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 59439.000000

Root relaxation: objective 6.169608e+04, 13 iterations, 0.00 seconds

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

     0     0 61696.0809    0    5 59439.0000 61696.0809  3.80%     -    0s
H    0     0                    61402.000000 61696.0809  0.48%     -    0s
     0     0 61688.7884    0    8 61402.0000 61688.7884  0.47%     -    0s
     0     0 61686.0819    0    8 61402.0000 61686.0819  0.46%     -    0s
     0     0 61685.1327    0    9 61402.0000 61685.1327  0.46%     -    0s
     0     0 61685.1327    0    5 61402.0000 61685.1327  0.46%     -    0s
     0     0 61685.1327    0    9 61402.0000 61685.1327  0.46%     -    0s
     0     0 61681.7976    0   11 61402.0000 61681.7976  0.46%     -    0s
     0     0 61680.5118    0   10 61402.0000 61680.5118  0.45%     -    0s
     0     2 61679.0955    0   10 61402.0000 61679.0955  0.45%     -    0s
H  160   117                    61464.000000 61665.0988  0.33%   2.6    0s
H  688   404                    61474.000000 61650.1381  0.29%   2.6    0s
H  738   377                    61519.000000 61650.1381  0.21%   2.6    0s
H 1234   452                    61522.000000 61643.1461  0.20%   2.5    0s
H 1620   438                    61538.000000 61633.3194  0.15%   2.5    0s

Cutting planes:
  Gomory: 3
  Cover: 1
  MIR: 5

Explored 5288 nodes (12797 simplex iterations) in 0.31 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.153800000000e+04, best bound 6.154300000000e+04, gap 0.0081%