Gurobi 5.0.1 (linux64) logging started Fri Jan 18 07:08:24 2013

Optimize a model with 2032 rows, 4046 columns and 14090 nonzeros
Presolve removed 23 rows and 172 columns
Presolve time: 0.16s
Presolved: 2009 rows, 3874 columns, 11610 nonzeros
Variable types: 2012 continuous, 1862 integer (1862 binary)

Root relaxation: objective 5.431947e+03, 12 iterations, 0.00 seconds

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

     0     0 5431.94660    0    2          - 5431.94660     -      -    0s
     0     0 5432.08100    0    2          - 5432.08100     -      -    0s
     0     0 5432.17195    0    2          - 5432.17195     -      -    0s
     0     0 5432.20194    0    2          - 5432.20194     -      -    0s
     0     0 5432.23177    0    2          - 5432.23177     -      -    0s
     0     0 5432.26145    0    2          - 5432.26145     -      -    0s
H    0     0                    5482.4640639 5432.26145  0.92%     -    0s
     0     2 5432.26145    0    2 5482.46406 5432.26145  0.92%     -    1s
*   20     0              10    5441.6179642 5441.61796   0.0%   243    1s

Cutting planes:
  Gomory: 1
  Cover: 2

Explored 21 nodes (4897 simplex iterations) in 1.41 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.441617964219e+03, best bound 5.441617964219e+03, gap 0.0%