[Cbc] CBC doesn't reach the optimal solution

[John Forrest]

Juliette,


I can reproduce bug on stable/2.8.  stable/2.9 and trunk seem OK.

Will find out what the bug is.

John Forrest

On 29/01/15 10:53, Juliette Medina wrote:
> Hi,
>
> I would like to report a bug on the optimal found by CBC.
> When testing my model on various solvers, I discovered that CBC 
> doesn't reach the optimal solution.
>
> CBC finds 1664.1149999999998  whereas the optimal solution is 
> 1552.7400000000002 (with Cplex).
>
> Do you mind giving me a feedback about why it doesn't work properly?
>
> Here the LP model below :
>
> Thanks,
>