Gurobi 5.0.1 (linux64) logging started Thu Jan 24 18:13:28 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 60015.000000

Root relaxation: objective 6.172746e+04, 11 iterations, 0.00 seconds

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

     0     0 61727.4554    0    5 60015.0000 61727.4554  2.85%     -    0s
H    0     0                    61423.000000 61727.4554  0.50%     -    0s
     0     0 61707.6113    0    8 61423.0000 61707.6113  0.46%     -    0s
     0     0 61706.8156    0    9 61423.0000 61706.8156  0.46%     -    0s
     0     0 61706.8156    0    5 61423.0000 61706.8156  0.46%     -    0s
     0     0 61706.8156    0    8 61423.0000 61706.8156  0.46%     -    0s
     0     0 61706.8156    0    9 61423.0000 61706.8156  0.46%     -    0s
     0     2 61706.5988    0    9 61423.0000 61706.5988  0.46%     -    0s
H   63    32                    61520.000000 61697.0163  0.29%   2.1    0s

Cutting planes:
  Gomory: 5
  Cover: 1
  MIR: 4
  Zero half: 1

Explored 6591 nodes (15748 simplex iterations) in 0.34 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.152000000000e+04, best bound 6.152500000000e+04, gap 0.0081%