Gurobi 5.0.1 (linux64) logging started Wed Apr 24 03:18:28 2013

Optimize a model with 61698 rows, 60918 columns and 243438 nonzeros
Presolve removed 2671 rows and 0 columns
Presolve time: 0.40s
Presolved: 59027 rows, 60918 columns, 238096 nonzeros
Variable types: 60840 continuous, 78 integer (78 binary)

Root relaxation: objective 9.266765e+04, 12155 iterations, 2.45 seconds

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

     0     0 92667.6479    0    5          - 92667.6479     -      -    3s
H    0     0                    95630.000000 92667.6479  3.10%     -    3s
     0     0 92668.3687    0    6 95630.0000 92668.3687  3.10%     -    3s
     0     0 92668.3687    0    6 95630.0000 92668.3687  3.10%     -    4s
     0     0 92668.3687    0    6 95630.0000 92668.3687  3.10%     -    4s
     0     0 92668.3687    0    6 95630.0000 92668.3687  3.10%     -    5s
H    0     0                    93610.000000 92668.3687  1.01%     -    6s
     0     2 92686.4293    0    6 93610.0000 92686.4293  0.99%     -    7s
H    7     7                    93131.387137 92767.8663  0.39%   193    8s
H   10     8                    93014.000000 92767.8663  0.26%   193    8s
*   13     7               9    92966.000000 92767.8663  0.21%   156    8s
*   34    10              16    92950.000000 92809.0000  0.15%  90.7    9s
    46     5     cutoff    8      92950.0000 92862.0000  0.09%  82.8   10s
*   47     0               7    92872.000000 92872.0000   0.0%  83.3   10s

Cutting planes:
  Gomory: 1
  Flow cover: 3

Explored 48 nodes (16115 simplex iterations) in 10.08 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 9.287200000000e+04, best bound 9.287200000000e+04, gap 0.0%