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212 lines
11 KiB
212 lines
11 KiB
#include "gtest/gtest.h"
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#include "storm-config.h"
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#ifdef STORM_HAVE_MSAT
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#include "mathsat.h"
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#include "src/adapters/MathsatExpressionAdapter.h"
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#include "src/settings/SettingsManager.h"
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TEST(MathsatExpressionAdapter, StormToMathsatBasic) {
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msat_config config = msat_create_config();
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msat_env env = msat_create_env(config);
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ASSERT_FALSE(MSAT_ERROR_ENV(env));
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msat_destroy_config(config);
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std::shared_ptr<storm::expressions::ExpressionManager> manager(new storm::expressions::ExpressionManager());
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storm::adapters::MathsatExpressionAdapter adapter(*manager, env);
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storm::expressions::Expression exprTrue = manager->boolean(true);
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msat_term msatTrue = msat_make_true(env);
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msat_term conjecture;
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ASSERT_NO_THROW(conjecture = msat_make_not(env, msat_make_iff(env, msatTrue, adapter.translateExpression(exprTrue))));
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msat_assert_formula(env, conjecture);
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ASSERT_TRUE(msat_solve(env) == msat_result::MSAT_UNSAT);
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msat_reset_env(env);
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storm::expressions::Expression exprFalse = manager->boolean(false);
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msat_term msatFalse = msat_make_false(env);
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ASSERT_NO_THROW(conjecture = msat_make_not(env, msat_make_iff(env, adapter.translateExpression(exprFalse), msatFalse)));
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msat_assert_formula(env, conjecture);
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ASSERT_TRUE(msat_solve(env) == msat_result::MSAT_UNSAT);
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msat_reset_env(env);
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storm::expressions::Variable x = manager->declareBooleanVariable("x");
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storm::expressions::Variable y = manager->declareBooleanVariable("y");
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storm::expressions::Expression exprConjunction = x && y;
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msat_term msatConjunction = msat_make_and(env, msat_make_constant(env, msat_declare_function(env, "x", msat_get_bool_type(env))), msat_make_constant(env, msat_declare_function(env, "y", msat_get_bool_type(env))));
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ASSERT_NO_THROW(conjecture = msat_make_not(env, msat_make_iff(env, adapter.translateExpression(exprConjunction), msatConjunction)));
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msat_assert_formula(env, conjecture);
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ASSERT_TRUE(msat_solve(env) == msat_result::MSAT_UNSAT);
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msat_reset_env(env);
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storm::expressions::Expression exprNor = !(x || y);
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msat_term msatNor = msat_make_not(env, msat_make_or(env, msat_make_constant(env, msat_declare_function(env, "x", msat_get_bool_type(env))), msat_make_constant(env, msat_declare_function(env, "y", msat_get_bool_type(env)))));
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ASSERT_NO_THROW(adapter.translateExpression(exprNor)); // Variables already created in adapter.
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ASSERT_NO_THROW(conjecture = msat_make_not(env, msat_make_iff(env, adapter.translateExpression(exprNor), msatNor)));
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msat_assert_formula(env, conjecture);
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ASSERT_TRUE(msat_solve(env) == msat_result::MSAT_UNSAT);
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msat_reset_env(env);
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}
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TEST(MathsatExpressionAdapter, StormToMathsatInteger) {
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msat_config config = msat_create_config();
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msat_env env = msat_create_env(config);
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ASSERT_FALSE(MSAT_ERROR_ENV(env));
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msat_destroy_config(config);
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std::shared_ptr<storm::expressions::ExpressionManager> manager(new storm::expressions::ExpressionManager());
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storm::adapters::MathsatExpressionAdapter adapter(*manager, env);
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storm::expressions::Variable x = manager->declareIntegerVariable("x");
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storm::expressions::Variable y = manager->declareIntegerVariable("y");
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storm::expressions::Expression exprAdd = x + y < -y;
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msat_decl xDecl = msat_declare_function(env, "x", msat_get_integer_type(env));
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msat_term xVar = msat_make_constant(env, xDecl);
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msat_decl yDecl = msat_declare_function(env, "y", msat_get_integer_type(env));
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msat_term yVar = msat_make_constant(env, yDecl);
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msat_term minusY = msat_make_times(env, msat_make_number(env, "-1"), yVar);
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msat_term msatAdd = msat_make_plus(env, xVar, yVar);
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msat_term msatLess = msat_make_and(env, msat_make_leq(env, msatAdd, minusY), msat_make_not(env, msat_make_equal(env, msatAdd, minusY)));
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msat_term conjecture;
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ASSERT_NO_THROW(conjecture = msat_make_not(env, msat_make_iff(env, adapter.translateExpression(exprAdd), msatLess)));
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msat_assert_formula(env, conjecture);
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ASSERT_TRUE(msat_solve(env) == msat_result::MSAT_UNSAT);
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msat_reset_env(env);
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storm::expressions::Expression exprMult = !(x * y == y);
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msat_term msatTimes = msat_make_times(env, xVar, yVar);
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msat_term msatNotEqual = msat_make_not(env, msat_make_equal(env, msatTimes, yVar));
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ASSERT_NO_THROW(conjecture = msat_make_not(env, msat_make_iff(env, adapter.translateExpression(exprMult), msatNotEqual)));
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msat_assert_formula(env, conjecture);
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ASSERT_TRUE(msat_solve(env) == msat_result::MSAT_UNSAT);
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msat_reset_env(env);
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}
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TEST(MathsatExpressionAdapter, StormToMathsatReal) {
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msat_config config = msat_create_config();
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msat_env env = msat_create_env(config);
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ASSERT_FALSE(MSAT_ERROR_ENV(env));
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msat_destroy_config(config);
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std::shared_ptr<storm::expressions::ExpressionManager> manager(new storm::expressions::ExpressionManager());
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storm::adapters::MathsatExpressionAdapter adapter(*manager, env);
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storm::expressions::Variable x = manager->declareRationalVariable("x");
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storm::expressions::Variable y = manager->declareRationalVariable("y");
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storm::expressions::Expression exprAdd = x + y < -y;
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msat_decl xDecl = msat_declare_function(env, "x", msat_get_rational_type(env));
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msat_term xVar = msat_make_constant(env, xDecl);
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msat_decl yDecl = msat_declare_function(env, "y", msat_get_rational_type(env));
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msat_term yVar = msat_make_constant(env, yDecl);
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msat_term minusY = msat_make_times(env, msat_make_number(env, "-1"), yVar);
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msat_term msatAdd = msat_make_plus(env, xVar, yVar);
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msat_term msatLess = msat_make_and(env, msat_make_leq(env, msatAdd, minusY), msat_make_not(env, msat_make_equal(env, msatAdd, minusY)));
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msat_term conjecture;
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ASSERT_NO_THROW(conjecture = msat_make_not(env, msat_make_iff(env, adapter.translateExpression(exprAdd), msatLess)));
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msat_assert_formula(env, conjecture);
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ASSERT_TRUE(msat_solve(env) == msat_result::MSAT_UNSAT);
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msat_reset_env(env);
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storm::expressions::Expression exprMult = !(x * y == y);
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msat_term msatTimes = msat_make_times(env, xVar, yVar);
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msat_term msatNotEqual = msat_make_not(env, msat_make_equal(env, msatTimes, yVar));
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ASSERT_NO_THROW(conjecture = msat_make_not(env, msat_make_iff(env, adapter.translateExpression(exprMult), msatNotEqual)));
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msat_assert_formula(env, conjecture);
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ASSERT_TRUE(msat_solve(env) == msat_result::MSAT_UNSAT);
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msat_reset_env(env);
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}
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TEST(MathsatExpressionAdapter, StormToMathsatFloorCeil) {
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msat_config config = msat_create_config();
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msat_env env = msat_create_env(config);
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ASSERT_FALSE(MSAT_ERROR_ENV(env));
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msat_destroy_config(config);
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std::shared_ptr<storm::expressions::ExpressionManager> manager(new storm::expressions::ExpressionManager());
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storm::adapters::MathsatExpressionAdapter adapter(*manager, env);
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storm::expressions::Variable d = manager->declareRationalVariable("d");
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storm::expressions::Variable i = manager->declareIntegerVariable("i");
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storm::expressions::Expression exprFloor = storm::expressions::floor(d) == i && d > manager->rational(4.1) && d < manager->rational(4.991);
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msat_decl iDecl = msat_declare_function(env, "i", msat_get_integer_type(env));
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msat_term iVar = msat_make_constant(env, iDecl);
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msat_term msatEqualsFour = msat_make_equal(env, msat_make_number(env, "4"), iVar);
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msat_term conjecture;
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msat_term translatedExpr = adapter.translateExpression(exprFloor);
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msat_term msatIff = msat_make_iff(env, translatedExpr, msatEqualsFour);
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ASSERT_NO_THROW(conjecture = msat_make_not(env, msatIff));
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msat_assert_formula(env, conjecture);
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// It is not logically equivalent, so this should be satisfiable.
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ASSERT_TRUE(msat_solve(env) == msat_result::MSAT_SAT);
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msat_reset_env(env);
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ASSERT_NO_THROW(conjecture = msat_make_not(env, msat_make_or(env, msat_make_not(env, adapter.translateExpression(exprFloor)), msatEqualsFour)));
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msat_assert_formula(env, conjecture);
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// However, the left part implies the right one, which is why this should be unsatisfiable.
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ASSERT_TRUE(msat_solve(env) == msat_result::MSAT_UNSAT);
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msat_reset_env(env);
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storm::expressions::Expression exprCeil = storm::expressions::ceil(d) == i && d > manager->rational(4.1) && d < manager->rational(4.991);
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msat_term msatEqualsFive = msat_make_equal(env, msat_make_number(env, "5"), iVar);
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ASSERT_NO_THROW(conjecture = msat_make_not(env, msat_make_iff(env, adapter.translateExpression(exprFloor), msatEqualsFive)));
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msat_assert_formula(env, conjecture);
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// It is not logically equivalent, so this should be satisfiable.
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ASSERT_TRUE(msat_solve(env) == msat_result::MSAT_SAT);
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msat_reset_env(env);
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ASSERT_NO_THROW(conjecture = msat_make_or(env, msat_make_not(env, adapter.translateExpression(exprFloor)), msatEqualsFive));
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msat_assert_formula(env, conjecture);
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msat_reset_env(env);
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}
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TEST(MathsatExpressionAdapter, MathsatToStormBasic) {
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msat_config config = msat_create_config();
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msat_env env = msat_create_env(config);
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ASSERT_FALSE(MSAT_ERROR_ENV(env));
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msat_destroy_config(config);
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std::shared_ptr<storm::expressions::ExpressionManager> manager(new storm::expressions::ExpressionManager());
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manager->declareBooleanVariable("x");
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manager->declareBooleanVariable("y");
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storm::adapters::MathsatExpressionAdapter adapter(*manager, env);
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msat_term msatTrue = msat_make_true(env);
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storm::expressions::Expression exprTrue;
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ASSERT_NO_THROW(exprTrue = adapter.translateExpression(msatTrue));
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ASSERT_TRUE(exprTrue.isTrue());
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msat_term msatFalse = msat_make_false(env);
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storm::expressions::Expression exprFalse;
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ASSERT_NO_THROW(exprTrue = adapter.translateExpression(msatFalse));
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ASSERT_TRUE(exprTrue.isFalse());
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msat_decl xDecl = msat_declare_function(env, "x", msat_get_bool_type(env));
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msat_term x = msat_make_constant(env, xDecl);
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msat_decl yDecl = msat_declare_function(env, "y", msat_get_bool_type(env));
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msat_term y = msat_make_constant(env, yDecl);
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msat_term msatConjunction = msat_make_and(env, x, y);
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storm::expressions::Expression exprConjunction;
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ASSERT_NO_THROW(exprConjunction = adapter.translateExpression(msatConjunction));
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ASSERT_EQ(storm::expressions::OperatorType::And, exprConjunction.getOperator());
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ASSERT_TRUE(exprConjunction.getOperand(0).isVariable());
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ASSERT_EQ("x", exprConjunction.getOperand(0).getIdentifier());
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ASSERT_TRUE(exprConjunction.getOperand(1).isVariable());
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ASSERT_EQ("y", exprConjunction.getOperand(1).getIdentifier());
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msat_term msatNor = msat_make_not(env, msat_make_or(env, x, y));
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storm::expressions::Expression exprNor;
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ASSERT_NO_THROW(exprNor = adapter.translateExpression(msatNor));
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ASSERT_EQ(storm::expressions::OperatorType::Not, exprNor.getOperator());
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ASSERT_EQ(storm::expressions::OperatorType::Or, exprNor.getOperand(0).getOperator());
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ASSERT_TRUE(exprNor.getOperand(0).getOperand(0).isVariable());
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ASSERT_EQ("x", exprNor.getOperand(0).getOperand(0).getIdentifier());
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ASSERT_TRUE(exprNor.getOperand(0).getOperand(1).isVariable());
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ASSERT_EQ("y", exprNor.getOperand(0).getOperand(1).getIdentifier());
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}
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#endif
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