Gurobi 5.0.1 (linux64) logging started Mon Feb  4 20:12:37 2013

Optimize a model with 562625 rows, 22500 columns and 1698750 nonzeros
Presolve removed 26190 rows and 11394 columns (presolve time = 5s) ...
Presolve removed 32053 rows and 11417 columns
Presolve time: 9.11s
Presolved: 530572 rows, 11083 columns, 1599352 nonzeros
Variable types: 52 continuous, 11031 integer (11031 binary)
Found heuristic solution: objective 533386.00000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    9648    3.7585356e+05   0.000000e+00   2.617134e+09      5s
   22512    3.8099765e+05   0.000000e+00   1.049080e+09     10s
   36448    3.9067333e+05   0.000000e+00   8.546696e+07     15s
   55744    4.0278715e+05   0.000000e+00   1.728647e+07     20s
   72896    4.1516122e+05   0.000000e+00   1.448365e+06     25s
   76402    4.1747605e+05   0.000000e+00   0.000000e+00     28s
   76402    4.1747605e+05   0.000000e+00   0.000000e+00     29s

Root relaxation: objective 4.174761e+05, 76402 iterations, 28.63 seconds
Total elapsed time = 40.22s

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

     0     0 417476.055    0   10 533386.000 417476.055  21.7%     -   41s
H    0     0                    417479.00000 417476.055  0.00%     -   41s

Explored 0 nodes (76547 simplex iterations) in 41.64 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.174790000000e+05, best bound 4.174770000000e+05, gap 0.0005%