Trace number 358979

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 20.4779 20.4854

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111224929.opb
MD5SUM7cb47e44b2705fbf7948e62a414ce623
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 benchmark0.045992
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 1264
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/358979-1176918696/instance-358979-1176918696.opb ......
20.39/20.48	c done parsing opb.
20.39/20.48	s UNSATISFIABLE
20.39/20.48	c Total Run Time					20.4699

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/358979-1176918696/instance-358979-1176918696.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/node33/watcher-358979-1176918696 -o ROOT/results/node33/solver-358979-1176918696 -C 1800 -W 3600 -M 1800 --output-limit 1,15 /tmp/evaluation/358979-1176918696/PBS4 /tmp/evaluation/358979-1176918696/instance-358979-1176918696.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: 0.78 0.91 0.92 3/77 27980
/proc/meminfo: memFree=1795904/2055920 swapFree=4176996/4192956
[pid=27980] ppid=27978 vsize=1320 CPUtime=0
/proc/27980/stat : 27980 (PBS4) R 27978 27980 27255 0 -1 4194304 144 0 0 0 0 0 0 0 18 0 1 0 139785081 1351680 126 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27980/statm: 330 126 92 219 0 107 0

[startup+0.102323 s]
/proc/loadavg: 0.78 0.91 0.92 3/77 27980
/proc/meminfo: memFree=1795904/2055920 swapFree=4176996/4192956
[pid=27980] ppid=27978 vsize=1456 CPUtime=0.1
/proc/27980/stat : 27980 (PBS4) R 27978 27980 27255 0 -1 4194304 218 0 0 0 10 0 0 0 18 0 1 0 139785081 1490944 200 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27980/statm: 364 200 92 219 0 141 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1456

[startup+0.201342 s]
/proc/loadavg: 0.78 0.91 0.92 3/77 27980
/proc/meminfo: memFree=1795904/2055920 swapFree=4176996/4192956
[pid=27980] ppid=27978 vsize=1712 CPUtime=0.19
/proc/27980/stat : 27980 (PBS4) R 27978 27980 27255 0 -1 4194304 261 0 0 0 19 0 0 0 18 0 1 0 139785081 1753088 243 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27980/statm: 428 243 93 219 0 205 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 1712

[startup+0.301363 s]
/proc/loadavg: 0.78 0.91 0.92 3/77 27980
/proc/meminfo: memFree=1795904/2055920 swapFree=4176996/4192956
[pid=27980] ppid=27978 vsize=2384 CPUtime=0.29
/proc/27980/stat : 27980 (PBS4) R 27978 27980 27255 0 -1 4194304 334 0 0 0 29 0 0 0 19 0 1 0 139785081 2441216 316 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27980/statm: 596 316 93 219 0 373 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2384

[startup+0.701444 s]
/proc/loadavg: 0.78 0.91 0.92 3/77 27980
/proc/meminfo: memFree=1795904/2055920 swapFree=4176996/4192956
[pid=27980] ppid=27978 vsize=3604 CPUtime=0.69
/proc/27980/stat : 27980 (PBS4) R 27978 27980 27255 0 -1 4194304 541 0 0 0 69 0 0 0 23 0 1 0 139785081 3690496 523 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27980/statm: 901 523 93 219 0 678 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3604

[startup+1.50161 s]
/proc/loadavg: 0.78 0.91 0.92 2/78 27981
/proc/meminfo: memFree=1793400/2055920 swapFree=4176996/4192956
[pid=27980] ppid=27978 vsize=6108 CPUtime=1.49
/proc/27980/stat : 27980 (PBS4) R 27978 27980 27255 0 -1 4194304 910 0 0 0 148 1 0 0 25 0 1 0 139785081 6254592 843 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27980/statm: 1527 843 94 219 0 1304 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 6108

[startup+3.10194 s]
/proc/loadavg: 0.79 0.91 0.92 2/78 27981
/proc/meminfo: memFree=1792248/2055920 swapFree=4176996/4192956
[pid=27980] ppid=27978 vsize=6760 CPUtime=3.09
/proc/27980/stat : 27980 (PBS4) R 27978 27980 27255 0 -1 4194304 1351 0 0 0 308 1 0 0 25 0 1 0 139785081 6922240 1187 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27980/statm: 1690 1187 94 219 0 1467 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 6760

[startup+6.30159 s]
/proc/loadavg: 0.79 0.91 0.92 2/78 27981
/proc/meminfo: memFree=1789304/2055920 swapFree=4176996/4192956
[pid=27980] ppid=27978 vsize=11540 CPUtime=6.29
/proc/27980/stat : 27980 (PBS4) R 27978 27980 27255 0 -1 4194304 1884 0 0 0 627 2 0 0 25 0 1 0 139785081 11816960 1720 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27980/statm: 2885 1720 94 219 0 2662 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 11540

[startup+12.7019 s]
/proc/loadavg: 0.82 0.92 0.92 2/78 27981
/proc/meminfo: memFree=1785528/2055920 swapFree=4176996/4192956
[pid=27980] ppid=27978 vsize=13148 CPUtime=12.69
/proc/27980/stat : 27980 (PBS4) R 27978 27980 27255 0 -1 4194304 3070 0 0 0 1264 5 0 0 25 0 1 0 139785081 13463552 2713 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27980/statm: 3287 2713 94 219 0 3064 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 13148

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

[startup+12.8029 s]
/proc/loadavg: 0.82 0.92 0.92 2/78 27981
/proc/meminfo: memFree=1785528/2055920 swapFree=4176996/4192956
[pid=27980] ppid=27978 vsize=13304 CPUtime=12.79
/proc/27980/stat : 27980 (PBS4) R 27978 27980 27255 0 -1 4194304 3116 0 0 0 1274 5 0 0 25 0 1 0 139785081 13623296 2759 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134549343 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27980/statm: 3326 2759 94 219 0 3103 0
Current children cumulated CPU time (s) 12.79
Current children cumulated vsize (KiB) 13304

[startup+16.0016 s]
/proc/loadavg: 0.82 0.92 0.92 2/78 27981
/proc/meminfo: memFree=1783544/2055920 swapFree=4176996/4192956
[pid=27980] ppid=27978 vsize=13872 CPUtime=15.99
/proc/27980/stat : 27980 (PBS4) R 27978 27980 27255 0 -1 4194304 3523 0 0 0 1593 6 0 0 25 0 1 0 139785081 14204928 3166 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134547106 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27980/statm: 3468 3166 94 219 0 3245 0
Current children cumulated CPU time (s) 15.99
Current children cumulated vsize (KiB) 13872

[startup+17.6019 s]
/proc/loadavg: 0.84 0.92 0.92 2/78 27981
/proc/meminfo: memFree=1783032/2055920 swapFree=4176996/4192956
[pid=27980] ppid=27978 vsize=14072 CPUtime=17.59
/proc/27980/stat : 27980 (PBS4) R 27978 27980 27255 0 -1 4194304 3602 0 0 0 1753 6 0 0 25 0 1 0 139785081 14409728 3245 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27980/statm: 3518 3245 94 219 0 3295 0
Current children cumulated CPU time (s) 17.59
Current children cumulated vsize (KiB) 14072

[startup+19.2012 s]
/proc/loadavg: 0.84 0.92 0.92 2/78 27981
/proc/meminfo: memFree=1782712/2055920 swapFree=4176996/4192956
[pid=27980] ppid=27978 vsize=15984 CPUtime=19.18
/proc/27980/stat : 27980 (PBS4) R 27978 27980 27255 0 -1 4194304 4074 0 0 0 1912 6 0 0 25 0 1 0 139785081 16367616 3332 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27980/statm: 3996 3332 94 219 0 3773 0
Current children cumulated CPU time (s) 19.18
Current children cumulated vsize (KiB) 15984

[startup+20.0014 s]
/proc/loadavg: 0.84 0.92 0.92 2/78 27981
/proc/meminfo: memFree=1782456/2055920 swapFree=4176996/4192956
[pid=27980] ppid=27978 vsize=15984 CPUtime=19.99
/proc/27980/stat : 27980 (PBS4) R 27978 27980 27255 0 -1 4194304 4121 0 0 0 1992 7 0 0 25 0 1 0 139785081 16367616 3379 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27980/statm: 3996 3379 94 219 0 3773 0
Current children cumulated CPU time (s) 19.99
Current children cumulated vsize (KiB) 15984

[startup+20.4015 s]
/proc/loadavg: 0.84 0.92 0.92 2/78 27981
/proc/meminfo: memFree=1782456/2055920 swapFree=4176996/4192956
[pid=27980] ppid=27978 vsize=16184 CPUtime=20.39
/proc/27980/stat : 27980 (PBS4) R 27978 27980 27255 0 -1 4194304 4138 0 0 0 2032 7 0 0 25 0 1 0 139785081 16572416 3396 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27980/statm: 4046 3396 94 219 0 3823 0
Current children cumulated CPU time (s) 20.39
Current children cumulated vsize (KiB) 16184

Child status: 0
Real time (s): 20.4854
CPU time (s): 20.4779
CPU user time (s): 20.4019
CPU system time (s): 0.075988
CPU usage (%): 99.9635
Max. virtual memory (cumulated for all children) (KiB): 16184

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 20.4019
system time used= 0.075988
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4154
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= 438

runsolver used 0.017997 second user time and 0.06399 second system time

The end

Launcher Data (download as text)

Begin job on node33 on Wed Apr 18 17:51:36 UTC 2007

IDJOB= 358979
IDBENCH= 1253
IDSOLVER= 157
FILE ID= node33/358979-1176918696

PBS_JOBID= 4595259

Free space on /tmp= 66476 MiB

SOLVER NAME= PBS4 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1111224929.opb
COMMAND LINE= /tmp/evaluation/358979-1176918696/PBS4 /tmp/evaluation/358979-1176918696/instance-358979-1176918696.opb            
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node33/convwatcher-358979-1176918696 -o ROOT/results/node33/conversion-358979-1176918696 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/358979-1176918696/instance-358979-1176918696.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node33/watcher-358979-1176918696 -o ROOT/results/node33/solver-358979-1176918696 -C 1800 -W 3600 -M 1800 --output-limit 1,15  /tmp/evaluation/358979-1176918696/PBS4 /tmp/evaluation/358979-1176918696/instance-358979-1176918696.opb            

META MD5SUM SOLVER= b6c24e28fef9e1efa7891be58ea9e46f
MD5SUM BENCH=  7cb47e44b2705fbf7948e62a414ce623

RANDOM SEED= 723142219

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node33.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		: 3000.272
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		: 3000.272
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:       1796248 kB
Buffers:         17820 kB
Cached:         110000 kB
SwapCached:       2264 kB
Active:         119276 kB
Inactive:        86544 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1796248 kB
SwapTotal:     4192956 kB
SwapFree:      4176996 kB
Dirty:            1324 kB
Writeback:           0 kB
Mapped:          92992 kB
Slab:            39088 kB
Committed_AS:  1659228 kB
PageTables:       1992 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= 66476 MiB

End job on node33 on Wed Apr 18 17:51:57 UTC 2007