Trace number 1071450

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-prime 1.313UNSAT 9.50855 9.60389

DiagnosticValue
ASSIGNMENTS5663
CHECKS4971690

General information on the benchmark

Namecsp/chessboardColoration/
normalized-cc-15-15-2.xml
MD5SUMd253e49a50bf50fec79c621cae233451
Bench CategoryN-ARY-INT (n-ary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark6.48001
Satisfiable
(Un)Satisfiability was proved
Number of variables225
Number of constraints11025
Maximum constraint arity4
Maximum domain size2
Number of constraints which are defined in extension0
Number of constraints which are defined in intension11025
Global constraints used (with number of constraints)

Solver Data (download as text)

0.18/0.21	c mistral-prime version 1.313
9.39/9.54	s UNSATISFIABLE
9.39/9.54	d CHECKS 4971694
9.39/9.54	d ASSIGNMENTS 5663

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-1071450-1215169145/watcher-1071450-1215169145 -o /tmp/evaluation-result-1071450-1215169145/solver-1071450-1215169145 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/xsolve HOME/instance-1071450-1215169145.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: 2.06 2.00 2.00 4/81 8165
/proc/meminfo: memFree=1742680/2055920 swapFree=4117732/4192956
[pid=8165] ppid=8163 vsize=816 CPUtime=0
/proc/8165/stat : 8165 (xsolve) R 8163 8165 7064 0 -1 4194304 39 0 0 0 0 0 0 0 19 0 1 0 1995886831 835584 25 996147200 134512640 135237403 4294956240 18446744073709551615 10519332 0 2147483391 4096 0 0 0 0 17 1 0 0
/proc/8165/statm: 204 25 19 176 0 3 0

[startup+0.110925 s]
/proc/loadavg: 2.06 2.00 2.00 4/81 8165
/proc/meminfo: memFree=1742680/2055920 swapFree=4117732/4192956
[pid=8165] ppid=8163 vsize=5360 CPUtime=0.1
/proc/8165/stat : 8165 (xsolve) R 8163 8165 7064 0 -1 4194304 651 0 0 0 10 0 0 0 18 0 1 0 1995886831 5488640 617 996147200 134512640 135237403 4294956240 18446744073709551615 134614974 0 0 4096 0 0 0 0 17 1 0 0
/proc/8165/statm: 1340 617 371 176 0 244 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 5360

[startup+0.201941 s]
/proc/loadavg: 2.06 2.00 2.00 4/81 8165
/proc/meminfo: memFree=1742680/2055920 swapFree=4117732/4192956
[pid=8165] ppid=8163 vsize=6004 CPUtime=0.18
/proc/8165/stat : 8165 (xsolve) R 8163 8165 7064 0 -1 4194304 814 0 0 0 18 0 0 0 18 0 1 0 1995886831 6148096 780 996147200 134512640 135237403 4294956240 18446744073709551615 134552521 0 0 4096 0 0 0 0 17 1 0 0
/proc/8165/statm: 1501 780 371 176 0 405 0
Current children cumulated CPU time (s) 0.18
Current children cumulated vsize (KiB) 6004

[startup+0.30196 s]
/proc/loadavg: 2.06 2.00 2.00 4/81 8165
/proc/meminfo: memFree=1742680/2055920 swapFree=4117732/4192956
[pid=8165] ppid=8163 vsize=6664 CPUtime=0.28
/proc/8165/stat : 8165 (xsolve) R 8163 8165 7064 0 -1 4194304 987 0 0 0 28 0 0 0 19 0 1 0 1995886831 6823936 953 996147200 134512640 135237403 4294956240 18446744073709551615 134680522 0 0 4096 0 0 0 0 17 1 0 0
/proc/8165/statm: 1666 953 371 176 0 570 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 6664

[startup+0.701044 s]
/proc/loadavg: 2.06 2.00 2.00 4/81 8165
/proc/meminfo: memFree=1742680/2055920 swapFree=4117732/4192956
[pid=8165] ppid=8163 vsize=17976 CPUtime=0.68
/proc/8165/stat : 8165 (xsolve) R 8163 8165 7064 0 -1 4194304 3798 0 0 0 67 1 0 0 23 0 1 0 1995886831 18407424 3764 996147200 134512640 135237403 4294956240 18446744073709551615 134551429 0 0 4096 0 0 0 0 17 1 0 0
/proc/8165/statm: 4494 3764 379 176 0 3398 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 17976

[startup+1.50119 s]
/proc/loadavg: 2.06 2.00 2.00 3/82 8166
/proc/meminfo: memFree=1727504/2055920 swapFree=4117732/4192956
[pid=8165] ppid=8163 vsize=19588 CPUtime=1.47
/proc/8165/stat : 8165 (xsolve) R 8163 8165 7064 0 -1 4194304 4176 0 0 0 146 1 0 0 25 0 1 0 1995886831 20058112 4142 996147200 134512640 135237403 4294956240 18446744073709551615 134543513 0 0 4096 0 0 0 0 17 1 0 0
/proc/8165/statm: 4897 4142 389 176 0 3801 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 19588

[startup+3.10149 s]
/proc/loadavg: 2.06 2.00 2.00 3/82 8166
/proc/meminfo: memFree=1727376/2055920 swapFree=4117732/4192956
[pid=8165] ppid=8163 vsize=19588 CPUtime=3.05
/proc/8165/stat : 8165 (xsolve) R 8163 8165 7064 0 -1 4194304 4176 0 0 0 304 1 0 0 25 0 1 0 1995886831 20058112 4142 996147200 134512640 135237403 4294956240 18446744073709551615 134817899 0 0 4096 0 0 0 0 17 1 0 0
/proc/8165/statm: 4897 4142 389 176 0 3801 0
Current children cumulated CPU time (s) 3.05
Current children cumulated vsize (KiB) 19588

[startup+6.30109 s]
/proc/loadavg: 2.06 2.00 2.00 4/82 8166
/proc/meminfo: memFree=1727440/2055920 swapFree=4117732/4192956
[pid=8165] ppid=8163 vsize=19588 CPUtime=6.22
/proc/8165/stat : 8165 (xsolve) R 8163 8165 7064 0 -1 4194304 4176 0 0 0 621 1 0 0 25 0 1 0 1995886831 20058112 4142 996147200 134512640 135237403 4294956240 18446744073709551615 134539364 0 0 4096 0 0 0 0 17 1 0 0
/proc/8165/statm: 4897 4142 389 176 0 3801 0
Current children cumulated CPU time (s) 6.22
Current children cumulated vsize (KiB) 19588

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

[startup+6.40111 s]
/proc/loadavg: 2.06 2.00 2.00 4/82 8166
/proc/meminfo: memFree=1727440/2055920 swapFree=4117732/4192956
[pid=8165] ppid=8163 vsize=19588 CPUtime=6.32
/proc/8165/stat : 8165 (xsolve) R 8163 8165 7064 0 -1 4194304 4176 0 0 0 631 1 0 0 25 0 1 0 1995886831 20058112 4142 996147200 134512640 135237403 4294956240 18446744073709551615 134532566 0 0 4096 0 0 0 0 17 1 0 0
/proc/8165/statm: 4897 4142 389 176 0 3801 0
Current children cumulated CPU time (s) 6.32
Current children cumulated vsize (KiB) 19588

[startup+8.00141 s]
/proc/loadavg: 2.05 2.00 2.00 3/82 8166
/proc/meminfo: memFree=1727376/2055920 swapFree=4117732/4192956
[pid=8165] ppid=8163 vsize=19588 CPUtime=7.91
/proc/8165/stat : 8165 (xsolve) R 8163 8165 7064 0 -1 4194304 4176 0 0 0 790 1 0 0 25 0 1 0 1995886831 20058112 4142 996147200 134512640 135237403 4294956240 18446744073709551615 134543522 0 0 4096 0 0 0 0 17 1 0 0
/proc/8165/statm: 4897 4142 389 176 0 3801 0
Current children cumulated CPU time (s) 7.91
Current children cumulated vsize (KiB) 19588

[startup+8.80156 s]
/proc/loadavg: 2.05 2.00 2.00 3/82 8166
/proc/meminfo: memFree=1727376/2055920 swapFree=4117732/4192956
[pid=8165] ppid=8163 vsize=19588 CPUtime=8.7
/proc/8165/stat : 8165 (xsolve) R 8163 8165 7064 0 -1 4194304 4176 0 0 0 869 1 0 0 25 0 1 0 1995886831 20058112 4142 996147200 134512640 135237403 4294956240 18446744073709551615 135095200 0 0 4096 0 0 0 0 17 1 0 0
/proc/8165/statm: 4897 4142 389 176 0 3801 0
Current children cumulated CPU time (s) 8.7
Current children cumulated vsize (KiB) 19588

[startup+9.20164 s]
/proc/loadavg: 2.05 2.00 2.00 3/82 8166
/proc/meminfo: memFree=1727376/2055920 swapFree=4117732/4192956
[pid=8165] ppid=8163 vsize=19588 CPUtime=9.1
/proc/8165/stat : 8165 (xsolve) R 8163 8165 7064 0 -1 4194304 4176 0 0 0 909 1 0 0 25 0 1 0 1995886831 20058112 4142 996147200 134512640 135237403 4294956240 18446744073709551615 134532560 0 0 4096 0 0 0 0 17 1 0 0
/proc/8165/statm: 4897 4142 389 176 0 3801 0
Current children cumulated CPU time (s) 9.1
Current children cumulated vsize (KiB) 19588

[startup+9.6032 s]
/proc/loadavg: 2.05 2.00 2.00 3/82 8166
/proc/meminfo: memFree=1727376/2055920 swapFree=4117732/4192956
[pid=8165] ppid=8163 vsize=9156 CPUtime=9.5
/proc/8165/stat : 8165 (xsolve) R 8163 8165 7064 0 -1 4194304 4190 0 0 0 948 2 0 0 25 0 1 0 1995886831 9375744 583 996147200 134512640 135237403 4294956240 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/8165/statm: 2289 583 403 176 0 1193 0
Current children cumulated CPU time (s) 9.5
Current children cumulated vsize (KiB) 9156

Child status: 0
Real time (s): 9.60389
CPU time (s): 9.50855
CPU user time (s): 9.48556
CPU system time (s): 0.022996
CPU usage (%): 99.0073
Max. virtual memory (cumulated for all children) (KiB): 19588

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 9.48556
system time used= 0.022996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4192
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= 7
involuntary context switches= 394

runsolver used 0.010998 second user time and 0.034994 second system time

The end

Launcher Data (download as text)

Begin job on node47 at 2008-07-04 12:59:06
IDJOB=1071450
IDBENCH=56088
IDSOLVER=358
FILE ID=node47/1071450-1215169145
PBS_JOBID= 7881406
Free space on /tmp= 66544 MiB

SOLVER NAME= Mistral-prime 1.313
BENCH NAME= CPAI08/csp/chessboardColoration/normalized-cc-15-15-2.xml
COMMAND LINE= HOME/xsolve BENCHNAME 
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1071450-1215169145/watcher-1071450-1215169145 -o /tmp/evaluation-result-1071450-1215169145/solver-1071450-1215169145 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/xsolve HOME/instance-1071450-1215169145.xml 

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= d253e49a50bf50fec79c621cae233451
RANDOM SEED=887203448

node47.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		: 3000.281
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		: 3000.281
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:       1743160 kB
Buffers:         34316 kB
Cached:         115204 kB
SwapCached:      69100 kB
Active:         209840 kB
Inactive:        48072 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1743160 kB
SwapTotal:     4192956 kB
SwapFree:      4117732 kB
Dirty:            3188 kB
Writeback:           0 kB
Mapped:         124400 kB
Slab:            39672 kB
Committed_AS:  4041784 kB
PageTables:       2116 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= 66544 MiB
End job on node47 at 2008-07-04 12:59:15