Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:58:54 2013

Optimize a model with 440 rows, 16040 columns and 32040 nonzeros
Presolve time: 0.02s
Presolved: 440 rows, 16040 columns, 32040 nonzeros
Variable types: 16000 continuous, 40 integer (40 binary)

Root relaxation: objective 4.449959e+04, 827 iterations, 0.01 seconds

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

     0     0 44499.5941    0    5          - 44499.5941     -      -    0s
H    0     0                    45314.000000 44499.5941  1.80%     -    0s
H    0     0                    45305.000000 44499.5941  1.78%     -    0s
     0     0 44898.5149    0    2 45305.0000 44898.5149  0.90%     -    0s
     0     0 44919.7921    0    2 45305.0000 44919.7921  0.85%     -    0s
     0     0 44922.4694    0    2 45305.0000 44922.4694  0.84%     -    0s
     0     0 44922.4694    0    2 45305.0000 44922.4694  0.84%     -    0s
     0     0 44922.4694    0    2 45305.0000 44922.4694  0.84%     -    0s
H    0     0                    45199.000000 44922.4694  0.61%     -    0s
     0     2 44948.0000    0    2 45199.0000 44948.0000  0.56%     -    0s
*    3     1               2    45120.000000 45120.0000   0.0%  79.7    0s

Cutting planes:
  Implied bound: 42
  Flow cover: 1

Explored 4 nodes (1203 simplex iterations) in 0.27 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.512000000000e+04, best bound 4.512000000000e+04, gap 0.0%