Gurobi 5.0.1 (linux64) logging started Thu Jan 24 18:13:12 2013

Optimize a model with 5 rows, 100 columns and 500 nonzeros
Presolve time: 0.00s
Presolved: 5 rows, 100 columns, 500 nonzeros
Variable types: 0 continuous, 100 integer (100 binary)
Found heuristic solution: objective 39271.000000

Root relaxation: objective 4.293952e+04, 20 iterations, 0.00 seconds

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

     0     0 42939.5223    0    5 39271.0000 42939.5223  9.34%     -    0s
H    0     0                    42171.000000 42939.5223  1.82%     -    0s
     0     0 42919.5836    0   10 42171.0000 42919.5836  1.78%     -    0s
H    0     0                    42292.000000 42919.5836  1.48%     -    0s
     0     0 42917.4049    0   11 42292.0000 42917.4049  1.48%     -    0s
     0     0 42916.0539    0   10 42292.0000 42916.0539  1.48%     -    0s
H    0     0                    42705.000000 42916.0539  0.49%     -    0s
     0     2 42911.2515    0   10 42705.0000 42911.2515  0.48%     -    0s
H  721   417                    42757.000000 42875.6129  0.28%   2.9    0s

Cutting planes:
  Gomory: 4
  Cover: 2
  MIR: 4

Explored 5165 nodes (12819 simplex iterations) in 0.30 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.275700000000e+04, best bound 4.276000000000e+04, gap 0.0070%