Trace number 1719632

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 68.5136 68.5374

General information on the benchmark

Nameschup-l2s-abp4-1-k31.cnf
MD5SUM2ec4066bd8381455b1990aa40b382ff0
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark14.9847
Satisfiable
(Un)Satisfiability was proved
Number of variables14809
Number of clauses48483
Sum of the clauses size123522
Maximum clause length33
Minimum clause length1
Number of clauses of size 136
Number of clauses of size 224983
Number of clauses of size 322191
Number of clauses of size 4589
Number of clauses of size 5403
Number of clauses of size over 5281

Solver Data 

68.47/68.53	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-1719632-1240647791/watcher-1719632-1240647791 -o /tmp/evaluation-result-1719632-1240647791/solver-1719632-1240647791 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/picosat HOME/instance-1719632-1240647791.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: 1.03 1.04 1.01 3/64 21838
/proc/meminfo: memFree=1936520/2055920 swapFree=4181848/4192956
[pid=21838] ppid=21836 vsize=568 CPUtime=0
/proc/21838/stat : 21838 (picosat) R 21836 21838 21109 0 -1 4194304 68 0 0 0 0 0 0 0 18 0 1 0 92813036 581632 54 1992294400 134512640 134931368 4294956224 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/21838/statm: 142 54 40 102 0 37 0

[startup+0.0957601 s]
/proc/loadavg: 1.03 1.04 1.01 3/64 21838
/proc/meminfo: memFree=1936520/2055920 swapFree=4181848/4192956
[pid=21838] ppid=21836 vsize=1020 CPUtime=0.09
/proc/21838/stat : 21838 (picosat) R 21836 21838 21109 0 -1 4194304 199 0 0 0 3 6 0 0 18 0 1 0 92813036 1044480 185 1992294400 134512640 134931368 4294956224 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/21838/statm: 255 185 40 102 0 150 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1020

[startup+0.101759 s]
/proc/loadavg: 1.03 1.04 1.01 3/64 21838
/proc/meminfo: memFree=1936520/2055920 swapFree=4181848/4192956
[pid=21838] ppid=21836 vsize=1356 CPUtime=0.09
/proc/21838/stat : 21838 (picosat) R 21836 21838 21109 0 -1 4194304 250 0 0 0 3 6 0 0 18 0 1 0 92813036 1388544 236 1992294400 134512640 134931368 4294956224 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/21838/statm: 339 236 40 102 0 234 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1356

[startup+0.301794 s]
/proc/loadavg: 1.03 1.04 1.01 3/64 21838
/proc/meminfo: memFree=1936520/2055920 swapFree=4181848/4192956
[pid=21838] ppid=21836 vsize=2480 CPUtime=0.29
/proc/21838/stat : 21838 (picosat) R 21836 21838 21109 0 -1 4194304 503 0 0 0 13 16 0 0 19 0 1 0 92813036 2539520 489 1992294400 134512640 134931368 4294956224 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/21838/statm: 620 489 40 102 0 515 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2480

[startup+0.701865 s]
/proc/loadavg: 1.03 1.04 1.01 3/64 21838
/proc/meminfo: memFree=1936520/2055920 swapFree=4181848/4192956
[pid=21838] ppid=21836 vsize=3172 CPUtime=0.69
/proc/21838/stat : 21838 (picosat) R 21836 21838 21109 0 -1 4194304 691 0 0 0 49 20 0 0 22 0 1 0 92813036 3248128 665 1992294400 134512640 134931368 4294956224 18446744073709551615 134583827 0 0 4096 0 0 0 0 17 1 0 0
/proc/21838/statm: 793 665 42 102 0 688 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3172

[startup+1.502 s]
/proc/loadavg: 1.03 1.04 1.01 2/65 21839
/proc/meminfo: memFree=1933824/2055920 swapFree=4181848/4192956
[pid=21838] ppid=21836 vsize=3436 CPUtime=1.49
/proc/21838/stat : 21838 (picosat) R 21836 21838 21109 0 -1 4194304 780 0 0 0 129 20 0 0 25 0 1 0 92813036 3518464 754 1992294400 134512640 134931368 4294956224 18446744073709551615 134525703 0 0 4096 0 0 0 0 17 1 0 0
/proc/21838/statm: 859 754 42 102 0 754 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 3436

[startup+3.10128 s]
/proc/loadavg: 1.03 1.04 1.01 2/65 21839
/proc/meminfo: memFree=1933312/2055920 swapFree=4181848/4192956
[pid=21838] ppid=21836 vsize=3704 CPUtime=3.09
/proc/21838/stat : 21838 (picosat) R 21836 21838 21109 0 -1 4194304 852 0 0 0 289 20 0 0 25 0 1 0 92813036 3792896 824 1992294400 134512640 134931368 4294956224 18446744073709551615 134530114 0 0 4096 0 0 0 0 17 1 0 0
/proc/21838/statm: 926 824 48 102 0 821 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 3704

[startup+6.30185 s]
/proc/loadavg: 1.03 1.04 1.01 2/65 21839
/proc/meminfo: memFree=1932480/2055920 swapFree=4181848/4192956
[pid=21838] ppid=21836 vsize=4364 CPUtime=6.29
/proc/21838/stat : 21838 (picosat) R 21836 21838 21109 0 -1 4194304 1004 0 0 0 609 20 0 0 25 0 1 0 92813036 4468736 976 1992294400 134512640 134931368 4294956224 18446744073709551615 134531371 0 0 4096 0 0 0 0 17 1 0 0
/proc/21838/statm: 1091 976 48 102 0 986 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 4364

[startup+12.703 s]
/proc/loadavg: 1.03 1.04 1.01 2/65 21839
/proc/meminfo: memFree=1931904/2055920 swapFree=4181848/4192956
[pid=21838] ppid=21836 vsize=4892 CPUtime=12.69
/proc/21838/stat : 21838 (picosat) R 21836 21838 21109 0 -1 4194304 1152 0 0 0 1249 20 0 0 25 0 1 0 92813036 5009408 1124 1992294400 134512640 134931368 4294956224 18446744073709551615 134522808 0 0 4096 0 0 0 0 17 1 0 0
/proc/21838/statm: 1223 1124 48 102 0 1118 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 4892

[startup+25.5012 s]
/proc/loadavg: 1.02 1.04 1.01 2/65 21839
/proc/meminfo: memFree=1930880/2055920 swapFree=4181848/4192956
[pid=21838] ppid=21836 vsize=6076 CPUtime=25.49
/proc/21838/stat : 21838 (picosat) R 21836 21838 21109 0 -1 4194304 1406 0 0 0 2528 21 0 0 25 0 1 0 92813036 6221824 1378 1992294400 134512640 134931368 4294956224 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/21838/statm: 1519 1378 48 102 0 1414 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 6076

[startup+51.1017 s]
/proc/loadavg: 1.01 1.03 1.01 2/65 21839
/proc/meminfo: memFree=1930368/2055920 swapFree=4181848/4192956
[pid=21838] ppid=21836 vsize=6516 CPUtime=51.07
/proc/21838/stat : 21838 (picosat) R 21836 21838 21109 0 -1 4194304 1522 0 0 0 5086 21 0 0 25 0 1 0 92813036 6672384 1494 1992294400 134512640 134931368 4294956224 18446744073709551615 134525606 0 0 4096 0 0 0 0 17 1 0 0
/proc/21838/statm: 1629 1494 48 102 0 1524 0
Current children cumulated CPU time (s) 51.07
Current children cumulated vsize (KiB) 6516

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

[startup+57.5018 s]
/proc/loadavg: 1.01 1.03 1.01 2/65 21839
/proc/meminfo: memFree=1930368/2055920 swapFree=4181848/4192956
[pid=21838] ppid=21836 vsize=6516 CPUtime=57.47
/proc/21838/stat : 21838 (picosat) R 21836 21838 21109 0 -1 4194304 1524 0 0 0 5726 21 0 0 25 0 1 0 92813036 6672384 1496 1992294400 134512640 134931368 4294956224 18446744073709551615 134529347 0 0 4096 0 0 0 0 17 1 0 0
/proc/21838/statm: 1629 1496 48 102 0 1524 0
Current children cumulated CPU time (s) 57.47
Current children cumulated vsize (KiB) 6516

[startup+63.9019 s]
/proc/loadavg: 1.01 1.03 1.01 2/65 21839
/proc/meminfo: memFree=1930368/2055920 swapFree=4181848/4192956
[pid=21838] ppid=21836 vsize=6516 CPUtime=63.87
/proc/21838/stat : 21838 (picosat) R 21836 21838 21109 0 -1 4194304 1524 0 0 0 6366 21 0 0 25 0 1 0 92813036 6672384 1496 1992294400 134512640 134931368 4294956224 18446744073709551615 134525941 0 0 4096 0 0 0 0 17 1 0 0
/proc/21838/statm: 1629 1496 48 102 0 1524 0
Current children cumulated CPU time (s) 63.87
Current children cumulated vsize (KiB) 6516

[startup+67.1055 s]
/proc/loadavg: 1.01 1.03 1.00 2/65 21839
/proc/meminfo: memFree=1930368/2055920 swapFree=4181848/4192956
[pid=21838] ppid=21836 vsize=6516 CPUtime=67.07
/proc/21838/stat : 21838 (picosat) R 21836 21838 21109 0 -1 4194304 1525 0 0 0 6686 21 0 0 25 0 1 0 92813036 6672384 1497 1992294400 134512640 134931368 4294956224 18446744073709551615 134525675 0 0 4096 0 0 0 0 17 1 0 0
/proc/21838/statm: 1629 1497 48 102 0 1524 0
Current children cumulated CPU time (s) 67.07
Current children cumulated vsize (KiB) 6516

[startup+67.9016 s]
/proc/loadavg: 1.01 1.03 1.00 2/65 21839
/proc/meminfo: memFree=1930368/2055920 swapFree=4181848/4192956
[pid=21838] ppid=21836 vsize=6516 CPUtime=67.87
/proc/21838/stat : 21838 (picosat) R 21836 21838 21109 0 -1 4194304 1525 0 0 0 6766 21 0 0 25 0 1 0 92813036 6672384 1497 1992294400 134512640 134931368 4294956224 18446744073709551615 134530162 0 0 4096 0 0 0 0 17 1 0 0
/proc/21838/statm: 1629 1497 48 102 0 1524 0
Current children cumulated CPU time (s) 67.87
Current children cumulated vsize (KiB) 6516

[startup+68.3017 s]
/proc/loadavg: 1.01 1.03 1.00 2/65 21839
/proc/meminfo: memFree=1930368/2055920 swapFree=4181848/4192956
[pid=21838] ppid=21836 vsize=6516 CPUtime=68.27
/proc/21838/stat : 21838 (picosat) R 21836 21838 21109 0 -1 4194304 1525 0 0 0 6806 21 0 0 25 0 1 0 92813036 6672384 1497 1992294400 134512640 134931368 4294956224 18446744073709551615 134525941 0 0 4096 0 0 0 0 17 1 0 0
/proc/21838/statm: 1629 1497 48 102 0 1524 0
Current children cumulated CPU time (s) 68.27
Current children cumulated vsize (KiB) 6516

[startup+68.5027 s]
/proc/loadavg: 1.01 1.03 1.00 2/65 21839
/proc/meminfo: memFree=1930368/2055920 swapFree=4181848/4192956
[pid=21838] ppid=21836 vsize=6516 CPUtime=68.47
/proc/21838/stat : 21838 (picosat) R 21836 21838 21109 0 -1 4194304 1525 0 0 0 6826 21 0 0 25 0 1 0 92813036 6672384 1497 1992294400 134512640 134931368 4294956224 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/21838/statm: 1629 1497 48 102 0 1524 0
Current children cumulated CPU time (s) 68.47
Current children cumulated vsize (KiB) 6516

Child status: 20
Real time (s): 68.5374
CPU time (s): 68.5136
CPU user time (s): 68.2966
CPU system time (s): 0.216967
CPU usage (%): 99.9653
Max. virtual memory (cumulated for all children) (KiB): 6516

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 68.2966
system time used= 0.216967
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1527
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= 142

runsolver used 0.080987 second user time and 0.119981 second system time

The end

Launcher Data 

Begin job on node4 at 2009-04-25 10:23:11
IDJOB=1719632
IDBENCH=69566
IDSOLVER=563
FILE ID=node4/1719632-1240647791
PBS_JOBID= 9186453
Free space on /tmp= 66204 MiB

SOLVER NAME= SAT07 reference solver: picosat 535
BENCH NAME= SAT_RACE08/cnf/schup-l2s-abp4-1-k31.cnf
COMMAND LINE= HOME/picosat BENCHNAME            
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1719632-1240647791/watcher-1719632-1240647791 -o /tmp/evaluation-result-1719632-1240647791/solver-1719632-1240647791 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/picosat HOME/instance-1719632-1240647791.cnf            

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

MD5SUM BENCH= 2ec4066bd8381455b1990aa40b382ff0
RANDOM SEED=1787334158

node4.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		: 3000.265
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		: 3000.265
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:       1936936 kB
Buffers:          2544 kB
Cached:          60244 kB
SwapCached:       3784 kB
Active:          21540 kB
Inactive:        48012 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1936936 kB
SwapTotal:     4192956 kB
SwapFree:      4181848 kB
Dirty:            1264 kB
Writeback:           0 kB
Mapped:          13828 kB
Slab:            35324 kB
Committed_AS:   419864 kB
PageTables:       1500 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= 66204 MiB
End job on node4 at 2009-04-25 10:24:19