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###############################################################################
# Top contributors (to current version):
# Daniel Larraz, Andrew Reynolds, Aina Niemetz
#
# This file is part of the cvc5 project.
#
# Copyright (c) 2009-2025 by the authors listed in the file AUTHORS
# in the top-level source directory and their institutional affiliations.
# All rights reserved. See the file COPYING in the top-level source
# directory for licensing information.
# #############################################################################
##
from contextlib import contextmanager
import pytest
import cvc5
from cvc5 import InputParser, SymbolManager
@contextmanager
def does_not_raise():
yield
@pytest.fixture
def tm():
return cvc5.TermManager()
@pytest.fixture
def solver(tm):
return cvc5.Solver(tm)
def test_get_solver(solver):
p = InputParser(solver)
assert p.getSolver() is solver
def test_symbol_manager(tm, solver):
p = InputParser(solver)
assert isinstance(p.getSymbolManager(), SymbolManager)
sm = SymbolManager(tm)
p2 = InputParser(solver, sm)
assert p2.getSymbolManager() is sm
def test_set_file_input(solver):
p = InputParser(solver)
with pytest.raises(RuntimeError):
p.setFileInput(cvc5.InputLanguage.SMT_LIB_2_6, "nonexistent.smt2")
def test_set_and_append_incremental_string_input(tm, solver):
sm = SymbolManager(tm)
p = InputParser(solver, sm)
p.setIncrementalStringInput(cvc5.InputLanguage.SMT_LIB_2_6, "test_input_parser")
p.appendIncrementalStringInput("(set-logic ALL)")
p.appendIncrementalStringInput("(declare-fun a () Bool)")
p.appendIncrementalStringInput("(declare-fun b () Int)")
cmd = p.nextCommand()
assert cmd.isNull() is not True
with does_not_raise():
cmd.invoke(solver, sm)
cmd = p.nextCommand()
assert cmd.isNull() is not True
with does_not_raise():
cmd.invoke(solver, sm)
cmd = p.nextCommand()
assert cmd.isNull() is not True
with does_not_raise():
cmd.invoke(solver, sm)
def test_set_and_append_incremental_string_input_interleave(tm, solver):
sm = SymbolManager(tm)
p = InputParser(solver, sm)
p.setIncrementalStringInput(cvc5.InputLanguage.SMT_LIB_2_6, "test_input_parser")
p.appendIncrementalStringInput("(set-logic ALL)")
cmd = p.nextCommand()
assert cmd.isNull() is not True
with does_not_raise():
cmd.invoke(solver, sm)
p.appendIncrementalStringInput("(declare-fun a () Bool)")
cmd = p.nextCommand()
assert cmd.isNull() is not True
with does_not_raise():
cmd.invoke(solver, sm)
p.appendIncrementalStringInput("(declare-fun b () Int)")
cmd = p.nextCommand()
assert cmd.isNull() is not True
with does_not_raise():
cmd.invoke(solver, sm)
def test_append_incremental_no_set(tm, solver):
sm = SymbolManager(tm)
p = InputParser(solver, sm)
with pytest.raises(RuntimeError):
p.appendIncrementalStringInput("(set-logic ALL)")
def test_set_string_input(tm, solver):
sm = SymbolManager(tm)
p = InputParser(solver, sm)
p.setStringInput(cvc5.InputLanguage.SMT_LIB_2_6, "(set-logic ALL)", "test_input_parser")
cmd = p.nextCommand()
assert cmd.isNull() is False
with does_not_raise():
cmd.invoke(solver, sm)
cmd = p.nextCommand()
assert cmd.isNull() is True
def test_next_command_no_input(solver):
p = InputParser(solver)
p.setIncrementalStringInput(cvc5.InputLanguage.SMT_LIB_2_6, "test_input_parser")
cmd = p.nextCommand()
assert cmd.isNull() is True
t = p.nextTerm()
assert cmd.isNull() is True
def test_next_term(solver):
p = InputParser(solver)
with pytest.raises(RuntimeError):
p.nextTerm()
p.setIncrementalStringInput(cvc5.InputLanguage.SMT_LIB_2_6, "test_input_parser")
assert p.nextTerm().isNull() is True
def test_next_term2(tm, solver):
sm = SymbolManager(tm)
p = InputParser(solver, sm)
p.setIncrementalStringInput(cvc5.InputLanguage.SMT_LIB_2_6, "test_input_parser")
# parse a declaration command
p.appendIncrementalStringInput("(declare-fun a () Int)")
cmd = p.nextCommand()
assert cmd.isNull() is not True
with does_not_raise():
cmd.invoke(solver, sm)
# now parse some terms
t = None
p.appendIncrementalStringInput("45\n")
with does_not_raise():
t = p.nextTerm()
assert t.isNull() is False
p.appendIncrementalStringInput("(+ a 1)\n")
with does_not_raise():
t = p.nextTerm()
assert t.isNull() is False
assert t.getKind() == cvc5.Kind.ADD
p.appendIncrementalStringInput("(+ b 1)\n")
with pytest.raises(RuntimeError):
t = p.nextTerm()
def parse_logic_command(p, logic):
p.setIncrementalStringInput(cvc5.InputLanguage.SMT_LIB_2_6, "test_input_parser")
p.appendIncrementalStringInput("(set-logic " + logic + ")\n")
return p.nextCommand()
def test_multiple_parsers(tm, solver):
sm = SymbolManager(tm)
p = InputParser(solver, sm)
# set a logic for the parser
cmd = parse_logic_command(p, "QF_LIA")
with does_not_raise():
cmd.invoke(solver, sm)
assert solver.isLogicSet() is True
assert solver.getLogic() == "QF_LIA"
assert sm.isLogicSet() is True
assert sm.getLogic() == "QF_LIA"
# cannot set logic on solver now
with pytest.raises(RuntimeError):
solver.setLogic("QF_LRA")
# possible to construct another parser with the same solver and symbol
# manager
p2 = InputParser(solver, p.getSymbolManager())
# possible to construct another parser with a fresh solver
s2 = cvc5.Solver(tm)
p3 = InputParser(s2, sm)
p3.setIncrementalStringInput(cvc5.InputLanguage.SMT_LIB_2_6, "test_input_parser")
# logic is automatically set on the solver
assert s2.isLogicSet() is True
assert s2.getLogic() == "QF_LIA"
# we cannot set the logic since it has already been set
with pytest.raises(RuntimeError):
parse_logic_command(p3, "QF_LRA")
assert p3.done() is True
# using a solver with the same logic is allowed
s3 = cvc5.Solver(tm)
s3.setLogic("QF_LIA")
p4 = InputParser(s3, sm)
p4.setIncrementalStringInput(cvc5.InputLanguage.SMT_LIB_2_6, "test_input_parser")
# using a solver with a different logic is not allowed
s4 = cvc5.Solver(tm)
s4.setLogic("QF_LRA")
p5 = InputParser(s4, sm)
with pytest.raises(RuntimeError):
p5.setIncrementalStringInput(cvc5.InputLanguage.SMT_LIB_2_6, "test_input_parser")
def test_get_declared_terms_and_sorts(tm, solver):
sm = SymbolManager(tm)
p = InputParser(solver, sm)
p.setIncrementalStringInput(cvc5.InputLanguage.SMT_LIB_2_6, "test_input_parser")
p.appendIncrementalStringInput("(set-logic ALL)")
p.appendIncrementalStringInput("(declare-sort U 0)")
p.appendIncrementalStringInput("(declare-fun x () U)")
for i in [0,1,2]:
cmd = p.nextCommand()
assert cmd.isNull() != True
cmd.invoke(solver, sm);
sorts = sm.getDeclaredSorts();
terms = sm.getDeclaredTerms();
assert len(sorts) == 1
assert len(terms) == 1
assert terms[0].getSort() == sorts[0]
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