Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:56:54 2013

Optimize a model with 407 rows, 13727 columns and 27417 nonzeros
Presolve time: 0.02s
Presolved: 407 rows, 13727 columns, 27417 nonzeros
Variable types: 13690 continuous, 37 integer (37 binary)

Root relaxation: objective 4.434100e+04, 777 iterations, 0.01 seconds

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

     0     0 44340.9974    0    7          - 44340.9974     -      -    0s
H    0     0                    45088.000000 44340.9974  1.66%     -    0s
     0     0 44702.7989    0    4 45088.0000 44702.7989  0.85%     -    0s
     0     0 44706.5219    0    3 45088.0000 44706.5219  0.85%     -    0s
H    0     0                    44921.000000 44706.5219  0.48%     -    0s
H    0     0                    44866.000000 44706.5219  0.36%     -    0s
     0     0 44719.3760    0    1 44866.0000 44719.3760  0.33%     -    0s
     0     0 44719.3760    0    1 44866.0000 44719.3760  0.33%     -    0s
     0     0 44719.3760    0    1 44866.0000 44719.3760  0.33%     -    0s
     0     0 44719.3760    0    1 44866.0000 44719.3760  0.33%     -    0s
     0     2 44723.4062    0    1 44866.0000 44723.4062  0.32%     -    0s
*    3     3               2    44795.000000 44790.1438  0.01%  79.0    0s

Cutting planes:
  Implied bound: 52
  Flow cover: 3

Explored 5 nodes (1349 simplex iterations) in 0.30 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.479500000000e+04, best bound 4.479469759236e+04, gap 0.0007%