Trace number 358405

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 20.2339 20.2414

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111222539.opb
MD5SUM85b1a2d6763bafe7f0a209fbd0ea6a94
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 benchmark0.024995
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 1192
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/358405-1176915079/instance-358405-1176915079.opb ......
20.19/20.23	c done parsing opb.
20.19/20.23	s UNSATISFIABLE
20.19/20.23	c Total Run Time					20.2279

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/358405-1176915079/instance-358405-1176915079.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/node27/watcher-358405-1176915079 -o ROOT/results/node27/solver-358405-1176915079 -C 1800 -W 3600 -M 1800 --output-limit 1,15 /tmp/evaluation/358405-1176915079/PBS4 /tmp/evaluation/358405-1176915079/instance-358405-1176915079.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: 0.98 0.98 0.99 3/65 18316
/proc/meminfo: memFree=1171744/2055920 swapFree=4179792/4192956
[pid=18316] ppid=18314 vsize=1320 CPUtime=0
/proc/18316/stat : 18316 (PBS4) R 18314 18316 16905 0 -1 4194304 143 0 0 0 0 0 0 0 18 0 1 0 104203803 1351680 125 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/18316/statm: 330 125 92 219 0 107 0

[startup+0.0170231 s]
/proc/loadavg: 0.98 0.98 0.99 3/65 18316
/proc/meminfo: memFree=1171744/2055920 swapFree=4179792/4192956
[pid=18316] ppid=18314 vsize=1320 CPUtime=0.01
/proc/18316/stat : 18316 (PBS4) R 18314 18316 16905 0 -1 4194304 152 0 0 0 1 0 0 0 18 0 1 0 104203803 1351680 134 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/18316/statm: 330 134 92 219 0 107 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 1320

[startup+0.10103 s]
/proc/loadavg: 0.98 0.98 0.99 3/65 18316
/proc/meminfo: memFree=1171744/2055920 swapFree=4179792/4192956
[pid=18316] ppid=18314 vsize=1452 CPUtime=0.09
/proc/18316/stat : 18316 (PBS4) R 18314 18316 16905 0 -1 4194304 208 0 0 0 9 0 0 0 18 0 1 0 104203803 1486848 190 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/18316/statm: 363 190 92 219 0 140 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1452

[startup+0.30105 s]
/proc/loadavg: 0.98 0.98 0.99 3/65 18316
/proc/meminfo: memFree=1171744/2055920 swapFree=4179792/4192956
[pid=18316] ppid=18314 vsize=2384 CPUtime=0.29
/proc/18316/stat : 18316 (PBS4) R 18314 18316 16905 0 -1 4194304 326 0 0 0 29 0 0 0 19 0 1 0 104203803 2441216 308 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/18316/statm: 596 308 93 219 0 373 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2384

[startup+0.701091 s]
/proc/loadavg: 0.98 0.98 0.99 3/65 18316
/proc/meminfo: memFree=1171744/2055920 swapFree=4179792/4192956
[pid=18316] ppid=18314 vsize=3604 CPUtime=0.69
/proc/18316/stat : 18316 (PBS4) R 18314 18316 16905 0 -1 4194304 542 0 0 0 69 0 0 0 22 0 1 0 104203803 3690496 524 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/18316/statm: 901 524 93 219 0 678 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3604

[startup+1.50117 s]
/proc/loadavg: 0.98 0.98 0.99 2/66 18317
/proc/meminfo: memFree=1169624/2055920 swapFree=4179792/4192956
[pid=18316] ppid=18314 vsize=3928 CPUtime=1.49
/proc/18316/stat : 18316 (PBS4) R 18314 18316 16905 0 -1 4194304 857 0 0 0 149 0 0 0 25 0 1 0 104203803 4022272 790 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/18316/statm: 982 790 94 219 0 759 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 3928

[startup+3.10134 s]
/proc/loadavg: 0.98 0.98 0.99 2/66 18317
/proc/meminfo: memFree=1168024/2055920 swapFree=4179792/4192956
[pid=18316] ppid=18314 vsize=6760 CPUtime=3.09
/proc/18316/stat : 18316 (PBS4) R 18314 18316 16905 0 -1 4194304 1289 0 0 0 307 2 0 0 25 0 1 0 104203803 6922240 1125 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/18316/statm: 1690 1125 94 219 0 1467 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 6760

[startup+6.30166 s]
/proc/loadavg: 0.98 0.98 0.99 2/66 18317
/proc/meminfo: memFree=1165464/2055920 swapFree=4179792/4192956
[pid=18316] ppid=18314 vsize=11396 CPUtime=6.28
/proc/18316/stat : 18316 (PBS4) R 18314 18316 16905 0 -1 4194304 1907 0 0 0 626 2 0 0 25 0 1 0 104203803 11669504 1743 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/18316/statm: 2849 1743 94 219 0 2626 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 11396

[startup+12.7013 s]
/proc/loadavg: 0.99 0.98 0.99 2/66 18317
/proc/meminfo: memFree=1163040/2055920 swapFree=4179792/4192956
[pid=18316] ppid=18314 vsize=13332 CPUtime=12.68
/proc/18316/stat : 18316 (PBS4) R 18314 18316 16905 0 -1 4194304 2602 0 0 0 1264 4 0 0 25 0 1 0 104203803 13651968 2245 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 134559379 0 0 4096 16384 0 0 0 17 1 0 0
/proc/18316/statm: 3333 2245 94 219 0 3110 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 13332

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

[startup+15.9016 s]
/proc/loadavg: 0.99 0.98 0.99 2/66 18317
/proc/meminfo: memFree=1162272/2055920 swapFree=4179792/4192956
[pid=18316] ppid=18314 vsize=13652 CPUtime=15.88
/proc/18316/stat : 18316 (PBS4) R 18314 18316 16905 0 -1 4194304 2765 0 0 0 1583 5 0 0 25 0 1 0 104203803 13979648 2408 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/18316/statm: 3413 2408 94 219 0 3190 0
Current children cumulated CPU time (s) 15.88
Current children cumulated vsize (KiB) 13652

[startup+17.5018 s]
/proc/loadavg: 0.99 0.98 0.99 2/66 18317
/proc/meminfo: memFree=1161824/2055920 swapFree=4179792/4192956
[pid=18316] ppid=18314 vsize=15488 CPUtime=17.49
/proc/18316/stat : 18316 (PBS4) R 18314 18316 16905 0 -1 4194304 3221 0 0 0 1743 6 0 0 25 0 1 0 104203803 15859712 2479 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/18316/statm: 3872 2479 94 219 0 3649 0
Current children cumulated CPU time (s) 17.49
Current children cumulated vsize (KiB) 15488

[startup+19.103 s]
/proc/loadavg: 0.99 0.98 0.99 2/66 18317
/proc/meminfo: memFree=1161760/2055920 swapFree=4179792/4192956
[pid=18316] ppid=18314 vsize=15648 CPUtime=19.08
/proc/18316/stat : 18316 (PBS4) R 18314 18316 16905 0 -1 4194304 3299 0 0 0 1902 6 0 0 25 0 1 0 104203803 16023552 2557 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 134549268 0 0 4096 16384 0 0 0 17 1 0 0
/proc/18316/statm: 3912 2557 94 219 0 3689 0
Current children cumulated CPU time (s) 19.08
Current children cumulated vsize (KiB) 15648

[startup+19.901 s]
/proc/loadavg: 0.99 0.98 0.99 2/66 18317
/proc/meminfo: memFree=1161504/2055920 swapFree=4179792/4192956
[pid=18316] ppid=18314 vsize=15852 CPUtime=19.89
/proc/18316/stat : 18316 (PBS4) R 18314 18316 16905 0 -1 4194304 3345 0 0 0 1982 7 0 0 25 0 1 0 104203803 16232448 2603 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/18316/statm: 3963 2603 94 219 0 3740 0
Current children cumulated CPU time (s) 19.89
Current children cumulated vsize (KiB) 15852

[startup+20.1011 s]
/proc/loadavg: 0.99 0.98 0.99 2/66 18317
/proc/meminfo: memFree=1161504/2055920 swapFree=4179792/4192956
[pid=18316] ppid=18314 vsize=15852 CPUtime=20.09
/proc/18316/stat : 18316 (PBS4) R 18314 18316 16905 0 -1 4194304 3350 0 0 0 2002 7 0 0 25 0 1 0 104203803 16232448 2608 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 134547154 0 0 4096 16384 0 0 0 17 1 0 0
/proc/18316/statm: 3963 2608 94 219 0 3740 0
Current children cumulated CPU time (s) 20.09
Current children cumulated vsize (KiB) 15852

[startup+20.2011 s]
/proc/loadavg: 0.99 0.98 0.99 2/66 18317
/proc/meminfo: memFree=1161504/2055920 swapFree=4179792/4192956
[pid=18316] ppid=18314 vsize=15852 CPUtime=20.19
/proc/18316/stat : 18316 (PBS4) R 18314 18316 16905 0 -1 4194304 3351 0 0 0 2012 7 0 0 25 0 1 0 104203803 16232448 2609 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/18316/statm: 3963 2609 94 219 0 3740 0
Current children cumulated CPU time (s) 20.19
Current children cumulated vsize (KiB) 15852

Child status: 0
Real time (s): 20.2414
CPU time (s): 20.2339
CPU user time (s): 20.1599
CPU system time (s): 0.073988
CPU usage (%): 99.963
Max. virtual memory (cumulated for all children) (KiB): 15852

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 20.1599
system time used= 0.073988
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3367
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= 10

runsolver used 0.020996 second user time and 0.045993 second system time

The end

Launcher Data (download as text)

Begin job on node27 on Wed Apr 18 16:51:19 UTC 2007

IDJOB= 358405
IDBENCH= 1212
IDSOLVER= 157
FILE ID= node27/358405-1176915079

PBS_JOBID= 4595237

Free space on /tmp= 66377 MiB

SOLVER NAME= PBS4 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1111222539.opb
COMMAND LINE= /tmp/evaluation/358405-1176915079/PBS4 /tmp/evaluation/358405-1176915079/instance-358405-1176915079.opb            
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node27/convwatcher-358405-1176915079 -o ROOT/results/node27/conversion-358405-1176915079 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/358405-1176915079/instance-358405-1176915079.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node27/watcher-358405-1176915079 -o ROOT/results/node27/solver-358405-1176915079 -C 1800 -W 3600 -M 1800 --output-limit 1,15  /tmp/evaluation/358405-1176915079/PBS4 /tmp/evaluation/358405-1176915079/instance-358405-1176915079.opb            

META MD5SUM SOLVER= b6c24e28fef9e1efa7891be58ea9e46f
MD5SUM BENCH=  85b1a2d6763bafe7f0a209fbd0ea6a94

RANDOM SEED= 88715107

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node27.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		: 3000.213
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	: 5931.00
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		: 3000.213
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:       1172216 kB
Buffers:         30644 kB
Cached:         795768 kB
SwapCached:       7472 kB
Active:         140992 kB
Inactive:       699280 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1172216 kB
SwapTotal:     4192956 kB
SwapFree:      4179792 kB
Dirty:            1140 kB
Writeback:           0 kB
Mapped:          16120 kB
Slab:            29516 kB
Committed_AS:  1633992 kB
PageTables:       1412 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= 66377 MiB

End job on node27 on Wed Apr 18 16:51:39 UTC 2007