Your model is too large for your version of LINGO. Some versions of LINGO limit one or more of the following model properties: total variables, integer variables, nonlinear variables, and constraints. This error message displays the dimensions of the model and the limits of your version. Refer to this information to determine the specific limit that is being exceeded.

You can also view the limits of your version of LINGO by issuing the Help|About command.

Nonlinear variables are allowed only if you have purchased the nonlinear option for your LINGO system.  If you aren't sure which parts of yout model, you can run the Generate | Display nonlinear rows command to display the rows in the model containing nonlinearities.  It's possible that some or all of the nonlinear rows can be rewritten so that they become linear.

In general, you must either make your model smaller by simplifying it or upgrade to a larger version of LINGO. If you are exceeding the limit on constraints and if you have simple bounds entered as constraints, you should enter them with the @BND function. Constraints entered using @BND don’t count against the constraint limit.

The limits for the various versions of LINGO are: