Gurobi 5.0.1 (linux64) logging started Sat Nov 17 03:43:21 2012

Optimize a model with 57087 rows, 49952 columns and 220099 nonzeros
Presolve removed 2 rows and 2 columns
Presolve time: 1.46s
Presolved: 57308 rows, 49950 columns, 269316 nonzeros
Variable types: 0 continuous, 49950 integer (49950 binary)
Found heuristic solution: objective 223.0000000

Root relaxation: objective 2.000000e+00, 32070 iterations, 3.00 seconds
Total elapsed time = 8.32s

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

     0     0    2.00000    0  376  223.00000    2.00000  99.1%     -    9s
H    0     0                     208.0000000    2.00000  99.0%     -    9s
H    0     0                       4.0000000    2.00000  50.0%     -    9s
     0     0    2.25000    0 4853    4.00000    2.25000  43.8%     -   28s
H    0     0                       3.0000000    2.25000  25.0%     -   32s

Cutting planes:
  Gomory: 1
  Zero half: 8

Explored 0 nodes (134209 simplex iterations) in 32.22 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%