Trace number 458188

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
PBS4_v2 2007-03-23UNSAT 46.328 46.3441

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111228076.opb
MD5SUM5e07f8b43a59b370ff10f0589c5144c8
Bench CategorySATUNSAT-SMALLINT-LIN (no optimisation, small integers, linear constraints)
Best result obtained on this benchmarkUNSAT
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark0.241962
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables169
Total number of constraints101
Number of constraints which are clauses30
Number of constraints which are cardinality constraints (but not clauses)70
Number of constraints which are nor clauses,nor cardinality constraints1
Minimum length of a constraint2
Maximum length of a constraint169
Number of terms in the objective function 0
Biggest coefficient in the objective function 0
Number of bits for the biggest coefficient in the objective function 0
Sum of the numbers in the objective function 0
Number of bits of the sum of numbers in the objective function 0
Biggest number in a constraint 38
Number of bits of the biggest number in a constraint 6
Biggest sum of numbers in a constraint 1225
Number of bits of the biggest sum of numbers11
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data (download as text)

0.00/0.00	c PBS v4 by Bashar Al-Rawi & Fadi Aloul
0.00/0.00	c Solving /tmp/evaluation/458188-1178619724/instance-458188-1178619724.opb ......
46.27/46.34	c done parsing opb.
46.27/46.34	s UNSATISFIABLE
46.27/46.34	c Total Run Time					46.321

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/458188-1178619724/instance-458188-1178619724.opb is already a linear file

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node3/watcher-458188-1178619724 -o ROOT/results/node3/solver-458188-1178619724 -C 1800 -W 3600 -M 1800 --output-limit 1,15 PBS4_SAT07v2 /tmp/evaluation/458188-1178619724/instance-458188-1178619724.opb 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 3600 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: 0.95 0.98 0.99 3/77 26895
/proc/meminfo: memFree=1778976/2055920 swapFree=4139064/4192956
[pid=26895] ppid=26893 vsize=1320 CPUtime=0
/proc/26895/stat : 26895 (PBS4_SAT07v2) R 26893 26895 26088 0 -1 4194304 141 0 0 0 0 0 0 0 18 0 1 0 338010152 1351680 123 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/26895/statm: 330 123 90 219 0 107 0

[startup+0.0584321 s]
/proc/loadavg: 0.95 0.98 0.99 3/77 26895
/proc/meminfo: memFree=1778976/2055920 swapFree=4139064/4192956
[pid=26895] ppid=26893 vsize=1320 CPUtime=0.05
/proc/26895/stat : 26895 (PBS4_SAT07v2) R 26893 26895 26088 0 -1 4194304 166 0 0 0 5 0 0 0 18 0 1 0 338010152 1351680 148 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/26895/statm: 330 148 90 219 0 107 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 1320

[startup+0.102438 s]
/proc/loadavg: 0.95 0.98 0.99 3/77 26895
/proc/meminfo: memFree=1778976/2055920 swapFree=4139064/4192956
[pid=26895] ppid=26893 vsize=1456 CPUtime=0.09
/proc/26895/stat : 26895 (PBS4_SAT07v2) R 26893 26895 26088 0 -1 4194304 193 0 0 0 9 0 0 0 18 0 1 0 338010152 1490944 175 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/26895/statm: 364 175 90 219 0 141 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1456

[startup+0.302471 s]
/proc/loadavg: 0.95 0.98 0.99 3/77 26895
/proc/meminfo: memFree=1778976/2055920 swapFree=4139064/4192956
[pid=26895] ppid=26893 vsize=1876 CPUtime=0.29
/proc/26895/stat : 26895 (PBS4_SAT07v2) R 26893 26895 26088 0 -1 4194304 301 0 0 0 29 0 0 0 19 0 1 0 338010152 1921024 283 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/26895/statm: 469 283 90 219 0 246 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1876

[startup+0.701537 s]
/proc/loadavg: 0.95 0.98 0.99 3/77 26895
/proc/meminfo: memFree=1778976/2055920 swapFree=4139064/4192956
[pid=26895] ppid=26893 vsize=3608 CPUtime=0.69
/proc/26895/stat : 26895 (PBS4_SAT07v2) R 26893 26895 26088 0 -1 4194304 527 0 0 0 68 1 0 0 22 0 1 0 338010152 3694592 509 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 134544746 0 0 4096 16384 0 0 0 17 1 0 0
/proc/26895/statm: 902 509 90 219 0 679 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3608

[startup+1.50167 s]
/proc/loadavg: 0.95 0.98 0.99 2/78 26896
/proc/meminfo: memFree=1776728/2055920 swapFree=4139064/4192956
[pid=26895] ppid=26893 vsize=3936 CPUtime=1.49
/proc/26895/stat : 26895 (PBS4_SAT07v2) R 26893 26895 26088 0 -1 4194304 849 0 0 0 148 1 0 0 25 0 1 0 338010152 4030464 782 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 134544783 0 0 4096 16384 0 0 0 17 1 0 0
/proc/26895/statm: 984 782 90 219 0 761 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 3936

[startup+3.10193 s]
/proc/loadavg: 0.95 0.98 0.99 2/78 26896
/proc/meminfo: memFree=1775256/2055920 swapFree=4139064/4192956
[pid=26895] ppid=26893 vsize=6776 CPUtime=3.09
/proc/26895/stat : 26895 (PBS4_SAT07v2) R 26893 26895 26088 0 -1 4194304 1404 0 0 0 307 2 0 0 25 0 1 0 338010152 6938624 1240 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/26895/statm: 1694 1240 90 219 0 1471 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 6776

[startup+6.30145 s]
/proc/loadavg: 0.95 0.98 0.99 2/78 26896
/proc/meminfo: memFree=1772120/2055920 swapFree=4139064/4192956
[pid=26895] ppid=26893 vsize=11404 CPUtime=6.29
/proc/26895/stat : 26895 (PBS4_SAT07v2) R 26893 26895 26088 0 -1 4194304 1949 0 0 0 626 3 0 0 25 0 1 0 338010152 11677696 1785 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 134547222 0 0 4096 16384 0 0 0 17 1 0 0
/proc/26895/statm: 2851 1785 90 219 0 2628 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 11404

[startup+12.7015 s]
/proc/loadavg: 0.96 0.98 0.99 2/78 26896
/proc/meminfo: memFree=1769112/2055920 swapFree=4139064/4192956
[pid=26895] ppid=26893 vsize=13012 CPUtime=12.69
/proc/26895/stat : 26895 (PBS4_SAT07v2) R 26893 26895 26088 0 -1 4194304 2922 0 0 0 1263 6 0 0 25 0 1 0 338010152 13324288 2565 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/26895/statm: 3253 2565 90 219 0 3030 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 13012

[startup+25.5016 s]
/proc/loadavg: 0.97 0.98 0.99 2/78 26896
/proc/meminfo: memFree=1764888/2055920 swapFree=4139064/4192956
[pid=26895] ppid=26893 vsize=24232 CPUtime=25.48
/proc/26895/stat : 26895 (PBS4_SAT07v2) R 26893 26895 26088 0 -1 4194304 4264 0 0 0 2539 9 0 0 25 0 1 0 338010152 24813568 3522 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 134547222 0 0 4096 16384 0 0 0 17 1 0 0
/proc/26895/statm: 6058 3522 90 219 0 5835 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 24232

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

[startup+38.3016 s]
/proc/loadavg: 0.97 0.98 0.99 2/78 26896
/proc/meminfo: memFree=1763160/2055920 swapFree=4139064/4192956
[pid=26895] ppid=26893 vsize=25408 CPUtime=38.28
/proc/26895/stat : 26895 (PBS4_SAT07v2) R 26893 26895 26088 0 -1 4194304 4701 0 0 0 3816 12 0 0 25 0 1 0 338010152 26017792 3959 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/26895/statm: 6352 3959 90 219 0 6129 0
Current children cumulated CPU time (s) 38.28
Current children cumulated vsize (KiB) 25408

[startup+41.5012 s]
/proc/loadavg: 0.97 0.98 0.99 2/78 26896
/proc/meminfo: memFree=1762776/2055920 swapFree=4139064/4192956
[pid=26895] ppid=26893 vsize=25784 CPUtime=41.48
/proc/26895/stat : 26895 (PBS4_SAT07v2) R 26893 26895 26088 0 -1 4194304 4812 0 0 0 4135 13 0 0 25 0 1 0 338010152 26402816 4070 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 134544806 0 0 4096 16384 0 0 0 17 1 0 0
/proc/26895/statm: 6446 4070 90 219 0 6223 0
Current children cumulated CPU time (s) 41.48
Current children cumulated vsize (KiB) 25784

[startup+44.7017 s]
/proc/loadavg: 0.97 0.98 0.99 2/78 26896
/proc/meminfo: memFree=1762264/2055920 swapFree=4139064/4192956
[pid=26895] ppid=26893 vsize=26080 CPUtime=44.68
/proc/26895/stat : 26895 (PBS4_SAT07v2) R 26893 26895 26088 0 -1 4194304 4941 0 0 0 4455 13 0 0 25 0 1 0 338010152 26705920 4199 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/26895/statm: 6520 4199 90 219 0 6297 0
Current children cumulated CPU time (s) 44.68
Current children cumulated vsize (KiB) 26080

[startup+45.5018 s]
/proc/loadavg: 0.97 0.98 0.99 2/78 26896
/proc/meminfo: memFree=1762136/2055920 swapFree=4139064/4192956
[pid=26895] ppid=26893 vsize=26080 CPUtime=45.48
/proc/26895/stat : 26895 (PBS4_SAT07v2) R 26893 26895 26088 0 -1 4194304 4949 0 0 0 4535 13 0 0 25 0 1 0 338010152 26705920 4207 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/26895/statm: 6520 4207 90 219 0 6297 0
Current children cumulated CPU time (s) 45.48
Current children cumulated vsize (KiB) 26080

[startup+45.9019 s]
/proc/loadavg: 0.97 0.98 0.99 2/78 26896
/proc/meminfo: memFree=1762136/2055920 swapFree=4139064/4192956
[pid=26895] ppid=26893 vsize=26080 CPUtime=45.87
/proc/26895/stat : 26895 (PBS4_SAT07v2) R 26893 26895 26088 0 -1 4194304 4953 0 0 0 4574 13 0 0 25 0 1 0 338010152 26705920 4211 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 134544687 0 0 4096 16384 0 0 0 17 1 0 0
/proc/26895/statm: 6520 4211 90 219 0 6297 0
Current children cumulated CPU time (s) 45.87
Current children cumulated vsize (KiB) 26080

[startup+46.3019 s]
/proc/loadavg: 0.97 0.98 0.99 2/78 26896
/proc/meminfo: memFree=1762072/2055920 swapFree=4139064/4192956
[pid=26895] ppid=26893 vsize=26080 CPUtime=46.27
/proc/26895/stat : 26895 (PBS4_SAT07v2) R 26893 26895 26088 0 -1 4194304 4957 0 0 0 4614 13 0 0 25 0 1 0 338010152 26705920 4215 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/26895/statm: 6520 4215 90 219 0 6297 0
Current children cumulated CPU time (s) 46.27
Current children cumulated vsize (KiB) 26080

Child status: 0
Real time (s): 46.3441
CPU time (s): 46.328
CPU user time (s): 46.185
CPU system time (s): 0.142978
CPU usage (%): 99.9653
Max. virtual memory (cumulated for all children) (KiB): 26080

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 46.185
system time used= 0.142978
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4974
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= 25

runsolver used 0.035994 second user time and 0.115982 second system time

The end

Launcher Data (download as text)

Begin job on node3 on Tue May  8 10:22:04 UTC 2007

IDJOB= 458188
IDBENCH= 1265
IDSOLVER= 200
FILE ID= node3/458188-1178619724

PBS_JOBID= 5217776

Free space on /tmp= 66562 MiB

SOLVER NAME= PBS4_v2 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1111228076.opb
COMMAND LINE= PBS4_SAT07v2 /tmp/evaluation/458188-1178619724/instance-458188-1178619724.opb
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node3/convwatcher-458188-1178619724 -o ROOT/results/node3/conversion-458188-1178619724 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/458188-1178619724/instance-458188-1178619724.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node3/watcher-458188-1178619724 -o ROOT/results/node3/solver-458188-1178619724 -C 1800 -W 3600 -M 1800 --output-limit 1,15  PBS4_SAT07v2 /tmp/evaluation/458188-1178619724/instance-458188-1178619724.opb

META MD5SUM SOLVER= 18cd8c68a4d3bfb01f29079966475a33
MD5SUM BENCH=  5e07f8b43a59b370ff10f0589c5144c8

RANDOM SEED= 625618450

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node3.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		: 3000.270
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		: 3000.270
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:       1779320 kB
Buffers:         37640 kB
Cached:         147732 kB
SwapCached:      16860 kB
Active:         100496 kB
Inactive:       108424 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1779320 kB
SwapTotal:     4192956 kB
SwapFree:      4139064 kB
Dirty:            2416 kB
Writeback:           0 kB
Mapped:          30356 kB
Slab:            53180 kB
Committed_AS: 11412076 kB
PageTables:       1780 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= 66562 MiB

End job on node3 on Tue May  8 10:22:51 UTC 2007