Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:19:36 2013

Optimize a model with 1350 rows, 400 columns and 4200 nonzeros
Presolve removed 363 rows and 210 columns
Presolve time: 0.01s
Presolved: 987 rows, 190 columns, 3131 nonzeros
Variable types: 10 continuous, 180 integer (180 binary)
Found heuristic solution: objective 5754.0000000

Root relaxation: objective 4.108730e+03, 691 iterations, 0.01 seconds

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

     0     0 4108.73043    0    8 5754.00000 4108.73043  28.6%     -    0s
H    0     0                    4132.0000000 4108.73043  0.56%     -    0s
H    0     0                    4128.0000000 4108.73043  0.47%     -    0s
H    0     0                    4124.0000000 4108.73043  0.37%     -    0s
     0     0 4112.52472    0   14 4124.00000 4112.52472  0.28%     -    0s
     0     0 4112.52472    0    8 4124.00000 4112.52472  0.28%     -    0s
H    0     0                    4118.0000000 4112.52472  0.13%     -    0s
     0     0 4112.78476    0   17 4118.00000 4112.78476  0.13%     -    0s
     0     1 4113.33274    0   17 4118.00000 4113.33274  0.11%     -    0s

Cutting planes:
  Gomory: 5
  Implied bound: 2
  MIR: 10
  Zero half: 3

Explored 4 nodes (807 simplex iterations) in 0.05 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.118000000000e+03, best bound 4.118000000000e+03, gap 0.0%