Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:15:42 2013

Optimize a model with 340 rows, 1220 columns and 2810 nonzeros
Presolve removed 40 rows and 30 columns
Presolve time: 0.01s
Presolved: 300 rows, 1190 columns, 2650 nonzeros
Variable types: 1100 continuous, 90 integer (90 binary)

Root relaxation: objective 1.997658e+04, 157 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 20051.3141    0    3          - 20051.3141     -      -    0s
     0     0 20117.6249    0    3          - 20117.6249     -      -    0s
     0     0 20123.0310    0    3          - 20123.0310     -      -    0s
H    0     0                    20157.611196 20123.0310  0.17%     -    0s
     0     0 20123.0310    0    2 20157.6112 20123.0310  0.17%     -    0s
     0     0 20123.0310    0    3 20157.6112 20123.0310  0.17%     -    0s
     0     0 20127.4871    0    3 20157.6112 20127.4871  0.15%     -    0s
     0     0 20128.6906    0    3 20157.6112 20128.6906  0.14%     -    0s
     0     0 20130.8923    0    3 20157.6112 20130.8923  0.13%     -    0s
     0     0 20132.1138    0    2 20157.6112 20132.1138  0.13%     -    0s
     0     0 20139.4770    0    1 20157.6112 20139.4770  0.09%     -    0s
     0     1 20154.7481    0    1 20157.6112 20154.7481  0.01%     -    0s

Cutting planes:
  Gomory: 3

Explored 2 nodes (348 simplex iterations) in 0.10 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.015761119649e+04, best bound 2.015749843312e+04, gap 0.0006%