%------------------------------------------------------------------------------ % File : SPASS-SCL---0.1 % Problem : SWV011+1 : TPTP v9.2.1. Released v2.4.0. % Transfm : none % Format : tptp % Command : /export/starexec/sandbox2/solver/bin/execute.py 300 /export/starexec/sandbox2/benchmark/theBenchmark.p % Computer : n015.cluster.edu % Model : x86_64 x86_64 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz % Memory : 8042.1875MB % OS : Linux 3.10.0-693.el7.x86_64 % CPULimit : 300s % WCLimit : 300s % DateTime : Thu May 7 07:36:43 PM UTC 2026 % Result : Theorem 0.28s 0.51s % Output : Assurance 0s % Verified : % SZS Type : - % Comments : %------------------------------------------------------------------------------ %----No solution output by system %------------------------------------------------------------------------------ %----ORIGINAL SYSTEM OUTPUT % 0.00/0.11 % Problem : SWV011+1 : TPTP v9.2.1. Released v2.4.0. % 0.00/0.12 % Command : /export/starexec/sandbox2/solver/bin/execute.py 300 /export/starexec/sandbox2/benchmark/theBenchmark.p % 0.15/0.33 % Computer : n015.cluster.edu % 0.15/0.33 % Model : x86_64 x86_64 % 0.15/0.33 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz % 0.15/0.33 % Memory : 8042.1875MB % 0.15/0.33 % OS : Linux 3.10.0-693.el7.x86_64 % 0.15/0.33 % CPULimit : 300 % 0.15/0.33 % WCLimit : 300 % 0.15/0.33 % DateTime : Thu May 7 13:26:02 EDT 2026 % 0.15/0.33 % CPUTime : % 0.15/0.33 SPASS-SCL-FOL version: % 0.18/0.42 SPASS-SCL-FOL 0.1 (595c0c7b1) [parallel mode] % 0.28/0.51 Starting: ./SPASS-SCL-FOL --heuristics_normal -t 300 /export/starexec/sandbox2/benchmark/theBenchmark.p % 0.28/0.51 Starting: ./SPASS-SCL-FOL --heuristics_resolution_1 -t 300 /export/starexec/sandbox2/benchmark/theBenchmark.p % 0.28/0.51 Starting: ./SPASS-SCL-FOL --heuristics_resolution_2 -t 300 /export/starexec/sandbox2/benchmark/theBenchmark.p % 0.28/0.51 Starting: ./SPASS-SCL-FOL --heuristics_resolution_3 -t 300 /export/starexec/sandbox2/benchmark/theBenchmark.p % 0.28/0.51 Starting: ./SPASS-SCL-FOL --heuristics_lmodel_grow -t 300 /export/starexec/sandbox2/benchmark/theBenchmark.p % 0.28/0.51 Execution normal ended with status: unsatisfiable % 0.28/0.51 Used heuristic: normal % 0.28/0.51 % 0.28/0.51 Input Clauses: % 0.28/0.51 % 0.28/0.51 Predicates: a_holds party_of_protocol message a_stored b_holds fresh_to_b t_holds b_stored % 0.28/0.51 Fol Constants: at t a b an_a_nonce bt % 0.28/0.51 Fol Functions: key pair sent generate_key generate_expiration_time triple encrypt generate_b_nonce quadruple % 0.28/0.51 Problem Properties: % 0.28/0.51 This is a full first-order problem without equality. % 0.28/0.51 % 0.28/0.51 After reduction: Problem Properties: % 0.28/0.51 This is a full first-order problem without equality. % 0.28/0.51 % 0.28/0.51 % 0.28/0.51 Reduced Input Clauses: % 0.28/0.51 % 0.28/0.51 Most General Atoms: a_holds(key(at,t)) party_of_protocol(a) message(sent(a,b,pair(a,an_a_nonce))) a_stored(pair(b,an_a_nonce)) b_holds(key(bt,t)) party_of_protocol(b) fresh_to_b(an_a_nonce) t_holds(key(at,a)) t_holds(key(bt,b)) party_of_protocol(t) message(sent(a,b,pair(encrypt(triple(a,generate_key(an_a_nonce),generate_expiration_time(an_a_nonce)),bt),encrypt(generate_b_nonce(an_a_nonce),generate_key(an_a_nonce))))) message(sent(t,a,triple(encrypt(quadruple(b,an_a_nonce,generate_key(an_a_nonce),generate_expiration_time(an_a_nonce)),at),encrypt(triple(a,generate_key(an_a_nonce),generate_expiration_time(an_a_nonce)),bt),generate_b_nonce(an_a_nonce)))) message(sent(b,t,triple(b,generate_b_nonce(an_a_nonce),encrypt(triple(a,an_a_nonce,generate_expiration_time(an_a_nonce)),bt)))) b_stored(pair(a,an_a_nonce)) a_holds(key(x0,b)) b_holds(key(x0,a)) % 0.28/0.51 % 0.28/0.51 === Starting SPASS-SCL-FOL A Little Less Naive, considering 22 atoms initially, heuristics mode: normal === % 0.28/0.51 % 0.28/0.51 % 0.28/0.51 SZS status Unsatisfiable % 0.28/0.51 % 0.28/0.51 Problem: /export/starexec/sandbox2/benchmark/theBenchmark.p % 0.28/0.51 % 0.28/0.51 SPASS-SCL-FOL Statistics: % 0.28/0.51 Number of learned clauses: 0 % 0.28/0.51 Number of propagations: 9 % 0.28/0.51 Number of decisions: 0 % 0.28/0.51 Number of resolutions: 2 % 0.28/0.51 Number of condensations: 0 % 0.28/0.51 Number of sub resolutions: 0 % 0.28/0.51 Number of input literals (deduplicated): 18 % 0.28/0.51 Number of grows: 0 % 0.28/0.51 Number of considered ground atoms: 22 % 0.28/0.51 % 0.28/0.51 Needed: 0:00:00.00 % 0.28/0.51 %------------------------------------------------------------------------------