Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:48:16 2012 Optimize a model with 501 rows, 472 columns and 1722 nonzeros Presolve removed 0 rows and 20 columns Presolve time: 0.00s Presolved: 501 rows, 452 columns, 1702 nonzeros Variable types: 0 continuous, 452 integer (451 binary) Found heuristic solution: objective 102.0000000 Root relaxation: objective 0.000000e+00, 265 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 0 195 102.00000 0.00000 100% - 0s H 0 0 74.0000000 0.00000 100% - 0s H 0 0 71.0000000 0.00000 100% - 0s H 0 0 68.0000000 0.00000 100% - 0s 0 0 0.43077 0 196 68.00000 0.43077 99.4% - 0s H 0 0 66.0000000 0.43077 99.3% - 0s 0 0 1.00000 0 201 66.00000 1.00000 98.5% - 0s H 0 0 60.0000000 1.00000 98.3% - 0s H 0 0 55.0000000 1.00000 98.2% - 0s 0 0 1.00000 0 198 55.00000 1.00000 98.2% - 0s H 0 0 53.0000000 1.00000 98.1% - 0s 0 0 1.00000 0 201 53.00000 1.00000 98.1% - 0s 0 0 1.00000 0 198 53.00000 1.00000 98.1% - 0s H 0 0 50.0000000 1.00000 98.0% - 0s H 0 0 48.0000000 1.00000 97.9% - 0s H 0 0 46.0000000 1.00000 97.8% - 0s 0 2 1.00000 0 197 46.00000 1.00000 97.8% - 0s H 27 27 18.0000000 1.00000 94.4% 37.4 0s * 28 19 16 15.0000000 1.00000 93.3% 39.6 0s * 214 48 12 14.0000000 7.66667 45.2% 35.5 0s Cutting planes: Gomory: 3 Mod-K: 1 Explored 393 nodes (14142 simplex iterations) in 0.71 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.400000000000e+01, best bound 1.400000000000e+01, gap 0.0%