Trace number 1054296

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 2008-06-27SAT 12.7471 12.7668

DiagnosticValue
ASSIGNMENTS52996
CHECKS2509000

General information on the benchmark

Namecsp/rand-8-20-5/
normalized-rand-8-20-5-18-800-16_ext.xml
MD5SUM6055b466c2f8fc9ec37eadf95d8b3dc4
Bench CategoryN-ARY-EXT (n-ary constraints in extension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark4.34634
Satisfiable
(Un)Satisfiability was proved
Number of variables20
Number of constraints18
Maximum constraint arity8
Maximum domain size5
Number of constraints which are defined in extension18
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

0.00/0.00	c mistral-prime version 1.313
0.00/0.00	c 
0.00/0.00	c Parsing xml file
0.00/0.00	c          domains...............     0	(1 domains)
0.00/0.00	c          variables.............     0	(20 variables)
0.00/0.00	c          relations.............  2.69	(18 relations)
2.68/2.71	c          constraints...........5.3343e-17	(18 constraints)
2.68/2.71	c Parsing time:   2.69
2.68/2.71	c
2.68/2.71	c Building model
2.68/2.76	c         0 constants
2.68/2.76	c         0 Boolean variables    (+0)
2.68/2.76	c         0 range variables      (+0)
2.68/2.76	c         0 domain (b) variables (+0)
2.68/2.76	c        20 domain (l) variables (+0)
2.68/2.76	c        18 constraints          (+0)
2.68/2.76	c         0 values 
2.68/2.76	c Building time:   0.06
2.68/2.76	c
2.68/2.76	c Solving instance
2.68/2.76	c          heuristic = dom/wdeg
2.68/2.76	c          Randomized probing iteration = 100
2.68/2.76	c          probing limit = 30
2.68/2.76	c          level based weights = no
2.68/2.76	c          impact probing = no
2.68/2.76	c          restart policy = No restart
2.68/2.76	c          probing ..........  0.49
3.19/3.26	c          Probing Nodes  4010
3.19/3.26	c          final run   9.42
12.57/12.68	c Solving time:   9.91
12.57/12.68	c
12.57/12.68	s SATISFIABLE
12.57/12.68	v 0 0 2 0 0 1 2 0 1 4 4 2 1 0 3 1 0 2 2 0
12.57/12.68	d CHECKS 2509004
12.57/12.68	d ASSIGNMENTS 52996

Verifier Data (download as text)

OK

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-1054296-1215058640/watcher-1054296-1215058640 -o /tmp/evaluation-result-1054296-1215058640/solver-1054296-1215058640 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/xsolve HOME/instance-1054296-1215058640.xml -v 1 -rs 1029629856 -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: 2.00 2.00 2.00 4/88 26376
/proc/meminfo: memFree=1585376/2055920 swapFree=4179076/4192956
[pid=26376] ppid=26374 vsize=4588 CPUtime=0
/proc/26376/stat : 26376 (xsolve) R 26374 26376 22236 0 -1 4194304 442 0 0 0 0 0 0 0 22 0 1 0 117544835 4698112 409 996147200 134512640 135239859 4294956144 18446744073709551615 12041040 0 0 4096 0 0 0 0 17 1 0 0
/proc/26376/statm: 1148 420 365 177 0 51 0

[startup+0.0458529 s]
/proc/loadavg: 2.00 2.00 2.00 4/88 26376
/proc/meminfo: memFree=1585376/2055920 swapFree=4179076/4192956
[pid=26376] ppid=26374 vsize=5692 CPUtime=0.03
/proc/26376/stat : 26376 (xsolve) R 26374 26376 22236 0 -1 4194304 688 0 0 0 3 0 0 0 22 0 1 0 117544835 5828608 654 996147200 134512640 135239859 4294956144 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/26376/statm: 1423 654 373 177 0 326 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 5692

[startup+0.101856 s]
/proc/loadavg: 2.00 2.00 2.00 4/88 26376
/proc/meminfo: memFree=1585376/2055920 swapFree=4179076/4192956
[pid=26376] ppid=26374 vsize=6880 CPUtime=0.09
/proc/26376/stat : 26376 (xsolve) R 26374 26376 22236 0 -1 4194304 1003 0 0 0 9 0 0 0 22 0 1 0 117544835 7045120 969 996147200 134512640 135239859 4294956144 18446744073709551615 12203643 0 0 4096 0 0 0 0 17 1 0 0
/proc/26376/statm: 1720 969 373 177 0 623 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 6880

[startup+0.30188 s]
/proc/loadavg: 2.00 2.00 2.00 4/88 26376
/proc/meminfo: memFree=1585376/2055920 swapFree=4179076/4192956
[pid=26376] ppid=26374 vsize=11280 CPUtime=0.29
/proc/26376/stat : 26376 (xsolve) R 26374 26376 22236 0 -1 4194304 2123 0 0 0 29 0 0 0 24 0 1 0 117544835 11550720 2089 996147200 134512640 135239859 4294956144 18446744073709551615 12203643 0 0 4096 0 0 0 0 17 1 0 0
/proc/26376/statm: 2820 2089 373 177 0 1723 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 11280

[startup+0.701926 s]
/proc/loadavg: 2.00 2.00 2.00 4/88 26376
/proc/meminfo: memFree=1585376/2055920 swapFree=4179076/4192956
[pid=26376] ppid=26374 vsize=20252 CPUtime=0.69
/proc/26376/stat : 26376 (xsolve) R 26374 26376 22236 0 -1 4194304 4359 0 0 0 67 2 0 0 25 0 1 0 117544835 20738048 4325 996147200 134512640 135239859 4294956144 18446744073709551615 12203643 0 0 4096 0 0 0 0 17 1 0 0
/proc/26376/statm: 5063 4325 373 177 0 3966 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 20252

[startup+1.50201 s]
/proc/loadavg: 2.00 2.00 2.00 3/89 26377
/proc/meminfo: memFree=1562712/2055920 swapFree=4179076/4192956
[pid=26376] ppid=26374 vsize=37896 CPUtime=1.48
/proc/26376/stat : 26376 (xsolve) R 26374 26376 22236 0 -1 4194304 8794 0 0 0 144 4 0 0 25 0 1 0 117544835 38805504 8760 996147200 134512640 135239859 4294956144 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/26376/statm: 9474 8760 373 177 0 8377 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 37896

[startup+3.1012 s]
/proc/loadavg: 2.00 2.00 2.00 3/89 26377
/proc/meminfo: memFree=1537304/2055920 swapFree=4179076/4192956
[pid=26376] ppid=26374 vsize=66120 CPUtime=3.08
/proc/26376/stat : 26376 (xsolve) R 26374 26376 22236 0 -1 4194304 15898 0 0 0 300 8 0 0 25 0 1 0 117544835 67706880 15864 996147200 134512640 135239859 4294956144 18446744073709551615 134820182 0 0 4096 0 0 0 0 17 1 0 0
/proc/26376/statm: 16530 15864 410 177 0 15433 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 66120

[startup+6.30156 s]
/proc/loadavg: 2.16 2.03 2.01 3/89 26377
/proc/meminfo: memFree=1522528/2055920 swapFree=4179076/4192956
[pid=26376] ppid=26374 vsize=66120 CPUtime=6.28
/proc/26376/stat : 26376 (xsolve) R 26374 26376 22236 0 -1 4194304 15899 0 0 0 620 8 0 0 25 0 1 0 117544835 67706880 15865 996147200 134512640 135239859 4294956144 18446744073709551615 135097001 0 0 4096 0 0 0 0 17 1 0 0
/proc/26376/statm: 16530 15865 411 177 0 15433 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 66120

[startup+12.7023 s]
/proc/loadavg: 2.23 2.05 2.02 3/89 26377
/proc/meminfo: memFree=1523232/2055920 swapFree=4179076/4192956
[pid=26376] ppid=26374 vsize=65196 CPUtime=12.67
/proc/26376/stat : 26376 (xsolve) R 26374 26376 22236 0 -1 4194304 15910 0 0 0 1259 8 0 0 25 0 1 0 117544835 66760704 15645 996147200 134512640 135239859 4294956144 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/26376/statm: 16299 15569 422 177 0 15202 0
Current children cumulated CPU time (s) 12.67
Current children cumulated vsize (KiB) 65196

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

Child status: 0
Real time (s): 12.7668
CPU time (s): 12.7471
CPU user time (s): 12.6521
CPU system time (s): 0.094985
CPU usage (%): 99.8452
Max. virtual memory (cumulated for all children) (KiB): 66120

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 12.6521
system time used= 0.094985
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 15911
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= 70

runsolver used 0.018997 second user time and 0.044993 second system time

The end

Launcher Data (download as text)

Begin job on node76 at 2008-07-03 06:17:22
IDJOB=1054296
IDBENCH=56211
IDSOLVER=342
FILE ID=node76/1054296-1215058640
PBS_JOBID= 7875025
Free space on /tmp= 66528 MiB

SOLVER NAME= MDG-probe 2008-06-27
BENCH NAME= CPAI08/csp/rand-8-20-5/normalized-rand-8-20-5-18-800-16_ext.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-1054296-1215058640/watcher-1054296-1215058640 -o /tmp/evaluation-result-1054296-1215058640/solver-1054296-1215058640 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/xsolve HOME/instance-1054296-1215058640.xml -v 1 -rs 1029629856 -probe 1 -ph 0 -heu dom/wdeg -res no

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= 6055b466c2f8fc9ec37eadf95d8b3dc4
RANDOM SEED=1029629856

node76.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		: 3000.222
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		: 3000.222
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:       1585792 kB
Buffers:         57516 kB
Cached:         316848 kB
SwapCached:       7660 kB
Active:         149132 kB
Inactive:       248392 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1585792 kB
SwapTotal:     4192956 kB
SwapFree:      4179076 kB
Dirty:           22904 kB
Writeback:           0 kB
Mapped:          42020 kB
Slab:            57380 kB
Committed_AS:   321540 kB
PageTables:       2128 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 node76 at 2008-07-03 06:17:35