Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:44:17 2012

Optimize a model with 1474 rows, 76 columns and 2948 nonzeros
Presolve removed 1036 rows and 0 columns
Presolve time: 0.04s
Presolved: 438 rows, 76 columns, 2866 nonzeros
Variable types: 0 continuous, 76 integer (76 binary)
Found heuristic solution: objective 6.0000000

Root relaxation: objective 1.155436e+01, 243 iterations, 0.01 seconds

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

     0     0   11.55436    0   71    6.00000   11.55436  92.6%     -    0s
H    0     0                       8.0000000   11.55436  44.4%     -    0s
     0     0   11.26484    0   73    8.00000   11.26484  40.8%     -    0s
     0     0   11.21724    0   74    8.00000   11.21724  40.2%     -    0s
     0     0   11.15561    0   74    8.00000   11.15561  39.4%     -    0s
     0     0   11.13380    0   76    8.00000   11.13380  39.2%     -    0s
     0     0   11.12727    0   76    8.00000   11.12727  39.1%     -    0s
     0     0   11.12617    0   76    8.00000   11.12617  39.1%     -    0s
     0     0   11.12613    0   76    8.00000   11.12613  39.1%     -    0s
     0     2   11.12068    0   76    8.00000   11.12068  39.0%     -    0s

Cutting planes:
  Clique: 37
  Zero half: 7

Explored 42 nodes (2855 simplex iterations) in 0.44 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%