Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:32 2012

Optimize a model with 916 rows, 61 columns and 1832 nonzeros
Presolve removed 656 rows and 0 columns
Presolve time: 0.01s
Presolved: 260 rows, 61 columns, 1519 nonzeros
Variable types: 0 continuous, 61 integer (61 binary)
Found heuristic solution: objective 5.0000000

Root relaxation: objective 1.025070e+01, 165 iterations, 0.00 seconds

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

     0     0   10.25070    0   57    5.00000   10.25070   105%     -    0s
H    0     0                       6.0000000   10.25070  70.8%     -    0s
H    0     0                       7.0000000   10.25070  46.4%     -    0s
     0     0    9.99101    0   55    7.00000    9.99101  42.7%     -    0s
     0     0    9.90833    0   60    7.00000    9.90833  41.5%     -    0s
     0     0    9.89856    0   58    7.00000    9.89856  41.4%     -    0s
     0     0    9.89138    0   61    7.00000    9.89138  41.3%     -    0s
     0     0    9.88134    0   60    7.00000    9.88134  41.2%     -    0s
     0     0    9.86705    0   60    7.00000    9.86705  41.0%     -    0s
     0     0    9.86577    0   60    7.00000    9.86577  40.9%     -    0s
     0     2    9.86495    0   60    7.00000    9.86495  40.9%     -    0s

Cutting planes:
  Gomory: 2
  Clique: 31
  Zero half: 6

Explored 49 nodes (1781 simplex iterations) in 0.17 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%