Gurobi 5.6.3 (linux64) logging started Wed Oct  8 02:01:52 2014

Optimize a model with 37057 rows, 37056 columns and 110784 nonzeros
Presolve time: 1.09s
Presolved: 37057 rows, 37056 columns, 110784 nonzeros
Variable types: 0 continuous, 37056 integer (37056 binary)
Found heuristic solution: objective 20.8077615

Root relaxation: objective 1.375582e+01, 2356 iterations, 0.29 seconds

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

*    0     0               0      13.7558153   13.75582  0.00%     -    1s

Explored 0 nodes (2356 simplex iterations) in 1.47 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.375581533093e+01, best bound 1.375581533093e+01, gap 0.0%