Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:00:40 2013

Optimize a model with 1200 rows, 26400 columns and 57950 nonzeros
Presolve removed 50 rows and 50 columns
Presolve time: 0.10s
Presolved: 1150 rows, 26350 columns, 56900 nonzeros
Variable types: 26100 continuous, 250 integer (250 binary)

Root relaxation: objective 1.626233e+05, 1721 iterations, 0.06 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 162689.109    0   15          - 162689.109     -      -    0s
     0     0 162714.375    0   12          - 162714.375     -      -    0s
     0     0 162717.824    0   12          - 162717.824     -      -    0s
     0     0 162720.991    0   12          - 162720.991     -      -    0s
     0     0 162720.991    0   12          - 162720.991     -      -    0s
     0     0 162720.991    0   12          - 162720.991     -      -    0s
     0     0 162720.991    0   12          - 162720.991     -      -    0s
     0     0 162720.991    0   12          - 162720.991     -      -    1s
H    0     0                    163803.75589 162720.991  0.66%     -    1s
     0     2 162725.061    0    9 163803.756 162725.061  0.66%     -    1s
H   27    16                    163201.71383 162812.427  0.24%  22.7    1s
*   50    17              47    163075.62081 162812.427  0.16%  14.0    2s
*   81     6              18    162917.68851 162859.694  0.04%  14.4    2s

Cutting planes:
  Flow cover: 14

Explored 87 nodes (3849 simplex iterations) in 2.47 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.629176885125e+05, best bound 1.629132426495e+05, gap 0.0027%