Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:14 2012

Optimize a model with 442 rows, 43 columns and 884 nonzeros
Presolve removed 300 rows and 0 columns
Presolve time: 0.01s
Presolved: 142 rows, 43 columns, 722 nonzeros
Variable types: 0 continuous, 43 integer (43 binary)
Found heuristic solution: objective 6.0000000

Root relaxation: objective 8.508046e+00, 74 iterations, 0.00 seconds

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

     0     0    8.50805    0   36    6.00000    8.50805  41.8%     -    0s
H    0     0                       7.0000000    8.50805  21.5%     -    0s
     0     0    8.33868    0   39    7.00000    8.33868  19.1%     -    0s
     0     0    8.25405    0   38    7.00000    8.25405  17.9%     -    0s
     0     0    8.19918    0   36    7.00000    8.19918  17.1%     -    0s
     0     0    8.14222    0   36    7.00000    8.14222  16.3%     -    0s
     0     0    8.13559    0   36    7.00000    8.13559  16.2%     -    0s
     0     0    8.06214    0   35    7.00000    8.06214  15.2%     -    0s
     0     0    8.05420    0   36    7.00000    8.05420  15.1%     -    0s
     0     0    8.04571    0   37    7.00000    8.04571  14.9%     -    0s
     0     0    8.01538    0   37    7.00000    8.01538  14.5%     -    0s
     0     0     cutoff    0         7.00000    7.99999  14.3%     -    0s

Cutting planes:
  Clique: 13
  Zero half: 10

Explored 0 nodes (253 simplex iterations) in 0.04 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0%