Gurobi 5.0.1 (linux64) logging started Wed Apr 24 10:24:06 2013

Optimize a model with 122210 rows, 121110 columns and 484110 nonzeros
Presolve removed 4834 rows and 0 columns
Presolve time: 0.96s
Presolved: 117376 rows, 121110 columns, 474442 nonzeros
Variable types: 121000 continuous, 110 integer (110 binary)

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   19707    1.5222918e+05   2.349710e+04   0.000000e+00      5s
   27195    1.6969372e+05   5.213656e+03   0.000000e+00     10s
   30428    1.7058202e+05   0.000000e+00   0.000000e+00     13s

Root relaxation: objective 1.705820e+05, 30428 iterations, 12.63 seconds

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

     0     0 170582.024    0    2          - 170582.024     -      -   13s
H    0     0                    171586.00000 170582.024  0.59%     -   14s
     0     0 170582.860    0    4 171586.000 170582.860  0.58%     -   15s
     0     0 170582.860    0    2 171586.000 170582.860  0.58%     -   27s
     0     0 170582.901    0    5 171586.000 170582.901  0.58%     -   28s
     0     0 170582.901    0    5 171586.000 170582.901  0.58%     -   28s
     0     0 170582.901    0    5 171586.000 170582.901  0.58%     -   29s
     0     2 170583.816    0    5 171586.000 170583.816  0.58%     -   33s
H    3     3                    171133.02041 170754.959  0.22%   227   34s
H    4     3                    170959.73228 170755.367  0.12%   185   34s
H    6     2                    170940.24490 170802.898  0.08%   145   34s
*    8     3               7    170821.00000 170803.181  0.01%   138   34s

Cutting planes:
  Gomory: 2
  Flow cover: 1

Explored 11 nodes (46987 simplex iterations) in 34.90 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.708210000000e+05, best bound 1.708210000000e+05, gap 0.0%