Cannot sample enough valid points. (more)

\[0.0 \lt c_p \land 0.0 \lt c_n\]
\[\frac{{\left(\frac{1}{1 + e^{-s}}\right)}^{c_p} \cdot {\left(1 - \frac{1}{1 + e^{-s}}\right)}^{c_n}}{{\left(\frac{1}{1 + e^{-t}}\right)}^{c_p} \cdot {\left(1 - \frac{1}{1 + e^{-t}}\right)}^{c_n}}\]
\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 r6552256 = 1.0;
        double r6552257 = s;
        double r6552258 = -r6552257;
        double r6552259 = exp(r6552258);
        double r6552260 = r6552256 + r6552259;
        double r6552261 = r6552256 / r6552260;
        double r6552262 = c_p;
        double r6552263 = pow(r6552261, r6552262);
        double r6552264 = r6552256 - r6552261;
        double r6552265 = c_n;
        double r6552266 = pow(r6552264, r6552265);
        double r6552267 = r6552263 * r6552266;
        double r6552268 = t;
        double r6552269 = -r6552268;
        double r6552270 = exp(r6552269);
        double r6552271 = r6552256 + r6552270;
        double r6552272 = r6552256 / r6552271;
        double r6552273 = pow(r6552272, r6552262);
        double r6552274 = r6552256 - r6552272;
        double r6552275 = pow(r6552274, r6552265);
        double r6552276 = r6552273 * r6552275;
        double r6552277 = r6552267 / r6552276;
        return r6552277;
}