Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:52:45 2013

Optimize a model with 715 rows, 42315 columns and 84565 nonzeros
Presolve time: 0.06s
Presolved: 715 rows, 42315 columns, 84565 nonzeros
Variable types: 42250 continuous, 65 integer (65 binary)

Root relaxation: objective 7.427993e+04, 1763 iterations, 0.05 seconds

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

     0     0 74279.9264    0    7          - 74279.9264     -      -    0s
H    0     0                    76186.000000 74279.9264  2.50%     -    0s
     0     0 74525.6322    0    5 76186.0000 74525.6322  2.18%     -    0s
     0     0 74548.5830    0    4 76186.0000 74548.5830  2.15%     -    0s
     0     0 74561.4488    0    7 76186.0000 74561.4488  2.13%     -    0s
     0     0 74566.8479    0    4 76186.0000 74566.8479  2.13%     -    0s
     0     0 74567.2735    0    8 76186.0000 74567.2735  2.12%     -    0s
     0     0 74567.7214    0    4 76186.0000 74567.7214  2.12%     -    0s
     0     0 74568.2929    0    7 76186.0000 74568.2929  2.12%     -    0s
     0     0 74569.7198    0    5 76186.0000 74569.7198  2.12%     -    0s
     0     0 74570.0638    0    4 76186.0000 74570.0638  2.12%     -    0s
     0     2 74571.5575    0    4 76186.0000 74571.5575  2.12%     -    1s
H    4     4                    74953.885714 74635.1340  0.43%  63.2    1s
H    5     5                    74708.951220 74635.9919  0.10%  70.6    1s
*    7     5               6    74673.000000 74635.9919  0.05%  57.3    1s

Cutting planes:
  Implied bound: 86
  Flow cover: 3

Explored 12 nodes (2637 simplex iterations) in 1.43 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.467300000000e+04, best bound 7.467300000000e+04, gap 0.0%