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 r5809 = a;
        double r5810 = b;
        double r5811 = r5809 + r5810;
        double r5812 = c;
        double r5813 = r5811 + r5812;
        double r5814 = 2.0;
        double r5815 = r5813 / r5814;
        double r5816 = r5815 - r5809;
        double r5817 = r5815 * r5816;
        double r5818 = r5815 - r5810;
        double r5819 = r5817 * r5818;
        double r5820 = r5815 - r5812;
        double r5821 = r5819 * r5820;
        double r5822 = sqrt(r5821);
        return r5822;
}