Cannot sample enough valid points. (more)

\[0.0 \lt a \land 0.0 \lt b \land 0.0 \lt c\]
\[\sqrt{\left(\left(\frac{\left(a + b\right) + c}{2} \cdot \left(\frac{\left(a + b\right) + c}{2} - a\right)\right) \cdot \left(\frac{\left(a + b\right) + c}{2} - b\right)\right) \cdot \left(\frac{\left(a + b\right) + c}{2} - c\right)}\]
\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 r172022 = a;
        double r172023 = b;
        double r172024 = r172022 + r172023;
        double r172025 = c;
        double r172026 = r172024 + r172025;
        double r172027 = 2.0;
        double r172028 = r172026 / r172027;
        double r172029 = r172028 - r172022;
        double r172030 = r172028 * r172029;
        double r172031 = r172028 - r172023;
        double r172032 = r172030 * r172031;
        double r172033 = r172028 - r172025;
        double r172034 = r172032 * r172033;
        double r172035 = sqrt(r172034);
        return r172035;
}