Trace number 420868

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
PBS4 2007-03-23Signal 4.22636 4.22989

General information on the benchmark

Namenormalized-PB07/PURE-SAT/SAT07/crafted/Difficult/contest05/sabharwal/
grid-pebbling-unsat-grid-pbl-0300.sat05-1350.sat05-1350.reshuffled-07.opb
MD5SUMa882d3f06de9dc1339a0d54393ca9b95
Bench CategoryPURE-SAT (instances containing only clauses)
Best result obtained on this benchmark
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Has Objective FunctionNO
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of variables90300
Total number of constraints179702
Number of constraints which are clauses179702
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint1
Maximum length of a constraint4
Number of terms in the objective function 0
Biggest coefficient in the objective function 0
Number of bits for the biggest coefficient in the objective function 0
Sum of the numbers in the objective function 0
Number of bits of the sum of numbers in the objective function 0
Biggest number in a constraint 3
Number of bits of the biggest number in a constraint 2
Biggest sum of numbers in a constraint 7
Number of bits of the biggest sum of numbers3
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data (download as text)

0.00/0.00	c PBS v4 by Bashar Al-Rawi & Fadi Aloul
0.00/0.00	c Solving /tmp/evaluation/420868-1177433375/instance-420868-1177433375.opb ......

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/420868-1177433375/instance-420868-1177433375.opb is already a linear file

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node50/watcher-420868-1177433375 -o ROOT/results/node50/solver-420868-1177433375 -C 1800 -W 3600 -M 1800 --output-limit 1,15 /tmp/evaluation/420868-1177433375/PBS4 /tmp/evaluation/420868-1177433375/instance-420868-1177433375.opb 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 3600 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.91 0.97 0.99 3/64 11587
/proc/meminfo: memFree=1869816/2055920 swapFree=4183592/4192956
[pid=11587] ppid=11585 vsize=9792 CPUtime=0
/proc/11587/stat : 11587 (PBS4) R 11585 11587 10732 0 -1 4194304 480 0 0 0 0 0 0 0 18 0 1 0 98182833 10027008 463 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134572935 0 0 4096 0 0 0 0 17 1 0 0
/proc/11587/statm: 2448 467 81 219 0 2225 0

[startup+0.046736 s]
/proc/loadavg: 0.91 0.97 0.99 3/64 11587
/proc/meminfo: memFree=1869816/2055920 swapFree=4183592/4192956
[pid=11587] ppid=11585 vsize=13660 CPUtime=0.04
/proc/11587/stat : 11587 (PBS4) R 11585 11587 10732 0 -1 4194304 3268 0 0 0 3 1 0 0 18 0 1 0 98182833 13987840 3153 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134793013 0 0 4096 0 0 0 0 17 1 0 0
/proc/11587/statm: 3415 3153 88 219 0 3192 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 13660

[startup+0.10174 s]
/proc/loadavg: 0.91 0.97 0.99 3/64 11587
/proc/meminfo: memFree=1869816/2055920 swapFree=4183592/4192956
[pid=11587] ppid=11585 vsize=14268 CPUtime=0.09
/proc/11587/stat : 11587 (PBS4) R 11585 11587 10732 0 -1 4194304 3467 0 0 0 8 1 0 0 18 0 1 0 98182833 14610432 3352 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134596339 0 0 4096 0 0 0 0 17 1 0 0
/proc/11587/statm: 3567 3353 88 219 0 3344 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 14268

[startup+0.301757 s]
/proc/loadavg: 0.91 0.97 0.99 3/64 11587
/proc/meminfo: memFree=1869816/2055920 swapFree=4183592/4192956
[pid=11587] ppid=11585 vsize=16900 CPUtime=0.29
/proc/11587/stat : 11587 (PBS4) R 11585 11587 10732 0 -1 4194304 4036 0 0 0 28 1 0 0 19 0 1 0 98182833 17305600 3872 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134529809 0 0 4096 0 0 0 0 17 1 0 0
/proc/11587/statm: 4225 3873 89 219 0 4002 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 16900

[startup+0.701793 s]
/proc/loadavg: 0.91 0.97 0.99 3/64 11587
/proc/meminfo: memFree=1869816/2055920 swapFree=4183592/4192956
[pid=11587] ppid=11585 vsize=20140 CPUtime=0.69
/proc/11587/stat : 11587 (PBS4) R 11585 11587 10732 0 -1 4194304 4828 0 0 0 68 1 0 0 22 0 1 0 98182833 20623360 4567 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134529723 0 0 4096 0 0 0 0 17 1 0 0
/proc/11587/statm: 5035 4567 89 219 0 4812 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 20140

[startup+1.50186 s]
/proc/loadavg: 0.91 0.97 0.99 2/65 11588
/proc/meminfo: memFree=1850352/2055920 swapFree=4183592/4192956
[pid=11587] ppid=11585 vsize=25596 CPUtime=1.49
/proc/11587/stat : 11587 (PBS4) R 11585 11587 10732 0 -1 4194304 6260 0 0 0 147 2 0 0 25 0 1 0 98182833 26210304 5421 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134529910 0 0 4096 0 0 0 0 17 1 0 0
/proc/11587/statm: 6399 5421 89 219 0 6176 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 25596

[startup+3.102 s]
/proc/loadavg: 0.91 0.97 0.99 2/65 11588
/proc/meminfo: memFree=1846000/2055920 swapFree=4183592/4192956
[pid=11587] ppid=11585 vsize=33424 CPUtime=3.09
/proc/11587/stat : 11587 (PBS4) R 11585 11587 10732 0 -1 4194304 8313 0 0 0 305 4 0 0 25 0 1 0 98182833 34226176 6705 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134518179 0 0 4096 0 0 0 0 17 1 0 0
/proc/11587/statm: 8356 6705 89 219 0 8133 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 33424

Solver just ended. Dumping a history of the last processes samples

[startup+3.90107 s]
/proc/loadavg: 0.91 0.97 0.99 2/65 11588
/proc/meminfo: memFree=1842608/2055920 swapFree=4183592/4192956
[pid=11587] ppid=11585 vsize=33784 CPUtime=3.89
/proc/11587/stat : 11587 (PBS4) R 11585 11587 10732 0 -1 4194304 8965 0 0 0 385 4 0 0 25 0 1 0 98182833 34594816 7357 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134784767 0 0 4096 0 0 0 0 17 1 0 0
/proc/11587/statm: 8446 7357 89 219 0 8223 0
Current children cumulated CPU time (s) 3.89
Current children cumulated vsize (KiB) 33784

[startup+4.10109 s]
/proc/loadavg: 0.91 0.97 0.99 2/65 11588
/proc/meminfo: memFree=1842608/2055920 swapFree=4183592/4192956
[pid=11587] ppid=11585 vsize=44412 CPUtime=4.09
/proc/11587/stat : 11587 (PBS4) R 11585 11587 10732 0 -1 4195840 11612 0 0 0 404 5 0 0 25 0 1 0 98182833 45477888 7884 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134587718 0 0 4096 0 0 0 0 17 1 0 0
/proc/11587/statm: 11103 7884 90 219 0 10880 0
Current children cumulated CPU time (s) 4.09
Current children cumulated vsize (KiB) 44412

[startup+4.2011 s]
/proc/loadavg: 0.91 0.97 0.99 2/65 11588
/proc/meminfo: memFree=1842608/2055920 swapFree=4183592/4192956
[pid=11587] ppid=11585 vsize=44412 CPUtime=4.19
/proc/11587/stat : 11587 (PBS4) R 11585 11587 10732 0 -1 4195840 12867 0 0 0 404 15 0 0 25 0 1 0 98182833 45477888 7884 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134587718 0 0 4096 0 0 0 0 17 1 0 0
/proc/11587/statm: 11103 7884 90 219 0 10880 0
Current children cumulated CPU time (s) 4.19
Current children cumulated vsize (KiB) 44412

Child ended because it received signal 11 (SIGSEGV)
Real time (s): 4.22989
CPU time (s): 4.22636
CPU user time (s): 4.04439
CPU system time (s): 0.181972
CPU usage (%): 99.9165
Max. virtual memory (cumulated for all children) (KiB): 44412

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.04439
system time used= 0.181972
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 13162
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= 8
involuntary context switches= 11

runsolver used 0.007998 second user time and 0.012998 second system time

The end

Launcher Data (download as text)

Begin job on node50 on Tue Apr 24 16:49:36 UTC 2007

IDJOB= 420868
IDBENCH= 47876
IDSOLVER= 157
FILE ID= node50/420868-1177433375

PBS_JOBID= 4675769

Free space on /tmp= 66499 MiB

SOLVER NAME= PBS4 2007-03-23
BENCH NAME= HOME/pub/bench/PB07/normalized-PB07/PURE-SAT/SAT07/crafted/Difficult/contest05/sabharwal/grid-pebbling-unsat-grid-pbl-0300.sat05-1350.sat05-1350.reshuffled-07.opb
COMMAND LINE= /tmp/evaluation/420868-1177433375/PBS4 /tmp/evaluation/420868-1177433375/instance-420868-1177433375.opb            
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node50/convwatcher-420868-1177433375 -o ROOT/results/node50/conversion-420868-1177433375 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/420868-1177433375/instance-420868-1177433375.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node50/watcher-420868-1177433375 -o ROOT/results/node50/solver-420868-1177433375 -C 1800 -W 3600 -M 1800 --output-limit 1,15  /tmp/evaluation/420868-1177433375/PBS4 /tmp/evaluation/420868-1177433375/instance-420868-1177433375.opb            

META MD5SUM SOLVER= b6c24e28fef9e1efa7891be58ea9e46f
MD5SUM BENCH=  a882d3f06de9dc1339a0d54393ca9b95

RANDOM SEED= 71912218

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node50.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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:       1870224 kB
Buffers:         11100 kB
Cached:         131936 kB
SwapCached:       4184 kB
Active:          75076 kB
Inactive:        79272 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1870224 kB
SwapTotal:     4192956 kB
SwapFree:      4183592 kB
Dirty:            9600 kB
Writeback:           0 kB
Mapped:          15912 kB
Slab:            17344 kB
Committed_AS:  2934220 kB
PageTables:       1464 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= 66468 MiB

End job on node50 on Tue Apr 24 16:49:41 UTC 2007