Trace number 320627

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 156.739 156.816

General information on the benchmark

Nameindustrial/narain/
clauses-10.cnf
MD5SUM98c58d3136fcf1971f77037eb3533718
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark98.347
Satisfiable
(Un)Satisfiability was proved
Number of variables2270929
Number of clauses8901946
Sum of the clauses size22176046
Maximum clause length865
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 26786479
Number of clauses of size 31496293
Number of clauses of size 414719
Number of clauses of size 5555520
Number of clauses of size over 548934

Solver Data (download as text)

156.61/156.78	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.1 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node42/watcher-320627-1173048503 -o ROOT/results/node42/solver-320627-1173048503 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/320627-1173048503/picosat /tmp/evaluation/320627-1173048503/instance-320627-1173048503.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: 1.14 1.00 0.95 3/64 32255
/proc/meminfo: memFree=830696/2055920 swapFree=4192952/4192956
[pid=32255] ppid=32253 vsize=1080 CPUtime=0
/proc/32255/stat : 32255 (picosat) R 32253 32255 31354 0 -1 4194304 190 0 0 0 0 0 0 0 18 0 1 0 30803848 1105920 175 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/32255/statm: 270 176 40 102 0 165 0

[startup+0.0128531 s]
/proc/loadavg: 1.14 1.00 0.95 3/64 32255
/proc/meminfo: memFree=830696/2055920 swapFree=4192952/4192956
[pid=32255] ppid=32253 vsize=1080 CPUtime=0
/proc/32255/stat : 32255 (picosat) R 32253 32255 31354 0 -1 4194304 194 0 0 0 0 0 0 0 18 0 1 0 30803848 1105920 179 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/32255/statm: 270 179 40 102 0 165 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 1080

[startup+0.101869 s]
/proc/loadavg: 1.14 1.00 0.95 3/64 32255
/proc/meminfo: memFree=830696/2055920 swapFree=4192952/4192956
[pid=32255] ppid=32253 vsize=1812 CPUtime=0.09
/proc/32255/stat : 32255 (picosat) R 32253 32255 31354 0 -1 4194304 317 0 0 0 5 4 0 0 18 0 1 0 30803848 1855488 302 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/32255/statm: 453 302 40 102 0 348 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1812

[startup+0.301906 s]
/proc/loadavg: 1.14 1.00 0.95 3/64 32255
/proc/meminfo: memFree=830696/2055920 swapFree=4192952/4192956
[pid=32255] ppid=32253 vsize=3412 CPUtime=0.29
/proc/32255/stat : 32255 (picosat) R 32253 32255 31354 0 -1 4194304 613 0 0 0 13 16 0 0 19 0 1 0 30803848 3493888 598 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/32255/statm: 853 598 40 102 0 748 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3412

[startup+0.701982 s]
/proc/loadavg: 1.14 1.00 0.95 3/64 32255
/proc/meminfo: memFree=830696/2055920 swapFree=4192952/4192956
[pid=32255] ppid=32253 vsize=6520 CPUtime=0.69
/proc/32255/stat : 32255 (picosat) R 32253 32255 31354 0 -1 4194304 1148 0 0 0 30 39 0 0 22 0 1 0 30803848 6676480 1133 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/32255/statm: 1630 1133 40 102 0 1525 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 6520

[startup+1.50113 s]
/proc/loadavg: 1.14 1.00 0.95 2/65 32256
/proc/meminfo: memFree=824800/2055920 swapFree=4192952/4192956
[pid=32255] ppid=32253 vsize=12728 CPUtime=1.49
/proc/32255/stat : 32255 (picosat) R 32253 32255 31354 0 -1 4194304 2184 0 0 0 67 82 0 0 25 0 1 0 30803848 13033472 2169 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/32255/statm: 3182 2169 40 102 0 3077 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 12728

[startup+3.10145 s]
/proc/loadavg: 1.14 1.00 0.95 2/65 32256
/proc/meminfo: memFree=818912/2055920 swapFree=4192952/4192956
[pid=32255] ppid=32253 vsize=25276 CPUtime=3.08
/proc/32255/stat : 32255 (picosat) R 32253 32255 31354 0 -1 4194304 4346 0 0 0 139 169 0 0 25 0 1 0 30803848 25882624 4331 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134586174 0 0 4096 0 0 0 0 17 0 0 0
/proc/32255/statm: 6319 4331 40 102 0 6214 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 25276

[startup+6.30105 s]
/proc/loadavg: 1.21 1.02 0.95 2/65 32256
/proc/meminfo: memFree=797024/2055920 swapFree=4192952/4192956
[pid=32255] ppid=32253 vsize=49844 CPUtime=6.29
/proc/32255/stat : 32255 (picosat) R 32253 32255 31354 0 -1 4194304 8438 0 0 0 287 342 0 0 25 0 1 0 30803848 51040256 8423 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/32255/statm: 12461 8423 40 102 0 12356 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 49844

[startup+12.7013 s]
/proc/loadavg: 1.19 1.02 0.95 2/65 32256
/proc/meminfo: memFree=771488/2055920 swapFree=4192952/4192956
[pid=32255] ppid=32253 vsize=68160 CPUtime=12.68
/proc/32255/stat : 32255 (picosat) R 32253 32255 31354 0 -1 4194304 16587 0 0 0 578 690 0 0 25 0 1 0 30803848 69795840 16572 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/32255/statm: 17040 16572 40 102 0 16935 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 68160

[startup+25.5017 s]
/proc/loadavg: 1.15 1.01 0.95 2/65 32256
/proc/meminfo: memFree=714976/2055920 swapFree=4192952/4192956
[pid=32255] ppid=32253 vsize=132076 CPUtime=25.48
/proc/32255/stat : 32255 (picosat) R 32253 32255 31354 0 -1 4194304 30162 0 0 0 1151 1397 0 0 25 0 1 0 30803848 135245824 30147 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/32255/statm: 33019 30147 40 102 0 32914 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 132076

[startup+51.1016 s]
/proc/loadavg: 1.10 1.01 0.95 2/65 32256
/proc/meminfo: memFree=613408/2055920 swapFree=4192952/4192956
[pid=32255] ppid=32253 vsize=258308 CPUtime=51.05
/proc/32255/stat : 32255 (picosat) R 32253 32255 31354 0 -1 4194304 55885 0 0 0 2329 2776 0 0 25 0 1 0 30803848 264507392 55870 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/32255/statm: 64577 55870 40 102 0 64472 0
Current children cumulated CPU time (s) 51.05
Current children cumulated vsize (KiB) 258308

[startup+102.305 s]
/proc/loadavg: 1.04 1.01 0.95 2/65 32256
/proc/meminfo: memFree=511968/2055920 swapFree=4192952/4192956
[pid=32255] ppid=32253 vsize=476284 CPUtime=102.24
/proc/32255/stat : 32255 (picosat) R 32253 32255 31354 0 -1 4194304 80603 0 0 0 6418 3806 0 0 25 0 1 0 30803848 487714816 80575 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134530799 0 0 4096 0 0 0 0 17 1 0 0
/proc/32255/statm: 119071 80575 48 102 0 118966 0
Current children cumulated CPU time (s) 102.24
Current children cumulated vsize (KiB) 476284

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

[startup+127.901 s]
/proc/loadavg: 1.02 1.00 0.95 2/65 32256
/proc/meminfo: memFree=511904/2055920 swapFree=4192952/4192956
[pid=32255] ppid=32253 vsize=476284 CPUtime=127.82
/proc/32255/stat : 32255 (picosat) R 32253 32255 31354 0 -1 4194304 80603 0 0 0 8976 3806 0 0 25 0 1 0 30803848 487714816 80575 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134525606 0 0 4096 0 0 0 0 17 1 0 0
/proc/32255/statm: 119071 80575 48 102 0 118966 0
Current children cumulated CPU time (s) 127.82
Current children cumulated vsize (KiB) 476284

[startup+140.702 s]
/proc/loadavg: 1.02 1.00 0.95 2/65 32256
/proc/meminfo: memFree=513504/2055920 swapFree=4192952/4192956
[pid=32255] ppid=32253 vsize=471864 CPUtime=140.62
/proc/32255/stat : 32255 (picosat) R 32253 32255 31354 0 -1 4194304 80800 0 0 0 10256 3806 0 0 25 0 1 0 30803848 483188736 80173 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134522740 0 0 4096 0 0 0 0 17 1 0 0
/proc/32255/statm: 117966 80173 48 102 0 117861 0
Current children cumulated CPU time (s) 140.62
Current children cumulated vsize (KiB) 471864

[startup+147.102 s]
/proc/loadavg: 1.02 1.00 0.95 2/65 32256
/proc/meminfo: memFree=514144/2055920 swapFree=4192952/4192956
[pid=32255] ppid=32253 vsize=470304 CPUtime=147.02
/proc/32255/stat : 32255 (picosat) R 32253 32255 31354 0 -1 4194304 80851 0 0 0 10895 3807 0 0 25 0 1 0 30803848 481591296 80010 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134525589 0 0 4096 0 0 0 0 17 1 0 0
/proc/32255/statm: 117576 80010 48 102 0 117471 0
Current children cumulated CPU time (s) 147.02
Current children cumulated vsize (KiB) 470304

[startup+153.501 s]
/proc/loadavg: 1.02 1.00 0.95 2/65 32256
/proc/meminfo: memFree=513888/2055920 swapFree=4192952/4192956
[pid=32255] ppid=32253 vsize=469784 CPUtime=153.42
/proc/32255/stat : 32255 (picosat) R 32253 32255 31354 0 -1 4194304 80999 0 0 0 11535 3807 0 0 25 0 1 0 30803848 481058816 80080 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134522712 0 0 4096 0 0 0 0 17 1 0 0
/proc/32255/statm: 117446 80080 48 102 0 117341 0
Current children cumulated CPU time (s) 153.42
Current children cumulated vsize (KiB) 469784

[startup+155.105 s]
/proc/loadavg: 1.01 1.00 0.95 2/65 32256
/proc/meminfo: memFree=513888/2055920 swapFree=4192952/4192956
[pid=32255] ppid=32253 vsize=469784 CPUtime=155.02
/proc/32255/stat : 32255 (picosat) R 32253 32255 31354 0 -1 4194304 80999 0 0 0 11695 3807 0 0 25 0 1 0 30803848 481058816 80080 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134531364 0 0 4096 0 0 0 0 17 1 0 0
/proc/32255/statm: 117446 80080 48 102 0 117341 0
Current children cumulated CPU time (s) 155.02
Current children cumulated vsize (KiB) 469784

[startup+155.902 s]
/proc/loadavg: 1.01 1.00 0.95 2/65 32256
/proc/meminfo: memFree=513888/2055920 swapFree=4192952/4192956
[pid=32255] ppid=32253 vsize=469788 CPUtime=155.82
/proc/32255/stat : 32255 (picosat) R 32253 32255 31354 0 -1 4194304 81000 0 0 0 11775 3807 0 0 25 0 1 0 30803848 481062912 80081 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134533714 0 0 4096 0 0 0 0 17 1 0 0
/proc/32255/statm: 117447 80081 48 102 0 117342 0
Current children cumulated CPU time (s) 155.82
Current children cumulated vsize (KiB) 469788

[startup+156.302 s]
/proc/loadavg: 1.01 1.00 0.95 2/65 32256
/proc/meminfo: memFree=528032/2055920 swapFree=4192952/4192956
[pid=32255] ppid=32253 vsize=444440 CPUtime=156.21
/proc/32255/stat : 32255 (picosat) R 32253 32255 31354 0 -1 4194304 81000 0 0 0 11814 3807 0 0 25 0 1 0 30803848 455106560 75712 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134533842 0 0 4096 0 0 0 0 17 1 0 0
/proc/32255/statm: 111110 75712 48 102 0 111005 0
Current children cumulated CPU time (s) 156.21
Current children cumulated vsize (KiB) 444440

[startup+156.703 s]
/proc/loadavg: 1.01 1.00 0.95 2/65 32256
/proc/meminfo: memFree=528032/2055920 swapFree=4192952/4192956
[pid=32255] ppid=32253 vsize=444440 CPUtime=156.61
/proc/32255/stat : 32255 (picosat) R 32253 32255 31354 0 -1 4194304 81000 0 0 0 11854 3807 0 0 25 0 1 0 30803848 455106560 75712 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134533822 0 0 4096 0 0 0 0 17 1 0 0
/proc/32255/statm: 111110 75712 48 102 0 111005 0
Current children cumulated CPU time (s) 156.61
Current children cumulated vsize (KiB) 444440

[startup+156.802 s]
/proc/loadavg: 1.01 1.00 0.95 2/65 32256
/proc/meminfo: memFree=528032/2055920 swapFree=4192952/4192956
[pid=32255] ppid=32253 vsize=0 CPUtime=156.71
/proc/32255/stat : 32255 (picosat) R 32253 32255 31354 0 -1 4194308 81001 0 0 0 11860 3811 0 0 25 0 1 0 30803848 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 0 0 0 0 17 1 0 0
/proc/32255/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 156.71
Current children cumulated vsize (KiB) 0

Child status: 20
Real time (s): 156.816
CPU time (s): 156.739
CPU user time (s): 118.61
CPU system time (s): 38.1292
CPU usage (%): 99.9508
Max. virtual memory (cumulated for all children) (KiB): 476284

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 118.61
system time used= 38.1292
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 81001
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= 493

runsolver used 0.093985 second user time and 0.349946 second system time

The end

Launcher Data (download as text)

Begin job on node42 on Sun Mar  4 22:48:24 UTC 2007

IDJOB= 320627
IDBENCH= 20508
IDSOLVER= 106
FILE ID= node42/320627-1173048503

PBS_JOBID= 4012505

Free space on /tmp= 66342 MiB

SOLVER NAME= picosat 535
BENCH NAME= HOME/pub/bench/SAT07/industrial/narain/clauses-10.cnf
COMMAND LINE= /tmp/evaluation/320627-1173048503/picosat /tmp/evaluation/320627-1173048503/instance-320627-1173048503.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node42/watcher-320627-1173048503 -o ROOT/results/node42/solver-320627-1173048503 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/320627-1173048503/picosat /tmp/evaluation/320627-1173048503/instance-320627-1173048503.cnf            

META MD5SUM SOLVER= 1cb12d44dc66ecc4d20a168f5cfd1323
MD5SUM BENCH=  98c58d3136fcf1971f77037eb3533718

RANDOM SEED= 702376467

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node42.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		: 3000.263
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		: 3000.263
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:        831168 kB
Buffers:         46828 kB
Cached:        1057420 kB
SwapCached:          4 kB
Active:         672332 kB
Inactive:       465940 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        831168 kB
SwapTotal:     4192956 kB
SwapFree:      4192952 kB
Dirty:          184032 kB
Writeback:           0 kB
Mapped:          44216 kB
Slab:            72464 kB
Committed_AS:   106864 kB
PageTables:       1456 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= 66342 MiB

End job on node42 on Sun Mar  4 22:51:01 UTC 2007