Trace number 458111

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 22.5576 22.5641

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111220546.opb
MD5SUMaeab1724c196459c6b33e6369a15ae92
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 benchmark0.441932
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 1248
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/458111-1178619096/instance-458111-1178619096.opb ......
22.49/22.56	c done parsing opb.
22.49/22.56	s UNSATISFIABLE
22.49/22.56	c Total Run Time					22.5506

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/458111-1178619096/instance-458111-1178619096.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-458111-1178619096 -o ROOT/results/node60/solver-458111-1178619096 -C 1800 -W 3600 -M 1800 --output-limit 1,15 PBS4_SAT07v2 /tmp/evaluation/458111-1178619096/instance-458111-1178619096.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: 0.97 0.98 0.99 3/64 11878
/proc/meminfo: memFree=1479312/2055920 swapFree=4183380/4192956
[pid=11878] ppid=11876 vsize=1320 CPUtime=0
/proc/11878/stat : 11878 (PBS4_SAT07v2) R 11876 11878 10817 0 -1 4194304 141 0 0 0 0 0 0 0 18 0 1 0 309819587 1351680 123 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134545659 0 0 4096 16384 0 0 0 17 1 0 0
/proc/11878/statm: 330 123 90 219 0 107 0

[startup+0.087496 s]
/proc/loadavg: 0.97 0.98 0.99 3/64 11878
/proc/meminfo: memFree=1479312/2055920 swapFree=4183380/4192956
[pid=11878] ppid=11876 vsize=1456 CPUtime=0.08
/proc/11878/stat : 11878 (PBS4_SAT07v2) R 11876 11878 10817 0 -1 4194304 200 0 0 0 8 0 0 0 18 0 1 0 309819587 1490944 182 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/11878/statm: 364 182 90 219 0 141 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 1456

[startup+0.101496 s]
/proc/loadavg: 0.97 0.98 0.99 3/64 11878
/proc/meminfo: memFree=1479312/2055920 swapFree=4183380/4192956
[pid=11878] ppid=11876 vsize=1456 CPUtime=0.09
/proc/11878/stat : 11878 (PBS4_SAT07v2) R 11876 11878 10817 0 -1 4194304 216 0 0 0 9 0 0 0 18 0 1 0 309819587 1490944 198 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/11878/statm: 364 198 90 219 0 141 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1456

[startup+0.301516 s]
/proc/loadavg: 0.97 0.98 0.99 3/64 11878
/proc/meminfo: memFree=1479312/2055920 swapFree=4183380/4192956
[pid=11878] ppid=11876 vsize=2376 CPUtime=0.29
/proc/11878/stat : 11878 (PBS4_SAT07v2) R 11876 11878 10817 0 -1 4194304 332 0 0 0 29 0 0 0 19 0 1 0 309819587 2433024 314 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/11878/statm: 594 314 90 219 0 371 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2376

[startup+0.701554 s]
/proc/loadavg: 0.97 0.98 0.99 3/64 11878
/proc/meminfo: memFree=1479312/2055920 swapFree=4183380/4192956
[pid=11878] ppid=11876 vsize=3596 CPUtime=0.69
/proc/11878/stat : 11878 (PBS4_SAT07v2) R 11876 11878 10817 0 -1 4194304 559 0 0 0 69 0 0 0 22 0 1 0 309819587 3682304 541 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/11878/statm: 899 541 90 219 0 676 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3596

[startup+1.50163 s]
/proc/loadavg: 0.97 0.98 0.99 2/65 11879
/proc/meminfo: memFree=1477064/2055920 swapFree=4183380/4192956
[pid=11878] ppid=11876 vsize=6100 CPUtime=1.49
/proc/11878/stat : 11878 (PBS4_SAT07v2) R 11876 11878 10817 0 -1 4194304 941 0 0 0 148 1 0 0 25 0 1 0 309819587 6246400 874 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/11878/statm: 1525 874 90 219 0 1302 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 6100

[startup+3.10179 s]
/proc/loadavg: 0.97 0.98 0.99 2/65 11879
/proc/meminfo: memFree=1475208/2055920 swapFree=4183380/4192956
[pid=11878] ppid=11876 vsize=6880 CPUtime=3.09
/proc/11878/stat : 11878 (PBS4_SAT07v2) R 11876 11878 10817 0 -1 4194304 1494 0 0 0 307 2 0 0 25 0 1 0 309819587 7045120 1330 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/11878/statm: 1720 1330 90 219 0 1497 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 6880

[startup+6.30111 s]
/proc/loadavg: 0.97 0.98 0.99 2/65 11879
/proc/meminfo: memFree=1472392/2055920 swapFree=4183380/4192956
[pid=11878] ppid=11876 vsize=11516 CPUtime=6.29
/proc/11878/stat : 11878 (PBS4_SAT07v2) R 11876 11878 10817 0 -1 4194304 2092 0 0 0 626 3 0 0 25 0 1 0 309819587 11792384 1928 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/11878/statm: 2879 1928 90 219 0 2656 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 11516

[startup+12.7017 s]
/proc/loadavg: 0.98 0.98 0.99 2/65 11879
/proc/meminfo: memFree=1469704/2055920 swapFree=4183380/4192956
[pid=11878] ppid=11876 vsize=13144 CPUtime=12.69
/proc/11878/stat : 11878 (PBS4_SAT07v2) R 11876 11878 10817 0 -1 4194304 2819 0 0 0 1264 5 0 0 25 0 1 0 309819587 13459456 2462 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134544744 0 0 4096 16384 0 0 0 17 1 0 0
/proc/11878/statm: 3286 2462 90 219 0 3063 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 13144

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

[startup+19.1014 s]
/proc/loadavg: 0.98 0.98 0.99 2/65 11879
/proc/meminfo: memFree=1467784/2055920 swapFree=4183380/4192956
[pid=11878] ppid=11876 vsize=13868 CPUtime=19.09
/proc/11878/stat : 11878 (PBS4_SAT07v2) R 11876 11878 10817 0 -1 4194304 3269 0 0 0 1903 6 0 0 25 0 1 0 309819587 14200832 2912 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/11878/statm: 3467 2912 90 219 0 3244 0
Current children cumulated CPU time (s) 19.09
Current children cumulated vsize (KiB) 13868

[startup+20.7015 s]
/proc/loadavg: 0.98 0.98 0.99 2/65 11879
/proc/meminfo: memFree=1467336/2055920 swapFree=4183380/4192956
[pid=11878] ppid=11876 vsize=15724 CPUtime=20.68
/proc/11878/stat : 11878 (PBS4_SAT07v2) R 11876 11878 10817 0 -1 4194304 3745 0 0 0 2062 6 0 0 25 0 1 0 309819587 16101376 3003 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134544904 0 0 4096 16384 0 0 0 17 1 0 0
/proc/11878/statm: 3931 3003 90 219 0 3708 0
Current children cumulated CPU time (s) 20.68
Current children cumulated vsize (KiB) 15724

[startup+21.5026 s]
/proc/loadavg: 0.98 0.98 0.99 2/65 11879
/proc/meminfo: memFree=1467336/2055920 swapFree=4183380/4192956
[pid=11878] ppid=11876 vsize=16036 CPUtime=21.48
/proc/11878/stat : 11878 (PBS4_SAT07v2) R 11876 11878 10817 0 -1 4194304 3831 0 0 0 2142 6 0 0 25 0 1 0 309819587 16420864 3089 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/11878/statm: 4009 3089 90 219 0 3786 0
Current children cumulated CPU time (s) 21.48
Current children cumulated vsize (KiB) 16036

[startup+22.3017 s]
/proc/loadavg: 0.98 0.98 0.99 2/65 11879
/proc/meminfo: memFree=1466952/2055920 swapFree=4183380/4192956
[pid=11878] ppid=11876 vsize=16036 CPUtime=22.29
/proc/11878/stat : 11878 (PBS4_SAT07v2) R 11876 11878 10817 0 -1 4194304 3920 0 0 0 2222 7 0 0 25 0 1 0 309819587 16420864 3178 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/11878/statm: 4009 3178 90 219 0 3786 0
Current children cumulated CPU time (s) 22.29
Current children cumulated vsize (KiB) 16036

[startup+22.5017 s]
/proc/loadavg: 0.98 0.98 0.99 2/65 11879
/proc/meminfo: memFree=1466952/2055920 swapFree=4183380/4192956
[pid=11878] ppid=11876 vsize=16036 CPUtime=22.49
/proc/11878/stat : 11878 (PBS4_SAT07v2) R 11876 11878 10817 0 -1 4194304 3945 0 0 0 2242 7 0 0 25 0 1 0 309819587 16420864 3203 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/11878/statm: 4009 3203 90 219 0 3786 0
Current children cumulated CPU time (s) 22.49
Current children cumulated vsize (KiB) 16036

Child status: 0
Real time (s): 22.5641
CPU time (s): 22.5576
CPU user time (s): 22.4796
CPU system time (s): 0.077988
CPU usage (%): 99.971
Max. virtual memory (cumulated for all children) (KiB): 16036

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 22.4796
system time used= 0.077988
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3972
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= 28

runsolver used 0.021996 second user time and 0.046992 second system time

The end

Launcher Data (download as text)

Begin job on node60 on Tue May  8 10:11:36 UTC 2007

IDJOB= 458111
IDBENCH= 1188
IDSOLVER= 200
FILE ID= node60/458111-1178619096

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-t2001.13queen13.1111220546.opb
COMMAND LINE= PBS4_SAT07v2 /tmp/evaluation/458111-1178619096/instance-458111-1178619096.opb
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node60/convwatcher-458111-1178619096 -o ROOT/results/node60/conversion-458111-1178619096 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/458111-1178619096/instance-458111-1178619096.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node60/watcher-458111-1178619096 -o ROOT/results/node60/solver-458111-1178619096 -C 1800 -W 3600 -M 1800 --output-limit 1,15  PBS4_SAT07v2 /tmp/evaluation/458111-1178619096/instance-458111-1178619096.opb

META MD5SUM SOLVER= 18cd8c68a4d3bfb01f29079966475a33
MD5SUM BENCH=  aeab1724c196459c6b33e6369a15ae92

RANDOM SEED= 430070248

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:       1479784 kB
Buffers:         35352 kB
Cached:         417240 kB
SwapCached:       3620 kB
Active:         172780 kB
Inactive:       289880 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1479784 kB
SwapTotal:     4192956 kB
SwapFree:      4183380 kB
Dirty:            2256 kB
Writeback:           0 kB
Mapped:          16076 kB
Slab:            99532 kB
Committed_AS:  5302320 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 10:11:59 UTC 2007