Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:49:03 2012

Optimize a model with 423 rows, 93 columns and 846 nonzeros
Presolve removed 140 rows and 0 columns
Presolve time: 0.00s
Presolved: 283 rows, 93 columns, 683 nonzeros
Variable types: 0 continuous, 93 integer (93 binary)
Found heuristic solution: objective 25.0000000

Root relaxation: objective 3.413636e+01, 171 iterations, 0.00 seconds

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

     0     0   34.13636    0   89   25.00000   34.13636  36.5%     -    0s
     0     0   33.23153    0   90   25.00000   33.23153  32.9%     -    0s
H    0     0                      26.0000000   33.23153  27.8%     -    0s
     0     0   32.66667    0   80   26.00000   32.66667  25.6%     -    0s
     0     0   32.48845    0   91   26.00000   32.48845  25.0%     -    0s
     0     0   32.45619    0   93   26.00000   32.45619  24.8%     -    0s
     0     0   32.35995    0   90   26.00000   32.35995  24.5%     -    0s
     0     0   32.32779    0   90   26.00000   32.32779  24.3%     -    0s
H    0     0                      27.0000000   32.32779  19.7%     -    0s
     0     0   32.17936    0   90   27.00000   32.17936  19.2%     -    0s
     0     0   32.13041    0   90   27.00000   32.13041  19.0%     -    0s
     0     0   32.12318    0   91   27.00000   32.12318  19.0%     -    0s
     0     0   32.12318    0   88   27.00000   32.12318  19.0%     -    0s
     0     2   32.12318    0   88   27.00000   32.12318  19.0%     -    0s
*   29    15               6      28.0000000   32.07638  14.6%  23.0    0s
*   91    14               9      29.0000000   30.95122  6.73%  24.3    0s

Cutting planes:
  Clique: 2
  Zero half: 61

Explored 127 nodes (3518 simplex iterations) in 0.15 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%