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 r63808 = a;
        double r63809 = b;
        double r63810 = r63808 + r63809;
        double r63811 = c;
        double r63812 = r63810 + r63811;
        double r63813 = 2.0;
        double r63814 = r63812 / r63813;
        double r63815 = r63814 - r63808;
        double r63816 = r63814 * r63815;
        double r63817 = r63814 - r63809;
        double r63818 = r63816 * r63817;
        double r63819 = r63814 - r63811;
        double r63820 = r63818 * r63819;
        double r63821 = sqrt(r63820);
        return r63821;
}