Trace number 1081536

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 52.552 52.5767

DiagnosticValue
CHECKS325771

General information on the benchmark

Namecsp/knights/
normalized-knights-25-5.xml
MD5SUM7db82ba6d255c2ecb99a834eebcb3238
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 benchmark0.825873
Satisfiable
(Un)Satisfiability was proved
Number of variables5
Number of constraints10
Maximum constraint arity2
Maximum domain size625
Number of constraints which are defined in extension0
Number of constraints which are defined in intension10
Global constraints used (with number of constraints)

Solver Data (download as text)

0.00/0.00	c [ This is CaSPERzao (C) mvc@di.fct.unl.pt ]
0.00/0.00	c Parsing = 1
0.00/0.00	c Building = 1
51.27/51.32	c [ NumberOfVariables = 5 ]
51.27/51.32	c [ NumberOfConstraints = 10 ]
51.27/51.32	c [ SizeOfSearchSpace(log2) = 46.4386 ]
51.27/51.32	c SymmetrySearch = 1
51.27/51.32	c [ Found 10 symmetries ]
51.27/51.32	c InitialPropagation = 1
51.27/51.32	c [ SizeOfSearchSpace(log2) = 46.427 ]
51.27/51.32	c InitialSAC = 0
52.47/52.57	s UNSATISFIABLE
52.47/52.57	d CHECKS 325771
52.47/52.57	c [ TotalFails = 0 ]
52.47/52.57	c [ NumberOfRestarts = 0 ]
52.47/52.57	c [ TotalTime = 52.5589 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-1081536-1215217392/watcher-1081536-1215217392 -o /tmp/evaluation-result-1081536-1215217392/solver-1081536-1215217392 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/casperzao HOME/instance-1081536-1215217392.xml 1928536794 

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: 2.00 2.00 2.00 4/74 28413
/proc/meminfo: memFree=859328/2055920 swapFree=4176992/4192956
[pid=28413] ppid=28411 vsize=5352 CPUtime=0
/proc/28413/stat : 28413 (casperzao) R 28411 28413 27578 0 -1 4194304 215 0 0 0 0 0 0 0 18 0 1 0 644659365 5480448 190 996147200 134512640 135477443 4294956224 18446744073709551615 6757240 0 0 4096 0 0 0 0 17 0 0 0
/proc/28413/statm: 1338 190 156 235 0 27 0

[startup+0.06085 s]
/proc/loadavg: 2.00 2.00 2.00 4/74 28413
/proc/meminfo: memFree=859328/2055920 swapFree=4176992/4192956
[pid=28413] ppid=28411 vsize=286712 CPUtime=0.05
/proc/28413/stat : 28413 (casperzao) R 28411 28413 27578 0 -1 4194304 580 0 0 0 5 0 0 0 18 0 1 0 644659365 293593088 539 996147200 134512640 135477443 4294956224 18446744073709551615 134585531 0 0 4096 0 0 0 0 17 0 0 0
/proc/28413/statm: 71678 539 459 235 0 70379 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 286712

[startup+0.101854 s]
/proc/loadavg: 2.00 2.00 2.00 4/74 28413
/proc/meminfo: memFree=859328/2055920 swapFree=4176992/4192956
[pid=28413] ppid=28411 vsize=286712 CPUtime=0.09
/proc/28413/stat : 28413 (casperzao) R 28411 28413 27578 0 -1 4194304 587 0 0 0 9 0 0 0 18 0 1 0 644659365 293593088 546 996147200 134512640 135477443 4294956224 18446744073709551615 134585570 0 0 4096 0 0 0 0 17 0 0 0
/proc/28413/statm: 71678 546 459 235 0 70379 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 286712

[startup+0.301875 s]
/proc/loadavg: 2.00 2.00 2.00 4/74 28413
/proc/meminfo: memFree=859328/2055920 swapFree=4176992/4192956
[pid=28413] ppid=28411 vsize=286712 CPUtime=0.29
/proc/28413/stat : 28413 (casperzao) R 28411 28413 27578 0 -1 4194304 603 0 0 0 29 0 0 0 19 0 1 0 644659365 293593088 562 996147200 134512640 135477443 4294956224 18446744073709551615 135252918 0 0 4096 0 0 0 0 17 0 0 0
/proc/28413/statm: 71678 562 459 235 0 70379 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 286712

[startup+0.701915 s]
/proc/loadavg: 2.00 2.00 2.00 4/74 28413
/proc/meminfo: memFree=859328/2055920 swapFree=4176992/4192956
[pid=28413] ppid=28411 vsize=286712 CPUtime=0.69
/proc/28413/stat : 28413 (casperzao) R 28411 28413 27578 0 -1 4194304 624 0 0 0 69 0 0 0 23 0 1 0 644659365 293593088 583 996147200 134512640 135477443 4294956224 18446744073709551615 134942065 0 0 4096 0 0 0 0 17 0 0 0
/proc/28413/statm: 71678 583 459 235 0 70379 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 286712

[startup+1.502 s]
/proc/loadavg: 2.00 2.00 2.00 3/75 28414
/proc/meminfo: memFree=858680/2055920 swapFree=4176992/4192956
[pid=28413] ppid=28411 vsize=286712 CPUtime=1.49
/proc/28413/stat : 28413 (casperzao) R 28411 28413 27578 0 -1 4194304 647 0 0 0 149 0 0 0 25 0 1 0 644659365 293593088 606 996147200 134512640 135477443 4294956224 18446744073709551615 135269777 0 0 4096 0 0 0 0 17 0 0 0
/proc/28413/statm: 71678 606 459 235 0 70379 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 286712

[startup+3.10116 s]
/proc/loadavg: 2.00 2.00 2.00 3/75 28414
/proc/meminfo: memFree=858424/2055920 swapFree=4176992/4192956
[pid=28413] ppid=28411 vsize=286712 CPUtime=3.09
/proc/28413/stat : 28413 (casperzao) R 28411 28413 27578 0 -1 4194304 679 0 0 0 309 0 0 0 25 0 1 0 644659365 293593088 638 996147200 134512640 135477443 4294956224 18446744073709551615 135270866 0 0 4096 0 0 0 0 17 0 0 0
/proc/28413/statm: 71678 638 459 235 0 70379 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 286712

[startup+6.30149 s]
/proc/loadavg: 2.00 2.00 2.00 3/75 28414
/proc/meminfo: memFree=858168/2055920 swapFree=4176992/4192956
[pid=28413] ppid=28411 vsize=286712 CPUtime=6.29
/proc/28413/stat : 28413 (casperzao) R 28411 28413 27578 0 -1 4194304 719 0 0 0 629 0 0 0 25 0 1 0 644659365 293593088 678 996147200 134512640 135477443 4294956224 18446744073709551615 135270207 0 0 4096 0 0 0 0 17 0 0 0
/proc/28413/statm: 71678 678 459 235 0 70379 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 286712

[startup+12.7011 s]
/proc/loadavg: 2.00 2.00 2.00 3/75 28414
/proc/meminfo: memFree=858304/2055920 swapFree=4176992/4192956
[pid=28413] ppid=28411 vsize=286712 CPUtime=12.69
/proc/28413/stat : 28413 (casperzao) R 28411 28413 27578 0 -1 4194304 867 0 0 0 1269 0 0 0 25 0 1 0 644659365 293593088 624 996147200 134512640 135477443 4294956224 18446744073709551615 135270902 0 0 4096 0 0 0 0 17 0 0 0
/proc/28413/statm: 71678 624 459 235 0 70379 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 286712

[startup+25.5024 s]
/proc/loadavg: 2.00 2.00 2.00 3/75 28414
/proc/meminfo: memFree=858112/2055920 swapFree=4176992/4192956
[pid=28413] ppid=28411 vsize=286712 CPUtime=25.48
/proc/28413/stat : 28413 (casperzao) R 28411 28413 27578 0 -1 4194304 1105 0 0 0 2548 0 0 0 25 0 1 0 644659365 293593088 662 996147200 134512640 135477443 4294956224 18446744073709551615 134921304 0 0 4096 0 0 0 0 17 0 0 0
/proc/28413/statm: 71678 662 459 235 0 70379 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 286712

[startup+51.1021 s]
/proc/loadavg: 2.00 2.00 2.00 3/75 28414
/proc/meminfo: memFree=857984/2055920 swapFree=4176992/4192956
[pid=28413] ppid=28411 vsize=286712 CPUtime=51.07
/proc/28413/stat : 28413 (casperzao) R 28411 28413 27578 0 -1 4194304 1551 0 0 0 5106 1 0 0 25 0 1 0 644659365 293593088 705 996147200 134512640 135477443 4294956224 18446744073709551615 134585558 0 0 4096 0 0 0 0 17 0 0 0
/proc/28413/statm: 71678 705 459 235 0 70379 0
Current children cumulated CPU time (s) 51.07
Current children cumulated vsize (KiB) 286712

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

[startup+51.9011 s]
/proc/loadavg: 2.00 2.00 2.00 3/75 28414
/proc/meminfo: memFree=858496/2055920 swapFree=4176992/4192956
[pid=28413] ppid=28411 vsize=99200 CPUtime=51.87
/proc/28413/stat : 28413 (casperzao) R 28411 28413 27578 0 -1 4194304 1666 0 0 0 5186 1 0 0 25 0 1 0 644659365 101580800 621 996147200 134512640 135477443 4294956224 18446744073709551615 134583584 0 0 4096 0 0 0 0 17 0 0 0
/proc/28413/statm: 24800 621 507 235 0 23501 0
Current children cumulated CPU time (s) 51.87
Current children cumulated vsize (KiB) 99200

[startup+52.3012 s]
/proc/loadavg: 2.00 2.00 2.00 3/75 28414
/proc/meminfo: memFree=858496/2055920 swapFree=4176992/4192956
[pid=28413] ppid=28411 vsize=99200 CPUtime=52.27
/proc/28413/stat : 28413 (casperzao) R 28411 28413 27578 0 -1 4194304 1701 0 0 0 5226 1 0 0 25 0 1 0 644659365 101580800 656 996147200 134512640 135477443 4294956224 18446744073709551615 134919217 0 0 4096 0 0 0 0 17 0 0 0
/proc/28413/statm: 24800 656 507 235 0 23501 0
Current children cumulated CPU time (s) 52.27
Current children cumulated vsize (KiB) 99200

[startup+52.5012 s]
/proc/loadavg: 2.00 2.00 2.00 3/75 28414
/proc/meminfo: memFree=858496/2055920 swapFree=4176992/4192956
[pid=28413] ppid=28411 vsize=99200 CPUtime=52.47
/proc/28413/stat : 28413 (casperzao) R 28411 28413 27578 0 -1 4194304 1722 0 0 0 5246 1 0 0 25 0 1 0 644659365 101580800 677 996147200 134512640 135477443 4294956224 18446744073709551615 134940899 0 0 4096 0 0 0 0 17 0 0 0
/proc/28413/statm: 24800 677 507 235 0 23501 0
Current children cumulated CPU time (s) 52.47
Current children cumulated vsize (KiB) 99200

Child status: 0
Real time (s): 52.5767
CPU time (s): 52.552
CPU user time (s): 52.54
CPU system time (s): 0.011998
CPU usage (%): 99.9531
Max. virtual memory (cumulated for all children) (KiB): 286712

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 52.54
system time used= 0.011998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1736
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= 214

runsolver used 0.043993 second user time and 0.153976 second system time

The end

Launcher Data (download as text)

Begin job on node84 at 2008-07-05 02:23:12
IDJOB=1081536
IDBENCH=57109
IDSOLVER=361
FILE ID=node84/1081536-1215217392
PBS_JOBID= 7881788
Free space on /tmp= 66528 MiB

SOLVER NAME= casper zao
BENCH NAME= CPAI08/csp/knights/normalized-knights-25-5.xml
COMMAND LINE= HOME/casperzao BENCHNAME RANDOMSEED 
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1081536-1215217392/watcher-1081536-1215217392 -o /tmp/evaluation-result-1081536-1215217392/solver-1081536-1215217392 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/casperzao HOME/instance-1081536-1215217392.xml 1928536794 

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= 7db82ba6d255c2ecb99a834eebcb3238
RANDOM SEED=1928536794

node84.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		: 3000.231
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		: 3000.231
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:        859808 kB
Buffers:         11668 kB
Cached:        1119800 kB
SwapCached:      10116 kB
Active:          96700 kB
Inactive:      1049172 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        859808 kB
SwapTotal:     4192956 kB
SwapFree:      4176992 kB
Dirty:            2924 kB
Writeback:           0 kB
Mapped:          21784 kB
Slab:            35624 kB
Committed_AS:  1144420 kB
PageTables:       1800 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= 66528 MiB
End job on node84 at 2008-07-05 02:24:05