Gurobi 5.0.1 (linux64) logging started Sat Nov 17 01:48:43 2012

Optimize a model with 50975 rows, 46872 columns and 198718 nonzeros
Presolve removed 2 rows and 2 columns
Presolve time: 1.15s
Presolved: 51189 rows, 46870 columns, 244902 nonzeros
Variable types: 0 continuous, 46870 integer (46870 binary)
Found heuristic solution: objective 216.0000000

Root relaxation: objective 2.000000e+00, 29988 iterations, 2.62 seconds
Total elapsed time = 7.30s

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

     0     0    2.00000    0  358  216.00000    2.00000  99.1%     -    8s
H    0     0                     214.0000000    2.00000  99.1%     -    8s
H    0     0                       4.0000000    2.00000  50.0%     -    8s
     0     0    2.66667    0 8470    4.00000    2.66667  33.3%     -   29s
H    0     0                       3.0000000    2.66667  11.1%     -   40s

Cutting planes:
  Clique: 2
  Zero half: 2

Explored 0 nodes (126857 simplex iterations) in 40.32 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%