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 r81821 = a;
        double r81822 = b;
        double r81823 = r81821 + r81822;
        double r81824 = c;
        double r81825 = r81823 + r81824;
        double r81826 = 2.0;
        double r81827 = r81825 / r81826;
        double r81828 = r81827 - r81821;
        double r81829 = r81827 * r81828;
        double r81830 = r81827 - r81822;
        double r81831 = r81829 * r81830;
        double r81832 = r81827 - r81824;
        double r81833 = r81831 * r81832;
        double r81834 = sqrt(r81833);
        return r81834;
}