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Álvaro F. Silva

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Book Open access Aug 2026

DSpec2Test: Specification-Driven Test Generation in Dafny

DSpec2Test is presented, a specification-driven test generation tool for Dafny that automatically derives tests from formal specifications, without considering implementation details, and achieves a 93.9% mutation kill rate on a dataset of 131 mutants, outperforming Block's 82.4%, and uniquely killing 17 mutants.

Sofia Vieira Pinto, Álvaro F. Silva, João Pascoal Faria et al. · 0 citations
Preprint Aug 2026

ProofPulse: Interactive Proof Coverage Analysis for Dafny

Evaluated against an oracle of 252 programs from the dafny-synthesis benchmark, ProofPulse provides a high-precision signal for specification weaknesses, particularly unnecessary preconditions and vacuous proofs.

Álvaro F. Silva, Ruben Martins, Alexandra Mendes · 0 citations
Preprint Aug 2026

Improving Debugging in Verification-Aware Languages Through Automated Fault Localization: A Case Study in Dafny

This paper investigates automated fault localization for verification-aware languages by comparing two paradigms: state-based and counterexample-based localization, and shows that counterexample-based approaches substantially outperform state-based localization in this setting.

Álvaro F. Silva, Isabel Amaral, João Pascoal Faria et al. · 1 citation · ⚡1

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