Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:44:05 2012

Optimize a model with 5472 rows, 9312 columns and 25344 nonzeros
Presolve removed 32 rows and 3072 columns
Presolve time: 0.13s
Presolved: 5440 rows, 6240 columns, 22272 nonzeros
Variable types: 0 continuous, 6240 integer (6240 binary)
Found heuristic solution: objective 26.0000000
Found heuristic solution: objective 3.0000000

Root relaxation: objective 2.000000e+00, 6441 iterations, 0.40 seconds

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

     0     0    2.00000    0   80    3.00000    2.00000  33.3%     -    1s
     0     0    2.00000    0  276    3.00000    2.00000  33.3%     -    1s
     0     0    2.00000    0  154    3.00000    2.00000  33.3%     -    3s
     0     0    2.00000    0  171    3.00000    2.00000  33.3%     -    4s
     0     0    2.00000    0   80    3.00000    2.00000  33.3%     -    6s
     0     0    2.00000    0  148    3.00000    2.00000  33.3%     -    8s
     0     0    2.00000    0  171    3.00000    2.00000  33.3%     -   10s
     0     0    2.00000    0   80    3.00000    2.00000  33.3%     -   12s
     0     0    2.00000    0  144    3.00000    2.00000  33.3%     -   13s
     0     0    2.00000    0  144    3.00000    2.00000  33.3%     -   14s
     0     2    2.00000    0  144    3.00000    2.00000  33.3%     -   16s
     5     5    2.00000    1  146    3.00000    2.00000  33.3%  1478   20s

Cutting planes:
  Gomory: 9
  Zero half: 8

Explored 6 nodes (171645 simplex iterations) in 22.89 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%