MAYBE Problem: f(true(),x,y) -> f(and(gt(x,y),gt(y,s(s(0())))),plus(s(0()),x),double(y)) gt(0(),v) -> false() gt(s(u),0()) -> true() gt(s(u),s(v)) -> gt(u,v) and(x,true()) -> x and(x,false()) -> false() plus(n,0()) -> n plus(n,s(m)) -> s(plus(n,m)) plus(plus(n,m),u) -> plus(n,plus(m,u)) double(0()) -> 0() double(s(x)) -> s(s(double(x))) Proof: DP Processor: DPs: f#(true(),x,y) -> double#(y) f#(true(),x,y) -> plus#(s(0()),x) f#(true(),x,y) -> gt#(y,s(s(0()))) f#(true(),x,y) -> gt#(x,y) f#(true(),x,y) -> and#(gt(x,y),gt(y,s(s(0())))) f#(true(),x,y) -> f#(and(gt(x,y),gt(y,s(s(0())))),plus(s(0()),x),double(y)) gt#(s(u),s(v)) -> gt#(u,v) plus#(n,s(m)) -> plus#(n,m) plus#(plus(n,m),u) -> plus#(m,u) plus#(plus(n,m),u) -> plus#(n,plus(m,u)) double#(s(x)) -> double#(x) TRS: f(true(),x,y) -> f(and(gt(x,y),gt(y,s(s(0())))),plus(s(0()),x),double(y)) gt(0(),v) -> false() gt(s(u),0()) -> true() gt(s(u),s(v)) -> gt(u,v) and(x,true()) -> x and(x,false()) -> false() plus(n,0()) -> n plus(n,s(m)) -> s(plus(n,m)) plus(plus(n,m),u) -> plus(n,plus(m,u)) double(0()) -> 0() double(s(x)) -> s(s(double(x))) EDG Processor: DPs: f#(true(),x,y) -> double#(y) f#(true(),x,y) -> plus#(s(0()),x) f#(true(),x,y) -> gt#(y,s(s(0()))) f#(true(),x,y) -> gt#(x,y) f#(true(),x,y) -> and#(gt(x,y),gt(y,s(s(0())))) f#(true(),x,y) -> f#(and(gt(x,y),gt(y,s(s(0())))),plus(s(0()),x),double(y)) gt#(s(u),s(v)) -> gt#(u,v) plus#(n,s(m)) -> plus#(n,m) plus#(plus(n,m),u) -> plus#(m,u) plus#(plus(n,m),u) -> plus#(n,plus(m,u)) double#(s(x)) -> double#(x) TRS: f(true(),x,y) -> f(and(gt(x,y),gt(y,s(s(0())))),plus(s(0()),x),double(y)) gt(0(),v) -> false() gt(s(u),0()) -> true() gt(s(u),s(v)) -> gt(u,v) and(x,true()) -> x and(x,false()) -> false() plus(n,0()) -> n plus(n,s(m)) -> s(plus(n,m)) plus(plus(n,m),u) -> plus(n,plus(m,u)) double(0()) -> 0() double(s(x)) -> s(s(double(x))) graph: gt#(s(u),s(v)) -> gt#(u,v) -> gt#(s(u),s(v)) -> gt#(u,v) plus#(plus(n,m),u) -> plus#(m,u) -> plus#(n,s(m)) -> plus#(n,m) plus#(plus(n,m),u) -> plus#(m,u) -> plus#(plus(n,m),u) -> plus#(m,u) plus#(plus(n,m),u) -> plus#(m,u) -> plus#(plus(n,m),u) -> plus#(n,plus(m,u)) plus#(plus(n,m),u) -> plus#(n,plus(m,u)) -> plus#(n,s(m)) -> plus#(n,m) plus#(n,s(m)) -> plus#(n,m) -> plus#(n,s(m)) -> plus#(n,m) plus#(n,s(m)) -> plus#(n,m) -> plus#(plus(n,m),u) -> plus#(m,u) plus#(n,s(m)) -> plus#(n,m) -> plus#(plus(n,m),u) -> plus#(n,plus(m,u)) double#(s(x)) -> double#(x) -> double#(s(x)) -> double#(x) f#(true(),x,y) -> gt#(y,s(s(0()))) -> gt#(s(u),s(v)) -> gt#(u,v) f#(true(),x,y) -> gt#(x,y) -> gt#(s(u),s(v)) -> gt#(u,v) f#(true(),x,y) -> plus#(s(0()),x) -> plus#(n,s(m)) -> plus#(n,m) f#(true(),x,y) -> double#(y) -> double#(s(x)) -> double#(x) f#(true(),x,y) -> f#(and(gt(x,y),gt(y,s(s(0())))),plus(s(0()),x),double(y)) -> f#(true(),x,y) -> double#(y) f#(true(),x,y) -> f#(and(gt(x,y),gt(y,s(s(0())))),plus(s(0()),x),double(y)) -> f#(true(),x,y) -> plus#(s(0()),x) f#(true(),x,y) -> f#(and(gt(x,y),gt(y,s(s(0())))),plus(s(0()),x),double(y)) -> f#(true(),x,y) -> gt#(y,s(s(0()))) f#(true(),x,y) -> f#(and(gt(x,y),gt(y,s(s(0())))),plus(s(0()),x),double(y)) -> f#(true(),x,y) -> gt#(x,y) f#(true(),x,y) -> f#(and(gt(x,y),gt(y,s(s(0())))),plus(s(0()),x),double(y)) -> f#(true(),x,y) -> and#(gt(x,y),gt(y,s(s(0())))) f#(true(),x,y) -> f#(and(gt(x,y),gt(y,s(s(0())))),plus(s(0()),x),double(y)) -> f#(true(),x,y) -> f#(and(gt(x,y),gt(y,s(s(0())))),plus(s(0()),x),double(y)) SCC Processor: #sccs: 4 #rules: 6 #arcs: 19/121 DPs: f#(true(),x,y) -> f#(and(gt(x,y),gt(y,s(s(0())))),plus(s(0()),x),double(y)) TRS: f(true(),x,y) -> f(and(gt(x,y),gt(y,s(s(0())))),plus(s(0()),x),double(y)) gt(0(),v) -> false() gt(s(u),0()) -> true() gt(s(u),s(v)) -> gt(u,v) and(x,true()) -> x and(x,false()) -> false() plus(n,0()) -> n plus(n,s(m)) -> s(plus(n,m)) plus(plus(n,m),u) -> plus(n,plus(m,u)) double(0()) -> 0() double(s(x)) -> s(s(double(x))) Open DPs: double#(s(x)) -> double#(x) TRS: f(true(),x,y) -> f(and(gt(x,y),gt(y,s(s(0())))),plus(s(0()),x),double(y)) gt(0(),v) -> false() gt(s(u),0()) -> true() gt(s(u),s(v)) -> gt(u,v) and(x,true()) -> x and(x,false()) -> false() plus(n,0()) -> n plus(n,s(m)) -> s(plus(n,m)) plus(plus(n,m),u) -> plus(n,plus(m,u)) double(0()) -> 0() double(s(x)) -> s(s(double(x))) Open DPs: plus#(plus(n,m),u) -> plus#(m,u) plus#(plus(n,m),u) -> plus#(n,plus(m,u)) plus#(n,s(m)) -> plus#(n,m) TRS: f(true(),x,y) -> f(and(gt(x,y),gt(y,s(s(0())))),plus(s(0()),x),double(y)) gt(0(),v) -> false() gt(s(u),0()) -> true() gt(s(u),s(v)) -> gt(u,v) and(x,true()) -> x and(x,false()) -> false() plus(n,0()) -> n plus(n,s(m)) -> s(plus(n,m)) plus(plus(n,m),u) -> plus(n,plus(m,u)) double(0()) -> 0() double(s(x)) -> s(s(double(x))) Matrix Interpretation Processor: dimension: 1 interpretation: [plus#](x0, x1) = x0 + 1, [false] = 0, [double](x0) = x0 + 1, [plus](x0, x1) = x0 + x1 + 1, [and](x0, x1) = x0 + 1, [s](x0) = 1, [0] = 0, [gt](x0, x1) = 0, [f](x0, x1, x2) = 0, [true] = 0 orientation: plus#(plus(n,m),u) = m + n + 2 >= m + 1 = plus#(m,u) plus#(plus(n,m),u) = m + n + 2 >= n + 1 = plus#(n,plus(m,u)) plus#(n,s(m)) = n + 1 >= n + 1 = plus#(n,m) f(true(),x,y) = 0 >= 0 = f(and(gt(x,y),gt(y,s(s(0())))),plus(s(0()),x),double(y)) gt(0(),v) = 0 >= 0 = false() gt(s(u),0()) = 0 >= 0 = true() gt(s(u),s(v)) = 0 >= 0 = gt(u,v) and(x,true()) = x + 1 >= x = x and(x,false()) = x + 1 >= 0 = false() plus(n,0()) = n + 1 >= n = n plus(n,s(m)) = n + 2 >= 1 = s(plus(n,m)) plus(plus(n,m),u) = m + n + u + 2 >= m + n + u + 2 = plus(n,plus(m,u)) double(0()) = 1 >= 0 = 0() double(s(x)) = 2 >= 1 = s(s(double(x))) problem: DPs: plus#(n,s(m)) -> plus#(n,m) TRS: f(true(),x,y) -> f(and(gt(x,y),gt(y,s(s(0())))),plus(s(0()),x),double(y)) gt(0(),v) -> false() gt(s(u),0()) -> true() gt(s(u),s(v)) -> gt(u,v) and(x,true()) -> x and(x,false()) -> false() plus(n,0()) -> n plus(n,s(m)) -> s(plus(n,m)) plus(plus(n,m),u) -> plus(n,plus(m,u)) double(0()) -> 0() double(s(x)) -> s(s(double(x))) Open DPs: gt#(s(u),s(v)) -> gt#(u,v) TRS: f(true(),x,y) -> f(and(gt(x,y),gt(y,s(s(0())))),plus(s(0()),x),double(y)) gt(0(),v) -> false() gt(s(u),0()) -> true() gt(s(u),s(v)) -> gt(u,v) and(x,true()) -> x and(x,false()) -> false() plus(n,0()) -> n plus(n,s(m)) -> s(plus(n,m)) plus(plus(n,m),u) -> plus(n,plus(m,u)) double(0()) -> 0() double(s(x)) -> s(s(double(x))) Open