Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:51:16 2012

Optimize a model with 10658 rows, 5402 columns and 37084 nonzeros
Presolve removed 1024 rows and 146 columns
Presolve time: 0.21s
Presolved: 9634 rows, 5256 columns, 34456 nonzeros
Variable types: 0 continuous, 5256 integer (5256 binary)
Found heuristic solution: objective 40.0000000

Root relaxation: objective 3.000000e+00, 8370 iterations, 0.78 seconds

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

     0     0    3.00000    0   95   40.00000    3.00000  92.5%     -    3s
H    0     0                       4.0000000    3.00000  25.0%     -    3s
H    0     0                       3.0000000    3.00000   0.0%     -    3s

Explored 0 nodes (26789 simplex iterations) in 3.21 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%