Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:52:54 2013

Optimize a model with 3300 rows, 30150 columns and 67750 nonzeros
Presolve removed 50 rows and 50 columns
Presolve time: 0.23s
Presolved: 3250 rows, 30100 columns, 65200 nonzeros
Variable types: 27600 continuous, 2500 integer (2500 binary)

Root relaxation: objective 1.749223e+05, 3438 iterations, 0.14 seconds

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

     0     0 174922.321    0    4          - 174922.321     -      -    0s
     0     0 174958.976    0    2          - 174958.976     -      -    0s
     0     0 174959.718    0    2          - 174959.718     -      -    0s
     0     0 174959.718    0    2          - 174959.718     -      -    0s
H    0     0                    182707.97026 174959.718  4.24%     -    1s
     0     2 174959.718    0    2 182707.970 174959.718  4.24%     -    1s
H   27    16                    177310.36983 175446.124  1.05%  78.5    2s
*   34    15              20    177084.03499 175446.124  0.92%  68.2    2s
*   79    19              58    176666.12838 175446.124  0.69%  34.9    3s
*  146    22              36    176541.10374 175632.509  0.51%  24.8    4s
H  192     8                    176416.48503 176209.310  0.12%  24.6    4s
   199     9 176415.245   32    2 176416.485 176209.310  0.12%  23.8    5s
*  213     2              11    176210.35534 176210.124  0.00%  22.5    5s

Cutting planes:
  Gomory: 2
  Implied bound: 37
  Flow cover: 1

Explored 214 nodes (8917 simplex iterations) in 5.20 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.762103553441e+05, best bound 1.762101240866e+05, gap 0.0001%