%------------------------------------------------------------------------------
% File : iProver---3.9.4
% Problem : LAT086-1 : TPTP v9.3.1. Released v2.6.0.
% Transfm : none
% Format : tptp:raw
% Command : run_iprover 300 /export/starexec/sandbox/benchmark/theBenchmark.p THM
% Computer : n015.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 01:58:13 PM UTC 2026
% Result : Unsatisfiable 27.71s 4.26s
% Output : CNFRefutation 27.71s
% Verified :
% SZS Type : Refutation
% Derivation depth : 32
% Number of leaves : 2
% Syntax : Number of formulae : 57 ( 57 unt; 0 def)
% Number of atoms : 57 ( 56 equ)
% Maximal formula atoms : 1 ( 1 avg)
% Number of connectives : 3 ( 3 ~; 0 |; 0 &)
% ( 0 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 11 ( 4 avg)
% Maximal term depth : 14 ( 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 : 4 ( 4 usr; 2 con; 0-2 aty)
% Number of variables : 158 ( 0 sgn 158 !; 0 ?; 151 :)
% Comments :
%------------------------------------------------------------------------------
fof(f1,axiom,
! [X2,X3,X0,X1,X6,X4,X5] : join(meet(join(meet(X0,X1),meet(X1,join(X0,X1))),X2),meet(join(meet(X0,join(join(meet(X3,X1),meet(X1,X4)),X1)),meet(join(meet(X1,meet(meet(join(X3,join(X1,X4)),join(X5,X1)),X1)),meet(X6,join(X1,meet(meet(join(X3,join(X1,X4)),join(X5,X1)),X1)))),join(X0,join(join(meet(X3,X1),meet(X1,X4)),X1)))),join(join(meet(X0,X1),meet(X1,join(X0,X1))),X2))) = X1,
file('/export/starexec/sandbox/benchmark/theBenchmark.p',single_axiom) ).
fof(f2,negated_conjecture,
meet(a,join(a,b)) != a,
file('/export/starexec/sandbox/benchmark/theBenchmark.p',prove_normal_axioms_7) ).
fof(f3,plain,
a != meet(a,join(a,b)),
inference(reorient_equations,[],[f2]) ).
tcf(c_51,plain,
! [X0: $i,X1: $i,X2: $i,X3: $i,X4: $i,X5: $i,X6: $i] : join(meet(join(meet(X0,X1),meet(X1,join(X0,X1))),X2),meet(join(meet(X0,join(join(meet(X3,X1),meet(X1,X4)),X1)),meet(join(meet(X1,meet(meet(join(X3,join(X1,X4)),join(X5,X1)),X1)),meet(X6,join(X1,meet(meet(join(X3,join(X1,X4)),join(X5,X1)),X1)))),join(X0,join(join(meet(X3,X1),meet(X1,X4)),X1)))),join(join(meet(X0,X1),meet(X1,join(X0,X1))),X2))) = X1,
inference(cnf_transformation,[],[f1]) ).
tcf(c_52,negated_conjecture,
meet(a,join(a,b)) != a,
inference(cnf_transformation,[],[f3]) ).
tcf(c_132,plain,
! [X0: $i,X1: $i,X2: $i,X3: $i,X4: $i,X5: $i] : join(meet(join(meet(X0,join(meet(X1,X2),meet(X2,join(X1,X2)))),meet(join(meet(X1,X2),meet(X2,join(X1,X2))),join(X0,join(meet(X1,X2),meet(X2,join(X1,X2)))))),X3),meet(join(meet(X0,join(join(meet(X4,join(meet(X1,X2),meet(X2,join(X1,X2)))),meet(join(meet(X1,X2),meet(X2,join(X1,X2))),X5)),join(meet(X1,X2),meet(X2,join(X1,X2))))),meet(X2,join(X0,join(join(meet(X4,join(meet(X1,X2),meet(X2,join(X1,X2)))),meet(join(meet(X1,X2),meet(X2,join(X1,X2))),X5)),join(meet(X1,X2),meet(X2,join(X1,X2))))))),join(join(meet(X0,join(meet(X1,X2),meet(X2,join(X1,X2)))),meet(join(meet(X1,X2),meet(X2,join(X1,X2))),join(X0,join(meet(X1,X2),meet(X2,join(X1,X2)))))),X3))) = join(meet(X1,X2),meet(X2,join(X1,X2))),
inference(superposition,[status(thm)],[c_51,c_51]) ).
tcf(c_249,plain,
! [X0: $i,X1: $i,X2: $i,X3: $i,X4: $i,X5: $i,X6: $i,X7: $i,X8: $i,X9: $i] : join(meet(join(meet(X0,X1),meet(X1,join(X0,X1))),X2),meet(join(meet(X0,join(join(meet(X3,X1),meet(X1,X4)),X1)),meet(join(meet(X5,join(join(meet(X6,X1),meet(X1,X7)),X1)),meet(join(meet(X1,meet(meet(join(X6,join(X1,X7)),join(X8,X1)),X1)),meet(X9,join(X1,meet(meet(join(X6,join(X1,X7)),join(X8,X1)),X1)))),join(X5,join(join(meet(X6,X1),meet(X1,X7)),X1)))),join(X0,join(join(meet(X3,X1),meet(X1,X4)),X1)))),join(join(meet(X0,X1),meet(X1,join(X0,X1))),X2))) = X1,
inference(superposition,[status(thm)],[c_51,c_132]) ).
tcf(c_352,plain,
! [X0: $i,X1: $i,X2: $i] : join(meet(join(meet(join(meet(X0,X1),meet(X1,join(X0,X1))),X1),meet(X1,join(join(meet(X0,X1),meet(X1,join(X0,X1))),X1))),X2),meet(X1,join(join(meet(join(meet(X0,X1),meet(X1,join(X0,X1))),X1),meet(X1,join(join(meet(X0,X1),meet(X1,join(X0,X1))),X1))),X2))) = X1,
inference(superposition,[status(thm)],[c_51,c_249]) ).
tcf(c_449,plain,
! [X0: $i,X1: $i,X2: $i,X3: $i,X4: $i] : join(meet(join(meet(X0,X1),meet(X1,join(X0,X1))),X2),meet(join(meet(X0,join(join(meet(X3,X1),meet(X1,X4)),X1)),meet(X1,join(X0,join(join(meet(X3,X1),meet(X1,X4)),X1)))),join(join(meet(X0,X1),meet(X1,join(X0,X1))),X2))) = X1,
inference(superposition,[status(thm)],[c_352,c_132]) ).
tcf(c_457,plain,
! [X0: $i,X1: $i,X2: $i,X3: $i,X4: $i,X5: $i,X6: $i,X7: $i,X8: $i] : join(meet(join(meet(X0,X1),meet(X1,join(X0,X1))),X2),meet(join(meet(X0,join(join(meet(X3,X1),meet(X1,X4)),X1)),meet(join(meet(X1,meet(meet(join(X5,join(X1,X6)),join(X7,X1)),X1)),meet(X8,join(X1,meet(meet(join(X5,join(X1,X6)),join(X7,X1)),X1)))),join(X0,join(join(meet(X3,X1),meet(X1,X4)),X1)))),join(join(meet(X0,X1),meet(X1,join(X0,X1))),X2))) = X1,
inference(superposition,[status(thm)],[c_352,c_249]) ).
tcf(c_459,plain,
! [X0: $i,X1: $i] : join(meet(X0,X1),meet(X0,join(X0,X1))) = X0,
inference(superposition,[status(thm)],[c_352,c_352]) ).
tcf(c_697,plain,
! [X0: $i,X1: $i] : join(meet(meet(X0,X1),meet(X0,join(X0,X1))),meet(meet(X0,X1),X0)) = meet(X0,X1),
inference(superposition,[status(thm)],[c_459,c_459]) ).
tcf(c_962,plain,
! [X0: $i,X1: $i,X2: $i,X3: $i,X4: $i] : join(meet(join(meet(join(meet(X0,X1),meet(X1,join(X0,X1))),join(meet(X0,join(join(meet(X2,X1),meet(X1,X3)),X1)),meet(X1,join(X0,join(join(meet(X2,X1),meet(X1,X3)),X1))))),meet(join(meet(X0,join(join(meet(X2,X1),meet(X1,X3)),X1)),meet(X1,join(X0,join(join(meet(X2,X1),meet(X1,X3)),X1)))),join(join(meet(X0,X1),meet(X1,join(X0,X1))),join(meet(X0,join(join(meet(X2,X1),meet(X1,X3)),X1)),meet(X1,join(X0,join(join(meet(X2,X1),meet(X1,X3)),X1))))))),X4),meet(X1,join(join(meet(join(meet(X0,X1),meet(X1,join(X0,X1))),join(meet(X0,join(join(meet(X2,X1),meet(X1,X3)),X1)),meet(X1,join(X0,join(join(meet(X2,X1),meet(X1,X3)),X1))))),meet(join(meet(X0,join(join(meet(X2,X1),meet(X1,X3)),X1)),meet(X1,join(X0,join(join(meet(X2,X1),meet(X1,X3)),X1)))),join(join(meet(X0,X1),meet(X1,join(X0,X1))),join(meet(X0,join(join(meet(X2,X1),meet(X1,X3)),X1)),meet(X1,join(X0,join(join(meet(X2,X1),meet(X1,X3)),X1))))))),X4))) = join(meet(X0,join(join(meet(X2,X1),meet(X1,X3)),X1)),meet(X1,join(X0,join(join(meet(X2,X1),meet(X1,X3)),X1)))),
inference(superposition,[status(thm)],[c_449,c_449]) ).
tcf(c_963,plain,
! [X0: $i,X1: $i,X2: $i,X3: $i] : join(meet(X0,join(join(meet(X1,X2),meet(X2,X3)),X2)),meet(X2,join(X0,join(join(meet(X1,X2),meet(X2,X3)),X2)))) = X2,
inference(demodulation,[status(thm)],[c_962,c_459,c_449]) ).
tcf(c_976,plain,
! [X0: $i,X1: $i,X2: $i] : join(meet(join(meet(X0,X1),meet(X1,join(X0,X1))),X2),meet(X1,join(join(meet(X0,X1),meet(X1,join(X0,X1))),X2))) = X1,
inference(demodulation,[status(thm)],[c_449,c_963]) ).
tcf(c_1056,plain,
! [X0: $i,X1: $i] : join(meet(X0,join(X1,X1)),meet(X1,join(X0,join(X1,X1)))) = X1,
inference(superposition,[status(thm)],[c_459,c_963]) ).
tcf(c_2139,plain,
! [X0: $i,X1: $i,X2: $i,X3: $i,X4: $i,X5: $i,X6: $i,X7: $i] : join(meet(X0,join(join(meet(X1,X2),meet(X2,X3)),X2)),meet(join(meet(X2,meet(meet(join(X4,join(X2,X5)),join(X6,X2)),X2)),meet(X7,join(X2,meet(meet(join(X4,join(X2,X5)),join(X6,X2)),X2)))),join(X0,join(join(meet(X1,X2),meet(X2,X3)),X2)))) = X2,
inference(superposition,[status(thm)],[c_457,c_1056]) ).
tcf(c_2470,plain,
! [X0: $i,X1: $i,X2: $i,X3: $i,X4: $i] : join(meet(X0,meet(meet(join(X1,join(X0,X2)),join(X3,X0)),X0)),meet(X4,join(X0,meet(meet(join(X1,join(X0,X2)),join(X3,X0)),X0)))) = X0,
inference(superposition,[status(thm)],[c_2139,c_459]) ).
tcf(c_4621,plain,
! [X0: $i,X1: $i] : join(meet(X0,X1),meet(X1,join(X0,X1))) = X1,
inference(superposition,[status(thm)],[c_2470,c_976]) ).
tcf(c_4670,plain,
! [X0: $i,X1: $i,X2: $i,X3: $i] : meet(meet(join(X0,join(X1,X2)),join(X3,X1)),X1) = X1,
inference(superposition,[status(thm)],[c_4621,c_2470]) ).
tcf(c_4673,plain,
! [X0: $i,X1: $i] : join(meet(X0,X0),meet(X1,join(X0,X0))) = X0,
inference(demodulation,[status(thm)],[c_2470,c_4670]) ).
tcf(c_4906,plain,
! [X0: $i] : join(X0,X0) = X0,
inference(superposition,[status(thm)],[c_4673,c_1056]) ).
tcf(c_4907,plain,
! [X0: $i,X1: $i,X2: $i] : join(join(meet(X0,X1),meet(X1,X2)),X1) = X1,
inference(superposition,[status(thm)],[c_4673,c_963]) ).
tcf(c_4908,plain,
! [X0: $i,X1: $i] : join(meet(X0,X0),meet(X1,X0)) = X0,
inference(demodulation,[status(thm)],[c_4673,c_4906]) ).
tcf(c_4925,plain,
! [X0: $i] : meet(X0,X0) = X0,
inference(superposition,[status(thm)],[c_4908,c_4906]) ).
tcf(c_4926,plain,
! [X0: $i,X1: $i] : join(X0,meet(X1,X0)) = X0,
inference(demodulation,[status(thm)],[c_4908,c_4925]) ).
tcf(c_4937,plain,
! [X0: $i,X1: $i] : join(meet(X0,meet(X1,X0)),meet(X0,X0)) = X0,
inference(superposition,[status(thm)],[c_4926,c_459]) ).
tcf(c_4938,plain,
! [X0: $i,X1: $i] : join(meet(X0,meet(X1,X0)),X0) = X0,
inference(demodulation,[status(thm)],[c_4937,c_4925]) ).
tcf(c_4956,plain,
! [X0: $i,X1: $i] : join(meet(X0,X1),X1) = X1,
inference(superposition,[status(thm)],[c_4926,c_4907]) ).
tcf(c_4957,plain,
! [X0: $i,X1: $i] : join(join(X0,meet(X0,X1)),X0) = X0,
inference(superposition,[status(thm)],[c_4925,c_4907]) ).
tcf(c_4988,plain,
! [X0: $i,X1: $i,X2: $i] : meet(meet(join(X0,X1),join(X2,X0)),X0) = X0,
inference(superposition,[status(thm)],[c_4906,c_4670]) ).
tcf(c_5012,plain,
! [X0: $i,X1: $i,X2: $i] : meet(meet(join(X0,join(X1,X2)),X1),X1) = X1,
inference(superposition,[status(thm)],[c_4938,c_4670]) ).
tcf(c_5034,plain,
! [X0: $i,X1: $i] : meet(meet(X0,join(X1,X0)),X0) = X0,
inference(superposition,[status(thm)],[c_4926,c_4988]) ).
tcf(c_5046,plain,
! [X0: $i,X1: $i] : meet(meet(join(X0,X1),X0),X0) = X0,
inference(superposition,[status(thm)],[c_4938,c_4988]) ).
tcf(c_5213,plain,
! [X0: $i,X1: $i] : join(join(meet(join(X0,X1),X0),X0),meet(join(X0,X1),X0)) = meet(join(X0,X1),X0),
inference(superposition,[status(thm)],[c_5046,c_4957]) ).
tcf(c_5224,plain,
! [X0: $i,X1: $i] : meet(join(X0,X1),X0) = X0,
inference(demodulation,[status(thm)],[c_5213,c_4926,c_4956]) ).
tcf(c_5275,plain,
! [X0: $i,X1: $i] : meet(X0,meet(X0,X1)) = meet(X0,X1),
inference(superposition,[status(thm)],[c_459,c_5224]) ).
tcf(c_5283,plain,
! [X0: $i,X1: $i] : meet(X0,meet(X1,X0)) = meet(X1,X0),
inference(superposition,[status(thm)],[c_4956,c_5224]) ).
tcf(c_5284,plain,
! [X0: $i,X1: $i] : meet(X0,join(X0,meet(X0,X1))) = join(X0,meet(X0,X1)),
inference(superposition,[status(thm)],[c_4957,c_5224]) ).
tcf(c_5288,plain,
! [X0: $i,X1: $i] : join(X0,meet(X0,join(join(X0,X1),X0))) = X0,
inference(superposition,[status(thm)],[c_5224,c_4621]) ).
tcf(c_5296,plain,
! [X0: $i,X1: $i] : meet(join(X0,X1),X1) = X1,
inference(superposition,[status(thm)],[c_5224,c_4670]) ).
tcf(c_5361,plain,
! [X0: $i,X1: $i] : join(X0,meet(X0,join(join(X1,X0),X0))) = X0,
inference(superposition,[status(thm)],[c_5296,c_4621]) ).
tcf(c_5463,plain,
! [X0: $i,X1: $i] : join(meet(meet(X0,X1),meet(X1,join(X1,meet(X0,X1)))),meet(meet(X0,X1),X1)) = meet(X0,X1),
inference(superposition,[status(thm)],[c_5283,c_697]) ).
tcf(c_5469,plain,
! [X0: $i,X1: $i] : meet(meet(X0,X1),X1) = meet(X0,X1),
inference(demodulation,[status(thm)],[c_5463,c_4906,c_4925,c_4926]) ).
tcf(c_5603,plain,
! [X0: $i,X1: $i,X2: $i] : meet(join(X0,join(X1,X2)),X1) = X1,
inference(superposition,[status(thm)],[c_5012,c_5469]) ).
tcf(c_5835,plain,
! [X0: $i,X1: $i] : join(meet(meet(X0,meet(X0,join(join(X0,X1),X0))),meet(X0,X0)),meet(meet(X0,meet(X0,join(join(X0,X1),X0))),X0)) = meet(X0,meet(X0,join(join(X0,X1),X0))),
inference(superposition,[status(thm)],[c_5288,c_697]) ).
tcf(c_5846,plain,
! [X0: $i,X1: $i] : meet(X0,join(join(X0,X1),X0)) = X0,
inference(demodulation,[status(thm)],[c_5835,c_4906,c_4925,c_5034,c_5275]) ).
tcf(c_5966,plain,
! [X0: $i,X1: $i] : join(meet(meet(X0,meet(X0,join(join(X1,X0),X0))),meet(X0,X0)),meet(meet(X0,meet(X0,join(join(X1,X0),X0))),X0)) = meet(X0,meet(X0,join(join(X1,X0),X0))),
inference(superposition,[status(thm)],[c_5361,c_697]) ).
tcf(c_5980,plain,
! [X0: $i,X1: $i] : meet(X0,join(join(X1,X0),X0)) = X0,
inference(demodulation,[status(thm)],[c_5966,c_4906,c_4925,c_5034,c_5275]) ).
tcf(c_7053,plain,
! [X0: $i,X1: $i] : join(join(X0,join(X0,meet(X0,X1))),X0) = X0,
inference(superposition,[status(thm)],[c_5284,c_4957]) ).
tcf(c_7382,plain,
! [X0: $i,X1: $i] : join(meet(join(X0,join(X0,meet(X0,X1))),X0),meet(join(X0,join(X0,meet(X0,X1))),X0)) = join(X0,join(X0,meet(X0,X1))),
inference(superposition,[status(thm)],[c_7053,c_459]) ).
tcf(c_7404,plain,
! [X0: $i,X1: $i] : join(X0,join(X0,meet(X0,X1))) = X0,
inference(demodulation,[status(thm)],[c_7382,c_4906,c_5603]) ).
tcf(c_7471,plain,
! [X0: $i,X1: $i] : meet(join(X0,meet(X0,X1)),X0) = join(X0,meet(X0,X1)),
inference(superposition,[status(thm)],[c_7404,c_5980]) ).
tcf(c_7478,plain,
! [X0: $i,X1: $i] : join(X0,meet(X0,X1)) = X0,
inference(demodulation,[status(thm)],[c_7471,c_5224]) ).
tcf(c_7506,plain,
! [X0: $i,X1: $i] : join(join(X0,X1),X0) = join(X0,X1),
inference(superposition,[status(thm)],[c_5224,c_7478]) ).
tcf(c_7548,plain,
! [X0: $i,X1: $i] : meet(X0,join(X0,X1)) = X0,
inference(demodulation,[status(thm)],[c_5846,c_7506]) ).
tcf(c_7549,plain,
$false,
inference(backward_subsumption_resolution,[status(thm)],[c_52,c_7548]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.02 % Problem : LAT086-1 : TPTP v9.3.1. Released v2.6.0.
% 0.00/0.04 % Command : run_iprover 300 /export/starexec/sandbox/benchmark/theBenchmark.p THM
% 0.11/0.36 % Computer : n015.cluster.edu
% 0.11/0.36 % Model : x86_64 x86_64
% 0.11/0.36 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.11/0.36 % Memory : 8046.5625MB
% 0.11/0.36 % OS : Linux 6.8.0-71-generic
% 0.11/0.36 % CPULimit : 300
% 0.11/0.36 % WCLimit : 300
% 0.11/0.36 % DateTime : Wed Sep 23 20:15:24 UTC 2026
% 0.11/0.37 % CPUTime :
% 0.11/0.37 Running run_iprover 300 /export/starexec/sandbox/benchmark/theBenchmark.p THM
% 0.15/0.40 Running UEQ theorem proving
% 0.15/0.40 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
% 0.15/0.41
% 0.15/0.41 % ======== iProver multi-core TPTP/SMT =========
% 0.15/0.41
% 0.15/0.41 % Detected problem language: tptp
% 0.15/0.42 % Proving...
% 27.71/4.26 WARNING - Clausifier option not provided in the heuristic config "heur/vip2_118404", setting default options.
% 27.71/4.26 % SZS status Started for theBenchmark.p
% 27.71/4.26 % SZS status Unsatisfiable for theBenchmark.p
% 27.71/4.26
% 27.71/4.26 %---------------- iProver v3.9.4 (pre CASC 2026/SMT-COMP 2026) ----------------%
% 27.71/4.26
% 27.71/4.26 % ------ iProver source info
% 27.71/4.26
% 27.71/4.26 % git: date: 2026-07-19 20:42:38 +0200
% 27.71/4.26 % git: sha1: 804e7d636a263075307957e923b7a22a4035de61
% 27.71/4.26 % git: non_committed_changes: false
% 27.71/4.26
% 27.71/4.26 % ------ Parsing...% successful
% 27.71/4.26
% 27.71/4.26
% 27.71/4.26 % ------ Clausification by vclausify_rel & Parsing by iProver...%
% 27.71/4.26
% 27.71/4.26 % ------ Preprocessing... sup_sim: 0 sf_s rm: 0 0s sf_e pe_s pe_e %
% 27.71/4.26
% 27.71/4.26 % ------ Preprocessing... gs_s sp: 0 0s gs_e snvd_s sp: 0 0s snvd_e %
% 27.71/4.26
% 27.71/4.26 % ------ Preprocessing... sf_s rm: 0 0s sf_e
% 27.71/4.26 % ------ Proving...
% 27.71/4.26 % ------ Problem Properties
% 27.71/4.26
% 27.71/4.26 %
% 27.71/4.26 % clauses 2
% 27.71/4.26 % conjectures 1
% 27.71/4.26 % EPR 0
% 27.71/4.26 % Horn 2
% 27.71/4.26 % unary 2
% 27.71/4.26 % binary 0
% 27.71/4.26 % lits 2
% 27.71/4.26 % lits eq 2
% 27.71/4.26 % fd_pure 0
% 27.71/4.26 % fd_pseudo 0
% 27.71/4.26 % fd_cond 0
% 27.71/4.26 % fd_pseudo_cond 0
% 27.71/4.26 % AC symbols 0
% 27.71/4.26
% 27.71/4.26 % ------ Input Options Time Limit: Unbounded
% 27.71/4.26
% 27.71/4.26
% 27.71/4.26 % ------
% 27.71/4.26 % Current options:
% 27.71/4.26 % ------
% 27.71/4.26
% 27.71/4.26
% 27.71/4.26 %
% 27.71/4.26
% 27.71/4.26 % ------ Proving...
% 27.71/4.26 %
% 27.71/4.26
% 27.71/4.26 % SZS status Unsatisfiable for theBenchmark.p
% 27.71/4.26
% 27.71/4.26 % SZS output start CNFRefutation for theBenchmark.p
% See solution above
% 27.71/4.26
% 27.71/4.26
%------------------------------------------------------------------------------