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 r527867 = a;
        double r527868 = b;
        double r527869 = r527867 + r527868;
        double r527870 = c;
        double r527871 = r527869 + r527870;
        double r527872 = 2.0;
        double r527873 = r527871 / r527872;
        double r527874 = r527873 - r527867;
        double r527875 = r527873 * r527874;
        double r527876 = r527873 - r527868;
        double r527877 = r527875 * r527876;
        double r527878 = r527873 - r527870;
        double r527879 = r527877 * r527878;
        double r527880 = sqrt(r527879);
        return r527880;
}