Trace number 1054250

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 10.6394 10.6503

DiagnosticValue
ASSIGNMENTS40177
CHECKS1927700

General information on the benchmark

Namecsp/rand-8-20-5/
normalized-rand-8-20-5-18-800-10_ext.xml
MD5SUM513cf35a6a387b7eda5da4b4c70b12f5
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 benchmark5.03423
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)

0.19/0.20	c mistral-prime version 1.313
0.19/0.20	c 
0.19/0.20	c Parsing xml file
0.19/0.20	c          domains...............     0	(1 domains)
0.19/0.20	c          variables.............     0	(20 variables)
0.19/0.20	c          relations.............  2.79	(18 relations)
2.69/2.79	c          constraints...........-3.5562e-17	(18 constraints)
2.69/2.79	c Parsing time:   2.79
2.69/2.79	c
2.69/2.79	c Building model
2.79/2.85	c         0 constants
2.79/2.85	c         0 Boolean variables    (+0)
2.79/2.85	c         0 range variables      (+0)
2.79/2.85	c         0 domain (b) variables (+0)
2.79/2.85	c        20 domain (l) variables (+0)
2.79/2.85	c        18 constraints          (+0)
2.79/2.85	c         0 values 
2.79/2.85	c Building time:   0.05
2.79/2.85	c
2.79/2.85	c Solving instance
2.79/2.85	c          heuristic = dom/wdeg
2.79/2.85	c          Randomized probing iteration = 100
2.79/2.85	c          probing limit = 30
2.79/2.85	c          level based weights = no
2.79/2.85	c          impact probing = no
2.79/2.85	c          restart policy = No restart
2.79/2.85	c          probing ..........  0.51
3.29/3.36	c          Probing Nodes  4017
3.29/3.36	c          final run   7.19
10.48/10.56	c Solving time:    7.7
10.48/10.56	c
10.48/10.56	s SATISFIABLE
10.48/10.56	v 4 2 0 4 3 1 1 4 0 1 0 0 1 3 4 3 3 3 3 0
10.48/10.56	d CHECKS 1927695
10.48/10.56	d ASSIGNMENTS 40177

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-1054250-1215058480/watcher-1054250-1215058480 -o /tmp/evaluation-result-1054250-1215058480/solver-1054250-1215058480 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/xsolve HOME/instance-1054250-1215058480.xml -v 1 -rs 2020913264 -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: 2.58 2.28 2.15 4/72 27387
/proc/meminfo: memFree=1723064/2055920 swapFree=4180584/4192956
[pid=27387] ppid=27385 vsize=4584 CPUtime=0
/proc/27387/stat : 27387 (xsolve) R 27385 27387 26443 0 -1 4194304 307 0 0 0 0 0 0 0 18 0 1 0 1984797986 4694016 274 996147200 134512640 135239859 4294956144 18446744073709551615 134529744 0 0 4096 0 0 0 0 17 1 0 0
/proc/27387/statm: 1146 284 240 177 0 49 0

[startup+0.0292539 s]
/proc/loadavg: 2.58 2.28 2.15 4/72 27387
/proc/meminfo: memFree=1723064/2055920 swapFree=4180584/4192956
[pid=27387] ppid=27385 vsize=5428 CPUtime=0.02
/proc/27387/stat : 27387 (xsolve) R 27385 27387 26443 0 -1 4194304 591 0 0 0 2 0 0 0 18 0 1 0 1984797986 5558272 557 996147200 134512640 135239859 4294956144 18446744073709551615 7169605 0 0 4096 0 0 0 0 17 1 0 0
/proc/27387/statm: 1357 557 373 177 0 260 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 5428

[startup+0.102264 s]
/proc/loadavg: 2.58 2.28 2.15 4/72 27387
/proc/meminfo: memFree=1723064/2055920 swapFree=4180584/4192956
[pid=27387] ppid=27385 vsize=6748 CPUtime=0.09
/proc/27387/stat : 27387 (xsolve) R 27385 27387 26443 0 -1 4194304 986 0 0 0 9 0 0 0 18 0 1 0 1984797986 6909952 952 996147200 134512640 135239859 4294956144 18446744073709551615 7169659 0 0 4096 0 0 0 0 17 1 0 0
/proc/27387/statm: 1687 952 373 177 0 590 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 6748

[startup+0.302287 s]
/proc/loadavg: 2.58 2.28 2.15 4/72 27387
/proc/meminfo: memFree=1723064/2055920 swapFree=4180584/4192956
[pid=27387] ppid=27385 vsize=11016 CPUtime=0.29
/proc/27387/stat : 27387 (xsolve) R 27385 27387 26443 0 -1 4194304 2067 0 0 0 28 1 0 0 19 0 1 0 1984797986 11280384 2033 996147200 134512640 135239859 4294956144 18446744073709551615 7169659 0 0 4096 0 0 0 0 17 1 0 0
/proc/27387/statm: 2754 2033 373 177 0 1657 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 11016

[startup+0.702334 s]
/proc/loadavg: 2.58 2.28 2.15 4/72 27387
/proc/meminfo: memFree=1723064/2055920 swapFree=4180584/4192956
[pid=27387] ppid=27385 vsize=19860 CPUtime=0.7
/proc/27387/stat : 27387 (xsolve) R 27385 27387 26443 0 -1 4194304 4233 0 0 0 67 3 0 0 22 0 1 0 1984797986 20336640 4199 996147200 134512640 135239859 4294956144 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/27387/statm: 4965 4199 373 177 0 3868 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 19860

[startup+1.50143 s]
/proc/loadavg: 2.53 2.27 2.15 3/73 27388
/proc/meminfo: memFree=1701168/2055920 swapFree=4180584/4192956
[pid=27387] ppid=27385 vsize=37100 CPUtime=1.49
/proc/27387/stat : 27387 (xsolve) R 27385 27387 26443 0 -1 4194304 8550 0 0 0 144 5 0 0 25 0 1 0 1984797986 37990400 8516 996147200 134512640 135239859 4294956144 18446744073709551615 134579060 0 0 4096 0 0 0 0 17 1 0 0
/proc/27387/statm: 9275 8518 373 177 0 8178 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 37100

[startup+3.10162 s]
/proc/loadavg: 2.53 2.27 2.15 3/73 27388
/proc/meminfo: memFree=1677168/2055920 swapFree=4180584/4192956
[pid=27387] ppid=27385 vsize=66120 CPUtime=3.09
/proc/27387/stat : 27387 (xsolve) R 27385 27387 26443 0 -1 4194304 15883 0 0 0 298 11 0 0 25 0 1 0 1984797986 67706880 15849 996147200 134512640 135239859 4294956144 18446744073709551615 134789504 0 0 4096 0 0 0 0 17 1 0 0
/proc/27387/statm: 16530 15849 410 177 0 15433 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 66120

[startup+6.302 s]
/proc/loadavg: 2.53 2.27 2.15 3/73 27388
/proc/meminfo: memFree=1660912/2055920 swapFree=4180584/4192956
[pid=27387] ppid=27385 vsize=66120 CPUtime=6.28
/proc/27387/stat : 27387 (xsolve) R 27385 27387 26443 0 -1 4194304 15884 0 0 0 617 11 0 0 25 0 1 0 1984797986 67706880 15850 996147200 134512640 135239859 4294956144 18446744073709551615 134820071 0 0 4096 0 0 0 0 17 1 0 0
/proc/27387/statm: 16530 15850 411 177 0 15433 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 66120

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

[startup+7.90119 s]
/proc/loadavg: 2.49 2.27 2.15 3/73 27388
/proc/meminfo: memFree=1661040/2055920 swapFree=4180584/4192956
[pid=27387] ppid=27385 vsize=66120 CPUtime=7.88
/proc/27387/stat : 27387 (xsolve) R 27385 27387 26443 0 -1 4194304 15884 0 0 0 777 11 0 0 25 0 1 0 1984797986 67706880 15850 996147200 134512640 135239859 4294956144 18446744073709551615 134789545 0 0 4096 0 0 0 0 17 1 0 0
/proc/27387/statm: 16530 15850 411 177 0 15433 0
Current children cumulated CPU time (s) 7.88
Current children cumulated vsize (KiB) 66120

[startup+9.50237 s]
/proc/loadavg: 2.49 2.27 2.15 3/73 27388
/proc/meminfo: memFree=1661040/2055920 swapFree=4180584/4192956
[pid=27387] ppid=27385 vsize=66120 CPUtime=9.48
/proc/27387/stat : 27387 (xsolve) R 27385 27387 26443 0 -1 4194304 15884 0 0 0 937 11 0 0 25 0 1 0 1984797986 67706880 15850 996147200 134512640 135239859 4294956144 18446744073709551615 134820197 0 0 4096 0 0 0 0 17 1 0 0
/proc/27387/statm: 16530 15850 411 177 0 15433 0
Current children cumulated CPU time (s) 9.48
Current children cumulated vsize (KiB) 66120

[startup+10.3015 s]
/proc/loadavg: 2.49 2.27 2.15 3/73 27388
/proc/meminfo: memFree=1661104/2055920 swapFree=4180584/4192956
[pid=27387] ppid=27385 vsize=66120 CPUtime=10.28
/proc/27387/stat : 27387 (xsolve) R 27385 27387 26443 0 -1 4194304 15884 0 0 0 1017 11 0 0 25 0 1 0 1984797986 67706880 15850 996147200 134512640 135239859 4294956144 18446744073709551615 135097003 0 0 4096 0 0 0 0 17 1 0 0
/proc/27387/statm: 16530 15850 411 177 0 15433 0
Current children cumulated CPU time (s) 10.28
Current children cumulated vsize (KiB) 66120

[startup+10.5015 s]
/proc/loadavg: 2.49 2.27 2.15 3/73 27388
/proc/meminfo: memFree=1661104/2055920 swapFree=4180584/4192956
[pid=27387] ppid=27385 vsize=66120 CPUtime=10.48
/proc/27387/stat : 27387 (xsolve) R 27385 27387 26443 0 -1 4194304 15884 0 0 0 1037 11 0 0 25 0 1 0 1984797986 67706880 15850 996147200 134512640 135239859 4294956144 18446744073709551615 134820065 0 0 4096 0 0 0 0 17 1 0 0
/proc/27387/statm: 16530 15850 411 177 0 15433 0
Current children cumulated CPU time (s) 10.48
Current children cumulated vsize (KiB) 66120

[startup+10.6015 s]
/proc/loadavg: 2.49 2.27 2.15 3/73 27388
/proc/meminfo: memFree=1661104/2055920 swapFree=4180584/4192956
[pid=27387] ppid=27385 vsize=63664 CPUtime=10.58
/proc/27387/stat : 27387 (xsolve) R 27385 27387 26443 0 -1 4194304 15895 0 0 0 1047 11 0 0 25 0 1 0 1984797986 65191936 15247 996147200 134512640 135239859 4294956144 18446744073709551615 7167484 0 0 4096 0 0 0 0 17 1 0 0
/proc/27387/statm: 15916 15247 422 177 0 14819 0
Current children cumulated CPU time (s) 10.58
Current children cumulated vsize (KiB) 63664

Child status: 0
Real time (s): 10.6503
CPU time (s): 10.6394
CPU user time (s): 10.5124
CPU system time (s): 0.12698
CPU usage (%): 99.8975
Max. virtual memory (cumulated for all children) (KiB): 66120

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 10.5124
system time used= 0.12698
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 15896
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= 59

runsolver used 0.009998 second user time and 0.039993 second system time

The end

Launcher Data (download as text)

Begin job on node75 at 2008-07-03 06:14:42
IDJOB=1054250
IDBENCH=56209
IDSOLVER=342
FILE ID=node75/1054250-1215058480
PBS_JOBID= 7875175
Free space on /tmp= 66512 MiB

SOLVER NAME= MDG-probe 2008-06-27
BENCH NAME= CPAI08/csp/rand-8-20-5/normalized-rand-8-20-5-18-800-10_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-1054250-1215058480/watcher-1054250-1215058480 -o /tmp/evaluation-result-1054250-1215058480/solver-1054250-1215058480 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/xsolve HOME/instance-1054250-1215058480.xml -v 1 -rs 2020913264 -probe 1 -ph 0 -heu dom/wdeg -res no

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= 513cf35a6a387b7eda5da4b4c70b12f5
RANDOM SEED=2020913264

node75.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		: 3000.229
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		: 3000.229
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:       1723480 kB
Buffers:         45084 kB
Cached:         196524 kB
SwapCached:       6320 kB
Active:         182356 kB
Inactive:        88480 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1723480 kB
SwapTotal:     4192956 kB
SwapFree:      4180584 kB
Dirty:           22972 kB
Writeback:           0 kB
Mapped:          37036 kB
Slab:            45364 kB
Committed_AS:  4184952 kB
PageTables:       3328 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= 66512 MiB
End job on node75 at 2008-07-03 06:14:53