Gurobi 5.0.1 (linux64) logging started Sat Nov 17 06:50:30 2012

Optimize a model with 64307 rows, 54522 columns and 246279 nonzeros
Presolve removed 21 rows and 4429 columns
Presolve time: 1.55s
Presolved: 64286 rows, 50093 columns, 241300 nonzeros
Variable types: 0 continuous, 50093 integer (50093 binary)
Found heuristic solution: objective 233.0000000

Root relaxation: objective 2.000000e+00, 35922 iterations, 3.45 seconds

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

     0     0    2.00000    0  420  233.00000    2.00000  99.1%     -   11s
H    0     0                     180.0000000    2.00000  98.9%     -   11s
H    0     0                       4.0000000    2.00000  50.0%     -   11s
H    0     0                       3.0000000    2.00000  33.3%     -   11s
     0     0 infeasible    0         3.00000    2.00000  33.3%     -   11s

Cutting planes:
  Gomory: 3
  Zero half: 45

Explored 0 nodes (119738 simplex iterations) in 11.96 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%