Gurobi 5.6.3 (linux64) logging started Tue Oct 7 22:57:56 2014 Optimize a model with 34454 rows, 17293 columns and 85805 nonzeros Presolve removed 131 rows and 0 columns Presolve time: 0.43s Presolved: 34323 rows, 17293 columns, 85674 nonzeros Variable types: 1 continuous, 17292 integer (17292 binary) Found heuristic solution: objective 1.1652729 Found heuristic solution: objective 1.1335562 Found heuristic solution: objective 0.9785936 Root relaxation: objective 2.586471e-03, 25235 iterations, 3.81 seconds Total elapsed time = 6.36s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00259 0 16474 0.97859 0.00259 100% - 7s H 0 0 0.1765829 0.00259 98.5% - 17s 0 0 0.07520 0 454 0.17658 0.07520 57.4% - 28s 0 0 0.08117 0 571 0.17658 0.08117 54.0% - 29s 0 0 0.09885 0 595 0.17658 0.09885 44.0% - 29s H 0 0 0.1755292 0.09885 43.7% - 29s 0 0 0.10379 0 553 0.17553 0.10379 40.9% - 29s 0 0 0.10379 0 533 0.17553 0.10379 40.9% - 29s 0 0 0.11018 0 500 0.17553 0.11018 37.2% - 29s 0 0 0.12191 0 401 0.17553 0.12191 30.5% - 29s H 0 0 0.1717089 0.12191 29.0% - 29s 0 0 0.12672 0 489 0.17171 0.12672 26.2% - 29s 0 0 0.12673 0 507 0.17171 0.12673 26.2% - 30s H 0 0 0.1651525 0.12673 23.3% - 30s 0 0 0.13782 0 386 0.16515 0.13782 16.6% - 30s 0 0 0.14040 0 357 0.16515 0.14040 15.0% - 30s 0 1 0.14050 0 357 0.16515 0.14050 14.9% - 32s H 1 1 0.1639952 0.14050 14.3% 544 32s Cutting planes: Gomory: 4 Implied bound: 22 Clique: 6 MIR: 7 Zero half: 5 Explored 1 nodes (81863 simplex iterations) in 32.09 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.639952107157e-01, best bound 1.639952107157e-01, gap 0.0%