Gurobi 5.0.1 (linux64) logging started Sun Nov 18 07:43:44 2012 Optimize a model with 294 rows, 817 columns and 817 nonzeros Model has 586 quadratic constraints Presolve removed 0 rows and 23 columns Presolve time: 3.42s Presolved: 294 rows, 794 columns, 794 nonzeros Variable types: 586 continuous, 208 integer (207 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 0 148.0000000 - - - 3s 0 0 0.00000 0 169 148.00000 0.00000 100% - 3s 0 0 0.22982 0 194 148.00000 0.22982 100% - 3s 0 2 0.25203 0 194 148.00000 0.25203 100% - 3s H 54 54 26.0000000 2.19895 91.5% 29.4 3s * 56 56 36 25.0000000 2.19895 91.2% 30.9 3s 603 301 13.17647 11 492 25.00000 10.67692 57.3% 32.9 5s 1864 658 14.43646 31 492 25.00000 10.67692 57.3% 41.7 10s 3789 1376 24.79191 39 460 25.00000 14.00000 44.0% 39.2 15s 5810 1934 23.43353 41 473 25.00000 15.65657 37.4% 37.7 20s 7952 2377 cutoff 39 25.00000 16.79532 32.8% 36.2 25s 10099 2712 21.08000 36 459 25.00000 17.62791 29.5% 35.3 30s 12223 3014 cutoff 42 25.00000 18.29878 26.8% 34.8 35s 14514 3215 24.29688 36 467 25.00000 18.93220 24.3% 33.8 40s 16646 3310 20.01705 39 452 25.00000 19.29139 22.8% 33.8 45s 18961 3344 24.59829 39 467 25.00000 19.80791 20.8% 33.1 50s 21063 3311 22.94643 39 442 25.00000 20.05128 19.8% 33.3 55s 23365 3182 24.12658 37 425 25.00000 20.51064 18.0% 32.9 60s 25743 2969 22.40609 33 477 25.00000 20.98667 16.1% 32.3 65s 28009 2664 cutoff 44 25.00000 21.38148 14.5% 32.3 70s 30423 2084 cutoff 38 25.00000 22.00000 12.0% 32.0 75s 32662 1282 cutoff 49 25.00000 22.59615 9.62% 32.2 80s Explored 35110 nodes (1113933 simplex iterations) in 84.32 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.500000000009e+01, best bound 2.500000000009e+01, gap 0.0%