Build (method = -2) #dp: 186 Step-3' Graph: 27 vertices and 113 arcs (0.00s) Step-4' Graph: 14 vertices and 87 arcs (0.00s) #V4/#V3 = 0.52 #A4/#A3 = 0.77 Ready! (0.00s) Optimize a model with 32 rows, 88 columns and 242 nonzeros Presolve removed 8 rows and 9 columns Presolve time: 0.00s Presolved: 24 rows, 79 columns, 218 nonzeros Variable types: 0 continuous, 79 integer (0 binary) Found heuristic solution: objective 1999.0000000 Optimize a model with 24 rows, 79 columns and 218 nonzeros Presolved: 24 rows, 79 columns, 218 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 9.200e+01 Factor NZ : 2.580e+02 Factor Ops : 3.556e+03 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 6.55824260e+03 -9.46435815e+03 1.32e+04 2.22e-16 2.67e+02 0s 1 2.15782625e+03 -3.46572878e+03 1.10e+03 6.66e-16 4.35e+01 0s 2 1.25119817e+03 -3.03034291e+02 1.26e+01 5.55e-16 9.21e+00 0s 3 9.54893202e+02 7.08555848e+02 1.97e-01 5.55e-16 1.45e+00 0s 4 9.07900409e+02 8.56746875e+02 1.61e-02 4.37e-16 3.01e-01 0s 5 8.94997490e+02 8.84001053e+02 1.00e-03 4.02e-16 6.47e-02 0s 6 8.94213279e+02 8.94171756e+02 1.47e-05 4.44e-16 2.44e-04 0s 7 8.94200000e+02 8.94199999e+02 1.75e-10 4.60e-16 1.02e-08 0s Barrier solved model in 7 iterations and 0.00 seconds Optimal objective 8.94200000e+02 Root relaxation: objective 8.942000e+02, 32 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 894.20000 0 10 1999.00000 894.20000 55.3% - 0s H 0 0 895.0000000 894.20000 0.09% - 0s Explored 0 nodes (38 simplex iterations) in 0.00 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 8.950000000000e+02, best bound 8.950000000000e+02, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.00 seconds Total run time: 0.01 seconds Objective: 895 Solution: 15 x [15] 12 x [6] 23 x [14, 17] 97 x [2, 13] 46 x [1, 5] 97 x [3, 18] 78 x [5, 18] 89 x [7, 9] 51 x [7, 11] 12 x [11, 12] 77 x [12, 12] 1 x [11] 5 x [5, 8] 122 x [8, 10, 17] 14 x [8, 13, 17] 86 x [5, 13, 16] 53 x [5, 5] 1 x [4, 13] 2 x [4, 13, 13] 14 x [4, 4, 17]