Trace number 2073298

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 0.3.2SAT 0.91186 0.924413

DiagnosticValue
ASSIGNMENTS16

General information on the benchmark

Namecsp/bddSmall/
normalized-bdd-21-133-18-78-7_ext.xml
MD5SUMeba2fe074420dddfb095f3c4667a29a8
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 benchmark0.887864
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
0.00/0.05	c Seed is 41084028
0.00/0.05	c Constructing HOME/instance-2073298-1247711683.xml  with 133 constraints
0.77/0.80	c Solving 16 backtracks 1 restarts
0.87/0.92	s SATISFIABLE
0.87/0.92	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, 
0.87/0.92	v 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
0.87/0.92	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-2073298-1247711683/watcher-2073298-1247711683 -o /tmp/evaluation-result-2073298-1247711683/solver-2073298-1247711683 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 41084028 HOME/instance-2073298-1247711683.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: 2.05 2.06 2.08 4/82 16466
/proc/meminfo: memFree=1287568/2055920 swapFree=4192812/4192956
[pid=16466] ppid=16464 vsize=5356 CPUtime=0
/proc/16466/stat : 16466 (pcssolve) R 16464 16466 16245 0 -1 4194304 290 0 0 0 0 0 0 0 21 0 1 0 58232521 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 213116316319 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/16466/statm: 1339 241 200 169 0 50 0
[pid=16467] ppid=16466 vsize=5356 CPUtime=0
/proc/16467/stat : 16467 (pcssolve) R 16466 16466 16245 0 -1 4194368 22 0 0 0 0 0 0 0 22 0 1 0 58232521 5484544 243 996147200 4194304 4889804 548682068800 18446744073709551615 213116316967 0 0 4096 0 0 0 0 17 1 0 0
/proc/16467/statm: 1339 243 202 169 0 50 0
[pid=16468] ppid=16466 vsize=5356 CPUtime=0
/proc/16468/stat : 16468 (pcssolve) R 16466 16466 16245 0 -1 4194368 0 0 0 0 0 0 0 0 21 0 1 0 58232521 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 213116316319 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/16468/statm: 1339 241 200 169 0 50 0

[startup+0.094241 s]
/proc/loadavg: 2.05 2.06 2.08 4/82 16466
/proc/meminfo: memFree=1287568/2055920 swapFree=4192812/4192956
[pid=16466] ppid=16464 vsize=5716 CPUtime=0.07
/proc/16466/stat : 16466 (pcs.small) R 16464 16466 16245 0 -1 4194304 1007 3866 0 0 4 0 1 2 18 0 1 0 58232521 5853184 616 996147200 134512640 135095119 4294956304 18446744073709551615 134739568 0 0 4096 0 0 0 0 17 1 0 0
/proc/16466/statm: 1429 616 361 142 0 383 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 5716

[startup+0.102239 s]
/proc/loadavg: 2.05 2.06 2.08 4/82 16466
/proc/meminfo: memFree=1287568/2055920 swapFree=4192812/4192956
[pid=16466] ppid=16464 vsize=5848 CPUtime=0.07
/proc/16466/stat : 16466 (pcs.small) R 16464 16466 16245 0 -1 4194304 1047 3866 0 0 4 0 1 2 18 0 1 0 58232521 5988352 656 996147200 134512640 135095119 4294956304 18446744073709551615 134739386 0 0 4096 0 0 0 0 17 1 0 0
/proc/16466/statm: 1462 656 361 142 0 416 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 5848

[startup+0.302283 s]
/proc/loadavg: 2.05 2.06 2.08 4/82 16466
/proc/meminfo: memFree=1287568/2055920 swapFree=4192812/4192956
[pid=16466] ppid=16464 vsize=9544 CPUtime=0.27
/proc/16466/stat : 16466 (pcs.small) R 16464 16466 16245 0 -1 4194304 2088 3866 0 0 23 1 1 2 19 0 1 0 58232521 9773056 1697 996147200 134512640 135095119 4294956304 18446744073709551615 4159783331 0 0 4096 0 0 0 0 17 1 0 0
/proc/16466/statm: 2386 1697 361 142 0 1340 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 9544

[startup+0.70136 s]
/proc/loadavg: 2.05 2.06 2.08 4/82 16466
/proc/meminfo: memFree=1287568/2055920 swapFree=4192812/4192956
[pid=16466] ppid=16464 vsize=14212 CPUtime=0.67
/proc/16466/stat : 16466 (pcs.small) R 16464 16466 16245 0 -1 4194304 3970 3866 0 0 62 2 1 2 23 0 1 0 58232521 14553088 2861 996147200 134512640 135095119 4294956304 18446744073709551615 134945084 0 0 4096 0 0 0 0 17 1 0 0
/proc/16466/statm: 3553 2861 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+0.901399 s]
/proc/loadavg: 2.05 2.06 2.08 4/82 16466
/proc/meminfo: memFree=1287568/2055920 swapFree=4192812/4192956
[pid=16466] ppid=16464 vsize=13760 CPUtime=0.87
/proc/16466/stat : 16466 (pcs.small) R 16464 16466 16245 0 -1 4194304 4159 3866 0 0 82 2 1 2 25 0 1 0 58232521 14090240 2791 996147200 134512640 135095119 4294956304 18446744073709551615 134918249 0 0 4096 0 0 0 0 17 1 0 0
/proc/16466/statm: 3440 2791 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): 0.924413
CPU time (s): 0.91186
CPU user time (s): 0.858869
CPU system time (s): 0.052991
CPU usage (%): 98.6421
Max. virtual memory (cumulated for all children) (KiB): 15124

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.858869
system time used= 0.052991
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8028
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= 22
involuntary context switches= 50

runsolver used 0.007998 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node37 at 2009-07-16 04:34:43
IDJOB=2073298
IDBENCH=55966
IDSOLVER=733
FILE ID=node37/2073298-1247711683
PBS_JOBID= 9521386
Free space on /tmp= 66396 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/bddSmall/normalized-bdd-21-133-18-78-7_ext.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2073298-1247711683/watcher-2073298-1247711683 -o /tmp/evaluation-result-2073298-1247711683/solver-2073298-1247711683 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 41084028 HOME/instance-2073298-1247711683.xml

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

MD5SUM BENCH= eba2fe074420dddfb095f3c4667a29a8
RANDOM SEED=41084028

node37.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		: 3000.260
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		: 3000.260
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:       1288048 kB
Buffers:         82880 kB
Cached:         413724 kB
SwapCached:          0 kB
Active:         358216 kB
Inactive:       321588 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1288048 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3796 kB
Writeback:           0 kB
Mapped:         203544 kB
Slab:            72928 kB
Committed_AS:   743552 kB
PageTables:       2144 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= 66392 MiB
End job on node37 at 2009-07-16 04:34:44