test.osl:8: error: cannot write to non-output parameter "x"
test.osl:9: error: cannot write to non-output parameter "x"
test.osl:10: error: cannot write to non-output parameter "i"
test.osl:11: error: cannot write to non-output parameter "i"
test.osl:24: error: cannot write to non-output parameter "u"
FAILED test.osl
