Trace number 233564

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) 151.84 152.54

General information on the benchmark

Nametaillard/
os-taillard-15/os-taillard-15-95-8.xml
MD5SUMa3151f1debc9907d47b98ba4d4958549
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 benchmark5.9261
SatisfiableYES
(Un)Satisfiability was proved
Number of variables225
Number of constraints3150
Maximum constraint arity2
Maximum domain size903
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/node76/watcher-233564-1168326855 -o ROOT/results/node76/solver-233564-1168326855 -C 1800 -M 900 /tmp/evaluation/233564-1168326855/VALCSP /tmp/evaluation/233564-1168326855/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: 2.71 2.38 2.10 3/80 24612
/proc/meminfo: memFree=1458320/2055888 swapFree=4095388/4096564
[pid=24611] ppid=24609 vsize=3188 CPUtime=0
/proc/24611/stat : 24611 (VALCSP) R 24609 24611 21567 0 -1 4194304 537 0 0 0 0 0 0 0 18 0 1 0 181082700 3264512 515 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 5253163 0 0 4096 0 0 0 0 17 0 0 0
/proc/24611/statm: 797 520 62 8 0 468 0

[startup+0.103375 s]
/proc/loadavg: 2.71 2.38 2.10 3/80 24612
/proc/meminfo: memFree=1458320/2055888 swapFree=4095388/4096564
[pid=24611] ppid=24609 vsize=9676 CPUtime=0.09
/proc/24611/stat : 24611 (VALCSP) R 24609 24611 21567 0 -1 4194304 2164 0 0 0 9 0 0 0 18 0 1 0 181082700 9908224 2142 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530960 0 0 4096 0 0 0 0 17 0 0 0
/proc/24611/statm: 2419 2142 64 8 0 2090 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 9676

[startup+0.511444 s]
/proc/loadavg: 2.71 2.38 2.10 3/80 24612
/proc/meminfo: memFree=1458320/2055888 swapFree=4095388/4096564
[pid=24611] ppid=24609 vsize=9676 CPUtime=0.5
/proc/24611/stat : 24611 (VALCSP) R 24609 24611 21567 0 -1 4194304 2164 0 0 0 50 0 0 0 22 0 1 0 181082700 9908224 2142 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530234 0 0 4096 0 0 0 0 17 0 0 0
/proc/24611/statm: 2419 2142 64 8 0 2090 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 9676

[startup+1.33161 s]
/proc/loadavg: 2.71 2.38 2.10 3/80 24612
/proc/meminfo: memFree=1443856/2055888 swapFree=4095388/4096564
[pid=24611] ppid=24609 vsize=15748 CPUtime=1.32
/proc/24611/stat : 24611 (VALCSP) R 24609 24611 21567 0 -1 4194304 3680 0 0 0 131 1 0 0 25 0 1 0 181082700 16125952 3658 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 0 0 0
/proc/24611/statm: 3937 3658 64 8 0 3608 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 15748

[startup+2.96792 s]
/proc/loadavg: 2.71 2.38 2.10 3/80 24612
/proc/meminfo: memFree=1437904/2055888 swapFree=4095388/4096564
[pid=24611] ppid=24609 vsize=24856 CPUtime=2.95
/proc/24611/stat : 24611 (VALCSP) R 24609 24611 21567 0 -1 4194304 5956 0 0 0 293 2 0 0 25 0 1 0 181082700 25452544 5934 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530257 0 0 4096 0 0 0 0 17 0 0 0
/proc/24611/statm: 6214 5934 64 8 0 5885 0
Current children cumulated CPU time (s) 2.95
Current children cumulated vsize (KiB) 24856

[startup+6.25057 s]
/proc/loadavg: 2.65 2.37 2.09 3/80 24612
/proc/meminfo: memFree=1420000/2055888 swapFree=4095388/4096564
[pid=24611] ppid=24609 vsize=45844 CPUtime=6.21
/proc/24611/stat : 24611 (VALCSP) R 24609 24611 21567 0 -1 4194304 11200 0 0 0 617 4 0 0 25 0 1 0 181082700 46944256 11178 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530259 0 0 4096 0 0 0 0 17 0 0 0
/proc/24611/statm: 11461 11178 64 8 0 11132 0
Current children cumulated CPU time (s) 6.21
Current children cumulated vsize (KiB) 45844

[startup+12.7058 s]
/proc/loadavg: 2.60 2.36 2.09 3/80 24612
/proc/meminfo: memFree=1379128/2055888 swapFree=4095388/4096564
[pid=24611] ppid=24609 vsize=83464 CPUtime=12.64
/proc/24611/stat : 24611 (VALCSP) R 24609 24611 21567 0 -1 4194304 20610 0 0 0 1257 7 0 0 25 0 1 0 181082700 85467136 20588 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 0 0 0
/proc/24611/statm: 20866 20588 64 8 0 20537 0
Current children cumulated CPU time (s) 12.64
Current children cumulated vsize (KiB) 83464

[startup+25.5203 s]
/proc/loadavg: 2.47 2.34 2.09 3/80 24612
/proc/meminfo: memFree=1303992/2055888 swapFree=4095388/4096564
[pid=24611] ppid=24609 vsize=161476 CPUtime=25.4
/proc/24611/stat : 24611 (VALCSP) R 24609 24611 21567 0 -1 4194304 40084 0 0 0 2524 16 0 0 25 0 1 0 181082700 165351424 40062 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530960 0 0 4096 0 0 0 0 17 0 0 0
/proc/24611/statm: 40369 40062 64 8 0 40040 0
Current children cumulated CPU time (s) 25.4
Current children cumulated vsize (KiB) 161476

[startup+51.1424 s]
/proc/loadavg: 2.31 2.32 2.09 3/80 24612
/proc/meminfo: memFree=1143544/2055888 swapFree=4095388/4096564
[pid=24611] ppid=24609 vsize=315652 CPUtime=50.89
/proc/24611/stat : 24611 (VALCSP) R 24609 24611 21567 0 -1 4194304 78651 0 0 0 5059 30 0 0 25 0 1 0 181082700 323227648 78629 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530223 0 0 4096 0 0 0 0 17 0 0 0
/proc/24611/statm: 78913 78629 64 8 0 78584 0
Current children cumulated CPU time (s) 50.89
Current children cumulated vsize (KiB) 315652

[startup+102.386 s]
/proc/loadavg: 2.13 2.26 2.08 3/81 24613
/proc/meminfo: memFree=849264/2055888 swapFree=4095388/4096564
[pid=24611] ppid=24609 vsize=615160 CPUtime=101.9
/proc/24611/stat : 24611 (VALCSP) R 24609 24611 21567 0 -1 4194304 153511 0 0 0 10130 60 0 0 25 0 1 0 181082700 629923840 153489 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 0 0 0
/proc/24611/statm: 153790 153489 64 8 0 153461 0
Current children cumulated CPU time (s) 101.9
Current children cumulated vsize (KiB) 615160



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+152.403 s]
/proc/loadavg: 2.12 2.24 2.08 3/81 24613
/proc/meminfo: memFree=535088/2055888 swapFree=4095388/4096564
[pid=24611] ppid=24609 vsize=922852 CPUtime=151.7
/proc/24611/stat : 24611 (VALCSP) R 24609 24611 21567 0 -1 4194304 230444 0 0 0 15081 89 0 0 25 0 1 0 181082700 945000448 230422 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 0 0 0
/proc/24611/statm: 230713 230422 64 8 0 230384 0
Current children cumulated CPU time (s) 151.7
Current children cumulated vsize (KiB) 922852

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 152.54
CPU time (s): 151.84
CPU user time (s): 150.816
CPU system time (s): 1.02384
CPU usage (%): 99.5408
Max. virtual memory (cumulated for all children) (KiB): 922852

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 150.816
system time used= 1.02384
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 230444
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= 2010

runsolver used 0.168974 s user time and 0.383941 s system time

The end



Launcher Data (download as text)




Begin job on node76 on Tue Jan  9 07:14:16 UTC 2007


IDJOB= 233564
IDBENCH= 6616
FILE ID= node76/233564-1168326855

PBS_JOBID= 3502905

Free space on /tmp= 66646 MiB

BENCH NAME= HOME/pub/bench/CPAI06/taillard/os-taillard-15/os-taillard-15-95-8.xml
COMMAND LINE= /tmp/evaluation/233564-1168326855/VALCSP /tmp/evaluation/233564-1168326855/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node76/watcher-233564-1168326855 -o ROOT/results/node76/solver-233564-1168326855 -C 1800 -M 900  /tmp/evaluation/233564-1168326855/VALCSP /tmp/evaluation/233564-1168326855/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  a3151f1debc9907d47b98ba4d4958549

RANDOM SEED= 52790761

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		: 3000.254
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	: 6006.17
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		: 3000.254
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	: 5999.42
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055888 kB
MemFree:       1458736 kB
Buffers:         80032 kB
Cached:         415056 kB
SwapCached:        428 kB
Active:         196792 kB
Inactive:       327976 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055888 kB
LowFree:       1458736 kB
SwapTotal:     4096564 kB
SwapFree:      4095388 kB
Dirty:             504 kB
Writeback:           0 kB
Mapped:          39848 kB
Slab:            58144 kB
Committed_AS:  6857308 kB
PageTables:       1772 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264388 kB
VmallocChunk: 536606243 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66646 MiB



End job on node76 on Tue Jan  9 07:16:49 UTC 2007