Gurobi 5.0.1 (linux64) logging started Sun Nov 18 01:40:13 2012 Optimize a model with 180 rows, 419 columns and 419 nonzeros Model has 358 quadratic constraints Presolve time: 2.07s Presolved: 180 rows, 419 columns, 419 nonzeros Variable types: 358 continuous, 61 integer (61 binary) Root relaxation: objective 0.000000e+00, 30 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 87.0000000 - - - 2s 0 0 0.00000 0 36 87.00000 0.00000 100% - 2s 0 0 0.11858 0 57 87.00000 0.11858 100% - 2s 0 2 0.13158 0 57 87.00000 0.13158 100% - 2s H 54 54 56.0000000 4.50027 92.0% 31.3 2s * 64 60 38 52.0000000 4.50027 91.3% 28.9 2s H 106 92 50.0000000 4.55753 90.9% 29.7 2s * 108 93 29 49.0000000 4.55753 90.7% 29.5 2s * 275 221 25 48.0000000 4.68439 90.2% 38.3 2s * 282 215 28 47.0000000 4.68439 90.0% 37.5 2s H 331 248 46.0000000 9.77564 78.7% 40.3 2s 1224 606 39.88889 52 249 46.00000 15.07143 67.2% 44.3 5s 5881 2330 cutoff 53 46.00000 28.75901 37.5% 24.8 10s 10948 3852 33.13776 35 235 46.00000 31.91667 30.6% 21.6 15s *12925 4109 54 45.0000000 32.64429 27.5% 21.0 16s H13036 3874 44.0000000 32.68000 25.7% 21.0 17s 13604 3918 37.87950 45 227 44.00000 33.00000 25.0% 20.9 20s 16936 4121 cutoff 39 44.00000 34.50000 21.6% 20.3 25s *19592 3669 42 43.0000000 35.54054 17.3% 19.9 28s 20489 3545 41.07630 40 231 43.00000 36.00000 16.3% 19.8 30s 25251 2471 41.80233 45 233 43.00000 38.19444 11.2% 19.4 35s Explored 29134 nodes (544573 simplex iterations) in 38.64 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.300000000000e+01, best bound 4.300000000000e+01, gap 0.0%