Trace number 269546

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) 27.9368 28.1589

General information on the benchmark

Namehaystacks/
haystacks_53.xml
MD5SUMa0098767a588d03f7d6994873b18d5bf
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 variables2809
Number of constraints73086
Maximum constraint arity2
Maximum domain size53
Number of constraints which are defined in extension0
Number of constraints which are defined in intension73086
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/node44/watcher-269546-1168980976 -o ROOT/results/node44/solver-269546-1168980976 -C 1800 -M 900 /tmp/evaluation/269546-1168980976/VALCSP /tmp/evaluation/269546-1168980976/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: 1.98 1.49 1.22 5/73 27553
/proc/meminfo: memFree=1178784/2055920 swapFree=4191892/4192956
[pid=27552] ppid=27550 vsize=9816 CPUtime=0
/proc/27552/stat : 27552 (VALCSP) R 27550 27552 27245 0 -1 4194304 2083 0 0 0 0 0 0 0 20 0 1 0 246496810 10051584 2061 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 11716219 0 0 4096 0 0 0 0 17 1 0 0
/proc/27552/statm: 2454 2061 64 8 0 2126 0

[startup+0.119941 s]
/proc/loadavg: 1.98 1.49 1.22 5/73 27553
/proc/meminfo: memFree=1178784/2055920 swapFree=4191892/4192956
[pid=27552] ppid=27550 vsize=86532 CPUtime=0.1
/proc/27552/stat : 27552 (VALCSP) R 27550 27552 27245 0 -1 4194304 20410 0 0 0 2 8 0 0 20 0 1 0 246496810 88608768 20388 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134533496 0 0 4096 0 0 0 0 17 1 0 0
/proc/27552/statm: 21633 20388 64 8 0 21305 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 86532

[startup+0.528978 s]
/proc/loadavg: 1.98 1.49 1.22 5/73 27553
/proc/meminfo: memFree=1178784/2055920 swapFree=4191892/4192956
[pid=27552] ppid=27550 vsize=110848 CPUtime=0.52
/proc/27552/stat : 27552 (VALCSP) R 27550 27552 27245 0 -1 4194304 25998 0 0 0 41 11 0 0 24 0 1 0 246496810 113508352 25976 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529471 0 0 4096 0 0 0 0 17 1 0 0
/proc/27552/statm: 27712 25976 65 8 0 27384 0
Current children cumulated CPU time (s) 0.52
Current children cumulated vsize (KiB) 110848

[startup+1.35006 s]
/proc/loadavg: 1.98 1.49 1.22 3/73 27553
/proc/meminfo: memFree=1056608/2055920 swapFree=4191892/4192956
[pid=27552] ppid=27550 vsize=135244 CPUtime=1.32
/proc/27552/stat : 27552 (VALCSP) R 27550 27552 27245 0 -1 4194304 32094 0 0 0 119 13 0 0 25 0 1 0 246496810 138489856 32072 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529332 0 0 4096 0 0 0 0 17 1 0 0
/proc/27552/statm: 33811 32072 65 8 0 33483 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 135244

[startup+2.98723 s]
/proc/loadavg: 1.98 1.50 1.23 3/73 27553
/proc/meminfo: memFree=1015072/2055920 swapFree=4191892/4192956
[pid=27552] ppid=27550 vsize=184108 CPUtime=2.95
/proc/27552/stat : 27552 (VALCSP) R 27550 27552 27245 0 -1 4194304 44363 0 0 0 276 19 0 0 25 0 1 0 246496810 188526592 44341 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528695 0 0 4096 0 0 0 0 17 1 0 0
/proc/27552/statm: 46027 44341 65 8 0 45699 0
Current children cumulated CPU time (s) 2.95
Current children cumulated vsize (KiB) 184108

[startup+6.26657 s]
/proc/loadavg: 1.98 1.50 1.23 3/73 27553
/proc/meminfo: memFree=900256/2055920 swapFree=4191892/4192956
[pid=27552] ppid=27550 vsize=280540 CPUtime=6.2
/proc/27552/stat : 27552 (VALCSP) R 27550 27552 27245 0 -1 4194304 68504 0 0 0 592 28 0 0 25 0 1 0 246496810 287272960 68482 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528694 0 0 4096 0 0 0 0 17 1 0 0
/proc/27552/statm: 70135 68482 65 8 0 69807 0
Current children cumulated CPU time (s) 6.2
Current children cumulated vsize (KiB) 280540

[startup+12.7302 s]
/proc/loadavg: 1.98 1.51 1.24 3/73 27553
/proc/meminfo: memFree=676520/2055920 swapFree=4191892/4192956
[pid=27552] ppid=27550 vsize=471788 CPUtime=12.62
/proc/27552/stat : 27552 (VALCSP) R 27550 27552 27245 0 -1 4194304 116419 0 0 0 1213 49 0 0 25 0 1 0 246496810 483110912 116397 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/27552/statm: 117947 116397 65 8 0 117619 0
Current children cumulated CPU time (s) 12.62
Current children cumulated vsize (KiB) 471788

[startup+25.5455 s]
/proc/loadavg: 1.98 1.53 1.24 3/73 27553
/proc/meminfo: memFree=260136/2055920 swapFree=4191892/4192956
[pid=27552] ppid=27550 vsize=848392 CPUtime=25.34
/proc/27552/stat : 27552 (VALCSP) R 27550 27552 27245 0 -1 4194304 210797 0 0 0 2444 90 0 0 25 0 1 0 246496810 868753408 210775 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529341 0 0 4096 0 0 0 0 17 1 0 0
/proc/27552/statm: 212098 210775 66 8 0 211770 0
Current children cumulated CPU time (s) 25.34
Current children cumulated vsize (KiB) 848392



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+28.0058 s]
/proc/loadavg: 1.98 1.54 1.25 3/73 27553
/proc/meminfo: memFree=149096/2055920 swapFree=4191892/4192956
[pid=27552] ppid=27550 vsize=922336 CPUtime=27.78
/proc/27552/stat : 27552 (VALCSP) R 27550 27552 27245 0 -1 4194304 229337 0 0 0 2680 98 0 0 25 0 1 0 246496810 944472064 229315 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 11724166 0 0 4096 0 0 0 0 17 1 0 0
/proc/27552/statm: 230584 229315 66 8 0 230256 0
Current children cumulated CPU time (s) 27.78
Current children cumulated vsize (KiB) 922336

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 28.1589
CPU time (s): 27.9368
CPU user time (s): 26.8059
CPU system time (s): 1.13083
CPU usage (%): 99.2112
Max. virtual memory (cumulated for all children) (KiB): 922336

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 26.8059
system time used= 1.13083
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 229337
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= 7
involuntary context switches= 626

runsolver used 0.026995 s user time and 0.082987 s system time

The end



Launcher Data (download as text)




Begin job on node44 on Tue Jan 16 20:56:17 UTC 2007


IDJOB= 269546
IDBENCH= 6955
IDSOLVER= 90
FILE ID= node44/269546-1168980976

PBS_JOBID= 3566379

Free space on /tmp= 66555 MiB

SOLVER NAME= VALCSP 3.1
BENCH NAME= HOME/pub/bench/CPAI06/haystacks/haystacks_53.xml
COMMAND LINE= /tmp/evaluation/269546-1168980976/VALCSP /tmp/evaluation/269546-1168980976/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node44/watcher-269546-1168980976 -o ROOT/results/node44/solver-269546-1168980976 -C 1800 -M 900  /tmp/evaluation/269546-1168980976/VALCSP /tmp/evaluation/269546-1168980976/unknown.xml

META MD5SUM SOLVER= d4fc2c4e0b0392ee9c79e754aa39e238
MD5SUM BENCH=  a0098767a588d03f7d6994873b18d5bf

RANDOM SEED= 800733737

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		: 3000.213
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		: 3000.213
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:       1186688 kB
Buffers:         25928 kB
Cached:         167672 kB
SwapCached:        268 kB
Active:         615144 kB
Inactive:       180784 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1186688 kB
SwapTotal:     4192956 kB
SwapFree:      4191892 kB
Dirty:            8976 kB
Writeback:           0 kB
Mapped:         612076 kB
Slab:            57712 kB
Committed_AS:  5217104 kB
PageTables:       2844 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= 66555 MiB



End job on node44 on Tue Jan 16 20:56:46 UTC 2007