Gurobi 5.0.1 (linux64) logging started Sun Nov 18 09:03:27 2012
Optimize a model with 595 rows, 537 columns and 2022 nonzeros
Presolve removed 0 rows and 20 columns
Presolve time: 0.00s
Presolved: 595 rows, 517 columns, 2002 nonzeros
Variable types: 0 continuous, 517 integer (516 binary)
Found heuristic solution: objective 115.0000000
Root relaxation: objective 0.000000e+00, 281 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 0 211 115.00000 0.00000 100% - 0s
H 0 0 85.0000000 0.00000 100% - 0s
H 0 0 71.0000000 0.00000 100% - 0s
0 0 0.34528 0 213 71.00000 0.34528 100% - 0s
H 0 0 60.0000000 0.34528 99.4% - 0s
0 0 0.74119 0 216 60.00000 0.74119 98.8% - 0s
H 0 0 45.0000000 0.74119 98.4% - 0s
0 0 0.81632 0 215 45.00000 0.81632 98.2% - 0s
H 0 0 42.0000000 0.81632 98.1% - 0s
H 0 0 41.0000000 0.81632 98.0% - 0s
0 2 0.81632 0 215 41.00000 0.81632 98.0% - 0s
* 54 44 36 26.0000000 1.00000 96.2% 27.8 0s
H 551 334 25.0000000 1.87923 92.5% 36.8 1s
H 1827 587 23.0000000 11.41860 50.4% 28.6 3s
2812 899 16.35429 19 204 23.00000 13.71287 40.4% 26.1 5s
6157 1419 21.26380 20 198 23.00000 16.00000 30.4% 22.9 10s
9628 1565 20.14094 23 185 23.00000 17.41667 24.3% 22.0 15s
13561 1500 21.54667 25 188 23.00000 18.65306 18.9% 21.1 20s
17919 1108 21.33577 29 170 23.00000 19.88652 13.5% 19.5 25s
Explored 22099 nodes (402974 simplex iterations) in 29.06 seconds
Thread count was 1 (of 16 available processors)
Optimal solution found (tolerance 1.00e-04)
Best objective 2.300000000000e+01, best bound 2.300000000000e+01, gap 0.0%