Cannot sample enough valid points. (more)

\[0 \lt a \land 0 \lt b \land 0 \lt c\]
\[\sqrt{\left(\left(\frac{\left(a + b\right) + c}{2} \cdot \left(\frac{\left(a + b\right) + c}{2} - a\right)\right) \cdot \left(\frac{\left(a + b\right) + c}{2} - b\right)\right) \cdot \left(\frac{\left(a + b\right) + c}{2} - c\right)}\]
\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 r8057 = a;
        double r8058 = b;
        double r8059 = r8057 + r8058;
        double r8060 = c;
        double r8061 = r8059 + r8060;
        double r8062 = 2.0;
        double r8063 = r8061 / r8062;
        double r8064 = r8063 - r8057;
        double r8065 = r8063 * r8064;
        double r8066 = r8063 - r8058;
        double r8067 = r8065 * r8066;
        double r8068 = r8063 - r8060;
        double r8069 = r8067 * r8068;
        double r8070 = sqrt(r8069);
        return r8070;
}