Trace number 458163

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 40.6188 40.6313

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1110976730.opb
MD5SUM43d4c8496523b3f19caabfccdbd3abfa
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 benchmark0.151976
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 1183
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/458163-1178619598/instance-458163-1178619598.opb ......
40.58/40.62	c done parsing opb.
40.58/40.62	s UNSATISFIABLE
40.58/40.62	c Total Run Time					40.6108

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/458163-1178619598/instance-458163-1178619598.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/node41/watcher-458163-1178619598 -o ROOT/results/node41/solver-458163-1178619598 -C 1800 -W 3600 -M 1800 --output-limit 1,15 PBS4_SAT07v2 /tmp/evaluation/458163-1178619598/instance-458163-1178619598.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: 0.89 0.97 0.99 3/77 24598
/proc/meminfo: memFree=1503048/2055920 swapFree=4169412/4192956
[pid=24598] ppid=24596 vsize=1320 CPUtime=0
/proc/24598/stat : 24598 (PBS4_SAT07v2) R 24596 24598 23489 0 -1 4194304 141 0 0 0 0 0 0 0 18 0 1 0 309871666 1351680 123 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24598/statm: 330 123 90 219 0 107 0

[startup+0.087454 s]
/proc/loadavg: 0.89 0.97 0.99 3/77 24598
/proc/meminfo: memFree=1503048/2055920 swapFree=4169412/4192956
[pid=24598] ppid=24596 vsize=1456 CPUtime=0.08
/proc/24598/stat : 24598 (PBS4_SAT07v2) R 24596 24598 23489 0 -1 4194304 209 0 0 0 8 0 0 0 18 0 1 0 309871666 1490944 191 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24598/statm: 364 191 90 219 0 141 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 1456

[startup+0.102454 s]
/proc/loadavg: 0.89 0.97 0.99 3/77 24598
/proc/meminfo: memFree=1503048/2055920 swapFree=4169412/4192956
[pid=24598] ppid=24596 vsize=1456 CPUtime=0.09
/proc/24598/stat : 24598 (PBS4_SAT07v2) R 24596 24598 23489 0 -1 4194304 226 0 0 0 9 0 0 0 18 0 1 0 309871666 1490944 208 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134594427 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24598/statm: 364 209 90 219 0 141 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1456

[startup+0.302475 s]
/proc/loadavg: 0.89 0.97 0.99 3/77 24598
/proc/meminfo: memFree=1503048/2055920 swapFree=4169412/4192956
[pid=24598] ppid=24596 vsize=2388 CPUtime=0.29
/proc/24598/stat : 24598 (PBS4_SAT07v2) R 24596 24598 23489 0 -1 4194304 338 0 0 0 29 0 0 0 19 0 1 0 309871666 2445312 320 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134544960 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24598/statm: 597 320 90 219 0 374 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2388

[startup+0.702506 s]
/proc/loadavg: 0.89 0.97 0.99 3/77 24598
/proc/meminfo: memFree=1503048/2055920 swapFree=4169412/4192956
[pid=24598] ppid=24596 vsize=3608 CPUtime=0.69
/proc/24598/stat : 24598 (PBS4_SAT07v2) R 24596 24598 23489 0 -1 4194304 544 0 0 0 69 0 0 0 23 0 1 0 309871666 3694592 526 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134549556 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24598/statm: 902 526 90 219 0 679 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3608

[startup+1.50157 s]
/proc/loadavg: 0.90 0.97 0.99 2/78 24599
/proc/meminfo: memFree=1500800/2055920 swapFree=4169412/4192956
[pid=24598] ppid=24596 vsize=5980 CPUtime=1.49
/proc/24598/stat : 24598 (PBS4_SAT07v2) R 24596 24598 23489 0 -1 4194304 881 0 0 0 148 1 0 0 25 0 1 0 309871666 6123520 814 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134557204 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24598/statm: 1495 814 90 219 0 1272 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 5980

[startup+3.10172 s]
/proc/loadavg: 0.90 0.97 0.99 2/78 24599
/proc/meminfo: memFree=1499328/2055920 swapFree=4169412/4192956
[pid=24598] ppid=24596 vsize=6772 CPUtime=3.09
/proc/24598/stat : 24598 (PBS4_SAT07v2) R 24596 24598 23489 0 -1 4194304 1377 0 0 0 307 2 0 0 25 0 1 0 309871666 6934528 1213 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24598/statm: 1693 1213 90 219 0 1470 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 6772

[startup+6.30199 s]
/proc/loadavg: 0.90 0.97 0.99 2/78 24599
/proc/meminfo: memFree=1496384/2055920 swapFree=4169412/4192956
[pid=24598] ppid=24596 vsize=11412 CPUtime=6.29
/proc/24598/stat : 24598 (PBS4_SAT07v2) R 24596 24598 23489 0 -1 4194304 2067 0 0 0 625 4 0 0 25 0 1 0 309871666 11685888 1903 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24598/statm: 2853 1903 90 219 0 2630 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 11412

[startup+12.7015 s]
/proc/loadavg: 0.91 0.97 0.99 2/78 24599
/proc/meminfo: memFree=1492480/2055920 swapFree=4169412/4192956
[pid=24598] ppid=24596 vsize=13300 CPUtime=12.69
/proc/24598/stat : 24598 (PBS4_SAT07v2) R 24596 24598 23489 0 -1 4194304 3099 0 0 0 1262 7 0 0 25 0 1 0 309871666 13619200 2742 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134547376 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24598/statm: 3325 2742 90 219 0 3102 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 13300

[startup+25.5017 s]
/proc/loadavg: 0.93 0.97 0.99 2/78 24599
/proc/meminfo: memFree=1489472/2055920 swapFree=4169412/4192956
[pid=24598] ppid=24596 vsize=16116 CPUtime=25.49
/proc/24598/stat : 24598 (PBS4_SAT07v2) R 24596 24598 23489 0 -1 4194304 4130 0 0 0 2537 12 0 0 25 0 1 0 309871666 16502784 3388 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24598/statm: 4029 3388 90 219 0 3806 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 16116

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

[startup+31.9052 s]
/proc/loadavg: 0.94 0.97 0.99 2/78 24599
/proc/meminfo: memFree=1488128/2055920 swapFree=4169412/4192956
[pid=24598] ppid=24596 vsize=25044 CPUtime=31.88
/proc/24598/stat : 24598 (PBS4_SAT07v2) R 24596 24598 23489 0 -1 4194304 4486 0 0 0 3175 13 0 0 25 0 1 0 309871666 25645056 3744 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134588758 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24598/statm: 6261 3744 90 219 0 6038 0
Current children cumulated CPU time (s) 31.88
Current children cumulated vsize (KiB) 25044

[startup+35.1015 s]
/proc/loadavg: 0.94 0.97 0.99 2/78 24599
/proc/meminfo: memFree=1487232/2055920 swapFree=4169412/4192956
[pid=24598] ppid=24596 vsize=25204 CPUtime=35.08
/proc/24598/stat : 24598 (PBS4_SAT07v2) R 24596 24598 23489 0 -1 4194304 4688 0 0 0 3494 14 0 0 25 0 1 0 309871666 25808896 3946 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24598/statm: 6301 3946 90 219 0 6078 0
Current children cumulated CPU time (s) 35.08
Current children cumulated vsize (KiB) 25204

[startup+38.3018 s]
/proc/loadavg: 0.94 0.97 0.99 2/78 24599
/proc/meminfo: memFree=1486784/2055920 swapFree=4169412/4192956
[pid=24598] ppid=24596 vsize=25932 CPUtime=38.28
/proc/24598/stat : 24598 (PBS4_SAT07v2) R 24596 24598 23489 0 -1 4194304 4872 0 0 0 3813 15 0 0 25 0 1 0 309871666 26554368 4130 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24598/statm: 6483 4130 90 219 0 6260 0
Current children cumulated CPU time (s) 38.28
Current children cumulated vsize (KiB) 25932

[startup+39.9019 s]
/proc/loadavg: 0.94 0.97 0.99 2/78 24599
/proc/meminfo: memFree=1486400/2055920 swapFree=4169412/4192956
[pid=24598] ppid=24596 vsize=25932 CPUtime=39.88
/proc/24598/stat : 24598 (PBS4_SAT07v2) R 24596 24598 23489 0 -1 4194304 4898 0 0 0 3973 15 0 0 25 0 1 0 309871666 26554368 4156 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134548665 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24598/statm: 6483 4156 90 219 0 6260 0
Current children cumulated CPU time (s) 39.88
Current children cumulated vsize (KiB) 25932

[startup+40.3019 s]
/proc/loadavg: 0.94 0.97 0.99 2/78 24599
/proc/meminfo: memFree=1486400/2055920 swapFree=4169412/4192956
[pid=24598] ppid=24596 vsize=25932 CPUtime=40.28
/proc/24598/stat : 24598 (PBS4_SAT07v2) R 24596 24598 23489 0 -1 4194304 4902 0 0 0 4013 15 0 0 25 0 1 0 309871666 26554368 4160 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24598/statm: 6483 4160 90 219 0 6260 0
Current children cumulated CPU time (s) 40.28
Current children cumulated vsize (KiB) 25932

[startup+40.502 s]
/proc/loadavg: 0.94 0.97 0.99 2/78 24599
/proc/meminfo: memFree=1486400/2055920 swapFree=4169412/4192956
[pid=24598] ppid=24596 vsize=25932 CPUtime=40.48
/proc/24598/stat : 24598 (PBS4_SAT07v2) R 24596 24598 23489 0 -1 4194304 4903 0 0 0 4033 15 0 0 25 0 1 0 309871666 26554368 4161 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24598/statm: 6483 4161 90 219 0 6260 0
Current children cumulated CPU time (s) 40.48
Current children cumulated vsize (KiB) 25932

[startup+40.602 s]
/proc/loadavg: 0.95 0.97 0.99 2/78 24599
/proc/meminfo: memFree=1486336/2055920 swapFree=4169412/4192956
[pid=24598] ppid=24596 vsize=25932 CPUtime=40.58
/proc/24598/stat : 24598 (PBS4_SAT07v2) R 24596 24598 23489 0 -1 4194304 4905 0 0 0 4043 15 0 0 25 0 1 0 309871666 26554368 4163 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134544750 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24598/statm: 6483 4163 90 219 0 6260 0
Current children cumulated CPU time (s) 40.58
Current children cumulated vsize (KiB) 25932

Child status: 0
Real time (s): 40.6313
CPU time (s): 40.6188
CPU user time (s): 40.4608
CPU system time (s): 0.157975
CPU usage (%): 99.9693
Max. virtual memory (cumulated for all children) (KiB): 25932

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 40.4608
system time used= 0.157975
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4922
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= 854

runsolver used 0.037994 second user time and 0.093985 second system time

The end

Launcher Data (download as text)

Begin job on node41 on Tue May  8 10:19:58 UTC 2007

IDJOB= 458163
IDBENCH= 1240
IDSOLVER= 200
FILE ID= node41/458163-1178619598

PBS_JOBID= 5218237

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-t2001.13queen13.1110976730.opb
COMMAND LINE= PBS4_SAT07v2 /tmp/evaluation/458163-1178619598/instance-458163-1178619598.opb
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node41/convwatcher-458163-1178619598 -o ROOT/results/node41/conversion-458163-1178619598 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/458163-1178619598/instance-458163-1178619598.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node41/watcher-458163-1178619598 -o ROOT/results/node41/solver-458163-1178619598 -C 1800 -W 3600 -M 1800 --output-limit 1,15  PBS4_SAT07v2 /tmp/evaluation/458163-1178619598/instance-458163-1178619598.opb

META MD5SUM SOLVER= 18cd8c68a4d3bfb01f29079966475a33
MD5SUM BENCH=  43d4c8496523b3f19caabfccdbd3abfa

RANDOM SEED= 43556643

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node41.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:       1503456 kB
Buffers:         40412 kB
Cached:         387228 kB
SwapCached:       3072 kB
Active:         142608 kB
Inactive:       309488 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1503456 kB
SwapTotal:     4192956 kB
SwapFree:      4169412 kB
Dirty:            2436 kB
Writeback:           0 kB
Mapped:          31936 kB
Slab:            85712 kB
Committed_AS:  8578024 kB
PageTables:       2008 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 node41 on Tue May  8 10:20:39 UTC 2007