\[ y'(x)=\frac {(-\text {Ci}(x)+y(x)-\log (x))^2+\cos (x)}{x} \] ✓ Mathematica : cpu = 0.492351 (sec), leaf count = 27
\[\left \{\left \{y(x)\to \text {Ci}(x)+\frac {x^2}{-\frac {x^2}{2}+c_1}+\log (x)+1\right \}\right \}\] ✓ Maple : cpu = 0.299 (sec), leaf count = 27
\[y \relax (x ) = \ln \relax (x )+\Ci \relax (x )+\frac {-c_{1} x^{2}+1}{c_{1} x^{2}+1}\]