Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:15 2012

Optimize a model with 513 rows, 46 columns and 1026 nonzeros
Presolve removed 348 rows and 0 columns
Presolve time: 0.01s
Presolved: 165 rows, 46 columns, 909 nonzeros
Variable types: 0 continuous, 46 integer (46 binary)
Found heuristic solution: objective 6.0000000

Root relaxation: objective 8.889445e+00, 89 iterations, 0.00 seconds

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

     0     0    8.88944    0   40    6.00000    8.88944  48.2%     -    0s
H    0     0                       7.0000000    8.88944  27.0%     -    0s
     0     0    8.61037    0   42    7.00000    8.61037  23.0%     -    0s
     0     0    8.54804    0   42    7.00000    8.54804  22.1%     -    0s
     0     0    8.52313    0   42    7.00000    8.52313  21.8%     -    0s
     0     0    8.51505    0   42    7.00000    8.51505  21.6%     -    0s
     0     0    8.51212    0   43    7.00000    8.51212  21.6%     -    0s
     0     2    8.50868    0   43    7.00000    8.50868  21.6%     -    0s

Cutting planes:
  Gomory: 1
  Clique: 17
  Zero half: 4

Explored 7 nodes (291 simplex iterations) in 0.05 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%