Trace number 1877536

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 7.19191 7.19492

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/web/
uclid_pb_benchmarks/normalized-dlx1c.rwmem.ucl.opb
MD5SUMd796017ccd28821dde70ee2d87448ada
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 benchmark0.543916
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables9051
Total number of constraints25833
Number of constraints which are clauses24941
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints892
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-1877536-1245130300.opb
0.00/0.00	c File size is 777160 bytes.
0.09/0.11	c Highest Coefficient sum: 126
0.09/0.11	c Parsing was ok!!
0.09/0.11	c Total parsing time: 0.108 s
0.09/0.12	c Var: 9051 Constr: 25833 24941/0/892 Lit: 67273 Watch. Lit: 52613
0.09/0.12	c Obj. Vars: 0 (0 % of total variables)
6.09/6.18	c Pre-processing Time: 6.177 s
6.09/6.18	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
6.09/6.18	c        0   6673    19356    52405    2    40074   24722      0      0 6.18
6.09/6.18	c Switching off lower bounding mode.
7.08/7.19	c      101   6673    19556    55897    2    42257   27195    200     16 6.28
7.08/7.19	c      252   6673    19838    60000    3    43603   29915    482     38 6.47
7.08/7.19	c      477   5755    20139    65851    3    44613   32907    783     71 6.68
7.08/7.19	c      815   4409    20566    76745    3    45606   36198   1210    116 7.01
7.08/7.19	c Backtracks by Clause: 1023
7.08/7.19	c Backtracks by PB constraint: 7
7.08/7.19	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
7.08/7.19	c    4     1031    529     8441    20816    81031   1460    143 7.19
7.08/7.19	s UNSATISFIABLE
7.08/7.19	c Total time: 7.189 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-1877536-1245130300/watcher-1877536-1245130300 -o /tmp/evaluation-result-1877536-1245130300/solver-1877536-1245130300 -C 1800 -W 2000 -M 1800 bsolo -l2 -t1800 -m1800 HOME/instance-1877536-1245130300.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: 1.00 1.00 1.00 3/64 6902
/proc/meminfo: memFree=1933640/2055920 swapFree=4182996/4192956
[pid=6902] ppid=6900 vsize=11472 CPUtime=0
/proc/6902/stat : 6902 (bsolo) R 6900 6902 6739 0 -1 4194304 256 0 0 0 0 0 0 0 18 0 1 0 180630588 11747328 240 1992294400 134512640 137136520 4294956256 18446744073709551615 136575102 0 0 4096 16384 0 0 0 17 1 0 0
/proc/6902/statm: 2868 241 176 640 0 2034 0

[startup+0.076711 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 6902
/proc/meminfo: memFree=1933640/2055920 swapFree=4182996/4192956
[pid=6902] ppid=6900 vsize=13696 CPUtime=0.07
/proc/6902/stat : 6902 (bsolo) R 6900 6902 6739 0 -1 4194304 946 0 0 0 7 0 0 0 18 0 1 0 180630588 14024704 930 1992294400 134512640 137136520 4294956256 18446744073709551615 136294929 0 0 4096 16384 0 0 0 17 1 0 0
/proc/6902/statm: 3424 930 301 640 0 2590 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 13696

[startup+0.102715 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 6902
/proc/meminfo: memFree=1933640/2055920 swapFree=4182996/4192956
[pid=6902] ppid=6900 vsize=14520 CPUtime=0.09
/proc/6902/stat : 6902 (bsolo) R 6900 6902 6739 0 -1 4194304 1179 0 0 0 9 0 0 0 18 0 1 0 180630588 14868480 1163 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/6902/statm: 3630 1163 347 640 0 2796 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 14520

[startup+0.302752 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 6902
/proc/meminfo: memFree=1933640/2055920 swapFree=4182996/4192956
[pid=6902] ppid=6900 vsize=16160 CPUtime=0.29
/proc/6902/stat : 6902 (bsolo) R 6900 6902 6739 0 -1 4194304 1780 0 0 0 29 0 0 0 19 0 1 0 180630588 16547840 1574 1992294400 134512640 137136520 4294956256 18446744073709551615 134545039 0 0 4096 16384 0 0 0 17 1 0 0
/proc/6902/statm: 4040 1574 189 640 0 3396 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 16160

[startup+0.701822 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 6902
/proc/meminfo: memFree=1933640/2055920 swapFree=4182996/4192956
[pid=6902] ppid=6900 vsize=16160 CPUtime=0.69
/proc/6902/stat : 6902 (bsolo) R 6900 6902 6739 0 -1 4194304 1790 0 0 0 69 0 0 0 22 0 1 0 180630588 16547840 1584 1992294400 134512640 137136520 4294956256 18446744073709551615 136502161 0 0 4096 16384 0 0 0 17 1 0 0
/proc/6902/statm: 4040 1584 189 640 0 3396 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 16160

[startup+1.50197 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 6903
/proc/meminfo: memFree=1928064/2055920 swapFree=4182996/4192956
[pid=6902] ppid=6900 vsize=16160 CPUtime=1.49
/proc/6902/stat : 6902 (bsolo) R 6900 6902 6739 0 -1 4194304 1794 0 0 0 149 0 0 0 25 0 1 0 180630588 16547840 1588 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/6902/statm: 4040 1588 189 640 0 3396 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 16160

[startup+3.10125 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 6903
/proc/meminfo: memFree=1927872/2055920 swapFree=4182996/4192956
[pid=6902] ppid=6900 vsize=16160 CPUtime=3.09
/proc/6902/stat : 6902 (bsolo) R 6900 6902 6739 0 -1 4194304 1804 0 0 0 309 0 0 0 25 0 1 0 180630588 16547840 1598 1992294400 134512640 137136520 4294956256 18446744073709551615 134543865 0 0 4096 16384 0 0 0 17 1 0 0
/proc/6902/statm: 4040 1598 189 640 0 3396 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 16160

[startup+6.30183 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 6903
/proc/meminfo: memFree=1927680/2055920 swapFree=4182996/4192956
[pid=6902] ppid=6900 vsize=16464 CPUtime=6.29
/proc/6902/stat : 6902 (bsolo) R 6900 6902 6739 0 -1 4194304 1938 0 0 0 626 3 0 0 25 0 1 0 180630588 16859136 1660 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/6902/statm: 4116 1660 198 640 0 3472 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 16464

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

[startup+6.7019 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 6903
/proc/meminfo: memFree=1927424/2055920 swapFree=4182996/4192956
[pid=6902] ppid=6900 vsize=16464 CPUtime=6.69
/proc/6902/stat : 6902 (bsolo) R 6900 6902 6739 0 -1 4194304 1938 0 0 0 666 3 0 0 25 0 1 0 180630588 16859136 1660 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/6902/statm: 4116 1660 198 640 0 3472 0
Current children cumulated CPU time (s) 6.69
Current children cumulated vsize (KiB) 16464

[startup+7.10197 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 6903
/proc/meminfo: memFree=1927424/2055920 swapFree=4182996/4192956
[pid=6902] ppid=6900 vsize=16464 CPUtime=7.08
/proc/6902/stat : 6902 (bsolo) R 6900 6902 6739 0 -1 4194304 1955 0 0 0 705 3 0 0 25 0 1 0 180630588 16859136 1677 1992294400 134512640 137136520 4294956256 18446744073709551615 134543865 0 0 4096 16384 0 0 0 17 1 0 0
/proc/6902/statm: 4116 1677 198 640 0 3472 0
Current children cumulated CPU time (s) 7.08
Current children cumulated vsize (KiB) 16464

Child status: 0
Real time (s): 7.19492
CPU time (s): 7.19191
CPU user time (s): 7.14991
CPU system time (s): 0.041993
CPU usage (%): 99.9581
Max. virtual memory (cumulated for all children) (KiB): 16580

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 7.14991
system time used= 0.041993
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1956
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= 10

runsolver used 0.006998 second user time and 0.022996 second system time

The end

Launcher Data 

Begin job on node12 at 2009-06-16 07:31:40
IDJOB=1877536
IDBENCH=1486
IDSOLVER=699
FILE ID=node12/1877536-1245130300
PBS_JOBID= 9363681
Free space on /tmp= 66236 MiB

SOLVER NAME= bsolo 3.1
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/web/uclid_pb_benchmarks/normalized-dlx1c.rwmem.ucl.opb
COMMAND LINE= bsolo -l2 -tTIMEOUT -mMEMLIMIT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1877536-1245130300/watcher-1877536-1245130300 -o /tmp/evaluation-result-1877536-1245130300/solver-1877536-1245130300 -C 1800 -W 2000 -M 1800  bsolo -l2 -t1800 -m1800 HOME/instance-1877536-1245130300.opb

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

MD5SUM BENCH= d796017ccd28821dde70ee2d87448ada
RANDOM SEED=1887521931

node12.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		: 3000.281
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		: 3000.281
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:       1934120 kB
Buffers:          4068 kB
Cached:          50820 kB
SwapCached:       3728 kB
Active:          38768 kB
Inactive:        23960 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1934120 kB
SwapTotal:     4192956 kB
SwapFree:      4182996 kB
Dirty:            4696 kB
Writeback:           0 kB
Mapped:          14348 kB
Slab:            45144 kB
Committed_AS:   153724 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= 66232 MiB
End job on node12 at 2009-06-16 07:31:47