Element = Lattice = Model = Element: Rb
Lattice: hcp
Model: Morse_Shifted_GirifalcoWeizer_1959HighCutoff_Rb__MO_908110223949_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: -0.890107
         Iterations: 42
         Function evaluations: 93
Tmp Lattice Constants: [5.00361362]
Tmp Energy: -0.8901071632291502
--------
Simplex search starting from: 5.0 * 0
Simplex search starting from: [2.25]
Optimization terminated successfully.
         Current function value: -0.890107
         Iterations: 40
         Function evaluations: 86
Tmp Lattice Constants: [5.00361354]
Tmp Energy: -0.8901071632291462
--------
Simplex search starting from: 5.0 * 0
Simplex search starting from: [2.5]
Optimization terminated successfully.
         Current function value: -0.890107
         Iterations: 39
         Function evaluations: 86
Tmp Lattice Constants: [5.00361341]
Tmp Energy: -0.8901071632291454
--------
Simplex search starting from: 5.0 * 0
Simplex search starting from: [2.75]
Optimization terminated successfully.
         Current function value: -0.890107
         Iterations: 38
         Function evaluations: 85
Tmp Lattice Constants: [5.00361339]
Tmp Energy: -0.8901071632291381
--------
Simplex search starting from: 5.0 * 0
Simplex search starting from: [3.0]
Optimization terminated successfully.
         Current function value: -0.890107
         Iterations: 38
         Function evaluations: 82
Tmp Lattice Constants: [5.00361349]
Tmp Energy: -0.890107163229147
--------
ERR: Lower energy is obtained by separating atoms beyond cutoff.
ERR: System Collapsed. Structure Maybe Unstable.