Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:48:57 2012

Optimize a model with 6161 rows, 10302 columns and 28381 nonzeros
Presolve removed 30 rows and 3030 columns
Presolve time: 0.13s
Presolved: 6131 rows, 7272 columns, 25351 nonzeros
Variable types: 0 continuous, 7272 integer (7272 binary)
Found heuristic solution: objective 34.0000000

Root relaxation: objective 2.000000e+00, 5856 iterations, 0.19 seconds

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

     0     0    2.00000    0   74   34.00000    2.00000  94.1%     -    0s
H    0     0                       3.0000000    2.00000  33.3%     -    0s
     0     0    2.00000    0  159    3.00000    2.00000  33.3%     -    1s
     0     0    2.00000    0  182    3.00000    2.00000  33.3%     -    3s
     0     0    2.00000    0  157    3.00000    2.00000  33.3%     -    6s
     0     0    2.00000    0  143    3.00000    2.00000  33.3%     -    8s
     0     0    2.00000    0  182    3.00000    2.00000  33.3%     -   10s
     0     0    2.00000    0   74    3.00000    2.00000  33.3%     -   12s
     0     0    2.00000    0  149    3.00000    2.00000  33.3%     -   14s
     0     0    2.00000    0  145    3.00000    2.00000  33.3%     -   17s
     0     0    2.00000    0  182    3.00000    2.00000  33.3%     -   20s
     0     0    2.00000    0  182    3.00000    2.00000  33.3%     -   21s
     0     2    2.00000    0  182    3.00000    2.00000  33.3%     -   24s
     4     4    2.00000    1   74    3.00000    2.00000  33.3%  2748   25s
     6     6    2.00000    1  146    3.00000    2.00000  33.3%  1832   31s

Cutting planes:
  Gomory: 12
  Zero half: 6

Explored 7 nodes (249177 simplex iterations) in 34.44 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%