Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:44:24 2012

Optimize a model with 1482 rows, 78 columns and 2964 nonzeros
Presolve removed 1040 rows and 0 columns
Presolve time: 0.03s
Presolved: 442 rows, 78 columns, 2759 nonzeros
Variable types: 0 continuous, 78 integer (78 binary)
Found heuristic solution: objective 7.0000000

Root relaxation: objective 1.241986e+01, 285 iterations, 0.01 seconds

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

     0     0   12.41986    0   70    7.00000   12.41986  77.4%     -    0s
H    0     0                       8.0000000   12.41986  55.2%     -    0s
     0     0   12.04276    0   76    8.00000   12.04276  50.5%     -    0s
     0     0   12.02478    0   76    8.00000   12.02478  50.3%     -    0s
     0     0   12.00962    0   76    8.00000   12.00962  50.1%     -    0s
     0     0   11.99784    0   75    8.00000   11.99784  50.0%     -    0s
     0     0   11.99417    0   75    8.00000   11.99417  49.9%     -    0s
     0     0   11.99399    0   75    8.00000   11.99399  49.9%     -    0s
     0     2   11.99349    0   75    8.00000   11.99349  49.9%     -    0s

Cutting planes:
  Gomory: 1
  Clique: 36
  Zero half: 2
  Mod-K: 1

Explored 103 nodes (4630 simplex iterations) in 0.53 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%