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arith_solver (#4733)

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* porting arithmetic solver

* integrating arithmetic

* lp

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* na

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* na

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* na

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
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Nikolaj Bjorner 2020-10-16 10:49:46 -07:00 • committed by GitHub
parent 2841796a92
commit 44679d8f5b
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33 changed files with 3172 additions and 403 deletions
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22
src/sat/smt/sat_th.cpp
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@ -204,5 +204,27 @@ namespace euf {
return b_internalize(ctx.mk_eq(a, b));
}
unsigned th_propagation::get_obj_size(unsigned num_lits, unsigned num_eqs) {
return sizeof(th_propagation) + sizeof(sat::literal) * num_lits + sizeof(enode_pair) * num_eqs;
}
th_propagation::th_propagation(sat::literal_vector const& lits, enode_pair_vector const& eqs) {
m_num_literals = lits.size();
m_num_eqs = eqs.size();
m_literals = reinterpret_cast<literal*>(reinterpret_cast<char*>(this) + sizeof(th_propagation));
unsigned i = 0;
for (sat::literal lit : lits)
m_literals[i++] = lit;
m_eqs = reinterpret_cast<enode_pair*>(reinterpret_cast<char*>(this) + sizeof(th_propagation) + sizeof(literal) * m_num_literals);
i = 0;
for (auto eq : eqs)
m_eqs[i++] = eq;
}
th_propagation* th_propagation::mk(th_euf_solver& th, sat::literal_vector const& lits, enode_pair_vector const& eqs) {
region& r = th.ctx.get_region();
void* mem = r.allocate(get_obj_size(lits.size(), eqs.size()));
sat::constraint_base::initialize(mem, &th);
return new (sat::constraint_base::ptr2mem(mem)) th_propagation(lits, eqs);
}
}