Timeout in 10.0m

Use the --timeout flag to change the timeout.

\[0 \lt c_p \land 0 \lt c_n\]
\[\frac{{\left(\frac{1}{1 + e^{-s}}\right)}^{c_p} \cdot {\left(1 - \frac{1}{1 + e^{-s}}\right)}^{c_n}}{{\left(\frac{1}{1 + e^{-t}}\right)}^{c_p} \cdot {\left(1 - \frac{1}{1 + e^{-t}}\right)}^{c_n}}\]
\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 r44062242 = 1.0;
        double r44062243 = s;
        double r44062244 = -r44062243;
        double r44062245 = exp(r44062244);
        double r44062246 = r44062242 + r44062245;
        double r44062247 = r44062242 / r44062246;
        double r44062248 = c_p;
        double r44062249 = pow(r44062247, r44062248);
        double r44062250 = r44062242 - r44062247;
        double r44062251 = c_n;
        double r44062252 = pow(r44062250, r44062251);
        double r44062253 = r44062249 * r44062252;
        double r44062254 = t;
        double r44062255 = -r44062254;
        double r44062256 = exp(r44062255);
        double r44062257 = r44062242 + r44062256;
        double r44062258 = r44062242 / r44062257;
        double r44062259 = pow(r44062258, r44062248);
        double r44062260 = r44062242 - r44062258;
        double r44062261 = pow(r44062260, r44062251);
        double r44062262 = r44062259 * r44062261;
        double r44062263 = r44062253 / r44062262;
        return r44062263;
}

Reproduce

herbie shell --seed 2019112 
(FPCore (c_p c_n t s)
  :name "Harley's example"
  :pre (and (< 0 c_p) (< 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))))