Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:35:04 2012 Optimize a model with 161 rows, 483 columns and 483 nonzeros Model has 320 quadratic constraints Presolve removed 0 rows and 23 columns Presolve time: 1.87s Presolved: 161 rows, 460 columns, 460 nonzeros Variable types: 320 continuous, 140 integer (139 binary) Root relaxation: objective 0.000000e+00, 57 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 78.0000000 - - - 1s 0 0 0.00000 0 32 78.00000 0.00000 100% - 1s 0 0 0.00000 0 30 78.00000 0.00000 100% - 1s 0 0 0.00000 0 30 78.00000 0.00000 100% - 1s 0 2 0.00000 0 91 78.00000 0.00000 100% - 1s H 16 16 16.0000000 1.61029 89.9% 62.9 1s * 28 28 17 8.0000000 1.61029 79.9% 41.9 2s H 181 52 8.0000000 4.54839 43.1% 27.1 2s * 324 38 14 7.0000000 5.49283 21.5% 20.8 2s Cutting planes: Gomory: 2 Explored 429 nodes (8610 simplex iterations) in 2.19 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0%