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 r178652 = 1.0;
        double r178653 = s;
        double r178654 = -r178653;
        double r178655 = exp(r178654);
        double r178656 = r178652 + r178655;
        double r178657 = r178652 / r178656;
        double r178658 = c_p;
        double r178659 = pow(r178657, r178658);
        double r178660 = r178652 - r178657;
        double r178661 = c_n;
        double r178662 = pow(r178660, r178661);
        double r178663 = r178659 * r178662;
        double r178664 = t;
        double r178665 = -r178664;
        double r178666 = exp(r178665);
        double r178667 = r178652 + r178666;
        double r178668 = r178652 / r178667;
        double r178669 = pow(r178668, r178658);
        double r178670 = r178652 - r178668;
        double r178671 = pow(r178670, r178661);
        double r178672 = r178669 * r178671;
        double r178673 = r178663 / r178672;
        return r178673;
}

Reproduce

herbie shell --seed 2019195 
(FPCore (c_p c_n t s)
  :name "Harley's example"
  :pre (and (< 0.0 c_p) (< 0.0 c_n))

  :herbie-target
  (* (pow (/ (+ 1.0 (exp (- t))) (+ 1.0 (exp (- s)))) c_p) (pow (/ (+ 1.0 (exp t)) (+ 1.0 (exp s))) c_n))

  (/ (* (pow (/ 1.0 (+ 1.0 (exp (- s)))) c_p) (pow (- 1.0 (/ 1.0 (+ 1.0 (exp (- s))))) c_n)) (* (pow (/ 1.0 (+ 1.0 (exp (- t)))) c_p) (pow (- 1.0 (/ 1.0 (+ 1.0 (exp (- t))))) c_n))))