Gurobi 5.0.1 (linux64) logging started Mon Feb  4 19:48:23 2013

Optimize a model with 221925 rows, 12100 columns and 671550 nonzeros
Presolve removed 9038 rows and 6072 columns
Presolve time: 2.74s
Presolved: 212887 rows, 6028 columns, 645184 nonzeros
Variable types: 61 continuous, 5967 integer (5967 binary)
Found heuristic solution: objective 245747.00000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   15912    1.4330525e+05   0.000000e+00   1.612252e+08      5s
   31824    1.4894728e+05   0.000000e+00   2.392445e+08     10s
   49572    1.5320014e+05   0.000000e+00   9.990919e+07     15s
   71065    1.6050756e+05   0.000000e+00   7.878510e+07     20s
   95575    1.7155050e+05   0.000000e+00   3.169263e+07     25s
  106264    1.7732567e+05   0.000000e+00   0.000000e+00     28s
  106264    1.7732567e+05   0.000000e+00   0.000000e+00     28s

Root relaxation: objective 1.773257e+05, 106264 iterations, 27.90 seconds

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

     0     0 177325.667    0   12 245747.000 177325.667  27.8%     -   31s
H    0     0                    177345.00000 177325.667  0.01%     -   32s
H    0     0                    177336.00000 177325.667  0.01%     -   32s

Explored 0 nodes (106559 simplex iterations) in 32.25 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.773360000000e+05, best bound 1.773260000000e+05, gap 0.0056%