Trace number 356346

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 169.807 169.858

General information on the benchmark

Nameindustrial/palacios/uts/
uts-l05-ipc5-h27-unknown.cnf
MD5SUM7634252332633927f116161c1beb6151
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark21.6977
Satisfiable
(Un)Satisfiability was proved
Number of variables93573
Number of clauses439508
Sum of the clauses size1132510
Maximum clause length403
Minimum clause length1
Number of clauses of size 1190
Number of clauses of size 2347239
Number of clauses of size 388215
Number of clauses of size 41000
Number of clauses of size 5107
Number of clauses of size over 52757

Solver Data (download as text)

169.75/169.85	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/node74/watcher-356346-1177542252 -o ROOT/results/node74/solver-356346-1177542252 -C 10000 -W 15000 -M 1800 --output-limit 1,15 /tmp/evaluation/356346-1177542252/picosat /tmp/evaluation/356346-1177542252/instance-356346-1177542252.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): 15000 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: 0.82 0.38 0.14 3/66 27347
/proc/meminfo: memFree=1842648/2055920 swapFree=4183092/4192956
[pid=27347] ppid=27345 vsize=884 CPUtime=0
/proc/27347/stat : 27347 (picosat) R 27345 27347 27017 0 -1 4194304 129 0 0 0 0 0 0 0 18 0 1 0 202140041 905216 115 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/27347/statm: 221 115 40 102 0 116 0

[startup+0.063231 s]
/proc/loadavg: 0.82 0.38 0.14 3/66 27347
/proc/meminfo: memFree=1842648/2055920 swapFree=4183092/4192956
[pid=27347] ppid=27345 vsize=892 CPUtime=0.06
/proc/27347/stat : 27347 (picosat) R 27345 27347 27017 0 -1 4194304 171 0 0 0 3 3 0 0 18 0 1 0 202140041 913408 155 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/27347/statm: 223 155 46 102 0 118 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 892

[startup+0.101234 s]
/proc/loadavg: 0.82 0.38 0.14 3/66 27347
/proc/meminfo: memFree=1842648/2055920 swapFree=4183092/4192956
[pid=27347] ppid=27345 vsize=1276 CPUtime=0.09
/proc/27347/stat : 27347 (picosat) R 27345 27347 27017 0 -1 4194304 226 0 0 0 4 5 0 0 18 0 1 0 202140041 1306624 210 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/27347/statm: 319 210 46 102 0 214 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1276

[startup+0.301258 s]
/proc/loadavg: 0.82 0.38 0.14 3/66 27347
/proc/meminfo: memFree=1842648/2055920 swapFree=4183092/4192956
[pid=27347] ppid=27345 vsize=1672 CPUtime=0.29
/proc/27347/stat : 27347 (picosat) R 27345 27347 27017 0 -1 4194304 352 0 0 0 13 16 0 0 19 0 1 0 202140041 1712128 336 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/27347/statm: 418 336 46 102 0 313 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1672

[startup+0.701304 s]
/proc/loadavg: 0.82 0.38 0.14 3/66 27347
/proc/meminfo: memFree=1842648/2055920 swapFree=4183092/4192956
[pid=27347] ppid=27345 vsize=3156 CPUtime=0.69
/proc/27347/stat : 27347 (picosat) R 27345 27347 27017 0 -1 4194304 680 0 0 0 32 37 0 0 22 0 1 0 202140041 3231744 664 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/27347/statm: 789 664 46 102 0 684 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3156

[startup+1.5014 s]
/proc/loadavg: 0.82 0.38 0.14 2/67 27348
/proc/meminfo: memFree=1839184/2055920 swapFree=4183092/4192956
[pid=27347] ppid=27345 vsize=5940 CPUtime=1.49
/proc/27347/stat : 27347 (picosat) R 27345 27347 27017 0 -1 4194304 1385 0 0 0 67 82 0 0 25 0 1 0 202140041 6082560 1369 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/27347/statm: 1485 1370 46 102 0 1380 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 5940

[startup+3.10258 s]
/proc/loadavg: 0.83 0.39 0.14 2/67 27348
/proc/meminfo: memFree=1834576/2055920 swapFree=4183092/4192956
[pid=27347] ppid=27345 vsize=16168 CPUtime=3.1
/proc/27347/stat : 27347 (picosat) R 27345 27347 27017 0 -1 4194304 3203 0 0 0 140 170 0 0 25 0 1 0 202140041 16556032 3187 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/27347/statm: 4042 3187 46 102 0 3937 0
Current children cumulated CPU time (s) 3.1
Current children cumulated vsize (KiB) 16168

[startup+6.30195 s]
/proc/loadavg: 0.83 0.39 0.14 2/67 27348
/proc/meminfo: memFree=1827280/2055920 swapFree=4183092/4192956
[pid=27347] ppid=27345 vsize=19288 CPUtime=6.29
/proc/27347/stat : 27347 (picosat) R 27345 27347 27017 0 -1 4194304 3846 0 0 0 440 189 0 0 25 0 1 0 202140041 19750912 3830 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134583827 0 0 4096 0 0 0 0 17 1 0 0
/proc/27347/statm: 4822 3830 48 102 0 4717 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 19288

[startup+12.7017 s]
/proc/loadavg: 0.85 0.40 0.15 2/67 27348
/proc/meminfo: memFree=1826776/2055920 swapFree=4183092/4192956
[pid=27347] ppid=27345 vsize=19684 CPUtime=12.68
/proc/27347/stat : 27347 (picosat) R 27345 27347 27017 0 -1 4194304 3954 0 0 0 1079 189 0 0 25 0 1 0 202140041 20156416 3938 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134522836 0 0 4096 0 0 0 0 17 1 0 0
/proc/27347/statm: 4921 3938 48 102 0 4816 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 19684

[startup+25.5012 s]
/proc/loadavg: 0.88 0.43 0.16 2/67 27348
/proc/meminfo: memFree=1825432/2055920 swapFree=4183092/4192956
[pid=27347] ppid=27345 vsize=21116 CPUtime=25.48
/proc/27347/stat : 27347 (picosat) R 27345 27347 27017 0 -1 4194304 4301 0 0 0 2358 190 0 0 25 0 1 0 202140041 21622784 4285 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134525606 0 0 4096 0 0 0 0 17 1 0 0
/proc/27347/statm: 5279 4285 48 102 0 5174 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 21116

[startup+51.1011 s]
/proc/loadavg: 0.92 0.47 0.18 2/67 27348
/proc/meminfo: memFree=1822488/2055920 swapFree=4183092/4192956
[pid=27347] ppid=27345 vsize=23944 CPUtime=51.08
/proc/27347/stat : 27347 (picosat) R 27345 27347 27017 0 -1 4194304 5035 0 0 0 4917 191 0 0 25 0 1 0 202140041 24518656 5019 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134524112 0 0 4096 0 0 0 0 17 1 0 0
/proc/27347/statm: 5986 5019 48 102 0 5881 0
Current children cumulated CPU time (s) 51.08
Current children cumulated vsize (KiB) 23944

[startup+102.305 s]
/proc/loadavg: 0.97 0.56 0.22 2/67 27348
/proc/meminfo: memFree=1822360/2055920 swapFree=4183092/4192956
[pid=27347] ppid=27345 vsize=24056 CPUtime=102.26
/proc/27347/stat : 27347 (picosat) R 27345 27347 27017 0 -1 4194304 5071 0 0 0 10035 191 0 0 25 0 1 0 202140041 24633344 5055 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134520047 0 0 4096 0 0 0 0 17 1 0 0
/proc/27347/statm: 6014 5055 48 102 0 5909 0
Current children cumulated CPU time (s) 102.26
Current children cumulated vsize (KiB) 24056

[startup+162.302 s]
/proc/loadavg: 0.98 0.63 0.27 2/67 27348
/proc/meminfo: memFree=1821848/2055920 swapFree=4183092/4192956
[pid=27347] ppid=27345 vsize=24592 CPUtime=162.25
/proc/27347/stat : 27347 (picosat) R 27345 27347 27017 0 -1 4194304 5214 0 0 0 16033 192 0 0 25 0 1 0 202140041 25182208 5198 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134525606 0 0 4096 0 0 0 0 17 1 0 0
/proc/27347/statm: 6148 5198 48 102 0 6043 0
Current children cumulated CPU time (s) 162.25
Current children cumulated vsize (KiB) 24592

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

[startup+166.301 s]
/proc/loadavg: 0.99 0.64 0.27 2/67 27348
/proc/meminfo: memFree=1821848/2055920 swapFree=4183092/4192956
[pid=27347] ppid=27345 vsize=24592 CPUtime=166.25
/proc/27347/stat : 27347 (picosat) R 27345 27347 27017 0 -1 4194304 5214 0 0 0 16433 192 0 0 25 0 1 0 202140041 25182208 5198 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/27347/statm: 6148 5198 48 102 0 6043 0
Current children cumulated CPU time (s) 166.25
Current children cumulated vsize (KiB) 24592

[startup+167.902 s]
/proc/loadavg: 0.99 0.64 0.28 2/67 27348
/proc/meminfo: memFree=1821848/2055920 swapFree=4183092/4192956
[pid=27347] ppid=27345 vsize=24592 CPUtime=167.85
/proc/27347/stat : 27347 (picosat) R 27345 27347 27017 0 -1 4194304 5214 0 0 0 16593 192 0 0 25 0 1 0 202140041 25182208 5198 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134529170 0 0 4096 0 0 0 0 17 1 0 0
/proc/27347/statm: 6148 5198 48 102 0 6043 0
Current children cumulated CPU time (s) 167.85
Current children cumulated vsize (KiB) 24592

[startup+168.702 s]
/proc/loadavg: 0.99 0.64 0.28 2/67 27348
/proc/meminfo: memFree=1821848/2055920 swapFree=4183092/4192956
[pid=27347] ppid=27345 vsize=24592 CPUtime=168.65
/proc/27347/stat : 27347 (picosat) R 27345 27347 27017 0 -1 4194304 5214 0 0 0 16673 192 0 0 25 0 1 0 202140041 25182208 5198 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/27347/statm: 6148 5198 48 102 0 6043 0
Current children cumulated CPU time (s) 168.65
Current children cumulated vsize (KiB) 24592

[startup+169.502 s]
/proc/loadavg: 0.99 0.64 0.28 2/67 27348
/proc/meminfo: memFree=1821848/2055920 swapFree=4183092/4192956
[pid=27347] ppid=27345 vsize=24592 CPUtime=169.45
/proc/27347/stat : 27347 (picosat) R 27345 27347 27017 0 -1 4194304 5214 0 0 0 16753 192 0 0 25 0 1 0 202140041 25182208 5198 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/27347/statm: 6148 5198 48 102 0 6043 0
Current children cumulated CPU time (s) 169.45
Current children cumulated vsize (KiB) 24592

[startup+169.702 s]
/proc/loadavg: 0.99 0.64 0.28 2/67 27348
/proc/meminfo: memFree=1821848/2055920 swapFree=4183092/4192956
[pid=27347] ppid=27345 vsize=24592 CPUtime=169.65
/proc/27347/stat : 27347 (picosat) R 27345 27347 27017 0 -1 4194304 5214 0 0 0 16773 192 0 0 25 0 1 0 202140041 25182208 5198 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134525763 0 0 4096 0 0 0 0 17 1 0 0
/proc/27347/statm: 6148 5198 48 102 0 6043 0
Current children cumulated CPU time (s) 169.65
Current children cumulated vsize (KiB) 24592

[startup+169.802 s]
/proc/loadavg: 0.99 0.64 0.28 2/67 27348
/proc/meminfo: memFree=1821848/2055920 swapFree=4183092/4192956
[pid=27347] ppid=27345 vsize=24592 CPUtime=169.75
/proc/27347/stat : 27347 (picosat) R 27345 27347 27017 0 -1 4194304 5214 0 0 0 16783 192 0 0 25 0 1 0 202140041 25182208 5198 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134525621 0 0 4096 0 0 0 0 17 1 0 0
/proc/27347/statm: 6148 5198 48 102 0 6043 0
Current children cumulated CPU time (s) 169.75
Current children cumulated vsize (KiB) 24592

Child status: 20
Real time (s): 169.858
CPU time (s): 169.807
CPU user time (s): 167.878
CPU system time (s): 1.92871
CPU usage (%): 99.9698
Max. virtual memory (cumulated for all children) (KiB): 24592

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 167.878
system time used= 1.92871
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5216
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= 7
involuntary context switches= 267

runsolver used 0.140978 second user time and 0.333949 second system time

The end

Launcher Data (download as text)

Begin job on node74 on Wed Apr 25 23:04:13 UTC 2007

IDJOB= 356346
IDBENCH= 20420
IDSOLVER= 171
FILE ID= node74/356346-1177542252

PBS_JOBID= 4695820

Free space on /tmp= 103197 MiB

SOLVER NAME= picosat 535
BENCH NAME= HOME/pub/bench/SAT07/industrial/palacios/uts/uts-l05-ipc5-h27-unknown.cnf
COMMAND LINE= /tmp/evaluation/356346-1177542252/picosat /tmp/evaluation/356346-1177542252/instance-356346-1177542252.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node74/watcher-356346-1177542252 -o ROOT/results/node74/solver-356346-1177542252 -C 10000 -W 15000 -M 1800 --output-limit 1,15  /tmp/evaluation/356346-1177542252/picosat /tmp/evaluation/356346-1177542252/instance-356346-1177542252.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  7634252332633927f116161c1beb6151

RANDOM SEED= 314302452

TIME LIMIT= 10000 seconds
MEMORY LIMIT= 1800 MiB

Linux node74.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		: 3000.213
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		: 3000.213
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:       1843056 kB
Buffers:         24132 kB
Cached:         120960 kB
SwapCached:       3148 kB
Active:          32200 kB
Inactive:       122732 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1843056 kB
SwapTotal:     4192956 kB
SwapFree:      4183092 kB
Dirty:            8120 kB
Writeback:           0 kB
Mapped:          15804 kB
Slab:            43740 kB
Committed_AS:  4008836 kB
PageTables:       1480 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= 103197 MiB

End job on node74 on Wed Apr 25 23:07:03 UTC 2007