Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:40:28 2012 Optimize a model with 82 rows, 202 columns and 202 nonzeros Model has 162 quadratic constraints Presolve removed 0 rows and 1 columns Presolve time: 0.94s Presolved: 82 rows, 201 columns, 201 nonzeros Variable types: 162 continuous, 39 integer (38 binary) Root relaxation: objective 0.000000e+00, 19 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 45.0000000 - - - 0s 0 0 0.00000 0 17 45.00000 0.00000 100% - 0s 0 0 0.00000 0 26 45.00000 0.00000 100% - 0s 0 0 0.00000 0 26 45.00000 0.00000 100% - 0s 0 2 0.00000 0 26 45.00000 0.00000 100% - 0s * 30 30 18 27.0000000 2.46667 90.9% 20.4 0s * 31 29 19 24.0000000 2.46667 89.7% 20.0 0s H 49 39 21.0000000 2.57143 87.8% 18.6 0s * 70 47 13 18.0000000 5.33218 70.4% 17.2 0s * 114 51 13 16.0000000 5.75433 64.0% 15.5 1s Cutting planes: Gomory: 1 Explored 409 nodes (6320 simplex iterations) in 1.10 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.600000000000e+01, best bound 1.600000000000e+01, gap 0.0%