Trace number 1081516

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 0.365943 0.367616

DiagnosticValue
CHECKS179528

General information on the benchmark

Namecsp/knights/
normalized-knights-12-9.xml
MD5SUM88a8a34b19289d35e9ed9938496c3815
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 benchmark0.183971
Satisfiable
(Un)Satisfiability was proved
Number of variables9
Number of constraints36
Maximum constraint arity2
Maximum domain size144
Number of constraints which are defined in extension0
Number of constraints which are defined in intension36
Global constraints used (with number of constraints)

Solver Data (download as text)

0.00/0.00	c [ This is CaSPERzito (C) mvc@di.fct.unl.pt ]
0.00/0.00	c Parsing = 1
0.00/0.00	c Building = 1
0.00/0.00	c [ NumberOfVariables = 9 ]
0.00/0.00	c [ NumberOfConstraints = 36 ]
0.00/0.00	c [ SizeOfSearchSpace(log2) = 64.5293 ]
0.00/0.00	c SymmetrySearch = 1
0.00/0.01	c [ Found 18 symmetries ]
0.00/0.01	c InitialPropagation = 1
0.00/0.01	c [ SizeOfSearchSpace(log2) = 64.4388 ]
0.00/0.01	c InitialSAC = 1
0.00/0.01	c [ SizeOfSearchSpace(log2) = 64.4388 ]
0.00/0.01	c Search(SampleFF) : 
0.29/0.36	c [ Sampling domwdeg ]
0.29/0.36	c Search(SampleFF) = 0
0.29/0.36	s UNSATISFIABLE
0.29/0.36	d CHECKS 179528
0.29/0.36	c [ TotalFails = 2215 ]
0.29/0.36	c [ NumberOfRestarts = 2 ]
0.29/0.36	c [ TotalTime = 0.3589 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-1081516-1215217352/watcher-1081516-1215217352 -o /tmp/evaluation-result-1081516-1215217352/solver-1081516-1215217352 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/casperzito HOME/instance-1081516-1215217352.xml 744943377 

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: 1.93 2.03 2.01 4/74 10431
/proc/meminfo: memFree=1808176/2055920 swapFree=4180580/4192956
[pid=10431] ppid=10429 vsize=5348 CPUtime=0
/proc/10431/stat : 10431 (casperzito) R 10429 10431 9529 0 -1 4194304 216 0 0 0 0 0 0 0 18 0 1 0 644665617 5476352 191 996147200 134512640 135472138 4294956224 18446744073709551615 4705144 0 0 4096 0 0 0 0 17 0 0 0
/proc/10431/statm: 1337 191 157 234 0 27 0

[startup+0.0449321 s]
/proc/loadavg: 1.93 2.03 2.01 4/74 10431
/proc/meminfo: memFree=1808176/2055920 swapFree=4180580/4192956
[pid=10431] ppid=10429 vsize=99196 CPUtime=0.04
/proc/10431/stat : 10431 (casperzito) R 10429 10431 9529 0 -1 4194304 635 0 0 0 4 0 0 0 18 0 1 0 644665617 101576704 595 996147200 134512640 135472138 4294956224 18446744073709551615 134672483 0 0 4096 0 0 0 0 17 0 0 0
/proc/10431/statm: 24799 595 499 234 0 23501 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 99196

[startup+0.101937 s]
/proc/loadavg: 1.93 2.03 2.01 4/74 10431
/proc/meminfo: memFree=1808176/2055920 swapFree=4180580/4192956
[pid=10431] ppid=10429 vsize=99196 CPUtime=0.09
/proc/10431/stat : 10431 (casperzito) R 10429 10431 9529 0 -1 4194304 646 0 0 0 9 0 0 0 18 0 1 0 644665617 101576704 606 996147200 134512640 135472138 4294956224 18446744073709551615 135264940 0 0 4096 0 0 0 0 17 0 0 0
/proc/10431/statm: 24799 606 499 234 0 23501 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 99196

[startup+0.301959 s]
/proc/loadavg: 1.93 2.03 2.01 4/74 10431
/proc/meminfo: memFree=1808176/2055920 swapFree=4180580/4192956
[pid=10431] ppid=10429 vsize=99196 CPUtime=0.29
/proc/10431/stat : 10431 (casperzito) R 10429 10431 9529 0 -1 4194304 653 0 0 0 29 0 0 0 19 0 1 0 644665617 101576704 613 996147200 134512640 135472138 4294956224 18446744073709551615 134934883 0 0 4096 0 0 0 0 17 0 0 0
/proc/10431/statm: 24799 613 500 234 0 23501 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 99196

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

Child status: 0
Real time (s): 0.367616
CPU time (s): 0.365943
CPU user time (s): 0.362944
CPU system time (s): 0.002999
CPU usage (%): 99.5449
Max. virtual memory (cumulated for all children) (KiB): 99196

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.362944
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 659
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= 13
involuntary context switches= 7

runsolver used 0.001999 second user time and 0.007998 second system time

The end

Launcher Data (download as text)

Begin job on node79 at 2008-07-05 02:22:32
IDJOB=1081516
IDBENCH=57107
IDSOLVER=362
FILE ID=node79/1081516-1215217352
PBS_JOBID= 7881808
Free space on /tmp= 66492 MiB

SOLVER NAME= casper zito
BENCH NAME= CPAI08/csp/knights/normalized-knights-12-9.xml
COMMAND LINE= HOME/casperzito BENCHNAME RANDOMSEED 
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1081516-1215217352/watcher-1081516-1215217352 -o /tmp/evaluation-result-1081516-1215217352/solver-1081516-1215217352 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/casperzito HOME/instance-1081516-1215217352.xml 744943377 

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= 88a8a34b19289d35e9ed9938496c3815
RANDOM SEED=744943377

node79.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		: 3000.218
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		: 3000.218
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1808656 kB
Buffers:         30428 kB
Cached:         153260 kB
SwapCached:       6916 kB
Active:         134856 kB
Inactive:        65652 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1808656 kB
SwapTotal:     4192956 kB
SwapFree:      4180580 kB
Dirty:            3300 kB
Writeback:           0 kB
Mapped:          23240 kB
Slab:            32196 kB
Committed_AS:  1140680 kB
PageTables:       1740 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= 66492 MiB
End job on node79 at 2008-07-05 02:22:33