MAYBE

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

Proof:
 DP Processor:
  DPs:
   f#(x,f(a(),a())) -> f#(x,a())
   f#(x,f(a(),a())) -> f#(f(x,a()),x)
  TRS:
   f(x,f(a(),a())) -> f(f(x,a()),x)
  Usable Rule Processor:
   DPs:
    f#(x,f(a(),a())) -> f#(x,a())
    f#(x,f(a(),a())) -> f#(f(x,a()),x)
   TRS:
    f3(x,y) -> x
    f3(x,y) -> y
   Restore Modifier:
    DPs:
     f#(x,f(a(),a())) -> f#(x,a())
     f#(x,f(a(),a())) -> f#(f(x,a()),x)
    TRS:
     f(x,f(a(),a())) -> f(f(x,a()),x)
    SCC Processor:
     #sccs: 1
     #rules: 2
     #arcs: 4/4
     DPs:
      f#(x,f(a(),a())) -> f#(x,a())
      f#(x,f(a(),a())) -> f#(f(x,a()),x)
     TRS:
      f(x,f(a(),a())) -> f(f(x,a()),x)
     Open