Gurobi 5.0.1 (linux64) logging started Sun Nov 18 02:04:01 2012

Optimize a model with 391 rows, 258 columns and 1233 nonzeros
Presolve time: 0.00s
Presolved: 391 rows, 258 columns, 1233 nonzeros
Variable types: 0 continuous, 258 integer (258 binary)
Found heuristic solution: objective 98.0000000
Found heuristic solution: objective 82.0000000

Root relaxation: objective 0.000000e+00, 96 iterations, 0.00 seconds

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

     0     0    0.00000    0   63   82.00000    0.00000   100%     -    0s
H    0     0                      80.0000000    0.00000   100%     -    0s
     0     0    0.73651    0   65   80.00000    0.73651  99.1%     -    0s
     0     0    0.73651    0   65   80.00000    0.73651  99.1%     -    0s
     0     0    0.74182    0   67   80.00000    0.74182  99.1%     -    0s
H    0     0                      61.0000000    0.74182  98.8%     -    0s
     0     2    0.75000    0   67   61.00000    0.75000  98.8%     -    0s
*   46    43              28      54.0000000    3.95235  92.7%  26.9    0s
*  593   375              21      53.0000000   13.70000  74.2%  26.0    0s
* 1313   489              35      52.0000000   20.75000  60.1%  26.5    1s
* 3099   827              34      51.0000000   29.12500  42.9%  25.3    3s
  4785  1188   48.20000   27  136   51.00000   32.14286  37.0%  24.8    5s
* 5499  1258              32      50.0000000   33.00000  34.0%  24.7    5s
* 9813  1493              33      49.0000000   37.00000  24.5%  24.1    9s
 10620  1461   43.84615   26  132   49.00000   37.25000  24.0%  24.0   10s
 17949   764     cutoff   28        49.00000   41.57143  15.2%  23.0   15s

Explored 20199 nodes (455715 simplex iterations) in 16.29 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.900000000000e+01, best bound 4.900000000000e+01, gap 0.0%