Gurobi 5.0.1 (linux64) logging started Sun Nov 18 01:46:27 2012 Optimize a model with 192 rows, 443 columns and 443 nonzeros Model has 382 quadratic constraints Presolve time: 2.23s Presolved: 192 rows, 443 columns, 443 nonzeros Variable types: 382 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 99.0000000 - - - 2s 0 0 0.00000 0 2 99.00000 0.00000 100% - 2s 0 0 0.00000 0 55 99.00000 0.00000 100% - 2s 0 0 0.00000 0 31 99.00000 0.00000 100% - 2s 0 2 0.00000 0 31 99.00000 0.00000 100% - 2s H 54 54 65.0000000 2.62712 96.0% 33.4 2s * 62 61 36 59.0000000 2.62712 95.5% 30.0 2s * 66 60 39 58.0000000 2.62712 95.5% 28.4 2s H 103 86 55.0000000 4.72000 91.4% 33.4 2s H 299 248 54.0000000 6.64000 87.7% 39.4 2s 1000 631 49.50000 56 220 54.00000 13.12500 75.7% 49.2 5s * 1454 736 41 53.0000000 18.80392 64.5% 41.0 5s H 1456 695 52.0000000 18.80392 63.8% 40.9 5s H 3411 1580 51.0000000 26.00000 49.0% 29.4 8s 3656 1671 39.38000 37 261 51.00000 26.87500 47.3% 28.7 10s H 4683 2044 50.0000000 28.57143 42.9% 26.4 14s 5239 2248 38.86275 33 254 50.00000 29.21429 41.6% 25.7 15s 8150 3211 48.00000 42 249 50.00000 32.22222 35.6% 23.3 20s 10860 3963 45.29412 37 272 50.00000 34.03125 31.9% 22.1 25s 14406 4797 44.87805 39 236 50.00000 35.85185 28.3% 21.3 30s *16541 5091 43 49.0000000 36.66667 25.2% 20.8 32s 18045 5306 44.86667 34 246 49.00000 37.09091 24.3% 20.5 35s 22150 5710 46.49416 36 243 49.00000 38.23529 22.0% 19.9 40s 25894 5942 47.25000 43 238 49.00000 39.20000 20.0% 19.5 45s 28945 6018 47.68085 42 258 49.00000 39.90000 18.6% 19.1 51s 31792 5983 cutoff 36 49.00000 40.50000 17.3% 19.0 55s 36422 5718 cutoff 39 49.00000 41.46667 15.4% 18.7 60s 41135 5225 47.80000 41 225 49.00000 42.31579 13.6% 18.6 65s 45051 4550 cutoff 37 49.00000 43.07692 12.1% 18.5 70s 49815 3055 46.36170 39 249 49.00000 44.33333 9.52% 18.4 75s Explored 54863 nodes (992738 simplex iterations) in 79.68 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.900000000005e+01, best bound 4.900000000005e+01, gap 0.0%