Trace number 357915

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 21.6297 21.637

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111226062.opb
MD5SUM866f5ef3323c718f8dc3ec29e930c03b
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 benchmark0.432934
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 1231
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/357915-1176902910/instance-357915-1176902910.opb ......
21.58/21.63	c done parsing opb.
21.58/21.63	s UNSATISFIABLE
21.58/21.63	c Total Run Time					21.6237

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/357915-1176902910/instance-357915-1176902910.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-357915-1176902910 -o ROOT/results/node43/solver-357915-1176902910 -C 1800 -W 3600 -M 1800 --output-limit 1,15 /tmp/evaluation/357915-1176902910/PBS4 /tmp/evaluation/357915-1176902910/instance-357915-1176902910.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: 1.00 1.02 1.00 3/77 29748
/proc/meminfo: memFree=675272/2055920 swapFree=4184648/4192956
[pid=29748] ppid=29746 vsize=1320 CPUtime=0
/proc/29748/stat : 29748 (PBS4) R 29746 29748 28236 0 -1 4194304 143 0 0 0 0 0 0 0 18 0 1 0 138202863 1351680 125 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29748/statm: 330 125 92 219 0 107 0

[startup+0.00999497 s]
/proc/loadavg: 1.00 1.02 1.00 3/77 29748
/proc/meminfo: memFree=675272/2055920 swapFree=4184648/4192956
[pid=29748] ppid=29746 vsize=1320 CPUtime=0
/proc/29748/stat : 29748 (PBS4) R 29746 29748 28236 0 -1 4194304 145 0 0 0 0 0 0 0 18 0 1 0 138202863 1351680 127 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 134559800 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29748/statm: 330 127 92 219 0 107 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 1320

[startup+0.102002 s]
/proc/loadavg: 1.00 1.02 1.00 3/77 29748
/proc/meminfo: memFree=675272/2055920 swapFree=4184648/4192956
[pid=29748] ppid=29746 vsize=1456 CPUtime=0.09
/proc/29748/stat : 29748 (PBS4) R 29746 29748 28236 0 -1 4194304 192 0 0 0 9 0 0 0 18 0 1 0 138202863 1490944 174 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29748/statm: 364 174 92 219 0 141 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1456

[startup+0.302019 s]
/proc/loadavg: 1.00 1.02 1.00 3/77 29748
/proc/meminfo: memFree=675272/2055920 swapFree=4184648/4192956
[pid=29748] ppid=29746 vsize=1868 CPUtime=0.29
/proc/29748/stat : 29748 (PBS4) R 29746 29748 28236 0 -1 4194304 302 0 0 0 29 0 0 0 19 0 1 0 138202863 1912832 284 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 134559759 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29748/statm: 467 284 93 219 0 244 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1868

[startup+0.701053 s]
/proc/loadavg: 1.00 1.02 1.00 3/77 29748
/proc/meminfo: memFree=675272/2055920 swapFree=4184648/4192956
[pid=29748] ppid=29746 vsize=3600 CPUtime=0.69
/proc/29748/stat : 29748 (PBS4) R 29746 29748 28236 0 -1 4194304 507 0 0 0 69 0 0 0 22 0 1 0 138202863 3686400 489 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29748/statm: 900 489 93 219 0 677 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3600

[startup+1.50112 s]
/proc/loadavg: 1.00 1.01 1.00 2/78 29749
/proc/meminfo: memFree=672896/2055920 swapFree=4184648/4192956
[pid=29748] ppid=29746 vsize=5972 CPUtime=1.49
/proc/29748/stat : 29748 (PBS4) R 29746 29748 28236 0 -1 4194304 900 0 0 0 148 1 0 0 25 0 1 0 138202863 6115328 833 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29748/statm: 1493 833 94 219 0 1270 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 5972

[startup+3.10126 s]
/proc/loadavg: 1.00 1.01 1.00 2/78 29749
/proc/meminfo: memFree=671232/2055920 swapFree=4184648/4192956
[pid=29748] ppid=29746 vsize=6884 CPUtime=3.09
/proc/29748/stat : 29748 (PBS4) R 29746 29748 28236 0 -1 4194304 1518 0 0 0 307 2 0 0 25 0 1 0 138202863 7049216 1354 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29748/statm: 1721 1354 94 219 0 1498 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 6884

[startup+6.30154 s]
/proc/loadavg: 1.00 1.01 1.00 2/78 29749
/proc/meminfo: memFree=667840/2055920 swapFree=4184648/4192956
[pid=29748] ppid=29746 vsize=11516 CPUtime=6.29
/proc/29748/stat : 29748 (PBS4) R 29746 29748 28236 0 -1 4194304 2160 0 0 0 626 3 0 0 25 0 1 0 138202863 11792384 1996 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29748/statm: 2879 1996 94 219 0 2656 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 11516

[startup+12.7011 s]
/proc/loadavg: 1.00 1.01 1.00 2/78 29749
/proc/meminfo: memFree=665728/2055920 swapFree=4184648/4192956
[pid=29748] ppid=29746 vsize=13264 CPUtime=12.69
/proc/29748/stat : 29748 (PBS4) R 29746 29748 28236 0 -1 4194304 2794 0 0 0 1264 5 0 0 25 0 1 0 138202863 13582336 2437 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29748/statm: 3316 2437 94 219 0 3093 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 13264

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

[startup+15.9014 s]
/proc/loadavg: 1.00 1.01 1.00 2/78 29749
/proc/meminfo: memFree=665024/2055920 swapFree=4184648/4192956
[pid=29748] ppid=29746 vsize=13692 CPUtime=15.89
/proc/29748/stat : 29748 (PBS4) R 29746 29748 28236 0 -1 4194304 2970 0 0 0 1583 6 0 0 25 0 1 0 138202863 14020608 2613 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29748/statm: 3423 2613 94 219 0 3200 0
Current children cumulated CPU time (s) 15.89
Current children cumulated vsize (KiB) 13692

[startup+19.1017 s]
/proc/loadavg: 1.00 1.01 1.00 2/78 29749
/proc/meminfo: memFree=664256/2055920 swapFree=4184648/4192956
[pid=29748] ppid=29746 vsize=15568 CPUtime=19.09
/proc/29748/stat : 29748 (PBS4) R 29746 29748 28236 0 -1 4194304 3504 0 0 0 1902 7 0 0 25 0 1 0 138202863 15941632 2762 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29748/statm: 3892 2762 94 219 0 3669 0
Current children cumulated CPU time (s) 19.09
Current children cumulated vsize (KiB) 15568

[startup+20.7018 s]
/proc/loadavg: 1.00 1.01 1.00 2/78 29749
/proc/meminfo: memFree=664256/2055920 swapFree=4184648/4192956
[pid=29748] ppid=29746 vsize=15708 CPUtime=20.69
/proc/29748/stat : 29748 (PBS4) R 29746 29748 28236 0 -1 4194304 3544 0 0 0 2062 7 0 0 25 0 1 0 138202863 16084992 2802 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29748/statm: 3927 2802 94 219 0 3704 0
Current children cumulated CPU time (s) 20.69
Current children cumulated vsize (KiB) 15708

[startup+21.1018 s]
/proc/loadavg: 1.00 1.01 1.00 2/78 29749
/proc/meminfo: memFree=663808/2055920 swapFree=4184648/4192956
[pid=29748] ppid=29746 vsize=16108 CPUtime=21.08
/proc/29748/stat : 29748 (PBS4) R 29746 29748 28236 0 -1 4194304 3638 0 0 0 2101 7 0 0 25 0 1 0 138202863 16494592 2896 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29748/statm: 4027 2896 94 219 0 3804 0
Current children cumulated CPU time (s) 21.08
Current children cumulated vsize (KiB) 16108

[startup+21.5019 s]
/proc/loadavg: 1.00 1.01 1.00 2/78 29749
/proc/meminfo: memFree=663808/2055920 swapFree=4184648/4192956
[pid=29748] ppid=29746 vsize=16108 CPUtime=21.48
/proc/29748/stat : 29748 (PBS4) R 29746 29748 28236 0 -1 4194304 3644 0 0 0 2141 7 0 0 25 0 1 0 138202863 16494592 2902 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29748/statm: 4027 2902 94 219 0 3804 0
Current children cumulated CPU time (s) 21.48
Current children cumulated vsize (KiB) 16108

[startup+21.6019 s]
/proc/loadavg: 1.00 1.01 1.00 2/78 29749
/proc/meminfo: memFree=663808/2055920 swapFree=4184648/4192956
[pid=29748] ppid=29746 vsize=16108 CPUtime=21.58
/proc/29748/stat : 29748 (PBS4) R 29746 29748 28236 0 -1 4194304 3646 0 0 0 2151 7 0 0 25 0 1 0 138202863 16494592 2904 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29748/statm: 4027 2904 94 219 0 3804 0
Current children cumulated CPU time (s) 21.58
Current children cumulated vsize (KiB) 16108

Child status: 0
Real time (s): 21.637
CPU time (s): 21.6297
CPU user time (s): 21.5487
CPU system time (s): 0.080987
CPU usage (%): 99.9663
Max. virtual memory (cumulated for all children) (KiB): 16108

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 21.5487
system time used= 0.080987
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3661
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= 52

runsolver used 0.026995 second user time and 0.053991 second system time

The end

Launcher Data (download as text)

Begin job on node43 on Wed Apr 18 13:28:31 UTC 2007

IDJOB= 357915
IDBENCH= 1177
IDSOLVER= 157
FILE ID= node43/357915-1176902910

PBS_JOBID= 4595165

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-t2001.13queen13.1111226062.opb
COMMAND LINE= /tmp/evaluation/357915-1176902910/PBS4 /tmp/evaluation/357915-1176902910/instance-357915-1176902910.opb            
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node43/convwatcher-357915-1176902910 -o ROOT/results/node43/conversion-357915-1176902910 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/357915-1176902910/instance-357915-1176902910.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node43/watcher-357915-1176902910 -o ROOT/results/node43/solver-357915-1176902910 -C 1800 -W 3600 -M 1800 --output-limit 1,15  /tmp/evaluation/357915-1176902910/PBS4 /tmp/evaluation/357915-1176902910/instance-357915-1176902910.opb            

META MD5SUM SOLVER= b6c24e28fef9e1efa7891be58ea9e46f
MD5SUM BENCH=  866f5ef3323c718f8dc3ec29e930c03b

RANDOM SEED= 397363333

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:        675744 kB
Buffers:         61848 kB
Cached:        1102232 kB
SwapCached:       2596 kB
Active:         564236 kB
Inactive:       736108 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        675744 kB
SwapTotal:     4192956 kB
SwapFree:      4184648 kB
Dirty:            1228 kB
Writeback:           0 kB
Mapped:         151540 kB
Slab:            65276 kB
Committed_AS:  1732296 kB
PageTables:       1896 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 13:28:52 UTC 2007