Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:55:54 2012 Optimize a model with 209 rows, 605 columns and 605 nonzeros Model has 416 quadratic constraints Presolve removed 0 rows and 21 columns Presolve time: 2.41s Presolved: 209 rows, 584 columns, 584 nonzeros Variable types: 416 continuous, 168 integer (167 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 95.0000000 - - - 2s 0 0 0.00000 0 20 95.00000 0.00000 100% - 2s 0 0 0.00000 0 6 95.00000 0.00000 100% - 2s 0 0 0.00000 0 90 95.00000 0.00000 100% - 2s 0 2 0.00000 0 87 95.00000 0.00000 100% - 2s H 54 54 22.0000000 1.10417 95.0% 23.3 2s * 67 60 52 21.0000000 1.10417 94.7% 20.0 2s * 167 138 29 20.0000000 2.32313 88.4% 19.2 2s * 290 230 30 19.0000000 2.50000 86.8% 19.4 2s H 487 291 18.0000000 3.24381 82.0% 17.7 2s * 489 265 36 17.0000000 3.24381 80.9% 17.8 2s * 711 340 27 16.0000000 4.07813 74.5% 24.7 4s 927 354 7.13514 13 342 16.00000 6.11189 61.8% 29.4 5s H 1542 293 15.0000000 8.75472 41.6% 34.2 6s 2377 359 12.72464 19 321 15.00000 10.36000 30.9% 37.3 11s 2715 352 cutoff 25 15.00000 10.94737 27.0% 37.7 15s * 3057 281 21 14.0000000 11.38462 18.7% 38.3 16s Explored 3595 nodes (139169 simplex iterations) in 17.25 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.400000000000e+01, best bound 1.400000000000e+01, gap 0.0%