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https://github.com/Z3Prover/z3
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Eliminated unused variables
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@ -335,43 +335,13 @@ bool bvarray2uf_rewriter_cfg::reduce_quantifier(quantifier * old_q,
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expr * const * new_no_patterns,
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expr_ref & result,
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proof_ref & result_pr) {
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unsigned curr_sz = m_bindings.size();
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SASSERT(old_q->get_num_decls() <= curr_sz);
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unsigned num_decls = old_q->get_num_decls();
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unsigned old_sz = curr_sz - num_decls;
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string_buffer<> name_buffer;
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ptr_buffer<sort> new_decl_sorts;
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sbuffer<symbol> new_decl_names;
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for (unsigned i = 0; i < num_decls; i++) {
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symbol const & n = old_q->get_decl_name(i);
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sort * s = old_q->get_decl_sort(i);
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NOT_IMPLEMENTED_YET();
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}
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result = m().mk_quantifier(old_q->is_forall(), new_decl_sorts.size(), new_decl_sorts.c_ptr(), new_decl_names.c_ptr(),
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new_body, old_q->get_weight(), old_q->get_qid(), old_q->get_skid(),
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old_q->get_num_patterns(), new_patterns, old_q->get_num_no_patterns(), new_no_patterns);
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result_pr = 0;
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m_bindings.shrink(old_sz);
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TRACE("bvarray2uf_rw_q", tout << "reduce_quantifier[" << old_q->get_depth() << "]: " <<
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mk_ismt2_pp(old_q->get_expr(), m()) << std::endl <<
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" new body: " << mk_ismt2_pp(new_body, m()) << std::endl;
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tout << "result = " << mk_ismt2_pp(result, m()) << std::endl;);
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NOT_IMPLEMENTED_YET();
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return true;
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}
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bool bvarray2uf_rewriter_cfg::reduce_var(var * t, expr_ref & result, proof_ref & result_pr) {
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if (t->get_idx() >= m_bindings.size())
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return false;
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expr_ref new_exp(m());
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sort * s = t->get_sort();
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NOT_IMPLEMENTED_YET();
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result = new_exp;
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result_pr = 0;
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TRACE("bvarray2uf_rw_q", tout << "reduce_var: " << mk_ismt2_pp(t, m()) << " -> " << mk_ismt2_pp(result, m()) << std::endl;);
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return true;
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}
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@ -90,10 +90,8 @@ class elim_small_bv_tactic : public tactic {
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// (VAR 0) is in the first position of substitution; (VAR num_decls-1) is in the last position.
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for (unsigned i = 0; i < max_var_idx_p1; i++) {
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sort * s = uv.get(i);
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for (unsigned i = 0; i < max_var_idx_p1; i++)
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substitution.push_back(0);
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}
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// (VAR num_decls) ... (VAR num_decls+sz-1); are in positions num_decls .. num_decls+sz-1
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