Gurobi 5.0.1 (linux64) logging started Sat Dec 8 10:26:47 2012 Optimize a model with 1095 rows, 1080 columns and 3553 nonzeros Presolve removed 101 rows and 61 columns Presolve time: 0.01s Presolved: 994 rows, 1019 columns, 3315 nonzeros Variable types: 678 continuous, 341 integer (341 binary) Root relaxation: objective 9.458030e+04, 487 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 94580.2951 0 162 - 94580.2951 - - 0s H 0 0 171762.00000 94580.2951 44.9% - 0s H 0 0 171476.00000 94580.2951 44.8% - 0s 0 0 117237.140 0 44 171476.000 117237.140 31.6% - 0s 0 0 117842.434 0 39 171476.000 117842.434 31.3% - 0s 0 0 118140.039 0 13 171476.000 118140.039 31.1% - 0s 0 0 118169.063 0 10 171476.000 118169.063 31.1% - 0s 0 0 118169.074 0 10 171476.000 118169.074 31.1% - 0s 0 2 118170.029 0 10 171476.000 118170.029 31.1% - 0s H 27 27 119689.00000 118174.693 1.27% 3.3 0s H 108 90 119129.00000 118177.291 0.80% 5.8 2s H 239 165 119010.00000 118186.446 0.69% 6.0 4s 248 175 118978.828 37 2 119010.000 118186.446 0.69% 6.1 5s * 257 169 46 118980.00000 118186.446 0.67% 6.0 5s H 284 184 118949.00000 118191.118 0.64% 6.2 5s H 303 187 118903.00000 118191.118 0.60% 6.3 6s H 374 223 118848.00000 118208.278 0.54% 6.1 7s H 443 194 118539.00000 118209.101 0.28% 5.8 8s * 458 205 38 118520.00000 118209.101 0.26% 5.7 9s 496 231 118490.269 27 4 118520.000 118211.095 0.26% 5.7 10s H 600 159 118363.00000 118212.413 0.13% 5.6 12s 689 188 cutoff 34 118363.000 118212.413 0.13% 6.5 15s 929 175 118354.970 22 7 118363.000 118268.791 0.08% 5.8 20s 1164 124 118359.374 34 5 118363.000 118289.496 0.06% 5.4 25s H 1381 106 118360.00000 118311.849 0.04% 5.1 29s 1402 105 cutoff 30 118360.000 118314.159 0.04% 5.1 30s Cutting planes: Gomory: 8 Flow cover: 16 Flow path: 7 Zero half: 1 Explored 1629 nodes (8630 simplex iterations) in 34.86 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.183600000000e+05, best bound 1.183489640955e+05, gap 0.0093%