Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:15:44 2013

Optimize a model with 240 rows, 1320 columns and 2810 nonzeros
Presolve removed 20 rows and 30 columns
Presolve time: 0.00s
Presolved: 220 rows, 1290 columns, 2580 nonzeros
Variable types: 1200 continuous, 90 integer (90 binary)

Root relaxation: objective 2.337984e+04, 141 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    1          - 23379.8401     -      -    0s
     0     0 23404.2412    0    2          - 23404.2412     -      -    0s
     0     0 23405.7582    0    2          - 23405.7582     -      -    0s
     0     0 23405.7582    0    2          - 23405.7582     -      -    0s
H    0     0                    23612.210621 23405.7582  0.87%     -    0s
     0     2 23449.9354    0    2 23612.2106 23449.9354  0.69%     -    0s
*    6     3               6    23526.709807 23520.1717  0.03%   3.8    0s

Cutting planes:
  Gomory: 1
  Flow cover: 2

Explored 9 nodes (206 simplex iterations) in 0.04 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.352670980679e+04, best bound 2.352447199298e+04, gap 0.0095%