0.00/0.03 YES 0.00/0.03 0.00/0.03 Problem 1: 0.00/0.03 0.00/0.03 (VAR X Y) 0.00/0.03 (STRATEGY CONTEXTSENSITIVE 0.00/0.03 (from 1) 0.00/0.03 (length) 0.00/0.03 (length1) 0.00/0.03 (0) 0.00/0.03 (cons 1) 0.00/0.03 (nil) 0.00/0.03 (s 1) 0.00/0.03 ) 0.00/0.03 (RULES 0.00/0.03 from(X) -> cons(X,from(s(X))) 0.00/0.03 length(cons(X,Y)) -> s(length1(Y)) 0.00/0.03 length(nil) -> 0 0.00/0.03 length1(X) -> length(X) 0.00/0.03 ) 0.00/0.03 0.00/0.03 Problem 1: 0.00/0.03 0.00/0.03 Innermost Equivalent Processor: 0.00/0.03 -> Rules: 0.00/0.03 from(X) -> cons(X,from(s(X))) 0.00/0.03 length(cons(X,Y)) -> s(length1(Y)) 0.00/0.03 length(nil) -> 0 0.00/0.03 length1(X) -> length(X) 0.00/0.03 -> The context-sensitive term rewriting system is an orthogonal system. Therefore, innermost cs-termination implies cs-termination. 0.00/0.03 0.00/0.03 0.00/0.03 Problem 1: 0.00/0.03 0.00/0.03 Dependency Pairs Processor: 0.00/0.03 -> Pairs: 0.00/0.03 LENGTH(cons(X,Y)) -> LENGTH1(Y) 0.00/0.03 LENGTH1(X) -> LENGTH(X) 0.00/0.03 -> Rules: 0.00/0.03 from(X) -> cons(X,from(s(X))) 0.00/0.03 length(cons(X,Y)) -> s(length1(Y)) 0.00/0.03 length(nil) -> 0 0.00/0.03 length1(X) -> length(X) 0.00/0.03 -> Unhiding Rules: 0.00/0.03 Empty 0.00/0.03 0.00/0.03 Problem 1: 0.00/0.03 0.00/0.03 SCC Processor: 0.00/0.03 -> Pairs: 0.00/0.03 LENGTH(cons(X,Y)) -> LENGTH1(Y) 0.00/0.03 LENGTH1(X) -> LENGTH(X) 0.00/0.03 -> Rules: 0.00/0.03 from(X) -> cons(X,from(s(X))) 0.00/0.03 length(cons(X,Y)) -> s(length1(Y)) 0.00/0.03 length(nil) -> 0 0.00/0.03 length1(X) -> length(X) 0.00/0.03 -> Unhiding rules: 0.00/0.03 Empty 0.00/0.03 ->Strongly Connected Components: 0.00/0.03 ->->Cycle: 0.00/0.03 ->->-> Pairs: 0.00/0.03 LENGTH(cons(X,Y)) -> LENGTH1(Y) 0.00/0.03 LENGTH1(X) -> LENGTH(X) 0.00/0.03 ->->-> Rules: 0.00/0.03 from(X) -> cons(X,from(s(X))) 0.00/0.03 length(cons(X,Y)) -> s(length1(Y)) 0.00/0.03 length(nil) -> 0 0.00/0.03 length1(X) -> length(X) 0.00/0.03 ->->-> Unhiding rules: 0.00/0.03 Empty 0.00/0.03 0.00/0.03 Problem 1: 0.00/0.03 0.00/0.03 Reduction Pairs Processor: 0.00/0.03 -> Pairs: 0.00/0.03 LENGTH(cons(X,Y)) -> LENGTH1(Y) 0.00/0.03 LENGTH1(X) -> LENGTH(X) 0.00/0.03 -> Rules: 0.00/0.03 from(X) -> cons(X,from(s(X))) 0.00/0.03 length(cons(X,Y)) -> s(length1(Y)) 0.00/0.03 length(nil) -> 0 0.00/0.03 length1(X) -> length(X) 0.00/0.03 -> Unhiding rules: 0.00/0.03 Empty 0.00/0.03 -> Usable rules: 0.00/0.03 Empty 0.00/0.03 ->Interpretation type: 0.00/0.03 Linear 0.00/0.03 ->Coefficients: 0.00/0.03 Natural Numbers 0.00/0.03 ->Dimension: 0.00/0.03 1 0.00/0.03 ->Bound: 0.00/0.03 2 0.00/0.03 ->Interpretation: 0.00/0.03 0.00/0.03 [cons](X1,X2) = 2.X2 + 2 0.00/0.03 [LENGTH](X) = 2.X + 2 0.00/0.03 [LENGTH1](X) = 2.X + 2 0.00/0.03 0.00/0.03 Problem 1: 0.00/0.03 0.00/0.03 SCC Processor: 0.00/0.03 -> Pairs: 0.00/0.03 LENGTH1(X) -> LENGTH(X) 0.00/0.03 -> Rules: 0.00/0.03 from(X) -> cons(X,from(s(X))) 0.00/0.03 length(cons(X,Y)) -> s(length1(Y)) 0.00/0.03 length(nil) -> 0 0.00/0.03 length1(X) -> length(X) 0.00/0.03 -> Unhiding rules: 0.00/0.03 Empty 0.00/0.03 ->Strongly Connected Components: 0.00/0.03 There is no strongly connected component 0.00/0.03 0.00/0.03 The problem is finite. 0.00/0.03 EOF