Trace number 268481

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) 95.4965 95.9619

General information on the benchmark

Namefapp/fapp36-40/fapp36/
fapp36-2000-1.xml
MD5SUM74504524e8a319c1310e9487cb947f0c
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 benchmark7.97579
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables2000
Number of constraints18600
Maximum constraint arity2
Maximum domain size454
Number of constraints which are defined in extension0
Number of constraints which are defined in intension18600
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/node6/watcher-268481-1168979220 -o ROOT/results/node6/solver-268481-1168979220 -C 1800 -M 900 /tmp/evaluation/268481-1168979220/VALCSP /tmp/evaluation/268481-1168979220/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: 1.93 1.85 1.42 5/86 9265
/proc/meminfo: memFree=1749984/2055924 swapFree=4165736/4192956
[pid=9264] ppid=9262 vsize=64992 CPUtime=0.1
/proc/9264/stat : 9264 (VALCSP) R 9262 9264 9169 0 -1 4194304 15875 0 0 0 4 6 0 0 20 0 1 0 246317414 66551808 15853 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529344 0 0 4096 0 0 0 0 17 1 0 0
/proc/9264/statm: 16248 15853 65 8 0 15920 0

[startup+0.212872 s]
/proc/loadavg: 1.93 1.85 1.42 5/86 9265
/proc/meminfo: memFree=1749984/2055924 swapFree=4165736/4192956
[pid=9264] ppid=9262 vsize=65784 CPUtime=0.2
/proc/9264/stat : 9264 (VALCSP) R 9262 9264 9169 0 -1 4194304 16078 0 0 0 14 6 0 0 21 0 1 0 246317414 67362816 16056 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529359 0 0 4096 0 0 0 0 17 1 0 0
/proc/9264/statm: 16446 16056 65 8 0 16118 0
Current children cumulated CPU time (s) 0.2
Current children cumulated vsize (KiB) 65784

[startup+0.620919 s]
/proc/loadavg: 1.93 1.85 1.42 5/86 9265
/proc/meminfo: memFree=1749984/2055924 swapFree=4165736/4192956
[pid=9264] ppid=9262 vsize=68952 CPUtime=0.6
/proc/9264/stat : 9264 (VALCSP) R 9262 9264 9169 0 -1 4194304 16889 0 0 0 54 6 0 0 25 0 1 0 246317414 70606848 16867 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/9264/statm: 17238 16867 65 8 0 16910 0
Current children cumulated CPU time (s) 0.6
Current children cumulated vsize (KiB) 68952

[startup+1.44201 s]
/proc/loadavg: 1.93 1.86 1.42 3/86 9265
/proc/meminfo: memFree=1677408/2055924 swapFree=4165736/4192956
[pid=9264] ppid=9262 vsize=75288 CPUtime=1.42
/proc/9264/stat : 9264 (VALCSP) R 9262 9264 9169 0 -1 4194304 18464 0 0 0 135 7 0 0 25 0 1 0 246317414 77094912 18442 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/9264/statm: 18822 18442 65 8 0 18494 0
Current children cumulated CPU time (s) 1.42
Current children cumulated vsize (KiB) 75288

[startup+3.07921 s]
/proc/loadavg: 1.93 1.86 1.42 3/86 9265
/proc/meminfo: memFree=1667616/2055924 swapFree=4165736/4192956
[pid=9264] ppid=9262 vsize=90732 CPUtime=3.06
/proc/9264/stat : 9264 (VALCSP) R 9262 9264 9169 0 -1 4194304 22327 0 0 0 297 9 0 0 25 0 1 0 246317414 92909568 22305 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134528723 0 0 4096 0 0 0 0 17 1 0 0
/proc/9264/statm: 22683 22305 65 8 0 22355 0
Current children cumulated CPU time (s) 3.06
Current children cumulated vsize (KiB) 90732

[startup+6.36959 s]
/proc/loadavg: 1.93 1.86 1.42 3/86 9265
/proc/meminfo: memFree=1636640/2055924 swapFree=4165736/4192956
[pid=9264] ppid=9262 vsize=120168 CPUtime=6.32
/proc/9264/stat : 9264 (VALCSP) R 9262 9264 9169 0 -1 4194304 29678 0 0 0 621 11 0 0 25 0 1 0 246317414 123052032 29656 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/9264/statm: 30042 29656 65 8 0 29714 0
Current children cumulated CPU time (s) 6.32
Current children cumulated vsize (KiB) 120168

[startup+12.8263 s]
/proc/loadavg: 1.94 1.86 1.43 3/86 9265
/proc/meminfo: memFree=1574816/2055924 swapFree=4165736/4192956
[pid=9264] ppid=9262 vsize=179304 CPUtime=12.75
/proc/9264/stat : 9264 (VALCSP) R 9262 9264 9169 0 -1 4194304 44454 0 0 0 1258 17 0 0 25 0 1 0 246317414 183607296 44432 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134528612 0 0 4096 0 0 0 0 17 1 0 0
/proc/9264/statm: 44826 44432 65 8 0 44498 0
Current children cumulated CPU time (s) 12.75
Current children cumulated vsize (KiB) 179304

[startup+25.6498 s]
/proc/loadavg: 1.95 1.86 1.43 3/86 9265
/proc/meminfo: memFree=1465440/2055924 swapFree=4165736/4192956
[pid=9264] ppid=9262 vsize=290712 CPUtime=25.52
/proc/9264/stat : 9264 (VALCSP) R 9262 9264 9169 0 -1 4194304 72315 0 0 0 2523 29 0 0 25 0 1 0 246317414 297689088 72293 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529344 0 0 4096 0 0 0 0 17 1 0 0
/proc/9264/statm: 72678 72293 65 8 0 72350 0
Current children cumulated CPU time (s) 25.52
Current children cumulated vsize (KiB) 290712

[startup+51.2959 s]
/proc/loadavg: 1.97 1.87 1.45 3/86 9265
/proc/meminfo: memFree=1234528/2055924 swapFree=4165736/4192956
[pid=9264] ppid=9262 vsize=521448 CPUtime=51.04
/proc/9264/stat : 9264 (VALCSP) R 9262 9264 9169 0 -1 4194304 130014 0 0 0 5051 53 0 0 25 0 1 0 246317414 533962752 129992 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529346 0 0 4096 0 0 0 0 17 1 0 0
/proc/9264/statm: 130362 129992 65 8 0 130034 0
Current children cumulated CPU time (s) 51.04
Current children cumulated vsize (KiB) 521448



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+95.8101 s]
/proc/loadavg: 2.02 1.90 1.48 3/86 9265
/proc/meminfo: memFree=827424/2055924 swapFree=4165736/4192956
[pid=9264] ppid=9262 vsize=922464 CPUtime=95.34
/proc/9264/stat : 9264 (VALCSP) R 9262 9264 9169 0 -1 4194304 230262 0 0 0 9439 95 0 0 25 0 1 0 246317414 944603136 230240 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/9264/statm: 230616 230240 65 8 0 230288 0
Current children cumulated CPU time (s) 95.34
Current children cumulated vsize (KiB) 922464

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 95.9619
CPU time (s): 95.4965
CPU user time (s): 94.3926
CPU system time (s): 1.10383
CPU usage (%): 99.5149
Max. virtual memory (cumulated for all children) (KiB): 922464

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 94.3927
system time used= 1.10383
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 230262
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= 2983

runsolver used 0.135979 s user time and 0.298954 s system time

The end



Launcher Data (download as text)




Begin job on node6 on Tue Jan 16 20:27:00 UTC 2007


IDJOB= 268481
IDBENCH= 4184
IDSOLVER= 90
FILE ID= node6/268481-1168979220

PBS_JOBID= 3565974

Free space on /tmp= 66561 MiB

SOLVER NAME= VALCSP 3.1
BENCH NAME= HOME/pub/bench/CPAI06/fapp/fapp36-40/fapp36/fapp36-2000-1.xml
COMMAND LINE= /tmp/evaluation/268481-1168979220/VALCSP /tmp/evaluation/268481-1168979220/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node6/watcher-268481-1168979220 -o ROOT/results/node6/solver-268481-1168979220 -C 1800 -M 900  /tmp/evaluation/268481-1168979220/VALCSP /tmp/evaluation/268481-1168979220/unknown.xml

META MD5SUM SOLVER= d4fc2c4e0b0392ee9c79e754aa39e238
MD5SUM BENCH=  74504524e8a319c1310e9487cb947f0c

RANDOM SEED= 629059631

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		: 3000.240
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		: 3000.240
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:      2055924 kB
MemFree:       1750400 kB
Buffers:         43340 kB
Cached:         160292 kB
SwapCached:       2476 kB
Active:          59120 kB
Inactive:       187216 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055924 kB
LowFree:       1750400 kB
SwapTotal:     4192956 kB
SwapFree:      4165736 kB
Dirty:            2780 kB
Writeback:           0 kB
Mapped:          53144 kB
Slab:            43984 kB
Committed_AS:  7409800 kB
PageTables:       2324 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= 66561 MiB



End job on node6 on Tue Jan 16 20:28:36 UTC 2007