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 r12533 = a;
        double r12534 = b;
        double r12535 = r12533 + r12534;
        double r12536 = c;
        double r12537 = r12535 + r12536;
        double r12538 = 2.0;
        double r12539 = r12537 / r12538;
        double r12540 = r12539 - r12533;
        double r12541 = r12539 * r12540;
        double r12542 = r12539 - r12534;
        double r12543 = r12541 * r12542;
        double r12544 = r12539 - r12536;
        double r12545 = r12543 * r12544;
        double r12546 = sqrt(r12545);
        return r12546;
}