Trace number 458144

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 34.0918 34.1013

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1110967523.opb
MD5SUM5cdd8cb1372de7a07cb58778faffedf0
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 benchmark1.07084
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 1188
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/458144-1178619451/instance-458144-1178619451.opb ......
33.99/34.09	c done parsing opb.
33.99/34.09	s UNSATISFIABLE
33.99/34.09	c Total Run Time					34.0838

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/458144-1178619451/instance-458144-1178619451.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/node50/watcher-458144-1178619451 -o ROOT/results/node50/solver-458144-1178619451 -C 1800 -W 3600 -M 1800 --output-limit 1,15 PBS4_SAT07v2 /tmp/evaluation/458144-1178619451/instance-458144-1178619451.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: 0.91 0.99 0.99 3/64 3881
/proc/meminfo: memFree=1809200/2055920 swapFree=4183852/4192956
[pid=3881] ppid=3879 vsize=1320 CPUtime=0
/proc/3881/stat : 3881 (PBS4_SAT07v2) R 3879 3881 2663 0 -1 4194304 141 0 0 0 0 0 0 0 18 0 1 0 216790304 1351680 123 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3881/statm: 330 123 90 219 0 107 0

[startup+0.059394 s]
/proc/loadavg: 0.91 0.99 0.99 3/64 3881
/proc/meminfo: memFree=1809200/2055920 swapFree=4183852/4192956
[pid=3881] ppid=3879 vsize=1456 CPUtime=0.05
/proc/3881/stat : 3881 (PBS4_SAT07v2) R 3879 3881 2663 0 -1 4194304 182 0 0 0 5 0 0 0 18 0 1 0 216790304 1490944 164 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3881/statm: 364 164 90 219 0 141 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 1456

[startup+0.101397 s]
/proc/loadavg: 0.91 0.99 0.99 3/64 3881
/proc/meminfo: memFree=1809200/2055920 swapFree=4183852/4192956
[pid=3881] ppid=3879 vsize=1456 CPUtime=0.09
/proc/3881/stat : 3881 (PBS4_SAT07v2) R 3879 3881 2663 0 -1 4194304 220 0 0 0 9 0 0 0 18 0 1 0 216790304 1490944 202 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3881/statm: 364 202 90 219 0 141 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1456

[startup+0.301414 s]
/proc/loadavg: 0.91 0.99 0.99 3/64 3881
/proc/meminfo: memFree=1809200/2055920 swapFree=4183852/4192956
[pid=3881] ppid=3879 vsize=2392 CPUtime=0.29
/proc/3881/stat : 3881 (PBS4_SAT07v2) R 3879 3881 2663 0 -1 4194304 351 0 0 0 29 0 0 0 19 0 1 0 216790304 2449408 333 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3881/statm: 598 333 90 219 0 375 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2392

[startup+0.701449 s]
/proc/loadavg: 0.91 0.99 0.99 3/64 3881
/proc/meminfo: memFree=1809200/2055920 swapFree=4183852/4192956
[pid=3881] ppid=3879 vsize=3612 CPUtime=0.69
/proc/3881/stat : 3881 (PBS4_SAT07v2) R 3879 3881 2663 0 -1 4194304 554 0 0 0 69 0 0 0 22 0 1 0 216790304 3698688 536 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3881/statm: 903 536 90 219 0 680 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3612

[startup+1.50152 s]
/proc/loadavg: 0.91 0.99 0.99 2/65 3882
/proc/meminfo: memFree=1806888/2055920 swapFree=4183852/4192956
[pid=3881] ppid=3879 vsize=5984 CPUtime=1.49
/proc/3881/stat : 3881 (PBS4_SAT07v2) R 3879 3881 2663 0 -1 4194304 896 0 0 0 149 0 0 0 25 0 1 0 216790304 6127616 829 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3881/statm: 1496 829 90 219 0 1273 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 5984

[startup+3.10266 s]
/proc/loadavg: 0.91 0.99 0.99 2/65 3882
/proc/meminfo: memFree=1805544/2055920 swapFree=4183852/4192956
[pid=3881] ppid=3879 vsize=6764 CPUtime=3.09
/proc/3881/stat : 3881 (PBS4_SAT07v2) R 3879 3881 2663 0 -1 4194304 1373 0 0 0 308 1 0 0 25 0 1 0 216790304 6926336 1209 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3881/statm: 1691 1209 90 219 0 1468 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 6764

[startup+6.30194 s]
/proc/loadavg: 0.92 0.99 0.99 2/65 3882
/proc/meminfo: memFree=1802408/2055920 swapFree=4183852/4192956
[pid=3881] ppid=3879 vsize=11540 CPUtime=6.29
/proc/3881/stat : 3881 (PBS4_SAT07v2) R 3879 3881 2663 0 -1 4194304 1951 0 0 0 627 2 0 0 25 0 1 0 216790304 11816960 1787 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3881/statm: 2885 1787 90 219 0 2662 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 11540

[startup+12.7015 s]
/proc/loadavg: 0.92 0.99 0.99 2/65 3882
/proc/meminfo: memFree=1800104/2055920 swapFree=4183852/4192956
[pid=3881] ppid=3879 vsize=13140 CPUtime=12.69
/proc/3881/stat : 3881 (PBS4_SAT07v2) R 3879 3881 2663 0 -1 4194304 2754 0 0 0 1265 4 0 0 25 0 1 0 216790304 13455360 2397 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134547216 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3881/statm: 3285 2397 90 219 0 3062 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 13140

[startup+25.5016 s]
/proc/loadavg: 0.94 0.99 0.99 2/65 3882
/proc/meminfo: memFree=1795624/2055920 swapFree=4183852/4192956
[pid=3881] ppid=3879 vsize=16204 CPUtime=25.48
/proc/3881/stat : 3881 (PBS4_SAT07v2) R 3879 3881 2663 0 -1 4194304 4166 0 0 0 2540 8 0 0 25 0 1 0 216790304 16592896 3424 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3881/statm: 4051 3424 90 219 0 3828 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 16204

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

[startup+28.7029 s]
/proc/loadavg: 0.94 0.99 0.99 2/65 3882
/proc/meminfo: memFree=1795048/2055920 swapFree=4183852/4192956
[pid=3881] ppid=3879 vsize=16664 CPUtime=28.69
/proc/3881/stat : 3881 (PBS4_SAT07v2) R 3879 3881 2663 0 -1 4194304 4307 0 0 0 2859 10 0 0 25 0 1 0 216790304 17063936 3565 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3881/statm: 4166 3565 90 219 0 3943 0
Current children cumulated CPU time (s) 28.69
Current children cumulated vsize (KiB) 16664

[startup+31.9052 s]
/proc/loadavg: 0.94 0.99 0.99 2/65 3882
/proc/meminfo: memFree=1794536/2055920 swapFree=4183852/4192956
[pid=3881] ppid=3879 vsize=16824 CPUtime=31.88
/proc/3881/stat : 3881 (PBS4_SAT07v2) R 3879 3881 2663 0 -1 4194304 4416 0 0 0 3178 10 0 0 25 0 1 0 216790304 17227776 3674 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3881/statm: 4206 3674 90 219 0 3983 0
Current children cumulated CPU time (s) 31.88
Current children cumulated vsize (KiB) 16824

[startup+32.7013 s]
/proc/loadavg: 0.94 0.99 0.99 2/65 3882
/proc/meminfo: memFree=1794536/2055920 swapFree=4183852/4192956
[pid=3881] ppid=3879 vsize=17096 CPUtime=32.69
/proc/3881/stat : 3881 (PBS4_SAT07v2) R 3879 3881 2663 0 -1 4194304 4464 0 0 0 3258 11 0 0 25 0 1 0 216790304 17506304 3722 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3881/statm: 4274 3722 90 219 0 4051 0
Current children cumulated CPU time (s) 32.69
Current children cumulated vsize (KiB) 17096

[startup+33.5013 s]
/proc/loadavg: 0.94 0.99 0.99 2/65 3882
/proc/meminfo: memFree=1794344/2055920 swapFree=4183852/4192956
[pid=3881] ppid=3879 vsize=17096 CPUtime=33.48
/proc/3881/stat : 3881 (PBS4_SAT07v2) R 3879 3881 2663 0 -1 4194304 4472 0 0 0 3337 11 0 0 25 0 1 0 216790304 17506304 3730 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134544896 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3881/statm: 4274 3730 90 219 0 4051 0
Current children cumulated CPU time (s) 33.48
Current children cumulated vsize (KiB) 17096

[startup+33.9014 s]
/proc/loadavg: 0.94 0.99 0.99 2/65 3882
/proc/meminfo: memFree=1794344/2055920 swapFree=4183852/4192956
[pid=3881] ppid=3879 vsize=17096 CPUtime=33.88
/proc/3881/stat : 3881 (PBS4_SAT07v2) R 3879 3881 2663 0 -1 4194304 4479 0 0 0 3377 11 0 0 25 0 1 0 216790304 17506304 3737 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3881/statm: 4274 3737 90 219 0 4051 0
Current children cumulated CPU time (s) 33.88
Current children cumulated vsize (KiB) 17096

[startup+34.0014 s]
/proc/loadavg: 0.94 0.99 0.99 2/65 3882
/proc/meminfo: memFree=1794280/2055920 swapFree=4183852/4192956
[pid=3881] ppid=3879 vsize=17096 CPUtime=33.99
/proc/3881/stat : 3881 (PBS4_SAT07v2) R 3879 3881 2663 0 -1 4194304 4480 0 0 0 3388 11 0 0 25 0 1 0 216790304 17506304 3738 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134556992 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3881/statm: 4274 3738 90 219 0 4051 0
Current children cumulated CPU time (s) 33.99
Current children cumulated vsize (KiB) 17096

Child status: 0
Real time (s): 34.1013
CPU time (s): 34.0918
CPU user time (s): 33.9758
CPU system time (s): 0.115982
CPU usage (%): 99.9721
Max. virtual memory (cumulated for all children) (KiB): 17096

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 33.9758
system time used= 0.115982
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4498
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= 66

runsolver used 0.033994 second user time and 0.066989 second system time

The end

Launcher Data (download as text)

Begin job on node50 on Tue May  8 10:17:31 UTC 2007

IDJOB= 458144
IDBENCH= 1221
IDSOLVER= 200
FILE ID= node50/458144-1178619451

PBS_JOBID= 5218236

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-t2001.13queen13.1110967523.opb
COMMAND LINE= PBS4_SAT07v2 /tmp/evaluation/458144-1178619451/instance-458144-1178619451.opb
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node50/convwatcher-458144-1178619451 -o ROOT/results/node50/conversion-458144-1178619451 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/458144-1178619451/instance-458144-1178619451.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node50/watcher-458144-1178619451 -o ROOT/results/node50/solver-458144-1178619451 -C 1800 -W 3600 -M 1800 --output-limit 1,15  PBS4_SAT07v2 /tmp/evaluation/458144-1178619451/instance-458144-1178619451.opb

META MD5SUM SOLVER= 18cd8c68a4d3bfb01f29079966475a33
MD5SUM BENCH=  5cdd8cb1372de7a07cb58778faffedf0

RANDOM SEED= 280249662

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node50.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		: 3000.232
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		: 3000.232
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:       1809608 kB
Buffers:         18384 kB
Cached:         134100 kB
SwapCached:       3032 kB
Active:          34312 kB
Inactive:       128516 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1809608 kB
SwapTotal:     4192956 kB
SwapFree:      4183852 kB
Dirty:            2256 kB
Writeback:           0 kB
Mapped:          16452 kB
Slab:            69464 kB
Committed_AS:  4938976 kB
PageTables:       1460 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 node50 on Tue May  8 10:18:06 UTC 2007