Trace number 358601

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 34.6607 34.815

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1110968561.opb
MD5SUM6bd9689edc69ff7a2c6dd91eed3e12f3
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 benchmark0.555914
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 1247
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/358601-1176916525/instance-358601-1176916525.opb ......
34.58/34.66	c done parsing opb.
34.58/34.66	s UNSATISFIABLE
34.58/34.66	c Total Run Time					34.6537

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/358601-1176916525/instance-358601-1176916525.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/node26/watcher-358601-1176916525 -o ROOT/results/node26/solver-358601-1176916525 -C 1800 -W 3600 -M 1800 --output-limit 1,15 /tmp/evaluation/358601-1176916525/PBS4 /tmp/evaluation/358601-1176916525/instance-358601-1176916525.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: 0.84 0.94 0.98 3/77 18612
/proc/meminfo: memFree=1216720/2055920 swapFree=4170240/4192956
[pid=18612] ppid=18610 vsize=1320 CPUtime=0
/proc/18612/stat : 18612 (PBS4) R 18610 18612 17836 0 -1 4194304 143 0 0 0 0 0 0 0 18 0 1 0 139569365 1351680 125 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/18612/statm: 330 125 92 219 0 107 0

[startup+0.015109 s]
/proc/loadavg: 0.84 0.94 0.98 3/77 18612
/proc/meminfo: memFree=1216720/2055920 swapFree=4170240/4192956
[pid=18612] ppid=18610 vsize=1320 CPUtime=0.01
/proc/18612/stat : 18612 (PBS4) R 18610 18612 17836 0 -1 4194304 153 0 0 0 1 0 0 0 18 0 1 0 139569365 1351680 135 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/18612/statm: 330 135 92 219 0 107 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 1320

[startup+0.101116 s]
/proc/loadavg: 0.84 0.94 0.98 3/77 18612
/proc/meminfo: memFree=1216720/2055920 swapFree=4170240/4192956
[pid=18612] ppid=18610 vsize=1456 CPUtime=0.09
/proc/18612/stat : 18612 (PBS4) R 18610 18612 17836 0 -1 4194304 210 0 0 0 9 0 0 0 18 0 1 0 139569365 1490944 192 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/18612/statm: 364 192 92 219 0 141 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1456

[startup+0.301134 s]
/proc/loadavg: 0.84 0.94 0.98 3/77 18612
/proc/meminfo: memFree=1216720/2055920 swapFree=4170240/4192956
[pid=18612] ppid=18610 vsize=2388 CPUtime=0.29
/proc/18612/stat : 18612 (PBS4) R 18610 18612 17836 0 -1 4194304 326 0 0 0 29 0 0 0 19 0 1 0 139569365 2445312 308 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 134559830 0 0 4096 16384 0 0 0 17 1 0 0
/proc/18612/statm: 597 308 93 219 0 374 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2388

[startup+0.701172 s]
/proc/loadavg: 0.84 0.94 0.98 3/77 18612
/proc/meminfo: memFree=1216720/2055920 swapFree=4170240/4192956
[pid=18612] ppid=18610 vsize=2584 CPUtime=0.69
/proc/18612/stat : 18612 (PBS4) R 18610 18612 17836 0 -1 4194304 491 0 0 0 69 0 0 0 23 0 1 0 139569365 2646016 473 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 134590670 0 0 4096 16384 0 0 0 17 1 0 0
/proc/18612/statm: 646 473 93 219 0 423 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 2584

[startup+1.50125 s]
/proc/loadavg: 0.84 0.94 0.98 2/78 18613
/proc/meminfo: memFree=1214728/2055920 swapFree=4170240/4192956
[pid=18612] ppid=18610 vsize=3936 CPUtime=1.48
/proc/18612/stat : 18612 (PBS4) R 18610 18612 17836 0 -1 4194304 844 0 0 0 148 0 0 0 25 0 1 0 139569365 4030464 777 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/18612/statm: 984 777 94 219 0 761 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 3936

[startup+3.10139 s]
/proc/loadavg: 0.84 0.94 0.98 2/78 18613
/proc/meminfo: memFree=1213064/2055920 swapFree=4170240/4192956
[pid=18612] ppid=18610 vsize=6768 CPUtime=3.09
/proc/18612/stat : 18612 (PBS4) R 18610 18612 17836 0 -1 4194304 1310 0 0 0 308 1 0 0 25 0 1 0 139569365 6930432 1146 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/18612/statm: 1692 1146 94 219 0 1469 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 6768

[startup+6.30169 s]
/proc/loadavg: 0.85 0.94 0.98 2/78 18613
/proc/meminfo: memFree=1209736/2055920 swapFree=4170240/4192956
[pid=18612] ppid=18610 vsize=11536 CPUtime=6.29
/proc/18612/stat : 18612 (PBS4) R 18610 18612 17836 0 -1 4194304 2108 0 0 0 626 3 0 0 25 0 1 0 139569365 11812864 1944 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/18612/statm: 2884 1944 94 219 0 2661 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 11536

[startup+12.7013 s]
/proc/loadavg: 0.87 0.94 0.98 2/78 18613
/proc/meminfo: memFree=1205832/2055920 swapFree=4170240/4192956
[pid=18612] ppid=18610 vsize=13284 CPUtime=12.69
/proc/18612/stat : 18612 (PBS4) R 18610 18612 17836 0 -1 4194304 3122 0 0 0 1264 5 0 0 25 0 1 0 139569365 13602816 2765 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/18612/statm: 3321 2765 94 219 0 3098 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 13284

[startup+25.5015 s]
/proc/loadavg: 0.89 0.94 0.98 2/78 18613
/proc/meminfo: memFree=1202184/2055920 swapFree=4170240/4192956
[pid=18612] ppid=18610 vsize=24688 CPUtime=25.48
/proc/18612/stat : 18612 (PBS4) R 18610 18612 17836 0 -1 4194304 4405 0 0 0 2539 9 0 0 25 0 1 0 139569365 25280512 3663 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 134559805 0 0 4096 16384 0 0 0 17 1 0 0
/proc/18612/statm: 6172 3663 94 219 0 5949 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 24688

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

[startup+28.7018 s]
/proc/loadavg: 0.89 0.94 0.98 2/78 18613
/proc/meminfo: memFree=1201608/2055920 swapFree=4170240/4192956
[pid=18612] ppid=18610 vsize=25200 CPUtime=28.68
/proc/18612/stat : 18612 (PBS4) R 18610 18612 17836 0 -1 4194304 4540 0 0 0 2859 9 0 0 25 0 1 0 139569365 25804800 3798 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 134547071 0 0 4096 16384 0 0 0 17 1 0 0
/proc/18612/statm: 6300 3798 94 219 0 6077 0
Current children cumulated CPU time (s) 28.68
Current children cumulated vsize (KiB) 25200

[startup+31.9051 s]
/proc/loadavg: 0.90 0.94 0.98 2/78 18613
/proc/meminfo: memFree=1201096/2055920 swapFree=4170240/4192956
[pid=18612] ppid=18610 vsize=25340 CPUtime=31.88
/proc/18612/stat : 18612 (PBS4) R 18610 18612 17836 0 -1 4194304 4665 0 0 0 3178 10 0 0 25 0 1 0 139569365 25948160 3923 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 134547084 0 0 4096 16384 0 0 0 17 1 0 0
/proc/18612/statm: 6335 3923 94 219 0 6112 0
Current children cumulated CPU time (s) 31.88
Current children cumulated vsize (KiB) 25340

[startup+33.5012 s]
/proc/loadavg: 0.90 0.94 0.98 2/78 18613
/proc/meminfo: memFree=1200904/2055920 swapFree=4170240/4192956
[pid=18612] ppid=18610 vsize=25708 CPUtime=33.48
/proc/18612/stat : 18612 (PBS4) R 18610 18612 17836 0 -1 4194304 4746 0 0 0 3337 11 0 0 25 0 1 0 139569365 26324992 4004 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/18612/statm: 6427 4004 94 219 0 6204 0
Current children cumulated CPU time (s) 33.48
Current children cumulated vsize (KiB) 25708

[startup+34.3013 s]
/proc/loadavg: 0.91 0.94 0.98 2/78 18613
/proc/meminfo: memFree=1200776/2055920 swapFree=4170240/4192956
[pid=18612] ppid=18610 vsize=25708 CPUtime=34.28
/proc/18612/stat : 18612 (PBS4) R 18610 18612 17836 0 -1 4194304 4755 0 0 0 3417 11 0 0 25 0 1 0 139569365 26324992 4013 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/18612/statm: 6427 4013 94 219 0 6204 0
Current children cumulated CPU time (s) 34.28
Current children cumulated vsize (KiB) 25708

[startup+34.7013 s]
/proc/loadavg: 0.91 0.94 0.98 2/78 18613
/proc/meminfo: memFree=1200776/2055920 swapFree=4170240/4192956
[pid=18612] ppid=18610 vsize=0 CPUtime=34.65
/proc/18612/stat : 18612 (PBS4) D 18610 18612 17836 0 -1 4194308 4774 0 0 0 3454 11 0 0 24 0 1 0 139569365 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 16384 18446744072100051646 0 0 17 0 0 0
/proc/18612/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 34.65
Current children cumulated vsize (KiB) 0

[startup+34.8013 s]
/proc/loadavg: 0.91 0.94 0.98 2/78 18613
/proc/meminfo: memFree=1200776/2055920 swapFree=4170240/4192956
[pid=18612] ppid=18610 vsize=0 CPUtime=34.65
/proc/18612/stat : 18612 (PBS4) D 18610 18612 17836 0 -1 4194308 4774 0 0 0 3454 11 0 0 24 0 1 0 139569365 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 16384 18446744072100051646 0 0 17 0 0 0
/proc/18612/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 34.65
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 34.815
CPU time (s): 34.6607
CPU user time (s): 34.5408
CPU system time (s): 0.119981
CPU usage (%): 99.5569
Max. virtual memory (cumulated for all children) (KiB): 25708

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 34.5407
system time used= 0.119981
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4774
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= 71

runsolver used 0.048992 second user time and 0.080987 second system time

The end

Launcher Data (download as text)

Begin job on node26 on Wed Apr 18 17:15:25 UTC 2007

IDJOB= 358601
IDBENCH= 1226
IDSOLVER= 157
FILE ID= node26/358601-1176916525

PBS_JOBID= 4595243

Free space on /tmp= 66435 MiB

SOLVER NAME= PBS4 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1110968561.opb
COMMAND LINE= /tmp/evaluation/358601-1176916525/PBS4 /tmp/evaluation/358601-1176916525/instance-358601-1176916525.opb            
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node26/convwatcher-358601-1176916525 -o ROOT/results/node26/conversion-358601-1176916525 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/358601-1176916525/instance-358601-1176916525.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node26/watcher-358601-1176916525 -o ROOT/results/node26/solver-358601-1176916525 -C 1800 -W 3600 -M 1800 --output-limit 1,15  /tmp/evaluation/358601-1176916525/PBS4 /tmp/evaluation/358601-1176916525/instance-358601-1176916525.opb            

META MD5SUM SOLVER= b6c24e28fef9e1efa7891be58ea9e46f
MD5SUM BENCH=  6bd9689edc69ff7a2c6dd91eed3e12f3

RANDOM SEED= 643680462

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node26.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:       1217128 kB
Buffers:         37920 kB
Cached:         720788 kB
SwapCached:       3232 kB
Active:         276996 kB
Inactive:       504736 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1217128 kB
SwapTotal:     4192956 kB
SwapFree:      4170240 kB
Dirty:            1328 kB
Writeback:           0 kB
Mapped:          30492 kB
Slab:            42688 kB
Committed_AS:   993928 kB
PageTables:       1716 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= 66435 MiB

End job on node26 on Wed Apr 18 17:16:01 UTC 2007