Trace number 233674

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) 166.182 168.405

General information on the benchmark

Nametaillard/os-taillard-15/
os-taillard-15-105-1.xml
MD5SUMa2fec2135601327cf8139475a92a1e5b
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 benchmark0.296954
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables225
Number of constraints3150
Maximum constraint arity2
Maximum domain size1005
Number of constraints which are defined in extension0
Number of constraints which are defined in intension3150
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/node40/watcher-233674-1168327304 -o ROOT/results/node40/solver-233674-1168327304 -C 1800 -M 900 /tmp/evaluation/233674-1168327304/VALCSP /tmp/evaluation/233674-1168327304/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: 1.05 1.63 1.82 6/69 21851
/proc/meminfo: memFree=1464744/2055920 swapFree=4192812/4192956
[pid=21850] ppid=21842 vsize=2128 CPUtime=0
/proc/21850/stat : 21850 (VALCSP) R 21842 21850 21740 0 -1 4194304 266 0 0 0 0 0 0 0 20 0 1 0 181129695 2179072 244 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 7353666 0 0 4096 0 0 0 0 17 1 0 0
/proc/21850/statm: 532 244 62 8 0 204 0

[startup+0.103058 s]
/proc/loadavg: 1.05 1.63 1.82 6/69 21851
/proc/meminfo: memFree=1464744/2055920 swapFree=4192812/4192956
[pid=21850] ppid=21842 vsize=10864 CPUtime=0.09
/proc/21850/stat : 21850 (VALCSP) R 21842 21850 21740 0 -1 4194304 2445 0 0 0 8 1 0 0 20 0 1 0 181129695 11124736 2423 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/21850/statm: 2716 2423 64 8 0 2388 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 10864

[startup+0.5111 s]
/proc/loadavg: 1.05 1.63 1.82 6/69 21851
/proc/meminfo: memFree=1464744/2055920 swapFree=4192812/4192956
[pid=21850] ppid=21842 vsize=10864 CPUtime=0.5
/proc/21850/stat : 21850 (VALCSP) R 21842 21850 21740 0 -1 4194304 2445 0 0 0 49 1 0 0 23 0 1 0 181129695 11124736 2423 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 1 0 0
/proc/21850/statm: 2716 2423 64 8 0 2388 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 10864

[startup+1.33221 s]
/proc/loadavg: 1.29 1.67 1.83 4/84 21867
/proc/meminfo: memFree=1426416/2055920 swapFree=4192812/4192956
[pid=21850] ppid=21842 vsize=14428 CPUtime=1.31
/proc/21850/stat : 21850 (VALCSP) R 21842 21850 21740 0 -1 4194304 3349 0 0 0 130 1 0 0 25 0 1 0 181129695 14774272 3327 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530948 0 0 4096 0 0 0 0 17 1 0 0
/proc/21850/statm: 3607 3327 64 8 0 3279 0
Current children cumulated CPU time (s) 1.31
Current children cumulated vsize (KiB) 14428

[startup+2.96942 s]
/proc/loadavg: 1.29 1.67 1.83 3/84 21867
/proc/meminfo: memFree=1330096/2055920 swapFree=4192812/4192956
[pid=21850] ppid=21842 vsize=21688 CPUtime=2.72
/proc/21850/stat : 21850 (VALCSP) R 21842 21850 21740 0 -1 4194304 5148 0 0 0 270 2 0 0 25 0 1 0 181129695 22208512 5126 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530249 0 0 4096 0 0 0 0 17 1 0 0
/proc/21850/statm: 5422 5126 64 8 0 5094 0
Current children cumulated CPU time (s) 2.72
Current children cumulated vsize (KiB) 21688

[startup+6.25684 s]
/proc/loadavg: 1.34 1.68 1.83 3/84 21867
/proc/meminfo: memFree=1247216/2055920 swapFree=4192812/4192956
[pid=21850] ppid=21842 vsize=39508 CPUtime=5.98
/proc/21850/stat : 21850 (VALCSP) R 21842 21850 21740 0 -1 4194304 9624 0 0 0 594 4 0 0 25 0 1 0 181129695 40456192 9602 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/21850/statm: 9877 9602 64 8 0 9549 0
Current children cumulated CPU time (s) 5.98
Current children cumulated vsize (KiB) 39508

[startup+12.7177 s]
/proc/loadavg: 1.39 1.68 1.83 3/84 21867
/proc/meminfo: memFree=1091832/2055920 swapFree=4192812/4192956
[pid=21850] ppid=21842 vsize=71980 CPUtime=12.34
/proc/21850/stat : 21850 (VALCSP) R 21842 21850 21740 0 -1 4194304 17726 0 0 0 1226 8 0 0 25 0 1 0 181129695 73707520 17704 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 1 0 0
/proc/21850/statm: 17995 17704 64 8 0 17667 0
Current children cumulated CPU time (s) 12.34
Current children cumulated vsize (KiB) 71980

[startup+25.5343 s]
/proc/loadavg: 1.49 1.69 1.83 5/84 21867
/proc/meminfo: memFree=821568/2055920 swapFree=4192812/4192956
[pid=21850] ppid=21842 vsize=135736 CPUtime=24.68
/proc/21850/stat : 21850 (VALCSP) R 21842 21850 21740 0 -1 4194304 33677 0 0 0 2453 15 0 0 25 0 1 0 181129695 138993664 33655 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134531019 0 0 4096 0 0 0 0 17 1 0 0
/proc/21850/statm: 33934 33655 64 8 0 33606 0
Current children cumulated CPU time (s) 24.68
Current children cumulated vsize (KiB) 135736

[startup+51.2097 s]
/proc/loadavg: 1.81 1.75 1.85 3/84 21867
/proc/meminfo: memFree=462976/2055920 swapFree=4192812/4192956
[pid=21850] ppid=21842 vsize=271036 CPUtime=49.72
/proc/21850/stat : 21850 (VALCSP) R 21842 21850 21740 0 -1 4194304 67502 0 0 0 4943 29 0 0 25 0 1 0 181129695 277540864 67480 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530267 0 0 4096 0 0 0 0 17 0 0 0
/proc/21850/statm: 67759 67480 64 8 0 67431 0
Current children cumulated CPU time (s) 49.72
Current children cumulated vsize (KiB) 271036

[startup+102.412 s]
/proc/loadavg: 2.40 1.91 1.89 3/84 21867
/proc/meminfo: memFree=175360/2055920 swapFree=4192812/4192956
[pid=21850] ppid=21842 vsize=559720 CPUtime=100.7
/proc/21850/stat : 21850 (VALCSP) R 21842 21850 21740 0 -1 4194304 139654 0 0 0 9999 71 0 0 25 0 1 0 181129695 573153280 139632 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 0 0 0
/proc/21850/statm: 139930 139632 64 8 0 139602 0
Current children cumulated CPU time (s) 100.7
Current children cumulated vsize (KiB) 559720

[startup+162.509 s]
/proc/loadavg: 2.15 1.92 1.90 3/84 21867
/proc/meminfo: memFree=15872/2055920 swapFree=4192812/4192956
[pid=21850] ppid=21842 vsize=890644 CPUtime=160.38
/proc/21850/stat : 21850 (VALCSP) R 21842 21850 21740 0 -1 4194304 222385 0 0 0 15916 122 0 0 25 0 1 0 181129695 912019456 222363 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 0 0 0
/proc/21850/statm: 222661 222363 64 8 0 222333 0
Current children cumulated CPU time (s) 160.38
Current children cumulated vsize (KiB) 890644



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+168.255 s]
/proc/loadavg: 2.13 1.92 1.90 3/84 21867
/proc/meminfo: memFree=16128/2055920 swapFree=4192812/4192956
[pid=21850] ppid=21842 vsize=923380 CPUtime=166.03
/proc/21850/stat : 21850 (VALCSP) R 21842 21850 21740 0 -1 4194304 230567 0 0 0 16476 127 0 0 25 0 1 0 181129695 945541120 230545 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 0 0 0
/proc/21850/statm: 230845 230545 64 8 0 230517 0
Current children cumulated CPU time (s) 166.03
Current children cumulated vsize (KiB) 923380

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 168.405
CPU time (s): 166.182
CPU user time (s): 164.769
CPU system time (s): 1.41279
CPU usage (%): 98.6797
Max. virtual memory (cumulated for all children) (KiB): 923380

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 164.769
system time used= 1.41278
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 230567
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= 4787

runsolver used 0.170974 s user time and 0.485926 s system time

The end



Launcher Data (download as text)




Begin job on node40 on Tue Jan  9 07:21:44 UTC 2007


IDJOB= 233674
IDBENCH= 6625
FILE ID= node40/233674-1168327304

PBS_JOBID= 3503241

Free space on /tmp= 66552 MiB

BENCH NAME= HOME/pub/bench/CPAI06/taillard/os-taillard-15/os-taillard-15-105-1.xml
COMMAND LINE= /tmp/evaluation/233674-1168327304/VALCSP /tmp/evaluation/233674-1168327304/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node40/watcher-233674-1168327304 -o ROOT/results/node40/solver-233674-1168327304 -C 1800 -M 900  /tmp/evaluation/233674-1168327304/VALCSP /tmp/evaluation/233674-1168327304/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  a2fec2135601327cf8139475a92a1e5b

RANDOM SEED= 333530787

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		: 3000.239
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		: 3000.239
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:       1465024 kB
Buffers:         53536 kB
Cached:         438172 kB
SwapCached:          0 kB
Active:          63816 kB
Inactive:       448248 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1465024 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3548 kB
Writeback:           0 kB
Mapped:          30532 kB
Slab:            64432 kB
Committed_AS:  3976056 kB
PageTables:       1712 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 node40 on Tue Jan  9 07:24:32 UTC 2007