Element = Lattice = Model = Element: Rb
Lattice: hcp
Model: Pair_Morse_Shifted_GirifalcoWeizer_MedCutoff_Rb__MO_147245690895_001
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: -0.863374
         Iterations: 40
         Function evaluations: 86
Tmp Lattice Constants: [ 5.03615602]
Tmp Energy: -0.863373731523
--------
Simplex search starting from: 5.0 * 0
Simplex search starting from: [2.25]
Optimization terminated successfully.
         Current function value: -0.863374
         Iterations: 41
         Function evaluations: 90
Tmp Lattice Constants: [ 5.03615607]
Tmp Energy: -0.863373731523
--------
Simplex search starting from: 5.0 * 0
Simplex search starting from: [2.5]
Optimization terminated successfully.
         Current function value: -0.863374
         Iterations: 39
         Function evaluations: 86
Tmp Lattice Constants: [ 5.03615582]
Tmp Energy: -0.863373731523
--------
Simplex search starting from: 5.0 * 0
Simplex search starting from: [2.75]
Optimization terminated successfully.
         Current function value: -0.863374
         Iterations: 39
         Function evaluations: 85
Tmp Lattice Constants: [ 5.036156]
Tmp Energy: -0.863373731523
--------
Simplex search starting from: 5.0 * 0
Simplex search starting from: [3.0]
Optimization terminated successfully.
         Current function value: -0.863374
         Iterations: 38
         Function evaluations: 84
Tmp Lattice Constants: [ 5.03615592]
Tmp Energy: -0.863373731523
--------
ERR: Lower energy is obtained by separating atoms beyond cutoff.
ERR: System Collapsed. Structure Maybe Unstable.