Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:40:50 2012 Optimize a model with 493 rows, 466 columns and 1696 nonzeros Presolve removed 0 rows and 25 columns Presolve time: 0.00s Presolved: 493 rows, 441 columns, 1671 nonzeros Variable types: 0 continuous, 441 integer (440 binary) Found heuristic solution: objective 93.0000000 Root relaxation: objective 0.000000e+00, 270 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 0 185 93.00000 0.00000 100% - 0s H 0 0 62.0000000 0.00000 100% - 0s H 0 0 60.0000000 0.00000 100% - 0s 0 0 0.34737 0 188 60.00000 0.34737 99.4% - 0s H 0 0 51.0000000 0.34737 99.3% - 0s 0 0 0.83276 0 191 51.00000 0.83276 98.4% - 0s H 0 0 47.0000000 0.83276 98.2% - 0s 0 0 0.83362 0 193 47.00000 0.83362 98.2% - 0s 0 0 0.83362 0 193 47.00000 0.83362 98.2% - 0s H 0 0 45.0000000 0.83362 98.1% - 0s H 0 0 40.0000000 0.83362 97.9% - 0s H 0 0 37.0000000 0.83362 97.7% - 0s H 0 0 35.0000000 0.83362 97.6% - 0s 0 2 0.85144 0 193 35.00000 0.85144 97.6% - 0s H 27 27 30.0000000 1.86093 93.8% 31.1 0s H 54 38 18.0000000 1.86093 89.7% 23.5 0s H 77 52 17.0000000 1.96582 88.4% 27.4 0s H 415 151 16.0000000 7.05714 55.9% 29.8 0s Cutting planes: Gomory: 3 Mod-K: 1 Explored 1363 nodes (37520 simplex iterations) in 1.67 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.600000000000e+01, best bound 1.600000000000e+01, gap 0.0%