Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:42:32 2012 Optimize a model with 104 rows, 249 columns and 249 nonzeros Model has 206 quadratic constraints Presolve time: 1.20s Presolved: 104 rows, 249 columns, 249 nonzeros Variable types: 206 continuous, 43 integer (43 binary) Root relaxation: objective 0.000000e+00, 21 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 47.0000000 - - - 1s 0 0 0.00000 0 18 47.00000 0.00000 100% - 1s 0 0 0.00000 0 31 47.00000 0.00000 100% - 1s 0 0 0.00000 0 20 47.00000 0.00000 100% - 1s 0 2 0.00000 0 18 47.00000 0.00000 100% - 1s * 26 25 15 23.0000000 3.66667 84.1% 28.9 1s H 137 85 22.0000000 9.29412 57.8% 22.9 1s Cutting planes: Explored 1064 nodes (21271 simplex iterations) in 1.71 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.200000000028e+01, best bound 2.200000000028e+01, gap 0.0%