Trace number 1071439

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
MDG-probe 2008-06-27UNSAT 12.2591 12.3266

DiagnosticValue
ASSIGNMENTS6246
CHECKS5816370

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
0.18/0.21	c 
0.18/0.21	c Parsing xml file
0.18/0.21	c          domains...............     0	(1 domains)
0.18/0.21	c          variables.............     0	(225 variables)
0.18/0.21	c          predicates............     0	(1 predicates)
0.18/0.21	c          constraints...........  0.63	(11025 constraints)
0.58/0.65	c Parsing time:   0.63
0.58/0.65	c
0.58/0.65	c Building model
0.68/0.70	c         0 constants
0.68/0.70	c       225 Boolean variables    (+0)
0.68/0.70	c         0 range variables      (+0)
0.68/0.70	c         0 domain (b) variables (+0)
0.68/0.70	c         0 domain (l) variables (+0)
0.68/0.70	c     11025 constraints          (+0)
0.68/0.70	c         0 values 
0.68/0.70	c Building time:   0.06
0.68/0.70	c
0.68/0.70	c Solving instance
0.68/0.70	c          heuristic = dom/wdeg
0.68/0.70	c          Randomized probing iteration = 100
0.68/0.70	c          probing limit = 30
0.68/0.70	c          level based weights = no
0.68/0.70	c          impact probing = no
0.68/0.70	c          restart policy = No restart
0.68/0.70	c          probing ..........  7.16
7.75/7.89	c          Probing Nodes  4539
7.75/7.89	c          final run   4.35
12.13/12.26	c Solving time:  11.51
12.13/12.26	c
12.13/12.26	s UNSATISFIABLE
12.13/12.26	d CHECKS 5816374
12.13/12.26	d ASSIGNMENTS 6246

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-1071439-1215169103/watcher-1071439-1215169103 -o /tmp/evaluation-result-1071439-1215169103/solver-1071439-1215169103 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/xsolve HOME/instance-1071439-1215169103.xml -v 1 -rs 1843032222 -probe 1 -ph 0 -heu dom/wdeg -res no 

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: 1.91 1.97 1.99 4/81 8028
/proc/meminfo: memFree=1743000/2055920 swapFree=4117732/4192956
[pid=8028] ppid=8026 vsize=820 CPUtime=0
/proc/8028/stat : 8028 (xsolve) R 8026 8028 7064 0 -1 4194304 39 0 0 0 0 0 0 0 19 0 1 0 1995882539 839680 25 996147200 134512640 135239859 4294956144 18446744073709551615 10519332 0 2147483391 4096 0 0 0 0 17 1 0 0
/proc/8028/statm: 205 25 19 177 0 3 0

[startup+0.186876 s]
/proc/loadavg: 1.91 1.97 1.99 4/81 8028
/proc/meminfo: memFree=1743000/2055920 swapFree=4117732/4192956
[pid=8028] ppid=8026 vsize=5880 CPUtime=0.17
/proc/8028/stat : 8028 (xsolve) R 8026 8028 7064 0 -1 4194304 807 0 0 0 17 0 0 0 18 0 1 0 1995882539 6021120 773 996147200 134512640 135239859 4294956144 18446744073709551615 10954363 0 0 4096 0 0 0 0 17 1 0 0
/proc/8028/statm: 1470 773 391 177 0 373 0
Current children cumulated CPU time (s) 0.17
Current children cumulated vsize (KiB) 5880

[startup+0.201874 s]
/proc/loadavg: 1.91 1.97 1.99 4/81 8028
/proc/meminfo: memFree=1743000/2055920 swapFree=4117732/4192956
[pid=8028] ppid=8026 vsize=6008 CPUtime=0.18
/proc/8028/stat : 8028 (xsolve) R 8026 8028 7064 0 -1 4194304 836 0 0 0 18 0 0 0 18 0 1 0 1995882539 6152192 802 996147200 134512640 135239859 4294956144 18446744073709551615 10954363 0 0 4096 0 0 0 0 17 1 0 0
/proc/8028/statm: 1502 802 391 177 0 405 0
Current children cumulated CPU time (s) 0.18
Current children cumulated vsize (KiB) 6008

[startup+0.301894 s]
/proc/loadavg: 1.91 1.97 1.99 4/81 8028
/proc/meminfo: memFree=1743000/2055920 swapFree=4117732/4192956
[pid=8028] ppid=8026 vsize=6668 CPUtime=0.29
/proc/8028/stat : 8028 (xsolve) R 8026 8028 7064 0 -1 4194304 1009 0 0 0 28 1 0 0 19 0 1 0 1995882539 6828032 975 996147200 134512640 135239859 4294956144 18446744073709551615 4160503814 0 0 4096 0 0 0 0 17 1 0 0
/proc/8028/statm: 1667 976 391 177 0 570 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 6668

[startup+0.701969 s]
/proc/loadavg: 1.91 1.97 1.99 4/81 8028
/proc/meminfo: memFree=1743000/2055920 swapFree=4117732/4192956
[pid=8028] ppid=8026 vsize=17980 CPUtime=0.68
/proc/8028/stat : 8028 (xsolve) R 8026 8028 7064 0 -1 4194304 3813 0 0 0 66 2 0 0 23 0 1 0 1995882539 18411520 3779 996147200 134512640 135239859 4294956144 18446744073709551615 10954363 0 0 4096 0 0 0 0 17 1 0 0
/proc/8028/statm: 4495 3781 406 177 0 3398 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 17980

[startup+1.50112 s]
/proc/loadavg: 1.91 1.97 1.99 3/82 8029
/proc/meminfo: memFree=1727888/2055920 swapFree=4117732/4192956
[pid=8028] ppid=8026 vsize=19592 CPUtime=1.48
/proc/8028/stat : 8028 (xsolve) R 8026 8028 7064 0 -1 4194304 4197 0 0 0 146 2 0 0 25 0 1 0 1995882539 20062208 4163 996147200 134512640 135239859 4294956144 18446744073709551615 134541350 0 0 4096 0 0 0 0 17 1 0 0
/proc/8028/statm: 4898 4163 410 177 0 3801 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 19592

[startup+3.10142 s]
/proc/loadavg: 1.91 1.97 1.99 3/82 8029
/proc/meminfo: memFree=1727824/2055920 swapFree=4117732/4192956
[pid=8028] ppid=8026 vsize=19592 CPUtime=3.07
/proc/8028/stat : 8028 (xsolve) R 8026 8028 7064 0 -1 4194304 4197 0 0 0 305 2 0 0 25 0 1 0 1995882539 20062208 4163 996147200 134512640 135239859 4294956144 18446744073709551615 134543101 0 0 4096 0 0 0 0 17 1 0 0
/proc/8028/statm: 4898 4163 410 177 0 3801 0
Current children cumulated CPU time (s) 3.07
Current children cumulated vsize (KiB) 19592

[startup+6.30202 s]
/proc/loadavg: 1.92 1.97 1.99 3/82 8029
/proc/meminfo: memFree=1727824/2055920 swapFree=4117732/4192956
[pid=8028] ppid=8026 vsize=19592 CPUtime=6.26
/proc/8028/stat : 8028 (xsolve) R 8026 8028 7064 0 -1 4194304 4197 0 0 0 624 2 0 0 25 0 1 0 1995882539 20062208 4163 996147200 134512640 135239859 4294956144 18446744073709551615 135103792 0 0 4096 0 0 0 0 17 1 0 0
/proc/8028/statm: 4898 4163 410 177 0 3801 0
Current children cumulated CPU time (s) 6.26
Current children cumulated vsize (KiB) 19592

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

[startup+6.40104 s]
/proc/loadavg: 1.92 1.97 1.99 3/82 8029
/proc/meminfo: memFree=1727824/2055920 swapFree=4117732/4192956
[pid=8028] ppid=8026 vsize=19592 CPUtime=6.35
/proc/8028/stat : 8028 (xsolve) R 8026 8028 7064 0 -1 4194304 4197 0 0 0 633 2 0 0 25 0 1 0 1995882539 20062208 4163 996147200 134512640 135239859 4294956144 18446744073709551615 134820337 0 0 4096 0 0 0 0 17 1 0 0
/proc/8028/statm: 4898 4163 410 177 0 3801 0
Current children cumulated CPU time (s) 6.35
Current children cumulated vsize (KiB) 19592

[startup+9.60164 s]
/proc/loadavg: 1.92 1.97 1.99 3/82 8029
/proc/meminfo: memFree=1727824/2055920 swapFree=4117732/4192956
[pid=8028] ppid=8026 vsize=19592 CPUtime=9.54
/proc/8028/stat : 8028 (xsolve) R 8026 8028 7064 0 -1 4194304 4198 0 0 0 952 2 0 0 25 0 1 0 1995882539 20062208 4164 996147200 134512640 135239859 4294956144 18446744073709551615 134820011 0 0 4096 0 0 0 0 17 1 0 0
/proc/8028/statm: 4898 4164 411 177 0 3801 0
Current children cumulated CPU time (s) 9.54
Current children cumulated vsize (KiB) 19592

[startup+11.2019 s]
/proc/loadavg: 1.93 1.97 1.99 3/82 8029
/proc/meminfo: memFree=1727824/2055920 swapFree=4117732/4192956
[pid=8028] ppid=8026 vsize=19592 CPUtime=11.13
/proc/8028/stat : 8028 (xsolve) R 8026 8028 7064 0 -1 4194304 4198 0 0 0 1111 2 0 0 25 0 1 0 1995882539 20062208 4164 996147200 134512640 135239859 4294956144 18446744073709551615 134543109 0 0 4096 0 0 0 0 17 1 0 0
/proc/8028/statm: 4898 4164 411 177 0 3801 0
Current children cumulated CPU time (s) 11.13
Current children cumulated vsize (KiB) 19592

[startup+12.0011 s]
/proc/loadavg: 1.93 1.97 1.99 3/82 8029
/proc/meminfo: memFree=1727824/2055920 swapFree=4117732/4192956
[pid=8028] ppid=8026 vsize=19592 CPUtime=11.93
/proc/8028/stat : 8028 (xsolve) R 8026 8028 7064 0 -1 4194304 4198 0 0 0 1191 2 0 0 25 0 1 0 1995882539 20062208 4164 996147200 134512640 135239859 4294956144 18446744073709551615 134543101 0 0 4096 0 0 0 0 17 1 0 0
/proc/8028/statm: 4898 4164 411 177 0 3801 0
Current children cumulated CPU time (s) 11.93
Current children cumulated vsize (KiB) 19592

[startup+12.2061 s]
/proc/loadavg: 1.93 1.97 1.99 3/82 8029
/proc/meminfo: memFree=1727824/2055920 swapFree=4117732/4192956
[pid=8028] ppid=8026 vsize=19592 CPUtime=12.13
/proc/8028/stat : 8028 (xsolve) R 8026 8028 7064 0 -1 4194304 4198 0 0 0 1211 2 0 0 25 0 1 0 1995882539 20062208 4164 996147200 134512640 135239859 4294956144 18446744073709551615 134538968 0 0 4096 0 0 0 0 17 1 0 0
/proc/8028/statm: 4898 4164 411 177 0 3801 0
Current children cumulated CPU time (s) 12.13
Current children cumulated vsize (KiB) 19592

[startup+12.3011 s]
/proc/loadavg: 1.93 1.97 1.99 3/82 8029
/proc/meminfo: memFree=1727824/2055920 swapFree=4117732/4192956
[pid=8028] ppid=8026 vsize=19592 CPUtime=12.23
/proc/8028/stat : 8028 (xsolve) R 8026 8028 7064 0 -1 4194304 4200 0 0 0 1221 2 0 0 25 0 1 0 1995882539 20062208 4166 996147200 134512640 135239859 4294956144 18446744073709551615 10948760 0 0 4096 0 0 0 0 17 1 0 0
/proc/8028/statm: 4898 4166 413 177 0 3801 0
Current children cumulated CPU time (s) 12.23
Current children cumulated vsize (KiB) 19592

Child status: 0
Real time (s): 12.3266
CPU time (s): 12.2591
CPU user time (s): 12.2321
CPU system time (s): 0.026995
CPU usage (%): 99.4528
Max. virtual memory (cumulated for all children) (KiB): 19592

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 12.2321
system time used= 0.026995
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4208
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= 396

runsolver used 0.015997 second user time and 0.038994 second system time

The end

Launcher Data (download as text)

Begin job on node47 at 2008-07-04 12:58:23
IDJOB=1071439
IDBENCH=56088
IDSOLVER=342
FILE ID=node47/1071439-1215169103
PBS_JOBID= 7881406
Free space on /tmp= 66544 MiB

SOLVER NAME= MDG-probe 2008-06-27
BENCH NAME= CPAI08/csp/chessboardColoration/normalized-cc-15-15-2.xml
COMMAND LINE= HOME/xsolve BENCHNAME -v 1 -rs RANDOMSEED -probe 1 -ph 0 -heu dom/wdeg -res no
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1071439-1215169103/watcher-1071439-1215169103 -o /tmp/evaluation-result-1071439-1215169103/solver-1071439-1215169103 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/xsolve HOME/instance-1071439-1215169103.xml -v 1 -rs 1843032222 -probe 1 -ph 0 -heu dom/wdeg -res no

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= d253e49a50bf50fec79c621cae233451
RANDOM SEED=1843032222

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:       1743480 kB
Buffers:         34060 kB
Cached:         115188 kB
SwapCached:      69100 kB
Active:         209512 kB
Inactive:        48084 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1743480 kB
SwapTotal:     4192956 kB
SwapFree:      4117732 kB
Dirty:            2812 kB
Writeback:           0 kB
Mapped:         124400 kB
Slab:            39716 kB
Committed_AS:  4039444 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 12:58:35