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

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