Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:40:38 2012 Optimize a model with 185 rows, 133 columns and 593 nonzeros Presolve time: 0.00s Presolved: 185 rows, 133 columns, 593 nonzeros Variable types: 0 continuous, 133 integer (133 binary) Found heuristic solution: objective 39.0000000 Root relaxation: objective 0.000000e+00, 71 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 41 39.00000 0.00000 100% - 0s H 0 0 35.0000000 0.00000 100% - 0s H 0 0 29.0000000 0.00000 100% - 0s 0 0 0.44071 0 43 29.00000 0.44071 98.5% - 0s 0 0 1.09473 0 44 29.00000 1.09473 96.2% - 0s 0 0 1.37346 0 48 29.00000 1.37346 95.3% - 0s 0 0 1.39524 0 47 29.00000 1.39524 95.2% - 0s H 0 0 27.0000000 1.39524 94.8% - 0s 0 0 1.40413 0 50 27.00000 1.40413 94.8% - 0s H 0 0 25.0000000 1.40413 94.4% - 0s 0 2 1.40953 0 50 25.00000 1.40953 94.4% - 0s * 52 37 20 24.0000000 3.68214 84.7% 24.2 0s * 122 79 17 23.0000000 9.06853 60.6% 22.8 0s * 130 41 8 18.0000000 9.08141 49.5% 23.2 0s Cutting planes: Gomory: 4 Mod-K: 5 Explored 293 nodes (5917 simplex iterations) in 0.21 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.800000000000e+01, best bound 1.800000000000e+01, gap 0.0%