; @xtcfilename "./TRS_Relative/INVY_15/ex2.xml"
(format TRS)
(fun s 1)
(fun f 2)
(fun g 2)
(rule (g (s x) y) (g (f x y) y))
(rule (f x y) x :cost 0)
(rule (f x y) (f x (s y)) :cost 0)