Gurobi 5.0.1 (linux64) logging started Fri Nov 16 05:07:19 2012

Optimize a model with 8964 rows, 2970 columns and 29646 nonzeros
Presolve time: 0.08s
Presolved: 8964 rows, 2970 columns, 30024 nonzeros
Variable types: 0 continuous, 2970 integer (2970 binary)
Found heuristic solution: objective 33.0000000

Root relaxation: objective 2.000000e+00, 2762 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  108   33.00000    2.00000  93.9%     -    0s
H    0     0                      14.0000000    2.00000  85.7%     -    0s
H    0     0                       5.0000000    2.00000  60.0%     -    0s
     0     0    2.00000    0  108    5.00000    2.00000  60.0%     -    1s
     0     0    2.00000    0  108    5.00000    2.00000  60.0%     -    3s
     0     0    2.00000    0  108    5.00000    2.00000  60.0%     -    7s
H    0     0                       4.0000000    2.00000  50.0%     -    7s
     0     0    2.00000    0  108    4.00000    2.00000  50.0%     -   10s
     0     0    2.00000    0  108    4.00000    2.00000  50.0%     -   14s
     0     0    2.00000    0  108    4.00000    2.00000  50.0%     -   16s
     0     2    2.00000    0  108    4.00000    2.00000  50.0%     -   23s
     1     3    3.00000    1  613    4.00000    2.00000  50.0% 18511   27s
     2     4    3.00000    1  515    4.00000    3.00000  25.0% 14831   30s
    28     6     cutoff    9         4.00000    3.00000  25.0%  1870   35s
    45     5     cutoff    5         4.00000    3.00000  25.0%  1723   40s

Cutting planes:
  Clique: 88

Explored 77 nodes (145665 simplex iterations) in 42.59 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%