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 r8417 = a;
        double r8418 = b;
        double r8419 = r8417 + r8418;
        double r8420 = c;
        double r8421 = r8419 + r8420;
        double r8422 = 2.0;
        double r8423 = r8421 / r8422;
        double r8424 = r8423 - r8417;
        double r8425 = r8423 * r8424;
        double r8426 = r8423 - r8418;
        double r8427 = r8425 * r8426;
        double r8428 = r8423 - r8420;
        double r8429 = r8427 * r8428;
        double r8430 = sqrt(r8429);
        return r8430;
}