Problem:
 b() -> a()
 a() -> f(h(b(),a()))
 h(a(),h(f(h(c(),b())),b())) -> f(a())
 h(a(),b()) -> c()

Proof:
 Uncurry Processor:
  b() -> a()
  a() -> f5(f(),f5(f5(h(),b()),a()))
  f5(f5(h(),a()),f5(f5(h(),f5(f(),f5(f5(h(),c()),b()))),b())) -> f5(f(),a())
  f5(f5(h(),a()),b()) -> c()
  Ground Confluence Processor:
   UN by decision procedure.