Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:01:37 2012 Optimize a model with 198 rows, 591 columns and 591 nonzeros Model has 394 quadratic constraints Presolve removed 0 rows and 24 columns Presolve time: 2.30s Presolved: 198 rows, 567 columns, 567 nonzeros Variable types: 394 continuous, 173 integer (172 binary) Root relaxation: objective 0.000000e+00, 71 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 96.0000000 - - - 2s 0 0 0.00000 0 51 96.00000 0.00000 100% - 2s 0 0 0.00000 0 91 96.00000 0.00000 100% - 2s 0 0 0.00000 0 91 96.00000 0.00000 100% - 2s 0 2 0.00000 0 128 96.00000 0.00000 100% - 2s * 41 41 28 12.0000000 1.16667 90.3% 43.3 2s * 155 60 26 11.0000000 1.93976 82.4% 27.5 2s * 280 94 23 10.0000000 3.43022 65.7% 25.8 2s 1422 119 9.09615 25 300 10.00000 8.57143 14.3% 31.0 5s Explored 1751 nodes (50638 simplex iterations) in 5.25 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%