Gurobi 5.0.1 (linux64) logging started Fri Nov 16 06:17:47 2012

Optimize a model with 10846 rows, 3422 columns and 35728 nonzeros
Presolve time: 0.09s
Presolved: 10846 rows, 3422 columns, 36076 nonzeros
Variable types: 0 continuous, 3422 integer (3422 binary)
Found heuristic solution: objective 40.0000000

Root relaxation: objective 2.000000e+00, 7901 iterations, 1.39 seconds

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

     0     0    2.00000    0  116   40.00000    2.00000  95.0%     -    1s
H    0     0                      11.0000000    2.00000  81.8%     -    1s
H    0     0                       5.0000000    2.00000  60.0%     -    1s
     0     0    2.00000    0  116    5.00000    2.00000  60.0%     -    1s
     0     0    2.00000    0  116    5.00000    2.00000  60.0%     -    5s
     0     0    2.00000    0  116    5.00000    2.00000  60.0%     -    8s
     0     0    2.00000    0  116    5.00000    2.00000  60.0%     -   12s
     0     0    2.00000    0  116    5.00000    2.00000  60.0%     -   15s
     0     0    2.00000    0  116    5.00000    2.00000  60.0%     -   18s
     0     2    2.00000    0  116    5.00000    2.00000  60.0%     -   27s
     1     3    3.00000    1  653    5.00000    2.00000  60.0% 41808   40s
     2     4    3.00000    1  644    5.00000    3.00000  40.0% 35020   49s
     3     5    3.00000    2  201    5.00000    3.00000  40.0% 24118   50s
*   14     9              10       4.0000000    3.00000  25.0%  5339   50s
    27     8     cutoff    7         4.00000    3.00000  25.0%  3333   55s
    38     7    3.00000    4  108    4.00000    3.00000  25.0%  2836   60s

Cutting planes:
  Clique: 157

Explored 86 nodes (187700 simplex iterations) in 64.96 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%