Gurobi 5.0.1 (linux64) logging started Fri Nov 16 21:41:37 2012

Optimize a model with 27631 rows, 31152 columns and 113166 nonzeros
Presolve removed 2 rows and 2 columns
Presolve time: 0.68s
Presolved: 27805 rows, 31150 columns, 143828 nonzeros
Variable types: 0 continuous, 31150 integer (31150 binary)
Found heuristic solution: objective 176.0000000

Root relaxation: objective 2.000000e+00, 17339 iterations, 1.16 seconds

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

     0     0    2.00000    0  246  176.00000    2.00000  98.9%     -    3s
H    0     0                     143.0000000    2.00000  98.6%     -    3s
H    0     0                       4.0000000    2.00000  50.0%     -    3s
     0     0    2.15385    0 1406    4.00000    2.15385  46.2%     -   10s
H    0     0                       3.0000000    2.15385  28.2%     -   11s

Cutting planes:
  Gomory: 1
  Zero half: 10

Explored 0 nodes (69217 simplex iterations) in 11.47 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%