Trace number 269534

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) 27.1229 27.2441

General information on the benchmark

Namehaystacks/
haystacks_52.xml
MD5SUMbfebe5df1905949972c2e283719f815b
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Satisfiable
(Un)Satisfiability was proved
Number of variables2704
Number of constraints69003
Maximum constraint arity2
Maximum domain size52
Number of constraints which are defined in extension0
Number of constraints which are defined in intension69003
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/node56/watcher-269534-1168980960 -o ROOT/results/node56/solver-269534-1168980960 -C 1800 -M 900 /tmp/evaluation/269534-1168980960/VALCSP /tmp/evaluation/269534-1168980960/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: 1.95 1.36 0.89 6/73 16815
/proc/meminfo: memFree=1186280/2055920 swapFree=4184804/4192956
[pid=16814] ppid=16812 vsize=3896 CPUtime=0
/proc/16814/stat : 16814 (VALCSP) R 16812 16814 16458 0 -1 4194304 659 0 0 0 0 0 0 0 20 0 1 0 246494318 3989504 637 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 10462843 0 0 4096 0 0 0 0 17 1 0 0
/proc/16814/statm: 974 637 64 8 0 646 0

[startup+0.108195 s]
/proc/loadavg: 1.95 1.36 0.89 6/73 16815
/proc/meminfo: memFree=1186280/2055920 swapFree=4184804/4192956
[pid=16814] ppid=16812 vsize=79292 CPUtime=0.1
/proc/16814/stat : 16814 (VALCSP) R 16812 16814 16458 0 -1 4194304 18759 0 0 0 2 8 0 0 20 0 1 0 246494318 81195008 18737 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 10462843 0 0 4096 0 0 0 0 17 1 0 0
/proc/16814/statm: 19823 18737 64 8 0 19495 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 79292

[startup+0.519225 s]
/proc/loadavg: 1.95 1.36 0.89 6/73 16815
/proc/meminfo: memFree=1186280/2055920 swapFree=4184804/4192956
[pid=16814] ppid=16812 vsize=104052 CPUtime=0.5
/proc/16814/stat : 16814 (VALCSP) R 16812 16814 16458 0 -1 4194304 24506 0 0 0 40 10 0 0 23 0 1 0 246494318 106549248 24484 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529359 0 0 4096 0 0 0 0 17 1 0 0
/proc/16814/statm: 26013 24484 65 8 0 25685 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 104052

[startup+1.3403 s]
/proc/loadavg: 1.95 1.36 0.89 3/73 16815
/proc/meminfo: memFree=1063464/2055920 swapFree=4184804/4192956
[pid=16814] ppid=16812 vsize=129372 CPUtime=1.32
/proc/16814/stat : 16814 (VALCSP) R 16812 16814 16458 0 -1 4194304 30842 0 0 0 119 13 0 0 25 0 1 0 246494318 132476928 30820 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 10461825 0 0 4096 0 0 0 0 17 1 0 0
/proc/16814/statm: 32343 30820 65 8 0 32015 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 129372

[startup+2.97947 s]
/proc/loadavg: 1.95 1.36 0.89 3/73 16815
/proc/meminfo: memFree=1023336/2055920 swapFree=4184804/4192956
[pid=16814] ppid=16812 vsize=179264 CPUtime=2.96
/proc/16814/stat : 16814 (VALCSP) R 16812 16814 16458 0 -1 4194304 43332 0 0 0 276 20 0 0 25 0 1 0 246494318 183566336 43310 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528723 0 0 4096 0 0 0 0 17 1 0 0
/proc/16814/statm: 44816 43310 65 8 0 44488 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 179264

[startup+6.26878 s]
/proc/loadavg: 1.95 1.37 0.90 3/73 16815
/proc/meminfo: memFree=906216/2055920 swapFree=4184804/4192956
[pid=16814] ppid=16812 vsize=279896 CPUtime=6.23
/proc/16814/stat : 16814 (VALCSP) R 16812 16814 16458 0 -1 4194304 68564 0 0 0 592 31 0 0 25 0 1 0 246494318 286613504 68542 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528660 0 0 4096 0 0 0 0 17 1 0 0
/proc/16814/statm: 69974 68542 65 8 0 69646 0
Current children cumulated CPU time (s) 6.23
Current children cumulated vsize (KiB) 279896

[startup+12.7364 s]
/proc/loadavg: 1.95 1.38 0.90 3/73 16815
/proc/meminfo: memFree=669552/2055920 swapFree=4184804/4192956
[pid=16814] ppid=16812 vsize=476068 CPUtime=12.67
/proc/16814/stat : 16814 (VALCSP) R 16812 16814 16458 0 -1 4194304 117688 0 0 0 1215 52 0 0 25 0 1 0 246494318 487493632 117666 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 10466253 0 0 4096 0 0 0 0 17 1 0 0
/proc/16814/statm: 119017 117666 65 8 0 118689 0
Current children cumulated CPU time (s) 12.67
Current children cumulated vsize (KiB) 476068

[startup+25.5517 s]
/proc/loadavg: 1.96 1.41 0.92 3/73 16815
/proc/meminfo: memFree=240048/2055920 swapFree=4184804/4192956
[pid=16814] ppid=16812 vsize=865544 CPUtime=25.44
/proc/16814/stat : 16814 (VALCSP) R 16812 16814 16458 0 -1 4194304 215317 0 0 0 2449 95 0 0 25 0 1 0 246494318 886317056 215295 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 10489043 0 0 4096 0 0 0 0 17 1 0 0
/proc/16814/statm: 216386 215295 66 8 0 216058 0
Current children cumulated CPU time (s) 25.44
Current children cumulated vsize (KiB) 865544



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+27.0878 s]
/proc/loadavg: 1.96 1.41 0.92 3/73 16815
/proc/meminfo: memFree=121136/2055920 swapFree=4184804/4192956
[pid=16814] ppid=16812 vsize=953312 CPUtime=26.97
/proc/16814/stat : 16814 (VALCSP) R 16812 16814 16458 0 -1 4194304 236405 0 0 0 2594 103 0 0 25 0 1 0 246494318 976191488 236383 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134523284 0 0 4096 0 0 0 0 17 1 0 0
/proc/16814/statm: 238328 236383 68 8 0 238000 0
Current children cumulated CPU time (s) 26.97
Current children cumulated vsize (KiB) 953312

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 27.2441
CPU time (s): 27.1229
CPU user time (s): 25.9421
CPU system time (s): 1.18082
CPU usage (%): 99.5551
Max. virtual memory (cumulated for all children) (KiB): 953312

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 25.9421
system time used= 1.18082
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 236405
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= 335

runsolver used 0.033994 s user time and 0.079987 s system time

The end



Launcher Data (download as text)




Begin job on node56 on Tue Jan 16 20:56:01 UTC 2007


IDJOB= 269534
IDBENCH= 6943
IDSOLVER= 90
FILE ID= node56/269534-1168980960

PBS_JOBID= 3566364

Free space on /tmp= 66556 MiB

SOLVER NAME= VALCSP 3.1
BENCH NAME= HOME/pub/bench/CPAI06/haystacks/haystacks_52.xml
COMMAND LINE= /tmp/evaluation/269534-1168980960/VALCSP /tmp/evaluation/269534-1168980960/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node56/watcher-269534-1168980960 -o ROOT/results/node56/solver-269534-1168980960 -C 1800 -M 900  /tmp/evaluation/269534-1168980960/VALCSP /tmp/evaluation/269534-1168980960/unknown.xml

META MD5SUM SOLVER= d4fc2c4e0b0392ee9c79e754aa39e238
MD5SUM BENCH=  bfebe5df1905949972c2e283719f815b

RANDOM SEED= 913295013

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		: 3000.232
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:       1186696 kB
Buffers:         30908 kB
Cached:         157616 kB
SwapCached:       2216 kB
Active:         627452 kB
Inactive:       166360 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1186696 kB
SwapTotal:     4192956 kB
SwapFree:      4184804 kB
Dirty:            8468 kB
Writeback:           0 kB
Mapped:         613048 kB
Slab:            59532 kB
Committed_AS:  5317404 kB
PageTables:       2964 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= 66556 MiB



End job on node56 on Tue Jan 16 20:56:30 UTC 2007