Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:21 2012

Optimize a model with 752 rows, 54 columns and 1504 nonzeros
Presolve removed 537 rows and 0 columns
Presolve time: 0.01s
Presolved: 215 rows, 54 columns, 1279 nonzeros
Variable types: 0 continuous, 54 integer (54 binary)
Found heuristic solution: objective 7.0000000

Root relaxation: objective 9.443584e+00, 119 iterations, 0.00 seconds

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

     0     0    9.44358    0   47    7.00000    9.44358  34.9%     -    0s
     0     0    8.99754    0   48    7.00000    8.99754  28.5%     -    0s
     0     0    8.92246    0   52    7.00000    8.92246  27.5%     -    0s
     0     0    8.87792    0   52    7.00000    8.87792  26.8%     -    0s
     0     0    8.86700    0   51    7.00000    8.86700  26.7%     -    0s
     0     0    8.86281    0   51    7.00000    8.86281  26.6%     -    0s
     0     2    8.86068    0   51    7.00000    8.86068  26.6%     -    0s

Cutting planes:
  Clique: 29
  Zero half: 6

Explored 15 nodes (719 simplex iterations) in 0.09 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%