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

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