Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:12:36 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 5.611561e+04, 5521 iterations, 2.47 seconds

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

     0     0 56115.6101    0   41          - 56115.6101     -      -    2s
H    0     0                    71417.000000 56115.6101  21.4%     -    3s
     0     0 69733.6013    0    3 71417.0000 69733.6013  2.36%     -    5s
H    0     0                    69768.000000 69733.6013  0.05%     -    5s
     0     0 69762.0000    0    1 69768.0000 69762.0000  0.01%     -    5s

Cutting planes:
  Gomory: 1
  Implied bound: 38

Explored 0 nodes (8024 simplex iterations) in 5.52 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.976800000000e+04, best bound 6.976200000000e+04, gap 0.0086%