Trace number 191950

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) 60.8667 61.0084

General information on the benchmark

Namequeens/
queens-150.xml
MD5SUMb0d89abe262117e726883b3c610dd5a5
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 benchmark1.06284
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables150
Number of constraints11175
Maximum constraint arity2
Maximum domain size150
Number of constraints which are defined in extension0
Number of constraints which are defined in intension11175
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/node52/watcher-191950-1168096411 -o ROOT/results/node52/solver-191950-1168096411 -C 1800 -M 900 /tmp/evaluation/191950-1168096411/VALCSP /tmp/evaluation/191950-1168096411/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: 0.08 0.43 1.15 4/68 950
/proc/meminfo: memFree=1414792/2055920 swapFree=4192812/4192956
[pid=949] ppid=947 vsize=2524 CPUtime=0
/proc/949/stat : 949 (VALCSP) R 947 949 32688 0 -1 4194304 313 0 0 0 0 0 0 0 18 0 1 0 158040499 2584576 291 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/949/statm: 631 291 65 8 0 303 0

[startup+0.103087 s]
/proc/loadavg: 0.08 0.43 1.15 4/68 950
/proc/meminfo: memFree=1414792/2055920 swapFree=4192812/4192956
[pid=949] ppid=947 vsize=4108 CPUtime=0.09
/proc/949/stat : 949 (VALCSP) R 947 949 32688 0 -1 4194304 697 0 0 0 9 0 0 0 18 0 1 0 158040499 4206592 675 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530948 0 0 4096 0 0 0 0 17 1 0 0
/proc/949/statm: 1027 675 65 8 0 699 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4108

[startup+0.511113 s]
/proc/loadavg: 0.08 0.43 1.15 4/68 950
/proc/meminfo: memFree=1414792/2055920 swapFree=4192812/4192956
[pid=949] ppid=947 vsize=10312 CPUtime=0.5
/proc/949/stat : 949 (VALCSP) R 947 949 32688 0 -1 4194304 2279 0 0 0 50 0 0 0 21 0 1 0 158040499 10559488 2257 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530960 0 0 4096 0 0 0 0 17 1 0 0
/proc/949/statm: 2578 2257 65 8 0 2250 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 10312

[startup+1.33117 s]
/proc/loadavg: 0.08 0.43 1.15 2/68 950
/proc/meminfo: memFree=1396104/2055920 swapFree=4192812/4192956
[pid=949] ppid=947 vsize=23380 CPUtime=1.32
/proc/949/stat : 949 (VALCSP) R 947 949 32688 0 -1 4194304 5534 0 0 0 130 2 0 0 25 0 1 0 158040499 23941120 5512 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530225 0 0 4096 0 0 0 0 17 1 0 0
/proc/949/statm: 5845 5512 65 8 0 5517 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 23380

[startup+2.96728 s]
/proc/loadavg: 0.15 0.44 1.15 2/68 950
/proc/meminfo: memFree=1378824/2055920 swapFree=4192812/4192956
[pid=949] ppid=947 vsize=48460 CPUtime=2.95
/proc/949/stat : 949 (VALCSP) R 947 949 32688 0 -1 4194304 11807 0 0 0 290 5 0 0 25 0 1 0 158040499 49623040 11785 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 4744827 0 0 4096 0 0 0 0 17 1 0 0
/proc/949/statm: 12115 11791 65 8 0 11787 0
Current children cumulated CPU time (s) 2.95
Current children cumulated vsize (KiB) 48460

[startup+6.24951 s]
/proc/loadavg: 0.15 0.44 1.15 3/74 956
/proc/meminfo: memFree=1307160/2055920 swapFree=4192812/4192956
[pid=949] ppid=947 vsize=100732 CPUtime=6.23
/proc/949/stat : 949 (VALCSP) R 947 949 32688 0 -1 4194304 24860 0 0 0 612 11 0 0 25 0 1 0 158040499 103149568 24838 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530198 0 0 4096 0 0 0 0 17 0 0 0
/proc/949/statm: 25183 24838 65 8 0 24855 0
Current children cumulated CPU time (s) 6.23
Current children cumulated vsize (KiB) 100732

[startup+12.7139 s]
/proc/loadavg: 0.44 0.49 1.16 3/74 956
/proc/meminfo: memFree=1195672/2055920 swapFree=4192812/4192956
[pid=949] ppid=947 vsize=206668 CPUtime=12.65
/proc/949/stat : 949 (VALCSP) R 947 949 32688 0 -1 4194304 51356 0 0 0 1245 20 0 0 25 0 1 0 158040499 211628032 51334 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530960 0 0 4096 0 0 0 0 17 0 0 0
/proc/949/statm: 51667 51334 65 8 0 51339 0
Current children cumulated CPU time (s) 12.65
Current children cumulated vsize (KiB) 206668

[startup+25.5198 s]
/proc/loadavg: 0.60 0.53 1.16 2/68 969
/proc/meminfo: memFree=1018304/2055920 swapFree=4192812/4192956
[pid=949] ppid=947 vsize=407416 CPUtime=25.37
/proc/949/stat : 949 (VALCSP) R 947 949 32688 0 -1 4194304 101568 0 0 0 2497 40 0 0 25 0 1 0 158040499 417193984 101546 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530207 0 0 4096 0 0 0 0 17 1 0 0
/proc/949/statm: 101854 101546 65 8 0 101526 0
Current children cumulated CPU time (s) 25.37
Current children cumulated vsize (KiB) 407416

[startup+51.1296 s]
/proc/loadavg: 0.73 0.56 1.15 2/68 970
/proc/meminfo: memFree=644360/2055920 swapFree=4192812/4192956
[pid=949] ppid=947 vsize=779916 CPUtime=50.98
/proc/949/stat : 949 (VALCSP) R 947 949 32688 0 -1 4194304 194712 0 0 0 5022 76 0 0 25 0 1 0 158040499 798633984 194690 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530264 0 0 4096 0 0 0 0 17 1 0 0
/proc/949/statm: 194979 194690 65 8 0 194651 0
Current children cumulated CPU time (s) 50.98
Current children cumulated vsize (KiB) 779916



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+60.8572 s]
/proc/loadavg: 0.77 0.58 1.15 2/68 972
/proc/meminfo: memFree=495112/2055920 swapFree=4192812/4192956
[pid=949] ppid=947 vsize=922720 CPUtime=60.72
/proc/949/stat : 949 (VALCSP) R 947 949 32688 0 -1 4194304 230411 0 0 0 5981 91 0 0 25 0 1 0 158040499 944865280 230389 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530192 0 0 4096 0 0 0 0 17 1 0 0
/proc/949/statm: 230680 230389 65 8 0 230352 0
Current children cumulated CPU time (s) 60.72
Current children cumulated vsize (KiB) 922720

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 61.0084
CPU time (s): 60.8667
CPU user time (s): 59.8129
CPU system time (s): 1.05384
CPU usage (%): 99.7677
Max. virtual memory (cumulated for all children) (KiB): 922720

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 59.8129
system time used= 1.05384
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 230411
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= 468

runsolver used 0.06299 s user time and 0.165974 s system time

The end



Launcher Data (download as text)




Begin job on node52 on Sat Jan  6 15:13:35 UTC 2007


IDJOB= 191950
IDBENCH= 3081
FILE ID= node52/191950-1168096411

PBS_JOBID= 3476741

Free space on /tmp= 66549 MiB

BENCH NAME= HOME/pub/bench/CPAI06/queens/queens-150.xml
COMMAND LINE= /tmp/evaluation/191950-1168096411/VALCSP /tmp/evaluation/191950-1168096411/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node52/watcher-191950-1168096411 -o ROOT/results/node52/solver-191950-1168096411 -C 1800 -M 900  /tmp/evaluation/191950-1168096411/VALCSP /tmp/evaluation/191950-1168096411/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  b0d89abe262117e726883b3c610dd5a5

RANDOM SEED= 446463067

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		: 3000.232
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		: 3000.232
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:       1415272 kB
Buffers:         41816 kB
Cached:         502388 kB
SwapCached:          0 kB
Active:         101448 kB
Inactive:       462968 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1415272 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            5076 kB
Writeback:           0 kB
Mapped:          30340 kB
Slab:            61948 kB
Committed_AS:  3205004 kB
PageTables:       1704 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= 66552 MiB



End job on node52 on Sat Jan  6 15:14:48 UTC 2007