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 r2299069 = lambda1;
double r2299070 = theta;
double r2299071 = sin(r2299070);
double r2299072 = delta;
double r2299073 = sin(r2299072);
double r2299074 = r2299071 * r2299073;
double r2299075 = phi1;
double r2299076 = cos(r2299075);
double r2299077 = r2299074 * r2299076;
double r2299078 = cos(r2299072);
double r2299079 = sin(r2299075);
double r2299080 = r2299079 * r2299078;
double r2299081 = r2299076 * r2299073;
double r2299082 = cos(r2299070);
double r2299083 = r2299081 * r2299082;
double r2299084 = r2299080 + r2299083;
double r2299085 = asin(r2299084);
double r2299086 = sin(r2299085);
double r2299087 = r2299079 * r2299086;
double r2299088 = r2299078 - r2299087;
double r2299089 = atan2(r2299077, r2299088);
double r2299090 = r2299069 + r2299089;
return r2299090;
}
herbie shell --seed 2019129
(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))))))))))