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GCC Code Coverage Report

Directory:	.		Exec	Total	Coverage
File:	src/theory/quantifiers/sygus/sygus_eval_unfold.cpp	Lines:	172	183	94.0 %
Date:	2021-11-07	Branches:	366	918	39.9 %


/******************************************************************************
 * Top contributors (to current version):
 *   Andrew Reynolds, Mathias Preiner, Aina Niemetz
 *
 * This file is part of the cvc5 project.
 *
 * Copyright (c) 2009-2021 by the authors listed in the file AUTHORS
 * in the top-level source directory and their institutional affiliations.
 * All rights reserved.  See the file COPYING in the top-level source
 * directory for licensing information.
 * ****************************************************************************
 *
 * Implementation of sygus_eval_unfold.
 */

#include "theory/quantifiers/sygus/sygus_eval_unfold.h"

#include "expr/dtype_cons.h"
#include "expr/sygus_datatype.h"
#include "options/quantifiers_options.h"
#include "theory/datatypes/sygus_datatype_utils.h"
#include "theory/quantifiers/sygus/term_database_sygus.h"
#include "theory/rewriter.h"

using namespace std;
using namespace cvc5::kind;
using namespace cvc5::context;

namespace cvc5 {
namespace theory {
namespace quantifiers {

SygusEvalUnfold::SygusEvalUnfold(Env& env, TermDbSygus* tds)
    : EnvObj(env), d_tds(tds)
{
}

void SygusEvalUnfold::registerEvalTerm(Node n)
{
  Assert(options::sygusEvalUnfold());
  // is this a sygus evaluation function application?
  if (n.getKind() != DT_SYGUS_EVAL)
  {
    return;
  }
  if (d_eval_processed.find(n) != d_eval_processed.end())
  {
    return;
  }
  Trace("sygus-eval-unfold")
      << "SygusEvalUnfold: register eval term : " << n << std::endl;
  d_eval_processed.insert(n);
  TypeNode tn = n[0].getType();
  // since n[0] is an evaluation head, we know tn is a sygus datatype
  Assert(tn.isDatatype());
  const DType& dt = tn.getDType();
  Assert(dt.isSygus());
  if (n[0].getKind() == APPLY_CONSTRUCTOR)
  {
    // constructors should be unfolded and reduced already
    Assert(false);
    return;
  }
  // register this evaluation term with its head
  d_evals[n[0]].push_back(n);
  Node var_list = dt.getSygusVarList();
  d_eval_args[n[0]].push_back(std::vector<Node>());
  for (unsigned j = 1, size = n.getNumChildren(); j < size; j++)
  {
    d_eval_args[n[0]].back().push_back(n[j]);
  }
  Node a = TermDbSygus::getAnchor(n[0]);
  d_subterms[a].insert(n[0]);
}

void SygusEvalUnfold::registerModelValue(Node a,
                                         Node v,
                                         std::vector<Node>& terms,
                                         std::vector<Node>& vals,
                                         std::vector<Node>& exps)
{
  std::map<Node, std::unordered_set<Node> >::iterator its = d_subterms.find(a);
  if (its == d_subterms.end())
  {
    return;
  }
  NodeManager* nm = NodeManager::currentNM();
  SygusExplain* sy_exp = d_tds->getExplain();
  Trace("sygus-eval-unfold")
      << "SygusEvalUnfold: " << a << ", has " << its->second.size()
      << " registered subterms." << std::endl;
  for (const Node& n : its->second)
  {
    Trace("sygus-eval-unfold-debug") << "...process : " << n << std::endl;
    std::map<Node, std::vector<std::vector<Node> > >::iterator it =
        d_eval_args.find(n);
    if (it != d_eval_args.end() && !it->second.empty())
    {
      TNode at = a;
      TNode vt = v;
      Node vn = n.substitute(at, vt);
      vn = rewrite(vn);
      unsigned start = d_node_mv_args_proc[n][vn];
      // get explanation in terms of testers
      std::vector<Node> antec_exp;
      sy_exp->getExplanationForEquality(n, vn, antec_exp);
      Node antec =
          antec_exp.size() == 1 ? antec_exp[0] : nm->mkNode(AND, antec_exp);
      // Node antec = n.eqNode( vn );
      TypeNode tn = n.getType();
      // Check if the sygus type has any symbolic constructors. This will
      // impact how the unfolding is computed below.
      SygusTypeInfo& sti = d_tds->getTypeInfo(tn);
      bool hasSymCons = sti.hasSubtermSymbolicCons();
      // n occurs as an evaluation head, thus it has sygus datatype type
      Assert(tn.isDatatype());
      const DType& dt = tn.getDType();
      Assert(dt.isSygus());
      Trace("sygus-eval-unfold")
          << "SygusEvalUnfold: Register model value : " << vn << " for " << n
          << std::endl;
      unsigned curr_size = it->second.size();
      Trace("sygus-eval-unfold")
          << "...it has " << curr_size << " evaluations, already processed "
          << start << "." << std::endl;
      Node bTerm = d_tds->sygusToBuiltin(vn, tn);
      Trace("sygus-eval-unfold") << "Built-in term : " << bTerm << std::endl;
      std::vector<Node> vars;
      Node var_list = dt.getSygusVarList();
      for (const Node& var : var_list)
      {
        vars.push_back(var);
      }
      // evaluation children
      std::vector<Node> eval_children;
      eval_children.push_back(n);
      // for each evaluation
      for (unsigned i = start; i < curr_size; i++)
      {
        Node res;
        Node expn;
        // should we unfold?
        bool do_unfold = false;
        if (options::sygusEvalUnfoldBool())
        {
          Node bTermUse = bTerm;
          if (bTerm.getKind() == APPLY_UF)
          {
            // if the builtin term is non-beta-reduced application of lambda,
            // we look at the body of the lambda.
            Node bTermOp = bTerm.getOperator();
            if (bTermOp.getKind() == LAMBDA)
            {
              bTermUse = bTermOp[0];
            }
          }
          if (bTermUse.getKind() == ITE || bTermUse.getType().isBoolean())
          {
            do_unfold = true;
          }
        }
        if (do_unfold || hasSymCons)
        {
          // note that this is replicated for different values
          std::map<Node, Node> vtm;
          std::vector<Node> exp;
          vtm[n] = vn;
          eval_children.insert(
              eval_children.end(), it->second[i].begin(), it->second[i].end());
          Node eval_fun = nm->mkNode(DT_SYGUS_EVAL, eval_children);
          eval_children.resize(1);
          // If we explicitly asked to unfold, we use single step, otherwise
          // we use multi step.
          res = unfold(eval_fun, vtm, exp, true, !do_unfold);
          Trace("sygus-eval-unfold") << "Unfold returns " << res << std::endl;
          expn = exp.size() == 1 ? exp[0] : nm->mkNode(AND, exp);
        }
        else
        {
          EvalSygusInvarianceTest esit;
          eval_children.insert(
              eval_children.end(), it->second[i].begin(), it->second[i].end());
          Node conj = nm->mkNode(DT_SYGUS_EVAL, eval_children);
          eval_children[0] = vn;
          Node eval_fun = nm->mkNode(DT_SYGUS_EVAL, eval_children);
          res = d_tds->rewriteNode(eval_fun);
          Trace("sygus-eval-unfold")
              << "Evaluate with unfolding returns " << res << std::endl;
          esit.init(conj, n, res);
          eval_children.resize(1);
          eval_children[0] = n;

          // evaluate with minimal explanation
          std::vector<Node> mexp;
          sy_exp->getExplanationFor(n, vn, mexp, esit);
          Assert(!mexp.empty());
          expn = mexp.size() == 1 ? mexp[0] : nm->mkNode(AND, mexp);
        }
        Assert(!res.isNull());
        terms.push_back(d_evals[n][i]);
        vals.push_back(res);
        exps.push_back(expn);
        Trace("sygus-eval-unfold")
            << "Conclude : " << d_evals[n][i] << " == " << res << std::endl;
        Trace("sygus-eval-unfold") << "   from " << expn << std::endl;
      }
      d_node_mv_args_proc[n][vn] = curr_size;
    }
  }
}

Node SygusEvalUnfold::unfold(Node en,
                             std::map<Node, Node>& vtm,
                             std::vector<Node>& exp,
                             bool track_exp,
                             bool doRec)
{
  if (en.getKind() != DT_SYGUS_EVAL)
  {
    Assert(en.isConst());
    return en;
  }
  Trace("sygus-eval-unfold-debug")
      << "Unfold : " << en << ", track exp is " << track_exp << ", doRec is "
      << doRec << std::endl;
  Node ev = en[0];
  if (track_exp)
  {
    std::map<Node, Node>::iterator itv = vtm.find(en[0]);
    Assert(itv != vtm.end());
    if (itv != vtm.end())
    {
      ev = itv->second;
    }
    Assert(en[0].getType() == ev.getType());
    Assert(ev.isConst());
  }
  Trace("sygus-eval-unfold-debug")
      << "Unfold model value is : " << ev << std::endl;
  AlwaysAssert(ev.getKind() == APPLY_CONSTRUCTOR);
  std::vector<Node> args;
  for (unsigned i = 1, nchild = en.getNumChildren(); i < nchild; i++)
  {
    args.push_back(en[i]);
  }

  TypeNode headType = en[0].getType();
  NodeManager* nm = NodeManager::currentNM();
  const DType& dt = headType.getDType();
  unsigned i = datatypes::utils::indexOf(ev.getOperator());
  if (track_exp)
  {
    // explanation
    Node ee = nm->mkNode(APPLY_TESTER, dt[i].getTester(), en[0]);
    if (std::find(exp.begin(), exp.end(), ee) == exp.end())
    {
      exp.push_back(ee);
    }
  }
  // if we are a symbolic constructor, unfolding returns the subterm itself
  Node sop = dt[i].getSygusOp();
  if (sop.getAttribute(SygusAnyConstAttribute()))
  {
    Trace("sygus-eval-unfold-debug")
        << "...it is an any-constant constructor" << std::endl;
    Assert(dt[i].getNumArgs() == 1);
    // If the argument to evaluate is itself concrete, then we use its
    // argument; otherwise we return its selector.
    if (en[0].getKind() == APPLY_CONSTRUCTOR)
    {
      Trace("sygus-eval-unfold-debug")
          << "...return (from constructor) " << en[0][0] << std::endl;
      return en[0][0];
    }
    else
    {
      Node ret = nm->mkNode(
          APPLY_SELECTOR_TOTAL, dt[i].getSelectorInternal(headType, 0), en[0]);
      Trace("sygus-eval-unfold-debug")
          << "...return (from constructor) " << ret << std::endl;
      return ret;
    }
  }

  Assert(!dt.isParametric());
  std::map<int, Node> pre;
  for (unsigned j = 0, nargs = dt[i].getNumArgs(); j < nargs; j++)
  {
    std::vector<Node> cc;
    Node s;
    // get the j^th subfield of en
    if (en[0].getKind() == APPLY_CONSTRUCTOR)
    {
      // if it is a concrete constructor application, as an optimization,
      // just return the argument
      s = en[0][j];
    }
    else
    {
      s = nm->mkNode(
          APPLY_SELECTOR_TOTAL, dt[i].getSelectorInternal(headType, j), en[0]);
    }
    cc.push_back(s);
    if (track_exp)
    {
      // update vtm map
      vtm[s] = ev[j];
    }
    cc.insert(cc.end(), args.begin(), args.end());
    Node argj = nm->mkNode(DT_SYGUS_EVAL, cc);
    if (doRec)
    {
      Trace("sygus-eval-unfold-debug") << "Recurse on " << s << std::endl;
      // evaluate recursively
      argj = unfold(argj, vtm, exp, track_exp, doRec);
    }
    pre[j] = argj;
  }
  Node ret = d_tds->mkGeneric(dt, i, pre);
  // apply the appropriate substitution to ret
  ret = datatypes::utils::applySygusArgs(dt, sop, ret, args);
  Trace("sygus-eval-unfold-debug")
      << "Applied sygus args : " << ret << std::endl;
  // rewrite
  ret = rewrite(ret);
  Trace("sygus-eval-unfold-debug") << "Rewritten : " << ret << std::endl;
  return ret;
}

}  // namespace quantifiers
}  // namespace theory
}  // namespace cvc5


Generated by: GCOVR (Version 3.2)

Line	Exec	Source
1		/******************************************************************************
2		* Top contributors (to current version):
3		* Andrew Reynolds, Mathias Preiner, Aina Niemetz
4		*
5		* This file is part of the cvc5 project.
6		*
7		* Copyright (c) 2009-2021 by the authors listed in the file AUTHORS
8		* in the top-level source directory and their institutional affiliations.
9		* All rights reserved. See the file COPYING in the top-level source
10		* directory for licensing information.
11		* ****************************************************************************
12		*
13		* Implementation of sygus_eval_unfold.
14		*/
15
16		#include "theory/quantifiers/sygus/sygus_eval_unfold.h"
17
18		#include "expr/dtype_cons.h"
19		#include "expr/sygus_datatype.h"
20		#include "options/quantifiers_options.h"
21		#include "theory/datatypes/sygus_datatype_utils.h"
22		#include "theory/quantifiers/sygus/term_database_sygus.h"
23		#include "theory/rewriter.h"
24
25		using namespace std;
26		using namespace cvc5::kind;
27		using namespace cvc5::context;
28
29		namespace cvc5 {
30		namespace theory {
31		namespace quantifiers {
32
33	1900	SygusEvalUnfold::SygusEvalUnfold(Env& env, TermDbSygus* tds)
34	1900	: EnvObj(env), d_tds(tds)
35		{
36	1900	}
37
38	327019	void SygusEvalUnfold::registerEvalTerm(Node n)
39		{
40	327019	Assert(options::sygusEvalUnfold());
41		// is this a sygus evaluation function application?
42	327019	if (n.getKind() != DT_SYGUS_EVAL)
43		{
44	644356	return;
45		}
46	7160	if (d_eval_processed.find(n) != d_eval_processed.end())
47		{
48	4638	return;
49		}
50	5044	Trace("sygus-eval-unfold")
51	2522	<< "SygusEvalUnfold: register eval term : " << n << std::endl;
52	2522	d_eval_processed.insert(n);
53	5044	TypeNode tn = n[0].getType();
54		// since n[0] is an evaluation head, we know tn is a sygus datatype
55	2522	Assert(tn.isDatatype());
56	2522	const DType& dt = tn.getDType();
57	2522	Assert(dt.isSygus());
58	2522	if (n[0].getKind() == APPLY_CONSTRUCTOR)
59		{
60		// constructors should be unfolded and reduced already
61		Assert(false);
62		return;
63		}
64		// register this evaluation term with its head
65	2522	d_evals[n[0]].push_back(n);
66	5044	Node var_list = dt.getSygusVarList();
67	2522	d_eval_args[n[0]].push_back(std::vector<Node>());
68	9613	for (unsigned j = 1, size = n.getNumChildren(); j < size; j++)
69		{
70	7091	d_eval_args[n[0]].back().push_back(n[j]);
71		}
72	5044	Node a = TermDbSygus::getAnchor(n[0]);
73	2522	d_subterms[a].insert(n[0]);
74		}
75
76	10986	void SygusEvalUnfold::registerModelValue(Node a,
77		Node v,
78		std::vector<Node>& terms,
79		std::vector<Node>& vals,
80		std::vector<Node>& exps)
81		{
82	10986	std::map<Node, std::unordered_set<Node> >::iterator its = d_subterms.find(a);
83	10986	if (its == d_subterms.end())
84		{
85	3452	return;
86		}
87	7534	NodeManager* nm = NodeManager::currentNM();
88	7534	SygusExplain* sy_exp = d_tds->getExplain();
89	15068	Trace("sygus-eval-unfold")
90	15068	<< "SygusEvalUnfold: " << a << ", has " << its->second.size()
91	7534	<< " registered subterms." << std::endl;
92	26154	for (const Node& n : its->second)
93		{
94	18620	Trace("sygus-eval-unfold-debug") << "...process : " << n << std::endl;
95		std::map<Node, std::vector<std::vector<Node> > >::iterator it =
96	18620	d_eval_args.find(n);
97	18620	if (it != d_eval_args.end() && !it->second.empty())
98		{
99	37240	TNode at = a;
100	37240	TNode vt = v;
101	37240	Node vn = n.substitute(at, vt);
102	18620	vn = rewrite(vn);
103	18620	unsigned start = d_node_mv_args_proc[n][vn];
104		// get explanation in terms of testers
105	37240	std::vector<Node> antec_exp;
106	18620	sy_exp->getExplanationForEquality(n, vn, antec_exp);
107		Node antec =
108	37240	antec_exp.size() == 1 ? antec_exp[0] : nm->mkNode(AND, antec_exp);
109		// Node antec = n.eqNode( vn );
110	37240	TypeNode tn = n.getType();
111		// Check if the sygus type has any symbolic constructors. This will
112		// impact how the unfolding is computed below.
113	18620	SygusTypeInfo& sti = d_tds->getTypeInfo(tn);
114	18620	bool hasSymCons = sti.hasSubtermSymbolicCons();
115		// n occurs as an evaluation head, thus it has sygus datatype type
116	18620	Assert(tn.isDatatype());
117	18620	const DType& dt = tn.getDType();
118	18620	Assert(dt.isSygus());
119	37240	Trace("sygus-eval-unfold")
120	18620	<< "SygusEvalUnfold: Register model value : " << vn << " for " << n
121	18620	<< std::endl;
122	18620	unsigned curr_size = it->second.size();
123	37240	Trace("sygus-eval-unfold")
124	18620	<< "...it has " << curr_size << " evaluations, already processed "
125	18620	<< start << "." << std::endl;
126	37240	Node bTerm = d_tds->sygusToBuiltin(vn, tn);
127	18620	Trace("sygus-eval-unfold") << "Built-in term : " << bTerm << std::endl;
128	37240	std::vector<Node> vars;
129	37240	Node var_list = dt.getSygusVarList();
130	73023	for (const Node& var : var_list)
131		{
132	54403	vars.push_back(var);
133		}
134		// evaluation children
135	37240	std::vector<Node> eval_children;
136	18620	eval_children.push_back(n);
137		// for each evaluation
138	44704	for (unsigned i = start; i < curr_size; i++)
139		{
140	52168	Node res;
141	52168	Node expn;
142		// should we unfold?
143	26084	bool do_unfold = false;
144	26084	if (options::sygusEvalUnfoldBool())
145		{
146	52168	Node bTermUse = bTerm;
147	26084	if (bTerm.getKind() == APPLY_UF)
148		{
149		// if the builtin term is non-beta-reduced application of lambda,
150		// we look at the body of the lambda.
151		Node bTermOp = bTerm.getOperator();
152		if (bTermOp.getKind() == LAMBDA)
153		{
154		bTermUse = bTermOp[0];
155		}
156		}
157	26084	if (bTermUse.getKind() == ITE \|\| bTermUse.getType().isBoolean())
158		{
159	7095	do_unfold = true;
160		}
161		}
162	26084	if (do_unfold \|\| hasSymCons)
163		{
164		// note that this is replicated for different values
165	16334	std::map<Node, Node> vtm;
166	16334	std::vector<Node> exp;
167	8167	vtm[n] = vn;
168	8167	eval_children.insert(
169	16334	eval_children.end(), it->second[i].begin(), it->second[i].end());
170	16334	Node eval_fun = nm->mkNode(DT_SYGUS_EVAL, eval_children);
171	8167	eval_children.resize(1);
172		// If we explicitly asked to unfold, we use single step, otherwise
173		// we use multi step.
174	8167	res = unfold(eval_fun, vtm, exp, true, !do_unfold);
175	8167	Trace("sygus-eval-unfold") << "Unfold returns " << res << std::endl;
176	16334	expn = exp.size() == 1 ? exp[0] : nm->mkNode(AND, exp);
177		}
178		else
179		{
180	35834	EvalSygusInvarianceTest esit;
181	17917	eval_children.insert(
182	35834	eval_children.end(), it->second[i].begin(), it->second[i].end());
183	35834	Node conj = nm->mkNode(DT_SYGUS_EVAL, eval_children);
184	17917	eval_children[0] = vn;
185	35834	Node eval_fun = nm->mkNode(DT_SYGUS_EVAL, eval_children);
186	17917	res = d_tds->rewriteNode(eval_fun);
187	35834	Trace("sygus-eval-unfold")
188	17917	<< "Evaluate with unfolding returns " << res << std::endl;
189	17917	esit.init(conj, n, res);
190	17917	eval_children.resize(1);
191	17917	eval_children[0] = n;
192
193		// evaluate with minimal explanation
194	35834	std::vector<Node> mexp;
195	17917	sy_exp->getExplanationFor(n, vn, mexp, esit);
196	17917	Assert(!mexp.empty());
197	17917	expn = mexp.size() == 1 ? mexp[0] : nm->mkNode(AND, mexp);
198		}
199	26084	Assert(!res.isNull());
200	26084	terms.push_back(d_evals[n][i]);
201	26084	vals.push_back(res);
202	26084	exps.push_back(expn);
203	52168	Trace("sygus-eval-unfold")
204	26084	<< "Conclude : " << d_evals[n][i] << " == " << res << std::endl;
205	26084	Trace("sygus-eval-unfold") << " from " << expn << std::endl;
206		}
207	18620	d_node_mv_args_proc[n][vn] = curr_size;
208		}
209		}
210		}
211
212	10727	Node SygusEvalUnfold::unfold(Node en,
213		std::map<Node, Node>& vtm,
214		std::vector<Node>& exp,
215		bool track_exp,
216		bool doRec)
217		{
218	10727	if (en.getKind() != DT_SYGUS_EVAL)
219		{
220		Assert(en.isConst());
221		return en;
222		}
223	21454	Trace("sygus-eval-unfold-debug")
224	10727	<< "Unfold : " << en << ", track exp is " << track_exp << ", doRec is "
225	10727	<< doRec << std::endl;
226	21454	Node ev = en[0];
227	10727	if (track_exp)
228		{
229	10727	std::map<Node, Node>::iterator itv = vtm.find(en[0]);
230	10727	Assert(itv != vtm.end());
231	10727	if (itv != vtm.end())
232		{
233	10727	ev = itv->second;
234		}
235	10727	Assert(en[0].getType() == ev.getType());
236	10727	Assert(ev.isConst());
237		}
238	21454	Trace("sygus-eval-unfold-debug")
239	10727	<< "Unfold model value is : " << ev << std::endl;
240	10727	AlwaysAssert(ev.getKind() == APPLY_CONSTRUCTOR);
241	21454	std::vector<Node> args;
242	35693	for (unsigned i = 1, nchild = en.getNumChildren(); i < nchild; i++)
243		{
244	24966	args.push_back(en[i]);
245		}
246
247	21454	TypeNode headType = en[0].getType();
248	10727	NodeManager* nm = NodeManager::currentNM();
249	10727	const DType& dt = headType.getDType();
250	10727	unsigned i = datatypes::utils::indexOf(ev.getOperator());
251	10727	if (track_exp)
252		{
253		// explanation
254	21454	Node ee = nm->mkNode(APPLY_TESTER, dt[i].getTester(), en[0]);
255	10727	if (std::find(exp.begin(), exp.end(), ee) == exp.end())
256		{
257	10727	exp.push_back(ee);
258		}
259		}
260		// if we are a symbolic constructor, unfolding returns the subterm itself
261	21454	Node sop = dt[i].getSygusOp();
262	10727	if (sop.getAttribute(SygusAnyConstAttribute()))
263		{
264	1980	Trace("sygus-eval-unfold-debug")
265	990	<< "...it is an any-constant constructor" << std::endl;
266	990	Assert(dt[i].getNumArgs() == 1);
267		// If the argument to evaluate is itself concrete, then we use its
268		// argument; otherwise we return its selector.
269	990	if (en[0].getKind() == APPLY_CONSTRUCTOR)
270		{
271		Trace("sygus-eval-unfold-debug")
272		<< "...return (from constructor) " << en[0][0] << std::endl;
273		return en[0][0];
274		}
275		else
276		{
277		Node ret = nm->mkNode(
278	1980	APPLY_SELECTOR_TOTAL, dt[i].getSelectorInternal(headType, 0), en[0]);
279	1980	Trace("sygus-eval-unfold-debug")
280	990	<< "...return (from constructor) " << ret << std::endl;
281	990	return ret;
282		}
283		}
284
285	9737	Assert(!dt.isParametric());
286	19474	std::map<int, Node> pre;
287	26634	for (unsigned j = 0, nargs = dt[i].getNumArgs(); j < nargs; j++)
288		{
289	33794	std::vector<Node> cc;
290	33794	Node s;
291		// get the j^th subfield of en
292	16897	if (en[0].getKind() == APPLY_CONSTRUCTOR)
293		{
294		// if it is a concrete constructor application, as an optimization,
295		// just return the argument
296		s = en[0][j];
297		}
298		else
299		{
300	50691	s = nm->mkNode(
301	33794	APPLY_SELECTOR_TOTAL, dt[i].getSelectorInternal(headType, j), en[0]);
302		}
303	16897	cc.push_back(s);
304	16897	if (track_exp)
305		{
306		// update vtm map
307	16897	vtm[s] = ev[j];
308		}
309	16897	cc.insert(cc.end(), args.begin(), args.end());
310	33794	Node argj = nm->mkNode(DT_SYGUS_EVAL, cc);
311	16897	if (doRec)
312		{
313	2560	Trace("sygus-eval-unfold-debug") << "Recurse on " << s << std::endl;
314		// evaluate recursively
315	2560	argj = unfold(argj, vtm, exp, track_exp, doRec);
316		}
317	16897	pre[j] = argj;
318		}
319	19474	Node ret = d_tds->mkGeneric(dt, i, pre);
320		// apply the appropriate substitution to ret
321	9737	ret = datatypes::utils::applySygusArgs(dt, sop, ret, args);
322	19474	Trace("sygus-eval-unfold-debug")
323	9737	<< "Applied sygus args : " << ret << std::endl;
324		// rewrite
325	9737	ret = rewrite(ret);
326	9737	Trace("sygus-eval-unfold-debug") << "Rewritten : " << ret << std::endl;
327	9737	return ret;
328		}
329
330		} // namespace quantifiers
331		} // namespace theory
332	31137	} // namespace cvc5