Warning: Output names have been modified to conform to LP format. Default row names c1, c2 ... being created. Tried aggregator 5 times. MIP Presolve eliminated 192586 rows and 35516 columns. MIP Presolve modified 23961 coefficients. Aggregator did 1287 substitutions. Reduced MIP has 60652 rows, 11147 columns, and 239853 nonzeros. Presolve time = 4.46 sec. Clique table members: 10760. MIP emphasis: balance optimality and feasibility. MIP search method: dynamic search. Parallel mode: none, using 1 thread. Root relaxation solution time = 0.67 sec. Nodes Cuts/ Node Left Objective IInf Best Integer Best Node ItCnt Gap 0 0 -2920.2222 253 -2920.2222 2137 * 0+ 0 -2910.0000 -2920.2222 2137 0.35% 0 0 -2919.0000 107 -2910.0000 Cuts: 411 2264 0.31% * 0+ 0 -2916.0000 -2919.0000 2264 0.10% * 0 0 integral 0 -2919.0000 Cuts: 13 2280 0.00% 0 0 cutoff -2919.0000 -2919.0000 2280 0.00% GUB cover cuts applied: 1 Clique cuts applied: 119 Cover cuts applied: 1 Implied bound cuts applied: 25 Zero-half cuts applied: 35 Gomory fractional cuts applied: 14 >>>>>>> Objval = -2919.000000 (int)-2919 Warning: Output names have been modified to conform to LP format. Default row names c1, c2 ... being created. MIP start values provide initial solution with objective 1563.0000. Tried aggregator 5 times. MIP Presolve eliminated 192569 rows and 35504 columns. MIP Presolve modified 23960 coefficients. Aggregator did 1279 substitutions. Reduced MIP has 60677 rows, 11167 columns, and 242847 nonzeros. Presolve time = 4.56 sec. Clique table members: 10713. MIP emphasis: balance optimality and feasibility. MIP search method: dynamic search. Parallel mode: none, using 1 thread. Root relaxation solution time = 9.57 sec. Nodes Cuts/ Node Left Objective IInf Best Integer Best Node ItCnt Gap 0 0 287.6444 431 1563.0000 287.6444 12724 81.60% 0 0 426.5000 26 1563.0000 Cuts: 627 12883 72.71% * 0 0 integral 0 430.0000 Cuts: 14 12894 0.00% 0 0 cutoff 430.0000 430.0000 12894 0.00% Elapsed time = 15.99 sec. (tree size = 0.00 MB, solutions = 2) GUB cover cuts applied: 1 Clique cuts applied: 307 Cover cuts applied: 3 Implied bound cuts applied: 71 Zero-half cuts applied: 47 Gomory fractional cuts applied: 5 >>>>>>> Objval = 430.000000 (int)430 Warning: Output names have been modified to conform to LP format. Default row names c1, c2 ... being created. MIP start values provide initial solution with objective 2473.0000. Tried aggregator 5 times. Presolve has eliminated 191997 rows and 35236 columns... Aggregator has done 1230 substitutions... MIP Presolve eliminated 191997 rows and 35236 columns. MIP Presolve modified 23990 coefficients. Aggregator did 1230 substitutions. Reduced MIP has 61298 rows, 11484 columns, and 251230 nonzeros. Presolve time = 5.25 sec. Clique table members: 10356. MIP emphasis: balance optimality and feasibility. MIP search method: dynamic search. Parallel mode: none, using 1 thread. Root relaxation solution time = 12.04 sec. Nodes Cuts/ Node Left Objective IInf Best Integer Best Node ItCnt Gap 0 0 1909.5278 141 2473.0000 1909.5278 20685 22.78% 0 0 2026.0000 24 2473.0000 Cuts: 311 21678 18.08% 0 0 2051.6667 63 2473.0000 Cuts: 56 21716 17.04% * 0+ 0 2061.0000 2051.6667 21718 0.45% 0 0 cutoff 2061.0000 2051.6667 21718 0.45% Elapsed time = 20.50 sec. (tree size = 0.00 MB, solutions = 2) GUB cover cuts applied: 1 Clique cuts applied: 164 Cover cuts applied: 1 Implied bound cuts applied: 22 Zero-half cuts applied: 16 Gomory fractional cuts applied: 7