Trace number 232988

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) 217.76 218.375

General information on the benchmark

Nametaillard/os-taillard-20/
os-taillard-20-100-3.xml
MD5SUMa952f77e6486671336c6f7fb8be515ed
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 benchmark4.08338
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables400
Number of constraints7600
Maximum constraint arity2
Maximum domain size1310
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)



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/node18/watcher-232988-1168324309 -o ROOT/results/node18/solver-232988-1168324309 -C 1800 -M 900 /tmp/evaluation/232988-1168324309/VALCSP /tmp/evaluation/232988-1168324309/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: 1.73 1.60 1.78 5/87 27045
/proc/meminfo: memFree=1328144/2055920 swapFree=4192812/4192956
[pid=27044] ppid=27042 vsize=1732 CPUtime=0
/proc/27044/stat : 27044 (VALCSP) R 27042 27044 26836 0 -1 4194304 180 0 0 0 0 0 0 0 20 0 1 0 180825558 1773568 158 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 8299142 0 0 4096 0 0 0 0 17 1 0 0
/proc/27044/statm: 433 158 62 8 0 105 0

[startup+0.104839 s]
/proc/loadavg: 1.73 1.60 1.78 5/87 27045
/proc/meminfo: memFree=1328144/2055920 swapFree=4192812/4192956
[pid=27044] ppid=27042 vsize=21584 CPUtime=0.08
/proc/27044/stat : 27044 (VALCSP) R 27042 27044 26836 0 -1 4194304 5101 0 0 0 7 1 0 0 20 0 1 0 180825558 22102016 5079 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530960 0 0 4096 0 0 0 0 17 1 0 0
/proc/27044/statm: 5396 5079 65 8 0 5068 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 21584

[startup+0.515869 s]
/proc/loadavg: 1.73 1.60 1.78 5/87 27045
/proc/meminfo: memFree=1328144/2055920 swapFree=4192812/4192956
[pid=27044] ppid=27042 vsize=21584 CPUtime=0.49
/proc/27044/stat : 27044 (VALCSP) R 27042 27044 26836 0 -1 4194304 5101 0 0 0 48 1 0 0 23 0 1 0 180825558 22102016 5079 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/27044/statm: 5396 5079 65 8 0 5068 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 21584

[startup+1.33695 s]
/proc/loadavg: 1.73 1.60 1.78 3/87 27045
/proc/meminfo: memFree=1307984/2055920 swapFree=4192812/4192956
[pid=27044] ppid=27042 vsize=21584 CPUtime=1.31
/proc/27044/stat : 27044 (VALCSP) R 27042 27044 26836 0 -1 4194304 5101 0 0 0 130 1 0 0 25 0 1 0 180825558 22102016 5079 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/27044/statm: 5396 5079 65 8 0 5068 0
Current children cumulated CPU time (s) 1.31
Current children cumulated vsize (KiB) 21584

[startup+2.97411 s]
/proc/loadavg: 1.73 1.60 1.78 3/87 27045
/proc/meminfo: memFree=1301584/2055920 swapFree=4192812/4192956
[pid=27044] ppid=27042 vsize=27916 CPUtime=2.93
/proc/27044/stat : 27044 (VALCSP) R 27042 27044 26836 0 -1 4194304 6676 0 0 0 291 2 0 0 25 0 1 0 180825558 28585984 6654 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 1 0 0
/proc/27044/statm: 6979 6654 65 8 0 6651 0
Current children cumulated CPU time (s) 2.93
Current children cumulated vsize (KiB) 27916

[startup+6.25342 s]
/proc/loadavg: 1.75 1.61 1.78 3/87 27045
/proc/meminfo: memFree=1288976/2055920 swapFree=4192812/4192956
[pid=27044] ppid=27042 vsize=40524 CPUtime=6.19
/proc/27044/stat : 27044 (VALCSP) R 27042 27044 26836 0 -1 4194304 9821 0 0 0 615 4 0 0 25 0 1 0 180825558 41496576 9799 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/27044/statm: 10131 9799 65 8 0 9803 0
Current children cumulated CPU time (s) 6.19
Current children cumulated vsize (KiB) 40524

[startup+12.719 s]
/proc/loadavg: 1.77 1.62 1.78 3/87 27045
/proc/meminfo: memFree=1264080/2055920 swapFree=4192812/4192956
[pid=27044] ppid=27042 vsize=65472 CPUtime=12.59
/proc/27044/stat : 27044 (VALCSP) R 27042 27044 26836 0 -1 4194304 16076 0 0 0 1253 6 0 0 25 0 1 0 180825558 67043328 16054 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530960 0 0 4096 0 0 0 0 17 1 0 0
/proc/27044/statm: 16368 16054 65 8 0 16040 0
Current children cumulated CPU time (s) 12.59
Current children cumulated vsize (KiB) 65472

[startup+25.5313 s]
/proc/loadavg: 1.82 1.63 1.79 3/87 27045
/proc/meminfo: memFree=1214800/2055920 swapFree=4192812/4192956
[pid=27044] ppid=27042 vsize=120796 CPUtime=25.29
/proc/27044/stat : 27044 (VALCSP) R 27042 27044 26836 0 -1 4194304 29896 0 0 0 2516 13 0 0 25 0 1 0 180825558 123695104 29874 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/27044/statm: 30199 29874 65 8 0 29871 0
Current children cumulated CPU time (s) 25.29
Current children cumulated vsize (KiB) 120796

[startup+51.1688 s]
/proc/loadavg: 1.81 1.65 1.79 3/94 27142
/proc/meminfo: memFree=1084560/2055920 swapFree=4192812/4192956
[pid=27044] ppid=27042 vsize=226128 CPUtime=50.77
/proc/27044/stat : 27044 (VALCSP) R 27042 27044 26836 0 -1 4194304 56231 0 0 0 5050 27 0 0 25 0 1 0 180825558 231555072 56209 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 0 0 0
/proc/27044/statm: 56532 56209 65 8 0 56204 0
Current children cumulated CPU time (s) 50.77
Current children cumulated vsize (KiB) 226128

[startup+102.471 s]
/proc/loadavg: 1.91 1.70 1.79 3/86 27188
/proc/meminfo: memFree=1023120/2055920 swapFree=4192812/4192956
[pid=27044] ppid=27042 vsize=436440 CPUtime=101.96
/proc/27044/stat : 27044 (VALCSP) R 27042 27044 26836 0 -1 4194304 108811 0 0 0 10139 57 0 0 25 0 1 0 180825558 446914560 108789 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530210 0 0 4096 0 0 0 0 17 0 0 0
/proc/27044/statm: 109110 108789 65 8 0 108782 0
Current children cumulated CPU time (s) 101.96
Current children cumulated vsize (KiB) 436440

[startup+162.558 s]
/proc/loadavg: 2.02 1.77 1.81 3/86 27188
/proc/meminfo: memFree=501328/2055920 swapFree=4192812/4192956
[pid=27044] ppid=27042 vsize=687764 CPUtime=161.99
/proc/27044/stat : 27044 (VALCSP) R 27042 27044 26836 0 -1 4194304 171645 0 0 0 16117 82 0 0 25 0 1 0 180825558 704270336 171623 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 0 0 0
/proc/27044/statm: 171941 171623 65 8 0 171613 0
Current children cumulated CPU time (s) 161.99
Current children cumulated vsize (KiB) 687764



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+218.234 s]
/proc/loadavg: 2.00 1.81 1.82 3/86 27188
/proc/meminfo: memFree=20368/2055920 swapFree=4192812/4192956
[pid=27044] ppid=27042 vsize=923336 CPUtime=217.62
/proc/27044/stat : 27044 (VALCSP) R 27042 27044 26836 0 -1 4194304 230544 0 0 0 21657 105 0 0 25 0 1 0 180825558 945496064 230522 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 0 0 0
/proc/27044/statm: 230834 230522 65 8 0 230506 0
Current children cumulated CPU time (s) 217.62
Current children cumulated vsize (KiB) 923336

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 218.375
CPU time (s): 217.76
CPU user time (s): 216.571
CPU system time (s): 1.18882
CPU usage (%): 99.7185
Max. virtual memory (cumulated for all children) (KiB): 923336

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 216.571
system time used= 1.18882
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 230544
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= 6
involuntary context switches= 2950

runsolver used 0.317951 s user time and 0.643902 s system time

The end



Launcher Data (download as text)




Begin job on node18 on Tue Jan  9 06:31:49 UTC 2007


IDJOB= 232988
IDBENCH= 6573
FILE ID= node18/232988-1168324309

PBS_JOBID= 3502740

Free space on /tmp= 66527 MiB

BENCH NAME= HOME/pub/bench/CPAI06/taillard/os-taillard-20/os-taillard-20-100-3.xml
COMMAND LINE= /tmp/evaluation/232988-1168324309/VALCSP /tmp/evaluation/232988-1168324309/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node18/watcher-232988-1168324309 -o ROOT/results/node18/solver-232988-1168324309 -C 1800 -M 900  /tmp/evaluation/232988-1168324309/VALCSP /tmp/evaluation/232988-1168324309/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  a952f77e6486671336c6f7fb8be515ed

RANDOM SEED= 663881757

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		: 3000.231
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		: 3000.231
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:       1328560 kB
Buffers:        101184 kB
Cached:         418472 kB
SwapCached:          0 kB
Active:         455684 kB
Inactive:       209356 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1328560 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1216 kB
Writeback:           0 kB
Mapped:         165512 kB
Slab:            47076 kB
Committed_AS:  5556036 kB
PageTables:       2228 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= 66551 MiB



End job on node18 on Tue Jan  9 06:35:27 UTC 2007