Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:58:20 2012 Optimize a model with 207 rows, 605 columns and 605 nonzeros Model has 412 quadratic constraints Presolve removed 0 rows and 24 columns Presolve time: 2.40s Presolved: 207 rows, 581 columns, 581 nonzeros Variable types: 412 continuous, 169 integer (168 binary) Root relaxation: objective 0.000000e+00, 73 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 96.0000000 - - - 2s 0 0 0.00000 0 3 96.00000 0.00000 100% - 2s 0 0 0.00000 0 4 96.00000 0.00000 100% - 2s 0 0 0.00000 0 82 96.00000 0.00000 100% - 2s 0 2 0.00000 0 82 96.00000 0.00000 100% - 2s H 49 49 21.0000000 0.86076 95.9% 35.7 2s * 60 60 45 20.0000000 0.86076 95.7% 33.8 2s H 92 62 16.0000000 0.91971 94.3% 30.6 2s H 159 76 13.0000000 2.03333 84.4% 24.6 2s * 321 123 16 12.0000000 4.25210 64.6% 22.0 2s * 1187 149 35 11.0000000 6.86441 37.6% 29.2 4s * 1209 89 35 10.0000000 7.00000 30.0% 29.2 4s Explored 1267 nodes (39362 simplex iterations) in 4.92 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.000000000000e+01, best bound 1.000000000000e+01, gap 0.0%