Trace number 1553822

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 52.871 52.8881

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 benchmark6.93994
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 

52.78/52.88	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-1553822-1238718988/watcher-1553822-1238718988 -o /tmp/evaluation-result-1553822-1238718988/solver-1553822-1238718988 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/picosat HOME/instance-1553822-1238718988.cnf 

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: 0.99 1.00 0.99 3/64 31936
/proc/meminfo: memFree=1216376/2055920 swapFree=4179868/4192956
[pid=31936] ppid=31934 vsize=568 CPUtime=0
/proc/31936/stat : 31936 (picosat) R 31934 31936 31686 0 -1 4194304 72 0 0 0 0 0 0 0 18 0 1 0 748791238 581632 58 1992294400 134512640 134931368 4294956240 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/31936/statm: 142 58 40 102 0 37 0

[startup+0.00914603 s]
/proc/loadavg: 0.99 1.00 0.99 3/64 31936
/proc/meminfo: memFree=1216376/2055920 swapFree=4179868/4192956
[pid=31936] ppid=31934 vsize=568 CPUtime=0
/proc/31936/stat : 31936 (picosat) R 31934 31936 31686 0 -1 4194304 75 0 0 0 0 0 0 0 18 0 1 0 748791238 581632 61 1992294400 134512640 134931368 4294956240 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/31936/statm: 142 61 40 102 0 37 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 568

[startup+0.10116 s]
/proc/loadavg: 0.99 1.00 0.99 3/64 31936
/proc/meminfo: memFree=1216376/2055920 swapFree=4179868/4192956
[pid=31936] ppid=31934 vsize=1356 CPUtime=0.09
/proc/31936/stat : 31936 (picosat) R 31934 31936 31686 0 -1 4194304 240 0 0 0 3 6 0 0 18 0 1 0 748791238 1388544 226 1992294400 134512640 134931368 4294956240 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/31936/statm: 339 226 40 102 0 234 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1356

[startup+0.301188 s]
/proc/loadavg: 0.99 1.00 0.99 3/64 31936
/proc/meminfo: memFree=1216376/2055920 swapFree=4179868/4192956
[pid=31936] ppid=31934 vsize=2484 CPUtime=0.29
/proc/31936/stat : 31936 (picosat) R 31934 31936 31686 0 -1 4194304 508 0 0 0 12 17 0 0 19 0 1 0 748791238 2543616 494 1992294400 134512640 134931368 4294956240 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/31936/statm: 621 494 40 102 0 516 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2484

[startup+0.701244 s]
/proc/loadavg: 0.99 1.00 0.99 3/64 31936
/proc/meminfo: memFree=1216376/2055920 swapFree=4179868/4192956
[pid=31936] ppid=31934 vsize=3076 CPUtime=0.69
/proc/31936/stat : 31936 (picosat) R 31934 31936 31686 0 -1 4194304 677 0 0 0 50 19 0 0 23 0 1 0 748791238 3149824 655 1992294400 134512640 134931368 4294956240 18446744073709551615 134525631 0 0 4096 0 0 0 0 17 1 0 0
/proc/31936/statm: 769 655 42 102 0 664 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3076

[startup+1.50136 s]
/proc/loadavg: 0.99 1.00 0.99 2/65 31937
/proc/meminfo: memFree=1213808/2055920 swapFree=4179868/4192956
[pid=31936] ppid=31934 vsize=3612 CPUtime=1.49
/proc/31936/stat : 31936 (picosat) R 31934 31936 31686 0 -1 4194304 821 0 0 0 130 19 0 0 25 0 1 0 748791238 3698688 797 1992294400 134512640 134931368 4294956240 18446744073709551615 134525619 0 0 4096 0 0 0 0 17 1 0 0
/proc/31936/statm: 903 797 48 102 0 798 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 3612

[startup+3.10158 s]
/proc/loadavg: 0.99 1.00 0.99 2/65 31937
/proc/meminfo: memFree=1213104/2055920 swapFree=4179868/4192956
[pid=31936] ppid=31934 vsize=3732 CPUtime=3.09
/proc/31936/stat : 31936 (picosat) R 31934 31936 31686 0 -1 4194304 858 0 0 0 289 20 0 0 25 0 1 0 748791238 3821568 834 1992294400 134512640 134931368 4294956240 18446744073709551615 134520135 0 0 4096 0 0 0 0 17 1 0 0
/proc/31936/statm: 933 834 48 102 0 828 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 3732

[startup+6.30104 s]
/proc/loadavg: 0.99 1.00 0.99 2/65 31937
/proc/meminfo: memFree=1212912/2055920 swapFree=4179868/4192956
[pid=31936] ppid=31934 vsize=3864 CPUtime=6.29
/proc/31936/stat : 31936 (picosat) R 31934 31936 31686 0 -1 4194304 897 0 0 0 609 20 0 0 25 0 1 0 748791238 3956736 873 1992294400 134512640 134931368 4294956240 18446744073709551615 134597664 0 0 4096 0 0 0 0 17 1 0 0
/proc/31936/statm: 966 873 48 102 0 861 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 3864

[startup+12.7029 s]
/proc/loadavg: 0.99 1.00 0.99 2/65 31937
/proc/meminfo: memFree=1212336/2055920 swapFree=4179868/4192956
[pid=31936] ppid=31934 vsize=4392 CPUtime=12.69
/proc/31936/stat : 31936 (picosat) R 31934 31936 31686 0 -1 4194304 1038 0 0 0 1249 20 0 0 25 0 1 0 748791238 4497408 1014 1992294400 134512640 134931368 4294956240 18446744073709551615 134522836 0 0 4096 0 0 0 0 17 1 0 0
/proc/31936/statm: 1098 1014 48 102 0 993 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 4392

[startup+25.5018 s]
/proc/loadavg: 0.99 1.00 0.99 2/65 31937
/proc/meminfo: memFree=1211888/2055920 swapFree=4179868/4192956
[pid=31936] ppid=31934 vsize=4884 CPUtime=25.48
/proc/31936/stat : 31936 (picosat) R 31934 31936 31686 0 -1 4194304 1139 0 0 0 2528 20 0 0 25 0 1 0 748791238 5001216 1115 1992294400 134512640 134931368 4294956240 18446744073709551615 134531142 0 0 4096 0 0 0 0 17 1 0 0
/proc/31936/statm: 1221 1115 48 102 0 1116 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 4884

[startup+51.1014 s]
/proc/loadavg: 0.99 1.00 0.99 2/65 31937
/proc/meminfo: memFree=1211312/2055920 swapFree=4179868/4192956
[pid=31936] ppid=31934 vsize=5400 CPUtime=51.07
/proc/31936/stat : 31936 (picosat) R 31934 31936 31686 0 -1 4194304 1277 0 0 0 5087 20 0 0 25 0 1 0 748791238 5529600 1253 1992294400 134512640 134931368 4294956240 18446744073709551615 134525820 0 0 4096 0 0 0 0 17 1 0 0
/proc/31936/statm: 1350 1253 48 102 0 1245 0
Current children cumulated CPU time (s) 51.07
Current children cumulated vsize (KiB) 5400

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

[startup+51.9015 s]
/proc/loadavg: 0.99 1.00 0.99 2/65 31937
/proc/meminfo: memFree=1211312/2055920 swapFree=4179868/4192956
[pid=31936] ppid=31934 vsize=5400 CPUtime=51.87
/proc/31936/stat : 31936 (picosat) R 31934 31936 31686 0 -1 4194304 1277 0 0 0 5167 20 0 0 25 0 1 0 748791238 5529600 1253 1992294400 134512640 134931368 4294956240 18446744073709551615 134525621 0 0 4096 0 0 0 0 17 1 0 0
/proc/31936/statm: 1350 1253 48 102 0 1245 0
Current children cumulated CPU time (s) 51.87
Current children cumulated vsize (KiB) 5400

[startup+52.3016 s]
/proc/loadavg: 0.99 1.00 0.99 2/65 31937
/proc/meminfo: memFree=1211312/2055920 swapFree=4179868/4192956
[pid=31936] ppid=31934 vsize=5400 CPUtime=52.27
/proc/31936/stat : 31936 (picosat) R 31934 31936 31686 0 -1 4194304 1277 0 0 0 5207 20 0 0 25 0 1 0 748791238 5529600 1253 1992294400 134512640 134931368 4294956240 18446744073709551615 134520025 0 0 4096 0 0 0 0 17 1 0 0
/proc/31936/statm: 1350 1253 48 102 0 1245 0
Current children cumulated CPU time (s) 52.27
Current children cumulated vsize (KiB) 5400

[startup+52.7016 s]
/proc/loadavg: 0.99 1.00 0.99 2/65 31937
/proc/meminfo: memFree=1211312/2055920 swapFree=4179868/4192956
[pid=31936] ppid=31934 vsize=5400 CPUtime=52.68
/proc/31936/stat : 31936 (picosat) R 31934 31936 31686 0 -1 4194304 1277 0 0 0 5248 20 0 0 25 0 1 0 748791238 5529600 1253 1992294400 134512640 134931368 4294956240 18446744073709551615 134529778 0 0 4096 0 0 0 0 17 1 0 0
/proc/31936/statm: 1350 1253 48 102 0 1245 0
Current children cumulated CPU time (s) 52.68
Current children cumulated vsize (KiB) 5400

[startup+52.8056 s]
/proc/loadavg: 0.99 1.00 0.99 2/65 31937
/proc/meminfo: memFree=1211312/2055920 swapFree=4179868/4192956
[pid=31936] ppid=31934 vsize=5400 CPUtime=52.78
/proc/31936/stat : 31936 (picosat) R 31934 31936 31686 0 -1 4194304 1277 0 0 0 5258 20 0 0 25 0 1 0 748791238 5529600 1253 1992294400 134512640 134931368 4294956240 18446744073709551615 134531142 0 0 4096 0 0 0 0 17 1 0 0
/proc/31936/statm: 1350 1253 48 102 0 1245 0
Current children cumulated CPU time (s) 52.78
Current children cumulated vsize (KiB) 5400

Child status: 20
Real time (s): 52.8881
CPU time (s): 52.871
CPU user time (s): 52.662
CPU system time (s): 0.208968
CPU usage (%): 99.9677
Max. virtual memory (cumulated for all children) (KiB): 5404

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 52.662
system time used= 0.208968
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= 118

runsolver used 0.051992 second user time and 0.139978 second system time

The end

Launcher Data 

Begin job on node49 at 2009-04-03 02:36:28
IDJOB=1553822
IDBENCH=70768
IDSOLVER=563
FILE ID=node49/1553822-1238718988
PBS_JOBID= 9085311
Free space on /tmp= 66384 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-1553822-1238718988/watcher-1553822-1238718988 -o /tmp/evaluation-result-1553822-1238718988/solver-1553822-1238718988 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/picosat HOME/instance-1553822-1238718988.cnf            

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

MD5SUM BENCH= 25c7914ccc82f6f574febbd03924feed
RANDOM SEED=791220744

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		: 3000.214
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		: 3000.214
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:       1216856 kB
Buffers:        114928 kB
Cached:         615536 kB
SwapCached:       6452 kB
Active:         265536 kB
Inactive:       473920 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1216856 kB
SwapTotal:     4192956 kB
SwapFree:      4179868 kB
Dirty:            1204 kB
Writeback:           0 kB
Mapped:          14616 kB
Slab:            85396 kB
Committed_AS:  2166164 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= 66384 MiB
End job on node49 at 2009-04-03 02:37:21