Gurobi 5.6.3 (linux64) logging started Wed Oct  8 00:27:54 2014

Optimize a model with 27061 rows, 27060 columns and 80852 nonzeros
Presolve time: 0.62s
Presolved: 27061 rows, 27060 columns, 80852 nonzeros
Variable types: 0 continuous, 27060 integer (27060 binary)
Found heuristic solution: objective 21.9896380

Root relaxation: objective 1.262404e+01, 1827 iterations, 0.17 seconds

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

*    0     0               0      12.6240446   12.62404  0.00%     -    0s

Explored 0 nodes (1827 simplex iterations) in 0.85 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.262404457228e+01, best bound 1.262404457228e+01, gap 0.0%