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 r10773453 = 1.0;
        double r10773454 = s;
        double r10773455 = -r10773454;
        double r10773456 = exp(r10773455);
        double r10773457 = r10773453 + r10773456;
        double r10773458 = r10773453 / r10773457;
        double r10773459 = c_p;
        double r10773460 = pow(r10773458, r10773459);
        double r10773461 = r10773453 - r10773458;
        double r10773462 = c_n;
        double r10773463 = pow(r10773461, r10773462);
        double r10773464 = r10773460 * r10773463;
        double r10773465 = t;
        double r10773466 = -r10773465;
        double r10773467 = exp(r10773466);
        double r10773468 = r10773453 + r10773467;
        double r10773469 = r10773453 / r10773468;
        double r10773470 = pow(r10773469, r10773459);
        double r10773471 = r10773453 - r10773469;
        double r10773472 = pow(r10773471, r10773462);
        double r10773473 = r10773470 * r10773472;
        double r10773474 = r10773464 / r10773473;
        return r10773474;
}

Reproduce

herbie shell --seed 2019163 
(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))))