Gurobi 5.6.3 (linux64) logging started Wed Oct  8 02:21:35 2014

Optimize a model with 39007 rows, 39006 columns and 116624 nonzeros
Presolve time: 0.97s
Presolved: 39007 rows, 39006 columns, 116624 nonzeros
Variable types: 0 continuous, 39006 integer (39006 binary)
Found heuristic solution: objective 20.1793024

Root relaxation: objective 1.457435e+01, 2660 iterations, 0.33 seconds

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

*    0     0               0      14.5743499   14.57435  0.00%     -    1s

Explored 0 nodes (2660 simplex iterations) in 1.41 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.457434986003e+01, best bound 1.457434986003e+01, gap 0.0%