Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:24:07 2012 Optimize a model with 140 rows, 349 columns and 349 nonzeros Model has 278 quadratic constraints Presolve removed 0 rows and 1 columns Presolve time: 1.62s Presolved: 140 rows, 348 columns, 348 nonzeros Variable types: 278 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 78.0000000 - - - 1s 0 0 0.00000 0 65 78.00000 0.00000 100% - 1s 0 0 0.41154 0 65 78.00000 0.41154 99.5% - 1s 0 2 0.46615 0 65 78.00000 0.46615 99.4% - 1s H 8 8 67.0000000 2.53731 96.2% 51.2 1s H 40 40 35.0000000 2.53731 92.8% 32.5 1s * 68 50 18 27.0000000 2.87500 89.4% 30.4 1s H 270 144 26.0000000 7.00000 73.1% 32.6 1s * 454 184 16 25.0000000 10.69767 57.2% 31.1 2s * 480 171 11 24.0000000 10.84615 54.8% 31.0 2s Cutting planes: Gomory: 1 Explored 1906 nodes (53604 simplex iterations) in 3.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.400000000000e+01, best bound 2.400000000000e+01, gap 0.0%