YES Input TRS: 1: a__f(X) -> cons(mark(X),f(g(X))) 2: a__g(0()) -> s(0()) 3: a__g(s(X)) -> s(s(a__g(mark(X)))) 4: a__sel(0(),cons(X,Y)) -> mark(X) 5: a__sel(s(X),cons(Y,Z)) -> a__sel(mark(X),mark(Z)) 6: mark(f(X)) -> a__f(mark(X)) 7: mark(g(X)) -> a__g(mark(X)) 8: mark(sel(X1,X2)) -> a__sel(mark(X1),mark(X2)) 9: mark(cons(X1,X2)) -> cons(mark(X1),X2) 10: mark(0()) -> 0() 11: mark(s(X)) -> s(mark(X)) 12: a__f(X) -> f(X) 13: a__g(X) -> g(X) 14: a__sel(X1,X2) -> sel(X1,X2) Number of strict rules: 14 Direct POLO(bPol) ... failed. Uncurrying ... failed. Dependency Pairs: #1: #mark(f(X)) -> #a__f(mark(X)) #2: #mark(f(X)) -> #mark(X) #3: #mark(cons(X1,X2)) -> #mark(X1) #4: #mark(s(X)) -> #mark(X) #5: #mark(g(X)) -> #a__g(mark(X)) #6: #mark(g(X)) -> #mark(X) #7: #a__sel(s(X),cons(Y,Z)) -> #a__sel(mark(X),mark(Z)) #8: #a__sel(s(X),cons(Y,Z)) -> #mark(X) #9: #a__sel(s(X),cons(Y,Z)) -> #mark(Z) #10: #a__g(s(X)) -> #a__g(mark(X)) #11: #a__g(s(X)) -> #mark(X) #12: #a__f(X) -> #mark(X) #13: #mark(sel(X1,X2)) -> #a__sel(mark(X1),mark(X2)) #14: #mark(sel(X1,X2)) -> #mark(X1) #15: #mark(sel(X1,X2)) -> #mark(X2) #16: #a__sel(0(),cons(X,Y)) -> #mark(X) Number of SCCs: 1, DPs: 16 SCC { #1..16 } POLO(Sum)... POLO(max)... succeeded. a__g w: x1 s w: x1 #a__g w: x1 a__f w: x1 + 2242 f w: x1 + 2242 #mark w: x1 0 w: 1 sel w: max(x1 + 28884, x2 + 1) #a__sel w: max(x1 + 28884, x2 + 1) mark w: x1 a__sel w: max(x1 + 28884, x2 + 1) cons w: max(x1 + 1, x2) #a__f w: x1 + 2241 g w: x1 USABLE RULES: { 1..14 } Removed DPs: #1..3 #8 #9 #12 #14..16 Number of SCCs: 2, DPs: 6 SCC { #7 } POLO(Sum)... POLO(max)... QLPOS... POLO(mSum)... QWPOpS(mSum)... succeeded. a__g s: [1] p: 3 w: x1 s s: [1] p: 2 w: x1 #a__g s: [] p: 0 w: 1 a__f s: [] p: 2 w: x1 + 17679 f s: [] p: 2 w: x1 + 17679 #mark s: [] p: 0 w: 1 0 s: [] p: 0 w: 1 sel s: [] p: 0 w: x2 + 43964 #a__sel s: 1 mark s: 1 a__sel s: [] p: 0 w: x2 + 43964 cons s: [] p: 0 w: max(x1 + 17678, x2) #a__f s: [] p: 0 w: 1 g s: [1] p: 3 w: x1 USABLE RULES: { 1..14 } Removed DPs: #7 Number of SCCs: 1, DPs: 5 SCC { #4..6 #10 #11 } POLO(Sum)... POLO(max)... QLPOS... POLO(mSum)... QWPOpS(mSum)... succeeded. a__g s: [1] p: 3 w: x1 s s: [1] p: 2 w: x1 #a__g s: [1] p: 2 w: x1 a__f s: [] p: 2 w: x1 + 18459 f s: [] p: 2 w: x1 + 18459 #mark s: [1] p: 1 w: x1 0 s: [] p: 0 w: 1 sel s: [] p: 0 w: x2 + 44744 #a__sel s: 1 mark s: 1 a__sel s: [] p: 0 w: x2 + 44744 cons s: [] p: 0 w: max(x1 + 18458, x2) #a__f s: [] p: 0 w: 1 g s: [1] p: 3 w: x1 USABLE RULES: { 1..14 } Removed DPs: #4..6 #10 #11 Number of SCCs: 0, DPs: 0