Trace number 358349

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 25.1872 25.1969

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111222257.opb
MD5SUM55dd7a9523449c2d998334f2315a7996
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 benchmark0.228965
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 1262
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/358349-1176914700/instance-358349-1176914700.opb ......
25.08/25.19	c done parsing opb.
25.08/25.19	s UNSATISFIABLE
25.08/25.19	c Total Run Time					25.1812

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/358349-1176914700/instance-358349-1176914700.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/node5/watcher-358349-1176914700 -o ROOT/results/node5/solver-358349-1176914700 -C 1800 -W 3600 -M 1800 --output-limit 1,15 /tmp/evaluation/358349-1176914700/PBS4 /tmp/evaluation/358349-1176914700/instance-358349-1176914700.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: 0.90 0.94 0.93 3/77 23465
/proc/meminfo: memFree=1426232/2055920 swapFree=4148144/4192956
[pid=23465] ppid=23463 vsize=1320 CPUtime=0
/proc/23465/stat : 23465 (PBS4) R 23463 23465 23283 0 -1 4194304 143 0 0 0 0 0 0 0 18 0 1 0 167507708 1351680 125 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134559751 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23465/statm: 330 125 92 219 0 107 0

[startup+0.00967404 s]
/proc/loadavg: 0.90 0.94 0.93 3/77 23465
/proc/meminfo: memFree=1426232/2055920 swapFree=4148144/4192956
[pid=23465] ppid=23463 vsize=1320 CPUtime=0
/proc/23465/stat : 23465 (PBS4) R 23463 23465 23283 0 -1 4194304 145 0 0 0 0 0 0 0 18 0 1 0 167507708 1351680 127 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23465/statm: 330 127 92 219 0 107 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 1320

[startup+0.102684 s]
/proc/loadavg: 0.90 0.94 0.93 3/77 23465
/proc/meminfo: memFree=1426232/2055920 swapFree=4148144/4192956
[pid=23465] ppid=23463 vsize=1456 CPUtime=0.1
/proc/23465/stat : 23465 (PBS4) R 23463 23465 23283 0 -1 4194304 186 0 0 0 10 0 0 0 18 0 1 0 167507708 1490944 168 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23465/statm: 364 168 92 219 0 141 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1456

[startup+0.302705 s]
/proc/loadavg: 0.90 0.94 0.93 3/77 23465
/proc/meminfo: memFree=1426232/2055920 swapFree=4148144/4192956
[pid=23465] ppid=23463 vsize=1860 CPUtime=0.29
/proc/23465/stat : 23465 (PBS4) R 23463 23465 23283 0 -1 4194304 309 0 0 0 29 0 0 0 19 0 1 0 167507708 1904640 291 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23465/statm: 465 291 93 219 0 242 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1860

[startup+0.701751 s]
/proc/loadavg: 0.90 0.94 0.93 3/77 23465
/proc/meminfo: memFree=1426232/2055920 swapFree=4148144/4192956
[pid=23465] ppid=23463 vsize=3592 CPUtime=0.69
/proc/23465/stat : 23465 (PBS4) R 23463 23465 23283 0 -1 4194304 506 0 0 0 69 0 0 0 23 0 1 0 167507708 3678208 488 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23465/statm: 898 488 93 219 0 675 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3592

[startup+1.50184 s]
/proc/loadavg: 0.90 0.94 0.93 2/78 23466
/proc/meminfo: memFree=1424176/2055920 swapFree=4148144/4192956
[pid=23465] ppid=23463 vsize=3916 CPUtime=1.49
/proc/23465/stat : 23465 (PBS4) R 23463 23465 23283 0 -1 4194304 866 0 0 0 149 0 0 0 25 0 1 0 167507708 4009984 799 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23465/statm: 979 799 94 219 0 756 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 3916

[startup+3.10202 s]
/proc/loadavg: 0.91 0.94 0.93 2/78 23466
/proc/meminfo: memFree=1422512/2055920 swapFree=4148144/4192956
[pid=23465] ppid=23463 vsize=6756 CPUtime=3.09
/proc/23465/stat : 23465 (PBS4) R 23463 23465 23283 0 -1 4194304 1393 0 0 0 308 1 0 0 25 0 1 0 167507708 6918144 1229 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23465/statm: 1689 1229 94 219 0 1466 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 6756

[startup+6.30138 s]
/proc/loadavg: 0.91 0.94 0.93 2/78 23466
/proc/meminfo: memFree=1419504/2055920 swapFree=4148144/4192956
[pid=23465] ppid=23463 vsize=11388 CPUtime=6.29
/proc/23465/stat : 23465 (PBS4) R 23463 23465 23283 0 -1 4194304 1986 0 0 0 627 2 0 0 25 0 1 0 167507708 11661312 1822 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23465/statm: 2847 1822 94 219 0 2624 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 11388

[startup+12.7011 s]
/proc/loadavg: 0.92 0.95 0.93 2/78 23466
/proc/meminfo: memFree=1415984/2055920 swapFree=4148144/4192956
[pid=23465] ppid=23463 vsize=13256 CPUtime=12.69
/proc/23465/stat : 23465 (PBS4) R 23463 23465 23283 0 -1 4194304 2969 0 0 0 1265 4 0 0 25 0 1 0 167507708 13574144 2612 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23465/statm: 3314 2612 94 219 0 3091 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 13256

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

[startup+19.1018 s]
/proc/loadavg: 0.93 0.95 0.93 2/78 23466
/proc/meminfo: memFree=1414960/2055920 swapFree=4148144/4192956
[pid=23465] ppid=23463 vsize=15264 CPUtime=19.09
/proc/23465/stat : 23465 (PBS4) R 23463 23465 23283 0 -1 4194304 3603 0 0 0 1903 6 0 0 25 0 1 0 167507708 15630336 2861 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23465/statm: 3816 2861 94 219 0 3593 0
Current children cumulated CPU time (s) 19.09
Current children cumulated vsize (KiB) 15264

[startup+22.3012 s]
/proc/loadavg: 0.93 0.95 0.93 2/78 23466
/proc/meminfo: memFree=1414320/2055920 swapFree=4148144/4192956
[pid=23465] ppid=23463 vsize=15800 CPUtime=22.29
/proc/23465/stat : 23465 (PBS4) R 23463 23465 23283 0 -1 4194304 3747 0 0 0 2222 7 0 0 25 0 1 0 167507708 16179200 3005 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23465/statm: 3950 3005 94 219 0 3727 0
Current children cumulated CPU time (s) 22.29
Current children cumulated vsize (KiB) 15800

[startup+23.9014 s]
/proc/loadavg: 0.93 0.95 0.93 2/78 23466
/proc/meminfo: memFree=1414128/2055920 swapFree=4148144/4192956
[pid=23465] ppid=23463 vsize=16132 CPUtime=23.88
/proc/23465/stat : 23465 (PBS4) R 23463 23465 23283 0 -1 4194304 3855 0 0 0 2381 7 0 0 25 0 1 0 167507708 16519168 3113 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134547071 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23465/statm: 4033 3113 94 219 0 3810 0
Current children cumulated CPU time (s) 23.88
Current children cumulated vsize (KiB) 16132

[startup+24.7015 s]
/proc/loadavg: 0.93 0.95 0.93 2/78 23466
/proc/meminfo: memFree=1413872/2055920 swapFree=4148144/4192956
[pid=23465] ppid=23463 vsize=16132 CPUtime=24.68
/proc/23465/stat : 23465 (PBS4) R 23463 23465 23283 0 -1 4194304 3865 0 0 0 2461 7 0 0 25 0 1 0 167507708 16519168 3123 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23465/statm: 4033 3123 94 219 0 3810 0
Current children cumulated CPU time (s) 24.68
Current children cumulated vsize (KiB) 16132

[startup+25.1015 s]
/proc/loadavg: 0.93 0.95 0.93 2/78 23466
/proc/meminfo: memFree=1413872/2055920 swapFree=4148144/4192956
[pid=23465] ppid=23463 vsize=16132 CPUtime=25.08
/proc/23465/stat : 23465 (PBS4) R 23463 23465 23283 0 -1 4194304 3870 0 0 0 2501 7 0 0 25 0 1 0 167507708 16519168 3128 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23465/statm: 4033 3128 94 219 0 3810 0
Current children cumulated CPU time (s) 25.08
Current children cumulated vsize (KiB) 16132

Child status: 0
Real time (s): 25.1969
CPU time (s): 25.1872
CPU user time (s): 25.1052
CPU system time (s): 0.081987
CPU usage (%): 99.9613
Max. virtual memory (cumulated for all children) (KiB): 16132

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 25.1052
system time used= 0.081987
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3886
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= 520

runsolver used 0.031995 second user time and 0.067989 second system time

The end

Launcher Data (download as text)

Begin job on node5 on Wed Apr 18 16:45:00 UTC 2007

IDJOB= 358349
IDBENCH= 1208
IDSOLVER= 157
FILE ID= node5/358349-1176914700

PBS_JOBID= 4595255

Free space on /tmp= 66356 MiB

SOLVER NAME= PBS4 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1111222257.opb
COMMAND LINE= /tmp/evaluation/358349-1176914700/PBS4 /tmp/evaluation/358349-1176914700/instance-358349-1176914700.opb            
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node5/convwatcher-358349-1176914700 -o ROOT/results/node5/conversion-358349-1176914700 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/358349-1176914700/instance-358349-1176914700.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node5/watcher-358349-1176914700 -o ROOT/results/node5/solver-358349-1176914700 -C 1800 -W 3600 -M 1800 --output-limit 1,15  /tmp/evaluation/358349-1176914700/PBS4 /tmp/evaluation/358349-1176914700/instance-358349-1176914700.opb            

META MD5SUM SOLVER= b6c24e28fef9e1efa7891be58ea9e46f
MD5SUM BENCH=  55dd7a9523449c2d998334f2315a7996

RANDOM SEED= 996903750

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node5.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:       1426640 kB
Buffers:         29836 kB
Cached:         529788 kB
SwapCached:      12800 kB
Active:         196716 kB
Inactive:       389000 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1426640 kB
SwapTotal:     4192956 kB
SwapFree:      4148144 kB
Dirty:            1196 kB
Writeback:           0 kB
Mapped:          29640 kB
Slab:            29100 kB
Committed_AS:  8616424 kB
PageTables:       1720 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= 66356 MiB

End job on node5 on Wed Apr 18 16:45:26 UTC 2007