Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:37:58 2012 Optimize a model with 30 rows, 81 columns and 81 nonzeros Model has 58 quadratic constraints Presolve removed 0 rows and 2 columns Presolve time: 0.34s Presolved: 30 rows, 79 columns, 79 nonzeros Variable types: 58 continuous, 21 integer (20 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 13.0000000 - - - 0s 0 0 0.00000 0 13 13.00000 0.00000 100% - 0s 0 0 0.09804 0 17 13.00000 0.09804 99.2% - 0s 0 2 0.33333 0 17 13.00000 0.33333 97.4% - 0s * 7 7 5 4.0000000 1.11429 72.1% 10.3 0s * 18 2 3 3.0000000 1.61111 46.3% 6.4 0s Cutting planes: Gomory: 2 Explored 21 nodes (274 simplex iterations) in 0.35 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%