Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:41:47 2013

Optimize a model with 1320 rows, 6060 columns and 15100 nonzeros
Presolve removed 20 rows and 20 columns
Presolve time: 0.08s
Presolved: 1300 rows, 6040 columns, 14080 nonzeros
Variable types: 5040 continuous, 1000 integer (1000 binary)

Root relaxation: objective 4.642213e+04, 518 iterations, 0.02 seconds

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

     0     0 46422.1265    0    6          - 46422.1265     -      -    0s
     0     0 46495.4343    0    4          - 46495.4343     -      -    0s
     0     0 46495.8226    0    5          - 46495.8226     -      -    0s
     0     0 46496.9649    0    4          - 46496.9649     -      -    0s
     0     0 46497.2226    0    5          - 46497.2226     -      -    0s
     0     0 46497.3448    0    5          - 46497.3448     -      -    0s
     0     0 46497.3448    0    5          - 46497.3448     -      -    0s
     0     0 46497.3448    0    5          - 46497.3448     -      -    0s
     0     2 46497.3448    0    5          - 46497.3448     -      -    0s
*   17     5               9    46743.774076 46743.6441  0.00%  30.9    0s

Cutting planes:
  Gomory: 1
  Implied bound: 29
  Flow cover: 6

Explored 18 nodes (1390 simplex iterations) in 0.72 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.674377407618e+04, best bound 4.674364411617e+04, gap 0.0003%