Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:19:49 2012 Optimize a model with 227 rows, 665 columns and 665 nonzeros Model has 452 quadratic constraints Presolve removed 0 rows and 27 columns Presolve time: 2.78s Presolved: 227 rows, 638 columns, 638 nonzeros Variable types: 452 continuous, 186 integer (185 binary) Root relaxation: objective 0.000000e+00, 79 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 117.0000000 - - - 2s 0 0 0.00000 0 15 117.00000 0.00000 100% - 2s 0 0 0.00000 0 19 117.00000 0.00000 100% - 2s 0 0 0.00000 0 3 117.00000 0.00000 100% - 2s 0 2 0.00000 0 130 117.00000 0.00000 100% - 2s H 44 44 22.0000000 1.85415 91.6% 47.8 3s * 45 44 31 21.0000000 1.85415 91.2% 49.8 3s H 81 61 19.0000000 2.24000 88.2% 33.9 3s H 152 90 17.0000000 2.32672 86.3% 27.1 3s * 660 337 43 16.0000000 5.66197 64.6% 27.7 4s H 747 337 15.0000000 5.66197 62.3% 30.9 4s 822 334 13.78947 26 517 15.00000 5.66197 62.3% 33.6 5s H 1744 337 14.0000000 8.18625 41.5% 40.1 7s 2414 384 13.80822 24 499 14.00000 9.60010 31.4% 42.4 10s 3088 378 12.55981 23 487 14.00000 10.60000 24.3% 43.1 17s 3645 335 13.08257 24 421 14.00000 11.30780 19.2% 43.7 20s Explored 4596 nodes (192706 simplex iterations) in 21.69 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%