Gurobi 5.0.1 (linux64) logging started Mon Feb  4 19:47:47 2013

Optimize a model with 221925 rows, 12100 columns and 671550 nonzeros
Presolve removed 10187 rows and 6092 columns
Presolve time: 2.93s
Presolved: 211738 rows, 6008 columns, 640772 nonzeros
Variable types: 52 continuous, 5956 integer (5956 binary)
Found heuristic solution: objective 271669.00000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   26320    1.7419329e+05   0.000000e+00   2.699236e+07      5s
   50256    1.8959453e+05   0.000000e+00   0.000000e+00      9s
   50256    1.8959453e+05   0.000000e+00   0.000000e+00      9s

Root relaxation: objective 1.895945e+05, 50256 iterations, 8.96 seconds

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

     0     0 189594.526    0   21 271669.000 189594.526  30.2%     -   13s
H    0     0                    189612.00000 189594.526  0.01%     -   13s

Explored 0 nodes (50422 simplex iterations) in 13.13 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.896120000000e+05, best bound 1.895950000000e+05, gap 0.0090%