Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:42:27 2012 Optimize a model with 291 rows, 320 columns and 1045 nonzeros Presolve removed 0 rows and 33 columns Presolve time: 0.00s Presolved: 291 rows, 287 columns, 1012 nonzeros Variable types: 0 continuous, 287 integer (286 binary) Found heuristic solution: objective 47.0000000 Root relaxation: objective 0.000000e+00, 203 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 0 129 47.00000 0.00000 100% - 0s H 0 0 22.0000000 0.00000 100% - 0s 0 0 0.19588 0 131 22.00000 0.19588 99.1% - 0s H 0 0 16.0000000 0.19588 98.8% - 0s H 0 0 12.0000000 0.19588 98.4% - 0s 0 0 0.73044 0 138 12.00000 0.73044 93.9% - 0s H 0 0 9.0000000 0.73044 91.9% - 0s 0 0 0.73044 0 138 9.00000 0.73044 91.9% - 0s H 0 0 7.0000000 0.73044 89.6% - 0s 0 2 0.77336 0 138 7.00000 0.77336 89.0% - 0s H 27 13 4.0000000 1.36358 65.9% 15.4 0s * 40 7 8 3.0000000 1.40539 53.2% 15.0 0s Cutting planes: Gomory: 4 Explored 48 nodes (1366 simplex iterations) in 0.11 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%