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 r8164 = a;
        double r8165 = b;
        double r8166 = r8164 + r8165;
        double r8167 = c;
        double r8168 = r8166 + r8167;
        double r8169 = 2.0;
        double r8170 = r8168 / r8169;
        double r8171 = r8170 - r8164;
        double r8172 = r8170 * r8171;
        double r8173 = r8170 - r8165;
        double r8174 = r8172 * r8173;
        double r8175 = r8170 - r8167;
        double r8176 = r8174 * r8175;
        double r8177 = sqrt(r8176);
        return r8177;
}