Trace number 1081431

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 zaoUNSAT 56.7334 57.2868

DiagnosticValue
CHECKS45808700

General information on the benchmark

Namecsp/queensKnights/
normalized-queensKnights-20-5-mul.xml
MD5SUM7ece432996b72b47d9d3fdb19a06127f
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 benchmark1.3378
Satisfiable
(Un)Satisfiability was proved
Number of variables25
Number of constraints300
Maximum constraint arity2
Maximum domain size400
Number of constraints which are defined in extension0
Number of constraints which are defined in intension300
Global constraints used (with number of constraints)

Solver Data (download as text)

0.18/0.21	c [ This is CaSPERzao (C) mvc@di.fct.unl.pt ]
0.18/0.21	c Parsing = 1
0.18/0.21	c Building = 1
19.89/20.17	c [ NumberOfVariables = 25 ]
19.89/20.17	c [ NumberOfConstraints = 300 ]
19.89/20.17	c [ SizeOfSearchSpace(log2) = 129.658 ]
19.89/20.17	c SymmetrySearch = 1
19.89/20.18	c [ Found 10 symmetries ]
19.89/20.18	c InitialPropagation = 1
19.89/20.18	c [ SizeOfSearchSpace(log2) = 129.64 ]
19.89/20.18	c InitialSAC = 1
19.89/20.19	c [ SizeOfSearchSpace(log2) = 129.636 ]
19.89/20.19	c Search(SampleFF) : 
47.14/47.68	c [ Sampling domwdeg ]
47.14/47.68	c [ Sampling impacts ]
47.14/47.68	c [ stopped restarting at (1.13177,1.016) ]
56.65/57.28	c Search(SampleFF) = 0
56.65/57.28	s UNSATISFIABLE
56.65/57.28	d CHECKS 45808745
56.65/57.28	c [ TotalFails = 119839 ]
56.65/57.28	c [ NumberOfRestarts = 29 ]
56.65/57.28	c [ TotalTime = 53.434 secs ]

Verifier Data (download as text)

No possible verification on an UNSAT instance

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-1081431-1215216978/watcher-1081431-1215216978 -o /tmp/evaluation-result-1081431-1215216978/solver-1081431-1215216978 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/casperzao HOME/instance-1081431-1215216978.xml 787404944 

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: 2.13 2.03 2.01 4/74 16545
/proc/meminfo: memFree=1758208/2055920 swapFree=4179680/4192956
[pid=16545] ppid=16543 vsize=18572 CPUtime=0
/proc/16545/stat : 16545 (runsolver) R 16543 16545 13266 0 -1 4194368 15 0 0 0 0 0 0 0 20 0 1 0 2000670500 19017728 292 996147200 4194304 4296836 548682068480 18446744073709551615 234211568935 0 0 4096 24578 0 0 0 17 1 0 0
/proc/16545/statm: 4643 292 257 25 0 2626 0

[startup+0.0621269 s]
/proc/loadavg: 2.13 2.03 2.01 4/74 16545
/proc/meminfo: memFree=1758208/2055920 swapFree=4179680/4192956
[pid=16545] ppid=16543 vsize=286844 CPUtime=0.04
/proc/16545/stat : 16545 (casperzao) R 16543 16545 13266 0 -1 4194304 992 0 0 0 4 0 0 0 18 0 1 0 2000670500 293728256 573 996147200 134512640 135477443 4294956224 18446744073709551615 135268320 0 0 4096 0 0 0 0 17 1 0 0
/proc/16545/statm: 71711 573 462 235 0 70412 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 286844

[startup+0.10113 s]
/proc/loadavg: 2.13 2.03 2.01 4/74 16545
/proc/meminfo: memFree=1758208/2055920 swapFree=4179680/4192956
[pid=16545] ppid=16543 vsize=286844 CPUtime=0.08
/proc/16545/stat : 16545 (casperzao) R 16543 16545 13266 0 -1 4194304 1394 0 0 0 8 0 0 0 18 0 1 0 2000670500 293728256 597 996147200 134512640 135477443 4294956224 18446744073709551615 134899361 0 0 4096 0 0 0 0 17 1 0 0
/proc/16545/statm: 71711 597 462 235 0 70412 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 286844

[startup+0.301172 s]
/proc/loadavg: 2.13 2.03 2.01 4/74 16545
/proc/meminfo: memFree=1758208/2055920 swapFree=4179680/4192956
[pid=16545] ppid=16543 vsize=287240 CPUtime=0.28
/proc/16545/stat : 16545 (casperzao) R 16543 16545 13266 0 -1 4194304 3475 0 0 0 26 2 0 0 19 0 1 0 2000670500 294133760 702 996147200 134512640 135477443 4294956224 18446744073709551615 134919569 0 0 4096 0 0 0 0 17 1 0 0
/proc/16545/statm: 71810 702 462 235 0 70511 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 287240

[startup+0.701254 s]
/proc/loadavg: 2.13 2.03 2.01 4/74 16545
/proc/meminfo: memFree=1758208/2055920 swapFree=4179680/4192956
[pid=16545] ppid=16543 vsize=287504 CPUtime=0.68
/proc/16545/stat : 16545 (casperzao) R 16543 16545 13266 0 -1 4194304 5365 0 0 0 65 3 0 0 23 0 1 0 2000670500 294404096 829 996147200 134512640 135477443 4294956224 18446744073709551615 134593912 0 0 4096 0 0 0 0 17 1 0 0
/proc/16545/statm: 71876 829 463 235 0 70577 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 287504

[startup+1.50142 s]
/proc/loadavg: 2.13 2.03 2.01 3/75 16546
/proc/meminfo: memFree=1756536/2055920 swapFree=4179680/4192956
[pid=16545] ppid=16543 vsize=287504 CPUtime=1.47
/proc/16545/stat : 16545 (casperzao) R 16543 16545 13266 0 -1 4194304 5399 0 0 0 144 3 0 0 25 0 1 0 2000670500 294404096 863 996147200 134512640 135477443 4294956224 18446744073709551615 134583601 0 0 4096 0 0 0 0 17 1 0 0
/proc/16545/statm: 71876 863 463 235 0 70577 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 287504

[startup+3.10175 s]
/proc/loadavg: 2.12 2.03 2.01 3/75 16546
/proc/meminfo: memFree=1756280/2055920 swapFree=4179680/4192956
[pid=16545] ppid=16543 vsize=287504 CPUtime=3.06
/proc/16545/stat : 16545 (casperzao) R 16543 16545 13266 0 -1 4194304 5436 0 0 0 303 3 0 0 25 0 1 0 2000670500 294404096 900 996147200 134512640 135477443 4294956224 18446744073709551615 134584641 0 0 4096 0 0 0 0 17 1 0 0
/proc/16545/statm: 71876 900 463 235 0 70577 0
Current children cumulated CPU time (s) 3.06
Current children cumulated vsize (KiB) 287504

[startup+6.30141 s]
/proc/loadavg: 2.12 2.03 2.01 3/75 16546
/proc/meminfo: memFree=1756280/2055920 swapFree=4179680/4192956
[pid=16545] ppid=16543 vsize=287504 CPUtime=6.23
/proc/16545/stat : 16545 (casperzao) R 16543 16545 13266 0 -1 4194304 5558 0 0 0 620 3 0 0 25 0 1 0 2000670500 294404096 885 996147200 134512640 135477443 4294956224 18446744073709551615 135272443 0 0 4096 0 0 0 0 17 1 0 0
/proc/16545/statm: 71876 885 463 235 0 70577 0
Current children cumulated CPU time (s) 6.23
Current children cumulated vsize (KiB) 287504

[startup+12.7017 s]
/proc/loadavg: 2.10 2.03 2.01 3/75 16546
/proc/meminfo: memFree=1756024/2055920 swapFree=4179680/4192956
[pid=16545] ppid=16543 vsize=287504 CPUtime=12.57
/proc/16545/stat : 16545 (casperzao) R 16543 16545 13266 0 -1 4194304 5785 0 0 0 1254 3 0 0 25 0 1 0 2000670500 294404096 840 996147200 134512640 135477443 4294956224 18446744073709551615 134583610 0 0 4096 0 0 0 0 17 1 0 0
/proc/16545/statm: 71876 840 463 235 0 70577 0
Current children cumulated CPU time (s) 12.57
Current children cumulated vsize (KiB) 287504

[startup+25.5014 s]
/proc/loadavg: 2.08 2.03 2.01 3/75 16546
/proc/meminfo: memFree=1756088/2055920 swapFree=4179680/4192956
[pid=16545] ppid=16543 vsize=100392 CPUtime=25.25
/proc/16545/stat : 16545 (casperzao) R 16543 16545 13266 0 -1 4194304 6196 0 0 0 2521 4 0 0 25 0 1 0 2000670500 102801408 981 996147200 134512640 135477443 4294956224 18446744073709551615 135269562 0 0 4096 0 0 0 0 17 1 0 0
/proc/16545/statm: 25098 981 515 235 0 23799 0
Current children cumulated CPU time (s) 25.25
Current children cumulated vsize (KiB) 100392

[startup+51.1017 s]
/proc/loadavg: 2.05 2.02 2.00 3/75 16546
/proc/meminfo: memFree=1755640/2055920 swapFree=4179680/4192956
[pid=16545] ppid=16543 vsize=100392 CPUtime=50.6
/proc/16545/stat : 16545 (casperzao) R 16543 16545 13266 0 -1 4194304 6273 0 0 0 5056 4 0 0 25 0 1 0 2000670500 102801408 1058 996147200 134512640 135477443 4294956224 18446744073709551615 134942065 0 0 4096 0 0 0 0 17 1 0 0
/proc/16545/statm: 25098 1058 515 235 0 23799 0
Current children cumulated CPU time (s) 50.6
Current children cumulated vsize (KiB) 100392

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

[startup+54.3013 s]
/proc/loadavg: 2.05 2.02 2.00 3/75 16546
/proc/meminfo: memFree=1755704/2055920 swapFree=4179680/4192956
[pid=16545] ppid=16543 vsize=100392 CPUtime=53.77
/proc/16545/stat : 16545 (casperzao) R 16543 16545 13266 0 -1 4194304 6276 0 0 0 5373 4 0 0 25 0 1 0 2000670500 102801408 1061 996147200 134512640 135477443 4294956224 18446744073709551615 134911665 0 0 4096 0 0 0 0 17 1 0 0
/proc/16545/statm: 25098 1061 515 235 0 23799 0
Current children cumulated CPU time (s) 53.77
Current children cumulated vsize (KiB) 100392

[startup+55.9017 s]
/proc/loadavg: 2.05 2.02 2.00 3/75 16546
/proc/meminfo: memFree=1755704/2055920 swapFree=4179680/4192956
[pid=16545] ppid=16543 vsize=100392 CPUtime=55.36
/proc/16545/stat : 16545 (casperzao) R 16543 16545 13266 0 -1 4194304 6282 0 0 0 5532 4 0 0 25 0 1 0 2000670500 102801408 1067 996147200 134512640 135477443 4294956224 18446744073709551615 134673670 0 0 4096 0 0 0 0 17 1 0 0
/proc/16545/statm: 25098 1067 515 235 0 23799 0
Current children cumulated CPU time (s) 55.36
Current children cumulated vsize (KiB) 100392

[startup+56.7019 s]
/proc/loadavg: 2.05 2.02 2.00 3/75 16546
/proc/meminfo: memFree=1755704/2055920 swapFree=4179680/4192956
[pid=16545] ppid=16543 vsize=100392 CPUtime=56.15
/proc/16545/stat : 16545 (casperzao) R 16543 16545 13266 0 -1 4194304 6284 0 0 0 5611 4 0 0 25 0 1 0 2000670500 102801408 1069 996147200 134512640 135477443 4294956224 18446744073709551615 134585521 0 0 4096 0 0 0 0 17 1 0 0
/proc/16545/statm: 25098 1069 515 235 0 23799 0
Current children cumulated CPU time (s) 56.15
Current children cumulated vsize (KiB) 100392

[startup+57.1019 s]
/proc/loadavg: 2.05 2.02 2.00 3/75 16546
/proc/meminfo: memFree=1755704/2055920 swapFree=4179680/4192956
[pid=16545] ppid=16543 vsize=100392 CPUtime=56.55
/proc/16545/stat : 16545 (casperzao) R 16543 16545 13266 0 -1 4194304 6284 0 0 0 5651 4 0 0 25 0 1 0 2000670500 102801408 1069 996147200 134512640 135477443 4294956224 18446744073709551615 134919216 0 0 4096 0 0 0 0 17 1 0 0
/proc/16545/statm: 25098 1069 515 235 0 23799 0
Current children cumulated CPU time (s) 56.55
Current children cumulated vsize (KiB) 100392

[startup+57.207 s]
/proc/loadavg: 2.05 2.02 2.00 3/75 16546
/proc/meminfo: memFree=1755704/2055920 swapFree=4179680/4192956
[pid=16545] ppid=16543 vsize=100392 CPUtime=56.65
/proc/16545/stat : 16545 (casperzao) R 16543 16545 13266 0 -1 4194304 6284 0 0 0 5661 4 0 0 25 0 1 0 2000670500 102801408 1069 996147200 134512640 135477443 4294956224 18446744073709551615 134990293 0 0 4096 0 0 0 0 17 1 0 0
/proc/16545/statm: 25098 1069 515 235 0 23799 0
Current children cumulated CPU time (s) 56.65
Current children cumulated vsize (KiB) 100392

Child status: 0
Real time (s): 57.2868
CPU time (s): 56.7334
CPU user time (s): 56.6894
CPU system time (s): 0.043993
CPU usage (%): 99.034
Max. virtual memory (cumulated for all children) (KiB): 287504

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 56.6894
system time used= 0.043993
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6300
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= 1277

runsolver used 0.083987 second user time and 0.185971 second system time

The end

Launcher Data (download as text)

Begin job on node54 at 2008-07-05 02:16:19
IDJOB=1081431
IDBENCH=57103
IDSOLVER=361
FILE ID=node54/1081431-1215216978
PBS_JOBID= 7881700
Free space on /tmp= 66500 MiB

SOLVER NAME= casper zao
BENCH NAME= CPAI08/csp/queensKnights/normalized-queensKnights-20-5-mul.xml
COMMAND LINE= HOME/casperzao BENCHNAME RANDOMSEED 
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1081431-1215216978/watcher-1081431-1215216978 -o /tmp/evaluation-result-1081431-1215216978/solver-1081431-1215216978 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/casperzao HOME/instance-1081431-1215216978.xml 787404944 

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= 7ece432996b72b47d9d3fdb19a06127f
RANDOM SEED=787404944

node54.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		: 3000.279
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		: 3000.279
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:       1758688 kB
Buffers:         28848 kB
Cached:         169436 kB
SwapCached:       6328 kB
Active:         203536 kB
Inactive:        37816 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1758688 kB
SwapTotal:     4192956 kB
SwapFree:      4179680 kB
Dirty:            2996 kB
Writeback:           0 kB
Mapped:          51252 kB
Slab:            41000 kB
Committed_AS:  3926840 kB
PageTables:       1876 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66496 MiB
End job on node54 at 2008-07-05 02:17:16