Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:36:52 2012 Optimize a model with 321 rows, 328 columns and 1128 nonzeros Presolve removed 0 rows and 25 columns Presolve time: 0.00s Presolved: 321 rows, 303 columns, 1103 nonzeros Variable types: 0 continuous, 303 integer (302 binary) Found heuristic solution: objective 48.0000000 Root relaxation: objective 0.000000e+00, 194 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 0 121 48.00000 0.00000 100% - 0s H 0 0 43.0000000 0.00000 100% - 0s H 0 0 40.0000000 0.00000 100% - 0s 0 0 0.20455 0 122 40.00000 0.20455 99.5% - 0s H 0 0 28.0000000 0.20455 99.3% - 0s H 0 0 24.0000000 0.20455 99.1% - 0s 0 0 1.00000 0 124 24.00000 1.00000 95.8% - 0s H 0 0 22.0000000 1.00000 95.5% - 0s 0 0 1.00000 0 123 22.00000 1.00000 95.5% - 0s 0 0 1.00000 0 126 22.00000 1.00000 95.5% - 0s 0 0 1.00000 0 121 22.00000 1.00000 95.5% - 0s H 0 0 19.0000000 1.00000 94.7% - 0s H 0 0 12.0000000 1.00000 91.7% - 0s 0 2 1.00000 0 121 12.00000 1.00000 91.7% - 0s * 16 11 10 7.0000000 1.78570 74.5% 54.4 0s Cutting planes: Gomory: 3 Explored 84 nodes (3528 simplex iterations) in 0.15 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0%