Add option for inductive strengthening based on well-founded induction for integers (default schema).
Update bv proof signature and example, after discussions with Liana.
Fix --inst-max-level for strategies that use arbitrary representative terms.
Avoid doing work in quantifiers engine when no quantifiers are asserted.
Fix SMT1 parser :extrasorts/:extrapreds.
Fix operator-printing issue in SMT2.
Merge branch '1.4.x'
Fix incorrectly-labeled test.
Unsat cores.