Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:00:26 2013

Optimize a model with 18102 rows, 17682 columns and 70602 nonzeros
Presolve removed 240 rows and 0 columns
Presolve time: 0.10s
Presolved: 17862 rows, 17682 columns, 70122 nonzeros
Variable types: 17640 continuous, 42 integer (42 binary)

Root relaxation: objective 4.497928e+04, 2229 iterations, 0.16 seconds

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

     0     0 44979.2797    0    4          - 44979.2797     -      -    0s
H    0     0                    45117.000000 44979.2797  0.31%     -    0s
H    0     0                    45109.000000 44979.2797  0.29%     -    0s
H    0     0                    45104.000000 44979.2797  0.28%     -    0s
     0     0 44983.2573    0    5 45104.0000 44983.2573  0.27%     -    0s
H    0     0                    45048.000000 44983.2573  0.14%     -    0s
     0     0 44988.1222    0    4 45048.0000 44988.1222  0.13%     -    0s
     0     0 44988.1222    0    4 45048.0000 44988.1222  0.13%     -    0s
     0     0 45028.3051    0    2 45048.0000 45028.3051  0.04%     -    0s
     0     0 45028.3051    0    3 45048.0000 45028.3051  0.04%     -    0s
     0     0 45028.5401    0    2 45048.0000 45028.5401  0.04%     -    1s
     0     0 45034.1776    0    3 45048.0000 45034.1776  0.03%     -    1s
     0     0 45035.2367    0    3 45048.0000 45035.2367  0.03%     -    1s
     0     0     cutoff    0      45048.0000 45048.0000   0.0%     -    1s

Cutting planes:
  Gomory: 3

Explored 0 nodes (3246 simplex iterations) in 1.14 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.504800000000e+04, best bound 4.504800000000e+04, gap 0.0%