Build (method = -2) #dp: 167 Step-3' Graph: 20 vertices and 78 arcs (0.00s) Step-4' Graph: 14 vertices and 66 arcs (0.00s) #V4/#V3 = 0.70 #A4/#A3 = 0.85 Ready! (0.00s) Optimize a model with 34 rows, 67 columns and 180 nonzeros Presolve removed 15 rows and 17 columns Presolve time: 0.00s Presolved: 19 rows, 50 columns, 129 nonzeros Variable types: 0 continuous, 50 integer (0 binary) Found heuristic solution: objective 1871.0000000 Found heuristic solution: objective 1834.0000000 Found heuristic solution: objective 1689.0000000 Optimize a model with 19 rows, 50 columns and 129 nonzeros Presolved: 19 rows, 50 columns, 129 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 6.500e+01 Factor NZ : 1.900e+02 Factor Ops : 2.470e+03 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 5.68466863e+03 -5.67388386e+03 4.00e+03 2.22e-16 3.28e+02 0s 1 2.19315274e+03 -8.60807285e+02 1.98e+02 4.44e-16 3.61e+01 0s 2 1.68776838e+03 8.84687660e+02 7.80e-01 3.33e-16 7.52e+00 0s 3 1.49718590e+03 1.43017245e+03 9.25e-03 2.22e-16 6.26e-01 0s 4 1.47037751e+03 1.46953703e+03 5.87e-05 2.22e-16 7.86e-03 0s 5 1.47000000e+03 1.47000000e+03 3.84e-10 2.22e-16 6.69e-08 0s 6 1.47000000e+03 1.47000000e+03 1.42e-13 2.22e-16 6.89e-14 0s Barrier solved model in 6 iterations and 0.00 seconds Optimal objective 1.47000000e+03 Root relaxation: objective 1.470000e+03, 20 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 1470.0000000 1470.00000 0.0% - 0s Explored 0 nodes (20 simplex iterations) in 0.00 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 1.470000000000e+03, best bound 1.470000000000e+03, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.00 seconds Total run time: 0.01 seconds Objective: 1470 Solution: 129 x [14] 63 x [16, 17] 76 x [20] 162 x [13] 121 x [5] 103 x [6] 20 x [1, 3] 56 x [1, 10] 145 x [2] 2 x [3, 19] 11 x [16, 19] 111 x [7, 11] 49 x [8] 17 x [8, 11] 21 x [3, 8] 155 x [9] 7 x [4, 4] 27 x [15, 18] 64 x [18, 18] 131 x [12, 15]