Gurobi 5.0.1 (linux64) logging started Fri Jan 18 02:46:31 2013

Optimize a model with 140 rows, 1575 columns and 10575 nonzeros
Presolve removed 5 rows and 285 columns
Presolve time: 0.01s
Presolved: 135 rows, 1290 columns, 9575 nonzeros
Variable types: 1255 continuous, 35 integer (35 binary)

Root relaxation: objective 1.174557e+04, 52 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    4          - 11745.5748     -      -    0s
     0     0 11745.9187    0    7          - 11745.9187     -      -    0s
     0     0 11772.3944    0    7          - 11772.3944     -      -    0s
     0     0 11776.2977    0    3          - 11776.2977     -      -    0s
     0     0 11776.2977    0    3          - 11776.2977     -      -    0s
     0     0 11776.2977    0    3          - 11776.2977     -      -    0s
     0     0 11776.3669    0    6          - 11776.3669     -      -    0s
     0     0 11776.3675    0    6          - 11776.3675     -      -    0s
     0     0 11776.3675    0    6          - 11776.3675     -      -    0s
     0     2 11776.4147    0    6          - 11776.4147     -      -    0s
*   13     5               9    11801.047908 11776.4147  0.21%   7.3    0s
*   24     6               9    11781.581223 11777.9553  0.03%   5.0    0s
*   25     5               8    11780.901979 11777.9553  0.03%   4.8    0s
*   31     4               5    11779.402625 11778.4406  0.01%   4.2    0s

Cutting planes:
  Gomory: 1
  Flow cover: 2

Explored 32 nodes (478 simplex iterations) in 0.25 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.177940262477e+04, best bound 1.177844063924e+04, gap 0.0082%