InterpolationContext.java

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package com.microsoft.z3;

import com.microsoft.z3.enumerations.Z3_lbool;

import java.util.Map;

public class InterpolationContext extends Context
{
    public static InterpolationContext mkContext()
    {
        long m_ctx;
        synchronized(creation_lock) {
            m_ctx = Native.mkInterpolationContext(0);
        }
        return new InterpolationContext(m_ctx);
    }

    public static InterpolationContext mkContext(Map<String, String> settings)
    { 
        long m_ctx;
        synchronized(creation_lock) {
            long cfg = Native.mkConfig();
            for (Map.Entry<String, String> kv : settings.entrySet())
                Native.setParamValue(cfg, kv.getKey(), kv.getValue());
            m_ctx = Native.mkInterpolationContext(cfg);
            Native.delConfig(cfg);
        }
        return new InterpolationContext(m_ctx);
    }

    private InterpolationContext(long m_ctx) {
        super(m_ctx);
    }

    public BoolExpr MkInterpolant(BoolExpr a)
    {
        checkContextMatch(a);        
        return new BoolExpr(this, Native.mkInterpolant(nCtx(), a.getNativeObject()));
    }

    public BoolExpr[] GetInterpolant(Expr pf, Expr pat, Params p)
    {
        checkContextMatch(pf);
        checkContextMatch(pat);
        checkContextMatch(p);

        ASTVector seq = new ASTVector(this, Native.getInterpolant(nCtx(), pf.getNativeObject(), pat.getNativeObject(), p.getNativeObject()));
        return seq.ToBoolExprArray();
    }

    public class ComputeInterpolantResult 
    {
        public Z3_lbool status = Z3_lbool.Z3_L_UNDEF;
        public BoolExpr[] interp = null;
        public Model model = null;
    };
    
    public ComputeInterpolantResult ComputeInterpolant(Expr pat, Params p)
    {
        checkContextMatch(pat);
        checkContextMatch(p);

        ComputeInterpolantResult res = new ComputeInterpolantResult();
        Native.LongPtr n_i = new Native.LongPtr();
        Native.LongPtr n_m = new Native.LongPtr();
        res.status = Z3_lbool.fromInt(Native.computeInterpolant(nCtx(), pat.getNativeObject(), p.getNativeObject(), n_i, n_m));        
        if (res.status == Z3_lbool.Z3_L_FALSE)
            res.interp = (new ASTVector(this, n_i.value)).ToBoolExprArray();
        if (res.status == Z3_lbool.Z3_L_TRUE) 
            res.model = new Model(this, n_m.value);
        return res;
    }

    public String InterpolationProfile()
    {
        return Native.interpolationProfile(nCtx());
    }

    public class CheckInterpolantResult
    {
        public int return_value = 0;
        public String error = null;
    }
    
    public CheckInterpolantResult CheckInterpolant(Expr[] cnsts, int[] parents, BoolExpr[] interps, String error, Expr[] theory)
    {
        CheckInterpolantResult res = new CheckInterpolantResult();
        Native.StringPtr n_err_str = new Native.StringPtr();
        res.return_value = Native.checkInterpolant(nCtx(),
                                        cnsts.length,
                                        Expr.arrayToNative(cnsts),
                                        parents,
                                        Expr.arrayToNative(interps),
                                        n_err_str,
                                        theory.length,
                                        Expr.arrayToNative(theory));
        res.error = n_err_str.value;
        return res;
    }

    public class ReadInterpolationProblemResult 
    {
        public int return_value = 0;
        public Expr[] cnsts;
        public int[] parents;
        public String error;
        public Expr[] theory;
    };
    
    public ReadInterpolationProblemResult ReadInterpolationProblem(String filename, Expr[] cnsts, int[] parents, String error, Expr[] theory)
    {
        ReadInterpolationProblemResult res = new ReadInterpolationProblemResult();
        
        Native.IntPtr n_num = new Native.IntPtr();
        Native.IntPtr n_num_theory = new Native.IntPtr();
        Native.ObjArrayPtr n_cnsts = new Native.ObjArrayPtr();
        Native.UIntArrayPtr n_parents = new Native.UIntArrayPtr();
        Native.ObjArrayPtr n_theory = new Native.ObjArrayPtr();
        Native.StringPtr n_err_str = new Native.StringPtr();
        res.return_value = Native.readInterpolationProblem(nCtx(), n_num, n_cnsts, n_parents, filename, n_err_str, n_num_theory, n_theory);
        int num = n_num.value;
        int num_theory = n_num_theory.value;
        res.error = n_err_str.value;
        res.cnsts = new Expr[num];
        res.parents = new int[num];
        theory = new Expr[num_theory];
        for (int i = 0; i < num; i++)
        {
            res.cnsts[i] = Expr.create(this, n_cnsts.value[i]);
            res.parents[i] = n_parents.value[i];
        }
        for (int i = 0; i < num_theory; i++)
            res.theory[i] = Expr.create(this, n_theory.value[i]);
        return res;
    }
    
    public void WriteInterpolationProblem(String filename, Expr[] cnsts, int[] parents, String error, Expr[] theory)
    {
        Native.writeInterpolationProblem(nCtx(), cnsts.length, Expr.arrayToNative(cnsts), parents, filename, theory.length, Expr.arrayToNative(theory));     
    }
}