Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:59:43 2013

Optimize a model with 451 rows, 16851 columns and 33661 nonzeros
Presolve time: 0.02s
Presolved: 451 rows, 16851 columns, 33661 nonzeros
Variable types: 16810 continuous, 41 integer (41 binary)

Root relaxation: objective 4.223911e+04, 662 iterations, 0.01 seconds

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

     0     0 42239.1118    0    6          - 42239.1118     -      -    0s
H    0     0                    43027.000000 42239.1118  1.83%     -    0s
H    0     0                    42393.000000 42239.1118  0.36%     -    0s
     0     0 42359.7333    0    2 42393.0000 42359.7333  0.08%     -    0s
     0     0 42359.9583    0    2 42393.0000 42359.9583  0.08%     -    0s
     0     0 42359.9583    0    4 42393.0000 42359.9583  0.08%     -    0s
     0     0 42359.9583    0    2 42393.0000 42359.9583  0.08%     -    0s
     0     0 42360.0476    0    2 42393.0000 42360.0476  0.08%     -    0s
     0     0     cutoff    0      42393.0000 42393.0000   0.0%     -    0s

Cutting planes:
  Implied bound: 29
  Flow cover: 2

Explored 0 nodes (1321 simplex iterations) in 0.24 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.239300000000e+04, best bound 4.239300000000e+04, gap 0.0%