Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:48:54 2012

Optimize a model with 349 rows, 86 columns and 698 nonzeros
Presolve removed 89 rows and 0 columns
Presolve time: 0.00s
Presolved: 260 rows, 86 columns, 585 nonzeros
Variable types: 0 continuous, 86 integer (86 binary)
Found heuristic solution: objective 28.0000000

Root relaxation: objective 3.450000e+01, 140 iterations, 0.00 seconds

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

     0     0   34.50000    0   65   28.00000   34.50000  23.2%     -    0s
     0     0   33.00000    0   75   28.00000   33.00000  17.9%     -    0s
     0     0   32.34959    0   80   28.00000   32.34959  15.5%     -    0s
     0     0   32.20000    0   80   28.00000   32.20000  15.0%     -    0s
     0     0   31.98621    0   81   28.00000   31.98621  14.2%     -    0s
     0     0   31.62570    0   77   28.00000   31.62570  12.9%     -    0s
H    0     0                      29.0000000   31.62570  9.05%     -    0s
     0     0   31.59786    0   80   29.00000   31.59786  8.96%     -    0s
     0     0   31.47648    0   81   29.00000   31.47648  8.54%     -    0s
     0     0   31.36865    0   85   29.00000   31.36865  8.17%     -    0s
     0     0   31.23889    0   86   29.00000   31.23889  7.72%     -    0s
     0     0   31.23611    0   86   29.00000   31.23611  7.71%     -    0s
     0     0   31.23611    0   84   29.00000   31.23611  7.71%     -    0s
     0     2   31.22857    0   84   29.00000   31.22857  7.68%     -    0s
*    7     3               3      30.0000000   31.00000  3.33%  35.3    0s

Cutting planes:
  Zero half: 40

Explored 10 nodes (843 simplex iterations) in 0.07 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.000000000000e+01, best bound 3.000000000000e+01, gap 0.0%