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 r3706 = a;
        double r3707 = b;
        double r3708 = r3706 + r3707;
        double r3709 = c;
        double r3710 = r3708 + r3709;
        double r3711 = 2.0;
        double r3712 = r3710 / r3711;
        double r3713 = r3712 - r3706;
        double r3714 = r3712 * r3713;
        double r3715 = r3712 - r3707;
        double r3716 = r3714 * r3715;
        double r3717 = r3712 - r3709;
        double r3718 = r3716 * r3717;
        double r3719 = sqrt(r3718);
        return r3719;
}