correct lipshitz bound for stl predicates

stl/utils.py

@@ -121,12 +121,12 @@ def from_mtl(phi:MTL, ap_map:Dict[AtomicPred, LinEq]) -> STL:
     focus = AP_lens(phi)
     return focus.modify(ap_map.get)
 
+def _lineq_lipschitz(lineq):
+    return sum(map(abs, lens(lineq).terms.each_().coeff.get_all()))
+
 def linear_stl_lipschitz(phi):
-    r = max(abs(c) for c in terms_lens(phi).coeff.get_all())
+    """Infinity norm lipschitz bound of linear inequality predicate."""
-    try:
+    return float(max(map(_lineq_lipschitz, lineq_lens(phi).get_all())))
-        return float(r)
-    except TypeError:
-        return r
 
 # EDSL