Trace number 458100

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_v2 2007-03-23UNSAT 21.5667 21.5753

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111226062.opb
MD5SUM866f5ef3323c718f8dc3ec29e930c03b
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 benchmark0.432934
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 1231
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/458100-1178618991/instance-458100-1178618991.opb ......
21.49/21.57	c done parsing opb.
21.49/21.57	s UNSATISFIABLE
21.49/21.57	c Total Run Time					21.5587

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/458100-1178618991/instance-458100-1178618991.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/node10/watcher-458100-1178618991 -o ROOT/results/node10/solver-458100-1178618991 -C 1800 -W 3600 -M 1800 --output-limit 1,15 PBS4_SAT07v2 /tmp/evaluation/458100-1178618991/instance-458100-1178618991.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 0.98 0.99 3/77 23375
/proc/meminfo: memFree=1799544/2055920 swapFree=4145572/4192956
[pid=23375] ppid=23373 vsize=1320 CPUtime=0
/proc/23375/stat : 23375 (PBS4_SAT07v2) R 23373 23375 22363 0 -1 4194304 141 0 0 0 0 0 0 0 18 0 1 0 337936636 1351680 123 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23375/statm: 330 123 90 219 0 107 0

[startup+0.08264 s]
/proc/loadavg: 0.99 0.98 0.99 3/77 23375
/proc/meminfo: memFree=1799544/2055920 swapFree=4145572/4192956
[pid=23375] ppid=23373 vsize=1456 CPUtime=0.07
/proc/23375/stat : 23375 (PBS4_SAT07v2) R 23373 23375 22363 0 -1 4194304 182 0 0 0 7 0 0 0 18 0 1 0 337936636 1490944 164 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23375/statm: 364 164 90 219 0 141 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 1456

[startup+0.102644 s]
/proc/loadavg: 0.99 0.98 0.99 3/77 23375
/proc/meminfo: memFree=1799544/2055920 swapFree=4145572/4192956
[pid=23375] ppid=23373 vsize=1456 CPUtime=0.09
/proc/23375/stat : 23375 (PBS4_SAT07v2) R 23373 23375 22363 0 -1 4194304 191 0 0 0 9 0 0 0 18 0 1 0 337936636 1490944 173 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23375/statm: 364 173 90 219 0 141 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1456

[startup+0.302694 s]
/proc/loadavg: 0.99 0.98 0.99 3/77 23375
/proc/meminfo: memFree=1799544/2055920 swapFree=4145572/4192956
[pid=23375] ppid=23373 vsize=1868 CPUtime=0.29
/proc/23375/stat : 23375 (PBS4_SAT07v2) R 23373 23375 22363 0 -1 4194304 300 0 0 0 29 0 0 0 19 0 1 0 337936636 1912832 282 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 134557367 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23375/statm: 467 282 90 219 0 244 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1868

[startup+0.701774 s]
/proc/loadavg: 0.99 0.98 0.99 3/77 23375
/proc/meminfo: memFree=1799544/2055920 swapFree=4145572/4192956
[pid=23375] ppid=23373 vsize=3600 CPUtime=0.69
/proc/23375/stat : 23375 (PBS4_SAT07v2) R 23373 23375 22363 0 -1 4194304 506 0 0 0 68 1 0 0 23 0 1 0 337936636 3686400 488 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 134557367 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23375/statm: 900 488 90 219 0 677 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3600

[startup+1.50195 s]
/proc/loadavg: 0.99 0.98 0.99 2/78 23376
/proc/meminfo: memFree=1797168/2055920 swapFree=4145572/4192956
[pid=23375] ppid=23373 vsize=5972 CPUtime=1.49
/proc/23375/stat : 23375 (PBS4_SAT07v2) R 23373 23375 22363 0 -1 4194304 899 0 0 0 147 2 0 0 25 0 1 0 337936636 6115328 832 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23375/statm: 1493 832 90 219 0 1270 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 5972

[startup+3.10129 s]
/proc/loadavg: 0.99 0.98 0.99 2/78 23376
/proc/meminfo: memFree=1795440/2055920 swapFree=4145572/4192956
[pid=23375] ppid=23373 vsize=6884 CPUtime=3.09
/proc/23375/stat : 23375 (PBS4_SAT07v2) R 23373 23375 22363 0 -1 4194304 1516 0 0 0 306 3 0 0 25 0 1 0 337936636 7049216 1352 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 134546828 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23375/statm: 1721 1352 90 219 0 1498 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 6884

[startup+6.30199 s]
/proc/loadavg: 0.99 0.98 0.99 2/78 23376
/proc/meminfo: memFree=1792112/2055920 swapFree=4145572/4192956
[pid=23375] ppid=23373 vsize=11516 CPUtime=6.29
/proc/23375/stat : 23375 (PBS4_SAT07v2) R 23373 23375 22363 0 -1 4194304 2163 0 0 0 624 5 0 0 25 0 1 0 337936636 11792384 1999 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23375/statm: 2879 1999 90 219 0 2656 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 11516

[startup+12.7014 s]
/proc/loadavg: 0.99 0.98 0.99 2/78 23376
/proc/meminfo: memFree=1789872/2055920 swapFree=4145572/4192956
[pid=23375] ppid=23373 vsize=13264 CPUtime=12.68
/proc/23375/stat : 23375 (PBS4_SAT07v2) R 23373 23375 22363 0 -1 4194304 2795 0 0 0 1261 7 0 0 25 0 1 0 337936636 13582336 2438 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23375/statm: 3316 2438 90 219 0 3093 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 13264

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

[startup+15.9011 s]
/proc/loadavg: 0.99 0.98 0.99 2/78 23376
/proc/meminfo: memFree=1789168/2055920 swapFree=4145572/4192956
[pid=23375] ppid=23373 vsize=13692 CPUtime=15.88
/proc/23375/stat : 23375 (PBS4_SAT07v2) R 23373 23375 22363 0 -1 4194304 2967 0 0 0 1580 8 0 0 25 0 1 0 337936636 14020608 2610 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 134544702 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23375/statm: 3423 2610 90 219 0 3200 0
Current children cumulated CPU time (s) 15.88
Current children cumulated vsize (KiB) 13692

[startup+19.1018 s]
/proc/loadavg: 0.99 0.98 0.99 2/78 23376
/proc/meminfo: memFree=1788400/2055920 swapFree=4145572/4192956
[pid=23375] ppid=23373 vsize=15568 CPUtime=19.08
/proc/23375/stat : 23375 (PBS4_SAT07v2) R 23373 23375 22363 0 -1 4194304 3501 0 0 0 1899 9 0 0 25 0 1 0 337936636 15941632 2759 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23375/statm: 3892 2759 90 219 0 3669 0
Current children cumulated CPU time (s) 19.08
Current children cumulated vsize (KiB) 15568

[startup+20.7011 s]
/proc/loadavg: 0.99 0.98 0.99 2/78 23376
/proc/meminfo: memFree=1788400/2055920 swapFree=4145572/4192956
[pid=23375] ppid=23373 vsize=16108 CPUtime=20.68
/proc/23375/stat : 23375 (PBS4_SAT07v2) R 23373 23375 22363 0 -1 4194304 3629 0 0 0 2059 9 0 0 25 0 1 0 337936636 16494592 2887 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 134544702 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23375/statm: 4027 2887 90 219 0 3804 0
Current children cumulated CPU time (s) 20.68
Current children cumulated vsize (KiB) 16108

[startup+21.1012 s]
/proc/loadavg: 0.99 0.98 0.99 2/78 23376
/proc/meminfo: memFree=1787952/2055920 swapFree=4145572/4192956
[pid=23375] ppid=23373 vsize=16108 CPUtime=21.08
/proc/23375/stat : 23375 (PBS4_SAT07v2) R 23373 23375 22363 0 -1 4194304 3635 0 0 0 2099 9 0 0 25 0 1 0 337936636 16494592 2893 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 134544750 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23375/statm: 4027 2893 90 219 0 3804 0
Current children cumulated CPU time (s) 21.08
Current children cumulated vsize (KiB) 16108

[startup+21.5013 s]
/proc/loadavg: 0.99 0.98 0.99 2/78 23376
/proc/meminfo: memFree=1787952/2055920 swapFree=4145572/4192956
[pid=23375] ppid=23373 vsize=16108 CPUtime=21.49
/proc/23375/stat : 23375 (PBS4_SAT07v2) R 23373 23375 22363 0 -1 4194304 3641 0 0 0 2139 10 0 0 25 0 1 0 337936636 16494592 2899 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23375/statm: 4027 2899 90 219 0 3804 0
Current children cumulated CPU time (s) 21.49
Current children cumulated vsize (KiB) 16108

Child status: 0
Real time (s): 21.5753
CPU time (s): 21.5667
CPU user time (s): 21.4617
CPU system time (s): 0.104984
CPU usage (%): 99.9604
Max. virtual memory (cumulated for all children) (KiB): 16108

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 21.4617
system time used= 0.104984
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3659
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= 447

runsolver used 0.018997 second user time and 0.052991 second system time

The end

Launcher Data (download as text)

Begin job on node10 on Tue May  8 10:09:51 UTC 2007

IDJOB= 458100
IDBENCH= 1177
IDSOLVER= 200
FILE ID= node10/458100-1178618991

PBS_JOBID= 5217775

Free space on /tmp= 66561 MiB

SOLVER NAME= PBS4_v2 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1111226062.opb
COMMAND LINE= PBS4_SAT07v2 /tmp/evaluation/458100-1178618991/instance-458100-1178618991.opb
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node10/convwatcher-458100-1178618991 -o ROOT/results/node10/conversion-458100-1178618991 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/458100-1178618991/instance-458100-1178618991.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node10/watcher-458100-1178618991 -o ROOT/results/node10/solver-458100-1178618991 -C 1800 -W 3600 -M 1800 --output-limit 1,15  PBS4_SAT07v2 /tmp/evaluation/458100-1178618991/instance-458100-1178618991.opb

META MD5SUM SOLVER= 18cd8c68a4d3bfb01f29079966475a33
MD5SUM BENCH=  866f5ef3323c718f8dc3ec29e930c03b

RANDOM SEED= 15261477

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node10.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		: 3000.259
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		: 3000.259
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:       1799952 kB
Buffers:         34532 kB
Cached:         133092 kB
SwapCached:      15636 kB
Active:         102772 kB
Inactive:        88428 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1799952 kB
SwapTotal:     4192956 kB
SwapFree:      4145572 kB
Dirty:            2444 kB
Writeback:           0 kB
Mapped:          30580 kB
Slab:            50356 kB
Committed_AS:  5193696 kB
PageTables:       1708 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= 66561 MiB

End job on node10 on Tue May  8 10:10:13 UTC 2007