Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:53:23 2012

Optimize a model with 5616 rows, 10920 columns and 27352 nonzeros
Presolve removed 42 rows and 4368 columns
Presolve time: 0.14s
Presolved: 5574 rows, 6552 columns, 22984 nonzeros
Variable types: 0 continuous, 6552 integer (6552 binary)
Found heuristic solution: objective 26.0000000
Found heuristic solution: objective 3.0000000

Root relaxation: objective 2.000000e+00, 6294 iterations, 0.29 seconds

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

     0     0    2.00000    0   72    3.00000    2.00000  33.3%     -    0s
     0     0    2.00000    0  147    3.00000    2.00000  33.3%     -    1s
     0     0    2.00000    0  163    3.00000    2.00000  33.3%     -    3s
     0     0    2.00000    0  138    3.00000    2.00000  33.3%     -    4s
     0     0    2.00000    0  134    3.00000    2.00000  33.3%     -    6s
     0     0    2.00000    0  138    3.00000    2.00000  33.3%     -    7s
     0     0    2.00000    0  163    3.00000    2.00000  33.3%     -    9s
     0     0    2.00000    0   72    3.00000    2.00000  33.3%     -    9s
     0     0    2.00000    0  138    3.00000    2.00000  33.3%     -   11s
     0     0    2.00000    0  138    3.00000    2.00000  33.3%     -   11s
     0     2    2.00000    0  138    3.00000    2.00000  33.3%     -   13s
     4     4    2.00000    1   72    3.00000    2.00000  33.3%  2320   15s
     6     6    2.00000    1   88    3.00000    2.00000  33.3%  1547   22s
     7     6    2.00000    1  185    3.00000    2.00000  33.3%  1326   28s

Cutting planes:
  Gomory: 4
  Zero half: 2

Explored 7 nodes (180368 simplex iterations) in 28.65 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%