parse/0: instruction: 4
parse/0:   ingredient: {name: "2", value: 0, type: 0, properties: [2: literal]}
parse/0:   ingredient: {name: "3", value: 0, type: 0, properties: [3: literal]}
parse/0:   product: {name: "1", value: 0, type: 1, properties: [1: integer]}
after-brace/0: recipe main
after-brace/0: multiply ...
run/0: instruction main/0
run/0: ingredient 0 is 2
run/0: ingredient 1 is 3
run/0: ingredient 1 is 3
run/0: product 0 is 6
mem/0: storing 6 in location 1