Trace number 1825094

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 32.583 32.5945

General information on the benchmark

NameAPPLICATIONS/bitverif/
minxorminand/minxorminand032.cnf
MD5SUM49dda3faa6676166ee2ccb89f6cd8ca0
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark8.37073
Satisfiable
(Un)Satisfiability was proved
Number of variables10794
Number of clauses31997
Sum of the clauses size74657
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 221330
Number of clauses of size 310665
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

32.48/32.59	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-1825094-1242478552/watcher-1825094-1242478552 -o /tmp/evaluation-result-1825094-1242478552/solver-1825094-1242478552 -C 10000 -W 12000 -M 1800 --output-limit 1,15 HOME/picosat HOME/instance-1825094-1242478552.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: 1.00 1.00 1.07 3/65 11651
/proc/meminfo: memFree=906776/2055920 swapFree=4184600/4192956
[pid=11651] ppid=11649 vsize=568 CPUtime=0
/proc/11651/stat : 11651 (picosat) R 11649 11651 11354 0 -1 4194304 72 0 0 0 0 0 0 0 20 0 1 0 275884695 581632 58 1992294400 134512640 134931368 4294956240 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/11651/statm: 142 58 40 102 0 37 0

[startup+0.00919811 s]
/proc/loadavg: 1.00 1.00 1.07 3/65 11651
/proc/meminfo: memFree=906776/2055920 swapFree=4184600/4192956
[pid=11651] ppid=11649 vsize=568 CPUtime=0
/proc/11651/stat : 11651 (picosat) R 11649 11651 11354 0 -1 4194304 84 0 0 0 0 0 0 0 20 0 1 0 275884695 581632 70 1992294400 134512640 134931368 4294956240 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/11651/statm: 142 70 40 102 0 37 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 568

[startup+0.102215 s]
/proc/loadavg: 1.00 1.00 1.07 3/65 11651
/proc/meminfo: memFree=906776/2055920 swapFree=4184600/4192956
[pid=11651] ppid=11649 vsize=1360 CPUtime=0.09
/proc/11651/stat : 11651 (picosat) R 11649 11651 11354 0 -1 4194304 245 0 0 0 4 5 0 0 20 0 1 0 275884695 1392640 231 1992294400 134512640 134931368 4294956240 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/11651/statm: 340 231 40 102 0 235 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1360

[startup+0.301249 s]
/proc/loadavg: 1.00 1.00 1.07 3/65 11651
/proc/meminfo: memFree=906776/2055920 swapFree=4184600/4192956
[pid=11651] ppid=11649 vsize=2540 CPUtime=0.29
/proc/11651/stat : 11651 (picosat) R 11649 11651 11354 0 -1 4194304 504 0 0 0 17 12 0 0 22 0 1 0 275884695 2600960 483 1992294400 134512640 134931368 4294956240 18446744073709551615 134522836 0 0 4096 0 0 0 0 17 1 0 0
/proc/11651/statm: 635 483 42 102 0 530 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2540

[startup+0.702321 s]
/proc/loadavg: 1.00 1.00 1.07 3/65 11651
/proc/meminfo: memFree=906776/2055920 swapFree=4184600/4192956
[pid=11651] ppid=11649 vsize=2936 CPUtime=0.69
/proc/11651/stat : 11651 (picosat) R 11649 11651 11354 0 -1 4194304 577 0 0 0 57 12 0 0 25 0 1 0 275884695 3006464 556 1992294400 134512640 134931368 4294956240 18446744073709551615 134529700 0 0 4096 0 0 0 0 17 1 0 0
/proc/11651/statm: 734 556 42 102 0 629 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 2936

[startup+1.50146 s]
/proc/loadavg: 1.00 1.00 1.07 2/66 11652
/proc/meminfo: memFree=904336/2055920 swapFree=4184600/4192956
[pid=11651] ppid=11649 vsize=3472 CPUtime=1.49
/proc/11651/stat : 11651 (picosat) R 11649 11651 11354 0 -1 4194304 725 0 0 0 137 12 0 0 25 0 1 0 275884695 3555328 702 1992294400 134512640 134931368 4294956240 18446744073709551615 134525807 0 0 4096 0 0 0 0 17 1 0 0
/proc/11651/statm: 868 702 48 102 0 763 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 3472

[startup+3.10175 s]
/proc/loadavg: 1.00 1.00 1.07 2/66 11652
/proc/meminfo: memFree=903824/2055920 swapFree=4184600/4192956
[pid=11651] ppid=11649 vsize=3996 CPUtime=3.09
/proc/11651/stat : 11651 (picosat) R 11649 11651 11354 0 -1 4194304 876 0 0 0 297 12 0 0 25 0 1 0 275884695 4091904 853 1992294400 134512640 134931368 4294956240 18446744073709551615 134529914 0 0 4096 0 0 0 0 17 1 0 0
/proc/11651/statm: 999 853 48 102 0 894 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 3996

[startup+6.30132 s]
/proc/loadavg: 1.00 1.00 1.07 2/66 11652
/proc/meminfo: memFree=903248/2055920 swapFree=4184600/4192956
[pid=11651] ppid=11649 vsize=4252 CPUtime=6.28
/proc/11651/stat : 11651 (picosat) R 11649 11651 11354 0 -1 4194304 917 0 0 0 616 12 0 0 25 0 1 0 275884695 4354048 894 1992294400 134512640 134931368 4294956240 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/11651/statm: 1063 894 48 102 0 958 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 4252

[startup+12.7015 s]
/proc/loadavg: 1.00 1.00 1.07 2/66 11652
/proc/meminfo: memFree=902480/2055920 swapFree=4184600/4192956
[pid=11651] ppid=11649 vsize=4908 CPUtime=12.69
/proc/11651/stat : 11651 (picosat) R 11649 11651 11354 0 -1 4194304 1097 0 0 0 1256 13 0 0 25 0 1 0 275884695 5025792 1074 1992294400 134512640 134931368 4294956240 18446744073709551615 134525631 0 0 4096 0 0 0 0 17 1 0 0
/proc/11651/statm: 1227 1074 48 102 0 1122 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 4908

[startup+25.5017 s]
/proc/loadavg: 1.00 1.00 1.07 2/66 11652
/proc/meminfo: memFree=901720/2055920 swapFree=4184600/4192956
[pid=11651] ppid=11649 vsize=5684 CPUtime=25.49
/proc/11651/stat : 11651 (picosat) R 11649 11651 11354 0 -1 4194304 1288 0 0 0 2536 13 0 0 25 0 1 0 275884695 5820416 1265 1992294400 134512640 134931368 4294956240 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/11651/statm: 1421 1265 48 102 0 1316 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 5684

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

[startup+28.7013 s]
/proc/loadavg: 1.00 1.00 1.07 2/66 11652
/proc/meminfo: memFree=901720/2055920 swapFree=4184600/4192956
[pid=11651] ppid=11649 vsize=5684 CPUtime=28.68
/proc/11651/stat : 11651 (picosat) R 11649 11651 11354 0 -1 4194304 1289 0 0 0 2855 13 0 0 25 0 1 0 275884695 5820416 1266 1992294400 134512640 134931368 4294956240 18446744073709551615 134520135 0 0 4096 0 0 0 0 17 1 0 0
/proc/11651/statm: 1421 1266 48 102 0 1316 0
Current children cumulated CPU time (s) 28.68
Current children cumulated vsize (KiB) 5684

[startup+30.3016 s]
/proc/loadavg: 1.00 1.00 1.07 2/66 11652
/proc/meminfo: memFree=901720/2055920 swapFree=4184600/4192956
[pid=11651] ppid=11649 vsize=5684 CPUtime=30.28
/proc/11651/stat : 11651 (picosat) R 11649 11651 11354 0 -1 4194304 1289 0 0 0 3015 13 0 0 25 0 1 0 275884695 5820416 1266 1992294400 134512640 134931368 4294956240 18446744073709551615 134525606 0 0 4096 0 0 0 0 17 1 0 0
/proc/11651/statm: 1421 1266 48 102 0 1316 0
Current children cumulated CPU time (s) 30.28
Current children cumulated vsize (KiB) 5684

[startup+31.9059 s]
/proc/loadavg: 1.00 1.00 1.07 2/66 11652
/proc/meminfo: memFree=901720/2055920 swapFree=4184600/4192956
[pid=11651] ppid=11649 vsize=5684 CPUtime=31.89
/proc/11651/stat : 11651 (picosat) R 11649 11651 11354 0 -1 4194304 1289 0 0 0 3176 13 0 0 25 0 1 0 275884695 5820416 1266 1992294400 134512640 134931368 4294956240 18446744073709551615 134529802 0 0 4096 0 0 0 0 17 1 0 0
/proc/11651/statm: 1421 1266 48 102 0 1316 0
Current children cumulated CPU time (s) 31.89
Current children cumulated vsize (KiB) 5684

[startup+32.302 s]
/proc/loadavg: 1.00 1.00 1.07 2/66 11652
/proc/meminfo: memFree=901720/2055920 swapFree=4184600/4192956
[pid=11651] ppid=11649 vsize=5684 CPUtime=32.28
/proc/11651/stat : 11651 (picosat) R 11649 11651 11354 0 -1 4194304 1289 0 0 0 3215 13 0 0 25 0 1 0 275884695 5820416 1266 1992294400 134512640 134931368 4294956240 18446744073709551615 134522823 0 0 4096 0 0 0 0 17 1 0 0
/proc/11651/statm: 1421 1266 48 102 0 1316 0
Current children cumulated CPU time (s) 32.28
Current children cumulated vsize (KiB) 5684

[startup+32.502 s]
/proc/loadavg: 1.00 1.00 1.07 2/66 11652
/proc/meminfo: memFree=901720/2055920 swapFree=4184600/4192956
[pid=11651] ppid=11649 vsize=5684 CPUtime=32.48
/proc/11651/stat : 11651 (picosat) R 11649 11651 11354 0 -1 4194304 1289 0 0 0 3235 13 0 0 25 0 1 0 275884695 5820416 1266 1992294400 134512640 134931368 4294956240 18446744073709551615 134522805 0 0 4096 0 0 0 0 17 1 0 0
/proc/11651/statm: 1421 1266 48 102 0 1316 0
Current children cumulated CPU time (s) 32.48
Current children cumulated vsize (KiB) 5684

Child status: 20
Real time (s): 32.5945
CPU time (s): 32.583
CPU user time (s): 32.4501
CPU system time (s): 0.132979
CPU usage (%): 99.9648
Max. virtual memory (cumulated for all children) (KiB): 5684

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 32.4501
system time used= 0.132979
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1291
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= 44

runsolver used 0.040993 second user time and 0.082987 second system time

The end

Launcher Data 

Begin job on node89 at 2009-05-16 14:55:52
IDJOB=1825094
IDBENCH=70759
IDSOLVER=666
FILE ID=node89/1825094-1242478552
PBS_JOBID= 9306835
Free space on /tmp= 66308 MiB

SOLVER NAME= SAT07 reference solver: picosat 535
BENCH NAME= SAT09/APPLICATIONS/bitverif/minxorminand/minxorminand032.cnf
COMMAND LINE= HOME/picosat BENCHNAME            
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1825094-1242478552/watcher-1825094-1242478552 -o /tmp/evaluation-result-1825094-1242478552/solver-1825094-1242478552 -C 10000 -W 12000 -M 1800 --output-limit 1,15  HOME/picosat HOME/instance-1825094-1242478552.cnf            

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

MD5SUM BENCH= 49dda3faa6676166ee2ccb89f6cd8ca0
RANDOM SEED=971387626

node89.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		: 3000.268
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		: 3000.268
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:        907192 kB
Buffers:         86708 kB
Cached:         951468 kB
SwapCached:       3720 kB
Active:          95772 kB
Inactive:       952300 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        907192 kB
SwapTotal:     4192956 kB
SwapFree:      4184600 kB
Dirty:            1148 kB
Writeback:           0 kB
Mapped:          17488 kB
Slab:            86608 kB
Committed_AS:   881188 kB
PageTables:       1372 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= 66308 MiB
End job on node89 at 2009-05-16 14:56:24