Gurobi 5.0.1 (linux64) logging started Fri Nov 16 05:52:33 2012

Optimize a model with 9575 rows, 3192 columns and 31638 nonzeros
Presolve removed 2 rows and 2 columns
Presolve time: 0.22s
Presolved: 9573 rows, 3190 columns, 31296 nonzeros
Variable types: 0 continuous, 3190 integer (3190 binary)
Found heuristic solution: objective 55.0000000

Root relaxation: objective 2.000000e+00, 2164 iterations, 0.06 seconds

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

     0     0    2.00000    0  112   55.00000    2.00000  96.4%     -    0s
H    0     0                      54.0000000    2.00000  96.3%     -    0s
H    0     0                       5.0000000    2.00000  60.0%     -    0s
     0     0    3.00000    0 1622    5.00000    3.00000  40.0%     -    1s
     0     0    3.00000    0   98    5.00000    3.00000  40.0%     -    6s
     0     2    3.00000    0   97    5.00000    3.00000  40.0%     -    7s
*   15     4              11       4.0000000    4.00000   0.0%   675    9s

Cutting planes:
  Clique: 13

Explored 16 nodes (41544 simplex iterations) in 9.15 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%