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 r12199 = a;
        double r12200 = b;
        double r12201 = r12199 + r12200;
        double r12202 = c;
        double r12203 = r12201 + r12202;
        double r12204 = 2.0;
        double r12205 = r12203 / r12204;
        double r12206 = r12205 - r12199;
        double r12207 = r12205 * r12206;
        double r12208 = r12205 - r12200;
        double r12209 = r12207 * r12208;
        double r12210 = r12205 - r12202;
        double r12211 = r12209 * r12210;
        double r12212 = sqrt(r12211);
        return r12212;
}