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 r940387 = a;
        double r940388 = b;
        double r940389 = r940387 + r940388;
        double r940390 = c;
        double r940391 = r940389 + r940390;
        double r940392 = 2.0;
        double r940393 = r940391 / r940392;
        double r940394 = r940393 - r940387;
        double r940395 = r940393 * r940394;
        double r940396 = r940393 - r940388;
        double r940397 = r940395 * r940396;
        double r940398 = r940393 - r940390;
        double r940399 = r940397 * r940398;
        double r940400 = sqrt(r940399);
        return r940400;
}