Trace number 1093817

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
casper zaoSAT 12.0382 12.2277

DiagnosticValue
CHECKS39991700

General information on the benchmark

Namecsp/queens/
normalized-queens-30.xml
MD5SUM8ee67e9ea63e7269661dbf55146a7059
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.112981
Satisfiable
(Un)Satisfiability was proved
Number of variables30
Number of constraints435
Maximum constraint arity2
Maximum domain size30
Number of constraints which are defined in extension0
Number of constraints which are defined in intension435
Global constraints used (with number of constraints)

Solver Data (download as text)

0.18/0.23	c [ This is CaSPERzao (C) mvc@di.fct.unl.pt ]
0.18/0.23	c Parsing = 1
0.18/0.23	c Building = 1
0.57/0.69	c [ NumberOfVariables = 30 ]
0.57/0.69	c [ NumberOfConstraints = 435 ]
0.57/0.69	c [ SizeOfSearchSpace(log2) = 147.207 ]
0.57/0.69	c SymmetrySearch = 1
0.68/0.70	c [ Found 2 symmetries ]
0.68/0.70	c InitialPropagation = 1
0.68/0.70	c [ SizeOfSearchSpace(log2) = 147.207 ]
0.68/0.70	c InitialSAC = 1
0.68/0.70	c [ SizeOfSearchSpace(log2) = 147.207 ]
0.68/0.70	c Search(SampleFF) : 
12.00/12.22	c [ Sampling domwdeg ]
12.00/12.22	c Search(SampleFF) = 1
12.00/12.22	s SATISFIABLE
12.00/12.22	v 10 8 4 23 13 18 29 7 30 15 24 16 28 17 2 14 9 3 26 22 12 1 6 19 25 20 5 21 11 27
12.00/12.22	d CHECKS 39991719
12.00/12.22	c [ TotalFails = 21772 ]
12.00/12.22	c [ NumberOfRestarts = 11 ]
12.00/12.22	c [ TotalTime = 11.3858 secs ]

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.5 (c) roussel@cril.univ-artois.fr

command line: /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1093817-1215278190/watcher-1093817-1215278190 -o /tmp/evaluation-result-1093817-1215278190/solver-1093817-1215278190 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/casperzao HOME/instance-1093817-1215278190.xml 1181626995 

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): 2200 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
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 2.03 2.00 2.00 4/93 29705
/proc/meminfo: memFree=1500632/2055920 swapFree=4122904/4192956
[pid=29705] ppid=29703 vsize=18572 CPUtime=0
/proc/29705/stat : 29705 (runsolver) R 29703 29705 28795 0 -1 4194368 15 0 0 0 0 0 0 0 20 0 1 0 1557494093 19017728 292 996147200 4194304 4296836 548682068464 18446744073709551615 252429528359 0 0 4096 24578 0 0 0 17 1 0 0
/proc/29705/statm: 4643 292 257 25 0 2626 0

[startup+0.0758891 s]
/proc/loadavg: 2.03 2.00 2.00 4/93 29705
/proc/meminfo: memFree=1500632/2055920 swapFree=4122904/4192956
[pid=29705] ppid=29703 vsize=286844 CPUtime=0.05
/proc/29705/stat : 29705 (casperzao) R 29703 29705 28795 0 -1 4194304 1100 0 0 0 5 0 0 0 18 0 1 0 1557494093 293728256 579 996147200 134512640 135477443 4294956224 18446744073709551615 135268706 0 0 4096 0 0 0 0 17 1 0 0
/proc/29705/statm: 71711 580 455 235 0 70412 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 286844

[startup+0.102886 s]
/proc/loadavg: 2.03 2.00 2.00 4/93 29705
/proc/meminfo: memFree=1500632/2055920 swapFree=4122904/4192956
[pid=29705] ppid=29703 vsize=286976 CPUtime=0.09
/proc/29705/stat : 29705 (casperzao) R 29703 29705 28795 0 -1 4194304 1385 0 0 0 8 1 0 0 18 0 1 0 1557494093 293863424 594 996147200 134512640 135477443 4294956224 18446744073709551615 135268706 0 0 4096 0 0 0 0 17 1 0 0
/proc/29705/statm: 71744 594 455 235 0 70445 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 286976

[startup+0.301906 s]
/proc/loadavg: 2.03 2.00 2.00 4/93 29705
/proc/meminfo: memFree=1500632/2055920 swapFree=4122904/4192956
[pid=29705] ppid=29703 vsize=287240 CPUtime=0.27
/proc/29705/stat : 29705 (casperzao) R 29703 29705 28795 0 -1 4194304 3391 0 0 0 25 2 0 0 19 0 1 0 1557494093 294133760 695 996147200 134512640 135477443 4294956224 18446744073709551615 135268706 0 0 4096 0 0 0 0 17 1 0 0
/proc/29705/statm: 71810 695 455 235 0 70511 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 287240

[startup+0.701946 s]
/proc/loadavg: 2.03 2.00 2.00 4/93 29705
/proc/meminfo: memFree=1500632/2055920 swapFree=4122904/4192956
[pid=29705] ppid=29703 vsize=100928 CPUtime=0.68
/proc/29705/stat : 29705 (casperzao) R 29703 29705 28795 0 -1 4194304 7610 0 0 0 62 6 0 0 23 0 1 0 1557494093 103350272 1045 996147200 134512640 135477443 4294956224 18446744073709551615 134543232 0 0 4096 0 0 0 0 17 1 0 0
/proc/29705/statm: 25232 1046 490 235 0 23933 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 100928

[startup+1.50102 s]
/proc/loadavg: 2.03 2.00 2.00 3/94 29706
/proc/meminfo: memFree=1498064/2055920 swapFree=4122904/4192956
[pid=29705] ppid=29703 vsize=100876 CPUtime=1.46
/proc/29705/stat : 29705 (casperzao) R 29703 29705 28795 0 -1 4194304 7681 0 0 0 140 6 0 0 25 0 1 0 1557494093 103297024 1116 996147200 134512640 135477443 4294956224 18446744073709551615 135269728 0 0 4096 0 0 0 0 17 1 0 0
/proc/29705/statm: 25219 1116 507 235 0 23920 0
Current children cumulated CPU time (s) 1.46
Current children cumulated vsize (KiB) 100876

[startup+3.10119 s]
/proc/loadavg: 2.03 2.00 2.00 3/94 29706
/proc/meminfo: memFree=1497936/2055920 swapFree=4122904/4192956
[pid=29705] ppid=29703 vsize=100876 CPUtime=3.04
/proc/29705/stat : 29705 (casperzao) R 29703 29705 28795 0 -1 4194304 7682 0 0 0 298 6 0 0 25 0 1 0 1557494093 103297024 1117 996147200 134512640 135477443 4294956224 18446744073709551615 134919569 0 0 4096 0 0 0 0 17 1 0 0
/proc/29705/statm: 25219 1117 507 235 0 23920 0
Current children cumulated CPU time (s) 3.04
Current children cumulated vsize (KiB) 100876

[startup+6.3015 s]
/proc/loadavg: 2.03 2.00 2.00 3/94 29706
/proc/meminfo: memFree=1497872/2055920 swapFree=4122904/4192956
[pid=29705] ppid=29703 vsize=100876 CPUtime=6.19
/proc/29705/stat : 29705 (casperzao) R 29703 29705 28795 0 -1 4194304 7685 0 0 0 613 6 0 0 25 0 1 0 1557494093 103297024 1120 996147200 134512640 135477443 4294956224 18446744073709551615 134673670 0 0 4096 0 0 0 0 17 1 0 0
/proc/29705/statm: 25219 1120 507 235 0 23920 0
Current children cumulated CPU time (s) 6.19
Current children cumulated vsize (KiB) 100876

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

[startup+9.50182 s]
/proc/loadavg: 2.03 2.00 2.00 3/94 29706
/proc/meminfo: memFree=1497872/2055920 swapFree=4122904/4192956
[pid=29705] ppid=29703 vsize=100876 CPUtime=9.34
/proc/29705/stat : 29705 (casperzao) R 29703 29705 28795 0 -1 4194304 7686 0 0 0 928 6 0 0 25 0 1 0 1557494093 103297024 1121 996147200 134512640 135477443 4294956224 18446744073709551615 135270277 0 0 4096 0 0 0 0 17 1 0 0
/proc/29705/statm: 25219 1121 507 235 0 23920 0
Current children cumulated CPU time (s) 9.34
Current children cumulated vsize (KiB) 100876

[startup+11.102 s]
/proc/loadavg: 2.03 2.00 2.00 3/94 29706
/proc/meminfo: memFree=1497808/2055920 swapFree=4122904/4192956
[pid=29705] ppid=29703 vsize=100876 CPUtime=10.92
/proc/29705/stat : 29705 (casperzao) R 29703 29705 28795 0 -1 4194304 7686 0 0 0 1086 6 0 0 25 0 1 0 1557494093 103297024 1121 996147200 134512640 135477443 4294956224 18446744073709551615 135268530 0 0 4096 0 0 0 0 17 1 0 0
/proc/29705/statm: 25219 1121 507 235 0 23920 0
Current children cumulated CPU time (s) 10.92
Current children cumulated vsize (KiB) 100876

[startup+11.9011 s]
/proc/loadavg: 2.03 2.00 2.00 3/94 29706
/proc/meminfo: memFree=1497808/2055920 swapFree=4122904/4192956
[pid=29705] ppid=29703 vsize=100876 CPUtime=11.71
/proc/29705/stat : 29705 (casperzao) R 29703 29705 28795 0 -1 4194304 7686 0 0 0 1165 6 0 0 25 0 1 0 1557494093 103297024 1121 996147200 134512640 135477443 4294956224 18446744073709551615 134673664 0 0 4096 0 0 0 0 17 1 0 0
/proc/29705/statm: 25219 1121 507 235 0 23920 0
Current children cumulated CPU time (s) 11.71
Current children cumulated vsize (KiB) 100876

[startup+12.1051 s]
/proc/loadavg: 2.02 2.00 2.00 3/94 29706
/proc/meminfo: memFree=1497808/2055920 swapFree=4122904/4192956
[pid=29705] ppid=29703 vsize=100876 CPUtime=11.91
/proc/29705/stat : 29705 (casperzao) R 29703 29705 28795 0 -1 4194304 7686 0 0 0 1185 6 0 0 25 0 1 0 1557494093 103297024 1121 996147200 134512640 135477443 4294956224 18446744073709551615 135269777 0 0 4096 0 0 0 0 17 1 0 0
/proc/29705/statm: 25219 1121 507 235 0 23920 0
Current children cumulated CPU time (s) 11.91
Current children cumulated vsize (KiB) 100876

[startup+12.2011 s]
/proc/loadavg: 2.02 2.00 2.00 3/94 29706
/proc/meminfo: memFree=1497808/2055920 swapFree=4122904/4192956
[pid=29705] ppid=29703 vsize=100876 CPUtime=12
/proc/29705/stat : 29705 (casperzao) R 29703 29705 28795 0 -1 4194304 7698 0 0 0 1194 6 0 0 25 0 1 0 1557494093 103297024 1133 996147200 134512640 135477443 4294956224 18446744073709551615 135270265 0 0 4096 0 0 0 0 17 1 0 0
/proc/29705/statm: 25219 1133 507 235 0 23920 0
Current children cumulated CPU time (s) 12
Current children cumulated vsize (KiB) 100876

Child status: 0
Real time (s): 12.2277
CPU time (s): 12.0382
CPU user time (s): 11.9752
CPU system time (s): 0.06299
CPU usage (%): 98.4503
Max. virtual memory (cumulated for all children) (KiB): 287636

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 11.9752
system time used= 0.06299
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 7700
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= 16
involuntary context switches= 417

runsolver used 0.015997 second user time and 0.039993 second system time

The end

Launcher Data (download as text)

Begin job on node12 at 2008-07-05 19:16:30
IDJOB=1093817
IDBENCH=58728
IDSOLVER=361
FILE ID=node12/1093817-1215278190
PBS_JOBID= 7882234
Free space on /tmp= 66340 MiB

SOLVER NAME= casper zao
BENCH NAME= CPAI08/csp/queens/normalized-queens-30.xml
COMMAND LINE= HOME/casperzao BENCHNAME RANDOMSEED 
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1093817-1215278190/watcher-1093817-1215278190 -o /tmp/evaluation-result-1093817-1215278190/solver-1093817-1215278190 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/casperzao HOME/instance-1093817-1215278190.xml 1181626995 

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= 8ee67e9ea63e7269661dbf55146a7059
RANDOM SEED=1181626995

node12.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		: 3000.236
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		: 3000.236
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:       1501112 kB
Buffers:         75492 kB
Cached:         260932 kB
SwapCached:      64504 kB
Active:         373820 kB
Inactive:       124136 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1501112 kB
SwapTotal:     4192956 kB
SwapFree:      4122904 kB
Dirty:            2956 kB
Writeback:           0 kB
Mapped:         177620 kB
Slab:            41532 kB
Committed_AS:  3730372 kB
PageTables:       2304 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= 66336 MiB
End job on node12 at 2008-07-05 19:16:43