Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:12 2012

Optimize a model with 335 rows, 37 columns and 670 nonzeros
Presolve removed 239 rows and 0 columns
Presolve time: 0.00s
Presolved: 96 rows, 37 columns, 495 nonzeros
Variable types: 0 continuous, 37 integer (37 binary)
Found heuristic solution: objective 6.0000000

Root relaxation: objective 7.669231e+00, 65 iterations, 0.00 seconds

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

     0     0    7.66923    0   31    6.00000    7.66923  27.8%     -    0s
     0     0    7.38389    0   35    6.00000    7.38389  23.1%     -    0s
     0     0    7.33546    0   33    6.00000    7.33546  22.3%     -    0s
     0     0    7.32711    0   33    6.00000    7.32711  22.1%     -    0s
     0     0    7.30887    0   34    6.00000    7.30887  21.8%     -    0s
     0     0    7.30172    0   34    6.00000    7.30172  21.7%     -    0s
     0     0    7.30116    0   34    6.00000    7.30116  21.7%     -    0s
     0     2    7.29691    0   34    6.00000    7.29691  21.6%     -    0s

Cutting planes:
  Clique: 12
  Zero half: 8

Explored 7 nodes (269 simplex iterations) in 0.03 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.000000000000e+00, best bound 6.000000000000e+00, gap 0.0%