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

Optimize a model with 1368 rows, 74 columns and 2736 nonzeros
Presolve removed 968 rows and 0 columns
Presolve time: 0.04s
Presolved: 400 rows, 74 columns, 2535 nonzeros
Variable types: 0 continuous, 74 integer (74 binary)
Found heuristic solution: objective 6.0000000

Root relaxation: objective 1.154110e+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   11.54110    0   68    6.00000   11.54110  92.4%     -    0s
H    0     0                       7.0000000   11.54110  64.9%     -    0s
     0     0   11.08930    0   70    7.00000   11.08930  58.4%     -    0s
H    0     0                       8.0000000   11.08930  38.6%     -    0s
     0     0   11.00471    0   70    8.00000   11.00471  37.6%     -    0s
     0     0   10.98888    0   69    8.00000   10.98888  37.4%     -    0s
     0     0   10.98338    0   71    8.00000   10.98338  37.3%     -    0s
     0     0   10.96532    0   72    8.00000   10.96532  37.1%     -    0s
     0     0   10.96281    0   72    8.00000   10.96281  37.0%     -    0s
     0     0   10.96196    0   73    8.00000   10.96196  37.0%     -    0s
     0     2   10.96063    0   73    8.00000   10.96063  37.0%     -    0s

Cutting planes:
  Clique: 49
  Zero half: 9

Explored 51 nodes (2838 simplex iterations) in 0.34 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%