Trace number 1532572

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 0.084986 0.085439

General information on the benchmark

NameRANDOM/LARGE/3SAT/UNKNOWN/2000/
unif-k3-r4.2-v2000-c8400-S520696524-059.cnf
MD5SUM3606a223e44ca7ebc5d996a3ddbfb35d
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.084986
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

0.02/0.08	c 0 clauses are redundant and removed
0.02/0.08	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.02/0.08	c 0 vars are fixed and 0 clauses are removed after lookahead
0.02/0.08	c initial seed is 1762279157
0.02/0.08	c try 1 flip j 27008 walk 22300 seed 983205807
0.02/0.08	c A solution is found
0.02/0.08	s SATISFIABLE
0.02/0.08	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 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1831 -1832 -1833 1834 1835 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 
0.02/0.08	v 0 
0.02/0.08	c Done (mycputime is 0.050 seconds)

Verifier Data

OK

Watcher Data

runsolver version 3.2.9 (svn:489) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1532572-1238388222/watcher-1532572-1238388222 -o /tmp/evaluation-result-1532572-1238388222/solver-1532572-1238388222 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/adaptg2wsat2009 HOME/instance-1532572-1238388222.cnf 1762279157 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1800 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: 1.76 1.82 1.54 3/64 32439
/proc/meminfo: memFree=1489608/2055920 swapFree=4175692/4192956
[pid=32439] ppid=32437 vsize=415800 CPUtime=0
/proc/32439/stat : 32439 (adaptg2wsat2009) R 32437 32439 32005 0 -1 4194304 109 0 0 0 0 0 0 0 18 0 1 0 1111487447 425779200 93 1992294400 134512640 135106963 4294956192 18446744073709551615 134591270 0 0 4096 0 0 0 0 17 1 0 0
/proc/32439/statm: 103950 93 49 145 0 102826 0

[startup+0.023057 s]
/proc/loadavg: 1.76 1.82 1.54 3/64 32439
/proc/meminfo: memFree=1489608/2055920 swapFree=4175692/4192956
[pid=32439] ppid=32437 vsize=416456 CPUtime=0.02
/proc/32439/stat : 32439 (adaptg2wsat2009) R 32437 32439 32005 0 -1 4194304 305 0 0 0 2 0 0 0 18 0 1 0 1111487447 426450944 288 1992294400 134512640 135106963 4294956192 18446744073709551615 134523257 0 0 4096 0 0 0 0 17 1 0 0
/proc/32439/statm: 104114 288 50 145 0 102990 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 416456

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

[startup+0.023057 s]
/proc/loadavg: 1.76 1.82 1.54 3/64 32439
/proc/meminfo: memFree=1489608/2055920 swapFree=4175692/4192956
[pid=32439] ppid=32437 vsize=416456 CPUtime=0.02
/proc/32439/stat : 32439 (adaptg2wsat2009) R 32437 32439 32005 0 -1 4194304 305 0 0 0 2 0 0 0 18 0 1 0 1111487447 426450944 288 1992294400 134512640 135106963 4294956192 18446744073709551615 134523257 0 0 4096 0 0 0 0 17 1 0 0
/proc/32439/statm: 104114 288 50 145 0 102990 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 416456

Child status: 10
Real time (s): 0.085439
CPU time (s): 0.084986
CPU user time (s): 0.078987
CPU system time (s): 0.005999
CPU usage (%): 99.4697
Max. virtual memory (cumulated for all children) (KiB): 416456

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.078987
system time used= 0.005999
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= 0

runsolver used 0.002999 second user time and 0.006998 second system time

The end

Launcher Data

Begin job on node30 at 2009-03-30 06:43:42
IDJOB=1532572
IDBENCH=70288
IDSOLVER=542
FILE ID=node30/1532572-1238388222
PBS_JOBID= 9061348
Free space on /tmp= 66360 MiB

SOLVER NAME= adaptg2wsat2009 2009-03-23
BENCH NAME= SAT09/RANDOM/LARGE/3SAT/UNKNOWN/2000/unif-k3-r4.2-v2000-c8400-S520696524-059.cnf
COMMAND LINE= HOME/adaptg2wsat2009 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1532572-1238388222/watcher-1532572-1238388222 -o /tmp/evaluation-result-1532572-1238388222/solver-1532572-1238388222 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/adaptg2wsat2009 HOME/instance-1532572-1238388222.cnf 1762279157

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 3606a223e44ca7ebc5d996a3ddbfb35d
RANDOM SEED=1762279157

node30.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		: 3000.260
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	: 5931.00
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		: 3000.260
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:       1490024 kB
Buffers:         70732 kB
Cached:         410428 kB
SwapCached:      11092 kB
Active:          78928 kB
Inactive:       415280 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1490024 kB
SwapTotal:     4192956 kB
SwapFree:      4175692 kB
Dirty:            4904 kB
Writeback:           0 kB
Mapped:          18692 kB
Slab:            57636 kB
Committed_AS:  3035980 kB
PageTables:       1368 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= 66352 MiB
End job on node30 at 2009-03-30 06:43:43