Gurobi 5.0.1 (linux64) logging started Tue Dec 25 15:27:49 2012 Optimize a model with 902 rows, 840 columns and 3520 nonzeros Presolve removed 251 rows and 40 columns Presolve time: 0.02s Presolved: 651 rows, 800 columns, 3176 nonzeros Variable types: 380 continuous, 420 integer (420 binary) Root relaxation: objective 1.280857e+02, 794 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 128.08574 0 46 - 128.08574 - - 0s 0 0 131.43982 0 49 - 131.43982 - - 0s 0 0 132.80275 0 41 - 132.80275 - - 0s 0 0 133.26204 0 40 - 133.26204 - - 0s 0 0 133.48696 0 45 - 133.48696 - - 0s 0 0 133.50554 0 50 - 133.50554 - - 0s 0 0 133.50554 0 49 - 133.50554 - - 0s 0 2 133.54341 0 45 - 133.54341 - - 0s * 292 207 51 254.0000000 142.14596 44.0% 19.9 0s H 518 323 238.0000000 143.62972 39.7% 22.9 1s H 564 353 235.0000000 144.15416 38.7% 22.9 1s H 787 454 229.0000000 145.94164 36.3% 26.2 1s H 814 438 228.0000000 145.94164 36.0% 27.1 1s H 868 411 226.0000000 145.94164 35.4% 27.8 2s 3180 1417 cutoff 31 226.00000 161.52453 28.5% 33.5 5s H 5432 2064 210.0000000 168.58362 19.7% 34.3 7s 7520 2733 191.66769 23 17 210.00000 173.62892 17.3% 35.0 10s * 9394 2982 39 207.0000000 177.77307 14.1% 35.6 12s H10759 3047 206.0000000 180.45776 12.4% 35.4 13s *10783 2892 38 204.0000000 180.45776 11.5% 35.4 13s 12693 2878 199.51452 31 16 204.00000 183.98849 9.81% 34.8 15s H13820 2765 203.0000000 185.56052 8.59% 34.5 15s 19109 1695 196.96664 32 18 203.00000 193.37482 4.74% 32.9 20s Explored 21551 nodes (682538 simplex iterations) in 21.56 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.030000000000e+02, best bound 2.030000000000e+02, gap 0.0%