Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:48:56 2012

Optimize a model with 366 rows, 88 columns and 732 nonzeros
Presolve removed 113 rows and 0 columns
Presolve time: 0.00s
Presolved: 253 rows, 88 columns, 599 nonzeros
Variable types: 0 continuous, 88 integer (88 binary)
Found heuristic solution: objective 27.0000000

Root relaxation: objective 3.277778e+01, 146 iterations, 0.00 seconds

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

     0     0   32.77778    0   82   27.00000   32.77778  21.4%     -    0s
     0     0   32.00000    0   81   27.00000   32.00000  18.5%     -    0s
     0     0   32.00000    0   80   27.00000   32.00000  18.5%     -    0s
     0     0   31.69892    0   81   27.00000   31.69892  17.4%     -    0s
     0     0   31.50545    0   82   27.00000   31.50545  16.7%     -    0s
H    0     0                      28.0000000   31.50545  12.5%     -    0s
     0     0   31.42394    0   83   28.00000   31.42394  12.2%     -    0s
     0     0   31.30000    0   83   28.00000   31.30000  11.8%     -    0s
     0     0   31.23120    0   83   28.00000   31.23120  11.5%     -    0s
     0     0   31.22195    0   85   28.00000   31.22195  11.5%     -    0s
     0     0   31.22195    0   82   28.00000   31.22195  11.5%     -    0s
     0     2   31.20946    0   82   28.00000   31.20946  11.5%     -    0s
*  110     1               6      29.0000000   30.00000  3.45%  19.3    0s

Cutting planes:
  Gomory: 1
  Zero half: 47

Explored 112 nodes (2700 simplex iterations) in 0.11 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.900000000000e+01, best bound 2.900000000000e+01, gap 0.0%