Standard Out:

in clause transpose_aux/oio(cons(R,Rs),X0,cons(C,Cs)) :- row2col/oooio(R,cons(C,Cs),Cols1,nil,Accm).
  variables have no producer: ["Rs"]

Standard Err:


real	0m0.397s
user	0m0.228s
sys	0m0.036s