Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:44:55 2012 Optimize a model with 365 rows, 263 columns and 1173 nonzeros Presolve time: 0.00s Presolved: 365 rows, 263 columns, 1173 nonzeros Variable types: 0 continuous, 263 integer (263 binary) Found heuristic solution: objective 71.0000000 Root relaxation: objective 0.000000e+00, 124 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 81 71.00000 0.00000 100% - 0s H 0 0 68.0000000 0.00000 100% - 0s H 0 0 60.0000000 0.00000 100% - 0s 0 0 0.62057 0 86 60.00000 0.62057 99.0% - 0s H 0 0 59.0000000 0.62057 98.9% - 0s 0 0 0.64492 0 84 59.00000 0.64492 98.9% - 0s H 0 0 57.0000000 0.64492 98.9% - 0s 0 0 0.81453 0 84 57.00000 0.81453 98.6% - 0s H 0 0 55.0000000 0.81453 98.5% - 0s 0 0 0.81453 0 85 55.00000 0.81453 98.5% - 0s 0 0 0.81453 0 84 55.00000 0.81453 98.5% - 0s 0 2 0.86713 0 84 55.00000 0.86713 98.4% - 0s * 42 38 25 45.0000000 4.43703 90.1% 28.3 0s * 77 54 23 37.0000000 4.45965 87.9% 25.1 0s * 800 370 34 36.0000000 15.48485 57.0% 21.8 1s * 1246 297 33 35.0000000 18.16667 48.1% 21.3 1s * 1302 278 33 34.0000000 18.22222 46.4% 21.4 1s * 1477 240 30 33.0000000 18.66667 43.4% 21.3 1s * 1761 234 26 32.0000000 20.85714 34.8% 20.8 1s Cutting planes: Gomory: 1 Mod-K: 2 Explored 3246 nodes (63990 simplex iterations) in 3.22 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.200000000000e+01, best bound 3.200000000000e+01, gap 0.0%