Gurobi 5.6.3 (linux64) logging started Wed Oct  8 03:10:16 2014

Optimize a model with 43473 rows, 43472 columns and 130000 nonzeros
Presolve time: 1.09s
Presolved: 43473 rows, 43472 columns, 130000 nonzeros
Variable types: 0 continuous, 43472 integer (43472 binary)
Found heuristic solution: objective 22.2785479

Root relaxation: objective 1.477180e+01, 2651 iterations, 0.38 seconds

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

*    0     0               0      14.7718035   14.77180  0.00%     -    1s

Explored 0 nodes (2651 simplex iterations) in 1.58 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.477180347176e+01, best bound 1.477180347176e+01, gap 0.0%