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 r2938 = a;
        double r2939 = b;
        double r2940 = r2938 + r2939;
        double r2941 = c;
        double r2942 = r2940 + r2941;
        double r2943 = 2.0;
        double r2944 = r2942 / r2943;
        double r2945 = r2944 - r2938;
        double r2946 = r2944 * r2945;
        double r2947 = r2944 - r2939;
        double r2948 = r2946 * r2947;
        double r2949 = r2944 - r2941;
        double r2950 = r2948 * r2949;
        double r2951 = sqrt(r2950);
        return r2951;
}