Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:54:50 2013

Optimize a model with 11253 rows, 10923 columns and 43593 nonzeros
Presolve removed 1270 rows and 0 columns
Presolve time: 0.06s
Presolved: 9983 rows, 10923 columns, 41053 nonzeros
Variable types: 10890 continuous, 33 integer (33 binary)

Root relaxation: objective 4.099221e+04, 1708 iterations, 0.08 seconds

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

     0     0 40992.2105    0    2          - 40992.2105     -      -    0s
H    0     0                    41171.000000 40992.2105  0.43%     -    0s
H    0     0                    41004.000000 40992.2105  0.03%     -    0s
     0     0     cutoff    0      41004.0000 41004.0000   0.0%     -    0s

Cutting planes:
  Flow cover: 1

Explored 0 nodes (1745 simplex iterations) in 0.24 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.100400000000e+04, best bound 4.100400000000e+04, gap 0.0%