Trace number 357999

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 21.5267 21.5426

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111219348.opb
MD5SUM33ddab1c7704f894e7f63014edbb9b9e
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 benchmark0.694893
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 1212
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/357999-1176911387/instance-357999-1176911387.opb ......
21.48/21.53	c done parsing opb.
21.48/21.53	s UNSATISFIABLE
21.48/21.53	c Total Run Time					21.5207

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/357999-1176911387/instance-357999-1176911387.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/node46/watcher-357999-1176911387 -o ROOT/results/node46/solver-357999-1176911387 -C 1800 -W 3600 -M 1800 --output-limit 1,15 /tmp/evaluation/357999-1176911387/PBS4 /tmp/evaluation/357999-1176911387/instance-357999-1176911387.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: 1.06 1.02 1.00 3/78 15204
/proc/meminfo: memFree=1688488/2055920 swapFree=4162200/4192956
[pid=15204] ppid=15202 vsize=1320 CPUtime=0
/proc/15204/stat : 15204 (PBS4) R 15202 15204 14336 0 -1 4194304 143 0 0 0 0 0 0 0 18 0 1 0 45821714 1351680 125 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/15204/statm: 330 125 92 219 0 107 0

[startup+0.04878 s]
/proc/loadavg: 1.06 1.02 1.00 3/78 15204
/proc/meminfo: memFree=1688488/2055920 swapFree=4162200/4192956
[pid=15204] ppid=15202 vsize=1320 CPUtime=0.04
/proc/15204/stat : 15204 (PBS4) R 15202 15204 14336 0 -1 4194304 166 0 0 0 4 0 0 0 18 0 1 0 45821714 1351680 148 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/15204/statm: 330 148 92 219 0 107 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 1320

[startup+0.10279 s]
/proc/loadavg: 1.06 1.02 1.00 3/78 15204
/proc/meminfo: memFree=1688488/2055920 swapFree=4162200/4192956
[pid=15204] ppid=15202 vsize=1452 CPUtime=0.1
/proc/15204/stat : 15204 (PBS4) R 15202 15204 14336 0 -1 4194304 193 0 0 0 10 0 0 0 18 0 1 0 45821714 1486848 175 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/15204/statm: 363 175 92 219 0 140 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1452

[startup+0.302827 s]
/proc/loadavg: 1.06 1.02 1.00 3/78 15204
/proc/meminfo: memFree=1688488/2055920 swapFree=4162200/4192956
[pid=15204] ppid=15202 vsize=1864 CPUtime=0.29
/proc/15204/stat : 15204 (PBS4) R 15202 15204 14336 0 -1 4194304 305 0 0 0 29 0 0 0 19 0 1 0 45821714 1908736 287 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/15204/statm: 466 287 93 219 0 243 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1864

[startup+0.701901 s]
/proc/loadavg: 1.06 1.02 1.00 3/78 15204
/proc/meminfo: memFree=1688488/2055920 swapFree=4162200/4192956
[pid=15204] ppid=15202 vsize=3596 CPUtime=0.69
/proc/15204/stat : 15204 (PBS4) R 15202 15204 14336 0 -1 4194304 530 0 0 0 69 0 0 0 22 0 1 0 45821714 3682304 512 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/15204/statm: 899 512 93 219 0 676 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3596

[startup+1.50105 s]
/proc/loadavg: 1.06 1.02 1.00 2/79 15205
/proc/meminfo: memFree=1686304/2055920 swapFree=4162200/4192956
[pid=15204] ppid=15202 vsize=3920 CPUtime=1.49
/proc/15204/stat : 15204 (PBS4) R 15202 15204 14336 0 -1 4194304 876 0 0 0 148 1 0 0 25 0 1 0 45821714 4014080 809 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 134547106 0 0 4096 16384 0 0 0 17 1 0 0
/proc/15204/statm: 980 809 94 219 0 757 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 3920

[startup+3.10135 s]
/proc/loadavg: 1.06 1.02 1.00 2/79 15205
/proc/meminfo: memFree=1684512/2055920 swapFree=4162200/4192956
[pid=15204] ppid=15202 vsize=6752 CPUtime=3.09
/proc/15204/stat : 15204 (PBS4) R 15202 15204 14336 0 -1 4194304 1466 0 0 0 307 2 0 0 25 0 1 0 45821714 6914048 1302 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/15204/statm: 1688 1302 94 219 0 1465 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 6752

[startup+6.30194 s]
/proc/loadavg: 1.05 1.02 1.00 2/79 15205
/proc/meminfo: memFree=1681440/2055920 swapFree=4162200/4192956
[pid=15204] ppid=15202 vsize=11524 CPUtime=6.29
/proc/15204/stat : 15204 (PBS4) R 15202 15204 14336 0 -1 4194304 2003 0 0 0 626 3 0 0 25 0 1 0 45821714 11800576 1839 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 134547187 0 0 4096 16384 0 0 0 17 1 0 0
/proc/15204/statm: 2881 1839 94 219 0 2658 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 11524

[startup+12.7011 s]
/proc/loadavg: 1.05 1.02 1.00 2/79 15205
/proc/meminfo: memFree=1679656/2055920 swapFree=4162200/4192956
[pid=15204] ppid=15202 vsize=13144 CPUtime=12.69
/proc/15204/stat : 15204 (PBS4) R 15202 15204 14336 0 -1 4194304 2588 0 0 0 1264 5 0 0 25 0 1 0 45821714 13459456 2231 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/15204/statm: 3286 2231 94 219 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+15.9017 s]
/proc/loadavg: 1.05 1.02 1.00 2/79 15205
/proc/meminfo: memFree=1679144/2055920 swapFree=4162200/4192956
[pid=15204] ppid=15202 vsize=13420 CPUtime=15.88
/proc/15204/stat : 15204 (PBS4) R 15202 15204 14336 0 -1 4194304 2717 0 0 0 1582 6 0 0 25 0 1 0 45821714 13742080 2360 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/15204/statm: 3355 2360 94 219 0 3132 0
Current children cumulated CPU time (s) 15.88
Current children cumulated vsize (KiB) 13420

[startup+19.1013 s]
/proc/loadavg: 1.04 1.02 1.00 2/79 15205
/proc/meminfo: memFree=1678376/2055920 swapFree=4162200/4192956
[pid=15204] ppid=15202 vsize=15444 CPUtime=19.09
/proc/15204/stat : 15204 (PBS4) R 15202 15204 14336 0 -1 4194304 3276 0 0 0 1901 8 0 0 25 0 1 0 45821714 15814656 2534 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/15204/statm: 3861 2534 94 219 0 3638 0
Current children cumulated CPU time (s) 19.09
Current children cumulated vsize (KiB) 15444

[startup+20.7026 s]
/proc/loadavg: 1.04 1.02 1.00 2/79 15205
/proc/meminfo: memFree=1678184/2055920 swapFree=4162200/4192956
[pid=15204] ppid=15202 vsize=15660 CPUtime=20.68
/proc/15204/stat : 15204 (PBS4) R 15202 15204 14336 0 -1 4194304 3341 0 0 0 2060 8 0 0 25 0 1 0 45821714 16035840 2599 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 134547071 0 0 4096 16384 0 0 0 17 1 0 0
/proc/15204/statm: 3915 2599 94 219 0 3692 0
Current children cumulated CPU time (s) 20.68
Current children cumulated vsize (KiB) 15660

[startup+21.1017 s]
/proc/loadavg: 1.04 1.02 1.00 2/79 15205
/proc/meminfo: memFree=1678056/2055920 swapFree=4162200/4192956
[pid=15204] ppid=15202 vsize=15660 CPUtime=21.08
/proc/15204/stat : 15204 (PBS4) R 15202 15204 14336 0 -1 4194304 3347 0 0 0 2100 8 0 0 25 0 1 0 45821714 16035840 2605 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 134547071 0 0 4096 16384 0 0 0 17 1 0 0
/proc/15204/statm: 3915 2605 94 219 0 3692 0
Current children cumulated CPU time (s) 21.08
Current children cumulated vsize (KiB) 15660

[startup+21.5018 s]
/proc/loadavg: 1.04 1.02 1.00 2/79 15205
/proc/meminfo: memFree=1678056/2055920 swapFree=4162200/4192956
[pid=15204] ppid=15202 vsize=15660 CPUtime=21.48
/proc/15204/stat : 15204 (PBS4) R 15202 15204 14336 0 -1 4194304 3358 0 0 0 2140 8 0 0 25 0 1 0 45821714 16035840 2616 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 134547314 0 0 4096 16384 0 0 0 17 1 0 0
/proc/15204/statm: 3915 2616 94 219 0 3692 0
Current children cumulated CPU time (s) 21.48
Current children cumulated vsize (KiB) 15660

Child status: 0
Real time (s): 21.5426
CPU time (s): 21.5267
CPU user time (s): 21.4357
CPU system time (s): 0.090986
CPU usage (%): 99.9262
Max. virtual memory (cumulated for all children) (KiB): 15660

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 21.4357
system time used= 0.090986
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3376
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= 31

runsolver used 0.024996 second user time and 0.05999 second system time

The end

Launcher Data (download as text)

Begin job on node46 on Wed Apr 18 15:49:47 UTC 2007

IDJOB= 357999
IDBENCH= 1183
IDSOLVER= 157
FILE ID= node46/357999-1176911387

PBS_JOBID= 4595191

Free space on /tmp= 66083 MiB

SOLVER NAME= PBS4 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1111219348.opb
COMMAND LINE= /tmp/evaluation/357999-1176911387/PBS4 /tmp/evaluation/357999-1176911387/instance-357999-1176911387.opb            
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node46/convwatcher-357999-1176911387 -o ROOT/results/node46/conversion-357999-1176911387 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/357999-1176911387/instance-357999-1176911387.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node46/watcher-357999-1176911387 -o ROOT/results/node46/solver-357999-1176911387 -C 1800 -W 3600 -M 1800 --output-limit 1,15  /tmp/evaluation/357999-1176911387/PBS4 /tmp/evaluation/357999-1176911387/instance-357999-1176911387.opb            

META MD5SUM SOLVER= b6c24e28fef9e1efa7891be58ea9e46f
MD5SUM BENCH=  33ddab1c7704f894e7f63014edbb9b9e

RANDOM SEED= 12929001

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node46.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		: 3000.268
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	: 5931.00
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		: 3000.268
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:       1688832 kB
Buffers:         19180 kB
Cached:         198364 kB
SwapCached:       1960 kB
Active:          86156 kB
Inactive:       233420 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1688832 kB
SwapTotal:     4192956 kB
SwapFree:      4162200 kB
Dirty:            1172 kB
Writeback:           0 kB
Mapped:         111444 kB
Slab:            32868 kB
Committed_AS:  1926436 kB
PageTables:       1988 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= 66083 MiB

End job on node46 on Wed Apr 18 15:50:09 UTC 2007