Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:42:51 2012

Optimize a model with 10727 rows, 5256 columns and 37078 nonzeros
Presolve removed 1874 rows and 2 columns
Presolve time: 0.45s
Presolved: 8853 rows, 5254 columns, 32224 nonzeros
Variable types: 0 continuous, 5254 integer (5254 binary)
Found heuristic solution: objective 72.0000000

Root relaxation: objective 3.000000e+00, 7347 iterations, 1.31 seconds
Total elapsed time = 5.27s

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

     0     0    3.00000    0   58   72.00000    3.00000  95.8%     -    7s
H    0     0                       8.0000000    3.00000  62.5%     -    7s
H    0     0                       5.0000000    3.00000  40.0%     -    7s
     0     0    3.00000    0  106    5.00000    3.00000  40.0%     -    8s
H    0     0                       4.0000000    3.00000  25.0%     -    8s
H    0     0                       3.0000000    3.00000   0.0%     -    8s

Cutting planes:
  Gomory: 3
  Zero half: 3

Explored 0 nodes (36518 simplex iterations) in 8.07 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%