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 1.997658e+04, 129 iterations, 0.00 seconds

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

     0     0 19976.5790    0    2          - 19976.5790     -      -    0s
     0     0 20001.4671    0    4          - 20001.4671     -      -    0s
     0     0 20003.9869    0    4          - 20003.9869     -      -    0s
     0     0 20006.1145    0    4          - 20006.1145     -      -    0s
     0     0 20006.1145    0    4          - 20006.1145     -      -    0s
H    0     0                    20438.593638 20006.1145  2.12%     -    0s
     0     2 20007.5662    0    4 20438.5936 20007.5662  2.11%     -    0s
*    6     6               4    20160.594832 20133.6219  0.13%   7.5    0s
*   14     2               3    20157.611196 20145.2372  0.06%   5.2    0s

Cutting planes:
  Gomory: 2
  Flow cover: 5

Explored 17 nodes (251 simplex iterations) in 0.05 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.015761119649e+04, best bound 2.015761119649e+04, gap 0.0%