Build (method = -2) #dp: 386 Step-3' Graph: 66 vertices and 260 arcs (0.00s) Step-4' Graph: 51 vertices and 230 arcs (0.00s) #V4/#V3 = 0.77 #A4/#A3 = 0.88 Ready! (0.00s) Optimize a model with 70 rows, 231 columns and 603 nonzeros Presolve removed 19 rows and 25 columns Presolve time: 0.00s Presolved: 51 rows, 206 columns, 557 nonzeros Variable types: 0 continuous, 206 integer (58 binary) Found heuristic solution: objective 167.0000000 Optimize a model with 51 rows, 206 columns and 557 nonzeros Presolved: 51 rows, 206 columns, 557 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 3.380e+02 Factor NZ : 1.007e+03 Factor Ops : 2.367e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 8.45497071e+02 -1.53975391e+03 1.79e+03 1.91e-01 2.93e+01 0s 1 2.96248147e+02 -6.86987826e+02 2.62e+02 3.89e-16 5.22e+00 0s 2 1.89014930e+02 -5.88550768e+01 2.99e+01 1.78e-15 8.06e-01 0s 3 1.57649091e+02 5.61155768e+01 4.18e+00 7.77e-16 2.66e-01 0s 4 1.44634596e+02 1.29895892e+02 6.29e-02 2.29e-16 3.55e-02 0s 5 1.42035826e+02 1.39916538e+02 6.66e-03 1.91e-16 5.10e-03 0s 6 1.41502398e+02 1.41495699e+02 1.95e-05 2.32e-16 1.61e-05 0s 7 1.41500000e+02 1.41500000e+02 4.05e-11 2.22e-16 3.50e-11 0s Barrier solved model in 7 iterations and 0.00 seconds Optimal objective 1.41500000e+02 Root relaxation: objective 1.415000e+02, 82 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 141.50000 0 1 167.00000 141.50000 15.3% - 0s H 0 0 142.0000000 141.50000 0.35% - 0s Explored 0 nodes (108 simplex iterations) in 0.01 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 1.420000000000e+02, best bound 1.420000000000e+02, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.01 seconds Total run time: 0.02 seconds Objective: 142 Solution: 18 x [6, 9] 6 x [16] 2 x [11] 2 x [12] 21 x [15] 13 x [3] 22 x [10] 1 x [10, 19] 1 x [6, 10] 2 x [8, 10] 1 x [2, 10] 4 x [2, 2, 10] 5 x [17] 5 x [7, 17] 1 x [4, 17] 1 x [5, 17] 16 x [14] 7 x [1, 13] 2 x [13, 18] 9 x [18, 18] 1 x [13] 2 x [13, 13]