Exception for (log (/ (* (pow exp (- l)) (pow l k)) fk))

Math

\[\log \left(\frac{{exp}^{\left(-\ell\right)} \cdot {\ell}^{k}}{fk}\right)\]

Reproduce

herbie shell --seed 2020153 
(FPCore (exp l k fk)
  :name "(log (/ (* (pow exp (- l)) (pow l k)) fk))"
  :precision binary64
  (log (/ (* (pow exp (neg l)) (pow l k)) fk)))