Gurobi 5.0.1 (linux64) logging started Fri Nov 16 06:05:55 2012

Optimize a model with 8778 rows, 3306 columns and 29412 nonzeros
Presolve time: 0.08s
Presolved: 8778 rows, 3306 columns, 29786 nonzeros
Variable types: 0 continuous, 3306 integer (3306 binary)
Found heuristic solution: objective 34.0000000

Root relaxation: objective 2.000000e+00, 3053 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   34.00000    2.00000  94.1%     -    0s
H    0     0                      11.0000000    2.00000  81.8%     -    0s
H    0     0                       5.0000000    2.00000  60.0%     -    1s
     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
H    0     0                       4.0000000    2.00000  50.0%     -    5s
     0     0    2.00000    0  114    4.00000    2.00000  50.0%     -    8s
     0     0    2.00000    0  114    4.00000    2.00000  50.0%     -   11s
     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%     -   25s
     1     3    3.00000    1  425    4.00000    2.00000  50.0% 29749   32s
     3     5    3.00000    2  654    4.00000    3.00000  25.0% 13499   35s
    13     3     cutoff    4         4.00000    3.00000  25.0%  4722   40s
    30     4     cutoff    8         4.00000    3.00000  25.0%  2841   45s
    39     3     cutoff    5         4.00000    3.00000  25.0%  2620   50s

Cutting planes:
  Clique: 132

Explored 75 nodes (183357 simplex iterations) in 54.40 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%