Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:56:22 2012 Optimize a model with 108 rows, 262 columns and 262 nonzeros Model has 214 quadratic constraints Presolve time: 1.25s Presolved: 108 rows, 262 columns, 262 nonzeros Variable types: 214 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 56.0000000 - - - 1s 0 0 0.00000 0 25 56.00000 0.00000 100% - 1s 0 0 0.04167 0 48 56.00000 0.04167 100% - 1s 0 2 0.08333 0 48 56.00000 0.08333 100% - 1s * 36 33 19 24.0000000 3.61538 84.9% 24.3 1s * 253 103 13 23.0000000 12.26667 46.7% 22.7 1s * 600 92 10 22.0000000 16.00000 27.3% 20.5 1s Cutting planes: Gomory: 2 Explored 937 nodes (18458 simplex iterations) in 1.75 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%