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 r4463 = a;
        double r4464 = b;
        double r4465 = r4463 + r4464;
        double r4466 = c;
        double r4467 = r4465 + r4466;
        double r4468 = 2.0;
        double r4469 = r4467 / r4468;
        double r4470 = r4469 - r4463;
        double r4471 = r4469 * r4470;
        double r4472 = r4469 - r4464;
        double r4473 = r4471 * r4472;
        double r4474 = r4469 - r4466;
        double r4475 = r4473 * r4474;
        double r4476 = sqrt(r4475);
        return r4476;
}