Gurobi 5.0.1 (linux64) logging started Fri Jan 18 02:46:27 2013

Optimize a model with 570 rows, 1760 columns and 4505 nonzeros
Presolve removed 10 rows and 15 columns
Presolve time: 0.05s
Presolved: 560 rows, 1745 columns, 3490 nonzeros
Variable types: 1250 continuous, 495 integer (495 binary)

Root relaxation: objective 1.309958e+04, 55 iterations, 0.00 seconds

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

     0     0 13099.5797    0    1          - 13099.5797     -      -    0s
     0     0 13100.1295    0    2          - 13100.1295     -      -    0s
     0     2 13100.4240    0    2          - 13100.4240     -      -    0s
*  106    59             105    13276.021371 13130.1004  1.10%   2.0    0s
*  110     0               4    13130.100441 13130.1004   0.0%   2.1    0s

Cutting planes:
  Gomory: 1
  Flow cover: 1

Explored 111 nodes (382 simplex iterations) in 0.24 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.313010044137e+04, best bound 1.313010044137e+04, gap 0.0%