Welcome to IBM(R) ILOG(R) CPLEX(R) Interactive Optimizer 12.4.0.0 with Simplex, Mixed Integer & Barrier Optimizers 5725-A06 5725-A29 5724-Y48 5724-Y49 5724-Y54 5724-Y55 Copyright IBM Corp. 1988, 2011. All Rights Reserved. Type 'help' for a list of available commands. Type 'help' followed by a command name for more information on commands. CPLEX> Selected objective sense: MINIMIZE Selected objective name: OBJ Selected RHS name: RHS1 Selected bound name: BND1 Problem 'in_i.mps.gz' read. Read time = 0.13 sec. CPLEX> Available MIP parameters: cuts set types of cuts used during mixed integer optimization display set level of mixed integer node display interval set interval for printing mixed integer node display limits set limits for mixed integer optimization ordertype set type of generated priority order polishafter set starting conditions for solution polishing pool set solution pool characteristics strategy set strategy for mixed integer optimization tolerances set tolerances for mixed integer optimization MIP parameter to set: Available mixed integer limits: aggforcut set constraint aggregation limit for cut generation auxrootthreads set number of threads to use for auxiliary root tasks cutpasses set number of cutting plane passes cutsfactor set rows multiplier factor to limit cuts eachcutlimit set limit on number of cuts for each type per pass gomorycand set candidate limit for generating Gomory fractional cuts gomorypass set pass limit for generating Gomory fractional cuts nodes set branch and cut node limit polishtime set time limit for polishing best solution populate set solutions limit for each populate call probetime set time limit for probing repairtries set number of times to try repair heuristic solutions set mixed integer solutions limit strongcand set strong branching candidate limit strongit set strong branching iteration limit submipnodelim set sub-MIP node limit treememory set upper limit on size of tree in megabytes Mixed integer limit to set: Present value for mixed integer solutions limit: 9223372036800000000 New value for mixed integer solutions limit: New value for mixed integer solutions limit: 1 CPLEX> Present value for time limit in seconds: 1e+75 New value for time limit in seconds: New value for time limit in seconds: 3600 CPLEX> Tried aggregator 3 times. MIP Presolve eliminated 29916 rows and 17928 columns. MIP Presolve modified 48166 coefficients. Aggregator did 53 substitutions. Reduced MIP has 15293 rows, 7795 columns, and 69290 nonzeros. Reduced MIP has 7613 binaries, 182 generals, 0 SOSs, and 0 indicators. Probing fixed 55 vars, tightened 0 bounds. Probing time = 0.21 sec. Tried aggregator 2 times. MIP Presolve eliminated 2450 rows and 1467 columns. MIP Presolve modified 2775 coefficients. Aggregator did 2 substitutions. Reduced MIP has 12841 rows, 6326 columns, and 62244 nonzeros. Reduced MIP has 6150 binaries, 176 generals, 0 SOSs, and 0 indicators. Presolve time = 0.50 sec. Probing fixed 8 vars, tightened 0 bounds. Probing time = 0.08 sec. Clique table members: 51090. MIP emphasis: balance optimality and feasibility. MIP search method: dynamic search. Parallel mode: deterministic, using up to 4 threads. Root relaxation solution time = 0.16 sec. Nodes Cuts/ Node Left Objective IInf Best Integer Best Bound ItCnt Gap 0 0 0.0000 440 0.0000 1731 0 0 0.0000 840 Cuts: 2883 3934 0 0 0.0000 367 Cuts: 591 4697 0 0 0.0000 368 Cuts: 796 5521 0 2 0.0000 368 0.0000 5521 Elapsed real time = 3.60 sec. (tree size = 0.01 MB, solutions = 0) 8 10 0.0000 357 0.0000 6426 60 62 0.0000 164 0.0000 8775 150 146 0.0000 97 0.0000 10183 239 217 0.0000 67 0.0000 11849 352 310 0.0000 92 0.0000 15583 436 372 0.0000 87 0.0000 18095 565 462 0.0000 54 0.0000 19510 739 554 0.0000 29 0.0000 21364 960 571 0.0000 41 0.0000 23412 1655 784 0.0000 12 0.0000 30257 Elapsed real time = 7.26 sec. (tree size = 4.81 MB, solutions = 0) 2700 488 0.0000 39 0.0000 37786 3558 634 0.0000 32 0.0000 45545 4347 662 0.0000 49 0.0000 53297 4719 684 0.0000 129 0.0000 66579 4837 733 0.0000 66 0.0000 69783 4979 780 0.0000 49 0.0000 73580 5391 778 0.0000 52 0.0000 84302 5943 624 0.0000 40 0.0000 90929 * 6647 718 integral 0 0.0000 0.0000 97990 0.00% Clique cuts applied: 300 Cover cuts applied: 23 Implied bound cuts applied: 57 Flow cuts applied: 2 Mixed integer rounding cuts applied: 168 Zero-half cuts applied: 114 Gomory fractional cuts applied: 22 Root node processing (before b&c): Real time = 3.09 Parallel b&c, 4 threads: Real time = 20.79 Sync time (average) = 0.02 Wait time (average) = 0.00 ------- Total (root+branch&cut) = 23.87 sec. Solution pool: 2 solutions saved. MIP - Integer optimal solution: Objective = 0.0000000000e+00 Solution time = 24.38 sec. Iterations = 98445 Nodes = 6702 Deterministic time = 23950.00 ticks (982.36 ticks/sec) CPLEX> 66.34user 0.14system 0:24.51elapsed 271%CPU (0avgtext+0avgdata 999792maxresident)k 0inputs+72outputs (0major+71437minor)pagefaults 0swaps