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 r1577131 = a;
        double r1577132 = b;
        double r1577133 = r1577131 + r1577132;
        double r1577134 = c;
        double r1577135 = r1577133 + r1577134;
        double r1577136 = 2.0;
        double r1577137 = r1577135 / r1577136;
        double r1577138 = r1577137 - r1577131;
        double r1577139 = r1577137 * r1577138;
        double r1577140 = r1577137 - r1577132;
        double r1577141 = r1577139 * r1577140;
        double r1577142 = r1577137 - r1577134;
        double r1577143 = r1577141 * r1577142;
        double r1577144 = sqrt(r1577143);
        return r1577144;
}