Trace number 2080438

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 0.3.2UNSAT 164.86 165.663

DiagnosticValue
ASSIGNMENTS88559

General information on the benchmark

Namecsp/queensKnights/
normalized-queensKnights-8-5-add.xml
MD5SUM975c174ddd3fe86ae18e7a03c329b104
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.741886
Satisfiable
(Un)Satisfiability was proved
Number of variables13
Number of constraints38
Maximum constraint arity2
Maximum domain size64
Number of constraints which are defined in extension0
Number of constraints which are defined in intension38
Global constraints used (with number of constraints)

Solver Data 

0.00/0.01	c has big domains
0.00/0.01	c big-domain mode
0.18/0.21	c Seed is 2038647291
0.18/0.21	c Constructing HOME/instance-2080438-1247717696.xml 
0.18/0.21	c deduced all_different(V1,V2,V3,V4,V5,V6,V7,V0)
0.18/0.21	c  with 253 constraints
0.18/0.21	c Solving 88559 backtracks 19 restarts
164.79/165.64	s UNSATISFIABLE
164.79/165.64	d ASSIGNMENTS 88559

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2080438-1247717696/watcher-2080438-1247717696 -o /tmp/evaluation-result-2080438-1247717696/solver-2080438-1247717696 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 2038647291 HOME/instance-2080438-1247717696.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: 2.00 2.00 2.00 4/82 17347
/proc/meminfo: memFree=1513960/2055920 swapFree=4192812/4192956
[pid=17347] ppid=17345 vsize=5356 CPUtime=0
/proc/17347/stat : 17347 (pcssolve) R 17345 17347 14587 0 -1 4194304 273 0 0 0 0 0 0 0 20 0 1 0 58834935 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 210723465887 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/17347/statm: 1339 241 200 169 0 50 0
[pid=17348] ppid=17347 vsize=5356 CPUtime=0
/proc/17348/stat : 17348 (pcssolve) R 17347 17347 14587 0 -1 4194368 0 0 0 0 0 0 0 0 20 0 1 0 58834936 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 210723465887 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/17348/statm: 1339 241 200 169 0 50 0

[startup+0.068035 s]
/proc/loadavg: 2.00 2.00 2.00 4/82 17347
/proc/meminfo: memFree=1513960/2055920 swapFree=4192812/4192956
[pid=17347] ppid=17345 vsize=4764 CPUtime=0.05
/proc/17347/stat : 17347 (pcs.big) R 17345 17347 14587 0 -1 4194304 891 643 0 0 5 0 0 0 18 0 1 0 58834935 4878336 522 996147200 134512640 135215973 4294956304 18446744073709551615 134594149 0 0 4096 0 0 0 0 17 1 0 0
/proc/17347/statm: 1191 522 423 171 0 116 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 4764

[startup+0.101036 s]
/proc/loadavg: 2.00 2.00 2.00 4/82 17347
/proc/meminfo: memFree=1513960/2055920 swapFree=4192812/4192956
[pid=17347] ppid=17345 vsize=4764 CPUtime=0.08
/proc/17347/stat : 17347 (pcs.big) R 17345 17347 14587 0 -1 4194304 902 643 0 0 8 0 0 0 18 0 1 0 58834935 4878336 533 996147200 134512640 135215973 4294956304 18446744073709551615 134908308 0 0 4096 0 0 0 0 17 1 0 0
/proc/17347/statm: 1191 533 423 171 0 116 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 4764

[startup+0.301058 s]
/proc/loadavg: 2.00 2.00 2.00 4/82 17347
/proc/meminfo: memFree=1513960/2055920 swapFree=4192812/4192956
[pid=17347] ppid=17345 vsize=5024 CPUtime=0.28
/proc/17347/stat : 17347 (pcs.big) R 17345 17347 14587 0 -1 4194304 982 643 0 0 28 0 0 0 19 0 1 0 58834935 5144576 613 996147200 134512640 135215973 4294956304 18446744073709551615 134998863 0 0 4096 0 0 0 0 17 1 0 0
/proc/17347/statm: 1256 613 423 171 0 181 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 5024

[startup+0.701104 s]
/proc/loadavg: 2.00 2.00 2.00 4/82 17347
/proc/meminfo: memFree=1513960/2055920 swapFree=4192812/4192956
[pid=17347] ppid=17345 vsize=5544 CPUtime=0.68
/proc/17347/stat : 17347 (pcs.big) R 17345 17347 14587 0 -1 4194304 1119 643 0 0 68 0 0 0 23 0 1 0 58834935 5677056 750 996147200 134512640 135215973 4294956304 18446744073709551615 134648244 0 0 4096 0 0 0 0 17 1 0 0
/proc/17347/statm: 1386 750 423 171 0 311 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 5544

[startup+1.5012 s]
/proc/loadavg: 2.00 2.00 2.00 3/83 17352
/proc/meminfo: memFree=1512160/2055920 swapFree=4192812/4192956
[pid=17347] ppid=17345 vsize=6612 CPUtime=1.47
/proc/17347/stat : 17347 (pcs.big) R 17345 17347 14587 0 -1 4194304 1360 643 0 0 147 0 0 0 25 0 1 0 58834935 6770688 991 996147200 134512640 135215973 4294956304 18446744073709551615 134589845 0 0 4096 0 0 0 0 17 1 0 0
/proc/17347/statm: 1653 991 423 171 0 578 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 6612

[startup+3.10139 s]
/proc/loadavg: 2.00 2.00 2.00 3/83 17352
/proc/meminfo: memFree=1510944/2055920 swapFree=4192812/4192956
[pid=17347] ppid=17345 vsize=8048 CPUtime=3.07
/proc/17347/stat : 17347 (pcs.big) R 17345 17347 14587 0 -1 4194304 1752 643 0 0 307 0 0 0 25 0 1 0 58834935 8241152 1350 996147200 134512640 135215973 4294956304 18446744073709551615 134590020 0 0 4096 0 0 0 0 17 1 0 0
/proc/17347/statm: 2012 1350 423 171 0 937 0
Current children cumulated CPU time (s) 3.07
Current children cumulated vsize (KiB) 8048

[startup+6.30176 s]
/proc/loadavg: 2.00 2.00 2.00 3/83 17352
/proc/meminfo: memFree=1507616/2055920 swapFree=4192812/4192956
[pid=17347] ppid=17345 vsize=11700 CPUtime=6.25
/proc/17347/stat : 17347 (pcs.big) R 17345 17347 14587 0 -1 4194304 2710 643 0 0 625 0 0 0 25 0 1 0 58834935 11980800 2210 996147200 134512640 135215973 4294956304 18446744073709551615 134533249 0 0 4096 0 0 0 0 17 1 0 0
/proc/17347/statm: 2925 2210 423 171 0 1850 0
Current children cumulated CPU time (s) 6.25
Current children cumulated vsize (KiB) 11700

[startup+12.7015 s]
/proc/loadavg: 2.00 2.00 2.00 3/83 17352
/proc/meminfo: memFree=1500000/2055920 swapFree=4192812/4192956
[pid=17347] ppid=17345 vsize=18976 CPUtime=12.62
/proc/17347/stat : 17347 (pcs.big) R 17345 17347 14587 0 -1 4194304 4655 643 0 0 1261 1 0 0 25 0 1 0 58834935 19431424 3961 996147200 134512640 135215973 4294956304 18446744073709551615 4158960056 0 0 4096 0 0 0 0 17 1 0 0
/proc/17347/statm: 4744 3961 423 171 0 3669 0
Current children cumulated CPU time (s) 12.62
Current children cumulated vsize (KiB) 18976

[startup+25.501 s]
/proc/loadavg: 2.00 2.00 2.00 3/83 17352
/proc/meminfo: memFree=1488544/2055920 swapFree=4192812/4192956
[pid=17347] ppid=17345 vsize=30692 CPUtime=25.36
/proc/17347/stat : 17347 (pcs.big) R 17345 17347 14587 0 -1 4194304 7804 643 0 0 2533 3 0 0 25 0 1 0 58834935 31428608 6724 996147200 134512640 135215973 4294956304 18446744073709551615 4158960193 0 0 4096 0 0 0 0 17 1 0 0
/proc/17347/statm: 7673 6724 423 171 0 6598 0
Current children cumulated CPU time (s) 25.36
Current children cumulated vsize (KiB) 30692

[startup+51.101 s]
/proc/loadavg: 2.00 2.00 2.00 3/83 17352
/proc/meminfo: memFree=1464736/2055920 swapFree=4192812/4192956
[pid=17347] ppid=17345 vsize=55940 CPUtime=50.83
/proc/17347/stat : 17347 (pcs.big) R 17345 17347 14587 0 -1 4194304 14612 643 0 0 5076 7 0 0 25 0 1 0 58834935 57282560 12762 996147200 134512640 135215973 4294956304 18446744073709551615 134589765 0 0 4096 0 0 0 0 17 1 0 0
/proc/17347/statm: 13985 12762 423 171 0 12910 0
Current children cumulated CPU time (s) 50.83
Current children cumulated vsize (KiB) 55940

[startup+102.306 s]
/proc/loadavg: 2.00 2.00 2.00 3/83 17352
/proc/meminfo: memFree=1424160/2055920 swapFree=4192812/4192956
[pid=17347] ppid=17345 vsize=96480 CPUtime=101.79
/proc/17347/stat : 17347 (pcs.big) R 17345 17347 14587 0 -1 4194304 25574 643 0 0 10163 16 0 0 25 0 1 0 58834935 98795520 22699 996147200 134512640 135215973 4294956304 18446744073709551615 134648275 0 0 4096 0 0 0 0 17 1 0 0
/proc/17347/statm: 24120 22699 423 171 0 23045 0
Current children cumulated CPU time (s) 101.79
Current children cumulated vsize (KiB) 96480

[startup+162.301 s]
/proc/loadavg: 2.00 2.00 2.00 3/83 17352
/proc/meminfo: memFree=1388384/2055920 swapFree=4192812/4192956
[pid=17347] ppid=17345 vsize=131648 CPUtime=161.5
/proc/17347/stat : 17347 (pcs.big) R 17345 17347 14587 0 -1 4194304 35041 643 0 0 16127 23 0 0 25 0 1 0 58834935 134807552 31653 996147200 134512640 135215973 4294956304 18446744073709551615 4158960050 0 0 4096 0 0 0 0 17 1 0 0
/proc/17347/statm: 32912 31653 423 171 0 31837 0
Current children cumulated CPU time (s) 161.5
Current children cumulated vsize (KiB) 131648

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

[startup+163.101 s]
/proc/loadavg: 2.00 2.00 2.00 3/83 17352
/proc/meminfo: memFree=1387680/2055920 swapFree=4192812/4192956
[pid=17347] ppid=17345 vsize=132044 CPUtime=162.29
/proc/17347/stat : 17347 (pcs.big) R 17345 17347 14587 0 -1 4194304 35178 643 0 0 16206 23 0 0 25 0 1 0 58834935 135213056 31790 996147200 134512640 135215973 4294956304 18446744073709551615 134610792 0 0 4096 0 0 0 0 17 1 0 0
/proc/17347/statm: 33011 31790 423 171 0 31936 0
Current children cumulated CPU time (s) 162.29
Current children cumulated vsize (KiB) 132044

[startup+164.701 s]
/proc/loadavg: 2.00 2.00 2.00 3/83 17352
/proc/meminfo: memFree=1387040/2055920 swapFree=4192812/4192956
[pid=17347] ppid=17345 vsize=132824 CPUtime=163.89
/proc/17347/stat : 17347 (pcs.big) R 17345 17347 14587 0 -1 4194304 35386 643 0 0 16365 24 0 0 25 0 1 0 58834935 136011776 31998 996147200 134512640 135215973 4294956304 18446744073709551615 134591100 0 0 4096 0 0 0 0 17 1 0 0
/proc/17347/statm: 33206 31998 423 171 0 32131 0
Current children cumulated CPU time (s) 163.89
Current children cumulated vsize (KiB) 132824

[startup+165.102 s]
/proc/loadavg: 2.00 2.00 2.00 3/83 17352
/proc/meminfo: memFree=1386464/2055920 swapFree=4192812/4192956
[pid=17347] ppid=17345 vsize=133084 CPUtime=164.29
/proc/17347/stat : 17347 (pcs.big) R 17345 17347 14587 0 -1 4194304 35432 643 0 0 16405 24 0 0 25 0 1 0 58834935 136278016 32044 996147200 134512640 135215973 4294956304 18446744073709551615 134585720 0 0 4096 0 0 0 0 17 1 0 0
/proc/17347/statm: 33271 32044 423 171 0 32196 0
Current children cumulated CPU time (s) 164.29
Current children cumulated vsize (KiB) 133084

[startup+165.502 s]
/proc/loadavg: 2.00 2.00 2.00 3/83 17352
/proc/meminfo: memFree=1386464/2055920 swapFree=4192812/4192956
[pid=17347] ppid=17345 vsize=129112 CPUtime=164.69
/proc/17347/stat : 17347 (pcs.big) R 17345 17347 14587 0 -1 4194304 35479 643 0 0 16445 24 0 0 25 0 1 0 58834935 132210688 31397 996147200 134512640 135215973 4294956304 18446744073709551615 134532677 0 0 4096 0 0 0 0 17 1 0 0
/proc/17347/statm: 32278 31397 423 171 0 31203 0
Current children cumulated CPU time (s) 164.69
Current children cumulated vsize (KiB) 129112

[startup+165.602 s]
/proc/loadavg: 2.00 2.00 2.00 3/83 17352
/proc/meminfo: memFree=1386464/2055920 swapFree=4192812/4192956
[pid=17347] ppid=17345 vsize=129112 CPUtime=164.79
/proc/17347/stat : 17347 (pcs.big) R 17345 17347 14587 0 -1 4194304 35479 643 0 0 16455 24 0 0 25 0 1 0 58834935 132210688 31397 996147200 134512640 135215973 4294956304 18446744073709551615 8138876 0 0 4096 0 0 0 0 17 1 0 0
/proc/17347/statm: 32278 31397 423 171 0 31203 0
Current children cumulated CPU time (s) 164.79
Current children cumulated vsize (KiB) 129112

Child status: 0
Real time (s): 165.663
CPU time (s): 164.86
CPU user time (s): 164.592
CPU system time (s): 0.267959
CPU usage (%): 99.5155
Max. virtual memory (cumulated for all children) (KiB): 133212

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 164.592
system time used= 0.267959
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 36124
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= 5069

runsolver used 0.201969 second user time and 0.558915 second system time

The end

Launcher Data 

Begin job on node73 at 2009-07-16 06:14:56
IDJOB=2080438
IDBENCH=57088
IDSOLVER=734
FILE ID=node73/2080438-1247717696
PBS_JOBID= 9521451
Free space on /tmp= 66428 MiB

SOLVER NAME= pcs-restart 0.2.restart
BENCH NAME= CPAI08/csp/queensKnights/normalized-queensKnights-8-5-add.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2080438-1247717696/watcher-2080438-1247717696 -o /tmp/evaluation-result-2080438-1247717696/solver-2080438-1247717696 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 2038647291 HOME/instance-2080438-1247717696.xml

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

MD5SUM BENCH= 975c174ddd3fe86ae18e7a03c329b104
RANDOM SEED=2038647291

node73.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		: 3000.213
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		: 3000.213
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:       1514440 kB
Buffers:         78824 kB
Cached:         314828 kB
SwapCached:          0 kB
Active:         169480 kB
Inactive:       285772 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1514440 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1728 kB
Writeback:           0 kB
Mapped:          81980 kB
Slab:            71368 kB
Committed_AS:   580880 kB
PageTables:       1920 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= 66428 MiB
End job on node73 at 2009-07-16 06:17:42