Gurobi 5.0.1 (linux64) logging started Sat Nov 17 06:07:09 2012

Optimize a model with 67389 rows, 53130 columns and 254148 nonzeros
Presolve removed 18 rows and 3682 columns
Presolve time: 4.89s
Presolved: 67371 rows, 49448 columns, 249882 nonzeros
Variable types: 0 continuous, 49448 integer (49448 binary)
Found heuristic solution: objective 230.0000000

Root relaxation: objective 2.000000e+00, 35508 iterations, 3.16 seconds
Total elapsed time = 13.82s

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

     0     0    2.00000    0  428  230.00000    2.00000  99.1%     -   15s
H    0     0                     190.0000000    2.00000  98.9%     -   15s
H    0     0                       4.0000000    2.00000  50.0%     -   15s
     0     0    2.66667    0 10204    4.00000    2.66667  33.3%     -   48s
H    0     0                       3.0000000    2.66667  11.1%     -   70s

Cutting planes:
  Clique: 2
  Zero half: 1

Explored 0 nodes (164368 simplex iterations) in 70.27 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%