Cannot sample enough valid points. (more)

\[0 \lt a \land 0 \lt b \land 0 \lt c\]
\[\sqrt{\left(\left(\frac{\left(a + b\right) + c}{2} \cdot \left(\frac{\left(a + b\right) + c}{2} - a\right)\right) \cdot \left(\frac{\left(a + b\right) + c}{2} - b\right)\right) \cdot \left(\frac{\left(a + b\right) + c}{2} - c\right)}\]
\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 r281290 = a;
        double r281291 = b;
        double r281292 = r281290 + r281291;
        double r281293 = c;
        double r281294 = r281292 + r281293;
        double r281295 = 2.0;
        double r281296 = r281294 / r281295;
        double r281297 = r281296 - r281290;
        double r281298 = r281296 * r281297;
        double r281299 = r281296 - r281291;
        double r281300 = r281298 * r281299;
        double r281301 = r281296 - r281293;
        double r281302 = r281300 * r281301;
        double r281303 = sqrt(r281302);
        return r281303;
}