Gurobi 5.0.1 (linux64) logging started Fri Jan 18 07:57:27 2013 Optimize a model with 1700 rows, 128000 columns and 1351050 nonzeros Presolve removed 50 rows and 2450 columns Presolve time: 3.99s Presolved: 1650 rows, 125550 columns, 1251050 nonzeros Variable types: 125050 continuous, 500 integer (500 binary) Root relaxation: objective 2.198499e+05, 3056 iterations, 0.41 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 219849.939 0 16 - 219849.939 - - 5s 0 0 219850.707 0 16 - 219850.707 - - 6s 0 0 219850.707 0 16 - 219850.707 - - 7s 0 0 219850.761 0 16 - 219850.761 - - 8s 0 0 219850.771 0 16 - 219850.771 - - 8s 0 0 219850.785 0 16 - 219850.785 - - 9s 0 0 219850.859 0 16 - 219850.859 - - 10s 0 0 219850.868 0 16 - 219850.868 - - 10s 0 0 219850.879 0 16 - 219850.879 - - 11s 0 0 219850.879 0 16 - 219850.879 - - 12s 0 0 219850.887 0 16 - 219850.887 - - 13s 0 0 219850.887 0 16 - 219850.887 - - 15s 0 2 219851.021 0 16 - 219851.021 - - 36s 43 45 220642.315 43 10 - 219881.913 - 26.6 40s 109 111 221905.793 109 6 - 219881.913 - 19.8 45s 179 172 225607.932 169 6 - 219881.913 - 14.8 50s * 229 190 214 225632.56517 219881.913 2.55% 12.3 53s 241 196 222942.842 16 7 225632.565 220220.935 2.40% 16.8 55s H 285 170 223906.09705 220220.935 1.65% 16.8 58s 385 266 223902.522 158 7 223906.097 220220.935 1.65% 13.2 60s * 414 293 187 223904.71468 220220.935 1.65% 12.3 60s 573 424 220515.898 12 5 223904.715 220226.803 1.64% 13.9 65s 601 451 223801.532 25 16 223904.715 220226.803 1.64% 15.3 75s 606 454 223812.149 69 16 223904.715 220226.803 1.64% 15.2 80s 610 457 221157.454 7 16 223904.715 220226.803 1.64% 15.1 85s 616 463 220950.526 15 16 223904.715 220558.631 1.49% 26.2 91s 624 468 221930.638 19 16 223904.715 220873.429 1.35% 27.3 95s 641 476 221459.483 28 9 223904.715 221026.177 1.29% 28.7 100s 675 490 222663.525 46 9 223904.715 221026.177 1.29% 28.6 105s 796 521 223090.518 107 5 223904.715 221026.177 1.29% 24.8 110s * 819 441 118 223325.09325 221026.177 1.03% 24.2 110s H 834 383 223186.03647 221026.177 0.97% 23.8 111s 843 381 221948.916 21 8 223186.036 221162.189 0.91% 24.0 115s * 875 328 40 222443.41098 221162.189 0.58% 23.6 118s 911 318 cutoff 36 222443.411 221163.101 0.58% 23.4 120s 1002 299 222318.821 22 8 222443.411 221899.079 0.24% 24.3 125s * 1031 248 33 222024.82244 221911.055 0.05% 24.1 126s * 1062 205 26 221990.70522 221985.215 0.00% 23.7 127s Cutting planes: Flow cover: 6 Explored 1063 nodes (31473 simplex iterations) in 127.64 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.219907052166e+05, best bound 2.219852150421e+05, gap 0.0025%