Element = Lattice = Model = Element: Rb
Lattice: hcp
Model: Morse_Shifted_GirifalcoWeizer_1959LowCutoff_Rb__MO_754498969542_002
Relaxation with c/a ratio fixed
Simplex search starting from: 5.0 * 0
Simplex search starting from: [2.0]
Creating new atoms: (1, 1, 1)
Optimization terminated successfully.
         Current function value: -0.781347
         Iterations: 40
         Function evaluations: 85
Tmp Lattice Constants: [5.1859562]
Tmp Energy: -0.7813473996845042
--------
Simplex search starting from: 5.0 * 0
Simplex search starting from: [2.25]
Optimization terminated successfully.
         Current function value: -0.781347
         Iterations: 39
         Function evaluations: 84
Tmp Lattice Constants: [5.18595622]
Tmp Energy: -0.781347399684501
--------
Simplex search starting from: 5.0 * 0
Simplex search starting from: [2.5]
Optimization terminated successfully.
         Current function value: -0.781347
         Iterations: 39
         Function evaluations: 85
Tmp Lattice Constants: [5.18595627]
Tmp Energy: -0.7813473996845027
--------
Simplex search starting from: 5.0 * 0
Simplex search starting from: [2.75]
Optimization terminated successfully.
         Current function value: -0.781347
         Iterations: 40
         Function evaluations: 85
Tmp Lattice Constants: [5.18595622]
Tmp Energy: -0.7813473996845033
--------
Simplex search starting from: 5.0 * 0
Simplex search starting from: [3.0]
Optimization terminated successfully.
         Current function value: -0.781347
         Iterations: 39
         Function evaluations: 83
Tmp Lattice Constants: [5.18595622]
Tmp Energy: -0.7813473996845038
--------
ERR: Lower energy is obtained by separating atoms beyond cutoff.
ERR: System Collapsed. Structure Maybe Unstable.