Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:18:56 2012 Optimize a model with 95 rows, 248 columns and 248 nonzeros Model has 188 quadratic constraints Presolve removed 0 rows and 1 columns Presolve time: 1.10s Presolved: 95 rows, 247 columns, 247 nonzeros Variable types: 188 continuous, 59 integer (58 binary) Root relaxation: objective 0.000000e+00, 29 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 42.0000000 - - - 1s 0 0 0.00000 0 6 42.00000 0.00000 100% - 1s 0 0 0.00000 0 17 42.00000 0.00000 100% - 1s 0 0 0.00000 0 17 42.00000 0.00000 100% - 1s 0 2 0.00000 0 17 42.00000 0.00000 100% - 1s * 13 13 9 18.0000000 2.58824 85.6% 39.3 1s * 33 23 11 17.0000000 2.68293 84.2% 27.7 1s * 45 27 17 16.0000000 2.68293 83.2% 23.1 1s * 67 35 16 15.0000000 2.69444 82.0% 19.2 1s H 80 38 14.0000000 2.80556 80.0% 18.7 1s * 81 28 10 13.0000000 2.80556 78.4% 18.9 1s * 87 22 7 12.0000000 2.98291 75.1% 19.2 1s Cutting planes: Gomory: 1 Explored 198 nodes (4429 simplex iterations) in 1.22 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.200000000000e+01, best bound 1.200000000000e+01, gap 0.0%