Trace number 311137

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds, and are wall clock time (not CPU time).

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to X seconds (see the parameters in the trace). After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  5. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerCPU timeWall clock time
SATzilla RANDOMSAT 0.154975 0.157063

General information on the benchmark

Namerandom/2+p/p0.8/v1295/
unif2p-p0.8-v1295-c4027-S1476745538-08-SAT.cnf
MD5SUMc77e3fe2797ba24ba2baccdc1afa561c
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.028995
Satisfiable
(Un)Satisfiability was proved
Number of variables1294
Number of clauses4026
Sum of the clauses size11273
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2805
Number of clauses of size 33221
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.10/0.15	c run March_dl for 5 seconds ... 
0.10/0.15	c Bin: Executing march_dl
0.10/0.15	c child exited successfully
0.10/0.15	c march_dl returned code 10.
0.10/0.15	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.10/0.15	c main()::  **            Copyright (C) 2001-2004 M. Dufour, M. Heule, J. van Zwieten and H. van Maaren            **
0.10/0.15	c main()::   * This program may be redistributed and/or modified under the terms of the GNU Gereral Public License *
0.10/0.15	c main()::
0.10/0.15	c initFormula():: searching for DIMACS p-line....
0.10/0.15	c initFormula():: the DIMACS p-line indicates a CNF of 1295 variables and 4026 clauses.
0.10/0.15	c parseCNF():: parsing....
0.10/0.15	c parseCNF():: the CNF contains 0 unary clauses.
0.10/0.15	c runParser():: parsing was successful, warming up engines...
0.10/0.15	c simplify_formula():: removed 0 tautological, 139 satisfied and 0 duplicate clauses
0.10/0.15	c preprocessing fase I completed:: there are now 1259 free variables and 3887 clauses.
0.10/0.15	c shorten_equivalence(): average equivalence length reduced from nan to nan
0.10/0.15	c doublelook_init():: 90% succes rate goal.
0.10/0.15	c root_subsume():: 16 ternary clauses were subsumed, nrofceq = 19
0.10/0.15	c find_and_remove_tautogolies():: found and removed 18 tautologies
0.10/0.15	c root_subsume():: 1 ternary clauses were subsumed, nrofceq = 20
0.10/0.15	c find_and_remove_tautogolies():: found and removed 1 tautologies
0.10/0.15	c root_subsume():: 0 ternary clauses were subsumed, nrofceq = 20
0.10/0.15	c lessRedundantTransformation():: nothing to be done.
0.10/0.15	c transformTo3SAT():: you gave me 1295 variables and 3876 clauses.
0.10/0.15	c transformTo3SAT():: by the way, the maximal clause length before transformation was 3.
0.10/0.15	c transformTo3SAT():: CHAINPLUS defined.
0.10/0.15	c transformTo3SAT():: I will add 0 variables and 0 clauses!
0.10/0.15	c transformTo3SAT():: the transformation yielded 1295 variabels and 3876 clauses.
0.10/0.15	c main():: clause / variable ratio: ( 3876 / 1295 ) = 2.99
0.10/0.15	c doublelook_init():: 90% succes rate goal.
0.10/0.15	c AddTernaryResolvents(): ternary clauses increased from 3876 to 3911
0.10/0.15	c root_subsume():: 0 ternary clauses were subsumed, nrofceq = 20
0.10/0.15	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.10/0.15	c check_ternary_clause_density :: low
0.10/0.15	c root full lookahead
0.10/0.15	c freevars: 1237, independend: 1237, ternary clauses: 3118 
0.10/0.15	c main():: all systems go!
0.10/0.15	c |----------------------------------------------------------------|
c |
0.10/0.15	c
0.10/0.15	c main():: nodeCount: 201
0.10/0.15	c main():: dead ends in main: 0
0.10/0.15	c main():: lookAheadCount: 71527
0.10/0.15	c main():: unitResolveCount: 1524
0.10/0.15	c main():: time=0.140000
0.10/0.15	c main():: necessary_assignments: 16
0.10/0.15	c main():: bin_sat: 0, bin_unsat 0
0.10/0.15	c main():: doublelook: #: 55, succes #: 47
0.10/0.15	c main():: doublelook: succesrate: 85.455, threshold: 0.122 * nrofvars
0.10/0.15	c main():: SOLUTION VERIFIED :-)
0.10/0.15	s SATISFIABLE
0.10/0.15	v 1 -2 -3 4 5 6 -7 -8 9 10 -11 12 13 14 15 -16 -17 -18 19 20 21 22 23 24 -25 26 -27 28 -29 30 31 -32 -33 -34 35 36 37 38 39 40 -41 -42 43 -44 -45 46 47 48 49 50 51 52 53 54 55 56 57 58 -59 60 61 -62 63 -64 65 66 67 68 -69 -70 71 72 -73 74 -75 -76 77 78 79 80 81 82 -83 84 -85 -86 87 -88 -89 -90 -91 -92 -93 -94 -95 96 -97 98 -99 -100 101 -102 -103 -104 -105 -106 -107 -108 -109 110 -111 112 113 -114 115 116 117 -118 -119 -120 -121 -122 123 124 -125 -126 127 128 129 130 131 -132 133 134 135 136 137 138 -139 -140 141 -142 143 144 -145 146 -147 -148 149 -150 -151 -152 -153 -154 155 -156 -157 158 159 160 -161 162 163 -164 -165 166 -167 -168 169 -170 171 -172 173 174 175 -176 -177 178 179 180 181 -182 -183 184 185 -186 187 -188 189 190 191 192 -193 194 -195 196 197 198 199 200 201 -202 -203 204 -205 -206 207 -208 -209 -210 -211 212 -213 214 -215 -216 217 -218 219 220 -221 222 -223 224 -225 -226 227 228 229 230 231 232 -233 234 235 236 -237 -238 239 240 241 242 243 -244 245 -246 -247 -248 249 250 251 252 -253 254 -255 -256 257 258 259 260 -261 -262 -263 -264 265 266 -267 -268 269 270 -271 272 -273 274 275 -276 277 278 279 280 281 -282 283 284 -285 286 287 288 289 -290 -291 292 293 -294 295 296 297 298 299 -300 -301 302 303 304 -305 306 307 308 309 310 311 -312 -313 314 -315 316 -317 -318 -319 -320 321 -322 323 -324 325 -326 -327 -328 -329 -330 331 -332 -333 -334 335 -336 -337 338 -339 -340 -341 -342 343 -344 -345 346 -347 348 -349 350 -351 -352 -353 354 355 -356 357 358 359 -360 -361 362 363 -364 -365 366 -367 368 -369 -370 371 372 373 374 375 376 -377 378 -379 -380 -381 382 -383 -384 385 -386 387 -388 -389 390 -391 -392 393 -394 -395 -396 397 398 399 400 401 402 -403 404 -405 -406 407 408 -409 410 -411 -412 -413 -414 415 -416 417 -418 419 420 -421 422 423 -424 -425 -426 427 428 -429 430 431 -432 -433 434 -435 -436 -437 438 -439 440 -441 442 443 -444 446 447 -448 449 -450 451 452 453 454 455 -456 -457 458 -459 460 -461 462 -463 -464 465 466 467 -468 469 -470 -471 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-923 -924 -925 -926 927 928 929 930 -931 -932 933 -934 935 -936 937 938 -939 -940 941 942 -943 944 -945 946 947 948 949 -950 951 952 953 954 -955 956 957 -958 959 -960 -961 962 963 964 965 -966 967 968 969 970 -971 -972 -973 -974 975 976 -977 -978 -979 -980 -981 982 -983 -984 -985 -986 987 -988 989 990 991 992 -993 994 -995 -996 997 998 999 1000 1001 -1002 1003 -1004 1005 -1006 -1007 -1008 -1009 1010 1011 1012 -1013 1014 1015 1016 -1017 1018 1019 -1020 1021 1022 1023 1024 -1025 1026 1027 -1028 1029 -1030 -1031 1032 -1033 -1034 1035 1036 1037 -1038 1039 1040 1041 1042 1043 1044 -1045 -1046 -1047 -1048 -1049 1050 -1051 -1052 -1053 1054 1055 -1056 1057 1058 1059 1060 -1061 -1062 -1063 1064 1065 -1066 1067 1068 1069 -1070 1071 -1072 1073 1074 -1075 -1076 1077 1078 -1079 1080 -1081 1082 1083 1084 1085 -1086 1087 1088 1089 1090 1091 -1092 1093 -1094 -1095 -1096 1097 -1098 1099 -1100 -1101 -1102 -1103 1104 -1105 1106 1107 -1108 1109 -1110 -1111 -1112 1113 -1114 -1115 -1116 -1117 1118 -1119 -1120 -1121 1122 1123 -1124 -1125 1126 -1127 -1128 1129 -1130 -1131 -1132 1133 1134 -1135 1136 1137 1138 1139 1140 1141 1142 1143 -1144 -1145 -1146 1147 1148 -1149 -1150 -1151 1152 1153 1154 -1155 1156 1157 -1158 1159 1160 -1161 1162 -1163 -1164 1165 -1166 1167 1168 1169 1170 -1171 1172 1173 1174 -1175 1176 1177 1178 -1179 1180 1181 1182 1183 -1184 -1185 -1186 -1187 1188 -1189 -1190 -1191 1192 -1193 1194 1195 1196 1197 -1198 -1199 -1200 1201 1202 -1203 1204 1205 -1206 -1207 -1208 -1209 1210 1211 1212 -1213 1214 1215 1216 -1217 1218 1219 -1220 1221 1222 -1223 1224 1225 -1226 1227 1228 -1229 1230 1231 1232 1233 -1234 -1235 1236 1237 1238 1239 1240 1241 1242 1243 -1244 1245 1246 -1247 1248 -1249 -1250 1251 -1252 1253 -1254 1255 1256 -1257 1258 1259 1260 -1261 1262 1263 1264 -1265 -1266 -1267 -1268 1269 1270 -1271 -1272 -1273 -1274 -1275 -1276 -1277 1278 -1279 -1280 1281 1282 1283 -1284 1285 -1286 1287 -1288 -1289 1290 1291 -1292 -1293 -1294 -1295 0
0.10/0.15	c SATZILLA_TIME=0.140000

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node13/watcher-311137-1172564560 -o ROOT/results/node13/solver-311137-1172564560 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/311137-1172564560/SATzilla2007_R /tmp/evaluation/311137-1172564560/instance-311137-1172564560.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.89 0.95 0.98 3/77 25004
/proc/meminfo: memFree=1705544/2055920 swapFree=4192812/4192956
[pid=25004] ppid=25002 vsize=1440 CPUtime=0
/proc/25004/stat : 25004 (SATzilla2007_R) S 25002 25004 23333 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 276410600 1474560 110 18446744073709551615 134512640 135579813 4294956688 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/25004/statm: 360 110 95 260 0 84 0
[pid=25005] ppid=25004 vsize=768 CPUtime=0
/proc/25005/stat : 25005 (march_dl) R 25004 25004 23333 0 -1 4194304 101 0 0 0 0 0 0 0 19 0 1 0 276410600 786432 96 18446744073709551615 134512640 134996440 4294956720 18446744073709551615 134549887 0 0 8392704 0 0 0 0 17 1 0 0
/proc/25005/statm: 192 96 50 118 0 71 0

[startup+0.107008 s]
/proc/loadavg: 0.89 0.95 0.98 3/77 25004
/proc/meminfo: memFree=1705544/2055920 swapFree=4192812/4192956
[pid=25004] ppid=25002 vsize=1440 CPUtime=0
/proc/25004/stat : 25004 (SATzilla2007_R) S 25002 25004 23333 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 276410600 1474560 110 18446744073709551615 134512640 135579813 4294956688 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/25004/statm: 360 110 95 260 0 84 0
[pid=25005] ppid=25004 vsize=1984 CPUtime=0.1
/proc/25005/stat : 25005 (march_dl) R 25004 25004 23333 0 -1 4194304 435 0 0 0 10 0 0 0 20 0 1 0 276410600 2031616 427 18446744073709551615 134512640 134996440 4294956720 18446744073709551615 134532986 0 0 8392704 0 0 0 0 17 1 0 0
/proc/25005/statm: 496 427 74 118 0 375 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 3424

Solver just ended. Dumping a history of the last processes samples

[startup+0.107008 s]
/proc/loadavg: 0.89 0.95 0.98 3/77 25004
/proc/meminfo: memFree=1705544/2055920 swapFree=4192812/4192956
[pid=25004] ppid=25002 vsize=1440 CPUtime=0
/proc/25004/stat : 25004 (SATzilla2007_R) S 25002 25004 23333 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 276410600 1474560 110 18446744073709551615 134512640 135579813 4294956688 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/25004/statm: 360 110 95 260 0 84 0
[pid=25005] ppid=25004 vsize=1984 CPUtime=0.1
/proc/25005/stat : 25005 (march_dl) R 25004 25004 23333 0 -1 4194304 435 0 0 0 10 0 0 0 20 0 1 0 276410600 2031616 427 18446744073709551615 134512640 134996440 4294956720 18446744073709551615 134532986 0 0 8392704 0 0 0 0 17 1 0 0
/proc/25005/statm: 496 427 74 118 0 375 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 3424

Child status: 10
Real time (s): 0.157063
CPU time (s): 0.154975
CPU user time (s): 0.147977
CPU system time (s): 0.006998
CPU usage (%): 98.6706
Max. virtual memory (cumulated for all children) (KiB): 3424

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.147977
system time used= 0.006998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 596
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 13
involuntary context switches= 8

runsolver used 0.002999 second user time and 0.005999 second system time

The end

Launcher Data (download as text)

Begin job on node13 on Tue Feb 27 08:22:41 UTC 2007

IDJOB= 311137
IDBENCH= 20305
IDSOLVER= 134
FILE ID= node13/311137-1172564560

PBS_JOBID= 3971661

Free space on /tmp= 66548 MiB

SOLVER NAME= SATzilla RANDOM
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.8/v1295/unif2p-p0.8-v1295-c4027-S1476745538-08-SAT.cnf
COMMAND LINE= /tmp/evaluation/311137-1172564560/SATzilla2007_R /tmp/evaluation/311137-1172564560/instance-311137-1172564560.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node13/watcher-311137-1172564560 -o ROOT/results/node13/solver-311137-1172564560 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/311137-1172564560/SATzilla2007_R /tmp/evaluation/311137-1172564560/instance-311137-1172564560.cnf            

META MD5SUM SOLVER= 44dcaa7dbf032757655ae5e30ee65a10
MD5SUM BENCH=  c77e3fe2797ba24ba2baccdc1afa561c

RANDOM SEED= 362518972

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node13.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.236
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.236
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1706080 kB
Buffers:         42348 kB
Cached:         189328 kB
SwapCached:          0 kB
Active:         253616 kB
Inactive:        32572 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1706080 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            8504 kB
Writeback:           0 kB
Mapped:          73472 kB
Slab:            49232 kB
Committed_AS:  1084664 kB
PageTables:       1744 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66548 MiB

End job on node13 on Tue Feb 27 08:22:42 UTC 2007