Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:24:28 2012 Optimize a model with 144 rows, 358 columns and 358 nonzeros Model has 286 quadratic constraints Presolve removed 0 rows and 2 columns Presolve time: 1.67s Presolved: 144 rows, 356 columns, 356 nonzeros Variable types: 286 continuous, 70 integer (69 binary) Root relaxation: objective 0.000000e+00, 34 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 70.0000000 - - - 1s 0 0 0.00000 0 4 70.00000 0.00000 100% - 1s 0 0 0.00000 0 64 70.00000 0.00000 100% - 1s 0 0 0.00000 0 62 70.00000 0.00000 100% - 1s 0 2 0.00000 0 62 70.00000 0.00000 100% - 1s H 45 45 33.0000000 4.33333 86.9% 26.6 1s * 49 49 28 32.0000000 4.33333 86.5% 27.6 1s * 77 67 19 27.0000000 4.49123 83.4% 27.8 1s * 335 166 13 26.0000000 8.93061 65.7% 34.4 2s 3004 554 cutoff 44 26.00000 18.68750 28.1% 23.6 5s * 3109 481 45 25.0000000 18.86486 24.5% 23.3 5s Explored 4373 nodes (91866 simplex iterations) in 6.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.500000000000e+01, best bound 2.500000000000e+01, gap 0.0%