GAMS phases and output generated

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When asked to run, GAMS passes through a program file several times.  The main passes it makes are the

Compilation phase where the LST file is written containing an echo print of the source file possibly containing error messages, along with lists of GAMS objects, and cross reference maps.
Execution phase where output containing displays and execution error messages is added to the LST file.
Generation phase where output containing listings of equations and variables along with generation execution error messages is added to the LST file.
Solution phase where an external solver program deals with the model and creates output relative to the solution process is added to the LST file.
Post solution phase where output on the model solution and other user created displays is added to the LST file.