Trace number 2091856

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 4.16537 4.20227

DiagnosticValue
ASSIGNMENTS15610

General information on the benchmark

Namecsp/tightness0.1/
normalized-rand-2-40-8-753-100-32_ext.xml
MD5SUMe5d0981df2edfda0c1fcfa705e7f7e16
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 benchmark0.729888
Satisfiable
(Un)Satisfiability was proved
Number of variables40
Number of constraints751
Maximum constraint arity2
Maximum domain size8
Number of constraints which are defined in extension751
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data 

0.00/0.01	c small-domain mode
0.18/0.21	c Seed is 901157755
0.18/0.21	c Constructing HOME/instance-2091856-1247733528.xml  with 3028 constraints
0.18/0.21	c Solving 15610 backtracks 15 restarts
4.14/4.20	s SATISFIABLE
4.14/4.20	c V0=3, V1=1, V2=2, V3=5, V4=3, V5=7, V6=7, V7=5, V8=5, V9=2, V10=4, V11=1, V12=4, V13=7, V14=1, V15=1, V16=0, V17=3, V18=2, V19=0, V20=7, V21=3, V22=6, V23=2, V24=2, V25=7, V26=0, V27=0, V28=2, V29=6, V30=4, V31=0, V32=6, V33=6, V34=1, V35=4, V36=0, V37=4, V38=1, V39=3, 
4.14/4.20	v 3 1 2 5 3 7 7 5 5 2 4 1 4 7 1 1 0 3 2 0 7 3 6 2 2 7 0 0 2 6 4 0 6 6 1 4 0 4 1 3 
4.14/4.20	d ASSIGNMENTS 15610

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-2091856-1247733528/watcher-2091856-1247733528 -o /tmp/evaluation-result-2091856-1247733528/solver-2091856-1247733528 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 901157755 HOME/instance-2091856-1247733528.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: 2.08 2.08 2.01 4/72 15485
/proc/meminfo: memFree=1203440/2055924 swapFree=4192812/4192956
[pid=15485] ppid=15483 vsize=5356 CPUtime=0
/proc/15485/stat : 15485 (pcssolve) R 15483 15485 14846 0 -1 4194304 290 0 0 0 0 0 0 0 21 0 1 0 60420261 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 268582840991 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/15485/statm: 1339 241 200 169 0 50 0
[pid=15486] ppid=15485 vsize=0 CPUtime=0
/proc/15486/stat : 15486 (fgrep) Z 15485 15485 14846 0 -1 4194316 155 0 0 0 0 0 0 0 22 0 1 0 60420262 0 0 996147200 0 0 0 0 0 0 0 4096 0 18446744071563351923 0 0 17 1 0 0
/proc/15486/statm: 0 0 0 0 0 0 0

[startup+0.012681 s]
/proc/loadavg: 2.08 2.08 2.01 4/72 15485
/proc/meminfo: memFree=1203440/2055924 swapFree=4192812/4192956
[pid=15485] ppid=15483 vsize=5356 CPUtime=0
/proc/15485/stat : 15485 (pcssolve) R 15483 15485 14846 0 -1 4194304 326 317 0 0 0 0 0 0 21 0 1 0 60420261 5484544 242 996147200 4194304 4889804 548682068800 18446744073709551615 268582840991 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/15485/statm: 1339 242 201 169 0 50 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 5356

[startup+0.102692 s]
/proc/loadavg: 2.08 2.08 2.01 4/72 15485
/proc/meminfo: memFree=1203440/2055924 swapFree=4192812/4192956
[pid=15485] ppid=15483 vsize=5076 CPUtime=0.08
/proc/15485/stat : 15485 (pcs.small) R 15483 15485 14846 0 -1 4194304 999 822 0 0 8 0 0 0 18 0 1 0 60420261 5197824 608 996147200 134512640 135095119 4294956304 18446744073709551615 134642982 0 0 4096 0 0 0 0 17 1 0 0
/proc/15485/statm: 1269 608 378 142 0 223 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 5076

[startup+0.30173 s]
/proc/loadavg: 2.08 2.08 2.01 4/72 15485
/proc/meminfo: memFree=1203440/2055924 swapFree=4192812/4192956
[pid=15485] ppid=15483 vsize=5476 CPUtime=0.28
/proc/15485/stat : 15485 (pcs.small) R 15483 15485 14846 0 -1 4194304 1064 822 0 0 28 0 0 0 19 0 1 0 60420261 5607424 640 996147200 134512640 135095119 4294956304 18446744073709551615 134581556 0 0 4096 0 0 0 0 17 1 0 0
/proc/15485/statm: 1369 640 378 142 0 323 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 5476

[startup+0.701807 s]
/proc/loadavg: 2.08 2.08 2.01 4/72 15485
/proc/meminfo: memFree=1203440/2055924 swapFree=4192812/4192956
[pid=15485] ppid=15483 vsize=5736 CPUtime=0.68
/proc/15485/stat : 15485 (pcs.small) R 15483 15485 14846 0 -1 4194304 1191 822 0 0 68 0 0 0 23 0 1 0 60420261 5873664 734 996147200 134512640 135095119 4294956304 18446744073709551615 134585021 0 0 4096 0 0 0 0 17 1 0 0
/proc/15485/statm: 1434 734 378 142 0 388 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 5736

[startup+1.50197 s]
/proc/loadavg: 2.08 2.08 2.01 3/73 15491
/proc/meminfo: memFree=1201576/2055924 swapFree=4192812/4192956
[pid=15485] ppid=15483 vsize=6908 CPUtime=1.47
/proc/15485/stat : 15485 (pcs.small) R 15483 15485 14846 0 -1 4194304 1574 822 0 0 147 0 0 0 25 0 1 0 60420261 7073792 987 996147200 134512640 135095119 4294956304 18446744073709551615 134617043 0 0 4096 0 0 0 0 17 1 0 0
/proc/15485/statm: 1727 987 378 142 0 681 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 6908

[startup+3.10128 s]
/proc/loadavg: 2.07 2.08 2.01 3/73 15491
/proc/meminfo: memFree=1200360/2055924 swapFree=4192812/4192956
[pid=15485] ppid=15483 vsize=8196 CPUtime=3.05
/proc/15485/stat : 15485 (pcs.small) R 15483 15485 14846 0 -1 4194304 2053 822 0 0 305 0 0 0 25 0 1 0 60420261 8392704 1337 996147200 134512640 135095119 4294956304 18446744073709551615 134589562 0 0 4096 0 0 0 0 17 1 0 0
/proc/15485/statm: 2049 1337 378 142 0 1003 0
Current children cumulated CPU time (s) 3.05
Current children cumulated vsize (KiB) 8196

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

[startup+3.90144 s]
/proc/loadavg: 2.07 2.08 2.01 3/73 15491
/proc/meminfo: memFree=1199208/2055924 swapFree=4192812/4192956
[pid=15485] ppid=15483 vsize=10652 CPUtime=3.84
/proc/15485/stat : 15485 (pcs.small) R 15483 15485 14846 0 -1 4194304 2743 822 0 0 384 0 0 0 25 0 1 0 60420261 10907648 1641 996147200 134512640 135095119 4294956304 18446744073709551615 134617057 0 0 4096 0 0 0 0 17 1 0 0
/proc/15485/statm: 2663 1641 378 142 0 1617 0
Current children cumulated CPU time (s) 3.84
Current children cumulated vsize (KiB) 10652

[startup+4.10148 s]
/proc/loadavg: 2.07 2.08 2.01 3/73 15491
/proc/meminfo: memFree=1199208/2055924 swapFree=4192812/4192956
[pid=15485] ppid=15483 vsize=10652 CPUtime=4.04
/proc/15485/stat : 15485 (pcs.small) R 15483 15485 14846 0 -1 4194304 2759 822 0 0 404 0 0 0 25 0 1 0 60420261 10907648 1657 996147200 134512640 135095119 4294956304 18446744073709551615 134636931 0 0 4096 0 0 0 0 17 1 0 0
/proc/15485/statm: 2663 1657 378 142 0 1617 0
Current children cumulated CPU time (s) 4.04
Current children cumulated vsize (KiB) 10652

[startup+4.20151 s]
/proc/loadavg: 2.07 2.08 2.01 3/73 15491
/proc/meminfo: memFree=1199208/2055924 swapFree=4192812/4192956
[pid=15485] ppid=15483 vsize=4496 CPUtime=4.14
/proc/15485/stat : 15485 (pcs.small) R 15483 15485 14846 0 -1 4194304 2767 822 0 0 414 0 0 0 25 0 1 0 60420261 4603904 476 996147200 134512640 135095119 4294956304 18446744073709551615 2151573 0 0 4096 0 0 0 0 17 1 0 0
/proc/15485/statm: 1124 476 379 142 0 78 0
Current children cumulated CPU time (s) 4.14
Current children cumulated vsize (KiB) 4496

Child status: 0
Real time (s): 4.20227
CPU time (s): 4.16537
CPU user time (s): 4.15237
CPU system time (s): 0.012998
CPU usage (%): 99.1218
Max. virtual memory (cumulated for all children) (KiB): 10652

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.15237
system time used= 0.012998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3591
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= 21
involuntary context switches= 102

runsolver used 0.008998 second user time and 0.020996 second system time

The end

Launcher Data 

Begin job on node6 at 2009-07-16 10:38:48
IDJOB=2091856
IDBENCH=60154
IDSOLVER=734
FILE ID=node6/2091856-1247733528
PBS_JOBID= 9521543
Free space on /tmp= 66316 MiB

SOLVER NAME= pcs-restart 0.2.restart
BENCH NAME= CPAI08/csp/tightness0.1/normalized-rand-2-40-8-753-100-32_ext.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2091856-1247733528/watcher-2091856-1247733528 -o /tmp/evaluation-result-2091856-1247733528/solver-2091856-1247733528 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 901157755 HOME/instance-2091856-1247733528.xml

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

MD5SUM BENCH= e5d0981df2edfda0c1fcfa705e7f7e16
RANDOM SEED=901157755

node6.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		: 3000.263
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		: 3000.263
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:      2055924 kB
MemFree:       1203984 kB
Buffers:        111464 kB
Cached:         565136 kB
SwapCached:          0 kB
Active:         326548 kB
Inactive:       428984 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055924 kB
LowFree:       1203984 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1900 kB
Writeback:           0 kB
Mapped:          90296 kB
Slab:            81728 kB
Committed_AS:   561572 kB
PageTables:       2000 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= 66312 MiB
End job on node6 at 2009-07-16 10:38:53