Gurobi 5.0.1 (linux64) logging started Mon Feb  4 19:49:18 2013

Optimize a model with 221925 rows, 12100 columns and 671550 nonzeros
Presolve removed 10231 rows and 6095 columns
Presolve time: 2.64s
Presolved: 211694 rows, 6005 columns, 640322 nonzeros
Variable types: 49 continuous, 5956 integer (5956 binary)
Found heuristic solution: objective 242524.00000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   21420    1.5722285e+05   0.000000e+00   2.162862e+07      5s
   45260    1.7371949e+05   0.000000e+00   0.000000e+00      9s
   45260    1.7371949e+05   0.000000e+00   0.000000e+00      9s

Root relaxation: objective 1.737195e+05, 45260 iterations, 9.45 seconds

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

     0     0 173719.488    0   16 242524.000 173719.488  28.4%     -   13s
H    0     0                    173746.00000 173719.488  0.02%     -   13s
H    0     0                    173739.00000 173719.488  0.01%     -   13s
H    0     0                    173733.00000 173719.488  0.01%     -   13s

Explored 0 nodes (45352 simplex iterations) in 13.45 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.737330000000e+05, best bound 1.737200000000e+05, gap 0.0075%