Gurobi 5.0.1 (linux64) logging started Sun Nov 18 08:19:06 2012 Optimize a model with 585 rows, 528 columns and 1988 nonzeros Presolve removed 0 rows and 18 columns Presolve time: 0.00s Presolved: 585 rows, 510 columns, 1970 nonzeros Variable types: 0 continuous, 510 integer (509 binary) Found heuristic solution: objective 124.0000000 Root relaxation: objective 0.000000e+00, 307 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00000 0 215 124.00000 0.00000 100% - 0s H 0 0 92.0000000 0.00000 100% - 0s H 0 0 86.0000000 0.00000 100% - 0s H 0 0 79.0000000 0.00000 100% - 0s 0 0 0.50754 0 217 79.00000 0.50754 99.4% - 0s H 0 0 69.0000000 0.50754 99.3% - 0s 0 0 0.83611 0 220 69.00000 0.83611 98.8% - 0s H 0 0 66.0000000 0.83611 98.7% - 0s 0 0 0.83611 0 220 66.00000 0.83611 98.7% - 0s H 0 0 57.0000000 0.83611 98.5% - 0s H 0 0 46.0000000 0.83611 98.2% - 0s 0 2 0.87651 0 220 46.00000 0.87651 98.1% - 0s H 54 48 25.0000000 1.00000 96.0% 31.7 0s * 111 75 16 24.0000000 1.00000 95.8% 39.9 0s * 162 102 23 22.0000000 1.00000 95.5% 40.9 0s 2963 708 cutoff 26 22.00000 14.32022 34.9% 28.9 5s 6411 699 19.35593 26 213 22.00000 16.81176 23.6% 26.9 10s Explored 9172 nodes (243834 simplex iterations) in 13.59 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.200000000000e+01, best bound 2.200000000000e+01, gap 0.0%