Trace number 233273

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, and are wall clock time (not CPU 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
Mistral 2006-12-04SAT 2.47362 2.50151

General information on the benchmark

Nametaillard/os-taillard-20/
os-taillard-20-100-9.xml
MD5SUM7bcc6ec8aa0f71b96754283e8b08b1cc
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1.90271
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables400
Number of constraints7600
Maximum constraint arity2
Maximum domain size1284
Number of constraints which are defined in extension0
Number of constraints which are defined in intension7600
Global constraints used (with number of constraints)

Solver Data (download as text)

0.11	c 
0.11	c Parsing xml file
0.11	c 	domains............... 0.02
0.11	c 	variables.............    0
0.11	c 	predicates............    0
0.11	c 	constraints........... 0.53
0.58	c Allocating memory
0.58	c 
0.58	c time limit = -1
0.58	c heuristic = dom/wdeg
0.58	c restart policy = No restart
0.58	c 
0.58	c Solving
0.58	c
2.46	s SATISFIABLE
2.46	v 692 277 658 370 98 179 913 1128 462 610 960 344 884 831 0 547 648 1106 326 356 283 623 1003 591 0 874 551 189 833 454 92 1079 920 936 426 482 1156 1209 715 335 819 175 239 122 266 69 367 637 1034 499 1181 0 442 276 92 512 600 361 988 967 1128 1197 628 1164 1027 955 1081 1225 366 438 552 695 188 465 96 0 276 792 875 1235 529 546 465 538 367 178 0 552 270 954 763 995 809 86 877 714 683 242 625 692 737 454 503 242 1234 87 0 1143 993 331 833 434 1087 151 621 1057 637 954 547 915 625 1209 0 682 1129 897 277 417 1156 755 802 1177 176 591 502 97 369 1067 980 37 366 957 462 442 509 710 919 174 970 1057 0 529 1156 257 892 795 347 850 99 554 945 1214 274 579 688 98 1087 909 312 347 0 493 245 190 402 993 792 637 426 715 871 961 500 451 760 812 188 281 1005 925 1077 635 1023 1120 566 1044 0 99 709 364 591 337 802 89 988 0 1197 856 1156 913 181 1226 257 709 1076 763 669 434 999 526 378 264 978 286 880 1034 970 215 930 716 92 566 777 799 1206 0 173 1057 337 305 909 621 510 755 831 668 566 795 369 897 195 451 856 99 286 877 904 911 714 0 0 96 936 1043 193 999 270 512 952 628 1016 710 792 438 584 366 857 875 180 971 683 924 228 65 376 938 93 0 175 331 892 787 215 538 1152 1065 668 695 799 465 164 960 682 510 1129 912 1105 419 0 886 37 730 276 482 82 763 814 1044 226 591 998 0 1164 281 510 344 447 880 842 904 804 85 1242 696 721 426 1081 186 617 549 451 1027 967 0 721 792 282 378 579 763 512 920 195 998 99 179 649 257 941 845 1168 649 716 896 1134 588 193 283 760 1151 1016 930 1076 454 376 500 819 1116 0 96 844 182 955 992 919 1133 163 730 333 0 366 494 787 1120 245 755 638 451 1220 92
2.46	d          SAT      5510 BTS       1.8 s

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.1.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node25/watcher-233273-1168325224 -o ROOT/results/node25/solver-233273-1168325224 -C 1800 -M 900 /tmp/evaluation/233273-1168325224/mistral/bin/solver /tmp/evaluation/233273-1168325224/unknown.xml -v 1 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 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
Current StackSize limit: 10240 KiB

/proc/loadavg: 2.35 1.92 1.41 5/93 4354
/proc/meminfo: memFree=761064/2055920 swapFree=4170860/4192956
[pid=4353] ppid=4351 vsize=540 CPUtime=0
/proc/4353/stat : 4353 (solver) R 4351 4353 3193 0 -1 4194304 41 0 0 0 0 0 0 0 19 0 1 0 180914975 552960 26 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 3765028 0 2147483391 4096 0 0 0 0 17 1 0 0
/proc/4353/statm: 135 26 21 92 0 18 0

[startup+0.105405 s]
/proc/loadavg: 2.35 1.92 1.41 5/93 4354
/proc/meminfo: memFree=761064/2055920 swapFree=4170860/4192956
[pid=4353] ppid=4351 vsize=9428 CPUtime=0.08
/proc/4353/stat : 4353 (solver) R 4351 4353 3193 0 -1 4194304 1446 0 0 0 8 0 0 0 19 0 1 0 180914975 9654272 1414 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134603997 0 0 4096 0 0 0 0 17 1 0 0
/proc/4353/statm: 2357 1414 707 92 0 701 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 9428

[startup+0.513474 s]
/proc/loadavg: 2.35 1.92 1.41 5/93 4354
/proc/meminfo: memFree=761064/2055920 swapFree=4170860/4192956
[pid=4353] ppid=4351 vsize=11280 CPUtime=0.49
/proc/4353/stat : 4353 (solver) R 4351 4353 3193 0 -1 4194304 1911 0 0 0 48 1 0 0 23 0 1 0 180914975 11550720 1879 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 4224800 0 0 4096 0 0 0 0 17 1 0 0
/proc/4353/statm: 2820 1879 707 92 0 1164 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 11280

[startup+1.34161 s]
/proc/loadavg: 2.32 1.92 1.41 3/93 4354
/proc/meminfo: memFree=728744/2055920 swapFree=4170860/4192956
[pid=4353] ppid=4351 vsize=38788 CPUtime=1.32
/proc/4353/stat : 4353 (solver) R 4351 4353 3193 0 -1 4194304 8802 0 0 0 128 4 0 0 25 0 1 0 180914975 39718912 8770 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134727366 0 0 4096 0 0 0 0 17 1 0 0
/proc/4353/statm: 9697 8770 717 92 0 8041 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 38788

Child status: 0
Real time (s): 2.50151
CPU time (s): 2.47362
CPU user time (s): 2.42363
CPU system time (s): 0.049992
CPU usage (%): 98.8852
Max. virtual memory (cumulated for all children) (KiB): 38792

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.42363
system time used= 0.049992
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8813
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= 13
involuntary context switches= 85

runsolver used 0.003999 s user time and 0.014997 s system time

The end

Launcher Data (download as text)

Begin job on node25 on Tue Jan  9 06:47:05 UTC 2007


IDJOB= 233273
IDBENCH= 6590
FILE ID= node25/233273-1168325224

PBS_JOBID= 3502965

Free space on /tmp= 66558 MiB

BENCH NAME= HOME/pub/bench/CPAI06/taillard/os-taillard-20/os-taillard-20-100-9.xml
COMMAND LINE= /tmp/evaluation/233273-1168325224/mistral/bin/solver /tmp/evaluation/233273-1168325224/unknown.xml -v 1
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node25/watcher-233273-1168325224 -o ROOT/results/node25/solver-233273-1168325224 -C 1800 -M 900  /tmp/evaluation/233273-1168325224/mistral/bin/solver /tmp/evaluation/233273-1168325224/unknown.xml -v 1

META MD5SUM SOLVER= cb80ed4ac975bdc0101f830a5b1b8f77
MD5SUM BENCH=  7bcc6ec8aa0f71b96754283e8b08b1cc

RANDOM SEED= 896869717

TIME LIMIT= 1800 seconds

MEMORY LIMIT= 900 MiB


/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		: 3000.279
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		: 3000.279
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:        761608 kB
Buffers:         14848 kB
Cached:         998384 kB
SwapCached:       2280 kB
Active:         473100 kB
Inactive:       767660 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        761608 kB
SwapTotal:     4192956 kB
SwapFree:      4170860 kB
Dirty:            4080 kB
Writeback:           0 kB
Mapped:         246000 kB
Slab:            37840 kB
Committed_AS:  4610384 kB
PageTables:       2736 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= 66558 MiB



End job on node25 on Tue Jan  9 06:47:08 UTC 2007