%------------------------------------------------------------------------------
% File : Drodi-SAT---4.1.1
% Problem : COL110-2 : TPTP v9.3.1. Released v3.2.0.
% Transfm : none
% Format : tptp:raw
% Command : drodi -satmode(on) -timeout(300) /export/starexec/sandbox/benchmark/theBenchmark.p
% 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 : Thu Sep 24 12:09:10 PM UTC 2026
% Result : Unsatisfiable 0.15s 0.45s
% Output : Assurance 0s
% Verified :
% SZS Type : -
% Comments :
%------------------------------------------------------------------------------
%----No solution output by system
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : COL110-2 : TPTP v9.3.1. Released v3.2.0.
% 0.00/0.05 % Command : drodi -satmode(on) -timeout(300) /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.15/0.42 % Computer : n015.cluster.edu
% 0.15/0.42 % Model : x86_64 x86_64
% 0.15/0.42 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.15/0.42 % Memory : 8046.5625MB
% 0.15/0.42 % OS : Linux 6.8.0-71-generic
% 0.15/0.42 % CPULimit : 300
% 0.15/0.42 % WCLimit : 300
% 0.15/0.42 % DateTime : Mon Sep 21 14:15:06 UTC 2026
% 0.15/0.42 % CPUTime :
% 0.15/0.44 % Drodi V4.1.1
% 0.15/0.45 % Refutation found
% 0.15/0.45 % SZS status Unsatisfiable for theBenchmark: Theory is unsatisfiable
% 0.15/0.45 % SZS output start CNFRefutation for theBenchmark
% 0.15/0.45 fof(f1,negated_conjecture,(
% 0.15/0.45 c_in(c_Pair(v_x,v_yb,tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,tc_prod(tc_Comb_Ocomb,tc_Comb_Ocomb)) ),
% 0.15/0.45 file('/export/starexec/sandbox/benchmark/theBenchmark.p')).
% 0.15/0.45 fof(f2,negated_conjecture,(
% 0.15/0.45 c_in(c_Pair(v_z,v_wa,tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,tc_prod(tc_Comb_Ocomb,tc_Comb_Ocomb)) ),
% 0.15/0.45 file('/export/starexec/sandbox/benchmark/theBenchmark.p')).
% 0.15/0.45 fof(f3,negated_conjecture,(
% 0.15/0.45 (![V_U]: (( ~ c_in(c_Pair(c_Comb_Ocomb_Oop_A_D_D(v_yb,v_wa),V_U,tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,tc_prod(tc_Comb_Ocomb,tc_Comb_Ocomb))| ~ c_in(c_Pair(c_Comb_Ocomb_Oop_A_D_D(v_ya,v_w),V_U,tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,tc_prod(tc_Comb_Ocomb,tc_Comb_Ocomb)) ) ))),
% 0.15/0.45 file('/export/starexec/sandbox/benchmark/theBenchmark.p')).
% 0.15/0.45 fof(f4,negated_conjecture,(
% 0.15/0.45 (![V_U]: (( c_in(c_Pair(v_ya,v_xb(V_U),tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,tc_prod(tc_Comb_Ocomb,tc_Comb_Ocomb))| ~ c_in(c_Pair(v_x,V_U,tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,tc_prod(tc_Comb_Ocomb,tc_Comb_Ocomb)) ) ))),
% 0.15/0.45 file('/export/starexec/sandbox/benchmark/theBenchmark.p')).
% 0.15/0.45 fof(f5,negated_conjecture,(
% 0.15/0.45 (![V_U]: (( c_in(c_Pair(V_U,v_xb(V_U),tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,tc_prod(tc_Comb_Ocomb,tc_Comb_Ocomb))| ~ c_in(c_Pair(v_x,V_U,tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,tc_prod(tc_Comb_Ocomb,tc_Comb_Ocomb)) ) ))),
% 0.15/0.45 file('/export/starexec/sandbox/benchmark/theBenchmark.p')).
% 0.15/0.45 fof(f6,negated_conjecture,(
% 0.15/0.45 (![V_U]: (( c_in(c_Pair(v_w,v_xaa(V_U),tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,tc_prod(tc_Comb_Ocomb,tc_Comb_Ocomb))| ~ c_in(c_Pair(v_z,V_U,tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,tc_prod(tc_Comb_Ocomb,tc_Comb_Ocomb)) ) ))),
% 0.15/0.45 file('/export/starexec/sandbox/benchmark/theBenchmark.p')).
% 0.15/0.45 fof(f7,negated_conjecture,(
% 0.15/0.45 (![V_U]: (( c_in(c_Pair(V_U,v_xaa(V_U),tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,tc_prod(tc_Comb_Ocomb,tc_Comb_Ocomb))| ~ c_in(c_Pair(v_z,V_U,tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,tc_prod(tc_Comb_Ocomb,tc_Comb_Ocomb)) ) ))),
% 0.15/0.45 file('/export/starexec/sandbox/benchmark/theBenchmark.p')).
% 0.15/0.45 fof(f8,axiom,(
% 0.15/0.45 (![V_z,V_w,V_x,V_y]: (( ~ c_in(c_Pair(V_z,V_w,tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,tc_prod(tc_Comb_Ocomb,tc_Comb_Ocomb))| ~ c_in(c_Pair(V_x,V_y,tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,tc_prod(tc_Comb_Ocomb,tc_Comb_Ocomb))| c_in(c_Pair(c_Comb_Ocomb_Oop_A_D_D(V_x,V_z),c_Comb_Ocomb_Oop_A_D_D(V_y,V_w),tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,tc_prod(tc_Comb_Ocomb,tc_Comb_Ocomb)) ) ))),
% 0.15/0.45 file('/export/starexec/sandbox/benchmark/theBenchmark.p')).
% 0.15/0.45 fof(f9,plain,(
% 0.15/0.45 c_in(c_Pair(v_x,v_yb,tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,tc_prod(tc_Comb_Ocomb,tc_Comb_Ocomb))),
% 0.15/0.45 inference(cnf_transformation,[status(thm)],[f1])).
% 0.15/0.45 fof(f10,plain,(
% 0.15/0.45 c_in(c_Pair(v_z,v_wa,tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,tc_prod(tc_Comb_Ocomb,tc_Comb_Ocomb))),
% 0.15/0.45 inference(cnf_transformation,[status(thm)],[f2])).
% 0.15/0.45 fof(f11,plain,(
% 0.15/0.45 ![X0]: (~c_in(c_Pair(c_Comb_Ocomb_Oop_A_D_D(v_yb,v_wa),X0,tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,tc_prod(tc_Comb_Ocomb,tc_Comb_Ocomb))|~c_in(c_Pair(c_Comb_Ocomb_Oop_A_D_D(v_ya,v_w),X0,tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,tc_prod(tc_Comb_Ocomb,tc_Comb_Ocomb)))),
% 0.15/0.45 inference(cnf_transformation,[status(thm)],[f3])).
% 0.15/0.45 fof(f12,plain,(
% 0.15/0.45 ![X0]: (c_in(c_Pair(v_ya,v_xb(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)))),
% 0.15/0.45 inference(cnf_transformation,[status(thm)],[f4])).
% 0.15/0.45 fof(f13,plain,(
% 0.15/0.45 ![X0]: (c_in(c_Pair(X0,v_xb(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)))),
% 0.15/0.45 inference(cnf_transformation,[status(thm)],[f5])).
% 0.15/0.45 fof(f14,plain,(
% 0.15/0.45 ![X0]: (c_in(c_Pair(v_w,v_xaa(X0),tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,tc_prod(tc_Comb_Ocomb,tc_Comb_Ocomb))|~c_in(c_Pair(v_z,X0,tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,tc_prod(tc_Comb_Ocomb,tc_Comb_Ocomb)))),
% 0.15/0.45 inference(cnf_transformation,[status(thm)],[f6])).
% 0.15/0.45 fof(f15,plain,(
% 0.15/0.45 ![X0]: (c_in(c_Pair(X0,v_xaa(X0),tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,tc_prod(tc_Comb_Ocomb,tc_Comb_Ocomb))|~c_in(c_Pair(v_z,X0,tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,tc_prod(tc_Comb_Ocomb,tc_Comb_Ocomb)))),
% 0.15/0.45 inference(cnf_transformation,[status(thm)],[f7])).
% 0.15/0.45 fof(f16,plain,(
% 0.15/0.45 ![X0,X1,X2,X3]: (~c_in(c_Pair(X0,X1,tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,tc_prod(tc_Comb_Ocomb,tc_Comb_Ocomb))|~c_in(c_Pair(X2,X3,tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,tc_prod(tc_Comb_Ocomb,tc_Comb_Ocomb))|c_in(c_Pair(c_Comb_Ocomb_Oop_A_D_D(X2,X0),c_Comb_Ocomb_Oop_A_D_D(X3,X1),tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,tc_prod(tc_Comb_Ocomb,tc_Comb_Ocomb)))),
% 0.15/0.45 inference(cnf_transformation,[status(thm)],[f8])).
% 0.15/0.45 fof(f19,plain,(
% 0.15/0.45 ![X0,X1]: (~c_in(c_Pair(v_w,X0,tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,tc_prod(tc_Comb_Ocomb,tc_Comb_Ocomb))|~c_in(c_Pair(v_ya,X1,tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,tc_prod(tc_Comb_Ocomb,tc_Comb_Ocomb))|~c_in(c_Pair(c_Comb_Ocomb_Oop_A_D_D(v_yb,v_wa),c_Comb_Ocomb_Oop_A_D_D(X1,X0),tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,tc_prod(tc_Comb_Ocomb,tc_Comb_Ocomb)))),
% 0.15/0.45 inference(resolution,[status(thm)],[f16,f11])).
% 0.15/0.45 fof(f20,plain,(
% 0.15/0.45 ![X0,X1]: (~c_in(c_Pair(v_w,X0,tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,tc_prod(tc_Comb_Ocomb,tc_Comb_Ocomb))|~c_in(c_Pair(v_ya,X1,tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,tc_prod(tc_Comb_Ocomb,tc_Comb_Ocomb))|~c_in(c_Pair(v_wa,X0,tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,tc_prod(tc_Comb_Ocomb,tc_Comb_Ocomb))|~c_in(c_Pair(v_yb,X1,tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,tc_prod(tc_Comb_Ocomb,tc_Comb_Ocomb)))),
% 0.15/0.45 inference(resolution,[status(thm)],[f19,f16])).
% 0.15/0.45 fof(f21,plain,(
% 0.15/0.45 ![X0]: (~c_in(c_Pair(v_w,v_xaa(v_wa),tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,tc_prod(tc_Comb_Ocomb,tc_Comb_Ocomb))|~c_in(c_Pair(v_ya,X0,tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,tc_prod(tc_Comb_Ocomb,tc_Comb_Ocomb))|~c_in(c_Pair(v_yb,X0,tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,tc_prod(tc_Comb_Ocomb,tc_Comb_Ocomb))|~c_in(c_Pair(v_z,v_wa,tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,tc_prod(tc_Comb_Ocomb,tc_Comb_Ocomb)))),
% 0.15/0.45 inference(resolution,[status(thm)],[f20,f15])).
% 0.15/0.45 fof(f23,plain,(
% 0.15/0.45 ![X0]: (~c_in(c_Pair(v_ya,X0,tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,tc_prod(tc_Comb_Ocomb,tc_Comb_Ocomb))|~c_in(c_Pair(v_yb,X0,tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,tc_prod(tc_Comb_Ocomb,tc_Comb_Ocomb))|~c_in(c_Pair(v_z,v_wa,tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,tc_prod(tc_Comb_Ocomb,tc_Comb_Ocomb)))),
% 0.15/0.45 inference(forward_subsumption_resolution,[status(thm)],[f21,f14])).
% 0.15/0.45 fof(f24,plain,(
% 0.15/0.45 ![X0]: (~c_in(c_Pair(v_ya,X0,tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,tc_prod(tc_Comb_Ocomb,tc_Comb_Ocomb))|~c_in(c_Pair(v_yb,X0,tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,tc_prod(tc_Comb_Ocomb,tc_Comb_Ocomb)))),
% 0.15/0.45 inference(forward_subsumption_resolution,[status(thm)],[f23,f10])).
% 0.15/0.45 fof(f26,plain,(
% 0.15/0.45 ~c_in(c_Pair(v_ya,v_xb(v_yb),tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,tc_prod(tc_Comb_Ocomb,tc_Comb_Ocomb))|~c_in(c_Pair(v_x,v_yb,tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,tc_prod(tc_Comb_Ocomb,tc_Comb_Ocomb))),
% 0.15/0.45 inference(resolution,[status(thm)],[f24,f13])).
% 0.15/0.45 fof(f27,plain,(
% 0.15/0.45 ~c_in(c_Pair(v_x,v_yb,tc_Comb_Ocomb,tc_Comb_Ocomb),c_Comb_Oparcontract,tc_prod(tc_Comb_Ocomb,tc_Comb_Ocomb))),
% 0.15/0.45 inference(forward_subsumption_resolution,[status(thm)],[f26,f12])).
% 0.15/0.45 fof(f28,plain,(
% 0.15/0.45 $false),
% 0.15/0.45 inference(forward_subsumption_resolution,[status(thm)],[f27,f9])).
% 0.15/0.45 % SZS output end CNFRefutation for theBenchmark.p
% 0.22/0.54 % Elapsed time: 0.105565 seconds
% 0.22/0.54 % CPU time: 0.096480 seconds
% 0.22/0.54 % Total memory used: 1.806 MB
% 0.22/0.54 % Net memory used: 1.806 MB
%------------------------------------------------------------------------------