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 r16165 = a;
        double r16166 = b;
        double r16167 = r16165 + r16166;
        double r16168 = c;
        double r16169 = r16167 + r16168;
        double r16170 = 2.0;
        double r16171 = r16169 / r16170;
        double r16172 = r16171 - r16165;
        double r16173 = r16171 * r16172;
        double r16174 = r16171 - r16166;
        double r16175 = r16173 * r16174;
        double r16176 = r16171 - r16168;
        double r16177 = r16175 * r16176;
        double r16178 = sqrt(r16177);
        return r16178;
}