Trace number 1084830

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 6.06308 6.07571

DiagnosticValue
ASSIGNMENTS20500
CHECKS875391

General information on the benchmark

Namecsp/rand-8-20-5/
normalized-rand-8-20-5-18-800-4_ext.xml
MD5SUMd3f44c49896eef0a554a753221d829d8
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 benchmark5.60415
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.............  2.75	(18 relations)
2.68/2.77	c          constraints...........  0.01	(18 constraints)
2.68/2.77	c Parsing time:   2.76
2.68/2.77	c
2.68/2.77	c Building model
2.78/2.82	c         0 constants
2.78/2.82	c         0 Boolean variables    (+0)
2.78/2.82	c         0 range variables      (+0)
2.78/2.82	c         0 domain (b) variables (+0)
2.78/2.82	c        20 domain (l) variables (+0)
2.78/2.82	c        18 constraints          (+0)
2.78/2.82	c         0 values 
2.78/2.82	c Building time:   0.05
2.78/2.82	c
2.78/2.82	c Solving instance
2.78/2.82	c          heuristic = dom/wdeg
2.78/2.82	c          Randomized probing iteration = 100
2.78/2.82	c          probing limit = 30
2.78/2.82	c          level based weights = no
2.78/2.82	c          impact probing = no
2.78/2.82	c          restart policy = No restart
2.78/2.82	c          probing ..........  0.51
3.29/3.33	c          Probing Nodes  4039
3.29/3.33	c          final run   2.65
5.88/5.99	c Solving time:   3.16
5.88/5.99	c
5.88/5.99	s SATISFIABLE
5.88/5.99	v 2 1 0 0 2 1 1 2 4 0 4 3 4 2 4 4 2 4 2 1
5.88/5.99	d CHECKS 875391
5.88/5.99	d ASSIGNMENTS 20500

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-1084830-1215232157/watcher-1084830-1215232157 -o /tmp/evaluation-result-1084830-1215232157/solver-1084830-1215232157 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/xsolve HOME/instance-1084830-1215232157.xml -v 1 -rs 1416599974 -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: 2.01 2.06 2.01 4/87 14664
/proc/meminfo: memFree=1399576/2055920 swapFree=4179164/4192956
[pid=14664] ppid=14662 vsize=4584 CPUtime=0
/proc/14664/stat : 14664 (xsolve) R 14662 14664 11600 0 -1 4194304 395 0 0 0 0 0 0 0 18 0 1 0 134896513 4694016 361 996147200 134512640 135239859 4294956144 18446744073709551615 4159782128 0 0 4096 0 0 0 0 17 0 0 0
/proc/14664/statm: 1146 375 322 177 0 49 0

[startup+0.0338371 s]
/proc/loadavg: 2.01 2.06 2.01 4/87 14664
/proc/meminfo: memFree=1399576/2055920 swapFree=4179164/4192956
[pid=14664] ppid=14662 vsize=5428 CPUtime=0.02
/proc/14664/stat : 14664 (xsolve) R 14662 14664 11600 0 -1 4194304 618 0 0 0 2 0 0 0 18 0 1 0 134896513 5558272 584 996147200 134512640 135239859 4294956144 18446744073709551615 12203643 0 0 4096 0 0 0 0 17 0 0 0
/proc/14664/statm: 1357 584 373 177 0 260 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 5428

[startup+0.101844 s]
/proc/loadavg: 2.01 2.06 2.01 4/87 14664
/proc/meminfo: memFree=1399576/2055920 swapFree=4179164/4192956
[pid=14664] ppid=14662 vsize=6880 CPUtime=0.09
/proc/14664/stat : 14664 (xsolve) R 14662 14664 11600 0 -1 4194304 992 0 0 0 9 0 0 0 18 0 1 0 134896513 7045120 958 996147200 134512640 135239859 4294956144 18446744073709551615 12203643 0 0 4096 0 0 0 0 17 0 0 0
/proc/14664/statm: 1720 958 373 177 0 623 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 6880

[startup+0.301867 s]
/proc/loadavg: 2.01 2.06 2.01 4/87 14664
/proc/meminfo: memFree=1399576/2055920 swapFree=4179164/4192956
[pid=14664] ppid=14662 vsize=11144 CPUtime=0.29
/proc/14664/stat : 14664 (xsolve) R 14662 14664 11600 0 -1 4194304 2094 0 0 0 28 1 0 0 19 0 1 0 134896513 11411456 2060 996147200 134512640 135239859 4294956144 18446744073709551615 12203643 0 0 4096 0 0 0 0 17 0 0 0
/proc/14664/statm: 2786 2060 373 177 0 1689 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 11144

[startup+0.701914 s]
/proc/loadavg: 2.01 2.06 2.01 4/87 14664
/proc/meminfo: memFree=1399576/2055920 swapFree=4179164/4192956
[pid=14664] ppid=14662 vsize=20120 CPUtime=0.69
/proc/14664/stat : 14664 (xsolve) R 14662 14664 11600 0 -1 4194304 4297 0 0 0 67 2 0 0 23 0 1 0 134896513 20602880 4263 996147200 134512640 135239859 4294956144 18446744073709551615 12203643 0 0 4096 0 0 0 0 17 0 0 0
/proc/14664/statm: 5030 4263 373 177 0 3933 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 20120

[startup+1.502 s]
/proc/loadavg: 2.01 2.06 2.01 3/88 14665
/proc/meminfo: memFree=1377232/2055920 swapFree=4179164/4192956
[pid=14664] ppid=14662 vsize=37628 CPUtime=1.49
/proc/14664/stat : 14664 (xsolve) R 14662 14664 11600 0 -1 4194304 8699 0 0 0 145 4 0 0 25 0 1 0 134896513 38531072 8665 996147200 134512640 135239859 4294956144 18446744073709551615 12203643 0 0 4096 0 0 0 0 17 0 0 0
/proc/14664/statm: 9407 8665 373 177 0 8310 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 37628

[startup+3.10118 s]
/proc/loadavg: 2.01 2.06 2.01 3/88 14665
/proc/meminfo: memFree=1352976/2055920 swapFree=4179164/4192956
[pid=14664] ppid=14662 vsize=66140 CPUtime=3.08
/proc/14664/stat : 14664 (xsolve) R 14662 14664 11600 0 -1 4194304 15902 0 0 0 299 9 0 0 25 0 1 0 134896513 67727360 15868 996147200 134512640 135239859 4294956144 18446744073709551615 134820011 0 0 4096 0 0 0 0 17 0 0 0
/proc/14664/statm: 16535 15868 409 177 0 15438 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 66140

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

[startup+4.70136 s]
/proc/loadavg: 2.01 2.05 2.01 3/88 14665
/proc/meminfo: memFree=1336528/2055920 swapFree=4179164/4192956
[pid=14664] ppid=14662 vsize=66140 CPUtime=4.68
/proc/14664/stat : 14664 (xsolve) R 14662 14664 11600 0 -1 4194304 15904 0 0 0 459 9 0 0 25 0 1 0 134896513 67727360 15870 996147200 134512640 135239859 4294956144 18446744073709551615 134789522 0 0 4096 0 0 0 0 17 0 0 0
/proc/14664/statm: 16535 15870 411 177 0 15438 0
Current children cumulated CPU time (s) 4.68
Current children cumulated vsize (KiB) 66140

[startup+5.50645 s]
/proc/loadavg: 2.01 2.05 2.01 3/88 14665
/proc/meminfo: memFree=1336656/2055920 swapFree=4179164/4192956
[pid=14664] ppid=14662 vsize=66140 CPUtime=5.49
/proc/14664/stat : 14664 (xsolve) R 14662 14664 11600 0 -1 4194304 15904 0 0 0 540 9 0 0 25 0 1 0 134896513 67727360 15870 996147200 134512640 135239859 4294956144 18446744073709551615 135013729 0 0 4096 0 0 0 0 17 0 0 0
/proc/14664/statm: 16535 15870 411 177 0 15438 0
Current children cumulated CPU time (s) 5.49
Current children cumulated vsize (KiB) 66140

[startup+5.9015 s]
/proc/loadavg: 2.01 2.05 2.01 3/88 14665
/proc/meminfo: memFree=1336656/2055920 swapFree=4179164/4192956
[pid=14664] ppid=14662 vsize=66140 CPUtime=5.88
/proc/14664/stat : 14664 (xsolve) R 14662 14664 11600 0 -1 4194304 15904 0 0 0 579 9 0 0 25 0 1 0 134896513 67727360 15870 996147200 134512640 135239859 4294956144 18446744073709551615 134819996 0 0 4096 0 0 0 0 17 0 0 0
/proc/14664/statm: 16535 15870 411 177 0 15438 0
Current children cumulated CPU time (s) 5.88
Current children cumulated vsize (KiB) 66140

[startup+6.00151 s]
/proc/loadavg: 2.01 2.05 2.01 3/88 14665
/proc/meminfo: memFree=1336656/2055920 swapFree=4179164/4192956
[pid=14664] ppid=14662 vsize=65524 CPUtime=5.98
/proc/14664/stat : 14664 (xsolve) R 14662 14664 11600 0 -1 4194304 15915 0 0 0 589 9 0 0 25 0 1 0 134896513 67096576 15727 996147200 134512640 135239859 4294956144 18446744073709551615 12199838 0 0 4096 0 0 0 0 17 0 0 0
/proc/14664/statm: 16381 15727 422 177 0 15284 0
Current children cumulated CPU time (s) 5.98
Current children cumulated vsize (KiB) 65524

Child status: 0
Real time (s): 6.07571
CPU time (s): 6.06308
CPU user time (s): 5.96009
CPU system time (s): 0.102984
CPU usage (%): 99.792
Max. virtual memory (cumulated for all children) (KiB): 66140

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 5.96009
system time used= 0.102984
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 15916
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= 181

runsolver used 0.008998 second user time and 0.029995 second system time

The end

Launcher Data (download as text)

Begin job on node76 at 2008-07-05 06:29:19
IDJOB=1084830
IDBENCH=57585
IDSOLVER=342
FILE ID=node76/1084830-1215232157
PBS_JOBID= 7881791
Free space on /tmp= 66440 MiB

SOLVER NAME= MDG-probe 2008-06-27
BENCH NAME= CPAI08/csp/rand-8-20-5/normalized-rand-8-20-5-18-800-4_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-1084830-1215232157/watcher-1084830-1215232157 -o /tmp/evaluation-result-1084830-1215232157/solver-1084830-1215232157 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/xsolve HOME/instance-1084830-1215232157.xml -v 1 -rs 1416599974 -probe 1 -ph 0 -heu dom/wdeg -res no

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= d3f44c49896eef0a554a753221d829d8
RANDOM SEED=1416599974

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:       1399992 kB
Buffers:         27496 kB
Cached:         232308 kB
SwapCached:       7640 kB
Active:         504116 kB
Inactive:        85576 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1399992 kB
SwapTotal:     4192956 kB
SwapFree:      4179164 kB
Dirty:           22892 kB
Writeback:           0 kB
Mapped:         345972 kB
Slab:            50584 kB
Committed_AS:  1220456 kB
PageTables:       2676 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= 66440 MiB
End job on node76 at 2008-07-05 06:29:25