Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:09:54 2012 Optimize a model with 45 rows, 126 columns and 126 nonzeros Model has 88 quadratic constraints Presolve removed 0 rows and 2 columns Presolve time: 0.53s Presolved: 45 rows, 124 columns, 124 nonzeros Variable types: 88 continuous, 36 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 20.0000000 - - - 0s 0 0 0.00000 0 27 20.00000 0.00000 100% - 0s 0 0 0.22677 0 27 20.00000 0.22677 98.9% - 0s 0 2 0.25541 0 27 20.00000 0.25541 98.7% - 0s * 15 13 11 6.0000000 1.68254 72.0% 13.6 0s * 24 13 7 5.0000000 1.77778 64.4% 12.1 0s Cutting planes: Gomory: 1 Explored 81 nodes (1103 simplex iterations) in 0.58 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.000000000000e+00, best bound 5.000000000000e+00, gap 0.0%