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 r2929533 = lambda1;
double r2929534 = theta;
double r2929535 = sin(r2929534);
double r2929536 = delta;
double r2929537 = sin(r2929536);
double r2929538 = r2929535 * r2929537;
double r2929539 = phi1;
double r2929540 = cos(r2929539);
double r2929541 = r2929538 * r2929540;
double r2929542 = cos(r2929536);
double r2929543 = sin(r2929539);
double r2929544 = r2929543 * r2929542;
double r2929545 = r2929540 * r2929537;
double r2929546 = cos(r2929534);
double r2929547 = r2929545 * r2929546;
double r2929548 = r2929544 + r2929547;
double r2929549 = asin(r2929548);
double r2929550 = sin(r2929549);
double r2929551 = r2929543 * r2929550;
double r2929552 = r2929542 - r2929551;
double r2929553 = atan2(r2929541, r2929552);
double r2929554 = r2929533 + r2929553;
return r2929554;
}
herbie shell --seed 2019138
(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))))))))))