%------------------------------------------------------------------------------
% File : iProver---3.9.4
% Problem : COL111-2 : TPTP v9.3.1. Released v3.2.0.
% Transfm : none
% Format : tptp:raw
% Command : run_iprover 300 /export/starexec/sandbox2/benchmark/theBenchmark.p THM
% Computer : n005.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 01:02:54 PM UTC 2026
% Result : Unsatisfiable 0.29s 1.12s
% Output : CNFRefutation 0.29s
% Verified :
% SZS Type : Refutation
% Derivation depth : 5
% Number of leaves : 5
% Syntax : Number of formulae : 14 ( 10 unt; 2 def)
% Number of atoms : 29 ( 2 equ)
% Maximal formula atoms : 2 ( 2 avg)
% Number of connectives : 13 ( 9 ~; 4 |; 0 &)
% ( 0 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 4 ( 2 avg)
% Maximal term depth : 2 ( 1 avg)
% Number of types : 1 ( 0 usr)
% Number of type conns : 0 ( 0 >; 0 *; 0 +; 0 <<)
% Number of predicates : 5 ( 3 usr; 3 prp; 0-3 aty)
% Number of functors : 6 ( 6 usr; 4 con; 0-4 aty)
% Number of variables : 6 ( 0 sgn 6 !; 0 ?; 4 :)
% Comments :
%------------------------------------------------------------------------------
fof(f1,negated_conjecture,
c_in(c_Pair(v_x,v_y_H,tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,tc_prod(tc_Comb_Ocomb,tc_Comb_Ocomb)),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',cls_conjecture_0) ).
fof(f2,negated_conjecture,
! [X0] :
( ~ c_in(c_Pair(v_x,X0,tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,tc_prod(tc_Comb_Ocomb,tc_Comb_Ocomb))
| ~ c_in(c_Pair(v_y_H,X0,tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,tc_prod(tc_Comb_Ocomb,tc_Comb_Ocomb)) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',cls_conjecture_1) ).
fof(f3,axiom,
! [X0] : c_in(c_Pair(X0,X0,tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,tc_prod(tc_Comb_Ocomb,tc_Comb_Ocomb)),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',cls_Comb_Oparcontract_Ointros__1_0) ).
tcf(c_52,negated_conjecture,
c_in(c_Pair(v_x,v_y_H,tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,tc_prod(tc_Comb_Ocomb,tc_Comb_Ocomb)),
inference(cnf_transformation,[],[f1]) ).
tcf(c_53,negated_conjecture,
! [X0: $i] :
( ~ c_in(c_Pair(v_y_H,X0,tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,tc_prod(tc_Comb_Ocomb,tc_Comb_Ocomb))
| ~ c_in(c_Pair(v_x,X0,tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,tc_prod(tc_Comb_Ocomb,tc_Comb_Ocomb)) ),
inference(cnf_transformation,[],[f2]) ).
tcf(c_54,plain,
! [X0: $i] : c_in(c_Pair(X0,X0,tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,tc_prod(tc_Comb_Ocomb,tc_Comb_Ocomb)),
inference(cnf_transformation,[],[f3]) ).
tcf(c_65,definition,
iPr_def_10 = tc_prod(tc_Comb_Ocomb,tc_Comb_Ocomb),
introduced(definition,[new_symbols(definition,[iPr_def_10])],[]) ).
tcf(c_66,definition,
iPr_def_11 = c_Pair(v_x,v_y_H,tc_Comb_Ocomb,tc_Comb_Ocomb),
introduced(definition,[new_symbols(definition,[iPr_def_11])],[]) ).
tcf(c_67,negated_conjecture,
! [X0: $i] :
( ~ c_in(c_Pair(v_y_H,X0,tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,iPr_def_10)
| ~ c_in(c_Pair(v_x,X0,tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,iPr_def_10) ),
inference(demodulation,[status(thm)],[c_53,c_65]) ).
tcf(c_68,negated_conjecture,
c_in(iPr_def_11,c_Comb_Oparcontract,iPr_def_10),
inference(demodulation,[status(thm)],[c_52,c_66]) ).
tcf(c_176,plain,
( ~ c_in(iPr_def_11,c_Comb_Oparcontract,iPr_def_10)
| ~ c_in(c_Pair(v_y_H,v_y_H,tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,iPr_def_10) ),
inference(superposition,[status(thm)],[c_66,c_67]) ).
tcf(c_177,plain,
~ c_in(c_Pair(v_y_H,v_y_H,tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,iPr_def_10),
inference(forward_subsumption_resolution,[status(thm)],[c_176,c_68]) ).
tcf(c_178,plain,
! [X0: $i] : c_in(c_Pair(X0,X0,tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,iPr_def_10),
inference(light_normalisation,[status(thm)],[c_54,c_65]) ).
tcf(c_179,plain,
$false,
inference(backward_subsumption_resolution,[status(thm)],[c_177,c_178]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.02 % Problem : COL111-2 : TPTP v9.3.1. Released v3.2.0.
% 0.00/0.03 % Command : run_iprover 300 /export/starexec/sandbox2/benchmark/theBenchmark.p THM
% 0.07/0.32 % Computer : n005.cluster.edu
% 0.07/0.32 % Model : x86_64 x86_64
% 0.07/0.32 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.07/0.32 % Memory : 8046.5625MB
% 0.07/0.32 % OS : Linux 6.8.0-71-generic
% 0.07/0.32 % CPULimit : 300
% 0.07/0.32 % WCLimit : 300
% 0.07/0.32 % DateTime : Fri Sep 25 07:37:32 UTC 2026
% 0.07/0.32 % CPUTime :
% 0.07/0.33 Running run_iprover 300 /export/starexec/sandbox2/benchmark/theBenchmark.p THM
% 0.07/0.36 Running first-order theorem proving
% 0.07/0.36 Running: /export/starexec/sandbox2/solver/bin/iproveropt-multi-core.sh -d -n -l tptp -s fof_schedule -t 300 /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.12/0.37
% 0.12/0.37 % ======== iProver multi-core TPTP/SMT =========
% 0.12/0.37
% 0.12/0.37 % Detected problem language: tptp
% 0.12/0.38 % Proving...
% 0.29/1.12 % SZS status Started for theBenchmark.p
% 0.29/1.12 % SZS status Unsatisfiable for theBenchmark.p
% 0.29/1.12
% 0.29/1.12 %---------------- iProver v3.9.4 (pre CASC 2026/SMT-COMP 2026) ----------------%
% 0.29/1.12
% 0.29/1.12 % ------ iProver source info
% 0.29/1.12
% 0.29/1.12 % git: date: 2026-07-19 20:42:38 +0200
% 0.29/1.12 % git: sha1: 804e7d636a263075307957e923b7a22a4035de61
% 0.29/1.12 % git: non_committed_changes: false
% 0.29/1.12
% 0.29/1.12 % ------ Parsing...% successful
% 0.29/1.12
% 0.29/1.12
% 0.29/1.12 % ------ Clausification by vclausify_rel & Parsing by iProver...%
% 0.29/1.12
% 0.29/1.12 % ------ Preprocessing... sf_s rm: 0 0s sf_e pe_s pe_e %
% 0.29/1.12
% 0.29/1.12 % ------ Preprocessing... gs_s sp: 0 0s gs_e snvd_s sp: 0 0s snvd_e %
% 0.29/1.12
% 0.29/1.12 % ------ Preprocessing... sf_s rm: 1 0s sf_e sf_s rm: 0 0s sf_e
% 0.29/1.12 % ------ Proving...
% 0.29/1.12 % ------ Problem Properties
% 0.29/1.12
% 0.29/1.12 %
% 0.29/1.12 % clauses 5
% 0.29/1.12 % conjectures 2
% 0.29/1.12 % EPR 1
% 0.29/1.12 % Horn 5
% 0.29/1.12 % unary 4
% 0.29/1.12 % binary 1
% 0.29/1.12 % lits 6
% 0.29/1.12 % lits eq 2
% 0.29/1.12 % fd_pure 0
% 0.29/1.12 % fd_pseudo 0
% 0.29/1.12 % fd_cond 0
% 0.29/1.12 % fd_pseudo_cond 0
% 0.29/1.12 % AC symbols 0
% 0.29/1.12
% 0.29/1.12 % ------ Schedule dynamic 5 is on
% 0.29/1.12
% 0.29/1.12 % ------ Input Options "--resolution_flag false --inst_lit_sel_side none" Time Limit: 10.
% 0.29/1.12
% 0.29/1.12
% 0.29/1.12 % ------
% 0.29/1.12 % Current options:
% 0.29/1.12 % ------
% 0.29/1.12
% 0.29/1.12
% 0.29/1.12 %
% 0.29/1.12
% 0.29/1.12 % ------ Proving...
% 0.29/1.12 %
% 0.29/1.12
% 0.29/1.12 % SZS status Unsatisfiable for theBenchmark.p
% 0.29/1.12
% 0.29/1.12 % SZS output start CNFRefutation for theBenchmark.p
% See solution above
% 0.29/1.12
% 0.29/1.12
%------------------------------------------------------------------------------