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 191484 rows and 35374 columns. MIP Presolve modified 23957 coefficients. Aggregator did 1260 substitutions. Reduced MIP has 61781 rows, 11316 columns, and 244529 nonzeros. Presolve time = 4.48 sec. Clique table members: 10615. MIP emphasis: balance optimality and feasibility. MIP search method: dynamic search. Parallel mode: none, using 1 thread. Root relaxation solution time = 0.56 sec. Nodes Cuts/ Node Left Objective IInf Best Integer Best Node ItCnt Gap 0 0 -2928.2222 176 -2928.2222 1564 * 0+ 0 -2919.0000 -2928.2222 1564 0.32% * 0 0 integral 0 -2927.0000 Cuts: 238 1660 0.00% 0 0 cutoff -2927.0000 -2927.0000 1660 0.00% GUB cover cuts applied: 1 Clique cuts applied: 56 Implied bound cuts applied: 15 Zero-half cuts applied: 16 Gomory fractional cuts applied: 11 >>>>>>> Objval = -2927.000000 (int)-2927 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 1609.0000. Tried aggregator 5 times. MIP Presolve eliminated 191472 rows and 35365 columns. MIP Presolve modified 23957 coefficients. Aggregator did 1257 substitutions. Reduced MIP has 61796 rows, 11328 columns, and 247484 nonzeros. Presolve time = 4.50 sec. Clique table members: 10590. MIP emphasis: balance optimality and feasibility. MIP search method: dynamic search. Parallel mode: none, using 1 thread. Root relaxation solution time = 9.73 sec. Nodes Cuts/ Node Left Objective IInf Best Integer Best Node ItCnt Gap 0 0 400.1016 700 1609.0000 400.1016 13703 75.13% 0 0 531.0000 18 1609.0000 Cuts: 380 13942 67.00% * 0+ 0 533.0000 531.0000 13942 0.38% 0 0 cutoff 533.0000 Cuts: 8 13944 0.00% 0 0 cutoff 533.0000 533.0000 13944 0.00% Elapsed time = 16.25 sec. (tree size = 0.00 MB, solutions = 2) GUB cover cuts applied: 1 Clique cuts applied: 98 Cover cuts applied: 3 Implied bound cuts applied: 33 Zero-half cuts applied: 38 Gomory fractional cuts applied: 9 >>>>>>> Objval = 533.000000 (int)533 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 2349.0000. Tried aggregator 5 times. Presolve has eliminated 190912 rows and 35146 columns... Aggregator has done 1205 substitutions... MIP Presolve eliminated 190912 rows and 35146 columns. MIP Presolve modified 23980 coefficients. Aggregator did 1205 substitutions. Reduced MIP has 62408 rows, 11599 columns, and 255668 nonzeros. Presolve time = 5.17 sec. Clique table members: 10421. MIP emphasis: balance optimality and feasibility. MIP search method: dynamic search. Parallel mode: none, using 1 thread. Root relaxation solution time = 13.03 sec. Nodes Cuts/ Node Left Objective IInf Best Integer Best Node ItCnt Gap 0 0 1791.5278 138 2349.0000 1791.5278 20938 23.73% 0 0 1990.8750 56 2349.0000 Cuts: 304 21799 15.25% 0 0 2009.6667 63 2349.0000 Cuts: 35 21826 14.45% * 0+ 0 2019.0000 2009.6667 21828 0.46% 0 0 cutoff 2019.0000 2009.6667 21828 0.46% Elapsed time = 21.21 sec. (tree size = 0.00 MB, solutions = 2) GUB cover cuts applied: 1 Clique cuts applied: 81 Implied bound cuts applied: 19 Zero-half cuts applied: 13 Gomory fractional cuts applied: 5