Gurobi 5.0.1 (linux64) logging started Mon Feb 4 16:17:44 2013 Optimize a model with 1159 rows, 361 columns and 3610 nonzeros Presolve removed 213 rows and 182 columns Presolve time: 0.00s Presolved: 946 rows, 179 columns, 2998 nonzeros Variable types: 10 continuous, 169 integer (169 binary) Found heuristic solution: objective 5578.0000000 Root relaxation: objective 3.643432e+03, 826 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3643.43243 0 10 5578.00000 3643.43243 34.7% - 0s H 0 0 3666.0000000 3643.43243 0.62% - 0s H 0 0 3661.0000000 3643.43243 0.48% - 0s 0 0 3644.00000 0 14 3661.00000 3644.00000 0.46% - 0s 0 0 3644.00000 0 15 3661.00000 3644.00000 0.46% - 0s 0 0 3644.00000 0 12 3661.00000 3644.00000 0.46% - 0s 0 0 3644.00000 0 15 3661.00000 3644.00000 0.46% - 0s 0 0 3644.00000 0 20 3661.00000 3644.00000 0.46% - 0s 0 0 3644.00000 0 14 3661.00000 3644.00000 0.46% - 0s H 0 0 3658.0000000 3644.00000 0.38% - 0s 0 0 3644.00000 0 16 3658.00000 3644.00000 0.38% - 0s 0 0 3644.00000 0 17 3658.00000 3644.00000 0.38% - 0s 0 0 3644.00000 0 13 3658.00000 3644.00000 0.38% - 0s 0 2 3644.00000 0 13 3658.00000 3644.00000 0.38% - 0s H 27 15 3657.0000000 3644.00000 0.36% 13.1 0s * 38 19 32 3654.0000000 3644.00000 0.27% 10.1 0s H 81 46 3652.0000000 3644.00000 0.22% 9.4 0s H 135 64 3651.0000000 3644.39964 0.18% 10.7 0s * 2934 181 34 3650.0000000 3647.00000 0.08% 5.0 0s Explored 3317 nodes (17791 simplex iterations) in 0.55 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.650000000000e+03, best bound 3.650000000000e+03, gap 0.0%