Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:30:08 2012 Optimize a model with 285 rows, 218 columns and 928 nonzeros Presolve time: 0.00s Presolved: 285 rows, 218 columns, 928 nonzeros Variable types: 0 continuous, 218 integer (218 binary) Found heuristic solution: objective 59.0000000 Root relaxation: objective 0.000000e+00, 100 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 76 59.00000 0.00000 100% - 0s H 0 0 53.0000000 0.00000 100% - 0s H 0 0 45.0000000 0.00000 100% - 0s H 0 0 44.0000000 0.00000 100% - 0s 0 0 0.54286 0 77 44.00000 0.54286 98.8% - 0s 0 0 1.00000 0 78 44.00000 1.00000 97.7% - 0s 0 0 1.25235 0 79 44.00000 1.25235 97.2% - 0s H 0 0 42.0000000 1.25235 97.0% - 0s H 0 0 40.0000000 1.25235 96.9% - 0s 0 0 1.29524 0 80 40.00000 1.29524 96.8% - 0s H 0 0 36.0000000 1.29524 96.4% - 0s 0 0 1.40100 0 81 36.00000 1.40100 96.1% - 0s 0 0 1.44134 0 82 36.00000 1.44134 96.0% - 0s 0 0 1.44960 0 83 36.00000 1.44960 96.0% - 0s 0 2 1.45085 0 83 36.00000 1.45085 96.0% - 0s * 36 32 26 33.0000000 5.19940 84.2% 23.8 0s H 54 31 26.0000000 5.27056 79.7% 23.6 0s * 231 84 11 24.0000000 12.35714 48.5% 19.5 0s Cutting planes: Gomory: 4 Mod-K: 3 Explored 1263 nodes (19412 simplex iterations) in 0.75 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.400000000000e+01, best bound 2.400000000000e+01, gap 0.0%