Trace number 455831

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
picosat 535UNSAT 18.1802 18.1863

General information on the benchmark

Namecrafted/spence/
medium/s61-100.cnf
MD5SUM8e686ecbc85309de84d77c0df9eeaa58
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark2.02369
Satisfiable
(Un)Satisfiability was proved
Number of variables61
Number of clauses132
Sum of the clauses size396
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 3132
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

18.09/18.18	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node14/watcher-455831-1178312019 -o ROOT/results/node14/solver-455831-1178312019 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/455831-1178312019/picosat /tmp/evaluation/455831-1178312019/instance-455831-1178312019.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 7500 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: 1.91 1.41 1.12 3/77 9100
/proc/meminfo: memFree=1841920/2055920 swapFree=4148836/4192956
[pid=9100] ppid=9098 vsize=568 CPUtime=0
/proc/9100/stat : 9100 (picosat) R 9098 9100 8878 0 -1 4194304 71 0 0 0 0 0 0 0 18 0 1 0 279119655 581632 58 18446744073709551615 134512640 134931368 4294956592 18446744073709551615 134583827 0 0 4096 0 0 0 0 17 1 0 0
/proc/9100/statm: 142 58 42 102 0 37 0

[startup+0.053687 s]
/proc/loadavg: 1.91 1.41 1.12 3/77 9100
/proc/meminfo: memFree=1841920/2055920 swapFree=4148836/4192956
[pid=9100] ppid=9098 vsize=576 CPUtime=0.05
/proc/9100/stat : 9100 (picosat) R 9098 9100 8878 0 -1 4194304 102 0 0 0 5 0 0 0 18 0 1 0 279119655 589824 87 18446744073709551615 134512640 134931368 4294956592 18446744073709551615 134529356 0 0 4096 0 0 0 0 17 1 0 0
/proc/9100/statm: 144 87 48 102 0 39 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 576

[startup+0.101666 s]
/proc/loadavg: 1.91 1.41 1.12 3/77 9100
/proc/meminfo: memFree=1841920/2055920 swapFree=4148836/4192956
[pid=9100] ppid=9098 vsize=704 CPUtime=0.09
/proc/9100/stat : 9100 (picosat) R 9098 9100 8878 0 -1 4194304 105 0 0 0 9 0 0 0 18 0 1 0 279119655 720896 90 18446744073709551615 134512640 134931368 4294956592 18446744073709551615 134525788 0 0 4096 0 0 0 0 17 1 0 0
/proc/9100/statm: 176 90 48 102 0 71 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 704

[startup+0.301685 s]
/proc/loadavg: 1.91 1.41 1.12 3/77 9100
/proc/meminfo: memFree=1841920/2055920 swapFree=4148836/4192956
[pid=9100] ppid=9098 vsize=704 CPUtime=0.29
/proc/9100/stat : 9100 (picosat) R 9098 9100 8878 0 -1 4194304 112 0 0 0 29 0 0 0 19 0 1 0 279119655 720896 97 18446744073709551615 134512640 134931368 4294956592 18446744073709551615 134529607 0 0 4096 0 0 0 0 17 1 0 0
/proc/9100/statm: 176 97 48 102 0 71 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 704

[startup+0.701723 s]
/proc/loadavg: 1.91 1.41 1.12 3/77 9100
/proc/meminfo: memFree=1841920/2055920 swapFree=4148836/4192956
[pid=9100] ppid=9098 vsize=704 CPUtime=0.69
/proc/9100/stat : 9100 (picosat) R 9098 9100 8878 0 -1 4194304 123 0 0 0 69 0 0 0 23 0 1 0 279119655 720896 108 18446744073709551615 134512640 134931368 4294956592 18446744073709551615 134525788 0 0 4096 0 0 0 0 17 1 0 0
/proc/9100/statm: 176 108 48 102 0 71 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 704

[startup+1.5018 s]
/proc/loadavg: 1.84 1.40 1.12 2/78 9101
/proc/meminfo: memFree=1841592/2055920 swapFree=4148836/4192956
[pid=9100] ppid=9098 vsize=820 CPUtime=1.49
/proc/9100/stat : 9100 (picosat) R 9098 9100 8878 0 -1 4194304 137 0 0 0 149 0 0 0 25 0 1 0 279119655 839680 122 18446744073709551615 134512640 134931368 4294956592 18446744073709551615 134525788 0 0 4096 0 0 0 0 17 1 0 0
/proc/9100/statm: 205 122 48 102 0 100 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 820

[startup+3.10195 s]
/proc/loadavg: 1.84 1.40 1.12 2/78 9101
/proc/meminfo: memFree=1841400/2055920 swapFree=4148836/4192956
[pid=9100] ppid=9098 vsize=820 CPUtime=3.09
/proc/9100/stat : 9100 (picosat) R 9098 9100 8878 0 -1 4194304 152 0 0 0 309 0 0 0 25 0 1 0 279119655 839680 137 18446744073709551615 134512640 134931368 4294956592 18446744073709551615 134529850 0 0 4096 0 0 0 0 17 1 0 0
/proc/9100/statm: 205 137 48 102 0 100 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 820

[startup+6.30125 s]
/proc/loadavg: 1.84 1.40 1.12 2/78 9101
/proc/meminfo: memFree=1841336/2055920 swapFree=4148836/4192956
[pid=9100] ppid=9098 vsize=944 CPUtime=6.29
/proc/9100/stat : 9100 (picosat) R 9098 9100 8878 0 -1 4194304 178 0 0 0 629 0 0 0 25 0 1 0 279119655 966656 163 18446744073709551615 134512640 134931368 4294956592 18446744073709551615 134525855 0 0 4096 0 0 0 0 17 1 0 0
/proc/9100/statm: 236 163 48 102 0 131 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 944

[startup+12.7019 s]
/proc/loadavg: 1.71 1.39 1.12 2/78 9101
/proc/meminfo: memFree=1841208/2055920 swapFree=4148836/4192956
[pid=9100] ppid=9098 vsize=1044 CPUtime=12.69
/proc/9100/stat : 9100 (picosat) R 9098 9100 8878 0 -1 4194304 205 0 0 0 1269 0 0 0 25 0 1 0 279119655 1069056 190 18446744073709551615 134512640 134931368 4294956592 18446744073709551615 134549512 0 0 4096 0 0 0 0 17 1 0 0
/proc/9100/statm: 261 190 48 102 0 156 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 1044

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

[startup+15.9012 s]
/proc/loadavg: 1.71 1.39 1.12 2/78 9101
/proc/meminfo: memFree=1841208/2055920 swapFree=4148836/4192956
[pid=9100] ppid=9098 vsize=1044 CPUtime=15.89
/proc/9100/stat : 9100 (picosat) R 9098 9100 8878 0 -1 4194304 211 0 0 0 1589 0 0 0 25 0 1 0 279119655 1069056 196 18446744073709551615 134512640 134931368 4294956592 18446744073709551615 134525791 0 0 4096 0 0 0 0 17 1 0 0
/proc/9100/statm: 261 196 48 102 0 156 0
Current children cumulated CPU time (s) 15.89
Current children cumulated vsize (KiB) 1044

[startup+17.5013 s]
/proc/loadavg: 1.65 1.38 1.12 2/78 9101
/proc/meminfo: memFree=1841208/2055920 swapFree=4148836/4192956
[pid=9100] ppid=9098 vsize=1044 CPUtime=17.49
/proc/9100/stat : 9100 (picosat) R 9098 9100 8878 0 -1 4194304 216 0 0 0 1749 0 0 0 25 0 1 0 279119655 1069056 201 18446744073709551615 134512640 134931368 4294956592 18446744073709551615 134525797 0 0 4096 0 0 0 0 17 1 0 0
/proc/9100/statm: 261 201 48 102 0 156 0
Current children cumulated CPU time (s) 17.49
Current children cumulated vsize (KiB) 1044

[startup+17.9013 s]
/proc/loadavg: 1.65 1.38 1.12 2/78 9101
/proc/meminfo: memFree=1841208/2055920 swapFree=4148836/4192956
[pid=9100] ppid=9098 vsize=1044 CPUtime=17.89
/proc/9100/stat : 9100 (picosat) R 9098 9100 8878 0 -1 4194304 216 0 0 0 1789 0 0 0 25 0 1 0 279119655 1069056 201 18446744073709551615 134512640 134931368 4294956592 18446744073709551615 134525791 0 0 4096 0 0 0 0 17 1 0 0
/proc/9100/statm: 261 201 48 102 0 156 0
Current children cumulated CPU time (s) 17.89
Current children cumulated vsize (KiB) 1044

[startup+18.1014 s]
/proc/loadavg: 1.65 1.38 1.12 2/78 9101
/proc/meminfo: memFree=1841208/2055920 swapFree=4148836/4192956
[pid=9100] ppid=9098 vsize=1044 CPUtime=18.09
/proc/9100/stat : 9100 (picosat) R 9098 9100 8878 0 -1 4194304 216 0 0 0 1809 0 0 0 25 0 1 0 279119655 1069056 201 18446744073709551615 134512640 134931368 4294956592 18446744073709551615 134525788 0 0 4096 0 0 0 0 17 1 0 0
/proc/9100/statm: 261 201 48 102 0 156 0
Current children cumulated CPU time (s) 18.09
Current children cumulated vsize (KiB) 1044

Child status: 20
Real time (s): 18.1863
CPU time (s): 18.1802
CPU user time (s): 18.1792
CPU system time (s): 0.000999
CPU usage (%): 99.9666
Max. virtual memory (cumulated for all children) (KiB): 1056

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 18.1792
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 218
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= 8
involuntary context switches= 375

runsolver used 0.021996 second user time and 0.036994 second system time

The end

Launcher Data (download as text)

Begin job on node14 on Fri May  4 20:53:39 UTC 2007

IDJOB= 455831
IDBENCH= 20433
IDSOLVER= 171
FILE ID= node14/455831-1178312019

PBS_JOBID= 5188550

Free space on /tmp= 66564 MiB

SOLVER NAME= picosat 535
BENCH NAME= HOME/pub/bench/SAT07/crafted/spence/medium/s61-100.cnf
COMMAND LINE= /tmp/evaluation/455831-1178312019/picosat /tmp/evaluation/455831-1178312019/instance-455831-1178312019.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node14/watcher-455831-1178312019 -o ROOT/results/node14/solver-455831-1178312019 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/455831-1178312019/picosat /tmp/evaluation/455831-1178312019/instance-455831-1178312019.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  8e686ecbc85309de84d77c0df9eeaa58

RANDOM SEED= 242887355

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node14.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		: 3000.227
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		: 3000.227
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:       1842328 kB
Buffers:         37372 kB
Cached:         102320 kB
SwapCached:      11676 kB
Active:          58496 kB
Inactive:       104628 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1842328 kB
SwapTotal:     4192956 kB
SwapFree:      4148836 kB
Dirty:             652 kB
Writeback:           0 kB
Mapped:          30240 kB
Slab:            35932 kB
Committed_AS:  9400556 kB
PageTables:       1784 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= 66564 MiB

End job on node14 on Fri May  4 20:53:57 UTC 2007