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/*******************************************************************\
Module: Unit tests for satcheck_cadical
Author: Peter Schrammel, Michael Tautschnig
\*******************************************************************/
/// \file
/// Unit tests for satcheck_cadical
#ifdef HAVE_CADICAL
# include <testing-utils/use_catch.h>
# include <solvers/prop/literal.h>
# include <solvers/sat/satcheck_cadical.h>
# include <util/cout_message.h>
SCENARIO("satcheck_cadical", "[core][solvers][sat][satcheck_cadical]")
{
console_message_handlert message_handler;
GIVEN("A satisfiable formula f")
{
satcheck_cadical_no_preprocessingt satcheck(message_handler);
literalt f = satcheck.new_variable();
satcheck.l_set_to_true(f);
THEN("is indeed satisfiable")
{
REQUIRE(satcheck.prop_solve() == propt::resultt::P_SATISFIABLE);
}
THEN("is unsatisfiable under a false assumption")
{
bvt assumptions;
assumptions.push_back(const_literal(false));
REQUIRE(
satcheck.prop_solve(assumptions) == propt::resultt::P_UNSATISFIABLE);
}
}
GIVEN("An unsatisfiable formula f && !f")
{
satcheck_cadical_no_preprocessingt satcheck(message_handler);
literalt f = satcheck.new_variable();
satcheck.l_set_to_true(satcheck.land(f, !f));
THEN("is indeed unsatisfiable")
{
REQUIRE(satcheck.prop_solve() == propt::resultt::P_UNSATISFIABLE);
}
}
GIVEN("An unsatisfiable formula false implied by a")
{
satcheck_cadical_no_preprocessingt satcheck(message_handler);
literalt a = satcheck.new_variable();
literalt a_implies_false = satcheck.lor(!a, const_literal(false));
satcheck.l_set_to_true(a_implies_false);
THEN("is indeed unsatisfiable under assumption a")
{
bvt assumptions;
assumptions.push_back(a);
REQUIRE(
satcheck.prop_solve(assumptions) == propt::resultt::P_UNSATISFIABLE);
}
THEN("is still unsatisfiable under assumption a and true")
{
bvt assumptions;
assumptions.push_back(const_literal(true));
assumptions.push_back(a);
REQUIRE(
satcheck.prop_solve(assumptions) == propt::resultt::P_UNSATISFIABLE);
}
THEN("becomes satisfiable when assumption a is lifted")
{
bvt assumptions;
REQUIRE(
satcheck.prop_solve(assumptions) == propt::resultt::P_SATISFIABLE);
}
}
}
#endif
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