Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:18 2012

Optimize a model with 605 rows, 51 columns and 1210 nonzeros
Presolve removed 407 rows and 0 columns
Presolve time: 0.01s
Presolved: 198 rows, 51 columns, 1041 nonzeros
Variable types: 0 continuous, 51 integer (51 binary)
Found heuristic solution: objective 7.0000000

Root relaxation: objective 9.861871e+00, 102 iterations, 0.00 seconds

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

     0     0    9.86187    0   45    7.00000    9.86187  40.9%     -    0s
     0     0    9.55012    0   49    7.00000    9.55012  36.4%     -    0s
     0     0    9.47602    0   47    7.00000    9.47602  35.4%     -    0s
H    0     0                       8.0000000    9.47602  18.5%     -    0s
     0     0    9.41170    0   48    8.00000    9.41170  17.6%     -    0s
     0     0    9.38918    0   49    8.00000    9.38918  17.4%     -    0s
     0     0    9.38576    0   47    8.00000    9.38576  17.3%     -    0s
     0     0    9.38547    0   47    8.00000    9.38547  17.3%     -    0s
     0     2    9.38334    0   47    8.00000    9.38334  17.3%     -    0s

Cutting planes:
  Gomory: 2
  Clique: 14
  Zero half: 7

Explored 5 nodes (367 simplex iterations) in 0.06 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 8.000000000000e+00, best bound 8.000000000000e+00, gap 0.0%