Gurobi 5.0.1 (linux64) logging started Thu Jan 24 18:13:26 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 56433.000000

Root relaxation: objective 6.064421e+04, 12 iterations, 0.00 seconds

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

     0     0 60644.2100    0    5 56433.0000 60644.2100  7.46%     -    0s
H    0     0                    60219.000000 60644.2100  0.71%     -    0s
     0     0 60639.1495    0    7 60219.0000 60639.1495  0.70%     -    0s
H    0     0                    60330.000000 60639.1495  0.51%     -    0s
     0     0 60637.2559    0    9 60330.0000 60637.2559  0.51%     -    0s
     0     0 60636.3109    0   11 60330.0000 60636.3109  0.51%     -    0s
H    0     0                    60386.000000 60636.3109  0.41%     -    0s
     0     0 60636.3109    0    5 60386.0000 60636.3109  0.41%     -    0s
H    0     0                    60422.000000 60636.3109  0.35%     -    0s
     0     0 60634.5818    0   10 60422.0000 60634.5818  0.35%     -    0s
     0     0 60633.9688    0   11 60422.0000 60633.9688  0.35%     -    0s
     0     2 60633.2534    0   11 60422.0000 60633.2534  0.35%     -    0s
H  169   114                    60474.000000 60624.2883  0.25%   2.8    0s
H 1126   491                    60478.000000 60611.8595  0.22%   2.7    0s
H 1393   530                    60479.000000 60607.9386  0.21%   2.7    0s

Cutting planes:
  Gomory: 4
  Cover: 2
  MIR: 5

Explored 21759 nodes (50187 simplex iterations) in 0.84 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.047900000000e+04, best bound 6.048400000000e+04, gap 0.0083%