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

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