Gurobi 5.6.3 (linux64) logging started Tue Oct  7 23:52:01 2014

Optimize a model with 22651 rows, 22650 columns and 67650 nonzeros
Presolve time: 0.48s
Presolved: 22651 rows, 22650 columns, 67650 nonzeros
Variable types: 0 continuous, 22650 integer (22650 binary)
Found heuristic solution: objective 19.9605835

Root relaxation: objective 1.267468e+01, 1912 iterations, 0.18 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

*    0     0               0      12.6746775   12.67468  0.00%     -    0s

Explored 0 nodes (1912 simplex iterations) in 0.71 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.267467745755e+01, best bound 1.267467745755e+01, gap 0.0%