Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:27:44 2012

Optimize a model with 8049 rows, 4970 columns and 28768 nonzeros
Presolve removed 562 rows and 2 columns
Presolve time: 0.29s
Presolved: 7487 rows, 4968 columns, 27154 nonzeros
Variable types: 0 continuous, 4968 integer (4968 binary)
Found heuristic solution: objective 70.0000000

Root relaxation: objective 3.000000e+00, 4887 iterations, 0.34 seconds

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

     0     0    3.00000    0  286   70.00000    3.00000  95.7%     -    2s
H    0     0                      69.0000000    3.00000  95.7%     -    2s
H    0     0                       8.0000000    3.00000  62.5%     -    2s
*    0     0               0       3.0000000    3.00000   0.0%     -    2s

Cutting planes:
  Gomory: 3
  Zero half: 12

Explored 0 nodes (20466 simplex iterations) in 2.49 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%