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 r8816 = a;
        double r8817 = b;
        double r8818 = r8816 + r8817;
        double r8819 = c;
        double r8820 = r8818 + r8819;
        double r8821 = 2.0;
        double r8822 = r8820 / r8821;
        double r8823 = r8822 - r8816;
        double r8824 = r8822 * r8823;
        double r8825 = r8822 - r8817;
        double r8826 = r8824 * r8825;
        double r8827 = r8822 - r8819;
        double r8828 = r8826 * r8827;
        double r8829 = sqrt(r8828);
        return r8829;
}