Gurobi 5.0.1 (linux64) logging started Mon Feb  4 20:56:24 2013

Optimize a model with 818975 rows, 28900 columns and 2470950 nonzeros
Presolve removed 24988 rows and 14530 columns (presolve time = 5s) ...
Presolve removed 29401 rows and 14559 columns (presolve time = 10s) ...
Presolve removed 29563 rows and 14559 columns
Presolve time: 12.82s
Presolved: 789412 rows, 14341 columns, 2379421 nonzeros
Variable types: 67 continuous, 14274 integer (14274 binary)
Found heuristic solution: objective 651642.00000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    6750    4.3903060e+05   0.000000e+00   8.580234e+09      6s
   14850    4.3986299e+05   0.000000e+00   6.103314e+08     11s
   21600    4.4125926e+05   0.000000e+00   1.072690e+09     15s
   31050    4.4294693e+05   0.000000e+00   1.346580e+09     20s
   40520    4.4499344e+05   0.000000e+00   1.313107e+08     25s
   48620    4.4597338e+05   0.000000e+00   1.248874e+09     31s
   55370    4.4689342e+05   0.000000e+00   4.161904e+08     35s
   64827    4.4841387e+05   0.000000e+00   1.235961e+09     40s
   76977    4.5149390e+05   0.000000e+00   8.968084e+09     46s
   89145    4.5337494e+05   0.000000e+00   8.520241e+08     50s
   99945    4.5483094e+05   0.000000e+00   7.825196e+08     55s
  112095    4.5756832e+05   0.000000e+00   7.184079e+08     60s
  124245    4.5995674e+05   0.000000e+00   8.379674e+08     66s
  135045    4.6255029e+05   0.000000e+00   3.900418e+09     70s
  151245    4.6665584e+05   0.000000e+00   1.304173e+09     75s
  167445    4.7164779e+05   0.000000e+00   1.319161e+09     80s
  182295    4.7668760e+05   0.000000e+00   2.265213e+07     85s
  197145    4.8560602e+05   0.000000e+00   1.049727e+07     90s
  210645    4.9368242e+05   0.000000e+00   2.828228e+07     95s
  220095    4.9876131e+05   0.000000e+00   8.914426e+05    101s
  222795    4.9878291e+05   0.000000e+00   7.014799e+03    105s
  223203    4.9876736e+05   0.000000e+00   0.000000e+00    106s
  223203    4.9876736e+05   0.000000e+00   0.000000e+00    106s

Root relaxation: objective 4.987674e+05, 223203 iterations, 105.81 seconds

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

     0     0 498767.364    0   18 651642.000 498767.364  23.5%     -  123s
H    0     0                    498784.00000 498767.364  0.00%     -  123s

Explored 0 nodes (223398 simplex iterations) in 123.92 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.987840000000e+05, best bound 4.987680000000e+05, gap 0.0032%