Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:20:17 2012 Optimize a model with 88 rows, 238 columns and 238 nonzeros Model has 174 quadratic constraints Presolve removed 0 rows and 2 columns Presolve time: 1.01s Presolved: 88 rows, 236 columns, 236 nonzeros Variable types: 174 continuous, 62 integer (61 binary) Root relaxation: objective 0.000000e+00, 32 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 50.0000000 - - - 1s 0 0 0.00000 0 16 50.00000 0.00000 100% - 1s 0 0 0.00000 0 24 50.00000 0.00000 100% - 1s 0 0 0.00000 0 24 50.00000 0.00000 100% - 1s 0 2 0.00000 0 24 50.00000 0.00000 100% - 1s * 32 32 23 22.0000000 2.16667 90.2% 21.4 1s * 36 34 26 20.0000000 2.16667 89.2% 19.2 1s H 48 31 15.0000000 2.21965 85.2% 18.8 1s * 85 36 11 12.0000000 3.66667 69.4% 19.4 1s * 249 46 9 11.0000000 6.44797 41.4% 17.7 1s * 284 30 7 10.0000000 6.81250 31.9% 17.3 1s Cutting planes: Gomory: 1 Explored 339 nodes (6301 simplex iterations) in 1.18 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.000000000000e+01, best bound 1.000000000000e+01, gap 0.0%