Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:22:12 2012

Optimize a model with 7994 rows, 4290 columns and 27948 nonzeros
Presolve removed 1172 rows and 2 columns
Presolve time: 0.27s
Presolved: 6822 rows, 4288 columns, 24878 nonzeros
Variable types: 0 continuous, 4288 integer (4288 binary)
Found heuristic solution: objective 65.0000000

Root relaxation: objective 3.000000e+00, 4956 iterations, 0.62 seconds

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

     0     0    3.00000    0   85   65.00000    3.00000  95.4%     -    3s
H    0     0                       4.0000000    3.00000  25.0%     -    3s
H    0     0                       3.0000000    3.00000   0.0%     -    3s

Explored 0 nodes (19659 simplex iterations) in 3.08 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%