Trace number 358167

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 37.3863 37.4012

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1110972154.opb
MD5SUMc60ccfdf4fb13f80717cfb4db13af995
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 benchmark0.168974
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 1221
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/358167-1176913617/instance-358167-1176913617.opb ......
37.29/37.39	c done parsing opb.
37.29/37.39	s UNSATISFIABLE
37.29/37.39	c Total Run Time					37.3793

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/358167-1176913617/instance-358167-1176913617.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/node38/watcher-358167-1176913617 -o ROOT/results/node38/solver-358167-1176913617 -C 1800 -W 3600 -M 1800 --output-limit 1,15 /tmp/evaluation/358167-1176913617/PBS4 /tmp/evaluation/358167-1176913617/instance-358167-1176913617.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: 1.00 1.00 1.00 3/77 20973
/proc/meminfo: memFree=1425544/2055920 swapFree=4159700/4192956
[pid=20973] ppid=20971 vsize=1320 CPUtime=0
/proc/20973/stat : 20973 (PBS4) R 20971 20973 20233 0 -1 4194304 143 0 0 0 0 0 0 0 18 0 1 0 123528367 1351680 125 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20973/statm: 330 125 92 219 0 107 0

[startup+0.0487851 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 20973
/proc/meminfo: memFree=1425544/2055920 swapFree=4159700/4192956
[pid=20973] ppid=20971 vsize=1452 CPUtime=0.04
/proc/20973/stat : 20973 (PBS4) R 20971 20973 20233 0 -1 4194304 173 0 0 0 4 0 0 0 18 0 1 0 123528367 1486848 155 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20973/statm: 363 155 92 219 0 140 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 1452

[startup+0.101793 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 20973
/proc/meminfo: memFree=1425544/2055920 swapFree=4159700/4192956
[pid=20973] ppid=20971 vsize=1452 CPUtime=0.09
/proc/20973/stat : 20973 (PBS4) R 20971 20973 20233 0 -1 4194304 213 0 0 0 9 0 0 0 18 0 1 0 123528367 1486848 195 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20973/statm: 363 195 92 219 0 140 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1452

[startup+0.301832 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 20973
/proc/meminfo: memFree=1425544/2055920 swapFree=4159700/4192956
[pid=20973] ppid=20971 vsize=2388 CPUtime=0.29
/proc/20973/stat : 20973 (PBS4) R 20971 20973 20233 0 -1 4194304 328 0 0 0 29 0 0 0 19 0 1 0 123528367 2445312 310 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20973/statm: 597 310 93 219 0 374 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2388

[startup+0.701908 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 20973
/proc/meminfo: memFree=1425544/2055920 swapFree=4159700/4192956
[pid=20973] ppid=20971 vsize=3608 CPUtime=0.69
/proc/20973/stat : 20973 (PBS4) R 20971 20973 20233 0 -1 4194304 505 0 0 0 69 0 0 0 23 0 1 0 123528367 3694592 487 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20973/statm: 902 487 93 219 0 679 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3608

[startup+1.50106 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 20974
/proc/meminfo: memFree=1423488/2055920 swapFree=4159700/4192956
[pid=20973] ppid=20971 vsize=3932 CPUtime=1.49
/proc/20973/stat : 20973 (PBS4) R 20971 20973 20233 0 -1 4194304 869 0 0 0 148 1 0 0 25 0 1 0 123528367 4026368 802 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 134548082 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20973/statm: 983 803 94 219 0 760 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 3932

[startup+3.10137 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 20974
/proc/meminfo: memFree=1421760/2055920 swapFree=4159700/4192956
[pid=20973] ppid=20971 vsize=6776 CPUtime=3.09
/proc/20973/stat : 20973 (PBS4) R 20971 20973 20233 0 -1 4194304 1419 0 0 0 308 1 0 0 25 0 1 0 123528367 6938624 1255 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20973/statm: 1694 1255 94 219 0 1471 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 6776

[startup+6.30299 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 20974
/proc/meminfo: memFree=1418752/2055920 swapFree=4159700/4192956
[pid=20973] ppid=20971 vsize=11288 CPUtime=6.29
/proc/20973/stat : 20973 (PBS4) R 20971 20973 20233 0 -1 4194304 2070 0 0 0 626 3 0 0 25 0 1 0 123528367 11558912 1906 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20973/statm: 2822 1906 94 219 0 2599 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 11288

[startup+12.7012 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 20974
/proc/meminfo: memFree=1415488/2055920 swapFree=4159700/4192956
[pid=20973] ppid=20971 vsize=13212 CPUtime=12.69
/proc/20973/stat : 20973 (PBS4) R 20971 20973 20233 0 -1 4194304 2934 0 0 0 1264 5 0 0 25 0 1 0 123528367 13529088 2577 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20973/statm: 3303 2577 94 219 0 3080 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 13212

[startup+25.5017 s]
/proc/loadavg: 1.07 1.02 1.00 2/78 20974
/proc/meminfo: memFree=1411328/2055920 swapFree=4159700/4192956
[pid=20973] ppid=20971 vsize=24360 CPUtime=25.48
/proc/20973/stat : 20973 (PBS4) R 20971 20973 20233 0 -1 4194304 4347 0 0 0 2540 8 0 0 25 0 1 0 123528367 24944640 3605 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20973/statm: 6090 3605 94 219 0 5867 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 24360

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

[startup+31.9059 s]
/proc/loadavg: 1.06 1.02 1.00 2/78 20974
/proc/meminfo: memFree=1410496/2055920 swapFree=4159700/4192956
[pid=20973] ppid=20971 vsize=25092 CPUtime=31.88
/proc/20973/stat : 20973 (PBS4) R 20971 20973 20233 0 -1 4194304 4547 0 0 0 3179 9 0 0 25 0 1 0 123528367 25694208 3805 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20973/statm: 6273 3805 94 219 0 6050 0
Current children cumulated CPU time (s) 31.88
Current children cumulated vsize (KiB) 25092

[startup+35.1015 s]
/proc/loadavg: 1.06 1.02 1.00 2/78 20974
/proc/meminfo: memFree=1409792/2055920 swapFree=4159700/4192956
[pid=20973] ppid=20971 vsize=25548 CPUtime=35.09
/proc/20973/stat : 20973 (PBS4) R 20971 20973 20233 0 -1 4194304 4714 0 0 0 3499 10 0 0 25 0 1 0 123528367 26161152 3972 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20973/statm: 6387 3972 94 219 0 6164 0
Current children cumulated CPU time (s) 35.09
Current children cumulated vsize (KiB) 25548

[startup+36.7028 s]
/proc/loadavg: 1.06 1.01 1.00 2/78 20974
/proc/meminfo: memFree=1409792/2055920 swapFree=4159700/4192956
[pid=20973] ppid=20971 vsize=25548 CPUtime=36.68
/proc/20973/stat : 20973 (PBS4) R 20971 20973 20233 0 -1 4194304 4735 0 0 0 3658 10 0 0 25 0 1 0 123528367 26161152 3993 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20973/statm: 6387 3993 94 219 0 6164 0
Current children cumulated CPU time (s) 36.68
Current children cumulated vsize (KiB) 25548

[startup+37.1019 s]
/proc/loadavg: 1.06 1.01 1.00 2/78 20974
/proc/meminfo: memFree=1409792/2055920 swapFree=4159700/4192956
[pid=20973] ppid=20971 vsize=25548 CPUtime=37.08
/proc/20973/stat : 20973 (PBS4) R 20971 20973 20233 0 -1 4194304 4741 0 0 0 3698 10 0 0 25 0 1 0 123528367 26161152 3999 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 134559715 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20973/statm: 6387 3999 94 219 0 6164 0
Current children cumulated CPU time (s) 37.08
Current children cumulated vsize (KiB) 25548

[startup+37.3019 s]
/proc/loadavg: 1.06 1.01 1.00 2/78 20974
/proc/meminfo: memFree=1409728/2055920 swapFree=4159700/4192956
[pid=20973] ppid=20971 vsize=25548 CPUtime=37.29
/proc/20973/stat : 20973 (PBS4) R 20971 20973 20233 0 -1 4194304 4743 0 0 0 3719 10 0 0 25 0 1 0 123528367 26161152 4001 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 134547087 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20973/statm: 6387 4001 94 219 0 6164 0
Current children cumulated CPU time (s) 37.29
Current children cumulated vsize (KiB) 25548

Child status: 0
Real time (s): 37.4012
CPU time (s): 37.3863
CPU user time (s): 37.2823
CPU system time (s): 0.103984
CPU usage (%): 99.9603
Max. virtual memory (cumulated for all children) (KiB): 25548

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 37.2823
system time used= 0.103984
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4759
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= 689

runsolver used 0.036994 second user time and 0.107983 second system time

The end

Launcher Data (download as text)

Begin job on node38 on Wed Apr 18 16:26:57 UTC 2007

IDJOB= 358167
IDBENCH= 1195
IDSOLVER= 157
FILE ID= node38/358167-1176913617

PBS_JOBID= 4595223

Free space on /tmp= 66242 MiB

SOLVER NAME= PBS4 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1110972154.opb
COMMAND LINE= /tmp/evaluation/358167-1176913617/PBS4 /tmp/evaluation/358167-1176913617/instance-358167-1176913617.opb            
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node38/convwatcher-358167-1176913617 -o ROOT/results/node38/conversion-358167-1176913617 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/358167-1176913617/instance-358167-1176913617.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node38/watcher-358167-1176913617 -o ROOT/results/node38/solver-358167-1176913617 -C 1800 -W 3600 -M 1800 --output-limit 1,15  /tmp/evaluation/358167-1176913617/PBS4 /tmp/evaluation/358167-1176913617/instance-358167-1176913617.opb            

META MD5SUM SOLVER= b6c24e28fef9e1efa7891be58ea9e46f
MD5SUM BENCH=  c60ccfdf4fb13f80717cfb4db13af995

RANDOM SEED= 714660393

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node38.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:       1426016 kB
Buffers:         33040 kB
Cached:         493948 kB
SwapCached:       3208 kB
Active:         139564 kB
Inactive:       445720 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1426016 kB
SwapTotal:     4192956 kB
SwapFree:      4159700 kB
Dirty:            1156 kB
Writeback:           0 kB
Mapped:          66520 kB
Slab:            29812 kB
Committed_AS:  1507024 kB
PageTables:       2060 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= 66242 MiB

End job on node38 on Wed Apr 18 16:27:35 UTC 2007