Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:21:17 2012 Optimize a model with 195 rows, 164 columns and 649 nonzeros Presolve removed 0 rows and 2 columns Presolve time: 0.00s Presolved: 195 rows, 162 columns, 647 nonzeros Variable types: 0 continuous, 162 integer (161 binary) Found heuristic solution: objective 42.0000000 Root relaxation: objective 0.000000e+00, 124 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 64 42.00000 0.00000 100% - 0s H 0 0 38.0000000 0.00000 100% - 0s H 0 0 37.0000000 0.00000 100% - 0s H 0 0 36.0000000 0.00000 100% - 0s 0 0 0.50108 0 65 36.00000 0.50108 98.6% - 0s H 0 0 35.0000000 0.50108 98.6% - 0s 0 0 1.00000 0 67 35.00000 1.00000 97.1% - 0s H 0 0 26.0000000 1.00000 96.2% - 0s 0 0 1.01297 0 69 26.00000 1.01297 96.1% - 0s H 0 0 22.0000000 1.01297 95.4% - 0s 0 0 1.01327 0 70 22.00000 1.01327 95.4% - 0s 0 0 1.01327 0 70 22.00000 1.01327 95.4% - 0s H 0 0 21.0000000 1.01327 95.2% - 0s H 0 0 17.0000000 1.01327 94.0% - 0s H 0 0 16.0000000 1.01327 93.7% - 0s 0 2 1.01995 0 70 16.00000 1.01995 93.6% - 0s * 21 21 14 15.0000000 2.76786 81.5% 24.9 0s * 25 14 18 14.0000000 2.76786 80.2% 21.9 0s * 43 15 8 13.0000000 4.02532 69.0% 22.6 0s * 58 17 9 12.0000000 4.80153 60.0% 22.6 0s Cutting planes: Gomory: 3 Zero half: 4 Explored 126 nodes (2941 simplex iterations) in 0.17 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.200000000000e+01, best bound 1.200000000000e+01, gap 0.0%