Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:27:40 2012 Optimize a model with 243 rows, 196 columns and 801 nonzeros Presolve removed 0 rows and 1 columns Presolve time: 0.00s Presolved: 243 rows, 195 columns, 800 nonzeros Variable types: 0 continuous, 195 integer (194 binary) Found heuristic solution: objective 52.0000000 Root relaxation: objective 0.000000e+00, 112 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 73 52.00000 0.00000 100% - 0s H 0 0 43.0000000 0.00000 100% - 0s H 0 0 35.0000000 0.00000 100% - 0s H 0 0 34.0000000 0.00000 100% - 0s 0 0 0.63927 0 74 34.00000 0.63927 98.1% - 0s H 0 0 32.0000000 0.63927 98.0% - 0s 0 0 1.22151 0 79 32.00000 1.22151 96.2% - 0s H 0 0 29.0000000 1.22151 95.8% - 0s 0 0 1.22466 0 80 29.00000 1.22466 95.8% - 0s 0 0 1.22466 0 80 29.00000 1.22466 95.8% - 0s H 0 0 28.0000000 1.22466 95.6% - 0s 0 2 1.24018 0 80 28.00000 1.24018 95.6% - 0s * 27 25 16 21.0000000 4.10715 80.4% 29.1 0s * 52 34 16 18.0000000 4.11208 77.2% 27.4 0s * 128 76 12 17.0000000 6.46149 62.0% 26.7 0s Cutting planes: Gomory: 3 Zero half: 3 Mod-K: 1 Explored 831 nodes (18981 simplex iterations) in 0.59 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.700000000000e+01, best bound 1.700000000000e+01, gap 0.0%