Gurobi 5.6.3 (linux64) logging started Wed Oct  8 07:19:11 2014

Optimize a model with 62251 rows, 62250 columns and 186252 nonzeros
Presolve time: 1.65s
Presolved: 62251 rows, 62250 columns, 186252 nonzeros
Variable types: 0 continuous, 62250 integer (62250 binary)
Found heuristic solution: objective 24.3793886

Root relaxation: objective 1.600888e+01, 3317 iterations, 0.60 seconds

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

*    0     0               0      16.0088799   16.00888  0.00%     -    2s

Explored 0 nodes (3317 simplex iterations) in 2.41 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.600887986588e+01, best bound 1.600887986588e+01, gap 0.0%