Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:15:36 2013

Optimize a model with 44 rows, 116 columns and 378 nonzeros
Presolve removed 22 rows and 50 columns
Presolve time: 0.00s
Presolved: 22 rows, 66 columns, 290 nonzeros
Variable types: 58 continuous, 8 integer (8 binary)

Root relaxation: objective 4.440467e+03, 11 iterations, 0.00 seconds

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

     0     0 4440.46714    0    2          - 4440.46714     -      -    0s
     0     0 4446.78799    0    2          - 4446.78799     -      -    0s
     0     0 4449.00409    0    2          - 4449.00409     -      -    0s
     0     0 4449.69039    0    4          - 4449.69039     -      -    0s
     0     0 4449.97567    0    4          - 4449.97567     -      -    0s
     0     0 4450.16769    0    4          - 4450.16769     -      -    0s
     0     0 4450.20992    0    4          - 4450.20992     -      -    0s
     0     0 4457.04103    0    2          - 4457.04103     -      -    0s
*    0     0               0    4458.6668289 4458.66683   0.0%     -    0s

Cutting planes:
  Gomory: 2
  Implied bound: 2
  Flow cover: 1

Explored 0 nodes (43 simplex iterations) in 0.02 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.458666828911e+03, best bound 4.458666828911e+03, gap 0.0%