Trace number 1880556

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 3.1 pbUNSAT 2.77258 2.77354

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/
submitted-PB06/roussel/normalized-pigeon-cardinality-65-60.opb
MD5SUM6f6d5bf9df98767681bd16885050de4b
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 benchmark0.229964
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables3900
Total number of constraints125
Number of constraints which are clauses65
Number of constraints which are cardinality constraints (but not clauses)60
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint60
Maximum length of a constraint65
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 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 66
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: Generic Pseudo-Boolean 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-1880556-1245238127.opb
0.00/0.00	c File size is 69123 bytes.
0.00/0.01	c Highest Coefficient sum: 66
0.00/0.01	c Parsing was ok!!
0.00/0.01	c Total parsing time: 0.01 s
0.00/0.01	c Var: 3900 Constr: 125 65/60/0 Lit: 7800 Watch. Lit: 4030
0.00/0.01	c Obj. Vars: 0 (0 % of total variables)
0.19/0.23	c Pre-processing Time: 0.229 s
0.19/0.23	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.19/0.23	c        0   3900      125     7800   62     4030   60021      0      0 0.23
0.19/0.23	c Switching off lower bounding mode.
2.69/2.77	c      100   3900      301   179862  597    50166   66024    176    209 0.48
2.69/2.77	c      251   3900      587   512223  872   143919   72627    462    154 1.62
2.69/2.77	c Backtracks by Clause: 237
2.69/2.77	c Backtracks by PB constraint: 183
2.69/2.77	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
2.69/2.77	c    2      420    283    11933      852   756380    727    151 2.77
2.69/2.77	s UNSATISFIABLE
2.69/2.77	c Total time: 2.769 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-1880556-1245238127/watcher-1880556-1245238127 -o /tmp/evaluation-result-1880556-1245238127/solver-1880556-1245238127 -C 1800 -W 2000 -M 1800 bsolo -l3 -t1800 -m1800 HOME/instance-1880556-1245238127.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 0.82 2/65 20577
/proc/meminfo: memFree=1453112/2055920 swapFree=4192812/4192956
[pid=20577] ppid=20575 vsize=18732 CPUtime=0
/proc/20577/stat : 20577 (bsolo) R 20575 20577 20492 0 -1 4194304 283 0 0 0 0 0 0 0 20 0 1 0 191410738 19181568 267 1992294400 134512640 137136520 4294956256 18446744073709551615 136575102 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20577/statm: 4683 268 176 640 0 4022 0

[startup+0.0731911 s]
/proc/loadavg: 0.99 0.97 0.82 2/65 20577
/proc/meminfo: memFree=1453112/2055920 swapFree=4192812/4192956
[pid=20577] ppid=20575 vsize=11356 CPUtime=0.06
/proc/20577/stat : 20577 (bsolo) R 20575 20577 20492 0 -1 4194304 445 0 0 0 6 0 0 0 20 0 1 0 191410738 11628544 412 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20577/statm: 2839 412 188 640 0 2195 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 11356

[startup+0.101194 s]
/proc/loadavg: 0.99 0.97 0.82 2/65 20577
/proc/meminfo: memFree=1453112/2055920 swapFree=4192812/4192956
[pid=20577] ppid=20575 vsize=11356 CPUtime=0.09
/proc/20577/stat : 20577 (bsolo) R 20575 20577 20492 0 -1 4194304 445 0 0 0 9 0 0 0 20 0 1 0 191410738 11628544 412 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20577/statm: 2839 412 188 640 0 2195 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11356

[startup+0.301219 s]
/proc/loadavg: 0.99 0.97 0.82 2/65 20577
/proc/meminfo: memFree=1453112/2055920 swapFree=4192812/4192956
[pid=20577] ppid=20575 vsize=12376 CPUtime=0.29
/proc/20577/stat : 20577 (bsolo) R 20575 20577 20492 0 -1 4194304 701 0 0 0 28 1 0 0 22 0 1 0 191410738 12673024 655 1992294400 134512640 137136520 4294956256 18446744073709551615 136501965 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20577/statm: 3094 655 196 640 0 2450 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 12376

[startup+0.701269 s]
/proc/loadavg: 0.99 0.97 0.82 2/65 20577
/proc/meminfo: memFree=1453112/2055920 swapFree=4192812/4192956
[pid=20577] ppid=20575 vsize=16628 CPUtime=0.69
/proc/20577/stat : 20577 (bsolo) R 20575 20577 20492 0 -1 4194304 1778 0 0 0 68 1 0 0 25 0 1 0 191410738 17027072 1732 1992294400 134512640 137136520 4294956256 18446744073709551615 134544148 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20577/statm: 4157 1732 196 640 0 3513 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 16628

[startup+1.50137 s]
/proc/loadavg: 0.99 0.97 0.82 2/66 20578
/proc/meminfo: memFree=1445104/2055920 swapFree=4192812/4192956
[pid=20577] ppid=20575 vsize=20772 CPUtime=1.49
/proc/20577/stat : 20577 (bsolo) R 20575 20577 20492 0 -1 4194304 2821 0 0 0 148 1 0 0 25 0 1 0 191410738 21270528 2775 1992294400 134512640 137136520 4294956256 18446744073709551615 134600223 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20577/statm: 5193 2775 196 640 0 4549 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 20772

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

[startup+2.30146 s]
/proc/loadavg: 0.99 0.97 0.82 2/66 20578
/proc/meminfo: memFree=1439600/2055920 swapFree=4192812/4192956
[pid=20577] ppid=20575 vsize=24668 CPUtime=2.29
/proc/20577/stat : 20577 (bsolo) R 20575 20577 20492 0 -1 4194304 3804 0 0 0 227 2 0 0 25 0 1 0 191410738 25260032 3758 1992294400 134512640 137136520 4294956256 18446744073709551615 134605512 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20577/statm: 6167 3758 196 640 0 5523 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 24668

[startup+2.70151 s]
/proc/loadavg: 0.99 0.97 0.82 2/66 20578
/proc/meminfo: memFree=1439600/2055920 swapFree=4192812/4192956
[pid=20577] ppid=20575 vsize=25508 CPUtime=2.69
/proc/20577/stat : 20577 (bsolo) R 20575 20577 20492 0 -1 4194304 4015 0 0 0 267 2 0 0 25 0 1 0 191410738 26120192 3969 1992294400 134512640 137136520 4294956256 18446744073709551615 134544256 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20577/statm: 6377 3969 196 640 0 5733 0
Current children cumulated CPU time (s) 2.69
Current children cumulated vsize (KiB) 25508

Child status: 0
Real time (s): 2.77354
CPU time (s): 2.77258
CPU user time (s): 2.74158
CPU system time (s): 0.030995
CPU usage (%): 99.9652
Max. virtual memory (cumulated for all children) (KiB): 25508

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.74158
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= 4083
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 0.010998 second system time

The end

Launcher Data 

Begin job on node80 at 2009-06-17 13:28:47
IDJOB=1880556
IDBENCH=2581
IDSOLVER=701
FILE ID=node80/1880556-1245238127
PBS_JOBID= 9372271
Free space on /tmp= 66532 MiB

SOLVER NAME= bsolo 3.1 pb
BENCH NAME= PB06/final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/roussel/normalized-pigeon-cardinality-65-60.opb
COMMAND LINE= bsolo -l3 -tTIMEOUT -mMEMLIMIT BENCHNAME
CONVERSION SCRIPT= PBconversionToLinear BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1880556-1245238127/watcher-1880556-1245238127 -o /tmp/evaluation-result-1880556-1245238127/solver-1880556-1245238127 -C 1800 -W 2000 -M 1800  bsolo -l3 -t1800 -m1800 HOME/instance-1880556-1245238127.opb

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

MD5SUM BENCH= 6f6d5bf9df98767681bd16885050de4b
RANDOM SEED=535842836

node80.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		: 3000.234
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1453592 kB
Buffers:          6180 kB
Cached:         530952 kB
SwapCached:          0 kB
Active:          39268 kB
Inactive:       511680 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1453592 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            4008 kB
Writeback:           0 kB
Mapped:          23584 kB
Slab:            37256 kB
Committed_AS:    79724 kB
PageTables:       1388 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

CONVERSION COMMAND LINE= PBconversionToLinear HOME/instance-1880556-1245238127.opb

Free space on /tmp at the end= 66528 MiB
End job on node80 at 2009-06-17 13:28:50