Trace number 232961

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 3.69144 3.71435

General information on the benchmark

Nametaillard/os-taillard-20/
os-taillard-20-105-5.xml
MD5SUMa0a6c2f8c0e385dbc465e671c789fc14
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 benchmark0.950854
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables400
Number of constraints7600
Maximum constraint arity2
Maximum domain size1315
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)

0.02	c 
0.02	c Parsing xml file
0.02	c 	domains............... 0.02
0.04	c 	variables............. 0.02
0.05	c 	predicates............    0
0.06	c 	constraints........... 0.49
0.56	c Allocating memory
0.56	c 
0.56	c time limit = -1
0.56	c heuristic = dom/wdeg
0.56	c restart policy = No restart
0.56	c 
0.56	c Solving
0.56	c
3.67	s SATISFIABLE
3.67	v 1015 346 57 445 909 270 148 194 1113 612 682 1036 171 797 837 927 0 774 33 540 818 726 625 568 98 436 536 1131 223 986 704 882 779 0 948 329 173 250 495 1019 872 948 1203 770 797 193 348 710 655 393 1084 262 851 78 99 261 243 401 0 536 63 1157 168 331 1210 198 534 966 1038 1081 684 489 189 742 233 625 832 878 0 401 576 142 388 68 780 0 701 837 172 897 78 988 1155 442 940 481 348 279 927 1001 940 887 765 418 552 599 0 927 997 184 706 93 1084 1244 669 352 1155 796 495 274 258 1081 947 748 0 787 1018 97 910 422 578 189 917 490 878 981 662 1173 1131 343 331 567 191 872 358 966 417 1138 1091 684 596 78 427 779 939 228 174 57 0 458 490 561 1056 356 285 93 1174 417 474 623 853 764 140 0 94 708 1018 908 168 315 796 191 1158 384 614 878 553 883 704 95 646 656 274 257 352 243 457 0 998 262 896 142 554 1015 198 33 285 988 817 962 482 70 396 148 970 62 0 368 623 759 584 774 892 220 489 951 0 863 270 334 744 1124 98 962 1038 638 1203 194 420 1261 508 174 254 887 596 638 419 698 99 988 346 851 393 0 794 535 259 220 175 908 705 694 871 534 714 1041 617 0 1091 909 358 981 181 701 448 82 796 270 744 63 0 265 648 1235 1195 766 419 696 86 748 963 173 338 482 818 578 568 93 1103 72 396 742 87 554 614 0 337 911 258 986 96 172 794 1007 938 882 670 964 845 481 844 566 81 308 887 0 184 353 171 262 516 424 623 650 478 669 782 329 705 1235 765 543 193 351 307 343 418 646 790 711 0 96 1103 817 1026 410 1244 508 947 184 403 670 315 279 853 0 1040 76 478 68 1124 899 181 83 93 1210 576 726 794 938 795 81 983 471 613 281 457 248 788 1087 140 599 353 710 0 256 223 1142 887 163
3.67	d          SAT     14770 BTS         3 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/node51/watcher-232961-1168324252 -o ROOT/results/node51/solver-232961-1168324252 -C 1800 -M 900 /tmp/evaluation/232961-1168324252/mistral/bin/solver /tmp/evaluation/232961-1168324252/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: 0.20 0.55 0.99 2/69 5199
/proc/meminfo: memFree=1200640/2055920 swapFree=4192812/4192956
[pid=5198] ppid=5195 vsize=540 CPUtime=0
/proc/5198/stat : 5198 (solver) D 5195 5198 4207 0 -1 4194304 41 0 0 0 0 0 0 0 18 0 1 0 180824016 552960 26 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 2618148 0 2147483391 4096 0 18446744072099781622 0 0 17 1 0 0
/proc/5198/statm: 135 26 21 92 0 18 0

[startup+0.102033 s]
/proc/loadavg: 0.20 0.55 0.99 2/69 5199
/proc/meminfo: memFree=1200640/2055920 swapFree=4192812/4192956
[pid=5198] ppid=5195 vsize=9440 CPUtime=0.08
/proc/5198/stat : 5198 (solver) R 5195 5198 4207 0 -1 4194304 1438 0 0 0 7 1 0 0 18 0 1 0 180824016 9666560 1406 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 4158610049 0 0 4096 0 0 0 0 17 0 0 0
/proc/5198/statm: 2360 1406 707 92 0 704 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 9440

[startup+0.510096 s]
/proc/loadavg: 0.20 0.55 0.99 2/69 5199
/proc/meminfo: memFree=1200640/2055920 swapFree=4192812/4192956
[pid=5198] ppid=5195 vsize=11452 CPUtime=0.48
/proc/5198/stat : 5198 (solver) R 5195 5198 4207 0 -1 4194304 1935 0 0 0 47 1 0 0 21 0 1 0 180824016 11726848 1903 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134563166 0 0 4096 0 0 0 0 17 0 0 0
/proc/5198/statm: 2863 1903 707 92 0 1207 0
Current children cumulated CPU time (s) 0.48
Current children cumulated vsize (KiB) 11452

[startup+1.33023 s]
/proc/loadavg: 0.26 0.56 0.99 2/68 5232
/proc/meminfo: memFree=1164936/2055920 swapFree=4192812/4192956
[pid=5198] ppid=5195 vsize=39356 CPUtime=1.3
/proc/5198/stat : 5198 (solver) R 5195 5198 4207 0 -1 4194304 8914 0 0 0 126 4 0 0 25 0 1 0 180824016 40300544 8882 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134708378 0 0 4096 0 0 0 0 17 1 0 0
/proc/5198/statm: 9839 8882 717 92 0 8183 0
Current children cumulated CPU time (s) 1.3
Current children cumulated vsize (KiB) 39356

[startup+2.96751 s]
/proc/loadavg: 0.26 0.56 0.99 3/72 5236
/proc/meminfo: memFree=1135720/2055920 swapFree=4192812/4192956
[pid=5198] ppid=5195 vsize=39356 CPUtime=2.93
/proc/5198/stat : 5198 (solver) R 5195 5198 4207 0 -1 4194304 8914 0 0 0 289 4 0 0 25 0 1 0 180824016 40300544 8882 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134646865 0 0 4096 0 0 0 0 17 1 0 0
/proc/5198/statm: 9839 8882 717 92 0 8183 0
Current children cumulated CPU time (s) 2.93
Current children cumulated vsize (KiB) 39356

Child status: 0
Real time (s): 3.71435
CPU time (s): 3.69144
CPU user time (s): 3.63945
CPU system time (s): 0.051992
CPU usage (%): 99.3832
Max. virtual memory (cumulated for all children) (KiB): 39356

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.63945
system time used= 0.051992
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8924
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= 68

runsolver used 0.007998 s user time and 0.013997 s system time

The end

Launcher Data (download as text)

Begin job on node51 on Tue Jan  9 06:30:54 UTC 2007


IDJOB= 232961
IDBENCH= 6569
FILE ID= node51/232961-1168324252

PBS_JOBID= 3502934

Free space on /tmp= 66560 MiB

BENCH NAME= HOME/pub/bench/CPAI06/taillard/os-taillard-20/os-taillard-20-105-5.xml
COMMAND LINE= /tmp/evaluation/232961-1168324252/mistral/bin/solver /tmp/evaluation/232961-1168324252/unknown.xml -v 1
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node51/watcher-232961-1168324252 -o ROOT/results/node51/solver-232961-1168324252 -C 1800 -M 900  /tmp/evaluation/232961-1168324252/mistral/bin/solver /tmp/evaluation/232961-1168324252/unknown.xml -v 1

META MD5SUM SOLVER= cb80ed4ac975bdc0101f830a5b1b8f77
MD5SUM BENCH=  a0a6c2f8c0e385dbc465e671c789fc14

RANDOM SEED= 354252642

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		: 3000.277
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		: 3000.277
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:       1201512 kB
Buffers:         59584 kB
Cached:         717656 kB
SwapCached:          0 kB
Active:         237648 kB
Inactive:       559656 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1201512 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            4552 kB
Writeback:           0 kB
Mapped:          30356 kB
Slab:            42824 kB
Committed_AS:  4055220 kB
PageTables:       1616 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 node51 on Tue Jan  9 06:30:59 UTC 2007