Gurobi 5.0.1 (linux64) logging started Fri Nov 16 11:49:32 2012

Optimize a model with 17537 rows, 5112 columns and 57439 nonzeros
Presolve time: 0.13s
Presolved: 17537 rows, 5112 columns, 57565 nonzeros
Variable types: 0 continuous, 5112 integer (5112 binary)
Found heuristic solution: objective 40.0000000

Root relaxation: objective 2.000000e+00, 5145 iterations, 0.26 seconds

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

     0     0    2.00000    0  142   40.00000    2.00000  95.0%     -    1s
H    0     0                      17.0000000    2.00000  88.2%     -    1s
H    0     0                       5.0000000    2.00000  60.0%     -    1s
     0     0    2.00000    0  142    5.00000    2.00000  60.0%     -    4s
     0     0    2.00000    0  142    5.00000    2.00000  60.0%     -   12s
     0     0    2.00000    0  142    5.00000    2.00000  60.0%     -   19s
     0     0    2.00000    0  142    5.00000    2.00000  60.0%     -   33s
     0     0    2.00000    0  142    5.00000    2.00000  60.0%     -   41s
     0     0    2.00000    0  142    5.00000    2.00000  60.0%     -   49s
     0     2    2.00000    0  142    5.00000    2.00000  60.0%     -   76s
     1     3    2.66667    1  201    5.00000    2.00000  60.0% 65509   95s
     2     4    2.50000    1  139    5.00000    2.50000  50.0% 50543  109s
     3     5    2.50000    2  195    5.00000    2.50000  50.0% 34541  110s
H   54     8                       4.0000000    2.66667  33.3%  2183  113s
    62     8    3.00000    3  163    4.00000    2.66667  33.3%  2005  115s

Cutting planes:
  Clique: 148
  Zero half: 9

Explored 101 nodes (244712 simplex iterations) in 115.80 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0%