Trace number 1825100

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
SAT07 reference solver: picosat 535UNSAT 52.571 52.5893

General information on the benchmark

NameAPPLICATIONS/bitverif/
minandmaxor/minandmaxor032.cnf
MD5SUM25c7914ccc82f6f574febbd03924feed
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark7.06992
Satisfiable
(Un)Satisfiability was proved
Number of variables16239
Number of clauses48332
Sum of the clauses size112772
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 232220
Number of clauses of size 316110
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

52.48/52.58	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1825100-1242478880/watcher-1825100-1242478880 -o /tmp/evaluation-result-1825100-1242478880/solver-1825100-1242478880 -C 10000 -W 12000 -M 1800 --output-limit 1,15 HOME/picosat HOME/instance-1825100-1242478880.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 10000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 10030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 12000 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: 0.87 0.97 0.99 3/64 19347
/proc/meminfo: memFree=1712944/2055920 swapFree=4155224/4192956
[pid=19347] ppid=19345 vsize=568 CPUtime=0
/proc/19347/stat : 19347 (picosat) R 19345 19347 19280 0 -1 4194304 72 0 0 0 0 0 0 0 18 0 1 0 275912381 581632 58 1992294400 134512640 134931368 4294956240 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/19347/statm: 142 58 40 102 0 37 0

[startup+0.0159469 s]
/proc/loadavg: 0.87 0.97 0.99 3/64 19347
/proc/meminfo: memFree=1712944/2055920 swapFree=4155224/4192956
[pid=19347] ppid=19345 vsize=568 CPUtime=0
/proc/19347/stat : 19347 (picosat) R 19345 19347 19280 0 -1 4194304 88 0 0 0 0 0 0 0 18 0 1 0 275912381 581632 74 1992294400 134512640 134931368 4294956240 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/19347/statm: 142 74 40 102 0 37 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 568

[startup+0.101958 s]
/proc/loadavg: 0.87 0.97 0.99 3/64 19347
/proc/meminfo: memFree=1712944/2055920 swapFree=4155224/4192956
[pid=19347] ppid=19345 vsize=1356 CPUtime=0.09
/proc/19347/stat : 19347 (picosat) R 19345 19347 19280 0 -1 4194304 240 0 0 0 4 5 0 0 18 0 1 0 275912381 1388544 226 1992294400 134512640 134931368 4294956240 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/19347/statm: 339 226 40 102 0 234 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1356

[startup+0.301986 s]
/proc/loadavg: 0.87 0.97 0.99 3/64 19347
/proc/meminfo: memFree=1712944/2055920 swapFree=4155224/4192956
[pid=19347] ppid=19345 vsize=2484 CPUtime=0.29
/proc/19347/stat : 19347 (picosat) R 19345 19347 19280 0 -1 4194304 513 0 0 0 12 17 0 0 19 0 1 0 275912381 2543616 499 1992294400 134512640 134931368 4294956240 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/19347/statm: 621 499 40 102 0 516 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2484

[startup+0.701042 s]
/proc/loadavg: 0.87 0.97 0.99 3/64 19347
/proc/meminfo: memFree=1712944/2055920 swapFree=4155224/4192956
[pid=19347] ppid=19345 vsize=3076 CPUtime=0.68
/proc/19347/stat : 19347 (picosat) R 19345 19347 19280 0 -1 4194304 677 0 0 0 49 19 0 0 22 0 1 0 275912381 3149824 655 1992294400 134512640 134931368 4294956240 18446744073709551615 134544814 0 0 4096 0 0 0 0 17 1 0 0
/proc/19347/statm: 769 655 42 102 0 664 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 3076

[startup+1.50216 s]
/proc/loadavg: 0.87 0.97 0.99 2/65 19348
/proc/meminfo: memFree=1710376/2055920 swapFree=4155224/4192956
[pid=19347] ppid=19345 vsize=3612 CPUtime=1.49
/proc/19347/stat : 19347 (picosat) R 19345 19347 19280 0 -1 4194304 821 0 0 0 130 19 0 0 25 0 1 0 275912381 3698688 797 1992294400 134512640 134931368 4294956240 18446744073709551615 134525619 0 0 4096 0 0 0 0 17 1 0 0
/proc/19347/statm: 903 797 48 102 0 798 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 3612

[startup+3.10138 s]
/proc/loadavg: 0.87 0.97 0.99 2/65 19348
/proc/meminfo: memFree=1709672/2055920 swapFree=4155224/4192956
[pid=19347] ppid=19345 vsize=3732 CPUtime=3.09
/proc/19347/stat : 19347 (picosat) R 19345 19347 19280 0 -1 4194304 858 0 0 0 289 20 0 0 25 0 1 0 275912381 3821568 834 1992294400 134512640 134931368 4294956240 18446744073709551615 134544907 0 0 4096 0 0 0 0 17 1 0 0
/proc/19347/statm: 933 834 48 102 0 828 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 3732

[startup+6.30184 s]
/proc/loadavg: 0.88 0.97 0.99 2/65 19348
/proc/meminfo: memFree=1709480/2055920 swapFree=4155224/4192956
[pid=19347] ppid=19345 vsize=3864 CPUtime=6.29
/proc/19347/stat : 19347 (picosat) R 19345 19347 19280 0 -1 4194304 902 0 0 0 609 20 0 0 25 0 1 0 275912381 3956736 878 1992294400 134512640 134931368 4294956240 18446744073709551615 134530201 0 0 4096 0 0 0 0 17 1 0 0
/proc/19347/statm: 966 878 48 102 0 861 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 3864

[startup+12.7018 s]
/proc/loadavg: 0.89 0.97 0.99 2/65 19348
/proc/meminfo: memFree=1708912/2055920 swapFree=4155224/4192956
[pid=19347] ppid=19345 vsize=4392 CPUtime=12.69
/proc/19347/stat : 19347 (picosat) R 19345 19347 19280 0 -1 4194304 1038 0 0 0 1249 20 0 0 25 0 1 0 275912381 4497408 1014 1992294400 134512640 134931368 4294956240 18446744073709551615 134525675 0 0 4096 0 0 0 0 17 1 0 0
/proc/19347/statm: 1098 1014 48 102 0 993 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 4392

[startup+25.5016 s]
/proc/loadavg: 0.91 0.97 0.99 2/65 19348
/proc/meminfo: memFree=1708464/2055920 swapFree=4155224/4192956
[pid=19347] ppid=19345 vsize=4884 CPUtime=25.48
/proc/19347/stat : 19347 (picosat) R 19345 19347 19280 0 -1 4194304 1139 0 0 0 2528 20 0 0 25 0 1 0 275912381 5001216 1115 1992294400 134512640 134931368 4294956240 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/19347/statm: 1221 1115 48 102 0 1116 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 4884

[startup+51.1012 s]
/proc/loadavg: 0.94 0.97 0.99 2/65 19348
/proc/meminfo: memFree=1708016/2055920 swapFree=4155224/4192956
[pid=19347] ppid=19345 vsize=5400 CPUtime=51.08
/proc/19347/stat : 19347 (picosat) R 19345 19347 19280 0 -1 4194304 1277 0 0 0 5088 20 0 0 25 0 1 0 275912381 5529600 1253 1992294400 134512640 134931368 4294956240 18446744073709551615 134520085 0 0 4096 0 0 0 0 17 1 0 0
/proc/19347/statm: 1350 1253 48 102 0 1245 0
Current children cumulated CPU time (s) 51.08
Current children cumulated vsize (KiB) 5400

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

[startup+51.9013 s]
/proc/loadavg: 0.94 0.97 0.99 2/65 19348
/proc/meminfo: memFree=1708016/2055920 swapFree=4155224/4192956
[pid=19347] ppid=19345 vsize=5400 CPUtime=51.88
/proc/19347/stat : 19347 (picosat) R 19345 19347 19280 0 -1 4194304 1277 0 0 0 5168 20 0 0 25 0 1 0 275912381 5529600 1253 1992294400 134512640 134931368 4294956240 18446744073709551615 134525807 0 0 4096 0 0 0 0 17 1 0 0
/proc/19347/statm: 1350 1253 48 102 0 1245 0
Current children cumulated CPU time (s) 51.88
Current children cumulated vsize (KiB) 5400

[startup+52.3014 s]
/proc/loadavg: 0.94 0.97 0.99 2/65 19348
/proc/meminfo: memFree=1708016/2055920 swapFree=4155224/4192956
[pid=19347] ppid=19345 vsize=5400 CPUtime=52.28
/proc/19347/stat : 19347 (picosat) R 19345 19347 19280 0 -1 4194304 1277 0 0 0 5208 20 0 0 25 0 1 0 275912381 5529600 1253 1992294400 134512640 134931368 4294956240 18446744073709551615 134525621 0 0 4096 0 0 0 0 17 1 0 0
/proc/19347/statm: 1350 1253 48 102 0 1245 0
Current children cumulated CPU time (s) 52.28
Current children cumulated vsize (KiB) 5400

[startup+52.5014 s]
/proc/loadavg: 0.94 0.97 0.99 2/65 19348
/proc/meminfo: memFree=1708016/2055920 swapFree=4155224/4192956
[pid=19347] ppid=19345 vsize=5400 CPUtime=52.48
/proc/19347/stat : 19347 (picosat) R 19345 19347 19280 0 -1 4194304 1277 0 0 0 5228 20 0 0 25 0 1 0 275912381 5529600 1253 1992294400 134512640 134931368 4294956240 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/19347/statm: 1350 1253 48 102 0 1245 0
Current children cumulated CPU time (s) 52.48
Current children cumulated vsize (KiB) 5400

Child status: 20
Real time (s): 52.5893
CPU time (s): 52.571
CPU user time (s): 52.367
CPU system time (s): 0.203968
CPU usage (%): 99.9653
Max. virtual memory (cumulated for all children) (KiB): 5404

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 52.367
system time used= 0.203968
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1281
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= 135

runsolver used 0.051992 second user time and 0.103984 second system time

The end

Launcher Data 

Begin job on node49 at 2009-05-16 15:01:20
IDJOB=1825100
IDBENCH=70768
IDSOLVER=666
FILE ID=node49/1825100-1242478880
PBS_JOBID= 9306841
Free space on /tmp= 65960 MiB

SOLVER NAME= SAT07 reference solver: picosat 535
BENCH NAME= SAT09/APPLICATIONS/bitverif/minandmaxor/minandmaxor032.cnf
COMMAND LINE= HOME/picosat BENCHNAME            
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1825100-1242478880/watcher-1825100-1242478880 -o /tmp/evaluation-result-1825100-1242478880/solver-1825100-1242478880 -C 10000 -W 12000 -M 1800 --output-limit 1,15  HOME/picosat HOME/instance-1825100-1242478880.cnf            

TIME LIMIT= 10000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 25c7914ccc82f6f574febbd03924feed
RANDOM SEED=171939179

node49.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		: 3000.241
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:       1713424 kB
Buffers:         34580 kB
Cached:         229720 kB
SwapCached:      31432 kB
Active:          73940 kB
Inactive:       224256 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1713424 kB
SwapTotal:     4192956 kB
SwapFree:      4155224 kB
Dirty:            1620 kB
Writeback:           0 kB
Mapped:          13676 kB
Slab:            30164 kB
Committed_AS:  1018552 kB
PageTables:       1384 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 65960 MiB
End job on node49 at 2009-05-16 15:02:13