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 r17736 = a;
        double r17737 = b;
        double r17738 = r17736 + r17737;
        double r17739 = c;
        double r17740 = r17738 + r17739;
        double r17741 = 2.0;
        double r17742 = r17740 / r17741;
        double r17743 = r17742 - r17736;
        double r17744 = r17742 * r17743;
        double r17745 = r17742 - r17737;
        double r17746 = r17744 * r17745;
        double r17747 = r17742 - r17739;
        double r17748 = r17746 * r17747;
        double r17749 = sqrt(r17748);
        return r17749;
}