Gurobi 5.0.1 (linux64) logging started Fri Nov 16 04:18:10 2012

Optimize a model with 5300 rows, 2550 columns and 18250 nonzeros
Presolve removed 851 rows and 50 columns
Presolve time: 0.12s
Presolved: 4449 rows, 2500 columns, 16150 nonzeros
Variable types: 0 continuous, 2500 integer (2500 binary)
Found heuristic solution: objective 31.0000000
Found heuristic solution: objective 3.0000000

Root relaxation: cutoff, 2788 iterations, 0.16 seconds

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

     0     0     cutoff    0         3.00000    2.00000  33.3%     -    0s

Explored 0 nodes (2788 simplex iterations) in 0.29 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%