Gurobi 5.0.1 (linux64) logging started Fri Nov 16 03:55:11 2012

Optimize a model with 5498 rows, 2256 columns and 18516 nonzeros
Presolve removed 989 rows and 2 columns
Presolve time: 0.13s
Presolved: 4509 rows, 2254 columns, 15927 nonzeros
Variable types: 0 continuous, 2254 integer (2254 binary)
Found heuristic solution: objective 46.0000000

Root relaxation: objective 3.000000e+00, 3750 iterations, 0.35 seconds

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

     0     0    3.00000    0  102   46.00000    3.00000  93.5%     -    1s
H    0     0                       4.0000000    3.00000  25.0%     -    1s
H    0     0                       3.0000000    3.00000   0.0%     -    1s

Explored 0 nodes (11596 simplex iterations) in 1.22 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%