Gurobi 5.0.1 (linux64) logging started Sun Nov 18 08:22:07 2012 Optimize a model with 278 rows, 790 columns and 790 nonzeros Model has 554 quadratic constraints Presolve removed 0 rows and 20 columns Presolve time: 3.23s Presolved: 278 rows, 770 columns, 770 nonzeros Variable types: 554 continuous, 216 integer (215 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 0 131.0000000 - - - 3s 0 0 0.00000 0 13 131.00000 0.00000 100% - 3s 0 0 0.00000 0 19 131.00000 0.00000 100% - 3s 0 0 0.00000 0 145 131.00000 0.00000 100% - 3s 0 2 0.00000 0 145 131.00000 0.00000 100% - 3s H 41 41 29.0000000 2.54545 91.2% 40.9 3s * 48 46 36 28.0000000 2.54545 90.9% 37.9 3s H 75 51 21.0000000 3.00000 85.7% 34.0 3s * 75 45 19 19.0000000 3.00000 84.2% 34.1 3s 606 246 9.38462 13 467 19.00000 9.38462 50.6% 26.8 5s * 2054 339 42 17.0000000 11.69845 31.2% 34.3 9s 2425 304 13.12500 36 459 17.00000 12.67098 25.5% 35.6 10s Explored 3249 nodes (117594 simplex iterations) in 11.86 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%