Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:45:24 2013

Optimize a model with 5700 rows, 30100 columns and 70050 nonzeros
Presolve removed 150 rows and 100 columns
Presolve time: 0.25s
Presolved: 5550 rows, 30000 columns, 64900 nonzeros
Variable types: 27550 continuous, 2450 integer (2450 binary)

Root relaxation: objective 1.749223e+05, 5776 iterations, 0.26 seconds

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

     0     0 174922.321    0    2          - 174922.321     -      -    0s
     0     0 174956.752    0    2          - 174956.752     -      -    0s
     0     0 174964.707    0    1          - 174964.707     -      -    0s
     0     0 174964.707    0    1          - 174964.707     -      -    0s
H    0     0                    182707.97026 174964.707  4.24%     -    1s
     0     2 174967.262    0    1 182707.970 174967.262  4.24%     -    1s
H   81    79                    178752.46200 175361.645  1.90%  17.8    4s
    85    84 175443.057   85    2 178752.462 175361.645  1.90%  17.9    5s
   226   223 175932.812  226    2 178752.462 175361.645  1.90%  12.1   10s
H  303    92                    176728.23276 175361.645  0.77%  11.6   12s
H  310    63                    176271.26267 175361.645  0.52%  11.5   12s
   523   131 176087.440   34    2 176271.263 175565.411  0.40%  15.2   15s
   691   195 175762.486   58    1 176271.263 175644.665  0.36%  23.5   20s
H  694   185                    176253.02075 175644.665  0.35%  23.5   20s
*  696   170              60    176210.35534 175644.665  0.32%  23.5   20s
  1152    85 175892.440   18    2 176210.355 175892.440  0.18%  22.7   25s

Cutting planes:
  Gomory: 1
  Flow cover: 3

Explored 1636 nodes (40716 simplex iterations) in 29.50 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.762103553441e+05, best bound 1.761930297379e+05, gap 0.0098%