Trace number 312662

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 201.076 201.257

General information on the benchmark

Nameindustrial/anbulagan/
medium-unsat/total-5-13-u.cnf
MD5SUM127968d7d14f3ab7655995f561e62ed8
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark63.9453
Satisfiable
(Un)Satisfiability was proved
Number of variables178708
Number of clauses806681
Sum of the clauses size1842626
Maximum clause length10
Minimum clause length1
Number of clauses of size 115072
Number of clauses of size 2648853
Number of clauses of size 3108896
Number of clauses of size 43760
Number of clauses of size 515040
Number of clauses of size over 515060

Solver Data (download as text)

201.02/201.25	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.2 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node14/watcher-312662-1176857926 -o ROOT/results/node14/solver-312662-1176857926 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/312662-1176857926/picosat /tmp/evaluation/312662-1176857926/instance-312662-1176857926.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): 2400 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 1.00 3/77 2795
/proc/meminfo: memFree=1832456/2055920 swapFree=4145416/4192956
[pid=2795] ppid=2793 vsize=728 CPUtime=0
/proc/2795/stat : 2795 (picosat) R 2793 2795 1621 0 -1 4194304 97 0 0 0 0 0 0 0 18 0 1 0 133710338 745472 82 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/2795/statm: 182 82 40 102 0 77 0

[startup+0.086472 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 2795
/proc/meminfo: memFree=1832456/2055920 swapFree=4145416/4192956
[pid=2795] ppid=2793 vsize=2664 CPUtime=0.07
/proc/2795/stat : 2795 (picosat) R 2793 2795 1621 0 -1 4194304 487 0 0 0 3 4 0 0 18 0 1 0 133710338 2727936 463 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/2795/statm: 666 463 40 102 0 561 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 2664

[startup+0.101472 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 2795
/proc/meminfo: memFree=1832456/2055920 swapFree=4145416/4192956
[pid=2795] ppid=2793 vsize=2796 CPUtime=0.09
/proc/2795/stat : 2795 (picosat) R 2793 2795 1621 0 -1 4194304 493 0 0 0 5 4 0 0 18 0 1 0 133710338 2863104 469 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/2795/statm: 699 469 40 102 0 594 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2796

[startup+0.301491 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 2795
/proc/meminfo: memFree=1832456/2055920 swapFree=4145416/4192956
[pid=2795] ppid=2793 vsize=3192 CPUtime=0.29
/proc/2795/stat : 2795 (picosat) R 2793 2795 1621 0 -1 4194304 614 0 0 0 13 16 0 0 19 0 1 0 133710338 3268608 590 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/2795/statm: 798 590 40 102 0 693 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3192

[startup+0.701529 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 2795
/proc/meminfo: memFree=1832456/2055920 swapFree=4145416/4192956
[pid=2795] ppid=2793 vsize=10400 CPUtime=0.69
/proc/2795/stat : 2795 (picosat) R 2793 2795 1621 0 -1 4194304 1964 0 0 0 32 37 0 0 23 0 1 0 133710338 10649600 1940 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/2795/statm: 2600 1940 40 102 0 2495 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 10400

[startup+1.50161 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 2796
/proc/meminfo: memFree=1819584/2055920 swapFree=4145416/4192956
[pid=2795] ppid=2793 vsize=20184 CPUtime=1.49
/proc/2795/stat : 2795 (picosat) R 2793 2795 1621 0 -1 4194304 3478 0 0 0 69 80 0 0 25 0 1 0 133710338 20668416 3454 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/2795/statm: 5046 3454 40 102 0 4941 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 20184

[startup+3.10176 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 2796
/proc/meminfo: memFree=1817408/2055920 swapFree=4145416/4192956
[pid=2795] ppid=2793 vsize=24224 CPUtime=3.09
/proc/2795/stat : 2795 (picosat) R 2793 2795 1621 0 -1 4194304 4476 0 0 0 144 165 0 0 25 0 1 0 133710338 24805376 4452 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/2795/statm: 6056 4452 40 102 0 5951 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 24224

[startup+6.30106 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 2796
/proc/meminfo: memFree=1808512/2055920 swapFree=4145416/4192956
[pid=2795] ppid=2793 vsize=35056 CPUtime=6.29
/proc/2795/stat : 2795 (picosat) R 2793 2795 1621 0 -1 4194304 6564 0 0 0 311 318 0 0 25 0 1 0 133710338 35897344 6529 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134525621 0 0 4096 0 0 0 0 17 1 0 0
/proc/2795/statm: 8764 6529 42 102 0 8659 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 35056

[startup+12.7017 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 2796
/proc/meminfo: memFree=1806016/2055920 swapFree=4145416/4192956
[pid=2795] ppid=2793 vsize=35064 CPUtime=12.69
/proc/2795/stat : 2795 (picosat) R 2793 2795 1621 0 -1 4194304 6641 0 0 0 951 318 0 0 25 0 1 0 133710338 35905536 6604 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134525606 0 0 4096 0 0 0 0 17 1 0 0
/proc/2795/statm: 8766 6604 48 102 0 8661 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 35064

[startup+25.5019 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 2796
/proc/meminfo: memFree=1806144/2055920 swapFree=4145416/4192956
[pid=2795] ppid=2793 vsize=35064 CPUtime=25.49
/proc/2795/stat : 2795 (picosat) R 2793 2795 1621 0 -1 4194304 6641 0 0 0 2231 318 0 0 25 0 1 0 133710338 35905536 6604 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134525606 0 0 4096 0 0 0 0 17 1 0 0
/proc/2795/statm: 8766 6604 48 102 0 8661 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 35064

[startup+51.1013 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 2796
/proc/meminfo: memFree=1806144/2055920 swapFree=4145416/4192956
[pid=2795] ppid=2793 vsize=35064 CPUtime=51.06
/proc/2795/stat : 2795 (picosat) R 2793 2795 1621 0 -1 4194304 6642 0 0 0 4788 318 0 0 25 0 1 0 133710338 35905536 6605 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134525675 0 0 4096 0 0 0 0 17 1 0 0
/proc/2795/statm: 8766 6605 48 102 0 8661 0
Current children cumulated CPU time (s) 51.06
Current children cumulated vsize (KiB) 35064

[startup+102.306 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 2796
/proc/meminfo: memFree=1804096/2055920 swapFree=4145416/4192956
[pid=2795] ppid=2793 vsize=37016 CPUtime=102.25
/proc/2795/stat : 2795 (picosat) R 2793 2795 1621 0 -1 4194304 7160 0 0 0 9906 319 0 0 25 0 1 0 133710338 37904384 7123 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134529719 0 0 4096 0 0 0 0 17 1 0 0
/proc/2795/statm: 9254 7123 48 102 0 9149 0
Current children cumulated CPU time (s) 102.25
Current children cumulated vsize (KiB) 37016

[startup+162.303 s]
/proc/loadavg: 1.00 1.00 1.00 2/84 2934
/proc/meminfo: memFree=1802560/2055920 swapFree=4145416/4192956
[pid=2795] ppid=2793 vsize=37016 CPUtime=162.17
/proc/2795/stat : 2795 (picosat) R 2793 2795 1621 0 -1 4194304 7163 0 0 0 15897 320 0 0 25 0 1 0 133710338 37904384 7126 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134522823 0 0 4096 0 0 0 0 17 1 0 0
/proc/2795/statm: 9254 7126 48 102 0 9149 0
Current children cumulated CPU time (s) 162.17
Current children cumulated vsize (KiB) 37016

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

[startup+179.102 s]
/proc/loadavg: 1.00 1.00 1.00 2/84 2966
/proc/meminfo: memFree=1802496/2055920 swapFree=4145416/4192956
[pid=2795] ppid=2793 vsize=37016 CPUtime=178.94
/proc/2795/stat : 2795 (picosat) R 2793 2795 1621 0 -1 4194304 7163 0 0 0 17574 320 0 0 25 0 1 0 133710338 37904384 7126 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134522808 0 0 4096 0 0 0 0 17 1 0 0
/proc/2795/statm: 9254 7126 48 102 0 9149 0
Current children cumulated CPU time (s) 178.94
Current children cumulated vsize (KiB) 37016

[startup+191.902 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 2994
/proc/meminfo: memFree=1803440/2055920 swapFree=4145416/4192956
[pid=2795] ppid=2793 vsize=37016 CPUtime=191.72
/proc/2795/stat : 2795 (picosat) R 2793 2795 1621 0 -1 4194304 7163 0 0 0 18852 320 0 0 25 0 1 0 133710338 37904384 7126 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/2795/statm: 9254 7126 48 102 0 9149 0
Current children cumulated CPU time (s) 191.72
Current children cumulated vsize (KiB) 37016

[startup+195.102 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 2994
/proc/meminfo: memFree=1803440/2055920 swapFree=4145416/4192956
[pid=2795] ppid=2793 vsize=37016 CPUtime=194.91
/proc/2795/stat : 2795 (picosat) R 2793 2795 1621 0 -1 4194304 7163 0 0 0 19171 320 0 0 25 0 1 0 133710338 37904384 7126 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134525741 0 0 4096 0 0 0 0 17 1 0 0
/proc/2795/statm: 9254 7126 48 102 0 9149 0
Current children cumulated CPU time (s) 194.91
Current children cumulated vsize (KiB) 37016

[startup+198.301 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 2994
/proc/meminfo: memFree=1803448/2055920 swapFree=4145416/4192956
[pid=2795] ppid=2793 vsize=37016 CPUtime=198.11
/proc/2795/stat : 2795 (picosat) R 2793 2795 1621 0 -1 4194304 7163 0 0 0 19491 320 0 0 25 0 1 0 133710338 37904384 7126 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134525621 0 0 4096 0 0 0 0 17 1 0 0
/proc/2795/statm: 9254 7126 48 102 0 9149 0
Current children cumulated CPU time (s) 198.11
Current children cumulated vsize (KiB) 37016

[startup+199.901 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 2994
/proc/meminfo: memFree=1803456/2055920 swapFree=4145416/4192956
[pid=2795] ppid=2793 vsize=37016 CPUtime=199.71
/proc/2795/stat : 2795 (picosat) R 2793 2795 1621 0 -1 4194304 7163 0 0 0 19651 320 0 0 25 0 1 0 133710338 37904384 7126 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134525606 0 0 4096 0 0 0 0 17 1 0 0
/proc/2795/statm: 9254 7126 48 102 0 9149 0
Current children cumulated CPU time (s) 199.71
Current children cumulated vsize (KiB) 37016

[startup+200.701 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 2994
/proc/meminfo: memFree=1803456/2055920 swapFree=4145416/4192956
[pid=2795] ppid=2793 vsize=37016 CPUtime=200.51
/proc/2795/stat : 2795 (picosat) R 2793 2795 1621 0 -1 4194304 7163 0 0 0 19731 320 0 0 25 0 1 0 133710338 37904384 7126 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/2795/statm: 9254 7126 48 102 0 9149 0
Current children cumulated CPU time (s) 200.51
Current children cumulated vsize (KiB) 37016

[startup+201.101 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 2994
/proc/meminfo: memFree=1803456/2055920 swapFree=4145416/4192956
[pid=2795] ppid=2793 vsize=37016 CPUtime=200.91
/proc/2795/stat : 2795 (picosat) R 2793 2795 1621 0 -1 4194304 7163 0 0 0 19771 320 0 0 25 0 1 0 133710338 37904384 7126 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/2795/statm: 9254 7126 48 102 0 9149 0
Current children cumulated CPU time (s) 200.91
Current children cumulated vsize (KiB) 37016

[startup+201.201 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 2994
/proc/meminfo: memFree=1803456/2055920 swapFree=4145416/4192956
[pid=2795] ppid=2793 vsize=37020 CPUtime=201.02
/proc/2795/stat : 2795 (picosat) R 2793 2795 1621 0 -1 4194304 7164 0 0 0 19782 320 0 0 25 0 1 0 133710338 37908480 7127 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134579031 0 0 4096 0 0 0 0 17 1 0 0
/proc/2795/statm: 9255 7127 48 102 0 9150 0
Current children cumulated CPU time (s) 201.02
Current children cumulated vsize (KiB) 37020

Child status: 20
Real time (s): 201.257
CPU time (s): 201.076
CPU user time (s): 197.868
CPU system time (s): 3.20851
CPU usage (%): 99.9102
Max. virtual memory (cumulated for all children) (KiB): 37020

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 197.868
system time used= 3.20851
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 7165
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= 6
involuntary context switches= 4418

runsolver used 0.230964 second user time and 0.510922 second system time

The end

Launcher Data (download as text)

Begin job on node14 on Wed Apr 18 00:58:46 UTC 2007

IDJOB= 312662
IDBENCH= 20347
IDSOLVER= 106
FILE ID= node14/312662-1176857926

PBS_JOBID= 4590212

Free space on /tmp= 66289 MiB

SOLVER NAME= picosat 535
BENCH NAME= HOME/pub/bench/SAT07/industrial/anbulagan/medium-unsat/total-5-13-u.cnf
COMMAND LINE= /tmp/evaluation/312662-1176857926/picosat /tmp/evaluation/312662-1176857926/instance-312662-1176857926.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node14/watcher-312662-1176857926 -o ROOT/results/node14/solver-312662-1176857926 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/312662-1176857926/picosat /tmp/evaluation/312662-1176857926/instance-312662-1176857926.cnf            

META MD5SUM SOLVER= 1cb12d44dc66ecc4d20a168f5cfd1323
MD5SUM BENCH=  127968d7d14f3ab7655995f561e62ed8

RANDOM SEED= 704810422

TIME LIMIT= 1200 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:       1832928 kB
Buffers:         23652 kB
Cached:         126752 kB
SwapCached:      14700 kB
Active:          68332 kB
Inactive:       114136 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1832928 kB
SwapTotal:     4192956 kB
SwapFree:      4145416 kB
Dirty:           14676 kB
Writeback:           0 kB
Mapped:          35756 kB
Slab:            26056 kB
Committed_AS:  6586884 kB
PageTables:       1804 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= 66289 MiB

End job on node14 on Wed Apr 18 01:02:07 UTC 2007