Trace number 1880199

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 2.39264 2.39244

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111220019.opb
MD5SUMbea0618f5000a66b40afd2831998ebf2
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 benchmark0.52492
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 1259
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-1880199-1245115950.opb
0.00/0.00	c File size is 9907 bytes.
0.00/0.00	c Highest Coefficient sum: 1259
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: 0.005 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.
2.29/2.39	c      100    169      298    20325   68    12757    2820    199   1923 0.05
2.29/2.39	c      250    169      593    48078   81    27808    3103    494   1336 0.19
2.29/2.39	c      476    169     1041    88894   85    50351    3414    942    846 0.56
2.29/2.39	c      817    169     1688   150450   89    77242    3756   1589    568 1.44
2.29/2.39	c Backtracks by Clause: 847
2.29/2.39	c Backtracks by PB constraint: 154
2.29/2.39	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
2.29/2.39	c    4     1065    219     1727     2153   192105   2054    445 2.39
2.29/2.39	s UNSATISFIABLE
2.29/2.39	c Total time: 2.389 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-1880199-1245115950/watcher-1880199-1245115950 -o /tmp/evaluation-result-1880199-1245115950/solver-1880199-1245115950 -C 1800 -W 2000 -M 1800 bsolo -l3 -t1800 -m1800 HOME/instance-1880199-1245115950.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: 0.98 0.97 1.02 3/64 31417
/proc/meminfo: memFree=1500648/2055920 swapFree=4192812/4192956
[pid=31417] ppid=31415 vsize=10708 CPUtime=0
/proc/31417/stat : 31417 (bsolo) R 31415 31417 30391 0 -1 4194304 258 0 0 0 0 0 0 0 18 0 1 0 179195361 10964992 239 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31417/statm: 2677 239 188 640 0 2033 0

[startup+0.0883729 s]
/proc/loadavg: 0.98 0.97 1.02 3/64 31417
/proc/meminfo: memFree=1500648/2055920 swapFree=4192812/4192956
[pid=31417] ppid=31415 vsize=11488 CPUtime=0.08
/proc/31417/stat : 31417 (bsolo) R 31415 31417 30391 0 -1 4194304 460 0 0 0 8 0 0 0 18 0 1 0 179195361 11763712 441 1992294400 134512640 137136520 4294956256 18446744073709551615 134543942 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31417/statm: 2872 441 196 640 0 2228 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 11488

[startup+0.101374 s]
/proc/loadavg: 0.98 0.97 1.02 3/64 31417
/proc/meminfo: memFree=1500648/2055920 swapFree=4192812/4192956
[pid=31417] ppid=31415 vsize=11488 CPUtime=0.09
/proc/31417/stat : 31417 (bsolo) R 31415 31417 30391 0 -1 4194304 478 0 0 0 9 0 0 0 18 0 1 0 179195361 11763712 459 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31417/statm: 2872 459 197 640 0 2228 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11488

[startup+0.301408 s]
/proc/loadavg: 0.98 0.97 1.02 3/64 31417
/proc/meminfo: memFree=1500648/2055920 swapFree=4192812/4192956
[pid=31417] ppid=31415 vsize=12396 CPUtime=0.29
/proc/31417/stat : 31417 (bsolo) R 31415 31417 30391 0 -1 4194304 689 0 0 0 29 0 0 0 19 0 1 0 179195361 12693504 670 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31417/statm: 3099 670 197 640 0 2455 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 12396

[startup+0.701474 s]
/proc/loadavg: 0.98 0.97 1.02 3/64 31417
/proc/meminfo: memFree=1500648/2055920 swapFree=4192812/4192956
[pid=31417] ppid=31415 vsize=13304 CPUtime=0.69
/proc/31417/stat : 31417 (bsolo) R 31415 31417 30391 0 -1 4194304 939 0 0 0 68 1 0 0 22 0 1 0 179195361 13623296 920 1992294400 134512640 137136520 4294956256 18446744073709551615 134544443 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31417/statm: 3326 920 197 640 0 2682 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 13304

[startup+1.50161 s]
/proc/loadavg: 0.98 0.97 1.02 2/65 31418
/proc/meminfo: memFree=1496992/2055920 swapFree=4192812/4192956
[pid=31417] ppid=31415 vsize=14604 CPUtime=1.49
/proc/31417/stat : 31417 (bsolo) R 31415 31417 30391 0 -1 4194304 1248 0 0 0 148 1 0 0 25 0 1 0 179195361 14954496 1229 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31417/statm: 3651 1229 197 640 0 3007 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 14604

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

[startup+1.90167 s]
/proc/loadavg: 0.98 0.97 1.02 2/65 31418
/proc/meminfo: memFree=1496992/2055920 swapFree=4192812/4192956
[pid=31417] ppid=31415 vsize=15124 CPUtime=1.89
/proc/31417/stat : 31417 (bsolo) R 31415 31417 30391 0 -1 4194304 1372 0 0 0 188 1 0 0 25 0 1 0 179195361 15486976 1353 1992294400 134512640 137136520 4294956256 18446744073709551615 134544129 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31417/statm: 3781 1353 197 640 0 3137 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 15124

[startup+2.30174 s]
/proc/loadavg: 0.98 0.97 1.02 2/65 31418
/proc/meminfo: memFree=1495456/2055920 swapFree=4192812/4192956
[pid=31417] ppid=31415 vsize=15520 CPUtime=2.29
/proc/31417/stat : 31417 (bsolo) R 31415 31417 30391 0 -1 4194304 1471 0 0 0 228 1 0 0 25 0 1 0 179195361 15892480 1452 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31417/statm: 3880 1452 197 640 0 3236 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 15520

Child status: 0
Real time (s): 2.39244
CPU time (s): 2.39264
CPU user time (s): 2.37464
CPU system time (s): 0.017997
CPU usage (%): 100.008
Max. virtual memory (cumulated for all children) (KiB): 15520

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.37464
system time used= 0.017997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1485
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= 2

runsolver used 0.001999 second user time and 0.014997 second system time

The end

Launcher Data 

Begin job on node15 at 2009-06-16 03:32:30
IDJOB=1880199
IDBENCH=1268
IDSOLVER=701
FILE ID=node15/1880199-1245115950
PBS_JOBID= 9363653
Free space on /tmp= 66304 MiB

SOLVER NAME= bsolo 3.1 pb
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1111220019.opb
COMMAND LINE= bsolo -l3 -tTIMEOUT -mMEMLIMIT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1880199-1245115950/watcher-1880199-1245115950 -o /tmp/evaluation-result-1880199-1245115950/solver-1880199-1245115950 -C 1800 -W 2000 -M 1800  bsolo -l3 -t1800 -m1800 HOME/instance-1880199-1245115950.opb

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

MD5SUM BENCH= bea0618f5000a66b40afd2831998ebf2
RANDOM SEED=133573325

node15.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		: 3000.261
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	: 5931.00
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		: 3000.261
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:       1501064 kB
Buffers:         32268 kB
Cached:         441624 kB
SwapCached:          0 kB
Active:          65496 kB
Inactive:       421772 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1501064 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3948 kB
Writeback:           0 kB
Mapped:          23192 kB
Slab:            53528 kB
Committed_AS:   161336 kB
PageTables:       1460 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= 66300 MiB
End job on node15 at 2009-06-16 03:32:32