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 r15734 = a;
        double r15735 = b;
        double r15736 = r15734 + r15735;
        double r15737 = c;
        double r15738 = r15736 + r15737;
        double r15739 = 2.0;
        double r15740 = r15738 / r15739;
        double r15741 = r15740 - r15734;
        double r15742 = r15740 * r15741;
        double r15743 = r15740 - r15735;
        double r15744 = r15742 * r15743;
        double r15745 = r15740 - r15737;
        double r15746 = r15744 * r15745;
        double r15747 = sqrt(r15746);
        return r15747;
}