Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:40:33 2012

Optimize a model with 3910 rows, 7310 columns and 18700 nonzeros
Presolve removed 26 rows and 2210 columns
Presolve time: 0.12s
Presolved: 3884 rows, 5100 columns, 16490 nonzeros
Variable types: 0 continuous, 5100 integer (5100 binary)
Found heuristic solution: objective 27.0000000
Found heuristic solution: objective 3.0000000

Root relaxation: objective 2.000000e+00, 3473 iterations, 0.05 seconds

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

     0     0    2.00000    0   30    3.00000    2.00000  33.3%     -    0s
     0     0    2.00000    0   30    3.00000    2.00000  33.3%     -    0s
     0     0    2.00000    0   87    3.00000    2.00000  33.3%     -    0s
     0     0    2.00000    0  136    3.00000    2.00000  33.3%     -    1s
     0     0    2.00000    0   30    3.00000    2.00000  33.3%     -    2s
     0     0    2.00000    0   93    3.00000    2.00000  33.3%     -    2s
     0     0    2.00000    0  136    3.00000    2.00000  33.3%     -    3s
     0     0    2.00000    0  136    3.00000    2.00000  33.3%     -    3s
     0     2    2.00000    0  136    3.00000    2.00000  33.3%     -    4s
     5     5    2.00000    1   91    3.00000    2.00000  33.3%  1304    6s
     8     7    2.00000    1   30    3.00000    2.00000  33.3%   815   10s

Cutting planes:
  Gomory: 4
  Zero half: 2

Explored 8 nodes (138374 simplex iterations) in 10.89 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%