Trace number 245880

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) 92.6989 93.2645

General information on the benchmark

NamelargeQueens/
queens-400.xml
MD5SUM367861c7e3ea4a3a4550c74e92b0ac99
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark15.5676
SatisfiableYES
(Un)Satisfiability was proved
Number of variables400
Number of constraints79800
Maximum constraint arity2
Maximum domain size400
Number of constraints which are defined in extension0
Number of constraints which are defined in intension79800
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/node19/watcher-245880-1168383209 -o ROOT/results/node19/solver-245880-1168383209 -C 1800 -M 900 /tmp/evaluation/245880-1168383209/VALCSP /tmp/evaluation/245880-1168383209/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: 0.71 0.64 0.97 4/82 20475
/proc/meminfo: memFree=1737896/2055920 swapFree=4171244/4192956
[pid=20474] ppid=20472 vsize=9016 CPUtime=0
/proc/20474/stat : 20474 (VALCSP) R 20472 20474 20407 0 -1 4194304 1533 0 0 0 0 0 0 0 18 0 1 0 186715692 9232384 1511 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 7919227 0 0 4096 0 0 0 0 17 1 0 0
/proc/20474/statm: 2254 1522 65 8 0 1926 0

[startup+0.116639 s]
/proc/loadavg: 0.71 0.64 0.97 4/82 20475
/proc/meminfo: memFree=1737896/2055920 swapFree=4171244/4192956
[pid=20474] ppid=20472 vsize=9676 CPUtime=0.1
/proc/20474/stat : 20474 (VALCSP) R 20472 20474 20407 0 -1 4194304 1701 0 0 0 10 0 0 0 18 0 1 0 186715692 9908224 1679 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/20474/statm: 2419 1679 65 8 0 2091 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 9676

[startup+0.527715 s]
/proc/loadavg: 0.71 0.64 0.97 4/82 20475
/proc/meminfo: memFree=1737896/2055920 swapFree=4171244/4192956
[pid=20474] ppid=20472 vsize=13504 CPUtime=0.51
/proc/20474/stat : 20474 (VALCSP) R 20472 20474 20407 0 -1 4194304 2647 0 0 0 51 0 0 0 22 0 1 0 186715692 13828096 2625 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530360 0 0 4096 0 0 0 0 17 0 0 0
/proc/20474/statm: 3376 2625 65 8 0 3048 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 13504

[startup+1.34786 s]
/proc/loadavg: 0.71 0.64 0.97 4/82 20971
/proc/meminfo: memFree=1717480/2055920 swapFree=4171244/4192956
[pid=20474] ppid=20472 vsize=21028 CPUtime=1.29
/proc/20474/stat : 20474 (VALCSP) R 20472 20474 20407 0 -1 4194304 4538 0 0 0 128 1 0 0 25 0 1 0 186715692 21532672 4516 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530216 0 0 4096 0 0 0 0 17 0 0 0
/proc/20474/statm: 5257 4516 65 8 0 4929 0
Current children cumulated CPU time (s) 1.29
Current children cumulated vsize (KiB) 21028

[startup+2.98517 s]
/proc/loadavg: 0.81 0.66 0.98 3/90 21134
/proc/meminfo: memFree=1689688/2055920 swapFree=4171244/4192956
[pid=20474] ppid=20472 vsize=37396 CPUtime=2.93
/proc/20474/stat : 20474 (VALCSP) R 20472 20474 20407 0 -1 4194304 8636 0 0 0 290 3 0 0 25 0 1 0 186715692 38293504 8614 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 0 0 0
/proc/20474/statm: 9349 8614 65 8 0 9021 0
Current children cumulated CPU time (s) 2.93
Current children cumulated vsize (KiB) 37396

[startup+6.26879 s]
/proc/loadavg: 0.81 0.66 0.98 3/87 21135
/proc/meminfo: memFree=1527088/2055920 swapFree=4171244/4192956
[pid=20474] ppid=20472 vsize=69604 CPUtime=6.2
/proc/20474/stat : 20474 (VALCSP) R 20472 20474 20407 0 -1 4194304 16674 0 0 0 614 6 0 0 25 0 1 0 186715692 71274496 16652 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530975 0 0 4096 0 0 0 0 17 0 0 0
/proc/20474/statm: 17401 16652 65 8 0 17073 0
Current children cumulated CPU time (s) 6.2
Current children cumulated vsize (KiB) 69604

[startup+12.729 s]
/proc/loadavg: 0.99 0.70 0.99 3/87 21135
/proc/meminfo: memFree=1223672/2055920 swapFree=4171244/4192956
[pid=20474] ppid=20472 vsize=132568 CPUtime=12.63
/proc/20474/stat : 20474 (VALCSP) R 20472 20474 20407 0 -1 4194304 32436 0 0 0 1251 12 0 0 25 0 1 0 186715692 135749632 32414 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530960 0 0 4096 0 0 0 0 17 0 0 0
/proc/20474/statm: 33142 32414 65 8 0 32814 0
Current children cumulated CPU time (s) 12.63
Current children cumulated vsize (KiB) 132568

[startup+25.5434 s]
/proc/loadavg: 1.15 0.75 1.00 3/87 21135
/proc/meminfo: memFree=718664/2055920 swapFree=4171244/4192956
[pid=20474] ppid=20472 vsize=258100 CPUtime=25.37
/proc/20474/stat : 20474 (VALCSP) R 20472 20474 20407 0 -1 4194304 63801 0 0 0 2511 26 0 0 25 0 1 0 186715692 264294400 63779 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530227 0 0 4096 0 0 0 0 17 0 0 0
/proc/20474/statm: 64525 63779 65 8 0 64197 0
Current children cumulated CPU time (s) 25.37
Current children cumulated vsize (KiB) 258100

[startup+51.1822 s]
/proc/loadavg: 1.44 0.84 1.02 3/87 21136
/proc/meminfo: memFree=827016/2055920 swapFree=4171244/4192956
[pid=20474] ppid=20472 vsize=509032 CPUtime=50.84
/proc/20474/stat : 20474 (VALCSP) R 20472 20474 20407 0 -1 4194304 126530 0 0 0 5032 52 0 0 25 0 1 0 186715692 521248768 126508 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530255 0 0 4096 0 0 0 0 17 0 0 0
/proc/20474/statm: 127258 126508 65 8 0 126930 0
Current children cumulated CPU time (s) 50.84
Current children cumulated vsize (KiB) 509032



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+93.1281 s]
/proc/loadavg: 1.73 1.00 1.07 3/87 21136
/proc/meminfo: memFree=409800/2055920 swapFree=4171244/4192956
[pid=20474] ppid=20472 vsize=921932 CPUtime=92.56
/proc/20474/stat : 20474 (VALCSP) R 20472 20474 20407 0 -1 4194304 229768 0 0 0 9164 92 0 0 25 0 1 0 186715692 944058368 229746 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 0 0 0
/proc/20474/statm: 230483 229746 65 8 0 230155 0
Current children cumulated CPU time (s) 92.56
Current children cumulated vsize (KiB) 921932

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 93.2645
CPU time (s): 92.6989
CPU user time (s): 91.6481
CPU system time (s): 1.05084
CPU usage (%): 99.3936
Max. virtual memory (cumulated for all children) (KiB): 921932

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 91.6481
system time used= 1.05084
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 229768
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= 3426

runsolver used 0.086986 s user time and 0.250961 s system time

The end



Launcher Data (download as text)




Begin job on node19 on Tue Jan  9 22:53:31 UTC 2007


IDJOB= 245880
IDBENCH= 10310
FILE ID= node19/245880-1168383209

PBS_JOBID= 3522482

Free space on /tmp= 66536 MiB

BENCH NAME= HOME/pub/bench/CPAI06/largeQueens/queens-400.xml
COMMAND LINE= /tmp/evaluation/245880-1168383209/VALCSP /tmp/evaluation/245880-1168383209/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node19/watcher-245880-1168383209 -o ROOT/results/node19/solver-245880-1168383209 -C 1800 -M 900  /tmp/evaluation/245880-1168383209/VALCSP /tmp/evaluation/245880-1168383209/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  367861c7e3ea4a3a4550c74e92b0ac99

RANDOM SEED= 593963630

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		: 3000.260
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		: 3000.260
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:       1739080 kB
Buffers:         45268 kB
Cached:         178936 kB
SwapCached:      10396 kB
Active:         174312 kB
Inactive:        85548 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1739080 kB
SwapTotal:     4192956 kB
SwapFree:      4171244 kB
Dirty:           26128 kB
Writeback:           0 kB
Mapped:          44684 kB
Slab:            41908 kB
Committed_AS:  5473776 kB
PageTables:       2248 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= 66449 MiB



End job on node19 on Tue Jan  9 22:55:04 UTC 2007