element(s): ['O', 'P'] AFLOW prototype label: A5B2_oP28_62_3cd_2c Parameter names: ['a', 'b/a', 'c/a', 'x1', 'z1', 'x2', 'z2', 'x3', 'z3', 'x4', 'z4', 'x5', 'z5', 'x6', 'y6', 'z6'] model type (only 'standard' supported at this time): standard number of parameter sets: 1 Parameter values for parameter set 0: ['9.66', '0.51137681', '0.7589648', '0.27569032', '0.49542795', '0.36121242', '0.83757644', '0.54014415', '0.40676747', '0.24617836', '0.70973491', '0.39580675', '0.34710765', '0.14280712', '0.99862541', '0.71912079'] model name: Sim_LAMMPS_ReaxFF_XiaoShiHao_2017_PHOC__SM_424780295507_000 ==== Building ASE atoms object with: ==== representative atom symbols = ['O', 'O', 'O', 'O', 'P', 'P'] representative atom coordinates = [[0.27569032 0.25 0.49542795] [0.36121242 0.25 0.83757644] [0.54014415 0.25 0.40676747] [0.14280712 0.99862541 0.71912079] [0.24617836 0.25 0.70973491] [0.39580675 0.25 0.34710765]] spacegroup = 62 cell = [[9.66, 0, 0], [0, 4.9399, 0], [0, 0, 7.3316]] ========================================= Step Time Energy fmax BFGS: 0 16:55:11 -119.467002 6.277838 BFGS: 1 16:55:11 -121.771026 2.117415 BFGS: 2 16:55:12 -123.101746 1.491722 BFGS: 3 16:55:12 -124.020015 1.129745 BFGS: 4 16:55:12 -124.375189 0.813583 BFGS: 5 16:55:13 -124.484191 0.816398 BFGS: 6 16:55:13 -124.725614 1.023714 BFGS: 7 16:55:14 -124.956204 1.287883 BFGS: 8 16:55:14 -125.184731 1.427590 BFGS: 9 16:55:15 -125.408805 1.471986 BFGS: 10 16:55:15 -125.623416 1.449680 BFGS: 11 16:55:15 -125.823558 1.377051 BFGS: 12 16:55:15 -126.005252 1.265650 BFGS: 13 16:55:15 -126.166061 1.122849 BFGS: 14 16:55:16 -126.305278 0.953202 BFGS: 15 16:55:16 -126.423920 0.759091 BFGS: 16 16:55:16 -126.524530 0.541906 BFGS: 17 16:55:16 -126.610812 0.352763 BFGS: 18 16:55:16 -126.687176 0.474627 BFGS: 19 16:55:16 -126.758751 0.557103 BFGS: 20 16:55:16 -126.833100 0.568104 BFGS: 21 16:55:16 -126.913819 0.580497 BFGS: 22 16:55:16 -127.001365 0.493616 BFGS: 23 16:55:16 -127.065875 0.369758 BFGS: 24 16:55:16 -127.111000 0.405148 BFGS: 25 16:55:16 -127.190463 0.527742 BFGS: 26 16:55:16 -127.255899 0.549373 BFGS: 27 16:55:17 -127.320233 0.558920 BFGS: 28 16:55:17 -127.384852 0.592650 BFGS: 29 16:55:17 -127.449639 0.617053 BFGS: 30 16:55:17 -127.514155 0.631262 BFGS: 31 16:55:18 -127.577774 0.634724 BFGS: 32 16:55:19 -127.639672 0.625415 BFGS: 33 16:55:19 -127.698911 0.600905 BFGS: 34 16:55:20 -127.754622 0.559091 BFGS: 35 16:55:20 -127.806116 0.498541 BFGS: 36 16:55:21 -127.852813 0.468939 BFGS: 37 16:55:22 -127.894092 0.462189 BFGS: 38 16:55:22 -127.929653 0.410957 BFGS: 39 16:55:23 -127.961030 0.345840 BFGS: 40 16:55:23 -127.992483 0.296161 BFGS: 41 16:55:24 -128.027714 0.260624 BFGS: 42 16:55:24 -128.066775 0.379943 BFGS: 43 16:55:25 -128.106937 0.466258 BFGS: 44 16:55:25 -128.145576 0.489931 BFGS: 45 16:55:25 -128.177400 0.527986 BFGS: 46 16:55:26 -128.217801 0.549784 BFGS: 47 16:55:27 -128.261738 0.439163 BFGS: 48 16:55:27 -128.300225 0.362066 BFGS: 49 16:55:28 -128.330601 0.484812 BFGS: 50 16:55:29 -128.356485 0.385899 BFGS: 51 16:55:30 -128.377181 0.393101 BFGS: 52 16:55:31 -128.399108 0.343526 BFGS: 53 16:55:32 -128.421393 0.386405 BFGS: 54 16:55:33 -128.443718 0.385291 BFGS: 55 16:55:33 -128.465052 0.355248 BFGS: 56 16:55:33 -128.484420 0.303017 BFGS: 57 16:55:34 -128.501021 0.237261 BFGS: 58 16:55:34 -128.514436 0.166603 BFGS: 59 16:55:35 -128.524675 0.120972 BFGS: 60 16:55:35 -128.532868 0.175138 BFGS: 61 16:55:36 -128.540041 0.209413 BFGS: 62 16:55:37 -128.552234 0.235908 BFGS: 63 16:55:37 -128.565637 0.237966 BFGS: 64 16:55:37 -128.579073 0.220400 BFGS: 65 16:55:37 -128.590131 0.187710 BFGS: 66 16:55:37 -128.599769 0.262784 BFGS: 67 16:55:37 -128.608956 0.288325 BFGS: 68 16:55:38 -128.617457 0.264772 BFGS: 69 16:55:38 -128.625666 0.203143 BFGS: 70 16:55:38 -128.632914 0.102860 BFGS: 71 16:55:39 -128.636736 0.094108 BFGS: 72 16:55:39 -128.638118 0.098350 BFGS: 73 16:55:40 -128.639229 0.104541 BFGS: 74 16:55:41 -128.639970 0.107975 BFGS: 75 16:55:41 -128.641783 0.113496 BFGS: 76 16:55:41 -128.645197 0.119223 BFGS: 77 16:55:42 -128.650154 0.143882 BFGS: 78 16:55:42 -128.654783 0.163478 BFGS: 79 16:55:42 -128.659447 0.172598 BFGS: 80 16:55:43 -128.664158 0.181140 BFGS: 81 16:55:44 -128.668869 0.185004 BFGS: 82 16:55:44 -128.673526 0.184639 BFGS: 83 16:55:45 -128.678076 0.180881 BFGS: 84 16:55:45 -128.682467 0.174305 BFGS: 85 16:55:46 -128.686650 0.165319 BFGS: 86 16:55:46 -128.690579 0.154224 BFGS: 87 16:55:46 -128.694209 0.141227 BFGS: 88 16:55:47 -128.697498 0.126482 BFGS: 89 16:55:47 -128.700406 0.110083 BFGS: 90 16:55:48 -128.702896 0.092069 BFGS: 91 16:55:48 -128.704929 0.072414 BFGS: 92 16:55:49 -128.706470 0.050994 BFGS: 93 16:55:49 -128.707489 0.053275 BFGS: 94 16:55:49 -128.707972 0.057996 BFGS: 95 16:55:50 -128.708111 0.058174 BFGS: 96 16:55:50 -128.709152 0.055775 BFGS: 97 16:55:51 -128.710131 0.067130 BFGS: 98 16:55:51 -128.711875 0.087348 BFGS: 99 16:55:52 -128.714166 0.092453 BFGS: 100 16:55:52 -128.716633 0.086815 BFGS: 101 16:55:52 -128.719187 0.069334 BFGS: 102 16:55:52 -128.720836 0.050445 BFGS: 103 16:55:53 -128.721831 0.033072 BFGS: 104 16:55:53 -128.722349 0.032742 BFGS: 105 16:55:53 -128.722466 0.032961 BFGS: 106 16:55:54 -128.722502 0.033209 BFGS: 107 16:55:54 -128.722623 0.033995 BFGS: 108 16:55:54 -128.722811 0.034707 BFGS: 109 16:55:55 -128.723355 0.035892 BFGS: 110 16:55:55 -128.724584 0.058918 BFGS: 111 16:55:56 -128.725828 0.070829 BFGS: 112 16:55:56 -128.727158 0.077390 BFGS: 113 16:55:56 -128.728548 0.080764 BFGS: 114 16:55:56 -128.729967 0.081994 BFGS: 115 16:55:57 -128.731389 0.081708 BFGS: 116 16:55:57 -128.732796 0.080343 BFGS: 117 16:55:57 -128.734169 0.078230 BFGS: 118 16:55:58 -128.735499 0.075622 BFGS: 119 16:55:58 -128.736778 0.072712 BFGS: 120 16:55:58 -128.738001 0.069646 BFGS: 121 16:55:58 -128.739166 0.066530 BFGS: 122 16:55:59 -128.740275 0.063442 BFGS: 123 16:55:59 -128.741327 0.060435 BFGS: 124 16:55:59 -128.742326 0.057547 BFGS: 125 16:56:00 -128.743275 0.054804 BFGS: 126 16:56:00 -128.744177 0.052223 BFGS: 127 16:56:00 -128.745035 0.049813 BFGS: 128 16:56:00 -128.745853 0.047579 BFGS: 129 16:56:01 -128.746634 0.045524 BFGS: 130 16:56:01 -128.747382 0.043648 BFGS: 131 16:56:01 -128.748100 0.041949 BFGS: 132 16:56:01 -128.748791 0.040424 BFGS: 133 16:56:02 -128.749459 0.039068 BFGS: 134 16:56:02 -128.750106 0.037878 BFGS: 135 16:56:02 -128.750736 0.036849 BFGS: 136 16:56:02 -128.751350 0.035976 BFGS: 137 16:56:03 -128.751952 0.035254 BFGS: 138 16:56:03 -128.752545 0.034677 BFGS: 139 16:56:03 -128.753130 0.034241 BFGS: 140 16:56:04 -128.753710 0.033942 BFGS: 141 16:56:04 -128.754287 0.033774 BFGS: 142 16:56:04 -128.754864 0.033745 BFGS: 143 16:56:04 -128.755443 0.033732 BFGS: 144 16:56:05 -128.756027 0.033691 BFGS: 145 16:56:05 -128.756617 0.033606 BFGS: 146 16:56:05 -128.757217 0.033471 BFGS: 147 16:56:05 -128.757827 0.033281 BFGS: 148 16:56:06 -128.758449 0.033037 BFGS: 149 16:56:06 -128.759084 0.032742 BFGS: 150 16:56:06 -128.759735 0.032397 BFGS: 151 16:56:06 -128.760401 0.032009 BFGS: 152 16:56:07 -128.761085 0.031582 BFGS: 153 16:56:07 -128.761787 0.031123 BFGS: 154 16:56:07 -128.762509 0.030636 BFGS: 155 16:56:08 -128.763252 0.030127 BFGS: 156 16:56:08 -128.764017 0.029602 BFGS: 157 16:56:08 -128.764805 0.029066 BFGS: 158 16:56:09 -128.765617 0.028525 BFGS: 159 16:56:09 -128.766454 0.027982 BFGS: 160 16:56:09 -128.767317 0.027442 BFGS: 161 16:56:09 -128.768207 0.026907 BFGS: 162 16:56:09 -128.769126 0.026383 BFGS: 163 16:56:09 -128.770073 0.025870 BFGS: 164 16:56:09 -128.771051 0.025373 BFGS: 165 16:56:10 -128.772059 0.024891 BFGS: 166 16:56:10 -128.773099 0.024428 BFGS: 167 16:56:10 -128.774171 0.023984 BFGS: 168 16:56:10 -128.775277 0.023560 BFGS: 169 16:56:10 -128.776417 0.023157 BFGS: 170 16:56:10 -128.777592 0.022776 BFGS: 171 16:56:11 -128.778803 0.022416 BFGS: 172 16:56:11 -128.780050 0.022694 BFGS: 173 16:56:11 -128.781333 0.023099 BFGS: 174 16:56:12 -128.782654 0.023512 BFGS: 175 16:56:12 -128.784013 0.023933 BFGS: 176 16:56:12 -128.785411 0.024362 BFGS: 177 16:56:13 -128.786847 0.024798 BFGS: 178 16:56:13 -128.788323 0.025241 BFGS: 179 16:56:13 -128.789838 0.025690 BFGS: 180 16:56:13 -128.791394 0.026145 BFGS: 181 16:56:14 -128.792990 0.026604 BFGS: 182 16:56:14 -128.794627 0.027069 BFGS: 183 16:56:14 -128.796304 0.027537 BFGS: 184 16:56:14 -128.798023 0.028009 BFGS: 185 16:56:15 -128.799782 0.028483 BFGS: 186 16:56:15 -128.801583 0.028960 BFGS: 187 16:56:15 -128.803425 0.029439 BFGS: 188 16:56:15 -128.805308 0.029918 BFGS: 189 16:56:16 -128.807233 0.030398 BFGS: 190 16:56:16 -128.809198 0.030878 BFGS: 191 16:56:16 -128.811204 0.031358 BFGS: 192 16:56:17 -128.813251 0.031836 BFGS: 193 16:56:17 -128.815338 0.032313 BFGS: 194 16:56:17 -128.817465 0.032787 BFGS: 195 16:56:17 -128.819632 0.033259 BFGS: 196 16:56:18 -128.821838 0.033727 BFGS: 197 16:56:18 -128.824082 0.034191 BFGS: 198 16:56:18 -128.826364 0.034650 BFGS: 199 16:56:18 -128.828684 0.035104 BFGS: 200 16:56:18 -128.831040 0.035552 BFGS: 201 16:56:18 -128.833433 0.035994 BFGS: 202 16:56:19 -128.835860 0.036429 BFGS: 203 16:56:19 -128.838321 0.036856 BFGS: 204 16:56:19 -128.840816 0.037275 BFGS: 205 16:56:19 -128.843343 0.037685 BFGS: 206 16:56:20 -128.845901 0.038086 BFGS: 207 16:56:20 -128.848488 0.038477 BFGS: 208 16:56:20 -128.851105 0.038857 BFGS: 209 16:56:21 -128.853749 0.039226 BFGS: 210 16:56:21 -128.856419 0.039582 BFGS: 211 16:56:21 -128.859114 0.039927 BFGS: 212 16:56:21 -128.861832 0.040258 BFGS: 213 16:56:22 -128.864572 0.040577 BFGS: 214 16:56:22 -128.867332 0.040880 BFGS: 215 16:56:22 -128.870110 0.041169 BFGS: 216 16:56:22 -128.872905 0.041443 BFGS: 217 16:56:23 -128.875715 0.041701 BFGS: 218 16:56:23 -128.878538 0.041942 BFGS: 219 16:56:23 -128.881372 0.042166 BFGS: 220 16:56:23 -128.884216 0.042372 BFGS: 221 16:56:24 -128.887067 0.042561 BFGS: 222 16:56:24 -128.889923 0.042729 BFGS: 223 16:56:24 -128.892783 0.042879 BFGS: 224 16:56:25 -128.895643 0.043008 BFGS: 225 16:56:25 -128.898503 0.043114 BFGS: 226 16:56:25 -128.901359 0.043200 BFGS: 227 16:56:25 -128.904210 0.043261 BFGS: 228 16:56:26 -128.907053 0.043296 BFGS: 229 16:56:26 -128.909888 0.043301 BFGS: 230 16:56:26 -128.912709 0.043280 BFGS: 231 16:56:26 -128.915520 0.043226 BFGS: 232 16:56:26 -128.918309 0.043147 BFGS: 233 16:56:27 -128.921086 0.043029 BFGS: 234 16:56:27 -128.923836 0.042892 BFGS: 235 16:56:27 -128.926572 0.042706 BFGS: 236 16:56:27 -128.929271 0.042514 BFGS: 237 16:56:28 -128.931958 0.042254 BFGS: 238 16:56:28 -128.934598 0.042008 BFGS: 239 16:56:28 -128.937226 0.041674 BFGS: 240 16:56:29 -128.939802 0.041368 BFGS: 241 16:56:29 -128.942359 0.040962 BFGS: 242 16:56:29 -128.944865 0.040591 BFGS: 243 16:56:30 -128.947343 0.040112 BFGS: 244 16:56:30 -128.949769 0.039680 BFGS: 245 16:56:30 -128.952162 0.039121 BFGS: 246 16:56:30 -128.954500 0.038637 BFGS: 247 16:56:31 -128.956800 0.037987 BFGS: 248 16:56:31 -128.959041 0.037466 BFGS: 249 16:56:31 -128.961243 0.036705 BFGS: 250 16:56:32 -128.963380 0.036175 BFGS: 251 16:56:32 -128.965478 0.035272 BFGS: 252 16:56:32 -128.967503 0.034765 BFGS: 253 16:56:33 -128.969492 0.033698 BFGS: 254 16:56:33 -128.971398 0.033215 BFGS: 255 16:56:33 -128.973270 0.032027 BFGS: 256 16:56:34 -128.975056 0.031560 BFGS: 257 16:56:34 -128.976802 0.030558 BFGS: 258 16:56:34 -128.978465 0.029951 BFGS: 259 16:56:35 -128.980078 0.028915 BFGS: 260 16:56:35 -128.981614 0.028147 BFGS: 261 16:56:36 -128.983091 0.027070 BFGS: 262 16:56:36 -128.984493 0.026163 BFGS: 263 16:56:36 -128.985831 0.025026 BFGS: 264 16:56:36 -128.987095 0.024004 BFGS: 265 16:56:37 -128.988291 0.022793 BFGS: 266 16:56:37 -128.989414 0.021672 BFGS: 267 16:56:37 -128.990465 0.020377 BFGS: 268 16:56:38 -128.991443 0.019170 BFGS: 269 16:56:38 -128.992348 0.017784 BFGS: 270 16:56:38 -128.993178 0.016503 BFGS: 271 16:56:39 -128.993934 0.015018 BFGS: 272 16:56:39 -128.994615 0.013679 BFGS: 273 16:56:39 -128.995221 0.012078 BFGS: 274 16:56:40 -128.995751 0.010708 BFGS: 275 16:56:40 -128.996206 0.009079 BFGS: 276 16:56:40 -128.996584 0.007674 BFGS: 277 16:56:40 -128.996887 0.006779 BFGS: 278 16:56:41 -128.997114 0.004809 BFGS: 279 16:56:41 -128.997265 0.005152 BFGS: 280 16:56:41 -128.997341 0.005119 BFGS: 281 16:56:42 -128.997351 0.004171 BFGS: 282 16:56:42 -128.997353 0.001203 BFGS: 283 16:56:42 -128.997354 0.001152 BFGS: 284 16:56:43 -128.997354 0.000314 BFGS: 285 16:56:43 -128.997354 0.000427 BFGS: 286 16:56:43 -128.997354 0.000210 BFGS: 287 16:56:44 -128.997354 0.000163 BFGS: 288 16:56:44 -128.997354 0.000125 BFGS: 289 16:56:44 -128.997354 0.000066 BFGS: 290 16:56:45 -128.997354 0.000053 BFGS: 291 16:56:45 -128.997354 0.000027 BFGS: 292 16:56:46 -128.997354 0.000010 BFGS: 293 16:56:46 -128.997354 0.000005 BFGS: 294 16:56:46 -128.997354 0.000002 BFGS: 295 16:56:47 -128.997354 0.000001 BFGS: 296 16:56:47 -128.997354 0.000000 BFGS: 297 16:56:47 -128.997354 0.000000 BFGS: 298 16:56:47 -128.997354 0.000000 BFGS: 299 16:56:48 -128.997354 0.000000 BFGS: 300 16:56:48 -128.997354 0.000000 BFGS: 301 16:56:48 -128.997354 0.000000 BFGS: 302 16:56:49 -128.997354 0.000000 BFGS: 303 16:56:49 -128.997354 0.000000 BFGS: 304 16:56:50 -128.997354 0.000000 Minimization converged after 304 steps. Maximum force component: 7.479903406052799e-09 eV/Angstrom Maximum stress component: 3.980822843309506e-11 eV/Angstrom^3 ==== Minimized structure obtained from ASE ==== symbols = ['O', 'O', 'O', 'O', 'O', 'O', 'O', 'O', 'O', 'O', 'O', 'O', 'O', 'O', 'O', 'O', 'O', 'O', 'O', 'O', 'P', 'P', 'P', 'P', 'P', 'P', 'P', 'P'] basis = [[2.30167615e-01 2.50000000e-01 3.36256698e-01] [2.69832385e-01 7.50000000e-01 8.36256698e-01] [7.69832385e-01 7.50000000e-01 6.63743302e-01] [7.30167615e-01 2.50000000e-01 1.63743302e-01] [2.54004644e-01 2.50000000e-01 8.40811495e-01] [2.45995356e-01 7.50000000e-01 3.40811495e-01] [7.45995356e-01 7.50000000e-01 1.59188505e-01] [7.54004644e-01 2.50000000e-01 6.59188505e-01] [4.26300615e-01 2.50000000e-01 5.68273971e-01] [7.36993855e-02 7.50000000e-01 6.82739706e-02] [5.73699385e-01 7.50000000e-01 4.31726029e-01] [9.26300615e-01 2.50000000e-01 9.31726029e-01] [8.90661403e-02 9.99423658e-01 6.45371551e-01] [4.10933860e-01 5.76341773e-04 1.45371551e-01] [9.10933860e-01 4.99423658e-01 3.54628449e-01] [5.89066140e-01 5.00576342e-01 8.54628449e-01] [9.10933860e-01 5.76341773e-04 3.54628449e-01] [5.89066140e-01 9.99423658e-01 8.54628449e-01] [8.90661403e-02 5.00576342e-01 6.45371551e-01] [4.10933860e-01 4.99423658e-01 1.45371551e-01] [1.70022926e-01 2.50000000e-01 6.22094915e-01] [3.29977074e-01 7.50000000e-01 1.22094915e-01] [8.29977074e-01 7.50000000e-01 3.77905085e-01] [6.70022926e-01 2.50000000e-01 8.77905085e-01] [3.68390119e-01 2.50000000e-01 3.08258268e-01] [1.31609881e-01 7.50000000e-01 8.08258268e-01] [6.31609881e-01 7.50000000e-01 6.91741732e-01] [8.68390119e-01 2.50000000e-01 1.91741732e-01]] cellpar = Cell([[12.4030377267857, -1.9342031510375968e-35, 0.0], [1.4274216962495293e-35, 5.4944830888359, 0.0], [0.0, 0.0, 5.41194842791365]]) forces = [[ 5.76421997e-10 -8.98906597e-46 -5.42178187e-09] [-5.76421997e-10 2.64549738e-33 -5.42178187e-09] [-5.76421997e-10 8.98906597e-46 5.42178187e-09] [ 5.76421997e-10 -8.46559161e-33 5.42178187e-09] [-2.34955093e-09 -6.77247329e-32 -4.30576171e-09] [ 2.34955093e-09 3.38623664e-32 -4.30576171e-09] [ 2.34955093e-09 8.46559161e-32 4.30576171e-09] [-2.34955093e-09 3.38623664e-32 4.30576171e-09] [-6.89441606e-11 -1.01587099e-31 -2.87036907e-10] [ 6.89441606e-11 6.77247329e-32 -2.87036907e-10] [ 6.89441606e-11 1.69311832e-31 2.87036907e-10] [-6.89441606e-11 3.38623664e-32 2.87036907e-10] [-5.48642329e-11 -2.88603764e-10 7.57246751e-10] [ 5.48642329e-11 2.88603764e-10 7.57246751e-10] [ 5.48642329e-11 -2.88603764e-10 -7.57246751e-10] [-5.48642329e-11 2.88603764e-10 -7.57246751e-10] [ 5.48642329e-11 2.88603764e-10 -7.57246751e-10] [-5.48642329e-11 -2.88603764e-10 -7.57246751e-10] [-5.48642329e-11 2.88603764e-10 7.57246751e-10] [ 5.48642329e-11 -2.88603764e-10 7.57246751e-10] [ 3.51882730e-09 -1.08359573e-30 7.47990341e-09] [-3.51882730e-09 -2.16719145e-30 7.47990341e-09] [-3.51882730e-09 -2.16719145e-30 -7.47990341e-09] [ 3.51882730e-09 -5.48746766e-45 -7.47990341e-09] [-1.45916457e-09 1.08359573e-30 1.58622852e-09] [ 1.45916457e-09 1.08359573e-30 1.58622852e-09] [ 1.45916457e-09 -2.27550764e-45 -1.58622852e-09] [-1.45916457e-09 1.08359573e-30 -1.58622852e-09]] stress = [ 1.62532368e-11 -3.98082284e-11 -2.64287213e-12 0.00000000e+00 0.00000000e+00 -6.25198955e-47] energy per atom = -4.530561524878054 =============================================== Parameter sets [0] relaxed to duplicate structures, attempting to write only one of them. Successfully added property instance for parameter set 0