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 r20341 = a;
        double r20342 = b;
        double r20343 = r20341 + r20342;
        double r20344 = c;
        double r20345 = r20343 + r20344;
        double r20346 = 2.0;
        double r20347 = r20345 / r20346;
        double r20348 = r20347 - r20341;
        double r20349 = r20347 * r20348;
        double r20350 = r20347 - r20342;
        double r20351 = r20349 * r20350;
        double r20352 = r20347 - r20344;
        double r20353 = r20351 * r20352;
        double r20354 = sqrt(r20353);
        return r20354;
}