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 r28268 = a;
        double r28269 = b;
        double r28270 = r28268 + r28269;
        double r28271 = c;
        double r28272 = r28270 + r28271;
        double r28273 = 2.0;
        double r28274 = r28272 / r28273;
        double r28275 = r28274 - r28268;
        double r28276 = r28274 * r28275;
        double r28277 = r28274 - r28269;
        double r28278 = r28276 * r28277;
        double r28279 = r28274 - r28271;
        double r28280 = r28278 * r28279;
        double r28281 = sqrt(r28280);
        return r28281;
}