Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:15:47 2012

Optimize a model with 4806 rows, 2970 columns and 17172 nonzeros
Presolve removed 540 rows and 0 columns
Presolve time: 0.11s
Presolved: 4266 rows, 2970 columns, 15822 nonzeros
Variable types: 0 continuous, 2970 integer (2970 binary)
Found heuristic solution: objective 31.0000000
Found heuristic solution: objective 3.0000000

Root relaxation: cutoff, 3931 iterations, 0.15 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 (3931 simplex iterations) in 0.27 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%