Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:55:34 2013

Optimize a model with 680 rows, 5240 columns and 11220 nonzeros
Presolve removed 40 rows and 60 columns
Presolve time: 0.03s
Presolved: 640 rows, 5180 columns, 10360 nonzeros
Variable types: 4800 continuous, 380 integer (380 binary)

Root relaxation: objective 4.636776e+04, 603 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    2          - 46367.7551     -      -    0s
     0     0 46393.1864    0    4          - 46393.1864     -      -    0s
     0     0 46395.6768    0    4          - 46395.6768     -      -    0s
     0     0 46395.8471    0    4          - 46395.8471     -      -    0s
     0     0 46395.8471    0    4          - 46395.8471     -      -    0s
H    0     0                    47146.471060 46395.8471  1.59%     -    0s
     0     2 46397.4872    0    4 47146.4711 46397.4872  1.59%     -    0s
*   10     7               8    46653.669952 46455.0213  0.43%  13.2    0s

Cutting planes:
  Gomory: 2
  Flow cover: 5

Explored 33 nodes (1142 simplex iterations) in 0.23 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.665366995229e+04, best bound 4.665366995229e+04, gap 0.0%