Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:29:40 2012 Optimize a model with 243 rows, 701 columns and 701 nonzeros Model has 484 quadratic constraints Presolve removed 0 rows and 18 columns Presolve time: 2.83s Presolved: 243 rows, 683 columns, 683 nonzeros Variable types: 484 continuous, 199 integer (198 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 0 116.0000000 - - - 2s 0 0 0.00000 0 12 116.00000 0.00000 100% - 2s 0 0 0.00000 0 2 116.00000 0.00000 100% - 2s 0 0 0.00000 0 122 116.00000 0.00000 100% - 2s 0 2 0.00000 0 122 116.00000 0.00000 100% - 2s H 27 27 75.0000000 4.05814 94.6% 39.2 3s H 37 37 26.0000000 4.05814 84.4% 32.2 3s * 48 48 33 23.0000000 4.05814 82.4% 33.1 3s * 50 44 33 22.0000000 4.05814 81.6% 33.3 3s * 82 63 26 21.0000000 4.32867 79.4% 25.9 3s H 108 70 18.0000000 4.50000 75.0% 23.8 3s * 592 224 35 17.0000000 8.90526 47.6% 16.8 3s 803 284 9.30331 14 420 17.00000 9.30331 45.3% 25.9 5s H 1455 260 16.0000000 9.30331 41.9% 26.3 6s H 1485 188 15.0000000 9.30331 38.0% 26.7 6s Explored 2108 nodes (61021 simplex iterations) in 7.45 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.500000000000e+01, best bound 1.500000000000e+01, gap 0.0%