Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:10:12 2012 Optimize a model with 55 rows, 149 columns and 149 nonzeros Model has 108 quadratic constraints Presolve removed 0 rows and 1 columns Presolve time: 0.63s Presolved: 55 rows, 148 columns, 148 nonzeros Variable types: 108 continuous, 40 integer (39 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 32.0000000 - - - 0s 0 0 0.00000 0 2 32.00000 0.00000 100% - 0s 0 0 0.00000 0 37 32.00000 0.00000 100% - 0s 0 0 0.00000 0 36 32.00000 0.00000 100% - 0s 0 2 0.00000 0 34 32.00000 0.00000 100% - 0s * 25 25 16 10.0000000 2.11111 78.9% 16.6 0s * 27 19 18 9.0000000 2.11111 76.5% 15.6 0s H 39 19 7.0000000 2.17143 69.0% 14.1 0s * 50 10 7 5.0000000 2.68182 46.4% 13.0 0s Cutting planes: Explored 65 nodes (1118 simplex iterations) in 0.67 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.000000000000e+00, best bound 5.000000000000e+00, gap 0.0%