Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:38:20 2012 Optimize a model with 246 rows, 709 columns and 709 nonzeros Model has 490 quadratic constraints Presolve removed 0 rows and 23 columns Presolve time: 2.86s Presolved: 246 rows, 686 columns, 686 nonzeros Variable types: 490 continuous, 196 integer (195 binary) Root relaxation: objective 0.000000e+00, 83 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 119.0000000 - - - 2s 0 0 0.00000 0 36 119.00000 0.00000 100% - 2s 0 0 0.00000 0 109 119.00000 0.00000 100% - 2s 0 0 0.00000 0 47 119.00000 0.00000 100% - 2s 0 2 0.00000 0 47 119.00000 0.00000 100% - 2s H 24 24 24.0000000 2.10909 91.2% 50.2 3s H 54 54 19.0000000 2.10909 88.9% 32.1 3s * 55 53 48 18.0000000 2.10909 88.3% 32.2 3s H 178 64 14.0000000 5.27333 62.3% 21.6 3s 706 183 8.02000 25 442 14.00000 8.02000 42.7% 32.7 5s Explored 2478 nodes (90414 simplex iterations) in 8.52 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.399999999873e+01, best bound 1.399999999873e+01, gap 0.0%