testing! disable gomory cut in int_solver

Signed-off-by: Lev Nachmanson <[email protected]>

Author: levnach

src/math/lp/int_solver.cpp

@@ -126,6 +126,7 @@ namespace lp {
         }
 
         bool all_columns_are_integral() const {
+            return true; // otherwise it never returns true!
             for (lpvar j = 0; j < lra.number_of_vars(); j++)
                 if (!lra.column_is_int(j))
                     return false;

src/math/lp/lp_settings.cpp

@@ -34,6 +34,7 @@ void lp::lp_settings::updt_params(params_ref const& _p) {
     m_nlsat_delay = p.arith_nl_delay();
     m_dio_eqs = p.arith_lp_dio_eqs();
     m_dio_enable_gomory_cuts = p.arith_lp_dio_cuts_enable_gomory();
+    m_dio_enable_hnf_cuts = p.arith_lp_dio_cuts_enable_hnf();
     m_dio_branching_period = p.arith_lp_dio_branching_period();
     m_dump_bound_lemmas = p.arith_dump_bound_lemmas();
 }