Gurobi 5.6.3 (linux64) logging started Wed Oct  8 02:38:56 2014

Optimize a model with 40603 rows, 40602 columns and 121404 nonzeros
Presolve time: 1.04s
Presolved: 40603 rows, 40602 columns, 121404 nonzeros
Variable types: 0 continuous, 40602 integer (40602 binary)
Found heuristic solution: objective 19.7507173

Root relaxation: objective 1.427996e+01, 2734 iterations, 0.39 seconds

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

*    0     0               0      14.2799601   14.27996  0.00%     -    1s

Explored 0 nodes (2734 simplex iterations) in 1.54 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.427996014023e+01, best bound 1.427996014023e+01, gap 0.0%