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DoC: reuse code in unit tests from relation checker
Signed-off-by: Nuno Lopes <a-nlopes@microsoft.com>
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@ -476,52 +476,13 @@ public:
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scoped_ptr<datalog::relation_transformer_fn> rename;
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rename = p.mk_rename_fn(*t1, cycle.size(), cycle.c_ptr());
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relation_base* t = (*rename)(*t1);
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verify_permutation(*t1,*t, cycle);
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cr.verify_permutation(*t1,*t, cycle);
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t1->display(std::cout); std::cout << "\n";
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t->display(std::cout); std::cout << "\n";
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t->deallocate();
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t1->deallocate();
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}
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void verify_permutation(relation_base const& src, relation_base const& dst,
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unsigned_vector const& cycle) {
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unsigned_vector perm;
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relation_signature const& sig1 = src.get_signature();
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relation_signature const& sig2 = dst.get_signature();
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for (unsigned i = 0; i < sig1.size(); ++i) {
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perm.push_back(i);
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}
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for (unsigned i = 0; i < cycle.size(); ++i) {
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unsigned j = (i + 1)%cycle.size();
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unsigned col1 = cycle[i];
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unsigned col2 = cycle[j];
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perm[col2] = col1;
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}
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for (unsigned i = 0; i < perm.size(); ++i) {
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SASSERT(sig2[perm[i]] == sig1[i]);
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}
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expr_ref_vector sub(m);
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for (unsigned i = 0; i < perm.size(); ++i) {
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sub.push_back(m.mk_var(perm[i], sig1[i]));
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}
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var_subst subst(m, false);
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expr_ref fml1(m), fml2(m);
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src.to_formula(fml1);
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dst.to_formula(fml2);
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subst(fml1, sub.size(), sub.c_ptr(), fml1);
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expr_ref_vector vars(m);
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for (unsigned i = 0; i < sig2.size(); ++i) {
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std::stringstream strm;
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strm << "x" << i;
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vars.push_back(m.mk_const(symbol(strm.str().c_str()), sig2[i]));
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}
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subst(fml1, vars.size(), vars.c_ptr(), fml1);
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subst(fml2, vars.size(), vars.c_ptr(), fml2);
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check_equiv(fml1, fml2);
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}
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/*
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The filter_by_negation postcondition:
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filter_by_negation(tgt, neg, columns in tgt: c1,...,cN,
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@ -733,51 +694,9 @@ public:
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void apply_filter_project(udoc_relation& t, unsigned_vector const& rm, app* cond) {
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scoped_ptr<datalog::relation_transformer_fn> rt;
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rt = p.mk_filter_interpreted_and_project_fn(t, cond, rm.size(), rm.c_ptr());
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udoc_relation* full = mk_full(t.get_signature());
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rel_union union_fn = p.mk_union_fn(t, *full, 0);
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(*union_fn)(t, *full, 0);
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datalog::relation_base* result = (*rt)(t);
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for (unsigned i = 0; i < rm.size(); ++i) {
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std::cout << rm[i] << " ";
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}
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std::cout << mk_pp(cond, m) << "\n";
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t.display(std::cout);
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result->display(std::cout);
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cr.verify_filter_project(t, *result, cond, rm);
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result->deallocate();
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full->deallocate();
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}
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void verify_filter_project(udoc_relation const& r, unsigned_vector const& rm, app* cond) {
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expr_ref fml(m), cfml(m);
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r.to_formula(fml);
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cfml = cond;
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relation_signature const& sig = r.get_signature();
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expr_ref_vector vars(m);
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for (unsigned i = 0, j = 0, k = 0; i < sig.size(); ++i) {
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if (j < rm.size() && rm[j] == i) {
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project_var(i, sig[i], cfml);
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++j;
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}
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else {
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vars.push_back(m.mk_var(k, sig[i]));
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++k;
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}
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}
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check_equiv(fml, cfml);
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}
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void check_equiv(expr* fml1, expr* fml2) {
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TRACE("doc", tout << mk_pp(fml1, m) << "\n";
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tout << mk_pp(fml2, m) << "\n";);
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smt_params fp;
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smt::kernel solver(m, fp);
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expr_ref tmp(m);
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tmp = m.mk_not(m.mk_eq(fml1, fml2));
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solver.assert_expr(tmp);
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lbool res = solver.check();
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SASSERT(res == l_false);
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}
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void project_var(unsigned i, sort* s, expr_ref& fml) {
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