Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:19:03 2012 Optimize a model with 243 rows, 182 columns and 787 nonzeros Presolve time: 0.00s Presolved: 243 rows, 182 columns, 787 nonzeros Variable types: 0 continuous, 182 integer (182 binary) Found heuristic solution: objective 53.0000000 Root relaxation: objective 0.000000e+00, 113 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 58 53.00000 0.00000 100% - 0s H 0 0 44.0000000 0.00000 100% - 0s 0 0 0.48276 0 59 44.00000 0.48276 98.9% - 0s H 0 0 33.0000000 0.48276 98.5% - 0s 0 0 1.00000 0 60 33.00000 1.00000 97.0% - 0s H 0 0 31.0000000 1.00000 96.8% - 0s 0 0 1.00000 0 62 31.00000 1.00000 96.8% - 0s H 0 0 30.0000000 1.00000 96.7% - 0s 0 0 1.00000 0 58 30.00000 1.00000 96.7% - 0s 0 0 1.00000 0 58 30.00000 1.00000 96.7% - 0s 0 0 1.00000 0 58 30.00000 1.00000 96.7% - 0s 0 0 1.00000 0 58 30.00000 1.00000 96.7% - 0s H 0 0 28.0000000 1.00000 96.4% - 0s 0 2 1.00000 0 58 28.00000 1.00000 96.4% - 0s * 31 26 18 26.0000000 4.43860 82.9% 23.6 0s * 62 38 20 24.0000000 4.94118 79.4% 20.4 0s * 124 58 10 21.0000000 7.30000 65.2% 23.1 0s * 235 65 11 20.0000000 7.96226 60.2% 23.2 0s Cutting planes: Gomory: 2 Zero half: 2 Explored 567 nodes (14266 simplex iterations) in 0.40 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.000000000000e+01, best bound 2.000000000000e+01, gap 0.0%