Gurobi 5.0.1 (linux64) logging started Sun Nov 18 00:53:12 2012 Optimize a model with 128 rows, 307 columns and 307 nonzeros Model has 254 quadratic constraints Presolve time: 1.48s Presolved: 128 rows, 307 columns, 307 nonzeros Variable types: 254 continuous, 53 integer (53 binary) Root relaxation: objective 0.000000e+00, 26 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 65.0000000 - - - 1s 0 0 0.00000 0 27 65.00000 0.00000 100% - 1s 0 0 0.00000 0 4 65.00000 0.00000 100% - 1s 0 0 0.00000 0 4 65.00000 0.00000 100% - 1s 0 2 0.00000 0 4 65.00000 0.00000 100% - 1s * 39 37 26 36.0000000 2.08333 94.2% 33.9 1s H 102 79 34.0000000 5.20000 84.7% 29.9 1s * 204 145 21 33.0000000 6.75000 79.5% 30.7 1s H 268 162 32.0000000 7.75000 75.8% 26.4 1s * 457 215 21 30.0000000 10.48148 65.1% 25.3 1s * 459 195 22 29.0000000 10.48148 63.9% 25.3 1s * 1207 329 44 27.0000000 13.28125 50.8% 28.2 2s 3412 19 26.00000 35 185 27.00000 25.43902 5.78% 20.8 5s Explored 3432 nodes (71537 simplex iterations) in 5.07 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.700000000000e+01, best bound 2.700000000000e+01, gap 0.0%