Trace number 312059

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 2006UNSAT 182.128 182.269

General information on the benchmark

Namerandom/2+p/p0.8/v1665/
unif2p-p0.8-v1665-c5178-S883553387-12-UNSAT.cnf
MD5SUM2976853275fc06eec446787735cebe47
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark123.8
Satisfiable
(Un)Satisfiability was proved
Number of variables1665
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)

0.00/0.00	
0.00/0.00	c Computed by /tmp/evaluation/312059-1172581196/kcnfs-2006   V. 1.2
0.00/0.00	c reading file ... done
0.00/0.01	c Input file : '/tmp/evaluation/312059-1172581196/instance-312059-1172581196.cnf'
0.00/0.01	c [#vars: 1665, #clauses: 5177 , (2-3)-CNF]
0.00/0.01	c unit clauses propagate before processing (#clause: 5177)
182.01/182.26	c BSH-propagate until depth 1 (fix point: 6 updates) 
182.01/182.26	s UNSATISFIABLE
182.01/182.26	c Computation time     : 182.140 seconds
182.01/182.26	c Execution time       : 182.140 seconds
182.01/182.26	c Size of search tree  : 89796 nodes
182.01/182.26	c average speed        : 493.005 nodes/sec.
182.01/182.26

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/node3/watcher-312059-1172581196 -o ROOT/results/node3/solver-312059-1172581196 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/312059-1172581196/kcnfs-2006 /tmp/evaluation/312059-1172581196/instance-312059-1172581196.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: 0.92 0.98 0.99 3/77 31227
/proc/meminfo: memFree=808680/2055920 swapFree=4192812/4192956
[pid=31227] ppid=31225 vsize=180908 CPUtime=0
/proc/31227/stat : 31227 (kcnfs-2006) R 31225 31227 29878 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 278074449 185249792 112 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134810833 0 0 4096 0 0 0 0 17 1 0 0
/proc/31227/statm: 45227 113 47 158 0 45067 0

[startup+0.106694 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 31227
/proc/meminfo: memFree=808680/2055920 swapFree=4192812/4192956
[pid=31227] ppid=31225 vsize=181900 CPUtime=0.1
/proc/31227/stat : 31227 (kcnfs-2006) R 31225 31227 29878 0 -1 4194304 592 0 0 0 10 0 0 0 18 0 1 0 278074449 186265600 576 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134569045 0 0 4096 0 0 0 0 17 1 0 0
/proc/31227/statm: 45475 576 68 158 0 45315 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 181900

[startup+0.514728 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 31227
/proc/meminfo: memFree=808680/2055920 swapFree=4192812/4192956
[pid=31227] ppid=31225 vsize=181900 CPUtime=0.5
/proc/31227/stat : 31227 (kcnfs-2006) R 31225 31227 29878 0 -1 4194304 592 0 0 0 50 0 0 0 21 0 1 0 278074449 186265600 576 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134564260 0 0 4096 0 0 0 0 17 1 0 0
/proc/31227/statm: 45475 576 68 158 0 45315 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 181900

[startup+1.33479 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 31228
/proc/meminfo: memFree=806496/2055920 swapFree=4192812/4192956
[pid=31227] ppid=31225 vsize=181900 CPUtime=1.32
/proc/31227/stat : 31227 (kcnfs-2006) R 31225 31227 29878 0 -1 4194304 595 0 0 0 132 0 0 0 25 0 1 0 278074449 186265600 579 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134620401 0 0 4096 0 0 0 0 17 1 0 0
/proc/31227/statm: 45475 579 70 158 0 45315 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 181900

[startup+2.97093 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 31228
/proc/meminfo: memFree=806368/2055920 swapFree=4192812/4192956
[pid=31227] ppid=31225 vsize=181900 CPUtime=2.96
/proc/31227/stat : 31227 (kcnfs-2006) R 31225 31227 29878 0 -1 4194304 595 0 0 0 296 0 0 0 25 0 1 0 278074449 186265600 579 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134564626 0 0 4096 0 0 0 0 17 1 0 0
/proc/31227/statm: 45475 579 70 158 0 45315 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 181900

[startup+6.2542 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 31228
/proc/meminfo: memFree=806240/2055920 swapFree=4192812/4192956
[pid=31227] ppid=31225 vsize=181900 CPUtime=6.24
/proc/31227/stat : 31227 (kcnfs-2006) R 31225 31227 29878 0 -1 4194304 596 0 0 0 624 0 0 0 25 0 1 0 278074449 186265600 580 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134581952 0 0 4096 0 0 0 0 17 1 0 0
/proc/31227/statm: 45475 580 70 158 0 45315 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 181900

[startup+12.7097 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 31228
/proc/meminfo: memFree=806240/2055920 swapFree=4192812/4192956
[pid=31227] ppid=31225 vsize=181900 CPUtime=12.7
/proc/31227/stat : 31227 (kcnfs-2006) R 31225 31227 29878 0 -1 4194304 596 0 0 0 1270 0 0 0 25 0 1 0 278074449 186265600 580 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134595453 0 0 4096 0 0 0 0 17 1 0 0
/proc/31227/statm: 45475 580 70 158 0 45315 0
Current children cumulated CPU time (s) 12.7
Current children cumulated vsize (KiB) 181900

[startup+25.5098 s]
/proc/loadavg: 0.95 0.98 0.99 2/78 31228
/proc/meminfo: memFree=806240/2055920 swapFree=4192812/4192956
[pid=31227] ppid=31225 vsize=181900 CPUtime=25.49
/proc/31227/stat : 31227 (kcnfs-2006) R 31225 31227 29878 0 -1 4194304 596 0 0 0 2549 0 0 0 25 0 1 0 278074449 186265600 580 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134572369 0 0 4096 0 0 0 0 17 1 0 0
/proc/31227/statm: 45475 580 70 158 0 45315 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 181900

[startup+51.1209 s]
/proc/loadavg: 0.96 0.98 0.99 2/78 31228
/proc/meminfo: memFree=806240/2055920 swapFree=4192812/4192956
[pid=31227] ppid=31225 vsize=181900 CPUtime=51.1
/proc/31227/stat : 31227 (kcnfs-2006) R 31225 31227 29878 0 -1 4194304 596 0 0 0 5110 0 0 0 25 0 1 0 278074449 186265600 580 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134559501 0 0 4096 0 0 0 0 17 1 0 0
/proc/31227/statm: 45475 580 70 158 0 45315 0
Current children cumulated CPU time (s) 51.1
Current children cumulated vsize (KiB) 181900

[startup+102.349 s]
/proc/loadavg: 0.98 0.98 0.99 2/84 31336
/proc/meminfo: memFree=804848/2055920 swapFree=4192812/4192956
[pid=31227] ppid=31225 vsize=181900 CPUtime=102.27
/proc/31227/stat : 31227 (kcnfs-2006) R 31225 31227 29878 0 -1 4194304 596 0 0 0 10226 1 0 0 25 0 1 0 278074449 186265600 580 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134559186 0 0 4096 0 0 0 0 17 1 0 0
/proc/31227/statm: 45475 580 70 158 0 45315 0
Current children cumulated CPU time (s) 102.27
Current children cumulated vsize (KiB) 181900

[startup+162.399 s]
/proc/loadavg: 0.99 0.98 0.99 2/78 31426
/proc/meminfo: memFree=805984/2055920 swapFree=4192812/4192956
[pid=31227] ppid=31225 vsize=181900 CPUtime=162.25
/proc/31227/stat : 31227 (kcnfs-2006) R 31225 31227 29878 0 -1 4194304 596 0 0 0 16224 1 0 0 25 0 1 0 278074449 186265600 580 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134564592 0 0 4096 0 0 0 0 17 1 0 0
/proc/31227/statm: 45475 580 70 158 0 45315 0
Current children cumulated CPU time (s) 162.25
Current children cumulated vsize (KiB) 181900

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

[startup+170.493 s]
/proc/loadavg: 0.99 0.98 0.99 2/78 31426
/proc/meminfo: memFree=805984/2055920 swapFree=4192812/4192956
[pid=31227] ppid=31225 vsize=181900 CPUtime=170.34
/proc/31227/stat : 31227 (kcnfs-2006) R 31225 31227 29878 0 -1 4194304 596 0 0 0 17033 1 0 0 25 0 1 0 278074449 186265600 580 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134559186 0 0 4096 0 0 0 0 17 1 0 0
/proc/31227/statm: 45475 580 70 158 0 45315 0
Current children cumulated CPU time (s) 170.34
Current children cumulated vsize (KiB) 181900

[startup+177.049 s]
/proc/loadavg: 0.99 0.98 0.99 2/78 31426
/proc/meminfo: memFree=805984/2055920 swapFree=4192812/4192956
[pid=31227] ppid=31225 vsize=181900 CPUtime=176.9
/proc/31227/stat : 31227 (kcnfs-2006) R 31225 31227 29878 0 -1 4194304 596 0 0 0 17689 1 0 0 25 0 1 0 278074449 186265600 580 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134564847 0 0 4096 0 0 0 0 17 1 0 0
/proc/31227/statm: 45475 580 70 158 0 45315 0
Current children cumulated CPU time (s) 176.9
Current children cumulated vsize (KiB) 181900

[startup+180.322 s]
/proc/loadavg: 0.99 0.98 0.99 2/78 31426
/proc/meminfo: memFree=805984/2055920 swapFree=4192812/4192956
[pid=31227] ppid=31225 vsize=181900 CPUtime=180.17
/proc/31227/stat : 31227 (kcnfs-2006) R 31225 31227 29878 0 -1 4194304 596 0 0 0 18016 1 0 0 25 0 1 0 278074449 186265600 580 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134564179 0 0 4096 0 0 0 0 17 1 0 0
/proc/31227/statm: 45475 580 70 158 0 45315 0
Current children cumulated CPU time (s) 180.17
Current children cumulated vsize (KiB) 181900

[startup+181.142 s]
/proc/loadavg: 0.99 0.98 0.99 2/78 31426
/proc/meminfo: memFree=805984/2055920 swapFree=4192812/4192956
[pid=31227] ppid=31225 vsize=181900 CPUtime=180.99
/proc/31227/stat : 31227 (kcnfs-2006) R 31225 31227 29878 0 -1 4194304 596 0 0 0 18098 1 0 0 25 0 1 0 278074449 186265600 580 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134569045 0 0 4096 0 0 0 0 17 1 0 0
/proc/31227/statm: 45475 580 70 158 0 45315 0
Current children cumulated CPU time (s) 180.99
Current children cumulated vsize (KiB) 181900

[startup+181.962 s]
/proc/loadavg: 0.99 0.98 0.99 2/78 31426
/proc/meminfo: memFree=805984/2055920 swapFree=4192812/4192956
[pid=31227] ppid=31225 vsize=181900 CPUtime=181.81
/proc/31227/stat : 31227 (kcnfs-2006) R 31225 31227 29878 0 -1 4194304 596 0 0 0 18180 1 0 0 25 0 1 0 278074449 186265600 580 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134564626 0 0 4096 0 0 0 0 17 1 0 0
/proc/31227/statm: 45475 580 70 158 0 45315 0
Current children cumulated CPU time (s) 181.81
Current children cumulated vsize (KiB) 181900

[startup+182.166 s]
/proc/loadavg: 0.99 0.98 0.99 2/78 31426
/proc/meminfo: memFree=805984/2055920 swapFree=4192812/4192956
[pid=31227] ppid=31225 vsize=181900 CPUtime=182.01
/proc/31227/stat : 31227 (kcnfs-2006) R 31225 31227 29878 0 -1 4194304 596 0 0 0 18200 1 0 0 25 0 1 0 278074449 186265600 580 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134559186 0 0 4096 0 0 0 0 17 1 0 0
/proc/31227/statm: 45475 580 70 158 0 45315 0
Current children cumulated CPU time (s) 182.01
Current children cumulated vsize (KiB) 181900

[startup+182.268 s]
/proc/loadavg: 0.99 0.98 0.99 2/78 31426
/proc/meminfo: memFree=805984/2055920 swapFree=4192812/4192956
[pid=31227] ppid=31225 vsize=0 CPUtime=182.11
/proc/31227/stat : 31227 (kcnfs-2006) R 31225 31227 29878 0 -1 4194308 606 0 0 0 18210 1 0 0 25 0 1 0 278074449 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 0 0 0 0 17 1 0 0
/proc/31227/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 182.11
Current children cumulated vsize (KiB) 0

Child status: 20
Real time (s): 182.269
CPU time (s): 182.128
CPU user time (s): 182.108
CPU system time (s): 0.019996
CPU usage (%): 99.9228
Max. virtual memory (cumulated for all children) (KiB): 181900

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 182.108
system time used= 0.019996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 606
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= 7
involuntary context switches= 1463

runsolver used 0.199969 second user time and 0.434933 second system time

The end

Launcher Data (download as text)

Begin job on node3 on Tue Feb 27 12:59:56 UTC 2007

IDJOB= 312059
IDBENCH= 20331
IDSOLVER= 113
FILE ID= node3/312059-1172581196

PBS_JOBID= 3971680

Free space on /tmp= 66556 MiB

SOLVER NAME= KCNFS 2006
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.8/v1665/unif2p-p0.8-v1665-c5178-S883553387-12-UNSAT.cnf
COMMAND LINE= /tmp/evaluation/312059-1172581196/kcnfs-2006 /tmp/evaluation/312059-1172581196/instance-312059-1172581196.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node3/watcher-312059-1172581196 -o ROOT/results/node3/solver-312059-1172581196 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/312059-1172581196/kcnfs-2006 /tmp/evaluation/312059-1172581196/instance-312059-1172581196.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  2976853275fc06eec446787735cebe47

RANDOM SEED= 753008730

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node3.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		: 3000.241
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		: 3000.241
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:        809152 kB
Buffers:         69996 kB
Cached:        1039288 kB
SwapCached:          0 kB
Active:         463216 kB
Inactive:       701168 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        809152 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3248 kB
Writeback:           0 kB
Mapped:          74000 kB
Slab:            68072 kB
Committed_AS:  1207944 kB
PageTables:       1660 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= 66556 MiB

End job on node3 on Tue Feb 27 13:02:58 UTC 2007