Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:56:19 2013 Optimize a model with 2700 rows, 27100 columns and 58050 nonzeros Presolve removed 150 rows and 100 columns Presolve time: 0.23s Presolved: 2550 rows, 27000 columns, 55900 nonzeros Variable types: 26050 continuous, 950 integer (950 binary) Root relaxation: objective 2.208160e+05, 4766 iterations, 0.24 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 220815.985 0 4 - 220815.985 - - 0s H 0 0 226548.91822 220815.985 2.53% - 0s 0 0 220898.913 0 2 226548.918 220898.913 2.49% - 0s 0 0 220941.607 0 2 226548.918 220941.607 2.48% - 0s 0 0 220945.281 0 3 226548.918 220945.281 2.47% - 0s 0 0 220948.011 0 3 226548.918 220948.011 2.47% - 0s 0 0 220951.138 0 3 226548.918 220951.138 2.47% - 0s 0 0 220954.494 0 3 226548.918 220954.494 2.47% - 0s 0 0 220955.008 0 3 226548.918 220955.008 2.47% - 1s 0 0 220956.338 0 3 226548.918 220956.338 2.47% - 1s 0 0 220958.392 0 3 226548.918 220958.392 2.47% - 1s 0 0 220959.353 0 3 226548.918 220959.353 2.47% - 1s 0 0 220959.686 0 4 226548.918 220959.686 2.47% - 1s 0 0 220959.880 0 3 226548.918 220959.880 2.47% - 1s H 0 0 226191.36353 220959.880 2.31% - 1s 0 0 220960.687 0 4 226191.364 220960.687 2.31% - 1s 0 0 220961.711 0 3 226191.364 220961.711 2.31% - 1s 0 0 220964.813 0 4 226191.364 220964.813 2.31% - 1s 0 0 220965.984 0 3 226191.364 220965.984 2.31% - 1s 0 0 220966.089 0 3 226191.364 220966.089 2.31% - 1s 0 0 220966.866 0 3 226191.364 220966.866 2.31% - 1s 0 0 220967.823 0 3 226191.364 220967.823 2.31% - 1s 0 0 220968.431 0 3 226191.364 220968.431 2.31% - 1s 0 0 220970.254 0 4 226191.364 220970.254 2.31% - 2s 0 0 220971.104 0 3 226191.364 220971.104 2.31% - 2s 0 0 220972.708 0 3 226191.364 220972.708 2.31% - 2s 0 0 220973.214 0 4 226191.364 220973.214 2.31% - 2s 0 0 220974.265 0 4 226191.364 220974.265 2.31% - 2s 0 0 220974.265 0 4 226191.364 220974.265 2.31% - 2s 0 0 220974.272 0 4 226191.364 220974.272 2.31% - 2s 0 0 220974.356 0 3 226191.364 220974.356 2.31% - 2s 0 0 220974.938 0 3 226191.364 220974.938 2.31% - 2s 0 0 220975.527 0 3 226191.364 220975.527 2.31% - 2s 0 0 220975.811 0 3 226191.364 220975.811 2.31% - 2s 0 0 220977.178 0 3 226191.364 220977.178 2.31% - 2s 0 0 220979.715 0 3 226191.364 220979.715 2.30% - 2s 0 0 220980.230 0 3 226191.364 220980.230 2.30% - 2s 0 0 220980.230 0 3 226191.364 220980.230 2.30% - 2s 0 0 220980.935 0 3 226191.364 220980.935 2.30% - 2s 0 2 220990.150 0 3 226191.364 220990.150 2.30% - 3s H 5 5 221543.39034 221131.652 0.19% 44.4 3s H 26 16 221526.70200 221193.767 0.15% 24.4 3s * 33 15 13 221477.24643 221193.767 0.13% 22.8 3s * 58 14 11 221476.58715 221375.401 0.05% 21.8 3s Cutting planes: Implied bound: 2 Flow cover: 26 Explored 92 nodes (6659 simplex iterations) in 4.10 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.214765871511e+05, best bound 2.214612543428e+05, gap 0.0069%