Gurobi 5.0.1 (linux64) logging started Fri Nov 16 03:52:16 2012

Optimize a model with 4606 rows, 2256 columns and 15886 nonzeros
Presolve removed 1222 rows and 0 columns
Presolve time: 0.10s
Presolved: 3384 rows, 2256 columns, 12925 nonzeros
Variable types: 0 continuous, 2256 integer (2256 binary)
Found heuristic solution: objective 25.0000000

Root relaxation: objective 3.000000e+00, 3981 iterations, 0.30 seconds

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

     0     0    3.00000    0   20   25.00000    3.00000  88.0%     -    0s
H    0     0                       3.0000000    3.00000   0.0%     -    0s

Explored 0 nodes (8257 simplex iterations) in 0.69 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%