Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:40:32 2012 Optimize a model with 88 rows, 214 columns and 214 nonzeros Model has 174 quadratic constraints Presolve time: 1.01s Presolved: 88 rows, 214 columns, 214 nonzeros Variable types: 174 continuous, 40 integer (40 binary) Root relaxation: objective 0.000000e+00, 20 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 42.0000000 - - - 1s 0 0 0.00000 0 8 42.00000 0.00000 100% - 1s 0 0 0.00000 0 38 42.00000 0.00000 100% - 1s 0 0 0.00000 0 38 42.00000 0.00000 100% - 1s H 0 0 39.0000000 0.00000 100% - 1s 0 2 0.00000 0 38 39.00000 0.00000 100% - 1s * 36 36 19 27.0000000 2.10526 92.2% 23.7 1s * 59 42 13 22.0000000 2.11111 90.4% 25.3 1s H 73 43 17.0000000 3.05405 82.0% 25.8 1s * 80 41 11 16.0000000 3.05405 80.9% 24.4 1s Cutting planes: Explored 419 nodes (9394 simplex iterations) in 1.21 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%