%---------------- SGGS v1.0 (IJCAR 2020 submission) ----------------%

------ Parsing...successful


------ Proving...
use I+

Gamma_0: (extend-no-conflict)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))

Gamma_1: (extend-no-conflict)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))
  1: [~(big_h(esk4_0))], ~(big_h(esk3_0))

Gamma_2: (extend-no-conflict)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))
  1: [~(big_h(esk4_0))], ~(big_h(esk3_0))
  2: big_h(esk4_0), [~(big_f(esk4_0))]

Gamma_3: (extend-no-conflict)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))
  1: [~(big_h(esk4_0))], ~(big_h(esk3_0))
  2: big_h(esk4_0), [~(big_f(esk4_0))]
  3: big_h(esk4_0), [~(big_g(esk4_0))]

Gamma_4: (extend-no-conflict)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))
  1: [~(big_h(esk4_0))], ~(big_h(esk3_0))
  2: big_h(esk4_0), [~(big_f(esk4_0))]
  3: big_h(esk4_0), [~(big_g(esk4_0))]
  4: [~(big_h(esk3_0))], big_g(esk4_0), big_f(esk4_0)

Gamma_5: (extend-no-conflict)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))
  1: [~(big_h(esk4_0))], ~(big_h(esk3_0))
  2: big_h(esk4_0), [~(big_f(esk4_0))]
  3: big_h(esk4_0), [~(big_g(esk4_0))]
  4: [~(big_h(esk3_0))], big_g(esk4_0), big_f(esk4_0)
  5: big_h(esk3_0), [~(big_f(esk3_0))]

Gamma_6: (extend-no-conflict)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))
  1: [~(big_h(esk4_0))], ~(big_h(esk3_0))
  2: big_h(esk4_0), [~(big_f(esk4_0))]
  3: big_h(esk4_0), [~(big_g(esk4_0))]
  4: [~(big_h(esk3_0))], big_g(esk4_0), big_f(esk4_0)
  5: big_h(esk3_0), [~(big_f(esk3_0))]
  6: big_h(esk3_0), [~(big_g(esk3_0))]

Gamma_7: (extend-no-conflict)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))
  1: [~(big_h(esk4_0))], ~(big_h(esk3_0))
  2: big_h(esk4_0), [~(big_f(esk4_0))]
  3: big_h(esk4_0), [~(big_g(esk4_0))]
  4: [~(big_h(esk3_0))], big_g(esk4_0), big_f(esk4_0)
  5: big_h(esk3_0), [~(big_f(esk3_0))]
  6: big_h(esk3_0), [~(big_g(esk3_0))]
  7: [~(big_f(esk2_0))], big_f(esk3_0)

Gamma_8: (extend-conflict)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))
  1: [~(big_h(esk4_0))], ~(big_h(esk3_0))
  2: big_h(esk4_0), [~(big_f(esk4_0))]
  3: big_h(esk4_0), [~(big_g(esk4_0))]
  4: [~(big_h(esk3_0))], big_g(esk4_0), big_f(esk4_0)
  5: big_h(esk3_0), [~(big_f(esk3_0))]
  6: big_h(esk3_0), [~(big_g(esk3_0))]
  7: [~(big_f(esk2_0))], big_f(esk3_0)
  8: [big_g(esk3_0)], big_f(esk3_0)

Gamma_9: (move)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))
  1: [~(big_h(esk4_0))], ~(big_h(esk3_0))
  2: big_h(esk4_0), [~(big_f(esk4_0))]
  3: big_h(esk4_0), [~(big_g(esk4_0))]
  4: [~(big_h(esk3_0))], big_g(esk4_0), big_f(esk4_0)
  5: big_h(esk3_0), [~(big_f(esk3_0))]
  6: [big_g(esk3_0)], big_f(esk3_0)
  7: big_h(esk3_0), [~(big_g(esk3_0))]
  8: [~(big_f(esk2_0))], big_f(esk3_0)

Gamma_10: (resolve)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))
  1: [~(big_h(esk4_0))], ~(big_h(esk3_0))
  2: big_h(esk4_0), [~(big_f(esk4_0))]
  3: big_h(esk4_0), [~(big_g(esk4_0))]
  4: [~(big_h(esk3_0))], big_g(esk4_0), big_f(esk4_0)
  5: big_h(esk3_0), [~(big_f(esk3_0))]
  6: [big_g(esk3_0)], big_f(esk3_0)
  7: [big_h(esk3_0)], big_f(esk3_0)
  8: [~(big_f(esk2_0))], big_f(esk3_0)

Gamma_11: (extend-conflict)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))
  1: [~(big_h(esk4_0))], ~(big_h(esk3_0))
  2: big_h(esk4_0), [~(big_f(esk4_0))]
  3: big_h(esk4_0), [~(big_g(esk4_0))]
  4: [~(big_h(esk3_0))], big_g(esk4_0), big_f(esk4_0)
  5: big_h(esk3_0), [~(big_f(esk3_0))]
  6: [big_g(esk3_0)], big_f(esk3_0)
  7: big_h(esk3_0), [big_f(esk3_0)]
  8: [~(big_f(esk2_0))], big_f(esk3_0)

Gamma_12: (move)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))
  1: [~(big_h(esk4_0))], ~(big_h(esk3_0))
  2: big_h(esk4_0), [~(big_f(esk4_0))]
  3: big_h(esk4_0), [~(big_g(esk4_0))]
  4: [~(big_h(esk3_0))], big_g(esk4_0), big_f(esk4_0)
  5: big_h(esk3_0), [big_f(esk3_0)]
  6: big_h(esk3_0), [~(big_f(esk3_0))]
  7: [big_g(esk3_0)], big_f(esk3_0)
  8: [~(big_f(esk2_0))], big_f(esk3_0)

Gamma_13: (resolve)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))
  1: [~(big_h(esk4_0))], ~(big_h(esk3_0))
  2: big_h(esk4_0), [~(big_f(esk4_0))]
  3: big_h(esk4_0), [~(big_g(esk4_0))]
  4: [~(big_h(esk3_0))], big_g(esk4_0), big_f(esk4_0)
  5: big_h(esk3_0), [big_f(esk3_0)]
  6: [big_h(esk3_0)]

Gamma_14: (extend-conflict)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))
  1: [~(big_h(esk4_0))], ~(big_h(esk3_0))
  2: big_h(esk4_0), [~(big_f(esk4_0))]
  3: big_h(esk4_0), [~(big_g(esk4_0))]
  4: [~(big_h(esk3_0))], big_g(esk4_0), big_f(esk4_0)
  5: big_h(esk3_0), [big_f(esk3_0)]
  6: [big_h(esk3_0)]

Gamma_15: (move)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))
  1: [~(big_h(esk4_0))], ~(big_h(esk3_0))
  2: big_h(esk4_0), [~(big_f(esk4_0))]
  3: big_h(esk4_0), [~(big_g(esk4_0))]
  4: [big_h(esk3_0)]
  5: [~(big_h(esk3_0))], big_g(esk4_0), big_f(esk4_0)
  6: big_h(esk3_0), [big_f(esk3_0)]

Gamma_16: (resolve)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))
  1: [~(big_h(esk4_0))], ~(big_h(esk3_0))
  2: big_h(esk4_0), [~(big_f(esk4_0))]
  3: big_h(esk4_0), [~(big_g(esk4_0))]
  4: [big_h(esk3_0)]
  5: [big_g(esk4_0)], big_f(esk4_0)

Gamma_17: (extend-conflict)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))
  1: [~(big_h(esk4_0))], ~(big_h(esk3_0))
  2: big_h(esk4_0), [~(big_f(esk4_0))]
  3: big_h(esk4_0), [~(big_g(esk4_0))]
  4: [big_h(esk3_0)]
  5: [big_g(esk4_0)], big_f(esk4_0)

Gamma_18: (move)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))
  1: [~(big_h(esk4_0))], ~(big_h(esk3_0))
  2: big_h(esk4_0), [~(big_f(esk4_0))]
  3: [big_g(esk4_0)], big_f(esk4_0)
  4: big_h(esk4_0), [~(big_g(esk4_0))]
  5: [big_h(esk3_0)]

Gamma_19: (resolve)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))
  1: [~(big_h(esk4_0))], ~(big_h(esk3_0))
  2: big_h(esk4_0), [~(big_f(esk4_0))]
  3: [big_g(esk4_0)], big_f(esk4_0)
  4: [big_h(esk4_0)], big_f(esk4_0)
  5: [big_h(esk3_0)]

Gamma_20: (extend-conflict)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))
  1: [~(big_h(esk4_0))], ~(big_h(esk3_0))
  2: big_h(esk4_0), [~(big_f(esk4_0))]
  3: [big_g(esk4_0)], big_f(esk4_0)
  4: big_h(esk4_0), [big_f(esk4_0)]
  5: [big_h(esk3_0)]

Gamma_21: (move)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))
  1: [~(big_h(esk4_0))], ~(big_h(esk3_0))
  2: big_h(esk4_0), [big_f(esk4_0)]
  3: big_h(esk4_0), [~(big_f(esk4_0))]
  4: [big_g(esk4_0)], big_f(esk4_0)
  5: [big_h(esk3_0)]

Gamma_22: (resolve)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))
  1: [~(big_h(esk4_0))], ~(big_h(esk3_0))
  2: big_h(esk4_0), [big_f(esk4_0)]
  3: [big_h(esk4_0)]
  4: [big_h(esk3_0)]

Gamma_23: (extend-conflict)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))
  1: [~(big_h(esk4_0))], ~(big_h(esk3_0))
  2: big_h(esk4_0), [big_f(esk4_0)]
  3: [big_h(esk4_0)]
  4: [big_h(esk3_0)]

Gamma_24: (move)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))
  1: [big_h(esk4_0)]
  2: [~(big_h(esk4_0))], ~(big_h(esk3_0))
  3: big_h(esk4_0), [big_f(esk4_0)]
  4: [big_h(esk3_0)]

Gamma_25: (resolve)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))
  1: [big_h(esk4_0)]
  2: [~(big_h(esk3_0))]
  3: [big_h(esk3_0)]

Gamma_26: (extend-conflict)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))
  1: [big_h(esk4_0)]
  2: [~(big_h(esk3_0))]
  3: [big_h(esk3_0)]

Gamma_27: (move)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))
  1: [big_h(esk4_0)]
  2: [big_h(esk3_0)]
  3: [~(big_h(esk3_0))]

Gamma_28: (resolve)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))
  1: [big_h(esk4_0)]
  2: [big_h(esk3_0)]
  3: []

SZS status Unsatisfiable

%---------------- SGGS v1.0 (IJCAR 2020 submission) ----------------%

------ Parsing...successful


------ Proving...
use I+

Gamma_0: (extend-no-conflict)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))

Gamma_1: (extend-no-conflict)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))
  1: [~(big_h(esk4_0))], ~(big_h(esk3_0))

Gamma_2: (extend-no-conflict)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))
  1: [~(big_h(esk4_0))], ~(big_h(esk3_0))
  2: big_h(esk4_0), [~(big_f(esk4_0))]

Gamma_3: (extend-no-conflict)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))
  1: [~(big_h(esk4_0))], ~(big_h(esk3_0))
  2: big_h(esk4_0), [~(big_f(esk4_0))]
  3: big_h(esk4_0), [~(big_g(esk4_0))]

Gamma_4: (extend-no-conflict)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))
  1: [~(big_h(esk4_0))], ~(big_h(esk3_0))
  2: big_h(esk4_0), [~(big_f(esk4_0))]
  3: big_h(esk4_0), [~(big_g(esk4_0))]
  4: [~(big_h(esk3_0))], big_g(esk4_0), big_f(esk4_0)

Gamma_5: (extend-no-conflict)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))
  1: [~(big_h(esk4_0))], ~(big_h(esk3_0))
  2: big_h(esk4_0), [~(big_f(esk4_0))]
  3: big_h(esk4_0), [~(big_g(esk4_0))]
  4: [~(big_h(esk3_0))], big_g(esk4_0), big_f(esk4_0)
  5: big_h(esk3_0), [~(big_f(esk3_0))]

Gamma_6: (extend-no-conflict)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))
  1: [~(big_h(esk4_0))], ~(big_h(esk3_0))
  2: big_h(esk4_0), [~(big_f(esk4_0))]
  3: big_h(esk4_0), [~(big_g(esk4_0))]
  4: [~(big_h(esk3_0))], big_g(esk4_0), big_f(esk4_0)
  5: big_h(esk3_0), [~(big_f(esk3_0))]
  6: big_h(esk3_0), [~(big_g(esk3_0))]

Gamma_7: (extend-no-conflict)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))
  1: [~(big_h(esk4_0))], ~(big_h(esk3_0))
  2: big_h(esk4_0), [~(big_f(esk4_0))]
  3: big_h(esk4_0), [~(big_g(esk4_0))]
  4: [~(big_h(esk3_0))], big_g(esk4_0), big_f(esk4_0)
  5: big_h(esk3_0), [~(big_f(esk3_0))]
  6: big_h(esk3_0), [~(big_g(esk3_0))]
  7: [~(big_f(esk2_0))], big_f(esk3_0)

Gamma_8: (extend-conflict)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))
  1: [~(big_h(esk4_0))], ~(big_h(esk3_0))
  2: big_h(esk4_0), [~(big_f(esk4_0))]
  3: big_h(esk4_0), [~(big_g(esk4_0))]
  4: [~(big_h(esk3_0))], big_g(esk4_0), big_f(esk4_0)
  5: big_h(esk3_0), [~(big_f(esk3_0))]
  6: big_h(esk3_0), [~(big_g(esk3_0))]
  7: [~(big_f(esk2_0))], big_f(esk3_0)
  8: [big_g(esk3_0)], big_f(esk3_0)

Gamma_9: (move)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))
  1: [~(big_h(esk4_0))], ~(big_h(esk3_0))
  2: big_h(esk4_0), [~(big_f(esk4_0))]
  3: big_h(esk4_0), [~(big_g(esk4_0))]
  4: [~(big_h(esk3_0))], big_g(esk4_0), big_f(esk4_0)
  5: big_h(esk3_0), [~(big_f(esk3_0))]
  6: [big_g(esk3_0)], big_f(esk3_0)
  7: big_h(esk3_0), [~(big_g(esk3_0))]
  8: [~(big_f(esk2_0))], big_f(esk3_0)

Gamma_10: (resolve)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))
  1: [~(big_h(esk4_0))], ~(big_h(esk3_0))
  2: big_h(esk4_0), [~(big_f(esk4_0))]
  3: big_h(esk4_0), [~(big_g(esk4_0))]
  4: [~(big_h(esk3_0))], big_g(esk4_0), big_f(esk4_0)
  5: big_h(esk3_0), [~(big_f(esk3_0))]
  6: [big_g(esk3_0)], big_f(esk3_0)
  7: [big_h(esk3_0)], big_f(esk3_0)
  8: [~(big_f(esk2_0))], big_f(esk3_0)

Gamma_11: (extend-conflict)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))
  1: [~(big_h(esk4_0))], ~(big_h(esk3_0))
  2: big_h(esk4_0), [~(big_f(esk4_0))]
  3: big_h(esk4_0), [~(big_g(esk4_0))]
  4: [~(big_h(esk3_0))], big_g(esk4_0), big_f(esk4_0)
  5: big_h(esk3_0), [~(big_f(esk3_0))]
  6: [big_g(esk3_0)], big_f(esk3_0)
  7: big_h(esk3_0), [big_f(esk3_0)]
  8: [~(big_f(esk2_0))], big_f(esk3_0)

Gamma_12: (move)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))
  1: [~(big_h(esk4_0))], ~(big_h(esk3_0))
  2: big_h(esk4_0), [~(big_f(esk4_0))]
  3: big_h(esk4_0), [~(big_g(esk4_0))]
  4: [~(big_h(esk3_0))], big_g(esk4_0), big_f(esk4_0)
  5: big_h(esk3_0), [big_f(esk3_0)]
  6: big_h(esk3_0), [~(big_f(esk3_0))]
  7: [big_g(esk3_0)], big_f(esk3_0)
  8: [~(big_f(esk2_0))], big_f(esk3_0)

Gamma_13: (resolve)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))
  1: [~(big_h(esk4_0))], ~(big_h(esk3_0))
  2: big_h(esk4_0), [~(big_f(esk4_0))]
  3: big_h(esk4_0), [~(big_g(esk4_0))]
  4: [~(big_h(esk3_0))], big_g(esk4_0), big_f(esk4_0)
  5: big_h(esk3_0), [big_f(esk3_0)]
  6: [big_h(esk3_0)]

Gamma_14: (extend-conflict)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))
  1: [~(big_h(esk4_0))], ~(big_h(esk3_0))
  2: big_h(esk4_0), [~(big_f(esk4_0))]
  3: big_h(esk4_0), [~(big_g(esk4_0))]
  4: [~(big_h(esk3_0))], big_g(esk4_0), big_f(esk4_0)
  5: big_h(esk3_0), [big_f(esk3_0)]
  6: [big_h(esk3_0)]

Gamma_15: (move)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))
  1: [~(big_h(esk4_0))], ~(big_h(esk3_0))
  2: big_h(esk4_0), [~(big_f(esk4_0))]
  3: big_h(esk4_0), [~(big_g(esk4_0))]
  4: [big_h(esk3_0)]
  5: [~(big_h(esk3_0))], big_g(esk4_0), big_f(esk4_0)
  6: big_h(esk3_0), [big_f(esk3_0)]

Gamma_16: (resolve)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))
  1: [~(big_h(esk4_0))], ~(big_h(esk3_0))
  2: big_h(esk4_0), [~(big_f(esk4_0))]
  3: big_h(esk4_0), [~(big_g(esk4_0))]
  4: [big_h(esk3_0)]
  5: [big_g(esk4_0)], big_f(esk4_0)

Gamma_17: (extend-conflict)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))
  1: [~(big_h(esk4_0))], ~(big_h(esk3_0))
  2: big_h(esk4_0), [~(big_f(esk4_0))]
  3: big_h(esk4_0), [~(big_g(esk4_0))]
  4: [big_h(esk3_0)]
  5: [big_g(esk4_0)], big_f(esk4_0)

Gamma_18: (move)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))
  1: [~(big_h(esk4_0))], ~(big_h(esk3_0))
  2: big_h(esk4_0), [~(big_f(esk4_0))]
  3: [big_g(esk4_0)], big_f(esk4_0)
  4: big_h(esk4_0), [~(big_g(esk4_0))]
  5: [big_h(esk3_0)]

Gamma_19: (resolve)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))
  1: [~(big_h(esk4_0))], ~(big_h(esk3_0))
  2: big_h(esk4_0), [~(big_f(esk4_0))]
  3: [big_g(esk4_0)], big_f(esk4_0)
  4: [big_h(esk4_0)], big_f(esk4_0)
  5: [big_h(esk3_0)]

Gamma_20: (extend-conflict)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))
  1: [~(big_h(esk4_0))], ~(big_h(esk3_0))
  2: big_h(esk4_0), [~(big_f(esk4_0))]
  3: [big_g(esk4_0)], big_f(esk4_0)
  4: big_h(esk4_0), [big_f(esk4_0)]
  5: [big_h(esk3_0)]

Gamma_21: (move)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))
  1: [~(big_h(esk4_0))], ~(big_h(esk3_0))
  2: big_h(esk4_0), [big_f(esk4_0)]
  3: big_h(esk4_0), [~(big_f(esk4_0))]
  4: [big_g(esk4_0)], big_f(esk4_0)
  5: [big_h(esk3_0)]

Gamma_22: (resolve)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))
  1: [~(big_h(esk4_0))], ~(big_h(esk3_0))
  2: big_h(esk4_0), [big_f(esk4_0)]
  3: [big_h(esk4_0)]
  4: [big_h(esk3_0)]

Gamma_23: (extend-conflict)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))
  1: [~(big_h(esk4_0))], ~(big_h(esk3_0))
  2: big_h(esk4_0), [big_f(esk4_0)]
  3: [big_h(esk4_0)]
  4: [big_h(esk3_0)]

Gamma_24: (move)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))
  1: [big_h(esk4_0)]
  2: [~(big_h(esk4_0))], ~(big_h(esk3_0))
  3: big_h(esk4_0), [big_f(esk4_0)]
  4: [big_h(esk3_0)]

Gamma_25: (resolve)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))
  1: [big_h(esk4_0)]
  2: [~(big_h(esk3_0))]
  3: [big_h(esk3_0)]

Gamma_26: (extend-conflict)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))
  1: [big_h(esk4_0)]
  2: [~(big_h(esk3_0))]
  3: [big_h(esk3_0)]

Gamma_27: (move)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))
  1: [big_h(esk4_0)]
  2: [big_h(esk3_0)]
  3: [~(big_h(esk3_0))]

Gamma_28: (resolve)
  0: [~(big_g(esk1_0))], ~(big_f(esk2_0))
  1: [big_h(esk4_0)]
  2: [big_h(esk3_0)]
  3: []

SZS status Unsatisfiable