Element = Lattice = Model = Element: C Lattice: hcp Model: Sim_LAMMPS_Vashishta_VashishtaKaliaNakano_2007_SiC__SM_196548226654_000 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: 0.000000 Iterations: 41 Function evaluations: 116 Tmp Lattice Constants: [8.3] Tmp Energy: 0.0 -------- Simplex search starting from: 5.0 * 0 Simplex search starting from: [2.25] Optimization terminated successfully. Current function value: 0.000000 Iterations: 41 Function evaluations: 116 Tmp Lattice Constants: [7.5375] Tmp Energy: 0.0 -------- Simplex search starting from: 5.0 * 0 Simplex search starting from: [2.5] Optimization terminated successfully. Current function value: 0.000000 Iterations: 41 Function evaluations: 116 Tmp Lattice Constants: [8.375] Tmp Energy: 0.0 -------- Simplex search starting from: 5.0 * 0 Simplex search starting from: [2.75] Optimization terminated successfully. Current function value: 0.000000 Iterations: 41 Function evaluations: 116 Tmp Lattice Constants: [9.2125] Tmp Energy: 0.0 -------- Simplex search starting from: 5.0 * 0 Simplex search starting from: [3.0] Optimization terminated successfully. Current function value: 0.000000 Iterations: 40 Function evaluations: 114 Tmp Lattice Constants: [7.65] Tmp Energy: 0.0 -------- ERR: Lower energy is obtained by separating atoms beyond cutoff. ERR: System Collapsed. Structure Maybe Unstable.