Trace number 1877693

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 6.52101 6.52508

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/
submitted-PB06/roussel/normalized-pigeon-cardinality-55-50.opb
MD5SUM277dd35641d3866b31d8fb041eb7f9fb
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 benchmark0.157975
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables2750
Total number of constraints105
Number of constraints which are clauses55
Number of constraints which are cardinality constraints (but not clauses)50
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint50
Maximum length of a constraint55
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 56
Number of bits of the biggest sum of numbers6
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-1877693-1245169250.opb
0.00/0.00	c File size is 48273 bytes.
0.00/0.00	c Highest Coefficient sum: 56
0.00/0.00	c Parsing was ok!!
0.00/0.00	c Total parsing time: 0.006 s
0.00/0.00	c Var: 2750 Constr: 105 55/50/0 Lit: 5500 Watch. Lit: 2860
0.00/0.00	c Obj. Vars: 0 (0 % of total variables)
0.09/0.13	c Pre-processing Time: 0.131 s
0.09/0.13	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.09/0.13	c        0   2750      105     5500   52     2860   49518      0      0 0.13
0.09/0.13	c Switching off lower bounding mode.
6.49/6.52	c      102   2750      240    96138  400    22083   54470    135    291 0.35
6.49/6.52	c      252   2750      406   235137  579    25653   59918    301    368 0.68
6.49/6.52	c      492   2750      845   657517  778    85708   65910    740    194 2.53
6.49/6.52	c      830   2750     1352  1118766  827   120684   72502   1247    136 6.09
6.49/6.52	c Backtracks by Clause: 805
6.49/6.52	c Backtracks by PB constraint: 72
6.49/6.52	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
6.49/6.52	c    4      877    236    15973     1413  1157286   1308    134 6.52
6.49/6.52	s UNSATISFIABLE
6.49/6.52	c Total time: 6.517 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-1877693-1245169250/watcher-1877693-1245169250 -o /tmp/evaluation-result-1877693-1245169250/solver-1877693-1245169250 -C 1800 -W 2000 -M 1800 bsolo -l2 -t1800 -m1800 HOME/instance-1877693-1245169250.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 0.98 3/64 2890
/proc/meminfo: memFree=1849512/2055920 swapFree=4182544/4192956
[pid=2890] ppid=2888 vsize=18580 CPUtime=0
/proc/2890/stat : 2890 (bsolo) R 2888 2890 2803 0 -1 4194304 267 0 0 0 0 0 0 0 18 0 1 0 184521408 19025920 251 1992294400 134512640 137136520 4294956256 18446744073709551615 136575102 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2890/statm: 4645 251 174 640 0 3989 0

[startup+0.094755 s]
/proc/loadavg: 0.99 0.97 0.98 3/64 2890
/proc/meminfo: memFree=1849512/2055920 swapFree=4182544/4192956
[pid=2890] ppid=2888 vsize=11224 CPUtime=0.08
/proc/2890/stat : 2890 (bsolo) R 2888 2890 2803 0 -1 4194304 418 0 0 0 8 0 0 0 18 0 1 0 184521408 11493376 390 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2890/statm: 2806 390 190 640 0 2162 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 11224

[startup+0.102756 s]
/proc/loadavg: 0.99 0.97 0.98 3/64 2890
/proc/meminfo: memFree=1849512/2055920 swapFree=4182544/4192956
[pid=2890] ppid=2888 vsize=11224 CPUtime=0.09
/proc/2890/stat : 2890 (bsolo) R 2888 2890 2803 0 -1 4194304 418 0 0 0 9 0 0 0 18 0 1 0 184521408 11493376 390 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2890/statm: 2806 390 190 640 0 2162 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11224

[startup+0.302803 s]
/proc/loadavg: 0.99 0.97 0.98 3/64 2890
/proc/meminfo: memFree=1849512/2055920 swapFree=4182544/4192956
[pid=2890] ppid=2888 vsize=12552 CPUtime=0.29
/proc/2890/stat : 2890 (bsolo) R 2888 2890 2803 0 -1 4194304 754 0 0 0 28 1 0 0 19 0 1 0 184521408 12853248 726 1992294400 134512640 137136520 4294956256 18446744073709551615 134574427 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2890/statm: 3138 726 196 640 0 2494 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 12552

[startup+0.701867 s]
/proc/loadavg: 0.99 0.97 0.98 3/64 2890
/proc/meminfo: memFree=1849512/2055920 swapFree=4182544/4192956
[pid=2890] ppid=2888 vsize=14716 CPUtime=0.69
/proc/2890/stat : 2890 (bsolo) R 2888 2890 2803 0 -1 4194304 1285 0 0 0 68 1 0 0 22 0 1 0 184521408 15069184 1257 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2890/statm: 3679 1257 196 640 0 3035 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 14716

[startup+1.50202 s]
/proc/loadavg: 0.99 0.97 0.98 2/65 2891
/proc/meminfo: memFree=1843680/2055920 swapFree=4182544/4192956
[pid=2890] ppid=2888 vsize=18200 CPUtime=1.49
/proc/2890/stat : 2890 (bsolo) R 2888 2890 2803 0 -1 4194304 2161 0 0 0 148 1 0 0 25 0 1 0 184521408 18636800 2133 1992294400 134512640 137136520 4294956256 18446744073709551615 134616694 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2890/statm: 4550 2133 196 640 0 3906 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 18200

[startup+3.10132 s]
/proc/loadavg: 0.99 0.97 0.98 2/65 2891
/proc/meminfo: memFree=1839584/2055920 swapFree=4182544/4192956
[pid=2890] ppid=2888 vsize=22780 CPUtime=3.09
/proc/2890/stat : 2890 (bsolo) R 2888 2890 2803 0 -1 4194304 3309 0 0 0 307 2 0 0 25 0 1 0 184521408 23326720 3281 1992294400 134512640 137136520 4294956256 18446744073709551615 136509112 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2890/statm: 5695 3281 196 640 0 5051 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 22780

[startup+6.30192 s]
/proc/loadavg: 0.99 0.97 0.98 2/65 2891
/proc/meminfo: memFree=1832544/2055920 swapFree=4182544/4192956
[pid=2890] ppid=2888 vsize=28444 CPUtime=6.28
/proc/2890/stat : 2890 (bsolo) R 2888 2890 2803 0 -1 4194304 4727 0 0 0 626 2 0 0 25 0 1 0 184521408 29126656 4699 1992294400 134512640 137136520 4294956256 18446744073709551615 134544140 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2890/statm: 7111 4699 196 640 0 6467 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 28444

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

[startup+6.50196 s]
/proc/loadavg: 0.99 0.97 0.98 2/65 2891
/proc/meminfo: memFree=1830752/2055920 swapFree=4182544/4192956
[pid=2890] ppid=2888 vsize=28852 CPUtime=6.49
/proc/2890/stat : 2890 (bsolo) R 2888 2890 2803 0 -1 4194304 4816 0 0 0 646 3 0 0 25 0 1 0 184521408 29544448 4788 1992294400 134512640 137136520 4294956256 18446744073709551615 134616694 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2890/statm: 7213 4788 196 640 0 6569 0
Current children cumulated CPU time (s) 6.49
Current children cumulated vsize (KiB) 28852

Child status: 0
Real time (s): 6.52508
CPU time (s): 6.52101
CPU user time (s): 6.48501
CPU system time (s): 0.035994
CPU usage (%): 99.9376
Max. virtual memory (cumulated for all children) (KiB): 28852

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 6.48501
system time used= 0.035994
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4817
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= 9

runsolver used 0.005999 second user time and 0.024996 second system time

The end

Launcher Data 

Begin job on node47 at 2009-06-16 18:20:50
IDJOB=1877693
IDBENCH=2573
IDSOLVER=699
FILE ID=node47/1877693-1245169250
PBS_JOBID= 9363882
Free space on /tmp= 65952 MiB

SOLVER NAME= bsolo 3.1
BENCH NAME= PB06/final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/roussel/normalized-pigeon-cardinality-55-50.opb
COMMAND LINE= bsolo -l2 -tTIMEOUT -mMEMLIMIT BENCHNAME
CONVERSION SCRIPT= PBconversionToLinear BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1877693-1245169250/watcher-1877693-1245169250 -o /tmp/evaluation-result-1877693-1245169250/solver-1877693-1245169250 -C 1800 -W 2000 -M 1800  bsolo -l2 -t1800 -m1800 HOME/instance-1877693-1245169250.opb

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

MD5SUM BENCH= 277dd35641d3866b31d8fb041eb7f9fb
RANDOM SEED=815078206

node47.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	: 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		: 3000.261
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:       1850056 kB
Buffers:         38616 kB
Cached:         100668 kB
SwapCached:       4196 kB
Active:          45476 kB
Inactive:       101676 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1850056 kB
SwapTotal:     4192956 kB
SwapFree:      4182544 kB
Dirty:            3988 kB
Writeback:           0 kB
Mapped:          13624 kB
Slab:            44696 kB
Committed_AS:   176868 kB
PageTables:       1448 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-1877693-1245169250.opb

Free space on /tmp at the end= 65948 MiB
End job on node47 at 2009-06-16 18:20:57