Trace number 268198

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
VALCSP 3.1? (MO) 90.1993 90.563

General information on the benchmark

NamequeensKnights/
queensKnights-100-5-add.xml
MD5SUM814dd4df9b9e9ae148440d277fd5ff15
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark311.288
SatisfiableNO
(Un)Satisfiability was proved
Number of variables105
Number of constraints4960
Maximum constraint arity2
Maximum domain size10000
Number of constraints which are defined in extension0
Number of constraints which are defined in intension4960
Global constraints used (with number of constraints)

Solver Data (download as text)



Verifier Data (download as text)




ERROR: Unexpected answer ! (SAT/UNSAT expected)
Got answer: 



Watcher Data (download as text)




runsolver version 3.1.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node61/watcher-268198-1168978102 -o ROOT/results/node61/solver-268198-1168978102 -C 1800 -M 900 /tmp/evaluation/268198-1168978102/VALCSP /tmp/evaluation/268198-1168978102/unknown.xml 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 921600 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 972800 KiB
Current StackSize limit: 10240 KiB

/proc/loadavg: 1.17 0.59 0.22 5/73 20196
/proc/meminfo: memFree=1618160/2055920 swapFree=4191892/4192956
[pid=20195] ppid=20193 vsize=1384 CPUtime=0
/proc/20195/stat : 20195 (VALCSP) R 20193 20195 19643 0 -1 4194304 55 0 0 0 0 0 0 0 20 0 1 0 246208113 1417216 40 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 10353528 0 0 4096 0 0 0 0 17 1 0 0
/proc/20195/statm: 346 40 32 8 0 6 0

[startup+0.104275 s]
/proc/loadavg: 1.17 0.59 0.22 5/73 20196
/proc/meminfo: memFree=1618160/2055920 swapFree=4191892/4192956
[pid=20195] ppid=20193 vsize=4548 CPUtime=0.09
/proc/20195/stat : 20195 (VALCSP) R 20193 20195 19643 0 -1 4194304 866 0 0 0 9 0 0 0 20 0 1 0 246208113 4657152 844 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529332 0 0 4096 0 0 0 0 17 1 0 0
/proc/20195/statm: 1137 844 64 8 0 809 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4548

[startup+0.51234 s]
/proc/loadavg: 1.17 0.59 0.22 5/73 20196
/proc/meminfo: memFree=1618160/2055920 swapFree=4191892/4192956
[pid=20195] ppid=20193 vsize=11808 CPUtime=0.5
/proc/20195/stat : 20195 (VALCSP) R 20193 20195 19643 0 -1 4194304 2670 0 0 0 49 1 0 0 23 0 1 0 246208113 12091392 2648 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528639 0 0 4096 0 0 0 0 17 1 0 0
/proc/20195/statm: 2952 2648 64 8 0 2624 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 11808

[startup+1.33849 s]
/proc/loadavg: 1.23 0.61 0.23 3/73 20196
/proc/meminfo: memFree=1596784/2055920 swapFree=4191892/4192956
[pid=20195] ppid=20193 vsize=26328 CPUtime=1.32
/proc/20195/stat : 20195 (VALCSP) R 20193 20195 19643 0 -1 4194304 6318 0 0 0 129 3 0 0 25 0 1 0 246208113 26959872 6296 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528672 0 0 4096 0 0 0 0 17 1 0 0
/proc/20195/statm: 6582 6296 64 8 0 6254 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 26328

[startup+2.97677 s]
/proc/loadavg: 1.23 0.61 0.23 3/73 20196
/proc/meminfo: memFree=1576752/2055920 swapFree=4191892/4192956
[pid=20195] ppid=20193 vsize=55368 CPUtime=2.96
/proc/20195/stat : 20195 (VALCSP) R 20193 20195 19643 0 -1 4194304 13576 0 0 0 289 7 0 0 25 0 1 0 246208113 56696832 13554 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528756 0 0 4096 0 0 0 0 17 1 0 0
/proc/20195/statm: 13842 13554 64 8 0 13514 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 55368

[startup+6.25935 s]
/proc/loadavg: 1.30 0.63 0.24 3/73 20196
/proc/meminfo: memFree=1516912/2055920 swapFree=4191892/4192956
[pid=20195] ppid=20193 vsize=113312 CPUtime=6.23
/proc/20195/stat : 20195 (VALCSP) R 20193 20195 19643 0 -1 4194304 28054 0 0 0 609 14 0 0 25 0 1 0 246208113 116031488 28032 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529359 0 0 4096 0 0 0 0 17 1 0 0
/proc/20195/statm: 28328 28032 64 8 0 28000 0
Current children cumulated CPU time (s) 6.23
Current children cumulated vsize (KiB) 113312

[startup+12.7225 s]
/proc/loadavg: 1.35 0.66 0.25 3/73 20196
/proc/meminfo: memFree=1021680/2055920 swapFree=4191892/4192956
[pid=20195] ppid=20193 vsize=596592 CPUtime=12.66
/proc/20195/stat : 20195 (VALCSP) R 20193 20195 19643 0 -1 4194304 148881 0 0 0 1198 68 0 0 25 0 1 0 246208113 610910208 148859 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528697 0 0 4096 0 0 0 0 17 1 0 0
/proc/20195/statm: 149148 148859 64 8 0 148820 0
Current children cumulated CPU time (s) 12.66
Current children cumulated vsize (KiB) 596592

[startup+25.5317 s]
/proc/loadavg: 1.45 0.70 0.27 3/73 20196
/proc/meminfo: memFree=1021680/2055920 swapFree=4191892/4192956
[pid=20195] ppid=20193 vsize=596592 CPUtime=25.42
/proc/20195/stat : 20195 (VALCSP) R 20193 20195 19643 0 -1 4194304 148881 0 0 0 2474 68 0 0 25 0 1 0 246208113 610910208 148859 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528883 0 0 4096 0 0 0 0 17 1 0 0
/proc/20195/statm: 149148 148859 64 8 0 148820 0
Current children cumulated CPU time (s) 25.42
Current children cumulated vsize (KiB) 596592

[startup+51.1562 s]
/proc/loadavg: 1.67 0.82 0.32 3/73 20196
/proc/meminfo: memFree=1021680/2055920 swapFree=4191892/4192956
[pid=20195] ppid=20193 vsize=596592 CPUtime=50.94
/proc/20195/stat : 20195 (VALCSP) R 20193 20195 19643 0 -1 4194304 148881 0 0 0 5026 68 0 0 25 0 1 0 246208113 610910208 148859 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528876 0 0 4096 0 0 0 0 17 1 0 0
/proc/20195/statm: 149148 148859 64 8 0 148820 0
Current children cumulated CPU time (s) 50.94
Current children cumulated vsize (KiB) 596592



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+90.4101 s]
/proc/loadavg: 1.81 0.95 0.38 3/73 20196
/proc/meminfo: memFree=666672/2055920 swapFree=4191892/4192956
[pid=20195] ppid=20193 vsize=950860 CPUtime=90.04
/proc/20195/stat : 20195 (VALCSP) R 20193 20195 19643 0 -1 4194304 237448 0 0 0 8897 107 0 0 25 0 1 0 246208113 973680640 237426 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134538694 0 0 4096 0 0 0 0 17 1 0 0
/proc/20195/statm: 237715 237426 64 8 0 237387 0
Current children cumulated CPU time (s) 90.04
Current children cumulated vsize (KiB) 950860

Sending SIGTERM to process tree (bottom up)
Sleeping 2 seconds

Child ended because it received signal 15 (SIGTERM)
Real time (s): 90.563
CPU time (s): 90.1993
CPU user time (s): 88.9795
CPU system time (s): 1.21981
CPU usage (%): 99.5984
Max. virtual memory (cumulated for all children) (KiB): 950860

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 88.9795
system time used= 1.21981
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 237448
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= 6
involuntary context switches= 1045

runsolver used 0.094985 s user time and 0.238963 s system time

The end



Launcher Data (download as text)




Begin job on node61 on Tue Jan 16 20:08:23 UTC 2007


IDJOB= 268198
IDBENCH= 3714
IDSOLVER= 90
FILE ID= node61/268198-1168978102

PBS_JOBID= 3566135

Free space on /tmp= 66564 MiB

SOLVER NAME= VALCSP 3.1
BENCH NAME= HOME/pub/bench/CPAI06/queensKnights/queensKnights-100-5-add.xml
COMMAND LINE= /tmp/evaluation/268198-1168978102/VALCSP /tmp/evaluation/268198-1168978102/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node61/watcher-268198-1168978102 -o ROOT/results/node61/solver-268198-1168978102 -C 1800 -M 900  /tmp/evaluation/268198-1168978102/VALCSP /tmp/evaluation/268198-1168978102/unknown.xml

META MD5SUM SOLVER= d4fc2c4e0b0392ee9c79e754aa39e238
MD5SUM BENCH=  814dd4df9b9e9ae148440d277fd5ff15

RANDOM SEED= 740486371

TIME LIMIT= 1800 seconds

MEMORY LIMIT= 900 MiB


/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		: 3000.259
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		: 3000.259
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:       1618640 kB
Buffers:         61184 kB
Cached:         285952 kB
SwapCached:        480 kB
Active:         174760 kB
Inactive:       207156 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1618640 kB
SwapTotal:     4192956 kB
SwapFree:      4191892 kB
Dirty:             760 kB
Writeback:           0 kB
Mapped:          44344 kB
Slab:            41076 kB
Committed_AS:  4969004 kB
PageTables:       1728 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= 66564 MiB



End job on node61 on Tue Jan 16 20:09:53 UTC 2007