Gurobi 5.0.1 (linux64) logging started Mon Nov 19 07:32:03 2012 Optimize a model with 5145 rows, 143 columns and 10290 nonzeros Presolve removed 3732 rows and 0 columns Presolve time: 0.20s Presolved: 1413 rows, 143 columns, 10275 nonzeros Variable types: 0 continuous, 143 integer (143 binary) Found heuristic solution: objective 7.0000000 Root relaxation: objective 1.802150e+01, 704 iterations, 0.04 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 18.02150 0 138 7.00000 18.02150 157% - 0s H 0 0 8.0000000 18.02150 125% - 0s 0 0 17.53311 0 143 8.00000 17.53311 119% - 0s 0 0 17.49921 0 140 8.00000 17.49921 119% - 0s H 0 0 9.0000000 17.49921 94.4% - 0s 0 0 17.47404 0 142 9.00000 17.47404 94.2% - 0s 0 0 17.36081 0 143 9.00000 17.36081 92.9% - 1s 0 0 17.32483 0 142 9.00000 17.32483 92.5% - 1s 0 0 17.26478 0 142 9.00000 17.26478 91.8% - 1s 0 0 17.25159 0 142 9.00000 17.25159 91.7% - 1s 0 0 17.24657 0 142 9.00000 17.24657 91.6% - 1s 0 0 17.24189 0 143 9.00000 17.24189 91.6% - 2s 0 0 17.23527 0 143 9.00000 17.23527 91.5% - 2s 0 0 17.23406 0 143 9.00000 17.23406 91.5% - 2s 0 0 17.23371 0 143 9.00000 17.23371 91.5% - 2s 0 0 17.23369 0 143 9.00000 17.23369 91.5% - 2s 0 2 17.23297 0 143 9.00000 17.23297 91.5% - 3s H 108 85 10.0000000 16.98643 69.9% 82.6 4s 211 142 12.48056 9 61 10.00000 16.39832 64.0% 84.6 5s 759 180 cutoff 18 10.00000 12.77795 27.8% 75.1 10s Cutting planes: Clique: 129 Explored 954 nodes (68381 simplex iterations) in 11.28 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%