Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:16:00 2012 Optimize a model with 218 rows, 645 columns and 645 nonzeros Model has 434 quadratic constraints Presolve removed 0 rows and 28 columns Presolve time: 2.53s Presolved: 218 rows, 617 columns, 617 nonzeros Variable types: 434 continuous, 183 integer (182 binary) Root relaxation: objective 0.000000e+00, 77 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 109.0000000 - - - 2s 0 0 0.00000 0 67 109.00000 0.00000 100% - 2s 0 0 0.00000 0 68 109.00000 0.00000 100% - 2s 0 0 0.00000 0 147 109.00000 0.00000 100% - 2s 0 2 0.00000 0 145 109.00000 0.00000 100% - 2s * 24 24 16 14.0000000 1.85366 86.8% 57.3 2s * 29 25 20 13.0000000 1.85366 85.7% 53.5 2s H 105 61 12.0000000 2.28633 80.9% 31.8 2s * 274 72 6 11.0000000 7.00000 36.4% 21.8 2s * 398 63 21 10.0000000 8.28700 17.1% 20.0 3s Cutting planes: Explored 577 nodes (12067 simplex iterations) in 3.15 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%