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 r2587 = a;
        double r2588 = b;
        double r2589 = r2587 + r2588;
        double r2590 = c;
        double r2591 = r2589 + r2590;
        double r2592 = 2.0;
        double r2593 = r2591 / r2592;
        double r2594 = r2593 - r2587;
        double r2595 = r2593 * r2594;
        double r2596 = r2593 - r2588;
        double r2597 = r2595 * r2596;
        double r2598 = r2593 - r2590;
        double r2599 = r2597 * r2598;
        double r2600 = sqrt(r2599);
        return r2600;
}