Gurobi 5.0.1 (linux64) logging started Fri Nov 16 16:11:30 2012

Optimize a model with 8879 rows, 5550 columns and 31818 nonzeros
Presolve removed 742 rows and 2 columns
Presolve time: 0.36s
Presolved: 8211 rows, 5548 columns, 35372 nonzeros
Variable types: 0 continuous, 5548 integer (5548 binary)
Found heuristic solution: objective 74.0000000

Root relaxation: objective 3.000000e+00, 6373 iterations, 0.67 seconds

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

     0     0    3.00000    0   66   74.00000    3.00000  95.9%     -    3s
H    0     0                       4.0000000    3.00000  25.0%     -    3s
H    0     0                       3.0000000    3.00000   0.0%     -    3s

Explored 0 nodes (26036 simplex iterations) in 3.75 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%