Timeout in 10.0m

Use the --timeout flag to change the timeout.

\[0.0 \lt c_p \land 0.0 \lt c_n\]
\[\frac{{\left(\frac{1}{1 + e^{-s}}\right)}^{c_p} \cdot {\left(1 - \frac{1}{1 + e^{-s}}\right)}^{c_n}}{{\left(\frac{1}{1 + e^{-t}}\right)}^{c_p} \cdot {\left(1 - \frac{1}{1 + e^{-t}}\right)}^{c_n}}\]
\frac{{\left(\frac{1}{1 + e^{-s}}\right)}^{c_p} \cdot {\left(1 - \frac{1}{1 + e^{-s}}\right)}^{c_n}}{{\left(\frac{1}{1 + e^{-t}}\right)}^{c_p} \cdot {\left(1 - \frac{1}{1 + e^{-t}}\right)}^{c_n}}
double f(double c_p, double c_n, double t, double s) {
        double r135995 = 1.0;
        double r135996 = s;
        double r135997 = -r135996;
        double r135998 = exp(r135997);
        double r135999 = r135995 + r135998;
        double r136000 = r135995 / r135999;
        double r136001 = c_p;
        double r136002 = pow(r136000, r136001);
        double r136003 = r135995 - r136000;
        double r136004 = c_n;
        double r136005 = pow(r136003, r136004);
        double r136006 = r136002 * r136005;
        double r136007 = t;
        double r136008 = -r136007;
        double r136009 = exp(r136008);
        double r136010 = r135995 + r136009;
        double r136011 = r135995 / r136010;
        double r136012 = pow(r136011, r136001);
        double r136013 = r135995 - r136011;
        double r136014 = pow(r136013, r136004);
        double r136015 = r136012 * r136014;
        double r136016 = r136006 / r136015;
        return r136016;
}

Reproduce

herbie shell --seed 2020045 
(FPCore (c_p c_n t s)
  :name "Harley's example"
  :precision binary64
  :pre (and (< 0.0 c_p) (< 0.0 c_n))

  :herbie-target
  (* (pow (/ (+ 1 (exp (- t))) (+ 1 (exp (- s)))) c_p) (pow (/ (+ 1 (exp t)) (+ 1 (exp s))) c_n))

  (/ (* (pow (/ 1 (+ 1 (exp (- s)))) c_p) (pow (- 1 (/ 1 (+ 1 (exp (- s))))) c_n)) (* (pow (/ 1 (+ 1 (exp (- t)))) c_p) (pow (- 1 (/ 1 (+ 1 (exp (- t))))) c_n))))