YES(?,POLY)

'Pop* (timeout of 60.0 seconds)'
--------------------------------
Answer:           YES(?,POLY)
Input Problem:    innermost runtime-complexity with respect to
  Rules:
    {  c() -> f()
     , f() -> g()}

Proof Output:    
  The input was oriented with the instance of POP* as induced by the precedence
  
   c > f
  
  and safe mapping
  
   safe(c) = {}, safe(f) = {}, safe(g) = {} .
  
  For your convenience, here is the input in predicative notation:
  
   Rules:
    {  c() -> f()
     , f() -> g()}