Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:58:17 2012

Optimize a model with 7630 rows, 11990 columns and 34444 nonzeros
Presolve removed 25 rows and 2725 columns
Presolve time: 0.14s
Presolved: 7605 rows, 9265 columns, 31719 nonzeros
Variable types: 0 continuous, 9265 integer (9265 binary)
Found heuristic solution: objective 33.0000000

Root relaxation: objective 2.000000e+00, 6777 iterations, 0.21 seconds

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

     0     0    2.00000    0   42   33.00000    2.00000  93.9%     -    0s
H    0     0                       4.0000000    2.00000  50.0%     -    0s
H    0     0                       3.0000000    2.00000  33.3%     -    0s
     0     0    2.00000    0  273    3.00000    2.00000  33.3%     -    1s
     0     0    2.00000    0  127    3.00000    2.00000  33.3%     -    4s
     0     0    2.00000    0  192    3.00000    2.00000  33.3%     -    7s
     0     0    2.00000    0   42    3.00000    2.00000  33.3%     -   11s
     0     0    2.00000    0  123    3.00000    2.00000  33.3%     -   14s
     0     0    2.00000    0  133    3.00000    2.00000  33.3%     -   17s
     0     0    2.00000    0  192    3.00000    2.00000  33.3%     -   20s
     0     0    2.00000    0  192    3.00000    2.00000  33.3%     -   22s
     0     2    2.00000    0  192    3.00000    2.00000  33.3%     -   25s
     5     5    2.00000    1  127    3.00000    2.00000  33.3%  2305   32s

Cutting planes:
  Gomory: 1
  Zero half: 1

Explored 5 nodes (203637 simplex iterations) in 32.04 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%