Gurobi 5.0.1 (linux64) logging started Thu Jan 24 18:13:27 2013

Optimize a model with 5 rows, 100 columns and 500 nonzeros
Presolve time: 0.00s
Presolved: 5 rows, 100 columns, 500 nonzeros
Variable types: 0 continuous, 100 integer (100 binary)
Found heuristic solution: objective 56372.000000

Root relaxation: objective 6.133896e+04, 17 iterations, 0.00 seconds

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

     0     0 61338.9592    0    5 56372.0000 61338.9592  8.81%     -    0s
H    0     0                    60989.000000 61338.9592  0.57%     -    0s
     0     0 61327.8722    0    7 60989.0000 61327.8722  0.56%     -    0s
     0     0 61321.7208    0    8 60989.0000 61321.7208  0.55%     -    0s
     0     0 61316.1914    0    9 60989.0000 61316.1914  0.54%     -    0s
     0     0 61311.8270    0   10 60989.0000 61311.8270  0.53%     -    0s
     0     0 61307.2458    0   10 60989.0000 61307.2458  0.52%     -    0s
     0     0 61306.6536    0   12 60989.0000 61306.6536  0.52%     -    0s
     0     2 61306.3965    0   12 60989.0000 61306.3965  0.52%     -    0s
H    2     2                    60991.000000 61297.9275  0.50%   3.5    0s
H   93    68                    61005.000000 61286.3586  0.46%   2.5    0s
H  304   214                    61029.000000 61274.9126  0.40%   2.4    0s
H  646   405                    61091.000000 61259.4309  0.28%   2.8    0s

Cutting planes:
  Gomory: 4
  Cover: 1
  MIR: 3

Explored 6677 nodes (16187 simplex iterations) in 0.36 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.109100000000e+04, best bound 6.109600000000e+04, gap 0.0082%