Gurobi 5.0.1 (linux64) logging started Fri Jan 18 02:46:24 2013

Optimize a model with 1070 rows, 1260 columns and 4505 nonzeros
Presolve removed 15 rows and 10 columns
Presolve time: 0.06s
Presolved: 1055 rows, 1250 columns, 3490 nonzeros
Variable types: 755 continuous, 495 integer (495 binary)

Root relaxation: objective 1.174557e+04, 414 iterations, 0.00 seconds

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

     0     0 11745.5748    0    1          - 11745.5748     -      -    0s
     0     0 11770.8641    0    2          - 11770.8641     -      -    0s
     0     0 11774.0525    0    3          - 11774.0525     -      -    0s
     0     2 11774.0989    0    3          - 11774.0989     -      -    0s
H    7     3                    11781.217036 11777.5866  0.03%   2.0    0s
*    8     3               8    11779.402625 11779.4026   0.0%   4.4    0s

Cutting planes:
  Flow cover: 3

Explored 9 nodes (465 simplex iterations) in 0.17 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.177940262477e+04, best bound 1.177940262477e+04, gap 0.0%