Gurobi 5.0.1 (linux64) logging started Sat Dec 8 10:29:56 2012 Optimize a model with 3255 rows, 3240 columns and 11830 nonzeros Presolve removed 412 rows and 113 columns Presolve time: 0.02s Presolved: 2843 rows, 3127 columns, 10971 nonzeros Variable types: 2788 continuous, 339 integer (339 binary) Root relaxation: objective 1.265959e+05, 521 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 126595.874 0 15 - 126595.874 - - 0s H 0 0 129360.00000 126595.874 2.14% - 0s 0 0 126965.557 0 18 129360.000 126965.557 1.85% - 0s 0 0 126977.569 0 29 129360.000 126977.569 1.84% - 0s 0 0 127023.315 0 31 129360.000 127023.315 1.81% - 0s H 0 0 129222.00000 127023.315 1.70% - 0s 0 0 127023.315 0 31 129222.000 127023.315 1.70% - 0s H 0 0 127690.00000 127023.315 0.52% - 0s 0 2 127096.880 0 31 127690.000 127096.880 0.46% - 0s H 110 56 127590.00000 127126.616 0.36% 4.6 0s * 143 81 37 127549.00000 127126.616 0.33% 4.9 0s H 148 76 127542.00000 127128.505 0.32% 4.8 0s * 207 110 40 127477.00000 127128.505 0.27% 5.2 0s H 232 78 127321.00000 127131.089 0.15% 5.2 0s * 233 75 23 127317.00000 127131.089 0.15% 5.1 0s * 339 99 21 127289.00000 127142.405 0.12% 4.7 0s * 438 90 19 127261.00000 127154.791 0.08% 4.5 0s H 489 82 127256.00000 127178.113 0.06% 4.5 0s * 516 74 20 127251.00000 127180.552 0.06% 4.4 0s * 690 30 25 127244.00000 127226.396 0.01% 4.3 0s Cutting planes: Gomory: 3 Cover: 4 Flow cover: 5 Mod-K: 1 Explored 706 nodes (3576 simplex iterations) in 0.70 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.272440000000e+05, best bound 1.272325547467e+05, gap 0.0090%