[SCIP] Missing variable

[Mahdi Noorizadegan]

Hi Scipers,

I am writing a branch and price model using VRP example as template.

I have two vectors of variables and two constraints defined in the master problem and new variables are added in the pricer.
I can see both variables in the lp file created in the master problem but some variables are missing in the lp file created in pricer.

Below are the definitions for variables (partly lost in the pricer) and the constraint.

What could be the problem and how can I fix it?

I would appreciate it if you could help me to fix this.

Best,
Mahdi

vector<vector<SCIP_VAR* > >q( n );
    for (int l=0; l<n; ++l) {
        q[l].resize(n_d);
        i
        for (int d=0; d<n_d; ++d) {
            SCIP_VAR* var;
           
            (void) SCIPsnprintf(var_name, 255, "q_%d_%d”, l,d);
            
            SCIP_CALL( SCIPcreateVar(scip,
                                     &var,                   // returns new index
                                     var_name,               // name
                                     0.0,                    // lower bound
                                     1.0,                    // upper bound
                                     0,                     // objective
                                     SCIP_VARTYPE_INTEGER,   // variable type
                                     true,                   // initial
                                     false,                  // forget the rest ...
                                     NULL, NULL, NULL, NULL, NULL) );
            SCIP_CALL( SCIPaddVar(scip, var) );
            q[l][d] = var;

        }
    }


 vector<vector<SCIP_CONS*> > AR(n);
    for (int l = 0; l < n; ++l)
    {
        ActivityRoom1[l].resize(n_d  );
        
        for (int d = 0; d < n_d; ++d)
        {
            SCIP_CONS* con;
            (void) SCIPsnprintf(con_name, 255, “AR%d_%d", l,d);
            
            
            SCIP_CALL( SCIPcreateConsLinear(scip, &con, con_name, 0, 0, 0,
                                            -SCIPinfinity(scip),                    /* lhs */
                                            0,     /* rhs */
                                            true,                   /* initial */
                                            false,                  /* separate */
                                            true,                   /* enforce */
                                            true,                   /* check */
                                            true,                   /* propagate */
                                            false,                  /* local */
                                            true,                   /* modifiable */
                                            false,                  /* dynamic */
                                            false,                  /* removable */
                                            false) );               /* stickingatnode */
            SCIP_CALL( SCIPaddCons(scip, con) );
            AR[l][d] = con;
           
                     SCIP_CALL( SCIPaddCoefLinear(scip, con, q[l][d] , -1.0) );
                  }
    
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