Trace number 1103087

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-noprobe 2008-06-27UNSAT 2.39764 2.41494

DiagnosticValue
ASSIGNMENTS7018
CHECKS2083480

General information on the benchmark

Namecsp/tightness0.8/
normalized-rand-2-40-80-103-800-83_ext.xml
MD5SUM76f8d78401c9e50636602605612f7816
Bench Category2-ARY-EXT (binary constraints in extension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark2.00469
Satisfiable
(Un)Satisfiability was proved
Number of variables40
Number of constraints103
Maximum constraint arity2
Maximum domain size80
Number of constraints which are defined in extension103
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

0.18/0.20	c mistral-prime version 1.313
2.37/2.40	s UNSATISFIABLE
2.37/2.40	d CHECKS 2083479
2.37/2.40	d ASSIGNMENTS 7018

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-1103087-1215300376/watcher-1103087-1215300376 -o /tmp/evaluation-result-1103087-1215300376/solver-1103087-1215300376 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/xsolve HOME/instance-1103087-1215300376.xml -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 4/81 27526
/proc/meminfo: memFree=1782728/2055920 swapFree=4180540/4192956
[pid=27526] ppid=27524 vsize=820 CPUtime=0
/proc/27526/stat : 27526 (xsolve) R 27524 27526 26858 0 -1 4194304 39 0 0 0 0 0 0 0 19 0 1 0 2009012005 839680 25 996147200 134512640 135239859 4294956208 18446744073709551615 7861028 0 2147483391 4096 0 0 0 0 17 1 0 0
/proc/27526/statm: 205 25 19 177 0 3 0

[startup+0.0887151 s]
/proc/loadavg: 2.00 2.00 2.00 4/81 27526
/proc/meminfo: memFree=1782728/2055920 swapFree=4180540/4192956
[pid=27526] ppid=27524 vsize=6444 CPUtime=0.07
/proc/27526/stat : 27526 (xsolve) R 27524 27526 26858 0 -1 4194304 901 0 0 0 7 0 0 0 18 0 1 0 2009012005 6598656 867 996147200 134512640 135239859 4294956208 18446744073709551615 8296059 0 0 4096 0 0 0 0 17 1 0 0
/proc/27526/statm: 1611 868 350 177 0 514 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 6444

[startup+0.102712 s]
/proc/loadavg: 2.00 2.00 2.00 4/81 27526
/proc/meminfo: memFree=1782728/2055920 swapFree=4180540/4192956
[pid=27526] ppid=27524 vsize=6712 CPUtime=0.08
/proc/27526/stat : 27526 (xsolve) R 27524 27526 26858 0 -1 4194304 984 0 0 0 8 0 0 0 18 0 1 0 2009012005 6873088 950 996147200 134512640 135239859 4294956208 18446744073709551615 8296059 0 0 4096 0 0 0 0 17 1 0 0
/proc/27526/statm: 1678 950 350 177 0 581 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 6712

[startup+0.301747 s]
/proc/loadavg: 2.00 2.00 2.00 4/81 27526
/proc/meminfo: memFree=1782728/2055920 swapFree=4180540/4192956
[pid=27526] ppid=27524 vsize=7772 CPUtime=0.28
/proc/27526/stat : 27526 (xsolve) R 27524 27526 26858 0 -1 4194304 1283 0 0 0 28 0 0 0 19 0 1 0 2009012005 7958528 1249 996147200 134512640 135239859 4294956208 18446744073709551615 135095781 0 0 4096 0 0 0 0 17 1 0 0
/proc/27526/statm: 1943 1249 386 177 0 846 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 7772

[startup+0.702818 s]
/proc/loadavg: 2.00 2.00 2.00 4/81 27526
/proc/meminfo: memFree=1782728/2055920 swapFree=4180540/4192956
[pid=27526] ppid=27524 vsize=7772 CPUtime=0.68
/proc/27526/stat : 27526 (xsolve) R 27524 27526 26858 0 -1 4194304 1283 0 0 0 68 0 0 0 23 0 1 0 2009012005 7958528 1249 996147200 134512640 135239859 4294956208 18446744073709551615 135095744 0 0 4096 0 0 0 0 17 1 0 0
/proc/27526/statm: 1943 1249 386 177 0 846 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 7772

[startup+1.50196 s]
/proc/loadavg: 2.00 2.00 2.00 3/82 27527
/proc/meminfo: memFree=1779200/2055920 swapFree=4180540/4192956
[pid=27526] ppid=27524 vsize=7776 CPUtime=1.48
/proc/27526/stat : 27526 (xsolve) R 27524 27526 26858 0 -1 4194304 1284 0 0 0 148 0 0 0 25 0 1 0 2009012005 7962624 1250 996147200 134512640 135239859 4294956208 18446744073709551615 135103300 0 0 4096 0 0 0 0 17 1 0 0
/proc/27526/statm: 1944 1250 386 177 0 847 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 7776

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

[startup+1.90203 s]
/proc/loadavg: 2.00 2.00 2.00 3/82 27527
/proc/meminfo: memFree=1779200/2055920 swapFree=4180540/4192956
[pid=27526] ppid=27524 vsize=7776 CPUtime=1.87
/proc/27526/stat : 27526 (xsolve) R 27524 27526 26858 0 -1 4194304 1284 0 0 0 187 0 0 0 25 0 1 0 2009012005 7962624 1250 996147200 134512640 135239859 4294956208 18446744073709551615 135015822 0 0 4096 0 0 0 0 17 1 0 0
/proc/27526/statm: 1944 1250 386 177 0 847 0
Current children cumulated CPU time (s) 1.87
Current children cumulated vsize (KiB) 7776

[startup+2.3011 s]
/proc/loadavg: 2.00 2.00 2.00 3/82 27527
/proc/meminfo: memFree=1779136/2055920 swapFree=4180540/4192956
[pid=27526] ppid=27524 vsize=7776 CPUtime=2.27
/proc/27526/stat : 27526 (xsolve) R 27524 27526 26858 0 -1 4194304 1284 0 0 0 227 0 0 0 25 0 1 0 2009012005 7962624 1250 996147200 134512640 135239859 4294956208 18446744073709551615 135095780 0 0 4096 0 0 0 0 17 1 0 0
/proc/27526/statm: 1944 1250 386 177 0 847 0
Current children cumulated CPU time (s) 2.27
Current children cumulated vsize (KiB) 7776

[startup+2.40112 s]
/proc/loadavg: 2.00 2.00 2.00 3/82 27527
/proc/meminfo: memFree=1779136/2055920 swapFree=4180540/4192956
[pid=27526] ppid=27524 vsize=7780 CPUtime=2.37
/proc/27526/stat : 27526 (xsolve) R 27524 27526 26858 0 -1 4194304 1285 0 0 0 237 0 0 0 25 0 1 0 2009012005 7966720 1251 996147200 134512640 135239859 4294956208 18446744073709551615 135019113 0 0 4096 0 0 0 0 17 1 0 0
/proc/27526/statm: 1945 1251 386 177 0 848 0
Current children cumulated CPU time (s) 2.37
Current children cumulated vsize (KiB) 7780

Child status: 0
Real time (s): 2.41494
CPU time (s): 2.39764
CPU user time (s): 2.38764
CPU system time (s): 0.009998
CPU usage (%): 99.2834
Max. virtual memory (cumulated for all children) (KiB): 7780

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.38764
system time used= 0.009998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1301
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= 31

runsolver used 0.002999 second user time and 0.016997 second system time

The end

Launcher Data (download as text)

Begin job on node18 at 2008-07-06 01:26:16
IDJOB=1103087
IDBENCH=60270
IDSOLVER=343
FILE ID=node18/1103087-1215300376
PBS_JOBID= 7882397
Free space on /tmp= 66556 MiB

SOLVER NAME= MDG-noprobe 2008-06-27
BENCH NAME= CPAI08/csp/tightness0.8/normalized-rand-2-40-80-103-800-83_ext.xml
COMMAND LINE= HOME/xsolve BENCHNAME -heu dom/wdeg -res no 
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1103087-1215300376/watcher-1103087-1215300376 -o /tmp/evaluation-result-1103087-1215300376/solver-1103087-1215300376 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/xsolve HOME/instance-1103087-1215300376.xml -heu dom/wdeg -res no 

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= 76f8d78401c9e50636602605612f7816
RANDOM SEED=391406858

node18.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		: 3000.268
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	: 5931.00
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		: 3000.268
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:       1783208 kB
Buffers:         40936 kB
Cached:         155964 kB
SwapCached:       6012 kB
Active:         150480 kB
Inactive:        67848 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1783208 kB
SwapTotal:     4192956 kB
SwapFree:      4180540 kB
Dirty:            1768 kB
Writeback:           0 kB
Mapped:          37708 kB
Slab:            39692 kB
Committed_AS:  3631284 kB
PageTables:       1816 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= 66556 MiB
End job on node18 at 2008-07-06 01:26:19