Trace number 311556

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 0.526919 0.529488

General information on the benchmark

Namerandom/2+p/p0.8/v2035/
unif2p-p0.8-v2035-c6328-S1137479270-03-SAT.cnf
MD5SUM3fec6aa272c98a2a7e0bf3cf53f83f02
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.38794
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)

0.51/0.52	c 
0.51/0.52	c UBCSAT version 1.1.0rr
0.51/0.52	c 
0.51/0.52	c http://www.satlib.org/ubcsat
0.51/0.52	c 
0.51/0.52	c ubcsat -h for help
0.51/0.52	c 
0.51/0.52	c  -runs 1 
0.51/0.52	c  -cutoff 4294967295 
0.51/0.52	c  -timeout 0.000000 
0.51/0.52	c  -gtimeout 0.000000 
0.51/0.52	c  -noimprove 0 
0.51/0.52	c  -target 0 
0.51/0.52	c  -wtarget 0.000000 
0.51/0.52	c  -seed 382269655 
0.51/0.52	c  -solve 0 
0.51/0.52	c  -find,-numsol 0 
0.51/0.52	c  -findunique 0 
0.51/0.52	c  -srestart 0 
0.51/0.52	c  -prestart 0.000000 
0.51/0.52	c  -drestart 0 
0.51/0.52	c 
0.51/0.52	c  -alpha 1.126000 
0.51/0.52	c  -rho 0.666000 
0.51/0.52	c  -ps 0.033000 
0.51/0.52	c  -wp 0.060000 
0.51/0.52	c  -sapsthresh -0.100000 
0.51/0.52	c 
0.51/0.52	s SATISFIABLE
0.51/0.52	v  -1 -2 -3 -4 -5 6 -7 -8 -9 -10
0.51/0.52	v  11 -12 -13 14 -15 -16 17 -18 -19 20
0.51/0.52	v  -21 22 -23 24 25 26 -27 -28 -29 -30
0.51/0.52	v  -31 32 -33 34 35 36 -37 -38 -39 40
0.51/0.52	v  41 42 43 44 45 46 47 48 49 50
0.51/0.52	v  -51 -52 53 -54 -55 56 57 -58 59 60
0.51/0.52	v  61 62 63 -64 65 66 67 -68 69 -70
0.51/0.52	v  -71 -72 -73 74 75 -76 -77 -78 79 -80
0.51/0.52	v  81 82 83 84 85 -86 87 88 89 -90
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0.51/0.52	v  901 902 -903 -904 905 906 -907 908 909 910
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0.51/0.52	v  921 922 923 924 -925 926 -927 -928 929 -930
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0.51/0.52	v  -941 -942 -943 -944 945 -946 -947 948 -949 -950
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0.51/0.52	v  971 972 -973 974 -975 976 -977 -978 -979 980
0.51/0.52	v  981 982 983 984 -985 -986 987 -988 -989 -990
0.51/0.52	v  -991 -992 993 -994 -995 -996 997 998 999 -1000
0.51/0.52	v  -1001 1002 -1003 1004 1005 -1006 1007 -1008 1009 -1010
0.51/0.52	v  1011 1012 -1013 -1014 -1015 -1016 -1017 -1018 1019 1020
0.51/0.52	v  1021 -1022 -1023 -1024 -1025 1026 -1027 -1028 1029 -1030
0.51/0.52	v  1031 -1032 -1033 -1034 -1035 1036 1037 -1038 -1039 -1040
0.51/0.52	v  -1041 -1042 1043 1044 1045 1046 -1047 -1048 -1049 1050
0.51/0.52	v  -1051 -1052 1053 -1054 -1055 1056 1057 1058 -1059 -1060
0.51/0.52	v  1061 1062 -1063 1064 1065 1066 -1067 1068 1069 1070
0.51/0.52	v  1071 1072 -1073 1074 -1075 -1076 1077 1078 -1079 1080
0.51/0.52	v  -1081 1082 -1083 1084 -1085 1086 1087 -1088 1089 1090
0.51/0.52	v  -1091 -1092 -1093 1094 1095 1096 -1097 -1098 1099 -1100
0.51/0.52	v  1101 -1102 1103 -1104 1105 -1106 1107 1108 1109 1110
0.51/0.52	v  -1111 -1112 1113 -1114 -1115 1116 -1117 -1118 -1119 -1120
0.51/0.52	v  1121 1122 -1123 -1124 1125 1126 -1127 -1128 -1129 1130
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0.51/0.52	v  -1141 -1142 -1143 1144 -1145 1146 1147 -1148 1149 1150
0.51/0.52	v  1151 -1152 1153 -1154 1155 -1156 1157 1158 1159 1160
0.51/0.52	v  1161 -1162 1163 1164 -1165 1166 -1167 1168 -1169 1170
0.51/0.52	v  1171 1172 -1173 1174 1175 1176 -1177 -1178 1179 1180
0.51/0.52	v  1181 -1182 -1183 1184 1185 -1186 -1187 1188 1189 1190
0.51/0.52	v  1191 1192 1193 1194 -1195 1196 1197 1198 1199 -1200
0.51/0.52	v  1201 1202 1203 -1204 -1205 1206 1207 1208 -1209 1210
0.51/0.52	v  -1211 -1212 -1213 1214 -1215 -1216 1217 -1218 1219 -1220
0.51/0.52	v  1221 -1222 1223 -1224 1225 -1226 -1227 1228 1229 1230
0.51/0.52	v  -1231 1232 -1233 -1234 -1235 -1236 1237 -1238 -1239 1240
0.51/0.52	v  -1241 -1242 -1243 -1244 -1245 -1246 -1247 -1248 -1249 1250
0.51/0.52	v  -1251 1252 1253 -1254 -1255 -1256 1257 1258 -1259 1260
0.51/0.52	v  -1261 -1262 1263 1264 -1265 1266 1267 1268 -1269 -1270
0.51/0.52	v  1271 -1272 -1273 -1274 1275 -1276 1277 1278 -1279 1280
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0.51/0.52	v  -1301 1302 -1303 1304 -1305 -1306 1307 -1308 1309 -1310
0.51/0.52	v  -1311 -1312 1313 1314 -1315 -1316 -1317 -1318 -1319 -1320
0.51/0.52	v  -1321 -1322 1323 -1324 1325 -1326 -1327 1328 -1329 1330
0.51/0.52	v  -1331 -1332 -1333 -1334 1335 -1336 1337 -1338 -1339 1340
0.51/0.52	v  1341 1342 1343 -1344 -1345 1346 1347 -1348 1349 -1350
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0.51/0.52	v  1371 -1372 -1373 -1374 1375 1376 -1377 1378 -1379 1380
0.51/0.52	v  -1381 1382 -1383 -1384 -1385 1386 1387 -1388 1389 1390
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0.51/0.52	v  1401 -1402 1403 1404 -1405 -1406 -1407 -1408 1409 -1410
0.51/0.52	v  1411 1412 1413 1414 1415 1416 1417 1418 -1419 -1420
0.51/0.52	v  1421 1422 1423 1424 1425 -1426 -1427 1428 1429 1430
0.51/0.52	v  1431 -1432 -1433 1434 1435 1436 1437 -1438 -1439 1440
0.51/0.52	v  1441 1442 1443 1444 1445 1446 -1447 -1448 1449 1450
0.51/0.52	v  -1451 1452 1453 1454 1455 1456 1457 1458 1459 1460
0.51/0.52	v  1461 -1462 1463 -1464 -1465 1466 1467 -1468 1469 1470
0.51/0.52	v  1471 1472 -1473 -1474 1475 1476 -1477 1478 1479 -1480
0.51/0.52	v  -1481 -1482 1483 -1484 1485 1486 1487 1488 -1489 -1490
0.51/0.52	v  -1491 1492 -1493 1494 -1495 1496 1497 -1498 1499 1500
0.51/0.52	v  1501 1502 -1503 -1504 1505 1506 1507 -1508 -1509 -1510
0.51/0.52	v  -1511 1512 -1513 1514 -1515 -1516 1517 1518 -1519 1520
0.51/0.52	v  1521 -1522 1523 -1524 1525 1526 1527 1528 1529 -1530
0.51/0.52	v  1531 1532 1533 1534 1535 1536 -1537 1538 -1539 1540
0.51/0.52	v  -1541 -1542 -1543 -1544 -1545 1546 1547 -1548 1549 1550
0.51/0.52	v  -1551 1552 1553 -1554 1555 -1556 -1557 -1558 1559 -1560
0.51/0.52	v  -1561 -1562 1563 1564 -1565 -1566 1567 -1568 1569 -1570
0.51/0.52	v  1571 -1572 -1573 1574 -1575 -1576 -1577 1578 -1579 1580
0.51/0.52	v  -1581 1582 1583 1584 -1585 -1586 -1587 -1588 -1589 -1590
0.51/0.52	v  1591 -1592 1593 1594 1595 1596 1597 1598 -1599 -1600
0.51/0.52	v  -1601 1602 1603 1604 -1605 -1606 1607 -1608 -1609 1610
0.51/0.52	v  -1611 -1612 -1613 1614 1615 -1616 1617 -1618 1619 -1620
0.51/0.52	v  1621 1622 1623 -1624 -1625 1626 -1627 -1628 1629 -1630
0.51/0.52	v  1631 1632 -1633 1634 -1635 1636 1637 1638 -1639 -1640
0.51/0.52	v  1641 -1642 -1643 -1644 1645 -1646 -1647 -1648 1649 1650
0.51/0.52	v  -1651 1652 -1653 1654 1655 -1656 1657 -1658 1659 -1660
0.51/0.52	v  -1661 1662 1663 -1664 1665 1666 1667 1668 -1669 1670
0.51/0.52	v  -1671 -1672 -1673 -1674 1675 -1676 -1677 1678 -1679 -1680
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0.51/0.52	v  1751 1752 -1753 1754 1755 1756 -1757 1758 1759 -1760
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0.51/0.52	v  -1791 1792 1793 -1794 1795 -1796 -1797 -1798 1799 1800
0.51/0.52	v  1801 -1802 1803 -1804 1805 1806 1807 1808 -1809 1810
0.51/0.52	v  1811 -1812 -1813 1814 1815 -1816 -1817 1818 1819 1820
0.51/0.52	v  1821 1822 -1823 1824 1825 1826 -1827 -1828 1829 -1830
0.51/0.52	v  1831 1832 1833 1834 -1835 -1836 1837 1838 1839 -1840
0.51/0.52	v  -1841 -1842 -1843 -1844 -1845 1846 -1847 -1848 1849 -1850
0.51/0.52	v  -1851 1852 -1853 -1854 1855 1856 -1857 -1858 -1859 1860
0.51/0.52	v  -1861 -1862 1863 -1864 1865 -1866 -1867 1868 -1869 -1870
0.51/0.52	v  1871 1872 1873 -1874 1875 1876 1877 1878 -1879 1880
0.51/0.52	v  1881 1882 -1883 1884 -1885 1886 1887 1888 -1889 -1890
0.51/0.52	v  1891 1892 1893 1894 -1895 -1896 1897 -1898 -1899 -1900
0.51/0.52	v  1901 -1902 1903 1904 -1905 1906 1907 -1908 1909 1910
0.51/0.52	v  1911 1912 1913 -1914 1915 -1916 -1917 1918 -1919 -1920
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0.51/0.52	v  1931 -1932 1933 -1934 1935 -1936 1937 1938 -1939 1940
0.51/0.52	v  1941 1942 -1943 1944 -1945 1946 -1947 1948 -1949 -1950
0.51/0.52	v  -1951 -1952 1953 1954 1955 -1956 1957 1958 1959 1960
0.51/0.52	v  -1961 1962 -1963 -1964 -1965 -1966 1967 1968 -1969 -1970
0.51/0.52	v  -1971 1972 1973 1974 1975 1976 -1977 -1978 1979 1980
0.51/0.52	v  -1981 1982 1983 1984 1985 -1986 -1987 1988 1989 1990
0.51/0.52	v  1991 -1992 -1993 1994 1995 1996 -1997 1998 -1999 -2000
0.51/0.52	v  -2001 -2002 -2003 -2004 2005 2006 2007 2008 -2009 -2010
0.51/0.52	v  2011 -2012 2013 2014 2015 -2016 2017 -2018 -2019 -2020
0.51/0.52	v  2021 -2022 -2023 2024 2025 2026 -2027 -2028 -2029 -2030
0.51/0.52	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/node14/watcher-311556-1172571633 -o ROOT/results/node14/solver-311556-1172571633 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/311556-1172571633/sapsrt /tmp/evaluation/311556-1172571633/instance-311556-1172571633.cnf 382269655 

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: 1.83 1.82 1.44 2/77 32723
/proc/meminfo: memFree=1575472/2055920 swapFree=4191880/4192956
[pid=32723] ppid=32721 vsize=5160 CPUtime=0
/proc/32723/stat : 32723 (sapsrt) R 32721 32723 31726 0 -1 4194304 151 0 0 0 0 0 0 0 20 0 1 0 277117756 5283840 136 18446744073709551615 134512640 135167692 4294956688 18446744073709551615 134799309 0 0 4096 0 0 0 0 17 1 0 0
/proc/32723/statm: 1290 136 78 159 0 1129 0

[startup+0.10724 s]
/proc/loadavg: 1.83 1.82 1.44 2/77 32723
/proc/meminfo: memFree=1575472/2055920 swapFree=4191880/4192956
[pid=32723] ppid=32721 vsize=5156 CPUtime=0.1
/proc/32723/stat : 32723 (sapsrt) R 32721 32723 31726 0 -1 4194304 260 0 0 0 10 0 0 0 21 0 1 0 277117756 5279744 244 18446744073709551615 134512640 135167692 4294956688 18446744073709551615 134550734 0 0 4096 0 0 0 0 17 1 0 0
/proc/32723/statm: 1289 244 83 159 0 1128 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 5156

[startup+0.515279 s]
/proc/loadavg: 1.83 1.82 1.44 2/77 32723
/proc/meminfo: memFree=1575472/2055920 swapFree=4191880/4192956
[pid=32723] ppid=32721 vsize=5156 CPUtime=0.51
/proc/32723/stat : 32723 (sapsrt) R 32721 32723 31726 0 -1 4194304 260 0 0 0 51 0 0 0 24 0 1 0 277117756 5279744 244 18446744073709551615 134512640 135167692 4294956688 18446744073709551615 134550734 0 0 4096 0 0 0 0 17 1 0 0
/proc/32723/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+0.515279 s]
/proc/loadavg: 1.83 1.82 1.44 2/77 32723
/proc/meminfo: memFree=1575472/2055920 swapFree=4191880/4192956
[pid=32723] ppid=32721 vsize=5156 CPUtime=0.51
/proc/32723/stat : 32723 (sapsrt) R 32721 32723 31726 0 -1 4194304 260 0 0 0 51 0 0 0 24 0 1 0 277117756 5279744 244 18446744073709551615 134512640 135167692 4294956688 18446744073709551615 134550734 0 0 4096 0 0 0 0 17 1 0 0
/proc/32723/statm: 1289 244 83 159 0 1128 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 5156

Child status: 10
Real time (s): 0.529488
CPU time (s): 0.526919
CPU user time (s): 0.52592
CPU system time (s): 0.000999
CPU usage (%): 99.5148
Max. virtual memory (cumulated for all children) (KiB): 5156

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.52592
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 275
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= 12
involuntary context switches= 3

runsolver used 0.003999 second user time and 0.006998 second system time

The end

Launcher Data (download as text)

Begin job on node14 on Tue Feb 27 10:20:33 UTC 2007

IDJOB= 311556
IDBENCH= 20317
IDSOLVER= 102
FILE ID= node14/311556-1172571633

PBS_JOBID= 3971671

Free space on /tmp= 66555 MiB

SOLVER NAME= sapsrt 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.8/v2035/unif2p-p0.8-v2035-c6328-S1137479270-03-SAT.cnf
COMMAND LINE= /tmp/evaluation/311556-1172571633/sapsrt /tmp/evaluation/311556-1172571633/instance-311556-1172571633.cnf  382269655       
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node14/watcher-311556-1172571633 -o ROOT/results/node14/solver-311556-1172571633 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/311556-1172571633/sapsrt /tmp/evaluation/311556-1172571633/instance-311556-1172571633.cnf  382269655       

META MD5SUM SOLVER= a43f4f4c91c277b32a975fd145ded8eb
MD5SUM BENCH=  3fec6aa272c98a2a7e0bf3cf53f83f02

RANDOM SEED= 382269655

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node14.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		: 3000.216
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		: 3000.216
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:       1575816 kB
Buffers:         50224 kB
Cached:         303308 kB
SwapCached:        408 kB
Active:         258364 kB
Inactive:       148744 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1575816 kB
SwapTotal:     4192956 kB
SwapFree:      4191880 kB
Dirty:            2340 kB
Writeback:           0 kB
Mapped:          69796 kB
Slab:            58532 kB
Committed_AS:   913952 kB
PageTables:       1736 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= 66555 MiB

End job on node14 on Tue Feb 27 10:20:34 UTC 2007