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 r5527 = a;
        double r5528 = b;
        double r5529 = r5527 + r5528;
        double r5530 = c;
        double r5531 = r5529 + r5530;
        double r5532 = 2.0;
        double r5533 = r5531 / r5532;
        double r5534 = r5533 - r5527;
        double r5535 = r5533 * r5534;
        double r5536 = r5533 - r5528;
        double r5537 = r5535 * r5536;
        double r5538 = r5533 - r5530;
        double r5539 = r5537 * r5538;
        double r5540 = sqrt(r5539);
        return r5540;
}