Gurobi 5.0.1 (linux64) logging started Sat Nov 17 07:30:49 2012

Optimize a model with 66079 rows, 55932 columns and 252990 nonzeros
Presolve removed 30 rows and 6610 columns
Presolve time: 1.63s
Presolved: 66049 rows, 49322 columns, 245822 nonzeros
Variable types: 0 continuous, 49322 integer (49322 binary)
Found heuristic solution: objective 236.0000000

Root relaxation: objective 2.000000e+00, 35168 iterations, 3.30 seconds

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

     0     0    2.00000    0  400  236.00000    2.00000  99.2%     -   11s
H    0     0                       4.0000000    2.00000  50.0%     -   11s
     0     0    2.66667    0 10489    4.00000    2.66667  33.3%     -   62s
H    0     0                       3.0000000    2.66667  11.1%     -   81s

Cutting planes:
  Clique: 4
  Zero half: 2

Explored 0 nodes (170216 simplex iterations) in 81.78 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%