Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:44:19 2012

Optimize a model with 1423 rows, 76 columns and 2846 nonzeros
Presolve removed 994 rows and 0 columns
Presolve time: 0.03s
Presolved: 429 rows, 76 columns, 2729 nonzeros
Variable types: 0 continuous, 76 integer (76 binary)
Found heuristic solution: objective 6.0000000

Root relaxation: objective 1.157841e+01, 253 iterations, 0.01 seconds

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

     0     0   11.57841    0   73    6.00000   11.57841  93.0%     -    0s
H    0     0                       7.0000000   11.57841  65.4%     -    0s
     0     0   11.27726    0   76    7.00000   11.27726  61.1%     -    0s
H    0     0                       8.0000000   11.27726  41.0%     -    0s
     0     0   11.21833    0   76    8.00000   11.21833  40.2%     -    0s
     0     0   11.20345    0   76    8.00000   11.20345  40.0%     -    0s
     0     0   11.20179    0   76    8.00000   11.20179  40.0%     -    0s
     0     2   11.20102    0   76    8.00000   11.20102  40.0%     -    0s

Cutting planes:
  Clique: 26
  Zero half: 12

Explored 56 nodes (3299 simplex iterations) in 0.33 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%