Cannot sample enough valid points. (more)

\[0 \lt a \lt b + c \land 0 \lt b \lt a + c \land 0 \lt c \lt a + b\]
\[\sqrt{\left(\left(\frac{\left(a + b\right) + c}{2} \cdot \left(\frac{\left(a + b\right) + c}{2} - a\right)\right) \cdot \left(\frac{\left(a + b\right) + c}{2} - b\right)\right) \cdot \left(\frac{\left(a + b\right) + c}{2} - c\right)}\]
\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 r3691470 = a;
        double r3691471 = b;
        double r3691472 = r3691470 + r3691471;
        double r3691473 = c;
        double r3691474 = r3691472 + r3691473;
        double r3691475 = 2.0;
        double r3691476 = r3691474 / r3691475;
        double r3691477 = r3691476 - r3691470;
        double r3691478 = r3691476 * r3691477;
        double r3691479 = r3691476 - r3691471;
        double r3691480 = r3691478 * r3691479;
        double r3691481 = r3691476 - r3691473;
        double r3691482 = r3691480 * r3691481;
        double r3691483 = sqrt(r3691482);
        return r3691483;
}