Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:41:26 2012

Optimize a model with 3960 rows, 8190 columns and 19710 nonzeros
Presolve removed 32 rows and 2880 columns
Presolve time: 0.13s
Presolved: 3928 rows, 5310 columns, 16830 nonzeros
Variable types: 0 continuous, 5310 integer (5310 binary)
Found heuristic solution: objective 23.0000000
Found heuristic solution: objective 3.0000000

Root relaxation: objective 2.000000e+00, 3698 iterations, 0.07 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  125    3.00000    2.00000  33.3%     -    0s
     0     0    2.00000    0   91    3.00000    2.00000  33.3%     -    1s
     0     0    2.00000    0  134    3.00000    2.00000  33.3%     -    2s
     0     0    2.00000    0   30    3.00000    2.00000  33.3%     -    2s
     0     0    2.00000    0   83    3.00000    2.00000  33.3%     -    3s
     0     0    2.00000    0  134    3.00000    2.00000  33.3%     -    3s
     0     0    2.00000    0   30    3.00000    2.00000  33.3%     -    3s
     0     0    2.00000    0   91    3.00000    2.00000  33.3%     -    4s
     0     0    2.00000    0   91    3.00000    2.00000  33.3%     -    4s
     0     2    2.00000    0   91    3.00000    2.00000  33.3%     -    5s
     8     7    2.00000    1   38    3.00000    2.00000  33.3%   750   11s

Cutting planes:
  Gomory: 5
  Zero half: 5

Explored 15 nodes (165222 simplex iterations) in 12.73 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%