\[ y'(x)=\frac {(-\text {Ci}(x)+y(x)-\log (x))^2+\cos (x)}{x} \] ✓ Mathematica : cpu = 0.476039 (sec), leaf count = 26
\[\left \{\left \{y(x)\to -\frac {2 x^2}{x^2-2 c_1}+\text {Ci}(x)+\log (x)+1\right \}\right \}\]
✓ Maple : cpu = 0.43 (sec), leaf count = 27
\[ \left \{ y \left ( x \right ) =\ln \left ( x \right ) +{\it Ci} \left ( x \right ) +{\frac {-{\it \_C1}\,{x}^{2}+1}{{\it \_C1}\,{x}^{2}+1}} \right \} \]