Trace number 2073464

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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
pcs-restart 0.3.2SAT 0.943856 0.955628

DiagnosticValue
ASSIGNMENTS16

General information on the benchmark

Namecsp/bddSmall/
normalized-bdd-21-133-18-78-9_ext.xml
MD5SUM61b8f771f5cec183fecc7d8ac5c39df6
Bench CategoryN-ARY-EXT (n-ary constraints in extension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.943856
Satisfiable
(Un)Satisfiability was proved
Number of variables21
Number of constraints133
Maximum constraint arity18
Maximum domain size2
Number of constraints which are defined in extension133
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data 

0.00/0.05	c small-domain mode
0.00/0.06	c Seed is 918264235
0.00/0.06	c Constructing HOME/instance-2073464-1247711892.xml  with 133 constraints
0.77/0.80	c Solving 16 backtracks 1 restarts
0.87/0.95	s SATISFIABLE
0.87/0.95	c V0=1, V1=1, V2=1, V3=1, V4=1, V5=1, V6=1, V7=1, V8=1, V9=1, V10=1, V11=1, V12=1, V13=1, V14=1, V15=1, V16=1, V17=1, V18=1, V19=1, V20=1, 
0.87/0.95	v 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
0.87/0.95	d ASSIGNMENTS 16

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2073464-1247711892/watcher-2073464-1247711892 -o /tmp/evaluation-result-2073464-1247711892/solver-2073464-1247711892 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 918264235 HOME/instance-2073464-1247711892.xml 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2000 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


[startup+0 s]
/proc/loadavg: 2.02 2.05 2.07 4/82 7038
/proc/meminfo: memFree=1221824/2055920 swapFree=4192812/4192956
[pid=7038] ppid=7036 vsize=5356 CPUtime=0
/proc/7038/stat : 7038 (pcssolve) R 7036 7038 6894 0 -1 4194304 273 0 0 0 0 0 0 0 22 0 1 0 58255781 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 273952598687 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/7038/statm: 1339 241 200 169 0 50 0
[pid=7039] ppid=7038 vsize=5356 CPUtime=0
/proc/7039/stat : 7039 (pcssolve) R 7038 7038 6894 0 -1 4194368 0 0 0 0 0 0 0 0 22 0 1 0 58255782 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 273952598687 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/7039/statm: 1339 241 200 169 0 50 0

[startup+0.0133331 s]
/proc/loadavg: 2.02 2.05 2.07 4/82 7038
/proc/meminfo: memFree=1221824/2055920 swapFree=4192812/4192956
[pid=7038] ppid=7036 vsize=5356 CPUtime=0
/proc/7038/stat : 7038 (pcssolve) S 7036 7038 6894 0 -1 4194304 305 0 0 0 0 0 0 0 22 0 1 0 58255781 5484544 242 996147200 4194304 4889804 548682068800 18446744073709551615 273952596804 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/7038/statm: 1339 242 201 169 0 50 0
[pid=7039] ppid=7038 vsize=3940 CPUtime=0
/proc/7039/stat : 7039 (fgrep) R 7038 7038 6894 0 -1 4194304 264 0 0 0 0 0 0 0 24 0 1 0 58255782 4034560 198 996147200 4194304 4274172 548682068976 18446744073709551615 4208899 0 0 4096 0 0 0 0 17 1 0 0
/proc/7039/statm: 985 198 88 19 0 109 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 9296

[startup+0.101345 s]
/proc/loadavg: 2.02 2.05 2.07 4/82 7038
/proc/meminfo: memFree=1221824/2055920 swapFree=4192812/4192956
[pid=7038] ppid=7036 vsize=5848 CPUtime=0.07
/proc/7038/stat : 7038 (pcs.small) R 7036 7038 6894 0 -1 4194304 1040 3866 0 0 4 0 1 2 18 0 1 0 58255781 5988352 649 996147200 134512640 135095119 4294956304 18446744073709551615 134739554 0 0 4096 0 0 0 0 17 1 0 0
/proc/7038/statm: 1462 649 361 142 0 416 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 5848

[startup+0.301375 s]
/proc/loadavg: 2.02 2.05 2.07 4/82 7038
/proc/meminfo: memFree=1221824/2055920 swapFree=4192812/4192956
[pid=7038] ppid=7036 vsize=9544 CPUtime=0.27
/proc/7038/stat : 7038 (pcs.small) R 7036 7038 6894 0 -1 4194304 2100 3866 0 0 23 1 1 2 19 0 1 0 58255781 9773056 1709 996147200 134512640 135095119 4294956304 18446744073709551615 134681645 0 0 4096 0 0 0 0 17 1 0 0
/proc/7038/statm: 2386 1709 362 142 0 1340 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 9544

[startup+0.701418 s]
/proc/loadavg: 2.02 2.05 2.07 4/82 7038
/proc/meminfo: memFree=1221824/2055920 swapFree=4192812/4192956
[pid=7038] ppid=7036 vsize=14212 CPUtime=0.67
/proc/7038/stat : 7038 (pcs.small) R 7036 7038 6894 0 -1 4194304 3969 3866 0 0 63 1 1 2 23 0 1 0 58255781 14553088 2860 996147200 134512640 135095119 4294956304 18446744073709551615 134934329 0 0 4096 0 0 0 0 17 1 0 0
/proc/7038/statm: 3553 2860 374 142 0 2507 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 14212

Solver just ended. Dumping a history of the last processes samples

[startup+0.901441 s]
/proc/loadavg: 2.02 2.05 2.07 4/82 7038
/proc/meminfo: memFree=1221824/2055920 swapFree=4192812/4192956
[pid=7038] ppid=7036 vsize=13760 CPUtime=0.87
/proc/7038/stat : 7038 (pcs.small) R 7036 7038 6894 0 -1 4194304 4158 3866 0 0 83 1 1 2 25 0 1 0 58255781 14090240 2790 996147200 134512640 135095119 4294956304 18446744073709551615 134918249 0 0 4096 0 0 0 0 17 1 0 0
/proc/7038/statm: 3440 2790 389 142 0 2394 0
Current children cumulated CPU time (s) 0.87
Current children cumulated vsize (KiB) 13760

Child status: 0
Real time (s): 0.955628
CPU time (s): 0.943856
CPU user time (s): 0.900863
CPU system time (s): 0.042993
CPU usage (%): 98.7681
Max. virtual memory (cumulated for all children) (KiB): 15124

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.900863
system time used= 0.042993
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8027
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= 23
involuntary context switches= 51

runsolver used 0.002999 second user time and 0.010998 second system time

The end

Launcher Data 

Begin job on node20 at 2009-07-16 04:38:12
IDJOB=2073464
IDBENCH=55981
IDSOLVER=734
FILE ID=node20/2073464-1247711892
PBS_JOBID= 9521396
Free space on /tmp= 66292 MiB

SOLVER NAME= pcs-restart 0.2.restart
BENCH NAME= CPAI08/csp/bddSmall/normalized-bdd-21-133-18-78-9_ext.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2073464-1247711892/watcher-2073464-1247711892 -o /tmp/evaluation-result-2073464-1247711892/solver-2073464-1247711892 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 918264235 HOME/instance-2073464-1247711892.xml

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 61b8f771f5cec183fecc7d8ac5c39df6
RANDOM SEED=918264235

node20.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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:       1222304 kB
Buffers:         84048 kB
Cached:         550528 kB
SwapCached:          0 kB
Active:         258868 kB
Inactive:       485048 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1222304 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3764 kB
Writeback:           0 kB
Mapped:         129716 kB
Slab:            74800 kB
Committed_AS:   616688 kB
PageTables:       2036 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= 66292 MiB
End job on node20 at 2009-07-16 04:38:13