Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:42:45 2012

Optimize a model with 3640 rows, 8372 columns and 18928 nonzeros
Presolve removed 222 rows and 3640 columns
Presolve time: 0.12s
Presolved: 3418 rows, 4732 columns, 14833 nonzeros
Variable types: 0 continuous, 4732 integer (4732 binary)
Found heuristic solution: objective 18.0000000
Found heuristic solution: objective 3.0000000

Root relaxation: cutoff, 4443 iterations, 0.11 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 (4443 simplex iterations) in 0.23 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%