Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:59:26 2012 Optimize a model with 3687 rows, 122 columns and 7374 nonzeros Presolve removed 2576 rows and 0 columns Presolve time: 0.12s Presolved: 1111 rows, 122 columns, 7544 nonzeros Variable types: 0 continuous, 122 integer (122 binary) Found heuristic solution: objective 8.0000000 Root relaxation: objective 1.673450e+01, 497 iterations, 0.03 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 16.73450 0 119 8.00000 16.73450 109% - 0s H 0 0 9.0000000 16.73450 85.9% - 0s 0 0 16.17277 0 121 9.00000 16.17277 79.7% - 0s 0 0 16.12330 0 121 9.00000 16.12330 79.1% - 0s H 0 0 10.0000000 16.12330 61.2% - 0s 0 0 16.05100 0 122 10.00000 16.05100 60.5% - 0s 0 0 16.03411 0 122 10.00000 16.03411 60.3% - 0s 0 0 16.02787 0 122 10.00000 16.02787 60.3% - 1s 0 0 16.02367 0 122 10.00000 16.02367 60.2% - 1s 0 0 16.02285 0 122 10.00000 16.02285 60.2% - 1s 0 0 16.02185 0 122 10.00000 16.02185 60.2% - 1s 0 0 16.02174 0 122 10.00000 16.02174 60.2% - 1s 0 2 16.02011 0 122 10.00000 16.02011 60.2% - 2s Cutting planes: Clique: 102 Explored 318 nodes (25426 simplex iterations) in 3.79 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.000000000000e+01, best bound 1.000000000000e+01, gap 0.0%