Trace number 1877225

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 3.1SAT 1.65375 1.65636

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/
prestwich/robin/normalized-robin10.opb
MD5SUM93a881e30e7c33fefd66d9521eb49849
Bench CategoryDEC-SMALLINT (no optimisation, small integers)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark0
Best CPU time to get the best result obtained on this benchmark0.175972
Has Objective FunctionNO
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved NO
Number of variables2025
Total number of constraints410
Number of constraints which are clauses180
Number of constraints which are cardinality constraints (but not clauses)230
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint45
Maximum length of a constraint81
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 2
Number of bits of the biggest number in a constraint 2
Biggest sum of numbers in a constraint 83
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-1877225-1245113394.opb
0.00/0.00	c File size is 174482 bytes.
0.00/0.02	c Highest Coefficient sum: 83
0.00/0.02	c Parsing was ok!!
0.00/0.02	c Total parsing time: 0.023 s
0.00/0.02	c Var: 2025 Constr: 410 180/230/0 Lit: 20250 Watch. Lit: 12460
0.00/0.02	c Obj. Vars: 0 (0 % of total variables)
0.19/0.25	c Pre-processing Time: 0.248 s
0.19/0.25	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.19/0.25	c        0   2025      410    20250   49    12460  168860      0      0 0.25
0.19/0.25	c Switching off lower bounding mode.
1.59/1.65	c      100   2025      517    45411   87    12895  185747    107    332 0.30
1.59/1.65	c      250   2025      683    71190  104    13590  204322    273    657 0.38
1.59/1.65	c      475   2025      926   120837  130    14480  224755    516    913 0.52
1.59/1.65	c      814   2025     1297   255836  197    15784  247231    887    880 0.93
1.59/1.65	c     1322   2025     1851   364526  196    18287  271955   1441    968 1.36
1.59/1.65	c Backtracks by Clause: 1559
1.59/1.65	c Backtracks by PB constraint: 59
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-x2017 -x2018 -x2019 -x2020 -x2021 -x2022 -x2023 -x2024 -x2025 
1.59/1.65	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
1.59/1.65	c    5     1618    939    33941     2173   431050   1763    980 1.65
1.59/1.65	s SATISFIABLE
1.59/1.65	c Total time: 1.651 s

Verifier Data 

OK	0

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1877225-1245113394/watcher-1877225-1245113394 -o /tmp/evaluation-result-1877225-1245113394/solver-1877225-1245113394 -C 1800 -W 2000 -M 1800 bsolo -l2 -t1800 -m1800 HOME/instance-1877225-1245113394.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: 0.94 1.07 1.36 2/64 5732
/proc/meminfo: memFree=1375496/2055920 swapFree=4191900/4192956
[pid=5732] ppid=5730 vsize=18688 CPUtime=0
/proc/5732/stat : 5732 (bsolo) R 5730 5732 5695 0 -1 4194304 239 0 0 0 0 0 0 0 18 0 1 0 178936558 19136512 223 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/5732/statm: 4672 223 172 640 0 3985 0

[startup+0.0289669 s]
/proc/loadavg: 0.94 1.07 1.36 2/64 5732
/proc/meminfo: memFree=1375496/2055920 swapFree=4191900/4192956
[pid=5732] ppid=5730 vsize=11524 CPUtime=0.02
/proc/5732/stat : 5732 (bsolo) R 5730 5732 5695 0 -1 4194304 499 0 0 0 2 0 0 0 18 0 1 0 178936558 11800576 440 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/5732/statm: 2881 440 187 640 0 2237 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 11524

[startup+0.101974 s]
/proc/loadavg: 0.94 1.07 1.36 2/64 5732
/proc/meminfo: memFree=1375496/2055920 swapFree=4191900/4192956
[pid=5732] ppid=5730 vsize=11524 CPUtime=0.09
/proc/5732/stat : 5732 (bsolo) R 5730 5732 5695 0 -1 4194304 500 0 0 0 9 0 0 0 18 0 1 0 178936558 11800576 441 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/5732/statm: 2881 441 188 640 0 2237 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11524

[startup+0.301997 s]
/proc/loadavg: 0.94 1.07 1.36 2/64 5732
/proc/meminfo: memFree=1375496/2055920 swapFree=4191900/4192956
[pid=5732] ppid=5730 vsize=11880 CPUtime=0.28
/proc/5732/stat : 5732 (bsolo) R 5730 5732 5695 0 -1 4194304 604 0 0 0 28 0 0 0 19 0 1 0 178936558 12165120 545 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/5732/statm: 2970 545 196 640 0 2326 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 11880

[startup+0.701041 s]
/proc/loadavg: 0.94 1.07 1.36 2/64 5732
/proc/meminfo: memFree=1375496/2055920 swapFree=4191900/4192956
[pid=5732] ppid=5730 vsize=13696 CPUtime=0.69
/proc/5732/stat : 5732 (bsolo) R 5730 5732 5695 0 -1 4194304 1071 0 0 0 68 1 0 0 22 0 1 0 178936558 14024704 1012 1992294400 134512640 137136520 4294956256 18446744073709551615 134616694 0 0 4096 16384 0 0 0 17 1 0 0
/proc/5732/statm: 3424 1012 196 640 0 2780 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 13696

[startup+1.50113 s]
/proc/loadavg: 0.94 1.07 1.36 2/65 5733
/proc/meminfo: memFree=1371008/2055920 swapFree=4191900/4192956
[pid=5732] ppid=5730 vsize=16584 CPUtime=1.49
/proc/5732/stat : 5732 (bsolo) R 5730 5732 5695 0 -1 4194304 1791 0 0 0 146 3 0 0 25 0 1 0 178936558 16982016 1732 1992294400 134512640 137136520 4294956256 18446744073709551615 134606766 0 0 4096 16384 0 0 0 17 1 0 0
/proc/5732/statm: 4146 1732 196 640 0 3502 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 16584

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

[startup+1.60114 s]
/proc/loadavg: 0.94 1.07 1.36 2/65 5733
/proc/meminfo: memFree=1371008/2055920 swapFree=4191900/4192956
[pid=5732] ppid=5730 vsize=16896 CPUtime=1.59
/proc/5732/stat : 5732 (bsolo) R 5730 5732 5695 0 -1 4194304 1873 0 0 0 156 3 0 0 25 0 1 0 178936558 17301504 1814 1992294400 134512640 137136520 4294956256 18446744073709551615 136518860 0 0 4096 16384 0 0 0 17 1 0 0
/proc/5732/statm: 4224 1814 196 640 0 3580 0
Current children cumulated CPU time (s) 1.59
Current children cumulated vsize (KiB) 16896

Child status: 0
Real time (s): 1.65636
CPU time (s): 1.65375
CPU user time (s): 1.61875
CPU system time (s): 0.034994
CPU usage (%): 99.8422
Max. virtual memory (cumulated for all children) (KiB): 16896

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.61875
system time used= 0.034994
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1919
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= 3
involuntary context switches= 1

runsolver used 0.006998 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node38 at 2009-06-16 02:49:54
IDJOB=1877225
IDBENCH=1154
IDSOLVER=699
FILE ID=node38/1877225-1245113394
PBS_JOBID= 9363647
Free space on /tmp= 66236 MiB

SOLVER NAME= bsolo 3.1
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/prestwich/robin/normalized-robin10.opb
COMMAND LINE= bsolo -l2 -tTIMEOUT -mMEMLIMIT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1877225-1245113394/watcher-1877225-1245113394 -o /tmp/evaluation-result-1877225-1245113394/solver-1877225-1245113394 -C 1800 -W 2000 -M 1800  bsolo -l2 -t1800 -m1800 HOME/instance-1877225-1245113394.opb

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

MD5SUM BENCH= 93a881e30e7c33fefd66d9521eb49849
RANDOM SEED=1945360822

node38.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:       1375976 kB
Buffers:         84788 kB
Cached:         493640 kB
SwapCached:        592 kB
Active:         135008 kB
Inactive:       456904 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1375976 kB
SwapTotal:     4192956 kB
SwapFree:      4191900 kB
Dirty:            4252 kB
Writeback:           0 kB
Mapped:          22368 kB
Slab:            74024 kB
Committed_AS:   136568 kB
PageTables:       1456 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= 66232 MiB
End job on node38 at 2009-06-16 02:49:56