Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:09:36 2012 Optimize a model with 33 rows, 98 columns and 98 nonzeros Model has 64 quadratic constraints Presolve removed 0 rows and 4 columns Presolve time: 0.37s Presolved: 33 rows, 94 columns, 94 nonzeros Variable types: 64 continuous, 30 integer (29 binary) Root relaxation: objective 0.000000e+00, 15 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 15.0000000 - - - 0s 0 0 0.00000 0 3 15.00000 0.00000 100% - 0s 0 0 0.00000 0 16 15.00000 0.00000 100% - 0s 0 0 0.00000 0 22 15.00000 0.00000 100% - 0s 0 2 0.00000 0 22 15.00000 0.00000 100% - 0s * 14 12 9 5.0000000 0.72727 85.5% 10.6 0s * 15 9 9 4.0000000 0.72727 81.8% 10.7 0s * 20 8 5 3.0000000 0.76190 74.6% 9.6 0s Cutting planes: Explored 37 nodes (575 simplex iterations) in 0.39 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%