Gurobi 5.0.1 (linux64) logging started Mon Feb  4 20:10:21 2013

Optimize a model with 457450 rows, 19600 columns and 1381800 nonzeros
Presolve removed 14848 rows and 9832 columns (presolve time = 5s) ...
Presolve removed 14981 rows and 9832 columns
Presolve time: 6.68s
Presolved: 442469 rows, 9768 columns, 1337814 nonzeros
Variable types: 76 continuous, 9692 integer (9692 binary)
Found heuristic solution: objective 414202.00000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   10395    2.2881963e+05   0.000000e+00   9.189548e+08      5s
   19845    2.3090323e+05   0.000000e+00   1.330617e+09     10s
   30240    2.3263446e+05   0.000000e+00   8.489216e+08     15s
   42525    2.3620304e+05   0.000000e+00   4.182773e+08     20s
   55755    2.4056353e+05   0.000000e+00   3.451800e+08     25s
   68985    2.4347191e+05   0.000000e+00   2.453651e+09     30s
   82215    2.4882886e+05   0.000000e+00   2.577528e+08     35s
   97335    2.5570783e+05   0.000000e+00   8.479770e+08     40s
  114345    2.6469020e+05   0.000000e+00   6.972625e+07     45s
  132304    2.7623890e+05   0.000000e+00   2.794878e+07     50s
  148373    2.8591986e+05   0.000000e+00   6.439165e+05     55s
  152881    2.8685350e+05   0.000000e+00   0.000000e+00     59s
  152881    2.8685350e+05   0.000000e+00   0.000000e+00     59s

Root relaxation: objective 2.868535e+05, 152881 iterations, 58.63 seconds

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

     0     0 286853.500    0   16 414202.000 286853.500  30.7%     -   68s
H    0     0                    286860.00000 286853.500  0.00%     -   68s

Explored 0 nodes (153094 simplex iterations) in 68.60 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.868600000000e+05, best bound 2.868540000000e+05, gap 0.0021%