Build (method = -2) #dp: 86 Step-3' Graph: 18 vertices and 57 arcs (0.00s) Step-4' Graph: 10 vertices and 41 arcs (0.00s) #V4/#V3 = 0.56 #A4/#A3 = 0.72 Ready! (0.00s) Optimize a model with 20 rows, 42 columns and 112 nonzeros Presolve removed 6 rows and 6 columns Presolve time: 0.00s Presolved: 14 rows, 36 columns, 96 nonzeros Variable types: 0 continuous, 36 integer (0 binary) Found heuristic solution: objective 999.0000000 Found heuristic solution: objective 924.0000000 Optimize a model with 14 rows, 36 columns and 96 nonzeros Presolved: 14 rows, 36 columns, 96 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 4.100e+01 Factor NZ : 1.050e+02 Factor Ops : 1.015e+03 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 2.28831692e+03 -2.15248794e+03 2.95e+03 2.22e-16 1.52e+02 0s 1 9.78565956e+02 -3.63899441e+02 1.80e+02 3.33e-16 2.07e+01 0s 2 7.36285031e+02 2.74010159e+02 3.63e+01 2.22e-16 6.20e+00 0s 3 5.89009796e+02 5.24669877e+02 5.81e-02 1.94e-16 8.25e-01 0s 4 5.62669379e+02 5.53530113e+02 4.02e-03 1.35e-16 1.17e-01 0s 5 5.59913551e+02 5.58187268e+02 1.12e-03 1.50e-16 2.21e-02 0s 6 5.59347560e+02 5.59327044e+02 9.83e-13 1.33e-16 2.63e-04 0s 7 5.59333333e+02 5.59333333e+02 5.68e-14 2.77e-16 1.36e-09 0s Barrier solved model in 7 iterations and 0.00 seconds Optimal objective 5.59333333e+02 Root relaxation: objective 5.593333e+02, 13 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 559.33333 0 3 924.00000 559.33333 39.5% - 0s H 0 0 560.0000000 559.33333 0.12% - 0s Explored 0 nodes (14 simplex iterations) in 0.00 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 5.600000000000e+02, best bound 5.600000000000e+02, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.00 seconds Total run time: 0.01 seconds Objective: 560 Solution: 154 x [10] 48 x [1, 6] 1 x [5] 10 x [5, 7] 45 x [4, 5] 124 x [5, 6] 74 x [3, 8] 68 x [3, 4] 19 x [2, 6, 7] 1 x [6, 9] 7 x [6, 9, 9] 9 x [9, 9, 9]