"(MODCOMP12) %a %j %j %j %j\nYou cannot use both %1p and %2p as model dimensions, because %3p is a surrogate of %4p."
*Cause: The user attempted to include both a dimension and its surrogate in
the DIMENSION statement of a model.
*Action: Use either the dimension or the surrogate in the DIMENSION
statement of the model, but not both.