Trace number 233078

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 1.08383 1.09638

General information on the benchmark

Nametaillard/os-taillard-20/
os-taillard-20-100-1.xml
MD5SUM5a4c32da7b2151a1595ab2d1cc4dfcd9
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 benchmark1.08383
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables400
Number of constraints7600
Maximum constraint arity2
Maximum domain size1332
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)

0.08	c 
0.08	c Parsing xml file
0.08	c 	domains............... 0.02
0.08	c 	variables.............    0
0.08	c 	predicates............    0
0.08	c 	constraints........... 0.54
0.59	c Allocating memory
0.59	c 
0.59	c time limit = -1
0.59	c heuristic = dom/wdeg
0.59	c restart policy = No restart
0.59	c 
0.59	c Solving
0.59	c
1.05	s SATISFIABLE
1.05	v 783 435 732 539 1279 99 892 633 0 176 1150 836 368 957 384 232 1086 132 266 1020 97 460 832 193 609 266 1038 892 275 793 0 1099 1187 356 961 421 673 517 732 442 767 534 984 453 753 636 497 298 964 97 670 447 368 192 1017 0 1119 833 329 309 959 548 1240 159 684 458 83 1059 165 286 670 1099 0 775 627 368 919 251 652 859 289 78 654 239 0 181 228 916 497 775 460 373 151 72 562 528 959 455 1164 1174 1266 627 1049 90 554 877 1086 989 821 176 368 194 928 0 994 698 467 1195 289 734 1102 789 534 251 411 560 97 187 999 496 1038 900 1174 0 75 315 722 1225 937 650 349 99 697 474 875 1016 1187 938 1092 738 496 1247 370 198 485 487 455 288 583 0 358 880 0 1010 557 1187 601 243 654 545 1247 315 150 732 784 953 98 392 1056 510 69 742 368 938 560 463 1217 1068 989 813 232 194 1145 730 0 649 1092 384 684 309 555 373 721 775 49 0 1254 181 451 480 952 1056 1020 361 875 275 98 187 836 654 0 379 331 898 1164 650 446 1236 555 289 151 813 1016 231 81 1270 1081 957 717 1134 771 839 517 192 287 532 1092 315 920 1137 997 1216 662 739 435 0 93 344 982 583 93 732 0 633 1119 539 875 784 69 650 1108 984 1049 272 82 370 177 937 463 1190 627 372 1187 1278 880 583 1142 83 43 460 165 0 830 349 994 198 722 90 172 510 759 256 97 1119 559 691 228 191 898 315 232 366 462 1142 1192 487 287 0 507 1017 1043 939 994 1081 288 760 697 821 1187 295 392 633 1118 0 1155 97 562 880 484 194 181 0 97 976 759 319 1142 447 1182 356 698 507 1087 832 603 78 384 928 1219 662 616 924 673 441 873 819 451 319 545 243 91 701 1002 398 1037 1145 0 775 151 176 1171 194 262 1225 783 0 359 1092 652 873 997 682 619 583 398 1037 484 97 344 919
1.05	d          SAT      1161 BTS      0.36 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/node24/watcher-233078-1168324701 -o ROOT/results/node24/solver-233078-1168324701 -C 1800 -M 900 /tmp/evaluation/233078-1168324701/mistral/bin/solver /tmp/evaluation/233078-1168324701/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


[startup+0.102222 s]
/proc/loadavg: 2.14 2.04 1.94 2/97 21420
/proc/meminfo: memFree=494424/2055920 swapFree=4192812/4192956
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 0
/proc/loadavg: 2.14 2.04 1.94 2/97 21420
/proc/meminfo: memFree=494424/2055920 swapFree=4192812/4192956
[pid=21419] ppid=21417 vsize=9964 CPUtime=0.19
/proc/21419/stat : 21419 (solver) R 21417 21419 20417 0 -1 4194304 1579 0 0 0 19 0 0 0 19 0 1 0 180865439 10203136 1547 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134575773 0 0 4096 0 0 0 0 17 1 0 0
/proc/21419/statm: 2491 1547 707 92 0 835 0

[startup+0.510264 s]
/proc/loadavg: 2.14 2.04 1.94 2/97 21420
/proc/meminfo: memFree=494424/2055920 swapFree=4192812/4192956
[pid=21419] ppid=21417 vsize=11424 CPUtime=0.49
/proc/21419/stat : 21419 (solver) R 21417 21419 20417 0 -1 4194304 1922 0 0 0 49 0 0 0 22 0 1 0 180865439 11698176 1890 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 4158555767 0 0 4096 0 0 0 0 17 1 0 0
/proc/21419/statm: 2856 1890 707 92 0 1200 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 11424

Child status: 0
Real time (s): 1.09638
CPU time (s): 1.08383
CPU user time (s): 1.03684
CPU system time (s): 0.046992
CPU usage (%): 98.8555
Max. virtual memory (cumulated for all children) (KiB): 39716

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.03684
system time used= 0.046992
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 9023
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= 66

runsolver used 0.001999 s user time and 0.006998 s system time

The end

Launcher Data (download as text)

Begin job on node24 on Tue Jan  9 06:38:22 UTC 2007


IDJOB= 233078
IDBENCH= 6580
FILE ID= node24/233078-1168324701

PBS_JOBID= 3502878

Free space on /tmp= 66471 MiB

BENCH NAME= HOME/pub/bench/CPAI06/taillard/os-taillard-20/os-taillard-20-100-1.xml
COMMAND LINE= /tmp/evaluation/233078-1168324701/mistral/bin/solver /tmp/evaluation/233078-1168324701/unknown.xml -v 1
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node24/watcher-233078-1168324701 -o ROOT/results/node24/solver-233078-1168324701 -C 1800 -M 900  /tmp/evaluation/233078-1168324701/mistral/bin/solver /tmp/evaluation/233078-1168324701/unknown.xml -v 1

META MD5SUM SOLVER= cb80ed4ac975bdc0101f830a5b1b8f77
MD5SUM BENCH=  5a4c32da7b2151a1595ab2d1cc4dfcd9

RANDOM SEED= 590715630

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		: 3000.234
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		: 3000.234
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:        494840 kB
Buffers:         16444 kB
Cached:        1223264 kB
SwapCached:          0 kB
Active:         873276 kB
Inactive:       634768 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        494840 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            7616 kB
Writeback:           0 kB
Mapped:         297760 kB
Slab:            37204 kB
Committed_AS:  4601516 kB
PageTables:       2828 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= 66471 MiB



End job on node24 on Tue Jan  9 06:38:23 UTC 2007