Trace number 1080227

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 17.8193 17.9632

DiagnosticValue
ASSIGNMENTS61149
CHECKS8198580

General information on the benchmark

Namecsp/rand-3-20-20/
normalized-rand-3-20-20-60-632-44_ext.xml
MD5SUMde807c80f8f5ecdb550bc5040d40fc98
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 benchmark16.4215
Satisfiable
(Un)Satisfiability was proved
Number of variables20
Number of constraints58
Maximum constraint arity3
Maximum domain size20
Number of constraints which are defined in extension58
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

0.00/0.01	c mistral-prime version 1.313
0.00/0.01	c 
0.00/0.01	c Parsing xml file
0.00/0.01	c          domains...............     0	(1 domains)
0.00/0.01	c          variables.............     0	(20 variables)
0.09/0.11	c          relations.............  0.18	(58 relations)
0.09/0.19	c          constraints...........6.6678e-18	(58 constraints)
0.09/0.19	c Parsing time:   0.18
0.09/0.19	c
0.09/0.19	c Building model
0.18/0.20	c         0 constants
0.18/0.20	c         0 Boolean variables    (+0)
0.18/0.20	c         0 range variables      (+0)
0.18/0.20	c         0 domain (b) variables (+0)
0.18/0.20	c        20 domain (l) variables (+0)
0.18/0.20	c        58 constraints          (+0)
0.18/0.20	c         0 values 
0.18/0.20	c Building time:   0.01
0.18/0.20	c
0.18/0.20	c Solving instance
0.18/0.20	c          heuristic = dom/wdeg
0.18/0.20	c          Randomized probing iteration = 100
0.18/0.20	c          probing limit = 30
0.18/0.20	c          level based weights = no
0.18/0.20	c          impact probing = no
0.18/0.20	c          restart policy = No restart
0.18/0.20	c          probing ..........  0.53
0.68/0.74	c          Probing Nodes  3550
0.68/0.74	c          final run  17.08
17.75/17.94	c Solving time:  17.61
17.75/17.94	c
17.75/17.94	s UNSATISFIABLE
17.75/17.94	d CHECKS 8198584
17.75/17.94	d ASSIGNMENTS 61149

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-1080227-1215212363/watcher-1080227-1215212363 -o /tmp/evaluation-result-1080227-1215212363/solver-1080227-1215212363 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/xsolve HOME/instance-1080227-1215212363.xml -v 1 -rs 177145765 -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: 2.05 1.99 1.99 4/73 15244
/proc/meminfo: memFree=1720216/2055920 swapFree=4180080/4192956
[pid=15244] ppid=15242 vsize=820 CPUtime=0
/proc/15244/stat : 15244 (xsolve) R 15242 15244 14877 0 -1 4194304 39 0 0 0 0 0 0 0 19 0 1 0 2000210376 839680 25 996147200 134512640 135239859 4294956144 18446744073709551615 1172260 0 2147483391 4096 0 0 0 0 17 1 0 0
/proc/15244/statm: 205 25 19 177 0 3 0

[startup+0.0957201 s]
/proc/loadavg: 2.05 1.99 1.99 4/73 15244
/proc/meminfo: memFree=1720216/2055920 swapFree=4180080/4192956
[pid=15244] ppid=15242 vsize=6060 CPUtime=0.08
/proc/15244/stat : 15244 (xsolve) R 15242 15244 14877 0 -1 4194304 838 0 0 0 8 0 0 0 19 0 1 0 2000210376 6205440 804 996147200 134512640 135239859 4294956144 18446744073709551615 1639388 0 0 4096 0 0 0 0 17 1 0 0
/proc/15244/statm: 1515 804 373 177 0 418 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 6060

[startup+0.101717 s]
/proc/loadavg: 2.05 1.99 1.99 4/73 15244
/proc/meminfo: memFree=1720216/2055920 swapFree=4180080/4192956
[pid=15244] ppid=15242 vsize=6192 CPUtime=0.09
/proc/15244/stat : 15244 (xsolve) R 15242 15244 14877 0 -1 4194304 864 0 0 0 9 0 0 0 19 0 1 0 2000210376 6340608 830 996147200 134512640 135239859 4294956144 18446744073709551615 134579436 0 0 4096 0 0 0 0 17 1 0 0
/proc/15244/statm: 1548 830 373 177 0 451 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 6192

[startup+0.301736 s]
/proc/loadavg: 2.05 1.99 1.99 4/73 15244
/proc/meminfo: memFree=1720216/2055920 swapFree=4180080/4192956
[pid=15244] ppid=15242 vsize=8056 CPUtime=0.28
/proc/15244/stat : 15244 (xsolve) R 15242 15244 14877 0 -1 4194304 1365 0 0 0 28 0 0 0 21 0 1 0 2000210376 8249344 1331 996147200 134512640 135239859 4294956144 18446744073709551615 134821139 0 0 4096 0 0 0 0 17 1 0 0
/proc/15244/statm: 2014 1331 410 177 0 917 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 8056

[startup+0.701769 s]
/proc/loadavg: 2.05 1.99 1.99 4/73 15244
/proc/meminfo: memFree=1720216/2055920 swapFree=4180080/4192956
[pid=15244] ppid=15242 vsize=8056 CPUtime=0.68
/proc/15244/stat : 15244 (xsolve) R 15242 15244 14877 0 -1 4194304 1365 0 0 0 68 0 0 0 25 0 1 0 2000210376 8249344 1331 996147200 134512640 135239859 4294956144 18446744073709551615 134820508 0 0 4096 0 0 0 0 17 1 0 0
/proc/15244/statm: 2014 1331 410 177 0 917 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 8056

[startup+1.50184 s]
/proc/loadavg: 2.05 1.99 1.99 3/74 15245
/proc/meminfo: memFree=1716368/2055920 swapFree=4180080/4192956
[pid=15244] ppid=15242 vsize=8056 CPUtime=1.47
/proc/15244/stat : 15244 (xsolve) R 15242 15244 14877 0 -1 4194304 1366 0 0 0 147 0 0 0 25 0 1 0 2000210376 8249344 1332 996147200 134512640 135239859 4294956144 18446744073709551615 135013785 0 0 4096 0 0 0 0 17 1 0 0
/proc/15244/statm: 2014 1332 411 177 0 917 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 8056

[startup+3.10298 s]
/proc/loadavg: 2.05 1.99 1.99 3/74 15245
/proc/meminfo: memFree=1716112/2055920 swapFree=4180080/4192956
[pid=15244] ppid=15242 vsize=8056 CPUtime=3.06
/proc/15244/stat : 15244 (xsolve) R 15242 15244 14877 0 -1 4194304 1366 0 0 0 306 0 0 0 25 0 1 0 2000210376 8249344 1332 996147200 134512640 135239859 4294956144 18446744073709551615 135096995 0 0 4096 0 0 0 0 17 1 0 0
/proc/15244/statm: 2014 1332 411 177 0 917 0
Current children cumulated CPU time (s) 3.06
Current children cumulated vsize (KiB) 8056

[startup+6.30125 s]
/proc/loadavg: 2.05 1.99 1.99 3/74 15245
/proc/meminfo: memFree=1716048/2055920 swapFree=4180080/4192956
[pid=15244] ppid=15242 vsize=8056 CPUtime=6.24
/proc/15244/stat : 15244 (xsolve) R 15242 15244 14877 0 -1 4194304 1366 0 0 0 624 0 0 0 25 0 1 0 2000210376 8249344 1332 996147200 134512640 135239859 4294956144 18446744073709551615 135097010 0 0 4096 0 0 0 0 17 1 0 0
/proc/15244/statm: 2014 1332 411 177 0 917 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 8056

[startup+12.7018 s]
/proc/loadavg: 2.12 2.01 2.00 3/74 15245
/proc/meminfo: memFree=1715728/2055920 swapFree=4180080/4192956
[pid=15244] ppid=15242 vsize=8056 CPUtime=12.59
/proc/15244/stat : 15244 (xsolve) R 15242 15244 14877 0 -1 4194304 1366 0 0 0 1259 0 0 0 25 0 1 0 2000210376 8249344 1332 996147200 134512640 135239859 4294956144 18446744073709551615 135096998 0 0 4096 0 0 0 0 17 1 0 0
/proc/15244/statm: 2014 1332 411 177 0 917 0
Current children cumulated CPU time (s) 12.59
Current children cumulated vsize (KiB) 8056

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

[startup+15.9011 s]
/proc/loadavg: 2.12 2.01 2.00 3/74 15245
/proc/meminfo: memFree=1715600/2055920 swapFree=4180080/4192956
[pid=15244] ppid=15242 vsize=8056 CPUtime=15.76
/proc/15244/stat : 15244 (xsolve) R 15242 15244 14877 0 -1 4194304 1366 0 0 0 1576 0 0 0 25 0 1 0 2000210376 8249344 1332 996147200 134512640 135239859 4294956144 18446744073709551615 134789574 0 0 4096 0 0 0 0 17 1 0 0
/proc/15244/statm: 2014 1332 411 177 0 917 0
Current children cumulated CPU time (s) 15.76
Current children cumulated vsize (KiB) 8056

[startup+16.7011 s]
/proc/loadavg: 2.12 2.01 2.00 3/74 15245
/proc/meminfo: memFree=1715536/2055920 swapFree=4180080/4192956
[pid=15244] ppid=15242 vsize=8056 CPUtime=16.56
/proc/15244/stat : 15244 (xsolve) R 15242 15244 14877 0 -1 4194304 1366 0 0 0 1656 0 0 0 25 0 1 0 2000210376 8249344 1332 996147200 134512640 135239859 4294956144 18446744073709551615 135013794 0 0 4096 0 0 0 0 17 1 0 0
/proc/15244/statm: 2014 1332 411 177 0 917 0
Current children cumulated CPU time (s) 16.56
Current children cumulated vsize (KiB) 8056

[startup+17.5012 s]
/proc/loadavg: 2.11 2.01 2.00 3/74 15245
/proc/meminfo: memFree=1715472/2055920 swapFree=4180080/4192956
[pid=15244] ppid=15242 vsize=8056 CPUtime=17.35
/proc/15244/stat : 15244 (xsolve) R 15242 15244 14877 0 -1 4194304 1366 0 0 0 1735 0 0 0 25 0 1 0 2000210376 8249344 1332 996147200 134512640 135239859 4294956144 18446744073709551615 134820011 0 0 4096 0 0 0 0 17 1 0 0
/proc/15244/statm: 2014 1332 411 177 0 917 0
Current children cumulated CPU time (s) 17.35
Current children cumulated vsize (KiB) 8056

[startup+17.9013 s]
/proc/loadavg: 2.11 2.01 2.00 3/74 15245
/proc/meminfo: memFree=1715472/2055920 swapFree=4180080/4192956
[pid=15244] ppid=15242 vsize=8056 CPUtime=17.75
/proc/15244/stat : 15244 (xsolve) R 15242 15244 14877 0 -1 4194304 1366 0 0 0 1775 0 0 0 25 0 1 0 2000210376 8249344 1332 996147200 134512640 135239859 4294956144 18446744073709551615 134789577 0 0 4096 0 0 0 0 17 1 0 0
/proc/15244/statm: 2014 1332 411 177 0 917 0
Current children cumulated CPU time (s) 17.75
Current children cumulated vsize (KiB) 8056

Child status: 0
Real time (s): 17.9632
CPU time (s): 17.8193
CPU user time (s): 17.8123
CPU system time (s): 0.006998
CPU usage (%): 99.1987
Max. virtual memory (cumulated for all children) (KiB): 8056

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 17.8123
system time used= 0.006998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1378
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= 432

runsolver used 0.019996 second user time and 0.053991 second system time

The end

Launcher Data (download as text)

Begin job on node31 at 2008-07-05 00:59:23
IDJOB=1080227
IDBENCH=56946
IDSOLVER=342
FILE ID=node31/1080227-1215212363
PBS_JOBID= 7881780
Free space on /tmp= 66480 MiB

SOLVER NAME= MDG-probe 2008-06-27
BENCH NAME= CPAI08/csp/rand-3-20-20/normalized-rand-3-20-20-60-632-44_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-1080227-1215212363/watcher-1080227-1215212363 -o /tmp/evaluation-result-1080227-1215212363/solver-1080227-1215212363 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/xsolve HOME/instance-1080227-1215212363.xml -v 1 -rs 177145765 -probe 1 -ph 0 -heu dom/wdeg -res no

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= de807c80f8f5ecdb550bc5040d40fc98
RANDOM SEED=177145765

node31.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		: 3000.232
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		: 3000.232
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:       1720696 kB
Buffers:         23508 kB
Cached:         138804 kB
SwapCached:       6260 kB
Active:         239456 kB
Inactive:        44616 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1720696 kB
SwapTotal:     4192956 kB
SwapFree:      4180080 kB
Dirty:            2156 kB
Writeback:           0 kB
Mapped:         127816 kB
Slab:            35936 kB
Committed_AS:  3226632 kB
PageTables:       2192 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= 66476 MiB
End job on node31 at 2008-07-05 00:59:41