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 r81944 = a;
        double r81945 = b;
        double r81946 = r81944 + r81945;
        double r81947 = c;
        double r81948 = r81946 + r81947;
        double r81949 = 2.0;
        double r81950 = r81948 / r81949;
        double r81951 = r81950 - r81944;
        double r81952 = r81950 * r81951;
        double r81953 = r81950 - r81945;
        double r81954 = r81952 * r81953;
        double r81955 = r81950 - r81947;
        double r81956 = r81954 * r81955;
        double r81957 = sqrt(r81956);
        return r81957;
}