Gurobi 5.0.1 (linux64) logging started Fri Nov 16 16:04:14 2012

Optimize a model with 8953 rows, 5550 columns and 32040 nonzeros
Presolve removed 596 rows and 150 columns
Presolve time: 0.36s
Presolved: 8357 rows, 5400 columns, 30186 nonzeros
Variable types: 0 continuous, 5400 integer (5400 binary)
Found heuristic solution: objective 74.0000000

Root relaxation: objective 3.000000e+00, 5951 iterations, 0.54 seconds

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

     0     0    3.00000    0  235   74.00000    3.00000  95.9%     -    3s
H    0     0                      54.0000000    3.00000  94.4%     -    3s
H    0     0                       5.0000000    3.00000  40.0%     -    3s
H    0     0                       4.0000000    3.00000  25.0%     -    3s
     0     0    3.00000    0  172    4.00000    3.00000  25.0%     -    4s
H    0     0                       3.0000000    3.00000   0.0%     -    4s

Cutting planes:
  Gomory: 2
  Zero half: 4

Explored 0 nodes (27361 simplex iterations) in 4.47 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%