Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:55:47 2013

Optimize a model with 720 rows, 4860 columns and 10900 nonzeros
Presolve removed 20 rows and 20 columns
Presolve time: 0.03s
Presolved: 700 rows, 4840 columns, 10480 nonzeros
Variable types: 4440 continuous, 400 integer (400 binary)

Root relaxation: objective 4.636776e+04, 613 iterations, 0.01 seconds

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

     0     0 46367.7551    0    4          - 46367.7551     -      -    0s
H    0     0                    47146.471060 46367.7551  1.65%     -    0s
     0     0 46434.1723    0    8 47146.4711 46434.1723  1.51%     -    0s
     0     0 46440.6255    0    6 47146.4711 46440.6255  1.50%     -    0s
     0     0 46440.8363    0    6 47146.4711 46440.8363  1.50%     -    0s
     0     0 46440.8363    0    6 47146.4711 46440.8363  1.50%     -    0s
     0     2 46440.8363    0    6 47146.4711 46440.8363  1.50%     -    0s
*   16     7               9    46655.515381 46652.5655  0.01%  26.7    0s

Cutting planes:
  Gomory: 2
  Implied bound: 15
  Flow cover: 2

Explored 17 nodes (1253 simplex iterations) in 0.20 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.665551538137e+04, best bound 4.665256552782e+04, gap 0.0063%