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 r12582 = a;
        double r12583 = b;
        double r12584 = r12582 + r12583;
        double r12585 = c;
        double r12586 = r12584 + r12585;
        double r12587 = 2.0;
        double r12588 = r12586 / r12587;
        double r12589 = r12588 - r12582;
        double r12590 = r12588 * r12589;
        double r12591 = r12588 - r12583;
        double r12592 = r12590 * r12591;
        double r12593 = r12588 - r12585;
        double r12594 = r12592 * r12593;
        double r12595 = sqrt(r12594);
        return r12595;
}