Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:48:24 2013

Optimize a model with 704 rows, 41024 columns and 81984 nonzeros
Presolve time: 0.06s
Presolved: 704 rows, 41024 columns, 81984 nonzeros
Variable types: 40960 continuous, 64 integer (64 binary)

Root relaxation: objective 7.700307e+04, 1709 iterations, 0.05 seconds

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

     0     0 77003.0734    0    9          - 77003.0734     -      -    0s
H    0     0                    79945.000000 77003.0734  3.68%     -    0s
H    0     0                    77568.000000 77003.0734  0.73%     -    0s
     0     0 77396.6997    0    5 77568.0000 77396.6997  0.22%     -    0s
     0     0 77419.8475    0    6 77568.0000 77419.8475  0.19%     -    0s
     0     0 77419.8475    0    9 77568.0000 77419.8475  0.19%     -    0s
     0     0 77419.8475    0    5 77568.0000 77419.8475  0.19%     -    0s
     0     0 77420.1189    0    6 77568.0000 77420.1189  0.19%     -    0s
     0     0 77428.4987    0    5 77568.0000 77428.4987  0.18%     -    0s
     0     0 77428.5793    0    5 77568.0000 77428.5793  0.18%     -    0s
     0     0 77428.5793    0    5 77568.0000 77428.5793  0.18%     -    0s
     0     0 77433.5975    0    5 77568.0000 77433.5975  0.17%     -    0s
     0     0 77434.2147    0    4 77568.0000 77434.2147  0.17%     -    0s
     0     2 77451.2461    0    4 77568.0000 77451.2461  0.15%     -    1s

Cutting planes:
  Implied bound: 109
  Flow cover: 3

Explored 11 nodes (4094 simplex iterations) in 1.20 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.756800000000e+04, best bound 7.756800000000e+04, gap 0.0%