Use the --timeout flag to change the timeout.
\lambda_1 + \tan^{-1}_* \frac{\left(\sin theta \cdot \sin delta\right) \cdot \cos \phi_1}{\cos delta - \sin \phi_1 \cdot \sin \left(\sin^{-1} \left(\sin \phi_1 \cdot \cos delta + \left(\cos \phi_1 \cdot \sin delta\right) \cdot \cos theta\right)\right)}double f(double lambda1, double phi1, double __attribute__((unused)) phi2, double delta, double theta) {
double r2723205 = lambda1;
double r2723206 = theta;
double r2723207 = sin(r2723206);
double r2723208 = delta;
double r2723209 = sin(r2723208);
double r2723210 = r2723207 * r2723209;
double r2723211 = phi1;
double r2723212 = cos(r2723211);
double r2723213 = r2723210 * r2723212;
double r2723214 = cos(r2723208);
double r2723215 = sin(r2723211);
double r2723216 = r2723215 * r2723214;
double r2723217 = r2723212 * r2723209;
double r2723218 = cos(r2723206);
double r2723219 = r2723217 * r2723218;
double r2723220 = r2723216 + r2723219;
double r2723221 = asin(r2723220);
double r2723222 = sin(r2723221);
double r2723223 = r2723215 * r2723222;
double r2723224 = r2723214 - r2723223;
double r2723225 = atan2(r2723213, r2723224);
double r2723226 = r2723205 + r2723225;
return r2723226;
}
herbie shell --seed 2019142
(FPCore (lambda1 phi1 phi2 delta theta)
:name "Destination given bearing on a great circle"
(+ lambda1 (atan2 (* (* (sin theta) (sin delta)) (cos phi1)) (- (cos delta) (* (sin phi1) (sin (asin (+ (* (sin phi1) (cos delta)) (* (* (cos phi1) (sin delta)) (cos theta))))))))))