (not (= main_x main_y))), 58523#(and (not (= main_x main_y)) (<= main_a_x 114)), 58524#(and (not (= main_x main_y)) (<= main_a_x 115)), 58525#(and (not (= main_x main_y)) (<= main_a_x 116)), 58526#(and (<= main_a_x 117) (not (= main_x main_y))), 58527#(and (not (= main_x main_y)) (<= main_a_x 118)), 58528#(and (not (= main_x main_y)) (<= main_a_x 119)), 58529#(and (not (= main_x main_y)) (<= main_a_x 120)), 58530#(and (not (= main_x main_y)) (<= main_a_x 121)), 58531#(and (not (= main_x main_y)) (<= main_a_x 122)), 58532#(and (<= main_a_x 123) (not (= main_x main_y))), 58533#(and (not (= main_x main_y)) (<= main_a_x 124)), 58534#(and (not (= main_x main_y)) (<= main_a_x 125)), 58535#(and (not (= main_x main_y)) (<= main_a_x 126)), 58536#(and (not (= main_x main_y)) (<= main_a_x 127)), 58537#(and (<= main_a_x 128) (not (= main_x main_y))), 58538#(and (<= main_a_x 129) (not (= main_x main_y))), 58539#(and (not (= main_x main_y)) (<= main_a_x 130)), 58540#(and (not (= main_x main_y)) (<= main_a_x 131)), 58541#(and (not (= main_x main_y)) (<= main_a_x 132)), 58542#(and (not (= main_x main_y)) (<= main_a_x 133)), 58543#(and (not (= main_x main_y)) (<= main_a_x 134)), 58544#(and (<= main_a_x 135) (not (= main_x main_y))), 58545#(and (<= main_a_x 136) (not (= main_x main_y))), 58546#(and (not (= main_x main_y)) (<= main_a_x 137)), 58547#(and (not (= main_x main_y)) (<= main_a_x 138)), 58548#(and (not (= main_x main_y)) (<= main_a_x 139)), 58549#(and (<= main_a_x 140) (not (= main_x main_y))), 58550#(and (<= main_a_x 141) (not (= main_x main_y))), 58551#(and (not (= main_x main_y)) (<= main_a_x 142)), 58552#(and (<= main_a_x 143) (not (= main_x main_y))), 58553#(and (<= main_a_x 144) (not (= main_x main_y))), 58554#(and (not (= main_x main_y)) (<= main_a_x 145)), 58555#(and (<= main_a_x 146) (not (= main_x main_y))), 58556#(and (not (= main_x main_y)) (<= main_a_x 147)), 58557#(<= main_a_x 148)] [2018-07-23 13:54:20,570 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 13:54:20,570 INFO L450 AbstractCegarLoop]: Interpolant automaton has 151 states [2018-07-23 13:54:20,571 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 151 interpolants. [2018-07-23 13:54:20,572 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11325, Invalid=11325, Unknown=0, NotChecked=0, Total=22650 [2018-07-23 13:54:20,572 INFO L87 Difference]: Start difference. First operand 152 states and 152 transitions. Second operand 151 states. [2018-07-23 13:54:20,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:20,941 INFO L93 Difference]: Finished difference Result 155 states and 155 transitions. [2018-07-23 13:54:20,941 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 151 states. [2018-07-23 13:54:20,941 INFO L78 Accepts]: Start accepts. Automaton has 151 states. Word has length 151 [2018-07-23 13:54:20,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:20,941 INFO L225 Difference]: With dead ends: 155 [2018-07-23 13:54:20,941 INFO L226 Difference]: Without dead ends: 153 [2018-07-23 13:54:20,942 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=11325, Invalid=11325, Unknown=0, NotChecked=0, Total=22650 [2018-07-23 13:54:20,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2018-07-23 13:54:20,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2018-07-23 13:54:20,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2018-07-23 13:54:20,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 153 transitions. [2018-07-23 13:54:20,946 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 153 transitions. Word has length 151 [2018-07-23 13:54:20,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:20,947 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 153 transitions. [2018-07-23 13:54:20,947 INFO L472 AbstractCegarLoop]: Interpolant automaton has 151 states. [2018-07-23 13:54:20,947 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 153 transitions. [2018-07-23 13:54:20,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-07-23 13:54:20,947 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:20,947 INFO L357 BasicCegarLoop]: trace histogram [149, 1, 1, 1] [2018-07-23 13:54:20,947 INFO L414 AbstractCegarLoop]: === Iteration 150 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:20,947 INFO L82 PathProgramCache]: Analyzing trace with hash -859381209, now seen corresponding path program 149 times [2018-07-23 13:54:20,948 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:21,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:23,469 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 13:54:23,469 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:23,470 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [151] total 151 [2018-07-23 13:54:23,470 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:23,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:23,470 INFO L185 omatonBuilderFactory]: Interpolants [59174#true, 59175#false, 59176#(and (not (= main_x main_y)) (<= main_a_x 0)), 59177#(and (not (= main_x main_y)) (<= main_a_x 1)), 59178#(and (not (= main_x main_y)) (<= main_a_x 2)), 59179#(and (not (= main_x main_y)) (<= main_a_x 3)), 59180#(and (<= main_a_x 4) (not (= main_x main_y))), 59181#(and (<= main_a_x 5) (not (= main_x main_y))), 59182#(and (not (= main_x main_y)) (<= main_a_x 6)), 59183#(and (<= main_a_x 7) (not (= main_x main_y))), 59184#(and (not (= main_x main_y)) (<= main_a_x 8)), 59185#(and (not (= main_x main_y)) (<= main_a_x 9)), 59186#(and (<= main_a_x 10) (not (= main_x main_y))), 59187#(and (not (= main_x main_y)) (<= main_a_x 11)), 59188#(and (not (= main_x main_y)) (<= main_a_x 12)), 59189#(and (<= main_a_x 13) (not (= main_x main_y))), 59190#(and (not (= main_x main_y)) (<= main_a_x 14)), 59191#(and (<= main_a_x 15) (not (= main_x main_y))), 59192#(and (not (= main_x main_y)) (<= main_a_x 16)), 59193#(and (not (= main_x main_y)) (<= main_a_x 17)), 59194#(and (<= main_a_x 18) (not (= main_x main_y))), 59195#(and (<= main_a_x 19) (not (= main_x main_y))), 59196#(and (not (= main_x main_y)) (<= main_a_x 20)), 59197#(and (not (= main_x main_y)) (<= main_a_x 21)), 59198#(and (not (= main_x main_y)) (<= main_a_x 22)), 59199#(and (<= main_a_x 23) (not (= main_x main_y))), 59200#(and (not (= main_x main_y)) (<= main_a_x 24)), 59201#(and (<= main_a_x 25) (not (= main_x main_y))), 59202#(and (not (= main_x main_y)) (<= main_a_x 26)), 59203#(and (not (= main_x main_y)) (<= main_a_x 27)), 59204#(and (not (= main_x main_y)) (<= main_a_x 28)), 59205#(and (not (= main_x main_y)) (<= main_a_x 29)), 59206#(and (<= main_a_x 30) (not (= main_x main_y))), 59207#(and (<= main_a_x 31) (not (= main_x main_y))), 59208#(and (not (= main_x main_y)) (<= main_a_x 32)), 59209#(and (not (= main_x main_y)) (<= main_a_x 33)), 59210#(and (not (= main_x main_y)) (<= main_a_x 34)), 59211#(and (<= main_a_x 35) (not (= main_x main_y))), 59212#(and (not (= main_x main_y)) (<= main_a_x 36)), 59213#(and (<= main_a_x 37) (not (= main_x main_y))), 59214#(and (not (= main_x main_y)) (<= main_a_x 38)), 59215#(and (<= main_a_x 39) (not (= main_x main_y))), 59216#(and (<= main_a_x 40) (not (= main_x main_y))), 59217#(and (not (= main_x main_y)) (<= main_a_x 41)), 59218#(and (not (= main_x main_y)) (<= main_a_x 42)), 59219#(and (<= main_a_x 43) (not (= main_x main_y))), 59220#(and (<= main_a_x 44) (not (= main_x main_y))), 59221#(and (<= main_a_x 45) (not (= main_x main_y))), 59222#(and (<= main_a_x 46) (not (= main_x main_y))), 59223#(and (<= main_a_x 47) (not (= main_x main_y))), 59224#(and (<= main_a_x 48) (not (= main_x main_y))), 59225#(and (not (= main_x main_y)) (<= main_a_x 49)), 59226#(and (not (= main_x main_y)) (<= main_a_x 50)), 59227#(and (<= main_a_x 51) (not (= main_x main_y))), 59228#(and (not (= main_x main_y)) (<= main_a_x 52)), 59229#(and (<= main_a_x 53) (not (= main_x main_y))), 59230#(and (<= main_a_x 54) (not (= main_x main_y))), 59231#(and (not (= main_x main_y)) (<= main_a_x 55)), 59232#(and (not (= main_x main_y)) (<= main_a_x 56)), 59233#(and (not (= main_x main_y)) (<= main_a_x 57)), 59234#(and (not (= main_x main_y)) (<= main_a_x 58)), 59235#(and (not (= main_x main_y)) (<= main_a_x 59)), 59236#(and (<= main_a_x 60) (not (= main_x main_y))), 59237#(and (not (= main_x main_y)) (<= main_a_x 61)), 59238#(and (not (= main_x main_y)) (<= main_a_x 62)), 59239#(and (<= main_a_x 63) (not (= main_x main_y))), 59240#(and (<= main_a_x 64) (not (= main_x main_y))), 59241#(and (<= main_a_x 65) (not (= main_x main_y))), 59242#(and (<= main_a_x 66) (not (= main_x main_y))), 59243#(and (<= main_a_x 67) (not (= main_x main_y))), 59244#(and (not (= main_x main_y)) (<= main_a_x 68)), 59245#(and (<= main_a_x 69) (not (= main_x main_y))), 59246#(and (<= main_a_x 70) (not (= main_x main_y))), 59247#(and (<= main_a_x 71) (not (= main_x main_y))), 59248#(and (not (= main_x main_y)) (<= main_a_x 72)), 59249#(and (not (= main_x main_y)) (<= main_a_x 73)), 59250#(and (<= main_a_x 74) (not (= main_x main_y))), 59251#(and (<= main_a_x 75) (not (= main_x main_y))), 59252#(and (not (= main_x main_y)) (<= main_a_x 76)), 59253#(and (not (= main_x main_y)) (<= main_a_x 77)), 59254#(and (<= main_a_x 78) (not (= main_x main_y))), 59255#(and (<= main_a_x 79) (not (= main_x main_y))), 59256#(and (not (= main_x main_y)) (<= main_a_x 80)), 59257#(and (not (= main_x main_y)) (<= main_a_x 81)), 59258#(and (not (= main_x main_y)) (<= main_a_x 82)), 59259#(and (not (= main_x main_y)) (<= main_a_x 83)), 59260#(and (<= main_a_x 84) (not (= main_x main_y))), 59261#(and (not (= main_x main_y)) (<= main_a_x 85)), 59262#(and (not (= main_x main_y)) (<= main_a_x 86)), 59263#(and (<= main_a_x 87) (not (= main_x main_y))), 59264#(and (not (= main_x main_y)) (<= main_a_x 88)), 59265#(and (<= main_a_x 89) (not (= main_x main_y))), 59266#(and (not (= main_x main_y)) (<= main_a_x 90)), 59267#(and (<= main_a_x 91) (not (= main_x main_y))), 59268#(and (not (= main_x main_y)) (<= main_a_x 92)), 59269#(and (not (= main_x main_y)) (<= main_a_x 93)), 59270#(and (<= main_a_x 94) (not (= main_x main_y))), 59271#(and (<= main_a_x 95) (not (= main_x main_y))), 59272#(and (not (= main_x main_y)) (<= main_a_x 96)), 59273#(and (<= main_a_x 97) (not (= main_x main_y))), 59274#(and (not (= main_x main_y)) (<= main_a_x 98)), 59275#(and (<= main_a_x 99) (not (= main_x main_y))), 59276#(and (<= main_a_x 100) (not (= main_x main_y))), 59277#(and (not (= main_x main_y)) (<= main_a_x 101)), 59278#(and (not (= main_x main_y)) (<= main_a_x 102)), 59279#(and (not (= main_x main_y)) (<= main_a_x 103)), 59280#(and (<= main_a_x 104) (not (= main_x main_y))), 59281#(and (<= main_a_x 105) (not (= main_x main_y))), 59282#(and (not (= main_x main_y)) (<= main_a_x 106)), 59283#(and (not (= main_x main_y)) (<= main_a_x 107)), 59284#(and (not (= main_x main_y)) (<= main_a_x 108)), 59285#(and (not (= main_x main_y)) (<= main_a_x 109)), 59286#(and (<= main_a_x 110) (not (= main_x main_y))), 59287#(and (not (= main_x main_y)) (<= main_a_x 111)), 59288#(and (<= main_a_x 112) (not (= main_x main_y))), 59289#(and (<= main_a_x 113) (not (= main_x main_y))), 59290#(and (not (= main_x main_y)) (<= main_a_x 114)), 59291#(and (not (= main_x main_y)) (<= main_a_x 115)), 59292#(and (not (= main_x main_y)) (<= main_a_x 116)), 59293#(and (<= main_a_x 117) (not (= main_x main_y))), 59294#(and (not (= main_x main_y)) (<= main_a_x 118)), 59295#(and (not (= main_x main_y)) (<= main_a_x 119)), 59296#(and (not (= main_x main_y)) (<= main_a_x 120)), 59297#(and (not (= main_x main_y)) (<= main_a_x 121)), 59298#(and (not (= main_x main_y)) (<= main_a_x 122)), 59299#(and (<= main_a_x 123) (not (= main_x main_y))), 59300#(and (not (= main_x main_y)) (<= main_a_x 124)), 59301#(and (not (= main_x main_y)) (<= main_a_x 125)), 59302#(and (not (= main_x main_y)) (<= main_a_x 126)), 59303#(and (not (= main_x main_y)) (<= main_a_x 127)), 59304#(and (<= main_a_x 128) (not (= main_x main_y))), 59305#(and (<= main_a_x 129) (not (= main_x main_y))), 59306#(and (not (= main_x main_y)) (<= main_a_x 130)), 59307#(and (not (= main_x main_y)) (<= main_a_x 131)), 59308#(and (not (= main_x main_y)) (<= main_a_x 132)), 59309#(and (not (= main_x main_y)) (<= main_a_x 133)), 59310#(and (not (= main_x main_y)) (<= main_a_x 134)), 59311#(and (<= main_a_x 135) (not (= main_x main_y))), 59312#(and (<= main_a_x 136) (not (= main_x main_y))), 59313#(and (not (= main_x main_y)) (<= main_a_x 137)), 59314#(and (not (= main_x main_y)) (<= main_a_x 138)), 59315#(and (not (= main_x main_y)) (<= main_a_x 139)), 59316#(and (<= main_a_x 140) (not (= main_x main_y))), 59317#(and (<= main_a_x 141) (not (= main_x main_y))), 59318#(and (not (= main_x main_y)) (<= main_a_x 142)), 59319#(and (<= main_a_x 143) (not (= main_x main_y))), 59320#(and (<= main_a_x 144) (not (= main_x main_y))), 59321#(and (not (= main_x main_y)) (<= main_a_x 145)), 59322#(and (<= main_a_x 146) (not (= main_x main_y))), 59323#(and (not (= main_x main_y)) (<= main_a_x 147)), 59324#(and (<= main_a_x 148) (not (= main_x main_y))), 59325#(<= main_a_x 149)] [2018-07-23 13:54:23,471 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 13:54:23,472 INFO L450 AbstractCegarLoop]: Interpolant automaton has 152 states [2018-07-23 13:54:23,474 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 152 interpolants. [2018-07-23 13:54:23,475 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11476, Invalid=11476, Unknown=0, NotChecked=0, Total=22952 [2018-07-23 13:54:23,475 INFO L87 Difference]: Start difference. First operand 153 states and 153 transitions. Second operand 152 states. [2018-07-23 13:54:23,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:23,890 INFO L93 Difference]: Finished difference Result 156 states and 156 transitions. [2018-07-23 13:54:23,890 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 152 states. [2018-07-23 13:54:23,890 INFO L78 Accepts]: Start accepts. Automaton has 152 states. Word has length 152 [2018-07-23 13:54:23,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:23,891 INFO L225 Difference]: With dead ends: 156 [2018-07-23 13:54:23,891 INFO L226 Difference]: Without dead ends: 154 [2018-07-23 13:54:23,892 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=11476, Invalid=11476, Unknown=0, NotChecked=0, Total=22952 [2018-07-23 13:54:23,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2018-07-23 13:54:23,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2018-07-23 13:54:23,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2018-07-23 13:54:23,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 154 transitions. [2018-07-23 13:54:23,896 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 154 transitions. Word has length 152 [2018-07-23 13:54:23,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:23,896 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 154 transitions. [2018-07-23 13:54:23,896 INFO L472 AbstractCegarLoop]: Interpolant automaton has 152 states. [2018-07-23 13:54:23,897 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 154 transitions. [2018-07-23 13:54:23,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2018-07-23 13:54:23,897 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:23,897 INFO L357 BasicCegarLoop]: trace histogram [150, 1, 1, 1] [2018-07-23 13:54:23,897 INFO L414 AbstractCegarLoop]: === Iteration 151 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:23,897 INFO L82 PathProgramCache]: Analyzing trace with hash -870998324, now seen corresponding path program 150 times [2018-07-23 13:54:23,897 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:24,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:26,254 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 13:54:26,255 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:26,255 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [152] total 152 [2018-07-23 13:54:26,255 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:26,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:26,256 INFO L185 omatonBuilderFactory]: Interpolants [59946#true, 59947#false, 59948#(and (not (= main_x main_y)) (<= main_a_x 0)), 59949#(and (not (= main_x main_y)) (<= main_a_x 1)), 59950#(and (not (= main_x main_y)) (<= main_a_x 2)), 59951#(and (not (= main_x main_y)) (<= main_a_x 3)), 59952#(and (<= main_a_x 4) (not (= main_x main_y))), 59953#(and (<= main_a_x 5) (not (= main_x main_y))), 59954#(and (not (= main_x main_y)) (<= main_a_x 6)), 59955#(and (<= main_a_x 7) (not (= main_x main_y))), 59956#(and (not (= main_x main_y)) (<= main_a_x 8)), 59957#(and (not (= main_x main_y)) (<= main_a_x 9)), 59958#(and (<= main_a_x 10) (not (= main_x main_y))), 59959#(and (not (= main_x main_y)) (<= main_a_x 11)), 59960#(and (not (= main_x main_y)) (<= main_a_x 12)), 59961#(and (<= main_a_x 13) (not (= main_x main_y))), 59962#(and (not (= main_x main_y)) (<= main_a_x 14)), 59963#(and (<= main_a_x 15) (not (= main_x main_y))), 59964#(and (not (= main_x main_y)) (<= main_a_x 16)), 59965#(and (not (= main_x main_y)) (<= main_a_x 17)), 59966#(and (<= main_a_x 18) (not (= main_x main_y))), 59967#(and (<= main_a_x 19) (not (= main_x main_y))), 59968#(and (not (= main_x main_y)) (<= main_a_x 20)), 59969#(and (not (= main_x main_y)) (<= main_a_x 21)), 59970#(and (not (= main_x main_y)) (<= main_a_x 22)), 59971#(and (<= main_a_x 23) (not (= main_x main_y))), 59972#(and (not (= main_x main_y)) (<= main_a_x 24)), 59973#(and (<= main_a_x 25) (not (= main_x main_y))), 59974#(and (not (= main_x main_y)) (<= main_a_x 26)), 59975#(and (not (= main_x main_y)) (<= main_a_x 27)), 59976#(and (not (= main_x main_y)) (<= main_a_x 28)), 59977#(and (not (= main_x main_y)) (<= main_a_x 29)), 59978#(and (<= main_a_x 30) (not (= main_x main_y))), 59979#(and (<= main_a_x 31) (not (= main_x main_y))), 59980#(and (not (= main_x main_y)) (<= main_a_x 32)), 59981#(and (not (= main_x main_y)) (<= main_a_x 33)), 59982#(and (not (= main_x main_y)) (<= main_a_x 34)), 59983#(and (<= main_a_x 35) (not (= main_x main_y))), 59984#(and (not (= main_x main_y)) (<= main_a_x 36)), 59985#(and (<= main_a_x 37) (not (= main_x main_y))), 59986#(and (not (= main_x main_y)) (<= main_a_x 38)), 59987#(and (<= main_a_x 39) (not (= main_x main_y))), 59988#(and (<= main_a_x 40) (not (= main_x main_y))), 59989#(and (not (= main_x main_y)) (<= main_a_x 41)), 59990#(and (not (= main_x main_y)) (<= main_a_x 42)), 59991#(and (<= main_a_x 43) (not (= main_x main_y))), 59992#(and (<= main_a_x 44) (not (= main_x main_y))), 59993#(and (<= main_a_x 45) (not (= main_x main_y))), 59994#(and (<= main_a_x 46) (not (= main_x main_y))), 59995#(and (<= main_a_x 47) (not (= main_x main_y))), 59996#(and (<= main_a_x 48) (not (= main_x main_y))), 59997#(and (not (= main_x main_y)) (<= main_a_x 49)), 59998#(and (not (= main_x main_y)) (<= main_a_x 50)), 59999#(and (<= main_a_x 51) (not (= main_x main_y))), 60000#(and (not (= main_x main_y)) (<= main_a_x 52)), 60001#(and (<= main_a_x 53) (not (= main_x main_y))), 60002#(and (<= main_a_x 54) (not (= main_x main_y))), 60003#(and (not (= main_x main_y)) (<= main_a_x 55)), 60004#(and (not (= main_x main_y)) (<= main_a_x 56)), 60005#(and (not (= main_x main_y)) (<= main_a_x 57)), 60006#(and (not (= main_x main_y)) (<= main_a_x 58)), 60007#(and (not (= main_x main_y)) (<= main_a_x 59)), 60008#(and (<= main_a_x 60) (not (= main_x main_y))), 60009#(and (not (= main_x main_y)) (<= main_a_x 61)), 60010#(and (not (= main_x main_y)) (<= main_a_x 62)), 60011#(and (<= main_a_x 63) (not (= main_x main_y))), 60012#(and (<= main_a_x 64) (not (= main_x main_y))), 60013#(and (<= main_a_x 65) (not (= main_x main_y))), 60014#(and (<= main_a_x 66) (not (= main_x main_y))), 60015#(and (<= main_a_x 67) (not (= main_x main_y))), 60016#(and (not (= main_x main_y)) (<= main_a_x 68)), 60017#(and (<= main_a_x 69) (not (= main_x main_y))), 60018#(and (<= main_a_x 70) (not (= main_x main_y))), 60019#(and (<= main_a_x 71) (not (= main_x main_y))), 60020#(and (not (= main_x main_y)) (<= main_a_x 72)), 60021#(and (not (= main_x main_y)) (<= main_a_x 73)), 60022#(and (<= main_a_x 74) (not (= main_x main_y))), 60023#(and (<= main_a_x 75) (not (= main_x main_y))), 60024#(and (not (= main_x main_y)) (<= main_a_x 76)), 60025#(and (not (= main_x main_y)) (<= main_a_x 77)), 60026#(and (<= main_a_x 78) (not (= main_x main_y))), 60027#(and (<= main_a_x 79) (not (= main_x main_y))), 60028#(and (not (= main_x main_y)) (<= main_a_x 80)), 60029#(and (not (= main_x main_y)) (<= main_a_x 81)), 60030#(and (not (= main_x main_y)) (<= main_a_x 82)), 60031#(and (not (= main_x main_y)) (<= main_a_x 83)), 60032#(and (<= main_a_x 84) (not (= main_x main_y))), 60033#(and (not (= main_x main_y)) (<= main_a_x 85)), 60034#(and (not (= main_x main_y)) (<= main_a_x 86)), 60035#(and (<= main_a_x 87) (not (= main_x main_y))), 60036#(and (not (= main_x main_y)) (<= main_a_x 88)), 60037#(and (<= main_a_x 89) (not (= main_x main_y))), 60038#(and (not (= main_x main_y)) (<= main_a_x 90)), 60039#(and (<= main_a_x 91) (not (= main_x main_y))), 60040#(and (not (= main_x main_y)) (<= main_a_x 92)), 60041#(and (not (= main_x main_y)) (<= main_a_x 93)), 60042#(and (<= main_a_x 94) (not (= main_x main_y))), 60043#(and (<= main_a_x 95) (not (= main_x main_y))), 60044#(and (not (= main_x main_y)) (<= main_a_x 96)), 60045#(and (<= main_a_x 97) (not (= main_x main_y))), 60046#(and (not (= main_x main_y)) (<= main_a_x 98)), 60047#(and (<= main_a_x 99) (not (= main_x main_y))), 60048#(and (<= main_a_x 100) (not (= main_x main_y))), 60049#(and (not (= main_x main_y)) (<= main_a_x 101)), 60050#(and (not (= main_x main_y)) (<= main_a_x 102)), 60051#(and (not (= main_x main_y)) (<= main_a_x 103)), 60052#(and (<= main_a_x 104) (not (= main_x main_y))), 60053#(and (<= main_a_x 105) (not (= main_x main_y))), 60054#(and (not (= main_x main_y)) (<= main_a_x 106)), 60055#(and (not (= main_x main_y)) (<= main_a_x 107)), 60056#(and (not (= main_x main_y)) (<= main_a_x 108)), 60057#(and (not (= main_x main_y)) (<= main_a_x 109)), 60058#(and (<= main_a_x 110) (not (= main_x main_y))), 60059#(and (not (= main_x main_y)) (<= main_a_x 111)), 60060#(and (<= main_a_x 112) (not (= main_x main_y))), 60061#(and (<= main_a_x 113) (not (= main_x main_y))), 60062#(and (not (= main_x main_y)) (<= main_a_x 114)), 60063#(and (not (= main_x main_y)) (<= main_a_x 115)), 60064#(and (not (= main_x main_y)) (<= main_a_x 116)), 60065#(and (<= main_a_x 117) (not (= main_x main_y))), 60066#(and (not (= main_x main_y)) (<= main_a_x 118)), 60067#(and (not (= main_x main_y)) (<= main_a_x 119)), 60068#(and (not (= main_x main_y)) (<= main_a_x 120)), 60069#(and (not (= main_x main_y)) (<= main_a_x 121)), 60070#(and (not (= main_x main_y)) (<= main_a_x 122)), 60071#(and (<= main_a_x 123) (not (= main_x main_y))), 60072#(and (not (= main_x main_y)) (<= main_a_x 124)), 60073#(and (not (= main_x main_y)) (<= main_a_x 125)), 60074#(and (not (= main_x main_y)) (<= main_a_x 126)), 60075#(and (not (= main_x main_y)) (<= main_a_x 127)), 60076#(and (<= main_a_x 128) (not (= main_x main_y))), 60077#(and (<= main_a_x 129) (not (= main_x main_y))), 60078#(and (not (= main_x main_y)) (<= main_a_x 130)), 60079#(and (not (= main_x main_y)) (<= main_a_x 131)), 60080#(and (not (= main_x main_y)) (<= main_a_x 132)), 60081#(and (not (= main_x main_y)) (<= main_a_x 133)), 60082#(and (not (= main_x main_y)) (<= main_a_x 134)), 60083#(and (<= main_a_x 135) (not (= main_x main_y))), 60084#(and (<= main_a_x 136) (not (= main_x main_y))), 60085#(and (not (= main_x main_y)) (<= main_a_x 137)), 60086#(and (not (= main_x main_y)) (<= main_a_x 138)), 60087#(and (not (= main_x main_y)) (<= main_a_x 139)), 60088#(and (<= main_a_x 140) (not (= main_x main_y))), 60089#(and (<= main_a_x 141) (not (= main_x main_y))), 60090#(and (not (= main_x main_y)) (<= main_a_x 142)), 60091#(and (<= main_a_x 143) (not (= main_x main_y))), 60092#(and (<= main_a_x 144) (not (= main_x main_y))), 60093#(and (not (= main_x main_y)) (<= main_a_x 145)), 60094#(and (<= main_a_x 146) (not (= main_x main_y))), 60095#(and (not (= main_x main_y)) (<= main_a_x 147)), 60096#(and (<= main_a_x 148) (not (= main_x main_y))), 60097#(and (not (= main_x main_y)) (<= main_a_x 149)), 60098#(<= main_a_x 150)] [2018-07-23 13:54:26,256 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 13:54:26,257 INFO L450 AbstractCegarLoop]: Interpolant automaton has 153 states [2018-07-23 13:54:26,258 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 153 interpolants. [2018-07-23 13:54:26,259 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11628, Invalid=11628, Unknown=0, NotChecked=0, Total=23256 [2018-07-23 13:54:26,259 INFO L87 Difference]: Start difference. First operand 154 states and 154 transitions. Second operand 153 states. [2018-07-23 13:54:26,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:26,638 INFO L93 Difference]: Finished difference Result 157 states and 157 transitions. [2018-07-23 13:54:26,638 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2018-07-23 13:54:26,638 INFO L78 Accepts]: Start accepts. Automaton has 153 states. Word has length 153 [2018-07-23 13:54:26,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:26,639 INFO L225 Difference]: With dead ends: 157 [2018-07-23 13:54:26,639 INFO L226 Difference]: Without dead ends: 155 [2018-07-23 13:54:26,640 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 151 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=11628, Invalid=11628, Unknown=0, NotChecked=0, Total=23256 [2018-07-23 13:54:26,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2018-07-23 13:54:26,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2018-07-23 13:54:26,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2018-07-23 13:54:26,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 155 transitions. [2018-07-23 13:54:26,644 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 155 transitions. Word has length 153 [2018-07-23 13:54:26,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:26,644 INFO L471 AbstractCegarLoop]: Abstraction has 155 states and 155 transitions. [2018-07-23 13:54:26,644 INFO L472 AbstractCegarLoop]: Interpolant automaton has 153 states. [2018-07-23 13:54:26,644 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 155 transitions. [2018-07-23 13:54:26,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2018-07-23 13:54:26,645 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:26,645 INFO L357 BasicCegarLoop]: trace histogram [151, 1, 1, 1] [2018-07-23 13:54:26,645 INFO L414 AbstractCegarLoop]: === Iteration 152 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:26,645 INFO L82 PathProgramCache]: Analyzing trace with hash -1231128889, now seen corresponding path program 151 times [2018-07-23 13:54:26,645 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:27,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:29,268 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 13:54:29,269 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:29,269 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [153] total 153 [2018-07-23 13:54:29,269 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:29,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:29,269 INFO L185 omatonBuilderFactory]: Interpolants [60723#true, 60724#false, 60725#(and (not (= main_x main_y)) (<= main_a_x 0)), 60726#(and (not (= main_x main_y)) (<= main_a_x 1)), 60727#(and (not (= main_x main_y)) (<= main_a_x 2)), 60728#(and (not (= main_x main_y)) (<= main_a_x 3)), 60729#(and (<= main_a_x 4) (not (= main_x main_y))), 60730#(and (<= main_a_x 5) (not (= main_x main_y))), 60731#(and (not (= main_x main_y)) (<= main_a_x 6)), 60732#(and (<= main_a_x 7) (not (= main_x main_y))), 60733#(and (not (= main_x main_y)) (<= main_a_x 8)), 60734#(and (not (= main_x main_y)) (<= main_a_x 9)), 60735#(and (<= main_a_x 10) (not (= main_x main_y))), 60736#(and (not (= main_x main_y)) (<= main_a_x 11)), 60737#(and (not (= main_x main_y)) (<= main_a_x 12)), 60738#(and (<= main_a_x 13) (not (= main_x main_y))), 60739#(and (not (= main_x main_y)) (<= main_a_x 14)), 60740#(and (<= main_a_x 15) (not (= main_x main_y))), 60741#(and (not (= main_x main_y)) (<= main_a_x 16)), 60742#(and (not (= main_x main_y)) (<= main_a_x 17)), 60743#(and (<= main_a_x 18) (not (= main_x main_y))), 60744#(and (<= main_a_x 19) (not (= main_x main_y))), 60745#(and (not (= main_x main_y)) (<= main_a_x 20)), 60746#(and (not (= main_x main_y)) (<= main_a_x 21)), 60747#(and (not (= main_x main_y)) (<= main_a_x 22)), 60748#(and (<= main_a_x 23) (not (= main_x main_y))), 60749#(and (not (= main_x main_y)) (<= main_a_x 24)), 60750#(and (<= main_a_x 25) (not (= main_x main_y))), 60751#(and (not (= main_x main_y)) (<= main_a_x 26)), 60752#(and (not (= main_x main_y)) (<= main_a_x 27)), 60753#(and (not (= main_x main_y)) (<= main_a_x 28)), 60754#(and (not (= main_x main_y)) (<= main_a_x 29)), 60755#(and (<= main_a_x 30) (not (= main_x main_y))), 60756#(and (<= main_a_x 31) (not (= main_x main_y))), 60757#(and (not (= main_x main_y)) (<= main_a_x 32)), 60758#(and (not (= main_x main_y)) (<= main_a_x 33)), 60759#(and (not (= main_x main_y)) (<= main_a_x 34)), 60760#(and (<= main_a_x 35) (not (= main_x main_y))), 60761#(and (not (= main_x main_y)) (<= main_a_x 36)), 60762#(and (<= main_a_x 37) (not (= main_x main_y))), 60763#(and (not (= main_x main_y)) (<= main_a_x 38)), 60764#(and (<= main_a_x 39) (not (= main_x main_y))), 60765#(and (<= main_a_x 40) (not (= main_x main_y))), 60766#(and (not (= main_x main_y)) (<= main_a_x 41)), 60767#(and (not (= main_x main_y)) (<= main_a_x 42)), 60768#(and (<= main_a_x 43) (not (= main_x main_y))), 60769#(and (<= main_a_x 44) (not (= main_x main_y))), 60770#(and (<= main_a_x 45) (not (= main_x main_y))), 60771#(and (<= main_a_x 46) (not (= main_x main_y))), 60772#(and (<= main_a_x 47) (not (= main_x main_y))), 60773#(and (<= main_a_x 48) (not (= main_x main_y))), 60774#(and (not (= main_x main_y)) (<= main_a_x 49)), 60775#(and (not (= main_x main_y)) (<= main_a_x 50)), 60776#(and (<= main_a_x 51) (not (= main_x main_y))), 60777#(and (not (= main_x main_y)) (<= main_a_x 52)), 60778#(and (<= main_a_x 53) (not (= main_x main_y))), 60779#(and (<= main_a_x 54) (not (= main_x main_y))), 60780#(and (not (= main_x main_y)) (<= main_a_x 55)), 60781#(and (not (= main_x main_y)) (<= main_a_x 56)), 60782#(and (not (= main_x main_y)) (<= main_a_x 57)), 60783#(and (not (= main_x main_y)) (<= main_a_x 58)), 60784#(and (not (= main_x main_y)) (<= main_a_x 59)), 60785#(and (<= main_a_x 60) (not (= main_x main_y))), 60786#(and (not (= main_x main_y)) (<= main_a_x 61)), 60787#(and (not (= main_x main_y)) (<= main_a_x 62)), 60788#(and (<= main_a_x 63) (not (= main_x main_y))), 60789#(and (<= main_a_x 64) (not (= main_x main_y))), 60790#(and (<= main_a_x 65) (not (= main_x main_y))), 60791#(and (<= main_a_x 66) (not (= main_x main_y))), 60792#(and (<= main_a_x 67) (not (= main_x main_y))), 60793#(and (not (= main_x main_y)) (<= main_a_x 68)), 60794#(and (<= main_a_x 69) (not (= main_x main_y))), 60795#(and (<= main_a_x 70) (not (= main_x main_y))), 60796#(and (<= main_a_x 71) (not (= main_x main_y))), 60797#(and (not (= main_x main_y)) (<= main_a_x 72)), 60798#(and (not (= main_x main_y)) (<= main_a_x 73)), 60799#(and (<= main_a_x 74) (not (= main_x main_y))), 60800#(and (<= main_a_x 75) (not (= main_x main_y))), 60801#(and (not (= main_x main_y)) (<= main_a_x 76)), 60802#(and (not (= main_x main_y)) (<= main_a_x 77)), 60803#(and (<= main_a_x 78) (not (= main_x main_y))), 60804#(and (<= main_a_x 79) (not (= main_x main_y))), 60805#(and (not (= main_x main_y)) (<= main_a_x 80)), 60806#(and (not (= main_x main_y)) (<= main_a_x 81)), 60807#(and (not (= main_x main_y)) (<= main_a_x 82)), 60808#(and (not (= main_x main_y)) (<= main_a_x 83)), 60809#(and (<= main_a_x 84) (not (= main_x main_y))), 60810#(and (not (= main_x main_y)) (<= main_a_x 85)), 60811#(and (not (= main_x main_y)) (<= main_a_x 86)), 60812#(and (<= main_a_x 87) (not (= main_x main_y))), 60813#(and (not (= main_x main_y)) (<= main_a_x 88)), 60814#(and (<= main_a_x 89) (not (= main_x main_y))), 60815#(and (not (= main_x main_y)) (<= main_a_x 90)), 60816#(and (<= main_a_x 91) (not (= main_x main_y))), 60817#(and (not (= main_x main_y)) (<= main_a_x 92)), 60818#(and (not (= main_x main_y)) (<= main_a_x 93)), 60819#(and (<= main_a_x 94) (not (= main_x main_y))), 60820#(and (<= main_a_x 95) (not (= main_x main_y))), 60821#(and (not (= main_x main_y)) (<= main_a_x 96)), 60822#(and (<= main_a_x 97) (not (= main_x main_y))), 60823#(and (not (= main_x main_y)) (<= main_a_x 98)), 60824#(and (<= main_a_x 99) (not (= main_x main_y))), 60825#(and (<= main_a_x 100) (not (= main_x main_y))), 60826#(and (not (= main_x main_y)) (<= main_a_x 101)), 60827#(and (not (= main_x main_y)) (<= main_a_x 102)), 60828#(and (not (= main_x main_y)) (<= main_a_x 103)), 60829#(and (<= main_a_x 104) (not (= main_x main_y))), 60830#(and (<= main_a_x 105) (not (= main_x main_y))), 60831#(and (not (= main_x main_y)) (<= main_a_x 106)), 60832#(and (not (= main_x main_y)) (<= main_a_x 107)), 60833#(and (not (= main_x main_y)) (<= main_a_x 108)), 60834#(and (not (= main_x main_y)) (<= main_a_x 109)), 60835#(and (<= main_a_x 110) (not (= main_x main_y))), 60836#(and (not (= main_x main_y)) (<= main_a_x 111)), 60837#(and (<= main_a_x 112) (not (= main_x main_y))), 60838#(and (<= main_a_x 113) (not (= main_x main_y))), 60839#(and (not (= main_x main_y)) (<= main_a_x 114)), 60840#(and (not (= main_x main_y)) (<= main_a_x 115)), 60841#(and (not (= main_x main_y)) (<= main_a_x 116)), 60842#(and (<= main_a_x 117) (not (= main_x main_y))), 60843#(and (not (= main_x main_y)) (<= main_a_x 118)), 60844#(and (not (= main_x main_y)) (<= main_a_x 119)), 60845#(and (not (= main_x main_y)) (<= main_a_x 120)), 60846#(and (not (= main_x main_y)) (<= main_a_x 121)), 60847#(and (not (= main_x main_y)) (<= main_a_x 122)), 60848#(and (<= main_a_x 123) (not (= main_x main_y))), 60849#(and (not (= main_x main_y)) (<= main_a_x 124)), 60850#(and (not (= main_x main_y)) (<= main_a_x 125)), 60851#(and (not (= main_x main_y)) (<= main_a_x 126)), 60852#(and (not (= main_x main_y)) (<= main_a_x 127)), 60853#(and (<= main_a_x 128) (not (= main_x main_y))), 60854#(and (<= main_a_x 129) (not (= main_x main_y))), 60855#(and (not (= main_x main_y)) (<= main_a_x 130)), 60856#(and (not (= main_x main_y)) (<= main_a_x 131)), 60857#(and (not (= main_x main_y)) (<= main_a_x 132)), 60858#(and (not (= main_x main_y)) (<= main_a_x 133)), 60859#(and (not (= main_x main_y)) (<= main_a_x 134)), 60860#(and (<= main_a_x 135) (not (= main_x main_y))), 60861#(and (<= main_a_x 136) (not (= main_x main_y))), 60862#(and (not (= main_x main_y)) (<= main_a_x 137)), 60863#(and (not (= main_x main_y)) (<= main_a_x 138)), 60864#(and (not (= main_x main_y)) (<= main_a_x 139)), 60865#(and (<= main_a_x 140) (not (= main_x main_y))), 60866#(and (<= main_a_x 141) (not (= main_x main_y))), 60867#(and (not (= main_x main_y)) (<= main_a_x 142)), 60868#(and (<= main_a_x 143) (not (= main_x main_y))), 60869#(and (<= main_a_x 144) (not (= main_x main_y))), 60870#(and (not (= main_x main_y)) (<= main_a_x 145)), 60871#(and (<= main_a_x 146) (not (= main_x main_y))), 60872#(and (not (= main_x main_y)) (<= main_a_x 147)), 60873#(and (<= main_a_x 148) (not (= main_x main_y))), 60874#(and (not (= main_x main_y)) (<= main_a_x 149)), 60875#(and (not (= main_x main_y)) (<= main_a_x 150)), 60876#(<= main_a_x 151)] [2018-07-23 13:54:29,270 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 13:54:29,270 INFO L450 AbstractCegarLoop]: Interpolant automaton has 154 states [2018-07-23 13:54:29,271 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 154 interpolants. [2018-07-23 13:54:29,272 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11781, Invalid=11781, Unknown=0, NotChecked=0, Total=23562 [2018-07-23 13:54:29,272 INFO L87 Difference]: Start difference. First operand 155 states and 155 transitions. Second operand 154 states. [2018-07-23 13:54:29,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:29,664 INFO L93 Difference]: Finished difference Result 158 states and 158 transitions. [2018-07-23 13:54:29,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 154 states. [2018-07-23 13:54:29,664 INFO L78 Accepts]: Start accepts. Automaton has 154 states. Word has length 154 [2018-07-23 13:54:29,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:29,665 INFO L225 Difference]: With dead ends: 158 [2018-07-23 13:54:29,665 INFO L226 Difference]: Without dead ends: 156 [2018-07-23 13:54:29,666 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=11781, Invalid=11781, Unknown=0, NotChecked=0, Total=23562 [2018-07-23 13:54:29,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2018-07-23 13:54:29,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2018-07-23 13:54:29,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2018-07-23 13:54:29,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 156 transitions. [2018-07-23 13:54:29,670 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 156 transitions. Word has length 154 [2018-07-23 13:54:29,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:29,670 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 156 transitions. [2018-07-23 13:54:29,670 INFO L472 AbstractCegarLoop]: Interpolant automaton has 154 states. [2018-07-23 13:54:29,670 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 156 transitions. [2018-07-23 13:54:29,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-07-23 13:54:29,670 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:29,670 INFO L357 BasicCegarLoop]: trace histogram [152, 1, 1, 1] [2018-07-23 13:54:29,670 INFO L414 AbstractCegarLoop]: === Iteration 153 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:29,671 INFO L82 PathProgramCache]: Analyzing trace with hash 489725484, now seen corresponding path program 152 times [2018-07-23 13:54:29,671 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:30,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:32,360 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 13:54:32,361 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:32,361 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [154] total 154 [2018-07-23 13:54:32,361 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:32,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:32,362 INFO L185 omatonBuilderFactory]: Interpolants [61505#true, 61506#false, 61507#(and (not (= main_x main_y)) (<= main_a_x 0)), 61508#(and (not (= main_x main_y)) (<= main_a_x 1)), 61509#(and (not (= main_x main_y)) (<= main_a_x 2)), 61510#(and (not (= main_x main_y)) (<= main_a_x 3)), 61511#(and (<= main_a_x 4) (not (= main_x main_y))), 61512#(and (<= main_a_x 5) (not (= main_x main_y))), 61513#(and (not (= main_x main_y)) (<= main_a_x 6)), 61514#(and (<= main_a_x 7) (not (= main_x main_y))), 61515#(and (not (= main_x main_y)) (<= main_a_x 8)), 61516#(and (not (= main_x main_y)) (<= main_a_x 9)), 61517#(and (<= main_a_x 10) (not (= main_x main_y))), 61518#(and (not (= main_x main_y)) (<= main_a_x 11)), 61519#(and (not (= main_x main_y)) (<= main_a_x 12)), 61520#(and (<= main_a_x 13) (not (= main_x main_y))), 61521#(and (not (= main_x main_y)) (<= main_a_x 14)), 61522#(and (<= main_a_x 15) (not (= main_x main_y))), 61523#(and (not (= main_x main_y)) (<= main_a_x 16)), 61524#(and (not (= main_x main_y)) (<= main_a_x 17)), 61525#(and (<= main_a_x 18) (not (= main_x main_y))), 61526#(and (<= main_a_x 19) (not (= main_x main_y))), 61527#(and (not (= main_x main_y)) (<= main_a_x 20)), 61528#(and (not (= main_x main_y)) (<= main_a_x 21)), 61529#(and (not (= main_x main_y)) (<= main_a_x 22)), 61530#(and (<= main_a_x 23) (not (= main_x main_y))), 61531#(and (not (= main_x main_y)) (<= main_a_x 24)), 61532#(and (<= main_a_x 25) (not (= main_x main_y))), 61533#(and (not (= main_x main_y)) (<= main_a_x 26)), 61534#(and (not (= main_x main_y)) (<= main_a_x 27)), 61535#(and (not (= main_x main_y)) (<= main_a_x 28)), 61536#(and (not (= main_x main_y)) (<= main_a_x 29)), 61537#(and (<= main_a_x 30) (not (= main_x main_y))), 61538#(and (<= main_a_x 31) (not (= main_x main_y))), 61539#(and (not (= main_x main_y)) (<= main_a_x 32)), 61540#(and (not (= main_x main_y)) (<= main_a_x 33)), 61541#(and (not (= main_x main_y)) (<= main_a_x 34)), 61542#(and (<= main_a_x 35) (not (= main_x main_y))), 61543#(and (not (= main_x main_y)) (<= main_a_x 36)), 61544#(and (<= main_a_x 37) (not (= main_x main_y))), 61545#(and (not (= main_x main_y)) (<= main_a_x 38)), 61546#(and (<= main_a_x 39) (not (= main_x main_y))), 61547#(and (<= main_a_x 40) (not (= main_x main_y))), 61548#(and (not (= main_x main_y)) (<= main_a_x 41)), 61549#(and (not (= main_x main_y)) (<= main_a_x 42)), 61550#(and (<= main_a_x 43) (not (= main_x main_y))), 61551#(and (<= main_a_x 44) (not (= main_x main_y))), 61552#(and (<= main_a_x 45) (not (= main_x main_y))), 61553#(and (<= main_a_x 46) (not (= main_x main_y))), 61554#(and (<= main_a_x 47) (not (= main_x main_y))), 61555#(and (<= main_a_x 48) (not (= main_x main_y))), 61556#(and (not (= main_x main_y)) (<= main_a_x 49)), 61557#(and (not (= main_x main_y)) (<= main_a_x 50)), 61558#(and (<= main_a_x 51) (not (= main_x main_y))), 61559#(and (not (= main_x main_y)) (<= main_a_x 52)), 61560#(and (<= main_a_x 53) (not (= main_x main_y))), 61561#(and (<= main_a_x 54) (not (= main_x main_y))), 61562#(and (not (= main_x main_y)) (<= main_a_x 55)), 61563#(and (not (= main_x main_y)) (<= main_a_x 56)), 61564#(and (not (= main_x main_y)) (<= main_a_x 57)), 61565#(and (not (= main_x main_y)) (<= main_a_x 58)), 61566#(and (not (= main_x main_y)) (<= main_a_x 59)), 61567#(and (<= main_a_x 60) (not (= main_x main_y))), 61568#(and (not (= main_x main_y)) (<= main_a_x 61)), 61569#(and (not (= main_x main_y)) (<= main_a_x 62)), 61570#(and (<= main_a_x 63) (not (= main_x main_y))), 61571#(and (<= main_a_x 64) (not (= main_x main_y))), 61572#(and (<= main_a_x 65) (not (= main_x main_y))), 61573#(and (<= main_a_x 66) (not (= main_x main_y))), 61574#(and (<= main_a_x 67) (not (= main_x main_y))), 61575#(and (not (= main_x main_y)) (<= main_a_x 68)), 61576#(and (<= main_a_x 69) (not (= main_x main_y))), 61577#(and (<= main_a_x 70) (not (= main_x main_y))), 61578#(and (<= main_a_x 71) (not (= main_x main_y))), 61579#(and (not (= main_x main_y)) (<= main_a_x 72)), 61580#(and (not (= main_x main_y)) (<= main_a_x 73)), 61581#(and (<= main_a_x 74) (not (= main_x main_y))), 61582#(and (<= main_a_x 75) (not (= main_x main_y))), 61583#(and (not (= main_x main_y)) (<= main_a_x 76)), 61584#(and (not (= main_x main_y)) (<= main_a_x 77)), 61585#(and (<= main_a_x 78) (not (= main_x main_y))), 61586#(and (<= main_a_x 79) (not (= main_x main_y))), 61587#(and (not (= main_x main_y)) (<= main_a_x 80)), 61588#(and (not (= main_x main_y)) (<= main_a_x 81)), 61589#(and (not (= main_x main_y)) (<= main_a_x 82)), 61590#(and (not (= main_x main_y)) (<= main_a_x 83)), 61591#(and (<= main_a_x 84) (not (= main_x main_y))), 61592#(and (not (= main_x main_y)) (<= main_a_x 85)), 61593#(and (not (= main_x main_y)) (<= main_a_x 86)), 61594#(and (<= main_a_x 87) (not (= main_x main_y))), 61595#(and (not (= main_x main_y)) (<= main_a_x 88)), 61596#(and (<= main_a_x 89) (not (= main_x main_y))), 61597#(and (not (= main_x main_y)) (<= main_a_x 90)), 61598#(and (<= main_a_x 91) (not (= main_x main_y))), 61599#(and (not (= main_x main_y)) (<= main_a_x 92)), 61600#(and (not (= main_x main_y)) (<= main_a_x 93)), 61601#(and (<= main_a_x 94) (not (= main_x main_y))), 61602#(and (<= main_a_x 95) (not (= main_x main_y))), 61603#(and (not (= main_x main_y)) (<= main_a_x 96)), 61604#(and (<= main_a_x 97) (not (= main_x main_y))), 61605#(and (not (= main_x main_y)) (<= main_a_x 98)), 61606#(and (<= main_a_x 99) (not (= main_x main_y))), 61607#(and (<= main_a_x 100) (not (= main_x main_y))), 61608#(and (not (= main_x main_y)) (<= main_a_x 101)), 61609#(and (not (= main_x main_y)) (<= main_a_x 102)), 61610#(and (not (= main_x main_y)) (<= main_a_x 103)), 61611#(and (<= main_a_x 104) (not (= main_x main_y))), 61612#(and (<= main_a_x 105) (not (= main_x main_y))), 61613#(and (not (= main_x main_y)) (<= main_a_x 106)), 61614#(and (not (= main_x main_y)) (<= main_a_x 107)), 61615#(and (not (= main_x main_y)) (<= main_a_x 108)), 61616#(and (not (= main_x main_y)) (<= main_a_x 109)), 61617#(and (<= main_a_x 110) (not (= main_x main_y))), 61618#(and (not (= main_x main_y)) (<= main_a_x 111)), 61619#(and (<= main_a_x 112) (not (= main_x main_y))), 61620#(and (<= main_a_x 113) (not (= main_x main_y))), 61621#(and (not (= main_x main_y)) (<= main_a_x 114)), 61622#(and (not (= main_x main_y)) (<= main_a_x 115)), 61623#(and (not (= main_x main_y)) (<= main_a_x 116)), 61624#(and (<= main_a_x 117) (not (= main_x main_y))), 61625#(and (not (= main_x main_y)) (<= main_a_x 118)), 61626#(and (not (= main_x main_y)) (<= main_a_x 119)), 61627#(and (not (= main_x main_y)) (<= main_a_x 120)), 61628#(and (not (= main_x main_y)) (<= main_a_x 121)), 61629#(and (not (= main_x main_y)) (<= main_a_x 122)), 61630#(and (<= main_a_x 123) (not (= main_x main_y))), 61631#(and (not (= main_x main_y)) (<= main_a_x 124)), 61632#(and (not (= main_x main_y)) (<= main_a_x 125)), 61633#(and (not (= main_x main_y)) (<= main_a_x 126)), 61634#(and (not (= main_x main_y)) (<= main_a_x 127)), 61635#(and (<= main_a_x 128) (not (= main_x main_y))), 61636#(and (<= main_a_x 129) (not (= main_x main_y))), 61637#(and (not (= main_x main_y)) (<= main_a_x 130)), 61638#(and (not (= main_x main_y)) (<= main_a_x 131)), 61639#(and (not (= main_x main_y)) (<= main_a_x 132)), 61640#(and (not (= main_x main_y)) (<= main_a_x 133)), 61641#(and (not (= main_x main_y)) (<= main_a_x 134)), 61642#(and (<= main_a_x 135) (not (= main_x main_y))), 61643#(and (<= main_a_x 136) (not (= main_x main_y))), 61644#(and (not (= main_x main_y)) (<= main_a_x 137)), 61645#(and (not (= main_x main_y)) (<= main_a_x 138)), 61646#(and (not (= main_x main_y)) (<= main_a_x 139)), 61647#(and (<= main_a_x 140) (not (= main_x main_y))), 61648#(and (<= main_a_x 141) (not (= main_x main_y))), 61649#(and (not (= main_x main_y)) (<= main_a_x 142)), 61650#(and (<= main_a_x 143) (not (= main_x main_y))), 61651#(and (<= main_a_x 144) (not (= main_x main_y))), 61652#(and (not (= main_x main_y)) (<= main_a_x 145)), 61653#(and (<= main_a_x 146) (not (= main_x main_y))), 61654#(and (not (= main_x main_y)) (<= main_a_x 147)), 61655#(and (<= main_a_x 148) (not (= main_x main_y))), 61656#(and (not (= main_x main_y)) (<= main_a_x 149)), 61657#(and (not (= main_x main_y)) (<= main_a_x 150)), 61658#(and (<= main_a_x 151) (not (= main_x main_y))), 61659#(<= main_a_x 152)] [2018-07-23 13:54:32,362 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 13:54:32,362 INFO L450 AbstractCegarLoop]: Interpolant automaton has 155 states [2018-07-23 13:54:32,365 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 155 interpolants. [2018-07-23 13:54:32,366 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11935, Invalid=11935, Unknown=0, NotChecked=0, Total=23870 [2018-07-23 13:54:32,366 INFO L87 Difference]: Start difference. First operand 156 states and 156 transitions. Second operand 155 states. [2018-07-23 13:54:32,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:32,858 INFO L93 Difference]: Finished difference Result 159 states and 159 transitions. [2018-07-23 13:54:32,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 155 states. [2018-07-23 13:54:32,859 INFO L78 Accepts]: Start accepts. Automaton has 155 states. Word has length 155 [2018-07-23 13:54:32,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:32,859 INFO L225 Difference]: With dead ends: 159 [2018-07-23 13:54:32,859 INFO L226 Difference]: Without dead ends: 157 [2018-07-23 13:54:32,861 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 153 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=11935, Invalid=11935, Unknown=0, NotChecked=0, Total=23870 [2018-07-23 13:54:32,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2018-07-23 13:54:32,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2018-07-23 13:54:32,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2018-07-23 13:54:32,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 157 transitions. [2018-07-23 13:54:32,867 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 157 transitions. Word has length 155 [2018-07-23 13:54:32,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:32,867 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 157 transitions. [2018-07-23 13:54:32,867 INFO L472 AbstractCegarLoop]: Interpolant automaton has 155 states. [2018-07-23 13:54:32,867 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 157 transitions. [2018-07-23 13:54:32,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2018-07-23 13:54:32,868 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:32,868 INFO L357 BasicCegarLoop]: trace histogram [153, 1, 1, 1] [2018-07-23 13:54:32,868 INFO L414 AbstractCegarLoop]: === Iteration 154 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:32,868 INFO L82 PathProgramCache]: Analyzing trace with hash -1998363801, now seen corresponding path program 153 times [2018-07-23 13:54:32,869 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:33,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:35,823 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 13:54:35,824 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:35,824 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [155] total 155 [2018-07-23 13:54:35,824 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:35,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:35,825 INFO L185 omatonBuilderFactory]: Interpolants [62292#true, 62293#false, 62294#(and (not (= main_x main_y)) (<= main_a_x 0)), 62295#(and (not (= main_x main_y)) (<= main_a_x 1)), 62296#(and (not (= main_x main_y)) (<= main_a_x 2)), 62297#(and (not (= main_x main_y)) (<= main_a_x 3)), 62298#(and (<= main_a_x 4) (not (= main_x main_y))), 62299#(and (<= main_a_x 5) (not (= main_x main_y))), 62300#(and (not (= main_x main_y)) (<= main_a_x 6)), 62301#(and (<= main_a_x 7) (not (= main_x main_y))), 62302#(and (not (= main_x main_y)) (<= main_a_x 8)), 62303#(and (not (= main_x main_y)) (<= main_a_x 9)), 62304#(and (<= main_a_x 10) (not (= main_x main_y))), 62305#(and (not (= main_x main_y)) (<= main_a_x 11)), 62306#(and (not (= main_x main_y)) (<= main_a_x 12)), 62307#(and (<= main_a_x 13) (not (= main_x main_y))), 62308#(and (not (= main_x main_y)) (<= main_a_x 14)), 62309#(and (<= main_a_x 15) (not (= main_x main_y))), 62310#(and (not (= main_x main_y)) (<= main_a_x 16)), 62311#(and (not (= main_x main_y)) (<= main_a_x 17)), 62312#(and (<= main_a_x 18) (not (= main_x main_y))), 62313#(and (<= main_a_x 19) (not (= main_x main_y))), 62314#(and (not (= main_x main_y)) (<= main_a_x 20)), 62315#(and (not (= main_x main_y)) (<= main_a_x 21)), 62316#(and (not (= main_x main_y)) (<= main_a_x 22)), 62317#(and (<= main_a_x 23) (not (= main_x main_y))), 62318#(and (not (= main_x main_y)) (<= main_a_x 24)), 62319#(and (<= main_a_x 25) (not (= main_x main_y))), 62320#(and (not (= main_x main_y)) (<= main_a_x 26)), 62321#(and (not (= main_x main_y)) (<= main_a_x 27)), 62322#(and (not (= main_x main_y)) (<= main_a_x 28)), 62323#(and (not (= main_x main_y)) (<= main_a_x 29)), 62324#(and (<= main_a_x 30) (not (= main_x main_y))), 62325#(and (<= main_a_x 31) (not (= main_x main_y))), 62326#(and (not (= main_x main_y)) (<= main_a_x 32)), 62327#(and (not (= main_x main_y)) (<= main_a_x 33)), 62328#(and (not (= main_x main_y)) (<= main_a_x 34)), 62329#(and (<= main_a_x 35) (not (= main_x main_y))), 62330#(and (not (= main_x main_y)) (<= main_a_x 36)), 62331#(and (<= main_a_x 37) (not (= main_x main_y))), 62332#(and (not (= main_x main_y)) (<= main_a_x 38)), 62333#(and (<= main_a_x 39) (not (= main_x main_y))), 62334#(and (<= main_a_x 40) (not (= main_x main_y))), 62335#(and (not (= main_x main_y)) (<= main_a_x 41)), 62336#(and (not (= main_x main_y)) (<= main_a_x 42)), 62337#(and (<= main_a_x 43) (not (= main_x main_y))), 62338#(and (<= main_a_x 44) (not (= main_x main_y))), 62339#(and (<= main_a_x 45) (not (= main_x main_y))), 62340#(and (<= main_a_x 46) (not (= main_x main_y))), 62341#(and (<= main_a_x 47) (not (= main_x main_y))), 62342#(and (<= main_a_x 48) (not (= main_x main_y))), 62343#(and (not (= main_x main_y)) (<= main_a_x 49)), 62344#(and (not (= main_x main_y)) (<= main_a_x 50)), 62345#(and (<= main_a_x 51) (not (= main_x main_y))), 62346#(and (not (= main_x main_y)) (<= main_a_x 52)), 62347#(and (<= main_a_x 53) (not (= main_x main_y))), 62348#(and (<= main_a_x 54) (not (= main_x main_y))), 62349#(and (not (= main_x main_y)) (<= main_a_x 55)), 62350#(and (not (= main_x main_y)) (<= main_a_x 56)), 62351#(and (not (= main_x main_y)) (<= main_a_x 57)), 62352#(and (not (= main_x main_y)) (<= main_a_x 58)), 62353#(and (not (= main_x main_y)) (<= main_a_x 59)), 62354#(and (<= main_a_x 60) (not (= main_x main_y))), 62355#(and (not (= main_x main_y)) (<= main_a_x 61)), 62356#(and (not (= main_x main_y)) (<= main_a_x 62)), 62357#(and (<= main_a_x 63) (not (= main_x main_y))), 62358#(and (<= main_a_x 64) (not (= main_x main_y))), 62359#(and (<= main_a_x 65) (not (= main_x main_y))), 62360#(and (<= main_a_x 66) (not (= main_x main_y))), 62361#(and (<= main_a_x 67) (not (= main_x main_y))), 62362#(and (not (= main_x main_y)) (<= main_a_x 68)), 62363#(and (<= main_a_x 69) (not (= main_x main_y))), 62364#(and (<= main_a_x 70) (not (= main_x main_y))), 62365#(and (<= main_a_x 71) (not (= main_x main_y))), 62366#(and (not (= main_x main_y)) (<= main_a_x 72)), 62367#(and (not (= main_x main_y)) (<= main_a_x 73)), 62368#(and (<= main_a_x 74) (not (= main_x main_y))), 62369#(and (<= main_a_x 75) (not (= main_x main_y))), 62370#(and (not (= main_x main_y)) (<= main_a_x 76)), 62371#(and (not (= main_x main_y)) (<= main_a_x 77)), 62372#(and (<= main_a_x 78) (not (= main_x main_y))), 62373#(and (<= main_a_x 79) (not (= main_x main_y))), 62374#(and (not (= main_x main_y)) (<= main_a_x 80)), 62375#(and (not (= main_x main_y)) (<= main_a_x 81)), 62376#(and (not (= main_x main_y)) (<= main_a_x 82)), 62377#(and (not (= main_x main_y)) (<= main_a_x 83)), 62378#(and (<= main_a_x 84) (not (= main_x main_y))), 62379#(and (not (= main_x main_y)) (<= main_a_x 85)), 62380#(and (not (= main_x main_y)) (<= main_a_x 86)), 62381#(and (<= main_a_x 87) (not (= main_x main_y))), 62382#(and (not (= main_x main_y)) (<= main_a_x 88)), 62383#(and (<= main_a_x 89) (not (= main_x main_y))), 62384#(and (not (= main_x main_y)) (<= main_a_x 90)), 62385#(and (<= main_a_x 91) (not (= main_x main_y))), 62386#(and (not (= main_x main_y)) (<= main_a_x 92)), 62387#(and (not (= main_x main_y)) (<= main_a_x 93)), 62388#(and (<= main_a_x 94) (not (= main_x main_y))), 62389#(and (<= main_a_x 95) (not (= main_x main_y))), 62390#(and (not (= main_x main_y)) (<= main_a_x 96)), 62391#(and (<= main_a_x 97) (not (= main_x main_y))), 62392#(and (not (= main_x main_y)) (<= main_a_x 98)), 62393#(and (<= main_a_x 99) (not (= main_x main_y))), 62394#(and (<= main_a_x 100) (not (= main_x main_y))), 62395#(and (not (= main_x main_y)) (<= main_a_x 101)), 62396#(and (not (= main_x main_y)) (<= main_a_x 102)), 62397#(and (not (= main_x main_y)) (<= main_a_x 103)), 62398#(and (<= main_a_x 104) (not (= main_x main_y))), 62399#(and (<= main_a_x 105) (not (= main_x main_y))), 62400#(and (not (= main_x main_y)) (<= main_a_x 106)), 62401#(and (not (= main_x main_y)) (<= main_a_x 107)), 62402#(and (not (= main_x main_y)) (<= main_a_x 108)), 62403#(and (not (= main_x main_y)) (<= main_a_x 109)), 62404#(and (<= main_a_x 110) (not (= main_x main_y))), 62405#(and (not (= main_x main_y)) (<= main_a_x 111)), 62406#(and (<= main_a_x 112) (not (= main_x main_y))), 62407#(and (<= main_a_x 113) (not (= main_x main_y))), 62408#(and (not (= main_x main_y)) (<= main_a_x 114)), 62409#(and (not (= main_x main_y)) (<= main_a_x 115)), 62410#(and (not (= main_x main_y)) (<= main_a_x 116)), 62411#(and (<= main_a_x 117) (not (= main_x main_y))), 62412#(and (not (= main_x main_y)) (<= main_a_x 118)), 62413#(and (not (= main_x main_y)) (<= main_a_x 119)), 62414#(and (not (= main_x main_y)) (<= main_a_x 120)), 62415#(and (not (= main_x main_y)) (<= main_a_x 121)), 62416#(and (not (= main_x main_y)) (<= main_a_x 122)), 62417#(and (<= main_a_x 123) (not (= main_x main_y))), 62418#(and (not (= main_x main_y)) (<= main_a_x 124)), 62419#(and (not (= main_x main_y)) (<= main_a_x 125)), 62420#(and (not (= main_x main_y)) (<= main_a_x 126)), 62421#(and (not (= main_x main_y)) (<= main_a_x 127)), 62422#(and (<= main_a_x 128) (not (= main_x main_y))), 62423#(and (<= main_a_x 129) (not (= main_x main_y))), 62424#(and (not (= main_x main_y)) (<= main_a_x 130)), 62425#(and (not (= main_x main_y)) (<= main_a_x 131)), 62426#(and (not (= main_x main_y)) (<= main_a_x 132)), 62427#(and (not (= main_x main_y)) (<= main_a_x 133)), 62428#(and (not (= main_x main_y)) (<= main_a_x 134)), 62429#(and (<= main_a_x 135) (not (= main_x main_y))), 62430#(and (<= main_a_x 136) (not (= main_x main_y))), 62431#(and (not (= main_x main_y)) (<= main_a_x 137)), 62432#(and (not (= main_x main_y)) (<= main_a_x 138)), 62433#(and (not (= main_x main_y)) (<= main_a_x 139)), 62434#(and (<= main_a_x 140) (not (= main_x main_y))), 62435#(and (<= main_a_x 141) (not (= main_x main_y))), 62436#(and (not (= main_x main_y)) (<= main_a_x 142)), 62437#(and (<= main_a_x 143) (not (= main_x main_y))), 62438#(and (<= main_a_x 144) (not (= main_x main_y))), 62439#(and (not (= main_x main_y)) (<= main_a_x 145)), 62440#(and (<= main_a_x 146) (not (= main_x main_y))), 62441#(and (not (= main_x main_y)) (<= main_a_x 147)), 62442#(and (<= main_a_x 148) (not (= main_x main_y))), 62443#(and (not (= main_x main_y)) (<= main_a_x 149)), 62444#(and (not (= main_x main_y)) (<= main_a_x 150)), 62445#(and (<= main_a_x 151) (not (= main_x main_y))), 62446#(and (not (= main_x main_y)) (<= main_a_x 152)), 62447#(<= main_a_x 153)] [2018-07-23 13:54:35,825 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 13:54:35,826 INFO L450 AbstractCegarLoop]: Interpolant automaton has 156 states [2018-07-23 13:54:35,828 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 156 interpolants. [2018-07-23 13:54:35,829 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12090, Invalid=12090, Unknown=0, NotChecked=0, Total=24180 [2018-07-23 13:54:35,829 INFO L87 Difference]: Start difference. First operand 157 states and 157 transitions. Second operand 156 states. [2018-07-23 13:54:36,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:36,336 INFO L93 Difference]: Finished difference Result 160 states and 160 transitions. [2018-07-23 13:54:36,336 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 156 states. [2018-07-23 13:54:36,336 INFO L78 Accepts]: Start accepts. Automaton has 156 states. Word has length 156 [2018-07-23 13:54:36,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:36,337 INFO L225 Difference]: With dead ends: 160 [2018-07-23 13:54:36,337 INFO L226 Difference]: Without dead ends: 158 [2018-07-23 13:54:36,338 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=12090, Invalid=12090, Unknown=0, NotChecked=0, Total=24180 [2018-07-23 13:54:36,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2018-07-23 13:54:36,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2018-07-23 13:54:36,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2018-07-23 13:54:36,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 158 transitions. [2018-07-23 13:54:36,343 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 158 transitions. Word has length 156 [2018-07-23 13:54:36,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:36,343 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 158 transitions. [2018-07-23 13:54:36,343 INFO L472 AbstractCegarLoop]: Interpolant automaton has 156 states. [2018-07-23 13:54:36,343 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 158 transitions. [2018-07-23 13:54:36,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2018-07-23 13:54:36,344 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:36,344 INFO L357 BasicCegarLoop]: trace histogram [154, 1, 1, 1] [2018-07-23 13:54:36,344 INFO L414 AbstractCegarLoop]: === Iteration 155 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:36,344 INFO L82 PathProgramCache]: Analyzing trace with hash -1819720308, now seen corresponding path program 154 times [2018-07-23 13:54:36,344 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:37,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:39,407 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 13:54:39,408 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:39,408 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [156] total 156 [2018-07-23 13:54:39,408 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:39,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:39,408 INFO L185 omatonBuilderFactory]: Interpolants [63232#(and (<= main_a_x 146) (not (= main_x main_y))), 63233#(and (not (= main_x main_y)) (<= main_a_x 147)), 63234#(and (<= main_a_x 148) (not (= main_x main_y))), 63235#(and (not (= main_x main_y)) (<= main_a_x 149)), 63236#(and (not (= main_x main_y)) (<= main_a_x 150)), 63237#(and (<= main_a_x 151) (not (= main_x main_y))), 63238#(and (not (= main_x main_y)) (<= main_a_x 152)), 63239#(and (not (= main_x main_y)) (<= main_a_x 153)), 63240#(<= main_a_x 154), 63084#true, 63085#false, 63086#(and (not (= main_x main_y)) (<= main_a_x 0)), 63087#(and (not (= main_x main_y)) (<= main_a_x 1)), 63088#(and (not (= main_x main_y)) (<= main_a_x 2)), 63089#(and (not (= main_x main_y)) (<= main_a_x 3)), 63090#(and (<= main_a_x 4) (not (= main_x main_y))), 63091#(and (<= main_a_x 5) (not (= main_x main_y))), 63092#(and (not (= main_x main_y)) (<= main_a_x 6)), 63093#(and (<= main_a_x 7) (not (= main_x main_y))), 63094#(and (not (= main_x main_y)) (<= main_a_x 8)), 63095#(and (not (= main_x main_y)) (<= main_a_x 9)), 63096#(and (<= main_a_x 10) (not (= main_x main_y))), 63097#(and (not (= main_x main_y)) (<= main_a_x 11)), 63098#(and (not (= main_x main_y)) (<= main_a_x 12)), 63099#(and (<= main_a_x 13) (not (= main_x main_y))), 63100#(and (not (= main_x main_y)) (<= main_a_x 14)), 63101#(and (<= main_a_x 15) (not (= main_x main_y))), 63102#(and (not (= main_x main_y)) (<= main_a_x 16)), 63103#(and (not (= main_x main_y)) (<= main_a_x 17)), 63104#(and (<= main_a_x 18) (not (= main_x main_y))), 63105#(and (<= main_a_x 19) (not (= main_x main_y))), 63106#(and (not (= main_x main_y)) (<= main_a_x 20)), 63107#(and (not (= main_x main_y)) (<= main_a_x 21)), 63108#(and (not (= main_x main_y)) (<= main_a_x 22)), 63109#(and (<= main_a_x 23) (not (= main_x main_y))), 63110#(and (not (= main_x main_y)) (<= main_a_x 24)), 63111#(and (<= main_a_x 25) (not (= main_x main_y))), 63112#(and (not (= main_x main_y)) (<= main_a_x 26)), 63113#(and (not (= main_x main_y)) (<= main_a_x 27)), 63114#(and (not (= main_x main_y)) (<= main_a_x 28)), 63115#(and (not (= main_x main_y)) (<= main_a_x 29)), 63116#(and (<= main_a_x 30) (not (= main_x main_y))), 63117#(and (<= main_a_x 31) (not (= main_x main_y))), 63118#(and (not (= main_x main_y)) (<= main_a_x 32)), 63119#(and (not (= main_x main_y)) (<= main_a_x 33)), 63120#(and (not (= main_x main_y)) (<= main_a_x 34)), 63121#(and (<= main_a_x 35) (not (= main_x main_y))), 63122#(and (not (= main_x main_y)) (<= main_a_x 36)), 63123#(and (<= main_a_x 37) (not (= main_x main_y))), 63124#(and (not (= main_x main_y)) (<= main_a_x 38)), 63125#(and (<= main_a_x 39) (not (= main_x main_y))), 63126#(and (<= main_a_x 40) (not (= main_x main_y))), 63127#(and (not (= main_x main_y)) (<= main_a_x 41)), 63128#(and (not (= main_x main_y)) (<= main_a_x 42)), 63129#(and (<= main_a_x 43) (not (= main_x main_y))), 63130#(and (<= main_a_x 44) (not (= main_x main_y))), 63131#(and (<= main_a_x 45) (not (= main_x main_y))), 63132#(and (<= main_a_x 46) (not (= main_x main_y))), 63133#(and (<= main_a_x 47) (not (= main_x main_y))), 63134#(and (<= main_a_x 48) (not (= main_x main_y))), 63135#(and (not (= main_x main_y)) (<= main_a_x 49)), 63136#(and (not (= main_x main_y)) (<= main_a_x 50)), 63137#(and (<= main_a_x 51) (not (= main_x main_y))), 63138#(and (not (= main_x main_y)) (<= main_a_x 52)), 63139#(and (<= main_a_x 53) (not (= main_x main_y))), 63140#(and (<= main_a_x 54) (not (= main_x main_y))), 63141#(and (not (= main_x main_y)) (<= main_a_x 55)), 63142#(and (not (= main_x main_y)) (<= main_a_x 56)), 63143#(and (not (= main_x main_y)) (<= main_a_x 57)), 63144#(and (not (= main_x main_y)) (<= main_a_x 58)), 63145#(and (not (= main_x main_y)) (<= main_a_x 59)), 63146#(and (<= main_a_x 60) (not (= main_x main_y))), 63147#(and (not (= main_x main_y)) (<= main_a_x 61)), 63148#(and (not (= main_x main_y)) (<= main_a_x 62)), 63149#(and (<= main_a_x 63) (not (= main_x main_y))), 63150#(and (<= main_a_x 64) (not (= main_x main_y))), 63151#(and (<= main_a_x 65) (not (= main_x main_y))), 63152#(and (<= main_a_x 66) (not (= main_x main_y))), 63153#(and (<= main_a_x 67) (not (= main_x main_y))), 63154#(and (not (= main_x main_y)) (<= main_a_x 68)), 63155#(and (<= main_a_x 69) (not (= main_x main_y))), 63156#(and (<= main_a_x 70) (not (= main_x main_y))), 63157#(and (<= main_a_x 71) (not (= main_x main_y))), 63158#(and (not (= main_x main_y)) (<= main_a_x 72)), 63159#(and (not (= main_x main_y)) (<= main_a_x 73)), 63160#(and (<= main_a_x 74) (not (= main_x main_y))), 63161#(and (<= main_a_x 75) (not (= main_x main_y))), 63162#(and (not (= main_x main_y)) (<= main_a_x 76)), 63163#(and (not (= main_x main_y)) (<= main_a_x 77)), 63164#(and (<= main_a_x 78) (not (= main_x main_y))), 63165#(and (<= main_a_x 79) (not (= main_x main_y))), 63166#(and (not (= main_x main_y)) (<= main_a_x 80)), 63167#(and (not (= main_x main_y)) (<= main_a_x 81)), 63168#(and (not (= main_x main_y)) (<= main_a_x 82)), 63169#(and (not (= main_x main_y)) (<= main_a_x 83)), 63170#(and (<= main_a_x 84) (not (= main_x main_y))), 63171#(and (not (= main_x main_y)) (<= main_a_x 85)), 63172#(and (not (= main_x main_y)) (<= main_a_x 86)), 63173#(and (<= main_a_x 87) (not (= main_x main_y))), 63174#(and (not (= main_x main_y)) (<= main_a_x 88)), 63175#(and (<= main_a_x 89) (not (= main_x main_y))), 63176#(and (not (= main_x main_y)) (<= main_a_x 90)), 63177#(and (<= main_a_x 91) (not (= main_x main_y))), 63178#(and (not (= main_x main_y)) (<= main_a_x 92)), 63179#(and (not (= main_x main_y)) (<= main_a_x 93)), 63180#(and (<= main_a_x 94) (not (= main_x main_y))), 63181#(and (<= main_a_x 95) (not (= main_x main_y))), 63182#(and (not (= main_x main_y)) (<= main_a_x 96)), 63183#(and (<= main_a_x 97) (not (= main_x main_y))), 63184#(and (not (= main_x main_y)) (<= main_a_x 98)), 63185#(and (<= main_a_x 99) (not (= main_x main_y))), 63186#(and (<= main_a_x 100) (not (= main_x main_y))), 63187#(and (not (= main_x main_y)) (<= main_a_x 101)), 63188#(and (not (= main_x main_y)) (<= main_a_x 102)), 63189#(and (not (= main_x main_y)) (<= main_a_x 103)), 63190#(and (<= main_a_x 104) (not (= main_x main_y))), 63191#(and (<= main_a_x 105) (not (= main_x main_y))), 63192#(and (not (= main_x main_y)) (<= main_a_x 106)), 63193#(and (not (= main_x main_y)) (<= main_a_x 107)), 63194#(and (not (= main_x main_y)) (<= main_a_x 108)), 63195#(and (not (= main_x main_y)) (<= main_a_x 109)), 63196#(and (<= main_a_x 110) (not (= main_x main_y))), 63197#(and (not (= main_x main_y)) (<= main_a_x 111)), 63198#(and (<= main_a_x 112) (not (= main_x main_y))), 63199#(and (<= main_a_x 113) (not (= main_x main_y))), 63200#(and (not (= main_x main_y)) (<= main_a_x 114)), 63201#(and (not (= main_x main_y)) (<= main_a_x 115)), 63202#(and (not (= main_x main_y)) (<= main_a_x 116)), 63203#(and (<= main_a_x 117) (not (= main_x main_y))), 63204#(and (not (= main_x main_y)) (<= main_a_x 118)), 63205#(and (not (= main_x main_y)) (<= main_a_x 119)), 63206#(and (not (= main_x main_y)) (<= main_a_x 120)), 63207#(and (not (= main_x main_y)) (<= main_a_x 121)), 63208#(and (not (= main_x main_y)) (<= main_a_x 122)), 63209#(and (<= main_a_x 123) (not (= main_x main_y))), 63210#(and (not (= main_x main_y)) (<= main_a_x 124)), 63211#(and (not (= main_x main_y)) (<= main_a_x 125)), 63212#(and (not (= main_x main_y)) (<= main_a_x 126)), 63213#(and (not (= main_x main_y)) (<= main_a_x 127)), 63214#(and (<= main_a_x 128) (not (= main_x main_y))), 63215#(and (<= main_a_x 129) (not (= main_x main_y))), 63216#(and (not (= main_x main_y)) (<= main_a_x 130)), 63217#(and (not (= main_x main_y)) (<= main_a_x 131)), 63218#(and (not (= main_x main_y)) (<= main_a_x 132)), 63219#(and (not (= main_x main_y)) (<= main_a_x 133)), 63220#(and (not (= main_x main_y)) (<= main_a_x 134)), 63221#(and (<= main_a_x 135) (not (= main_x main_y))), 63222#(and (<= main_a_x 136) (not (= main_x main_y))), 63223#(and (not (= main_x main_y)) (<= main_a_x 137)), 63224#(and (not (= main_x main_y)) (<= main_a_x 138)), 63225#(and (not (= main_x main_y)) (<= main_a_x 139)), 63226#(and (<= main_a_x 140) (not (= main_x main_y))), 63227#(and (<= main_a_x 141) (not (= main_x main_y))), 63228#(and (not (= main_x main_y)) (<= main_a_x 142)), 63229#(and (<= main_a_x 143) (not (= main_x main_y))), 63230#(and (<= main_a_x 144) (not (= main_x main_y))), 63231#(and (not (= main_x main_y)) (<= main_a_x 145))] [2018-07-23 13:54:39,409 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 13:54:39,409 INFO L450 AbstractCegarLoop]: Interpolant automaton has 157 states [2018-07-23 13:54:39,411 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 157 interpolants. [2018-07-23 13:54:39,412 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12246, Invalid=12246, Unknown=0, NotChecked=0, Total=24492 [2018-07-23 13:54:39,412 INFO L87 Difference]: Start difference. First operand 158 states and 158 transitions. Second operand 157 states. [2018-07-23 13:54:39,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:39,759 INFO L93 Difference]: Finished difference Result 161 states and 161 transitions. [2018-07-23 13:54:39,760 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 157 states. [2018-07-23 13:54:39,760 INFO L78 Accepts]: Start accepts. Automaton has 157 states. Word has length 157 [2018-07-23 13:54:39,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:39,760 INFO L225 Difference]: With dead ends: 161 [2018-07-23 13:54:39,760 INFO L226 Difference]: Without dead ends: 159 [2018-07-23 13:54:39,761 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=12246, Invalid=12246, Unknown=0, NotChecked=0, Total=24492 [2018-07-23 13:54:39,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2018-07-23 13:54:39,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2018-07-23 13:54:39,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2018-07-23 13:54:39,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 159 transitions. [2018-07-23 13:54:39,765 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 159 transitions. Word has length 157 [2018-07-23 13:54:39,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:39,765 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 159 transitions. [2018-07-23 13:54:39,765 INFO L472 AbstractCegarLoop]: Interpolant automaton has 157 states. [2018-07-23 13:54:39,765 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 159 transitions. [2018-07-23 13:54:39,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2018-07-23 13:54:39,766 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:39,766 INFO L357 BasicCegarLoop]: trace histogram [155, 1, 1, 1] [2018-07-23 13:54:39,766 INFO L414 AbstractCegarLoop]: === Iteration 156 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:39,766 INFO L82 PathProgramCache]: Analyzing trace with hash -576739321, now seen corresponding path program 155 times [2018-07-23 13:54:39,766 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:40,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:42,636 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 13:54:42,636 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:42,636 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [157] total 157 [2018-07-23 13:54:42,637 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:42,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:42,637 INFO L185 omatonBuilderFactory]: Interpolants [64000#(and (<= main_a_x 117) (not (= main_x main_y))), 64001#(and (not (= main_x main_y)) (<= main_a_x 118)), 64002#(and (not (= main_x main_y)) (<= main_a_x 119)), 64003#(and (not (= main_x main_y)) (<= main_a_x 120)), 64004#(and (not (= main_x main_y)) (<= main_a_x 121)), 64005#(and (not (= main_x main_y)) (<= main_a_x 122)), 64006#(and (<= main_a_x 123) (not (= main_x main_y))), 64007#(and (not (= main_x main_y)) (<= main_a_x 124)), 64008#(and (not (= main_x main_y)) (<= main_a_x 125)), 64009#(and (not (= main_x main_y)) (<= main_a_x 126)), 64010#(and (not (= main_x main_y)) (<= main_a_x 127)), 64011#(and (<= main_a_x 128) (not (= main_x main_y))), 64012#(and (<= main_a_x 129) (not (= main_x main_y))), 64013#(and (not (= main_x main_y)) (<= main_a_x 130)), 64014#(and (not (= main_x main_y)) (<= main_a_x 131)), 64015#(and (not (= main_x main_y)) (<= main_a_x 132)), 64016#(and (not (= main_x main_y)) (<= main_a_x 133)), 64017#(and (not (= main_x main_y)) (<= main_a_x 134)), 64018#(and (<= main_a_x 135) (not (= main_x main_y))), 64019#(and (<= main_a_x 136) (not (= main_x main_y))), 64020#(and (not (= main_x main_y)) (<= main_a_x 137)), 64021#(and (not (= main_x main_y)) (<= main_a_x 138)), 64022#(and (not (= main_x main_y)) (<= main_a_x 139)), 64023#(and (<= main_a_x 140) (not (= main_x main_y))), 64024#(and (<= main_a_x 141) (not (= main_x main_y))), 64025#(and (not (= main_x main_y)) (<= main_a_x 142)), 64026#(and (<= main_a_x 143) (not (= main_x main_y))), 64027#(and (<= main_a_x 144) (not (= main_x main_y))), 64028#(and (not (= main_x main_y)) (<= main_a_x 145)), 64029#(and (<= main_a_x 146) (not (= main_x main_y))), 64030#(and (not (= main_x main_y)) (<= main_a_x 147)), 64031#(and (<= main_a_x 148) (not (= main_x main_y))), 64032#(and (not (= main_x main_y)) (<= main_a_x 149)), 64033#(and (not (= main_x main_y)) (<= main_a_x 150)), 64034#(and (<= main_a_x 151) (not (= main_x main_y))), 64035#(and (not (= main_x main_y)) (<= main_a_x 152)), 64036#(and (not (= main_x main_y)) (<= main_a_x 153)), 64037#(and (<= main_a_x 154) (not (= main_x main_y))), 64038#(<= main_a_x 155), 63881#true, 63882#false, 63883#(and (not (= main_x main_y)) (<= main_a_x 0)), 63884#(and (not (= main_x main_y)) (<= main_a_x 1)), 63885#(and (not (= main_x main_y)) (<= main_a_x 2)), 63886#(and (not (= main_x main_y)) (<= main_a_x 3)), 63887#(and (<= main_a_x 4) (not (= main_x main_y))), 63888#(and (<= main_a_x 5) (not (= main_x main_y))), 63889#(and (not (= main_x main_y)) (<= main_a_x 6)), 63890#(and (<= main_a_x 7) (not (= main_x main_y))), 63891#(and (not (= main_x main_y)) (<= main_a_x 8)), 63892#(and (not (= main_x main_y)) (<= main_a_x 9)), 63893#(and (<= main_a_x 10) (not (= main_x main_y))), 63894#(and (not (= main_x main_y)) (<= main_a_x 11)), 63895#(and (not (= main_x main_y)) (<= main_a_x 12)), 63896#(and (<= main_a_x 13) (not (= main_x main_y))), 63897#(and (not (= main_x main_y)) (<= main_a_x 14)), 63898#(and (<= main_a_x 15) (not (= main_x main_y))), 63899#(and (not (= main_x main_y)) (<= main_a_x 16)), 63900#(and (not (= main_x main_y)) (<= main_a_x 17)), 63901#(and (<= main_a_x 18) (not (= main_x main_y))), 63902#(and (<= main_a_x 19) (not (= main_x main_y))), 63903#(and (not (= main_x main_y)) (<= main_a_x 20)), 63904#(and (not (= main_x main_y)) (<= main_a_x 21)), 63905#(and (not (= main_x main_y)) (<= main_a_x 22)), 63906#(and (<= main_a_x 23) (not (= main_x main_y))), 63907#(and (not (= main_x main_y)) (<= main_a_x 24)), 63908#(and (<= main_a_x 25) (not (= main_x main_y))), 63909#(and (not (= main_x main_y)) (<= main_a_x 26)), 63910#(and (not (= main_x main_y)) (<= main_a_x 27)), 63911#(and (not (= main_x main_y)) (<= main_a_x 28)), 63912#(and (not (= main_x main_y)) (<= main_a_x 29)), 63913#(and (<= main_a_x 30) (not (= main_x main_y))), 63914#(and (<= main_a_x 31) (not (= main_x main_y))), 63915#(and (not (= main_x main_y)) (<= main_a_x 32)), 63916#(and (not (= main_x main_y)) (<= main_a_x 33)), 63917#(and (not (= main_x main_y)) (<= main_a_x 34)), 63918#(and (<= main_a_x 35) (not (= main_x main_y))), 63919#(and (not (= main_x main_y)) (<= main_a_x 36)), 63920#(and (<= main_a_x 37) (not (= main_x main_y))), 63921#(and (not (= main_x main_y)) (<= main_a_x 38)), 63922#(and (<= main_a_x 39) (not (= main_x main_y))), 63923#(and (<= main_a_x 40) (not (= main_x main_y))), 63924#(and (not (= main_x main_y)) (<= main_a_x 41)), 63925#(and (not (= main_x main_y)) (<= main_a_x 42)), 63926#(and (<= main_a_x 43) (not (= main_x main_y))), 63927#(and (<= main_a_x 44) (not (= main_x main_y))), 63928#(and (<= main_a_x 45) (not (= main_x main_y))), 63929#(and (<= main_a_x 46) (not (= main_x main_y))), 63930#(and (<= main_a_x 47) (not (= main_x main_y))), 63931#(and (<= main_a_x 48) (not (= main_x main_y))), 63932#(and (not (= main_x main_y)) (<= main_a_x 49)), 63933#(and (not (= main_x main_y)) (<= main_a_x 50)), 63934#(and (<= main_a_x 51) (not (= main_x main_y))), 63935#(and (not (= main_x main_y)) (<= main_a_x 52)), 63936#(and (<= main_a_x 53) (not (= main_x main_y))), 63937#(and (<= main_a_x 54) (not (= main_x main_y))), 63938#(and (not (= main_x main_y)) (<= main_a_x 55)), 63939#(and (not (= main_x main_y)) (<= main_a_x 56)), 63940#(and (not (= main_x main_y)) (<= main_a_x 57)), 63941#(and (not (= main_x main_y)) (<= main_a_x 58)), 63942#(and (not (= main_x main_y)) (<= main_a_x 59)), 63943#(and (<= main_a_x 60) (not (= main_x main_y))), 63944#(and (not (= main_x main_y)) (<= main_a_x 61)), 63945#(and (not (= main_x main_y)) (<= main_a_x 62)), 63946#(and (<= main_a_x 63) (not (= main_x main_y))), 63947#(and (<= main_a_x 64) (not (= main_x main_y))), 63948#(and (<= main_a_x 65) (not (= main_x main_y))), 63949#(and (<= main_a_x 66) (not (= main_x main_y))), 63950#(and (<= main_a_x 67) (not (= main_x main_y))), 63951#(and (not (= main_x main_y)) (<= main_a_x 68)), 63952#(and (<= main_a_x 69) (not (= main_x main_y))), 63953#(and (<= main_a_x 70) (not (= main_x main_y))), 63954#(and (<= main_a_x 71) (not (= main_x main_y))), 63955#(and (not (= main_x main_y)) (<= main_a_x 72)), 63956#(and (not (= main_x main_y)) (<= main_a_x 73)), 63957#(and (<= main_a_x 74) (not (= main_x main_y))), 63958#(and (<= main_a_x 75) (not (= main_x main_y))), 63959#(and (not (= main_x main_y)) (<= main_a_x 76)), 63960#(and (not (= main_x main_y)) (<= main_a_x 77)), 63961#(and (<= main_a_x 78) (not (= main_x main_y))), 63962#(and (<= main_a_x 79) (not (= main_x main_y))), 63963#(and (not (= main_x main_y)) (<= main_a_x 80)), 63964#(and (not (= main_x main_y)) (<= main_a_x 81)), 63965#(and (not (= main_x main_y)) (<= main_a_x 82)), 63966#(and (not (= main_x main_y)) (<= main_a_x 83)), 63967#(and (<= main_a_x 84) (not (= main_x main_y))), 63968#(and (not (= main_x main_y)) (<= main_a_x 85)), 63969#(and (not (= main_x main_y)) (<= main_a_x 86)), 63970#(and (<= main_a_x 87) (not (= main_x main_y))), 63971#(and (not (= main_x main_y)) (<= main_a_x 88)), 63972#(and (<= main_a_x 89) (not (= main_x main_y))), 63973#(and (not (= main_x main_y)) (<= main_a_x 90)), 63974#(and (<= main_a_x 91) (not (= main_x main_y))), 63975#(and (not (= main_x main_y)) (<= main_a_x 92)), 63976#(and (not (= main_x main_y)) (<= main_a_x 93)), 63977#(and (<= main_a_x 94) (not (= main_x main_y))), 63978#(and (<= main_a_x 95) (not (= main_x main_y))), 63979#(and (not (= main_x main_y)) (<= main_a_x 96)), 63980#(and (<= main_a_x 97) (not (= main_x main_y))), 63981#(and (not (= main_x main_y)) (<= main_a_x 98)), 63982#(and (<= main_a_x 99) (not (= main_x main_y))), 63983#(and (<= main_a_x 100) (not (= main_x main_y))), 63984#(and (not (= main_x main_y)) (<= main_a_x 101)), 63985#(and (not (= main_x main_y)) (<= main_a_x 102)), 63986#(and (not (= main_x main_y)) (<= main_a_x 103)), 63987#(and (<= main_a_x 104) (not (= main_x main_y))), 63988#(and (<= main_a_x 105) (not (= main_x main_y))), 63989#(and (not (= main_x main_y)) (<= main_a_x 106)), 63990#(and (not (= main_x main_y)) (<= main_a_x 107)), 63991#(and (not (= main_x main_y)) (<= main_a_x 108)), 63992#(and (not (= main_x main_y)) (<= main_a_x 109)), 63993#(and (<= main_a_x 110) (not (= main_x main_y))), 63994#(and (not (= main_x main_y)) (<= main_a_x 111)), 63995#(and (<= main_a_x 112) (not (= main_x main_y))), 63996#(and (<= main_a_x 113) (not (= main_x main_y))), 63997#(and (not (= main_x main_y)) (<= main_a_x 114)), 63998#(and (not (= main_x main_y)) (<= main_a_x 115)), 63999#(and (not (= main_x main_y)) (<= main_a_x 116))] [2018-07-23 13:54:42,639 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 13:54:42,639 INFO L450 AbstractCegarLoop]: Interpolant automaton has 158 states [2018-07-23 13:54:42,642 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 158 interpolants. [2018-07-23 13:54:42,643 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12403, Invalid=12403, Unknown=0, NotChecked=0, Total=24806 [2018-07-23 13:54:42,643 INFO L87 Difference]: Start difference. First operand 159 states and 159 transitions. Second operand 158 states. [2018-07-23 13:54:42,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:42,919 INFO L93 Difference]: Finished difference Result 162 states and 162 transitions. [2018-07-23 13:54:42,920 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 158 states. [2018-07-23 13:54:42,920 INFO L78 Accepts]: Start accepts. Automaton has 158 states. Word has length 158 [2018-07-23 13:54:42,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:42,920 INFO L225 Difference]: With dead ends: 162 [2018-07-23 13:54:42,920 INFO L226 Difference]: Without dead ends: 160 [2018-07-23 13:54:42,922 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=12403, Invalid=12403, Unknown=0, NotChecked=0, Total=24806 [2018-07-23 13:54:42,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2018-07-23 13:54:42,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2018-07-23 13:54:42,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2018-07-23 13:54:42,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 160 transitions. [2018-07-23 13:54:42,926 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 160 transitions. Word has length 158 [2018-07-23 13:54:42,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:42,926 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 160 transitions. [2018-07-23 13:54:42,926 INFO L472 AbstractCegarLoop]: Interpolant automaton has 158 states. [2018-07-23 13:54:42,927 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 160 transitions. [2018-07-23 13:54:42,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2018-07-23 13:54:42,927 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:42,927 INFO L357 BasicCegarLoop]: trace histogram [156, 1, 1, 1] [2018-07-23 13:54:42,927 INFO L414 AbstractCegarLoop]: === Iteration 157 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:42,927 INFO L82 PathProgramCache]: Analyzing trace with hash -699034388, now seen corresponding path program 156 times [2018-07-23 13:54:42,927 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:43,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:45,672 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 13:54:45,673 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:45,673 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [158] total 158 [2018-07-23 13:54:45,673 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:45,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:45,674 INFO L185 omatonBuilderFactory]: Interpolants [64768#(and (not (= main_x main_y)) (<= main_a_x 83)), 64769#(and (<= main_a_x 84) (not (= main_x main_y))), 64770#(and (not (= main_x main_y)) (<= main_a_x 85)), 64771#(and (not (= main_x main_y)) (<= main_a_x 86)), 64772#(and (<= main_a_x 87) (not (= main_x main_y))), 64773#(and (not (= main_x main_y)) (<= main_a_x 88)), 64774#(and (<= main_a_x 89) (not (= main_x main_y))), 64775#(and (not (= main_x main_y)) (<= main_a_x 90)), 64776#(and (<= main_a_x 91) (not (= main_x main_y))), 64777#(and (not (= main_x main_y)) (<= main_a_x 92)), 64778#(and (not (= main_x main_y)) (<= main_a_x 93)), 64779#(and (<= main_a_x 94) (not (= main_x main_y))), 64780#(and (<= main_a_x 95) (not (= main_x main_y))), 64781#(and (not (= main_x main_y)) (<= main_a_x 96)), 64782#(and (<= main_a_x 97) (not (= main_x main_y))), 64783#(and (not (= main_x main_y)) (<= main_a_x 98)), 64784#(and (<= main_a_x 99) (not (= main_x main_y))), 64785#(and (<= main_a_x 100) (not (= main_x main_y))), 64786#(and (not (= main_x main_y)) (<= main_a_x 101)), 64787#(and (not (= main_x main_y)) (<= main_a_x 102)), 64788#(and (not (= main_x main_y)) (<= main_a_x 103)), 64789#(and (<= main_a_x 104) (not (= main_x main_y))), 64790#(and (<= main_a_x 105) (not (= main_x main_y))), 64791#(and (not (= main_x main_y)) (<= main_a_x 106)), 64792#(and (not (= main_x main_y)) (<= main_a_x 107)), 64793#(and (not (= main_x main_y)) (<= main_a_x 108)), 64794#(and (not (= main_x main_y)) (<= main_a_x 109)), 64795#(and (<= main_a_x 110) (not (= main_x main_y))), 64796#(and (not (= main_x main_y)) (<= main_a_x 111)), 64797#(and (<= main_a_x 112) (not (= main_x main_y))), 64798#(and (<= main_a_x 113) (not (= main_x main_y))), 64799#(and (not (= main_x main_y)) (<= main_a_x 114)), 64800#(and (not (= main_x main_y)) (<= main_a_x 115)), 64801#(and (not (= main_x main_y)) (<= main_a_x 116)), 64802#(and (<= main_a_x 117) (not (= main_x main_y))), 64803#(and (not (= main_x main_y)) (<= main_a_x 118)), 64804#(and (not (= main_x main_y)) (<= main_a_x 119)), 64805#(and (not (= main_x main_y)) (<= main_a_x 120)), 64806#(and (not (= main_x main_y)) (<= main_a_x 121)), 64807#(and (not (= main_x main_y)) (<= main_a_x 122)), 64808#(and (<= main_a_x 123) (not (= main_x main_y))), 64809#(and (not (= main_x main_y)) (<= main_a_x 124)), 64810#(and (not (= main_x main_y)) (<= main_a_x 125)), 64811#(and (not (= main_x main_y)) (<= main_a_x 126)), 64812#(and (not (= main_x main_y)) (<= main_a_x 127)), 64813#(and (<= main_a_x 128) (not (= main_x main_y))), 64814#(and (<= main_a_x 129) (not (= main_x main_y))), 64815#(and (not (= main_x main_y)) (<= main_a_x 130)), 64816#(and (not (= main_x main_y)) (<= main_a_x 131)), 64817#(and (not (= main_x main_y)) (<= main_a_x 132)), 64818#(and (not (= main_x main_y)) (<= main_a_x 133)), 64819#(and (not (= main_x main_y)) (<= main_a_x 134)), 64820#(and (<= main_a_x 135) (not (= main_x main_y))), 64821#(and (<= main_a_x 136) (not (= main_x main_y))), 64822#(and (not (= main_x main_y)) (<= main_a_x 137)), 64823#(and (not (= main_x main_y)) (<= main_a_x 138)), 64824#(and (not (= main_x main_y)) (<= main_a_x 139)), 64825#(and (<= main_a_x 140) (not (= main_x main_y))), 64826#(and (<= main_a_x 141) (not (= main_x main_y))), 64827#(and (not (= main_x main_y)) (<= main_a_x 142)), 64828#(and (<= main_a_x 143) (not (= main_x main_y))), 64829#(and (<= main_a_x 144) (not (= main_x main_y))), 64830#(and (not (= main_x main_y)) (<= main_a_x 145)), 64831#(and (<= main_a_x 146) (not (= main_x main_y))), 64832#(and (not (= main_x main_y)) (<= main_a_x 147)), 64833#(and (<= main_a_x 148) (not (= main_x main_y))), 64834#(and (not (= main_x main_y)) (<= main_a_x 149)), 64835#(and (not (= main_x main_y)) (<= main_a_x 150)), 64836#(and (<= main_a_x 151) (not (= main_x main_y))), 64837#(and (not (= main_x main_y)) (<= main_a_x 152)), 64838#(and (not (= main_x main_y)) (<= main_a_x 153)), 64839#(and (<= main_a_x 154) (not (= main_x main_y))), 64840#(and (not (= main_x main_y)) (<= main_a_x 155)), 64841#(<= main_a_x 156), 64683#true, 64684#false, 64685#(and (not (= main_x main_y)) (<= main_a_x 0)), 64686#(and (not (= main_x main_y)) (<= main_a_x 1)), 64687#(and (not (= main_x main_y)) (<= main_a_x 2)), 64688#(and (not (= main_x main_y)) (<= main_a_x 3)), 64689#(and (<= main_a_x 4) (not (= main_x main_y))), 64690#(and (<= main_a_x 5) (not (= main_x main_y))), 64691#(and (not (= main_x main_y)) (<= main_a_x 6)), 64692#(and (<= main_a_x 7) (not (= main_x main_y))), 64693#(and (not (= main_x main_y)) (<= main_a_x 8)), 64694#(and (not (= main_x main_y)) (<= main_a_x 9)), 64695#(and (<= main_a_x 10) (not (= main_x main_y))), 64696#(and (not (= main_x main_y)) (<= main_a_x 11)), 64697#(and (not (= main_x main_y)) (<= main_a_x 12)), 64698#(and (<= main_a_x 13) (not (= main_x main_y))), 64699#(and (not (= main_x main_y)) (<= main_a_x 14)), 64700#(and (<= main_a_x 15) (not (= main_x main_y))), 64701#(and (not (= main_x main_y)) (<= main_a_x 16)), 64702#(and (not (= main_x main_y)) (<= main_a_x 17)), 64703#(and (<= main_a_x 18) (not (= main_x main_y))), 64704#(and (<= main_a_x 19) (not (= main_x main_y))), 64705#(and (not (= main_x main_y)) (<= main_a_x 20)), 64706#(and (not (= main_x main_y)) (<= main_a_x 21)), 64707#(and (not (= main_x main_y)) (<= main_a_x 22)), 64708#(and (<= main_a_x 23) (not (= main_x main_y))), 64709#(and (not (= main_x main_y)) (<= main_a_x 24)), 64710#(and (<= main_a_x 25) (not (= main_x main_y))), 64711#(and (not (= main_x main_y)) (<= main_a_x 26)), 64712#(and (not (= main_x main_y)) (<= main_a_x 27)), 64713#(and (not (= main_x main_y)) (<= main_a_x 28)), 64714#(and (not (= main_x main_y)) (<= main_a_x 29)), 64715#(and (<= main_a_x 30) (not (= main_x main_y))), 64716#(and (<= main_a_x 31) (not (= main_x main_y))), 64717#(and (not (= main_x main_y)) (<= main_a_x 32)), 64718#(and (not (= main_x main_y)) (<= main_a_x 33)), 64719#(and (not (= main_x main_y)) (<= main_a_x 34)), 64720#(and (<= main_a_x 35) (not (= main_x main_y))), 64721#(and (not (= main_x main_y)) (<= main_a_x 36)), 64722#(and (<= main_a_x 37) (not (= main_x main_y))), 64723#(and (not (= main_x main_y)) (<= main_a_x 38)), 64724#(and (<= main_a_x 39) (not (= main_x main_y))), 64725#(and (<= main_a_x 40) (not (= main_x main_y))), 64726#(and (not (= main_x main_y)) (<= main_a_x 41)), 64727#(and (not (= main_x main_y)) (<= main_a_x 42)), 64728#(and (<= main_a_x 43) (not (= main_x main_y))), 64729#(and (<= main_a_x 44) (not (= main_x main_y))), 64730#(and (<= main_a_x 45) (not (= main_x main_y))), 64731#(and (<= main_a_x 46) (not (= main_x main_y))), 64732#(and (<= main_a_x 47) (not (= main_x main_y))), 64733#(and (<= main_a_x 48) (not (= main_x main_y))), 64734#(and (not (= main_x main_y)) (<= main_a_x 49)), 64735#(and (not (= main_x main_y)) (<= main_a_x 50)), 64736#(and (<= main_a_x 51) (not (= main_x main_y))), 64737#(and (not (= main_x main_y)) (<= main_a_x 52)), 64738#(and (<= main_a_x 53) (not (= main_x main_y))), 64739#(and (<= main_a_x 54) (not (= main_x main_y))), 64740#(and (not (= main_x main_y)) (<= main_a_x 55)), 64741#(and (not (= main_x main_y)) (<= main_a_x 56)), 64742#(and (not (= main_x main_y)) (<= main_a_x 57)), 64743#(and (not (= main_x main_y)) (<= main_a_x 58)), 64744#(and (not (= main_x main_y)) (<= main_a_x 59)), 64745#(and (<= main_a_x 60) (not (= main_x main_y))), 64746#(and (not (= main_x main_y)) (<= main_a_x 61)), 64747#(and (not (= main_x main_y)) (<= main_a_x 62)), 64748#(and (<= main_a_x 63) (not (= main_x main_y))), 64749#(and (<= main_a_x 64) (not (= main_x main_y))), 64750#(and (<= main_a_x 65) (not (= main_x main_y))), 64751#(and (<= main_a_x 66) (not (= main_x main_y))), 64752#(and (<= main_a_x 67) (not (= main_x main_y))), 64753#(and (not (= main_x main_y)) (<= main_a_x 68)), 64754#(and (<= main_a_x 69) (not (= main_x main_y))), 64755#(and (<= main_a_x 70) (not (= main_x main_y))), 64756#(and (<= main_a_x 71) (not (= main_x main_y))), 64757#(and (not (= main_x main_y)) (<= main_a_x 72)), 64758#(and (not (= main_x main_y)) (<= main_a_x 73)), 64759#(and (<= main_a_x 74) (not (= main_x main_y))), 64760#(and (<= main_a_x 75) (not (= main_x main_y))), 64761#(and (not (= main_x main_y)) (<= main_a_x 76)), 64762#(and (not (= main_x main_y)) (<= main_a_x 77)), 64763#(and (<= main_a_x 78) (not (= main_x main_y))), 64764#(and (<= main_a_x 79) (not (= main_x main_y))), 64765#(and (not (= main_x main_y)) (<= main_a_x 80)), 64766#(and (not (= main_x main_y)) (<= main_a_x 81)), 64767#(and (not (= main_x main_y)) (<= main_a_x 82))] [2018-07-23 13:54:45,674 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 13:54:45,674 INFO L450 AbstractCegarLoop]: Interpolant automaton has 159 states [2018-07-23 13:54:45,676 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 159 interpolants. [2018-07-23 13:54:45,677 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12561, Invalid=12561, Unknown=0, NotChecked=0, Total=25122 [2018-07-23 13:54:45,677 INFO L87 Difference]: Start difference. First operand 160 states and 160 transitions. Second operand 159 states. [2018-07-23 13:54:45,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:45,835 INFO L93 Difference]: Finished difference Result 163 states and 163 transitions. [2018-07-23 13:54:45,835 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 159 states. [2018-07-23 13:54:45,835 INFO L78 Accepts]: Start accepts. Automaton has 159 states. Word has length 159 [2018-07-23 13:54:45,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:45,836 INFO L225 Difference]: With dead ends: 163 [2018-07-23 13:54:45,836 INFO L226 Difference]: Without dead ends: 161 [2018-07-23 13:54:45,837 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 157 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=12561, Invalid=12561, Unknown=0, NotChecked=0, Total=25122 [2018-07-23 13:54:45,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2018-07-23 13:54:45,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2018-07-23 13:54:45,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2018-07-23 13:54:45,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 161 transitions. [2018-07-23 13:54:45,841 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 161 transitions. Word has length 159 [2018-07-23 13:54:45,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:45,842 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 161 transitions. [2018-07-23 13:54:45,842 INFO L472 AbstractCegarLoop]: Interpolant automaton has 159 states. [2018-07-23 13:54:45,842 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 161 transitions. [2018-07-23 13:54:45,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2018-07-23 13:54:45,842 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:45,842 INFO L357 BasicCegarLoop]: trace histogram [157, 1, 1, 1] [2018-07-23 13:54:45,842 INFO L414 AbstractCegarLoop]: === Iteration 158 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:45,843 INFO L82 PathProgramCache]: Analyzing trace with hash -195214169, now seen corresponding path program 157 times [2018-07-23 13:54:45,843 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:46,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:48,670 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 13:54:48,670 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:48,670 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [159] total 159 [2018-07-23 13:54:48,670 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:48,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:48,671 INFO L185 omatonBuilderFactory]: Interpolants [65537#(and (<= main_a_x 45) (not (= main_x main_y))), 65536#(and (<= main_a_x 44) (not (= main_x main_y))), 65539#(and (<= main_a_x 47) (not (= main_x main_y))), 65538#(and (<= main_a_x 46) (not (= main_x main_y))), 65541#(and (not (= main_x main_y)) (<= main_a_x 49)), 65540#(and (<= main_a_x 48) (not (= main_x main_y))), 65543#(and (<= main_a_x 51) (not (= main_x main_y))), 65542#(and (not (= main_x main_y)) (<= main_a_x 50)), 65545#(and (<= main_a_x 53) (not (= main_x main_y))), 65544#(and (not (= main_x main_y)) (<= main_a_x 52)), 65547#(and (not (= main_x main_y)) (<= main_a_x 55)), 65546#(and (<= main_a_x 54) (not (= main_x main_y))), 65549#(and (not (= main_x main_y)) (<= main_a_x 57)), 65548#(and (not (= main_x main_y)) (<= main_a_x 56)), 65551#(and (not (= main_x main_y)) (<= main_a_x 59)), 65550#(and (not (= main_x main_y)) (<= main_a_x 58)), 65553#(and (not (= main_x main_y)) (<= main_a_x 61)), 65552#(and (<= main_a_x 60) (not (= main_x main_y))), 65555#(and (<= main_a_x 63) (not (= main_x main_y))), 65554#(and (not (= main_x main_y)) (<= main_a_x 62)), 65557#(and (<= main_a_x 65) (not (= main_x main_y))), 65556#(and (<= main_a_x 64) (not (= main_x main_y))), 65559#(and (<= main_a_x 67) (not (= main_x main_y))), 65558#(and (<= main_a_x 66) (not (= main_x main_y))), 65561#(and (<= main_a_x 69) (not (= main_x main_y))), 65560#(and (not (= main_x main_y)) (<= main_a_x 68)), 65563#(and (<= main_a_x 71) (not (= main_x main_y))), 65562#(and (<= main_a_x 70) (not (= main_x main_y))), 65565#(and (not (= main_x main_y)) (<= main_a_x 73)), 65564#(and (not (= main_x main_y)) (<= main_a_x 72)), 65567#(and (<= main_a_x 75) (not (= main_x main_y))), 65566#(and (<= main_a_x 74) (not (= main_x main_y))), 65569#(and (not (= main_x main_y)) (<= main_a_x 77)), 65568#(and (not (= main_x main_y)) (<= main_a_x 76)), 65571#(and (<= main_a_x 79) (not (= main_x main_y))), 65570#(and (<= main_a_x 78) (not (= main_x main_y))), 65573#(and (not (= main_x main_y)) (<= main_a_x 81)), 65572#(and (not (= main_x main_y)) (<= main_a_x 80)), 65575#(and (not (= main_x main_y)) (<= main_a_x 83)), 65574#(and (not (= main_x main_y)) (<= main_a_x 82)), 65577#(and (not (= main_x main_y)) (<= main_a_x 85)), 65576#(and (<= main_a_x 84) (not (= main_x main_y))), 65579#(and (<= main_a_x 87) (not (= main_x main_y))), 65578#(and (not (= main_x main_y)) (<= main_a_x 86)), 65581#(and (<= main_a_x 89) (not (= main_x main_y))), 65580#(and (not (= main_x main_y)) (<= main_a_x 88)), 65583#(and (<= main_a_x 91) (not (= main_x main_y))), 65582#(and (not (= main_x main_y)) (<= main_a_x 90)), 65585#(and (not (= main_x main_y)) (<= main_a_x 93)), 65584#(and (not (= main_x main_y)) (<= main_a_x 92)), 65587#(and (<= main_a_x 95) (not (= main_x main_y))), 65586#(and (<= main_a_x 94) (not (= main_x main_y))), 65589#(and (<= main_a_x 97) (not (= main_x main_y))), 65588#(and (not (= main_x main_y)) (<= main_a_x 96)), 65591#(and (<= main_a_x 99) (not (= main_x main_y))), 65590#(and (not (= main_x main_y)) (<= main_a_x 98)), 65593#(and (not (= main_x main_y)) (<= main_a_x 101)), 65592#(and (<= main_a_x 100) (not (= main_x main_y))), 65595#(and (not (= main_x main_y)) (<= main_a_x 103)), 65594#(and (not (= main_x main_y)) (<= main_a_x 102)), 65597#(and (<= main_a_x 105) (not (= main_x main_y))), 65596#(and (<= main_a_x 104) (not (= main_x main_y))), 65599#(and (not (= main_x main_y)) (<= main_a_x 107)), 65598#(and (not (= main_x main_y)) (<= main_a_x 106)), 65601#(and (not (= main_x main_y)) (<= main_a_x 109)), 65600#(and (not (= main_x main_y)) (<= main_a_x 108)), 65603#(and (not (= main_x main_y)) (<= main_a_x 111)), 65602#(and (<= main_a_x 110) (not (= main_x main_y))), 65605#(and (<= main_a_x 113) (not (= main_x main_y))), 65604#(and (<= main_a_x 112) (not (= main_x main_y))), 65607#(and (not (= main_x main_y)) (<= main_a_x 115)), 65606#(and (not (= main_x main_y)) (<= main_a_x 114)), 65609#(and (<= main_a_x 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(= main_x main_y))), 65626#(and (not (= main_x main_y)) (<= main_a_x 134)), 65629#(and (not (= main_x main_y)) (<= main_a_x 137)), 65628#(and (<= main_a_x 136) (not (= main_x main_y))), 65631#(and (not (= main_x main_y)) (<= main_a_x 139)), 65630#(and (not (= main_x main_y)) (<= main_a_x 138)), 65633#(and (<= main_a_x 141) (not (= main_x main_y))), 65632#(and (<= main_a_x 140) (not (= main_x main_y))), 65635#(and (<= main_a_x 143) (not (= main_x main_y))), 65634#(and (not (= main_x main_y)) (<= main_a_x 142)), 65637#(and (not (= main_x main_y)) (<= main_a_x 145)), 65636#(and (<= main_a_x 144) (not (= main_x main_y))), 65639#(and (not (= main_x main_y)) (<= main_a_x 147)), 65638#(and (<= main_a_x 146) (not (= main_x main_y))), 65641#(and (not (= main_x main_y)) (<= main_a_x 149)), 65640#(and (<= main_a_x 148) (not (= main_x main_y))), 65643#(and (<= main_a_x 151) (not (= main_x main_y))), 65642#(and (not (= main_x main_y)) (<= main_a_x 150)), 65645#(and (not (= main_x main_y)) (<= main_a_x 153)), 65644#(and (not (= main_x main_y)) (<= main_a_x 152)), 65647#(and (not (= main_x main_y)) (<= main_a_x 155)), 65646#(and (<= main_a_x 154) (not (= main_x main_y))), 65649#(<= main_a_x 157), 65648#(and (<= main_a_x 156) (not (= main_x main_y))), 65490#true, 65491#false, 65492#(and (not (= main_x main_y)) (<= main_a_x 0)), 65493#(and (not (= main_x main_y)) (<= main_a_x 1)), 65494#(and (not (= main_x main_y)) (<= main_a_x 2)), 65495#(and (not (= main_x main_y)) (<= main_a_x 3)), 65496#(and (<= main_a_x 4) (not (= main_x main_y))), 65497#(and (<= main_a_x 5) (not (= main_x main_y))), 65498#(and (not (= main_x main_y)) (<= main_a_x 6)), 65499#(and (<= main_a_x 7) (not (= main_x main_y))), 65500#(and (not (= main_x main_y)) (<= main_a_x 8)), 65501#(and (not (= main_x main_y)) (<= main_a_x 9)), 65502#(and (<= main_a_x 10) (not (= main_x main_y))), 65503#(and (not (= main_x main_y)) (<= main_a_x 11)), 65504#(and (not (= main_x main_y)) (<= main_a_x 12)), 65505#(and (<= main_a_x 13) (not (= main_x main_y))), 65506#(and (not (= main_x main_y)) (<= main_a_x 14)), 65507#(and (<= main_a_x 15) (not (= main_x main_y))), 65508#(and (not (= main_x main_y)) (<= main_a_x 16)), 65509#(and (not (= main_x main_y)) (<= main_a_x 17)), 65510#(and (<= main_a_x 18) (not (= main_x main_y))), 65511#(and (<= main_a_x 19) (not (= main_x main_y))), 65512#(and (not (= main_x main_y)) (<= main_a_x 20)), 65513#(and (not (= main_x main_y)) (<= main_a_x 21)), 65514#(and (not (= main_x main_y)) (<= main_a_x 22)), 65515#(and (<= main_a_x 23) (not (= main_x main_y))), 65516#(and (not (= main_x main_y)) (<= main_a_x 24)), 65517#(and (<= main_a_x 25) (not (= main_x main_y))), 65518#(and (not (= main_x main_y)) (<= main_a_x 26)), 65519#(and (not (= main_x main_y)) (<= main_a_x 27)), 65520#(and (not (= main_x main_y)) (<= main_a_x 28)), 65521#(and (not (= main_x main_y)) (<= main_a_x 29)), 65522#(and (<= main_a_x 30) (not (= main_x main_y))), 65523#(and (<= main_a_x 31) (not (= main_x main_y))), 65524#(and (not (= main_x main_y)) (<= main_a_x 32)), 65525#(and (not (= main_x main_y)) (<= main_a_x 33)), 65526#(and (not (= main_x main_y)) (<= main_a_x 34)), 65527#(and (<= main_a_x 35) (not (= main_x main_y))), 65528#(and (not (= main_x main_y)) (<= main_a_x 36)), 65529#(and (<= main_a_x 37) (not (= main_x main_y))), 65530#(and (not (= main_x main_y)) (<= main_a_x 38)), 65531#(and (<= main_a_x 39) (not (= main_x main_y))), 65532#(and (<= main_a_x 40) (not (= main_x main_y))), 65533#(and (not (= main_x main_y)) (<= main_a_x 41)), 65534#(and (not (= main_x main_y)) (<= main_a_x 42)), 65535#(and (<= main_a_x 43) (not (= main_x main_y)))] [2018-07-23 13:54:48,671 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 13:54:48,671 INFO L450 AbstractCegarLoop]: Interpolant automaton has 160 states [2018-07-23 13:54:48,673 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 160 interpolants. [2018-07-23 13:54:48,673 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12720, Invalid=12720, Unknown=0, NotChecked=0, Total=25440 [2018-07-23 13:54:48,673 INFO L87 Difference]: Start difference. First operand 161 states and 161 transitions. Second operand 160 states. [2018-07-23 13:54:48,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:48,968 INFO L93 Difference]: Finished difference Result 164 states and 164 transitions. [2018-07-23 13:54:48,968 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 160 states. [2018-07-23 13:54:48,968 INFO L78 Accepts]: Start accepts. Automaton has 160 states. Word has length 160 [2018-07-23 13:54:48,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:48,969 INFO L225 Difference]: With dead ends: 164 [2018-07-23 13:54:48,969 INFO L226 Difference]: Without dead ends: 162 [2018-07-23 13:54:48,969 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=12720, Invalid=12720, Unknown=0, NotChecked=0, Total=25440 [2018-07-23 13:54:48,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2018-07-23 13:54:48,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2018-07-23 13:54:48,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2018-07-23 13:54:48,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 162 transitions. [2018-07-23 13:54:48,974 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 162 transitions. Word has length 160 [2018-07-23 13:54:48,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:48,974 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 162 transitions. [2018-07-23 13:54:48,974 INFO L472 AbstractCegarLoop]: Interpolant automaton has 160 states. [2018-07-23 13:54:48,974 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 162 transitions. [2018-07-23 13:54:48,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2018-07-23 13:54:48,974 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:48,974 INFO L357 BasicCegarLoop]: trace histogram [158, 1, 1, 1] [2018-07-23 13:54:48,974 INFO L414 AbstractCegarLoop]: === Iteration 159 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:48,975 INFO L82 PathProgramCache]: Analyzing trace with hash -1756656564, now seen corresponding path program 158 times [2018-07-23 13:54:48,975 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:49,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:51,988 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 13:54:51,989 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:51,989 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [160] total 160 [2018-07-23 13:54:51,989 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:51,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:51,990 INFO L185 omatonBuilderFactory]: Interpolants [66305#(and (not (= main_x main_y)) (<= main_a_x 1)), 66304#(and (not (= main_x main_y)) (<= main_a_x 0)), 66307#(and (not (= main_x main_y)) (<= main_a_x 3)), 66306#(and (not (= main_x main_y)) (<= main_a_x 2)), 66309#(and (<= main_a_x 5) (not (= main_x main_y))), 66308#(and (<= main_a_x 4) (not (= main_x main_y))), 66311#(and (<= main_a_x 7) (not (= main_x main_y))), 66310#(and (not (= main_x main_y)) (<= main_a_x 6)), 66313#(and (not (= main_x main_y)) (<= main_a_x 9)), 66312#(and (not (= main_x main_y)) (<= main_a_x 8)), 66315#(and (not (= main_x main_y)) (<= main_a_x 11)), 66314#(and (<= main_a_x 10) (not (= main_x main_y))), 66317#(and (<= main_a_x 13) (not (= main_x main_y))), 66316#(and (not (= main_x main_y)) (<= main_a_x 12)), 66319#(and (<= main_a_x 15) (not (= main_x main_y))), 66318#(and (not (= main_x main_y)) (<= main_a_x 14)), 66321#(and (not (= main_x main_y)) (<= main_a_x 17)), 66320#(and (not (= main_x main_y)) (<= main_a_x 16)), 66323#(and (<= main_a_x 19) (not (= main_x main_y))), 66322#(and (<= main_a_x 18) (not (= main_x main_y))), 66325#(and (not (= main_x main_y)) (<= main_a_x 21)), 66324#(and (not (= main_x main_y)) (<= main_a_x 20)), 66327#(and (<= main_a_x 23) (not (= main_x main_y))), 66326#(and (not (= main_x main_y)) (<= main_a_x 22)), 66329#(and (<= main_a_x 25) (not (= main_x main_y))), 66328#(and (not (= main_x main_y)) (<= main_a_x 24)), 66331#(and (not (= main_x main_y)) (<= main_a_x 27)), 66330#(and (not (= main_x main_y)) (<= main_a_x 26)), 66333#(and (not (= main_x main_y)) (<= main_a_x 29)), 66332#(and (not (= main_x main_y)) (<= main_a_x 28)), 66335#(and (<= main_a_x 31) (not (= main_x main_y))), 66334#(and (<= main_a_x 30) (not (= main_x main_y))), 66337#(and (not (= main_x main_y)) (<= main_a_x 33)), 66336#(and (not (= main_x main_y)) (<= main_a_x 32)), 66339#(and (<= main_a_x 35) (not (= main_x main_y))), 66338#(and (not (= main_x main_y)) (<= main_a_x 34)), 66341#(and (<= main_a_x 37) (not (= main_x main_y))), 66340#(and (not (= main_x main_y)) (<= main_a_x 36)), 66343#(and (<= main_a_x 39) (not (= main_x main_y))), 66342#(and (not (= main_x main_y)) (<= main_a_x 38)), 66345#(and (not (= main_x main_y)) (<= main_a_x 41)), 66344#(and (<= main_a_x 40) (not (= main_x main_y))), 66347#(and (<= main_a_x 43) (not (= main_x main_y))), 66346#(and (not (= main_x main_y)) (<= main_a_x 42)), 66349#(and (<= main_a_x 45) (not (= main_x main_y))), 66348#(and (<= main_a_x 44) (not (= main_x main_y))), 66351#(and (<= main_a_x 47) (not (= main_x main_y))), 66350#(and (<= main_a_x 46) (not (= main_x main_y))), 66353#(and (not (= main_x main_y)) (<= main_a_x 49)), 66352#(and (<= main_a_x 48) (not (= main_x main_y))), 66355#(and (<= main_a_x 51) (not (= main_x main_y))), 66354#(and (not (= main_x main_y)) (<= main_a_x 50)), 66357#(and (<= main_a_x 53) (not (= main_x main_y))), 66356#(and (not (= main_x main_y)) (<= main_a_x 52)), 66359#(and (not (= main_x main_y)) (<= main_a_x 55)), 66358#(and (<= main_a_x 54) (not (= main_x main_y))), 66361#(and (not (= main_x main_y)) (<= main_a_x 57)), 66360#(and (not (= main_x main_y)) (<= main_a_x 56)), 66363#(and (not (= main_x main_y)) (<= main_a_x 59)), 66362#(and (not (= main_x main_y)) (<= main_a_x 58)), 66365#(and (not (= main_x main_y)) (<= main_a_x 61)), 66364#(and (<= main_a_x 60) (not (= main_x main_y))), 66367#(and (<= main_a_x 63) (not (= main_x main_y))), 66366#(and (not (= main_x main_y)) (<= main_a_x 62)), 66369#(and (<= main_a_x 65) (not (= main_x main_y))), 66368#(and (<= main_a_x 64) (not (= main_x main_y))), 66371#(and (<= main_a_x 67) (not (= main_x main_y))), 66370#(and (<= main_a_x 66) (not (= main_x main_y))), 66373#(and (<= main_a_x 69) (not (= main_x main_y))), 66372#(and (not (= main_x main_y)) (<= main_a_x 68)), 66375#(and (<= main_a_x 71) (not (= main_x main_y))), 66374#(and (<= main_a_x 70) (not (= main_x main_y))), 66377#(and (not (= main_x main_y)) (<= main_a_x 73)), 66376#(and (not (= main_x main_y)) (<= main_a_x 72)), 66379#(and (<= main_a_x 75) (not (= main_x main_y))), 66378#(and (<= main_a_x 74) (not (= main_x main_y))), 66381#(and (not (= main_x main_y)) (<= main_a_x 77)), 66380#(and (not (= main_x main_y)) (<= main_a_x 76)), 66383#(and (<= main_a_x 79) (not (= main_x main_y))), 66382#(and (<= main_a_x 78) (not (= main_x main_y))), 66385#(and (not (= main_x main_y)) (<= main_a_x 81)), 66384#(and (not (= main_x main_y)) (<= main_a_x 80)), 66387#(and (not (= main_x main_y)) (<= main_a_x 83)), 66386#(and (not (= main_x main_y)) (<= main_a_x 82)), 66389#(and (not (= main_x main_y)) (<= main_a_x 85)), 66388#(and (<= main_a_x 84) (not (= main_x main_y))), 66391#(and (<= main_a_x 87) (not (= main_x main_y))), 66390#(and (not (= main_x main_y)) (<= main_a_x 86)), 66393#(and (<= main_a_x 89) (not (= main_x main_y))), 66392#(and (not (= main_x main_y)) (<= main_a_x 88)), 66395#(and (<= main_a_x 91) (not (= main_x main_y))), 66394#(and (not (= main_x main_y)) (<= main_a_x 90)), 66397#(and (not (= main_x main_y)) (<= main_a_x 93)), 66396#(and (not (= main_x main_y)) (<= main_a_x 92)), 66399#(and (<= main_a_x 95) (not (= main_x main_y))), 66398#(and (<= main_a_x 94) (not (= main_x main_y))), 66401#(and (<= main_a_x 97) (not (= main_x main_y))), 66400#(and (not (= main_x main_y)) (<= main_a_x 96)), 66403#(and (<= main_a_x 99) (not (= main_x main_y))), 66402#(and (not (= main_x main_y)) (<= main_a_x 98)), 66405#(and (not (= main_x main_y)) (<= main_a_x 101)), 66404#(and (<= main_a_x 100) (not (= main_x main_y))), 66407#(and (not (= main_x main_y)) (<= main_a_x 103)), 66406#(and (not (= main_x main_y)) (<= main_a_x 102)), 66409#(and (<= main_a_x 105) (not (= main_x main_y))), 66408#(and (<= main_a_x 104) (not (= main_x main_y))), 66411#(and (not (= main_x main_y)) (<= main_a_x 107)), 66410#(and (not (= main_x main_y)) (<= main_a_x 106)), 66413#(and (not (= main_x main_y)) (<= main_a_x 109)), 66412#(and (not (= main_x main_y)) (<= main_a_x 108)), 66415#(and (not (= main_x main_y)) (<= main_a_x 111)), 66414#(and (<= main_a_x 110) (not (= main_x main_y))), 66417#(and (<= main_a_x 113) (not (= main_x main_y))), 66416#(and (<= main_a_x 112) (not (= main_x main_y))), 66419#(and (not (= main_x main_y)) (<= main_a_x 115)), 66418#(and (not (= main_x main_y)) (<= main_a_x 114)), 66421#(and (<= main_a_x 117) (not (= main_x main_y))), 66420#(and (not (= main_x main_y)) (<= main_a_x 116)), 66423#(and (not (= main_x main_y)) (<= main_a_x 119)), 66422#(and (not (= main_x main_y)) (<= main_a_x 118)), 66425#(and (not (= main_x main_y)) (<= main_a_x 121)), 66424#(and (not (= main_x main_y)) (<= main_a_x 120)), 66427#(and (<= main_a_x 123) (not (= main_x main_y))), 66426#(and (not (= main_x main_y)) (<= main_a_x 122)), 66429#(and (not (= main_x main_y)) (<= main_a_x 125)), 66428#(and (not (= main_x main_y)) (<= main_a_x 124)), 66431#(and (not (= main_x main_y)) (<= main_a_x 127)), 66430#(and (not (= main_x main_y)) (<= main_a_x 126)), 66433#(and (<= main_a_x 129) (not (= main_x main_y))), 66432#(and (<= main_a_x 128) (not (= main_x main_y))), 66435#(and (not (= main_x main_y)) (<= main_a_x 131)), 66434#(and (not (= main_x main_y)) (<= main_a_x 130)), 66437#(and (not (= main_x main_y)) (<= main_a_x 133)), 66436#(and (not (= main_x main_y)) (<= main_a_x 132)), 66439#(and (<= main_a_x 135) (not (= main_x main_y))), 66438#(and (not (= main_x main_y)) (<= main_a_x 134)), 66441#(and (not (= main_x main_y)) (<= main_a_x 137)), 66440#(and (<= main_a_x 136) (not (= main_x main_y))), 66443#(and (not (= main_x main_y)) (<= main_a_x 139)), 66442#(and (not (= main_x main_y)) (<= main_a_x 138)), 66445#(and (<= main_a_x 141) (not (= main_x main_y))), 66444#(and (<= main_a_x 140) (not (= main_x main_y))), 66447#(and (<= main_a_x 143) (not (= main_x main_y))), 66446#(and (not (= main_x main_y)) (<= main_a_x 142)), 66449#(and (not (= main_x main_y)) (<= main_a_x 145)), 66448#(and (<= main_a_x 144) (not (= main_x main_y))), 66451#(and (not (= main_x main_y)) (<= main_a_x 147)), 66450#(and (<= main_a_x 146) (not (= main_x main_y))), 66453#(and (not (= main_x main_y)) (<= main_a_x 149)), 66452#(and (<= main_a_x 148) (not (= main_x main_y))), 66455#(and (<= main_a_x 151) (not (= main_x main_y))), 66454#(and (not (= main_x main_y)) (<= main_a_x 150)), 66457#(and (not (= main_x main_y)) (<= main_a_x 153)), 66456#(and (not (= main_x main_y)) (<= main_a_x 152)), 66459#(and (not (= main_x main_y)) (<= main_a_x 155)), 66458#(and (<= main_a_x 154) (not (= main_x main_y))), 66461#(and (<= main_a_x 157) (not (= main_x main_y))), 66460#(and (<= main_a_x 156) (not (= main_x main_y))), 66462#(<= main_a_x 158), 66303#false, 66302#true] [2018-07-23 13:54:51,990 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 13:54:51,991 INFO L450 AbstractCegarLoop]: Interpolant automaton has 161 states [2018-07-23 13:54:51,993 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 161 interpolants. [2018-07-23 13:54:51,993 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12880, Invalid=12880, Unknown=0, NotChecked=0, Total=25760 [2018-07-23 13:54:51,994 INFO L87 Difference]: Start difference. First operand 162 states and 162 transitions. Second operand 161 states. [2018-07-23 13:54:52,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:52,652 INFO L93 Difference]: Finished difference Result 165 states and 165 transitions. [2018-07-23 13:54:52,652 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 161 states. [2018-07-23 13:54:52,652 INFO L78 Accepts]: Start accepts. Automaton has 161 states. Word has length 161 [2018-07-23 13:54:52,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:52,652 INFO L225 Difference]: With dead ends: 165 [2018-07-23 13:54:52,652 INFO L226 Difference]: Without dead ends: 163 [2018-07-23 13:54:52,654 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=12880, Invalid=12880, Unknown=0, NotChecked=0, Total=25760 [2018-07-23 13:54:52,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2018-07-23 13:54:52,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2018-07-23 13:54:52,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2018-07-23 13:54:52,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 163 transitions. [2018-07-23 13:54:52,659 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 163 transitions. Word has length 161 [2018-07-23 13:54:52,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:52,659 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 163 transitions. [2018-07-23 13:54:52,659 INFO L472 AbstractCegarLoop]: Interpolant automaton has 161 states. [2018-07-23 13:54:52,660 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 163 transitions. [2018-07-23 13:54:52,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2018-07-23 13:54:52,660 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:52,660 INFO L357 BasicCegarLoop]: trace histogram [159, 1, 1, 1] [2018-07-23 13:54:52,660 INFO L414 AbstractCegarLoop]: === Iteration 160 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:52,661 INFO L82 PathProgramCache]: Analyzing trace with hash 1378236743, now seen corresponding path program 159 times [2018-07-23 13:54:52,661 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:53,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:55,392 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 13:54:55,393 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:55,393 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [161] total 161 [2018-07-23 13:54:55,393 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:55,393 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 13:54:55,394 INFO L185 omatonBuilderFactory]: Interpolants [67119#true, 67121#(and (not (= main_x main_y)) (<= main_a_x 0)), 67120#false, 67123#(and (not (= main_x main_y)) (<= main_a_x 2)), 67122#(and (not (= main_x main_y)) (<= main_a_x 1)), 67125#(and (<= main_a_x 4) (not (= main_x main_y))), 67124#(and (not (= main_x main_y)) (<= main_a_x 3)), 67127#(and (not (= main_x main_y)) (<= main_a_x 6)), 67126#(and (<= main_a_x 5) (not (= main_x main_y))), 67129#(and (not (= main_x main_y)) (<= main_a_x 8)), 67128#(and (<= main_a_x 7) (not (= main_x main_y))), 67131#(and (<= main_a_x 10) (not (= main_x main_y))), 67130#(and (not (= main_x main_y)) (<= main_a_x 9)), 67133#(and (not (= main_x main_y)) (<= main_a_x 12)), 67132#(and (not (= main_x main_y)) (<= main_a_x 11)), 67135#(and (not (= main_x main_y)) (<= main_a_x 14)), 67134#(and (<= main_a_x 13) (not (= main_x main_y))), 67137#(and (not (= main_x main_y)) (<= main_a_x 16)), 67136#(and (<= main_a_x 15) (not (= main_x main_y))), 67139#(and (<= main_a_x 18) (not (= main_x main_y))), 67138#(and (not (= main_x main_y)) (<= main_a_x 17)), 67141#(and (not (= main_x main_y)) (<= main_a_x 20)), 67140#(and (<= main_a_x 19) (not (= main_x main_y))), 67143#(and (not (= main_x main_y)) (<= main_a_x 22)), 67142#(and (not (= main_x main_y)) (<= main_a_x 21)), 67145#(and (not (= main_x main_y)) (<= main_a_x 24)), 67144#(and (<= main_a_x 23) (not (= main_x main_y))), 67147#(and (not (= main_x main_y)) (<= main_a_x 26)), 67146#(and (<= main_a_x 25) (not (= main_x main_y))), 67149#(and (not (= main_x main_y)) (<= main_a_x 28)), 67148#(and (not (= main_x main_y)) (<= main_a_x 27)), 67151#(and (<= main_a_x 30) (not (= main_x main_y))), 67150#(and (not (= main_x main_y)) (<= main_a_x 29)), 67153#(and (not (= main_x main_y)) (<= main_a_x 32)), 67152#(and (<= main_a_x 31) (not (= main_x main_y))), 67155#(and (not (= main_x main_y)) (<= main_a_x 34)), 67154#(and (not (= main_x main_y)) (<= main_a_x 33)), 67157#(and (not (= main_x main_y)) (<= main_a_x 36)), 67156#(and (<= main_a_x 35) (not (= main_x main_y))), 67159#(and (not (= main_x main_y)) (<= main_a_x 38)), 67158#(and (<= main_a_x 37) (not (= main_x main_y))), 67161#(and (<= main_a_x 40) (not (= main_x main_y))), 67160#(and (<= main_a_x 39) (not (= main_x main_y))), 67163#(and (not (= main_x main_y)) (<= main_a_x 42)), 67162#(and (not (= main_x main_y)) (<= main_a_x 41)), 67165#(and (<= main_a_x 44) (not (= main_x main_y))), 67164#(and (<= main_a_x 43) (not (= main_x main_y))), 67167#(and (<= main_a_x 46) (not (= main_x main_y))), 67166#(and (<= main_a_x 45) (not (= main_x main_y))), 67169#(and (<= main_a_x 48) (not (= main_x main_y))), 67168#(and (<= main_a_x 47) (not (= main_x main_y))), 67171#(and (not (= main_x main_y)) (<= main_a_x 50)), 67170#(and (not (= main_x main_y)) (<= main_a_x 49)), 67173#(and (not (= main_x main_y)) (<= main_a_x 52)), 67172#(and (<= main_a_x 51) (not (= main_x main_y))), 67175#(and (<= main_a_x 54) (not (= main_x main_y))), 67174#(and (<= main_a_x 53) (not (= main_x main_y))), 67177#(and (not (= main_x main_y)) (<= main_a_x 56)), 67176#(and (not (= main_x main_y)) (<= main_a_x 55)), 67179#(and (not (= main_x main_y)) (<= main_a_x 58)), 67178#(and (not (= main_x main_y)) (<= main_a_x 57)), 67181#(and (<= main_a_x 60) (not (= main_x main_y))), 67180#(and (not (= main_x main_y)) (<= main_a_x 59)), 67183#(and (not (= main_x main_y)) (<= main_a_x 62)), 67182#(and (not (= main_x main_y)) (<= main_a_x 61)), 67185#(and (<= main_a_x 64) (not (= main_x main_y))), 67184#(and (<= main_a_x 63) (not (= main_x main_y))), 67187#(and (<= main_a_x 66) (not (= main_x main_y))), 67186#(and (<= main_a_x 65) (not (= main_x main_y))), 67189#(and (not (= main_x main_y)) (<= main_a_x 68)), 67188#(and (<= main_a_x 67) (not (= main_x main_y))), 67191#(and (<= main_a_x 70) (not (= main_x main_y))), 67190#(and (<= main_a_x 69) (not (= main_x main_y))), 67193#(and (not (= main_x main_y)) (<= main_a_x 72)), 67192#(and (<= main_a_x 71) (not (= main_x main_y))), 67195#(and (<= main_a_x 74) (not (= main_x main_y))), 67194#(and (not (= main_x main_y)) (<= main_a_x 73)), 67197#(and (not (= main_x main_y)) (<= main_a_x 76)), 67196#(and (<= main_a_x 75) (not (= main_x main_y))), 67199#(and (<= main_a_x 78) (not (= main_x main_y))), 67198#(and (not (= main_x main_y)) (<= main_a_x 77)), 67201#(and (not (= main_x main_y)) (<= main_a_x 80)), 67200#(and (<= main_a_x 79) (not (= main_x main_y))), 67203#(and (not (= main_x main_y)) (<= main_a_x 82)), 67202#(and (not (= main_x main_y)) (<= main_a_x 81)), 67205#(and (<= main_a_x 84) (not (= main_x main_y))), 67204#(and (not (= main_x main_y)) (<= main_a_x 83)), 67207#(and (not (= main_x main_y)) (<= main_a_x 86)), 67206#(and (not (= main_x main_y)) (<= main_a_x 85)), 67209#(and (not (= main_x main_y)) (<= main_a_x 88)), 67208#(and (<= main_a_x 87) (not (= main_x main_y))), 67211#(and (not (= main_x main_y)) (<= main_a_x 90)), 67210#(and (<= main_a_x 89) (not (= main_x main_y))), 67213#(and (not (= main_x main_y)) (<= main_a_x 92)), 67212#(and (<= main_a_x 91) (not (= main_x main_y))), 67215#(and (<= main_a_x 94) (not (= main_x main_y))), 67214#(and (not (= main_x main_y)) (<= main_a_x 93)), 67217#(and (not (= main_x main_y)) (<= main_a_x 96)), 67216#(and (<= main_a_x 95) (not (= main_x main_y))), 67219#(and (not (= main_x main_y)) (<= main_a_x 98)), 67218#(and (<= main_a_x 97) (not (= main_x main_y))), 67221#(and (<= main_a_x 100) (not (= main_x main_y))), 67220#(and (<= main_a_x 99) (not (= main_x main_y))), 67223#(and (not (= main_x main_y)) (<= main_a_x 102)), 67222#(and (not (= main_x main_y)) (<= main_a_x 101)), 67225#(and (<= main_a_x 104) (not (= main_x main_y))), 67224#(and (not (= main_x main_y)) (<= main_a_x 103)), 67227#(and (not (= main_x main_y)) (<= main_a_x 106)), 67226#(and (<= main_a_x 105) (not (= main_x main_y))), 67229#(and (not (= main_x main_y)) (<= main_a_x 108)), 67228#(and (not (= main_x main_y)) (<= main_a_x 107)), 67231#(and (<= main_a_x 110) (not (= main_x main_y))), 67230#(and (not (= main_x main_y)) (<= main_a_x 109)), 67233#(and (<= main_a_x 112) (not (= main_x main_y))), 67232#(and (not (= main_x main_y)) (<= main_a_x 111)), 67235#(and (not (= main_x main_y)) (<= main_a_x 114)), 67234#(and (<= main_a_x 113) (not (= main_x main_y))), 67237#(and (not (= main_x main_y)) (<= main_a_x 116)), 67236#(and (not (= main_x main_y)) (<= main_a_x 115)), 67239#(and (not (= main_x main_y)) (<= main_a_x 118)), 67238#(and (<= main_a_x 117) (not (= main_x main_y))), 67241#(and (not (= main_x main_y)) (<= main_a_x 120)), 67240#(and (not (= main_x main_y)) (<= main_a_x 119)), 67243#(and (not (= main_x main_y)) (<= main_a_x 122)), 67242#(and (not (= main_x main_y)) (<= main_a_x 121)), 67245#(and (not (= main_x main_y)) (<= main_a_x 124)), 67244#(and (<= main_a_x 123) (not (= main_x main_y))), 67247#(and (not (= main_x main_y)) (<= main_a_x 126)), 67246#(and (not (= main_x main_y)) (<= main_a_x 125)), 67249#(and (<= main_a_x 128) (not (= main_x main_y))), 67248#(and (not (= main_x main_y)) (<= main_a_x 127)), 67251#(and (not (= main_x main_y)) (<= main_a_x 130)), 67250#(and (<= main_a_x 129) (not (= main_x main_y))), 67253#(and (not (= main_x main_y)) (<= main_a_x 132)), 67252#(and (not (= main_x main_y)) (<= main_a_x 131)), 67255#(and (not (= main_x main_y)) (<= main_a_x 134)), 67254#(and (not (= main_x main_y)) (<= main_a_x 133)), 67257#(and (<= main_a_x 136) (not (= main_x main_y))), 67256#(and (<= main_a_x 135) (not (= main_x main_y))), 67259#(and (not (= main_x main_y)) (<= main_a_x 138)), 67258#(and (not (= main_x main_y)) (<= main_a_x 137)), 67261#(and (<= main_a_x 140) (not (= main_x main_y))), 67260#(and (not (= main_x main_y)) (<= main_a_x 139)), 67263#(and (not (= main_x main_y)) (<= main_a_x 142)), 67262#(and (<= main_a_x 141) (not (= main_x main_y))), 67265#(and (<= main_a_x 144) (not (= main_x main_y))), 67264#(and (<= main_a_x 143) (not (= main_x main_y))), 67267#(and (<= main_a_x 146) (not (= main_x main_y))), 67266#(and (not (= main_x main_y)) (<= main_a_x 145)), 67269#(and (<= main_a_x 148) (not (= main_x main_y))), 67268#(and (not (= main_x main_y)) (<= main_a_x 147)), 67271#(and (not (= main_x main_y)) (<= main_a_x 150)), 67270#(and (not (= main_x main_y)) (<= main_a_x 149)), 67273#(and (not (= main_x main_y)) (<= main_a_x 152)), 67272#(and (<= main_a_x 151) (not (= main_x main_y))), 67275#(and (<= main_a_x 154) (not (= main_x main_y))), 67274#(and (not (= main_x main_y)) (<= main_a_x 153)), 67277#(and (<= main_a_x 156) (not (= main_x main_y))), 67276#(and (not (= main_x main_y)) (<= main_a_x 155)), 67279#(and (<= main_a_x 158) (not (= main_x main_y))), 67278#(and (<= main_a_x 157) (not (= main_x main_y))), 67280#(<= main_a_x 159)] [2018-07-23 13:54:55,394 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 13:54:55,394 INFO L450 AbstractCegarLoop]: Interpolant automaton has 162 states [2018-07-23 13:54:55,396 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 162 interpolants. [2018-07-23 13:54:55,397 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13041, Invalid=13041, Unknown=0, NotChecked=0, Total=26082 [2018-07-23 13:54:55,397 INFO L87 Difference]: Start difference. First operand 163 states and 163 transitions. Second operand 162 states. [2018-07-23 13:54:55,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:55,867 INFO L93 Difference]: Finished difference Result 166 states and 166 transitions. [2018-07-23 13:54:55,867 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 162 states. [2018-07-23 13:54:55,867 INFO L78 Accepts]: Start accepts. Automaton has 162 states. Word has length 162 [2018-07-23 13:54:55,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:55,868 INFO L225 Difference]: With dead ends: 166 [2018-07-23 13:54:55,868 INFO L226 Difference]: Without dead ends: 164 [2018-07-23 13:54:55,869 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 160 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=13041, Invalid=13041, Unknown=0, NotChecked=0, Total=26082 [2018-07-23 13:54:55,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2018-07-23 13:54:55,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2018-07-23 13:54:55,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2018-07-23 13:54:55,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 164 transitions. [2018-07-23 13:54:55,873 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 164 transitions. Word has length 162 [2018-07-23 13:54:55,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:55,874 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 164 transitions. [2018-07-23 13:54:55,874 INFO L472 AbstractCegarLoop]: Interpolant automaton has 162 states. [2018-07-23 13:54:55,874 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 164 transitions. [2018-07-23 13:54:55,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2018-07-23 13:54:55,874 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:55,874 INFO L357 BasicCegarLoop]: trace histogram [160, 1, 1, 1] [2018-07-23 13:54:55,874 INFO L414 AbstractCegarLoop]: === Iteration 161 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:55,874 INFO L82 PathProgramCache]: Analyzing trace with hash -224318548, now seen corresponding path program 160 times [2018-07-23 13:54:55,875 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:56,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:58,857 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 13:54:58,857 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:58,857 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [162] total 162 [2018-07-23 13:54:58,858 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:58,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:58,858 INFO L185 omatonBuilderFactory]: Interpolants [68097#(and (<= main_a_x 154) (not (= main_x main_y))), 68096#(and (not (= main_x main_y)) (<= main_a_x 153)), 68099#(and (<= main_a_x 156) (not (= main_x main_y))), 68098#(and (not (= main_x main_y)) (<= main_a_x 155)), 68101#(and (<= main_a_x 158) (not (= main_x main_y))), 68100#(and (<= main_a_x 157) (not (= main_x main_y))), 68103#(<= main_a_x 160), 68102#(and (<= main_a_x 159) (not (= main_x main_y))), 67941#true, 67943#(and (not (= main_x main_y)) (<= main_a_x 0)), 67942#false, 67945#(and (not (= main_x main_y)) (<= main_a_x 2)), 67944#(and (not (= main_x main_y)) (<= main_a_x 1)), 67947#(and (<= main_a_x 4) (not (= main_x main_y))), 67946#(and (not (= main_x main_y)) (<= main_a_x 3)), 67949#(and (not (= main_x main_y)) (<= main_a_x 6)), 67948#(and (<= main_a_x 5) (not (= main_x main_y))), 67951#(and (not (= main_x main_y)) (<= main_a_x 8)), 67950#(and (<= main_a_x 7) (not (= main_x main_y))), 67953#(and (<= main_a_x 10) (not (= main_x main_y))), 67952#(and (not (= main_x main_y)) (<= main_a_x 9)), 67955#(and (not (= main_x main_y)) (<= main_a_x 12)), 67954#(and (not (= main_x main_y)) (<= main_a_x 11)), 67957#(and (not (= main_x main_y)) (<= main_a_x 14)), 67956#(and (<= main_a_x 13) (not (= main_x main_y))), 67959#(and (not (= main_x main_y)) (<= main_a_x 16)), 67958#(and (<= main_a_x 15) (not (= main_x main_y))), 67961#(and (<= main_a_x 18) (not (= main_x main_y))), 67960#(and (not (= main_x main_y)) (<= main_a_x 17)), 67963#(and (not (= main_x main_y)) (<= main_a_x 20)), 67962#(and (<= main_a_x 19) (not (= main_x main_y))), 67965#(and (not (= main_x main_y)) (<= main_a_x 22)), 67964#(and (not (= main_x main_y)) (<= main_a_x 21)), 67967#(and (not (= main_x main_y)) (<= main_a_x 24)), 67966#(and (<= main_a_x 23) (not (= main_x main_y))), 67969#(and (not (= main_x main_y)) (<= main_a_x 26)), 67968#(and (<= main_a_x 25) (not (= main_x main_y))), 67971#(and (not (= main_x main_y)) (<= main_a_x 28)), 67970#(and (not (= main_x main_y)) (<= main_a_x 27)), 67973#(and (<= main_a_x 30) (not (= main_x main_y))), 67972#(and (not (= main_x main_y)) (<= main_a_x 29)), 67975#(and (not (= main_x main_y)) (<= main_a_x 32)), 67974#(and (<= main_a_x 31) (not (= main_x main_y))), 67977#(and (not (= main_x main_y)) (<= main_a_x 34)), 67976#(and (not (= main_x main_y)) (<= main_a_x 33)), 67979#(and (not (= main_x main_y)) (<= main_a_x 36)), 67978#(and (<= main_a_x 35) (not (= main_x main_y))), 67981#(and (not (= main_x main_y)) (<= main_a_x 38)), 67980#(and (<= main_a_x 37) (not (= main_x main_y))), 67983#(and (<= main_a_x 40) (not (= main_x main_y))), 67982#(and (<= main_a_x 39) (not (= main_x main_y))), 67985#(and (not (= main_x main_y)) (<= main_a_x 42)), 67984#(and (not (= main_x main_y)) (<= main_a_x 41)), 67987#(and (<= main_a_x 44) (not (= main_x main_y))), 67986#(and (<= main_a_x 43) (not (= main_x main_y))), 67989#(and (<= main_a_x 46) (not (= main_x main_y))), 67988#(and (<= main_a_x 45) (not (= main_x main_y))), 67991#(and (<= main_a_x 48) (not (= main_x main_y))), 67990#(and (<= main_a_x 47) (not (= main_x main_y))), 67993#(and (not (= main_x main_y)) (<= main_a_x 50)), 67992#(and (not (= main_x main_y)) (<= main_a_x 49)), 67995#(and (not (= main_x main_y)) (<= main_a_x 52)), 67994#(and (<= main_a_x 51) (not (= main_x main_y))), 67997#(and (<= main_a_x 54) (not (= main_x main_y))), 67996#(and (<= main_a_x 53) (not (= main_x main_y))), 67999#(and (not (= main_x main_y)) (<= main_a_x 56)), 67998#(and (not (= main_x main_y)) (<= main_a_x 55)), 68001#(and (not (= main_x main_y)) (<= main_a_x 58)), 68000#(and (not (= main_x main_y)) (<= main_a_x 57)), 68003#(and (<= main_a_x 60) (not (= main_x main_y))), 68002#(and (not (= main_x main_y)) (<= main_a_x 59)), 68005#(and (not (= main_x main_y)) (<= main_a_x 62)), 68004#(and (not (= main_x main_y)) (<= main_a_x 61)), 68007#(and (<= main_a_x 64) (not (= main_x main_y))), 68006#(and (<= main_a_x 63) (not (= main_x main_y))), 68009#(and (<= main_a_x 66) (not (= main_x main_y))), 68008#(and (<= main_a_x 65) (not (= main_x main_y))), 68011#(and (not (= main_x main_y)) (<= main_a_x 68)), 68010#(and (<= main_a_x 67) (not (= main_x main_y))), 68013#(and (<= main_a_x 70) (not (= main_x main_y))), 68012#(and (<= main_a_x 69) (not (= main_x main_y))), 68015#(and (not (= main_x main_y)) (<= main_a_x 72)), 68014#(and (<= main_a_x 71) (not (= main_x main_y))), 68017#(and (<= main_a_x 74) (not (= main_x main_y))), 68016#(and (not (= main_x main_y)) (<= main_a_x 73)), 68019#(and (not (= main_x main_y)) (<= main_a_x 76)), 68018#(and (<= main_a_x 75) (not (= main_x main_y))), 68021#(and (<= main_a_x 78) (not (= main_x main_y))), 68020#(and (not (= main_x main_y)) (<= main_a_x 77)), 68023#(and (not (= main_x main_y)) (<= main_a_x 80)), 68022#(and (<= main_a_x 79) (not (= main_x main_y))), 68025#(and (not (= main_x main_y)) (<= main_a_x 82)), 68024#(and (not (= main_x main_y)) (<= main_a_x 81)), 68027#(and (<= main_a_x 84) (not (= main_x main_y))), 68026#(and (not (= main_x main_y)) (<= main_a_x 83)), 68029#(and (not (= main_x main_y)) (<= main_a_x 86)), 68028#(and (not (= main_x main_y)) (<= main_a_x 85)), 68031#(and (not (= main_x main_y)) (<= main_a_x 88)), 68030#(and (<= main_a_x 87) (not (= main_x main_y))), 68033#(and (not (= main_x main_y)) (<= main_a_x 90)), 68032#(and (<= main_a_x 89) (not (= main_x main_y))), 68035#(and (not (= main_x main_y)) (<= main_a_x 92)), 68034#(and (<= main_a_x 91) (not (= main_x main_y))), 68037#(and (<= main_a_x 94) (not (= main_x main_y))), 68036#(and (not (= main_x main_y)) (<= main_a_x 93)), 68039#(and (not (= main_x main_y)) (<= main_a_x 96)), 68038#(and (<= main_a_x 95) (not (= main_x main_y))), 68041#(and (not (= main_x main_y)) (<= main_a_x 98)), 68040#(and (<= main_a_x 97) (not (= main_x main_y))), 68043#(and (<= main_a_x 100) (not (= main_x main_y))), 68042#(and (<= main_a_x 99) (not (= main_x main_y))), 68045#(and (not (= main_x main_y)) (<= main_a_x 102)), 68044#(and (not (= main_x main_y)) (<= main_a_x 101)), 68047#(and (<= main_a_x 104) (not (= main_x main_y))), 68046#(and (not (= main_x main_y)) (<= main_a_x 103)), 68049#(and (not (= main_x main_y)) (<= main_a_x 106)), 68048#(and (<= main_a_x 105) (not (= main_x main_y))), 68051#(and (not (= main_x main_y)) (<= main_a_x 108)), 68050#(and (not (= main_x main_y)) (<= main_a_x 107)), 68053#(and (<= main_a_x 110) (not (= main_x main_y))), 68052#(and (not (= main_x main_y)) (<= main_a_x 109)), 68055#(and (<= main_a_x 112) (not (= main_x main_y))), 68054#(and (not (= main_x main_y)) (<= main_a_x 111)), 68057#(and (not (= main_x main_y)) (<= main_a_x 114)), 68056#(and (<= main_a_x 113) (not (= main_x main_y))), 68059#(and (not (= main_x main_y)) (<= main_a_x 116)), 68058#(and (not (= main_x main_y)) (<= main_a_x 115)), 68061#(and (not (= main_x main_y)) (<= main_a_x 118)), 68060#(and (<= main_a_x 117) (not (= main_x main_y))), 68063#(and (not (= main_x main_y)) (<= main_a_x 120)), 68062#(and (not (= main_x main_y)) (<= main_a_x 119)), 68065#(and (not (= main_x main_y)) (<= main_a_x 122)), 68064#(and (not (= main_x main_y)) (<= main_a_x 121)), 68067#(and (not (= main_x main_y)) (<= main_a_x 124)), 68066#(and (<= main_a_x 123) (not (= main_x main_y))), 68069#(and (not (= main_x main_y)) (<= main_a_x 126)), 68068#(and (not (= main_x main_y)) (<= main_a_x 125)), 68071#(and (<= main_a_x 128) (not (= main_x main_y))), 68070#(and (not (= main_x main_y)) (<= main_a_x 127)), 68073#(and (not (= main_x main_y)) (<= main_a_x 130)), 68072#(and (<= main_a_x 129) (not (= main_x main_y))), 68075#(and (not (= main_x main_y)) (<= main_a_x 132)), 68074#(and (not (= main_x main_y)) (<= main_a_x 131)), 68077#(and (not (= main_x main_y)) (<= main_a_x 134)), 68076#(and (not (= main_x main_y)) (<= main_a_x 133)), 68079#(and (<= main_a_x 136) (not (= main_x main_y))), 68078#(and (<= main_a_x 135) (not (= main_x main_y))), 68081#(and (not (= main_x main_y)) (<= main_a_x 138)), 68080#(and (not (= main_x main_y)) (<= main_a_x 137)), 68083#(and (<= main_a_x 140) (not (= main_x main_y))), 68082#(and (not (= main_x main_y)) (<= main_a_x 139)), 68085#(and (not (= main_x main_y)) (<= main_a_x 142)), 68084#(and (<= main_a_x 141) (not (= main_x main_y))), 68087#(and (<= main_a_x 144) (not (= main_x main_y))), 68086#(and (<= main_a_x 143) (not (= main_x main_y))), 68089#(and (<= main_a_x 146) (not (= main_x main_y))), 68088#(and (not (= main_x main_y)) (<= main_a_x 145)), 68091#(and (<= main_a_x 148) (not (= main_x main_y))), 68090#(and (not (= main_x main_y)) (<= main_a_x 147)), 68093#(and (not (= main_x main_y)) (<= main_a_x 150)), 68092#(and (not (= main_x main_y)) (<= main_a_x 149)), 68095#(and (not (= main_x main_y)) (<= main_a_x 152)), 68094#(and (<= main_a_x 151) (not (= main_x main_y)))] [2018-07-23 13:54:58,859 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 13:54:58,859 INFO L450 AbstractCegarLoop]: Interpolant automaton has 163 states [2018-07-23 13:54:58,860 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 163 interpolants. [2018-07-23 13:54:58,861 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13203, Invalid=13203, Unknown=0, NotChecked=0, Total=26406 [2018-07-23 13:54:58,861 INFO L87 Difference]: Start difference. First operand 164 states and 164 transitions. Second operand 163 states. [2018-07-23 13:54:59,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:59,267 INFO L93 Difference]: Finished difference Result 167 states and 167 transitions. [2018-07-23 13:54:59,267 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 163 states. [2018-07-23 13:54:59,267 INFO L78 Accepts]: Start accepts. Automaton has 163 states. Word has length 163 [2018-07-23 13:54:59,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:59,267 INFO L225 Difference]: With dead ends: 167 [2018-07-23 13:54:59,268 INFO L226 Difference]: Without dead ends: 165 [2018-07-23 13:54:59,269 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=13203, Invalid=13203, Unknown=0, NotChecked=0, Total=26406 [2018-07-23 13:54:59,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2018-07-23 13:54:59,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2018-07-23 13:54:59,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2018-07-23 13:54:59,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 165 transitions. [2018-07-23 13:54:59,273 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 165 transitions. Word has length 163 [2018-07-23 13:54:59,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:59,273 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 165 transitions. [2018-07-23 13:54:59,273 INFO L472 AbstractCegarLoop]: Interpolant automaton has 163 states. [2018-07-23 13:54:59,273 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 165 transitions. [2018-07-23 13:54:59,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2018-07-23 13:54:59,273 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:59,274 INFO L357 BasicCegarLoop]: trace histogram [161, 1, 1, 1] [2018-07-23 13:54:59,274 INFO L414 AbstractCegarLoop]: === Iteration 162 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:59,274 INFO L82 PathProgramCache]: Analyzing trace with hash 1636074983, now seen corresponding path program 161 times [2018-07-23 13:54:59,274 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:00,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:02,361 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 13:55:02,361 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:02,362 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [163] total 163 [2018-07-23 13:55:02,362 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:02,362 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 13:55:02,362 INFO L185 omatonBuilderFactory]: Interpolants [68865#(and (<= main_a_x 95) (not (= main_x main_y))), 68864#(and (<= main_a_x 94) (not (= main_x main_y))), 68867#(and (<= main_a_x 97) (not (= main_x main_y))), 68866#(and (not (= main_x main_y)) (<= main_a_x 96)), 68869#(and (<= main_a_x 99) (not (= main_x main_y))), 68868#(and (not (= main_x main_y)) (<= main_a_x 98)), 68871#(and (not (= main_x main_y)) (<= main_a_x 101)), 68870#(and (<= main_a_x 100) (not (= main_x main_y))), 68873#(and (not (= main_x main_y)) (<= main_a_x 103)), 68872#(and (not (= main_x main_y)) (<= main_a_x 102)), 68875#(and (<= main_a_x 105) (not (= main_x main_y))), 68874#(and (<= main_a_x 104) (not (= main_x main_y))), 68877#(and (not (= main_x main_y)) (<= main_a_x 107)), 68876#(and (not (= main_x main_y)) (<= main_a_x 106)), 68879#(and (not (= main_x main_y)) (<= main_a_x 109)), 68878#(and (not (= main_x main_y)) (<= main_a_x 108)), 68881#(and (not (= main_x main_y)) (<= main_a_x 111)), 68880#(and (<= main_a_x 110) (not (= main_x main_y))), 68883#(and (<= main_a_x 113) (not (= main_x main_y))), 68882#(and (<= main_a_x 112) (not (= main_x main_y))), 68885#(and (not (= main_x main_y)) (<= main_a_x 115)), 68884#(and (not (= main_x main_y)) (<= main_a_x 114)), 68887#(and (<= main_a_x 117) (not (= main_x main_y))), 68886#(and (not (= main_x main_y)) (<= main_a_x 116)), 68889#(and (not (= main_x main_y)) (<= main_a_x 119)), 68888#(and (not (= main_x main_y)) (<= main_a_x 118)), 68891#(and (not (= main_x main_y)) (<= main_a_x 121)), 68890#(and (not (= main_x main_y)) (<= main_a_x 120)), 68893#(and (<= main_a_x 123) (not (= main_x main_y))), 68892#(and (not (= main_x main_y)) (<= main_a_x 122)), 68895#(and (not (= main_x main_y)) (<= main_a_x 125)), 68894#(and (not (= main_x main_y)) (<= main_a_x 124)), 68897#(and (not (= main_x main_y)) (<= main_a_x 127)), 68896#(and (not (= main_x main_y)) (<= main_a_x 126)), 68899#(and (<= main_a_x 129) (not (= main_x main_y))), 68898#(and (<= main_a_x 128) (not (= main_x main_y))), 68901#(and (not (= main_x main_y)) (<= main_a_x 131)), 68900#(and (not (= main_x main_y)) (<= main_a_x 130)), 68903#(and (not (= main_x main_y)) (<= main_a_x 133)), 68902#(and (not (= main_x main_y)) (<= main_a_x 132)), 68905#(and (<= main_a_x 135) (not (= main_x main_y))), 68904#(and (not (= main_x main_y)) (<= main_a_x 134)), 68907#(and (not (= main_x main_y)) (<= main_a_x 137)), 68906#(and (<= main_a_x 136) (not (= main_x main_y))), 68909#(and (not (= main_x main_y)) (<= main_a_x 139)), 68908#(and (not (= main_x main_y)) (<= main_a_x 138)), 68911#(and (<= main_a_x 141) (not (= main_x main_y))), 68910#(and (<= main_a_x 140) (not (= main_x main_y))), 68913#(and (<= main_a_x 143) (not (= main_x main_y))), 68912#(and (not (= main_x main_y)) (<= main_a_x 142)), 68915#(and (not (= main_x main_y)) (<= main_a_x 145)), 68914#(and (<= main_a_x 144) (not (= main_x main_y))), 68917#(and (not (= main_x main_y)) (<= main_a_x 147)), 68916#(and (<= main_a_x 146) (not (= main_x main_y))), 68919#(and (not (= main_x main_y)) (<= main_a_x 149)), 68918#(and (<= main_a_x 148) (not (= main_x main_y))), 68921#(and (<= main_a_x 151) (not (= main_x main_y))), 68920#(and (not (= main_x main_y)) (<= main_a_x 150)), 68923#(and (not (= main_x main_y)) (<= main_a_x 153)), 68922#(and (not (= main_x main_y)) (<= main_a_x 152)), 68925#(and (not (= main_x main_y)) (<= main_a_x 155)), 68924#(and (<= main_a_x 154) (not (= main_x main_y))), 68927#(and (<= main_a_x 157) (not (= main_x main_y))), 68926#(and (<= main_a_x 156) (not (= main_x main_y))), 68929#(and (<= main_a_x 159) (not (= main_x main_y))), 68928#(and (<= main_a_x 158) (not (= main_x main_y))), 68931#(<= main_a_x 161), 68930#(and (<= main_a_x 160) (not (= main_x main_y))), 68769#false, 68768#true, 68771#(and (not (= main_x main_y)) (<= main_a_x 1)), 68770#(and (not (= main_x main_y)) (<= main_a_x 0)), 68773#(and (not (= main_x main_y)) (<= main_a_x 3)), 68772#(and (not (= main_x main_y)) (<= main_a_x 2)), 68775#(and (<= main_a_x 5) (not (= main_x main_y))), 68774#(and (<= main_a_x 4) (not (= main_x main_y))), 68777#(and (<= main_a_x 7) (not (= main_x main_y))), 68776#(and (not (= main_x main_y)) (<= main_a_x 6)), 68779#(and (not (= main_x main_y)) (<= main_a_x 9)), 68778#(and (not (= main_x main_y)) (<= main_a_x 8)), 68781#(and (not (= main_x main_y)) (<= main_a_x 11)), 68780#(and (<= main_a_x 10) (not (= main_x main_y))), 68783#(and (<= main_a_x 13) (not (= main_x main_y))), 68782#(and (not (= main_x main_y)) (<= main_a_x 12)), 68785#(and (<= main_a_x 15) (not (= main_x main_y))), 68784#(and (not (= main_x main_y)) (<= main_a_x 14)), 68787#(and (not (= main_x main_y)) (<= main_a_x 17)), 68786#(and (not (= main_x main_y)) (<= main_a_x 16)), 68789#(and (<= main_a_x 19) (not (= main_x main_y))), 68788#(and (<= main_a_x 18) (not (= main_x main_y))), 68791#(and (not (= main_x main_y)) (<= main_a_x 21)), 68790#(and (not (= main_x main_y)) (<= main_a_x 20)), 68793#(and (<= main_a_x 23) (not (= main_x main_y))), 68792#(and (not (= main_x main_y)) (<= main_a_x 22)), 68795#(and (<= main_a_x 25) (not (= main_x main_y))), 68794#(and (not (= main_x main_y)) (<= main_a_x 24)), 68797#(and (not (= main_x main_y)) (<= main_a_x 27)), 68796#(and (not (= main_x main_y)) (<= main_a_x 26)), 68799#(and (not (= main_x main_y)) (<= main_a_x 29)), 68798#(and (not (= main_x main_y)) (<= main_a_x 28)), 68801#(and (<= main_a_x 31) (not (= main_x main_y))), 68800#(and (<= main_a_x 30) (not (= main_x main_y))), 68803#(and (not (= main_x main_y)) (<= main_a_x 33)), 68802#(and (not (= main_x main_y)) (<= main_a_x 32)), 68805#(and (<= main_a_x 35) (not (= main_x main_y))), 68804#(and (not (= main_x main_y)) (<= main_a_x 34)), 68807#(and (<= main_a_x 37) (not (= main_x main_y))), 68806#(and (not (= main_x main_y)) (<= main_a_x 36)), 68809#(and (<= main_a_x 39) (not (= main_x main_y))), 68808#(and (not (= main_x main_y)) (<= main_a_x 38)), 68811#(and (not (= main_x main_y)) (<= main_a_x 41)), 68810#(and (<= main_a_x 40) (not (= main_x main_y))), 68813#(and (<= main_a_x 43) (not (= main_x main_y))), 68812#(and (not (= main_x main_y)) (<= main_a_x 42)), 68815#(and (<= main_a_x 45) (not (= main_x main_y))), 68814#(and (<= main_a_x 44) (not (= main_x main_y))), 68817#(and (<= main_a_x 47) (not (= main_x main_y))), 68816#(and (<= main_a_x 46) (not (= main_x main_y))), 68819#(and (not (= main_x main_y)) (<= main_a_x 49)), 68818#(and (<= main_a_x 48) (not (= main_x main_y))), 68821#(and (<= main_a_x 51) (not (= main_x main_y))), 68820#(and (not (= main_x main_y)) (<= main_a_x 50)), 68823#(and (<= main_a_x 53) (not (= main_x main_y))), 68822#(and (not (= main_x main_y)) (<= main_a_x 52)), 68825#(and (not (= main_x main_y)) (<= main_a_x 55)), 68824#(and (<= main_a_x 54) (not (= main_x main_y))), 68827#(and (not (= main_x main_y)) (<= main_a_x 57)), 68826#(and (not (= main_x main_y)) (<= main_a_x 56)), 68829#(and (not (= main_x main_y)) (<= main_a_x 59)), 68828#(and (not (= main_x main_y)) (<= main_a_x 58)), 68831#(and (not (= main_x main_y)) (<= main_a_x 61)), 68830#(and (<= main_a_x 60) (not (= main_x main_y))), 68833#(and (<= main_a_x 63) (not (= main_x main_y))), 68832#(and (not (= main_x main_y)) (<= main_a_x 62)), 68835#(and (<= main_a_x 65) (not (= main_x main_y))), 68834#(and (<= main_a_x 64) (not (= main_x main_y))), 68837#(and (<= main_a_x 67) (not (= main_x main_y))), 68836#(and (<= main_a_x 66) (not (= main_x main_y))), 68839#(and (<= main_a_x 69) (not (= main_x main_y))), 68838#(and (not (= main_x main_y)) (<= main_a_x 68)), 68841#(and (<= main_a_x 71) (not (= main_x main_y))), 68840#(and (<= main_a_x 70) (not (= main_x main_y))), 68843#(and (not (= main_x main_y)) (<= main_a_x 73)), 68842#(and (not (= main_x main_y)) (<= main_a_x 72)), 68845#(and (<= main_a_x 75) (not (= main_x main_y))), 68844#(and (<= main_a_x 74) (not (= main_x main_y))), 68847#(and (not (= main_x main_y)) (<= main_a_x 77)), 68846#(and (not (= main_x main_y)) (<= main_a_x 76)), 68849#(and (<= main_a_x 79) (not (= main_x main_y))), 68848#(and (<= main_a_x 78) (not (= main_x main_y))), 68851#(and (not (= main_x main_y)) (<= main_a_x 81)), 68850#(and (not (= main_x main_y)) (<= main_a_x 80)), 68853#(and (not (= main_x main_y)) (<= main_a_x 83)), 68852#(and (not (= main_x main_y)) (<= main_a_x 82)), 68855#(and (not (= main_x main_y)) (<= main_a_x 85)), 68854#(and (<= main_a_x 84) (not (= main_x main_y))), 68857#(and (<= main_a_x 87) (not (= main_x main_y))), 68856#(and (not (= main_x main_y)) (<= main_a_x 86)), 68859#(and (<= main_a_x 89) (not (= main_x main_y))), 68858#(and (not (= main_x main_y)) (<= main_a_x 88)), 68861#(and (<= main_a_x 91) (not (= main_x main_y))), 68860#(and (not (= main_x main_y)) (<= main_a_x 90)), 68863#(and (not (= main_x main_y)) (<= main_a_x 93)), 68862#(and (not (= main_x main_y)) (<= main_a_x 92))] [2018-07-23 13:55:02,363 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 13:55:02,363 INFO L450 AbstractCegarLoop]: Interpolant automaton has 164 states [2018-07-23 13:55:02,364 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 164 interpolants. [2018-07-23 13:55:02,364 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13366, Invalid=13366, Unknown=0, NotChecked=0, Total=26732 [2018-07-23 13:55:02,365 INFO L87 Difference]: Start difference. First operand 165 states and 165 transitions. Second operand 164 states. [2018-07-23 13:55:02,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:02,538 INFO L93 Difference]: Finished difference Result 168 states and 168 transitions. [2018-07-23 13:55:02,538 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 164 states. [2018-07-23 13:55:02,538 INFO L78 Accepts]: Start accepts. Automaton has 164 states. Word has length 164 [2018-07-23 13:55:02,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:02,539 INFO L225 Difference]: With dead ends: 168 [2018-07-23 13:55:02,539 INFO L226 Difference]: Without dead ends: 166 [2018-07-23 13:55:02,540 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 162 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=13366, Invalid=13366, Unknown=0, NotChecked=0, Total=26732 [2018-07-23 13:55:02,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2018-07-23 13:55:02,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2018-07-23 13:55:02,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2018-07-23 13:55:02,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 166 transitions. [2018-07-23 13:55:02,547 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 166 transitions. Word has length 164 [2018-07-23 13:55:02,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:02,547 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 166 transitions. [2018-07-23 13:55:02,548 INFO L472 AbstractCegarLoop]: Interpolant automaton has 164 states. [2018-07-23 13:55:02,548 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 166 transitions. [2018-07-23 13:55:02,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2018-07-23 13:55:02,548 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:02,548 INFO L357 BasicCegarLoop]: trace histogram [162, 1, 1, 1] [2018-07-23 13:55:02,549 INFO L414 AbstractCegarLoop]: === Iteration 163 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:02,549 INFO L82 PathProgramCache]: Analyzing trace with hash -821267700, now seen corresponding path program 162 times [2018-07-23 13:55:02,549 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:03,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:06,028 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 13:55:06,029 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:06,029 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [164] total 164 [2018-07-23 13:55:06,029 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:06,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:06,030 INFO L185 omatonBuilderFactory]: Interpolants [69633#(and (<= main_a_x 31) (not (= main_x main_y))), 69632#(and (<= main_a_x 30) (not (= main_x main_y))), 69635#(and (not (= main_x main_y)) (<= main_a_x 33)), 69634#(and (not (= main_x main_y)) (<= main_a_x 32)), 69637#(and (<= main_a_x 35) (not (= main_x main_y))), 69636#(and (not (= main_x main_y)) (<= main_a_x 34)), 69639#(and (<= main_a_x 37) (not (= main_x main_y))), 69638#(and (not (= main_x main_y)) (<= main_a_x 36)), 69641#(and (<= main_a_x 39) (not (= main_x main_y))), 69640#(and (not (= main_x main_y)) (<= main_a_x 38)), 69643#(and (not (= main_x main_y)) (<= main_a_x 41)), 69642#(and (<= main_a_x 40) (not (= main_x main_y))), 69645#(and (<= main_a_x 43) (not (= main_x main_y))), 69644#(and (not (= main_x main_y)) (<= main_a_x 42)), 69647#(and (<= main_a_x 45) (not (= main_x main_y))), 69646#(and (<= main_a_x 44) (not (= main_x main_y))), 69649#(and (<= main_a_x 47) (not (= main_x main_y))), 69648#(and (<= main_a_x 46) (not (= main_x main_y))), 69651#(and (not (= main_x main_y)) (<= main_a_x 49)), 69650#(and (<= main_a_x 48) (not (= main_x main_y))), 69653#(and (<= main_a_x 51) (not (= main_x main_y))), 69652#(and (not (= main_x main_y)) (<= main_a_x 50)), 69655#(and (<= main_a_x 53) (not (= main_x main_y))), 69654#(and (not (= main_x main_y)) (<= main_a_x 52)), 69657#(and (not (= main_x main_y)) (<= main_a_x 55)), 69656#(and (<= main_a_x 54) (not (= main_x main_y))), 69659#(and (not (= main_x main_y)) (<= main_a_x 57)), 69658#(and (not (= main_x main_y)) (<= main_a_x 56)), 69661#(and (not (= main_x main_y)) (<= main_a_x 59)), 69660#(and (not (= main_x main_y)) (<= main_a_x 58)), 69663#(and (not (= main_x main_y)) (<= main_a_x 61)), 69662#(and (<= main_a_x 60) (not (= main_x main_y))), 69665#(and (<= main_a_x 63) (not (= main_x main_y))), 69664#(and (not (= main_x main_y)) (<= main_a_x 62)), 69667#(and (<= main_a_x 65) (not (= main_x main_y))), 69666#(and (<= main_a_x 64) (not (= main_x main_y))), 69669#(and (<= main_a_x 67) (not (= main_x main_y))), 69668#(and (<= main_a_x 66) (not (= main_x main_y))), 69671#(and (<= main_a_x 69) (not (= main_x main_y))), 69670#(and (not (= main_x main_y)) (<= main_a_x 68)), 69673#(and (<= main_a_x 71) (not (= main_x main_y))), 69672#(and (<= main_a_x 70) (not (= main_x main_y))), 69675#(and (not (= main_x main_y)) (<= main_a_x 73)), 69674#(and (not (= main_x main_y)) (<= main_a_x 72)), 69677#(and (<= main_a_x 75) (not (= main_x main_y))), 69676#(and (<= main_a_x 74) (not (= main_x main_y))), 69679#(and (not (= main_x main_y)) (<= main_a_x 77)), 69678#(and (not (= main_x main_y)) (<= main_a_x 76)), 69681#(and (<= main_a_x 79) (not (= main_x main_y))), 69680#(and (<= main_a_x 78) (not (= main_x main_y))), 69683#(and (not (= main_x main_y)) (<= main_a_x 81)), 69682#(and (not (= main_x main_y)) (<= main_a_x 80)), 69685#(and (not (= main_x main_y)) (<= main_a_x 83)), 69684#(and (not (= main_x main_y)) (<= main_a_x 82)), 69687#(and (not (= main_x main_y)) (<= main_a_x 85)), 69686#(and (<= main_a_x 84) (not (= main_x main_y))), 69689#(and (<= main_a_x 87) (not (= main_x main_y))), 69688#(and (not (= main_x main_y)) (<= main_a_x 86)), 69691#(and (<= main_a_x 89) (not (= main_x main_y))), 69690#(and (not (= main_x main_y)) (<= main_a_x 88)), 69693#(and (<= main_a_x 91) (not (= main_x main_y))), 69692#(and (not (= main_x main_y)) (<= main_a_x 90)), 69695#(and (not (= main_x main_y)) (<= main_a_x 93)), 69694#(and (not (= main_x main_y)) (<= main_a_x 92)), 69697#(and (<= main_a_x 95) (not (= main_x main_y))), 69696#(and (<= main_a_x 94) (not (= main_x main_y))), 69699#(and (<= main_a_x 97) (not (= main_x main_y))), 69698#(and (not (= main_x main_y)) (<= main_a_x 96)), 69701#(and (<= main_a_x 99) (not (= main_x main_y))), 69700#(and (not (= main_x main_y)) (<= main_a_x 98)), 69703#(and (not (= main_x main_y)) (<= main_a_x 101)), 69702#(and (<= main_a_x 100) (not (= main_x main_y))), 69705#(and (not (= main_x main_y)) (<= main_a_x 103)), 69704#(and (not (= main_x main_y)) (<= main_a_x 102)), 69707#(and (<= main_a_x 105) (not (= main_x main_y))), 69706#(and (<= main_a_x 104) (not (= main_x main_y))), 69709#(and (not (= main_x main_y)) (<= main_a_x 107)), 69708#(and (not (= main_x main_y)) (<= main_a_x 106)), 69711#(and (not (= main_x main_y)) (<= main_a_x 109)), 69710#(and (not (= main_x main_y)) (<= main_a_x 108)), 69713#(and (not (= main_x main_y)) (<= main_a_x 111)), 69712#(and (<= main_a_x 110) (not (= main_x main_y))), 69715#(and (<= main_a_x 113) (not (= main_x main_y))), 69714#(and (<= main_a_x 112) (not (= main_x main_y))), 69717#(and (not (= main_x main_y)) (<= main_a_x 115)), 69716#(and (not (= main_x main_y)) (<= main_a_x 114)), 69719#(and (<= main_a_x 117) (not (= main_x main_y))), 69718#(and (not (= main_x main_y)) (<= main_a_x 116)), 69721#(and (not (= main_x main_y)) (<= main_a_x 119)), 69720#(and (not (= main_x main_y)) (<= main_a_x 118)), 69723#(and (not (= main_x main_y)) (<= main_a_x 121)), 69722#(and (not (= main_x main_y)) (<= main_a_x 120)), 69725#(and (<= main_a_x 123) (not (= main_x main_y))), 69724#(and (not (= main_x main_y)) (<= main_a_x 122)), 69727#(and (not (= main_x main_y)) (<= main_a_x 125)), 69726#(and (not (= main_x main_y)) (<= main_a_x 124)), 69729#(and (not (= main_x main_y)) (<= main_a_x 127)), 69728#(and (not (= main_x main_y)) (<= main_a_x 126)), 69731#(and (<= main_a_x 129) (not (= main_x main_y))), 69730#(and (<= main_a_x 128) (not (= main_x main_y))), 69733#(and (not (= main_x main_y)) (<= main_a_x 131)), 69732#(and (not (= main_x main_y)) (<= main_a_x 130)), 69735#(and (not (= main_x main_y)) (<= main_a_x 133)), 69734#(and (not (= main_x main_y)) (<= main_a_x 132)), 69737#(and (<= main_a_x 135) (not (= main_x main_y))), 69736#(and (not (= main_x main_y)) (<= main_a_x 134)), 69739#(and (not (= main_x main_y)) (<= main_a_x 137)), 69738#(and (<= main_a_x 136) (not (= main_x main_y))), 69741#(and (not (= main_x main_y)) (<= main_a_x 139)), 69740#(and (not (= main_x main_y)) (<= main_a_x 138)), 69743#(and (<= main_a_x 141) (not (= main_x main_y))), 69742#(and (<= main_a_x 140) (not (= main_x main_y))), 69745#(and (<= main_a_x 143) (not (= main_x main_y))), 69744#(and (not (= main_x main_y)) (<= main_a_x 142)), 69747#(and (not (= main_x main_y)) (<= main_a_x 145)), 69746#(and (<= main_a_x 144) (not (= main_x main_y))), 69749#(and (not (= main_x main_y)) (<= main_a_x 147)), 69748#(and (<= main_a_x 146) (not (= main_x main_y))), 69751#(and (not (= main_x main_y)) (<= main_a_x 149)), 69750#(and (<= main_a_x 148) (not (= main_x main_y))), 69753#(and (<= main_a_x 151) (not (= main_x main_y))), 69752#(and (not (= main_x main_y)) (<= main_a_x 150)), 69755#(and (not (= main_x main_y)) (<= main_a_x 153)), 69754#(and (not (= main_x main_y)) (<= main_a_x 152)), 69757#(and (not (= main_x main_y)) (<= main_a_x 155)), 69756#(and (<= main_a_x 154) (not (= main_x main_y))), 69759#(and (<= main_a_x 157) (not (= main_x main_y))), 69758#(and (<= main_a_x 156) (not (= main_x main_y))), 69761#(and (<= main_a_x 159) (not (= main_x main_y))), 69760#(and (<= main_a_x 158) (not (= main_x main_y))), 69763#(and (not (= main_x main_y)) (<= main_a_x 161)), 69762#(and (<= main_a_x 160) (not (= main_x main_y))), 69764#(<= main_a_x 162), 69601#false, 69600#true, 69603#(and (not (= main_x main_y)) (<= main_a_x 1)), 69602#(and (not (= main_x main_y)) (<= main_a_x 0)), 69605#(and (not (= main_x main_y)) (<= main_a_x 3)), 69604#(and (not (= main_x main_y)) (<= main_a_x 2)), 69607#(and (<= main_a_x 5) (not (= main_x main_y))), 69606#(and (<= main_a_x 4) (not (= main_x main_y))), 69609#(and (<= main_a_x 7) (not (= main_x main_y))), 69608#(and (not (= main_x main_y)) (<= main_a_x 6)), 69611#(and (not (= main_x main_y)) (<= main_a_x 9)), 69610#(and (not (= main_x main_y)) (<= main_a_x 8)), 69613#(and (not (= main_x main_y)) (<= main_a_x 11)), 69612#(and (<= main_a_x 10) (not (= main_x main_y))), 69615#(and (<= main_a_x 13) (not (= main_x main_y))), 69614#(and (not (= main_x main_y)) (<= main_a_x 12)), 69617#(and (<= main_a_x 15) (not (= main_x main_y))), 69616#(and (not (= main_x main_y)) (<= main_a_x 14)), 69619#(and (not (= main_x main_y)) (<= main_a_x 17)), 69618#(and (not (= main_x main_y)) (<= main_a_x 16)), 69621#(and (<= main_a_x 19) (not (= main_x main_y))), 69620#(and (<= main_a_x 18) (not (= main_x main_y))), 69623#(and (not (= main_x main_y)) (<= main_a_x 21)), 69622#(and (not (= main_x main_y)) (<= main_a_x 20)), 69625#(and (<= main_a_x 23) (not (= main_x main_y))), 69624#(and (not (= main_x main_y)) (<= main_a_x 22)), 69627#(and (<= main_a_x 25) (not (= main_x main_y))), 69626#(and (not (= main_x main_y)) (<= main_a_x 24)), 69629#(and (not (= main_x main_y)) (<= main_a_x 27)), 69628#(and (not (= main_x main_y)) (<= main_a_x 26)), 69631#(and (not (= main_x main_y)) (<= main_a_x 29)), 69630#(and (not (= main_x main_y)) (<= main_a_x 28))] [2018-07-23 13:55:06,031 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 13:55:06,031 INFO L450 AbstractCegarLoop]: Interpolant automaton has 165 states [2018-07-23 13:55:06,033 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 165 interpolants. [2018-07-23 13:55:06,034 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13530, Invalid=13530, Unknown=0, NotChecked=0, Total=27060 [2018-07-23 13:55:06,034 INFO L87 Difference]: Start difference. First operand 166 states and 166 transitions. Second operand 165 states. [2018-07-23 13:55:06,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:06,544 INFO L93 Difference]: Finished difference Result 169 states and 169 transitions. [2018-07-23 13:55:06,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 165 states. [2018-07-23 13:55:06,544 INFO L78 Accepts]: Start accepts. Automaton has 165 states. Word has length 165 [2018-07-23 13:55:06,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:06,545 INFO L225 Difference]: With dead ends: 169 [2018-07-23 13:55:06,545 INFO L226 Difference]: Without dead ends: 167 [2018-07-23 13:55:06,547 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 163 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=13530, Invalid=13530, Unknown=0, NotChecked=0, Total=27060 [2018-07-23 13:55:06,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2018-07-23 13:55:06,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2018-07-23 13:55:06,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2018-07-23 13:55:06,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 167 transitions. [2018-07-23 13:55:06,552 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 167 transitions. Word has length 165 [2018-07-23 13:55:06,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:06,553 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 167 transitions. [2018-07-23 13:55:06,553 INFO L472 AbstractCegarLoop]: Interpolant automaton has 165 states. [2018-07-23 13:55:06,553 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 167 transitions. [2018-07-23 13:55:06,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2018-07-23 13:55:06,553 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:06,553 INFO L357 BasicCegarLoop]: trace histogram [163, 1, 1, 1] [2018-07-23 13:55:06,553 INFO L414 AbstractCegarLoop]: === Iteration 164 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:06,553 INFO L82 PathProgramCache]: Analyzing trace with hash 310520455, now seen corresponding path program 163 times [2018-07-23 13:55:06,554 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:07,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:09,719 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 13:55:09,719 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:09,719 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [165] total 165 [2018-07-23 13:55:09,719 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:09,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:09,720 INFO L185 omatonBuilderFactory]: Interpolants [70437#true, 70439#(and (not (= main_x main_y)) (<= main_a_x 0)), 70438#false, 70441#(and (not (= main_x main_y)) (<= main_a_x 2)), 70440#(and (not (= main_x main_y)) (<= main_a_x 1)), 70443#(and (<= main_a_x 4) (not (= main_x main_y))), 70442#(and (not (= main_x main_y)) (<= main_a_x 3)), 70445#(and (not (= main_x main_y)) (<= main_a_x 6)), 70444#(and (<= main_a_x 5) (not (= main_x main_y))), 70447#(and (not (= main_x main_y)) (<= main_a_x 8)), 70446#(and (<= main_a_x 7) (not (= main_x main_y))), 70449#(and (<= main_a_x 10) (not (= main_x main_y))), 70448#(and (not (= main_x main_y)) (<= main_a_x 9)), 70451#(and (not (= main_x main_y)) (<= main_a_x 12)), 70450#(and (not (= main_x main_y)) (<= main_a_x 11)), 70453#(and (not (= main_x main_y)) (<= main_a_x 14)), 70452#(and (<= main_a_x 13) (not (= main_x main_y))), 70455#(and (not (= main_x main_y)) (<= main_a_x 16)), 70454#(and (<= main_a_x 15) (not (= main_x main_y))), 70457#(and (<= main_a_x 18) (not (= main_x main_y))), 70456#(and (not (= main_x main_y)) (<= main_a_x 17)), 70459#(and (not (= main_x main_y)) (<= main_a_x 20)), 70458#(and (<= main_a_x 19) (not (= main_x main_y))), 70461#(and (not (= main_x main_y)) (<= main_a_x 22)), 70460#(and (not (= main_x main_y)) (<= main_a_x 21)), 70463#(and (not (= main_x main_y)) (<= main_a_x 24)), 70462#(and (<= main_a_x 23) (not (= main_x main_y))), 70465#(and (not (= main_x main_y)) (<= main_a_x 26)), 70464#(and (<= main_a_x 25) (not (= main_x main_y))), 70467#(and (not (= main_x main_y)) (<= main_a_x 28)), 70466#(and (not (= main_x main_y)) (<= main_a_x 27)), 70469#(and (<= main_a_x 30) (not (= main_x main_y))), 70468#(and (not (= main_x main_y)) (<= main_a_x 29)), 70471#(and (not (= main_x main_y)) (<= main_a_x 32)), 70470#(and (<= main_a_x 31) (not (= main_x main_y))), 70473#(and (not (= main_x main_y)) (<= main_a_x 34)), 70472#(and (not (= main_x main_y)) (<= main_a_x 33)), 70475#(and (not (= main_x main_y)) (<= main_a_x 36)), 70474#(and (<= main_a_x 35) (not (= main_x main_y))), 70477#(and (not (= main_x main_y)) (<= main_a_x 38)), 70476#(and (<= main_a_x 37) (not (= main_x main_y))), 70479#(and (<= main_a_x 40) (not (= main_x main_y))), 70478#(and (<= main_a_x 39) (not (= main_x main_y))), 70481#(and (not (= main_x main_y)) (<= main_a_x 42)), 70480#(and (not (= main_x main_y)) (<= main_a_x 41)), 70483#(and (<= main_a_x 44) (not (= main_x main_y))), 70482#(and (<= main_a_x 43) (not (= main_x main_y))), 70485#(and (<= main_a_x 46) (not (= main_x main_y))), 70484#(and (<= main_a_x 45) (not (= main_x main_y))), 70487#(and (<= main_a_x 48) (not (= main_x main_y))), 70486#(and (<= main_a_x 47) (not (= main_x main_y))), 70489#(and (not (= main_x main_y)) (<= main_a_x 50)), 70488#(and (not (= main_x main_y)) (<= main_a_x 49)), 70491#(and (not (= main_x main_y)) (<= main_a_x 52)), 70490#(and (<= main_a_x 51) (not (= main_x main_y))), 70493#(and (<= main_a_x 54) (not (= main_x main_y))), 70492#(and (<= main_a_x 53) (not (= main_x main_y))), 70495#(and (not (= main_x main_y)) (<= main_a_x 56)), 70494#(and (not (= main_x main_y)) (<= main_a_x 55)), 70497#(and (not (= main_x main_y)) (<= main_a_x 58)), 70496#(and (not (= main_x main_y)) (<= main_a_x 57)), 70499#(and (<= main_a_x 60) (not (= main_x main_y))), 70498#(and (not (= main_x main_y)) (<= main_a_x 59)), 70501#(and (not (= main_x main_y)) (<= main_a_x 62)), 70500#(and (not (= main_x main_y)) (<= main_a_x 61)), 70503#(and (<= main_a_x 64) (not (= main_x main_y))), 70502#(and (<= main_a_x 63) (not (= main_x main_y))), 70505#(and (<= main_a_x 66) (not (= main_x main_y))), 70504#(and (<= main_a_x 65) (not (= main_x main_y))), 70507#(and (not (= main_x main_y)) (<= main_a_x 68)), 70506#(and (<= main_a_x 67) (not (= main_x main_y))), 70509#(and (<= main_a_x 70) (not (= main_x main_y))), 70508#(and (<= main_a_x 69) (not (= main_x main_y))), 70511#(and (not (= main_x main_y)) (<= main_a_x 72)), 70510#(and (<= main_a_x 71) (not (= main_x main_y))), 70513#(and (<= main_a_x 74) (not (= main_x main_y))), 70512#(and (not (= main_x main_y)) (<= main_a_x 73)), 70515#(and (not (= main_x main_y)) (<= main_a_x 76)), 70514#(and (<= main_a_x 75) (not (= main_x main_y))), 70517#(and (<= main_a_x 78) (not (= main_x main_y))), 70516#(and (not (= main_x main_y)) (<= main_a_x 77)), 70519#(and (not (= main_x main_y)) (<= main_a_x 80)), 70518#(and (<= main_a_x 79) (not (= main_x main_y))), 70521#(and (not (= main_x main_y)) (<= main_a_x 82)), 70520#(and (not (= main_x main_y)) (<= main_a_x 81)), 70523#(and (<= main_a_x 84) (not (= main_x main_y))), 70522#(and (not (= main_x main_y)) (<= main_a_x 83)), 70525#(and (not (= main_x main_y)) (<= main_a_x 86)), 70524#(and (not (= main_x main_y)) (<= main_a_x 85)), 70527#(and (not (= main_x main_y)) (<= main_a_x 88)), 70526#(and (<= main_a_x 87) (not (= main_x main_y))), 70529#(and (not (= main_x main_y)) (<= main_a_x 90)), 70528#(and (<= main_a_x 89) (not (= main_x main_y))), 70531#(and (not (= main_x main_y)) (<= main_a_x 92)), 70530#(and (<= main_a_x 91) (not (= main_x main_y))), 70533#(and (<= main_a_x 94) (not (= main_x main_y))), 70532#(and (not (= main_x main_y)) (<= main_a_x 93)), 70535#(and (not (= main_x main_y)) (<= main_a_x 96)), 70534#(and (<= main_a_x 95) (not (= main_x main_y))), 70537#(and (not (= main_x main_y)) (<= main_a_x 98)), 70536#(and (<= main_a_x 97) (not (= main_x main_y))), 70539#(and (<= main_a_x 100) (not (= main_x main_y))), 70538#(and (<= main_a_x 99) (not (= main_x main_y))), 70541#(and (not (= main_x main_y)) (<= main_a_x 102)), 70540#(and (not (= main_x main_y)) (<= main_a_x 101)), 70543#(and (<= main_a_x 104) (not (= main_x main_y))), 70542#(and (not (= main_x main_y)) (<= main_a_x 103)), 70545#(and (not (= main_x main_y)) (<= main_a_x 106)), 70544#(and (<= main_a_x 105) (not (= main_x main_y))), 70547#(and (not (= main_x main_y)) (<= main_a_x 108)), 70546#(and (not (= main_x main_y)) (<= main_a_x 107)), 70549#(and (<= main_a_x 110) (not (= main_x main_y))), 70548#(and (not (= main_x main_y)) (<= main_a_x 109)), 70551#(and (<= main_a_x 112) (not (= main_x main_y))), 70550#(and (not (= main_x main_y)) (<= main_a_x 111)), 70553#(and (not (= main_x main_y)) (<= main_a_x 114)), 70552#(and (<= main_a_x 113) (not (= main_x main_y))), 70555#(and (not (= main_x main_y)) (<= main_a_x 116)), 70554#(and (not (= main_x main_y)) (<= main_a_x 115)), 70557#(and (not (= main_x main_y)) (<= main_a_x 118)), 70556#(and (<= main_a_x 117) (not (= main_x main_y))), 70559#(and (not (= main_x main_y)) (<= main_a_x 120)), 70558#(and (not (= main_x main_y)) (<= main_a_x 119)), 70561#(and (not (= main_x main_y)) (<= main_a_x 122)), 70560#(and (not (= main_x main_y)) (<= main_a_x 121)), 70563#(and (not (= main_x main_y)) (<= main_a_x 124)), 70562#(and (<= main_a_x 123) (not (= main_x main_y))), 70565#(and (not (= main_x main_y)) (<= main_a_x 126)), 70564#(and (not (= main_x main_y)) (<= main_a_x 125)), 70567#(and (<= main_a_x 128) (not (= main_x main_y))), 70566#(and (not (= main_x main_y)) (<= main_a_x 127)), 70569#(and (not (= main_x main_y)) (<= main_a_x 130)), 70568#(and (<= main_a_x 129) (not (= main_x main_y))), 70571#(and (not (= main_x main_y)) (<= main_a_x 132)), 70570#(and (not (= main_x main_y)) (<= main_a_x 131)), 70573#(and (not (= main_x main_y)) (<= main_a_x 134)), 70572#(and (not (= main_x main_y)) (<= main_a_x 133)), 70575#(and (<= main_a_x 136) (not (= main_x main_y))), 70574#(and (<= main_a_x 135) (not (= main_x main_y))), 70577#(and (not (= main_x main_y)) (<= main_a_x 138)), 70576#(and (not (= main_x main_y)) (<= main_a_x 137)), 70579#(and (<= main_a_x 140) (not (= main_x main_y))), 70578#(and (not (= main_x main_y)) (<= main_a_x 139)), 70581#(and (not (= main_x main_y)) (<= main_a_x 142)), 70580#(and (<= main_a_x 141) (not (= main_x main_y))), 70583#(and (<= main_a_x 144) (not (= main_x main_y))), 70582#(and (<= main_a_x 143) (not (= main_x main_y))), 70585#(and (<= main_a_x 146) (not (= main_x main_y))), 70584#(and (not (= main_x main_y)) (<= main_a_x 145)), 70587#(and (<= main_a_x 148) (not (= main_x main_y))), 70586#(and (not (= main_x main_y)) (<= main_a_x 147)), 70589#(and (not (= main_x main_y)) (<= main_a_x 150)), 70588#(and (not (= main_x main_y)) (<= main_a_x 149)), 70591#(and (not (= main_x main_y)) (<= main_a_x 152)), 70590#(and (<= main_a_x 151) (not (= main_x main_y))), 70593#(and (<= main_a_x 154) (not (= main_x main_y))), 70592#(and (not (= main_x main_y)) (<= main_a_x 153)), 70595#(and (<= main_a_x 156) (not (= main_x main_y))), 70594#(and (not (= main_x main_y)) (<= main_a_x 155)), 70597#(and (<= main_a_x 158) (not (= main_x main_y))), 70596#(and (<= main_a_x 157) (not (= main_x main_y))), 70599#(and (<= main_a_x 160) (not (= main_x main_y))), 70598#(and (<= main_a_x 159) (not (= main_x main_y))), 70601#(and (<= main_a_x 162) (not (= main_x main_y))), 70600#(and (not (= main_x main_y)) (<= main_a_x 161)), 70602#(<= main_a_x 163)] [2018-07-23 13:55:09,721 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 13:55:09,721 INFO L450 AbstractCegarLoop]: Interpolant automaton has 166 states [2018-07-23 13:55:09,723 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 166 interpolants. [2018-07-23 13:55:09,724 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13695, Invalid=13695, Unknown=0, NotChecked=0, Total=27390 [2018-07-23 13:55:09,724 INFO L87 Difference]: Start difference. First operand 167 states and 167 transitions. Second operand 166 states. [2018-07-23 13:55:10,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:10,272 INFO L93 Difference]: Finished difference Result 170 states and 170 transitions. [2018-07-23 13:55:10,272 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 166 states. [2018-07-23 13:55:10,272 INFO L78 Accepts]: Start accepts. Automaton has 166 states. Word has length 166 [2018-07-23 13:55:10,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:10,273 INFO L225 Difference]: With dead ends: 170 [2018-07-23 13:55:10,273 INFO L226 Difference]: Without dead ends: 168 [2018-07-23 13:55:10,274 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 164 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=13695, Invalid=13695, Unknown=0, NotChecked=0, Total=27390 [2018-07-23 13:55:10,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2018-07-23 13:55:10,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2018-07-23 13:55:10,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2018-07-23 13:55:10,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 168 transitions. [2018-07-23 13:55:10,278 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 168 transitions. Word has length 166 [2018-07-23 13:55:10,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:10,279 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 168 transitions. [2018-07-23 13:55:10,279 INFO L472 AbstractCegarLoop]: Interpolant automaton has 166 states. [2018-07-23 13:55:10,279 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 168 transitions. [2018-07-23 13:55:10,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2018-07-23 13:55:10,279 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:10,279 INFO L357 BasicCegarLoop]: trace histogram [164, 1, 1, 1] [2018-07-23 13:55:10,279 INFO L414 AbstractCegarLoop]: === Iteration 165 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:10,280 INFO L82 PathProgramCache]: Analyzing trace with hash 1036214892, now seen corresponding path program 164 times [2018-07-23 13:55:10,280 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:11,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:13,530 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 13:55:13,531 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:13,531 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [166] total 166 [2018-07-23 13:55:13,531 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:13,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:13,532 INFO L185 omatonBuilderFactory]: Interpolants [71425#(and (<= main_a_x 144) (not (= main_x main_y))), 71424#(and (<= main_a_x 143) (not (= main_x main_y))), 71427#(and (<= main_a_x 146) (not (= main_x main_y))), 71426#(and (not (= main_x main_y)) (<= main_a_x 145)), 71429#(and (<= main_a_x 148) (not (= main_x main_y))), 71428#(and (not (= main_x main_y)) (<= main_a_x 147)), 71431#(and (not (= main_x main_y)) (<= main_a_x 150)), 71430#(and (not (= main_x main_y)) (<= main_a_x 149)), 71433#(and (not (= main_x main_y)) (<= main_a_x 152)), 71432#(and (<= main_a_x 151) (not (= main_x main_y))), 71435#(and (<= main_a_x 154) (not (= main_x main_y))), 71434#(and (not (= main_x main_y)) (<= main_a_x 153)), 71437#(and (<= main_a_x 156) (not (= main_x main_y))), 71436#(and (not (= main_x main_y)) (<= main_a_x 155)), 71439#(and (<= main_a_x 158) (not (= main_x main_y))), 71438#(and (<= main_a_x 157) (not (= main_x main_y))), 71441#(and (<= main_a_x 160) (not (= main_x main_y))), 71440#(and (<= main_a_x 159) (not (= main_x main_y))), 71443#(and (<= main_a_x 162) (not (= main_x main_y))), 71442#(and (not (= main_x main_y)) (<= main_a_x 161)), 71445#(<= main_a_x 164), 71444#(and (not (= main_x main_y)) (<= main_a_x 163)), 71279#true, 71281#(and (not (= main_x main_y)) (<= main_a_x 0)), 71280#false, 71283#(and (not (= main_x main_y)) (<= main_a_x 2)), 71282#(and (not (= main_x main_y)) (<= main_a_x 1)), 71285#(and (<= main_a_x 4) (not (= main_x main_y))), 71284#(and (not (= main_x main_y)) (<= main_a_x 3)), 71287#(and (not (= main_x main_y)) (<= main_a_x 6)), 71286#(and (<= main_a_x 5) (not (= main_x main_y))), 71289#(and (not (= main_x main_y)) (<= main_a_x 8)), 71288#(and (<= main_a_x 7) (not (= main_x main_y))), 71291#(and (<= main_a_x 10) (not (= main_x main_y))), 71290#(and (not (= main_x main_y)) (<= main_a_x 9)), 71293#(and (not (= main_x main_y)) (<= main_a_x 12)), 71292#(and (not (= main_x main_y)) (<= main_a_x 11)), 71295#(and (not (= main_x main_y)) (<= main_a_x 14)), 71294#(and (<= main_a_x 13) (not (= main_x main_y))), 71297#(and (not (= main_x main_y)) (<= main_a_x 16)), 71296#(and (<= main_a_x 15) (not (= main_x main_y))), 71299#(and (<= main_a_x 18) (not (= main_x main_y))), 71298#(and (not (= main_x main_y)) (<= main_a_x 17)), 71301#(and (not (= main_x main_y)) (<= main_a_x 20)), 71300#(and (<= main_a_x 19) (not (= main_x main_y))), 71303#(and (not (= main_x main_y)) (<= main_a_x 22)), 71302#(and (not (= main_x main_y)) (<= main_a_x 21)), 71305#(and (not (= main_x main_y)) (<= main_a_x 24)), 71304#(and (<= main_a_x 23) (not (= main_x main_y))), 71307#(and (not (= main_x main_y)) (<= main_a_x 26)), 71306#(and (<= main_a_x 25) (not (= main_x main_y))), 71309#(and (not (= main_x main_y)) (<= main_a_x 28)), 71308#(and (not (= main_x main_y)) (<= main_a_x 27)), 71311#(and (<= main_a_x 30) (not (= main_x main_y))), 71310#(and (not (= main_x main_y)) (<= main_a_x 29)), 71313#(and (not (= main_x main_y)) (<= main_a_x 32)), 71312#(and (<= main_a_x 31) (not (= main_x main_y))), 71315#(and (not (= main_x main_y)) (<= main_a_x 34)), 71314#(and (not (= main_x main_y)) (<= main_a_x 33)), 71317#(and (not (= main_x main_y)) (<= main_a_x 36)), 71316#(and (<= main_a_x 35) (not (= main_x main_y))), 71319#(and (not (= main_x main_y)) (<= main_a_x 38)), 71318#(and (<= main_a_x 37) (not (= main_x main_y))), 71321#(and (<= main_a_x 40) (not (= main_x main_y))), 71320#(and (<= main_a_x 39) (not (= main_x main_y))), 71323#(and (not (= main_x main_y)) (<= main_a_x 42)), 71322#(and (not (= main_x main_y)) (<= main_a_x 41)), 71325#(and (<= main_a_x 44) (not (= main_x main_y))), 71324#(and (<= main_a_x 43) (not (= main_x main_y))), 71327#(and (<= main_a_x 46) (not (= main_x main_y))), 71326#(and (<= main_a_x 45) (not (= main_x main_y))), 71329#(and (<= main_a_x 48) (not (= main_x main_y))), 71328#(and (<= main_a_x 47) (not (= main_x main_y))), 71331#(and (not (= main_x main_y)) (<= main_a_x 50)), 71330#(and (not (= main_x main_y)) (<= main_a_x 49)), 71333#(and (not (= main_x main_y)) (<= main_a_x 52)), 71332#(and (<= main_a_x 51) (not (= main_x main_y))), 71335#(and (<= main_a_x 54) (not (= main_x main_y))), 71334#(and (<= main_a_x 53) (not (= main_x main_y))), 71337#(and (not (= main_x main_y)) (<= main_a_x 56)), 71336#(and (not (= main_x main_y)) (<= main_a_x 55)), 71339#(and (not (= main_x main_y)) (<= main_a_x 58)), 71338#(and (not (= main_x main_y)) (<= main_a_x 57)), 71341#(and (<= main_a_x 60) (not (= main_x main_y))), 71340#(and (not (= main_x main_y)) (<= main_a_x 59)), 71343#(and (not (= main_x main_y)) (<= main_a_x 62)), 71342#(and (not (= main_x main_y)) (<= main_a_x 61)), 71345#(and (<= main_a_x 64) (not (= main_x main_y))), 71344#(and (<= main_a_x 63) (not (= main_x main_y))), 71347#(and (<= main_a_x 66) (not (= main_x main_y))), 71346#(and (<= main_a_x 65) (not (= main_x main_y))), 71349#(and (not (= main_x main_y)) (<= main_a_x 68)), 71348#(and (<= main_a_x 67) (not (= main_x main_y))), 71351#(and (<= main_a_x 70) (not (= main_x main_y))), 71350#(and (<= main_a_x 69) (not (= main_x main_y))), 71353#(and (not (= main_x main_y)) (<= main_a_x 72)), 71352#(and (<= main_a_x 71) (not (= main_x main_y))), 71355#(and (<= main_a_x 74) (not (= main_x main_y))), 71354#(and (not (= main_x main_y)) (<= main_a_x 73)), 71357#(and (not (= main_x main_y)) (<= main_a_x 76)), 71356#(and (<= main_a_x 75) (not (= main_x main_y))), 71359#(and (<= main_a_x 78) (not (= main_x main_y))), 71358#(and (not (= main_x main_y)) (<= main_a_x 77)), 71361#(and (not (= main_x main_y)) (<= main_a_x 80)), 71360#(and (<= main_a_x 79) (not (= main_x main_y))), 71363#(and (not (= main_x main_y)) (<= main_a_x 82)), 71362#(and (not (= main_x main_y)) (<= main_a_x 81)), 71365#(and (<= main_a_x 84) (not (= main_x main_y))), 71364#(and (not (= main_x main_y)) (<= main_a_x 83)), 71367#(and (not (= main_x main_y)) (<= main_a_x 86)), 71366#(and (not (= main_x main_y)) (<= main_a_x 85)), 71369#(and (not (= main_x main_y)) (<= main_a_x 88)), 71368#(and (<= main_a_x 87) (not (= main_x main_y))), 71371#(and (not (= main_x main_y)) (<= main_a_x 90)), 71370#(and (<= main_a_x 89) (not (= main_x main_y))), 71373#(and (not (= main_x main_y)) (<= main_a_x 92)), 71372#(and (<= main_a_x 91) (not (= main_x main_y))), 71375#(and (<= main_a_x 94) (not (= main_x main_y))), 71374#(and (not (= main_x main_y)) (<= main_a_x 93)), 71377#(and (not (= main_x main_y)) (<= main_a_x 96)), 71376#(and (<= main_a_x 95) (not (= main_x main_y))), 71379#(and (not (= main_x main_y)) (<= main_a_x 98)), 71378#(and (<= main_a_x 97) (not (= main_x main_y))), 71381#(and (<= main_a_x 100) (not (= main_x main_y))), 71380#(and (<= main_a_x 99) (not (= main_x main_y))), 71383#(and (not (= main_x main_y)) (<= main_a_x 102)), 71382#(and (not (= main_x main_y)) (<= main_a_x 101)), 71385#(and (<= main_a_x 104) (not (= main_x main_y))), 71384#(and (not (= main_x main_y)) (<= main_a_x 103)), 71387#(and (not (= main_x main_y)) (<= main_a_x 106)), 71386#(and (<= main_a_x 105) (not (= main_x main_y))), 71389#(and (not (= main_x main_y)) (<= main_a_x 108)), 71388#(and (not (= main_x main_y)) (<= main_a_x 107)), 71391#(and (<= main_a_x 110) (not (= main_x main_y))), 71390#(and (not (= main_x main_y)) (<= main_a_x 109)), 71393#(and (<= main_a_x 112) (not (= main_x main_y))), 71392#(and (not (= main_x main_y)) (<= main_a_x 111)), 71395#(and (not (= main_x main_y)) (<= main_a_x 114)), 71394#(and (<= main_a_x 113) (not (= main_x main_y))), 71397#(and (not (= main_x main_y)) (<= main_a_x 116)), 71396#(and (not (= main_x main_y)) (<= main_a_x 115)), 71399#(and (not (= main_x main_y)) (<= main_a_x 118)), 71398#(and (<= main_a_x 117) (not (= main_x main_y))), 71401#(and (not (= main_x main_y)) (<= main_a_x 120)), 71400#(and (not (= main_x main_y)) (<= main_a_x 119)), 71403#(and (not (= main_x main_y)) (<= main_a_x 122)), 71402#(and (not (= main_x main_y)) (<= main_a_x 121)), 71405#(and (not (= main_x main_y)) (<= main_a_x 124)), 71404#(and (<= main_a_x 123) (not (= main_x main_y))), 71407#(and (not (= main_x main_y)) (<= main_a_x 126)), 71406#(and (not (= main_x main_y)) (<= main_a_x 125)), 71409#(and (<= main_a_x 128) (not (= main_x main_y))), 71408#(and (not (= main_x main_y)) (<= main_a_x 127)), 71411#(and (not (= main_x main_y)) (<= main_a_x 130)), 71410#(and (<= main_a_x 129) (not (= main_x main_y))), 71413#(and (not (= main_x main_y)) (<= main_a_x 132)), 71412#(and (not (= main_x main_y)) (<= main_a_x 131)), 71415#(and (not (= main_x main_y)) (<= main_a_x 134)), 71414#(and (not (= main_x main_y)) (<= main_a_x 133)), 71417#(and (<= main_a_x 136) (not (= main_x main_y))), 71416#(and (<= main_a_x 135) (not (= main_x main_y))), 71419#(and (not (= main_x main_y)) (<= main_a_x 138)), 71418#(and (not (= main_x main_y)) (<= main_a_x 137)), 71421#(and (<= main_a_x 140) (not (= main_x main_y))), 71420#(and (not (= main_x main_y)) (<= main_a_x 139)), 71423#(and (not (= main_x main_y)) (<= main_a_x 142)), 71422#(and (<= main_a_x 141) (not (= main_x main_y)))] [2018-07-23 13:55:13,533 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 13:55:13,533 INFO L450 AbstractCegarLoop]: Interpolant automaton has 167 states [2018-07-23 13:55:13,534 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 167 interpolants. [2018-07-23 13:55:13,535 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13861, Invalid=13861, Unknown=0, NotChecked=0, Total=27722 [2018-07-23 13:55:13,535 INFO L87 Difference]: Start difference. First operand 168 states and 168 transitions. Second operand 167 states. [2018-07-23 13:55:13,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:13,994 INFO L93 Difference]: Finished difference Result 171 states and 171 transitions. [2018-07-23 13:55:13,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2018-07-23 13:55:13,994 INFO L78 Accepts]: Start accepts. Automaton has 167 states. Word has length 167 [2018-07-23 13:55:13,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:13,995 INFO L225 Difference]: With dead ends: 171 [2018-07-23 13:55:13,995 INFO L226 Difference]: Without dead ends: 169 [2018-07-23 13:55:13,996 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 165 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=13861, Invalid=13861, Unknown=0, NotChecked=0, Total=27722 [2018-07-23 13:55:13,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2018-07-23 13:55:14,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2018-07-23 13:55:14,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2018-07-23 13:55:14,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 169 transitions. [2018-07-23 13:55:14,001 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 169 transitions. Word has length 167 [2018-07-23 13:55:14,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:14,001 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 169 transitions. [2018-07-23 13:55:14,001 INFO L472 AbstractCegarLoop]: Interpolant automaton has 167 states. [2018-07-23 13:55:14,001 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 169 transitions. [2018-07-23 13:55:14,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2018-07-23 13:55:14,002 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:14,002 INFO L357 BasicCegarLoop]: trace histogram [165, 1, 1, 1] [2018-07-23 13:55:14,002 INFO L414 AbstractCegarLoop]: === Iteration 166 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:14,002 INFO L82 PathProgramCache]: Analyzing trace with hash 2057905959, now seen corresponding path program 165 times [2018-07-23 13:55:14,002 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:15,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:17,282 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 13:55:17,282 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:17,282 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [167] total 167 [2018-07-23 13:55:17,283 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:17,283 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 13:55:17,283 INFO L185 omatonBuilderFactory]: Interpolants [72193#(and (<= main_a_x 65) (not (= main_x main_y))), 72192#(and (<= main_a_x 64) (not (= main_x main_y))), 72195#(and (<= main_a_x 67) (not (= main_x main_y))), 72194#(and (<= main_a_x 66) (not (= main_x main_y))), 72197#(and (<= main_a_x 69) (not (= main_x main_y))), 72196#(and (not (= main_x main_y)) (<= main_a_x 68)), 72199#(and (<= main_a_x 71) (not (= main_x main_y))), 72198#(and (<= main_a_x 70) (not (= main_x main_y))), 72201#(and (not (= main_x main_y)) (<= main_a_x 73)), 72200#(and (not (= main_x main_y)) (<= main_a_x 72)), 72203#(and (<= main_a_x 75) (not (= main_x main_y))), 72202#(and (<= main_a_x 74) (not (= main_x main_y))), 72205#(and (not (= main_x main_y)) (<= main_a_x 77)), 72204#(and (not (= main_x main_y)) (<= main_a_x 76)), 72207#(and (<= main_a_x 79) (not (= main_x main_y))), 72206#(and (<= main_a_x 78) (not (= main_x main_y))), 72209#(and (not (= main_x main_y)) (<= main_a_x 81)), 72208#(and (not (= main_x main_y)) (<= main_a_x 80)), 72211#(and (not (= main_x main_y)) (<= main_a_x 83)), 72210#(and (not (= main_x main_y)) (<= main_a_x 82)), 72213#(and (not (= main_x main_y)) (<= main_a_x 85)), 72212#(and (<= main_a_x 84) (not (= main_x main_y))), 72215#(and (<= main_a_x 87) (not (= main_x main_y))), 72214#(and (not (= main_x main_y)) (<= main_a_x 86)), 72217#(and (<= main_a_x 89) (not (= main_x main_y))), 72216#(and (not (= main_x main_y)) (<= main_a_x 88)), 72219#(and (<= main_a_x 91) (not (= main_x main_y))), 72218#(and (not (= main_x main_y)) (<= main_a_x 90)), 72221#(and (not (= main_x main_y)) (<= main_a_x 93)), 72220#(and (not (= main_x main_y)) (<= main_a_x 92)), 72223#(and (<= main_a_x 95) (not (= main_x main_y))), 72222#(and (<= main_a_x 94) (not (= main_x main_y))), 72225#(and (<= main_a_x 97) (not (= main_x main_y))), 72224#(and (not (= main_x main_y)) (<= main_a_x 96)), 72227#(and (<= main_a_x 99) (not (= main_x main_y))), 72226#(and (not (= main_x main_y)) (<= main_a_x 98)), 72229#(and (not (= main_x main_y)) (<= main_a_x 101)), 72228#(and (<= main_a_x 100) (not (= main_x main_y))), 72231#(and (not (= main_x main_y)) (<= main_a_x 103)), 72230#(and (not (= main_x main_y)) (<= main_a_x 102)), 72233#(and (<= main_a_x 105) (not (= main_x main_y))), 72232#(and (<= main_a_x 104) (not (= main_x main_y))), 72235#(and (not (= main_x main_y)) (<= main_a_x 107)), 72234#(and (not (= main_x main_y)) (<= main_a_x 106)), 72237#(and (not (= main_x main_y)) (<= main_a_x 109)), 72236#(and (not (= main_x main_y)) (<= main_a_x 108)), 72239#(and (not (= main_x main_y)) (<= main_a_x 111)), 72238#(and (<= main_a_x 110) (not (= main_x main_y))), 72241#(and (<= main_a_x 113) (not (= main_x main_y))), 72240#(and (<= main_a_x 112) (not (= main_x main_y))), 72243#(and (not (= main_x main_y)) (<= main_a_x 115)), 72242#(and (not (= main_x main_y)) (<= main_a_x 114)), 72245#(and (<= main_a_x 117) (not (= main_x main_y))), 72244#(and (not (= main_x main_y)) (<= main_a_x 116)), 72247#(and (not (= main_x main_y)) (<= main_a_x 119)), 72246#(and (not (= main_x main_y)) (<= main_a_x 118)), 72249#(and (not (= main_x main_y)) (<= main_a_x 121)), 72248#(and (not (= main_x main_y)) (<= main_a_x 120)), 72251#(and (<= main_a_x 123) (not (= main_x main_y))), 72250#(and (not (= main_x main_y)) (<= main_a_x 122)), 72253#(and (not (= main_x main_y)) (<= main_a_x 125)), 72252#(and (not (= main_x main_y)) (<= main_a_x 124)), 72255#(and (not (= main_x main_y)) (<= main_a_x 127)), 72254#(and (not (= main_x main_y)) (<= main_a_x 126)), 72257#(and (<= main_a_x 129) (not (= main_x main_y))), 72256#(and (<= main_a_x 128) (not (= main_x main_y))), 72259#(and (not (= main_x main_y)) (<= main_a_x 131)), 72258#(and (not (= main_x main_y)) (<= main_a_x 130)), 72261#(and (not (= main_x main_y)) (<= main_a_x 133)), 72260#(and (not (= main_x main_y)) (<= main_a_x 132)), 72263#(and (<= main_a_x 135) (not (= main_x main_y))), 72262#(and (not (= main_x main_y)) (<= main_a_x 134)), 72265#(and (not (= main_x main_y)) (<= main_a_x 137)), 72264#(and (<= main_a_x 136) (not (= main_x main_y))), 72267#(and (not (= main_x main_y)) (<= main_a_x 139)), 72266#(and (not (= main_x main_y)) (<= main_a_x 138)), 72269#(and (<= main_a_x 141) (not (= main_x main_y))), 72268#(and (<= main_a_x 140) (not (= main_x main_y))), 72271#(and (<= main_a_x 143) (not (= main_x main_y))), 72270#(and (not (= main_x main_y)) (<= main_a_x 142)), 72273#(and (not (= main_x main_y)) (<= main_a_x 145)), 72272#(and (<= main_a_x 144) (not (= main_x main_y))), 72275#(and (not (= main_x main_y)) (<= main_a_x 147)), 72274#(and (<= main_a_x 146) (not (= main_x main_y))), 72277#(and (not (= main_x main_y)) (<= main_a_x 149)), 72276#(and (<= main_a_x 148) (not (= main_x main_y))), 72279#(and (<= main_a_x 151) (not (= main_x main_y))), 72278#(and (not (= main_x main_y)) (<= main_a_x 150)), 72281#(and (not (= main_x main_y)) (<= main_a_x 153)), 72280#(and (not (= main_x main_y)) (<= main_a_x 152)), 72283#(and (not (= main_x main_y)) (<= main_a_x 155)), 72282#(and (<= main_a_x 154) (not (= main_x main_y))), 72285#(and (<= main_a_x 157) (not (= main_x main_y))), 72284#(and (<= main_a_x 156) (not (= main_x main_y))), 72287#(and (<= main_a_x 159) (not (= main_x main_y))), 72286#(and (<= main_a_x 158) (not (= main_x main_y))), 72289#(and (not (= main_x main_y)) (<= main_a_x 161)), 72288#(and (<= main_a_x 160) (not (= main_x main_y))), 72291#(and (not (= main_x main_y)) (<= main_a_x 163)), 72290#(and (<= main_a_x 162) (not (= main_x main_y))), 72293#(<= main_a_x 165), 72292#(and (not (= main_x main_y)) (<= main_a_x 164)), 72127#false, 72126#true, 72129#(and (not (= main_x main_y)) (<= main_a_x 1)), 72128#(and (not (= main_x main_y)) (<= main_a_x 0)), 72131#(and (not (= main_x main_y)) (<= main_a_x 3)), 72130#(and (not (= main_x main_y)) (<= main_a_x 2)), 72133#(and (<= main_a_x 5) (not (= main_x main_y))), 72132#(and (<= main_a_x 4) (not (= main_x main_y))), 72135#(and (<= main_a_x 7) (not (= 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(not (= main_x main_y)) (<= main_a_x 24)), 72155#(and (not (= main_x main_y)) (<= main_a_x 27)), 72154#(and (not (= main_x main_y)) (<= main_a_x 26)), 72157#(and (not (= main_x main_y)) (<= main_a_x 29)), 72156#(and (not (= main_x main_y)) (<= main_a_x 28)), 72159#(and (<= main_a_x 31) (not (= main_x main_y))), 72158#(and (<= main_a_x 30) (not (= main_x main_y))), 72161#(and (not (= main_x main_y)) (<= main_a_x 33)), 72160#(and (not (= main_x main_y)) (<= main_a_x 32)), 72163#(and (<= main_a_x 35) (not (= main_x main_y))), 72162#(and (not (= main_x main_y)) (<= main_a_x 34)), 72165#(and (<= main_a_x 37) (not (= main_x main_y))), 72164#(and (not (= main_x main_y)) (<= main_a_x 36)), 72167#(and (<= main_a_x 39) (not (= main_x main_y))), 72166#(and (not (= main_x main_y)) (<= main_a_x 38)), 72169#(and (not (= main_x main_y)) (<= main_a_x 41)), 72168#(and (<= main_a_x 40) (not (= main_x main_y))), 72171#(and (<= main_a_x 43) (not (= main_x main_y))), 72170#(and (not (= main_x main_y)) (<= main_a_x 42)), 72173#(and (<= main_a_x 45) (not (= main_x main_y))), 72172#(and (<= main_a_x 44) (not (= main_x main_y))), 72175#(and (<= main_a_x 47) (not (= main_x main_y))), 72174#(and (<= main_a_x 46) (not (= main_x main_y))), 72177#(and (not (= main_x main_y)) (<= main_a_x 49)), 72176#(and (<= main_a_x 48) (not (= main_x main_y))), 72179#(and (<= main_a_x 51) (not (= main_x main_y))), 72178#(and (not (= main_x main_y)) (<= main_a_x 50)), 72181#(and (<= main_a_x 53) (not (= main_x main_y))), 72180#(and (not (= main_x main_y)) (<= main_a_x 52)), 72183#(and (not (= main_x main_y)) (<= main_a_x 55)), 72182#(and (<= main_a_x 54) (not (= main_x main_y))), 72185#(and (not (= main_x main_y)) (<= main_a_x 57)), 72184#(and (not (= main_x main_y)) (<= main_a_x 56)), 72187#(and (not (= main_x main_y)) (<= main_a_x 59)), 72186#(and (not (= main_x main_y)) (<= main_a_x 58)), 72189#(and (not (= main_x main_y)) (<= main_a_x 61)), 72188#(and (<= main_a_x 60) (not (= main_x main_y))), 72191#(and (<= main_a_x 63) (not (= main_x main_y))), 72190#(and (not (= main_x main_y)) (<= main_a_x 62))] [2018-07-23 13:55:17,284 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 13:55:17,284 INFO L450 AbstractCegarLoop]: Interpolant automaton has 168 states [2018-07-23 13:55:17,285 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 168 interpolants. [2018-07-23 13:55:17,285 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14028, Invalid=14028, Unknown=0, NotChecked=0, Total=28056 [2018-07-23 13:55:17,286 INFO L87 Difference]: Start difference. First operand 169 states and 169 transitions. Second operand 168 states. [2018-07-23 13:55:17,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:17,540 INFO L93 Difference]: Finished difference Result 172 states and 172 transitions. [2018-07-23 13:55:17,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 168 states. [2018-07-23 13:55:17,540 INFO L78 Accepts]: Start accepts. Automaton has 168 states. Word has length 168 [2018-07-23 13:55:17,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:17,541 INFO L225 Difference]: With dead ends: 172 [2018-07-23 13:55:17,541 INFO L226 Difference]: Without dead ends: 170 [2018-07-23 13:55:17,542 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 166 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=14028, Invalid=14028, Unknown=0, NotChecked=0, Total=28056 [2018-07-23 13:55:17,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2018-07-23 13:55:17,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2018-07-23 13:55:17,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2018-07-23 13:55:17,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 170 transitions. [2018-07-23 13:55:17,546 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 170 transitions. Word has length 168 [2018-07-23 13:55:17,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:17,546 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 170 transitions. [2018-07-23 13:55:17,546 INFO L472 AbstractCegarLoop]: Interpolant automaton has 168 states. [2018-07-23 13:55:17,546 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 170 transitions. [2018-07-23 13:55:17,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2018-07-23 13:55:17,547 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:17,547 INFO L357 BasicCegarLoop]: trace histogram [166, 1, 1, 1] [2018-07-23 13:55:17,547 INFO L414 AbstractCegarLoop]: === Iteration 167 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:17,547 INFO L82 PathProgramCache]: Analyzing trace with hash -629409332, now seen corresponding path program 166 times [2018-07-23 13:55:17,547 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:18,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:20,819 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 13:55:20,819 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:20,820 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [168] total 168 [2018-07-23 13:55:20,820 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:20,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:20,820 INFO L185 omatonBuilderFactory]: Interpolants [72979#false, 72978#true, 72981#(and (not (= main_x main_y)) (<= main_a_x 1)), 72980#(and (not (= main_x main_y)) (<= main_a_x 0)), 72983#(and (not (= main_x main_y)) (<= main_a_x 3)), 72982#(and (not (= main_x main_y)) (<= main_a_x 2)), 72985#(and (<= main_a_x 5) (not (= main_x main_y))), 72984#(and (<= main_a_x 4) (not (= main_x main_y))), 72987#(and (<= main_a_x 7) (not (= main_x main_y))), 72986#(and (not (= main_x main_y)) (<= main_a_x 6)), 72989#(and (not (= main_x main_y)) (<= main_a_x 9)), 72988#(and (not (= main_x main_y)) (<= main_a_x 8)), 72991#(and (not (= main_x main_y)) (<= main_a_x 11)), 72990#(and (<= main_a_x 10) (not (= main_x main_y))), 72993#(and (<= main_a_x 13) (not (= main_x main_y))), 72992#(and (not (= main_x main_y)) (<= main_a_x 12)), 72995#(and (<= main_a_x 15) (not (= main_x main_y))), 72994#(and (not (= main_x main_y)) (<= main_a_x 14)), 72997#(and (not (= main_x main_y)) (<= main_a_x 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(not (= main_x main_y)) (<= main_a_x 126)), 73109#(and (<= main_a_x 129) (not (= main_x main_y))), 73108#(and (<= main_a_x 128) (not (= main_x main_y))), 73111#(and (not (= main_x main_y)) (<= main_a_x 131)), 73110#(and (not (= main_x main_y)) (<= main_a_x 130)), 73113#(and (not (= main_x main_y)) (<= main_a_x 133)), 73112#(and (not (= main_x main_y)) (<= main_a_x 132)), 73115#(and (<= main_a_x 135) (not (= main_x main_y))), 73114#(and (not (= main_x main_y)) (<= main_a_x 134)), 73117#(and (not (= main_x main_y)) (<= main_a_x 137)), 73116#(and (<= main_a_x 136) (not (= main_x main_y))), 73119#(and (not (= main_x main_y)) (<= main_a_x 139)), 73118#(and (not (= main_x main_y)) (<= main_a_x 138)), 73121#(and (<= main_a_x 141) (not (= main_x main_y))), 73120#(and (<= main_a_x 140) (not (= main_x main_y))), 73123#(and (<= main_a_x 143) (not (= main_x main_y))), 73122#(and (not (= main_x main_y)) (<= main_a_x 142)), 73125#(and (not (= main_x main_y)) (<= main_a_x 145)), 73124#(and (<= main_a_x 144) (not (= main_x main_y))), 73127#(and (not (= main_x main_y)) (<= main_a_x 147)), 73126#(and (<= main_a_x 146) (not (= main_x main_y))), 73129#(and (not (= main_x main_y)) (<= main_a_x 149)), 73128#(and (<= main_a_x 148) (not (= main_x main_y))), 73131#(and (<= main_a_x 151) (not (= main_x main_y))), 73130#(and (not (= main_x main_y)) (<= main_a_x 150)), 73133#(and (not (= main_x main_y)) (<= main_a_x 153)), 73132#(and (not (= main_x main_y)) (<= main_a_x 152)), 73135#(and (not (= main_x main_y)) (<= main_a_x 155)), 73134#(and (<= main_a_x 154) (not (= main_x main_y))), 73137#(and (<= main_a_x 157) (not (= main_x main_y))), 73136#(and (<= main_a_x 156) (not (= main_x main_y))), 73139#(and (<= main_a_x 159) (not (= main_x main_y))), 73138#(and (<= main_a_x 158) (not (= main_x main_y))), 73141#(and (not (= main_x main_y)) (<= main_a_x 161)), 73140#(and (<= main_a_x 160) (not (= main_x main_y))), 73143#(and (not (= main_x main_y)) (<= main_a_x 163)), 73142#(and (<= main_a_x 162) (not (= main_x main_y))), 73145#(and (<= main_a_x 165) (not (= main_x main_y))), 73144#(and (not (= main_x main_y)) (<= main_a_x 164)), 73146#(<= main_a_x 166)] [2018-07-23 13:55:20,821 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 13:55:20,822 INFO L450 AbstractCegarLoop]: Interpolant automaton has 169 states [2018-07-23 13:55:20,824 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 169 interpolants. [2018-07-23 13:55:20,825 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14196, Invalid=14196, Unknown=0, NotChecked=0, Total=28392 [2018-07-23 13:55:20,826 INFO L87 Difference]: Start difference. First operand 170 states and 170 transitions. Second operand 169 states. [2018-07-23 13:55:21,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:21,595 INFO L93 Difference]: Finished difference Result 173 states and 173 transitions. [2018-07-23 13:55:21,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 169 states. [2018-07-23 13:55:21,595 INFO L78 Accepts]: Start accepts. Automaton has 169 states. Word has length 169 [2018-07-23 13:55:21,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:21,596 INFO L225 Difference]: With dead ends: 173 [2018-07-23 13:55:21,596 INFO L226 Difference]: Without dead ends: 171 [2018-07-23 13:55:21,598 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 167 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=14196, Invalid=14196, Unknown=0, NotChecked=0, Total=28392 [2018-07-23 13:55:21,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2018-07-23 13:55:21,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2018-07-23 13:55:21,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2018-07-23 13:55:21,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 171 transitions. [2018-07-23 13:55:21,603 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 171 transitions. Word has length 169 [2018-07-23 13:55:21,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:21,604 INFO L471 AbstractCegarLoop]: Abstraction has 171 states and 171 transitions. [2018-07-23 13:55:21,604 INFO L472 AbstractCegarLoop]: Interpolant automaton has 169 states. [2018-07-23 13:55:21,604 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 171 transitions. [2018-07-23 13:55:21,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2018-07-23 13:55:21,604 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:21,604 INFO L357 BasicCegarLoop]: trace histogram [167, 1, 1, 1] [2018-07-23 13:55:21,604 INFO L414 AbstractCegarLoop]: === Iteration 168 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:21,605 INFO L82 PathProgramCache]: Analyzing trace with hash 1963162567, now seen corresponding path program 167 times [2018-07-23 13:55:21,605 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:22,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:24,547 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 13:55:24,548 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:24,548 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [169] total 169 [2018-07-23 13:55:24,548 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:24,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:24,548 INFO L185 omatonBuilderFactory]: Interpolants [73985#(and (<= main_a_x 148) (not (= main_x main_y))), 73984#(and (not (= main_x main_y)) (<= main_a_x 147)), 73987#(and (not (= main_x main_y)) (<= main_a_x 150)), 73986#(and (not (= main_x main_y)) (<= main_a_x 149)), 73989#(and (not (= main_x main_y)) (<= main_a_x 152)), 73988#(and (<= main_a_x 151) (not (= main_x main_y))), 73991#(and (<= main_a_x 154) (not (= main_x main_y))), 73990#(and (not (= main_x main_y)) (<= main_a_x 153)), 73993#(and (<= main_a_x 156) (not (= main_x main_y))), 73992#(and (not (= main_x main_y)) (<= main_a_x 155)), 73995#(and (<= main_a_x 158) (not (= main_x main_y))), 73994#(and (<= main_a_x 157) (not (= main_x main_y))), 73997#(and (<= main_a_x 160) (not (= main_x main_y))), 73996#(and (<= main_a_x 159) (not (= main_x main_y))), 73999#(and (<= main_a_x 162) (not (= main_x main_y))), 73998#(and (not (= main_x main_y)) (<= main_a_x 161)), 74001#(and (not (= main_x main_y)) (<= main_a_x 164)), 74000#(and (not (= main_x main_y)) (<= main_a_x 163)), 74003#(and (<= main_a_x 166) (not (= main_x main_y))), 74002#(and (<= main_a_x 165) (not (= main_x main_y))), 74004#(<= main_a_x 167), 73835#true, 73837#(and (not (= main_x main_y)) (<= main_a_x 0)), 73836#false, 73839#(and (not (= main_x main_y)) (<= main_a_x 2)), 73838#(and (not (= main_x main_y)) (<= main_a_x 1)), 73841#(and (<= main_a_x 4) (not (= main_x main_y))), 73840#(and (not (= main_x main_y)) (<= main_a_x 3)), 73843#(and (not (= main_x main_y)) (<= main_a_x 6)), 73842#(and (<= main_a_x 5) (not (= main_x main_y))), 73845#(and (not (= main_x main_y)) (<= main_a_x 8)), 73844#(and (<= main_a_x 7) (not (= main_x main_y))), 73847#(and (<= main_a_x 10) (not (= main_x main_y))), 73846#(and (not (= main_x main_y)) (<= main_a_x 9)), 73849#(and (not (= main_x main_y)) (<= main_a_x 12)), 73848#(and (not (= main_x main_y)) (<= main_a_x 11)), 73851#(and (not (= main_x main_y)) (<= main_a_x 14)), 73850#(and (<= main_a_x 13) (not (= main_x main_y))), 73853#(and (not (= main_x main_y)) (<= main_a_x 16)), 73852#(and (<= main_a_x 15) (not (= main_x main_y))), 73855#(and (<= main_a_x 18) (not (= main_x main_y))), 73854#(and (not (= main_x main_y)) (<= main_a_x 17)), 73857#(and (not (= main_x main_y)) (<= main_a_x 20)), 73856#(and (<= main_a_x 19) (not (= main_x main_y))), 73859#(and (not (= main_x main_y)) (<= main_a_x 22)), 73858#(and (not (= main_x main_y)) (<= main_a_x 21)), 73861#(and (not (= main_x main_y)) (<= main_a_x 24)), 73860#(and (<= main_a_x 23) (not (= main_x main_y))), 73863#(and (not (= main_x main_y)) (<= main_a_x 26)), 73862#(and (<= main_a_x 25) (not (= main_x main_y))), 73865#(and (not (= main_x main_y)) (<= main_a_x 28)), 73864#(and (not (= main_x main_y)) (<= main_a_x 27)), 73867#(and (<= main_a_x 30) (not (= main_x main_y))), 73866#(and (not (= main_x main_y)) (<= main_a_x 29)), 73869#(and (not (= main_x main_y)) (<= main_a_x 32)), 73868#(and (<= main_a_x 31) (not (= main_x main_y))), 73871#(and (not (= main_x main_y)) (<= main_a_x 34)), 73870#(and (not (= main_x main_y)) (<= main_a_x 33)), 73873#(and (not (= main_x main_y)) (<= main_a_x 36)), 73872#(and (<= main_a_x 35) (not (= main_x main_y))), 73875#(and (not (= main_x main_y)) (<= main_a_x 38)), 73874#(and (<= main_a_x 37) (not (= main_x main_y))), 73877#(and (<= main_a_x 40) (not (= main_x main_y))), 73876#(and (<= main_a_x 39) (not (= main_x main_y))), 73879#(and (not (= main_x main_y)) (<= main_a_x 42)), 73878#(and (not (= main_x main_y)) (<= main_a_x 41)), 73881#(and (<= main_a_x 44) (not (= main_x main_y))), 73880#(and (<= main_a_x 43) (not (= main_x main_y))), 73883#(and (<= main_a_x 46) (not (= main_x main_y))), 73882#(and (<= main_a_x 45) (not (= main_x main_y))), 73885#(and (<= main_a_x 48) (not (= main_x main_y))), 73884#(and (<= main_a_x 47) (not (= main_x main_y))), 73887#(and (not (= main_x main_y)) (<= main_a_x 50)), 73886#(and (not (= main_x main_y)) (<= main_a_x 49)), 73889#(and (not (= main_x main_y)) (<= main_a_x 52)), 73888#(and (<= main_a_x 51) (not (= main_x main_y))), 73891#(and (<= main_a_x 54) (not (= main_x main_y))), 73890#(and (<= main_a_x 53) (not (= main_x main_y))), 73893#(and (not (= main_x main_y)) (<= main_a_x 56)), 73892#(and (not (= main_x main_y)) (<= main_a_x 55)), 73895#(and (not (= main_x main_y)) (<= main_a_x 58)), 73894#(and (not (= main_x main_y)) (<= main_a_x 57)), 73897#(and (<= main_a_x 60) (not (= main_x main_y))), 73896#(and (not (= main_x main_y)) (<= main_a_x 59)), 73899#(and (not (= main_x main_y)) (<= main_a_x 62)), 73898#(and (not (= main_x main_y)) (<= main_a_x 61)), 73901#(and (<= main_a_x 64) (not (= main_x main_y))), 73900#(and (<= main_a_x 63) (not (= main_x main_y))), 73903#(and (<= main_a_x 66) (not (= main_x main_y))), 73902#(and (<= main_a_x 65) (not (= main_x main_y))), 73905#(and (not (= main_x main_y)) (<= main_a_x 68)), 73904#(and (<= main_a_x 67) (not (= main_x main_y))), 73907#(and (<= main_a_x 70) (not (= main_x main_y))), 73906#(and (<= main_a_x 69) (not (= main_x main_y))), 73909#(and (not (= main_x main_y)) (<= main_a_x 72)), 73908#(and (<= main_a_x 71) (not (= main_x main_y))), 73911#(and (<= main_a_x 74) (not (= main_x main_y))), 73910#(and (not (= main_x main_y)) (<= main_a_x 73)), 73913#(and (not (= main_x main_y)) (<= main_a_x 76)), 73912#(and (<= main_a_x 75) (not (= main_x main_y))), 73915#(and (<= main_a_x 78) (not (= main_x main_y))), 73914#(and (not (= main_x main_y)) (<= main_a_x 77)), 73917#(and (not (= main_x main_y)) (<= main_a_x 80)), 73916#(and (<= main_a_x 79) (not (= main_x main_y))), 73919#(and (not (= main_x main_y)) (<= main_a_x 82)), 73918#(and (not (= main_x main_y)) (<= main_a_x 81)), 73921#(and (<= main_a_x 84) (not (= main_x main_y))), 73920#(and (not (= main_x main_y)) (<= main_a_x 83)), 73923#(and (not (= main_x main_y)) (<= main_a_x 86)), 73922#(and (not (= main_x main_y)) (<= main_a_x 85)), 73925#(and (not (= main_x main_y)) (<= main_a_x 88)), 73924#(and (<= main_a_x 87) (not (= main_x main_y))), 73927#(and (not (= main_x main_y)) (<= main_a_x 90)), 73926#(and (<= main_a_x 89) (not (= main_x main_y))), 73929#(and (not (= main_x main_y)) (<= main_a_x 92)), 73928#(and (<= main_a_x 91) (not (= main_x main_y))), 73931#(and (<= main_a_x 94) (not (= main_x main_y))), 73930#(and (not (= main_x main_y)) (<= main_a_x 93)), 73933#(and (not (= main_x main_y)) (<= main_a_x 96)), 73932#(and (<= main_a_x 95) (not (= main_x main_y))), 73935#(and (not (= main_x main_y)) (<= main_a_x 98)), 73934#(and (<= main_a_x 97) (not (= main_x main_y))), 73937#(and (<= main_a_x 100) (not (= main_x main_y))), 73936#(and (<= main_a_x 99) (not (= main_x main_y))), 73939#(and (not (= main_x main_y)) (<= main_a_x 102)), 73938#(and (not (= main_x main_y)) (<= main_a_x 101)), 73941#(and (<= main_a_x 104) (not (= main_x main_y))), 73940#(and (not (= main_x main_y)) (<= main_a_x 103)), 73943#(and (not (= main_x main_y)) (<= main_a_x 106)), 73942#(and (<= main_a_x 105) (not (= main_x main_y))), 73945#(and (not (= main_x main_y)) (<= main_a_x 108)), 73944#(and (not (= main_x main_y)) (<= main_a_x 107)), 73947#(and (<= main_a_x 110) (not (= main_x main_y))), 73946#(and (not (= main_x main_y)) (<= main_a_x 109)), 73949#(and (<= main_a_x 112) (not (= main_x main_y))), 73948#(and (not (= main_x main_y)) (<= main_a_x 111)), 73951#(and (not (= main_x main_y)) (<= main_a_x 114)), 73950#(and (<= main_a_x 113) (not (= main_x main_y))), 73953#(and (not (= main_x main_y)) (<= main_a_x 116)), 73952#(and (not (= main_x main_y)) (<= main_a_x 115)), 73955#(and (not (= main_x main_y)) (<= main_a_x 118)), 73954#(and (<= main_a_x 117) (not (= main_x main_y))), 73957#(and (not (= main_x main_y)) (<= main_a_x 120)), 73956#(and (not (= main_x main_y)) (<= main_a_x 119)), 73959#(and (not (= main_x main_y)) (<= main_a_x 122)), 73958#(and (not (= main_x main_y)) (<= main_a_x 121)), 73961#(and (not (= main_x main_y)) (<= main_a_x 124)), 73960#(and (<= main_a_x 123) (not (= main_x main_y))), 73963#(and (not (= main_x main_y)) (<= main_a_x 126)), 73962#(and (not (= main_x main_y)) (<= main_a_x 125)), 73965#(and (<= main_a_x 128) (not (= main_x main_y))), 73964#(and (not (= main_x main_y)) (<= main_a_x 127)), 73967#(and (not (= main_x main_y)) (<= main_a_x 130)), 73966#(and (<= main_a_x 129) (not (= main_x main_y))), 73969#(and (not (= main_x main_y)) (<= main_a_x 132)), 73968#(and (not (= main_x main_y)) (<= main_a_x 131)), 73971#(and (not (= main_x main_y)) (<= main_a_x 134)), 73970#(and (not (= main_x main_y)) (<= main_a_x 133)), 73973#(and (<= main_a_x 136) (not (= main_x main_y))), 73972#(and (<= main_a_x 135) (not (= main_x main_y))), 73975#(and (not (= main_x main_y)) (<= main_a_x 138)), 73974#(and (not (= main_x main_y)) (<= main_a_x 137)), 73977#(and (<= main_a_x 140) (not (= main_x main_y))), 73976#(and (not (= main_x main_y)) (<= main_a_x 139)), 73979#(and (not (= main_x main_y)) (<= main_a_x 142)), 73978#(and (<= main_a_x 141) (not (= main_x main_y))), 73981#(and (<= main_a_x 144) (not (= main_x main_y))), 73980#(and (<= main_a_x 143) (not (= main_x main_y))), 73983#(and (<= main_a_x 146) (not (= main_x main_y))), 73982#(and (not (= main_x main_y)) (<= main_a_x 145))] [2018-07-23 13:55:24,549 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 13:55:24,549 INFO L450 AbstractCegarLoop]: Interpolant automaton has 170 states [2018-07-23 13:55:24,551 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 170 interpolants. [2018-07-23 13:55:24,552 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14365, Invalid=14365, Unknown=0, NotChecked=0, Total=28730 [2018-07-23 13:55:24,553 INFO L87 Difference]: Start difference. First operand 171 states and 171 transitions. Second operand 170 states. [2018-07-23 13:55:24,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:24,943 INFO L93 Difference]: Finished difference Result 174 states and 174 transitions. [2018-07-23 13:55:24,944 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 170 states. [2018-07-23 13:55:24,944 INFO L78 Accepts]: Start accepts. Automaton has 170 states. Word has length 170 [2018-07-23 13:55:24,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:24,944 INFO L225 Difference]: With dead ends: 174 [2018-07-23 13:55:24,944 INFO L226 Difference]: Without dead ends: 172 [2018-07-23 13:55:24,945 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=14365, Invalid=14365, Unknown=0, NotChecked=0, Total=28730 [2018-07-23 13:55:24,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2018-07-23 13:55:24,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2018-07-23 13:55:24,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2018-07-23 13:55:24,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 172 transitions. [2018-07-23 13:55:24,950 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 172 transitions. Word has length 170 [2018-07-23 13:55:24,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:24,950 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 172 transitions. [2018-07-23 13:55:24,950 INFO L472 AbstractCegarLoop]: Interpolant automaton has 170 states. [2018-07-23 13:55:24,950 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 172 transitions. [2018-07-23 13:55:24,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2018-07-23 13:55:24,951 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:24,951 INFO L357 BasicCegarLoop]: trace histogram [168, 1, 1, 1] [2018-07-23 13:55:24,951 INFO L414 AbstractCegarLoop]: === Iteration 169 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:24,951 INFO L82 PathProgramCache]: Analyzing trace with hash 728512812, now seen corresponding path program 168 times [2018-07-23 13:55:24,951 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:26,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:28,415 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 13:55:28,416 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:28,416 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [170] total 170 [2018-07-23 13:55:28,416 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:28,416 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 13:55:28,417 INFO L185 omatonBuilderFactory]: Interpolants [74753#(and (<= main_a_x 54) (not (= main_x main_y))), 74752#(and (<= main_a_x 53) (not (= main_x main_y))), 74755#(and (not (= main_x main_y)) (<= main_a_x 56)), 74754#(and (not (= main_x main_y)) (<= main_a_x 55)), 74757#(and (not (= main_x main_y)) (<= main_a_x 58)), 74756#(and (not (= main_x main_y)) (<= main_a_x 57)), 74759#(and (<= main_a_x 60) (not (= main_x main_y))), 74758#(and (not (= main_x main_y)) (<= main_a_x 59)), 74761#(and (not (= main_x main_y)) (<= main_a_x 62)), 74760#(and (not (= main_x main_y)) (<= main_a_x 61)), 74763#(and (<= main_a_x 64) (not (= main_x main_y))), 74762#(and (<= main_a_x 63) (not (= main_x main_y))), 74765#(and (<= main_a_x 66) (not (= main_x main_y))), 74764#(and (<= main_a_x 65) (not (= main_x main_y))), 74767#(and (not (= main_x main_y)) (<= main_a_x 68)), 74766#(and (<= main_a_x 67) (not (= main_x main_y))), 74769#(and (<= main_a_x 70) (not (= main_x main_y))), 74768#(and (<= main_a_x 69) (not (= main_x main_y))), 74771#(and (not (= main_x main_y)) (<= main_a_x 72)), 74770#(and (<= main_a_x 71) (not (= main_x main_y))), 74773#(and (<= main_a_x 74) (not (= main_x main_y))), 74772#(and (not (= main_x main_y)) (<= main_a_x 73)), 74775#(and (not (= main_x main_y)) (<= main_a_x 76)), 74774#(and (<= main_a_x 75) (not (= main_x main_y))), 74777#(and (<= main_a_x 78) (not (= main_x main_y))), 74776#(and (not (= main_x main_y)) (<= main_a_x 77)), 74779#(and (not (= main_x main_y)) (<= main_a_x 80)), 74778#(and (<= main_a_x 79) (not (= main_x main_y))), 74781#(and (not (= main_x main_y)) (<= main_a_x 82)), 74780#(and (not (= main_x main_y)) (<= main_a_x 81)), 74783#(and (<= main_a_x 84) (not (= main_x main_y))), 74782#(and (not (= main_x main_y)) (<= main_a_x 83)), 74785#(and (not (= main_x main_y)) (<= main_a_x 86)), 74784#(and (not (= main_x main_y)) (<= main_a_x 85)), 74787#(and (not (= main_x main_y)) (<= main_a_x 88)), 74786#(and (<= main_a_x 87) (not (= main_x main_y))), 74789#(and (not (= main_x main_y)) (<= main_a_x 90)), 74788#(and (<= main_a_x 89) (not (= main_x main_y))), 74791#(and (not (= main_x main_y)) (<= main_a_x 92)), 74790#(and (<= main_a_x 91) (not (= main_x main_y))), 74793#(and (<= main_a_x 94) (not (= main_x main_y))), 74792#(and (not (= main_x main_y)) (<= main_a_x 93)), 74795#(and (not (= main_x main_y)) (<= main_a_x 96)), 74794#(and (<= main_a_x 95) (not (= main_x main_y))), 74797#(and (not (= main_x main_y)) (<= main_a_x 98)), 74796#(and (<= main_a_x 97) (not (= main_x main_y))), 74799#(and (<= main_a_x 100) (not (= main_x main_y))), 74798#(and (<= main_a_x 99) (not (= main_x main_y))), 74801#(and (not (= main_x main_y)) (<= main_a_x 102)), 74800#(and (not (= main_x main_y)) (<= main_a_x 101)), 74803#(and (<= main_a_x 104) (not (= main_x main_y))), 74802#(and (not (= main_x main_y)) (<= main_a_x 103)), 74805#(and (not (= main_x main_y)) (<= main_a_x 106)), 74804#(and (<= main_a_x 105) (not (= main_x main_y))), 74807#(and (not (= main_x main_y)) (<= main_a_x 108)), 74806#(and (not (= main_x main_y)) (<= main_a_x 107)), 74809#(and (<= main_a_x 110) (not (= main_x main_y))), 74808#(and (not (= main_x main_y)) (<= main_a_x 109)), 74811#(and (<= main_a_x 112) (not (= main_x main_y))), 74810#(and (not (= main_x main_y)) (<= main_a_x 111)), 74813#(and (not (= main_x main_y)) (<= main_a_x 114)), 74812#(and (<= main_a_x 113) (not (= main_x main_y))), 74815#(and (not (= main_x main_y)) (<= main_a_x 116)), 74814#(and (not (= main_x main_y)) (<= main_a_x 115)), 74817#(and (not (= main_x main_y)) (<= main_a_x 118)), 74816#(and (<= main_a_x 117) (not (= main_x main_y))), 74819#(and (not (= main_x main_y)) (<= main_a_x 120)), 74818#(and (not (= main_x main_y)) (<= main_a_x 119)), 74821#(and (not (= main_x main_y)) (<= main_a_x 122)), 74820#(and (not (= main_x main_y)) (<= main_a_x 121)), 74823#(and (not (= main_x main_y)) (<= main_a_x 124)), 74822#(and (<= main_a_x 123) (not (= main_x main_y))), 74825#(and (not (= main_x main_y)) (<= main_a_x 126)), 74824#(and (not (= main_x main_y)) (<= main_a_x 125)), 74827#(and (<= main_a_x 128) (not (= main_x main_y))), 74826#(and (not (= main_x main_y)) (<= main_a_x 127)), 74829#(and (not (= main_x main_y)) (<= main_a_x 130)), 74828#(and (<= main_a_x 129) (not (= main_x main_y))), 74831#(and (not (= main_x main_y)) (<= main_a_x 132)), 74830#(and (not (= main_x main_y)) (<= main_a_x 131)), 74833#(and (not (= main_x main_y)) (<= main_a_x 134)), 74832#(and (not (= main_x main_y)) (<= main_a_x 133)), 74835#(and (<= main_a_x 136) (not (= main_x main_y))), 74834#(and (<= main_a_x 135) (not (= main_x main_y))), 74837#(and (not (= main_x main_y)) (<= main_a_x 138)), 74836#(and (not (= main_x main_y)) (<= main_a_x 137)), 74839#(and (<= main_a_x 140) (not (= main_x main_y))), 74838#(and (not (= main_x main_y)) (<= main_a_x 139)), 74841#(and (not (= main_x main_y)) (<= main_a_x 142)), 74840#(and (<= main_a_x 141) (not (= main_x main_y))), 74843#(and (<= main_a_x 144) (not (= main_x main_y))), 74842#(and (<= main_a_x 143) (not (= main_x main_y))), 74845#(and (<= main_a_x 146) (not (= main_x main_y))), 74844#(and (not (= main_x main_y)) (<= main_a_x 145)), 74847#(and (<= main_a_x 148) (not (= main_x main_y))), 74846#(and (not (= main_x main_y)) (<= main_a_x 147)), 74849#(and (not (= main_x main_y)) (<= main_a_x 150)), 74848#(and (not (= main_x main_y)) (<= main_a_x 149)), 74851#(and (not (= main_x main_y)) (<= main_a_x 152)), 74850#(and (<= main_a_x 151) (not (= main_x main_y))), 74853#(and (<= main_a_x 154) (not (= main_x main_y))), 74852#(and (not (= main_x main_y)) (<= main_a_x 153)), 74855#(and (<= main_a_x 156) (not (= main_x main_y))), 74854#(and (not (= main_x main_y)) (<= main_a_x 155)), 74857#(and (<= main_a_x 158) (not (= main_x main_y))), 74856#(and (<= main_a_x 157) (not (= main_x main_y))), 74859#(and (<= main_a_x 160) (not (= main_x main_y))), 74858#(and (<= main_a_x 159) (not (= main_x main_y))), 74861#(and (<= main_a_x 162) (not (= main_x main_y))), 74860#(and (not (= main_x main_y)) (<= main_a_x 161)), 74863#(and (not (= main_x main_y)) (<= main_a_x 164)), 74862#(and (not (= main_x main_y)) (<= main_a_x 163)), 74865#(and (<= main_a_x 166) (not (= main_x main_y))), 74864#(and (<= main_a_x 165) (not (= main_x main_y))), 74867#(<= main_a_x 168), 74866#(and (not (= main_x main_y)) (<= main_a_x 167)), 74697#true, 74699#(and (not (= main_x main_y)) (<= main_a_x 0)), 74698#false, 74701#(and (not (= main_x main_y)) (<= main_a_x 2)), 74700#(and (not (= main_x main_y)) (<= main_a_x 1)), 74703#(and (<= main_a_x 4) (not (= main_x main_y))), 74702#(and (not (= main_x main_y)) (<= main_a_x 3)), 74705#(and (not (= main_x main_y)) (<= main_a_x 6)), 74704#(and (<= main_a_x 5) (not (= main_x main_y))), 74707#(and (not (= main_x main_y)) (<= main_a_x 8)), 74706#(and (<= main_a_x 7) (not (= main_x main_y))), 74709#(and (<= main_a_x 10) (not (= main_x main_y))), 74708#(and (not (= main_x main_y)) (<= main_a_x 9)), 74711#(and (not (= main_x main_y)) (<= main_a_x 12)), 74710#(and (not (= main_x main_y)) (<= main_a_x 11)), 74713#(and (not (= main_x main_y)) (<= main_a_x 14)), 74712#(and (<= main_a_x 13) (not (= main_x main_y))), 74715#(and (not (= main_x main_y)) (<= main_a_x 16)), 74714#(and (<= main_a_x 15) (not (= main_x main_y))), 74717#(and (<= main_a_x 18) (not (= main_x main_y))), 74716#(and (not (= main_x main_y)) (<= main_a_x 17)), 74719#(and (not (= main_x main_y)) (<= main_a_x 20)), 74718#(and (<= main_a_x 19) (not (= main_x main_y))), 74721#(and (not (= main_x main_y)) (<= main_a_x 22)), 74720#(and (not (= main_x main_y)) (<= main_a_x 21)), 74723#(and (not (= main_x main_y)) (<= main_a_x 24)), 74722#(and (<= main_a_x 23) (not (= main_x main_y))), 74725#(and (not (= main_x main_y)) (<= main_a_x 26)), 74724#(and (<= main_a_x 25) (not (= main_x main_y))), 74727#(and (not (= main_x main_y)) (<= main_a_x 28)), 74726#(and (not (= main_x main_y)) (<= main_a_x 27)), 74729#(and (<= main_a_x 30) (not (= main_x main_y))), 74728#(and (not (= main_x main_y)) (<= main_a_x 29)), 74731#(and (not (= main_x main_y)) (<= main_a_x 32)), 74730#(and (<= main_a_x 31) (not (= main_x main_y))), 74733#(and (not (= main_x main_y)) (<= main_a_x 34)), 74732#(and (not (= main_x main_y)) (<= main_a_x 33)), 74735#(and (not (= main_x main_y)) (<= main_a_x 36)), 74734#(and (<= main_a_x 35) (not (= main_x main_y))), 74737#(and (not (= main_x main_y)) (<= main_a_x 38)), 74736#(and (<= main_a_x 37) (not (= main_x main_y))), 74739#(and (<= main_a_x 40) (not (= main_x main_y))), 74738#(and (<= main_a_x 39) (not (= main_x main_y))), 74741#(and (not (= main_x main_y)) (<= main_a_x 42)), 74740#(and (not (= main_x main_y)) (<= main_a_x 41)), 74743#(and (<= main_a_x 44) (not (= main_x main_y))), 74742#(and (<= main_a_x 43) (not (= main_x main_y))), 74745#(and (<= main_a_x 46) (not (= main_x main_y))), 74744#(and (<= main_a_x 45) (not (= main_x main_y))), 74747#(and (<= main_a_x 48) (not (= main_x main_y))), 74746#(and (<= main_a_x 47) (not (= main_x main_y))), 74749#(and (not (= main_x main_y)) (<= main_a_x 50)), 74748#(and (not (= main_x main_y)) (<= main_a_x 49)), 74751#(and (not (= main_x main_y)) (<= main_a_x 52)), 74750#(and (<= main_a_x 51) (not (= main_x main_y)))] [2018-07-23 13:55:28,418 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 13:55:28,418 INFO L450 AbstractCegarLoop]: Interpolant automaton has 171 states [2018-07-23 13:55:28,420 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 171 interpolants. [2018-07-23 13:55:28,421 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14535, Invalid=14535, Unknown=0, NotChecked=0, Total=29070 [2018-07-23 13:55:28,421 INFO L87 Difference]: Start difference. First operand 172 states and 172 transitions. Second operand 171 states. [2018-07-23 13:55:28,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:28,819 INFO L93 Difference]: Finished difference Result 175 states and 175 transitions. [2018-07-23 13:55:28,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 171 states. [2018-07-23 13:55:28,819 INFO L78 Accepts]: Start accepts. Automaton has 171 states. Word has length 171 [2018-07-23 13:55:28,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:28,820 INFO L225 Difference]: With dead ends: 175 [2018-07-23 13:55:28,820 INFO L226 Difference]: Without dead ends: 173 [2018-07-23 13:55:28,821 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 169 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=14535, Invalid=14535, Unknown=0, NotChecked=0, Total=29070 [2018-07-23 13:55:28,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2018-07-23 13:55:28,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2018-07-23 13:55:28,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2018-07-23 13:55:28,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 173 transitions. [2018-07-23 13:55:28,826 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 173 transitions. Word has length 171 [2018-07-23 13:55:28,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:28,826 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 173 transitions. [2018-07-23 13:55:28,826 INFO L472 AbstractCegarLoop]: Interpolant automaton has 171 states. [2018-07-23 13:55:28,826 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 173 transitions. [2018-07-23 13:55:28,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2018-07-23 13:55:28,826 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:28,826 INFO L357 BasicCegarLoop]: trace histogram [169, 1, 1, 1] [2018-07-23 13:55:28,826 INFO L414 AbstractCegarLoop]: === Iteration 170 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:28,827 INFO L82 PathProgramCache]: Analyzing trace with hash 1109076071, now seen corresponding path program 169 times [2018-07-23 13:55:28,827 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:29,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:32,138 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 13:55:32,138 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:32,138 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [171] total 171 [2018-07-23 13:55:32,139 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:32,139 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 13:55:32,139 INFO L185 omatonBuilderFactory]: Interpolants [75565#false, 75564#true, 75567#(and (not (= main_x main_y)) (<= main_a_x 1)), 75566#(and (not (= main_x main_y)) (<= main_a_x 0)), 75569#(and (not (= main_x main_y)) (<= main_a_x 3)), 75568#(and (not (= main_x main_y)) (<= main_a_x 2)), 75571#(and (<= main_a_x 5) (not (= main_x main_y))), 75570#(and (<= main_a_x 4) (not (= main_x main_y))), 75573#(and (<= main_a_x 7) (not (= main_x main_y))), 75572#(and (not (= main_x main_y)) (<= main_a_x 6)), 75575#(and (not (= main_x main_y)) (<= main_a_x 9)), 75574#(and (not (= main_x main_y)) (<= main_a_x 8)), 75577#(and (not (= main_x main_y)) (<= main_a_x 11)), 75576#(and (<= main_a_x 10) (not (= main_x main_y))), 75579#(and (<= main_a_x 13) (not (= main_x main_y))), 75578#(and (not (= main_x main_y)) (<= main_a_x 12)), 75581#(and (<= main_a_x 15) (not (= main_x main_y))), 75580#(and (not (= main_x main_y)) (<= main_a_x 14)), 75583#(and (not (= main_x main_y)) (<= main_a_x 17)), 75582#(and (not (= main_x main_y)) (<= main_a_x 16)), 75585#(and (<= main_a_x 19) (not (= main_x main_y))), 75584#(and (<= main_a_x 18) (not (= main_x main_y))), 75587#(and (not (= main_x main_y)) (<= main_a_x 21)), 75586#(and (not (= main_x main_y)) (<= main_a_x 20)), 75589#(and (<= main_a_x 23) (not (= main_x main_y))), 75588#(and (not (= main_x main_y)) (<= main_a_x 22)), 75591#(and (<= main_a_x 25) (not (= main_x main_y))), 75590#(and (not (= main_x main_y)) (<= main_a_x 24)), 75593#(and (not (= main_x main_y)) (<= main_a_x 27)), 75592#(and (not (= main_x main_y)) (<= main_a_x 26)), 75595#(and (not (= main_x main_y)) (<= main_a_x 29)), 75594#(and (not (= main_x main_y)) (<= main_a_x 28)), 75597#(and (<= main_a_x 31) (not (= main_x main_y))), 75596#(and (<= main_a_x 30) (not (= main_x main_y))), 75599#(and (not (= main_x main_y)) (<= main_a_x 33)), 75598#(and (not (= main_x main_y)) (<= main_a_x 32)), 75601#(and (<= main_a_x 35) (not (= main_x main_y))), 75600#(and (not (= main_x main_y)) (<= main_a_x 34)), 75603#(and (<= main_a_x 37) (not (= main_x main_y))), 75602#(and (not (= main_x main_y)) (<= main_a_x 36)), 75605#(and (<= main_a_x 39) (not (= main_x main_y))), 75604#(and (not (= main_x main_y)) (<= main_a_x 38)), 75607#(and (not (= main_x main_y)) (<= main_a_x 41)), 75606#(and (<= main_a_x 40) (not (= main_x main_y))), 75609#(and (<= main_a_x 43) (not (= main_x main_y))), 75608#(and (not (= main_x main_y)) (<= main_a_x 42)), 75611#(and (<= main_a_x 45) (not (= main_x main_y))), 75610#(and (<= main_a_x 44) (not (= main_x main_y))), 75613#(and (<= main_a_x 47) (not (= main_x main_y))), 75612#(and (<= main_a_x 46) (not (= main_x main_y))), 75615#(and (not (= main_x main_y)) (<= main_a_x 49)), 75614#(and (<= main_a_x 48) (not (= main_x main_y))), 75617#(and (<= main_a_x 51) (not (= main_x main_y))), 75616#(and (not (= main_x main_y)) (<= main_a_x 50)), 75619#(and (<= main_a_x 53) (not (= main_x main_y))), 75618#(and (not (= main_x main_y)) (<= main_a_x 52)), 75621#(and (not (= main_x main_y)) (<= main_a_x 55)), 75620#(and (<= main_a_x 54) (not (= main_x main_y))), 75623#(and (not (= main_x main_y)) (<= main_a_x 57)), 75622#(and (not (= main_x main_y)) (<= main_a_x 56)), 75625#(and (not (= main_x main_y)) (<= main_a_x 59)), 75624#(and (not (= main_x main_y)) (<= main_a_x 58)), 75627#(and (not (= main_x main_y)) (<= main_a_x 61)), 75626#(and (<= main_a_x 60) (not (= main_x main_y))), 75629#(and (<= main_a_x 63) (not (= main_x main_y))), 75628#(and (not (= main_x main_y)) (<= main_a_x 62)), 75631#(and (<= main_a_x 65) (not (= main_x main_y))), 75630#(and (<= main_a_x 64) (not (= main_x main_y))), 75633#(and (<= main_a_x 67) (not (= main_x main_y))), 75632#(and (<= main_a_x 66) (not (= main_x main_y))), 75635#(and (<= main_a_x 69) (not (= main_x main_y))), 75634#(and (not (= main_x main_y)) (<= main_a_x 68)), 75637#(and (<= main_a_x 71) (not (= main_x main_y))), 75636#(and (<= main_a_x 70) (not (= main_x main_y))), 75639#(and (not (= 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75674#(and (not (= main_x main_y)) (<= main_a_x 108)), 75677#(and (not (= main_x main_y)) (<= main_a_x 111)), 75676#(and (<= main_a_x 110) (not (= main_x main_y))), 75679#(and (<= main_a_x 113) (not (= main_x main_y))), 75678#(and (<= main_a_x 112) (not (= main_x main_y))), 75681#(and (not (= main_x main_y)) (<= main_a_x 115)), 75680#(and (not (= main_x main_y)) (<= main_a_x 114)), 75683#(and (<= main_a_x 117) (not (= main_x main_y))), 75682#(and (not (= main_x main_y)) (<= main_a_x 116)), 75685#(and (not (= main_x main_y)) (<= main_a_x 119)), 75684#(and (not (= main_x main_y)) (<= main_a_x 118)), 75687#(and (not (= main_x main_y)) (<= main_a_x 121)), 75686#(and (not (= main_x main_y)) (<= main_a_x 120)), 75689#(and (<= main_a_x 123) (not (= main_x main_y))), 75688#(and (not (= main_x main_y)) (<= main_a_x 122)), 75691#(and (not (= main_x main_y)) (<= main_a_x 125)), 75690#(and (not (= main_x main_y)) (<= main_a_x 124)), 75693#(and (not (= main_x main_y)) (<= main_a_x 127)), 75692#(and 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main_a_x 144) (not (= main_x main_y))), 75713#(and (not (= main_x main_y)) (<= main_a_x 147)), 75712#(and (<= main_a_x 146) (not (= main_x main_y))), 75715#(and (not (= main_x main_y)) (<= main_a_x 149)), 75714#(and (<= main_a_x 148) (not (= main_x main_y))), 75717#(and (<= main_a_x 151) (not (= main_x main_y))), 75716#(and (not (= main_x main_y)) (<= main_a_x 150)), 75719#(and (not (= main_x main_y)) (<= main_a_x 153)), 75718#(and (not (= main_x main_y)) (<= main_a_x 152)), 75721#(and (not (= main_x main_y)) (<= main_a_x 155)), 75720#(and (<= main_a_x 154) (not (= main_x main_y))), 75723#(and (<= main_a_x 157) (not (= main_x main_y))), 75722#(and (<= main_a_x 156) (not (= main_x main_y))), 75725#(and (<= main_a_x 159) (not (= main_x main_y))), 75724#(and (<= main_a_x 158) (not (= main_x main_y))), 75727#(and (not (= main_x main_y)) (<= main_a_x 161)), 75726#(and (<= main_a_x 160) (not (= main_x main_y))), 75729#(and (not (= main_x main_y)) (<= main_a_x 163)), 75728#(and (<= main_a_x 162) (not (= main_x main_y))), 75731#(and (<= main_a_x 165) (not (= main_x main_y))), 75730#(and (not (= main_x main_y)) (<= main_a_x 164)), 75733#(and (not (= main_x main_y)) (<= main_a_x 167)), 75732#(and (<= main_a_x 166) (not (= main_x main_y))), 75735#(<= main_a_x 169), 75734#(and (<= main_a_x 168) (not (= main_x main_y)))] [2018-07-23 13:55:32,140 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 13:55:32,140 INFO L450 AbstractCegarLoop]: Interpolant automaton has 172 states [2018-07-23 13:55:32,141 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 172 interpolants. [2018-07-23 13:55:32,142 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14706, Invalid=14706, Unknown=0, NotChecked=0, Total=29412 [2018-07-23 13:55:32,142 INFO L87 Difference]: Start difference. First operand 173 states and 173 transitions. Second operand 172 states. [2018-07-23 13:55:32,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:32,729 INFO L93 Difference]: Finished difference Result 176 states and 176 transitions. [2018-07-23 13:55:32,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 172 states. [2018-07-23 13:55:32,729 INFO L78 Accepts]: Start accepts. Automaton has 172 states. Word has length 172 [2018-07-23 13:55:32,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:32,730 INFO L225 Difference]: With dead ends: 176 [2018-07-23 13:55:32,730 INFO L226 Difference]: Without dead ends: 174 [2018-07-23 13:55:32,731 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 170 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=14706, Invalid=14706, Unknown=0, NotChecked=0, Total=29412 [2018-07-23 13:55:32,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2018-07-23 13:55:32,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2018-07-23 13:55:32,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2018-07-23 13:55:32,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 174 transitions. [2018-07-23 13:55:32,735 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 174 transitions. Word has length 172 [2018-07-23 13:55:32,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:32,735 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 174 transitions. [2018-07-23 13:55:32,735 INFO L472 AbstractCegarLoop]: Interpolant automaton has 172 states. [2018-07-23 13:55:32,735 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 174 transitions. [2018-07-23 13:55:32,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2018-07-23 13:55:32,736 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:32,736 INFO L357 BasicCegarLoop]: trace histogram [170, 1, 1, 1] [2018-07-23 13:55:32,736 INFO L414 AbstractCegarLoop]: === Iteration 171 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:32,736 INFO L82 PathProgramCache]: Analyzing trace with hash 21635212, now seen corresponding path program 170 times [2018-07-23 13:55:32,736 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:33,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:36,143 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 13:55:36,144 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:36,144 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [172] total 172 [2018-07-23 13:55:36,144 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:36,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:36,145 INFO L185 omatonBuilderFactory]: Interpolants [76545#(and (not (= main_x main_y)) (<= main_a_x 107)), 76544#(and (not (= main_x main_y)) (<= main_a_x 106)), 76547#(and (not (= main_x main_y)) (<= main_a_x 109)), 76546#(and (not (= main_x main_y)) (<= main_a_x 108)), 76549#(and (not (= main_x main_y)) (<= main_a_x 111)), 76548#(and (<= main_a_x 110) (not (= main_x main_y))), 76551#(and (<= main_a_x 113) (not (= main_x main_y))), 76550#(and (<= main_a_x 112) (not (= main_x main_y))), 76553#(and (not (= main_x main_y)) (<= main_a_x 115)), 76552#(and (not (= main_x main_y)) (<= main_a_x 114)), 76555#(and (<= main_a_x 117) (not (= main_x main_y))), 76554#(and (not (= main_x main_y)) (<= main_a_x 116)), 76557#(and (not (= main_x main_y)) (<= main_a_x 119)), 76556#(and (not (= main_x main_y)) (<= main_a_x 118)), 76559#(and (not (= main_x main_y)) (<= main_a_x 121)), 76558#(and (not (= main_x main_y)) (<= main_a_x 120)), 76561#(and (<= main_a_x 123) (not (= main_x 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76578#(and (<= main_a_x 140) (not (= main_x main_y))), 76581#(and (<= main_a_x 143) (not (= main_x main_y))), 76580#(and (not (= main_x main_y)) (<= main_a_x 142)), 76583#(and (not (= main_x main_y)) (<= main_a_x 145)), 76582#(and (<= main_a_x 144) (not (= main_x main_y))), 76585#(and (not (= main_x main_y)) (<= main_a_x 147)), 76584#(and (<= main_a_x 146) (not (= main_x main_y))), 76587#(and (not (= main_x main_y)) (<= main_a_x 149)), 76586#(and (<= main_a_x 148) (not (= main_x main_y))), 76589#(and (<= main_a_x 151) (not (= main_x main_y))), 76588#(and (not (= main_x main_y)) (<= main_a_x 150)), 76591#(and (not (= main_x main_y)) (<= main_a_x 153)), 76590#(and (not (= main_x main_y)) (<= main_a_x 152)), 76593#(and (not (= main_x main_y)) (<= main_a_x 155)), 76592#(and (<= main_a_x 154) (not (= main_x main_y))), 76595#(and (<= main_a_x 157) (not (= main_x main_y))), 76594#(and (<= main_a_x 156) (not (= main_x main_y))), 76597#(and (<= main_a_x 159) (not (= main_x main_y))), 76596#(and 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(not (= main_x main_y)) (<= main_a_x 24)), 76465#(and (not (= main_x main_y)) (<= main_a_x 27)), 76464#(and (not (= main_x main_y)) (<= main_a_x 26)), 76467#(and (not (= main_x main_y)) (<= main_a_x 29)), 76466#(and (not (= main_x main_y)) (<= main_a_x 28)), 76469#(and (<= main_a_x 31) (not (= main_x main_y))), 76468#(and (<= main_a_x 30) (not (= main_x main_y))), 76471#(and (not (= main_x main_y)) (<= main_a_x 33)), 76470#(and (not (= main_x main_y)) (<= main_a_x 32)), 76473#(and (<= main_a_x 35) (not (= main_x main_y))), 76472#(and (not (= main_x main_y)) (<= main_a_x 34)), 76475#(and (<= main_a_x 37) (not (= main_x main_y))), 76474#(and (not (= main_x main_y)) (<= main_a_x 36)), 76477#(and (<= main_a_x 39) (not (= main_x main_y))), 76476#(and (not (= main_x main_y)) (<= main_a_x 38)), 76479#(and (not (= main_x main_y)) (<= main_a_x 41)), 76478#(and (<= main_a_x 40) (not (= main_x main_y))), 76481#(and (<= main_a_x 43) (not (= main_x main_y))), 76480#(and (not (= main_x main_y)) (<= main_a_x 42)), 76483#(and (<= main_a_x 45) (not (= main_x main_y))), 76482#(and (<= main_a_x 44) (not (= main_x main_y))), 76485#(and (<= main_a_x 47) (not (= main_x main_y))), 76484#(and (<= main_a_x 46) (not (= main_x main_y))), 76487#(and (not (= main_x main_y)) (<= main_a_x 49)), 76486#(and (<= main_a_x 48) (not (= main_x main_y))), 76489#(and (<= main_a_x 51) (not (= main_x main_y))), 76488#(and (not (= main_x main_y)) (<= main_a_x 50)), 76491#(and (<= main_a_x 53) (not (= main_x main_y))), 76490#(and (not (= main_x main_y)) (<= main_a_x 52)), 76493#(and (not (= main_x main_y)) (<= main_a_x 55)), 76492#(and (<= main_a_x 54) (not (= main_x main_y))), 76495#(and (not (= main_x main_y)) (<= main_a_x 57)), 76494#(and (not (= main_x main_y)) (<= main_a_x 56)), 76497#(and (not (= main_x main_y)) (<= main_a_x 59)), 76496#(and (not (= main_x main_y)) (<= main_a_x 58)), 76499#(and (not (= main_x main_y)) (<= main_a_x 61)), 76498#(and (<= main_a_x 60) (not (= main_x main_y))), 76501#(and (<= main_a_x 63) (not (= main_x main_y))), 76500#(and (not (= main_x main_y)) (<= main_a_x 62)), 76503#(and (<= main_a_x 65) (not (= main_x main_y))), 76502#(and (<= main_a_x 64) (not (= main_x main_y))), 76505#(and (<= main_a_x 67) (not (= main_x main_y))), 76504#(and (<= main_a_x 66) (not (= main_x main_y))), 76507#(and (<= main_a_x 69) (not (= main_x main_y))), 76506#(and (not (= main_x main_y)) (<= main_a_x 68)), 76509#(and (<= main_a_x 71) (not (= main_x main_y))), 76508#(and (<= main_a_x 70) (not (= main_x main_y))), 76511#(and (not (= main_x main_y)) (<= main_a_x 73)), 76510#(and (not (= main_x main_y)) (<= main_a_x 72)), 76513#(and (<= main_a_x 75) (not (= main_x main_y))), 76512#(and (<= main_a_x 74) (not (= main_x main_y))), 76515#(and (not (= main_x main_y)) (<= main_a_x 77)), 76514#(and (not (= main_x main_y)) (<= main_a_x 76)), 76517#(and (<= main_a_x 79) (not (= main_x main_y))), 76516#(and (<= main_a_x 78) (not (= main_x main_y))), 76519#(and (not (= main_x main_y)) (<= main_a_x 81)), 76518#(and (not (= main_x main_y)) (<= main_a_x 80)), 76521#(and (not (= main_x main_y)) (<= main_a_x 83)), 76520#(and (not (= main_x main_y)) (<= main_a_x 82)), 76523#(and (not (= main_x main_y)) (<= main_a_x 85)), 76522#(and (<= main_a_x 84) (not (= main_x main_y))), 76525#(and (<= main_a_x 87) (not (= main_x main_y))), 76524#(and (not (= main_x main_y)) (<= main_a_x 86)), 76527#(and (<= main_a_x 89) (not (= main_x main_y))), 76526#(and (not (= main_x main_y)) (<= main_a_x 88)), 76529#(and (<= main_a_x 91) (not (= main_x main_y))), 76528#(and (not (= main_x main_y)) (<= main_a_x 90)), 76531#(and (not (= main_x main_y)) (<= main_a_x 93)), 76530#(and (not (= main_x main_y)) (<= main_a_x 92)), 76533#(and (<= main_a_x 95) (not (= main_x main_y))), 76532#(and (<= main_a_x 94) (not (= main_x main_y))), 76535#(and (<= main_a_x 97) (not (= main_x main_y))), 76534#(and (not (= main_x main_y)) (<= main_a_x 96)), 76537#(and (<= main_a_x 99) (not (= main_x main_y))), 76536#(and (not (= main_x main_y)) (<= main_a_x 98)), 76539#(and (not (= main_x main_y)) (<= main_a_x 101)), 76538#(and (<= main_a_x 100) (not (= main_x main_y))), 76541#(and (not (= main_x main_y)) (<= main_a_x 103)), 76540#(and (not (= main_x main_y)) (<= main_a_x 102)), 76543#(and (<= main_a_x 105) (not (= main_x main_y))), 76542#(and (<= main_a_x 104) (not (= main_x main_y)))] [2018-07-23 13:55:36,146 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 13:55:36,146 INFO L450 AbstractCegarLoop]: Interpolant automaton has 173 states [2018-07-23 13:55:36,148 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 173 interpolants. [2018-07-23 13:55:36,149 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14878, Invalid=14878, Unknown=0, NotChecked=0, Total=29756 [2018-07-23 13:55:36,150 INFO L87 Difference]: Start difference. First operand 174 states and 174 transitions. Second operand 173 states. [2018-07-23 13:55:36,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:36,346 INFO L93 Difference]: Finished difference Result 177 states and 177 transitions. [2018-07-23 13:55:36,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 173 states. [2018-07-23 13:55:36,346 INFO L78 Accepts]: Start accepts. Automaton has 173 states. Word has length 173 [2018-07-23 13:55:36,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:36,347 INFO L225 Difference]: With dead ends: 177 [2018-07-23 13:55:36,347 INFO L226 Difference]: Without dead ends: 175 [2018-07-23 13:55:36,348 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 171 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=14878, Invalid=14878, Unknown=0, NotChecked=0, Total=29756 [2018-07-23 13:55:36,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2018-07-23 13:55:36,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2018-07-23 13:55:36,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2018-07-23 13:55:36,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 175 transitions. [2018-07-23 13:55:36,355 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 175 transitions. Word has length 173 [2018-07-23 13:55:36,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:36,355 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 175 transitions. [2018-07-23 13:55:36,355 INFO L472 AbstractCegarLoop]: Interpolant automaton has 173 states. [2018-07-23 13:55:36,355 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 175 transitions. [2018-07-23 13:55:36,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2018-07-23 13:55:36,356 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:36,356 INFO L357 BasicCegarLoop]: trace histogram [171, 1, 1, 1] [2018-07-23 13:55:36,356 INFO L414 AbstractCegarLoop]: === Iteration 172 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:36,356 INFO L82 PathProgramCache]: Analyzing trace with hash 670706951, now seen corresponding path program 171 times [2018-07-23 13:55:36,356 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 13:55:39,701 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 13:55:39,702 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:39,702 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [173] total 173 [2018-07-23 13:55:39,702 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:39,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:39,703 INFO L185 omatonBuilderFactory]: Interpolants [77313#true, 77315#(and (not (= main_x main_y)) (<= main_a_x 0)), 77314#false, 77317#(and (not (= main_x main_y)) (<= main_a_x 2)), 77316#(and (not (= main_x main_y)) (<= main_a_x 1)), 77319#(and (<= main_a_x 4) (not (= main_x main_y))), 77318#(and (not (= main_x main_y)) (<= main_a_x 3)), 77321#(and (not (= main_x main_y)) (<= main_a_x 6)), 77320#(and (<= main_a_x 5) (not (= main_x main_y))), 77323#(and (not (= main_x main_y)) (<= main_a_x 8)), 77322#(and (<= main_a_x 7) (not (= main_x main_y))), 77325#(and (<= main_a_x 10) (not (= main_x main_y))), 77324#(and (not (= main_x main_y)) (<= main_a_x 9)), 77327#(and (not (= main_x main_y)) (<= main_a_x 12)), 77326#(and (not (= main_x main_y)) (<= main_a_x 11)), 77329#(and (not (= main_x main_y)) (<= main_a_x 14)), 77328#(and (<= main_a_x 13) (not (= main_x main_y))), 77331#(and (not (= main_x main_y)) (<= main_a_x 16)), 77330#(and (<= main_a_x 15) (not (= main_x main_y))), 77333#(and (<= main_a_x 18) (not (= main_x main_y))), 77332#(and (not (= main_x main_y)) (<= main_a_x 17)), 77335#(and (not (= main_x main_y)) (<= main_a_x 20)), 77334#(and (<= main_a_x 19) (not (= main_x main_y))), 77337#(and (not (= main_x main_y)) (<= main_a_x 22)), 77336#(and (not (= main_x main_y)) (<= main_a_x 21)), 77339#(and (not (= main_x main_y)) (<= main_a_x 24)), 77338#(and (<= main_a_x 23) (not (= main_x main_y))), 77341#(and (not (= main_x main_y)) (<= main_a_x 26)), 77340#(and (<= main_a_x 25) (not (= main_x main_y))), 77343#(and (not (= main_x main_y)) (<= main_a_x 28)), 77342#(and (not (= main_x main_y)) (<= main_a_x 27)), 77345#(and (<= main_a_x 30) (not (= main_x main_y))), 77344#(and (not (= main_x main_y)) (<= main_a_x 29)), 77347#(and (not (= main_x main_y)) (<= main_a_x 32)), 77346#(and (<= main_a_x 31) (not (= main_x main_y))), 77349#(and (not (= main_x main_y)) (<= main_a_x 34)), 77348#(and (not (= main_x main_y)) (<= main_a_x 33)), 77351#(and (not (= main_x main_y)) (<= main_a_x 36)), 77350#(and (<= main_a_x 35) (not (= main_x main_y))), 77353#(and (not (= main_x main_y)) (<= main_a_x 38)), 77352#(and (<= main_a_x 37) (not (= main_x main_y))), 77355#(and (<= main_a_x 40) (not (= main_x main_y))), 77354#(and (<= main_a_x 39) (not (= main_x main_y))), 77357#(and (not (= main_x main_y)) (<= main_a_x 42)), 77356#(and (not (= main_x main_y)) (<= main_a_x 41)), 77359#(and (<= main_a_x 44) (not (= main_x main_y))), 77358#(and (<= main_a_x 43) (not (= main_x main_y))), 77361#(and (<= main_a_x 46) (not (= main_x main_y))), 77360#(and (<= main_a_x 45) (not (= main_x main_y))), 77363#(and (<= main_a_x 48) (not (= main_x main_y))), 77362#(and (<= main_a_x 47) (not (= main_x main_y))), 77365#(and (not (= main_x main_y)) (<= main_a_x 50)), 77364#(and (not (= main_x main_y)) (<= main_a_x 49)), 77367#(and (not (= main_x main_y)) (<= main_a_x 52)), 77366#(and (<= main_a_x 51) (not (= main_x main_y))), 77369#(and (<= main_a_x 54) (not (= main_x main_y))), 77368#(and (<= main_a_x 53) (not (= main_x main_y))), 77371#(and (not (= main_x main_y)) (<= main_a_x 56)), 77370#(and (not (= main_x main_y)) (<= main_a_x 55)), 77373#(and (not (= main_x main_y)) (<= main_a_x 58)), 77372#(and (not (= main_x main_y)) (<= main_a_x 57)), 77375#(and (<= main_a_x 60) (not (= main_x main_y))), 77374#(and (not (= main_x main_y)) (<= main_a_x 59)), 77377#(and (not (= main_x main_y)) (<= main_a_x 62)), 77376#(and (not (= main_x main_y)) (<= main_a_x 61)), 77379#(and (<= main_a_x 64) (not (= main_x main_y))), 77378#(and (<= main_a_x 63) (not (= main_x main_y))), 77381#(and (<= main_a_x 66) (not (= main_x main_y))), 77380#(and (<= main_a_x 65) (not (= main_x main_y))), 77383#(and (not (= main_x main_y)) (<= main_a_x 68)), 77382#(and (<= main_a_x 67) (not (= main_x main_y))), 77385#(and (<= main_a_x 70) (not (= main_x main_y))), 77384#(and (<= main_a_x 69) (not (= main_x main_y))), 77387#(and (not (= main_x main_y)) (<= main_a_x 72)), 77386#(and (<= main_a_x 71) (not (= main_x main_y))), 77389#(and (<= main_a_x 74) (not (= main_x main_y))), 77388#(and (not (= main_x main_y)) (<= main_a_x 73)), 77391#(and (not (= main_x main_y)) (<= main_a_x 76)), 77390#(and (<= main_a_x 75) (not (= main_x main_y))), 77393#(and (<= main_a_x 78) (not (= main_x main_y))), 77392#(and (not (= main_x main_y)) (<= main_a_x 77)), 77395#(and (not (= main_x main_y)) (<= main_a_x 80)), 77394#(and (<= main_a_x 79) (not (= main_x main_y))), 77397#(and (not (= main_x main_y)) (<= main_a_x 82)), 77396#(and (not (= main_x main_y)) (<= main_a_x 81)), 77399#(and (<= main_a_x 84) (not (= main_x main_y))), 77398#(and (not (= main_x main_y)) (<= main_a_x 83)), 77401#(and (not (= main_x main_y)) (<= main_a_x 86)), 77400#(and (not (= main_x main_y)) (<= main_a_x 85)), 77403#(and (not (= main_x main_y)) (<= main_a_x 88)), 77402#(and (<= main_a_x 87) (not (= main_x main_y))), 77405#(and (not (= main_x main_y)) (<= main_a_x 90)), 77404#(and (<= main_a_x 89) (not (= main_x main_y))), 77407#(and (not (= main_x main_y)) (<= main_a_x 92)), 77406#(and (<= main_a_x 91) (not (= main_x main_y))), 77409#(and (<= main_a_x 94) (not (= main_x main_y))), 77408#(and (not (= main_x main_y)) (<= main_a_x 93)), 77411#(and (not (= main_x main_y)) (<= main_a_x 96)), 77410#(and (<= main_a_x 95) (not (= main_x main_y))), 77413#(and (not (= main_x main_y)) (<= main_a_x 98)), 77412#(and (<= main_a_x 97) (not (= main_x main_y))), 77415#(and (<= main_a_x 100) (not (= main_x main_y))), 77414#(and (<= main_a_x 99) (not (= main_x main_y))), 77417#(and (not (= main_x main_y)) (<= main_a_x 102)), 77416#(and (not (= main_x main_y)) (<= main_a_x 101)), 77419#(and (<= main_a_x 104) (not (= main_x main_y))), 77418#(and (not (= main_x main_y)) (<= main_a_x 103)), 77421#(and (not (= main_x main_y)) (<= main_a_x 106)), 77420#(and (<= main_a_x 105) (not (= main_x main_y))), 77423#(and (not (= main_x main_y)) (<= main_a_x 108)), 77422#(and (not (= main_x main_y)) (<= main_a_x 107)), 77425#(and (<= main_a_x 110) (not (= main_x main_y))), 77424#(and (not (= main_x main_y)) (<= main_a_x 109)), 77427#(and (<= main_a_x 112) (not (= main_x main_y))), 77426#(and (not (= main_x main_y)) (<= main_a_x 111)), 77429#(and (not (= main_x main_y)) (<= main_a_x 114)), 77428#(and (<= main_a_x 113) (not (= main_x main_y))), 77431#(and (not (= main_x main_y)) (<= main_a_x 116)), 77430#(and (not (= main_x main_y)) (<= main_a_x 115)), 77433#(and (not (= main_x main_y)) (<= main_a_x 118)), 77432#(and (<= main_a_x 117) (not (= main_x main_y))), 77435#(and (not (= main_x main_y)) (<= main_a_x 120)), 77434#(and (not (= main_x main_y)) (<= main_a_x 119)), 77437#(and (not (= main_x main_y)) (<= main_a_x 122)), 77436#(and (not (= main_x main_y)) (<= main_a_x 121)), 77439#(and (not (= main_x main_y)) (<= main_a_x 124)), 77438#(and (<= main_a_x 123) (not (= main_x main_y))), 77441#(and (not (= main_x main_y)) (<= main_a_x 126)), 77440#(and (not (= main_x main_y)) (<= main_a_x 125)), 77443#(and (<= main_a_x 128) (not (= main_x main_y))), 77442#(and (not (= main_x main_y)) (<= main_a_x 127)), 77445#(and (not (= main_x main_y)) (<= main_a_x 130)), 77444#(and (<= main_a_x 129) (not (= main_x main_y))), 77447#(and (not (= main_x main_y)) (<= main_a_x 132)), 77446#(and (not (= main_x main_y)) (<= main_a_x 131)), 77449#(and (not (= main_x main_y)) (<= main_a_x 134)), 77448#(and (not (= main_x main_y)) (<= main_a_x 133)), 77451#(and (<= main_a_x 136) (not (= main_x main_y))), 77450#(and (<= main_a_x 135) (not (= main_x main_y))), 77453#(and (not (= main_x main_y)) (<= main_a_x 138)), 77452#(and (not (= main_x main_y)) (<= main_a_x 137)), 77455#(and (<= main_a_x 140) (not (= main_x main_y))), 77454#(and (not (= main_x main_y)) (<= main_a_x 139)), 77457#(and (not (= main_x main_y)) (<= main_a_x 142)), 77456#(and (<= main_a_x 141) (not (= main_x main_y))), 77459#(and (<= main_a_x 144) (not (= main_x main_y))), 77458#(and (<= main_a_x 143) (not (= main_x main_y))), 77461#(and (<= main_a_x 146) (not (= main_x main_y))), 77460#(and (not (= main_x main_y)) (<= main_a_x 145)), 77463#(and (<= main_a_x 148) (not (= main_x main_y))), 77462#(and (not (= main_x main_y)) (<= main_a_x 147)), 77465#(and (not (= main_x main_y)) (<= main_a_x 150)), 77464#(and (not (= main_x main_y)) (<= main_a_x 149)), 77467#(and (not (= main_x main_y)) (<= main_a_x 152)), 77466#(and (<= main_a_x 151) (not (= main_x main_y))), 77469#(and (<= main_a_x 154) (not (= main_x main_y))), 77468#(and (not (= main_x main_y)) (<= main_a_x 153)), 77471#(and (<= main_a_x 156) (not (= main_x main_y))), 77470#(and (not (= main_x main_y)) (<= main_a_x 155)), 77473#(and (<= main_a_x 158) (not (= main_x main_y))), 77472#(and (<= main_a_x 157) (not (= main_x main_y))), 77475#(and (<= main_a_x 160) (not (= main_x main_y))), 77474#(and (<= main_a_x 159) (not (= main_x main_y))), 77477#(and (<= main_a_x 162) (not (= main_x main_y))), 77476#(and (not (= main_x main_y)) (<= main_a_x 161)), 77479#(and (not (= main_x main_y)) (<= main_a_x 164)), 77478#(and (not (= main_x main_y)) (<= main_a_x 163)), 77481#(and (<= main_a_x 166) (not (= main_x main_y))), 77480#(and (<= main_a_x 165) (not (= main_x main_y))), 77483#(and (<= main_a_x 168) (not (= main_x main_y))), 77482#(and (not (= main_x main_y)) (<= main_a_x 167)), 77485#(and (not (= main_x main_y)) (<= main_a_x 170)), 77484#(and (<= main_a_x 169) (not (= main_x main_y))), 77486#(<= main_a_x 171)] [2018-07-23 13:55:39,703 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 13:55:39,704 INFO L450 AbstractCegarLoop]: Interpolant automaton has 174 states [2018-07-23 13:55:39,706 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 174 interpolants. [2018-07-23 13:55:39,707 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15051, Invalid=15051, Unknown=0, NotChecked=0, Total=30102 [2018-07-23 13:55:39,707 INFO L87 Difference]: Start difference. First operand 175 states and 175 transitions. Second operand 174 states. [2018-07-23 13:55:40,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:40,333 INFO L93 Difference]: Finished difference Result 178 states and 178 transitions. [2018-07-23 13:55:40,333 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 174 states. [2018-07-23 13:55:40,333 INFO L78 Accepts]: Start accepts. Automaton has 174 states. Word has length 174 [2018-07-23 13:55:40,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:40,334 INFO L225 Difference]: With dead ends: 178 [2018-07-23 13:55:40,334 INFO L226 Difference]: Without dead ends: 176 [2018-07-23 13:55:40,337 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 172 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=15051, Invalid=15051, Unknown=0, NotChecked=0, Total=30102 [2018-07-23 13:55:40,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2018-07-23 13:55:40,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2018-07-23 13:55:40,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2018-07-23 13:55:40,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 176 transitions. [2018-07-23 13:55:40,342 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 176 transitions. Word has length 174 [2018-07-23 13:55:40,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:40,342 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 176 transitions. [2018-07-23 13:55:40,342 INFO L472 AbstractCegarLoop]: Interpolant automaton has 174 states. [2018-07-23 13:55:40,342 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 176 transitions. [2018-07-23 13:55:40,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2018-07-23 13:55:40,343 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:40,343 INFO L357 BasicCegarLoop]: trace histogram [172, 1, 1, 1] [2018-07-23 13:55:40,343 INFO L414 AbstractCegarLoop]: === Iteration 173 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:40,343 INFO L82 PathProgramCache]: Analyzing trace with hash -682905620, now seen corresponding path program 172 times [2018-07-23 13:55:40,343 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:41,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:43,452 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 13:55:43,453 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:43,453 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [174] total 174 [2018-07-23 13:55:43,453 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:43,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:43,453 INFO L185 omatonBuilderFactory]: Interpolants [78337#(and (<= main_a_x 140) (not (= main_x main_y))), 78336#(and (not (= main_x main_y)) (<= main_a_x 139)), 78339#(and (not (= main_x main_y)) (<= main_a_x 142)), 78338#(and (<= main_a_x 141) (not (= main_x main_y))), 78341#(and (<= main_a_x 144) (not (= main_x main_y))), 78340#(and (<= main_a_x 143) (not (= main_x main_y))), 78343#(and (<= main_a_x 146) (not (= main_x main_y))), 78342#(and (not (= main_x main_y)) (<= main_a_x 145)), 78345#(and (<= main_a_x 148) (not (= main_x main_y))), 78344#(and (not (= main_x main_y)) (<= main_a_x 147)), 78347#(and (not (= main_x main_y)) (<= main_a_x 150)), 78346#(and (not (= main_x main_y)) (<= main_a_x 149)), 78349#(and (not (= main_x main_y)) (<= main_a_x 152)), 78348#(and (<= main_a_x 151) (not (= main_x main_y))), 78351#(and (<= main_a_x 154) (not (= main_x main_y))), 78350#(and (not (= main_x main_y)) (<= main_a_x 153)), 78353#(and (<= main_a_x 156) (not (= main_x main_y))), 78352#(and (not (= main_x main_y)) (<= main_a_x 155)), 78355#(and (<= main_a_x 158) (not (= main_x main_y))), 78354#(and (<= main_a_x 157) (not (= main_x main_y))), 78357#(and (<= main_a_x 160) (not (= main_x main_y))), 78356#(and (<= main_a_x 159) (not (= main_x main_y))), 78359#(and (<= main_a_x 162) (not (= main_x main_y))), 78358#(and (not (= main_x main_y)) (<= main_a_x 161)), 78361#(and (not (= main_x main_y)) (<= main_a_x 164)), 78360#(and (not (= main_x main_y)) (<= main_a_x 163)), 78363#(and (<= main_a_x 166) (not (= main_x main_y))), 78362#(and (<= main_a_x 165) (not (= main_x main_y))), 78365#(and (<= main_a_x 168) (not (= main_x main_y))), 78364#(and (not (= main_x main_y)) (<= main_a_x 167)), 78367#(and (not (= main_x main_y)) (<= main_a_x 170)), 78366#(and (<= main_a_x 169) (not (= main_x main_y))), 78369#(<= main_a_x 172), 78368#(and (<= main_a_x 171) (not (= main_x main_y))), 78195#true, 78197#(and (not (= main_x main_y)) (<= main_a_x 0)), 78196#false, 78199#(and (not (= main_x main_y)) (<= main_a_x 2)), 78198#(and (not (= main_x main_y)) (<= main_a_x 1)), 78201#(and (<= main_a_x 4) (not (= main_x main_y))), 78200#(and (not (= main_x main_y)) (<= main_a_x 3)), 78203#(and (not (= main_x main_y)) (<= main_a_x 6)), 78202#(and (<= main_a_x 5) (not (= main_x main_y))), 78205#(and (not (= main_x main_y)) (<= main_a_x 8)), 78204#(and (<= main_a_x 7) (not (= main_x main_y))), 78207#(and (<= main_a_x 10) (not (= main_x main_y))), 78206#(and (not (= main_x main_y)) (<= main_a_x 9)), 78209#(and (not (= main_x main_y)) (<= main_a_x 12)), 78208#(and (not (= main_x main_y)) (<= main_a_x 11)), 78211#(and (not (= main_x main_y)) (<= main_a_x 14)), 78210#(and (<= main_a_x 13) (not (= main_x main_y))), 78213#(and (not (= main_x main_y)) (<= main_a_x 16)), 78212#(and (<= main_a_x 15) (not (= main_x main_y))), 78215#(and (<= main_a_x 18) (not (= main_x main_y))), 78214#(and (not (= main_x main_y)) (<= main_a_x 17)), 78217#(and (not (= main_x main_y)) (<= main_a_x 20)), 78216#(and (<= main_a_x 19) (not (= main_x main_y))), 78219#(and (not (= main_x main_y)) (<= main_a_x 22)), 78218#(and (not (= main_x main_y)) (<= main_a_x 21)), 78221#(and (not (= main_x main_y)) (<= main_a_x 24)), 78220#(and (<= main_a_x 23) (not (= main_x main_y))), 78223#(and (not (= main_x main_y)) (<= main_a_x 26)), 78222#(and (<= main_a_x 25) (not (= main_x main_y))), 78225#(and (not (= main_x main_y)) (<= main_a_x 28)), 78224#(and (not (= main_x main_y)) (<= main_a_x 27)), 78227#(and (<= main_a_x 30) (not (= main_x main_y))), 78226#(and (not (= main_x main_y)) (<= main_a_x 29)), 78229#(and (not (= main_x main_y)) (<= main_a_x 32)), 78228#(and (<= main_a_x 31) (not (= main_x main_y))), 78231#(and (not (= main_x main_y)) (<= main_a_x 34)), 78230#(and (not (= main_x main_y)) (<= main_a_x 33)), 78233#(and (not (= main_x main_y)) (<= main_a_x 36)), 78232#(and (<= main_a_x 35) (not (= main_x main_y))), 78235#(and (not (= main_x main_y)) (<= main_a_x 38)), 78234#(and (<= main_a_x 37) (not (= main_x main_y))), 78237#(and (<= main_a_x 40) (not (= main_x main_y))), 78236#(and (<= main_a_x 39) (not (= main_x main_y))), 78239#(and (not (= main_x main_y)) (<= main_a_x 42)), 78238#(and (not (= main_x main_y)) (<= main_a_x 41)), 78241#(and (<= main_a_x 44) (not (= main_x main_y))), 78240#(and (<= main_a_x 43) (not (= main_x main_y))), 78243#(and (<= main_a_x 46) (not (= main_x main_y))), 78242#(and (<= main_a_x 45) (not (= main_x main_y))), 78245#(and (<= main_a_x 48) (not (= main_x main_y))), 78244#(and (<= main_a_x 47) (not (= main_x main_y))), 78247#(and (not (= main_x main_y)) (<= main_a_x 50)), 78246#(and (not (= main_x main_y)) (<= main_a_x 49)), 78249#(and (not (= main_x main_y)) (<= main_a_x 52)), 78248#(and (<= main_a_x 51) (not (= main_x main_y))), 78251#(and (<= main_a_x 54) (not (= main_x main_y))), 78250#(and (<= main_a_x 53) (not (= main_x main_y))), 78253#(and (not (= main_x main_y)) (<= main_a_x 56)), 78252#(and (not (= main_x main_y)) (<= main_a_x 55)), 78255#(and (not (= main_x main_y)) (<= main_a_x 58)), 78254#(and (not (= main_x main_y)) (<= main_a_x 57)), 78257#(and (<= main_a_x 60) (not (= main_x main_y))), 78256#(and (not (= main_x main_y)) (<= main_a_x 59)), 78259#(and (not (= main_x main_y)) (<= main_a_x 62)), 78258#(and (not (= main_x main_y)) (<= main_a_x 61)), 78261#(and (<= main_a_x 64) (not (= main_x main_y))), 78260#(and (<= main_a_x 63) (not (= main_x main_y))), 78263#(and (<= main_a_x 66) (not (= main_x main_y))), 78262#(and (<= main_a_x 65) (not (= main_x main_y))), 78265#(and (not (= main_x main_y)) (<= main_a_x 68)), 78264#(and (<= main_a_x 67) (not (= main_x main_y))), 78267#(and (<= main_a_x 70) (not (= main_x main_y))), 78266#(and (<= main_a_x 69) (not (= main_x main_y))), 78269#(and (not (= main_x main_y)) (<= main_a_x 72)), 78268#(and (<= main_a_x 71) (not (= main_x main_y))), 78271#(and (<= main_a_x 74) (not (= main_x main_y))), 78270#(and (not (= main_x main_y)) (<= main_a_x 73)), 78273#(and (not (= main_x main_y)) (<= main_a_x 76)), 78272#(and (<= main_a_x 75) (not (= main_x main_y))), 78275#(and (<= main_a_x 78) (not (= main_x main_y))), 78274#(and (not (= main_x main_y)) (<= main_a_x 77)), 78277#(and (not (= main_x main_y)) (<= main_a_x 80)), 78276#(and (<= main_a_x 79) (not (= main_x main_y))), 78279#(and (not (= main_x main_y)) (<= main_a_x 82)), 78278#(and (not (= main_x main_y)) (<= main_a_x 81)), 78281#(and (<= main_a_x 84) (not (= main_x main_y))), 78280#(and (not (= main_x main_y)) (<= main_a_x 83)), 78283#(and (not (= main_x main_y)) (<= main_a_x 86)), 78282#(and (not (= main_x main_y)) (<= main_a_x 85)), 78285#(and (not (= main_x main_y)) (<= main_a_x 88)), 78284#(and (<= main_a_x 87) (not (= main_x main_y))), 78287#(and (not (= main_x main_y)) (<= main_a_x 90)), 78286#(and (<= main_a_x 89) (not (= main_x main_y))), 78289#(and (not (= main_x main_y)) (<= main_a_x 92)), 78288#(and (<= main_a_x 91) (not (= main_x main_y))), 78291#(and (<= main_a_x 94) (not (= main_x main_y))), 78290#(and (not (= main_x main_y)) (<= main_a_x 93)), 78293#(and (not (= main_x main_y)) (<= main_a_x 96)), 78292#(and (<= main_a_x 95) (not (= main_x main_y))), 78295#(and (not (= main_x main_y)) (<= main_a_x 98)), 78294#(and (<= main_a_x 97) (not (= main_x main_y))), 78297#(and (<= main_a_x 100) (not (= main_x main_y))), 78296#(and (<= main_a_x 99) (not (= main_x main_y))), 78299#(and (not (= main_x main_y)) (<= main_a_x 102)), 78298#(and (not (= main_x main_y)) (<= main_a_x 101)), 78301#(and (<= main_a_x 104) (not (= main_x main_y))), 78300#(and (not (= main_x main_y)) (<= main_a_x 103)), 78303#(and (not (= main_x main_y)) (<= main_a_x 106)), 78302#(and (<= main_a_x 105) (not (= main_x main_y))), 78305#(and (not (= main_x main_y)) (<= main_a_x 108)), 78304#(and (not (= main_x main_y)) (<= main_a_x 107)), 78307#(and (<= main_a_x 110) (not (= main_x main_y))), 78306#(and (not (= main_x main_y)) (<= main_a_x 109)), 78309#(and (<= main_a_x 112) (not (= main_x main_y))), 78308#(and (not (= main_x main_y)) (<= main_a_x 111)), 78311#(and (not (= main_x main_y)) (<= main_a_x 114)), 78310#(and (<= main_a_x 113) (not (= main_x main_y))), 78313#(and (not (= main_x main_y)) (<= main_a_x 116)), 78312#(and (not (= main_x main_y)) (<= main_a_x 115)), 78315#(and (not (= main_x main_y)) (<= main_a_x 118)), 78314#(and (<= main_a_x 117) (not (= main_x main_y))), 78317#(and (not (= main_x main_y)) (<= main_a_x 120)), 78316#(and (not (= main_x main_y)) (<= main_a_x 119)), 78319#(and (not (= main_x main_y)) (<= main_a_x 122)), 78318#(and (not (= main_x main_y)) (<= main_a_x 121)), 78321#(and (not (= main_x main_y)) (<= main_a_x 124)), 78320#(and (<= main_a_x 123) (not (= main_x main_y))), 78323#(and (not (= main_x main_y)) (<= main_a_x 126)), 78322#(and (not (= main_x main_y)) (<= main_a_x 125)), 78325#(and (<= main_a_x 128) (not (= main_x main_y))), 78324#(and (not (= main_x main_y)) (<= main_a_x 127)), 78327#(and (not (= main_x main_y)) (<= main_a_x 130)), 78326#(and (<= main_a_x 129) (not (= main_x main_y))), 78329#(and (not (= main_x main_y)) (<= main_a_x 132)), 78328#(and (not (= main_x main_y)) (<= main_a_x 131)), 78331#(and (not (= main_x main_y)) (<= main_a_x 134)), 78330#(and (not (= main_x main_y)) (<= main_a_x 133)), 78333#(and (<= main_a_x 136) (not (= main_x main_y))), 78332#(and (<= main_a_x 135) (not (= main_x main_y))), 78335#(and (not (= main_x main_y)) (<= main_a_x 138)), 78334#(and (not (= main_x main_y)) (<= main_a_x 137))] [2018-07-23 13:55:43,454 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 13:55:43,454 INFO L450 AbstractCegarLoop]: Interpolant automaton has 175 states [2018-07-23 13:55:43,456 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 175 interpolants. [2018-07-23 13:55:43,457 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15225, Invalid=15225, Unknown=0, NotChecked=0, Total=30450 [2018-07-23 13:55:43,457 INFO L87 Difference]: Start difference. First operand 176 states and 176 transitions. Second operand 175 states. [2018-07-23 13:55:43,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:43,811 INFO L93 Difference]: Finished difference Result 179 states and 179 transitions. [2018-07-23 13:55:43,811 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 175 states. [2018-07-23 13:55:43,811 INFO L78 Accepts]: Start accepts. Automaton has 175 states. Word has length 175 [2018-07-23 13:55:43,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:43,812 INFO L225 Difference]: With dead ends: 179 [2018-07-23 13:55:43,812 INFO L226 Difference]: Without dead ends: 177 [2018-07-23 13:55:43,813 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 173 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=15225, Invalid=15225, Unknown=0, NotChecked=0, Total=30450 [2018-07-23 13:55:43,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2018-07-23 13:55:43,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2018-07-23 13:55:43,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2018-07-23 13:55:43,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 177 transitions. [2018-07-23 13:55:43,818 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 177 transitions. Word has length 175 [2018-07-23 13:55:43,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:43,818 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 177 transitions. [2018-07-23 13:55:43,818 INFO L472 AbstractCegarLoop]: Interpolant automaton has 175 states. [2018-07-23 13:55:43,818 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 177 transitions. [2018-07-23 13:55:43,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2018-07-23 13:55:43,819 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:43,819 INFO L357 BasicCegarLoop]: trace histogram [173, 1, 1, 1] [2018-07-23 13:55:43,819 INFO L414 AbstractCegarLoop]: === Iteration 174 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:43,820 INFO L82 PathProgramCache]: Analyzing trace with hash 304777639, now seen corresponding path program 173 times [2018-07-23 13:55:43,820 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:44,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:47,281 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 13:55:47,281 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:47,281 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [175] total 175 [2018-07-23 13:55:47,282 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:47,282 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 13:55:47,282 INFO L185 omatonBuilderFactory]: Interpolants [79105#(and (not (= main_x main_y)) (<= main_a_x 21)), 79104#(and (not (= main_x main_y)) (<= main_a_x 20)), 79107#(and (<= main_a_x 23) (not (= main_x main_y))), 79106#(and (not (= main_x main_y)) (<= main_a_x 22)), 79109#(and (<= main_a_x 25) (not (= main_x main_y))), 79108#(and (not (= main_x main_y)) (<= main_a_x 24)), 79111#(and (not (= main_x main_y)) (<= main_a_x 27)), 79110#(and (not (= main_x main_y)) (<= main_a_x 26)), 79113#(and (not (= main_x main_y)) (<= main_a_x 29)), 79112#(and (not (= main_x main_y)) (<= main_a_x 28)), 79115#(and (<= main_a_x 31) (not (= main_x main_y))), 79114#(and (<= main_a_x 30) (not (= main_x main_y))), 79117#(and (not (= main_x main_y)) (<= main_a_x 33)), 79116#(and (not (= main_x main_y)) (<= main_a_x 32)), 79119#(and (<= main_a_x 35) (not (= main_x main_y))), 79118#(and (not (= main_x main_y)) (<= main_a_x 34)), 79121#(and (<= main_a_x 37) (not (= main_x main_y))), 79120#(and (not (= main_x main_y)) (<= main_a_x 36)), 79123#(and (<= main_a_x 39) (not (= main_x main_y))), 79122#(and (not (= main_x main_y)) (<= main_a_x 38)), 79125#(and (not (= main_x main_y)) (<= main_a_x 41)), 79124#(and (<= main_a_x 40) (not (= main_x main_y))), 79127#(and (<= main_a_x 43) (not (= main_x main_y))), 79126#(and (not (= main_x main_y)) (<= main_a_x 42)), 79129#(and (<= main_a_x 45) (not (= main_x main_y))), 79128#(and (<= main_a_x 44) (not (= main_x main_y))), 79131#(and (<= main_a_x 47) (not (= main_x main_y))), 79130#(and (<= main_a_x 46) (not (= main_x main_y))), 79133#(and (not (= main_x main_y)) (<= main_a_x 49)), 79132#(and (<= main_a_x 48) (not (= main_x main_y))), 79135#(and (<= main_a_x 51) (not (= main_x main_y))), 79134#(and (not (= main_x main_y)) (<= main_a_x 50)), 79137#(and (<= main_a_x 53) (not (= main_x main_y))), 79136#(and (not (= main_x main_y)) (<= main_a_x 52)), 79139#(and (not (= main_x main_y)) (<= main_a_x 55)), 79138#(and (<= main_a_x 54) (not (= main_x main_y))), 79141#(and (not (= main_x main_y)) (<= main_a_x 57)), 79140#(and (not (= main_x main_y)) (<= main_a_x 56)), 79143#(and (not (= main_x main_y)) (<= main_a_x 59)), 79142#(and (not (= main_x main_y)) (<= main_a_x 58)), 79145#(and (not (= main_x main_y)) (<= main_a_x 61)), 79144#(and (<= main_a_x 60) (not (= main_x main_y))), 79147#(and (<= main_a_x 63) (not (= main_x main_y))), 79146#(and (not (= main_x main_y)) (<= main_a_x 62)), 79149#(and (<= main_a_x 65) (not (= main_x main_y))), 79148#(and (<= main_a_x 64) (not (= main_x main_y))), 79151#(and (<= main_a_x 67) (not (= main_x main_y))), 79150#(and (<= main_a_x 66) (not (= main_x main_y))), 79153#(and (<= main_a_x 69) (not (= main_x main_y))), 79152#(and (not (= main_x main_y)) (<= main_a_x 68)), 79155#(and (<= main_a_x 71) (not (= main_x main_y))), 79154#(and (<= main_a_x 70) (not (= main_x main_y))), 79157#(and (not (= main_x main_y)) (<= main_a_x 73)), 79156#(and (not (= main_x main_y)) (<= main_a_x 72)), 79159#(and (<= main_a_x 75) (not (= main_x main_y))), 79158#(and (<= main_a_x 74) (not (= main_x main_y))), 79161#(and (not (= main_x main_y)) (<= main_a_x 77)), 79160#(and (not (= main_x main_y)) (<= main_a_x 76)), 79163#(and (<= main_a_x 79) (not (= main_x main_y))), 79162#(and (<= main_a_x 78) (not (= main_x main_y))), 79165#(and (not (= main_x main_y)) (<= main_a_x 81)), 79164#(and (not (= main_x main_y)) (<= main_a_x 80)), 79167#(and (not (= main_x main_y)) (<= main_a_x 83)), 79166#(and (not (= main_x main_y)) (<= main_a_x 82)), 79169#(and (not (= main_x main_y)) (<= main_a_x 85)), 79168#(and (<= main_a_x 84) (not (= main_x main_y))), 79171#(and (<= main_a_x 87) (not (= main_x main_y))), 79170#(and (not (= main_x main_y)) (<= main_a_x 86)), 79173#(and (<= main_a_x 89) (not (= main_x main_y))), 79172#(and (not (= main_x main_y)) (<= main_a_x 88)), 79175#(and (<= main_a_x 91) (not (= main_x main_y))), 79174#(and (not (= main_x main_y)) (<= main_a_x 90)), 79177#(and (not (= main_x main_y)) (<= main_a_x 93)), 79176#(and (not (= main_x main_y)) (<= main_a_x 92)), 79179#(and (<= main_a_x 95) (not (= main_x main_y))), 79178#(and (<= main_a_x 94) (not (= main_x main_y))), 79181#(and (<= main_a_x 97) (not (= main_x main_y))), 79180#(and (not (= main_x main_y)) (<= main_a_x 96)), 79183#(and (<= main_a_x 99) (not (= main_x main_y))), 79182#(and (not (= main_x main_y)) (<= main_a_x 98)), 79185#(and (not (= main_x main_y)) (<= main_a_x 101)), 79184#(and (<= main_a_x 100) (not (= main_x main_y))), 79187#(and (not (= main_x main_y)) (<= main_a_x 103)), 79186#(and (not (= main_x main_y)) (<= main_a_x 102)), 79189#(and (<= main_a_x 105) (not (= main_x main_y))), 79188#(and (<= main_a_x 104) (not (= main_x main_y))), 79191#(and (not (= main_x main_y)) (<= main_a_x 107)), 79190#(and (not (= main_x main_y)) (<= main_a_x 106)), 79193#(and (not (= main_x main_y)) (<= main_a_x 109)), 79192#(and (not (= main_x main_y)) (<= main_a_x 108)), 79195#(and (not (= main_x main_y)) (<= main_a_x 111)), 79194#(and (<= main_a_x 110) (not (= main_x main_y))), 79197#(and (<= main_a_x 113) (not (= main_x main_y))), 79196#(and (<= main_a_x 112) (not (= main_x main_y))), 79199#(and (not (= main_x main_y)) (<= main_a_x 115)), 79198#(and (not (= main_x main_y)) (<= main_a_x 114)), 79201#(and (<= main_a_x 117) (not (= main_x main_y))), 79200#(and (not (= main_x main_y)) (<= main_a_x 116)), 79203#(and (not (= main_x main_y)) (<= main_a_x 119)), 79202#(and (not (= main_x main_y)) (<= main_a_x 118)), 79205#(and (not (= main_x main_y)) (<= main_a_x 121)), 79204#(and (not (= main_x main_y)) (<= main_a_x 120)), 79207#(and (<= main_a_x 123) (not (= main_x main_y))), 79206#(and (not (= main_x main_y)) (<= main_a_x 122)), 79209#(and (not (= main_x main_y)) (<= main_a_x 125)), 79208#(and (not (= main_x main_y)) (<= main_a_x 124)), 79211#(and (not (= main_x main_y)) (<= main_a_x 127)), 79210#(and (not (= main_x main_y)) (<= main_a_x 126)), 79213#(and (<= main_a_x 129) (not (= main_x main_y))), 79212#(and (<= main_a_x 128) (not (= main_x main_y))), 79215#(and (not (= main_x main_y)) (<= main_a_x 131)), 79214#(and (not (= main_x main_y)) (<= main_a_x 130)), 79217#(and (not (= main_x main_y)) (<= main_a_x 133)), 79216#(and (not (= main_x main_y)) (<= main_a_x 132)), 79219#(and (<= main_a_x 135) (not (= main_x main_y))), 79218#(and (not (= main_x main_y)) (<= main_a_x 134)), 79221#(and (not (= main_x main_y)) (<= main_a_x 137)), 79220#(and (<= main_a_x 136) (not (= main_x main_y))), 79223#(and (not (= main_x main_y)) (<= main_a_x 139)), 79222#(and (not (= main_x main_y)) (<= main_a_x 138)), 79225#(and (<= main_a_x 141) (not (= main_x main_y))), 79224#(and (<= main_a_x 140) (not (= main_x main_y))), 79227#(and (<= main_a_x 143) (not (= main_x main_y))), 79226#(and (not (= main_x main_y)) (<= main_a_x 142)), 79229#(and (not (= main_x main_y)) (<= main_a_x 145)), 79228#(and (<= main_a_x 144) (not (= main_x main_y))), 79231#(and (not (= main_x main_y)) (<= main_a_x 147)), 79230#(and (<= main_a_x 146) (not (= main_x main_y))), 79233#(and (not (= main_x main_y)) (<= main_a_x 149)), 79232#(and (<= main_a_x 148) (not (= main_x main_y))), 79235#(and (<= main_a_x 151) (not (= main_x main_y))), 79234#(and (not (= main_x main_y)) (<= main_a_x 150)), 79237#(and (not (= main_x main_y)) (<= main_a_x 153)), 79236#(and (not (= main_x main_y)) (<= main_a_x 152)), 79239#(and (not (= main_x main_y)) (<= main_a_x 155)), 79238#(and (<= main_a_x 154) (not (= main_x main_y))), 79241#(and (<= main_a_x 157) (not (= main_x main_y))), 79240#(and (<= main_a_x 156) (not (= main_x main_y))), 79243#(and (<= main_a_x 159) (not (= main_x main_y))), 79242#(and (<= main_a_x 158) (not (= main_x main_y))), 79245#(and (not (= main_x main_y)) (<= main_a_x 161)), 79244#(and (<= main_a_x 160) (not (= main_x main_y))), 79247#(and (not (= main_x main_y)) (<= main_a_x 163)), 79246#(and (<= main_a_x 162) (not (= main_x main_y))), 79249#(and (<= main_a_x 165) (not (= main_x main_y))), 79248#(and (not (= main_x main_y)) (<= main_a_x 164)), 79251#(and (not (= main_x main_y)) (<= main_a_x 167)), 79250#(and (<= main_a_x 166) (not (= main_x main_y))), 79253#(and (<= main_a_x 169) (not (= main_x main_y))), 79252#(and (<= main_a_x 168) (not (= main_x main_y))), 79255#(and (<= main_a_x 171) (not (= main_x main_y))), 79254#(and (not (= main_x main_y)) (<= main_a_x 170)), 79257#(<= main_a_x 173), 79256#(and (not (= main_x main_y)) (<= main_a_x 172)), 79083#false, 79082#true, 79085#(and (not (= main_x main_y)) (<= main_a_x 1)), 79084#(and (not (= main_x main_y)) (<= main_a_x 0)), 79087#(and (not (= main_x main_y)) (<= main_a_x 3)), 79086#(and (not (= main_x main_y)) (<= main_a_x 2)), 79089#(and (<= main_a_x 5) (not (= main_x main_y))), 79088#(and (<= main_a_x 4) (not (= main_x main_y))), 79091#(and (<= main_a_x 7) (not (= main_x main_y))), 79090#(and (not (= main_x main_y)) (<= main_a_x 6)), 79093#(and (not (= main_x main_y)) (<= main_a_x 9)), 79092#(and (not (= main_x main_y)) (<= main_a_x 8)), 79095#(and (not (= main_x main_y)) (<= main_a_x 11)), 79094#(and (<= main_a_x 10) (not (= main_x main_y))), 79097#(and (<= main_a_x 13) (not (= main_x main_y))), 79096#(and (not (= main_x main_y)) (<= main_a_x 12)), 79099#(and (<= main_a_x 15) (not (= main_x main_y))), 79098#(and (not (= main_x main_y)) (<= main_a_x 14)), 79101#(and (not (= main_x main_y)) (<= main_a_x 17)), 79100#(and (not (= main_x main_y)) (<= main_a_x 16)), 79103#(and (<= main_a_x 19) (not (= main_x main_y))), 79102#(and (<= main_a_x 18) (not (= main_x main_y)))] [2018-07-23 13:55:47,283 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 13:55:47,283 INFO L450 AbstractCegarLoop]: Interpolant automaton has 176 states [2018-07-23 13:55:47,285 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 176 interpolants. [2018-07-23 13:55:47,286 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15400, Invalid=15400, Unknown=0, NotChecked=0, Total=30800 [2018-07-23 13:55:47,286 INFO L87 Difference]: Start difference. First operand 177 states and 177 transitions. Second operand 176 states. [2018-07-23 13:55:47,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:47,906 INFO L93 Difference]: Finished difference Result 180 states and 180 transitions. [2018-07-23 13:55:47,906 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 176 states. [2018-07-23 13:55:47,906 INFO L78 Accepts]: Start accepts. Automaton has 176 states. Word has length 176 [2018-07-23 13:55:47,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:47,907 INFO L225 Difference]: With dead ends: 180 [2018-07-23 13:55:47,907 INFO L226 Difference]: Without dead ends: 178 [2018-07-23 13:55:47,908 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 174 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=15400, Invalid=15400, Unknown=0, NotChecked=0, Total=30800 [2018-07-23 13:55:47,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2018-07-23 13:55:47,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2018-07-23 13:55:47,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2018-07-23 13:55:47,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 178 transitions. [2018-07-23 13:55:47,912 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 178 transitions. Word has length 176 [2018-07-23 13:55:47,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:47,912 INFO L471 AbstractCegarLoop]: Abstraction has 178 states and 178 transitions. [2018-07-23 13:55:47,912 INFO L472 AbstractCegarLoop]: Interpolant automaton has 176 states. [2018-07-23 13:55:47,913 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 178 transitions. [2018-07-23 13:55:47,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2018-07-23 13:55:47,913 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:47,913 INFO L357 BasicCegarLoop]: trace histogram [174, 1, 1, 1] [2018-07-23 13:55:47,913 INFO L414 AbstractCegarLoop]: === Iteration 175 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:47,913 INFO L82 PathProgramCache]: Analyzing trace with hash 858187596, now seen corresponding path program 174 times [2018-07-23 13:55:47,913 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:49,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:51,687 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 13:55:51,687 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:51,687 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [176] total 176 [2018-07-23 13:55:51,687 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:51,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:51,688 INFO L185 omatonBuilderFactory]: Interpolants [80129#(and (not (= main_x main_y)) (<= main_a_x 153)), 80128#(and (not (= main_x main_y)) (<= main_a_x 152)), 80131#(and (not (= main_x main_y)) (<= main_a_x 155)), 80130#(and (<= main_a_x 154) (not (= main_x main_y))), 80133#(and (<= main_a_x 157) (not (= main_x main_y))), 80132#(and (<= main_a_x 156) (not (= main_x main_y))), 80135#(and (<= main_a_x 159) (not (= main_x main_y))), 80134#(and (<= main_a_x 158) (not (= main_x main_y))), 80137#(and (not (= main_x main_y)) (<= main_a_x 161)), 80136#(and (<= main_a_x 160) (not (= main_x main_y))), 80139#(and (not (= main_x main_y)) (<= main_a_x 163)), 80138#(and (<= main_a_x 162) (not (= main_x main_y))), 80141#(and (<= main_a_x 165) (not (= main_x main_y))), 80140#(and (not (= main_x main_y)) (<= main_a_x 164)), 80143#(and (not (= main_x main_y)) (<= main_a_x 167)), 80142#(and (<= main_a_x 166) (not (= main_x main_y))), 80145#(and (<= main_a_x 169) (not (= main_x main_y))), 80144#(and (<= main_a_x 168) (not (= main_x main_y))), 80147#(and (<= main_a_x 171) (not (= main_x main_y))), 80146#(and (not (= main_x main_y)) (<= main_a_x 170)), 80149#(and (not (= main_x main_y)) (<= main_a_x 173)), 80148#(and (not (= main_x main_y)) (<= main_a_x 172)), 80150#(<= main_a_x 174), 79975#false, 79974#true, 79977#(and (not (= main_x main_y)) (<= main_a_x 1)), 79976#(and (not (= main_x main_y)) (<= main_a_x 0)), 79979#(and (not (= main_x main_y)) (<= main_a_x 3)), 79978#(and (not (= main_x main_y)) (<= main_a_x 2)), 79981#(and (<= main_a_x 5) (not (= main_x main_y))), 79980#(and (<= main_a_x 4) (not (= main_x main_y))), 79983#(and (<= main_a_x 7) (not (= main_x main_y))), 79982#(and (not (= main_x main_y)) (<= main_a_x 6)), 79985#(and (not (= main_x main_y)) (<= main_a_x 9)), 79984#(and (not (= main_x main_y)) (<= main_a_x 8)), 79987#(and (not (= main_x main_y)) (<= main_a_x 11)), 79986#(and (<= main_a_x 10) (not (= main_x main_y))), 79989#(and (<= main_a_x 13) (not (= main_x main_y))), 79988#(and (not (= main_x main_y)) (<= main_a_x 12)), 79991#(and (<= main_a_x 15) (not (= main_x main_y))), 79990#(and (not (= main_x main_y)) (<= main_a_x 14)), 79993#(and (not (= main_x main_y)) (<= main_a_x 17)), 79992#(and (not (= main_x main_y)) (<= main_a_x 16)), 79995#(and (<= main_a_x 19) (not (= main_x main_y))), 79994#(and (<= main_a_x 18) (not (= main_x main_y))), 79997#(and (not (= main_x main_y)) (<= main_a_x 21)), 79996#(and (not (= main_x main_y)) (<= main_a_x 20)), 79999#(and (<= main_a_x 23) (not (= main_x main_y))), 79998#(and (not (= main_x main_y)) (<= main_a_x 22)), 80001#(and (<= main_a_x 25) (not (= main_x main_y))), 80000#(and (not (= main_x main_y)) (<= main_a_x 24)), 80003#(and (not (= main_x main_y)) (<= main_a_x 27)), 80002#(and (not (= main_x main_y)) (<= main_a_x 26)), 80005#(and (not (= main_x main_y)) (<= main_a_x 29)), 80004#(and (not (= main_x main_y)) (<= main_a_x 28)), 80007#(and (<= main_a_x 31) (not (= main_x main_y))), 80006#(and (<= main_a_x 30) (not (= main_x main_y))), 80009#(and (not (= main_x main_y)) (<= main_a_x 33)), 80008#(and (not (= main_x main_y)) (<= main_a_x 32)), 80011#(and (<= main_a_x 35) (not (= main_x main_y))), 80010#(and (not (= main_x main_y)) (<= main_a_x 34)), 80013#(and (<= main_a_x 37) (not (= main_x main_y))), 80012#(and (not (= main_x main_y)) (<= main_a_x 36)), 80015#(and (<= main_a_x 39) (not (= main_x main_y))), 80014#(and (not (= main_x main_y)) (<= main_a_x 38)), 80017#(and (not (= main_x main_y)) (<= main_a_x 41)), 80016#(and (<= main_a_x 40) (not (= main_x main_y))), 80019#(and (<= main_a_x 43) (not (= main_x main_y))), 80018#(and (not (= main_x main_y)) (<= main_a_x 42)), 80021#(and (<= main_a_x 45) (not (= main_x main_y))), 80020#(and (<= main_a_x 44) (not (= main_x main_y))), 80023#(and (<= main_a_x 47) (not (= main_x main_y))), 80022#(and (<= main_a_x 46) (not (= main_x main_y))), 80025#(and (not (= main_x main_y)) (<= main_a_x 49)), 80024#(and (<= main_a_x 48) (not (= main_x main_y))), 80027#(and (<= main_a_x 51) (not (= main_x main_y))), 80026#(and (not (= main_x main_y)) (<= main_a_x 50)), 80029#(and (<= main_a_x 53) (not (= main_x main_y))), 80028#(and (not (= main_x main_y)) (<= main_a_x 52)), 80031#(and (not (= main_x main_y)) (<= main_a_x 55)), 80030#(and (<= main_a_x 54) (not (= main_x main_y))), 80033#(and (not (= main_x main_y)) (<= main_a_x 57)), 80032#(and (not (= main_x main_y)) (<= main_a_x 56)), 80035#(and (not (= main_x main_y)) (<= main_a_x 59)), 80034#(and (not (= main_x main_y)) (<= main_a_x 58)), 80037#(and (not (= main_x main_y)) (<= main_a_x 61)), 80036#(and (<= main_a_x 60) (not (= main_x main_y))), 80039#(and (<= main_a_x 63) (not (= main_x main_y))), 80038#(and (not (= main_x main_y)) (<= main_a_x 62)), 80041#(and (<= main_a_x 65) (not (= main_x main_y))), 80040#(and (<= main_a_x 64) (not (= main_x main_y))), 80043#(and (<= main_a_x 67) (not (= main_x main_y))), 80042#(and (<= main_a_x 66) (not (= main_x main_y))), 80045#(and (<= main_a_x 69) (not (= main_x main_y))), 80044#(and (not (= main_x main_y)) (<= main_a_x 68)), 80047#(and (<= main_a_x 71) (not (= main_x main_y))), 80046#(and (<= main_a_x 70) (not (= main_x main_y))), 80049#(and (not (= main_x main_y)) (<= main_a_x 73)), 80048#(and (not (= main_x main_y)) (<= main_a_x 72)), 80051#(and (<= main_a_x 75) (not (= main_x main_y))), 80050#(and (<= main_a_x 74) (not (= main_x main_y))), 80053#(and (not (= main_x main_y)) (<= main_a_x 77)), 80052#(and (not (= main_x main_y)) (<= main_a_x 76)), 80055#(and (<= main_a_x 79) (not (= main_x main_y))), 80054#(and (<= main_a_x 78) (not (= main_x main_y))), 80057#(and (not (= main_x main_y)) (<= main_a_x 81)), 80056#(and (not (= main_x main_y)) (<= main_a_x 80)), 80059#(and (not (= main_x main_y)) (<= main_a_x 83)), 80058#(and (not (= main_x main_y)) (<= main_a_x 82)), 80061#(and (not (= main_x main_y)) (<= main_a_x 85)), 80060#(and (<= main_a_x 84) (not (= main_x main_y))), 80063#(and (<= main_a_x 87) (not (= main_x main_y))), 80062#(and (not (= main_x main_y)) (<= main_a_x 86)), 80065#(and (<= main_a_x 89) (not (= main_x main_y))), 80064#(and (not (= main_x main_y)) (<= main_a_x 88)), 80067#(and (<= main_a_x 91) (not (= main_x main_y))), 80066#(and (not (= main_x main_y)) (<= main_a_x 90)), 80069#(and (not (= main_x main_y)) (<= main_a_x 93)), 80068#(and (not (= main_x main_y)) (<= main_a_x 92)), 80071#(and (<= main_a_x 95) (not (= main_x main_y))), 80070#(and (<= main_a_x 94) (not (= main_x main_y))), 80073#(and (<= main_a_x 97) (not (= main_x main_y))), 80072#(and (not (= main_x main_y)) (<= main_a_x 96)), 80075#(and (<= main_a_x 99) (not (= main_x main_y))), 80074#(and (not (= main_x main_y)) (<= main_a_x 98)), 80077#(and (not (= main_x main_y)) (<= main_a_x 101)), 80076#(and (<= main_a_x 100) (not (= main_x main_y))), 80079#(and (not (= main_x main_y)) (<= main_a_x 103)), 80078#(and (not (= main_x main_y)) (<= main_a_x 102)), 80081#(and (<= main_a_x 105) (not (= main_x main_y))), 80080#(and (<= main_a_x 104) (not (= main_x main_y))), 80083#(and (not (= main_x main_y)) (<= main_a_x 107)), 80082#(and (not (= main_x main_y)) (<= main_a_x 106)), 80085#(and (not (= main_x main_y)) (<= main_a_x 109)), 80084#(and (not (= main_x main_y)) (<= main_a_x 108)), 80087#(and (not (= main_x main_y)) (<= main_a_x 111)), 80086#(and (<= main_a_x 110) (not (= main_x main_y))), 80089#(and (<= main_a_x 113) (not (= main_x main_y))), 80088#(and (<= main_a_x 112) (not (= main_x main_y))), 80091#(and (not (= main_x main_y)) (<= main_a_x 115)), 80090#(and (not (= main_x main_y)) (<= main_a_x 114)), 80093#(and (<= main_a_x 117) (not (= main_x main_y))), 80092#(and (not (= main_x main_y)) (<= main_a_x 116)), 80095#(and (not (= main_x main_y)) (<= main_a_x 119)), 80094#(and (not (= main_x main_y)) (<= main_a_x 118)), 80097#(and (not (= main_x main_y)) (<= main_a_x 121)), 80096#(and (not (= main_x main_y)) (<= main_a_x 120)), 80099#(and (<= main_a_x 123) (not (= main_x main_y))), 80098#(and (not (= main_x main_y)) (<= main_a_x 122)), 80101#(and (not (= main_x main_y)) (<= main_a_x 125)), 80100#(and (not (= main_x main_y)) (<= main_a_x 124)), 80103#(and (not (= main_x main_y)) (<= main_a_x 127)), 80102#(and (not (= main_x main_y)) (<= main_a_x 126)), 80105#(and (<= main_a_x 129) (not (= main_x main_y))), 80104#(and (<= main_a_x 128) (not (= main_x main_y))), 80107#(and (not (= main_x main_y)) (<= main_a_x 131)), 80106#(and (not (= main_x main_y)) (<= main_a_x 130)), 80109#(and (not (= main_x main_y)) (<= main_a_x 133)), 80108#(and (not (= main_x main_y)) (<= main_a_x 132)), 80111#(and (<= main_a_x 135) (not (= main_x main_y))), 80110#(and (not (= main_x main_y)) (<= main_a_x 134)), 80113#(and (not (= main_x main_y)) (<= main_a_x 137)), 80112#(and (<= main_a_x 136) (not (= main_x main_y))), 80115#(and (not (= main_x main_y)) (<= main_a_x 139)), 80114#(and (not (= main_x main_y)) (<= main_a_x 138)), 80117#(and (<= main_a_x 141) (not (= main_x main_y))), 80116#(and (<= main_a_x 140) (not (= main_x main_y))), 80119#(and (<= main_a_x 143) (not (= main_x main_y))), 80118#(and (not (= main_x main_y)) (<= main_a_x 142)), 80121#(and (not (= main_x main_y)) (<= main_a_x 145)), 80120#(and (<= main_a_x 144) (not (= main_x main_y))), 80123#(and (not (= main_x main_y)) (<= main_a_x 147)), 80122#(and (<= main_a_x 146) (not (= main_x main_y))), 80125#(and (not (= main_x main_y)) (<= main_a_x 149)), 80124#(and (<= main_a_x 148) (not (= main_x main_y))), 80127#(and (<= main_a_x 151) (not (= main_x main_y))), 80126#(and (not (= main_x main_y)) (<= main_a_x 150))] [2018-07-23 13:55:51,689 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 13:55:51,689 INFO L450 AbstractCegarLoop]: Interpolant automaton has 177 states [2018-07-23 13:55:51,691 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 177 interpolants. [2018-07-23 13:55:51,692 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15576, Invalid=15576, Unknown=0, NotChecked=0, Total=31152 [2018-07-23 13:55:51,692 INFO L87 Difference]: Start difference. First operand 178 states and 178 transitions. Second operand 177 states. [2018-07-23 13:55:52,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:52,253 INFO L93 Difference]: Finished difference Result 181 states and 181 transitions. [2018-07-23 13:55:52,253 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 177 states. [2018-07-23 13:55:52,253 INFO L78 Accepts]: Start accepts. Automaton has 177 states. Word has length 177 [2018-07-23 13:55:52,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:52,254 INFO L225 Difference]: With dead ends: 181 [2018-07-23 13:55:52,254 INFO L226 Difference]: Without dead ends: 179 [2018-07-23 13:55:52,255 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 175 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=15576, Invalid=15576, Unknown=0, NotChecked=0, Total=31152 [2018-07-23 13:55:52,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2018-07-23 13:55:52,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2018-07-23 13:55:52,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2018-07-23 13:55:52,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 179 transitions. [2018-07-23 13:55:52,261 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 179 transitions. Word has length 177 [2018-07-23 13:55:52,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:52,261 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 179 transitions. [2018-07-23 13:55:52,261 INFO L472 AbstractCegarLoop]: Interpolant automaton has 177 states. [2018-07-23 13:55:52,261 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 179 transitions. [2018-07-23 13:55:52,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2018-07-23 13:55:52,261 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:52,261 INFO L357 BasicCegarLoop]: trace histogram [175, 1, 1, 1] [2018-07-23 13:55:52,262 INFO L414 AbstractCegarLoop]: === Iteration 176 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:52,262 INFO L82 PathProgramCache]: Analyzing trace with hash 834027079, now seen corresponding path program 175 times [2018-07-23 13:55:52,262 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:53,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:56,235 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 13:55:56,236 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:56,236 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [177] total 177 [2018-07-23 13:55:56,236 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:56,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:56,237 INFO L185 omatonBuilderFactory]: Interpolants [80897#(and (not (= main_x main_y)) (<= main_a_x 24)), 80896#(and (<= main_a_x 23) (not (= main_x main_y))), 80899#(and (not (= main_x main_y)) (<= main_a_x 26)), 80898#(and (<= main_a_x 25) (not (= main_x main_y))), 80901#(and (not (= main_x main_y)) (<= main_a_x 28)), 80900#(and (not (= main_x main_y)) (<= main_a_x 27)), 80903#(and (<= main_a_x 30) (not (= main_x main_y))), 80902#(and (not (= main_x main_y)) (<= main_a_x 29)), 80905#(and (not (= main_x main_y)) (<= main_a_x 32)), 80904#(and (<= main_a_x 31) (not (= main_x main_y))), 80907#(and (not (= main_x main_y)) (<= main_a_x 34)), 80906#(and (not (= main_x main_y)) (<= main_a_x 33)), 80909#(and (not (= main_x main_y)) (<= main_a_x 36)), 80908#(and (<= main_a_x 35) (not (= main_x main_y))), 80911#(and (not (= main_x main_y)) (<= main_a_x 38)), 80910#(and (<= main_a_x 37) (not (= main_x main_y))), 80913#(and (<= main_a_x 40) (not (= main_x main_y))), 80912#(and (<= main_a_x 39) (not (= main_x main_y))), 80915#(and (not (= main_x main_y)) (<= main_a_x 42)), 80914#(and (not (= main_x main_y)) (<= main_a_x 41)), 80917#(and (<= main_a_x 44) (not (= main_x main_y))), 80916#(and (<= main_a_x 43) (not (= main_x main_y))), 80919#(and (<= main_a_x 46) (not (= main_x main_y))), 80918#(and (<= main_a_x 45) (not (= main_x main_y))), 80921#(and (<= main_a_x 48) (not (= main_x main_y))), 80920#(and (<= main_a_x 47) (not (= main_x main_y))), 80923#(and (not (= main_x main_y)) (<= main_a_x 50)), 80922#(and (not (= main_x main_y)) (<= main_a_x 49)), 80925#(and (not (= main_x main_y)) (<= main_a_x 52)), 80924#(and (<= main_a_x 51) (not (= main_x main_y))), 80927#(and (<= main_a_x 54) (not (= main_x main_y))), 80926#(and (<= main_a_x 53) (not (= main_x main_y))), 80929#(and (not (= main_x main_y)) (<= main_a_x 56)), 80928#(and (not (= main_x main_y)) (<= main_a_x 55)), 80931#(and (not (= main_x main_y)) (<= main_a_x 58)), 80930#(and (not (= main_x main_y)) (<= main_a_x 57)), 80933#(and (<= main_a_x 60) (not (= main_x main_y))), 80932#(and (not (= main_x main_y)) (<= main_a_x 59)), 80935#(and (not (= main_x main_y)) (<= main_a_x 62)), 80934#(and (not (= main_x main_y)) (<= main_a_x 61)), 80937#(and (<= main_a_x 64) (not (= main_x main_y))), 80936#(and (<= main_a_x 63) (not (= main_x main_y))), 80939#(and (<= main_a_x 66) (not (= main_x main_y))), 80938#(and (<= main_a_x 65) (not (= main_x main_y))), 80941#(and (not (= main_x main_y)) (<= main_a_x 68)), 80940#(and (<= main_a_x 67) (not (= main_x main_y))), 80943#(and (<= main_a_x 70) (not (= main_x main_y))), 80942#(and (<= main_a_x 69) (not (= main_x main_y))), 80945#(and (not (= main_x main_y)) (<= main_a_x 72)), 80944#(and (<= main_a_x 71) (not (= main_x main_y))), 80947#(and (<= main_a_x 74) (not (= main_x main_y))), 80946#(and (not (= main_x main_y)) (<= main_a_x 73)), 80949#(and (not (= main_x main_y)) (<= main_a_x 76)), 80948#(and (<= main_a_x 75) (not (= main_x main_y))), 80951#(and (<= main_a_x 78) (not (= main_x main_y))), 80950#(and (not (= main_x main_y)) (<= main_a_x 77)), 80953#(and (not (= main_x main_y)) (<= main_a_x 80)), 80952#(and (<= main_a_x 79) (not (= main_x main_y))), 80955#(and (not (= main_x main_y)) (<= main_a_x 82)), 80954#(and (not (= main_x main_y)) (<= main_a_x 81)), 80957#(and (<= main_a_x 84) (not (= main_x main_y))), 80956#(and (not (= main_x main_y)) (<= main_a_x 83)), 80959#(and (not (= main_x main_y)) (<= main_a_x 86)), 80958#(and (not (= main_x main_y)) (<= main_a_x 85)), 80961#(and (not (= main_x main_y)) (<= main_a_x 88)), 80960#(and (<= main_a_x 87) (not (= main_x main_y))), 80963#(and (not (= main_x main_y)) (<= main_a_x 90)), 80962#(and (<= main_a_x 89) (not (= main_x main_y))), 80965#(and (not (= main_x main_y)) (<= main_a_x 92)), 80964#(and (<= main_a_x 91) (not (= main_x main_y))), 80967#(and (<= main_a_x 94) (not (= main_x main_y))), 80966#(and (not (= main_x main_y)) (<= main_a_x 93)), 80969#(and (not (= main_x main_y)) (<= main_a_x 96)), 80968#(and (<= main_a_x 95) (not (= main_x main_y))), 80971#(and (not (= main_x main_y)) (<= main_a_x 98)), 80970#(and (<= main_a_x 97) (not (= main_x main_y))), 80973#(and (<= main_a_x 100) (not (= main_x main_y))), 80972#(and (<= main_a_x 99) (not (= main_x main_y))), 80975#(and (not (= main_x main_y)) (<= main_a_x 102)), 80974#(and (not (= main_x main_y)) (<= main_a_x 101)), 80977#(and (<= main_a_x 104) (not (= main_x main_y))), 80976#(and (not (= main_x main_y)) (<= main_a_x 103)), 80979#(and (not (= main_x main_y)) (<= main_a_x 106)), 80978#(and (<= main_a_x 105) (not (= main_x main_y))), 80981#(and (not (= main_x main_y)) (<= main_a_x 108)), 80980#(and (not (= main_x main_y)) (<= main_a_x 107)), 80983#(and (<= main_a_x 110) (not (= main_x main_y))), 80982#(and (not (= main_x main_y)) (<= main_a_x 109)), 80985#(and (<= main_a_x 112) (not (= main_x main_y))), 80984#(and (not (= main_x main_y)) (<= main_a_x 111)), 80987#(and (not (= main_x main_y)) (<= main_a_x 114)), 80986#(and (<= main_a_x 113) (not (= main_x main_y))), 80989#(and (not (= main_x main_y)) (<= main_a_x 116)), 80988#(and (not (= main_x main_y)) (<= main_a_x 115)), 80991#(and (not (= main_x main_y)) (<= main_a_x 118)), 80990#(and (<= main_a_x 117) (not (= main_x main_y))), 80993#(and (not (= main_x main_y)) (<= main_a_x 120)), 80992#(and (not (= main_x main_y)) (<= main_a_x 119)), 80995#(and (not (= main_x main_y)) (<= main_a_x 122)), 80994#(and (not (= main_x main_y)) (<= main_a_x 121)), 80997#(and (not (= main_x main_y)) (<= main_a_x 124)), 80996#(and (<= main_a_x 123) (not (= main_x main_y))), 80999#(and (not (= main_x main_y)) (<= main_a_x 126)), 80998#(and (not (= main_x main_y)) (<= main_a_x 125)), 81001#(and (<= main_a_x 128) (not (= main_x main_y))), 81000#(and (not (= main_x main_y)) (<= main_a_x 127)), 81003#(and (not (= main_x main_y)) (<= main_a_x 130)), 81002#(and (<= main_a_x 129) (not (= main_x main_y))), 81005#(and (not (= main_x main_y)) (<= main_a_x 132)), 81004#(and (not (= main_x main_y)) (<= main_a_x 131)), 81007#(and (not (= main_x main_y)) (<= main_a_x 134)), 81006#(and (not (= main_x main_y)) (<= main_a_x 133)), 81009#(and (<= main_a_x 136) (not (= main_x main_y))), 81008#(and (<= main_a_x 135) (not (= main_x main_y))), 81011#(and (not (= main_x main_y)) (<= main_a_x 138)), 81010#(and (not (= main_x main_y)) (<= main_a_x 137)), 81013#(and (<= main_a_x 140) (not (= main_x main_y))), 81012#(and (not (= main_x main_y)) (<= main_a_x 139)), 81015#(and (not (= main_x main_y)) (<= main_a_x 142)), 81014#(and (<= main_a_x 141) (not (= main_x main_y))), 81017#(and (<= main_a_x 144) (not (= main_x main_y))), 81016#(and (<= main_a_x 143) (not (= main_x main_y))), 81019#(and (<= main_a_x 146) (not (= main_x main_y))), 81018#(and (not (= main_x main_y)) (<= main_a_x 145)), 81021#(and (<= main_a_x 148) (not (= main_x main_y))), 81020#(and (not (= main_x main_y)) (<= main_a_x 147)), 81023#(and (not (= main_x main_y)) (<= main_a_x 150)), 81022#(and (not (= main_x main_y)) (<= main_a_x 149)), 81025#(and (not (= main_x main_y)) (<= main_a_x 152)), 81024#(and (<= main_a_x 151) (not (= main_x main_y))), 81027#(and (<= main_a_x 154) (not (= main_x main_y))), 81026#(and (not (= main_x main_y)) (<= main_a_x 153)), 81029#(and (<= main_a_x 156) (not (= main_x main_y))), 81028#(and (not (= main_x main_y)) (<= main_a_x 155)), 81031#(and (<= main_a_x 158) (not (= main_x main_y))), 81030#(and (<= main_a_x 157) (not (= main_x main_y))), 81033#(and (<= main_a_x 160) (not (= main_x main_y))), 81032#(and (<= main_a_x 159) (not (= main_x main_y))), 81035#(and (<= main_a_x 162) (not (= main_x main_y))), 81034#(and (not (= main_x main_y)) (<= main_a_x 161)), 81037#(and (not (= main_x main_y)) (<= main_a_x 164)), 81036#(and (not (= main_x main_y)) (<= main_a_x 163)), 81039#(and (<= main_a_x 166) (not (= main_x main_y))), 81038#(and (<= main_a_x 165) (not (= main_x main_y))), 81041#(and (<= main_a_x 168) (not (= main_x main_y))), 81040#(and (not (= main_x main_y)) (<= main_a_x 167)), 81043#(and (not (= main_x main_y)) (<= main_a_x 170)), 81042#(and (<= main_a_x 169) (not (= main_x main_y))), 81045#(and (not (= main_x main_y)) (<= main_a_x 172)), 81044#(and (<= main_a_x 171) (not (= main_x main_y))), 81047#(and (not (= main_x main_y)) (<= main_a_x 174)), 81046#(and (not (= main_x main_y)) (<= main_a_x 173)), 81048#(<= main_a_x 175), 80871#true, 80873#(and (not (= main_x main_y)) (<= main_a_x 0)), 80872#false, 80875#(and (not (= main_x main_y)) (<= main_a_x 2)), 80874#(and (not (= main_x main_y)) (<= main_a_x 1)), 80877#(and (<= main_a_x 4) (not (= main_x main_y))), 80876#(and (not (= main_x main_y)) (<= main_a_x 3)), 80879#(and (not (= main_x main_y)) (<= main_a_x 6)), 80878#(and (<= main_a_x 5) (not (= main_x main_y))), 80881#(and (not (= main_x main_y)) (<= main_a_x 8)), 80880#(and (<= main_a_x 7) (not (= main_x main_y))), 80883#(and (<= main_a_x 10) (not (= main_x main_y))), 80882#(and (not (= main_x main_y)) (<= main_a_x 9)), 80885#(and (not (= main_x main_y)) (<= main_a_x 12)), 80884#(and (not (= main_x main_y)) (<= main_a_x 11)), 80887#(and (not (= main_x main_y)) (<= main_a_x 14)), 80886#(and (<= main_a_x 13) (not (= main_x main_y))), 80889#(and (not (= main_x main_y)) (<= main_a_x 16)), 80888#(and (<= main_a_x 15) (not (= main_x main_y))), 80891#(and (<= main_a_x 18) (not (= main_x main_y))), 80890#(and (not (= main_x main_y)) (<= main_a_x 17)), 80893#(and (not (= main_x main_y)) (<= main_a_x 20)), 80892#(and (<= main_a_x 19) (not (= main_x main_y))), 80895#(and (not (= main_x main_y)) (<= main_a_x 22)), 80894#(and (not (= main_x main_y)) (<= main_a_x 21))] [2018-07-23 13:55:56,238 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 13:55:56,238 INFO L450 AbstractCegarLoop]: Interpolant automaton has 178 states [2018-07-23 13:55:56,240 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 178 interpolants. [2018-07-23 13:55:56,240 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15753, Invalid=15753, Unknown=0, NotChecked=0, Total=31506 [2018-07-23 13:55:56,241 INFO L87 Difference]: Start difference. First operand 179 states and 179 transitions. Second operand 178 states. [2018-07-23 13:55:57,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:57,033 INFO L93 Difference]: Finished difference Result 182 states and 182 transitions. [2018-07-23 13:55:57,033 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 178 states. [2018-07-23 13:55:57,033 INFO L78 Accepts]: Start accepts. Automaton has 178 states. Word has length 178 [2018-07-23 13:55:57,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:57,034 INFO L225 Difference]: With dead ends: 182 [2018-07-23 13:55:57,034 INFO L226 Difference]: Without dead ends: 180 [2018-07-23 13:55:57,035 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 176 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=15753, Invalid=15753, Unknown=0, NotChecked=0, Total=31506 [2018-07-23 13:55:57,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2018-07-23 13:55:57,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2018-07-23 13:55:57,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2018-07-23 13:55:57,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 180 transitions. [2018-07-23 13:55:57,041 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 180 transitions. Word has length 178 [2018-07-23 13:55:57,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:57,041 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 180 transitions. [2018-07-23 13:55:57,041 INFO L472 AbstractCegarLoop]: Interpolant automaton has 178 states. [2018-07-23 13:55:57,041 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 180 transitions. [2018-07-23 13:55:57,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2018-07-23 13:55:57,041 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:57,041 INFO L357 BasicCegarLoop]: trace histogram [176, 1, 1, 1] [2018-07-23 13:55:57,042 INFO L414 AbstractCegarLoop]: === Iteration 177 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:57,042 INFO L82 PathProgramCache]: Analyzing trace with hash 85051052, now seen corresponding path program 176 times [2018-07-23 13:55:57,042 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:58,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:56:00,691 INFO L134 CoverageAnalysis]: Checked inductivity of 15576 backedges. 0 proven. 15576 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:00,692 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:56:00,692 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [178] total 178 [2018-07-23 13:56:00,692 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:56:00,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:00,693 INFO L185 omatonBuilderFactory]: Interpolants [81921#(and (<= main_a_x 146) (not (= main_x main_y))), 81920#(and (not (= main_x main_y)) (<= main_a_x 145)), 81923#(and (<= main_a_x 148) (not (= main_x main_y))), 81922#(and (not (= main_x main_y)) (<= main_a_x 147)), 81925#(and (not (= main_x main_y)) (<= main_a_x 150)), 81924#(and (not (= main_x main_y)) (<= main_a_x 149)), 81927#(and (not (= main_x main_y)) (<= main_a_x 152)), 81926#(and (<= main_a_x 151) (not (= main_x main_y))), 81929#(and (<= main_a_x 154) (not (= main_x main_y))), 81928#(and (not (= main_x main_y)) (<= main_a_x 153)), 81931#(and (<= main_a_x 156) (not (= main_x main_y))), 81930#(and (not (= main_x main_y)) (<= main_a_x 155)), 81933#(and (<= main_a_x 158) (not (= main_x main_y))), 81932#(and (<= main_a_x 157) (not (= main_x main_y))), 81935#(and (<= main_a_x 160) (not (= main_x main_y))), 81934#(and (<= main_a_x 159) (not (= main_x main_y))), 81937#(and (<= main_a_x 162) (not (= main_x main_y))), 81936#(and (not (= main_x main_y)) (<= main_a_x 161)), 81939#(and (not (= main_x main_y)) (<= main_a_x 164)), 81938#(and (not (= main_x main_y)) (<= main_a_x 163)), 81941#(and (<= main_a_x 166) (not (= main_x main_y))), 81940#(and (<= main_a_x 165) (not (= main_x main_y))), 81943#(and (<= main_a_x 168) (not (= main_x main_y))), 81942#(and (not (= main_x main_y)) (<= main_a_x 167)), 81945#(and (not (= main_x main_y)) (<= main_a_x 170)), 81944#(and (<= main_a_x 169) (not (= main_x main_y))), 81947#(and (not (= main_x main_y)) (<= main_a_x 172)), 81946#(and (<= main_a_x 171) (not (= main_x main_y))), 81949#(and (not (= main_x main_y)) (<= main_a_x 174)), 81948#(and (not (= main_x main_y)) (<= main_a_x 173)), 81951#(<= main_a_x 176), 81950#(and (not (= main_x main_y)) (<= main_a_x 175)), 81773#true, 81775#(and (not (= main_x main_y)) (<= main_a_x 0)), 81774#false, 81777#(and (not (= main_x main_y)) (<= main_a_x 2)), 81776#(and (not (= main_x main_y)) (<= main_a_x 1)), 81779#(and (<= main_a_x 4) (not (= main_x main_y))), 81778#(and (not (= main_x main_y)) (<= main_a_x 3)), 81781#(and (not (= main_x main_y)) (<= main_a_x 6)), 81780#(and (<= main_a_x 5) (not (= main_x main_y))), 81783#(and (not (= main_x main_y)) (<= main_a_x 8)), 81782#(and (<= main_a_x 7) (not (= main_x main_y))), 81785#(and (<= main_a_x 10) (not (= main_x main_y))), 81784#(and (not (= main_x main_y)) (<= main_a_x 9)), 81787#(and (not (= main_x main_y)) (<= main_a_x 12)), 81786#(and (not (= main_x main_y)) (<= main_a_x 11)), 81789#(and (not (= main_x main_y)) (<= main_a_x 14)), 81788#(and (<= main_a_x 13) (not (= main_x main_y))), 81791#(and (not (= main_x main_y)) (<= main_a_x 16)), 81790#(and (<= main_a_x 15) (not (= main_x main_y))), 81793#(and (<= main_a_x 18) (not (= main_x main_y))), 81792#(and (not (= main_x main_y)) (<= main_a_x 17)), 81795#(and (not (= main_x main_y)) (<= main_a_x 20)), 81794#(and (<= main_a_x 19) (not (= main_x main_y))), 81797#(and (not (= main_x main_y)) (<= main_a_x 22)), 81796#(and (not (= main_x main_y)) (<= main_a_x 21)), 81799#(and (not (= main_x main_y)) (<= main_a_x 24)), 81798#(and (<= main_a_x 23) (not (= main_x main_y))), 81801#(and (not (= main_x main_y)) (<= main_a_x 26)), 81800#(and (<= main_a_x 25) (not (= main_x main_y))), 81803#(and (not (= main_x main_y)) (<= main_a_x 28)), 81802#(and (not (= main_x main_y)) (<= main_a_x 27)), 81805#(and (<= main_a_x 30) (not (= main_x main_y))), 81804#(and (not (= main_x main_y)) (<= main_a_x 29)), 81807#(and (not (= main_x main_y)) (<= main_a_x 32)), 81806#(and (<= main_a_x 31) (not (= main_x main_y))), 81809#(and (not (= main_x main_y)) (<= main_a_x 34)), 81808#(and (not (= main_x main_y)) (<= main_a_x 33)), 81811#(and (not (= main_x main_y)) (<= main_a_x 36)), 81810#(and (<= main_a_x 35) (not (= main_x main_y))), 81813#(and (not (= main_x main_y)) (<= main_a_x 38)), 81812#(and (<= main_a_x 37) (not (= main_x main_y))), 81815#(and (<= main_a_x 40) (not (= main_x main_y))), 81814#(and (<= main_a_x 39) (not (= main_x main_y))), 81817#(and (not (= main_x main_y)) (<= main_a_x 42)), 81816#(and (not (= main_x main_y)) (<= main_a_x 41)), 81819#(and (<= main_a_x 44) (not (= main_x main_y))), 81818#(and (<= main_a_x 43) (not (= main_x main_y))), 81821#(and (<= main_a_x 46) (not (= main_x main_y))), 81820#(and (<= main_a_x 45) (not (= main_x main_y))), 81823#(and (<= main_a_x 48) (not (= main_x main_y))), 81822#(and (<= main_a_x 47) (not (= main_x main_y))), 81825#(and (not (= main_x main_y)) (<= main_a_x 50)), 81824#(and (not (= main_x main_y)) (<= main_a_x 49)), 81827#(and (not (= main_x main_y)) (<= main_a_x 52)), 81826#(and (<= main_a_x 51) (not (= main_x main_y))), 81829#(and (<= main_a_x 54) (not (= main_x main_y))), 81828#(and (<= main_a_x 53) (not (= main_x main_y))), 81831#(and (not (= main_x main_y)) (<= main_a_x 56)), 81830#(and (not (= main_x main_y)) (<= main_a_x 55)), 81833#(and (not (= main_x main_y)) (<= main_a_x 58)), 81832#(and (not (= main_x main_y)) (<= main_a_x 57)), 81835#(and (<= main_a_x 60) (not (= main_x main_y))), 81834#(and (not (= main_x main_y)) (<= main_a_x 59)), 81837#(and (not (= main_x main_y)) (<= main_a_x 62)), 81836#(and (not (= main_x main_y)) (<= main_a_x 61)), 81839#(and (<= main_a_x 64) (not (= main_x main_y))), 81838#(and (<= main_a_x 63) (not (= main_x main_y))), 81841#(and (<= main_a_x 66) (not (= main_x main_y))), 81840#(and (<= main_a_x 65) (not (= main_x main_y))), 81843#(and (not (= main_x main_y)) (<= main_a_x 68)), 81842#(and (<= main_a_x 67) (not (= main_x main_y))), 81845#(and (<= main_a_x 70) (not (= main_x main_y))), 81844#(and (<= main_a_x 69) (not (= main_x main_y))), 81847#(and (not (= main_x main_y)) (<= main_a_x 72)), 81846#(and (<= main_a_x 71) (not (= main_x main_y))), 81849#(and (<= main_a_x 74) (not (= main_x main_y))), 81848#(and (not (= main_x main_y)) (<= main_a_x 73)), 81851#(and (not (= main_x main_y)) (<= main_a_x 76)), 81850#(and (<= main_a_x 75) (not (= main_x main_y))), 81853#(and (<= main_a_x 78) (not (= main_x main_y))), 81852#(and (not (= main_x main_y)) (<= main_a_x 77)), 81855#(and (not (= main_x main_y)) (<= main_a_x 80)), 81854#(and (<= main_a_x 79) (not (= main_x main_y))), 81857#(and (not (= main_x main_y)) (<= main_a_x 82)), 81856#(and (not (= main_x main_y)) (<= main_a_x 81)), 81859#(and (<= main_a_x 84) (not (= main_x main_y))), 81858#(and (not (= main_x main_y)) (<= main_a_x 83)), 81861#(and (not (= main_x main_y)) (<= main_a_x 86)), 81860#(and (not (= main_x main_y)) (<= main_a_x 85)), 81863#(and (not (= main_x main_y)) (<= main_a_x 88)), 81862#(and (<= main_a_x 87) (not (= main_x main_y))), 81865#(and (not (= main_x main_y)) (<= main_a_x 90)), 81864#(and (<= main_a_x 89) (not (= main_x main_y))), 81867#(and (not (= main_x main_y)) (<= main_a_x 92)), 81866#(and (<= main_a_x 91) (not (= main_x main_y))), 81869#(and (<= main_a_x 94) (not (= main_x main_y))), 81868#(and (not (= main_x main_y)) (<= main_a_x 93)), 81871#(and (not (= main_x main_y)) (<= main_a_x 96)), 81870#(and (<= main_a_x 95) (not (= main_x main_y))), 81873#(and (not (= main_x main_y)) (<= main_a_x 98)), 81872#(and (<= main_a_x 97) (not (= main_x main_y))), 81875#(and (<= main_a_x 100) (not (= main_x main_y))), 81874#(and (<= main_a_x 99) (not (= main_x main_y))), 81877#(and (not (= main_x main_y)) (<= main_a_x 102)), 81876#(and (not (= main_x main_y)) (<= main_a_x 101)), 81879#(and (<= main_a_x 104) (not (= main_x main_y))), 81878#(and (not (= main_x main_y)) (<= main_a_x 103)), 81881#(and (not (= main_x main_y)) (<= main_a_x 106)), 81880#(and (<= main_a_x 105) (not (= main_x main_y))), 81883#(and (not (= main_x main_y)) (<= main_a_x 108)), 81882#(and (not (= main_x main_y)) (<= main_a_x 107)), 81885#(and (<= main_a_x 110) (not (= main_x main_y))), 81884#(and (not (= main_x main_y)) (<= main_a_x 109)), 81887#(and (<= main_a_x 112) (not (= main_x main_y))), 81886#(and (not (= main_x main_y)) (<= main_a_x 111)), 81889#(and (not (= main_x main_y)) (<= main_a_x 114)), 81888#(and (<= main_a_x 113) (not (= main_x main_y))), 81891#(and (not (= main_x main_y)) (<= main_a_x 116)), 81890#(and (not (= main_x main_y)) (<= main_a_x 115)), 81893#(and (not (= main_x main_y)) (<= main_a_x 118)), 81892#(and (<= main_a_x 117) (not (= main_x main_y))), 81895#(and (not (= main_x main_y)) (<= main_a_x 120)), 81894#(and (not (= main_x main_y)) (<= main_a_x 119)), 81897#(and (not (= main_x main_y)) (<= main_a_x 122)), 81896#(and (not (= main_x main_y)) (<= main_a_x 121)), 81899#(and (not (= main_x main_y)) (<= main_a_x 124)), 81898#(and (<= main_a_x 123) (not (= main_x main_y))), 81901#(and (not (= main_x main_y)) (<= main_a_x 126)), 81900#(and (not (= main_x main_y)) (<= main_a_x 125)), 81903#(and (<= main_a_x 128) (not (= main_x main_y))), 81902#(and (not (= main_x main_y)) (<= main_a_x 127)), 81905#(and (not (= main_x main_y)) (<= main_a_x 130)), 81904#(and (<= main_a_x 129) (not (= main_x main_y))), 81907#(and (not (= main_x main_y)) (<= main_a_x 132)), 81906#(and (not (= main_x main_y)) (<= main_a_x 131)), 81909#(and (not (= main_x main_y)) (<= main_a_x 134)), 81908#(and (not (= main_x main_y)) (<= main_a_x 133)), 81911#(and (<= main_a_x 136) (not (= main_x main_y))), 81910#(and (<= main_a_x 135) (not (= main_x main_y))), 81913#(and (not (= main_x main_y)) (<= main_a_x 138)), 81912#(and (not (= main_x main_y)) (<= main_a_x 137)), 81915#(and (<= main_a_x 140) (not (= main_x main_y))), 81914#(and (not (= main_x main_y)) (<= main_a_x 139)), 81917#(and (not (= main_x main_y)) (<= main_a_x 142)), 81916#(and (<= main_a_x 141) (not (= main_x main_y))), 81919#(and (<= main_a_x 144) (not (= main_x main_y))), 81918#(and (<= main_a_x 143) (not (= main_x main_y)))] [2018-07-23 13:56:00,693 INFO L134 CoverageAnalysis]: Checked inductivity of 15576 backedges. 0 proven. 15576 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:00,693 INFO L450 AbstractCegarLoop]: Interpolant automaton has 179 states [2018-07-23 13:56:00,695 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 179 interpolants. [2018-07-23 13:56:00,695 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15931, Invalid=15931, Unknown=0, NotChecked=0, Total=31862 [2018-07-23 13:56:00,695 INFO L87 Difference]: Start difference. First operand 180 states and 180 transitions. Second operand 179 states. [2018-07-23 13:56:01,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:56:01,097 INFO L93 Difference]: Finished difference Result 183 states and 183 transitions. [2018-07-23 13:56:01,098 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 179 states. [2018-07-23 13:56:01,098 INFO L78 Accepts]: Start accepts. Automaton has 179 states. Word has length 179 [2018-07-23 13:56:01,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:56:01,098 INFO L225 Difference]: With dead ends: 183 [2018-07-23 13:56:01,098 INFO L226 Difference]: Without dead ends: 181 [2018-07-23 13:56:01,099 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 177 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=15931, Invalid=15931, Unknown=0, NotChecked=0, Total=31862 [2018-07-23 13:56:01,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2018-07-23 13:56:01,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2018-07-23 13:56:01,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2018-07-23 13:56:01,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 181 transitions. [2018-07-23 13:56:01,105 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 181 transitions. Word has length 179 [2018-07-23 13:56:01,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:56:01,105 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 181 transitions. [2018-07-23 13:56:01,105 INFO L472 AbstractCegarLoop]: Interpolant automaton has 179 states. [2018-07-23 13:56:01,105 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 181 transitions. [2018-07-23 13:56:01,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2018-07-23 13:56:01,105 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:56:01,105 INFO L357 BasicCegarLoop]: trace histogram [177, 1, 1, 1] [2018-07-23 13:56:01,106 INFO L414 AbstractCegarLoop]: === Iteration 178 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:56:01,106 INFO L82 PathProgramCache]: Analyzing trace with hash -1658369305, now seen corresponding path program 177 times [2018-07-23 13:56:01,106 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:56:02,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:56:04,775 INFO L134 CoverageAnalysis]: Checked inductivity of 15753 backedges. 0 proven. 15753 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:04,775 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:56:04,776 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [179] total 179 [2018-07-23 13:56:04,776 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:56:04,776 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 13:56:04,776 INFO L185 omatonBuilderFactory]: Interpolants [82689#(and (<= main_a_x 7) (not (= main_x main_y))), 82688#(and (not (= main_x main_y)) (<= main_a_x 6)), 82691#(and (not (= main_x main_y)) (<= main_a_x 9)), 82690#(and (not (= main_x main_y)) (<= main_a_x 8)), 82693#(and (not (= main_x main_y)) (<= main_a_x 11)), 82692#(and (<= main_a_x 10) (not (= main_x main_y))), 82695#(and (<= main_a_x 13) (not (= main_x main_y))), 82694#(and (not (= main_x main_y)) (<= main_a_x 12)), 82697#(and (<= main_a_x 15) (not (= main_x main_y))), 82696#(and (not (= main_x main_y)) (<= main_a_x 14)), 82699#(and (not (= main_x main_y)) (<= main_a_x 17)), 82698#(and (not (= main_x main_y)) (<= main_a_x 16)), 82701#(and (<= main_a_x 19) (not (= main_x main_y))), 82700#(and (<= main_a_x 18) (not (= main_x main_y))), 82703#(and (not (= main_x main_y)) (<= main_a_x 21)), 82702#(and (not (= main_x main_y)) (<= main_a_x 20)), 82705#(and (<= main_a_x 23) (not (= main_x main_y))), 82704#(and (not (= main_x main_y)) (<= main_a_x 22)), 82707#(and (<= main_a_x 25) (not (= main_x main_y))), 82706#(and (not (= main_x main_y)) (<= main_a_x 24)), 82709#(and (not (= main_x main_y)) (<= main_a_x 27)), 82708#(and (not (= main_x main_y)) (<= main_a_x 26)), 82711#(and (not (= main_x main_y)) (<= main_a_x 29)), 82710#(and (not (= main_x main_y)) (<= main_a_x 28)), 82713#(and (<= main_a_x 31) (not (= main_x main_y))), 82712#(and (<= main_a_x 30) (not (= main_x main_y))), 82715#(and (not (= main_x main_y)) (<= main_a_x 33)), 82714#(and (not (= main_x main_y)) (<= main_a_x 32)), 82717#(and (<= main_a_x 35) (not (= main_x main_y))), 82716#(and (not (= main_x main_y)) (<= main_a_x 34)), 82719#(and (<= main_a_x 37) (not (= main_x main_y))), 82718#(and (not (= main_x main_y)) (<= main_a_x 36)), 82721#(and (<= main_a_x 39) (not (= main_x main_y))), 82720#(and (not (= main_x main_y)) (<= main_a_x 38)), 82723#(and (not (= main_x main_y)) (<= main_a_x 41)), 82722#(and (<= main_a_x 40) (not (= main_x main_y))), 82725#(and (<= main_a_x 43) (not (= main_x main_y))), 82724#(and (not (= main_x main_y)) (<= main_a_x 42)), 82727#(and (<= main_a_x 45) (not (= main_x main_y))), 82726#(and (<= main_a_x 44) (not (= main_x main_y))), 82729#(and (<= main_a_x 47) (not (= main_x main_y))), 82728#(and (<= main_a_x 46) (not (= main_x main_y))), 82731#(and (not (= main_x main_y)) (<= main_a_x 49)), 82730#(and (<= main_a_x 48) (not (= main_x main_y))), 82733#(and (<= main_a_x 51) (not (= main_x main_y))), 82732#(and (not (= main_x main_y)) (<= main_a_x 50)), 82735#(and (<= main_a_x 53) (not (= main_x main_y))), 82734#(and (not (= main_x main_y)) (<= main_a_x 52)), 82737#(and (not (= main_x main_y)) (<= main_a_x 55)), 82736#(and (<= main_a_x 54) (not (= main_x main_y))), 82739#(and (not (= main_x main_y)) (<= main_a_x 57)), 82738#(and (not (= main_x main_y)) (<= main_a_x 56)), 82741#(and (not (= main_x main_y)) (<= main_a_x 59)), 82740#(and (not (= main_x main_y)) (<= main_a_x 58)), 82743#(and (not (= main_x main_y)) (<= main_a_x 61)), 82742#(and (<= main_a_x 60) (not (= main_x main_y))), 82745#(and (<= main_a_x 63) (not (= main_x main_y))), 82744#(and (not (= main_x main_y)) (<= main_a_x 62)), 82747#(and (<= main_a_x 65) (not (= main_x main_y))), 82746#(and (<= main_a_x 64) (not (= main_x main_y))), 82749#(and (<= main_a_x 67) (not (= main_x main_y))), 82748#(and (<= main_a_x 66) (not (= main_x main_y))), 82751#(and (<= main_a_x 69) (not (= main_x main_y))), 82750#(and (not (= main_x main_y)) (<= main_a_x 68)), 82753#(and (<= main_a_x 71) (not (= main_x main_y))), 82752#(and (<= main_a_x 70) (not (= main_x main_y))), 82755#(and (not (= main_x main_y)) (<= main_a_x 73)), 82754#(and (not (= main_x main_y)) (<= main_a_x 72)), 82757#(and (<= main_a_x 75) (not (= main_x main_y))), 82756#(and (<= main_a_x 74) (not (= main_x main_y))), 82759#(and (not (= main_x main_y)) (<= main_a_x 77)), 82758#(and (not (= main_x main_y)) (<= main_a_x 76)), 82761#(and (<= main_a_x 79) (not (= main_x main_y))), 82760#(and (<= main_a_x 78) (not (= main_x main_y))), 82763#(and (not (= main_x main_y)) (<= main_a_x 81)), 82762#(and (not (= main_x main_y)) (<= main_a_x 80)), 82765#(and (not (= main_x main_y)) (<= main_a_x 83)), 82764#(and (not (= main_x main_y)) (<= main_a_x 82)), 82767#(and (not (= main_x main_y)) (<= main_a_x 85)), 82766#(and (<= main_a_x 84) (not (= main_x main_y))), 82769#(and (<= main_a_x 87) (not (= main_x main_y))), 82768#(and (not (= main_x main_y)) (<= main_a_x 86)), 82771#(and (<= main_a_x 89) (not (= main_x main_y))), 82770#(and (not (= main_x main_y)) (<= main_a_x 88)), 82773#(and (<= main_a_x 91) (not (= main_x main_y))), 82772#(and (not (= main_x main_y)) (<= main_a_x 90)), 82775#(and (not (= main_x main_y)) (<= main_a_x 93)), 82774#(and (not (= main_x main_y)) (<= main_a_x 92)), 82777#(and (<= main_a_x 95) (not (= main_x main_y))), 82776#(and (<= main_a_x 94) (not (= main_x main_y))), 82779#(and (<= main_a_x 97) (not (= main_x main_y))), 82778#(and (not (= main_x main_y)) (<= main_a_x 96)), 82781#(and (<= main_a_x 99) (not (= main_x main_y))), 82780#(and (not (= main_x main_y)) (<= main_a_x 98)), 82783#(and (not (= main_x main_y)) (<= main_a_x 101)), 82782#(and (<= main_a_x 100) (not (= main_x main_y))), 82785#(and (not (= main_x main_y)) (<= main_a_x 103)), 82784#(and (not (= main_x main_y)) (<= main_a_x 102)), 82787#(and (<= main_a_x 105) (not (= main_x main_y))), 82786#(and (<= main_a_x 104) (not (= main_x main_y))), 82789#(and (not (= main_x main_y)) (<= main_a_x 107)), 82788#(and (not (= main_x main_y)) (<= main_a_x 106)), 82791#(and (not (= main_x main_y)) (<= main_a_x 109)), 82790#(and (not (= main_x main_y)) (<= main_a_x 108)), 82793#(and (not (= main_x main_y)) (<= main_a_x 111)), 82792#(and (<= main_a_x 110) (not (= main_x main_y))), 82795#(and (<= main_a_x 113) (not (= main_x main_y))), 82794#(and (<= main_a_x 112) (not (= main_x main_y))), 82797#(and (not (= main_x main_y)) (<= main_a_x 115)), 82796#(and (not (= main_x main_y)) (<= main_a_x 114)), 82799#(and (<= main_a_x 117) (not (= main_x main_y))), 82798#(and (not (= main_x main_y)) (<= main_a_x 116)), 82801#(and (not (= main_x main_y)) (<= main_a_x 119)), 82800#(and (not (= main_x main_y)) (<= main_a_x 118)), 82803#(and (not (= main_x main_y)) (<= main_a_x 121)), 82802#(and (not (= main_x main_y)) (<= main_a_x 120)), 82805#(and (<= main_a_x 123) (not (= main_x main_y))), 82804#(and (not (= main_x main_y)) (<= main_a_x 122)), 82807#(and (not (= main_x main_y)) (<= main_a_x 125)), 82806#(and (not (= main_x main_y)) (<= main_a_x 124)), 82809#(and (not (= main_x main_y)) (<= main_a_x 127)), 82808#(and (not (= main_x main_y)) (<= main_a_x 126)), 82811#(and (<= main_a_x 129) (not (= main_x main_y))), 82810#(and (<= main_a_x 128) (not (= main_x main_y))), 82813#(and (not (= main_x main_y)) (<= main_a_x 131)), 82812#(and (not (= main_x main_y)) (<= main_a_x 130)), 82815#(and (not (= main_x main_y)) (<= main_a_x 133)), 82814#(and (not (= main_x main_y)) (<= main_a_x 132)), 82817#(and (<= main_a_x 135) (not (= main_x main_y))), 82816#(and (not (= main_x main_y)) (<= main_a_x 134)), 82819#(and (not (= main_x main_y)) (<= main_a_x 137)), 82818#(and (<= main_a_x 136) (not (= main_x main_y))), 82821#(and (not (= main_x main_y)) (<= main_a_x 139)), 82820#(and (not (= main_x main_y)) (<= main_a_x 138)), 82823#(and (<= main_a_x 141) (not (= main_x main_y))), 82822#(and (<= main_a_x 140) (not (= main_x main_y))), 82825#(and (<= main_a_x 143) (not (= main_x main_y))), 82824#(and (not (= main_x main_y)) (<= main_a_x 142)), 82827#(and (not (= main_x main_y)) (<= main_a_x 145)), 82826#(and (<= main_a_x 144) (not (= main_x main_y))), 82829#(and (not (= main_x main_y)) (<= main_a_x 147)), 82828#(and (<= main_a_x 146) (not (= main_x main_y))), 82831#(and (not (= main_x main_y)) (<= main_a_x 149)), 82830#(and (<= main_a_x 148) (not (= main_x main_y))), 82833#(and (<= main_a_x 151) (not (= main_x main_y))), 82832#(and (not (= main_x main_y)) (<= main_a_x 150)), 82835#(and (not (= main_x main_y)) (<= main_a_x 153)), 82834#(and (not (= main_x main_y)) (<= main_a_x 152)), 82837#(and (not (= main_x main_y)) (<= main_a_x 155)), 82836#(and (<= main_a_x 154) (not (= main_x main_y))), 82839#(and (<= main_a_x 157) (not (= main_x main_y))), 82838#(and (<= main_a_x 156) (not (= main_x main_y))), 82841#(and (<= main_a_x 159) (not (= main_x main_y))), 82840#(and (<= main_a_x 158) (not (= main_x main_y))), 82843#(and (not (= main_x main_y)) (<= main_a_x 161)), 82842#(and (<= main_a_x 160) (not (= main_x main_y))), 82845#(and (not (= main_x main_y)) (<= main_a_x 163)), 82844#(and (<= main_a_x 162) (not (= main_x main_y))), 82847#(and (<= main_a_x 165) (not (= main_x main_y))), 82846#(and (not (= main_x main_y)) (<= main_a_x 164)), 82849#(and (not (= main_x main_y)) (<= main_a_x 167)), 82848#(and (<= main_a_x 166) (not (= main_x main_y))), 82851#(and (<= main_a_x 169) (not (= main_x main_y))), 82850#(and (<= main_a_x 168) (not (= main_x main_y))), 82853#(and (<= main_a_x 171) (not (= main_x main_y))), 82852#(and (not (= main_x main_y)) (<= main_a_x 170)), 82855#(and (not (= main_x main_y)) (<= main_a_x 173)), 82854#(and (not (= main_x main_y)) (<= main_a_x 172)), 82857#(and (not (= main_x main_y)) (<= main_a_x 175)), 82856#(and (not (= main_x main_y)) (<= main_a_x 174)), 82859#(<= main_a_x 177), 82858#(and (not (= main_x main_y)) (<= main_a_x 176)), 82681#false, 82680#true, 82683#(and (not (= main_x main_y)) (<= main_a_x 1)), 82682#(and (not (= main_x main_y)) (<= main_a_x 0)), 82685#(and (not (= main_x main_y)) (<= main_a_x 3)), 82684#(and (not (= main_x main_y)) (<= main_a_x 2)), 82687#(and (<= main_a_x 5) (not (= main_x main_y))), 82686#(and (<= main_a_x 4) (not (= main_x main_y)))] [2018-07-23 13:56:04,777 INFO L134 CoverageAnalysis]: Checked inductivity of 15753 backedges. 0 proven. 15753 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:04,777 INFO L450 AbstractCegarLoop]: Interpolant automaton has 180 states [2018-07-23 13:56:04,778 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 180 interpolants. [2018-07-23 13:56:04,779 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16110, Invalid=16110, Unknown=0, NotChecked=0, Total=32220 [2018-07-23 13:56:04,779 INFO L87 Difference]: Start difference. First operand 181 states and 181 transitions. Second operand 180 states. [2018-07-23 13:56:05,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:56:05,501 INFO L93 Difference]: Finished difference Result 184 states and 184 transitions. [2018-07-23 13:56:05,501 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 180 states. [2018-07-23 13:56:05,501 INFO L78 Accepts]: Start accepts. Automaton has 180 states. Word has length 180 [2018-07-23 13:56:05,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:56:05,502 INFO L225 Difference]: With dead ends: 184 [2018-07-23 13:56:05,502 INFO L226 Difference]: Without dead ends: 182 [2018-07-23 13:56:05,503 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=16110, Invalid=16110, Unknown=0, NotChecked=0, Total=32220 [2018-07-23 13:56:05,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2018-07-23 13:56:05,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2018-07-23 13:56:05,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2018-07-23 13:56:05,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 182 transitions. [2018-07-23 13:56:05,509 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 182 transitions. Word has length 180 [2018-07-23 13:56:05,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:56:05,509 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 182 transitions. [2018-07-23 13:56:05,509 INFO L472 AbstractCegarLoop]: Interpolant automaton has 180 states. [2018-07-23 13:56:05,509 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 182 transitions. [2018-07-23 13:56:05,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2018-07-23 13:56:05,509 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:56:05,510 INFO L357 BasicCegarLoop]: trace histogram [178, 1, 1, 1] [2018-07-23 13:56:05,510 INFO L414 AbstractCegarLoop]: === Iteration 179 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:56:05,510 INFO L82 PathProgramCache]: Analyzing trace with hash 130174476, now seen corresponding path program 178 times [2018-07-23 13:56:05,510 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:56:06,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:56:09,290 INFO L134 CoverageAnalysis]: Checked inductivity of 15931 backedges. 0 proven. 15931 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:09,291 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:56:09,291 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [180] total 180 [2018-07-23 13:56:09,291 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:56:09,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:09,292 INFO L185 omatonBuilderFactory]: Interpolants [83713#(and (not (= main_x main_y)) (<= main_a_x 119)), 83712#(and (not (= main_x main_y)) (<= main_a_x 118)), 83715#(and (not (= main_x main_y)) (<= main_a_x 121)), 83714#(and (not (= main_x main_y)) (<= main_a_x 120)), 83717#(and (<= main_a_x 123) (not (= main_x main_y))), 83716#(and (not (= main_x main_y)) (<= main_a_x 122)), 83719#(and (not (= main_x main_y)) (<= main_a_x 125)), 83718#(and (not (= main_x main_y)) (<= main_a_x 124)), 83721#(and (not (= main_x main_y)) (<= main_a_x 127)), 83720#(and (not (= main_x main_y)) (<= main_a_x 126)), 83723#(and (<= main_a_x 129) (not (= main_x main_y))), 83722#(and (<= main_a_x 128) (not (= main_x main_y))), 83725#(and (not (= main_x main_y)) (<= main_a_x 131)), 83724#(and (not (= main_x main_y)) (<= main_a_x 130)), 83727#(and (not (= main_x main_y)) (<= main_a_x 133)), 83726#(and (not (= main_x main_y)) (<= main_a_x 132)), 83729#(and (<= main_a_x 135) (not (= main_x main_y))), 83728#(and (not (= main_x main_y)) (<= main_a_x 134)), 83731#(and (not (= main_x main_y)) (<= main_a_x 137)), 83730#(and (<= main_a_x 136) (not (= main_x main_y))), 83733#(and (not (= main_x main_y)) (<= main_a_x 139)), 83732#(and (not (= main_x main_y)) (<= main_a_x 138)), 83735#(and (<= main_a_x 141) (not (= main_x main_y))), 83734#(and (<= main_a_x 140) (not (= main_x main_y))), 83737#(and (<= main_a_x 143) (not (= main_x main_y))), 83736#(and (not (= main_x main_y)) (<= main_a_x 142)), 83739#(and (not (= main_x main_y)) (<= main_a_x 145)), 83738#(and (<= main_a_x 144) (not (= main_x main_y))), 83741#(and (not (= main_x main_y)) (<= main_a_x 147)), 83740#(and (<= main_a_x 146) (not (= main_x main_y))), 83743#(and (not (= main_x main_y)) (<= main_a_x 149)), 83742#(and (<= main_a_x 148) (not (= main_x main_y))), 83745#(and (<= main_a_x 151) (not (= main_x main_y))), 83744#(and (not (= main_x main_y)) (<= main_a_x 150)), 83747#(and (not (= main_x main_y)) (<= main_a_x 153)), 83746#(and (not (= main_x main_y)) (<= main_a_x 152)), 83749#(and (not (= main_x main_y)) (<= main_a_x 155)), 83748#(and (<= main_a_x 154) (not (= main_x main_y))), 83751#(and (<= main_a_x 157) (not (= main_x main_y))), 83750#(and (<= main_a_x 156) (not (= main_x main_y))), 83753#(and (<= main_a_x 159) (not (= main_x main_y))), 83752#(and (<= main_a_x 158) (not (= main_x main_y))), 83755#(and (not (= main_x main_y)) (<= main_a_x 161)), 83754#(and (<= main_a_x 160) (not (= main_x main_y))), 83757#(and (not (= main_x main_y)) (<= main_a_x 163)), 83756#(and (<= main_a_x 162) (not (= main_x main_y))), 83759#(and (<= main_a_x 165) (not (= main_x main_y))), 83758#(and (not (= main_x main_y)) (<= main_a_x 164)), 83761#(and (not (= main_x main_y)) (<= main_a_x 167)), 83760#(and (<= main_a_x 166) (not (= main_x main_y))), 83763#(and (<= main_a_x 169) (not (= main_x main_y))), 83762#(and (<= main_a_x 168) (not (= main_x main_y))), 83765#(and (<= main_a_x 171) (not (= main_x main_y))), 83764#(and 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main_a_x 11)), 83604#(and (<= main_a_x 10) (not (= main_x main_y))), 83607#(and (<= main_a_x 13) (not (= main_x main_y))), 83606#(and (not (= main_x main_y)) (<= main_a_x 12)), 83609#(and (<= main_a_x 15) (not (= main_x main_y))), 83608#(and (not (= main_x main_y)) (<= main_a_x 14)), 83611#(and (not (= main_x main_y)) (<= main_a_x 17)), 83610#(and (not (= main_x main_y)) (<= main_a_x 16)), 83613#(and (<= main_a_x 19) (not (= main_x main_y))), 83612#(and (<= main_a_x 18) (not (= main_x main_y))), 83615#(and (not (= main_x main_y)) (<= main_a_x 21)), 83614#(and (not (= main_x main_y)) (<= main_a_x 20)), 83617#(and (<= main_a_x 23) (not (= main_x main_y))), 83616#(and (not (= main_x main_y)) (<= main_a_x 22)), 83619#(and (<= main_a_x 25) (not (= main_x main_y))), 83618#(and (not (= main_x main_y)) (<= main_a_x 24)), 83621#(and (not (= main_x main_y)) (<= main_a_x 27)), 83620#(and (not (= main_x main_y)) (<= main_a_x 26)), 83623#(and (not (= main_x main_y)) (<= main_a_x 29)), 83622#(and (not (= main_x main_y)) (<= main_a_x 28)), 83625#(and (<= main_a_x 31) (not (= main_x main_y))), 83624#(and (<= main_a_x 30) (not (= main_x main_y))), 83627#(and (not (= main_x main_y)) (<= main_a_x 33)), 83626#(and (not (= main_x main_y)) (<= main_a_x 32)), 83629#(and (<= main_a_x 35) (not (= main_x main_y))), 83628#(and (not (= main_x main_y)) (<= main_a_x 34)), 83631#(and (<= main_a_x 37) (not (= main_x main_y))), 83630#(and (not (= main_x main_y)) (<= main_a_x 36)), 83633#(and (<= main_a_x 39) (not (= main_x main_y))), 83632#(and (not (= main_x main_y)) (<= main_a_x 38)), 83635#(and (not (= main_x main_y)) (<= main_a_x 41)), 83634#(and (<= main_a_x 40) (not (= main_x main_y))), 83637#(and (<= main_a_x 43) (not (= main_x main_y))), 83636#(and (not (= main_x main_y)) (<= main_a_x 42)), 83639#(and (<= main_a_x 45) (not (= main_x main_y))), 83638#(and (<= main_a_x 44) (not (= main_x main_y))), 83641#(and (<= main_a_x 47) (not (= main_x main_y))), 83640#(and (<= main_a_x 46) (not (= main_x main_y))), 83643#(and (not (= main_x main_y)) (<= main_a_x 49)), 83642#(and (<= main_a_x 48) (not (= main_x main_y))), 83645#(and (<= main_a_x 51) (not (= main_x main_y))), 83644#(and (not (= main_x main_y)) (<= main_a_x 50)), 83647#(and (<= main_a_x 53) (not (= main_x main_y))), 83646#(and (not (= main_x main_y)) (<= main_a_x 52)), 83649#(and (not (= main_x main_y)) (<= main_a_x 55)), 83648#(and (<= main_a_x 54) (not (= main_x main_y))), 83651#(and (not (= main_x main_y)) (<= main_a_x 57)), 83650#(and (not (= main_x main_y)) (<= main_a_x 56)), 83653#(and (not (= main_x main_y)) (<= main_a_x 59)), 83652#(and (not (= main_x main_y)) (<= main_a_x 58)), 83655#(and (not (= main_x main_y)) (<= main_a_x 61)), 83654#(and (<= main_a_x 60) (not (= main_x main_y))), 83657#(and (<= main_a_x 63) (not (= main_x main_y))), 83656#(and (not (= main_x main_y)) (<= main_a_x 62)), 83659#(and (<= main_a_x 65) (not (= main_x main_y))), 83658#(and (<= main_a_x 64) (not (= main_x main_y))), 83661#(and (<= main_a_x 67) (not (= main_x main_y))), 83660#(and (<= main_a_x 66) (not (= main_x main_y))), 83663#(and (<= main_a_x 69) (not (= main_x main_y))), 83662#(and (not (= main_x main_y)) (<= main_a_x 68)), 83665#(and (<= main_a_x 71) (not (= main_x main_y))), 83664#(and (<= main_a_x 70) (not (= main_x main_y))), 83667#(and (not (= main_x main_y)) (<= main_a_x 73)), 83666#(and (not (= main_x main_y)) (<= main_a_x 72)), 83669#(and (<= main_a_x 75) (not (= main_x main_y))), 83668#(and (<= main_a_x 74) (not (= main_x main_y))), 83671#(and (not (= main_x main_y)) (<= main_a_x 77)), 83670#(and (not (= main_x main_y)) (<= main_a_x 76)), 83673#(and (<= main_a_x 79) (not (= main_x main_y))), 83672#(and (<= main_a_x 78) (not (= main_x main_y))), 83675#(and (not (= main_x main_y)) (<= main_a_x 81)), 83674#(and (not (= main_x main_y)) (<= main_a_x 80)), 83677#(and (not (= main_x main_y)) (<= main_a_x 83)), 83676#(and (not (= main_x main_y)) (<= main_a_x 82)), 83679#(and (not (= main_x main_y)) (<= main_a_x 85)), 83678#(and (<= main_a_x 84) (not (= main_x main_y))), 83681#(and (<= main_a_x 87) (not (= main_x main_y))), 83680#(and (not (= main_x main_y)) (<= main_a_x 86)), 83683#(and (<= main_a_x 89) (not (= main_x main_y))), 83682#(and (not (= main_x main_y)) (<= main_a_x 88)), 83685#(and (<= main_a_x 91) (not (= main_x main_y))), 83684#(and (not (= main_x main_y)) (<= main_a_x 90)), 83687#(and (not (= main_x main_y)) (<= main_a_x 93)), 83686#(and (not (= main_x main_y)) (<= main_a_x 92)), 83689#(and (<= main_a_x 95) (not (= main_x main_y))), 83688#(and (<= main_a_x 94) (not (= main_x main_y))), 83691#(and (<= main_a_x 97) (not (= main_x main_y))), 83690#(and (not (= main_x main_y)) (<= main_a_x 96)), 83693#(and (<= main_a_x 99) (not (= main_x main_y))), 83692#(and (not (= main_x main_y)) (<= main_a_x 98)), 83695#(and (not (= main_x main_y)) (<= main_a_x 101)), 83694#(and (<= main_a_x 100) (not (= main_x main_y))), 83697#(and (not (= main_x main_y)) (<= main_a_x 103)), 83696#(and (not (= main_x main_y)) (<= main_a_x 102)), 83699#(and (<= main_a_x 105) (not (= main_x main_y))), 83698#(and (<= main_a_x 104) (not (= main_x main_y))), 83701#(and (not (= main_x main_y)) (<= main_a_x 107)), 83700#(and (not (= main_x main_y)) (<= main_a_x 106)), 83703#(and (not (= main_x main_y)) (<= main_a_x 109)), 83702#(and (not (= main_x main_y)) (<= main_a_x 108)), 83705#(and (not (= main_x main_y)) (<= main_a_x 111)), 83704#(and (<= main_a_x 110) (not (= main_x main_y))), 83707#(and (<= main_a_x 113) (not (= main_x main_y))), 83706#(and (<= main_a_x 112) (not (= main_x main_y))), 83709#(and (not (= main_x main_y)) (<= main_a_x 115)), 83708#(and (not (= main_x main_y)) (<= main_a_x 114)), 83711#(and (<= main_a_x 117) (not (= main_x main_y))), 83710#(and (not (= main_x main_y)) (<= main_a_x 116))] [2018-07-23 13:56:09,293 INFO L134 CoverageAnalysis]: Checked inductivity of 15931 backedges. 0 proven. 15931 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:09,293 INFO L450 AbstractCegarLoop]: Interpolant automaton has 181 states [2018-07-23 13:56:09,294 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 181 interpolants. [2018-07-23 13:56:09,295 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16290, Invalid=16290, Unknown=0, NotChecked=0, Total=32580 [2018-07-23 13:56:09,295 INFO L87 Difference]: Start difference. First operand 182 states and 182 transitions. Second operand 181 states. [2018-07-23 13:56:09,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:56:09,539 INFO L93 Difference]: Finished difference Result 185 states and 185 transitions. [2018-07-23 13:56:09,539 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 181 states. [2018-07-23 13:56:09,539 INFO L78 Accepts]: Start accepts. Automaton has 181 states. Word has length 181 [2018-07-23 13:56:09,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:56:09,540 INFO L225 Difference]: With dead ends: 185 [2018-07-23 13:56:09,540 INFO L226 Difference]: Without dead ends: 183 [2018-07-23 13:56:09,541 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 179 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=16290, Invalid=16290, Unknown=0, NotChecked=0, Total=32580 [2018-07-23 13:56:09,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2018-07-23 13:56:09,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2018-07-23 13:56:09,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2018-07-23 13:56:09,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 183 transitions. [2018-07-23 13:56:09,545 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 183 transitions. Word has length 181 [2018-07-23 13:56:09,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:56:09,546 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 183 transitions. [2018-07-23 13:56:09,546 INFO L472 AbstractCegarLoop]: Interpolant automaton has 181 states. [2018-07-23 13:56:09,546 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 183 transitions. [2018-07-23 13:56:09,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2018-07-23 13:56:09,546 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:56:09,546 INFO L357 BasicCegarLoop]: trace histogram [179, 1, 1, 1] [2018-07-23 13:56:09,546 INFO L414 AbstractCegarLoop]: === Iteration 180 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:56:09,547 INFO L82 PathProgramCache]: Analyzing trace with hash -259543161, now seen corresponding path program 179 times [2018-07-23 13:56:09,547 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:56:10,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2018-07-23 13:56:11,063 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-23 13:56:11,069 WARN L202 ceAbstractionStarter]: Timeout [2018-07-23 13:56:11,069 INFO L202 PluginConnector]: Adding new model Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 01:56:11 BoogieIcfgContainer [2018-07-23 13:56:11,069 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 13:56:11,070 INFO L168 Benchmark]: Toolchain (without parser) took 256484.36 ms. Allocated memory was 1.5 GB in the beginning and 3.5 GB in the end (delta: 1.9 GB). Free memory was 1.5 GB in the beginning and 2.1 GB in the end (delta: -621.7 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-07-23 13:56:11,072 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 13:56:11,073 INFO L168 Benchmark]: Boogie Preprocessor took 56.05 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 13:56:11,073 INFO L168 Benchmark]: RCFGBuilder took 332.78 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-07-23 13:56:11,073 INFO L168 Benchmark]: TraceAbstraction took 256090.53 ms. Allocated memory was 1.5 GB in the beginning and 3.5 GB in the end (delta: 1.9 GB). Free memory was 1.5 GB in the beginning and 2.1 GB in the end (delta: -632.2 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-07-23 13:56:11,076 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 56.05 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 332.78 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 256090.53 ms. Allocated memory was 1.5 GB in the beginning and 3.5 GB in the end (delta: 1.9 GB). Free memory was 1.5 GB in the beginning and 2.1 GB in the end (delta: -632.2 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 41]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 41). Cancelled while BasicCegarLoop was analyzing trace of length 183 with TraceHistMax 179, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateComparison was comparing new predicate (quantifier-free) to 44 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. TIMEOUT Result, 256.0s OverallTime, 180 OverallIterations, 179 TraceHistogramMax, 26.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 539 SDtfs, 2 SDslu, 10274 SDs, 0 SdLazy, 26562 SolverSat, 298 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16289 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 16110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 159.6s Time, 0.2s BasicInterpolantAutomatonTime, BiggestAbstraction: size=183occurred in iteration=179, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/955860 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 179 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 50.0s SatisfiabilityAnalysisTime, 172.4s InterpolantComputationTime, 16468 NumberOfCodeBlocks, 16468 NumberOfCodeBlocksAsserted, 179 NumberOfCheckSat, 16289 ConstructedInterpolants, 0 QuantifiedInterpolants, 15486366 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 179 InterpolantComputations, 1 PerfectInterpolantSequences, 0/955860 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-ArraysIntegefied.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-07-23_13-56-11-091.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Luxembourg-ArraysIntegefied.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_13-56-11-091.csv Completed graceful shutdown