"All variables fixed;" problem

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benders.run (716 Bytes)
benders.mod (654 Bytes)
I have the following code for implementing bender’s decomposition. When I run the code I the loop doesn’t function properly as it seems the variables are fixed for some reason that I am not aware of. Please let me know how I should proceed with debugging.

Thank you.
benders.mod (654 Bytes)
benders.run (715 Bytes)

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The problem is solved now. The fixed variable problem occurs because the variables of each problem instance was not defined together with the eqautions.

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