Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:17 2012

Optimize a model with 592 rows, 49 columns and 1184 nonzeros
Presolve removed 427 rows and 0 columns
Presolve time: 0.01s
Presolved: 165 rows, 49 columns, 924 nonzeros
Variable types: 0 continuous, 49 integer (49 binary)
Found heuristic solution: objective 7.0000000

Root relaxation: objective 9.314917e+00, 91 iterations, 0.00 seconds

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

     0     0    9.31492    0   42    7.00000    9.31492  33.1%     -    0s
     0     0    8.84726    0   45    7.00000    8.84726  26.4%     -    0s
     0     0    8.75274    0   40    7.00000    8.75274  25.0%     -    0s
     0     0    8.62952    0   43    7.00000    8.62952  23.3%     -    0s
H    0     0                       8.0000000    8.62952  7.87%     -    0s

Cutting planes:
  Clique: 15
  Zero half: 3

Explored 0 nodes (193 simplex iterations) in 0.03 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 8.000000000000e+00, best bound 8.000000000000e+00, gap 0.0%