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

Optimize a model with 315 rows, 79 columns and 630 nonzeros
Presolve removed 93 rows and 0 columns
Presolve time: 0.00s
Presolved: 222 rows, 79 columns, 514 nonzeros
Variable types: 0 continuous, 79 integer (79 binary)
Found heuristic solution: objective 25.0000000

Root relaxation: objective 3.056522e+01, 131 iterations, 0.00 seconds

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

     0     0   30.56522    0   71   25.00000   30.56522  22.3%     -    0s
H    0     0                      26.0000000   30.56522  17.6%     -    0s
     0     0   29.88889    0   77   26.00000   29.88889  15.0%     -    0s
H    0     0                      27.0000000   29.88889  10.7%     -    0s
     0     0   29.52941    0   73   27.00000   29.52941  9.37%     -    0s
     0     0   29.13864    0   78   27.00000   29.13864  7.92%     -    0s
     0     0   29.06408    0   76   27.00000   29.06408  7.64%     -    0s
     0     0   29.03810    0   76   27.00000   29.03810  7.55%     -    0s
     0     0   29.03653    0   77   27.00000   29.03653  7.54%     -    0s
     0     0   29.03653    0   77   27.00000   29.03653  7.54%     -    0s
     0     2   29.03653    0   76   27.00000   29.03653  7.54%     -    0s

Cutting planes:
  Clique: 1
  Zero half: 27

Explored 19 nodes (822 simplex iterations) in 0.05 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.700000000000e+01, best bound 2.700000000000e+01, gap 0.0%