Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:48:55 2012

Optimize a model with 360 rows, 87 columns and 720 nonzeros
Presolve removed 118 rows and 0 columns
Presolve time: 0.00s
Presolved: 242 rows, 87 columns, 574 nonzeros
Variable types: 0 continuous, 87 integer (87 binary)
Found heuristic solution: objective 28.0000000

Root relaxation: objective 3.357143e+01, 170 iterations, 0.00 seconds

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

     0     0   33.57143    0   83   28.00000   33.57143  19.9%     -    0s
H    0     0                      29.0000000   33.57143  15.8%     -    0s
     0     0   33.00000    0   85   29.00000   33.00000  13.8%     -    0s
H    0     0                      30.0000000   33.00000  10.0%     -    0s
     0     0   32.95098    0   87   30.00000   32.95098  9.84%     -    0s
     0     0   32.76701    0   85   30.00000   32.76701  9.22%     -    0s
     0     0   32.64684    0   85   30.00000   32.64684  8.82%     -    0s
     0     0   32.40000    0   82   30.00000   32.40000  8.00%     -    0s
     0     0   32.25000    0   81   30.00000   32.25000  7.50%     -    0s
     0     0   32.12308    0   86   30.00000   32.12308  7.08%     -    0s
     0     0   32.00000    0   82   30.00000   32.00000  6.67%     -    0s
     0     0   31.91139    0   84   30.00000   31.91139  6.37%     -    0s
     0     0   31.80000    0   84   30.00000   31.80000  6.00%     -    0s
     0     0   31.80000    0   85   30.00000   31.80000  6.00%     -    0s
     0     0   31.80000    0   83   30.00000   31.80000  6.00%     -    0s
     0     2   31.80000    0   83   30.00000   31.80000  6.00%     -    0s

Cutting planes:
  Clique: 1
  Zero half: 30

Explored 25 nodes (1134 simplex iterations) in 0.08 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%