Timeout in 10.0m

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\[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}\]
\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}
double f(double t, double l, double k) {
        double r14815770 = 2.0;
        double r14815771 = t;
        double r14815772 = 3.0;
        double r14815773 = pow(r14815771, r14815772);
        double r14815774 = l;
        double r14815775 = r14815774 * r14815774;
        double r14815776 = r14815773 / r14815775;
        double r14815777 = k;
        double r14815778 = sin(r14815777);
        double r14815779 = r14815776 * r14815778;
        double r14815780 = tan(r14815777);
        double r14815781 = r14815779 * r14815780;
        double r14815782 = 1.0;
        double r14815783 = r14815777 / r14815771;
        double r14815784 = pow(r14815783, r14815770);
        double r14815785 = r14815782 + r14815784;
        double r14815786 = r14815785 - r14815782;
        double r14815787 = r14815781 * r14815786;
        double r14815788 = r14815770 / r14815787;
        return r14815788;
}

Reproduce

herbie shell --seed 2019153 
(FPCore (t l k)
  :name "Toniolo and Linder, Equation (10-)"
  (/ 2 (* (* (* (/ (pow t 3) (* l l)) (sin k)) (tan k)) (- (+ 1 (pow (/ k t) 2)) 1))))