Trace number 1071419

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 17.5083 17.5828

DiagnosticValue
ASSIGNMENTS4624
CHECKS8640020

General information on the benchmark

Namecsp/chessboardColoration/
normalized-cc-20-20-2.xml
MD5SUM2344aea19d376a2dc3bf2408a1b627e6
Bench CategoryN-ARY-INT (n-ary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark12.7501
Satisfiable
(Un)Satisfiability was proved
Number of variables400
Number of constraints36100
Maximum constraint arity4
Maximum domain size2
Number of constraints which are defined in extension0
Number of constraints which are defined in intension36100
Global constraints used (with number of constraints)

Solver Data (download as text)

0.00/0.00	c mistral-prime version 1.313
17.22/17.40	s UNSATISFIABLE
17.22/17.40	d CHECKS 8640022
17.22/17.40	d ASSIGNMENTS 4624

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-1071419-1215168970/watcher-1071419-1215168970 -o /tmp/evaluation-result-1071419-1215168970/solver-1071419-1215168970 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/xsolve HOME/instance-1071419-1215168970.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: 1.92 1.98 1.99 4/75 6629
/proc/meminfo: memFree=1801360/2055920 swapFree=4146920/4192956
[pid=6629] ppid=6627 vsize=4584 CPUtime=0
/proc/6629/stat : 6629 (xsolve) R 6627 6629 5142 0 -1 4194304 335 0 0 0 0 0 0 0 18 0 1 0 682022516 4694016 302 996147200 134512640 135239859 4294956208 18446744073709551615 134641245 0 0 4096 0 0 0 0 17 0 0 0
/proc/6629/statm: 1146 310 264 177 0 49 0

[startup+0.0996439 s]
/proc/loadavg: 1.92 1.98 1.99 4/75 6629
/proc/meminfo: memFree=1801360/2055920 swapFree=4146920/4192956
[pid=6629] ppid=6627 vsize=5364 CPUtime=0.09
/proc/6629/stat : 6629 (xsolve) R 6627 6629 5142 0 -1 4194304 664 0 0 0 9 0 0 0 18 0 1 0 682022516 5492736 630 996147200 134512640 135239859 4294956208 18446744073709551615 134933376 0 0 4096 0 0 0 0 17 0 0 0
/proc/6629/statm: 1341 630 368 177 0 244 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5364

[startup+0.101644 s]
/proc/loadavg: 1.92 1.98 1.99 4/75 6629
/proc/meminfo: memFree=1801360/2055920 swapFree=4146920/4192956
[pid=6629] ppid=6627 vsize=5492 CPUtime=0.09
/proc/6629/stat : 6629 (xsolve) R 6627 6629 5142 0 -1 4194304 668 0 0 0 9 0 0 0 18 0 1 0 682022516 5623808 634 996147200 134512640 135239859 4294956208 18446744073709551615 6149755 0 0 4096 0 0 0 0 17 0 0 0
/proc/6629/statm: 1373 634 368 177 0 276 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5492

[startup+0.301669 s]
/proc/loadavg: 1.92 1.98 1.99 4/75 6629
/proc/meminfo: memFree=1801360/2055920 swapFree=4146920/4192956
[pid=6629] ppid=6627 vsize=6916 CPUtime=0.29
/proc/6629/stat : 6629 (xsolve) R 6627 6629 5142 0 -1 4194304 1051 0 0 0 29 0 0 0 19 0 1 0 682022516 7081984 1017 996147200 134512640 135239859 4294956208 18446744073709551615 134650366 0 0 4096 0 0 0 0 17 0 0 0
/proc/6629/statm: 1729 1017 368 177 0 632 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 6916

[startup+0.701718 s]
/proc/loadavg: 1.92 1.98 1.99 4/75 6629
/proc/meminfo: memFree=1801360/2055920 swapFree=4146920/4192956
[pid=6629] ppid=6627 vsize=9996 CPUtime=0.69
/proc/6629/stat : 6629 (xsolve) R 6627 6629 5142 0 -1 4194304 1802 0 0 0 68 1 0 0 23 0 1 0 682022516 10235904 1768 996147200 134512640 135239859 4294956208 18446744073709551615 134888506 0 0 4096 0 0 0 0 17 0 0 0
/proc/6629/statm: 2499 1768 368 177 0 1402 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 9996

[startup+1.50182 s]
/proc/loadavg: 1.92 1.98 1.99 3/76 6630
/proc/meminfo: memFree=1793800/2055920 swapFree=4146920/4192956
[pid=6629] ppid=6627 vsize=15588 CPUtime=1.49
/proc/6629/stat : 6629 (xsolve) R 6627 6629 5142 0 -1 4194304 3197 0 0 0 147 2 0 0 25 0 1 0 682022516 15962112 3163 996147200 134512640 135239859 4294956208 18446744073709551615 134705514 0 0 4096 0 0 0 0 17 0 0 0
/proc/6629/statm: 3897 3163 368 177 0 2800 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 15588

[startup+3.10202 s]
/proc/loadavg: 1.92 1.98 1.99 3/76 6630
/proc/meminfo: memFree=1776456/2055920 swapFree=4146920/4192956
[pid=6629] ppid=6627 vsize=53880 CPUtime=3.08
/proc/6629/stat : 6629 (xsolve) R 6627 6629 5142 0 -1 4194304 12737 0 0 0 301 7 0 0 25 0 1 0 682022516 55173120 12571 996147200 134512640 135239859 4294956208 18446744073709551615 134820067 0 0 4096 0 0 0 0 17 0 0 0
/proc/6629/statm: 13470 12571 386 177 0 12373 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 53880

[startup+6.30141 s]
/proc/loadavg: 1.93 1.98 1.99 3/76 6630
/proc/meminfo: memFree=1752200/2055920 swapFree=4146920/4192956
[pid=6629] ppid=6627 vsize=53880 CPUtime=6.26
/proc/6629/stat : 6629 (xsolve) R 6627 6629 5142 0 -1 4194304 12737 0 0 0 619 7 0 0 25 0 1 0 682022516 55173120 12571 996147200 134512640 135239859 4294956208 18446744073709551615 134820498 0 0 4096 0 0 0 0 17 0 0 0
/proc/6629/statm: 13470 12571 386 177 0 12373 0
Current children cumulated CPU time (s) 6.26
Current children cumulated vsize (KiB) 53880

[startup+12.7012 s]
/proc/loadavg: 1.93 1.98 1.99 3/76 6630
/proc/meminfo: memFree=1752144/2055920 swapFree=4146920/4192956
[pid=6629] ppid=6627 vsize=53880 CPUtime=12.64
/proc/6629/stat : 6629 (xsolve) R 6627 6629 5142 0 -1 4194304 12737 0 0 0 1257 7 0 0 25 0 1 0 682022516 55173120 12571 996147200 134512640 135239859 4294956208 18446744073709551615 134820011 0 0 4096 0 0 0 0 17 0 0 0
/proc/6629/statm: 13470 12571 386 177 0 12373 0
Current children cumulated CPU time (s) 12.64
Current children cumulated vsize (KiB) 53880

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

[startup+15.9016 s]
/proc/loadavg: 1.94 1.98 1.99 3/76 6630
/proc/meminfo: memFree=1752272/2055920 swapFree=4146920/4192956
[pid=6629] ppid=6627 vsize=53880 CPUtime=15.83
/proc/6629/stat : 6629 (xsolve) R 6627 6629 5142 0 -1 4194304 12737 0 0 0 1576 7 0 0 25 0 1 0 682022516 55173120 12571 996147200 134512640 135239859 4294956208 18446744073709551615 134541326 0 0 4096 0 0 0 0 17 0 0 0
/proc/6629/statm: 13470 12571 386 177 0 12373 0
Current children cumulated CPU time (s) 15.83
Current children cumulated vsize (KiB) 53880

[startup+16.7017 s]
/proc/loadavg: 1.94 1.98 1.99 3/76 6630
/proc/meminfo: memFree=1752272/2055920 swapFree=4146920/4192956
[pid=6629] ppid=6627 vsize=53880 CPUtime=16.62
/proc/6629/stat : 6629 (xsolve) R 6627 6629 5142 0 -1 4194304 12737 0 0 0 1655 7 0 0 25 0 1 0 682022516 55173120 12571 996147200 134512640 135239859 4294956208 18446744073709551615 134819992 0 0 4096 0 0 0 0 17 0 0 0
/proc/6629/statm: 13470 12571 386 177 0 12373 0
Current children cumulated CPU time (s) 16.62
Current children cumulated vsize (KiB) 53880

[startup+17.1018 s]
/proc/loadavg: 1.94 1.98 1.99 3/76 6630
/proc/meminfo: memFree=1752272/2055920 swapFree=4146920/4192956
[pid=6629] ppid=6627 vsize=53880 CPUtime=17.02
/proc/6629/stat : 6629 (xsolve) R 6627 6629 5142 0 -1 4194304 12737 0 0 0 1695 7 0 0 25 0 1 0 682022516 55173120 12571 996147200 134512640 135239859 4294956208 18446744073709551615 134543114 0 0 4096 0 0 0 0 17 0 0 0
/proc/6629/statm: 13470 12571 386 177 0 12373 0
Current children cumulated CPU time (s) 17.02
Current children cumulated vsize (KiB) 53880

[startup+17.5018 s]
/proc/loadavg: 1.94 1.98 1.99 3/76 6630
/proc/meminfo: memFree=1752400/2055920 swapFree=4146920/4192956
[pid=6629] ppid=6627 vsize=53592 CPUtime=17.42
/proc/6629/stat : 6629 (xsolve) R 6627 6629 5142 0 -1 4194304 12743 0 0 0 1735 7 0 0 25 0 1 0 682022516 54878208 12540 996147200 134512640 135239859 4294956208 18446744073709551615 6144124 0 0 4096 0 0 0 0 17 0 0 0
/proc/6629/statm: 13398 12540 392 177 0 12301 0
Current children cumulated CPU time (s) 17.42
Current children cumulated vsize (KiB) 53592

Child status: 0
Real time (s): 17.5828
CPU time (s): 17.5083
CPU user time (s): 17.4244
CPU system time (s): 0.083987
CPU usage (%): 99.5766
Max. virtual memory (cumulated for all children) (KiB): 53880

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 17.4244
system time used= 0.083987
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 12751
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= 230

runsolver used 0.015997 second user time and 0.056991 second system time

The end

Launcher Data (download as text)

Begin job on node80 at 2008-07-04 12:56:11
IDJOB=1071419
IDBENCH=56087
IDSOLVER=343
FILE ID=node80/1071419-1215168970
PBS_JOBID= 7881415
Free space on /tmp= 66552 MiB

SOLVER NAME= MDG-noprobe 2008-06-27
BENCH NAME= CPAI08/csp/chessboardColoration/normalized-cc-20-20-2.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-1071419-1215168970/watcher-1071419-1215168970 -o /tmp/evaluation-result-1071419-1215168970/solver-1071419-1215168970 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/xsolve HOME/instance-1071419-1215168970.xml -heu dom/wdeg -res no 

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= 2344aea19d376a2dc3bf2408a1b627e6
RANDOM SEED=1599054252

node80.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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1801840 kB
Buffers:         31736 kB
Cached:         116292 kB
SwapCached:      39924 kB
Active:         156936 kB
Inactive:        50916 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1801840 kB
SwapTotal:     4192956 kB
SwapFree:      4146920 kB
Dirty:            7316 kB
Writeback:           0 kB
Mapped:          65928 kB
Slab:            31548 kB
Committed_AS:  1099500 kB
PageTables:       1824 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= 66552 MiB
End job on node80 at 2008-07-04 12:56:28