Trace number 232058

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 11.7382 11.9473

DiagnosticValue
CHECKS350432000
NODES79886

General information on the benchmark

Namerandom/rand-2-25/
rand-25-25-300-147-51021_ext.xml
MD5SUMa6796d1a4a021a8d73019bb1709f2bc1
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 benchmark11.7382
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables25
Number of constraints300
Maximum constraint arity2
Maximum domain size25
Number of constraints which are defined in extension300
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

11.94	s SATISFIABLE
11.94	v 1 19 16 4 19 12 3 14 3 4 20 4 2 17 20 8 24 14 18 7 2 8 23 18 10 
11.94	d CHECKS 3.50432e+08
11.94	d NODES 79886
11.94

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/node25/watcher-232058-1168319670 -o ROOT/results/node25/solver-232058-1168319670 -C 1800 -M 900 /tmp/evaluation/232058-1168319670/VALCSP /tmp/evaluation/232058-1168319670/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: 1.23 1.05 1.02 5/83 2392
/proc/meminfo: memFree=423384/2055920 swapFree=4170860/4192956
[pid=2391] ppid=2388 vsize=18540 CPUtime=0
/proc/2391/stat : 2391 (runsolver) D 2388 2391 2277 0 -1 4194368 16 0 0 0 0 0 0 0 19 0 1 0 180359564 18984960 279 18446744073709551615 4194304 4267372 548682069088 18446744073709551615 215781797159 0 0 4096 24578 18446744071563608240 0 0 17 1 0 0
/proc/2391/statm: 4635 279 244 17 0 2626 0

[startup+0.105394 s]
/proc/loadavg: 1.23 1.05 1.02 5/83 2392
/proc/meminfo: memFree=423384/2055920 swapFree=4170860/4192956
[pid=2391] ppid=2388 vsize=1336 CPUtime=0
/proc/2391/stat : 2391 (VALCSP) D 2388 2391 2277 0 -1 4194304 80 0 6 0 0 0 0 0 18 0 1 0 180359564 1368064 64 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 4845198 0 0 4096 0 18446744071563479169 0 0 17 0 0 0
/proc/2391/statm: 334 64 51 8 0 6 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 1336

[startup+0.513464 s]
/proc/loadavg: 1.23 1.05 1.02 5/83 2392
/proc/meminfo: memFree=423384/2055920 swapFree=4170860/4192956
[pid=2391] ppid=2388 vsize=3844 CPUtime=0.4
/proc/2391/stat : 2391 (VALCSP) R 2388 2391 2277 0 -1 4194304 700 0 7 0 37 3 0 0 21 0 1 0 180359564 3936256 685 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134524676 0 0 4096 0 0 0 0 17 1 0 0
/proc/2391/statm: 961 685 65 8 0 633 0
Current children cumulated CPU time (s) 0.4
Current children cumulated vsize (KiB) 3844

[startup+1.3346 s]
/proc/loadavg: 1.23 1.05 1.02 4/97 2406
/proc/meminfo: memFree=384040/2055920 swapFree=4170860/4192956
[pid=2391] ppid=2388 vsize=3844 CPUtime=1.21
/proc/2391/stat : 2391 (VALCSP) R 2388 2391 2277 0 -1 4194304 700 0 7 0 118 3 0 0 25 0 1 0 180359564 3936256 685 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134524739 0 0 4096 0 0 0 0 17 1 0 0
/proc/2391/statm: 961 685 65 8 0 633 0
Current children cumulated CPU time (s) 1.21
Current children cumulated vsize (KiB) 3844

[startup+2.97288 s]
/proc/loadavg: 1.23 1.05 1.02 4/97 2406
/proc/meminfo: memFree=342376/2055920 swapFree=4170860/4192956
[pid=2391] ppid=2388 vsize=3844 CPUtime=2.84
/proc/2391/stat : 2391 (VALCSP) R 2388 2391 2277 0 -1 4194304 700 0 7 0 281 3 0 0 25 0 1 0 180359564 3936256 685 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134524683 0 0 4096 0 0 0 0 17 1 0 0
/proc/2391/statm: 961 685 65 8 0 633 0
Current children cumulated CPU time (s) 2.84
Current children cumulated vsize (KiB) 3844

[startup+6.25444 s]
/proc/loadavg: 1.29 1.06 1.02 3/98 2407
/proc/meminfo: memFree=333736/2055920 swapFree=4170860/4192956
[pid=2391] ppid=2388 vsize=3844 CPUtime=6.09
/proc/2391/stat : 2391 (VALCSP) R 2388 2391 2277 0 -1 4194304 700 0 7 0 606 3 0 0 25 0 1 0 180359564 3936256 685 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134524699 0 0 4096 0 0 0 0 17 1 0 0
/proc/2391/statm: 961 685 65 8 0 633 0
Current children cumulated CPU time (s) 6.09
Current children cumulated vsize (KiB) 3844

Child status: 0
Real time (s): 11.9473
CPU time (s): 11.7382
CPU user time (s): 11.7072
CPU system time (s): 0.030995
CPU usage (%): 98.2501
Max. virtual memory (cumulated for all children) (KiB): 3844

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 11.7072
system time used= 0.030995
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 730
page faults= 7
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 28
involuntary context switches= 593

runsolver used 0.009998 s user time and 0.044993 s system time

The end

Launcher Data (download as text)

Begin job on node25 on Tue Jan  9 05:14:31 UTC 2007


IDJOB= 232058
IDBENCH= 6498
FILE ID= node25/232058-1168319670

PBS_JOBID= 3502781

Free space on /tmp= 66562 MiB

BENCH NAME= HOME/pub/bench/CPAI06/random/rand-2-25/rand-25-25-300-147-51021_ext.xml
COMMAND LINE= /tmp/evaluation/232058-1168319670/VALCSP /tmp/evaluation/232058-1168319670/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node25/watcher-232058-1168319670 -o ROOT/results/node25/solver-232058-1168319670 -C 1800 -M 900  /tmp/evaluation/232058-1168319670/VALCSP /tmp/evaluation/232058-1168319670/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  a6796d1a4a021a8d73019bb1709f2bc1

RANDOM SEED= 588213393

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		: 3000.279
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		: 3000.279
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:        425600 kB
Buffers:         12672 kB
Cached:        1535124 kB
SwapCached:       2332 kB
Active:         829408 kB
Inactive:       747188 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        425600 kB
SwapTotal:     4192956 kB
SwapFree:      4170860 kB
Dirty:            3204 kB
Writeback:           0 kB
Mapped:          37940 kB
Slab:            38732 kB
Committed_AS:  3780760 kB
PageTables:       2232 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= 66562 MiB



End job on node25 on Tue Jan  9 05:14:44 UTC 2007