Gurobi 5.0.1 (linux64) logging started Sat Nov 17 03:12:51 2012

Optimize a model with 58785 rows, 49062 columns and 224313 nonzeros
Presolve removed 2 rows and 2 columns
Presolve time: 1.43s
Presolved: 59004 rows, 49060 columns, 272622 nonzeros
Variable types: 0 continuous, 49060 integer (49060 binary)
Found heuristic solution: objective 221.0000000

Root relaxation: objective 2.000000e+00, 32254 iterations, 3.13 seconds
Total elapsed time = 8.95s

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

     0     0    2.00000    0  402  221.00000    2.00000  99.1%     -   10s
H    0     0                     213.0000000    2.00000  99.1%     -   10s
H    0     0                       4.0000000    2.00000  50.0%     -   10s
     0     0    2.25000    0 1059    4.00000    2.25000  43.8%     -   44s
H    0     0                       3.0000000    2.25000  25.0%     -   44s

Cutting planes:
  Zero half: 9

Explored 0 nodes (143115 simplex iterations) in 44.86 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%