Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:58:50 2013

Optimize a model with 1200 rows, 28550 columns and 66550 nonzeros
Presolve removed 50 rows and 1250 columns
Presolve time: 0.17s
Presolved: 1150 rows, 27300 columns, 64550 nonzeros
Variable types: 27050 continuous, 250 integer (250 binary)

Root relaxation: objective 1.626233e+05, 1980 iterations, 0.08 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 162698.800    0   15          - 162698.800     -      -    0s
     0     0 162719.437    0   12          - 162719.437     -      -    0s
     0     0 162719.437    0   12          - 162719.437     -      -    0s
     0     0 162719.437    0   12          - 162719.437     -      -    0s
     0     0 162719.437    0   12          - 162719.437     -      -    0s
     0     0 162719.437    0   12          - 162719.437     -      -    1s
H    0     0                    163803.75589 162719.437  0.66%     -    1s
     0     2 162720.684    0   12 163803.756 162720.684  0.66%     -    1s
H   27    21                    163201.71383 162812.427  0.24%  22.4    1s
*   88    20              27    162919.51254 162855.469  0.04%  14.6    2s
*  124    30              19    162917.68851 162856.627  0.04%  12.1    3s

Cutting planes:
  Flow cover: 11

Explored 175 nodes (4743 simplex iterations) in 3.37 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.629176885125e+05, best bound 1.629029154932e+05, gap 0.0091%