Gurobi 5.0.1 (linux64) logging started Wed Apr 24 11:27:23 2013 Optimize a model with 1430 rows, 169130 columns and 338130 nonzeros Presolve time: 0.37s Presolved: 1430 rows, 169130 columns, 338130 nonzeros Variable types: 169000 continuous, 130 integer (130 binary) Root relaxation: objective 1.766618e+05, 6454 iterations, 0.48 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 176661.774 0 6 - 176661.774 - - 0s H 0 0 192100.00000 176661.774 8.04% - 1s 0 0 177168.804 0 5 192100.000 177168.804 7.77% - 2s H 0 0 185655.59943 177168.804 4.57% - 2s H 0 0 184886.00000 177168.804 4.17% - 2s 0 0 177241.333 0 8 184886.000 177241.333 4.13% - 2s H 0 0 184664.00000 177241.333 4.02% - 2s 0 0 177261.688 0 4 184664.000 177261.688 4.01% - 3s H 0 0 183284.00000 177261.688 3.29% - 3s 0 0 177263.994 0 5 183284.000 177263.994 3.28% - 3s H 0 0 183281.00000 177263.994 3.28% - 3s 0 0 177264.568 0 3 183281.000 177264.568 3.28% - 3s H 0 0 177815.00000 177264.568 0.31% - 5s 0 2 177273.341 0 3 177815.000 177273.341 0.30% - 5s H 16 8 177774.00000 177526.150 0.14% 60.0 6s * 17 7 14 177757.00000 177526.150 0.13% 57.1 6s H 20 3 177580.00000 177531.200 0.03% 52.1 6s H 24 1 177558.00000 177531.476 0.01% 44.9 7s H 25 2 177556.66935 177531.637 0.01% 43.2 7s * 26 2 10 177547.00000 177531.653 0.01% 42.8 7s Cutting planes: Implied bound: 120 Flow cover: 3 Explored 27 nodes (8308 simplex iterations) in 7.08 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.775470000000e+05, best bound 1.775316532258e+05, gap 0.0086%