Trace number 458101

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 11.1953 11.1995

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1110967729.opb
MD5SUMcc8a821eb6092a77df7c2a7d8a438de1
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 benchmark0.05799
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 1318
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/458101-1178619006/instance-458101-1178619006.opb ......
11.08/11.19	c done parsing opb.
11.08/11.19	s UNSATISFIABLE
11.08/11.19	c Total Run Time					11.1893

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/458101-1178619006/instance-458101-1178619006.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/node60/watcher-458101-1178619006 -o ROOT/results/node60/solver-458101-1178619006 -C 1800 -W 3600 -M 1800 --output-limit 1,15 PBS4_SAT07v2 /tmp/evaluation/458101-1178619006/instance-458101-1178619006.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: 0.99 1.00 1.00 3/64 11623
/proc/meminfo: memFree=1479568/2055920 swapFree=4183380/4192956
[pid=11623] ppid=11621 vsize=1320 CPUtime=0
/proc/11623/stat : 11623 (PBS4_SAT07v2) R 11621 11623 10817 0 -1 4194304 141 0 0 0 0 0 0 0 18 0 1 0 309810562 1351680 123 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134560376 0 0 4096 16384 0 0 0 17 1 0 0
/proc/11623/statm: 330 123 90 219 0 107 0

[startup+0.0475999 s]
/proc/loadavg: 0.99 1.00 1.00 3/64 11623
/proc/meminfo: memFree=1479568/2055920 swapFree=4183380/4192956
[pid=11623] ppid=11621 vsize=1320 CPUtime=0.04
/proc/11623/stat : 11623 (PBS4_SAT07v2) R 11621 11623 10817 0 -1 4194304 165 0 0 0 4 0 0 0 18 0 1 0 309810562 1351680 147 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/11623/statm: 330 147 90 219 0 107 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 1320

[startup+0.102605 s]
/proc/loadavg: 0.99 1.00 1.00 3/64 11623
/proc/meminfo: memFree=1479568/2055920 swapFree=4183380/4192956
[pid=11623] ppid=11621 vsize=1456 CPUtime=0.09
/proc/11623/stat : 11623 (PBS4_SAT07v2) R 11621 11623 10817 0 -1 4194304 199 0 0 0 9 0 0 0 18 0 1 0 309810562 1490944 181 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/11623/statm: 364 181 90 219 0 141 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1456

[startup+0.302624 s]
/proc/loadavg: 0.99 1.00 1.00 3/64 11623
/proc/meminfo: memFree=1479568/2055920 swapFree=4183380/4192956
[pid=11623] ppid=11621 vsize=1872 CPUtime=0.29
/proc/11623/stat : 11623 (PBS4_SAT07v2) R 11621 11623 10817 0 -1 4194304 301 0 0 0 29 0 0 0 19 0 1 0 309810562 1916928 283 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/11623/statm: 468 283 90 219 0 245 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1872

[startup+0.702666 s]
/proc/loadavg: 0.99 1.00 1.00 3/64 11623
/proc/meminfo: memFree=1479568/2055920 swapFree=4183380/4192956
[pid=11623] ppid=11621 vsize=3604 CPUtime=0.69
/proc/11623/stat : 11623 (PBS4_SAT07v2) R 11621 11623 10817 0 -1 4194304 502 0 0 0 69 0 0 0 23 0 1 0 309810562 3690496 484 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134557348 0 0 4096 16384 0 0 0 17 1 0 0
/proc/11623/statm: 901 484 90 219 0 678 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3604

[startup+1.50174 s]
/proc/loadavg: 0.99 1.00 1.00 2/65 11624
/proc/meminfo: memFree=1477512/2055920 swapFree=4183380/4192956
[pid=11623] ppid=11621 vsize=4064 CPUtime=1.49
/proc/11623/stat : 11623 (PBS4_SAT07v2) R 11621 11623 10817 0 -1 4194304 855 0 0 0 148 1 0 0 25 0 1 0 309810562 4161536 788 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134559203 0 0 4096 16384 0 0 0 17 1 0 0
/proc/11623/statm: 1016 788 90 219 0 793 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 4064

[startup+3.1019 s]
/proc/loadavg: 0.99 1.00 1.00 2/65 11624
/proc/meminfo: memFree=1476232/2055920 swapFree=4183380/4192956
[pid=11623] ppid=11621 vsize=6768 CPUtime=3.09
/proc/11623/stat : 11623 (PBS4_SAT07v2) R 11621 11623 10817 0 -1 4194304 1158 0 0 0 307 2 0 0 25 0 1 0 309810562 6930432 994 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/11623/statm: 1692 994 90 219 0 1469 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 6768

[startup+6.30121 s]
/proc/loadavg: 0.99 1.00 1.00 2/65 11624
/proc/meminfo: memFree=1474568/2055920 swapFree=4183380/4192956
[pid=11623] ppid=11621 vsize=7448 CPUtime=6.29
/proc/11623/stat : 11623 (PBS4_SAT07v2) R 11621 11623 10817 0 -1 4194304 1613 0 0 0 626 3 0 0 25 0 1 0 309810562 7626752 1449 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/11623/statm: 1862 1449 90 219 0 1639 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 7448

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

[startup+9.50153 s]
/proc/loadavg: 0.99 1.00 1.00 2/65 11624
/proc/meminfo: memFree=1473096/2055920 swapFree=4183380/4192956
[pid=11623] ppid=11621 vsize=8684 CPUtime=9.49
/proc/11623/stat : 11623 (PBS4_SAT07v2) R 11621 11623 10817 0 -1 4194304 2034 0 0 0 945 4 0 0 25 0 1 0 309810562 8892416 1677 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/11623/statm: 2171 1677 90 219 0 1948 0
Current children cumulated CPU time (s) 9.49
Current children cumulated vsize (KiB) 8684

[startup+10.3016 s]
/proc/loadavg: 0.99 1.00 1.00 2/65 11624
/proc/meminfo: memFree=1472840/2055920 swapFree=4183380/4192956
[pid=11623] ppid=11621 vsize=8976 CPUtime=10.28
/proc/11623/stat : 11623 (PBS4_SAT07v2) R 11621 11623 10817 0 -1 4194304 2164 0 0 0 1024 4 0 0 25 0 1 0 309810562 9191424 1807 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/11623/statm: 2244 1807 90 219 0 2021 0
Current children cumulated CPU time (s) 10.28
Current children cumulated vsize (KiB) 8976

[startup+10.7016 s]
/proc/loadavg: 0.99 1.00 1.00 2/65 11624
/proc/meminfo: memFree=1472840/2055920 swapFree=4183380/4192956
[pid=11623] ppid=11621 vsize=8976 CPUtime=10.68
/proc/11623/stat : 11623 (PBS4_SAT07v2) R 11621 11623 10817 0 -1 4194304 2176 0 0 0 1064 4 0 0 25 0 1 0 309810562 9191424 1819 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/11623/statm: 2244 1819 90 219 0 2021 0
Current children cumulated CPU time (s) 10.68
Current children cumulated vsize (KiB) 8976

[startup+11.1017 s]
/proc/loadavg: 0.99 1.00 1.00 2/65 11624
/proc/meminfo: memFree=1472328/2055920 swapFree=4183380/4192956
[pid=11623] ppid=11621 vsize=9120 CPUtime=11.08
/proc/11623/stat : 11623 (PBS4_SAT07v2) R 11621 11623 10817 0 -1 4194304 2207 0 0 0 1104 4 0 0 25 0 1 0 309810562 9338880 1850 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/11623/statm: 2280 1850 90 219 0 2057 0
Current children cumulated CPU time (s) 11.08
Current children cumulated vsize (KiB) 9120

Child status: 0
Real time (s): 11.1995
CPU time (s): 11.1953
CPU user time (s): 11.1443
CPU system time (s): 0.050992
CPU usage (%): 99.9624
Max. virtual memory (cumulated for all children) (KiB): 9120

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 11.1443
system time used= 0.050992
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2226
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= 8
involuntary context switches= 14

runsolver used 0.008998 second user time and 0.029995 second system time

The end

Launcher Data (download as text)

Begin job on node60 on Tue May  8 10:10:06 UTC 2007

IDJOB= 458101
IDBENCH= 1178
IDSOLVER= 200
FILE ID= node60/458101-1178619006

PBS_JOBID= 5218240

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-t2001.13queen13.1110967729.opb
COMMAND LINE= PBS4_SAT07v2 /tmp/evaluation/458101-1178619006/instance-458101-1178619006.opb
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node60/convwatcher-458101-1178619006 -o ROOT/results/node60/conversion-458101-1178619006 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/458101-1178619006/instance-458101-1178619006.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node60/watcher-458101-1178619006 -o ROOT/results/node60/solver-458101-1178619006 -C 1800 -W 3600 -M 1800 --output-limit 1,15  PBS4_SAT07v2 /tmp/evaluation/458101-1178619006/instance-458101-1178619006.opb

META MD5SUM SOLVER= 18cd8c68a4d3bfb01f29079966475a33
MD5SUM BENCH=  cc8a821eb6092a77df7c2a7d8a438de1

RANDOM SEED= 436063238

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node60.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		: 3000.214
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		: 3000.214
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:       1479976 kB
Buffers:         35240 kB
Cached:         417080 kB
SwapCached:       3620 kB
Active:         172588 kB
Inactive:       289768 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1479976 kB
SwapTotal:     4192956 kB
SwapFree:      4183380 kB
Dirty:            2396 kB
Writeback:           0 kB
Mapped:          16076 kB
Slab:            99544 kB
Committed_AS:  5302240 kB
PageTables:       1464 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 node60 on Tue May  8 10:10:17 UTC 2007