Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:36:28 2012 Optimize a model with 285 rows, 309 columns and 1019 nonzeros Presolve removed 0 rows and 25 columns Presolve time: 0.00s Presolved: 285 rows, 284 columns, 994 nonzeros Variable types: 0 continuous, 284 integer (283 binary) Found heuristic solution: objective 47.0000000 Root relaxation: objective 0.000000e+00, 196 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 0 114 47.00000 0.00000 100% - 0s H 0 0 46.0000000 0.00000 100% - 0s H 0 0 43.0000000 0.00000 100% - 0s H 0 0 32.0000000 0.00000 100% - 0s H 0 0 30.0000000 0.00000 100% - 0s 0 0 0.12930 0 116 30.00000 0.12930 100% - 0s H 0 0 29.0000000 0.12930 100% - 0s H 0 0 28.0000000 0.12930 100% - 0s H 0 0 26.0000000 0.12930 100% - 0s 0 0 0.75618 0 124 26.00000 0.75618 97.1% - 0s H 0 0 23.0000000 0.75618 96.7% - 0s H 0 0 18.0000000 0.75618 95.8% - 0s 0 0 0.75630 0 121 18.00000 0.75630 95.8% - 0s H 0 0 10.0000000 0.75630 92.4% - 0s 0 0 0.75630 0 123 10.00000 0.75630 92.4% - 0s 0 0 0.75630 0 121 10.00000 0.75630 92.4% - 0s H 0 0 8.0000000 0.75630 90.5% - 0s 0 2 0.76332 0 121 8.00000 0.76332 90.5% - 0s * 20 13 17 3.0000000 1.00000 66.7% 28.4 0s Cutting planes: Gomory: 4 Mod-K: 1 Explored 57 nodes (3287 simplex iterations) in 0.13 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%