Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:20:24 2013

Optimize a model with 605 rows, 30305 columns and 60555 nonzeros
Presolve time: 0.04s
Presolved: 605 rows, 30305 columns, 60555 nonzeros
Variable types: 30250 continuous, 55 integer (55 binary)

Root relaxation: objective 6.655849e+04, 1514 iterations, 0.04 seconds

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

     0     0 66558.4875    0    5          - 66558.4875     -      -    0s
H    0     0                    68702.000000 66558.4875  3.12%     -    0s
     0     0 66892.5479    0    3 68702.0000 66892.5479  2.63%     -    0s
H    0     0                    68006.000000 66892.5479  1.64%     -    0s
     0     0 66928.9433    0    2 68006.0000 66928.9433  1.58%     -    0s
H    0     0                    67605.000000 66928.9433  1.00%     -    0s
     0     0 66931.2703    0    1 67605.0000 66931.2703  1.00%     -    0s
     0     0 66936.1111    0    1 67605.0000 66936.1111  0.99%     -    0s
     0     0 66936.1111    0    1 67605.0000 66936.1111  0.99%     -    0s
H    0     0                    67590.000000 66936.1111  0.97%     -    0s
     0     0 66936.1111    0    1 67590.0000 66936.1111  0.97%     -    0s
     0     0 66936.1111    0    1 67590.0000 66936.1111  0.97%     -    0s
     0     2 66972.1244    0    1 67590.0000 66972.1244  0.91%     -    0s
*    3     3               3    66994.000000 66994.0000   0.0%  31.0    0s

Cutting planes:
  Implied bound: 46

Explored 4 nodes (1786 simplex iterations) in 0.64 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.699400000000e+04, best bound 6.699400000000e+04, gap 0.0%