%------------------------------------------------------------------------------
% File : Leo-III---1.8.0
% Problem : COL116-2 : TPTP v9.3.1. Released v3.2.0.
% Transfm : none
% Format : tptp:raw
% Command : java -Xss128m -Xmx2g -Xms1g -jar /export/starexec/sandbox/solver/bin/leo3.jar /export/starexec/sandbox/benchmark/theBenchmark.p -t 300 -p --atp eprover=/export/starexec/sandbox/solver/bin/externals/eprover --instantiate 39
% Computer : n017.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 : Sun Sep 27 06:56:33 AM UTC 2026
% Result : Unsatisfiable 2.85s 7.64s
% Output : Refutation 2.85s
% Verified :
% SZS Type : Refutation
% Derivation depth : 2
% Number of leaves : 2
% Syntax : Number of formulae : 5 ( 5 unt; 0 typ; 0 def)
% Number of atoms : 5 ( 0 equ; 0 cnn)
% Maximal formula atoms : 1 ( 1 avg)
% Number of connectives : 50 ( 2 ~; 0 |; 0 &; 48 @)
% ( 0 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 14 ( 9 avg)
% Number of types : 2 ( 0 usr)
% Number of type conns : 0 ( 0 >; 0 *; 0 +; 0 <<)
% Number of symbols : 10 ( 9 usr; 6 con; 0-4 aty)
% Number of variables : 4 ( 0 ^; 4 !; 0 ?; 4 :)
% Comments :
%------------------------------------------------------------------------------
thf(c_in_decl,type,
c_in: $i > $i > $i > $o ).
thf(c_Pair_decl,type,
c_Pair: $i > $i > $i > $i > $i ).
thf(c_Comb_Ocomb_Oop_A_D_D_decl,type,
c_Comb_Ocomb_Oop_A_D_D: $i > $i > $i ).
thf(v_xb_decl,type,
v_xb: $i ).
thf(v_z_decl,type,
v_z: $i ).
thf(v_yb_decl,type,
v_yb: $i ).
thf(tc_Comb_Ocomb_decl,type,
tc_Comb_Ocomb: $i ).
thf(c_Comb_Oparcontract_decl,type,
c_Comb_Oparcontract: $i ).
thf(tc_prod_decl,type,
tc_prod: $i > $i > $i ).
thf(1,negated_conjecture,
! [A: $i] :
~ ( tc_Comb_Ocomb @ ( tc_Comb_Ocomb @ tc_prod ) @ ( c_Comb_Oparcontract @ ( tc_Comb_Ocomb @ ( tc_Comb_Ocomb @ ( A @ ( v_z @ ( v_yb @ c_Comb_Ocomb_Oop_A_D_D ) @ ( v_z @ ( v_xb @ c_Comb_Ocomb_Oop_A_D_D ) @ c_Comb_Ocomb_Oop_A_D_D ) @ c_Pair ) ) ) @ c_in ) ) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',cls_conjecture_0) ).
thf(3,plain,
! [A: $i] :
~ ( tc_Comb_Ocomb @ ( tc_Comb_Ocomb @ tc_prod ) @ ( c_Comb_Oparcontract @ ( tc_Comb_Ocomb @ ( tc_Comb_Ocomb @ ( A @ ( v_z @ ( v_yb @ c_Comb_Ocomb_Oop_A_D_D ) @ ( v_z @ ( v_xb @ c_Comb_Ocomb_Oop_A_D_D ) @ c_Comb_Ocomb_Oop_A_D_D ) @ c_Pair ) ) ) @ c_in ) ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[1]) ).
thf(2,axiom,
! [A: $i] : ( tc_Comb_Ocomb @ ( tc_Comb_Ocomb @ tc_prod ) @ ( c_Comb_Oparcontract @ ( tc_Comb_Ocomb @ ( tc_Comb_Ocomb @ ( A @ ( A @ c_Pair ) ) ) @ c_in ) ) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',cls_Comb_Oparcontract_Ointros__1_0) ).
thf(5,plain,
! [A: $i] : ( tc_Comb_Ocomb @ ( tc_Comb_Ocomb @ tc_prod ) @ ( c_Comb_Oparcontract @ ( tc_Comb_Ocomb @ ( tc_Comb_Ocomb @ ( A @ ( A @ c_Pair ) ) ) @ c_in ) ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[2]) ).
thf(6,plain,
$false,
inference(e,[status(thm)],[3,5]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.02 % Problem : COL116-2 : TPTP v9.3.1. Released v3.2.0.
% 0.00/0.08 % Command : java -Xss128m -Xmx2g -Xms1g -jar /export/starexec/sandbox/solver/bin/leo3.jar /export/starexec/sandbox/benchmark/theBenchmark.p -t 300 -p --atp eprover=/export/starexec/sandbox/solver/bin/externals/eprover --instantiate 39
% 0.15/5.43 % Computer : n017.cluster.edu
% 0.15/5.43 % Model : x86_64 x86_64
% 0.15/5.43 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.15/5.43 % Memory : 8046.5625MB
% 0.15/5.43 % OS : Linux 6.8.0-71-generic
% 0.15/5.43 % CPULimit : 300
% 0.15/5.43 % WCLimit : 300
% 0.15/5.43 % DateTime : Sat Sep 26 23:12:24 UTC 2026
% 0.15/5.44 % CPUTime :
% 0.15/5.44 Running java -Xss128m -Xmx2g -Xms1g -jar /export/starexec/sandbox/solver/bin/leo3.jar /export/starexec/sandbox/benchmark/theBenchmark.p -t 300 -p --atp eprover=/export/starexec/sandbox/solver/bin/externals/eprover --instantiate 39
% 0.80/6.16 % [INFO] Parsing problem /export/starexec/sandbox/benchmark/theBenchmark.p ...
% 1.12/6.37 % [INFO] Parsing done (211ms).
% 1.12/6.39 % [INFO] Running in sequential loop mode.
% 1.70/6.87 % [INFO] eprover registered as external prover.
% 1.70/6.88 % [INFO] Scanning for conjecture ...
% 1.88/7.00 % [INFO] Found a conjecture (or negated_conjecture) and 1 axioms. Running axiom selection ...
% 1.88/7.05 % [INFO] Axiom selection finished. Selected 1 axioms (removed 0 axioms).
% 1.88/7.06 % [INFO] Problem is propositional (TPTP CNF).
% 1.88/7.06 % [INFO] Type checking passed.
% 2.06/7.07 % [CONFIG] Using configuration: timeout(300) with strategy<name(default),share(1.0),primSubst(3),sos(false),unifierCount(4),uniDepth(8),boolExt(true),choice(true),renaming(true),funcspec(false), domConstr(0),specialInstances(39),restrictUniAttempts(true),termOrdering(CPO)>. Searching for refutation ...
% 2.85/7.63 % External prover 'e' found a proof!
% 2.85/7.64 % [INFO] Killing All external provers ...
% 2.85/7.64 % Time passed: 1991ms (effective reasoning time: 1237ms)
% 2.85/7.64 % Axioms used in derivation (1): cls_Comb_Oparcontract_Ointros__1_0
% 2.85/7.64 % No. of inferences in proof: 5
% 2.85/7.64 % SZS status Unsatisfiable for /export/starexec/sandbox/benchmark/theBenchmark.p : 1991 ms resp. 1237 ms w/o parsing
% 2.85/7.68 % SZS output start Refutation for /export/starexec/sandbox/benchmark/theBenchmark.p
% See solution above
% 2.85/7.68 % [INFO] Killing All external provers ...
%------------------------------------------------------------------------------