Hi everyone.
Recently I am working on a scheduling problem using Constraint programming (CP) in OPL. In the log file, 39 solutions are found but finally it shows no solution available. The log data is shown below.
Can anyone can help to explain why? Thanks a lot.
! ----------------------------------------------------------------------------
! Search terminated by limit,
39 solutions found. ! Best objective : 315.935
! Number of branches : 5,056,241
! Number of fails : 1,809,900
! Total memory usage : 238.2 MB (235.1 MB CP Optimizer + 3.2 MB Concert)
! Time spent in solve : 180.22s (180.17s engine + 0.04s extraction)
! Search speed (br. / s) : 28,062.3
! ----------------------------------------------------------------------------
No solution available, cannot process.END
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HUI ZHAO
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#DecisionOptimization