The rewrite relation of the following TRS is considered.
| U11(tt) | → | U12(splitAt(N,XS)) | (1) |
| U12(pair(YS,ZS)) | → | pair(cons(X),ZS) | (2) |
| and(tt) | → | X | (3) |
| tail(cons(N)) | → | XS | (4) |
| afterNth(N,XS) | → | snd(splitAt(N,XS)) | (5) |
| fst(pair(X,Y)) | → | X | (6) |
| head(cons(N)) | → | N | (7) |
| natsFrom(N) | → | cons(N) | (8) |
| sel(N,XS) | → | head(afterNth(N,XS)) | (9) |
| snd(pair(X,Y)) | → | Y | (10) |
| splitAt(0,XS) | → | pair(nil,XS) | (11) |
| splitAt(s(N),cons(X)) | → | U11(tt) | (12) |
| take(N,XS) | → | fst(splitAt(N,XS)) | (13) |
The TRS violates one of the two variable conditions. Thus, it is not terminating.