Trace number 202157

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) 76.0544 76.4276

General information on the benchmark

Namefapp/fapp21-25/fapp24/
fapp24-2000-5.xml
MD5SUM192c573afedccffc4f45fb22e2d924b6
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 benchmark6.91295
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables2000
Number of constraints26753
Maximum constraint arity2
Maximum domain size302
Number of constraints which are defined in extension0
Number of constraints which are defined in intension26753
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/node2/watcher-202157-1168150632 -o ROOT/results/node2/solver-202157-1168150632 -C 1800 -M 900 /tmp/evaluation/202157-1168150632/VALCSP /tmp/evaluation/202157-1168150632/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: 1.57 1.75 1.89 5/86 344
/proc/meminfo: memFree=1231240/2055920 swapFree=4191880/4192956
[pid=343] ppid=341 vsize=18540 CPUtime=0
/proc/343/stat : 343 (runsolver) R 341 343 31931 0 -1 4194368 16 0 0 0 0 0 0 0 21 0 1 0 163458851 18984960 279 18446744073709551615 4194304 4267372 548682069088 18446744073709551615 206381313319 0 0 4096 24578 0 0 0 17 1 0 0
/proc/343/statm: 4635 279 244 17 0 2626 0

[startup+0.156391 s]
/proc/loadavg: 1.57 1.75 1.89 5/86 344
/proc/meminfo: memFree=1231240/2055920 swapFree=4191880/4192956
[pid=343] ppid=341 vsize=61364 CPUtime=0.14
/proc/343/stat : 343 (VALCSP) R 341 343 31931 0 -1 4194304 14949 0 0 0 8 6 0 0 22 0 1 0 163458851 62836736 14927 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530207 0 0 4096 0 0 0 0 17 1 0 0
/proc/343/statm: 15341 14927 65 8 0 15013 0
Current children cumulated CPU time (s) 0.14
Current children cumulated vsize (KiB) 61364

[startup+0.564463 s]
/proc/loadavg: 1.57 1.75 1.89 5/86 344
/proc/meminfo: memFree=1231240/2055920 swapFree=4191880/4192956
[pid=343] ppid=341 vsize=65984 CPUtime=0.55
/proc/343/stat : 343 (VALCSP) R 341 343 31931 0 -1 4194304 16078 0 0 0 49 6 0 0 25 0 1 0 163458851 67567616 16056 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530283 0 0 4096 0 0 0 0 17 1 0 0
/proc/343/statm: 16496 16056 65 8 0 16168 0
Current children cumulated CPU time (s) 0.55
Current children cumulated vsize (KiB) 65984

[startup+1.38562 s]
/proc/loadavg: 1.57 1.75 1.89 3/86 344
/proc/meminfo: memFree=1159368/2055920 swapFree=4191880/4192956
[pid=343] ppid=341 vsize=75884 CPUtime=1.36
/proc/343/stat : 343 (VALCSP) R 341 343 31931 0 -1 4194304 18561 0 0 0 129 7 0 0 25 0 1 0 163458851 77705216 18539 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530960 0 0 4096 0 0 0 0 17 1 0 0
/proc/343/statm: 18971 18539 65 8 0 18643 0
Current children cumulated CPU time (s) 1.36
Current children cumulated vsize (KiB) 75884

[startup+3.02292 s]
/proc/loadavg: 1.57 1.75 1.89 3/86 344
/proc/meminfo: memFree=1147336/2055920 swapFree=4191880/4192956
[pid=343] ppid=341 vsize=93440 CPUtime=3
/proc/343/stat : 343 (VALCSP) R 341 343 31931 0 -1 4194304 22952 0 0 0 291 9 0 0 25 0 1 0 163458851 95682560 22930 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530444 0 0 4096 0 0 0 0 17 1 0 0
/proc/343/statm: 23360 22930 65 8 0 23032 0
Current children cumulated CPU time (s) 3
Current children cumulated vsize (KiB) 93440

[startup+6.30852 s]
/proc/loadavg: 1.60 1.75 1.89 3/86 344
/proc/meminfo: memFree=1108552/2055920 swapFree=4191880/4192956
[pid=343] ppid=341 vsize=130664 CPUtime=6.27
/proc/343/stat : 343 (VALCSP) R 341 343 31931 0 -1 4194304 32262 0 0 0 614 13 0 0 25 0 1 0 163458851 133799936 32240 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530300 0 0 4096 0 0 0 0 17 1 0 0
/proc/343/statm: 32666 32240 65 8 0 32338 0
Current children cumulated CPU time (s) 6.27
Current children cumulated vsize (KiB) 130664

[startup+12.7717 s]
/proc/loadavg: 1.64 1.75 1.89 3/86 344
/proc/meminfo: memFree=1033416/2055920 swapFree=4191880/4192956
[pid=343] ppid=341 vsize=202472 CPUtime=12.7
/proc/343/stat : 343 (VALCSP) R 341 343 31931 0 -1 4194304 50199 0 0 0 1248 22 0 0 25 0 1 0 163458851 207331328 50177 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530948 0 0 4096 0 0 0 0 17 1 0 0
/proc/343/statm: 50618 50177 65 8 0 50290 0
Current children cumulated CPU time (s) 12.7
Current children cumulated vsize (KiB) 202472

[startup+25.5961 s]
/proc/loadavg: 1.72 1.77 1.90 3/86 344
/proc/meminfo: memFree=894280/2055920 swapFree=4191880/4192956
[pid=343] ppid=341 vsize=346352 CPUtime=25.46
/proc/343/stat : 343 (VALCSP) R 341 343 31931 0 -1 4194304 86175 0 0 0 2509 37 0 0 25 0 1 0 163458851 354664448 86153 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134531004 0 0 4096 0 0 0 0 17 1 0 0
/proc/343/statm: 86588 86153 65 8 0 86260 0
Current children cumulated CPU time (s) 25.46
Current children cumulated vsize (KiB) 346352

[startup+51.2448 s]
/proc/loadavg: 1.81 1.78 1.90 3/86 344
/proc/meminfo: memFree=598920/2055920 swapFree=4191880/4192956
[pid=343] ppid=341 vsize=637412 CPUtime=50.98
/proc/343/stat : 343 (VALCSP) R 341 343 31931 0 -1 4194304 158948 0 0 0 5029 69 0 0 25 0 1 0 163458851 652709888 158926 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530249 0 0 4096 0 0 0 0 17 1 0 0
/proc/343/statm: 159353 158926 65 8 0 159025 0
Current children cumulated CPU time (s) 50.98
Current children cumulated vsize (KiB) 637412



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+76.2774 s]
/proc/loadavg: 1.87 1.80 1.90 3/86 344
/proc/meminfo: memFree=309000/2055920 swapFree=4191880/4192956
[pid=343] ppid=341 vsize=922408 CPUtime=75.9
/proc/343/stat : 343 (VALCSP) R 341 343 31931 0 -1 4194304 230209 0 0 0 7490 100 0 0 25 0 1 0 163458851 944545792 230187 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530249 0 0 4096 0 0 0 0 17 1 0 0
/proc/343/statm: 230602 230187 65 8 0 230274 0
Current children cumulated CPU time (s) 75.9
Current children cumulated vsize (KiB) 922408

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 76.4276
CPU time (s): 76.0544
CPU user time (s): 74.9056
CPU system time (s): 1.14882
CPU usage (%): 99.5117
Max. virtual memory (cumulated for all children) (KiB): 922408

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 74.9056
system time used= 1.14882
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 230209
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= 2356

runsolver used 0.094985 s user time and 0.253961 s system time

The end



Launcher Data (download as text)




Begin job on node2 on Sun Jan  7 06:17:12 UTC 2007


IDJOB= 202157
IDBENCH= 3816
FILE ID= node2/202157-1168150632

PBS_JOBID= 3478163

Free space on /tmp= 66325 MiB

BENCH NAME= HOME/pub/bench/CPAI06/fapp/fapp21-25/fapp24/fapp24-2000-5.xml
COMMAND LINE= /tmp/evaluation/202157-1168150632/VALCSP /tmp/evaluation/202157-1168150632/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node2/watcher-202157-1168150632 -o ROOT/results/node2/solver-202157-1168150632 -C 1800 -M 900  /tmp/evaluation/202157-1168150632/VALCSP /tmp/evaluation/202157-1168150632/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  192c573afedccffc4f45fb22e2d924b6

RANDOM SEED= 442884471

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		: 3000.259
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	: 5931.00
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		: 3000.259
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:       1231656 kB
Buffers:         73184 kB
Cached:         565024 kB
SwapCached:        448 kB
Active:         400176 kB
Inactive:       355212 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1231656 kB
SwapTotal:     4192956 kB
SwapFree:      4191880 kB
Dirty:           10632 kB
Writeback:           0 kB
Mapped:         138692 kB
Slab:            53412 kB
Committed_AS:  3975552 kB
PageTables:       2548 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= 66325 MiB



End job on node2 on Sun Jan  7 06:18:29 UTC 2007