Gurobi 5.0.1 (linux64) logging started Fri Jan 18 07:56:17 2013

Optimize a model with 1700 rows, 128000 columns and 1351050 nonzeros
Presolve removed 50 rows and 2450 columns
Presolve time: 3.76s
Presolved: 1650 rows, 125550 columns, 1251050 nonzeros
Variable types: 125050 continuous, 500 integer (500 binary)

Root relaxation: objective 1.824192e+05, 3194 iterations, 0.34 seconds

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

     0     0 182419.206    0    8          - 182419.206     -      -    4s
     0     0 182420.768    0    8          - 182420.768     -      -    6s
     0     0 182421.126    0    8          - 182421.126     -      -    6s
     0     0 182421.126    0    8          - 182421.126     -      -    7s
     0     2 182421.254    0    8          - 182421.254     -      -   20s
    86    88 182913.221   75    8          - 182467.364     -   11.0   25s
*  152    86             136    182922.57517 182467.364  0.25%   6.9   27s
*  168    34              18    182879.22514 182493.641  0.21%   8.3   27s
   211    43 182612.292    9    5 182879.225 182573.997  0.17%  11.2   30s
   401    55 182865.371   26    8 182879.225 182770.952  0.06%   9.6   35s
   601    64 182817.629   12    8 182879.225 182815.223  0.03%   9.4   46s
   607    68 182854.618   27   16 182879.225 182815.223  0.03%   9.3   51s
   619    69 182853.880   17    8 182879.225 182853.880  0.01%  18.1   55s

Cutting planes:
  Flow cover: 3

Explored 621 nodes (15360 simplex iterations) in 55.62 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.828792251419e+05, best bound 1.828674241556e+05, gap 0.0065%