Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:44:08 2012

Optimize a model with 1395 rows, 74 columns and 2790 nonzeros
Presolve removed 987 rows and 0 columns
Presolve time: 0.03s
Presolved: 408 rows, 74 columns, 2714 nonzeros
Variable types: 0 continuous, 74 integer (74 binary)
Found heuristic solution: objective 5.0000000

Root relaxation: objective 1.107300e+01, 221 iterations, 0.01 seconds

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

     0     0   11.07300    0   66    5.00000   11.07300   121%     -    0s
H    0     0                       6.0000000   11.07300  84.6%     -    0s
H    0     0                       7.0000000   11.07300  58.2%     -    0s
     0     0   10.85570    0   69    7.00000   10.85570  55.1%     -    0s
H    0     0                       8.0000000   10.85570  35.7%     -    0s
     0     0   10.75691    0   73    8.00000   10.75691  34.5%     -    0s
     0     0   10.72985    0   71    8.00000   10.72985  34.1%     -    0s
     0     0   10.65868    0   73    8.00000   10.65868  33.2%     -    0s
     0     0   10.64625    0   73    8.00000   10.64625  33.1%     -    0s
     0     0   10.61292    0   73    8.00000   10.61292  32.7%     -    0s
     0     0   10.59871    0   73    8.00000   10.59871  32.5%     -    0s
     0     0   10.59558    0   73    8.00000   10.59558  32.4%     -    0s
     0     0   10.59485    0   73    8.00000   10.59485  32.4%     -    0s
     0     0   10.59314    0   73    8.00000   10.59314  32.4%     -    0s
     0     2   10.58831    0   73    8.00000   10.58831  32.4%     -    0s

Cutting planes:
  Clique: 45
  Zero half: 1

Explored 33 nodes (2091 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%