Trace number 202661

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 3.0SAT 10.8783 10.9701

DiagnosticValue
CHECKS350977000
NODES64255

General information on the benchmark

Namerandom/rand-2-40-19/
rand-2-40-19-443-230-31_ext.xml
MD5SUM4c2847ddad0559921e4234b810d1d3ea
Bench Category2-ARY-EXT (binary constraints in extension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.863868
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables40
Number of constraints330
Maximum constraint arity2
Maximum domain size19
Number of constraints which are defined in extension330
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

10.96	s SATISFIABLE
10.96	v 5 2 14 12 16 7 18 15 0 18 14 18 14 12 0 4 13 10 14 2 16 2 2 0 3 11 15 14 18 10 7 14 18 15 10 11 0 12 16 15 
10.96	d CHECKS 3.50977e+08
10.96	d NODES 64255
10.96

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.1.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node39/watcher-202661-1168153156 -o ROOT/results/node39/solver-202661-1168153156 -C 1800 -M 900 /tmp/evaluation/202661-1168153156/VALCSP /tmp/evaluation/202661-1168153156/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: 2.01 1.99 1.85 5/75 13019
/proc/meminfo: memFree=1480472/2055920 swapFree=4187312/4192956
[pid=13018] ppid=13016 vsize=2788 CPUtime=0.1
/proc/13018/stat : 13018 (VALCSP) R 13016 13018 12597 0 -1 4194304 439 0 0 0 10 0 0 0 21 0 1 0 163715174 2854912 417 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 11527803 0 0 4096 0 0 0 0 17 1 0 0
/proc/13018/statm: 697 417 63 8 0 369 0

[startup+0.218575 s]
/proc/loadavg: 2.01 1.99 1.85 5/75 13019
/proc/meminfo: memFree=1480472/2055920 swapFree=4187312/4192956
[pid=13018] ppid=13016 vsize=3316 CPUtime=0.2
/proc/13018/stat : 13018 (VALCSP) R 13016 13018 12597 0 -1 4194304 570 0 0 0 20 0 0 0 22 0 1 0 163715174 3395584 548 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134524781 0 0 4096 0 0 0 0 17 1 0 0
/proc/13018/statm: 829 548 65 8 0 501 0
Current children cumulated CPU time (s) 0.2
Current children cumulated vsize (KiB) 3316

[startup+0.628612 s]
/proc/loadavg: 2.01 1.99 1.85 5/75 13019
/proc/meminfo: memFree=1480472/2055920 swapFree=4187312/4192956
[pid=13018] ppid=13016 vsize=3316 CPUtime=0.61
/proc/13018/stat : 13018 (VALCSP) R 13016 13018 12597 0 -1 4194304 570 0 0 0 61 0 0 0 25 0 1 0 163715174 3395584 548 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134524672 0 0 4096 0 0 0 0 17 1 0 0
/proc/13018/statm: 829 548 65 8 0 501 0
Current children cumulated CPU time (s) 0.61
Current children cumulated vsize (KiB) 3316

[startup+1.45269 s]
/proc/loadavg: 2.01 1.99 1.85 3/75 13019
/proc/meminfo: memFree=1478488/2055920 swapFree=4187312/4192956
[pid=13018] ppid=13016 vsize=3316 CPUtime=1.42
/proc/13018/stat : 13018 (VALCSP) R 13016 13018 12597 0 -1 4194304 570 0 0 0 142 0 0 0 25 0 1 0 163715174 3395584 548 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134524739 0 0 4096 0 0 0 0 17 1 0 0
/proc/13018/statm: 829 548 65 8 0 501 0
Current children cumulated CPU time (s) 1.42
Current children cumulated vsize (KiB) 3316

[startup+3.08884 s]
/proc/loadavg: 2.01 1.99 1.85 3/75 13019
/proc/meminfo: memFree=1478488/2055920 swapFree=4187312/4192956
[pid=13018] ppid=13016 vsize=3316 CPUtime=3.05
/proc/13018/stat : 13018 (VALCSP) R 13016 13018 12597 0 -1 4194304 570 0 0 0 305 0 0 0 25 0 1 0 163715174 3395584 548 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134524706 0 0 4096 0 0 0 0 17 1 0 0
/proc/13018/statm: 829 548 65 8 0 501 0
Current children cumulated CPU time (s) 3.05
Current children cumulated vsize (KiB) 3316

[startup+6.36914 s]
/proc/loadavg: 2.01 1.99 1.85 3/75 13019
/proc/meminfo: memFree=1478488/2055920 swapFree=4187312/4192956
[pid=13018] ppid=13016 vsize=3316 CPUtime=6.3
/proc/13018/stat : 13018 (VALCSP) R 13016 13018 12597 0 -1 4194304 570 0 0 0 630 0 0 0 25 0 1 0 163715174 3395584 548 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134524717 0 0 4096 0 0 0 0 17 1 0 0
/proc/13018/statm: 829 548 65 8 0 501 0
Current children cumulated CPU time (s) 6.3
Current children cumulated vsize (KiB) 3316

Child status: 0
Real time (s): 10.9701
CPU time (s): 10.8783
CPU user time (s): 10.8703
CPU system time (s): 0.007998
CPU usage (%): 99.1633
Max. virtual memory (cumulated for all children) (KiB): 3316

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 10.8703
system time used= 0.007998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 600
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= 8
involuntary context switches= 232

runsolver used 0.015997 s user time and 0.033994 s system time

The end

Launcher Data (download as text)

Begin job on node39 on Sun Jan  7 06:59:16 UTC 2007


IDJOB= 202661
IDBENCH= 3874
FILE ID= node39/202661-1168153156

PBS_JOBID= 3478469

Free space on /tmp= 66553 MiB

BENCH NAME= HOME/pub/bench/CPAI06/random/rand-2-40-19/rand-2-40-19-443-230-31_ext.xml
COMMAND LINE= /tmp/evaluation/202661-1168153156/VALCSP /tmp/evaluation/202661-1168153156/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node39/watcher-202661-1168153156 -o ROOT/results/node39/solver-202661-1168153156 -C 1800 -M 900  /tmp/evaluation/202661-1168153156/VALCSP /tmp/evaluation/202661-1168153156/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  4c2847ddad0559921e4234b810d1d3ea

RANDOM SEED= 492207265

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		: 3000.236
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		: 3000.236
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:       1480952 kB
Buffers:         35900 kB
Cached:         460584 kB
SwapCached:       1548 kB
Active:         165472 kB
Inactive:       350448 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1480952 kB
SwapTotal:     4192956 kB
SwapFree:      4187312 kB
Dirty:             264 kB
Writeback:           0 kB
Mapped:          28100 kB
Slab:            44496 kB
Committed_AS:  3342160 kB
PageTables:       1804 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= 66553 MiB



End job on node39 on Sun Jan  7 06:59:27 UTC 2007