Trace number 202253

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) 74.9806 75.2339

General information on the benchmark

Namefapp/fapp21-25/fapp24/
fapp24-2000-4.xml
MD5SUM5fbe4146ea3bb95ea4606a5432d19742
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 benchmark6.95894
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/node14/watcher-202253-1168151049 -o ROOT/results/node14/solver-202253-1168151049 -C 1800 -M 900 /tmp/evaluation/202253-1168151049/VALCSP /tmp/evaluation/202253-1168151049/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: 1.89 1.76 1.74 5/94 20538
/proc/meminfo: memFree=1007048/2055920 swapFree=4182236/4192956
[pid=20537] ppid=20535 vsize=18540 CPUtime=0
/proc/20537/stat : 20537 (runsolver) R 20535 20537 20482 0 -1 4194368 16 0 0 0 0 0 0 0 21 0 1 0 163499804 18984960 279 18446744073709551615 4194304 4267372 548682069072 18446744073709551615 212234464551 0 0 4096 24578 0 0 0 17 1 0 0
/proc/20537/statm: 4635 279 244 17 0 2626 0

[startup+0.157682 s]
/proc/loadavg: 1.89 1.76 1.74 5/94 20538
/proc/meminfo: memFree=1007048/2055920 swapFree=4182236/4192956
[pid=20537] ppid=20535 vsize=61364 CPUtime=0.15
/proc/20537/stat : 20537 (VALCSP) R 20535 20537 20482 0 -1 4194304 14949 0 0 0 9 6 0 0 22 0 1 0 163499804 62836736 14927 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 1 0 0
/proc/20537/statm: 15341 14927 65 8 0 15013 0
Current children cumulated CPU time (s) 0.15
Current children cumulated vsize (KiB) 61364

[startup+0.565717 s]
/proc/loadavg: 1.89 1.76 1.74 5/94 20538
/proc/meminfo: memFree=1007048/2055920 swapFree=4182236/4192956
[pid=20537] ppid=20535 vsize=65984 CPUtime=0.55
/proc/20537/stat : 20537 (VALCSP) R 20535 20537 20482 0 -1 4194304 16078 0 0 0 49 6 0 0 25 0 1 0 163499804 67567616 16056 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/20537/statm: 16496 16056 65 8 0 16168 0
Current children cumulated CPU time (s) 0.55
Current children cumulated vsize (KiB) 65984

[startup+1.3868 s]
/proc/loadavg: 1.89 1.76 1.74 3/94 20538
/proc/meminfo: memFree=935432/2055920 swapFree=4182236/4192956
[pid=20537] ppid=20535 vsize=75488 CPUtime=1.37
/proc/20537/stat : 20537 (VALCSP) R 20535 20537 20482 0 -1 4194304 18471 0 0 0 130 7 0 0 25 0 1 0 163499804 77299712 18449 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530223 0 0 4096 0 0 0 0 17 1 0 0
/proc/20537/statm: 18872 18449 65 8 0 18544 0
Current children cumulated CPU time (s) 1.37
Current children cumulated vsize (KiB) 75488

[startup+3.0301 s]
/proc/loadavg: 1.89 1.76 1.74 3/94 20538
/proc/meminfo: memFree=922824/2055920 swapFree=4182236/4192956
[pid=20537] ppid=20535 vsize=93440 CPUtime=3
/proc/20537/stat : 20537 (VALCSP) R 20535 20537 20482 0 -1 4194304 22952 0 0 0 291 9 0 0 25 0 1 0 163499804 95682560 22930 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 1 0 0
/proc/20537/statm: 23360 22930 65 8 0 23032 0
Current children cumulated CPU time (s) 3
Current children cumulated vsize (KiB) 93440

[startup+6.31426 s]
/proc/loadavg: 1.89 1.77 1.74 3/94 20538
/proc/meminfo: memFree=883152/2055920 swapFree=4182236/4192956
[pid=20537] ppid=20535 vsize=131060 CPUtime=6.27
/proc/20537/stat : 20537 (VALCSP) R 20535 20537 20482 0 -1 4194304 32352 0 0 0 614 13 0 0 25 0 1 0 163499804 134205440 32330 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 1 0 0
/proc/20537/statm: 32765 32330 65 8 0 32437 0
Current children cumulated CPU time (s) 6.27
Current children cumulated vsize (KiB) 131060

[startup+12.7809 s]
/proc/loadavg: 1.90 1.77 1.75 3/94 20538
/proc/meminfo: memFree=806296/2055920 swapFree=4182236/4192956
[pid=20537] ppid=20535 vsize=202736 CPUtime=12.7
/proc/20537/stat : 20537 (VALCSP) R 20535 20537 20482 0 -1 4194304 50289 0 0 0 1250 20 0 0 25 0 1 0 163499804 207601664 50267 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 1 0 0
/proc/20537/statm: 50684 50267 65 8 0 50356 0
Current children cumulated CPU time (s) 12.7
Current children cumulated vsize (KiB) 202736

[startup+25.5981 s]
/proc/loadavg: 2.00 1.80 1.75 3/94 20538
/proc/meminfo: memFree=660568/2055920 swapFree=4182236/4192956
[pid=20537] ppid=20535 vsize=350312 CPUtime=25.47
/proc/20537/stat : 20537 (VALCSP) R 20535 20537 20482 0 -1 4194304 87166 0 0 0 2510 37 0 0 25 0 1 0 163499804 358719488 87144 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530948 0 0 4096 0 0 0 0 17 1 0 0
/proc/20537/statm: 87578 87144 65 8 0 87250 0
Current children cumulated CPU time (s) 25.47
Current children cumulated vsize (KiB) 350312

[startup+51.2455 s]
/proc/loadavg: 2.08 1.83 1.76 3/94 20538
/proc/meminfo: memFree=353816/2055920 swapFree=4182236/4192956
[pid=20537] ppid=20535 vsize=647312 CPUtime=50.99
/proc/20537/stat : 20537 (VALCSP) R 20535 20537 20482 0 -1 4194304 161423 0 0 0 5031 68 0 0 25 0 1 0 163499804 662847488 161401 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530283 0 0 4096 0 0 0 0 17 1 0 0
/proc/20537/statm: 161828 161401 65 8 0 161500 0
Current children cumulated CPU time (s) 50.99
Current children cumulated vsize (KiB) 647312



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+75.0886 s]
/proc/loadavg: 2.05 1.84 1.77 3/94 20538
/proc/meminfo: memFree=67864/2055920 swapFree=4182236/4192956
[pid=20537] ppid=20535 vsize=922408 CPUtime=74.83
/proc/20537/stat : 20537 (VALCSP) R 20535 20537 20482 0 -1 4194304 230209 0 0 0 7388 95 0 0 25 0 1 0 163499804 944545792 230187 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/20537/statm: 230602 230187 65 8 0 230274 0
Current children cumulated CPU time (s) 74.83
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): 75.2339
CPU time (s): 74.9806
CPU user time (s): 73.8858
CPU system time (s): 1.09483
CPU usage (%): 99.6633
Max. virtual memory (cumulated for all children) (KiB): 922408

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 73.8858
system time used= 1.09483
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= 3507

runsolver used 0.083987 s user time and 0.248962 s system time

The end



Launcher Data (download as text)




Begin job on node14 on Sun Jan  7 06:24:09 UTC 2007


IDJOB= 202253
IDBENCH= 3822
FILE ID= node14/202253-1168151049

PBS_JOBID= 3478227

Free space on /tmp= 66339 MiB

BENCH NAME= HOME/pub/bench/CPAI06/fapp/fapp21-25/fapp24/fapp24-2000-4.xml
COMMAND LINE= /tmp/evaluation/202253-1168151049/VALCSP /tmp/evaluation/202253-1168151049/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node14/watcher-202253-1168151049 -o ROOT/results/node14/solver-202253-1168151049 -C 1800 -M 900  /tmp/evaluation/202253-1168151049/VALCSP /tmp/evaluation/202253-1168151049/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  5fbe4146ea3bb95ea4606a5432d19742

RANDOM SEED= 735439707

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:       1007528 kB
Buffers:         36464 kB
Cached:         203720 kB
SwapCached:       4208 kB
Active:         866780 kB
Inactive:       108024 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1007528 kB
SwapTotal:     4192956 kB
SwapFree:      4182236 kB
Dirty:            3952 kB
Writeback:           0 kB
Mapped:         751424 kB
Slab:            57076 kB
Committed_AS:  5787796 kB
PageTables:       3580 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= 66339 MiB



End job on node14 on Sun Jan  7 06:25:24 UTC 2007