Build (method = -2) #dp: 335 Step-3' Graph: 41 vertices and 114 arcs (0.00s) Step-4' Graph: 5 vertices and 42 arcs (0.00s) #V4/#V3 = 0.12 #A4/#A3 = 0.37 Ready! (0.00s) Optimize a model with 18 rows, 43 columns and 125 nonzeros Presolve removed 2 rows and 2 columns Presolve time: 0.00s Presolved: 16 rows, 41 columns, 121 nonzeros Variable types: 0 continuous, 41 integer (0 binary) Found heuristic solution: objective 418.0000000 Found heuristic solution: objective 409.0000000 Optimize a model with 16 rows, 41 columns and 121 nonzeros Presolved: 16 rows, 41 columns, 121 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 4.200e+01 Factor NZ : 1.360e+02 Factor Ops : 1.496e+03 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 8.82215221e+02 -1.12827426e+03 8.00e+01 1.11e-16 4.56e+01 0s 1 2.62127865e+02 -2.76075584e+02 1.42e+00 2.22e-16 6.09e+00 0s 2 1.69385070e+02 2.62609047e+01 1.53e-01 2.22e-16 1.52e+00 0s 3 1.40917809e+02 1.30958284e+02 3.95e-14 1.11e-16 1.05e-01 0s 4 1.39713664e+02 1.39474185e+02 4.02e-14 3.33e-16 2.52e-03 0s 5 1.39666668e+02 1.39666652e+02 4.52e-14 2.22e-16 1.68e-07 0s 6 1.39666667e+02 1.39666667e+02 3.59e-14 3.33e-16 1.70e-13 0s Barrier solved model in 6 iterations and 0.00 seconds Optimal objective 1.39666667e+02 Root relaxation: objective 1.396667e+02, 33 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 139.66667 0 4 409.00000 139.66667 65.9% - 0s H 0 0 140.0000000 139.66667 0.24% - 0s Explored 0 nodes (43 simplex iterations) in 0.00 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 1.400000000000e+02, best bound 1.400000000000e+02, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.00 seconds Total run time: 0.01 seconds Objective: 140 Solution: 1 x [5, 13] 9 x [8, 10, 13] 57 x [4, 6, 10] 14 x [3, 6, 9] 4 x [5, 6, 6] 8 x [6, 6, 10] 4 x [7, 10, 11] 20 x [2, 7, 10] 8 x [1, 10, 11] 15 x [10, 10, 12]