MAYBE Time: 0.067913 TRS: { cons(mark X1, X2) -> mark cons(X1, X2), cons(ok X1, ok X2) -> ok cons(X1, X2), from mark X -> mark from X, from ok X -> ok from X, s mark X -> mark s X, s ok X -> ok s X, active cons(X1, X2) -> cons(active X1, X2), active from X -> mark cons(X, from s X), active from X -> from active X, active s X -> s active X, active head X -> head active X, active head cons(X, XS) -> mark X, active 2nd X -> 2nd active X, active 2nd cons(X, XS) -> mark head XS, active take(X1, X2) -> take(X1, active X2), active take(X1, X2) -> take(active X1, X2), active take(s N, cons(X, XS)) -> mark cons(X, take(N, XS)), active take(0(), XS) -> mark nil(), active sel(X1, X2) -> sel(X1, active X2), active sel(X1, X2) -> sel(active X1, X2), active sel(s N, cons(X, XS)) -> mark sel(N, XS), active sel(0(), cons(X, XS)) -> mark X, head mark X -> mark head X, head ok X -> ok head X, 2nd mark X -> mark 2nd X, 2nd ok X -> ok 2nd X, take(X1, mark X2) -> mark take(X1, X2), take(mark X1, X2) -> mark take(X1, X2), take(ok X1, ok X2) -> ok take(X1, X2), sel(X1, mark X2) -> mark sel(X1, X2), sel(mark X1, X2) -> mark sel(X1, X2), sel(ok X1, ok X2) -> ok sel(X1, X2), proper cons(X1, X2) -> cons(proper X1, proper X2), proper from X -> from proper X, proper s X -> s proper X, proper head X -> head proper X, proper 2nd X -> 2nd proper X, proper nil() -> ok nil(), proper take(X1, X2) -> take(proper X1, proper X2), proper 0() -> ok 0(), proper sel(X1, X2) -> sel(proper X1, proper X2), top mark X -> top proper X, top ok X -> top active X} DP: DP: { cons#(mark X1, X2) -> cons#(X1, X2), cons#(ok X1, ok X2) -> cons#(X1, X2), from# mark X -> from# X, from# ok X -> from# X, s# mark X -> s# X, s# ok X -> s# X, active# cons(X1, X2) -> cons#(active X1, X2), active# cons(X1, X2) -> active# X1, active# from X -> cons#(X, from s X), active# from X -> from# s X, active# from X -> from# active X, active# from X -> s# X, active# from X -> active# X, active# s X -> s# active X, active# s X -> active# X, active# head X -> active# X, active# head X -> head# active X, active# 2nd X -> active# X, active# 2nd X -> 2nd# active X, active# 2nd cons(X, XS) -> head# XS, active# take(X1, X2) -> active# X1, active# take(X1, X2) -> active# X2, active# take(X1, X2) -> take#(X1, active X2), active# take(X1, X2) -> take#(active X1, X2), active# take(s N, cons(X, XS)) -> cons#(X, take(N, XS)), active# take(s N, cons(X, XS)) -> take#(N, XS), active# sel(X1, X2) -> active# X1, active# sel(X1, X2) -> active# X2, active# sel(X1, X2) -> sel#(X1, active X2), active# sel(X1, X2) -> sel#(active X1, X2), active# sel(s N, cons(X, XS)) -> sel#(N, XS), head# mark X -> head# X, head# ok X -> head# X, 2nd# mark X -> 2nd# X, 2nd# ok X -> 2nd# X, take#(X1, mark X2) -> take#(X1, X2), take#(mark X1, X2) -> take#(X1, X2), take#(ok X1, ok X2) -> take#(X1, X2), sel#(X1, mark X2) -> sel#(X1, X2), sel#(mark X1, X2) -> sel#(X1, X2), sel#(ok X1, ok X2) -> sel#(X1, X2), proper# cons(X1, X2) -> cons#(proper X1, proper X2), proper# cons(X1, X2) -> proper# X1, proper# cons(X1, X2) -> proper# X2, proper# from X -> from# proper X, proper# from X -> proper# X, proper# s X -> s# proper X, proper# s X -> proper# X, proper# head X -> head# proper X, proper# head X -> proper# X, proper# 2nd X -> 2nd# proper X, proper# 2nd X -> proper# X, proper# take(X1, X2) -> take#(proper X1, proper X2), proper# take(X1, X2) -> proper# X1, proper# take(X1, X2) -> proper# X2, proper# sel(X1, X2) -> sel#(proper X1, proper X2), proper# sel(X1, X2) -> proper# X1, proper# sel(X1, X2) -> proper# X2, top# mark X -> proper# X, top# mark X -> top# proper X, top# ok X -> active# X, top# ok X -> top# active X} TRS: { cons(mark X1, X2) -> mark cons(X1, X2), cons(ok X1, ok X2) -> ok cons(X1, X2), from mark X -> mark from X, from ok X -> ok from X, s mark X -> mark s X, s ok X -> ok s X, active cons(X1, X2) -> cons(active X1, X2), active from X -> mark cons(X, from s X), active from X -> from active X, active s X -> s active X, active head X -> head active X, active head cons(X, XS) -> mark X, active 2nd X -> 2nd active X, active 2nd cons(X, XS) -> mark head XS, active take(X1, X2) -> take(X1, active X2), active take(X1, X2) -> take(active X1, X2), active take(s N, cons(X, XS)) -> mark cons(X, take(N, XS)), active take(0(), XS) -> mark nil(), active sel(X1, X2) -> sel(X1, active X2), active sel(X1, X2) -> sel(active X1, X2), active sel(s N, cons(X, XS)) -> mark sel(N, XS), active sel(0(), cons(X, XS)) -> mark X, head mark X -> mark head X, head ok X -> ok head X, 2nd mark X -> mark 2nd X, 2nd ok X -> ok 2nd X, take(X1, mark X2) -> mark take(X1, X2), take(mark X1, X2) -> mark take(X1, X2), take(ok X1, ok X2) -> ok take(X1, X2), sel(X1, mark X2) -> mark sel(X1, X2), sel(mark X1, X2) -> mark sel(X1, X2), sel(ok X1, ok X2) -> ok sel(X1, X2), proper cons(X1, X2) -> cons(proper X1, proper X2), proper from X -> from proper X, proper s X -> s proper X, proper head X -> head proper X, proper 2nd X -> 2nd proper X, proper nil() -> ok nil(), proper take(X1, X2) -> take(proper X1, proper X2), proper 0() -> ok 0(), proper sel(X1, X2) -> sel(proper X1, proper X2), top mark X -> top proper X, top ok X -> top active X} EDG: { (active# sel(X1, X2) -> sel#(X1, active X2), sel#(ok X1, ok X2) -> sel#(X1, X2)) (active# sel(X1, X2) -> sel#(X1, active X2), sel#(mark X1, X2) -> sel#(X1, X2)) (active# sel(X1, X2) -> sel#(X1, active X2), sel#(X1, mark X2) -> sel#(X1, X2)) (proper# take(X1, X2) -> take#(proper X1, proper X2), take#(ok X1, ok X2) -> take#(X1, X2)) (proper# take(X1, X2) -> take#(proper X1, proper X2), take#(mark X1, X2) -> take#(X1, X2)) (proper# take(X1, X2) -> take#(proper X1, proper X2), take#(X1, mark X2) -> take#(X1, X2)) (active# cons(X1, X2) -> active# X1, active# sel(s N, cons(X, XS)) -> sel#(N, XS)) (active# cons(X1, X2) -> active# X1, active# sel(X1, X2) -> sel#(active X1, X2)) (active# cons(X1, X2) -> active# X1, active# sel(X1, X2) -> sel#(X1, active X2)) (active# cons(X1, X2) -> active# X1, active# sel(X1, X2) -> active# X2) (active# cons(X1, X2) -> active# X1, active# sel(X1, X2) -> active# X1) (active# cons(X1, X2) -> active# X1, active# take(s N, cons(X, XS)) -> take#(N, XS)) (active# cons(X1, X2) -> active# X1, active# take(s N, cons(X, XS)) -> cons#(X, take(N, XS))) (active# cons(X1, X2) -> active# X1, active# take(X1, X2) -> take#(active X1, X2)) (active# cons(X1, X2) -> active# X1, active# take(X1, X2) -> take#(X1, active X2)) (active# cons(X1, X2) -> active# X1, active# take(X1, X2) -> active# X2) (active# cons(X1, X2) -> active# X1, active# take(X1, X2) -> active# X1) (active# cons(X1, X2) -> active# X1, active# 2nd cons(X, XS) -> head# XS) (active# cons(X1, X2) -> active# X1, active# 2nd X -> 2nd# active X) (active# cons(X1, X2) -> active# X1, active# 2nd X -> active# X) (active# cons(X1, X2) -> active# X1, active# head X -> head# active X) (active# cons(X1, X2) -> active# X1, active# head X -> active# X) (active# cons(X1, X2) -> active# X1, active# s X -> active# X) (active# cons(X1, X2) -> active# X1, active# s X -> s# active X) (active# cons(X1, X2) -> active# X1, active# from X -> active# X) (active# cons(X1, X2) -> active# X1, active# from X -> s# X) (active# cons(X1, X2) -> active# X1, active# from X -> from# active X) (active# cons(X1, X2) -> active# X1, active# from X -> from# s X) (active# cons(X1, X2) -> active# X1, active# from X -> cons#(X, from s X)) (active# cons(X1, X2) -> active# X1, active# cons(X1, X2) -> active# X1) (active# cons(X1, X2) -> active# X1, active# cons(X1, X2) -> cons#(active X1, X2)) (active# sel(X1, X2) -> active# X1, active# sel(s N, cons(X, XS)) -> sel#(N, XS)) (active# sel(X1, X2) -> active# X1, active# sel(X1, X2) -> sel#(active X1, X2)) (active# sel(X1, X2) -> active# X1, active# sel(X1, X2) -> sel#(X1, active X2)) (active# sel(X1, X2) -> active# X1, active# sel(X1, X2) -> active# X2) (active# sel(X1, X2) -> active# X1, active# sel(X1, X2) -> active# X1) (active# sel(X1, X2) -> active# X1, active# take(s N, cons(X, XS)) -> take#(N, XS)) (active# sel(X1, X2) -> active# X1, active# take(s N, cons(X, XS)) -> cons#(X, take(N, XS))) (active# sel(X1, X2) -> active# X1, active# take(X1, X2) -> take#(active X1, X2)) (active# sel(X1, X2) -> active# X1, active# take(X1, X2) -> take#(X1, active X2)) (active# sel(X1, X2) -> active# X1, active# take(X1, X2) -> active# X2) (active# sel(X1, X2) -> active# X1, active# take(X1, X2) -> active# X1) (active# sel(X1, X2) -> active# X1, active# 2nd cons(X, XS) -> head# XS) (active# sel(X1, X2) -> active# X1, active# 2nd X -> 2nd# active X) (active# sel(X1, X2) -> active# X1, active# 2nd X -> active# X) (active# sel(X1, X2) -> active# X1, active# head X -> head# active X) (active# sel(X1, X2) -> active# X1, active# head X -> active# X) (active# sel(X1, X2) -> active# X1, active# s X -> active# X) (active# sel(X1, X2) -> active# X1, active# s X -> s# active X) (active# sel(X1, X2) -> active# X1, active# from X -> active# X) (active# sel(X1, X2) -> active# X1, active# from X -> s# X) (active# sel(X1, X2) -> active# X1, active# from X -> from# active X) (active# sel(X1, X2) -> active# X1, active# from X -> from# s X) (active# sel(X1, X2) -> active# X1, active# from X -> cons#(X, from s X)) (active# sel(X1, X2) -> active# X1, active# cons(X1, X2) -> active# X1) (active# sel(X1, X2) -> active# X1, active# cons(X1, X2) -> cons#(active X1, X2)) (proper# take(X1, X2) -> proper# X1, proper# sel(X1, X2) -> proper# X2) (proper# take(X1, X2) -> proper# X1, proper# sel(X1, X2) -> proper# X1) (proper# take(X1, X2) -> proper# X1, proper# sel(X1, X2) -> sel#(proper X1, proper X2)) (proper# take(X1, X2) -> proper# X1, proper# take(X1, X2) -> proper# X2) (proper# take(X1, X2) -> proper# X1, proper# take(X1, X2) -> proper# X1) (proper# take(X1, X2) -> proper# X1, proper# take(X1, X2) -> take#(proper X1, proper X2)) (proper# take(X1, X2) -> proper# X1, proper# 2nd X -> proper# X) (proper# take(X1, X2) -> proper# X1, proper# 2nd X -> 2nd# proper X) (proper# take(X1, X2) -> proper# X1, proper# head X -> proper# X) (proper# take(X1, X2) -> proper# X1, proper# head X -> head# proper X) (proper# take(X1, X2) -> proper# X1, proper# s X -> proper# X) (proper# take(X1, X2) -> proper# X1, proper# s X -> s# proper X) (proper# take(X1, X2) -> proper# X1, proper# from X -> proper# X) (proper# take(X1, X2) -> proper# X1, proper# from X -> from# proper X) (proper# take(X1, X2) -> proper# X1, proper# cons(X1, X2) -> proper# X2) (proper# take(X1, X2) -> proper# X1, proper# cons(X1, X2) -> proper# X1) (proper# take(X1, X2) -> proper# X1, proper# cons(X1, X2) -> cons#(proper X1, proper X2)) (active# take(s N, cons(X, XS)) -> cons#(X, take(N, XS)), cons#(ok X1, ok X2) -> cons#(X1, X2)) (active# take(s N, cons(X, XS)) -> cons#(X, take(N, XS)), cons#(mark X1, X2) -> cons#(X1, X2)) (active# sel(s N, cons(X, XS)) -> sel#(N, XS), sel#(ok X1, ok X2) -> sel#(X1, X2)) (active# sel(s N, cons(X, XS)) -> sel#(N, XS), sel#(mark X1, X2) -> sel#(X1, X2)) (active# sel(s N, cons(X, XS)) -> sel#(N, XS), sel#(X1, mark X2) -> sel#(X1, X2)) (from# ok X -> from# X, from# ok X -> from# X) (from# ok X -> from# X, from# mark X -> from# X) (s# ok X -> s# X, s# ok X -> s# X) (s# ok X -> s# X, s# mark X -> s# X) (active# from X -> active# X, active# sel(s N, cons(X, XS)) -> sel#(N, XS)) (active# from X -> active# X, active# sel(X1, X2) -> sel#(active X1, X2)) (active# from X -> active# X, active# sel(X1, X2) -> sel#(X1, active X2)) (active# from X -> active# X, active# sel(X1, X2) -> active# X2) (active# from X -> active# X, active# sel(X1, X2) -> active# X1) (active# from X -> active# X, active# take(s N, cons(X, XS)) -> take#(N, XS)) (active# from X -> active# X, active# take(s N, cons(X, XS)) -> cons#(X, take(N, XS))) (active# from X -> active# X, active# take(X1, X2) -> take#(active X1, X2)) (active# from X -> active# X, active# take(X1, X2) -> take#(X1, active X2)) (active# from X -> active# X, active# take(X1, X2) -> active# X2) (active# from X -> active# X, active# take(X1, X2) -> active# X1) (active# from X -> active# X, active# 2nd cons(X, XS) -> head# XS) (active# from X -> active# X, active# 2nd X -> 2nd# active X) (active# from X -> active# X, active# 2nd X -> active# X) (active# from X -> active# X, active# head X -> head# active X) (active# from X -> active# X, active# head X -> active# X) (active# from X -> active# X, active# s X -> active# X) (active# from X -> active# X, active# s X -> s# active X) (active# from X -> active# X, active# from X -> active# X) (active# from X -> active# X, active# from X -> s# X) (active# from X -> active# X, active# from X -> from# active X) (active# from X -> active# X, active# from X -> from# s X) (active# from X -> active# X, active# from X -> cons#(X, from s X)) (active# from X -> active# X, active# cons(X1, X2) -> active# X1) (active# from X -> active# X, active# cons(X1, X2) -> cons#(active X1, X2)) (active# head X -> active# X, active# sel(s N, cons(X, XS)) -> sel#(N, XS)) (active# head X -> active# X, active# sel(X1, X2) -> sel#(active X1, X2)) (active# head X -> active# X, active# sel(X1, X2) -> sel#(X1, active X2)) (active# head X -> active# X, active# sel(X1, X2) -> active# X2) (active# head X -> active# X, active# sel(X1, X2) -> active# X1) (active# head X -> active# X, active# take(s N, cons(X, XS)) -> take#(N, XS)) (active# head X -> active# X, active# take(s N, cons(X, XS)) -> cons#(X, take(N, XS))) (active# head X -> active# X, active# take(X1, X2) -> take#(active X1, X2)) (active# head X -> active# X, active# take(X1, X2) -> take#(X1, active X2)) (active# head X -> active# X, active# take(X1, X2) -> active# X2) (active# head X -> active# X, active# take(X1, X2) -> active# X1) (active# head X -> active# X, active# 2nd cons(X, XS) -> head# XS) (active# head X -> active# X, active# 2nd X -> 2nd# active X) (active# head X -> active# X, active# 2nd X -> active# X) (active# head X -> active# X, active# head X -> head# active X) (active# head X -> active# X, active# head X -> active# X) (active# head X -> active# X, active# s X -> active# X) (active# head X -> active# X, active# s X -> s# active X) (active# head X -> active# X, active# from X -> active# X) (active# head X -> active# X, active# from X -> s# X) (active# head X -> active# X, active# from X -> from# active X) (active# head X -> active# X, active# from X -> from# s X) (active# head X -> active# X, active# from X -> cons#(X, from s X)) (active# head X -> active# X, active# cons(X1, X2) -> active# X1) (active# head X -> active# X, active# cons(X1, X2) -> cons#(active X1, X2)) (head# mark X -> head# X, head# ok X -> head# X) (head# mark X -> head# X, head# mark X -> head# X) (2nd# mark X -> 2nd# X, 2nd# ok X -> 2nd# X) (2nd# mark X -> 2nd# X, 2nd# mark X -> 2nd# X) (proper# from X -> proper# X, proper# sel(X1, X2) -> proper# X2) (proper# from X -> proper# X, proper# sel(X1, X2) -> proper# X1) (proper# from X -> proper# X, proper# sel(X1, X2) -> sel#(proper X1, proper X2)) (proper# from X -> proper# X, proper# take(X1, X2) -> proper# X2) (proper# from X -> proper# X, proper# take(X1, X2) -> proper# X1) (proper# from X -> proper# X, proper# take(X1, X2) -> take#(proper X1, proper X2)) (proper# from X -> proper# X, proper# 2nd X -> proper# X) (proper# from X -> proper# X, proper# 2nd X -> 2nd# proper X) (proper# from X -> proper# X, proper# head X -> proper# X) (proper# from X -> proper# X, proper# head X -> head# proper X) (proper# from X -> proper# X, proper# s X -> proper# X) (proper# from X -> proper# X, proper# s X -> s# proper X) (proper# from X -> proper# X, proper# from X -> proper# X) (proper# from X -> proper# X, proper# from X -> from# proper X) (proper# from X -> proper# X, proper# cons(X1, X2) -> proper# X2) (proper# from X -> proper# X, proper# cons(X1, X2) -> proper# X1) (proper# from X -> proper# X, proper# cons(X1, X2) -> cons#(proper X1, proper X2)) (proper# head X -> proper# X, proper# sel(X1, X2) -> proper# X2) (proper# head X -> proper# X, proper# sel(X1, X2) -> proper# X1) (proper# head X -> proper# X, proper# sel(X1, X2) -> sel#(proper X1, proper X2)) (proper# head X -> proper# X, proper# take(X1, X2) -> proper# X2) (proper# head X -> proper# X, proper# take(X1, X2) -> proper# X1) (proper# head X -> proper# X, proper# take(X1, X2) -> take#(proper X1, proper X2)) (proper# head X -> proper# X, proper# 2nd X -> proper# X) (proper# head X -> proper# X, proper# 2nd X -> 2nd# proper X) (proper# head X -> proper# X, proper# head X -> proper# X) (proper# head X -> proper# X, proper# head X -> head# proper X) (proper# head X -> proper# X, proper# s X -> proper# X) (proper# head X -> proper# X, proper# s X -> s# proper X) (proper# head X -> proper# X, proper# from X -> proper# X) (proper# head X -> proper# X, proper# from X -> from# proper X) (proper# head X -> proper# X, proper# cons(X1, X2) -> proper# X2) (proper# head X -> proper# X, proper# cons(X1, X2) -> proper# X1) (proper# head X -> proper# X, proper# cons(X1, X2) -> cons#(proper X1, proper X2)) (top# mark X -> proper# X, proper# sel(X1, X2) -> proper# X2) (top# mark X -> proper# X, proper# sel(X1, X2) -> proper# X1) (top# mark X -> proper# X, proper# sel(X1, X2) -> sel#(proper X1, proper X2)) (top# mark X -> proper# X, proper# take(X1, X2) -> proper# X2) (top# mark X -> proper# X, proper# take(X1, X2) -> proper# X1) (top# mark X -> proper# X, proper# take(X1, X2) -> take#(proper X1, proper X2)) (top# mark X -> proper# X, proper# 2nd X -> proper# X) (top# mark X -> proper# X, proper# 2nd X -> 2nd# proper X) (top# mark X -> proper# X, proper# head X -> proper# X) (top# mark X -> proper# X, proper# head X -> head# proper X) (top# mark X -> proper# X, proper# s X -> proper# X) (top# mark X -> proper# X, proper# s X -> s# proper X) (top# mark X -> proper# X, proper# from X -> proper# X) (top# mark X -> proper# X, proper# from X -> from# proper X) (top# mark X -> proper# X, proper# cons(X1, X2) -> proper# X2) (top# mark X -> proper# X, proper# cons(X1, X2) -> proper# X1) (top# mark X -> proper# X, proper# cons(X1, X2) -> cons#(proper X1, proper X2)) (active# cons(X1, X2) -> cons#(active X1, X2), cons#(ok X1, ok X2) -> cons#(X1, X2)) (active# cons(X1, X2) -> cons#(active X1, X2), cons#(mark X1, X2) -> cons#(X1, X2)) (active# sel(X1, X2) -> sel#(active X1, X2), sel#(ok X1, ok X2) -> sel#(X1, X2)) (active# sel(X1, X2) -> sel#(active X1, X2), sel#(mark X1, X2) -> sel#(X1, X2)) (active# sel(X1, X2) -> sel#(active X1, X2), sel#(X1, mark X2) -> sel#(X1, X2)) (active# sel(X1, X2) -> active# X2, active# sel(s N, cons(X, XS)) -> sel#(N, XS)) (active# sel(X1, X2) -> active# X2, active# sel(X1, X2) -> sel#(active X1, X2)) (active# sel(X1, X2) -> active# X2, active# sel(X1, X2) -> sel#(X1, active X2)) (active# sel(X1, X2) -> active# X2, active# sel(X1, X2) -> active# X2) (active# sel(X1, X2) -> active# X2, active# sel(X1, X2) -> active# X1) (active# sel(X1, X2) -> active# X2, active# take(s N, cons(X, XS)) -> take#(N, XS)) (active# sel(X1, X2) -> 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-> take#(proper X1, proper X2)) (proper# cons(X1, X2) -> proper# X2, proper# take(X1, X2) -> proper# X1) (proper# cons(X1, X2) -> proper# X2, proper# take(X1, X2) -> proper# X2) (proper# cons(X1, X2) -> proper# X2, proper# sel(X1, X2) -> sel#(proper X1, proper X2)) (proper# cons(X1, X2) -> proper# X2, proper# sel(X1, X2) -> proper# X1) (proper# cons(X1, X2) -> proper# X2, proper# sel(X1, X2) -> proper# X2) (active# take(X1, X2) -> active# X2, active# cons(X1, X2) -> cons#(active X1, X2)) (active# take(X1, X2) -> active# X2, active# cons(X1, X2) -> active# X1) (active# take(X1, X2) -> active# X2, active# from X -> cons#(X, from s X)) (active# take(X1, X2) -> active# X2, active# from X -> from# s X) (active# take(X1, X2) -> active# X2, active# from X -> from# active X) (active# take(X1, X2) -> active# X2, active# from X -> s# X) (active# take(X1, X2) -> active# X2, active# from X -> active# X) (active# take(X1, X2) -> active# X2, active# s X -> s# active X) (active# take(X1, X2) -> 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-> active# X, active# head X -> active# X) (active# 2nd X -> active# X, active# head X -> head# active X) (active# 2nd X -> active# X, active# 2nd X -> active# X) (active# 2nd X -> active# X, active# 2nd X -> 2nd# active X) (active# 2nd X -> active# X, active# 2nd cons(X, XS) -> head# XS) (active# 2nd X -> active# X, active# take(X1, X2) -> active# X1) (active# 2nd X -> active# X, active# take(X1, X2) -> active# X2) (active# 2nd X -> active# X, active# take(X1, X2) -> take#(X1, active X2)) (active# 2nd X -> active# X, active# take(X1, X2) -> take#(active X1, X2)) (active# 2nd X -> active# X, active# take(s N, cons(X, XS)) -> cons#(X, take(N, XS))) (active# 2nd X -> active# X, active# take(s N, cons(X, XS)) -> take#(N, XS)) (active# 2nd X -> active# X, active# sel(X1, X2) -> active# X1) (active# 2nd X -> active# X, active# sel(X1, X2) -> active# X2) (active# 2nd X -> active# X, active# sel(X1, X2) -> sel#(X1, active X2)) (active# 2nd X -> active# X, active# sel(X1, X2) -> sel#(active X1, X2)) (active# 2nd X -> active# X, active# sel(s N, cons(X, XS)) -> sel#(N, XS)) (active# s X -> active# X, active# cons(X1, X2) -> cons#(active X1, X2)) (active# s X -> active# X, active# cons(X1, X2) -> active# X1) (active# s X -> active# X, active# from X -> cons#(X, from s X)) (active# s X -> active# X, active# from X -> from# s X) (active# s X -> active# X, active# from X -> from# active X) (active# s X -> active# X, active# from X -> s# X) (active# s X -> active# X, active# from X -> active# X) (active# s X -> active# X, active# s X -> s# active X) (active# s X -> active# X, active# s X -> active# X) (active# s X -> active# X, active# head X -> active# X) (active# s X -> active# X, active# head X -> head# active X) (active# s X -> active# X, active# 2nd X -> active# X) (active# s X -> active# X, active# 2nd X -> 2nd# active X) (active# s X -> active# X, active# 2nd cons(X, XS) -> head# XS) (active# s X -> active# X, active# take(X1, X2) -> active# X1) (active# s X -> active# X, active# take(X1, X2) -> active# X2) (active# s X -> active# X, active# take(X1, X2) -> take#(X1, active X2)) (active# s X -> active# X, active# take(X1, X2) -> take#(active X1, X2)) (active# s X -> active# X, active# take(s N, cons(X, XS)) -> cons#(X, take(N, XS))) (active# s X -> active# X, active# take(s N, cons(X, XS)) -> take#(N, XS)) (active# s X -> active# X, active# sel(X1, X2) -> active# X1) (active# s X -> active# X, active# sel(X1, X2) -> active# X2) (active# s X -> active# X, active# sel(X1, X2) -> sel#(X1, active X2)) (active# s X -> active# X, active# sel(X1, X2) -> sel#(active X1, X2)) (active# s X -> active# X, active# sel(s N, cons(X, XS)) -> sel#(N, XS)) (active# from X -> s# X, s# mark X -> s# X) (active# from X -> s# X, s# ok X -> s# X) (s# mark X -> s# X, s# mark X -> s# X) (s# mark X -> s# X, s# ok X -> s# X) (from# mark X -> from# X, from# mark X -> from# X) (from# mark X -> from# X, from# ok X -> from# X) (active# take(s N, cons(X, XS)) -> take#(N, XS), take#(X1, mark X2) -> take#(X1, X2)) (active# take(s N, cons(X, XS)) -> take#(N, XS), take#(mark X1, X2) -> take#(X1, X2)) (active# take(s N, cons(X, XS)) -> take#(N, XS), take#(ok X1, ok X2) -> take#(X1, X2)) (proper# sel(X1, X2) -> proper# X1, proper# cons(X1, X2) -> cons#(proper X1, proper X2)) (proper# sel(X1, X2) -> proper# X1, proper# cons(X1, X2) -> proper# X1) (proper# sel(X1, X2) -> proper# X1, proper# cons(X1, X2) -> proper# X2) (proper# sel(X1, X2) -> proper# X1, proper# from X -> from# proper X) (proper# sel(X1, X2) -> proper# X1, proper# from X -> proper# X) (proper# sel(X1, X2) -> proper# X1, proper# s X -> s# proper X) (proper# sel(X1, X2) -> proper# X1, proper# s X -> proper# X) (proper# sel(X1, X2) -> proper# X1, proper# head X -> head# proper X) (proper# sel(X1, X2) -> proper# X1, proper# head X -> proper# X) (proper# sel(X1, X2) -> proper# X1, proper# 2nd X -> 2nd# proper X) (proper# sel(X1, X2) -> proper# X1, proper# 2nd X -> proper# X) (proper# sel(X1, X2) -> proper# X1, proper# take(X1, X2) -> take#(proper X1, proper X2)) (proper# sel(X1, X2) -> proper# X1, proper# take(X1, X2) -> proper# X1) (proper# sel(X1, X2) -> proper# X1, proper# take(X1, X2) -> proper# X2) (proper# sel(X1, X2) -> proper# X1, proper# sel(X1, X2) -> sel#(proper X1, proper X2)) (proper# sel(X1, X2) -> proper# X1, proper# sel(X1, X2) -> proper# X1) (proper# sel(X1, X2) -> proper# X1, proper# sel(X1, X2) -> proper# X2) (proper# cons(X1, X2) -> proper# X1, proper# cons(X1, X2) -> cons#(proper X1, proper X2)) (proper# cons(X1, X2) -> proper# X1, proper# cons(X1, X2) -> proper# X1) (proper# cons(X1, X2) -> proper# X1, proper# cons(X1, X2) -> proper# X2) (proper# cons(X1, X2) -> proper# X1, proper# from X -> from# proper X) (proper# cons(X1, X2) -> proper# X1, proper# from X -> proper# X) (proper# cons(X1, X2) -> proper# X1, proper# s X -> s# proper X) (proper# cons(X1, X2) -> proper# X1, proper# s X -> proper# X) (proper# cons(X1, X2) -> proper# X1, proper# head X -> head# proper X) (proper# cons(X1, X2) -> proper# X1, proper# head X -> proper# X) (proper# cons(X1, X2) -> proper# X1, proper# 2nd X -> 2nd# proper X) (proper# cons(X1, X2) -> proper# X1, proper# 2nd X -> proper# X) (proper# cons(X1, X2) -> proper# X1, proper# take(X1, X2) -> take#(proper X1, proper X2)) (proper# cons(X1, X2) -> proper# X1, proper# take(X1, X2) -> proper# X1) (proper# cons(X1, X2) -> proper# X1, proper# take(X1, X2) -> proper# X2) (proper# cons(X1, X2) -> proper# X1, proper# sel(X1, X2) -> sel#(proper X1, proper X2)) (proper# cons(X1, X2) -> proper# X1, proper# sel(X1, X2) -> proper# X1) (proper# cons(X1, X2) -> proper# X1, proper# sel(X1, X2) -> proper# X2) (active# take(X1, X2) -> active# X1, active# cons(X1, X2) -> cons#(active X1, X2)) (active# take(X1, X2) -> active# X1, active# cons(X1, X2) -> active# X1) (active# take(X1, X2) -> active# X1, active# from X -> cons#(X, from s X)) (active# take(X1, X2) -> active# X1, active# from X -> from# s X) (active# take(X1, X2) -> active# X1, active# from X -> from# active X) (active# take(X1, X2) -> active# X1, active# from X -> s# X) (active# take(X1, X2) -> active# X1, active# from X -> active# X) (active# take(X1, X2) -> active# X1, active# s X -> s# active X) (active# take(X1, X2) -> active# X1, active# s X -> active# X) (active# take(X1, X2) -> active# X1, active# head X -> active# X) (active# take(X1, X2) -> active# X1, active# head X -> head# active X) (active# take(X1, X2) -> active# X1, active# 2nd X -> active# X) (active# take(X1, X2) -> active# X1, active# 2nd X -> 2nd# active X) (active# take(X1, X2) -> active# X1, active# 2nd cons(X, XS) -> head# XS) (active# take(X1, X2) -> active# X1, active# take(X1, X2) -> active# X1) (active# take(X1, X2) -> active# X1, active# take(X1, X2) -> active# X2) (active# take(X1, X2) -> active# X1, active# take(X1, X2) -> take#(X1, active X2)) (active# take(X1, X2) -> active# X1, active# take(X1, X2) -> take#(active X1, X2)) (active# take(X1, X2) -> active# X1, active# take(s N, cons(X, XS)) -> cons#(X, take(N, XS))) (active# take(X1, X2) -> active# X1, active# take(s N, cons(X, XS)) -> take#(N, XS)) (active# take(X1, X2) -> active# X1, active# sel(X1, X2) -> active# X1) (active# take(X1, X2) -> active# X1, active# sel(X1, X2) -> active# X2) (active# take(X1, X2) -> active# X1, active# sel(X1, X2) -> sel#(X1, active X2)) (active# take(X1, X2) -> active# X1, active# sel(X1, X2) -> sel#(active X1, X2)) (active# take(X1, X2) -> active# X1, active# sel(s N, cons(X, XS)) -> sel#(N, XS)) (proper# sel(X1, X2) -> sel#(proper X1, proper X2), sel#(X1, mark X2) -> sel#(X1, X2)) (proper# sel(X1, X2) -> sel#(proper X1, proper X2), sel#(mark X1, X2) -> sel#(X1, X2)) (proper# sel(X1, X2) -> sel#(proper X1, proper X2), sel#(ok X1, ok X2) -> sel#(X1, X2)) (proper# cons(X1, X2) -> cons#(proper X1, proper X2), cons#(mark X1, X2) -> cons#(X1, X2)) (proper# cons(X1, X2) -> cons#(proper X1, proper X2), cons#(ok X1, ok X2) -> cons#(X1, X2)) (active# take(X1, X2) -> take#(X1, active X2), take#(X1, mark X2) -> take#(X1, X2)) (active# take(X1, X2) -> take#(X1, active X2), take#(mark X1, X2) -> take#(X1, X2)) (active# take(X1, X2) -> take#(X1, active X2), take#(ok X1, ok X2) -> take#(X1, X2)) } STATUS: arrows: 0.860302 SCCS (10): Scc: {top# mark X -> top# proper X, top# ok X -> top# active X} Scc: {proper# cons(X1, X2) -> proper# X1, proper# cons(X1, X2) -> proper# X2, proper# from X -> proper# X, proper# s X -> proper# X, proper# head X -> proper# X, proper# 2nd X -> proper# X, proper# take(X1, X2) -> proper# X1, proper# take(X1, X2) -> proper# X2, proper# sel(X1, X2) -> proper# X1, proper# sel(X1, X2) -> proper# X2} Scc: {active# cons(X1, X2) -> active# X1, active# from X -> active# X, active# s X -> active# X, active# head X -> active# X, active# 2nd X -> active# X, active# take(X1, X2) -> active# X1, active# take(X1, X2) -> active# X2, active# sel(X1, X2) -> active# X1, active# sel(X1, X2) -> active# X2} Scc: {2nd# mark X -> 2nd# X, 2nd# ok X -> 2nd# X} Scc: {head# mark X -> head# X, head# ok X -> head# X} Scc: {s# mark X -> s# X, s# ok X -> s# X} Scc: {from# mark X -> from# X, from# ok X -> from# X} Scc: { cons#(mark X1, X2) -> cons#(X1, X2), cons#(ok X1, ok X2) -> cons#(X1, X2)} Scc: { sel#(X1, mark X2) -> sel#(X1, X2), sel#(mark X1, X2) -> sel#(X1, X2), sel#(ok X1, ok X2) -> sel#(X1, X2)} Scc: { take#(X1, mark X2) -> take#(X1, X2), take#(mark X1, X2) -> take#(X1, X2), take#(ok X1, ok X2) -> take#(X1, X2)} SCC (2): Strict: {top# mark X -> top# proper X, top# ok X -> top# active X} Weak: { cons(mark X1, X2) -> mark cons(X1, X2), cons(ok X1, ok X2) -> ok cons(X1, X2), from mark X -> mark from X, from ok X -> ok from X, s mark X -> mark s X, s ok X -> ok s X, active cons(X1, X2) -> cons(active X1, X2), active from X -> mark cons(X, from s X), active from X -> from active X, active s X -> s active X, active head X -> head active X, active head cons(X, XS) -> mark X, active 2nd X -> 2nd active X, active 2nd cons(X, XS) -> mark head XS, active take(X1, X2) -> take(X1, active X2), active take(X1, X2) -> take(active X1, X2), active take(s N, cons(X, XS)) -> mark cons(X, take(N, XS)), active take(0(), XS) -> mark nil(), active sel(X1, X2) -> sel(X1, active X2), active sel(X1, X2) -> sel(active X1, X2), active sel(s N, cons(X, XS)) -> mark sel(N, XS), active sel(0(), cons(X, XS)) -> mark X, head mark X -> mark head X, head ok X -> ok head X, 2nd mark X -> mark 2nd X, 2nd ok X -> ok 2nd X, take(X1, mark X2) -> mark take(X1, X2), take(mark X1, X2) -> mark take(X1, X2), take(ok X1, ok X2) -> ok take(X1, X2), sel(X1, mark X2) -> mark sel(X1, X2), sel(mark X1, X2) -> mark sel(X1, X2), sel(ok X1, ok X2) -> ok sel(X1, X2), proper cons(X1, X2) -> cons(proper X1, proper X2), proper from X -> from proper X, proper s X -> s proper X, proper head X -> head proper X, proper 2nd X -> 2nd proper X, proper nil() -> ok nil(), proper take(X1, X2) -> take(proper X1, proper X2), proper 0() -> ok 0(), proper sel(X1, X2) -> sel(proper X1, proper X2), top mark X -> top proper X, top ok X -> top active X} Open SCC (10): Strict: {proper# cons(X1, X2) -> proper# X1, proper# cons(X1, X2) -> proper# X2, proper# from X -> proper# X, proper# s X -> proper# X, proper# head X -> proper# X, proper# 2nd X -> proper# X, proper# take(X1, X2) -> proper# X1, proper# take(X1, X2) -> proper# X2, proper# sel(X1, X2) -> proper# X1, proper# sel(X1, X2) -> proper# X2} Weak: { cons(mark X1, X2) -> mark cons(X1, X2), cons(ok X1, ok X2) -> ok cons(X1, X2), from mark X -> mark from X, from ok X -> ok from X, s mark X -> mark s X, s ok X -> ok s X, active cons(X1, X2) -> cons(active X1, X2), active from X -> mark cons(X, from s X), active from X -> from active X, active s X -> s active X, active head X -> head active X, active head cons(X, XS) -> mark X, active 2nd X -> 2nd active X, active 2nd cons(X, XS) -> mark head XS, active take(X1, X2) -> take(X1, active X2), active take(X1, X2) -> take(active X1, X2), active take(s N, cons(X, XS)) -> mark cons(X, take(N, XS)), active take(0(), XS) -> mark nil(), active sel(X1, X2) -> sel(X1, active X2), active sel(X1, X2) -> sel(active X1, X2), active sel(s N, cons(X, XS)) -> mark sel(N, XS), active sel(0(), cons(X, XS)) -> mark X, head mark X -> mark head X, head ok X -> ok head X, 2nd mark X -> mark 2nd X, 2nd ok X -> ok 2nd X, take(X1, mark X2) -> mark take(X1, X2), take(mark X1, X2) -> mark take(X1, X2), take(ok X1, ok X2) -> ok take(X1, X2), sel(X1, mark X2) -> mark sel(X1, X2), sel(mark X1, X2) -> mark sel(X1, X2), sel(ok X1, ok X2) -> ok sel(X1, X2), proper cons(X1, X2) -> cons(proper X1, proper X2), proper from X -> from proper X, proper s X -> s proper X, proper head X -> head proper X, proper 2nd X -> 2nd proper X, proper nil() -> ok nil(), proper take(X1, X2) -> take(proper X1, proper X2), proper 0() -> ok 0(), proper sel(X1, X2) -> sel(proper X1, proper X2), top mark X -> top proper X, top ok X -> top active X} Open SCC (9): Strict: {active# cons(X1, X2) -> active# X1, active# from X -> active# X, active# s X -> active# X, active# head X -> active# X, active# 2nd X -> active# X, active# take(X1, X2) -> active# X1, active# take(X1, X2) -> active# X2, active# sel(X1, X2) -> active# X1, active# sel(X1, X2) -> active# X2} Weak: { cons(mark X1, X2) -> mark cons(X1, X2), cons(ok X1, ok X2) -> ok cons(X1, X2), from mark X -> mark from X, from ok X -> ok from X, s mark X -> mark s X, s ok X -> ok s X, active cons(X1, X2) -> cons(active X1, X2), active from X -> mark cons(X, from s X), active from X -> from active X, active s X -> s active X, active head X -> head active X, active head cons(X, XS) -> mark X, active 2nd X -> 2nd active X, active 2nd cons(X, XS) -> mark head XS, active take(X1, X2) -> take(X1, active X2), active take(X1, X2) -> take(active X1, X2), active take(s N, cons(X, XS)) -> mark cons(X, take(N, XS)), active take(0(), XS) -> mark nil(), active sel(X1, X2) -> sel(X1, active X2), active sel(X1, X2) -> sel(active X1, X2), active sel(s N, cons(X, XS)) -> mark sel(N, XS), active sel(0(), cons(X, XS)) -> mark X, head mark X -> mark head X, head ok X -> ok head X, 2nd mark X -> mark 2nd X, 2nd ok X -> ok 2nd X, take(X1, mark X2) -> mark take(X1, X2), take(mark X1, X2) -> mark take(X1, X2), take(ok X1, ok X2) -> ok take(X1, X2), sel(X1, mark X2) -> mark sel(X1, X2), sel(mark X1, X2) -> mark sel(X1, X2), sel(ok X1, ok X2) -> ok sel(X1, X2), proper cons(X1, X2) -> cons(proper X1, proper X2), proper from X -> from proper X, proper s X -> s proper X, proper head X -> head proper X, proper 2nd X -> 2nd proper X, proper nil() -> ok nil(), proper take(X1, X2) -> take(proper X1, proper X2), proper 0() -> ok 0(), proper sel(X1, X2) -> sel(proper X1, proper X2), top mark X -> top proper X, top ok X -> top active X} Open SCC (2): Strict: {2nd# mark X -> 2nd# X, 2nd# ok X -> 2nd# X} Weak: { cons(mark X1, X2) -> mark cons(X1, X2), cons(ok X1, ok X2) -> ok cons(X1, X2), from mark X -> mark from X, from ok X -> ok from X, s mark X -> mark s X, s ok X -> ok s X, active cons(X1, X2) -> cons(active X1, X2), active from X -> mark cons(X, from s X), active from X -> from active X, active s X -> s active X, active head X -> head active X, active head cons(X, XS) -> mark X, active 2nd X -> 2nd active X, active 2nd cons(X, XS) -> mark head XS, active take(X1, X2) -> take(X1, active X2), active take(X1, X2) -> take(active X1, X2), active take(s N, cons(X, XS)) -> mark cons(X, take(N, XS)), active take(0(), XS) -> mark nil(), active sel(X1, X2) -> sel(X1, active X2), active sel(X1, X2) -> sel(active X1, X2), active sel(s N, cons(X, XS)) -> mark sel(N, XS), active sel(0(), cons(X, XS)) -> mark X, head mark X -> mark head X, head ok X -> ok head X, 2nd mark X -> mark 2nd X, 2nd ok X -> ok 2nd X, take(X1, mark X2) -> mark take(X1, X2), take(mark X1, X2) -> mark take(X1, X2), take(ok X1, ok X2) -> ok take(X1, X2), sel(X1, mark X2) -> mark sel(X1, X2), sel(mark X1, X2) -> mark sel(X1, X2), sel(ok X1, ok X2) -> ok sel(X1, X2), proper cons(X1, X2) -> cons(proper X1, proper X2), proper from X -> from proper X, proper s X -> s proper X, proper head X -> head proper X, proper 2nd X -> 2nd proper X, proper nil() -> ok nil(), proper take(X1, X2) -> take(proper X1, proper X2), proper 0() -> ok 0(), proper sel(X1, X2) -> sel(proper X1, proper X2), top mark X -> top proper X, top ok X -> top active X} Open SCC (2): Strict: {head# mark X -> head# X, head# ok X -> head# X} Weak: { cons(mark X1, X2) -> mark cons(X1, X2), cons(ok X1, ok X2) -> ok cons(X1, X2), from mark X -> mark from X, from ok X -> ok from X, s mark X -> mark s X, s ok X -> ok s X, active cons(X1, X2) -> cons(active X1, X2), active from X -> mark cons(X, from s X), active from X -> from active X, active s X -> s active X, active head X -> head active X, active head cons(X, XS) -> mark X, active 2nd X -> 2nd active X, active 2nd cons(X, XS) -> mark head XS, active take(X1, X2) -> take(X1, active X2), active take(X1, X2) -> take(active X1, X2), active take(s N, cons(X, XS)) -> mark cons(X, take(N, XS)), active take(0(), XS) -> mark nil(), active sel(X1, X2) -> sel(X1, active X2), active sel(X1, X2) -> sel(active X1, X2), active sel(s N, cons(X, XS)) -> mark sel(N, XS), active sel(0(), cons(X, XS)) -> mark X, head mark X -> mark head X, head ok X -> ok head X, 2nd mark X -> mark 2nd X, 2nd ok X -> ok 2nd X, take(X1, mark X2) -> mark take(X1, X2), take(mark X1, X2) -> mark take(X1, X2), take(ok X1, ok X2) -> ok take(X1, X2), sel(X1, mark X2) -> mark sel(X1, X2), sel(mark X1, X2) -> mark sel(X1, X2), sel(ok X1, ok X2) -> ok sel(X1, X2), proper cons(X1, X2) -> cons(proper X1, proper X2), proper from X -> from proper X, proper s X -> s proper X, proper head X -> head proper X, proper 2nd X -> 2nd proper X, proper nil() -> ok nil(), proper take(X1, X2) -> take(proper X1, proper X2), proper 0() -> ok 0(), proper sel(X1, X2) -> sel(proper X1, proper X2), top mark X -> top proper X, top ok X -> top active X} Open SCC (2): Strict: {s# mark X -> s# X, s# ok X -> s# X} Weak: { cons(mark X1, X2) -> mark cons(X1, X2), cons(ok X1, ok X2) -> ok cons(X1, X2), from mark X -> mark from X, from ok X -> ok from X, s mark X -> mark s X, s ok X -> ok s X, active cons(X1, X2) -> cons(active X1, X2), active from X -> mark cons(X, from s X), active from X -> from active X, active s X -> s active X, active head X -> head active X, active head cons(X, XS) -> mark X, active 2nd X -> 2nd active X, active 2nd cons(X, XS) -> mark head XS, active take(X1, X2) -> take(X1, active X2), active take(X1, X2) -> take(active X1, X2), active take(s N, cons(X, XS)) -> mark cons(X, take(N, XS)), active take(0(), XS) -> mark nil(), active sel(X1, X2) -> sel(X1, active X2), active sel(X1, X2) -> sel(active X1, X2), active sel(s N, cons(X, XS)) -> mark sel(N, XS), active sel(0(), cons(X, XS)) -> mark X, head mark X -> mark head X, head ok X -> ok head X, 2nd mark X -> mark 2nd X, 2nd ok X -> ok 2nd X, take(X1, mark X2) -> mark take(X1, X2), take(mark X1, X2) -> mark take(X1, X2), take(ok X1, ok X2) -> ok take(X1, X2), sel(X1, mark X2) -> mark sel(X1, X2), sel(mark X1, X2) -> mark sel(X1, X2), sel(ok X1, ok X2) -> ok sel(X1, X2), proper cons(X1, X2) -> cons(proper X1, proper X2), proper from X -> from proper X, proper s X -> s proper X, proper head X -> head proper X, proper 2nd X -> 2nd proper X, proper nil() -> ok nil(), proper take(X1, X2) -> take(proper X1, proper X2), proper 0() -> ok 0(), proper sel(X1, X2) -> sel(proper X1, proper X2), top mark X -> top proper X, top ok X -> top active X} Open SCC (2): Strict: {from# mark X -> from# X, from# ok X -> from# X} Weak: { cons(mark X1, X2) -> mark cons(X1, X2), cons(ok X1, ok X2) -> ok cons(X1, X2), from mark X -> mark from X, from ok X -> ok from X, s mark X -> mark s X, s ok X -> ok s X, active cons(X1, X2) -> cons(active X1, X2), active from X -> mark cons(X, from s X), active from X -> from active X, active s X -> s active X, active head X -> head active X, active head cons(X, XS) -> mark X, active 2nd X -> 2nd active X, active 2nd cons(X, XS) -> mark head XS, active take(X1, X2) -> take(X1, active X2), active take(X1, X2) -> take(active X1, X2), active take(s N, cons(X, XS)) -> mark cons(X, take(N, XS)), active take(0(), XS) -> mark nil(), active sel(X1, X2) -> sel(X1, active X2), active sel(X1, X2) -> sel(active X1, X2), active sel(s N, cons(X, XS)) -> mark sel(N, XS), active sel(0(), cons(X, XS)) -> mark X, head mark X -> mark head X, head ok X -> ok head X, 2nd mark X -> mark 2nd X, 2nd ok X -> ok 2nd X, take(X1, mark X2) -> mark take(X1, X2), take(mark X1, X2) -> mark take(X1, X2), take(ok X1, ok X2) -> ok take(X1, X2), sel(X1, mark X2) -> mark sel(X1, X2), sel(mark X1, X2) -> mark sel(X1, X2), sel(ok X1, ok X2) -> ok sel(X1, X2), proper cons(X1, X2) -> cons(proper X1, proper X2), proper from X -> from proper X, proper s X -> s proper X, proper head X -> head proper X, proper 2nd X -> 2nd proper X, proper nil() -> ok nil(), proper take(X1, X2) -> take(proper X1, proper X2), proper 0() -> ok 0(), proper sel(X1, X2) -> sel(proper X1, proper X2), top mark X -> top proper X, top ok X -> top active X} Open SCC (2): Strict: { cons#(mark X1, X2) -> cons#(X1, X2), cons#(ok X1, ok X2) -> cons#(X1, X2)} Weak: { cons(mark X1, X2) -> mark cons(X1, X2), cons(ok X1, ok X2) -> ok cons(X1, X2), from mark X -> mark from X, from ok X -> ok from X, s mark X -> mark s X, s ok X -> ok s X, active cons(X1, X2) -> cons(active X1, X2), active from X -> mark cons(X, from s X), active from X -> from active X, active s X -> s active X, active head X -> head active X, active head cons(X, XS) -> mark X, active 2nd X -> 2nd active X, active 2nd cons(X, XS) -> mark head XS, active take(X1, X2) -> take(X1, active X2), active take(X1, X2) -> take(active X1, X2), active take(s N, cons(X, XS)) -> mark cons(X, take(N, XS)), active take(0(), XS) -> mark nil(), active sel(X1, X2) -> sel(X1, active X2), active sel(X1, X2) -> sel(active X1, X2), active sel(s N, cons(X, XS)) -> mark sel(N, XS), active sel(0(), cons(X, XS)) -> mark X, head mark X -> mark head X, head ok X -> ok head X, 2nd mark X -> mark 2nd X, 2nd ok X -> ok 2nd X, take(X1, mark X2) -> mark take(X1, X2), take(mark X1, X2) -> mark take(X1, X2), take(ok X1, ok X2) -> ok take(X1, X2), sel(X1, mark X2) -> mark sel(X1, X2), sel(mark X1, X2) -> mark sel(X1, X2), sel(ok X1, ok X2) -> ok sel(X1, X2), proper cons(X1, X2) -> cons(proper X1, proper X2), proper from X -> from proper X, proper s X -> s proper X, proper head X -> head proper X, proper 2nd X -> 2nd proper X, proper nil() -> ok nil(), proper take(X1, X2) -> take(proper X1, proper X2), proper 0() -> ok 0(), proper sel(X1, X2) -> sel(proper X1, proper X2), top mark X -> top proper X, top ok X -> top active X} Open SCC (3): Strict: { sel#(X1, mark X2) -> sel#(X1, X2), sel#(mark X1, X2) -> sel#(X1, X2), sel#(ok X1, ok X2) -> sel#(X1, X2)} Weak: { cons(mark X1, X2) -> mark cons(X1, X2), cons(ok X1, ok X2) -> ok cons(X1, X2), from mark X -> mark from X, from ok X -> ok from X, s mark X -> mark s X, s ok X -> ok s X, active cons(X1, X2) -> cons(active X1, X2), active from X -> mark cons(X, from s X), active from X -> from active X, active s X -> s active X, active head X -> head active X, active head cons(X, XS) -> mark X, active 2nd X -> 2nd active X, active 2nd cons(X, XS) -> mark head XS, active take(X1, X2) -> take(X1, active X2), active take(X1, X2) -> take(active X1, X2), active take(s N, cons(X, XS)) -> mark cons(X, take(N, XS)), active take(0(), XS) -> mark nil(), active sel(X1, X2) -> sel(X1, active X2), active sel(X1, X2) -> sel(active X1, X2), active sel(s N, cons(X, XS)) -> mark sel(N, XS), active sel(0(), cons(X, XS)) -> mark X, head mark X -> mark head X, head ok X -> ok head X, 2nd mark X -> mark 2nd X, 2nd ok X -> ok 2nd X, take(X1, mark X2) -> mark take(X1, X2), take(mark X1, X2) -> mark take(X1, X2), take(ok X1, ok X2) -> ok take(X1, X2), sel(X1, mark X2) -> mark sel(X1, X2), sel(mark X1, X2) -> mark sel(X1, X2), sel(ok X1, ok X2) -> ok sel(X1, X2), proper cons(X1, X2) -> cons(proper X1, proper X2), proper from X -> from proper X, proper s X -> s proper X, proper head X -> head proper X, proper 2nd X -> 2nd proper X, proper nil() -> ok nil(), proper take(X1, X2) -> take(proper X1, proper X2), proper 0() -> ok 0(), proper sel(X1, X2) -> sel(proper X1, proper X2), top mark X -> top proper X, top ok X -> top active X} Open SCC (3): Strict: { take#(X1, mark X2) -> take#(X1, X2), take#(mark X1, X2) -> take#(X1, X2), take#(ok X1, ok X2) -> take#(X1, X2)} Weak: { cons(mark X1, X2) -> mark cons(X1, X2), cons(ok X1, ok X2) -> ok cons(X1, X2), from mark X -> mark from X, from ok X -> ok from X, s mark X -> mark s X, s ok X -> ok s X, active cons(X1, X2) -> cons(active X1, X2), active from X -> mark cons(X, from s X), active from X -> from active X, active s X -> s active X, active head X -> head active X, active head cons(X, XS) -> mark X, active 2nd X -> 2nd active X, active 2nd cons(X, XS) -> mark head XS, active take(X1, X2) -> take(X1, active X2), active take(X1, X2) -> take(active X1, X2), active take(s N, cons(X, XS)) -> mark cons(X, take(N, XS)), active take(0(), XS) -> mark nil(), active sel(X1, X2) -> sel(X1, active X2), active sel(X1, X2) -> sel(active X1, X2), active sel(s N, cons(X, XS)) -> mark sel(N, XS), active sel(0(), cons(X, XS)) -> mark X, head mark X -> mark head X, head ok X -> ok head X, 2nd mark X -> mark 2nd X, 2nd ok X -> ok 2nd X, take(X1, mark X2) -> mark take(X1, X2), take(mark X1, X2) -> mark take(X1, X2), take(ok X1, ok X2) -> ok take(X1, X2), sel(X1, mark X2) -> mark sel(X1, X2), sel(mark X1, X2) -> mark sel(X1, X2), sel(ok X1, ok X2) -> ok sel(X1, X2), proper cons(X1, X2) -> cons(proper X1, proper X2), proper from X -> from proper X, proper s X -> s proper X, proper head X -> head proper X, proper 2nd X -> 2nd proper X, proper nil() -> ok nil(), proper take(X1, X2) -> take(proper X1, proper X2), proper 0() -> ok 0(), proper sel(X1, X2) -> sel(proper X1, proper X2), top mark X -> top proper X, top ok X -> top active X} Open