Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:12:55 2013

Optimize a model with 26622 rows, 26112 columns and 104142 nonzeros
Presolve removed 51 rows and 0 columns
Presolve time: 0.12s
Presolved: 26571 rows, 26112 columns, 104091 nonzeros
Variable types: 26061 continuous, 51 integer (51 binary)

Root relaxation: objective 3.957289e+04, 2787 iterations, 0.83 seconds

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

     0     0 39572.8857    0   42          - 39572.8857     -      -    1s
H    0     0                    51221.000000 39572.8857  22.7%     -    1s
     0     0 44722.3843    0    5 51221.0000 44722.3843  12.7%     -    2s
H    0     0                    48192.176098 44722.3843  7.20%     -    2s
H    0     0                    45929.000000 44722.3843  2.63%     -    2s
H    0     0                    44833.000000 44722.3843  0.25%     -    2s
     0     0 44738.6888    0    4 44833.0000 44738.6888  0.21%     -    2s
     0     0 44741.5029    0    3 44833.0000 44741.5029  0.20%     -    3s
     0     0 44794.0702    0    2 44833.0000 44794.0702  0.09%     -    3s
     0     2 44795.3333    0    2 44833.0000 44795.3333  0.08%     -    3s

Cutting planes:
  Gomory: 1
  Implied bound: 43

Explored 6 nodes (4840 simplex iterations) in 4.10 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.483300000000e+04, best bound 4.483300000000e+04, gap 0.0%