Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:40:43 2013

Optimize a model with 260 rows, 2360 columns and 11130 nonzeros
Presolve removed 10 rows and 290 columns
Presolve time: 0.01s
Presolved: 250 rows, 2070 columns, 10130 nonzeros
Variable types: 2010 continuous, 60 integer (60 binary)

Root relaxation: objective 2.337984e+04, 139 iterations, 0.00 seconds

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

     0     0 23379.8401    0    3          - 23379.8401     -      -    0s
     0     0 23382.2789    0    6          - 23382.2789     -      -    0s
     0     0 23382.3077    0    6          - 23382.3077     -      -    0s
     0     0 23512.7755    0    5          - 23512.7755     -      -    0s
     0     0 23512.7755    0    5          - 23512.7755     -      -    0s
H    0     0                    24450.121868 23512.7755  3.83%     -    0s
     0     2 23512.7755    0    5 24450.1219 23512.7755  3.83%     -    0s
*    8     6               8    23527.300521 23512.7755  0.06%   8.6    0s

Cutting planes:
  Gomory: 1
  Flow cover: 1

Explored 14 nodes (427 simplex iterations) in 0.13 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.352730052140e+04, best bound 2.352551799643e+04, gap 0.0076%