Gurobi 5.6.3 (linux64) logging started Wed Oct 8 01:55:26 2014 Optimize a model with 36481 rows, 36291 columns and 144590 nonzeros Presolve time: 1.00s Presolved: 36481 rows, 36291 columns, 144590 nonzeros Variable types: 1 continuous, 36290 integer (36290 binary) Found heuristic solution: objective 1.1028109 Found heuristic solution: objective 1.0453752 Found heuristic solution: objective 0.9360454 Root relaxation: objective 9.005885e-02, 9902 iterations, 2.83 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.09006 0 1752 0.93605 0.09006 90.4% - 4s H 0 0 0.1530615 0.09006 41.2% - 7s 0 0 0.10028 0 1036 0.15306 0.10028 34.5% - 11s H 0 0 0.1527199 0.10028 34.3% - 12s 0 0 0.10034 0 1053 0.15272 0.10034 34.3% - 13s 0 0 0.10305 0 1134 0.15272 0.10305 32.5% - 13s 0 0 0.10817 0 1017 0.15272 0.10817 29.2% - 14s 0 0 0.10959 0 1069 0.15272 0.10959 28.2% - 14s H 0 0 0.1524277 0.10959 28.1% - 14s 0 0 0.11327 0 972 0.15243 0.11327 25.7% - 14s 0 0 0.11327 0 1006 0.15243 0.11327 25.7% - 14s 0 0 0.11327 0 897 0.15243 0.11327 25.7% - 14s H 0 0 0.1523754 0.11327 25.7% - 15s H 0 0 0.1523572 0.11327 25.7% - 15s 0 2 0.11340 0 889 0.15236 0.11340 25.6% - 15s * 38 37 23 0.1499215 0.11472 23.5% 267 15s * 44 37 27 0.1497265 0.11472 23.4% 239 15s * 46 36 27 0.1480713 0.11472 22.5% 229 15s * 51 36 4 0.1479173 0.11472 22.4% 231 15s H 54 35 0.1451688 0.11472 21.0% 219 15s * 62 38 6 0.1442472 0.11532 20.1% 208 16s H 64 32 0.1428843 0.11532 19.3% 204 16s H 64 32 0.1426635 0.11532 19.2% 204 16s Cutting planes: Gomory: 4 MIR: 33 Zero half: 8 Explored 99 nodes (48717 simplex iterations) in 16.26 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.426635387599e-01, best bound 1.426635387599e-01, gap 0.0%