MAYBE

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

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