Gurobi 5.0.1 (linux64) logging started Sun Nov 18 04:03:33 2012 Optimize a model with 198 rows, 478 columns and 478 nonzeros Model has 394 quadratic constraints Presolve time: 2.30s Presolved: 198 rows, 478 columns, 478 nonzeros Variable types: 394 continuous, 84 integer (84 binary) Root relaxation: objective 0.000000e+00, 42 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 103.0000000 - - - 2s 0 0 0.00000 0 32 103.00000 0.00000 100% - 2s 0 0 0.00000 0 35 103.00000 0.00000 100% - 2s 0 0 0.00000 0 35 103.00000 0.00000 100% - 2s 0 2 0.00000 0 35 103.00000 0.00000 100% - 2s H 50 50 51.0000000 4.11111 91.9% 37.9 2s H 131 113 50.0000000 4.97744 90.0% 33.1 2s H 206 164 49.0000000 5.00000 89.8% 33.3 2s H 251 188 47.0000000 5.17647 89.0% 33.7 2s H 497 304 46.0000000 10.48684 77.2% 33.2 2s * 695 385 30 43.0000000 12.43092 71.1% 39.3 4s * 896 448 42 40.0000000 12.43092 68.9% 43.3 4s 995 495 36.50000 41 269 40.00000 12.43092 68.9% 42.0 5s H 1296 545 39.0000000 15.52941 60.2% 38.3 5s * 1906 602 47 38.0000000 18.50000 51.3% 33.2 6s H 2171 698 37.0000000 19.15068 48.2% 32.0 6s 3264 1109 33.94340 39 234 37.00000 22.10000 40.3% 27.9 10s 5341 1693 32.19048 36 287 37.00000 24.63636 33.4% 24.9 15s 7499 2066 33.64706 36 274 37.00000 26.60000 28.1% 23.3 20s 10541 2290 cutoff 38 37.00000 28.00000 24.3% 22.0 25s 13927 2365 cutoff 36 37.00000 29.09091 21.4% 21.1 30s 17495 2161 34.00000 34 287 37.00000 30.50000 17.6% 20.6 35s 20475 1546 33.28125 34 269 37.00000 32.00000 13.5% 20.4 40s Explored 23512 nodes (478028 simplex iterations) in 43.95 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.700000000000e+01, best bound 3.700000000000e+01, gap 0.0%