def test_add_rules():
solver = pycvc4.Solver()
boolean = solver.getBooleanSort()
integer = solver.getIntegerSort()
nullTerm = pycvc4.Term(solver)
start = solver.mkVar(boolean)
nts = solver.mkVar(boolean)
g = solver.mkSygusGrammar([], [start])
g.addRules(start, {solver.mkBoolean(False)})
#Expecting errors
with pytest.raises(Exception):
g.addRules(nullTerm, solver.mkBoolean(False))
with pytest.raises(Exception):
g.addRules(start, {nullTerm})
with pytest.raises(Exception):
g.addRules(nts, {solver.mkBoolean(False)})
with pytest.raises(Exception):
g.addRules(start, {solver.mkReal(0)})
#Expecting no errors
solver.synthFun("f", {}, boolean, g)
#Expecting an error
with pytest.raises(Exception):
g.addRules(start, solver.mkBoolean(False))
def testAddAnyVariable():
solver = pycvc4.Solver()
boolean = solver.getBooleanSort()
nullTerm = pycvc4.Term(solver)
x = solver.mkVar(boolean)
start = solver.mkVar(boolean)
nts = solver.mkVar(boolean)
g1 = solver.mkSygusGrammar({x}, {start})
g2 = solver.mkSygusGrammar({}, {start})
g1.addAnyVariable(start)
g1.addAnyVariable(start)
g2.addAnyVariable(start)
with pytest.raises(Exception):
g1.addAnyVariable(nullTerm)
with pytest.raises(Exception):
g1.addAnyVariable(nts)
solver.synthFun("f", {}, boolean, g1)
with pytest.raises(Exception):
g1.addAnyVariable(start)
def testAddAnyConstant():
solver = pycvc4.Solver()
boolean = solver.getBooleanSort()
nullTerm = pycvc4.Term(solver)
start = solver.mkVar(boolean)
nts = solver.mkVar(boolean)
g = solver.mkSygusGrammar({}, {start})
g.addAnyConstant(start)
g.addAnyConstant(start)
with pytest.raises(Exception):
g.addAnyConstant(nullTerm)
with pytest.raises(Exception):
g.addAnyConstant(nts)
solver.synthFun("f", {}, boolean, g)
with pytest.raises(Exception):
g.addAnyConstant(start)