Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:10:21 2012 Optimize a model with 46 rows, 132 columns and 132 nonzeros Model has 90 quadratic constraints Presolve removed 0 rows and 4 columns Presolve time: 0.52s Presolved: 46 rows, 128 columns, 128 nonzeros Variable types: 90 continuous, 38 integer (37 binary) Root relaxation: objective 0.000000e+00, 19 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 23.0000000 - - - 0s 0 0 0.00000 0 21 23.00000 0.00000 100% - 0s 0 0 0.00000 0 32 23.00000 0.00000 100% - 0s 0 0 0.00000 0 32 23.00000 0.00000 100% - 0s 0 2 0.00000 0 30 23.00000 0.00000 100% - 0s * 9 9 6 6.0000000 1.89474 68.4% 35.0 0s * 37 12 14 5.0000000 2.70968 45.8% 12.5 0s * 52 11 4 4.0000000 2.92857 26.8% 11.5 0s Cutting planes: Gomory: 2 Explored 62 nodes (1002 simplex iterations) in 0.56 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0%