Gurobi 5.0.1 (linux64) logging started Fri Jan 18 04:34:34 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 1.824192e+05, 2502 iterations, 0.10 seconds

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

     0     0 182419.206    0    3          - 182419.206     -      -    0s
H    0     0                    187081.65243 182419.206  2.49%     -    0s
     0     0 182427.035    0    3 187081.652 182427.035  2.49%     -    0s
     0     0 182432.131    0    5 187081.652 182432.131  2.49%     -    0s
     0     0 182432.394    0    5 187081.652 182432.394  2.49%     -    0s
     0     0 182432.394    0    5 187081.652 182432.394  2.49%     -    0s
     0     0 182433.018    0    5 187081.652 182433.018  2.48%     -    1s
     0     0 182434.577    0    5 187081.652 182434.577  2.48%     -    1s
     0     0 182434.577    0    5 187081.652 182434.577  2.48%     -    1s
     0     0 182435.099    0    9 187081.652 182435.099  2.48%     -    1s
     0     0 182436.115    0    6 187081.652 182436.115  2.48%     -    1s
     0     0 182436.115    0    6 187081.652 182436.115  2.48%     -    1s
     0     2 182436.115    0    6 187081.652 182436.115  2.48%     -    1s
*   18     5              18    182879.22514 182872.356  0.00%  26.0    2s

Cutting planes:
  Flow cover: 3

Explored 19 nodes (3729 simplex iterations) in 2.61 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.828792251419e+05, best bound 1.828723559779e+05, gap 0.0038%