MAYBE

Problem:
 c(a(a(b(a(x1))))) -> a(a(b(a(c(c(a(a(b(x1)))))))))

Proof:
 Complexity Transformation Processor:
  strict:
   c(a(a(b(a(x1))))) -> a(a(b(a(c(c(a(a(b(x1)))))))))
  weak:
   
  Open