Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:49:14 2012

Optimize a model with 524 rows, 98 columns and 1048 nonzeros
Presolve removed 197 rows and 0 columns
Presolve time: 0.00s
Presolved: 327 rows, 98 columns, 816 nonzeros
Variable types: 0 continuous, 98 integer (98 binary)
Found heuristic solution: objective 26.0000000

Root relaxation: objective 3.334509e+01, 186 iterations, 0.00 seconds

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

     0     0   33.34509    0   95   26.00000   33.34509  28.3%     -    0s
     0     0   32.86973    0   95   26.00000   32.86973  26.4%     -    0s
     0     0   32.74662    0   96   26.00000   32.74662  25.9%     -    0s
H    0     0                      27.0000000   32.74662  21.3%     -    0s
     0     0   32.70338    0   97   27.00000   32.70338  21.1%     -    0s
     0     0   32.60655    0   95   27.00000   32.60655  20.8%     -    0s
     0     0   32.47549    0   96   27.00000   32.47549  20.3%     -    0s
     0     0   32.39296    0   96   27.00000   32.39296  20.0%     -    0s
     0     0   32.24098    0   96   27.00000   32.24098  19.4%     -    0s
     0     0   32.20249    0   96   27.00000   32.20249  19.3%     -    0s
     0     0   32.18600    0   96   27.00000   32.18600  19.2%     -    0s
     0     0   32.16553    0   95   27.00000   32.16553  19.1%     -    0s
     0     0   32.15504    0   96   27.00000   32.15504  19.1%     -    0s
     0     0   32.15504    0   96   27.00000   32.15504  19.1%     -    0s
     0     2   32.14925    0   95   27.00000   32.14925  19.1%     -    0s
*  115    23              11      28.0000000   31.08000  11.0%  28.9    0s

Cutting planes:
  Clique: 1
  Zero half: 39

Explored 240 nodes (6594 simplex iterations) in 0.26 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.800000000000e+01, best bound 2.800000000000e+01, gap 0.0%