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 r3627 = a;
        double r3628 = b;
        double r3629 = r3627 + r3628;
        double r3630 = c;
        double r3631 = r3629 + r3630;
        double r3632 = 2.0;
        double r3633 = r3631 / r3632;
        double r3634 = r3633 - r3627;
        double r3635 = r3633 * r3634;
        double r3636 = r3633 - r3628;
        double r3637 = r3635 * r3636;
        double r3638 = r3633 - r3630;
        double r3639 = r3637 * r3638;
        double r3640 = sqrt(r3639);
        return r3640;
}