MAYBE

Problem:
 f(x,f(y,x)) -> f(f(x,x),f(a(),y))

Proof:
 DP Processor:
  DPs:
   f#(x,f(y,x)) -> f#(a(),y)
   f#(x,f(y,x)) -> f#(x,x)
   f#(x,f(y,x)) -> f#(f(x,x),f(a(),y))
  TRS:
   f(x,f(y,x)) -> f(f(x,x),f(a(),y))
  Restore Modifier:
   DPs:
    f#(x,f(y,x)) -> f#(a(),y)
    f#(x,f(y,x)) -> f#(x,x)
    f#(x,f(y,x)) -> f#(f(x,x),f(a(),y))
   TRS:
    f(x,f(y,x)) -> f(f(x,x),f(a(),y))
   SCC Processor:
    #sccs: 1
    #rules: 3
    #arcs: 9/9
    DPs:
     f#(x,f(y,x)) -> f#(a(),y)
     f#(x,f(y,x)) -> f#(x,x)
     f#(x,f(y,x)) -> f#(f(x,x),f(a(),y))
    TRS:
     f(x,f(y,x)) -> f(f(x,x),f(a(),y))
    Open