Trace number 1877530

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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 3.1UNSAT 2.44363 2.44323

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/web/
uclid_pb_benchmarks/normalized-dlx1c.ucl.opb
MD5SUMd30cbdfbaf2c404a9c4e9217e33c734d
Bench CategoryDEC-SMALLINT (no 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 benchmark0.225965
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 

0.00/0.00	c bsolo beta version 3.1 - 13/04/2009 : 1630 GMT
0.00/0.00	c Developed by Vasco Manquinho and José Santos 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 Learning Strategy: Cardinality Constraint Learning
0.00/0.00	c Time Limit set to 1800
0.00/0.00	c Memory Limit set to 1800 MB
0.00/0.00	c Instance file HOME/instance-1877530-1245129760.opb
0.00/0.00	c File size is 551974 bytes.
0.02/0.07	c Highest Coefficient sum: 126
0.02/0.07	c Parsing was ok!!
0.02/0.07	c Total parsing time: 0.077 s
0.02/0.08	c Var: 6392 Constr: 18058 17278/0/780 Lit: 48384 Watch. Lit: 36951
0.02/0.08	c Obj. Vars: 0 (0 % of total variables)
1.99/2.02	c Pre-processing Time: 2.021 s
1.99/2.02	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
1.99/2.02	c        0   4772    13610    38169    2    28414   20796      0      0 2.02
1.99/2.02	c Switching off lower bounding mode.
2.40/2.44	c      100   4772    13802    40898    2    31303   22876    192     47 2.09
2.40/2.44	c      250   4772    14087    46450    3    32122   25164    477    114 2.19
2.40/2.44	c      475   3892    14394    50789    3    32722   27681    784    206 2.30
2.40/2.44	c Backtracks by Clause: 622
2.40/2.44	c Backtracks by PB constraint: 23
2.40/2.44	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
2.40/2.44	c    3      691    381     5089    14669    54059   1059    283 2.44
2.40/2.44	s UNSATISFIABLE
2.40/2.44	c Total time: 2.44 s

Verifier Data 

ERROR: no interpretation found !

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1877530-1245129760/watcher-1877530-1245129760 -o /tmp/evaluation-result-1877530-1245129760/solver-1877530-1245129760 -C 1800 -W 2000 -M 1800 bsolo -l2 -t1800 -m1800 HOME/instance-1877530-1245129760.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): 2000 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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.99 0.97 0.98 3/64 3209
/proc/meminfo: memFree=914672/2055920 swapFree=4192952/4192956
[pid=3209] ppid=3207 vsize=11248 CPUtime=0
/proc/3209/stat : 3209 (bsolo) R 3207 3209 2849 0 -1 4194304 256 0 0 0 0 0 0 0 18 0 1 0 180575329 11517952 240 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3209/statm: 2812 240 176 640 0 2033 0

[startup+0.0223461 s]
/proc/loadavg: 0.99 0.97 0.98 3/64 3209
/proc/meminfo: memFree=914672/2055920 swapFree=4192952/4192956
[pid=3209] ppid=3207 vsize=11804 CPUtime=0.02
/proc/3209/stat : 3209 (bsolo) R 3207 3209 2849 0 -1 4194304 431 0 0 0 2 0 0 0 18 0 1 0 180575329 12087296 415 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3209/statm: 2951 416 207 640 0 2172 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 11804

[startup+0.101354 s]
/proc/loadavg: 0.99 0.97 0.98 3/64 3209
/proc/meminfo: memFree=914672/2055920 swapFree=4192952/4192956
[pid=3209] ppid=3207 vsize=14492 CPUtime=0.1
/proc/3209/stat : 3209 (bsolo) R 3207 3209 2849 0 -1 4194304 1326 0 0 0 9 1 0 0 18 0 1 0 180575329 14839808 1175 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3209/statm: 3623 1175 189 640 0 2979 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 14492

[startup+0.301375 s]
/proc/loadavg: 0.99 0.97 0.98 3/64 3209
/proc/meminfo: memFree=914672/2055920 swapFree=4192952/4192956
[pid=3209] ppid=3207 vsize=14492 CPUtime=0.3
/proc/3209/stat : 3209 (bsolo) R 3207 3209 2849 0 -1 4194304 1336 0 0 0 29 1 0 0 19 0 1 0 180575329 14839808 1185 1992294400 134512640 137136520 4294956256 18446744073709551615 136509145 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3209/statm: 3623 1185 189 640 0 2979 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 14492

[startup+0.70142 s]
/proc/loadavg: 0.99 0.97 0.98 3/64 3209
/proc/meminfo: memFree=914672/2055920 swapFree=4192952/4192956
[pid=3209] ppid=3207 vsize=14492 CPUtime=0.7
/proc/3209/stat : 3209 (bsolo) R 3207 3209 2849 0 -1 4194304 1344 0 0 0 69 1 0 0 22 0 1 0 180575329 14839808 1193 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3209/statm: 3623 1193 189 640 0 2979 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 14492

[startup+1.50151 s]
/proc/loadavg: 0.99 0.97 0.98 2/65 3210
/proc/meminfo: memFree=910568/2055920 swapFree=4192952/4192956
[pid=3209] ppid=3207 vsize=14624 CPUtime=1.49
/proc/3209/stat : 3209 (bsolo) R 3207 3209 2849 0 -1 4194304 1355 0 0 0 148 1 0 0 25 0 1 0 180575329 14974976 1204 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3209/statm: 3656 1204 189 640 0 3012 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 14624

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

[startup+1.90155 s]
/proc/loadavg: 0.99 0.97 0.98 2/65 3210
/proc/meminfo: memFree=910568/2055920 swapFree=4192952/4192956
[pid=3209] ppid=3207 vsize=14624 CPUtime=1.89
/proc/3209/stat : 3209 (bsolo) R 3207 3209 2849 0 -1 4194304 1360 0 0 0 188 1 0 0 25 0 1 0 180575329 14974976 1209 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3209/statm: 3656 1209 189 640 0 3012 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 14624

[startup+2.3016 s]
/proc/loadavg: 0.99 0.97 0.98 2/65 3210
/proc/meminfo: memFree=910184/2055920 swapFree=4192952/4192956
[pid=3209] ppid=3207 vsize=14668 CPUtime=2.29
/proc/3209/stat : 3209 (bsolo) R 3207 3209 2849 0 -1 4194304 1423 0 0 0 227 2 0 0 25 0 1 0 180575329 15020032 1250 1992294400 134512640 137136520 4294956256 18446744073709551615 134617491 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3209/statm: 3667 1250 198 640 0 3023 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 14668

[startup+2.40161 s]
/proc/loadavg: 0.99 0.97 0.98 2/65 3210
/proc/meminfo: memFree=910184/2055920 swapFree=4192952/4192956
[pid=3209] ppid=3207 vsize=14668 CPUtime=2.4
/proc/3209/stat : 3209 (bsolo) R 3207 3209 2849 0 -1 4194304 1423 0 0 0 237 3 0 0 25 0 1 0 180575329 15020032 1250 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3209/statm: 3667 1250 198 640 0 3023 0
Current children cumulated CPU time (s) 2.4
Current children cumulated vsize (KiB) 14668

Child status: 0
Real time (s): 2.44323
CPU time (s): 2.44363
CPU user time (s): 2.41063
CPU system time (s): 0.032994
CPU usage (%): 100.016
Max. virtual memory (cumulated for all children) (KiB): 14668

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.41063
system time used= 0.032994
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1424
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= 2
involuntary context switches= 4

runsolver used 0.003999 second user time and 0.011998 second system time

The end

Launcher Data 

Begin job on node35 at 2009-06-16 07:22:40
IDJOB=1877530
IDBENCH=1478
IDSOLVER=699
FILE ID=node35/1877530-1245129760
PBS_JOBID= 9363679
Free space on /tmp= 66136 MiB

SOLVER NAME= bsolo 3.1
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/web/uclid_pb_benchmarks/normalized-dlx1c.ucl.opb
COMMAND LINE= bsolo -l2 -tTIMEOUT -mMEMLIMIT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1877530-1245129760/watcher-1877530-1245129760 -o /tmp/evaluation-result-1877530-1245129760/solver-1877530-1245129760 -C 1800 -W 2000 -M 1800  bsolo -l2 -t1800 -m1800 HOME/instance-1877530-1245129760.opb

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= d30cbdfbaf2c404a9c4e9217e33c734d
RANDOM SEED=1613930053

node35.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.232
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		: 3000.232
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:        915088 kB
Buffers:         84160 kB
Cached:         958072 kB
SwapCached:          4 kB
Active:          85524 kB
Inactive:       970644 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        915088 kB
SwapTotal:     4192956 kB
SwapFree:      4192952 kB
Dirty:            4484 kB
Writeback:           0 kB
Mapped:          23724 kB
Slab:            70608 kB
Committed_AS:   165004 kB
PageTables:       1400 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= 66132 MiB
End job on node35 at 2009-06-16 07:22:43