%------------------------------------------------------------------------------
% File : iProver---3.9.4
% Problem : GRP403-1 : TPTP v9.3.1. Released v2.6.0.
% Transfm : none
% Format : tptp:raw
% Command : run_iprover 300 /export/starexec/sandbox2/benchmark/theBenchmark.p THM
% Computer : n007.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 01:33:39 PM UTC 2026
% Result : Unsatisfiable 3.75s 1.18s
% Output : CNFRefutation 3.75s
% Verified :
% SZS Type : Refutation
% Derivation depth : 9
% Number of leaves : 2
% Syntax : Number of formulae : 15 ( 15 unt; 0 def)
% Number of atoms : 15 ( 14 equ)
% Maximal formula atoms : 1 ( 1 avg)
% Number of connectives : 2 ( 2 ~; 0 |; 0 &)
% ( 0 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 6 ( 4 avg)
% Maximal term depth : 9 ( 3 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 : 4 ( 4 usr; 2 con; 0-2 aty)
% Number of variables : 40 ( 0 sgn 40 !; 0 ?; 37 :)
% Comments :
%------------------------------------------------------------------------------
fof(f1,axiom,
! [X2,X0,X1] : multiply(X0,inverse(multiply(inverse(multiply(inverse(multiply(X0,X1)),X2)),inverse(multiply(X1,multiply(inverse(X1),X1)))))) = X2,
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',single_axiom) ).
fof(f2,negated_conjecture,
multiply(inverse(a1),a1) != multiply(inverse(b1),b1),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_these_axioms_1) ).
tcf(c_51,plain,
! [X0: $i,X1: $i,X2: $i] : multiply(X0,inverse(multiply(inverse(multiply(inverse(multiply(X0,X1)),X2)),inverse(multiply(X1,multiply(inverse(X1),X1)))))) = X2,
inference(cnf_transformation,[],[f1]) ).
tcf(c_52,negated_conjecture,
multiply(inverse(a1),a1) != multiply(inverse(b1),b1),
inference(cnf_transformation,[],[f2]) ).
tcf(c_94,plain,
! [X0: $i,X1: $i,X2: $i,X3: $i] : inverse(multiply(inverse(multiply(inverse(multiply(inverse(multiply(X0,X1)),X2)),X3)),inverse(multiply(X2,multiply(inverse(X2),X2))))) = multiply(X0,inverse(multiply(inverse(X3),inverse(multiply(X1,multiply(inverse(X1),X1)))))),
inference(superposition,[status(thm)],[c_51,c_51]) ).
tcf(c_120,plain,
! [X0: $i,X1: $i,X2: $i] : multiply(inverse(multiply(X0,X1)),multiply(X0,inverse(multiply(inverse(X2),inverse(multiply(X1,multiply(inverse(X1),X1))))))) = X2,
inference(superposition,[status(thm)],[c_94,c_51]) ).
tcf(c_131,plain,
! [X0: $i,X1: $i,X2: $i,X3: $i] : inverse(multiply(inverse(multiply(inverse(multiply(inverse(multiply(X0,X1)),X2)),multiply(inverse(multiply(X0,X1)),X3))),inverse(multiply(X2,multiply(inverse(X2),X2))))) = X3,
inference(superposition,[status(thm)],[c_94,c_51]) ).
tcf(c_386,plain,
! [X0: $i,X1: $i,X2: $i] : inverse(multiply(inverse(multiply(inverse(multiply(X0,X1)),multiply(X0,X2))),inverse(multiply(X1,multiply(inverse(X1),X1))))) = X2,
inference(superposition,[status(thm)],[c_131,c_131]) ).
tcf(c_421,plain,
! [X0: $i,X1: $i,X2: $i] : multiply(inverse(multiply(X0,X1)),inverse(multiply(X2,inverse(multiply(multiply(X0,X2),multiply(inverse(multiply(X0,X2)),multiply(X0,X2))))))) = inverse(multiply(X1,multiply(inverse(X1),X1))),
inference(superposition,[status(thm)],[c_386,c_51]) ).
tcf(c_432,plain,
! [X0: $i,X1: $i,X2: $i,X3: $i] : multiply(inverse(multiply(X0,X1)),multiply(X0,X2)) = multiply(inverse(multiply(X3,X1)),multiply(X3,X2)),
inference(superposition,[status(thm)],[c_386,c_120]) ).
tcf(c_631,plain,
! [X0: $i,X1: $i,X2: $i,X3: $i,X4: $i] : multiply(inverse(multiply(X0,inverse(multiply(X1,multiply(inverse(X1),X1))))),multiply(X0,X2)) = multiply(X3,multiply(inverse(multiply(inverse(multiply(X4,X1)),multiply(X4,X3))),X2)),
inference(superposition,[status(thm)],[c_386,c_432]) ).
tcf(c_1193,plain,
! [X0: $i,X1: $i,X2: $i] : multiply(inverse(multiply(inverse(multiply(X0,X1)),multiply(X0,inverse(X2)))),inverse(multiply(X1,multiply(inverse(X1),X1)))) = X2,
inference(superposition,[status(thm)],[c_421,c_120]) ).
tcf(c_5139,plain,
! [X0: $i,X1: $i,X2: $i] : multiply(inverse(multiply(X0,inverse(multiply(X1,multiply(inverse(X1),X1))))),multiply(X0,inverse(multiply(X1,multiply(inverse(X1),X1))))) = multiply(inverse(X2),X2),
inference(superposition,[status(thm)],[c_1193,c_631]) ).
tcf(c_6103,plain,
! [X0: $i,X1: $i] : multiply(inverse(X0),X0) = multiply(inverse(X1),X1),
inference(superposition,[status(thm)],[c_5139,c_5139]) ).
tcf(c_6200,plain,
$false,
inference(backward_subsumption_resolution,[status(thm)],[c_52,c_6103]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : GRP403-1 : TPTP v9.3.1. Released v2.6.0.
% 0.00/0.04 % Command : run_iprover 300 /export/starexec/sandbox2/benchmark/theBenchmark.p THM
% 0.09/0.36 % Computer : n007.cluster.edu
% 0.09/0.36 % Model : x86_64 x86_64
% 0.09/0.36 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.09/0.36 % Memory : 8046.5625MB
% 0.09/0.36 % OS : Linux 6.8.0-71-generic
% 0.09/0.36 % CPULimit : 300
% 0.09/0.36 % WCLimit : 300
% 0.09/0.36 % DateTime : Wed Sep 23 14:38:37 UTC 2026
% 0.09/0.36 % CPUTime :
% 0.09/0.36 Running run_iprover 300 /export/starexec/sandbox2/benchmark/theBenchmark.p THM
% 0.09/0.39 Running UEQ theorem proving
% 0.09/0.39 Running: /export/starexec/sandbox2/solver/bin/iproveropt-multi-core.sh -d -n -l tptp -s ueq_schedule -t 300 /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.09/0.40
% 0.09/0.40 % ======== iProver multi-core TPTP/SMT =========
% 0.09/0.40
% 0.09/0.40 % Detected problem language: tptp
% 0.09/0.42 % Proving...
% 3.75/1.18 WARNING - Clausifier option not provided in the heuristic config "heur/vip2_118404", setting default options.
% 3.75/1.18 % SZS status Started for theBenchmark.p
% 3.75/1.18 % SZS status Unsatisfiable for theBenchmark.p
% 3.75/1.18
% 3.75/1.18 %---------------- iProver v3.9.4 (pre CASC 2026/SMT-COMP 2026) ----------------%
% 3.75/1.18
% 3.75/1.18 % ------ iProver source info
% 3.75/1.18
% 3.75/1.18 % git: date: 2026-07-19 20:42:38 +0200
% 3.75/1.18 % git: sha1: 804e7d636a263075307957e923b7a22a4035de61
% 3.75/1.18 % git: non_committed_changes: false
% 3.75/1.18
% 3.75/1.18 % ------ Parsing...% successful
% 3.75/1.18
% 3.75/1.18
% 3.75/1.18 % ------ Clausification by vclausify_rel & Parsing by iProver...%
% 3.75/1.18
% 3.75/1.18 % ------ Preprocessing... sup_sim: 0 sf_s rm: 0 0s sf_e pe_s pe_e %
% 3.75/1.18
% 3.75/1.18 % ------ Preprocessing... gs_s sp: 0 0s gs_e snvd_s sp: 0 0s snvd_e %
% 3.75/1.18
% 3.75/1.18 % ------ Preprocessing... sf_s rm: 0 0s sf_e
% 3.75/1.18 % ------ Proving...
% 3.75/1.18 % ------ Problem Properties
% 3.75/1.18
% 3.75/1.18 %
% 3.75/1.18 % clauses 2
% 3.75/1.18 % conjectures 1
% 3.75/1.18 % EPR 0
% 3.75/1.18 % Horn 2
% 3.75/1.18 % unary 2
% 3.75/1.18 % binary 0
% 3.75/1.18 % lits 2
% 3.75/1.18 % lits eq 2
% 3.75/1.18 % fd_pure 0
% 3.75/1.18 % fd_pseudo 0
% 3.75/1.18 % fd_cond 0
% 3.75/1.18 % fd_pseudo_cond 0
% 3.75/1.18 % AC symbols 0
% 3.75/1.18
% 3.75/1.18 % ------ Input Options Time Limit: Unbounded
% 3.75/1.18
% 3.75/1.18
% 3.75/1.18 % ------
% 3.75/1.18 % Current options:
% 3.75/1.18 % ------
% 3.75/1.18
% 3.75/1.18
% 3.75/1.18 %
% 3.75/1.18
% 3.75/1.18 % ------ Proving...
% 3.75/1.18 %
% 3.75/1.18
% 3.75/1.18 % SZS status Unsatisfiable for theBenchmark.p
% 3.75/1.18
% 3.75/1.18 % SZS output start CNFRefutation for theBenchmark.p
% See solution above
% 3.75/1.19
% 3.75/1.19
%------------------------------------------------------------------------------