Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:39:17 2012 Optimize a model with 56 rows, 145 columns and 145 nonzeros Model has 110 quadratic constraints Presolve time: 0.64s Presolved: 56 rows, 145 columns, 145 nonzeros Variable types: 110 continuous, 35 integer (35 binary) Root relaxation: objective 0.000000e+00, 17 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 19 30.00000 0.00000 100% - 0s 0 0 0.16022 0 32 30.00000 0.16022 99.5% - 0s 0 2 0.19010 0 32 30.00000 0.19010 99.4% - 0s * 13 13 8 9.0000000 3.22222 64.2% 18.9 0s Cutting planes: Gomory: 3 Explored 68 nodes (1570 simplex iterations) in 0.68 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.000000000000e+00, best bound 9.000000000000e+00, gap 0.0%