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 r772721 = a;
        double r772722 = b;
        double r772723 = r772721 + r772722;
        double r772724 = c;
        double r772725 = r772723 + r772724;
        double r772726 = 2.0;
        double r772727 = r772725 / r772726;
        double r772728 = r772727 - r772721;
        double r772729 = r772727 * r772728;
        double r772730 = r772727 - r772722;
        double r772731 = r772729 * r772730;
        double r772732 = r772727 - r772724;
        double r772733 = r772731 * r772732;
        double r772734 = sqrt(r772733);
        return r772734;
}