Gurobi 5.0.1 (linux64) logging started Mon Feb  4 20:11:40 2013

Optimize a model with 457450 rows, 19600 columns and 1381800 nonzeros
Presolve removed 13367 rows and 9823 columns
Presolve time: 4.92s
Presolved: 444083 rows, 9777 columns, 1342250 nonzeros
Variable types: 73 continuous, 9704 integer (9704 binary)
Found heuristic solution: objective 409246.00000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   11340    2.3053363e+05   0.000000e+00   1.775981e+09      5s
   23625    2.3404613e+05   0.000000e+00   9.656186e+08     10s
   40635    2.4475351e+05   0.000000e+00   5.318825e+08     15s
   60480    2.5281800e+05   0.000000e+00   6.381212e+07     20s
   78441    2.6069421e+05   0.000000e+00   4.232585e+08     25s
   97359    2.7349557e+05   0.000000e+00   1.073853e+07     30s
  107937    2.7953767e+05   0.000000e+00   0.000000e+00     35s
  107937    2.7953767e+05   0.000000e+00   0.000000e+00     35s

Root relaxation: objective 2.795377e+05, 107937 iterations, 34.82 seconds

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

     0     0 279537.667    0   16 409246.000 279537.667  31.7%     -   42s
H    0     0                    279547.00000 279537.667  0.00%     -   42s

Explored 0 nodes (108608 simplex iterations) in 42.57 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.795470000000e+05, best bound 2.795380000000e+05, gap 0.0032%