Gurobi 5.0.1 (linux64) logging started Fri Nov 16 03:18:38 2012

Optimize a model with 3772 rows, 1722 columns and 12874 nonzeros
Presolve removed 820 rows and 0 columns
Presolve time: 0.08s
Presolved: 2952 rows, 1722 columns, 10906 nonzeros
Variable types: 0 continuous, 1722 integer (1722 binary)
Found heuristic solution: objective 22.0000000

Root relaxation: objective 3.000000e+00, 3540 iterations, 0.20 seconds

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

     0     0    3.00000    0   24   22.00000    3.00000  86.4%     -    0s
H    0     0                       4.0000000    3.00000  25.0%     -    0s
H    0     0                       3.0000000    3.00000   0.0%     -    0s

Explored 0 nodes (6865 simplex iterations) in 0.46 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%