Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:37:59 2012 Optimize a model with 29 rows, 79 columns and 79 nonzeros Model has 56 quadratic constraints Presolve removed 0 rows and 1 columns Presolve time: 0.33s Presolved: 29 rows, 78 columns, 78 nonzeros Variable types: 56 continuous, 22 integer (21 binary) Root relaxation: objective 0.000000e+00, 11 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 17.0000000 - - - 0s 0 0 0.00000 0 2 17.00000 0.00000 100% - 0s 0 0 0.00000 0 19 17.00000 0.00000 100% - 0s 0 0 0.00000 0 18 17.00000 0.00000 100% - 0s 0 2 0.00000 0 15 17.00000 0.00000 100% - 0s * 13 12 8 4.0000000 1.50000 62.5% 13.8 0s Cutting planes: Explored 38 nodes (471 simplex iterations) in 0.34 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0%