Gurobi 5.6.3 (linux64) logging started Wed Oct  8 00:06:06 2014

Optimize a model with 24493 rows, 24492 columns and 73164 nonzeros
Presolve time: 0.59s
Presolved: 24493 rows, 24492 columns, 73164 nonzeros
Variable types: 0 continuous, 24492 integer (24492 binary)
Found heuristic solution: objective 19.4806535

Root relaxation: objective 1.223998e+01, 1923 iterations, 0.16 seconds

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

*    0     0               0      12.2399777   12.23998  0.00%     -    0s

Explored 0 nodes (1923 simplex iterations) in 0.82 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.223997773866e+01, best bound 1.223997773866e+01, gap 0.0%