Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:13 2012

Optimize a model with 356 rows, 38 columns and 712 nonzeros
Presolve removed 238 rows and 0 columns
Presolve time: 0.00s
Presolved: 118 rows, 38 columns, 590 nonzeros
Variable types: 0 continuous, 38 integer (38 binary)
Found heuristic solution: objective 4.0000000

Root relaxation: objective 7.655556e+00, 58 iterations, 0.00 seconds

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

     0     0    7.65556    0   30    4.00000    7.65556  91.4%     -    0s
H    0     0                       6.0000000    7.65556  27.6%     -    0s
     0     0    7.00000    0   28    6.00000    7.00000  16.7%     -    0s
     0     0    7.00000    0   28    6.00000    7.00000  16.7%     -    0s
     0     0    7.00000    0   26    6.00000    7.00000  16.7%     -    0s
     0     0    7.00000    0   25    6.00000    7.00000  16.7%     -    0s
     0     0    7.00000    0   28    6.00000    7.00000  16.7%     -    0s
     0     0    7.00000    0   28    6.00000    7.00000  16.7%     -    0s
     0     2    7.00000    0   28    6.00000    7.00000  16.7%     -    0s

Cutting planes:
  Gomory: 1
  Clique: 6
  Zero half: 2

Explored 5 nodes (764 simplex iterations) in 0.06 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%