Gurobi 5.0.1 (linux64) logging started Fri Jan 18 02:47:03 2013

Optimize a model with 1160 rows, 3030 columns and 9050 nonzeros
Presolve removed 10 rows and 10 columns
Presolve time: 0.10s
Presolved: 1150 rows, 3020 columns, 8040 nonzeros
Variable types: 2020 continuous, 1000 integer (1000 binary)

Root relaxation: objective 2.199252e+04, 103 iterations, 0.00 seconds

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

     0     0 21992.5209    0    4          - 21992.5209     -      -    0s
     0     0 22021.0977    0    2          - 22021.0977     -      -    0s
     0     0 22030.8459    0    2          - 22030.8459     -      -    0s
     0     0 22033.0771    0    6          - 22033.0771     -      -    0s
     0     0 22037.0715    0    4          - 22037.0715     -      -    0s
     0     0 22037.8590    0    2          - 22037.8590     -      -    0s
     0     0 22037.8590    0    2          - 22037.8590     -      -    0s
     0     2 22037.8590    0    2          - 22037.8590     -      -    0s
*    3     1               2    22791.927631 22080.8060  3.12%  53.3    0s
*   15     5               8    22134.953373 22134.9323  0.00%  15.9    0s

Cutting planes:
  Gomory: 1
  Implied bound: 17
  Flow cover: 1

Explored 16 nodes (470 simplex iterations) in 0.43 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.213495337267e+04, best bound 2.213493233821e+04, gap 0.0001%