Gurobi 5.0.1 (linux64) logging started Tue Nov 20 06:15:32 2012

Optimize a model with 895 rows, 134 columns and 1790 nonzeros
Presolve removed 349 rows and 0 columns
Presolve time: 0.01s
Presolved: 546 rows, 134 columns, 1416 nonzeros
Variable types: 0 continuous, 134 integer (134 binary)
Found heuristic solution: objective 30.0000000

Root relaxation: objective 4.445287e+01, 330 iterations, 0.01 seconds

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

     0     0   44.45287    0  134   30.00000   44.45287  48.2%     -    0s
     0     0   44.06194    0  134   30.00000   44.06194  46.9%     -    0s
H    0     0                      31.0000000   44.06194  42.1%     -    0s
     0     0   43.42087    0  134   31.00000   43.42087  40.1%     -    0s
     0     0   43.28786    0  132   31.00000   43.28786  39.6%     -    0s
     0     0   43.18637    0  133   31.00000   43.18637  39.3%     -    0s
     0     0   43.11302    0  134   31.00000   43.11302  39.1%     -    0s
     0     0   42.97715    0  133   31.00000   42.97715  38.6%     -    0s
     0     0   42.95554    0  132   31.00000   42.95554  38.6%     -    0s
H    0     0                      34.0000000   42.95554  26.3%     -    0s
     0     0   42.95080    0  133   34.00000   42.95080  26.3%     -    0s
     0     0   42.95080    0  133   34.00000   42.95080  26.3%     -    0s
     0     2   42.94906    0  133   34.00000   42.94906  26.3%     -    0s
H   15    15                      36.0000000   42.94701  19.3%  60.4    0s
   613   150   40.20455    6  133   36.00000   40.20455  11.7%  37.6    5s

Cutting planes:
  Gomory: 4
  Zero half: 40

Explored 1560 nodes (59643 simplex iterations) in 7.91 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.600000000000e+01, best bound 3.600000000000e+01, gap 0.0%