Trace number 235501

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
VALCSP 3.0? (MO) 108.197 109.566

General information on the benchmark

Nametaillard/os-taillard-10/
os-taillard-10-100-3.xml
MD5SUMcbaeb35ea8a927d2b6c5893afeb98a65
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 benchmark0.181971
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables100
Number of constraints900
Maximum constraint arity2
Maximum domain size577
Number of constraints which are defined in extension0
Number of constraints which are defined in intension900
Global constraints used (with number of constraints)

Solver Data (download as text)



Verifier Data (download as text)




ERROR: Unexpected answer ! (SAT/UNSAT expected)
Got answer: 



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-235501-1168338109 -o ROOT/results/node25/solver-235501-1168338109 -C 1800 -M 900 /tmp/evaluation/235501-1168338109/VALCSP /tmp/evaluation/235501-1168338109/unknown.xml 

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: 0.85 0.97 0.99 2/86 12150
/proc/meminfo: memFree=1073512/2055920 swapFree=4170860/4192956
[pid=12149] ppid=12144 vsize=4108 CPUtime=0
/proc/12149/stat : 12149 (VALCSP) R 12144 12149 12034 0 -1 4194304 765 0 0 0 0 0 0 0 19 0 1 0 182203515 4206592 743 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530997 0 0 4096 0 0 0 0 17 1 0 0
/proc/12149/statm: 1027 743 64 8 0 699 0

[startup+0.102809 s]
/proc/loadavg: 0.85 0.97 0.99 2/86 12150
/proc/meminfo: memFree=1073512/2055920 swapFree=4170860/4192956
[pid=12149] ppid=12144 vsize=4108 CPUtime=0.09
/proc/12149/stat : 12149 (VALCSP) R 12144 12149 12034 0 -1 4194304 765 0 0 0 9 0 0 0 20 0 1 0 182203515 4206592 743 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530223 0 0 4096 0 0 0 0 17 1 0 0
/proc/12149/statm: 1027 743 64 8 0 699 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4108

[startup+0.510876 s]
/proc/loadavg: 0.85 0.97 0.99 2/86 12150
/proc/meminfo: memFree=1073512/2055920 swapFree=4170860/4192956
[pid=12149] ppid=12144 vsize=7408 CPUtime=0.5
/proc/12149/stat : 12149 (VALCSP) R 12144 12149 12034 0 -1 4194304 1607 0 0 0 50 0 0 0 24 0 1 0 182203515 7585792 1585 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530960 0 0 4096 0 0 0 0 17 1 0 0
/proc/12149/statm: 1852 1585 64 8 0 1524 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 7408

[startup+1.33201 s]
/proc/loadavg: 0.85 0.97 0.99 3/97 12161
/proc/meminfo: memFree=1037328/2055920 swapFree=4170860/4192956
[pid=12149] ppid=12144 vsize=13480 CPUtime=1.32
/proc/12149/stat : 12149 (VALCSP) R 12144 12149 12034 0 -1 4194304 3112 0 0 0 131 1 0 0 25 0 1 0 182203515 13803520 3090 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530342 0 0 4096 0 0 0 0 17 1 0 0
/proc/12149/statm: 3370 3090 64 8 0 3042 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 13480

[startup+2.9763 s]
/proc/loadavg: 0.85 0.97 0.99 3/97 12161
/proc/meminfo: memFree=964624/2055920 swapFree=4170860/4192956
[pid=12149] ppid=12144 vsize=26812 CPUtime=2.9
/proc/12149/stat : 12149 (VALCSP) R 12144 12149 12034 0 -1 4194304 6461 0 0 0 287 3 0 0 25 0 1 0 182203515 27455488 6439 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 0 0 0
/proc/12149/statm: 6703 6439 64 8 0 6375 0
Current children cumulated CPU time (s) 2.9
Current children cumulated vsize (KiB) 26812

[startup+6.28086 s]
/proc/loadavg: 0.94 0.98 0.99 3/97 12161
/proc/meminfo: memFree=874704/2055920 swapFree=4170860/4192956
[pid=12149] ppid=12144 vsize=57040 CPUtime=6.15
/proc/12149/stat : 12149 (VALCSP) R 12144 12149 12034 0 -1 4194304 13989 0 0 0 609 6 0 0 25 0 1 0 182203515 58408960 13967 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 0 0 0
/proc/12149/statm: 14260 13967 64 8 0 13932 0
Current children cumulated CPU time (s) 6.15
Current children cumulated vsize (KiB) 57040

[startup+12.7238 s]
/proc/loadavg: 1.02 1.00 1.00 3/97 12161
/proc/meminfo: memFree=711888/2055920 swapFree=4170860/4192956
[pid=12149] ppid=12144 vsize=109840 CPUtime=12.43
/proc/12149/stat : 12149 (VALCSP) R 12144 12149 12034 0 -1 4194304 27196 0 0 0 1231 12 0 0 25 0 1 0 182203515 112476160 27174 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/12149/statm: 27460 27174 64 8 0 27132 0
Current children cumulated CPU time (s) 12.43
Current children cumulated vsize (KiB) 109840

[startup+25.565 s]
/proc/loadavg: 1.24 1.05 1.02 3/97 12161
/proc/meminfo: memFree=422928/2055920 swapFree=4170860/4192956
[pid=12149] ppid=12144 vsize=220192 CPUtime=24.97
/proc/12149/stat : 12149 (VALCSP) R 12144 12149 12034 0 -1 4194304 54794 0 0 0 2473 24 0 0 25 0 1 0 182203515 225476608 54772 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530412 0 0 4096 0 0 0 0 17 0 0 0
/proc/12149/statm: 55048 54772 64 8 0 54720 0
Current children cumulated CPU time (s) 24.97
Current children cumulated vsize (KiB) 220192

[startup+51.2403 s]
/proc/loadavg: 1.50 1.12 1.04 4/97 12161
/proc/meminfo: memFree=15888/2055920 swapFree=4170860/4192956
[pid=12149] ppid=12144 vsize=440896 CPUtime=50.33
/proc/12149/stat : 12149 (VALCSP) R 12144 12149 12034 0 -1 4194304 109975 0 0 0 4985 48 0 0 25 0 1 0 182203515 451477504 109953 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530931 0 0 4096 0 0 0 0 17 0 0 0
/proc/12149/statm: 110224 109953 64 8 0 109896 0
Current children cumulated CPU time (s) 50.33
Current children cumulated vsize (KiB) 440896

[startup+102.499 s]
/proc/loadavg: 2.40 1.43 1.14 4/97 12161
/proc/meminfo: memFree=15440/2055920 swapFree=4170860/4192956
[pid=12149] ppid=12144 vsize=864220 CPUtime=101.21
/proc/12149/stat : 12149 (VALCSP) R 12144 12149 12034 0 -1 4194304 215817 0 0 0 10013 108 0 0 25 0 1 0 182203515 884961280 215795 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 1 0 0
/proc/12149/statm: 216055 215795 64 8 0 215727 0
Current children cumulated CPU time (s) 101.21
Current children cumulated vsize (KiB) 864220



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+109.411 s]
/proc/loadavg: 2.45 1.45 1.15 3/97 12161
/proc/meminfo: memFree=16272/2055920 swapFree=4170860/4192956
[pid=12149] ppid=12144 vsize=921640 CPUtime=108.04
/proc/12149/stat : 12149 (VALCSP) R 12144 12149 12034 0 -1 4194304 230164 0 0 0 10687 117 0 0 25 0 1 0 182203515 943759360 230142 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/12149/statm: 230410 230142 64 8 0 230082 0
Current children cumulated CPU time (s) 108.04
Current children cumulated vsize (KiB) 921640

Sending SIGTERM to process tree (bottom up)
Sleeping 2 seconds

Child ended because it received signal 15 (SIGTERM)
Real time (s): 109.566
CPU time (s): 108.197
CPU user time (s): 106.875
CPU system time (s): 1.3218
CPU usage (%): 98.7498
Max. virtual memory (cumulated for all children) (KiB): 921640

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 106.875
system time used= 1.3218
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 230164
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= 5
involuntary context switches= 3550

runsolver used 0.115982 s user time and 0.337948 s system time

The end



Launcher Data (download as text)




Begin job on node25 on Tue Jan  9 10:21:50 UTC 2007


IDJOB= 235501
IDBENCH= 6774
FILE ID= node25/235501-1168338109

PBS_JOBID= 3503401

Free space on /tmp= 66562 MiB

BENCH NAME= HOME/pub/bench/CPAI06/taillard/os-taillard-10/os-taillard-10-100-3.xml
COMMAND LINE= /tmp/evaluation/235501-1168338109/VALCSP /tmp/evaluation/235501-1168338109/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node25/watcher-235501-1168338109 -o ROOT/results/node25/solver-235501-1168338109 -C 1800 -M 900  /tmp/evaluation/235501-1168338109/VALCSP /tmp/evaluation/235501-1168338109/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  cbaeb35ea8a927d2b6c5893afeb98a65

RANDOM SEED= 788611447

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:       1077096 kB
Buffers:         23364 kB
Cached:         874036 kB
SwapCached:       2376 kB
Active:         161396 kB
Inactive:       764876 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1077096 kB
SwapTotal:     4192956 kB
SwapFree:      4170860 kB
Dirty:            2956 kB
Writeback:           0 kB
Mapped:          38020 kB
Slab:            37468 kB
Committed_AS:  3819168 kB
PageTables:       2232 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= 66562 MiB



End job on node25 on Tue Jan  9 10:23:41 UTC 2007