%------------------------------------------------------------------------------
% File : Leo-III---1.8.0
% Problem : KRS121+1 : TPTP v9.3.1. Released v3.1.0.
% 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 : n004.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 07:44:42 AM UTC 2026
% Result : Unsatisfiable 5.93s 3.09s
% Output : Refutation 6.14s
% Verified :
% SZS Type : Refutation
% Derivation depth : 2
% Number of leaves : 31
% Syntax : Number of formulae : 63 ( 3 unt; 0 typ; 0 def)
% Number of atoms : 196 ( 40 equ; 0 cnn)
% Maximal formula atoms : 8 ( 3 avg)
% Number of connectives : 373 ( 8 ~; 0 |; 64 &; 232 @)
% ( 8 <=>; 61 =>; 0 <=; 0 <~>)
% Maximal formula depth : 9 ( 7 avg)
% Number of types : 2 ( 0 usr)
% Number of type conns : 0 ( 0 >; 0 *; 0 +; 0 <<)
% Number of symbols : 17 ( 15 usr; 2 con; 0-2 aty)
% Number of variables : 145 ( 0 ^; 133 !; 12 ?; 145 :)
% Comments :
%------------------------------------------------------------------------------
thf(cUnsatisfiable_decl,type,
cUnsatisfiable: $i > $o ).
thf(ca_Ax2_decl,type,
ca_Ax2: $i > $o ).
thf(ca_Vx3_decl,type,
ca_Vx3: $i > $o ).
thf(cowlNothing_decl,type,
cowlNothing: $i > $o ).
thf(cowlThing_decl,type,
cowlThing: $i > $o ).
thf(cp1_decl,type,
cp1: $i > $o ).
thf(cp1xcomp_decl,type,
cp1xcomp: $i > $o ).
thf(ra_Px1_decl,type,
ra_Px1: $i > $i > $o ).
thf(rf_decl,type,
rf: $i > $i > $o ).
thf(rinvF_decl,type,
rinvF: $i > $i > $o ).
thf(rinvR_decl,type,
rinvR: $i > $i > $o ).
thf(rr_decl,type,
rr: $i > $i > $o ).
thf(xsd_integer_decl,type,
xsd_integer: $i > $o ).
thf(xsd_string_decl,type,
xsd_string: $i > $o ).
thf(i2003_11_14_17_21_5199_decl,type,
i2003_11_14_17_21_5199: $i ).
thf(15,axiom,
! [A: $i,B: $i,C: $i] :
( ( ( A @ ( C @ rinvR ) )
& ( A = B ) )
=> ( B @ ( C @ rinvR ) ) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',rinvR_substitution_2) ).
thf(88,plain,
! [A: $i,B: $i,C: $i] :
( ( ( A @ ( C @ rinvR ) )
& ( A = B ) )
=> ( B @ ( C @ rinvR ) ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[15]) ).
thf(22,axiom,
! [A: $i] :
( ( A @ cUnsatisfiable )
<=> ( ( A @ cp1 )
& ? [B: $i] :
( ( B @ ca_Vx3 )
& ( B @ ( A @ rr ) ) ) ) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',axiom_2) ).
thf(120,plain,
! [A: $i] :
( ( ( ( A @ cp1 )
& ? [B: $i] :
( ( B @ ca_Vx3 )
& ( B @ ( A @ rr ) ) ) )
=> ( A @ cUnsatisfiable ) )
& ( ( A @ cUnsatisfiable )
=> ( ( A @ cp1 )
& ? [B: $i] :
( ( B @ ca_Vx3 )
& ( B @ ( A @ rr ) ) ) ) ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[22]) ).
thf(7,axiom,
! [A: $i,B: $i] :
( ( ( A @ cp1xcomp )
& ( A = B ) )
=> ( B @ cp1xcomp ) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',cp1xcomp_substitution_1) ).
thf(56,plain,
! [A: $i,B: $i] :
( ( ( A @ cp1xcomp )
& ( A = B ) )
=> ( B @ cp1xcomp ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[7]) ).
thf(6,axiom,
! [A: $i,B: $i] :
( ( ( A @ cp1 )
& ( A = B ) )
=> ( B @ cp1 ) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',cp1_substitution_1) ).
thf(52,plain,
! [A: $i,B: $i] :
( ( ( A @ cp1 )
& ( A = B ) )
=> ( B @ cp1 ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[6]) ).
thf(14,axiom,
! [A: $i,B: $i,C: $i] :
( ( ( C @ ( A @ rinvR ) )
& ( A = B ) )
=> ( C @ ( B @ rinvR ) ) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',rinvR_substitution_1) ).
thf(84,plain,
! [A: $i,B: $i,C: $i] :
( ( ( C @ ( A @ rinvR ) )
& ( A = B ) )
=> ( C @ ( B @ rinvR ) ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[14]) ).
thf(8,axiom,
! [A: $i,B: $i,C: $i] :
( ( ( C @ ( A @ ra_Px1 ) )
& ( A = B ) )
=> ( C @ ( B @ ra_Px1 ) ) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',ra_Px1_substitution_1) ).
thf(60,plain,
! [A: $i,B: $i,C: $i] :
( ( ( C @ ( A @ ra_Px1 ) )
& ( A = B ) )
=> ( C @ ( B @ ra_Px1 ) ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[8]) ).
thf(29,axiom,
! [A: $i,B: $i] :
( ( B @ ( A @ rinvR ) )
<=> ( A @ ( B @ rr ) ) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',axiom_9) ).
thf(165,plain,
! [A: $i,B: $i] :
( ( ( A @ ( B @ rr ) )
=> ( B @ ( A @ rinvR ) ) )
& ( ( B @ ( A @ rinvR ) )
=> ( A @ ( B @ rr ) ) ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[29]) ).
thf(16,axiom,
! [A: $i,B: $i,C: $i] :
( ( ( C @ ( A @ rr ) )
& ( A = B ) )
=> ( C @ ( B @ rr ) ) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',rr_substitution_1) ).
thf(92,plain,
! [A: $i,B: $i,C: $i] :
( ( ( C @ ( A @ rr ) )
& ( A = B ) )
=> ( C @ ( B @ rr ) ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[16]) ).
thf(27,axiom,
! [A: $i,B: $i,C: $i] :
( ( ( C @ ( A @ rf ) )
& ( B @ ( A @ rf ) ) )
=> ( B = C ) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',axiom_7) ).
thf(156,plain,
! [A: $i,B: $i,C: $i] :
( ( ( C @ ( A @ rf ) )
& ( B @ ( A @ rf ) ) )
=> ( B = C ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[27]) ).
thf(17,axiom,
! [A: $i,B: $i,C: $i] :
( ( ( A @ ( C @ rr ) )
& ( A = B ) )
=> ( B @ ( C @ rr ) ) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',rr_substitution_2) ).
thf(96,plain,
! [A: $i,B: $i,C: $i] :
( ( ( A @ ( C @ rr ) )
& ( A = B ) )
=> ( B @ ( C @ rr ) ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[17]) ).
thf(31,axiom,
i2003_11_14_17_21_5199 @ cUnsatisfiable,
file('/export/starexec/sandbox/benchmark/theBenchmark.p',axiom_11) ).
thf(173,plain,
i2003_11_14_17_21_5199 @ cUnsatisfiable,
inference(defexp_and_simp_and_etaexpand,[status(thm)],[31]) ).
thf(4,axiom,
! [A: $i,B: $i] :
( ( ( A @ cowlNothing )
& ( A = B ) )
=> ( B @ cowlNothing ) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',cowlNothing_substitution_1) ).
thf(44,plain,
! [A: $i,B: $i] :
( ( ( A @ cowlNothing )
& ( A = B ) )
=> ( B @ cowlNothing ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[4]) ).
thf(28,axiom,
! [A: $i,B: $i] :
( ( B @ ( A @ rinvF ) )
<=> ( A @ ( B @ rf ) ) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',axiom_8) ).
thf(159,plain,
! [A: $i,B: $i] :
( ( ( A @ ( B @ rf ) )
=> ( B @ ( A @ rinvF ) ) )
& ( ( B @ ( A @ rinvF ) )
=> ( A @ ( B @ rf ) ) ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[28]) ).
thf(12,axiom,
! [A: $i,B: $i,C: $i] :
( ( ( C @ ( A @ rinvF ) )
& ( A = B ) )
=> ( C @ ( B @ rinvF ) ) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',rinvF_substitution_1) ).
thf(76,plain,
! [A: $i,B: $i,C: $i] :
( ( ( C @ ( A @ rinvF ) )
& ( A = B ) )
=> ( C @ ( B @ rinvF ) ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[12]) ).
thf(13,axiom,
! [A: $i,B: $i,C: $i] :
( ( ( A @ ( C @ rinvF ) )
& ( A = B ) )
=> ( B @ ( C @ rinvF ) ) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',rinvF_substitution_2) ).
thf(80,plain,
! [A: $i,B: $i,C: $i] :
( ( ( A @ ( C @ rinvF ) )
& ( A = B ) )
=> ( B @ ( C @ rinvF ) ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[13]) ).
thf(5,axiom,
! [A: $i,B: $i] :
( ( ( A @ cowlThing )
& ( A = B ) )
=> ( B @ cowlThing ) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',cowlThing_substitution_1) ).
thf(48,plain,
! [A: $i,B: $i] :
( ( ( A @ cowlThing )
& ( A = B ) )
=> ( B @ cowlThing ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[5]) ).
thf(11,axiom,
! [A: $i,B: $i,C: $i] :
( ( ( A @ ( C @ rf ) )
& ( A = B ) )
=> ( B @ ( C @ rf ) ) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',rf_substitution_2) ).
thf(72,plain,
! [A: $i,B: $i,C: $i] :
( ( ( A @ ( C @ rf ) )
& ( A = B ) )
=> ( B @ ( C @ rf ) ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[11]) ).
thf(19,axiom,
! [A: $i,B: $i] :
( ( ( A @ xsd_string )
& ( A = B ) )
=> ( B @ xsd_string ) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',xsd_string_substitution_1) ).
thf(104,plain,
! [A: $i,B: $i] :
( ( ( A @ xsd_string )
& ( A = B ) )
=> ( B @ xsd_string ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[19]) ).
thf(2,axiom,
! [A: $i,B: $i] :
( ( ( A @ ca_Ax2 )
& ( A = B ) )
=> ( B @ ca_Ax2 ) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',ca_Ax2_substitution_1) ).
thf(36,plain,
! [A: $i,B: $i] :
( ( ( A @ ca_Ax2 )
& ( A = B ) )
=> ( B @ ca_Ax2 ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[2]) ).
thf(10,axiom,
! [A: $i,B: $i,C: $i] :
( ( ( C @ ( A @ rf ) )
& ( A = B ) )
=> ( C @ ( B @ rf ) ) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',rf_substitution_1) ).
thf(68,plain,
! [A: $i,B: $i,C: $i] :
( ( ( C @ ( A @ rf ) )
& ( A = B ) )
=> ( C @ ( B @ rf ) ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[10]) ).
thf(18,axiom,
! [A: $i,B: $i] :
( ( ( A @ xsd_integer )
& ( A = B ) )
=> ( B @ xsd_integer ) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',xsd_integer_substitution_1) ).
thf(100,plain,
! [A: $i,B: $i] :
( ( ( A @ xsd_integer )
& ( A = B ) )
=> ( B @ xsd_integer ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[18]) ).
thf(24,axiom,
! [A: $i] :
( ( A @ cp1xcomp )
<=> ? [B: $i] : ( B @ ( A @ ra_Px1 ) ) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',axiom_4) ).
thf(134,plain,
! [A: $i] :
( ( ? [B: $i] : ( B @ ( A @ ra_Px1 ) )
=> ( A @ cp1xcomp ) )
& ( ( A @ cp1xcomp )
=> ? [B: $i] : ( B @ ( A @ ra_Px1 ) ) ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[24]) ).
thf(23,axiom,
! [A: $i] :
( ( A @ cp1 )
<=> ~ ? [B: $i] : ( B @ ( A @ ra_Px1 ) ) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',axiom_3) ).
thf(128,plain,
! [A: $i] :
( ( ~ ? [B: $i] : ( B @ ( A @ ra_Px1 ) )
=> ( A @ cp1 ) )
& ( ( A @ cp1 )
=> ~ ? [B: $i] : ( B @ ( A @ ra_Px1 ) ) ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[23]) ).
thf(1,axiom,
! [A: $i,B: $i] :
( ( ( A @ cUnsatisfiable )
& ( A = B ) )
=> ( B @ cUnsatisfiable ) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',cUnsatisfiable_substitution_1) ).
thf(32,plain,
! [A: $i,B: $i] :
( ( ( A @ cUnsatisfiable )
& ( A = B ) )
=> ( B @ cUnsatisfiable ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[1]) ).
thf(9,axiom,
! [A: $i,B: $i,C: $i] :
( ( ( A @ ( C @ ra_Px1 ) )
& ( A = B ) )
=> ( B @ ( C @ ra_Px1 ) ) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',ra_Px1_substitution_2) ).
thf(64,plain,
! [A: $i,B: $i,C: $i] :
( ( ( A @ ( C @ ra_Px1 ) )
& ( A = B ) )
=> ( B @ ( C @ ra_Px1 ) ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[9]) ).
thf(26,axiom,
! [A: $i] :
( ( A @ ca_Vx3 )
<=> ? [B: $i] :
( ( B @ ca_Ax2 )
& ( B @ ( A @ rr ) ) ) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',axiom_6) ).
thf(149,plain,
! [A: $i] :
( ( ? [B: $i] :
( ( B @ ca_Ax2 )
& ( B @ ( A @ rr ) ) )
=> ( A @ ca_Vx3 ) )
& ( ( A @ ca_Vx3 )
=> ? [B: $i] :
( ( B @ ca_Ax2 )
& ( B @ ( A @ rr ) ) ) ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[26]) ).
thf(25,axiom,
! [A: $i] :
( ( A @ ca_Ax2 )
<=> ( ! [B: $i] :
( ( B @ ( A @ rinvR ) )
=> ( B @ cp1xcomp ) )
& ( A @ cp1 ) ) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',axiom_5) ).
thf(140,plain,
! [A: $i] :
( ( ( ! [B: $i] :
( ( B @ ( A @ rinvR ) )
=> ( B @ cp1xcomp ) )
& ( A @ cp1 ) )
=> ( A @ ca_Ax2 ) )
& ( ( A @ ca_Ax2 )
=> ( ! [B: $i] :
( ( B @ ( A @ rinvR ) )
=> ( B @ cp1xcomp ) )
& ( A @ cp1 ) ) ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[25]) ).
thf(20,axiom,
! [A: $i] :
( ~ ( A @ cowlNothing )
& ( A @ cowlThing ) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',axiom_0) ).
thf(108,plain,
! [A: $i] :
( ~ ( A @ cowlNothing )
& ( A @ cowlThing ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[20]) ).
thf(3,axiom,
! [A: $i,B: $i] :
( ( ( A @ ca_Vx3 )
& ( A = B ) )
=> ( B @ ca_Vx3 ) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',ca_Vx3_substitution_1) ).
thf(40,plain,
! [A: $i,B: $i] :
( ( ( A @ ca_Vx3 )
& ( A = B ) )
=> ( B @ ca_Vx3 ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[3]) ).
thf(21,axiom,
! [A: $i] :
( ( A @ xsd_string )
<=> ~ ( A @ xsd_integer ) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',axiom_1) ).
thf(114,plain,
! [A: $i] :
( ( ~ ( A @ xsd_integer )
=> ( A @ xsd_string ) )
& ( ( A @ xsd_string )
=> ~ ( A @ xsd_integer ) ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[21]) ).
thf(30,axiom,
! [A: $i,B: $i,C: $i] :
( ( ( C @ ( B @ rr ) )
& ( B @ ( A @ rr ) ) )
=> ( C @ ( A @ rr ) ) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',axiom_10) ).
thf(171,plain,
! [A: $i,B: $i,C: $i] :
( ( ( C @ ( B @ rr ) )
& ( B @ ( A @ rr ) ) )
=> ( C @ ( A @ rr ) ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[30]) ).
thf(174,plain,
$false,
inference(e,[status(thm)],[88,120,56,52,84,60,165,92,156,96,173,44,159,76,80,48,72,104,36,68,100,134,128,32,64,149,140,108,40,114,171]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : KRS121+1 : TPTP v9.3.1. Released v3.1.0.
% 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
% 0.15/0.40 % Computer : n004.cluster.edu
% 0.15/0.40 % Model : x86_64 x86_64
% 0.15/0.40 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.15/0.40 % Memory : 8046.5625MB
% 0.15/0.40 % OS : Linux 6.8.0-71-generic
% 0.15/0.40 % CPULimit : 300
% 0.15/0.40 % WCLimit : 300
% 0.15/0.40 % DateTime : Fri Sep 25 19:39:51 UTC 2026
% 0.15/0.41 % CPUTime :
% 0.15/0.41 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
% 0.91/1.02 % [INFO] Parsing problem /export/starexec/sandbox/benchmark/theBenchmark.p ...
% 1.47/1.25 % [INFO] Parsing done (220ms).
% 1.47/1.26 % [INFO] Running in sequential loop mode.
% 2.52/1.74 % [INFO] eprover registered as external prover.
% 2.52/1.75 % [INFO] Scanning for conjecture ...
% 2.71/1.82 % [INFO] 31 axioms and no conjecture found.
% 2.89/1.97 % [INFO] Problem is first-order (TPTP FOF).
% 2.89/1.98 % [INFO] Type checking passed.
% 2.89/1.99 % [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 ...
% 5.93/3.08 % External prover 'e' found a proof!
% 5.93/3.08 % [INFO] Killing All external provers ...
% 5.93/3.08 % Time passed: 2536ms (effective reasoning time: 1812ms)
% 5.93/3.08 % Axioms used in derivation (31): rr_substitution_1, ca_Ax2_substitution_1, axiom_2, xsd_string_substitution_1, cp1xcomp_substitution_1, cowlThing_substitution_1, axiom_3, axiom_8, rinvR_substitution_1, axiom_5, rinvF_substitution_1, rf_substitution_1, rinvR_substitution_2, axiom_7, cowlNothing_substitution_1, rinvF_substitution_2, axiom_10, axiom_6, ra_Px1_substitution_1, ra_Px1_substitution_2, cUnsatisfiable_substitution_1, axiom_1, xsd_integer_substitution_1, rf_substitution_2, axiom_0, cp1_substitution_1, axiom_11, axiom_9, rr_substitution_2, ca_Vx3_substitution_1, axiom_4
% 5.93/3.08 % No. of inferences in proof: 63
% 5.93/3.09 % SZS status Unsatisfiable for /export/starexec/sandbox/benchmark/theBenchmark.p : 2536 ms resp. 1812 ms w/o parsing
% 6.14/3.19 % SZS output start Refutation for /export/starexec/sandbox/benchmark/theBenchmark.p
% See solution above
% 6.14/3.19 % [INFO] Killing All external provers ...
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