Gurobi 5.0.1 (linux64) logging started Sat Nov 17 04:40:18 2012

Optimize a model with 58985 rows, 51302 columns and 227128 nonzeros
Presolve removed 2 rows and 2 columns
Presolve time: 1.42s
Presolved: 59209 rows, 51300 columns, 277682 nonzeros
Variable types: 0 continuous, 51300 integer (51300 binary)
Found heuristic solution: objective 226.0000000

Root relaxation: objective 2.000000e+00, 34528 iterations, 3.69 seconds
Total elapsed time = 10.22s

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

     0     0    2.00000    0  400  226.00000    2.00000  99.1%     -   11s
H    0     0                     187.0000000    2.00000  98.9%     -   11s
H    0     0                       4.0000000    2.00000  50.0%     -   11s
     0     0    2.66667    0 13219    4.00000    2.66667  33.3%     -   47s
H    0     0                       3.0000000    2.66667  11.1%     -   77s

Cutting planes:
  Clique: 2
  Zero half: 4

Explored 0 nodes (150013 simplex iterations) in 77.53 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%