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 r12207 = a;
        double r12208 = b;
        double r12209 = r12207 + r12208;
        double r12210 = c;
        double r12211 = r12209 + r12210;
        double r12212 = 2.0;
        double r12213 = r12211 / r12212;
        double r12214 = r12213 - r12207;
        double r12215 = r12213 * r12214;
        double r12216 = r12213 - r12208;
        double r12217 = r12215 * r12216;
        double r12218 = r12213 - r12210;
        double r12219 = r12217 * r12218;
        double r12220 = sqrt(r12219);
        return r12220;
}