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 191515 rows and 35378 columns. MIP Presolve modified 23953 coefficients. Aggregator did 1261 substitutions. Reduced MIP has 61749 rows, 11311 columns, and 244416 nonzeros. Presolve time = 4.46 sec. Clique table members: 10608. MIP emphasis: balance optimality and feasibility. MIP search method: dynamic search. Parallel mode: none, using 1 thread. Root relaxation solution time = 0.59 sec. Nodes Cuts/ Node Left Objective IInf Best Integer Best Node ItCnt Gap 0 0 -2928.2222 213 -2928.2222 1507 * 0+ 0 -2919.0000 -2928.2222 1507 0.32% 0 0 -2927.0000 74 -2919.0000 Cuts: 363 1602 0.27% * 0 0 integral 0 -2927.0000 Cuts: 41 1620 0.00% 0 0 cutoff -2927.0000 -2927.0000 1620 0.00% GUB cover cuts applied: 1 Clique cuts applied: 72 Implied bound cuts applied: 22 Zero-half cuts applied: 28 Gomory fractional cuts applied: 16 >>>>>>> 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 1610.0000. Tried aggregator 5 times. MIP Presolve eliminated 191503 rows and 35369 columns. MIP Presolve modified 23953 coefficients. Aggregator did 1258 substitutions. Reduced MIP has 61764 rows, 11323 columns, and 247371 nonzeros. Presolve time = 4.47 sec. Clique table members: 10583. MIP emphasis: balance optimality and feasibility. MIP search method: dynamic search. Parallel mode: none, using 1 thread. Root relaxation solution time = 10.22 sec. Nodes Cuts/ Node Left Objective IInf Best Integer Best Node ItCnt Gap 0 0 399.6572 692 1610.0000 399.6572 13694 75.18% 0 0 527.5000 26 1610.0000 Cuts: 479 13899 67.24% * 0 0 integral 0 531.0000 Cuts: 13 13906 0.00% 0 0 cutoff 531.0000 531.0000 13906 0.00% Elapsed time = 16.71 sec. (tree size = 0.00 MB, solutions = 2) GUB cover cuts applied: 1 Clique cuts applied: 215 Cover cuts applied: 3 Implied bound cuts applied: 52 Zero-half cuts applied: 31 Gomory fractional cuts applied: 4 >>>>>>> Objval = 531.000000 (int)531 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 2275.0000. Tried aggregator 5 times. Presolve has eliminated 190943 rows and 35150 columns... Aggregator has done 1206 substitutions... MIP Presolve eliminated 190943 rows and 35150 columns. MIP Presolve modified 23976 coefficients. Aggregator did 1206 substitutions. Reduced MIP has 62376 rows, 11594 columns, and 255553 nonzeros. Presolve time = 5.13 sec. Clique table members: 10414. MIP emphasis: balance optimality and feasibility. MIP search method: dynamic search. Parallel mode: none, using 1 thread. Root relaxation solution time = 12.67 sec. Nodes Cuts/ Node Left Objective IInf Best Integer Best Node ItCnt Gap 0 0 1793.5278 136 2275.0000 1793.5278 21004 21.16% 0 0 1908.0000 24 2275.0000 Cuts: 304 21810 16.13% 0 0 1927.5000 35 2275.0000 Cuts: 14 21827 15.27% * 0 0 integral 0 1943.0000 Cuts: 73 21874 0.00% 0 0 cutoff 1943.0000 1943.0000 21874 0.00% Elapsed time = 20.14 sec. (tree size = 0.00 MB, solutions = 2) GUB cover cuts applied: 1 Clique cuts applied: 178 Implied bound cuts applied: 39 Zero-half cuts applied: 17 Gomory fractional cuts applied: 8