Cannot sample enough valid points. (more)

\[0 \lt a \land 0 \lt b \land 0 \lt c\]
\[\sqrt{\left(\left(\frac{\left(a + b\right) + c}{2} \cdot \left(\frac{\left(a + b\right) + c}{2} - a\right)\right) \cdot \left(\frac{\left(a + b\right) + c}{2} - b\right)\right) \cdot \left(\frac{\left(a + b\right) + c}{2} - c\right)}\]
\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 r8105 = a;
        double r8106 = b;
        double r8107 = r8105 + r8106;
        double r8108 = c;
        double r8109 = r8107 + r8108;
        double r8110 = 2.0;
        double r8111 = r8109 / r8110;
        double r8112 = r8111 - r8105;
        double r8113 = r8111 * r8112;
        double r8114 = r8111 - r8106;
        double r8115 = r8113 * r8114;
        double r8116 = r8111 - r8108;
        double r8117 = r8115 * r8116;
        double r8118 = sqrt(r8117);
        return r8118;
}