[Help-glpk] PROBLEM HAS NO INTEGER FEASIBLE SOLUTION
From:
Paolo Tofoni
Subject:
[Help-glpk] PROBLEM HAS NO INTEGER FEASIBLE SOLUTION
Date:
Wed, 15 Aug 2012 20:01:12 +0200
Hi Guys, can you help me? I inserted in my model the following constraints:
s.t. k2 {(j,p,m) in V_TECNOLOGICI, (m,k) in FERMI }: inizio_fermo[m,k] >= start[j,p,m] - BigP * ( 1 - k1[j,p,m,k] );
s.t. k3 {(j,p,m) in V_TECNOLOGICI, (m,k) in FERMI}:
start[j,p,m] >= inizio_fermo[m,k] - BigP * k1[j,p,m,k];
where
var k1 {(j,p,m) in V_TECNOLOGICI , (m,k) in FERMI} binary; var start {V_TECNOLOGICI}; param inizio_fermo{FERMI} integer;
and I always obtain the "PROBLEM HAS NO INTEGER FEASIBLE SOLUTION" response.
If I try to drop the above constrains the model runs, if I try to drop individually the other constraints, leaving the above ones, the model doesn't run I don't get it why! Thanks a lot in advance