Gurobi 5.0.1 (linux64) logging started Sun Nov 18 08:07:10 2012 Optimize a model with 267 rows, 766 columns and 766 nonzeros Model has 532 quadratic constraints Presolve removed 0 rows and 17 columns Presolve time: 3.11s Presolved: 267 rows, 749 columns, 749 nonzeros Variable types: 532 continuous, 217 integer (216 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 - - - 3s 0 0 0.00000 0 3 119.00000 0.00000 100% - 3s 0 0 0.00000 0 3 119.00000 0.00000 100% - 3s 0 0 0.00000 0 166 119.00000 0.00000 100% - 3s 0 2 0.00000 0 166 119.00000 0.00000 100% - 3s H 27 27 83.0000000 2.07692 97.5% 45.2 3s H 42 42 23.0000000 2.07692 91.0% 34.5 3s * 45 43 29 21.0000000 2.07692 90.1% 33.4 3s H 81 71 20.0000000 2.10692 89.5% 28.4 3s * 104 83 43 18.0000000 2.10692 88.3% 25.9 3s 606 225 9.02632 16 443 18.00000 9.02632 49.9% 29.1 5s 1820 343 16.06250 33 399 18.00000 9.72376 46.0% 49.8 10s * 2446 248 37 17.0000000 11.32432 33.4% 43.8 11s Explored 3195 nodes (135657 simplex iterations) in 12.73 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%