Trace number 2065808

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 5.2562 5.3138

DiagnosticValue
ASSIGNMENTS16908

General information on the benchmark

Namecsp/ramsey3/
normalized-ramsey-13-3.xml
MD5SUM8ae345bab31379895c363f2bae4c048e
Bench CategoryN-ARY-INT (n-ary constraints in intension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.018996
Satisfiable
(Un)Satisfiability was proved
Number of variables78
Number of constraints286
Maximum constraint arity3
Maximum domain size3
Number of constraints which are defined in extension0
Number of constraints which are defined in intension286
Global constraints used (with number of constraints)

Solver Data 

0.00/0.02	c small-domain mode
0.00/0.02	c Seed is 572416537
0.00/0.02	c Constructing HOME/instance-2065808-1247703948.xml  with 2860 constraints
0.01/0.04	c Solving 16908 backtracks 15 restarts
5.23/5.31	s SATISFIABLE
5.23/5.31	c V0=2, V1=2, V2=1, V3=2, V4=1, V5=0, V6=2, V7=1, V8=0, V9=1, V10=0, V11=0, V12=1, V13=0, V14=0, V15=1, V16=2, V17=1, V18=2, V19=0, V20=2, V21=1, V22=1, V23=0, V24=1, V25=2, V26=2, V27=0, V28=1, V29=1, V30=0, V31=2, V32=0, V33=2, V34=0, V35=0, V36=1, V37=2, V38=1, V39=2, V40=1, V41=2, V42=2, V43=0, V44=0, V45=0, V46=2, V47=1, V48=1, V49=0, V50=1, V51=2, V52=0, V53=1, V54=2, V55=0, V56=0, V57=1, V58=1, V59=2, V60=0, V61=1, V62=2, V63=2, V64=0, V65=1, V66=0, V67=2, V68=0, V69=0, V70=2, V71=1, V72=2, V73=2, V74=1, V75=0, V76=1, V77=2, 
5.23/5.31	v 2 2 1 2 1 0 2 1 0 1 0 0 1 0 0 1 2 1 2 0 2 1 1 0 1 2 2 0 1 1 0 2 0 2 0 0 1 2 1 2 1 2 2 0 0 0 2 1 1 0 1 2 0 1 2 0 0 1 1 2 0 1 2 2 0 1 0 2 0 0 2 1 2 2 1 0 1 2 
5.23/5.31	d ASSIGNMENTS 16908

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-2065808-1247703948/watcher-2065808-1247703948 -o /tmp/evaluation-result-2065808-1247703948/solver-2065808-1247703948 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 572416537 HOME/instance-2065808-1247703948.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: 2.84 2.55 2.16 4/82 12140
/proc/meminfo: memFree=1313552/2055920 swapFree=4192812/4192956
[pid=12140] ppid=12138 vsize=18576 CPUtime=0
/proc/12140/stat : 12140 (runsolver) R 12138 12140 11281 0 -1 4194368 15 0 0 0 0 0 0 0 18 0 1 0 57462231 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 244671114535 0 0 4096 24578 0 0 0 17 1 0 0
/proc/12140/statm: 4644 284 249 26 0 2626 0

[startup+0.0446901 s]
/proc/loadavg: 2.84 2.55 2.16 4/82 12140
/proc/meminfo: memFree=1313552/2055920 swapFree=4192812/4192956
[pid=12140] ppid=12138 vsize=4932 CPUtime=0.01
/proc/12140/stat : 12140 (pcs.small) R 12138 12140 11281 0 -1 4194304 925 822 0 0 1 0 0 0 22 0 1 0 57462231 5050368 534 996147200 134512640 135095119 4294956304 18446744073709551615 134659007 0 0 4096 0 0 0 0 17 0 0 0
/proc/12140/statm: 1233 534 374 142 0 187 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 4932

[startup+0.101694 s]
/proc/loadavg: 2.84 2.55 2.16 4/82 12140
/proc/meminfo: memFree=1313552/2055920 swapFree=4192812/4192956
[pid=12140] ppid=12138 vsize=5076 CPUtime=0.07
/proc/12140/stat : 12140 (pcs.small) R 12138 12140 11281 0 -1 4194304 998 822 0 0 7 0 0 0 22 0 1 0 57462231 5197824 607 996147200 134512640 135095119 4294956304 18446744073709551615 134882992 0 0 4096 0 0 0 0 17 0 0 0
/proc/12140/statm: 1269 607 387 142 0 223 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 5076

[startup+0.301714 s]
/proc/loadavg: 2.84 2.55 2.16 4/82 12140
/proc/meminfo: memFree=1313552/2055920 swapFree=4192812/4192956
[pid=12140] ppid=12138 vsize=5196 CPUtime=0.27
/proc/12140/stat : 12140 (pcs.small) R 12138 12140 11281 0 -1 4194304 1010 822 0 0 27 0 0 0 24 0 1 0 57462231 5320704 619 996147200 134512640 135095119 4294956304 18446744073709551615 134882988 0 0 4096 0 0 0 0 17 0 0 0
/proc/12140/statm: 1299 619 387 142 0 253 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 5196

[startup+0.701757 s]
/proc/loadavg: 2.84 2.55 2.16 4/82 12140
/proc/meminfo: memFree=1313552/2055920 swapFree=4192812/4192956
[pid=12140] ppid=12138 vsize=5456 CPUtime=0.67
/proc/12140/stat : 12140 (pcs.small) R 12138 12140 11281 0 -1 4194304 1097 822 0 0 67 0 0 0 25 0 1 0 57462231 5586944 673 996147200 134512640 135095119 4294956304 18446744073709551615 134555234 0 0 4096 0 0 0 0 17 0 0 0
/proc/12140/statm: 1364 673 387 142 0 318 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 5456

[startup+1.50184 s]
/proc/loadavg: 2.78 2.54 2.16 3/83 12146
/proc/meminfo: memFree=1313544/2055920 swapFree=4192812/4192956
[pid=12140] ppid=12138 vsize=5696 CPUtime=1.46
/proc/12140/stat : 12140 (pcs.small) R 12138 12140 11281 0 -1 4194304 1182 822 0 0 146 0 0 0 25 0 1 0 57462231 5832704 758 996147200 134512640 135095119 4294956304 18446744073709551615 134615417 0 0 4096 0 0 0 0 17 0 0 0
/proc/12140/statm: 1424 758 387 142 0 378 0
Current children cumulated CPU time (s) 1.46
Current children cumulated vsize (KiB) 5696

[startup+3.10201 s]
/proc/loadavg: 2.78 2.54 2.16 4/83 12146
/proc/meminfo: memFree=1311368/2055920 swapFree=4192812/4192956
[pid=12140] ppid=12138 vsize=6684 CPUtime=3.05
/proc/12140/stat : 12140 (pcs.small) R 12138 12140 11281 0 -1 4194304 1471 822 0 0 305 0 0 0 25 0 1 0 57462231 6844416 982 996147200 134512640 135095119 4294956304 18446744073709551615 134578931 0 0 4096 0 0 0 0 17 0 0 0
/proc/12140/statm: 1671 982 387 142 0 625 0
Current children cumulated CPU time (s) 3.05
Current children cumulated vsize (KiB) 6684

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

[startup+4.70119 s]
/proc/loadavg: 2.78 2.54 2.16 4/83 12146
/proc/meminfo: memFree=1310024/2055920 swapFree=4192812/4192956
[pid=12140] ppid=12138 vsize=7964 CPUtime=4.63
/proc/12140/stat : 12140 (pcs.small) R 12138 12140 11281 0 -1 4194304 1819 822 0 0 462 1 0 0 25 0 1 0 57462231 8155136 1201 996147200 134512640 135095119 4294956304 18446744073709551615 10625685 0 0 4096 0 0 0 0 17 0 0 0
/proc/12140/statm: 1991 1201 387 142 0 945 0
Current children cumulated CPU time (s) 4.63
Current children cumulated vsize (KiB) 7964

[startup+5.10122 s]
/proc/loadavg: 2.78 2.54 2.16 4/83 12146
/proc/meminfo: memFree=1310024/2055920 swapFree=4192812/4192956
[pid=12140] ppid=12138 vsize=7964 CPUtime=5.03
/proc/12140/stat : 12140 (pcs.small) R 12138 12140 11281 0 -1 4194304 1830 822 0 0 502 1 0 0 25 0 1 0 57462231 8155136 1212 996147200 134512640 135095119 4294956304 18446744073709551615 134617326 0 0 4096 0 0 0 0 17 0 0 0
/proc/12140/statm: 1991 1212 387 142 0 945 0
Current children cumulated CPU time (s) 5.03
Current children cumulated vsize (KiB) 7964

[startup+5.30124 s]
/proc/loadavg: 2.78 2.54 2.16 4/83 12146
/proc/meminfo: memFree=1310024/2055920 swapFree=4192812/4192956
[pid=12140] ppid=12138 vsize=7964 CPUtime=5.23
/proc/12140/stat : 12140 (pcs.small) R 12138 12140 11281 0 -1 4194304 1841 822 0 0 522 1 0 0 25 0 1 0 57462231 8155136 1223 996147200 134512640 135095119 4294956304 18446744073709551615 134583505 0 0 4096 0 0 0 0 17 0 0 0
/proc/12140/statm: 1991 1223 387 142 0 945 0
Current children cumulated CPU time (s) 5.23
Current children cumulated vsize (KiB) 7964

Child status: 0
Real time (s): 5.3138
CPU time (s): 5.2562
CPU user time (s): 5.2382
CPU system time (s): 0.017997
CPU usage (%): 98.916
Max. virtual memory (cumulated for all children) (KiB): 7964

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 5.2382
system time used= 0.017997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2674
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= 137

runsolver used 0.006998 second user time and 0.023996 second system time

The end

Launcher Data 

Begin job on node7 at 2009-07-16 02:25:48
IDJOB=2065808
IDBENCH=54431
IDSOLVER=734
FILE ID=node7/2065808-1247703948
PBS_JOBID= 9521294
Free space on /tmp= 66112 MiB

SOLVER NAME= pcs-restart 0.2.restart
BENCH NAME= CPAI08/csp/ramsey3/normalized-ramsey-13-3.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2065808-1247703948/watcher-2065808-1247703948 -o /tmp/evaluation-result-2065808-1247703948/solver-2065808-1247703948 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 572416537 HOME/instance-2065808-1247703948.xml

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

MD5SUM BENCH= 8ae345bab31379895c363f2bae4c048e
RANDOM SEED=572416537

node7.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		: 3000.231
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		: 3000.231
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:       1314032 kB
Buffers:         78228 kB
Cached:         482228 kB
SwapCached:          0 kB
Active:         275588 kB
Inactive:       386636 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1314032 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2304 kB
Writeback:           0 kB
Mapped:         122192 kB
Slab:            64744 kB
Committed_AS:   642640 kB
PageTables:       2084 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= 66112 MiB
End job on node7 at 2009-07-16 02:25:54