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 r19358 = a;
        double r19359 = b;
        double r19360 = r19358 + r19359;
        double r19361 = c;
        double r19362 = r19360 + r19361;
        double r19363 = 2.0;
        double r19364 = r19362 / r19363;
        double r19365 = r19364 - r19358;
        double r19366 = r19364 * r19365;
        double r19367 = r19364 - r19359;
        double r19368 = r19366 * r19367;
        double r19369 = r19364 - r19361;
        double r19370 = r19368 * r19369;
        double r19371 = sqrt(r19370);
        return r19371;
}