Trace number 201752

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
BPrologCSPSolver70a 2006-12-13SAT 0.528919 0.538352

General information on the benchmark

Namerlfap/rlfapScens/
scen2.xml
MD5SUM6fd929da3fdebf81252e0d9d01639132
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 benchmark0.480926
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables200
Number of constraints1235
Maximum constraint arity2
Maximum domain size44
Number of constraints which are defined in extension0
Number of constraints which are defined in intension1235
Global constraints used (with number of constraints)

Solver Data (download as text)

0.53	
0.53	Time: 439
0.53	
c 
c 
c 
c solution file
c 
c 

SAT
16 254 44 282 30 268 254 16 86 324 128 366 254 16 58 296 366 128 156 394 156 394 254 16 100 338 30 268 30 268 254 16 380 142 100 338 428 666 254 16 254 16 380 142 380 142 254 16 100 338 100 338 254 16 86 324 16 254 352 114 16 254 128 366 352 114 16 254 254 16 352 114 352 114 366 128 44 282 30 268 44 282 58 296 100 338 268 30 30 268 30 268 352 114 428 666 30 268 16 254 254 16 44 282 254 16 58 296 114 352 352 114 58 296 30 268 86 324 114 352 128 366 268 30 268 30 128 366 44 282 268 30 338 100 366 128 30 268 30 268 142 380 268 30 100 338 16 254 30 268 268 30 310 72 338 100 44 282 254 16 380 142 310 72 86 324 156 394 30 268 44 282 114 352 100 338 380 142 72 310 114 352 58 296 268 30 338 100 30 268 100 338 268 30 338 100 268 30 268 30 
c 
c 
c 
c conversion script
c 
c 

converting(/tmp/evaluation/201752-1168149614/unknown)

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/node48/watcher-201752-1168149614 -o ROOT/results/node48/solver-201752-1168149614 -C 1800 -M 900 /tmp/evaluation/201752-1168149614/Complete/Ordinary/solver /tmp/evaluation/201752-1168149614/unknown 1800 

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: 0.92 0.98 1.04 3/81 21411
/proc/meminfo: memFree=1226040/2055920 swapFree=4192812/4192956
[pid=21410] ppid=21408 vsize=18540 CPUtime=0
/proc/21410/stat : 21410 (runsolver) R 21408 21410 21237 0 -1 4194368 16 0 0 0 0 0 0 0 18 0 1 0 163360146 18984960 279 18446744073709551615 4194304 4267372 548682069056 18446744073709551615 255539604775 0 0 4096 24578 0 0 0 17 1 0 0
/proc/21410/statm: 4635 279 244 17 0 2626 0

[startup+0.102924 s]
/proc/loadavg: 0.92 0.98 1.04 3/81 21411
/proc/meminfo: memFree=1226040/2055920 swapFree=4192812/4192956
[pid=21410] ppid=21408 vsize=53820 CPUtime=0.08
/proc/21410/stat : 21410 (bprolog) R 21408 21410 21237 0 -1 4194304 1276 0 0 0 8 0 0 0 18 0 1 0 163360146 55111680 991 18446744073709551615 134512640 134884608 4294956576 18446744073709551615 134662613 0 0 4096 2 0 0 0 17 0 0 0
/proc/21410/statm: 13455 991 173 90 0 12993 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 53820

[startup+0.510958 s]
/proc/loadavg: 0.92 0.98 1.04 3/81 21411
/proc/meminfo: memFree=1226040/2055920 swapFree=4192812/4192956
[pid=21410] ppid=21408 vsize=87500 CPUtime=0.49
/proc/21410/stat : 21410 (bprolog) R 21408 21410 21237 0 -1 4194304 12210 0 0 0 43 6 0 0 22 0 2 0 163360146 89600000 6064 18446744073709551615 134512640 134884608 4294956576 18446744073709551615 134618352 0 0 4096 2 18446744073709551615 0 0 17 0 0 0
/proc/21410/statm: 21875 6064 177 90 0 21413 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 87500

Child status: 0
Real time (s): 0.538352
CPU time (s): 0.528919
CPU user time (s): 0.450931
CPU system time (s): 0.077988
CPU usage (%): 98.2478
Max. virtual memory (cumulated for all children) (KiB): 103128

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.450931
system time used= 0.077988
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 12502
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= 9
involuntary context switches= 17

runsolver used 0.003999 s user time and 0.004999 s system time

The end

Launcher Data (download as text)

Begin job on node48 on Sun Jan  7 06:00:14 UTC 2007


IDJOB= 201752
IDBENCH= 3782
FILE ID= node48/201752-1168149614

PBS_JOBID= 3478416

Free space on /tmp= 66560 MiB

BENCH NAME= HOME/pub/bench/CPAI06/rlfap/rlfapScens/scen2.xml
COMMAND LINE= /tmp/evaluation/201752-1168149614/Complete/Ordinary/solver /tmp/evaluation/201752-1168149614/unknown 1800
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node48/convwatcher-201752-1168149614 -o ROOT/results/node48/conversion-201752-1168149614 -C 600 -M 900 /tmp/evaluation/201752-1168149614/Complete/Ordinary/conversion /tmp/evaluation/201752-1168149614/unknown
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node48/watcher-201752-1168149614 -o ROOT/results/node48/solver-201752-1168149614 -C 1800 -M 900  /tmp/evaluation/201752-1168149614/Complete/Ordinary/solver /tmp/evaluation/201752-1168149614/unknown 1800

META MD5SUM SOLVER= b53ab06f245aa5e62684a7a0a4388ade
MD5SUM BENCH=  6fd929da3fdebf81252e0d9d01639132

RANDOM SEED= 876462330

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		: 3000.218
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		: 3000.218
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:       1226776 kB
Buffers:         52216 kB
Cached:         654372 kB
SwapCached:          0 kB
Active:         270988 kB
Inactive:       481512 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1226776 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            5124 kB
Writeback:           0 kB
Mapped:          64844 kB
Slab:            61780 kB
Committed_AS:  4149940 kB
PageTables:       1884 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= 66560 MiB



End job on node48 on Sun Jan  7 06:00:15 UTC 2007