Gurobi 5.0.1 (linux64) logging started Fri Jan 18 04:30:28 2013

Optimize a model with 1500 rows, 51100 columns and 270850 nonzeros
Presolve removed 50 rows and 5650 columns
Presolve time: 0.40s
Presolved: 1450 rows, 45450 columns, 250850 nonzeros
Variable types: 45050 continuous, 400 integer (400 binary)

Root relaxation: objective 1.824192e+05, 2987 iterations, 0.15 seconds

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

     0     0 182419.206    0    5          - 182419.206     -      -    0s
     0     0 182427.035    0    5          - 182427.035     -      -    0s
     0     0 182428.324    0    5          - 182428.324     -      -    1s
     0     0 182428.832    0    5          - 182428.832     -      -    1s
     0     0 182429.017    0    5          - 182429.017     -      -    1s
     0     0 182429.023    0    5          - 182429.023     -      -    1s
     0     0 182429.023    0    5          - 182429.023     -      -    1s
     0     2 182429.460    0    5          - 182429.460     -      -    3s
    35    37 183392.539   32    7          - 182486.692     -   37.8    5s
*  164   139             155    185704.66219 182486.692  1.73%  13.9    7s
H  166    64                    183713.59905 182486.692  0.67%  13.8    7s
*  180    20              17    182879.22514 182489.038  0.21%  14.2    7s

Cutting planes:
  Flow cover: 4

Explored 281 nodes (7514 simplex iterations) in 8.82 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.828792251419e+05, best bound 1.828612061442e+05, gap 0.0099%