Trace number 233094

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 1.09383 1.15161

General information on the benchmark

Nametaillard/os-taillard-20/
os-taillard-20-100-7.xml
MD5SUMb7da7eeabd87a2ed31538cf45df24a02
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 benchmark0.916859
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables400
Number of constraints7600
Maximum constraint arity2
Maximum domain size1269
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)

0.20	c 
0.20	c Parsing xml file
0.20	c 	domains............... 0.02
0.20	c 	variables.............    0
0.20	c 	predicates............    0
0.20	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
1.06	s SATISFIABLE
1.06	v 281 787 475 1137 157 93 605 85 553 1066 704 194 1195 408 636 938 829 0 588 345 518 924 909 414 296 805 1164 635 742 1044 1087 141 429 1231 170 92 1008 198 341 0 187 178 263 1105 91 1015 741 0 667 1067 1223 1147 316 233 969 819 540 328 417 467 1108 567 96 347 813 478 176 1148 286 788 848 636 1011 675 935 984 0 401 550 1057 365 276 85 832 997 1116 0 695 752 938 182 655 1128 158 394 871 67 586 774 511 511 1061 191 806 1143 229 377 1093 188 0 752 1237 877 408 438 657 890 274 71 971 560 605 242 994 861 655 400 0 973 274 157 477 358 1210 345 795 1128 382 99 705 973 1071 882 0 676 1046 922 486 1010 1087 175 394 737 771 272 630 95 861 337 550 525 92 322 547 478 1055 899 182 635 404 0 808 433 707 251 752 1143 914 417 971 394 613 377 1009 671 0 808 177 884 756 229 631 637 918 568 322 848 478 96 969 1008 274 819 699 360 1067 567 175 486 0 438 97 1034 762 1054 871 921 968 89 633 547 1123 695 1106 1034 601 910 478 829 968 187 271 96 466 0 636 362 433 1055 776 830 390 832 466 1181 892 198 277 671 1067 99 597 485 751 308 547 971 1123 0 302 360 676 921 281 0 1007 430 699 776 1208 853 276 1093 485 1148 514 585 92 177 806 176 722 418 603 174 661 129 233 1071 745 0 141 188 508 95 380 919 852 1015 271 1170 633 829 360 956 291 0 695 342 752 910 477 397 1057 194 95 568 436 418 890 82 67 345 915 427 808 267 0 1170 707 291 863 158 1010 550 1073 193 788 1089 603 762 661 267 863 1122 91 400 496 997 918 0 182 312 71 668 734 290 605 757 550 96 174 0 829 922 1034 637 360 1164 263 902 755 430 277 290 586 518 1128 404 655 848 0 914 629 1175 96 394 877 542 756 667 469 1011 742 90 296 787 722 825 193
1.06	d          SAT      2923 BTS      0.38 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/node45/watcher-233094-1168324805 -o ROOT/results/node45/solver-233094-1168324805 -C 1800 -M 900 /tmp/evaluation/233094-1168324805/mistral/bin/solver /tmp/evaluation/233094-1168324805/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: 2.02 1.91 1.52 2/73 18988
/proc/meminfo: memFree=1451968/2055920 swapFree=4184048/4192956
[pid=18987] ppid=18985 vsize=540 CPUtime=0
/proc/18987/stat : 18987 (solver) R 18985 18987 18382 0 -1 4194304 41 0 0 0 0 0 0 0 19 0 1 0 180879512 552960 26 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 4727588 0 2147483391 4096 0 0 0 0 17 1 0 0
/proc/18987/statm: 135 26 21 92 0 18 0

[startup+0.103064 s]
/proc/loadavg: 2.02 1.91 1.52 2/73 18988
/proc/meminfo: memFree=1451968/2055920 swapFree=4184048/4192956
[pid=18987] ppid=18985 vsize=9432 CPUtime=0.08
/proc/18987/stat : 18987 (solver) R 18985 18987 18382 0 -1 4194304 1436 0 0 0 8 0 0 0 18 0 1 0 180879512 9658368 1404 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134602302 0 0 4096 0 0 0 0 17 1 0 0
/proc/18987/statm: 2358 1404 707 92 0 702 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 9432

[startup+0.511137 s]
/proc/loadavg: 2.02 1.91 1.52 2/73 18988
/proc/meminfo: memFree=1451968/2055920 swapFree=4184048/4192956
[pid=18987] ppid=18985 vsize=11284 CPUtime=0.49
/proc/18987/stat : 18987 (solver) R 18985 18987 18382 0 -1 4194304 1895 0 0 0 49 0 0 0 21 0 1 0 180879512 11554816 1863 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 4863571 0 0 4096 0 0 0 0 17 1 0 0
/proc/18987/statm: 2821 1863 707 92 0 1165 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 11284

Child status: 0
Real time (s): 1.15161
CPU time (s): 1.09383
CPU user time (s): 1.04384
CPU system time (s): 0.049992
CPU usage (%): 94.9828
Max. virtual memory (cumulated for all children) (KiB): 38396

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.04384
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= 8713
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= 40

runsolver used 0.007998 s user time and 0.008998 s system time

The end

Launcher Data (download as text)

Begin job on node45 on Tue Jan  9 06:40:05 UTC 2007


IDJOB= 233094
IDBENCH= 6581
FILE ID= node45/233094-1168324805

PBS_JOBID= 3502940

Free space on /tmp= 66548 MiB

BENCH NAME= HOME/pub/bench/CPAI06/taillard/os-taillard-20/os-taillard-20-100-7.xml
COMMAND LINE= /tmp/evaluation/233094-1168324805/mistral/bin/solver /tmp/evaluation/233094-1168324805/unknown.xml -v 1
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node45/watcher-233094-1168324805 -o ROOT/results/node45/solver-233094-1168324805 -C 1800 -M 900  /tmp/evaluation/233094-1168324805/mistral/bin/solver /tmp/evaluation/233094-1168324805/unknown.xml -v 1

META MD5SUM SOLVER= cb80ed4ac975bdc0101f830a5b1b8f77
MD5SUM BENCH=  b7da7eeabd87a2ed31538cf45df24a02

RANDOM SEED= 952189521

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		: 3000.259
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		: 3000.259
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:       1452448 kB
Buffers:         68496 kB
Cached:         430720 kB
SwapCached:       3168 kB
Active:         193112 kB
Inactive:       351628 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1452448 kB
SwapTotal:     4192956 kB
SwapFree:      4184048 kB
Dirty:            3988 kB
Writeback:           0 kB
Mapped:          54508 kB
Slab:            44108 kB
Committed_AS:  3754368 kB
PageTables:       1768 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= 66548 MiB



End job on node45 on Tue Jan  9 06:40:07 UTC 2007