Trace number 1628662

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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
adaptg2wsat2009++ 2009-03-23SAT 1.9837 1.98468

General information on the benchmark

NameRANDOM/LARGE/3SAT/UNKNOWN/2000/
unif-k3-r4.2-v2000-c8400-S1494472801-040.cnf
MD5SUM68d6a1970f04966f07e2b02a79996009
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1.9837
Satisfiable
(Un)Satisfiability was proved
Number of variables2000
Number of clauses8400
Sum of the clauses size25200
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 38400
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data

1.90/1.98	c 0 clauses are redundant and removed
1.90/1.98	c 0 vars are fixed and 0 clauses are removed after unit propagation
1.90/1.98	c 0 vars are fixed and 0 clauses are removed after lookahead
1.90/1.98	c initial seed is 1629441492
1.90/1.98	c try 1 flip j 1365072 walk 1175831 seed 845608254
1.90/1.98	c A solution is found
1.90/1.98	s SATISFIABLE
1.90/1.98	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 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-1836 1837 1838 -1839 -1840 1841 -1842 1843 1844 -1845 1846 1847 1848 -1849 1850 1851 1852 -1853 1854 1855 1856 -1857 1858 1859 -1860 -1861 -1862 1863 -1864 -1865 1866 1867 1868 -1869 1870 1871 -1872 -1873 1874 1875 -1876 -1877 -1878 -1879 1880 1881 -1882 1883 1884 1885 -1886 1887 -1888 1889 1890 1891 -1892 1893 -1894 -1895 -1896 -1897 1898 -1899 1900 1901 1902 1903 1904 -1905 1906 -1907 -1908 -1909 1910 1911 1912 1913 1914 -1915 -1916 1917 -1918 -1919 -1920 -1921 -1922 -1923 1924 1925 -1926 -1927 -1928 -1929 1930 -1931 1932 1933 1934 -1935 -1936 1937 1938 1939 -1940 -1941 1942 1943 1944 -1945 1946 1947 1948 1949 1950 1951 1952 -1953 -1954 1955 -1956 -1957 1958 -1959 1960 -1961 1962 -1963 1964 -1965 1966 1967 1968 -1969 1970 -1971 -1972 -1973 1974 1975 -1976 1977 -1978 -1979 -1980 -1981 -1982 -1983 -1984 -1985 1986 1987 -1988 -1989 -1990 1991 -1992 -1993 1994 1995 1996 -1997 1998 -1999 2000 
1.90/1.98	v 0 
1.90/1.98	c Done (mycputime is 1.960 seconds)

Verifier Data

OK

Watcher Data

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1628662-1240019062/watcher-1628662-1240019062 -o /tmp/evaluation-result-1628662-1240019062/solver-1628662-1240019062 -C 5000 -W 6000 -M 1800 --output-limit 1,15 HOME/adaptg2wsat2009++ HOME/instance-1628662-1240019062.cnf 1629441492 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 6000 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: 0.99 0.97 0.91 3/64 20732
/proc/meminfo: memFree=1105216/2055920 swapFree=4192956/4192956
[pid=20732] ppid=20730 vsize=415800 CPUtime=0
/proc/20732/stat : 20732 (adaptg2wsat2009) R 20730 20732 20606 0 -1 4194304 109 0 0 0 0 0 0 0 18 0 1 0 29939858 425779200 93 1992294400 134512640 135107411 4294956208 18446744073709551615 134611854 0 0 4096 0 0 0 0 17 1 0 0
/proc/20732/statm: 103950 93 48 145 0 102826 0

[startup+0.0141129 s]
/proc/loadavg: 0.99 0.97 0.91 3/64 20732
/proc/meminfo: memFree=1105216/2055920 swapFree=4192956/4192956
[pid=20732] ppid=20730 vsize=416456 CPUtime=0.01
/proc/20732/stat : 20732 (adaptg2wsat2009) R 20730 20732 20606 0 -1 4194304 305 0 0 0 1 0 0 0 18 0 1 0 29939858 426450944 288 1992294400 134512640 135107411 4294956208 18446744073709551615 134591718 0 0 4096 0 0 0 0 17 1 0 0
/proc/20732/statm: 104114 288 48 145 0 102990 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 416456

[startup+0.101123 s]
/proc/loadavg: 0.99 0.97 0.91 3/64 20732
/proc/meminfo: memFree=1105216/2055920 swapFree=4192956/4192956
[pid=20732] ppid=20730 vsize=416724 CPUtime=0.09
/proc/20732/stat : 20732 (adaptg2wsat2009) R 20730 20732 20606 0 -1 4194304 457 0 0 0 9 0 0 0 18 0 1 0 29939858 426725376 440 1992294400 134512640 135107411 4294956208 18446744073709551615 134532227 0 0 4096 0 0 0 0 17 1 0 0
/proc/20732/statm: 104181 440 59 145 0 103057 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 416724

[startup+0.301145 s]
/proc/loadavg: 0.99 0.97 0.91 3/64 20732
/proc/meminfo: memFree=1105216/2055920 swapFree=4192956/4192956
[pid=20732] ppid=20730 vsize=416724 CPUtime=0.29
/proc/20732/stat : 20732 (adaptg2wsat2009) R 20730 20732 20606 0 -1 4194304 457 0 0 0 29 0 0 0 19 0 1 0 29939858 426725376 440 1992294400 134512640 135107411 4294956208 18446744073709551615 134548390 0 0 4096 0 0 0 0 17 1 0 0
/proc/20732/statm: 104181 440 59 145 0 103057 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 416724

[startup+0.701192 s]
/proc/loadavg: 0.99 0.97 0.91 3/64 20732
/proc/meminfo: memFree=1105216/2055920 swapFree=4192956/4192956
[pid=20732] ppid=20730 vsize=416724 CPUtime=0.69
/proc/20732/stat : 20732 (adaptg2wsat2009) R 20730 20732 20606 0 -1 4194304 457 0 0 0 69 0 0 0 22 0 1 0 29939858 426725376 440 1992294400 134512640 135107411 4294956208 18446744073709551615 134531935 0 0 4096 0 0 0 0 17 1 0 0
/proc/20732/statm: 104181 440 59 145 0 103057 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 416724

[startup+1.50229 s]
/proc/loadavg: 0.99 0.97 0.91 2/65 20733
/proc/meminfo: memFree=1103544/2055920 swapFree=4192956/4192956
[pid=20732] ppid=20730 vsize=416724 CPUtime=1.5
/proc/20732/stat : 20732 (adaptg2wsat2009) R 20730 20732 20606 0 -1 4194304 457 0 0 0 150 0 0 0 25 0 1 0 29939858 426725376 440 1992294400 134512640 135107411 4294956208 18446744073709551615 134532349 0 0 4096 0 0 0 0 17 1 0 0
/proc/20732/statm: 104181 440 59 145 0 103057 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 416724

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

[startup+1.90233 s]
/proc/loadavg: 0.99 0.97 0.91 2/65 20733
/proc/meminfo: memFree=1103544/2055920 swapFree=4192956/4192956
[pid=20732] ppid=20730 vsize=416724 CPUtime=1.9
/proc/20732/stat : 20732 (adaptg2wsat2009) R 20730 20732 20606 0 -1 4194304 457 0 0 0 190 0 0 0 25 0 1 0 29939858 426725376 440 1992294400 134512640 135107411 4294956208 18446744073709551615 134532352 0 0 4096 0 0 0 0 17 1 0 0
/proc/20732/statm: 104181 440 59 145 0 103057 0
Current children cumulated CPU time (s) 1.9
Current children cumulated vsize (KiB) 416724

Child status: 10
Real time (s): 1.98468
CPU time (s): 1.9837
CPU user time (s): 1.9817
CPU system time (s): 0.001999
CPU usage (%): 99.9505
Max. virtual memory (cumulated for all children) (KiB): 416724

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.9817
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 468
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= 2
involuntary context switches= 1

runsolver used 0.003999 second user time and 0.009998 second system time

The end

Launcher Data

Begin job on node11 at 2009-04-18 03:44:22
IDJOB=1628662
IDBENCH=70292
IDSOLVER=584
FILE ID=node11/1628662-1240019062
PBS_JOBID= 9158982
Free space on /tmp= 66272 MiB

SOLVER NAME= adaptg2wsat2009++ 2009-03-23
BENCH NAME= SAT09/RANDOM/LARGE/3SAT/UNKNOWN/2000/unif-k3-r4.2-v2000-c8400-S1494472801-040.cnf
COMMAND LINE= HOME/adaptg2wsat2009++ BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1628662-1240019062/watcher-1628662-1240019062 -o /tmp/evaluation-result-1628662-1240019062/solver-1628662-1240019062 -C 5000 -W 6000 -M 1800 --output-limit 1,15  HOME/adaptg2wsat2009++ HOME/instance-1628662-1240019062.cnf 1629441492

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 68d6a1970f04966f07e2b02a79996009
RANDOM SEED=1629441492

node11.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.214
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		: 3000.214
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:       1105696 kB
Buffers:         82228 kB
Cached:         790892 kB
SwapCached:          0 kB
Active:         239248 kB
Inactive:       647796 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1105696 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            4716 kB
Writeback:           0 kB
Mapped:          23636 kB
Slab:            49132 kB
Committed_AS:   140880 kB
PageTables:       1448 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= 66268 MiB
End job on node11 at 2009-04-18 03:44:24