Gurobi 5.0.1 (linux64) logging started Fri Nov 16 06:04:27 2012

Optimize a model with 9918 rows, 3306 columns and 32832 nonzeros
Presolve time: 0.09s
Presolved: 9918 rows, 3306 columns, 33199 nonzeros
Variable types: 0 continuous, 3306 integer (3306 binary)
Found heuristic solution: objective 35.0000000

Root relaxation: objective 2.000000e+00, 3062 iterations, 0.07 seconds

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

     0     0    2.00000    0  114   35.00000    2.00000  94.3%     -    0s
H    0     0                      13.0000000    2.00000  84.6%     -    0s
H    0     0                       5.0000000    2.00000  60.0%     -    0s
     0     0    2.00000    0  114    5.00000    2.00000  60.0%     -    1s
     0     0    2.00000    0  114    5.00000    2.00000  60.0%     -    4s
     0     0    2.00000    0  114    5.00000    2.00000  60.0%     -    8s
     0     0    2.00000    0  114    5.00000    2.00000  60.0%     -   11s
H    0     0                       4.0000000    2.00000  50.0%     -   12s
     0     0    2.00000    0  114    4.00000    2.00000  50.0%     -   15s
     0     0    2.00000    0  114    4.00000    2.00000  50.0%     -   17s
     0     2    2.00000    0  114    4.00000    2.00000  50.0%     -   31s
     1     3    2.50000    1  358    4.00000    2.00000  50.0% 19401   36s
     4     6    2.50000    3  111    4.00000    2.50000  37.5%  7943   40s
    63    15    2.66667    4  147    4.00000    2.50000  37.5%   937   45s
   112    12     cutoff    6         4.00000    2.66667  33.3%   714   50s

Cutting planes:
  Clique: 110

Explored 144 nodes (144398 simplex iterations) in 50.43 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%