Trace number 1092886

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 zitoUNSAT 74.1167 74.1601

DiagnosticValue
CHECKS439312000

General information on the benchmark

Namecsp/langford4/
normalized-langford-4-11.xml
MD5SUM7a45128bc53de7416b9c9029d3cffa95
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 benchmark0.286955
Satisfiable
(Un)Satisfiability was proved
Number of variables44
Number of constraints979
Maximum constraint arity2
Maximum domain size44
Number of constraints which are defined in extension0
Number of constraints which are defined in intension979
Global constraints used (with number of constraints)

Solver Data (download as text)

0.00/0.01	c [ This is CaSPERzito (C) mvc@di.fct.unl.pt ]
0.00/0.01	c Parsing = 1
0.00/0.03	c Building = 1
0.00/0.03	c [ NumberOfVariables = 44 ]
0.00/0.03	c [ NumberOfConstraints = 979 ]
0.00/0.03	c [ SizeOfSearchSpace(log2) = 240.215 ]
0.00/0.03	c SymmetrySearch = 1
0.00/0.03	c InitialPropagation = 1
0.00/0.04	c [ SizeOfSearchSpace(log2) = 192.541 ]
0.00/0.04	c InitialSAC = 1
0.00/0.05	c [ SizeOfSearchSpace(log2) = 192.541 ]
0.00/0.05	c Search(SampleFF) : 
68.35/68.44	c [ Sampling domwdeg ]
68.35/68.44	c [ Sampling impacts ]
68.35/68.44	c [ SamplingScores: ]
68.35/68.44	c [ domwdeg+min = 0.1943 | domwdeg+rnd = 0.213938 ]
68.35/68.44	c [ impacts+min = 0.0703764 | impacts+rnd = 0.0967344 ]
68.35/68.44	c [ la+min = 0 | la+rnd = 0 ]
68.35/68.44	c [ domwdeg = 0.204119 | impacts = 0.0835554 | la = 0 ]
68.35/68.44	c [ min = 0.0882254 | rand = 0.0835554 ]
68.35/68.44	c [ restarting at (3.96356,0.236306) ]
74.05/74.15	c Search(SampleFF) = 0
74.05/74.15	s UNSATISFIABLE
74.05/74.15	d CHECKS 439312126
74.05/74.15	c [ TotalFails = 75935 ]
74.05/74.15	c [ NumberOfRestarts = 69 ]
74.05/74.15	c [ TotalTime = 74.1119 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-1092886-1215277898/watcher-1092886-1215277898 -o /tmp/evaluation-result-1092886-1215277898/solver-1092886-1215277898 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/casperzito HOME/instance-1092886-1215277898.xml 968388233 

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: 1.86 1.97 1.99 4/74 21578
/proc/meminfo: memFree=1705520/2055920 swapFree=4180444/4192956
[pid=21578] ppid=21576 vsize=2328 CPUtime=0
/proc/21578/stat : 21578 (casperzito) D 21576 21578 21491 0 -1 4194304 57 0 0 0 0 0 0 0 18 0 1 0 2006759350 2383872 41 996147200 134512640 135472138 4294956224 18446744073709551615 6853412 0 2147483391 4096 0 18446744072099781622 0 0 17 0 0 0
/proc/21578/statm: 582 41 31 234 0 14 0

[startup+0.076312 s]
/proc/loadavg: 1.86 1.97 1.99 4/74 21578
/proc/meminfo: memFree=1705520/2055920 swapFree=4180444/4192956
[pid=21578] ppid=21576 vsize=99520 CPUtime=0.06
/proc/21578/stat : 21578 (casperzito) R 21576 21578 21491 0 -1 4194304 870 0 0 0 6 0 0 0 18 0 1 0 2006759350 101908480 806 996147200 134512640 135472138 4294956224 18446744073709551615 135263219 0 0 4096 0 0 0 0 17 0 0 0
/proc/21578/statm: 24880 806 484 234 0 23582 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 99520

[startup+0.101318 s]
/proc/loadavg: 1.86 1.97 1.99 4/74 21578
/proc/meminfo: memFree=1705520/2055920 swapFree=4180444/4192956
[pid=21578] ppid=21576 vsize=99520 CPUtime=0.09
/proc/21578/stat : 21578 (casperzito) R 21576 21578 21491 0 -1 4194304 882 0 0 0 9 0 0 0 18 0 1 0 2006759350 101908480 818 996147200 134512640 135472138 4294956224 18446744073709551615 135202760 0 0 4096 0 0 0 0 17 0 0 0
/proc/21578/statm: 24880 818 484 234 0 23582 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 99520

[startup+0.301352 s]
/proc/loadavg: 1.86 1.97 1.99 4/74 21578
/proc/meminfo: memFree=1705520/2055920 swapFree=4180444/4192956
[pid=21578] ppid=21576 vsize=99520 CPUtime=0.29
/proc/21578/stat : 21578 (casperzito) R 21576 21578 21491 0 -1 4194304 889 0 0 0 29 0 0 0 19 0 1 0 2006759350 101908480 825 996147200 134512640 135472138 4294956224 18446744073709551615 135264871 0 0 4096 0 0 0 0 17 0 0 0
/proc/21578/statm: 24880 825 485 234 0 23582 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 99520

[startup+0.70142 s]
/proc/loadavg: 1.86 1.97 1.99 4/74 21578
/proc/meminfo: memFree=1705520/2055920 swapFree=4180444/4192956
[pid=21578] ppid=21576 vsize=99520 CPUtime=0.69
/proc/21578/stat : 21578 (casperzito) R 21576 21578 21491 0 -1 4194304 889 0 0 0 69 0 0 0 23 0 1 0 2006759350 101908480 825 996147200 134512640 135472138 4294956224 18446744073709551615 134928576 0 0 4096 0 0 0 0 17 0 0 0
/proc/21578/statm: 24880 825 485 234 0 23582 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 99520

[startup+1.50155 s]
/proc/loadavg: 1.86 1.97 1.99 3/75 21579
/proc/meminfo: memFree=1704168/2055920 swapFree=4180444/4192956
[pid=21578] ppid=21576 vsize=99520 CPUtime=1.49
/proc/21578/stat : 21578 (casperzito) R 21576 21578 21491 0 -1 4194304 889 0 0 0 149 0 0 0 25 0 1 0 2006759350 101908480 825 996147200 134512640 135472138 4294956224 18446744073709551615 135264971 0 0 4096 0 0 0 0 17 0 0 0
/proc/21578/statm: 24880 825 485 234 0 23582 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 99520

[startup+3.10283 s]
/proc/loadavg: 1.86 1.97 1.99 3/75 21579
/proc/meminfo: memFree=1703912/2055920 swapFree=4180444/4192956
[pid=21578] ppid=21576 vsize=99520 CPUtime=3.09
/proc/21578/stat : 21578 (casperzito) R 21576 21578 21491 0 -1 4194304 890 0 0 0 309 0 0 0 25 0 1 0 2006759350 101908480 826 996147200 134512640 135472138 4294956224 18446744073709551615 135264884 0 0 4096 0 0 0 0 17 0 0 0
/proc/21578/statm: 24880 826 485 234 0 23582 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 99520

[startup+6.30137 s]
/proc/loadavg: 1.87 1.97 1.99 3/75 21579
/proc/meminfo: memFree=1703912/2055920 swapFree=4180444/4192956
[pid=21578] ppid=21576 vsize=99520 CPUtime=6.28
/proc/21578/stat : 21578 (casperzito) R 21576 21578 21491 0 -1 4194304 896 0 0 0 628 0 0 0 25 0 1 0 2006759350 101908480 832 996147200 134512640 135472138 4294956224 18446744073709551615 135263168 0 0 4096 0 0 0 0 17 0 0 0
/proc/21578/statm: 24880 832 485 234 0 23582 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 99520

[startup+12.7015 s]
/proc/loadavg: 1.88 1.97 1.99 3/75 21579
/proc/meminfo: memFree=1703608/2055920 swapFree=4180444/4192956
[pid=21578] ppid=21576 vsize=99520 CPUtime=12.68
/proc/21578/stat : 21578 (casperzito) R 21576 21578 21491 0 -1 4194304 911 0 0 0 1268 0 0 0 25 0 1 0 2006759350 101908480 847 996147200 134512640 135472138 4294956224 18446744073709551615 134928637 0 0 4096 0 0 0 0 17 0 0 0
/proc/21578/statm: 24880 847 485 234 0 23582 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 99520

[startup+25.5016 s]
/proc/loadavg: 1.91 1.97 1.99 3/75 21579
/proc/meminfo: memFree=1703672/2055920 swapFree=4180444/4192956
[pid=21578] ppid=21576 vsize=99520 CPUtime=25.47
/proc/21578/stat : 21578 (casperzito) R 21576 21578 21491 0 -1 4194304 914 0 0 0 2547 0 0 0 25 0 1 0 2006759350 101908480 850 996147200 134512640 135472138 4294956224 18446744073709551615 135265555 0 0 4096 0 0 0 0 17 0 0 0
/proc/21578/statm: 24880 850 485 234 0 23582 0
Current children cumulated CPU time (s) 25.47
Current children cumulated vsize (KiB) 99520

[startup+51.102 s]
/proc/loadavg: 1.94 1.97 1.99 3/75 21579
/proc/meminfo: memFree=1703672/2055920 swapFree=4180444/4192956
[pid=21578] ppid=21576 vsize=99520 CPUtime=51.06
/proc/21578/stat : 21578 (casperzito) R 21576 21578 21491 0 -1 4194304 929 0 0 0 5106 0 0 0 25 0 1 0 2006759350 101908480 865 996147200 134512640 135472138 4294956224 18446744073709551615 134928582 0 0 4096 0 0 0 0 17 0 0 0
/proc/21578/statm: 24880 865 487 234 0 23582 0
Current children cumulated CPU time (s) 51.06
Current children cumulated vsize (KiB) 99520

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

[startup+63.9012 s]
/proc/loadavg: 1.95 1.97 1.99 3/75 21579
/proc/meminfo: memFree=1703672/2055920 swapFree=4180444/4192956
[pid=21578] ppid=21576 vsize=99520 CPUtime=63.85
/proc/21578/stat : 21578 (casperzito) R 21576 21578 21491 0 -1 4194304 929 0 0 0 6385 0 0 0 25 0 1 0 2006759350 101908480 865 996147200 134512640 135472138 4294956224 18446744073709551615 135264400 0 0 4096 0 0 0 0 17 0 0 0
/proc/21578/statm: 24880 865 487 234 0 23582 0
Current children cumulated CPU time (s) 63.85
Current children cumulated vsize (KiB) 99520

[startup+70.3012 s]
/proc/loadavg: 1.95 1.97 1.99 3/75 21579
/proc/meminfo: memFree=1703672/2055920 swapFree=4180444/4192956
[pid=21578] ppid=21576 vsize=99520 CPUtime=70.25
/proc/21578/stat : 21578 (casperzito) R 21576 21578 21491 0 -1 4194304 930 0 0 0 7025 0 0 0 25 0 1 0 2006759350 101908480 866 996147200 134512640 135472138 4294956224 18446744073709551615 135264879 0 0 4096 0 0 0 0 17 0 0 0
/proc/21578/statm: 24880 866 488 234 0 23582 0
Current children cumulated CPU time (s) 70.25
Current children cumulated vsize (KiB) 99520

[startup+71.9015 s]
/proc/loadavg: 1.95 1.97 1.99 3/75 21579
/proc/meminfo: memFree=1703672/2055920 swapFree=4180444/4192956
[pid=21578] ppid=21576 vsize=99520 CPUtime=71.85
/proc/21578/stat : 21578 (casperzito) R 21576 21578 21491 0 -1 4194304 930 0 0 0 7185 0 0 0 25 0 1 0 2006759350 101908480 866 996147200 134512640 135472138 4294956224 18446744073709551615 135262958 0 0 4096 0 0 0 0 17 0 0 0
/proc/21578/statm: 24880 866 488 234 0 23582 0
Current children cumulated CPU time (s) 71.85
Current children cumulated vsize (KiB) 99520

[startup+73.5018 s]
/proc/loadavg: 1.95 1.97 1.99 3/75 21579
/proc/meminfo: memFree=1703672/2055920 swapFree=4180444/4192956
[pid=21578] ppid=21576 vsize=99520 CPUtime=73.45
/proc/21578/stat : 21578 (casperzito) R 21576 21578 21491 0 -1 4194304 930 0 0 0 7345 0 0 0 25 0 1 0 2006759350 101908480 866 996147200 134512640 135472138 4294956224 18446744073709551615 135264879 0 0 4096 0 0 0 0 17 0 0 0
/proc/21578/statm: 24880 866 488 234 0 23582 0
Current children cumulated CPU time (s) 73.45
Current children cumulated vsize (KiB) 99520

[startup+73.9019 s]
/proc/loadavg: 1.96 1.97 1.99 3/75 21579
/proc/meminfo: memFree=1703672/2055920 swapFree=4180444/4192956
[pid=21578] ppid=21576 vsize=99520 CPUtime=73.85
/proc/21578/stat : 21578 (casperzito) R 21576 21578 21491 0 -1 4194304 930 0 0 0 7385 0 0 0 25 0 1 0 2006759350 101908480 866 996147200 134512640 135472138 4294956224 18446744073709551615 135264950 0 0 4096 0 0 0 0 17 0 0 0
/proc/21578/statm: 24880 866 488 234 0 23582 0
Current children cumulated CPU time (s) 73.85
Current children cumulated vsize (KiB) 99520

[startup+74.1019 s]
/proc/loadavg: 1.96 1.97 1.99 3/75 21579
/proc/meminfo: memFree=1703672/2055920 swapFree=4180444/4192956
[pid=21578] ppid=21576 vsize=99520 CPUtime=74.05
/proc/21578/stat : 21578 (casperzito) R 21576 21578 21491 0 -1 4194304 930 0 0 0 7405 0 0 0 25 0 1 0 2006759350 101908480 866 996147200 134512640 135472138 4294956224 18446744073709551615 135262721 0 0 4096 0 0 0 0 17 0 0 0
/proc/21578/statm: 24880 866 488 234 0 23582 0
Current children cumulated CPU time (s) 74.05
Current children cumulated vsize (KiB) 99520

Child status: 0
Real time (s): 74.1601
CPU time (s): 74.1167
CPU user time (s): 74.1107
CPU system time (s): 0.005999
CPU usage (%): 99.9416
Max. virtual memory (cumulated for all children) (KiB): 99520

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 74.1107
system time used= 0.005999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 933
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= 285

runsolver used 0.12898 second user time and 0.215967 second system time

The end

Launcher Data (download as text)

Begin job on node68 at 2008-07-05 19:11:38
IDJOB=1092886
IDBENCH=58665
IDSOLVER=362
FILE ID=node68/1092886-1215277898
PBS_JOBID= 7882296
Free space on /tmp= 66524 MiB

SOLVER NAME= casper zito
BENCH NAME= CPAI08/csp/langford4/normalized-langford-4-11.xml
COMMAND LINE= HOME/casperzito BENCHNAME RANDOMSEED 
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1092886-1215277898/watcher-1092886-1215277898 -o /tmp/evaluation-result-1092886-1215277898/solver-1092886-1215277898 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/casperzito HOME/instance-1092886-1215277898.xml 968388233 

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= 7a45128bc53de7416b9c9029d3cffa95
RANDOM SEED=968388233

node68.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		: 3000.261
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		: 3000.261
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:       1706000 kB
Buffers:         47324 kB
Cached:         224432 kB
SwapCached:       6772 kB
Active:         170760 kB
Inactive:       126252 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1706000 kB
SwapTotal:     4192956 kB
SwapFree:      4180444 kB
Dirty:            3264 kB
Writeback:           0 kB
Mapped:          31156 kB
Slab:            38220 kB
Committed_AS:  4336004 kB
PageTables:       1788 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= 66520 MiB
End job on node68 at 2008-07-05 19:12:52