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 r1041820 = a;
        double r1041821 = b;
        double r1041822 = r1041820 + r1041821;
        double r1041823 = c;
        double r1041824 = r1041822 + r1041823;
        double r1041825 = 2.0;
        double r1041826 = r1041824 / r1041825;
        double r1041827 = r1041826 - r1041820;
        double r1041828 = r1041826 * r1041827;
        double r1041829 = r1041826 - r1041821;
        double r1041830 = r1041828 * r1041829;
        double r1041831 = r1041826 - r1041823;
        double r1041832 = r1041830 * r1041831;
        double r1041833 = sqrt(r1041832);
        return r1041833;
}