Cannot sample enough valid points. (more)

\[0.0 \lt a \lt b + c \land 0.0 \lt b \lt a + c \land 0.0 \lt c \lt a + b\]
\[\sqrt{\left(\left(\frac{\left(a + b\right) + c}{2} \cdot \left(\frac{\left(a + b\right) + c}{2} - a\right)\right) \cdot \left(\frac{\left(a + b\right) + c}{2} - b\right)\right) \cdot \left(\frac{\left(a + b\right) + c}{2} - c\right)}\]
\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 r147860 = a;
        double r147861 = b;
        double r147862 = r147860 + r147861;
        double r147863 = c;
        double r147864 = r147862 + r147863;
        double r147865 = 2.0;
        double r147866 = r147864 / r147865;
        double r147867 = r147866 - r147860;
        double r147868 = r147866 * r147867;
        double r147869 = r147866 - r147861;
        double r147870 = r147868 * r147869;
        double r147871 = r147866 - r147863;
        double r147872 = r147870 * r147871;
        double r147873 = sqrt(r147872);
        return r147873;
}