Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:44:53 2012
Optimize a model with 309 rows, 235 columns and 1005 nonzeros
Presolve removed 0 rows and 1 columns
Presolve time: 0.00s
Presolved: 309 rows, 234 columns, 1004 nonzeros
Variable types: 0 continuous, 234 integer (233 binary)
Found heuristic solution: objective 64.0000000
Root relaxation: objective 0.000000e+00, 117 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 79 64.00000 0.00000 100% - 0s
H 0 0 62.0000000 0.00000 100% - 0s
H 0 0 61.0000000 0.00000 100% - 0s
0 0 0.48316 0 82 61.00000 0.48316 99.2% - 0s
H 0 0 60.0000000 0.48316 99.2% - 0s
0 0 0.90489 0 84 60.00000 0.90489 98.5% - 0s
H 0 0 55.0000000 0.90489 98.4% - 0s
0 0 0.90489 0 84 55.00000 0.90489 98.4% - 0s
H 0 0 50.0000000 0.90489 98.2% - 0s
H 0 0 43.0000000 0.90489 97.9% - 0s
H 0 0 41.0000000 0.90489 97.8% - 0s
0 2 0.90561 0 84 41.00000 0.90561 97.8% - 0s
* 47 38 29 32.0000000 2.79234 91.3% 26.9 0s
* 76 55 17 31.0000000 3.33010 89.3% 27.7 0s
* 160 117 16 30.0000000 5.15280 82.8% 29.8 0s
* 287 215 19 29.0000000 6.46948 77.7% 30.7 0s
H 356 217 28.0000000 8.11187 71.0% 28.8 0s
* 591 326 29 27.0000000 10.19434 62.2% 27.1 0s
* 593 313 28 26.0000000 10.19434 60.8% 27.0 0s
H 605 288 25.0000000 10.19529 59.2% 27.3 0s
Explored 2074 nodes (49308 simplex iterations) in 1.73 seconds
Thread count was 1 (of 16 available processors)
Optimal solution found (tolerance 1.00e-04)
Best objective 2.500000000000e+01, best bound 2.500000000000e+01, gap 0.0%