Gurobi 5.0.1 (linux64) logging started Fri Nov 16 16:48:55 2012

Optimize a model with 10744 rows, 6320 columns and 38236 nonzeros
Presolve removed 1267 rows and 237 columns
Presolve time: 0.20s
Presolved: 9477 rows, 6083 columns, 34918 nonzeros
Variable types: 0 continuous, 6083 integer (6083 binary)
Found heuristic solution: objective 43.0000000

Root relaxation: objective 3.000000e+00, 8196 iterations, 0.82 seconds

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

     0     0    3.00000    0  114   43.00000    3.00000  93.0%     -    3s
H    0     0                       4.0000000    3.00000  25.0%     -    3s
H    0     0                       3.0000000    3.00000   0.0%     -    3s

Explored 0 nodes (21874 simplex iterations) in 3.23 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%