Gurobi 5.0.1 (linux64) logging started Mon Feb  4 19:49:01 2013

Optimize a model with 221925 rows, 12100 columns and 671550 nonzeros
Presolve removed 13446 rows and 6133 columns
Presolve time: 3.01s
Presolved: 208479 rows, 5967 columns, 629927 nonzeros
Variable types: 42 continuous, 5925 integer (5925 binary)
Found heuristic solution: objective 232877.00000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   25807    1.6466231e+05   0.000000e+00   9.862895e+06      5s
   37649    1.7274131e+05   0.000000e+00   0.000000e+00      7s
   37649    1.7274131e+05   0.000000e+00   0.000000e+00      8s

Root relaxation: objective 1.727413e+05, 37649 iterations, 7.50 seconds

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

     0     0 172741.308    0   16 232877.000 172741.308  25.8%     -   12s
H    0     0                    172752.00000 172741.308  0.01%     -   12s

Explored 0 nodes (38280 simplex iterations) in 12.35 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.727520000000e+05, best bound 1.727420000000e+05, gap 0.0058%