Cannot sample enough valid points. (more)

\[\sqrt{\sqrt{x} - 2.54599999999999982 \cdot {x}^{x}}\]
\sqrt{\sqrt{x} - 2.54599999999999982 \cdot {x}^{x}}
double code(double x) {
	return ((double) sqrt(((double) (((double) sqrt(x)) - ((double) (2.546 * ((double) pow(x, x))))))));
}

Reproduce

herbie shell --seed 2020152 
(FPCore (x)
  :name "(sqrt (- (sqrt x) (* 2.546 (pow x x))))"
  :precision binary64
  (sqrt (- (sqrt x) (* 2.546 (pow x x)))))