Gurobi 5.6.3 (linux64) logging started Wed Oct  8 04:35:40 2014

Optimize a model with 50851 rows, 50850 columns and 152100 nonzeros
Presolve time: 1.37s
Presolved: 50851 rows, 50850 columns, 152100 nonzeros
Variable types: 0 continuous, 50850 integer (50850 binary)
Found heuristic solution: objective 23.9346785

Root relaxation: objective 1.497311e+01, 2815 iterations, 0.42 seconds

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

*    0     0               0      14.9731098   14.97311  0.00%     -    1s

Explored 0 nodes (2815 simplex iterations) in 1.93 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.497310979684e+01, best bound 1.497310979684e+01, gap 0.0%