Gurobi 5.0.1 (linux64) logging started Sat Nov 17 20:39:15 2012 Optimize a model with 199 rows, 425 columns and 425 nonzeros Model has 396 quadratic constraints Presolve time: 2.31s Presolved: 199 rows, 425 columns, 425 nonzeros Variable types: 396 continuous, 29 integer (29 binary) Root relaxation: objective 0.000000e+00, 14 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 102.0000000 - - - 2s 0 0 0.00000 0 28 102.00000 0.00000 100% - 2s 0 0 0.74713 0 29 102.00000 0.74713 99.3% - 2s 0 2 0.83333 0 29 102.00000 0.83333 99.2% - 2s * 41 41 22 92.0000000 6.59693 92.8% 42.6 2s H 80 62 88.0000000 6.62011 92.5% 40.9 2s * 82 64 17 86.0000000 6.62011 92.3% 41.0 2s * 85 61 19 82.0000000 6.62011 91.9% 39.7 2s 1060 557 56.13333 52 250 82.00000 30.33960 63.0% 51.5 5s * 1165 548 39 79.0000000 30.33960 61.6% 49.3 5s * 1880 614 42 76.0000000 32.83333 56.8% 38.8 5s 3707 1238 69.52941 35 224 76.00000 41.63636 45.2% 32.0 10s 7226 1924 73.62500 38 190 76.00000 53.00000 30.3% 27.8 15s 10079 2146 57.50000 37 229 76.00000 57.23077 24.7% 26.5 20s *12966 2164 47 75.0000000 60.11111 19.9% 25.6 23s 14742 2073 cutoff 55 75.00000 62.00000 17.3% 25.1 25s 19658 1139 74.00000 40 204 75.00000 67.00000 10.7% 24.2 30s Explored 21666 nodes (510476 simplex iterations) in 31.53 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.500000000000e+01, best bound 7.500000000000e+01, gap 0.0%