Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:56:23 2012 Optimize a model with 103 rows, 252 columns and 252 nonzeros Model has 204 quadratic constraints Presolve time: 1.20s Presolved: 103 rows, 252 columns, 252 nonzeros Variable types: 204 continuous, 48 integer (48 binary) Root relaxation: objective 0.000000e+00, 24 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 48.0000000 - - - 1s 0 0 0.00000 0 25 48.00000 0.00000 100% - 1s 0 0 0.04031 0 45 48.00000 0.04031 100% - 1s 0 2 0.08333 0 45 48.00000 0.08333 100% - 1s * 28 28 17 25.0000000 3.99855 84.0% 32.8 1s H 72 53 23.0000000 4.16667 81.9% 29.6 1s * 1166 157 41 22.0000000 16.84615 23.4% 22.9 2s Explored 1408 nodes (30702 simplex iterations) in 2.41 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.200000000000e+01, best bound 2.200000000000e+01, gap 0.0%