Gurobi 5.6.3 (linux64) logging started Wed Oct  8 02:13:12 2014

Optimize a model with 38221 rows, 38220 columns and 114270 nonzeros
Presolve time: 1.05s
Presolved: 38221 rows, 38220 columns, 114270 nonzeros
Variable types: 0 continuous, 38220 integer (38220 binary)
Found heuristic solution: objective 25.7730343

Root relaxation: objective 1.428524e+01, 2352 iterations, 0.28 seconds

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

*    0     0               0      14.2852416   14.28524  0.00%     -    1s

Explored 0 nodes (2352 simplex iterations) in 1.43 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.428524155759e+01, best bound 1.428524155759e+01, gap 0.0%