Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:55:15 2013

Optimize a model with 11934 rows, 11594 columns and 46274 nonzeros
Presolve removed 1309 rows and 0 columns
Presolve time: 0.06s
Presolved: 10625 rows, 11594 columns, 43656 nonzeros
Variable types: 11560 continuous, 34 integer (34 binary)

Root relaxation: objective 4.123675e+04, 2462 iterations, 0.14 seconds

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

     0     0 41236.7496    0    4          - 41236.7496     -      -    0s
H    0     0                    41394.000000 41236.7496  0.38%     -    0s
H    0     0                    41286.000000 41236.7496  0.12%     -    0s
     0     0 41239.0144    0    5 41286.0000 41239.0144  0.11%     -    0s
     0     0 41239.0144    0    5 41286.0000 41239.0144  0.11%     -    0s
     0     0 41245.6743    0    4 41286.0000 41245.6743  0.10%     -    0s
     0     2 41262.7346    0    4 41286.0000 41262.7346  0.06%     -    0s

Cutting planes:
  Gomory: 1
  Flow cover: 1

Explored 5 nodes (2695 simplex iterations) in 0.76 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.128600000000e+04, best bound 4.128325000000e+04, gap 0.0067%