Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:42:03 2012 Optimize a model with 69 rows, 178 columns and 178 nonzeros Model has 136 quadratic constraints Presolve time: 0.79s Presolved: 69 rows, 178 columns, 178 nonzeros Variable types: 136 continuous, 42 integer (42 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 32.0000000 - - - 0s 0 0 0.00000 0 32 32.00000 0.00000 100% - 0s 0 0 0.28136 0 42 32.00000 0.28136 99.1% - 0s 0 2 0.29338 0 42 32.00000 0.29338 99.1% - 0s * 23 23 12 15.0000000 1.96429 86.9% 18.7 0s * 43 32 12 14.0000000 2.16327 84.5% 17.7 0s * 60 39 10 13.0000000 2.97848 77.1% 18.2 0s H 164 54 12.0000000 5.92857 50.6% 14.4 0s H 217 45 11.0000000 7.22222 34.3% 14.6 0s Cutting planes: Gomory: 1 Explored 342 nodes (5234 simplex iterations) in 0.91 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.100000000004e+01, best bound 1.100000000004e+01, gap 0.0%