Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:09:31 2012 Optimize a model with 26 rows, 83 columns and 83 nonzeros Model has 50 quadratic constraints Presolve removed 0 rows and 7 columns Presolve time: 0.29s Presolved: 26 rows, 76 columns, 76 nonzeros Variable types: 50 continuous, 26 integer (25 binary) Root relaxation: objective 0.000000e+00, 13 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 10.0000000 - - - 0s 0 0 0.00000 0 9 10.00000 0.00000 100% - 0s 0 0 0.00000 0 14 10.00000 0.00000 100% - 0s 0 0 0.00000 0 18 10.00000 0.00000 100% - 0s 0 2 0.00000 0 18 10.00000 0.00000 100% - 0s * 4 4 3 2.0000000 0.78930 60.5% 20.0 0s * 19 2 4 1.0000000 1.00000 0.0% 8.2 0s Cutting planes: Explored 20 nodes (473 simplex iterations) in 0.31 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.000000000000e+00, best bound 1.000000000000e+00, gap 0.0%