%------------------------------------------------------------------------------
% File : Leo-III---1.8.0
% Problem : SWV215+1 : TPTP v9.3.1. Bugfixed v3.3.0.
% Transfm : none
% Format : tptp:raw
% Command : java -Xss128m -Xmx2g -Xms1g -jar /export/starexec/sandbox2/solver/bin/leo3.jar /export/starexec/sandbox2/benchmark/theBenchmark.p -t 300 -p --atp eprover=/export/starexec/sandbox2/solver/bin/externals/eprover --instantiate 39
% Computer : n008.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 08:58:26 AM UTC 2026
% Result : Theorem 8.26s 8.44s
% Output : Refutation 8.26s
% Verified :
% SZS Type : Refutation
% Derivation depth : 11
% Number of leaves : 3
% Syntax : Number of formulae : 22 ( 15 unt; 0 typ; 2 def)
% Number of atoms : 471 ( 446 equ; 0 cnn)
% Maximal formula atoms : 75 ( 21 avg)
% Number of connectives : 773 ( 242 ~; 36 |; 401 &; 84 @)
% ( 0 <=>; 10 =>; 0 <=; 0 <~>)
% Maximal formula depth : 43 ( 9 avg)
% Number of types : 2 ( 0 usr)
% Number of type conns : 0 ( 0 >; 0 *; 0 +; 0 <<)
% Number of symbols : 16 ( 14 usr; 11 con; 0-2 aty)
% Number of variables : 9 ( 0 ^; 7 !; 0 ?; 9 :)
% ( 0 !>; 0 ?*; 0 @-; 2 @+)
% Comments :
%------------------------------------------------------------------------------
thf(leq_decl,type,
leq: $i > $i > $o ).
thf(n0_decl,type,
n0: $i ).
thf(n5_decl,type,
n5: $i ).
thf(n3_decl,type,
n3: $i ).
thf(n4_decl,type,
n4: $i ).
thf(n1_decl,type,
n1: $i ).
thf(n2_decl,type,
n2: $i ).
thf(times_decl,type,
times: $i > $i > $i ).
thf(divide_decl,type,
divide: $i > $i > $i ).
thf(n400_decl,type,
n400: $i ).
thf(a_select2_decl,type,
a_select2: $i > $i > $i ).
thf(sigma_decl,type,
sigma: $i ).
thf(sk1_decl,type,
sk1: $i ).
thf(sk2_decl,type,
sk2: $i ).
thf(sk1_def,definition,
( sk1
= ( @+[A: $i] :
~ ! [B: $i] :
( ( ( n5 @ ( B @ leq ) )
& ( n5 @ ( A @ leq ) )
& ( B @ ( n0 @ leq ) )
& ( A @ ( n0 @ leq ) ) )
=> ( ( ( n4 = B )
& ( n2 = B )
& ( n2 = A )
& ( n0 = A )
& ~ ( ( n5 = B )
& ( n5 = A ) )
& ~ ( ( n5 = A )
& ( n4 = B ) )
& ~ ( ( n5 = B )
& ( n4 = A ) )
& ~ ( ( n4 = B )
& ( n4 = A ) )
& ~ ( ( n5 = A )
& ( n3 = B ) )
& ~ ( ( n4 = A )
& ( n3 = B ) )
& ~ ( ( n5 = B )
& ( n3 = A ) )
& ~ ( ( n4 = B )
& ( n3 = A ) )
& ~ ( ( n3 = B )
& ( n3 = A ) )
& ~ ( ( n5 = A )
& ( n2 = B ) )
& ~ ( ( n4 = A )
& ( n2 = B ) )
& ~ ( ( n3 = A )
& ( n2 = B ) )
& ~ ( ( n5 = B )
& ( n2 = A ) )
& ~ ( ( n4 = B )
& ( n2 = A ) )
& ~ ( ( n3 = B )
& ( n2 = A ) )
& ~ ( ( n2 = B )
& ( n2 = A ) )
& ~ ( ( n5 = A )
& ( n1 = B ) )
& ~ ( ( n4 = A )
& ( n1 = B ) )
& ~ ( ( n3 = A )
& ( n1 = B ) )
& ~ ( ( n2 = A )
& ( n1 = B ) )
& ~ ( ( n5 = B )
& ( n1 = A ) )
& ~ ( ( n4 = B )
& ( n1 = A ) )
& ~ ( ( n3 = B )
& ( n1 = A ) )
& ~ ( ( n2 = B )
& ( n1 = A ) )
& ~ ( ( n1 = B )
& ( n1 = A ) )
& ~ ( ( n5 = A )
& ( n0 = B ) )
& ~ ( ( n4 = A )
& ( n0 = B ) )
& ~ ( ( n3 = A )
& ( n0 = B ) )
& ~ ( ( n2 = A )
& ( n0 = B ) )
& ~ ( ( n1 = A )
& ( n0 = B ) )
& ~ ( ( n5 = B )
& ( n0 = A ) )
& ~ ( ( n4 = B )
& ( n0 = A ) )
& ~ ( ( n3 = B )
& ( n0 = A ) ) )
=> ( n0
= ( n2 @ ( sigma @ a_select2 ) @ ( n400 @ ( n1 @ divide ) @ times ) ) ) ) ) ) ) ).
thf(sk2_def,definition,
( sk2
= ( @+[A: $i] :
~ ( ( ( n5 @ ( A @ leq ) )
& ( n5 @ ( sk1 @ leq ) )
& ( A @ ( n0 @ leq ) )
& ( sk1 @ ( n0 @ leq ) ) )
=> ( ( ( n4 = A )
& ( n2 = A )
& ( n2 = sk1 )
& ( n0 = sk1 )
& ~ ( ( n5 = A )
& ( n5 = sk1 ) )
& ~ ( ( n5 = sk1 )
& ( n4 = A ) )
& ~ ( ( n5 = A )
& ( n4 = sk1 ) )
& ~ ( ( n4 = A )
& ( n4 = sk1 ) )
& ~ ( ( n5 = sk1 )
& ( n3 = A ) )
& ~ ( ( n4 = sk1 )
& ( n3 = A ) )
& ~ ( ( n5 = A )
& ( n3 = sk1 ) )
& ~ ( ( n4 = A )
& ( n3 = sk1 ) )
& ~ ( ( n3 = A )
& ( n3 = sk1 ) )
& ~ ( ( n5 = sk1 )
& ( n2 = A ) )
& ~ ( ( n4 = sk1 )
& ( n2 = A ) )
& ~ ( ( n3 = sk1 )
& ( n2 = A ) )
& ~ ( ( n5 = A )
& ( n2 = sk1 ) )
& ~ ( ( n4 = A )
& ( n2 = sk1 ) )
& ~ ( ( n3 = A )
& ( n2 = sk1 ) )
& ~ ( ( n2 = A )
& ( n2 = sk1 ) )
& ~ ( ( n5 = sk1 )
& ( n1 = A ) )
& ~ ( ( n4 = sk1 )
& ( n1 = A ) )
& ~ ( ( n3 = sk1 )
& ( n1 = A ) )
& ~ ( ( n2 = sk1 )
& ( n1 = A ) )
& ~ ( ( n5 = A )
& ( n1 = sk1 ) )
& ~ ( ( n4 = A )
& ( n1 = sk1 ) )
& ~ ( ( n3 = A )
& ( n1 = sk1 ) )
& ~ ( ( n2 = A )
& ( n1 = sk1 ) )
& ~ ( ( n1 = A )
& ( n1 = sk1 ) )
& ~ ( ( n5 = sk1 )
& ( n0 = A ) )
& ~ ( ( n4 = sk1 )
& ( n0 = A ) )
& ~ ( ( n3 = sk1 )
& ( n0 = A ) )
& ~ ( ( n2 = sk1 )
& ( n0 = A ) )
& ~ ( ( n1 = sk1 )
& ( n0 = A ) )
& ~ ( ( n5 = A )
& ( n0 = sk1 ) )
& ~ ( ( n4 = A )
& ( n0 = sk1 ) )
& ~ ( ( n3 = A )
& ( n0 = sk1 ) ) )
=> ( n0
= ( n2 @ ( sigma @ a_select2 ) @ ( n400 @ ( n1 @ divide ) @ times ) ) ) ) ) ) ) ).
thf(1,conjecture,
! [A: $i,B: $i] :
( ( ( n5 @ ( B @ leq ) )
& ( n5 @ ( A @ leq ) )
& ( B @ ( n0 @ leq ) )
& ( A @ ( n0 @ leq ) ) )
=> ( ( ( n4 = B )
& ( n2 = B )
& ( n2 = A )
& ( n0 = A )
& ~ ( ( n5 = B )
& ( n5 = A ) )
& ~ ( ( n5 = A )
& ( n4 = B ) )
& ~ ( ( n5 = B )
& ( n4 = A ) )
& ~ ( ( n4 = B )
& ( n4 = A ) )
& ~ ( ( n5 = A )
& ( n3 = B ) )
& ~ ( ( n4 = A )
& ( n3 = B ) )
& ~ ( ( n5 = B )
& ( n3 = A ) )
& ~ ( ( n4 = B )
& ( n3 = A ) )
& ~ ( ( n3 = B )
& ( n3 = A ) )
& ~ ( ( n5 = A )
& ( n2 = B ) )
& ~ ( ( n4 = A )
& ( n2 = B ) )
& ~ ( ( n3 = A )
& ( n2 = B ) )
& ~ ( ( n5 = B )
& ( n2 = A ) )
& ~ ( ( n4 = B )
& ( n2 = A ) )
& ~ ( ( n3 = B )
& ( n2 = A ) )
& ~ ( ( n2 = B )
& ( n2 = A ) )
& ~ ( ( n5 = A )
& ( n1 = B ) )
& ~ ( ( n4 = A )
& ( n1 = B ) )
& ~ ( ( n3 = A )
& ( n1 = B ) )
& ~ ( ( n2 = A )
& ( n1 = B ) )
& ~ ( ( n5 = B )
& ( n1 = A ) )
& ~ ( ( n4 = B )
& ( n1 = A ) )
& ~ ( ( n3 = B )
& ( n1 = A ) )
& ~ ( ( n2 = B )
& ( n1 = A ) )
& ~ ( ( n1 = B )
& ( n1 = A ) )
& ~ ( ( n5 = A )
& ( n0 = B ) )
& ~ ( ( n4 = A )
& ( n0 = B ) )
& ~ ( ( n3 = A )
& ( n0 = B ) )
& ~ ( ( n2 = A )
& ( n0 = B ) )
& ~ ( ( n1 = A )
& ( n0 = B ) )
& ~ ( ( n5 = B )
& ( n0 = A ) )
& ~ ( ( n4 = B )
& ( n0 = A ) )
& ~ ( ( n3 = B )
& ( n0 = A ) ) )
=> ( n0
= ( n2 @ ( sigma @ a_select2 ) @ ( n400 @ ( n1 @ divide ) @ times ) ) ) ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',quaternion_ds1_symm_0161) ).
thf(2,negated_conjecture,
~ ! [A: $i,B: $i] :
( ( ( n5 @ ( B @ leq ) )
& ( n5 @ ( A @ leq ) )
& ( B @ ( n0 @ leq ) )
& ( A @ ( n0 @ leq ) ) )
=> ( ( ( n4 = B )
& ( n2 = B )
& ( n2 = A )
& ( n0 = A )
& ~ ( ( n5 = B )
& ( n5 = A ) )
& ~ ( ( n5 = A )
& ( n4 = B ) )
& ~ ( ( n5 = B )
& ( n4 = A ) )
& ~ ( ( n4 = B )
& ( n4 = A ) )
& ~ ( ( n5 = A )
& ( n3 = B ) )
& ~ ( ( n4 = A )
& ( n3 = B ) )
& ~ ( ( n5 = B )
& ( n3 = A ) )
& ~ ( ( n4 = B )
& ( n3 = A ) )
& ~ ( ( n3 = B )
& ( n3 = A ) )
& ~ ( ( n5 = A )
& ( n2 = B ) )
& ~ ( ( n4 = A )
& ( n2 = B ) )
& ~ ( ( n3 = A )
& ( n2 = B ) )
& ~ ( ( n5 = B )
& ( n2 = A ) )
& ~ ( ( n4 = B )
& ( n2 = A ) )
& ~ ( ( n3 = B )
& ( n2 = A ) )
& ~ ( ( n2 = B )
& ( n2 = A ) )
& ~ ( ( n5 = A )
& ( n1 = B ) )
& ~ ( ( n4 = A )
& ( n1 = B ) )
& ~ ( ( n3 = A )
& ( n1 = B ) )
& ~ ( ( n2 = A )
& ( n1 = B ) )
& ~ ( ( n5 = B )
& ( n1 = A ) )
& ~ ( ( n4 = B )
& ( n1 = A ) )
& ~ ( ( n3 = B )
& ( n1 = A ) )
& ~ ( ( n2 = B )
& ( n1 = A ) )
& ~ ( ( n1 = B )
& ( n1 = A ) )
& ~ ( ( n5 = A )
& ( n0 = B ) )
& ~ ( ( n4 = A )
& ( n0 = B ) )
& ~ ( ( n3 = A )
& ( n0 = B ) )
& ~ ( ( n2 = A )
& ( n0 = B ) )
& ~ ( ( n1 = A )
& ( n0 = B ) )
& ~ ( ( n5 = B )
& ( n0 = A ) )
& ~ ( ( n4 = B )
& ( n0 = A ) )
& ~ ( ( n3 = B )
& ( n0 = A ) ) )
=> ( n0
= ( n2 @ ( sigma @ a_select2 ) @ ( n400 @ ( n1 @ divide ) @ times ) ) ) ) ),
inference(neg_conjecture,[status(cth)],[1]) ).
thf(92,plain,
~ ! [A: $i,B: $i] :
( ( ( n5 @ ( B @ leq ) )
& ( n5 @ ( A @ leq ) )
& ( B @ ( n0 @ leq ) )
& ( A @ ( n0 @ leq ) ) )
=> ( ( ( n4 = B )
& ( n2 = B )
& ( n2 = A )
& ( n0 = A )
& ~ ( ( n5 = B )
& ( n5 = A ) )
& ~ ( ( n5 = A )
& ( n4 = B ) )
& ~ ( ( n5 = B )
& ( n4 = A ) )
& ~ ( ( n4 = B )
& ( n4 = A ) )
& ~ ( ( n5 = A )
& ( n3 = B ) )
& ~ ( ( n4 = A )
& ( n3 = B ) )
& ~ ( ( n5 = B )
& ( n3 = A ) )
& ~ ( ( n4 = B )
& ( n3 = A ) )
& ~ ( ( n3 = B )
& ( n3 = A ) )
& ~ ( ( n5 = A )
& ( n2 = B ) )
& ~ ( ( n4 = A )
& ( n2 = B ) )
& ~ ( ( n3 = A )
& ( n2 = B ) )
& ~ ( ( n5 = B )
& ( n2 = A ) )
& ~ ( ( n4 = B )
& ( n2 = A ) )
& ~ ( ( n3 = B )
& ( n2 = A ) )
& ~ ( ( n2 = B )
& ( n2 = A ) )
& ~ ( ( n5 = A )
& ( n1 = B ) )
& ~ ( ( n4 = A )
& ( n1 = B ) )
& ~ ( ( n3 = A )
& ( n1 = B ) )
& ~ ( ( n2 = A )
& ( n1 = B ) )
& ~ ( ( n5 = B )
& ( n1 = A ) )
& ~ ( ( n4 = B )
& ( n1 = A ) )
& ~ ( ( n3 = B )
& ( n1 = A ) )
& ~ ( ( n2 = B )
& ( n1 = A ) )
& ~ ( ( n1 = B )
& ( n1 = A ) )
& ~ ( ( n5 = A )
& ( n0 = B ) )
& ~ ( ( n4 = A )
& ( n0 = B ) )
& ~ ( ( n3 = A )
& ( n0 = B ) )
& ~ ( ( n2 = A )
& ( n0 = B ) )
& ~ ( ( n1 = A )
& ( n0 = B ) )
& ~ ( ( n5 = B )
& ( n0 = A ) )
& ~ ( ( n4 = B )
& ( n0 = A ) )
& ~ ( ( n3 = B )
& ( n0 = A ) ) )
=> ( n0
= ( n2 @ ( sigma @ a_select2 ) @ ( n400 @ ( n1 @ divide ) @ times ) ) ) ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[2]) ).
thf(93,plain,
( ( n0
!= ( n2 @ ( sigma @ a_select2 ) @ ( n400 @ ( n1 @ divide ) @ times ) ) )
& ( n4 = sk2 )
& ( n2 = sk2 )
& ( n2 = sk1 )
& ( n0 = sk1 )
& ( ( n5 != sk2 )
| ( n5 != sk1 ) )
& ( ( n5 != sk1 )
| ( n4 != sk2 ) )
& ( ( n5 != sk2 )
| ( n4 != sk1 ) )
& ( ( n4 != sk2 )
| ( n4 != sk1 ) )
& ( ( n5 != sk1 )
| ( n3 != sk2 ) )
& ( ( n4 != sk1 )
| ( n3 != sk2 ) )
& ( ( n5 != sk2 )
| ( n3 != sk1 ) )
& ( ( n4 != sk2 )
| ( n3 != sk1 ) )
& ( ( n3 != sk2 )
| ( n3 != sk1 ) )
& ( ( n5 != sk1 )
| ( n2 != sk2 ) )
& ( ( n4 != sk1 )
| ( n2 != sk2 ) )
& ( ( n3 != sk1 )
| ( n2 != sk2 ) )
& ( ( n5 != sk2 )
| ( n2 != sk1 ) )
& ( ( n4 != sk2 )
| ( n2 != sk1 ) )
& ( ( n3 != sk2 )
| ( n2 != sk1 ) )
& ( ( n2 != sk2 )
| ( n2 != sk1 ) )
& ( ( n5 != sk1 )
| ( n1 != sk2 ) )
& ( ( n4 != sk1 )
| ( n1 != sk2 ) )
& ( ( n3 != sk1 )
| ( n1 != sk2 ) )
& ( ( n2 != sk1 )
| ( n1 != sk2 ) )
& ( ( n5 != sk2 )
| ( n1 != sk1 ) )
& ( ( n4 != sk2 )
| ( n1 != sk1 ) )
& ( ( n3 != sk2 )
| ( n1 != sk1 ) )
& ( ( n2 != sk2 )
| ( n1 != sk1 ) )
& ( ( n1 != sk2 )
| ( n1 != sk1 ) )
& ( ( n5 != sk1 )
| ( n0 != sk2 ) )
& ( ( n4 != sk1 )
| ( n0 != sk2 ) )
& ( ( n3 != sk1 )
| ( n0 != sk2 ) )
& ( ( n2 != sk1 )
| ( n0 != sk2 ) )
& ( ( n1 != sk1 )
| ( n0 != sk2 ) )
& ( ( n5 != sk2 )
| ( n0 != sk1 ) )
& ( ( n4 != sk2 )
| ( n0 != sk1 ) )
& ( ( n3 != sk2 )
| ( n0 != sk1 ) )
& ( n5 @ ( sk2 @ leq ) )
& ( n5 @ ( sk1 @ leq ) )
& ( sk2 @ ( n0 @ leq ) )
& ( sk1 @ ( n0 @ leq ) ) ),
inference(cnf,[status(esa)],[92]) ).
thf(120,plain,
( ( n4 != sk2 )
| ( n4 != sk1 ) ),
inference(cnfConj,[status(thm)],[93]) ).
thf(146,plain,
( ( sk2 != n4 )
| ( sk1 != n4 ) ),
inference(lifteq,[status(thm)],[120]) ).
thf(118,plain,
n2 = sk2,
inference(cnfConj,[status(thm)],[93]) ).
thf(139,plain,
sk2 = n2,
inference(lifteq,[status(thm)],[118]) ).
thf(116,plain,
n2 = sk1,
inference(cnfConj,[status(thm)],[93]) ).
thf(153,plain,
sk1 = n2,
inference(lifteq,[status(thm)],[116]) ).
thf(132,plain,
n0 = sk1,
inference(cnfConj,[status(thm)],[93]) ).
thf(151,plain,
sk1 = n0,
inference(lifteq,[status(thm)],[132]) ).
thf(636,plain,
n2 = n0,
inference(rewrite,[status(thm)],[153,151]) ).
thf(637,plain,
sk2 = n0,
inference(rewrite,[status(thm)],[139,636]) ).
thf(134,plain,
n4 = sk2,
inference(cnfConj,[status(thm)],[93]) ).
thf(159,plain,
sk2 = n4,
inference(lifteq,[status(thm)],[134]) ).
thf(642,plain,
n4 = n0,
inference(rewrite,[status(thm)],[637,159]) ).
thf(644,plain,
sk2 = n0,
inference(rewrite,[status(thm)],[159,642]) ).
thf(665,plain,
( ( n0 != n0 )
| ( n0 != n0 ) ),
inference(rewrite,[status(thm)],[146,642,644,151]) ).
thf(666,plain,
$false,
inference(simp,[status(thm)],[665]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : SWV215+1 : TPTP v9.3.1. Bugfixed v3.3.0.
% 0.00/0.08 % Command : java -Xss128m -Xmx2g -Xms1g -jar /export/starexec/sandbox2/solver/bin/leo3.jar /export/starexec/sandbox2/benchmark/theBenchmark.p -t 300 -p --atp eprover=/export/starexec/sandbox2/solver/bin/externals/eprover --instantiate 39
% 0.14/5.41 % Computer : n008.cluster.edu
% 0.14/5.41 % Model : x86_64 x86_64
% 0.14/5.41 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.14/5.41 % Memory : 8046.5625MB
% 0.14/5.41 % OS : Linux 6.8.0-71-generic
% 0.14/5.41 % CPULimit : 300
% 0.14/5.41 % WCLimit : 300
% 0.14/5.41 % DateTime : Sat Sep 26 13:21:00 UTC 2026
% 0.14/5.41 % CPUTime :
% 0.14/5.41 Running java -Xss128m -Xmx2g -Xms1g -jar /export/starexec/sandbox2/solver/bin/leo3.jar /export/starexec/sandbox2/benchmark/theBenchmark.p -t 300 -p --atp eprover=/export/starexec/sandbox2/solver/bin/externals/eprover --instantiate 39
% 0.18/6.00 % [INFO] Parsing problem /export/starexec/sandbox2/benchmark/theBenchmark.p ...
% 1.41/6.27 % [INFO] Parsing done (264ms).
% 1.41/6.28 % [INFO] Running in sequential loop mode.
% 2.52/6.69 % [INFO] eprover registered as external prover.
% 2.52/6.70 % [INFO] Scanning for conjecture ...
% 2.93/6.88 % [INFO] Found a conjecture (or negated_conjecture) and 91 axioms. Running axiom selection ...
% 3.16/7.00 % [INFO] Axiom selection finished. Selected 89 axioms (removed 2 axioms).
% 3.54/7.11 % [INFO] Problem is first-order (TPTP FOF).
% 3.54/7.13 % [INFO] Type checking passed.
% 3.79/7.13 % [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 ...
% 8.26/8.44 % [INFO] Killing All external provers ...
% 8.26/8.44 % Time passed: 2882ms (effective reasoning time: 2146ms)
% 8.26/8.44 % Solved by 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)>
% 8.26/8.44 % Axioms used in derivation (0):
% 8.26/8.44 % No. of inferences in proof: 20
% 8.26/8.44 % SZS status Theorem for /export/starexec/sandbox2/benchmark/theBenchmark.p : 2882 ms resp. 2146 ms w/o parsing
% 8.26/8.47 % SZS output start Refutation for /export/starexec/sandbox2/benchmark/theBenchmark.p
% See solution above
% 8.26/8.47 % [INFO] Killing All external provers ...
%------------------------------------------------------------------------------