Cannot sample enough valid points. (more)

\[0.0 \lt a \land 0.0 \lt b \land 0.0 \lt c\]
\[\sqrt{\left(\left(\frac{\left(a + b\right) + c}{2} \cdot \left(\frac{\left(a + b\right) + c}{2} - a\right)\right) \cdot \left(\frac{\left(a + b\right) + c}{2} - b\right)\right) \cdot \left(\frac{\left(a + b\right) + c}{2} - c\right)}\]
\sqrt{\left(\left(\frac{\left(a + b\right) + c}{2} \cdot \left(\frac{\left(a + b\right) + c}{2} - a\right)\right) \cdot \left(\frac{\left(a + b\right) + c}{2} - b\right)\right) \cdot \left(\frac{\left(a + b\right) + c}{2} - c\right)}
double f(double a, double b, double c) {
        double r2891 = a;
        double r2892 = b;
        double r2893 = r2891 + r2892;
        double r2894 = c;
        double r2895 = r2893 + r2894;
        double r2896 = 2.0;
        double r2897 = r2895 / r2896;
        double r2898 = r2897 - r2891;
        double r2899 = r2897 * r2898;
        double r2900 = r2897 - r2892;
        double r2901 = r2899 * r2900;
        double r2902 = r2897 - r2894;
        double r2903 = r2901 * r2902;
        double r2904 = sqrt(r2903);
        return r2904;
}