Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:20:20 2012 Optimize a model with 115 rows, 292 columns and 292 nonzeros Model has 228 quadratic constraints Presolve removed 0 rows and 2 columns Presolve time: 1.33s Presolved: 115 rows, 290 columns, 290 nonzeros Variable types: 228 continuous, 62 integer (61 binary) Root relaxation: objective 0.000000e+00, 30 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 53.0000000 - - - 1s 0 0 0.00000 0 37 53.00000 0.00000 100% - 1s 0 0 0.08929 0 56 53.00000 0.08929 100% - 1s 0 2 0.10341 0 56 53.00000 0.10341 100% - 1s H 8 8 43.0000000 3.21626 92.5% 36.5 1s H 27 27 42.0000000 3.21626 92.3% 27.7 1s * 30 30 18 22.0000000 3.21626 85.4% 26.0 1s * 86 36 10 17.0000000 3.63068 78.6% 24.5 1s Cutting planes: Gomory: 1 Explored 630 nodes (17988 simplex iterations) in 1.78 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.700000000000e+01, best bound 1.700000000000e+01, gap 0.0%