Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:34:11 2012 Optimize a model with 164 rows, 403 columns and 403 nonzeros Model has 326 quadratic constraints Presolve time: 1.90s Presolved: 164 rows, 403 columns, 403 nonzeros Variable types: 326 continuous, 77 integer (77 binary) Root relaxation: objective 0.000000e+00, 38 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 78.0000000 - - - 1s 0 0 0.00000 0 27 78.00000 0.00000 100% - 1s 0 0 0.00000 0 38 78.00000 0.00000 100% - 1s 0 0 0.00000 0 38 78.00000 0.00000 100% - 1s 0 2 0.00000 0 38 78.00000 0.00000 100% - 1s H 49 49 44.0000000 2.31884 94.7% 36.9 2s * 54 50 33 43.0000000 2.31884 94.6% 35.5 2s * 106 94 34 42.0000000 2.54839 93.9% 29.2 2s H 132 88 34.0000000 4.87879 85.7% 31.0 2s H 138 90 32.0000000 4.87879 84.8% 30.3 2s * 291 186 15 31.0000000 7.37195 76.2% 31.4 2s 2194 775 23.00000 31 246 31.00000 17.00000 45.2% 24.7 5s 7821 2362 27.36066 39 239 31.00000 22.68966 26.8% 17.9 10s 13712 2909 28.00000 37 200 31.00000 24.82353 19.9% 16.7 15s *17045 2402 44 30.0000000 25.77805 14.1% 16.3 17s 17558 2220 28.06557 32 241 30.00000 26.06667 13.1% 16.4 20s 18670 1588 28.00000 35 243 30.00000 27.00000 10.0% 16.5 25s Explored 20510 nodes (331044 simplex iterations) in 26.84 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+01, best bound 3.000000000000e+01, gap 0.0%