Trace number 358797

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 2007-03-23UNSAT 40.6788 40.694

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1110976730.opb
MD5SUM43d4c8496523b3f19caabfccdbd3abfa
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 benchmark0.151976
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 1183
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/358797-1176917642/instance-358797-1176917642.opb ......
40.58/40.68	c done parsing opb.
40.58/40.68	s UNSATISFIABLE
40.58/40.69	c Total Run Time					40.6718

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/358797-1176917642/instance-358797-1176917642.opb is already a linear file

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node42/watcher-358797-1176917642 -o ROOT/results/node42/solver-358797-1176917642 -C 1800 -W 3600 -M 1800 --output-limit 1,15 /tmp/evaluation/358797-1176917642/PBS4 /tmp/evaluation/358797-1176917642/instance-358797-1176917642.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 0.97 0.97 3/77 32281
/proc/meminfo: memFree=1898288/2055920 swapFree=4100536/4192956
[pid=32281] ppid=32279 vsize=1320 CPUtime=0
/proc/32281/stat : 32281 (PBS4) R 32279 32281 31919 0 -1 4194304 143 0 0 0 0 0 0 0 18 0 1 0 139676142 1351680 125 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32281/statm: 330 125 92 219 0 107 0

[startup+0.0744319 s]
/proc/loadavg: 0.95 0.97 0.97 3/77 32281
/proc/meminfo: memFree=1898288/2055920 swapFree=4100536/4192956
[pid=32281] ppid=32279 vsize=1456 CPUtime=0.07
/proc/32281/stat : 32281 (PBS4) R 32279 32281 31919 0 -1 4194304 201 0 0 0 7 0 0 0 18 0 1 0 139676142 1490944 183 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32281/statm: 364 183 92 219 0 141 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 1456

[startup+0.101437 s]
/proc/loadavg: 0.95 0.97 0.97 3/77 32281
/proc/meminfo: memFree=1898288/2055920 swapFree=4100536/4192956
[pid=32281] ppid=32279 vsize=1456 CPUtime=0.09
/proc/32281/stat : 32281 (PBS4) R 32279 32281 31919 0 -1 4194304 227 0 0 0 9 0 0 0 18 0 1 0 139676142 1490944 209 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32281/statm: 364 209 92 219 0 141 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1456

[startup+0.301473 s]
/proc/loadavg: 0.95 0.97 0.97 3/77 32281
/proc/meminfo: memFree=1898288/2055920 swapFree=4100536/4192956
[pid=32281] ppid=32279 vsize=2388 CPUtime=0.29
/proc/32281/stat : 32281 (PBS4) R 32279 32281 31919 0 -1 4194304 341 0 0 0 29 0 0 0 19 0 1 0 139676142 2445312 323 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32281/statm: 597 323 93 219 0 374 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2388

[startup+0.701551 s]
/proc/loadavg: 0.95 0.97 0.97 3/77 32281
/proc/meminfo: memFree=1898288/2055920 swapFree=4100536/4192956
[pid=32281] ppid=32279 vsize=3608 CPUtime=0.69
/proc/32281/stat : 32281 (PBS4) R 32279 32281 31919 0 -1 4194304 549 0 0 0 69 0 0 0 23 0 1 0 139676142 3694592 531 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32281/statm: 902 531 93 219 0 679 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3608

[startup+1.5017 s]
/proc/loadavg: 0.95 0.97 0.97 2/78 32282
/proc/meminfo: memFree=1896104/2055920 swapFree=4100536/4192956
[pid=32281] ppid=32279 vsize=5980 CPUtime=1.49
/proc/32281/stat : 32281 (PBS4) R 32279 32281 31919 0 -1 4194304 890 0 0 0 149 0 0 0 25 0 1 0 139676142 6123520 823 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32281/statm: 1495 823 94 219 0 1272 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 5980

[startup+3.10201 s]
/proc/loadavg: 0.95 0.97 0.97 2/78 32282
/proc/meminfo: memFree=1894632/2055920 swapFree=4100536/4192956
[pid=32281] ppid=32279 vsize=6772 CPUtime=3.09
/proc/32281/stat : 32281 (PBS4) R 32279 32281 31919 0 -1 4194304 1387 0 0 0 308 1 0 0 25 0 1 0 139676142 6934528 1223 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32281/statm: 1693 1223 94 219 0 1470 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 6772

[startup+6.30262 s]
/proc/loadavg: 0.95 0.97 0.97 2/78 32282
/proc/meminfo: memFree=1891696/2055920 swapFree=4100536/4192956
[pid=32281] ppid=32279 vsize=11412 CPUtime=6.29
/proc/32281/stat : 32281 (PBS4) R 32279 32281 31919 0 -1 4194304 2076 0 0 0 626 3 0 0 25 0 1 0 139676142 11685888 1912 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134559712 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32281/statm: 2853 1912 94 219 0 2630 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 11412

[startup+12.7018 s]
/proc/loadavg: 0.96 0.97 0.97 2/78 32282
/proc/meminfo: memFree=1887856/2055920 swapFree=4100536/4192956
[pid=32281] ppid=32279 vsize=13008 CPUtime=12.69
/proc/32281/stat : 32281 (PBS4) R 32279 32281 31919 0 -1 4194304 3066 0 0 0 1264 5 0 0 25 0 1 0 139676142 13320192 2709 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134549268 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32281/statm: 3252 2709 94 219 0 3029 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 13008

[startup+25.5013 s]
/proc/loadavg: 0.97 0.97 0.97 2/78 32282
/proc/meminfo: memFree=1884848/2055920 swapFree=4100536/4192956
[pid=32281] ppid=32279 vsize=16116 CPUtime=25.48
/proc/32281/stat : 32281 (PBS4) R 32279 32281 31919 0 -1 4194304 4133 0 0 0 2539 9 0 0 25 0 1 0 139676142 16502784 3391 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32281/statm: 4029 3391 94 219 0 3806 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 16116

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

[startup+31.9055 s]
/proc/loadavg: 1.05 0.99 0.98 2/78 32282
/proc/meminfo: memFree=1883504/2055920 swapFree=4100536/4192956
[pid=32281] ppid=32279 vsize=25044 CPUtime=31.89
/proc/32281/stat : 32281 (PBS4) R 32279 32281 31919 0 -1 4194304 4479 0 0 0 3178 11 0 0 25 0 1 0 139676142 25645056 3737 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32281/statm: 6261 3737 94 219 0 6038 0
Current children cumulated CPU time (s) 31.89
Current children cumulated vsize (KiB) 25044

[startup+35.1011 s]
/proc/loadavg: 1.04 0.99 0.98 2/78 32282
/proc/meminfo: memFree=1882608/2055920 swapFree=4100536/4192956
[pid=32281] ppid=32279 vsize=25204 CPUtime=35.08
/proc/32281/stat : 32281 (PBS4) R 32279 32281 31919 0 -1 4194304 4691 0 0 0 3497 11 0 0 25 0 1 0 139676142 25808896 3949 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32281/statm: 6301 3949 94 219 0 6078 0
Current children cumulated CPU time (s) 35.08
Current children cumulated vsize (KiB) 25204

[startup+38.3017 s]
/proc/loadavg: 1.04 0.99 0.98 2/78 32282
/proc/meminfo: memFree=1882160/2055920 swapFree=4100536/4192956
[pid=32281] ppid=32279 vsize=25932 CPUtime=38.27
/proc/32281/stat : 32281 (PBS4) R 32279 32281 31919 0 -1 4194304 4875 0 0 0 3815 12 0 0 25 0 1 0 139676142 26554368 4133 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32281/statm: 6483 4133 94 219 0 6260 0
Current children cumulated CPU time (s) 38.27
Current children cumulated vsize (KiB) 25932

[startup+39.902 s]
/proc/loadavg: 1.04 0.99 0.98 2/78 32282
/proc/meminfo: memFree=1881776/2055920 swapFree=4100536/4192956
[pid=32281] ppid=32279 vsize=25932 CPUtime=39.88
/proc/32281/stat : 32281 (PBS4) R 32279 32281 31919 0 -1 4194304 4901 0 0 0 3975 13 0 0 25 0 1 0 139676142 26554368 4159 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32281/statm: 6483 4159 94 219 0 6260 0
Current children cumulated CPU time (s) 39.88
Current children cumulated vsize (KiB) 25932

[startup+40.3011 s]
/proc/loadavg: 1.04 0.99 0.98 2/78 32282
/proc/meminfo: memFree=1881776/2055920 swapFree=4100536/4192956
[pid=32281] ppid=32279 vsize=25932 CPUtime=40.27
/proc/32281/stat : 32281 (PBS4) R 32279 32281 31919 0 -1 4194304 4905 0 0 0 4014 13 0 0 25 0 1 0 139676142 26554368 4163 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32281/statm: 6483 4163 94 219 0 6260 0
Current children cumulated CPU time (s) 40.27
Current children cumulated vsize (KiB) 25932

[startup+40.5011 s]
/proc/loadavg: 1.04 0.99 0.98 2/78 32282
/proc/meminfo: memFree=1881776/2055920 swapFree=4100536/4192956
[pid=32281] ppid=32279 vsize=25932 CPUtime=40.47
/proc/32281/stat : 32281 (PBS4) R 32279 32281 31919 0 -1 4194304 4907 0 0 0 4034 13 0 0 25 0 1 0 139676142 26554368 4165 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32281/statm: 6483 4165 94 219 0 6260 0
Current children cumulated CPU time (s) 40.47
Current children cumulated vsize (KiB) 25932

[startup+40.6011 s]
/proc/loadavg: 1.04 0.99 0.98 2/78 32282
/proc/meminfo: memFree=1881712/2055920 swapFree=4100536/4192956
[pid=32281] ppid=32279 vsize=25932 CPUtime=40.58
/proc/32281/stat : 32281 (PBS4) R 32279 32281 31919 0 -1 4194304 4908 0 0 0 4045 13 0 0 25 0 1 0 139676142 26554368 4166 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32281/statm: 6483 4166 94 219 0 6260 0
Current children cumulated CPU time (s) 40.58
Current children cumulated vsize (KiB) 25932

Child status: 0
Real time (s): 40.694
CPU time (s): 40.6788
CPU user time (s): 40.5358
CPU system time (s): 0.142978
CPU usage (%): 99.9627
Max. virtual memory (cumulated for all children) (KiB): 25932

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 40.5358
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= 4924
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= 845

runsolver used 0.054991 second user time and 0.100984 second system time

The end

Launcher Data (download as text)

Begin job on node42 on Wed Apr 18 17:34:02 UTC 2007

IDJOB= 358797
IDBENCH= 1240
IDSOLVER= 157
FILE ID= node42/358797-1176917642

PBS_JOBID= 4605628

Free space on /tmp= 66448 MiB

SOLVER NAME= PBS4 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1110976730.opb
COMMAND LINE= /tmp/evaluation/358797-1176917642/PBS4 /tmp/evaluation/358797-1176917642/instance-358797-1176917642.opb            
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node42/convwatcher-358797-1176917642 -o ROOT/results/node42/conversion-358797-1176917642 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/358797-1176917642/instance-358797-1176917642.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node42/watcher-358797-1176917642 -o ROOT/results/node42/solver-358797-1176917642 -C 1800 -W 3600 -M 1800 --output-limit 1,15  /tmp/evaluation/358797-1176917642/PBS4 /tmp/evaluation/358797-1176917642/instance-358797-1176917642.opb            

META MD5SUM SOLVER= b6c24e28fef9e1efa7891be58ea9e46f
MD5SUM BENCH=  43d4c8496523b3f19caabfccdbd3abfa

RANDOM SEED= 164047627

TIME LIMIT= 1800 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		: 3000.277
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		: 3000.277
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:       1898696 kB
Buffers:         20788 kB
Cached:          55300 kB
SwapCached:      17140 kB
Active:          53176 kB
Inactive:        53608 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1898696 kB
SwapTotal:     4192956 kB
SwapFree:      4100536 kB
Dirty:            1324 kB
Writeback:           0 kB
Mapped:          38840 kB
Slab:            35816 kB
Committed_AS:  2955212 kB
PageTables:       1912 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= 66448 MiB

End job on node42 on Wed Apr 18 17:34:43 UTC 2007