[Cbc] mipstart

[Yves Touchard]

Hello,

Just a simple question (surely stupid...).
The solver generates an integer solution file from a very basic constraint file.
Then I re-compile the same constraint file with the previous solution file as mipsart argument. And cbc claims:

[...]
will open mipstart file ./bug_gen.sol.
mipstart values read for 3 variables.
[...]
Cbc0045I Warning: mipstart values could not be used to build a solution.
Cbc0045I Trying just fixing integer variables.
Cbc0045I mipstart provided solution with cost 127.464
[..]

What does mean the warning?
Is there something i miss.

Thanks

Yves


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