Trace number 1880141

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 15.7746 15.7793

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111221203.opb
MD5SUM85d02cb4edf665957c01ae4f54b30e83
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 benchmark1.23681
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables169
Total number of constraints101
Number of constraints which are clauses30
Number of constraints which are cardinality constraints (but not clauses)70
Number of constraints which are nor clauses,nor cardinality constraints1
Minimum length of a constraint2
Maximum length of a constraint169
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 38
Number of bits of the biggest number in a constraint 6
Biggest sum of numbers in a constraint 1228
Number of bits of the biggest sum of numbers11
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-1880141-1245115668.opb
0.00/0.00	c File size is 9911 bytes.
0.00/0.00	c Highest Coefficient sum: 1228
0.00/0.00	c Parsing was ok!!
0.00/0.00	c Total parsing time: 0.001 s
0.00/0.00	c Var: 169 Constr: 101 30/70/1 Lit: 1205 Watch. Lit: 901
0.00/0.00	c Obj. Vars: 0 (0 % of total variables)
0.00/0.00	c Pre-processing Time: 0.006 s
0.00/0.00	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.00	c        0    169       99     1179   11      880    2563      0      0 0.01
0.00/0.00	c Switching off lower bounding mode.
15.69/15.77	c      100    169      292    19815   67    11570    2820    193   1818 0.06
15.69/15.77	c      251    169      574    46057   80    25543    3103    475   1386 0.18
15.69/15.77	c      477    169      985    83153   84    42380    3414    886    967 0.49
15.69/15.77	c      816    169     1594   139577   87    65707    3756   1495    737 1.11
15.69/15.77	c     1325    169     2500   224480   89    97678    4132   2401    513 2.58
15.69/15.77	c     2090    169     3845   348538   90   141116    4546   3746    348 5.99
15.69/15.77	c     3241     91     3504   308569   88   124339    5001   3405    207 15.62
15.69/15.77	c Backtracks by Clause: 2420
15.69/15.77	c Backtracks by PB constraint: 224
15.69/15.77	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
15.69/15.77	c    7     3272    497     4418     3561   312764   3462    207 15.77
15.69/15.77	s UNSATISFIABLE
15.69/15.77	c Total time: 15.77 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-1880141-1245115668/watcher-1880141-1245115668 -o /tmp/evaluation-result-1880141-1245115668/solver-1880141-1245115668 -C 1800 -W 2000 -M 1800 bsolo -l3 -t1800 -m1800 HOME/instance-1880141-1245115668.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: 0.96 0.98 1.06 3/64 4021
/proc/meminfo: memFree=1285744/2055920 swapFree=4192812/4192956
[pid=4021] ppid=4019 vsize=10708 CPUtime=0
/proc/4021/stat : 4021 (bsolo) R 4019 4021 3762 0 -1 4194304 258 0 0 0 0 0 0 0 18 0 1 0 179163664 10964992 239 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4021/statm: 2677 239 188 640 0 2033 0

[startup+0.0553909 s]
/proc/loadavg: 0.96 0.98 1.06 3/64 4021
/proc/meminfo: memFree=1285744/2055920 swapFree=4192812/4192956
[pid=4021] ppid=4019 vsize=11100 CPUtime=0.05
/proc/4021/stat : 4021 (bsolo) R 4019 4021 3762 0 -1 4194304 391 0 0 0 5 0 0 0 18 0 1 0 179163664 11366400 372 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4021/statm: 2775 372 197 640 0 2131 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 11100

[startup+0.101395 s]
/proc/loadavg: 0.96 0.98 1.06 3/64 4021
/proc/meminfo: memFree=1285744/2055920 swapFree=4192812/4192956
[pid=4021] ppid=4019 vsize=11488 CPUtime=0.09
/proc/4021/stat : 4021 (bsolo) R 4019 4021 3762 0 -1 4194304 461 0 0 0 9 0 0 0 18 0 1 0 179163664 11763712 442 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4021/statm: 2872 442 197 640 0 2228 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11488

[startup+0.301417 s]
/proc/loadavg: 0.96 0.98 1.06 3/64 4021
/proc/meminfo: memFree=1285744/2055920 swapFree=4192812/4192956
[pid=4021] ppid=4019 vsize=12268 CPUtime=0.29
/proc/4021/stat : 4021 (bsolo) R 4019 4021 3762 0 -1 4194304 657 0 0 0 29 0 0 0 19 0 1 0 179163664 12562432 638 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4021/statm: 3067 638 197 640 0 2423 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 12268

[startup+0.701461 s]
/proc/loadavg: 0.96 0.98 1.06 3/64 4021
/proc/meminfo: memFree=1285744/2055920 swapFree=4192812/4192956
[pid=4021] ppid=4019 vsize=13308 CPUtime=0.69
/proc/4021/stat : 4021 (bsolo) R 4019 4021 3762 0 -1 4194304 913 0 0 0 69 0 0 0 22 0 1 0 179163664 13627392 894 1992294400 134512640 137136520 4294956256 18446744073709551615 136504572 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4021/statm: 3327 894 197 640 0 2683 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 13308

[startup+1.50155 s]
/proc/loadavg: 0.96 0.98 1.06 2/65 4022
/proc/meminfo: memFree=1282280/2055920 swapFree=4192812/4192956
[pid=4021] ppid=4019 vsize=14616 CPUtime=1.49
/proc/4021/stat : 4021 (bsolo) R 4019 4021 3762 0 -1 4194304 1270 0 0 0 149 0 0 0 25 0 1 0 179163664 14966784 1251 1992294400 134512640 137136520 4294956256 18446744073709551615 134605804 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4021/statm: 3654 1251 197 640 0 3010 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 14616

[startup+3.10173 s]
/proc/loadavg: 0.96 0.98 1.05 2/65 4022
/proc/meminfo: memFree=1280424/2055920 swapFree=4192812/4192956
[pid=4021] ppid=4019 vsize=16436 CPUtime=3.09
/proc/4021/stat : 4021 (bsolo) R 4019 4021 3762 0 -1 4194304 1713 0 0 0 308 1 0 0 25 0 1 0 179163664 16830464 1694 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4021/statm: 4109 1694 197 640 0 3465 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 16436

[startup+6.30108 s]
/proc/loadavg: 0.96 0.98 1.05 2/65 4022
/proc/meminfo: memFree=1277544/2055920 swapFree=4192812/4192956
[pid=4021] ppid=4019 vsize=18904 CPUtime=6.29
/proc/4021/stat : 4021 (bsolo) R 4019 4021 3762 0 -1 4194304 2318 0 0 0 628 1 0 0 25 0 1 0 179163664 19357696 2299 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4021/statm: 4726 2299 197 640 0 4082 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 18904

[startup+12.7018 s]
/proc/loadavg: 0.97 0.98 1.05 2/65 4022
/proc/meminfo: memFree=1275376/2055920 swapFree=4192812/4192956
[pid=4021] ppid=4019 vsize=20476 CPUtime=12.69
/proc/4021/stat : 4021 (bsolo) R 4019 4021 3762 0 -1 4194304 2725 0 0 0 1267 2 0 0 25 0 1 0 179163664 20967424 2706 1992294400 134512640 137136520 4294956256 18446744073709551615 136503012 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4021/statm: 5119 2706 197 640 0 4475 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 20476

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

[startup+14.306 s]
/proc/loadavg: 0.97 0.98 1.05 2/65 4022
/proc/meminfo: memFree=1275376/2055920 swapFree=4192812/4192956
[pid=4021] ppid=4019 vsize=20476 CPUtime=14.29
/proc/4021/stat : 4021 (bsolo) R 4019 4021 3762 0 -1 4194304 2725 0 0 0 1427 2 0 0 25 0 1 0 179163664 20967424 2706 1992294400 134512640 137136520 4294956256 18446744073709551615 134544434 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4021/statm: 5119 2706 197 640 0 4475 0
Current children cumulated CPU time (s) 14.29
Current children cumulated vsize (KiB) 20476

[startup+15.1011 s]
/proc/loadavg: 0.97 0.98 1.05 2/65 4022
/proc/meminfo: memFree=1275376/2055920 swapFree=4192812/4192956
[pid=4021] ppid=4019 vsize=20476 CPUtime=15.08
/proc/4021/stat : 4021 (bsolo) R 4019 4021 3762 0 -1 4194304 2725 0 0 0 1506 2 0 0 25 0 1 0 179163664 20967424 2706 1992294400 134512640 137136520 4294956256 18446744073709551615 134544249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4021/statm: 5119 2706 197 640 0 4475 0
Current children cumulated CPU time (s) 15.08
Current children cumulated vsize (KiB) 20476

[startup+15.5011 s]
/proc/loadavg: 0.97 0.98 1.05 2/65 4022
/proc/meminfo: memFree=1275376/2055920 swapFree=4192812/4192956
[pid=4021] ppid=4019 vsize=20476 CPUtime=15.49
/proc/4021/stat : 4021 (bsolo) R 4019 4021 3762 0 -1 4194304 2725 0 0 0 1546 3 0 0 25 0 1 0 179163664 20967424 2706 1992294400 134512640 137136520 4294956256 18446744073709551615 134574353 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4021/statm: 5119 2706 197 640 0 4475 0
Current children cumulated CPU time (s) 15.49
Current children cumulated vsize (KiB) 20476

[startup+15.7011 s]
/proc/loadavg: 0.97 0.98 1.05 2/65 4022
/proc/meminfo: memFree=1275376/2055920 swapFree=4192812/4192956
[pid=4021] ppid=4019 vsize=20476 CPUtime=15.69
/proc/4021/stat : 4021 (bsolo) R 4019 4021 3762 0 -1 4194304 2725 0 0 0 1566 3 0 0 25 0 1 0 179163664 20967424 2706 1992294400 134512640 137136520 4294956256 18446744073709551615 134599257 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4021/statm: 5119 2706 197 640 0 4475 0
Current children cumulated CPU time (s) 15.69
Current children cumulated vsize (KiB) 20476

Child status: 0
Real time (s): 15.7793
CPU time (s): 15.7746
CPU user time (s): 15.7416
CPU system time (s): 0.032994
CPU usage (%): 99.9703
Max. virtual memory (cumulated for all children) (KiB): 20476

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 15.7416
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= 2726
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= 19

runsolver used 0.020996 second user time and 0.042993 second system time

The end

Launcher Data 

Begin job on node42 at 2009-06-16 03:27:48
IDJOB=1880141
IDBENCH=1210
IDSOLVER=701
FILE ID=node42/1880141-1245115668
PBS_JOBID= 9363655
Free space on /tmp= 66148 MiB

SOLVER NAME= bsolo 3.1 pb
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1111221203.opb
COMMAND LINE= bsolo -l3 -tTIMEOUT -mMEMLIMIT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1880141-1245115668/watcher-1880141-1245115668 -o /tmp/evaluation-result-1880141-1245115668/solver-1880141-1245115668 -C 1800 -W 2000 -M 1800  bsolo -l3 -t1800 -m1800 HOME/instance-1880141-1245115668.opb

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

MD5SUM BENCH= 85d02cb4edf665957c01ae4f54b30e83
RANDOM SEED=1328521550

node42.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		: 3000.214
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		: 3000.214
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:       1286160 kB
Buffers:         37636 kB
Cached:         642088 kB
SwapCached:        140 kB
Active:         109688 kB
Inactive:       584112 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1286160 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3948 kB
Writeback:           0 kB
Mapped:          23700 kB
Slab:            62012 kB
Committed_AS:   155696 kB
PageTables:       1392 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= 66144 MiB
End job on node42 at 2009-06-16 03:28:04