Gurobi 5.0.1 (linux64) logging started Wed Dec 19 14:01:18 2012 Optimize a model with 902 rows, 840 columns and 3620 nonzeros Presolve removed 162 rows and 46 columns Presolve time: 0.02s Presolved: 740 rows, 794 columns, 3338 nonzeros Variable types: 377 continuous, 417 integer (417 binary) Root relaxation: objective 1.769167e+02, 730 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 176.91673 0 36 - 176.91673 - - 0s 0 0 187.19881 0 38 - 187.19881 - - 0s 0 0 192.51284 0 33 - 192.51284 - - 0s 0 0 194.39575 0 25 - 194.39575 - - 0s 0 0 194.78225 0 22 - 194.78225 - - 0s 0 0 195.23387 0 31 - 195.23387 - - 0s 0 0 196.12929 0 40 - 196.12929 - - 0s 0 0 197.42209 0 37 - 197.42209 - - 0s H 0 0 252.0000000 197.42209 21.7% - 0s 0 0 197.99534 0 35 252.00000 197.99534 21.4% - 0s 0 0 198.99418 0 38 252.00000 198.99418 21.0% - 0s 0 0 199.06752 0 36 252.00000 199.06752 21.0% - 0s H 0 0 246.0000000 199.06752 19.1% - 0s 0 0 199.09040 0 32 246.00000 199.09040 19.1% - 0s 0 0 199.09332 0 37 246.00000 199.09332 19.1% - 0s 0 0 199.09332 0 30 246.00000 199.09332 19.1% - 0s 0 0 199.09332 0 28 246.00000 199.09332 19.1% - 0s 0 0 199.09332 0 31 246.00000 199.09332 19.1% - 0s 0 0 199.09332 0 23 246.00000 199.09332 19.1% - 0s 0 0 199.09332 0 26 246.00000 199.09332 19.1% - 0s 0 0 199.09332 0 25 246.00000 199.09332 19.1% - 0s 0 0 199.09332 0 36 246.00000 199.09332 19.1% - 0s 0 0 199.09332 0 23 246.00000 199.09332 19.1% - 0s 0 0 199.09332 0 40 246.00000 199.09332 19.1% - 0s 0 0 199.20685 0 41 246.00000 199.20685 19.0% - 0s 0 0 199.22650 0 29 246.00000 199.22650 19.0% - 0s 0 0 199.22775 0 34 246.00000 199.22775 19.0% - 0s 0 0 199.22775 0 30 246.00000 199.22775 19.0% - 0s 0 2 199.44210 0 30 246.00000 199.44210 18.9% - 0s * 15 4 10 244.0000000 221.42684 9.25% 61.2 0s Cutting planes: Gomory: 2 Cover: 13 Implied bound: 2 Clique: 1 Flow cover: 26 GUB cover: 5 Explored 41 nodes (4905 simplex iterations) in 0.54 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.440000000000e+02, best bound 2.440000000000e+02, gap 0.0%