Trace number 2080911

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 22.7245 22.9372

DiagnosticValue
ASSIGNMENTS9046

General information on the benchmark

Namecsp/langford3/
normalized-langford-3-11.xml
MD5SUMcc39bb6005e6336edb9143afa2108552
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 benchmark0.756884
Satisfiable
(Un)Satisfiability was proved
Number of variables33
Number of constraints550
Maximum constraint arity2
Maximum domain size33
Number of constraints which are defined in extension0
Number of constraints which are defined in intension550
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
0.00/0.02	c Seed is 677756564
0.00/0.02	c Constructing HOME/instance-2080911-1247719061.xml 
0.02/0.03	c deduced all_different(V1,V2,V3,V4,V5,V6,V7,V8,V9,V10,V11,V12,V13,V14,V15,V16,V17,V18,V19,V20,V21,V22,V23,V24,V25,V26,V27,V28,V29,V30,V31,V32,V0)
0.02/0.03	c  with 551 constraints
0.02/0.03	c Solving 9046 backtracks 13 restarts
22.68/22.92	s UNSATISFIABLE
22.68/22.92	d ASSIGNMENTS 9046

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-2080911-1247719061/watcher-2080911-1247719061 -o /tmp/evaluation-result-2080911-1247719061/solver-2080911-1247719061 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 677756564 HOME/instance-2080911-1247719061.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 4/72 19590
/proc/meminfo: memFree=1319592/2055920 swapFree=4192812/4192956
[pid=19590] ppid=19588 vsize=5356 CPUtime=0
/proc/19590/stat : 19590 (pcssolve) R 19588 19590 17507 0 -1 4194304 273 0 0 0 0 0 0 0 20 0 1 0 58968873 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 271638391455 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/19590/statm: 1339 241 200 169 0 50 0
[pid=19591] ppid=19590 vsize=5356 CPUtime=0
/proc/19591/stat : 19591 (pcssolve) R 19590 19590 17507 0 -1 4194368 0 0 0 0 0 0 0 0 20 0 1 0 58968874 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 271638391455 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/19591/statm: 1339 241 200 169 0 50 0

[startup+0.0384461 s]
/proc/loadavg: 2.00 2.00 2.00 4/72 19590
/proc/meminfo: memFree=1319592/2055920 swapFree=4192812/4192956
[pid=19590] ppid=19588 vsize=4620 CPUtime=0.02
/proc/19590/stat : 19590 (pcs.big) R 19588 19590 17507 0 -1 4194304 833 654 0 0 2 0 0 0 23 0 1 0 58968873 4730880 464 996147200 134512640 135215973 4294956304 18446744073709551615 134590055 0 0 4096 0 0 0 0 17 1 0 0
/proc/19590/statm: 1155 464 384 171 0 80 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 4620

[startup+0.102453 s]
/proc/loadavg: 2.00 2.00 2.00 4/72 19590
/proc/meminfo: memFree=1319592/2055920 swapFree=4192812/4192956
[pid=19590] ppid=19588 vsize=4752 CPUtime=0.08
/proc/19590/stat : 19590 (pcs.big) R 19588 19590 17507 0 -1 4194304 900 654 0 0 8 0 0 0 23 0 1 0 58968873 4866048 531 996147200 134512640 135215973 4294956304 18446744073709551615 134943656 0 0 4096 0 0 0 0 17 1 0 0
/proc/19590/statm: 1188 531 408 171 0 113 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 4752

[startup+0.301472 s]
/proc/loadavg: 2.00 2.00 2.00 4/72 19590
/proc/meminfo: memFree=1319592/2055920 swapFree=4192812/4192956
[pid=19590] ppid=19588 vsize=5276 CPUtime=0.28
/proc/19590/stat : 19590 (pcs.big) R 19588 19590 17507 0 -1 4194304 1008 654 0 0 28 0 0 0 25 0 1 0 58968873 5402624 639 996147200 134512640 135215973 4294956304 18446744073709551615 134592674 0 0 4096 0 0 0 0 17 1 0 0
/proc/19590/statm: 1319 639 408 171 0 244 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 5276

[startup+0.701514 s]
/proc/loadavg: 2.00 2.00 2.00 4/72 19590
/proc/meminfo: memFree=1319592/2055920 swapFree=4192812/4192956
[pid=19590] ppid=19588 vsize=6080 CPUtime=0.67
/proc/19590/stat : 19590 (pcs.big) R 19588 19590 17507 0 -1 4194304 1216 654 0 0 67 0 0 0 25 0 1 0 58968873 6225920 847 996147200 134512640 135215973 4294956304 18446744073709551615 134597519 0 0 4096 0 0 0 0 17 1 0 0
/proc/19590/statm: 1520 847 408 171 0 445 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 6080

[startup+1.5026 s]
/proc/loadavg: 2.00 2.00 2.00 3/73 19595
/proc/meminfo: memFree=1316896/2055920 swapFree=4192812/4192956
[pid=19590] ppid=19588 vsize=7820 CPUtime=1.47
/proc/19590/stat : 19590 (pcs.big) R 19588 19590 17507 0 -1 4194304 1659 654 0 0 147 0 0 0 25 0 1 0 58968873 8007680 1290 996147200 134512640 135215973 4294956304 18446744073709551615 7007345 0 0 4096 0 0 0 0 17 1 0 0
/proc/19590/statm: 1955 1290 408 171 0 880 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 7820

[startup+3.10176 s]
/proc/loadavg: 2.00 2.00 2.00 3/73 19595
/proc/meminfo: memFree=1314272/2055920 swapFree=4192812/4192956
[pid=19590] ppid=19588 vsize=11348 CPUtime=3.05
/proc/19590/stat : 19590 (pcs.big) R 19588 19590 17507 0 -1 4194304 2586 654 0 0 305 0 0 0 25 0 1 0 58968873 11620352 2119 996147200 134512640 135215973 4294956304 18446744073709551615 134532714 0 0 4096 0 0 0 0 17 1 0 0
/proc/19590/statm: 2837 2119 408 171 0 1762 0
Current children cumulated CPU time (s) 3.05
Current children cumulated vsize (KiB) 11348

[startup+6.30109 s]
/proc/loadavg: 2.00 2.00 2.00 3/73 19595
/proc/meminfo: memFree=1306912/2055920 swapFree=4192812/4192956
[pid=19590] ppid=19588 vsize=18272 CPUtime=6.23
/proc/19590/stat : 19590 (pcs.big) R 19588 19590 17507 0 -1 4194304 4366 654 0 0 621 2 0 0 25 0 1 0 58968873 18710528 3770 996147200 134512640 135215973 4294956304 18446744073709551615 4158960028 0 0 4096 0 0 0 0 17 1 0 0
/proc/19590/statm: 4568 3770 408 171 0 3493 0
Current children cumulated CPU time (s) 6.23
Current children cumulated vsize (KiB) 18272

[startup+12.7018 s]
/proc/loadavg: 2.00 2.00 2.00 3/73 19595
/proc/meminfo: memFree=1292768/2055920 swapFree=4192812/4192956
[pid=19590] ppid=19588 vsize=31580 CPUtime=12.57
/proc/19590/stat : 19590 (pcs.big) R 19588 19590 17507 0 -1 4194304 7861 654 0 0 1254 3 0 0 25 0 1 0 58968873 32337920 6975 996147200 134512640 135215973 4294956304 18446744073709551615 134609797 0 0 4096 0 0 0 0 17 1 0 0
/proc/19590/statm: 7895 6975 408 171 0 6820 0
Current children cumulated CPU time (s) 12.57
Current children cumulated vsize (KiB) 31580

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

[startup+19.1014 s]
/proc/loadavg: 2.00 2.00 2.00 3/73 19595
/proc/meminfo: memFree=1279136/2055920 swapFree=4192812/4192956
[pid=19590] ppid=19588 vsize=44036 CPUtime=18.91
/proc/19590/stat : 19590 (pcs.big) R 19588 19590 17507 0 -1 4194304 11122 654 0 0 1887 4 0 0 25 0 1 0 58968873 45092864 10171 996147200 134512640 135215973 4294956304 18446744073709551615 134566527 0 0 4096 0 0 0 0 17 1 0 0
/proc/19590/statm: 11009 10171 408 171 0 9934 0
Current children cumulated CPU time (s) 18.91
Current children cumulated vsize (KiB) 44036

[startup+20.7016 s]
/proc/loadavg: 2.00 2.00 2.00 3/73 19595
/proc/meminfo: memFree=1276320/2055920 swapFree=4192812/4192956
[pid=19590] ppid=19588 vsize=47056 CPUtime=20.49
/proc/19590/stat : 19590 (pcs.big) R 19588 19590 17507 0 -1 4194304 11916 654 0 0 2044 5 0 0 25 0 1 0 58968873 48185344 10965 996147200 134512640 135215973 4294956304 18446744073709551615 134923800 0 0 4096 0 0 0 0 17 1 0 0
/proc/19590/statm: 11764 10965 408 171 0 10689 0
Current children cumulated CPU time (s) 20.49
Current children cumulated vsize (KiB) 47056

[startup+22.3017 s]
/proc/loadavg: 2.00 2.00 2.00 3/73 19595
/proc/meminfo: memFree=1271712/2055920 swapFree=4192812/4192956
[pid=19590] ppid=19588 vsize=49936 CPUtime=22.08
/proc/19590/stat : 19590 (pcs.big) R 19588 19590 17507 0 -1 4194304 12659 654 0 0 2203 5 0 0 25 0 1 0 58968873 51134464 11708 996147200 134512640 135215973 4294956304 18446744073709551615 134589862 0 0 4096 0 0 0 0 17 1 0 0
/proc/19590/statm: 12484 11708 408 171 0 11409 0
Current children cumulated CPU time (s) 22.08
Current children cumulated vsize (KiB) 49936

[startup+22.7018 s]
/proc/loadavg: 2.00 2.00 2.00 3/73 19595
/proc/meminfo: memFree=1271712/2055920 swapFree=4192812/4192956
[pid=19590] ppid=19588 vsize=50588 CPUtime=22.47
/proc/19590/stat : 19590 (pcs.big) R 19588 19590 17507 0 -1 4194304 12838 654 0 0 2242 5 0 0 25 0 1 0 58968873 51802112 11887 996147200 134512640 135215973 4294956304 18446744073709551615 7323480 0 0 4096 0 0 0 0 17 1 0 0
/proc/19590/statm: 12647 11887 408 171 0 11572 0
Current children cumulated CPU time (s) 22.47
Current children cumulated vsize (KiB) 50588

[startup+22.9018 s]
/proc/loadavg: 2.00 2.00 2.00 3/73 19595
/proc/meminfo: memFree=1271712/2055920 swapFree=4192812/4192956
[pid=19590] ppid=19588 vsize=50328 CPUtime=22.68
/proc/19590/stat : 19590 (pcs.big) R 19588 19590 17507 0 -1 4194304 12909 654 0 0 2262 6 0 0 25 0 1 0 58968873 51535872 11883 996147200 134512640 135215973 4294956304 18446744073709551615 134532677 0 0 4096 0 0 0 0 17 1 0 0
/proc/19590/statm: 12582 11883 408 171 0 11507 0
Current children cumulated CPU time (s) 22.68
Current children cumulated vsize (KiB) 50328

Child status: 0
Real time (s): 22.9372
CPU time (s): 22.7245
CPU user time (s): 22.6506
CPU system time (s): 0.073988
CPU usage (%): 99.0727
Max. virtual memory (cumulated for all children) (KiB): 50716

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 22.6506
system time used= 0.073988
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 13566
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= 502

runsolver used 0.031995 second user time and 0.077988 second system time

The end

Launcher Data 

Begin job on node67 at 2009-07-16 06:37:41
IDJOB=2080911
IDBENCH=57191
IDSOLVER=734
FILE ID=node67/2080911-1247719061
PBS_JOBID= 9521463
Free space on /tmp= 66332 MiB

SOLVER NAME= pcs-restart 0.2.restart
BENCH NAME= CPAI08/csp/langford3/normalized-langford-3-11.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2080911-1247719061/watcher-2080911-1247719061 -o /tmp/evaluation-result-2080911-1247719061/solver-2080911-1247719061 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 677756564 HOME/instance-2080911-1247719061.xml

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

MD5SUM BENCH= cc39bb6005e6336edb9143afa2108552
RANDOM SEED=677756564

node67.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		: 3000.239
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		: 3000.239
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:       1320072 kB
Buffers:         73100 kB
Cached:         264656 kB
SwapCached:          0 kB
Active:         396880 kB
Inactive:       264888 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1320072 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1776 kB
Writeback:           0 kB
Mapped:         335516 kB
Slab:            58844 kB
Committed_AS:   794876 kB
PageTables:       2468 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= 66332 MiB
End job on node67 at 2009-07-16 06:38:04