Trace number 2090997

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 2.40663 2.43101

DiagnosticValue
ASSIGNMENTS26

General information on the benchmark

Namecsp/tightness0.9/
normalized-rand-2-40-180-84-900-91_ext.xml
MD5SUM1c4d52c30b8a01d9f2e798105238c847
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 benchmark0.39294
Satisfiable
(Un)Satisfiability was proved
Number of variables40
Number of constraints84
Maximum constraint arity2
Maximum domain size180
Number of constraints which are defined in extension84
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data 

0.00/0.02	c has big domains
0.00/0.02	c big-domain mode
0.00/0.04	c Seed is 115013798
0.00/0.04	c Constructing HOME/instance-2090997-1247731277.xml  with 84 constraints
0.67/0.77	c Solving 26 backtracks 1 restarts
2.35/2.42	s SATISFIABLE
2.35/2.42	c V0=64, V1=31, V2=164, V3=114, V4=159, V5=160, V6=134, V7=106, V8=87, V9=12, V10=110, V11=3, V12=97, V13=7, V14=67, V15=78, V16=141, V17=114, V18=125, V19=146, V20=179, V21=145, V22=134, V23=149, V24=156, V25=39, V26=172, V27=178, V28=175, V29=123, V30=1, V31=111, V32=118, V33=18, V34=47, V35=130, V36=177, V37=5, V38=92, V39=57, 
2.35/2.42	v 64 31 164 114 159 160 134 106 87 12 110 3 97 7 67 78 141 114 125 146 179 145 134 149 156 39 172 178 175 123 1 111 118 18 47 130 177 5 92 57 
2.35/2.42	d ASSIGNMENTS 26

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-2090997-1247731277/watcher-2090997-1247731277 -o /tmp/evaluation-result-2090997-1247731277/solver-2090997-1247731277 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 115013798 HOME/instance-2090997-1247731277.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: 2.04 2.02 2.00 4/72 15645
/proc/meminfo: memFree=1450904/2055920 swapFree=4192812/4192956
[pid=15645] ppid=15643 vsize=5356 CPUtime=0
/proc/15645/stat : 15645 (pcssolve) R 15643 15645 14535 0 -1 4194304 269 0 0 0 0 0 0 0 20 0 1 0 60191661 5484544 237 996147200 4194304 4889804 548682068800 18446744073709551615 259414987489 0 0 4100 65536 0 0 0 17 1 0 0
/proc/15645/statm: 1339 237 197 169 0 50 0

[startup+0.106543 s]
/proc/loadavg: 2.04 2.02 2.00 4/72 15645
/proc/meminfo: memFree=1450904/2055920 swapFree=4192812/4192956
[pid=15645] ppid=15643 vsize=5336 CPUtime=0.07
/proc/15645/stat : 15645 (pcs.big) R 15643 15645 14535 0 -1 4194304 916 656 0 0 7 0 0 0 18 0 1 0 60191661 5464064 547 996147200 134512640 135215973 4294956304 18446744073709551615 134583607 0 0 4096 0 0 0 0 17 1 0 0
/proc/15645/statm: 1334 547 383 171 0 259 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 5336

[startup+0.201558 s]
/proc/loadavg: 2.04 2.02 2.00 4/72 15645
/proc/meminfo: memFree=1450904/2055920 swapFree=4192812/4192956
[pid=15645] ppid=15643 vsize=6372 CPUtime=0.17
/proc/15645/stat : 15645 (pcs.big) R 15643 15645 14535 0 -1 4194304 1035 656 0 0 17 0 0 0 18 0 1 0 60191661 6524928 666 996147200 134512640 135215973 4294956304 18446744073709551615 12873310 0 0 4096 0 0 0 0 17 1 0 0
/proc/15645/statm: 1593 666 383 171 0 518 0
Current children cumulated CPU time (s) 0.17
Current children cumulated vsize (KiB) 6372

[startup+0.301578 s]
/proc/loadavg: 2.04 2.02 2.00 4/72 15645
/proc/meminfo: memFree=1450904/2055920 swapFree=4192812/4192956
[pid=15645] ppid=15643 vsize=7532 CPUtime=0.27
/proc/15645/stat : 15645 (pcs.big) R 15643 15645 14535 0 -1 4194304 1161 656 0 0 27 0 0 0 19 0 1 0 60191661 7712768 792 996147200 134512640 135215973 4294956304 18446744073709551615 134882160 0 0 4096 0 0 0 0 17 1 0 0
/proc/15645/statm: 1883 792 383 171 0 808 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 7532

[startup+0.701654 s]
/proc/loadavg: 2.04 2.02 2.00 4/72 15645
/proc/meminfo: memFree=1450904/2055920 swapFree=4192812/4192956
[pid=15645] ppid=15643 vsize=11924 CPUtime=0.67
/proc/15645/stat : 15645 (pcs.big) R 15643 15645 14535 0 -1 4194304 1647 656 0 0 66 1 0 0 23 0 1 0 60191661 12210176 1278 996147200 134512640 135215973 4294956304 18446744073709551615 12840382 0 0 4096 0 0 0 0 17 1 0 0
/proc/15645/statm: 2981 1278 383 171 0 1906 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 11924

[startup+1.50181 s]
/proc/loadavg: 2.04 2.02 2.00 3/73 15650
/proc/meminfo: memFree=1445840/2055920 swapFree=4192812/4192956
[pid=15645] ppid=15643 vsize=13280 CPUtime=1.46
/proc/15645/stat : 15645 (pcs.big) R 15643 15645 14535 0 -1 4194304 1976 656 0 0 145 1 0 0 25 0 1 0 60191661 13598720 1607 996147200 134512640 135215973 4294956304 18446744073709551615 134532896 0 0 4096 0 0 0 0 17 1 0 0
/proc/15645/statm: 3320 1607 401 171 0 2245 0
Current children cumulated CPU time (s) 1.46
Current children cumulated vsize (KiB) 13280

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

[startup+1.60183 s]
/proc/loadavg: 2.04 2.02 2.00 3/73 15650
/proc/meminfo: memFree=1445840/2055920 swapFree=4192812/4192956
[pid=15645] ppid=15643 vsize=13280 CPUtime=1.56
/proc/15645/stat : 15645 (pcs.big) R 15643 15645 14535 0 -1 4194304 1977 656 0 0 155 1 0 0 25 0 1 0 60191661 13598720 1608 996147200 134512640 135215973 4294956304 18446744073709551615 134590188 0 0 4096 0 0 0 0 17 1 0 0
/proc/15645/statm: 3320 1608 401 171 0 2245 0
Current children cumulated CPU time (s) 1.56
Current children cumulated vsize (KiB) 13280

[startup+2.00191 s]
/proc/loadavg: 2.04 2.02 2.00 3/73 15650
/proc/meminfo: memFree=1445840/2055920 swapFree=4192812/4192956
[pid=15645] ppid=15643 vsize=13280 CPUtime=1.96
/proc/15645/stat : 15645 (pcs.big) R 15643 15645 14535 0 -1 4194304 1982 656 0 0 195 1 0 0 25 0 1 0 60191661 13598720 1613 996147200 134512640 135215973 4294956304 18446744073709551615 135026790 0 0 4096 0 0 0 0 17 1 0 0
/proc/15645/statm: 3320 1613 401 171 0 2245 0
Current children cumulated CPU time (s) 1.96
Current children cumulated vsize (KiB) 13280

[startup+2.40198 s]
/proc/loadavg: 2.04 2.02 2.00 3/73 15650
/proc/meminfo: memFree=1445392/2055920 swapFree=4192812/4192956
[pid=15645] ppid=15643 vsize=13280 CPUtime=2.35
/proc/15645/stat : 15645 (pcs.big) R 15643 15645 14535 0 -1 4194304 2000 656 0 0 234 1 0 0 25 0 1 0 60191661 13598720 1631 996147200 134512640 135215973 4294956304 18446744073709551615 135020412 0 0 4096 0 0 0 0 17 1 0 0
/proc/15645/statm: 3320 1631 401 171 0 2245 0
Current children cumulated CPU time (s) 2.35
Current children cumulated vsize (KiB) 13280

Child status: 0
Real time (s): 2.43101
CPU time (s): 2.40663
CPU user time (s): 2.38264
CPU system time (s): 0.023996
CPU usage (%): 98.9971
Max. virtual memory (cumulated for all children) (KiB): 13280

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.38264
system time used= 0.023996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2664
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= 19
involuntary context switches= 62

runsolver used 0.008998 second user time and 0.009998 second system time

The end

Launcher Data 

Begin job on node42 at 2009-07-16 10:01:17
IDJOB=2090997
IDBENCH=59972
IDSOLVER=733
FILE ID=node42/2090997-1247731277
PBS_JOBID= 9521628
Free space on /tmp= 66292 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/tightness0.9/normalized-rand-2-40-180-84-900-91_ext.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2090997-1247731277/watcher-2090997-1247731277 -o /tmp/evaluation-result-2090997-1247731277/solver-2090997-1247731277 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 115013798 HOME/instance-2090997-1247731277.xml

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

MD5SUM BENCH= 1c4d52c30b8a01d9f2e798105238c847
RANDOM SEED=115013798

node42.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		: 3000.283
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		: 3000.283
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:       1451448 kB
Buffers:         90288 kB
Cached:         352392 kB
SwapCached:          0 kB
Active:         159364 kB
Inactive:       355192 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1451448 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3672 kB
Writeback:           0 kB
Mapped:          83400 kB
Slab:            75372 kB
Committed_AS:   603512 kB
PageTables:       1840 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 node42 at 2009-07-16 10:01:20