Gurobi 5.0.1 (linux64) logging started Mon Feb  4 20:04:25 2013

Optimize a model with 457450 rows, 19600 columns and 1381800 nonzeros
Presolve removed 19619 rows and 9887 columns (presolve time = 5s) ...
Presolve removed 21090 rows and 9897 columns
Presolve time: 6.54s
Presolved: 436360 rows, 9703 columns, 1316750 nonzeros
Variable types: 56 continuous, 9647 integer (9647 binary)
Found heuristic solution: objective 458802.00000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   10395    3.0041551e+05   0.000000e+00   3.257070e+08      5s
   28350    3.1177893e+05   0.000000e+00   6.368882e+07     10s
   47250    3.2322384e+05   0.000000e+00   2.586614e+07     15s
   66150    3.3540429e+05   0.000000e+00   4.346458e+06     20s
   74655    3.3832613e+05   0.000000e+00   1.244817e+05     25s
   75364    3.3832517e+05   0.000000e+00   0.000000e+00     26s
   75364    3.3832517e+05   0.000000e+00   0.000000e+00     26s

Root relaxation: objective 3.383252e+05, 75364 iterations, 26.21 seconds

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

     0     0 338325.167    0   26 458802.000 338325.167  26.3%     -   35s
H    0     0                    338344.00000 338325.167  0.01%     -   35s

Explored 0 nodes (75731 simplex iterations) in 35.45 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.383440000000e+05, best bound 3.383260000000e+05, gap 0.0053%