Trace number 2073431

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 0.865868 0.868489

DiagnosticValue
ASSIGNMENTS16

General information on the benchmark

Namecsp/bddSmall/
normalized-bdd-21-133-18-78-4_ext.xml
MD5SUMce82f875e4c4328b8a45831a23f5419c
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 benchmark0.865868
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 

0.00/0.04	c small-domain mode
0.00/0.04	c Seed is 261214269
0.00/0.04	c Constructing HOME/instance-2073431-1247711844.xml  with 133 constraints
0.68/0.73	c Solving 16 backtracks 1 restarts
0.78/0.86	s SATISFIABLE
0.78/0.86	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, 
0.78/0.86	v 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
0.78/0.86	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-2073431-1247711844/watcher-2073431-1247711844 -o /tmp/evaluation-result-2073431-1247711844/solver-2073431-1247711844 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 261214269 HOME/instance-2073431-1247711844.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: 2.16 2.08 2.03 4/83 14647
/proc/meminfo: memFree=857776/2055920 swapFree=4192948/4192956
[pid=14647] ppid=14645 vsize=5356 CPUtime=0
/proc/14647/stat : 14647 (pcssolve) S 14645 14647 13004 0 -1 4194304 305 0 0 0 0 0 0 0 18 0 1 0 58249206 5484544 242 996147200 4194304 4889804 548682068800 18446744073709551615 254613709636 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/14647/statm: 1339 242 201 169 0 50 0
[pid=14648] ppid=14647 vsize=5356 CPUtime=0
/proc/14648/stat : 14648 (pcssolve) R 14647 14647 13004 0 -1 4194368 22 0 0 0 0 0 0 0 19 0 1 0 58249206 5484544 243 996147200 4194304 4889804 548682068800 18446744073709551615 254613712167 0 0 4096 0 0 0 0 17 1 0 0
/proc/14648/statm: 1339 243 202 169 0 50 0
[pid=14649] ppid=14647 vsize=5356 CPUtime=0
/proc/14649/stat : 14649 (pcssolve) R 14647 14647 13004 0 -1 4194368 22 0 0 0 0 0 0 0 20 0 1 0 58249206 5484544 244 996147200 4194304 4889804 548682068800 18446744073709551615 254613712167 0 0 4096 0 0 0 0 17 1 0 0
/proc/14649/statm: 1339 244 203 169 0 50 0

[startup+0.116853 s]
/proc/loadavg: 2.16 2.08 2.03 4/83 14647
/proc/meminfo: memFree=857776/2055920 swapFree=4192948/4192956
[pid=14647] ppid=14645 vsize=6376 CPUtime=0.1
/proc/14647/stat : 14647 (pcs.small) R 14645 14647 13004 0 -1 4194304 1182 3863 0 0 7 0 1 2 20 0 1 0 58249206 6529024 791 996147200 134512640 135095119 4294956304 18446744073709551615 2072191 0 0 4096 0 0 0 0 17 1 0 0
/proc/14647/statm: 1594 791 361 142 0 548 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 6376

[startup+0.202869 s]
/proc/loadavg: 2.16 2.08 2.03 4/83 14647
/proc/meminfo: memFree=857776/2055920 swapFree=4192948/4192956
[pid=14647] ppid=14645 vsize=8092 CPUtime=0.18
/proc/14647/stat : 14647 (pcs.small) R 14645 14647 13004 0 -1 4194304 1677 3863 0 0 15 0 1 2 20 0 1 0 58249206 8286208 1286 996147200 134512640 135095119 4294956304 18446744073709551615 134739562 0 0 4096 0 0 0 0 17 1 0 0
/proc/14647/statm: 2023 1286 361 142 0 977 0
Current children cumulated CPU time (s) 0.18
Current children cumulated vsize (KiB) 8092

[startup+0.302882 s]
/proc/loadavg: 2.16 2.08 2.03 4/83 14647
/proc/meminfo: memFree=857776/2055920 swapFree=4192948/4192956
[pid=14647] ppid=14645 vsize=9544 CPUtime=0.29
/proc/14647/stat : 14647 (pcs.small) R 14645 14647 13004 0 -1 4194304 2096 3863 0 0 25 1 1 2 21 0 1 0 58249206 9773056 1705 996147200 134512640 135095119 4294956304 18446744073709551615 134681643 0 0 4096 0 0 0 0 17 1 0 0
/proc/14647/statm: 2386 1705 362 142 0 1340 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 9544

[startup+0.701926 s]
/proc/loadavg: 2.16 2.08 2.03 4/83 14647
/proc/meminfo: memFree=857776/2055920 swapFree=4192948/4192956
[pid=14647] ppid=14645 vsize=14436 CPUtime=0.68
/proc/14647/stat : 14647 (pcs.small) R 14645 14647 13004 0 -1 4194304 4135 3863 0 0 64 1 1 2 24 0 1 0 58249206 14782464 2940 996147200 134512640 135095119 4294956304 18446744073709551615 134914378 0 0 4096 0 0 0 0 17 1 0 0
/proc/14647/statm: 3609 2940 374 142 0 2563 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 14436

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

[startup+0.801936 s]
/proc/loadavg: 2.16 2.08 2.03 4/83 14647
/proc/meminfo: memFree=857776/2055920 swapFree=4192948/4192956
[pid=14647] ppid=14645 vsize=13756 CPUtime=0.78
/proc/14647/stat : 14647 (pcs.small) R 14645 14647 13004 0 -1 4194304 4152 3863 0 0 74 1 1 2 25 0 1 0 58249206 14086144 2785 996147200 134512640 135095119 4294956304 18446744073709551615 134918185 0 0 4096 0 0 0 0 17 1 0 0
/proc/14647/statm: 3439 2785 389 142 0 2393 0
Current children cumulated CPU time (s) 0.78
Current children cumulated vsize (KiB) 13756

Child status: 0
Real time (s): 0.868489
CPU time (s): 0.865868
CPU user time (s): 0.821875
CPU system time (s): 0.043993
CPU usage (%): 99.6982
Max. virtual memory (cumulated for all children) (KiB): 14436

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.821875
system time used= 0.043993
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8018
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= 32

runsolver used 0.004999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node87 at 2009-07-16 04:37:24
IDJOB=2073431
IDBENCH=55978
IDSOLVER=734
FILE ID=node87/2073431-1247711844
PBS_JOBID= 9521330
Free space on /tmp= 66160 MiB

SOLVER NAME= pcs-restart 0.2.restart
BENCH NAME= CPAI08/csp/bddSmall/normalized-bdd-21-133-18-78-4_ext.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2073431-1247711844/watcher-2073431-1247711844 -o /tmp/evaluation-result-2073431-1247711844/solver-2073431-1247711844 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 261214269 HOME/instance-2073431-1247711844.xml

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

MD5SUM BENCH= ce82f875e4c4328b8a45831a23f5419c
RANDOM SEED=261214269

node87.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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:        858256 kB
Buffers:        121708 kB
Cached:         861292 kB
SwapCached:          8 kB
Active:         185964 kB
Inactive:       907060 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        858256 kB
SwapTotal:     4192956 kB
SwapFree:      4192948 kB
Dirty:            4136 kB
Writeback:           0 kB
Mapped:         130220 kB
Slab:            89588 kB
Committed_AS:   732264 kB
PageTables:       2132 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= 66160 MiB
End job on node87 at 2009-07-16 04:37:25