Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:10:24 2012 Optimize a model with 103 rows, 94 columns and 349 nonzeros Presolve removed 0 rows and 4 columns Presolve time: 0.00s Presolved: 103 rows, 90 columns, 345 nonzeros Variable types: 0 continuous, 90 integer (89 binary) Found heuristic solution: objective 21.0000000 Root relaxation: objective 0.000000e+00, 50 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 38 21.00000 0.00000 100% - 0s H 0 0 20.0000000 0.00000 100% - 0s H 0 0 19.0000000 0.00000 100% - 0s H 0 0 14.0000000 0.00000 100% - 0s H 0 0 12.0000000 0.00000 100% - 0s 0 0 0.47469 0 40 12.00000 0.47469 96.0% - 0s H 0 0 11.0000000 0.47469 95.7% - 0s 0 0 0.97810 0 42 11.00000 0.97810 91.1% - 0s 0 0 0.98110 0 42 11.00000 0.98110 91.1% - 0s 0 0 0.98110 0 42 11.00000 0.98110 91.1% - 0s H 0 0 10.0000000 0.98110 90.2% - 0s 0 2 0.98976 0 42 10.00000 0.98976 90.1% - 0s * 15 7 13 7.0000000 3.60000 48.6% 13.4 0s * 26 6 8 6.0000000 3.66667 38.9% 10.7 0s * 32 1 4 5.0000000 5.00000 0.0% 9.5 0s Cutting planes: Gomory: 3 Zero half: 1 Explored 33 nodes (503 simplex iterations) in 0.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.000000000000e+00, best bound 5.000000000000e+00, gap 0.0%