Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:55:32 2013

Optimize a model with 11968 rows, 11628 columns and 46308 nonzeros
Presolve removed 34 rows and 0 columns
Presolve time: 0.05s
Presolved: 11934 rows, 11628 columns, 46274 nonzeros
Variable types: 11594 continuous, 34 integer (34 binary)

Root relaxation: objective 3.789150e+04, 2639 iterations, 0.50 seconds

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

     0     0 37891.5026    0   32          - 37891.5026     -      -    0s
H    0     0                    43342.000000 37891.5026  12.6%     -    0s
     0     0 41226.4938    0    4 43342.0000 41226.4938  4.88%     -    1s
H    0     0                    42298.408961 41226.4938  2.53%     -    1s
H    0     0                    41774.000000 41226.4938  1.31%     -    1s
H    0     0                    41286.000000 41226.4938  0.14%     -    1s
     0     0 41236.7496    0    4 41286.0000 41236.7496  0.12%     -    1s
     0     0 41243.7349    0    3 41286.0000 41243.7349  0.10%     -    1s
     0     2 41244.7528    0    3 41286.0000 41244.7528  0.10%     -    1s

Cutting planes:
  Implied bound: 29

Explored 7 nodes (3938 simplex iterations) in 1.48 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.128600000000e+04, best bound 4.128600000000e+04, gap 0.0%