       <ul>
               <li>[optional] <b>box constraints treatment</b>, by default a penalty/barrier function is used to include box constraints into the Augmented Lagrangian which might cause
                  that the variables are feasible only up to the given tolerance (see option settings). Alternatively, it is possible to apply
                  barrier function to all or some of them instead and achieve strict feasibility. To do so, it is necessary to name all such
                  box constrain