%------------------------------------------------------------------------------
% File : iProver---3.9.4
% Problem : RNG024-6 : TPTP v9.3.1. Released v1.0.0.
% Transfm : none
% Format : tptp:raw
% Command : run_iprover 300 /export/starexec/sandbox/benchmark/theBenchmark.p THM
% Computer : n026.cluster.edu
% Model : x86_64 x86_64
% CPU : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory : 8046.5625MB
% OS : Linux 6.8.0-71-generic
% CPULimit : 300s
% WCLimit : 300s
% DateTime : Fri Sep 25 02:38:13 PM UTC 2026
% Result : Unsatisfiable 1.00s 1.30s
% Output : CNFRefutation 2.20s
% Verified :
% SZS Type : Refutation
% Derivation depth : 5
% Number of leaves : 6
% Syntax : Number of formulae : 17 ( 17 unt; 0 def)
% Number of atoms : 17 ( 16 equ)
% Maximal formula atoms : 1 ( 1 avg)
% Number of connectives : 5 ( 5 ~; 0 |; 0 &)
% ( 0 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 4 ( 3 avg)
% Maximal term depth : 5 ( 2 avg)
% Number of types : 1 ( 0 usr)
% Number of type conns : 0 ( 0 >; 0 *; 0 +; 0 <<)
% Number of predicates : 2 ( 0 usr; 1 prp; 0-2 aty)
% Number of functors : 7 ( 7 usr; 3 con; 0-3 aty)
% Number of variables : 21 ( 0 sgn 21 !; 0 ?; 9 :)
% Comments :
%------------------------------------------------------------------------------
fof(f7,axiom,
! [X0] : add(additive_inverse(X0),X0) = additive_identity,
file('/export/starexec/sandbox/benchmark/Axioms/RNG003-0.ax',left_additive_inverse) ).
fof(f8,plain,
! [X0] : additive_identity = add(additive_inverse(X0),X0),
inference(reorient_equations,[],[f7]) ).
fof(f14,axiom,
! [X0,X1] : add(X0,X1) = add(X1,X0),
file('/export/starexec/sandbox/benchmark/Axioms/RNG003-0.ax',commutativity_for_addition) ).
fof(f15,axiom,
! [X2,X0,X1] : add(X0,add(X1,X2)) = add(add(X0,X1),X2),
file('/export/starexec/sandbox/benchmark/Axioms/RNG003-0.ax',associativity_for_addition) ).
fof(f16,axiom,
! [X0,X1] : multiply(multiply(X0,X1),X1) = multiply(X0,multiply(X1,X1)),
file('/export/starexec/sandbox/benchmark/Axioms/RNG003-0.ax',right_alternative) ).
fof(f18,axiom,
! [X2,X0,X1] : associator(X0,X1,X2) = add(multiply(multiply(X0,X1),X2),additive_inverse(multiply(X0,multiply(X1,X2)))),
file('/export/starexec/sandbox/benchmark/Axioms/RNG003-0.ax',associator) ).
fof(f20,negated_conjecture,
associator(x,y,y) != additive_identity,
file('/export/starexec/sandbox/benchmark/theBenchmark.p',prove_right_alternative) ).
fof(f21,plain,
additive_identity != associator(x,y,y),
inference(reorient_equations,[],[f20]) ).
fof(f22,plain,
additive_identity != add(multiply(multiply(x,y),y),additive_inverse(multiply(x,multiply(y,y)))),
inference(definition_unfolding,[],[f21,f18]) ).
tcf(c_69,plain,
! [X0: $i] : add(additive_inverse(X0),X0) = additive_identity,
inference(cnf_transformation,[],[f8]) ).
tcf(c_74,plain,
! [X0: $i,X1: $i] : add(X0,X1) = add(X1,X0),
inference(cnf_transformation,[],[f14]) ).
tcf(c_75,plain,
! [X0: $i,X1: $i,X2: $i] : add(add(X0,X1),X2) = add(X0,add(X1,X2)),
inference(cnf_transformation,[],[f15]) ).
tcf(c_76,plain,
! [X0: $i,X1: $i] : multiply(multiply(X0,X1),X1) = multiply(X0,multiply(X1,X1)),
inference(cnf_transformation,[],[f16]) ).
tcf(c_78,negated_conjecture,
add(multiply(multiply(x,y),y),additive_inverse(multiply(x,multiply(y,y)))) != additive_identity,
inference(cnf_transformation,[],[f22]) ).
tcf(c_89,plain,
! [X0: $i] : add(X0,additive_inverse(X0)) = additive_identity,
inference(theory_normalisation,[status(thm)],[c_69,c_75,c_74]) ).
tcf(c_116,plain,
additive_identity != additive_identity,
inference(demodulation,[status(thm)],[c_78,c_89,c_76]) ).
tcf(c_117,plain,
$false,
inference(equality_resolution_simp,[status(thm)],[c_116]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.05 % Problem : RNG024-6 : TPTP v9.3.1. Released v1.0.0.
% 0.00/0.07 % Command : run_iprover 300 /export/starexec/sandbox/benchmark/theBenchmark.p THM
% 0.13/0.39 % Computer : n026.cluster.edu
% 0.13/0.39 % Model : x86_64 x86_64
% 0.13/0.39 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.39 % Memory : 8046.5625MB
% 0.13/0.39 % OS : Linux 6.8.0-71-generic
% 0.13/0.39 % CPULimit : 300
% 0.13/0.39 % WCLimit : 300
% 0.13/0.39 % DateTime : Thu Sep 24 07:49:55 UTC 2026
% 0.13/0.39 % CPUTime :
% 0.13/0.39 Running run_iprover 300 /export/starexec/sandbox/benchmark/theBenchmark.p THM
% 0.13/0.43 Running UEQ theorem proving
% 0.13/0.43 Running: /export/starexec/sandbox/solver/bin/iproveropt-multi-core.sh -d -n -l tptp -s ueq_schedule -t 300 /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.13/0.44
% 0.13/0.44 % ======== iProver multi-core TPTP/SMT =========
% 0.13/0.44
% 0.13/0.44 % Detected problem language: tptp
% 0.13/0.45 % Proving...
% 1.00/1.30 WARNING - Clausifier option not provided in the heuristic config "heur/vip2_118404", setting default options.
% 1.00/1.30 % SZS status Started for theBenchmark.p
% 1.00/1.30 % SZS status Unsatisfiable for theBenchmark.p
% 1.00/1.30
% 1.00/1.30 %---------------- iProver v3.9.4 (pre CASC 2026/SMT-COMP 2026) ----------------%
% 1.00/1.30
% 1.00/1.30 % ------ iProver source info
% 1.00/1.30
% 1.00/1.30 % git: date: 2026-07-19 20:42:38 +0200
% 1.00/1.30 % git: sha1: 804e7d636a263075307957e923b7a22a4035de61
% 1.00/1.30 % git: non_committed_changes: false
% 1.00/1.30
% 1.00/1.30 % ------ Parsing...% successful
% 1.00/1.30
% 1.00/1.30
% 1.00/1.30 % ------ Clausification by vclausify_rel & Parsing by iProver...%
% 1.00/1.30
% 1.00/1.30 % ------ Preprocessing...%
% 1.00/1.30
% 1.00/1.30 % SZS status Unsatisfiable for theBenchmark.p
% 1.00/1.30
% 1.00/1.30 % SZS output start CNFRefutation for theBenchmark.p
% See solution above
% 2.20/1.30
% 2.20/1.30
%------------------------------------------------------------------------------