add a parameter for debugging throttling

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

src/math/lp/nla_order_lemmas.cpp

@@ -96,6 +96,10 @@ void order::order_lemma_on_binomial_sign(const monic& xy, lpvar x, lpvar y, int
 }
 
 bool order::throttle_monic(const monic& ac, std::string const & debug_location ) { // todo - remove debug location!
+    // Check if throttling is enabled
+    if (!c().params().arith_nl_trl())
+        return false;
+    
     // Check if this monic has already been processed using its variable ID
     if (m_processed_monics.contains(ac.var())) {
         TRACE(nla_solver, tout << "throttled at " << debug_location << "\n";);

src/math/lp/nla_tangent_lemmas.cpp

@@ -200,6 +200,10 @@ void tangents::tangent_lemma() {
 }
 
 bool tangents::throttle_plane(unsigned var, bool below, std::string const & debug_location) {
+    // Check if throttling is enabled
+    if (!c().params().arith_nl_trl()) 
+        return false;
+    
     tangent_key key(var, below);
     
     // Check if this (var, below) pair has already been processed

src/params/smt_params_helper.pyg

@@ -65,6 +65,7 @@ def_module_params(module_name='smt',
                           ('arith.nl.order', BOOL, True, 'run order lemmas'),
                           ('arith.nl.expp', BOOL, False, 'expensive patching'),
                           ('arith.nl.tangents', BOOL, True, 'run tangent lemmas'),
+                          ('arith.nl.trl', BOOL, True, 'throttle repeated lemmas'),
                           ('arith.nl.horner', BOOL, True, 'run horner\'s heuristic'),
                           ('arith.nl.horner_subs_fixed', UINT, 2, '0 - no subs, 1 - substitute, 2 - substitute fixed zeros only'),
                           ('arith.nl.horner_frequency', UINT, 4, 'horner\'s call frequency'),