Gurobi 5.0.1 (linux64) logging started Fri Nov 16 06:20:05 2012

Optimize a model with 10034 rows, 3422 columns and 33292 nonzeros
Presolve time: 0.08s
Presolved: 10034 rows, 3422 columns, 33613 nonzeros
Variable types: 0 continuous, 3422 integer (3422 binary)
Found heuristic solution: objective 33.0000000

Root relaxation: objective 2.000000e+00, 3354 iterations, 0.14 seconds

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

     0     0    2.00000    0  116   33.00000    2.00000  93.9%     -    1s
H    0     0                      13.0000000    2.00000  84.6%     -    1s
H    0     0                       5.0000000    2.00000  60.0%     -    1s
     0     0    2.00000    0  116    5.00000    2.00000  60.0%     -    2s
     0     0    2.00000    0  116    5.00000    2.00000  60.0%     -    6s
     0     0    2.00000    0  116    5.00000    2.00000  60.0%     -    9s
H    0     0                       4.0000000    2.00000  50.0%     -    9s
     0     0    2.00000    0  116    4.00000    2.00000  50.0%     -   14s
     0     0    2.00000    0  116    4.00000    2.00000  50.0%     -   17s
     0     0    2.00000    0  116    4.00000    2.00000  50.0%     -   20s
     0     2    2.00000    0  116    4.00000    2.00000  50.0%     -   29s
     1     3    2.50000    1  754    4.00000    2.00000  50.0% 29643   37s
     2     4    2.50000    1  547    4.00000    2.50000  37.5% 20075   41s
    45    17    3.00000    3  142    4.00000    2.50000  37.5%  1305   45s
    85    17    3.00000    7  108    4.00000    2.50000  37.5%   916   50s
   200     6    3.00000    7  106    4.00000    3.00000  25.0%   507   55s

Cutting planes:
  Clique: 93

Explored 221 nodes (166687 simplex iterations) in 55.14 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%