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 r21751 = a;
        double r21752 = b;
        double r21753 = r21751 + r21752;
        double r21754 = c;
        double r21755 = r21753 + r21754;
        double r21756 = 2.0;
        double r21757 = r21755 / r21756;
        double r21758 = r21757 - r21751;
        double r21759 = r21757 * r21758;
        double r21760 = r21757 - r21752;
        double r21761 = r21759 * r21760;
        double r21762 = r21757 - r21754;
        double r21763 = r21761 * r21762;
        double r21764 = sqrt(r21763);
        return r21764;
}