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https://github.com/Z3Prover/z3
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ML API bugfixes
More ML examples Signed-off-by: Christoph M. Wintersteiger <cwinter@microsoft.com>
This commit is contained in:
Christoph M. Wintersteiger
parent
c03d5277bc
commit
e2f6b10e32
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@ -17,6 +17,50 @@ open Z3.Arithmetic
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exception TestFailedException of string
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(**
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Model Converter test
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*)
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let model_converter_test ( ctx : context ) =
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Printf.printf "ModelConverterTest\n";
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let xr = ((mk_const ctx ((Symbol.mk_string ctx "x") :> symbol) (mk_real_sort ctx )) :> arith_expr) in
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let yr = ((mk_const ctx ((Symbol.mk_string ctx "y") :> symbol) (mk_real_sort ctx )) :> arith_expr) in
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let g4 = (mk_goal ctx true false false ) in
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(Goal.assert_ g4 [| (mk_gt ctx xr (mk_real_numeral_nd ctx 10 1)) |]) ;
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(Goal.assert_ g4 [| (mk_eq ctx yr (mk_add ctx [| xr; (mk_real_numeral_nd ctx 1 1) |] )) |] ) ;
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(Goal.assert_ g4 [| (mk_gt ctx yr (mk_real_numeral_nd ctx 1 1)) |]) ;
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(
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let ar = (Tactic.apply (mk_tactic ctx "simplify") g4 None) in
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if ((get_num_subgoals ar) == 1 &&
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((is_decided_sat (get_subgoal ar 0)) ||
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(is_decided_unsat (get_subgoal ar 0)))) then
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raise (TestFailedException "")
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else
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Printf.printf "Test passed.\n"
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);
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(
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let ar = (Tactic.apply (and_then ctx (mk_tactic ctx ("simplify")) (mk_tactic ctx "solve-eqs") None) g4 None) in
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if ((get_num_subgoals ar) == 1 &&
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((is_decided_sat (get_subgoal ar 0)) ||
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(is_decided_unsat (get_subgoal ar 0)))) then
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raise (TestFailedException "")
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else
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Printf.printf "Test passed.\n"
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;
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let solver = (mk_solver ctx None) in
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let f e = (Solver.assert_ solver [| e |]) in
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ignore (Array.map f (get_formulas (get_subgoal ar 0))) ;
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let q = (check solver None) in
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if q != SATISFIABLE then
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raise (TestFailedException "")
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else
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let m = (get_model solver) in
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match m with
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| None -> raise (TestFailedException "")
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| Some (m) ->
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Printf.printf "Solver says: %s\n" (string_of_status q) ;
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Printf.printf "Model: \n%s\n" (Model.to_string m) ;
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Printf.printf "Converted Model: \n%s\n" (Model.to_string (convert_model ar 0 m))
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)
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(**
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Some basic tests.
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@ -41,59 +85,78 @@ let basic_tests ( ctx : context ) =
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(Goal.assert_ g [| trivial_eq |]) ;
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(Goal.assert_ g [| nontrivial_eq |]) ;
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Printf.printf "%s\n" ("Goal: " ^ (Goal.to_string g)) ;
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let solver = (mk_solver ctx None) in
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(Array.iter (fun a -> (Solver.assert_ solver [| a |])) (get_formulas g)) ;
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if (check solver None) != SATISFIABLE then
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raise (TestFailedException "")
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else
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Printf.printf "Test passed.\n" ;
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() ;
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let ar = (Tactic.apply (mk_tactic ctx "simplify") g None) in
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if ((get_num_subgoals ar) == 1 &&
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((is_decided_sat (get_subgoal ar 0)) ||
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(is_decided_unsat (get_subgoal ar 0)))) then
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(
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let solver = (mk_solver ctx None) in
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(Array.iter (fun a -> (Solver.assert_ solver [| a |])) (get_formulas g)) ;
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if (check solver None) != SATISFIABLE then
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raise (TestFailedException "")
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else
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let ar = (Tactic.apply (mk_tactic ctx "smt") g None) in
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if ((get_num_subgoals ar) == 1 &&
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(not (is_decided_sat (get_subgoal ar 0)))) then
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raise (TestFailedException "")
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else
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(Goal.assert_ g [| (mk_eq ctx (mk_numeral_int ctx 1 (BitVectors.mk_sort ctx 32))
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(mk_numeral_int ctx 2 (BitVectors.mk_sort ctx 32))) |] )
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;
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let ar = (Tactic.apply (mk_tactic ctx "smt") g None) in
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if ((get_num_subgoals ar) == 1 &&
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(not (is_decided_unsat (get_subgoal ar 0)))) then
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raise (TestFailedException "")
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else
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let g2 = (mk_goal ctx true true false) in
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let ar = (Tactic.apply (mk_tactic ctx "smt") g2 None) in
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if ((get_num_subgoals ar) == 1 &&
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(not (is_decided_sat (get_subgoal ar 0)))) then
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raise (TestFailedException "")
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else
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()
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Printf.printf "Test passed.\n"
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);
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(
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let ar = (Tactic.apply (mk_tactic ctx "simplify") g None) in
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if ((get_num_subgoals ar) == 1 &&
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((is_decided_sat (get_subgoal ar 0)) ||
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(is_decided_unsat (get_subgoal ar 0)))) then
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raise (TestFailedException "")
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else
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Printf.printf "Test passed.\n"
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);
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(
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let ar = (Tactic.apply (mk_tactic ctx "smt") g None) in
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if ((get_num_subgoals ar) == 1 &&
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(not (is_decided_sat (get_subgoal ar 0)))) then
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raise (TestFailedException "")
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else
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Printf.printf "Test passed.\n"
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);
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(Goal.assert_ g [| (mk_eq ctx (mk_numeral_int ctx 1 (BitVectors.mk_sort ctx 32))
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(mk_numeral_int ctx 2 (BitVectors.mk_sort ctx 32))) |] )
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;
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(
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let ar = (Tactic.apply (mk_tactic ctx "smt") g None) in
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if ((get_num_subgoals ar) == 1 &&
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(not (is_decided_unsat (get_subgoal ar 0)))) then
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raise (TestFailedException "")
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else
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Printf.printf "Test passed.\n"
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);
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(
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let g2 = (mk_goal ctx true true false) in
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let ar = (Tactic.apply (mk_tactic ctx "smt") g2 None) in
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if ((get_num_subgoals ar) == 1 &&
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(not (is_decided_sat (get_subgoal ar 0)))) then
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raise (TestFailedException "")
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else
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Printf.printf "Test passed.\n"
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);
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(
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let g2 = (mk_goal ctx true true false) in
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(Goal.assert_ g2 [| (mk_false ctx) |]) ;
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let ar = (Tactic.apply (mk_tactic ctx "smt") g2 None) in
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if ((get_num_subgoals ar) == 1 &&
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(not (is_decided_unsat (get_subgoal ar 0)))) then
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raise (TestFailedException "")
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else
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Printf.printf "Test passed.\n"
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);
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(
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let g3 = (mk_goal ctx true true false) in
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let xc = (mk_const ctx ((Symbol.mk_string ctx "x") :> symbol) (mk_int_sort ctx)) in
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let yc = (mk_const ctx ((Symbol.mk_string ctx "y") :> symbol) (mk_int_sort ctx)) in
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(Goal.assert_ g3 [| (mk_eq ctx xc (mk_numeral_int ctx 1 (mk_int_sort ctx))) |]) ;
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(Goal.assert_ g3 [| (mk_eq ctx yc (mk_numeral_int ctx 2 (mk_int_sort ctx))) |]) ;
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let constr = (mk_eq ctx xc yc) in
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(Goal.assert_ g3 [| constr |] ) ;
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let ar = (Tactic.apply (mk_tactic ctx "smt") g3 None) in
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if ((get_num_subgoals ar) == 1 &&
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(not (is_decided_unsat (get_subgoal ar 0)))) then
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raise (TestFailedException "")
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else
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Printf.printf "Test passed.\n"
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) ;
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model_converter_test ctx
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(*
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g2 = ctx.MkGoal(true, true);
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g2.Assert(ctx.MkFalse());
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ar = ApplyTactic(ctx, ctx.MkTactic("smt"), g2);
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if (ar.NumSubgoals != 1 || !ar.Subgoals[0].IsDecidedUnsat)
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throw new TestFailedException();
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Goal g3 = ctx.MkGoal(true, true);
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Expr xc = ctx.MkConst(ctx.MkSymbol("x"), ctx.IntSort);
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Expr yc = ctx.MkConst(ctx.MkSymbol("y"), ctx.IntSort);
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g3.Assert(ctx.MkEq(xc, ctx.MkNumeral(1, ctx.IntSort)));
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g3.Assert(ctx.MkEq(yc, ctx.MkNumeral(2, ctx.IntSort)));
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BoolExpr constr = ctx.MkEq(xc, yc);
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g3.Assert(constr);
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ar = ApplyTactic(ctx, ctx.MkTactic("smt"), g3);
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if (ar.NumSubgoals != 1 || !ar.Subgoals[0].IsDecidedUnsat)
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throw new TestFailedException();
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ModelConverterTest(ctx);
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// Real num/den test.
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RatNum rn = ctx.MkReal(42, 43);
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Expr inum = rn.Numerator;
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@ -4684,6 +4684,11 @@ module Solver =
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struct
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type status = UNSATISFIABLE | UNKNOWN | SATISFIABLE
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let string_of_status ( s : status) = match s with
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| UNSATISFIABLE -> "unsatisfiable"
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| SATISFIABLE -> "satisfiable"
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| _ -> "unknown"
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(** Objects that track statistical information about solvers. *)
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module Statistics =
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struct
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