Trace number 237473

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 3.0? (MO) 28.3637 28.6391

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/node34/watcher-237473-1168348563 -o ROOT/results/node34/solver-237473-1168348563 -C 1800 -M 900 /tmp/evaluation/237473-1168348563/VALCSP /tmp/evaluation/237473-1168348563/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: 2.07 2.04 1.96 3/81 7466
/proc/meminfo: memFree=1728056/2055920 swapFree=4192812/4192956
[pid=7465] ppid=7463 vsize=3764 CPUtime=0
/proc/7465/stat : 7465 (VALCSP) R 7463 7465 7073 0 -1 4194304 636 0 0 0 0 0 0 0 20 0 1 0 183250093 3854336 614 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134534817 0 0 4096 0 0 0 0 17 1 0 0
/proc/7465/statm: 941 614 62 8 0 613 0

[startup+0.106499 s]
/proc/loadavg: 2.07 2.04 1.96 3/81 7466
/proc/meminfo: memFree=1728056/2055920 swapFree=4192812/4192956
[pid=7465] ppid=7463 vsize=65396 CPUtime=0.08
/proc/7465/stat : 7465 (VALCSP) R 7463 7465 7073 0 -1 4194304 15410 0 0 0 2 6 0 0 20 0 1 0 183250093 66965504 15388 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134534827 0 0 4096 0 0 0 0 17 1 0 0
/proc/7465/statm: 16349 15388 62 8 0 16021 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 65396

[startup+0.514523 s]
/proc/loadavg: 2.07 2.04 1.96 3/81 7466
/proc/meminfo: memFree=1728056/2055920 swapFree=4192812/4192956
[pid=7465] ppid=7463 vsize=102732 CPUtime=0.49
/proc/7465/stat : 7465 (VALCSP) R 7463 7465 7073 0 -1 4194304 24157 0 0 0 39 10 0 0 24 0 1 0 183250093 105197568 24135 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 8164643 0 0 4096 0 0 0 0 17 1 0 0
/proc/7465/statm: 25683 24135 65 8 0 25355 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 102732

[startup+1.33559 s]
/proc/loadavg: 2.07 2.04 1.96 3/81 7466
/proc/meminfo: memFree=1613368/2055920 swapFree=4192812/4192956
[pid=7465] ppid=7463 vsize=126500 CPUtime=1.3
/proc/7465/stat : 7465 (VALCSP) R 7463 7465 7073 0 -1 4194304 30129 0 0 0 118 12 0 0 25 0 1 0 183250093 129536000 30107 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530198 0 0 4096 0 0 0 0 17 1 0 0
/proc/7465/statm: 31625 30107 65 8 0 31297 0
Current children cumulated CPU time (s) 1.3
Current children cumulated vsize (KiB) 126500

[startup+2.97272 s]
/proc/loadavg: 2.07 2.04 1.96 3/81 7466
/proc/meminfo: memFree=1580664/2055920 swapFree=4192812/4192956
[pid=7465] ppid=7463 vsize=173692 CPUtime=2.93
/proc/7465/stat : 7465 (VALCSP) R 7463 7465 7073 0 -1 4194304 41932 0 0 0 274 19 0 0 25 0 1 0 183250093 177860608 41910 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530960 0 0 4096 0 0 0 0 17 1 0 0
/proc/7465/statm: 43423 41910 65 8 0 43095 0
Current children cumulated CPU time (s) 2.93
Current children cumulated vsize (KiB) 173692

[startup+6.25199 s]
/proc/loadavg: 2.15 2.06 1.97 3/81 7466
/proc/meminfo: memFree=1477944/2055920 swapFree=4192812/4192956
[pid=7465] ppid=7463 vsize=268604 CPUtime=6.17
/proc/7465/stat : 7465 (VALCSP) R 7463 7465 7073 0 -1 4194304 65713 0 0 0 587 30 0 0 25 0 1 0 183250093 275050496 65691 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 8160205 0 0 4096 0 0 0 0 17 1 0 0
/proc/7465/statm: 67151 65691 65 8 0 66823 0
Current children cumulated CPU time (s) 6.17
Current children cumulated vsize (KiB) 268604

[startup+12.7241 s]
/proc/loadavg: 2.13 2.05 1.97 3/81 7466
/proc/meminfo: memFree=1276920/2055920 swapFree=4192812/4192956
[pid=7465] ppid=7463 vsize=453796 CPUtime=12.59
/proc/7465/stat : 7465 (VALCSP) R 7463 7465 7073 0 -1 4194304 112122 0 0 0 1205 54 0 0 25 0 1 0 183250093 464687104 112100 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530319 0 0 4096 0 0 0 0 17 1 0 0
/proc/7465/statm: 113449 112100 65 8 0 113121 0
Current children cumulated CPU time (s) 12.59
Current children cumulated vsize (KiB) 453796

[startup+25.6151 s]
/proc/loadavg: 2.10 2.05 1.97 3/81 7466
/proc/meminfo: memFree=904440/2055920 swapFree=4192812/4192956
[pid=7465] ppid=7463 vsize=828896 CPUtime=25.37
/proc/7465/stat : 7465 (VALCSP) R 7463 7465 7073 0 -1 4194304 206118 0 0 0 2435 102 0 0 25 0 1 0 183250093 848789504 206096 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530229 0 0 4096 0 0 0 0 17 1 0 0
/proc/7465/statm: 207224 206096 66 8 0 206896 0
Current children cumulated CPU time (s) 25.37
Current children cumulated vsize (KiB) 828896



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+28.4868 s]
/proc/loadavg: 2.10 2.05 1.97 3/81 7466
/proc/meminfo: memFree=758392/2055920 swapFree=4192812/4192956
[pid=7465] ppid=7463 vsize=953364 CPUtime=28.2
/proc/7465/stat : 7465 (VALCSP) R 7463 7465 7073 0 -1 4194304 236414 0 0 0 2705 115 0 0 25 0 1 0 183250093 976244736 236392 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134523092 0 0 4096 0 0 0 0 17 1 0 0
/proc/7465/statm: 238341 236392 68 8 0 238013 0
Current children cumulated CPU time (s) 28.2
Current children cumulated vsize (KiB) 953364

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 28.6391
CPU time (s): 28.3637
CPU user time (s): 27.0599
CPU system time (s): 1.3038
CPU usage (%): 99.0383
Max. virtual memory (cumulated for all children) (KiB): 953364

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 27.0599
system time used= 1.3038
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 236414
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= 981

runsolver used 0.043993 s user time and 0.094985 s system time

The end



Launcher Data (download as text)




Begin job on node34 on Tue Jan  9 13:16:03 UTC 2007


IDJOB= 237473
IDBENCH= 6943
FILE ID= node34/237473-1168348563

PBS_JOBID= 3503592

Free space on /tmp= 66539 MiB

BENCH NAME= HOME/pub/bench/CPAI06/haystacks/haystacks_52.xml
COMMAND LINE= /tmp/evaluation/237473-1168348563/VALCSP /tmp/evaluation/237473-1168348563/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node34/watcher-237473-1168348563 -o ROOT/results/node34/solver-237473-1168348563 -C 1800 -M 900  /tmp/evaluation/237473-1168348563/VALCSP /tmp/evaluation/237473-1168348563/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  bfebe5df1905949972c2e283719f815b

RANDOM SEED= 590258975

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		: 3000.227
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		: 3000.227
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:       1730584 kB
Buffers:         11464 kB
Cached:          95092 kB
SwapCached:          0 kB
Active:         240640 kB
Inactive:        29180 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1730584 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            8460 kB
Writeback:           0 kB
Mapped:         181316 kB
Slab:            40536 kB
Committed_AS:  3601428 kB
PageTables:       2120 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= 66539 MiB



End job on node34 on Tue Jan  9 13:16:32 UTC 2007