Trace number 311515

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
sapsrt 2007-02-08SAT 0.977851 0.980704

General information on the benchmark

Namerandom/2+p/p0.8/v2035/
unif2p-p0.8-v2035-c6328-S668297284-15-SAT.cnf
MD5SUM4d15e4ef1977463310683c8d04611f9d
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.433933
Satisfiable
(Un)Satisfiability was proved
Number of variables2035
Number of clauses6327
Sum of the clauses size17716
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 21265
Number of clauses of size 35062
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.92/0.97	c 
0.92/0.97	c UBCSAT version 1.1.0rr
0.92/0.97	c 
0.92/0.97	c http://www.satlib.org/ubcsat
0.92/0.97	c 
0.92/0.97	c ubcsat -h for help
0.92/0.97	c 
0.92/0.97	c  -runs 1 
0.92/0.97	c  -cutoff 4294967295 
0.92/0.97	c  -timeout 0.000000 
0.92/0.97	c  -gtimeout 0.000000 
0.92/0.97	c  -noimprove 0 
0.92/0.97	c  -target 0 
0.92/0.97	c  -wtarget 0.000000 
0.92/0.97	c  -seed 96302342 
0.92/0.97	c  -solve 0 
0.92/0.97	c  -find,-numsol 0 
0.92/0.97	c  -findunique 0 
0.92/0.97	c  -srestart 0 
0.92/0.97	c  -prestart 0.000000 
0.92/0.97	c  -drestart 0 
0.92/0.97	c 
0.92/0.97	c  -alpha 1.126000 
0.92/0.97	c  -rho 0.666000 
0.92/0.97	c  -ps 0.033000 
0.92/0.97	c  -wp 0.060000 
0.92/0.97	c  -sapsthresh -0.100000 
0.92/0.97	c 
0.92/0.97	s SATISFIABLE
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0.92/0.97	v  -11 -12 -13 14 15 16 17 -18 -19 20
0.92/0.97	v  -21 -22 -23 24 25 26 27 28 29 30
0.92/0.97	v  31 32 -33 -34 -35 36 -37 -38 -39 -40
0.92/0.97	v  41 42 43 -44 45 46 -47 -48 49 -50
0.92/0.97	v  -51 -52 53 54 55 -56 57 -58 -59 60
0.92/0.97	v  -61 -62 63 64 65 -66 67 -68 69 -70
0.92/0.97	v  71 -72 73 74 -75 -76 77 -78 -79 80
0.92/0.97	v  81 -82 -83 84 85 -86 -87 -88 -89 -90
0.92/0.97	v  91 92 -93 94 -95 96 -97 98 -99 100
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0.92/0.97	v  -161 162 163 -164 -165 166 167 168 169 170
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0.92/0.97	v  971 972 -973 974 -975 -976 977 -978 979 980
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0.92/0.97	v  1001 -1002 1003 -1004 1005 -1006 -1007 1008 -1009 -1010
0.92/0.97	v  1011 1012 -1013 1014 1015 1016 1017 -1018 1019 1020
0.92/0.97	v  1021 1022 -1023 1024 -1025 1026 -1027 1028 1029 -1030
0.92/0.97	v  1031 1032 1033 -1034 1035 1036 -1037 1038 1039 1040
0.92/0.97	v  1041 -1042 -1043 -1044 -1045 -1046 -1047 1048 -1049 1050
0.92/0.97	v  -1051 -1052 -1053 1054 -1055 1056 -1057 1058 1059 1060
0.92/0.97	v  1061 1062 -1063 -1064 1065 1066 1067 1068 1069 1070
0.92/0.97	v  1071 -1072 1073 1074 -1075 -1076 -1077 1078 1079 1080
0.92/0.97	v  -1081 1082 -1083 1084 -1085 -1086 -1087 1088 1089 -1090
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0.92/0.97	v  1101 1102 -1103 -1104 1105 -1106 -1107 1108 -1109 1110
0.92/0.97	v  1111 1112 -1113 -1114 1115 -1116 1117 1118 1119 1120
0.92/0.97	v  1121 1122 1123 1124 -1125 -1126 1127 1128 1129 1130
0.92/0.97	v  1131 1132 -1133 1134 1135 -1136 -1137 1138 1139 -1140
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0.92/0.97	v  -1201 1202 1203 1204 1205 -1206 1207 1208 -1209 1210
0.92/0.97	v  -1211 1212 -1213 -1214 -1215 1216 1217 -1218 1219 -1220
0.92/0.97	v  1221 -1222 -1223 1224 -1225 -1226 1227 1228 -1229 -1230
0.92/0.97	v  -1231 1232 1233 1234 1235 -1236 -1237 1238 -1239 1240
0.92/0.97	v  1241 1242 -1243 -1244 1245 1246 1247 1248 1249 -1250
0.92/0.97	v  -1251 -1252 -1253 -1254 -1255 1256 -1257 -1258 1259 1260
0.92/0.97	v  1261 -1262 -1263 1264 1265 -1266 1267 -1268 1269 1270
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0.92/0.97	v  1291 1292 -1293 -1294 1295 -1296 1297 1298 1299 1300
0.92/0.97	v  1301 1302 1303 -1304 1305 -1306 1307 1308 1309 -1310
0.92/0.97	v  -1311 1312 1313 -1314 -1315 -1316 -1317 -1318 1319 1320
0.92/0.97	v  -1321 1322 -1323 -1324 1325 -1326 -1327 1328 -1329 1330
0.92/0.97	v  1331 1332 1333 -1334 1335 -1336 1337 -1338 1339 1340
0.92/0.97	v  1341 1342 1343 -1344 1345 1346 1347 -1348 1349 1350
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0.92/0.97	v  1411 1412 -1413 1414 -1415 -1416 -1417 -1418 1419 -1420
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0.92/0.97	v  -1471 -1472 1473 1474 -1475 1476 1477 -1478 -1479 1480
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0.92/0.97	v  -1491 -1492 -1493 1494 1495 -1496 -1497 1498 1499 -1500
0.92/0.97	v  1501 1502 1503 1504 1505 1506 1507 -1508 -1509 1510
0.92/0.97	v  1511 -1512 1513 1514 -1515 1516 1517 -1518 1519 1520
0.92/0.97	v  -1521 1522 -1523 1524 -1525 -1526 1527 1528 1529 1530
0.92/0.97	v  1531 -1532 1533 -1534 1535 -1536 -1537 1538 1539 1540
0.92/0.97	v  -1541 -1542 1543 -1544 1545 1546 -1547 1548 1549 1550
0.92/0.97	v  1551 1552 1553 -1554 1555 1556 1557 1558 -1559 -1560
0.92/0.97	v  1561 -1562 -1563 -1564 -1565 1566 1567 1568 1569 1570
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0.92/0.97	v  -1601 1602 1603 -1604 1605 -1606 -1607 -1608 1609 1610
0.92/0.97	v  1611 -1612 1613 -1614 -1615 -1616 -1617 1618 1619 -1620
0.92/0.97	v  -1621 -1622 1623 -1624 -1625 -1626 -1627 1628 1629 -1630
0.92/0.97	v  1631 1632 -1633 -1634 1635 1636 1637 -1638 1639 -1640
0.92/0.97	v  1641 -1642 1643 1644 1645 1646 -1647 -1648 1649 -1650
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0.92/0.97	v  1701 1702 1703 1704 1705 1706 -1707 1708 -1709 1710
0.92/0.97	v  1711 -1712 1713 -1714 1715 -1716 1717 -1718 -1719 -1720
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0.92/0.97	v  -1851 -1852 1853 1854 1855 -1856 1857 -1858 -1859 1860
0.92/0.97	v  -1861 1862 1863 -1864 1865 1866 -1867 1868 1869 -1870
0.92/0.97	v  1871 1872 1873 1874 1875 1876 -1877 1878 -1879 -1880
0.92/0.97	v  -1881 -1882 -1883 1884 1885 -1886 -1887 -1888 1889 -1890
0.92/0.97	v  1891 -1892 -1893 -1894 1895 1896 1897 1898 1899 -1900
0.92/0.97	v  -1901 -1902 1903 -1904 -1905 -1906 1907 1908 1909 -1910
0.92/0.97	v  -1911 1912 1913 -1914 1915 1916 -1917 1918 -1919 -1920
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0.92/0.97	v  2011 2012 -2013 2014 -2015 -2016 -2017 -2018 -2019 -2020
0.92/0.97	v  2021 -2022 -2023 -2024 -2025 -2026 2027 -2028 2029 2030
0.92/0.97	v  -2031 -2032 -2033 -2034 -2035 0

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/node77/watcher-311515-1172571283 -o ROOT/results/node77/solver-311515-1172571283 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/311515-1172571283/sapsrt /tmp/evaluation/311515-1172571283/instance-311515-1172571283.cnf 96302342 

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: 0.78 0.95 0.98 3/67 9184
/proc/meminfo: memFree=1827952/2055892 swapFree=4086192/4096564
[pid=9184] ppid=9182 vsize=5160 CPUtime=0
/proc/9184/stat : 9184 (sapsrt) R 9182 9184 9121 0 -1 4194304 157 0 0 0 0 0 0 0 20 0 1 0 51995878 5283840 143 18446744073709551615 134512640 135167692 4294956704 18446744073709551615 134692457 0 0 4096 0 0 0 0 17 1 0 0
/proc/9184/statm: 1290 143 78 159 0 1129 0

[startup+0.106757 s]
/proc/loadavg: 0.78 0.95 0.98 3/67 9184
/proc/meminfo: memFree=1827952/2055892 swapFree=4086192/4096564
[pid=9184] ppid=9182 vsize=5156 CPUtime=0.1
/proc/9184/stat : 9184 (sapsrt) R 9182 9184 9121 0 -1 4194304 259 0 0 0 10 0 0 0 21 0 1 0 51995878 5279744 244 18446744073709551615 134512640 135167692 4294956704 18446744073709551615 134550734 0 0 4096 0 0 0 0 17 1 0 0
/proc/9184/statm: 1289 244 83 159 0 1128 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 5156

[startup+0.514804 s]
/proc/loadavg: 0.78 0.95 0.98 3/67 9184
/proc/meminfo: memFree=1827952/2055892 swapFree=4086192/4096564
[pid=9184] ppid=9182 vsize=5156 CPUtime=0.51
/proc/9184/stat : 9184 (sapsrt) R 9182 9184 9121 0 -1 4194304 259 0 0 0 51 0 0 0 25 0 1 0 51995878 5279744 244 18446744073709551615 134512640 135167692 4294956704 18446744073709551615 134550605 0 0 4096 0 0 0 0 17 1 0 0
/proc/9184/statm: 1289 244 83 159 0 1128 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 5156

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

[startup+0.82084 s]
/proc/loadavg: 0.78 0.95 0.98 3/67 9184
/proc/meminfo: memFree=1827952/2055892 swapFree=4086192/4096564
[pid=9184] ppid=9182 vsize=5156 CPUtime=0.81
/proc/9184/stat : 9184 (sapsrt) R 9182 9184 9121 0 -1 4194304 259 0 0 0 81 0 0 0 25 0 1 0 51995878 5279744 244 18446744073709551615 134512640 135167692 4294956704 18446744073709551615 134550734 0 0 4096 0 0 0 0 17 1 0 0
/proc/9184/statm: 1289 244 83 159 0 1128 0
Current children cumulated CPU time (s) 0.81
Current children cumulated vsize (KiB) 5156

[startup+0.922853 s]
/proc/loadavg: 0.78 0.95 0.98 3/67 9184
/proc/meminfo: memFree=1827952/2055892 swapFree=4086192/4096564
[pid=9184] ppid=9182 vsize=5156 CPUtime=0.92
/proc/9184/stat : 9184 (sapsrt) R 9182 9184 9121 0 -1 4194304 259 0 0 0 92 0 0 0 25 0 1 0 51995878 5279744 244 18446744073709551615 134512640 135167692 4294956704 18446744073709551615 134550703 0 0 4096 0 0 0 0 17 1 0 0
/proc/9184/statm: 1289 244 83 159 0 1128 0
Current children cumulated CPU time (s) 0.92
Current children cumulated vsize (KiB) 5156

Child status: 10
Real time (s): 0.980704
CPU time (s): 0.977851
CPU user time (s): 0.977851
CPU system time (s): 0
CPU usage (%): 99.7091
Max. virtual memory (cumulated for all children) (KiB): 5156

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.977851
system time used= 0
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 274
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= 1

runsolver used 0.004999 second user time and 0.004999 second system time

The end

Launcher Data (download as text)

Begin job on node77 on Tue Feb 27 10:14:43 UTC 2007

IDJOB= 311515
IDBENCH= 20316
IDSOLVER= 102
FILE ID= node77/311515-1172571283

PBS_JOBID= 3971912

Free space on /tmp= 66648 MiB

SOLVER NAME= sapsrt 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.8/v2035/unif2p-p0.8-v2035-c6328-S668297284-15-SAT.cnf
COMMAND LINE= /tmp/evaluation/311515-1172571283/sapsrt /tmp/evaluation/311515-1172571283/instance-311515-1172571283.cnf  96302342       
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node77/watcher-311515-1172571283 -o ROOT/results/node77/solver-311515-1172571283 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/311515-1172571283/sapsrt /tmp/evaluation/311515-1172571283/instance-311515-1172571283.cnf  96302342       

META MD5SUM SOLVER= a43f4f4c91c277b32a975fd145ded8eb
MD5SUM BENCH=  4d15e4ef1977463310683c8d04611f9d

RANDOM SEED= 96302342

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node77.alineos.net 2.6.9-34.ELsmp #1 SMP Thu Mar 9 06:23:23 GMT 2006 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		: 3000.239
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	: 6006.15
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		: 3000.239
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	: 5999.41
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055892 kB
MemFree:       1828360 kB
Buffers:         29992 kB
Cached:         152748 kB
SwapCached:       4056 kB
Active:          85712 kB
Inactive:       106972 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055892 kB
LowFree:       1828360 kB
SwapTotal:     4096564 kB
SwapFree:      4086192 kB
Dirty:            2480 kB
Writeback:           0 kB
Mapped:          15116 kB
Slab:            21304 kB
Committed_AS:   122104 kB
PageTables:       1428 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264388 kB
VmallocChunk: 536606243 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66648 MiB

End job on node77 on Tue Feb 27 10:14:44 UTC 2007