Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:40:49 2013

Optimize a model with 260 rows, 1590 columns and 6220 nonzeros
Presolve removed 10 rows and 10 columns
Presolve time: 0.01s
Presolved: 250 rows, 1580 columns, 5710 nonzeros
Variable types: 1520 continuous, 60 integer (60 binary)

Root relaxation: objective 2.337984e+04, 147 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 23382.1291    0    4          - 23382.1291     -      -    0s
     0     0 23512.7755    0    6          - 23512.7755     -      -    0s
     0     0 23512.7755    0    6          - 23512.7755     -      -    0s
H    0     0                    24478.631785 23512.7755  3.95%     -    0s
     0     2 23512.7755    0    6 24478.6318 23512.7755  3.95%     -    0s
*    7     4               7    23527.300521 23512.7755  0.06%  11.7    0s

Cutting planes:
  Flow cover: 1

Explored 12 nodes (438 simplex iterations) in 0.08 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.352730052140e+04, best bound 2.352730052140e+04, gap 0.0%