Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:10:50 2012 Optimize a model with 50 rows, 144 columns and 144 nonzeros Model has 98 quadratic constraints Presolve removed 0 rows and 6 columns Presolve time: 0.57s Presolved: 50 rows, 138 columns, 138 nonzeros Variable types: 98 continuous, 40 integer (39 binary) Root relaxation: objective 0.000000e+00, 21 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 30.0000000 - - - 0s 0 0 0.00000 0 7 30.00000 0.00000 100% - 0s 0 0 0.00000 0 21 30.00000 0.00000 100% - 0s 0 0 0.00000 0 33 30.00000 0.00000 100% - 0s H 0 0 12.0000000 0.00000 100% - 0s 0 2 0.00000 0 33 12.00000 0.00000 100% - 0s * 8 8 7 3.0000000 1.66667 44.4% 23.9 0s Cutting planes: Explored 29 nodes (700 simplex iterations) in 0.60 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%