MAYBE Problem: -(x,0()) -> x -(s(x),s(y)) -> -(x,y) *(x,0()) -> 0() *(x,s(y)) -> +(*(x,y),x) if(true(),x,y) -> x if(false(),x,y) -> y odd(0()) -> false() odd(s(0())) -> true() odd(s(s(x))) -> odd(x) half(0()) -> 0() half(s(0())) -> 0() half(s(s(x))) -> s(half(x)) if(true(),x,y) -> true() if(false(),x,y) -> false() pow(x,y) -> f(x,y,s(0())) f(x,0(),z) -> z f(x,s(y),z) -> if(odd(s(y)),f(x,y,*(x,z)),f(*(x,x),half(s(y)),z)) Proof: DP Processor: DPs: -#(s(x),s(y)) -> -#(x,y) *#(x,s(y)) -> *#(x,y) odd#(s(s(x))) -> odd#(x) half#(s(s(x))) -> half#(x) pow#(x,y) -> f#(x,y,s(0())) f#(x,s(y),z) -> half#(s(y)) f#(x,s(y),z) -> *#(x,x) f#(x,s(y),z) -> f#(*(x,x),half(s(y)),z) f#(x,s(y),z) -> *#(x,z) f#(x,s(y),z) -> f#(x,y,*(x,z)) f#(x,s(y),z) -> odd#(s(y)) f#(x,s(y),z) -> if#(odd(s(y)),f(x,y,*(x,z)),f(*(x,x),half(s(y)),z)) TRS: -(x,0()) -> x -(s(x),s(y)) -> -(x,y) *(x,0()) -> 0() *(x,s(y)) -> +(*(x,y),x) if(true(),x,y) -> x if(false(),x,y) -> y odd(0()) -> false() odd(s(0())) -> true() odd(s(s(x))) -> odd(x) half(0()) -> 0() half(s(0())) -> 0() half(s(s(x))) -> s(half(x)) if(true(),x,y) -> true() if(false(),x,y) -> false() pow(x,y) -> f(x,y,s(0())) f(x,0(),z) -> z f(x,s(y),z) -> if(odd(s(y)),f(x,y,*(x,z)),f(*(x,x),half(s(y)),z)) TDG Processor: DPs: -#(s(x),s(y)) -> -#(x,y) *#(x,s(y)) -> *#(x,y) odd#(s(s(x))) -> odd#(x) half#(s(s(x))) -> half#(x) pow#(x,y) -> f#(x,y,s(0())) f#(x,s(y),z) -> half#(s(y)) f#(x,s(y),z) -> *#(x,x) f#(x,s(y),z) -> f#(*(x,x),half(s(y)),z) f#(x,s(y),z) -> *#(x,z) f#(x,s(y),z) -> f#(x,y,*(x,z)) f#(x,s(y),z) -> odd#(s(y)) f#(x,s(y),z) -> if#(odd(s(y)),f(x,y,*(x,z)),f(*(x,x),half(s(y)),z)) TRS: -(x,0()) -> x -(s(x),s(y)) -> -(x,y) *(x,0()) -> 0() *(x,s(y)) -> +(*(x,y),x) if(true(),x,y) -> x if(false(),x,y) -> y odd(0()) -> false() odd(s(0())) -> true() odd(s(s(x))) -> odd(x) half(0()) -> 0() half(s(0())) -> 0() half(s(s(x))) -> s(half(x)) if(true(),x,y) -> true() if(false(),x,y) -> false() pow(x,y) -> f(x,y,s(0())) f(x,0(),z) -> z f(x,s(y),z) -> if(odd(s(y)),f(x,y,*(x,z)),f(*(x,x),half(s(y)),z)) graph: f#(x,s(y),z) -> f#(*(x,x),half(s(y)),z) -> f#(x,s(y),z) -> if#(odd(s(y)),f(x,y,*(x,z)),f(*(x,x),half(s(y)),z)) f#(x,s(y),z) -> f#(*(x,x),half(s(y)),z) -> f#(x,s(y),z) -> odd#(s(y)) f#(x,s(y),z) -> f#(*(x,x),half(s(y)),z) -> f#(x,s(y),z) -> f#(x,y,*(x,z)) f#(x,s(y),z) -> f#(*(x,x),half(s(y)),z) -> f#(x,s(y),z) -> *#(x,z) f#(x,s(y),z) -> f#(*(x,x),half(s(y)),z) -> f#(x,s(y),z) -> f#(*(x,x),half(s(y)),z) f#(x,s(y),z) -> f#(*(x,x),half(s(y)),z) -> f#(x,s(y),z) -> *#(x,x) f#(x,s(y),z) -> f#(*(x,x),half(s(y)),z) -> f#(x,s(y),z) -> half#(s(y)) f#(x,s(y),z) -> f#(x,y,*(x,z)) -> f#(x,s(y),z) -> if#(odd(s(y)),f(x,y,*(x,z)),f(*(x,x),half(s(y)),z)) f#(x,s(y),z) -> f#(x,y,*(x,z)) -> f#(x,s(y),z) -> odd#(s(y)) f#(x,s(y),z) -> f#(x,y,*(x,z)) -> f#(x,s(y),z) -> f#(x,y,*(x,z)) f#(x,s(y),z) -> f#(x,y,*(x,z)) -> f#(x,s(y),z) -> *#(x,z) f#(x,s(y),z) -> f#(x,y,*(x,z)) -> f#(x,s(y),z) -> f#(*(x,x),half(s(y)),z) f#(x,s(y),z) -> f#(x,y,*(x,z)) -> f#(x,s(y),z) -> *#(x,x) f#(x,s(y),z) -> f#(x,y,*(x,z)) -> f#(x,s(y),z) -> half#(s(y)) f#(x,s(y),z) -> half#(s(y)) -> half#(s(s(x))) -> half#(x) f#(x,s(y),z) -> odd#(s(y)) -> odd#(s(s(x))) -> odd#(x) f#(x,s(y),z) -> *#(x,z) -> *#(x,s(y)) -> *#(x,y) f#(x,s(y),z) -> *#(x,x) -> *#(x,s(y)) -> *#(x,y) pow#(x,y) -> f#(x,y,s(0())) -> f#(x,s(y),z) -> if#(odd(s(y)),f(x,y,*(x,z)),f(*(x,x),half(s(y)),z)) pow#(x,y) -> f#(x,y,s(0())) -> f#(x,s(y),z) -> odd#(s(y)) pow#(x,y) -> f#(x,y,s(0())) -> f#(x,s(y),z) -> f#(x,y,*(x,z)) pow#(x,y) -> f#(x,y,s(0())) -> f#(x,s(y),z) -> *#(x,z) pow#(x,y) -> f#(x,y,s(0())) -> f#(x,s(y),z) -> f#(*(x,x),half(s(y)),z) pow#(x,y) -> f#(x,y,s(0())) -> f#(x,s(y),z) -> *#(x,x) pow#(x,y) -> f#(x,y,s(0())) -> f#(x,s(y),z) -> half#(s(y)) half#(s(s(x))) -> half#(x) -> half#(s(s(x))) -> half#(x) odd#(s(s(x))) -> odd#(x) -> odd#(s(s(x))) -> odd#(x) *#(x,s(y)) -> *#(x,y) -> *#(x,s(y)) -> *#(x,y) -#(s(x),s(y)) -> -#(x,y) -> -#(s(x),s(y)) -> -#(x,y) SCC Processor: #sccs: 5 #rules: 6 #arcs: 29/144 DPs: -#(s(x),s(y)) -> -#(x,y) TRS: -(x,0()) -> x -(s(x),s(y)) -> -(x,y) *(x,0()) -> 0() *(x,s(y)) -> +(*(x,y),x) if(true(),x,y) -> x if(false(),x,y) -> y odd(0()) -> false() odd(s(0())) -> true() odd(s(s(x))) -> odd(x) half(0()) -> 0() half(s(0())) -> 0() half(s(s(x))) -> s(half(x)) if(true(),x,y) -> true() if(false(),x,y) -> false() pow(x,y) -> f(x,y,s(0())) f(x,0(),z) -> z f(x,s(y),z) -> if(odd(s(y)),f(x,y,*(x,z)),f(*(x,x),half(s(y)),z)) Open DPs: f#(x,s(y),z) -> f#(*(x,x),half(s(y)),z) f#(x,s(y),z) -> f#(x,y,*(x,z)) TRS: -(x,0()) -> x -(s(x),s(y)) -> -(x,y) *(x,0()) -> 0() *(x,s(y)) -> +(*(x,y),x) if(true(),x,y) -> x if(false(),x,y) -> y odd(0()) -> false() odd(s(0())) -> true() odd(s(s(x))) -> odd(x) half(0()) -> 0() half(s(0())) -> 0() half(s(s(x))) -> s(half(x)) if(true(),x,y) -> true() if(false(),x,y) -> false() pow(x,y) -> f(x,y,s(0())) f(x,0(),z) -> z f(x,s(y),z) -> if(odd(s(y)),f(x,y,*(x,z)),f(*(x,x),half(s(y)),z)) Open DPs: odd#(s(s(x))) -> odd#(x) TRS: -(x,0()) -> x -(s(x),s(y)) -> -(x,y) *(x,0()) -> 0() *(x,s(y)) -> +(*(x,y),x) if(true(),x,y) -> x if(false(),x,y) -> y odd(0()) -> false() odd(s(0())) -> true() odd(s(s(x))) -> odd(x) half(0()) -> 0() half(s(0())) -> 0() half(s(s(x))) -> s(half(x)) if(true(),x,y) -> true() if(false(),x,y) -> false() pow(x,y) -> f(x,y,s(0())) f(x,0(),z) -> z f(x,s(y),z) -> if(odd(s(y)),f(x,y,*(x,z)),f(*(x,x),half(s(y)),z)) Open DPs: *#(x,s(y)) -> *#(x,y) TRS: -(x,0()) -> x -(s(x),s(y)) -> -(x,y) *(x,0()) -> 0() *(x,s(y)) -> +(*(x,y),x) if(true(),x,y) -> x if(false(),x,y) -> y odd(0()) -> false() odd(s(0())) -> true() odd(s(s(x))) -> odd(x) half(0()) -> 0() half(s(0())) -> 0() half(s(s(x))) -> s(half(x)) if(true(),x,y) -> true() if(false(),x,y) -> false() pow(x,y) -> f(x,y,s(0())) f(x,0(),z) -> z f(x,s(y),z) -> if(odd(s(y)),f(x,y,*(x,z)),f(*(x,x),half(s(y)),z)) Open DPs: half#(s(s(x))) -> half#(x) TRS: -(x,0()) -> x -(s(x),s(y)) -> -(x,y) *(x,0()) -> 0() *(x,s(y)) -> +(*(x,y),x) if(true(),x,y) -> x if(false(),x,y) -> y odd(0()) -> false() odd(s(0())) -> true() odd(s(s(x))) -> odd(x) half(0()) -> 0() half(s(0())) -> 0() half(s(s(x))) -> s(half(x)) if(true(),x,y) -> true() if(false(),x,y) -> false() pow(x,y) -> f(x,y,s(0())) f(x,0(),z) -> z f(x,s(y),z) -> if(odd(s(y)),f(x,y,*(x,z)),f(*(x,x),half(s(y)),z)) Open