Trace number 1082185

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
Mistral-option 1.314UNSAT 13.007 13.1331

DiagnosticValue
ASSIGNMENTS105689
CHECKS22446300

General information on the benchmark

Namecsp/langford3/
normalized-langford-3-12.xml
MD5SUMdee4599863daae352af5f2661ac2dee6
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 benchmark3.9454
Satisfiable
(Un)Satisfiability was proved
Number of variables36
Number of constraints654
Maximum constraint arity2
Maximum domain size36
Number of constraints which are defined in extension0
Number of constraints which are defined in intension654
Global constraints used (with number of constraints)

Solver Data (download as text)

0.07/0.12	c mistral-option version 1.313
12.96/13.13	s UNSATISFIABLE
12.96/13.13	d CHECKS 22446339
12.96/13.13	d ASSIGNMENTS 105689

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-1082185-1215221191/watcher-1082185-1215221191 -o /tmp/evaluation-result-1082185-1215221191/solver-1082185-1215221191 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/xsolve HOME/instance-1082185-1215221191.xml -heu dyn -sac 3 -ds 2 

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: 1.98 2.00 1.99 4/81 10238
/proc/meminfo: memFree=1574880/2055920 swapFree=4180452/4192956
[pid=10238] ppid=10236 vsize=820 CPUtime=0
/proc/10238/stat : 10238 (xsolve) R 10236 10238 9727 0 -1 4194304 39 0 0 0 0 0 0 0 19 0 1 0 2001092922 839680 25 996147200 134512640 135239763 4294956192 18446744073709551615 4129572 0 2147483391 4096 0 0 0 0 17 1 0 0
/proc/10238/statm: 205 25 19 177 0 3 0

[startup+0.104216 s]
/proc/loadavg: 1.98 2.00 1.99 4/81 10238
/proc/meminfo: memFree=1574880/2055920 swapFree=4180452/4192956
[pid=10238] ppid=10236 vsize=4992 CPUtime=0.07
/proc/10238/stat : 10238 (xsolve) R 10236 10238 9727 0 -1 4194304 606 0 0 0 7 0 0 0 19 0 1 0 2001092922 5111808 572 996147200 134512640 135239763 4294956192 18446744073709551615 134821606 0 0 4096 0 0 0 0 17 1 0 0
/proc/10238/statm: 1248 572 414 177 0 151 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 4992

[startup+0.20122 s]
/proc/loadavg: 1.98 2.00 1.99 4/81 10238
/proc/meminfo: memFree=1574880/2055920 swapFree=4180452/4192956
[pid=10238] ppid=10236 vsize=4992 CPUtime=0.17
/proc/10238/stat : 10238 (xsolve) R 10236 10238 9727 0 -1 4194304 609 0 0 0 17 0 0 0 20 0 1 0 2001092922 5111808 575 996147200 134512640 135239763 4294956192 18446744073709551615 134841780 0 0 4096 0 0 0 0 17 1 0 0
/proc/10238/statm: 1248 575 416 177 0 151 0
Current children cumulated CPU time (s) 0.17
Current children cumulated vsize (KiB) 4992

[startup+0.301227 s]
/proc/loadavg: 1.98 2.00 1.99 4/81 10238
/proc/meminfo: memFree=1574880/2055920 swapFree=4180452/4192956
[pid=10238] ppid=10236 vsize=4992 CPUtime=0.27
/proc/10238/stat : 10238 (xsolve) R 10236 10238 9727 0 -1 4194304 609 0 0 0 27 0 0 0 21 0 1 0 2001092922 5111808 575 996147200 134512640 135239763 4294956192 18446744073709551615 135015272 0 0 4096 0 0 0 0 17 1 0 0
/proc/10238/statm: 1248 575 416 177 0 151 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 4992

[startup+0.701251 s]
/proc/loadavg: 1.98 2.00 1.99 4/81 10238
/proc/meminfo: memFree=1574880/2055920 swapFree=4180452/4192956
[pid=10238] ppid=10236 vsize=4992 CPUtime=0.67
/proc/10238/stat : 10238 (xsolve) R 10236 10238 9727 0 -1 4194304 609 0 0 0 67 0 0 0 24 0 1 0 2001092922 5111808 575 996147200 134512640 135239763 4294956192 18446744073709551615 135016504 0 0 4096 0 0 0 0 17 1 0 0
/proc/10238/statm: 1248 575 416 177 0 151 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 4992

[startup+1.5013 s]
/proc/loadavg: 1.98 2.00 1.99 3/82 10239
/proc/meminfo: memFree=1574040/2055920 swapFree=4180452/4192956
[pid=10238] ppid=10236 vsize=4992 CPUtime=1.46
/proc/10238/stat : 10238 (xsolve) R 10236 10238 9727 0 -1 4194304 609 0 0 0 146 0 0 0 25 0 1 0 2001092922 5111808 575 996147200 134512640 135239763 4294956192 18446744073709551615 134805419 0 0 4096 0 0 0 0 17 1 0 0
/proc/10238/statm: 1248 575 416 177 0 151 0
Current children cumulated CPU time (s) 1.46
Current children cumulated vsize (KiB) 4992

[startup+3.1014 s]
/proc/loadavg: 1.98 2.00 1.99 3/82 10239
/proc/meminfo: memFree=1573848/2055920 swapFree=4180452/4192956
[pid=10238] ppid=10236 vsize=4992 CPUtime=3.05
/proc/10238/stat : 10238 (xsolve) R 10236 10238 9727 0 -1 4194304 609 0 0 0 305 0 0 0 25 0 1 0 2001092922 5111808 575 996147200 134512640 135239763 4294956192 18446744073709551615 135030801 0 0 4096 0 0 0 0 17 1 0 0
/proc/10238/statm: 1248 575 416 177 0 151 0
Current children cumulated CPU time (s) 3.05
Current children cumulated vsize (KiB) 4992

[startup+6.3016 s]
/proc/loadavg: 1.98 2.00 1.99 3/82 10239
/proc/meminfo: memFree=1573848/2055920 swapFree=4180452/4192956
[pid=10238] ppid=10236 vsize=4992 CPUtime=6.22
/proc/10238/stat : 10238 (xsolve) R 10236 10238 9727 0 -1 4194304 609 0 0 0 622 0 0 0 25 0 1 0 2001092922 5111808 575 996147200 134512640 135239763 4294956192 18446744073709551615 134821592 0 0 4096 0 0 0 0 17 1 0 0
/proc/10238/statm: 1248 575 416 177 0 151 0
Current children cumulated CPU time (s) 6.22
Current children cumulated vsize (KiB) 4992

[startup+12.702 s]
/proc/loadavg: 1.98 2.00 1.99 3/82 10239
/proc/meminfo: memFree=1573720/2055920 swapFree=4180452/4192956
[pid=10238] ppid=10236 vsize=4992 CPUtime=12.56
/proc/10238/stat : 10238 (xsolve) R 10236 10238 9727 0 -1 4194304 609 0 0 0 1256 0 0 0 25 0 1 0 2001092922 5111808 575 996147200 134512640 135239763 4294956192 18446744073709551615 134804622 0 0 4096 0 0 0 0 17 1 0 0
/proc/10238/statm: 1248 575 416 177 0 151 0
Current children cumulated CPU time (s) 12.56
Current children cumulated vsize (KiB) 4992

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

[startup+12.802 s]
/proc/loadavg: 1.98 2.00 1.99 3/82 10239
/proc/meminfo: memFree=1573720/2055920 swapFree=4180452/4192956
[pid=10238] ppid=10236 vsize=4992 CPUtime=12.66
/proc/10238/stat : 10238 (xsolve) R 10236 10238 9727 0 -1 4194304 609 0 0 0 1266 0 0 0 25 0 1 0 2001092922 5111808 575 996147200 134512640 135239763 4294956192 18446744073709551615 135020419 0 0 4096 0 0 0 0 17 1 0 0
/proc/10238/statm: 1248 575 416 177 0 151 0
Current children cumulated CPU time (s) 12.66
Current children cumulated vsize (KiB) 4992

[startup+13.001 s]
/proc/loadavg: 1.98 2.00 1.99 3/82 10239
/proc/meminfo: memFree=1573720/2055920 swapFree=4180452/4192956
[pid=10238] ppid=10236 vsize=4992 CPUtime=12.86
/proc/10238/stat : 10238 (xsolve) R 10236 10238 9727 0 -1 4194304 609 0 0 0 1286 0 0 0 25 0 1 0 2001092922 5111808 575 996147200 134512640 135239763 4294956192 18446744073709551615 134821148 0 0 4096 0 0 0 0 17 1 0 0
/proc/10238/statm: 1248 575 416 177 0 151 0
Current children cumulated CPU time (s) 12.86
Current children cumulated vsize (KiB) 4992

[startup+13.101 s]
/proc/loadavg: 1.98 2.00 1.99 3/82 10239
/proc/meminfo: memFree=1573720/2055920 swapFree=4180452/4192956
[pid=10238] ppid=10236 vsize=4992 CPUtime=12.96
/proc/10238/stat : 10238 (xsolve) R 10236 10238 9727 0 -1 4194304 609 0 0 0 1296 0 0 0 25 0 1 0 2001092922 5111808 575 996147200 134512640 135239763 4294956192 18446744073709551615 134791611 0 0 4096 0 0 0 0 17 1 0 0
/proc/10238/statm: 1248 575 416 177 0 151 0
Current children cumulated CPU time (s) 12.96
Current children cumulated vsize (KiB) 4992

Child status: 0
Real time (s): 13.1331
CPU time (s): 13.007
CPU user time (s): 12.998
CPU system time (s): 0.008998
CPU usage (%): 99.0398
Max. virtual memory (cumulated for all children) (KiB): 4992

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 12.998
system time used= 0.008998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 623
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= 8
involuntary context switches= 538

runsolver used 0.015997 second user time and 0.042993 second system time

The end

Launcher Data (download as text)

Begin job on node29 at 2008-07-05 03:26:31
IDJOB=1082185
IDBENCH=57188
IDSOLVER=357
FILE ID=node29/1082185-1215221191
PBS_JOBID= 7881818
Free space on /tmp= 66496 MiB

SOLVER NAME= Mistral-option 1.314
BENCH NAME= CPAI08/csp/langford3/normalized-langford-3-12.xml
COMMAND LINE= HOME/xsolve BENCHNAME -heu dyn -sac 3 -ds 2 
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1082185-1215221191/watcher-1082185-1215221191 -o /tmp/evaluation-result-1082185-1215221191/solver-1082185-1215221191 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/xsolve HOME/instance-1082185-1215221191.xml -heu dyn -sac 3 -ds 2 

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= dee4599863daae352af5f2661ac2dee6
RANDOM SEED=150565867

node29.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		: 3000.220
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		: 3000.220
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:       1575360 kB
Buffers:         91772 kB
Cached:         297456 kB
SwapCached:       6872 kB
Active:         190516 kB
Inactive:       226120 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1575360 kB
SwapTotal:     4192956 kB
SwapFree:      4180452 kB
Dirty:            1216 kB
Writeback:           0 kB
Mapped:          43180 kB
Slab:            48872 kB
Committed_AS:  3482552 kB
PageTables:       2072 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= 66496 MiB
End job on node29 at 2008-07-05 03:26:45