Build (method = -2) #dp: 552 Step-3' Graph: 96 vertices and 281 arcs (0.00s) Step-4' Graph: 56 vertices and 201 arcs (0.00s) #V4/#V3 = 0.58 #A4/#A3 = 0.72 Ready! (0.00s) Optimize a model with 76 rows, 202 columns and 498 nonzeros Presolve removed 21 rows and 30 columns Presolve time: 0.00s Presolved: 55 rows, 172 columns, 453 nonzeros Variable types: 0 continuous, 172 integer (0 binary) Found heuristic solution: objective 458.0000000 Found heuristic solution: objective 443.0000000 Optimize a model with 55 rows, 172 columns and 453 nonzeros Presolved: 55 rows, 172 columns, 453 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 3.270e+02 Factor NZ : 1.008e+03 Factor Ops : 2.159e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.42798607e+03 -8.93334424e+03 5.37e+03 2.22e-16 1.03e+02 0s 1 7.40264093e+02 -2.85633580e+03 7.25e+02 5.55e-16 1.83e+01 0s 2 4.81570464e+02 -5.65179567e+02 3.71e+01 6.66e-16 3.22e+00 0s 3 4.06545237e+02 1.81697028e+02 1.78e+00 1.11e-15 6.39e-01 0s 4 3.70724396e+02 2.79251351e+02 1.67e-01 2.22e-16 2.58e-01 0s 5 3.61848009e+02 3.24939759e+02 6.25e-02 2.71e-16 1.04e-01 0s 6 3.58387479e+02 3.53897136e+02 1.85e-02 1.11e-16 1.27e-02 0s 7 3.57036618e+02 3.56931064e+02 5.66e-04 3.33e-16 2.98e-04 0s 8 3.57000037e+02 3.56999931e+02 2.27e-13 3.33e-16 2.98e-07 0s 9 3.57000000e+02 3.57000000e+02 1.27e-11 1.01e-16 2.98e-13 0s Barrier solved model in 9 iterations and 0.00 seconds Optimal objective 3.57000000e+02 Root relaxation: objective 3.570000e+02, 78 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 357.0000000 357.00000 0.0% - 0s Explored 0 nodes (78 simplex iterations) in 0.01 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 3.570000000000e+02, best bound 3.570000000000e+02, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.01 seconds Total run time: 0.02 seconds Objective: 357 Solution: 12 x [3] 16 x [12] 48 x [18] 16 x [1, 18] 1 x [10, 18] 16 x [14] 16 x [14, 16] 14 x [8, 14] 2 x [7, 8, 14] 8 x [20] 63 x [7, 13, 20] 32 x [5, 6, 8] 4 x [9, 11] 10 x [9, 15] 11 x [6, 9] 4 x [2, 10, 11] 12 x [2, 15] 22 x [2, 4, 7, 13, 15] 2 x [2, 4, 7, 15] 32 x [2, 6, 17] 12 x [6, 11, 15] 4 x [6, 10, 15, 19]