[Help-glpk] Undefined or infeasible solution?

[Rémy Roy]

Hello,

I've been trying different solvers for my mixed integer programming
problems. For a specific problem (LP file:
http://pastebin.com/3tih0fqg), I get a INTEGER UNDEFINED status with
GLPK. However, I believe the correct status should be no integer
feasible solution which is what I get when I use CBC from COIN-OR.

The solution output file for this problem is:

Problem:    
Rows:       47
Columns:    1345 (1344 integer, 1344 binary)
Non-zeros:  1633
Status:     INTEGER UNDEFINED
Objective:  OBJ = 0 (MINimum)

Any clue as to why GLPK is returning an undefined status instead of an
infeasible one for this problem?

I'm using GLPK version 4.52.1 . I've also got the output from it
(http://pastebin.com/ysQiktir).

Regards,