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fix issue #196 related to resetting qe-sat tactic state over multiple calls

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2015-09-01 12:36:45 -07:00
parent fdef17683a
commit 1257d1d990
1 changed files with 14 additions and 9 deletions
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23
src/qe/qe_sat_tactic.cpp
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@ -67,6 +67,7 @@ namespace qe {
bool m_ctx_simplify_local_param;
vector<app_ref_vector> m_vars;
ptr_vector<smt::kernel> m_solvers;
vector<smt_params> m_fparamv;
smt::kernel m_solver;
expr_ref m_fml;
expr_ref_vector m_Ms;
@ -229,9 +230,7 @@ namespace qe {
}
virtual ~sat_tactic() {
for (unsigned i = 0; i < m_solvers.size(); ++i) {
dealloc(m_solvers[i]);
}
reset();
}
virtual void set_cancel(bool f) {
@ -323,12 +322,12 @@ namespace qe {
unsigned num_alternations() const { return m_vars.size(); }
void init_Ms() {
for (unsigned i = 0; i < num_alternations(); ++i) {
for (unsigned i = 0; i <= num_alternations(); ++i) {
m_Ms.push_back(m.mk_true());
m_solvers.push_back(alloc(smt::kernel, m, m_fparams, m_params));
m_fparamv.push_back(m_fparams);
m_solvers.push_back(alloc(smt::kernel, m, m_fparamv.back(), m_params));
}
m_Ms.push_back(m_fml);
m_solvers.push_back(alloc(smt::kernel, m, m_fparams, m_params));
m_Ms[m_Ms.size()-1] = m_fml;
m_solvers.back()->assert_expr(m_fml);
}
@ -339,8 +338,13 @@ namespace qe {
smt::kernel& solver(unsigned i) { return *m_solvers[i]; }
void reset() {
for (unsigned i = 0; i < m_solvers.size(); ++i) {
dealloc(m_solvers[i]);
}
m_fml = 0;
m_Ms.reset();
m_fparamv.reset();
m_solvers.reset();
m_vars.reset();
}
@ -359,7 +363,7 @@ namespace qe {
void extract_alt_form(expr* fml) {
quantifier_hoister hoist(m);
expr_ref result(m);
bool is_fa;
bool is_fa = false;
unsigned parity = 0;
m_fml = fml;
while (true) {
@ -638,7 +642,8 @@ namespace qe {
TRACE("qe", tout << mk_pp(_fml, m) << "\n-- context simplify -->\n" << mk_pp(fml, m) << "\n";);
}
solver_context ctx(*this, idx);
ctx.add_plugin(mk_arith_plugin(ctx, false, m_fparams));
smt_params fparams(m_fparams);
ctx.add_plugin(mk_arith_plugin(ctx, false, fparams));
ctx.add_plugin(mk_bool_plugin(ctx));
ctx.add_plugin(mk_bv_plugin(ctx));
ctx.init(fml, idx);