Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:16:19 2013

Optimize a model with 140 rows, 1050 columns and 2100 nonzeros
Presolve removed 10 rows and 10 columns
Presolve time: 0.00s
Presolved: 160 rows, 1060 columns, 2130 nonzeros
Variable types: 1040 continuous, 20 integer (20 binary)

Root relaxation: objective 2.207062e+04, 159 iterations, 0.00 seconds

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

     0     0 22070.6191    0    2          - 22070.6191     -      -    0s
H    0     0                    22321.251466 22070.6191  1.12%     -    0s
     0     0 22237.3867    0    2 22321.2515 22237.3867  0.38%     -    0s
     0     0 22261.3497    0    2 22321.2515 22261.3497  0.27%     -    0s
     0     0 22264.3311    0    2 22321.2515 22264.3311  0.26%     -    0s
     0     0 22265.0876    0    2 22321.2515 22265.0876  0.25%     -    0s
     0     0 22268.7237    0    2 22321.2515 22268.7237  0.24%     -    0s
     0     0 22277.7200    0    2 22321.2515 22277.7200  0.20%     -    0s
     0     0 22277.7200    0    2 22321.2515 22277.7200  0.20%     -    0s
     0     0 22277.7200    0    2 22321.2515 22277.7200  0.20%     -    0s
     0     0 22277.7200    0    2 22321.2515 22277.7200  0.20%     -    0s

Cutting planes:
  Flow cover: 4

Explored 0 nodes (298 simplex iterations) in 0.03 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.232125146608e+04, best bound 2.232125146608e+04, gap 0.0%