Trace number 1878964

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 clUNSAT 0.449931 0.448982

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/web/
uclid_pb_benchmarks/normalized-25s.smv.opb
MD5SUMd7f2e5810238fdfe52a90b4b556d26aa
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 benchmark0.097984
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables5072
Total number of constraints12829
Number of constraints which are clauses11721
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints1108
Minimum length of a constraint1
Maximum length of a constraint15
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 165
Number of bits of the biggest number in a constraint 8
Biggest sum of numbers in a constraint 546
Number of bits of the biggest sum of numbers10
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: Clause 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-1878964-1245130279.opb
0.00/0.00	c File size is 474314 bytes.
0.04/0.06	c Highest Coefficient sum: 546
0.04/0.06	c Parsing was ok!!
0.04/0.06	c Total parsing time: 0.065 s
0.04/0.07	c Var: 5072 Constr: 12829 11721/0/1108 Lit: 43793 Watch. Lit: 26821
0.04/0.07	c Obj. Vars: 0 (0 % of total variables)
0.39/0.44	c Pre-processing Time: 0.441 s
0.39/0.44	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.39/0.44	c        0   2766     6525    28699    4    14646   33690      0      0 0.44
0.39/0.44	c Switching off lower bounding mode.
0.39/0.44	c Backtracks by Clause: 0
0.39/0.44	c Backtracks by PB constraint: 0
0.39/0.44	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.39/0.44	c    0       18     12      411     6543    28771     18     40 0.45
0.39/0.44	s UNSATISFIABLE
0.39/0.44	c Total time: 0.447 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-1878964-1245130279/watcher-1878964-1245130279 -o /tmp/evaluation-result-1878964-1245130279/solver-1878964-1245130279 -C 1800 -W 2000 -M 1800 bsolo -l1 -t1800 -m1800 HOME/instance-1878964-1245130279.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 1535
/proc/meminfo: memFree=1962080/2055920 swapFree=4181652/4192956
[pid=1535] ppid=1533 vsize=11172 CPUtime=0
/proc/1535/stat : 1535 (bsolo) R 1533 1535 1289 0 -1 4194304 254 0 0 0 0 0 0 0 18 0 1 0 180628045 11440128 238 1992294400 134512640 137136520 4294956256 18446744073709551615 136575102 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1535/statm: 2793 239 176 640 0 2033 0

[startup+0.043318 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 1535
/proc/meminfo: memFree=1962080/2055920 swapFree=4181652/4192956
[pid=1535] ppid=1533 vsize=12424 CPUtime=0.04
/proc/1535/stat : 1535 (bsolo) R 1533 1535 1289 0 -1 4194304 636 0 0 0 4 0 0 0 18 0 1 0 180628045 12722176 620 1992294400 134512640 137136520 4294956256 18446744073709551615 136661356 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1535/statm: 3106 621 245 640 0 2346 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 12424

[startup+0.101323 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 1535
/proc/meminfo: memFree=1962080/2055920 swapFree=4181652/4192956
[pid=1535] ppid=1533 vsize=13632 CPUtime=0.09
/proc/1535/stat : 1535 (bsolo) R 1533 1535 1289 0 -1 4194304 1102 0 0 0 9 0 0 0 18 0 1 0 180628045 13959168 970 1992294400 134512640 137136520 4294956256 18446744073709551615 134544758 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1535/statm: 3408 970 189 640 0 2764 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 13632

[startup+0.301342 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 1535
/proc/meminfo: memFree=1962080/2055920 swapFree=4181652/4192956
[pid=1535] ppid=1533 vsize=13764 CPUtime=0.3
/proc/1535/stat : 1535 (bsolo) R 1533 1535 1289 0 -1 4194304 1137 0 0 0 29 1 0 0 19 0 1 0 180628045 14094336 1005 1992294400 134512640 137136520 4294956256 18446744073709551615 136295575 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1535/statm: 3441 1005 189 640 0 2797 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 13764

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

[startup+0.401352 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 1535
/proc/meminfo: memFree=1962080/2055920 swapFree=4181652/4192956
[pid=1535] ppid=1533 vsize=13924 CPUtime=0.39
/proc/1535/stat : 1535 (bsolo) R 1533 1535 1289 0 -1 4194304 1161 0 0 0 38 1 0 0 19 0 1 0 180628045 14258176 1029 1992294400 134512640 137136520 4294956256 18446744073709551615 134540846 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1535/statm: 3481 1029 192 640 0 2837 0
Current children cumulated CPU time (s) 0.39
Current children cumulated vsize (KiB) 13924

Child status: 0
Real time (s): 0.448982
CPU time (s): 0.449931
CPU user time (s): 0.430934
CPU system time (s): 0.018997
CPU usage (%): 100.211
Max. virtual memory (cumulated for all children) (KiB): 13924

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.430934
system time used= 0.018997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1197
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= 0

runsolver used 0.001999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node18 at 2009-06-16 07:31:19
IDJOB=1878964
IDBENCH=1484
IDSOLVER=700
FILE ID=node18/1878964-1245130279
PBS_JOBID= 9363698
Free space on /tmp= 66172 MiB

SOLVER NAME= bsolo 3.1 cl
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/web/uclid_pb_benchmarks/normalized-25s.smv.opb
COMMAND LINE= bsolo -l1 -tTIMEOUT -mMEMLIMIT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1878964-1245130279/watcher-1878964-1245130279 -o /tmp/evaluation-result-1878964-1245130279/solver-1878964-1245130279 -C 1800 -W 2000 -M 1800  bsolo -l1 -t1800 -m1800 HOME/instance-1878964-1245130279.opb

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

MD5SUM BENCH= d7f2e5810238fdfe52a90b4b556d26aa
RANDOM SEED=1142169034

node18.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		: 3000.236
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		: 3000.236
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:       1962496 kB
Buffers:          5436 kB
Cached:          43712 kB
SwapCached:       5524 kB
Active:          24476 kB
Inactive:        32468 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1962496 kB
SwapTotal:     4192956 kB
SwapFree:      4181652 kB
Dirty:            4512 kB
Writeback:           0 kB
Mapped:          12840 kB
Slab:            22464 kB
Committed_AS:   138432 kB
PageTables:       1376 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= 66168 MiB
End job on node18 at 2009-06-16 07:31:19