Build (method = -2) #dp: 3727 Step-3' Graph: 708 vertices and 2117 arcs (0.04s) Step-4' Graph: 108 vertices and 917 arcs (0.04s) #V4/#V3 = 0.15 #A4/#A3 = 0.43 Ready! (0.04s) Optimize a model with 168 rows, 918 columns and 2542 nonzeros Presolve removed 9 rows and 28 columns Presolve time: 0.01s Presolved: 159 rows, 890 columns, 2492 nonzeros Variable types: 0 continuous, 890 integer (51 binary) Found heuristic solution: objective 2365.0000000 Found heuristic solution: objective 1768.0000000 Optimize a model with 159 rows, 890 columns and 2492 nonzeros Presolved: 159 rows, 890 columns, 2492 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 1.318e+03 Factor NZ : 3.996e+03 Factor Ops : 1.266e+05 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 9.99354255e+04 -1.97183905e+05 4.10e+05 2.22e-16 1.21e+03 0s 1 2.47475311e+04 -5.95897391e+04 5.97e+04 5.55e-16 1.85e+02 0s 2 4.19404353e+03 -1.33990954e+04 4.96e+03 5.00e-15 1.98e+01 0s 3 1.88341506e+03 -3.62420490e+03 3.90e+02 2.44e-15 3.61e+00 0s 4 1.20076640e+03 -9.39949618e+02 5.40e+01 1.22e-15 1.22e+00 0s 5 1.05610735e+03 5.25890216e+01 2.40e+01 5.55e-16 5.65e-01 0s 6 9.70332775e+02 5.40806121e+02 5.63e+00 6.66e-16 2.37e-01 0s 7 9.46493375e+02 7.96999170e+02 1.35e+00 7.03e-16 8.21e-02 0s 8 9.36518013e+02 9.22273383e+02 2.31e-12 8.10e-16 7.77e-03 0s 9 9.35698433e+02 9.35562062e+02 8.51e-13 7.77e-16 7.44e-05 0s 10 9.35666698e+02 9.35666562e+02 5.31e-12 6.66e-16 7.44e-08 0s 11 9.35666667e+02 9.35666667e+02 1.25e-12 8.13e-16 7.44e-11 0s Barrier solved model in 11 iterations and 0.01 seconds Optimal objective 9.35666667e+02 Root relaxation: objective 9.356667e+02, 293 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 935.66667 0 26 1768.00000 935.66667 47.1% - 0s H 0 0 936.0000000 935.66667 0.04% - 0s Explored 0 nodes (402 simplex iterations) in 0.05 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 9.360000000000e+02, best bound 9.360000000000e+02, gap 0.0% Preprocessing time: 0.05 seconds Gurobi run time: 0.05 seconds Total run time: 0.10 seconds Objective: 936 Solution: 29 x [28, 30, 35] 58 x [12, 19, 20] 14 x [19, 23, 35] 14 x [3, 20, 54] 4 x [17, 33, 42] 34 x [15, 42, 57] 26 x [17, 42, 45] 2 x [10, 11, 20] 7 x [10, 20, 23] 1 x [26, 35, 37] 49 x [11, 23, 40] 1 x [4, 8, 30] 4 x [4, 8, 56] 27 x [5, 25, 54] 2 x [25, 35, 54] 20 x [8, 25, 30] 6 x [14, 35, 52] 32 x [27, 39, 55] 46 x [55, 56, 57] 16 x [12, 34, 38] 11 x [21, 34, 38] 1 x [11, 23, 34] 7 x [2, 6, 7] 1 x [2, 7] 1 x [7, 12, 35] 46 x [2, 6, 58] 4 x [32, 49, 54] 58 x [41, 47, 49] 1 x [29, 35, 49] 11 x [9, 22, 54] 32 x [2, 8, 22] 33 x [16, 24, 41] 87 x [1, 36, 60] 1 x [18, 46, 54] 3 x [14, 41, 46] 12 x [9, 13, 54] 17 x [6, 31, 43] 27 x [31, 43, 59] 12 x [2, 15, 48] 8 x [15, 24, 54] 67 x [5, 14, 48] 6 x [31, 36, 51] 1 x [31, 51, 54] 19 x [18, 31, 57] 9 x [6, 27, 59] 19 x [26, 27, 35] 6 x [27, 29, 35] 14 x [14, 44, 53] 28 x [11, 44, 50] 2 x [11, 23, 44]