Gurobi 5.0.1 (linux64) logging started Sat Nov 17 00:12:12 2012

Optimize a model with 43877 rows, 42642 columns and 173244 nonzeros
Presolve removed 28 rows and 5358 columns
Presolve time: 1.04s
Presolved: 43849 rows, 37284 columns, 167462 nonzeros
Variable types: 0 continuous, 37284 integer (37284 binary)
Found heuristic solution: objective 206.0000000

Root relaxation: objective 2.000000e+00, 26118 iterations, 1.93 seconds
Total elapsed time = 5.86s

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

     0     0    2.00000    0  340  206.00000    2.00000  99.0%     -    6s
H    0     0                     183.0000000    2.00000  98.9%     -    6s
H    0     0                       4.0000000    2.00000  50.0%     -    7s
     0     0    2.66667    0 3094    4.00000    2.66667  33.3%     -   19s
H    0     0                       3.0000000    2.66667  11.1%     -   20s

Cutting planes:
  Clique: 2
  Zero half: 5

Explored 0 nodes (110173 simplex iterations) in 20.78 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%