parse/0: instruction: 1
parse/0:   ingredient: {name: "y", value: 0, type: 1, properties: ["y": "integer"]}
parse/0:   product: {name: "x", value: 0, type: 1, properties: ["x": "integer"]}
warn/0: use before set: y in main
name/0: assign x 1
after-brace/0: recipe main
after-brace/0: copy ...
run/0: instruction main/0
run/0: ingredient 0 is y
mem/0: location 0 is 0
mem/0: storing 0 in location 1