Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:26 2012

Optimize a model with 366 rows, 122 columns and 732 nonzeros
Presolve removed 63 rows and 3 columns
Presolve time: 0.00s
Presolved: 303 rows, 119 columns, 634 nonzeros
Variable types: 0 continuous, 119 integer (119 binary)
Found heuristic solution: objective 46.0000000

Root relaxation: objective 5.400000e+01, 189 iterations, 0.00 seconds

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

     0     0   54.00000    0   98   46.00000   54.00000  17.4%     -    0s
     0     0   52.50000    0   87   46.00000   52.50000  14.1%     -    0s
     0     0   52.12500    0  108   46.00000   52.12500  13.3%     -    0s
     0     0   51.61765    0  111   46.00000   51.61765  12.2%     -    0s
     0     0   51.37799    0  118   46.00000   51.37799  11.7%     -    0s
     0     0   50.91793    0  116   46.00000   50.91793  10.7%     -    0s
     0     0   50.71944    0  119   46.00000   50.71944  10.3%     -    0s
H    0     0                      47.0000000   50.71944  7.91%     -    0s
     0     0   50.42857    0  113   47.00000   50.42857  7.29%     -    0s
     0     0   50.41516    0  118   47.00000   50.41516  7.27%     -    0s
     0     0   50.41516    0  118   47.00000   50.41516  7.27%     -    0s
     0     2   50.41129    0  118   47.00000   50.41129  7.26%     -    0s
H   17     5                      48.0000000   50.00000  4.17%  24.6    0s

Cutting planes:
  Gomory: 1
  Zero half: 47

Explored 33 nodes (1594 simplex iterations) in 0.08 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.800000000000e+01, best bound 4.800000000000e+01, gap 0.0%