Trace number 458139

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 17.6303 17.6379

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111218955.opb
MD5SUM4fb633c677215fa561629219b731606a
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 benchmark0.112982
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 1202
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/458139-1178619409/instance-458139-1178619409.opb ......
17.59/17.63	c done parsing opb.
17.59/17.63	s UNSATISFIABLE
17.59/17.63	c Total Run Time					17.6223

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/458139-1178619409/instance-458139-1178619409.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-458139-1178619409 -o ROOT/results/node10/solver-458139-1178619409 -C 1800 -W 3600 -M 1800 --output-limit 1,15 PBS4_SAT07v2 /tmp/evaluation/458139-1178619409/instance-458139-1178619409.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: 0.95 0.93 0.96 3/77 24293
/proc/meminfo: memFree=1798536/2055920 swapFree=4145572/4192956
[pid=24293] ppid=24291 vsize=1320 CPUtime=0
/proc/24293/stat : 24293 (PBS4_SAT07v2) R 24291 24293 22363 0 -1 4194304 142 0 0 0 0 0 0 0 18 0 1 0 337978415 1351680 124 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 0 0 0
/proc/24293/statm: 330 124 90 219 0 107 0

[startup+0.0671441 s]
/proc/loadavg: 0.95 0.93 0.96 3/77 24293
/proc/meminfo: memFree=1798536/2055920 swapFree=4145572/4192956
[pid=24293] ppid=24291 vsize=1456 CPUtime=0.06
/proc/24293/stat : 24293 (PBS4_SAT07v2) R 24291 24293 22363 0 -1 4194304 197 0 0 0 6 0 0 0 18 0 1 0 337978415 1490944 179 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 0 0 0
/proc/24293/statm: 364 179 90 219 0 141 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 1456

[startup+0.101152 s]
/proc/loadavg: 0.95 0.93 0.96 3/77 24293
/proc/meminfo: memFree=1798536/2055920 swapFree=4145572/4192956
[pid=24293] ppid=24291 vsize=1712 CPUtime=0.09
/proc/24293/stat : 24293 (PBS4_SAT07v2) R 24291 24293 22363 0 -1 4194304 228 0 0 0 9 0 0 0 18 0 1 0 337978415 1753088 210 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 0 0 0
/proc/24293/statm: 428 210 90 219 0 205 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1712

[startup+0.301195 s]
/proc/loadavg: 0.95 0.93 0.96 3/77 24293
/proc/meminfo: memFree=1798536/2055920 swapFree=4145572/4192956
[pid=24293] ppid=24291 vsize=2392 CPUtime=0.29
/proc/24293/stat : 24293 (PBS4_SAT07v2) R 24291 24293 22363 0 -1 4194304 343 0 0 0 29 0 0 0 19 0 1 0 337978415 2449408 325 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 134557444 0 0 4096 16384 0 0 0 17 0 0 0
/proc/24293/statm: 598 325 90 219 0 375 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2392

[startup+0.701282 s]
/proc/loadavg: 0.95 0.93 0.96 3/77 24293
/proc/meminfo: memFree=1798536/2055920 swapFree=4145572/4192956
[pid=24293] ppid=24291 vsize=3612 CPUtime=0.69
/proc/24293/stat : 24293 (PBS4_SAT07v2) R 24291 24293 22363 0 -1 4194304 561 0 0 0 69 0 0 0 23 0 1 0 337978415 3698688 543 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 0 0 0
/proc/24293/statm: 903 543 90 219 0 680 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3612

[startup+1.50145 s]
/proc/loadavg: 0.95 0.93 0.96 2/78 24294
/proc/meminfo: memFree=1796352/2055920 swapFree=4145572/4192956
[pid=24293] ppid=24291 vsize=5984 CPUtime=1.49
/proc/24293/stat : 24293 (PBS4_SAT07v2) R 24291 24293 22363 0 -1 4194304 892 0 0 0 149 0 0 0 25 0 1 0 337978415 6127616 825 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 0 0 0
/proc/24293/statm: 1496 825 90 219 0 1273 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 5984

[startup+3.1028 s]
/proc/loadavg: 0.95 0.93 0.96 2/78 24294
/proc/meminfo: memFree=1794560/2055920 swapFree=4145572/4192956
[pid=24293] ppid=24291 vsize=6916 CPUtime=3.09
/proc/24293/stat : 24293 (PBS4_SAT07v2) R 24291 24293 22363 0 -1 4194304 1517 0 0 0 308 1 0 0 25 0 1 0 337978415 7081984 1353 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 0 0 0
/proc/24293/statm: 1729 1353 90 219 0 1506 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 6916

[startup+6.30149 s]
/proc/loadavg: 0.95 0.93 0.96 2/78 24294
/proc/meminfo: memFree=1791680/2055920 swapFree=4145572/4192956
[pid=24293] ppid=24291 vsize=12188 CPUtime=6.29
/proc/24293/stat : 24293 (PBS4_SAT07v2) R 24291 24293 22363 0 -1 4194304 2152 0 0 0 626 3 0 0 25 0 1 0 337978415 12480512 1795 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 0 0 0
/proc/24293/statm: 3047 1795 90 219 0 2824 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 12188

[startup+12.7019 s]
/proc/loadavg: 0.95 0.93 0.96 2/78 24294
/proc/meminfo: memFree=1788352/2055920 swapFree=4145572/4192956
[pid=24293] ppid=24291 vsize=13504 CPUtime=12.69
/proc/24293/stat : 24293 (PBS4_SAT07v2) R 24291 24293 22363 0 -1 4194304 2957 0 0 0 1264 5 0 0 25 0 1 0 337978415 13828096 2600 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 134544680 0 0 4096 16384 0 0 0 17 0 0 0
/proc/24293/statm: 3376 2600 90 219 0 3153 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 13504

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

[startup+15.9016 s]
/proc/loadavg: 0.96 0.93 0.96 2/78 24294
/proc/meminfo: memFree=1787584/2055920 swapFree=4145572/4192956
[pid=24293] ppid=24291 vsize=15608 CPUtime=15.89
/proc/24293/stat : 24293 (PBS4_SAT07v2) R 24291 24293 22363 0 -1 4194304 3525 0 0 0 1583 6 0 0 25 0 1 0 337978415 15982592 2783 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 134544680 0 0 4096 16384 0 0 0 17 0 0 0
/proc/24293/statm: 3902 2783 90 219 0 3679 0
Current children cumulated CPU time (s) 15.89
Current children cumulated vsize (KiB) 15608

[startup+16.7017 s]
/proc/loadavg: 0.96 0.93 0.96 2/78 24294
/proc/meminfo: memFree=1787392/2055920 swapFree=4145572/4192956
[pid=24293] ppid=24291 vsize=15608 CPUtime=16.69
/proc/24293/stat : 24293 (PBS4_SAT07v2) R 24291 24293 22363 0 -1 4194304 3546 0 0 0 1663 6 0 0 25 0 1 0 337978415 15982592 2804 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 134544925 0 0 4096 16384 0 0 0 17 0 0 0
/proc/24293/statm: 3902 2804 90 219 0 3679 0
Current children cumulated CPU time (s) 16.69
Current children cumulated vsize (KiB) 15608

[startup+17.1018 s]
/proc/loadavg: 0.96 0.93 0.96 2/78 24294
/proc/meminfo: memFree=1787392/2055920 swapFree=4145572/4192956
[pid=24293] ppid=24291 vsize=15608 CPUtime=17.08
/proc/24293/stat : 24293 (PBS4_SAT07v2) R 24291 24293 22363 0 -1 4194304 3585 0 0 0 1702 6 0 0 25 0 1 0 337978415 15982592 2843 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 134544687 0 0 4096 16384 0 0 0 17 0 0 0
/proc/24293/statm: 3902 2843 90 219 0 3679 0
Current children cumulated CPU time (s) 17.08
Current children cumulated vsize (KiB) 15608

[startup+17.5019 s]
/proc/loadavg: 0.96 0.93 0.96 2/78 24294
/proc/meminfo: memFree=1787072/2055920 swapFree=4145572/4192956
[pid=24293] ppid=24291 vsize=15816 CPUtime=17.49
/proc/24293/stat : 24293 (PBS4_SAT07v2) R 24291 24293 22363 0 -1 4194304 3618 0 0 0 1743 6 0 0 25 0 1 0 337978415 16195584 2876 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 134544896 0 0 4096 16384 0 0 0 17 0 0 0
/proc/24293/statm: 3954 2876 90 219 0 3731 0
Current children cumulated CPU time (s) 17.49
Current children cumulated vsize (KiB) 15816

[startup+17.6059 s]
/proc/loadavg: 0.96 0.93 0.96 2/78 24294
/proc/meminfo: memFree=1787072/2055920 swapFree=4145572/4192956
[pid=24293] ppid=24291 vsize=15816 CPUtime=17.59
/proc/24293/stat : 24293 (PBS4_SAT07v2) R 24291 24293 22363 0 -1 4194304 3620 0 0 0 1753 6 0 0 25 0 1 0 337978415 16195584 2878 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 0 0 0
/proc/24293/statm: 3954 2878 90 219 0 3731 0
Current children cumulated CPU time (s) 17.59
Current children cumulated vsize (KiB) 15816

Child status: 0
Real time (s): 17.6379
CPU time (s): 17.6303
CPU user time (s): 17.5593
CPU system time (s): 0.070989
CPU usage (%): 99.9568
Max. virtual memory (cumulated for all children) (KiB): 15816

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 17.5593
system time used= 0.070989
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3638
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= 117

runsolver used 0.019996 second user time and 0.051992 second system time

The end

Launcher Data (download as text)

Begin job on node10 on Tue May  8 10:16:49 UTC 2007

IDJOB= 458139
IDBENCH= 1216
IDSOLVER= 200
FILE ID= node10/458139-1178619409

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-t2001.13queen13.1111218955.opb
COMMAND LINE= PBS4_SAT07v2 /tmp/evaluation/458139-1178619409/instance-458139-1178619409.opb
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node10/convwatcher-458139-1178619409 -o ROOT/results/node10/conversion-458139-1178619409 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/458139-1178619409/instance-458139-1178619409.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node10/watcher-458139-1178619409 -o ROOT/results/node10/solver-458139-1178619409 -C 1800 -W 3600 -M 1800 --output-limit 1,15  PBS4_SAT07v2 /tmp/evaluation/458139-1178619409/instance-458139-1178619409.opb

META MD5SUM SOLVER= 18cd8c68a4d3bfb01f29079966475a33
MD5SUM BENCH=  4fb633c677215fa561629219b731606a

RANDOM SEED= 712774638

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:       1798944 kB
Buffers:         34884 kB
Cached:         133760 kB
SwapCached:      15636 kB
Active:         103040 kB
Inactive:        89168 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1798944 kB
SwapTotal:     4192956 kB
SwapFree:      4145572 kB
Dirty:            2332 kB
Writeback:           0 kB
Mapped:          30580 kB
Slab:            50348 kB
Committed_AS:  5193984 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 10:17:07 UTC 2007