Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:58:46 2012 Optimize a model with 417 rows, 402 columns and 1442 nonzeros Presolve removed 0 rows and 24 columns Presolve time: 0.00s Presolved: 417 rows, 378 columns, 1418 nonzeros Variable types: 0 continuous, 378 integer (377 binary) Found heuristic solution: objective 77.0000000 Root relaxation: objective 0.000000e+00, 213 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 0 160 77.00000 0.00000 100% - 0s H 0 0 61.0000000 0.00000 100% - 0s H 0 0 57.0000000 0.00000 100% - 0s 0 0 0.34031 0 163 57.00000 0.34031 99.4% - 0s H 0 0 44.0000000 0.34031 99.2% - 0s 0 0 0.88594 0 167 44.00000 0.88594 98.0% - 0s H 0 0 32.0000000 0.88594 97.2% - 0s 0 0 0.88627 0 169 32.00000 0.88627 97.2% - 0s 0 0 0.88627 0 169 32.00000 0.88627 97.2% - 0s 0 2 0.91090 0 169 32.00000 0.91090 97.2% - 0s * 50 42 26 16.0000000 1.09649 93.1% 26.4 0s * 78 53 18 15.0000000 1.09677 92.7% 27.6 0s * 186 112 16 14.0000000 2.43750 82.6% 27.5 0s * 297 95 14 13.0000000 4.93333 62.1% 27.4 0s Cutting planes: Gomory: 4 Zero half: 2 Explored 829 nodes (21446 simplex iterations) in 0.84 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.300000000000e+01, best bound 1.300000000000e+01, gap 0.0%