Gurobi 5.0.1 (linux64) logging started Fri Nov 16 04:10:55 2012

Optimize a model with 6565 rows, 2450 columns and 21901 nonzeros
Presolve removed 3 rows and 51 columns
Presolve time: 0.11s
Presolved: 6562 rows, 2399 columns, 21584 nonzeros
Variable types: 0 continuous, 2399 integer (2399 binary)
Found heuristic solution: objective 47.0000000

Root relaxation: objective 2.000000e+00, 1762 iterations, 0.04 seconds

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

     0     0    2.00000    0   96   47.00000    2.00000  95.7%     -    0s
H    0     0                      43.0000000    2.00000  95.3%     -    0s
H    0     0                       5.0000000    2.00000  60.0%     -    0s
     0     0    3.00000    0  563    5.00000    3.00000  40.0%     -    0s
     0     0    3.00000    0 1405    5.00000    3.00000  40.0%     -    1s
     0     0    3.00000    0   68    5.00000    3.00000  40.0%     -    3s
     0     0    3.01075    0 1424    5.00000    3.01075  39.8%     -    5s
     0     0    3.01075    0 1500    5.00000    3.01075  39.8%     -    6s
     0     0    3.01075    0 1194    5.00000    3.01075  39.8%     -    8s
     0     0    3.01075    0 1217    5.00000    3.01075  39.8%     -    9s
     0     0    3.01075    0 1313    5.00000    3.01075  39.8%     -   10s
     0     0    3.01075    0 1341    5.00000    3.01075  39.8%     -   12s
     0     0    3.01075    0 1341    5.00000    3.01075  39.8%     -   13s
     0     2    3.50000    0 1341    5.00000    3.50000  30.0%     -   16s
*   11     3               8       4.0000000    4.00000   0.0%   914   16s

Cutting planes:
  Clique: 28
  Zero half: 8

Explored 12 nodes (85914 simplex iterations) in 16.88 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%