SMT2 solver: remove spurious parenthesis in result output

[tautschnig]

The output had more closing parentheses than opening ones.

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[kroening]

Should there be closing parentheses after the operands?

[tautschnig]

Should there be closing parentheses after the operands?

There is the closing parenthesis on line 156, if that’s the operands you are referring to?