Trace number 292257

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
KCNFS 2004UNSAT 7.33288 7.33918

General information on the benchmark

Namerandom/OnTreshold/5SAT/v70/
unif-k5-r21.3-v70-c1491-S1402143852-01.UNSAT.shuffled.cnf
MD5SUM0748b6663894d676be78ac8cb4ea38d8
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark6.47602
Satisfiable
(Un)Satisfiability was proved
Number of variables70
Number of clauses1491
Sum of the clauses size7455
Maximum clause length5
Minimum clause length5
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 51491
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.00	
0.00/0.00	c Computed by /tmp/evaluation/292257-1171751193/kcnfs-2004   V. 03/02/12
0.00/0.00	c Input file : '/tmp/evaluation/292257-1171751193/instance-292257-1171751193.cnf'
7.26/7.33	c [70 variables, 1491 clauses, ratio 21.30, mean occ 53, 5-SAT]
7.26/7.33	s UNSATISFIABLE
7.26/7.33	c Computation time    : 7.330 seconds
7.26/7.33	c Execution time      : 7.330 seconds
7.26/7.33	c Size of search tree : 33469 nodes
7.26/7.33

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node75/watcher-292257-1171751193 -o ROOT/results/node75/solver-292257-1171751193 -C 1200 -M 1800 --output-limit 1,15 --use-pty /tmp/evaluation/292257-1171751193/kcnfs-2004 /tmp/evaluation/292257-1171751193/instance-292257-1171751193.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
Using a pseudo terminal to collect output from the solver
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.46 1.10 1.03 2/64 9746
/proc/meminfo: memFree=835312/2055920 swapFree=4183176/4192956
[pid=9746] ppid=9744 vsize=15960 CPUtime=0
/proc/9746/stat : 9746 (kcnfs-2004) R 9744 9746 8673 0 -1 0 79 0 0 0 0 0 0 0 19 0 1 0 195085175 16343040 59 18446744073709551615 134512640 134953336 4294956624 18446744073709551615 134614467 0 0 4096 0 0 0 0 17 0 0 0
/proc/9746/statm: 3990 59 38 107 0 3879 0

[startup+0.106392 s]
/proc/loadavg: 1.46 1.10 1.03 2/64 9746
/proc/meminfo: memFree=835312/2055920 swapFree=4183176/4192956
[pid=9746] ppid=9744 vsize=16644 CPUtime=0.1
/proc/9746/stat : 9746 (kcnfs-2004) R 9744 9746 8673 0 -1 0 342 0 0 0 10 0 0 0 20 0 1 0 195085175 17043456 321 18446744073709551615 134512640 134953336 4294956624 18446744073709551615 134531045 0 0 4096 0 0 0 0 17 0 0 0
/proc/9746/statm: 4161 321 60 107 0 4050 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 16644

[startup+0.514438 s]
/proc/loadavg: 1.46 1.10 1.03 2/64 9746
/proc/meminfo: memFree=835312/2055920 swapFree=4183176/4192956
[pid=9746] ppid=9744 vsize=16644 CPUtime=0.51
/proc/9746/stat : 9746 (kcnfs-2004) R 9744 9746 8673 0 -1 0 343 0 0 0 51 0 0 0 24 0 1 0 195085175 17043456 322 18446744073709551615 134512640 134953336 4294956624 18446744073709551615 134529326 0 0 4096 0 0 0 0 17 0 0 0
/proc/9746/statm: 4161 322 60 107 0 4050 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 16644

[startup+1.33453 s]
/proc/loadavg: 1.42 1.09 1.03 2/65 9747
/proc/meminfo: memFree=834152/2055920 swapFree=4183176/4192956
[pid=9746] ppid=9744 vsize=16644 CPUtime=1.33
/proc/9746/stat : 9746 (kcnfs-2004) R 9744 9746 8673 0 -1 0 343 0 0 0 133 0 0 0 25 0 1 0 195085175 17043456 322 18446744073709551615 134512640 134953336 4294956624 18446744073709551615 134528718 0 0 4096 0 0 0 0 17 0 0 0
/proc/9746/statm: 4161 322 60 107 0 4050 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 16644

[startup+2.97073 s]
/proc/loadavg: 1.42 1.09 1.03 2/65 9747
/proc/meminfo: memFree=834024/2055920 swapFree=4183176/4192956
[pid=9746] ppid=9744 vsize=16644 CPUtime=2.96
/proc/9746/stat : 9746 (kcnfs-2004) R 9744 9746 8673 0 -1 0 343 0 0 0 296 0 0 0 25 0 1 0 195085175 17043456 322 18446744073709551615 134512640 134953336 4294956624 18446744073709551615 134532729 0 0 4096 0 0 0 0 17 0 0 0
/proc/9746/statm: 4161 322 60 107 0 4050 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 16644

[startup+6.25212 s]
/proc/loadavg: 1.42 1.09 1.03 2/65 9747
/proc/meminfo: memFree=833960/2055920 swapFree=4183176/4192956
[pid=9746] ppid=9744 vsize=16644 CPUtime=6.24
/proc/9746/stat : 9746 (kcnfs-2004) R 9744 9746 8673 0 -1 0 344 0 0 0 624 0 0 0 25 0 1 0 195085175 17043456 323 18446744073709551615 134512640 134953336 4294956624 18446744073709551615 134528267 0 0 4096 0 0 0 0 17 0 0 0
/proc/9746/statm: 4161 323 60 107 0 4050 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 16644

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

[startup+6.55815 s]
/proc/loadavg: 1.42 1.09 1.03 2/65 9747
/proc/meminfo: memFree=833960/2055920 swapFree=4183176/4192956
[pid=9746] ppid=9744 vsize=16644 CPUtime=6.55
/proc/9746/stat : 9746 (kcnfs-2004) R 9744 9746 8673 0 -1 0 344 0 0 0 655 0 0 0 25 0 1 0 195085175 17043456 323 18446744073709551615 134512640 134953336 4294956624 18446744073709551615 134528376 0 0 4096 0 0 0 0 17 0 0 0
/proc/9746/statm: 4161 323 60 107 0 4050 0
Current children cumulated CPU time (s) 6.55
Current children cumulated vsize (KiB) 16644

[startup+6.9692 s]
/proc/loadavg: 1.39 1.09 1.03 2/65 9747
/proc/meminfo: memFree=833960/2055920 swapFree=4183176/4192956
[pid=9746] ppid=9744 vsize=16644 CPUtime=6.96
/proc/9746/stat : 9746 (kcnfs-2004) R 9744 9746 8673 0 -1 0 344 0 0 0 696 0 0 0 25 0 1 0 195085175 17043456 323 18446744073709551615 134512640 134953336 4294956624 18446744073709551615 134528492 0 0 4096 0 0 0 0 17 0 0 0
/proc/9746/statm: 4161 323 60 107 0 4050 0
Current children cumulated CPU time (s) 6.96
Current children cumulated vsize (KiB) 16644

[startup+7.17323 s]
/proc/loadavg: 1.39 1.09 1.03 2/65 9747
/proc/meminfo: memFree=833960/2055920 swapFree=4183176/4192956
[pid=9746] ppid=9744 vsize=16644 CPUtime=7.16
/proc/9746/stat : 9746 (kcnfs-2004) R 9744 9746 8673 0 -1 0 344 0 0 0 716 0 0 0 25 0 1 0 195085175 17043456 323 18446744073709551615 134512640 134953336 4294956624 18446744073709551615 134532491 0 0 4096 0 0 0 0 17 0 0 0
/proc/9746/statm: 4161 323 60 107 0 4050 0
Current children cumulated CPU time (s) 7.16
Current children cumulated vsize (KiB) 16644

[startup+7.27524 s]
/proc/loadavg: 1.39 1.09 1.03 2/65 9747
/proc/meminfo: memFree=833960/2055920 swapFree=4183176/4192956
[pid=9746] ppid=9744 vsize=16644 CPUtime=7.26
/proc/9746/stat : 9746 (kcnfs-2004) R 9744 9746 8673 0 -1 0 344 0 0 0 726 0 0 0 25 0 1 0 195085175 17043456 323 18446744073709551615 134512640 134953336 4294956624 18446744073709551615 134528282 0 0 4096 0 0 0 0 17 0 0 0
/proc/9746/statm: 4161 323 60 107 0 4050 0
Current children cumulated CPU time (s) 7.26
Current children cumulated vsize (KiB) 16644

Child status: 20
Real time (s): 7.33918
CPU time (s): 7.33288
CPU user time (s): 7.32888
CPU system time (s): 0.003999
CPU usage (%): 99.9142
Max. virtual memory (cumulated for all children) (KiB): 16644

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 7.32888
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 344
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= 31

runsolver used 0.008998 second user time and 0.019996 second system time

The end

Launcher Data (download as text)

Begin job on node75 on Sat Feb 17 22:26:33 UTC 2007

IDJOB= 292257
IDBENCH= 19835
IDSOLVER= 114
FILE ID= node75/292257-1171751193

PBS_JOBID= 3839451

Free space on /tmp= 66562 MiB

SOLVER NAME= KCNFS 2004
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/5SAT/v70/unif-k5-r21.3-v70-c1491-S1402143852-01.UNSAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/292257-1171751193/kcnfs-2004 /tmp/evaluation/292257-1171751193/instance-292257-1171751193.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node75/watcher-292257-1171751193 -o ROOT/results/node75/solver-292257-1171751193 -C 1200 -M 1800 --output-limit 1,15 --use-pty /tmp/evaluation/292257-1171751193/kcnfs-2004 /tmp/evaluation/292257-1171751193/instance-292257-1171751193.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  0748b6663894d676be78ac8cb4ea38d8

RANDOM SEED= 108014392

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node75.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		: 3000.218
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		: 3000.218
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:        835656 kB
Buffers:         39432 kB
Cached:        1084928 kB
SwapCached:       3828 kB
Active:         717516 kB
Inactive:       416572 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        835656 kB
SwapTotal:     4192956 kB
SwapFree:      4183176 kB
Dirty:            3316 kB
Writeback:           0 kB
Mapped:          15632 kB
Slab:            72068 kB
Committed_AS:   565952 kB
PageTables:       1432 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= 66562 MiB

End job on node75 on Sat Feb 17 22:26:41 UTC 2007