Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:44:28 2012

Optimize a model with 1502 rows, 78 columns and 3004 nonzeros
Presolve removed 1049 rows and 0 columns
Presolve time: 0.03s
Presolved: 453 rows, 78 columns, 2877 nonzeros
Variable types: 0 continuous, 78 integer (78 binary)
Found heuristic solution: objective 7.0000000

Root relaxation: objective 1.199061e+01, 271 iterations, 0.01 seconds

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

     0     0   11.99061    0   71    7.00000   11.99061  71.3%     -    0s
     0     0   11.55803    0   76    7.00000   11.55803  65.1%     -    0s
     0     0   11.47110    0   77    7.00000   11.47110  63.9%     -    0s
H    0     0                       8.0000000   11.47110  43.4%     -    0s
     0     0   11.41980    0   76    8.00000   11.41980  42.7%     -    0s
     0     0   11.40758    0   76    8.00000   11.40758  42.6%     -    0s
     0     0   11.40191    0   76    8.00000   11.40191  42.5%     -    0s
     0     0   11.38699    0   77    8.00000   11.38699  42.3%     -    0s
     0     0   11.38569    0   77    8.00000   11.38569  42.3%     -    0s
     0     2   11.38514    0   77    8.00000   11.38514  42.3%     -    0s

Cutting planes:
  Clique: 55

Explored 58 nodes (3559 simplex iterations) in 0.47 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%