Trace number 458829

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 NameAnswerObjective functionCPU timeWall clock time
PBS4_v2 2007-03-23UNSAT 2.87156 2.87413

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/submitted-PB05/manquinho/
primes-dimacs-cnf/normalized-ssa6288-047.opb
MD5SUM74304bad8e53580b77abf30e0c0ba7f6
Bench CategoryOPT-SMALLINT (optimisation, small integers)
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 benchmark0.306952
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables20820
Total number of constraints44648
Number of constraints which are clauses44648
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 constraint1
Maximum length of a constraint6
Number of terms in the objective function 20820
Biggest coefficient in the objective function 1
Number of bits for the biggest coefficient in the objective function 1
Sum of the numbers in the objective function 20820
Number of bits of the sum of numbers in the objective function 15
Biggest number in a constraint 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 20820
Number of bits of the biggest sum of numbers15
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/458829-1178644343/instance-458829-1178644343.opb ......
2.79/2.86	c done parsing opb.
2.79/2.86	s UNSATISFIABLE
2.79/2.86	c Total Run Time					0.018997

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/458829-1178644343/instance-458829-1178644343.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/node17/watcher-458829-1178644343 -o ROOT/results/node17/solver-458829-1178644343 -C 1800 -W 3600 -M 1800 --output-limit 1,15 PBS4_SAT07v2 /tmp/evaluation/458829-1178644343/instance-458829-1178644343.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: 0.92 0.97 0.98 3/77 23896
/proc/meminfo: memFree=1714432/2055920 swapFree=4140136/4192956
[pid=23896] ppid=23894 vsize=3276 CPUtime=0
/proc/23896/stat : 23896 (PBS4_SAT07v2) R 23894 23896 23425 0 -1 4194304 491 0 0 0 0 0 0 0 18 0 1 0 312351823 3354624 473 18446744073709551615 134512640 135410602 4294956688 18446744073709551615 134570671 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23896/statm: 819 477 79 219 0 596 0

[startup+0.0569821 s]
/proc/loadavg: 0.92 0.97 0.98 3/77 23896
/proc/meminfo: memFree=1714432/2055920 swapFree=4140136/4192956
[pid=23896] ppid=23894 vsize=4900 CPUtime=0.05
/proc/23896/stat : 23896 (PBS4_SAT07v2) R 23894 23896 23425 0 -1 4194304 983 0 0 0 5 0 0 0 18 0 1 0 312351823 5017600 965 18446744073709551615 134512640 135410602 4294956688 18446744073709551615 134784927 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23896/statm: 1225 965 84 219 0 1002 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 4900

[startup+0.101952 s]
/proc/loadavg: 0.92 0.97 0.98 3/77 23896
/proc/meminfo: memFree=1714432/2055920 swapFree=4140136/4192956
[pid=23896] ppid=23894 vsize=5456 CPUtime=0.09
/proc/23896/stat : 23896 (PBS4_SAT07v2) R 23894 23896 23425 0 -1 4194304 1147 0 0 0 9 0 0 0 18 0 1 0 312351823 5586944 1096 18446744073709551615 134512640 135410602 4294956688 18446744073709551615 134784927 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23896/statm: 1364 1096 84 219 0 1141 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5456

[startup+0.301973 s]
/proc/loadavg: 0.92 0.97 0.98 3/77 23896
/proc/meminfo: memFree=1714432/2055920 swapFree=4140136/4192956
[pid=23896] ppid=23894 vsize=5456 CPUtime=0.29
/proc/23896/stat : 23896 (PBS4_SAT07v2) R 23894 23896 23425 0 -1 4194304 1159 0 0 0 29 0 0 0 19 0 1 0 312351823 5586944 1108 18446744073709551615 134512640 135410602 4294956688 18446744073709551615 134586450 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23896/statm: 1364 1108 86 219 0 1141 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 5456

[startup+0.702015 s]
/proc/loadavg: 0.92 0.97 0.98 3/77 23896
/proc/meminfo: memFree=1714432/2055920 swapFree=4140136/4192956
[pid=23896] ppid=23894 vsize=5456 CPUtime=0.69
/proc/23896/stat : 23896 (PBS4_SAT07v2) R 23894 23896 23425 0 -1 4194304 1159 0 0 0 69 0 0 0 23 0 1 0 312351823 5586944 1108 18446744073709551615 134512640 135410602 4294956688 18446744073709551615 134586381 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23896/statm: 1364 1108 86 219 0 1141 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 5456

[startup+1.5011 s]
/proc/loadavg: 0.92 0.97 0.98 2/78 23897
/proc/meminfo: memFree=1710264/2055920 swapFree=4140136/4192956
[pid=23896] ppid=23894 vsize=5784 CPUtime=1.49
/proc/23896/stat : 23896 (PBS4_SAT07v2) R 23894 23896 23425 0 -1 4194304 1241 0 0 0 149 0 0 0 25 0 1 0 312351823 5922816 1190 18446744073709551615 134512640 135410602 4294956688 18446744073709551615 134587091 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23896/statm: 1446 1190 86 219 0 1223 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 5784

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

[startup+2.30118 s]
/proc/loadavg: 0.92 0.97 0.98 2/78 23897
/proc/meminfo: memFree=1709816/2055920 swapFree=4140136/4192956
[pid=23896] ppid=23894 vsize=5784 CPUtime=2.29
/proc/23896/stat : 23896 (PBS4_SAT07v2) R 23894 23896 23425 0 -1 4194304 1241 0 0 0 229 0 0 0 25 0 1 0 312351823 5922816 1190 18446744073709551615 134512640 135410602 4294956688 18446744073709551615 134586939 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23896/statm: 1446 1190 86 219 0 1223 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 5784

[startup+2.70122 s]
/proc/loadavg: 0.92 0.97 0.98 2/78 23897
/proc/meminfo: memFree=1709816/2055920 swapFree=4140136/4192956
[pid=23896] ppid=23894 vsize=7968 CPUtime=2.69
/proc/23896/stat : 23896 (PBS4_SAT07v2) R 23894 23896 23425 0 -1 4194304 1989 0 0 0 268 1 0 0 25 0 1 0 312351823 8159232 1700 18446744073709551615 134512640 135410602 4294956688 18446744073709551615 134588758 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23896/statm: 1992 1700 86 219 0 1769 0
Current children cumulated CPU time (s) 2.69
Current children cumulated vsize (KiB) 7968

[startup+2.80123 s]
/proc/loadavg: 0.92 0.97 0.98 2/78 23897
/proc/meminfo: memFree=1709816/2055920 swapFree=4140136/4192956
[pid=23896] ppid=23894 vsize=9760 CPUtime=2.79
/proc/23896/stat : 23896 (PBS4_SAT07v2) R 23894 23896 23425 0 -1 4194304 2319 0 0 0 278 1 0 0 25 0 1 0 312351823 9994240 1837 18446744073709551615 134512640 135410602 4294956688 18446744073709551615 134530021 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23896/statm: 2440 1837 86 219 0 2217 0
Current children cumulated CPU time (s) 2.79
Current children cumulated vsize (KiB) 9760

Child status: 0
Real time (s): 2.87413
CPU time (s): 2.87156
CPU user time (s): 2.85556
CPU system time (s): 0.015997
CPU usage (%): 99.9107
Max. virtual memory (cumulated for all children) (KiB): 9760

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.85556
system time used= 0.015997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2505
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= 57

runsolver used 0.003999 second user time and 0.012998 second system time

The end

Launcher Data (download as text)

Begin job on node17 on Tue May  8 17:12:23 UTC 2007

IDJOB= 458829
IDBENCH= 2068
IDSOLVER= 200
FILE ID= node17/458829-1178644343

PBS_JOBID= 5217830

Free space on /tmp= 66561 MiB

SOLVER NAME= PBS4_v2 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/OPT-SMALLINT/submitted-PB05/manquinho/primes-dimacs-cnf/normalized-ssa6288-047.opb
COMMAND LINE= PBS4_SAT07v2 /tmp/evaluation/458829-1178644343/instance-458829-1178644343.opb
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node17/convwatcher-458829-1178644343 -o ROOT/results/node17/conversion-458829-1178644343 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/458829-1178644343/instance-458829-1178644343.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node17/watcher-458829-1178644343 -o ROOT/results/node17/solver-458829-1178644343 -C 1800 -W 3600 -M 1800 --output-limit 1,15  PBS4_SAT07v2 /tmp/evaluation/458829-1178644343/instance-458829-1178644343.opb

META MD5SUM SOLVER= 18cd8c68a4d3bfb01f29079966475a33
MD5SUM BENCH=  74304bad8e53580b77abf30e0c0ba7f6

RANDOM SEED= 865389352

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node17.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		: 3000.240
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		: 3000.240
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:       1714840 kB
Buffers:         37296 kB
Cached:         209584 kB
SwapCached:      15192 kB
Active:         103580 kB
Inactive:       167972 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1714840 kB
SwapTotal:     4192956 kB
SwapFree:      4140136 kB
Dirty:            3844 kB
Writeback:           0 kB
Mapped:          31536 kB
Slab:            55016 kB
Committed_AS: 10074120 kB
PageTables:       1800 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 node17 on Tue May  8 17:12:26 UTC 2007