Trace number 358321

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 21.5137 21.5219

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111224451.opb
MD5SUM0df4a6220c19cfaf8dc35e55531bf2a0
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 benchmark0.160974
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 1261
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/358321-1176914595/instance-358321-1176914595.opb ......
21.49/21.51	c done parsing opb.
21.49/21.51	s UNSATISFIABLE
21.49/21.51	c Total Run Time					21.5067

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/358321-1176914595/instance-358321-1176914595.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/node43/watcher-358321-1176914595 -o ROOT/results/node43/solver-358321-1176914595 -C 1800 -W 3600 -M 1800 --output-limit 1,15 /tmp/evaluation/358321-1176914595/PBS4 /tmp/evaluation/358321-1176914595/instance-358321-1176914595.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 1.06 1.01 3/77 30919
/proc/meminfo: memFree=673872/2055920 swapFree=4184648/4192956
[pid=30919] ppid=30917 vsize=1320 CPUtime=0
/proc/30919/stat : 30919 (PBS4) R 30917 30919 29908 0 -1 4194304 143 0 0 0 0 0 0 0 18 0 1 0 139371289 1351680 125 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/30919/statm: 330 125 92 219 0 107 0

[startup+0.0682979 s]
/proc/loadavg: 0.97 1.06 1.01 3/77 30919
/proc/meminfo: memFree=673872/2055920 swapFree=4184648/4192956
[pid=30919] ppid=30917 vsize=1452 CPUtime=0.06
/proc/30919/stat : 30919 (PBS4) R 30917 30919 29908 0 -1 4194304 185 0 0 0 6 0 0 0 18 0 1 0 139371289 1486848 167 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/30919/statm: 363 167 92 219 0 140 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 1452

[startup+0.101299 s]
/proc/loadavg: 0.97 1.06 1.01 3/77 30919
/proc/meminfo: memFree=673872/2055920 swapFree=4184648/4192956
[pid=30919] ppid=30917 vsize=1452 CPUtime=0.09
/proc/30919/stat : 30919 (PBS4) R 30917 30919 29908 0 -1 4194304 212 0 0 0 9 0 0 0 18 0 1 0 139371289 1486848 194 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/30919/statm: 363 194 92 219 0 140 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1452

[startup+0.301317 s]
/proc/loadavg: 0.97 1.06 1.01 3/77 30919
/proc/meminfo: memFree=673872/2055920 swapFree=4184648/4192956
[pid=30919] ppid=30917 vsize=2388 CPUtime=0.29
/proc/30919/stat : 30919 (PBS4) R 30917 30919 29908 0 -1 4194304 319 0 0 0 29 0 0 0 19 0 1 0 139371289 2445312 301 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/30919/statm: 597 301 93 219 0 374 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2388

[startup+0.701352 s]
/proc/loadavg: 0.97 1.06 1.01 3/77 30919
/proc/meminfo: memFree=673872/2055920 swapFree=4184648/4192956
[pid=30919] ppid=30917 vsize=2584 CPUtime=0.69
/proc/30919/stat : 30919 (PBS4) R 30917 30919 29908 0 -1 4194304 494 0 0 0 69 0 0 0 23 0 1 0 139371289 2646016 476 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/30919/statm: 646 476 93 219 0 423 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 2584

[startup+1.50142 s]
/proc/loadavg: 0.98 1.06 1.01 2/78 30920
/proc/meminfo: memFree=671816/2055920 swapFree=4184648/4192956
[pid=30919] ppid=30917 vsize=3932 CPUtime=1.49
/proc/30919/stat : 30919 (PBS4) R 30917 30919 29908 0 -1 4194304 871 0 0 0 148 1 0 0 25 0 1 0 139371289 4026368 804 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/30919/statm: 983 804 94 219 0 760 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 3932

[startup+3.10256 s]
/proc/loadavg: 0.98 1.06 1.01 2/78 30920
/proc/meminfo: memFree=669896/2055920 swapFree=4184648/4192956
[pid=30919] ppid=30917 vsize=6760 CPUtime=3.09
/proc/30919/stat : 30919 (PBS4) R 30917 30919 29908 0 -1 4194304 1384 0 0 0 307 2 0 0 25 0 1 0 139371289 6922240 1220 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 134559624 0 0 4096 16384 0 0 0 17 1 0 0
/proc/30919/statm: 1690 1220 94 219 0 1467 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 6760

[startup+6.30184 s]
/proc/loadavg: 0.98 1.06 1.01 2/78 30920
/proc/meminfo: memFree=667536/2055920 swapFree=4184648/4192956
[pid=30919] ppid=30917 vsize=11408 CPUtime=6.29
/proc/30919/stat : 30919 (PBS4) R 30917 30919 29908 0 -1 4194304 1908 0 0 0 626 3 0 0 25 0 1 0 139371289 11681792 1744 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/30919/statm: 2852 1744 94 219 0 2629 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 11408

[startup+12.7014 s]
/proc/loadavg: 0.98 1.05 1.01 2/78 30920
/proc/meminfo: memFree=665232/2055920 swapFree=4184648/4192956
[pid=30919] ppid=30917 vsize=13152 CPUtime=12.69
/proc/30919/stat : 30919 (PBS4) R 30917 30919 29908 0 -1 4194304 2534 0 0 0 1264 5 0 0 25 0 1 0 139371289 13467648 2177 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/30919/statm: 3288 2177 94 219 0 3065 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 13152

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

[startup+15.9017 s]
/proc/loadavg: 0.98 1.05 1.01 2/78 30920
/proc/meminfo: memFree=664336/2055920 swapFree=4184648/4192956
[pid=30919] ppid=30917 vsize=13620 CPUtime=15.89
/proc/30919/stat : 30919 (PBS4) R 30917 30919 29908 0 -1 4194304 2827 0 0 0 1583 6 0 0 25 0 1 0 139371289 13946880 2470 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/30919/statm: 3405 2470 94 219 0 3182 0
Current children cumulated CPU time (s) 15.89
Current children cumulated vsize (KiB) 13620

[startup+19.1019 s]
/proc/loadavg: 0.98 1.05 1.01 2/78 30920
/proc/meminfo: memFree=663056/2055920 swapFree=4184648/4192956
[pid=30919] ppid=30917 vsize=15820 CPUtime=19.08
/proc/30919/stat : 30919 (PBS4) R 30917 30919 29908 0 -1 4194304 3486 0 0 0 1901 7 0 0 25 0 1 0 139371289 16199680 2744 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/30919/statm: 3955 2744 94 219 0 3732 0
Current children cumulated CPU time (s) 19.08
Current children cumulated vsize (KiB) 15820

[startup+20.7011 s]
/proc/loadavg: 0.98 1.05 1.01 2/78 30920
/proc/meminfo: memFree=662864/2055920 swapFree=4184648/4192956
[pid=30919] ppid=30917 vsize=15820 CPUtime=20.69
/proc/30919/stat : 30919 (PBS4) R 30917 30919 29908 0 -1 4194304 3535 0 0 0 2061 8 0 0 25 0 1 0 139371289 16199680 2793 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/30919/statm: 3955 2793 94 219 0 3732 0
Current children cumulated CPU time (s) 20.69
Current children cumulated vsize (KiB) 15820

[startup+21.1011 s]
/proc/loadavg: 0.98 1.05 1.01 2/78 30920
/proc/meminfo: memFree=662736/2055920 swapFree=4184648/4192956
[pid=30919] ppid=30917 vsize=15820 CPUtime=21.09
/proc/30919/stat : 30919 (PBS4) R 30917 30919 29908 0 -1 4194304 3553 0 0 0 2101 8 0 0 25 0 1 0 139371289 16199680 2811 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 134547154 0 0 4096 16384 0 0 0 17 1 0 0
/proc/30919/statm: 3955 2811 94 219 0 3732 0
Current children cumulated CPU time (s) 21.09
Current children cumulated vsize (KiB) 15820

[startup+21.5012 s]
/proc/loadavg: 0.98 1.05 1.01 2/78 30920
/proc/meminfo: memFree=662736/2055920 swapFree=4184648/4192956
[pid=30919] ppid=30917 vsize=15820 CPUtime=21.49
/proc/30919/stat : 30919 (PBS4) R 30917 30919 29908 0 -1 4194304 3562 0 0 0 2141 8 0 0 25 0 1 0 139371289 16199680 2820 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/30919/statm: 3955 2820 94 219 0 3732 0
Current children cumulated CPU time (s) 21.49
Current children cumulated vsize (KiB) 15820

Child status: 0
Real time (s): 21.5219
CPU time (s): 21.5137
CPU user time (s): 21.4287
CPU system time (s): 0.084987
CPU usage (%): 99.9622
Max. virtual memory (cumulated for all children) (KiB): 15820

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 21.4287
system time used= 0.084987
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3578
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= 53

runsolver used 0.031995 second user time and 0.048992 second system time

The end

Launcher Data (download as text)

Begin job on node43 on Wed Apr 18 16:43:15 UTC 2007

IDJOB= 358321
IDBENCH= 1206
IDSOLVER= 157
FILE ID= node43/358321-1176914595

PBS_JOBID= 4595229

Free space on /tmp= 66434 MiB

SOLVER NAME= PBS4 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1111224451.opb
COMMAND LINE= /tmp/evaluation/358321-1176914595/PBS4 /tmp/evaluation/358321-1176914595/instance-358321-1176914595.opb            
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node43/convwatcher-358321-1176914595 -o ROOT/results/node43/conversion-358321-1176914595 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/358321-1176914595/instance-358321-1176914595.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node43/watcher-358321-1176914595 -o ROOT/results/node43/solver-358321-1176914595 -C 1800 -W 3600 -M 1800 --output-limit 1,15  /tmp/evaluation/358321-1176914595/PBS4 /tmp/evaluation/358321-1176914595/instance-358321-1176914595.opb            

META MD5SUM SOLVER= b6c24e28fef9e1efa7891be58ea9e46f
MD5SUM BENCH=  0df4a6220c19cfaf8dc35e55531bf2a0

RANDOM SEED= 772852751

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node43.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		: 3000.218
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		: 3000.218
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:        674216 kB
Buffers:         62056 kB
Cached:        1105424 kB
SwapCached:       2596 kB
Active:         573984 kB
Inactive:       727852 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        674216 kB
SwapTotal:     4192956 kB
SwapFree:      4184648 kB
Dirty:            1200 kB
Writeback:           0 kB
Mapped:         149644 kB
Slab:            65264 kB
Committed_AS:  1738368 kB
PageTables:       1900 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= 66434 MiB

End job on node43 on Wed Apr 18 16:43:37 UTC 2007