Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:00:18 2012 Optimize a model with 193 rows, 580 columns and 580 nonzeros Model has 384 quadratic constraints Presolve removed 0 rows and 27 columns Presolve time: 2.24s Presolved: 193 rows, 553 columns, 553 nonzeros Variable types: 384 continuous, 169 integer (168 binary) Root relaxation: objective 0.000000e+00, 69 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 3 96.00000 0.00000 100% - 2s 0 0 0.00000 0 2 96.00000 0.00000 100% - 2s 0 0 0.00000 0 88 96.00000 0.00000 100% - 2s 0 2 0.00000 0 83 96.00000 0.00000 100% - 2s * 26 24 19 11.0000000 1.93617 82.4% 51.8 2s H 141 65 10.0000000 3.26000 67.4% 17.8 2s * 176 66 11 9.0000000 3.35593 62.7% 16.3 2s Explored 1581 nodes (34593 simplex iterations) in 4.40 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.000000000000e+00, best bound 9.000000000000e+00, gap 0.0%