Trace number 312400

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
adaptg2wsat0 2007-02-08SAT 0.532918 0.535273

General information on the benchmark

Namerandom/2+p/p0.8/v1665/
unif2p-p0.8-v1665-c5178-S1939769766-11-SAT.cnf
MD5SUM6a3b3e57d22696582c0456812681e53c
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.060989
Satisfiable
(Un)Satisfiability was proved
Number of variables1664
Number of clauses5177
Sum of the clauses size14496
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 21035
Number of clauses of size 34142
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.51/0.53	c try 1 flip j 533409
0.51/0.53	c A solution is found
0.51/0.53	s SATISFIABLE
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0.51/0.53	v 0 
0.51/0.53	c Done (mycputime is 0.520 seconds)

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/node6/watcher-312400-1172588443 -o ROOT/results/node6/solver-312400-1172588443 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/312400-1172588443/adaptg2wsat0 /tmp/evaluation/312400-1172588443/instance-312400-1172588443.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: 0.00 0.00 0.12 3/83 18909
/proc/meminfo: memFree=1549776/2055924 swapFree=4192812/4192956
[pid=18909] ppid=18907 vsize=215024 CPUtime=0
/proc/18909/stat : 18909 (adaptg2wsat0) R 18907 18909 17329 0 -1 4194304 100 0 0 0 0 0 0 0 18 0 1 0 278801942 220184576 84 18446744073709551615 134512640 134930208 4294956688 18446744073709551615 134582935 0 0 4096 0 0 0 0 17 1 0 0
/proc/18909/statm: 53756 84 40 101 0 53262 0

[startup+0.107661 s]
/proc/loadavg: 0.00 0.00 0.12 3/83 18909
/proc/meminfo: memFree=1549776/2055924 swapFree=4192812/4192956
[pid=18909] ppid=18907 vsize=215416 CPUtime=0.1
/proc/18909/stat : 18909 (adaptg2wsat0) R 18907 18909 17329 0 -1 4194304 294 0 0 0 10 0 0 0 18 0 1 0 278801942 220585984 274 18446744073709551615 134512640 134930208 4294956688 18446744073709551615 134545911 0 0 4096 0 0 0 0 17 1 0 0
/proc/18909/statm: 53854 274 43 101 0 53360 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 215416

[startup+0.51574 s]
/proc/loadavg: 0.00 0.00 0.12 3/83 18909
/proc/meminfo: memFree=1549776/2055924 swapFree=4192812/4192956
[pid=18909] ppid=18907 vsize=215416 CPUtime=0.51
/proc/18909/stat : 18909 (adaptg2wsat0) R 18907 18909 17329 0 -1 4194304 294 0 0 0 51 0 0 0 22 0 1 0 278801942 220585984 274 18446744073709551615 134512640 134930208 4294956688 18446744073709551615 134547234 0 0 4096 0 0 0 0 17 1 0 0
/proc/18909/statm: 53854 274 43 101 0 53360 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 215416

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

[startup+0.51574 s]
/proc/loadavg: 0.00 0.00 0.12 3/83 18909
/proc/meminfo: memFree=1549776/2055924 swapFree=4192812/4192956
[pid=18909] ppid=18907 vsize=215416 CPUtime=0.51
/proc/18909/stat : 18909 (adaptg2wsat0) R 18907 18909 17329 0 -1 4194304 294 0 0 0 51 0 0 0 22 0 1 0 278801942 220585984 274 18446744073709551615 134512640 134930208 4294956688 18446744073709551615 134547234 0 0 4096 0 0 0 0 17 1 0 0
/proc/18909/statm: 53854 274 43 101 0 53360 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 215416

Child status: 10
Real time (s): 0.535273
CPU time (s): 0.532918
CPU user time (s): 0.530919
CPU system time (s): 0.001999
CPU usage (%): 99.5601
Max. virtual memory (cumulated for all children) (KiB): 215416

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.530919
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= 309
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= 8
involuntary context switches= 11

runsolver used 0.004999 second user time and 0.003999 second system time

The end

Launcher Data (download as text)

Begin job on node6 on Tue Feb 27 15:01:09 UTC 2007

IDJOB= 312400
IDBENCH= 20340
IDSOLVER= 126
FILE ID= node6/312400-1172588443

PBS_JOBID= 3971688

Free space on /tmp= 66550 MiB

SOLVER NAME= adaptg2wsat0 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.8/v1665/unif2p-p0.8-v1665-c5178-S1939769766-11-SAT.cnf
COMMAND LINE= /tmp/evaluation/312400-1172588443/adaptg2wsat0 /tmp/evaluation/312400-1172588443/instance-312400-1172588443.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node6/watcher-312400-1172588443 -o ROOT/results/node6/solver-312400-1172588443 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/312400-1172588443/adaptg2wsat0 /tmp/evaluation/312400-1172588443/instance-312400-1172588443.cnf            

META MD5SUM SOLVER= dc7cfffb7b5aa51d884144c196acd75c
MD5SUM BENCH=  6a3b3e57d22696582c0456812681e53c

RANDOM SEED= 465397377

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node6.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		: 3000.277
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		: 3000.277
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:      2055924 kB
MemFree:       1550184 kB
Buffers:         51024 kB
Cached:         324384 kB
SwapCached:         20 kB
Active:         283700 kB
Inactive:       149420 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055924 kB
LowFree:       1550184 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            6308 kB
Writeback:           0 kB
Mapped:          77052 kB
Slab:            57760 kB
Committed_AS:   934404 kB
PageTables:       1992 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= 66550 MiB

End job on node6 on Tue Feb 27 15:01:16 UTC 2007