Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:48:50 2012

Optimize a model with 357 rows, 81 columns and 714 nonzeros
Presolve removed 108 rows and 0 columns
Presolve time: 0.00s
Presolved: 249 rows, 81 columns, 591 nonzeros
Variable types: 0 continuous, 81 integer (81 binary)
Found heuristic solution: objective 23.0000000

Root relaxation: objective 3.064286e+01, 169 iterations, 0.00 seconds

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

     0     0   30.64286    0   74   23.00000   30.64286  33.2%     -    0s
H    0     0                      24.0000000   30.64286  27.7%     -    0s
     0     0   29.92308    0   79   24.00000   29.92308  24.7%     -    0s
     0     0   29.84884    0   79   24.00000   29.84884  24.4%     -    0s
     0     0   29.64671    0   79   24.00000   29.64671  23.5%     -    0s
     0     0   29.43284    0   79   24.00000   29.43284  22.6%     -    0s
H    0     0                      25.0000000   29.43284  17.7%     -    0s
     0     0   29.42053    0   79   25.00000   29.42053  17.7%     -    0s
     0     0   29.42053    0   78   25.00000   29.42053  17.7%     -    0s
H    0     0                      26.0000000   29.42053  13.2%     -    0s
     0     2   29.40725    0   78   26.00000   29.40725  13.1%     -    0s

Cutting planes:
  Gomory: 2
  Zero half: 40

Explored 81 nodes (2084 simplex iterations) in 0.09 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.600000000000e+01, best bound 2.600000000000e+01, gap 0.0%