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Goal does not terminate with library(simplex) #95

Open andreaf96 opened 4 years ago

andreaf96 commented 4 years ago

Hi,

the following goal does not terminate with the latest version of SWI-prolog using the library simplex written by @triska.

gen_state(S0), constraint([1*k1]>=0,S0,S1), constraint([1*k2]>=0,S1,S2), constraint([1*n1]>=0,S2,S3), constraint([1*n2]>=0,S3,S4), constraint([1*k1,-1*k2]>=0,S4,S5), constraint([2*n1,-2*n2,-1*k1,1*k2]=3,S5,S6), constraint(integral(n1),S6,S7), constraint(integral(n2),S7,S8), minimize([1*k1,-1*k2],S8,S).

It terminates if we add only one of the two integrality constraints on n1 and n2. It does not terminate if we also add integrality constraints on k1 and k2.