UFBV tactic fixed and cleanup.

Signed-off-by: Christoph M. Wintersteiger <cwinter@microsoft.com>

src/tactic/ufbv/quasi_macros_tactic.cpp

@@ -0,0 +1,179 @@
+/*++
+Copyright (c) 2012 Microsoft Corporation
+
+Module Name:
+
+    quasi_macros_tactic.cpp
+
+Abstract:
+
+    Quasi-Macros
+
+Author:
+
+    Christoph (cwinter) 2012-10-26
+
+Notes:
+
+--*/
+#include"tactical.h"
+#include"simplifier.h"
+#include"basic_simplifier_plugin.h"
+#include"arith_simplifier_plugin.h"
+#include"bv_simplifier_plugin.h"
+#include"macro_manager.h"
+#include"macro_finder.h"
+#include"extension_model_converter.h"
+#include"quasi_macros.h"
+#include"quasi_macros_tactic.h"
+
+class quasi_macros_tactic : public tactic {
+
+    struct imp {
+        ast_manager & m_manager;
+        bool m_cancel;
+
+        imp(ast_manager & m, params_ref const & p) : m_manager(m),m_cancel(false) {
+            updt_params(p);
+        }
+        
+        ast_manager & m() const { return m_manager; }
+        
+        void set_cancel(bool f) {
+            m_cancel = f;
+        }
+        
+        void operator()(goal_ref const & g, 
+                        goal_ref_buffer & result, 
+                        model_converter_ref & mc, 
+                        proof_converter_ref & pc,
+                        expr_dependency_ref & core) {
+            SASSERT(g->is_well_sorted());
+            mc = 0; pc = 0; core = 0;
+            tactic_report report("quasi-macros", *g);
+            fail_if_unsat_core_generation("quasi-macros", g);
+
+            bool produce_proofs = g->proofs_enabled();
+            bool produce_models = g->models_enabled();
+            
+            simplifier simp(m_manager);
+            basic_simplifier_plugin * bsimp = alloc(basic_simplifier_plugin, m_manager);
+            bsimp->set_eliminate_and(true);
+            simp.register_plugin(bsimp);
+            arith_simplifier_params a_params;
+            arith_simplifier_plugin * asimp = alloc(arith_simplifier_plugin, m_manager, *bsimp, a_params);
+            simp.register_plugin(asimp);
+            bv_simplifier_params bv_params;
+            bv_simplifier_plugin * bvsimp = alloc(bv_simplifier_plugin, m_manager, *bsimp, bv_params);
+            simp.register_plugin(bvsimp);
+                
+            macro_manager mm(m_manager, simp);
+            quasi_macros qm(m_manager, mm, *bsimp, simp);
+            bool more = true;
+        
+            expr_ref_vector forms(m_manager), new_forms(m_manager);
+            proof_ref_vector proofs(m_manager), new_proofs(m_manager);
+
+            unsigned size = g->size();
+            for (unsigned i = 0; i < size; i++) {
+                forms.push_back(g->form(i));
+                proofs.push_back(g->pr(i));
+            }
+        
+            while (more) { // CMW: use repeat(...) ?
+                if (m_cancel) 
+                  throw tactic_exception(TACTIC_CANCELED_MSG);
+
+                new_forms.reset();
+                new_proofs.reset();
+                more = qm(forms.size(), forms.c_ptr(), proofs.c_ptr(), new_forms, new_proofs);            
+                forms.swap(new_forms);
+                proofs.swap(new_proofs);            
+            }
+
+            unsigned i = 0;
+            for (; i < g->size(); i++)
+                g->update(i, new_forms.get(i), produce_proofs ? new_proofs.get(i) : 0, 0);
+
+            for (; i < new_forms.size(); i++)
+                g->assert_expr(new_forms.get(i), new_proofs.get(i), 0);
+
+            extension_model_converter * evmc = alloc(extension_model_converter, mm.get_manager());
+            unsigned num = mm.get_num_macros();
+            for (unsigned i = 0; i < num; i++) {
+                expr_ref f_interp(mm.get_manager());
+                func_decl * f = mm.get_macro_interpretation(i, f_interp);
+                evmc->insert(f, f_interp);
+            }
+            mc = evmc;
+
+            g->inc_depth();
+            result.push_back(g.get());
+            TRACE("quasi-macros", g->display(tout););
+            SASSERT(g->is_well_sorted());
+        }
+
+        void updt_params(params_ref const & p) {
+        }
+    };
+    
+    imp *      m_imp;
+    params_ref m_params;
+
+public:
+    quasi_macros_tactic(ast_manager & m, params_ref const & p):
+        m_params(p) {
+        m_imp = alloc(imp, m, p);
+    }
+
+    virtual tactic * translate(ast_manager & m) {
+        return alloc(quasi_macros_tactic, m, m_params);
+    }
+        
+    virtual ~quasi_macros_tactic() {
+        dealloc(m_imp);
+    }
+
+    virtual void updt_params(params_ref const & p) {
+        m_params = p;
+        m_imp->updt_params(p);
+    }
+
+    virtual void collect_param_descrs(param_descrs & r) {
+        insert_max_memory(r);
+        insert_produce_models(r);
+        insert_produce_proofs(r);
+    }
+    
+    virtual void operator()(goal_ref const & in, 
+                            goal_ref_buffer & result, 
+                            model_converter_ref & mc, 
+                            proof_converter_ref & pc,
+                            expr_dependency_ref & core) {
+        (*m_imp)(in, result, mc, pc, core);
+    }
+    
+    virtual void cleanup() {
+        ast_manager & m = m_imp->m();
+        imp * d = m_imp;
+        #pragma omp critical (tactic_cancel)
+        {
+            m_imp = 0;
+        }
+        dealloc(d);
+        d = alloc(imp, m, m_params);
+        #pragma omp critical (tactic_cancel)
+        {
+            m_imp = d;
+        }
+    }
+
+    virtual void set_cancel(bool f) {
+        if (m_imp)
+            m_imp->set_cancel(f);
+    }
+};
+
+tactic * mk_quasi_macros_tactic(ast_manager & m, params_ref const & p) {
+    return alloc(quasi_macros_tactic, m, p);
+}