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 r3526 = a;
        double r3527 = b;
        double r3528 = r3526 + r3527;
        double r3529 = c;
        double r3530 = r3528 + r3529;
        double r3531 = 2.0;
        double r3532 = r3530 / r3531;
        double r3533 = r3532 - r3526;
        double r3534 = r3532 * r3533;
        double r3535 = r3532 - r3527;
        double r3536 = r3534 * r3535;
        double r3537 = r3532 - r3529;
        double r3538 = r3536 * r3537;
        double r3539 = sqrt(r3538);
        return r3539;
}