Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:55:20 2013

Optimize a model with 374 rows, 11594 columns and 23154 nonzeros
Presolve time: 0.01s
Presolved: 374 rows, 11594 columns, 23154 nonzeros
Variable types: 11560 continuous, 34 integer (34 binary)

Root relaxation: objective 4.096768e+04, 681 iterations, 0.01 seconds

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

     0     0 40967.6791    0    6          - 40967.6791     -      -    0s
H    0     0                    41916.000000 40967.6791  2.26%     -    0s
H    0     0                    41346.000000 40967.6791  0.92%     -    0s
     0     0 41232.1035    0    4 41346.0000 41232.1035  0.28%     -    0s
     0     0 41236.4818    0    5 41346.0000 41236.4818  0.26%     -    0s
     0     0 41237.0235    0    4 41346.0000 41237.0235  0.26%     -    0s
     0     0 41237.0569    0    4 41346.0000 41237.0569  0.26%     -    0s
     0     0 41237.2973    0    4 41346.0000 41237.2973  0.26%     -    0s
H    0     0                    41286.000000 41237.2973  0.12%     -    0s
     0     0 41237.2973    0    4 41286.0000 41237.2973  0.12%     -    0s
     0     0 41237.2973    0    3 41286.0000 41237.2973  0.12%     -    0s
     0     0 41237.2973    0    4 41286.0000 41237.2973  0.12%     -    0s
     0     0 41242.8317    0    3 41286.0000 41242.8317  0.10%     -    0s
     0     0 41243.3965    0    3 41286.0000 41243.3965  0.10%     -    0s
     0     0 41243.8139    0    5 41286.0000 41243.8139  0.10%     -    0s
     0     0 41243.8773    0    3 41286.0000 41243.8773  0.10%     -    0s
     0     2 41246.9833    0    3 41286.0000 41246.9833  0.09%     -    0s

Cutting planes:
  Implied bound: 36
  Flow cover: 3

Explored 3 nodes (1643 simplex iterations) in 0.38 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.128600000000e+04, best bound 4.128261538462e+04, gap 0.0082%