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 r2929 = a;
        double r2930 = b;
        double r2931 = r2929 + r2930;
        double r2932 = c;
        double r2933 = r2931 + r2932;
        double r2934 = 2.0;
        double r2935 = r2933 / r2934;
        double r2936 = r2935 - r2929;
        double r2937 = r2935 * r2936;
        double r2938 = r2935 - r2930;
        double r2939 = r2937 * r2938;
        double r2940 = r2935 - r2932;
        double r2941 = r2939 * r2940;
        double r2942 = sqrt(r2941);
        return r2942;
}