0.00/0.00 YES 0.00/0.00 0.00/0.00 0.00/0.00 Succeeded in reading "/export/starexec/sandbox2/benchmark/theBenchmark.trs". 0.00/0.00 (CONDITIONTYPE ORIENTED) 0.00/0.00 (VAR X Y W Z) 0.00/0.00 (RULES 0.00/0.00 plus(0,X) -> X 0.00/0.00 plus(s(X),Y) -> plus(X,s(Y)) 0.00/0.00 fib(0) -> pair(s(0),0) 0.00/0.00 fib(s(X)) -> pair(W,Y) | fib(X) == pair(Y,Z), plus(Y,Z) == W 0.00/0.00 ) 0.00/0.00 (COMMENT [62] Example 4.2 http://www.w3.org/People/Massimo/papers/MIT-LCS-TM-405.pdf submitted by: Thomas Sternagel and Aart Middeldorp) 0.00/0.00 0.00/0.00 No "->="-rules. 0.00/0.00 0.00/0.00 Decomposed conditions if possible. 0.00/0.00 (CONDITIONTYPE ORIENTED) 0.00/0.00 (VAR X Y W Z) 0.00/0.00 (RULES 0.00/0.00 plus(0,X) -> X 0.00/0.00 plus(s(X),Y) -> plus(X,s(Y)) 0.00/0.00 fib(0) -> pair(s(0),0) 0.00/0.00 fib(s(X)) -> pair(W,Y) | fib(X) == pair(Y,Z), plus(Y,Z) == W 0.00/0.00 ) 0.00/0.00 (COMMENT [62] Example 4.2 http://www.w3.org/People/Massimo/papers/MIT-LCS-TM-405.pdf submitted by: Thomas Sternagel and Aart Middeldorp) 0.00/0.00 0.00/0.00 Removed infeasible rules as much as possible. 0.00/0.00 (CONDITIONTYPE ORIENTED) 0.00/0.00 (VAR X Y W Z) 0.00/0.00 (RULES 0.00/0.00 plus(0,X) -> X 0.00/0.00 plus(s(X),Y) -> plus(X,s(Y)) 0.00/0.00 fib(0) -> pair(s(0),0) 0.00/0.00 fib(s(X)) -> pair(W,Y) | fib(X) == pair(Y,Z), plus(Y,Z) == W 0.00/0.00 ) 0.00/0.00 (COMMENT [62] Example 4.2 http://www.w3.org/People/Massimo/papers/MIT-LCS-TM-405.pdf submitted by: Thomas Sternagel and Aart Middeldorp) 0.00/0.00 0.00/0.00 Try to disprove confluence of the following (C)TRS: 0.00/0.00 (CONDITIONTYPE ORIENTED) 0.00/0.00 (VAR X Y W Z) 0.00/0.00 (RULES 0.00/0.00 plus(0,X) -> X 0.00/0.00 plus(s(X),Y) -> plus(X,s(Y)) 0.00/0.00 fib(0) -> pair(s(0),0) 0.00/0.00 fib(s(X)) -> pair(W,Y) | fib(X) == pair(Y,Z), plus(Y,Z) == W 0.00/0.00 ) 0.00/0.00 (COMMENT [62] Example 4.2 http://www.w3.org/People/Massimo/papers/MIT-LCS-TM-405.pdf submitted by: Thomas Sternagel and Aart Middeldorp) 0.00/0.00 0.00/0.00 Failed either to apply SR and U for normal 1CTRSs to the above CTRS or to prove confluence of any converted TRSs. 0.00/0.00 0.00/0.00 Try to apply SR and U for 3DCTRSs to the above CTRS. 0.00/0.00 0.00/0.00 Succeeded in applying U for 3DCTRSs to the above CTRS. 0.00/0.00 U(R) = 0.00/0.00 (VAR x1 x2 x3 x4) 0.00/0.00 (RULES 0.00/0.00 plus(0,x1) -> x1 0.00/0.00 plus(s(x1),x2) -> plus(x1,s(x2)) 0.00/0.00 fib(0) -> pair(s(0),0) 0.00/0.00 fib(s(x1)) -> u1(fib(x1),x1) 0.00/0.00 u1(pair(x2,x3),x1) -> u2(plus(x2,x3),x2,x3,x1) 0.00/0.00 u2(x4,x2,x3,x1) -> pair(x4,x2) 0.00/0.00 ) 0.00/0.00 0.00/0.00 U for 3DCTRSs is sound for the above CTRS. 0.00/0.00 0.00/0.00 U(R) is confluent. 0.00/0.00 0.00/0.00 YES 0.00/0.00 EOF