Trace number 1105931

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
Minion/Tailor 2008-07-04UNSAT 0.632903 0.657974

General information on the benchmark

Namecsp/langford4/
normalized-langford-4-8.xml
MD5SUMe02ab284be8165bbf8650c2ca610d92a
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 benchmark0.028995
Satisfiable
(Un)Satisfiability was proved
Number of variables32
Number of constraints520
Maximum constraint arity2
Maximum domain size32
Number of constraints which are defined in extension0
Number of constraints which are defined in intension520
Global constraints used (with number of constraints)

Solver Data (download as text)

0.59/0.62	c Finished tailoring XCSP instance to Minion. Starting solving
0.59/0.65	s UNSATISFIABLE

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-1105931-1215277511/watcher-1105931-1215277511 -o /tmp/evaluation-result-1105931-1215277511/solver-1105931-1215277511 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/solve.sh HOME/instance-1105931-1215277511.xml 

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 1.99 4/74 11285
/proc/meminfo: memFree=1706456/2055924 swapFree=4177320/4192956
[pid=11285] ppid=11283 vsize=5356 CPUtime=0
/proc/11285/stat : 11285 (solve.sh) R 11283 11285 7426 0 -1 4194304 276 0 0 0 0 0 0 0 21 0 1 0 683480731 5484544 234 996147200 4194304 4889804 548682068832 18446744073709551615 230266667915 0 0 4100 65536 0 0 0 17 1 0 0
/proc/11285/statm: 1339 234 194 169 0 50 0
[pid=11286] ppid=11285 vsize=10888 CPUtime=0
/proc/11286/stat : 11286 (java) S 11285 11285 7426 0 -1 0 761 0 0 0 0 0 0 0 18 0 2 0 683480731 11149312 524 996147200 134512640 134550740 4294956032 18446744073709551615 4294960144 0 0 0 16784584 18446744073709551615 0 0 17 0 0 0
/proc/11286/statm: 2722 524 238 9 0 1242 0
[pid=11286/tid=11287] ppid=11285 vsize=10888 CPUtime=0
/proc/11286/task/11287/stat : 11287 (java) R 11285 11285 7426 0 -1 64 53 0 0 0 0 0 0 0 20 0 2 0 683480732 11149312 524 996147200 134512640 134550740 4294956032 18446744073709551615 7934756 0 2147483391 0 16784584 0 0 0 -1 0 0 0

[startup+0.054669 s]
/proc/loadavg: 2.00 2.00 1.99 4/74 11285
/proc/meminfo: memFree=1706456/2055924 swapFree=4177320/4192956
[pid=11285] ppid=11283 vsize=5356 CPUtime=0
/proc/11285/stat : 11285 (solve.sh) S 11283 11285 7426 0 -1 4194304 285 0 0 0 0 0 0 0 21 0 1 0 683480731 5484544 235 996147200 4194304 4889804 548682068832 18446744073709551615 230266823492 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/11285/statm: 1339 235 195 169 0 50 0
[pid=11286] ppid=11285 vsize=862228 CPUtime=0.04
/proc/11286/stat : 11286 (java) S 11285 11285 7426 0 -1 0 2503 0 1 0 3 1 0 0 18 0 9 0 683480731 882921472 2026 996147200 134512640 134550740 4294956032 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/11286/statm: 215557 2026 1117 9 0 210514 0
[pid=11286/tid=11287] ppid=11285 vsize=862228 CPUtime=0.02
/proc/11286/task/11287/stat : 11287 (java) R 11285 11285 7426 0 -1 64 1588 0 1 0 2 0 0 0 25 0 9 0 683480732 882921472 2026 996147200 134512640 134550740 4294956032 18446744073709551615 4294960144 0 2147483391 0 16800975 0 0 0 -1 0 0 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 867584

[startup+0.102677 s]
/proc/loadavg: 2.00 2.00 1.99 4/74 11285
/proc/meminfo: memFree=1706456/2055924 swapFree=4177320/4192956
[pid=11285] ppid=11283 vsize=5356 CPUtime=0
/proc/11285/stat : 11285 (solve.sh) S 11283 11285 7426 0 -1 4194304 285 0 0 0 0 0 0 0 21 0 1 0 683480731 5484544 235 996147200 4194304 4889804 548682068832 18446744073709551615 230266823492 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/11285/statm: 1339 235 195 169 0 50 0
[pid=11286] ppid=11285 vsize=864220 CPUtime=0.09
/proc/11286/stat : 11286 (java) S 11285 11285 7426 0 -1 0 3588 0 1 0 7 2 0 0 18 0 9 0 683480731 884961280 3031 996147200 134512640 134550740 4294956032 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/11286/statm: 216055 3031 1747 9 0 210617 0
[pid=11286/tid=11287] ppid=11285 vsize=864220 CPUtime=0.07
/proc/11286/task/11287/stat : 11287 (java) R 11285 11285 7426 0 -1 64 2637 0 1 0 6 1 0 0 25 0 9 0 683480732 884961280 3031 996147200 134512640 134550740 4294956032 18446744073709551615 103946563 0 4 0 16800975 0 0 0 -1 0 0 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 869576

[startup+0.302714 s]
/proc/loadavg: 2.00 2.00 1.99 4/74 11285
/proc/meminfo: memFree=1706456/2055924 swapFree=4177320/4192956
[pid=11285] ppid=11283 vsize=5356 CPUtime=0
/proc/11285/stat : 11285 (solve.sh) S 11283 11285 7426 0 -1 4194304 285 0 0 0 0 0 0 0 21 0 1 0 683480731 5484544 235 996147200 4194304 4889804 548682068832 18446744073709551615 230266823492 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/11285/statm: 1339 235 195 169 0 50 0
[pid=11286] ppid=11285 vsize=864956 CPUtime=0.28
/proc/11286/stat : 11286 (java) S 11285 11285 7426 0 -1 0 4356 0 1 0 26 2 0 0 18 0 9 0 683480731 885714944 3784 996147200 134512640 134550740 4294956032 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/11286/statm: 216239 3784 1828 9 0 210801 0
[pid=11286/tid=11287] ppid=11285 vsize=864956 CPUtime=0.18
/proc/11286/task/11287/stat : 11287 (java) R 11285 11285 7426 0 -1 64 3166 0 1 0 16 2 0 0 25 0 9 0 683480732 885714944 3784 996147200 134512640 134550740 4294956032 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 870312

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

[startup+0.502756 s]
/proc/loadavg: 2.00 2.00 1.99 4/74 11285
/proc/meminfo: memFree=1706456/2055924 swapFree=4177320/4192956
[pid=11285] ppid=11283 vsize=5356 CPUtime=0
/proc/11285/stat : 11285 (solve.sh) S 11283 11285 7426 0 -1 4194304 285 0 0 0 0 0 0 0 21 0 1 0 683480731 5484544 235 996147200 4194304 4889804 548682068832 18446744073709551615 230266823492 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/11285/statm: 1339 235 195 169 0 50 0
[pid=11286] ppid=11285 vsize=868860 CPUtime=0.49
/proc/11286/stat : 11286 (java) S 11285 11285 7426 0 -1 0 7386 0 1 0 44 5 0 0 18 0 9 0 683480731 889712640 6808 996147200 134512640 134550740 4294956032 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/11286/statm: 217215 6808 1859 9 0 211777 0
[pid=11286/tid=11287] ppid=11285 vsize=868860 CPUtime=0.27
/proc/11286/task/11287/stat : 11287 (java) R 11285 11285 7426 0 -1 64 4933 0 1 0 24 3 0 0 25 0 9 0 683480732 889712640 6808 996147200 134512640 134550740 4294956032 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 874216

[startup+0.60277 s]
/proc/loadavg: 2.00 2.00 1.99 4/74 11285
/proc/meminfo: memFree=1706456/2055924 swapFree=4177320/4192956
[pid=11285] ppid=11283 vsize=5356 CPUtime=0
/proc/11285/stat : 11285 (solve.sh) S 11283 11285 7426 0 -1 4194304 285 0 0 0 0 0 0 0 21 0 1 0 683480731 5484544 235 996147200 4194304 4889804 548682068832 18446744073709551615 230266823492 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/11285/statm: 1339 235 195 169 0 50 0
[pid=11286] ppid=11285 vsize=868740 CPUtime=0.59
/proc/11286/stat : 11286 (java) S 11285 11285 7426 0 -1 0 7899 0 1 0 54 5 0 0 18 0 9 0 683480731 889589760 7222 996147200 134512640 134550740 4294956032 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/11286/statm: 217185 7222 1877 9 0 211747 0
[pid=11286/tid=11287] ppid=11285 vsize=868740 CPUtime=0.36
/proc/11286/task/11287/stat : 11287 (java) R 11285 11285 7426 0 -1 64 5130 0 1 0 33 3 0 0 25 0 9 0 683480732 889589760 7222 996147200 134512640 134550740 4294956032 18446744073709551615 102538929 0 4 0 16800975 0 0 0 -1 0 0 0
Current children cumulated CPU time (s) 0.59
Current children cumulated vsize (KiB) 874096

Child status: 0
Real time (s): 0.657974
CPU time (s): 0.632903
CPU user time (s): 0.570913
CPU system time (s): 0.06199
CPU usage (%): 96.1897
Max. virtual memory (cumulated for all children) (KiB): 874216

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.570913
system time used= 0.06199
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8781
page faults= 1
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 682
involuntary context switches= 633

runsolver used 0.005999 second user time and 0.006998 second system time

The end

Launcher Data (download as text)

Begin job on node83 at 2008-07-05 19:05:11
IDJOB=1105931
IDBENCH=58657
IDSOLVER=369
FILE ID=node83/1105931-1215277511
PBS_JOBID= 7882111
Free space on /tmp= 66496 MiB

SOLVER NAME= Minion/Tailor 2008-07-04
BENCH NAME= CPAI08/csp/langford4/normalized-langford-4-8.xml
COMMAND LINE= DIR/solve.sh BENCHNAME
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1105931-1215277511/watcher-1105931-1215277511 -o /tmp/evaluation-result-1105931-1215277511/solver-1105931-1215277511 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/solve.sh HOME/instance-1105931-1215277511.xml

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= e02ab284be8165bbf8650c2ca610d92a
RANDOM SEED=2085223514

node83.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		: 3000.263
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		: 3000.263
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:      2055924 kB
MemFree:       1706872 kB
Buffers:         44240 kB
Cached:         239948 kB
SwapCached:       9708 kB
Active:         198720 kB
Inactive:       103652 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055924 kB
LowFree:       1706872 kB
SwapTotal:     4192956 kB
SwapFree:      4177320 kB
Dirty:           29952 kB
Writeback:           0 kB
Mapped:          24176 kB
Slab:            32016 kB
Committed_AS:  1231628 kB
PageTables:       1748 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= 66468 MiB
End job on node83 at 2008-07-05 19:05:12