Trace number 459377

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 24.8262 24.8346

General information on the benchmark

Namenormalized-PB07/PURE-SAT/SAT07/crafted/Medium/contest05/sabharwal/
counting-clqcolor-unsat-set-b-clqcolor-08-06-07.sat05-1257.reshuffled-07.opb
MD5SUM48865627a3bd6ae8602c377e07e4c30a
Bench CategoryPURE-SAT (instances containing only clauses)
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 benchmark5.9351
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables132
Total number of constraints1527
Number of constraints which are clauses1527
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 constraint2
Maximum length of a constraint8
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 6
Number of bits of the biggest number in a constraint 3
Biggest sum of numbers in a constraint 14
Number of bits of the biggest sum of numbers4
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/459377-1178653566/instance-459377-1178653566.opb ......
24.68/24.74	c done parsing opb.
24.68/24.74	s UNSATISFIABLE
24.68/24.74	c Total Run Time					24.7232

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/459377-1178653566/instance-459377-1178653566.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/node18/watcher-459377-1178653566 -o ROOT/results/node18/solver-459377-1178653566 -C 1800 -W 3600 -M 1800 --output-limit 1,15 PBS4_SAT07v2 /tmp/evaluation/459377-1178653566/instance-459377-1178653566.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 3/77 20471
/proc/meminfo: memFree=1852528/2055920 swapFree=4147172/4192956
[pid=20471] ppid=20469 vsize=1324 CPUtime=0
/proc/20471/stat : 20471 (PBS4_SAT07v2) R 20469 20471 20045 0 -1 4194304 133 0 0 0 0 0 0 0 18 0 1 0 313274044 1355776 115 18446744073709551615 134512640 135410602 4294956688 18446744073709551615 134516033 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20471/statm: 331 115 86 219 0 108 0

[startup+0.0500209 s]
/proc/loadavg: 0.91 0.97 0.99 3/77 20471
/proc/meminfo: memFree=1852528/2055920 swapFree=4147172/4192956
[pid=20471] ppid=20469 vsize=1592 CPUtime=0.04
/proc/20471/stat : 20471 (PBS4_SAT07v2) R 20469 20471 20045 0 -1 4194304 224 0 0 0 4 0 0 0 18 0 1 0 313274044 1630208 206 18446744073709551615 134512640 135410602 4294956688 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20471/statm: 398 206 90 219 0 175 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 1592

[startup+0.101001 s]
/proc/loadavg: 0.91 0.97 0.99 3/77 20471
/proc/meminfo: memFree=1852528/2055920 swapFree=4147172/4192956
[pid=20471] ppid=20469 vsize=1848 CPUtime=0.09
/proc/20471/stat : 20471 (PBS4_SAT07v2) R 20469 20471 20045 0 -1 4194304 266 0 0 0 9 0 0 0 18 0 1 0 313274044 1892352 248 18446744073709551615 134512640 135410602 4294956688 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20471/statm: 462 248 90 219 0 239 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1848

[startup+0.302022 s]
/proc/loadavg: 0.91 0.97 0.99 3/77 20471
/proc/meminfo: memFree=1852528/2055920 swapFree=4147172/4192956
[pid=20471] ppid=20469 vsize=2556 CPUtime=0.29
/proc/20471/stat : 20471 (PBS4_SAT07v2) R 20469 20471 20045 0 -1 4194304 447 0 0 0 29 0 0 0 19 0 1 0 313274044 2617344 429 18446744073709551615 134512640 135410602 4294956688 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20471/statm: 639 429 90 219 0 416 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2556

[startup+0.70106 s]
/proc/loadavg: 0.91 0.97 0.99 3/77 20471
/proc/meminfo: memFree=1852528/2055920 swapFree=4147172/4192956
[pid=20471] ppid=20469 vsize=4048 CPUtime=0.69
/proc/20471/stat : 20471 (PBS4_SAT07v2) R 20469 20471 20045 0 -1 4194304 859 0 0 0 68 1 0 0 22 0 1 0 313274044 4145152 792 18446744073709551615 134512640 135410602 4294956688 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20471/statm: 1012 792 90 219 0 789 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4048

[startup+1.50114 s]
/proc/loadavg: 0.91 0.97 0.99 2/78 20472
/proc/meminfo: memFree=1849192/2055920 swapFree=4147172/4192956
[pid=20471] ppid=20469 vsize=7028 CPUtime=1.49
/proc/20471/stat : 20471 (PBS4_SAT07v2) R 20469 20471 20045 0 -1 4194304 1276 0 0 0 147 2 0 0 25 0 1 0 313274044 7196672 1112 18446744073709551615 134512640 135410602 4294956688 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20471/statm: 1757 1112 90 219 0 1534 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 7028

[startup+3.10129 s]
/proc/loadavg: 0.92 0.97 0.99 2/78 20472
/proc/meminfo: memFree=1847528/2055920 swapFree=4147172/4192956
[pid=20471] ppid=20469 vsize=7748 CPUtime=3.09
/proc/20471/stat : 20471 (PBS4_SAT07v2) R 20469 20471 20045 0 -1 4194304 1724 0 0 0 306 3 0 0 25 0 1 0 313274044 7933952 1560 18446744073709551615 134512640 135410602 4294956688 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20471/statm: 1937 1560 90 219 0 1714 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 7748

[startup+6.3016 s]
/proc/loadavg: 0.92 0.97 0.99 2/78 20472
/proc/meminfo: memFree=1844136/2055920 swapFree=4147172/4192956
[pid=20471] ppid=20469 vsize=13556 CPUtime=6.28
/proc/20471/stat : 20471 (PBS4_SAT07v2) R 20469 20471 20045 0 -1 4194304 2695 0 0 0 623 5 0 0 25 0 1 0 313274044 13881344 2338 18446744073709551615 134512640 135410602 4294956688 18446744073709551615 134588758 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20471/statm: 3389 2338 90 219 0 3166 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 13556

[startup+12.7012 s]
/proc/loadavg: 0.93 0.97 0.99 2/78 20472
/proc/meminfo: memFree=1840168/2055920 swapFree=4147172/4192956
[pid=20471] ppid=20469 vsize=15072 CPUtime=12.69
/proc/20471/stat : 20471 (PBS4_SAT07v2) R 20469 20471 20045 0 -1 4194304 3622 0 0 0 1261 8 0 0 25 0 1 0 313274044 15433728 3265 18446744073709551615 134512640 135410602 4294956688 18446744073709551615 134544667 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20471/statm: 3768 3265 90 219 0 3545 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 15072

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

[startup+19.1018 s]
/proc/loadavg: 0.94 0.97 0.99 2/78 20472
/proc/meminfo: memFree=1835432/2055920 swapFree=4147172/4192956
[pid=20471] ppid=20469 vsize=25616 CPUtime=19.09
/proc/20471/stat : 20471 (PBS4_SAT07v2) R 20469 20471 20045 0 -1 4194304 5077 0 0 0 1899 10 0 0 25 0 1 0 313274044 26230784 4335 18446744073709551615 134512640 135410602 4294956688 18446744073709551615 134544667 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20471/statm: 6404 4335 90 219 0 6181 0
Current children cumulated CPU time (s) 19.09
Current children cumulated vsize (KiB) 25616

[startup+22.3011 s]
/proc/loadavg: 0.94 0.97 0.99 2/78 20472
/proc/meminfo: memFree=1833320/2055920 swapFree=4147172/4192956
[pid=20471] ppid=20469 vsize=26152 CPUtime=22.29
/proc/20471/stat : 20471 (PBS4_SAT07v2) R 20469 20471 20045 0 -1 4194304 5652 0 0 0 2218 11 0 0 25 0 1 0 313274044 26779648 4910 18446744073709551615 134512640 135410602 4294956688 18446744073709551615 134544667 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20471/statm: 6538 4910 90 219 0 6315 0
Current children cumulated CPU time (s) 22.29
Current children cumulated vsize (KiB) 26152

[startup+23.9013 s]
/proc/loadavg: 0.94 0.97 0.99 2/78 20472
/proc/meminfo: memFree=1832168/2055920 swapFree=4147172/4192956
[pid=20471] ppid=20469 vsize=26952 CPUtime=23.88
/proc/20471/stat : 20471 (PBS4_SAT07v2) R 20469 20471 20045 0 -1 4194304 6054 0 0 0 2377 11 0 0 25 0 1 0 313274044 27598848 5312 18446744073709551615 134512640 135410602 4294956688 18446744073709551615 134544852 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20471/statm: 6738 5312 90 219 0 6515 0
Current children cumulated CPU time (s) 23.88
Current children cumulated vsize (KiB) 26952

[startup+24.3013 s]
/proc/loadavg: 0.94 0.97 0.99 2/78 20472
/proc/meminfo: memFree=1831144/2055920 swapFree=4147172/4192956
[pid=20471] ppid=20469 vsize=27112 CPUtime=24.28
/proc/20471/stat : 20471 (PBS4_SAT07v2) R 20469 20471 20045 0 -1 4194304 6155 0 0 0 2417 11 0 0 25 0 1 0 313274044 27762688 5413 18446744073709551615 134512640 135410602 4294956688 18446744073709551615 134544680 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20471/statm: 6778 5413 90 219 0 6555 0
Current children cumulated CPU time (s) 24.28
Current children cumulated vsize (KiB) 27112

[startup+24.7024 s]
/proc/loadavg: 0.94 0.97 0.99 2/78 20472
/proc/meminfo: memFree=1831144/2055920 swapFree=4147172/4192956
[pid=20471] ppid=20469 vsize=27112 CPUtime=24.68
/proc/20471/stat : 20471 (PBS4_SAT07v2) R 20469 20471 20045 0 -1 4194304 6194 0 0 0 2457 11 0 0 25 0 1 0 313274044 27762688 5452 18446744073709551615 134512640 135410602 4294956688 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20471/statm: 6778 5452 90 219 0 6555 0
Current children cumulated CPU time (s) 24.68
Current children cumulated vsize (KiB) 27112

[startup+24.8024 s]
/proc/loadavg: 0.94 0.97 0.99 2/78 20472
/proc/meminfo: memFree=1831144/2055920 swapFree=4147172/4192956
[pid=20471] ppid=20469 vsize=27112 CPUtime=24.78
/proc/20471/stat : 20471 (PBS4_SAT07v2) R 20469 20471 20045 0 -1 4195840 6619 0 0 0 2461 17 0 0 25 0 1 0 313274044 27762688 5476 18446744073709551615 134512640 135410602 4294956688 18446744073709551615 134514511 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20471/statm: 6778 5476 107 219 0 6555 0
Current children cumulated CPU time (s) 24.78
Current children cumulated vsize (KiB) 27112

Child ended because it received signal 11 (SIGSEGV)
Real time (s): 24.8346
CPU time (s): 24.8262
CPU user time (s): 24.6173
CPU system time (s): 0.208968
CPU usage (%): 99.9665
Max. virtual memory (cumulated for all children) (KiB): 27112

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 24.6173
system time used= 0.208968
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6961
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= 47

runsolver used 0.015997 second user time and 0.066989 second system time

The end

Launcher Data (download as text)

Begin job on node18 on Tue May  8 19:46:07 UTC 2007

IDJOB= 459377
IDBENCH= 47838
IDSOLVER= 200
FILE ID= node18/459377-1178653566

PBS_JOBID= 5217836

Free space on /tmp= 66562 MiB

SOLVER NAME= PBS4_v2 2007-03-23
BENCH NAME= HOME/pub/bench/PB07/normalized-PB07/PURE-SAT/SAT07/crafted/Medium/contest05/sabharwal/counting-clqcolor-unsat-set-b-clqcolor-08-06-07.sat05-1257.reshuffled-07.opb
COMMAND LINE= PBS4_SAT07v2 /tmp/evaluation/459377-1178653566/instance-459377-1178653566.opb
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node18/convwatcher-459377-1178653566 -o ROOT/results/node18/conversion-459377-1178653566 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/459377-1178653566/instance-459377-1178653566.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node18/watcher-459377-1178653566 -o ROOT/results/node18/solver-459377-1178653566 -C 1800 -W 3600 -M 1800 --output-limit 1,15  PBS4_SAT07v2 /tmp/evaluation/459377-1178653566/instance-459377-1178653566.opb

META MD5SUM SOLVER= 18cd8c68a4d3bfb01f29079966475a33
MD5SUM BENCH=  48865627a3bd6ae8602c377e07e4c30a

RANDOM SEED= 677164051

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node18.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:       1853064 kB
Buffers:         34304 kB
Cached:          81712 kB
SwapCached:      14340 kB
Active:          55644 kB
Inactive:        83980 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1853064 kB
SwapTotal:     4192956 kB
SwapFree:      4147172 kB
Dirty:            2424 kB
Writeback:           0 kB
Mapped:          30560 kB
Slab:            48796 kB
Committed_AS:  8684356 kB
PageTables:       1780 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= 66541 MiB

End job on node18 on Tue May  8 19:46:32 UTC 2007