Trace number 432491

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
bsolo 3.0.17UNSAT 1.9697 1.97282

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/web/
uclid_pb_benchmarks/normalized-dlx1c.ucl.opb
MD5SUMd30cbdfbaf2c404a9c4e9217e33c734d
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 benchmark0.393939
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables6392
Total number of constraints18058
Number of constraints which are clauses17278
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints780
Minimum length of a constraint1
Maximum length of a constraint11
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 33
Number of bits of the biggest number in a constraint 6
Biggest sum of numbers in a constraint 126
Number of bits of the biggest sum of numbers7
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 bsolo beta version 3.0.17 - 27/04/2007 : 1600 GMT
0.00/0.00	c Developed by Vasco Manquinho IST/UTL - INESC-ID
0.00/0.00	c type "bsolo -h" for help
0.00/0.00	c Time Limit set via environment variable PBTIMEOUT to 1800
0.00/0.00	c Memory Limit set to 1800 MB
0.00/0.00	c Instance file /tmp/evaluation/432491-1177944013/instance-432491-1177944013.opb
0.00/0.00	c File size is 551974 bytes.
0.08/0.10	c Highest Coefficient sum: 126
0.08/0.10	c Parsing was ok!!
0.08/0.10	c Total parsing time: 0.098 s
0.08/0.11	c Var: 6392 Constr: 18058 17278/0/780 Lit: 48384 Watch. Lit: 36951
0.08/0.11	c Obj. Vars: 0 (0 % of total variables)
1.69/1.72	c Pre-processing Time: 1.717 s
1.69/1.72	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
1.69/1.72	c        0   4772    13610    38169    2    28398   20796      0      0 1.72
1.69/1.72	c Switching off LPR mode.
1.88/1.97	c      100   4772    13710    40094    2    30135   22876    100     56 1.76
1.88/1.97	c      252   4772    13862    43348    3    30807   25164    252    137 1.84
1.88/1.97	c      479   4772    14089    54025    3    31318   27681    479    247 1.94
1.88/1.97	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
1.88/1.97	c    3      532    277     5275    14142    54834    532    270 1.97
1.88/1.97	s UNSATISFIABLE
1.88/1.97	c Total time: 1.965 s

Verifier Data (download as text)

ERROR: no interpretation found !

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node68/watcher-432491-1177944013 -o ROOT/results/node68/solver-432491-1177944013 -C 1800 -W 3600 -M 1800 --output-limit 1,15 bsolo3.0.17 -m1800 /tmp/evaluation/432491-1177944013/instance-432491-1177944013.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: 0.84 0.93 0.88 3/64 27441
/proc/meminfo: memFree=1852584/2055920 swapFree=4183928/4192956
[pid=27441] ppid=27439 vsize=20088 CPUtime=0
/proc/27441/stat : 27441 (bsolo3.0.17) R 27439 27441 26650 0 -1 4194304 346 0 0 0 0 0 0 0 18 0 1 0 270390795 20570112 316 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 134536096 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27441/statm: 5022 325 278 324 0 3957 0

[startup+0.090838 s]
/proc/loadavg: 0.84 0.93 0.88 3/64 27441
/proc/meminfo: memFree=1852584/2055920 swapFree=4183928/4192956
[pid=27441] ppid=27439 vsize=6672 CPUtime=0.07
/proc/27441/stat : 27441 (bsolo3.0.17) R 27439 27441 26650 0 -1 4194304 1020 0 0 0 7 0 0 0 18 0 1 0 270390795 6832128 990 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 10837752 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27441/statm: 1668 991 401 324 0 603 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 6672

[startup+0.101837 s]
/proc/loadavg: 0.84 0.93 0.88 3/64 27441
/proc/meminfo: memFree=1852584/2055920 swapFree=4183928/4192956
[pid=27441] ppid=27439 vsize=6808 CPUtime=0.08
/proc/27441/stat : 27441 (bsolo3.0.17) R 27439 27441 26650 0 -1 4194304 1070 0 0 0 8 0 0 0 18 0 1 0 270390795 6971392 1040 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 10950267 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27441/statm: 1702 1040 415 324 0 637 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 6808

[startup+0.301856 s]
/proc/loadavg: 0.84 0.93 0.88 3/64 27441
/proc/meminfo: memFree=1852584/2055920 swapFree=4183928/4192956
[pid=27441] ppid=27439 vsize=7748 CPUtime=0.29
/proc/27441/stat : 27441 (bsolo3.0.17) R 27439 27441 26650 0 -1 4194304 1470 0 0 0 28 1 0 0 19 0 1 0 270390795 7933952 1305 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27441/statm: 1937 1305 303 324 0 1007 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 7748

[startup+0.701892 s]
/proc/loadavg: 0.84 0.93 0.88 3/64 27441
/proc/meminfo: memFree=1852584/2055920 swapFree=4183928/4192956
[pid=27441] ppid=27439 vsize=7880 CPUtime=0.69
/proc/27441/stat : 27441 (bsolo3.0.17) R 27439 27441 26650 0 -1 4194304 1477 0 0 0 68 1 0 0 22 0 1 0 270390795 8069120 1312 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 134550804 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27441/statm: 1970 1312 303 324 0 1040 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 7880

[startup+1.50196 s]
/proc/loadavg: 0.85 0.93 0.88 2/65 27442
/proc/meminfo: memFree=1848416/2055920 swapFree=4183928/4192956
[pid=27441] ppid=27439 vsize=7880 CPUtime=1.49
/proc/27441/stat : 27441 (bsolo3.0.17) R 27439 27441 26650 0 -1 4194304 1490 0 0 0 148 1 0 0 25 0 1 0 270390795 8069120 1325 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 134550782 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27441/statm: 1970 1325 303 324 0 1040 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 7880

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

[startup+1.902 s]
/proc/loadavg: 0.85 0.93 0.88 2/65 27442
/proc/meminfo: memFree=1848416/2055920 swapFree=4183928/4192956
[pid=27441] ppid=27439 vsize=7964 CPUtime=1.88
/proc/27441/stat : 27441 (bsolo3.0.17) R 27439 27441 26650 0 -1 4194304 1551 0 0 0 186 2 0 0 25 0 1 0 270390795 8155136 1365 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 134571853 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27441/statm: 1991 1365 309 324 0 1061 0
Current children cumulated CPU time (s) 1.88
Current children cumulated vsize (KiB) 7964

Child status: 0
Real time (s): 1.97282
CPU time (s): 1.9697
CPU user time (s): 1.9387
CPU system time (s): 0.030995
CPU usage (%): 99.842
Max. virtual memory (cumulated for all children) (KiB): 7964

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.93871
system time used= 0.030995
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1556
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= 12
involuntary context switches= 24

runsolver used 0.004999 second user time and 0.005999 second system time

The end

Launcher Data (download as text)

Begin job on node68 on Mon Apr 30 14:40:13 UTC 2007

IDJOB= 432491
IDBENCH= 1478
IDSOLVER= 199
FILE ID= node68/432491-1177944013

PBS_JOBID= 4727531

Free space on /tmp= 66558 MiB

SOLVER NAME= bsolo 3.0.17
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/SATUNSAT-SMALLINT/web/uclid_pb_benchmarks/normalized-dlx1c.ucl.opb
COMMAND LINE= bsolo3.0.17 -m1800 /tmp/evaluation/432491-1177944013/instance-432491-1177944013.opb            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node68/watcher-432491-1177944013 -o ROOT/results/node68/solver-432491-1177944013 -C 1800 -W 3600 -M 1800 --output-limit 1,15  bsolo3.0.17 -m1800 /tmp/evaluation/432491-1177944013/instance-432491-1177944013.opb            

META MD5SUM SOLVER= c9b15312c639dd71a11a1e3ca1b27020
MD5SUM BENCH=  d30cbdfbaf2c404a9c4e9217e33c734d

RANDOM SEED= 860648842

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node68.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		: 3000.216
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		: 3000.216
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:       1853056 kB
Buffers:         18376 kB
Cached:         106348 kB
SwapCached:       3048 kB
Active:          28768 kB
Inactive:       105636 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1853056 kB
SwapTotal:     4192956 kB
SwapFree:      4183928 kB
Dirty:            7284 kB
Writeback:           0 kB
Mapped:          15656 kB
Slab:            54572 kB
Committed_AS:  3044376 kB
PageTables:       1380 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= 66558 MiB

End job on node68 on Mon Apr 30 14:40:15 UTC 2007