Trace number 358685

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 2007-03-23UNSAT 21.2658 21.2732

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111212923.opb
MD5SUMcc2d76dc5b530413fdad6ab7aa6e34c6
Bench CategorySATUNSAT-SMALLINT-LIN (no optimisation, small integers, linear constraints)
Best result obtained on this benchmarkUNSAT
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark0.478927
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables169
Total number of constraints101
Number of constraints which are clauses30
Number of constraints which are cardinality constraints (but not clauses)70
Number of constraints which are nor clauses,nor cardinality constraints1
Minimum length of a constraint2
Maximum length of a constraint169
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 38
Number of bits of the biggest number in a constraint 6
Biggest sum of numbers in a constraint 1230
Number of bits of the biggest sum of numbers11
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/358685-1176916968/instance-358685-1176916968.opb ......
21.18/21.26	c done parsing opb.
21.18/21.26	s UNSATISFIABLE
21.18/21.26	c Total Run Time					21.2588

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/358685-1176916968/instance-358685-1176916968.opb is already a linear file

Watcher Data (download as text)

runsolver version 3.2.2 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node2/watcher-358685-1176916968 -o ROOT/results/node2/solver-358685-1176916968 -C 1800 -W 3600 -M 1800 --output-limit 1,15 /tmp/evaluation/358685-1176916968/PBS4 /tmp/evaluation/358685-1176916968/instance-358685-1176916968.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: 0.99 1.00 1.00 3/77 21156
/proc/meminfo: memFree=1491960/2055920 swapFree=4149056/4192956
[pid=21156] ppid=21154 vsize=1320 CPUtime=0
/proc/21156/stat : 21156 (PBS4) R 21154 21156 20788 0 -1 4194304 143 0 0 0 0 0 0 0 18 0 1 0 167734640 1351680 125 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21156/statm: 330 125 92 219 0 107 0

[startup+0.00811302 s]
/proc/loadavg: 0.99 1.00 1.00 3/77 21156
/proc/meminfo: memFree=1491960/2055920 swapFree=4149056/4192956
[pid=21156] ppid=21154 vsize=1320 CPUtime=0
/proc/21156/stat : 21156 (PBS4) R 21154 21156 20788 0 -1 4194304 144 0 0 0 0 0 0 0 18 0 1 0 167734640 1351680 126 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134547794 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21156/statm: 330 126 92 219 0 107 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 1320

[startup+0.101122 s]
/proc/loadavg: 0.99 1.00 1.00 3/77 21156
/proc/meminfo: memFree=1491960/2055920 swapFree=4149056/4192956
[pid=21156] ppid=21154 vsize=1452 CPUtime=0.09
/proc/21156/stat : 21156 (PBS4) R 21154 21156 20788 0 -1 4194304 210 0 0 0 9 0 0 0 18 0 1 0 167734640 1486848 192 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21156/statm: 363 192 92 219 0 140 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1452

[startup+0.301143 s]
/proc/loadavg: 0.99 1.00 1.00 3/77 21156
/proc/meminfo: memFree=1491960/2055920 swapFree=4149056/4192956
[pid=21156] ppid=21154 vsize=2384 CPUtime=0.29
/proc/21156/stat : 21156 (PBS4) R 21154 21156 20788 0 -1 4194304 329 0 0 0 29 0 0 0 19 0 1 0 167734640 2441216 311 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21156/statm: 596 311 93 219 0 373 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2384

[startup+0.701184 s]
/proc/loadavg: 0.99 1.00 1.00 3/77 21156
/proc/meminfo: memFree=1491960/2055920 swapFree=4149056/4192956
[pid=21156] ppid=21154 vsize=3604 CPUtime=0.69
/proc/21156/stat : 21156 (PBS4) R 21154 21156 20788 0 -1 4194304 545 0 0 0 69 0 0 0 22 0 1 0 167734640 3690496 527 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21156/statm: 901 527 93 219 0 678 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3604

[startup+1.50127 s]
/proc/loadavg: 0.99 1.00 1.00 2/78 21157
/proc/meminfo: memFree=1489712/2055920 swapFree=4149056/4192956
[pid=21156] ppid=21154 vsize=4060 CPUtime=1.49
/proc/21156/stat : 21156 (PBS4) R 21154 21156 20788 0 -1 4194304 887 0 0 0 149 0 0 0 25 0 1 0 167734640 4157440 820 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21156/statm: 1015 820 94 219 0 792 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 4060

[startup+3.10143 s]
/proc/loadavg: 0.99 1.00 1.00 2/78 21157
/proc/meminfo: memFree=1488176/2055920 swapFree=4149056/4192956
[pid=21156] ppid=21154 vsize=6896 CPUtime=3.09
/proc/21156/stat : 21156 (PBS4) R 21154 21156 20788 0 -1 4194304 1394 0 0 0 308 1 0 0 25 0 1 0 167734640 7061504 1230 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21156/statm: 1724 1230 94 219 0 1501 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 6896

[startup+6.30177 s]
/proc/loadavg: 0.99 1.00 1.00 2/78 21157
/proc/meminfo: memFree=1485936/2055920 swapFree=4149056/4192956
[pid=21156] ppid=21154 vsize=11396 CPUtime=6.29
/proc/21156/stat : 21156 (PBS4) R 21154 21156 20788 0 -1 4194304 1851 0 0 0 627 2 0 0 25 0 1 0 167734640 11669504 1687 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21156/statm: 2849 1687 94 219 0 2626 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 11396

[startup+12.7014 s]
/proc/loadavg: 0.99 1.00 1.00 2/78 21157
/proc/meminfo: memFree=1482992/2055920 swapFree=4149056/4192956
[pid=21156] ppid=21154 vsize=13040 CPUtime=12.69
/proc/21156/stat : 21156 (PBS4) R 21154 21156 20788 0 -1 4194304 2624 0 0 0 1265 4 0 0 25 0 1 0 167734640 13352960 2267 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21156/statm: 3260 2267 94 219 0 3037 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 13040

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

[startup+15.9018 s]
/proc/loadavg: 0.99 1.00 1.00 2/78 21157
/proc/meminfo: memFree=1482352/2055920 swapFree=4149056/4192956
[pid=21156] ppid=21154 vsize=13380 CPUtime=15.88
/proc/21156/stat : 21156 (PBS4) R 21154 21156 20788 0 -1 4194304 2779 0 0 0 1583 5 0 0 25 0 1 0 167734640 13701120 2422 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21156/statm: 3345 2422 94 219 0 3122 0
Current children cumulated CPU time (s) 15.88
Current children cumulated vsize (KiB) 13380

[startup+19.1011 s]
/proc/loadavg: 0.99 1.00 1.00 2/78 21157
/proc/meminfo: memFree=1480880/2055920 swapFree=4149056/4192956
[pid=21156] ppid=21154 vsize=15500 CPUtime=19.08
/proc/21156/stat : 21156 (PBS4) R 21154 21156 20788 0 -1 4194304 3525 0 0 0 1902 6 0 0 25 0 1 0 167734640 15872000 2783 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134559502 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21156/statm: 3875 2783 94 219 0 3652 0
Current children cumulated CPU time (s) 19.08
Current children cumulated vsize (KiB) 15500

[startup+19.9012 s]
/proc/loadavg: 0.99 1.00 1.00 2/78 21157
/proc/meminfo: memFree=1480688/2055920 swapFree=4149056/4192956
[pid=21156] ppid=21154 vsize=15696 CPUtime=19.89
/proc/21156/stat : 21156 (PBS4) R 21154 21156 20788 0 -1 4194304 3561 0 0 0 1982 7 0 0 25 0 1 0 167734640 16072704 2819 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21156/statm: 3924 2819 94 219 0 3701 0
Current children cumulated CPU time (s) 19.89
Current children cumulated vsize (KiB) 15696

[startup+20.7013 s]
/proc/loadavg: 0.99 1.00 1.00 2/78 21157
/proc/meminfo: memFree=1480688/2055920 swapFree=4149056/4192956
[pid=21156] ppid=21154 vsize=15696 CPUtime=20.69
/proc/21156/stat : 21156 (PBS4) R 21154 21156 20788 0 -1 4194304 3575 0 0 0 2062 7 0 0 25 0 1 0 167734640 16072704 2833 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21156/statm: 3924 2833 94 219 0 3701 0
Current children cumulated CPU time (s) 20.69
Current children cumulated vsize (KiB) 15696

[startup+21.1013 s]
/proc/loadavg: 0.99 1.00 1.00 2/78 21157
/proc/meminfo: memFree=1480560/2055920 swapFree=4149056/4192956
[pid=21156] ppid=21154 vsize=15696 CPUtime=21.08
/proc/21156/stat : 21156 (PBS4) R 21154 21156 20788 0 -1 4194304 3649 0 0 0 2101 7 0 0 25 0 1 0 167734640 16072704 2907 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21156/statm: 3924 2907 94 219 0 3701 0
Current children cumulated CPU time (s) 21.08
Current children cumulated vsize (KiB) 15696

[startup+21.2013 s]
/proc/loadavg: 0.99 1.00 1.00 2/78 21157
/proc/meminfo: memFree=1480560/2055920 swapFree=4149056/4192956
[pid=21156] ppid=21154 vsize=15696 CPUtime=21.18
/proc/21156/stat : 21156 (PBS4) R 21154 21156 20788 0 -1 4194304 3664 0 0 0 2111 7 0 0 25 0 1 0 167734640 16072704 2922 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21156/statm: 3924 2922 94 219 0 3701 0
Current children cumulated CPU time (s) 21.18
Current children cumulated vsize (KiB) 15696

Child status: 0
Real time (s): 21.2732
CPU time (s): 21.2658
CPU user time (s): 21.1858
CPU system time (s): 0.079987
CPU usage (%): 99.9648
Max. virtual memory (cumulated for all children) (KiB): 15696

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 21.1858
system time used= 0.079987
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3691
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= 23

runsolver used 0.024996 second user time and 0.056991 second system time

The end

Launcher Data (download as text)

Begin job on node2 on Wed Apr 18 17:22:48 UTC 2007

IDJOB= 358685
IDBENCH= 1232
IDSOLVER= 157
FILE ID= node2/358685-1176916968

PBS_JOBID= 4595261

Free space on /tmp= 66400 MiB

SOLVER NAME= PBS4 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1111212923.opb
COMMAND LINE= /tmp/evaluation/358685-1176916968/PBS4 /tmp/evaluation/358685-1176916968/instance-358685-1176916968.opb            
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node2/convwatcher-358685-1176916968 -o ROOT/results/node2/conversion-358685-1176916968 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/358685-1176916968/instance-358685-1176916968.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node2/watcher-358685-1176916968 -o ROOT/results/node2/solver-358685-1176916968 -C 1800 -W 3600 -M 1800 --output-limit 1,15  /tmp/evaluation/358685-1176916968/PBS4 /tmp/evaluation/358685-1176916968/instance-358685-1176916968.opb            

META MD5SUM SOLVER= b6c24e28fef9e1efa7891be58ea9e46f
MD5SUM BENCH=  cc2d76dc5b530413fdad6ab7aa6e34c6

RANDOM SEED= 395621091

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node2.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		: 3000.234
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		: 3000.234
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:       1492368 kB
Buffers:         28956 kB
Cached:         446680 kB
SwapCached:      12264 kB
Active:          72512 kB
Inactive:       426704 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1492368 kB
SwapTotal:     4192956 kB
SwapFree:      4149056 kB
Dirty:            1156 kB
Writeback:           0 kB
Mapped:          30592 kB
Slab:            49756 kB
Committed_AS:  7129360 kB
PageTables:       1860 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= 66400 MiB

End job on node2 on Wed Apr 18 17:23:10 UTC 2007