Gurobi 5.0.1 (linux64) logging started Mon Feb  4 20:16:32 2013

Optimize a model with 562625 rows, 22500 columns and 1698750 nonzeros
Presolve removed 21081 rows and 11350 columns (presolve time = 5s) ...
Presolve removed 23770 rows and 11352 columns
Presolve time: 8.22s
Presolved: 538855 rows, 11148 columns, 1625237 nonzeros
Variable types: 59 continuous, 11089 integer (11089 binary)
Found heuristic solution: objective 507491.00000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    8576    3.4240029e+05   0.000000e+00   2.975856e+09      5s
   18224    3.4533756e+05   0.000000e+00   2.185115e+09     10s
   30016    3.4822739e+05   0.000000e+00   7.219816e+08     15s
   45024    3.5532299e+05   0.000000e+00   2.003345e+08     20s
   63248    3.6469085e+05   0.000000e+00   7.695605e+07     25s
   81472    3.7889250e+05   0.000000e+00   1.177494e+07     30s
   98624    3.8959581e+05   0.000000e+00   2.219560e+06     35s
  109344    3.9440478e+05   0.000000e+00   3.972306e+03     41s
  109509    3.9439233e+05   0.000000e+00   0.000000e+00     41s
  109509    3.9439233e+05   0.000000e+00   0.000000e+00     41s

Root relaxation: objective 3.943923e+05, 109509 iterations, 41.16 seconds

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

     0     0 394392.329    0   20 507491.000 394392.329  22.3%     -   52s
H    0     0                    394411.00000 394392.329  0.00%     -   52s

Explored 0 nodes (109809 simplex iterations) in 52.84 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.944110000000e+05, best bound 3.943930000000e+05, gap 0.0046%