Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:24:50 2012 Optimize a model with 505 rows, 468 columns and 1728 nonzeros Presolve removed 0 rows and 16 columns Presolve time: 0.00s Presolved: 505 rows, 452 columns, 1712 nonzeros Variable types: 0 continuous, 452 integer (451 binary) Found heuristic solution: objective 96.0000000 Root relaxation: objective 0.000000e+00, 275 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 0 189 96.00000 0.00000 100% - 0s H 0 0 83.0000000 0.00000 100% - 0s H 0 0 73.0000000 0.00000 100% - 0s H 0 0 67.0000000 0.00000 100% - 0s 0 0 0.35641 0 191 67.00000 0.35641 99.5% - 0s H 0 0 61.0000000 0.35641 99.4% - 0s 0 0 0.81648 0 193 61.00000 0.81648 98.7% - 0s H 0 0 46.0000000 0.81648 98.2% - 0s H 0 0 42.0000000 0.81648 98.1% - 0s 0 0 0.81806 0 196 42.00000 0.81806 98.1% - 0s 0 0 0.81806 0 196 42.00000 0.81806 98.1% - 0s H 0 0 39.0000000 0.81806 97.9% - 0s H 0 0 38.0000000 0.81806 97.8% - 0s 0 2 0.83703 0 195 38.00000 0.83703 97.8% - 0s * 78 78 43 25.0000000 2.18421 91.3% 23.4 0s H 81 55 23.0000000 2.18421 90.5% 22.6 0s * 174 52 70 17.0000000 2.20909 87.0% 20.6 0s * 322 95 13 16.0000000 6.24561 61.0% 25.8 0s Cutting planes: Gomory: 3 Mod-K: 1 Explored 906 nodes (27180 simplex iterations) in 1.17 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.600000000000e+01, best bound 1.600000000000e+01, gap 0.0%