\[\frac{1}{\sqrt{x}} - \frac{1}{\sqrt{x + 1}}\]

Timeout in 10.0m

Use the --timeout flag to change the timeout.

Reproduce

herbie shell --seed 2019088 
(FPCore (x)
  :name "2isqrt (example 3.6)"

  :herbie-target
  (/ 1 (+ (* (+ x 1) (sqrt x)) (* x (sqrt (+ x 1)))))

  (- (/ 1 (sqrt x)) (/ 1 (sqrt (+ x 1)))))