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

Optimize a model with 338 rows, 37 columns and 676 nonzeros
Presolve removed 243 rows and 0 columns
Presolve time: 0.00s
Presolved: 95 rows, 37 columns, 489 nonzeros
Variable types: 0 continuous, 37 integer (37 binary)
Found heuristic solution: objective 6.0000000

Root relaxation: objective 7.600000e+00, 64 iterations, 0.00 seconds

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

     0     0    7.60000    0   29    6.00000    7.60000  26.7%     -    0s
     0     0    7.20615    0   34    6.00000    7.20615  20.1%     -    0s
     0     0    7.18182    0   32    6.00000    7.18182  19.7%     -    0s
     0     0    7.18182    0   31    6.00000    7.18182  19.7%     -    0s
     0     0    7.16076    0   34    6.00000    7.16076  19.3%     -    0s
     0     0    7.09459    0   34    6.00000    7.09459  18.2%     -    0s
     0     0    7.07661    0   34    6.00000    7.07661  17.9%     -    0s
     0     0    7.03861    0   33    6.00000    7.03861  17.3%     -    0s
     0     0     cutoff    0         6.00000    6.99999  16.7%     -    0s

Cutting planes:
  Gomory: 2
  Clique: 9
  Zero half: 14

Explored 0 nodes (244 simplex iterations) in 0.02 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%