Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:11:39 2012

Optimize a model with 13366 rows, 6806 columns and 46576 nonzeros
Presolve removed 2381 rows and 246 columns
Presolve time: 0.29s
Presolved: 10985 rows, 6560 columns, 40590 nonzeros
Variable types: 0 continuous, 6560 integer (6560 binary)
Found heuristic solution: objective 50.0000000

Root relaxation: objective 3.000000e+00, 11274 iterations, 1.95 seconds
Total elapsed time = 5.05s

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

     0     0    3.00000    0   28   50.00000    3.00000  94.0%     -    5s
H    0     0                       4.0000000    3.00000  25.0%     -    5s
H    0     0                       3.0000000    3.00000   0.0%     -    5s

Explored 0 nodes (29280 simplex iterations) in 5.16 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%