Gurobi 5.0.1 (linux64) logging started Sat Nov 17 08:18:39 2012

Optimize a model with 71460 rows, 57360 columns and 270546 nonzeros
Presolve removed 11 rows and 2629 columns (presolve time = 5s) ...
Presolve removed 13 rows and 2631 columns
Presolve time: 5.42s
Presolved: 71447 rows, 54729 columns, 267319 nonzeros
Variable types: 0 continuous, 54729 integer (54729 binary)
Found heuristic solution: objective 239.0000000

Root relaxation: objective 2.000000e+00, 38986 iterations, 3.77 seconds
Total elapsed time = 15.05s

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

     0     0    2.00000    0  448  239.00000    2.00000  99.2%     -   16s
H    0     0                     197.0000000    2.00000  99.0%     -   16s
H    0     0                       4.0000000    2.00000  50.0%     -   18s
     0     0    2.66667    0 16903    4.00000    2.66667  33.3%     -   48s
H    0     0                       3.0000000    2.66667  11.1%     -  101s

Cutting planes:
  Clique: 2
  Zero half: 3

Explored 0 nodes (164035 simplex iterations) in 101.67 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%