Build (method = -2) #dp: 160 Step-3' Graph: 17 vertices and 67 arcs (0.00s) Step-4' Graph: 14 vertices and 61 arcs (0.00s) #V4/#V3 = 0.82 #A4/#A3 = 0.91 Ready! (0.00s) Optimize a model with 34 rows, 62 columns and 165 nonzeros Presolve removed 16 rows and 18 columns Presolve time: 0.00s Presolved: 18 rows, 44 columns, 114 nonzeros Variable types: 0 continuous, 44 integer (0 binary) Found heuristic solution: objective 194.0000000 Found heuristic solution: objective 134.0000000 Optimize a model with 18 rows, 44 columns and 114 nonzeros Presolved: 18 rows, 44 columns, 114 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 5.500e+01 Factor NZ : 1.710e+02 Factor Ops : 2.109e+03 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 4.92722215e+02 -8.12723657e+02 5.94e+02 2.22e-16 4.26e+01 0s 1 2.05510462e+02 -2.30627396e+02 2.67e+01 3.33e-16 5.42e+00 0s 2 1.55664672e+02 -4.83261392e-01 1.54e+00 1.67e-16 1.66e+00 0s 3 1.32685432e+02 1.02897006e+02 2.29e-03 2.22e-16 3.14e-01 0s 4 1.19480918e+02 1.12713046e+02 2.76e-04 2.22e-16 7.12e-02 0s 5 1.17704958e+02 1.16867851e+02 1.61e-05 2.22e-16 8.81e-03 0s 6 1.17500129e+02 1.17499767e+02 7.16e-09 3.33e-16 3.81e-06 0s 7 1.17500000e+02 1.17500000e+02 1.38e-14 3.33e-16 4.00e-12 0s Barrier solved model in 7 iterations and 0.00 seconds Optimal objective 1.17500000e+02 Root relaxation: objective 1.175000e+02, 16 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 117.50000 0 2 134.00000 117.50000 12.3% - 0s H 0 0 118.0000000 117.50000 0.42% - 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 1.180000000000e+02, best bound 1.180000000000e+02, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.00 seconds Total run time: 0.01 seconds Objective: 118 Solution: 4 x [16] 2 x [3, 17] 13 x [11, 13] 12 x [3, 19] 3 x [2, 11] 10 x [4, 6] 1 x [3, 6] 14 x [12] 11 x [5, 20] 1 x [10, 20] 4 x [18, 20] 17 x [15] 4 x [3, 7] 12 x [1, 14] 3 x [9, 14] 2 x [9, 9] 1 x [8] 4 x [8, 8]