Trace number 1080250

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 10.9203 10.9654

DiagnosticValue
ASSIGNMENTS40564
CHECKS5350570

General information on the benchmark

Namecsp/rand-3-20-20/
normalized-rand-3-20-20-60-632-18_ext.xml
MD5SUMd0723849d67084a75f9aabd36744eddc
Bench CategoryN-ARY-EXT (n-ary constraints in extension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark13.6269
Satisfiable
(Un)Satisfiability was proved
Number of variables20
Number of constraints55
Maximum constraint arity3
Maximum domain size20
Number of constraints which are defined in extension55
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

0.09/0.10	c mistral-prime version 1.313
0.09/0.10	c 
0.09/0.10	c Parsing xml file
0.09/0.10	c          domains...............     0	(1 domains)
0.09/0.10	c          variables.............     0	(20 variables)
0.09/0.10	c          relations.............  0.15	(55 relations)
0.09/0.16	c          constraints...........5.5565e-18	(55 constraints)
0.09/0.16	c Parsing time:   0.15
0.09/0.16	c
0.09/0.16	c Building model
0.09/0.17	c         0 constants
0.09/0.17	c         0 Boolean variables    (+0)
0.09/0.17	c         0 range variables      (+0)
0.09/0.17	c         0 domain (b) variables (+0)
0.09/0.17	c        20 domain (l) variables (+0)
0.09/0.17	c        55 constraints          (+0)
0.09/0.17	c         0 values 
0.09/0.17	c Building time:   0.01
0.09/0.17	c
0.09/0.17	c Solving instance
0.09/0.17	c          heuristic = dom/wdeg
0.09/0.17	c          Randomized probing iteration = 100
0.09/0.17	c          probing limit = 30
0.09/0.17	c          level based weights = no
0.09/0.17	c          impact probing = no
0.09/0.17	c          restart policy = No restart
0.09/0.17	c          probing ..........  0.52
0.59/0.69	c          Probing Nodes  3542
0.59/0.69	c          final run  10.22
10.85/10.95	c Solving time:  10.74
10.85/10.95	c
10.85/10.95	s UNSATISFIABLE
10.85/10.95	d CHECKS 5350566
10.85/10.95	d ASSIGNMENTS 40564

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-1080250-1215212464/watcher-1080250-1215212464 -o /tmp/evaluation-result-1080250-1215212464/solver-1080250-1215212464 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/xsolve HOME/instance-1080250-1215212464.xml -v 1 -rs 812356341 -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: 1.92 1.98 1.99 4/75 11745
/proc/meminfo: memFree=1412120/2055920 swapFree=4169368/4192956
[pid=11745] ppid=11743 vsize=4452 CPUtime=0
/proc/11745/stat : 11745 (xsolve) R 11743 11745 11017 0 -1 4194304 284 0 0 0 0 0 0 0 20 0 1 0 255720241 4558848 251 996147200 134512640 135239859 4294956144 18446744073709551615 6514567 0 0 4096 0 0 0 0 17 1 0 0
/proc/11745/statm: 1113 251 215 177 0 16 0

[startup+0.0579109 s]
/proc/loadavg: 1.92 1.98 1.99 4/75 11745
/proc/meminfo: memFree=1412120/2055920 swapFree=4169368/4192956
[pid=11745] ppid=11743 vsize=5516 CPUtime=0.05
/proc/11745/stat : 11745 (xsolve) R 11743 11745 11017 0 -1 4194304 707 0 0 0 5 0 0 0 20 0 1 0 255720241 5648384 673 996147200 134512640 135239859 4294956144 18446744073709551615 134579055 0 0 4096 0 0 0 0 17 0 0 0
/proc/11745/statm: 1379 673 373 177 0 282 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 5516

[startup+0.101871 s]
/proc/loadavg: 1.92 1.98 1.99 4/75 11745
/proc/meminfo: memFree=1412120/2055920 swapFree=4169368/4192956
[pid=11745] ppid=11743 vsize=6448 CPUtime=0.09
/proc/11745/stat : 11745 (xsolve) R 11743 11745 11017 0 -1 4194304 918 0 0 0 9 0 0 0 20 0 1 0 255720241 6602752 884 996147200 134512640 135239859 4294956144 18446744073709551615 134670962 0 0 4096 0 0 0 0 17 0 0 0
/proc/11745/statm: 1612 884 373 177 0 515 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 6448

[startup+0.301889 s]
/proc/loadavg: 1.92 1.98 1.99 4/75 11745
/proc/meminfo: memFree=1412120/2055920 swapFree=4169368/4192956
[pid=11745] ppid=11743 vsize=7776 CPUtime=0.29
/proc/11745/stat : 11745 (xsolve) R 11743 11745 11017 0 -1 4194304 1293 0 0 0 29 0 0 0 22 0 1 0 255720241 7962624 1259 996147200 134512640 135239859 4294956144 18446744073709551615 135013792 0 0 4096 0 0 0 0 17 0 0 0
/proc/11745/statm: 1944 1259 410 177 0 847 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 7776

[startup+0.701931 s]
/proc/loadavg: 1.92 1.98 1.99 4/75 11745
/proc/meminfo: memFree=1412120/2055920 swapFree=4169368/4192956
[pid=11745] ppid=11743 vsize=7776 CPUtime=0.69
/proc/11745/stat : 11745 (xsolve) R 11743 11745 11017 0 -1 4194304 1294 0 0 0 69 0 0 0 25 0 1 0 255720241 7962624 1260 996147200 134512640 135239859 4294956144 18446744073709551615 134819994 0 0 4096 0 0 0 0 17 0 0 0
/proc/11745/statm: 1944 1260 411 177 0 847 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 7776

[startup+1.50202 s]
/proc/loadavg: 1.92 1.98 1.99 3/76 11746
/proc/meminfo: memFree=1408656/2055920 swapFree=4169368/4192956
[pid=11745] ppid=11743 vsize=7776 CPUtime=1.48
/proc/11745/stat : 11745 (xsolve) R 11743 11745 11017 0 -1 4194304 1294 0 0 0 148 0 0 0 25 0 1 0 255720241 7962624 1260 996147200 134512640 135239859 4294956144 18446744073709551615 135016026 0 0 4096 0 0 0 0 17 0 0 0
/proc/11745/statm: 1944 1260 411 177 0 847 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 7776

[startup+3.10219 s]
/proc/loadavg: 1.92 1.98 1.99 3/76 11746
/proc/meminfo: memFree=1408528/2055920 swapFree=4169368/4192956
[pid=11745] ppid=11743 vsize=7776 CPUtime=3.08
/proc/11745/stat : 11745 (xsolve) R 11743 11745 11017 0 -1 4194304 1294 0 0 0 308 0 0 0 25 0 1 0 255720241 7962624 1260 996147200 134512640 135239859 4294956144 18446744073709551615 135095222 0 0 4096 0 0 0 0 17 0 0 0
/proc/11745/statm: 1944 1260 411 177 0 847 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 7776

[startup+6.30153 s]
/proc/loadavg: 1.93 1.98 1.99 3/76 11746
/proc/meminfo: memFree=1408472/2055920 swapFree=4169368/4192956
[pid=11745] ppid=11743 vsize=7776 CPUtime=6.27
/proc/11745/stat : 11745 (xsolve) R 11743 11745 11017 0 -1 4194304 1294 0 0 0 627 0 0 0 25 0 1 0 255720241 7962624 1260 996147200 134512640 135239859 4294956144 18446744073709551615 135097003 0 0 4096 0 0 0 0 17 0 0 0
/proc/11745/statm: 1944 1260 411 177 0 847 0
Current children cumulated CPU time (s) 6.27
Current children cumulated vsize (KiB) 7776

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

[startup+9.50187 s]
/proc/loadavg: 1.93 1.98 1.99 3/76 11746
/proc/meminfo: memFree=1408472/2055920 swapFree=4169368/4192956
[pid=11745] ppid=11743 vsize=7776 CPUtime=9.45
/proc/11745/stat : 11745 (xsolve) R 11743 11745 11017 0 -1 4194304 1294 0 0 0 945 0 0 0 25 0 1 0 255720241 7962624 1260 996147200 134512640 135239859 4294956144 18446744073709551615 135095218 0 0 4096 0 0 0 0 17 0 0 0
/proc/11745/statm: 1944 1260 411 177 0 847 0
Current children cumulated CPU time (s) 9.45
Current children cumulated vsize (KiB) 7776

[startup+10.302 s]
/proc/loadavg: 1.93 1.98 1.99 3/76 11746
/proc/meminfo: memFree=1408472/2055920 swapFree=4169368/4192956
[pid=11745] ppid=11743 vsize=7776 CPUtime=10.25
/proc/11745/stat : 11745 (xsolve) R 11743 11745 11017 0 -1 4194304 1294 0 0 0 1025 0 0 0 25 0 1 0 255720241 7962624 1260 996147200 134512640 135239859 4294956144 18446744073709551615 134819996 0 0 4096 0 0 0 0 17 0 0 0
/proc/11745/statm: 1944 1260 411 177 0 847 0
Current children cumulated CPU time (s) 10.25
Current children cumulated vsize (KiB) 7776

[startup+10.702 s]
/proc/loadavg: 1.93 1.98 1.99 3/76 11746
/proc/meminfo: memFree=1408472/2055920 swapFree=4169368/4192956
[pid=11745] ppid=11743 vsize=7776 CPUtime=10.65
/proc/11745/stat : 11745 (xsolve) R 11743 11745 11017 0 -1 4194304 1294 0 0 0 1065 0 0 0 25 0 1 0 255720241 7962624 1260 996147200 134512640 135239859 4294956144 18446744073709551615 135013763 0 0 4096 0 0 0 0 17 0 0 0
/proc/11745/statm: 1944 1260 411 177 0 847 0
Current children cumulated CPU time (s) 10.65
Current children cumulated vsize (KiB) 7776

[startup+10.902 s]
/proc/loadavg: 1.93 1.98 1.99 3/76 11746
/proc/meminfo: memFree=1408408/2055920 swapFree=4169368/4192956
[pid=11745] ppid=11743 vsize=7776 CPUtime=10.85
/proc/11745/stat : 11745 (xsolve) R 11743 11745 11017 0 -1 4194304 1294 0 0 0 1085 0 0 0 25 0 1 0 255720241 7962624 1260 996147200 134512640 135239859 4294956144 18446744073709551615 135103360 0 0 4096 0 0 0 0 17 0 0 0
/proc/11745/statm: 1944 1260 411 177 0 847 0
Current children cumulated CPU time (s) 10.85
Current children cumulated vsize (KiB) 7776

Child status: 0
Real time (s): 10.9654
CPU time (s): 10.9203
CPU user time (s): 10.9113
CPU system time (s): 0.008998
CPU usage (%): 99.5887
Max. virtual memory (cumulated for all children) (KiB): 7776

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 10.9113
system time used= 0.008998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1306
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= 177

runsolver used 0.014997 second user time and 0.033994 second system time

The end

Launcher Data (download as text)

Begin job on node82 at 2008-07-05 01:01:04
IDJOB=1080250
IDBENCH=56947
IDSOLVER=342
FILE ID=node82/1080250-1215212464
PBS_JOBID= 7881755
Free space on /tmp= 66456 MiB

SOLVER NAME= MDG-probe 2008-06-27
BENCH NAME= CPAI08/csp/rand-3-20-20/normalized-rand-3-20-20-60-632-18_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-1080250-1215212464/watcher-1080250-1215212464 -o /tmp/evaluation-result-1080250-1215212464/solver-1080250-1215212464 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/xsolve HOME/instance-1080250-1215212464.xml -v 1 -rs 812356341 -probe 1 -ph 0 -heu dom/wdeg -res no

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= d0723849d67084a75f9aabd36744eddc
RANDOM SEED=812356341

node82.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		: 3000.239
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		: 3000.239
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:       1412600 kB
Buffers:         83756 kB
Cached:         424540 kB
SwapCached:      17956 kB
Active:         301076 kB
Inactive:       291508 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1412600 kB
SwapTotal:     4192956 kB
SwapFree:      4169368 kB
Dirty:            2172 kB
Writeback:           0 kB
Mapped:          78904 kB
Slab:            35908 kB
Committed_AS:   660520 kB
PageTables:       1924 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66456 MiB
End job on node82 at 2008-07-05 01:01:15