Gurobi 5.0.1 (linux64) logging started Fri Nov 16 18:26:12 2012

Optimize a model with 8954 rows, 14762 columns and 41140 nonzeros
Presolve removed 32 rows and 3872 columns
Presolve time: 0.15s
Presolved: 8922 rows, 10890 columns, 37268 nonzeros
Variable types: 0 continuous, 10890 integer (10890 binary)
Found heuristic solution: objective 31.0000000

Root relaxation: objective 2.000000e+00, 7856 iterations, 0.22 seconds

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

     0     0    2.00000    0   68   31.00000    2.00000  93.5%     -    0s
H    0     0                       3.0000000    2.00000  33.3%     -    0s
     0     0    2.00000    0  183    3.00000    2.00000  33.3%     -    1s
     0     0    2.00000    0  215    3.00000    2.00000  33.3%     -    6s
     0     0    2.00000    0   68    3.00000    2.00000  33.3%     -   12s
     0     0    2.00000    0  158    3.00000    2.00000  33.3%     -   15s
     0     0    2.00000    0  160    3.00000    2.00000  33.3%     -   21s
     0     0    2.00000    0  215    3.00000    2.00000  33.3%     -   25s
     0     0    2.00000    0  215    3.00000    2.00000  33.3%     -   27s
     0     2    2.00000    0  215    3.00000    2.00000  33.3%     -   31s
     5     5    2.00000    1  156    3.00000    2.00000  33.3%  3784   39s

Cutting planes:
  Zero half: 4

Explored 6 nodes (230885 simplex iterations) in 39.15 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%