Cannot sample enough valid points. (more)

\[0 \lt a \land 0 \lt b \land 0 \lt c\]
\[\sqrt{\left(\left(\frac{\left(a + b\right) + c}{2} \cdot \left(\frac{\left(a + b\right) + c}{2} - a\right)\right) \cdot \left(\frac{\left(a + b\right) + c}{2} - b\right)\right) \cdot \left(\frac{\left(a + b\right) + c}{2} - c\right)}\]
\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 r386399 = a;
        double r386400 = b;
        double r386401 = r386399 + r386400;
        double r386402 = c;
        double r386403 = r386401 + r386402;
        double r386404 = 2.0;
        double r386405 = r386403 / r386404;
        double r386406 = r386405 - r386399;
        double r386407 = r386405 * r386406;
        double r386408 = r386405 - r386400;
        double r386409 = r386407 * r386408;
        double r386410 = r386405 - r386402;
        double r386411 = r386409 * r386410;
        double r386412 = sqrt(r386411);
        return r386412;
}