Gurobi 5.0.1 (linux64) logging started Fri Jan 18 04:33:59 2013

Optimize a model with 1500 rows, 35550 columns and 151400 nonzeros
Presolve removed 50 rows and 50 columns
Presolve time: 0.20s
Presolved: 1450 rows, 35500 columns, 141350 nonzeros
Variable types: 35100 continuous, 400 integer (400 binary)

Root relaxation: objective 1.626233e+05, 1974 iterations, 0.07 seconds

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

     0     0 162623.326    0   15          - 162623.326     -      -    0s
     0     0 162633.460    0   15          - 162633.460     -      -    0s
     0     0 162635.935    0   15          - 162635.935     -      -    0s
     0     0 162637.088    0   15          - 162637.088     -      -    0s
     0     0 162637.088    0   16          - 162637.088     -      -    0s
     0     0 162637.088    0   15          - 162637.088     -      -    0s
     0     0 162637.088    0   16          - 162637.088     -      -    1s
     0     0 162637.088    0   16          - 162637.088     -      -    1s
     0     0 162637.144    0   17          - 162637.144     -      -    1s
     0     0 162637.144    0   17          - 162637.144     -      -    1s
     0     2 162647.242    0   17          - 162647.242     -      -    3s
    69    71 162956.745   66    3          - 162705.197     -    7.1    5s
*  132    84             129    163186.75700 162705.197  0.30%   4.7    5s
*  232   170              96    163183.79569 162746.122  0.27%   4.7    6s
H  437    28                    162923.74341 162887.092  0.02%   7.3    7s

Cutting planes:
  Flow cover: 17

Explored 453 nodes (5690 simplex iterations) in 7.94 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.629237434113e+05, best bound 1.629083862272e+05, gap 0.0094%