[Cbc] pb with matrix of constraints

[ycollet at freesurf.fr]

Hello,

Finally, I thinks that the problem comes from my use of SOS constraints.
If I use SOS constraints, I have a problem with the first line
If I don't use constraints, everything is OK.

I will write a new post related to SOS constraints (again).

Sorry for the noise and thanks for your patience.

Yann